CN112961684A - Biochar production and processing equipment - Google Patents
Biochar production and processing equipment Download PDFInfo
- Publication number
- CN112961684A CN112961684A CN202110149292.5A CN202110149292A CN112961684A CN 112961684 A CN112961684 A CN 112961684A CN 202110149292 A CN202110149292 A CN 202110149292A CN 112961684 A CN112961684 A CN 112961684A
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- crushing
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- carbonization
- area
- processing equipment
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
- C10B1/02—Stationary retorts
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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
- B02C23/16—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
- C10B1/02—Stationary retorts
- C10B1/04—Vertical retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
-
- 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
- B02C2023/165—Screen denying egress of oversize material
Abstract
The invention relates to the technical field of biochar, in particular to biochar production and processing equipment which comprises a carbonization furnace, a combustion furnace, a crushing bin and a discharging device, wherein the crushing bin is arranged above the carbonization furnace and comprises a crushing area and a preheating area, the crushing area is internally provided with a crushing device for crushing carbon raw materials, the bottom of the crushing area is provided with a feed opening communicated with the carbonization area, the preheating area is arranged on the outer side of the crushing area, and the bottom of the preheating area is provided with a smoke through opening communicated with a heating area. According to the invention, the crushing bin is arranged above the carbonization furnace, the crushing bin comprises the inner crushing area and the outer preheating area, the crushing device is arranged in the crushing area to crush the raw materials, the crushed raw materials enter the carbonization area through the feed opening to be carbonized, the carbonization efficiency is improved, the carbonization degrees are relatively consistent, high-temperature flue gas in the heating area enters the preheating area through the smoke opening to preheat the raw materials in the crushing area, and the utilization rate of energy is improved.
Description
Technical Field
The invention relates to the technical field of biochar, in particular to biochar production and processing equipment.
Background
Common biochar includes rice husk charcoal, straw charcoal, bamboo charcoal, charcoal made from animal waste, and the like. The biochar is highly stable, has strong adsorption capacity, and plays an important role in global climate change, carbon cycle and environmental problems. The biomass pyrolysis technology is developed to date, and has various types and characteristics. The major product forms can be classified into gasification, liquefaction, and carbonization.
For example, patent with application number CN201720092202.2 discloses a novel bio-char preparation device, which comprises a combustion furnace, a bio-char cracking furnace and a bio-oil preparation device which are connected in sequence; the combustion furnace is connected with a controller, and the controller monitors the temperature and the pressure in the biochar cracking furnace and controls the heat of combustion in the combustion furnace; the bottom of the combustion furnace is connected with a flue gas pipeline; the flue gas pipeline extends and is arranged on the periphery of the biological carbon cracking furnace so as to transfer heat to the biological carbon cracking furnace; the biological carbon cracking furnace is provided with a gas channel which is communicated with the interior of the biological oil preparation device; the bio-oil preparation equipment is internally provided with a cooling water pipeline and is provided with a bio-oil outlet and a residual gas channel; the residual gas channel is connected to the combustion furnace through a first exhaust fan; the biochar cracking furnace is connected with a discharging device, and the discharging device transports the biochar in the biochar cracking furnace and crushes the biochar into particles. The technical proposal of the utility model can make the energy be utilized efficiently, and is environment-friendly and energy-saving; and can rapidly prepare and package the biochar.
The novel biological charcoal preparation equipment of above-mentioned patent utilizes the energy high-efficiently, more environmental protection. However, the raw materials of the biochar are various and have different structures, so that the carbonization degree of the biochar is easily different, the energy utilization rate of the combustion furnace is not high, and a large amount of energy is easily wasted.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art and provide a biochar production and processing device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a biochar production and processing device, which comprises a carbonization furnace, a combustion furnace, a crushing bin and a discharging device, the carbonization furnace comprises a carbonization zone and a heating zone, the heating zone surrounds the outer side of the carbonization zone, the combustion furnace is connected with a pipeline of the heating zone, used for outputting high-temperature flue gas to a heating zone, the crushing bin is arranged above the carbonization furnace and comprises a crushing zone and a preheating zone, a crushing device for crushing the carbon raw material is arranged in the crushing area, a feed opening communicated with the carbonization area is arranged at the bottom of the crushing area, the preheating zone is arranged outside the crushing zone, the bottom of the preheating zone is provided with a smoke through hole communicated with the heating zone, the discharging device comprises a carbon discharging device and an oil making device, the carbon discharging device is used for outputting the biological carbon generated in the carbonization furnace, and the oil making device is used for collecting the gas generated in the carbonization furnace and cooling to obtain the biological oil.
