Dust removal system for waste gas of smelting furnace

Abstract

The invention relates to a smelting furnace waste gas dust removal system and belongs to the technical field of smelting furnace waste gas treatment, in particular to a smelting furnace waste gas dust removal system which comprises a top cover and an ash hopper, a partition plate is arranged in the top cover and divides the interior of the top cover into an air inlet area and an air outlet area, and a cinder valve is arranged at the bottom of the ash hopper. A plurality of cooling modules are arranged between the lower portion of the top cover and the upper portion of the ash hopper, each cooling module comprises a cooling shell and a waste gas pipe longitudinally penetrating through the cooling shell, the top of each waste gas pipe is communicated with the interior of the top cover, and the bottom of each waste gas pipe is communicated with the ash hopper. The two transverse side walls of the cooling shell are both open, and one side of the cooling shell is connected with a heat exchange fan. Dust accumulation can be effectively reduced through a dust shaking spring and a firing pin in the waste gas pipe, meanwhile, airflow distribution is optimized through a rotating sleeve and a fan blade structure, and the dust collection efficiency is improved through a dust partition plate and a dust guide hopper. The purposes of efficiently removing dust, reducing energy consumption and optimizing the waste gas treatment effect are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of industrial furnace waste gas treatment, and in particular to a furnace waste gas dust removal system. Background Art

[0002] Furnace exhaust gas dust removal systems are essential equipment in industrial production, playing a crucial role in fields such as metal smelting and chemical manufacturing. By efficiently treating the high-temperature, dusty gases generated during the smelting process, they not only effectively reduce environmental pollution but also protect the safety and health of production equipment and operators. In recent years, with increasing environmental protection requirements and the continuous optimization of production processes, furnace exhaust gas treatment technology has rapidly developed, and a variety of dust removal equipment has emerged, providing strong support for the sustainable development of industrial production.

[0003] Furnace waste treatment systems typically include a housing with an air inlet and outlet, and several heat exchange tubes running through the housing. When exhaust gas enters the housing through the air inlet, it exchanges heat with the tubes, lowering its temperature before ultimately being discharged through the outlet. When the exhaust gas temperature is high, ensuring sufficient heat exchange time and effectiveness often requires extending the exhaust gas flow path within the housing. This is typically achieved by increasing the height of the housing.

[0004] The aforementioned related technologies suffer from the following drawbacks: This design, which increases the height of the integrated housing, increases the overall size of the equipment, significantly complicating transportation and installation. This is particularly problematic in applications requiring frequent relocation or limited space. Therefore, improving the transportability of the equipment without compromising the flow path and treatment performance has become a critical challenge that urgently needs to be addressed. Summary of the Invention

[0005] In order to improve transportation convenience without affecting the flow path, the present application provides a furnace exhaust gas dust removal system.

[0006] A furnace exhaust dust removal system includes a top cover and an ash hopper. The top cover is provided with a partition that divides the interior of the top cover into an air inlet area and an air outlet area. The bottom of the ash hopper is provided with an ash discharge valve. Several cooling modules are arranged between the bottom of the top cover and the top of the ash hopper. The cooling module includes a cooling shell and an exhaust pipe longitudinally passing through the cooling shell. The top of the exhaust pipe is connected to the interior of the top cover, and the bottom of the exhaust pipe is connected to the ash hopper. Both side transverse walls of the cooling shell are open and a heat exchange fan is connected to one side.

[0007] By adopting the above technical solution, the flow path of the exhaust gas is from the air inlet area downward into several exhaust pipes below the air inlet area, then turning back from the ash hopper, entering several exhaust pipes below the air outlet area, and finally flowing out from the air outlet area. During the process of the exhaust gas not flowing in the exhaust pipe, it will exchange heat with the air circulating inside the cooling shell with the help of the pipe wall of the exhaust pipe, thereby achieving cooling. In addition, during the process of the exhaust gas turning back from the ash hopper, larger particles of dust will also be retained in the ash hopper. After accumulating to a certain level, the ash discharge valve will be opened manually or automatically and periodically to discharge the ash. In addition, the overall design of this dust removal system adopts a split design, which decomposes the overall higher structure into a top cover, an ash hopper and several cooling modules, realizing split transportation and on-site assembly, thereby improving transportation convenience.

