CN218421655U

CN218421655U - Vacuum kneading device for production of plugging agent

Info

Publication number: CN218421655U
Application number: CN202222215160.0U
Authority: CN
Inventors: 杨震; 王红; 骆学军; 薛鲁波
Original assignee: Puyang Wanliang Petroleum Technology Development Co ltd
Current assignee: Puyang Wanliang Petroleum Technology Development Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-02-03
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a vacuum kneading device for production of plugging agent, which comprises a kneading kettle, a kettle cover detachably arranged on the kneading kettle, and a jacket arranged outside the kneading kettle; a pair of stirring blades which are matched with each other is arranged in the kneading kettle; a medium inlet pipe and a medium outlet pipe are arranged on the jacket; the kettle cover is sequentially provided with an air inlet pipe, a vacuum-pumping pipe, a vacuum gauge, a pressure gauge and a thermometer; a first dustproof device, a lower filter screen and an upper filter screen are sequentially arranged in the vacuum-pumping pipe from bottom to top; the upper end of the vacuum tube is in a closed state, a communicating tube communicated with the interior of the vacuum tube is arranged on the side wall of the vacuum tube above the upper filter screen, and the other end of the communicating tube is communicated with the inlet end of the vacuum pump.

Description

Vacuum kneading device for production of plugging agent

Technical Field

The utility model belongs to the technical field of blocking agent production facility, concretely relates to device is mediated with vacuum in blocking agent production.

Background

The blocking agent is usually applied to water-based drilling fluid, and during production of the blocking agent, polyacrylamide colloidal particles are required to be put into a kneading machine, and then 2-acrylamide-2-methylpropanesulfonic acid, acryloyloxyethyl trimethyl ammonium chloride, a high-viscoelasticity modifier, silicon dioxide fibers and the like are sequentially put into the kneading machine for kneading reaction, so that a finished blocking agent product is finally obtained. In the above raw materials, for example, the particle size of polyacrylamide gel particles is about 2mm, the diameter of silica fiber is generally 8um-12um, and the length is 2mm-6mm; 2-acrylamide-2-methylpropanesulfonic acid is powdery crystal, so when the material is placed in a vacuum kneading device and is pumped to vacuum, the material is easily brought into a vacuum pipeline by air flow due to small particle size, long-time accumulation can cause pipeline blockage, the vacuum pumping effect is influenced, and the existing vacuum pipeline is not easy to clean once the blockage occurs. Therefore, it is highly desirable to design a vacuum kneading device for producing a plugging agent.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model discloses following technical scheme will be adopted:

a vacuum kneading device for production of a plugging agent comprises a kneading kettle, a kettle cover detachably arranged on the kneading kettle, and a jacket arranged outside the kneading kettle; a pair of stirring blades which are matched with each other is arranged in the kneading kettle; a medium inlet pipe and a medium outlet pipe are arranged on the jacket; the kettle cover is sequentially provided with an air inlet pipe, a vacuum pumping pipe, a vacuum gauge, a pressure gauge and a thermometer; a first dustproof device, a lower filter screen and an upper filter screen are sequentially arranged in the vacuum-pumping pipe from bottom to top; the upper end of the vacuum tube is in a closed state, a communicating tube communicated with the interior of the vacuum tube is arranged on the side wall of the vacuum tube above the upper filter screen, and the other end of the communicating tube is communicated with the inlet end of the vacuum pump.

Furthermore, the first dustproof device is a plurality of layers of baffling baffles which are alternately arranged on two sides of the vacuum-pumping tube; the multiple layers of baffling baffles are arranged in a staggered manner; the baffling baffle is fixed on the inner wall of the vacuumizing tube and gradually inclines downwards from outside to inside; a gap is arranged between the free end of the baffle plate and the inner wall of the vacuum tube, so that an S-shaped airflow channel is formed in the vacuum tube.

Furthermore, the lower filter screen is fixed on the inner wall of the vacuumizing tube; a clamping ring is arranged at the edge of the upper filter screen, and an annular groove for accommodating the clamping ring is formed in the inner wall of the vacuumizing pipe; go up the upper surface of filter screen and be provided with the dwang, the dwang upwards extends, its with rotate between the top of evacuation pipe and be connected between its upper end and the output shaft that sets up the motor outside the evacuation pipe.

