Dust collecting and removing device utilizing flue gas heat lift force

Abstract

The utility model provides a dust collection and removal device utilizing flue gas heat lift, which comprises an electric removal module support positioned above a steel ladle, an efficient electric dust remover for removing dust is mounted at the top of the electric removal module support, and a walking component for moving the support is further arranged at the bottom of the electric removal module support. A matched electric control assembly used for controlling the efficient electric dust remover and the walking assembly to work is arranged on any side of the top of the electric dust removal module support, and sealing assemblies used for collecting dust are arranged in the electric dust removal module support and located on the side face and the top of the steel ladle. The utility model solves the problems of huge equipment and high operation cost in the prior art. According to the utility model, equipment composition, investment and operation power consumption can be reduced, and dust can be collected and removed by utilizing flue gas heat lift force.

Description

Technical Field

[0001] The utility model belongs to the field of environmental dust removal at high-temperature dust-containing flue gas points in the metallurgical industry, and particularly relates to a dust collection and removal device utilizing the thermal lift of flue gas. Background Art

[0002] High-temperature dust-containing flue gas is generated at points such as the continuous casting ladle turntable, flame cutting machine, and ladle hot repair in the metallurgical industry. The temperature of these waste gases is as high as 400 - 1000°C, and in some cases, it can reach up to 400 - 1000°C. It is difficult to control, and the flue gas is highly intermittent.

[0003] Traditional dust removal system equipment includes: dust collection hood, dust collection pipeline, fan (including motor), and chimney. The dust-containing flue gas needs to enter the dust removal system body through the dust collection hood and dust collection pipeline under the suction of the fan, and after the flue gas is purified, it is centrally discharged through the chimney.

[0004] This process route has problems such as high equipment investment cost, large equipment floor area, and high equipment operation energy consumption. In particular, it is difficult to re-arrange the dust collection pipeline in some old continuous casting workshops. Summary of the Invention

[0005] In order to overcome the defects of large equipment and high operation cost in the prior art, the utility model provides a dust collection and removal device that can reduce equipment composition, investment, and operation power consumption and utilize the thermal lift of flue gas.

[0006] The technical solution adopted by the utility model to achieve the above purpose is as follows:

[0007] A dust collection and removal device utilizing the thermal lift of flue gas includes an electrostatic precipitation module support located above the ladle. The top of the electrostatic precipitation module support is equipped with a high-efficiency electrostatic precipitator for dust removal. At the bottom of the electrostatic precipitation module support, there is also a traveling component for the movement of the support. On any side at the top of the electrostatic precipitation module support, there is a supporting electric control component for controlling the operation of the high-efficiency electrostatic precipitator and the traveling component. Inside the electrostatic precipitation module support, sealing components for dust collection are provided on both the side and the top of the ladle.

[0008] Further, the electrostatic precipitation module support is an inverted L-shaped support composed of a side support and a top support. The bottom of the side support is equipped with a bottom traveling component, and the bottom traveling component is located on the platform of the ladle. One side of the top support is connected to the top of the side support, and the other side of the top support is connected to the top traveling component through a connecting frame. The top traveling component is located on the support beam at the top of the factory building column, and the top support is located above the ladle and is equipped with a high-efficiency electrostatic precipitator.

[0009] Furthermore, guardrails are provided around the top of the top support, and the guardrails are connected to the top traveling component through a connecting frame on the side of the support beam.

[0010] Furthermore, the bottom walking assembly includes a slide rail located on the ladle platform, and the top walking assembly includes a slide rail located on the support beam. A walking wheel is provided in the slide rail, and the walking wheel is driven to move by a walking motor.

[0011] Preferably, the supporting electric control assembly includes a controller, a control end of a high-efficiency electrostatic precipitator, and a control end of a walking motor. The controller is electrically connected to the control end of the high-efficiency electrostatic precipitator and the control end of the walking motor respectively.

[0012] Further, the sealing assembly includes a sealing box body made of high-temperature resistant steel plates and in an inverted stepped shape on the side of the ladle, and asbestos cloth or other high-temperature resistant soft materials surrounded on the support.

