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CN-120888713-B - Furnace top silencing and dust removing equipment of blast furnace

CN120888713BCN 120888713 BCN120888713 BCN 120888713BCN-120888713-B

Abstract

The invention discloses furnace top silencing and dedusting equipment of a blast furnace, and relates to the technical field of flue gas dedusting. Because the flue gas temperature of deriving from the blast furnace is higher, lead to the flue gas not through the cooling, when directly carrying out dust removal processing, the heat of flue gas is at filterable in-process, transfer for the dust removal filter, lead to the filter to damage, influence the dust removal effect to the flue gas, this blast furnace's furnace roof amortization dust collecting equipment, cavity through inner chamber piece and dustcoat storehouse, when high temperature flue gas current, utilize flue gas contact inner chamber piece and dustcoat storehouse, make the heat of flue gas when contacting, transfer for the cooling water through inner chamber piece and dustcoat storehouse, reduce the temperature of flue gas, avoid when the dust removal, high temperature flue gas leads to the filter to appear damaging, the arc arch of inner chamber piece and the concave cooperation in dustcoat storehouse simultaneously, increase the tortuosity in the flue gas circulation process, increase the area when dustcoat storehouse and inner chamber piece contact flue gas simultaneously, the cooling effect is improved.

Inventors

  • JIANG SUQIN
  • ZHANG HAITAO
  • CHEN JIANQING
  • CHEN ZHIXI

Assignees

  • 扬州市秦邮特种金属材料有限公司

Dates

Publication Date
20260508
Application Date
20250804

Claims (10)

