Filtering treatment device for steel plant

Abstract

The utility model relates to the field of steel plant environmental protection, in particular to a filtering treatment device for a steel plant, which comprises a dust removal cavity, a plurality of filter cartridges mounted at the upper end of a partition plate and a cleaning mechanism. If dust adhered to the surface of the filter cartridge affects the filtering effect, two fans are started, through chain transmission of a transmission structure, two reciprocating screw rods can rotate along with the fans after the fans are started, and sliding blocks can reciprocate along the reciprocating screw rods after the reciprocating screw rods rotate, so that the filtering effect of the filter cartridge is improved; at the moment, a convex block at the upper end of the sliding block moves to abut against the shifting plate to move along with the sliding block, after a second spring at one end of the shifting plate is completely compressed, the convex block which continuously moves can be shrunk downwards through the arrangement of a first spring, so that the convex block is separated from the limitation on the shifting plate, and at the moment, through the elasticity of the second spring, the shifting plate is separated from the sliding block; after the convex block is separated from the shifting plate, the second spring can drive the two ends of the shifting plate to move, so that the shifting plate flaps the filter cartridges at the two ends of the shifting plate to enable dust adhered to the surfaces of the filter cartridges to fall off.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection in steel plants, and in particular to a filtration treatment device for steel plants. Background Technology

[0002] A steel mill is a type of heavy industry, secondary sector, manufacturing, capital-intensive industry, fixed asset, and factory. The raw materials for steel mills are iron ore, coal, charcoal, etc., supplied by the mining industry.

[0003] Steel plants generate a large amount of gas during operation, and this gas contains a large number of dust particles. Before these gases are released, the dust particles in the gas need to be filtered to prevent them from affecting the environment near the steel plant.

[0004] Most existing dust removal and environmental protection equipment used in steel plants filters gas through a filter cartridge structure. After prolonged use, the filter cartridge layer is prone to accumulating a large amount of dust particles, which can easily affect the filtration effect of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a filtration device for steelmaking plants in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A filtration device for steelmaking plants includes a dust removal chamber, a partition plate fixed inside the dust removal chamber, multiple filter cartridges installed on the upper end of the partition plate, and a cleaning mechanism.

[0008] The cleaning mechanism includes a mounting frame, which is fixed to one end of the dust removal chamber. A dust filter bag is fixed to one end of the mounting frame. Two fans are installed inside the mounting frame. A reciprocating screw is provided on one side of the fan and is rotatably connected to the dust removal chamber. A transmission structure is installed between the output shaft of the fan and the corresponding reciprocating screw. A sliding block is threadedly connected to the outer side of the reciprocating screw and is slidably connected to the dust removal chamber. Two first springs are fixed inside the sliding block. A protrusion is fixed to the upper end of the first spring. Two fixed frames are fixed to the inner walls of the front and rear ends of the dust removal chamber. A fixed shaft is fixed in the middle of each fixed frame. A toggle plate is provided between the two corresponding fixed frames and is slidably connected to the fixed shaft. Second springs are fixedly connected to both ends and sides of the toggle plate, and the other end of the second spring is fixed to the fixed frame.

[0009] Preferably, the transmission structure is composed of two sprockets and a chain meshing around the sprockets. The two sprockets of the transmission structure are respectively fixed on the output shaft of the fan and the reciprocating lead screw.

[0010] Preferably, the upper end of the protruding block is higher than the lower end of the poking plate.

[0011] Preferably, the length of the fixing frame and the fixing shaft is greater than the interval between two adjacent filter cartridges.

[0012] Preferably, the upper plate surface of the partition plate is inclined, and the air outlet end of the filter cartridge penetrates the partition plate.

[0013] Preferably, a support frame is fixed on the periphery of the dust removal cavity, an air inlet pipe is fixed on the upper end of one end of the dust removal cavity, and an air pump is installed on the lower end of the dust removal cavity.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] When the fan is started, the two reciprocating wire rods are rotated through the chain transmission of the transmission structure, and then the sliding block is connected with the reciprocating wire rod through the screw connection and is connected with the dust removal cavity through the sliding connection, so that the sliding block moves back and forth along the reciprocating wire rod when the reciprocating wire rod rotates, and the upper end of the protruding block of the sliding block moves to abut against the poking plate and move the poking plate, the second spring at one end of the poking plate is completely compressed, the first spring is arranged to make the continuously moving protruding block sink downward, so that the protruding block is separated from the poking plate, the second spring is elastically deformed to drive the poking plate to move at both ends when the protruding block is separated from the poking plate, so that the poking plate beats the filter cartridges at both ends to make the dust adhered to the surface of the filter cartridges fall off, and the falling dust is blown to the dust collecting bag at one end of the bearing frame through the start of the fan, and the dust on the upper end of the partition plate slides along the inclined surface of the partition plate to the bottom of the bearing frame through the inclined arrangement of the upper end of the partition plate, and then the dust is sucked into the dust collecting bag through the wind power generated by the fan. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic view of a filtering treatment device for a steel plant according to the present application;

