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System and method for preparing adsorption material by using sludge

A technology for adsorbing materials and sludge, applied in chemical instruments and methods, sludge treatment, pyrolysis treatment of sludge, etc., to achieve the effects of energy saving, environmental protection, high added value, resource utilization, and solving dehydration difficulties

Pending Publication Date: 2019-04-19
北京云水浩瑞环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technology of using sludge to prepare high-quality adsorption materials needs to be studied

Method used

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  • System and method for preparing adsorption material by using sludge
  • System and method for preparing adsorption material by using sludge
  • System and method for preparing adsorption material by using sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0083] Put municipal sludge with a water content of 85wt% in a hydrothermal reaction device, and treat it for 120 minutes under high-temperature water vapor at 160 degrees Celsius and 1.5 MPa. After the treatment, the sludge is pumped into the buffer tank, and after conditioning, it is poured into the plate frame Filter press, filter under 1.5MPa pressure for 5 hours to obtain sludge with a water content of 40wt%, and then enter the sludge pyrolysis device after being crushed to ≤5mm; the filtrate obtained by press filtration contains a large amount of K, N, P, After collection, it can be diluted and used as organic compound fertilizer; after crushing, the sludge is pyrolyzed in a pyrolysis furnace at 500 degrees Celsius for 90 minutes (hot air temperature is 850 degrees Celsius) to obtain pyrolysis gas oil, pyrolysis carbon and hot air after heat exchange (350- 450 degrees Celsius), the pyrolysis oil gas is directly reused as fuel in the burner to generate high-temperature flu...

Embodiment 2

[0085] Put municipal sludge with a water content of 90wt% in a hydrothermal reaction device, and treat it for 30 minutes under high-temperature water vapor at 200 degrees Celsius and 2.5 MPa. After the treatment, the sludge is pumped into the buffer tank, and after conditioning, it is poured into the plate frame Filter press, filter under 2MPa pressure for 4 hours to obtain sludge with a water content of 35wt%, and then enter the sludge pyrolysis device after being crushed to ≤5mm; the filtrate obtained by press filtration contains a large amount of K, N, P, collected After that, it can be diluted and used as organic compound fertilizer; after crushing, the sludge is pyrolyzed in the pyrolysis furnace at 650 degrees Celsius for 45 minutes (hot air temperature is 950 degrees Celsius), to obtain pyrolysis gas oil, pyrolysis carbon and hot air after heat exchange (400-450 degrees Celsius) Celsius), the pyrolysis oil gas is directly reused as fuel in the burner to generate high-tem...

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Abstract

The invention discloses a system and method for preparing an adsorption material by using sludge. The system comprises: a hydrothermal reaction device, which is provided with a sludge inlet, a high temperature steam inlet, a hot water sludge outlet, and a water-heated water vapor outlet; a filter pressing device, which is provided with a hydrothermal sludge inlet, a filtrate outlet and a filter pressing sludge outlet, wherein the hydrothermal sludge inlet is connected with the hydrothermal sludge outlet; a pyrolysis device, which is provided with a filter pressing sludge inlet, a hot air inlet, a pyrolysis carbon outlet, a pyrolysis oil gas outlet and a hot air outlet after heat exchange, wherein the filter pressing sludge inlet is connected with the filter pressing sludge outlet; a pyrolysis carbon activation device, which is provided with a pyrolysis carbon inlet, an activator inlet, an activated gas outlet and an adsorption material outlet, wherein the pyrolysis carbon inlet is connected with the pyrolysis carbon outlet. By adopting the system, the resource utilization of the sludge can be achieved, and the high-quality adsorption material can be prepared.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a system and method for preparing adsorption materials from sludge. Background technique [0002] With the development of my country's social economy and the gradual enhancement of environmental protection awareness, more and more attention has been paid to activated carbon adsorption technology, such as: activated carbon formaldehyde removal technology, activated carbon adsorption dioxin technology, activated carbon adsorption heavy metal technology, etc. However, due to the limitations of the production process and the material itself, traditional activated carbon materials usually have limited adsorption capacity, while high-quality activated carbon generally requires a large amount of activator, which is costly and easily causes equipment corrosion and secondary pollution during the production process. . Therefore, it is of great significance to develop high-perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F11/10C02F11/122
CPCB01J20/20C02F11/10C02F11/122B01J20/3078Y02W10/40
Inventor 刘维娜兰玉顺雷小雪李东亮代锁柱陈海洋王超
Owner 北京云水浩瑞环境科技有限公司
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