CN113245186A - Automatic air-adjusting type multistage winnowing grain classificator - Google Patents
Automatic air-adjusting type multistage winnowing grain classificator Download PDFInfo
- Publication number
- CN113245186A CN113245186A CN202110547735.6A CN202110547735A CN113245186A CN 113245186 A CN113245186 A CN 113245186A CN 202110547735 A CN202110547735 A CN 202110547735A CN 113245186 A CN113245186 A CN 113245186A
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- Prior art keywords
- main part
- fixed
- fine
- filter screen
- dust exhaust
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Classifications
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- 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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- 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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
-
- 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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- 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
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an automatic air-adjusting type multistage winnowing grain winnowing machine which comprises a main body of the winnowing machine, wherein a transfer box is fixedly arranged on the lower surface of the inner part of the main body of the winnowing machine, a plurality of layers of filter screens are movably arranged in the main body of the winnowing machine, a dust exhaust blade is movably embedded and arranged on one side surface of the main body of the winnowing machine, a stirring blade is movably arranged in the transfer box, a baffle is fixedly arranged above the transfer box in the main body of the winnowing machine, transfer plates are fixedly arranged on the baffle and one side surface of the inner part of the main body of the winnowing machine, and a feeding bin is fixedly embedded and arranged on the upper surface of the main body of the winnowing machine. The automatic air-adjusting type multistage winnowing grain classificator can secondarily remove micro particles which are not removed by the dust removal motor, reduce the micro particles in grains, perform grading treatment on large-particle impurities in the grains, avoid the large-particle impurities from being clamped on the surface of the filter screen, improve the screening efficiency, and avoid the whole vibration of the classificator caused by the vibration of the filter screen.
Description
Technical Field
The invention relates to the field of grain classificators, in particular to an automatic air-adjusting type multistage winnowing grain classificator.
Background
The grain classificator is screening equipment for separating impurities from grains, generally adopts a structural principle of combining screening and air separation, and adopts an air separation mode in the existing air separation grain classificator to blow and exhaust air to a mixture of the grains and bran impurities so as to separate the grains from the bran impurities; there is certain drawback in current selection by winnowing grain preparator when using, and the dust removal motor is when removing dust, and small granule can be blockked by grain, can't be clear away by the dust removal motor completely, and large granule impurity can not stage treatment, can block and make screening efficiency reduce on the filter screen surface, and can drive the whole vibrations of preparator when the filter screen vibrations.
Disclosure of Invention
The invention mainly aims to provide an automatic air-adjusting type multistage winnowing grain classificator which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an automatic multistage selection by winnowing grain preparator of accent wind type, includes the preparator main part, the fixed surface installs the keysets under the preparator main part inside, the inside movable mounting of preparator main part has the multilayer filter screen, dust exhaust blade is installed in the embedding of the activity of a fine selector main part side surface, the inside movable mounting of keysets has the stirring leaf, the preparator main part is inside to be located keysets top fixed mounting has the baffle, the baffle with the equal fixed mounting of the inside side surface of preparator main part has the keysets.
Preferably, the feeding bin is fixedly embedded in the upper surface of the fine selecting machine body, a dust cleaning port is formed in the surface of one side of the fine selecting machine body, the dust cleaning port is fixedly connected with the adapter box, and the feeding port is fixedly arranged on the upper surface of the fine selecting machine body.
Preferably, dust exhaust pipe is installed in the fixed embedding of fine concentrator main part one side surface, dust exhaust blade one end movable mounting has the dust exhaust motor, dust exhaust motor fixed surface installs the fixed bolster, the dust exhaust motor pass through the fixed bolster with dust exhaust pipe fixed connection.
Preferably, the inside fixed mounting of transfer box has the filter screen, selection main part lower surface fixed mounting has gear motor, the filter screen with the equal fixed embedding of selection main part lower surface installs sealed bearing, the stirring leaf passes through sealed bearing respectively with the filter screen with selection main part swing joint, stirring leaf lower extreme runs through selection main part lower surface with gear motor swing joint.
Preferably, a spiral feeding pipe is fixedly embedded in the upper surface of the fine concentrator main body, the lower end of the spiral feeding pipe is movably connected with the adapter box, the lower surface of the fine concentrator main body is located below the multi-layer filter screen and fixedly embedded with a material receiving bin, and a dust exhaust plate is fixedly embedded in the other side surface of the fine concentrator main body.
