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Dewatered sludge aerobic fermentation device and technique

A dewatered sludge and aerobic fermentation technology, applied in sludge treatment, biological sludge treatment, etc., can solve the problem that personnel are greatly affected by site gas, operations are greatly affected by weather factors, and the bottom of the stack is easy to compact, etc. Problems, to achieve the effect of improving oxygen supply efficiency, reducing heat loss, and reducing blast volume

Active Publication Date: 2014-12-24
THUNIP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of decomposed products to cover cannot effectively avoid the impact of rain and snow on the fermentation tank. It is also necessary to cover the workshop to increase investment; the dewatered sludge and recycled materials are mixed at a ratio of 1:1, and the moisture content of the mixed sludge is relatively high. , the stacking height should not exceed 2m, otherwise the bottom of the stack is easy to be compacted, which will affect the aeration effect; the fermentation time is slightly longer, which is not conducive to saving land occupation
In addition, although the invention adopts a distributing machine, which can realize partial automation, but the process of remixing, transporting materials, and secondary fermentation still needs to be completed by manually driving the loader, which will cause the working environment to be messy and the personnel will be affected by the gas in the site. Larger, the operation is greatly affected by weather factors, etc., so it is difficult to increase the amount of anti-mixing, and the amount of anti-mixing can be 1:1 at most

Method used

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  • Dewatered sludge aerobic fermentation device and technique
  • Dewatered sludge aerobic fermentation device and technique
  • Dewatered sludge aerobic fermentation device and technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 A dewatered sludge aerobic fermentation device

[0050] Such as Figure 1-3 As shown, a dewatered sludge aerobic fermentation device includes a mixing crusher 1 and a fermentation unit 4; wherein, the fermentation unit is composed of two rows of fermentation tanks, and two conveyor belts are arranged between the two rows of fermentation tanks 2, 9 and the automatic distributing machine 3 and automatic reclaimer 8 arranged thereon; wherein, each row of fermenter group can be divided into primary fermenter group and secondary fermenter group 10; wherein, the fermenter Lay the sheet 6 on the surface of the sheet, and compact it with a ballast at the peripheral seam of the sheet.

[0051] Wherein, the number of the fermentation tanks is 16, and there are 14 primary fermentation tanks, and the rest are secondary fermentation tanks. The bottom of each fermenter is provided with 3 ventilation pipe grooves, and perforated ventilation pipe 7 is established in it, and...

Embodiment 2

[0060] Example 2 A dewatered sludge aerobic fermentation device

[0061] The same as the fermentation device described in Example 1, the difference is that the number of the fermentation tanks is 14, and there are 10 primary fermentation tanks, and the rest are secondary fermentation tanks. The bottom of each fermenter is provided with 2 ventilation pipe grooves, and perforated ventilation pipe is arranged in it, and the width and depth of the ventilation pipe grooves are 19cm, and the diameter of the ventilation pipe is 9cm. The spacing of the ventilation pipes and the spacing of the holes on the pipes are both 0.8m.

Embodiment 3

[0062] Example 3 A dewatered sludge aerobic fermentation device

[0063] The same as the fermentation device described in Example 1, the difference is that the number of the fermentation tanks is 10, and there are 8 primary fermentation tanks, and the rest are secondary fermentation tanks. The bottom of each fermenter is provided with 4 vent pipe grooves, and perforated vent pipe is arranged in it, and the width and depth of the vent pipe grooves are 21cm, and the diameter of the vent pipe is 11cm. The spacing of the ventilation pipes and the spacing of the holes on the pipes are both 1.2m.

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Abstract

The invention relates to a dewatered sludge aerobic fermentation device and technique. The device comprises a mixing crusher and a fermentation unit, wherein the fermentation unit is composed of two rows of fermentation tank sets; and two conveyer belts, and an automatic distributor and an automatic reclaimer which are arranged on the conveyer belts, are arranged between the fermentation tanks. The dewatered sludge aerobic fermentation device and technique effectively prevent the odor from dispersion in the fermentation process, improve the ground work environment of the site, and increase the fermentation rate of the materials.

Description

technical field [0001] The invention relates to a dewatered sludge aerobic fermentation device and process, and belongs to the technical field of dewatered sludge aerobic fermentation treatment. Background technique [0002] With the rapid development of the sewage treatment industry, sludge disposal has increasingly become an important issue in the construction of municipal facilities. At present, there are many advanced sludge treatment processes on the market, such as anaerobic fermentation, plate and frame filter press, pyrolysis, etc., but usually need to add various auxiliary materials, such as lime, heating fuel, etc., so that the pollution cannot be fully realized. The reduction and recycling of mud is also complicated in management. The aerobic fermentation process only needs to add some waste such as crop stalks or wood processing waste during the drying process, and does not need to add industrial and agricultural finished products, nor does it need to be heated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02
CPCY02W10/20
Inventor 王旭李星文周丽颖刘俊红袁琳葛志强
Owner THUNIP CORP LTD
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