CN105886118B - A kind of extraction process of loop type extractor - Google Patents

Abstract

The present invention relates to a kind of extraction process of loop type extractor, includes the following steps: that oil plant embryo advances from the upward extracting stage of feed zone to the left, slide subsequently into tail portion cabinet to lower layer, then the discharge port of downward extracting stage and head cabinet advances to the right；Concentrated blend in right feed zone oil bucket drops down onto left feed zone oil bucket after spraying to left feed zone, then drops back into right feed zone oil bucket after spraying to right feed zone, right feed zone oil bucket overflow to the left；It drops back into after upper extracting stage miscella spray in extracting stage oil bucket and by aqueduct feed zone oil bucket overflow to the right；Tail portion cabinet oil bucket is dropped back into after tail portion cabinet miscella spray, is also sprayed by getting over line repairing pipe into upper extracting stage；Lower extracting stage miscella drops back into lower extracting stage oil bucket after spraying and rearwardly cabinet oil bucket overflow；Dilute miscella drops back into after being sprayed to the left part for draining section to be drained in section oil bucket and extracting stage oil bucket overflow downwards；Novel solvent is sprayed in the middle part of section to draining.The process yields are big, reliable for operation.

Description

A kind of extraction process of loop type extractor

Technical field

The present invention relates to a kind of vegetable oil leaching equipment more particularly to a kind of extraction process of loop type extractor, belong to oil Rouge processing equipment technical field.

Background technique

Leaching is process the most key in oil refining process, and principle is the intersolubility using grease and solvent, molten Agent penetrates into solid oil plant, and dissolution grease forms concentrated blend, since there are concentration difference, the concentrated blend inside solid oil plant expands It is scattered in external dilute miscella, oil extraction is come out.The capital equipment leached in process is infuser, according to material characteristic And yield, generally using pot group type infuser, flat rotary extractor or ring type infuser etc..

Traditional loop type extractor includes ring chain, and the head lower end of ring chain is driven using single drive shaft, head Upper end is turned to using arc track, and tail portion bending section is diverted to lower layer, upper layer chain for the sliding of upper layer chain using semicircular track The lower section of item is equipped with upper layer screen, and lower layer's screen is equipped with below lower layer's scraper plate, and the lower section of upper layer screen is equipped with upper layer oil bucket, lower layer The lower section of screen is equipped with lower layer's oil bucket, and the top of upper and lower layer screen is respectively to be equipped with the bed of material, and the circumferential direction along chain is uniformly equipped with Heavy big scraper plate is respectively equipped with spray equipment above the upper and lower bed of material, carries out immersion extraction to material, the grease of leaching is fallen into In the oil bucket of lower section.

Production capacity is up to the super sized ring infuser of 10000 ton per days, and chain length is up to 130 meters or more, weight of equipment Up to hundreds of tons, every generation primary fault causes production line interruption that can all bring about great losses, therefore to the reliability requirement of equipment It is especially high.Traditional endless infuser has the following disadvantages:

1. the sprocket wheel and chain engagement place stress in drive shaft are big, abrasion weight；Chain while under tension and Moment, Stress is big, when have chain cleavage.

2. it is high to the requirement of track wearability using heavy big scraper plate, the abrasion-resistant stee conduct of hardness HB600 or more need to be used Sliding rail, it is difficult to purchase, solderability is poor, it is necessary to use bolt-connection, processing difficulties and airtightness is poor, operational process at bolt penetration hole The reasons such as middle vibration, impact can make to loosen at gasket, so as to cause escape.

3. the head section and tail arc segment structure size of traditional endless infuser are big, especially after equipment enlarging, highway transportation It is difficult；To reduce resistance, tail portion semicircular track preferably uses positive circular arc, but because limiting beyond traffic condition, the large-scale circle in part Using ellipse, frictional resistance is further increased for arc segmentation.

4. the material flare between scraper plate is scattered at the semicircular track overturning of tail portion, when scraper plate moves to lower layer It after at horizontal segment, is closed up between adjacent scraper plate to the state of being parallel to each other, the material loosely to collapse between scraper plate is squeezed into relatively by scraper plate It is closely knit, cause the stress of scraper plate and chain to increase, there is deformation and chain rupture risk, overhauls intensity and security risk is big.

5. tail portion semicircular track section is the cavity full of the wet dregs of rice, technical process, the wet dregs of rice and the oil plant such as no immersion, elution exist It inside can only static storage.

6. the bottom of heavy big scraper plate is held tightly with chain for the material first in first out for guaranteeing tail portion semicircular track section On track, the upper limb of heavy big scraper plate causes the height of heavy big scraper plate relatively high close to the inner wall scraper of shell external arc.When When heavy big scraper plate goes to lower layer, scraping between the lower edge and screen of scraper plate leads to increased wear, and large area friction causes to rub It wipes power to increase, abrasion aggravation, especially screen is made of light-duty stainless steel grid section, and abrasion easily leads to grid section gap and becomes larger, and makes More powder enter in miscella, generate harm to leaching system；Screen abrasion after must running check, replacement, cause operation at This height.

Summary of the invention

It is an object of the present invention to overcome problems of the prior art, a kind of extraction work of loop type extractor is provided Skill, day leaching yield is big, and solvent consumption is low, runs smoothly reliable.

In order to solve the above technical problems, the extraction process of a kind of loop type extractor of the invention, in turn includes the following steps: (1) oil plant embryo enters the right part of feed zone from the feed inlet at the top of buffer bin and advances to the left along upper layer screen, right feed zone oil bucket In concentrated blend be pumped to after left feed zone spray groove spray downwards and dropped down onto left feed zone oil bucket by right feed zone circulation, a left side Miscella in feed zone oil bucket be pumped to after right feed zone spray groove spray downwards by left feed zone circulation drop back into the right side into Expect in section oil bucket, right feed zone oil bucket feed zone oil bucket overflow to the left；(2) the wet dregs of rice enter upper extracting stage and continue to be moved to the left, upper leaching The miscella in section oil bucket is pumped by upper extracting stage circulation and drops back into upper extracting stage oil after supreme extracting stage spray groove sprays downwards out In bucket, and upper extracting stage oil bucket passes through aqueduct feed zone oil bucket overflow to the right；(3) the wet dregs of rice enter tail portion from the left end of upper extracting stage Cabinet, along slide carriage free skating drop down on lower layered material bed after move right；Miscella in the cabinet oil bucket of tail portion is followed by tail portion cabinet Ring pump is promoted and drops back into tail portion cabinet oil bucket after spraying on slide carriage and tail portion cabinet lower layer material bed, mixed in the cabinet oil bucket of tail portion Close oil also by more line repairing pipe enter upper extracting stage oil bucket and by line spray groove spray upper extracting stage the left part bed of material On；(4) the wet dregs of rice enter to the right lower extracting stage from tail portion cabinet, and the miscella in lower extracting stage oil bucket is recycled by lower extracting stage and pumped It is dropped back into after being sprayed downwards to lower extracting stage spray groove in lower extracting stage oil bucket, and rearwardly cabinet oil bucket overflows lower extracting stage oil bucket Stream；The wet dregs of rice from lower extracting stage to the right enter drains section, drain dilute miscella in section oil bucket drained section circulation be pumped to drip Dry section spray groove drops back into after spraying to the left part for draining section and drains section oil bucket, drains the downward extracting stage oil bucket of section oil bucket and overflows Stream；Novel solvent by novel solvent spray groove to drain sprayed in the middle part of section after drop back into and drain section oil bucket, then the wet dregs of rice continue Enter to the right and drains draining without spray section for section right part；(6) grouts after draining continue to enter head cabinet to the right, and from head The discharge port of the bottom of box is discharged.

Compared with the existing technology, the present invention achieves following the utility model has the advantages that (1) at the middle part for draining section, novel solvent passes through new Solvent pipe enters novel solvent spray groove and sprays downwards, and the drain section wet dregs of rice minimum to oil content carry out last immersion and elution, Obtain oil content and be lower than 0.8%(butt) grouts below, then grouts, which continue to be moved right into no spray section, is drained, It drains grouts and enters head cabinet to the right, be discharged from discharge port.(2) novel solvent is extremely low to concentration is become after the immersion elution of the wet dregs of rice Miscella falls into and drains in section oil bucket, drained section circulating pump extract out and send to drain section spray groove to drain the left part of section into Row spray, the drain section wet dregs of rice low to oil content time are impregnated and are eluted, and the miscella for obtaining low concentration, which drops back into, drains section In oil bucket, a section circulating pump extraction circulated sprinkling is drained.(3) the miscella for draining section oil bucket overflow flows to lower extracting stage oil bucket, quilt Lower extracting stage circulating pump is extracted out and is sent to lower extracting stage spray groove and sprays downwards, and the wet dregs of rice of the lower extracting stage slightly higher to oil content carry out It impregnates and elution, the miscella for obtaining slightly higher concentration drops back into lower extracting stage oil bucket, circulation spray is extracted out by lower extracting stage circulating pump Leaching.(4) traditional semicircular track tail portion pushes material downlink by heavy type scratch board and turns to, during steering downlink in the wet dregs of rice Break and has impregnated and elute；Material of the invention glides by gravity along slide carriage, contacts in whereabouts Duan Buyu scraper plate, in downlink process In continue impregnate and elute, substantially increase the production capacity and efficiency of leaching.(5) tail portion is carried out due to not needing scraper plate from upper And lower steering scraper, scraper plate of the invention can use light-duty bar shaped scraper plate, without using heavy big scraper plate, oil plant embryo and the wet dregs of rice Rough surface, mutual binding force is very big, only need to using lower height light-duty bar shaped scraper plate can just make times over The bed of material of blade height moves forward.On the rightmost side bucket overflow of extracting stage oil high concentration miscella by aqueduct enter it is right into Expect to be extracted out and sent to left feed zone spray groove by right feed zone circulating pump and spray downwards, to the wet of feed zone left part in section oil bucket The dregs of rice are impregnated and are eluted, and the miscella for obtaining very high concentration drops back into left feed zone oil bucket, then recycle pumping by left feed zone It out and send to right feed zone spray groove and sprays downwards, the oil plant embryo that feed zone right part has just enter into is impregnated and eluted, obtain The miscella of very high concentration drops back into right feed zone oil bucket；The extra miscella overflow to the left that struggles against of right feed zone oil enters left charging In section oil bucket.(7) after the oil plant embryo Initial Soak being had just enter into due to feed zone right part and elution, fall into right feed zone oil bucket Containing a large amount of dregs of rice end in miscella, pipeline, pump and equipment blocking are easily led to after sedimentation, is sent to by the extraction of right feed zone circulating pump Left feed zone spray groove spray, after the filtering of the wet dregs of rice bed of material of feed zone left part, can be obtained from left feed zone oil bucket containing it is miscellaneous compared with Few concentrated blend is conducive to later separation and evaporation.The highest miscella of concentration extracts the highest oil plant embryo of oil content, It can keep good effect of extracting.(8) the present invention realizes the reverse flow of material and solvent, and most fresh solvent soaking contains The minimum wet dregs of rice of oil mass, the slightly lower miscella of concentration impregnate the slightly higher wet dregs of rice of oil content, and highly concentrated miscella impregnates oil content The higher wet dregs of rice remain extract liquor and the biggish concentration difference of the wet dregs of rice, guarantee effect of extracting.

