Dust removal device for blast furnace ironmaking

Abstract

The utility model belongs to the technical field of ironmaking dust removal, and particularly relates to a blast furnace ironmaking dust removal device. Comprising a circular box, a supporting mechanism is arranged at the bottom of the circular box, pipelines fixedly communicate with the left side of the bottom and the left side of the top of the circular box, a discharge pipe fixedly communicates with the right side of the bottom of the circular box, and an opening is formed in the right side of the top of the circular box; the square mounting block is rotationally assembled in the circular box body; the mounting box body is fixedly mounted on the right side of the top of the circular box body and is matched with the opening in position; the telescopic end of the air cylinder extends into the mounting box body and is fixedly connected with the spraying mechanism; according to the utility model, the structure is simple, the design is reasonable, the two filter plates can be conveniently and alternately used during use, the influence on the dust removal efficiency due to long-time shutdown is effectively avoided, the used filter plates do not need to be cooled and disassembled when being cleaned, the spray mechanism can be used for directly flushing, and the operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of ironmaking dust removal technology, specifically relating to a dust removal device for blast furnace ironmaking. Background Technology

[0002] Blast furnace ironmaking is a continuous method for producing liquid pig iron. It is currently the most commonly used steel production method. During the ironmaking process, the blast furnace emits a large amount of particulate dust during the tapping of iron or slag, which can easily cause pollution to the working environment. Therefore, corresponding dust removal devices are used to filter the dust.

[0003] Existing dust removal devices mostly use filters to filter smoke and dust. Due to the high dust content, the filters need to be cleaned after a period of use. Cleaning the filters usually requires disassembling them, cleaning them, and then reinstalling them. The entire cleaning process is quite troublesome. Furthermore, because the dust particles in the iron tapping area are at a high temperature, the filters also have a certain temperature and need to cool down for a period of time before they can be disassembled and cleaned. During this period, the dust removal device needs to be shut down until the filters are reinstalled, which undoubtedly affects the dust removal efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a dust removal device for blast furnace ironmaking. During use, the two filter plates can be conveniently used alternately, effectively avoiding the impact of long-term shutdown on dust removal efficiency. When cleaning the used filter plates, there is no need to wait for them to cool down or disassemble them. They can be directly rinsed using the spray mechanism, making the operation convenient.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A dust removal device for blast furnace ironmaking, comprising

[0007] A circular box body, the bottom of which is provided with a support mechanism, the bottom left and top left of which are fixedly connected with pipes, the bottom right of which is fixedly connected with a discharge pipe, and the top right of which is provided with an opening;

[0008] A square mounting block is rotatably assembled inside a circular box. The top left and right sides of the square mounting block are provided with through slots, and the top and bottom sides of the square mounting block abut against the inner walls of the top and bottom sides of the circular box, respectively.

[0009] The filter plate consists of two pieces, which are respectively fixedly installed inside two through slots;

[0010] The transmission mechanism, located on the top of the circular housing, is used to drive the square mounting block to rotate in both directions.

[0011] The mounting box is fixedly installed on the top right side of the circular box and matches the opening position;

[0012] A spraying mechanism, which is slidably mounted inside the mounting box;

[0013] A cylinder is fixedly installed on the right side of the mounting box, and the telescopic end of the cylinder extends into the interior of the mounting box and is fixedly connected to the spraying mechanism.

[0014] As a preferred technical solution, the transmission mechanism includes a motor, the output shaft of which extends into the circular housing and is connected to the center of the top of the square mounting block.

[0015] As a preferred technical solution, the spraying mechanism includes an installation pipe, which is slidably mounted inside the installation box. The telescopic end of the cylinder is fixedly connected to the periphery of the installation pipe. Several spray nozzles are arranged in a front-to-back pattern on the lower side of the installation pipe. A water pump is fixedly mounted on the top of the installation box. The water outlet end of the water pump is provided with a water outlet hose. One end of the water outlet hose extends into the installation box and is fixedly connected to the upper side of the installation pipe. A water suction pipe is installed on the water suction end of the water pump. One end of the water suction pipe is connected to an external water source.

[0016] As a preferred technical solution, the support mechanism includes four support columns, which are evenly arranged around the bottom of the circular box. A base plate is fixedly installed at the lower end of the four support columns, and support pads are fixedly installed at the four corners of the bottom of the base plate.

[0017] As a preferred technical solution, the square mounting block is provided with a sealing layer on both the upper and lower sides, and the sealing layer has two openings that match the positions of the two through slots.

