Jet device for flue gas purification material and flue gas purification system

Abstract

The utility model discloses an injection device for a flue gas purification material and a flue gas purification system, and relates to the field of flue gas purification. According to the spraying device, the environment temperature at the position of the spraying head can be obtained through the temperature measuring assembly, so that whether the temperature of the current spraying area reaches a proper reaction temperature interval or not is judged, the spraying gun is rotated through the driving assembly, the spraying head is aligned with the optimal reaction temperature area, and therefore the reaction efficiency of the spraying area of the spraying gun is improved; the problem that emission of pollutants such as NOX, NH3 and SO2 in an existing incinerator exceeds the standard is solved, the phenomenon that materials are excessively sprayed can be reduced, and the flue gas purification cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of flue gas purification, and in particular to an injection device for flue gas purification materials and a flue gas purification system. Background Art

[0002] Waste incinerators produce NO X Flue gas containing pollutants such as NH3 and SO2 needs to be purified by flue gas purification materials before being discharged into the atmosphere. Usually, the materials are sprayed into the incinerator using a spray device installed in the flue gas environment to react with the pollutants in the flue gas. However, the temperature of each area in the incinerator is different, and it is impossible to determine whether the temperature of the current spraying area has reached the appropriate reaction temperature range. In order to reduce the pollutant index, excessive material spraying is often used, resulting in serious material waste. Summary of the invention

[0003] The main technical problem solved by the present application is to provide an injection device for flue gas purification materials and a flue gas purification system, which can reduce the flue gas purification efficiency and reduce material waste.

[0004] In order to solve the above problems, a technical solution adopted in the present application is to provide an injection device for flue gas purification material, comprising:

[0005] A spray gun, comprising a feed inlet, a gun barrel and a spray head, wherein the feed inlet and the spray head are respectively located at two ends of the gun barrel, and the central axis of the spray head is an arc;

[0006] A temperature measuring component, arranged on one side of the spray gun, for measuring the ambient temperature at the position of the spray head;

[0007] The driving assembly is arranged at the other side of the spray gun and is used to drive the spray gun to rotate so that the spray head sprays the material to the optimal reaction temperature area.

[0008] Wherein, the spray device also includes a mounting plate, the mounting plate has a plurality of mounting holes, the spray gun is movably arranged in one of the mounting holes, and the temperature measuring component is fixedly arranged in another mounting hole.

[0009] Wherein, the temperature measuring component includes a first connecting ring and a temperature measuring piece, the first connecting ring is fixed to the side of the mounting plate away from the nozzle, the temperature measuring piece is fixedly penetrated through the first connecting ring, and the temperature measuring end of the temperature measuring piece is close to the nozzle.

[0010] Wherein, the driving assembly includes a connecting plate, a driving motor, a driving wheel, a transmission member and a driven wheel, the connecting plate is fixedly connected to the side of the mounting plate away from the nozzle, the driving motor is fixedly connected to the connecting plate, the output end of the driving motor is connected to the driving wheel, the transmission member connects the driving wheel and the driven wheel, and the driven wheel is fixedly sleeved on the gun barrel.

[0011] Wherein, the transmission member is a conveyor belt or a chain, the connecting plate passes through the circle formed by the transmission member and is fixedly connected to the mounting plate, and there is no contact between the connecting plate and the driving wheel, the transmission member and the driven wheel.

[0012] Wherein, the spray device also includes a cooling component, which is inserted into the mounting hole together with the spray gun, and the cooling component is fixedly connected to the mounting plate, and the gun barrel is movably inserted into the cooling component.

[0013] Wherein, the cooling assembly includes a second connecting ring and a cooling sleeve, the second connecting ring is fixed to the side of the mounting plate away from the nozzle, the cooling sleeve is fixedly penetrated through the second connecting ring, and the gun barrel is movably penetrated through the cooling sleeve.

[0014] The cooling jacket has a hollow structure, and an air inlet and an air outlet are arranged on the outer surface.

[0015] Wherein, the air outlet is arranged at a position close to the nozzle.

