Efficient grading and pulverizing device for acetylene black

Abstract

The utility model discloses an efficient grading and crushing device for acetylene carbon black, including cyclone separator and cloth bag collector, the air inlet of cyclone separator is connected with negative pressure pneumatic conveying system, the air outlet of cyclone separator is connected with cloth bag collector, the lower end discharge gate position of cyclone separator is provided with the wing valve, the lower end of wing valve stretches into the grinding bin, the utility model relates to the technical field of acetylene carbon black production, and acetylene carbon black product is conveyed to cyclone separator through negative pressure pneumatic system, and realizes particle grading in dependence on high -speed rotation centrifugal force, and carbon black powder enters cloth bag dust collector and is collected under the action of airflow, and coke particle and coarse granule carbon black in acetylene carbon black product then settle in the lower part of cyclone separator and enter the grinding bin in the wing valve, under the action of gravity, coke particle and coarse granule carbon black enter double -sided crushing of pair -roll type crushing subassembly and rotary grinding assembly in proper order and carry out double -sided crushing to improve grading and crushing operation efficiency effectively.

Description

Technical Field

[0001] This utility model relates to the field of acetylene black production technology, specifically to an efficient acetylene black grading and pulverizing device. Background Technology

[0002] Acetylene black is a special type of carbon black. It is produced by continuously pyrolyzing acetylene gas with a purity of over 99%, obtained from the decomposition and refining of byproducts during the pyrolysis of calcium carbide or naphtha (crude gasoline). Acetylene black is mainly used for electrical conductivity, thermal conductivity, antistatic properties, coloring, and reinforcement. During the production of acetylene black, it is necessary to grind the coke particles or coarse carbon black to remove coke lumps and grind them into fine particles to improve the quality of the acetylene black. Chinese patent application CN202421256425.4 discloses a coke particle crushing device for the acetylene black production process. This scheme uses a set of crushing blades to crush the coke particles of acetylene black inside. However, in actual production, the proportion of coke particles and coarse particles in acetylene black is not high. Therefore, using a set of crushing blades results in low operating efficiency and mediocre crushing effect. In view of this, this application was developed to address these problems through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a high-efficiency classifying and pulverizing device for acetylene carbon black, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an acetylene carbon black high-efficiency classification and pulverizing device, comprising a cyclone separator and a bag collector, wherein the air inlet of the cyclone separator is connected to a negative pressure pneumatic conveying system, the air outlet of the cyclone separator is connected to the bag collector, a wing valve is provided at the lower discharge port of the cyclone separator, the lower end of the wing valve extends into the grinding chamber, a combined grinding mechanism is provided in the grinding chamber, and a collection hopper is provided at the lower part of the grinding chamber; The combined grinding mechanism includes a roller crushing assembly, a feed trough, and a rotary grinding assembly. The roller crushing assembly is located inside the grinding chamber and directly opposite the lower outlet of the wing valve. The feed trough is located below the roller grinding assembly, and the rotary grinding assembly is located at the lower part of the feed trough.

[0005] The aforementioned roller crushing assembly includes a rotating shaft symmetrically arranged within a grinding chamber, on which a grinding roller is fixedly mounted, and a drive assembly is connected to the exposed end of the rotating shaft.

[0006] The aforementioned feed trough is symmetrically provided with supports, and a crossbeam is installed on the supports. A scraper is provided on the crossbeam, and the end face of the scraper is in contact with the outer wall of the roller.

[0007] The aforementioned rotary grinding assembly includes a fixed grinding disc, a spacing adjustment component, a rotary drive component, a transmission shaft, and a movable grinding disc. The fixed grinding disc is disposed inside the grinding chamber and located below the guide trough. The spacing adjustment component is disposed on one side of the grinding chamber. The rotary drive component is disposed on the movable end of the spacing adjustment component. One end of the transmission shaft is connected to the output end of the rotary drive component, and the other end extends into the grinding chamber. The movable grinding disc is disposed on the other end of the transmission shaft.

[0008] The aforementioned spacing adjustment assembly includes a lead screw module, a guide rail, and a movable seat. The guide rail is symmetrically arranged on both sides of the lead screw module, and the movable seat is mounted on the movable end of the lead screw module and slides in cooperation with the guide rail.