[0018] The beneficial effects of this utility model are:

[0019] During use, the square mounting block can be rotated by a motor, allowing the two filter plates to be used alternately. Therefore, there is no need to stop the machine for a long time when replacing the filter plates, which effectively improves the dust removal efficiency. The two pipes, the lower pipe is the air inlet pipe and the upper pipe is the air outlet pipe. As a result, the filter debris will adhere to the bottom side of the filter plates. After the two filter plates are in different positions, the used filter plates can be backwashed by a reciprocating spray device. The cleaning effect is good. The cleaned debris and wastewater will be discharged through the discharge pipe, so there is no need to disassemble the filter plates, which improves the work efficiency of the staff. Attached Figure Description

[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly of the square mounting block and the filter plate of this utility model.

[0025] Reference numerals in the attached drawings: 1. Circular box; 11. Support mechanism; 111. Support column; 112. Base plate; 113. Support pad; 12. Pipe; 13. Opening; 14. Discharge pipe; 2. Square mounting block; 21. Through groove; 5. Filter plate; 6. Transmission mechanism; 61. Motor; 7. Mounting box; 8. Spraying mechanism; 81. Mounting pipe; 82. Sprayer head; 821. Water pump; 83. Water outlet hose; 9. Cylinder. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-4 As shown, this utility model provides a dust removal device for blast furnace ironmaking, comprising:

[0028] A circular box 1 has a support mechanism 11 at its bottom. Specifically, the support mechanism 11 includes four support columns 111, which are evenly arranged around the bottom of the circular box 1. A base plate 112 is fixedly installed at the lower end of the four support columns 111. Support pads 113 are fixedly installed at the four corners of the bottom of the base plate 112. The support pads 113 can be made of shock-absorbing material. The base plate 112 and the four support columns 111 can provide stable support for the circular box 1.

[0029] The bottom left and top left of the circular box 1 are both fixedly connected with pipes 12, the bottom right of the circular box 1 is fixedly connected with a discharge pipe 14, and the top right of the circular box 1 has an opening 13.

[0030] A square mounting block 2 is rotatably assembled inside a circular box 1. The top left and right sides of the square mounting block 2 are provided with through slots 21, and the upper and lower sides of the square mounting block 2 abut against the inner walls of the upper and lower sides of the circular box 1, respectively.

[0031] Two filter plates 5 are provided, and the two filter plates 5 are fixedly installed inside the two through grooves 21 respectively;

[0032] The transmission mechanism 6 is located on the top of the circular housing 1 and is used to drive the square mounting block 2 to rotate in both directions. Specifically, the transmission mechanism 6 includes a motor 61, the output shaft of which extends into the circular housing 1 and is connected to the center of the top of the square mounting block 2. In the initial state, the lower pipe 12 is the air inlet and is connected to the exhaust end of the dust collection device. The smoke and dust rise from the bottom and are discharged through the upper pipe 12 after being filtered by the filter plate 5. When the filter plate 5 needs to be replaced, simply start the motor 61. The output shaft of the motor 61 drives the square mounting block 2 to rotate half a revolution quickly, completing the positional alternation between the two filter plates 5. Then, start the external dust collection device to collect the dust. There is no need to stop the machine for a long time during the replacement of the filter plate 5. The replacement speed is fast and the dust removal efficiency is high.

[0033] Install the housing 7, which is fixedly installed on the top right side of the circular housing 1 and matches the position of the opening 13;

[0034] The spraying mechanism 8 is slidably mounted inside the mounting box 7. Specifically, the spraying mechanism 8 includes a mounting pipe 81, which is slidably mounted inside the mounting box 7. The telescopic end of the cylinder 9 is fixedly connected to the periphery of the mounting pipe 81. Several nozzles 82 are arranged in a front-to-back pattern on the lower side of the mounting pipe 81. A water pump 821 is fixedly mounted on the top of the mounting box 7. The water outlet end of the water pump 821 is provided with a water outlet hose 83. One end of the water outlet hose 83 extends into the mounting box 7 and is fixedly connected to the upper side of the mounting pipe 81. A suction pipe is installed on the suction end of the water pump 821, and one end of the suction pipe is connected to an external water source.

[0035] After the used filter plate 5 is rotated under the mounting box 7, the operator starts the water pump 821. The water pump 821 sends external water into the mounting pipe 81 and sprays it evenly onto the filter plate 5 through several nozzles 82. Since the dust is discharged from the lower right to the upper left, the impurities will adhere to the lower side of the filter plate 5. The operator starts the cylinder 9, which drives the mounting pipe 81 to move back and forth, rinsing the filter plate 5 from top to bottom, performing backwashing and cleaning of the filter plate 5. The cleaning effect is good. This operation method does not require disassembling and cleaning the used filter plate 5, which is convenient and effectively improves the work efficiency of the operator.

