CN217265392U - Drilling mud dewatering device - Google Patents

Abstract

The utility model discloses a drilling mud dewatering device, include: a slurry storage tank; a feed pipe of the spraying machine extends into the slurry storage tank and is positioned below the liquid level of the slurry; the belt type vacuum dehydrator comprises a driving wheel, a filter belt and a driven wheel, wherein the driving wheel rotates under the driving of a power mechanism, and the filter belt is arranged on the driving wheel and the driven wheel, moves under the driving of the driving wheel and sequentially passes through a vacuum area and a back flushing area; the vacuum chamber is arranged in the vacuum area, is communicated with the vacuum generation assembly and is communicated with the water collecting tank through a water collecting pipeline; the nozzle, the nozzle set up in the anti-district that sweeps, just the nozzle sweeps the filter belt, the below of nozzle is provided with the dehydration mud receiving tray. The technical problem of high cost of drilling mud during dewatering in the prior art is solved.

Description

Drilling mud dewatering device

Technical Field

The utility model relates to an oil field corollary equipment technical field especially relates to a drilling mud dewatering device.

Background

The slurry generated during drilling generally contains solid waste and liquid waste, and when the slurry is processed without falling to the ground, the solid waste and the liquid waste need to be processed separately. However, the existing drilling mud needs to use a large amount of flocculant during dewatering, and the treatment cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drilling mud dewatering device to at least part is solved prior art, the higher technical problem of drilling mud cost when the dehydration. The purpose is realized by the following technical scheme:

the utility model provides a drilling mud dewatering device, include:

a slurry storage tank;

a feed pipe of the spraying machine extends into the slurry storage tank and is positioned below the slurry liquid level;

the belt type vacuum dehydrator comprises a driving wheel, a filter belt and a driven wheel, wherein the driving wheel rotates under the driving of a power mechanism, the filter belt is arranged on the driving wheel and the driven wheel, moves under the driving of the driving wheel and sequentially passes through a vacuum area and a back flushing area;

the vacuum chamber is arranged in the vacuum area, is communicated with the vacuum generation assembly and is communicated with the water collecting tank through a water collecting pipeline;

the nozzle, the nozzle set up in the anti-district that sweeps, just the nozzle sweeps the filter belt, the below of nozzle is provided with the dehydration mud receiving tray.

Further, still include the ball valve, the ball valve is installed on the collector line.

Further, still include the support frame, the action wheel is rotationally installed in the top of support frame.

Furthermore, the number of the support frames is two, and the two support frames are respectively arranged on two sides of the vacuum chamber;

the driving wheels are two and are respectively and rotatably arranged on the supporting frame.

Further, the vacuum generating assembly comprises:

a vacuum pump;

the buffer tank is communicated with the vacuum pump through a pipeline and communicated with the vacuum chamber through a vacuum tube;

and the water tank is communicated with the vacuum pump through a pipeline.

In one or more specific embodiments, the utility model provides a drilling mud dewatering device has following technological effect:

the utility model provides a drilling mud dewatering device is through setting up mud holding vessel, sprinkler, belt vacuum dehydration machine and vacuum pump. In the working process, starting a vacuum pump to enable a vacuum chamber to be in a vacuum state; spraying the slurry to be treated in the slurry storage tank onto a filter belt of a belt type vacuum dehydrator through a spraying machine, enabling the filter belt to rotate at a constant speed, and enabling water in the slurry to enter a vacuum chamber through the filter belt under the action of negative pressure and to be discharged into a water collecting tank; along with the rotation of the filter belt, the solid particles attached to the surface of the filter belt pass through the vacuum area and then reach the back blowing area, strong airflow blows the filter belt through the nozzles distributed in the back blowing area, and the solid particles attached to the upper surface of the filter belt are blown down to the dewatered sludge receiving tray to complete solid-liquid separation. The drilling mud dewatering device realizes mud dewatering through vacuum negative pressure, reduces the use of flocculating agents in the mud treatment process, and solves the technical problem that the drilling mud is high in cost during dewatering in the prior art. In addition, the device realizes continuous operation, and the equipment has low operation cost and high efficiency.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of a specific embodiment of the drilling mud dewatering device provided by the present invention.

The reference numbers are as follows:

1-a slurry storage tank, 2-a spraying machine, 3-a driving wheel, 4-a filter belt and 5-a driven wheel;

6-vacuum chamber, 7-water collecting tank, 8-nozzle, 9-dehydrated sludge receiving tray and 10-support frame;

11-vacuum pump, 12-buffer tank, 13-water tank.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a drilling mud dewatering device according to an embodiment of the present invention.

In one embodiment, the present invention provides a drilling mud dewatering device comprising a mud storage tank 1, a sprayer 2, a belt vacuum dewatering machine, a vacuum chamber 6, and a nozzle 8. The slurry storage tank 1 is a tank body for containing slurry to be treated, and the tank body can be a square tank or a cylindrical tank body. The feed pipes of the spraying machine 2 extend into the slurry storage tank 1 and in order to ensure that the slurry is pumped out, the feed pipes of the spraying machine 2 need to be located below the slurry level. Because the liquid level of the slurry is dynamically changed during working, a feed pipe of the spraying machine 2 can extend to the bottom of the tank body as much as possible; also, it will be appreciated that a suction pump is also mounted on the feed pipe of the spraying machine 2 to facilitate the drawing of the sludge to be treated into the feed pipe.

