CN111495531A - High-moisture silt and waste mud processing equipment - Google Patents
High-moisture silt and waste mud processing equipment Download PDFInfo
- Publication number
- CN111495531A CN111495531A CN202010331594.XA CN202010331594A CN111495531A CN 111495531 A CN111495531 A CN 111495531A CN 202010331594 A CN202010331594 A CN 202010331594A CN 111495531 A CN111495531 A CN 111495531A
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- China
- Prior art keywords
- crushing
- screen cylinder
- thick bamboo
- machine body
- sieve section
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Classifications
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- 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
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
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- 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
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
-
- 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
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- 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
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
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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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
- Treatment Of Sludge (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to the technical field of silt and waste mud processing machines, in particular to high-moisture silt and waste mud processing equipment. The structure of the machine comprises a machine body, a controller arranged on the front side of the machine body, a motor box arranged on one side of the machine body and a processing cavity arranged in the machine body, the other side of the machine body is provided with an integrated material storage groove, the bottom of the processing cavity is provided with a discharge valve connected with a controller, the bottom of the machine body is provided with a plurality of universal wheels, the upper side of the material storage groove is provided with a fluid pump, the fluid pump is respectively connected with the bottom of the material storage groove and the processing cavity body through a conveying pipe, a connecting shaft tube is fixedly arranged at the left side of the machine body, a motor connected with and controlled by a controller is arranged in the motor box, the pivot runs through to be installed inside the processing cavity, utilizes and knife tackle at different levels and crushing roller to carry out multistage screening shredding to the silt mud of an external crushing sieve section of thick bamboo and an interior crushing sieve section of thick bamboo fluid form, can reduce coarse granule in the silt mud, can improve mummification efficiency, mummification effect and utilize the standardization.
Description
Technical Field
The invention relates to the technical field of utilization machinery of silt and waste mud, in particular to high-moisture silt and waste mud processing equipment.
Background
Sludge and sludge are the main solid waste sources of modern cities. Especially in developed areas, the production amount is huge, if the treatment is not enough, serious harm is caused, precious land resources are phagocytosed, and environmental pollution is caused. The production amount of silt and waste mud is increased day by day and the sludge treatment capacity is seriously insufficient, the treatment capacity is seriously lagged behind and can be continuously developed, a sharp contradiction is formed, a large amount of wet mud is transported outside at will, but is also a renewable resource at the same time, can be used as a raw material for sintering treatment, has the effects of producing and manufacturing novel wall bricks and the like with other raw material processes, and the silt resource utilization technology becomes the urgent need of the current solid waste industry; the existing silt and waste mud are mostly protoids in a flow state, the silt and waste mud contain more coarse ore particles, the coarse ore particles need to be crushed, the unified standard is reached, the semi-solid or solid mud block effect can be better after the semi-solid or solid mud block effect is converted, the secondary processing and utilization of silt and waste mud drying are facilitated, the silt and waste mud water is simply crushed and stirred at present, or the silt and waste mud water is only subjected to simple dehydration and drying treatment, effective processing is not carried out on the silt and waste mud water, and the required standard cannot be reached.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide high-moisture silt processing equipment to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-moisture silt processing device comprises a machine body, a controller arranged on the front side of the machine body, a motor box arranged on one side of the machine body, and a processing cavity arranged inside the machine body, wherein an integrated material storage groove is arranged on the other side of the machine body, a discharge valve connected with the controller is arranged at the bottom of the processing cavity, a plurality of universal wheels are arranged at the bottom of the machine body, a fluid pump is arranged at the upper side of the material storage groove and is respectively connected with the bottom of the material storage groove and the processing cavity through a conveying pipe, a connecting shaft pipe is fixedly arranged on the left side of the machine body, a motor connected with and controlled by the controller is arranged in the motor box, a motor shaft is connected with a rotating shaft, the rotating shaft is penetratingly arranged inside the processing cavity, an outer crushing screen cylinder and an inner crushing screen cylinder are rotatably connected inside the processing cavity, the inner crushing screen cylinder is arranged on the inner side of the outer crushing screen cylinder, the utility model provides a crushing sieve section of thick bamboo fixed cover is located in the pivot, the terminal cover of pivot is equipped with crushing roller, inside crushing sieve section of thick bamboo in crushing roller is located, the epaxial sea cover in pivot is equipped with planetary gear, the welding of planetary gear outside has the tripod, planetary gear passes through the tripod and is connected with an interior crushing sieve section of thick bamboo, connecting shaft tube one end is connected with outer crushing sieve section of thick bamboo and interior crushing sieve section of thick bamboo left end shaft respectively, can take into interior crushing sieve section of thick bamboo with the material that holds in the silo and filter to outer crushing sieve section of thick bamboo is different with interior crushing sieve section of thick bamboo rotation rate under the planetary gear effect, sets up multistage screening processing effect.
