CN211463097U

CN211463097U - Reaction kettle for producing alkyl phosphine

Info

Publication number: CN211463097U
Application number: CN201920991954.1U
Authority: CN
Inventors: 戴轩武; 王瑞敏; 刘锋; 江卓贤
Original assignee: Nanjing Weifu Chemical Technology Co ltd
Current assignee: Nanjing Weifu Chemical Technology Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-09-11
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a reation kettle of production alkyl phosphine relates to chemical industry equipment technical field. The reaction kettle for producing alkyl phosphine comprises: the stirring shaft is arranged in the stirring kettle, is inserted into the mixed solution and is controlled by the driving device to rotate relative to the stirring kettle; the filling cavity is rotationally connected to the stirring shaft, is positioned below the liquid level of the mixed solution and comprises a plurality of material distributing openings, and the material distributing openings are positioned on the side wall of the filling cavity; one end of each conveying pipe is connected with the material storage equipment, the other end of each conveying pipe is connected with the filling cavity, and a feeding hole is formed in the filling cavity; and the extruding mechanism is arranged in the filling cavity and extrudes the materials in the filling cavity into the mixed solution through the material dividing port.

Description

Reaction kettle for producing alkyl phosphine

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a reaction kettle for producing alkyl phosphine.

Background

In the preparation process of alkyl phosphine, the solution of various additives is mixed and stirred, and the stirring and mixing are usually carried out in a reaction kettle. And various additives for preparing alkyl phosphine have poor intersolubility, so that the layering is easy to occur in a reaction kettle.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a reaction kettle for producing alkyl phosphine, so that the mixing efficiency of the reaction kettle is improved.

In order to solve the above technical problems, the present invention provides a reaction kettle for producing alkyl phosphine, comprising:

the stirring shaft is arranged in the stirring kettle, is inserted into the mixed solution and is controlled by the driving device to rotate relative to the stirring kettle;

the filling cavity is rotationally connected to the stirring shaft, is positioned below the liquid level of the mixed solution and comprises a plurality of material distributing openings, and the material distributing openings are positioned on the side wall of the filling cavity;

one end of each conveying pipe is connected with the material storage equipment, the other end of each conveying pipe is connected with the filling cavity, and a feeding hole is formed in the filling cavity;

and the extruding mechanism is arranged in the filling cavity and extrudes the materials in the filling cavity into the mixed solution through the material dividing port.

The material distributing openings are uniformly distributed along the depth direction of the mixed solution.

The material distributing openings at the same height are distributed in an annular mode, each annular is regarded as a group, and the distance between the material distributing openings in the two adjacent groups of the annular distribution is equal.

The material distributing openings which are distributed in the adjacent two rings are arranged in a staggered mode.

The material extruding mechanism comprises an extruding pressing plate and an extruding cylinder for controlling the extruding pressing plate to extrude materials.

The material extruding cylinder is positioned at the top of the filling cavity, so that the material extruding pressing plate extrudes materials from top to bottom along the vertical direction during work.

The conveying pipe is a flexible pipe with deformation capacity so as to adapt to the vibration of the packing cavity.

The material distributing port is covered with a one-way discharging film which is made of elastic materials, the one-way discharging film is provided with an opening for materials to flow out, the opening is in a closed state in a natural state, the opening is extruded to generate elastic deformation and protrudes to the outer side of the filling cavity to open the opening, and the opening is restored and closed again after the pressure is removed.

The one-way discharging film protrudes out of the filling cavity to form an elastic bulge, and the opening is formed in the elastic bulge to reduce the opening resistance.

Stirring blades extend out of the stirring shaft, and laminated plates are arranged on the stirring blades and distributed in the vertical direction.

The laminated plates are obliquely arranged so as to prevent the mixed solution from attaching to the stirring blades and rising, and a flow equalizing layer is formed between every two adjacent laminated plates.

The invention has the beneficial effects that:

(1) the filling cavity is positioned below the liquid level of the mixed solution, at the moment, additives are continuously added into the filling cavity through different material conveying pipes, and the additives are divided into a plurality of strands through the material extruding pressing plate and enter the mixed solution from each separation material port. Therefore, the additive added later is divided into several parts when entering the mixed solution, and is easier to mix with the mixed solution.

