CN106839729A - A kind of tunnel type powder heating, drying device - Google Patents

Abstract

The invention discloses a tunnel-type powder heating and drying device, which includes a frame, a conveying device, a tunnel oven, a feeding device and a discharging device. Belt and driving device, the feeding device includes a feeding hopper, the feeding hopper is arranged above the frame at the feeding end of the conveying device, the discharging device includes a discharging hopper, and the discharging hopper is arranged at the outlet of the conveying device Below the frame at the material end, the tunnel oven is set on the frame above the high-temperature-resistant conveyor belt, and is located between the feeding hopper and the discharge hopper, and a heating device is arranged in the tunnel oven. The above-mentioned tunnel-type powder heating and drying device has a closed and compact structure, which can effectively avoid the pollution of the external environment caused by the operation of the powder drying process. At the same time, it has a high degree of automation, the thickness of the drying powder is adjustable, and the drying heating temperature is adjustable. , High drying efficiency and good drying effect.

Description

A tunnel type powder heating and drying device

technical field

The invention belongs to powder material drying treatment technology, in particular to a tunnel type powder material heating and drying device.

Background technique

Drying treatment equipment refers to a combination of a series of mechanical equipment that dries moisture or other liquids on the surface of objects through certain technical means. From the characteristics of drying technology, it can be divided into ultraviolet drying equipment, infrared drying equipment, electromagnetic drying equipment, hot air drying equipment, which are widely used in various mechanical equipment, powder processing, and video drying applications.

Most of the existing rotary dryers adopt the simple drum drying method. Due to its strong adaptability to materials, it can be used in various drying occasions, and the operation is simple and reliable, and has been widely used. However, in actual use, rotary dryers generally have problems such as high power consumption, large equipment size, serious environmental pollution, poor controllability, and time-consuming equipment cleaning.

Contents of the invention

The purpose of the present invention is to provide a tunnel-type powder heating and drying device, which has the characteristics of compact structure, low power consumption, environmental protection and easy cleaning, so as to solve the above-mentioned problems existing in the powder drying equipment in the prior art.

For reaching this purpose, the present invention adopts following technical scheme:

A tunnel-type powder heating and drying device, which includes a frame, a conveying device, a tunnel oven, a feeding device and a discharging device, wherein,

The conveying device is arranged on the frame, which includes a high temperature resistant conveying belt and a driving device,

The feeding device includes a feeding hopper, and the feeding hopper is arranged above the frame of the feeding end of the conveying device, and the discharging device includes a discharging hopper, and the discharging hopper is arranged on the frame of the discharging end of the conveying device. below,

The tunnel oven is arranged on the frame above the high temperature resistant conveyor belt, and is located between the feeding hopper and the discharge hopper, and a heating device is arranged in the tunnel oven.

In particular, two ends of the tunnel oven are correspondingly installed with ventilation fans for controlling the temperature in the oven.

In particular, a height-adjustable powder scraper for flattening the powder is installed at the feed inlet of the tunnel oven.

In particular, the frame is provided with a brush for cleaning the sticky material on the surface of the high-temperature-resistant conveyor belt, and a waste hopper is fixed on the frame directly below the brush.

In particular, the brush is rotatably arranged on the frame, and it shares a set of driving device with the high temperature resistant conveyor belt.

In particular, the driving device includes a driving roller, a driven roller, a driving sprocket, a first driven sprocket, a second driven sprocket and a driving motor, and the driving roller and the driven roller are respectively rotatably mounted on At both ends of the frame, the high-temperature-resistant conveyor belt is set between the driving roller and the driven roller, and the driving roller and the first driven sprocket are coaxially installed on the driving roller. Two driven sprockets are arranged coaxially with the brush, a transmission chain is connected between the first driven sprocket and the second driven sprocket, and the drive motor drives the driving sprocket and the first driven sprocket synchronous rotation, the first driven sprocket drives the second driven sprocket to rotate.

