CN105233971B - A kind of swash plate overflow pulp hierarchy system and ore pulp grading technology - Google Patents

Abstract

The present invention relates to a kind of swash plate overflow pulp hierarchy system and ore pulp grading technology, ore pulp is centrifuged into cyclone, and more than 74 μm grade materials are discharged from the spigot of cyclone, are returned to after being regrinded through grinding machine in cyclone；Less than 74 μm grade materials are discharged from the overfall of cyclone, after buffered tank caching, are pumped into lamella thickener by one-level slurry and are carried out sedimentation separation；More than 37 μm grade materials are discharged from the underflow opening of lamella thickener, and less than 37 μm grade materials are discharged through 0.5mm from the overfall of lamella thickener and screen out big slag every slag；Remove after the ore pulp after big slag stirs evenly into agitator tank, 0.8mm filter impurity eliminations are pumped into by two grades of slurries；Ore pulp after impurity elimination is classified into swash plate grader, and grader sand setting is discharged from the underflow discharging opening of swash plate grader, and classifier overflow is discharged into mine tailing from the overflow discharging opening of swash plate grader.The hierarchy system and technique can improve the target minreal rate of recovery, increase economic efficiency.

Description

A kind of swash plate overflow pulp hierarchy system and ore pulp grading technology

Technical field

The present invention relates to a kind of ore-sorting system, more particularly to a kind of swash plate overflow pulp hierarchy system；The invention further relates to A kind of ore pulp grading technology, belongs to ore pulp processing technology field.

Background technology

Our times resource increasingly depleted, resource utilization is not generally high, in order to improve mineral recovery rate, it is to avoid resource wave Take.Using principles such as " early receipts can be received, early lose can be lost " more than ore dressing, efficiency is improved with reference to thickness grading dressing method, is reduced into This.But current abundant ore source is increasingly exhausted, poor, miscellaneous, particulate is contaminated ore and increased year by year, and Gu Ximokuang reaches that monomer dissociation is inevitable Concomitant measure as improvement mineral processing index.When mineral reach micro-size fraction（Below 38 μm of particle diameter）When be not classified effectively Equipment disclosure satisfy that current ore-dressing technique demand and economic requirement.Enter mine tailing general micro-size fraction mineral to abandon more, reduce mesh Mineral the rate of recovery, cause the wasting of resources, beneficiation cost improved indirectly.

In current ore-dressing technique, for the material that granularity is thicker, first with one section of cyclone, appropriate feed force, Its partition size is 74 μm under the conditions of feed ore concentration, and most of more than 74 μm grade feed enrichments enter next work into sand setting Section；Most of less than 74 μm grade feed enrichments into overflow again through lamella thickener, in appropriate mine-supplying quantity, feed ore concentration bar Its partition size is 37 μm under part, under most of more than 37 μm grade feed enrichments enter into the cone bottom sand setting of lamella thickener One workshop section；Most of less than 37 μm grade materials enter in overflow, and overflow is directly discharged into Tailings Dam.

Micro-size fraction mineral are directly entered mine tailing discarding, reduce the rate of recovery of target minreal, cause the wasting of resources, indirectly Improve beneficiation cost.If directly sorting, feed thickness possibly can not meet technological requirement, and because of the ultra-fine grade mineral shadow in part Ring, increase next workshop section's machine utilization, the target minreal rate of recovery is low, sort cost high, it is impossible to meet economic requirement.

The content of the invention

The primary and foremost purpose of the present invention is that overcoming problems of the prior art, there is provided a kind of swash plate overflow pulp point Level system, can improve the target minreal rate of recovery, increase economic efficiency.

For solve above technical problem, a kind of swash plate overflow pulp hierarchy system of the invention, including cyclone, grinding machine, Surge tank, one-level Pulp pump, lamella thickener and two grades of Pulp pumps, the entrance phase of the spigot of the cyclone and the grinding machine Even, the grinding machine outlet with new ore pulp jointly enter the cyclone charging aperture, the overfall of the cyclone with it is described The entrance of surge tank is connected, and the outlet of the surge tank is connected with the entrance of the one-level Pulp pump, the one-level Pulp pump Outlet is connected with the entrance of the lamella thickener, in addition to sieve every slag, agitator tank, filter and swash plate grader, it is described oblique The overfall of plate concentrator be connected with the entrance sieved every slag, and the screenings sieved every slag is exported and the agitator tank enters Mouthful connection, the outlet of the agitator tank is connected with the entrance of two grades of Pulp pumps, the outlet of two grades of Pulp pumps with it is described The entrance connection of filter, the outlet of the filter is connected with the charging aperture of the swash plate grader, the swash plate grader Overflow discharging opening be connected with tail-mineral pipeline.

Relative to prior art, the present invention achieves following beneficial effect：New ore pulp is centrifuged into cyclone, More than 74 μm grade materials are discharged from the spigot of cyclone, are returned to after being regrinded through grinding machine in cyclone；Less than 74 μm grade things Expect to discharge from the overfall of cyclone, after buffered tank caching, lamella thickener is pumped into by one-level slurry and carries out sedimentation separation； More than 37 μm grade materials are discharged into next Zai Xuan workshop sections from the underflow opening of lamella thickener, less than 37 μm grade materials from The overfall discharge of lamella thickener screens out big slag through 0.5mm every slag；Remove after the ore pulp after big slag stirs evenly into agitator tank, 0.8mm filter impurity eliminations are pumped into by two grades of slurries, prevent from blocking swash plate grader；Ore pulp after impurity elimination enters swash plate grader It is classified, grader sand setting is discharged into next Zai Xuan workshop sections, classifier overflow from the underflow discharging opening of swash plate grader Mine tailing is discharged into from the overflow discharging opening of swash plate grader.Needed according to technique, swash plate grader can be by 20 μm, 15 μm points Level, classification matter efficiency can reach 55 ~ 65%.The hierarchy system technological process of the present invention is simple and reliable, and operational efficiency is high, classification Matter efficiency can reach 65% or so, it is to avoid less than 37 μm grade materials are directly discharged into Tailings Dam, reduce lower one of machine utilization, The rate of recovery of purpose metal is greatly improved, factory's economic benefit is selected in raising.In addition, also with certain inspissation, cocnentration factor Up to 2 ~ 3.5, next workshop section's feed thickness demand can be met.

