CN201964749U - Self-cleaning drying roller of vacuum pulsating dryer - Google Patents

Abstract

The utility model relates to the field of an ancillary component of a dryer for a food service industry, in particular to a roller of a vacuum pulsating dryer. The roller comprises a barrel type inner roller (9), a barrel type outer roller (1) and a drying roller cover component, wherein a heating medium circulating channel (16) is formed on the outer surface of the barrel type inner roller (9); and a self-cleaning device supported by a support is formed in the roller, and comprises a rotating shaft (6) and a cleaning brush (10) with a counterweight body (4) connected on the rotating shaft (6). The roller can automatically scrape material adhered on the inner surface of the drying roller during the drying process, thus effectively improving the drying efficiency and the drying quality of the roller dryer.

Description

Self-cleaning drying drum of a vacuum pulse dryer

technical field

The utility model relates to the field of matching parts of a dryer used in the food industry, in particular to a drying drum of a vacuum pulse dryer.

Background technique

As a new type of vacuum pulsating drying device, the drum type vacuum pulsating dryer has the advantages of good quality of dried products and higher drying rate than traditional vacuum drying technology. At the same time, compared with the plate drying technology, the drum drying technology has greater production capacity and wider application, and can make the material heat more uniformly, ensuring the drying rate of the material while maintaining the excellent quality of the material. However, when drying agricultural products, when the moisture in the material escapes, a small amount of sticky substances inside the material will be brought out, causing the material to adhere to the inner surface of the drum. During the initial period of drying, as the drying temperature rises and the drying time prolongs, the viscosity will increase again, and the phenomenon of material sticking to the surface of the drying chamber will become more serious. The traditional drying drum is basically a barrel drum with a smooth inner wall, which cannot automatically remove the material from the inner surface of the drying drum. Therefore, when the wall sticks in the drying process, it will affect the heat transfer of the heat transfer medium, which will not only affect the quality of the materials stuck to the inner wall of the drying chamber, but also affect the drying rate and drying quality of the remaining materials in the drying chamber.

Contents of the invention

The purpose of the utility model is to provide a self-cleaning drying drum of a vacuum pulsation dryer that can automatically scrape off the materials adhered to the inner surface of the drying drum during the drying process, thereby effectively improving the drying efficiency and drying quality of the drum dryer.

In order to achieve the above object, the utility model provides the following technical solutions:

A self-cleaning drying drum of a vacuum pulsation dryer, comprising a drum-type inner drum 9, a drum-type outer drum 1, a drying drum cover assembly, and a heating medium circulation channel 16, characterized in that the inner surface of the drum-type inner drum 9 is fixed The self-cleaning device supported by the support 3 is connected, and the self-cleaning device includes a rotating shaft 6, and a cleaning brush 10 with a counterweight 4 is connected to the rotating shaft 6.

The heating medium circulation channels 16 are evenly distributed on the outer wall of the drum-type inner drum 9, and are evenly distributed in a square shape along the axial direction.

One end of the support 3 is fixedly connected to the inner wall of the drum-type inner drum 9, and the other end is connected with a polytetrafluoro cylinder 7, and the rotating shaft 6 is sleeved therein, and is limited by a retaining spring 17; the cleaning brush 10 and the counterweight 4 pass through Bolt connection is fixed on the rotating shaft 6.

A plurality of cleaning brushes 10 can be installed on the rotating shaft 6, because the position of the counterweight body 4 can be adjusted, under the action of its own weight, the cleaning brushes 10 can swing 5°～10° in the vertical plane.

The front port of the drum type inner drum 9 is fixed with a semicircular baffle plate 5 to prevent material from spilling.

A pair of brackets 15 are fixedly connected to the outer wall of the front end of the drum-type outer drum 1 , the quick-opening parts 12 are connected to the brackets 15 by bolts, and the drum cover 8 is connected to the quick-opening parts 12 by pins.

The beneficial effects of the utility model are:

1. The drum-type drum drying chamber is adopted, which can make the materials contact with the heat source more uniformly, and ensure that all materials can reach the predetermined quality.

2. A self-cleaning brush is installed inside the barrel drum, which can remove the materials adhered to the inner wall of the drum, and further improve the drying efficiency and drying quality of the materials.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the self-cleaning drying drum of the vacuum pulsation dryer of the present invention;

Fig. 2 is a side view of the self-cleaning drying drum of the vacuum pulsation dryer of the present invention;

Fig. 3 is a schematic diagram of the flow cycle of the heating medium of the self-cleaning drying drum of the vacuum pulsation dryer of the present invention.

reference sign

1 drum type outer drum 2 insulation layer

3 Support 4 Counterweight

5 semicircular baffle 6 rotating shaft

7 PTFE cylinder 8 Roller cover

9 drum type inner drum 10 cleaning brush

11 Material 12 Quick release

13 Bolt 14 Nut

15 Bracket 16 Heating medium circulation channel

17 circlip 18 roller shaft

Heating medium circulation direction: -·-·-·-→ Drum rotation direction: →

Detailed ways

The utility model will be further described below according to the accompanying drawings.

