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Spent bleaching clay non-pollution treatment process and equipment

A treatment process and treatment equipment technology, applied in the field of pollution-free treatment, can solve the problems of high equipment investment cost, complex process, secondary pollution, etc., and achieve the effect of high recovery rate, simple process and low investment cost

Active Publication Date: 2017-09-22
江苏恒茂再生能源有限公司
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Problems solved by technology

However, the above treatment methods will have certain disadvantages such as complicated process, secondary pollution, high equipment investment cost and large energy consumption.

Method used

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  • Spent bleaching clay non-pollution treatment process and equipment

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Embodiment Construction

[0020] The present invention is described in detail in conjunction with accompanying drawing and specific embodiment:

[0021] The pollution-free treatment process of waste clay described in this embodiment includes low-temperature thermal distillation and high-temperature calcination, and the specific implementation steps are as follows:

[0022] 1) The low-temperature thermal distillation method is to heat to 250°C-400°C by adding an inert atmosphere or a vacuum atmosphere in a low-temperature rotary heating furnace, and after 1-2 hours of heat preservation, water vapor and some organic matter are generated, which are condensed , Oil-water separation to obtain oil, waste water, waste gas.

[0023] Heating to 400°C in a low-temperature rotary heating furnace in an inert atmosphere or a vacuum atmosphere, and holding the temperature for 2 hours, the oil removal rate can reach 39%, of which the non-condensable gas (CH 4 , NH 3 , N 2 h 4 、C 3 h 8 and C 4 h 10 etc.) accou...

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Abstract

The invention discloses a spent bleaching clay non-pollution treatment process and equipment. The spent bleaching clay non-pollution treatment process comprises the following steps: drying and dehydrating spent blenching clay by adopting a low-temperature thermal-distilling method; treating and recycling moisture and volatile matters generated in a dehydrating process; separating an oil product from the dehydrated spent leaching clay by a high-temperature calcining method; treating and recycling the generated oil product to obtain non-pollution spent bleaching clay. The spent bleaching clay non-pollution treatment equipment comprises a low-temperature rotary heating furnace and a high-temperature rotary heating furnace, wherein a discharging end of the low-temperature rotary heating furnace communicates with a low-temperature sealing cabin through a low-temperature discharging spiral conveyer; the low-temperature sealing cabin is divided into an upper part and a lower part; an inlet end of the high-temperature rotary heating furnace is connected with a high-temperature sealing cabin; an outlet end of the high-temperature rotary heating furnace communicates with a cooling machine through a high-temperature discharging spiral conveyer. The treatment equipment has the advantages of high oil recycling rate, high automation degree, easiness in operation, low investment cost and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of waste white clay treatment produced in the refining process of lubricating oil and paraffin in the chemical industry, and mainly relates to a pollution-free treatment process and equipment for waste white clay, which is suitable for waste white clay produced in the refining process of lubricating oil and paraffin. Pollution-free treatment of white clay. Background technique [0002] In the refining process of lubricating oil and paraffin, activated clay is usually used to absorb the impurities in order to achieve the purpose of refining. After refining, the clay adsorbed with impurities also adsorbs a large amount of lubricating oil and paraffin, thus becoming a kind containing Lubricating oil or paraffin-containing waste white clay; the produced waste white clay will not only pollute the environment but also cause fire hazards, and cause a waste of petroleum resources. [0003] At present, there are man...

Claims

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Application Information

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IPC IPC(8): C11B13/04
CPCC11B13/04Y02W30/74
Inventor 田永林田世豪
Owner 江苏恒茂再生能源有限公司
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