Preferably, the equal fixed mounting in multilayer filter screen both sides surface has the support column, fixed surface installs shock dynamo under the multilayer filter screen, support column fixed surface installs the telescopic link, the support column passes through the telescopic link with choice machine main part swing joint, telescopic link surface movable mounting has the spring.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, grains are poured into a feeding bin, a dust exhaust motor is controlled to drive a dust exhaust blade to rotate, the grains move on the surface of an adapter plate, so that tiny particles in the grains are sucked out through a dust exhaust pipe, the grains fall into an adapter box from the adapter plate, a speed reduction motor drives a stirring blade to rotate, the grains on the surface of a filter screen are turned over, so that the tiny particles in the grains are screened below the filter screen, the grains are secondarily screened, the tiny particles in the grains are reduced, the screening quality of the grains is improved, meanwhile, the grains are stirred to the lower end of a spiral feeding pipe, the grains are discharged from the upper end of the spiral feeding pipe under the action of the motor and then are discharged to the surfaces of a plurality of layers of filter screens through a feeding port, a vibration motor is controlled to operate, the grains pass through a first layer of filter screen, large-particle impurities are isolated by a first layer of filter screen and are discharged through the dust exhaust plate, and the filtered grains are screened again through a second layer and a third layer of filter screen, inside the cereal that accords with the diameter dropped to the feed bin, the cereal that is not conform to the diameter and impurity discharge through the dust exhaust board of below, make the required cereal of screening that the concentrator main part can be more accurate, with large granule impurity classification, avoid the one deck filter screen to block up, reduce the impurity in the cereal, strengthen the filter effect, the support column is when along with shock dynamo vibrations simultaneously, the vibrations of telescopic link and spring with the support column are reduced, avoid vibrations to transmit the concentrator main part, increase the stability of concentrator main part.
Drawings
FIG. 1 is a schematic vertical sectional view of the overall structure of an automatic air-adjusting type multistage winnowing grain classificator of the invention;
FIG. 2 is a side cut-away view of an automatic air-adjusting type multistage winnowing grain classificator of the present invention;
FIG. 3 is a sectional view of the junction between the supporting rod and the main body of the grain sorting machine of the automatic air-adjusting type multistage winnowing sorting machine of the present invention;
fig. 4 is an enlarged view of the part a in fig. 2 of the automatic air adjusting type multistage winnowing grain classificator.
In the figure: 1. a refiner body; 101. a feeding bin; 102. a dust cleaning port; 103. a dust exhaust pipe; 104. a material receiving bin; 105. a dust exhaust plate; 106. a feed inlet; 2. a transfer box; 201. filtering with a screen; 3. a plurality of layers of filter screens; 301. a support pillar; 302. a telescopic rod; 303. a spring; 304. vibrating a motor; 4. dust exhaust blades; 401. a dust exhaust motor; 402. fixing a bracket; 5. stirring blades; 501. a reduction motor; 502. sealing the bearing; 6. a baffle plate; 601. an adapter plate; 7. a spiral feeding pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, an automatic air-adjusting type multistage winnowing grain classificator comprises a classificator main body 1, an adapter box 2 is fixedly installed on the lower surface inside the classificator main body 1, a multi-layer filter screen 3 is movably installed inside the classificator main body 1, a dust exhaust blade 4 is movably embedded in the surface of one side of the classificator main body 1, a stirring blade 5 is movably installed inside the adapter box 2, a baffle 6 is fixedly installed above the adapter box 2 inside the classificator main body 1, and an adapter plate 601 is fixedly installed on the baffle 6 and the surface of one side inside the classificator main body 1.
The feeding bin 101 is fixedly embedded in the upper surface of the fine separator main body 1, a dust cleaning port 102 is formed in the surface of one side of the fine separator main body 1, the dust cleaning port 102 is fixedly connected with the adapter box 2, and a feeding port 106 is fixedly arranged on the upper surface of the fine separator main body 1; a dust exhaust pipe 103 is fixedly embedded and mounted on the surface of one side of the fine separator main body 1, a dust exhaust motor 401 is movably mounted at one end of a dust exhaust blade 4, a fixed support 402 is fixedly mounted on the surface of the dust exhaust motor 401, and the dust exhaust motor 401 is fixedly connected with the dust exhaust pipe 103 through the fixed support 402; a filter screen 201 is fixedly installed in the transfer box 2, a speed reducing motor 501 is fixedly installed on the lower surface of the fine separator main body 1, sealing bearings 502 are fixedly embedded and installed on the lower surfaces of the filter screen 201 and the fine separator main body 1, the stirring blades 5 are respectively movably connected with the filter screen 201 and the fine separator main body 1 through the sealing bearings 502, the lower ends of the stirring blades 5 penetrate through the lower surface of the fine separator main body 1 and are movably connected with the speed reducing motor 501, grains are secondarily screened, tiny grains in the grains are reduced, and the screening quality of the grains is improved; the upper surface of the fine concentrator main body 1 is fixedly embedded with a spiral feeding pipe 7, the lower end of the spiral feeding pipe 7 is movably connected with the adapter box 2, the lower surface of the fine concentrator main body 1 is positioned below the multilayer filter screens 3 and is fixedly embedded with a collecting bin 104, the other side surface of the fine concentrator main body 1 is fixedly embedded with a dust exhaust plate 105, grains which conform to the diameter fall into the collecting bin 104, and grains and impurities which do not conform to the diameter are discharged through the dust exhaust plate 105 below, so that the fine concentrator main body 1 can more accurately screen the required grains, large granular impurities are graded, one layer of filter screen is prevented from being blocked, the impurities in the grains are reduced, and the filtering effect is enhanced; equal fixed mounting in 3 both sides surfaces of multilayer filter screen has support column 301, fixed surface installs vibrating motor 304 under 3 multilayer filter screens, support column 301 fixed surface installs telescopic link 302, support column 301 passes through telescopic link 302 and concentrator main part 1 swing joint, telescopic link 302 surface movable mounting has spring 303, telescopic link 302 and spring 303 reduce the vibrations of support column 301, avoid vibrations to transmit to concentrator main part 1, increase the stability of concentrator main part 1.
