Industrial furnace waste flue gas desulfurization and denitrification treatment recycling device

Abstract

The invention discloses an industrial furnace waste flue gas desulfurization and denitrification treatment recycling device which comprises a shell, a treatment mechanism is arranged in the shell, the treatment mechanism comprises a flue gas inlet pipe, a flue gas exhaust pipe, a flow dividing pipe, a spray head, a desulfurization pipe and a denitrification pipe, and adjusting mechanisms are arranged at the top ends of the desulfurization pipe and the denitrification pipe. The adjusting mechanism comprises a mounting sleeve, an adjusting sleeve, a matching sleeve, a transmission rod, a connecting plate, a control sleeve, a through hole and a sealing sleeve, the adjusting mechanism adjusts the flow through matching of the adjusting sleeve and the matching sleeve, the injection amount of limestone slurry and liquid nitrogen can be accurately controlled, and the optimal effect of desulfurization and denitrification reaction is ensured; according to the adjusting mechanism, the spiral groove is precisely matched with the matching block, and the design of the sliding type control sleeve is combined, so that the flow can be flexibly adjusted in the operation process, and the requirements for the medicament injection amount under different working conditions are met.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial production, and more particularly to a device for treating and recycling waste flue gas from an industrial furnace for desulfurization and denitrification. Background Art

[0002] In the industrial production process, especially in the high temperature combustion process, the exhaust gas emitted by industrial furnaces often contains a large amount of sulfur dioxide (SO2) and nitrogen oxides (NO x ), causing serious pollution to the atmospheric environment and requiring treatment. To effectively control such harmful gases, limestone slurry is widely used in existing technologies to carry out desulfurization and denitrification treatment by combining a certain proportion of chemical reagents. Although this method has a certain reaction efficiency, due to the intense chemical reactions and variable conditions during the reaction process, it is difficult to accurately control the injection amount of slurry and chemical substances in actual operation, which can easily lead to reagent waste or insufficient treatment efficiency, thereby affecting the overall flue gas purification effect;

[0003] On the other hand, with the continuous improvement of industrial energy efficiency and environmental protection requirements, flue gas treatment equipment must not only achieve efficient removal of pollutants, but also have good operational flexibility and economy. In traditional devices, limestone slurry and other denitrification agents are mostly injected through fixed-ratio mixing, which makes it difficult to flexibly adjust the ratio according to real-time exhaust gas concentration or component changes. This method not only reduces the automation level of the system, but also limits its adaptability to complex flue gas conditions. Therefore, there is an urgent need for a technical solution that can achieve precise adjustment of the injection amount of desulfurization and denitrification agents to improve the treatment effect and resource utilization efficiency of the overall system. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the problems existing in the prior art, the present invention provides a device for desulfurization, denitrification, treatment and reuse of industrial furnace waste flue gas to solve the technical problems mentioned in the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a desulfurization and denitrification treatment and reuse device for waste flue gas from an industrial furnace, comprising a shell, a treatment mechanism provided in the shell, the treatment mechanism comprising a smoke inlet pipe, a smoke exhaust pipe, a diversion pipe, a nozzle, a desulfurization pipe and a denitrification pipe, the smoke inlet pipe is connected to the outer wall of the shell, the smoke exhaust pipe is connected to the top of the shell, the diversion pipe is provided with multiple groups connected to the shell, the nozzle is provided with multiple groups distributed on the outer walls of multiple groups of external pipes, the desulfurization pipe and the denitrification pipe are respectively connected to the outer ends of the multiple groups of diversion pipes, the desulfurization pipe An adjusting mechanism is provided at the top of the pipe and the denitrification pipe, and the adjusting mechanism includes a mounting sleeve, an adjusting sleeve, a matching sleeve, a transmission rod, a connecting plate, a control sleeve, a through hole and a sealing sleeve. The mounting sleeve is connected to the top of the desulfurization pipe and the denitrification pipe, the adjusting sleeve is rotatably installed on the top of the mounting sleeve, the matching sleeve is connected to the inner side of the adjusting sleeve, the transmission rod is connected to the inner side of the matching sleeve, the connecting plate is fixed to the bottom end of the transmission rod, the control sleeve is installed on the top surface of the connecting plate, and multiple groups of through holes are provided and distributed on the outer wall of the control sleeve. The sealing sleeve is fixed to the inner wall of the mounting sleeve and is slidably connected to the control sleeve.

