Efficient SNCR (selective non-catalytic reduction) denitration device

Abstract

The utility model discloses an efficient SNCR (selective non-catalytic reduction) denitration device which comprises a denitration reaction kettle, the right side of the denitration reaction kettle is fixedly connected with a support plate, and the top of the support plate is provided with a lifting component. According to the denitration reaction kettle, a reducing agent is conveyed through the supply pipe, and then when a user adjusts the denitration reaction kettle according to the required height, the user drives the motor, the transmission motor drives the screw rod to rotate, the screw rod rotates to drive the screw block to move, and the screw block moves to drive the tool frame to move, so that the gas ejector pipe enters the denitration reaction kettle; when the height is adjusted to a proper height, a supply pipe conveys the reducing agent, an air spraying pipe sprays the reducing agent, then a user starts a rotating motor, the rotating motor drives a transmission gear to rotate, the transmission gear rotates to drive a driven gear to rotate, and the driven gear rotates to drive a rotating sealing joint to rotate, so that the spraying range of the reducing agent can be enlarged; the flue gas can fully react with a reducing agent, so that the denitration efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration devices, in particular to an efficient SNCR denitration device. Background Technique

[0002] Selective non-catalytic reduction (SNCR) technology is one of the main denitration technologies at present. In the narrow temperature range of 850 - 1050 °C in the furnace, without using a catalyst, ammonia or urea and other amino reductants are evenly sprayed at a suitable place in the flue gas in the furnace. The reductant decomposes rapidly in the furnace, reacts with nitrogen oxides in the flue gas to produce nitrogen and water, and basically does not react with oxygen in the flue gas.

[0003] After retrieval, the patent publication number: CN217613993U. The utility model discloses a highly efficient SNCR denitration device with automatic adjustment, including a reaction kettle denitration reaction kettle. The top of the reaction kettle denitration reaction kettle is movably connected through a through hole with an input pipe. The top of the input pipe penetrates through the reaction kettle denitration reaction kettle and extends to the outside of the reaction kettle denitration reaction kettle and is connected with a hose. One end of the hose far from the input pipe is connected with a liquid supply mechanism. The bottom end of the input pipe penetrates through the reaction kettle denitration reaction kettle and extends into the reaction kettle denitration reaction kettle and is connected with a spray gun. The side wall of the input pipe is connected with a connecting plate, and one end of the connecting plate far from the input pipe is connected with a reciprocating lifting mechanism. By setting the reciprocating lifting mechanism in the utility model, the spray gun can be automatically driven to reciprocate up and down in the reaction kettle denitration reaction kettle, so that the spray gun sprays the reductant more comprehensively in the reaction kettle denitration reaction kettle, avoiding the situation of incomplete spraying, so that the flue gas can fully react with the reductant, effectively improving the denitration efficiency.

[0004] The above-mentioned prior art solution has the following defects: when spraying the reductant, the spray gun can only lift and spray, and the spraying position is relatively single. It cannot spray multiple positions on the inner wall of the reaction kettle, and there is still the phenomenon of uneven spraying, reducing the denitration efficiency and being convenient for users to use.

[0005] Therefore, it is necessary to design and transform the denitration device to effectively prevent the situation that when spraying the reductant, the spray gun can only lift and spray, the spraying position is relatively single, it cannot spray multiple positions on the inner wall of the reaction kettle, and there is still the phenomenon of uneven spraying, reducing the denitration efficiency. Summary of the Invention

[0006] To solve the problems raised in the above background technique, the purpose of the utility model is to provide a highly efficient SNCR denitration device, which has the advantage of high-efficiency denitration, and solves the problem that when spraying the reductant, the spray gun can only lift and spray, the spraying position is relatively single, it cannot spray multiple positions on the inner wall of the reaction kettle, and there is still the phenomenon of uneven spraying.

[0007] To achieve the above object, the present utility model provides the following technical solutions: a high-efficiency SNCR denitration device, including a denitration reactor, a support plate is fixedly connected to the right side of the denitration reactor, a lifting assembly is arranged on the top of the support plate, a general assembly frame is arranged on the top of the denitration reactor, a rotary seal joint is fixedly installed on the top of the general assembly frame, an air injection pipe is communicated with the bottom of the rotary seal joint, a supply pipe is communicated with the top of the rotary seal joint, and a rotary assembly is arranged on the top of the general assembly frame.

[0008] Preferably, the lifting assembly includes a driving motor fixedly connected to the top of the support plate, a screw rod is fixedly connected to the output end of the driving motor, a screw block is threadedly connected to the surface of the screw rod, and the screw block is fixedly connected to the surface of the general assembly frame.

[0009] Preferably, the rotary assembly includes a transmission box fixedly connected to the top of the general assembly frame, a rotary motor is fixedly installed inside the transmission box, the output end of the rotary motor penetrates to the bottom of the general assembly frame and is fixedly connected to a transmission gear, and a driven gear meshing with the transmission gear is fixedly connected to the bottom of the surface of the rotary seal joint.

