CN217780787U

CN217780787U - Equipment for separating and recycling waste oil-based slurry

Info

Publication number: CN217780787U
Application number: CN202221998637.0U
Authority: CN
Inventors: 陈友明
Original assignee: Xinjiang Tianxia Investment Environmental Protection Technology Co ltd
Current assignee: Xinjiang Tianxia Investment Environmental Protection Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-11
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses an equipment for waste oil base mud separation is retrieved relates to oil base mud and retrieves technical field, including fatlute pipeline, set up the oil sludge pump on fatlute pipeline, with fatlute concentrated jar, the sedimentation tank of being connected with fatlute concentrated jar that fatlute pipeline communicates, sedimentation tank upper portion waste water comes to connect in proper order through the waste water treatment pipeline and has connect filter one and filter two that flow can be adjusted, the oil base mud that sedimentation tank lower part depositd passes through the conveyer and gets into horizontal screw centrifuge, horizontal screw centrifuge includes liquid outlet and solid export, and the liquid outlet is connected with basic oil buffer tank through pipeline, the solid export below is provided with the mud conveyer belt, the discharge gate of mud conveyer belt is provided with the collection frame; the utility model relates to a rationally, can effectively handle waste water, avoid polluted environment's advantage.

Description

Equipment for separating and recycling waste oil-based slurry

Technical Field

The utility model relates to an oil base mud retrieves technical field, more specifically relates to an equipment technical field that is used for separation of waste oil base mud to retrieve.

Background

Oil-based muds, also known as oil-based drilling fluids, consist essentially of oil, water, organoclays and oil-soluble chemical treatments. The oil-based mud is resistant to high temperature and salt calcium erosion, is beneficial to well wall stability, has good lubricity and little damage to an oil-gas layer, and is widely applied to various drilling platforms, and the base oil in the oil-based mud is diesel oil.

At present, the diesel oil-based oil-containing drilling cuttings and waste slurry treatment technology mainly comprise a microbial metabolic degradation method, a pyrolysis method, an incineration method, a chemical cleaning method and the like. The microbial metabolism degradation method utilizes the metabolism of microorganisms to decompose low-oil-content solid oil substances, but the metabolism period of the microorganisms is usually longer, meanwhile, the aromatic hydrocarbon content in diesel oil is higher, the microbial metabolism has obvious biotoxicity and obvious inhibition effect on the metabolism of the microorganisms, and the microbial metabolism is to decompose the metabolism of the diesel oil substances and is not beneficial to the recycling of the diesel oil substances. The pyrolysis method utilizes anaerobic pyrolysis separation, and has large equipment investment and large energy consumption. The incineration method realizes the removal of oil-based mud pollution by combustion of the oil-based mud in combination with fuel, but has high treatment cost and may bring secondary pollution. The chemical cleaning method utilizes emulsification, dissolution and separation, demulsification and oil phase recovery, but the treatment process needs solvent water consumption, and oily sewage is generated to form secondary pollution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the technical problem, the utility model provides an equipment for waste oil base mud separation is retrieved.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides an equipment for waste oil base mud separation is retrieved, includes fatlute pipeline, sets up the oil sludge pump on fatlute pipeline, with fatlute concentrated jar of fatlute pipeline intercommunication, the sedimentation tank of being connected with fatlute concentrated jar, sedimentation tank upper portion waste water has come to connect filter one and filter two that the flow can be adjusted in proper order through the waste water treatment pipeline, the oil base mud of sedimentation tank lower part deposit passes through the conveyer and enters into horizontal screw centrifuge, and horizontal screw centrifuge includes liquid outlet and solid export, and liquid outlet has been connected with basic oil buffer tank through pipeline, the solid export below is provided with the mud conveyer belt, the discharge gate of mud conveyer belt is provided with the collection frame.

Furthermore, the horizontal spiral centrifuge comprises a rack, a shell arranged on the rack, a rotary drum arranged in the shell, a pushing spiral arranged in the rotary drum, and two motors driving the rotary drum and the pushing spiral to rotate in a differential mode, wherein a feeding hole for conveying materials into the pushing spiral is formed in one end of the shell.

