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Oil shale waste residue haydite and preparation method thereof

A technology of oil shale waste residue and shale waste residue, which is applied in the field of oil shale waste residue ceramsite and its preparation, can solve the problems of pollution, land occupation, etc., and achieve the effects of avoiding a large amount of accumulation, reducing environmental pollution, and increasing economic benefits

Inactive Publication Date: 2011-09-07
FUSHUN MINING IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of oil shale waste residue ceramsite and its preparation method. By adopting this method, oil shale waste residue can be turned into treasure, so as to solve the problems of land occupation and environmental pollution, and at the same time better achieve oil shale The purpose of comprehensive utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] ① Take oil 200 mesh oil shale residue 3000g, green shale 1850g, admixture 150g, put it into a ball mill and grind it for 35 minutes, and grind it into a 200 mesh mixture fine powder for later use;

[0019] ② Evenly mix the fine powder of the mixture with 900g of water, and use a ball forming plate to make raw meal balls;

[0020] ③ Dry the raw meal balls naturally for 24 hours;

[0021] ④Put the naturally dried raw meal balls into a drying oven and dry them at 100°C for 8 hours;

[0022] ⑤Put the dried raw meal balls into a continuous simulated industrial experimental furnace for calcination under a reducing atmosphere. The pre-calcination temperature is 700°C, and the preheating time is 20 minutes; the roasting temperature is 1180°C, and the roasting time is 15 minutes. finished product.

Embodiment 2

[0024] ①Take 3000g of 200-mesh oil shale waste residue, 250g of activated oil shale waste residue, 1500g of green shale, and 250g of admixture, put it into a ball mill for grinding for 35 minutes, and grind it into a 300-mesh mixture fine powder for later use;

[0025] ② Evenly mix the fine powder of the mixture with 1200g of water, and use a ball forming plate to make raw material balls;

[0026] ③ Dry the raw meal balls naturally for 24 hours;

[0027] ④Put the naturally dried raw meal balls into a drying oven and dry them at 100°C for 8 hours;

[0028] ⑤Put the dried raw meal balls into a continuous simulated industrial experimental furnace for calcination under a reducing atmosphere. The pre-calcination temperature is 500°C, and the preheating time is 15 minutes; the roasting temperature is 1150°C, and the roasting time is 20 minutes. finished product.

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Abstract

The invention discloses an oil shale waste residue haydite and a preparation method thereof. The oil shale waste residue haydite comprises the following components in percentage by weight: 50%-70% of oil shale waste residues, 0%-10% of activated oil shale waste residues, 20%-40% of green shales and 1%-5% of additives. The oil shale waste residue haydite has low stacking density being capable of reaching less than 500 levels and completely meeting the requirements for indexes of 'light aggregate' (GB / T17431-1998) first-rate products. The oil shale waste residue haydite is prepared by adopting the oil shale waste residues as main materials and the green shales instead of adhesives, thus the method not only has simple process, but also ensures that the oil shale waste residues are sufficiently utilized, thereby enhancing the utilization ratio, increasing the economic benefit, changing wastes into valuables, also preventing the mass accumulation of the oil shale waste residues and reducing the occupying quantity of lands and the environmental pollution; and in addition, the method has simple process course, small investment and low cost and is an oil shale waste residue fine chemical engineering and comprehensive utilization industrialization method with great prospect.

Description

1. Technical field [0001] The invention relates to an oil shale waste residue ceramsite and a preparation method thereof. 2. Background technology [0002] my country is rich in oil shale resources, and the recoverable shale oil resources are 12 billion tons, mainly distributed in Huadian, Nong'an, Jilin Province, Maoming, Guangdong, and Fushun, Liaoning, ranking fourth in the world. The main utilization methods of oil shale resources are shale oil extraction and direct combustion for power generation. However, due to the high ash content of oil shale, a large amount of waste residue will be generated after utilization, and a large area of ​​land will be occupied for stockpiling and there will be environmental pollution problems. Therefore, how to better comprehensively utilize oil shale residues and increase the added value of oil shale resources is a technical problem to be solved urgently. Oil shale waste residue is a barren raw material similar to volcanic ash containin...

Claims

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Application Information

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IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 韩放张振庭鲍明福高健赵鑫郭忠和
Owner FUSHUN MINING IND GROUP
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