CN219014878U

CN219014878U - Vacuum low-temperature dryer

Info

Publication number: CN219014878U
Application number: CN202223442635.6U
Authority: CN
Inventors: 陶志刚; 陈校灿
Original assignee: Guangdong Chunqing Environmental Protection Technology Co ltd
Current assignee: Guangdong Chunqing Environmental Protection Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-12
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to the technical field of dryers, in particular to a vacuum low-temperature dryer, which comprises an outer box positioned outside and an inner box arranged in the outer box, wherein a top cover assembly capable of moving up and down in the inner box is arranged above the outer box, the top cover assembly comprises a top cover, a driving motor is arranged at the center of the top cover, a transmission shaft driven by the driving motor is rotationally connected at the center of the bottom of the top cover, a plurality of parallel material shelves are arranged on the transmission shaft, and a stirring assembly is arranged above each material shelf; according to the utility model, the stirring assembly is arranged above each material shelf, and is driven to rotate by the driving motor, so that the stirring assembly can drive materials placed on the material shelf to roll in the rotating process, namely the materials can be turned over, the drying speed of the materials can be effectively increased, and compared with vibration rolling, the damage to the materials is low.

Description

Vacuum low-temperature dryer

Technical Field

The utility model relates to the technical field of dryers, in particular to a vacuum low-temperature dryer.

Background

The vacuum low-temperature dryer is a dryer, and because the process indexes of the vacuum low-temperature dryer are exactly between the two devices, the vacuum low-temperature dryer breaks through the vacuum low-temperature dryer, so that the inside of a dried product can form a porous loose shape, the original material property of the product is reserved, the appearance is good, and the vacuum low-temperature dryer can meet the processing requirements of most heat-sensitive materials.

In the prior art, there is a vacuum low-temperature drying oven disclosed in patent application number CN202120684298.8, which comprises a box body, a heating component and a vacuumizing device; the side surface of the box body is provided with a material inlet and a material outlet; a plurality of layers of material storage trays are vertically arranged in the box body, the material storage trays are fixed with the inner side surface of the box body through elastic pieces, a vertical shaft is fixedly arranged at the right center of all the material storage trays in a penetrating way, and the top of the vertical shaft is connected with a vibrating motor; the heating component comprises a heat conduction pipe coiled in the inner space of the side surface of the box body and heating plates arranged on the top surface and the bottom surface of the box body, and two ends of the heat conduction pipe are respectively communicated with an electric heating water tank arranged outside the box body; the heating plate comprises an infrared heating pipe, a heat radiation reflecting plate and a heat insulation base; the box body is provided with a vacuumizing port, and the vacuumizing device is connected with the vacuumizing port.

Although the technical scheme has the characteristics of good material drying effect, good quality after drying, high drying efficiency and low energy consumption; but this technical scheme can vibrate from top to bottom under vibrating motor's effect at in-service use, to realize the turn-over to the material, but can cause the collision between material and the material or material and the material tray up-and-down vibration's in-process, and then can lead to damaging the material. In view of this, we propose a vacuum cryogenic dryer.

Disclosure of Invention

In order to make up for the defect that the vacuum low-temperature drying box disclosed in the patent with the patent application number of CN202120684298.8 can vibrate up and down under the action of a vibrating motor to realize the turnover of materials, but collision between the materials or damage to the materials can be caused in the process of vibrating up and down.

The technical scheme of the utility model is as follows:

the vacuum low-temperature dryer comprises an outer box and an inner box, wherein the outer box is positioned outside, the inner box is arranged in the outer box, a top cover assembly capable of moving up and down in the inner box is arranged above the outer box, the top cover assembly comprises a top cover, a driving motor is arranged in the center of the top part of the top cover, a transmission shaft driven by the driving motor is rotatably connected with the center of the bottom part of the top cover, a plurality of parallel material shelves are arranged on the transmission shaft, a stirring assembly is arranged above each material shelf and used for stirring materials placed on the material shelf to roll, and the material shelf is rotatably connected with the transmission shaft; the stirring assembly comprises a connecting shaft sleeved on the transmission shaft and a limiting shaft integrally formed on the connecting shaft, the limiting shaft is fixedly connected with the transmission shaft through a limiting bolt and a limiting hole formed in the transmission shaft, and two stirring plates are symmetrically welded on the connecting shaft.

As the preferable technical scheme, the stirring brushes which are uniformly distributed are arranged below the stirring plate, so that materials on the material shelf can be protected to a certain extent.

As the preferable technical scheme, the transmission shaft is positioned above each material shelf and is provided with a plurality of limiting holes, so that the position of the stirring assembly can be conveniently adjusted.

As the preferable technical scheme, the bottom of the top cover is provided with a lower extension plate closely attached to the inner wall of the outer box, and the bottom of the lower extension plate is provided with at least one annular infrared heating pipe.