The further improvement is that: the one-level crushing knife tackle that distributes that staggers relatively has set firmly between an outer crushing sieve section of thick bamboo inboard and the interior crushing sieve section of thick bamboo outside, interior crushing sieve section of thick bamboo inboard sets firmly with the second grade crushing knife tackle that distributes that staggers relatively of crushing roller, therefore can smash the stirring through the one-level crushing knife tackle that staggers the distribution, second grade crushing knife tackle and crushing roller simultaneously screening.
The further improvement is that: planetary gear and tripod all locate between outer crushing sieve section of thick bamboo and the interior crushing sieve section of thick bamboo, planetary gear includes sun gear, three planet pinion, the three basic spare of interior ring gear, the fixed cover of sun gear is located in the pivot for drive planetary gear drives interior crushing sieve section of thick bamboo and rotates.
The further improvement is that: the inside tooth ring outside welds with the tripod middle part, the tripod is including the connecting rod of integrative a plurality of, the connecting rod passes through the bolt lock solid in interior crushing sieve section of thick bamboo right side, is connected with interior crushing sieve section of thick bamboo through the tripod and slows down the rotation rate of interior crushing sieve section of thick bamboo.
The further improvement is that: the fluid pump is connected and is controlled by the controller, in crushing sieve section of thick bamboo was located to inner chamber and port of fluid pump connecting pipe one end through connection central siphon, the equal screw lock of outer crushing sieve section of thick bamboo and interior crushing sieve section of thick bamboo surface has the screen cloth that the annular array distributes, is convenient for change the screen cloth with the demand.
The further improvement is that: the sieve mesh of a sieve section of thick bamboo is smashed in the sieve mesh is less than the sieve mesh of a sieve section of thick bamboo in outer smashing, the connecting rod is equipped with threely.
By adopting the technical scheme, the invention has the beneficial effects that: according to the high-moisture silt and waste mud processing equipment, the fluid silt and waste mud in the external crushing screen cylinder and the fluid silt and waste mud in the internal crushing screen cylinder are subjected to multistage screening and crushing processing by utilizing the cutter sets and the crushing rollers at all levels, so that coarse particles in the silt and waste mud can be reduced, the drying efficiency and the drying effect can be improved, the utilization standardization can be realized, the positive and beneficial use effect can be realized, and the high-moisture silt and waste mud processing equipment can be widely popularized and used in the market.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the connection structure of the planetary gear and the tripod of the present invention;
FIG. 4 is a schematic view of the connection structure of the crushing screen cylinder and the tripod according to the present invention;
in the figure: the crushing device comprises a machine body 1, a controller 2, a motor box 3, a processing cavity 4, a material storage tank 5, a discharge valve 6, a universal wheel 7, a fluid pump 8, a connecting shaft tube 9, a rotating shaft 10, an outer crushing screen cylinder 11, an inner crushing screen cylinder 12, a screening net 121, crushing rollers 13, planetary gears 14, a sun gear 141, three planetary pinions 142, an inner toothed ring 143, a tripod 15, a connecting rod 151, a primary crushing cutter group 16 and a secondary crushing cutter group 17.