[0018] Figure 2 is a main sectional view of a filtering treatment device for a steel plant according to the present application;

[0019] Figure 3 is a structural schematic view of a cleaning mechanism in a filtering treatment device for a steel plant according to the present application;

[0020] Figure 4 is the partial structure schematic view of the cleaning mechanism in the filtering treatment device for steel plant of the utility model;

[0021] Figure 5 is the main sectional view of the sliding block in the filtering treatment device for steel plant of the utility model.

[0022] The reference signs are explained as follows:

[0023] 1, dust removal cavity;11, support frame;12, air inlet pipe;13, air pump;2, partition plate;21, filter cartridge;3, bearing frame;31, dust filter bag;32, fan;33, reciprocating screw;34, transmission structure;35, sliding block;36, first spring;37, protruding block;38, fixed frame;39, fixed shaft;310, actuating plate;311, second spring. DETAILED DESCRIPTION

[0024] In the description of the utility model, it is explained that, unless there is explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning of the utility model in the specific circumstances.

[0025] The utility model is further described below in conjunction with the drawings:

[0026] As Figures 1-5 Indicated, a kind of filtering treatment device for steel plant, including dust removal cavity 1, dust removal cavity 1 inside fixed partition plate 2, multiple filter cartridges 21 are installed on the upper end of partition plate 2, the upper plate surface of partition plate 2 is inclined to be arranged, and the air outlet end of filter cartridge 21 penetrates partition plate 2, further include cleaning mechanism.

[0027] Dust removal cavity 1 periphery is fixed with support frame 11, dust removal cavity 1 one end is fixed with air inlet pipe 12 in upper side, dust removal cavity 1 lower end is installed with air pump 13;The waste gas exhaust device of steel plant is connected to the input end of air inlet pipe 12, when starting air pump 13, can make waste gas pass through filter cartridge 21 and be discharged from dust removal cavity 1.

[0028] The cleaning mechanism comprises a containing frame 3 fixed at one end of the dust removal cavity 1, a dust filter bag 31 fixed at one end of the containing frame 3, two fans 32 installed inside the containing frame 3, a reciprocating screw rod 33 provided at one side of the fan 32 and rotatably connected with the dust removal cavity 1, a transmission structure 34 installed between the output shaft of the fan 32 and the corresponding reciprocating screw rod 33, the transmission structure 34 being composed of two sprockets and a chain engaged with the sprockets, the two sprockets of the transmission structure 34 being fixed on the output shaft of the fan 32 and the reciprocating screw rod 33 respectively, a sliding block 35 threadedly connected with the reciprocating screw rod 33, the sliding block 35 being slidably connected with the dust removal cavity 1, two first springs 36 fixed inside the sliding block 35, a protrusion 37 fixed at the upper end of the first spring 36, two fixed frames 38 fixed on the inner walls of the front and rear ends of the dust removal cavity 1, a fixed shaft 39 fixed in the middle of each fixed frame 38, the length of the fixed frame 38 and the fixed shaft 39 being greater than the distance between two adjacent filter cartridges 21, a push plate 310 provided between the corresponding two fixed frames 38 at the front and rear, the upper end of the protrusion 37 being higher than the lower end of the push plate 310, the push plate 310 being slidably connected with the fixed shaft 39, a second spring 311 fixed at both ends and both sides of the push plate 310, and the other end of the second spring 311 being fixed with the fixed frame 38; through the thread connection between the sliding block 35 and the reciprocating screw rod 33 and the sliding connection between the sliding block 35 and the dust removal cavity 1, the sliding block 35 can reciprocate along the reciprocating screw rod 33 after the reciprocating screw rod 33 is rotated.