In particular, the heating device includes an upper row of infrared heating tubes and a lower row of infrared heating tubes correspondingly arranged in the tunnel oven, the upper row of infrared heating tubes is arranged on the upper part of the tunnel oven, and the lower row of infrared heating tubes The pipe is arranged under the high temperature resistant conveyor belt located on the upper layer.

In particular, a triangular material distribution plate is arranged in the hopper, which can perform preliminary diversion of the powder to be dried and prevent the powder from concentrating and accumulating.

The beneficial effect of the present invention is that compared with the prior art, the structure of the tunnel-type powder heating and drying device is closed and compact, which can effectively avoid the pollution of the external environment caused by the operation of the powder drying process, and at the same time has a high degree of automation, The thickness of the drying powder is adjustable, the drying heating temperature is adjustable, the drying efficiency is high, and the drying effect is good.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the tunnel-type powder material heating and drying device provided in Embodiment 1 of the present invention;

Fig. 2 is a sectional view of the tunnel-type powder heating and drying device provided in Embodiment 1 of the present invention;

Fig. 3 is a top view of the tunnel-type powder heating and drying device provided in Embodiment 1 of the present invention;

Fig. 4 is a partial enlarged view of A in Fig. 3 .

detailed description

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

Please refer to Figures 1 to 4, in this embodiment, a tunnel-type powder heating and drying device includes a frame 1, a conveying device, a tunnel oven 2, a feeding hopper 3 and a hopper 4, and the conveying device includes The high temperature resistant conveyor belt 5 arranged on the frame 1 is provided with a driving device. The feeding hopper 3 is arranged above the frame of the feed end of the high-temperature-resistant conveyor belt 5, the discharge hopper 4 is arranged below the frame 1 of the discharge end of the high-temperature-resistant conveyor belt 5, and the tunnel oven 2 It is arranged on the frame 1 above the high temperature resistant conveying belt 5 and between the feeding hopper 3 and the outlet hopper 4 , and the tunnel oven 2 is provided with a heating device.

The heating device includes an upper row of infrared heating tubes 6 and a lower row of infrared heating tubes 7 which are correspondingly arranged in the tunnel oven 2, the upper row of infrared heating tubes 6 is arranged on the upper part of the tunnel oven 2, and the lower row The infrared heating tube 7 is arranged under the high-temperature-resistant conveying belt 5 positioned at the upper layer, and the two ends of the tunnel oven are correspondingly equipped with a front ventilation fan 8 and a rear ventilation fan 9, and the powder drying heating temperature in the tunnel oven 2 is determined by two A ventilation fan and an infrared heating tube are jointly controlled.

A powder scraper 10 for flattening the powder is installed at the feed port of the tunnel oven 2, and two long holes are correspondingly opened on both sides of the powder scraper 10, through the long holes and fixing bolts The powder scraper 10 is fixed on the tunnel oven 2, and the fixed height of the powder scraper 10 can be adjusted by adjusting the position of the fixing bolt in the long hole, thereby adjusting the flattened thickness of the powder.

The frame 1 is rotatably provided with a brush 11 for cleaning the sticky material on the surface of the high temperature resistant conveying belt, and the frame 1 is fixed with a waste hopper 12 directly below the brush 11. The brush 11 is located below the lower high temperature resistant conveyor belt 5, and it shares a set of driving device with the high temperature resistant conveyor belt 5. Described driving device comprises driving drum 13, driven drum 14, driving sprocket 15, first driven sprocket 16, second driven sprocket 17 and drive motor, described driving drum 13 and driven drum 14 can respectively Rotatably installed at both ends of the frame 1, the high temperature resistant conveyor belt 5 is set between the driving roller 13 and the driven roller 14, and the driving roller 13 is coaxially equipped with a driving sprocket 15 and a The first driven sprocket 16, the second driven sprocket 17 is coaxially arranged with the brush 11, and a transmission chain is connected between the first driven sprocket 16 and the second driven sprocket 17, The driving motor drives the driving sprocket 15 and the first driven sprocket 16 to rotate synchronously, and the first driven sprocket 16 drives the second driven sprocket 17 to rotate, and then drives the hairbrush 11 to rotate, so that the sticking on the The powder on the high temperature resistant conveyor belt 5 is discharged through the discarding hopper 12 under the action of the brush 11 .