As an improvement of the present invention, concentrated blend from step (1) in left feed zone oil bucket top overflow outflow, by leaching Fuel-displaced be pumped into level-one cyclone hydraulic separators of device removes thick impurity, enters back into second level cyclone hydraulic separators and removes thin impurity, then clearly Clean concentrated blend enters temporary storage tank, then is mixed oily drawing pump from the lower part of temporary storage tank and extracts out and enter vapo(u)rization system and evaporate； The level-one cyclone hydraulic separators, second level cyclone hydraulic separators and temporary pot bottom discharge miscella by return header return to the right side into Expect section spray groove, the oil plant embryo having just enter into is sprayed.The miscella being obtained by extraction is revolved through level-one cyclone hydraulic separators and second level It after liquid/gas separator removes impurity, then precipitates through temporary storage tank, clean miscella enters vapo(u)rization system evaporation, level-one rotary filter press The miscella containing impurity that device, second level cyclone hydraulic separators are discharged with temporary pot bottom sprays the oil plant embryo having just enter into, It realizes the classification cycle of concentrated blend and all recycles.

As a further improvement of the present invention, step (2) in upper extracting stage oil bucket and upper extracting stage spray groove be respectively equipped with it is more Grade, every grade of upper extracting stage oil bucket are extracted out and are sent to the upper extracting stage spray groove of this grade by accordingly upper extracting stage circulating pump, left side The upper extracting stage oil bucket of the upper extracting stage oil bucket overflow of upper extracting stage oil bucket successively to the right, the rightmost side passes through the aqueduct to the right Feed zone oil bucket overflow；Step (4) in lower extracting stage oil bucket and lower extracting stage spray groove be respectively equipped with multistage, every grade of lower extracting stage Oil bucket is accordingly descended extracting stage circulating pump to extract out and is sent to the lower extracting stage spray groove of this grade, and the lower extracting stage oil bucket on right side is successively Lower extracting stage oil bucket overflow to the left, the lower extracting stage oil bucket rearwardly cabinet oil bucket overflow of the leftmost side.Divide in each unit Grade carries out immersion elution, so that the low wet dregs of rice of oil content are contacted with dilute miscella, the high wet dregs of rice of oil content are contacted with concentrated blend, It remains extract liquor and the biggish concentration difference of the wet dregs of rice, guarantees effect of extracting.

As a further improvement of the present invention, the loop type extractor includes infuser shell and is located in infuser shell Ring chain, multiple scraper plates are uniformly installed, the infuser shell is by the head cabinet, charging on the ring chain Section, upper extracting stage, lower extracting stage drain section and the tail portion cabinet is mutually spliced, and the upper layer of the ring chain is located at In the feed zone and upper extracting stage, the lower layer of the ring chain is located at the lower extracting stage and drains in section；The charging The right output port of section passes through flange with the right output port for draining section respectively and is connected with the upper and lower ends of the head cabinet, described The left port of upper extracting stage and the left port of the lower extracting stage pass through the upper and lower ends phase of flange Yu the tail portion cabinet respectively Connection, the left port of the feed zone are connected with the right output port of the upper extracting stage by flange, the right side of the lower extracting stage Port is connected with the left port for draining section by flange；The buffer bin is connected to the right end top of the feed zone, Offgas outlet is respectively equipped at the top of the head cabinet, feed zone, upper extracting stage and tail portion cabinet.After ring chain starting, Oil plant embryo enters from the feed inlet at the top of buffer bin, is layered on upper layer material bed under drawing-in device driving, upper layer scraper plate pushes object Expect that right-to-left advances from the upward extracting stage of feed zone, become the wet dregs of rice after oil plant indusium miscella spray, the wet dregs of rice are from upper extracting stage Left end enter tail portion cabinet, material drops down on lower layered material bed in the cabinet of tail portion, and lower layer's scraper plate pushes material from tail portion cabinet Bottom to the right successively by lower extracting stage and draining section, finally reach head cabinet and be discharged from discharge port.Material was advancing Cheng Zhong, extract liquor constantly spray material, impregnated and are extracted, and the grease of leaching is fallen into the oil bucket of lower section.The present invention will Huge infuser is divided into several standalone modules, convenient in the prepackage of manufacturing shop and sub-unit transport, arriving erecting bed can It is integral easily to connect, greatly reduce on-site installation work amount and construction period.

As an improvement of the present invention, the lower part of the head cabinet is equipped with lower drive shaft, is equipped in the lower drive shaft The top of lower sprocket, the head cabinet is equipped with upper guiding device；The top of the tail portion cabinet be equipped with upper drive shaft, it is described on Upper sprocket wheel is installed, the lower part of the tail portion cabinet is equipped with lower tensioning shaft, is equipped with down and opens on the lower tensioning shaft in drive shaft Tight sprocket wheel, the ring chain is successively on the lower sprocket, upper guiding device, upper sprocket wheel and lower tightener sprocket；It is described Upper guiding device is sliding rail or upper tightener sprocket；The upper drive shaft is driven by upper fluid pressure drive device, the lower drive shaft by Lower fluid pressure drive device driving, the upper fluid pressure drive device and the lower fluid pressure drive device are controlled by the same hydraulic pump It stands, the oil inlet of the upper fluid pressure drive device and the lower fluid pressure drive device is respectively by for oil inlet pipe and hydraulic oil fuel feeding General pipeline be connected, the oil return opening of the upper fluid pressure drive device and the lower fluid pressure drive device pass through respectively oil returning branch pipe with it is hydraulic Oily oil return general pipeline is connected；The hydraulic power unit includes hydraulic oil container, hydraulic oil pump and three position four-way directional control valve, the hydraulic oil pump By hydraulic oil pump motor driven, the Median Function of the three position four-way directional control valve is M type, the suction inlet of the hydraulic oil pump with it is described The oil outlet of hydraulic oil container is connected and the oil outlet of hydraulic oil container is equipped with oil absorption filter, and the outlet of the hydraulic oil pump is logical It crosses check valve to be connected with the P of three position four-way directional control valve mouth, T mouth and the hydraulic oil container of the three position four-way directional control valve Oil return opening is connected, and the A mouth of the three position four-way directional control valve is connected with the hydraulic oil fuel feeding general pipeline, the three position four-way directional control valve B mouth be connected with the hydraulic oil oil return general pipeline.The present invention is provided with lower drive shaft in the right lower quadrant of ring chain, in endless chain The upper left quarter of item is provided with upper drive shaft, and upper drive shaft drives upper layer chain, and lower drive shaft drives lower layer's chain, and two drive shafts are same Step is run with torque, and the driving load than single drive shaft reduces more than half.When avoiding uniaxial driving, main drive shaft should Drive chain undertakes the function of tension chain again, avoids the translational adjustment of large-scale driving mechanism.Eliminate huge tail portion Semicircular track avoids chain from holding tightly in very long semicircular track friction；The load of chain and sprocket wheel is evenly distributed, stress Small, abrasion reduces more than half, and only Tensile load, no Moment, and same specification infuser chain pull are only original to chain The 50% of structure, force-bearing situation obtain thorough improvement, and reliability greatly improves.Handle is first passed through to cut three position four-way directional control valve Shift to middle position, start hydraulic oil pump, the hydraulic oil in hydraulic oil container enters hydraulic oil pump after oil absorption filter filters, at this time by Oil return is directly connected with T mouthfuls in the P mouth of three position four-way directional control valve, the hydraulic oil of hydraulic oil pump output returns to hydraulic oil container and realizes liquid The No Load Start of pressure oil pump motor.When normal work, three position four-way directional control valve is switched to by right working position by handle, hydraulic oil from The A mouth of three position four-way directional control valve enters hydraulic oil fuel feeding general pipeline, enters upper and lower hydraulic-driven simultaneously by hydraulic oil fuel feeding general pipeline and fills It sets, drives upper and lower drive shaft to rotate synchronously, the oil return of upper and lower fluid pressure drive device respectively enters hydraulic oil oil return general pipeline, from liquid Pressure oil oil return general pipeline enters the B mouth of three position four-way directional control valve, then returns to hydraulic oil container from T mouthfuls.It is a small amount of in infuser Start-up and Adjustment After charging, three position four-way directional control valve can be switched into left station by handle, realize rotating backward for upper and lower drive shaft, but Material is discharged from the discharge port of head cabinet as early as possible.The hydraulic oil of hydraulic oil pump output is assigned to two confessions by hydraulic oil fuel feeding general pipeline Oil inlet pipe, then fluid pressure drive device and lower fluid pressure drive device are respectively enterd, then import hydraulic oil oil return by two oil returning branch pipes General pipeline is then return to hydraulic oil container；Because the hydraulic fluid pressure of upper and lower fluid pressure drive device input is equal, upper and lower drive shaft Output torque is theoretically identical, by hydraulic system self-balancing pressure, guarantees two-axis synchronization even running.

As a further improvement of the present invention, the upper drive shaft and the lower drive shaft are uniformly equipped with respectively in axial direction Multiple poking devices, each poking device respectively include surrounding amplexis in the card of the upper drive shaft or lower drive shaft periphery Shell, each periphery got stuck respectively symmetrically are equipped with the driving lever radially stretched out, and the end of each driving lever is separately connected There is the blade perpendicular to driving lever axis.The thickness of the bed of material is generally up to 1 meter, is self-possessed bigger, during pushing advance by scraper plate It is squeezed, in addition more closely knit more the bed of material that moves forward, the surface of the wet dregs of rice is relatively rough persistently by the immersion of solvent, holds very much Easily agglomeration knot arch, when entering tail portion cabinet from upper extracting stage, normally can freely fall under the action of self-weight, once it ties Arch is then easy to produce bridgings, forms cantilevered out stock column, falls in big bulk, and lower layered material bed is made to be difficult to be formed stabilization, with high material Layer, influences subsequent leaching；Poking device is arranged in the present invention in upper drive shaft, and poking device is rotated with upper drive shaft, such as generates Cantilevered out stock column can be forced under dialling by the blade of poking device, and realization continuously is fallen, be conducive to be formed on lower layered material bed it is stable, The contour bed of material.Similarly, poking device is set in lower drive shaft, may be implemented sustainedly and stably to the discharge port of head cabinet Discharging, guarantee subsequent evaporation process stablizes charging.

As a further improvement of the present invention, the scraper plate extends along the breadth direction of infuser, the both ends of the scraper plate It is respectively fixedly connected on the outer plate of the ring chain, the outer plate is hinged on the outside of inner plate, institute by chain pin It states and is respectively installed with chain idler wheel in the middle part of chain pin, the top of scraper plate position corresponding with the chain idler wheel is fixed respectively There is wear-resistant slide block；Be equipped with the upper layer screen below the upper layer of the ring chain, on the upper layer screen embedded with it is described The upper layer sliding rail of chain idler wheel contact；The lower section of lower layer's scraper plate is equipped with lower layer's screen, on lower layer's screen embedded with it is described Lower layer's sliding rail of wear-resistant slide block contact.Upper layer chain is rolled on the sliding rail of upper layer by chain idler wheel, when chain goes to lower layer, Due to scraper plate upper limb downward, chain idler wheel can not be supported on lower layer's sliding rail, and the present invention is fixed with wear-resisting at the top of scraper plate Sliding block is supported on lower layer's sliding rail by wear-resistant slide block, makes to be formed between very little between the top of lower layer's scraper plate and lower layer's screen Gap；The advance frictional force of chain of the present invention is small, not damaged to screen, screen long service life, and operating cost is low；Realize scraper plate Contactless between screen, zero abrasion, avoiding screen, gap becomes larger due to abrasion, and excessive cake embryo powder is made to enter miscella In, harm or adverse effect are generated to leaching system, extend the service life of infuser, the warp after also avoiding screen abrasion It often checks, replacement, leads to operating cost height.

