CN104437778A - Organic fertilizer particle crusher - Google Patents
Organic fertilizer particle crusher Download PDFInfo
- Publication number
- CN104437778A CN104437778A CN201410827274.8A CN201410827274A CN104437778A CN 104437778 A CN104437778 A CN 104437778A CN 201410827274 A CN201410827274 A CN 201410827274A CN 104437778 A CN104437778 A CN 104437778A
- Authority
- CN
- China
- Prior art keywords
- pulverization cylinder
- organic fertilizer
- blade
- valve
- cutter shaft
- 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.)
- Granted
Links
- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 title claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 29
- 238000010298 pulverizing process Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 11
- 239000000843 powder Substances 0.000 abstract description 7
- 210000003608 Feces Anatomy 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000010871 livestock manure Substances 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000003179 granulation Effects 0.000 description 5
- 238000005469 granulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000903 blocking Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010828 animal waste Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 241000195940 Bryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 231100000614 Poison Toxicity 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 235000012970 cakes Nutrition 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000813 microbial Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- 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
- B07B1/55—Cleaning with fluid jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C2018/162—Shape or inner surface of shredder-housings
Abstract
The invention discloses an organic fertilizer particle crusher which comprises a frame, an anti-blocking device, a crushing cylinder and a motor. The crushing cylinder is mounted on the frame, the motor is mounted at the top of the crushing cylinder, the anti-blocking device is mounted on one side of the crushing cylinder, a feeding port is formed in the other side of the crushing cylinder and positioned in the upper side wall of the crushing cylinder, a cylindrical crushing cavity and a conical discharging cavity are formed in the crushing cylinder from top to bottom, a spindle and a cutter shaft are arranged in the crushing cavity, the spindle is connected with the motor, the cutter shaft is connected at the lower end of the spindle in a sleeving manner, a plurality of blades are mounted on the cutter shaft, a small opening is formed in the lower end of the discharging cavity, a discharging port is formed in the bottom of the discharging cavity, and a filtering screen is arranged in the discharging cavity. The organic fertilizer particle crusher is specially developed for animal manure organic fertilizers, fermented excrement organic fertilizers can be crushed, the organic fertilizer particle crusher is small in size and convenient to move, noise in the crushing process can be reduced, and the crusher does not easily adhere powder and is not easily blocked by the aid of the anti-blocking device.
Description
[technical field]
The present invention relates to organic fertilizer production equipment technical field, particularly the technical field of organic fertilizer particles pulverizer.
[background technology]
Fertilizer specially refers to (comprise animal wastes with various animal waste; Animal processing waste) and plant residue (cake fertilizer class; Crop material; Fallen leaves; Deadwood; The peat composed of rotten mosses etc.), adopt the treatment technology that physics, chemistry, biology or three have concurrently, through certain processing technology, the class fertilizer that the harmful substance eliminated wherein reaches innoxious standard and formed.Fertilizer is mainly derived from plant or animal, and imposing on soil to provide plant nutrient is the carbonaceous material of its major function.Through biological substance, animals and plants discarded object, plant residue processing, eliminate poisonous and harmful substance wherein, be rich in a large amount of benefit materials and abundant nutrient.Can not only provide full nutrition for crops, and fertilizer efficiency is long, can increases and upgrade the soil organism, promote microbial reproduction, improving physicochemical property and the biologically active of soil, is the Main Nutrients of pollution-free food production.
Fertilizer pulverizer is one of requisite equipment during organic commercial fertilizer industrialization is produced, fertilizer needs to carry out fragmentation, refinement, be convenient to plant absorption, in the prill manufacturing process of organic fertilizer, fertilizer pulverizer structural shape directly affects the quality of fertilizer and the production efficiency of fertilizer.Effect comprises: comminuted starting materials, and the defective or irregular fertiliser granulates of filtering is pulverized again, granulation again, especially in this step, if pulverizing is insufficient, because fertiliser granulates hardness is higher, adding to after in raw material, be again extruded in the process of granulation, causing particle to chap, fragmentation etc. problem, then have impact on the effect of fertilizer granulation further, traditional fertilizer facility for granulating is difficult to reach good crushing effect, and granulation yields poorly, grained matte, granulation cost is high.Meanwhile, fertilizer process equipment easily blocks in process of production, maintenance difficult, for strengthening crushing effect, then will increase rotating speed, causes pulverizer to shake severe, and noise is very large, and in fertilizer process, dust is also very large, and environmental pollution is serious.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, and propose a kind of organic fertilizer particles pulverizer, volume is little, conveniently moving, fully pulverizes fertilizer, effectively can reduce the noise in crushing process, not easily tie powder blocking in use procedure, substantially increase operating efficiency.