As the improvement of the present invention, the swash plate grader includes rotary drum case and the rotary drum group positioned at rotary drum case inner chamber Part, underflow case of the rotary drum case by superposed overflow case and positioned at bottom, which surrounds, to be formed, the overflow case Top in fornix shape and top center by overflow case top closure, the periphery bottom of the overflow case is provided with overflow discharging Mouthful, the periphery bottom of the underflow case is provided with underflow discharging opening；The center of the overflow case top cover is plugged with feed pipe, institute The axis for stating the lower end edge drum assembly of feed pipe is inserted into the inner chamber bottom of drum assembly, and the lower end periphery of the feed pipe Provided with the feed pipe flinger ring for preventing liquid upstream；The mid diameter maximum of the drum assembly is evenly distributed with multiple rotary drums Underflow opening, the rotary drum underflow opening is connected with the underflow discharging opening by runner；On the top circumference of the drum assembly Multiple rotary drum overfalls are evenly distributed with, the rotary drum overfall is connected with the overflow discharging opening by runner；Described turn The bottom centre of drum component is fixed on the armature spindle upper end of main motor, and the main motor is fixed on the inner chamber of base, the base Upper port be fixedly connected with the lower end of the underflow case.When 1. working, drum assembly revolves at a high speed under the driving of main motor Change the line of production and give birth to very big centrifugal force, rotary drum case and feed pipe transfixion, material is entered under the inner chamber of drum assembly by feed pipe Portion, in the presence of feed pipe flinger ring and centrifugal force, into drum assembly runner carry out rotating separation after, light phase material from After the rotary drum overfall discharge on drum assembly top, reach the overflow discharging opening of overflow case periphery bottom through runner and discharge； Concentrated phase material reaches underflow case periphery bottom after the rotary drum underflow opening discharge of drum assembly mid diameter maximum through runner Underflow discharging opening and discharge, so realize the classification of light phase material and concentrated phase material.2. grader itself of the invention contains Dynamic source, drum assembly rotates at a high speed, produces powerful centrifugal force field, can accelerate the sedimentation separation of microfine, production effect Rate is high, and effectiveness of classification and efficiency high, treating capacity are big.3. grader floor space of the invention is small, equipment investment and capital construction stringing It is low etc. cost.4. limited small by feed force, graded index is stable.5. main motor is built-in and directly drives drum assembly, significantly Saved drive disk assembly, made equipment compacter, greatly reduced the gross weight and appearance and size of equipment, be easy to whole Transporting and Lifting, has saved manufacturing cost.6. it is sequentially stacked and is formed by base, underflow case and overflow case outside grader of the invention The entirety of one closing, external without any rotary part, security is good, and profile is succinctly attractive in appearance.7. drum assembly of the invention With main motor coaxial line, the overall axisymmetricly state of rotation portion is conducive to equipment to keep dynamic balancing, bearing when high speed rotates The force-bearing situation at position is good, and service life is long.8. compared with using traditional hydrocyclone or lamella thickener classification, this hair Bright swash plate grader floor space is small, and production efficiency is high, invests low, effectiveness of classification and efficiency high, simplifies classification flow, greatly The big rate of recovery for improving purpose metal,, will not be the composition of flocculant without addition flocculant without using multistage classification Bringing into influences mineral processing index in ore pulp, reduce reagent cost and advantageously reduce pollution to environment.

As the improvement of the present invention, the inner chamber of the overflow case is provided with overflow inner casing, and the overflow inner casing envelope is in institute State and inner casing apical ring is connected with the top of the upper periphery of drum assembly, the overflow inner casing, the inner casing apical ring is located at described turn The lower outer of drum overfall；It is connected with each other between the overflow inner casing and the overflow case by overflow discharging ring, it is described Overflow discharging ring is rounded in the shape of a spiral along the chuck of the overflow case and minimum position is docked with the overflow discharging opening； The inner chamber of the underflow case be provided with underflow inner casing, the underflow inner casing envelope the drum assembly lower, outer perimeter, it is described The top of underflow inner casing is located on the inside of the lower section of the rotary drum underflow opening, passes through between the underflow inner casing and the underflow case Underflow discharging ring is connected with each other, and the underflow discharging ring rounds and lowest part along the chuck of the underflow case in the shape of a spiral Docked with the underflow discharging opening position.When grader is in running order, drum assembly rotates at a high speed, and light phase material is from rotary drum After the rotary drum overfall discharge on component top, outwards flown out under huge centrifugal action, cross the endoporus of inner casing apical ring, entered In chuck between overflow case and overflow inner casing, fall in overflow discharging ring, descending, overflow discharging is rotated along overflow discharging ring The minimum position of ring is docked with overflow discharging opening, and light phase material is discharged.Rotary drum underflow of the concentrated phase material in the middle part of drum assembly After mouth discharge, outwards fly out, into the chuck between underflow case and underflow inner casing, fall the bottom of under huge centrifugal action Flow in discharging ring, descending along the rotation of underflow discharging ring, the minimum position of underflow discharging ring is docked with underflow discharging opening, by concentrated phase thing Matter is discharged.When grader needs cleaning, stop material supply, clear water enters from feed pipe, and drum assembly is maintained at high speed shape Spin for some time under state, clear water is washed to the inner chamber of material flow path and drum assembly, and then clear water is from rotary drum overfall Fly out, respectively clean up overflow discharging ring and underflow discharging ring with rotary drum underflow opening, overflow discharging ring and underflow discharging ring Whole process, can be clean by thoroughly cleaning without dead angle.Then the rotating speed of drum assembly is reduced, centrifugal force diminishes, rotary drum overfall Water outlet fallen from the endoporus of inner casing apical ring, flow, the outer wall of drum assembly carried out along the outer wall of drum assembly from top to bottom Cleaning.The top of underflow inner casing is located on the inside of the lower section at drum assembly maximum gauge, rinse water is fallen in underflow discharging ring.

As the improvement of the present invention, the bottom center region of the drum assembly upwards depression formed it is up-small and down-big and for etc. Rotary drum fan is installed, the rotary drum fan is low in the high periphery in center in the rotary drum cavity of waist trapezoid cross section, the rotary drum cavity Taper, the center of the rotary drum fan is fixed on the armature spindle of the main motor；The inner chamber of the base is provided with and base It is connected with each other between the base inner casing of coaxial line, the internal perisporium of the base inner casing and base by base gusset, the main electricity The upper end cover of machine stretches out the periphery of motor body and is fixedly connected in the upper port of the base inner casing, the main motor Upper end cover is evenly distributed with lid air vent on multiple motors, the lower circumference of the base on the circumference of outer rim and set respectively There is the fresh air inlet that multiple inner chambers with the base inner casing are communicated；The highest position of the underflow discharging ring is less than in the underflow The upper limb of shell；The lower section of the rotary drum fan is provided with drip tray, and the drip tray is in low inside and high outside taper, the drip tray Inner edge is provided with the flanging being folded upward at, and the flanging is embedded in the annular groove of the rotary drum fan lower surface, the drip tray Periphery be provided with annular deep gouge to lower recess, the middle part of the underflow inner casing short transverse is provided with spilled water hole, the spilled water hole Communicated with the bottom of the annular deep gouge, the axis of the axis of the spilled water hole and the underflow discharging opening is positioned at same vertical In plane.Because main motor is underlying, main motor region can not have water droplet entrance, high under drum assembly drives in main motor During speed rotation, under the action of the centrifugal force, current outwards fly out；Rotary drum fan also rotates at a high speed with the armature spindle of main motor simultaneously, Air-flow enters the inner chamber of base inner casing from the fresh air inlet of base lower circumference, then lid air vent enters the upper of main motor from motor Side space, in the presence of rotary drum fan, blows out, prevents water droplet upwards from the gap between base inner casing top and drum assembly Fall from there.When equipment is in cleaning state, rinse water falls in underflow discharging ring, and a small amount of water droplet can be along rotary drum group The outer wall of part flows downward to the lowest part of drum assembly, then drops down onto on drip tray down, because drip tray is in low inside and high outside Taper and inner edge are provided with the flanging being folded upward at, and all water droplets can be outwardly into annular deep gouge, then from letting out on underflow inner casing Water hole falls to underflow discharging ring.The water of annular deep gouge is highly enough to ensure that the mobilization dynamic to spilled water hole, will not make drip tray Produce overflow.The underflow discharging ring of underflow discharge outlet is in extreme lower position, and spilled water hole is located at herein can be with underflow discharging ring Keep maximum drop, it is to avoid the annular deep gouge of current direction in underflow discharging ring pours in down a chimney.