The feeding hopper 3 is provided with a triangular material distribution plate 18, which can preliminarily divide the powder to be dried and prevent the powder from concentrating and accumulating.

When working, the high temperature resistant conveying belt 5 is driven by the driving roller 13 and the driven roller 14 to rotate, and the powder to be dried is evenly distributed on the high temperature resistant conveying belt 5 through the feeding hopper 3 by its own gravity, and at the same time, the powder to be dried is Under the action of the powder scraper 10, it is evenly flattened to a specified thickness on the high-temperature-resistant conveyor belt 5, and the high-temperature-resistant conveyor belt 5 moves the powder to be dried into the tunnel oven 2. When the powder to be dried moves to the upper row When the position between the infrared heating tube 6 and the lower row of infrared heating tubes 7 is reached, the high temperature resistant conveying belt 5 stops rotating. After heating for a specific time, the high temperature resistant conveying belt 5 continues to drive the heated and dried powder through its own gravity. It is output to the next link through the discharge hopper 4, and the powder adhered to the high-temperature-resistant conveying belt 5 is cleaned by the brush 11 and discharged and recovered through the discard hopper 12.

The above embodiments have only set forth the basic principles and characteristics of the present invention, the present invention is not limited by the above-mentioned examples, and on the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and changes, and these changes and changes all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. a kind of tunnel type powder heating, drying device, it includes frame, conveying device, tunnel oven, feed device and discharging Device, it is characterised in that

The conveying device is arranged in the frame, and it includes high temperature resistant belt conveyor and drive device,

The feed device includes feeding funnel, and the feeding funnel is arranged at the frame top of the conveying device feed end, described Drawing mechanism includes discharge bucket, and the discharge bucket is arranged at the lower section of the frame of the conveying device discharge end,

The tunnel oven is arranged in the frame above the high temperature resistant belt conveyor, and positioned at the feeding funnel with it is described go out Between hopper, heater is provided with the tunnel oven.

2. tunnel type powder heating, drying device according to claim 1, it is characterised in that the two ends of the tunnel oven Correspondence is provided with the draft fan for controlling oven temperature.

3. tunnel type powder heating, drying device according to claim 1, it is characterised in that the charging of the tunnel oven The height-adjustable powder scraper plate for shakeouing powder is installed at mouthful.

4. tunnel type powder heating, drying device according to claim 1, it is characterised in that be provided with use in the frame In the hairbrush of cleaning high temperature resistant belt conveyor surface sizing, rejected material bucket is fixed with the frame immediately below the hairbrush.

5. tunnel type powder heating, drying device according to claim 4, it is characterised in that the hairbrush rotationally sets It is placed in the frame, it shares a set of drive device with the high temperature resistant belt conveyor.

6. tunnel type powder heating, drying device according to claim 5, it is characterised in that the drive device includes master Dynamic roller, follower rollers, drive sprocket, the first driven sprocket, the second driven sprocket and motor, the drive roll and from Dynamic roller is rotatably installed on the two ends of the frame respectively, the high temperature resistant belt conveyor be placed on the drive roll and from Between dynamic roller, be coaxially installed with drive sprocket and the first driven sprocket on the drive roll, second driven sprocket with The hairbrush is coaxially disposed, and driving chain, the motor are connected between first driven sprocket and the second driven sprocket Drive sprocket and the first driven sprocket synchronous axial system, first driven sprocket is driven to drive the second driven sprocket to rotate.

7. tunnel type powder heating, drying device according to claim 1, it is characterised in that it is right that the heater includes Upper row's infrared ray heating tube and lower row's infrared ray heating tube in the tunnel oven, upper row's infrared heating should be arranged at Pipe is arranged at the top in tunnel oven, and lower row's infrared ray heating tube is arranged at the high temperature resistant belt conveyor positioned at upper strata Lower section.

8. tunnel type powder heating, drying device according to claim 1, it is characterised in that be provided with the feeding funnel Triangle cutting plate.