Conical vacuum dryer

Abstract

The utility model discloses a conical vacuum dryer, and relates to the technical field of vacuum dryers. Comprising a conical barrel, a top flange of the conical barrel is connected with an upper seal head, a support is mounted on the upper seal head, a gear motor is mounted on the support, and a gradually-changed spiral shaft is arranged in the conical barrel. According to the conical vacuum drying machine, the sintering net module is installed in the discharging opening in the bottom of the conical barrel, the liquid discharging opening is formed below the sintering net module, an additive is added through the feeding opening, under the action of the gradual change spiral shaft, materials and the additive are fully stirred and mixed, the mixture is filtered through the sintering net module, and the additive is discharged through the liquid discharging opening; then clean water is added into the water inlet to wash the materials, after washing is completed, water is discharged through the liquid outlet, the materials can be blocked in the barrel by the sintering net module and cannot be discharged along with additives, water and the like, and therefore the liquid adding reaction and cleaning functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum dryers, in particular to a conical vacuum dryer. Background Art

[0002] Single cone vacuum dryer is suitable for medicine, chemical industry, food, metallurgy and building materials industries. It is used for mixing and drying various materials such as powder, crystal, granular, etc. When drying materials, the single cone vacuum dryer puts the dried materials in a vacuum state, and indirectly heats the materials through the jacket heat medium of the drying container to achieve the purpose of drying. During the drying process, the spiral belt rotates slowly, constantly turning the dried materials to update the drying surface, accelerating the evaporation of the liquid contained in the dried materials, and constantly sucking out the container through the vacuum pump. If the discharged liquid needs to be recovered, a recovery device can be added for recovery. The spiral belt rotation is provided with forward and reverse rotation, so as to make full use of the entire heat transfer area in the container to improve the drying efficiency.

[0003] Although the existing single cone vacuum dryer can achieve the purpose of drying materials, it also has shortcomings. It can only play the role of mixing and drying. For some materials that need to be added with liquid for reaction and cleaning, it cannot meet the requirements of adding liquid and draining liquid. Utility Model Content

[0004] The utility model provides a conical vacuum dryer to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conical vacuum dryer, comprising a conical cylinder, the top flange of the conical cylinder is connected to an upper head, and a support is installed on the upper head, a reduction motor is installed on the support, a gradual spiral shaft is arranged in the conical cylinder, and the gradual spiral shaft is connected to the output shaft end of the reduction motor, a feed port, a water inlet and a vacuum port are respectively arranged on the upper head, a jacket is arranged on the outside of the conical cylinder, a discharge port is arranged at the bottom of the conical cylinder, a sintered mesh module is installed in the discharge port, a liquid discharge port is arranged at the discharge port, and a discharge ball valve is fixedly connected to the bottom of the discharge port.

[0006] Furthermore, the sintered mesh module is a perforated plate adapted to the shape of the discharge port, and the through holes of the perforated plate are provided with sintered mesh covering the through holes.

[0007] Furthermore, an axial hole is provided at the bottom of the support, and the shaft of the gradual spiral shaft passes through the axial hole upwards.

[0008] Furthermore, a shaft seal is arranged in the shaft hole, and the shaft seal is located between the shaft hole and the shaft rod of the gradual spiral shaft.

[0009] Furthermore, a heat exchange medium inlet is provided at the upper portion of the jacket, and a heat exchange medium outlet is provided at the bottom thereof.

[0010] Furthermore, an overflow port is provided on the upper portion of the conical cylinder, and a thermometer is installed on the upper portion of the conical cylinder.

[0011] Furthermore, a filter screen is installed in the vacuum port, and the drain port is located below the sintering mesh module.

[0012] Compared with the prior art, the utility model provides a conical vacuum dryer, which has the following beneficial effects:

[0013] The conical vacuum dryer has a sintered mesh module installed in the discharge port at the bottom of the conical cylinder, and a liquid discharge port is arranged below the sintered mesh module. Additives are added through the feed port. Under the action of the gradual spiral shaft, the material and the additive are fully stirred and mixed. After being filtered by the sintered mesh module, the additive is discharged through the liquid discharge port. Then, clean water is added to the water inlet to wash the material. After washing, the water is discharged through the liquid discharge port. The material will be blocked in the cylinder by the sintered mesh module and will not be discharged along with the additive, water, etc., thereby realizing the liquid addition reaction and cleaning functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 This is a schematic diagram of a sintered mesh module of the present utility model.

