Vacuum dehumidifying and drying device

Abstract

The utility model discloses a vacuum dehumidification drying device, and belongs to the field of vacuum dehumidification. A vacuum dehumidifying and drying device comprises a preheating tank, a material storage tank and a vacuum tank, the top of a hopper is connected with a material suction machine through a material suction machine connecting pipe, the preheating tank and the vacuum tank are connected through a material guide pipe, the vacuum tank and the material storage tank are connected through a material guide pipe, and a heat preservation assembly is arranged on the outer side surface of the material guide pipe between the preheating tank and the vacuum tank. The heat preservation assembly comprises a heat preservation pipe wrapping the outer side of the material guide pipe between the preheating tank and the vacuum tank, a second heating resistance wire connected with the material guide pipe is arranged in the middle of the heat preservation pipe, and a first heating resistance wire is arranged at the end, connected with a hopper at the top of the vacuum tank, of the top of the heat preservation pipe. By means of the heat preservation assembly, heat preservation is conducted on the material guide pipe located between the preheating tank and the vacuum tank, meanwhile, the temperature of materials entering the vacuum tank can be better kept by means of the first heating resistance wire and the second heating resistance wire, and the dehumidification efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum dehumidification technology, and in particular to a vacuum dehumidification and drying device. Background Technology

[0002] Vacuum dehumidification drying equipment is a device that uses vacuum technology to lower the boiling point of water, thereby quickly removing moisture from materials. Its working principle involves placing the material to be dried in a low-pressure environment using a vacuum pump, lowering the boiling point of water, accelerating moisture evaporation and removal, thus achieving the drying purpose. This technology is suitable for drying heat-sensitive materials because it can be carried out at lower temperatures, avoiding the damage to material quality caused by high temperatures.

[0003] A search revealed Chinese patent application number 202420282947.5, which discloses a vacuum dehumidification drying device, comprising: a preheating tank having a first inlet and a first outlet, the first inlet being connected to a silo to be dried; a vacuum tank for vacuum dehumidifying the preheated material, having a second inlet and a second outlet, the second inlet being connected to the first outlet, and a vacuum pump connected to the vacuum tank; and a storage tank for storing the dried material, having a third inlet and a third outlet, the third inlet being connected to the second outlet, and the third outlet being connected to a material-using device. This vacuum dehumidification drying device preheats the material before it enters the vacuum tank. Utilizing the property that the boiling point of water decreases with decreasing pressure in a vacuum, the preheating temperature accelerates the evaporation and removal of moisture from the material, effectively saving heating time in traditional drying devices, saving energy, and improving work efficiency.

[0004] Although the aforementioned patent can achieve dehumidification of materials, when transferring preheated materials, the materials are preheated and then enter the vacuum tank through pipes. During the transportation process in the pipes, due to the lack of insulation measures, a lot of heat will be lost, causing the temperature of the materials themselves to drop, which will affect the efficiency of subsequent vacuum dehumidification.

[0005] Therefore, vacuum dehumidification and drying equipment is urgently needed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art that a lot of heat is lost in the pipeline during the transportation process, resulting in a low temperature of the material after it enters the vacuum tank, which affects the evaporation efficiency of the moisture inside the material. Therefore, a vacuum dehumidification and drying device is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A vacuum dehumidification and drying device includes a preheating tank, a storage tank, and a vacuum tank. A heater is provided on the inner wall of the preheating tank. A hopper is provided at the top of each of the preheating tank, the storage tank, and the vacuum tank. The top of each hopper is connected to a suction machine via a suction machine connecting pipe. A guide pipe connects the preheating tank and the vacuum tank, as well as the vacuum tank and the storage tank. One end of the guide pipe between the preheating tank and the vacuum tank is connected to a discharge valve at the bottom of the preheating tank, and the other end is connected to the hopper at the top of the vacuum tank. An insulation component is provided on the outer surface of the guide pipe between the preheating tank and the vacuum tank. The insulation component includes an insulation tube covering the outside of the guide pipe between the preheating tank and the vacuum tank. A second heating resistance wire connected to the guide pipe is provided in the middle of the insulation tube, and a first heating resistance wire is provided at the top end of the insulation tube, located at the hopper connection point at the top of the vacuum tank.

