Row type soot blowing treatment mechanism for high-dust denitration catalyst in silicon industry

Abstract

The utility model discloses a row type soot blowing treatment mechanism for a high-dust denitration catalyst in the silicon industry, belongs to the technical field of soot cleaning equipment, and aims to solve the technical problem of inconvenience in soot cleaning of the high-dust denitration catalyst in the silicon industry in the prior art. The row type soot blowing treatment mechanism for the high-dust denitration catalyst in the silicon industry comprises an air pipe, the air pipe is horizontally arranged, one end of the air pipe is closed, a fan is assembled at the other end of the air pipe, a plurality of air blowing rakes are assembled at the bottom of the air pipe, each air blowing rake is of a flat cone-shaped structure, and the air blowing rakes are hollow and communicated with the air pipe. A plurality of blowing nozzles communicated with the internal space of the blowing rake are assembled at the bottom of the blowing rake; a plurality of flow dividing pieces are arranged at the top position in the air blowing rake. The row type soot blowing treatment mechanism for the high-dust denitration catalyst in the silicon industry is simple and reasonable in overall structure, the soot blowing force on the denitration catalyst is enhanced while the soot cleaning uniformity on the denitration catalyst is improved, and the row type soot blowing treatment mechanism is more suitable for the soot cleaning treatment on the high-dust denitration catalyst in the silicon industry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ash removal equipment, and particularly relates to a high-dust denitration catalyst row type soot blowing treatment mechanism for the silicon industry. BACKGROUND

[0002] In the silicon industry, the denitration process is crucial for reducing nitrogen oxide emissions and protecting the environment. However, the flue gas generated during silicon smelting often contains high concentrations of fine and sticky dust particles. Additionally, the denitration catalyst in the silicon industry typically needs to operate at high temperatures, which causes these particles to easily deposit on the surface of the catalyst and form a difficult-to-remove ash layer.

[0003] Traditional soot removal methods, such as steam soot blowing and acoustic soot blowing, face many limitations in the silicon industry. Specifically, while steam soot blowing is effective, it has high energy consumption and potential wear and tear on the catalyst. Acoustic soot blowing may not be effective due to limited sound wave propagation, especially in high-dust environments. Therefore, it is particularly important to develop a soot removal treatment mechanism suitable for the silicon industry that can achieve uniform soot blowing. To this end, the present application proposes a high-dust denitration catalyst row type soot blowing treatment mechanism for the silicon industry. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present utility model is to provide a high-dust denitration catalyst row type soot blowing treatment mechanism for the silicon industry, aiming to solve the technical problem of inconvenient soot removal of high-dust denitration catalyst in the silicon industry under the prior art.

[0005] TECHNICAL SOLUTION

[0006] To solve the above technical problems, the present utility model provides a high-dust denitration catalyst row type soot blowing treatment mechanism for the silicon industry, which comprises a wind pipe. The wind pipe is horizontally arranged, with one end closed and the other end equipped with a fan. The bottom of the wind pipe is equipped with multiple air blowing rakes. The air blowing rake is designed in a flat cone shape, with an internal cavity and a communication with the wind pipe. The bottom of the air blowing rake is equipped with multiple air blowing nozzles that communicate with the internal space of the air blowing rake. The top of the air blowing rake is equipped with multiple flow distribution fins that are distributed in a fan shape from top to bottom.

[0007] Preferably, the top end of the air blowing rake is provided with a connecting ring seat, and a connecting pipe is vertically connected to the connecting ring seat. The top end of the connecting pipe is provided with a flange plate that is fixedly connected to the wind pipe.

[0008] Preferably, the connecting pipe and the air blowing rake are designed in a flat shape in the same direction.

[0009] Preferably, the fan comprises a housing assembled at the end of the wind pipe. The housing is provided with a through hole at the end away from the wind pipe. The housing is internally equipped with a fan.

[0010] Preferably, a partition net is further arranged in the shell, and the partition net is located on the side of the fan away from the air duct.

[0011] Preferably, a gas collecting cover is connected between the air duct and the shell, the top of the end surface of the shell towards the air duct is provided with a ventilation slot communicated with the gas collecting cover, the cross-sectional area of the gas collecting cover gradually increases from the air duct towards the shell, and the lower surface of the shell is upwardly inclined at the end towards the air duct.

[0012] Preferably, a plurality of sleeves are arranged on the air duct, each of the sleeves is fixed with a shell cover at the top, the shell cover is embedded with a stopper, the top of the stopper is vertically connected with a suspender, and the suspender penetrates through the top wall of the shell cover.

