Carbon black production and collection device

Abstract

The carbon black production and collection device comprises a shell, a filtering assembly, a sweeping assembly and a sweeping and blowing assembly, the bottom section of the shell is in a funnel shape, a discharging port is formed in the bottom end, an air inlet is formed in the side face of the bottom, and an air outlet is formed in the top; the filtering assembly divides the interior of the shell into a filtering chamber and a sweeping and blowing chamber, and the filtering assembly comprises a partition plate and a filtering bag; the cleaning assembly is arranged in the filtering chamber and comprises a lifting table and a cleaning brush; the sweeping and blowing assembly is arranged in the sweeping and blowing chamber and comprises a compressed air bag, a sweeping and blowing valve, an air conveying pipe, a sweeping and blowing pipe, an air spraying head, a supporting plate and a pressure difference sensor. According to the utility model, the sweeping and blowing effect on the filter bag can be improved, carbon black residues on the filter bag are reduced, and the service life of the filter bag is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of carbon black production, and in particular to a carbon black production and collection device. Background Art

[0002] The carbon black pulse bag filter is the main device for carbon black gas-solid separation. It filters the carbon black flue gas through the filter bag to separate the carbon black, and sprays a high-pressure airflow from the other side of the filter bag for sweeping and blowing to blow the carbon black off the filter bag for collection. In the existing carbon black pulse bag filter, only a sweeping port is usually set above the filter bag. Since the filter bag is long, the airflow pressure is smaller near the bottom of the filter bag, and the sweeping effect is worse. Therefore, it is easy to cause carbon black accumulation at the bottom of the filter bag, affecting the filtration efficiency and filtration effect. At the same time, it also increases the weight of the filter bag, thereby accelerating the damage of the filter bag and shortening the service life of the filter bag. On the other hand, as time goes by, the carbon black on the surface of the filter bag cannot be fully collected by sweeping and blowing alone, and the collection efficiency will gradually decrease. Summary of the invention

[0003] The purpose of the utility model is to provide a carbon black production and collection device, which can improve the sweeping and blowing effect on the filter bag, reduce the carbon black residue on the filter bag, and extend the service life of the filter bag.

[0004] The technical solution adopted by the utility model is: a carbon black production and collection device, including a shell, a filter component, a cleaning component and a purge component, the bottom cross-section of the shell is funnel-shaped, the bottom end is provided with a discharge port, the bottom side is provided with an air inlet, and the top is provided with an air outlet; the filter component is arranged in the middle section of the shell, and the inside of the shell is divided into a lower filter chamber and an upper purge chamber, the filter component includes a partition and a filter bag, the partition is arranged inside the shell, and the partition is provided with filter bag mounting holes in an array, the filter bag is arranged on the partition and passes through the filter bag mounting holes and hangs down into the filter chamber; the cleaning component is provided in a manner similar to the embodiment of the present invention. The component is arranged in the filter chamber, including a lifting platform and a cleaning brush. The cleaning brush is arranged on the lifting platform and is arranged corresponding to the gap between the filter bag and the shell or between two adjacent filter bags; the purge assembly is arranged in the purge chamber, including a compressed air bag, a purge valve, an air supply pipe, a purge pipe, a nozzle, a support plate and a pressure difference sensor. The compressed air bag and the purge pipe are connected through the air supply pipe, the air supply pipe is provided with a purge valve, the purge pipe extends into the filter bag, the purge pipe is provided with a nozzle, a support plate is arranged at the bottom of the purge pipe, one end of the pressure difference sensor extends into the filter chamber, and the other end extends into the purge chamber.

[0005] Furthermore, the partition plate and the support plate are both mesh structures.

[0006] Furthermore, the lifting platform includes a base bracket, a first electric telescopic rod and a supporting bracket, the base bracket is arranged at the bottom end of the shell, one end of the first electric telescopic rod is connected to the base bracket, and the other end is connected to the supporting bracket, and the cleaning brush is arranged on the supporting bracket.

[0007] Furthermore, the base support includes a disc support and long strip supports distributed in a cross shape around the disc support, and the cross-sections of the long strip supports and the supporting support are triangular.

[0008] Furthermore, the support plate and the brush body of the cleaning brush are both rectangular, and bristles are arranged on the sides of the brush body.

[0009] Furthermore, a second electric telescopic rod is arranged between the bottom of the purge pipe and the support plate.

