CN218993929U

CN218993929U - Experimental vacuum pulse dryer

Info

Publication number: CN218993929U
Application number: CN202223593923.1U
Authority: CN
Inventors: 郝建; 高志雄
Original assignee: Changzhou Hengan Drying Equipment Co ltd
Current assignee: Changzhou Hengan Drying Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a test type vacuum pulse dryer, it relates to the technical field of dryer equipment, including drying cabinet, vacuum pump and air drum, be equipped with a plurality of hot plates in the drying cabinet, the vacuum pump with the drying cabinet is linked together through the connecting pipe, the drying cabinet with the air drum is linked together through the air supply pipe, the air supply pipe be used for to blow in the drying cabinet and protect gas, it is provided with the baking pan that is used for placing the material to rotate on the hot plate, be equipped with on the inner wall of drying cabinet and be used for the drive baking pan pivoted drive wheel, the drive wheel with baking pan butt. This application has the effect that improves material drying efficiency.

Description

Experimental vacuum pulse dryer

Technical Field

The application relates to the technical field of dryer equipment, in particular to a test type vacuum pulse dryer.

Background

The vacuum drier is a vacuum box type drying equipment, belongs to static vacuum drying equipment, works under the negative pressure condition, can be widely applied to material drying in various industries, and is especially suitable for drying heat-sensitive materials or materials with high viscosity and easy oxidation. Is suitable for the research and implementation of the drying process of the new materials in the laboratories of research and technological institutions and pharmaceutical enterprises.

A vacuum dryer in the related art comprises an evacuating pump and a vacuum box, wherein a drying table with a multi-layer structure is arranged in the vacuum box, a drying tray is placed on the drying table, the evacuating pump is communicated with the vacuum box through a pipeline, and a pressure release valve is arranged on the vacuum box.

Aiming at the related technology, the inventor considers that the drying table in the vacuum box is of a multi-layer structure, and in the material drying process, water vapor in the material cannot be discharged out of the vacuum box in time, so that the drying effect is not ideal, the drying time is long, and the requirement of a laboratory on quick drying of the material cannot be met.

Disclosure of Invention

In order to solve the problem that the drying time is long because water vapor in materials cannot be discharged out of a vacuum box in time, the application provides a test type vacuum pulse dryer.

The application provides a test type vacuum pulse dryer adopts following technical scheme:

the utility model provides a test type vacuum pulse dryer, includes drying cabinet, vacuum pump and gas pitcher, be equipped with a plurality of hot plates in the drying cabinet, the vacuum pump with the drying cabinet is linked together through the connecting pipe, the drying cabinet with the gas pitcher is linked together through the gas supply pipe, the gas supply pipe be used for to blow in the drying cabinet protective gas, it is provided with the baking pan that is used for placing the material to rotate on the hot plate, be equipped with on the inner wall of drying cabinet and be used for the drive baking pan pivoted drive wheel, the drive wheel with baking pan butt.

Through adopting above-mentioned technical scheme, the air in the drying cabinet is extracted to the vacuum pump for reach the vacuum degree of settlement in the drying cabinet, thereby can reduce the boiling point of water, accelerate the evaporation of moisture in the material. The heating plate heats the material in the baking tray, and the baking tray rotates on the heating plate, so that the material in the baking tray is uniformly heated, and the speed of water evaporation in the material is improved. The air supply pipe is used for introducing protective gas into the drying box, and then the protective gas is pumped out of the drying box by the vacuum pump, so that the vacuum degree in the drying box is maintained within a set range. Meanwhile, a laminar flow channel for the flow of the protective gas is formed between the heating plates, so that the evaporated moisture in the materials is uniformly discharged out of the drying box along with the protective gas in the rotating process of the drying plate, the time required for drying the materials is greatly reduced, and the drying efficiency of the materials is improved.

Optionally, a driving part is arranged on the drying box, a connecting shaft is rotationally connected to the drying box, one end of the connecting shaft is coaxially fixed with an output shaft of the driving part, and the connecting shaft is coaxially fixed with the driving wheel.

Through adopting above-mentioned technical scheme, the driving piece drives the connecting axle and rotates to make the drive wheel follow the connecting axle and rotate, drive wheel and baking tray butt, the drive wheel passes through frictional force and drives the baking tray rotation.

Optionally, a friction increasing surface is arranged on the peripheral surface of the driving wheel, and the friction increasing surface is abutted with the baking tray.

By adopting the technical scheme, the friction-increasing surface is arranged on the peripheral surface of the driving wheel, so that a larger friction force exists between the driving wheel and the baking tray, and the transmission efficiency between the driving wheel and the baking tray is improved.

