Pre-coating filtering system capable of continuously operating for long period

A filtration system and long-term technology, applied in the direction of filtration separation, fixed filter element filter, separation method, etc., can solve the problems such as difficult filtration accuracy requirements of filtration technology, achieve excellent filtration effect, low maintenance cost and prolong life Effect

Pending Publication Date: 2020-12-18
北京中科永亿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, because the particles in the oil slurry are relatively fine, and the particles below 1 micron account for 0.5-5%, it is difficult for the existing filtration technology to achieve higher filtration accuracy requirements

Method used

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  • Pre-coating filtering system capable of continuously operating for long period
  • Pre-coating filtering system capable of continuously operating for long period
  • Pre-coating filtering system capable of continuously operating for long period

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so as to help understand the content of the present invention. Unless otherwise specified, the terms used in the present invention are conventional terms in the industry.

[0026] The pre-coating filtration system involved in the present invention can not only be applied to oil slurry filtration, but also to other raw materials to be filtered such as paraffin filtration, coal tar filtration, and dilute ammonium sulfate liquid filtration. This embodiment only uses the pre-coating filtration system The application in catalytic cracking oil slurry is taken as an example to describe the working principle and application process of the pre-coat filter system in detail.

[0027] refer to Figure 1-Figure 3 , the present invention provides a long-term continuous operation of the pre-coating filtration system, which includes a pre-coating unit, an auxil...

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Abstract

The invention discloses a pre-coating filtering system capable of continuously operating for a long period, and relates to the technical field of filtering devices. The system comprises a pre-coatingunit, an auxiliary unit and a filtering unit, the pre-coating unit comprises a pre-coating feeding device, a pre-coating tank and a pre-coating circulating pump, the auxiliary unit comprises an auxiliary feeding device, an auxiliary tank and an auxiliary pump, and the filtering unit comprises a blade type filter, a deslagging trolley and a filtrate tank; the pre-coating filtering system is furtherprovided with an oil slurry raw material valve, the blade type filter is provided with a filter shell and a plurality of sets of filter blades, and the filter blades are installed in the filter shell. The pre-coating filtering system is good in catalytic cracking slurry oil filtering effect, full automation and automatic filter switching can be achieved, solid impurities are prevented from blocking a filtering medium in a pre-coating mode before filtering, the service life of the filtering medium is greatly prolonged, and long-period continuous operation can be achieved.

Description

technical field [0001] The invention relates to the technical field of filtering devices, in particular to a long-period continuous operation pre-coating filtering system. Background technique [0002] The solid catalyst powder in the oil slurry is mainly fine crystal particles formed due to catalyst wear or thermal stress cracking under the high temperature and fluidization conditions of the catalytic cracking unit. These solid powders are highly dispersed in the oil slurry, and the solid content is about 3000-20000ppm. Due to the presence of impurities such as colloid, asphaltenes, sulfur, nitrogen and metal compounds in the oil slurry, which can promote and stabilize the dispersion of suspended particles, it is very difficult to separate the catalyst powder in the oil slurry. Due to the presence of solid impurities in the oil slurry, more solids not only intensify the erosion of pipelines and equipment, but also have the risk of blocking the furnace nozzle, which serious...

Claims

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Application Information

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IPC IPC(8): B01D37/02B01D29/03B01D29/52B01D29/66B01D29/72B01D29/84B01D29/90B01D35/12
CPCB01D29/03B01D29/52B01D29/66B01D29/72B01D29/843B01D29/906B01D35/12B01D37/02
Inventor 宋永飞张建龙陈涛
Owner 北京中科永亿科技有限公司
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