Submerged arc furnace gas scrubber tower

Abstract

The utility model relates to the field of submerged arc furnaces, discloses a gas scrubber tower of a submerged arc furnace, and solves the problem that a cyclone of the gas scrubber tower of the existing submerged arc furnace is poor in filtering effect. By means of the connecting plate, the elastic rope and the nail ball, the bamboo-hat-shaped filter screen is arranged at the inlet end of the swirler to filter gas again, the problem of blockage caused by long-time deposition is avoided, meanwhile, the cross-shaped connecting plate is arranged at one end of the filter screen, and the filter screen is arranged at the other end of the swirler. One end of the connecting plate is connected with three groups of nail balls through three groups of elastic ropes, and the three groups of nail balls roll in the filter screen through rotating wind force in the cyclone, so that nail heads of the nail balls dredge the filter holes.

Description

Technical Field

[0001] The utility model relates to the technical field of submerged arc furnaces, in particular to a gas washing tower for submerged arc furnaces. Background Art

[0002] The gas scrubber for submerged arc furnace is a kind of equipment used for gas purification, which is commonly found in mining and metallurgical industries. It is mainly used to remove harmful substances such as particulate matter, sulfide, chloride, phenol, etc. in gas to improve the gas purification degree and environmental protection effect. The tail gas of submerged arc furnace is transported to the gas holder through pipelines. While delivering gas to each user point, the inlet temperature of the purification filter is unstable, which occasionally causes damage to the purification bag. The gas is transported into the gas holder through pipelines and air cooler equipment with a large amount of dust, causing the existing gas pipeline to be blocked, the dust removal pipe of the air cooler has a large amount of dust, which is not easy to clean, and a large amount of dust accumulates at the bottom of the gas holder, affecting normal production, and there are great safety hazards.

[0003] During the operation of the current submerged arc furnace, the scrubber is a packed scrubber, which belongs to the differential contact countercurrent type. The design of the scrubber takes into account the uniformity of airflow distribution and cooling water distribution. After the gas outside the tower enters the tower, the gas first enters the packing layer. The packing layer inside the tower is the basic component for gas-liquid two-phase contact. There is spray liquid from the top spray scrubbing layer, and a layer of liquid film is formed in the middle of each layer of vortex nozzle. When the gas flows through the gap of the liquid film, it contacts with the liquid film and absorbs or reacts comprehensively. When the gas and liquid reach the packing, the gas and liquid are re-contacted and distributed, which does not cause too much resistance to the gas flow. The vortex nozzle at the upper end of the packing layer sprays flushing water evenly distributed in the tower. The coal gas and the absorption liquid have a large contact area and reaction time in the scrubber. A cyclone demister is set on the top of the scrubber. There is no filter screen at the inlet of the cyclone, which may cause a large amount of particulate matter to enter the cyclone. These particulate matter will settle inside the cyclone, forming a blockage, reducing the efficiency of the cyclone and even causing failure. Utility Model Content

[0004] The utility model aims to provide a submerged arc furnace gas washing tower. The device is adopted to work, thereby solving the problem of poor filtering effect of the cyclone of the existing submerged arc furnace gas washing tower.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submerged arc furnace gas scrubber, comprising a tower body, an air inlet arranged at the bottom end of the tower body, a valve body arranged on the surface of the air inlet, a filler arranged inside the tower body, a water tank arranged at one end of the tower body, a water pipe connected to one end of the water tank, a vortex nozzle connected to one end of the water pipe, a cyclone arranged at the top of the tower body, an inlet opened at the bottom end of the cyclone, an outlet opened at the top end of the cyclone, a filter screen is arranged at the outer end of the inlet, and an anti-blocking structure is arranged inside the filter screen;

[0006] The anti-blocking structure comprises a connecting plate arranged at one end of the filter screen, an elastic rope arranged at one end of the connecting plate, and a spike ball connected to one end of the elastic rope.

[0007] Furthermore, the filter screen is in the shape of a bamboo hat, and the nail heads of the nail balls are used to clear the filter holes of the filter screen.

[0008] Furthermore, a disassembly structure is provided at the bottom end of the cyclone, and the disassembly structure includes a block arranged at the top of the filter screen. A collar is provided at the bottom end of the cyclone, a slide groove is provided inside the collar, and a slider slides inside the slide groove.

[0009] Furthermore, a push plate passes through the interior of the sliding block, one end of the push plate protrudes from the interior of the sliding groove, and one end of the push plate is tapered.