Optionally, be equipped with the governing valve on the air supply pipe, the air supply pipe stretches into the one end of drying cabinet is connected with a plurality of tributary pipes, the tributary pipe is located in the drying cabinet is relative on the inner wall of connecting pipe one side, a plurality of venthole has been seted up on the tributary pipe, and a plurality of the venthole is followed the length direction of tributary pipe evenly sets up.

Through adopting above-mentioned technical scheme, the staff is through the air supply amount of governing valve control air supply pipe, cooperatees with the vacuum pump for the vacuum in the drying cabinet is kept in the within range of settlement. The air outlet holes are arranged on the branch flow pipes, so that the protective gas is uniformly input into the drying box, and the efficiency of evaporating moisture in materials to be discharged out of the drying box along with the protective gas can be improved.

Optionally, a placing groove is formed in the heating plate, the placing groove is in spiral arrangement, and a heating pipe is arranged in the placing groove.

Through adopting above-mentioned technical scheme, the heating pipe of spiral setting for the heat that gives off concentrates in the bottom of baking pan, makes the baking pan be heated evenly, thereby has improved the speed that the material in the baking pan heated evaporation moisture.

Optionally, a positioning block is arranged on the heating plate, a positioning groove for the positioning block to be inserted is formed in the baking tray, and the positioning block is abutted to the groove wall of the positioning groove.

Through adopting above-mentioned technical scheme, the locating piece inserts and establishes in the constant head tank for the baking pan uses the locating piece to rotate as the axle center under the drive of drive wheel, and has limited the position of baking pan on the hot plate, makes the baking pan be difficult to separate with the hot plate when rotating, and then has improved the heating efficiency of hot plate to the baking pan.

Optionally, be equipped with a plurality of fixed pipes in the drying cabinet, a plurality of fixed pipe is followed the width direction setting of drying cabinet, the intercommunication has a plurality of pulse shower nozzles that set up towards the baking pan on the fixed pipe, just pulse shower nozzle all is on a parallel with the baking pan sets up.

Through adopting above-mentioned technical scheme, because at the in-process to material heating stoving, the material can be because the foaming of being heated to cause a part to have the gaseous residue of moisture, the line-shaped gas that pulse shower nozzle blown out can puncture the bubble that the material produced in the baking pan, thereby makes the gas in the bubble follow in the protective gas discharge drying cabinet, has further improved the dry speed of material.

Optionally, be equipped with the intake pipe on the drying cabinet, the one end of intake pipe with the gas pitcher is linked together, the intake pipe stretches into one end in the drying cabinet is linked together with a plurality of fixed pipe, be equipped with the control valve on the intake pipe.

Through adopting above-mentioned technical scheme, the staff is according to the dry condition of the interior material of baking tray, and the condition of foaming appears in the material, opens the intake pipe through the control valve for the line-shaped gas that pulse shower nozzle blown out punctures the bubble that produces on the material.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up the air supply pipe in the drying cabinet, the baking pan rotates to set up on the heating rod board, and the air supply pipe lets in the shielding gas to the drying cabinet in, in the drying cabinet is extracted by the vacuum pump again for the vacuum in the drying cabinet is kept in the within range of settlement. Meanwhile, a laminar flow channel for the flow of the protective gas is formed between the heating plates, so that the evaporated moisture in the materials is uniformly discharged out of the drying box along with the protective gas in the rotating process of the drying plate, and the drying efficiency of the materials is improved;

2. through set up the pulse shower nozzle on the drying cabinet, the line-shaped gas that the pulse shower nozzle blown out can puncture the bubble that the material produced in the baking tray to in making the bubble have moisture to follow the protection gas and discharge the drying cabinet, further improved the dry speed of material.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a test type vacuum pulse dryer according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a drying box in an embodiment of the present application.

Fig. 3 is a schematic structural view of a heating plate in an embodiment of the present application.

Fig. 4 is a schematic structural view of a driving wheel in the embodiment of the present application.