  1. 1. A furnace roof silencing and dust removing apparatus for a blast furnace, comprising: The guide pipe (1), the guide pipe (1) is used for connecting an exhaust pipeline at the top of the blast furnace, the top of the guide pipe (1) is fixedly provided with a cooling bin (4), and the top of the cooling bin (4) is fixedly provided with a communicating pipe (5); the dust removing mechanism (2) is arranged at one end of the communicating pipe (5) far away from the cooling bin (4); the exhaust mechanism (3) is arranged at one end of the dust removing mechanism (2) far away from the communicating pipe (5); The cooling bin is characterized in that a water inlet pipe (6) and a water outlet pipe (7) are fixedly arranged on the outer side of the cooling bin (4), the water inlet pipe (6) and the water outlet pipe (7) are arranged on two sides of the cooling bin (4), the water inlet pipe (6) and the water outlet pipe (7) penetrate through the cooling bin (4) and extend to the inside of the cooling bin, an outer cover bin (8) is fixedly arranged on the inner wall of the cooling bin (4), the water inlet pipe (6) and the water outlet pipe (7) are communicated with a cavity of the outer cover bin (8), the center position of the inner wall of the outer cover bin (8) is inwards sunken, a connecting pipe (9) is fixedly arranged on the inner wall of the outer cover bin (8), the connecting pipe (9) is uniformly arranged along the center position of the outer cover bin (8), one end of the connecting pipe (9) is fixedly arranged with an inner cavity block (10), the inner cavity block (10) is arranged on the center position of the inner side of the cooling bin (4), the arc-shaped protrusion of the inner cavity block (10) corresponds to the cavity of the outer cover bin (8), and the concave position of the inner cavity block (8) is communicated with the cavity (8).
  2. 2. The blast furnace top silencing and dust removing device according to claim 1, wherein the dust removing mechanism (2) comprises a fixed pipe (201), one end of the fixed pipe (201) is fixedly connected with one end of the communicating pipe (5) far away from the cooling bin (4), an inner cushion pipe (204) is fixedly arranged on the inner wall of the fixed pipe (201), and a gap is reserved between the fixed pipe (201) and the inner cushion pipe (204).
  3. 3. The blast furnace top silencing and dust removing device according to claim 2, wherein a dust collecting cover (202) is fixedly arranged at one end, far away from the communicating pipe (5), of the outer side of the fixed pipe (201), the dust collecting cover (202) penetrates through the fixed pipe (201) and extends into the inner portion of the inner cushion pipe (204), a through groove disc (203) is fixedly arranged at one end, close to the communicating pipe (5), of the inner wall of the inner cushion pipe (204), a fixing ring (207) is fixedly arranged at one end, far away from the communicating pipe (5), of the inner wall of the inner cushion pipe (204), and a cone cushion ring (206) is fixedly arranged at one side, close to the through groove disc (203), of the fixing ring (207).
  4. 4. The blast furnace top silencing and dust removing device according to claim 3, wherein the outer side of the cone backing ring (206) is tightly attached to the inner wall of the inner backing tube (204), the cone backing ring (206) corresponds to the dust collecting cover (202), a cone cylinder (210) is arranged between the fixing ring (207) and the through groove disc (203), one end, close to the through groove disc (203), of the outer side of the cone cylinder (210) is fixedly connected with the inner wall of the through groove disc (203), and one end, close to the fixing ring (207), of the outer side of the cone cylinder (210) is fixedly connected with the inner wall of the fixing ring (207).
  5. 5. The device for silencing and dedusting at the top of a blast furnace according to claim 4, wherein the outer diameter of the conical cylinder (210) gradually decreases in the process of being far away from the trough plate (203), strip grooves are uniformly formed in the outer side of the conical cylinder (210), and a filter screen (205) is fixedly arranged in the outer side of the conical cylinder (210).
  6. 6. The blast furnace top silencing and dust removing device according to claim 5, wherein a grid cover (208) is fixedly arranged on one side, far away from the through groove disc (203), of the fixing ring (207), grid grooves are uniformly formed in the outer side of the grid cover (208), and a filter cover (209) is fixedly arranged on the inner wall of the grid cover (208).
  7. 7. The blast furnace top silencing and dedusting equipment according to claim 1, wherein the exhaust mechanism (3) comprises an air duct (301), one end of the air duct (301) is fixedly connected with the dedusting mechanism (2), an air bin (304) is fixedly arranged at the other end of the air duct (301), round grooves are formed in two sides of the air bin (304), and exhaust grooves are uniformly formed in the top of the air bin (304).
  8. 8. The blast furnace top silencing and dust removing device according to claim 7, wherein exhaust pipes (305) are fixedly installed at exhaust grooves of the gas bin (304), end barrels (306) are slidably installed at the top ends of the exhaust pipes (305), rubber backing rings (308) are fixedly installed between the end barrels (306) and the exhaust pipes (305), end covers (307) are fixedly installed at the tops of the end barrels (306), the inner diameters of the end covers (307) are gradually reduced from top to bottom, inner partition rings (309) are fixedly installed on the inner walls of the exhaust pipes (305), the inner partition rings (309) are uniformly installed inside the exhaust pipes (305), and one ends, far away from the exhaust pipes (305), of the inner partition rings (309) incline downwards.
  9. 9. The blast furnace top silencing and dust removing device according to claim 7, wherein side cover cylinders (302) are fixedly arranged at circular grooves of the gas bin (304), sliding cylinders (303) are fixedly arranged at the center positions, far away from the gas bin (304), of the side cover cylinders (302), holes are uniformly formed in the outer sides of the sliding cylinders (303), far away from one ends of the side cover cylinders (302), and air holes are uniformly formed in the edges, far away from one side of the gas bin (304), of the side cover cylinders (302).
  10. 10. The blast furnace top silencing and dust removing device according to claim 9, wherein a side sliding disc (310) is slidably mounted on the inner wall of the side cover cylinder (302), a connecting rod (312) is fixedly mounted on the outer side of the side sliding disc (310), a sliding ring (311) is fixedly mounted on the outer side of the connecting rod (312), the outer side of the sliding ring (311) is slidably matched with the inner wall of the sliding cylinder (303), and a spring (313) is fixedly mounted between the sliding ring (311) and the sliding cylinder (303).

