Denitration process control system

Abstract

The invention discloses a denitration process control system which comprises a base, a flue gas treatment channel is fixed to the upper surface of the base, an exhaust pipe is fixed to the lower portion of the right side of the flue gas treatment channel, and a gas inlet pipe is fixed to the left side of the flue gas treatment channel; a water storage tank, a high-concentration urea solution storage tank and a temporary storage tank are mounted on the left side of the upper surface of the base, and a recovery storage tank is mounted on the right side of the upper surface of the base; and a transverse distribution pipe is arranged at the top of the inner wall of the flue gas treatment channel and communicates with the temporary storage tank through a communicating pipe, an electromagnetic valve is installed in the communicating pipe, and spray heads are installed at the bottom of the transverse distribution pipe at equal intervals. According to the denitration process control system, the multiple nozzles at the bottom of the transverse distribution pipe are utilized, smoke can be fully sprayed, the spraying effect is guaranteed, the spraying frequency is selected according to the nitric oxide concentration of the smoke, excessive use of a urea solution is reduced, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas treatment, in particular to a denitration process control system. Background Art

[0002] The high-temperature flue gas generated in industrial production contains a large amount of nitrogen oxides, and nitrogen oxides NOX are one of the important sources of atmospheric pollution, so the flue gas after combustion must be denitrated. At present, the SNCR process is commonly used in the denitration system of kilns in the fiberglass industry. SNCR denitration technology is the Selective Non-Catalytic Reduction (hereinafter referred to as SNCR) technology. It is a clean denitration technology that does not use a catalyst and sprays an amino-containing reducing agent (such as ammonia water, urea solution, etc.) into the furnace within a temperature range of 850 to 1100°C to reduce and remove NOx in the flue gas to generate nitrogen and water. This technology is mature and reliable. SNCR will not produce SO2 / SO3 conversion rate problems similar to the SCR process, and will not cause corrosion and blockage risks to subsequent equipment. The effective utilization rate of the reducing agent is high, the system operation is stable, the equipment is modular, it occupies a small area, there are no by-products, and there is no secondary pollution;

[0003] Defect 1: In the prior art, flue gas is mostly introduced into the denitration reaction device through a pipeline, and then discharged through a pipe opening, which causes the flue gas to be too concentrated when input into the denitration reaction device, and the contact area between the flue gas and the catalyst plate is relatively limited, and the flue gas cannot fully contact with the catalyst plate, affecting the working efficiency of the denitration reaction device;

[0004] In order to solve the above-mentioned defect one, the prior art one (application number: 202222906737.2, Chinese patent with application date of 2022-11-01) discloses a flue gas denitrification device, a flue gas ejection mechanism and a denitrification mechanism in a denitrification reaction cylinder, the flue gas ejection mechanism includes a plurality of nozzles with openings facing upward and arranged at intervals in the same horizontal plane, which are used to eject the flue gas to be treated upward in a uniform and dispersed manner, and the denitrification mechanism is arranged above the flue gas ejection mechanism. The contact area between the denitrification mechanism and the ejected dispersed flue gas to be treated is large, and the denitrification mechanism can be more fully in contact with the denitrification mechanism, thereby increasing the working efficiency of the flue gas denitrification device;

[0005] Defect 2: However, in the prior art, there is a problem of insufficient contact between the absorption liquid and the flue gas through simple spraying, which can easily lead to poor flue gas treatment effect or excessive absorption liquid consumption;

[0006] In order to solve the above-mentioned defect 2, the second prior art (application number 201910973482.1, Chinese patent application date 2019-10-14) discloses a sintering flue gas desulfurization and denitrification device, which filters the flue gas by setting an inclined plate filter assembly, and uses the filter inclined plate as a carrier of the absorption liquid, which can greatly improve the contact probability and contact time between the flue gas and the absorption liquid, and ensure that the absorption liquid fully absorbs the sulfur-containing substances in the flue gas, thereby improving the desulfurization effect; wherein, a number of absorption liquid runoffs are formed on the filter inclined plate through the liquid guide groove, so that the filter inclined plate body is full of absorption liquid; the flue gas flows from bottom to top, part of the flue gas passes through the filter inclined plate in turn, and the other part of the flue gas passes through a number of filter inclined plates. The zigzag channel formed in the middle flows upward; the absorption liquid dripped from the desulfurization spray head flows downward along the zigzag channel on each filter inclined plate due to the diversion effect of the filter inclined plate, and fully contacts with the zigzag rising flue gas, which greatly improves the contact probability and contact time between the flue gas and the absorption liquid, can improve the desulfurization effect of the absorption liquid, can also improve the utilization rate of the absorption liquid, and reduce the consumption of the absorption liquid; by setting up an air distribution component, two air flows in the vertical upward and lateral directions are introduced to form a spiral rising flue gas airflow in the desulfurization tower body, which can greatly improve the probability and intensity of collision and contact between the flue gas and the falling absorption liquid during the rising process, and improve the absorption effect of the absorption liquid on sulfur-containing substances in the flue gas;