[0008] The present invention is further configured such that the housing is provided with observation windows, and a plurality of observation windows are provided, so that the operator can observe the internal conditions of the device in real time, thereby improving the visual monitoring capability of the equipment.

[0009] The present invention is further configured such that the top end of the regulating sleeve is rotatably connected with an external pipe, which is convenient for connection with external equipment and facilitates the injection of medicine and the adjustment of flow rate.

[0010] The present invention is further configured such that a mating block is provided on the inner side of the mating sleeve, and the mating blocks are provided in multiple groups. A spiral groove is provided on the outer wall of the transmission rod, and the spiral groove is slidably connected with the multiple groups of mating blocks, thereby ensuring the precise sliding of the mating blocks during the flow regulation process and improving the regulation accuracy.

[0011] The present invention is further configured such that the outer wall of the control sleeve is provided with a guide strip, and the inner wall of the envelope is provided with a guide groove. The guide strips and guide grooves are provided in multiple groups and are slidably connected, thereby ensuring that the envelope and the control sleeve maintain stability and smoothness during the adjustment process, thereby improving the fluency of the adjustment process.

[0012] The present invention is further configured such that a positioning mechanism is provided on the outside of the adjusting sleeve, and the positioning mechanism includes a positioning block, a positioning groove, a limiting sleeve, a connecting ring and a limiting mechanism. The positioning block is provided with multiple groups sliding on the outer wall of the adjusting sleeve, and the positioning groove is provided with multiple groups distributed on the outer wall of the mounting sleeve. The limiting sleeve slides on the outer wall of the mounting sleeve, and the connecting ring is fixed on the bottom surface of the limiting sleeve, which provides higher stability and precise positioning, and ensures the accuracy of the adjustment process.

[0013] The present invention is further configured such that the limiting mechanism includes a mounting block, an arcuate rod, a rotating sleeve, a limiting rod and a socket, the mounting block is provided with multiple groups distributed on the outer wall of the connecting ring, the arcuate rod is fixed on multiple groups of outer walls of the mounting block, the rotating sleeve rotates on the outer wall of the mounting sleeve, the limiting rod is provided with multiple groups distributed on the outer wall of the rotating sleeve, and the socket is provided with multiple groups distributed on multiple groups of outer walls of the limiting rod, so as to prevent the adjustment device from positional displacement during operation and ensure precise operation and stability.

[0014] The present invention is further configured such that the top ends of the multiple groups of positioning blocks are connected with reset springs, and the bottom ends of the multiple groups of reset springs are fixedly connected to the outer wall of the connecting ring, thereby ensuring the automatic reset of the positioning blocks during operation and improving the reliability and safety of the adjustment device.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a device for desulfurization and denitrification treatment and reuse of industrial furnace waste flue gas, which has the following beneficial effects:

[0017] 1. The industrial furnace is connected by a smoke inlet pipe. After the waste gas enters the outer shell, it is sprayed with limestone slurry and liquid nitrogen through multiple groups of nozzles, effectively removing sulfur dioxide and nitrogen oxides in the waste gas. This treatment method evenly distributes the limestone slurry and liquid nitrogen in the treatment area through the diversion pipe, ensuring the adequacy of the desulfurization and denitrification reactions. The arrangement of multiple groups of nozzles improves the dispersion effect of the reagents, effectively enhancing the desulfurization and denitrification efficiency, and can achieve relatively uniform spraying during the treatment process, avoiding resource waste caused by uneven or excessive injection of reagents, and improving the overall treatment efficiency and economy.

