CN216204773U

CN216204773U - Drying device is used in copolymer production

Info

Publication number: CN216204773U
Application number: CN202122408677.7U
Authority: CN
Inventors: 张森林
Original assignee: Boai Xinkaiyuan Pharmaceutical Co ltd
Current assignee: Boai Xinkaiyuan Pharmaceutical Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model belongs to the field of drying equipment, and discloses a drying device for copolymer production, which comprises a drying tank, wherein the drying device comprises a spray dryer and a cleaning assembly arranged in the spray dryer; the drying tank comprises an upper cover body and a lower tank body which are connected through flanges; the lower tank body is of an integrated structure and comprises a straight cylinder part and a circular table part which are arranged from top to bottom in sequence; the cleaning assembly comprises a rotating shaft, a left cleaning rod, a right cleaning rod and a driving motor. The utility model has simple structure and convenient operation; the cleaning assembly can clean the inner wall of the lower tank body, and prevents large materials from being adhered to the inner wall; the pivot is hollow pivot, can let in hot-blast to jar internal, improves drying efficiency down.

Description

Drying device is used in copolymer production

Technical Field

The utility model belongs to the field of drying equipment, and particularly relates to a drying device for copolymer production.

Background

A spray granulation dryer is used for drying and granulating in the preparation process of the vinyl pyrrolidone-vinyl imidazole copolymer. The spray granulation dryer is also called a spray dryer, has wide application range, can be dried by hot air flow or shaped by cold air according to the characteristics of materials, and can be used for producing a large number of products with greatly different characteristics.

The principle of spray drying is to atomize the feed liquid into particles and contact the particles with hot air to realize drying. Spray drying device among the prior art is when using, and the liquid drop adhesion after the atomizing is on the inner wall in dry chamber, can pile up on the inner wall layer upon layer afterwards, if not in time clear up, the material takes place the matter easily and becomes to lead to the fact the corruption to drying device easily, influence equipment life, and a large amount of material adhesion has still caused the waste on the inner wall.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is to provide a drying apparatus for copolymer production.

In order to achieve the purpose, the utility model is implemented according to the following technical scheme:

the drying device for producing the copolymer comprises a spray dryer and a cleaning assembly arranged in the spray dryer; the spray dryer comprises a drying tank, an atomization device arranged in the drying tank, an air inlet pipe, an exhaust pipe and a discharge pipe which are communicated with the drying tank; the atomization device is communicated with a feeding pipe; the drying tank comprises an upper cover body and a lower tank body which are connected through flanges; the atomization device is positioned at the center of the upper cover body, and the air inlet pipe is positioned at the left side of the atomization device; the exhaust pipe is positioned on the right side of the lower tank body;

the lower tank body is of an integrated structure and comprises a straight cylinder part and a circular table part which are arranged from top to bottom in sequence; the diameter of the lower end surface of the circular truncated cone part is smaller than that of the straight cylinder part;

the cleaning assembly comprises a rotating shaft, a left cleaning rod, a right cleaning rod and a driving motor; the left cleaning rod and the right cleaning rod have the same structure, and are arranged on the rotating shaft in a bilateral symmetry manner; the shape of the left sweeping rod is matched with the inner wall of the left side of the lower tank body; bearings are sleeved on the outer sides of the upper parts of the left cleaning rod and the right cleaning rod; the bearing is fixedly connected with the inner side wall of the lower tank body through a plurality of connecting blocks;

the vertical part of the left cleaning rod is provided with a scraper A which is contacted with the side wall of the straight cylinder part, and the inclined part of the right cleaning rod is provided with a scraper B which is contacted with the side wall of the circular table part; the horizontal part of the left cleaning rod is provided with a cleaning brush A which is contacted with the bottom surface of the circular table part;

the rotating shaft, the bearing and the lower tank body are coaxial; the discharge pipe is positioned at the bottom of the circular table part on the right side of the rotating shaft;

the rotating shaft penetrates through the bottom of the lower tank body and is rotatably connected with the bottom of the lower tank body; the driving motor is in transmission connection with the rotating shaft through a transmission wheel and a transmission belt; the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the left cleaning rod and the right cleaning rod to rotate in the lower tank body.

Preferably, the right side of the atomization device is provided with a flange window communicated with the upper cover body.

Preferably, the exhaust pipe inclines to point to the upper right, and the included angle between the exhaust pipe and the lower tank body is 45 degrees.

Preferably, the upper end surfaces of the left cleaning rod and the right cleaning rod are fixedly provided with cleaning brushes B; the brush hair of the cleaning brush B is contacted with the upper end face of the bearing and the upper end face of the connecting block.

