River bottom sludge sintered ceramsite and preparation method thereof

A technology of silt and ceramsite, which is applied in the field of river silt sintered ceramsite and its preparation, can solve the problems that silt cannot be effectively used, silt is difficult to store, and land is occupied, so as to achieve good social and economic benefits, save land, The effect of low water absorption

Inactive Publication Date: 2018-06-12
THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to store a large amount of silt generated by cleaning the river, occupying land and polluting the environment
[0003] At present, most of the utilization of silt is backfilling, and a small amount is used to make building materials, and silt has not been effectively utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of river bottom mud sintered ceramsite of the present invention comprises the following steps:

[0026] (1) Measure the river bottom silt, Yellow River silt, fly ash, coal powder and water according to the ratio, and mix them evenly to prepare raw pellets;

[0027] (2) Dry the raw meal balls in a drying box;

[0028] (3) Place the dried raw meal balls in a calciner for preheating, sintering and cooling;

[0029] (4) Cool naturally in the air to get sintered ceramsite.

[0030] In the step (1), the river bottom silt, the Yellow River silt and fly ash are dried to a constant weight, and the dried river bottom silt and the Yellow River silt are ground to a particle size of less than 0.08mm; then, the After sieving, the river bottom silt, Yellow River silt, fly ash and coal powder are weighed to a certain weight and put into a mixer for pre-mixing; take a certain amount of water and add it to the raw materials that have been pre-mixed, and continue ...

Embodiment 1

[0036] A kind of river bottom mud sintered ceramsite, is made up of the raw material of following weight part:

[0037] 70 parts of river bottom silt, 55 parts of Yellow River sediment, 30 parts of fly ash, 5 parts of pulverized coal, and 35 parts of water.

[0038] Its preparation method comprises the following steps:

[0039] (1) Dry the bauxite tailings and volcanic ash to constant weight, at this time, the moisture content of bauxite tailings and volcanic ash is less than 15%;

[0040] (2) Grinding the dried bauxite tailings and volcanic ash to a particle size of less than 0.08mm;

[0041] (3) Weigh the bauxite tailings, volcanic ash and coal powder after sieving to a certain weight according to the ratio;

[0042] (4) Put the weighed three raw materials in a mixer and stir evenly;

[0043] (5) Arrange the proportioning and weighing of water, then add it to the raw materials that have been stirred evenly, and continue stirring;

[0044] (6) Manufacture the raw material...

Embodiment 2

[0049] The sintered ceramsite of river bottom mud is composed of the following raw materials in parts by weight: 50 parts of river bottom mud, 35 parts of Yellow River silt, 20 parts of fly ash, 3 parts of coal powder and 27 parts of water.

[0050] Its preparation method comprises the following steps:

[0051] (1) Dry the bauxite tailings and volcanic ash to constant weight, at this time, the moisture content of bauxite tailings and volcanic ash is less than 15%;

[0052] (2) Grinding the dried bauxite tailings and volcanic ash to a particle size of less than 0.08mm;

[0053] (3) Weigh the bauxite tailings, volcanic ash and coal powder after sieving to a certain weight according to the ratio;

[0054] (4) Put the weighed three raw materials in a mixer and stir evenly;

[0055] (5) Arrange the proportioning and weighing of water, then add it to the raw materials that have been stirred evenly, and continue stirring;

[0056] (6) Manufacture the raw materials into raw balls w...

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Abstract

The invention especially relates to river bottom sludge sintered ceramsite and a preparation method thereof. According to the river bottom sludge sintered ceramsite and the preparation method thereof,the sintered ceramsite prepared by utilizing river bottom sludge, yellow river silt and coal ash as main raw materials is superior to the national standard and has good performance of a high strength, a low water absorption rate and the like. Therefore, circular economy of river improvement is developed, land is saved, pollutant discharge is reduced, production cost is reduced, and good social benefits and economical benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to sintered ceramsite from river bottom mud and a preparation method thereof. Background technique [0002] River bottom silt is soil and a small amount of fine sand deposited at the bottom of the river or at the water's edge. Accumulated over time, the river bed becomes higher, the water storage capacity of the river is small, and some places may even stop flowing. It is difficult to store a large amount of silt generated by clearing the river, occupying land and polluting the environment. [0003] At present, most of the utilization of silt is backfilling, and a small amount is used to make building materials, and the silt has not been effectively utilized. [0004] Based on the above situation, the present invention proposes a river bottom silt sintered ceramsite and a preparation method thereof, in which a mixture is prepared by adding Yellow River silt to prep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/135C04B33/138C04B38/06C04B18/02
CPCC04B18/027C04B33/132C04B33/1352C04B33/138C04B38/068C04B2235/422C04B2235/606C04B2235/656C04B2235/6567C04B2235/77C04B2235/96Y02P40/60
Inventor 闫传霖崔效华张月峰赵春光温海滨王宗源高波常浩然刘浩之
Owner THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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