CN217698891U

CN217698891U - Feeding device of double-helix conical mixer

Info

Publication number: CN217698891U
Application number: CN202221991013.6U
Authority: CN
Inventors: 周永
Original assignee: Tianjin Dagang Oilfield Haicheng Mud Technical Service Co ltd
Current assignee: Tianjin Dagang Oilfield Haicheng Mud Technical Service Co ltd
Priority date: 2022-07-31
Filing date: 2022-07-31
Publication date: 2022-11-01
Anticipated expiration: 2032-07-31

Abstract

The utility model belongs to the technical field of the drilling fluid, especially, feeding device of double helix conical mixer, be equipped with the compounding casing of taking the valve discharge gate and install mixing hopper and two screw agitators on the compounding casing including four landing legs, inboard diapire. This feeding device of double helix conical mixer, inner wall through fighting at the compounding, the surface of fixed column, the surface of connecting plate, the inner wall and the open-ended inner wall of compounding casing set up fluorocarbon coating respectively, be convenient for prevent that drilling fluid raw and other materials from fighting at the compounding, the fixed column, the connecting plate, compounding casing and opening on, thereby make drilling fluid raw and other materials can be along the compounding fill, the fixed column, connecting plate and compounding casing surface follow the opening landing in the compounding casing, avoid drilling fluid raw and other materials to splash out.

Description

Feeding device of double-helix conical mixer

Technical Field

The utility model relates to a drilling fluid technical field especially relates to a double helix conical mixer's feed arrangement.

Background

The drilling fluid used when the drilling depth exceeds a certain depth is prepared by adopting a dynamic mixing and adjusting method, namely, the prepared base slurry (heavy drilling fluid), seawater and additives are dynamically mixed at any time according to the drilling requirement, and the density of the drilling fluid is accurately adjusted. The high-efficiency mixer is an important device for realizing the method, and the mixing efficiency of the high-efficiency mixer directly influences the uniformity of the well killing fluid, so that the reliability of dynamic well killing is influenced.

For example, the multi-phase system drilling fluid mixer (publication number: CN 108176264A) disclosed in chinese patent document adopts a flow-dividing structure at the additive inlet, which can divide the additive to the mixer wall, so that the additive is merged into the seawater and the base slurry flowing out at high speed, and mixed in the vortex in the tank, thereby preventing the additive from flowing through the center of the mixer directly, reducing the mixing time, and making the three-phase mixing more uniform. Utilize high pressure to extrude the raw and other materials of drilling fluid for it mixes in under-deck swirl, though can solve the mixing problem of deep water department, nevertheless when the blender to on land, the high pressure can solve the mixing problem, but the equipment that the high pressure produced to and the potential safety hazard still need be considered, the pressure that needs is big more, potential safety hazard is big more, especially mixed material all is one-way spiral down-mixing, the degree of consistency that raw and other materials mixed relies on the stroke length of spiral completely to decide.

SUMMERY OF THE UTILITY MODEL

Based on above-mentioned technical problem at present, the utility model provides a double helix conical mixer's feed arrangement.

The utility model provides a feeding device of double helix conical mixer, be equipped with the compounding casing of taking the valve discharge gate and install including four landing legs, inboard diapire the mixing hopper and two screw agitators of compounding casing upper surface, four the one end of landing leg with the fixed surface of compounding casing installs, the feed inlet has been seted up to the upper surface of compounding casing, the lower surface of mixing hopper with the fixed surface of feed inlet is connected, the inner wall of mixing hopper is provided with the fixed column, the lower surface evenly distributed of fixed column has four cross sections to be triangular connecting plate, the one end of connecting plate with the inner wall fixed connection of feed inlet, the lower surface of connecting plate is provided with rotary mechanism, rotary mechanism includes the carousel, the opening has been seted up to the surface of carousel, through the drive the carousel rotates the drive drilling fluid raw and other materials in the mixing hopper follow the opening falls into the compounding casing.

Preferably, the outer surface of the mixing hopper is provided with an external thread, and the external surface of the external thread is in threaded connection with a sealing cover.

Through above-mentioned technical scheme, the internal thread of seting up in the sealed lid is fought with the compounding and is gone up external screw thread threaded connection to make sealed lid fight to the compounding and seal, prevent in the in-process dust of mixing stirring or other debris entering compounding casing, be convenient for take off simultaneously.

Preferably, the outer surface of the fixed column and the inner wall of the mixing hopper are respectively provided with two slots, and the inner walls of the slots are slidably clamped with baffle plates.

Through above-mentioned technical scheme, the opening and other positions on the baffle will be separated from the carousel, are convenient for let drilling fluid raw and other materials mix in the mixing hopper earlier, prevent to pour drilling fluid raw and other materials into in proper order and cause the layering in the compounding casing for the uneven problem of drilling fluid raw and other materials mixture takes place.

