CN106938786A - A kind of cereal collects machine - Google Patents

A kind of cereal collects machine Download PDF

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Publication number
CN106938786A
CN106938786A CN201610000328.2A CN201610000328A CN106938786A CN 106938786 A CN106938786 A CN 106938786A CN 201610000328 A CN201610000328 A CN 201610000328A CN 106938786 A CN106938786 A CN 106938786A
Authority
CN
China
Prior art keywords
paddy
cereal
air
screen
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610000328.2A
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Chinese (zh)
Inventor
胡克仁
胡凡山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610000328.2A priority Critical patent/CN106938786A/en
Publication of CN106938786A publication Critical patent/CN106938786A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B07B1/522—Cleaning with brushes or scrapers with brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
    • B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24—Gas suction systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

A kind of cereal collects machine, including grain collecting barrel, and grain collecting barrel inner chamber is separated into negative pressure cavity and collection paddy chamber, screen compass screen surface is back and forth cleared up by power-actuated wiper mechanism by screen；Air suction mechanism connects negative pressure cavity, and carries out negative-pressure air-suction to collection paddy chamber through screen；Collect the connection of paddy chamber front end and inhale paddy mouth, cereal enters in collection paddy chamber with air draught air-flow from paddy mouth is inhaled, the closed connection spiral-poker lifter feeding mouth in collection paddy chamber bottom；Cover plate is movably connected in the discharging opening of spiral-poker lifter, and by the closed discharging opening of self gravitation effect.The technical program can eliminate the phenomenon that impurity in cereal blocks sieve aperture, gas channel is from beginning kept clear, and cereal gathering speed is fast, efficiency high, and living load is light, energy consumption is low.