(2) In the invention, the rotation of the stirring shaft can be understood as that a rotating sleeve controlled by a motor is arranged outside the stirring shaft, the core part of the rotating shaft is static relative to the rotating sleeve, and the filling cavity and the extruding cylinder are fixed on the core part of the rotating shaft and are rotationally connected with the rotating sleeve on the outer layer of the rotating shaft, so that the rotating sleeve drives the stirring blades to rotate, and the filling cavity is in a relatively static state.

(3) The plywood distributes along vertical direction, forms the laminar flow layer between the adjacent plywood, because stirring vane when stirring mixed solution, mixed solution can remove to cauldron body edge under the effect of centrifugal force, removes the displacement that the in-process can have rising simultaneously, and the branch material mouth that distributes along vertical direction. A plurality of additives are extruded in a vertical direction, and when the additives have an upward displacement by a centrifugal force, they are easily fused with each other in the vertical direction. The laminated board prevents the additives from being mixed with each other along the vertical direction, so that the dispersibility of the additives is ensured, and the additives needing to be added later are easier to be mixed in the solution.

Drawings

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

FIG. 2 is a cross-sectional view showing the structure of the present invention;

FIG. 3 is an enlarged view showing the structure of a material-separating opening;

FIG. 4 is a perspective view showing the structure of a stirring vane;

fig. 5 is a perspective view showing a laminate structure.

Wherein: 1. a stirring shaft; 2. a packing cavity; 21. a delivery pipe; 211. a feed inlet; 22. a material distributing port; 221. one-way discharging of the film; 222. an elastic bulge; 23. extruding and pressing plates; 24. a material extruding cylinder; 3. a stirring blade; 31. and (4) laminating the plates.

Detailed Description

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1:

the structure of the reaction kettle for producing alkyl phosphine provided by the embodiment is shown in the figure.

The reaction kettle for producing alkyl phosphine comprises:

the stirring shaft 1 is arranged in the stirring kettle, is inserted into the mixed solution and is controlled by the driving device to rotate relative to the stirring kettle;

the packing cavity 2 is rotationally connected to the stirring shaft 1, is positioned below the liquid level of the mixed solution and comprises a plurality of material distributing openings 22, and the material distributing openings 22 are positioned on the side wall of the packing cavity 2;

a plurality of material conveying pipes 21, one end of which is connected with the material storage device, the other end of which is connected with the packing cavity 2, and a feeding hole 211 is formed on the packing cavity 2;

and the extruding mechanism is arranged in the filling cavity 2 and extrudes the materials in the filling cavity 2 into the mixed solution through the discharge opening 22.

The distribution ports 22 are uniformly distributed in the depth direction of the mixed solution.

The material distributing openings 22 at the same height are distributed annularly, each ring is regarded as a group, and the distances between the two groups of the material distributing openings 22 distributed annularly are equal.

The two adjacent annularly distributed material distributing openings 22 are arranged in a staggered manner.

The extruding mechanism comprises an extruding pressing plate 23 and an extruding cylinder 24 for controlling the extruding pressing plate 23 to extrude the material.

The material extruding cylinder 24 is positioned at the top of the filling cavity 2, so that the material extruding press plate 23 extrudes materials from top to bottom along the vertical direction during work.

The feed delivery pipe 21 is a flexible pipe with deformation capability to adapt to the vibration of the packing cavity 2.

The material distributing opening 22 is covered with a one-way discharging film 221, the one-way discharging film 221 is made of elastic materials, an opening for materials to flow out is formed in the one-way discharging film 221, the opening is in a closed state in a natural state, the opening is extruded to generate elastic deformation and protrudes towards the outer side of the filling cavity 2 to open the opening, and the opening is restored and closed again after pressure is removed.

The one-way discharging film 221 protrudes out of the filling cavity 2 to form an elastic protrusion 222, and an opening is formed on the elastic protrusion 222 to reduce the resistance of opening.

Stirring shaft 1 goes up to stretch out has stirring vane 3, is equipped with plywood 31 on the stirring vane 3, and plywood 31 distributes along vertical direction.

The laminates 31 are arranged obliquely to prevent the mixed solution from rising along with the stirring blades 3, and a flow equalizing layer is formed between adjacent laminates 31.

The filling chamber 2 is located below the liquid level of the mixed solution, and at this time, the additives are continuously added into the filling chamber 2 through different material conveying pipes 21, and the additives are divided into a plurality of strands through the extrusion pressing plate 23 and enter the mixed solution from each separation port. Therefore, the additive added later is divided into several parts when entering the mixed solution, and is easier to mix with the mixed solution.

