WO2015058446A1

WO2015058446A1 - Drying device having online cleaning mechanism

Info

Publication number: WO2015058446A1
Application number: PCT/CN2013/089707
Authority: WO
Inventors: 董淑雷
Original assignee: 上海金匙环保科技股份有限公司
Priority date: 2013-10-22
Filing date: 2013-12-17
Publication date: 2015-04-30
Also published as: CN104549113A; CN104549113B

Abstract

A drying device (100) having an online cleaning mechanism comprises: a screw conveyor type reaction cylinder (10) and a corresponding cleaning mechanism. The cleaning mechanism comprises a cleaning brush roller and a transmission mechanism (40) for driving the cleaning brush roller to rotate. The cleaning brush roller comprises a transmission shaft (30) and a screw cleaning portion (32) disposed on the transmission shaft (30). Rotating directions of the cleaning brush roller and the reaction cylinder (10) are consistent. Rotating tangential velocities of the cleaning brush roller and the reaction cylinder (10) are equal. In the drying device, when the screw type cleaning mechanism is used, the brush roller of the cleaning mechanism and a screw conveyor plate (22) do not interfere with each other, so as to implement an online cleaning function.

Description

Drying device with online cleaning mechanism

The present invention relates to the field of drying equipment, and more particularly to a drying apparatus having an online cleaning mechanism. Background technology

Drying equipment is a device that uses heating to achieve physical or chemical reactions of materials, such as polymerization, condensation, distillation, melting, dehydration, cracking, esterification, book melting, and the like.

Typically, the drying apparatus includes an inlet and outlet device, a rotatable reaction cartridge, a heating device that provides heat to the reaction cartridge body, and a drive mechanism for driving the rotation of the reaction cartridge. Wherein, in the prior art, a spiral conveying plate for conveying materials is disposed on the inner wall of the reaction cylinder, and for the screw conveying type drying device, a certain amount of material is inevitably attached to the inner wall of the reaction cylinder, and if the adhered material reaches a certain level After the thickness, it will directly affect the heat transfer efficiency of the drying device, so it is necessary to remove the adhered materials on the inner wall in time to ensure that the drying equipment can operate normally. However, in the prior art, due to the existence of the structure of the spiral conveying plate inside the reaction cylinder, it is difficult to remove the material adhering to the drying equipment in the production process of the drying equipment, bringing the production efficiency and operation performance of the equipment. Negative Effects.

In view of this, it is highly desirable to provide a drying apparatus having an in-line clearing function to solve the above problems.

Summary of the invention

The object of the present invention is to provide a drying device with an on-line cleaning mechanism, which adopts a spiral cleaning mechanism and cooperates with the reaction cylinder to perform the same direction and the same tangential speed rotation, thereby realizing online cleaning of materials in the screw conveying drying device. Features.

In order to achieve the above object, an embodiment of the present invention provides a drying apparatus having an online cleaning mechanism. The utility model comprises: a reaction cylinder body, a reaction chamber is formed therein, a conveying plate is protruded from the inner wall of the reaction cylinder, and a first gap is provided between two adjacent conveying plates; and the heat in the reaction cylinder is provided a heating mechanism; a driving mechanism for driving the reaction cylinder to rotate about its axis; and a cleaning mechanism, the cleaning mechanism including a cleaning brush roller and a transmission mechanism for driving the rotation of the cleaning brush roller, the cleaning brush The roller includes a transmission shaft and a spiral cleaning portion disposed on the transmission shaft, the spiral cleaning portion has a second gap between adjacent threads, and the spiral conveying plate is located in the second gap and is located in the same The number of threads of the spiral cleaning portion in a first gap is equal to the diameter ratio of the reaction cylinder and the cleaning brush roller, and the rotation direction of the cleaning brush roller and the reaction cylinder when the reaction cylinder and the cleaning mechanism rotate In agreement, the cleaning brush roller and the reaction cylinder have the same tangential speed.

As a further improvement of the present invention, the cleaning mechanism is driven to rotate by the force generated by the rotation of the reaction cylinder.

