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CN-224207742-U - Metal fiber felt dust removal denitration integrated device

CN224207742UCN 224207742 UCN224207742 UCN 224207742UCN-224207742-U

Abstract

The utility model provides a dust and denitration integrated device for a metal fiber mat, which comprises a shell, wherein one side of the shell is communicated with an air inlet, one side of the communication part of the inner wall of the shell and the air inlet is provided with a flow expansion cover, one end of the flow expansion cover is detachably provided with a filter assembly, one end of the inner wall of the shell is fixedly provided with a fixed frame, and two groups of fiber interweaved metal filter mats are arranged in the fixed frame. The waste gas is ensured to flow into the shell after being filtered by the gas filter screen, the burden is lightened for the filtering and denitration work of the follow-up fiber interweaved metal filter felt, the service life of the fiber interweaved metal filter felt is prolonged, and the problem that the efficiency and stability of dust removal and denitration are influenced due to the blockage of the fiber interweaved metal filter felt is avoided.

Inventors

  • LI BO
  • LI DONGWA
  • CHEN JIAO
  • GUO JIANYING

Assignees

  • 天津泰达环保有限公司
  • 天津渤海环保工程有限公司

Dates

Publication Date
20260508
Application Date
20250422

Claims (6)

  1. 1. The metal fiber felt dust removal and denitration integrated device is characterized by comprising a shell (1), wherein an air inlet (2) is communicated with one side of the shell (1), a flow expansion cover (5) is arranged on one side of the communication part between the inner wall of the shell (1) and the air inlet (2), a filter assembly (9) is detachably arranged at one end of the flow expansion cover (5), a fixing frame (7) is fixedly arranged at one end of the inner wall of the shell (1), two groups of fiber interweaved metal filter felts (8) are arranged in the fixing frame (7), and a side plate (4) is detachably arranged at one end of the shell (1) through bolts.
  2. 2. The metal fiber felt dust removal and denitration integrated device according to claim 1, wherein two groups of fiber interwoven metal filter felts (8) are sprayed with a denitration agent in each group of fiber interwoven metal filter felts (8).
  3. 3. The metal fiber felt dust removal and denitration integrated device according to claim 1, wherein an air outlet (3) is communicated with the other side of the shell (1), and an exhaust fan (6) is arranged in the air outlet (3).
  4. 4. The metal fiber blanket dust removal and denitration integrated device according to claim 1, wherein the filter assembly (9) comprises a mounting ring (901), the mounting ring (901) is fixedly installed on one side of the periphery of the flow expansion cover (5), and one end of the mounting ring (901) is connected with a filter frame ring (902) in a fitting manner.
  5. 5. The metal fiber blanket dust removal and denitration integrated device according to claim 4, wherein the same connecting blocks (903) are fixedly installed at one end of the periphery of the filter frame ring (902) and one end of the periphery of the mounting ring (901), the same threaded holes are formed in one end of each group of connecting blocks (903), and connecting bolts (906) are connected in the threaded holes in a threaded mode.
  6. 6. The metal fiber blanket dust removal and denitration integrated device according to claim 5, wherein sealing strips (904) are installed on the joint surface of the filter frame ring (902) and the mounting ring (901), a plurality of groups of empty holes are formed in the surface of the filter frame ring (902), and gas filter screens (905) are arranged in the empty holes.

Description

Metal fiber felt dust removal denitration integrated device Technical Field The utility model relates to the technical field of industrial waste gas, in particular to a dust removal and denitration integrated device for a metal fiber mat. Background In industrial processes, such as the industries of electricity, steel, cement, chemical industry, etc., a large amount of exhaust gas containing dust and nitrogen oxides is generated. These exhaust gases, if not effectively treated, are directly discharged to the atmosphere, which can cause serious environmental and human health hazards. In recent years, metal fiber mats have received attention for their unique properties. The metal fiber felt has higher porosity and specific surface area, can effectively filter fine dust, and has good dust removal potential theoretically. However, most of metal fiber felts at present are dust-removing and denitration integrated devices, when the metal fiber felts are used, the metal fiber felts arranged in the metal fiber felts are easy to block due to impurities in waste gas, so that the metal fiber felts are influenced in the follow-up denitration work, and the dust-removing and denitration efficiency is reduced. Disclosure of utility model The utility model aims to solve the problems in the background art and provides a dust removal and denitration integrated device for a metal fiber felt. The specific technical scheme is as follows: The metal fiber felt dust removal and denitration integrated device comprises a shell, wherein an air inlet is communicated with one side of the shell, a flow expansion cover is arranged on one side of a position, where the inner wall of the shell is communicated with the air inlet, of the shell, a filter assembly is detachably arranged at one end of the flow expansion cover, a fixed frame is fixedly arranged at one end of the inner wall of the shell, two groups of fiber interweaved metal filter felts are arranged in the fixed frame, and a side plate is detachably arranged at one end of the shell through bolts. As a preferable scheme of the utility model, two groups of fiber-interweaved metal filter felts are sprayed with a denitration agent. As a preferable scheme of the utility model, the other side of the shell is communicated with an air outlet, and an exhaust fan is arranged in the air outlet. As a preferable scheme of the utility model, the filter assembly comprises a mounting ring, wherein the mounting ring is fixedly arranged on one side of the periphery of the flow expansion cover, and one end of the mounting ring is connected with a filter frame ring in a fitting way. As a preferable scheme of the utility model, the same connecting blocks are fixedly arranged at the peripheral ends of the filter frame ring and the mounting ring, the same threaded holes are formed at one end of each group of connecting blocks, and the threaded holes are internally and fixedly connected with connecting bolts. As a preferable scheme of the utility model, the same connecting blocks are fixedly arranged at the peripheral ends of the filter frame ring and the mounting ring, the same threaded holes are formed at one end of each group of connecting blocks, and the threaded holes are internally and fixedly connected with connecting bolts. The utility model has the following beneficial effects: 1. According to the metal fiber felt dust removal and denitration integrated device provided by the utility model, through the design of the flow expansion cover, the filter assembly and the fiber interweaved metal filter felt, when the air inlet at one side of the shell is connected with the industrial waste gas outlet, flue gas enters the shell from the air inlet, waste gas can quickly flow into the shell through the flow expansion cover in the entering process, larger particle dust in the waste gas can be intercepted when the flue gas enters the shell through the filter assembly, the waste gas is preliminarily filtered, the influence of blockage caused by the adsorption of impurities in the waste gas on the metal fiber felt on denitration work is avoided, and due to the fact that the denitration agent is sprayed in the fiber interweaved metal filter felt, the dust removal and denitration efficiency is not influenced due to the blockage of the metal fiber felt, negative pressure is generated through the exhaust fan arranged in the air outlet, the continuous flow of the gas is ensured, and the stable treatment process is maintained. 2. According to the metal fiber felt dust-removing and denitration integrated device, due to the design of the mounting ring, the filter frame ring and the gas filter screen, the metal fiber felt dust-removing and denitration integrated device is arranged on one side of the flow expansion cover, the entering waste gas can be filtered, the leakage of the waste gas from the joint can be effectively prevented by attaching the sealing strip between the filter frame ring and the mounting ring, the