[0017] In the figure: 1. conical cylinder; 2. upper head; 3. support; 4. reduction motor; 5. gradual spiral shaft; 6. feed inlet; 7. water inlet; 8. vacuum port; 9. jacket; 10. discharge port; 11. sintering mesh module; 12. drain port; 13. discharge ball valve; 14. shaft hole; 15. shaft seal; 16. heat exchange medium inlet; 17. heat exchange medium outlet; 18. overflow port; 19. thermometer; 20. filter screen. Implementation

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 3The utility model discloses a conical vacuum drying machine, comprising a conical cylinder 1, the top flange of the conical cylinder 1 is connected with an upper head 2, and a support 3 is installed on the upper head 2, a reduction motor 4 is installed on the support 3, a gradual spiral shaft 5 is arranged in the conical cylinder 1, and the gradual spiral shaft 5 is connected to the output shaft end of the reduction motor 4, a feed port 6, a water inlet 7 and a vacuum port 8 are respectively arranged on the upper head 2, a jacket 9 is arranged on the outer side of the conical cylinder 1, a discharge port 10 is arranged at the bottom of the conical cylinder 1, and a sintered mesh module 11 is installed in the discharge port 10, and a drainage port 12 is arranged at the discharge port 10 A sintered mesh module 11 is installed in the discharge port 10 at the bottom of the conical cylinder 1, and a drain port 12 is set below the sintered mesh module 11. Additives are added through the feed port 6. Under the action of the gradual spiral shaft 5, the material and the additive are fully stirred and mixed. After being filtered by the sintered mesh module 11, the additive is discharged through the drain port 12, and then clean water is added to the water inlet 7 to wash the material. After washing, the water is discharged through the drain port 12. The material will be blocked in the cylinder by the sintered mesh module 11 and will not be discharged with the additives, water, etc., thereby realizing the liquid addition reaction and cleaning functions. A discharge ball valve 13 is fixedly connected to the bottom of the discharge port 10.

[0020] Specifically, the sintered mesh module 11 is a perforated plate adapted to the shape of the discharge port 10 , and the through holes of the perforated plate are provided with sintered mesh covering the through holes.

[0021] In this embodiment, a sintered mesh module 11 is provided at the discharge port 10. The sintered mesh module is a perforated plate with a plurality of through holes evenly arranged thereon. The sintered mesh is welded to the through holes to cover all the through holes, so that the material is blocked in the cylinder by the sintered mesh.

[0022] Specifically, a shaft hole 14 is provided at the bottom of the support 3 , and the shaft of the gradual spiral shaft 5 passes through the shaft hole 14 upwards.

[0023] In this embodiment, the shaft hole 14 is provided to facilitate the connection between the shaft of the gradual spiral shaft 5 and the reduction motor 4 .

[0024] Specifically, a shaft seal 15 is disposed in the shaft hole 14 , and the shaft seal 15 is located between the shaft hole 14 and the shaft rod of the gradual spiral shaft 5 .

[0025] In this embodiment, the shaft seal 15 is a friction seal or a stuffing box, which is used to prevent fluid, gas or dust in the equipment from leaking into the external environment, and also prevent external impurities from entering the interior of the equipment to ensure the normal operation of the equipment.

[0026] Specifically, a heat exchange medium inlet 16 is provided at the upper portion of the jacket 9 , and a heat exchange medium outlet 17 is provided at the bottom thereof.

[0027] In this embodiment, heat exchange medium (such as hot water) is added into the jacket 9 through the heat exchange medium inlet 16 to indirectly heat the material in the conical cylinder 1. After the material is dried, the heat exchange medium is discharged through the heat exchange medium outlet 17.

[0028] Specifically, an overflow port 18 is provided on the upper portion of the conical cylinder 1 , and a thermometer 19 is installed on the upper portion of the conical cylinder 1 .

[0029] In this embodiment, the overflow port 18 is provided to prevent excessive addition of clean water when adding clean water to wash materials, and the thermometer 19 is used to detect the temperature change in the cylinder in real time.

