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Furnace calcification desulphurization mineral powder material

A mineral powder, alkaline technology, applied in the field of sulfur removal products in industrial combustion furnaces, can solve the problem of low calcium content and purity

Inactive Publication Date: 2014-02-26
QUJING HUSN CHEM RAW MATERIALS PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To make up for the current problem of low calcium content in raw materials to obtain higher desulfurization efficiency

Method used

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Examples

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example

[0013] Take the production of 1 ton of furnace calcified desulfurization mineral powder material as an example. For broken alkaline tuff, bluestone, horse tart, limestone, and silica, take the ingredients within the weight percentage range of each component given in the technical plan.

[0014] 1. 265 kg of alkaline tuff, 50 kg of bluestone, 215 kg of horse tooth stone, 295 kg of limestone, and 175 kg of silica.

[0015] 2. 250 kg of alkaline tuff, 60 kg of bluestone, 210 kg of horse tooth stone, 275 kg of limestone, and 205 kg of silica.

[0016] 3. 295 kg of alkaline tuff, 80 kg of bluestone, 70 kg of horse tooth stone, 270 kg of limestone, and 285 kg of silica.

[0017] 4. 300 kg of alkaline tuff, 100 kg of bluestone, 150 kg of horse tooth stone, 300 kg of limestone, and 150 kg of silica.

[0018] 5. 350 kg of alkaline tuff, 55 kg of bluestone, 75 kg of horse tooth stone, 330 kg of limestone, and 190 kg of silica.

[0019] Example of production process:

[0020] 1. The a...

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Abstract

The invention relates to a furnace calcification desulphurization mineral powder material, comprising the following components in percentage by weight: 10-40 parts of alkaline tuff, 5-10 parts of bluestone, 10-25 parts of horse tartar, 15-35 parts of limestone and 10-30 parts of silica. Crushed alkaline tuff, bluestone, horse tartar, limestone and silica are weighed and prepared according above weight percentages. All the raw materials are crushed and dried, the mixture is ground into 50-150 meshes in a ball grinding mill, and no particulate mineral material less than 50 meshes exist, and thus the product is obtained. The alkaline tuff is utilized, and based on adsorbability, hydroscopicity and expansibility of the alkaline tuff, contact area with SO2 gas and adsorption capacity to SO2 gas in a desulphurizing process are improved, and desulphurization degree can reach 97%.

Description

technical field [0001] The invention relates to a product used for desulfurization in an industrial combustion furnace, in particular to a calcified desulfurization mineral powder material in the furnace. Background technique [0002] There is a large amount of SO in industrial combustion furnaces 2 For gas, the national sulfur dioxide emission standard is 900mg / m3, and combustion waste gas without desulfurization cannot be discharged. Therefore, the desulfurization effect is the key to whether an enterprise can discharge combustion exhaust gas. At present, desulfurization technology is widely used in circulating fluidized bed boilers and low-sulfur coal users. Desulfurization agents (limestone, dolomite, slaked lime or sodium bicarbonate, etc.) are sprayed into the furnace. The agent is decomposed into CaO or MgO, and then reacts with SO2 to generate calcium sulfate to achieve the purpose of desulfurization. In addition, the purity and moisture content of limestone are r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10
Inventor 张林伟
Owner QUJING HUSN CHEM RAW MATERIALS PLANT
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