Further, the oil sludge concentration tank comprises a heating tank body and a liquid receiving tank arranged on one side of the heating tank body;

the top of the heating tank body is provided with a feed inlet and an air outlet, the bottom of the heating tank body is provided with a heating cavity and a discharge outlet, and the air outlet is connected with a first condenser;

a liquid outlet is formed in the bottom of the liquid receiving tank, a liquid inlet is formed in the top of the liquid receiving tank, and the liquid inlet is connected with a second condenser;

the first condenser is communicated with the second condenser through a pipeline A, a gas-liquid separator is arranged on the pipeline A, and the bottom of the gas-liquid separator is communicated with the heating tank body through a return pipe.

Further, the filter unit comprises a main shell, a wastewater inlet and a wastewater outlet which are communicated with the main shell, and a flow adjusting mechanism and a composite filtering mechanism are arranged inside the main shell.

Further, flow control mechanism includes the flow control plate that dead lever, movable rod, telescopic machanism and polylith from the top set up, does not have a flow control plate both ends to articulate respectively on dead lever and movable rod, both ends are fixed in the main casing about the dead lever, and both ends are the free end about the movable rod, and telescopic machanism is telescopic cylinder, telescopic cylinder body articulates at main casing internal bottom, and the telescopic link articulates on lower floor flow control plate.

Furthermore, the composite filtering mechanism comprises a plurality of activated carbon filtering plates arranged from top to bottom, and two sides of each activated carbon filtering plate are connected in a staggered manner to form a continuous S-shaped filtering assembly.

Furthermore, the second filter is an activated carbon filter.

The beneficial effects of the utility model are as follows:

1. the utility model discloses simple structure, reasonable in design, the during operation, waste oil base mud enters into fatlute concentration tank through the oil sludge pump and concentrates, and oil base mud after the concentration enters into the sedimentation tank and subsides, subsides back upper portion waste water and gets rid of after handling through filter one and filter two, and the oil base mud of subsiding back lower part enters into horizontal screw centrifuge, carries out the separation of base oil and mud, has environmental protection, separation efficient advantage.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic diagram of the construction of a sludge thickening tank;

FIG. 3 is a schematic structural diagram of a first filter;

FIG. 4 is a schematic structural view of a horizontal screw centrifuge;

FIG. 5 is a schematic view of a state structure of the flow regulating mechanism;

FIG. 6 is a schematic view of another state of the flow regulating mechanism;

reference numerals: the system comprises a 1-oil sludge pump, a 2-oil sludge conveying pipeline, a 3-oil sludge concentration tank, a 3-1-heating cavity, a 3-2-heating tank body, a 3-3-feeding port, a 3-4-first condenser, a 3-5-gas-liquid separator, a 3-6-return pipe, a 3-7-second condenser, a 3-8-liquid receiving tank, a 3-9-discharging port, a 4-filter I, a 4-1-wastewater inlet, a 4-2-flow regulating mechanism, a 4-2.1-telescopic mechanism, a 4-2.2-movable rod, a 4-2.3-fixed rod, a 4-2.4-flow regulating plate, a 4-3-composite filtering mechanism, a 4-4-main shell, a 4-5-wastewater outlet, a 5-filter II, a 6-horizontal spiral centrifuge, a 6-1-rack, a 6-2-pushing screw, a 6-3-rotary drum, a 6-4-shell, a 7-base oil buffer tank, an 8-slurry conveying belt, a 9-collecting frame and a 10-settling tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 6, the present embodiment provides an apparatus for separating and recycling waste oil-based slurry, which includes a sludge conveying pipeline 2, a sludge pump 1 disposed on the sludge conveying pipeline 2, a sludge concentrating tank 3 communicated with the sludge conveying pipeline 2, and a sedimentation tank 10 connected with the sludge concentrating tank 3, wherein a first filter 4 and a second filter 5, which can adjust flow rate, are sequentially connected to waste water at an upper portion of the sedimentation tank 10 through a waste water treatment pipeline, oil-based slurry precipitated at a lower portion of the sedimentation tank 10 enters a horizontal screw centrifuge 6 through a conveyor, the horizontal screw centrifuge 6 includes a liquid outlet and a solid outlet, the liquid outlet is connected with a base oil buffer tank 7 through a conveying pipeline, a slurry conveying belt 8 is disposed below the solid outlet, and a collection frame 9 is disposed at a discharge port of the slurry conveying belt 8.