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, the present invention provides a technical solution of a high-moisture sludge processing device: a high-moisture silt processing device comprises a machine body 1, a controller 2 arranged on the front side of the machine body 1, a motor box 3 arranged on one side of the machine body 1, and a processing cavity 4 arranged inside the machine body 1, wherein an integrated material storage tank 5 is arranged on the other side of the machine body 1, a discharge valve 6 connected with the controller 2 is arranged at the bottom of the processing cavity 4, a plurality of universal wheels 7 are arranged at the bottom of the machine body 1, a fluid pump 8 is arranged on the upper side of the material storage tank 5, the fluid pump 8 is respectively connected with the bottom of the material storage tank 5 and the processing cavity 4 through a conveying pipe, a connecting shaft pipe 9 is fixedly arranged on the left side of the machine body 1, a motor connected with and controlled by the controller 2 is arranged in the motor box 3, a motor shaft is connected with a rotating shaft 10, the rotating shaft 10 is arranged inside the processing cavity 4 in a penetrating manner, an outer crushing screen cylinder 11 and, the inner crushing screen cylinder 12 is arranged on the inner side of the outer crushing screen cylinder 11, the rotating shaft 10 penetrates through the right side of the outer crushing screen cylinder 11 and the right side of the inner crushing screen cylinder 12 respectively, the outer crushing screen cylinder 11 is fixedly sleeved on the rotating shaft 10, the tail end of the rotating shaft 10 is sleeved with the crushing roller 13, the crushing roller 13 is arranged inside the inner crushing screen cylinder 12, the planetary gear 14 is sleeved on the rotating shaft 10, the triangular frame 15 is welded on the outer side of the planetary gear 14, the planetary gear 14 is connected with the inner crushing screen cylinder 12 through the triangular frame 15, one end of the connecting shaft tube 9 is respectively connected with the left end shaft of the outer crushing screen cylinder 11 and the left end shaft of the inner crushing screen cylinder 12, materials in the material storage tank 5 can be pumped into the inner crushing screen cylinder 12 to be screened, the rotating speed of the outer crushing screen cylinder 11 is different from that of the inner crushing screen cylinder 12 under the action of the planetary gear 14, a multi-stage screening processing effect is added, and a one-stage crushing cutter set 16 which is relatively distributed between the inner crushing, the inside of the inner crushing screen cylinder 12 is fixedly provided with a second-stage crushing cutter group 17 which is staggered with the crushing roller 13, so that crushing and stirring can be carried out through a first-stage crushing cutter group 16, the second-stage crushing cutter group 17 and the crushing roller 13 which are staggered, the planetary gear 14 and the tripod 15 are arranged between the outer crushing screen cylinder 11 and the inner crushing screen cylinder 12, the planetary gear 4 comprises three basic components of a sun gear 141, three planet pinions 142 and an inner gear ring 143, the sun gear 141 is fixedly sleeved on the rotating shaft 10 and used for driving the planetary gear 4 to drive the inner crushing screen cylinder 12 to rotate, the outer part of the inner gear ring 143 is welded with the middle part of the tripod 15, the tripod 15 comprises a plurality of connecting rods 151 which are integrated, the connecting rods 151 are locked on the right side of the inner crushing screen cylinder 12 through bolts, and the tripod 15 is connected with the inner crushing screen cylinder 12 to slow down the rotation speed of the inner crushing screen cylinder 12, fluid pump 8 connects and is controlled by controller 2, in crushing sieve section of thick bamboo 12 in inner chamber and port of 8 connecting pipe one end through connection central siphon 9 of fluid pump were located, the equal screw lock in outer crushing sieve section of thick bamboo 11 and the 12 outer surfaces of interior crushing sieve section of thick bamboo has the screen mesh 121 that annular array distributes, is convenient for change screen mesh 121 with the demand as being, the screen mesh 121 of outer crushing sieve section of thick bamboo 11 compares the screen mesh and is less in the screen mesh 121 of interior crushing sieve section of thick bamboo 12, connecting rod 151 is equipped with threely.
The working principle is as follows: the fluid pump 8 pumps the material from the material storage tank 5 into the inner crushing screen cylinder 12 through a connecting pipe, the connecting pipe at one end is arranged through a connecting shaft pipe 9 fixed on the machine body 1, the connecting shaft pipe 9 is respectively connected with the outer crushing screen cylinder 11 and the inner crushing screen cylinder 12 in a shaft-moving way, so that the material can not rotate, after the material enters the inner crushing screen cylinder 12, the material drives a rotating shaft 10 to drive the outer crushing screen cylinder 11 and the planetary gear 14 to rotate through a motor inside a motor box 3, a tripod 15 is welded on the outer surface of an inner gear ring 143 of the planetary gear 14, a connecting rod 151 is respectively connected with one side of the inner crushing screen cylinder 12, so that the inner crushing screen cylinder 12 connected with the outer crushing screen cylinder 11 and the planetary gear 14 can rotate and screen at different rotating frequencies, the screening efficiency is improved, and a first-level crushing cutter set 16 which is relatively distributed in a staggered way is respectively connected between the outer crushing screen cylinder 11 and the inner crushing, and inside crushing sieve section of thick bamboo 12 inboard distributes with smashing roller 13 staggers relatively, therefore it can be including crushing sieve section of thick bamboo 12 in the screening smash the back, further get into outer crushing sieve section of thick bamboo 11 and filter once more and smash for the material can distribute evenly, smashes processing through multistage screening, can reduce coarse granule in the silt mud, can improve mummification efficiency, mummification effect and utilize the standardization.