[0007] However, the above technology has the following defects: (1) The urea solution spray gun is unreasonable and can only partially cover the flue gas, resulting in insufficient flue gas treatment; (2) The nitrogen oxide emission values ​​fluctuate greatly, and in order to ensure that the nitrogen oxide emissions meet the standards, the urea solution concentration is often adjusted excessively and frequently, resulting in a waste of urea materials and labor.

[0008] Therefore, we proposed a denitrification process control system to solve the above problems. Summary of the invention

[0009] The object of the present invention is to provide a denitrification process control system to solve the problem that the urea solution spray gun proposed in the above-mentioned background technology is unreasonable and can only partially cover the flue gas, resulting in insufficient flue gas treatment and large fluctuations in nitrogen oxide emission values. In order to ensure that nitrogen oxides are discharged in compliance with standards, the concentration of urea solution is often adjusted excessively and frequently, resulting in waste of urea materials and labor.

[0010] To achieve the above object, the present invention provides the following technical solution: a denitration process control system, comprising a base, a flue gas treatment channel is fixed on the upper surface of the base, an exhaust pipe is fixed below the right side of the flue gas treatment channel, and an air intake pipe is fixed on the left side of the flue gas treatment channel;

[0011] A water storage tank, a high-concentration urea solution storage tank and a temporary storage tank are respectively installed on the left side of the upper surface of the base, and a recovery storage tank is installed on the right side of the upper surface of the base;

[0012] A transverse distribution pipe is arranged on the top of the inner wall of the flue gas treatment channel, and the transverse distribution pipe is connected to the temporary storage tank through a connecting pipe, a solenoid valve is installed inside the connecting pipe, and nozzles are installed at equal intervals at the bottom of the transverse distribution pipe;

[0013] The liquid inlet of the recovery tank is connected to the bottom of the flue gas treatment channel through a sewage pipe, and the liquid outlet of the recovery tank is connected to the temporary storage tank through a recovery pump, and the liquid outlets of the water storage tank and the high-concentration urea solution storage tank are connected to the temporary storage tank through a metering pump respectively;

[0014] A urea concentration detector is arranged on the right side of the temporary storage tank, and the liquid outlet of the temporary storage tank is connected with the transverse distribution pipe through another metering pump.

[0015] Preferably, a rotatable stirring rod is provided inside the temporary storage tank, a slope inclined downward along the direction of the flue gas is provided at the bottom of the flue gas treatment channel, and a collecting trough is provided at the bottom end of the slope inside the flue gas treatment channel.

[0016] Preferably, the left side of the flue gas treatment channel is fixedly connected to an air intake pipe, and a sleeve is sleeved on the outer side of the air intake pipe, a shaft is rotatably connected to the middle position inside the air intake pipe, and a turbine is fixed on the outer side of the left end of the shaft, a driven gear is fixed on the outer side of the left end of the transverse distribution pipe, and a driving half gear is fixed on the outer side of the right end of the shaft.

[0017] Preferably, a torsion spring is installed at the connection position between the outer side of the left end of the transverse distribution pipe and the flue gas treatment channel.

[0018] Preferably, the driving half gears are meshingly connected with each other, and the transverse distribution pipe forms a back-and-forth reciprocating swinging structure through the driven gear, the driving half gear and the torsion spring.

[0019] Preferably, spoilers are fixed at equal intervals inside the flue gas treatment channel below the transverse distribution pipe, and the spoilers are arranged at an angle.

[0020] Preferably, a cavity is opened inside the sleeve, and a water storage bin is fixed inside the cavity, a connecting pipe is opened and fixed at an equal angle on the right side of the water storage bin, a drainage pipe is opened and fixed at the bottom of the water storage bin, a heat inlet is opened at an equal angle between the cavity and the air inlet pipe, and a sealing block is arranged inside the heat inlet, a box body is fixed at an equal angle on one side of the heat inlet inside the sleeve, and a piston block is sealingly and slidably connected inside the box body, and a movable plate is connected at an equal angle to the inside of the cavity.

