CN203112672U - Oily sludge vibration washing device - Google Patents

Abstract

The utility model relates to an oily sludge vibration washing device which is simple to operate and is economic and practical and belongs to the field of oil field environment protection. The oily sludge vibration washing device comprises an oil sludge storage hopper (3), a disc feeder (4), a rotary oily sludge stirring tank (2), a spiral conveyor (5), a primary washing device (6), a secondary washing device (9), a high-frequency vibration screen (14) and a slurry buffer tank (15), wherein the oily sludge storage hopper (3) is positioned above the disc feeder (4), the disc feeder (4) is connected with the rotary oily sludge stirring tank (2), the rotary oily sludge stirring tank (2) is connected with the spiral conveyor (5), the spiral conveyor (5) is connected with the primary washing device (6), the primary washing device (6) is connected with the secondary washing device (9), and the slurry buffer tank (15) is arranged below the high-frequency vibration screen (14). The oily sludge vibration washing device is simple and practical, and is good in washing and separating effect without pollution and easy to popularize.

Description

Oily sludge vibration washing device

technical field

The utility model relates to a method and equipment for treating oily sludge, in particular to a vibration washing device for oily sludge, which belongs to the field of oil field environmental protection. the

Background technique

At present, the coordinated development of energy and the environment is a topic of common concern to mankind. The petroleum industry is developing rapidly. With the continuous increase of mining volume, a large amount of oily sludge is produced in the production process. Oily sludge is a solid waste produced in the process of oil extraction, gathering and transportation, and smelting. Generally, the oil content in sludge is 5%-50%. Our country produces an average of 1 million tons of oily sludge every year. If it is not recycled, it will cause environmental pollution and waste of resources. The principle of oily sludge treatment is usually: the principle of reduction , the principle of harmlessness, and the principle of resource utilization. The treatment methods currently used mainly include: drying landfill method, incineration treatment method, biological treatment method, solvent extraction treatment method, coking treatment method, etc. The problems of these treatment methods are: high energy consumption, high treatment cost, large secondary pollution, long treatment time, and low resource recovery rate. What the market needs is a treatment technology, method and equipment that can recover useful substances, is safe and environmentally friendly, has low equipment investment, and low operating costs. How to sort oily sludge and how to deal with oily sludge pollution in a safe, environmentally friendly and efficient manner has always been a topic of common concern to the majority of petroleum companies. the

Contents of the invention

The utility model provides a simple operation, environmental protection and pollution-free, economical and practical oily sludge vibration washing device, which separates coarse and fine material in oily sludge from oily mud, reducing the load and cost of subsequent treatment. the

The technical scheme of the utility model is: an oily sludge vibration washing device, the device includes: sludge storage hopper, disc feeder, rotary sludge mixing tank, screw conveyor, primary washing device, secondary washing device, high-frequency vibrating screen and slurry buffer tank, in which the sludge storage bucket is above the disc feeder, the disc feeder is connected to the rotary sludge mixing tank, the rotary sludge mixing tank is connected to the screw conveyor, and the screw conveyor The feeder is connected with the primary washing device, the primary washing device is connected with the secondary washing device, and the slurry buffer tank is under the high-frequency vibrating screen. the

The beneficial effects of the utility model are: the oily sludge vibrating washing device is mainly based on physical treatment and supplemented by chemical treatment. Under the joint action of mechanical mixing, chemical agents, high-pressure hot water washing, heating and high-frequency vibration, the oily sludge The coarse material and fine material in the sludge are separated from the oil sludge. The whole device is simple and practical, can be used in conjunction with different oily sludge treatment processes, has good washing and separation effects, and has no pollution, and the utility model can be fixed or skid-mounted and moved, and is easy to popularize. the

Description of drawings

Figure 1 is a schematic diagram of an oily sludge vibration washing device, and Figure 2 is a front view of a two-stage washing device. the

Reference signs: 1. Solution tank, 2. Rotary sludge mixing tank, 3. Sludge storage hopper, 4. Disc feeder, 5. Screw conveyor, 6. Primary washing device, 7.1# Heating coil , 8.1# slurry tank, 9. Secondary washing device, 10.2# heating coil, 11.2# slurry tank, 12. Secondary washing device outlet, 13. Serum buffer tank level gauge, 14. High frequency vibrating screen, 15. Slurry buffer tank, 16. Sand outlet, 17.2# drum screen, 18.2# liquid level gauge, 19. driving device, 20.1# drum screen, 21.1# liquid level gauge. the