During operation, the waste oil-based mud enters the oil sludge concentration tank through the oil sludge pump for concentration, the concentrated oil-based mud enters the sedimentation tank for sedimentation, the upper wastewater after sedimentation is treated by the first filter and the second filter and then discharged, and the oil-based mud at the lower part after sedimentation enters the horizontal spiral centrifuge for separation of the base oil and the mud, so that the oil-based mud separation device has the advantages of environmental protection and high separation efficiency.

Example 2

The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:

the horizontal spiral centrifuge 6 comprises a frame 6-1, a shell 6-4 arranged on the frame 6-1, a rotary drum 6-3 arranged in the shell 6-4, a pushing spiral 6-2 arranged in the rotary drum 6-3, and two motors driving the rotary drum 6-3 and the pushing spiral 6-2 to rotate in a differential mode, wherein a feeding hole for conveying materials into the pushing spiral 6-2 is formed in one end of the shell 6-4.

The oil sludge concentration tank 3 comprises a heating tank body 3-2 and a liquid receiving tank 3-8 arranged on one side of the heating tank body 3-2;

a feed inlet 3-3 and an air outlet are arranged at the top of the heating tank body 3-2, a heating chamber 3-1 and a discharge outlet 3-9 are arranged at the bottom of the heating tank body 3-2, and the air outlet is connected with a first condenser 3-4;

a liquid outlet is formed in the bottom of the liquid receiving tank 3-8, a liquid inlet is formed in the top of the liquid receiving tank 3-8, and the liquid inlet is connected with a second condenser 3-7;

the first condenser 3-4 is communicated with the second condenser 3-7 through a pipeline A, a gas-liquid separator 3-5 is arranged on the pipeline A, and the bottom of the gas-liquid separator 3-5 is communicated with the heating tank body 3-2 through a return pipe 3-6.

The first filter 4 comprises a main shell 4-4, a waste water inlet 4-1 and a waste water outlet 4-5 which are communicated with the main shell 4-4, and a flow regulating mechanism 4-2 and a composite filtering mechanism 4-3 are arranged inside the main shell 4-4.

The flow regulating mechanism 4-2 comprises a fixed rod 4-2.3, a movable rod 4-2.2, a telescopic mechanism 4-2.1 and a plurality of flow regulating plates 4-2.4 arranged from top to bottom, two ends of the flow regulating plate 4-2.4 are respectively hinged on the fixed rod 4-2.3 and the movable rod 4-2.2, the upper end and the lower end of the fixed rod 4-2.3 are fixed in the main shell 4-4, the upper end and the lower end of the movable rod 4-2.2 are free ends, the telescopic mechanism 4-2.1 is a telescopic cylinder, a cylinder body of the telescopic cylinder is hinged at the inner bottom of the main shell 4-4, and the telescopic rod is hinged on the flow regulating plate 4-2.4 at the lowest layer.

The composite filtering mechanism 4-3 comprises a plurality of activated carbon filtering plates arranged from top to bottom, and two sides of the activated carbon filtering plates are connected in a staggered manner to form a continuous S-shaped filtering component.

The second filter 5 is an activated carbon filter.

When the horizontal spiral centrifuge works, the rotary drum and the pushing spiral rotate at a high speed in the same direction at a certain differential speed, materials are continuously introduced into the inner cylinder of the conveying spiral through the feeding pipe, the materials are accelerated to enter the rotary drum, and heavy solids are accumulated on the inner wall of the rotary drum to generate a residue layer under the effect of a centripetal force field. The conveying screw continuously pushes the accumulated solid to the conical end of the rotary drum and discharges the solid through the solid discharge port. The lighter liquid forms an inner liquid ring, continuously overflows from the rotary drum through the large-end overflow port of the rotary drum, and is discharged through the liquid outlet. Has strong practicability.