[0029] Working principle: in the device operation, through the start of air pump 13 can make the exhaust gas through filter cartridge 21 discharge dust chamber 1, exhaust gas through filter cartridge 21 can make the dust particles in the exhaust gas be filtered out, when the device after a long time operation, if the filter cartridge 21 surface adhered dust affect its filtering effect, start two fans 32, through the chain transmission of transmission structure 34, when the fan 32 starts can make two reciprocating wire rods 33 rotate, then through the threaded connection of sliding block 35 and reciprocating wire rods 33 and the sliding connection of sliding block 35 and dust chamber 1, sliding block 35 and dust chamber 1 can be the sliding connection of sticking to each other or the sliding connection of the cooperation of regular slide and slide rail, as long as the sliding block can only reciprocate along the reciprocating wire rod 33 and not rotate. When the reciprocating wire rod 33 rotates, the sliding block 35 can reciprocate along the reciprocating wire rod 33, at this time, the movement of the upper end lug 37 of the sliding block 35 makes it push against the toggle plate 310 and move, after the second spring 311 at one end of the toggle plate 310 is completely compressed, through the setting of the first spring 36, the continuously moving lug 37 can be lowered, so that the lug 37 is separated from the restriction of the toggle plate 310, at this time, through the elasticity of the second spring 311, when the lug 37 is separated from the toggle plate 310, the second spring 311 can drive the toggle plate 310 to move at both ends, so that the toggle plate 310 can beat the filter cartridge 21 on both sides to make the dust adhered to the surface fall off, at the same time, through the start of the fan 32, the falling dust can be blown to the dust bag 31 at one end of the bearing frame 3, and through the inclined setting of the upper end of the partition plate 2, the dust falling on the upper end of the partition plate 2 can slide along the inclined surface of the partition plate 2 to the bottom of the bearing frame 3, then through the wind power generated by the fan 32, the dust can be sucked into the dust bag 31.

[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A filtration device for steelmaking plants, comprising a dust removal chamber (1), wherein a partition plate (2) is fixed inside the dust removal chamber (1), and a plurality of filter cartridges (21) are installed on the upper end of the partition plate (2), characterized in that: It also includes cleanup agencies; The cleaning mechanism includes a mounting frame (3), which is fixed to one end of the dust removal chamber (1). A dust filter bag (31) is fixed to one end of the mounting frame (3). Two fans (32) are installed inside the mounting frame (3). A reciprocating screw (33) is provided on one side of the fan (32), and the reciprocating screw (33) is rotatably connected to the dust removal chamber (1). A transmission structure (34) is installed between the output shaft of the fan (32) and the corresponding reciprocating screw (33). A sliding block (35) is threadedly connected to the periphery of the reciprocating screw (33), and the sliding block (35) is slidably connected to the dust removal chamber (1). The sliding block (35) has two first springs (36) fixed inside. The upper end of the first spring (36) is fixed with a protrusion (37). The inner walls of the front and rear ends of the dust removal chamber (1) are fixed with two fixing brackets (38). Each fixing bracket (38) has a fixing shaft (39) fixed in the middle. A toggle plate (310) is provided between the two corresponding fixing brackets (38). The toggle plate (310) is slidably connected to the fixing shaft (39). The two ends and both sides of the toggle plate (310) are fixedly connected with second springs (311). The other end of the second spring (311) is fixed to the fixing bracket (38).

2. The filtration device for steelmaking plants according to claim 1, characterized in that: The transmission structure (34) is composed of two sprockets and a chain meshing around the sprockets. The two sprockets of the transmission structure (34) are respectively fixed on the output shaft of the fan (32) and the reciprocating screw (33).

3. The filtration device for steelmaking plants according to claim 1, characterized in that: The upper end of the protrusion (37) is higher than the lower end of the toggle plate (310).

4. The filtration treatment device for steelmaking plants according to claim 1, characterized in that: The length of the fixing frame (38) and the fixing shaft (39) is greater than the distance between two adjacent filter cartridges (21).

5. A filtration device for steelmaking plants according to claim 1, characterized in that: The upper surface of the partition plate (2) is inclined, and the air outlet end of the filter cartridge (21) passes through the partition plate (2).

6. A filtration device for steelmaking plants according to claim 1, characterized in that: A support frame (11) is fixed around the dust removal chamber (1), an air inlet pipe (12) is fixed at the upper part of one end of the dust removal chamber (1), and an air pump (13) is installed at the lower end of the dust removal chamber (1).

Images