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Sludge drying treatment system and method

A treatment system and sludge drying technology, applied in water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, special treatment targets, etc., to optimize the overall urban environment, eliminate environmental risks, and achieve a high degree of automation. Effect

Inactive Publication Date: 2016-06-15
SUZHOU LVDI SOIL REMEDIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the inventor found in practice that to treat the sludge produced by domestic sewage plants, it is first necessary to consider whether the treatment system and treatment process will affect the surrounding environment. processing cost

Method used

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  • Sludge drying treatment system and method
  • Sludge drying treatment system and method
  • Sludge drying treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment one: if Figure 5 , Figure 6 , Figure 7 As shown, a set of sludge drying treatment system arranged in a closed factory building includes: a stirring device, a chemical feeding device, wherein, the stirring device includes: a primary mixer 6, a scraper machine 12, a secondary Stirrer 11 ; the medicament feeding device includes: at least one medicament tank 13 , a feed valve 14 is provided at the bottom of each medicament tank 13 , and at least one screw conveyor 15 , 17 . In a preferred technical solution, the above-mentioned medicament feeding device is arranged on the platform 16 . By controlling the opening and closing of the feed valve 14 at the bottom of the medicine tank 13, the dry medicine is put into the screw conveyor 15, and the dry medicine is sent to the mixer 6 by the cooperation of the primary screw conveyor 15 and the secondary screw conveyor 17. Two kinds of materials (sludge and dry chemical lime) enter into the mixer 6 for mixing at...

Embodiment 3

[0051] Embodiment 3, the sludge dehydration and drying treatment system as described in Embodiment 2, compared with Embodiment 2, Embodiment 3 is also equipped with tail gas treatment equipment to ensure that the gas in the plant will not leak out when the sludge is dehydrated and dried. Surroundings. The tail gas treatment equipment includes: gas collection pipes, fans, spray scrubbers, and low-temperature plasma gas purification devices arranged in the top space of the factory building.

[0052] After testing, the waste gas components generated during the sludge dehydration and drying process include: malodorous, ammonia, hydrogen sulfide, non-methane total hydrocarbons, water vapor, etc.

[0053] The gas collection pipes arranged in the top space of the factory building are composed of four main collection pipes. Branch pipes are designed on the main pipes, and suction ports are designed at the end of the branch pipes to achieve uniform collection of exhaust gas in th...

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Abstract

The invention belongs to the field of sludge treatment and particularly relates to a drying treatment system for treating the sludge from a domestic sewage plant. The sludge drying treatment system comprises a chemical dosing device and a stirring device, wherein the chemical dosing device comprises at least one chemical tank and at least one spiral conveyor; and the stirring device comprises a first-level stirrer, a scrapper and a second-level stirrer. According to the sludge drying treatment system provided by the invention, the automation degree is high, the links of dosing and stirring are integrally finished, and the production conditions of each link can be accurately controlled, thereby being safe and reliable; and moreover, main technological links are implemented in a closed plant, supporting tail gas treatment equipment is provided, and thus the system is friendly to the surrounding environment.

Description

[0001] The invention belongs to the field of sludge treatment, and in particular relates to a sludge drying treatment system for treating domestic sewage plants. Background technique [0002] The construction of sewage treatment plants in large and medium-sized cities in China was earlier. Since there was no mature and feasible sludge treatment technology in China at that time, the sludge generated by sewage treatment plants was temporarily piled up on the reserved land. As time goes by, the amount of sludge piled up continues to increase. During the process of containment, shoveling, and ditch filling, the debris in the sludge also increases. Construction waste, plant waste, and domestic waste are all mixed in. Disposal is difficult; at the same time, the nature of the sludge determines that it cannot be dried, and the moisture content of long-term storage is still high (the average moisture content after testing is 81.48%), showing a swampy shape, some jelly blocks, low beari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/14
CPCC02F11/12C02F11/14C02F2303/06
Inventor 李兴
Owner SUZHOU LVDI SOIL REMEDIATION TECH CO LTD
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