CN216197941U

CN216197941U - Multi-stage treatment system for drilling mud

Info

Publication number: CN216197941U
Application number: CN202122551855.1U
Authority: CN
Inventors: 黄博; 饶万雄; 吴定云
Original assignee: Sichuan Biyi Environmental Protection Technology Co ltd
Current assignee: Sichuan Biyi Environmental Protection Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-05
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a multistage processing system of drilling mud, which comprises a mud input mechanism and a sedimentation tank, wherein the mud input mechanism is used for conveying mud into the sedimentation tank; according to the utility model, fine silt particles are filtered through the filtering device, the filtered liquid is stirred and mixed after being added with medicine in the mixing device, the dehydrator is used for dehydrating floccules conveyed by the mixing device, the separated solid waste is conveyed into the first collecting tank, the liquid is conveyed into the second collecting tank, the slurry is fully treated in a multi-stage treatment mode, the treatment efficiency is higher, and meanwhile, the pollution to the environment caused by direct discharge is avoided.

Description

Multi-stage treatment system for drilling mud

Technical Field

The utility model relates to the technical field of mud treatment, in particular to a multistage treatment system for drilling mud.

Background

In the process of gas field water-based drilling, a large amount of mud is generated, and bentonite, water, various treatment agents, additive materials, gravel, drill cuttings and the like are often contained in the mud, so that the composition of the mud is complex, the treatment is difficult, and if the mud is directly discarded, the environment is seriously polluted due to various organic matters, heavy metals, metal salts and the like contained in the mud, and the utility model with the patent application number of CN201621051461.2 discloses a multistage treatment system of drilling mud, which comprises: the device comprises a base, a support, a slurry treatment device, a recovered liquid tank, a slurry sampling mechanism, a first detection mechanism, a first liquid medicine supply mechanism, a recovered liquid sampling mechanism, a second detection mechanism, a second liquid medicine supply mechanism, a valve and a controller; the slurry treatment equipment comprises a slurry input mechanism, large particle separation equipment, a solid recovery tank, a high-speed centrifuge and a slurry recovery tank;

above-mentioned system is when carrying out the separation to silt and handling, and the not enough of handling needs carry out repeated detection to mud during the use, and efficiency is lower, can't carry out more efficient processing to a large amount of mud.

SUMMERY OF THE UTILITY MODEL

To solve the above-described problems in the prior art, the present invention provides a multistage drilling mud treatment system.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the multistage treatment system for the drilling mud comprises a mud input mechanism and a sedimentation tank, wherein the mud input mechanism is used for conveying the mud into the sedimentation tank;

the sedimentation tank is communicated with a feed inlet of the cyclone through a sludge pump, a sand deposition outlet at the bottom of the cyclone is communicated with the first collection tank, an overflow port at the top of the cyclone is communicated with the feed inlet of the filtering device, a plurality of filtering nets are arranged in the filtering device and are uniformly distributed at intervals, and the pore diameters of the surfaces of the filtering nets are sequentially reduced;

still include mixing arrangement, medicament jar, hydroextractor, mixing arrangement's feed inlet respectively with filter equipment's discharge gate with the discharge gate intercommunication of medicament jar, mixing arrangement's discharge gate with the hydroextractor intercommunication.

Further, still include the second collecting pit, slag notch and delivery port have been seted up to the hydroextractor, the slag notch of hydroextractor with first collecting pit intercommunication, the delivery port of hydroextractor with the second collecting pit intercommunication.

Furthermore, one side of the second collecting tank is provided with a sampling detection mechanism.

Further, a delivery pump is arranged between the second collecting tank and the sedimentation tank.

Further, a metering device is arranged between the medicament tank and the mixing device.

Further, a stirring mechanism is arranged in the mixing device.

Furthermore, a drying mechanism is further arranged inside the first collecting tank.

Furthermore, a plurality of filter screens and filter equipment can dismantle the connection.