As the improvement of the present invention, the drum assembly includes rotary drum body, and the rotary drum body is upper and lower ends diameter The small, cydariform that middle part diameter is big；The inner chamber of the rotary drum body is described provided with the swash plate support with rotary drum body coaxial line The center of swash plate support is provided with up-small and down-big conically shaped, and the lower end of the feed pipe is inserted under the inner chamber of the conically shaped Portion；The bottom periphery of the conically shaped is connected with up-small and down-big conical floor, and the lower edge of the conical floor is supported on described On the inwall of rotary drum body, left between the bottom of the lower section of the conical floor and the rotary drum body into material space；It is described Radial be uniformly provided between the outer gusset of a plurality of conically shaped, the outer gusset of adjacent two conically shaped of the outer wall of conically shaped is formed respectively Circulation road, the upper end of the upper circulation road is communicated with the corresponding rotary drum overfall respectively；The top of the conical floor according to Secondary to be stacked with multiple up-small and down-big and shape size identical taper swash plate, the upper surface of each taper swash plate is provided with multiple tracks in radiation Shape is uniformly distributed and highly equal fin, and the fin is corresponded and positioned at identical phase with the outer gusset of the conically shaped On, the inner periphery of each taper swash plate is fixed on outside the conically shaped on gusset by keyway；The lower end of fin described in adjacent two it Between be respectively equipped with swash plate through hole, each swash plate through hole is distributed on same circumference；The lower circumference of the conical floor is provided with Multiple chassis through holes, the chassis through hole is corresponded and is mutually communicated with the swash plate through hole；Above the taper swash plate of top layer Swash plate gland is pressed with, the periphery of the swash plate gland is fixed in the upper port of the rotary drum body, in the swash plate gland Center portion position is protruded upward outside the inner casing apical ring, and the upper port of the swash plate gland is provided with overflow outlet cap, and the overflow goes out The centre of lid is higher than lower circumference, and the lower circumference of the overflow outlet cap is fixed on the upper port of the swash plate gland On, each rotary drum overfall is located in the lower circumference of the overflow outlet cap and is horizontally directed to outside.Conically shaped lower end Horn mouth plays a part of spreading material, and the conical floor of conically shaped bottom periphery plays a part of supporting taper swash plate, taper Chassis and swash plate gland are common to taper swash plate heap progress axially position, and the outer gusset of each conically shaped carries out center to taper swash plate heap Position and radial positioning is carried out by key；Material reaches the bottom of conically shaped after feed pipe outflow, under the influence of centrifugal force Into the underlying space of conical floor, it is then up through forming heavy between each chassis through hole and swash plate through hole, two taper swash plates Space drops, and concentrated phase material is deposited in the lower surface of each taper swash plate because particle diameter is larger, and under the action of the centrifugal force to taper The big end flowing of swash plate, then departs from taper swash plate and is flowed out from each rotary drum underflow opening；Light phase material is smaller along taper due to particle diameter Gap between swash plate is flowed up to overflow from the upper circulation road between gusset outside each conically shaped, is finally exported from overflow Each rotary drum overfall outflow on lid circumference.The fin of each taper swash plate upper surface make to keep between taper swash plate it is equal away from From, while the space between taper swash plate is divided into some deciles, respective upper circulation road pair between gusset outside conically shaped It should connect；Swash plate heap is constituted because drum assembly is superimposed using multiple relatively thin taper swash plates, it is heavy to significantly increase Area is dropped, yield is improved；Simultaneously because the high speed rotation of drum assembly, beneficial to the centrifugation and discharge of concentrated phase material, greatly Improve classification efficiency.

As the improvement of the present invention, overflow outlet cap is passed through between the centre of the overflow outlet cap and lower circumference The conical surface is connected as a single entity, and multiple jet orifices are evenly distributed with the overflow outlet cap conical surface；With institute on the overflow case top cover Jet orifice is stated to point on the corresponding circumference in position at least provided with a visor.Material enters behind conically shaped bottom from feed pipe, To the flowing underneath of conical floor under centrifugal action, feed pipe flinger ring plays the effect for preventing liquid up；But if The feed rate of feed pipe is excessive, has exceeded the disposal ability of swash plate grader, and material will choke upwards along conically shaped, from overflow Jet orifice on the outflow lid conical surface sprays upwards, is mapped on visor, and operating personnel can be existing to this with slave unit external observation As feed rate suitably being reduced, so as to can both ensure that grader works under larger flow, can avoid flow super negative again Lotus.

As the improvement of the present invention, the armature spindle upper end of the main motor is connected with up-small and down-big deflection cone, described to lead The lower surface of flow cone is pressed on the bottom wall of the rotary drum body；The inner chamber of the conically shaped and the underlying space of the conical floor In it is radial be uniformly provided with multiple tracks charging shunting gusset the underlying space of taper tube inner chamber and the conical floor is separated into Multiple independent charging runners；The charging shunting gusset is corresponded and positioned at identical phase with the outer gusset of the conically shaped On, the lower end of each charging runner is corresponded with the swash plate through hole respectively to be connected；The taper swash plate of bottom and institute State and lower disc is provided between conical floor, upper disc is provided between the taper swash plate and the swash plate gland of top layer, it is described The disc through hole for corresponding and being mutually communicated with the swash plate through hole is respectively equipped with the circumference of lower disc.Deflection cone can subtract Small material is to resistance during conical floor flowing underneath, and charging shunts the outer gusset of gusset, the fin on taper swash plate and conically shaped Material flow path is divided into multiple units, made separate between each unit, it is to avoid the disorder in flow field.Upper disc and lower disc Upper and lower surface can be parallel to each other, can also be in a certain angle, change the upper disc and lower disc of different angles, thus it is possible to vary cone The drift angle of shape swash plate, to better adapt to different mineral, substantially increases the versatility of grader, reduces equipment investment.

As the improvement of the present invention, adjusted between the overflow outlet cap and the upper port of the swash plate gland provided with overflow Plate, gap is left between the inner periphery of the overflow regulation plate and the outer wall of the conically shaped.Overflow adjust plate to overflow The insertion depth of circulation road, determines the uninterrupted of light phase material, it is to avoid overflow flow velocity causes classification insufficient very much soon, changes Various sizes of overflow adjusts plate, it is possible to better adapts to different mineral, substantially increases the versatility of grader, subtract Small equipment investment.

Be separately installed with underflow nozzle as the improvement of the present invention, in the rotary drum underflow opening, the underflow nozzle it is interior Termination is embedded with anti-wearing liner, the inner face of the anti-wearing liner and is respectively equipped with bushing annular groove respectively.Due to concentrated phase thing The abrasion of confrontation underflow nozzle is than larger, and the inner termination of underflow nozzle sets anti-wearing liner to extend the use longevity of underflow nozzle Life；In use, product has expired ore pulp material to equipment in bushing annular groove, and ore pulp deposit is first subject to rushing for concentrated phase material Hit, form the situation that thing is ground with thing, further extend the service life of underflow nozzle.

It is a further object of the invention to provide a kind of grading technology of ore pulp, technological process is short, effectiveness of classification and effect Rate is high.

To solve above technical problem, ore pulp grading technology of the invention in turn includes the following steps：(1) new ore pulp enters Cyclone is centrifuged, and more than 74 μm grade materials are discharged from the spigot of cyclone, and eddy flow is returned to after being regrinded through grinding machine In device；(2) it is less than 74 μm of grade materials to discharge from the overfall of cyclone, after buffered tank caching, is pumped into tiltedly by one-level slurry Plate concentrator carries out sedimentation separation；(3) more than 37 μm grade materials are discharged from the underflow opening of lamella thickener, less than 37 μm grades Material is discharged through 0.5mm from the overfall of lamella thickener and screens out big slag every slag；(4) remove the ore pulp after big slag and enter stirring After tank is stirred evenly, 0.8mm filter impurity eliminations are pumped into by two grades of slurries；(5) the ore pulp after impurity elimination is divided into swash plate grader Level, grader sand setting is discharged from the underflow discharging opening of swash plate grader, overflow discharging opening of the classifier overflow from swash plate grader It is discharged into mine tailing.

Relative to prior art, the present invention achieves following beneficial effect：Needed according to technique, swash plate grader can be by 20 μ M, 15 μm be classified, classification matter efficiency can reach 55 ~ 65%.The grading technology of the present invention is simple and reliable, and operational efficiency is high, Classification matter efficiency can reach 65% or so, it is to avoid less than 37 μm grade materials are directly discharged into Tailings Dam, reduce lower one of equipment and bear Lotus, greatly improves the rate of recovery of purpose metal, and factory's economic benefit is selected in raising.In addition, also with certain inspissation, concentration Than up to 2 ~ 3.5, next workshop section's feed thickness demand can be met.