Furthermore, a valve component for opening and closing the feed opening is arranged in the feed opening.
Further, be provided with driving motor, pivot, auger blade in the carbomorphism district, driving motor is used for driving the pivot to rotate, the auger blade is around establishing in the pivot.
Furthermore, the crushing device comprises two first crushing tooth rollers matched with each other and a first driving device used for driving the first crushing tooth rollers to rotate.
Furthermore, reducing mechanism includes that the fluted roller is smashed to the second and second drive arrangement, second drive arrangement is used for driving the second and smashes the fluted roller and rotate, be provided with a plurality of and the crushing tooth of the fluted roller complex of second crushing on the inner wall in crushing district, smash the tooth setting and smash the both sides of fluted roller at the second.
Furthermore, the second crushing fluted roller is positioned below the first crushing fluted roller and above the feed opening.
Furthermore, a screen is arranged between the second crushing tooth roller and the feed opening.
Furthermore, a feed inlet is formed in the top of the crushing area and is located above the first crushing toothed roller.
Furthermore, a smoke exhaust port is arranged at the top of the preheating zone.
Further, the oil making device comprises an oil collecting tank, an exhaust fan and a condensation pipeline, wherein the oil collecting tank is connected with the carbonization zone through a pipeline, the exhaust fan is arranged between the oil collecting tank and the carbonization zone and used for pumping gas in the carbonization zone to the oil collecting tank, and the condensation pipeline flows through the oil collecting tank and is used for cooling the gas.
The invention has the beneficial effects that: from the above description of the present invention, it can be seen that, compared with the prior art, the biochar production and processing equipment of the present invention comprises a carbonization furnace, a combustion furnace, a crushing bin and a discharging device, wherein the carbonization furnace is divided into an inner carbonization region and an outer heating region, high temperature flue gas is output to the heating region through the combustion furnace to heat the raw material in the carbonization region to obtain biochar, the crushing bin is arranged above the carbonization furnace, the crushing bin comprises an inner crushing region and an outer preheating region, the crushing device is arranged in the crushing region to crush the raw material, the crushed raw material enters the carbonization region through a feed opening to be carbonized, so as to improve carbonization efficiency, make carbonization degrees more consistent, improve carbonization effect, and when the raw material is crushed, the high temperature flue gas in the heating region enters the preheating region through a smoke opening to preheat the raw material in the crushing region, improve energy utilization rate, and further improve carbonization efficiency, discharging device includes carbon delivery device and system oil device, through the biological charcoal that generates in the carbon delivery device output carbomorphism stove, through the system oil device gas that generates in the collection carbomorphism stove and cooling obtain biological oil, carries out comparatively abundant utilization to the raw materials.
