A mill for producing activated carbon particles

Abstract

This utility model discloses a grinding mill for preparing activated carbon microparticles, relating to the field of activated carbon production technology. It includes a grinding chamber, a grinding assembly, and a pneumatic unit. The grinding chamber is characterized by two fixed support frames at its left and right ends. The grinding assembly and pneumatic unit are installed at the upper end of the grinding chamber. The grinding assembly comprises an annular mounting frame, a grinding disc, annular trapezoidal protrusions, perforations, and a sealing cover. A sealing cover is provided at the upper end of the grinding chamber, and an annular mounting frame is provided on the upper inner side of the sealing cover. The upper end of the annular mounting frame engages with the grinding disc. Multiple perforations are formed between the annular trapezoidal protrusions at the upper end of the grinding disc. This grinding mill for preparing activated carbon microparticles achieves good particle crushing, eliminating the need for multiple crushing and grinding processes. The pressure difference allows the crushed particles to quickly pass through a filter for collection.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon production, and in particular to a grinding mill for preparing activated carbon microparticles. Background Technology

[0002] Activated carbon is a porous solid carbon with a large specific surface area and strong adsorption capacity. It has many characteristics that other types of carbon materials do not have, such as thermal stability, chemical inertness, thermal processability and pore structure. It is also an important inorganic material that is widely used in many fields, most notably water treatment and air purification. Now, with the increasing environmental protection requirements of society, activated carbon, as an important environmentally friendly material, is being used more and more in industrial production. Among the existing technologies, the patent announcement number CN216025147U proposes a grinding mill for preparing activated carbon microparticles, which includes a base, a grinding box body is snapped onto the top of the base, two first motors are fixedly connected to one end of the outer wall of the grinding box body, grinding rollers are fixedly connected to the output end of the first motors through the grinding box body, a bearing is rotatably connected to the end of the grinding roller away from the first motor, a movable block is fixedly connected to the end of the bearing away from the grinding roller, and a bidirectional threaded rod is threadedly connected inside the movable block. Existing devices in the prior art have poor crushing effect, easily producing a large number of large particles that require multiple grinding and crushing processes. At the same time, the crushed activated carbon particles are not easy to pass through the surface of the filter screen. Therefore, we propose a grinding mill for preparing activated carbon particles. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a grinding mill for preparing activated carbon particles. The activated carbon particles have a better crushing effect and do not need to be crushed and ground multiple times. The crushed particles can be quickly passed through the filter device by air pressure difference, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a grinding mill for preparing activated carbon microparticles, comprising a grinding chamber, a grinding assembly, and a pneumatic unit, characterized in that: Crushing box: Two support frames are fixedly connected to the left and right ends of the outer side, and a grinding assembly and a pneumatic unit are installed at the upper end of the crushing box; Grinding assembly: includes an annular mounting bracket, a grinding disc, annular trapezoidal protrusions, leakage holes, and a sealing cover. The upper end of the grinding box is provided with a sealing cover, and the upper inner side of the sealing cover is provided with an annular mounting bracket. The upper end of the annular mounting bracket is engaged with the grinding disc. The upper end of the grinding disc is provided with multiple annular trapezoidal protrusions, and multiple leakage holes are opened between the annular trapezoidal protrusions at the upper end of the grinding disc.

[0005] The ring-shaped mounting frame has a fixed grinding disc. The annular trapezoidal protrusions on the surface of the grinding disc and the leakage holes form a grinding channel. After the material to be ground is crushed by the protrusions, the particles that meet the particle size fall through the leakage holes. The support frame provides stability to the equipment. It has the advantages of enhanced resistance to deformation due to its annular structure, and the combination of trapezoidal protrusions and leakage holes to achieve crushing and improve the porosity of activated carbon.

[0006] Furthermore, the grinding assembly also includes a motor, a rotating shaft, a rotating rod, a helical gear, a helical gear ring, a rotating grinding wheel, and arc-shaped annular protrusions. The motor is located at the upper center of the sealing cover. The rotating shaft is rotatably connected to the upper center of the inner side of the sealing cover. The outer side of the rotating shaft is rotatably connected to one end of the rotating rod. The other end of the rotating rod is fixedly connected to a helical gear. The rotating grinding wheel is fixedly connected to the outer side of the rotating rod. Multiple arc-shaped annular protrusions are provided on the outer side of the rotating grinding wheel. The arc-shaped annular protrusions fit into the annular trapezoidal protrusions at the upper end of the grinding disc. A helical gear ring is provided on the upper inner side of the grinding box. The helical gear ring meshes with the helical gear.

