Pipeline unblocking device for integrated denitration system

Abstract

The invention discloses a pipeline unblocking device for an integrated denitration system, and relates to the technical field of denitration pipeline unblocking, the pipeline unblocking device comprises a Roots blower, an agent bin and a spray gun, and further comprises a material conveying pipeline, the material conveying pipeline is formed by combining a plurality of steel pipes, every two sections of steel pipes are connected in a clamped mode through a locking mechanism, and the locking mechanism is used for locking the material conveying pipeline; according to the pipeline unblocking device for the integrated denitration system, the compressed air unblocking assembly and the circulating water unblocking assembly are arranged on the material conveying pipeline, when an external system displays that the pipeline is blocked, compressed air is adopted to purge the pipeline, and when the compressed air cannot be used for unblocking, circulating water is adopted to unblock; the quick-connection sight glass type spray gun connector is arranged in a hoop type connection mode, the blockage clearing condition can be observed more visually, disassembly and assembly are convenient, the maintenance time is shortened, the blockage clearing device adapts to different blockage conditions, the blockage clearing efficiency is improved, and the influence on production is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of denitration pipeline blockage clearing, and in particular to a pipeline blockage clearing device for an integrated denitration system. Background Art

[0002] The existing denitrification technologies include SNCR, SCR and integrated denitrification. Under the working condition of gas boiler, SNCR and SCR processes are not suitable, while integrated denitrification process is suitable for this working condition. Integrated denitrification process refers to solid polymer denitrification technology without using catalyst. Solid polymer reducing agent is sprayed into boiler or flue through pipeline and agent spray gun, sublimates and reacts with NO X A reduction reaction occurs, thereby achieving the denitrification process that meets emission targets.

[0003] During the operation of the integrated denitrification system, the fan often clogs the pipeline when conveying the reagent because the reagent is solid particles and is easily affected by moisture. At the same time, the interface between the pipeline and the spray gun is also prone to frequent clogging due to changes in the pipeline diameter, which is inconvenient to clean. Therefore, the present invention provides a clearing device for the pipeline of the integrated denitrification system to solve the problem of blockage in the pipeline and the spray gun. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a pipeline clearing device for an integrated denitrification system, which solves the problem that the fan often clogs the pipeline during the process of conveying the agent because the agent is solid particles and is easily affected by moisture. At the same time, the interface between the pipeline and the spray gun is also prone to frequent clogging due to changes in the pipeline diameter.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pipeline clearing device for an integrated denitration system, comprising a Roots blower, a reagent bin and a spray gun, and also comprising:

[0006] The material conveying pipeline is composed of a plurality of steel pipes, and each two sections of the steel pipes are clamped together by a locking mechanism;

[0007] A compressed air clearing component is arranged on the surface of the material conveying pipeline and is used to purge the pipeline with compressed air;

[0008] A circulating water blockage clearing component is arranged on the top of the feed conveying pipeline and is used for clearing blockage with circulating water;

[0009] The quick-connect sight glass spray gun interface is set between the spray gun and the material delivery pipeline;

[0010] The drying mechanism is arranged on one side of the material conveying pipeline and is used for heating and drying the material conveying pipeline.

[0011] Preferably, the compressed air blockage clearing assembly comprises a first branch pipe and a second branch pipe which are connected to the surface of the material conveying pipeline, and one end of the first branch pipe and the second branch pipe are flange-connected to a compressed air pipeline network.

[0012] Preferably, the circulating water blockage clearing assembly comprises a water inlet pipe, the bottom end of the water inlet pipe is connected to the top flange of the material delivery pipeline, and the other end surface of the material delivery pipeline is connected to a water outlet pipe.

[0013] Preferably, the drying mechanism includes a hot air blower, the air inlet of the hot air blower is connected to a filter through a pipe, the air outlet of the hot air blower is connected to a first air inlet pipe, and the bottom of the first air inlet pipe is connected to a second air inlet pipe, the vertical section and the horizontal section of the conveying pipeline are both provided with outlet pipes, and the inner wall of the outlet pipe is fixedly connected to a dustproof net.