[0016] To solve the above-mentioned problem, another technical solution adopted in the present application is to provide a flue gas purification system, comprising: a plurality of injection devices, feeding devices and processors as described in the above-mentioned technical solutions; wherein, the plurality of injection devices are installed in the same flue gas environment, and the feeding device is connected to the feed port of each of the injection devices, so as to transfer the material to the spray gun; the processor is coupled to the temperature measuring component and the driving component, and is used to adjust the rotation parameters of the driving component according to the ambient temperature feedback from the temperature measuring component, so that the nozzle rotates to face the adjacent area with the optimal reaction temperature.

[0017] The beneficial effects of the present application are as follows: the spraying device for flue gas purification materials provided by the present application can obtain the ambient temperature at the nozzle position by using the temperature measuring component, so as to judge whether the temperature of the current spraying area reaches the appropriate reaction temperature range, and then use the driving component to rotate the spray gun to align the spray head with the optimal reaction temperature area, thereby improving the reaction efficiency of the spray gun spray area and solving the current NO in the incinerator. X It can also solve the problem of excessive emissions of pollutants such as NH3 and SO2, reduce the phenomenon of excessive injection of materials, and reduce the cost of flue gas purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 This is a structural schematic diagram of an embodiment of an injection device for flue gas purification material of the present application;

[0020] Figure 2 This is a schematic structural diagram of an implementation scheme of a flue gas purification system of the present application;

[0021] Figure 3 A schematic diagram showing a top view of the installation disk;

[0022] Figure 4 A schematic diagram of a drive assembly from a top view. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] See also Figure 1 , Figure 1 This is a structural schematic diagram of an embodiment of the spraying device for flue gas purification materials of the present application. The spraying device 100 includes a spray gun 11, a temperature measuring component 12, and a driving component 13. Among them, the spray gun 11 includes a feed port 111, a gun barrel 112, and a nozzle 113. The feed port 111 and the nozzle 113 are respectively located at both ends of the gun barrel 112, and the central axis of the nozzle 113 is an arc. In other words, the nozzle 113 is in the shape of a curved tube, and when the material reaches the nozzle 113 through the gun barrel 112, the direction of movement will change and then be sprayed out.

[0025] The temperature measuring component 12 is arranged on one side of the spray gun 11 to measure the ambient temperature at the position of the spray head 113. The driving component 13 is arranged on the other side of the spray gun 11 to drive the spray gun 11 to rotate so that the spray head 113 sprays the material to the optimal reaction temperature area.

[0026] The spraying device for flue gas purification materials provided in the present application can use the temperature measuring component to obtain the ambient temperature at the nozzle position, so as to judge whether the temperature of the current spraying area has reached the appropriate reaction temperature range, and then use the driving component to rotate the spray gun to align the nozzle with the optimal reaction temperature area, thereby improving the reaction efficiency of the spray gun spray area and solving the current NO in the incinerator. X It can also solve the problem of excessive emissions of pollutants such as NH3 and SO2, reduce the phenomenon of excessive injection of materials, and reduce the cost of flue gas purification.

[0027] In some application scenarios, it is necessary to install multiple injection devices in the flue gas environment of the incinerator to evenly purify the flue gas environment and improve the efficiency and effect of flue gas purification. However, the temperature in the flue gas environment is uneven, and the temperatures at various locations are likely to vary greatly. Some may be within the appropriate reaction temperature range, while others may exceed the appropriate reaction temperature range. In another embodiment of this application, please combine Figure 1 See also Figure 2 , Figure 2 1 is a schematic diagram of the structure of an embodiment of a flue gas purification system of the present application, the flue gas purification system comprises: a plurality of injection devices 100, a feeding device 200 and a processor 300. The plurality of injection devices 100 are the injection devices described in the above embodiment. Figure 2 9 are schematically shown in the figure and are installed in the same flue gas environment. The feeding device 200 is connected to the feed port 111 of each injection device 100 to transfer the material to the spray gun 11. The processor 300 is coupled to the temperature measuring component 12 and the driving component 13 of each injection device 100. The processor 300 is used to adjust the rotation parameters of the driving component 13 according to the ambient temperature feedback from the temperature measuring component 12, so that the nozzle 113 of the spray gun 11 rotates to face the adjacent optimal reaction temperature area.

