Novel sludge ceramic aggregate production method

A sludge ceramsite and production method technology, applied in ceramic products, other household utensils, household utensils, etc., can solve the problems of easily polluting groundwater, occupying large land, etc., and achieve the effect of solving the problems of sludge treatment and recycling

Inactive Publication Date: 2012-11-21
彭尹华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods of treating sludge from urban sewage plants generally adopt sanitary landfill, land use, and incineration. Sanitary landfill occupies a large amount of land and uses a large number of mechanical equipment, which is easy to pollute groundwater, and the buried place should be far away from the urban area. In the face of reprocessing, there is a certain risk in land use, and the main factors restricting land use of sludge in heavy metals

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  • Novel sludge ceramic aggregate production method
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  • Novel sludge ceramic aggregate production method

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Experimental program
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Effect test

Embodiment 1

[0029] A kind of novel sludge ceramsite production method, the method step of the present invention is,

[0030] 1) Raw material preparation:

[0031] a. Sludge: sludge discharged from sewage treatment plants, with a moisture content of 20% to 40%;

[0032] b. Fly ash, the fineness of fly ash is required to be above 80 mesh, and the fly ash contains Al 2 o 3 The mass content is more than 30%;

[0033] c. Quartz sand, the fineness of the quartz sand is required to be above 200 mesh, and the mass content of silicon in the quartz sand is above 95%;

[0034] d. Potassium salt ore powder, the fineness of potassium salt ore powder is required to be above 80 mesh, and K in the potassium salt ore powder 2 O content greater than 25%, Na 2 O content greater than 25%;

[0035] 2) Ingredients: The weight percentage of the above sludge is 65%; fly ash 15%; quartz sand powder 15%; potassium salt mineral powder 5%, fully stirred evenly; 5mm ~ 10mm initial product;

[0036] 3) Firing:...

Embodiment 2

[0046] A kind of novel sludge ceramsite production method, the method step of the present invention is,

[0047] 1) Material preparation:

[0048] a. Sludge: sludge discharged from sewage treatment plants, with a moisture content of 20% to 40%;

[0049] b. Fly ash, the fineness of fly ash is required to be above 80 mesh, and the fly ash contains Al 2 o 3 The mass content is more than 30%;

[0050] c. Quartz sand, the fineness of the quartz sand is required to be above 200 mesh, and the mass content of silicon in the quartz sand is above 95%;

[0051]d. Potassium salt ore powder, the fineness of potassium salt ore powder is required to be above 80 mesh, and K in the potassium salt ore powder 2 O content greater than 25%, Na 2 O content greater than 25%;

[0052] 2) Material: The weight percentage of the above sludge is 75%; fly ash is 15%; quartz sand powder is 5%; potassium salt mineral powder is 5%, fully stirred evenly; 5mm ~ 10mm initial product;

[0053] 3) Firing:...

Embodiment 3

[0063] A kind of novel sludge ceramsite production method, the method step of the present invention is,

[0064] 1) Raw material preparation:

[0065] a. Sludge: sludge discharged from sewage treatment plants, with a moisture content of 20% to 40%;

[0066] b. Fly ash, the fineness of fly ash is required to be above 80 mesh, and the fly ash contains Al 2 o 3 The mass content is more than 30%;

[0067] c. Quartz sand, the fineness of the quartz sand is required to be above 200 mesh, and the mass content of silicon in the quartz sand is above 95%;

[0068] d. Potassium salt ore powder, the fineness of potassium salt ore powder is required to be above 80 mesh, and K in the potassium salt ore powder 2 O content greater than 25%, Na 2 O content greater than 25%;

[0069] 2) Ingredients: 75% by weight of the above sludge; 5% fly ash; 10% quartz sand powder; 10% potassium salt mineral powder, fully stirred evenly; 5mm ~ 10mm initial product;

[0070] 3) Firing: Put the initia...

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Abstract

The invention discloses a novel sludge ceramic aggregate production method, which comprises the following steps of: (1) preparing raw materials: a, sludge discharged by a sewage disposal plant with water content of 20-40 percent, b, fly ash with fineness of over 80 meshes and Al2O3 mass content of over 30 percent, c, quartz sand with fineness of over 200 meshes and silicon mass content of over 95 percent, and d, potassium salt ore powder of fineness of over 80 meshes, K2O content of greater than 25 percent and Na2O content of greater than 25 percent; (2) proportioning, i.e., taking 65-75 percent by weight of sludge, 5-15 percent by weight of fly ash, 5-15 percent by weight of quartz sand powder and 5-10 percent by weight of potassium salt ore powder and fully and uniformly stirring; and preparing an initial product with length of 5-20 mm and diameter of 5-10 mm through extrusion and granulation; and (3) firing. According to the novel sludge ceramic aggregate production method, the sludge can be completely treated and changed into things of value; and the novel sludge ceramic aggregate production method has the advantages of simple production process, low treatment cost and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of a ceramsite production method, in particular to the technical field of a novel sludge ceramsite production method. Background technique [0002] Sludge from urban sewage plants refers to the solid, semi-solid and liquid wastes produced by sewage treatment, containing a large amount of organic matter, rich in nutrients such as nitrogen and phosphorus, heavy metals and pathogenic bacteria, etc. The World Water Environment Organization has classified the sewage Sludge is renamed as biosolids. If it is discharged and discarded without treatment, it will cause serious pollution to the environment. With the popularization of sewage treatment facilities, the improvement of treatment rate and the deepening of treatment degree, the amount of sludge produced is bound to increase greatly. How to properly dispose of sludge from sewage plants and effectively use it as a new resource to turn waste into treasure has be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/622
Inventor 彭尹华
Owner 彭尹华
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