Brief description of the drawings

The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to Illustrate to use, be not used to the limitation present invention.

Fig. 1 is the flow chart of swash plate overflow pulp hierarchy system of the present invention.

Fig. 2 is the front view of swash plate grader in the present invention.

Fig. 3 is Fig. 2 top view.

Fig. 4 is Fig. 2 left view.

Fig. 5 is the sectional view in Fig. 3 along A-A.

Fig. 6 is the enlarged drawing at B positions in Fig. 5.

Fig. 7 is the stereogram of swash plate grader in the present invention.

Fig. 8 is the runner schematic diagram of the overflow discharging ring of swash plate grader.

Fig. 9 is the three-dimensional exploded view of swash plate grader in the present invention.

Figure 10 is the three-dimensional exploded view of drum assembly.

Figure 11 is the control principle drawing of swash plate grader of the present invention.

In figure：H1. cyclone；Q1. grinding machine；T1. surge tank；B1. one-level Pulp pump；N1. lamella thickener；B2. two grades Pulp pump；S1. sieved every slag；T2. agitator tank；L1. filter；D1. swash plate grader；1. base；1a. base inner casings；1b. bases Gusset；1c. fresh air inlets；2. main motor；2a. armature spindles；2b. deflection cones；Lid air vent on 2c. motors；3. drip tray；3a. rings Shape deep gouge；4. rotary drum fan；5. rotary drum body；5a. rotary drum underflow openings；5b. underflow nozzles；5b1. anti-wearing liner；5b2. bushing Annular groove；5c. rotary drum body counterweight tanks；6. conically shaped；The outer gusset of 6a. conically shapeds；6b. charging shunting gussets；7. conical bottom Disk；8. lower disc；9. taper swash plate；9a. swash plate through holes；10. on disc；11. swash plate gland；11a. gland counterweight tanks；12. overflow Flow out lid；12a. rotary drum overfalls；12b. jet orifices；12c. overflows adjust plate；13. feed pipe；13a. feed pipes keep off liquid Ring；14. overflow case；14a. overflow case top covers；14b. overflow discharging openings；15. overflow inner casing；15a. inner casing apical rings；16. overflow Flow discharging ring；17. visor；18. underflow case；18a. underflow discharging openings；19. underflow inner casing；19a. spilled water holes；20. bottom is flowed out Expect ring；21. terminal box；SA1. safety relay；SB1. scram button；SB2. stop button；SB3. start button；SB4. reset Button；SW1. safety door protects switch；SW2. pulse signal detection is switched；SW3. vibration signal detection switch；PTC1. temperature signal Detection switch；CM1. main motor control relay；KT1. very first time relay；KT2. second time relay；KT3. the 3rd The time relay；LP1. signal lamp；F1. fuse one；F2. fuse two；F3. fuse three；Q1. electrothermal relay.

Embodiment

As shown in figure 1, the swash plate overflow pulp hierarchy system of the present invention includes cyclone H1, grinding machine Q1, surge tank T1, one Level Pulp pump B1, lamella thickener N1, two grades of Pulp pump B2, every slag sieve S1, agitator tank T2, filter L1 and swash plate grader D1, cyclone H1 spigot are connected with grinding machine Q1 entrance, and grinding machine Q1 outlet enters cyclone H1's with new ore pulp jointly Charging aperture, cyclone H1 overfall is connected with surge tank T1 entrance, surge tank T1 outlet and entering for one-level Pulp pump B1 Mouthful it is connected, one-level Pulp pump B1 outlet is connected with lamella thickener N1 entrance, lamella thickener N1 overfall and every slag S1 entrance connection is sieved, the screenings outlet for sieving S1 every slag is connected with agitator tank T2 entrance, agitator tank T2 outlet and two grades Pulp pump B2 entrance connection, two grades of Pulp pump B2 outlet be connected with filter L1 entrance, filter L1 outlet and oblique Disk grader D1 charging aperture connection, swash plate grader D1 overflow discharging opening is connected with tail-mineral pipeline.

New ore pulp is centrifuged into cyclone H1, and cyclone H1 column part internal diameter is φ 300mm, 74 μm with Upper grade material is discharged from cyclone H1 spigot, is returned to after being regrinded through grinding machine Q1 in cyclone H1；Less than 74 μm grade things Expect to discharge from cyclone H1 overfall, after buffered tank T1 cachings, lamella thickener N1 is sent into by one-level Pulp pump B1 and carried out Sedimentation separation；Lamella thickener N1 column part internal diameter is φ 100mm, and more than 37 μm grade materials are from lamella thickener N1's Underflow opening is discharged into next Zai Xuan workshop sections, and less than 37 μm grade materials discharge warp from lamella thickener N1 overfall 0.5mm removes big slag every slag sieve S1；Remove after the ore pulp after big slag stirs evenly into agitator tank T2, sent into by two grades of Pulp pump B2 0.8mm filter L1 impurity eliminations, prevent from blocking swash plate grader D1；Ore pulp after impurity elimination is classified into swash plate grader D1, Grader sand setting from swash plate grader D1 underflow discharging opening are discharged into next Zai Xuan workshop sections, and classifier overflow divides from swash plate Level machine D1 overflow discharging opening is discharged into mine tailing.

As shown in Fig. 2 to Figure 10, swash plate grader D1 includes rotary drum case and the drum assembly positioned at rotary drum case inner chamber, Underflow case 18 of the rotary drum case by superposed overflow case 14 and positioned at bottom, which surrounds, to be formed, the top of overflow case 14 Closed in fornix shape and top center by overflow case top cover 14a, the periphery bottom of overflow case 14 is provided with overflow discharging opening 14b, the periphery bottom of underflow case 18 is provided with underflow discharging opening 18a；Overflow case top cover 14a center is plugged with feed pipe 13, the axis of the lower end edge drum assembly of feed pipe 13 is inserted into the inner chamber bottom of drum assembly, and outside the lower end of feed pipe 13 Week is provided with the feed pipe flinger ring 13a for preventing liquid upstream；The mid diameter maximum of drum assembly is evenly distributed with multiple turns Drum underflow opening 5a, rotary drum underflow opening 5a are connected with underflow discharging opening 18a by runner；It is uniform on the top circumference of drum assembly Multiple rotary drum overfall 12a are distributed with, rotary drum overfall 12a is connected with overflow discharging opening 14b by runner；Drum assembly Bottom centre is fixed on the armature spindle 2a upper ends of main motor 2, and main motor 2 is fixed on the inner chamber of base 1, the upper port of base 1 with The lower end of underflow case 18 is fixedly connected, and the periphery of base 1 is provided with terminal box 21.

The inner chamber of overflow case 14 is provided with overflow inner casing 15, and the envelope of overflow inner casing 15 overflows in the upper periphery of drum assembly The top of stream inner casing 15 is connected with inner casing apical ring 15a, and inner casing apical ring 15a is located at rotary drum overfall 12a lower outer；In overflow It is connected with each other between shell 15 and overflow case 14 by overflow discharging ring 16, overflow discharging ring 16 is in the shape of a spiral along overflow case 14 Chuck round and minimum position is docked with overflow discharging opening 14b；The inner chamber of underflow case 18 is provided with underflow inner casing 19, bottom Lower, outer perimeter of the envelope of inner casing 19 in drum assembly is flowed, the top of underflow inner casing 19 is located on the inside of rotary drum underflow opening 5a lower section, It is connected with each other between underflow inner casing 19 and underflow case 18 by underflow discharging ring 20, underflow discharging ring 20 is in the shape of a spiral along underflow The chuck of case 18 is rounded and minimum position is docked with underflow discharging opening 18a.

