CN213931829U

CN213931829U - Rotary dryer

Info

Publication number: CN213931829U
Application number: CN202022973078.5U
Authority: CN
Inventors: 钱其雯; 张飞雄; 安爱民; 朱文峰; 姚凌锋; 王杰; 韩天宇; 吴彩先
Original assignee: Inner Mongolia Shuangxin Polymer Materials Technology Research Institute Co ltd; Inner Mongolia Shuangxin Environment Friendly Material Co ltd
Current assignee: Inner Mongolia Shuangxin Polymer Materials Technology Research Institute Co ltd; Inner Mongolia Shuangxin Environment Friendly Material Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-10
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to a rotary dryer, which comprises a cylinder body (1), wherein a support piece (2) is arranged in the cylinder body (1), and a plurality of mounting holes (21) are arranged on the support piece (2) and used for mounting a heat exchange tube (3); the installation holes (21) are circumferentially arranged on the supporting piece (2), the cleaning connecting pipes (4) are arranged among the heat exchange pipes (3) which are farthest away, cleaning steel balls (5) are arranged in the cleaning connecting pipes (4), and the diameter of each cleaning steel ball (5) is smaller than that of each cleaning connecting pipe (4). The utility model discloses a rotary dryer can prevent effectively that the material from bonding on the heat transfer pipe outer wall.

Description

Rotary dryer

Technical Field

The utility model belongs to the technical field of the material processing, especially, relate to a rotary dryer.

Background

The existing rotary drying machine is provided with corresponding cleaning measures in the PVA material drying process for preventing a series of problems caused by the adhesion of materials on the inner wall of a cylinder body, for example, the rotary drying machine is stopped for cleaning after being dried for a period of time. However, the existing rotary dryer rarely protects the heat exchange tube, and in the drying process of the material, the heat exchange tube provides a heat source for drying, generally speaking, the temperature at the heat exchange tube is relatively highest, and the material is most likely to have the property change and is bonded on the outer wall of the heat exchange tube, so that the problem of poor drying effect is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary dryer solves the material bonding problem on the heat exchange tube outer wall of material drying process.

In order to achieve the purpose, the utility model provides a rotary dryer, which comprises a cylinder body, wherein a support piece is arranged in the cylinder body, and a plurality of mounting holes are arranged on the support piece for mounting heat exchange tubes;

the plurality of mounting holes are circumferentially arranged on the supporting piece, cleaning connecting pipes are arranged among the plurality of heat exchange pipes at the farthest distance, cleaning steel balls are arranged in the cleaning connecting pipes, and the diameter of each cleaning steel ball is smaller than that of each cleaning connecting pipe.

According to the utility model discloses an aspect, the barrel in still be equipped with the clearance trachea, clearance trachea one end is sealed, and the other end is connected with high pressurized air source, be equipped with at least one venthole on the clearance trachea, rotary dryer still include with the clearance trachea is connected and is used for the drive the rotatory drive arrangement of clearance trachea.

According to the utility model discloses an aspect follows barrel length direction, the inside at least one support frame that is equipped with of barrel, the clearance trachea supports on the support frame.

According to one aspect of the present invention, the gas provided by the high pressure gas source is water vapor or inert gas.

According to an aspect of the present invention, the supporting member has a passage for passing the material, the passage is disposed on the supporting member or is formed by the outer edge of the supporting member and the space between the inner walls of the cylinder.

According to the utility model discloses an aspect, support piece is for having the disc of side cut, be equipped with a plurality of support pieces along its length direction in the barrel, a plurality of support piece's side cut is in the upwards dislocation of circumference and arranges.

According to an aspect of the utility model, rotary dryer still include with the heat exchange tube links to each other and is used for providing the steam chamber of heat source to the heat exchange tube.

According to one aspect of the invention, the heat source in the steam chamber is a steam or other inert gas heat source.

According to the utility model discloses an aspect, still be equipped with the manhole among the support piece, the manhole sets up support piece's central point puts.

The utility model discloses a rotary dryer is equipped with between the adjacent heat exchange tube and cleans the takeover, cleans and is equipped with the diameter in the takeover and is less than the steel ball that cleans of cleaning the takeover. So, can utilize the round trip of cleaning the steel ball to strike corresponding heat exchange tube at the in-process of the rotatory dry material of barrel to can avoid the material to bond on the heat exchange tube outer wall. Preferably, the cleaning connecting pipe is connected between the heat exchange pipes which are farthest away, so that the cleaning steel ball can obtain larger impact force, and the cleaning effect is improved.

