Solid-liquid separation equipment for oil field waste liquid treatment

Abstract

The utility model discloses oil field waste liquid treatment solid-liquid separation equipment which comprises a waste liquid pool, a conveying pipe fixedly connected to the outer surface of the waste liquid pool, a filter cylinder fixedly connected to the end, away from the waste liquid pool, of the conveying pipe, a motor fixedly connected to the inner surface of the filter cylinder, an auger fixedly connected to the output end of the motor, and filter holes formed in the auger. The outer surface of the filter cartridge is fixedly connected with a discharge port, the outer surface of the waste liquid pool is fixedly connected with a placement box, the upper surface of the placement box is fixedly connected with a fan, the output end of the fan is fixedly connected with a heater, and the output end of the heater is fixedly connected with an air pipe. According to the device, liquid can be filtered in the process of conveying waste liquid upwards, so that solid and liquid can be quickly and effectively separated, manual operation is not needed, and the working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation, and particularly relates to a solid-liquid separation device for treating oilfield waste liquid. Background Art

[0002] During the oil extraction process, a large amount of waste liquid of different types is generated, such as drilling wastewater, production wastewater, washing wastewater, etc. These waste liquids contain a large amount of solids, some of which contain harmful components and some of which can be recycled. Therefore, solid-liquid separation is required. Traditional solid-liquid separation methods include the static settling method, the filtration method, etc., but the efficiency is low and it is not conducive to resource utilization. For example, China has disclosed "a coagulation air flotation device for treating oilfield waste liquid", and its application number is: "CN202321112482.0". By setting a coagulation zone, a flocculation zone and a solid-liquid separation zone, it can integrate the coagulation, flocculation and solid-liquid separation areas, reduce the floor area of the device and simplify the operation of the equipment. However, its separation speed is slow and it cannot quickly and effectively separate solids from liquids. It cannot remove the moisture on the surface and inside of the solids in a short time, so the subsequent treatment and disposal time of the solids cannot be shortened. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a solid-liquid separation device for treating oilfield waste liquid. Through the cooperation of a motor, a screw conveyor, filter holes and a discharge port, during the process of transporting the waste liquid upward, the liquid can be filtered, so that solids and liquids can be quickly and effectively separated, and manual operation is not required, which can improve work efficiency; through the cooperation of a fan, a heater, an air duct and an air outlet plate, the separated solids can be quickly dried, the moisture on the surface and inside of the solids can be removed in a short time, and the subsequent treatment and disposal time of the solids can be shortened, thus facilitating the subsequent treatment of the solids.

[0004] The present utility model also provides a solid-liquid separation device for treating oilfield waste liquid with the above-mentioned features, including: a waste liquid pool, an outer surface of the waste liquid pool is fixedly connected with a conveying pipe, one end of the conveying pipe away from the waste liquid pool is fixedly connected with a filter cylinder, an inner surface of the filter cylinder is fixedly connected with a motor, an output end of the motor is fixedly connected with a screw conveyor, the screw conveyor is provided with filter holes, an outer surface of the filter cylinder is fixedly connected with a discharge port, an outer surface of the waste liquid pool is fixedly connected with a placement box, an upper surface of the placement box is fixedly connected with a blower, an output end of the blower is fixedly connected with a heater, an output end of the heater is fixedly connected with an air duct, and one end of the air duct away from the heater is fixedly connected with an air outlet plate. Through the cooperation of the motor, the screw conveyor, the filter holes and the discharge port, during the process of conveying the waste liquid upwards, the liquid can be filtered, so that the solid and the liquid can be separated quickly and effectively, and manual operation is not required, which can improve the work efficiency; through the cooperation of the blower, the heater, the air duct and the air outlet plate, the separated solid can be quickly dried, the moisture on the surface and inside of the solid can be removed in a short time, and the subsequent treatment and disposal time of the solid can be shortened, thus facilitating the subsequent treatment of the solid.

