Converter bottom blowing mechanism for purifying variety steel

Abstract

The utility model relates to the technical field of converter bottom blowing air supply, in particular to a converter bottom blowing mechanism for variety steel purification, which comprises a main body box and a filter box, a rotating shaft is rotatably mounted in the main body box, impellers distributed in an array are mounted on the rotating shaft, a driving device is arranged at the front end of the main body box, and the filter box is arranged in the main body box. A main shaft of the driving equipment is connected with the axis of the rotating shaft, a blocking net is installed in the main body box, the blocking net is obliquely arranged, a collecting box is installed at one side end of the main body box, a feeding port is formed between the collecting box and the main body box, the filtering box is installed at one side end of the main body box, and a communicating port is formed between the filtering box and the main body box; a mounting opening is formed in the upper end of the filter box, a filter screen is mounted from the mounting opening into the filter box, and a mounting plate is mounted at the upper end of the filter screen. The air purifier has the advantages that air can be filtered, high-temperature impurities are prevented from entering the air purifier, and the filtering structure is convenient to disassemble and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of converter bottom blowing gas supply, in particular to a converter bottom blowing mechanism for purifying a variety of steel. Background Art

[0002] Converter steelmaking uses molten iron, scrap steel, and ferroalloys as the main raw materials. It does not rely on external energy sources, but relies on the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron to complete the steelmaking process in the converter. Converters are divided into acidic and alkaline types according to the refractory materials. According to the location where the gas is blown into the furnace, there are top blowing, bottom blowing, and side blowing; according to the type of gas, there are air converters and oxygen converters. Alkaline oxygen top blowing and top and bottom combined blowing converters are the most commonly used steelmaking equipment due to their fast production speed, large output, high single furnace output, low cost, and low investment. Converters are mainly used for the production of carbon steel, alloy steel, and the smelting of copper and nickel.

[0003] At present, when the converter bottom blowing gas is supplied, external air is directly added into the converter. The air contains a small amount of impurities, which will affect the steelmaking quality after entering. In addition, high-temperature impurities often fall during converter steelmaking, and high-temperature impurities can easily enter the bottom blowing equipment, affecting the service life of the converter bottom blowing equipment. Utility Model Content

[0004] The utility model aims to provide a converter bottom blowing mechanism for purifying grade steel, which has the advantages of being able to filter air and prevent high-temperature impurities from entering, and the filtering structure is easy to disassemble and clean, thereby solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a converter bottom blowing mechanism for purifying a variety of steel, comprising a main box and a filter box, a rotating shaft rotatably installed in the main box, and impellers distributed in an array are installed on the rotating shaft, an air outlet is arranged at the upper end of the main box, a barrier net is installed in the main box, and the barrier net is inclined, a collecting box is installed at one side end of the main box, and a feed port is opened between the collecting box and the main box, the filter box is installed at one side end of the main box, and a connecting port is provided between the filter box and the main box, an installation port is opened at the upper end of the filter box, a filter net is installed from the installation port into the filter box, and a mounting plate is installed at the upper end of the filter net.

[0006] When using the converter bottom blowing mechanism for purifying a type of steel of the utility model,

[0007] During operation, the impeller can be driven to rotate at high speed, and negative pressure can be generated in the main box when the impeller rotates at high speed. The external air can enter the filter box from the air inlet pipe, and the air can be filtered through the filter screen in the filter box to intercept dust impurities in the air. The filtered air can be blown out from the air outlet to supply air to the converter. During the steelmaking process, high-temperature impurities will fall from the air outlet into the main box, and the high-temperature impurities can be intercepted by the barrier net. Because the barrier net is set at an angle, the high-temperature impurities can enter the collection box through the feed port.

[0008] Preferably, a driving device is provided at the front end of the main body box, and a main shaft of the driving device is connected to the axis of the rotating shaft.

[0009] Preferably, a first discharge pipe is installed at the lower end of the collection box, and a valve is provided on the first discharge pipe.

[0010] Preferably, an air inlet pipe is installed at the side end of the filter box, and the air inlet pipe is connected to the filter box.

[0011] Preferably, a collecting box connected to the filter box is installed at the lower end of the filter box, a second discharge pipe is provided at the lower end of the collecting box, and a valve is provided on the second discharge pipe.

[0012] Preferably, the upper end of the filter box is provided with threaded holes distributed in an array, the mounting plate is provided with mounting holes corresponding to the threaded holes, and bolts are installed in the mounting holes and the inner threads of the threaded holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. When supplying air to the converter, the air will pass through the filter box and be filtered through the filter screen in the filter box to intercept dust impurities in the air. The filtered air can prevent the reduction of steelmaking quality. When the filter screen needs to be cleaned, the mounting plate can be removed from the filter box by removing the bolts on the mounting plate, so that the filter screen can be taken out, which is convenient for cleaning the filter screen.

[0015] 2. During the steelmaking process, high-temperature impurities will fall from the air outlet into the main box. The high-temperature impurities can be intercepted by the barrier net. Because the barrier net is set at an angle, the high-temperature impurities can enter the collection box through the feed port for collection, preventing it from affecting the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 4 It is a partial enlarged structural schematic diagram of the utility model.