[0018] 2. The regulating mechanism adjusts the flow rate through the cooperation of the regulating sleeve and the matching sleeve, which can accurately control the injection amount of limestone slurry and liquid nitrogen to ensure the best effect of desulfurization and denitrification reactions. The regulating mechanism adopts the precise cooperation of the spiral groove and the matching block, combined with the sliding control sleeve design, so that the flow rate can be flexibly adjusted during operation to meet the requirements of the agent injection amount under different working conditions. This precise adjustment method not only improves the efficiency of exhaust gas treatment, but also reduces the consumption of chemical substances, which helps to achieve the goal of energy conservation and emission reduction. By adjusting the cooperation changes between the sleeve and the through hole, the precise adjustment of the agent flow rate is achieved, ensuring the controllability of various reactions in exhaust gas treatment.

[0019] 3. The positioning mechanism ensures the precise positioning and stability of the adjustment sleeve through components such as the positioning block, the limit sleeve and the return spring. During the adjustment process, the positioning mechanism provides a reliable limiting function, effectively preventing the adjustment sleeve from unnecessary movement or misoperation during operation, thereby ensuring the adjustment accuracy. At the same time, the positioning mechanism locks the adjustment sleeve through the cooperation of the limit rod and the jack, further improving the stability of the equipment and the safety of operation, avoiding equipment failures caused by misoperation or external interference, and ensuring long-term stable operation of the device. Overall, the design of the positioning mechanism effectively improves the accuracy and stability during the adjustment process, making the device highly adaptable and efficient in industrial applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a device for desulfurization, denitrification, treatment and reuse of waste flue gas from an industrial furnace in the present invention;

[0021] Figure 2 Schematic diagram of the cross-sectional structure of the housing in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the installation sleeve in the present invention;

[0023] Figure 4 Schematic diagram of the cross-sectional structure of the positioning mechanism in the present invention;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of the adjustment mechanism in the present invention.

[0025] In the figure: 1. Shell; 2. Smoke inlet pipe; 3. Smoke exhaust pipe; 4. Diverter pipe; 5. Nozzle; 6. Desulfurization pipe; 7. Denitrification pipe; 8. Mounting sleeve; 9. Adjusting sleeve; 10. Matching sleeve; 11. Transmission rod; 12. Connecting plate; 13. Control sleeve; 14. Through hole; 15. Envelope; 16. Observation window; 17. External pipe; 18. Matching block; 19. Spiral groove; 20. Guide strip; 21. Guide groove; 22. Positioning block; 23. Positioning groove; 24. Limiting sleeve; 25. Connecting ring; 26. Mounting block; 27. Arc rod; 28. Rotating sleeve; 29. Limiting rod; 30. Socket; 31. Return spring. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-Figure 5 A device for treating and recycling waste flue gas from an industrial furnace by desulfurization and denitrification comprises a shell 1, a treatment mechanism is arranged in the shell 1, the treatment mechanism comprises a smoke inlet pipe 2, a smoke exhaust pipe 3, a diversion pipe 4, a nozzle 5, a desulfurization pipe 6 and a denitrification pipe 7, the smoke inlet pipe 2 is connected to the outer wall of the shell 1, the smoke exhaust pipe 3 is connected to the top of the shell 1, the diversion pipe 4 is provided with multiple groups connected to the shell 1, the nozzle 5 is provided with multiple groups distributed on the outer walls of multiple groups of external pipes 17, the desulfurization pipe 6 and the denitrification pipe 7 are respectively connected to the outer ends of the multiple groups of diversion pipes 4, and the tops of the desulfurization pipe 6 and the denitrification pipe 7 are both provided with an adjustment mechanism, and the adjustment mechanism comprises The mounting sleeve 8, the adjusting sleeve 9, the matching sleeve 10, the transmission rod 11, the connecting plate 12, the control sleeve 13, the through hole 14 and the sealing sleeve 15. The mounting sleeve 8 is connected to the top of the desulfurization pipe 6 and the denitrification pipe 7. The adjusting sleeve 9 is rotatably installed on the top of the mounting sleeve 8. The matching sleeve 10 is connected to the inner side of the adjusting sleeve 9. The transmission rod 11 is connected to the inner side of the matching sleeve 10. The connecting plate 12 is fixed to the bottom end of the transmission rod 11. The control sleeve 13 is installed on the top surface of the connecting plate 12. There are multiple groups of through holes 14 distributed on the outer wall of the control sleeve 13. The sealing sleeve 15 is fixed to the inner wall of the mounting sleeve 8 and is slidably connected to the control sleeve 13.