[0008] Preferably, it further includes a bracket, the top cover and the ash hopper are connected to the bracket, the bracket is provided with a plurality of platforms, the platforms are provided with mounting holes for placing the cooling module, and the bracket is also provided with a ladder, and the ladder is connected to the plurality of platforms.

[0009] By adopting this technical solution, the furnace exhaust gas dust removal system has added brackets to connect the top cover and ash hopper. A platform on the bracket provides a mounting location for the cooling module, while a ladder facilitates movement between different platforms. This design not only improves the overall stability of the system but also facilitates on-site assembly and maintenance, further enhancing transportation and installation efficiency.

[0010] Preferably, a dust shaking spring is provided inside the exhaust pipe, the end of the dust shaking spring is connected to the inner wall of the exhaust pipe, and a dust shaking pin is provided on the outer wall of the dust shaking spring.

[0011] By adopting the above technical solution, the setting of the dust shaking spring enables the inner wall of the exhaust pipe to vibrate, promoting the falling off of the dust layer hanging on the wall; the dust shaking pin can directly contact the dust layer, and cooperate with irregular vibration to achieve effective peeling of the dust layer, thereby improving the cleaning effect of the inner wall of the exhaust pipe.

[0012] Preferably, a twisting sleeve is rotatably provided at both ends of the exhaust pipe, a twisting fan blade is fixedly provided inside the twisting sleeve, and both ends of the dust shaking spring are respectively connected to the corresponding twisting sleeve.

[0013] By adopting this technical solution, the flow of exhaust gas drives the twisting blades and twisting sleeve to rotate, which in turn drives the dust-shaking spring to automatically rotate. During the dust-shaking spring's rotation, the position of the dust-shaking striker is continuously adjusted, improving the comprehensiveness of the dust layer on the inner wall of the exhaust pipe and enhancing the cleaning effect.

[0014] Preferably, two rotating sleeves are rotatably provided on the top of the ash hopper and the two rotating sleeves are respectively located below the air inlet area and the air outlet area. Rotating fan blades are fixedly provided inside the rotating sleeves. A cover plate is provided on the top of the rotating sleeve. A plurality of guide holes are provided through the cover plate, and the plurality of guide holes are evenly distributed with the center of the cover plate as the center of the circle.

[0015] By adopting the above technical solution, whether the exhaust gas in the air inlet area flows downward or the exhaust gas in the ash hopper flows upward, it will push the rotating fan blades at the corresponding position to rotate, thereby realizing the rotation of the rotating sleeve and the cover plate as a whole. During this process, several guide holes will dynamically adjust their positions, and the flow rates of several exhaust pipes will also change accordingly. When the positive projection of the exhaust pipe is located in the guide hole, the flow rate in the exhaust pipe increases. When the positive projection of the exhaust pipe deviates from the guide hole, the flow rate in the exhaust pipe decreases. The dynamic adjustment of the flow rate in the exhaust pipe can also promote the shedding of the ash layer on the inner wall of the exhaust pipe to a certain extent. The dynamic air flow rate will also drive the dynamic change of the shaking frequency and amplitude of the dust shaking spring.

[0016] Preferably, a dust-shaking ring plate is fixedly provided in the middle of the dust-shaking spring, and the outer edge of the dust-shaking ring plate is gap-fitted with the exhaust pipe.

[0017] By adopting this technical solution, the dust-shaking ring plate allows the exhaust gas to exert an axial thrust on the middle portion of the dust-shaking spring during its flow, causing it to move up or down. This dynamic change not only changes the distribution density of the dust-shaking pins within the exhaust pipe, but also achieves better cleaning results when the pin density increases in certain locations, thereby improving the efficiency and comprehensiveness of dust cleaning in all areas of the exhaust pipe.

[0018] Preferably, an upper adjustment plate and a lower adjustment plate are rotatably provided inside the dust-shaking ring plate, and ventilation holes are provided through the upper adjustment plate and the lower adjustment plate.

[0019] By adopting the above technical solution, the setting of the upper and lower plates can change the pushing force of the airflow on the dust-shaking ring plate by adjusting the degree of overlap of the ventilation holes. When the degree of overlap decreases, the pushing effect of the airflow on the dust-shaking ring plate increases, thereby making the position change range of the middle part of the dust-shaking spring larger. This dynamic change increases the density of the dust-shaking pins on the compressed side, thereby obtaining a better cleaning effect in a certain place. At the same time, the dynamic change of the dust-shaking pin density can improve the cleaning effect of various parts of the exhaust pipe, further improving the overall performance of the dust removal system.