[0020] The reference numerals and names in the figures are as follows:

[0021] 101. Main box; 102. Air outlet; 103. Driving device; 104. Rotating shaft; 105. Impeller; 106. Barrier net; 201. Collecting box; 202. Feeding port; 301. Filter box; 302. Inlet pipe; 303. Collecting box; 304. Mounting plate; 305. Filter net; 306. Connecting port; 307. Mounting port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figures 1 to 4 The utility model provides an embodiment: a converter bottom blowing mechanism for purifying a variety of steel, comprising:

[0025] A main body box 101 and a filter box 301, wherein a rotating shaft 104 is rotatably installed in the main body box 101, and impellers 105 distributed in an array are installed on the rotating shaft 104, an air outlet 102 is arranged at the upper end of the main body box 101, a barrier net 106 is installed in the main body box 101, and the barrier net 106 is arranged obliquely, a collecting box 201 is installed at one side end of the main body box 101, and a feed port 202 is provided between the collecting box 201 and the main body box 101, the filter box 301 is installed at one side end of the main body box 101, and a connecting port 306 is provided between the filter box 301 and the main body box 101, an installation port 307 is provided at the upper end of the filter box 301, a filter net 305 is installed from the installation port 307 into the filter box 301, and a mounting plate 304 is installed at the upper end of the filter net 305.

[0026] In this embodiment, when working, the impeller 105 can be made to rotate at high speed through the driving device 103. The high-speed rotation of the impeller 105 can generate negative pressure in the main box 101, and the external air can enter the filter box 301 from the air inlet pipe 302. The air can be filtered through the filter net 305 in the filter box 301 to intercept dust impurities in the air. The filtered air can be blown out from the air outlet 102 to supply air to the converter. During the steelmaking process, high-temperature impurities will fall from the air outlet 102 into the main box 101, and the high-temperature impurities can be intercepted by the barrier net 106. Since the barrier net 106 is set at an angle, the high-temperature impurities can enter the collection box 201 through the feed port 202.

[0027] Furthermore,

[0028] The front end of the main body box 101 is provided with a driving device 103, and the main shaft of the driving device 103 is connected to the axis of the rotating shaft 104. The driving device 103 can make the rotating shaft 104 rotate at a high speed, so that the impeller 105 can rotate at a high speed.

[0029] Furthermore,

[0030] A first discharge pipe is installed at the lower end of the collecting box 201 , and a valve is arranged on the first discharge pipe. The first discharge pipe is arranged to discharge the impurities collected in the collecting box 201 .

[0031] Furthermore,

[0032] An air inlet pipe 302 is installed at the side end of the filter box 301 , and the air inlet pipe 302 is in communication with the filter box 301 . External air can enter the filter box 301 through the air inlet pipe 302 .

[0033] Furthermore,

[0034] The lower end of the filter box 301 is provided with a collecting box 303 which is connected to the filter box 301. The lower end of the collecting box 303 is provided with a second discharge pipe, and a valve is provided on the second discharge pipe. The dust impurities filtered and intercepted by the filter net 305 can enter the collecting box 303 through the connecting port 306 for collection. When a large amount of dust impurities are collected in the collecting box 303, they can be discharged through the second discharge pipe.

[0035] Furthermore,

[0036] The filter box 301 has threaded holes arranged in an array on its upper end, and mounting holes corresponding to the threaded holes are provided on the mounting plate 304. Bolts are installed in the mounting holes and the inner threads of the threaded holes. The mounting holes and the threaded holes can be used with bolts to fix the mounting plate 304, thereby installing the filter screen 305.

[0037] The driving device 103 in the present invention is a well-known device, and its working principle and circuit connection are well known to technicians in this field, and are conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A converter bottom blowing mechanism for purifying a variety of steel, comprising a main box (101) and a filter box (301), characterized in that: A rotating shaft (104) is rotatably mounted in the main box (101), and impellers (105) arranged in an array are mounted on the rotating shaft (104). An air outlet (102) is arranged at the upper end of the main box (101). A barrier net (106) is installed in the main box (101), and the barrier net (106) is arranged in an inclined manner. A collection box (201) is installed at one side end of the main box (101), and the collection box (201) is connected to the main box (101). 1), a feed port (202) is provided between the filter box (301) and the main box (101), a filter box (301) is installed at one side end of the main box (101), a communication port (306) is provided between the filter box (301) and the main box (101), an installation port (307) is provided at the upper end of the filter box (301), a filter screen (305) is installed into the filter box (301) from the installation port (307), and a mounting plate (304) is installed at the upper end of the filter screen (305).

2. The converter bottom blowing mechanism for purifying a type of steel according to claim 1, characterized in that: A driving device (103) is provided at the front end of the main body box (101), and the main shaft of the driving device (103) is connected to the axis of the rotating shaft (104).

3. The converter bottom blowing mechanism for purifying a type of steel according to claim 1, characterized in that: A first discharge pipe is installed at the lower end of the collection box (201), and a valve is provided on the first discharge pipe.

4. The converter bottom blowing mechanism for purifying a type of steel according to claim 1, characterized in that: An air inlet pipe (302) is installed at the side end of the filter box (301), and the air inlet pipe (302) is in communication with the filter box (301).

5. The converter bottom blowing mechanism for purifying a type of steel according to claim 1, characterized in that: A collecting box (303) connected to the filtering box (301) is installed at the lower end of the filtering box (301), and a second discharge pipe is provided at the lower end of the collecting box (303), and a valve is provided on the second discharge pipe.

6. The converter bottom blowing mechanism for purifying a type of steel according to claim 1, characterized in that: The upper end of the filter box (301) is provided with threaded holes distributed in an array, and the mounting plate (304) is provided with mounting holes corresponding to the threaded holes, and bolts are installed in the mounting holes and the inner threads of the threaded holes.

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