[0009] As a preferred technical solution of this application, a feed valve is provided at the connection between the bottom of the hopper and the preheating tank, the storage tank and the vacuum tank.

[0010] As a preferred technical solution of this application, the bottom of the preheating tank, the storage tank and the vacuum tank are all provided with a discharge valve.

[0011] As a preferred technical solution of this application, the bottom of the preheating tank, the storage tank and the vacuum tank are all provided with a bracket, and the top four corners of the bracket are all provided with support rod assemblies.

[0012] As a preferred technical solution of this application, the support rod assembly includes a support platform connected to the support frame plate, a support rod is installed on the top of the support platform, a connecting block is installed on the top of the support rod, a connecting plate is installed on one end of the connecting block, and the outer side of the connecting plate is an arc surface.

[0013] As a preferred technical solution of this application, the top of the preheating tank is provided with a preheating tank cover plate, and the preheating tank cover plate is provided with a material turning mechanism.

[0014] As a preferred technical solution of this application, the material turning mechanism includes a drive motor installed on the top of the preheating tank cover, and the output end of the drive motor is connected to a spiral material turning shaft.

[0015] Compared with the prior art, the present invention provides a vacuum dehumidification and drying device, which has the following beneficial effects:

[0016] 1. This vacuum dehumidification and drying device, through the set heat preservation components, achieves heat preservation of the feed pipe located between the preheating tank and the vacuum tank. At the same time, with the help of the first heating resistance wire and the second heating resistance wire, the temperature of the material entering the vacuum tank can be better maintained, thereby improving the dehumidification efficiency and solving the problem that the existing technology loses a lot of heat in the pipeline during the conveying process, which affects the dehumidification efficiency.

[0017] 2. This vacuum dehumidification and drying device, through a material turning mechanism set inside the preheating tank, realizes the turning of the material inside the preheating tank while heating. During the turning, the material at the bottom can also be turned out, making the material inside the tank more evenly heated, improving heating efficiency, and accelerating the dehumidification and drying speed. It solves the problems of uneven heating caused by lack of stirring during heating in the prior art, or the inconvenience of turning the material at the bottom to the top during stirring, resulting in uneven temperature between the upper and lower parts of the material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the material turning mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the thermal insulation component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the support rod assembly structure of this utility model.

[0022] In the picture:

[0023] 1. Preheating tank; 2. Preheating tank cover; 3. Feed valve; 4. Hopper; 5. Feed pipe; 6. Insulation assembly; 601. First heating resistance wire; 602. Insulation pipe; 603. Second heating resistance wire; 7. Vacuum pump connecting pipe; 8. Guide pipe; 9. Support rod assembly; 901. Connecting plate; 902. Connecting block; 903. Support rod; 904. Support platform; 10. Bracket; 11. Discharge valve; 12. Spiral turning shaft; 13. Drive motor; 14. Heater; 15. Suction machine connecting pipe; 16. Storage tank; 17. Vacuum tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0025] Reference Figures 1-4 A vacuum dehumidification and drying device includes a preheating tank 1, a storage tank 16, and a vacuum tank 17. The material introduced into the preheating tank 1 is heated. After heating, the material inside the preheating tank 1 is introduced into the vacuum tank 17 through a feed pipe 8 by a suction machine. Then, the vacuum tank 17 is evacuated and dehumidified by a vacuum pump connected to a vacuum pump connection pipe 7. After dehumidification, the material is introduced into the storage tank 16 for storage by the feed machine through the feed pipe 8 connecting the vacuum tank 17 and the storage tank 16. Vacuum dehumidification can effectively reduce the boiling point of water and reduce energy consumption during use, thus saving energy and reducing emissions.

