CN112939388A - Solid article sorting unit in oil field oil-containing sludge - Google Patents

Abstract

The invention provides a sorting device for solid objects in oil-containing sludge in an oil field, which solves the problem that the solid objects in the existing oil-containing sludge are difficult to sort. The method comprises the following steps: sorting frame, box, high pressure nozzle, heater, circulating pump, the box in install sorting frame, heater and high pressure nozzle, box upper portion lateral wall open and to have the oil receiving groove, the upper portion opening of sorting frame, four walls and bottom open and have many places fretwork hole, high pressure nozzle be located the bottom of sorting frame, the circulating pump be located the box outside, the box in fill with water, the water heating that the heater was equipped with in with the box is to the temperature that enables crude oil fluidization, oily sludge is put into in sorting frame, oily sludge receives the impact of the jet stream of high temperature, crude oil fluidization, the abandonment solid limitation is in sorting frame, crude oil floats and flows in the oil receiving groove of water surface and retrieves, silt falls into the mud collection and fights and discharges. The invention can improve the treatment efficiency of the oily sludge and reduce the treatment cost.

Description

Solid article sorting unit in oil field oil-containing sludge

Technical Field

The invention relates to the technical field of oil-containing sludge treatment of oil fields, in particular to a device for sorting solid articles in oil-containing sludge of oil fields.

Background

The oily sludge is a mixture generated during the exploitation, treatment, storage and transportation of crude oil, contains crude oil, water, silt, plastic bags, fiber cloth, branches, stone tiles, iron blocks and other solid objects, and belongs to dangerous waste. The crude oil is viscous oily liquid, solid objects such as plastic bags, fiber cloth, branches, stone tiles, iron blocks and the like in the oily sludge are mixed and wrapped with the crude oil, water and silt, the solid objects are difficult to separate, great difficulty is brought to the oily sludge treatment, and the solid objects are firstly sorted out during the oily sludge treatment to be smoothly carried out.

At present, measures such as a screen, a vibrating screen and a mechanical grid are adopted in the oily sludge treatment to sort solid objects in the sludge, when in operation, plastic bags and fiber cloth are easily wound on a rotating shaft and the grid of the equipment, frequent shutdown and manual cleaning are needed, the problems of easy blockage, large labor capacity, incomplete sorting and the like exist, and the manual cleaning environment is very severe and has safety risks.

Disclosure of Invention

Based on the defects, the invention provides the device for sorting solid objects in the oil-containing sludge in the oil field, which solves the problem that the solid objects in the existing oil-containing sludge are difficult to sort.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a solid article sorting unit in oil field oily sludge, includes: the separation frame, the box body, the high-pressure nozzle, the heater and the circulating pump are installed in the box body, the separation frame, the heater and the high-pressure nozzle are installed in the box body, a sludge collecting hopper is arranged at the bottom of the box body, an oil collecting groove is formed in the side wall of the upper portion of the box body, the upper portion of the separation frame is provided with an opening, the four walls and the bottom of the separation frame are provided with a plurality of hollowed holes, the high-pressure nozzle is located at the bottom of the separation frame, the circulating pump is located outside the box body, one end of the circulating pump is connected with the high-pressure nozzle through a pipeline, the other end of the circulating pump is communicated with the inside of the box body through a pipeline, water is filled in the box body and circulates between the circulating pump and the box body, the heater heats the water in the box body to the temperature capable of fluidizing crude oil, the oily sludge is placed in the separation, the silt falls into a mud collecting hopper and is discharged.

The invention also has the following technical characteristics:

1. the sorting frame is hinged with the box body.

2. Still include pneumatic cylinder, slide and containing box, the stiff end and the outside lateral wall fixed connection of box of pneumatic cylinder, the action end of pneumatic cylinder is articulated with the upper portion of selecting separately the frame, and the pneumatic cylinder can be with selecting separately the frame from the box inside upset out the box outside, and the position when the upper portion of slide and the frame of selecting separately overturn out the box is corresponding, and the containing box has been placed to the lower part of slide.

The invention has the advantages that: the invention uses the principle that the density of crude oil is lower than the water density and the viscosity of crude oil is reduced at high temperature and the crude oil is easy to fluidize to sort out solid articles in the oily sludge, the solid articles sorted out by the invention are washed by high-temperature hot water, the oil content is less, the retreatment is convenient, the crude oil floating on the water surface is recovered, the oil content in the sorted sludge is reduced, the reduction and the burden are reduced for the subsequent treatment, the size of the residual sludge particles after the sorting is controlled by the size of the small holes of the sorting frame, the solid articles can be customized according to the subsequent treatment requirement, the equipment blockage phenomenon is avoided, and the requirement of the subsequent centrifugation or. The invention can improve the treatment efficiency of the oily sludge, reduce the treatment cost and bring remarkable economic and social benefits.

Drawings

FIG. 1 is a schematic view of the internal structure of the apparatus of the present invention;

FIG. 2 is a schematic view of the external structure of the apparatus of the present invention;

FIG. 3 is a schematic view of the apparatus of the present invention with the sorting frame turned over;

FIG. 4 is a schematic view of the structure of the sorting frame of the apparatus of the present invention;

the device comprises a sorting frame 1, a sorting frame 2, a box body 3, an oil collecting tank 4, a high-pressure nozzle 5, a heater 6, a sludge collecting hopper 7, a circulating pump 8, a slide way 9, a rotating shaft 10, a hydraulic cylinder 11 and a storage box.