During work, rotation produces very big centrifugal force to drum assembly at a high speed under the driving of main motor 2, rotary drum case and enters The transfixion of expects pipe 13, material is entered the inner chamber bottom of drum assembly by feed pipe 13, in feed pipe flinger ring 13a and centrifugal force In the presence of, the runner into drum assembly is carried out after rotating separation, rotary drum overfall of the light phase material from drum assembly top After 12a discharges, reach the overflow discharging opening 14b of the periphery bottom of overflow case 14 through runner and discharge；Concentrated phase material is from rotary drum group After the rotary drum underflow opening 5a discharges of part mid diameter maximum, the underflow discharging opening of the periphery bottom of underflow case 18 is reached through runner 18a is simultaneously discharged, and so realizes the classification of light phase material and concentrated phase material.

When grader is in running order, drum assembly is rotated at a high speed with 900 ~ 1200rpm, and light phase material is from rotary drum group After the rotary drum overfall 12a discharges on part top, outwards flown out under huge centrifugal action, cross inner casing apical ring 15a endoporus, Into in the chuck between overflow case 14 and overflow inner casing 15, fall in overflow discharging ring 16, rotated along overflow discharging ring 16 Descending, the minimum position of overflow discharging ring 16 is docked with overflow discharging opening 14b, and light phase material is discharged.Concentrated phase material is from rotary drum After rotary drum underflow opening 5a discharges in the middle part of component, outwards flown out under huge centrifugal action, into underflow case 18 and underflow In chuck between inner casing 19, fall in underflow discharging ring 20, rotated along underflow discharging ring 20 descending, underflow discharging ring 20 is most Lower curtate position is docked with underflow discharging opening 18a, and concentrated phase material is discharged.

When grader needs cleaning, stop material supply, clear water enters from feed pipe 13, and drum assembly is maintained at a high speed Spin for some time under state, clear water is washed to the inner chamber of material flow path and drum assembly, and then clear water is from rotary drum overflow Mouth 12a and rotary drum underflow opening 5a flies out, and respectively cleans up overflow discharging ring 16 and underflow discharging ring 20.Then rotary drum is reduced The rotating speed of component, centrifugal force diminishes, and rotary drum overfall 12a water outlet is fallen from inner casing apical ring 15a endoporus, along drum assembly Outer wall is flowed, and the outer wall of drum assembly is cleaned from top to bottom.It is maximum straight that the top of underflow inner casing 19 is located at drum assembly On the inside of lower section at footpath, rinse water is set to fall in underflow discharging ring 20.

Depression forms rotary drum cavity up-small and down-big and for isosceles trapezoid section to the bottom center region of drum assembly upwards, Rotary drum fan 4 is installed, rotary drum fan 4 is in the low taper in the high periphery in center, and the center of rotary drum fan 4 is fixed in rotary drum cavity On the armature spindle 2a of main motor 2；The inner chamber of base 1 is provided with base inner casing 1a, base inner casing 1a and base 1 with base coaxial line Internal perisporium between be connected with each other by base gusset 1b, the upper end cover of main motor 2 stretches out the periphery of motor body and solid Surely in the upper port for being connected to base inner casing 1a, the upper end cover of main motor 2 is evenly distributed with multiple motors on the circumference of outer rim The fresh air inlet 1c that multiple inner chambers with base inner casing 1a are communicated is respectively equipped with upper lid air vent 2c, the lower circumference of base 1；Bottom The highest position for flowing discharging ring 20 is less than the upper limb of underflow inner casing 19.

The lower section of rotary drum fan 4 is provided with drip tray 3, and drip tray 3 is in low inside and high outside taper, and the inner edge of drip tray 3 is provided with In the flanging being folded upward at, the annular groove of the lower surface of flanging insertion rotary drum fan 4, the periphery of drip tray 3 is provided with to lower recess Annular deep gouge 3a, the middle part of the short transverse of underflow inner casing 19 is provided with spilled water hole 19a, spilled water hole 19a and annular deep gouge 3a bottom Portion is communicated, and spilled water hole 19a axis is located in same perpendicular with underflow discharging opening 18a axis.

Because main motor 2 is underlying, the region of main motor 2 can not have water droplet entrance, when drum assembly drives in main motor 2 During lower high speed rotation, under the action of the centrifugal force, current outwards fly out；Rotary drum fan 4 is also high with the armature spindle 2a of main motor 2 simultaneously Speed rotation, air-flow enters base inner casing 1a inner chamber, then the lid air vent 2c from motor from the fresh air inlet 1c of the lower circumference of base 1 Into the superjacent air space of main motor 2, in the presence of rotary drum fan 4, between base inner casing 1a tops and drum assembly Gap is blown out upwards, prevents water droplet from falling from there.

When equipment is in cleaning state, rinse water falls in underflow discharging ring 20, and a small amount of water droplet can be along rotary drum group The outer wall of part flows downward to the lowest part of drum assembly, then drops down onto on drip tray 3 down, because drip tray 3 is in low inside and high outside Taper and inner edge is provided with the flanging that is folded upward at, all water droplets can be outwardly into annular deep gouge 3a, then from underflow inner casing 19 On spilled water hole 19a fall to underflow discharging ring 20.Annular deep gouge 3a water is highly enough to ensure that the flowing to spilled water hole 19a is moved Power, will not make drip tray 3 produce overflow.Underflow discharging ring 20 at underflow discharging opening 18a is in extreme lower position, spilled water hole 19a It is located at the drop that can keep maximum with underflow discharging ring 20 herein, it is to avoid the annular deep gouge 3a of current direction in underflow discharging ring 20 Pour in down a chimney.

Drum assembly includes rotary drum body 5, and rotary drum body 5 is the cydariform that upper and lower ends diameter is small, middle part diameter is big； The inner chamber of rotary drum body 5 is provided with up-small and down-big cone provided with the swash plate support with rotary drum body coaxial line, the center of swash plate support Shape cylinder 6, the lower end of feed pipe 13 is inserted into the inner chamber bottom of conically shaped 6；The bottom periphery of conically shaped 6 is connected with up-small and down-big Conical floor 7, the lower edge of conical floor 7 is supported on the inwall of rotary drum body 5, lower section and the rotary drum body 5 of conical floor 7 Left between bottom into material space；The outer wall of conically shaped 6 is radial to be uniformly provided with the outer gusset 6a of a plurality of conically shaped, adjacent two cone Upper circulation road is formed between the outer gusset 6a of shape cylinder respectively, the upper end of upper circulation road is communicated with corresponding rotary drum overfall 12a respectively.

The top of conical floor 7 has been sequentially stacked multiple up-small and down-big and shape size identical taper swash plate 9, each taper The upper surface of swash plate 9 is uniformly distributed and highly equal fin provided with multiple tracks is radial, fin and the outer gusset 6a mono- of conically shaped One is corresponded to and is located in identical phase, and the inner periphery of each taper swash plate 9 is fixed on outside conically shaped on gusset 6a by keyway；Phase Swash plate through hole 9a is respectively equipped between the lower end of adjacent two fins, each swash plate through hole 9a is distributed on same circumference；Conical floor 7 Lower circumference be provided with multiple chassis through holes, chassis through hole and swash plate through hole 9a one-to-one corresponding and be mutually communicated.

The top of taper swash plate 9 of top layer is pressed with swash plate gland 11, and the periphery of swash plate gland 11 is fixed on the upper of rotary drum body 5 On port, the centre of swash plate gland 11 is protruded upward outside inner casing apical ring 15a, and the upper port of swash plate gland 11 is provided with overflow Outlet cap 12, the centre of overflow outlet cap 12 is higher than lower circumference, and the lower circumference of overflow outlet cap 12 is fixed on swash plate In the upper port of gland 11, each rotary drum overfall 12a is located in the lower circumference of overflow outlet cap 12 and is horizontally directed to outside.Figure The taper swash plate 9 of multiple superposed is reduced to swash plate heap in 9.