In the invention, the rotation of the stirring shaft 1 can be understood that a rotating sleeve controlled by a motor is arranged outside the stirring shaft 1, the core part of the rotating shaft is static relative to the rotating sleeve, and the filling cavity 2 and the extruding cylinder 24 are fixed on the core part of the rotating shaft and are in rotating connection with the rotating sleeve on the outer layer of the rotating shaft, so that the rotating sleeve drives the stirring blades 3 to rotate, and the filling cavity 2 is in a relatively static state.

Plywood 31 distributes along vertical direction, forms the homoflow layer between the adjacent plywood 31 because stirring vane 3 when stirring mixed solution, mixed solution can remove to the cauldron body edge under the effect of centrifugal force, and the displacement that can rise simultaneously exists in the removal in-process, and along the branch material mouth 22 of vertical direction distribution. A plurality of additives are extruded in a vertical direction, and when the additives have an upward displacement by a centrifugal force, they are easily fused with each other in the vertical direction. The laminate 31 prevents the additives from being mixed with each other in the vertical direction, thereby ensuring the dispersibility of the additives and enabling the additives to be added later to be more easily mixed in the solution.

In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. A reation kettle of production alkyl phosphine which characterized in that: the method comprises the following steps:

the stirring shaft (1) is arranged in the stirring kettle, is inserted into the mixed solution and is controlled by the driving device to rotate relative to the stirring kettle;

the filling cavity (2) is rotationally connected to the stirring shaft (1), is positioned below the liquid level of the mixed solution and comprises a plurality of material distributing openings (22), and the material distributing openings (22) are positioned on the side wall of the filling cavity (2);

a plurality of material conveying pipes (21), one end of each material conveying pipe is connected with material storage equipment, the other end of each material conveying pipe is connected with the filling cavity (2), and a feeding hole (211) is formed in the filling cavity (2);

the extruding mechanism is arranged in the filling cavity (2) and extrudes the materials in the filling cavity (2) into the mixed solution through the material distributing opening (22);

stirring shaft (1) goes up to stretch out has stirring vane (3), be equipped with plywood (31) on stirring vane (3), plywood (31) distribute along vertical direction.

2. The reactor for producing alkylphosphines according to claim 1, wherein: the laminated plates (31) are obliquely arranged to prevent the mixed solution from attaching to the stirring blades to rise, and a flow equalizing layer is formed between every two adjacent laminated plates (31).

3. The reactor for producing alkylphosphines according to claim 2, wherein: the material distributing openings (22) are uniformly distributed along the depth direction of the mixed solution.

4. The reactor for producing alkylphosphines according to claim 3, wherein: the material distributing openings (22) located at the same height are distributed annularly, each ring is regarded as a group, and the distances between the material distributing openings (22) distributed in two adjacent groups are equal.

5. The reactor for producing alkylphosphines according to claim 4, wherein: the material distributing openings (22) distributed in the two adjacent groups are arranged in a staggered mode.

6. The reactor for producing alkylphosphines according to claim 5, wherein: the material extruding mechanism comprises an extruding pressing plate (23) and an extruding cylinder (24) for controlling the extruding pressing plate (23) to extrude materials.

7. The reactor for producing alkylphosphines according to claim 6, wherein: the material extruding cylinder (24) is positioned at the top of the packing cavity (2), so that the material extruding press plate (23) extrudes materials from top to bottom along the vertical direction during work.

8. The reactor for producing alkylphosphines according to claim 7, wherein: the material distributing port (22) is covered with a one-way discharging film (221), the one-way discharging film (221) is made of elastic materials, an opening for materials to flow out is formed in the one-way discharging film (221), the opening is in a closed state in a natural state, the opening is extruded to generate elastic deformation and protrudes towards the outer side of the filling cavity (2) to open the opening, and the opening is restored and closed again after the pressure is removed.

9. The reactor for producing alkylphosphines according to claim 8, wherein: the one-way discharging film (221) protrudes out of the filling cavity (2) to form an elastic bulge (222), and the opening is formed in the elastic bulge (222) to reduce the resistance of the opening.

10. The reactor for producing alkylphosphines according to claim 1, wherein: the conveying pipe (21) is a flexible pipe with deformation capacity so as to adapt to the vibration of the packing cavity (2).