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Oil mud two-stage thermal desorption system with high water content and integrated skid-mounted equipment

A high moisture content, thermal desorption technology, applied in water/sludge/sewage treatment, sludge treatment, lighting and heating equipment, etc., can solve the problem of long heating time, environmental impact of biological method, large power consumption, etc. problems, to achieve the effects of increasing partitions and high-temperature flue gas disturbance, improving energy utilization efficiency, and increasing water evaporation area

Active Publication Date: 2019-02-19
广安铭鸿环保科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic and foreign oil sludge harmless treatment methods generally include incineration method, biological method, thermal washing method, solvent extraction method, chemical demulsification method, solid-liquid separation method, solidification method, thermal desorption method, thermal cracking method, resource utilization ( Profile control, cement kiln coordination, composting), etc., due to the influence of different sources of oil sludge, differences in the physical and chemical properties of crude oil, and lithology differences in oil sludge, the current processing capacity of resource utilization is small, less than 10% in China, and the rest can make the residue after oil sludge treatment contain oil The main processes with a stable rate of less than 2% are incineration, biological, thermal desorption, pyrolysis, etc., and both incineration and thermal cracking may cause difficulties in tail gas disposal. The biological method is affected by the climate and environment, and it is difficult to comprehensively Promotion, thermal desorption is a modified high-temperature physical treatment method, one of the processes widely used abroad, and widely adopted by western developed countries. According to statistics, by 2006, developed countries such as Europe and the United States have succeeded in more than 300 projects Using this technology, domestic related research began in 2013, and it has become one of the most suitable technologies for oil sludge treatment
[0015] From the above analysis, it can be seen that the single-stage thermal desorption device mainly has problems such as low heat energy utilization rate and small disposal capacity, while the two-stage and above desorption device improves the heat energy utilization of flue gas, but still has the long heating time that restricts the efficiency of the equipment. Disposal capacity, microwave has the characteristics of high efficiency and short time, but if it is used to treat sludge with high water content, it consumes a lot of power and energy consumption

Method used

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  • Oil mud two-stage thermal desorption system with high water content and integrated skid-mounted equipment
  • Oil mud two-stage thermal desorption system with high water content and integrated skid-mounted equipment
  • Oil mud two-stage thermal desorption system with high water content and integrated skid-mounted equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] When used as a system alone (not limited to skid-mounted systems):

[0063] Including feed system 1, first-stage thermal desorption system 4, second-stage thermal desorption system 24, discharge system, steam condensation and oil-water separation system 11, nitrogen protection system:

[0064] The feeding system 1 is sequentially composed of a screw pump, a drum screening machine, a feeding hopper, a belt scale, and a scraper conveyor.

[0065] The first-stage thermal desorption system 4 is composed of a feed inlet 5, a microwave generation system 6, a transmission belt 3, a first steam recovery pipeline, and a second steam recovery pipeline (the first steam recovery pipeline and the second steam recovery pipeline jointly form the first Stage thermal desorption gas recovery pipeline 7) and microwave protection cover 2; The upper part, the upper end of the feeding port 5 is sealed and connected with the upper part of the microwave protection cover 2, one end of the tran...

Embodiment 2

[0079] When a two-stage thermal desorption system for oil sludge with high water content is integrated into the skid-mounted system and used as a skid-mounted integrated two-stage thermal desorption system for oil sludge with high water content, it mainly includes feed skid 1, thermal desorption Skid, discharge skid, steam condensation and oil-water separation skid 11, nitrogen protection skid, of which the thermal desorption skid is divided into upper skid and lower skid, the upper skid is the first-level thermal desorption skid 4, and the lower skid is the second-level thermal desorption skid. Detachment skid 24; It is characterized in that:

[0080] The feeding skid is composed of screw pump, drum screening machine, feeding hopper, belt scale and scraper conveyor in sequence.

[0081] The upper skid is composed of feed inlet 5, microwave generation system 6, transmission belt 3, first steam recovery pipeline, second steam recovery pipeline, and microwave protection cover 2;...

Embodiment 3

[0098] The use process of the present invention is as follows (taking the integrated skid as an example):

[0099] When the present invention is set, when the station is fixed, according to the feed system 1, the first-stage thermal desorption system 4, the second-stage thermal desorption system 24, the discharge system, the steam condensation and oil-water separation system 11, and the nitrogen protection system For installation and connection; during temporary construction, according to feeding skid 1, thermal desorption skid, discharge skid, steam condensation and oil-water separation skid 11, nitrogen protection skid, among which thermal desorption skid is divided into upper skid and lower skid, and upper skid The first-stage thermal desorption skid 4 and the lower skid are the second-stage thermal desorption skid 24 for installation and connection.

[0100] Take the implementation process of the two-stage thermal desorption skid-mounted device for sludge with high moistur...

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Abstract

The invention discloses an oil mud two-stage thermal desorption system with a high water content and integrated skid-mounted equipment, and belongs to the technical field of oil mud treatment devices.The system includes a feeding system, a first-stage thermal desorption system, a second-stage thermal desorption system, a discharge system, a steam condensation and oil-water separation system and anitrogen protection system, which are integrated in the integrated skid-mounted equipment. The system aims at deficiencies of high energy consumption and limited treatment capacity in the oil mud thermal desorption method treatment process, reduces the water content of the oil mud through microwave thermal desorption pretreatment of first-stage thermal radiation, uses the indirect thermal desorption of second-stage heat conduction to separate oil from the soil, and improves the thermal efficiency and the processing capacity of the equipment by a first-stage thermal desorption distributor, a second-stage thermal desorption flame retardant plate and a fire blocking wall to increase the flue gas residence time. The system solves the problem that a microwave belt discharge belt adheres to theoil sludge, a steam releases on the discharge port and the sealing and the safety concern people, the structure is reasonable and compact, and the system is convenient to relocate and install, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an oil sludge disposal device technology, in particular to a two-stage thermal desorption system for oil sludge with high water content and its integrated skid. Background technique [0002] Petroleum is an important energy source and the foundation of the national economy. Petroleum is mainly a complex compound composed of hydrocarbon compounds. Its composition is complex and contains teratogenic, carcinogenic and mutagenic substances (such as halogenated hydrocarbons, benzene series, anilines, phenanthrene, benzopyrene, etc.). As an important environmental basis for the survival of humans, animals, plants and microorganisms, soil is an important place where natural substances and energy participate in the cycle processes of transformation, migration and accumulation. Due to the characteristics of high fluidity, strong permeability, and significant adhesion to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/131C02F11/127B01D53/26F23G7/06
Inventor 刘宇程王茂仁陈明燕廖茂芪陈坷铭刘捷
Owner 广安铭鸿环保科技有限责任公司
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