Main smoke filtering bin for carbon black production

Abstract

The application belongs to the technical field of carbon black treatment, and particularly discloses a main smoke filtering bin for carbon black production. In the main smoke filtering bin for carbon black production, a folded pipeline extending vertically and communicating with the air inlet pipeline is arranged in the bin body, a plurality of right-angle bends are distributed from top to bottom in the folded pipeline, a blower communicating with the interior of the bin body is arranged in the lower region outside the bin body, the blower is internally provided with an electric heating wire, and the electric heating wire is arranged at the air outlet end of the blower. Thus, the hot air generated by the blower can maintain the temperature of the high-temperature carbon black flue gas above the dew point, thereby avoiding the condensation of water vapor and carbon black powder on the surface of the filter bag to form a hardening phenomenon from the source. The above structure design can prevent the generation of muddy attachments on the surface of the filter bag from the two aspects of heating and reducing the concentration of high-temperature flue gas, so as to ensure the normal operation of the main smoke filtering bin.

Description

Technical Field

[0001] This invention belongs to the field of carbon black processing technology, specifically relating to a main filter chamber for carbon black production. Background Technology

[0002] Carbon black has a wide range of applications in our lives and is ubiquitous. Carbon black is produced by preheating raw oil to form fine oil droplets, which are then sprayed into a reactor at a high temperature of over 1,000 degrees Celsius to decompose into carbon black particles. The particles then collide with each other to form chain-like structures. Finally, the carbon black and exhaust gas are fed into a fume filter chamber to obtain carbon black powder.

[0003] In related technologies, the main filter chamber collects carbon black powder through its internal filter bags. The working principle of the main filter chamber collecting carbon black powder is as follows: as the carbon black powder passes through the filter bag with the airflow, it is intercepted by the fibrous material inside the filter bag. When the filter bag resistance reaches a set value, a pulse valve generates a high-speed pulse airflow that impacts the filter bag, causing the attached carbon black powder to detach, thus achieving the collection of carbon black powder.

[0004] During actual operation, the temperature of the carbon black flue gas drops below the dew point as it is transported into and flows within the filter chamber. This causes water vapor in the carbon black flue gas to condense on the surface of the filter bags. The condensed water vapor mixes with the carbon black powder to form a mud-like deposit, causing the filter bags to clump together. Clumping of the filter bags not only affects their efficiency in intercepting carbon black powder but also prevents the pulse airflow from achieving its pulse dust removal function, thus impacting the collection of carbon black powder. Summary of the Invention

[0005] To address some or all of the technical problems existing in the prior art, the present invention provides a main filter chamber for carbon black production, comprising:

[0006] The silo body has a floor frame fixedly installed at the bottom, and a material discharge port is provided in the central area of ​​the bottom. Multiple horizontally distributed blow pipes are also fixedly installed at the top of the silo body, and filter bags are suspended below the blow pipes.

[0007] An air intake pipe is provided above the side wall of the chamber, with its first end penetrating the side wall of the chamber and communicating with its interior, and its second end used to connect to an external carbon black flue gas conveying device.

[0008] A folded pipe is disposed inside the chamber and located beside the filter bag, with its top connected to the air inlet pipe; the folded pipe extends vertically, and its two opposite side walls are bent to form multiple right-angle bends, which are evenly distributed from top to bottom; an L-shaped pipe is integrally formed at the bottom of the folded pipe, and the end of the L-shaped pipe is provided with a downwardly inclined material sliding part;

[0009] A blower is installed at the bottom of the side wall of the chamber, penetrating the bottom of the chamber and sealed to the L-shaped pipe via a flange, and its outlet end is equipped with an electric heating wire; wherein,

[0010] The blower is used to send the hot air heated by the electric heating wire into the L-shaped pipe to heat the carbon black flue gas and push it to flow towards the filter bag.

[0011] In some possible implementations, an arc-shaped connecting pipe is provided at the connection between the air intake pipe and the folded pipe, the arc-shaped connecting pipe being used to reduce the flow resistance of the carbon black flue gas.

[0012] Among the possible implementation methods is the use of multiple stainless steel dust suppression panels;

[0013] Multiple dust suppression plates are fixedly and inclinedly disposed at the top of the L-shaped pipe and the material sliding section, and each dust suppression plate is parallel to the material sliding section.