Description

Furnace top silencing and dust removing equipment of blast furnace Technical Field The invention relates to the technical field of flue gas dust removal, in particular to furnace top silencing and dust removing equipment of a blast furnace. Background The furnace top silencing and dedusting device of the blast furnace is a series of devices for reducing noise generated in the process of equalizing and diffusing the furnace top of the blast furnace and removing dust particles in exhaust gas so as to meet the requirements of environment protection and safe production by controlling and processing high-intensity noise and dust-containing gas through special equipment and technical means so as to reduce noise pollution and reduce dust emission in the smelting process of the blast furnace and meet the environmental protection standards, ensure the production safety and improve the working environment; when dust removal is carried out to blast furnace flue gas, because the flue gas temperature of leading out from the blast furnace is higher, lead to the flue gas not to pass through the cooling, when directly carrying out dust removal treatment, the heat of flue gas is at filterable in-process, transmits for dust removal filter, leads to the filter to damage, influences the dust removal effect to the flue gas. Disclosure of Invention In order to achieve the above purpose, the invention is realized by the following technical scheme: A furnace roof silencing and dust removing apparatus for a blast furnace, comprising: The guide pipe is used for connecting an exhaust pipeline at the top of the blast furnace, the top of the guide pipe is fixedly provided with a cooling bin, and the top of the cooling bin is fixedly provided with a communicating pipe; the dust removing mechanism is arranged at one end of the communicating pipe, which is far away from the cooling bin; The exhaust mechanism is arranged at one end of the dust removing mechanism, which is far away from the communicating pipe; The outside fixed mounting of cooling bin has inlet tube and outlet pipe, inlet tube and outlet pipe are located the both sides of cooling bin, just inlet tube and outlet pipe run through the cooling bin and extend to inside it, the inner wall fixed mounting of cooling bin has the dustcoat storehouse, the inlet tube is linked together with the cavity of dustcoat storehouse with the outlet pipe, the central point of dustcoat storehouse inner wall puts inwards sunken, just the inner wall fixed mounting of dustcoat storehouse has the connecting pipe, the connecting pipe is evenly installed along the centre of a circle position of dustcoat storehouse, just the one end fixed mounting that the dustcoat storehouse was kept away from to the connecting pipe has the inner chamber piece, through the cavity of inner chamber piece and dustcoat storehouse, when high temperature flue gas flow, utilize flue gas contact inner chamber piece and dustcoat storehouse, make the heat of flue gas give the cooling water through inner chamber piece and dustcoat storehouse when contacting, reduce the temperature of flue gas, avoid when removing dust, the high temperature flue gas leads to damaging with the cavity of dustcoat storehouse, the arc protruding and dustcoat storehouse's of while is the concave cooperation, increase the tortuosity in the flue gas flow process, the area when the dustcoat contacts the flue gas with the inner chamber piece, improves the cooling effect, the inner chamber piece is located the inside central point of cooling bin, just the inner chamber piece, the inner chamber position of the inner chamber piece is located the corresponding with the cavity of dustcoat and the arc protruding, the cavity of dustcoat. Preferably, the dust removing mechanism comprises a fixed pipe, one end of the fixed pipe is fixedly connected with one end of the communicating pipe away from the cooling bin, an inner pad pipe is fixedly arranged on the inner wall of the fixed pipe, a gap exists between the fixed pipe and the inner pad pipe, a dust collecting cover is fixedly arranged at one end of the fixed pipe away from the communicating pipe, the dust collecting cover penetrates through the fixed pipe and extends to the inner portion of the inner pad pipe, a through groove disc is fixedly arranged at one end of the inner pad pipe, which is close to the communicating pipe, a fixing ring is fixedly arranged at one end of the inner pad pipe, which is away from the communicating pipe, a cone pad ring is fixedly arranged at one side of the fixing ring, which is close to the through groove disc, and is matched with a cone cylinder. Preferably, the outside of awl backing ring closely laminates with the inner wall of interior pad pipe, just the awl backing ring is corresponding with the dust collecting cover, install a toper section of thick bamboo between solid fixed ring and the logical groove dish, through toper section of thick bamboo and grid groove cooperatio