Claims

1. The utility model provides an equipment for waste oil base mud separation is retrieved, its characterized in that, including fatlute pipeline (2), set up fatlute pump (1) on fatlute pipeline (2), with fatlute concentrated jar (3) of fatlute pipeline (2) intercommunication, sedimentation tank (10) of being connected with fatlute concentrated jar (3), sedimentation tank (10) upper portion waste water comes to connect filter one (4) and filter two (5) that the flow can be adjusted through the waste water treatment pipeline in proper order, the oil base mud that sedimentation tank (10) lower part was depositd enters into horizontal screw centrifuge (6) through the conveyer, and horizontal screw centrifuge (6) include liquid outlet and solid export, and liquid outlet is connected with basic oil buffer tank (7) through pipeline, the solid export below is provided with slurry conveyor belt (8), the discharge gate of slurry conveyor belt (8) is provided with collection frame (9).

2. The equipment for separating and recycling the waste oil-based slurry as claimed in claim 1, wherein the horizontal screw centrifuge (6) comprises a frame (6-1), a shell (6-4) arranged on the frame (6-1), a rotary drum (6-3) arranged in the shell (6-4), a pushing screw (6-2) arranged in the rotary drum (6-3), and two motors for driving the rotary drum (6-3) and the pushing screw (6-2) to rotate in a differential manner, respectively, wherein one end of the shell (6-4) is provided with a feeding port for conveying materials into the pushing screw (6-2).

3. The apparatus for separating and recovering waste oil-based mud according to claim 1, wherein the sludge concentration tank (3) comprises a heating tank body (3-2), and a liquid receiving tank (3-8) arranged at one side of the heating tank body (3-2);

a feed inlet (3-3) and an air outlet are formed in the top of the heating tank body (3-2), a heating cavity (3-1) and a discharge outlet (3-9) are formed in the bottom of the heating tank body (3-2), and the air outlet is connected with a first condenser (3-4);

a liquid outlet is formed in the bottom of the liquid receiving tank (3-8), a liquid inlet is formed in the top of the liquid receiving tank (3-8), and the liquid inlet is connected with a second condenser (3-7);

the first condenser (3-4) is communicated with the second condenser (3-7) through a pipeline A, a gas-liquid separator (3-5) is arranged on the pipeline A, and the bottom of the gas-liquid separator (3-5) is communicated with the heating tank body (3-2) through a return pipe (3-6).

4. The apparatus for separating and recycling waste oil-based mud according to claim 1, wherein the filter (4) comprises a main housing (4-4), a waste water inlet (4-1) and a waste water outlet (4-5) which are communicated with the main housing (4-4), and the main housing (4-4) is internally provided with a flow regulating mechanism (4-2) and a composite filtering mechanism (4-3).

5. The device for separating and recycling waste oil-based slurry according to claim 4, wherein the flow regulating mechanism (4-2) comprises a fixed rod (4-2.3), a movable rod (4-2.2), a telescopic mechanism (4-2.1) and a plurality of flow regulating plates (4-2.2) arranged from top to bottom, two ends of each flow regulating plate (4-2.2) are respectively hinged on the fixed rod (4-2.3) and the movable rod (4-2.2), the upper and lower ends of the fixed rod (4-2.3) are fixed in the main casing (4-4), the upper and lower ends of the movable rod (4-2.2) are free ends, the telescopic mechanism (4-2.1) is a telescopic cylinder, the cylinder body of the telescopic cylinder is hinged on the bottom of the main casing (4-4), and the telescopic rod is hinged on the flow regulating plate (4-2.2) at the lowest layer.

6. An apparatus for the separation and recovery of used oil based mud according to claim 4, wherein said composite filter means (4-3) comprises a plurality of activated carbon filter plates arranged from top to bottom, said activated carbon filter plates being connected in staggered relationship on opposite sides to form a continuous S-shaped filter assembly.

7. The apparatus for separating and recycling waste oil-based mud according to claim 1, wherein the second filter (5) is an activated carbon filter.