Coconut shell charcoal grinding device

Abstract

The utility model belongs to the technical field of biochar preparation, and particularly relates to a coconut shell biochar grinding device which comprises a grinding machine and an inner grinding disc, the grinding machine comprises an outer grinding disc and an inner grinding disc, the outer grinding disc is supported and fixed through supporting legs, and the inner grinding disc is rotationally arranged in the outer grinding disc; when the biochar is put into the grinding machine to be ground, the inner grinding disc and the outer grinding disc which are arranged in a grading mode are arranged, the biochar can be ground in a grading mode from coarse to fine, and the biochar meeting the grinding standard automatically enters the next stage from a gap between the inner grinding disc and the outer grinding disc through centrifugal force generated by rotation of the inner grinding disc; through the adsorption force of the magnetic block above the valve to the outer wall of the blanking cavity, the ground biochar can be accumulated in the blanking cavity, the ground biochar is prevented from directly leaking out of the discharge port and drifting in the air, the pollution to the environment is reduced, meanwhile, the situation that workers inhale the biochar into the respiratory tract is reduced, and the influence on the body is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of biochar preparation, and specifically relates to a coconut shell biochar grinding device. Background Technique

[0002] The coconut shell biochar grinding device plays a key role in the process of processing coconut shells into biochar. First, the coconut shells are carbonized to transform into solid materials with a high carbon content. The carbonized coconut shell charcoal fragments are sent into the grinding device. In the grinding device, the coconut shell charcoal fragments are ground by the grinding parts rotating at high speed and are broken into smaller particles or powders. The ground coconut shell biochar is separated by particle size through a sieve or a grading device to obtain products that meet the requirements. Coconut shell biochar has broad application prospects, such as being used as an adsorbent, a catalyst carrier, a soil conditioner, etc. With the improvement of environmental awareness and the development of renewable energy technologies, the demand for coconut shell biochar is expected to continue to grow. As one of the important devices in the production process of coconut shell biochar, the technical level and performance of the grinding device will directly affect the quality and output of the products.

[0003] For example, a raw material crushing device for biochar production disclosed in Chinese Patent CN218190041U proposes that: a crushing box is installed on the top of the base, a feed inlet is opened on the top of the crushing box, a second motor is installed on one side of the feed inlet, the output end of the second motor penetrates through the top of the crushing box and is welded to one side of a circular gear, the other side of the circular gear is welded to a second rotating shaft, multiple groups of blades are arranged on the surface of the second rotating shaft, a grinding mechanism is arranged below the second rotating shaft, a discharge port is arranged at the bottom of the base, and a storage box is slidably connected inside the discharge port. The utility model can drive the circular gear to rotate through the arranged second motor, the circular gear drives the second rotating shaft to rotate, thereby driving multiple groups of blades to crush the materials entering the crushing box, and through the arranged grinding mechanism, the crushed materials can be fully ground, thus greatly improving the grinding efficiency and making it meet the requirements of the required grinding particle size.

[0004] For the existing coconut shell biochar grinding device, after the biochar is ground, it needs to be screened. The biochar that does not meet the regulations needs to be put back into the grinding device for secondary grinding, and it is impossible to achieve fine grading grinding. Moreover, during the grinding operation, since the ground biochar is very light in weight, it is very easy to float in the air. The biochar floating in the air not only pollutes the environment, but also affects the body after being inhaled by the staff, and at the same time causes unnecessary waste. Therefore, a coconut shell biochar grinding device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and address the problem that it is impossible to achieve fine-grading grinding of biochar during grinding, the present utility model proposes a coconut shell biochar grinding device, which can perform grading grinding of biochar from coarse to fine through the internally submerged disk and the externally grinding disk arranged in a graded manner.

[0006] The technical solution adopted by the present utility model to solve its technical problems is a coconut shell biochar grinding device, which includes a grinding machine. The grinding machine includes an externally grinding disk, and the externally grinding disk is supported and fixed by support legs.

[0007] An internally grinding disk, and the internally grinding disk is rotatably arranged inside the externally grinding disk.

[0008] A feed hopper is arranged at the top of the externally grinding disk, and a motor bracket is welded and fixed on the feed hopper. A grinding motor is installed at the top of the motor bracket.

[0009] A fan blade. The output end of the grinding motor is connected to a rotating shaft, the bottom end of the rotating shaft is connected to the top side surface of the internally grinding disk, and a fan blade is installed on the outer side of the middle part of the rotating shaft. The fan blade is located inside the feed hopper.

[0010] Preferably, the gap between the rotating shaft and the top port wall of the feed hopper is the feed port.

[0011] Preferably, the internally grinding disk is a three-stage stepped structure, and the externally grinding disk is also a three-stage stepped structure. The distance between the outer wall of the internally grinding disk and the inner wall of the externally grinding disk gradually decreases from top to bottom. Through the graded internally submerged disk and the externally grinding disk, the biochar can be graded and ground from coarse to fine. And through the centrifugal force generated by the rotation of the internally grinding disk, the biochar that meets the grinding standard automatically enters the next stage from the gap between the internally grinding disk and the externally grinding disk.

