Sectional type circulating dust remover applied to dry quenching process

Abstract

The sectional type circulating dust remover comprises a primary dust removal barrel with a flow guide cover and a dust collection hopper arranged on the upper portion and the lower portion respectively, a dust removal disc communicated with an air inlet channel is rotationally installed in the primary dust removal barrel, and a secondary dust removal barrel with an opening in the front end is fixedly installed at the top end of the flow guide cover; according to the invention, a dust removal mode combining gravitational dust removal and cloth bag dust removal is adopted, a plurality of gas inlet channels are matched with a rotating dust removal disc, inert gas is subjected to multi-chamber split-flow treatment, the inert gas rushes into a separation cavity, large particles and gas are promoted to be separated, primary dust removal is completed, and light gas moves upwards and is guided into a secondary dust removal cylinder through a gas guide pipe; the rotary cloth bag is used for secondary dust removal, the dust removal surface is continuously changed in the process, the dust removal effect is improved, the rotary cloth bag is subjected to reverse blowing treatment through the blowing assembly in the dust removal process, the problem of cloth bag blockage is solved, segmented dust removal treatment is achieved, and the recycling standard is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coke making dust removal, and more specifically to a segmented circulating dust collector used in a coke dry quenching process. Background Art

[0002] Coke quenching is an important link in the coke production process. There are two types of coke quenching: wet coke quenching and dry coke quenching. At present, most people use dry coke quenching to meet the requirements of environmental protection and energy saving. A set of dry coke quenching system consists of a coke quenching furnace, a primary dust removal, a preheating boiler, a secondary dust removal and a circulating fan. In the dry coke quenching process, 1000°C red coke is loaded from the top of the dry quenching furnace, and the low-temperature inert circulating gas of 130°C is blown into the red coke layer in the cooling section of the dry quenching furnace by the circulating fan to absorb the sensible heat of the red coke. The cooled coke (below 200°C) is discharged from the bottom of the dry quenching furnace. The high-temperature inert gas coming out of the annular flue of the dry quenching furnace flows through the dry quenching boiler for heat exchange. The boiler generates steam. The cooled inert gas is re-blown into the dry quenching furnace by the circulating fan. The inert gas is circulated in a closed system. Before the exchange process, a dust collector is needed to remove large particles in the gas.

[0003] Traditional dust collectors generally use gravity dust removal to remove dust. A baffle is used to change the direction of the airflow to separate large particles from the gas. This can only remove some large particles, while small particles will escape with the gas. The dust removal effect is not good. Dust bags are mostly used for dust removal, but the bags are easily clogged by particulate matter. After a period of use, the bags are easily saturated with dust and need to be frequently replaced and cleaned, which has certain disadvantages.

[0004] Therefore, a segmented circulating dust collector applied to the dry coke quenching process is proposed to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the existing practical problems. Compared with the existing technology, the present invention provides a segmented circulating dust collector used in the dry quenching process. It is a dust removal mode that combines gravity dust removal with bag dust removal. Multiple air inlet channels cooperate with a rotating dust removal disk to perform multi-chamber diversion treatment on the inert gas. The inert gas rushes into the separation chamber to separate large particles and gas, completing the initial dust removal. The light gas moves upward and is introduced into the secondary dust removal cylinder by the air guide pipe. The secondary dust removal is carried out through the rotating bag. This process continuously changes the dust removal surface and improves the dust removal effect. In the dust removal process, the blowing component is used to perform reverse blowing treatment on the rotating bag to solve the problem of bag blockage, thereby realizing segmented dust removal treatment and meeting the recycling standard.

[0006] The object of the present invention can be achieved by the following technical scheme: a segmented circulating dust collector used in a dry coke quenching process, comprising a primary dust collecting cylinder with a guide cover and an ash collecting hopper respectively on the upper and lower sides, a plurality of air inlet channels connected to the outer end wall of the primary dust collecting cylinder, a dust collecting disc rotatably installed inside the primary dust collecting cylinder, a plurality of separation chambers connected to the air inlet channels are annularly provided inside the dust collecting disc, and an exhaust port and an ash dropping port are respectively provided at the upper and lower ends of the separation chamber away from the air inlet channels;

