Fireproof device for waste gas bag filter

Abstract

The utility model discloses a fireproof device for a waste gas bag filter, which relates to the technical field of bag filters and comprises a shell, a seal cover arranged at the top end of the shell, a filter bag arranged in the shell, an air inlet pipe arranged on one side of the top of the filter bag and penetrating through the seal cover, and a steam pipeline arranged at the top end of the filter bag in a penetrating manner. A fireproof assembly is connected to the bottom end of the steam pipeline and located in the filter bag through a rotary connector, and a mounting frame is arranged at the bottom end of the filter bag. The fire-proof device is reasonable and reliable in structure and simple to operate, when carbon black is on fire in the filter bag under the action of the fire-proof component, steam is discharged into the filter bag through the steam holes to extinguish fire of the on-fire carbon black, so that the fire-proof efficiency of the fire-proof device of the waste gas bag filter is improved, and the fire-proof effect of the fire-proof device of the waste gas bag filter is improved under the action of the one-way acceleration component. And when the exhaust gas passes through the first channel and the second channel in different directions, the flow resistance is different, so that the exhaust gas can be quickly discharged from the exhaust hole.

Description

Technical Field

[0001] The utility model relates to the technical field of bag filters, in particular to a fire prevention device for waste gas bag filters. Background Art

[0002] Carbon black for rubber is a kind of carbon black material, which is obtained by processing and treating carbon black produced by cracking petroleum asphalt or natural gas. Carbon black is a fine granular carbon material with the characteristics of high specific surface area, good wear resistance, UV resistance and electrical conductivity. Carbon black is widely used in rubber products, including automobile tires, rubber tubes, seals, rubber pads, etc., among which it plays a key role in strengthening rubber, improving tire performance and extending service life in automobile tires. In the production process of carbon black, wet granulation technology is adopted. The main process of granulation technology is: powdered carbon black is mixed and stirred with water, adhesives, etc. in a granulator to form granules. After granulation, the wet carbon black particles enter the dryer for drying to remove the moisture in the carbon black. The waste gas containing powdered carbon and water vapor is transported to the waste gas filter bag through the waste gas fan to filter and collect carbon black, and the gas is discharged into the atmosphere.

[0003] During the drying process of carbon black, although the ignition point of carbon black is very high, if the drying temperature of carbon black is too high, the carbon black may catch fire after reaching the ignition point. If the carbon black entering the filter bag is not effectively cooled down, after the carbon black reaches the ignition point and catches fire, the flaming carbon black will be transported to the exhaust gas filter bag by the exhaust gas fan, causing the filter bag to catch fire, thereby causing fire and causing losses. The existing fire prevention device of the exhaust gas bag filter is not convenient for uniform cleaning of the inside of the filter bag when in use. The carbon black can only be shaken off by partial vibration of the filter bag, and the cleaning effect is not good. In addition, if a fire occurs inside the filter bag, the efficiency of extinguishing the fire by beating the inside of the filter bag is poor, and the filter bag is easily damaged.

[0004] For example, Chinese patent CN218924145U discloses a fire prevention device for a carbon black production waste gas bag filter, which includes a shell and a filter bag. The filter bag is connected to the shell by a plurality of elastic ropes. Electric vibrators are connected between the upper and lower ends of the filter bag and the inner wall of the shell. The left end of the filter bag is connected to an air inlet pipe that passes through the shell to the left. A vortex tube cooler is fixed to the upper end of the shell.

[0005] The fire prevention device of the carbon black production waste gas bag filter has the following disadvantages: although the burning carbon black can be beaten and extinguished by the rotating first serpentine heat exchange tube and the second serpentine heat exchange tube, thereby effectively preventing the filter bag from burning due to the carbon black ignition, the fire prevention device of the carbon black production waste gas bag filter can only shake off the carbon black by local vibration of the filter bag, and the cleaning effect is not good. In addition, if a fire occurs inside the filter bag, the efficiency of extinguishing the fire by beating the inside of the filter bag is poor, and the filter bag is easily damaged.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0007] In view of the problems in the related technology, the utility model proposes a fire prevention device for an exhaust gas bag filter to overcome the above technical problems existing in the existing related technology.