[0021] Preferably, the blocking block is sealed and slidably connected to the heat inlet, the two ends of the movable plate are fixedly connected to the sides of the blocking block and the piston block respectively, and the movable plate is slidably connected to the piston block and the sleeve.

[0022] Preferably, the bottoms of the plurality of box bodies extend into the interior of the air inlet pipe, and hydraulic oil is stored below the interior of the box body.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the denitration process control system adopts a new structural design, and its specific contents are as follows:

[0024] (1) The flue gas treatment channel is distributed transversely, and a plurality of spraying components are arranged in the flue gas treatment channel along the direction of the flue gas. When the flue gas passes through the flue gas treatment channel transversely, the plurality of spraying components spray the urea solution, so that the urea solution can fully contact with the flue gas, thereby improving the spraying efficiency of the urea solution and ensuring that the urea solution can fully contact with the flue gas;

[0025] (2) The operation of the spray assembly can be controlled by an automatic control system and a program. When the nitrogen oxide concentration of the flue gas is too high, the spray assembly will spray the urea solution in its entirety. When the nitrogen oxide concentration of the flue gas is not high, the spray assembly can spray the urea solution intermittently, thereby avoiding excessive use of the urea solution, reducing the cost of the urea solution, and improving efficiency.

[0026] (3) The liquid outlets of the high-concentration urea solution storage tank and the water storage tank are connected to the temporary storage tank through metering pumps, respectively. Urea solutions of different concentrations can be prepared in advance according to the concentration of nitrogen oxides in the flue gas and stored in the temporary storage tank, so as to avoid excessive concentration of urea solution, resulting in waste of urea solution and reduce costs;

[0027] (4) A collecting tank is provided at the bottom of the slope, and the bottom of the collecting tank is connected to a recovery tank through a pipeline. The liquid outlet of the recovery tank is connected to the temporary storage tank through a recovery pump. With the help of the slope, the urea solution after the reaction can be collected and put into the temporary storage tank again, and then the urea solution is re-prepared through the high-concentration urea solution storage tank and the water storage tank for flue gas spraying, thereby reducing energy consumption;

[0028] (5) The potential energy of flue gas flow is used to drive the turbine to rotate, so that the driving half gear intermittently drives the meshing driven gear to rotate. At this time, the transverse distribution pipe swings forward, and when the driving half gear is not meshed with the driven gear, the transverse distribution pipe swings backward under the stored force of the torsion spring. The above operation is repeated, so that the transverse distribution pipe swings back and forth, thereby increasing the spraying range of the nozzle and improving work efficiency;

[0029] Furthermore, the high temperature of the flue gas can be used to heat the hydraulic oil in the box body, so that the piston block is pushed, and the movable plate is used to drive the sealing block to move, so that the heat inlet is opened, allowing part of the high-temperature flue gas to enter the cavity and heat the water inside the water storage tank, thereby recovering and reusing the waste heat in the high-temperature flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main cross-sectional structure of the flue gas treatment channel of the present invention;

[0031] Figure 2 This is a control diagram of the denitration system of the present invention;

[0032] Figure 3 It is a schematic diagram of the main cross-sectional structure of the air intake pipe and sleeve of the present invention;

[0033] Figure 4 It is a schematic diagram of the side section structure of the sleeve of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the transverse distribution pipe, the driving half gear and the driven gear of the present invention;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the recovery storage tank of the present invention;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the blocking block and the movable block of the present invention;

[0037] Figure 8 This is a schematic diagram of the three-dimensional structure of the flue gas treatment channel of the present invention;

[0038] Fig. 9 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0039] Fig.10 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0040] In the figure: 1. base; 2. flue gas treatment channel; 3. exhaust pipe; 4. nozzle; 5. connecting pipe; 6. solenoid valve; 7. transverse distribution pipe; 8. high concentration urea solution storage tank; 9. water storage tank; 10. metering pump; 11. temporary storage tank; 12. recovery storage tank; 13. urea concentration detector; 14. sleeve; 15. spoiler; 16. intake pipe; 17. driven gear; 18. driving half gear; 19. torsion spring; 20. shaft; 21. turbine; 22. cavity; 23. water storage tank; 24. connecting pipe; 25. drain pipe; 26. blocking block; 27. heat inlet; 28. box body; 29. ​​piston block; 30. movable plate; 31. sewage pipe. DETAILED DESCRIPTION

