CN216864218U - Converter coal gas dust pelletizing system - Google Patents

Abstract

The application provides a converter gas dust removal system, which is sequentially provided with a converter, an evaporative cooler and an electric dust remover in series according to the gas flow direction, wherein the other end of the electric dust remover is respectively connected with a gas cabinet and a bleeding chimney through a switching station; the fine dust remover is arranged between the switching station and the diffusing chimney and comprises a spraying part and a pipe bundle dust removing part; the tube bank dust removal portion still includes degree of depth washing portion, and degree of depth washing portion includes hollow U-shaped pipe, still including setting up in the first annular hollow tube of hollow U-shaped pipe upper end, setting up in the second annular hollow tube of hollow U-shaped pipe lower extreme, and after liquid got into hollow U-shaped pipe, the second liquid outlet from the first liquid outlet of first annular hollow tube, second annular hollow tube flowed in the dust removal pipe respectively. This application is mainly to the flue gas when the non-recovery period of converter, sets up smart dust remover between switching station and diffusing chimney, and the converter is once removed dust the flue gas and is got into smart dust remover, through the high efficiency filter back of removing dust for the flue gas emission up to standard.

Description

Converter coal gas dust pelletizing system

Technical Field

The application relates to the technical field of dust removing equipment, in particular to a converter gas dust removing system.

Background

At present, two methods, namely a wet method and a dry method, are commonly adopted in the primary dust removal of converter steelmaking in the steel industry. The former is represented by an OG method, and adopts a two-stage Venturi wet method to capture dust in converter flue gas. The latter is represented by LT method, and adopts dry electric dust remover to trap dust in converter flue gas, wherein LT dry method core is electric dust remover.

With the increasing strictness of the environmental protection requirements of the steel industry, converter steelmaking by the LT method is difficult to meet new environmental protection index requirements, and part of smoke dust (such as slag splashing, furnace repairing, iron adding and the like) cannot be collected in an electric dust remover, so that the chimney emits yellow smoke in stages in a smelting period, and the yellow smoke is difficult to treat by depending on the electric dust remover body.

In the prior art, for example, a tube bundle type dust removing device and a gas-liquid separator based on centrifugal force separation are used, liquid drops entrained in an air flow are thrown to the periphery of a wall surface by the centrifugal action of a rotating air flow, fine liquid drops, fine dust particles, aerosol and other fine particulate matters in the flue gas collide with each other and are agglomerated and condensed into large liquid drops, and the large liquid drops are captured by a liquid film on the surface of a cyclone cylinder, so that the gas phase is separated and removed. After using a period of time, need utilize the sprinkler head of seting up on the wash pipe of installing at tube bank center to wash in the tube bank, but the cleaning performance of above-mentioned structure is limited, washs and can not thoroughly influence dust collector's dust removal effect, and more serious dirt particle can block up the tube bank and make its unable work can only manual disassembly carry out inside clearance.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a converter gas dust removal system, a converter, an evaporative cooler and an electric dust remover are sequentially arranged in series according to the gas flow direction, and the other end of the electric dust remover is respectively connected with a gas cabinet and a diffusion chimney through a switching station;

the fine dust collector is arranged between the switching station and the diffusing chimney; the fine dust collector comprises a shell, a spraying part and a tube bundle dust removing part are sequentially arranged in the shell from bottom to top, the tube bundle dust removing part comprises a plurality of dust removing tubes, a central shaft and rotational flow blades are arranged in the dust removing tubes, the rotational flow blades are uniformly distributed in annular spaces of the inner walls of the central shaft and the dust removing tubes, and a spraying head is arranged on the side wall of the central shaft;

the tube bundle dust removing part also comprises a deep cleaning part, the deep cleaning part is arranged above the dust removing tubes and comprises hollow U-shaped tubes, and the upper ends and the lower ends of two straight tubes of each hollow U-shaped tube are respectively provided with a first through hole and a second through hole; the deep cleaning part also comprises a first annular hollow pipe arranged at the upper end of the hollow U-shaped pipe and a second annular hollow pipe arranged at the lower end of the hollow U-shaped pipe; the lower end of the first annular hollow pipe is provided with a third through hole communicated with the first through hole, and the inner side wall of the first annular hollow pipe is provided with a first liquid outlet; and a fourth through hole communicated with the second through hole is formed in the upper end of the second annular hollow pipe, a second liquid outlet is formed in the inner side wall of the second annular hollow pipe, and after liquid enters the hollow U-shaped pipe, the liquid flows into the dust removal pipe from the first liquid outlet of the first annular hollow pipe and the second liquid outlet of the second annular hollow pipe respectively.