Description

A kind of cereal collects machine
Technical field
Material collection, the equipment of packaging are carried out the present invention relates to a kind of utilization pneumatic means, a kind of cereal is specifically related to and collects machine.
Background technology
With the development of intensive agriculture, applying to the collection of the cereal such as paddy, wheat, corn, jowar, soybean, bagging equipment has new development and progress, Publication No. CN204453878U patent document discloses a kind of harvester, including frame, engine, air blower, connecting tube, engine is connected with air blower, blower, it is characterized in that, materail tube is installed in frame, one end of materail tube is connected by flexible pipe with inhaling valley head, and the other end of materail tube is connected by connecting tube with air blower；The middle part bottom surface opening of materail tube is connected with material-falling hopper, the rear end of opening sets filter screen, the outlet of material-falling hopper is installed by changeover valve, power transmission shaft, roller and stirring vane are provided with changeover valve, stirring vane is fixed together with roller, and on power transmission shaft, power transmission shaft is connected by transmission belt with engine.Harvester in the technical scheme, engine blower, paddy is from valley head suction materail tube is inhaled, intercepted by filter screen, paddy falls into material-falling hopper and entered in changeover valve, under the promotion of stirring vane, exports and packs in changeover valve, the labor intensity of people can be substantially reduced, operating efficiency is significantly improved.But, the technical scheme remain main deficiency be carry out cereal collect operation when, the slightly long impurity being mingled with cereal, the thick piece impurity of such as bar stem, grass cuttings, pod shell, because can not constantly adsorb accumulation in filter screen side by screen meshes with air-flow, impurity can block sieve aperture increase air draught resistance, and air-flow weakens, cereal collection efficiency is reduced, living load increase；Disconnected whole gas channel can be blocked up in the case that impurity is slightly more so that cereal, which collects operation, can not proceed and stop.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of cereal and collects machine, can eliminate the phenomenon that impurity in cereal blocks sieve aperture, and gas channel from beginning keeps clear, and cereal gathering speed is fast, efficiency high, and living load is light, energy consumption is low.
The technical solution adopted by the present invention is：A kind of cereal collects machine, including grain collecting barrel, and grain collecting barrel inner chamber is separated into negative pressure cavity and collection paddy chamber, screen compass screen surface is back and forth cleared up by power-actuated wiper mechanism by screen；Air suction mechanism connects negative pressure cavity, and carries out negative-pressure air-suction to collection paddy chamber through screen；Collect the connection of paddy chamber front end and inhale paddy mouth, cereal enters in collection paddy chamber with air draught air-flow from paddy mouth is inhaled, the closed connection spiral-poker lifter feeding mouth in collection paddy chamber bottom；Cover plate is movably connected in the discharging opening of spiral-poker lifter, and by the closed discharging opening of self gravitation effect.
Air suction mechanism forms negative pressure after starting in grain collecting barrel inner chamber, because cover plate is by the closed discharging opening of spiral-poker lifter of self gravitation effect, outside air enter at paddy mouth in grain collecting barrel from that can only be inhaled, inhaling the cereal near paddy mouth can be brought into by air draught air-flow in collection paddy chamber, and fall into the spiral-poker lifter feeding mouth in Ji Gu bottom of chamber portion, discharge outlet is arrived through the lifting of spiral-poker lifter, removable cover is pushed open and falls into packaging bag；Shred impurity in cereal can with air-flow through screen sieve aperture by air suction mechanism discharge machine outside, thick piece impurity can not be attracted to screen compass screen surface through screen sieve aperture, screen compass screen surface can be back and forth cleared up by power-actuated wiper mechanism, thick piece impurity is scraped off from screen compass screen surface, ensure that screen sieve aperture is not blocked, gas channel is set to remain unobstructed, cereal gathering speed is fast, efficiency high.
Above-mentioned screen is sieve bend, and wiper mechanism includes the brushing piece being arranged in rotating shaft, and power drive rotating shaft makes brushing piece carry out wiper repeatedly to sieve bend compass screen surface, in time scrapes off the impurity adsorbed in sieve bend compass screen surface；Further improvement project is that circular arc is made in power drive rotating shaft（Less than 360o 　）Reciprocally swinging, drives brushing piece to carry out reciprocal wiper back and forth to sieve bend compass screen surface, and cleaning effect is scraped off to the impurity adsorbed in compass screen surface can be more preferable, more thoroughly.
Above-mentioned cover plate is included on the outside of rubber substrate, substrate between the upper and lower every fixed some heavy pieces.Cover plate is used as substrate using rubber-like soft material, cover plate is contributed to play preferably closed effect for spiral-poker lifter discharging opening, prevent that outside air from entering in grain collecting barrel from discharging opening through spiral-poker lifter suck-back, it is ensured that front end, which is inhaled at paddy mouth, there are enough air draught abilities；The heavy piece refers to the larger plates of density, such as iron plate, copper sheet, tin piece, lead flake, it is fixed on the heavy sector-meeting on the outside of substrate to lie prostrate rubber substrate pressure on discharging opening in the presence of self gravitation so that cover plate is more preferable for the closed effect of spiral-poker lifter discharging opening；Some heavy pieces are fixed in the way of interval up and down on the outside of substrate, spiral-poker lifter non-full load only have a small amount of cereal from discharging opening discharge in the case of, cereal can only promote cover plate bottom outwards to turn down to discharge cereal, cover plate top still pushes volt on discharging opening in self gravitation effect, obvious space will not be produced between cover plate and discharging opening, it is avoided that a large amount of outside airs enter the phenomenon for entering grain collecting barrel inner chamber through spiral-poker lifter suck-back from discharging opening space and occurred, so as to ensure that the air draught effect inhaled at paddy mouth is basicly stable.