[0014] Preferably, the feed pipeline comprises a base layer, a heat insulating layer sprayed on the inner wall of the base layer, and a nano coating sprayed on the inner wall of the heat insulating layer.

[0015] Preferably, the air outlet of the Roots blower is connected to a feed barrel, and the top of the feed barrel is connected to the bottom of the medicine bin, one side of the feed barrel is flange-connected to one end of the feed pipe through a pipe, and both ends of the quick-connect sight glass spray gun interface are connected by a clamp type.

[0016] Preferably, the locking mechanism includes flanges arranged at both ends of the steel pipe, annular sleeves are fixedly connected to both sides of the surface of the flange on one side, a fixing rod is threaded through the surface of the flange on the other side, springs are fixedly connected to both sides of the inner wall of the annular sleeve, and one end of the spring is fixedly connected to an arc plate, and a clamping block is fixedly connected to the inner side of the arc plate.

[0017] Preferably, the front and rear sides of the inner wall of the annular sleeve are fixedly connected to limit plates, the surface of the fixing rod is provided with a groove matched with the block, and the top of the arc plate is fixedly connected to a handle.

[0018] The present invention provides a pipeline clearing device for an integrated denitration system, which has the following beneficial effects:

[0019] (1) The pipeline clearing device for the integrated denitrification system is provided with a compressed air clearing component and a circulating water clearing component on the feed pipeline. When the external system indicates that the pipeline is blocked, the pipeline is purged with compressed air. When the compressed air cannot clear the blockage, the circulating water is used for clearing the blockage. At the interface between the feed pipeline and the spray gun, a clamp-type connection is provided with a quick-connect sight glass spray gun interface, which is convenient for more intuitive observation of the clearing situation and easy to disassemble and assemble, thereby reducing maintenance time. The clearing device is adaptable to different blockage situations, improves the clearing efficiency, and reduces the impact on production.

[0020] (2) The pipeline clearing device for the integrated denitrification system is composed of a plurality of steel pipe sections, which are connected by a locking mechanism. The operation is simple and quick without the need for external tools. When a certain part of the pipeline is damaged or blocked too seriously, the pipeline at that place can be disassembled separately, making it more convenient to clean or replace.

[0021] (3) The pipeline clearing device for the integrated denitrification system uses a drying mechanism to transport hot air into the feed pipeline after the circulating water clearing component clears the feed pipeline, so as to quickly evaporate the water and carry it away through the airflow, thereby accelerating the pipeline drying speed and improving the efficiency of denitrification production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 is a schematic diagram of the air outlet pipe structure of the present invention;

[0025] Figure 4 It is a cross-sectional view of the material delivery pipeline structure of the present invention;

[0026] Figure 5 This is a disassembled diagram of the locking mechanism structure of the present invention;

[0027] Figure 6 It is a top view of the internal structure of the annular sleeve plate of the present invention.

[0028] In the figure: 1. Roots blower; 2. reagent bin; 3. spray gun; 4. feed pipeline; 41. base layer; 42. heat insulation layer; 43. nano coating; 401. steel pipe; 5. quick-connect sight glass spray gun interface; 6. drying mechanism; 61. hot air blower; 62. filter; 63. first air inlet pipe; 64. second air inlet pipe; 65. air outlet pipe; 66. dust net; 7. first branch pipe; 8. second branch pipe; 9. compressed air network; 10. water inlet pipe; 11. water outlet pipe; 12. feed barrel; 13. flange; 14. annular sleeve plate; 15. fixing rod; 16. spring; 17. arc plate; 18. block; 19. limit plate; 20. slot; 21. handle. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1

[0031] See also Figures 1 to 4 As shown, the present invention provides a pipeline clearing device for an integrated denitration system, comprising a Roots blower 1, a reagent bin 2 and a spray gun 3, wherein the reagent bin 2 stores solid reagents, a feed pipe 4 is L-shaped, and the height difference of the reagent feed pipe 4 is large, and further comprising:

[0032] The material delivery pipeline 4 is composed of a plurality of steel pipes 401, and each two sections of the steel pipes 401 are connected by a locking mechanism;

[0033] A compressed air clearing assembly is arranged on the surface of the material delivery pipeline 4 and is used to purge the pipeline with compressed air. The compressed air clearing assembly includes a first branch pipe 7 and a second branch pipe 8 connected to the surface of the material delivery pipeline 4. Valves are arranged on the first branch pipe 7 and the second branch pipe 8. One end of the first branch pipe 7 and the second branch pipe 8 are flange-connected to a compressed air network 9. The compressed air network 9 is a compressed air pipeline in the factory network. The first branch pipe 7 and the second branch pipe 8 are respectively located in the vertical section and the horizontal section of the material delivery pipeline 4, so that the clearing effect of compressed air is improved when the height difference of the pharmaceutical delivery pipeline is large;

[0034] A circulating water blockage clearing component is arranged at the top of the feed pipe 4 and is used to clear blockage with circulating water. The circulating water blockage clearing component includes a water inlet pipe 10. The bottom end of the water inlet pipe 10 is connected to the top flange of the feed pipe 4. The other end surface of the feed pipe 4 is connected to a water outlet pipe 11 to form a circulating water system with the external water pipe network. When compressed air cannot clear blockage, circulating water can be used to clear blockage. Valves are arranged inside the water inlet pipe 10 and the water outlet pipe 11.

[0035] A quick-connect sight glass spray gun interface 5 is provided between the spray gun 3 and the material delivery pipeline 4, wherein a part of the interface is a transparent structure, so that the clearing condition can be observed more intuitively;

[0036] A drying mechanism 6 is provided on one side of the material delivery pipeline 4 and is used for heating and drying the material delivery pipeline 4;

[0037] The air outlet of the Roots blower 1 is connected to the feed barrel 12, and the top of the feed barrel 12 is connected to the bottom of the reagent bin 2. One side of the feed barrel 12 is flange-connected to one end of the feed pipe 4 through a pipe. Both ends of the quick-connect sight glass spray gun interface 5 are connected by clamps, which is convenient for disassembly and assembly, reducing maintenance time.

[0038] Through the arrangement of the above structure, when the external system shows that the pipeline is blocked, compressed air is used to purge the pipeline, and when compressed air cannot clear the blockage, circulating water is used to clear the blockage. At the same time, at the interface between the feed pipeline 4 and the spray gun 3, a quick-connect sight glass spray gun interface 5 is provided with a clamp-type connection, which is convenient for more intuitive observation of the clearing situation and easy disassembly and assembly. The above-mentioned clearing device can adapt to different blockage situations, improve the clearing efficiency, and reduce the impact on production.

[0039] Embodiment 2

[0040] Based on Example 1, please refer to Figure 1 , Figure 3 and Figure 4 As shown, the specific improvements are as follows: the drying mechanism 6 includes a hot air blower 61, the hot air blower 61 can adjust the temperature and wind speed, the air inlet of the hot air blower 61 is connected to a filter 62 through a pipeline, the filter 62 filters the dust and impurities in the air, so that the drying gas is cleaner, the air outlet of the hot air blower 61 is connected to a first air inlet pipe 63, and the bottom of the first air inlet pipe 63 is connected to a second air inlet pipe 64, the first air inlet pipe 63 and the second air inlet pipe 64 are respectively connected to the top and the bottom of the material conveying pipeline 4, so that the hot air distribution is more uniform, and the drying efficiency of the pipeline is improved, the vertical section and the horizontal section of the material conveying pipeline 4 are both provided with an outlet pipe 65, the first air inlet pipe 63, the second air inlet pipe 64 and the outlet pipe 65 are all provided with solenoid valves, which are controlled by an external switch, and the inner wall of the outlet pipe 65 is fixedly connected with a dustproof net 66, the dustproof net 66 prevents external dust from entering the material conveying pipeline 4 through the outlet pipe 65 when the air is circulating;