As a further improvement of the present invention, a driving gear is disposed on the central shaft, a driven gear is disposed on the driving shaft, and the driving gear and the driven gear are disposed between the driving gear and the driven gear. The intermediate gear of the gear meshing.

As a further improvement of the present invention, the position of the cleaning brush roller is higher than the position of the central axis. As a further improvement of the present invention, the position of the sweeping brush roller is located at the top of the inner wall of the reaction cylinder.

As a further improvement of the present invention, the cleaning mechanism includes a holder that is sleeved on the central shaft, the cleaning brush roller is disposed at one end of the holder, and the other end of the holder is provided with a weight mechanism .

As a further improvement of the present invention, the spiral cleaning portion of the cleaning brush roller is composed of a plurality of cleaning members arranged in a spiral shape on the transmission shaft.

As a further improvement of the present invention, the cleaning member includes a connecting arm formed extending outward from the transmission shaft and a squeegee disposed at an end of the connecting arm.

As a further improvement of the present invention, the total length of the connecting arm and the squeegee is greater than the distance between the drive shaft and the inner wall of the reaction cylinder.

As a further improvement of the present invention, the connecting arm is made of a flexible material. Compared with the prior art, the drying device of the invention adopts a spiral cleaning mechanism, and rotates in the same direction and the same tangential speed with the reaction cylinder, thereby ensuring that the brush roller and the spiral conveying plate of the cleaning mechanism do not interfere with each other, and the material The cleaning work can be synchronized with the production process of the drying device, thereby realizing the online cleaning function of the screw conveying drying device, and the cleaning effect is good. DRAWINGS

Figure 1 is a cross-sectional view showing a reaction cylinder in a drying apparatus according to an embodiment of the present invention;

2 is a cross-sectional view of a reaction cylinder in a drying apparatus according to another embodiment of the present invention; FIG. 3 is a schematic structural view of a cleaning mechanism in the drying apparatus of the embodiment shown in FIG. 2; and FIG. 4 is a drying apparatus according to an embodiment of the present invention; Schematic diagram of the structure of the transmission mechanism. detailed description

The invention will be described in detail below with reference to specific embodiments shown in the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing an embodiment of a drying apparatus having an in-line cleaning mechanism of the present invention. The drying apparatus 100 having an in-line cleaning mechanism includes a reaction cylinder 10 having a high temperature reaction chamber that is driven by a corresponding driving mechanism and rotates along its axis. The apparatus further includes a necessary feeding mechanism and a discharging mechanism. And a heating device for providing heat required for a high temperature environment in the reaction chamber. Since the main improvement of the present invention is in the cleaning mechanism, only the main components of the drying apparatus are shown. As shown in FIG. 1 , in the embodiment, the inner wall of the reaction cylinder 10 is formed with a conveying plate 22 for conveying the material in the reaction chamber, which is spiral, and has a first gap 24 between the adjacent conveying plates 22 . . A central shaft 20 that rotates together with the reaction cylinder 10 is disposed in the reaction cylinder, and the cleaning mechanism is supported by the central shaft 20. The cleaning mechanism includes a cleaning brush roller and a transmission mechanism 40 for driving the rotation of the cleaning brush roller, and the cleaning brush roller includes a transmission shaft 30 and a spiral cleaning portion 32 disposed on the transmission shaft 30, the spiral There is a second gap 34 between two adjacent threads of the cleaning portion 32, the conveying plate 22 is located in the second gap 34, and the number of threads of the spiral cleaning portion 32 located in the same first gap 24 is equal to The diameter ratio of the reaction cylinder 10 and the cleaning brush roller, when the reaction cylinder and the cleaning mechanism rotate, the cleaning brush roller and the reaction cylinder 10 rotate in the same direction, and the cleaning brush roller and the cleaning roller The rotational tangential speed of the reaction cylinder 10 is equal.