As the preferable technical scheme, install the raceway of spiral between outer case and the inner tank, the entry and exit mouth of raceway of spiral all stretches out to the outer outside of case, and the inner tank is close to top department and installs the exhaust tube that stretches into the outer outside of case.

As the preferable technical scheme, set up the bleeder vent that is used for ventilative on the material shelf, the net is installed at the bleeder vent top, and material shelf outer annular wall symmetry integrated into one piece has two stopper, has set up two spacing spouts respectively with two stopper grafting connection on the inner wall of the inner tank.

As the preferable technical scheme, two first convex plates are symmetrically welded at the bottom of the outer box, a hydraulic cylinder is arranged on each first convex plate, two second convex plates are symmetrically welded on the outer annular wall of the top cover, and the second convex plates are arranged on piston rods of the hydraulic cylinders.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the stirring assembly is arranged above each material shelf, and is driven to rotate by the driving motor, so that the stirring assembly can drive materials placed on the material shelf to roll in the rotating process, namely the materials can be turned over, the drying speed of the materials can be effectively increased, and compared with vibration rolling, the damage to the materials is low.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a top cap assembly according to the present utility model;

FIG. 3 is a schematic view of the structure of the inside of the outer case and the inner case according to the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 3 with the inner box removed;

fig. 5 is a front view of fig. 2 in the present utility model.

The meaning of each reference numeral in the figures is:

1. a top cover assembly; 10. a top cover; 11. a convex plate II; 12. a driving motor; 13. a lower extension plate; 14. a transmission shaft; 140. a limiting hole; 15. a material shelf; 150. ventilation holes; 151. a limiting block; 16. the assembly is stirred; 160. a connecting shaft; 161. a limiting shaft; 162. a limit bolt; 163. a toggle plate; 164. stirring the brush; 17. an infrared heating tube; 2. an outer case; 3. a convex plate I; 4. a hydraulic cylinder; 5. a spiral water pipe; 6. an exhaust pipe; 7. an inner box; 70. limiting sliding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

the vacuum low-temperature dryer comprises an outer box 2 positioned outside and an inner box 7 arranged in the outer box 2, wherein a top cover assembly 1 capable of moving up and down in the inner box 7 is arranged above the outer box 2, the top cover assembly 1 comprises a top cover 10, a driving motor 12 is arranged in the center of the top cover 10, a transmission shaft 14 driven by the driving motor 12 is rotatably connected in the center of the bottom, a plurality of parallel material shelves 15 are arranged on the transmission shaft 14, and a stirring assembly 16 is arranged above each material shelf 15 and used for stirring materials placed on the material shelves 15 to roll, and the material shelves 15 are rotatably connected with the transmission shaft 14; the toggle assembly 16 comprises a connecting shaft 160 sleeved on the transmission shaft 14 and a limiting shaft 161 integrally formed on the connecting shaft 160, wherein the limiting shaft 161 is fixedly connected with the transmission shaft 14 through a limiting bolt 162 and a limiting hole 140 formed in the transmission shaft 14, and two toggle plates 163 are symmetrically welded on the connecting shaft 160. Through all setting up one and stir subassembly 16 in every material shelf 15 top to drive by driving motor 12 and stir subassembly 16 rotation, stir subassembly 16 at pivoted in-process, can drive the material roll of placing on material shelf 15, can overturn the material, can accelerate the stoving speed of material effectively. The outer annular wall of the material shelf 15 is closely attached to the inner wall of the inner case 7.

As a preference of this embodiment, the toggle brushes 164 are installed below the toggle plate 163 and are uniformly distributed, so that materials on the material shelf 15 can be protected to a certain extent. Namely, the material is protected when the material is turned over.

Preferably, the transmission shaft 14 is provided with a plurality of limiting holes 140 above each material shelf 15, so as to facilitate the adjustment of the position of the toggle assembly 16. Even if be convenient for adjust the height of stirring subassembly 16, the use of different granule size materials is convenient.

Preferably, the bottom of the top cover 10 is provided with a lower extension plate 13 closely attached to the inner wall of the outer box 2, and the bottom of the lower extension plate 13 is provided with at least one annular infrared heating pipe 17. The material located in the inner box 7 can be baked by heat radiation through the arranged infrared heating pipe 17.

As a preferable mode of the embodiment, a spiral water pipe 5 is installed between the outer box 2 and the inner box 7, the inlet and outlet ports of the spiral water pipe 5 are extended to the outside of the outer box 2, and an exhaust pipe 6 extended to the outside of the outer box 2 is installed at the position, close to the top, of the inner box 7. It should be noted that, in this embodiment, the structure of the external part of the device is the same as the structure of the external part of the box body disclosed in the patent with the application number 202120684298.8, specifically, the spiral water pipe 5 in this embodiment is connected with the electric heating water tank in this technical scheme, and a water pump is installed at the water inlet pipe of the spiral water pipe 5; the suction pipe 6 in this embodiment is connected to a condenser and a vacuum pump in this embodiment.

