Oily sludge treatment skid-mounted device and method

A sludge treatment and sludge technology is applied in the field of oily sludge treatment skid-mounted devices, which can solve the problems of secondary pollution, inconvenience caused by untimely treatment of soil pollution, and small amount of soil, so as to save construction costs and save the site. Space, the effect of reducing installation time

Pending Publication Date: 2019-01-15
CHINA NAT PETROLEUM CORP SAFETY & ENVIRONMENTAL TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a skid-mounted device for oily sludge treatment in response to the requirement that the amount of oil-polluted soil produced by crude oil leakage in oil pipelines is

Method used

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  • Oily sludge treatment skid-mounted device and method
  • Oily sludge treatment skid-mounted device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the skid-mounted device for oily sludge treatment in this embodiment consists of a base 1, a sludge blender 2, a screw conveyor 3, an upper hopper 4, a primary pyrolysis reactor 5, a nitrogen gas inlet system 6, a secondary thermal Decomposition reactor 7, third-stage pyrolysis reactor 8, fourth-stage pyrolysis reactor 9, cooling and dust prevention device 10, collection pool 11, gas manifold 12, gas collection tank 13, air condenser 14, oil-water recovery tank 15 , a cyclone separator 16, an absorption chamber 17, a low-temperature plasma gas processor 18, and a chimney 19.

[0027] A sludge blender 2 is installed on the base 1, and the oily sludge falls to the screw conveyor 3 from the outlet at the bottom of the sludge blender 2. The oily sludge is transported to the upper hopper 4 through the screw conveyor 3, and the outlet of the upper hopper 4 is connected with the inlet of the first-stage pyrolysis reactor 5 with a screw propeller, an...

Embodiment 2

[0030] The skid-mounted device of Embodiment 1 is used to process the oil-contaminated soil formed by the sudden oil leakage of the oil pipeline, and the specific methods are as follows:

[0031] 1. Use an excavator to dig out the oil-contaminated soil formed by the sudden oil leakage of the oil pipeline, transport it to the sludge blender 2, and blend it with the surrounding dry soil until the oil content is 18% and the moisture content is 56%. Then, the screw conveyor 3 is used to transport it to the upper hopper 4, and the sludge falls from the upper hopper 4 to the primary pyrolysis reactor 5 with a screw propeller through gravity.

[0032] 2. The nitrogen in the nitrogen gas intake system 6 enters from the air inlet of the primary pyrolysis reactor 5 with a screw propeller, and enters the secondary pyrolysis reactor 7 with a screw propeller through the connecting channel in turn. The three-stage pyrolysis reactor 8 with a screw propeller, the four-stage pyrolysis reactor ...

Embodiment 3

[0037] The skid-mounted device of Embodiment 1 is used to process the oil-contaminated soil formed by the sudden oil leakage of the oil pipeline, and the specific methods are as follows:

[0038] 1. Use an excavator to dig out the oil-contaminated soil caused by the sudden oil leakage of the oil pipeline, transport it to the sludge blender 2, and blend it with the surrounding dry soil until the oil content is 15% and the moisture content is 60%. Then, the screw conveyor 3 is used to transport it to the upper hopper 4, and the sludge falls from the upper hopper 4 to the primary pyrolysis reactor 5 with a screw propeller through gravity.

[0039] 2. The nitrogen in the nitrogen gas intake system 6 enters from the air inlet of the primary pyrolysis reactor 5 with a screw propeller, and enters the secondary pyrolysis reactor 7 with a screw propeller through the connecting channel in turn. The three-stage pyrolysis reactor 8 with a screw propeller, the four-stage pyrolysis reactor ...

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Abstract

The invention discloses an oily sludge treatment skid-mounted device and a method, and the oily sludge treatment skid-mounted device comprises a base, a sludge blender, a screw conveyor, an upper hopper, first, second, third and fourth stage pyrolysis reactors with a screw thruster, a nitrogen gas feeding system, a cooling and anti-dusting device, a collecting pool, a gas collecting pipe, a gas collecting tank, an air condenser, an oil water recycling tank, a cyclone separator, an absorption chamber, a low temperature plasma gas processor and a smoke exhaust cylinder. The device is mobile, adopts intensive arrangement, saves on-site space, is convenient for transportation, reduces on-site workload and installation time, and saves construction cost. The device is used to treat oily sludge,the oily sludge can be recycled and harmlessly treated in a place where pollution occurs, secondary pollution caused by transportation vehicles during transportation can be avoided, and the oily sludge treatment skid-mounted device is suitable for in-situ treatment of oil contaminated soil generated by emergencies, and is also suitable for oil-based mud treatment and resource treatment of the oilysludge, floor oil sludge and oil-based mud with a small amount of offshore production.

Description

technical field [0001] The invention belongs to the technical field of emergency treatment of oily sludge, and in particular relates to a skid-mounted device for treating oily sludge and a method for treating oily sludge using the device. Background technique [0002] Oily sludge is the main solid waste of oil fields and refining and chemical enterprises. It is in a solid or semi-fluid state and belongs to a heterogeneous multi-phase dispersion system. It is one of the environmental protection problems in the petroleum and petrochemical industry. It is mainly composed of crude oil, water, clay minerals, biological organic matter and chemical additives. Generally, the oil content is about 10%, and the high one can reach more than 20% to 30%. It has the value of energy material recovery and clay mineral regeneration. The annual production of oily sludge in the petroleum and petrochemical industry is about 1 million tons, mainly in oil fields (about 70%) and refining and chemic...

Claims

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Application Information

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IPC IPC(8): C02F11/10B01D53/75B01D53/86B01D53/32B01D50/00B01D47/06B01D45/12B01D53/54B01D53/48
CPCB01D45/12B01D47/06B01D53/002B01D53/323B01D53/75B01D53/8603B01D53/8621C02F11/10C02F2303/06B01D2255/2045B01D2255/2027B01D2259/818B01D50/40Y02W10/40
Inventor 屈撑囤鱼涛邢陕青黄居州石升伟
Owner CHINA NAT PETROLEUM CORP SAFETY & ENVIRONMENTAL TECH RES INST CO LTD
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