[0010] The beneficial effects of the utility model are:

[0011] (1) The utility model uses a purge pipe and a jet nozzle that extend into the filter bag to purge the filter bag, thereby overcoming the defect of the existing carbon black pulse bag filter that the closer to the bottom of the filter bag, the smaller the air flow pressure is, and the worse the purge effect is. The pressure difference between the filter chamber and the purge chamber is detected by a pressure difference sensor. When the pressure difference reaches a preset value, the purge assembly is started to purge the filter bag, thereby maintaining a sufficient pressure difference on both sides of the filter bag, maintaining the separation effect of the filter bag, and preventing clogging.

[0012] (2) The filter bag can be cleaned by the cleaning component, and the carbon black attached to the filter bag that cannot be cleaned by the sweeping and blowing method or the carbon black located in the dead corner of the sweeping and blowing can be cleaned off, thereby improving the cleaning effect of the filter bag, reducing the carbon black residue on the filter bag, and extending the service life of the filter bag;

[0013] (3) In the process of filtering carbon black smoke, the filter bag is stretched open by the partition and the support plate to prevent the filter bag from adhering or sticking together due to the impact of airflow, which affects the filtering effect. The partition and the support plate are both mesh structures to avoid affecting the filtering effect at the connection between the partition and the support plate and the filter bag; the position of the support plate can be adjusted by the second electric telescopic rod. During filtering, the second electric telescopic rod is extended to the longest length to stretch the filter bag to ensure the filtering effect. During sweeping and blowing, the second electric telescopic rod is shortened to the shortest length to prevent the filter bag from bulging during sweeping and blowing and the support plate from damaging the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the use state of the embodiment of the utility model in the sweeping and blowing state;

[0017] Figure 3 This is a schematic diagram of the use state of the embodiment of the utility model in the cleaning state;

[0018] Figure 4 Schematic diagram of the structure of the base bracket in the embodiment of the utility model; wherein (a) is a top view of the base bracket, and (b) is a side view of the base bracket;

[0019] Figure 5 A top view of a cleaning assembly in an embodiment of the utility model;

[0020] Figure 6 A bottom view of the sweep and blow assembly in the embodiment of the utility model;

[0021] Figure 7 It is a schematic diagram of the structure of the partition in the embodiment of the utility model.

[0022] Explanation of the accompanying drawings: 1-shell, 2-discharge port, 3-air inlet, 4-air outlet, 5-filter chamber, 6-purge chamber, 7-partition, 8-filter bag, 9-filter bag mounting hole, 10-cleaning brush, 11-compressed air bag, 12-purge valve, 13-air pipe, 14-purge pipe, 15-nozzle head, 16-support plate, 17-pressure difference sensor, 18-base bracket, 19-first electric telescopic rod, 20-support bracket, 21-disc bracket, 22-strip bracket, 23-second electric telescopic rod. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and therefore, the utility model is not limited to the limitations of the specific embodiments disclosed below.

[0024] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field described in this application. The words "first", "second" and similar terms used in this patent application specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0025] like Figure 1 to Figure 7 As shown, a carbon black production and collection device comprises a housing 1, a filter assembly, a cleaning assembly and a purge assembly. The bottom cross-section of the housing 1 is funnel-shaped, and a discharge port 2 is provided at the bottom end for discharging the carbon black collected on the filter assembly; an air inlet 3 is provided on the bottom side of the housing 1, and an air outlet 4 is provided on the top. The carbon black smoke enters the housing 1 from the air inlet 3, is separated from the carbon black by the filter assembly, and the filtered gas is discharged through the air outlet 4.

[0026] The filter assembly is arranged in the middle section of the housing 1, and the housing 1 is divided into a lower filter chamber 5 and an upper purge chamber 6. The filter assembly includes a partition 7 and a filter bag 8. The partition 7 is arranged in the housing 1, and a filter bag mounting hole 9 is arranged in an array on the partition 7. The filter bag 8 is arranged on the partition 7 and passes through the filter bag mounting hole 9 and hangs into the filter chamber 5. Carbon black is attached to the side of the filter bag 8 facing the filter chamber 5, and the purge assembly purges and blows the side of the filter bag 8 facing the purge chamber 6, blows off the carbon black and discharges it from the discharge port 2.

