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Treatment technology for recovering and separating oily sludge

A technology for separation and treatment of oily sludge, applied in sludge treatment, immiscible solvent sludge treatment, water/sludge/sewage treatment, etc., can solve problems such as air pollution, large investment, and a large amount of dust, and achieve separation Fast speed and good separation effect

Active Publication Date: 2015-04-29
浙江金成环保科技工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, sludge incineration does not recycle the heat of a large amount of diesel oil or waste oil, and the cost is very high, and the investment is also large.
In addition, the incineration process is often accompanied by serious air pollution, and some have a lot of dust, so the actual utilization rate of the incineration device is low

Method used

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  • Treatment technology for recovering and separating oily sludge

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Effect test

Embodiment 1

[0020] A recovery and separation treatment technology for oily sludge, the treatment technology adopts the following device, such as figure 1 As shown, the device includes an ultrasonic extractor 1 and a centrifugal separator 2, the ultrasonic extractor 1 includes a signal generator 3, an energy conversion instrument 4 and a mud hopper 5, the centrifugal separator 2 includes a main body 6, and an insulating layer is arranged inside the main body 6 19. The insulation layer 19 is located inside the inner wall of the main body 6. A heating device is provided inside the insulation layer 19. A housing 7 is provided outside the main body 6. The right end of the housing 7 is provided with a feed port 8 connected to the mud hopper 5. The feed port 8 The base is provided with a feed inlet bearing frame 9, and the left end of the housing 7 is provided with a mud discharge port bearing frame 10 and a differential gear 11 connected thereto. There is a mud discharge baffle 21; a drum 13 is...

Embodiment 2

[0023] Adopt the device of embodiment 1, the specific steps of this treatment technology are as follows: in every part of 100g, at first 50 parts of oily sludge, 50 parts of pH are 12 sodium hydroxide solution, 2.6 parts of active agent rhamnolipids are added In mud hopper 5, adopt ultrasonic extractor 1 to carry out mixed treatment under frequency 20KHz, processing time is 30min, then mixture enters centrifuge 2, and the rotating speed of spiral push rod 13 in centrifuge 2 is 4000r / min, The treatment time of the mixture in the centrifugal separator 2 is 20 minutes; and the temperature in the centrifugal separator 2 is controlled to be 50°C.

[0024] The separation recoveries of embodiment 1 and embodiment 2 are respectively 96% and 97%.

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Abstract

The invention relates to the technical field of petroleum separation, in particular to a treatment technology for recovering and separating oily sludge. The treatment technology comprises the following specific steps: firstly, adding 50 parts of oily sludge, 50 parts of a sodium hydroxide solution with the pH of 12 and 2.6 parts of an active agent to a sludge hopper, carrying out mixing treatment by virtue of an ultrasonic extracting instruction at the frequency below 20KHz for 10-30 minutes, and feeding a mixture into a centrifugal separator, wherein the rotating speed of a spiral pushout rod in the centrifugal separator is 4,000-5,000r / min; the treatment time of the mixture in the centrifugal separator is 10-20 minutes; and the temperature in the centrifugal separator is controlled to 50-60 DEG C. The technology disclosed by the invention is high in separation speed and good in separation effect, and can reach 95% of separation effect.

Description

technical field [0001] The invention relates to the technical field of oil separation, in particular to an oil sludge recovery and separation treatment technology. Background technique [0002] When oil storage tanks store oil products, especially crude oil, the storage time is generally longer, and sludge is more likely to form at the bottom of the tank. Especially for strategic reserves, the storage time is longer. At this time, inorganic impurities such as high melting point wax, asphaltene, colloid and entrained sand, soil, heavy metal salts and other inorganic impurities in crude oil and oil products will settle together with water due to the difference in density. Accumulates at the bottom of the tank, forming a black and thick layer of jelly-like substance, that is, tank bottom sludge, and its amount is generally as high as 1-2% of the storage tank capacity. Tank bottom sludge generally has high water content, high oil content and other harmful substances. [0003] ...

Claims

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Application Information

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IPC IPC(8): C02F11/00C10G1/00
CPCC02F11/00C02F11/002C02F2303/06C10G1/00C10G1/04C10G2300/1003
Inventor 周慕赵薇陈彩胜方倩茜王北福
Owner 浙江金成环保科技工程有限公司
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