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Oily sludge cleaning method

A technology of oil sludge and cleaning agent, which is applied in chemical instruments and methods, sludge treatment, water/sludge/sewage treatment, etc., and can solve the problems of low degree of automation, high work intensity of operators, and low efficiency

Inactive Publication Date: 2018-11-06
SHENZHEN CLEAR SCI & TECH
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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 overcome the above-mentioned deficiencies of the prior art, and provide a sludge cleaning method, aiming at solving the problem of low automation degree of the existing sludge cleaning process and high work intensity of operators, so that the technology of high energy consumption and low efficiency of sludge cleaning question

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0045] A micro-nano bubble oil sludge cleaning integrated device, its structure is as follows figure 1 As shown: it includes a cyclone cleaning separation tank 11, a dissolved air pump 12, a stabilization tank 13, a micro-nano bubble release device 14, a cleaning agent adding device 16 and a mixing device 15; the top of the cyclone cleaning separation tank 11 is provided with a floating oil pipe 111, the bottom end of the cyclone cleaning and separation tank 11 is provided with a sand discharge pipe 112, and the side wall of the cyclone cleaning and separation tank 11 is provided with an oil inlet pipe 113, a mud discharge pipe 114 and a drain pipe 115. The dissolved air pump 12 is communicated with the drain pipe 115, and the dissolved air pump 12, the stabilization tank 13 and the micro-nano bubble release device 14 are connected in sequence; the mixing device 15 is arranged on the oil inlet pipe 113 Above; the micronanobubble release device 14 and the cleaning agent adding ...

Embodiment 2

[0048] A sludge cleaning system for non-open air, its structure is as follows figure 2 Shown: including sludge pump 2, filter 3, homogenizing tank 4, screw pump 5, micro-nano bubble sludge cleaning integrated device 1 of the above-mentioned embodiment 1, oil-water separator 101, two-phase centrifuge 103 and sewage advanced treatment device 100; the sludge pump 2, the filter 3, the homogenizing tank 4 and the screw pump 5 are connected in sequence, the screw pump 5 is connected to the sludge inlet pipe 113, and the oil-water separator 101 communicates with the floating oil discharge pipe 111 , the two-phase centrifuge 103 communicates with the mud discharge pipe 114 , and the sewage advanced treatment device 100 communicates with the drain pipe 115 . The oil-water separator 101 is also connected with the dirty oil collection tank 102, the two-phase centrifuge 103 is also connected with the harmless treatment device 104, and the homogenization tank 4 is also equipped with a hea...

Embodiment 3

[0050] A sludge cleaning system for open air, its structure is as follows image 3 Shown: includes a crusher 7, a tempering tank 8, a vibrating screen 9, a homogenizing tank 4, a screw pump 5, the micro-nano bubble sludge cleaning integrated device 1 of the above-mentioned embodiment 1, an oil-water separator 101, and a two-phase centrifuge 103 and sewage advanced treatment device 100; the crusher 7, the tempering tank 8, the vibrating screen 9, the homogenizing tank 4 and the screw pump 5 are connected in sequence, and the screw pump 5 is also connected with the screw pump The oil sludge inlet pipe 113 is connected, the oil-water separator 101 is connected with the oil floating pipe 111, the two-phase centrifuge 103 is connected with the mud discharge pipe 114, and the advanced sewage treatment device 100 is connected with the The drain pipe 115 is connected; the oil-water separator 101 is also connected with the dirty oil collection tank 102, the two-phase centrifuge 103 is ...

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Abstract

The invention belongs to the technical field of petrochemical industry, and particularly relates to an oily sludge cleaning method. The oily sludge cleaning method comprises the following steps: collecting oily sludge, carrying out crush treatment on the oily sludge, and then filtering by using a vibrating screen; adding water and a first cleaning agent into the filtered oily sludge for diluting to obtain mixed oily sludge; sending the mixed oily sludge into a micro-nano bubble oily sludge cleaning integrated device for cleaning. In the oily sludge cleaning method, micro-nano bubbles in a cyclone cleaning tank can quickly and efficiently clean the oily sludge in the presence of a small amount of cleaning agent, so that the cleaning cost is reduced; by the oily sludge cleaning method provided by the invention, the cleaning residence time is only 5-30min, the dosage of the cleaning agent is 1 / 10-1 / 3 of that in the conventional method, and the comprehensive energy consumption is 1 / 5-1 / 2 of that in the conventional method; the oily sludge cleaning method is especially suitable for cleaning treatment of open-air oily sludge.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a method for cleaning oil sludge. Background technique [0002] In the oilfield production fluid, a small amount of crude oil sediment or particles brought out from the bottom layer passes through the settlement of the oil tank and gradually deposits on the bottom of the tank. After a period of time of settlement, the oil tank must be cleaned of oily sludge; There will also be oily sludge deposits in the oil tank area, which also need to be cleaned regularly; the sludge cleaned from the bottom of the tank needs to be reduced or harmlessly treated. At the same time, a large amount of oily sludge is also produced in various operations in the oil field (such as drilling, workover, well washing, etc.), and this kind of sludge is generally collected in the sludge pool first, and needs to be concentrated after accumulating to a certain amount deal with. Fur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F103/10
CPCC02F11/00C02F2103/10
Inventor 曾海平简小文黄健刘冬冬
Owner SHENZHEN CLEAR SCI & TECH
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