In the specific embodiment, it is assumed that the diameter of the cleaning brush roller is one-third of the diameter of the entire reaction cylinder. Therefore, in order to ensure the cleaning of the wire, the cleaning brush roller and the conveying plate 22 in the reaction cylinder body do not interfere with each other, Ensure that the two are always in a synchronous rotation state, SP, the angle of rotation of the cleaning brush roller should be 1080 ° during the entire rotation of the reaction cylinder through 360 °. Further, the number of threads of the spiral cleaning portion 32 in the same first gap 24 is always maintained at three. Of course, it is worth mentioning that in order to make the cleaning effect better, the present invention allows the diameter of the sweeping brush to be processed to be slightly larger than one third of the diameter of the reaction cylinder.

Referring to Figures 2 and 3, it is another embodiment of the drying apparatus having an in-line cleaning mechanism of the present invention. The difference from the above embodiment is that the spiral cleaning portion 32' of the cleaning brush roller in the pyrolysis reaction device 100' of the present embodiment is a spiral shape that is discontinuously formed, but is arranged in a spiral shape on the transmission. The sweeping parts on the shaft are composed. The so-called "arranged in a spiral shape" means that each cleaning member extends outwardly from the transmission shaft 30 in the diameter direction thereof. In the present embodiment, the cleaning member 32a to the cleaning member 32e just rotates 360°, and the phase The distance between the two adjacent cleaning members in the horizontal direction is equal, BP, assuming that the distance between the cleaning member 32a and the cleaning member 32e in the horizontal direction is S, the cleaning member 32a and the cleaning member 32b, the cleaning member 32b and the cleaning member 32c, the cleaning member 32c and the cleaning member 32d, the distance between the cleaning member 32d and the cleaning member 32e in the horizontal direction are both S/4; and, the cleaning member 32a and the cleaning member 32b, the cleaning member 32b and the cleaning member 32c, are cleaned The angle between the member 32c and the cleaning member 32d, the direction in which the cleaning member 32d and the cleaning member 32e extend are both 90°, and the plurality of cleaning members thus designed are arranged in a spiral shape on the entire structure. Of course, the above is only an example, and the spacing and angle of the adjacent cleaning elements are not limited.

With continued reference to Figure 3, in the present embodiment, the cleaning member includes a connecting arm 320 extending outwardly from the drive shaft 30 and a squeegee 322 disposed at an end of the connecting arm 320. Preferably, in order to improve the cleaning effect, in the embodiment, the total length of the connecting arm 320 and the squeegee 322 is greater than the distance between the transmission shaft 30 and the inner wall of the reaction cylinder. Wherein, the connecting arm 322 is made of a flexible material, so that the scraper 322 is prevented from being damaged due to excessive frictional strength during the rotation of the drive shaft 30.

Referring to FIG. 1, FIG. 2 and FIG. 4, in the present embodiment, in order to secure the cleaning mechanism The cleaning effect is better, and the position of the cleaning brush roller is located at the top of the inner wall of the reaction cylinder 10. Specifically, the cleaning mechanism includes a retainer 46 that is sleeved on the central shaft 20. A sweeping roller having a drive shaft 30 is disposed at one end of the retainer 46, and the other end of the retainer 46 is disposed. There is a weight mechanism 50. Since the weight of the weight mechanism 50 is much larger than that of the cleaning brush roller, the cleaning brush roller can always be kept at the top of the inner wall of the reaction cylinder 10, so that the cleaning brush roller will not be lower in the reaction cylinder. The material in the position is in direct contact, which ensures better material cleaning. Of course, in other embodiments of the present invention, the position of the cleaning brush roller may also be slightly offset from the top of the inner wall of the reaction cylinder, and it is only necessary to ensure that its position is higher than the position of the central axis 20.