Reference numerals illustrate: 1. a drying box; 11. a driving wheel; 12. a driving member; 13. a connecting shaft; 14. friction-increasing surface; 15. a door; 16. an observation window; 2. a vacuum pump; 21. a connecting pipe; 3. a gas tank; 31. an air supply pipe; 32. a regulating valve; 33. a branch flow pipe; 34. an air outlet hole; 4. a heating plate; 41. baking tray; 42. a placement groove; 43. heating pipes; 44. a positioning block; 45. a positioning groove; 5. a fixed tube; 51. a pulse nozzle; 52. an air inlet pipe; 53. and a control valve.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a test type vacuum pulse dryer. Referring to fig. 1, a test type vacuum pulse dryer comprises a drying oven 1, a vacuum pump 2 and a gas tank 3, wherein a box door 15 is rotatably connected to the drying oven 1, and an observation window 16 is fixedly connected to the box door 15. An air supply pipe 31 for blowing air into the drying box 1 is fixedly connected to the drying box 1, one end, away from the drying box 1, of the air supply pipe 31 is communicated with the air tank 3, an adjusting valve 32 is fixedly connected to the air supply pipe 31, and protective gas is stored in the air tank 3. One end of the drying box 1, which is far away from the air supply pipe 31, is communicated with a connecting pipe 21, the connecting pipe 21 is communicated with a vacuum pump 2, and the vacuum pump 2 is used for sucking out air in the drying box 1, so that the vacuum degree in the drying box 1 is maintained within a set range, the boiling point of water can be reduced, and the evaporation of water in materials is accelerated.

Referring to fig. 2 and 3, a plurality of heating plates 4 are fixedly arranged in the drying oven 1, baking trays 41 for placing materials are rotatably arranged on the heating plates 4, three heating plates 4 are arranged in the embodiment, and the three heating plates 4 are uniformly arranged along the height direction of the drying oven 1. A spiral placement groove 42 is formed in the heating plate 4, and a heating pipe 43 is installed in the placement groove 42. The heating plate 4 is fixedly connected with a positioning block 44, the baking tray 41 is provided with a positioning groove 45 for inserting the positioning block 44, and the positioning block 44 is abutted with the groove wall of the positioning groove 45, so that the position of the baking tray 41 on the heating plate 4 is limited, and the baking tray 41 can rotate by taking the positioning block 44 as an axis. The heat of the heating pipe 43 arranged in a spiral manner can be concentrated at the bottom of the baking tray 41, so that the baking tray 41 is uniformly heated, and the speed of evaporating water from materials in the baking tray 41 by heating is improved.

Referring to fig. 4, a driving member 12 is fixedly connected to the drying box 1, in this embodiment, the driving member 12 is a motor, a connecting shaft 13 is rotatably connected to the drying box 1, and the connecting shaft 13 is disposed along a height direction according to the box. One end of the connecting shaft 13 is coaxially fixed with the output shaft of the driving member 12. The connection shaft 13 is coaxially fixed with a driving wheel 11, the driving wheel 11 is abutted against the baking tray 41, and the circumferential surface of the driving wheel 11 is provided with a friction increasing surface 14 for increasing the friction force between the driving wheel 11 and the baking tray 41. The operator starts the driving member 12, and the driving member 12 drives the connecting shaft 13 to rotate, so that the driving wheel 11 drives the baking tray 41 to rotate through friction force.

Referring to fig. 1 and 2, a plurality of branch pipes 33 are fixedly connected to an inner wall of one side of the drying oven 1 far away from the connecting pipe 21, in this embodiment, three branch pipes 33 are provided, each branch pipe 33 is communicated with one end of the air supply pipe 31 extending into the drying oven 1, the branch pipes 33 are arranged along the width direction of the drying oven 1, and each branch pipe 33 is located between two adjacent heating plates 4. The bypass pipe 33 is provided with a plurality of air outlet holes 34, and the plurality of air outlet holes 34 are arranged along the length direction of the direct current pipe. The worker opens the regulating valve 32, and the shielding gas is uniformly introduced into the drying oven 1 through the gas outlet holes 34, so that a laminar flow passage through which the shielding gas flows is formed between the adjacent heating plates 4. The protective gas flows towards the connecting pipe 21 under the action of the vacuum pump 2, and the evaporated moisture in the baking tray 41 after the materials are heated is sucked out of the drying box 1 by the vacuum pump 2 along with the protective gas, so that the drying efficiency of the materials is improved, and the requirement of laboratory materials for quick drying is met.

Referring to fig. 1 and 2, an air inlet pipe 52 is connected to the drying box 1, one end of the air inlet pipe 52 away from the drying box 1 is communicated with the air tank 3, and a control valve 53 is fixedly connected to the air inlet pipe 52. Fixedly connected with a plurality of fixed pipes 5 on the inner wall of keeping away from connecting pipe 21 one side in the drying cabinet 1, fixed pipe 5 sets up along the width direction of drying cabinet 1, and fixed pipe 5 is equipped with three in this embodiment, and three fixed pipe 5 all stretches into the one end case intercommunication of drying cabinet 1 with intake pipe 52, and every fixed pipe 5 all is located between two adjacent hot plates 4, and the intercommunication has a plurality of pulse shower nozzles 51 that set up towards baking tray 41 on the fixed pipe 5, and pulse shower nozzle 51 all is on a parallel with baking tray 41 and slightly is higher than baking tray 41 setting.