[0005] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, the screw conveyor is movably connected with the filter cylinder, and the screw conveyor is movably connected with the discharge port, which can effectively filter the liquid and convey the solid to the discharge port.

[0006] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, the discharge port is fixedly connected with the placement box, and the heater is fixedly connected with the inner top surface of the placement box, which can ensure the stability of the connection between the devices.

[0007] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, a first liquid discharge port is fixedly connected to a lower surface of the filter cylinder, and the first liquid discharge port is bent, which can discharge the liquid for subsequent treatment.

[0008] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, a placement plate is fixedly connected to an inner surface of the placement box, and the placement plate is provided with leakage holes, which can place the solid and filter the residual moisture on the surface of the solid.

[0009] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, a second liquid discharge port is fixedly connected to an outer surface of the placement box, and the second liquid discharge port is located below the filter plate, which can conveniently discharge the dried moisture.

[0010] According to the solid-liquid separation device for treating oilfield waste liquid of the present utility model, the second liquid discharge port is inclined, which can accelerate the outflow speed of the liquid.

[0011] A solid-liquid separation device for treating oilfield waste liquid according to the present utility model, a protection door is movably connected to the outer surface of the placement box, and an observation window is arranged on the protection door, which can conveniently observe the operation of the equipment inside, so as to make adjustments in time.

[0012] Advantageous effects

[0013] 1. Compared with the prior art, this new type of solid-liquid separation device for treating oilfield waste liquid can filter the liquid during the upward transmission of the waste liquid through the cooperation of the motor, auger, filter holes and discharge port, so as to quickly and effectively separate solids and liquids, and no manual operation is required, which can improve work efficiency.

[0014] 2. Compared with the prior art, this new type of solid-liquid separation device for treating oilfield waste liquid can quickly dry the separated solids through the cooperation of the fan, heater, air duct and air outlet plate, can remove the moisture on the surface and inside of the solids in a short time, shorten the subsequent treatment and disposal time of the solids, and thus facilitate the subsequent treatment of the solids. Description of the drawings

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a sectional structure diagram of the solid-liquid separation device for treating oilfield waste liquid of the present utility model;

[0017] Figure 2 It is a three-dimensional structure diagram of the solid-liquid separation device for treating oilfield waste liquid of the present utility model;

[0018] Figure 3 It is a schematic diagram of the auger connection structure of the solid-liquid separation device for treating oilfield waste liquid of the present utility model;

[0019] Figure 4 It is a structural diagram of the interior of the placement box of the solid-liquid separation device for treating oilfield waste liquid of the present utility model.

[0020] Legend description:

[0021] 1. Waste liquid pool; 2. Delivery pipe; 3. Filter cylinder; 4. Motor; 5. Auger; 6. Filter hole; 7. Discharge port; 8. Placement box; 9. Fan; 10. Air duct; 11. Heater; 12. Air outlet plate. Specific embodiments

[0022] This part will describe the specific embodiments of the present utility model in detail. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , in an embodiment of the utility model, a solid-liquid separation device for treating oilfield waste liquid includes: a waste liquid pool 1 for placing waste liquid. A delivery pipe 2 is fixedly connected to the outer surface of the waste liquid pool 1 for delivering the waste liquid into a filter cylinder 3. One end of the delivery pipe 2 away from the waste liquid pool 1 is fixedly connected to the filter cylinder 3 for filtering solids. A motor 4 is fixedly connected to the inner surface of the filter cylinder 3 for driving an auger 5. The output end of the motor 4 is fixedly connected to the auger 5 for conveying the waste liquid and solids upward. Filter holes 6 are provided on the auger 5 for filtering liquid. A discharge port 7 is fixedly connected to the outer surface of the filter cylinder 3 for discharging solid particles. A placement box 8 is fixedly connected to the outer surface of the waste liquid pool 1 for placing solids. A blower 9 is fixedly connected to the upper surface of the placement box 8 for providing air flow. A heater 11 is fixedly connected to the output end of the blower 9 for heating the air flow. An air duct 10 is fixedly connected to the output end of the heater 11 for conveying the air flow. One end of the air duct 10 away from the heater 11 is fixedly connected to an air outlet plate 12 for ejecting hot air.