[0008] To this end, the specific technical solutions adopted by the utility model are as follows:

[0009] A fire prevention device for an exhaust gas bag filter comprises a shell, a sealing cover is arranged at the top of the shell, a filter bag is arranged inside the shell, an air inlet pipe penetrating the sealing cover is arranged on one side of the top of the filter bag, a steam pipe is penetrating the top of the filter bag, a fire prevention component is connected to the bottom end of the steam pipe and located inside the filter bag through a rotating joint, a mounting frame is arranged at the bottom end of the filter bag, a servo motor penetrating the shell and the mounting frame is connected to the bottom end of the fire prevention component, the top of the steam pipe penetrates the sealing cover, an exhaust pipe is arranged on one side of the top of the sealing cover, a one-way acceleration component is arranged inside the exhaust pipe, a waste discharge pipe penetrating the shell and the mounting frame is connected to one side of the bottom of the filter bag, and a control panel is arranged on the circumferential side wall of the shell.

[0010] Furthermore, in order to make the connecting shaft rotate through the servo motor under the action of the fire protection component, the connecting shaft drives the roller to rotate. Under the action of the rotation of the roller, the carbon black on the inner wall of the filter bag can be scraped and cleaned by driving the cleaning brush to avoid uneven cleaning. At the same time, when the carbon black is found to be on fire inside the filter bag, the steam is discharged into the roller through the steam pipe, and the burning carbon black is discharged to the inside of the filter bag through the steam hole to extinguish the fire, thereby improving the fire extinguishing efficiency of the fire protection device of the exhaust gas bag filter. The fire protection component includes a connecting shaft arranged at the output end of the servo motor, a roller is arranged at the top end of the connecting shaft, and the roller is a hollow structure, a plurality of cleaning brushes are arranged on the circumferential side wall of the roller, and a plurality of long plates are arranged on the circumferential outer wall of the roller and between the cleaning brushes, and a plurality of steam holes are opened on the surface of the long plates, and the top end of the roller is connected to the rotating joint.

[0011] Furthermore, in order to allow the exhausted exhaust gas to enter the air inlet through the exhaust pipe and then enter the exhaust channel under the action of the one-way acceleration component, and then flow toward the exhaust hole under the action of the first channel and the second channel, the one-way flow of the exhaust gas can be achieved. Since the fluid has inertia, the flow resistance is different when passing through the first channel and the second channel in different directions, so that the exhaust gas can be quickly transmitted out of the exhaust hole, the one-way acceleration component includes a cylinder arranged at the inner top of the exhaust pipe, the exhaust channel is arranged inside the cylinder, the air inlet is arranged at one end of the exhaust channel, the exhaust hole is arranged at the other end of the exhaust channel, and the exhaust channel includes The invention comprises a plurality of channel groups, and the adjacent channel groups are centrally symmetrical structures, the channel group consists of a first channel and a second channel, one end of the first channel is connected to one end of the second channel, one end of the first channel is connected to the air inlet, the other end of the first channel is connected to the other end of the second channel, the first channel comprises a contraction section and an expansion section, one end of the contraction section is connected to one end of the air inlet, the other end of the contraction section is connected to one end of the expansion section, the second channel comprises an arc section and an inclined section, one end of the arc section is connected to one end of the contraction section, the other end of the arc section is connected to one end of the inclined section, and the other end of the inclined section is connected to the other end of the expansion section.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model has a reasonable and reliable structure and is easy to operate. Under the action of the fireproof component, the connecting shaft drives the roller to rotate. Under the action of the rotation of the roller, the carbon black on the inner wall of the filter bag can be scraped and cleaned by driving the cleaning brush to avoid uneven cleaning. At the same time, when it is found that the carbon black is on fire inside the filter bag, steam is discharged into the roller through the steam pipe, and then discharged to the inside of the filter bag through the steam hole to extinguish the burning carbon black, thereby improving the fire extinguishing efficiency of the fireproof device of the exhaust gas bag filter. Moreover, under the action of the one-way acceleration component, the exhaust gas flows toward the exhaust hole under the action of the first channel and the second channel, so that the one-way flow of the exhaust gas can be realized. Since the fluid has inertia, the flow resistance is different when passing through the first channel and the second channel in different directions, and the exhaust gas can be quickly transmitted out of the exhaust hole.