[0020] Preferably, an adjustment hole is provided inside the rotating sleeve, an adjustment rod is threadedly connected to the adjustment hole, a damping block is provided at the end of the adjustment rod, and the damping block is against the inner wall of the ash hopper.

[0021] By adopting the above technical solution, by providing an adjustment hole inside the rotating sleeve and utilizing an adjustment rod threaded into the adjustment hole and a damping block with the end of the adjustment rod abutting the inner wall of the ash hopper, the degree of contact between the damping block and the inner wall of the ash hopper can be flexibly adjusted, thereby changing the rotational speed of the rotating sleeve under the influence of airflow. Adjusting the rotational speed of the rotating sleeve dynamically affects the frequency of position changes of the guide holes on the cover plate, thereby changing the flow velocity distribution within the exhaust pipe. This dynamic flow velocity change helps to promote the shedding of the dust layer on the inner wall of the exhaust pipe, improving the cleaning effect.

[0022] Preferably, an ash partition plate is provided inside the ash hopper, the top wall of the ash partition plate is arc-shaped and the middle part is lower, and a plurality of ash dropping holes are provided through the ash partition plate.

[0023] By adopting this technical solution, the dust screen effectively guides dust in the exhaust gas toward the bottom of the ash hopper, preventing dust from accumulating in dead corners within the hopper. The curved top wall and lower center of the screen allow dust to naturally slide toward the bottom of the hopper under the action of gravity, thereby improving dust collection efficiency. The presence of several ash drop holes further promotes dust settling and concentration, helping to enhance dust removal efficiency and facilitate subsequent ash unloading.

[0024] Preferably, an ash collecting funnel is provided inside the ash dropping hole, and the inner edge diameter of the ash collecting funnel decreases from top to bottom.

[0025] By adopting this technical solution, the design of the inner edge of the ash funnel, which decreases from top to bottom, effectively guides dust along the funnel wall to the bottom of the ash hopper, reducing dust accumulation and retention in the ash drop holes, thereby improving the dust removal efficiency of the dust removal system and reducing the risk of blockage. It also reduces the risk of dust accumulated under the dust partition board escaping.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By decomposing the overall structure into the top cover, ash hopper and several cooling modules, separate transportation and on-site assembly are achieved, effectively solving the transportation inconvenience caused by the equipment's excessive height while ensuring that the exhaust gas flow path is not affected; 2. During the flow, the exhaust gas exchanges heat with the air inside the cooling shell to achieve efficient cooling. Combined with the ash hopper, it can retain larger dust particles, significantly improving the dust removal effect. 3. The design of the dust shaking spring and its striker can cause vibration as the exhaust gas flows, promote the shedding of dust layer on the inner wall of the exhaust pipe, reduce the wall hanging phenomenon, and improve the long-term operation stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an embodiment of the present application; Figure 2This is a structural diagram illustrating the connection between the cooling housing and the exhaust pipe in an embodiment of the present application; Figure 3 This is a structural diagram illustrating the connection between the exhaust pipe and the dust shaking spring in an embodiment of the present application; Figure 4 This is a structural diagram illustrating the connection relationship between the upper adjustment plate and the lower adjustment plate in an embodiment of the present application; Figure 5 This is a structural diagram illustrating the connection between the rotating sleeve and the ash hopper in the embodiment of the present application; Figure 6 This is a structural diagram illustrating the positional relationship between the exhaust pipe and the guide hole in the embodiment of the present application; Figure 7 This is a structural diagram used to illustrate the connection relationship between the damping block and the ash hopper in the embodiment of the present application.