Further, the inner diameter of the first annular hollow pipe is smaller than that of the second annular hollow pipe.

Further, the first liquid outlet is arranged at the bottom end of the inner side wall of the first annular hollow pipe, and the lower end of the inner side wall of the first annular hollow pipe is obliquely arranged inwards to form a first flow blocking part;

the second liquid outlet set up in the bottom of second annular hollow tube inside wall, second annular hollow tube inside wall lower extreme is to the inboard slope setting to form second fender class portion.

Furthermore, the deep cleaning part also comprises a first flow guide part and a second flow guide part, the first flow guide part is arranged at the lower end of the first annular hollow pipe, and liquid flowing out of the first liquid outlet flows to the dust removal pipe through the first flow guide part; the second flow guide part is arranged at the lower end of the second annular hollow pipe, and liquid flowing out of the second liquid outlet flows to the dust removal pipe through the second flow guide part.

Further, the first flow guide part is a first hollow pipe, and the upper end of the first hollow pipe is connected with the bottom end of the inner side wall of the first annular hollow pipe; the second flow guide part is a second hollow pipe, and the upper end of the second hollow pipe is connected with the bottom end of the inner side wall of the second annular hollow pipe.

Furthermore, the diameter of the first hollow pipe is smaller than that of the second hollow pipe, the outer wall of the second hollow pipe is attached to the inner wall of the dust removal pipe, and the first hollow pipe is located in the annular space.

Furthermore, a liquid inlet is arranged at the bent pipe of the hollow U-shaped pipe.

Further, the converter top is passed through the vaporization cooling channel and is linked to each other with the evaporative cooler, and the electrostatic precipitator is kept away from the one end of evaporative cooler passes through the fan and links to each other with switching station, switching station is including parallelly connected recovery bell-shaped valve and diffuse bell-shaped valve, the one end that the fan was kept away from to the recovery bell-shaped valve is passed through the coal gas cooler and is linked to each other with the gas chamber, diffuse bell-shaped valve and keep away from the one end of fan and pass through fine dust remover and diffuse the chimney and link to each other.

Further, the spraying part comprises a main pipeline and a plurality of branch pipelines communicated with the main pipeline, the branch pipelines are arranged in the shell, the branch pipelines are arranged below the tube bundle dust removing part, and the lower ends of the branch pipelines are provided with spraying heads.

Further, the lower end of the shell is provided with an air inlet, the lower end of the air inlet is provided with a water storage tank, a filter plate is further arranged between the air inlet and the water storage tank, and one end, far away from the branch pipeline, of the main pipeline is communicated with the water storage tank.

The beneficial effect of this application is as follows:

1. the application mainly aims at the smoke of the converter in the non-recovery period, a fine dust remover is arranged between the switching station and the diffusing chimney, and the smoke generated by primary dust removal of the converter enters the fine dust remover and is subjected to efficient filtering and dust removal, so that the smoke is discharged up to the standard;

2. according to the cleaning device, the deep cleaning part is arranged above the dust removing pipe and is matched with the spraying head arranged in the dust removing pipe to realize deep cleaning of the dust removing pipe, the structure of the deep cleaning part realizes that cleaning liquid entering from the hollow U-shaped pipe flows upwards from the first annular hollow pipe and flows downwards from the second annular hollow pipe respectively, firstly, the two annular hollow pipes are better arranged and are matched with the circular dust removing pipe, so that normal outflow of gas cannot be influenced, and on the other hand, the outflow liquid flows to the dust removing pipe at 360 degrees, and the cleaning is more comprehensive and thorough; secondly, the two annular hollow pipes have height difference, and the flowing cleaning liquid sequentially acts on the dust removal pipe to enable the cleaning to be more thorough, so that the cleaning efficiency is improved;