[0013] Preferably, the height of the high-efficiency electrostatic precipitator from the ladle is 2-3 meters, and the dust collection area of the high-efficiency electrostatic precipitator is 4-5 times that of the ladle area.

[0014] For the dust-containing flue gas generated at workstations such as the continuous casting tundish, intermediate ladle, flame cutting machine, and ladle hot repair in steelmaking, its temperature is relatively high, and the flue gas itself has a thermal lift force for upward movement. The flue gas flow velocity can generally reach 2-3 m / s or even higher. The utility model utilizes the thermal lift force of the flue gas itself as the power source for collecting the dust-containing flue gas, and arranges a high-efficiency dust collector above the dust-containing flue gas to complete the flue gas purification. The utility model integrates the dust collection hood and the dust collector. The flue gas enters the upper dust collector under the action of its own thermal lift force, and is directly discharged after the flue gas purification is completed. The utility model omits facilities such as dust collection pipes, fans, motors, and chimneys, and has the advantages of low equipment investment, small equipment footprint, no need to consider the layout of dust collection pipes, and low operation energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present utility model with reference to the drawings, wherein:

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a three-dimensional structural diagram of the present utility model;

[0018] Description of the reference numerals: 1, ladle; 2, high-efficiency electrostatic precipitator; 3, supporting electric control assembly; 4, electric dust removal module support; 41, side support; 42, top support; 5, sealing box body; 6, connecting frame; 7, top walking assembly; 8, bottom walking assembly; 9, high-temperature dust-containing flue gas; 10, purified flue gas; 11, slide rail; 12, guardrail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] As Figures 1 to 2 shown, the dust collection and removal device using the flue gas thermal lift force in this embodiment includes an electric dust removal module support 4 located above the ladle 1. An efficient electric dust collector 2 for dust removal is installed at the top of the electric dust removal module support 4. A traveling assembly for moving the electric dust removal module support 4 is also provided at the bottom of the electric dust removal module support 4. A supporting electric control assembly 3 for controlling the operation of the efficient electric dust collector 2 and the traveling assembly is arranged on any side at the top of the electric dust removal module support 4. Sealing assemblies for dust collection are provided on both the side and the top of the ladle 1 inside the electric dust removal module support 2.

[0021] Furthermore, the electric dust removal module support is an inverted L-shaped support composed of a side support 41 and a top support 42. A bottom traveling assembly 8 is installed at the bottom of the side support 41. The bottom traveling assembly 8 is located on the platform of the ladle 1. One side of the top support 42 is connected to the top of the side support 41, and the other side of the top support 42 is connected to the top traveling assembly 7 through a connecting frame 6. The top traveling assembly 7 is located on the supporting beam at the top of the factory building column. The efficient electric dust collector 2 is installed above the ladle on the top support 42.

[0022] Even further, guardrails 12 are provided around the top of the top support 42. The guardrails 12 are connected to the top traveling assembly 7 through a connecting frame 6 on the side of the supporting beam.

[0023] Even further, the bottom traveling assembly 8 includes a slide rail 11 located on the ladle platform, and the top traveling assembly includes a slide rail located on the supporting cross beam. Traveling wheels are provided inside the slide rail, and the traveling wheels are driven to move by a traveling motor.

[0024] Preferably, the supporting electric control assembly 3 includes a controller, an electric control end of the efficient electric dust collector, and an electric control end of the traveling motor. The controller is electrically connected to the electric control end of the efficient electric dust collector and the electric control end of the traveling motor respectively.

[0025] Furthermore, the sealing assembly includes a sealing box body 5 composed of high-temperature resistant steel plates in an inverted stepped shape located on the side of the ladle and asbestos cloth or other high-temperature resistant soft materials surrounding the support, so as to better collect dust and prevent the spread of soot.

[0026] Preferably, the height of the efficient electric dust collector 2 from the ladle 1 is 2 - 3 meters, and the dust collection area of the efficient electric dust collector 2 is 4 - 5 times the area of the ladle 1, so that the efficient electric dust collector 2 can collect dust and remove dust more effectively.