[0014] 2. By setting up a fireproof component, under the action of the fireproof component, the servo motor drives the connecting shaft to rotate, and the connecting shaft drives the roller to rotate. Under the action of the rotation of the roller, the carbon black on the inner wall of the filter bag can be scraped and cleaned by driving the cleaning brush to avoid uneven cleaning. At the same time, when the carbon black is found to be on fire inside the filter bag, the steam is discharged into the roller through the steam pipe, and then discharged into the filter bag through the steam hole to extinguish the burning carbon black, thereby improving the fire extinguishing efficiency of the fireproof device of the exhaust gas bag filter.

[0015] 3. By setting a one-way acceleration component, the exhaust gas enters the air inlet through the exhaust pipe and then enters the exhaust channel under the action of the one-way acceleration component. Then, it can flow toward the exhaust hole under the action of the first channel and the second channel, thereby realizing one-way flow of the exhaust gas. Since the fluid has inertia, the flow resistance is different when passing through the first channel and the second channel in different directions, so that the exhaust gas can be quickly transmitted out of the exhaust hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional diagram of a fire prevention device for an exhaust bag filter according to an embodiment of the utility model;

[0018] Figure 2 is a cross-sectional view of a fire protection device for an exhaust bag filter according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a fire prevention component in a fire prevention device for an exhaust gas bag filter according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a one-way acceleration component in a fire prevention device for an exhaust gas bag filter according to an embodiment of the utility model;

[0021] Figure 5 It is a partial cross-sectional view of a one-way acceleration component in a fire protection device for an exhaust gas bag filter according to an embodiment of the utility model;

[0022] Figure 6 yes Figure 5 Front view of .

[0023] In the figure:

[0024] 1. Casing; 2. Cover; 3. Filter bag; 4. Inlet pipe; 5. Steam pipe; 6. Rotary joint; 7. Fireproof component; 701. Connecting shaft; 702. Roller; 703. Cleaning brush; 704. Long board; 705. Steam hole; 8. Mounting frame; 9. Servo motor; 10. Exhaust pipe; 11. One-way acceleration component; 1101. Cylinder; 1102. Exhaust channel; 11021. First channel; 110211. Contraction section; 110212. Expansion section; 11022. Second channel; 110221. Arc section; 110222. Inclined section; 1103. Inlet hole; 1104. Exhaust hole; 12. Waste pipe; 13. Control panel. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a fire protection device for an exhaust gas bag filter is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 6 As shown, the fire prevention device for the waste gas bag filter according to the embodiment of the utility model comprises a shell 1, a sealing cover 2 is arranged at the top of the shell 1, a filter bag 3 is arranged inside the shell 1, an air inlet pipe 4 penetrating the sealing cover 2 is arranged on one side of the top of the filter bag 3, a steam pipe 5 is penetrating the top of the filter bag 3, in specific application, the steam pipe 5 is connected to an external steam device, and the steam device provides fire extinguishing steam, and the bottom end of the steam pipe 5 and the inside of the filter bag 3 are connected to the fire prevention through a rotary joint 6 Component 7, a mounting frame 8 is provided at the bottom end of the filter bag 3, a servo motor 9 penetrating the shell 1 and the mounting frame 8 is connected to the bottom end of the fireproof component 7, the top of the steam pipe 5 penetrates the cover 2, an exhaust pipe 10 is provided on one side of the top of the cover 2, a one-way acceleration component 11 is provided inside the exhaust pipe 10, a waste pipe 12 penetrating the shell 1 and the mounting frame 8 is connected to one side of the bottom of the filter bag 3, and in specific applications, an electromagnetic valve is provided on the outer wall of the waste pipe 12, and a control panel 13 is provided on the circumferential side wall of the shell 1.

[0028] In addition, the working principles and structures of the solenoid valve, the servo motor 9 and the steam equipment are all prior art and will not be elaborated in detail here.