3. the cleaning device is simple in structure arrangement, a whole row of dust removing pipes can be cleaned by using one U-shaped pipe, and a plurality of parts can be simply installed through one U-shaped pipe, so that the installation space is effectively saved;

4. according to the cleaning device, the sizes of the two annular hollow pipes are adjusted, so that cleaning liquid flowing out of the two annular hollow pipes respectively acts on different positions of the dust removing pipe, and the inner wall of the dust removing pipe and the swirl vanes are effectively cleaned;

5. the first flow blocking part and the second flow blocking part are arranged to provide a flow blocking effect for the flowing liquid, so that the liquid flows downwards, and the cleaning efficiency of the dust removal pipe is improved;

6. the first flow guide part and the second flow guide part are used for enabling the flowing liquid to flow down along the flow guide parts, so that a good flow guide effect is achieved, and the cleaning efficiency of the dust removal pipe is further improved; in addition, the flow guide part can also play a role in positioning for the installation of the annular hollow pipe;

7. according to the dust removal pipe, the size and the position of the flow guide part can be used for realizing that the flowing-out liquid acts on different positions of the dust removal pipe, so that the cleaning effect is improved;

8. according to the application, gas entering the fine dust collector sequentially passes through the spraying part and the tube bundle dust removing part, the spraying part can be provided with a plurality of branch pipelines, each branch pipeline is arranged at different heights, dust removal is synchronously performed in multiple layers, and the dust removal effect is greatly improved;

9. through setting up the filter in this application with the interception of dirt particle, liquid flows into the storage water tank and can realize the cyclic utilization of liquid.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of a converter gas dust removal system according to the present application;

FIG. 2 is a schematic structural diagram of a fine dust collector in the present application;

FIG. 3 is a schematic top view of the tube bundle dust removing part of the present application;

FIG. 4 is a schematic view of a structure of the dust removal pipe and the deep cleaning part;

FIG. 5 is an exploded cross-sectional view of a deep cleaning section of the present application;

FIG. 6 is a perspective view of a second annular hollow tube of the present application.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-6, in the converter gas dust removal system of the present embodiment, a converter 1, an evaporative cooler 2, and an electric dust remover 3 are sequentially and serially connected according to a gas flow direction, and the other end of the electric dust remover 3 is respectively connected to a gas cabinet 4 and a blow-off chimney 5 through a switching station; the device also comprises a fine dust remover 6, wherein the fine dust remover 6 is arranged between the switching station and the diffusing chimney 5; the fine dust remover 6 comprises a shell 61, a spraying part 62 and a tube bundle dust removing part 63 are sequentially arranged in the shell 61 from bottom to top, the tube bundle dust removing part 63 comprises a plurality of dust removing tubes 631, a central shaft 6311 and swirl blades 6312 are arranged in the dust removing tubes 631, the swirl blades 6312 are uniformly distributed in annular spaces of the central shaft 6311 and the inner walls of the dust removing tubes 631, and a spraying head 6313 is arranged on the side wall of the central shaft 6311; the tube bundle dust removing part 63 further comprises a deep cleaning part 7, the deep cleaning part 7 is arranged above the dust removing tubes 631, the deep cleaning part 7 comprises a hollow U-shaped tube 71, and the upper end and the lower end of two straight tubes of the hollow U-shaped tube 71 are respectively provided with a first through hole 711 and a second through hole 712; the deep cleaning part 7 also comprises a first annular hollow pipe 72 arranged at the upper end of the hollow U-shaped pipe 71 and a second annular hollow pipe 73 arranged at the lower end of the hollow U-shaped pipe 71; the lower end of the first annular hollow pipe 72 is provided with a third through hole 721 communicated with the first through hole 711, and the inner side wall of the first annular hollow pipe 72 is provided with a first liquid outlet 722; the upper end of the second annular hollow pipe 73 is provided with a fourth through hole 731 communicated with the second through hole 712, the inner side wall of the second annular hollow pipe 73 is provided with a second liquid outlet 732, after the liquid enters the hollow U-shaped pipe 71, the liquid respectively flows into the dust removing pipe 631 from the first liquid outlet 722 of the first annular hollow pipe 72 and the second liquid outlet 732 of the second annular hollow pipe 73, and a liquid inlet 713 is arranged at the bent pipe of the hollow U-shaped pipe 71.