[0028] In the picture: 1. Top cover; 11. Air inlet area; 12. Air outlet area; 2. Ash hopper; 21. Ash discharge valve; 22. Rotating sleeve; 23. Rotating fan blade; 24. Cover plate; 25. Diversion hole; 26. Adjustment hole; 27. Adjustment rod; 28. Damping block; 3. Cooling module; 31. Cooling shell; 32. Exhaust pipe; 33. Heat exchange fan; 4. Bracket; 41. Platform; 42. Ladder; 5. Twist the sleeve; 51. Twist the fan blade; 52. Shake the dust spring; 53. Shake the dust striker; 6. Dust-shaking ring plate; 61. Adjust the upper plate; 62. Adjust the lower plate; 60. Ventilation hole; 7. Ash partition board; 70. Ash drop hole; 71. Ash hopper. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention and are not all possible implementations. Those skilled in the art can fully combine the embodiments of the present invention to derive other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0030] Reference Figure 1 A furnace exhaust dust removal system includes a top cover 1, an ash hopper 2, and several cooling modules 3 located therebetween. A partition is provided within the top cover 1, dividing the interior of the top cover 1 into an air inlet area 11 and an air outlet area 12. An ash discharge valve 21 is provided at the bottom of the ash hopper 2 to facilitate the discharge of accumulated ash. The exhaust gas flows from the air inlet area 11 into the cooling modules 3, then returns within the ash hopper 2, passes through the cooling modules 3, and is finally discharged from the air outlet area 12.

[0031] Reference Figure 1 and Figure 2 The cooling module 3 includes a cooling shell 31 and several exhaust pipes 32 longitudinally passing through the cooling shell 31. The top of the exhaust pipe 32 is connected to the inside of the top cover 1, and the bottom of the exhaust pipe 32 is connected to the ash hopper 2. When the exhaust pipe 32 is connected to the air inlet area 11, the internal airflow direction is downward. When the exhaust pipe 32 is connected to the air outlet area 12, the internal airflow direction is upward. Both side walls of the cooling shell 31 are open and one side is connected to a heat exchange fan 33. The heat exchange fan 33 can be an axial flow fan or a centrifugal fan. In this embodiment, an axial flow fan is selected. The exhaust pipe 32 is made of high-temperature resistant stainless steel, and its outer wall is smooth to facilitate heat exchange. The exhaust pipe 32 can be connected to the top cover 1 and the ash hopper 2 by threaded connection or flange connection, which ensures sealing while facilitating on-site installation and disassembly.

[0032] Reference Figure 1 , all components of the present application are installed on the bracket 4, and the bracket 4 includes columns, beams and platforms 41. The columns are welded with channel steel, the beams are made of I-beams, and the platform 41 can be paved with patterned steel plates. In this embodiment, the number of platforms 41 corresponds to the cooling module 3, and mounting holes are provided on the platform 41 for fixing the cooling module 3. A ladder 42 is also provided on the side of the bracket 4. The ladder 42 is welded with angle steel and coated with anti-slip paint on the surface. In order to reinforce the bracket 4 and prevent deformation, a diagonal brace is provided between the column and the beam in this embodiment. The diagonal brace is made of steel pipe to enhance structural stability. The bracket 4 adopts a modular design as a whole, and each component can be transported in a disassembled state, which improves the convenience of transportation.

[0033] Reference Figure 3 , both ends of the exhaust pipe 32 are rotatably provided with a torsion sleeve 5, which is made of stainless steel, and a torsion fan blade 51 is fixedly provided inside it, which is made of aluminum alloy and coated with an anti-corrosion coating. A dust-shaking spring 52 is fixed between the two torsion sleeves 5 by bolts, and the dust-shaking spring 52 is made of high-strength carbon steel. A dust-shaking striker 53 is provided on the outer wall of the dust-shaking spring 52, and the dust-shaking striker 53 is made of cemented carbide and has a conical tip. When the exhaust gas flows, the airflow impacts the dust-shaking spring 52, causing shaking, and the dust-shaking striker 53 randomly hits the inner wall of the exhaust pipe 32, thereby promoting the shedding of the wall dust layer. In addition, when the exhaust gas flows to the torsion fan blade 51, the airflow pushes the torsion fan blade 51 and the torsion sleeve 5 to rotate, thereby driving the dust-shaking spring 52 to rotate. The position of the dust-shaking striker 53 is continuously adjusted during the rotation of the dust-shaking spring 52, thereby further improving the comprehensiveness of the cleaning range.