[0014] In some possible implementations, a partition is fixedly installed inside the chamber, the partition is located below the blow pipe, and it has blow ports along the thickness direction that correspond one-to-one with the nozzles of the multiple blow pipes, and the top openings of the multiple filter bags are respectively coaxially aligned with the multiple blow ports.

[0015] In some possible implementations, the bottom of the partition is fixedly provided with a plurality of bag cages coaxially aligned with the spray outlet, the bag cages being composed of a support ring plate at the top and a plurality of support ribs at the bottom thereof;

[0016] The filter bag is fitted inside the bag cage, and the surface of the filter bag is recessed inward to form a groove for accommodating the support rib. The groove extends in the axial direction and is consistent with the length of the support rib.

[0017] In some possible implementations, each of the blowpipes has a blowhead coaxially fixed at its nozzle, and the bottom of the blowhead is fixedly connected to the top of the support ring plate by multiple support rods, with the multiple support rods distributed circumferentially with the blowhead.

[0018] In some possible implementations, the bottom of multiple support rods are fixedly connected to the support ring plate by bolts.

[0019] In some possible implementations, a blower sleeve is fixedly installed at the top of multiple support rods, and the blower sleeve is fitted inside the blower head.

[0020] Among the possible implementation methods is a temperature control system;

[0021] The temperature control system includes a temperature sensor fixed inside the L-shaped pipe and a controller electrically connected to the temperature sensor. The controller is electrically connected to the electric heating wire and is used to control the hot air temperature within a preset temperature range to prevent the temperature of the carbon black flue gas from falling below the dew point.

[0022] The main filter chamber for carbon black production provided in this application embodiment has at least the following beneficial effects:

[0023] In the main filter chamber for carbon black production provided in this embodiment, a vertically extending, folded pipe connected to the air inlet pipe is installed inside the chamber. This folded pipe has multiple right-angle bends distributed from top to bottom. When high-temperature carbon black flue gas passes through the folded pipe, some carbon black powder directly collides with the right-angle bends and falls into the transverse section of the L-shaped pipe. This powder is then quickly blown out by the hot air generated by the blower, thus achieving initial separation of coarse particles from the high-temperature carbon black flue gas. In this way, the folded pipe design can initially separate carbon black powder from the high-temperature carbon black flue gas, reducing the concentration of high-temperature carbon black flue gas in contact with the filter bags and decreasing the rate of dust accumulation on the filter bag surface, thereby reducing the frequency of equipment downtime for maintenance.

[0024] A blower connected to the interior of the filter bag is installed in the lower area outside the main filter compartment. The blower contains an electric heating wire located at the blower's outlet. This allows the hot air generated by the blower to maintain the temperature of the high-temperature carbon black flue gas above its dew point, thus preventing moisture and carbon black powder from condensing on the filter bag surface and forming caking. This structural design eliminates the formation of mud-like deposits on the filter bag surface by both heating and reducing the concentration of high-temperature flue gas, ensuring the normal operation of the main filter compartment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the main filter chamber for carbon black production provided in an embodiment of this application;

[0027] Figure 2 for Figure 1 Internal sectional view of the central compartment;

[0028] Figure 3 for Figure 2 The front view;

[0029] Figure 4 for Figure 2 A partial enlarged view of the electric heating wire built into the blower.

[0030] Figure 5 for Figure 1 Front view of a zigzag pipe;

[0031] Figure 6 for Figure 1 Assembly diagram of the internal partitions and blow pipes of the central compartment;

[0032] Figure 7 for Figure 1 Assembly diagram of the middle partition and the bag cage;

[0033] Figure 8 This is a partial structural diagram of the bag cage.

[0034] Figure 9 for Figure 8 Schematic diagram of the structure of the middle bag cage and filter bag;

[0035] Figure 10 for Figure 9 A diagram from another perspective;

[0036] Figure 11 This is a schematic diagram of the structure of the blower head and bag cage provided in another embodiment of this application;

[0037] Figure 12 for Figure 11 A schematic diagram of another embodiment.