For achieving the above object, the present invention proposes a kind of organic fertilizer particles pulverizer, comprise frame, preventing clogging up device, pulverization cylinder and motor, described frame is provided with pulverization cylinder, pulverization cylinder top is provided with motor, the side of pulverization cylinder is provided with preventing clogging up device, and the opposite side of pulverization cylinder has charging aperture, and charging aperture is positioned at the upper side wall of pulverization cylinder; Described pulverization cylinder inside is divided into crushing chamber and discharging chamber from top to bottom, and crushing chamber is cylindrical cavity, and be provided with main shaft, cutter shaft in crushing chamber, main shaft is connected with motor, and the lower end of main shaft is socketed with cutter shaft, cutter shaft is provided with some blades; Described discharging chamber is conical cavity, and discharging chamber lower ending opening is less, and discharging chamber bottom opening is discharging opening; Also filter screen is provided with in described discharging chamber.
As preferably, described preventing clogging up device comprises pressure gas source, magnetic valve, appendix, valve.
As preferably, described pulverization cylinder sidewall is provided with opening, and valve is arranged in the opening of pulverization cylinder sidewall, and valve is positioned at bottom crushing chamber; The quantity of valve can have multiple.
As preferably, described valve aims at filter screen, and pressure gas source is connected with valve by appendix, and appendix is also provided with magnetic valve.
As preferably, described filter screen is arranged on the junction in crushing chamber and discharging chamber, and filter screen is arc surface.
As preferably, described blade is hinged on cutter shaft, and blade is circle distribution, and the longitudinal quantity of the blade on cutter shaft has four rows at least, and the same circumferentially quantity of the blade on cutter shaft has four at least.
As preferably, the end of described blade is provided with blade, and blade comprises axial blade and radial blade.
As preferably, be provided with insulation material layer, be provided with acoustic material in insulation material layer in the barrel of described pulverization cylinder, acoustic material can be sound-proof damping felt; The crushing chamber inwall of pulverization cylinder is provided with one deck rib tooth.
As preferably, described rib tooth is circumferentially uniformly distributed, and rib tooth is longitudinally arranged, and the crown direction of rib tooth is consistent, and the crown of rib tooth is arranged clockwise.
Beneficial effect of the present invention: the present invention develops for animal manure fertilizer specially, dejection organic fertilizer after fermentation can be pulverized, volume is little, conveniently moving, rotate blade and pulverization cylinder in rib tooth fully can pulverize fertilizer, the insulation material layer of the barrel of pulverization cylinder, effectively can reduce the noise in crushing process; Be provided with preventing clogging up device, in pulverizer, pass into compressed air, not easily tie powder blocking in use procedure, substantially increase operating efficiency.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of organic fertilizer particles pulverizer of the present invention;
Fig. 2 is the cross-sectional schematic of a kind of organic fertilizer particles pulverizer of the present invention;
Fig. 3 is the sectional view on the other direction of a kind of organic fertilizer particles pulverizer of the present invention.
In figure: 1-frame, 2-preventing clogging up device, 21-pressure gas source, 22-magnetic valve, 23-appendix, 24-valve, 3-pulverization cylinder, 31-crushing chamber, 32-discharging chamber, 4-motor, 5-charging aperture, 6-main shaft, 7-cutter shaft, 8-blade, 81-blade, 9-insulation material layer, 10-rib tooth, 11-discharging opening, 12-filter screen.