It should be noted that the invention is an automatic air-adjusting multistage winnowing grain classificator, when in use, grain is poured into a feeding bin 101, a dust-removing motor 401 is controlled to drive a dust-removing blade 4 to rotate, the grain moves on the surface of an adapter plate 601, so that tiny particles in the grain are sucked out through a dust-removing pipe 103, the grain falls into an adapter box 2 from the adapter plate 601, a speed-reducing motor 501 drives a stirring blade 5 to rotate, so that the grain on the surface of a filter screen 201 is overturned, so that the tiny particles in the grain are screened below the filter screen 201, the grain is secondarily screened, the tiny particles in the grain are reduced, the screening quality of the grain is improved, meanwhile, the stirring blade 5 stirs the grain to the lower end of a spiral feeding pipe 7, the grain is discharged from the upper end of the spiral feeding pipe 7 under the action of the motor, then is discharged to the surface of a multilayer filter screen 3 through a feeding hole 106, a vibration motor 304 is controlled to operate, the grain passes through a first layer of the filter screen, large granule impurity is isolated by first layer filter screen, discharge through dust exhaust plate 105, filterable cereal passes through second floor and third layer filter screen and screens once more, the cereal that accords with the diameter drops inside receiving bin 104, the cereal that does not accord with the diameter and impurity discharge through dust exhaust plate 105 of below, make the required cereal of screening that fine concentrator main part 1 can be more accurate, with large granule impurity classification, avoid one deck filter screen to block up, reduce the impurity in the cereal, strengthen the filter effect, support column 301 is when shaking along with shock dynamo 304 simultaneously, telescopic link 302 and spring 303 reduce the vibrations of support column 301, avoid shaking and transmit fine concentrator main part 1, increase the stability of fine concentrator main part 1.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an automatic multistage selection by winnowing grain preparator of accent wind type which characterized in that: including preparator main part (1), the inside fixed surface of the lower surface of preparator main part (1) installs adaptor box (2), the inside movable mounting of preparator main part (1) has multilayer filter screen (3), dust exhaust blade (4) are installed in the activity embedding of the surface of one side of preparator main part (1), the inside movable mounting of adaptor box (2) has stirring leaf (5), preparator main part (1) is inside to be located adaptor box (2) top fixed mounting has baffle (6), baffle (6) with the equal fixed mounting in the inside surface of one side of preparator main part (1) has adaptor plate (601).
2. The automatic air-adjusting type multistage winnowing grain classificator according to claim 1, characterized in that: the feeding bin (101) is installed in the fixed surface embedding of fine concentrator main part (1), dust removal mouth (102) have been seted up to fine concentrator main part (1) one side surface, dust removal mouth (102) with adaptor box (2) fixed connection, fixed surface installs feed inlet (106) on fine concentrator main part (1).
3. The automatic air-adjusting type multistage winnowing grain classificator according to claim 1, characterized in that: dust exhaust pipe (103) is installed in the fixed surface embedding of choice machine main part (1) one side, dust exhaust blade (4) one end movable mounting has dust exhaust motor (401), dust exhaust motor (401) fixed surface installs fixed bolster (402), dust exhaust motor (401) pass through fixed bolster (402) with dust exhaust pipe (103) fixed connection.
4. The automatic air-adjusting type multistage winnowing grain classificator according to claim 1, characterized in that: the inside fixed mounting of transfer box (2) has filter screen (201), fine concentrator main part (1) lower fixed surface installs gear motor (501), filter screen (201) with fine concentrator main part (1) lower surface all fixed embedding installs sealed bearing (502), stirring leaf (5) pass through sealed bearing (502) respectively with filter screen (201) with fine concentrator main part (1) swing joint, stirring leaf (5) lower extreme runs through fine concentrator main part (1) lower surface with gear motor (501) swing joint.