[0038] Figure label:

[0039] 100. Bin body; 110. Floor-mounted frame; 120. Material discharge port; 130. Partition; 140. Air jet nozzle;

[0040] 200. Jet pipe; 210. Jet head; 220. Support rod; 230. Jet sleeve;

[0041] 300, filter bag; 310, slot;

[0042] 400. Intake pipe;

[0043] 500. Folded pipe; 510. Right-angle elbow; 520. L-shaped pipe; 530. Slip section;

[0044] 600. Blower; 610. Electric heating wire;

[0045] 700. Curved connecting pipes;

[0046] 800, dust suppression board;

[0047] 900, Bag cage; 910, Support ring plate; 920, Support rib. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0049] like Figures 1-5 As shown in the embodiment of this application, the main filter chamber for carbon black production includes a chamber body 100, an air inlet pipe 400, a folded pipe 500, and a blower 600. The chamber body 100 is the main structure of the main filter chamber, which is welded and spliced ​​from multiple carbon steel or stainless steel plates to form a sealed space to accommodate the corresponding filter components. Furthermore, the surface of the chamber body 100 is treated with rust prevention, and the corresponding weld joints are sealed to prevent air leakage from affecting the filtration efficiency. A conical ash hopper is provided at the bottom of the chamber body 100, and a discharge port 120 is provided in the central area of ​​the bottom of the ash hopper. Dust falling during the cleaning process can be discharged outward through the discharge port 120. In addition, a floor-mounted frame 110 is fixedly installed at the bottom of the chamber body 100.

[0050] An air tank, a core component of the pulse cleaning system, is fixedly installed on the outer wall of the chamber 100. The air tank is connected to multiple pulse valves and multiple blowpipes 200, which are horizontally positioned in the upper part of the chamber 100. Multiple filter bags 300, arranged in a matrix pattern, are suspended inside the chamber 100, all located below the blowpipes 200. Furthermore, the top opening of each filter bag 300 is coaxially aligned with the air outlet of the blowpipe 200, facilitating effective cleaning of the filter bags 300 via pulsed airflow during the cleaning phase.

[0051] Preferably, such as Figure 6 and Figure 7 As shown, a partition 130 is welded and fixed inside the chamber 100, and the partition 130 is located below the blow pipe 200. The partition 130 has blow ports 140 along its thickness direction that correspond one-to-one with the nozzles of the multiple blow pipes 200, and the top openings of the multiple filter bags 300 are coaxially aligned with the multiple blow ports 140 respectively.

[0052] In this embodiment, the air inlet pipe 400 is located in the upper region of the chamber 100. The air inlet end of the air inlet pipe 400 penetrates the side wall of the chamber 100 and extends into its interior. The air inlet pipe 400 is used to connect to external equipment to introduce high-temperature carbon black flue gas into the chamber 100. Conversely, an air outlet pipe is also connected to the other side of the chamber 100. The air outlet pipe is used to discharge pure air filtered by the filter bag 300. Preferably, the air outlet pipe can also be connected to an induced draft fan to achieve the function of quickly discharging pure air.

[0053] The folded pipe 500 is a pipe with multiple right-angle bends 510. Each right-angle bend 510 is formed by cold bending two opposing side walls using a pipe bending machine, and its inner wall is coated with a tungsten carbide coating. The air inlet end of the folded pipe 500 is connected to the air inlet pipe 400, which is located inside the chamber 100 and extends vertically. The folded pipe 500 is located in the side area of ​​the filter bag 300 array, and its main function is to guide the high-temperature carbon black flue gas downwards and ultimately discharge it along the bottom area of ​​the filter bags 300. This allows the high-temperature carbon black flue gas to flow upwards along the filter bags 300, enabling the filter bags 300 to fully contact the high-temperature carbon black flue gas and thus completely adsorb the carbon black powder in the high-temperature carbon black flue gas.

[0054] like Figures 2-5 As shown, multiple right-angle bends 510 of the folded pipe 500 are evenly distributed from top to bottom. An L-shaped pipe 520 is also provided at the bottom of the folded pipe 500, which changes the flow direction of the high-temperature carbon black flue gas within the folded pipe 500 from vertical to horizontal. During the flow of the high-temperature carbon black flue gas, the carbon black powder carried in the flue gas comes into direct contact with the right-angle bends 510 and immediately falls into the horizontal section of the L-shaped pipe 520, thereby achieving preliminary separation of the carbon black powder. Furthermore, a downwardly inclined sliding section 530 is integrally formed at the end of the L-shaped pipe 520.