As shown in FIG. 1 , the self-cleaning drying drum of the vacuum pulsation dryer of the present invention includes a drum-type inner drum 9 , a drum-type outer drum 1 , a drying drum cover assembly, and a heating medium circulation channel 16 . Wherein, a pair of supports 3 are fixedly connected to the inner surface of the drum type inner cylinder 9 to support the self-cleaning device. The self-cleaning device includes a rotating shaft 6, on which a cleaning brush 10 with a counterweight 4 is connected.

Among them, one end of the support 3 is fixedly connected to the inner wall of the drum type inner drum 9, and the other end is connected with a polytetrafluoro cylinder 7, and the rotating shaft 6 is sleeved therein, and is limited by the retaining spring 17; the cleaning brush 10 and the counterweight 4 All are fixed on the rotating shaft 6 by bolts, and a plurality of cleaning brushes 10 can be installed on the rotating shaft 6 .

The outer surface of the drum-type inner drum 9 is fixedly connected with a heating medium circulation channel 16 that is evenly distributed in a square direction along the axial direction, and a circle of insulation layer 2 is wrapped outside the circulation channel. Cylinder 1, the open end of drum type outer cylinder 1 is then sealed with a drying cylinder cover assembly.

There is a small hole with a diameter of 30mm at the bottom of the drum-type inner drum 9, and the drum shaft 18 for vacuuming is fixed at the bottom by bolts, and the air in the chamber is drawn out from the small hole to achieve the vacuum effect; The front port of the type inner cylinder 9 is fixed with a semi-circular baffle plate 5, when preventing from opening the drying drum cover 8, the dry material is spilled from the front port.

There is a round hole with a diameter of 80-100 mm at the bottom of the barrel-type outer drum 1, so that the drum shaft 18 used for vacuuming can pass through; a pair of brackets 15 are welded on the outer wall of the front end to install the quick-opening parts 12, The roller cover 8 is connected to the quick release part 12 through a pin shaft.

When the drum type vacuum pulse dryer starts to work, the heating medium is transported from the A end of the self-cleaning drying drum into the heating medium circulation channel 16 to heat the self-cleaning drying drum, and the heating medium flows through a heating medium circulation channel 16 After the cycle, it flows back to the heating medium heater from the B end, and its cycle schematic diagram is shown in Figure 3. Open the round drum cover 8, put the material 11 to be dried into the self-cleaning drying drum, cover the drum cover 8, the self-cleaning drying drum starts to rotate, the material 11 and the support 3 also rotate with the self-cleaning drying drum, And now self-cleaning device, because the effect of its lower end counterweight body 4, makes whole cleaning brush 10 keep substantially vertical state, and cleaning brush 10 can swing 5 °～10 ° in vertical plane. When a little material 11 is adhered to the inner wall of the drum, when the adhered material 11 rotates to the upper part of the drum with the drum, it will be scraped off by the cleaning brush 10 from the inner wall of the drum. After the material is dried, the nut 14 on the bolt 13 is unscrewed, and the quick opening part 12 is pulled up, so that the drum cover 8 can be driven to be opened to realize quick opening.

Claims (6)

1. self-cleaning drying drum of vacuum impulse dryer machine, comprise cylinder (9) in the cylindrical, the outer cylinder (1) of cylindrical, drying drum cap assemblies, heat medium circulation canal (16), it is characterized in that: the fixedly connected cleaning apparatus for self that is supported by bearing (3) of cylinder (9) inner surface in the cylindrical, this cleaning apparatus for self comprises the cleaning brush (10) that is connected with band balance weight body (4) in rotating shaft (6), the rotating shaft (6).

2. the self-cleaning drying drum of vacuum impulse dryer machine as claimed in claim 1 is characterized in that: heat medium circulation canal (16) is distributed on interior cylinder (9) outer wall of cylindrical, and staggered evenly distribution vertically being square.

3. the self-cleaning drying drum of vacuum impulse dryer machine as claimed in claim 1, it is characterized in that: bearing (3) one ends are fixedly connected on the inwall of cylinder (9) in the cylindrical, the other end is connected with poly-tetrafluoro cylinder (7), and rotating shaft (6) is placed in wherein, and is spacing by jump ring (17); Cleaning brush (10) and balance weight body (4) all are fastened in the rotating shaft (6) by bolt.

4. as claim 1 or the self-cleaning drying drum of 3 described vacuum impulse dryer machines, it is characterized in that: a plurality of cleaning brush (10) can be installed in the rotating shaft (6), because the position of balance weight body (4) can be regulated, under its deadweight effect, cleaning brush (10) can be swung 5 °～10 ° in vertical plane.

5. the self-cleaning drying drum of vacuum impulse dryer machine as claimed in claim 1 is characterized in that: the front port of cylinder (9) is fixed with a semicircle shape baffle plate (5) that prevents that material is unrestrained in the cylindrical.

6. the self-cleaning drying drum of vacuum impulse dryer machine as claimed in claim 1, it is characterized in that: outer cylinder (1) the front end outer wall of cylindrical is fixedly connected with a pair of carriage (15), open part (12) soon and be connected on the carriage (15) by bolt, drum cover (8) is connected by bearing pin and opens soon on the part (12).

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