As a further improvement of the present invention, the lower drive shaft is located on the right side of the underface of the upper guiding device, institute Lower tensioning shaft is stated to be located on the left of the underface of the upper drive shaft；The right side of the upper drive shaft is equipped with and the upper layer screen The lower end of the slide carriage that left end is connected to each other, the slide carriage is tilted to the left, between the lower end of the slide carriage and the lower tensioning shaft Equipped with the striker plate being tilted to the right, the lower end of the striker plate be arranged right below docked with lower layer's screen level it is blind Plate.Ring chain is trapezoidal, reduces the cornerite and resistance of guiding device, increases the cornerite of lower tightener sprocket, is tail portion Slide carriage in cabinet provides space, and the wet dregs of rice slide along the inclined-plane of slide carriage, hits in striker plate steering, then after skidding off slide carriage bottom It falls on blind plate；Striker plate not only plays steering-effecting, but also slows down the impact that wet dregs of rice freely falling body generates；In the cabinet of tail portion Lower layered material bed falls the wet dregs of rice using blind plate carrying, improves impact resistance, again through bar shaped after elimination impact energy on blind plate Scraper plate, which drags on lower layer's screen, to be embathed, and collectively forms lower layered material bed by blind plate and lower layer's screen, under avoiding wet dregs of rice impact from entering In the gap of layer screen, material leakage is caused, the cleannes of miscella are influenced.Using the structure and semicircular track of slide carriage and striker plate Tail portion compare, space is greatly saved, is readily transported；Slide carriage and striker plate refuse chain and any friction occur, and can use Common material production, avoids being connected by screw bolts, leads to the escape at bolt hole.It is held tightly with chain in traditional structure Sliding is compared in the semicircular track of tail portion, and the force-bearing situation of upper drive shaft and lower tensioning shaft is good in tail portion cabinet of the present invention, operation Resistance very little.Tail portion is turned to scraper due to not needing scraper plate from top to bottom, and scraper plate of the invention can use light-duty bar shaped Scraper plate, without using heavy big scraper plate, the rough surface of oil plant embryo and the wet dregs of rice, mutual binding force is very big, only needs to use The light-duty bar shaped scraper plate of lower height can just be such that the bed of material times over blade height moves forward.Traditional semicircular track tail Portion pushes material downlink by heavy type scratch board and turns to, and the wet dregs of rice have interrupted immersion and elution during turning to downlink；Of the invention Material relies on Gravitational sliding, contacts in whereabouts Duan Buyu scraper plate, can continue to impregnate during downlink and elute, significantly Improve the production capacity and efficiency of leaching.

As a further improvement of the present invention, the novel solvent spray groove is located at below the middle part roof for draining section, The entrance of the novel solvent spray groove is connected with novel solvent pipe, and section spray groove that drains is located at the left part roof for draining section Lower section, the section oil bucket that drains are located at below the screen for draining section；The lower extracting stage oil bucket is located at the lower extracting stage Screen below, the lower extracting stage spray groove be located at the lower extracting stage roof lower section；The tail portion cabinet oil bucket is located at The top of the bottom of the tail portion cabinet, the slide carriage upper end is equipped with upper self-loopa spray groove, lower layer's object of the tail portion cabinet Material top is equipped with lower self-loopa spray groove, and the more line spray groove is located at the lower section of the upper extracting stage left part roof, the tail The bottom of portion's cabinet oil bucket is connect with the entrance that the tail box body circulation pumps, and the outlet of the tail box body circulation pump leads to respectively Valve is crossed to be connected with the entrance of the upper self-loopa spray groove, lower self-loopa spray groove and more line spray groove；The upper extracting stage Oil bucket is located at below the screen of the upper extracting stage, and the upper extracting stage spray groove is located at below the roof of the upper extracting stage； The more line repairing pipe is connected to the left side wall top of the upper extracting stage oil bucket, the entrance and the tail of the more line repairing pipe The outlet of portion's cabinet circulating pump is connected；The left and right feed zone oil bucket is located at the left and right portion below the feed zone screen, institute The left and right portion that left and right feed zone spray groove is located at below the feed zone roof is stated, the upper extracting stage oil bucket of the rightmost side is logical The aqueduct is crossed to the right feed zone oil bucket overflow.The miscella of the lower extracting stage oil bucket overflow of the leftmost side flows to tail portion cabinet Oil bucket, goes out and send supreme self-loopa spray groove, lower self-loopa spray groove and more line spray groove downward by tail box body circulation pumping Spray, wherein upper self-loopa spray groove sprays the wet dregs of rice on slide carriage, lower self-loopa spray groove is to tail portion cabinet lower layer The wet dregs of rice are sprayed, and the immersion and elution of tail portion are increased compared with traditional semicircular track tail portion, substantially increases leaching Production capacity and efficiency；More line spray groove sprays the left part bed of material of upper extracting stage, and the miscella fallen enters upper extracting stage In oil bucket, conveying of lower layer's miscella to upper layer is realized.Tail portion cabinet oil bucket plays the role of the turnover that miscella is sent to upper layer, It is usually maintained in half dummy status, extracted amount is equal with new molten amount+extraction quantity.If maximum spray and the infiltration of more line spray groove Amount is not able to satisfy the demand of upper layer extraction, then can open corresponding valve by getting over line repairing pipe extracting stage oil bucket directly up Fuel feeding.The higher miscella of oil content is extracted out by upper extracting stage circulating pump and send supreme extracting stage spray groove in upper extracting stage oil bucket Spray, the upper wet dregs of rice of extracting stage higher to oil content are impregnated and are eluted downwards, and the miscella for obtaining higher concentration drops back into In extracting stage oil bucket, circulated sprinkling is extracted out by upper extracting stage circulating pump.Upper extracting stage oil bucket, upper extracting stage circulating pump and upper leaching Section spray groove is equipped with multistage, the upper extracting stage oil bucket overflow of the upper extracting stage oil bucket in left side successively to the right from left to right.

As a further improvement of the present invention, the feed zone, upper extracting stage, lower extracting stage and the roof lower section for draining section Be respectively equipped with the claw device for striking off bed of material top surface, the claw device includes claw ontology, the claw ontology be equipped with to The inclined horizontal lower edge in supplied materials direction is uniformly connected with the rake teeths of multiple insertion bed of materials, the claw sheet on the horizontal lower edge The upper end of body is suspended on claw trunnion axis, and the both ends of the claw trunnion axis are hinged on claw support, the claw support It is fixed on the infuser shell.Claw ontology is suspended on claw trunnion axis, and the horizontal lower edge of claw ontology is by bed of material top Portion strikes off, and the thrust of the bed of material overcomes the self weight of claw ontology that its lower edge is raised up to certain altitude to reach equilibrium state, and rake teeth is inserted Enter in the bed of material and form the multiple tracks groove that is parallel to each other on bed of material surface, is conducive to the flowing of miscella and is uniformly distributed, it is fresh molten Agent or miscella spray permeate downwards on the surface of the bed of material, and when miscella spray flow is slightly larger than infiltration capacity, bed of material surface can shape At liquid level, miscella internal circulating load reaches maximum and technique setting proper states at this time, and the horizontal lower edge of claw ontology can be with Avoid miscella along the channelling of bed of material top surface, it is ensured that the effect of counter-current extraction.

As a further improvement of the present invention, the hydraulic oil pump motor (M1) is driven by frequency converter (VFD), the frequency conversion Device (VFD) is controlled by control loop, and start button (SB1) has been sequentially connected in series between the firewire and zero curve of the control loop, has been stopped Only the delay of button (SB2), the failure breaking-off contact of the frequency converter (VFD), stall alert time-delay relay disconnects normally closed touching The coil of head (KT1-1) and main motor control relay (K1), the both ends of start button (SB1) are parallel with main motor control relay The second normally open contact (K1-2) of the self-keeping contact (K1-1) of device, main motor control relay are connected on the frequency converter (VFD) Enabling signal input terminal；The level signals output end of level position transducer (LT) and the analog signal of the frequency converter (VFD) are defeated Enter end (AI) to be connected, the analog signal output (AO) of the frequency converter (VFD) and first signal of comparator relay (SSR) Source input terminal (AI1) connection；The signal end output end and speed for detecting the speed measurement switch (ZS) of infuser chain forward speed become The signal input part of device (SST) is sent to connect, the second of the signal output end of velocity transducer (SST) and comparator relay (SSR) Signal source input terminal (AI2) connection；The comparison signal failure contact and main motor of the comparator relay (SSR) control relay Third normally open contact (K1-3) and the stall alert time-delay relay (KT1) coil series connection after be connected to control loop Between firewire and zero curve；The high charge level switch (LT-H) and high charge level alarm relay (KT2) of the level position transducer (LT) It is connected between the firewire of control loop and zero curve after coil series connection, the normally open contact (KT2- of high charge level alarm relay (KT2) 1) it is connected between the firewire of control loop and zero curve after connecting with the coil of supplied materials relay (K2) is forbidden；The material position pick-up The low level switch (LT-L) of device (LT) is connected to the fire of control loop after connecting with the coil of low material position alarm relay (KT3) Between line and zero curve, the normally closed interlock (KT3-1) of low material position alarm relay (KT3) is connected on stall alert time-delay relay Delay disconnects between normally closed interlock (KT1-1) and the coil of main motor control relay (K1).Press start button SB1, main electricity Machine control relay K1 coil obtain it is electric, main motor control relay self-keeping contact K1-1 be attracted self-insurance, main motor control after The second normally open contact K1-2 closure of electric appliance makes frequency converter VFD starting driving hydraulic oil pump motor M1 rotation, and hydraulic power unit passes through Fluid power system drive chain is advanced；Frequency converter adjusts hydraulic oil pump electricity according to the level signals that level position transducer LT is detected The revolving speed of machine M1, and driving speed signal is supplied to the first signal source input terminal of comparator relay SSR；Speed measurement switch ZS It detects the practical forward speed of infuser chain, and chain actual speed signal is supplied to by ratio by velocity transducer SST Second signal source input terminal compared with relay SSR；If driving speed signal and chain actual speed signal occur bigger Error, then the comparison signal failure contact closure of comparator relay SSR, obtains the coil of stall alert time-delay relay KT1 electric, The delay of stall alert time-delay relay disconnects normally closed interlock KT1-1 delay and disconnects, and makes the coil of main motor control relay K1 Power loss, main motor control the second normally open contact K1-2 and main electricity of the self-keeping contact K1-1 of relay, main motor control relay The third normally open contact K1-3 of machine control relay is simultaneously switched off, and frequency converter VFD stops working and ring chain is made to halt.When When frequency converter VFD itself is out of order, the failure breaking-off contact disconnection of frequency converter VFD shuts down hydraulic oil pump motor M1.Work as leaching When bed depth in device is excessively high, triggering high charge level switch LT-H closure, the coil of high charge level alarm relay KT2 obtains electric, height The normally open contact KT2-1 of material position alarm relay KT2 is closed, and obtains the coil for forbidding supplied materials relay K2 electric, to charging circuit It issues and stops charging signal.When feeding mechanism breaks down so that the bed depth in infuser is too low, triggers low material position and open LT-L closure is closed, the coil of low material position alarm relay KT3 obtains electric, and the normally closed interlock KT3-1 of low material position alarm relay KT3 prolongs When disconnect, make the coil losing electricity of main motor control relay K1, frequency converter VFD stops working and ring chain is made to halt.