[0007] The motor drives the rotating shaft to rotate the rotating rod. The helical gear meshes with the helical gear ring, enabling the rotating grinding wheel to revolve and rotate. The arc-shaped ring protrusions cooperate with the grinding disc protrusions to generate multi-directional shearing force. It has the advantages of helical gear transmission to achieve three-dimensional grinding motion and arc-shaped protrusion structure to improve the uniformity of particles.

[0008] Furthermore, the grinding assembly also includes a feed pipe and a solenoid valve. The feed pipe is located at an eccentric position on the upper end of the sealing cover, and the solenoid valve is located on the inner side of the feed pipe.

[0009] The eccentrically positioned feed pipe 35 feeds in raw materials and the feed rate is controlled by the solenoid valve 36. This has the advantages of avoiding material accumulation, achieving precise quantitative feeding, ensuring matching of feeding and grinding speeds, and optimizing material distribution.

[0010] Furthermore, the pneumatic unit includes a second annular mounting bracket, a filter plate, and a conical funnel. The conical funnel is located in the middle of the inner side of the pulverizing box, and a solenoid valve is located in the middle of the inner side of the conical funnel. The second annular mounting bracket is located on the upper side of the middle of the inner side of the pulverizing box, and the filter plate is snapped onto the upper side of the second annular mounting bracket.

[0011] The feeding is controlled by a solenoid valve in the middle of the conical funnel. The filter plate is snapped onto the second ring mounting frame to separate coarse particles. The air pressure difference drives the particles through the filter plate. It has the advantages of a detachable filter plate for easy maintenance and a conical structure to reduce material residue.

[0012] Furthermore, the air pressure unit also includes a one-way air supply pipe, an exhaust fan, a pressure gauge one, and a pressure gauge two. One end of the one-way air supply pipe is connected to the upper part of the inner conical funnel of the grinding box, and the other end of the one-way air supply pipe is connected to the lower part of the inner conical funnel of the grinding box. An exhaust fan is installed on the one-way air supply pipe. A pressure gauge one is installed on the upper part of the outer conical funnel of the grinding box, and a pressure gauge two is installed on the lower part of the outer conical funnel of the grinding box.

[0013] The exhaust fan draws air from below to above through a one-way air supply pipe, creating a pressure difference between the upper and lower parts of the internal conical funnel. Pressure gauges one and two monitor the pressure values. The pressure difference promotes the penetration of particles through the filter plate, which has the advantages of improving the yield of fine powder and ensuring the stability of the system through dual-gauge monitoring.

[0014] Furthermore, it also includes a discharge pipe, a threaded retaining ring, and a storage cylinder. The discharge pipe is provided at the lower middle part of the crushing box, and a solenoid valve is provided on the inner side of the discharge pipe. A threaded retaining ring is fixedly connected to the lower end of the crushing box, and the inner side of the threaded retaining ring is threadedly connected to the outer side of the upper end of the storage cylinder.

[0015] The discharge pipe is controlled by a solenoid valve, and the threaded retaining ring quickly locks the storage cylinder to collect the finished product. It has the advantages of modular storage cylinder for easy replacement and threaded connection to ensure airtightness.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This grinding mill for preparing activated carbon microparticles has the following advantages: 1. This grinding mill for preparing activated carbon microparticles features an annular mounting frame that enhances the overall structural stability. The grinding assembly drives the rotating grinding wheel through the meshing of helical gears and helical gear rings to achieve a combined revolution and rotation motion. The arc-shaped annular protrusions and the trapezoidal protrusions of the grinding disc form multi-directional shearing forces. Combined with the solenoid valve control of the eccentric feed pipe, it achieves uniform distribution and efficient crushing of raw materials.

