A bag filter
A bag dust collector and bag dust removal technology, which is applied to chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve the problems of bag dust collectors, large land occupation, and large investment capital, etc., to reduce land occupation Area and cost reduction effects
Inactive Publication Date: 2018-09-18
浙江锦运再生资源股份有限公司
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Problems solved by technology
[0004] 1. Due to the use of the spray device, the used flue gas contains a large amount of water vapor, and the heating in the front electrostatic heating area further increases the saturation value of the water in the flue gas, and the water vapor will go to the next step of the bag dust removal operation , when collecting dusty gas with high humidity, the bag filter is prone to the phenomenon of "pasting bags" due to condensation of smoke and dust, which greatly reduces the air flow rate
[0005] 2. The overall area is large, and it uses three independent systems of spraying, electrostatic and cloth bag, which not only occupies a large area, but also invests a lot of money, so it is not suitable for promotion
[0006] 3. The removal effect of ultra-fine particles is not good. At present, it is difficult to remove ultra-fine particles with the mesh number setting of the hole of the bag, and as long as the ultra-fine particles enter the bag, they are regarded as part of the clean air
In the prior art, there is also a technology to return the clean air to the bag filter, but it consumes a lot of energy, and the removal of ultrafine particles is not only untargeted, but the effect is not good
Method used
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[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0034] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as use...
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This application proposes a bag filter, which includes a spray tower (1), a gas-liquid cyclone (2), and a bag dust removal unit (3) connected in sequence, and also proposes a means of draining water after spraying. The process is the process of flue gas cooling. The gas-liquid cyclone can be used to centrifuge the water in the flue gas to a large extent to prevent the bag from sticking in the bag filter. During the drainage process, there is a diversion function of the rotating plate (21), which guides the condensed water at the top and the centrifugal water of the gas-liquid cyclone to the lower cone of the cyclone. In order to prevent the air flow from disturbing the water, When the cross plate is used, when the water flows into the area of the cross plate, the flue gas flow will not disturb the water, and the water carries large particles and is discharged downward.
Description
technical field [0001] The invention relates to a bag dust collector, in particular to a bag dust collector with spraying, dehumidification and high-efficiency dust removal devices, and especially has better dust removal effect on ultrafine particles. Background technique [0002] With the rapid development of the world economy, people are also facing severe environmental problems while enjoying the benefits brought by economic and technological development. In particular, North China and Central China have been plagued by severe air pollution in recent years, among which coal-fired fly ash particles are one of the main sources of air pollutants in my country, and the pollutants produced by coal-fired power plants and industrial boilers are coal-fired fly ash Major source of particulate and sulfurous gases. [0003] CN106823651A discloses a high-efficiency composite dust collector. The composite dust collector includes a spray dust removal device and an electric bag composit...
Claims
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IPC IPC(8): B01D50/00
CPCB01D50/10
Inventor 林汝云张涛
Owner 浙江锦运再生资源股份有限公司