[0036] Cylinder 9 is fixedly installed on the right side of the mounting box 7. The telescopic end of cylinder 9 extends into the interior of the mounting box 7 and is fixedly connected to the spraying mechanism 8.

[0037] The square mounting block 2 has a sealing layer on both the upper and lower sides. The sealing layer has two openings that match the positions of the two through slots 21. The sealing layer makes the square mounting block 2 better seal against the inner walls of the upper and lower sides of the circular box 1, ensuring that the smoke and dust will flow through the through slots 21 and be discharged.

[0038] The device is used as follows:

[0039] In use, the lower pipe 12 is connected to the exhaust end of the external vacuum cleaner, and the upper pipe 12 performs the exhaust operation. In the initial state, the left through slot 21 is located between the two pipes 12. After the smoke and dust enter the circular box 1, they are filtered by the filter plate 5 inside the left through slot 21 and then discharged. When the filter plate 5 needs to be replaced, simply start the motor 61. The motor 61 can drive the square mounting block 2 to rotate half a revolution, and then the two through slots 21 are swapped, thus completing the replacement of the filter plate 5. The operation is simple and convenient, without the need for long-term shutdown to replace the filter plate 5, improving the efficiency of dust removal. Dust removal efficiency is improved. The used filter plate 5 is located on the lower side of the mounting box 7. The operator simultaneously starts the cylinder 9 and the water pump 821. After the cylinder 9 starts, its telescopic end can drive the mounting pipe 81 to move back and forth inside the mounting box 7. After the water pump 821 starts, it sends external water into the mounting pipe 81 and sprays it out through the arranged nozzles 82 to backwash the used filter plate 5. The rinsing effect is good. This operation method does not require disassembling and cleaning the filter plate 5, making the operation more convenient and efficient. Repeat the above operation process and use the two alternately arranged filter plates 5 for dust removal, making dust removal more efficient.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A dust removal device for blast furnace ironmaking, characterized in that: include A circular box (1) is provided with a support mechanism (11) at the bottom. Pipes (12) are fixedly connected to the left bottom and the left top of the circular box (1). A discharge pipe (14) is fixedly connected to the right bottom of the circular box (1). An opening (13) is provided on the right top of the circular box (1). A square mounting block (2) is rotatably assembled inside a circular box (1). The top left and right sides of the square mounting block (2) are provided with through slots (21). The upper and lower sides of the square mounting block (2) abut against the inner walls of the upper and lower sides of the circular box (1). Two filter plates (5) are provided, and the two filter plates (5) are respectively fixedly installed inside the two through slots (21); The transmission mechanism (6) is located on the top of the circular box (1) and is used to drive the square mounting block (2) to rotate in the forward and reverse directions; The mounting box (7) is fixedly installed on the top right side of the circular box (1) and matches the position of the opening (13); Spraying mechanism (8), which is slidably mounted inside the mounting box (7); The cylinder (9) is fixedly installed on the right side of the mounting box (7), and the telescopic end of the cylinder (9) extends into the interior of the mounting box (7) and is fixedly connected to the spraying mechanism (8).

2. The dust removal device for blast furnace ironmaking according to claim 1, characterized in that: The transmission mechanism (6) includes a motor (61), the output shaft of which extends into the circular housing (1) and is connected to the center of the top of the square mounting block (2).

3. The dust removal device for blast furnace ironmaking according to claim 1, characterized in that: The spraying mechanism (8) includes an installation pipe (81), which is slidably mounted inside the installation box (7). The telescopic end of the cylinder (9) is fixedly connected to the periphery of the installation pipe (81). Several nozzles (82) are arranged in a front-to-back pattern on the lower side of the installation pipe (81). A water pump (821) is fixedly mounted on the top of the installation box (7). The water outlet end of the water pump (821) is provided with a water outlet hose (83). One end of the water outlet hose (83) extends into the installation box (7) and is fixedly connected to the upper side of the installation pipe (81). A water suction pipe is installed on the water suction end of the water pump (821). One end of the water suction pipe is connected to an external water source.

4. The dust removal device for blast furnace ironmaking according to claim 1, characterized in that: The support mechanism (11) includes four support columns (111), which are evenly arranged around the bottom of the circular box (1). The bottom ends of the four support columns (111) are fixedly installed with a base plate (112), and support pads (113) are fixedly installed at the four corners of the bottom of the base plate (112).

5. The dust removal device for blast furnace ironmaking according to claim 1, characterized in that: The square mounting block (2) has a sealing layer on both the upper and lower sides, and the sealing layer has two openings that match the positions of the two through slots (21).

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