CN213912371U

CN213912371U - Hot air distributor for closed circulation spray drying system

Info

Publication number: CN213912371U
Application number: CN202022515761.4U
Authority: CN
Inventors: 张冬毅; 顾国平; 胡满昌
Original assignee: WUXI QUNZHENG DRYING EQUIPMENT CO LTD
Current assignee: WUXI QUNZHENG DRYING EQUIPMENT CO LTD
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-10
Anticipated expiration: 2030-11-03

Abstract

The utility model relates to a spray drying technical field specifically is a hot air distributor for closed circulation spray drying system, which comprises an outer shell, the inside upper end of shell has set firmly the heating circle, the heating circle is double-deck hollow helical structure, the one end of heating circle switches on there is hot-blast induction pipe, hot-blast induction pipe is established in the outside of shell, a plurality of air outlets have been seted up to the inner wall of heating circle, the inside that one side of air outlet is located the heating circle is equipped with the water conservancy diversion arc, be formed with angle a between the output direction of a plurality of air outlets and the inner wall tangent line of heating circle, the inner wall laminating of heating circle has the scraper blade, the utility model provides a drying equipment drying speed is slow and the wasting of resources, increase drying cost's problem.

Description

Hot air distributor for closed circulation spray drying system

Technical Field

The utility model relates to a spray drying technical field specifically is a hot air distributor for closed circulation spray drying system.

Background

Spray drying is a method of applying systematic technology to material drying, and after the thin material is atomized in a drying chamber, the water is quickly vaporized in the contact with hot air, and then a dried product is obtained. The method can directly dry the solution or emulsion into powder or granular product, and can omit the procedures of evaporation, pulverization, etc.

And traditional spray drying equipment exists the drying thoroughly when using, after the material atomizing, can not be quick go out the moisture evaporation of material, and drying time is long, and efficiency is not high, and heat loss in the drying process is big, causes the cost to increase, influences the use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hot air distributor for closed circulation spray drying system has solved traditional drying equipment drying rate and wasting of resources slowly, increases drying cost's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a hot air distributor for a closed circulating spray drying system comprises a shell, wherein a heating ring is fixedly arranged at the upper end inside the shell, the heating ring is of a double-layer hollow spiral structure, a hot air inlet pipe is communicated with one end of the heating ring and is arranged outside the shell, a plurality of air outlets are formed in the inner wall of the heating ring, one side of each air outlet is positioned inside the heating ring and is provided with a flow guide arc, an angle a is formed between the output direction of each air outlet and the inner wall tangent line of the heating ring, a scraper is attached to the inner wall of the heating ring and is of a spiral structure, the outer side of each scraper is attached to the inner wall of the heating ring, a bearing is fixedly arranged at the position, located at the central line of the shell, of one end of each scraper, a lead screw is connected with the center of the bearing, and the upper end of the lead screw is rotatably connected, the lower extreme of lead screw is equipped with the meshing wheel, the lower extreme of shell is equipped with collects the chamber, the surface that collection chamber upper end one side is located the shell has set firmly the motor, the output of motor with meshing wheel intermeshing, outside one side of shell is equipped with the circulating pipe, the upper and lower both ends of circulating pipe communicate respectively the upper end and the bottom of shell, the pan feeding mouth has been seted up at the upper end center of shell.

Preferably, the center of the inner wall of the bearing is provided with a threaded hole matched with the screw rod, and the screw rod is connected to the inside of the threaded hole.

Preferably, the meshing wheel is a bevel gear, and the output end of the motor is vertically arranged with the meshing wheel.

Preferably, a transition part is further arranged between the bottom of the shell and the collecting cavity, the transition part is of a hollow round platform structure, the upper end of the transition part is connected with the periphery of the bottom of the shell, and the lower end of the transition part is connected with the periphery of the upper end of the collecting cavity.

Preferably, the length of the external thread of the screw rod is less than the height of the heating ring.