Detailed Description

The invention is further illustrated by way of example in the accompanying drawings of the specification:

example 1

As shown in fig. 1-3, a device for sorting solid articles in oil-containing sludge in oil field comprises: sorting frame 1, box 2, high pressure nozzle 4, heater 5 and circulating pump 7, box 2 in install sorting frame 1, heater 5 and high pressure nozzle 4, box 2 bottom be mud collecting hopper 6, box 2 upper portion lateral wall open and to have oil receiving tank 3, sorting frame 1's upper portion opening, four walls and bottom open and have many places fretwork hole, high pressure nozzle 4 be located sorting frame 1's bottom, circulating pump 7 be located box 2 outside, circulating pump 7's one end is connected with high pressure nozzle 4 through the pipeline, its other end is through pipeline and box 2 inside intercommunication, box 2 in fill with water, water circulates between circulating pump 7 and box 2, heater 5 heats the water in box 2 to the temperature that enables crude oil fluidization, oily mud is put into sorting frame 1, oily mud receives the impact of the jet stream of high temperature, crude oil is fluidized, waste solids are limited in the separation frame 1, the crude oil floats on the water surface and flows into the oil collecting tank 3 for recovery, and silt falls into the mud collecting hopper 6 under the action of gravity and is discharged.

Example 2

The sorting unit of this embodiment still includes pneumatic cylinder 10, slide 8 and containing box 11 with embodiment 1 difference, the outside lateral wall of separation frame 1 go up along articulated through pivot 9 and box 2, the stiff end and the box 2 outside lateral wall fixed connection of pneumatic cylinder 10, the action end of pneumatic cylinder 10 is articulated with the upper portion of separation frame 1, pneumatic cylinder 10 can be with separation frame 1 from the inside upset of box 2 out the box 1 outside, the position when the upper portion of slide 8 and separation frame 1 overturn out box 2 is corresponding, containing box 11 has been placed to the lower part of slide 8. As shown in fig. 4, the sorting frame is formed by assembling and welding stainless steel pipes and perforated plates (nets), and small holes are distributed at the bottom and the periphery of the frame.

Example 3

The working principle of the sorting device of the embodiment 2 is as follows:

1. the tank 2 is first filled with water and then the heater 5 is activated to heat the water in the tank to a temperature that fluidizes the crude oil, the higher the temperature the shorter the sorting time.

2. And starting the circulating pump 7 to enable water in the box body to be sprayed to the bottom of the sorting frame from the high-pressure nozzle 4, and enabling water flow to enter the sorting frame 1 through a small hole in the bottom of the sorting frame 1.

3. Oily sludge is placed into a separation frame 1, the oily sludge is impacted by high-temperature jet water flow, crude oil is fluidized under the impact of the high-temperature jet water flow, solid articles in the separation frame are washed by the high-temperature jet water flow for a long time, the solid articles tumble and roll in the separation frame to rub with each other, crude oil adhered to the solid articles is washed away, solid articles such as plastic bags, broken cloth, branches, stone tiles and iron blocks in the oily sludge are separated from the crude oil and the sludge, the solid articles are limited in the separation frame 1, the water level height is adjusted, the crude oil flows into an oil receiving groove 3 to be recovered, and silt falls into a mud collecting hopper 6 under the action of gravity and is discharged.

4. When the solid articles in the sorting frame 1 are accumulated to a certain amount, the hydraulic cylinder 10 extends out, the sorting frame 1 rotates along the rotating shaft 9 under the pushing of the hydraulic cylinder 10, and the sorting frame 1 is pushed out of the box body 2 (see fig. 3). After the sorting frame 1 is pushed to a certain height, the solid articles in the sorting frame 1 slide down into the storage box 11 through the slide rail 8.

5. And after the solid objects in the separation frame 1 slide out, retracting the hydraulic cylinder 10, putting the separation frame into the box body 2 again, and putting the oily sludge into the separation frame for continuous cleaning.

Claims (3)

1. The utility model provides a solid article sorting unit in oil field oily sludge, includes: select separately frame, box, high pressure nozzle, heater and circulating pump, its characterized in that: the box in install and select separately the frame, heater and high pressure nozzle, bottom half for the collection mud fill, box upper portion lateral wall open and to have the oil receiving groove, the upper portion opening of selecting separately the frame, wall and bottom open have many places fretwork hole, high pressure nozzle be located the bottom of selecting separately the frame, the circulating pump be located the box outside, the one end of circulating pump is passed through the pipeline and is connected with high pressure nozzle, its other end passes through pipeline and box internal connection, the box in fill with water, the water heating that the heater was in with the box is to the temperature that enables crude oil fluidization, oily sludge is put into in the selection frame, oily sludge receives the impact of the jet stream of high temperature, crude oil fluidization, the abandonment solid limitation is in selecting separately the frame, crude oil floats in the surface of water inflow oil groove recovery, silt falls into and discharges in the collection mud fill.

2. The device for sorting solid objects in oil-containing sludge in oil field according to claim 1, wherein: the sorting frame is hinged with the box body.

3. The device for sorting solid objects in oil-containing sludge in oil field according to claim 2, characterized in that: still include pneumatic cylinder, slide and containing box, the stiff end and the outside lateral wall fixed connection of box of pneumatic cylinder, the action end of pneumatic cylinder is articulated with the upper portion of selecting separately the frame, and the pneumatic cylinder can be with selecting separately the frame from the box inside upset out the box outside, and the position when the upper portion of slide and the frame of selecting separately overturn out the box is corresponding, and the containing box has been placed to the lower part of slide.

Images