Production of blocks from flyash by steaming and pressing process

A technology of autoclaved fly ash bricks and a manufacturing method, which are applied in the field of industrial and civil walls and basic building materials, and can solve the problems of land resource loss and the like

Inactive Publication Date: 2005-07-27
伍林元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of construction, a large number of traditional solid clay bricks are currently used as the main material of the construction industry, thus sacrificing a lot of precious land resources and causing a large loss of land resources in our country; on the other hand, in order to save energy, To improve the function of buildings, it is also necessary to develop lightweight, high-strength new wall and basic building bricks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] 1. Preparation of materials:

[0016] A. Fly ash:

[0017] The waste wet discharge fly ash discharged from the power plant is pumped into the ash tank through the pipeline pump with a mud pump. The ash storage tank is made of bricks and concrete, with a length and width of 30 meters to 50 meters and a depth of up to 10 meters; A crane is erected above the ash pond, and a grab bucket is hoisted under the crane. Driven by the motor, the grab grabs the fly ash and is sent by the crane to another aging pond for accumulation and dried for later use.

[0018] B. Slag

[0019] The slag is transported by car to the side of the conveyor batching hopper for standby.

[0020] C. Quicklime and gypsum:

[0021] After the quicklime and gypsum are crushed by the crocodile crusher, they are lifted to a height of 20-30 meters by the hoist, and sent to the silo, and then sent to a ball mill with a diameter of 1.5 meters and a length of 5.7 meters through the hopper to be ground into p...

example 2

[0040] 1. Preparation of materials:

[0041] The preparation of fly ash, quicklime and gypsum is the same as in Example 1, in addition, stone chips are added instead of slag, and the stone chips are also crushed by a crusher before ball milling.

[0042] 2. Ingredients:

[0043] The percentage content of various raw materials is as follows: fly ash: 52-58%, stone chips 32-36%, lime crystal 10-12%, gypsum 1-2%.

[0044] Stirring, digestion, wheel milling, and mechanical forming of the adobe bricks are then cured in the same way as in the same example, and the adobes are then steamed and cured at high temperature and high pressure in an autoclave to form.

[0045] The above-mentioned finished fly ash bricks are rectangular hexahedron in shape, with nominal dimensions of 240 mm in length, 115 mm in width and 53 mm in height. The dry weight of an autoclaved fly ash brick mixed with slag is 1.4 to 1.5 kg, the standard is calculated as 1.8 kg, and the weight of an autoclaved fly a...

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Abstract

Production of steam-pressing fly-ash brick with big blending account is carried out by batching dewatered fly-ash, slag or aggregate chips, lime crystal or plaster by proportioning, agitating, digesting, wheel milling, mechanical shaping, maintaining blanking brick, piling blank, and steam maintaining in steam-pressing kettle at high temperature and pressure. It achieves light weight, high strength, soil and energy saving, and no environmental pollution.

Description

Technical field: [0001] The invention relates to the field of building materials for industrial and civil walls and foundations. Background technique: [0002] In the field of construction, a large number of traditional solid clay bricks are currently used as the main material of the construction industry, thus sacrificing a lot of precious land resources and causing a large loss of land resources in our country; on the other hand, in order to save energy, To improve the function of buildings, it is also necessary to develop lightweight, high-strength new wall and basic building bricks. Invention content: [0003] The purpose of the present invention is to provide a large-volume autoclaved fly ash brick to replace the traditional solid clay brick, so as to achieve the effects of light weight, high strength, heat preservation, heat insulation, energy saving, environmental protection and waste utilization. [0004] A large-volume autoclaved fly ash brick made of fly ash, sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/08C04B18/10
CPCY02W30/91
Inventor 伍林元
Owner 伍林元
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