[0055] In this embodiment, the blower 600 is located in the area below the side wall of the chamber 100, and its outlet is connected to the interior of the chamber 100. An electric heating wire 610 is also installed at the outlet of the blower 600 to heat the airflow produced by the blower 600. Specifically, the outlet of the blower 600 is parallel to and aligned with the transverse section of the L-shaped pipe 520. Therefore, the airflow produced by the blower 600 can directly act on the transverse section of the L-shaped pipe 520, further increasing the flow rate of the high-temperature carbon black flue gas. Simultaneously, it can also blow away carbon black powder that has fallen onto the surface of the bottom plate of the L-shaped pipe 520. The hot air generated by the blower 600 can prevent the flue gas temperature from falling below the dew point, thereby preventing water vapor in the high-temperature carbon black flue gas from condensing on the surface of the filter bag 300 and mixing with the carbon black powder to form a mud-like substance on the surface of the filter bag 300, thus clogging the filter bag 300.

[0056] Preferably, a temperature control system may also be installed inside the L-shaped pipe 520. The temperature control system includes a temperature sensor fixed inside the L-shaped pipe 520 and a controller electrically connected to the temperature sensor. The controller is electrically connected to the electric heating wire 610 and is used to control the hot air temperature within a preset temperature range to prevent the carbon black flue gas temperature from falling below the dew point.

[0057] The following is combined with Figures 1-6 The working principle and working process of the main filter chamber for carbon black production provided in the embodiments of this application are described.

[0058] Start the blower 600 in advance and set the air volume, and energize the electric heating wire 610 to preheat it. Check the status of each component: the blowpipe 200 has no leaks, the filter bag 300 is firmly installed, and the chamber 100 is properly sealed. Once everything is confirmed to be in order, prepare to introduce high-temperature carbon black flue gas.

[0059] The external carbon black flue gas conveying equipment sends high-temperature carbon black flue gas into the folded pipe 500 through the inlet pipe 400. The high-temperature carbon black flue gas flows vertically along the folded pipe 500. During the flow, when the high-temperature carbon black flue gas passes through several right-angle bends 510, some larger carbon black powder particles will collide with it and fall onto the bottom plate of the transverse section of the L-shaped pipe 520.

[0060] Meanwhile, the hot air generated by the blower 600 enters the L-shaped duct 520. This hot air heats the high-temperature carbon black flue gas to ensure its temperature remains above the dew point. Simultaneously, it propels the high-temperature carbon black flue gas and larger carbon black particles towards the sliding section 530. Ultimately, the larger carbon black particles fall into the conical ash hopper, while the high-temperature carbon black flue gas flows upward from the bottom of the filter bags 300, contacting the array of filter bags 300.

[0061] When the high-temperature carbon black flue gas passes through the filter bag 300, the carbon black powder carried in the flue gas is intercepted by the fiber structure of the filter bag 300. The purified flue gas is then discharged outward through the exhaust pipe at the top of the hopper 100. The carbon black powder intercepted by the fiber structure adheres to the surface of the filter bag 300. When the resistance of the filter bag 300 reaches a set value, the pulse valve will automatically activate, and the blowpipe 200 will inject a pulsed airflow into the filter bag 300 through the blown head 210. In this way, the carbon black powder can fall into the ash hopper and finally be collected directionally at the discharge port 120.

[0062] When the high-temperature carbon black flue gas is stopped, the blower 600 and the electric heating wire 610 are kept running for a period of time. This serves two purposes: firstly, hot air can be used to remove residual carbon black powder from the pipes, preventing powder buildup and blockage. Secondly, continuously supplying hot air into the chamber 100 avoids shutting down the equipment below the dew point. This ensures that the temperature inside the chamber 100 is maintained above the dew point and that residual moisture is expelled, thus preventing the filter bags 300 from caking.