[0010] Preferably, limit rods are fixedly connected to the four corners of the top of the support plate, and limit blocks slidably connected to the limit rods are fixedly connected to both sides of the screw block.

[0011] Preferably, a protective ring is fixedly connected to the top of the limit rod, and the number of the protective rings is several.

[0012] Preferably, heat dissipation openings are formed on the surface of the transmission box, and the number of the heat dissipation openings is several.

[0013] Preferably, a protective net is fixedly installed on the left side of the transmission box, and the protective net is used in cooperation with the heat dissipation openings.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The utility model transports the reducing agent through a supply pipe. When the user adjusts it according to the required height, the user drives the motor, the driving motor drives the screw to rotate, the rotation of the screw drives the nut block to move, the movement of the nut block drives the tooling rack to move, so that the spray pipe enters the interior of the denitration reactor. When adjusted to the appropriate height, the supply pipe transports the reducing agent, causing the spray pipe to spray the reducing agent. Then the user starts the rotating motor, the rotating motor drives the driving gear to rotate, the rotation of the driving gear drives the driven gear to rotate, and the rotation of the driven gear drives the rotating seal joint to rotate, which can increase the spraying range of the reducing agent, enabling the flue gas to fully react with the reducing agent, effectively improving the denitration efficiency, making the denitration reactor achieve the effect of high-efficiency denitration, replacing the existing method of spraying the reducing agent in a single direction, thereby achieving efficient spraying of the reducing agent with a large range and uniform spraying.

[0016] 2. Through the setting of the lifting component, the utility model can drive the screw, effectively improving the stability of the screw and the transmission efficiency of the screw, facilitating the user to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 is a three-dimensional bottom view schematic diagram of the utility model;

[0019] Figure 3 is the utility model Figure 2 is an enlarged schematic diagram at A in the figure.

[0020] In the figure: 1, denitration reactor; 2, support plate; 3, lifting component; 31, driving motor; 32, screw; 33, nut block; 4, general assembly rack; 5, rotating seal joint; 6, spray pipe; 7, supply pipe; 8, rotating component; 81, transmission box; 82, rotating motor; 83, driving gear; 84, driven gear; 9, limiting rod; 10, limiting block; 11, protective ring; 12, heat dissipation port; 13, protective net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Such as Figures 1 to 3As shown in the figure, the high-efficiency SNCR denitration device provided by the utility model includes a denitration reaction kettle 1. A support plate 2 is fixedly connected to the right side of the denitration reaction kettle 1. A lifting component 3 is arranged on the top of the support plate 2. A general assembly frame 4 is arranged on the top of the denitration reaction kettle 1. A rotary seal joint 5 is fixedly installed on the top of the general assembly frame 4. A gas injection pipe 6 is communicated with the bottom of the rotary seal joint 5. A supply pipe 7 is communicated with the top of the rotary seal joint 5. A rotary component 8 is arranged on the top of the general assembly frame 4.

[0023] Reference Figure 3 , the lifting component 3 includes a driving motor 31. The driving motor 31 is fixedly connected to the top of the support plate 2. The output end of the driving motor 31 is fixedly connected with a screw rod 32. A screw block 33 is threadedly connected to the surface of the screw rod 32. The screw block 33 is fixedly connected to the surface of the general assembly frame 4.

[0024] As a technical optimization scheme of the utility model, through the setting of the lifting component 3, the screw rod 32 can be driven, effectively improving the stability of the screw rod 32 and the driving efficiency of the screw rod 32, which is convenient for users to use.

[0025] Reference Figure 3 , the rotary component 8 includes a transmission box 81. The transmission box 81 is fixedly connected to the top of the general assembly frame 4. A rotary motor 82 is fixedly installed inside the transmission box 81. The output end of the rotary motor 82 penetrates to the bottom of the general assembly frame 4 and is fixedly connected with a transmission gear 83. A driven gear 84 meshing with the transmission gear 83 is fixedly connected to the bottom surface of the rotary seal joint 5.

[0026] As a technical optimization scheme of the utility model, through the setting of the rotary motor 82, the transmission gear 83 can be driven, effectively improving the functionality of the transmission gear 83 and driving the driven gear 84, which is convenient for users to use.

[0027] Reference Figure 3 , limit rods 9 are fixedly connected to the four corners of the top of the support plate 2. Limit blocks 10 slidably connected to the limit rods 9 are fixedly connected to both sides of the screw block 33.

[0028] As a technical optimization scheme of the utility model, through the setting of the limit rods 9, the limit blocks 10 can slide between them, effectively improving the stability of the limit blocks 10 and the stability of the screw block 33, and avoiding the phenomenon of the screw block 33 shaking.

[0029] Reference Figure 3 , a protection ring 11 is fixedly connected to the top of the limit rod 9. The number of the protection rings 11 is several.

[0030] As a technical optimization solution of the present utility model, through the setting of the protective ring 11, the top of the limiting rod 9 can be protected to prevent the limiting rod 9 from detaching from the limiting block 10, effectively improving the stability of the limiting rod 9 and facilitating the use by the user.