[0010] Furthermore, a groove is provided inside the sleeve ring, a transverse plate is provided inside the groove, and a rotating shaft is movably connected to the surface of the transverse plate.

[0011] Furthermore, a limiting block is arranged on the surface of the rotating shaft, and the limiting block and the clamping block are in an inverted shape.

[0012] Furthermore, a short plate is provided at one end of the rotating shaft, and the short plate is in a horizontal state with the push plate.

[0013] Furthermore, a spring is provided on one side of the limit block, and the spring is connected to the inner wall of the groove.

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

[0015] The utility model discloses a gas washing tower for coal gas from an electric arc furnace. The cyclone filtering effect of the existing gas washing tower for coal gas from an electric arc furnace is poor. The utility model uses a connecting plate, an elastic rope and a nail ball, and a filter screen in the shape of a bamboo hat is arranged at the inlet end of the cyclone to filter the gas again, so as to avoid the problem of blockage caused by long-term deposition. At the same time, a cross-shaped connecting plate is provided at one end of the filter screen, and one end of the connecting plate is connected with three groups of nail balls through three groups of elastic ropes. The three groups of nail balls roll inside the filter screen through the rotating wind force inside the cyclone, so that the nail heads of the nail balls clear the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall front section structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the anti-blocking structure of the filter screen of the utility model;

[0018] Figure 3 It is a front view structural schematic diagram of the cyclone and the disassembly structure of the utility model.

[0019] Figure 4For the utility model Figure 3 A schematic diagram of the enlarged front view structure at point A in the middle;

[0020] In the figure: 1. tower body; 2. air inlet; 3. valve body; 4. packing; 5. water tank; 6. water pipe; 7. vortex nozzle; 8. anti-blocking structure; 81. connecting plate; 82. elastic rope; 83. nail ball; 9. disassembly structure; 91. collar; 92. block; 93. limit block; 94. rotating shaft; 95. short plate; 96. spring; 97. push plate; 98. slider; 99. slide; 10. cyclone; 11. inlet; 12. outlet; 13. filter. DETAILED DESCRIPTION

[0021] 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.

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1-Figure 3 A gas washing tower for coal gas from an electric arc furnace comprises a tower body 1, an air inlet 2 arranged at the bottom end of the tower body 1, a valve body 3 arranged on the surface of the air inlet 2, a filler 4 arranged inside the tower body 1, a water tank 5 arranged at one end of the tower body 1, a water pipe 6 connected to one end of the water tank 5, a vortex nozzle 7 connected to one end of the water pipe 6, a cyclone 10 arranged at the top of the tower body 1, an inlet 11 opened at the bottom end of the cyclone 10, an outlet 12 opened at the top end of the cyclone 10, a filter screen 13 is arranged at the outer end of the inlet 11, and an anti-blocking structure 8 is arranged inside the filter screen 13.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 2 The anti-blocking structure 8 includes a connecting plate 81 arranged at one end of the filter screen 13, an elastic rope 82 arranged at one end of the connecting plate 81, and a nail ball 83 connected to one end of the elastic rope 82. The filter screen 13 is in the shape of a bamboo hat, and the nail head of the nail ball 83 is used to clear the filter holes of the filter screen 13.

[0027] Specifically, the external gas inlet 2 is allowed to enter the interior of the tower body 1 by opening the valve body 3, and then the water pump inside the water tank 5 is started by an external button. The water pump atomizes the water inside the water tank 5 into water mist through multiple groups of vortex nozzles 7 on the surface of the water pipe 6 and sprays it to the packing 4. The gas is filtered and purified by the packing 4, and then the cyclone 10 is opened, so that the gas purified by the three layers of packing 4 is input into the interior of the cyclone 10 through the inlet 11, and the water in the gas is removed. Most of the coal gas can be removed by collision adsorption. The droplet particles are removed to reduce the water content of the gas in the subsequent pipeline. Since a filter screen 13 in the shape of a bamboo hat is arranged at the inlet 11 end of the cyclone 10 to filter the gas again, the problem of blockage caused by long-term deposition is avoided. At the same time, a cross-shaped connecting plate 81 is passed through one end of the filter screen 13, and one end of the connecting plate 81 is connected to three groups of nail balls 83 through three groups of elastic ropes 82. The three groups of nail balls 83 roll inside the filter screen 13 through the rotating wind force inside the cyclone 10, so that the nail heads of the nail balls 83 clear the filter holes.

