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Method for preparing desulfurizing agent of thermal power plant by utilizing carbide slag and special equipment thereof

A technology for thermal power plants and calcium carbide slag, which is applied in the field of preparing desulfurizers for thermal power plants, which can solve the problems of large production equipment, high requirements for process methods, and high requirements for equipment, so as to shorten the length of equipment and prevent environmental pollution , the effect of simple equipment

Active Publication Date: 2013-01-23
SHIHEZI DALU IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current comprehensive treatment and utilization of calcium carbide slag is mainly to reduce it to quicklime as a raw material for calcium carbide production or to manufacture cement. Large, so the cost of use is high, and it is very difficult to implement

Method used

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  • Method for preparing desulfurizing agent of thermal power plant by utilizing carbide slag and special equipment thereof
  • Method for preparing desulfurizing agent of thermal power plant by utilizing carbide slag and special equipment thereof
  • Method for preparing desulfurizing agent of thermal power plant by utilizing carbide slag and special equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: refer to Figure 1~2 , is a schematic structural diagram of the calcining equipment used in Example 1 of the present invention. The calcining equipment used in the present invention includes a rotatable cylindrical barrel 1 inclined to the horizontal. The high end of the cylindrical barrel 1 is provided with a raw material inlet 7, and the low end is provided with a burner 6. The entire cylindrical barrel 1 is arranged from front to back It is divided into a preheating zone, a heating zone and a roasting zone, and the end of the cylindrical cylinder 1 is provided with a finished product outlet 8 on a circumference around the cylinder wall, and a trumpet-shaped cooling cylinder is provided on the outside of the finished material outlet 8. 4. The cylindrical tube 1 and the trumpet-shaped cooling tube 4 are provided with cooling tube pillars 5, and the burner 6 is a jet-type coal-fired burner. A drying device is provided on the outer wall of the middle part o...

Embodiment 2

[0033] Example 2: refer to image 3 , is a schematic structural diagram of the calcining equipment used in Example 2 of the present invention. Compared with Embodiment 1, the difference of this embodiment is that: the inner wall of the trumpet-shaped cooling cylinder 4 is also provided with a helical pusher plate.

Embodiment 3

[0034] Example 3: Compared with Embodiment 1, the difference of this embodiment is that the burner 6 is a gas burner.

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Abstract

The invention discloses a method for preparing a desulfurizing agent of a thermal power plant utilizing carbide slag and special equipment thereof. The method comprises the following steps of: taking the carbide slag as a raw material; and crushing, removing impurities, calcining, cooling and sieving to obtain the desulfurizing agent. Compared with the prior art, the method is simple in process, equipment used by the process is very simple and the machining cost is low; and the carbide slag is sufficiently utilized so that a resource is saved and the environmental pollution is prevented.

Description

technical field [0001] The invention relates to a method for preparing a desulfurizing agent for a thermal power plant by utilizing calcium carbide slag and special equipment thereof. Background technique [0002] Carbide slag is the waste residue produced after the hydrolysis of calcium carbide in the process of industrial production of acetylene gas, polyvinyl chloride, polyvinyl alcohol, etc. As calcium carbide slag is an industrial waste that is difficult to handle, according to statistics, the cumulative domestic stockpile has reached 130 million tons. Because the previous recycling process of calcium carbide slag is relatively complicated and requires high technology and equipment, domestic manufacturers A large part of it is piled up or landfilled with calcium carbide slag. [0003] With the continuous expansion of domestic PVC, PVA and other chemical products, the amount of carbide slag will increase. These discarded calcium carbide slags are easy to pollute th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/48B09B3/00
Inventor 陆生贵
Owner SHIHEZI DALU IND & TRADE
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