[0041] The following will be combined with 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: a denitration process control system;

[0043] Embodiment 1: In order to solve the problem that the urea solution spray gun in the prior art is unreasonable and can only partially cover the flue gas, resulting in insufficient flue gas treatment and large fluctuations in the emission value of nitrogen oxides, and in order to ensure that the emission of nitrogen oxides meets the standards, the concentration of urea solution is often adjusted excessively and frequently, resulting in waste of urea materials and labor, the following scheme is disclosed, and specific reference is made to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, it includes a base 1, a flue gas treatment channel 2 is fixed on the upper surface of the base 1, an exhaust pipe 3 is fixed below the right side of the flue gas treatment channel 2, and an air intake pipe 16 is fixed on the left side of the flue gas treatment channel 2;

[0044] A water storage tank 9, a high-concentration urea solution storage tank 8 and a temporary storage tank 11 are installed on the left side of the upper surface of the base 1, and a recovery storage tank 12 is installed on the right side of the upper surface of the base 1; a transverse distribution pipe 7 is arranged on the top of the inner wall of the flue gas treatment channel 2, and the transverse distribution pipe 7 is connected to the temporary storage tank 11 through a connecting pipe 5, and a solenoid valve 6 is installed inside the connecting pipe 5, and nozzles 4 are installed at equal intervals at the bottom of the transverse distribution pipe 7; the liquid inlet of the recovery storage tank 12 is connected to the bottom of the flue gas treatment channel 2 through a sewage pipe 31, and the liquid outlet of the recovery storage tank 12 is connected to the temporary storage tank 11 through a recovery pump, and the water storage The liquid outlets of the tank 9 and the high-concentration urea solution storage tank 8 are respectively connected to the temporary storage tank 11 through a metering pump 10; a urea concentration detector 13 is arranged on the right side of the temporary storage tank 11, and the liquid outlet of the temporary storage tank 11 is connected to the transverse distribution pipe 7 through another metering pump 10, and a rotatable stirring rod is arranged inside the temporary storage tank 11, and a slope inclined downward along the direction of the flue gas is arranged at the bottom of the flue gas treatment channel 2, and a collecting tank is arranged at the bottom end of the slope inside the flue gas treatment channel 2, and spoilers 15 are fixed at equal intervals below the transverse distribution pipe 7 inside the flue gas treatment channel 2, and the spoilers 15 are arranged obliquely;

[0045] The flue gas enters the flue gas treatment channel 2 through the air intake pipe 16, and the nitrogen oxide concentration of the flue gas is detected by the nitrogen oxide concentration detector to determine the NOX concentration value p of the flue gas at the front end of the flue gas treatment channel 2. The automatic control system selects urea solutions of different concentrations according to the nitrogen oxide concentration. Each spray component starts to spray urea solution according to the automatic control program setting. When p≥p0, all spray components spray urea solution at the same time. When p<p0, the spray component sprays urea solution intermittently, where p0 is the preset NOX concentration value. Then, the flue gas sprayed with urea solution meets the standard and is discharged to the next process for further treatment. The setting value of p0 is 1000-2000mg / m3. Furthermore, when p<p0, the spraying frequency of each spraying component is 5-8 times per hour, and the spraying time of each spraying component is 5-8 minutes. When p≥p0, the spraying urea solution concentration of all spraying components is 40%. When p<p0, the spraying urea solution concentration of all spraying components is 30%. Then, the multiple nozzles 4 on the transverse distribution pipe 7 are used to spray the urea solution, so that the urea solution can fully contact with the flue gas, thereby improving the spraying efficiency of the urea solution, thereby ensuring that the urea solution can fully contact with the flue gas. At the same time, the spraying components can be controlled by the automatic control system and the program. When the nitrogen oxide concentration of the flue gas is too high, all the spray components spray urea solution. When the nitrogen oxide concentration of the flue gas is not high, the spray components can spray urea solution intermittently, thereby avoiding excessive use of urea solution, reducing the cost of urea solution, and improving efficiency. Then, the liquid outlets of the high-concentration urea solution storage tank 8 and the water storage tank 9 are connected to the temporary storage tank 11 through the metering pump 10 respectively. According to the nitrogen oxide concentration of the flue gas, urea solutions of different concentrations can be prepared in advance and stored in the temporary storage tank 11, thereby avoiding excessive concentration of urea solution, resulting in waste of urea solution, and reducing costs. In addition, since a sink is provided at the bottom of the slope, The collecting tank has a bottom which is connected to a recovery tank 12 through a sewage pipe 31. The liquid outlet of the recovery tank 12 is connected to the temporary tank 11 through a recovery pump. With the help of the slope, the urea solution after the reaction can be collected again into the temporary tank 11, and then the urea solution is redistributed through the high-concentration urea solution tank 8 and the water tank 9 for flue gas spraying, thereby reducing energy consumption. At the same time, the plurality of spoilers 15 can be used to slow down the flow rate of the high-temperature flue gas, thereby increasing the contact time and probability between the flue gas and the urea solution, and improving the denitrification effect. Finally, the denitrified flue gas is discharged from the exhaust pipe 3.

