High-temperature dust remover

Abstract

The invention discloses a high-temperature dust remover. The high-temperature dust remover comprises a horizontal housing (1), a plurality of filter unit sets arranged in the housing (1), and an induced air collecting pipe (4) and a blowback air pipe (3) arranged outside the housing. The filter unit sets are arranged along a lateral direction of the housing (1). The filter unit set comprises a plurality of filter units (2) arranged in the longitudinal direction of the housing. The housing (1) is provided with an air inlet (11). A dust collecting channel (13) is arranged in the housing (1). The bottom of the housing (1) is provided with multiple dust discharging openings (12) along the transverse direction. The bottom of the filter unit (2) is provided with an air outlet (24). The blowback air pipe (3) and the induced air collecting pipe (4) are connected to the air outlet (24) through an integrated air duct (42). The high-temperature dust remover has an ingenious structure, low total height of the device, good filtering effects, good backflushing cleaning effects, small temperature difference between upper and lower sides in the dust remover, and high safety.

Description

technical field [0001] The invention relates to the technical field of gas filtration and dust removal, in particular to a high-temperature dust collector used in coal chemical industry and flammable gas high-temperature separation process. Background technique [0002] In the field of dust removal technology, double-layer filter material particle bed dust removal has unique technical advantages. Two kinds of filter materials, coarse and fine, are used for filtration and placed on different filter bed structures of the same filter unit. In the bottom, filter through the filter bed to achieve a good filter and dust removal effect. In the prior art, the filter units in the dust collector are arranged vertically so that the height is too high, reaching more than 17 meters, and the dust collector is mostly used in areas with high wind force. In these areas, the required windproof infrastructure requirements are increased for every 1 meter of height increase. It will be much hig...

AI Technical Summary

Problems solved by technology

In the prior art, the filter units in the dust collector are arranged longitudinally so that the height is too high, reaching more than 17 meters, and the dust collector is mostly used in high wind areas. In these areas, the required windproof infrastructure requirements increase for every 1 meter of height. It will be much higher, and the requirements for the steel frame are also higher, so the installation and protection costs are very high

Moreover, the structure of the existing dust collector is arranged vertically, the cross section of the flow is relatively narrow, and the wind speed of the blowback gas is large on the cross section. After the blowback, the small particles of dust dispersed at the bottom of the dust collector are not easy to settle to the bottom of the ash hopper, and the concentration will be relatively large. When the normal filtration work starts after backflushing, there will be more small particles of dust dispersed in the flue gas back into the filter unit, especially for the filter unit near the bottom of the dust collector, the effect of cleaning the filter material layer cannot be achieved. A lot of dust accumulation will increase the running resistance drop and reduce the effective filtration area, which will affect the final filtration effect

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