5. The automatic air-adjusting type multistage winnowing grain classificator according to claim 1, characterized in that: the dust exhaust device is characterized in that a spiral feeding pipe (7) is installed in the fixed embedding of the upper surface of the fine concentrator main body (1), the lower end of the spiral feeding pipe (7) is movably connected with the adapter box (2), the lower surface of the fine concentrator main body (1) is located a collecting bin (104) is installed in the fixed embedding below the multilayer filter screen (3), and a dust exhaust plate (105) is installed in the fixed embedding of the other side surface of the fine concentrator main body (1).
6. The automatic air-adjusting type multistage winnowing grain classificator according to claim 1, characterized in that: multilayer filter screen (3) both sides surface equal fixed mounting has support column (301), fixed surface installs shock dynamo (304) under multilayer filter screen (3), support column (301) fixed surface installs telescopic link (302), support column (301) pass through telescopic link (302) with selection machine main part (1) swing joint, telescopic link (302) surface movable mounting has spring (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547735.6A CN113245186A (en) | 2021-05-25 | 2021-05-25 | Automatic air-adjusting type multistage winnowing grain classificator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547735.6A CN113245186A (en) | 2021-05-25 | 2021-05-25 | Automatic air-adjusting type multistage winnowing grain classificator |
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| CN113245186A true CN113245186A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110547735.6A Pending CN113245186A (en) | 2021-05-25 | 2021-05-25 | Automatic air-adjusting type multistage winnowing grain classificator |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205628614U (en) * | 2016-03-25 | 2016-10-12 | 河南省麦之源面业有限公司 | Multi -functional grain preparator |
| CN107952685A (en) * | 2017-11-30 | 2018-04-24 | 泗县三虎粮油机械有限公司 | A kind of automatic tune wind type multistage pneumatic separation grains separating machine |
| CN208437228U (en) * | 2017-12-31 | 2019-01-29 | 天津海晟机械设备销售有限公司 | Automatic grain impurity removing and cleaning device |
| CN209034872U (en) * | 2018-10-09 | 2019-06-28 | 济宁市红四方米业有限公司 | A kind of rice multistage picking equipment |
| CN209295622U (en) * | 2018-11-02 | 2019-08-23 | 宁夏中宁县兴顺农林生态开发有限公司 | A kind of high-efficiency grain drying impurity removing equipment |
| CN209531437U (en) * | 2019-02-01 | 2019-10-25 | 山西九穗谷农业开发有限公司 | A kind of cereal dust-extraction unit |
| CN210994773U (en) * | 2019-10-25 | 2020-07-14 | 长春吉隆粮业有限责任公司 | A multistage screening plant for rice processing |
| CN211463445U (en) * | 2019-12-03 | 2020-09-11 | 毕节远大建筑工程开发有限责任公司 | Multi-stage crushing equipment for building materials with dustproof function |
| CN212468865U (en) * | 2020-01-20 | 2021-02-05 | 西双版纳恒宏农业开发有限公司 | Pearl barley stone remover |
-
2021
- 2021-05-25 CN CN202110547735.6A patent/CN113245186A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205628614U (en) * | 2016-03-25 | 2016-10-12 | 河南省麦之源面业有限公司 | Multi -functional grain preparator |
| CN107952685A (en) * | 2017-11-30 | 2018-04-24 | 泗县三虎粮油机械有限公司 | A kind of automatic tune wind type multistage pneumatic separation grains separating machine |
| CN208437228U (en) * | 2017-12-31 | 2019-01-29 | 天津海晟机械设备销售有限公司 | Automatic grain impurity removing and cleaning device |
| CN209034872U (en) * | 2018-10-09 | 2019-06-28 | 济宁市红四方米业有限公司 | A kind of rice multistage picking equipment |
| CN209295622U (en) * | 2018-11-02 | 2019-08-23 | 宁夏中宁县兴顺农林生态开发有限公司 | A kind of high-efficiency grain drying impurity removing equipment |
| CN209531437U (en) * | 2019-02-01 | 2019-10-25 | 山西九穗谷农业开发有限公司 | A kind of cereal dust-extraction unit |
| CN210994773U (en) * | 2019-10-25 | 2020-07-14 | 长春吉隆粮业有限责任公司 | A multistage screening plant for rice processing |
| CN211463445U (en) * | 2019-12-03 | 2020-09-11 | 毕节远大建筑工程开发有限责任公司 | Multi-stage crushing equipment for building materials with dustproof function |
| CN212468865U (en) * | 2020-01-20 | 2021-02-05 | 西双版纳恒宏农业开发有限公司 | Pearl barley stone remover |
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Application publication date: 20210813 |