Preferably, the angle a ranges between 15 degrees and 30 degrees.

Compared with the prior art, the utility model discloses possess following beneficial effect:

through the heating circle that sets up helical structure inside the shell, and a plurality of air outlet designs have been seted up at heating circle inner wall, thereby when the inside hot-blast inlet tube of intercommunication of heating circle, hot-blast through hot-blast inlet tube and discharge through the air outlet, thereby at the dry wind of heating circle formation spiral, improve drying effect, the heating circle surface of heating simultaneously effectively carries out the drying to atomizing material, and make the material adhere to on the heating circle surface, improve drying effect, accelerate dry discharging efficiency, and the material that adheres to on heating circle surface is under the effect of scraper blade, peel off from the heating circle surface, and enter into under the action of gravity and collect the chamber, accomplish and collect, adopt the design of shell seal heating circle, and the circulating pipe effect, thereby make the wind of heating continuously flow in the shell, hot gas waste has been solved, the problem of drying cost increase.

Drawings

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

FIG. 2 is a schematic structural view of the heating ring and the housing of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a housing; 2. heating a ring; 21. an air outlet; 22. a flow guiding arc; 3. a squeegee; 31. a bearing; 32. a screw rod; 33. an engaging wheel; 34. a motor; 35. a collection chamber; 4. a transition section; 5. a hot air inlet pipe.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a hot air distributor for a closed circulation spray drying system comprises a shell 1, a heating ring 2 is fixedly arranged at the upper end inside the shell 1, the heating ring 2 is of a double-layer hollow spiral structure, a hot air leading-in pipe 5 is communicated with one end of the heating ring 2, the hot air leading-in pipe 5 is arranged outside the shell 1, a plurality of air outlets 21 are formed in the inner wall of the heating ring 2, one side of each air outlet 21 is positioned inside the heating ring 2 and provided with a flow guide arc 22, an angle a is formed between the output direction of the air outlets 21 and the tangent line of the inner wall of the heating ring 2, a scraping plate 3 is attached to the inner wall of the heating ring 2, the scraping plate 3 is also of a spiral structure, the outer side of the scraping plate 3 is attached to the inner wall of the heating ring 2, a bearing 31 is fixedly arranged at the position of the center line of the shell 1 at one end of the scraping plate 3, a lead screw 32 is connected to the center of the bearing 31, the upper end of the lead screw 32 is rotatably connected with the top of the shell 1, the lower extreme of lead screw 32 is equipped with meshing wheel 33, and the lower extreme of shell 1 is equipped with collection chamber 35, and the surface that collection chamber 35 upper end one side is located shell 1 has set firmly motor 34, and motor 34's output and meshing wheel 33 intermeshing are equipped with the circulating pipe on one side of the outside of shell 1, and the upper and lower both ends of circulating pipe communicate the upper end and the bottom of shell 1 respectively, and the pan feeding mouth has been seted up at the upper end center of shell 1.

The inner wall center of bearing 31 is equipped with the screw hole that lead screw 32 matches each other, and lead screw 32 connects in the inside of screw hole, conveniently rotates through lead screw 32 to when driving bearing 31 up-and-down motion, drive scraper blade 3 up-and-down motion scrapes the heating collar 2 surface and gets.

The meshing wheel 33 is a bevel gear, and the output end of the motor 34 and the meshing wheel 33 are vertically arranged, so that the angle between the motor 34 and the screw rod 32 can be conveniently changed.

Still be equipped with transition portion 4 between the bottom of shell 1 and the collection chamber 35, transition portion 4 is hollow round platform structure, and the upper end of transition portion 4 is connected all around with the bottom of shell 1, and the lower extreme of transition portion 4 is connected all around with the upper end of collecting chamber 35, and transition portion 4 of round platform structure conveniently collects the material.