It can be understood that the top of the converter 1 is connected with the evaporative cooler 2 through the evaporative cooling channel 101, the end of the electric dust remover 3 far away from the evaporative cooler 2 is connected with the switching station through the fan 102, the switching station comprises a recovery bell valve 103 and a discharge bell valve 104 which are connected in parallel, the end of the recovery bell valve 103 far away from the fan 102 is connected with the gas holder 4 through the gas cooler 106, and the end of the discharge bell valve 104 far away from the fan 102 is connected with the discharge chimney 5 through the fine dust remover 6.

It will be appreciated that an ash bin 105 is provided below both the evaporative cooler 2 and the electrical precipitator 3.

It can be understood that, as shown in fig. 2, the spraying part 62 includes a main pipe 621, and a plurality of branch pipes 622 communicated with the main pipe 621, the branch pipes 622 are disposed in the shell 61, the branch pipes 622 are disposed below the tube bundle dust removing part 63, and the lower ends of the branch pipes 622 are provided with spraying heads 623.

It can be understood that, in order to realize the recycling of the liquid, the lower end of the housing 61 is provided with an air inlet 611, the lower end of the air inlet 611 is provided with a water storage tank 612, a filter plate 613 is further arranged between the air inlet 611 and the water storage tank 612, and one end of the main pipe 621, which is far away from the branch pipe 622, is communicated with the water storage tank 612.

It can be understood that the first outlet 722 may be a plurality of through holes or a through slot uniformly formed on the inner side wall of the first annular hollow tube 72.

In the embodiment, when the converter 1 is used for steelmaking, generated gas sequentially passes through the vaporization cooling channel 101, the evaporation cooler 2 and the electric dust remover 3 for dust removal treatment, when in a gas recovery period, primary dust removal flue gas (main component CO) of the converter 1 passes through the recovery bell valve 103 and then passes through the gas cooler 106 to be recycled by the gas holder 4, and when in a gas non-recovery period, primary dust removal flue gas of the converter 1 passes through the diffusion bell valve 104 and then passes through the fine dust remover 6 to be discharged by the diffusion chimney 5.

The primary dedusting flue gas of the converter 1 enters the shell 61 from the gas inlet 611, the primary dedusting is carried out by the liquid sprayed out from the plurality of layers of spray headers 623, the falling dust particles are intercepted by the filter plates 613, the liquid falls into the water storage tank 612, and the liquid in the water storage tank 612 can enter the branch pipeline 622 from the main pipeline 621 and is sprayed out from the spray headers 623; the gas after the preliminary dust removal continues to flow upwards and enters the tube bundle dust removal part 63, in the tube bundle dust removal part 63, the gas enters the dust removal pipe 631, under the action of the cyclone blades 6312, the particles and the gas phase are separated due to centrifugal force in the gas flow, and the gas after the dust removal flows upwards and flows to the emission chimney 5 from the exhaust port.

When the dust removal pipes 631 in the pipe bundle dust removal part 63 accumulate certain particles, the particles need to be cleaned, otherwise the dust removal pipes 631 are blocked to influence the subsequent dust removal work; if the dust removal pipe 631 has less accumulated particulate matter, cleaning liquid is input into the central shaft 6311 and sprayed out through the spraying head 6313 to perform conventional cleaning on the inner wall of the dust removal pipe 631; however, if the dust removing tube 631 has more particles and the cleaning effect by the spraying head 6313 is poor, the deep cleaning part 7 in this embodiment may be activated, the cleaning liquid enters from the liquid inlet 713 and fills the hollow U-shaped tube 71, and a part of the cleaning liquid flows into the first annular hollow tube 72 through the first through hole 711 and the third through hole 721 and is discharged from the first liquid outlet 722 for cleaning the dust removing tube 631; the other part of the cleaning liquid flows into the second annular hollow pipe 73 through the second through hole 712 and the fourth through hole 731, is discharged from the second liquid outlet 732 to clean the dust removal pipe 631, washes the dust removal pipe 631 from top to bottom, washes dust particles in the dust removal pipe 631 down, and flows to the bottom from the annular space after washing;

the installation of the deep cleaning part 7 in this embodiment is simple, the second annular hollow pipe 73 is erected above the pipe orifice of each dust removing pipe 631, the hollow U-shaped pipe 71 is erected on the second annular hollow pipe 73, the first annular hollow pipe 72 is erected on the hollow U-shaped pipe 71, and the installation can be completed.