[0013] Advantages

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a plurality of blowing rakes and a plurality of blowing nozzles arranged at the bottom of the blowing rake, the air duct is arranged at the top of the denitration catalyst, the blowing nozzles at the bottom of the plurality of blowing rakes are distributed towards the denitration catalyst, the fan in the shell is started to send air towards the air duct, then the air is guided and sent to the denitration catalyst by the plurality of blowing rakes and the blowing nozzles, the purpose of dust removal of the denitration catalyst can be achieved, the blowing rake is arranged as a flat cone structure, and a plurality of fan-shaped distribution shunts are arranged at the top of the blowing rake, the air can be uniformly blown to the denitration catalyst from the plurality of blowing nozzles, and the uniformity of dust removal of the denitration catalyst is improved.

[0016] In the utility model, the gas collecting cover is arranged between the air duct and the shell, the cross-sectional area of the gas collecting cover gradually increases from the air duct towards the shell, and the lower surface of the shell is upwardly inclined at the end towards the air duct, so that the air blown by the fan into the air duct can be compressed, and the dust blowing strength on the denitration catalyst is enhanced.

[0017] The silicon industry high-dust denitration catalyst row type dust blowing treatment mechanism has simple and reasonable overall structure, improves the uniformity of dust removal of the denitration catalyst, enhances the dust blowing strength on the denitration catalyst, combines uniform air blowing and dust removal with enhanced air blowing strength, significantly improves the dust removal efficiency, reduces the influence of accumulated dust on the catalyst efficiency, prolongs the service life of the catalyst, reduces the operation cost, improves the stability of the flue gas treatment system of the silicon industry, and provides an efficient and reliable dust removal solution for the denitration process of the silicon industry. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the structure of the fan in the present application.

[0021] Figure 3 It is a schematic diagram of the structure of the blowing rake in the present application.

[0022] Figure 4 It is a schematic diagram of the internal structure of the blowing rake in the present application.

[0023] Figure 5 It is a schematic diagram of the structure of the sleeve ring in the present application.

[0024] The marks in the drawings are: 1, air pipe; 2, fan; 3, blowing rake; 4, sleeve ring; 5, gas collecting cover; 6, shell; 7, air vent; 8, fan; 9, screen; 10, blowing nozzle; 11, connecting pipe; 12, flange; 13, splitter; 14, connecting ring seat; 15, shell cover; 16, stop block; 17, boom. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative effort fall within the scope of the present application.

[0026] The present embodiment provides a high-dust denitration catalyst exhaust blowing treatment mechanism in the silicon industry, and a schematic diagram of its structure is as shown in Figures 1-5As shown, it comprises a wind pipe 1, the wind pipe 1 is horizontally arranged, one end of the wind pipe 1 is closed, the other end of the wind pipe 1 is equipped with a fan 2, the bottom of the wind pipe 1 is equipped with a plurality of blowing rakes 3, the blowing rake 3 is arranged as a flat cone structure, the blowing rake 3 is hollow inside and communicated with the wind pipe 1, the bottom of the blowing rake 3 is equipped with a plurality of blowing nozzles 10 communicated with the inside space of the blowing rake 3; A plurality of flow dividing sheets 13 are arranged at the top of the blowing rake 3, and the plurality of flow dividing sheets 13 are distributed in a fan shape from top to bottom. After the wind pipe 1 is assembled on the top of the denitration catalyst, the blowing rakes 3 and the blowing nozzles 10 at the bottom of the blowing rake 3 will be distributed towards the denitration catalyst, and the fan 2 will send air to the wind pipe 1, and the air will be sent to the denitration catalyst through the blowing rakes 3 and the blowing nozzles 10, so as to achieve the purpose of cleaning the denitration catalyst. By arranging the blowing rake 3 as a flat cone structure and arranging a plurality of flow dividing sheets 13 in a fan shape from top to bottom at the top of the blowing rake 3, the air can be uniformly blown to the denitration catalyst from the blowing nozzles 10, the uniformity of cleaning the denitration catalyst is improved, and the phenomenon that the air blown to the denitration catalyst is not uniform enough to cause poor cleaning effect in some areas of the denitration catalyst is avoided.

[0027] In the embodiment, the top end of the blowing rake 3 is provided with a connecting ring seat 14, the connecting ring seat 14 is vertically connected with a connecting pipe 11, the top end of the connecting pipe 11 is provided with a flange plate 12 fixedly connected with the wind pipe 1, and the connecting pipe 11 and the blowing rake 3 are designed in a flat shape in the same direction, which is beneficial to the dispersion of the air sent by the wind pipe 1 to the blowing rake 3.

[0028] Further, in the embodiment, the fan 2 comprises a shell 6 assembled at the end of the wind pipe 1, the end face of the shell 6 away from the wind pipe 1 is provided with a through hole, and the shell 6 is internally provided with a fan 8, wherein the fan 8 can send air to the wind pipe 1, and the shell 6 is further internally provided with a screen 9 located on the side of the fan 8 away from the wind pipe 1, which is used to block mosquito impurities.