The horn mouth of the lower end of conically shaped 6 plays a part of spreading material, and the conical floor 7 of the bottom periphery of conically shaped 6 is played The effect of taper swash plate 9 is supported, conical floor 7 and swash plate gland 11 are common to taper swash plate heap progress axially position, each taper The outer gusset 6a of cylinder carries out centralized positioning to taper swash plate heap and carries out radial positioning by key；Material from feed pipe 13 outflow after to Up to the bottom of conically shaped 6, under the influence of centrifugal force into the underlying space of conical floor 7, it is then up through each chassis and leads to Settlement space is formed between hole and swash plate through hole 9a, two taper swash plates 9, it is oblique that concentrated phase material is deposited in each taper because proportion is larger The upper surface of disk 9, and flowed under the action of the centrifugal force to the big end of taper swash plate 9, then depart from taper swash plate 9 from each rotary drum Underflow opening 5a flows out；Light phase material is because the small gap along between taper swash plate 9 of proportion is to overflow, from gusset outside each conically shaped Upper circulation road between 6a is flowed up, finally from each rotary drum overfall 12a outflows on the circumference of overflow outlet cap 12.

The fin of each upper surface of taper swash plate 9 makes to keep equal distance between taper swash plate 9, while by taper swash plate 9 Between space be divided into some deciles, each the upper circulation road between gusset 6a outside conically shaped it is corresponding connection；Due to rotary drum Component is superimposed using multiple relatively thin taper swash plates 9 and constitutes swash plate heap, significantly increases settling area, improves production Amount；Simultaneously because the high speed rotation of drum assembly, using the centrifugation and discharge of concentrated phase material, greatly improves classification effect Rate.

It is connected as a single entity between the centre of overflow outlet cap 12 and lower circumference by the overflow outlet cap conical surface, overflow goes out Multiple jet orifice 12b are evenly distributed with the lid conical surface；It is corresponding with jet orifice 12b sensings position on overflow case top cover 14a At least provided with a visor 17 on circumference.Material enters behind the bottom of conically shaped 6 from feed pipe 13, under the action of the centrifugal force to taper The flowing underneath on chassis 7, feed pipe flinger ring 13a plays the effect for preventing liquid up；But if the charging of feed pipe 13 Flow is excessive, has exceeded swash plate grader D1 disposal ability, material will choke upwards along conically shaped 6, from overflow outlet cap Jet orifice 12b on the conical surface sprays upwards, is mapped on visor 17, operating personnel can with slave unit external observation to this phenomenon, Appropriate reduction feed rate, so as to can both ensure that grader works under larger flow, can avoid flow excess load again.

The armature spindle 2a upper ends of main motor 2 are connected with up-small and down-big deflection cone 2b, and deflection cone 2b lower surface, which is pressed in, to be turned On the bottom wall of drum body 5；It is radial in the inner chamber of conically shaped 6 and the underlying space of conical floor 7 to be uniformly provided with multiple tracks charging The underlying space of taper tube inner chamber and conical floor 7 is separated into multiple independent charging runners by shunting gusset 6b；Charging shunting Gusset 6b is corresponded and in identical phase with the outer gusset 6a of conically shaped, and the lower end of each charging runner is logical with swash plate respectively Hole 9a corresponds connection.Deflection cone 2b can reduce material to resistance during 7 flowing underneath of conical floor, charging shunting gusset Material flow path is divided into multiple units by 6b, the outer gusset 6a of the fin on taper swash plate 9 and conically shaped, is made between each unit mutually It is independent, it is to avoid the disorder in flow field.

Lower disc 8, taper swash plate 9 and the swash plate gland 11 of top layer are provided between the taper swash plate 9 and conical floor 7 of bottom Between be provided with upper disc 10, be respectively equipped with the circumference of lower disc 8 and disc that swash plate through hole 9a is corresponded and is mutually communicated Through hole.The upper and lower surface of upper disc 10 and lower disc 8 can be parallel to each other, can also be in a certain angle, change different angles Upper disc 10 and lower disc 8, thus it is possible to vary the drift angle of taper swash plate 9, to better adapt to different mineral, are substantially increased point The versatility of level machine, reduces equipment investment.Under normal circumstances, the drift angle of grader taper swash plate is 90 ° ~ 120 °, and spacing is 2 ~10mm。

Between the upper port of overflow outlet cap 12 and swash plate gland 11 plate 12c, overflow regulation plate are adjusted provided with overflow Gap is left between 12c inner periphery and the outer wall of conically shaped 6.Overflow adjusts insertion depths of the plate 12c to overflow ducts, certainly Determine the uninterrupted of light phase material, it is to avoid overflow flow velocity causes classification insufficient very much soon, change various sizes of overflow regulation Plate, it is possible to better adapt to different mineral, substantially increases the versatility of grader, reduces equipment investment.

Underflow nozzle 5b is separately installed with rotary drum underflow opening 5a, underflow nozzle 5b inner termination is embedded with wear-resisting lining respectively Cover and be respectively equipped with bushing annular groove 5b2 on 5b1, anti-wearing liner 5b1 inner face.Because concentrated phase material is to underflow nozzle 5b's Abrasion is than larger, and underflow nozzle 5b inner termination sets anti-wearing liner 5b1 to extend underflow nozzle 5b service life；Equipment In use, product has expired ore pulp material in bushing annular groove 5b2, and ore pulp deposit is first subject to the impact of concentrated phase material, shape Into the situation that thing is ground with thing, underflow nozzle 5b service life is further extended.

The bottom cylindrical week of rotary drum body 5 is provided with rotary drum body counterweight tank 5c, the middle part outer step of swash plate gland 11 Provided with gland counterweight tank 11a, rotary drum body counterweight tank 5c and gland counterweight tank 11a respectively with rotary drum body coaxial line, and be T Shape groove.Balancing weight is embedded in rotary drum body counterweight tank 5c and gland counterweight tank 11a, rotary drum body can be easily adjusted Dynamic balancing, reduces the vibration of grader at work, the service life of extension device.

Safety door is installed at the adpting flange of overflow case 14 and underflow case 18 and protects switch SW1, once overflow case 14 depart from underflow case 18, and the normally closed interlock that safety door protects switch SW1 will be switched off.

Rotary drum case inner chamber and rotary drum underflow opening 5a just to position pulse signal detection switch SW2, rotary drum group are installed Part rotates a circle, pulse signal detection switch SW2 will detect with the equal numbers of pulses of rotary drum underflow opening 5a, when part rotary drum Underflow opening is blocked, and the umber of pulse that pulse signal detection switch SW2 is detected will be reduced, during less than setting number, pulse letter Number detection switch SW2 normally open contact will be closed.

The bearing portion of main motor 2 is provided with the temperature signal detection switch PTC1 of detection main motor bearing temperature, temperature During more than setting value, temperature signal detection switch PTC1 normally open contact will turn on.

The upper end cover of main motor and the connecting portion of base are provided with the vibration signal detection switch of detection main motor vibration SW3, when main motor vibration is excessive, vibration signal detection switch SW3 normally open contact will turn on.

As shown in figure 11, the control system of swash plate grader of the present invention, including detection grader main motor bearing temperature The temperature signal detection switch PTC1 and vibration signal detection switch SW3 of detection main motor vibration, in addition to detection grader turn Pulse signal detection the switch SW2 and safety relay SA1, safety relay SA1 of drum underflow opening jet can be from Germany west The sub- 3TK28 safety relays of door.Pulse signal detection switch SW2 is connected to after being connected with very first time relay KT1 coil Between the live wire and zero line of control loop；Vibration signal detection switch SW3 connects after being connected with the second time relay KT2 coil It is connected between the live wire of control loop and zero line；Temperature signal detection switch PTC1 and the 3rd time relay KT3 coil string It is connected to after connection between the live wire of control loop and zero line；Safety relay SA1 power input A1 passes through the F1 of fuse one It is connected with the live wire of control loop, between power input A2 and zero line.