As the preference of this embodiment, the material shelf 15 is provided with ventilation holes 150 for ventilation, the top of the ventilation holes 150 is provided with a separation net, the outer annular wall of the material shelf 15 is symmetrically and integrally formed with two limiting blocks 151, and the inner wall of the inner box 7 is provided with two limiting sliding grooves 70 which are respectively connected with the two limiting blocks 151 in a plugging manner. The rotation of the material shelf 15 can be restricted after the material shelf 15 is placed in the inner box 7 by the stopper 151 and the stopper chute 70.

As the preference of this embodiment, two first convex plates 3 are symmetrically welded at the bottom of the outer box 2, a hydraulic cylinder 4 is mounted on each first convex plate 3, two second convex plates 11 are symmetrically welded on the outer annular wall of the top cover 10, and the second convex plates 11 are mounted on the piston rod of the hydraulic cylinder 4. The hydraulic cylinder 4 can drive the top cover assembly 1 to move up and down, so that feeding or taking of materials on the material shelf 15 can be realized.

When the vacuum low-temperature dryer is used, firstly, materials are placed on a material shelf 15 successively from bottom to top, a limiting block 151 is aligned with a limiting chute 70, then a top cover assembly 1 is moved downwards through a hydraulic cylinder 4, the material shelf 15 is slowly lowered into an inner box 7, a top cover 10 is tightly attached to the top of an outer box 2, then an electric heating water tank, a water pump, a condenser and a vacuum pump are started, the inner box 7 is heated and vacuumized, after the inner box is heated to a certain temperature and vacuumized for a certain period of time, a driving motor 12 is started, a driving shaft 14 is driven by the driving motor 12 to rotate, a stirring assembly 16 arranged on the driving shaft 14 can be driven to rotate, the materials placed on the material shelf 15 are rolled, the height of the stirring assembly 16 from the material shelf 15 is required to be adjusted before the material shelf 15 is placed in the inner box 7, and the material shelf 15 is fixed by using a limiting bolt 162 after the adjustment.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a vacuum low temperature dryer, includes outer case (2) and install inner box (7) in outer case (2) that are located outside, its characterized in that: a top cover assembly (1) capable of moving up and down in the inner box (7) is arranged above the outer box (2), the top cover assembly (1) comprises a top cover (10), a driving motor (12) is arranged at the center of the top cover (10), a transmission shaft (14) driven by the driving motor (12) is rotatably connected at the center of the bottom of the top cover, a plurality of parallel material shelves (15) are arranged on the transmission shaft (14), a stirring assembly (16) is arranged above each material shelf (15) and used for stirring materials placed on the material shelves (15) to roll, and the material shelves (15) are rotatably connected with the transmission shaft (14); the stirring assembly (16) comprises a connecting shaft (160) sleeved on the transmission shaft (14) and a limiting shaft (161) integrally formed on the connecting shaft (160), wherein the limiting shaft (161) is fixedly connected with the transmission shaft (14) through a limiting bolt (162) and a limiting hole (140) formed in the transmission shaft (14), and two stirring plates (163) are symmetrically welded on the connecting shaft (160).

2. The vacuum cryogenic dryer of claim 1, wherein: the stirring brushes (164) which are uniformly distributed are arranged below the stirring plate (163), so that materials on the material shelf (15) can be protected to a certain extent.

3. The vacuum cryogenic dryer of claim 2, wherein: a plurality of limiting holes (140) are formed in the transmission shaft (14) above each material shelf (15), and the position of the stirring assembly (16) can be conveniently adjusted.

4. A vacuum cryogenic dryer as claimed in claim 3, characterized in that: the bottom of the top cover (10) is provided with a lower extension plate (13) closely attached to the inner wall of the outer box (2), and the bottom of the lower extension plate (13) is provided with at least one annular infrared heating pipe (17).

5. The vacuum cryogenic dryer of claim 4, wherein: a spiral water pipe (5) is arranged between the outer box (2) and the inner box (7), the inlet and outlet ports of the spiral water pipe (5) are all extended out of the outer box (2), and an exhaust pipe (6) extending out of the outer box (2) is arranged at the position, close to the top, of the inner box (7).

6. The vacuum cryogenic dryer of claim 5, wherein: the material shelf (15) is provided with ventilation holes (150) for ventilation, the top of each ventilation hole (150) is provided with a separation net, the outer annular wall of the material shelf (15) is symmetrically and integrally formed with two limiting blocks (151), and the inner wall of the inner box (7) is provided with two limiting sliding grooves (70) which are respectively connected with the two limiting blocks (151) in an inserting mode.

7. The vacuum cryogenic dryer of claim 6, wherein: two first convex plates (3) are symmetrically welded at the bottom of the outer box (2), a hydraulic cylinder (4) is arranged on each first convex plate (3), two second convex plates (11) are symmetrically welded on the outer annular wall of the top cover (10), and the second convex plates (11) are arranged on a piston rod of the hydraulic cylinder (4).