Crushing and filtering device for carbon black production

Abstract

The utility model discloses a crushing and filtering device for carbon black production. The crushing and filtering device comprises a crushing tank and a filtering tank which are communicated, the interior of the smashing tank is divided into a smashing cavity and a filtering cavity through a filtering plate, an annular blowing disc is arranged at a feeding port of the smashing cavity, a plurality of air nozzles with openings facing the center of the annular blowing disc are arranged in the circumferential direction of the annular blowing disc, and a smashing mechanism is arranged in the smashing cavity; the crushing mechanism comprises a rotating shaft arranged in the crushing cavity and a motor arranged at the top of the crushing tank and connected with the rotating shaft, a plurality of crushing blades are arranged on the rotating shaft, and a plurality of main crushing teeth are arranged on the surfaces of the crushing blades; the filter cavity is communicated with a filter tank, a filter screen is arranged in the filter tank, and a qualified material outlet of the filter tank is communicated with a carbon black storage tank; and the tops of the crushing tank and the filtering tank are communicated with a cyclone separator through exhaust ports. The device not only is high in crushing and filtering efficiency, but also facilitates dust removal of the filter screen, and dust generated in the treatment process is also effectively treated.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon black pretreatment device, concretely relates to a kind of pulverization filtering device for carbon black production. BACKGROUND

[0002] Carbon black is widely used in rubber, plastics, ink, paint and other fields as an important industrial raw material. With the rapid development of the above-mentioned industry, the quality and purity of carbon black is also increasingly high. Especially some industries have strict requirements on the particle size of carbon black, therefore, when producing carbon black, it needs to be pretreated to meet the required particle size, which requires the use of a pulverization filtering device. The current device for pulverizing and filtering carbon black mainly has the following shortcomings: 1. The structure is relatively simple, and the pulverization and filtration effect is not good, which affects the quality of carbon black; 2. The filtering mechanism is easy to block, resulting in a decrease in filtering efficiency; 3. Carbon black particles are easy to fly during pulverization and filtration, causing dust pollution and posing a threat to the production environment and the health of operators. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a pulverization filtering device for carbon black production, which has high pulverization and filtration efficiency, is convenient for cleaning the filter screen, and effectively treats the dust generated during the process.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] A pulverization filtering device for carbon black production, comprising a pulverization tank and a filtering tank connected in communication; the pulverization tank is divided into a pulverization chamber and a filtering chamber by a filter plate; an annular material blowing disc is arranged at the feed inlet of the pulverization chamber; the annular material blowing disc is circumferentially provided with a plurality of jet nozzles with openings facing the center of the annular material blowing disc; a pulverization mechanism is arranged in the pulverization chamber; the pulverization mechanism comprises a rotating shaft arranged in the pulverization chamber, a motor arranged at the top of the pulverization tank and connected with the rotating shaft, a plurality of pulverization blades arranged on the rotating shaft, and a plurality of main pulverization teeth arranged on the surface of the pulverization blades.

[0006] The filtering chamber is in communication with the filtering tank, and a filter screen is arranged in the filtering tank; the qualified material outlet of the filtering tank is connected with a carbon black storage tank.

[0007] The top of the pulverization tank and the top of the filtering tank are connected with a cyclone separator through an exhaust port; the gas outlet of the cyclone separator is connected with a chimney through an induced draft fan; the solid outlet of the cyclone separator and the powder outlet of a vibrating screen are both connected with a carbon black recovery tank; the gas inlet of the exhaust pipe of the cyclone separator is a horn-shaped gas inlet; a first guide vane is arranged on the inner wall of the horn-shaped gas inlet; a plurality of second guide vanes are arranged on the inner wall of the exhaust pipe above the horn-shaped gas inlet.

[0008] Preferably, the feed inlet of the crushing chamber is connected to a feed hopper.

[0009] Preferably, the inner wall of the grinding chamber is provided with multiple auxiliary grinding teeth.

[0010] Preferably, the bottom of the rotating shaft is also provided with a grinding plate, and the bottom of the grinding plate is provided with grinding teeth.

[0011] Preferably, multiple second guide vanes are arranged in a staggered manner.