Compared with the prior art, the utility model has the beneficial effects that:

when the device is used, slurry to be treated is conveyed to a sedimentation tank through a slurry input mechanism to be precipitated, large-particle impurities are separated, the precipitated slurry is conveyed to the inside of a cyclone for further separation treatment, the treated solid silt is collected through a first collecting tank, liquid slurry enters the inside of a filtering device, fine silt particles are filtered through a plurality of layers of filtering nets, the filtered liquid waste is conveyed to the inside of a mixing device, the liquid waste is added into the mixing device and then stirred and mixed to form floccules with large volume, a dehydrator is used for dehydrating the floccules conveyed from the mixing device, the solid waste separated after the slurry is dehydrated in the dehydrator is conveyed to the first collecting tank, the liquid is conveyed to the inside of a second collecting tank, and the slurry is fully treated through a multi-stage treatment mode, the treatment efficiency is higher, and the pollution to the environment caused by direct discharge is avoided.

Drawings

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

FIG. 2 is a schematic view of a filter apparatus according to the present invention;

FIG. 3 is a schematic view of a mixing apparatus according to the present invention.

Detailed Description

In order to more clearly understand the technical features, objects and effects of the present invention, the embodiments of the present invention will be described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting.

Example (b):

the multistage treatment system of the drilling mud, including the input mechanism 1 of the mud and sedimentation tank 2, the input mechanism 1 of the mud is used for conveying the mud to the sedimentation tank 2, characterized by, also include the cyclone 3, first collecting tank 4 and filter equipment 5, the cyclone 3 has feed inlets, desilting outlet and overflow port, the filter equipment 5 has feed inlets and discharge ports;

as shown in fig. 1, in the concrete implementation, the slurry conveying mechanism 1 conveys the slurry produced by drilling to the inside of the sedimentation tank 2 for sedimentation treatment, the sedimentation tank 2 is provided with a plurality of sedimentation tanks which are arranged in a row, and the overflow is precipitated step by arranging an overflow port, so as to filter out partial solid impurities, the sedimentation tank 2 is communicated with the feed port of the cyclone 3 through a sludge pump, the precipitated slurry is pumped to the inside of the cyclone 3 for further solid-liquid separation treatment, and after the slurry enters the cyclone from the feed port at the periphery of the cyclone tangentially at a certain pressure, strong three-dimensional elliptic strong rotation shearing turbulent motion is generated. Because the particle size difference exists between the coarse particles and the fine particles, the coarse particles are subjected to different sizes such as centrifugal force, centripetal buoyancy force, fluid drag force and the like, and are subjected to centrifugal sedimentation, most of the coarse particles are discharged through a sand deposition outlet at the bottom of the cyclone, a sand deposition outlet at the bottom of the flow device 3 is communicated with the first collecting tank 4, a drying mechanism is further arranged inside the first collecting tank 4, the drying mechanism comprises a heating plate and the like, the waste entering the first collecting tank 4 is dried, the waste after being discharged enters the first collecting tank 4 to be collected, and most of the fine particles are discharged through an overflow port, so that the separation and classification purposes are achieved, and the overflow port at the top of the cyclone 3 is communicated with a feed port of the filtering device 5;

as shown in fig. 2, during the concrete implementation, the inside of filter equipment 5 is provided with a plurality of filter screens 51, and a plurality of filter screens 51 are arranged at even interval, and the aperture on the surface of a plurality of filter screens 51 decreases progressively in proper order, and mud filters through the filter screen 51 that sets up step by step after getting into filter equipment's inside, in order to avoid appearing blockking up, a plurality of filter screens 51 can be dismantled with filter equipment 5 and be connected, be convenient for change and clear up the filter screen, avoid filter screen 51 to appear influencing filterable effect after blockking up.

The device comprises a filter device 5, a chemical tank 7, a dehydrator 8 and a second collecting tank 9, wherein a feed inlet of the filter device 6 is communicated with a discharge outlet of the filter device 5 and a discharge outlet of the chemical tank 7 respectively, a discharge outlet of the filter device 6 is communicated with the dehydrator 8, the dehydrator 8 is provided with a slag outlet and a water outlet, the slag outlet of the dehydrator 8 is communicated with the first collecting tank 4, and the water outlet of the dehydrator 8 is communicated with the second collecting tank 9;

