Flame retardant production catalytic reaction device

Abstract

A catalytic reaction device for flame retardant production relates to the technical field of reaction devices and comprises a kettle body, a heat preservation cylinder is coaxially and fixedly connected to the outer wall of the kettle body, a spring tube is arranged in the heat preservation cylinder, the lower end of the spring tube is fixedly arranged, and the upper end of a spring is vertically arranged in a lifting manner; stirring blades in frictional contact with the inner bottom surface and the inner side wall of the kettle body are fixedly connected to the lower end part of the feeding pipe; distribution holes communicated with an inner cavity of the feeding pipe are uniformly distributed in the outer wall, close to the lower end part, of the feeding pipe. The reaction kettle solves the problems that in the prior art, when a material is discharged out of the kettle body after the catalytic reaction of the material is completed, as the heating structure needs to ensure continuous heating of the material, when the material liquid layer descends, the material is easily burnt and adhered on the inner wall of the region, above the material liquid layer, of the kettle body under the influence of the heating structure; and material leading-out is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction devices, in particular to a catalytic reaction device for producing flame retardants. Background Art

[0002] In the production process of flame retardants, the reactor is an indispensable equipment. In the prior art, the stirring structure of the reactor is not reasonable. Usually, the inner wall of the reactor is smooth. Under the action of stirring, the material often forms a vortex centered on the stirring shaft, which makes the material around the inner wall of the reactor move in a circle under the action of inertia, and the material cannot be evenly mixed; when adding solid materials to the reactor, the manhole cover of the reactor needs to be opened, and the manhole cover needs to be covered after the materials are added. However, there is often more than one material in the reactor. When the manhole cover is opened to add materials, due to the failure to open and close the manhole cover in time, and other materials are toxic or volatile, it will cause certain harm to the human body or the environment.

[0003] The prior art discloses a patent with a publication number of CN205731264U, which includes a motor, a rotating shaft, a stirring blade, a kettle body and a feed port, wherein at least one guide plate is provided on the inner side wall of the kettle body, the guide plate is arc-shaped, one end face of the guide plate is fixed on the inner side wall of the kettle body, and the other end face of the guide plate is bent inward along the rotation direction of the rotating shaft; a feed valve is provided on the feed port, and a pre-feeding hopper is provided above the feed port, and a sealing cover matching the pre-feeding hopper is provided on the pre-feeding hopper. The reactor for flame retardant production described in the utility model is provided with a guide plate, which can continuously change the rotation direction of the solid material near the inner side wall of the reactor to make the material mixing more uniform; a pre-feeding hopper and a sealing cover are provided, which can effectively prevent other toxic materials in the reactor from volatilizing and causing harm to people or the environment when adding solid materials.

[0004] As the existing technologies including the above patents are used, their shortcomings are gradually exposed, mainly in the following aspects:

[0005] First, when the existing reactor is in use, it is necessary to use a heating structure to heat the material in the reactor body to make it reach the catalytic temperature. After the catalytic reaction of the material is completed, when it is discharged from the reactor body, the heating structure needs to ensure continuous heating of the material. As a result, when the liquid layer of the material drops, the area of ​​the reactor body above the liquid layer of the material is prone to dry paste adhesion on the inner wall under the influence of the heating structure, which affects the discharge of the material.

[0006] Second, the existing kettle cannot ensure the uniformity of the catalytic reaction of the materials when adding various materials for preparing the flame retardant.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model provides a catalytic reaction device for the production of flame retardants, which is used to solve the problem in traditional technology that after the catalytic reaction of the material is completed, when it is discharged from the kettle body, the heating structure needs to ensure continuous heating of the material, resulting in the phenomenon of dry paste of the material sticking to the inner wall of the kettle body above the material liquid layer when the material liquid layer descends under the influence of the heating structure, thus affecting the material discharge.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] The flame retardant production catalytic reaction device comprises a kettle body, an outer wall of which is coaxially fixedly connected with a heat preservation tube, a spring tube is arranged in the heat preservation tube, the lower end of the spring tube is fixedly arranged, and the upper end of the spring is vertically lifted and lowered.