[0012] Preferably, the bottom of the externally grinding disk is a conical downward discharging cavity. A quantitative mechanism is arranged at the bottom port of the discharging cavity. A diversion pipe is connected to the bottom side of the discharging cavity, and the bottom of the diversion pipe is connected to a discharge port, which can cooperate to discharge the ground biochar powder.

[0013] Preferably, a support plate is fixed inside the diversion pipe, and a quantitative mechanism is arranged on the support plate. The quantitative mechanism includes a housing. A piston rod is slidably arranged at the top port of the housing. A return spring is fixedly connected between the bottom end of the piston rod and the bottom inner wall of the housing. A valve is arranged at the top of the piston rod, and a magnetic block is fixed on the top side of the valve. The magnetic block is located directly below the bottom port of the discharging cavity. Through the adsorption force of the magnetic block above the valve on the outer wall of the discharging cavity, the ground biochar can be accumulated inside the discharging cavity, preventing the ground biochar from directly leaking out from the discharge port and floating in the air, which will cause environmental pollution and at the same time, the staff will inhale it into the respiratory tract and cause harm to the body.

[0014] The advantages of the present utility model are as follows:

[0015] When the biochar is put into the grinder for grinding, through the inner submerged disk and the outer grinding disk arranged in a hierarchical manner, the biochar can be ground in a hierarchical manner from coarse to fine, and through the centrifugal force generated by the rotation of the inner grinding disk, the biochar meeting the grinding standard automatically enters the lower level from the gap between the inner grinding disk and the outer grinding disk.

[0016] Through the fan arranged above the rotating shaft, when the biochar is put into the grinder, the biochar is initially broken, and while dissipating heat from the grinding disk inside the grinder, a downward blowing air flow is provided, which can prevent the ground biochar from flying out of the feed port.

[0017] By arranging the blanking cavity to incline inward, the ground biochar can naturally slide downward under the influence of gravity, preventing the biochar from being blocked inside the blanking cavity.

[0018] Through the adsorption force of the magnet above the valve on the outer wall of the blanking cavity, the ground biochar can be accumulated inside the blanking cavity, preventing the ground biochar from directly leaking out from the discharge port and floating in the air, reducing environmental pollution. At the same time, it reduces the inhalation of the staff into the respiratory tract and reduces the impact on the body. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure.

[0021] Figure 2 It is a schematic diagram of the internal structure of the outer grinding disk.

[0022] Figure 3 It is a schematic diagram of the overall sectional structure.

[0023] Figure 4 It is a schematic diagram of the metering mechanism.

[0024] In the figure: 1, support leg; 2, grinder; 3, feed port; 4, discharge port; 5, motor bracket; 6, grinding motor; 7, rotating shaft; 8, fan blade; 9, inner grinding disk; 10, outer grinding disk; 11, blanking cavity; 12, metering mechanism; 13, housing; 14, return spring; 15, piston rod; 16, valve; 17, magnet. Detailed Embodiments

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4 As shown in the figure, a coconut shell biochar grinding device includes a grinding machine 2, and the grinding machine 2 includes an outer grinding disc 10, and the outer grinding disc 10 is supported and fixed by support legs 1.

[0027] An inner grinding disc 9 is rotatably arranged inside the outer grinding disc 10.

[0028] A feed hopper is arranged on the top of the outer grinding disc 10, a motor bracket 5 is welded and fixed on the feed hopper, and a grinding motor 6 is installed on the top of the motor bracket 5.

[0029] A fan blade 8, the output end of the grinding motor 6 is connected to a rotating shaft 7, the bottom end of the rotating shaft 7 is connected to the top side surface of the inner grinding disc 9, a fan blade 8 is installed on the outer side of the middle part of the rotating shaft 7, the fan blade 8 is located inside the feed hopper, and the gap between the rotating shaft 7 and the top port wall of the feed hopper is a feed port 3.

[0030] The inner grinding disc 9 is of a three-level stepped structure, the outer grinding disc 10 is also of a three-level stepped structure, and the distance between the outer wall of the inner grinding disc 9 and the inner wall of the outer grinding disc 10 gradually decreases from top to bottom, so as to realize step-by-step grinding.