[0034] Reference Figure 3 and Figure 4, a dust-shaking ring plate 6 is also welded and fixed to the middle part of the dust-shaking spring 52, and the outer edge of the dust-shaking ring plate 6 is gap-fitted with the exhaust pipe 32. The dust-shaking ring plate 6 does not affect the vibration of the dust-shaking spring 52. When the exhaust gas flows from the middle and side of the dust-shaking ring plate 6, it will exert an axial thrust, pushing the middle part of the dust-shaking spring 52 upward or downward. Therefore, the distribution density of the several dust-shaking pins 53 inside the same exhaust pipe 32 is also dynamically changing during the dynamic change of whether the exhaust gas is flowing or not. When the density of the dust-shaking pins 53 at a certain place becomes higher, a better cleaning effect can be obtained, and the dynamic change of the density of the dust-shaking pins 53 can improve the cleaning effect of various places in the exhaust pipe 32. In addition, an upper adjustment plate 61 and a lower adjustment plate 62 are rotatably provided inside the dust-shaking ring plate 6, and both the upper adjustment plate 61 and the lower adjustment plate 62 are penetrated by ventilation holes 60. By rotating the upper plate 61 or the lower plate 62, the degree of overlap between the ventilation holes 60 of the upper and lower layers can be adjusted, thereby adjusting the pushing force of the airflow on the dust shaking ring plate 6. When the degree of overlap is reduced, the airflow has a greater pushing effect on the dust shaking ring plate 6, and the position of the middle part of the dust shaking spring 52 changes more, and the compressed side can obtain a greater density of dust shaking pins 53.

[0035] Reference Figure 5 and Figure 6 Two rotating sleeves 22 are rotatably provided on the top of the ash hopper 2. The two rotating sleeves 22 correspond to the lower positions of the air inlet area 11 and the air outlet area 12 respectively. The rotating sleeve 22 is made of stainless steel, and a rotating fan blade 23 is fixedly provided inside it. The rotating fan blade 23 is made of aluminum alloy. A cover plate 24 is provided on the top of the rotating sleeve 22. The cover plate 24 is made of steel plate. A plurality of guide holes 25 are provided through the top of the cover plate 24. In this embodiment, four guide holes 25 are taken as an example. The four guide holes 25 are evenly distributed with the center of the cover plate 24 as the center of the circle. When the exhaust gas flows, it can push the rotating fan blades 23 to rotate, drive the rotating sleeve 22 and the cover plate 24 to rotate as a whole, and realize the dynamic adjustment of the position of the guide hole 25. Whether the exhaust gas in the air inlet area 11 flows downward or the exhaust gas in the ash hopper 2 flows upward, it will push the rotating fan blades 23 at the corresponding position to rotate, thereby realizing the overall rotation of the rotating sleeve 22 and the cover plate 24. During this process, several guide holes 25 will dynamically adjust their positions, and the flow rates of several exhaust pipes 32 will also change accordingly. When the positive projection of the exhaust pipe 32 is located in the guide hole 25, the flow rate in the exhaust pipe 32 increases. When the positive projection of the exhaust pipe 32 deviates from the guide hole 25, the flow rate in the exhaust pipe 32 decreases. The dynamic adjustment of the flow rate in the exhaust pipe 32 can also promote the shedding of the ash layer on the inner wall of the exhaust pipe 32 to a certain extent. The dynamic air flow rate will also drive the dynamic change of the shaking frequency and amplitude of the dust shaking spring 52.

[0036] In addition, refer to Figure 7The inner wall of the rotating sleeve 22 is also provided with an adjustment hole 26. An adjustment rod 27 is threadedly connected to the inner wall of the adjustment hole 26. The adjustment rod 27 is made of stainless steel and has a damping block 28 fixed to its end. The damping block 28 is made of rubber and abuts against the inner wall of the ash hopper 2. By rotating the adjustment rod 27, the degree of contact between the damping block 28 and the inner wall of the ash hopper 2 can be adjusted, thereby controlling the upper limit of the passive rotation speed of the rotating sleeve 22. The end of the adjustment rod 27 can be provided with a handwheel to facilitate manual adjustment by the operator.