As a further improvement of the present invention, the comparator relay SSR include power module, it is CPU, communication module, defeated Enter module and relay driving module；DC24V is converted into DC 5V operating voltage and is supplied to each module by the power module；CPU The two-way analog signal that the input module transmits is converted into digital signal, calculated result is then compared judgement, such as The error of fruit two paths of signals value is more than permissible value, then so that it is driven the comparison to relay driving module output low level Signal fault contact action；The communication module by program download in CPU or by CPU data and working condition be uploaded to In host computer；The current signal of the 4 ~ 20mA of two-way received is respectively converted into the voltage signal of 0 ~ 5V by the input module, And it send to the two-way input end of analog signal of CPU, while playing the role of signal isolation；The relay driving module receives The low level control signal that CPU is sent is gone forward side by side after row energization amplification, and the comparison signal failure contact is made to generate closed action. Communication module downloads to program in CPU, and the first signal source input terminal AI1 of input module receives the mould of frequency converter VFD output Quasi- signal drives analog signal, and the second signal source input terminal AI2 of input module receives the simulation that velocity transducer SST is sent Signal and the practical forward speed analog signal of chain, input module convert the current signal of the 4 ~ 20mA of two-way received respectively For the voltage signal of 0 ~ 5V, and send to two-way the input end of analog signal P1.1 and P1.2 of CPU；CPU transmits input module Two-way DC0 ~ 5V analog signal is converted to 10 position digital signals, is calculated according to respective range, then by calculated result into Row multilevel iudge, P0.5 output low level is sent to relay driving module if the error of two paths of signals value is more than permissible value, Relay driving module drives comparison signal failure contact closure；Communication module can will be in the data and working condition in CPU It reaches in host computer.

Detailed description of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, attached drawing only provide with reference to Illustrate to use, it is non-to limit the present invention.

Fig. 1 is the main view of loop type extractor of the present invention.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the perspective view of Fig. 1.

Fig. 4 is the material solvent flow graph of loop type extractor of the present invention.

Fig. 5 is the drive system schematic diagram of loop type extractor of the present invention.

Fig. 6 is the drive system perspective view of loop type extractor of the present invention.

Fig. 7 is the hydraulic system pipeline figure of loop type extractor of the present invention.

Fig. 8 is the transmission system perspective view of loop type extractor of the present invention.

Fig. 9 is the enlarged drawing at the position A in Fig. 8.

Figure 10 is the structure chart of loop type extractor tail portion of the present invention cabinet.

Figure 11 is the perspective view of Figure 10.

Figure 12 is the perspective view of upper drive shaft in loop type extractor of the present invention.

Figure 13 is the perspective view of poking device in Figure 12.

Figure 14 is the perspective view that line spray groove is got in loop type extractor of the present invention.

Figure 15 is the perspective view of loop type extractor claw device of the present invention.

Figure 16 is the system diagram of loop type extractor of the present invention.

Figure 17 is the hydraulic schematic diagram of loop type extractor of the present invention.

Figure 18 is the electric operation control circuit figure of loop type extractor of the present invention.

Figure 19 is the schematic diagram of comparator relay in Figure 18.

In figure: 1. buffer bins；1a. feed inlet；2. feed zone；2a. aqueduct；The left feed zone spray groove of 2b.；The right charging of 2c. Section spray groove；The left feed zone oil bucket of 2d.；The right feed zone oil bucket of 2e.；2f. feed zone offgas outlet；Extracting stage on 3.；3a. gets over line Spray groove；The upper extracting stage spray groove of 3b.；The upper extracting stage oil bucket of 3c.；The upper extracting stage offgas outlet of 3d.；4. lower extracting stage；Under 4a. Extracting stage spray groove；Extracting stage oil bucket under 4b.；5. draining section；5a. novel solvent spray groove；5b. drains a section spray groove；5c. is drained Section oil bucket；6. head cabinet；6a. discharge port；The head 6b. cabinet offgas outlet；7. tail portion cabinet；The upper self-loopa spray groove of 7a.； Self-loopa spray groove under 7b.；The tail portion 7c. cabinet oil bucket；7d. slide carriage；7e. striker plate；7f. blind plate；The head 7g. cabinet tail gas goes out Mouthful；8. upper layer screen；The upper layer 8a. sliding rail；9. lower layer's screen；9a. lower layer sliding rail；Drive shaft on 10.；The upper hydraulic-driven dress of 10a. It sets；10b. upper sprocket wheel；11. lower drive shaft；Fluid pressure drive device under 11a.；11b. lower sprocket；Guiding device on 12.；13. lower Mandrel；Tightener sprocket under 13a.；14. hydraulic power unit；14a. hydraulic oil container；14a1. air filter；14a2. liquid level liquid thermometer； 14b. oil absorption filter；14c. manual ball valve；14d. compensator；14e. hydraulic oil pump；M1. hydraulic oil pump motor；14f. is unidirectional Valve；14g. pressure oil strainer；14h. three position four-way directional control valve；15. ring chain；15a. outer plate；15b. inner plate；15c. Chain idler wheel；15d. wear-resistant slide block；16. scraper plate；17. claw device；17a. claw ontology；17b. rake teeth；17c claw is horizontal Axis；17d. claw support；18. poking device；18a. gets stuck；18b. driving lever；18c. driving lever gusset；18d. blade；19. supporting leg； 20. support rod；21. shell rib；B1. a section circulating pump is drained；B2. extracting stage circulating pump is descended；B3. upper extracting stage circulating pump；B4. Tail box body circulation pump；B5. right feed zone circulating pump；B6. left feed zone circulating pump；B7. infuser oil outlet pump；B8. miscella Drawing pump；G1. novel solvent pipe；G2. line repairing pipe is got over；G3. return header；G4. oil drainage main；H1. level-one cyclone hydraulic separators； H2. second level cyclone hydraulic separators；T1. temporary storage tank；ZF. vapo(u)rization system；C1. tail gas condenser.

QM1. breaker；FC1. electrothermal relay；VFD. frequency converter；SB1. start button；SB2. stop button；K1. main electricity Machine controls relay；K2. forbid supplied materials relay；KT1. stall alert time-delay relay；KT2. high charge level alarm relay； KT3. low material position alarm relay；LT. level position transducer；ZS. speed measurement switch；SST. velocity transducer；SSR. comparator relay； PT-H. super oil pressure alarm switch；PT-L. low oil pressure alarm switch；H1. stall alert indicator light；H2. high charge level police instruction Lamp；H3. low material position alarm lamp；H4. hydraulic system fault indicator light；H5. forbid supplied materials indicator light.

Specific embodiment

As shown in Fig. 1 to Figure 16, the extraction process of loop type extractor of the invention include infuser shell and be located at leach Ring chain 15 in device shell, the circumferential direction along ring chain 15 are uniformly equipped with multiple scraper plates 16, and infuser shell is by head Cabinet 6, upper extracting stage 3, lower extracting stage 4, drains section 5 and tail portion cabinet 7 is mutually spliced at feed zone 2, ring chain 15 Upper layer is located in feed zone 2 and upper extracting stage 3, and the lower layer of ring chain 15 is located at lower extracting stage 4 and drains in section 5；Feed zone 2 Right output port pass through flange respectively with the right output port for draining section 5 and be connected with the upper and lower ends of head cabinet 6, upper extracting stage 3 Left port passes through flange with the left port of lower extracting stage 4 respectively and is connected with the upper and lower ends of tail portion cabinet 7, a left side for feed zone 2 Port is connected with the right output port of upper extracting stage 3 by flange, and the right output port of lower extracting stage 4 passes through with the left port for draining section 5 Flange is connected；The right end top of feed zone 2 is connected with buffer bin 1, and the top of buffer bin 1 is equipped with feed inlet 1a, head cabinet 6 Bottom be equipped with discharge port 6a.

Upper extracting stage 3 and feed zone 2 are supported on lower extracting stage 4 by support rod 20 respectively and drain in section 5, lower extracting stage 4, section 5 and tail portion cabinet 7 is drained to support on the ground by supporting leg 19 respectively.

The top of head cabinet 6 is equipped with head cabinet offgas outlet 6b, and the top of feed zone 2 is equipped with feed zone offgas outlet 2f, the top of upper extracting stage 3 are equipped with upper extracting stage offgas outlet 3d, and the top of tail portion cabinet 7 is equipped with head cabinet offgas outlet 7g, each offgas outlet are connect with the entrance of tail gas condenser C1.

After ring chain 15 starts, oil plant embryo enters from the feed inlet 1a at 1 top of buffer bin, drives lower berth in drawing-in device On upper layer material bed, upper layer scraper plate pushes material right-to-left to advance from the upward extracting stage 3 of feed zone 2, oil plant indusium miscella Become the wet dregs of rice after spray, the wet dregs of rice enter tail portion cabinet 7 from the left end of upper extracting stage 3, and material drops down onto lower layered material in tail portion cabinet 7 On bed, lower layer's scraper plate pushes material successively to pass through lower extracting stage 4 to the right from the bottom of tail portion cabinet 7 and drain section 5, finally reaches Head cabinet 6 is discharged from discharge port 6a.During advance, extract liquor constantly sprays material, impregnated and is extracted material, The grease of leaching is fallen into the oil bucket of lower section.Huge infuser is divided into several standalone modules by the present invention, convenient for manufacturing The prepackage in workshop and sub-unit transport, can easily connect integral to erecting bed, greatly reduce in-site installation work Work amount and construction period.

The lower part of head cabinet 6 is equipped with lower drive shaft 11, is equipped with lower sprocket 11b in lower drive shaft 11, head cabinet 6 Top is equipped with upper guiding device 12；The top of tail portion cabinet 7 is equipped with upper drive shaft 10, is equipped with upper sprocket wheel in upper drive shaft 10 10b, the lower part of tail portion cabinet 7 are equipped with lower tensioning shaft 13, are equipped with lower tightener sprocket 13a, ring chain 15 on lower tensioning shaft 13 Successively on lower sprocket 11b, upper guiding device 12, upper sprocket wheel 10b and lower tightener sprocket 13a；Upper guiding device 12 is to slide Rail or upper tightener sprocket.The present invention is provided with lower drive shaft 11 in the right lower quadrant of ring chain 15, in the upper left of ring chain 15 Portion is provided with upper drive shaft 10, and upper drive shaft 10 drives upper layer chain, and lower drive shaft 11 drives lower layer's chain, and two drive shafts are same Step is run with torque, and the driving load than single drive shaft reduces more than half.When avoiding uniaxial driving, main drive shaft should Drive chain undertakes the function of tension chain again, avoids the translational adjustment of large-scale driving mechanism.Eliminate huge tail portion Semicircular track avoids chain from holding tightly in very long semicircular track friction；The load of chain and sprocket wheel is evenly distributed, stress Small, abrasion reduces more than half, and only Tensile load, no Moment, and same specification infuser chain pull are only original to chain The 50% of structure, force-bearing situation obtain thorough improvement, and reliability greatly improves.

Upper drive shaft 10 and lower drive shaft 11 are uniformly equipped with multiple poking devices 18, each poking device 18 respectively in axial direction Respectively include surrounding amplexis in the 18a that gets stuck of 11 periphery of upper drive shaft 10 or lower drive shaft, the periphery for the 18a that respectively gets stuck is respectively symmetrically Equipped with the driving lever 18b radially stretched out, driving lever 18b is equipped with driving lever gusset 18c to improve intensity, the end of each driving lever 18b Portion is connected separately with the blade 18d perpendicular to driving lever axis.

The thickness of the bed of material is generally up to 1 meter, is self-possessed bigger, is squeezed during being pushed and being advanced by scraper plate 16, in addition More closely knit more the bed of material that moves forward persistently by the immersion of solvent, the surface of the wet dregs of rice is relatively rough, it is easy to agglomeration knot arch, It when entering tail portion cabinet 7 from upper extracting stage 3, normally can freely fall under the action of self-weight, be easy to produce if knot arch occurs It is raw to put up a bridge, cantilevered out stock column is formed, is fallen in big bulk, so that lower layered material bed is difficult to be formed and is stablized, with the high bed of material, influences subsequent It leaches；Poking device 18 is arranged in the present invention in upper drive shaft 10, and poking device 18 is rotated with upper drive shaft 10, such as generated cantilevered out Stock column, can be forced under dialling by the blade 18d of poking device 18, realization continuously is fallen, be conducive to be formed on lower layered material bed it is stable, The contour bed of material.Similarly, poking device 18 is set in lower drive shaft 11, may be implemented sustainedly and stably to head cabinet 6 Discharge port 6a discharging, guarantee subsequent evaporation process stablizes charging.