The sender end T1 and receiving terminal IN1 phase short circuits of the signal element of safety relay first, the second letter of safety relay The sender end T2 and receiving terminal IN2 phase short circuits of number unit；The sender end T3 and receiving terminal of 3rd signal element of safety relay The normally closed of very first time relay KT1, the second time relay KT2 and the 3rd time relay KT3 is in series between IN3 to touch Head.

The upper pile crown 41 of safety relay SA1 the first normally closed interlock passes through the F2 of fuse two and the live wire phase of control loop Even, the lower pile crown 42 of the first normally closed interlock of safety relay is connected after being connected with signal lamp LP1 with zero line.

The upper pile crown 43 of first normally open contact of safety relay is connected by the F3 of fuse three with the live wire of control loop, The lower pile crown 44 of first normally open contact is connected with the upper pile crown 23 of the second normally open contact, lower pile crown 24 and the urgency of the second normally open contact After the coil series connection for stopping button SB1, stop button SB2, start button SB3 and main motor control relay CM1, with zero line phase Even；The self-keeping contact CM1-1 of main motor control relay is connected in parallel on start button SB3 two ends.The reset letter of safety relay SR SB4 is in series between number unit 51/52.

Under normal circumstances, the receiving terminal IN1 of the first signal element receives what the sender end T1 of the first signal element was sent Voltage signal, while the voltage letter that the sender end T2 that the receiving terminal IN2 of secondary signal unit receives secondary signal unit is sent Number, then the first normally open contact of safety relay is closed.The receiving terminal IN3 of 3rd signal element receives the 3rd signal element The voltage signal that sender end T3 is sent then safety relay the second normally open contact closure.

First, second and third signal element is in conducting state, and the first normally closed interlock of safety relay disconnects, and signal refers to Show that lamp LP1 does not work.

Press after start button SB3, main motor control relay CM1 coil obtains electric, main motor starts, main motor control Self-keeping contact's CM1-1 adhesive self-insurances of relay.

When pulse signal detection, which switchs SW2, detects the umber of pulse weekly of rotary drum underflow opening less than setting number, pulse Signal detection switch SW2 normally open contact closure, very first time relay KT1 coil obtains electric, very first time relay KT1's Normally closed interlock delay disconnects；When main motor vibration is excessive, vibration signal detection switch SW3 normally open contact is connected, when second Between relay KT2 coil obtain electric, the second time relay KT2 normally closed interlock delay disconnects；When main motor bearing temperature is super When crossing setting value, temperature signal detection switch PTC1 the 3rd time relay KT3 of normally open contact connection coil obtains electric, and the 3rd Time relay KT3 normally closed interlock delay disconnects；As long as the above-mentioned normally closed interlock of first, second and third time relay has one Disconnect, then the receiving terminal IN3 of the 3rd signal element does not receive the voltage signal that the sender end T3 of the 3rd signal element is sent, peace Second normally open contact of all relay disconnects, and main motor control relay CM1 coil losing electricity, main motor is out of service；Safety The first normally closed interlock closure of relay, signal lamp LP1 is lighted, and sends signal.After failture evacuation, SR is pressed SB4, then safety relay reset.

Safety door is installed between swash plate grader D1 overflow case and underflow case and protects switch SW1, safety door is protected and opened The the first normally closed interlock SW1-1 closed is connected between the first signal element T1/IN1 of safety relay, and safety door protects switch Second normally closed interlock SW1-2 is connected between the secondary signal unit T2/IN2 of safety relay.When overflow case and underflow cover When shell is separated, the first normally closed interlock SW1-1 and the second normally closed interlock SW1-2 that safety door protects switch will be switched off, the first signal The receiving terminal IN1 of unit does not receive the voltage signal that the sender end T1 of the first signal element is sent, or secondary signal unit Receiving terminal IN2 do not receive the voltage signal that the sender end T2 of secondary signal unit is sent, then the first of safety relay is normal Open contact disconnects, and main motor is out of service, and synchronous signal indicator lamp LP1 is lighted.

Electrothermal relay Q1 normally closed interlock is also in series between 3rd signal element T3/IN3 of safety relay.When main electricity The load of machine is larger, when there is overcurrent, and electrothermal relay Q1 normally closed interlock disconnects, and can also make the signal list of safety relay the 3rd The receiving terminal IN3 of member does not receive the voltage signal that the sender end T3 of the 3rd signal element is sent, and the second of safety relay is normal Open contact disconnects, and main motor control relay CM1 coil losing electricity, main motor is out of service；The first of safety relay is normally closed Contact closure, signal lamp LP1 is lighted, and sends signal.

The ore pulp grading technology of the present invention, in turn includes the following steps：(1) new ore pulp enters cyclone H1 progress centrifugations point From more than 74 μm grade materials are discharged from cyclone H1 spigot, are returned to after being regrinded through grinding machine Q1 in cyclone H1；(2) it is less than 74 μm of grade materials are discharged from cyclone H1 overfall, after buffered tank T1 cachings, send into swash plate by one-level Pulp pump B1 dense Close machine N1 carries out sedimentation separation；(3) more than 37 μm grade materials are discharged from lamella thickener N1 underflow opening, less than 37 μm grades Material sieves S1 every slag through 0.5mm from lamella thickener N1 overfall discharge and removes big slag；(4) the entrance of the ore pulp after big slag is removed After agitator tank T2 is stirred evenly, 0.8mm filter L1 impurity eliminations are sent into by two grades of Pulp pump B2；(5) the ore pulp after impurity elimination is classified into swash plate Machine D1 is classified, and grader sand setting is discharged from swash plate grader D1 underflow discharging opening, and classifier overflow is from swash plate grader D1 overflow discharging opening is discharged into mine tailing.

It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model Enclose.In addition to the implementation, the present invention can also have the skill of other embodiment, all use equivalent substitutions or equivalent transformation formation Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now There is technology realization, will not be repeated here.

Claims (8)

1. a kind of swash plate overflow pulp hierarchy system, including cyclone, grinding machine, surge tank, one-level Pulp pump, lamella thickener and Two grades of Pulp pumps, the spigot of the cyclone is connected with the entrance of the grinding machine, and the outlet of the grinding machine and new ore pulp are common Into the charging aperture of the cyclone, the overfall of the cyclone is connected with the entrance of the surge tank, the surge tank Outlet is connected with the entrance of the one-level Pulp pump, the outlet of the one-level Pulp pump and the entrance phase of the lamella thickener Even, it is characterised in that：Also include every slag sieve, agitator tank, filter and swash plate grader, the overfall of the lamella thickener and The entrance connection sieved every slag, the screenings outlet sieved every slag is connected with the entrance of the agitator tank, the agitator tank Outlet be connected with the entrance of two grades of Pulp pumps, the outlet of two grades of Pulp pumps is connected with the entrance of the filter, The outlet of the filter is connected with the charging aperture of the swash plate grader, the overflow discharging opening and mine tailing of the swash plate grader Pipeline is connected；The swash plate grader includes rotary drum case and the drum assembly positioned at rotary drum case inner chamber, the rotary drum case Surrounded and formed by superposed overflow case and the underflow case positioned at bottom, the top of the overflow case in fornix shape and Top center is provided with the overflow discharging opening, the underflow by overflow case top closure, the periphery bottom of the overflow case The periphery bottom of case is provided with underflow discharging opening；The center of the overflow case top cover is plugged with feed pipe, the feed pipe The axis of lower end edge drum assembly is inserted into the inner chamber bottom of drum assembly, and the lower end periphery of the feed pipe is provided with prevention liquid The upper feed pipe flinger ring of body；The mid diameter maximum of the drum assembly is evenly distributed with multiple rotary drum underflow openings, institute Rotary drum underflow opening is stated with the underflow discharging opening by runner to be connected；It is evenly distributed with the top circumference of the drum assembly Multiple rotary drum overfalls, the rotary drum overfall is connected with the overflow discharging opening by runner；The bottom of the drum assembly Portion center is fixed on the armature spindle upper end of main motor, and the main motor is fixed on the inner chamber of base, the upper port of the base with The lower end of the underflow case is fixedly connected；The inner chamber of the overflow case is provided with overflow inner casing, and the overflow inner casing envelope exists Inner casing apical ring is connected with the top of the upper periphery of the drum assembly, the overflow inner casing, the inner casing apical ring is located at described The lower outer of rotary drum overfall；It is connected with each other between the overflow inner casing and the overflow case by overflow discharging ring, institute Overflow discharging ring is stated to round along the chuck of the overflow case in the shape of a spiral and minimum position and the overflow discharging opening pair Connect；The inner chamber of the underflow case is provided with underflow inner casing, and the underflow inner casing envelope is in the lower, outer perimeter of the drum assembly, institute The top for stating underflow inner casing is located on the inside of the lower section of the rotary drum underflow opening, leads between the underflow inner casing and the underflow case The interconnection of underflow discharging ring is crossed, the underflow discharging ring rounds and minimum along the chuck of the underflow case in the shape of a spiral Docked with the underflow discharging opening at position.