[0017] 2. This grinding mill for preparing activated carbon microparticles features a threaded retaining ring for quick replacement of the storage cylinder, and a solenoid valve-controlled discharge pipe that forms a closed-loop discharge system with a conical funnel to prevent material residue. The snap-fit ​​structure of the ring mounting bracket simplifies maintenance. The linkage design between the air pressure unit and the grinding components significantly improves the porosity and grinding uniformity of materials such as activated carbon. The air pressure unit uses a conical funnel and a detachable filter plate to form a gradient sorting structure. The air pressure difference established by the exhaust fan, combined with dual pressure gauge monitoring, ensures the fine powder penetration rate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached figures: 1. Crushing box; 2. Support frame; 3. Grinding assembly; 31. Annular mounting frame one; 32. Grinding disc; 33. Annular trapezoidal protrusion; 34. Leakage hole; 35. Feed pipe; 36. Solenoid valve; 37. Motor; 38. Rotating shaft; 39. Rotating rod; 310. Helical gear; 311. Helical gear ring; 312. Rotating grinding wheel; 313. Arc-shaped annular protrusion; 314. Sealing cover; 4. Air pressure unit; 41. Annular mounting frame two; 42. Filter plate; 43. Conical funnel; 44. One-way air supply pipe; 45. Exhaust fan; 46. Air pressure gauge one; 47. Air pressure gauge two; 5. Discharge pipe; 6. Threaded retaining ring; 7. Storage cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This embodiment provides a technical solution: a grinding mill for preparing activated carbon microparticles, comprising a grinding chamber 1, a grinding assembly 3, and a pneumatic unit 4, characterized in that: Crushing box 1: Two support frames 2 are fixedly connected to the left and right ends of the outer side. The grinding assembly 3 and the air pressure unit 4 are installed on the upper end of the crushing box 1. Grinding assembly 3: includes an annular mounting bracket 31, a grinding disc 32, annular trapezoidal protrusions 33, leakage holes 34, and a sealing cover 314. The upper end of the grinding box 1 is provided with a sealing cover 314. The upper part of the inner side of the sealing cover 314 is provided with an annular mounting bracket 31. The upper end of the annular mounting bracket 31 is engaged with the grinding disc 32. The upper end of the grinding disc 32 is provided with multiple annular trapezoidal protrusions 33. Multiple leakage holes 34 are opened between the annular trapezoidal protrusions 33 at the upper end of the grinding disc 32.

[0024] The annular mounting frame 31 fixes the grinding disc 32. The annular trapezoidal protrusions 33 and the leakage holes 34 on the surface of the grinding disc form a grinding channel. After the material to be ground is crushed by the protrusions, the particles that meet the particle size fall through the leakage holes. The support frame 2 provides equipment stability. It has the advantages of annular structure to enhance the resistance to deformation, and the combination of trapezoidal protrusions and leakage holes to achieve crushing and improve the porosity of activated carbon.

[0025] The grinding assembly 3 also includes a motor 37, a rotating shaft 38, a rotating rod 39, a helical gear 310, a helical gear ring 311, a rotating grinding wheel 312, and an arc-shaped annular protrusion 313. The motor 37 is located at the upper center of the sealing cover 314. The rotating shaft 38 is rotatably connected to the upper center of the inner side of the sealing cover 314. The outer side of the rotating shaft 38 is rotatably connected to one end of the rotating rod 39. The other end of the rotating rod 39 is fixedly connected to the helical gear 310. The rotating grinding wheel 312 is fixedly connected to the outer side of the rotating rod 39. Multiple arc-shaped annular protrusions 313 are provided on the outer side of the rotating grinding wheel 312. The arc-shaped annular protrusions 313 fit into the annular trapezoidal protrusions 33 at the upper end of the grinding disc 32. The helical gear ring 311 is provided on the upper inner side of the grinding box 1. The helical gear ring 311 meshes with the helical gear 310.

[0026] The motor 37 drives the rotating shaft 38 to rotate the rotating rod 39. The helical gear 310 meshes with the helical gear ring 311 to make the rotating grinding wheel 312 revolve and rotate. The arc-shaped ring protrusion 313 cooperates with the grinding disc protrusion 33 to generate multi-directional shear force for grinding. It has the advantages of helical gear transmission to realize three-dimensional grinding motion and arc protrusion structure to improve the uniformity of particles.

[0027] The grinding assembly 3 also includes a feed pipe 35 and a solenoid valve 36. The feed pipe 35 is located at the eccentric position of the upper end of the sealing cover 314, and the solenoid valve 36 is located inside the feed pipe 35.

[0028] The eccentrically positioned feed pipe 35 feeds in raw materials and the feed rate is controlled by the solenoid valve 36. This has the advantages of avoiding material accumulation, achieving precise quantitative feeding, ensuring matching of feeding and grinding speeds, and optimizing material distribution.