[0028] Embodiment 2:

[0029] See also Figure 3-Figure 4 A disassembly structure 9 is provided at the bottom end of the cyclone 10. The disassembly structure 9 includes a block 92 arranged at the top of the filter screen 13. A collar 91 is provided at the bottom end of the cyclone 10. A slide groove 99 is provided inside the collar 91. A slider 98 slides inside the slide groove 99. A push plate 97 runs through the slider 98. One end of the push plate 97 protrudes from the inside of the slide groove 99. One end of the push plate 97 is conical. A groove is provided inside the collar 91. A cross plate is provided inside the groove. A rotating shaft 94 is movably connected to the surface of the cross plate. A limiting block 93 is provided on the surface of the rotating shaft 94. The limiting block 93 and the block 92 are inverted. A short plate 95 is provided at one end of the rotating shaft 94. The short plate 95 and the push plate 97 are in a horizontal state. A spring 96 is provided on one side of the limiting block 93. The spring 96 is connected to the inner wall of the groove, so that the filter screen 13 can be taken out for maintenance.

[0030] Specifically, when the filter 13 needs maintenance after being used for a long time, the push plate 97 at one end of the ring 91 is pushed inward, and the push plate 97 drives the slider 98 to slide in the slide groove 99. The conical end of the push plate 97 pushes the short plate 95, and the short plate 95 rotates through the rotating shaft 94. The rotating shaft 94 is connected to the inner wall of the groove of the horizontal plate through an active connection, and the rotating shaft 94 drives the limit block 93 at the other end to rotate in an inclined state. The limit block 93 squeezes and accumulates force on the spring 96, and the limit block 93 disengages from the lower end of the card block 92, and does not limit the card block 92. Further, the filter 13 is not limited and fixed, so that the filter 13 can be taken out for maintenance.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas scrubber for a submerged arc furnace, comprising a tower body (1), an air inlet (2) arranged at the bottom end of the tower body (1), a valve body (3) arranged on the surface of the air inlet (2), a filler (4) arranged inside the tower body (1), a water tank (5) arranged at one end of the tower body (1), a water pipe (6) connected to one end of the water tank (5), a vortex nozzle (7) connected to one end of the water pipe (6), a cyclone (10) arranged at the top of the tower body (1), an inlet (11) opened at the bottom end of the cyclone (10), and an outlet (12) opened at the top end of the cyclone (10), characterized in that: A filter screen (13) is disposed at the outer end of the inlet (11), and an anti-blocking structure (8) is disposed inside the filter screen (13); The anti-blocking structure (8) comprises a connecting plate (81) arranged at one end of the filter screen (13), an elastic rope (82) arranged at one end of the connecting plate (81), and a spike ball (83) connected to one end of the elastic rope (82).

2. A submerged arc furnace gas scrubber according to claim 1, characterized in that: The filter screen (13) is in the shape of a bamboo hat, and the nail head of the nail ball (83) is used to clear the filter holes of the filter screen (13).

3. A gas scrubber for a submerged arc furnace according to claim 2, characterized in that: The bottom end of the cyclone (10) is provided with a disassembly structure (9), the disassembly structure (9) comprises a clamping block (92) arranged at the top end of the filter screen (13), the bottom end of the cyclone (10) is provided with a collar (91), a slide groove (99) is provided inside the collar (91), and a slider (98) is slidable inside the slide groove (99).

4. A gas scrubber for a submerged arc furnace according to claim 3, characterized in that: A push plate (97) is inserted into the sliding block (98), one end of the push plate (97) protrudes from the inside of the sliding groove (99), and one end of the push plate (97) is tapered.

5. The submerged arc furnace gas scrubber according to claim 3, characterized in that: The sleeve ring (91) is provided with a groove inside, a transverse plate is arranged inside the groove, and a rotating shaft (94) is movably connected to the surface of the transverse plate.

6. A gas scrubber for a submerged arc furnace according to claim 5, characterized in that: A limiting block (93) is arranged on the surface of the rotating shaft (94), and the limiting block (93) and the clamping block (92) are in an inverted shape.

7. A gas scrubber for a submerged arc furnace according to claim 6, characterized in that: A short plate (95) is provided at one end of the rotating shaft (94), and the short plate (95) and the push plate (97) are in a horizontal state.

8. The submerged arc furnace gas scrubber according to claim 6, characterized in that: A spring (96) is provided on one side of the limit block (93), and the spring (96) is connected to the inner wall of the groove.

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