[0012] Preferably, the filter tank is equipped with a backflushing system, which includes a blowpipe disposed above the filter screen. One end of the blowpipe is connected to a compressed air storage tank. A pulse solenoid valve is provided on the connecting pipe between the blowpipe and the compressed air storage tank. The blowpipe is provided with multiple blowholes facing the filter screen.

[0013] Preferably, the filter canister is further provided with an automatic dust removal system. The automatic dust removal system has a first pressure sensor and a second pressure sensor respectively installed at the upper and lower parts of the filter screen. The first pressure sensor and the second pressure sensor are respectively interlocked with a pulse solenoid valve in the filter canister.

[0014] Preferably, the exhaust pipe of the cyclone separator is equipped with a dust concentration sensor, the connecting pipe between the exhaust pipe and the air inlet of the cyclone separator is equipped with a first electric valve, the connecting pipe between the exhaust pipe and the chimney is equipped with a second electric valve, and the dust concentration sensor is interlocked with the first electric valve, the second electric valve, and the induced draft fan.

[0015] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0016] The utility model provides a kind of comminution filter device for carbon black production, including the comminution tank and filter tank of intercommunication;Comminution tank is divided into comminution cavity and filter cavity by filter plate in it, annular blow material disc is equipped at the feed inlet of comminution cavity, the annular blow material disc is circumferentially equipped with multiple jet nozzles with opening towards annular blow material disc center, comminution mechanism is equipped in comminution cavity, and comminution mechanism includes the rotating shaft being arranged in comminution cavity, motor being arranged in the top of comminution tank and being connected with rotating shaft, multiple comminution blades are equipped on rotating shaft, and multiple main comminution teeth are equipped on the surface of comminution blade;Filter cavity is interconnected with filter tank, filter screen is equipped in filter tank, and qualified material outlet of filter tank is interconnected with carbon black storage tank;The top of comminution tank and filter tank is interconnected with cyclone separator by exhaust port, and the gas outlet of cyclone separator is interconnected with chimney by induced draft fan, and the solid outlet of cyclone separator and the powder outlet of vibrating screen are both interconnected with carbon black recovery tank;The gas inlet of exhaust pipe of cyclone separator is flared gas inlet, and first flow guide vane is equipped on the inner wall of flared gas inlet, and multiple second flow guide vanes are equipped on the inner wall of exhaust pipe above flared gas inlet.The comminution efficiency of above-mentioned comminution tank is high, and annular blow material disc can blow away carbon black material entering into comminution cavity, so that carbon black material is evenly comminuted in comminution cavity.The setting of flared gas inlet can provide more smooth guiding path for airflow entering into exhaust pipe, compared with ordinary straight cylinder gas inlet, it can make more airflow smoothly enter into exhaust pipe, reduce the turbulence and energy loss of airflow at gas inlet, improve the efficiency of airflow entering into exhaust pipe.Moreover, the combined setting of first flow guide vane and second flow guide vane can preliminarily adjust the direction of entering airflow, make airflow more adhere to the inner wall of exhaust pipe, avoid energy loss and vortex generation caused by direct impact of airflow on exhaust pipe wall, help to guide airflow into more regular flow pattern, improve gas-solid separation effect.

[0017] The inner wall of comminution cavity of the device is equipped with multiple auxiliary comminution teeth, and the combined setting of auxiliary comminution teeth and main comminution teeth further improves comminution efficiency.

[0018] The bottom of rotating shaft of the device is further equipped with grinding plate, the bottom of grinding plate is equipped with grinding teeth, and the setting of grinding plate and grinding teeth can further comminute large particle material, improve carbon black comminution efficiency.

[0019] The filter tank of the device is equipped with backblowing system, backblowing system includes spray pipe being arranged above filter screen, one end of spray pipe is interconnected with compressed air storage tank, pulse solenoid valve is equipped on the connecting pipeline of spray pipe and compressed air storage tank, and multiple blow-off ports towards filter screen are equipped on spray pipe.The filter tank is further equipped with automatic dust cleaning system, first pressure sensor and second pressure sensor are respectively equipped on the upper part and lower part of filter screen, and first pressure sensor and second pressure sensor are respectively interconnected with pulse solenoid valve in filter tank.The combined setting of backblowing system and automatic dust cleaning system can automatically clean filter screen of filter tank.