[0029] The pneumatic unit 4 includes an annular mounting bracket 41, a filter plate 42, and a conical funnel 43. The conical funnel 43 is located in the middle of the inner side of the crushing box 1. A solenoid valve is located in the middle of the inner side of the conical funnel 43. The annular mounting bracket 41 is located on the upper side of the middle of the inner side of the crushing box 1. The filter plate 42 is snapped onto the upper side of the annular mounting bracket 41.

[0030] The feeding is controlled by a solenoid valve in the middle of the conical funnel 43. The filter plate 42 is snapped onto the annular mounting frame 41 to separate coarse particles. The air pressure difference drives the particles through the filter plate. It has the advantages of a detachable filter plate for easy maintenance and a conical structure to reduce material residue.

[0031] The air pressure unit 4 also includes a one-way air supply pipe 44, an exhaust fan 45, a first air pressure gauge 46, and a second air pressure gauge 47. One end of the one-way air supply pipe 44 is connected to the upper part of the inner conical funnel 43 of the crushing box 1, and the other end of the one-way air supply pipe 44 is connected to the lower part of the inner conical funnel 43 of the crushing box 1. An exhaust fan 45 is installed on the one-way air supply pipe 44. A first air pressure gauge 46 is installed on the upper part of the outer conical funnel 43 of the crushing box 1, and a second air pressure gauge 47 is installed on the lower part of the outer conical funnel 43 of the crushing box 1.

[0032] The exhaust fan 45 inputs air from below to above through a one-way air supply pipe 44, creating a pressure difference between the upper and lower parts of the internal conical funnel. Pressure gauge 1 46 and pressure gauge 2 47 monitor the pressure value. The pressure difference promotes the penetration of particles through the filter plate, which has the advantages of improving the yield of fine powder and ensuring the stability of the system through dual-gauge monitoring.

[0033] It also includes a discharge pipe 5, a threaded retaining ring 6, and a storage cylinder 7. The discharge pipe 5 is provided in the middle of the lower end of the crushing box 1. A solenoid valve is provided on the inner side of the discharge pipe 5. The threaded retaining ring 6 is fixedly connected to the lower end of the crushing box 1. The inner side of the threaded retaining ring 6 is threadedly connected to the outer side of the upper end of the storage cylinder 7.

[0034] The discharge pipe 5 is controlled by a solenoid valve to discharge material, and the threaded retaining ring 6 quickly locks the storage cylinder 7 to collect the finished product. It has the advantages of modular storage cylinder for easy replacement and threaded connection to ensure airtightness.

[0035] The working principle of the grinding mill for preparing activated carbon particles provided by this utility model is as follows: During operation, the amount of raw material input is first controlled by the solenoid valve 36 of the feed pipe 35. The material falls between the annular trapezoidal protrusion 33 of the grinding disc 32 and the arc-shaped annular protrusion 313 of the rotating grinding wheel 312. The motor 37 is started to drive the rotating shaft 38. The rotating grinding wheel achieves revolution and rotation through the meshing of the helical gear 310 and the helical gear ring 311. When the filter plate 42 is installed in the crushing box 1, the crushed particles fall into the filter plate 42 through the leakage hole 34. The filter plate 42 can screen the activated carbon powder. After passing through the filter plate 42, the activated carbon powder falls onto the conical funnel 43. Without the filter plate 42 installed, the crushed particles fall directly into the conical funnel 43 through the leakage hole 34. During the grinding process, the exhaust fan 45 is turned on and the discharge pipe 5 and the one-way valve on the conical funnel 43 are closed. A pressure difference is established through the one-way air supply pipe 44. At this time, the space at the bottom of the conical funnel 43 is in a low-pressure state. Then, the bottom valve of the conical funnel 43 is opened. The air pressure will cause the finished activated carbon powder at the top of the conical funnel 43 to enter the storage space below under the pressure of the air pressure. The exhaust fan 45 is turned off and the discharge pipe 5 is opened. The finished powder falls into the storage cylinder 7 through the discharge pipe 5 and is sealed and collected by the threaded fixing ring 6. The pressure gauge 1 46 and pressure gauge 2 47 monitor the pressure difference in real time to ensure the stable operation of the system.