Preferably, fluorocarbon coatings are uniformly distributed on the inner wall of the mixing hopper, the outer surface of the fixing column, the outer surface of the connecting plate, the inner wall of the mixing shell and the inner wall of the opening respectively, and the shape of the inner wall of the opening is an inclined plane.

Through above-mentioned technical scheme, fluorocarbon coating has unique inadhesion and low friction nature, can prevent to adhere to on compounding fill, fixed column, connecting plate, compounding casing and opening for drilling fluid raw and other materials can fall into completely in the compounding casing, and connecting plate and open-ended inclined plane are convenient for let drilling fluid raw and other materials landing.

Preferably, the rotating mechanism further comprises an installation shell, the upper surface of the installation shell is installed on the lower surface of the rotary table through a bearing, the upper surface of the rotary table is installed on the lower surface of the fixed column through another bearing, a double-output-shaft motor is fixedly installed on the inner wall of the installation shell, and one output shaft of the double-output-shaft motor penetrates through the installation shell to be fixedly sleeved with the lower surface of the rotary table.

Through above-mentioned technical scheme, the rotation of two output shaft motor output shafts drives the carousel and rotates, and the rotation of carousel drives the opening and rotates to make drilling fluid raw and other materials fall into the compounding casing through the opening.

Preferably, the other output shaft of the double-output-shaft motor penetrates through the mounting shell and is fixedly sleeved with a conical stirring shaft, and the outer surface of the conical stirring shaft is fixedly sleeved with a spiral sheet attached to the outer surface of the conical stirring shaft.

Through above-mentioned technical scheme, the rotation of another output shaft of two output shaft motors drives the rotation of toper (mixing) shaft, and the rotation of toper (mixing) shaft drives the flight and rotates, and the mutual cooperation of flight and two screw agitators stirs the mixing to the drilling fluid raw and other materials in the compounding casing.

The utility model provides a beneficial effect does:

1. through the inner wall at the compounding fill, the surface of fixed column, the surface of connecting plate, the inner wall and the open-ended inner wall of compounding casing set up fluorocarbon coating respectively, be convenient for prevent that drilling fluid raw and other materials from being on the compounding fill, the fixed column, the connecting plate, compounding casing and opening to make drilling fluid raw and other materials can be along the compounding fill, the fixed column, in connecting plate and the compounding casing surface follow opening landing to the compounding casing, avoid drilling fluid raw and other materials to splash out.

2. Through setting up rotary mechanism, be convenient for drilling fluid raw and other materials in the mixing hopper fall into in the compounding casing from the opening, be convenient for carry out comprehensive even stirring to the drilling fluid raw and other materials in the compounding casing simultaneously, the rotation of one of them output shaft of two play axle motors drives the carousel and rotates, the rotation of carousel drives the opening and rotates, when the opening rotated the compounding of compounding fill region, drilling fluid raw and other materials in the compounding hopper got into the compounding casing from the feed inlet through the opening, the rotation of another output shaft of two play axle motors drives the toper (mixing) shaft and rotates, the rotation of toper (mixing) shaft drives the flight rotation, the flight carries out the homogeneous mixing with mutually supporting of two screw stirrers to the drilling fluid raw and other materials in the compounding casing, reach the effect that improves mixing speed, can be discharged toward the outside while moving inwards reinforced, specifically the direction of spiral stirring is upwards, drilling fluid raw and other materials are leading-in downwards, the spiral upwards rotates the stirring this moment, realize the mixing of dashing formula, as long as drilling fluid raw and other materials intensive mixing, can be from the discharge gate of the inboard diapire department of compounding casing by oneself, make its effect that realizes its line mixing.

Drawings

FIG. 1 is a schematic view of a feeding device of a twin-screw conical mixer according to the present invention;

FIG. 2 is a perspective view of a mixing hopper of a feeding device of a double helix conical mixer according to the present invention;

FIG. 3 is a perspective view of the mounting housing structure of the feeding device of the twin-screw conical mixer according to the present invention;

fig. 4 is a perspective view of a double-output shaft motor structure of a feeding device of a double-helix conical mixer provided by the utility model.

