A device for the harmless treatment of waste oil-based and water-based drilling fluids

Abstract

This utility model relates to the field of water treatment technology, specifically a device for the harmless treatment of waste oil-based and water-based drilling fluids. It includes a decomposition tank, a decomposition main pipe, and an oxygen generator. The decomposition main pipe has multiple oxygen holes, and the outlet of the oxygen generator is connected to the interior of the decomposition main pipe via an oxygen pipe. An air pump is installed on the oxygen pipe. In use, the waste oil-based and water-based drilling fluid to be treated is injected into the decomposition tank, and microbial composite flora and microbial materials are added to the tank. Oxygen generated by the oxygen generator is pumped into the decomposition main pipe through the air pump and oxygen pipe. The oxygen enters the decomposition tank through the oxygen holes, providing sufficient oxygen to the microbial composite flora within the tank, accelerating their metabolism, and thus improving their decomposition effect. This utility model provides a sufficient oxygen-rich decomposition environment for the microbial composite flora, improving their decomposition efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a device for the harmless treatment of waste oil-based and water-based drilling fluids. Background Technology

[0002] The main components of waste oil-based and water-based drilling fluids are diesel oil, water mixed with suspended solids, and clay. Most existing waste oil-based and water-based drilling fluids are treated with harmless decomposition by microbial complex flora. Through the growth and reproduction of microorganisms in the waste mud, the harmful components in the waste mud that endanger the ecological environment are efficiently degraded and transformed through complex biological and chemical processes, so as to detoxify, degumme, desalinate, and dehydrate them, achieving the purpose of harmless treatment by microorganisms. This allows the soil environment polluted after oil and gas field drilling to be bioremediated and the ecological environment to be restored.

[0003] Existing microbial communities used for decomposing waste oil-based and water-based drilling fluids are mainly aerobic bacteria such as Pseudomonas and Bacillus. Their degradation of hydrocarbon organic matter requires oxygen as the final electron acceptor, and a dissolved oxygen concentration of 1-2 mg / L needs to be maintained to support efficient metabolism. However, current waste oil-based and water-based drilling fluid harmless treatment devices cannot provide a sufficiently oxygenated decomposition environment for the microbial complex community, making the existing microbial decomposition effect unsatisfactory. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a waste oil-based and water-based drilling fluid harmless treatment device that can provide a sufficiently oxygenated decomposition environment for microbial complex flora, thereby improving the decomposition effect of microbial complex flora.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for the harmless treatment of waste oil-based and water-based drilling fluid includes a decomposition tank, a decomposition main pipe fixed to the bottom of the decomposition tank, an oxygen generator provided on one side of the decomposition tank, a plurality of oxygen holes provided on the decomposition main pipe, the outlet end of the oxygen generator being connected to the interior of the decomposition main pipe through an oxygen pipe, and an air intake pump being provided on the oxygen pipe.

[0007] Furthermore, a temperature sensor, multiple electric heating tubes, and a temperature-sensitive switch electrically connected to the electric heating tubes are embedded on the inner wall of the decomposition tank.

[0008] Furthermore, the decomposition tank is equipped with a tank cover, on which a feed pipe and an exhaust pipe are installed. A stirring shaft is rotatably connected to the decomposition tank, and multiple stirring blades are installed on the stirring shaft. The top end of the stirring shaft rotates through the tank cover and is connected to a motor, which is fixed to the tank cover.

[0009] Furthermore, the feed pipe is equipped with a feed valve, and the exhaust pipe is equipped with an air filter and an exhaust pump.

[0010] Furthermore, a drain pipe is connected to one side of the bottom of the decomposition tank, and a valve is installed on the drain pipe.

[0011] Furthermore, the main decomposition tube is a spiral tube.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, waste oil-based and water-based drilling fluid to be treated is injected into the decomposition tank, and microbial complex and microbial materials are added to the decomposition tank. Oxygen generated by an oxygen generator is pumped into the main decomposition pipe through an air pump and oxygen pipe. The oxygen enters the decomposition tank through oxygen holes, providing a sufficient oxygen environment for the microbial complex in the decomposition tank, accelerating the metabolism of the microbial complex, and thus improving the decomposition effect of the microbial complex. This utility model can provide a sufficient oxygen decomposition environment for the microbial complex, thereby improving the decomposition effect of the microbial complex. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is the front view of this utility model;

[0016] Figure 3 This is a cross-sectional view of the decomposition tank in this utility model;

[0017] Figure 4 This is a top view of the disassembled main tube in this utility model;

[0018] Reference numerals: Decomposition tank 1; tank cover 11; feed pipe 12; exhaust pipe 13; air filter 131; exhaust pump 132; stirring shaft 14; stirring blade 15; motor 16; drain pipe 17; main decomposition pipe 2; oxygen port 21; oxygen generator 3; oxygen pipe 4; air intake pump 5; temperature sensor 61; electric heating element 62; temperature-sensitive switch 63. Detailed Implementation

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a device for the harmless treatment of waste oil-based and water-based drilling fluid includes a decomposition tank 1, a decomposition main pipe 2 fixed at the bottom of the decomposition tank 1, an oxygen generator 3 provided on one side of the decomposition tank 1, a plurality of oxygen holes 21 provided on the decomposition main pipe 2, the outlet end of the oxygen generator 3 being connected to the interior of the decomposition main pipe 2 through an oxygen pipe 4, and an air intake pump 5 provided on the oxygen pipe 4.