The utility model discloses a rotary dryer can clear up the trachea through the drive arrangement drive and rotate, lets in high-pressure gas through high pressurized air source in to clearing up the trachea simultaneously, and then gaseous blowout in can following the venthole, plays clearance effect to barrel inner wall or heat exchange tube outer wall, avoids the material because the too high bonding of drying temperature is on barrel inner wall or heat exchange tube outer wall. In the present invention, the gas provided by the high pressure gas source is steam or inert gas. The injection of high-pressure steam is also beneficial to reducing the methanol content of the PVA material and improving the whiteness of the material.

Drawings

Fig. 1 schematically shows an internal structure view of a rotary dryer according to the present invention;

fig. 2 schematically shows an internal structure of a rotary dryer according to the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the utility model provides a rotary dryer, including barrel 1, be equipped with support piece 2 in the barrel 1, be equipped with mounting hole 21 on the support piece 2 and be used for installing heat exchange tube 3, steam chamber 10 is connected to the one end of heat exchange tube 3 and provides the heat source for heat exchange tube 3, and the heat source is vapor or other gaseous heat sources. Therefore, heat can be supplied to the heat exchange tube 3 through the steam chamber 10, and the drying treatment of the materials in the barrel 1 is further realized.

In order to improve the drying efficiency, a plurality of mounting holes 21 are generally provided on the supporter 2 to enable the plurality of heat exchange pipes 3 to be mounted. As shown in fig. 1, according to an embodiment of the present invention, a plurality of mounting holes 21 are circumferentially arranged on the support member 2, and the distance between the mounting holes 21 is equal. According to the utility model discloses a conceive, be equipped with between the adjacent heat exchange tube 3 and clean takeover 4, clean takeover 4 and be equipped with the diameter and be less than the steel ball 5 that cleans of the internal diameter of cleaning takeover 4. So, can be at the in-process of the rotatory dry material of barrel 1, utilize the round trip striking corresponding heat exchange tube 4 of cleaning steel ball 5 to can avoid the material to bond on heat exchange tube 4 outer wall.

Preferably, the cleaning connecting pipe 4 is connected between the heat exchange pipes 4 which are farthest away, so that the cleaning steel ball 5 can obtain larger impact force, and the cleaning effect is improved.

As shown in fig. 2, the utility model discloses a rotary dryer still is equipped with clearance trachea 6 in the barrel 1, and 6 one end of clearance trachea are sealed, and the other end is connected with high pressurized air source 7, is equipped with at least one venthole 61 on the clearance trachea 6, and rotary dryer still includes and is connected with clearance trachea 6 and is used for driving the rotatory drive arrangement 8 of clearance trachea 6.

The utility model discloses a rotary dryer can be rotatory through 8 drive clearance trachea 6 of drive arrangement, lets in high-pressure gas in to clearance trachea 6 through high pressurized air source 7 simultaneously, and then gas can be followed and blowout in venthole 61, plays the clearance effect to the outer wall of 1 inner wall of barrel and heat exchange tube 3, avoids the material because the too high bonding of drying temperature is on 1 inner wall of barrel or heat exchange tube 3 outer wall. In the present invention, the gas provided by the high pressure gas source 7 is steam or inert gas. The injection of high pressure steam is also beneficial to reducing the methanol content of the PVA material, thereby improving the whiteness of the dried material.

According to the utility model discloses an embodiment, along 1 length direction of barrel, barrel 1 is inside to be equipped with at least one support frame 9, for example, respectively welds a support frame 9 at the left end of barrel 1, intermediate position and right-hand member, will clear up gas tube 6 and support on support frame 9. According to the utility model discloses an embodiment, support frame 9 includes the fixed part with 1 inner wall fixed connection of barrel and the support part that is connected with the fixed part, and the support part sets up to U type structure, and clearance trachea 6 supports on the support part. According to the utility model discloses an embodiment is equipped with the connection gear on the outer circumference of clearance trachea 6, and 8 drive connection gear of drive arrangement rotate in order to drive clearance trachea 6 rotatory.