[0009] The aforementioned rotary drive includes a mounting base, a rotary motor, and a reducer. The mounting base is mounted on a movable base. The input end of the reducer is connected to the drive end of the rotary motor, and the output end is connected to the transmission shaft. Beneficial effects

[0010] This invention provides a high-efficiency grading and pulverizing device for acetylene black. It offers the following advantages: Before pulverization, the acetylene black product is conveyed to a cyclone separator via a negative pressure pneumatic system. High-speed centrifugal force is used to achieve particle grading. The carbon black powder is collected by a bag filter under the influence of airflow. The coke particles and coarse carbon black in the acetylene black product settle at the bottom of the cyclone separator and enter the grinding chamber via a wing valve. Under gravity, the coke particles and coarse carbon black sequentially enter the roller crushing assembly and the rotary grinding assembly for dual pulverization, thereby effectively improving the efficiency of the grading and pulverizing operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of the acetylene carbon black high-efficiency classification and pulverizing device described in this utility model.

[0012] Figure 2 This utility model Figure 1 A partially enlarged structural diagram.

[0013] Figure 3 This utility model Figure 2 A side view structural diagram.

[0014] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at position 'a' in the diagram.

[0015] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at position b in the diagram.

[0016] In the diagram: 1. Cyclone separator; 2. Bag collector; 3. Negative pressure pneumatic conveying system; 4. Wing valve; 5. Grinding chamber; 6. Feed chute; 7. Rotary shaft; 8. Grinding roller; 9. Drive assembly; 10. Support; 11. Scraper; 12. Fixed grinding disc; 13. Drive shaft; 14. Moving grinding disc; 15. Lead screw module; 16. Guide rail; 17. Moving seat; 18. Mounting seat; 19. Rotary motor; 20. Reducer. Detailed Implementation

[0017] 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.

[0018] Example: Refer to the appendix of the instruction manual Figure 1-5 As can be seen, this application specifically designs a high-efficiency grading and pulverizing device for acetylene carbon black, including a cyclone separator 1 and a bag collector 2. The air inlet of the cyclone separator 1 is connected to a negative pressure pneumatic conveying system 3, and the air outlet of the cyclone separator 1 is connected to the bag collector 2. A wing valve 4 is provided at the lower discharge port of the cyclone separator 1. The lower end of the wing valve 4 extends into the grinding chamber 5. A combined grinding mechanism is provided inside the grinding chamber 5, and a collection hopper is provided at the lower part of the grinding chamber 5. The combined grinding mechanism includes a roller crushing component, a guide trough 6, and a rotary grinding component. The roller crushing component is located inside the grinding chamber 5 and is directly opposite the lower outlet of the wing valve 4. The feed chute 6 is located below the roller grinding assembly, and the rotary grinding assembly is located below the feed chute 6. Before crushing, the acetylene black product is conveyed to the cyclone separator 1 through the negative pressure pneumatic conveying system 3. The particles are classified by high-speed rotation centrifugal force. The carbon black powder enters the bag dust collector for collection under the action of airflow. The coke particles and coarse carbon black particles in the acetylene black product settle at the bottom of the cyclone separator 1 and enter the grinding chamber 5 through the wing valve 4. Under the action of gravity, the coke particles and coarse carbon black particles enter the roller crushing assembly and the rotary grinding assembly in sequence for double crushing, thereby effectively improving the efficiency of the classification and crushing operation.

[0019] In specific implementation, as a preferred configuration, the above-mentioned roller crushing assembly includes a rotating shaft 7 symmetrically arranged in the grinding chamber 5, with a grinding roller 8 fixedly mounted on the rotating shaft 7. The exposed end of the rotating shaft 7 is connected to a drive assembly 9. The rotation of the rotating shaft 7 is controlled by the drive assembly 9, thereby controlling the rotation of the grinding roller 8, so that the two grinding rollers 8 rotate towards each other, thereby crushing the coke particles or coarse carbon black particles passing through the gap between the two grinding rollers 8. It should be noted that the form and structural design of the drive assembly 9 can be found in the drive control structure used in the high-power double toothed roller grading crusher produced by Huashengming Heavy Industry Machinery.

[0020] In the specific implementation process, as a preferred setting, the above-mentioned feed trough 6 is symmetrically provided with support 10, a cross frame is installed on the support 10, and a scraper 11 is provided on the cross frame. The end face of the scraper 11 is in contact with the outer wall of the roller 8. During the crushing process of the roller 8, some carbon black powder will adhere to the surface of the roller 8. The scraper 11 can scrape off this part of the adhered carbon black powder.