The negative pressure cavity of the inlet scoop connected set paddy barrel cavity of above-mentioned air suction mechanism, air outlet connection dust arrester.Enter with air-flow through the dust of arc screen sieve aperture, grass cuttings from air outlet and be trapped and separated with air-flow after dust arrester, the air-flow after removing dust again by dust arrester discharge machine outside, operation field dust can be avoided to fly upward, stuffy phenomenon；Dust arrester can be using known a variety of dedusters, such as common cyclone separating deduster.
The present invention has relative to the technological progress that known technology has：One is back and forth to be cleared up screen compass screen surface by power-actuated wiper mechanism by setting so that screen sieve aperture will not be blocked by impurity, and gas channel remains unobstructed, and inhaling air intake air-flow at paddy mouth, by force, cereal gathering speed is fast, efficiency high；Two be to change prevent with changeover valve in known technology outside air and enter grain collecting barrel inner chamber from discharging opening suck-back（Materail tube）Technical scheme, but using removable cover come closed discharging opening, prevent outside air from entering grain collecting barrel inner chamber from discharging opening suck-back.It, which has an advantage that, can reduce the height of cereal gas lift, prime is through gas lift cereal for rear class lifts cereal through spiral-poker lifter, big energy-consuming efficiency is low, by cancelling changeover valve, necessary height with regard to primary airstream lifting can be efficiently reduced, the energy consumption of equipment is reduced, power demand is reduced, operating efficiency is higher；Three are provided with the outside of rubber substrate between the upper and lower every the removable cover of fixed some heavy pieces, can prevent that outside air from entering in grain collecting barrel from discharging opening through spiral-poker lifter suck-back well, it is ensured that inhaling at paddy mouth has good air draught effect.Especially cover plate can be segmented outside turnover from top to bottom, realize bottom turnover opening row paddy, top remains unchanged, and holding is closed to prevent the characteristic of air suck-back, when preferably solving spiral-poker lifter undercapacity lifting cereal, space suck-back of the more outside air easily between cover plate and discharging opening enters grain collecting barrel inner chamber, causes to inhale the technical barrier that the air draught effect at paddy mouth declines to a great extent.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of the invention.
Fig. 2 is the structural representation of second of embodiment of the invention.
Fig. 3 is the sectional view of grain collecting barrel in embodiment illustrated in fig. 2.
Fig. 4 is the structural representation of embodiment illustrated in fig. 2 cover plate.
Fig. 5 is the operating diagram of embodiment illustrated in fig. 2 cover plate.
Fig. 6 is the structural representation of the third embodiment of the invention.
Embodiment
Below, the embodiment of the present invention is described further with reference to accompanying drawing.
Fig. 1 shows that the first cereal collects machine embodiment, including grain collecting barrel 1, and the inner chamber of grain collecting barrel 1 is separated into negative pressure cavity 11 and collection paddy chamber 12, the compass screen surface of screen 2 is back and forth cleared up by power-actuated wiper mechanism 3 by screen 2；Air suction mechanism connects negative pressure cavity 11, and carries out negative-pressure air-suction through 2 pairs of collection paddy chambers 12 of screen；Collect the front end connection of paddy chamber 12 and inhale paddy mouth 4, cereal enters in collection paddy chamber 12 with air draught air-flow from paddy mouth 4 is inhaled, the closed feeding mouth 51 of connection spiral-poker lifter 5 in 12 bottoms of collection paddy chamber；Cover plate 6 is movably connected in the discharging opening 52 of spiral-poker lifter 5, and by the closed discharging opening 52 of self gravitation effect.
After air suction mechanism starts, negative pressure is formed in the inner chamber of grain collecting barrel 1, because cover plate 6 is by the closed discharging opening 52 of spiral-poker lifter 5 of self gravitation effect, outside air can only enter the inner chamber of grain collecting barrel 1 from inhaling at paddy mouth 4, inhaling the cereal near paddy mouth 4 can be brought into by air draught air-flow in collection paddy chamber 12, and the feeding mouth 51 of spiral-poker lifter 5 of the bottom of collection paddy chamber 12 is fallen into, at the lifting of spiral-poker lifter 5 to discharging opening 52, push removable cover 6 open and fall into packaging bag；Screen 2 is horizontal screen, wiper mechanism 3 is made straight reciprocating motion by power drive, brushing piece carries out reciprocal cleaning to the compass screen surface of screen 2 and scrapes off impurity, the sieve aperture of screen 2 is set not blocked all the time by impurity, keep good ventilative property, gas channel remains unobstructed, and cereal gathering speed is fast, efficiency high, can operate with the collection pack operation of the cereal such as paddy, wheat, corn, jowar, soybean.