Drawings
FIG. 1 is a schematic structural diagram of a biochar production and processing apparatus according to a preferred embodiment of the present invention;
reference numerals: 1. a carbonization furnace; 2. a combustion furnace; 3. a crushing bin; 4. a discharging device; 11. a carbonization zone; 12. a heating zone; 31. a crushing zone; 32. a preheating zone; 33. a crushing device; 41. a carbon discharging device; 42. an oil making device; 111. a drive motor; 112. a rotating shaft; 113. a screw blade; 311. a feeding port; 312. a valve assembly; 321. a smoke through hole; 322. a smoke outlet; 331. a first crushing toothed roller; 332. a first driving device; 333. a second crushing toothed roller; 334. a second driving device; 335. crushing teeth; 336. screening a screen; 421. an oil collecting tank; 422. an exhaust fan; 423. a condensing pipeline.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, in a preferred embodiment of the present invention, a biochar production processing apparatus includes a carbonization furnace 1, a combustion furnace 2, a pulverizing bin 3, and a discharging device 4, where the carbonization furnace 1 includes a carbonization zone 11 and a heating zone 12, the heating zone 12 surrounds the outside of the carbonization zone 11, the combustion furnace 2 is connected to the heating zone 12 through a pipeline for outputting high-temperature flue gas to the heating zone 12, the pulverizing bin 3 is disposed above the carbonization furnace 1, the pulverizing bin 3 includes a pulverizing zone 31 and a preheating zone 32, a pulverizing device 33 for pulverizing carbon raw materials is disposed in the pulverizing zone 31, a discharging port 311 communicated with the carbonization zone 11 is disposed at the bottom of the pulverizing zone 31, the preheating zone 32 is disposed at the outside of the pulverizing zone 31, a smoke vent 321 communicated with the heating zone 12 is disposed at the bottom of the preheating zone 32, the discharging device 4 includes a carbon discharging device 41 and an oil producing device 42, the charcoal discharging device 41 is used for outputting the biochar generated in the carbonization furnace 1, and the oil making device 42 is used for collecting the gas generated in the carbonization furnace 1 and cooling to obtain the bio-oil.
The biochar production and processing equipment comprises a carbonization furnace 1, a combustion furnace 2, a crushing bin 3 and a discharging device 4, wherein the carbonization furnace 1 is divided into an inner carbonization area 11 and an outer heating area 12, high-temperature flue gas is output to the heating area 12 through the combustion furnace 2 to heat raw materials in the carbonization area 11 to obtain biochar, the crushing bin 3 is arranged above the carbonization furnace 1, the crushing bin 3 comprises an inner crushing area 31 and an outer preheating area 32, a crushing device 33 is arranged in the crushing area 31 to crush the raw materials, the crushed raw materials enter the carbonization area 11 through a feed opening 311 to be carbonized, the carbonization efficiency is improved, the carbonization degree is more consistent, the carbonization effect is improved, the high-temperature flue gas in the heating area 12 enters the preheating area 32 through a smoke opening 321 while the raw materials are crushed, the raw materials in the crushing area 31 are preheated, the utilization rate of energy is improved, and the carbonization efficiency is further improved, the discharging device 4 comprises a carbon discharging device 41 and an oil making device 42, the biochar generated in the carbonization furnace 1 is output through the carbon discharging device 41, the gas generated in the carbonization furnace 1 is collected and cooled through the oil making device 42 to obtain bio-oil, and raw materials are fully utilized.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
in this embodiment, a valve assembly 312 for opening and closing the feed opening 311 is disposed in the feed opening 311. A valve assembly 312 is disposed in the feed opening 311 so that the feed opening 311 is closed by the valve assembly 312 to enclose the carbonization zone 11 when the carbonization furnace 1 carbonizes the raw material, wherein the valve assembly 312 may be an electromagnetic valve, but is not limited thereto.
In this embodiment, be provided with driving motor 111, pivot 112, auger blade 113 in carbomorphism district 11, driving motor 111 is used for driving pivot 112 to rotate, auger blade 113 is around establishing on pivot 112. A driving motor 111, a rotating shaft 112 and an auger blade 113 are arranged in the carbonization furnace 1, the rotating shaft 112 is driven by the driving motor 111 to rotate, and the auger blade 113 is driven by the rotating shaft 112 to rotate so as to stir the raw materials in the carbonization zone 11, thereby improving the carbonization efficiency.
In this embodiment, the crushing device 33 comprises two first crushing teeth 331 cooperating with each other and a first driving device 332 for driving the first crushing teeth 331 to rotate. The crushing device 33 drives the two first crushing teeth 331 which are matched to rotate relatively through the first driving device 332, so as to crush the raw material on the two first crushing teeth 331.