[0021] In a preferred embodiment, the rotary grinding assembly includes a fixed grinding disc 12, a spacing adjustment component, a rotary drive, a transmission shaft 13, and a movable grinding disc 14. The fixed grinding disc 12 is located inside the grinding chamber 5 and below the guide trough 6. The spacing adjustment component is located on one side of the grinding chamber 5. The rotary drive is located on the movable end of the spacing adjustment component. One end of the transmission shaft 13 is connected to the output end of the rotary drive, and the other end extends into the grinding chamber 5. The movable grinding disc 14 is located on the other end of the transmission shaft 13. The spacing adjustment component includes a lead screw module 15, a guide rail 16, and a movable seat 17. The guide rail 16 is symmetrically arranged on both sides of the lead screw module 15. The movable seat 17 is mounted on the movable end of the lead screw module 15 and slides with the guide rail 16. The rotary drive unit includes a mounting base 18, a rotary motor 19, and a reducer 20. The mounting base 18 is mounted on a movable base 17. The input end of the reducer 20 is connected to the drive end of the rotary motor 19, and the output end is connected to the transmission shaft 13. The position of the movable base 17 can be adjusted through the lead screw module 15, thereby adjusting the gap between the movable grinding disc 14 and the fixed grinding disc 12 to meet the needs of acetylene black production with different particle sizes. The cooperation between the rotary motor 19 and the reducer 20 can realize the rotation control of the transmission shaft 13 and the movable grinding disc 14, so that the movable grinding disc 14 rotates and, with the cooperation of the fixed grinding disc 12, further pulverizes the coke particles and carbon black particles after preliminary pulverization. The structure is simple and the pulverization efficiency is high.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency classifying and pulverizing device for acetylene carbon black, comprising a cyclone separator and a bag filter collector, characterized in that, The air inlet of the cyclone separator is connected to the negative pressure pneumatic conveying system, the air outlet of the cyclone separator is connected to the bag collector, a wing valve is provided at the lower discharge port of the cyclone separator, the lower end of the wing valve extends into the grinding chamber, a combined grinding mechanism is provided in the grinding chamber, and a collection hopper is provided at the lower part of the grinding chamber; The combined grinding mechanism includes a roller crushing assembly, a feed trough, and a rotary grinding assembly. The roller crushing assembly is located inside the grinding chamber and directly opposite the lower outlet of the wing valve. The feed trough is located below the roller grinding assembly, and the rotary grinding assembly is located at the lower part of the feed trough.

2. The acetylene carbon black high-efficiency classifying and pulverizing device according to claim 1, characterized in that, The roller crushing assembly includes a rotating shaft symmetrically arranged in the grinding chamber, on which a grinding roller is fixedly mounted, and the exposed end of the rotating shaft is connected to a drive assembly.

3. The acetylene carbon black high-efficiency classifying and pulverizing device according to claim 2, characterized in that, The feed trough is symmetrically provided with supports, and a cross frame is installed on the supports. A scraper is provided on the cross frame, and the end face of the scraper is in contact with the outer wall of the roller.

4. The acetylene carbon black high-efficiency classifying and pulverizing device according to claim 1, characterized in that, The rotary grinding assembly includes a fixed grinding disc, a spacing adjustment component, a rotary drive component, a transmission shaft, and a movable grinding disc. The fixed grinding disc is disposed inside the grinding chamber and located below the feed trough. The spacing adjustment component is disposed on one side of the grinding chamber. The rotary drive component is disposed on the movable end of the spacing adjustment component. One end of the transmission shaft is connected to the output end of the rotary drive component, and the other end extends into the grinding chamber. The movable grinding disc is disposed on the other end of the transmission shaft.

5. The acetylene carbon black high-efficiency classifying and pulverizing device according to claim 4, characterized in that, The spacing adjustment assembly includes a lead screw module, a guide rail, and a movable seat. The guide rail is symmetrically arranged on both sides of the lead screw module, and the movable seat is installed on the movable end of the lead screw module and slides in cooperation with the guide rail.

6. The acetylene carbon black high-efficiency classifying and pulverizing device according to claim 5, characterized in that, The rotary drive includes a mounting base, a rotary motor, and a reducer. The mounting base is mounted on a movable base. The input end of the reducer is connected to the drive end of the rotary motor, and the output end is connected to the transmission shaft.

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