Spray gun device for SNCR (selective non-catalytic reduction) denitration system

Abstract

The utility model discloses a spray gun device for an SNCR (selective non-catalytic reduction) denitration system, which relates to the technical field of spray gun equipment and comprises an L-shaped mounting seat and a spray gun main body, the spray gun main body is mounted on the L-shaped mounting seat through a push-pull mechanism, a protective sleeve is mounted at one end of the lower end face of a horizontal section of the L-shaped mounting seat, and the spray gun main body is connected with a high-pressure cleaning component. The push-pull mechanism comprises an electric push rod fixed to the lower end face of the horizontal section of the L-shaped mounting base, one end of the electric push rod is connected with a fixing base, the spray gun body is fixed to the fixing base, the spray gun body is connected with a material conveying pipeline, and a nozzle is arranged on the spray gun body. According to the spray gun, residual amino reducing agents in the spray gun body can be sprayed out through the high-pressure cleaning assembly and the cleaning assembly, the spray nozzle is cleaned, the phenomenon that the spray nozzle is blocked due to the fact that the amino reducing agents are dry and hard is avoided, the spray gun body can be fed into the protective sleeve to be stored through the arranged push-pull mechanism, and the spray nozzle is protected; and damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spray gun equipment, in particular to a spray gun device for a SNCR denitration system. Background Art

[0002] SNCR is a mature NOx control technology. The existing SNCR denitrification technology, namely Selective Non-Catalytic Reduction (hereinafter referred to as SNCR) technology, is a clean denitrification technology that does not use a catalyst and uses a specific type of spray gun to atomize an amino reducing agent (such as ammonia water, urea solution, etc.) into droplets and directly sprays it into the furnace or cyclone separator within the temperature range of 850-1100°C to reduce and remove NOx in the flue gas to generate nitrogen and water.

[0003] The existing SNCR denitrification system spray gun device is easily damaged, resulting in high maintenance costs and troublesome replacement. There is also the problem of inconvenience in storing and protecting the spray gun, and the spray gun cannot be cleaned after use, which can easily lead to residual reducing agent crystallization and cause spray gun clogging, affecting the next use. Therefore, a SNCR denitrification system spray gun device is provided. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a spray gun device for an SNCR denitration system. By arranging a high-pressure cleaning component and a cleaning component, the amino reducing agent remaining in the spray gun body can be sprayed out, and the nozzle can be cleaned to avoid clogging of the nozzle due to the drying of the amino reducing agent. Moreover, the spray gun body can be sent into a protective sleeve for storage through the arranged push-pull mechanism, which protects the nozzle and avoids damage. The deficiencies in the prior art are overcome, and the utility model effectively solves the problems of the existing spray gun device for an SNCR denitration system, that the spray gun is easily damaged, resulting in high maintenance costs and troublesome replacement, and that it is inconvenient to store and protect the spray gun. Moreover, the spray gun cannot be cleaned after use, which easily leads to crystallization of the residual reducing agent, causing clogging of the spray gun and affecting the next use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spray gun device for a SNCR denitration system, comprising an L-shaped mounting seat and a spray gun body, wherein the spray gun body is mounted on the L-shaped mounting seat through a push-pull mechanism, a protective sleeve is mounted on one end of the lower end surface of the horizontal section of the L-shaped mounting seat, the spray gun body is connected to a high-pressure cleaning component, and a cleaning component is mounted on the L-shaped mounting seat;

[0007] The push-pull mechanism comprises an electric push rod fixed on the lower end surface of the horizontal section of the L-shaped mounting seat, one end of the electric push rod is connected to a fixing seat, and the spray gun body is fixed on the fixing seat.

[0008] Through the above scheme, by setting up a high-pressure cleaning component and a cleaning component, the amino reducing agent remaining in the spray gun body can be sprayed out and the nozzle can be cleaned to prevent the amino reducing agent from drying and causing nozzle clogging. The spray gun body can be sent into the protective cover for storage through the set push-pull mechanism, which protects the nozzle and prevents damage.

[0009] Preferably, a material conveying pipeline is connected to the spray gun body, and a nozzle is arranged on the spray gun body.

[0010] Preferably, the high-pressure cleaning assembly includes an air compressor fixed to the upper end surface of the horizontal section of the L-shaped mounting seat, an air outlet valve of the air compressor is connected to a hose, and one end of the hose is connected to the spray gun body.

[0011] Preferably, a strip-shaped limiting hole is opened on the horizontal section of the L-shaped mounting seat, and the hose passes through the strip-shaped limiting hole.

[0012] Preferably, the cleaning assembly includes a valve fixed on the horizontal section of the L-shaped mounting seat, one end of the valve is connected to a water pipe, one end of the water pipe is equipped with a nozzle, and the other end of the valve is connected to an external water supply device.

[0013] Preferably, a T-shaped block is provided at the top of the protective sleeve, and a T-shaped slot is provided at the end of the L-shaped mounting seat, and the T-shaped block and the T-shaped slot form a plug-in fit.

[0014] The beneficial effects of the utility model are:

[0015] By setting up a high-pressure cleaning component and a cleaning component, the amino reducing agent remaining in the spray gun body can be sprayed out and the nozzle can be cleaned to prevent the amino reducing agent from drying and causing nozzle clogging. The push-pull mechanism can also be used to send the spray gun body into a protective cover for storage, thereby protecting the nozzle and preventing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-perspective stereoscopic structural schematic diagram of a spray gun device for an SNCR denitrification system proposed by the utility model.

[0017] Figure 2 This is a second-view stereoscopic structural schematic diagram of a spray gun device for an SNCR denitrification system proposed by the utility model.