[detailed description of the invention]
Consult Fig. 1, the present invention, comprise frame 1, preventing clogging up device 2, pulverization cylinder 3 and motor 4, described frame 1 is provided with pulverization cylinder 3, pulverization cylinder 3 top is provided with motor 4, the side of pulverization cylinder 3 is provided with preventing clogging up device 2, and the opposite side of pulverization cylinder 3 has charging aperture 5, and charging aperture 5 is positioned at the upper side wall of pulverization cylinder 3; Described pulverization cylinder 3 inside is divided into crushing chamber 31 and discharging chamber 32 from top to bottom, crushing chamber 31 is cylindrical cavity, and be provided with main shaft 6, cutter shaft 7 in crushing chamber 31, main shaft 6 is connected with motor 4, the lower end of main shaft 6 is socketed with cutter shaft 7, cutter shaft 7 is provided with some blades 8; Described discharging chamber 32 is conical cavity, and discharging chamber 32 lower ending opening is less, and discharging chamber 32 bottom opening is discharging opening 11; Filter screen 12 is also provided with in described discharging chamber 32.Described preventing clogging up device 2 comprises pressure gas source 21, magnetic valve 22, appendix 23, valve 24.Described pulverization cylinder 3 sidewall is provided with opening, and valve 24 is arranged in the opening of pulverization cylinder 3 sidewall, and valve 24 is positioned at bottom crushing chamber 31; The quantity of valve 24 can have multiple.Described valve 24 aims at filter screen 12, and pressure gas source 21 is connected with valve 24 by appendix 23, and appendix is also provided with magnetic valve 22.Described filter screen 12 is arranged on the junction in crushing chamber 31 and discharging chamber 32, and filter screen 12 is arc surface.Described blade 8 is hinged on cutter shaft 7, and blade 8 is circle distribution, and the longitudinal quantity of blade 8 on cutter shaft 7 has four rows at least, and the same circumferentially quantity of the blade 8 on cutter shaft 7 has four at least.The end of described blade 8 is provided with blade 81, and blade 81 comprises axial blade and radial blade.Be provided with insulation material layer 9 in the barrel of described pulverization cylinder 3, insulation material layer 9 is provided with acoustic material, and acoustic material can be sound-proof damping felt; Crushing chamber 31 inwall of pulverization cylinder 3 is provided with one deck rib tooth 10.Described rib tooth 10 is circumferentially uniformly distributed, and rib tooth 10 is longitudinally arranged, and the crown direction of rib tooth 10 is consistent, and the crown of rib tooth 10 is arranged clockwise.
The course of work of the present invention:
A kind of organic fertilizer particles pulverizer of the present invention in the course of the work, open motor 4, the cutter shaft 7 that pulverization cylinder is 3 li High Rotation Speed under the driving of motor 4, blade 8 is along with cutter shaft 7 High Rotation Speed, fertilizer adds granular mill from charging aperture 11, under the effect of blade 8, fertilizer is cut to be pulverized, organic fertilizer particles is constantly thrown on the rib tooth 10 of pulverization cylinder 3 inwall, the crown that organic fertilizer particles encounters rib tooth 10 is constantly broken, powder after pulverizing is fallen in the discharging chamber 32 of pulverization cylinder 3, through the filtration of filter screen 12, do not reach the particle pulverizing requirement to be tackled by filter screen 12, when powder accumulation on filter screen 12, the air-flow of magnetic valve 22 controlled pressure source of the gas 21, compressed air blows to filter screen 12 by appendix 23, the powder getting lodged in filter screen 12 mesh is blown off, prevent from blocking filter screen 12.
The present invention develops for animal manure fertilizer specially, dejection organic fertilizer after fermentation can be pulverized, volume is little, conveniently moving, rotate blade 8 and pulverization cylinder 3 in rib tooth 10 fully can pulverize fertilizer, the insulation material layer 9 of the barrel of pulverization cylinder 3, effectively can reduce the noise in crushing process; Be provided with preventing clogging up device 2, in pulverizer, pass into compressed air, not easily tie powder blocking in use procedure, substantially increase operating efficiency.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (9)
1. an organic fertilizer particles pulverizer, it is characterized in that: comprise frame (1), preventing clogging up device (2), pulverization cylinder (3) and motor (4), described frame (1) is provided with pulverization cylinder (3), pulverization cylinder (3) top is provided with motor (4), the side of pulverization cylinder (3) is provided with preventing clogging up device (2), the opposite side of pulverization cylinder (3) has charging aperture (5), and charging aperture (5) is positioned at the upper side wall of pulverization cylinder (3); Described pulverization cylinder (3) inside is divided into crushing chamber (31) and discharging chamber (32) from top to bottom, crushing chamber (31) is cylindrical cavity, main shaft (6), cutter shaft (7) is provided with in crushing chamber (31), main shaft (6) is connected with motor (4), the lower end of main shaft (6) is socketed with cutter shaft (7), cutter shaft (7) is provided with some blades (8); Described discharging chamber (32) is conical cavity, and discharging chamber (32) lower ending opening is less, and discharging chamber (32) bottom opening is discharging opening (11); Filter screen (12) is also provided with in described discharging chamber (32).
2. a kind of organic fertilizer particles pulverizer as claimed in claim 1, is characterized in that: described preventing clogging up device (2) comprises pressure gas source (21), magnetic valve (22), appendix (23), valve (24).