[0007] A secondary dust removal cylinder with an opening at the front end is fixedly installed on the top of the air guide cover, a secondary dust removal structure is rotatably installed inside the secondary dust removal cylinder, and an exhaust pipe fixedly connected to the inner end of the secondary dust removal structure is rotatably installed on the rear end of the secondary dust removal cylinder;

[0008] An air inlet is provided at one end of one side of the secondary dust removal cylinder, and an air ventilation box is fixedly installed at the air inlet. The air ventilation box is connected with the air guide cover through an air guide pipe, and a dust discharge hopper connected with the dust collection channel formed in the middle of the dust removal plate is fixedly installed on the top of the air guide cover, and a dust collection port connected with the dust discharge hopper is provided at the bottom end of the secondary dust removal cylinder, and a blowing assembly that penetrates into the interior of the secondary dust removal structure and is arranged toward the dust collection port is fixedly installed on the front side of the secondary dust removal cylinder.

[0009] Furthermore, the separation chamber is a "Y"-shaped structure that opens along the circumferential edge of the dust removal disk. The inner wall of the separation chamber close to the exhaust port and the ash droplet is a dust barrier wall. During the rotation of the dust removal disk, the opening of the separation chamber away from the ash droplet is first connected with the air inlet channel, and the inert gas rushes into the separation chamber from the air inlet channel. The airflow impacts the dust barrier wall. The opened exhaust port is used to change the direction of the airflow to separate large particles from the gas. Large particles of dust fall from the ash droplet, and the gas that has been initially dust-removed moves upward through the exhaust port to remove large particles in the inert gas.

[0010] Furthermore, the upper and lower ends of the dust removal disc are rotatably connected to the upper and lower inner walls of the primary dust removal cylinder through a rotating ring, an internal gear is sleeved on the rotating ring located below, and a drive motor is fixedly installed on the outside of the bottom end of the primary dust removal cylinder, and the driving end of the drive motor is fixedly connected to an external gear meshing with the internal gear. During the gravity dust removal process, multiple air intake channels cooperate with the rotating dust removal disc to divert the inert gas and improve the initial dust removal efficiency.

[0011] Furthermore, the secondary dust removal structure includes a rotating drum frame rotatably installed inside the secondary dust removal cylinder, the front end of the rotating drum frame is fixed with an end cover rotatably connected to the front end opening of the secondary dust removal cylinder, and the inner side of the rotating drum frame is covered with a cloth bag.

[0012] Furthermore, a plurality of diversion slots are provided on the rotating drum frame along the circumferential direction, and the exhaust pipe is fixedly penetrated through the rear end wall of the rotating drum frame and is connected with the interior of the cloth bag.

[0013] Furthermore, a connecting frame is fixed to the end of the ventilation box close to the exhaust pipe, and a pair of transmission gears that are meshed and connected with each other are rotatably installed on the connecting frame, one of the transmission gears is fixedly sleeved on the exhaust pipe, and a driving motor 2 connected to the other transmission gear is fixed to the outer end of the connecting frame.

[0014] Furthermore, the blowing assembly includes a blowing pipe that passes through the axis of the end cover of the rotating drum frame and extends to the inner side of the cloth bag. A plurality of blowing nozzles facing the dust outlet are fixed to the bottom end of the blowing pipe. The outer end of the blowing pipe is rotatably connected to the end cover, and the outer end of the blowing pipe is fixedly mounted on the end of the ventilation box through a connecting frame.

[0015] Furthermore, the outer end of the blowing pipe is externally connected to an air intake pipe, and the air intake pipe is provided with a pulse valve.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This scheme is a dust removal mode that combines gravity dust removal with bag dust removal, and improves the new dust removal mode. During the gravity dust removal process, multiple air inlet channels cooperate with the rotating dust removal disk to divert the inert gas for treatment. On the one hand, the treatment area is expanded. On the other hand, the treatment disk 4 is set to be rotating, which is conducive to increasing the impact force of the gas rushing into the dust barrier wall of the separation chamber. The exhaust port is used to change the direction of the air flow, thereby improving the separation effect between the gas and particulate dust, promoting the separation of large particles and gas, and completing the first stage of preliminary dust removal. The light gas is introduced upward into the guide cover through the exhaust port, and then the booster air pump and the air guide pipe cooperate to introduce the gas into the secondary dust removal cylinder, and the rotating bag is used for two-stage treatment. This process continuously changes the dust removal surface, and the dust removal effect is effectively improved through two consecutive segmented dust removals.