[0031] During operation, when grinding biochar, the biochar is first put into the grinder 2 from the feed port 3. The fan blades 8 above the rotating shaft 7 first assist in dispersing it. The dispersed biochar falls into the uppermost inner grinding disc 9. The inner grinding disc 9 is driven to rotate by the grinding motor 6 and cooperates with the outer grinding disc 10 provided on the inner wall of the grinder 2 to roughly grind the biochar. During the grinding process, under the influence of the centrifugal force generated by the rotation of the inner grinding disc 9, the biochar above the inner grinding disc 9 moves outward. The biochar after rough grinding can pass through the gap between the upper inner grinding disc 9 and the outer grinding disc 10 and enter the next layer of the inner grinding disc for secondary grinding. There are three levels of the inner grinding disc 9 and the outer grinding disc 10 in total. The uppermost is rough grinding, and the lowermost is fine grinding. And from top to bottom, the gap between the inner grinding disc 9 and the outer grinding disc 10 becomes smaller. Finally, the biochar after fine grinding will fall into the blanking cavity 11, thus achieving the purpose of graded fine grinding. During the grinding process, the fan blades 8 continuously rotate to blow air downward. This can not only cool the inner grinding disc 9 and the outer grinding disc 10, but also, since the biochar is very fine after grinding and is likely to float out from the feed port and be inhaled by the staff into the respiratory tract, causing a safety hazard, the airflow generated by the downward blowing of the fan blades 8 prevents the biochar from floating out from the feed port.

[0032] The bottom of the outer grinding disc 10 is a conical blanking cavity 11. A quantitative mechanism 12 is provided at the bottom port of the blanking cavity 11. A diversion pipe is connected to the bottom side of the blanking cavity 11. The bottom of the diversion pipe is connected to a discharge port 4. A support plate is fixed in the diversion pipe, and a quantitative mechanism 12 is provided on the support plate. The quantitative mechanism 12 includes a housing 13. A piston rod 15 is slidably arranged at the top port of the housing 13. A return spring 14 is fixedly connected between the bottom end of the piston rod 15 and the bottom inner wall of the housing 13. A valve 16 is provided at the top of the piston rod 15. A magnetic block 17 is fixed to the top side of the valve 16, and the magnetic block 17 is located directly below the bottom port of the blanking cavity 11.

[0033] During operation, the ground biochar will accumulate inside the blanking cavity. After the biochar accumulates, its weight increases. When the weight exceeds the magnetic force of the magnetic block 17 provided above the valve 16, the valve 16 moves downward to press the return spring 14. The elasticity of the return spring 14 is much smaller than the magnetic force of the magnetic block, so the coconut shell charcoal inside the blanking cavity 11 can be emptied. Since the freshly ground biochar inside the blanking cavity 11 has heat generated during grinding, it will adsorb to each other. Discharging after accumulating to a certain weight effectively prevents biochar from dispersing in the air when directly emptied, which not only affects the environment, but also, if the finely ground biochar is inhaled by the staff, it will affect the body and cause unnecessary waste.

[0034] In the description of this specification, the basic principles, main features, and advantages of the present utility model have been shown and described above. For those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model fall within the scope of the present utility model claimed.

Claims

1. A coconut shell biochar grinding device, characterized in that: include: A grinding machine (2), the grinding machine (2) comprising an outer grinding disc (10), the outer grinding disc (10) being supported and fixed by a supporting leg (1); An inner grinding disc (9), the inner grinding disc (9) being rotatably arranged inside the outer grinding disc (10); A feed hopper is arranged on the top of the outer grinding disc (10), a motor bracket (5) is welded and fixed on the feed hopper, and a grinding motor (6) is installed on the top of the motor bracket (5); The output end of the grinding motor (6) is connected to a rotating shaft (7), the bottom end of the rotating shaft (7) is connected to the top side of the inner grinding disc (9), and the fan blade (8) is installed on the outer side of the middle part of the rotating shaft (7), and the fan blade (8) is located inside the feed hopper.

2. A coconut shell biochar grinding device according to claim 1, characterized in that: The gap between the rotating shaft (7) and the top port wall of the feed hopper is the feed port (3).

3. A coconut shell biochar grinding device according to claim 2, characterized in that: The inner grinding disc (9) is a three-step ladder structure, and the outer grinding disc (10) is also a three-step ladder structure.

4. A coconut shell biochar grinding device according to claim 3, characterized in that: The distance between the outer wall of the inner grinding disc (9) and the inner wall of the outer grinding disc (10) gradually decreases from top to bottom.

5. A coconut shell biochar grinding device according to claim 4, characterized in that: The bottom of the outer grinding disc (10) is an inverted conical material-dropping cavity (11), and a quantitative mechanism (12) is arranged at the bottom port of the material-dropping cavity (11).

6. A coconut shell biochar grinding device according to claim 5, characterized in that: The bottom side of the blanking cavity (11) is connected to a flow guide pipe, and the bottom of the flow guide pipe is connected to a discharge port (4).

7. A coconut shell biochar grinding device according to claim 6, characterized in that: A support plate is fixed in the guide tube, and a quantitative mechanism (12) is arranged on the support plate. The quantitative mechanism (12) comprises a shell (13), and a piston rod (15) is slidably arranged at the top port of the shell (13). A return spring (14) is fixedly connected between the bottom end of the piston rod (15) and the bottom inner wall of the shell (13). A valve (16) is arranged on the top of the piston rod (15), and a magnetic block (17) is fixed on the top side of the valve (16), and the magnetic block (17) is located directly below the bottom port of the blanking cavity (11).

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