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Method for preparing synthesized cement of main material and additive by acetylene sludge

A technology for synthesizing cement and carbide slag, applied in cement production and other directions, can solve the problems of low profit and high cost, and achieve the effects of reducing grinding intensity, high profit and saving electric energy

Inactive Publication Date: 2010-02-10
王嘉兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the market and sales of Portland cement are optimistic, and have been in a stable momentum. However, due to the high cost of cement clinker, the problem has not been resolved.
Therefore, according to the fact that Portland cement mainly uses clinker and functional fillers, and the raw materials of clinker include limestone and clay, etc., the current market price still has the problem of low profit and high cost.

Method used

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  • Method for preparing synthesized cement of main material and additive by acetylene sludge
  • Method for preparing synthesized cement of main material and additive by acetylene sludge
  • Method for preparing synthesized cement of main material and additive by acetylene sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Clinker refining: Carbide slag is dehydrated, mixed and calcined to obtain cement clinker. The process is as follows:

[0023] Control the water content of 1200kg calcium carbide slag (1) at 20%, and stir it with clay according to the ratio of 1:03 (2) evenly press it into a 1560kg blank with a molding machine (3), put it into the calciner (4) at 550-650 Carbide slag and clay are dehydrated and decomposed into a mixture of calcium oxide, silicon oxide, aluminum and iron at a temperature above 100°C. After being cooled, the material is only 56% to obtain 873.6kg, which is pulverized into 60- 100 mm block clinker.

[0024] Refining additives: Carbide slag is purified, acidified and dehydrated. Its technological process is:

[0025] 400kg calcium carbide slag is modulated into emulsion and hydrochloric acid according to 1: 0.76 reaction in purifier (6), obtains calcium chloride aqueous solution and through suction filtration (7) obtains pure calcium chloride 475.27kg cla...

Embodiment 2

[0029] Clinker refining: Carbide slag is dehydrated, mixed and calcined to obtain cement clinker. The process is as follows:

[0030] Control the water content of 1200kg calcium carbide slag at 40%, stir it with clay according to the ratio of 1:0.6, press it into a 1920kg blank with a molding machine, put it into a calciner at a temperature of 650°C to dehydrate and decompose the calcium carbide slag and clay Become the mixture of calcium oxide and silicon oxide, aluminum, iron, and the material only has 56% to obtain 1075.2kg after being cooled at this time, and is crushed into 60-100 mm lumps with a pulverizer.

[0031] Refining additives: Carbide slag is purified, acidified and dehydrated. Its technological process is:

[0032] Prepare 400kg of calcium carbide slag into an emulsion and react it with hydrochloric acid at a ratio of 1:1.16 in a purifier to obtain an aqueous solution of calcium chloride. After suction filtration, 475.27kg of pure calcium chloride clarified li...

Embodiment 3

[0036] Clinker refining: Carbide slag is dehydrated, mixed and calcined to obtain cement clinker. The process is as follows:

[0037] Control the water content of 1200kg calcium carbide slag at 30%, stir it evenly with clay according to the ratio of 1:0.45, press it into a 1740kg blank with a molding machine, put it into a calciner at a temperature of 600°C to dehydrate and decompose the calcium carbide slag and clay Become calcium oxide and silicon oxide, aluminum, the mixture of iron, after cooling this moment material only has 56% to obtain 974.4kg, be pulverized into the block shape of 60-100 millimeter with pulverizer.

[0038] Refining additives: Carbide slag is purified, acidified and dehydrated. Its technological process is:

[0039] Prepare 400kg of calcium carbide slag to make an emulsion and react it with hydrochloric acid at a ratio of 1:0.96 in a purifier to obtain an aqueous solution of calcium chloride. After suction filtration, 600.34kg of pure calcium chlorid...

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Abstract

The invention discloses a method for preparing synthesized cement of main material and additive by acetylene sludge, comprising the main technical scheme: acetylene sludge and clay are refined into aggregate according to a certain proportion; the acetylene sludge is purified, acidified and refined into an additive, and finally the aggregate and the additive are synthesized into Portland cement according to a certain proportion. The method obtains higher profits for cement corporations and stably uses industrial scrap. The method also largely reduces the grinding strength on the grinding technology of the aggregate; because the powder of the acetylene sludge is fine, the acetylene sludge is ground slightly, thereby largely saving electric energy. The acetylene sludge is used as the main material of the cement as well as the additive of the cement, and thereby the acetylene sludge is an irreplaceable optimal raw material for producing the cement.

Description

Technical field: [0001] The invention relates to the technical field of comprehensive utilization of three wastes, in particular to a method for producing cement main material and additive synthetic cement with calcium carbide slag. technical background: [0002] At present, the market and sales of Portland cement are optimistic, and have been in a stable momentum. However, the high cost of cement clinker has not been resolved. Therefore, according to the fact that the components of Portland cement mainly use clinker and functional fillers, and the raw materials of clinker include limestone and clay, etc., the current market price still has the problem of low profit and high cost. If the cement clinker uses industrial waste calcium carbide slag, the situation will be different. This will not only win higher profits for the cement enterprise, but also make the industrial waste a stable use, which can be described as a good thing that kills two birds with one stone. Moreover,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/36C04B7/24
CPCY02P40/10
Inventor 王嘉兴
Owner 王嘉兴