Device and method for purification of flue gas with gasifier slag

A gasifier and slag technology, applied in chemical instruments and methods, gasification processes, combined devices, etc., can solve problems such as unmanageable processing

Inactive Publication Date: 2017-06-20
GUANGDONG ZHENGPENG BIOMASS ENERGY TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Although the wet slag of the biomass gasifier is no

Method used

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  • Device and method for purification of flue gas with gasifier slag

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Embodiment Construction

[0018] refer to figure 1 , which shows the specific structure of the preferred embodiment of the present invention. The structural characteristics of each part of the present invention will be described in detail below, and if there is a description of the direction (up, down, left, right, front and back), it is based on figure 1 The shown structure is a reference description, but the actual use direction of the present invention is not limited thereto.

[0019] The present invention provides a device for purifying flue gas by using gasifier slag, which includes a slag filtering device 1, a slag drying device 2 and a flue gas purification system, and the flue gas purification system includes a spray dedusting tower 3 and a circulating water tank 4 , the spray dedusting tower 3 and the circulating water tank 4 are connected by a circulating water pipe 5, the circulating water pump 6 is arranged on the circulating water pipe 5, and the slag filtering device 1 has a filter water...

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Abstract

Relating to the technical field of biomass gasifier slag and flue gas treatment, the invention discloses a device and method for purification of flue gas with gasifier slag. The device comprises a slag filtration apparatus, a slag drying apparatus and a flue gas purification system. The flue gas purification system comprises a spray dust removal tower and a circulating water tank, the spray dust removal tower and the circulating water tank are connected through a circulating water pipe, the slag filtration apparatus has a filter water outlet communicated with the circulating water tank, the slag drying apparatus is provided with a flue gas inlet and a flue gas outlet, and the flue gas outlet is connected to the spray dust removal tower. After removing part of water from the slag in the slag filtration apparatus, the slag is dried through flue gas, the water generated by the slag is thrown into the spray dust removal tower to reduce the flue gas sulfur dioxide emission concentration, and at the same time a dust removal effect can be achieved through spray. The device and the method provided by the invention can realize comprehensive utilization of biomass gasifier slag, reduces the flue gas sulfur dioxide emission, also realizes slag drying, the dried slag has low water content and high carbon content, and achieves better sale.

Description

technical field [0001] The invention is used in the technical field of biomass gasifier slag and flue gas treatment, and in particular relates to a device and method for purifying flue gas by using gasifier slag. Background technique [0002] Biomass gasifier slag is one of the products of the gasifier. Its dry basis has a high carbon content and almost no volatile matter. It can be used in the environmental protection carbon manufacturing industry and the incense industry. However, in the biomass gasification heating industry, as the system process and gasification equipment are increasingly optimized, there is a certain contradiction between improving the energy efficiency of the system and the carbon content of the slag. It is less than 60%, and most gasifiers adopt wet slag discharge, resulting in the carbon content of wet slag being less than 30%. Excessively high moisture content and low carbon content virtually increase the cost of slag transportation and dehydration...

Claims

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Application Information

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IPC IPC(8): C10J3/72B01D50/00B01D53/78B01D53/50
CPCB01D53/504C10J3/72C10J2300/1628C10J2300/16B01D50/40
Inventor 苏德仁李振新李强周亚军陈琦勇张大林
Owner GUANGDONG ZHENGPENG BIOMASS ENERGY TECH
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