[0020] The exhaust pipe of the cyclone separator in this device is equipped with a dust concentration sensor. A first electric valve is installed on the connecting pipe between the exhaust pipe and the air inlet of the cyclone separator, and a second electric valve is installed on the connecting pipe between the exhaust pipe and the chimney. The dust concentration sensor is interlocked with the first and second electric valves. This configuration effectively recovers carbon black while preventing carbon black dust from being emitted into the atmosphere and polluting it. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of part of the internal structure of a cyclone separator;

[0024] Figure 3 yes Figure 1 Enlarged structural diagram at point A;

[0025] In the diagram, 1. Grinding tank; 2. Filter tank; 3. Filter plate; 4. Grinding chamber; 5. Filter chamber; 6. Feed hopper; 7. Annular blowing disc; 8. Air nozzle; 9. Rotating shaft; 10. Motor; 11. Grinding blades; 12. Main grinding teeth; 13. Filter screen; 14. Carbon black storage tank; 15. Cyclone separator; 16. Exhaust fan; 17. Chimney; 18. Carbon black recovery tank; 19. Exhaust pipe; 20. Horn-shaped air inlet; 21. First guide vane; 22. Second guide vane; 23. Auxiliary grinding teeth; 24. Grinding plate; 25. Grinding teeth; 26. Blowpipe; 27. Compressed air storage tank; 28. Pulse solenoid valve; 29. ​​Blowout nozzle; 30. First pressure sensor; 31. Second pressure sensor; 32. Dust concentration sensor; 33. First electric valve; 34. Second electric valve. Detailed Implementation

[0026] 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 scope of protection of the present utility model.

[0027] Embodiment 1

[0028] With reference to Figures 1-3 As shown in the figure, a kind of pulverization filter device for carbon black production, including the communication pulverization tank 1 and filter tank 2;The pulverization tank 1 is divided into pulverization cavity 4 and filter cavity 5 by filter plate 3, the feed inlet of the pulverization cavity 4 is communicated with feed hopper 6, the feed inlet of the pulverization cavity 4 is equipped with annular blow plate 7, the annular blow plate 7 is circumferentially equipped with multiple jet nozzles 8 with opening towards the center of annular blow plate 7, the pulverization cavity 4 is equipped with pulverization mechanism, the pulverization mechanism includes the rotating shaft 9 arranged in the pulverization cavity 4, the motor 10 arranged at the top of the pulverization tank 1 and connected with the rotating shaft 9, the rotating shaft 9 is equipped with multiple pulverization blades 11, the surface of the pulverization blade 11 is equipped with multiple main pulverization teeth 12;

[0029] The filter cavity 5 is communicated with filter tank 2, the filter tank 2 is equipped with filter screen 13, and the qualified material outlet of the filter tank 2 is communicated with carbon black storage tank 14;

[0030] The top of the pulverization tank 1 and filter tank 2 is communicated with cyclone separator 15 through exhaust port, the gas outlet of the cyclone separator 15 is communicated with chimney 17 through induced draft fan 16, and the solid outlet of the cyclone separator 15 is communicated with carbon black recovery tank 18;The gas inlet of the exhaust pipe 19 of the cyclone separator 15 is flared gas inlet 20, the inner wall of the flared gas inlet 20 is equipped with first guide vane 21, and the inner wall of the exhaust pipe 19 is equipped with multiple second guide vanes 22 above the flared gas inlet 20.

[0031] Based on the above technical scheme, the feed inlet of the pulverization cavity 4 is connected with the feed hopper 6, so that the material enters the pulverization tank 1 uniformly and stably. When feeding, the annular blow plate 7 sprays high-pressure airflow, which blows and guides the material to be pulverized, so that it is uniformly dispersed into the pulverization cavity 4, avoiding the accumulation of material at the feed inlet, and ensuring the uniformity of the subsequent pulverization process. When pulverizing, the pulverization blade 11 and the main pulverization tooth 12 work together to strongly pulverize the carbon black material. After pulverization, the material is preliminarily screened by the filter plate 3, and the qualified material enters the filter cavity 5, and the unqualified material is further pulverized in the pulverization cavity 4, further improving the pulverization effect. The pulverized material is further screened in the filter tank 2, and the screened qualified material enters the carbon black storage tank 14. The exhaust gas generated during the use of the pulverization tank 1 and the filter tank 2 is separated and treated by the cyclone separator 15, the separated gas is discharged up to standard, and the separated solid powder is recycled.