[0037] Reference Figure 5 , an ash partition plate 7 is also provided inside the ash hopper 2. The ash partition plate 7 is made of steel plate, and is arc-shaped as a whole with a lower middle part. A number of ash dropping holes 70 are provided through the ash partition plate 7, and an ash guide funnel 71 is provided inside the ash dropping hole 70. The ash guide funnel 71 is made of stainless steel, and the inner edge diameter of the ash guide funnel 71 decreases from top to bottom. The arc-shaped design of the ash partition plate 7 is conducive to the ash material gathering in the middle part, avoiding the ash material from accumulating in the edge area. The design of the inner edge diameter of the ash guide funnel 71 decreasing from top to bottom allows the ash material to slide down naturally and in time under the action of gravity, reducing the possibility of blockage. In addition, the ash guide funnel 71 is also convenient for protecting the accumulated ash under the ash partition plate 7, preventing the accumulated ash from being rolled up by the airflow above or even escaping. Moreover, the rotating fan blades 23 will cause the ash hopper 2 to vibrate slightly during rotation, which can also promote the ash accumulated at the bottom of the ash guide funnel 71 to fall, reducing the occurrence of blockage.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A furnace exhaust gas dust removal system, characterized by: The invention comprises a top cover (1) and an ash hopper (2), wherein the top cover (1) has a partition plate inside and divides the inside of the top cover (1) into an air inlet area (11) and an air outlet area (12), and the bottom of the ash hopper (2) has an ash discharge valve (21). A plurality of cooling modules (3) are arranged between the bottom of the top cover (1) and the top of the ash hopper (2), and the cooling modules (3) include a cooling shell (31) and an exhaust pipe (32) longitudinally passing through the cooling shell (31). The top of the exhaust pipe (32) is connected to the inside of the top cover (1), and the bottom of the exhaust pipe (32) is connected to the ash hopper (2). Both side walls of the cooling shell (31) are open, and one side is connected to a heat exchange fan (33).

2. A furnace exhaust gas dust removal system according to claim 1, characterized in that: The utility model further comprises a bracket (4), the top cover (1) and the ash hopper (2) are both connected to the bracket (4), the bracket (4) is provided with a plurality of platforms (41), the platforms (41) are provided with mounting holes for placing the cooling modules (3), and the bracket (4) is also provided with a ladder (42), and the ladder (42) is connected to the plurality of platforms (41).

3. The furnace exhaust gas dust removal system according to claim 1, characterized in that: A dust shaking spring (52) is provided inside the exhaust pipe (32), the end of the dust shaking spring (52) is connected to the inner wall of the exhaust pipe (32), and a dust shaking striker (53) is provided on the outer wall of the dust shaking spring (52).

4. A furnace exhaust gas dust removal system according to claim 3, characterized in that: Both ends of the exhaust pipe (32) are rotatably provided with a twisting sleeve (5), a twisting fan blade (51) is fixedly provided inside the twisting sleeve (5), and both ends of the dust shaking spring (52) are respectively connected to the corresponding twisting sleeve (5).

5. The furnace exhaust gas dust removal system according to claim 3, characterized in that: Two rotating sleeves (22) are rotatably provided on the top of the ash hopper (2), and the two rotating sleeves (22) are respectively located below the air inlet area (11) and the air outlet area (12). Rotating blades (23) are fixedly provided inside the rotating sleeves (22). A cover plate (24) is provided on the top of the rotating sleeve (22). A plurality of guide holes (25) are provided through the cover plate (24), and the plurality of guide holes (25) are evenly distributed with the center of the cover plate (24) as the center of a circle.

6. A furnace exhaust gas dust removal system according to claim 5, characterized in that: A dust-shaking ring plate (6) is fixedly provided in the middle of the dust-shaking spring (52), and the outer edge of the dust-shaking ring plate (6) is clearance-matched with the exhaust pipe (32).

7. A furnace exhaust gas dust removal system according to claim 6, characterized in that: An upper adjustment plate (61) and a lower adjustment plate (62) are rotatably provided inside the dust-shaking ring plate (6), and ventilation holes (60) are provided through both the upper adjustment plate (61) and the lower adjustment plate (62).

8. The furnace exhaust gas dust removal system according to claim 5, characterized in that: An adjusting hole (26) is provided inside the rotating sleeve (22), an adjusting rod (27) is connected to the adjusting hole (26) through an internal thread, a damping block (28) is provided at the end of the adjusting rod (27), and the damping block (28) abuts against the inner wall of the ash hopper (2).

9. The furnace exhaust gas dust removal system according to claim 1, characterized in that: An ash partition plate (7) is provided inside the ash hopper (2). The top wall of the ash partition plate (7) is arc-shaped and the middle height is lower than the edge height. The ash partition plate (7) is penetrated by a plurality of ash dropping holes (70).

10. A furnace exhaust gas dust removal system according to claim 9, characterized in that: An ash collecting funnel (71) is provided inside the ash collecting hole (70), and the inner edge diameter of the ash collecting funnel (71) decreases from top to bottom.

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