[0018] (2) This scheme adds a blowing assembly to the inner side of the bag of the secondary dust removal structure. The blowing structure consists of a blowing pipe with multiple blowing nozzles and an air inlet pipe with a pulse valve. During the secondary dust removal process, the rotating bag is blown in the reverse direction toward the dust outlet through multiple blowing nozzles. The dust attached to the bag falls downward through the dust outlet and the dust discharge hopper. After moving a certain distance, the gas blown downward moves upward again, solving the problem that the bag is easily blocked by dust. The bag can be recycled and its service life is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0020] Figure 2 A schematic diagram of the external structure of the present invention from another perspective;

[0021] Figure 3 It is an overall cross-sectional view of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the junction between the primary dust removal cylinder and the dust removal disk of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure when the dust removal disk of the present invention is separated from the primary dust removal cylinder;

[0024] Figure 6 It is a structural schematic diagram of the present invention when the rotating dust removal disk is used for initial dust removal;

[0025] Figure 7 It is a bottom view of the junction of the air guide cover and the secondary dust removal cylinder of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the secondary dust removal cylinder and the ventilation box of the present invention when they are detached;

[0027] Fig. 9 It is a structural schematic diagram from another perspective when the secondary dust removal cylinder and the ventilation box of the present invention are detached;

[0028] Fig.10 It is a cross-sectional view of the junction between the secondary dust removal cylinder and the air guide cover of the present invention;

[0029] Fig.11 This is a cross-sectional view from another perspective of the junction between the secondary dust removal cylinder and the air guide cover of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Primary dust collector; 101. Air inlet channel; 2. Air guide cover; 3. Ash collecting hopper; 4. Dust collecting disc; 401. Separation chamber; 402. Exhaust port; 403. Ash outlet port; 404. Dust outlet channel; 5. Internal gear; 6. External gear; 7. Driving motor 1; 8. Secondary dust collector; 801. Exhaust pipe; 9. Rotating drum rack; 10. Cloth bag; 11. Ventilation box; 12. Booster air pump; 13. Air guide pipe; 14. Ash hopper; 15. Transmission gear; 16. Driving motor 2; 17. Blowing pipe; 171. Blowing nozzle; 18. Air inlet pipe. DETAILED DESCRIPTION

[0032] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0033] Example 1: The present invention discloses a segmented circulating dust collector used in a dry coke quenching process. Figure 1-Figure 3 It includes a primary dust removal cylinder 1 with a guide cover 2 and an ash collecting hopper 3 respectively. The guide cover 2 is a conical structure that is wide at the top and narrow at the bottom. The ash collecting hopper 3 is a conical structure that is narrow at the top and wide at the bottom. The primary dust removal cylinder 1, the guide cover 2, and the ash collecting hopper 3 are connected to each other.

[0034] See also Figure 3-Figure 4 A dust collecting disc 4 is rotatably installed inside the primary dust collecting cylinder 1. The upper and lower ends of the dust collecting disc 4 are rotatably connected with the upper and lower inner walls of the primary dust collecting cylinder 1 through a rotating ring. An internal gear 5 is sleeved on the rotating ring located at the bottom. A driving motor 7 is fixedly installed on the outside of the bottom end of the primary dust collecting cylinder 1. The driving end of the driving motor 7 is fixedly connected to an external gear 6 meshing with the internal gear 5.

[0035] See also Figure 4-Figure 6 The outer end wall of the primary dust removal cylinder 1 is externally connected with a plurality of air inlet channels 101, and a plurality of separation chambers 401 connected with the air inlet channels 101 are provided in an annular manner inside the dust removal disk 4. The separation chamber 401 is a "Y"-shaped structure opened along the circumferential edge of the dust removal disk 4. The upper and lower ends of the separation chamber 401 away from the air inlet channel 101 are respectively provided with an exhaust port 402 and an ash drop port 403 connected with the guide cover 2 and the ash hopper 3, and the inner wall of the separation chamber 401 close to the exhaust port 402 and the ash drop port 403 is a dust barrier wall;

[0036] During the rotation of the dust removal disc 4, the opening of the separation chamber 401 on the side away from the dust outlet 403 is first connected to the air inlet 101, and the inert gas rushes into the separation chamber 401 from the air inlet 101. The airflow impacts the dust barrier wall. The exhaust port 402 is used to change the airflow direction. Since the dust particles have a large inertia, they cannot change direction with the gas and collide with the dust barrier wall, which causes large particles and gas to separate. The large particles of dust fall from the dust outlet 403 under the action of gravity, and the gas that has been preliminarily dusted moves upward through the exhaust port 402 to remove large particles in the inert gas. The separated large particles fall into the ash hopper 3 from the dust outlet 403 under the action of gravity.