[0030] The housing 1 is provided with observation windows 16, and there are multiple groups of observation windows 16, which are convenient for the operator to observe the internal operating status of the device from different angles in real time, thereby improving the visual monitoring capability of the equipment.

[0031] An external pipe 17 is provided at the top of the regulating sleeve 9 for rotational connection, so as to realize the import and export of fluid or signal, and facilitate fine control by rotating the regulating sleeve 9 .

[0032] A mating block 18 is provided on the inner side of the mating sleeve 10, and multiple groups of mating blocks 18 are provided. A spiral groove 19 is provided on the outer wall of the transmission rod 11. The spiral groove 19 is slidably connected with the multiple groups of mating blocks 18. The thrust is generated by the sliding of the mating block and the spiral groove, so that the transmission rod generates axial movement when it rotates, thereby realizing the precise adjustment function.

[0033] The outer wall of the control sleeve 13 is provided with a guide strip 20, and the inner wall of the envelope 15 is provided with a guide groove 21. The guide strips 20 and the guide grooves 21 are provided in multiple groups and are slidably connected to maintain stable linear motion between the control sleeve and the envelope to avoid deviation during operation.

[0034] A positioning mechanism is provided on the outside of the adjusting sleeve 9, and the positioning mechanism includes a positioning block 22, a positioning groove 23, a limiting sleeve 24, a connecting ring 25 and a limiting mechanism. The positioning block 22 is provided with multiple groups sliding on the outer wall of the adjusting sleeve 9, and the positioning groove 23 is provided with multiple groups distributed on the outer wall of the mounting sleeve 8. The limiting sleeve 24 slides on the outer wall of the mounting sleeve 8, and the connecting ring 25 is fixed on the bottom surface of the limiting sleeve 24. Multi-position locking is achieved through the cooperation of the positioning block and the positioning groove, and the cooperation between the limiting sleeve and the connecting ring enhances the positioning stability.

[0035] The limiting mechanism includes a mounting block 26, an arcuate rod 27, a rotating sleeve 28, a limiting rod 29 and a socket 30. The mounting block 26 is provided with multiple groups distributed on the outer wall of the connecting ring 25, the arcuate rod 27 is fixed on the outer wall of multiple groups of mounting blocks 26, the rotating sleeve 28 rotates on the outer wall of the mounting sleeve 8, the limiting rod 29 is provided with multiple groups distributed on the outer wall of the rotating sleeve 28, and the socket 30 is provided with multiple groups distributed on the outer wall of multiple groups of limiting rods 29. The limiting rod is driven to align with the socket by the rotating sleeve to achieve limitation, prevent position displacement during adjustment, and improve operation accuracy and safety.

[0036] The top ends of the multiple groups of positioning blocks 22 are connected to reset springs 31, and the bottom ends of the multiple groups of reset springs 31 are fixedly connected to the outer wall of the connecting ring 25. The reset springs enable the positioning blocks to automatically reset after leaving the positioning grooves, thereby improving the automation and reusability of the positioning mechanism.

[0037] In this embodiment, when in use, the external pipe 17 provided at one end of the desulfurization pipe 6 and the denitrification pipe 7 is connected to the external conveying pipe, the desulfurization pipe 6 is injected with limestone slurry through the conveying pipe, and the denitrification pipe 7 is injected with liquid nitrogen through the conveying pipe. The smoke inlet pipe 2 is connected to the external industrial furnace, and the exhaust gas is injected into the outer shell 1. The limestone slurry and liquid nitrogen are sprayed through multiple groups of nozzles 5 respectively. The limestone slurry and liquid nitrogen are used to remove sulfur dioxide and nitrogen oxides in the exhaust gas respectively. When it is necessary to adjust the injection amount of limestone slurry and liquid nitrogen, the rotating adjustment sleeve 9 drives the matching sleeve 10 to rotate, and the matching block 18 is driven by the matching sleeve 10 to engage with the spiral groove 19 for threaded engagement, thereby driving the transmission rod 11 to drive the control sleeve 13 to slide along the sleeve 15, thereby adjusting the sealing area of the sleeve 15 to the multiple groups of through holes 14, and changing the flow rate by changing the sealing area of the through holes 14.