[0026] The tops of the preheating tank 1, storage tank 16, and vacuum tank 17 are all equipped with hoppers 4. The bottom of each hopper 4 has a feed valve 3 at its connection point with the preheating tank 1, storage tank 16, and vacuum tank 17. The top of each hopper 4 is connected to a suction machine via a suction machine connecting pipe 15. The suction machine draws material into the hopper 4 through a feed pipe 5 on one side of the hopper 4. Then, the material is injected into the tank body by opening and closing the feed valve 3 for preheating, dehumidification, and storage. The bottoms of each preheating tank 1, storage tank 16, and vacuum tank 17 are equipped with discharge valves 11. These valves connect the preheating tank 1 and vacuum tank 17, as well as the vacuum tank 17 and the storage tank 17. All tanks 16 are connected by a guide pipe 8. One end of the guide pipe 8 located between the preheating tank 1 and the vacuum tank 17 is connected to the discharge valve 11 at the bottom of the preheating tank 1, and the other end of the guide pipe 8 is connected to the hopper 4 at the top of the vacuum tank 17. The outer surface of the guide pipe 8 between the preheating tank 1 and the vacuum tank 17 is provided with a heat insulation component 6. When heating, the material inside the preheating tank 1 is heated and then transported to the vacuum tank 17 through the guide pipe 8. During the transportation process in the guide pipe 8, the heat insulation component 6 improves the heat insulation effect of the guide pipe 8, reduces heat loss during transportation, and is more energy-efficient and emission-reducing.

[0027] Reference Figure 1 and Figure 4Furthermore, the preheating tank 1, storage tank 16, and vacuum tank 17 are all supported by a bracket 10 located at the bottom of the tank. The bracket 10 includes a support frame plate and four support legs installed at the bottom corners of the support frame plate. Support rod assemblies 9 are provided at the top four corners of the support frame plate. The support rod assemblies 9 improve the stability of the preheating tank 1, storage tank 16, and vacuum tank 17 during use, making them more stable and safer. The support rod assembly 9 includes a support platform 904 connected to the support frame plate. A support rod 903 is installed on the top of the support platform 904. A connecting block 902 is installed at the top of the support rod 903. A connecting plate 901 is installed at one end of the connecting block 902. The outer side of the connecting plate 901 is curved. During installation, the connecting plate 901 contacts the outer surface of the preheating tank 1, storage tank 16, and vacuum tank 17 to reinforce them and improve their stability during use.

[0028] Reference Figure 2 Furthermore, a heater 14 is provided on the inner wall of the preheating tank 1 to heat the material inside the preheating tank 1. A preheating tank cover 2 is provided on the top of the preheating tank 1, and a material turning mechanism is provided on the preheating tank cover 2. The material turning mechanism includes a drive motor 13 installed on the top of the preheating tank cover 2. The output end of the drive motor 13 is connected to a spiral turning shaft 12. The drive motor 13 drives the spiral turning shaft 12 to rotate, which stirs and turns the material inside the preheating tank 1. During heating, the spiral turning shaft 12 can continuously turn the material at the bottom of the preheating tank 1 to the top, effectively improving the uniformity of heating and improving the heating efficiency.

[0029] Reference Figure 1 and Figure 4 Furthermore, the insulation component 6 includes an insulation pipe 602 covering the outside of the feed pipe 8 between the preheating tank 1 and the vacuum tank 17. The insulation pipe 602 is made of insulation cotton or the like and is used to insulate the material inside the feed pipe 8 after covering it. A second heating resistance wire 603 connected to the feed pipe 8 is provided in the middle of the insulation pipe 602. The material inside the feed pipe 8 is heated by the second heating resistance wire 603 to maintain its temperature stability. A first heating resistance wire 601 is provided at the top of the insulation pipe 602 at the end connected to the top hopper 4 of the vacuum tank 17. The material at the outlet end of the feed pipe 8 is heated by the first heating resistance wire 601 to maintain its outlet temperature stability. This improves the dehumidification efficiency during vacuum dehumidification in the vacuum tank 17 and also effectively reduces the moisture content inside the material.