In the figure: 1. a support leg; 2. a mixing shell; 3. a mixing hopper; 4. a screw-type stirrer; 5. a feed inlet; 6. fixing a column; 7. a connecting plate; 8. a turntable; 801. an opening; 802. installing a shell; 803. a double output shaft motor; 804. a conical stirring shaft; 805. a spiral sheet; 9. an external thread; 10. a sealing cover; 11. a slot; 12. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a feeding device of a double helix conical mixer, including four landing legs 1, the inboard diapire is equipped with compounding casing 2 of taking the valve discharge gate and installs compounding fill 3 and two screw stirrers 4 at compounding casing 2 upper surface, the one end of four landing legs 1 and the outer fixed surface of compounding casing 2 install, feed inlet 5 has been seted up to the upper surface of compounding casing 2, the lower surface of compounding fill 3 is connected with the outer fixed surface of feed inlet 5, the inner wall of compounding fill 3 is provided with fixed column 6, the lower surface evenly distributed of fixed column 6 has four cross sections to be triangular connecting plate 7, the one end of connecting plate 7 and the inner wall fixed connection of feed inlet 5, the lower surface of connecting plate 7 is provided with rotary mechanism, rotary mechanism includes carousel 8, opening 801 has been seted up to the surface of carousel 8, it falls into compounding casing 2 from opening 801 to drive the raw and expect drilling fluid in the compounding fill 3 to rotate through drive carousel 8.

In order to seal the mixing hopper 3, an external thread 9 is arranged on the outer surface of the mixing hopper 3, a sealing cover 10 is in threaded connection with the outer surface of the external thread 9, the mixing hopper 3 is sealed through the threaded connection between the sealing cover 10 and the mixing hopper 3, and meanwhile, the mounting and the dismounting are convenient.

In order to avoid that the drilling fluid raw materials poured into the mixing hopper 3 directly fall into the mixing shell 2 through the opening 801, two slots 11 are respectively formed in the outer surface of the fixing column 6 and the inner wall of the mixing hopper 3, the clamping baffle 12 slides on the inner wall of the slot 11, the interior of the mixing hopper 3 is divided into two parts through the two baffles 12 in the slot 11, one part is used for containing the drilling fluid raw materials, the other part prevents the drilling fluid raw materials from entering, and the drilling fluid raw materials are firstly mixed in the mixing hopper 3.

In order to prevent that drilling fluid raw and other materials from fighting 3 at the compounding, fixed column 6, connecting plate 7, adhere to on compounding casing 2 and the opening 801, at the inner wall of compounding fill 3, the surface of fixed column 6, the surface of connecting plate 7, the inner wall of compounding casing 2 and the inner wall of opening 801 evenly distributed fluorocarbon coating respectively, fluorocarbon coating has unique inadhesion and low friction nature, can prevent it from fighting 3, fixed column 6, connecting plate 7, compounding casing 2 and opening 801 from adhering to, make drilling fluid raw and other materials can fall into in the compounding casing 2 completely.

In order to facilitate the drilling fluid raw and other materials to fall into mixing body 2, set up the inner wall shape of opening 801 into the inclined plane to mutually support with connecting plate 7 and mixing hopper 3, make drilling fluid raw and other materials can fall into mixing body 2 completely.

In order to drive the rotating disc 8 to rotate, the lower surface of the rotating disc 8 is provided with the mounting shell 802 through a bearing, the upper surface of the rotating disc 8 is arranged on the lower surface of the fixing column 6 through another bearing, the inner wall of the mounting shell 802 is fixedly provided with the double-output-shaft motor 803, one output shaft of the double-output-shaft motor 803 penetrates through the mounting shell 802 to be fixedly sleeved with the lower surface of the rotating disc 8, the rotating disc 8 is driven to rotate through the rotation of the output shaft of the double-output-shaft motor 803, the rotating disc 8 rotates to drive the opening 801 to rotate, and drilling fluid raw materials in the mixing hopper 3 conveniently fall into the mixing shell 2 through the opening 801.

In order to stir and mix the raw materials of the drilling fluid in the middle of the mixing shell 2, another output shaft of the dual-output shaft motor 803 passes through the installation shell 802 and is fixedly sleeved with the conical stirring shaft 804, the outer surface of the conical stirring shaft 804 is fixedly sleeved with the spiral plate 805, the conical stirring shaft 804 is driven to rotate through the rotation of the output shaft of the dual-output shaft motor 803, and the spiral plate 805 is driven to rotate through the rotation of the conical stirring shaft 804.