Fig. 2 shows that second of cereal collects machine embodiment, including grain collecting barrel 1, and the inner chamber of grain collecting barrel 1 is separated into negative pressure cavity 11 and collection paddy chamber 12, the compass screen surface of screen 2 is back and forth cleared up by power-actuated wiper mechanism 3 by screen 2；Air suction mechanism connects negative pressure cavity 11, and carries out negative-pressure air-suction through 2 pairs of collection paddy chambers 12 of screen；Collect the front end connection of paddy chamber 12 and inhale paddy mouth 4, cereal enters in collection paddy chamber 12 with air draught air-flow from paddy mouth 4 is inhaled, the closed feeding mouth 51 of connection spiral-poker lifter 5 in 12 bottoms of collection paddy chamber；Cover plate 6 is movably connected in the discharging opening 52 of spiral-poker lifter 5, and by the closed discharging opening 52 of Gravitative Loads；Screen 2 is sieve bend, wiper mechanism 3 includes the brushing piece 32 being arranged in rotating shaft 31, power drive rotating shaft 31 swings back and forth as circular arc, drive brushing piece 32 to carry out back and forth reciprocal wiper to the inner surface of arc screen 2 to clear up, the impurity of absorption thereon is scraped off, the sieve aperture of arc screen 2 is not blocked all the time by impurity, good ventilative property is kept, gas channel remains unobstructed, and cereal gathering speed is fast, efficiency high.
Fig. 3 is the sectional view of grain collecting barrel in embodiment illustrated in fig. 2, and the inner chamber of grain collecting barrel 1 is separated into negative pressure cavity 11 and collection paddy chamber 12 by arc screen 2, is driven brushing piece 32 to clear up the compass screen surface of arc screen 2 repeatedly by power-actuated rotating shaft 31；Air suction mechanism 7 connects negative pressure cavity 11, and carries out negative-pressure air-suction through 2 pairs of collection paddy chambers 12 of arc screen；Collect the closed feeding mouth of connection spiral-poker lifter 5 in 12 bottoms of paddy chamber；Power drive rotating shaft 31 swings back and forth as circular arc, its scope swung is only upper part circumference, brushing piece 32 carries out back and forth reciprocal wiper to the inner surface of arc screen 2 and cleared up, can be more preferable to the cleaning effect of impurity, it is also beneficial to the feeding mouth of spiral-poker lifter 5 and the compact connection of collection paddy chamber 12, the necessary height of primary airstream lifting is effectively reduced, the energy consumption of equipment is reduced.
Fig. 4 is the structural representation of embodiment illustrated in fig. 2 cover plate, cover plate includes rubber substrate 61, the outside of substrate 61 is between the upper and lower every fixed some heavy pieces 62, under the Action of Gravity Field of heavy piece 62, rubber substrate 61 can play preferably closed effect to spiral-poker lifter discharging opening, prevent that outside air from entering grain collecting barrel inner chamber from discharging opening suck-back.
Fig. 5 is the operating diagram of embodiment illustrated in fig. 2 cover plate, and heavy piece 62 is fixed on the outside of substrate 61, the semi-load of spiral-poker lifter 5 in the way of interval up and down（Undercapacity）Operation, cereal only promotes the bottom of cover plate 6 outwards to turn down to discharge cereal, the top of cover plate 6 still pushes volt on discharging opening 52 in self gravitation effect, obvious space will not be produced between cover plate 6 and discharging opening 52, it is avoided that a large amount of outside airs enter the phenomenon for entering grain collecting barrel inner chamber through the suck-back of spiral-poker lifter 5 from the space of discharging opening 52 and occurred, so as to ensure that the air draught effect inhaled at paddy mouth is basicly stable.Certainly, during spiral-poker 5 full-load run of lifter, spiral-poker lifter 5 fills up cereal in whole inner chamber, although cover plate 6 is opened completely, but outside air is hampered by the filler in the inner chamber of spiral-poker lifter 5, grain collecting barrel inner chamber can not be entered from the suck-back of discharging opening 52, the air draught effect at front suction paddy mouth is not interfered with.
Fig. 6 is the structural representation of the third embodiment of the invention.Including the power in frame 10 and grain collecting barrel 1, the inner chamber of grain collecting barrel 1 is separated into negative pressure cavity and collection paddy chamber by arc screen 2, and the compass screen surface of screen 2 is back and forth cleared up by power-actuated wiper mechanism 3；Air suction mechanism 7 connects negative pressure cavity, and carries out negative-pressure air-suction through 2 pairs of collection paddy chambers of screen；Collect the connection of paddy chamber front end and inhale paddy mouth 4, cereal enters in collection paddy chamber with air draught air-flow from paddy mouth 4 is inhaled, the closed feeding mouth of connection spiral-poker lifter 5 in collection paddy chamber bottom；Cover plate 6 is movably connected in the discharging opening of spiral-poker lifter 5, and by the closed discharging opening of self gravitation effect；The negative pressure cavity of inlet scoop connection grain collecting barrel 1 inner chamber of air suction mechanism 7, air outlet connects dust arrester 8, enter with air-flow through the dust of the sieve aperture of arc screen 2, grass cuttings from air outlet and be trapped and separated with air-flow after dust arrester 8, air-flow after removing dust is discharged outside machine by dust arrester 8, operation field dust can be avoided to fly upward, stuffy phenomenon；The discharge outlet of spiral-poker lifter 5 is additionally provided with bagger 9, is easy to the cereal for discharging discharging opening to access packaging bag；The lower section of frame 10 is provided with by power-actuated road wheel 11, road wheel 11 can drive body movement to advance and deflecting walking, be conducive to improving cereal collection efficiency, save manpower, cereal collection function is widely used in the places such as airing field, stacking field, warehouse and move back and forth operation.