[0063] In the main filter chamber for carbon black production provided in this embodiment, a zigzag pipe 500 extending vertically and connected to the air inlet pipe 400 is provided inside the chamber body 100. The zigzag pipe 500 has multiple right-angle bends 510 distributed from top to bottom. When high-temperature carbon black flue gas passes through the zigzag pipe 500, some carbon black powder can directly collide with the right-angle bends 510 and fall into the transverse section of the L-shaped pipe 520, where it is quickly blown out by the hot air generated by the blower 600, thus achieving preliminary separation of coarse particles from the high-temperature carbon black flue gas. In this way, the design of the zigzag pipe 500 can initially separate carbon black powder from the high-temperature carbon black flue gas, reducing the concentration of high-temperature carbon black flue gas in contact with the filter bag 300 and reducing the rate of dust accumulation on the surface of the filter bag 300, thereby reducing the frequency of equipment downtime for maintenance.

[0064] A blower 600, connected to the interior of the main filter chamber 100, is installed in the lower area outside the chamber. The blower 600 contains an electric heating wire 610 located at its outlet. This allows the hot air generated by the blower 600 to maintain the temperature of the high-temperature carbon black flue gas above its dew point, thus preventing moisture and carbon black powder from condensing on the surface of the filter bag 300 and forming a cake. This structural design effectively eliminates the formation of mud-like deposits on the surface of the filter bag 300 by both heating and reducing the concentration of high-temperature carbon black flue gas, ensuring the normal operation of the main filter chamber.

[0065] In some embodiments, an arc-shaped connecting pipe 700 is provided at the connection between the air intake pipe 400 and the bend pipe 500. The arc-shaped connecting pipe 700 is used to reduce the flow resistance of the carbon black flue gas. Furthermore, the arc-shaped connecting pipe 700 can provide a smooth transition when the high-temperature carbon black flue gas changes direction, thereby eliminating dead angles at the pipe connection and avoiding local stagnation of high-temperature flue gas at right-angle connections.

[0066] In some embodiments, the system also includes multiple stainless steel dust suppression panels 800. For example... Figure 5 As shown, multiple dust suppression plates 800 are fixedly and inclinedly installed at the top of the L-shaped pipe 520 and the material sliding section 530, with each dust suppression plate 800 parallel to the material sliding section 530. The dust suppression plates 800 can block the reverse flow of carbon black powder dust, ensuring that the high-temperature carbon black flue gas can flow evenly to the bottom area of ​​the filter bag 300.

[0067] In some embodiments, such as Figure 8 , Figure 9 and Figure 10 As shown, a plurality of bag cages 900 coaxially aligned with the spray outlet are fixedly installed at the bottom of the partition plate 130. Each bag cage 900 consists of a support ring plate 910 at the top and a plurality of support ribs 920 at its bottom. Specifically, the bag cage 900 is bolted to the bottom surface of the partition plate 130 by bolts to the support ring plate 910 at its top. Filter bags 300 are fitted inside the bag cages 900, and the surface of the filter bag 300 is recessed inward to form a groove 310 for accommodating the support ribs 920. The groove 310 extends axially and has the same length as the support ribs 920.

[0068] By providing grooves 310 on the surface of the filter bag 300 that are compatible with the support ribs 920, the filter bag 300 can be securely fastened inside the bag cage 900. This prevents circumferential displacement of the filter bag 300 due to violent collisions or contractions when the pulsed airflow impacts it during the dust removal process. Furthermore, fixing the filter bag 300 relative to the bag cage 900 ensures that the opening of the filter bag 300 is always coaxial with the jet nozzle 140, thereby further guaranteeing the accuracy of dust removal.

[0069] In some embodiments, such as Figure 11 As shown, each blowpipe 200 has a blowhead 210 coaxially fixed at its nozzle. The bottom of the blowhead 210 is fixedly connected to the top of the support ring plate 910 via multiple support rods 220, which are circumferentially distributed with the blowhead 210. Preferably, the bottom of each support rod 220 is fixedly connected to the support ring plate 910 via bolts.

[0070] By rigidly connecting the blow nozzle 210 to the bag cage 900 via the bottom support rod 220, the blow nozzle 210 and the blow pipe 200 can be coaxially fixed. This prevents the blow nozzle 210 from axial or radial displacement due to vibration or pulsed airflow impact, ensuring that the pulsed airflow can accurately enter and impact the filter bag 300, thus guaranteeing the dust removal effect of the pulsed airflow. At the same time, the support rod 220 connects the blow nozzle 210 and the bag cage 900 into an integral structure, preventing the bag cage 900 from shaking during the dust removal stage, thereby reducing the friction frequency between the bag cage 900 and the filter bag 300.

