Process for producing bricks by using saponification residual slag

A residue and saponification technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of secondary pollution, land occupation, etc., and achieve the goal of saving land resources, simple equipment and process, and simple production process Effect

Active Publication Date: 2012-12-12
山东滨化新型建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a process for making bricks using saponification residues, so that the saponification residues produced in the production process of propylene oxide can be turned from waste to treasure, and the problems of land occupation and secondary pollution can be solved, so that the saponification residues can be obtained Effective utilization to achieve the purpose of resource recycling

Method used

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  • Process for producing bricks by using saponification residual slag

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] A kind of technology utilizing saponification residue to make brick, comprises the steps:

[0021] (1) Pre-treatment of raw materials: crush the aggregates, fly ash, and aggregates in the saponification residue with a dry content of calcium hydroxide greater than 30%, so that the particle size of the aggregate is 2 to 5mm, and the particle size of the saponification residue is The diameter is less than 3mm to improve the mixing degree of subsequent materials and enhance the probability of reaction; the loss on ignition of the fly ash is less than 8%, the content of silicon dioxide and aluminum oxide is greater than 70%, and the pre-treated raw materials are respectively fed into In each storage hopper 2 in the batching machine 1;

[0022] (2) Batching: the pre-treated materials stored in each storage hopper 2 are according to the percentage by weight: 20% of saponification residue, 15% of aggregate, and 65% of fly ash are batched by batching machine 1;

[0023] (3) Mat...

Embodiment 2

[0028] A kind of technology utilizing saponification residue to make brick, comprises the steps:

[0029] (1) Pre-treatment of raw materials: crush the aggregates, fly ash, and aggregates in the saponification residue with a dry content of calcium hydroxide greater than 30%, so that the particle size of the aggregate is 2 to 5mm, and the particle size of the saponification residue is The diameter is less than 3mm to improve the mixing degree of subsequent materials and enhance the probability of reaction; the loss on ignition of the fly ash is less than 8%, the content of silicon dioxide and aluminum oxide is greater than 70%, and the pre-treated raw materials are respectively fed into In each storage hopper 2 in the batching machine 1;

[0030] (2) Batching: the pre-treated materials stored in each storage hopper 2 are according to the percentage by weight: 35% saponification residue, 30% aggregate, and 35% fly ash are batched by the batching machine 1;

[0031] (3) Material...

Embodiment 3

[0036] A kind of technology utilizing saponification residue to make brick, comprises the steps:

[0037] (1) Pre-treatment of raw materials: crush the aggregates, fly ash, and aggregates in the saponification residue with a dry content of calcium hydroxide greater than 30%, so that the particle size of the aggregate is 2 to 5mm, and the particle size of the saponification residue is The diameter is less than 3mm to improve the mixing degree of subsequent materials and enhance the probability of reaction; the loss on ignition of the fly ash is less than 8%, the content of silicon dioxide and aluminum oxide is greater than 70%, and the pre-treated raw materials are respectively fed into In each storage hopper 2 in the batching machine 1;

[0038] (2) Batching: according to the percentage by weight, the pre-treated materials stored in each storage hopper 2 are: 30% saponification residue, 25% aggregate, and 45% fly ash are batched by the batching machine 1;

[0039] (3) Materia...

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Abstract

The invention provides a process for producing bricks by using saponification residual slag. The process comprises processes of pretreatment of raw materials, batching, mixing and humidifying of materials and forming of adobe. During batching, materials comprise, by weight percentage, 20%-35% of the saponification residual slag, 15%-30% of aggregate and 35%-65% of fly ash and the batching is conducted through a batching machine. By the aid of the process, during steam curing process, calcium hydroxide and silicon dioxide and aluminium oxide in the fly ash are subjected to chemical reaction, hydrated calcium silicate and hydrated calcium aluminate are produced, a layer of hydration products is formed on surfaces of the fly ash and other mixing materials, so that the fly ash and other mixing materials are cemented together, a wall material with certain physical and mechanical properties is formed, and the strength of bricks is more than mu 10. The process is simple, a lot of residual slag can be processed, devices are simple, clay bricks can be replaced, land resources are saved, no environment pollution exists, wastewater cannot be produced and secondary solid waste cannot be produced.

Description

technical field [0001] The invention relates to waste resource recycling technology in the production of propylene oxide by chlorohydrin method, in particular to a brick-making process of saponification residue. Background technique [0002] The production of propylene oxide by the chlorohydrin method is a traditional process for producing propylene oxide in my country. It has the characteristics of large operating flexibility, short process, mature process, good selectivity, high product yield, and stable and safe operation of the device. However, in the process of producing propylene oxide, a kind of industrial waste residue - saponification residue will be discharged, which is essentially calcium hydroxide [ie Ca(OH) 2 ], mainly saponification residue solid waste, has not been developed and utilized for many years, and is generally used as roadbed materials outside, due to the influence of road construction season, it needs to be temporarily stored. It not only occupies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/30
CPCY02W30/91
Inventor 李德敏任元滨黄元德惠萌萌陶立新
Owner 山东滨化新型建材有限责任公司
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