Claims (5)

1. a kind of cereal collects machine, it is characterised in that including grain collecting barrel, grain collecting barrel inner chamber is separated into negative pressure cavity and collection paddy chamber by screen, and screen compass screen surface is back and forth cleared up by power-actuated wiper mechanism；Air suction mechanism connects negative pressure cavity, and carries out negative-pressure air-suction to collection paddy chamber through screen；Collect the connection of paddy chamber front end and inhale paddy mouth, cereal enters in collection paddy chamber with air draught air-flow from paddy mouth is inhaled, the closed connection spiral-poker lifter feeding mouth in collection paddy chamber bottom；Cover plate is movably connected in the discharging opening of spiral-poker lifter, and by the closed discharging opening of self gravitation effect.
2. a kind of cereal as claimed in claim 1 collects machine, it is characterised in that screen is sieve bend, wiper mechanism includes the brushing piece being arranged in rotating shaft, and power drive axis of rotation makes brushing piece carry out wiper repeatedly to sieve bend compass screen surface.
3. a kind of cereal as claimed in claim 2 collects machine, it is characterised in that circular arc reciprocally swinging is made in power drive rotating shaft, brushing piece is driven to carry out reciprocal wiper back and forth to sieve bend compass screen surface.
4. a kind of cereal as described in claim any one of 1-3 collects machine, it is characterised in that cover plate is included on the outside of rubber substrate, substrate between the upper and lower every fixed some heavy pieces.
5. a kind of cereal as claimed in claim 4 collects machine, it is characterised in that the negative pressure cavity of the inlet scoop connected set paddy barrel cavity of air suction mechanism, air outlet connection dust arrester.
CN201610000328.2A 2016-01-03 2016-01-03 A kind of cereal collects machine Pending CN106938786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610000328.2A CN106938786A (en) 2016-01-03 2016-01-03 A kind of cereal collects machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610000328.2A CN106938786A (en) 2016-01-03 2016-01-03 A kind of cereal collects machine

Publications (1)

Publication Number Publication Date
CN106938786A true CN106938786A (en) 2017-07-11

Family

ID=59469815

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610000328.2A Pending CN106938786A (en) 2016-01-03 2016-01-03 A kind of cereal collects machine

Country Status (1)

Country Link
CN (1) CN106938786A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108502219A (en) * 2018-04-20 2018-09-07 安陆市农业机械科学研究院 Grain storage machine of unloading in succession
CN112224915A (en) * 2020-08-28 2021-01-15 苏州科舵工程技术有限公司 Full-automatic powder conveying equipment
CN113682822A (en) * 2021-08-09 2021-11-23 廖秋妹 Equipment is collected to domestic corn
CN113750612A (en) * 2021-09-18 2021-12-07 陈葆新 Differential pressure filter capable of automatically backwashing and discharging sewage
CN117142064A (en) * 2023-10-30 2023-12-01 华能左权煤电有限责任公司 Coal pile is with buggy conveyer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108502219A (en) * 2018-04-20 2018-09-07 安陆市农业机械科学研究院 Grain storage machine of unloading in succession
CN112224915A (en) * 2020-08-28 2021-01-15 苏州科舵工程技术有限公司 Full-automatic powder conveying equipment
CN113682822A (en) * 2021-08-09 2021-11-23 廖秋妹 Equipment is collected to domestic corn
CN113682822B (en) * 2021-08-09 2023-12-08 台州市美琪乐工艺品有限公司 Household rice harvesting equipment
CN113750612A (en) * 2021-09-18 2021-12-07 陈葆新 Differential pressure filter capable of automatically backwashing and discharging sewage
CN117142064A (en) * 2023-10-30 2023-12-01 华能左权煤电有限责任公司 Coal pile is with buggy conveyer
CN117142064B (en) * 2023-10-30 2024-01-02 华能左权煤电有限责任公司 Coal pile is with buggy conveyer

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Application publication date: 20170711

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