[0071] Based on the above embodiments, such as Figure 12 As shown, multiple support rods 220 have a blower sleeve 230 fixedly installed at their tops, and the blower sleeve 230 is fitted inside the blower head 210. This structural design facilitates timely replacement of the blower head 210 when it is damaged.

[0072] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0073] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable 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 communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used 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. Meanwhile, 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. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A main fume filter house for carbon black production, characterized by, include: The silo body has a floor frame fixedly installed at the bottom, and a material discharge port is provided in the central area of ​​the bottom. Multiple horizontally distributed blow pipes are also fixedly installed at the top of the silo body, and filter bags are suspended below the blow pipes. An air intake pipe is provided above the side wall of the chamber, with its first end penetrating the side wall of the chamber and communicating with its interior, and its second end used to connect to an external carbon black flue gas conveying device. A folded pipe is disposed inside the chamber and located beside the filter bag, with its top connected to the air inlet pipe; the folded pipe extends vertically, and its two opposite side walls are bent to form multiple right-angle bends, which are evenly distributed from top to bottom; an L-shaped pipe is integrally formed at the bottom of the folded pipe, and the end of the L-shaped pipe is provided with a downwardly inclined material sliding part; A blower is installed at the bottom of the side wall of the chamber, penetrating the bottom of the chamber and sealed to the L-shaped pipe via a flange, and its outlet end is equipped with an electric heating wire; wherein, The blower is used to send the hot air heated by the electric heating wire into the L-shaped pipe to heat the carbon black flue gas and push the carbon black flue gas toward the filter bag.

2. The main smoke filtering chamber for carbon black production according to claim 1, characterized in that: An arc-shaped connecting pipe is provided at the connection between the air intake pipe and the folded pipe. The arc-shaped connecting pipe is used to reduce the flow resistance of the carbon black flue gas.

3. The main smoke filtering chamber for carbon black production according to claim 1, characterized in that: It also includes multiple stainless steel dust suppression panels; Multiple dust suppression plates are fixedly and inclinedly disposed at the top of the L-shaped pipe and the material sliding section, and each dust suppression plate is parallel to the material sliding section.

4. The main smoke filtering chamber for carbon black production according to claim 1, characterized in that: A partition is fixedly installed inside the chamber. The partition is located below the blow pipe and has blow ports along its thickness direction that correspond one-to-one with the nozzles of the multiple blow pipes. The top openings of the multiple filter bags are respectively coaxially aligned with the multiple blow ports.

5. The main smoke filtering chamber for carbon black production according to claim 4, characterized in that: The bottom of the partition is fixedly provided with multiple bag cages that are coaxially aligned with the blow nozzle. The bag cage is composed of a support ring plate at the top and multiple support ribs at the bottom. The filter bag is fitted inside the bag cage, and the surface of the filter bag is recessed inward to form a groove for accommodating the support rib. The groove extends in the axial direction and is consistent with the length of the support rib.

6. The main filter chamber for carbon black production according to claim 5, characterized in that: Each of the blowpipes has a blowhead fixed coaxially at its nozzle. The bottom of the blowhead is fixedly connected to the top of the support ring plate by multiple support rods, which are distributed circumferentially around the blowhead.

7. The main smoke filtering chamber for carbon black production according to claim 6, characterized in that: The bottom of each of the multiple support rods is fixedly connected to the support ring plate by bolts.

8. The main smoke filtering chamber for carbon black production according to claim 7, characterized in that: A blower sleeve is fixedly installed on the top of each of the multiple support rods, and the blower sleeve is fitted inside the blower head.

9. The main smoke filtering chamber for carbon black production according to claim 1, characterized in that: It also includes a temperature control system; The temperature control system includes a temperature sensor fixed inside the L-shaped pipe and a controller electrically connected to the temperature sensor. The controller is electrically connected to the electric heating wire and is used to control the hot air temperature within a preset temperature range to prevent the temperature of the carbon black flue gas from falling below the dew point.

Images