In this embodiment, the crushing device 33 includes a second crushing fluted roller 333 and a second driving device 334, the second driving device 334 is used for driving the second crushing fluted roller 333 to rotate, a plurality of crushing teeth 335 matched with the second crushing fluted roller 333 are arranged on the inner wall of the crushing zone 31, the crushing teeth 335 are arranged on two sides of the second crushing fluted roller 333, and the second crushing fluted roller 333 is positioned below the first crushing fluted roller 331 and above the feed opening 311. The raw material crushed by the two first crushing fluted rollers 331 falls onto the second crushing fluted roller 333, the second driving device 334 drives the second crushing fluted roller 333 to rotate, and the raw material is completely crushed under the action of the second crushing fluted roller 333 and the crushing teeth 335, so that the crushing efficiency is improved, and the crushing effect is ensured.
In this embodiment, a screen 336 is provided between the second pulverizing toothed roller 333 and the feed opening 311. A screen 336 is provided between the second pulverizing fluted roller 333 and the feed opening 311, and the pulverized raw material is screened by the screen 336, so that the completely pulverized raw material is surely fed into the carbonization furnace 1 and carbonized.
In this embodiment, the top of the crushing zone 31 is opened with a feed inlet 312, and the feed inlet 312 is located above the first crushing tooth roller 331. The raw material is added into the pulverizing section 31 by opening a feed inlet 312 at the top of the pulverizing section 31, and the feed inlet 312 is provided above the first pulverizing spur 331 so that the added raw material falls on the first pulverizing spur 331 for pulverizing.
In this embodiment, a smoke exhaust 322 is disposed at the top of the preheating zone 32. A smoke exhaust 322 is provided at the top of the preheating zone 32 to exhaust the fumes in the preheating zone 32 through the smoke exhaust 322.
In this embodiment, oil making device 42 includes oil collecting tank 421, air exhauster 422, condensation pipeline 423, oil collecting tank 421 and carbomorphism district 11 tube coupling, air exhauster 422 sets up between oil collecting tank 421 and carbomorphism district 11 for take out to oil collecting tank 421 with the gas in the carbomorphism district 11, condensation pipeline 423 flows through oil collecting tank 421, is used for cooling gas. During carbonization, the gas in the carbonization zone 11 is pumped to the oil collecting tank 421 by the exhaust fan 422, and the gas is cooled by the condensation pipeline 423, so that the gas is liquefied into bio-oil, and the raw materials are fully utilized.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A biochar production and processing equipment is characterized in that: the device comprises a carbonization furnace (1), a combustion furnace (2), a crushing bin (3) and a discharging device (4), wherein the carbonization furnace (1) comprises a carbonization zone (11) and a heating zone (12), the heating zone (12) surrounds the outer side of the carbonization zone (11), the combustion furnace (2) is connected with the heating zone (12) through a pipeline and used for outputting high-temperature flue gas to the heating zone (12), the crushing bin (3) is arranged above the carbonization furnace (1), the crushing bin (3) comprises a crushing zone (31) and a preheating zone (32), a crushing device (33) used for crushing carbon raw materials is arranged in the crushing zone (31), a discharging port (311) communicated with the carbonization zone (11) is arranged at the bottom of the crushing zone (31), the preheating zone (32) is arranged at the outer side of the crushing zone (31), a smoke through port (321) communicated with the heating zone (12) is arranged at the bottom of the preheating zone (32), discharging device (4) are including going out charcoal device (41) and system oil device (42), go out charcoal device (41) and be used for exporting the biological charcoal that produces in retort (1), system oil device (42) are used for collecting the gas that produces in retort (1) and cool and obtain biological oil.
2. The biochar production and processing equipment as claimed in claim 1, wherein: and a valve component (312) for opening and closing the feed opening (311) is arranged in the feed opening (311).
3. The biochar production and processing equipment as claimed in claim 1, wherein: be provided with driving motor (111), pivot (112), auger blade (113) in carbomorphism district (11), driving motor (111) are used for driving pivot (112) to rotate, auger blade (113) are around establishing on pivot (112).