The belt type vacuum dehydrator comprises a driving wheel 3, a filter belt 4 and a driven wheel 5, wherein the driving wheel 3 rotates under the driving of a power mechanism, the filter belt 4 is installed on the driving wheel 3 and the driven wheel 5 and moves under the driving of the driving wheel 3, and the vacuum zone and the back flushing sweeping zone are sequentially passed through. During the operation, the slurry to be treated is sprayed on the filter belt 4 through the spraying machine 2, and during the movement of the filter belt 4, the water in the slurry on the filter belt 4 is separated from the solid under the action of negative pressure through the vacuum area and falls into the vacuum chamber 6 through the filter belt 4, and the solid components in the slurry are left on the surface of the filter belt 4.

The vacuum chamber 6 is arranged in the vacuum area, the vacuum chamber 6 is communicated with the vacuum generating assembly, and the vacuum chamber 6 is communicated with the water collecting tank 7 through a water collecting pipeline. After the slurry on the filter belt 4 is subjected to solid-liquid separation by negative pressure, liquid components (namely water) fall into the vacuum chamber 6 and then enter the water collecting tank 7 through the water supply pipeline, so that the collection of the liquid components is realized.

The nozzle 8 is arranged in the reverse blowing area, the filter belt 4 is blown by the nozzle 8, and a dewatered sludge receiving disc 9 is arranged below the nozzle 8. The pipeline where the nozzle 8 is located is communicated with a compressed air source, and high-pressure air in the compressed air source is sprayed out through the nozzle 8 to sweep the filter belt 4. Multiple sets of nozzles 8 may be provided to enhance the purging effect. When the slurry on the filter belt 4 is subjected to negative pressure to realize solid-liquid separation, solid components are remained on the filter belt 4 and continue to move along with the filter belt 4, and when the slurry moves to a back flushing zone, the nozzle 8 sweeps the filter belt 4 and blows the solid components on the surface of the filter belt 4 down to the dewatered sludge receiving disc so as to realize the collection of the solid components.

During operation, when the sump 7 is full, collection needs to be stopped. Thus, a ball valve, which may be a manual ball valve, may be provided on the water collection line.

In order to facilitate the installation of the driving wheel 3, the device further comprises a support frame 10, and the driving wheel 3 is rotatably installed at the top of the support frame 10. Optionally, there are two support frames 10, the two support frames 10 are respectively disposed on two sides of the vacuum chamber 6, there are two driving wheels 3, and the two driving wheels 3 are respectively rotatably mounted on the support frames 10.

In some embodiments, the vacuum generating assembly comprises a vacuum pump 11, a buffer tank 12 and a water tank 13, wherein the buffer tank 12 is in communication with the vacuum pump 11 through a pipeline, the buffer tank 12 is in communication with the vacuum chamber 6 through a vacuum pipe, and the water tank 13 is in communication with the vacuum pump 11 through a pipeline.

In the above embodiment, the present invention provides a drilling mud dewatering device, which is provided with a mud storage tank 1, a spraying machine 2, a belt type vacuum dewatering machine and a vacuum pump 11. In the working process, the vacuum pump 11 is started to ensure that the vacuum chamber 6 is in a vacuum state; spraying the slurry to be treated in the slurry storage tank 1 onto a filter belt 4 of a belt type vacuum dehydrator through a spraying machine 2, enabling the filter belt 4 to rotate at a constant speed, and enabling water in the slurry to enter a vacuum chamber 6 through the filter belt 4 under the action of negative pressure and to be discharged into a water collecting tank 7; along with the rotation of the filter belt 4, the solid particles attached to the surface of the filter belt 4 pass through the vacuum area and then reach the back blowing area, strong airflow blows the filter belt 4 through the nozzles 8 distributed in the back blowing area, and the solid particles attached to the upper surface of the filter belt 4 are blown down to the dewatered sludge receiving tray 9, so that solid-liquid separation is completed. The drilling mud dewatering device realizes mud dewatering through vacuum negative pressure, reduces the use of flocculating agents in the mud treatment process, and solves the technical problem that the drilling mud is high in cost during dewatering in the prior art. In addition, the device realizes continuous uninterrupted operation, and the equipment has low operation cost and high efficiency.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (5)

1. A drilling mud dewatering device, comprising:

a slurry storage tank (1);

the feeding pipe of the spraying machine (2) extends into the slurry storage tank (1) and is positioned below the slurry liquid level;

the belt type vacuum dehydrator comprises a driving wheel (3), a filter belt (4) and a driven wheel (5), wherein the driving wheel (3) rotates under the driving of a power mechanism, the filter belt (4) is installed on the driving wheel (3) and the driven wheel (5), moves under the driving of the driving wheel (3), and sequentially passes through a vacuum area and a back flushing area;

the vacuum chamber (6) is arranged in the vacuum area, the vacuum chamber (6) is communicated with the vacuum generation assembly, and the vacuum chamber (6) is communicated with the water collecting tank (7) through a water collecting pipeline;

the nozzle (8), the nozzle (8) set up in the anti-district that sweeps, just nozzle (8) sweep filter belt (4), the below of nozzle (8) is provided with dehydration mud receiving tray (9).

2. The drilling mud dewatering device of claim 1, further comprising a ball valve mounted to the manifold.

3. A drilling mud dewatering device according to claim 1, further comprising a support frame (10), the drive wheel (3) being rotatably mounted on top of the support frame (10).

4. A drilling mud dewatering device according to claim 3, wherein there are two support stands (10), two support stands (10) being provided on either side of the vacuum chamber (6);

the number of the driving wheels (3) is two, and the two driving wheels (3) are respectively and rotatably arranged on the supporting frame (10).

5. The drilling mud dewatering apparatus of claim 1, wherein the vacuum generating assembly comprises:

a vacuum pump (11);

the buffer tank (12), the said buffer tank (12) is communicated with the said vacuum pump (11) through the pipeline, the said buffer tank (12) is communicated with the said vacuum chamber (6) through the vacuum tube;

the water tank (13) is communicated with the vacuum pump (11) through a pipeline.

Images