[0030] Specifically, during operation / use of this vacuum dehumidification and drying device: the material enters the preheating tank 1 for heating. During the heating process, the material inside the preheating tank 1 is turned over by the turning mechanism. After preheating, the suction machine guides the material into the hopper 4 at the top of the vacuum tank 17 through the guide pipe 8 connecting the preheating tank 1 and the vacuum tank 17. Then, the feed valve 3 is opened to guide the material into the vacuum tank 17, and the vacuum pump is started to dehumidify and dry the inside of the vacuum tank 17. After drying, the suction machine guides the material in the vacuum tank 17 into the suction machine connecting pipe 15 through the guide pipe 8 connecting the vacuum tank 17 and the storage tank 16. Then, the material is guided into the storage tank 16 for storage. The material in the storage tank 16 can be discharged through the discharge valve 11 at the bottom of the storage tank 16.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum dehumidifying drying apparatus comprising a preheating tank (1), a storage tank (16) and a vacuum tank (17), characterized in that, The inner wall of the preheating tank (1) is provided with a heater (14), the top of the preheating tank (1), the storage tank (16) and the vacuum tank (17) is provided with a hopper (4), the top of the hopper (4) is connected with a suction machine through a suction machine connecting pipe (15), the preheating tank (1) and the vacuum tank (17) and the vacuum tank (17) and the storage tank (16) are connected through a material guide pipe (8), one end of the material guide pipe (8) between the preheating tank (1) and the vacuum tank (17) is communicated with the outlet valve (11) at the bottom of the preheating tank (1), the other end of the material guide pipe (8) is communicated with the hopper (4) at the top of the vacuum tank (17), the outer surface of the material guide pipe (8) between the preheating tank (1) and the vacuum tank (17) is provided with a heat preservation assembly (6), the heat preservation assembly (6) comprises a heat preservation pipe (602) wrapped outside the material guide pipe (8) between the preheating tank (1) and the vacuum tank (17), a second heating resistance wire (603) connected with the material guide pipe (8) is arranged in the middle of the heat preservation pipe (602), a first heating resistance wire (601) is arranged on one end of the top of the heat preservation pipe (602) connected with the hopper (4) at the top of the vacuum tank (17).

2. A vacuum dehumidifying and drying apparatus according to claim 1, wherein The bottom of the hopper (4) is provided with an inlet valve (3) at the connection with the preheating tank (1), the storage tank (16) and the vacuum tank (17).

3. A vacuum dehumidifying and drying apparatus according to claim 1, wherein The bottom of the preheating tank (1), the storage tank (16) and the vacuum tank (17) is provided with an outlet valve (11).

4. The vacuum dehumidifying and drying apparatus according to claim 1, wherein The bottom of the preheating tank (1), the storage tank (16) and the vacuum tank (17) is provided with a support (10), the top of the support (10) is provided with a support rod assembly (9) at four corner positions.

5. A vacuum dehumidifying and drying apparatus according to claim 4, wherein The support rod assembly (9) comprises a support table (904) connected with the support, a support rod (903) is installed on the top of the support table (904), a connecting block (902) is installed on the top end of the support rod (903), a connecting plate (901) is installed on one end of the connecting block (902), and the outer side of the connecting plate (901) is an arc surface.

6. A vacuum dehumidifying and drying apparatus according to claim 1, wherein The top of the preheating tank (1) is provided with a preheating tank cover plate (2), and the preheating tank cover plate (2) is provided with a material turning mechanism.

7. A vacuum dehumidifying and drying apparatus according to claim 6, wherein The material turning mechanism comprises a driving motor (13) installed on the top of the preheating tank cover plate (2), and a spiral material turning shaft (12) connected with the output end of the driving motor (13).

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