Technique for producing energy-saving sintering brick by silt

A technology for sintering bricks and silt, applied in the field of building materials, can solve problems such as environmental pollution and damage, and achieve the effects of high microporosity, energy saving and resource saving.

Inactive Publication Date: 2008-09-17
XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect that this new technology solves lies within its ability to use much larger amounts of waste material compared to previous methods while still maintaining high efficiency for heat transfer or better thermal properties. This results in less fuel consumption during manufacturing processes and improved productivity at lower cost over traditional methods like kilns used by industry today.

Problems solved by technology

There have been significant environmental issues associated with treating domestic wastewater containing high levels of suspended solids (SS) due to excessive amounts generated during traditional methods for processing them. These SS particles may cause harm or even lead to diseases if they enter human bodies through ingestion. Therefore, finding ways to efficiently dispose of these wastes without causing negative effects on their environment becomes crucial.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The composition and weight percentage of raw materials for making the energy-saving fired bricks in this embodiment are: 50% of silt, 50% of shale or clay.

[0014] The preparation process of the present embodiment comprises the following steps:

[0015] (1) Raw material preparation and processing

[0016] Firstly, the sludge with a high moisture content is dehydrated to a moisture content of 30-40% by thermal drying, and then pretreated by crushing, and then fully mixed with the siliceous binder through high-efficiency raw material preparation technology and equipment. Uniform training, improve the plasticity of raw materials, and provide guarantee for molding performance.

[0017] (2) aging

[0018] The mixture in step (1) contains a certain amount of water after being processed, and enters the aging warehouse for aging. On the one hand, the raw materials are fully homogenized to increase the plasticity of the raw materials; on the other hand, the continuity of prod...

Embodiment 2

[0024] The composition and weight percentage of raw materials for making the energy-saving fired bricks of this embodiment are: 40% of silt, 60% of shale or clay.

[0025] The preparation process of this embodiment is the same as that of Example 1.

Embodiment 3

[0027] The composition and weight percentage of the raw materials for making the energy-saving sintered bricks in this embodiment are: 10% of silt, 90% of shale or clay.

[0028] The preparation process of this embodiment is the same as that of Example 1.

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Abstract

The invention relates to a method for producing energy-saving sintered bricks from mud. The sintered brick is made from river mud, municipal sludge and sea mud as raw material, by mixing with silica-based inorganic binder at a certain proportion, ageing, extruding with a extrusion molding machine to obtain blanks, cutting the blanks with a cutter, drying, sintering and burning. The invention makes full use of mud and the additional amount of mud is high up to 50%. The invention realizes energy and resource conservation and helps develop the circular economy and realize the comprehensive utilization of resources. The produced energy-saving sintered brick has the advantages of high porosity and good heat-insulation effect. During the sintering process, the flue gas is circularly treated, the exhaust gas is treated with acidic and alkaline solutions to remove harmful substances (such as dioxin) from the exhaust gas, and harmful substances such as heavy metals are solidified, therefore, the whole production process and the final product do not cause environmental pollution or hazard.

Description

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Claims

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Application Information

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Owner XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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