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Plate-shaped sludge kiln harmlessness treatment system and process for domestic sludge

A harmless treatment of domestic sludge, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc. Increase and other problems, to achieve the effect of automatic control, small equipment footprint, and convenient automatic control

Pending Publication Date: 2019-06-07
TANGSHAN CERAMIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sludge pump is not suitable for transporting plate-shaped sludge. Water needs to be added to increase the moisture content of the sludge to more than 80% before transporting, which causes energy waste and increases costs.
At present, the sludge treatment method is mainly realized by reducing the amount of sludge and leaving the factory, but the treatment method of reducing the amount of leaving the factory will cause the increase of sludge disposal costs and costs, resulting in serious restrictions on the promotion and development of sludge reduction
In addition, the existing sludge treatment systems and devices have complex structures, large footprints, complex operation processes, and are not easy to control, which is not conducive to popularization and use.

Method used

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  • Plate-shaped sludge kiln harmlessness treatment system and process for domestic sludge
  • Plate-shaped sludge kiln harmlessness treatment system and process for domestic sludge
  • Plate-shaped sludge kiln harmlessness treatment system and process for domestic sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0056] A kiln-coordinated harmless treatment system for plate-shaped domestic sludge, including a crushing system, a first conveying system, a gas drying pulverizer 4, a gas-solid separation system, a storage bin 7, a second conveying system, and a rotary kiln;

[0057] The crushing system includes a feeding device and a crusher 1, the downstream of the feeding device is connected to the crusher 1, and the discharge port of the crusher 1 is connected to the first conveying system;

[0058] The upstream of the first conveying system is connected to the discharge port of the crusher 1, and the downstream of the first conveying system is connected to the gas drying pulverizer 4;

[0059] The gas drying pulverizer 4 includes a wet sludge particle inlet 41, a hot air inlet 42 and a material gas outlet 43; the wet sludge particle inlet 41 is connected to the downstream of the screw conveyor 3, and the hot air inlet 42 is used to feed hot air , the feed gas outlet 43 is connected to ...

Embodiment 2

[0080]A kiln-coordinated harmless treatment process for plate-shaped domestic sludge, using a kiln-coordinated harmless treatment system for plate-shaped domestic sludge as described in Example 1, specifically comprising the following steps:

[0081] (1) First use a fine crusher to crush the plate-shaped sludge until the particle size is less than 20mm to obtain sludge particles;

[0082] (2) Transport the above-mentioned pulverized sludge particles to the gas drying pulverizer, set the rotation speed of the main shaft blade to 1500r / min-3000r / min, and pass in hot air at 55-70°C for drying and further pulverization Chemical treatment to obtain a mixture gas with a particle size of 50-300 μm and a moisture content of less than 25%;

[0083] (3) Pass the mixture gas into the gas-solid separation system for gas-solid separation, and obtain waste gas and sludge dry powder respectively;

[0084] (4) The dry sludge powder is transported to the rotary kiln for incineration after pas...

Embodiment 3

[0087] A kiln-coordinated harmless treatment process for plate-shaped domestic sludge, using a kiln-coordinated harmless treatment system for plate-shaped domestic sludge as described in Example 1, specifically comprising the following steps:

[0088] (1) First use a fine crusher to crush the plate-shaped sludge until the particle size is less than 3mm to obtain sludge particles;

[0089] (2) Transport the pulverized sludge particles to a gas drying pulverizer, set the spindle speed at 3000r / min, and feed hot air at 70°C for drying and further pulverization treatment to obtain a particle size of 50 ~95μm, the mixture gas with moisture content less than 25%;

[0090] (3) Pass the mixture gas into the gas-solid separation system for gas-solid separation, and obtain waste gas and sludge dry powder respectively;

[0091] (4) The dry sludge powder is transported to the rotary kiln for incineration after passing through the storage bin, and the waste gas is directly passed into the...

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Abstract

The invention discloses plate-shaped sludge kiln cooperated harmlessness treatment system and process for domestic sludge. The system is compact in structural configuration and small in occupied area,solves the difficult problem of transportation of plate-shaped sludge kiln cooperated disposal, saves cost, and is convenient to operate.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a kiln-coordinated harmless treatment system and process for plate-shaped domestic sludge. Background technique [0002] At present, with the gradual increase of daily water consumption, the daily sewage treatment capacity of sewage treatment plants is also gradually increasing. Correspondingly, a large amount of sludge will be generated in the process of sewage treatment, and in the process of sludge treatment, usually directly Discarded in public environments such as farmland, rivers, and oceans, 70% of the sludge produced by my country's sewage treatment plants has not been properly disposed of. Random piles of sludge not only affect the appearance of the environment, but also cause environmental pollution. Therefore, effective sludge treatment devices and methods need to be provided. [0003] At present, the domestic mainstream technology of co-processing domestic or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/13C02F11/00B01D50/00
Inventor 曾德选张睿张虓左洪川郎小月刘刚娄亮刘石双黄武印张二玲董明亮张宝东李玉军李冬辉
Owner TANGSHAN CERAMIC