[0041] The feed pipeline 4 includes a base layer 41, a heat-insulating layer 42 sprayed on the inner wall of the base layer 41, and a nano-coating 43 sprayed on the inner wall of the heat-insulating layer 42. The heat-insulating layer 42 is a ceramic spray material, which can prevent scalding when the pipeline is heated. The nano-coating 43 is hydrophobic, which can significantly reduce moisture adhesion and retention, reduce moisture accumulation, and help improve the efficiency of the drying process.

[0042] Through the arrangement of the above structure, after the circulating water clearing component clears the feed pipeline 4, the drying mechanism 6 can be used to transport hot air to the inside of the feed pipeline 4, quickly evaporate the moisture and carry it away through the airflow, thereby accelerating the pipeline drying speed and improving the efficiency of denitrification production.

[0043] Embodiment 3

[0044] In conjunction with Example 1 and Example 2, please refer to Figure 1 , Figure 5 and Figure 6 As shown, the specific improvements are as follows: the locking mechanism includes flanges 13 arranged at both ends of the steel pipe 401, and a sealing ring is arranged at the connection of the two flanges 13 to improve the sealing performance. An annular sleeve 14 is fixedly connected to both sides of the surface of the flange 13 on one side, and a fixing rod 15 is threaded through the surface of the flange 13 on the other side. The bottom of the surface of the fixing rod 15 is provided with a thread, which can be connected with the threaded hole on the surface of the flange 13 to improve the connection stability of the locking mechanism. Springs 16 are fixedly connected to both sides of the inner wall of the annular sleeve 14, and an arc plate 17 is fixedly connected to one end of the spring 16, and a block 18 is fixedly connected to the inner side of the arc plate 17. Limiting plates 19 are fixedly connected to the front and rear sides of the inner wall of the annular sleeve 14 to limit the fixing rod 15. A slot 20 adapted to the block 18 is provided on the surface of the fixing rod 15, and a handle 21 is fixedly connected to the top of the arc plate 17 to facilitate the movement of the block 18.

[0045] Through the arrangement of the above structure, multiple sections of steel pipes 401 are connected by locking mechanisms, which is simple and quick to operate without the aid of external tools. When damage or severe blockage occurs at a certain point in the feed pipeline 4, the pipeline at that point can be disassembled separately, making it more convenient to clean or replace.

[0046] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment compatible with the equipment can be used.

[0047] When in use, the reagent is sprayed into the furnace through the Roots blower 1 through the feed pipe 4 and the spray gun 3. When the feed pipe 4 is blocked, the valves of the first branch pipe 7 and the second branch pipe 8 are manually opened, and the compressed air pipe network 9 transports compressed air to the feed pipe 4. The compressed air blows through the pipe to clear the blockage. When the compressed air cannot clear the blockage, the valves of the water inlet pipe 10 and the water outlet pipe 11 are manually opened, and the circulating water pipe network transports water to the feed pipe 4. The blockage is cleared by circulating water. After the blockage is cleared by circulating water, the hot air blower 61 is started to transport hot air to the feed pipe 4 through the first air inlet pipe 63 and the second air inlet pipe 64. At the same time, the valve of the air outlet pipe 65 is opened to quickly evaporate the water and take it away through the air flow, thereby accelerating the drying speed of the pipe.

