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Method for replacing filter cores in fly ash filter

A filter and filter element technology, applied in the field of fly ash filter, can solve the problems of short operation time, high safety risk, long operation time, etc.

Active Publication Date: 2015-12-09
中国化学工程第四建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Based on this, it is necessary to provide a fly ash filter element with short operating time, low safety risk and low construction cost in view of the problems of long working time, high safety risk and high construction cost of the traditional fly ash filter replacement method replacement method

Method used

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  • Method for replacing filter cores in fly ash filter
  • Method for replacing filter cores in fly ash filter

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0031] It should be noted that the installation of some detailed equipment involved in this application, such as the installation and fixing of bolts, springs, spring seats, etc., is consistent with the installation specifications in this field. After the completion of each step, corr...

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Abstract

The invention provides a method for replacing filter cores in a fly ash filter. The method comprises the following steps: dismounting Venturi of all groups of filter devices, and sending out the Venturi from a first manhole to obtain dismounted Venturi; dismounting the filter cores of all the groups of filter devices, and sending out the filter cores from a second manhole; feeding 24 groups of new filter cores from the second manhole, and re-mounting the 24 groups of new filter cores; feeding the dismounted Venturi from the first manhole, and re-arranging the dismounted Venturi above all the groups of the new filter cores; and inspecting until qualification, and sealing the first manhole and the second manhole in order to complete replacement of the filter cores in the fly ash filter. The method for replacing the filter cores in the fly ash filter has the advantages of short working time, low safety risk and low construction cost.

Description

technical field [0001] The invention relates to a fly ash filter, in particular to a method for replacing the inner filter element of the fly ash filter. Background technique [0002] The general principle of the coal gasification device is: use coal gas as fuel for incomplete combustion to form carbon monoxide (CO), and add water vapor to carbon monoxide to form carbon dioxide and hydrogen. The main product of the coal gasification unit is a synthesis gas composed of 63% carbon monoxide, 23% hydrogen and about 10% nitrogen. [0003] The high temperature and high pressure filter fly ash collection tank S1501 is located at 82m~94m of the gasification frame of the coal gasification device. Its role in the coal gasification device is to filter the crude gas with high ash content and convert it into ash content less than 10mg / Nm 3 , generally 1mg / Nm 3 ~2mg / Nm 3 clean gas. [0004] The internal parts of the high temperature and high pressure fly ash filter are filter compone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/24C10J3/84
Inventor 曾志勇张俊姜杰张琪
Owner 中国化学工程第四建设有限公司