As shown in Figure 8, Figure 9, scraper plate 16 extends along the breadth direction of infuser, and the both ends of scraper plate 16 are respectively fixedly connected with On the outer plate 15a of ring chain 15, outer plate 15a is hinged on the outside of inner plate 15b, the middle part difference of chain pin by chain pin It is set with chain idler wheel 15c, the top of scraper plate 16 position corresponding with chain idler wheel 15c is respectively fixed with wear-resistant slide block 15d；Ring It is equipped with upper layer screen 8 below the upper layer of shape chain 15, is embedded with the upper layer sliding rail contacted with chain idler wheel 15c on upper layer screen 8 8a；The lower section of lower layer's scraper plate is equipped with lower layer's screen 9, is embedded with the lower layer's sliding rail contacted with wear-resistant slide block 15d on lower layer's screen 9 9a。

Upper layer chain is rolled on the sliding rail 8a of upper layer by chain idler wheel 15c, when chain goes to lower layer, due to scraper plate Downward, chain idler wheel 15c can not be supported on lower layer sliding rail 9a upper limb, and the present invention is fixed with wear-resistant slide block at the top of scraper plate 15d is supported on lower layer sliding rail 9a by wear-resistant slide block 15d, makes to form very little between the top of lower layer's scraper plate and lower layer's screen 9 Gap；The advance frictional force of chain of the present invention is small, not damaged to screen, screen long service life, and operating cost is low；It realizes Contactless between scraper plate and screen, zero abrasion, avoiding screen, gap becomes larger due to abrasion, and excessive cake embryo powder is made to enter mixing In oil, harm or adverse effect are generated to leaching system, extend the service life of infuser, after also avoiding screen abrasion Running check, replacement lead to operating cost height.

Lower drive shaft 11 is located on the right side of the underface of upper guiding device 12, lower tensioning shaft 13 be located at upper drive shaft 10 just under Side left side；The right side of upper drive shaft 10 is equipped with the slide carriage 7d being connected to each other with the left end of upper layer screen 8, and the lower end of slide carriage 7d is to the left Inclination is equipped with the striker plate 7e being tilted to the right between the lower end of slide carriage 7d and lower tensioning shaft 13, the lower end of striker plate 7e is just Lower section is equipped with and the horizontal blind plate 7f docked of lower layer screen 9.

Ring chain 15 is trapezoidal, reduces the cornerite and resistance of guiding device 12, increases lower tightener sprocket 13a's Cornerite provides space for the slide carriage 7d in tail portion cabinet 7, and the wet dregs of rice slide along the inclined-plane of slide carriage 7d, after skidding off the bottom slide carriage 7d It hits and is turned in striker plate 7e, then fallen on blind plate 7f；Striker plate 7e not only plays steering-effecting, but also slows down the wet dregs of rice and freely fall The impact that body generates；Lower layered material bed in tail portion cabinet 7 falls the wet dregs of rice using blind plate 7f carrying, and the lower section of blind plate 7f increases support Part improves impact resistance, drags on lower layer's screen 9 and soaks through bar shaped scraper plate again after elimination impact energy on blind plate 7f It washes, lower layered material bed is collectively formed by blind plate and lower layer's screen, avoid wet dregs of rice impact from entering in the gap of lower layer's screen 9, cause to leak Material, influences the cleannes of miscella.

Using slide carriage 7d with the structure of striker plate 7e compared with the tail portion of semicircular track, space is greatly saved, is convenient for Transport；Slide carriage 7d and striker plate 7e refuses chain and any friction occurs, and can be made, be avoided using bolt of common material Connection, leads to the escape at bolt hole.

It is upper in tail portion cabinet 7 of the present invention to drive compared with chain in traditional structure is held tightly and slided in the semicircular track of tail portion The force-bearing situation of moving axis 10 and lower tensioning shaft 13 is good, running resistance very little.Tail portion is turned from top to bottom due to not needing scraper plate To scraper, scraper plate of the invention can use light-duty bar shaped scraper plate, without using heavy big scraper plate, the surface of oil plant embryo and the wet dregs of rice Coarse, mutual binding force is very big, only need to can just be made using the light-duty bar shaped scraper plate of lower height times over scraper plate height The bed of material of degree moves forward.

Material of the invention rely on Gravitational sliding, whereabouts Duan Buyu scraper plate contact, can continue during downlink into Row impregnates and elution, substantially increases the production capacity and efficiency of leaching.

It drains and is equipped with novel solvent spray groove 5a, the entrance and novel solvent of novel solvent spray groove 5a below the middle part roof of section 5 Pipe G1 is connected, and the left part roof lower section for draining section 5, which is equipped with, drains a section spray groove 5b, and the screen lower section for draining section 5, which is equipped with, drains section Oil bucket 5c, the bottom for draining section oil bucket 5c are connected with a section entrance of circulating pump B1 is drained, and drain a section outlet and drip of circulating pump B1 The entrance of dry section spray groove 5b is connected.

It is successively arranged multiple lower extracting stage oil bucket 4b below the screen of lower extracting stage 4, is equipped with below the roof of lower extracting stage 4 The lower extracting stage spray groove 4a of multistage, the bottom of lower extracting stage oil bucket 4b are connected with the entrance of lower extracting stage circulating pump B2 respectively, respectively The entrance for exporting lower extracting stage spray groove 4a corresponding to top respectively of lower extracting stage circulating pump B2 is connected.

The top that the bottom of tail portion cabinet 7 is equipped with the upper end tail portion cabinet oil bucket 7c, slide carriage 7d is equipped with upper self-loopa spray groove Lower layer's material top of 7a, tail portion cabinet 7 are equipped with lower self-loopa spray groove 7b, and the lower section of upper 3 left part roof of extracting stage is equipped with more The bottom of line spray groove 3a, tail portion cabinet oil bucket 7c are connect with the entrance of tail box body circulation pump B4, and tail box body circulation pumps B4 Outlet respectively by the entrance phase of valve and upper self-loopa spray groove 7a, lower self-loopa spray groove 7b and more line spray groove 3a Even.

It is successively arranged multiple upper extracting stage oil bucket 3c below the screen of upper extracting stage 3, is equipped with below the roof of upper extracting stage 3 The bottom of extracting stage spray groove 3b in multistage, each upper extracting stage oil bucket 3c are connected with the entrance of upper extracting stage circulating pump B3 respectively, The entrance for exporting upper extracting stage spray groove 3b corresponding to top respectively of each upper extracting stage circulating pump B3 is connected；Upper extracting stage oil bucket The left side wall top of 3c is connected with more line repairing pipe G2, more the outlet phase of the entrance of line repairing pipe G2 and tail box body circulation pump B4 Even.

The left side of section oil bucket 5c is drained to the lower extracting stage oil bucket 4b overflow of the rightmost side, lower extracting stage oil bucket 4b right-to-left Overflow step by step, and the lower extracting stage oil bucket 4b rearwardly cabinet oil bucket 7c overflow of the leftmost side；Upper extracting stage oil bucket 3c is from left to right Overflow step by step.

At the middle part for draining section 5, novel solvent enters novel solvent spray groove 5a by novel solvent pipe G1 and sprays downwards, to oil-containing Measure the minimum wet dregs of rice of section that drain and carry out last immersion and elution, obtain oil content and be lower than 0.8%(butt) grouts below, so Grouts, which continue to be moved right into no spray section, afterwards is drained, and is drained grouts and is entered head cabinet 6 to the right, arranges from discharge port 6a Out.

Novel solvent becomes the extremely low miscella of concentration after impregnating elution to the wet dregs of rice, falls into and drains in section oil bucket 5c, is drained Section circulating pump B1 extract and is sent to draining section spray groove 5b and sprays to the left part for draining section 5, secondary to oil content low to drain The wet dregs of rice of section are impregnated and are eluted, and the miscella for obtaining low concentration, which drops back into, to be drained in section oil bucket 5c, and a section circulating pump B1 is drained Extract circulated sprinkling out.

The miscella for draining section oil bucket 5c overflow flows to lower extracting stage oil bucket 4b, is extracted out and is sent by lower extracting stage circulating pump B2 It is sprayed downwards to lower extracting stage spray groove 4a, the lower extracting stage wet dregs of rice slightly higher to oil content are impregnated and eluted, and are obtained slightly higher The miscella of concentration drops back into lower extracting stage oil bucket 4b, extracts circulated sprinkling out by lower extracting stage circulating pump B2.Lower extracting stage oil bucket 4b, lower extracting stage circulating pump B2 and lower extracting stage spray groove 4a right-to-left are equipped with multistage, the lower extracting stage oil bucket 4b on right side according to Secondary lower extracting stage oil bucket 4b overflow to the left.

The miscella of the lower extracting stage oil bucket 4b overflow of the leftmost side flows to tail portion cabinet oil bucket 7c, is pumped by tail box body circulation B4 extracts and send supreme self-loopa spray groove 7a, lower self-loopa spray groove 7b out and more line spray groove 3a is sprayed downwards, wherein above certainly Circulated sprinkling slot 7a sprays the wet dregs of rice on slide carriage 7d, lower self-loopa spray groove 7b to the wet dregs of rice of 7 lower layer of tail portion cabinet into Row spray, the immersion and elution of tail portion are increased compared with traditional semicircular track tail portion, substantially increases the production capacity of leaching And efficiency；More line spray groove 3a sprays the left part bed of material of upper extracting stage 3, and the miscella fallen enters upper extracting stage oil bucket In 3c, conveying of lower layer's miscella to upper layer is realized.Tail portion cabinet oil bucket 7c plays the role of the turnover that miscella is sent to upper layer, It is usually maintained in half dummy status, extracted amount is equal with new molten amount+extraction quantity.If the maximum spray and infiltration of more line spray groove 3a Penetration is not able to satisfy the demand of upper layer extraction, then can open corresponding valve by getting over line repairing pipe G2 extracting stage directly up Oil bucket 3c fuel feeding.

The higher miscella of oil content is extracted out by upper extracting stage circulating pump B3 and send supreme leaching in upper extracting stage oil bucket 3c Section spray groove 3b is sprayed downwards, and the upper wet dregs of rice of extracting stage higher to oil content are impregnated and eluted, and obtains the mixed of higher concentration It closes oil to drop back into extracting stage oil bucket 3c, circulated sprinkling is extracted out by upper extracting stage circulating pump B3.Upper extracting stage oil bucket 3c, upper leaching Section circulating pump B3 and upper extracting stage spray groove 3b is equipped with multistage from left to right, and the upper extracting stage oil bucket 3c in left side is successively to the right Upper extracting stage oil bucket 3c overflow.

The present invention realizes the reverse flow of material and solvent, and the minimum wet dregs of rice of most fresh solvent soaking oil content are dense It spends slightly lower miscella and impregnates the slightly higher wet dregs of rice of oil content, highly concentrated miscella impregnates the higher wet dregs of rice of oil content, protects always Extract liquor and the biggish concentration difference of the wet dregs of rice are held, guarantees effect of extracting.

It is equipped with left and right feed zone oil bucket 2e below the screen of feed zone 2, is equipped with left and right charging below the roof of feed zone 2 The upper extracting stage oil bucket 3c of section spray groove 2c, the rightmost side pass through aqueduct 2a feed zone oil bucket 2e overflow to the right, right feed zone oil bucket 2e feed zone oil bucket 2d overflow to the left；The bottom of right feed zone oil bucket 2e is connected with the entrance of right feed zone circulating pump B5, it is right into The outlet of material section circulating pump B5 is connected with the entrance of left feed zone spray groove 2b；The bottom of left feed zone oil bucket 2d and left feed zone The entrance of circulating pump B6 is connected, and the outlet of left feed zone circulating pump B6 is connected with the entrance of right feed zone spray groove 2c.

