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Method for preparing building ceramsite from quartz sand tailing

A technology of quartz sand and tailing mud, applied in the application field of quartz sand, can solve the problems of high cost and other problems, and achieve the effects of improving the yield, not easy to deform and crack, and preventing voids and even cracks.

Inactive Publication Date: 2020-03-27
成都南联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high cost of high-hardness building ceramsite in the prior art, a method for preparing building ceramsite from quartz sand tailings is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing building ceramsite by using quartz sand tailings is characterized in that it comprises the following steps:

[0027] (1) Material preparation: transport the quartz tailings stored in the silo as a backup;

[0028] (2) Feeding: put the prepared quartz tailings into the feeder for conveying, and establish a supply line for continuous feeding;

[0029] (3) Dispersion: Put the quartz tailings and sludge transported from step (2) into a disintegrator for disintegration, break up larger agglomerates for subsequent processing, and disintegrate the quartz The tailings and sludge are evenly mixed;

[0030] (4) Firing in a rotary kiln: put the mixed raw materials that have been dispersed and evenly mixed in step (3) into a rotary kiln for roasting until the mixed raw materials have a stable size and increased strength to obtain primary pottery;

[0031] (5) Ball making: put the raw materials fired through the rotary kiln into the ball making machine in st...

Embodiment 2

[0039] On the basis of Example 1, 30 parts by weight of shale powder, 20 parts of solid waste powder, and 8 parts of clay were added to the sludge, and 120 parts of sludge were added to make sludge mixture and quartz sand tailings. scattered.

[0040] Preferably, in step (4), the raw materials are calcined in five temperature zones from high to low in the rotary kiln, that is, through the low temperature zone of 200°C, the medium and low temperature zone of 500°C, the medium temperature zone of 750°C, and the medium temperature zone of 1000°C. High temperature zone, 1100 ℃ ultra high temperature zone.

[0041] Preferably, in the step (5), the ball making machine makes the raw material into a sphere with a diameter of 8 cm, and air-dries it naturally for 72 hours after processing and molding.

Embodiment 3

[0043] On the basis of Example 1, 25 parts by weight of shale powder, 15 parts of solid waste powder, and 5 parts of clay were added to the sludge, and 100 parts of sludge were added to make sludge mixture and quartz sand tailings. scattered.

[0044] Preferably, in step (4), the raw materials are calcined in five temperature zones from high to low in the rotary kiln, that is, through the low temperature zone of 150°C, the medium and low temperature zone of 350°C, the medium temperature zone of 625°C, and the middle temperature zone of 875°C. High temperature zone, 1050 ℃ ultra high temperature zone.

[0045] Preferably, in the step (5), the ball making machine makes the raw material into a sphere with a diameter of 6 cm, and air-dries it naturally for 72 hours after processing and molding.

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Abstract

The invention discloses a method for preparing building ceramsite from quartz sand tailing, belongs to the technical field of quartz sand application, and solves the problem of huge cost of high-hardness building ceramsite in the prior art. The method comprises the following steps: (1) preparing materials; (2) feeding; (3) scattering, namely, respectively putting the conveyed quartz tailing and sludge into a scattering machine for scattering; (4) firing in a rotary kiln, namely, putting the mixed raw material which is scattered and uniformly mixed in the step (3) into a rotary kiln for roasting until the size of the mixed raw material is stable and the strength is increased, so as to obtain a primary ceramic material; (5) pelletizing, namely, putting the raw material fired in the rotary kiln in the step (4) into a pelletizing machine to be processed into spheres; (6) calcining, namely, putting the spherical raw material processed and formed by the pelletizing machine in the step (5) into a calcining machine for calcining to obtain a high-hardness and high-strength finished ceramsite product; (7) burdening; and (8) conveying. The ceramsite is high in hardness and low in cost.

Description

technical field [0001] The invention belongs to the technical field of quartz sand application, and in particular relates to a method for preparing building ceramsite by utilizing quartz sand tailings. Background technique [0002] Ceramsite, as the name suggests, is ceramic particles. Most of the appearance characteristics of ceramsite are round or elliptical spheres, but there are also some gravel-like ceramsites that are not round or elliptical spheres, but irregular gravel. The shape of ceramsite varies from process to process. Its surface is a hard shell, which is pottery or enamel, which has the function of water-proof and air-retaining, and gives ceramsite high strength. Because there are many raw materials for the production of ceramsite, and there are many varieties of ceramsite, so there are many colors. The color of roasted ceramsite is mostly dark red and ocher red, and some special varieties are gray-yellow, gray-black, gray-white, blue-gray, etc. Due to the...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/32C04B38/00
CPCC04B33/132C04B33/1324C04B33/32C04B38/009C04B2235/656Y02P40/60
Inventor 曾伟侯龙
Owner 成都南联科技有限公司
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