[0029] As a preferred technical solution in the embodiment, the wind pipe 1 is connected with a gas collecting cover 5, the top of the end face of the shell 6 towards the wind pipe 1 is provided with a ventilation slot 7 communicated with the gas collecting cover 5, the cross section of the gas collecting cover 5 gradually increases from the wind pipe 1 towards the shell 6, and the lower surface of the shell 6 towards the one end of the wind pipe 1 is upwardly inclined, so that the air blown by the fan 8 to the wind pipe 1 can be compressed, the blowing force to the denitration catalyst is enhanced, and the cleaning effect of the denitration catalyst is improved.

[0030] Further, in the embodiment, a plurality of sleeve rings 4 are sleeved on the wind pipe 1, the top of each sleeve ring 4 is fixedly provided with a shell sleeve 15, the shell sleeve 15 is embedded with a stop block 16, the top of the stop block 16 is vertically connected with a lifting rod 17, and the lifting rod 17 penetrates through the top wall of the shell sleeve 15, wherein the top end of the lifting rod 17 is provided with a thread, which is convenient for the installation of the wind pipe 1.

[0031] Working principle: in use, the air pipe 1 is assembled at the top of the denitration catalyst, the air blowing nozzles 10 at the bottom of the plurality of air blowing rakes 3 are distributed towards the denitration catalyst, the fan 8 in the shell 6 is started to send air towards the air pipe 1, then the air is guided and blown to the denitration catalyst by the plurality of air blowing rakes 3 and the air blowing nozzles 10, so that the purpose of cleaning the denitration catalyst is achieved, wherein the air blowing rake 3 is arranged in a flat cone structure, and a plurality of fan-shaped distribution of the flow distribution pieces 13 are arranged on the top of the air blowing rake 3, so that the air is uniformly blown from the plurality of air blowing nozzles 10 to the denitration catalyst, the uniformity of cleaning the denitration catalyst is improved, further, the gas collecting hood 5 is arranged between the air pipe 1 and the shell 6, the cross-sectional area of the gas collecting hood 5 gradually increases from the air pipe 1 towards the shell 6, and the lower surface of the shell 6 is inclined and distributed upwards towards one end of the air pipe 1, so that the air blown by the fan 8 is compressed in the air pipe 1, the blowing strength of the denitration catalyst is enhanced, and the high-dust denitration catalyst cleaning treatment in the silicon industry is suitable.

[0032] All the technical features in the embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A high-dust denitration catalyst row-type soot blowing treatment mechanism for the silicon industry, comprising a wind pipe (1), characterized in that: the wind pipe (1) is horizontally arranged, one end of the wind pipe (1) is closed, a fan (2) is arranged at the other end of the wind pipe (1), a plurality of blowing rakes (3) are arranged at the bottom of the wind pipe (1), the blowing rakes (3) are arranged in a flat cone structure, the blowing rakes (3) are hollow inside and in communication with the wind pipe (1), and a plurality of blowing nozzles (10) are arranged at the bottom of the blowing rakes (3) and in communication with the internal space of the blowing rakes (3); a plurality of flow dividing fins (13) are arranged at the top of the blowing rakes (3), and the flow dividing fins (13) are arranged in a fan shape from top to bottom. A connecting ring seat (14) is arranged at the top end of the blowing rakes (3), a connecting pipe (11) is vertically connected to the connecting ring seat (14), and a flange plate (12) is arranged at the top end of the connecting pipe (11) and fixedly connected to the wind pipe (1).

2. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 1, wherein, The connecting pipe (11) and the blowing rakes (3) are designed in a flat shape in the same direction.

3. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 2, wherein, The fan (2) comprises a shell (6) arranged at the end of the wind pipe (1), one end face of the shell (6) away from the wind pipe (1) is throughly arranged, and a fan (8) is arranged in the shell (6).

4. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 1, wherein, A separation net (9) is further arranged in the shell (6) and located on the side of the fan (8) away from the wind pipe (1).

5. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 4, characterized in that, A gas collecting cover (5) is connected between the wind pipe (1) and the shell (6), a ventilation slot (7) in communication with the gas collecting cover (5) is arranged at the top of the end face of the shell (6) towards the wind pipe (1), the cross-sectional area of the gas collecting cover (5) gradually increases from the wind pipe (1) towards the shell (6), and the lower surface of the shell (6) is upwardly inclined towards the end of the wind pipe (1).

6. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 4, characterized in that, A plurality of sleeve rings (4) are arranged on the wind pipe (1), a shell sleeve (15) is fixedly arranged at the top of each sleeve ring (4), a stop block (16) is embedded in the shell sleeve (15), a hanging rod (17) is vertically connected to the top of the stop block (16), and the hanging rod (17) penetrates through the top wall of the shell sleeve (15).

7. The high dust removal denitration catalyst row type soot blowing treatment mechanism of claim 1, wherein, ​

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