as shown in fig. 1-3, in specific implementation, the slurry liquid filtered by the filtering device 5 enters the mixing device 6, the drug tank 7 is used for delivering the drug to the interior of the mixing device 6, a metering device is arranged between the drug tank 7 and the mixing device 6, the drug delivered to the mixing device 6 is metered by the metering device, so as to avoid adding too much or too little drug, the drug is mixed with the slurry liquid in the interior of the mixing device 6, the mixing device 6 is internally provided with a stirring mechanism 61, the stirring mechanism 61 comprises a motor, a speed reducing device, a rotating shaft, stirring blades and other components, the rotating shaft is driven by the motor to rotate, a plurality of groups of stirring blades are arranged on the rotating shaft, through holes are arranged on the surfaces of the stirring blades, so as to facilitate the sufficient stirring and mixing of the slurry mixed liquid, during the stirring process, the flocculent mass is relatively large, and the flocculent mass is delivered to the interior of the dehydrator 8 for processing after mixing, the dehydrator 8 is used for dehydrating the floccule conveyed by the mixing device 6, solid waste separated after slurry in the dehydrator 8 is dehydrated is conveyed into the first collecting tank 4, waste liquid is conveyed into the second collecting tank 9, one side of the second collecting tank 9 is provided with a sampling detection mechanism, the sampling detection mechanism comprises a humidity sensor, a pH value sensor, a heavy metal detector, an organic impurity detector and other detection equipment, so as to sample and detect the liquid in the second collecting tank 9 and judge whether the liquid reaches a treatment standard or not, when the liquid does not reach the treatment standard, repeated treatment is needed, a conveying pump is arranged between the second collecting tank 9 and the sedimentation tank 2, the liquid waste in the second collecting tank 9 is conveyed into the sedimentation tank 2 through the conveying pump, thick slurry in the sedimentation tank 2 can be diluted and recycled, the waste of water resource is reduced, mud is fully processed by a multi-stage processing mode, the processing efficiency is higher, and the pollution to the environment caused by direct discharge is avoided.

The above description is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to be covered by the appended claims.

Claims

1. The multistage treatment system for the drilling mud comprises a mud input mechanism (1) and a sedimentation tank (2), wherein the mud input mechanism (1) is used for conveying the mud into the sedimentation tank (2), and is characterized by further comprising a cyclone (3), a first collecting tank (4) and a filtering device (5), wherein the cyclone (3) is provided with a feeding hole, a sediment outlet and an overflow hole, and the filtering device (5) is provided with a feeding hole and a discharging hole;

the sedimentation tank (2) is communicated with a feeding hole of the cyclone (3) through a sludge pump, a sand deposition outlet at the bottom of the cyclone (3) is communicated with the first collecting tank (4), an overflow port at the top of the cyclone (3) is communicated with a feeding hole of the filtering device (5), a plurality of filtering nets (51) are arranged in the filtering device (5), the filtering nets (51) are uniformly distributed at intervals, and the pore diameters of the surfaces of the filtering nets (51) are gradually reduced;

still include mixing arrangement (6), medicament jar (7), hydroextractor (8), the feed inlet of mixing arrangement (6) respectively with the discharge gate of filter equipment (5) with the discharge gate intercommunication of medicament jar (7), the discharge gate of mixing arrangement (6) with hydroextractor (8) intercommunication.

2. The multistage drilling mud treatment system according to claim 1, further comprising a second collecting tank (9), wherein the dewatering machine (8) is provided with a slag outlet and a water outlet, the slag outlet of the dewatering machine (8) is communicated with the first collecting tank (4), and the water outlet of the dewatering machine (8) is communicated with the second collecting tank (9).

3. A system for multistage treatment of drilling mud according to claim 2, wherein one side of the second collection basin (9) is provided with a sampling detection mechanism.

4. A system for multistage treatment of drilling mud according to claim 3, characterized in that a transfer pump is arranged between the second collection basin (9) and the settling basin (2).

5. The system for multistage treatment of drilling mud according to claim 1, characterized in that a metering device is arranged between the agent tank (7) and the mixing device (6).

6. The system for multistage treatment of drilling mud according to claim 1, characterized in that the mixing device (6) is internally provided with stirring means (61).

7. The system for multistage treatment of drilling mud according to claim 1, characterized in that the first collection basin (4) is also internally provided with a drying mechanism.

8. A system for multistage treatment of drilling mud according to claim 1, wherein several of said filter screens (51) are removably connected to said filtering means (5).