[0020] In use, the waste oil-based and water-based drilling fluid to be treated is injected into the decomposition tank 1, and microbial complex and microbial materials are added into the decomposition tank 1. Oxygen generated by the oxygen generator 3 is pumped into the decomposition main pipe 2 through the air pump 5 and the oxygen pipe 4. The oxygen enters the decomposition tank 1 through the oxygen hole 21, providing a sufficient oxygen environment for the microbial complex in the decomposition tank 1, accelerating the metabolism of the microbial complex, and thus improving the decomposition effect of the microbial complex. This utility model can provide a sufficient oxygen decomposition environment for the microbial complex, thereby improving the decomposition effect of the microbial complex.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a temperature sensor 61 and multiple electric heating tubes 62 are embedded in the inner wall of the decomposition tank 1, and a temperature-sensitive switch 63 is electrically connected to the electric heating tubes 62. In this embodiment, since the optimal temperature for the complex microbial flora such as Bacillus spp. and Bacillus spp. is 30-40°C, when the temperature sensor 61 shows that the outside temperature is below 30°C, the electric heating tubes 62 can be manually turned on to heat the decomposition tank 1. When the temperature inside the decomposition tank 1 is above 40°C, the temperature-sensitive switch 63 can automatically turn off the power to the electric heating tubes 62.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the decomposition tank 1 is provided with a tank cover 11, and the tank cover 11 is provided with a feed pipe 12 and an exhaust pipe 13. A stirring shaft 14 is rotatably connected in the decomposition tank 1, and multiple stirring blades 15 are provided on the stirring shaft 14. The top end of the stirring shaft 14 rotates through the tank cover 11 and is connected to a motor 16, which is fixed on the tank cover 11. In this embodiment, the stirring shaft 14 driven by the motor 16 drives the stirring blades 15 to rotate, which can make the waste oil-based and water-based drilling fluid in the decomposition tank 1 come into more sufficient contact with oxygen and microbial complex, and can also make the heating of the electric heating tube 62 more uniform.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the feed pipe 12 is equipped with a feed valve, and the exhaust pipe 13 is equipped with an air filter 131 and an exhaust pump 132. In this embodiment, the feed pipe 12 is closed by the feed valve housing, and the exhaust pump 132 and the air filter 131 can extract, filter and discharge the exhaust gas generated during decomposition.

[0024] like Figure 1 , Figure 2 , Figure 3and Figure 4 As shown, a drain pipe 17 is connected to one side of the bottom of the decomposition tank 1, and a valve is provided on the drain pipe 17; in this embodiment, the treated liquid can be discharged by opening the drain pipe 17 through the valve.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the decomposition main pipe 2 is a spiral tube. In this embodiment, when the decomposition main pipe 2 is a spiral tube, the length extending into the decomposition tank 1 is longer, the oxygenation area is larger, and the oxygenation effect is better.

[0026] It also includes a microcontroller controller. The oxygen generator 3, the air pump 5, the temperature sensor 61, the electric heating tube 62, the motor 16, the feed valve and the exhaust pump 132 are all electrically connected to the microcontroller controller. Since the microcontroller controller in this application was purchased and debugged directly, its specific structure is not described in detail.

[0027] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A device for the harmless treatment of waste oil-based and water-based drilling fluids, characterized in that: It includes a decomposition tank (1), a decomposition main pipe (2) fixed at the bottom of the decomposition tank (1), an oxygen generator (3) is provided on one side of the decomposition tank (1), a plurality of oxygen holes (21) are provided on the decomposition main pipe (2), the outlet end of the oxygen generator (3) is connected to the inside of the decomposition main pipe (2) through an oxygen pipe (4), and an air intake pump (5) is provided on the oxygen pipe (4).

2. The waste oil-based and water-based drilling fluid harmless treatment device according to claim 1, characterized in that, A temperature sensor (61), multiple electric heating tubes (62), and a temperature-sensitive switch (63) electrically connected to the electric heating tubes (62) are embedded on the inner wall of the decomposition tank (1).

3. The waste oil-based and water-based drilling fluid harmless treatment device according to claim 2, characterized in that, The decomposition tank (1) is provided with a tank cover (11), and the tank cover (11) is provided with a feed pipe (12) and an exhaust pipe (13). A stirring shaft (14) is rotatably connected in the decomposition tank (1), and multiple stirring blades (15) are provided on the stirring shaft (14). The top end of the stirring shaft (14) rotates through the tank cover (11) and is connected to a motor (16). The motor (16) is fixed on the tank cover (11).

4. The waste oil-based and water-based drilling fluid harmless treatment device according to claim 3, characterized in that, The feed pipe (12) is equipped with a feed valve, and the exhaust pipe (13) is equipped with an air filter (131) and an exhaust pump (132).

5. The waste oil-based and water-based drilling fluid harmless treatment device according to claim 1, characterized in that, A drain pipe (17) is connected to one side of the bottom of the decomposition tank (1), and a valve is provided on the drain pipe (17).

6. The waste oil-based and water-based drilling fluid harmless treatment device according to claim 1, characterized in that, The main decomposition tube (2) is a spiral tube.

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