Furthermore, the vacuum tube consists of two parts, including a lower pipe and an upper pipe which are connected through a flange; the first dustproof device and the lower filter screen are arranged in the lower pipe, and the upper filter screen is arranged in the upper pipe.

Furthermore, a fixed block is arranged in the upper pipe and below the upper filter screen, the fixed block is fixed on the inner wall of the upper pipe through a support rod, a vertical threaded rod penetrates through the inside of the fixed block, and the threaded rod is in threaded connection with the fixed block; the upper end of threaded rod is provided with the brush, and this brush is used for the clearance go up the lower surface of filter screen.

Further, a filter is arranged at the outlet end of the vacuum pump, and the filter is an activated carbon filter.

Further, the lower part of the jacket is provided with an emptying pipe.

The utility model has the advantages that: the utility model discloses a triple airflow treatment device of first dust keeper, lower filter screen and upper filter screen of evacuation pipe, when utilizing the vacuum pump to the kneading cauldron in evacuation, the particle that is taken away by the air current clamp can be filtered by triple airflow treatment device in proper order, consequently can greatly reduced the probability that the vacuum pipe blockked up, and the triple treatment device of the utility model its treatment effect to the particle in the air current strengthens in proper order, consequently can effectively clear away the particle in the air current finally; the utility model discloses a vacuum-pumping pipe is composed of an upper pipe and a lower pipe which can be disassembled, after long-term use, the upper pipe and the lower pipe can be disassembled directly, and the upper filter screen and the lower filter screen can be cleaned, so the later maintenance is more convenient; finally the utility model discloses be provided with the brush, when last filter screen rotated, the material of adhesion was effectively clear away on the lower surface of last filter screen to the brush, and was provided with the threaded rod, used for a long time when the brush has wearing and tearing and can't contact to go up the filter screen, can rotate the threaded rod for brush rebound once more with last filter screen lower surface butt, consequently prolonged the life of brush greatly.

Drawings

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

fig. 2 is a schematic structural view of the evacuation tube of the present invention;

reference numerals are as follows: 1. kneading the kettle; 2. a jacket; 3. a kettle cover; 4. vacuumizing a tube; 5. a communicating pipe; 6. an air inlet pipe; 7. a vacuum pump; 8. a filter; 9. an upper pipe; 10. a lower pipe; 11. a motor; 12. rotating the rod; 13. a baffle plate; 14. a lower filter screen; 15. a filter screen is arranged; 16. a brush; 17. a snap ring; 18. a fixed block; 19. a threaded rod; 20. a sleeve.

Detailed Description

The technical solutions of the present invention will be further described below with reference to the accompanying drawings and examples, so that those skilled in the art can more clearly understand the contents of the technical solutions.

Example 1:

as shown in the attached drawings 1-2, the vacuum kneading device for the production of the plugging agent of the utility model comprises a kneading kettle 1, a kettle cover 3 detachably arranged on the kneading kettle 1, and a jacket 2 arranged outside the kneading kettle 1; the kettle cover in this embodiment can adopt forms such as buckle or flange to be connected between the cauldron with mediating, during the feeding, dismantles the kettle cover, will produce in the required raw materials of blocking agent adds the cauldron of mediating one by one, after the reaction, directly pull down the kettle cover and carry out the ejection of compact. In this embodiment, other feeding and discharging methods in the prior art can be used between the kneading kettle and the kettle cover, and the feeding and discharging method is not modified in this embodiment, and thus will not be described in detail. A pair of stirring blades which are matched with each other is arranged in the kneading kettle 1; the stirring paddle in this embodiment may be any paddle of a vacuum kneader in the prior art, and the driving motor of the stirring paddle is disposed outside the kneading kettle, and the connection manner between the stirring paddle and the driving motor is also the connection manner in the prior art, which is not modified and therefore not described in detail. A medium inlet pipe and a medium outlet pipe are arranged on the jacket 2; the lower part of the jacket 2 is provided with an emptying pipe. The temperature of the heat medium is selected according to the formula and the process adopted during the production of the plugging agent in the jacket, and in addition, when the temperature reduction treatment is needed after the reaction is finished, the heat medium can be directly discharged from the emptying pipe, and the cold medium is introduced again to realize the rapid temperature reduction.