[0032] Further, in the embodiment, the inner wall of the crushing cavity 4 is provided with a plurality of auxiliary crushing teeth 23. The plurality of auxiliary crushing teeth 23 cooperate with the main crushing teeth 12 to make the carbon black material in the crushing cavity 4 receive more frequent forces, thereby improving the overall crushing efficiency. Moreover, the auxiliary crushing teeth 23 are distributed on the inner wall of the crushing cavity 4, which can act on the carbon black material from different angles, avoiding the situation that the material is over-crushed or not fully crushed in the crushing process, and helping to achieve more uniform crushing effect, so that the particle size of the crushed material is more consistent.

[0033] Further, in the embodiment, the bottom of the rotating shaft 9 is further provided with a grinding plate 24, and the bottom of the grinding plate 24 is provided with grinding teeth 25. The rotating shaft 9 drives the grinding plate 24 to rotate, and the grinding teeth 25 on the grinding plate 24 produce relative motion with the filter plate 3 or the carbon black material, which helps to further grind the large-particle material intercepted by the filter plate 3 into smaller particles, and also promotes the uniform distribution of the material on the surface of the filter plate 3, improving the filtering efficiency.

[0034] Further, in the embodiment, the plurality of second guide vanes 22 are arranged in cross staggered manner. Through the cross staggered second guide vanes 22, the gas flow in the exhaust pipe 19 forms a more complex and orderly flow state, which helps to reduce the generation of vortex and backflow area, thereby reducing the flow resistance. Moreover, the optimized gas flow helps to better separate solid particles from the gas flow, improving the overall separation efficiency of the cyclone separator 15.

[0035] Further, in the embodiment, the filter tank 2 is provided with a back flushing system, the back flushing system comprises a blowing pipe 26 arranged above the filter screen 13, one end of the blowing pipe 26 is communicated with a compressed air storage tank 27, a pulse solenoid valve 28 is arranged on the connecting pipeline between the blowing pipe 26 and the compressed air storage tank 27, and a plurality of blowing openings 29 of the blowing pipe 26 are arranged towards the filter screen 13; further, the filter tank 2 is also provided with an automatic dust cleaning system, the automatic dust cleaning system is provided with a first pressure sensor 30 and a second pressure sensor 31 at the upper part and the lower part of the filter screen 13 respectively, and the first pressure sensor 30 and the second pressure sensor 31 are connected with the pulse solenoid valve 28 in the filter tank 2. Through the joint arrangement of the back flushing system and the automatic dust cleaning system, the filter tank 2 is prevented from being blocked. Specifically, the first pressure sensor 30 is used for monitoring the pressure change at the inlet of the filter screen 13, and the second pressure sensor 31 is used for monitoring the pressure change at the outlet of the filter screen 13, and the two sensors can reflect the blocking degree of the filter screen 13 in real time. When the pressure difference caused by the blocking of the filter screen 13 exceeds the preset value, the sensor sends a signal to an external control system (not shown in the figure), and the external control system then starts the pulse solenoid valve 28, and compressed air is sprayed to the surface of the filter screen 13 through the blowing pipe 26, so as to efficiently remove the dust on the filter screen 13 and maintain the smoothness and efficient filtering performance of the filter screen 13.

[0036] Further, in the embodiment, the filter tank 2 is provided with a back flushing system, the back flushing system comprises a blowing pipe 26 arranged above the filter screen 13, one end of the blowing pipe 26 is communicated with a compressed air storage tank 27, a pulse solenoid valve 28 is arranged on the connecting pipeline between the blowing pipe 26 and the compressed air storage tank 27, and a plurality of blowing openings 29 of the blowing pipe 26 are arranged towards the filter screen 13; further, the filter tank 2 is also provided with an automatic dust cleaning system, the automatic dust cleaning system is provided with a first pressure sensor 30 and a second pressure sensor 31 at the upper part and the lower part of the filter screen 13 respectively, and the first pressure sensor 30 and the second pressure sensor 31 are connected with the pulse solenoid valve 28 in the filter tank 2. Through the joint arrangement of the back flushing system and the automatic dust cleaning system, the filter tank 2 is prevented from being blocked. Specifically, the first pressure sensor 30 is used for monitoring the pressure change at the inlet of the filter screen 13, and the second pressure sensor 31 is used for monitoring the pressure change at the outlet of the filter screen 13, and the two sensors can reflect the blocking degree of the filter screen 13 in real time. When the pressure difference caused by the blocking of the filter screen 13 exceeds the preset value, the sensor sends a signal to an external control system (not shown in the figure), and the external control system then starts the pulse solenoid valve 28, and compressed air is sprayed to the surface of the filter screen 13 through the blowing pipe 26, so as to efficiently remove the dust on the filter screen 13 and maintain the smoothness and efficient filtering performance of the filter screen 13.

