Box-type high-temperature gas filter

Abstract

The invention belongs to the technical field of high-temperature gas filtering equipment, and particularly relates to a box-type high-temperature gas filter which comprises a filter shell and a box-type honeycomb filter unit sealed in the filter shell. According to the box-type high-temperature gas filter disclosed by the invention, the box-type honeycomb filter unit is modularly designed, the structural design is unique, the filter efficiency is high, and when the gas volume is very high, a plurality of box bodies in the same filter shell can be conveniently formed through expansion to operate at the same time; honeycomb type filter elements, an upper cover plate and a lower cover plate in the box type honeycomb filter unit are convenient to disassemble and replace, so that the same filter can be used for filtering high-temperature gas under various working conditions; the box-type honeycomb filter unit structure is cubic and is simple in structure, low in cost, easy to manufacture and convenient to mount, dismount and maintain; the filter elements are small in size, the occupied area of the container is reduced, the space utilization rate is high, and the filter is convenient to transport and store; the blow-back efficiency is high, and the running resistance is small; and dust bridging is avoided through inner side filtration.

Description

technical field [0001] The invention belongs to the technical field of high-temperature gas filtering equipment and belongs to environmental protection equipment, in particular to a box-type high-temperature gas filter with a honeycomb filter element. Background technique [0002] Membrane filter has high filtration precision, relatively stable particle size control, and backwashing is easy to restore performance. It is widely used in various industries such as coal gasification, petroleum catalysis, biomass gasification, waste incineration, pyrolysis and metallurgy. High temperature filter element There are mainly two types of porous ceramic materials and porous metal materials. The structure of high temperature filter elements can be divided into test tube type and honeycomb type. The core component of the filter is the filter element. The structure and size of the filter element determine the filter structure size and filtration efficiency. The development of a high-effic...

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Problems solved by technology

In the prior art, high-temperature gas filtration uses a test tube filter element filter, the filter element is arranged in a planar form, and the test tube filter element of the same volume is about 1 / 4 of the honeycomb filter area, so more The cost of the filter element is high; and the space utilization rate is very low, so the floor area is larger; the gas resistance of the test tube structure is large, which is not conducive to energy saving; the equipment is bulky and the production cost is high; the filter element is suspended and arranged with large tensile stress and stability Poor performance; non-uniform back blowing is prone to residual filter cake, large filter resistance and high energy consumption; and the length of the filter element is inconvenient for installation and transportation; there are requirements for the spacing of filter elements, which is prone to dust bridging

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