[0031] Reference Figure 3 , a heat dissipation opening 12 is provided on the surface of the transmission box 81, and the number of the heat dissipation openings 12 is several.

[0032] As a technical optimization solution of the present utility model, through the setting of the heat dissipation opening 12, the surface of the transmission box 81 can be dissipated heat, effectively improving the safety of the transmission box 81 and avoiding the phenomenon of overheating inside the transmission box 81.

[0033] Reference Figure 3 , a protective net 13 is fixedly installed on the left side of the transmission box 81, and the protective net 13 is used in cooperation with the heat dissipation opening 12.

[0034] As a technical optimization solution of the present utility model, through the setting of the protective net 13, it can be used in cooperation with the heat dissipation opening 12, effectively improving the safety of the heat dissipation opening 12 and enabling the heat dissipation opening 12 to ventilate stably.

[0035] The working principle and usage process of the present utility model: When in use, when the user needs to spray the reducing agent, the user transports the reducing agent through the supply pipe 7. Then, when the user adjusts according to the required height, the user drives the motor 31, the driving motor 31 drives the screw 32 to rotate, the screw 32 rotates to drive the nut block 33 to move, the nut block 33 moves to drive the tooling frame to move, so that the spray pipe 6 enters the interior of the denitration reactor 1. When adjusted to the appropriate height, the supply pipe 7 transports, so that the spray pipe 6 sprays the reducing agent. Then, the user starts the rotating motor 82, the rotating motor 82 drives the driving gear 83 to rotate, the driving gear 83 rotates to drive the driven gear 84 to rotate, and the driven gear 84 rotates to drive the rotating seal joint 5 to rotate, which can increase the spraying range of the reducing agent, enable the flue gas to fully react with the reducing agent, effectively improve the denitration efficiency, and thus achieve the effect of high-efficiency denitration.

[0036] In summary: For this high-efficiency SNCR denitration device, through the combined use of the denitration reactor 1, the support plate 2, the lifting assembly 3, the driving motor 31, the screw 32, the nut block 33, the general assembly frame 4, the rotating seal joint 5, the spray pipe 6, the supply pipe 7, the rotating assembly 8, the transmission box 81, the rotating motor 82, the driving gear 83 and the driven gear 84, the problem that in the spraying of the reducing agent by the spray gun, it can only be lifted and sprayed, the spraying position is relatively single, it cannot spray multiple positions on the inner wall of the reactor, and there is still the problem of uneven spraying is solved.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency SNCR denitration device, comprising a denitration reactor (1), characterized in that: A support plate (2) is fixedly connected to the right side of the denitration reactor (1), a lifting assembly (3) is arranged on the top of the support plate (2), a general assembly frame (4) is arranged on the top of the denitration reactor (1), a rotary sealing joint (5) is fixedly installed on the top of the general assembly frame (4), the bottom of the rotary sealing joint (5) is connected to an injection pipe (6), the top of the rotary sealing joint (5) is connected to a supply pipe (7), and a rotary assembly (8) is arranged on the top of the general assembly frame (4).

2. The high-efficiency SNCR denitration device according to claim 1 is characterized in that: The lifting assembly (3) comprises a transmission motor (31), the transmission motor (31) being fixedly connected to the top of the support plate (2), the output end of the transmission motor (31) being fixedly connected to a screw rod (32), the surface of the screw rod (32) being threadedly connected to a screw block (33), and the screw block (33) being fixedly connected to the surface of the assembly frame (4).

3. The high-efficiency SNCR denitration device according to claim 1 is characterized in that: The rotating assembly (8) comprises a transmission box (81), the transmission box (81) being fixedly connected to the top of the assembly frame (4), a rotating motor (82) being fixedly installed inside the transmission box (81), an output end of the rotating motor (82) passing through the bottom of the assembly frame (4) and being fixedly connected to a transmission gear (83), and a driven gear (84) meshing with the transmission gear (83) being fixedly connected to the bottom of the surface of the rotating sealing joint (5).

4. The high-efficiency SNCR denitration device according to claim 2 is characterized in that: The four corners of the top of the support plate (2) are fixedly connected to limit rods (9), and both sides of the screw block (33) are fixedly connected to limit blocks (10) that are slidably connected to the limit rods (9).

5. The high-efficiency SNCR denitration device according to claim 4 is characterized in that: A protective ring (11) is fixedly connected to the top of the limiting rod (9), and the number of the protective rings (11) is several.

6. The high-efficiency SNCR denitration device according to claim 3 is characterized in that: The surface of the transmission box (81) is provided with heat dissipation openings (12), and the number of the heat dissipation openings (12) is a plurality.

7. The high-efficiency SNCR denitration device according to claim 3 is characterized in that: A protective net (13) is fixedly mounted on the left side of the transmission box (81), and the protective net (13) is used in conjunction with the heat dissipation port (12).

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