[0029] In one embodiment, for the fireproof component 7, the fireproof component 7 includes a connecting shaft 701 arranged at the output end of the servo motor 9, a roller 702 is arranged at the top of the connecting shaft 701, and the roller 702 is a hollow structure, and a plurality of cleaning brushes 703 are arranged on the circumferential side wall of the roller 702. In specific applications, the cleaning brushes 703 are made of a flexible fireproof material, and a plurality of long plates 704 are arranged on the circumferential outer wall of the roller 702 and between the cleaning brushes 703. The surfaces of the long plates 704 are provided with a plurality of steam holes 705. The top of the roller 702 is connected to the rotary joint 6. Under the action of the fire protection component 7, the servo motor 9 drives the connecting shaft 701 to rotate, and the connecting shaft 701 drives the roller 702 to rotate. Under the action of the rotation of the roller 702, the carbon black on the inner wall of the filter bag 3 can be scraped and cleaned by driving the cleaning brush 703 to avoid uneven cleaning. At the same time, when it is found that the carbon black is on fire inside the filter bag 3, steam is discharged into the roller 702 through the steam pipe 5, and then discharged to the inside of the filter bag 3 through the steam hole 705 to extinguish the burning carbon black, thereby improving the fire extinguishing efficiency of the fire protection device of the exhaust gas bag filter.

[0030] The specific working principle of the fire protection component 7 is as follows: the servo motor 9 is started to rotate through the control panel 13, and the servo motor 9 drives the connecting shaft 701 to rotate, and the connecting shaft 701 drives the roller 702 to rotate. Under the action of the rotation of the roller 702, the carbon black on the inner wall of the filter bag 3 can be scraped and cleaned by driving the cleaning brush 703 to avoid uneven cleaning. At the same time, when the carbon black is found to be on fire inside the filter bag 3, the steam is discharged into the roller 702 through the steam pipe 5, and then discharged to the inside of the filter bag 3 through the steam hole 705 to extinguish the burning carbon black, thereby improving the fire extinguishing efficiency of the fire protection device of the exhaust gas bag filter.

[0031] In one embodiment, for the above-mentioned unidirectional acceleration component 11, the unidirectional acceleration component 11 includes a cylinder 1101 arranged on the inner top of the exhaust pipe 10, an exhaust channel 1102 is opened inside the cylinder 1101, one end of the exhaust channel 1102 is provided with an air inlet 1103, and the other end of the exhaust channel 1102 is provided with an exhaust hole 1104, the exhaust channel 1102 includes a plurality of channel groups, and the adjacent channel groups are centrally symmetrical structures, the channel group is composed of a first channel 11021 and a second channel 11022, one end of the first channel 11021 is connected to one end of the second channel 11022, and one end of the first channel 11021 is connected to the air inlet 1103, and the other end of the first channel 11021 is connected to the other end of the second channel 11022, the first channel 11021 includes a contraction section 110211 and an expansion section 110212, and one end of the contraction section 110211 is connected to one end of the air inlet 1103, the contraction section 110211 is connected to one end of the air inlet 1103, and the contraction section 110211 is connected to one end of the air inlet 1104. The other end of the contraction section 110211 is connected to one end of the expansion section 110212, the second channel 11022 includes an arc section 110221 and an inclined section 110222, one end of the arc section 110221 is connected to one end of the contraction section 110211, the other end of the arc section 110221 is connected to one end of the inclined section 110222, and the other end of the inclined section 110222 is connected to the other end of the expansion section 110212, so that in the unidirectional acceleration component 11 Under the action, the exhausted exhaust gas enters the air inlet 1103 through the exhaust pipe 10, and then enters the exhaust channel 1102, and then flows toward the exhaust hole 1104 under the action of the first channel 11021 and the second channel 11022, thereby realizing the one-way flow of the exhaust gas. Due to the inertia of the fluid, the flow resistance is different when passing through the first channel 11021 and the second channel 11022 in different directions, and the exhaust gas can be quickly transmitted from the exhaust hole 1104.