[0037] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pulverizing filter device for carbon black production, characterized by: The application relates to a carbon black production device, which comprises a communication pulverizing tank and a filtering tank; the pulverizing tank is divided into a pulverizing cavity and a filtering cavity by a filter plate; an annular blowing disc is arranged at a feeding port of the pulverizing cavity; a plurality of air jet nozzles, which are open towards the center of the annular blowing disc, are arranged in the circumferential direction of the annular blowing disc; a pulverizing mechanism is arranged in the pulverizing cavity; the pulverizing mechanism comprises a rotating shaft arranged in the pulverizing cavity, a motor arranged at the top of the pulverizing tank and connected with the rotating shaft; a plurality of pulverizing blades are arranged on the rotating shaft; and a plurality of main pulverizing teeth are arranged on the surface of the pulverizing blades. The filtering cavity is communicated with the filtering tank; a filter screen is arranged in the filtering tank; and a qualified material outlet of the filtering tank is communicated with a carbon black storage tank. The top of the pulverizing tank and the top of the filtering tank are both communicated with a cyclone separator through exhaust ports; the gas outlet of the cyclone separator is communicated with a chimney through an induced draft fan; the solid outlet of the cyclone separator is communicated with a carbon black recovery tank; the air inlet of the exhaust pipe of the cyclone separator is a horn-shaped air inlet; a first guide vane is arranged on the inner wall of the horn-shaped air inlet; and a plurality of second guide vanes are arranged on the inner wall of the exhaust pipe above the horn-shaped air inlet.

2. The crushing and filtering device for carbon black production according to claim 1, characterized in that: The feeding port of the pulverizing cavity is communicated with a feeding hopper.

3. The crushing and filtering device for carbon black production according to claim 1, characterized in that: A plurality of auxiliary pulverizing teeth are arranged on the inner wall of the pulverizing cavity.

4. The crushing and filtering device for carbon black production according to claim 1, characterized in that: The bottom of the rotating shaft is further provided with a grinding plate; and the bottom of the grinding plate is provided with grinding teeth.

5. The crushing and filtering device for carbon black production according to claim 1, characterized in that: The plurality of second guide vanes are arranged in an intersecting and staggered mode.

6. The crushing and filtering device for carbon black production according to claim 1, characterized in that: The filtering tank is further provided with a back-blowing system; the back-blowing system comprises a blowing pipe arranged above the filter screen; one end of the blowing pipe is communicated with a compressed air storage tank; a pulse electromagnetic valve is arranged on the connecting pipeline between the blowing pipe and the compressed air storage tank; and a plurality of blowing ports are arranged on the blowing pipe and directed towards the filter screen.

7. The crushing and filtering device for carbon black production according to claim 1, characterized in that: The filtering tank is further provided with an automatic dust cleaning system; the automatic dust cleaning system is provided with a first pressure sensor and a second pressure sensor above and below the filter screen respectively; and the first pressure sensor and the second pressure sensor are respectively connected with the pulse electromagnetic valve in the filtering tank.

8. The crushing and filtering device for carbon black production according to claim 1, characterized in that: A dust concentration sensor is arranged on the exhaust pipe of the cyclone separator; a first electric valve is arranged on the connecting pipeline between the exhaust pipe and the air inlet of the cyclone separator; a second electric valve is arranged on the connecting pipeline between the exhaust pipe and the chimney; and the dust concentration sensor, the first electric valve and the second electric valve, and the induced draft fan are connected in a chain mode.

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