[0027] Preferably, the high-efficiency electrostatic precipitator 2 adopts an existing general model.

[0028] The utility model is used to remove the high-temperature dusty flue gas generated at workstations such as the tundish, intermediate ladle, flame cutting machine, and ladle hot repair in steelmaking continuous casting. Since the temperature of the flue gas itself is relatively high, the flue gas has an upward thermal lift force by itself, and the flue gas flow velocity can generally reach 2-3 m / s or even higher. The utility model uses the self-thermal lift force of the flue gas as the power source for collecting the dusty flue gas. A high-efficiency electrostatic precipitator 2 is installed above the high-temperature dusty flue gas 9 through an electrostatic precipitation module support. After the flue gas is purified by the high-efficiency electrostatic precipitator 2 to obtain the purified flue gas 10, it is directly discharged; the utility model only needs to install an electrostatic precipitation module support 4 on the existing platform, and then install a high-efficiency electrostatic precipitator 2, a supporting electric control component 3, a sealing component, and a walking component on the electrostatic precipitation module support 4, without other equipment. Therefore, it has the advantages of reducing the equipment investment cost, small equipment footprint, no need to consider the layout of dust collection pipelines, and low operation energy consumption; a walking component is installed at the bottom of the electrostatic precipitation module support, which is convenient for moving the support during installation.

[0029] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the scope of the present invention.

Claims

1. A dust collecting and removing device utilizing the thermal lift of flue gas, characterized in that: It includes an electrostatic precipitator module bracket located above the ladle, a high-efficiency electrostatic precipitator for dust removal is installed on the top of the electrostatic precipitator module bracket, a walking assembly for moving the bracket is also provided at the bottom of the electrostatic precipitator module bracket, and matching electric control components for controlling the operation of the high-efficiency electrostatic precipitator and the walking assembly are arranged on either side of the top of the electrostatic precipitator module bracket, and sealing components for collecting dust are provided on the sides and top of the ladle in the electrostatic precipitator module bracket.

2. The dust collecting and removing device using the thermal lift of flue gas according to claim 1 is characterized in that: The electrostatic precipitator module bracket is an inverted L-shaped bracket consisting of a side bracket and a top bracket. A bottom walking assembly is installed at the bottom of the side bracket, and the bottom walking assembly is located on the platform of the ladle. One side of the top bracket is connected to the top of the side bracket, and the other side of the top bracket is connected to the top walking assembly through a connecting frame. The top walking assembly is located on the supporting beam at the top of the plant column, and the top bracket is located above the ladle and is equipped with a high-efficiency electrostatic precipitator.

3. The dust collecting and removing device using the thermal lift of flue gas according to claim 2 is characterized in that: The top of the top bracket is provided with guardrails around the periphery, and the guardrails are located on the side of the support beam and connected to the top walking assembly through a connecting frame.

4. The dust collecting and removing device using the thermal lift of flue gas according to claim 2 is characterized in that: The bottom traveling assembly comprises a slide rail located on the ladle platform, and the top traveling assembly comprises a slide rail located on the supporting crossbeam. Traveling wheels are arranged in the slide rail, and the traveling wheels are driven to move by a traveling motor.

5. The dust collecting and removing device using the thermal lift of flue gas according to claim 4 is characterized in that: The matching electric control component comprises a controller, a high-efficiency electric precipitator control end, and a travel motor control end. The controller is electrically connected to the high-efficiency electric precipitator control end and the travel motor control end respectively.

6. The dust collecting and removing device using the thermal lift of flue gas according to claim 1 is characterized in that: The sealing assembly comprises a sealing box body located on the side of the ladle and composed of high-temperature resistant steel plates in an inverted step shape, and asbestos cloth or high-temperature resistant soft material enclosed on a bracket.

7. The dust collecting and removing device using the thermal lift of flue gas according to claim 1 is characterized in that: The high-efficiency electrostatic precipitator is 2-3 meters away from the ladle, and the dust collecting area of ​​the high-efficiency electrostatic precipitator is 4-5 times the area of ​​the ladle.

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