The high concentration miscella of extracting stage oil bucket 3c overflow is entered in right feed zone oil bucket 2e by aqueduct 2a on the rightmost side, It is extracted out and is sent to left feed zone spray groove 2b by right feed zone circulating pump B5 and spray downwards, the wet dregs of rice of 2 left part of feed zone are carried out It impregnates and elution, the miscella for obtaining very high concentration drops back into left feed zone oil bucket 2d, then extracted out by left feed zone circulating pump B6 And give to right feed zone spray groove 2c and spray downwards, the oil plant embryo that 2 right part of feed zone has just enter into is impregnated and eluted, is obtained The miscella of very high concentration drops back into right feed zone oil bucket 2e；Overflow enters a left side to right feed zone oil bucket 2e extra miscella to the left In feed zone oil bucket 2d.

After the oil plant embryo Initial Soak being had just enter into due to feed zone right part and elution, fall into mixed in right feed zone oil bucket 2e It closes in oil containing a large amount of dregs of rice end, pipeline, pump and equipment blocking is easily led to after sedimentation, is sent to by right feed zone circulating pump B5 extraction Left feed zone spray groove 2b spray can be contained after the filtering of the wet dregs of rice bed of material of feed zone left part from left feed zone oil bucket 2d Miscellaneous less concentrated blend is conducive to later separation and evaporation.The highest miscella of concentration carries out the highest oil plant embryo of oil content Extraction, can keep good effect of extracting.

The top overflow port of left feed zone oil bucket 2d is connected by overflow pipe with the entrance of infuser oil outlet pump B7, is leached The outlet of device oil outlet pump B7 is connect with the entrance of level-one cyclone hydraulic separators H1, the outlet of level-one cyclone hydraulic separators H1 and second level spinning liquid The entrance of separator H2 connects, the top entry connection of the outlet temporary storage tank T1 of second level cyclone hydraulic separators H2, under temporary storage tank T1 Portion's oil outlet is connect with the entrance of miscella drawing pump B8, and the outlet of miscella drawing pump B8 and the entrance of vapo(u)rization system ZF connect It connects；The bottom evacuation port of level-one cyclone hydraulic separators H1, second level cyclone hydraulic separators H2 and temporary storage tank T1 connect with return header G3 respectively It connects, the overflow port of temporary storage tank T1 is also connect with return header G3, the outlet of return header G3 and entering for right feed zone spray groove 2c Mouth is connected.

It is leached device oil outlet pump B7 extraction from the concentrated blend of left feed zone oil bucket 2d top overflow, into level-one spinning liquid point After removing thick impurity from device H1, enters back into second level cyclone hydraulic separators H2 and remove thin impurity, then clean concentrated blend enters temporary Tank T1 is deposited, then is mixed oil drawing pump B8 extraction from temporary storage tank T1 and enters subsequent evaporization process.Level-one cyclone hydraulic separators H1, two Grade cyclone hydraulic separators H2 and the miscella containing impurity of the bottom temporary storage tank T1 discharge return to right feed zone by return header G3 Spray groove 2c sprays the oil plant embryo having just enter into, and realizes the classification cycle of concentrated blend and all recycles.

Drain a section circulating pump B1, lower extracting stage circulating pump B2, upper extracting stage circulating pump B3, tail box body circulation pump B4, the right side The entrance of feed zone circulating pump B5, left feed zone circulating pump B6 and infuser oil outlet pump B7 are connected with oil drainage main G4 respectively.

It feed zone 2, upper extracting stage 3, lower extracting stage 4 and drains the roof of section 5 and is respectively arranged below with and strikes off bed of material top surface Claw device 17, claw device 17 includes claw ontology 17a, claw ontology 17a be equipped with to supplied materials direction it is inclined it is horizontal under Edge, the rake teeth 17b of multiple insertion bed of materials are uniformly connected on horizontal lower edge, and the upper end of claw ontology 17a is suspended on claw level On axis 17c, the both ends of claw trunnion axis 17c are hinged on claw support 17d, and claw support 17d is fixed on infuser shell. Claw ontology 17a is suspended on claw trunnion axis 17c, and the horizontal lower edge of claw ontology 17a will strike off at the top of the bed of material, and the bed of material pushes away Power overcomes the self weight of claw ontology 17a that its lower edge is raised up to certain altitude to reach equilibrium state, and rake teeth 17b is inserted into the bed of material Bed of material surface forms the multiple tracks groove that is parallel to each other, is conducive to the flowing of miscella and is uniformly distributed, fresh solvent or miscella Spray permeates downwards on the surface of the bed of material, and when miscella spray flow is slightly larger than infiltration capacity, bed of material surface will form liquid level, at this time Miscella internal circulating load reaches maximum and technique setting proper states, and the horizontal lower edge of claw ontology 17a can be to avoid mixing Oil is along the channelling of bed of material top surface, it is ensured that the effect of counter-current extraction.

The outer surface of infuser shell is evenly arranged with the more shell ribs 21 outwardly protruded, and each shell rib 21 will leaching The outer surface of device shell is separated into multiple square spaces out, is embedded with thermal insulation material, shell rib 21 respectively in each square space Not only the intensity of shell had been improved, but also had been fixed convenient for the installation of thermal insulation material, the fixation of appearance covering is also convenient for.In the middle part of housing top surface Shell rib height be higher than two sides, the low state in intermediate high two sides is formed after covering, so that housing top surface will not ponding.

As shown in Fig. 7 and Figure 17, upper drive shaft 10 is driven by upper fluid pressure drive device 10a, and lower drive shaft 11 is hydraulic under Driving device 11a driving, upper fluid pressure drive device 10a and lower fluid pressure drive device 11a are controlled by the same hydraulic power unit 14, on The oil inlet of fluid pressure drive device 10a and lower fluid pressure drive device 11a is respectively by for oil inlet pipe and hydraulic oil fuel feeding general pipeline phase Even, the oil return opening of upper fluid pressure drive device 10a and lower fluid pressure drive device 11a passes through oil returning branch pipe respectively and hydraulic oil oil return is total Pipe is connected.

Hydraulic power unit 14 includes hydraulic oil container 14a, hydraulic oil pump and three position four-way directional control valve 14h, and hydraulic oil pump is by hydraulic Oil pump electrical machinery driving, the Median Function of three position four-way directional control valve 14h are M type, the suction inlet of hydraulic oil pump and going out for hydraulic oil container 14a Hydraulic fluid port is connected and the oil outlet of hydraulic oil container 14a is equipped with oil absorption filter, the outlet of hydraulic oil pump by check valve 14f with The P mouth of three position four-way directional control valve 14h is connected, and the T mouth of three position four-way directional control valve is connected with the oil return opening of hydraulic oil container 14a, and three The A mouth of four-way reversing valve is connected with hydraulic oil fuel feeding general pipeline, and the B mouth of three position four-way directional control valve is connected with hydraulic oil oil return general pipeline.

Manual ball valve 14c and compensator 14d is equipped between the suction inlet of hydraulic oil pump and the oil outlet of hydraulic oil container 14a；It is single To between the P of valve 14f and three position four-way directional control valve 14h mouth be equipped with pressure oil strainer 14g.

The top of hydraulic oil container 14a is communicated by air filter 14a1 with atmosphere, is equipped on hydraulic oil container 14a side wall Liquid level liquid thermometer 14a2.

It first passes through handle and three position four-way directional control valve 14h is switched into middle position, start hydraulic oil pump, it is hydraulic in hydraulic oil container Oil enters hydraulic oil pump after oil absorption filter 14b filtering, is directly connected due to the P mouth of three position four-way directional control valve with T mouthfuls at this time Oil return, the hydraulic oil of hydraulic oil pump output return to the No Load Start that hydraulic oil container realizes hydraulic oil pump motor.

When normal work, three position four-way directional control valve 14h is switched to by right working position by handle, hydraulic oil is changed from 3-position 4-way Enter hydraulic oil fuel feeding general pipeline to the A mouth of valve, upper and lower fluid pressure drive device 11a, driving are entered by hydraulic oil fuel feeding general pipeline simultaneously Upper drive shaft 10, lower drive shaft 11 rotate synchronously, upper fluid pressure drive device 10a, lower fluid pressure drive device 11a oil return respectively into Enter hydraulic oil oil return general pipeline, the B mouth of three position four-way directional control valve is entered from hydraulic oil oil return general pipeline, then return to hydraulic oil container from T mouthfuls.

After infuser Start-up and Adjustment is fed on a small quantity, three position four-way directional control valve 14h can be switched into left station by handle, Drive shaft 10 in realization, lower drive shaft 11 rotate backward, but material is discharged from the discharge port of head cabinet as early as possible.

As shown in figure 18, hydraulic oil pump motor M1 is controlled by frequency converter VFD, and circuit breaker Q M1 and heat are in series in major loop Relay FC1, frequency converter VFD are controlled by control loop.Control loop uses 24V direct current, between the positive and negative anodes of control loop It is sequentially connected in series start button SB1, stop button SB2, the failure breaking-off contact of frequency converter VFD, stall alert time-delay relay Delay disconnect normally closed interlock KT1-1 and main motor control relay K1 coil, the both ends of start button SB1 are parallel with main electricity Machine controls the self-keeping contact K1-1 of relay, and the second normally open contact K1-2 of main motor control relay is connected on frequency converter VFD Enabling signal input terminal.

The level signals output end of level position transducer LT is connected with the input end of analog signal AI of frequency converter VFD, frequency conversion The first signal source input terminal AI1 of the analog signal output AO and comparator relay SSR of device VFD are connect.Detect infuser chain The signal end output end of the speed measurement switch ZS of forward speed is connect with the signal input part of velocity transducer SST, speed transmitting The signal output end of device SST is connect with the second signal source input terminal AI2 of comparator relay SSR；The comparison of comparator relay SSR The coil of the third normally open contact K1-3 and stall alert time-delay relay KT1 of signal fault contact and main motor control relay It is connected to after series connection between the positive and negative anodes of control loop.The coil both ends of stall alert time-delay relay KT1 are parallel with stall report Alert indicator light H1.

Start button SB1 is pressed, the coil of main motor control relay K1 obtains electric, the self-insurance touching of main motor control relay Head K1-1 is attracted self-insurance, and the second normally open contact K1-2 closure of main motor control relay keeps frequency converter VFD starting driving hydraulic Oil pump electrical machinery M1 rotation, hydraulic power unit are advanced by fluid power system drive chain.

Frequency converter adjusts the revolving speed of hydraulic oil pump motor M1 according to the level signals that level position transducer LT is detected, and will Driving speed signal is supplied to the first signal source input terminal of comparator relay SSR.Speed measurement switch ZS detects infuser chain Practical forward speed, and chain actual speed signal is supplied to the second of comparator relay SSR by velocity transducer SST Signal source input terminal；If there is bigger error, comparator relay in driving speed signal and chain actual speed signal The comparison signal failure contact closure of SSR, stall alert indicator light H1 are lighted, while the line of stall alert time-delay relay KT1 Enclose electric, the delay of stall alert time-delay relay disconnects normally closed interlock KT1-1 delay and disconnects, and main motor is made to control relay K1 Coil losing electricity, main motor control relay self-keeping contact K1-1, main motor control relay the second normally open contact K1-2 It is simultaneously switched off with the third normally open contact K1-3 of main motor control relay, frequency converter VFD stops working and stops ring chain Advance.

When frequency converter VFD itself is out of order, the failure breaking-off contact disconnection of frequency converter VFD stops hydraulic oil pump motor M1 Machine.