[0037] During the gravity dust removal process, multiple air inlet channels 101 cooperate with the rotating dust removal disk 4. The multiple air inlet channels 101 are used to divert the high-temperature inert gas coming out of the annular flue of the dry quenching furnace. The high-temperature inert gas introduced by the air inlet channels 101 is continuously passed into the multiple rotating separation chambers 401 and is processed separately by the multiple separation chambers 401. On the one hand, the processing area is expanded. On the other hand, setting the processing disk 4 to be rotating is conducive to increasing the impact force of the gas rushing into the separation chamber 401, thereby improving the separation effect between the gas and particulate dust. The treated gas is then discharged upward from a separate exhaust port 402, and large particles of dust are separated downward from a separate ash drop port 403, effectively improving the initial dust removal efficiency.

[0038] See also Figure 1-Figure 3 A secondary dust removal cylinder 8 with a front opening is fixedly installed on the top of the air guide cover 2, and a secondary dust removal structure is installed in the secondary dust removal cylinder 8 for rotational driving. An exhaust pipe 801 fixedly connected to the inner end of the secondary dust removal structure is rotatably installed at the rear end of the secondary dust removal cylinder 8. The secondary dust removal structure includes a rotating drum frame 9 rotatably installed inside the secondary dust removal cylinder 8, and an end cover rotatably connected to the front opening of the secondary dust removal cylinder 8 is fixed at the front end of the rotating drum frame 9. A cloth bag 10 is installed on the inner side of the rotating drum frame 9. A plurality of diversion slots are opened on the rotating drum frame 9 along the circumferential direction. The exhaust pipe 801 is fixedly penetrated to the rear end wall of the rotating drum frame 9 and is connected to the inside of the cloth bag 10;

[0039] See also Figure 3 and Figure 8-Figure 10 An air inlet is provided at one end of one side of the secondary dust removal cylinder 8, and a ventilation box 11 is fixedly installed at the air inlet. The ventilation box 11 is connected to the inside of the guide cover 2 through a booster air pump 12 and an air duct 13. The light material gas is introduced upward into the guide cover 2. With the cooperation of the booster air pump 12 and the air duct 13, the gas is drawn into the ventilation box 11, and is diverted to the cloth bag 10 through the ventilation box 11, the air inlet of the secondary dust removal cylinder 8, and the diversion groove on the rotating cylinder frame 9. The cloth bag 10 performs secondary dust removal to remove tiny impurities in the gas.

[0040] A connecting frame is fixed to the end of the ventilation box 11 close to the exhaust pipe 801, and a pair of mutually meshing transmission gears 15 are rotatably installed on the connecting frame. One of the transmission gears 15 is fixedly sleeved on the exhaust pipe 801, and a driving motor 2 16 connected to the other transmission gear 15 is fixed to the outer end of the connecting frame. During the secondary dust removal process, the driving motor 2 16 is started, and the driving motor 2 16 cooperates with the pair of meshing transmission gears 15 to make the rotating drum frame 9 drive the cloth bag 10 to move in a circular direction, constantly changing the dust removal surface of the cloth bag 10, effectively improving the dust removal effect, and the gas after secondary treatment is discharged through the exhaust pipe 801, and the discharged gas is introduced into the dry quenching boiler for heat exchange treatment.