[0028] The temperature measured by a certain spraying device 100 is the ambient temperature of its own spray head 113. After the processor 300 collects the temperature data fed back by all the spraying devices 100, it can determine which spray heads 113 are in the appropriate reaction temperature range according to the pre-set standard, and then control the spray guns 11 adjacent to these spray heads 113 to rotate so that the adjacent spray heads 113 spray materials toward the area in the appropriate reaction temperature range. Figure 2When the ambient temperature fed back by the injection devices 100A, 100D, 100E, and 100F is in a suitable reaction temperature range, the processor 300 controls the nozzles 113 of the injection devices 100B and 100D adjacent to the injection device 100A to rotate toward 100A, controls the nozzles 113 of the injection devices 100A, 100E, and 100G adjacent to the injection device 100D to rotate toward 100D, controls the nozzles 113 of the injection devices 100H and 100F adjacent to the injection device 100E to rotate toward 100E, and controls the nozzles 113 of the injection devices 100C and 100J adjacent to the injection device 100F to rotate toward 100F, thereby improving the reaction efficiency of the injection area, improving the efficiency and effect of flue gas purification, and at the same time reducing the phenomenon of excessive injection of materials and reducing the cost of flue gas purification.

[0029] Further, in the above embodiments, please combine Figure 1 See also Figure 3 , Figure 3 It is a schematic diagram of a top view of the mounting plate, the spray device 100 also includes a mounting plate 14, the mounting plate 14 has a plurality of mounting holes, the spray gun 11 is movably arranged in one of the mounting holes, preferably the mounting hole M at the center to improve the stability of the structure, and the temperature measuring component 12 is fixedly arranged in another mounting hole N.

[0030] Among them, the temperature measuring component 12 includes a first connecting ring 121 and a temperature measuring component 122, such as a thermocouple. The first connecting ring 121 is fixed to the side of the mounting plate 14 away from the nozzle 113, for example, fixedly connected to the mounting plate 14 by a nut 123, and the temperature measuring component 122 is fixedly penetrated in the first connecting ring 121, and the temperature measuring end of the temperature measuring component 122 is close to the nozzle 113.

[0031] The driving assembly 13 includes a connecting plate 131, a driving motor 132, a driving wheel 133, a transmission member 134 and a driven wheel 135. The connecting plate 131 is fixedly connected to the side of the mounting plate 14 away from the nozzle 133. The driving motor 132 is fixedly connected to the connecting plate 131. The output end of the driving motor 132 is connected to the driving wheel 133. The transmission member 134 connects the driving wheel 133 and the driven wheel 135. The driven wheel 135 is fixedly sleeved on the gun barrel 112. When the driving motor 132 drives the driving wheel 133 to rotate, the driven wheel 135 is driven to rotate through the transmission member 134, and then the gun barrel 112 is driven to rotate. The central axis of the nozzle 113 is an arc, and the nozzle 113 rotates within a range of 360 degrees with the central axis of the gun barrel 112 as the center, so as to change the spraying direction of the material.

[0032] The transmission member 134 is a conveyor belt or a chain, and the connecting plate 131 passes through the circle formed by the transmission member 134 and is fixedly connected to the mounting plate 14. Figure 4 As shown, Figure 4It is a schematic diagram of a top view of the driving assembly, and there is no contact between the connecting plate 131 and the driving wheel 133, the transmission member 134 and the driven wheel 135, so as to ensure that the driving assembly 13 drives the spray gun 11 to rotate smoothly without obstruction.

[0033] In some embodiments, the spray device 100 further includes a cooling assembly 15, which is inserted into the same mounting hole of the mounting plate 14 together with the spray gun 11, and the cooling assembly 15 is fixedly connected to the mounting plate 14, for example, connected to the mounting plate 14 through a nut 153, and the gun barrel 112 is movably inserted into the cooling assembly 15. The material moves in the spray gun 11, and the spray gun 11 is in a high-temperature flue gas environment, and the cooling assembly 15 can cool it, reduce the failure rate, and improve the flue gas purification efficiency.