In a specific embodiment of the present invention, the cleaning mechanism is driven to rotate by the power generated by the rotation of the reaction cylinder itself, without additionally adding a power mechanism to drive the rotation thereof. Specifically, in the embodiment, the central shaft 20 is provided with a transmission portion 41 integrally formed with the reaction cylinder body. The transmission portion drives a driving gear 42 to rotate, and the transmission shaft 30 is provided with a driven gear. 46. An intermediate gear 43 meshing with the driving gear 42 and the driven gear 46 is disposed between the driving gear 42 and the driven gear 46. In this way, during the rotation of the reaction cylinder, the cleaning brush roller can also rotate at a certain speed with the reaction cylinder to realize the online cleaning function. Of course, in other embodiments, the manner of implementing the brush roller drive is not limited thereto, such as a sprocket, a pulley, and the like.

In summary, the drying device of the present invention adopts a spiral cleaning mechanism, and cooperates with the reaction cylinder to perform the same direction, and rotates at the same tangential speed, thereby ensuring that the brush roller and the spiral conveying plate of the cleaning mechanism do not interfere with each other, and the material cleaning work is performed. It can be synchronized with the production process of the drying device, thereby realizing the online cleaning function of the screw conveying type drying device, and the cleaning effect is good.

It should be understood that, although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution. The description of the specification is merely for the sake of clarity, and those skilled in the art should The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

Claims

claims

1. A drying equipment with an online cleaning mechanism, characterized in that the drying equipment includes: a reaction cylinder with a reaction chamber formed in it, a conveyor plate protruding from the inner wall of the reaction cylinder, and two adjacent ones. There is a first gap between the conveying plates;

A heating mechanism for providing heat within the reaction cylinder;

A driving mechanism for driving the reaction cylinder to rotate around its axis; and

Cleaning mechanism, the cleaning mechanism includes a cleaning brush roller and a transmission mechanism for driving the cleaning brush roller to rotate, the cleaning brush roller includes a transmission shaft and a spiral cleaning part provided on the transmission shaft, the spiral cleaning part There is a second gap between two adjacent threads of the part, the spiral conveying plate is located in the second gap, and the number of threads of the spiral cleaning part located in the same first gap is equal to the reaction cylinder and cleaning brush The diameter ratio of the rollers is such that when the reaction cylinder and the cleaning mechanism rotate, the rotation directions of the cleaning brush roller and the reaction cylinder are consistent, and the rotation tangential speeds of the cleaning brush roller and the reaction cylinder are equal.

2. The drying equipment with an online cleaning mechanism according to claim 1, characterized in that the cleaning mechanism is driven to rotate by the power generated by the rotation of the reaction cylinder.

3. The drying equipment with an online cleaning mechanism according to claim 2, wherein the reaction cylinder is provided with a central axis that rotates together with the reaction cylinder, and a driving gear is provided on the central axis. A driven gear is provided on the transmission shaft, and an intermediate gear meshing with the driving gear and the driven gear is provided between the driving gear and the driven gear.

4. The drying equipment with an online cleaning mechanism according to claim 1, characterized in that the position of the cleaning brush roller is higher than the position of the central axis.

5. The drying equipment with an online cleaning mechanism according to claim 4, characterized in that the position of the cleaning brush roller is located at the top of the inner wall of the reaction barrel.

6. The drying equipment with an online cleaning mechanism according to claim 5, characterized in that, the cleaning mechanism includes a cage that is sleeved on the central axis, and the cleaning brush roller is located at the end of the cage. One end and the other end of the cage are provided with a counterweight mechanism.

7. The drying equipment with an online cleaning mechanism according to claim 1, characterized in that: The spiral cleaning part of the cleaning brush roller is composed of a plurality of cleaning parts arranged in a spiral shape on the transmission shaft.

8. The drying equipment with an online cleaning mechanism according to claim 7, wherein the cleaning member includes a connecting arm extending outward from the transmission shaft and a scraper provided at the end of the connecting arm. plate.

9. The drying equipment with an online cleaning mechanism according to claim 8, characterized in that the total length of the connecting arm and the scraper is greater than the distance between the transmission shaft and the inner wall of the reaction cylinder.

10. The drying equipment with an online cleaning mechanism according to claim 9, characterized in that the connecting arm is made of flexible material.