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Manganese slag-solid waste mixed sintering brick making method

A technology of mixed sintering and manganese slag, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of difficulty and complex production process of manganese slag bricks, and achieve the effect of lowering the sintering temperature

Active Publication Date: 2010-07-07
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these processes for producing wall materials have made great progress and are widely used in the construction industry, the production process of using manganese slag to make bricks is complex and difficult, and it requires considerable technical force and expertise to master its production technology and product quality in an all-round way. Production practice experience, there is no domestic precedent of using manganese slag solid waste mixed sintering to make bricks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dry a certain amount of manganese slag, shale and fly ash at 95°C to constant weight, mix and grind them together according to the mass ratio of manganese slag: shale: fly ash = 20:73:7 to meet the gradation requirements (raw material The maximum particle size of the particles does not exceed 2.5mm, 95% of which are below 2mm, more than 90% of which are below 1mm, and more than 70% of which are below 0.5mm), and the material under the sieve is the raw material, and then a certain amount of sodium humate Stabilizer (accounting for 3% of the raw material mass) and clear water (accounting for 25% of the raw material mass) were mixed evenly, aged for 3 days in the room, and made into a sample block with a specification of 240mm×115mm×53mm by a vacuum extruder, and then dried at 120°C 24h (or put it outdoors to dry naturally for 6 days, and finally put it into a tunnel kiln to raise the temperature to 1050°C at a rate of 60°C / h, keep it warm for 2h, and cool it with the kiln ...

Embodiment 2

[0021] Dry a certain amount of manganese slag, shale and fly ash at 110°C to constant weight, and then grind them separately to meet the gradation requirements (the maximum particle size of raw material particles is not more than 2.5mm, 95% of which are below 2mm, and 1mm The ones below 0.5mm account for more than 90%, and the ones below 0.5mm account for more than 70%). Take the material under the sieve and mix it into raw materials according to the mass ratio of manganese slag: shale: fly ash = 40:50:5, and then add a certain amount of humic acid Sodium stabilizer (accounting for 4% of the raw material mass) and clear water (accounting for 30% of the raw material mass) were stirred evenly, aged 2 days in the room, and made into a sample block with a specification of 240mm × 115mm × 53mm through a vacuum extruder, and then heated at 130°C Dry for 16 hours (or leave it outdoors to dry naturally for 7 days, and finally put it into a tunnel kiln to raise the temperature to 1000 d...

Embodiment 3

[0023] Dry a certain amount of manganese slag, shale and fly ash at 125°C to constant weight, and then grind them separately to meet the gradation requirements (the maximum particle size of raw material particles is not more than 2.5mm, 95% of which are below 2mm, and more than 1mm Those below 0.5mm account for more than 90%, and those below 0.5mm account for more than 70%). Take the under-sieve material and mix it into raw materials according to the mass ratio of manganese slag:shale:fly ash=70:27:3, and then add a certain amount of humic acid Sodium stabilizer (accounting for 5% of raw material quality) and clear water (accounting for 35% of raw material quality) are stirred evenly, and after indoor aging for 1d, a sample block with a specification of 240mm × 115mm × 53mm is made through a vacuum extruder, and then mixed at 140 ℃ drying for 8 hours (or outdoor natural air drying for 8 days, and finally placed in a tunnel kiln to raise the temperature to 950 ℃ at a rate of 40 ...

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Abstract

The invention discloses a manganese slag-solid waste mixed sintering brick making method, which includes that manganese slag, shale and fly ash which are dried to have constant weight are mixed and ground together or are respectively ground and then mixed in certain ratio, and are sieved according to a certain gradation requirement to obtain preparation materials of solid waste mixed sintering brick, then a certain amount of sodium humate stabilizer is added and uniformly stirred with clear water and is aged for a period of time, then is produced to be samples by an extruder, at last the finished products of solid waste mixed sintering bricks are obtained by the heat treatment processes of drying, roasting, cooling and the like. The invention uses electrolytic manganese dioxide slag as the main material, adopts the shale to replace clay as supplementary raw material, and adds the fly ash to adjust the components on the basis, the manganese slag-solid waste sintering brick is prepared through the processes of proportioning, preprocessing, patternmaking, drying, roasting and cooling, and the utilization of a large amount of solid waste resource is realized.

Description

Technical field [0001] The present invention relates to the technical field of resource utilization of industrial solid waste, and in particular to a method of mixing and sintering the washing and filtering residue (hereinafter referred to as "manganese residue") in the production process of electrolytic manganese dioxide with solid waste such as shale and fly ash. Brick craft. Background technique [0002] Since the reform and opening up, with the continuous development of the national economy and science and technology, urban and rural construction and real estate development have been in full swing, and the production and application of various building materials have increased significantly. For many years, the dominant wall material in my country's construction industry has been solid clay bricks. The traditional production method has long been followed by backward technology, crude equipment, single products, land destruction, environmental pollution, and high coal con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00C04B18/08C04B18/14
CPCY02W30/91
Inventor 彭兵柴立元王佳张金龙张强闵小波王云燕杨志辉王海鹰
Owner CENT SOUTH UNIV
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