The kettle cover 3 is sequentially provided with an air inlet pipe 6, a vacuum-pumping pipe 4, a vacuum gauge, a pressure gauge and a thermometer; the air inlet pipe is arranged to facilitate breaking of a vacuum environment in the kneading kettle after the reaction is finished, a valve is arranged on the air inlet pipe, and the pipeline setting valve is in a conventional setting, so that the type of the valve is not described in detail. A first dustproof device, a lower filter screen 14 and an upper filter screen 15 are sequentially arranged in the vacuum-pumping pipe 4 from bottom to top; the upper end of the vacuum tube 4 is in a closed state, a communicating tube 5 communicated with the inside of the vacuum tube 4 is arranged on the side wall of the vacuum tube 4 above the upper filter screen 15, and the other end of the communicating tube 5 is communicated with the inlet end of a vacuum pump 7. The communicating pipe is also provided with a control valve. The vacuum tube is internally provided with a triple airflow processing device in sequence.

The first dustproof device is a plurality of layers of baffling baffles 13 which are alternately arranged on two sides of the vacuum tube 4; the multilayer baffling baffles 13 are arranged in a staggered manner; the baffling baffle 13 is fixed on the inner wall of the vacuum tube 4 and gradually inclines downwards from outside to inside; a gap is arranged between the free end of the baffle plate 13 and the inner wall of the vacuum tube 4, so that an S-shaped airflow channel is formed in the vacuum tube 4. First dust keeper in this embodiment is multilayer baffling baffle, when the air current rebound, can be along with removing and strike baffling baffle to make the particle that smugglies secretly in the air current subside on baffling baffle, and because baffling baffle' S setting, make the air current be the flow path of S-shaped, thereby through colliding many times to carry out preliminary clearance to the air current.

The lower filter screen 14 is fixed on the inner wall of the vacuumizing tube 4; the lower filter screen is directly fixed on the inner wall of the vacuumizing tube to filter the air flow again. A snap ring 17 is arranged at the edge of the upper filter screen 15, and an annular groove for accommodating the snap ring 17 is formed in the inner wall of the vacuum tube 4; go up the upper surface of filter screen 15 and be provided with dwang 12, dwang 12 upwards extends, its with rotate between the top of evacuation pipe 4 and be connected between its upper end and the output shaft of the motor 11 of setting outside evacuation pipe 4. The last filter screen of here is the filter screen of rotation form, and it is rotatory to drive the filter screen by the motor, and when the filter screen was in the rotation state, its filter effect strengthened greatly for its filter effect of the filter screen of static setting, and dust etc. smugglied secretly in the air current is directly intercepted at the lower surface of last filter screen, greatly reduced its probability that enters into in the communicating pipe, consequently also greatly reduced of the probability of communicating pipe jam.

Example 2:

the present example differs from example 1 in that: the vacuum tube 4 in this embodiment is composed of two parts, including a lower tube 10 and an upper tube 9 connected by a flange; the first dust-proof device and the lower filter screen 14 are arranged in the lower pipe 10, and the upper filter screen 15 is arranged in the upper pipe 9. Tear into two parts with the evacuation pipe in this embodiment, connect through the ring flange between the two, consequently when the filter screen jam has appeared in long-term use, can directly take apart the evacuation pipe, then directly clear up last filter screen and lower filter screen, prevent that its mesh from appearing blockking up.

In the embodiment, a fixing block 18 is arranged in the upper pipe 9 and below the upper filter screen 15, the fixing block 18 is fixed on the inner wall of the upper pipe 9 through a support rod, a vertical threaded rod 19 penetrates through the fixing block 18, and the threaded rod 19 is in threaded connection with the fixing block 18; the upper end of the threaded rod 19 is provided with a brush 16, and the brush 16 is used for cleaning the lower surface of the upper filter screen 15. The brush is additionally arranged at the position, when the upper filter screen rotates, the brush is in a static state, so that dust adhered to the lower surface of the upper filter screen can be cleaned by the brush, and the upper filter screen is prevented from being blocked. And the threaded rod is arranged at the position, when the brush is worn, the upper pipe can be detached, and the threaded rod is rotated to enable the brush to move upwards, so that the brush is abutted against the upper filter screen again, and the service life of the brush is prolonged. The brush central part department can set up downwardly extending's sleeve pipe here, and the brush utilizes this sleeve pipe suit at the tip of threaded rod, sets up the screw thread through-hole on the sleeve pipe, fixes through the bolt between this sleeve pipe and the threaded rod, so set up for the convenience of changing the brush.