[0030] Specifically, a filter screen 20 is installed in the vacuum port 8 , and the drain port 12 is located below the sintering screen module 11 .

[0031] In this embodiment, the filter screen 20 is used to filter the material, and the drain port 12 is used to discharge additives or clean water. The material is blocked in the cylinder by the sintered mesh module 11 and will not be discharged along with the additives, water, etc.

[0032] When in use, a sintered mesh module 11 is installed in the discharge port 10 at the bottom of the conical cylinder 1, and a drain port 12 is set below the sintered mesh module 11. The material is added into the conical cylinder 1 through the feed port 6, and then the additive is added through the feed port 6. The reduction motor 4 drives the gradual spiral shaft 5 to rotate. Under the action of the gradual spiral shaft 5, the material and the additive are fully stirred and mixed. After being filtered by the sintered mesh module 11, the additive is discharged through the drain port 12, and then the material is washed by adding clean water to the water inlet 7. After washing, the water is discharged through the drain port 12. The material will be blocked in the cylinder by the sintered mesh module 11 and will not be discharged along with the additive, water, etc. Then the drain port 12 is closed, and the heat source is added into the jacket 9 to start drying. After drying, the discharge ball valve 13 is opened to discharge the material.

[0033] In summary, the conical vacuum dryer installs a sintered mesh module 11 in the discharge port 10 at the bottom of the conical cylinder 1, and sets a drain port 12 below the sintered mesh module 11. Additives are added through the feed port 6. Under the action of the gradual spiral shaft 5, the material and the additive are fully stirred and mixed. After being filtered by the sintered mesh module 11, the additive is discharged through the drain port 12, and then the material is washed by adding clean water to the water inlet 7. After washing, the water is discharged through the drain port 12. The material will be blocked in the cylinder by the sintered mesh module 11 and will not be discharged with the additives, water, etc., thereby realizing the liquid addition reaction and cleaning functions. The conical vacuum dryer in the embodiment of the present application integrates the three functions of liquid addition reaction / cleaning, mixing, and drying into one, eliminating the reaction and washing equipment of the previous process, saving equipment expenditure and equipment space, and reducing the time and manpower spent on material transfer, greatly improving production efficiency and reducing labor costs.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conical vacuum dryer, comprising a conical cylinder (1), characterized in that: The top flange of the conical cylinder (1) is connected to an upper head (2), and a support (3) is installed on the upper head (2), and a reduction motor (4) is installed on the support (3). A gradually changing spiral shaft (5) is arranged in the conical cylinder (1), and the gradually changing spiral shaft (5) is connected to the output shaft end of the reduction motor (4). A feed port (6), a water inlet (7) and a vacuum port (8) are respectively arranged on the upper head (2). A jacket (9) is arranged on the outside of the conical cylinder (1). A discharge port (10) is arranged at the bottom of the conical cylinder (1), and a sintered mesh module (11) is installed in the discharge port (10). A liquid discharge port (12) is arranged at the discharge port (10), and a discharge ball valve (13) is fixedly connected to the bottom of the discharge port (10).

2. A conical vacuum dryer according to claim 1, characterized in that: The sintered mesh module (11) is a perforated plate adapted to the shape of the discharge port (10), and a sintered mesh covering the through hole is arranged at the through hole of the perforated plate.

3. A conical vacuum dryer according to claim 1, characterized in that: The bottom of the support (3) is provided with an axial hole (14), and the shaft of the gradual spiral shaft (5) extends upwards through the axial hole (14).

4. A conical vacuum dryer according to claim 3, characterized in that: A shaft seal (15) is arranged in the shaft hole (14), and the shaft seal (15) is located between the shaft hole (14) and the shaft rod of the gradually changing spiral shaft (5).

5. A conical vacuum dryer according to claim 1, characterized in that: The upper portion of the jacket (9) is provided with a heat exchange medium inlet (16), and the bottom portion thereof is provided with a heat exchange medium outlet (17).

6. A conical vacuum dryer according to claim 1, characterized in that: An overflow port (18) is provided at the upper portion of the conical cylinder (1), and a thermometer (19) is installed at the upper portion of the conical cylinder (1).

7. A conical vacuum dryer according to claim 1, characterized in that: A filter screen (20) is installed in the vacuum port (8), and the liquid discharge port (12) is located below the sintered mesh module (11).

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