[0048] The material delivery pipeline 4 is composed of multiple sections of steel pipes 401. When the steel pipes 401 are assembled, the handle 21 in the annular sleeve 14 is pulled to drive the arc plate 17 to squeeze the spring 16, and the block 18 is moved to both sides, so that the fixing rod 15 on one section of the steel pipe 401 passes through the two flanges 13 and the annular sleeve 14 on the other section of the steel pipe 401 in sequence, and then the handle 21 is released. Under the reaction force of the spring 16, the block 18 enters the slot 20 of the fixing rod 15, thereby clamping the flanges 13 on the two sections of the steel pipe 401. Similarly, the assembly of the material delivery pipeline 4 can be completed. Conversely, the block 18 is driven to move out of the slot 20, and the fixing rod 15 is pulled out of the two flanges 13, so that the two sections of the steel pipe 401 can be disassembled. When a certain part of the material delivery pipeline 4 is damaged or blocked too seriously, the pipeline at that place can be disassembled separately for easy cleaning or replacement.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline clearing device for an integrated denitration system, comprising a Roots blower (1), a reagent bin (2) and a spray gun (3), characterized in that: Also includes: The material conveying pipeline (4) is composed of a plurality of steel pipes (401), and each two sections of the steel pipes (401) are clamped together by a locking mechanism; A compressed air clearing assembly is arranged on the surface of the material conveying pipeline (4) and is used to purge the pipeline with compressed air; A circulating water blockage clearing component is arranged on the top of the feed conveying pipeline (4) and is used for clearing blockages using circulating water; A quick-connect sight glass spray gun interface (5) is arranged between the spray gun (3) and the material delivery pipeline (4); The drying mechanism (6) is arranged on one side of the material conveying pipeline (4) and is used to heat and dry the material conveying pipeline (4).

2. A pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The compressed air clearing assembly comprises a first branch pipe (7) and a second branch pipe (8) which are connected to the surface of the material conveying pipeline (4); one end of the first branch pipe (7) and one end of the second branch pipe (8) are flange-connected to a compressed air pipe network (9).

3. The pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The circulating water blockage clearing assembly comprises a water inlet pipe (10), the bottom end of the water inlet pipe (10) is connected to the top flange of the material delivery pipeline (4), and the other end surface of the material delivery pipeline (4) is connected to a water outlet pipe (11).

4. The pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The drying mechanism (6) comprises a hot air blower (61), the air inlet of the hot air blower (61) is connected to a filter (62) through a pipeline, the air outlet of the hot air blower (61) is connected to a first air inlet pipe (63), and the bottom of the first air inlet pipe (63) is connected to a second air inlet pipe (64), the vertical section and the horizontal section of the conveying pipeline (4) are both provided with an air outlet pipe (65), and the inner wall of the air outlet pipe (65) is fixedly connected to a dustproof net (66).

5. The pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The material delivery pipeline (4) comprises a base layer (41), a heat insulation layer (42) sprayed on the inner wall of the base layer (41), and a nano coating (43) sprayed on the inner wall of the heat insulation layer (42).

6. The pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The air outlet of the Roots blower (1) is connected to a feed barrel (12), and the top of the feed barrel (12) is connected to the bottom of the reagent bin (2). One side of the feed barrel (12) is flange-connected to one end of a material delivery pipe (4) through a pipe, and both ends of the quick-connect sight glass spray gun interface (5) are connected in a clamp-type manner.

7. The pipeline clearing device for an integrated denitration system according to claim 1, characterized in that: The locking mechanism comprises flanges (13) arranged at both ends of the steel pipe (401), an annular sleeve (14) is fixedly connected to both sides of the surface of the flange (13) on one side, a fixing rod (15) is threadedly penetrated through the surface of the flange (13) on the other side, a spring (16) is fixedly connected to both sides of the inner wall of the annular sleeve (14), one end of the spring (16) is fixedly connected to an arc plate (17), and a clamping block (18) is fixedly connected to the inner side of the arc plate (17).

8. The pipeline clearing device for an integrated denitration system according to claim 7, characterized in that: The front and rear sides of the inner wall of the annular sleeve (14) are fixedly connected to limit plates (19), the surface of the fixing rod (15) is provided with a clamping groove (20) adapted to the clamping block (18), and the top of the arc plate (17) is fixedly connected to a handle (21).

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