In another embodiment, the first annular hollow tube 72 has an inner diameter that is less than the inner diameter of the second annular hollow tube 73.

If the dust removal pipe 631 inner wall particulate matter is more, first annular hollow tube 72, second annular hollow tube 73 can be concentrated and wash the inner wall, if the particulate matter all need wash on inner wall and swirl vane 6312, can be through the internal diameter of adjusting first annular hollow tube 72 this moment, reduce the internal diameter and make the liquid that flows down fall on swirl vane 6312, can fix a position the washing to inner wall or swirl vane 6312 respectively, and the flexibility ratio is better, can adjust according to different situation.

In another embodiment, as shown in fig. 5, the first liquid outlet 722 is disposed at the bottom end of the inner side wall of the first annular hollow tube 72, and the lower end of the inner side wall of the first annular hollow tube 72 is disposed to be inclined inward to form a first flow blocking portion 723; the second liquid outlet 732 is disposed at a bottom end of an inner sidewall of the second annular hollow tube 73, and a lower end of the inner sidewall of the second annular hollow tube 73 is disposed to be inclined inward to form a second blocking portion 733.

When the liquid cleaning device is used in the embodiment, the liquid flowing out of the first liquid outlet 722 passes through the first flow blocking portion 723, and the liquid flowing out of the second liquid outlet 732 passes through the second flow blocking portion 733, so that the flow direction can be effectively adjusted, the liquid can flow downwards without splashing, and the cleaning effect on the dust removing pipe 631 is improved.

In another embodiment, as shown in fig. 5 and 6, the deep cleaning part 7 further includes a first flow guiding part 724 and a second flow guiding part 734, the first flow guiding part 724 is disposed at the lower end of the first annular hollow tube 72, and the liquid flowing out from the first liquid outlet 722 flows to the dust removing tube 631 through the first flow guiding part 724; the second flow guide portion 734 is disposed at a lower end of the second annular hollow tube 73, and the liquid flowing out of the second liquid outlet 732 flows to the dust removing tube 631 through the second flow guide portion 734.

As can be appreciated, the first guiding portion 724 is a first hollow tube, and the upper end of the first hollow tube is connected to the bottom end of the inner side wall of the first annular hollow tube 72; the second guiding portion 734 is a second hollow tube, and the upper end of the second hollow tube is connected to the bottom end of the inner side wall of the second annular hollow tube 73.

Under the action of the flow guide part, the liquid flowing out of the first liquid outlet 722 flows downwards along the inner wall of the first hollow pipe, and the liquid flowing out of the second liquid outlet 732 flows downwards along the inner wall of the second hollow pipe, so that a good flow guide effect is achieved; in addition, the guiding part is also provided to facilitate the positioning and installation of the first annular hollow pipe 72 on the hollow U-shaped pipe 71 and the positioning and installation of the second annular hollow pipe 73 and each dust removing pipe 631.

It can be understood that the diameter of the first hollow tube is smaller than that of the second hollow tube, the outer wall of the second hollow tube is attached to the inner wall of the dust removing tube 631, and the first hollow tube is located in the annular space.