[0038] More specifically, after the adjustment is completed, the limit sleeve 24 is pushed to abut against the top of the multiple groups of positioning blocks 22 so that the bottom end is engaged in the positioning groove 23, and the multiple groups of return springs 31 are squeezed, and then the rotating sleeve 28 is rotated to drive the multiple groups of limit rods 29 to rotate, so that the multiple groups of jacks 30 are plugged into the multiple groups of arc rods 27, and the limit sleeve 24 is locked. When unlocking is required, the rotating sleeve 28 is rotated to drive the multiple groups of limit rods 29 to move so that the jacks 30 are disengaged from the arc rods 27, and the limit on the limit sleeve 24 is released. The sliding limit sleeve 24 releases the contact with the multiple groups of positioning blocks 22, and the positioning block 22 is pulled by the multiple groups of return springs 31 so that the bottom end is disengaged from the positioning groove 23, thereby releasing the limit on the adjustment sleeve 9.

[0039] In summary, when the overall equipment is in use or running: when in use, the external pipe 17 set at one end of the desulfurization pipe 6 and the denitrification pipe 7 is connected to the external conveying pipe, the desulfurization pipe 6 is injected with limestone slurry through the conveying pipe, and the denitrification pipe 7 is injected with liquid nitrogen through the conveying pipe, the smoke inlet pipe 2 is connected to the external industrial furnace, and the waste flue gas is injected into the outer shell 1, and the limestone slurry and liquid nitrogen are sprayed through multiple groups of nozzles 5 respectively. The limestone slurry and liquid nitrogen are used to remove sulfur dioxide and nitrogen oxides in the exhaust gas respectively. When it is necessary to adjust the injection amount of limestone slurry and liquid nitrogen, the rotating adjustment sleeve 9 drives the matching sleeve 10 to rotate, and the matching block 18 is driven by the matching sleeve 10 to threadedly engage with the spiral groove 19, thereby driving the transmission rod 11 to drive the control sleeve 13 to slide along the sleeve 15, thereby adjusting the sealing area of the sleeve 15 to the multiple groups of through holes 14, and changing the flow rate by changing the sealing area of the through holes 14.

[0040] After the adjustment is completed, the limit sleeve 24 is pushed to abut against the top of the multiple groups of positioning blocks 22 so that the bottom end is engaged in the positioning groove 23, and the multiple groups of return springs 31 are squeezed, and then the rotating sleeve 28 is rotated to drive the multiple groups of limit rods 29 to rotate, so that the multiple groups of jacks 30 are plugged into the multiple groups of arc rods 27, and the limit sleeve 24 is locked. When it needs to be unlocked, the rotating sleeve 28 is rotated to drive the multiple groups of limit rods 29 to move so that the jacks 30 are disengaged from the arc rods 27, and the limit on the limit sleeve 24 is released. The sliding limit sleeve 24 releases the contact with the multiple groups of positioning blocks 22, and the positioning block 22 is pulled by the multiple groups of return springs 31 so that the bottom end is disengaged from the positioning groove 23, thereby releasing the limit on the adjustment sleeve 9.