Preferably, the rotating shaft is a hollow rotating shaft; the tail end of the rotating shaft is connected with a rotary joint; the head of the rotating shaft is communicated with a calandria, and the inner diameter of the calandria is smaller than that of the rotating shaft; the calandria is provided with a one-way valve;

a wind scooper is arranged right above the calandria through an L-shaped connecting rod; the wind scooper is conical.

Preferably, the left side of the right cleaning rod is provided with a cleaning brush C; the brush hair of the cleaning brush C is contacted with the wind scooper.

The utility model has the following function principle:

when the drying device is used, copolymer slurry to be dried enters the atomizing device from the feeding pipe, is atomized into small liquid drops by the atomizing device and is sprayed into the drying tank; the air inlet pipe feeds hot air into the drying tank, the exhaust pipe discharges the hot air, and the discharge pipe discharges the dried material.

The scraper A and the scraper B are used for scraping materials adhered to the side wall of the lower tank body, and the cleaning brush A cleans the materials falling on the bottom surface of the lower tank body into the discharge pipe for discharging. The tail part of the discharge pipe is obliquely directed to the lower right. The left cleaning rod and the right cleaning rod are fixedly connected with the bearing, so that the left cleaning rod and the right cleaning rod can be driven by the rotating shaft to stably rotate in the lower tank body. The connecting block is connected with the bearing, makes things convenient for the material to enter into down the jar internal, avoids producing the dead angle.

The flange window is an openable flange window, so that the condition in the drying tank can be conveniently observed; after the drying is finished, the flange window can be opened, the water spraying pipe is extended into the flange window, and the lower tank body is cleaned. And the drying tank comprises an upper cover body and a lower tank body which are connected through a flange, and the upper cover body can be detached to clean, maintain and repair the lower tank body when necessary.

When the rotating shaft rotates, the cleaning brush B can clean the upper end surfaces of the bearing and the connecting block, and materials are prevented from being accumulated on the upper end surfaces of the bearing and the connecting block.

The hollow rotating shaft can introduce hot air into the lower tank body for auxiliary drying; and the hot air from bottom to top can prolong the retention time of small liquid drops in the drying tank, so that the drying is more thorough. The wind scooper guides and disperses the hot wind, and can prevent a large amount of liquid drops from directly falling into the calandria. The cleaning brush C cleans the upper end surface of the air guide cover to prevent the materials from being accumulated and adhered.

The undefined components in the present invention all adopt the conventional means in the art, such as the atomizing device, the driving motor, the bearing, the flange window, the rotary joint, the one-way valve, the transmission wheel, the transmission belt, etc., which are all selected from those commonly used in the art, and those skilled in the art can select the model and the installation mode thereof according to the actual use requirement, and clearly understand how to specifically install and control the components, which is not described in detail herein.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has simple structure and convenient operation; the cleaning assembly can clean the inner wall of the lower tank body, and prevents large materials from being adhered to the inner wall; the pivot is hollow pivot, can let in hot-blast to jar internal, improves drying efficiency down.

Drawings

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

fig. 2 is a cross-sectional view taken along line E-E of fig. 1.

Description of the drawings: 1. an atomizing device; 2. an air inlet pipe; 3. an exhaust duct; 4. a discharge pipe; 5. a feed pipe; 6. an upper cover body; 7. a tank body is arranged; 8. a straight tube portion; 9. a circular table portion; 10. a rotating shaft; 11. a left sweeping bar; 12. a right sweeping bar; 13. a drive motor; 14. a bearing; 15. connecting blocks; 16. a scraper A; 17. a scraper B; 18. cleaning a brush A; 19. a flange window; 20. a cleaning brush B; 21. a rotary joint; 22. arranging pipes; 23. a one-way valve; 24. an L-shaped connecting rod; 25. a wind scooper; 26. and (4) cleaning a brush C.

Detailed Description

The utility model will be further described with reference to the drawings and specific embodiments, which are illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 2, a drying apparatus for copolymer production, which comprises a spray dryer, and a sweeping assembly installed in the spray dryer; the spray dryer comprises a drying tank, an atomizing device 1 arranged in the drying tank, an air inlet pipe 2, an air exhaust pipe 3 and a material discharge pipe 4 which are communicated with the drying tank; the atomization device 1 is communicated with a feeding pipe 5; the drying tank comprises an upper cover body 6 and a lower tank body 7 which are connected through flanges; the atomization device 1 is positioned at the center of the upper cover body 6, and the air inlet pipe 2 is positioned at the left side of the atomization device 1; the exhaust pipe 3 is positioned on the right side of the lower tank body 7;