[0046] Embodiment 2: Different from Embodiment 1, this embodiment utilizes the lateral distribution pipe 7 to swing back and forth, which can increase the spray range of the nozzle 4 and improve the working efficiency. Figure 1 , Figure 5 and Fig. 9As shown, the left side of the flue gas treatment channel 2 is fixedly connected with an intake pipe 16, and the outer side of the intake pipe 16 is sleeved with a sleeve 14, the middle position inside the intake pipe 16 is rotatably connected with a shaft rod 20, and the outer side of the left end of the shaft rod 20 is sleeved with a turbine 21, the outer side of the left end of the transverse distribution pipe 7 is sleeved with a driven gear 17, and the outer side of the right end of the shaft rod 20 is sleeved with a driving half gear 18, and a torsion spring 19 is installed at the connection position between the outer side of the left end of the transverse distribution pipe 7 and the flue gas treatment channel 2, and the driving half gear 18 is meshed with the driving half gear 18. The transverse distribution pipe 7 forms a forward and backward reciprocating swing structure through the driven gear 17, the driving half gear 18 and the torsion spring 19;

[0047] When the high-temperature flue gas enters the flue gas treatment channel 2 from the air intake pipe 16, the potential energy of the flue gas flow is used to drive the turbine 21 to rotate, so that the shaft 20 drives the driving half gear 18 to rotate, and at the same time, the driving half gear 18 intermittently drives the meshing driven gear 17 to rotate. At this time, the transverse distribution pipe 7 swings forward, and when the driving half gear 18 is not meshed with the driven gear 17, the transverse distribution pipe 7 swings backward under the stored force of the torsion spring 19, and the above operation is repeated, so that the transverse distribution pipe 7 swings back and forth, thereby increasing the spraying range of the nozzle 4 and improving work efficiency.

[0048] Embodiment 3: Different from Embodiment 2, this embodiment utilizes the waste heat of high-temperature flue gas to heat the water in the water storage tank 23, thereby recovering and reusing the waste heat in the high-temperature flue gas. Figure 1 , Figure 3 , Figure 4 , Figure 7 ,and Fig.10 As shown, a cavity 22 is provided inside the sleeve 14, and a water storage bin 23 is fixed inside the cavity 22, a connecting pipe 24 is provided and fixed at an equal angle on the right side of the water storage bin 23, a drain pipe 25 is provided and fixed at the bottom of the water storage bin 23, a heat inlet 27 is provided at an equal angle between the cavity 22 and the air inlet pipe 16, and a blocking block 26 is provided inside the heat inlet 27, a box body 28 is fixed at an equal angle on one side of the heat inlet 27 inside the sleeve 14, the bottoms of the multiple box bodies 28 all extend into the air inlet pipe 16, and hydraulic oil is stored below the box bodies 28, and a piston block 29 is sealingly and slidably connected inside the box bodies 28, a movable plate 30 is connected at an equal angle inside the cavity 22, the blocking block 26 and the heat inlet 27 are sealed and slidably connected, the two ends of the movable plate 30 are fixedly connected to the sides of the blocking block 26 and the piston block 29 respectively, and the movable plate 30 is slidably connected to the piston block 29 and the sleeve 14;