[0011] A feed pipe is vertically rotatable in the kettle body, and a stirring blade is fixedly connected to the lower end of the feed pipe, which is in frictional contact with the bottom surface and inner wall of the kettle body. Distribution holes connecting the inner cavity of the feed pipe are evenly distributed on the outer wall of the feed pipe near the lower end.

[0012] As an optimized solution, the upper end of the feed pipe extends to the top of the kettle body and is rotatably inserted with a connecting cylinder, which is connected to a three-way valve, and the other two ports of the three-way valve are respectively connected to a liquid source and a gas source.

[0013] As an optimized solution, a driving disk is vertically lifted inside the insulation cylinder, a connecting tube is fixedly connected to the driving disk, the lower end of the connecting tube is fixedly connected to the upper end of the spring tube, a liquid inlet nozzle is fixedly connected to the upper end of the insulation cylinder, and the lower end of the liquid inlet nozzle is fixedly connected to the upper end of the connecting tube through a telescopic bellows.

[0014] As an optimized solution, the lower end of the heat-insulating cylinder is fixedly connected with a liquid outlet nozzle which is fixedly connected to the lower end of the spring tube.

[0015] As an optimized solution, a telescopic cylinder is vertically fixed to the relative outer wall of the insulation cylinder, the telescopic end of the telescopic cylinder is fixedly connected to a disk body mounted on the insulation cylinder, the inner circle of the disk body is surrounded by a plurality of first magnetic blocks, and the outer circle of the driving disk is fixedly connected to a second magnetic block matching the first magnetic block.

[0016] As an optimized solution, a gear ring is fixedly connected to the outer wall of the feed pipe above the kettle body, a driving machine is fixedly connected to the upper end of the kettle body, and the output end of the driving machine is meshed with the gear ring by a gear.

[0017] As an optimized solution, a feeding cylinder connected to the inner cavity of the kettle body is fixedly connected to the top of the kettle body, and two flap valves are arranged in parallel from top to bottom on the feeding cylinder.

[0018] As an optimized solution, a dewatering valve connected to the inner cavity of the kettle body is fixedly connected to the center of the lower end thereof.

[0019] As an optimized solution, support legs are fixedly connected in parallel to the bottom surface of the kettle body.

[0020] As an optimized solution, the stirring blade includes a bottom blade fixedly connected to the side wall opposite to the lower end of the feed pipe, and the outer end of the bottom blade is fixedly connected to the side blade.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] By setting a liquid inlet nozzle, external high-temperature water is introduced, and the inner cavity of the kettle is heated by a spring tube. When it is in a full material state, the telescopic cylinder drives the driving disk to move to a high temperature, and the spring tube is used to heat the entire kettle. When the catalytic reaction of the flame retardant material is completed, the outlet valve is opened to discharge the material. When the liquid layer of the material in the kettle drops, the telescopic cylinder drives the driving disk to move downward, so that the area above the liquid layer of the material is no longer heated, reducing the phenomenon of dry paste adhesion;

[0023] By setting a feed pipe and stirring blades, the internal materials can be stirred to improve uniformity, wherein the feed pipe is provided with distribution holes, and the upper end is connected to a three-way valve to introduce liquid or gas according to the needs of the catalytic reaction, thereby improving the catalytic reaction efficiency;

[0024] By arranging two flap valves in parallel from top to bottom on the feeding cylinder, when adding materials or additives inside the kettle body, the two flap valves are opened alternately to prevent the internal toxic gas from leaking out and preventing harm to the human body or the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] In the figure: 1- kettle body; 2- insulation cylinder; 3- spring tube; 4- telescopic cylinder; 5- disk body; 6- driving disk; 7- first magnetic block; 8- second magnetic block; 9- telescopic bellows; 10- liquid inlet nozzle; 11- liquid outlet nozzle; 12- feeding pipe; 13- stirring blade; 14- distribution hole; 15- connecting cylinder; 16- three-way valve; 17- driving machine; 18- gear ring; 19- feeding cylinder; 20- flap valve; 21- export valve; 22- supporting leg. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0029] like Figure 1 As shown, the flame retardant production catalytic reaction device comprises a kettle body 1, an insulation tube 2 is coaxially fixedly connected to the outer wall of the kettle body 1, a spring tube 3 is arranged in the insulation tube 2, the lower end of the spring tube 3 is fixedly arranged, and the upper end of the spring is vertically lifted and lowered.