[0041] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be described here one by one. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for treating and recycling industrial furnace waste flue gas for desulfurization and denitrification, comprising a housing (1), characterized in that: A processing mechanism is provided in the shell (1), and the processing mechanism includes a smoke inlet pipe (2), a smoke exhaust pipe (3), a diversion pipe (4), a nozzle (5), a desulfurization pipe (6) and a denitrification pipe (7). The smoke inlet pipe (2) is connected to the outer wall of the shell (1), the smoke exhaust pipe (3) is connected to the top of the shell (1), the diversion pipe (4) is provided with multiple groups connected to the shell (1), the nozzle (5) is provided with multiple groups distributed on the outer walls of multiple groups of external pipes (17), the desulfurization pipe (6) and the denitrification pipe (7) are respectively connected to the outer ends of the multiple groups of diversion pipes (4), and the tops of the desulfurization pipe (6) and the denitrification pipe (7) are both provided with an adjustment mechanism, and the adjustment mechanism includes a mounting sleeve (8), an adjustment sleeve (9), a matching sleeve (10), and a plurality of nozzles. The invention relates to a housing (10), a transmission rod (11), a connecting plate (12), a control housing (13), a through hole (14) and a sealing sleeve (15); the installation housing (8) is connected to the top of the desulfurization pipe (6) and the denitrification pipe (7); the adjustment housing (9) is rotatably installed on the top of the installation housing (8); the matching housing (10) is connected to the inner side of the adjustment housing (9); the transmission rod (11) is connected to the inner side of the matching housing (10); the connecting plate (12) is fixed to the bottom end of the transmission rod (11); the control housing (13) is installed on the top surface of the connecting plate (12); a plurality of through holes (14) are provided and distributed on the outer wall of the control housing (13); the sealing sleeve (15) is fixed to the inner wall of the installation housing (8) and is slidably connected to the control housing (13).

2. The desulfurization and denitrification treatment and recycling device for industrial furnace waste gas according to claim 1 is characterized in that: The housing (1) is provided with observation windows (16), and the observation windows (16) are provided in multiple groups.

3. The desulfurization and denitrification treatment and recycling device for industrial furnace waste gas according to claim 2, characterized in that: The top end of the adjusting sleeve (9) is rotatably connected to an external pipe (17).

4. The desulfurization and denitrification treatment and recycling device for industrial furnace waste gas according to claim 3 is characterized by: The inner side of the matching sleeve (10) is provided with a matching block (18), and the matching block (18) is provided in multiple groups. The outer wall of the transmission rod (11) is provided with a spiral groove (19), and the spiral groove (19) is slidably connected with the multiple groups of matching blocks (18).

5. The desulfurization and denitrification treatment and recycling device for industrial furnace waste gas according to claim 4 is characterized in that: The outer wall of the control sleeve (13) is provided with a guide strip (20), and the inner wall of the envelope (15) is provided with a guide groove (21). The guide strips (20) and the guide grooves (21) are both provided in multiple groups and are slidably connected.

6. The desulfurization and denitrification treatment and reuse device for industrial furnace waste gas according to claim 5, characterized in that: A positioning mechanism is provided on the outside of the adjusting sleeve (9), and the positioning mechanism comprises a positioning block (22), a positioning groove (23), a limiting sleeve (24), a connecting ring (25) and a limiting mechanism. The positioning block (22) is provided with multiple groups sliding on the outer wall of the adjusting sleeve (9), the positioning groove (23) is provided with multiple groups distributed on the outer wall of the mounting sleeve (8), the limiting sleeve (24) slides on the outer wall of the mounting sleeve (8), and the connecting ring (25) is fixed to the bottom surface of the limiting sleeve (24).

7. The device for treating and recycling industrial furnace waste gas for desulfurization and denitrification according to claim 6, characterized in that: The limiting mechanism comprises a mounting block (26), an arcuate rod (27), a rotating sleeve (28), a limiting rod (29) and a socket (30); the mounting block (26) is provided with multiple groups distributed on the outer wall of the connecting ring (25); the arcuate rod (27) is fixed on the multiple groups of outer walls of the mounting block (26); the rotating sleeve (28) rotates on the outer wall of the mounting sleeve (8); the limiting rod (29) is provided with multiple groups distributed on the outer wall of the rotating sleeve (28); and the socket (30) is provided with multiple groups distributed on the outer walls of the multiple groups of limiting rods (29).

8. The device for treating and recycling industrial furnace waste gas for desulfurization and denitrification according to claim 7, characterized in that: The top ends of the plurality of groups of positioning blocks (22) are all connected with a return spring (31), and the bottom ends of the plurality of groups of return springs (31) are all fixedly connected to the outer wall of the connecting ring (25).

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