The high charge level switch LT-H of level position transducer LT is connected to control after connecting with the coil of high charge level alarm relay KT2 Between the positive and negative anodes in circuit processed, the coil both ends of high charge level alarm relay KT2 are parallel with high charge level alarm lamp H2, height material The normally open contact KT2-1 of position alarm relay KT2 is connected to control loop after connecting with the coil of supplied materials relay K2 is forbidden Between positive and negative anodes.Forbid the coil both ends of supplied materials relay K2 to be parallel with and forbids supplied materials indicator light H5.When the bed of material in infuser When excessive height, triggering high charge level switch LT-H closure, high charge level alarm lamp H2 is lighted, while high charge level alarm relay The coil of KT2 obtains electric, and the normally open contact KT2-1 of high charge level alarm relay KT2 closure makes the coil for forbidding supplied materials relay K2 It is electric, forbid supplied materials indicator light H5 to light, to charging circuit issue stop charging signal.

The low level switch LT-L of level position transducer LT is connected to control after connecting with the coil of low material position alarm relay KT3 Between the positive and negative anodes in circuit processed, the coil both ends of low material position alarm relay KT3 are parallel with low material position alarm lamp H3.Low material The delay that the normally closed interlock KT3-1 of position alarm relay KT3 is connected on stall alert time-delay relay disconnects normally closed interlock KT1-1 Between the coil of main motor control relay K1.When feeding mechanism breaks down so that the bed depth in infuser is too low When, low level switch LT-L closure is triggered, low material position alarm lamp H3 is lighted, while the line of low material position alarm relay KT3 Enclose electric, the normally closed interlock KT3-1 of low material position alarm relay KT3, which is delayed, to be disconnected, and the coil of main motor control relay K1 is made Power loss, frequency converter VFD stop working and ring chain are made to halt.

Super oil pressure alarm switch PT-H and low oil pressure alarm switch PT-L, super oil pressure report are installed on hydraulic oil fuel feeding general pipeline Alert switch PT-H is connected between the positive and negative anodes of control loop after connecting with hydraulic system fault indicator light H4, and low oil pressure alarm is opened It closes after PT-L connects with the 4th normally open contact K1-4 of main motor control relay and is in parallel with super oil pressure alarm switch PT-H.Liquid When superpressure occurs for pressure oil fuel feeding general pipeline, super oil pressure alarm switch PT-H closure lights hydraulic system fault indicator light H4；In master 4th normally open contact K1-4 of motor control relay be in attracting state, that is, hydraulic oil pump motor M1 it is in running order when, such as When the hypotony of fruit hydraulic oil fuel feeding general pipeline, low oil pressure alarm switch PT-L closure also makes hydraulic system fault indicator light H4 bright It rises.

As shown in figure 19, comparator relay SSR includes that power module, CPU, communication module, input module and relay drive Dynamic model block；DC24V is converted into DC 5V operating voltage and is supplied to each module by power module；The two-way that CPU transmits input module Analog signal is converted to digital signal, and calculated result is then compared judgement, if the error of two paths of signals value is more than to permit Perhaps it is worth, then so that it is driven comparison signal failure contact action to relay driving module output low level；Communication module is by program Download in CPU or by CPU data and working condition be uploaded in host computer；Input module by the two-way 4 received ~ The current signal of 20mA is respectively converted into the voltage signal of 0 ~ 5V, and send to the two-way input end of analog signal of CPU, plays simultaneously The effect of signal isolation；The low level control signal that relay driving module reception CPU is sent is gone forward side by side after row energization amplification, is made Comparison signal failure contact generates closed action.

Communication module downloads to program in CPU, and the first signal source input terminal AI1 of input module receives frequency converter VFD The analog signal of output drives analog signal, and the second signal source input terminal AI2 of input module receives velocity transducer SST and send The practical forward speed analog signal of analog signal and chain come, input module is by the current signal of the 4 ~ 20mA of two-way received It is respectively converted into the voltage signal of 0 ~ 5V, and is sent to two-way the input end of analog signal P1.1 and P1.2 of CPU；CPU will input mould Two-way DC0 ~ 5V analog signal that block transmits is converted to 10 position digital signals, is calculated according to respective range, then will meter It calculates result and is compared judgement, P0.5 output low level, which is sent to relay, if the error of two paths of signals value is more than permissible value drives Dynamic model block, relay driving module drive comparison signal failure contact closure；Communication module can be by the data and work in CPU State is uploaded in host computer.

Power module uses LM7805 regulator block, and CPU uses STC15F2K60S2 single-chip microcontroller, and communication module uses MAX485 Chip, input module use WS1521 signal isolator.Velocity transducer SST can use KFU8-FSSP-1 type, and brand is extraordinarily Good fortune P+F.

The extraction process of loop type extractor of the present invention, in turn includes the following steps:

(1) oil plant embryo enters the right part of feed zone 2 from the feed inlet 1a at 1 top of buffer bin and advances to the left, right feed zone oil Bucket 2e in concentrated blend sent by right feed zone circulating pump B5 to left feed zone spray groove 2b spray downwards after drop down onto left feed zone In oil bucket 2d, the miscella in left feed zone oil bucket 2d, which is sent by left feed zone circulating pump B6 to right feed zone spray groove 2c, to be sprayed downwards It is dropped back into after leaching in right feed zone oil bucket 2e, right feed zone oil bucket 2e feed zone oil bucket 2d overflow to the left；

(2) the wet dregs of rice enter upper extracting stage 3 and continue to be moved to the left, and the miscella in upper extracting stage oil bucket 3c is followed by upper extracting stage Ring pump B3 is dropped back into extracting stage oil bucket 3c after sending supreme extracting stage spray groove 3b to spray downwards, and upper extracting stage oil bucket 3c passes through Aqueduct 2a feed zone oil bucket 2e overflow to the right；

(3) the wet dregs of rice enter tail portion cabinet 7 from the left end of upper extracting stage 3, are fallen by means of free gravity or by poking device 18 Force dial under, along slide carriage 7d slide to lower layered material bed after move right；Miscella in the cabinet oil bucket 7c of tail portion is by tail box Body circulation pump B4 is promoted and is dropped back into tail portion cabinet oil bucket 7c, tail portion cabinet after spraying on slide carriage 7d and tail portion cabinet lower layer material bed Oil bucket 7c in miscella also by more line repairing pipe G2 enter upper extracting stage oil bucket 3c and by line spray groove 3a spray exist On the left part bed of material of upper extracting stage 3；

(4) the wet dregs of rice enter to the right lower extracting stage 4 from tail portion cabinet 7, and the miscella in lower extracting stage oil bucket 4b is by lower extracting stage Circulating pump B2 is sent to lower extracting stage spray groove 4a spray downwards after drop back into lower extracting stage oil bucket 4b, and lower extracting stage oil bucket 4b to Tail portion cabinet oil bucket 7c overflow；

(5) the wet dregs of rice enter to the right from lower extracting stage 4 drains section 5, drains dilute miscella in section oil bucket 5c and is drained section circulation Pump B1, which is sent to draining to drop back into after a section spray groove 5b sprays the left part for draining section 5, drains section oil bucket 5c, drains section oil bucket 5c Downward extracting stage oil bucket 4b overflow；Novel solvent drops back into drip after spraying by novel solvent spray groove 5a to the middle part for draining section 5 Dry section oil bucket 5c, then the wet dregs of rice, which continue to enter to the right, drains draining without spray section for 5 right part of section；

(6) the grouts after draining continue to enter head cabinet 6 to the right, and are discharged from the discharge port 6a of 6 lower part of head cabinet.

Concentrated blend from step (1) in left feed zone oil bucket 2d top overflow outflow, by infuser oil outlet pump B7 be sent into one Thick impurity is removed in grade cyclone hydraulic separators H1, second level cyclone hydraulic separators H2 is entered back into and removes thin impurity, then clean dense mixing Oil enters temporary storage tank T1, then extracts out from the mixed oil drawing pump B8 in the lower part of temporary storage tank T1 and enter vapo(u)rization system ZF；Described one Grade cyclone hydraulic separators H1, second level cyclone hydraulic separators H2 and the miscella of the bottom temporary storage tank T1 discharge return to the right side by return header G3 Feed zone spray groove sprays the oil plant embryo having just enter into.

Step (2) in upper extracting stage oil bucket 3c and upper extracting stage spray groove 3b be respectively equipped with multistage, every grade of upper extracting stage oil bucket It is extracted out and is sent to the upper extracting stage spray groove 3b of this grade by accordingly upper extracting stage circulating pump B3, the upper extracting stage oil bucket in left side is successively The upper extracting stage oil bucket of upper extracting stage oil bucket overflow to the right, the rightmost side passes through aqueduct feed zone oil bucket 2e overflow to the right；Step Suddenly (4) in lower extracting stage oil bucket 4b and lower extracting stage spray groove 4a be respectively equipped with multistage, every grade of lower extracting stage oil bucket is by corresponding lower leaching Section circulating pump B2 is extracted out and is sent to the lower extracting stage spray groove 4a of this grade out, the lower extracting stage oil bucket on right side successively to the left under Extracting stage oil bucket overflow, the lower extracting stage oil bucket rearwardly cabinet oil bucket 7c overflow of the leftmost side.

The foregoing is merely the preferable possible embodiments of the present invention, non-therefore limitation patent protection model of the invention It encloses.In addition to the implementation, the present invention can also have other embodiments.All skills formed using equivalent substitution or equivalent transformation Art scheme, is all fallen within the protection domain of application claims.Technical characteristic of the present invention without description can be by or using now There is technology realization, details are not described herein.

Claims (12)

1. a kind of extraction process of loop type extractor, which is characterized in that in turn include the following steps: (1) oil plant embryo is from buffer bin top The feed inlet in portion enters the right part of feed zone and advances to the left along upper layer screen, the concentrated blend in right feed zone oil bucket by the right side into Material section circulation, which is pumped to after left feed zone spray groove sprays downwards, to be dropped down onto left feed zone oil bucket, the mixing in left feed zone oil bucket Oil is pumped to after right feed zone spray groove sprays downwards by left feed zone circulation and drops back into the right feed zone oil bucket, right feed zone The feed zone oil bucket overflow to the left of oil bucket；(2) the wet dregs of rice enter upper extracting stage and continue to be moved to the left, the miscella in upper extracting stage oil bucket It is pumped after supreme extracting stage spray groove sprays downwards and is dropped back into upper extracting stage oil bucket by upper extracting stage circulation, and upper extracting stage oil bucket Pass through aqueduct feed zone oil bucket overflow to the right；(3) the wet dregs of rice enter tail portion cabinet from the left end of upper extracting stage, freely slide along slide carriage It moves right after on to lower layered material bed；Miscella in the cabinet oil bucket of tail portion is pumped by tail box body circulation to be promoted and is sprayed in slide carriage Expect to drop back into tail portion cabinet oil bucket after on bed with tail portion cabinet lower layer, the miscella in the cabinet oil bucket of tail portion is also by getting over line repairing pipe Into upper extracting stage oil bucket and by getting over line spray groove spray on the left part bed of material of upper extracting stage；The wet dregs of rice from tail portion cabinet to Right to enter lower extracting stage, the miscella in lower extracting stage oil bucket is pumped to lower extracting stage spray groove by lower extracting stage circulation and sprays downwards It is dropped back into after leaching in lower extracting stage oil bucket, and lower extracting stage oil bucket rearwardly cabinet oil bucket overflow；The wet dregs of rice from lower extracting stage to the right Into section is drained, drains dilute miscella in section oil bucket and drained section circulation and be pumped to and drain section spray groove to the left part for draining section It is dropped back into after being sprayed and drains section oil bucket, drain the downward extracting stage oil bucket overflow of section oil bucket；Novel solvent passes through novel solvent spray groove To drain sprayed in the middle part of section after drop back into and drain section oil bucket, then the wet dregs of rice continue to enter to the right drain section right part without spray Section drains；(6) the grouts after draining continue to enter head cabinet to the right, and are discharged from the discharge port of the head bottom of box.