The present invention has been described in detail with reference to the specific embodiments, but these should not be construed as limitations of the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (6)
1. The utility model provides a high moisture silt mud processing equipment, its structure includes the organism, locates the controller of organism front side, installs in the motor case of organism one side and locates the inside processing cavity of organism, its characterized in that: the machine body is characterized in that an integrated material storage groove is arranged at the other side of the machine body, a discharge valve connected with a controller is arranged at the bottom of the processing cavity, a plurality of universal wheels are arranged at the bottom of the machine body, a fluid pump is arranged at the upper side of the material storage groove and is respectively connected with the bottom of the material storage groove and the processing cavity through conveying pipes, a connecting shaft pipe is fixedly arranged at the left side of the machine body, a motor connected with and controlled by the controller is arranged in the motor box, a motor shaft is connected with a rotating shaft, the rotating shaft is penetratingly arranged in the processing cavity, an outer crushing screen cylinder and an inner crushing screen cylinder are rotatably connected in the processing cavity, the inner crushing screen cylinder is arranged at the inner side of the outer crushing screen cylinder, the rotating shaft respectively penetrates through the right side of the outer crushing screen cylinder and the right side of the inner crushing screen cylinder, the outer crushing screen cylinder is fixedly sleeved, the sea cover is equipped with planetary gear in the pivot, the welding of planetary gear outside has the tripod, planetary gear passes through the tripod and is connected with interior crushing sieve section of thick bamboo, connecting shaft pipe one end respectively with outer crushing sieve section of thick bamboo and interior crushing sieve section of thick bamboo left end hub connection.
2. The high moisture sludge processing apparatus of claim further comprising: the inside of the inner crushing screen cylinder is fixedly provided with a second-stage crushing cutter group which is distributed in a staggered manner relative to the crushing roller.
3. The high moisture sludge processing apparatus of claim further comprising: planetary gear and tripod all locate between outer crushing sieve section of thick bamboo and the interior crushing sieve section of thick bamboo, planetary gear includes sun gear, three planet pinion, the three basic spare of interior ring gear, the fixed cover of sun gear is located in the pivot.
4. The high moisture sludge processing apparatus of claim further comprising: the outer portion of the inner gear ring is welded with the middle of the tripod, the tripod comprises a plurality of integrated connecting rods, and the connecting rods are fixedly locked on the right side of the inner crushing screen cylinder through bolts.
5. The high moisture sludge processing apparatus of claim further comprising: the fluid pump is connected and controlled by the controller, the inner chamber and the port of fluid pump connecting pipe one end through connection central siphon locate in the crushing sieve section of thick bamboo, the equal screw lock of outer crushing sieve section of thick bamboo and the equal screw lock of the interior crushing sieve section of thick bamboo surface has the screening net that the annular array distributes.
6. The high moisture sludge processing apparatus of claim further comprising: the screening net of the outer crushing screen cylinder is smaller than that of the inner crushing screen cylinder in comparison with the screen holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331594.XA CN111495531A (en) | 2020-04-24 | 2020-04-24 | High-moisture silt and waste mud processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331594.XA CN111495531A (en) | 2020-04-24 | 2020-04-24 | High-moisture silt and waste mud processing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111495531A true CN111495531A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010331594.XA Pending CN111495531A (en) | 2020-04-24 | 2020-04-24 | High-moisture silt and waste mud processing equipment |
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| Country | Link |
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| CN (1) | CN111495531A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399077A (en) * | 2021-06-18 | 2021-09-17 | 山西贝特瑞新能源科技有限公司 | Preparation device and preparation method of silicon-carbon composite negative electrode material of lithium battery |
| CN115501952A (en) * | 2022-11-09 | 2022-12-23 | 安徽科技学院 | Iron-based biochar grinding device |
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| CN207254723U (en) * | 2017-08-25 | 2018-04-20 | 肖贤明 | Dedicated sand sieving machine in a kind of civil engineering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399077A (en) * | 2021-06-18 | 2021-09-17 | 山西贝特瑞新能源科技有限公司 | Preparation device and preparation method of silicon-carbon composite negative electrode material of lithium battery |
| CN115501952A (en) * | 2022-11-09 | 2022-12-23 | 安徽科技学院 | Iron-based biochar grinding device |
| CN115501952B (en) * | 2022-11-09 | 2023-10-20 | 安徽科技学院 | Iron-based biochar grinding device |
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Application publication date: 20200807 |
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