[0027] The cleaning assembly is arranged in the filter chamber 5, including a lifting platform and a cleaning brush 10. The cleaning brush 10 is arranged on the lifting platform and is arranged corresponding to the gap between the filter bag 8 and the housing 1 or between two adjacent filter bags 8. In the embodiment of the utility model, the lifting platform includes a base bracket 18, a first electric telescopic rod 19 and a supporting bracket 20. The base bracket 18 is arranged at the bottom of the housing 1. One end of the first electric telescopic rod 19 is connected to the base bracket 18, and the other end is connected to the supporting bracket 20. The cleaning brush 10 is arranged on the supporting bracket 20. The base bracket 18 includes a disc bracket 21 and a long strip bracket 22 distributed in a cross shape around the disc bracket 21. The cross-sections of the long strip bracket 22 and the supporting bracket 20 are triangular, so as to prevent the cleaned carbon black from accumulating on the long strip bracket 22 or the supporting bracket 20. The brush bodies of the support plate 16 and the cleaning brush 10 are both rectangular, and bristles are arranged on the sides of the brush bodies. The cleaning brush 10 can be driven to move up and down by the lifting platform. During the movement, the cleaning brush 10 can sweep away the carbon black that has not been blown off by the sweeping and blowing assembly on the filter bag 8, thereby reducing the carbon black residue on the filter bag 8 and extending the service life of the filter bag 8.

[0028] The purge assembly is arranged in the purge chamber 6, and includes a compressed air bag 11, a purge valve 12, an air pipe 13, a purge pipe 14, an air nozzle 15, a support plate 16 and a pressure difference sensor 17. The compressed air bag 11 and the purge pipe 14 are connected through the air pipe 13, the air pipe 13 is provided with a purge valve 12, the purge pipe 14 extends into the filter bag 8, the purge pipe 14 is provided with an air nozzle 15, a support plate 16 is provided at the bottom of the purge pipe 14, and one end of the pressure difference sensor 17 extends into the filter chamber 5, and the other end extends into the purge chamber 6. The pressure difference between the filter chamber 5 and the purge chamber 6 can be detected by the pressure difference sensor 17, and the purge assembly is started to purge the filter bag 8 when the pressure difference reaches a preset value, so that the pressure difference on both sides of the filter bag 8 is maintained to maintain the separation effect of the filter bag 8 and prevent blockage. The support plate 16 cooperates with the partition plate 7 to open the filter bag 8 during the process of filtering the carbon black smoke, so as to prevent the filter bag 8 from being attached or bonded together due to the impact of the airflow, thereby affecting the filtering effect. In the embodiment of the utility model, both the partition plate 7 and the support plate 16 are mesh structures, so as to avoid affecting the filtering effect at the connection between the partition plate 7 and the support plate 16 and the filter bag 8. In addition, a second electric telescopic rod 23 is also provided between the bottom of the purge pipe 14 and the support plate 16. The position of the support plate 16 can be adjusted by the second electric telescopic rod 23. When filtering, the second electric telescopic rod 23 is extended to the longest length to open the filter bag 8 to ensure the filtering effect. When purge, the second electric telescopic rod 23 is shortened to the shortest length to prevent the filter bag 8 from bulging during purge and the support plate 16 from damaging the filter bag 8.

[0029] The working principle of the embodiment of the utility model is as follows:

[0030] When in use, the pressure difference sensor 17, the first electric telescopic rod 19, the second electric telescopic rod 23 and the purge valve 12 are connected to the controller in the control room of the production workshop to automatically control the embodiment of the utility model.

[0031] In the filtering state, the use state of the embodiment of the utility model is as follows Figure 1 As shown, the first telescopic rod is at its shortest length, the cleaning brush 10 does not contact the filter bag 8, the second electric telescopic rod 23 is at its longest length, the support plate 16 fully opens the filter bag 8, and each filter bag 8 is in a rectangular parallelepiped state. The discharge port 2 and the purge valve 12 are closed and the air inlet 3 and the air outlet 4 are opened, the carbon black smoke enters the housing 1 from the air inlet 3, the carbon black is separated by the filter bag 8, and the filtered gas is discharged through the air outlet 4.

