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Dust removal filter screen plate for waste heat recovery boiler

A waste heat recovery boiler and filter technology, which is applied in the fields of dispersed particle filtration, chemical instruments and methods, and dispersed particle separation, can solve problems such as blockage and failure to solve the surface of stencil plate, etc., to increase water output, facilitate boiler cinder, reduce The effect of labor cost

Inactive Publication Date: 2015-05-13
SHANGHAI DAZHONG XIANGYUAN POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention can clean the plate filter screen and filter bag, it still does not solve the problem of blockage on the surface of the screen plate

Method used

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  • Dust removal filter screen plate for waste heat recovery boiler

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Comparison scheme
Effect test

Embodiment 1

[0019] A waste heat recovery boiler dust removal filter net plate, its structure is as follows figure 1 As shown, it includes a stencil outer frame 3 and a stencil body 2 arranged in the stencil outer frame 3 , and the stencil body 2 is uniformly provided with elongated holes 1 . The strip-shaped holes 1 are distributed in rows, and the positions of the strip-shaped holes 1 between two adjacent rows are consistent. In this embodiment, the length of the elongated holes 1 is 3 times the distance between two adjacent elongated holes 1 in each row, and the width is 1 / 3 of the distance between two adjacent elongated holes 1 in each row. The inner surface of the elongated hole 1 is inclined, the angle between the inner surface and the horizontal direction is 30°, and the cross-sectional area of ​​the elongated hole gradually decreases from the front to the back of the screen body.

Embodiment 2

[0021] The utility model relates to a dust removal filter net plate for a waste heat recovery boiler, which comprises a net plate outer frame and a net plate body arranged in the net plate outer frame, and strip-shaped holes are evenly opened on the net plate body. The strip-shaped holes are distributed in rows, and the positions of the strip-shaped holes between two adjacent rows are staggered with each other. The length of the elongated holes is twice the distance between two adjacent elongated holes in each row, and the width is 1 / 2 of the distance between two adjacent elongated holes in each row. The inner surface of the elongated hole is inclined, the angle between the inner surface and the horizontal direction is 45°, and the cross-sectional area of ​​the elongated hole gradually decreases from the front to the back of the screen body.

[0022] After passing through the three slag pool filter screens, the remaining cinders are mostly irregular particles, which are easy t...

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Abstract

The invention relates to a dust removal filter screen plate for a waste heat recovery boiler. The dust removal filter screen plate comprises a screen plate outer frame and a screen plate body arranged in the screen plate outer frame, wherein strip-shaped holes are uniformly formed in the screen plate body. After passing through the filter screen of three slag baths, most of the remainder coal slags are irregularly granular and liable to block small holes in the screen plate; after the open holes in the dust removal filter screen plate for the waste heat recovery boiler disclosed by the invention are changed into the strip-shaped holes, the blocking phenomenon can be effectively alleviated, in addition, the water yield of dust removal water can also be increased and the maintenance period can be prolonged.

Description

technical field [0001] The invention relates to a filter device, in particular to a dust removal filter net plate for a waste heat recovery boiler. Background technique [0002] At present, the dust removal filter screens used in boiler room waste heat recovery boilers of automobile manufacturers are arranged with uniform small holes. After one to two months of use, the small holes on the screens are seriously blocked and need to be cleaned again, and the service life is short. [0003] Chinese patent CN203281555U discloses a cleaning machine for dust-removing cloth bags, filter screens, and plate filters, including a frame body. The frame body is provided with one or at least two cleaning channels for inserting and cleaning parts to be cleaned along the front and rear directions. The cleaning channels There are two sets of nozzles oppositely arranged on the two side walls of the body, and the two groups of nozzles respectively include a plurality of nozzles arranged at inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/10
Inventor 顾纯洁孙海坚朱秋明邢毅李赟汪磊姜民
Owner SHANGHAI DAZHONG XIANGYUAN POWER SUPPLY
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