Through setting up rotary mechanism, be convenient for the drilling fluid raw and other materials in the mixing hopper 3 fall into in the compounding casing 2 from opening 801, be convenient for simultaneously carry out comprehensive even stirring to the drilling fluid raw and other materials in the compounding casing 2, the rotation of one of them output shaft of two play axle motors 803 drives carousel 8 and rotates, the rotation of carousel 8 drives opening 801 and rotates, when opening 801 rotates the region of compounding hopper 3, the drilling fluid raw and other materials in the compounding hopper 3 get into the compounding casing 2 from feed inlet 5 through opening 801, the rotation of another output shaft of two play axle motor 803 drives toper (mixing) shaft 804 and rotates, the rotation of toper (mixing) shaft 804 drives flight 805 and rotates, flight 805 and two screw agitator 4's mutually supporting carry out the homogeneous mixing to the drilling fluid raw and other materials in the compounding casing 2, reach the effect that improves mixing speed, can discharge outward while feeding inwards, the direction of helical stirring upwards specifically, drilling fluid raw and other materials are leading-in downwards, the spiral upwards rotates the stirring this moment, realize the mixing of opposite stroke formula, after only need by oneself raw and other materials fully mix, can be discharged from the discharge gate of the inboard diapire of compounding casing 2, make it present on-line mixing effect, if the on-line mixing effect, can close the valve when need not mix.

The working principle is as follows: before use, two sides of two baffles 12 are sequentially inserted into a fixed column 6 and an insertion groove 11 on a mixing hopper 3, then drilling fluid raw materials to be mixed are poured into the mixing hopper 3, then a sealing cover 10 is in threaded connection with an external thread 9 on the mixing hopper 3 to seal the mixing hopper 3, and then a double-output-shaft motor 803 and two screw type stirrers 4 are started simultaneously;

the rotation of one output shaft of the double-output-shaft motor 803 drives the rotating disc 8 to rotate, the rotation of the rotating disc 8 drives the opening 801 to rotate, and the rotation of the opening 801 facilitates the drilling fluid raw materials in the mixing hopper 3 to fall into the mixing shell 2 from the feeding hole 5 through the opening 801;

meanwhile, the rotation of the other output shaft of the double-output-shaft motor 803 drives the conical stirring shaft 804 to rotate, the rotation of the conical stirring shaft 804 drives the spiral piece 805 to rotate, and the spiral piece 805 and the two screw type stirrers 4 are matched with each other to uniformly mix raw materials of the drilling fluid in the mixing shell 2.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a feed arrangement of double helix conical mixer, is equipped with compounding casing (2) of taking the valve discharge gate and installs including four landing legs (1), inboard diapire the compounding fill (3) and two screw agitator (4) of compounding casing (2) upper surface, its characterized in that: four the one end of landing leg (1) with the fixed surface installation of compounding casing (2), feed inlet (5) have been seted up to the upper surface of compounding casing (2), the lower surface of mixing hopper (3) with the fixed surface connection of feed inlet (5), the inner wall of mixing hopper (3) is provided with fixed column (6), the lower surface evenly distributed of fixed column (6) has four cross sections to be triangular connecting plate (7), the one end of connecting plate (7) with the inner wall fixed connection of feed inlet (5), the lower surface of connecting plate (7) is provided with rotary mechanism, rotary mechanism includes carousel (8), opening (801) have been seted up to the surface of carousel (8), through the drive carousel (8) rotate the drive raw and other materials in mixing hopper (3) are followed opening (801) falls into mixing casing (2).

2. The feeding device of a twin-screw conical mixer according to claim 1, characterized in that: the outer surface of the mixing hopper (3) is provided with an external thread (9), and the outer surface of the external thread (9) is in threaded connection with a sealing cover (10).

3. The feeding device of a twin-screw conical mixer according to claim 1, characterized in that: two slots (11) are respectively formed in the outer surface of the fixing column (6) and the inner wall of the mixing hopper (3), and baffles (12) are clamped in the inner walls of the slots (11) in a sliding mode.

4. The feeding device of a twin-screw conical mixer according to claim 1, characterized in that: fluorocarbon coatings are uniformly distributed on the inner wall of the mixing hopper (3), the outer surface of the fixing column (6), the outer surface of the connecting plate (7), the inner wall of the mixing shell (2) and the inner wall of the opening (801), and the inner wall of the opening (801) is in an inclined plane shape.

5. The feeding device of a twin-screw conical mixer according to claim 1, characterized in that: the rotating mechanism further comprises an installation shell (802), the upper surface of the installation shell (802) is installed on the lower surface of the rotary table (8) through a bearing, the upper surface of the rotary table (8) is installed on the lower surface of the fixing column (6) through another bearing, a double-output-shaft motor (803) is fixedly installed on the inner wall of the installation shell (802), and one output shaft of the double-output-shaft motor (803) penetrates through the installation shell (802) and is fixedly sleeved with the lower surface of the rotary table (8).

6. The feeding device of a twin-screw conical mixer according to claim 5, characterized in that: the other output shaft of the double-output-shaft motor (803) penetrates through the mounting shell (802) and is fixedly sleeved with a conical stirring shaft (804), and the outer surface of the conical stirring shaft (804) is fixedly sleeved with a spiral sheet (805) attached to the outer surface of the conical stirring shaft (804).