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A ground oil sludge dry granulation equipment

A technology of landing oil sludge and dry granulation, which is applied in the direction of sludge treatment, chemical instruments and methods, raw material extrusion granulation, etc. It can solve the problems of increased water content, increased energy cost, and large consumption, and achieves the goal of reducing the expected cost. Dealing with energy consumption, reducing the amount of production, and high feasibility

Active Publication Date: 2020-07-14
XIAN AEROSPACE SOURCE POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Landed oil sludge has the following properties: (1) High viscosity and poor fluidity Due to the high viscosity of the mixture of solid materials such as bricks, tiles, sand, stones and landed crude oil, it is extremely difficult to collect and transport it
(2) The longer the storage time, the higher the viscosity, and the more difficult the separation of oil and soil
(1) Chemical hot water washing requires a large amount of hot water and hot steam, and high energy consumption; (2) After treatment, the oil content of solid phase sludge is still higher than 2%, which needs further treatment, but the water content is significantly increased, resulting in The cost of energy consumption for incineration and pyrolysis treatment is significantly increased; (3) A large amount of oily wastewater that needs to be treated is produced
[0004] At present, there is no simple and effective method for pre-treatment of landed oil sludge, and there is no relevant report on the formation of oil sludge particles from dry treatment of landed oil sludge

Method used

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  • A ground oil sludge dry granulation equipment
  • A ground oil sludge dry granulation equipment

Examples

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Embodiment 1

[0030] According to the above technical scheme, this example provides a dry granulation process of the ground oil sludge, including sorting, crushing, granulation and modification. The role is to initially tear up the packaging bag that wraps the sludge. In the crushing stage, the large sludge is divided into smaller pieces, with an average size of 30cm. Part of the sludge is granulated into small particles. In the modification stage, the smaller sludge is divided into smaller pieces. Uniform sludge particles smaller than 1cm are thrown out obliquely, and the composite modifier is wrapped and modified during the throwing out process.

Embodiment 2

[0032] Comply with the above technical solutions, such as figure 1 , 2 As shown, this embodiment provides a dry granulation equipment for ground sludge, including a shell 1, the upper part of the shell 1 is respectively provided with a ground sludge inlet channel 2 and a composite modifier inlet channel 3, and the floor sludge inlet channel 2 A sorting shaft 4 is provided, and a plurality of sorting knives 5 are arranged on the sorting shaft 4, and a sorting bin 16 is arranged outside the housing near the side of the crushing shaft 6, and the housing 1 on the side of the sorting shaft 4 is connected to the sorting knives. The distance of the selection shaft 4 can be changed elastically (connected to the spring device). Foreign objects such as bricks and rubble are removed during the sorting stage. Moving, bricks, rubble, etc. can enter the sorting bin 16 for removal, and the crushing shaft 6 that rotates in opposite directions is arranged in the landing oil sludge inlet chann...

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Abstract

The invention provides a dry pelletizing technology of falling oily sludge. Oily sludge particles are formed after separation, crushing, pelletizing and package modification of the falling oily sludge. The pelletizing and the package modification comprise the steps of throwing out to-be-modified oily sludge particles formed after the pelletizing of the falling oily sludge at an acute included angle with a horizontal plane, and performing the package modification on the to-be-modified oily sludge particles in a dropping and rolling process by using a compound modifier to form the oily sludge particles. The invention provides the dry treatment technology and equipment of the falling oily sludge for the first time; compared with the existing thermochemical water washing method, the technology has the significant advantages that much hot water and hot steam are not required to be used; sundry separation and crushing of the falling oily sludge in an original state is achieved by a dry method; designed pelletizing knives process the falling oily sludge into the oily sludge particles with uniform sizes; and the treatment energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of oil sludge treatment in well fields, and relates to dry oil sludge treatment, in particular to a dry granulation modification process of ground oil sludge and corresponding equipment. Background technique [0002] Oily sludge is a kind of hazardous waste (HW08) composed of minerals, mineral oil and water. The amount of oily sludge is 0.15%-1% of crude oil production. At present, my country's annual oily sludge has exceeded one million tons. Among them, the landed oil sludge is a solid mixture formed by mixing a large amount of crude oil on the ground with soil, sand, plastics, and other sundries during drilling and test spraying in the oil extraction process. The oil content of landed sludge is generally between 10% and 30%, and the specific gravity is about 1.5-1.8t / m3. Landed oil sludge has the following properties: (1) High viscosity and poor fluidity. Due to the high viscosity of the mixture of solid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00B01J2/00B01J2/20B01J2/14B02C18/14
CPCB01J2/00B01J2/14B01J2/20B02C18/142C02F11/00
Inventor 鲁涛朱宝飞石春梅刘丹池保华仲伟聪
Owner XIAN AEROSPACE SOURCE POWER ENG CO LTD
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