[0018] Figure 3 This is a third-view stereoscopic structural schematic diagram of a spray gun device for an SNCR denitrification system proposed by the utility model.

[0019] Figure 4 A spray gun device for a SNCR denitration system proposed in the utility model Figure 2Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. L-shaped mounting base; 2. spray gun body; 3. nozzle; 4. material conveying pipeline; 5. electric push rod; 6. strip limit hole; 7. protective cover; 8. water pipe; 9. valve; 10. hose; 11. air compressor; 12. nozzle; 13. fixing base; 14. T-shaped block; 15. T-shaped slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1, reference Figure 1-4 A spray gun device for a SNCR denitration system comprises an L-shaped mounting seat 1 and a spray gun body 2. The spray gun body 2 is mounted on the L-shaped mounting seat 1 through a push-pull mechanism. A protective sleeve 7 is mounted on one end of the lower end surface of the horizontal section of the L-shaped mounting seat 1.

[0023] The push-pull mechanism includes an electric push rod 5 fixed to the lower end surface of the horizontal section of the L-shaped mounting seat 1, one end of the electric push rod 5 is connected to a fixing seat 13, and the spray gun body 2 is fixed on the fixing seat 13;

[0024] The spray gun body 2 is connected to a material conveying pipeline 4, and a nozzle 3 is arranged on the spray gun body 2. The amino reducing agent is conveyed to the spray gun body 2 through the material conveying pipeline 4, and finally sprayed out from the nozzle 3;

[0025] The spray gun body 2 is connected to a high-pressure cleaning assembly, which includes an air compressor 11 fixed to the upper end surface of the horizontal section of the L-shaped mounting seat 1, and an air outlet valve of the air compressor 11 is connected to a hose 10, one end of which is connected to the spray gun body 2;

[0026] A strip-shaped limiting hole 6 is provided on the horizontal section of the L-shaped mounting seat 1, and the hose 10 passes through the strip-shaped limiting hole 6 to prevent the hose 10 from swinging around;

[0027] A cleaning assembly is installed on the L-shaped mounting seat 1, and the cleaning assembly includes a valve 9 fixed on the horizontal section of the L-shaped mounting seat 1, one end of the valve 9 is connected to a water pipe 8, one end of the water pipe 8 is installed with a nozzle 12, and the other end of the valve 9 is connected to an external water supply device;

[0028] A T-shaped block 14 is provided at the top of the protective sleeve 7 , and a T-shaped slot 15 is provided at the end of the L-shaped mounting seat 1 . The T-shaped block 14 and the T-shaped slot 15 form a plug-in fit, which facilitates the disassembly and assembly of the protective sleeve 7 .

[0029] Working principle: After the spray gun is used, open the air outlet valve of the air compressor 11 to allow high-pressure gas to enter the spray gun body 2, thereby spraying out the amino reducing agent remaining in the spray gun body 2, and then use the electric push rod 5 to push the spray gun body 2, so that the nozzle 3 on the spray gun body 2 is moved to the top of the nozzle 12, and the valve 9 is opened to rinse the nozzle 3 with clean water, so as to clean the nozzle 3 of the spray gun body 2 and avoid the amino reducing agent from drying and causing the nozzle 3 to be blocked. Finally, use the electric push rod 5 to push it towards the direction of the protective cover 7, so that the spray gun body 2 enters the protective cover 7, so that the spray gun body 2 can be stored and the nozzle 3 can be protected.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A spray gun device for a SNCR denitration system, comprising an L-shaped mounting seat (1) and a spray gun body (2), characterized in that: The spray gun body (2) is mounted on the L-shaped mounting seat (1) via a push-pull mechanism, a protective sleeve (7) is mounted on one end of the lower end surface of the horizontal section of the L-shaped mounting seat (1), the spray gun body (2) is connected to a high-pressure cleaning component, and a cleaning component is mounted on the L-shaped mounting seat (1); The push-pull mechanism comprises an electric push rod (5) fixed to the lower end surface of the horizontal section of the L-shaped mounting seat (1), one end of the electric push rod (5) is connected to a fixing seat (13), and the spray gun body (2) is fixed on the fixing seat (13).

2. A spray gun device for a SNCR denitration system according to claim 1, characterized in that: The spray gun body (2) is connected to a material conveying pipeline (4), and a nozzle (3) is provided on the spray gun body (2).

3. The spray gun device for SNCR denitration system according to claim 1, characterized in that: The high-pressure cleaning assembly comprises an air compressor (11) fixed to the upper end surface of the horizontal section of the L-shaped mounting seat (1); an air outlet valve of the air compressor (11) is connected to a hose (10); one end of the hose (10) is connected to the spray gun body (2).

4. A spray gun device for a SNCR denitration system according to claim 3, characterized in that: A strip-shaped limiting hole (6) is provided on the horizontal section of the L-shaped mounting seat (1), and the hose (10) passes through the strip-shaped limiting hole (6).

5. The spray gun device for SNCR denitration system according to claim 1, characterized in that: The cleaning assembly comprises a valve (9) fixed on a horizontal section of an L-shaped mounting seat (1), one end of the valve (9) is connected to a water pipe (8), one end of the water pipe (8) is equipped with a spray head (12), and the other end of the valve (9) is connected to an external water supply device.

6. The spray gun device for a SNCR denitration system according to claim 1, characterized in that: The top end of the protective sleeve (7) is provided with a T-shaped clamping block (14), and the end of the L-shaped mounting seat (1) is provided with a T-shaped clamping slot (15), and the T-shaped clamping block (14) and the T-shaped clamping slot (15) form a plug-in fit.

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