[0041] Embodiment 2: Based on Embodiment 1, this embodiment adds a spray assembly inside the secondary dust removal cylinder 8, and adds a dust discharge hopper 14 connected to the bottom end of the secondary dust removal cylinder 8 at the top of the air guide cover 2, which is used to periodically perform reverse spraying on the bag 10 during the secondary dust removal process to remove dust on the bag 10, as follows:

[0042] See also Figure 3 and Figure 7 A dust discharge hopper 14 connected to a dust collection channel 404 formed in the middle of the dust collecting plate 4 is fixedly installed on the top of the air guide cover 2. The dust collection channel 404 is located in the middle of the dust collecting plate 4 and is connected to the dust collecting hopper 3. A dust collection port connected to the dust discharge hopper 14 is provided at the bottom of the secondary dust collecting cylinder 8. The dust collection port, the dust discharge hopper 14, and the dust collection channel 404 form a secondary dust collection channel. The structure is coherent, and the gas separation space is fully utilized.

[0043] See also Figure 1 and Figure 7 as well as Fig.10 , Fig.11 A blowing assembly is fixedly installed on the front side of the secondary dust removal cylinder 8, which penetrates the interior of the secondary dust removal structure and is arranged toward the dust outlet. The blowing assembly is movably connected with the end of the secondary dust removal structure, wherein the blowing assembly includes a blowing pipe 17 which penetrates the axis of the end cover of the rotating cylinder frame 9 and extends to the inside of the cloth bag 10, and a plurality of blowing nozzles 171 facing the dust outlet are fixed to the bottom end of the blowing pipe 17, and the outer end of the blowing pipe 17 is rotatably connected with the end cover, and the outer end of the blowing pipe 17 is fixedly installed on the end of the ventilation box 11 through a connecting frame, and the outer end of the blowing pipe 17 is externally connected with an air inlet pipe 18, and a pulse valve is provided on the air inlet pipe 18;

[0044] During the secondary dust removal process, a pulsed airflow is introduced into the blowing pipe 17 through the air inlet pipe 18, and the airflow passes through multiple blowing nozzles 171 to blow the rotating cloth bag 10 in the opposite direction toward the dust collecting port. The dust attached to the cloth bag 10 falls downward through the dust collecting port, the ash discharge hopper 14, and the dust collecting channel 404 under the impact of the high-pressure gas, thereby solving the problem of easy clogging of the cloth bag and allowing the cloth bag 10 to be recycled and the service life to be extended. The gas blown downward moves upward again after moving a certain distance, and the gas that removes impurities is introduced into the cloth bag 10 through the dust collecting port and the diversion slot on the rotating drum frame 9, and is uniformly discharged to the outside through the exhaust pipe 801.

[0045] In summary, this scheme is a dust removal mode that combines gravity dust removal with bag dust removal, and improves the new dust removal mode. In the process of gravity dust removal, multiple air inlet channels 101 cooperate with the rotating dust removal disk 4 to divert the inert gas. The inert gas rushes into the separation chamber 401 from the air inlet channel 101, and the air flow impacts the dust blocking wall. The exhaust port 402 is used to change the air flow direction to promote the separation of large particles and gas.

[0046] In this process, the high-temperature inert gas introduced by the air inlet channel 101 is continuously passed into the multiple separation chambers 401 that are rotating, and is circulated and processed separately by the multiple separation chambers 401. On the one hand, the processing area is expanded, and on the other hand, the processing disk 4 is set to be rotating, which is conducive to increasing the impact force of the gas rushing into the separation chamber 401, thereby improving the separation effect between the gas and the particulate dust. The treated gas is then discharged upward from the separate exhaust port 402, and the large dust particles are separated downward from the separate dust outlet 403, which effectively improves the initial dust removal efficiency.

[0047] The gas treated by the primary dust removal is introduced upward into the guide cover 2 through the exhaust port 402, and then the booster air pump 12 and the air guide pipe 13 cooperate to introduce the gas into the secondary dust removal cylinder 8, and is subjected to secondary treatment by the rotating secondary dust removal structure, and is introduced into the bag 10 through the diversion slot on the rotating cylinder frame 9. The dust removal surface is continuously changed through the circular rotation of the bag 10, thereby improving the dust removal effect;

[0048] The rotating bag 10 is periodically blown in the reverse direction toward the dust outlet by the blowing assembly to solve the problem that the bag is easily clogged by particulate matter, and the dust blown downward falls through the dust discharge hopper 14 and the dust collection channel 404, and is collected by the dust collecting hopper 3 together with the dust initially treated.