[0024] The auger 5 is movably connected to the filter cylinder 3 for the auger 5 to convey the waste liquid in the filter cylinder 3 upward. The auger 5 is movably connected to the discharge port 7 for conveying solids to the discharge port 7. The discharge port 7 is fixedly connected to the placement box 8 for conveying solids into the placement box 8. The heater 11 is fixedly connected to the inner top surface of the placement box 8 for fixing the heater 11. A first liquid discharge port is fixedly connected to the lower surface of the filter cylinder 3. The first liquid discharge port is bent for discharging the filtered waste liquid. A placement plate is fixedly connected to the inner surface of the placement box 8 for placing solids. Leak holes are provided on the placement plate for filtering out the moisture on the surface of the solids. A second liquid discharge port is fixedly connected to the outer surface of the placement box 8. The second liquid discharge port is located below the filter plate and is inclined for discharging the dried moisture. A protection door is movably connected to the outer surface of the placement box 8 for protecting the equipment inside the placement box. An observation window is provided on the protection door for observing the operation condition inside the placement box.

[0025] Working principle: When in use, the delivery pipe 2 conveys the waste liquid in the waste liquid pool 1 into the filter cylinder 3. Then the motor 4 rotates the auger 5 to convey the waste liquid upward. Then the liquid is filtered through the filter holes 6 and discharged downward. The solids are conveyed by the auger 5 to the discharge port 7 and enter the placement box 8. Then the blower 9 provides wind power which is heated by the heater 11 and then conveyed through the air duct 10 to the air outlet plate 12 to eject and dry the solids. Then the staff classifies them.

[0026] The above has described in detail the embodiments of the utility model in conjunction with the drawings. However, the utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the relevant art, various changes can be made without departing from the gist of the utility model.

Claims

1. A solid-liquid separation equipment for oilfield waste liquid treatment, characterized in that: include: A waste liquid pool (1), wherein the outer surface of the waste liquid pool (1) is fixedly connected to a delivery pipe (2), the end of the delivery pipe (2) away from the waste liquid pool (1) is fixedly connected to a filter cartridge (3), the inner surface of the filter cartridge (3) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to an auger (5), the auger (5) is provided with a filter hole (6), the outer surface of the filter cartridge (3) is fixedly connected to a discharge port (7), the outer surface of the waste liquid pool (1) is fixedly connected to a placement box (8), the upper surface of the placement box (8) is fixedly connected to a fan (9), the output end of the fan (9) is fixedly connected to a heater (11), the output end of the heater (11) is fixedly connected to an air duct (10), and the end of the air duct (10) away from the heater (11) is fixedly connected to an air outlet plate (12).

2. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: The auger (5) is movably connected to the filter cartridge (3), and the auger (5) is movably connected to the discharge port (7).

3. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: The discharge port (7) is fixedly connected to the placement box (8), and the heater (11) is fixedly connected to the inner top surface of the placement box (8).

4. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: The lower surface of the filter cartridge (3) is fixedly connected with a first liquid discharge port, and the first liquid discharge port is in a bent shape.

5. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: A placement plate is fixedly connected to the inner surface of the placement box (8), and a leakage hole is arranged on the placement plate.

6. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: The outer surface of the placement box (8) is fixedly connected with a second liquid discharge port, and the second liquid discharge port is located below the filter plate.

7. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 6, characterized in that: The second liquid discharge port is inclined.

8. The solid-liquid separation equipment for treating oilfield waste liquid according to claim 1, characterized in that: The outer surface of the placement box (8) is movably connected with a protection door, and the protection door is provided with an observation window.

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