[0032] The specific working principle of the unidirectional acceleration component 11 is as follows: the exhausted exhaust gas enters the air inlet 1103 through the exhaust pipe 10, and then enters the exhaust channel 1102, and then flows toward the exhaust hole 1104 under the action of the first channel 11021 and the second channel 11022, thereby realizing the unidirectional flow of the exhaust gas. Since the fluid has inertia, the flow resistance is different when passing through the first channel 11021 and the second channel 11022 in different directions, and the exhaust gas can be quickly transmitted out of the exhaust hole 1104.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] In actual application, first, when the carbon black enters the filter bag 3 through the air intake pipe 4, the filter bag 3 will filter the carbon black, and the filtered exhaust gas will be discharged faster through the one-way acceleration component 11 in the exhaust pipe 10 to avoid backflow. When the carbon black in the filter bag 3 is found to be on fire, the servo motor 9 is started through the control panel 13 to drive the fire prevention component 7 to extinguish the carbon black in the filter bag 3. At the same time, the fire prevention component 7 can also scrape the carbon black on the inner wall of the filter bag 3 to avoid uneven cleaning, so that the carbon black in the filter bag 3 can be discharged through the exhaust pipe 12.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire protection device for an exhaust bag filter, comprising a housing (1), characterized in that: A sealing cover (2) is arranged at the top of the shell (1), a filter bag (3) is arranged inside the shell (1), an air inlet pipe (4) penetrating the sealing cover (2) is arranged on one side of the top of the filter bag (3), a steam pipe (5) is penetrating the top of the filter bag (3), a fireproof component (7) is connected to the bottom of the steam pipe (5) and located inside the filter bag (3) via a rotating joint (6), and a mounting frame (8) is arranged at the bottom of the filter bag (3); The bottom end of the fireproof component (7) is connected to a servo motor (9) that passes through the shell (1) and the mounting frame (8); the top of the steam pipe (5) passes through the cover (2); an exhaust pipe (10) is provided on one side of the top of the cover (2); a one-way acceleration component (11) is provided inside the exhaust pipe (10); the bottom side of the filter bag (3) is connected to a waste pipe (12) that passes through the shell (1) and the mounting frame (8); and a control panel (13) is provided on the circumferential side wall of the shell (1).

2. A fire prevention device for an exhaust bag filter according to claim 1, characterized in that: The fireproof component (7) comprises a connecting shaft (701) arranged at the output end of the servo motor (9), a rotating roller (702) is arranged at the top end of the connecting shaft (701), and the rotating roller (702) is a hollow structure, and a plurality of cleaning brushes (703) are arranged on the circumferential side wall of the rotating roller (702).

3. A fire prevention device for an exhaust bag filter according to claim 2, characterized in that: A plurality of long plates (704) are provided on the circumferential outer wall of the rotating roller (702) and between the cleaning brushes (703), and a plurality of steam holes (705) are provided on the surface of the long plates (704). The top end of the rotating roller (702) is connected to the rotating joint (6).

4. A fire prevention device for an exhaust bag filter according to claim 1, characterized in that: The unidirectional acceleration component (11) comprises a cylinder (1101) arranged at the inner top of the exhaust pipe (10), an exhaust channel (1102) is provided inside the cylinder (1101), an air inlet hole (1103) is provided at one end of the exhaust channel (1102), and an exhaust hole (1104) is provided at the other end of the exhaust channel (1102).

5. A fire prevention device for an exhaust bag filter according to claim 4, characterized in that: The exhaust channel (1102) comprises a plurality of channel groups, and adjacent channel groups are centrally symmetrical structures, the channel group consists of a first channel (11021) and a second channel (11022), one end of the first channel (11021) is connected to one end of the second channel (11022), and one end of the first channel (11021) is connected to the air inlet (1103), and the other end of the first channel (11021) is connected to the other end of the second channel (11022).

6. A fire prevention device for an exhaust bag filter according to claim 5, characterized in that: The first channel (11021) comprises a contraction section (110211) and an expansion section (110212), and one end of the contraction section (110211) is connected to one end of the air inlet (1103), and the other end of the contraction section (110211) is connected to one end of the expansion section (110212).

7. A fire prevention device for an exhaust bag filter according to claim 6, characterized in that: The second channel (11022) comprises an arc segment (110221) and an inclined segment (110222), one end of the arc segment (110221) is connected to one end of the contraction segment (110211), the other end of the arc segment (110221) is connected to one end of the inclined segment (110222), and the other end of the inclined segment (110222) is connected to the other end of the expansion segment (110212).

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