[0049] The above are only preferred specific implementation modes of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A segmented circulating dust collector used in a dry coke quenching process comprises a primary dust removal cylinder (1) with a flow guide cover (2) and a dust collecting hopper (3) at the top and bottom, respectively, and is characterized in that: The outer end wall of the primary dust removal cylinder (1) is externally connected to a plurality of air inlet passages (101); a dust removal disc (4) is rotatably mounted inside the primary dust removal cylinder (1); a plurality of separation chambers (401) connected to the air inlet passages (101) are provided in an annular manner inside the dust removal disc (4); an exhaust port (402) and an ash drop port (403) are respectively provided at the upper and lower ends of the separation chamber (401) away from the air inlet passages (101); A secondary dust removal cylinder (8) with a front end opening is fixedly mounted on the top of the air guide cover (2); a secondary dust removal structure is rotatably mounted inside the secondary dust removal cylinder (8); an exhaust pipe (801) fixedly connected to the inner end of the secondary dust removal structure is rotatably mounted on the rear end of the secondary dust removal cylinder (8); An air inlet is provided at one end of one side of the secondary dust removal cylinder (8), and a ventilation box (11) is fixedly installed at the air inlet. The ventilation box (11) is connected to the air guide cover (2) via an air guide pipe (13). A dust discharge hopper (14) connected to a dust collection channel (404) formed in the middle of the dust removal disc (4) is fixedly installed at the top of the air guide cover (2). A dust discharge port connected to the dust discharge hopper (14) is provided at the bottom end of the secondary dust removal cylinder (8). A spray assembly penetrating into the interior of the secondary dust removal structure and arranged toward the dust discharge port is installed at the front side of the secondary dust removal cylinder (8).

2. The segmented circulating dust collector used in the dry coke quenching process according to claim 1 is characterized in that: The separation chamber (401) is a "Y"-shaped structure that opens along the circumferential edge of the dust removal disc (4), and the inner wall of the separation chamber (401) close to the exhaust port (402) and the dust drop port (403) is a dust blocking wall.

3. The segmented circulating dust collector used in the dry coke quenching process according to claim 1 is characterized in that: The upper and lower ends of the dust removal disc (4) are rotatably connected to the upper and lower inner walls of the primary dust removal cylinder (1) through a rotating ring, and an internal gear (5) is sleeved on the rotating ring located at the bottom. A driving motor (7) is fixedly installed on the outside of the bottom end of the primary dust removal cylinder (1), and the driving end of the driving motor (7) is fixedly connected to an external gear (6) meshing with the internal gear (5).

4. The segmented circulating dust collector used in the dry coke quenching process according to claim 1 is characterized in that: The secondary dust removal structure comprises a rotating drum frame (9) rotatably mounted inside the secondary dust removal drum (8); an end cover rotatably connected to the front end opening of the secondary dust removal drum (8) is fixed to the front end of the rotating drum frame (9); and a cloth bag (10) is mounted on the inner side of the rotating drum frame (9).

5. The segmented circulating dust collector used in the dry quenching process according to claim 4 is characterized in that: The rotating drum frame (9) is provided with a plurality of diversion slots along the circumferential direction, and the exhaust pipe (801) is fixedly connected to the rear end wall of the rotating drum frame (9) and communicates with the interior of the cloth bag (10).

6. The segmented circulating dust collector used in the dry coke quenching process according to claim 1 is characterized in that: A connecting frame is fixed to the end of the ventilation box (11) on the side close to the exhaust pipe (801), and a pair of mutually meshing transmission gears (15) are rotatably mounted on the connecting frame, wherein one transmission gear (15) is fixedly sleeved on the exhaust pipe (801), and a second driving motor (16) connected to the other transmission gear (15) is fixed to the outer end of the connecting frame.

7. The segmented circulating dust collector used in the dry coke quenching process according to claim 1 is characterized in that: The blowing assembly comprises a blowing pipe (17) which passes through the axis of the end cover of the rotating drum frame (9) and extends to the inside of the cloth bag (10), and a plurality of blowing nozzles (171) facing the dust outlet are fixed at the bottom end of the blowing pipe (17).

8. The segmented circulating dust collector used in the dry quenching process according to claim 7 is characterized in that: The outer end of the blowing pipe (17) is externally connected to an air intake pipe (18), and a pulse valve is provided on the air intake pipe (18).

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