A filter 8 is arranged at the outlet end of the vacuum pump 7, and the filter 8 is an activated carbon filter. The filter is additionally arranged, because the reaction temperature is about 80-90 ℃ when the plugging agent is produced, the toxic gas is easily generated at the moment, and in order to prevent the generation of the toxic gas in the production reaction process, when the air flow is pumped out by the vacuum pump, the air flow is firstly filtered by the activated carbon and then discharged into the environment, so that the working environment is prevented from being influenced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A vacuum kneading device for production of a blocking agent comprises a kneading kettle (1), a kettle cover (3) detachably arranged on the kneading kettle (1), and a jacket (2) arranged outside the kneading kettle (1); a pair of stirring blades which are matched with each other is arranged in the kneading kettle (1); a medium inlet pipe and a medium outlet pipe are arranged on the jacket (2); an air inlet pipe (6), a vacuum-pumping pipe (4), a vacuum meter, a pressure gauge and a thermometer are sequentially arranged on the kettle cover (3); the method is characterized in that: a first dustproof device, a lower filter screen (14) and an upper filter screen (15) are sequentially arranged in the vacuum-pumping pipe (4) from bottom to top; the upper end of the vacuumizing pipe (4) is in a closed state, a communicating pipe (5) communicated with the inside of the vacuumizing pipe (4) is arranged on the side wall, located above the upper filter screen (15), of the vacuumizing pipe (4), and the other end of the communicating pipe (5) is communicated with the inlet end of the vacuum pump (7).

2. The vacuum kneading apparatus for producing a blocking agent according to claim 1, wherein: the first dustproof device is a plurality of layers of baffling baffles (13) which are alternately arranged on two sides of the vacuum-pumping tube (4); the multiple layers of baffling baffles (13) are arranged in a staggered way; the baffling baffle (13) is fixed on the inner wall of the vacuumizing tube (4) and gradually inclines downwards from outside to inside; a gap is arranged between the free end of the baffle plate (13) and the inner wall of the vacuum tube (4), so that an S-shaped airflow channel is formed in the vacuum tube (4).

3. The vacuum kneading apparatus for plugging agent production according to claim 2, wherein: the lower filter screen (14) is fixed on the inner wall of the vacuumizing pipe (4); a clamping ring (17) is arranged at the edge of the upper filter screen (15), and an annular groove for accommodating the clamping ring (17) is formed in the inner wall of the vacuumizing pipe (4); go up the upper surface of filter screen (15) and be provided with dwang (12), dwang (12) upwards extend, its with rotate between the top of evacuation pipe (4) and be connected between its upper end and the output shaft that sets up motor (11) outside evacuation pipe (4).

4. A vacuum kneading apparatus for the production of a blocking agent according to claim 3, wherein: the vacuum-pumping pipe (4) consists of two parts, including a lower pipe (10) and an upper pipe (9) which are connected through a flange; the first dustproof device and the lower filter screen (14) are arranged in the lower pipe (10), and the upper filter screen (15) is arranged in the upper pipe (9).

5. The vacuum kneading apparatus for plugging agent production according to claim 4, wherein: a fixed block (18) is arranged in the upper pipe (9) and below the upper filter screen (15), the fixed block (18) is fixed on the inner wall of the upper pipe (9) through a support rod, a vertical threaded rod (19) penetrates through the fixed block (18), and the threaded rod (19) is in threaded connection with the fixed block (18); the upper end of the threaded rod (19) is provided with a brush (16), and the brush (16) is used for cleaning the lower surface of the upper filter screen (15).

6. The vacuum kneading apparatus for plugging agent production according to claim 1, wherein: and a filter (8) is arranged at the outlet end of the vacuum pump (7), and the filter (8) is an activated carbon filter.

7. The vacuum kneading apparatus for producing a blocking agent according to claim 1, wherein: the lower part of the jacket (2) is provided with an emptying pipe.