[0049] By utilizing the heat of the high-temperature flue gas, the hydraulic oil inside the box body 28 can be heated, so that high pressure is generated inside the box body 28, which then pushes the piston block 29 to move, and utilizes the movable plate 30 to drive the blocking block 26 to move, so that the blocking block 26 no longer blocks the heat inlet 27, so that the heat inlet 27 is opened, allowing part of the high-temperature flue gas to enter the cavity 22 and heat the water inside the water storage tank 23, so that the waste heat in the high-temperature flue gas can be recovered and reused, and then the heated water inside the water storage tank 23 can be discharged from the drain pipe 25.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A denitration process control system, comprising a base (1), a flue gas treatment channel (2) being fixed on the upper surface of the base (1), an exhaust pipe (3) being fixedly provided below the right side of the flue gas treatment channel (2), and an air intake pipe (16) being fixedly provided on the left side of the flue gas treatment channel (2); Features: A water storage tank (9), a high-concentration urea solution storage tank (8) and a temporary storage tank (11) are respectively installed on the left side of the upper surface of the base (1), and a recovery storage tank (12) is installed on the right side of the upper surface of the base (1); A transverse distribution pipe (7) is arranged at the top of the inner wall of the flue gas treatment channel (2), and the transverse distribution pipe (7) is connected to the temporary storage tank (11) through a connecting pipe (5), a solenoid valve (6) is installed inside the connecting pipe (5), and nozzles (4) are installed at equal intervals at the bottom of the transverse distribution pipe (7); The liquid inlet of the recovery tank (12) is connected to the bottom of the flue gas treatment channel (2) via a sewage pipe (31), and the liquid outlet of the recovery tank (12) is connected to the temporary storage tank (11) via a recovery pump, and the liquid outlets of the water storage tank (9) and the high-concentration urea solution storage tank (8) are connected to the temporary storage tank (11) via a metering pump (10); A urea concentration detector (13) is provided on the right side of the temporary storage tank (11), and the liquid outlet of the temporary storage tank (11) is connected to the transverse distribution pipe (7) via another metering pump (10).

2. A denitration process control system according to claim 1, characterized in that: A rotatable stirring rod is arranged inside the temporary storage tank (11), a slope inclined downward along the direction of the smoke is arranged at the bottom of the smoke treatment channel (2), and a collecting trough is arranged at the bottom end of the slope inside the smoke treatment channel (2).

3. A denitration process control system according to claim 1, characterized in that: The left side of the flue gas treatment channel (2) is fixedly connected to an air intake pipe (16), and the outer side of the air intake pipe (16) is sleeved with a sleeve (14), the middle position inside the air intake pipe (16) is rotatably connected to a shaft (20), and the outer side of the left end of the shaft (20) is sleeved with a turbine (21), the outer side of the left end of the transverse distribution pipe (7) is sleeved with a driven gear (17), and the outer side of the right end of the shaft (20) is sleeved with a driving half gear (18).

4. A denitration process control system according to claim 1, characterized in that: A torsion spring (19) is installed at the connection position between the outer side of the left end of the transverse distribution pipe (7) and the smoke treatment channel (2).

5. A denitration process control system according to claim 3, characterized in that: The driving half gears (18) are meshedly connected with each other, and the transverse distribution pipe (7) forms a forward and backward reciprocating swinging structure through the driven gear (17), the driving half gear (18) and the torsion spring (19).

6. A denitration process control system according to claim 1, characterized in that: Inside the flue gas treatment channel (2), spoilers (15) are fixed at equal intervals below the transverse distribution pipe (7), and the spoilers (15) are arranged in an inclined manner.

7. A denitration process control system according to claim 3, characterized in that: The sleeve (14) has a cavity (22) formed inside, and a water storage bin (23) is fixed inside the cavity (22); a connecting pipe (24) is formed and fixed at an equal angle on the right side of the water storage bin (23); a drainage pipe (25) is formed and fixed at the bottom of the water storage bin (23); a heat inlet (27) is formed at an equal angle between the cavity (22) and the air inlet pipe (16), and a sealing block (26) is provided inside the heat inlet (27); a box body (28) is fixed at an equal angle on one side of the heat inlet (27) inside the sleeve (14), and a piston block (29) is sealingly and slidably connected inside the box body (28); and a movable plate (30) is connected at an equal angle inside the cavity (22).

8. A denitration process control system according to claim 7, characterized in that: The sealing block (26) and the heat inlet (27) are in sealed sliding connection, the two ends of the movable plate (30) are respectively fixedly connected to the sealing block (26) and the side of the piston block (29), and the movable plate (30) is in sliding connection with the piston block (29) and the sleeve (14).

9. A denitration process control system according to claim 7, characterized in that: The bottoms of the plurality of box bodies (28) extend into the interior of the air inlet pipe (16), and hydraulic oil is stored below the interior of the box bodies (28).

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