The external thread length of the screw rod 32 is smaller than the height of the heating ring 2, so that the problem that the scraper 3 is separated from the heating ring 2 when the bearing 31 slides outside the screw rod 32 due to the fact that the screw rod 32 is too long is avoided.

The angle a ranges from 15 to 30 degrees and is set so that the material is delivered by the wind generated from the wind outlet 21 to form a spiral inside the heating ring 2.

The utility model discloses a theory of operation and use flow: by arranging the heating ring 2 with a spiral structure in the shell 1 and arranging a plurality of air outlets 21 on the inner wall of the heating ring 2, so that when the interior of the heating ring 2 is communicated with the hot air inlet pipe 5, the hot air passes through the hot air inlet pipe 5 and is discharged through the air outlet 21, thereby forming spiral drying air on the heating ring 2, improving the drying effect, simultaneously effectively drying the atomized material on the surface of the heating ring 2, and the material is attached to the surface of the heating ring 2, thereby improving the drying effect, accelerating the drying and discharging efficiency, the material attached to the surface of the heating ring 2 is stripped from the surface of the heating ring 2 under the action of the scraper 3, and enters the collection cavity 35 under the action of gravity to finish collection, the design of the sealing heating ring 2 of the shell 1 and the action of a circulating pipe are adopted, thus, heated air continuously flows in the shell 1, and the problems of hot air waste and drying cost increase are solved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hot air distributor for closed circulation spray drying system, its characterized in that, includes shell (1), the inside upper end of shell (1) has set firmly heating ring (2), heating ring (2) are double-deck hollow helical structure, the one end of heating ring (2) leads to has hot-blast induction pipe (5), hot-blast induction pipe (5) are established in the outside of shell (1), a plurality of air outlets (21) have been seted up to the inner wall of heating ring (2), one side of air outlet (21) is located the inside of heating ring (2) and is equipped with water conservancy diversion arc (22), and is a plurality of form angulation an between the output direction of air outlet (21) and the inner wall tangent line of heating ring (2), the inner wall laminating of heating ring (2) has scraper blade (3), scraper blade (3) are helical structure equally, the outside of scraper blade (3) laminates with the inner wall of heating ring (2), the one end of scraper blade (3) is located the central line position of shell (1) and has set firmly bearing (31), the center of bearing (31) is connected with lead screw (32), the upper end of lead screw (32) rotates with the top of shell (1) and links to each other, the lower extreme of lead screw (32) is equipped with meshing wheel (33), the lower extreme of shell (1) is equipped with collects chamber (35), the surface that is located shell (1) on one side of collection chamber (35) upper end has set firmly motor (34), the output of motor (34) with meshing wheel (33) intermeshing, outside one side of shell (1) is equipped with the circulating pipe, the upper and lower both ends of circulating pipe communicate respectively the upper end and the bottom of shell (1), the pan feeding mouth has been seted up at the upper end center of shell (1).

2. The hot air distributor for a closed cycle spray drying system of claim 1, wherein; the center of the inner wall of the bearing (31) is provided with a threaded hole matched with the screw rod (32), and the screw rod (32) is connected to the inside of the threaded hole.

3. The hot air distributor for a closed cycle spray drying system of claim 1, wherein: the meshing wheel (33) is a bevel gear, and the output end of the motor (34) is vertically arranged with the meshing wheel (33).

4. The hot air distributor for a closed cycle spray drying system of claim 1, wherein: still be equipped with transition portion (4) between the bottom of shell (1) and collection chamber (35), transition portion (4) are hollow round platform structure, the upper end of transition portion (4) with the bottom of shell (1) is connected all around, the lower extreme of transition portion (4) is connected all around with the upper end of collecting chamber (35).

5. The hot air distributor for a closed cycle spray drying system of claim 1, wherein: the length of the external thread of the screw rod (32) is less than the height of the heating ring (2).

6. The hot air distributor for a closed cycle spray drying system of claim 1, wherein: the angle a ranges between 15 degrees and 30 degrees.