2. swash plate overflow pulp hierarchy system according to claim 1, it is characterised in that：In the bottom of the drum assembly Heart district domain, which is recessed to be formed in rotary drum cavity up-small and down-big and for isosceles trapezoid section, the rotary drum cavity upwards, is provided with rotary drum Fan, the rotary drum fan is fixed on turning for the main motor in the low taper in the high periphery in center, the center of the rotary drum fan On sub- axle；The inner chamber of the base provided with base inner casing with base coaxial line, the internal perisporium of the base inner casing and base it Between be connected with each other by base gusset, the upper end cover of the main motor stretches out the periphery of motor body and is fixedly connected on institute In the upper port for stating base inner casing, the main motor upper end cover, which is evenly distributed with the circumference of outer rim on multiple motors, covers logical The fresh air inlet that multiple inner chambers with the base inner casing are communicated is respectively equipped with air holes, the lower circumference of the base；The bottom The highest position for flowing discharging ring is less than the upper limb of the underflow inner casing；The lower section of the rotary drum fan is provided with drip tray, described to connect Water pond is in low inside and high outside taper, and the inner edge of the drip tray is provided with the flanging being folded upward at, and the flanging is embedded in the rotary drum In the annular groove of fan lower surface, the periphery of the drip tray is provided with the annular deep gouge to lower recess, and the underflow inner casing is high The middle part for spending direction is provided with spilled water hole, and the spilled water hole communicates with the bottom of the annular deep gouge, the axis of the spilled water hole and The axis of the underflow discharging opening is located in same perpendicular.

3. swash plate overflow pulp hierarchy system according to claim 1, it is characterised in that：The drum assembly includes rotary drum Body, the rotary drum body is the cydariform that upper and lower ends diameter is small, middle part diameter is big；The inner chamber of the rotary drum body is provided with With the swash plate support of rotary drum body coaxial line, the center of the swash plate support is provided with up-small and down-big conically shaped, the feed pipe Lower end be inserted into the inner chamber bottom of the conically shaped；The bottom periphery of the conically shaped is connected with up-small and down-big conical bottom Disk, the lower edge of the conical floor is supported on the inwall of the rotary drum body, the lower section of the conical floor and the rotary drum Left between the bottom of body into material space；The outer wall of the conically shaped is radial to be uniformly provided with the outer gusset of a plurality of conically shaped, Form upper circulation road between the outer gusset of adjacent two conically shaped respectively, the upper end of the upper circulation road respectively with the corresponding rotary drum Overfall is communicated；Multiple up-small and down-big and shape size identical taper swash plate has been sequentially stacked above the conical floor, The upper surface of each taper swash plate is uniformly distributed and highly equal fin provided with multiple tracks is radial, the fin and the taper The outer gusset of cylinder is corresponded and in identical phase, the inner periphery of each taper swash plate is fixed on the conically shaped by keyway On outer gusset；Swash plate through hole is respectively equipped between the lower end of fin described in adjacent two, each swash plate through hole is distributed in same circumference On；The lower circumference of the conical floor is provided with multiple chassis through holes, a pair of the chassis through hole and the swash plate through hole 1 Should and it be mutually communicated；Swash plate gland is pressed with above the taper swash plate of top layer, the periphery of the swash plate gland is fixed on the rotary drum In the upper port of body, the centre of the swash plate gland is protruded upward outside the inner casing apical ring, the swash plate gland it is upper Port is provided with overflow outlet cap, and the centre of the overflow outlet cap is higher than lower circumference, the bottom of the overflow outlet cap Portion's circumference is fixed in the upper port of the swash plate gland, and the bottom that each rotary drum overfall is located at the overflow outlet cap is justified In week and be horizontally directed to outside.

4. swash plate overflow pulp hierarchy system according to claim 3, it is characterised in that：The center of the overflow outlet cap It is connected as a single entity, is evenly distributed with the overflow outlet cap conical surface many by the overflow outlet cap conical surface between position and lower circumference Individual jet orifice；At least provided with a visor on circumference corresponding with jet orifice sensing position on the overflow case top cover.

5. swash plate overflow pulp hierarchy system according to claim 3, it is characterised in that：On the armature spindle of the main motor End is connected with up-small and down-big deflection cone, and the lower surface of the deflection cone is pressed on the bottom wall of the rotary drum body；The taper The radial multiple tracks charging shunting gusset that is uniformly provided with is by conically shaped in the inner chamber of cylinder and the underlying space of the conical floor Chamber and the underlying space of the conical floor are separated into multiple independent charging runners；The charging shunting gusset and the taper The outer gusset of cylinder is corresponded and in identical phase, each lower end for feeding runner respectively with the swash plate through hole one by one Correspondence connection；Between the taper swash plate of bottom and the conical floor be provided with lower disc, the taper swash plate of top layer with Upper disc is provided between the swash plate gland, be respectively equipped with the circumference of the lower disc corresponded with the swash plate through hole and The disc through hole being mutually communicated.

6. swash plate overflow pulp hierarchy system according to claim 3, it is characterised in that：The overflow outlet cap with it is described Plate is adjusted provided with overflow, the inner periphery of overflow regulation plate is outer with the conically shaped between the upper port of swash plate gland Gap is left between wall.

7. swash plate overflow pulp hierarchy system according to claim 3, it is characterised in that：In the rotary drum underflow opening respectively Underflow nozzle is installed, the inner termination of the underflow nozzle is embedded with anti-wearing liner, the inner face of the anti-wearing liner respectively It is respectively equipped with bushing annular groove.

8. the technique that the swash plate overflow pulp hierarchy system any one of a kind of use claim 1 to 7 is classified, according to It is secondary to comprise the following steps：(1) new ore pulp is centrifuged into cyclone, sand setting of more than the 74 μm grade materials from cyclone Mouth discharge, is returned in cyclone after being regrinded through grinding machine；(2) it is less than 74 μm of grade materials to discharge from the overfall of cyclone, it is buffered After tank caching, lamella thickener is pumped into by one-level slurry and carries out sedimentation separation；(3) more than 37 μm grade materials are dense from swash plate The underflow opening discharge of machine, less than 37 μm grade materials are discharged through 0.5mm from the overfall of lamella thickener and screen out big slag every slag； (4) remove after the ore pulp after big slag stirs evenly into agitator tank, 0.8mm filter impurity eliminations are pumped into by two grades of slurries；(5) after impurity elimination Ore pulp is classified into swash plate grader, and grader sand setting is discharged from the underflow discharging opening of swash plate grader, classifier overflow Mine tailing is discharged into from the overflow discharging opening of swash plate grader.