[0030] A feed pipe 12 is vertically rotated in the kettle body 1, and the lower end of the feed pipe 12 is fixedly connected to a stirring blade 13 that is in frictional contact with the inner bottom surface and inner wall of the kettle body 1. Distribution holes 14 that are connected to its inner cavity are evenly distributed on the outer wall of the feed pipe 12 near the lower end.

[0031] The upper end of the feed pipe 12 extends to the top of the kettle body 1 and is rotatably inserted with a connecting cylinder 15, which is connected to a three-way valve 16, and the other two ports of the three-way valve 16 are respectively connected to a liquid source and a gas source.

[0032] A driving disk 6 is vertically lifted inside the insulation cylinder 2, a connecting tube is fixedly connected to the driving disk 6, the lower end of the connecting tube is fixedly connected to the upper end of the spring tube 3, a liquid inlet nozzle 10 is fixedly connected to the upper end of the insulation cylinder 2, and the lower end of the liquid inlet nozzle 10 is fixedly connected to the upper end of the connecting tube through a telescopic bellows 9.

[0033] The lower end of the heat preservation tube 2 is fixedly connected with a liquid outlet nozzle 11 which is fixedly connected with the lower end of the spring tube 3 .

[0034] A telescopic cylinder 4 is vertically fixed on the relative outer wall of the insulation cylinder 2, and a disc body 5 mounted on the insulation cylinder 2 is fixed to the telescopic end of the telescopic cylinder 4. A plurality of first magnetic blocks 7 are arranged around the inner circle of the disc body 5, and a second magnetic block 8 matching the first magnetic block 7 is fixed to the outer circle of the driving disc 6. The telescopic cylinder 4 drives the driving disc 6 to rise or fall by utilizing the principle of attraction between the first magnetic block 7 and the second magnetic block 8.

[0035] A gear ring 18 is fixedly connected to the outer wall of the feed pipe 12 above the kettle body 1, and a driving machine 17 is fixedly connected to the upper end of the kettle body 1. The output end of the driving machine 17 is meshed with the gear ring 18 by means of a gear.

[0036] A feeding cylinder 19 connected to the inner cavity of the kettle body 1 is fixedly connected to the top thereof, and two flap valves 20 are arranged side by side on the feeding cylinder 19 from top to bottom.

[0037] A discharge valve 21 communicating with the inner cavity of the kettle body 1 is fixedly connected at the center of the lower end thereof.

[0038] Support legs 22 are fixedly connected in parallel to the bottom surface of the kettle body 1 .

[0039] The stirring blade 13 includes a bottom blade fixedly connected to the side wall opposite to the lower end of the feed pipe 12, and the outer end of the bottom blade is fixedly connected to the side blade.

[0040] The working principle of this device is:

[0041] By setting the liquid inlet nozzle 10, external high-temperature water is introduced, and the spring tube 3 is used to heat the inner cavity of the kettle body 1. When it is in a full material state, the telescopic cylinder 4 drives the driving disk 6 to move to a high temperature, and the spring tube 3 is used to heat the kettle body 1 as a whole. When the catalytic reaction of the flame retardant material is completed, the outlet valve 21 is opened to discharge the material, and the material is discharged. When the liquid layer of the material in the kettle body 1 decreases, the telescopic cylinder 4 drives the driving disk 6 to move downward, so that the area above the liquid layer of the material is no longer heated, thereby reducing the phenomenon of dry paste adhesion;

[0042] By providing a feed pipe 12 and a stirring blade 13, the internal material is stirred to improve uniformity, wherein a distribution hole 14 is provided on the feed pipe 12, and the upper end is connected to a three-way valve 16, so that liquid or gas can be introduced according to the needs of the catalytic reaction to improve the catalytic reaction efficiency;