[0032] During the filtration process, the pressure difference sensor 17 detects the pressure difference between the filter chamber 5 and the purge chamber 6 in real time. When the pressure difference drops to a preset value for purge, the purge valve 12 is opened to enter the filtering process. Figure 2 In the purge state shown, pulsed compressed air with a certain pressure is introduced for purge. At the same time, the second electric telescopic rod 23 is shortened to the shortest length, leaving space for the shape change of the filter bag 8 during the purge process to prevent the support plate 16 from scratching the filter bag 8. The air inlet 3 is closed and the introduction of carbon black smoke is stopped. Pulse compressed air is ejected from the nozzle 15 and sprayed on the surface of the filter bag 8. The filter bag 8 expands intermittently under the action of the pulsed compressed air, and the side of the filter bag 8 is deformed, thereby blowing off the carbon black attached to the surface of the filter bag 8. When the pressure difference between the detection filter chamber 5 and the purge chamber 6 by the pressure difference sensor 17 is restored to the set value for filtering, the purge valve 12 is closed, the second electric telescopic rod 23 is extended to the longest length to reopen the filter bag 8, and the air inlet 3 is opened to continue filtering.

[0033] Since the sweeping and blowing method cannot completely clean the carbon black attached to the surface of the filter bag 8, as time goes by, the carbon black attached to the filter bag 8 will increase. The air pressure difference between the filter chamber 5 and the sweeping and blowing chamber 6 cannot be restored to a value that can be used for filtering by only using the sweeping and blowing component. Figure 3In the cleaning state shown, the air inlet 3 and the purge valve 12 are closed, the second electric telescopic rod 23 is in the longest length state, the first electric telescopic rod 19 is continuously extended and retracted, driving the cleaning brush 10 to move up and down, and cleaning the carbon black on the surface of the filter bag 8, until the air pressure difference between the filter chamber and the purge chamber 6 is restored to a value that can be filtered, and the first electric telescopic rod 19 is shortened to the shortest state and enters the filtering state again. During the cleaning process, since the cross-sections of the long bracket 22 and the supporting bracket 20 are both triangular, the cleaned carbon black rolls down to the two sides of the long bracket 22 and the supporting bracket 20 under the guidance of the inclined surface, and falls into the bottom of the shell 1 for collection, thereby avoiding the accumulation of carbon black on the long bracket 22 and the supporting bracket 20. When it is necessary to discharge the collected carbon black from the shell 1, close the purge valve 12, the air inlet 3 and the air outlet 4, open the discharge port 2, and the collected carbon black can be discharged from the shell 1.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A carbon black production and collection device, characterized in that: The invention comprises a shell, a filter assembly, a cleaning assembly and a purge assembly. The bottom cross-section of the shell is funnel-shaped, a discharge port is arranged at the bottom, an air inlet is arranged on the bottom side, and an air outlet is arranged on the top. The filter assembly is arranged in the middle section of the shell to divide the inside of the shell into a filter chamber at the bottom and a purge chamber at the top. The filter assembly comprises a partition and a filter bag. The partition is arranged inside the shell, and filter bag mounting holes are arranged in an array on the partition. The filter bag is arranged on the partition and passes through the filter bag mounting holes to hang down into the filter chamber. The cleaning assembly is arranged in the filter chamber, and comprises a lifting A lowering platform and a cleaning brush, wherein the cleaning brush is arranged on the lifting platform and is arranged corresponding to the gap between the filter bag and the shell or between two adjacent filter bags; the purge assembly is arranged in the purge chamber, including a compressed air bag, a purge valve, an air supply pipe, a purge pipe, a nozzle, a support plate and a pressure difference sensor, the compressed air bag and the purge pipe are connected through an air supply pipe, a purge valve is arranged on the air supply pipe, the purge pipe extends into the filter bag, the purge pipe is arranged with a nozzle, a support plate is arranged at the bottom of the purge pipe, one end of the pressure difference sensor extends into the filter chamber, and the other end extends into the purge chamber.

2. A carbon black production and collection device according to claim 1, characterized in that: The partition plate and the support plate are both mesh structures.

3. A carbon black production and collection device according to claim 1, characterized in that: The lifting platform includes a base bracket, a first electric telescopic rod and a supporting bracket. The base bracket is arranged at the bottom end of the shell. One end of the first electric telescopic rod is connected to the base bracket, and the other end is connected to the supporting bracket. The cleaning brush is arranged on the supporting bracket.

4. A carbon black production and collection device according to claim 3, characterized in that: The base support comprises a disc support and long strip supports distributed in a cross shape around the disc support, and the cross-sections of the long strip supports and the supporting support are triangular.

5. A carbon black production and collection device according to claim 1, characterized in that: The support plate and the cleaning brush have a rectangular brush body, and bristles are arranged on the sides of the brush body.

6. A carbon black production and collection device according to claim 1, characterized in that: A second electric telescopic rod is arranged between the bottom of the sweep and blow pipe and the support plate.

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