Detailed ways

The oily sludge flows through the disc feeder (4) in the sludge storage hopper (3) and enters the rotary sludge mixing tank (2). After the medicament solution is fully mixed and stirred, it is transported to the 1# drum sieve (20) inside the primary washing device (6) by a screw conveyor (5), and the 1# drum screen (20) is concentric with the 2# drum screen (17). Connected, and constantly rotate under the drive of driving device (19). The oil sludge is washed by high-pressure hot water solution containing medicament inside the 1# trommel screen (20), and the coarse-grained materials higher than the aperture of the screen enter the secondary washing device (9) for further washing treatment, and the slurry below the aperture of the screen falls into the 1# The slurry tank (8), the 1# liquid level gauge (21) is used to observe the liquid level of the 1# slurry tank (8), and the 1# heating coil (7) is used to heat the slurry in the 1# slurry tank (8), so as to promote oil, Water and mud are separated into three phases. The coarse-grained material enters the secondary washing device (9) and is washed again by high-pressure hot water solution containing medicament, and then is discharged from the outlet (12) of the secondary washing device, and the slurry falls into the 2# slurry pool (11), and the 2# slurry pool (11 ) liquid level is observed and controlled by the external 2# liquid level gauge (18), and the 2# heating coil (10) heats the 2# slurry pool (11) to promote the three-phase separation of oil, water and mud. The internal slurry of 1# slurry tank (8) and 2# slurry tank (11) is pumped into the high-frequency vibrating screen (14) by the slurry pump, and the high-speed vibration of the fine-grained materials in the sludge on the screen surface accelerates the separation of the sludge , the fine-grained material is discharged through the sand discharge port (16), and the slurry enters the bottom slurry buffer tank (15) through the screen, and the liquid level of the slurry buffer tank (15) is displayed and controlled by the slurry buffer tank level gauge (13). the

The implementation process of this device includes the following steps:

A. Mixing and stirring: It is composed of a sludge storage hopper, a disc feeder, a rotary sludge mixing tank, and a screw conveyor. the

B. Washing and sorting: it consists of two-stage washing devices. the

C. Vibration separation: It is composed of a high-frequency vibrating screen and a slurry buffer tank. the

The mixing and stirring means that the oily sludge flows through the sludge storage hopper through the disc feeder and enters the rotary sludge mixing tank for mixing and stirring with the chemical solution. The washing and sorting is composed of a two-stage washing device. Inside the washing device, there is an inclined mesh drum screen, and the drum screens are connected concentrically. The sludge is washed inside the trommel screen by high-pressure hot water solution containing chemicals, the driving device drives the trommel screen to rotate continuously, the sludge is pushed forward, the coarse material is discharged from the outlet of the secondary washing device, and the slurry enters the slurry pool at the bottom of the trommel screen. The steam heating coil is built in the slurry tank, and the sorted mud is heated to promote the separation of oil and mud, and the liquid level of the slurry tank is observed through an external liquid level gauge. The vibration separation is composed of a high-frequency vibrating screen and a slurry buffer tank. The high-frequency vibrating screen uses high-frequency vibration to destroy the tension on the surface of the sludge, and the high-speed vibration of the fine-grained materials on the screen surface accelerates the separation of the sludge. Function, the fine-grained material is discharged through the fine material sand discharge port, and the slurry enters the bottom slurry buffer tank through the screen. the

Claims (1)

1. A vibration washing device for oily sludge, which comprises a sludge storage hopper (3), a disc feeder (4), a rotary sludge mixing tank (2), a screw feeder (5), and a primary washing device (6), secondary washing device (9), high-frequency vibrating screen (14) and slurry buffer tank (15), it is characterized in that: oil sludge storage bucket (3) is above the disc feeder (4), round The pan feeder (4) is connected to the rotary sludge mixing tank (2), the rotary sludge mixing tank (2) is connected to the screw conveyor (5), and the screw conveyor (5) is connected to the primary washing device (6 ), the primary washing device (6) is connected with the secondary washing device (9), and the slurry buffer tank (15) is below the high-frequency vibrating screen (14). the

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