[0034] The cooling assembly 15 includes a second connecting ring 151 and a cooling sleeve 152. The second connecting ring 151 is fixed to the side of the mounting plate 14 away from the nozzle 113. The cooling sleeve 152 is fixedly penetrated through the second connecting ring 151. The barrel 112 is movably penetrated through the cooling sleeve 152. The cooling sleeve 152 has a hollow structure, and an air inlet 1521 and an air outlet 1522 are arranged on the outer surface. The air outlet 1522 is arranged at a position close to the nozzle 113, so that the cooling medium enters the cooling sleeve 152 from the air inlet 1521 and then flows out from the air outlet 1522. The air outlet 1522 can be arranged in an annular open type to better cool the spray gun 11 and improve the cooling effect.

[0035] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A spraying device for flue gas purification material, characterized in that: include: A spray gun, comprising a feed inlet, a gun barrel and a spray head, wherein the feed inlet and the spray head are respectively located at two ends of the gun barrel, and the central axis of the spray head is an arc; A temperature measuring component, arranged on one side of the spray gun, for measuring the ambient temperature at the position of the spray head; The driving assembly is arranged at the other side of the spray gun and is used to drive the spray gun to rotate so that the spray head sprays the material to the optimal reaction temperature area.

2. The spraying device according to claim 1, characterized in that It also includes a mounting plate, which has a plurality of mounting holes. The spray gun is movably inserted into one of the mounting holes, and the temperature measuring component is fixedly inserted into another mounting hole.

3. The spraying device according to claim 2, characterized in that The temperature measuring assembly includes a first connecting ring and a temperature measuring element. The first connecting ring is fixed to a side of the mounting plate away from the nozzle. The temperature measuring element is fixedly penetrated through the first connecting ring, and the temperature measuring end of the temperature measuring element is close to the nozzle.

4. The spraying device according to claim 2, characterized in that The driving assembly includes a connecting plate, a driving motor, a driving wheel, a transmission member and a driven wheel. The connecting plate is fixedly connected to the side of the mounting plate away from the nozzle, the driving motor is fixedly connected to the connecting plate, the output end of the driving motor is connected to the driving wheel, the transmission member connects the driving wheel and the driven wheel, and the driven wheel is fixedly sleeved on the gun barrel.

5. The spraying device according to claim 4, characterized in that The transmission member is a conveyor belt or a chain, the connecting plate passes through the circle formed by the transmission member and is fixedly connected to the mounting plate, and there is no contact between the connecting plate and the driving wheel, the transmission member and the driven wheel.

6. The spraying device according to claim 2, characterized in that It also includes a cooling component, which is inserted into the mounting hole together with the spray gun, and the cooling component is fixedly connected to the mounting plate, and the gun barrel is movably inserted into the cooling component.

7. The spraying device according to claim 6, characterized in that The cooling assembly includes a second connecting ring and a cooling sleeve, the second connecting ring is fixed to the side of the mounting plate away from the nozzle, the cooling sleeve is fixedly penetrated through the second connecting ring, and the gun barrel is movably penetrated through the cooling sleeve.

8. The spraying device according to claim 7, characterized in that The cooling jacket has a hollow structure, and an air inlet and an air outlet are arranged on the outer surface thereof.

9. The spraying device according to claim 8, characterized in that The air outlet is arranged at a position close to the nozzle.

10. A flue gas purification system, characterized in that: include: A plurality of injection devices, feed devices and processors according to any one of claims 1 to 9; Wherein, a plurality of the injection devices are installed in the same flue gas environment, and the feeding device is connected to the feed port of each of the injection devices to transfer the material to the spray gun; The processor is coupled to the temperature measuring component and the driving component, and is used to adjust the rotation parameters of the driving component according to the ambient temperature fed back by the temperature measuring component, so that the nozzle rotates to face the adjacent area with the best reaction temperature.

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