Because the material is heated and dried, the material can be foamed by being heated, so that a part of gas with moisture remains. When the worker observes the drying condition of the materials in the baking tray 41 through the observation window 16 and bubbles appear on the materials, the worker opens the air inlet pipe 52 through the control valve 53, so that the linear gas blown out by the pulse spray nozzle 51 punctures the bubbles generated on the materials, and the gas in the bubbles is discharged out of the drying box 1 along with the protective gas, so that the drying speed of the materials is further improved.

The implementation principle of the experimental vacuum pulse dryer is as follows: first, a worker installs the baking tray 41 containing the material on the heating plate 4 such that the positioning block 44 is inserted into the positioning groove 45. Then, the vacuum pump 2, the driving member 12 and the heating pipe 43 are started, and the flow rate of the shielding gas in the gas supply pipe 31 is controlled by the regulating valve 32, so that the vacuum degree in the drying oven 1 is maintained within a set range. The heating pipe 43 heats the baking tray 41, so that the materials are heated and dried, and the driving piece 12 enables the baking tray 41 to rotate on the heating plate 4 to be heated uniformly, so that the efficiency of drying the materials is improved. The moisture evaporated from the heated material is sucked out of the drying oven 1 by vacuum along with the protective gas, and during the drying process of the material, staff observe the material in the drying pan 41 through the observation window 16. When air bubbles appear on the material, the air inlet pipe 52 is opened through the control valve 53, so that the linear gas blown out by the pulse nozzle 51 punctures the air bubbles generated on the material, and the gas in the air bubbles is discharged out of the drying box 1 along with the protective gas, so that the drying speed of the material is further improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a test type vacuum pulse dryer, includes drying cabinet (1), vacuum pump (2) and gas tank (3), be equipped with a plurality of hot plates (4) in drying cabinet (1), vacuum pump (2) with drying cabinet (1) are linked together its characterized in that through connecting pipe (21): the drying oven (1) is communicated with the gas tank (3) through a gas supply pipe (31), the gas supply pipe (31) is used for blowing in protective gas into the drying oven (1), a drying tray (41) for placing materials is rotationally arranged on the heating plate (4), a driving wheel (11) for driving the drying tray (41) to rotate is arranged on the inner wall of the drying oven (1), and the driving wheel (11) is in butt joint with the drying tray (41).

2. A test vacuum pulse dryer as defined in claim 1, wherein: be equipped with driving piece (12) on drying cabinet (1), it is connected with connecting axle (13) to rotate on drying cabinet (1), the one end of connecting axle (13) with the output shaft coaxial fixed of driving piece (12), connecting axle (13) with drive wheel (11) coaxial fixed.

3. A test vacuum pulse dryer as defined in claim 2, wherein: the periphery of the driving wheel (11) is provided with a friction increasing surface (14), and the friction increasing surface (14) is abutted with the baking tray (41).

4. A test vacuum pulse dryer as defined in claim 1, wherein: be equipped with governing valve (32) on air supply pipe (31), air supply pipe (31) stretch into the one end of drying cabinet (1) is connected with a plurality of tributary pipes (33), tributary pipe (33) are located on drying cabinet (1) are relative on the inner wall of connecting pipe (21) one side, a plurality of venthole (34) have been seted up on tributary pipe (33), and a plurality of venthole (34) are followed the length direction of tributary pipe (33) evenly sets up.

5. A test vacuum pulse dryer as defined in claim 1, wherein: a placing groove (42) is formed in the heating plate (4), the placing groove (42) is in spiral arrangement, and a heating pipe (43) is arranged in the placing groove (42).

6. A test vacuum pulse dryer as defined in claim 1, wherein: the heating plate (4) is provided with a positioning block (44), the baking tray (41) is provided with a positioning groove (45) for the positioning block (44) to be inserted into, and the positioning block (44) is abutted with the groove wall of the positioning block (44).

7. A test vacuum pulse dryer as defined in claim 1, wherein: be equipped with a plurality of fixed pipes (5) in drying cabinet (1), a plurality of fixed pipe (5) are followed the width direction setting of drying cabinet (1), a plurality of intercommunication has pulse shower nozzle (51) that a plurality of orientation baking tray (41) set up on fixed pipe (5), just pulse shower nozzle (51) all are on a parallel with baking tray (41) set up.

8. A test vacuum pulse dryer as defined in claim 7, wherein: be equipped with intake pipe (52) on drying cabinet (1), the one end of intake pipe (52) with gas pitcher (3) are linked together, the one end that intake pipe (52) stretches into in drying cabinet (1) is linked together with a plurality of fixed pipe (5), be equipped with control valve (53) on intake pipe (52).