The utility model discloses a support piece 2 has the passageway that the article of containing material passed through, and the passageway setting is in support piece 2 is last and/or constitute by the interval between 2 outward flanges of support piece and the barrel 1 inner wall.

According to the utility model discloses an embodiment, the passageway can set up on support piece 2 itself, for example, support piece 2 goes up the eccentric similar "D" font passageway that is equipped with and supplies the material to pass through, and a plurality of support piece 2 arrange in proper order in barrel 1, can carry out the dislocation with the passageway along circumference and arrange, so can guide the material to flow in barrel 1 including, prolongs the dwell time of material in equipment to ensure drying effect.

According to the second embodiment of the present invention, the passage for the material to pass through may also be formed by the space between the outer side of the support member 2 and the inner wall of the cylinder 1. For example, according to an embodiment of the present invention, the supporting member 2 is provided in a circular plate shape having a cut edge, and at this time, a gap between the cut edge of the supporting member 2 and the inner wall of the cylinder 1 serves as a passage through which the material passes. Along feed end to discharge end direction, be equipped with a plurality of support piece 2 in the barrel 1 to a plurality of support piece 2's side cut is arranged at the dislocation of circumference, preferably arranges at equidistant angle. That is to say, along the axial of barrel 1, a plurality of support piece 2's side cut is along clockwise or anticlockwise rotatory certain angle in proper order, according to the utility model discloses an embodiment, the position that the side cut of the support piece 2 of the leftmost is located in the definition barrel 1 is 0, and the side cut of second support piece 2 is for following the 30 of anticlockwise, and the third is 60 of anticlockwise, analogizes in proper order.

The utility model discloses a support piece 2 sets up to the disc form that has the side cut to each support piece 2's side cut staggers each other, so more makes things convenient for the flow of material, avoids the material to pile up for a long time together, improves the flow route of material, is favorable to promoting drying effect.

The utility model discloses a support piece 2 is last still to be equipped with access hole 2a, according to the utility model discloses an embodiment, access hole 2a sets up the circular through-hole that puts to the central point at support piece 2 to can be when equipment breaks down or regularly maintain equipment through this access hole by the manual work.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A rotary dryer comprises a cylinder body (1), and is characterized in that a supporting piece (2) is arranged in the cylinder body (1), and a plurality of mounting holes (21) are formed in the supporting piece (2) and used for mounting heat exchange tubes (3);

the installation holes (21) are circumferentially arranged on the supporting piece (2), the cleaning connecting pipes (4) are arranged among the heat exchange pipes (3) which are farthest away, cleaning steel balls (5) are arranged in the cleaning connecting pipes (4), and the diameter of each cleaning steel ball (5) is smaller than that of each cleaning connecting pipe (4).

2. A rotary dryer according to claim 1, wherein the cylinder (1) is further provided with a cleaning air pipe (6), one end of the cleaning air pipe (6) is closed, the other end of the cleaning air pipe is connected with a high-pressure air source (7), the cleaning air pipe (6) is provided with at least one air outlet (61), and the rotary dryer further comprises a driving device (8) connected with the cleaning air pipe (6) and used for driving the cleaning air pipe (6) to rotate.

3. A rotary dryer according to claim 2 wherein at least one support frame (9) is provided inside the drum (1) along the length of the drum (1), the cleaning air pipe (6) being supported on the support frame (9).

4. A rotary dryer according to claim 2 or 3 wherein the gas provided by the high pressure gas source (7) is steam or an inert gas.

5. A rotary dryer according to claim 1, characterized in that the support (2) has a passage for the passage of the contents, which passage is provided on the support (2) and/or is formed by a spacing between the outer edge of the support (2) and the inner wall of the drum (1).

6. The rotary dryer according to claim 5, wherein the support member is in the form of a circular plate having cut edges, and a plurality of support members (2) are provided in the drum (1) along the length thereof, the cut edges of the plurality of support members (2) being arranged in a circumferentially offset manner.

7. A rotary dryer according to claim 1 further comprising a steam chamber (10) in communication with the heat exchange tube (3) for providing a heat source thereto.

8. The rotary dryer according to claim 7, characterized in that the heat source in the steam chamber (10) is a water vapor or other gas heat source.

9. A rotary dryer according to claim 1, characterized in that a manhole (2a) is also provided in the support (2), the manhole (2a) being arranged in a central position of the support (2).