the lower tank body 7 is of an integrated structure and comprises a straight cylinder part 8 and a circular table part 9 which are arranged from top to bottom in sequence; the diameter of the lower end surface of the circular table part 9 is smaller than that of the straight cylinder part 8;

the cleaning assembly comprises a rotating shaft 10, a left cleaning rod 11, a right cleaning rod 12 and a driving motor 13; the left cleaning rod 11 and the right cleaning rod 12 have the same structure, and the left cleaning rod 11 and the right cleaning rod 12 are arranged on the rotating shaft 10 in a bilateral symmetry manner; the shape of the left sweeping rod 11 is matched with the left inner wall of the lower tank body 7; bearings 14 are sleeved on the outer sides of the upper parts of the left cleaning rod and the right cleaning rod; the bearing 14 is fixedly connected with the inner side wall of the lower tank body 7 through eight connecting blocks 15;

the vertical part of the left cleaning rod 11 is provided with a scraper A16 contacting with the side wall of the straight cylinder part 8, and the inclined part of the right cleaning rod 12 is provided with a scraper B17 contacting with the side wall of the circular table part 9; the horizontal part of the left cleaning rod 11 is provided with a cleaning brush A18 which is contacted with the bottom surface of the circular table part 9;

the rotating shaft 10, the bearing 14 and the lower tank body 7 are coaxial; the discharge pipe 4 is positioned at the bottom of the circular table part 9 at the right side of the rotating shaft 10;

the rotating shaft 10 penetrates through the bottom of the lower tank body 7 and is rotatably connected with the bottom of the lower tank body 7; the driving motor 13 is in transmission connection with the rotating shaft 10 through a transmission wheel and a transmission belt; the driving motor 13 drives the rotating shaft 10 to rotate, and the rotating shaft drives the left cleaning rod 11 and the right cleaning rod 12 to rotate in the lower tank body 7.

And a flange window 19 communicated with the upper cover body is arranged at the right side of the atomization device 1.

The exhaust pipe 3 inclines to point to the upper right, and the included angle between the exhaust pipe 3 and the lower tank body 7 is 45 degrees.

The upper end surfaces of the left cleaning rod 11 and the right cleaning rod 12 are fixedly provided with cleaning brushes B20; the brush hair of the cleaning brush B20 is contacted with the upper end surface of the bearing 14 and the upper end surface of the connecting block 15.

The rotating shaft 10 is a hollow rotating shaft; the tail end of the rotating shaft 10 is connected with a rotary joint 21; the head of the rotating shaft 10 is communicated with a discharge pipe 22, and the inner diameter of the discharge pipe 22 is smaller than that of the rotating shaft 10; the discharge pipe 22 is provided with a one-way valve 23;

an air guide cover 25 is fixedly arranged right above the calandria 22 through an L-shaped connecting rod 24; the wind scooper 25 is conical.

A cleaning brush C26 is arranged at the left side of the right cleaning rod 12; the brush hair of the cleaning brush C26 contacts with the wind scooper 25.

The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. The drying device for producing the copolymer comprises a spray dryer and a cleaning assembly arranged in the spray dryer; the spray dryer comprises a drying tank, an atomization device arranged in the drying tank, an air inlet pipe, an exhaust pipe and a discharge pipe which are communicated with the drying tank; the atomization device is communicated with a feeding pipe; the method is characterized in that: the drying tank comprises an upper cover body and a lower tank body which are connected through flanges; the atomization device is positioned at the center of the upper cover body, and the air inlet pipe is positioned at the left side of the atomization device; the exhaust pipe is positioned on the right side of the lower tank body;

2. The drying device for copolymer production according to claim 1, characterized in that: and a flange window communicated with the upper cover body is arranged on the right side of the atomization device.

3. The drying device for copolymer production according to claim 2, characterized in that: the exhaust pipe inclines to point to the upper right, and the included angle between the exhaust pipe and the lower tank body is 45 degrees.

4. The drying device for copolymer production according to claim 3, characterized in that: the upper end surfaces of the left cleaning rod and the right cleaning rod are fixedly provided with cleaning brushes B; the brush hair of the cleaning brush B is contacted with the upper end face of the bearing and the upper end face of the connecting block.

5. The drying device for copolymer production according to claim 4, characterized in that: the rotating shaft is a hollow rotating shaft; the tail end of the rotating shaft is connected with a rotary joint; the head of the rotating shaft is communicated with a calandria, and the inner diameter of the calandria is smaller than that of the rotating shaft; the calandria is provided with a one-way valve;

6. The drying device for copolymer production according to claim 5, characterized in that: a cleaning brush C is arranged on the left side of the right cleaning rod; the brush hair of the cleaning brush C is contacted with the wind scooper.