Through adjusting the diameters of the first hollow pipe and the second hollow pipe, the inner wall of the dust removing pipe 631 or the swirl vanes 6312 can be selectively washed according to different conditions.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A converter gas dust removal system is characterized in that a converter, an evaporative cooler and an electric dust remover are sequentially arranged in series according to the gas flow direction, and the other end of the electric dust remover is respectively connected with a gas cabinet and a bleeding chimney through a switching station;

the fine dust collector is arranged between the switching station and the diffusing chimney; the fine dust collector comprises a shell, a spraying part and a tube bundle dust removing part are sequentially arranged in the shell from bottom to top, the tube bundle dust removing part comprises a plurality of dust removing tubes, a central shaft and rotational flow blades are arranged in the dust removing tubes, the rotational flow blades are uniformly distributed in annular spaces of the inner walls of the central shaft and the dust removing tubes, and a spraying head is arranged on the side wall of the central shaft;

the tube bundle dust removing part also comprises a deep cleaning part, the deep cleaning part is arranged above the dust removing tubes and comprises hollow U-shaped tubes, and the upper ends and the lower ends of two straight tubes of the hollow U-shaped tubes are respectively provided with a first through hole and a second through hole; the deep cleaning part also comprises a first annular hollow pipe arranged at the upper end of the hollow U-shaped pipe and a second annular hollow pipe arranged at the lower end of the hollow U-shaped pipe; the lower end of the first annular hollow pipe is provided with a third through hole communicated with the first through hole, and the inner side wall of the first annular hollow pipe is provided with a first liquid outlet; and a fourth through hole communicated with the second through hole is formed in the upper end of the second annular hollow pipe, a second liquid outlet is formed in the inner side wall of the second annular hollow pipe, and liquid flows into the dust removal pipe from the first liquid outlet of the first annular hollow pipe and the second liquid outlet of the second annular hollow pipe after entering the hollow U-shaped pipe.

2. The system of claim 1, wherein the first annular hollow tube has an inner diameter less than an inner diameter of the second annular hollow tube.

3. The system for removing dust from converter gas as claimed in claim 1, wherein the first liquid outlet is disposed at a bottom end of an inner side wall of the first annular hollow tube, and a lower end of the inner side wall of the first annular hollow tube is disposed to be inclined inward to form a first flow blocking portion;

the second liquid outlet set up in the bottom of second annular hollow tube inside wall, second annular hollow tube inside wall lower extreme is to the inboard slope setting to form second fender class portion.

4. The system for removing dust from converter gas as claimed in claim 1, wherein the deep cleaning part further comprises a first flow guiding part and a second flow guiding part, the first flow guiding part is disposed at the lower end of the first annular hollow tube, and liquid flowing out of the first liquid outlet flows to the dust removing tube through the first flow guiding part; the second flow guide part is arranged at the lower end of the second annular hollow pipe, and liquid flowing out of the second liquid outlet flows to the dust removal pipe through the second flow guide part.

5. The system for removing dust from converter gas as claimed in claim 4, wherein the first flow guiding part is a first hollow pipe, and the upper end of the first hollow pipe is connected with the bottom end of the inner side wall of the first annular hollow pipe; the second flow guide part is a second hollow pipe, and the upper end of the second hollow pipe is connected with the bottom end of the inner side wall of the second annular hollow pipe.

6. The system of claim 5, wherein the diameter of the first hollow tube is smaller than the diameter of the second hollow tube, the outer wall of the second hollow tube is attached to the inner wall of the dust removal tube, and the first hollow tube is located in the annular space.

7. The system of claim 5, wherein the bend of the hollow U-shaped pipe is provided with a liquid inlet.

8. The system for removing dust from converter gas according to claim 1, wherein the top of the converter is connected with an evaporative cooler through a vaporization cooling channel, one end of the electric dust remover, which is far away from the evaporative cooler, is connected with a switching station through a fan, the switching station comprises a recovery bell-shaped valve and a diffusion bell-shaped valve which are connected in parallel, one end of the recovery bell-shaped valve, which is far away from the fan, is connected with a gas tank through the gas cooler, and one end of the diffusion bell-shaped valve, which is far away from the fan, is connected with a diffusion chimney through a fine dust remover.

9. The system of claim 1, wherein the spraying portion comprises a main pipe and a plurality of branch pipes communicated with the main pipe, the branch pipes are disposed in the housing, the branch pipes are disposed below the tube bundle dust removing portion, and the lower ends of the branch pipes are provided with spraying heads.

10. The system of claim 9, wherein the lower end of the housing is provided with an air inlet, the lower end of the air inlet is provided with a water storage tank, a filter plate is further disposed between the air inlet and the water storage tank, and an end of the main pipe, which is far away from the branch pipe, is communicated with the water storage tank.

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