2. the extraction process of loop type extractor according to claim 1, it is characterised in that: concentrated blend is (1) middle left from step The top overflow of feed zone oil bucket is flowed out, and is removed thick impurity by fuel-displaced be pumped into level-one cyclone hydraulic separators of infuser, is entered back into Second level cyclone hydraulic separators removes thin impurity, and then clean concentrated blend enters temporary storage tank, then is mixed from the lower part of temporary storage tank Oily drawing pump is extracted out and enters vapo(u)rization system evaporation；The level-one cyclone hydraulic separators, second level cyclone hydraulic separators and temporary pot bottom The miscella of discharge returns to right feed zone spray groove by return header, sprays to the oil plant embryo having just enter into.

3. the extraction process of loop type extractor according to claim 1, it is characterised in that: step (2) in upper extracting stage oil bucket It is respectively equipped with multistage with upper extracting stage spray groove, every grade of upper extracting stage oil bucket is extracted out and sent to this by accordingly upper extracting stage circulating pump Grade upper extracting stage spray groove, the upper extracting stage oil bucket overflow of the upper extracting stage oil bucket in left side successively to the right, the rightmost side it is upper Extracting stage oil bucket passes through aqueduct feed zone oil bucket overflow to the right；Step (4) in lower extracting stage oil bucket and lower extracting stage spray groove It is respectively equipped with multistage, every grade of lower extracting stage oil bucket is accordingly descended extracting stage circulating pump to extract out and sent to the lower extracting stage spray of this grade Slot, the lower extracting stage oil bucket overflow of the lower extracting stage oil bucket on right side successively to the left, the lower extracting stage oil bucket of the leftmost side is rearwardly Cabinet oil bucket overflow.

4. the extraction process of loop type extractor according to claim 1, it is characterised in that: the loop type extractor includes leaching Device shell and the ring chain in infuser shell out are uniformly equipped with multiple scraper plates, the leaching on the ring chain Out device shell by the head cabinet, feed zone, upper extracting stage, lower extracting stage, drain section and the tail portion cabinet mutually splices It forms, the upper layer of the ring chain is located in the feed zone and upper extracting stage, and the lower layer of the ring chain is located at described It lower extracting stage and drains in section；The right output port of the feed zone and the right output port for draining section pass through flange and the head respectively The upper and lower ends of portion's cabinet are connected, and the left port of the left port of the upper extracting stage and the lower extracting stage passes through flange respectively It is connected with the upper and lower ends of the tail portion cabinet, the right output port of the left port of the feed zone and the upper extracting stage passes through method Orchid is connected, and the right output port of the lower extracting stage is connected with the left port for draining section by flange；The buffer bin connects It connects and is respectively equipped at the top of the right end top of the feed zone, the head cabinet, feed zone, upper extracting stage and tail portion cabinet Offgas outlet.

5. the extraction process of loop type extractor according to claim 4, it is characterised in that: the lower part of the head cabinet is set There is lower drive shaft, lower sprocket is installed in the lower drive shaft, the top of the head cabinet is equipped with upper guiding device；The tail The top of portion's cabinet is equipped with upper drive shaft, is equipped with upper sprocket wheel in the upper drive shaft, the lower part of the tail portion cabinet is equipped with down Tensioning shaft is equipped with lower tightener sprocket on the lower tensioning shaft, and the ring chain is successively around the lower sprocket, upper guiding On device, upper sprocket wheel and lower tightener sprocket；The upper guiding device is sliding rail or upper tightener sprocket；The upper drive shaft is by upper liquid Hydraulic driver driving, the lower drive shaft are driven by lower fluid pressure drive device, the upper fluid pressure drive device and the lower liquid Hydraulic driver is controlled by the same hydraulic power unit, the oil inlet of the upper fluid pressure drive device and the lower fluid pressure drive device Respectively by being connected for oil inlet pipe with hydraulic oil fuel feeding general pipeline, the upper fluid pressure drive device and the lower fluid pressure drive device Oil return opening passes through oil returning branch pipe respectively and is connected with hydraulic oil oil return general pipeline；The hydraulic power unit includes hydraulic oil container, hydraulic oil pump And three position four-way directional control valve, the hydraulic oil pump is by hydraulic oil pump motor driven, the Median Function of the three position four-way directional control valve For M type, the suction inlet of the hydraulic oil pump is connected with the oil outlet of the hydraulic oil container and the oil outlet of hydraulic oil container is equipped with The outlet of oil absorption filter, the hydraulic oil pump is connected by check valve with the P of three position four-way directional control valve mouth, and described three The T mouth of four-way reversing valve is connected with the oil return opening of the hydraulic oil container, the A mouth and the hydraulic oil of the three position four-way directional control valve Fuel feeding general pipeline is connected, and the B mouth of the three position four-way directional control valve is connected with the hydraulic oil oil return general pipeline.

6. the extraction process of loop type extractor according to claim 5, it is characterised in that: the upper drive shaft and it is described under Drive shaft is uniformly equipped with multiple poking devices respectively in axial direction, and each poking device respectively includes surrounding amplexis on described Drive shaft or lower drive shaft periphery are got stuck, and each periphery got stuck respectively symmetrically is equipped with the driving lever radially stretched out, The end of each driving lever is connected separately with the blade perpendicular to driving lever axis.

7. the extraction process of loop type extractor according to claim 4, it is characterised in that: width of the scraper plate along infuser Wide direction extends, and the both ends of the scraper plate are respectively fixedly connected on the outer plate of the ring chain, and the outer plate passes through Chain pin is hinged on the outside of inner plate, is respectively installed with chain idler wheel in the middle part of the chain pin, the top of the scraper plate with it is described The corresponding position of chain idler wheel is respectively fixed with wear-resistant slide block；The upper layer screen is equipped with below the upper layer of the ring chain, Embedded with the upper layer sliding rail contacted with the chain idler wheel on the upper layer screen；The lower section of lower layer's scraper plate is equipped with lower layer's screen, Embedded with the lower layer's sliding rail contacted with the wear-resistant slide block on lower layer's screen.

8. the extraction process of loop type extractor according to claim 5, it is characterised in that: the lower drive shaft is located at described On the right side of the underface of upper guiding device, the lower tensioning shaft is located on the left of the underface of the upper drive shaft；The upper drive shaft Right side be equipped with the slide carriage being connected to each other with the left end of the upper layer screen, the lower end of the slide carriage is tilted to the left, the slide carriage Lower end and the lower tensioning shaft between be equipped with the striker plate that is tilted to the right, the lower end of the striker plate be arranged right below with The blind plate of lower layer's screen level docking.

9. the extraction process of loop type extractor according to claim 8, it is characterised in that: the novel solvent spray groove is located at Below the middle part roof for draining section, the entrance of the novel solvent spray groove is connected with novel solvent pipe, described to drain section spray Below the left part roof for draining section, the section oil bucket that drains is located at below the screen for draining section slot position；Under described Extracting stage oil bucket is located at below the screen of the lower extracting stage, and the lower extracting stage spray groove is located at the roof of the lower extracting stage Lower section；The tail portion cabinet oil bucket is located at the bottom of the tail portion cabinet, and the top of the slide carriage upper end is sprayed equipped with upper self-loopa Slot is drenched, lower self-loopa spray groove is equipped with above lower layer's material of the tail portion cabinet, the more line spray groove is located at the upper leaching The bottom of the lower section of section left part roof out, the tail portion cabinet oil bucket is connect with the entrance that the tail box body circulation pumps, described The outlet of tail box body circulation pump passes through valve and the upper self-loopa spray groove, lower self-loopa spray groove respectively and more line sprays The entrance of slot is connected；The upper extracting stage oil bucket is located at below the screen of the upper extracting stage, and the upper extracting stage sprays slot position Below the roof of the upper extracting stage；The more line repairing pipe is connected to the left side wall top of the upper extracting stage oil bucket, institute The more entrance of line repairing pipe is stated to be connected with the outlet that the tail box body circulation pumps；The left and right feed zone oil bucket is located at described Left and right portion below feed zone screen, the left and right feed zone spray groove are located at the left and right portion below the feed zone roof, The upper extracting stage oil bucket of the rightmost side is by the aqueduct to the right feed zone oil bucket overflow.

10. the extraction process of the loop type extractor according to any one of claim 4 to 9, it is characterised in that: the charging It section, upper extracting stage, lower extracting stage and drains the roof of section and is respectively arranged below with the claw device for striking off bed of material top surface, the material Rake device includes claw ontology, and the claw ontology is equipped with to the inclined horizontal lower edge in supplied materials direction, on the horizontal lower edge The even rake teeth for being connected with multiple insertion bed of materials, the upper end of the claw ontology are suspended on claw trunnion axis, and the claw is horizontal The both ends of axis are hinged on claw support, and the claw support is fixed on the infuser shell.

11. the extraction process of loop type extractor according to claim 5, it is characterised in that: the hydraulic oil pump motor (M1) it is driven by frequency converter (VFD), the frequency converter (VFD) is controlled by control loop, the firewire and zero curve of the control loop Between be sequentially connected in series start button (SB1), stop button (SB2), the failure breaking-off contact of the frequency converter (VFD), stall The delay of alarm time-delay relay disconnects the coil of normally closed interlock (KT1-1) and main motor control relay (K1), start button (SB1) both ends are parallel with the self-keeping contact (K1-1) of main motor control relay, and the second of main motor control relay is normally opened Contact (K1-2) is connected on the enabling signal input terminal of the frequency converter (VFD)；The level signals of level position transducer (LT) export End is connected with the input end of analog signal (AI) of the frequency converter (VFD), the analog signal output of the frequency converter (VFD) (AO) it is connect with the first signal source input terminal (AI1) of comparator relay (SSR)；Detection infuser chain forward speed tests the speed The signal end output end of switch (ZS) is connect with the signal input part of velocity transducer (SST), the signal of velocity transducer (SST) Output end is connect with second signal source input terminal (AI2) of comparator relay (SSR)；The comparison of the comparator relay (SSR) The third normally open contact (K1-3) and the stall alert time-delay relay of signal fault contact and main motor control relay (KT1) it is connected between the firewire of control loop and zero curve after coil series connection；The high charge level of the level position transducer (LT) is opened It closes after (LT-H) connects with the coil of high charge level alarm relay (KT2) and is connected between the firewire of control loop and zero curve, it is high The normally open contact (KT2-1) of material position alarm relay (KT2) is connected to control after connecting with the coil of supplied materials relay (K2) is forbidden Between the firewire and zero curve in circuit processed；The low level switch (LT-L) and low material position alarm relay of the level position transducer (LT) (KT3) it is connected between the firewire of control loop and zero curve after coil series connection, the normally closed touching of low material position alarm relay (KT3) The delay that head (KT3-1) is connected on stall alert time-delay relay disconnects normally closed interlock (KT1-1) and main motor controls relay (K1) between coil.

12. the extraction process of loop type extractor according to claim 11, it is characterised in that: the comparator relay It (SSR) include power module, CPU, communication module, input module and relay driving module；The power module turns DC24V It changes DC 5V operating voltage into and is supplied to each module；The two-way analog signal that the input module transmits is converted to digital letter by CPU Number, calculated result is then compared judgement, if the error of two paths of signals value is more than permissible value, is driven to the relay Dynamic model block output low level makes it drive the comparison signal failure contact action；Program is downloaded to CPU by the communication module In or by CPU data and working condition be uploaded in host computer；The input module is by the 4 ~ 20mA's of two-way received Current signal is respectively converted into the voltage signal of 0 ~ 5V, and send to the two-way input end of analog signal of CPU, at the same play signal every From effect；The low level control signal that the relay driving module reception CPU is sent is gone forward side by side after row energization amplification, and institute is made It states comparison signal failure contact and generates closed action.