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Commercial treatment method and system for biological sludge

A technology of biological sludge and treatment method, which is applied in the directions of sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., which can solve the problem of low thermal energy utilization rate and treatment efficiency, and inapplicable biological sludge Sludge drying treatment, restricting the promotion of sludge incineration technology, etc., to achieve the effect of low treatment cost, saving sludge treatment costs, and saving engineering investment costs

Active Publication Date: 2018-10-12
四川泰翱农业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sludge drying treatment generally adopts indirect heating drying, the heat energy utilization rate and treatment efficiency are low, and the moisture content of the treated sludge is high, which brings difficulties to the subsequent incineration treatment; now large and medium-sized cities across the country are controlling air Pollution seriously restricts the promotion of sludge incineration technology
[0005] The rotary dryer has been widely used in cement, coal washing and other industries for decades. The heat energy utilization rate and drying efficiency of the drying materials are extremely high. The drying cost and the moisture content of the dried materials are extremely low. The technology is mature and the investment and low operating costs, the disadvantage is that it is not suitable for the drying treatment of biological sludge

Method used

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  • Commercial treatment method and system for biological sludge
  • Commercial treatment method and system for biological sludge
  • Commercial treatment method and system for biological sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0037] see figure 1 , the biological sludge commercialization treatment method of the present invention, its processing process that biological sludge adopts is as follows:

[0038] Firstly, the biological sludge is dried to obtain dried sludge with a moisture content of 7-10%;

[0039] Thirdly, carbonize the dried sludge with a water content of 7-10%. The carbonization process is completely in an anaerobic state. The dried sludge undergoes high-temperature pyrolysis and carbonization to generate biochar, methane gas, wood vinegar and biological tar;

[0040] Third, the methane gas generated during the carbonization treatment of dried sludge is recycled for carbonization treatment of dried sludge, and the remaining methane gas is used for biological sludge drying treatment;

[0041] Fourth, the biochar generated during the carbonization process of dried sludge is cooled and then put into woven bags or pumped into storage tanks for sale;

[0042] Fifth, the wood vinegar prod...

Embodiment 2

[0046] see figure 1 , the biological sludge commercialization treatment method of this embodiment differs from that of Example 1 in that: further, in the process of drying sludge carbonization, a rotary sludge carbonization machine is used, and by controlling the carbonization machine feed Speed, carbonization machine speed and methane gas burner intake, control carbonization temperature and carbonization efficiency. The high-temperature gas generated by peatization is cooled by the cooling tower, and methane gas, wood vinegar and bio-tar are separated.

[0047] A sludge carbonization machine is used to carbonize the dried sludge with a moisture content of 7-10%. The dried sludge is pyrolyzed at high temperature to generate biochar, methane gas, wood vinegar and bio-oil; the methane gas produced is used for heating in the sludge carbonization machine Carbonization and drying of sludge, carbonization, gas production, and heating cycle continuously, realizing the recycling of r...

Embodiment 3

[0049] see figure 1 , the commercial treatment method of biological sludge in this embodiment differs from that of Example 1 or Example 2 in that: during the drying process of biological sludge, biological sludge with a moisture content of 78 to 82% is added to biological The sludge weight is 1.3-1.8 times the reflux drying sludge with a moisture content of 7-10%, fully stirred to obtain a mixed sludge with a moisture content of 35-40%, and then sent to a rotary sludge dryer for drying Treatment to obtain dried sludge with a moisture content of 7-10%.

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Abstract

The invention relates to resourceful treatment on biological sludge.A commercial treatment method for biological sludge includes the steps that the biological sludge is dried, the dried sludge with the water content being 7-10% is carbonized and generates biochar, pyroligneous liquor and biological tar through high-temperature pyrolysis, and biochar, pyroligneous liquor and biological tar are packaged for sale; methane gas generated in the treatment process is recovered and used for carbonization treatment on the dried sludge.According to a rotary sludge carbonizing machine, a handpiece component and a tail component are fixed to the two ends of a rack, the two ends of a rotary cylinder are inserted into the handpiece component and the tail component and matched with the handpiece component and the tail component in a sealed mode, and a supporting and driving mechanism matched with the rotary cylinder is arranged on the rack; a guiding plate is arranged on the front portion of the rotary cylinder, a lifting plate is arranged on the inner wall of the rotary cylinder, and a combustor is arranged in a heat preservation outer cover below the rotary cylinder.A commercial treatment system for the biological sludge comprises biological sludge drying treatment complete equipment and dried sludge carbonizing treatment complete equipment.The harmful biological sludge is turned into wealth, and the commercial treatment method and system for the biological sludge have high socioeconomic performance and can create huge wealth for enterprises and the society.

Description

technical field [0001] The invention relates to a biological sludge treatment method and system, in particular to a biological sludge commercial treatment method and system and a biological sludge processing equipment rotary sludge carbonization machine. Background technique [0002] As of the end of September 2015, a total of 3,830 sewage treatment plants have been built in cities and counties across the country, with a sewage treatment capacity of 162 million cubic meters per day, and more than 40 million tons of sludge with a water content of 80% are produced every year. 80% of the sludge produced by my country's sewage treatment plants has not been properly treated, and the pollution caused by the random stacking of sludge has attracted the attention of the society. The "Water Ten Measures" issued by the State Council clearly stipulates: "The existing sludge treatment and disposal facilities should basically complete the standard transformation by the end of 2017, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/10C02F11/12C10B53/00C10B57/10
CPCC02F11/00C02F11/10C02F11/12C10B53/00C10B57/10Y02E50/30Y02W10/40
Inventor 柳建国柳思佳
Owner 四川泰翱农业科技有限公司
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