[0036] It is worth noting that in the above embodiments, the input terminals of the solenoid valve 36, motor 37 and exhaust fan 45 are electrically connected to the output terminal of an external power supply through an external PLC controller. The motor 37 is a servo motor. The external PLC controller controls the operation of the solenoid valve 36, motor 37 and exhaust fan 45 using methods commonly used in the prior art.

[0037] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A grinding mill for preparing activated carbon microparticles, comprising a grinding chamber (1), a grinding assembly (3), and a pneumatic unit (4), characterized in that: Crushing box (1): Two support frames (2) are fixedly connected to the left and right ends of the outer side. The upper end of the crushing box (1) is equipped with a grinding assembly (3) and a pneumatic unit (4). Grinding assembly (3): includes an annular mounting bracket (31), a grinding disc (32), annular trapezoidal protrusions (33), and a drain hole (34) and a sealing cover (314). The upper end of the grinding box (1) is provided with a sealing cover (314). The upper part of the inner side of the sealing cover (314) is provided with an annular mounting bracket (31). The upper end of the annular mounting bracket (31) is engaged with the grinding disc (32). The upper end of the grinding disc (32) is provided with multiple annular trapezoidal protrusions (33). Multiple drain holes (34) are opened between the annular trapezoidal protrusions (33) at the upper end of the grinding disc (32).

2. The mill for producing activated carbon particles according to claim 1, wherein: The grinding assembly (3) further includes a motor (37), a rotating shaft (38), a rotating rod (39), a helical gear (310), a helical gear ring (311), a rotating grinding wheel (312), and an arc-shaped annular protrusion (313). The motor (37) is located at the upper center of the sealing cover (314). The rotating shaft (38) is rotatably connected to the upper center of the inner side of the sealing cover (314). The outer side of the rotating shaft (38) is rotatably connected to one end of the rotating rod (39). The other end of the rotating rod (39) is fixedly connected to a helical gear (310). A rotating grinding wheel (312) is fixedly connected to the outside of the rotating rod (39). A plurality of arc-shaped annular protrusions (313) are provided on the outside of the rotating grinding wheel (312). The arc-shaped annular protrusions (313) are matched with the annular trapezoidal protrusions (33) at the upper end of the grinding disc (32). A helical tooth ring (311) is provided on the upper inner side of the crushing box (1). The helical tooth ring (311) meshes with the helical gear (310).

3. The mill for producing activated carbon particles according to claim 2, wherein: The grinding assembly (3) also includes a feed pipe (35) and a solenoid valve (36). The feed pipe (35) is located at the eccentric position of the upper end of the sealing cover (314), and the solenoid valve (36) is located on the inner side of the feed pipe (35).

4. The mill for producing activated carbon particles according to claim 1, wherein: The pneumatic unit (4) includes an annular mounting bracket (41), a filter plate (42) and a conical funnel (43). The conical funnel (43) is provided in the middle of the inner side of the crushing box (1). A solenoid valve is provided in the middle of the inner side of the conical funnel (43). An annular mounting bracket (41) is provided on the upper side of the middle of the inner side of the crushing box (1). The filter plate (42) is snapped onto the upper side of the annular mounting bracket (41).

5. The mill for producing activated carbon particles according to claim 4, wherein: The air pressure unit (4) also includes a one-way air supply pipe (44), a blower (45), a pressure gauge one (46) and a pressure gauge two (47). One end of the one-way air supply pipe (44) is connected to the upper part of the inner conical funnel (43) of the crushing box (1), and the other end of the one-way air supply pipe (44) is connected to the lower part of the inner conical funnel (43) of the crushing box (1). A blower (45) is installed on the one-way air supply pipe (44). A pressure gauge one (46) is installed on the upper part of the outer conical funnel (43) of the crushing box (1), and a pressure gauge two (47) is installed on the lower part of the outer conical funnel (43) of the crushing box (1).

6. The mill for producing activated carbon particles according to claim 1, wherein: It also includes a discharge pipe (5), a threaded retaining ring (6) and a storage cylinder (7). The discharge pipe (5) is provided at the lower middle part of the crushing box (1). A solenoid valve is provided on the inner side of the discharge pipe (5). The lower end of the crushing box (1) is fixedly connected to a threaded retaining ring (6). The inner side of the threaded retaining ring (6) is threadedly connected to the outer side of the upper end of the storage cylinder (7).

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