3. a kind of organic fertilizer particles pulverizer as claimed in claim 2, it is characterized in that: described pulverization cylinder (3) sidewall is provided with opening, valve (24) is arranged in the opening of pulverization cylinder (3) sidewall, and valve (24) is positioned at crushing chamber (31) bottom; The quantity of valve (24) can have multiple.
4. a kind of organic fertilizer particles pulverizer as claimed in claim 3, it is characterized in that: described valve (24) aims at filter screen (12), pressure gas source (21) is connected with valve (24) by appendix (23), appendix is also provided with magnetic valve (22).
5. a kind of organic fertilizer particles pulverizer as claimed in claim 1, is characterized in that: described filter screen (12) is arranged on the junction in crushing chamber (31) and discharging chamber (32), and filter screen (12) is arc surface.
6. a kind of organic fertilizer particles pulverizer as claimed in claim 1, it is characterized in that: described blade (8) is hinged on cutter shaft (7), blade (8) is circle distribution, blade (8) longitudinal quantity on cutter shaft (7) has four rows at least, and the same circumferentially quantity of blade (8) on cutter shaft (7) has four at least.
7. a kind of organic fertilizer particles pulverizer as claimed in claim 1, is characterized in that: the end of described blade (8) is provided with blade (81), and blade (81) comprises axial blade and radial blade.
8. a kind of organic fertilizer particles pulverizer as claimed in claim 1, it is characterized in that: in the barrel of described pulverization cylinder (3), be provided with insulation material layer (9), insulation material layer is provided with acoustic material in (9), and acoustic material can be sound-proof damping felt; Crushing chamber (31) inwall of pulverization cylinder (3) is provided with one deck rib tooth (10).
9. a kind of organic fertilizer particles pulverizer as claimed in claim 8, it is characterized in that: described rib tooth (10) is circumferentially uniformly distributed, rib tooth (10) is longitudinally arranged, the crown direction of rib tooth (10) is consistent, and the crown of rib tooth (10) is arranged clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827274.8A CN104437778B (en) | 2014-12-26 | 2014-12-26 | A kind of organic fertilizer particles pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827274.8A CN104437778B (en) | 2014-12-26 | 2014-12-26 | A kind of organic fertilizer particles pulverizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104437778A true CN104437778A (en) | 2015-03-25 |
| CN104437778B CN104437778B (en) | 2017-10-03 |
Family
ID=52884984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827274.8A Active CN104437778B (en) | 2014-12-26 | 2014-12-26 | A kind of organic fertilizer particles pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104437778B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395814A (en) * | 2018-12-20 | 2019-03-01 | 重庆七彩虹新材料技术有限公司 | A kind of powdery paints mixing vibration sieve |
| CN110523487A (en) * | 2019-08-30 | 2019-12-03 | 南京宁粮生物工程有限公司 | A kind of organic fertilizer process units with screening function |
| CN110102398B (en) * | 2019-05-10 | 2020-06-09 | 江苏吉达机械制造有限公司 | Novel blowing device of powder concentrator |
| CN112221608A (en) * | 2020-09-17 | 2021-01-15 | 余华强 | Soil restoration pre-crushing treatment device for garden maintenance |
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| CN103537348A (en) * | 2013-10-23 | 2014-01-29 | 青岛嘉禾丰肥业有限公司 | Fertilizer crusher with vibrating screen |
| CN204380782U (en) * | 2014-12-26 | 2015-06-10 | 朱明江 | A kind of organic fertilizer particles pulverizer |
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| CN2340503Y (en) * | 1998-10-15 | 1999-09-29 | 东莞市塘厦三威电器制造厂 | Combined cutting tool of paper breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395814A (en) * | 2018-12-20 | 2019-03-01 | 重庆七彩虹新材料技术有限公司 | A kind of powdery paints mixing vibration sieve |
| CN109395814B (en) * | 2018-12-20 | 2020-09-08 | 重庆七彩虹新材料技术有限公司 | Powder coating mixes shale shaker |
| CN110102398B (en) * | 2019-05-10 | 2020-06-09 | 江苏吉达机械制造有限公司 | Novel blowing device of powder concentrator |
| CN110523487A (en) * | 2019-08-30 | 2019-12-03 | 南京宁粮生物工程有限公司 | A kind of organic fertilizer process units with screening function |
| CN112221608A (en) * | 2020-09-17 | 2021-01-15 | 余华强 | Soil restoration pre-crushing treatment device for garden maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104437778B (en) | 2017-10-03 |
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