4. The biochar production and processing equipment as claimed in claim 1, wherein: the crushing device (33) comprises two first crushing tooth rollers (331) matched with each other and a first driving device (332) used for driving the first crushing tooth rollers (331) to rotate.
5. The biochar production and processing equipment as claimed in claim 4, wherein: the smashing device (33) comprises a second smashing fluted roller (333) and a second driving device (334), the second driving device (334) is used for driving the second smashing fluted roller (333) to rotate, a plurality of smashing teeth (335) matched with the second smashing fluted roller (333) are arranged on the inner wall of the smashing area (31), and the smashing teeth (335) are arranged on two sides of the second smashing fluted roller (333).
6. The biochar production and processing equipment as claimed in claim 5, wherein: the second crushing fluted roller (333) is positioned below the first crushing fluted roller (331) and above the feed opening (311).
7. The biochar production and processing equipment as claimed in claim 5, wherein: and a screen (336) is arranged between the second crushing toothed roller (333) and the feed opening (311).
8. The biochar production and processing equipment as claimed in claim 4, wherein: a feed inlet (312) is formed in the top of the crushing area (31), and the feed inlet (312) is located above the first crushing toothed roller (331).
9. The biochar production and processing equipment as claimed in claim 1, wherein: and a smoke exhaust port (322) is arranged at the top of the preheating zone (32).
10. The biochar production and processing equipment as claimed in claim 1, wherein: system oily device (42) are including sump oil tank (421), air exhauster (422), condensation pipeline (423), sump oil tank (421) and carbomorphism district (11) tube coupling, air exhauster (422) set up between sump oil tank (421) and carbomorphism district (11) for take out to sump oil tank (421) with the gas in carbomorphism district (11), condensation pipeline (423) flow through sump oil tank (421) for cooling gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149292.5A CN112961684A (en) | 2021-02-03 | 2021-02-03 | Biochar production and processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149292.5A CN112961684A (en) | 2021-02-03 | 2021-02-03 | Biochar production and processing equipment |
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| Publication Number | Publication Date |
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| CN112961684A true CN112961684A (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110149292.5A Pending CN112961684A (en) | 2021-02-03 | 2021-02-03 | Biochar production and processing equipment |
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| CN (1) | CN112961684A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862042A (en) * | 2021-11-10 | 2021-12-31 | 王水全 | Gaseous hydrocarbon fission apparatus |
| CN114525150A (en) * | 2022-02-19 | 2022-05-24 | 李燕红 | New forms of energy living beings spontaneous heating carbomorphism equipment |
| CN115141641A (en) * | 2022-03-30 | 2022-10-04 | 广西壮族自治区农业科学院 | Movable field carbonization furnace equipment and carbon preparation method thereof |
| CN115287084A (en) * | 2022-07-10 | 2022-11-04 | 安徽科技学院 | Novel continuous environmental protection production facility of biological charcoal |
| CN116618156A (en) * | 2023-07-19 | 2023-08-22 | 河北富康房地产开发有限公司 | Anti-blocking stone crushing equipment for construction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862042A (en) * | 2021-11-10 | 2021-12-31 | 王水全 | Gaseous hydrocarbon fission apparatus |
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| CN115141641A (en) * | 2022-03-30 | 2022-10-04 | 广西壮族自治区农业科学院 | Movable field carbonization furnace equipment and carbon preparation method thereof |
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| CN115287084A (en) * | 2022-07-10 | 2022-11-04 | 安徽科技学院 | Novel continuous environmental protection production facility of biological charcoal |
| CN116618156A (en) * | 2023-07-19 | 2023-08-22 | 河北富康房地产开发有限公司 | Anti-blocking stone crushing equipment for construction |
| CN116618156B (en) * | 2023-07-19 | 2023-09-12 | 河北富康房地产开发有限公司 | Anti-blocking stone crushing equipment for construction |
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Application publication date: 20210615 |