[0043] By arranging two flap valves 20 in parallel from top to bottom on the feeding cylinder 19, when adding materials or additives into the kettle body 1, the two flap valves 20 are opened alternately to prevent the internal toxic gas from leaking out and causing harm to the human body or the environment.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A catalytic reaction device for producing flame retardants, characterized in that: The invention comprises a kettle body (1), a heat preservation tube (2) is coaxially fixedly connected to the outer wall of the kettle body (1), a spring tube (3) is arranged in the heat preservation tube (2), the lower end of the spring tube (3) is fixedly arranged, and the upper end of the spring is vertically raised and lowered. A feed pipe (12) is vertically rotatably provided in the kettle body (1), and a stirring blade (13) is fixedly connected to the lower end of the feed pipe (12) so as to be in frictional contact with the inner bottom surface and inner side wall of the kettle body (1). Distribution holes (14) communicating with the inner cavity of the feed pipe (12) are evenly distributed on the outer wall of the feed pipe (12) near the lower end.

2. The flame retardant production catalytic reaction device according to claim 1, characterized in that: The upper end of the feed pipe (12) extends to the top of the kettle body (1) and is rotatably inserted with a connecting tube (15), the connecting tube (15) being connected to a three-way valve (16), and the other two ports of the three-way valve (16) are respectively connected to a liquid source and a gas source.

3. The catalytic reaction device for producing flame retardants according to claim 2, characterized in that: A driving disk (6) is vertically raised and lowered inside the heat-insulating cylinder (2), a connecting tube is fixedly connected to the driving disk (6), the lower end of the connecting tube is fixedly connected to the upper end of the spring tube (3), the upper end of the heat-insulating cylinder (2) is fixedly connected to a liquid inlet nozzle (10), the lower end of the liquid inlet nozzle (10) is fixedly connected to the upper end of the connecting tube via a telescopic bellows (9).

4. The catalytic reaction device for producing flame retardants according to claim 3, characterized in that: The lower end of the heat-insulating cylinder (2) is fixedly connected with a liquid outlet nozzle (11) which is fixedly connected to the lower end of the spring tube (3).

5. The catalytic reaction device for producing flame retardants according to claim 4, characterized in that: A telescopic cylinder (4) is vertically fixedly connected to the relative outer wall of the heat-insulating cylinder (2); a disc (5) mounted on the heat-insulating cylinder (2) is fixedly connected to the telescopic end of the telescopic cylinder (4); a plurality of first magnetic blocks (7) are arranged around the inner circle of the disc (5); and a second magnetic block (8) matching the first magnetic block (7) is fixedly connected to the outer circle of the driving disc (6).

6. The catalytic reaction device for producing flame retardants according to claim 5, characterized in that: The feed pipe (12) is fixedly connected to a gear ring (18) on its outer wall above the kettle body (1), and a driving machine (17) is fixedly connected to the upper end of the kettle body (1), and the output end of the driving machine (17) is meshed with the gear ring (18) by means of a gear.

7. The catalytic reaction device for producing flame retardants according to claim 6, characterized in that: A feeding cylinder (19) communicating with the inner cavity of the kettle (1) is fixedly connected to the top of the kettle body (1), and two flap valves (20) are arranged in parallel from top to bottom on the feeding cylinder (19).

8. The catalytic reaction device for producing flame retardants according to claim 7, characterized in that: The kettle body (1) is fixedly connected with a discharge valve (21) at the center of the lower end thereof and connected with the inner cavity thereof.

9. The catalytic reaction device for producing flame retardants according to claim 8, characterized in that: Support legs (22) are fixedly connected in parallel to the bottom surface of the kettle body (1).

10. The catalytic reaction device for producing flame retardants according to claim 9, characterized in that: The stirring blade (13) comprises a bottom blade fixedly connected to the side wall opposite to the lower end of the feed pipe (12), and the outer end of the bottom blade is fixedly connected to a side blade.

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