Drying device for drying ceramic green body

Abstract

The utility model discloses a drying device for drying ceramic green bodies, which comprises a box body, a blanking platform and a controller, the box body comprises a drying chamber and a heating chamber, the drying chamber and the heating chamber are connected through a hot air pipe and an air return pipe, a track is arranged at the bottom of the drying chamber, and a material platform is arranged on the track. A hot air branch pipe and an air return branch pipe are arranged on the side wall of an inner cavity of the drying chamber, a humidifier is arranged on the upper portion of the inner cavity of the drying chamber, a moisture removal valve and a fresh air valve are arranged on the top of the drying chamber, an electric heating plate is arranged in the heating chamber, and a sliding rail is arranged on the discharging platform. By controlling the temperature and humidity in the drying chamber, the drying process is rapid and effective, the green body is not prone to cracking, high-quality drying of the green body is guaranteed, the drying time is shortened, and the purpose of efficient production is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic production, in particular to a drying device for drying ceramic blanks with uniform drying and low cost. Background Art

[0002] Ceramics is a general term for pottery and porcelain. It is non-absorbent, corrosion-resistant and has a hard texture. As a traditional ceramic handicraft, it is of high quality, beautiful in shape and has high artistic value.

[0003] When making ceramics, it is necessary to first select materials, mix ingredients, make blanks, dry, carve, outline, glaze and fire. Drying is to evaporate the moisture of the finished blank to form a hard state to prevent bubbles or cracks during firing, and also to reduce the stress of the blank to facilitate subsequent carving and glazing. Existing drying generally adopts natural ventilation and drying indoors or expended drying in the sun. Although the drying cost is low, the drying time is long and a large storage space is required, resulting in low production efficiency. It is also easily affected by environmental factors, making it impossible to effectively improve the drying quality and production efficiency. Utility Model Content

[0004] The utility model mainly solves the above-mentioned technical problems and provides a drying device for drying ceramic blanks with uniform drying and low cost.

[0005] In order to solve the above-mentioned technical problems, the utility model mainly adopts the following technical solutions:

[0006] The utility model discloses a drying device for drying a ceramic body, comprising:

[0007] The box body comprises a separated upper drying chamber and a lower heating chamber, wherein the inner chamber of the drying chamber and the inner chamber of the heating chamber are connected by a pipeline;

[0008] A drying chamber, used for placing and drying ceramic blanks, a door is provided at the front of the drying chamber, a track is provided at the bottom of the inner cavity of the drying chamber, a material table is provided on the track and moves along the track, and the ceramic blanks are placed on the material table;

[0009] A heating chamber is used to provide dry hot air, and a plurality of electric heating plates are arranged at the bottom of the inner cavity of the heating chamber;

[0010] The pipeline includes a hot air pipe and a return air pipe, and the hot air pipe is provided with an induced draft fan;

[0011] A controller, used to control the electric heating plate and the induced draft fan, including a temperature sensor and a humidity sensor placed in the inner cavity of the drying chamber and the inner cavity of the heating chamber, and a human-computer interaction interface is provided on the controller;

[0012] By using forced hot air drying and controlling the temperature and humidity of the drying environment, the drying process is fast and accurate, ensuring high-quality and safe drying of the green body, and also reducing drying time and drying space. The human-computer interactive controller can adopt the corresponding drying process according to the type, quantity and size of the ceramics to achieve the purpose of precise control and efficient production.

[0013] Preferably, a plurality of hot air branch pipes connected to the hot air pipe are provided on one side wall of the drying chamber, and a plurality of air outlets are arranged at intervals on the hot air branch pipes; a plurality of return air branch pipes connected to the return air pipe are provided on the other side wall of the drying chamber, and a plurality of return air outlets are arranged at intervals on the return air branch pipes; stratospheric hot air circulation is adopted in the drying chamber, so that the drying process of the ceramic body is uniform and rapid, and the drying quality is good.

[0014] Preferably, a dehumidification valve and a fresh air valve which are in communication with the drying chamber and can adjust the air volume are provided on the top of the drying chamber. The dehumidification valve and the fresh air valve are electrically connected to the controller. The humidity of the drying chamber can be flexibly increased, or the moisture in the drying chamber can be discharged, or external fresh air can be introduced according to the parameters of the drying chamber and the heating chamber, so that the drying process can be accurate and smooth.

[0015] Preferably, a humidifier is provided on the top of the inner cavity of the drying chamber, and humidification operation is performed according to the environmental parameters in the drying chamber to prevent the ceramic body from cracking due to over-drying during the drying process, resulting in drying failure.

[0016] Preferably, a heat exchanger is provided in the heating chamber, the inlet end of the heat exchanger is connected to the exhaust gas pipe of an external ceramic kiln, and the outlet end of the heat exchanger is connected to the exhaust gas discharge pipe, so as to introduce the high-temperature exhaust gas of the external ceramic kiln, and through the heat exchanger, part of the exhaust energy of the ceramic kiln is converted into drying energy of the green body, thereby reducing the drying cost.

[0017] Preferably, an electric valve is provided at the inlet end of the heat exchanger, and the heat exchanger is connected to the exhaust gas pipe of an external ceramic kiln through the electric valve. The electric valve is electrically connected to the controller, and the opening of the electric valve can be flexibly adjusted according to environmental parameters such as temperature and humidity in the drying chamber and exhaust gas temperature, so as to accurately control the inner cavity temperature of the drying chamber and ensure the drying quality of the ceramic body.

[0018] Preferably, the outer surfaces of the box and the pipeline are both provided with a thermal insulation layer.

[0019] Preferably, the front part of the box body is also provided with a liftable unloading platform, and the surface of the unloading platform is provided with a slide rail, which corresponds to the track in the drying chamber. The material platform can be translated between the unloading platform and the drying chamber by means of the track and the slide rail connected as one. The unloading platform is designed as a liftable structure, which is convenient for closing the box door and ensuring the airtightness of the drying box.

[0020] The beneficial effects of the utility model are as follows: the ceramic body drying process adopts forced temperature-controlled drying, and by accurately controlling the temperature, humidity and hot air volume of the drying environment, the drying process is fast and effective and the body is not easy to crack, which not only ensures the high-quality drying of the body, but also reduces the drying time. At the same time, by making full use of the high-temperature exhaust gas of the ceramic kiln, the drying cost can also be effectively reduced to achieve the purpose of efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 yes Figure 1 Side view of the structure

[0023] Figure 3 It is another structural schematic diagram of the utility model.

[0024] In the figure, 1. drying chamber, 2. heating chamber, 3. ceramic body, 4. box door, 5. track, 6. material table, 7. electric heating plate, 8. hot air duct, 9. return air duct, 10. induced draft fan, 11. controller, 12. hot air branch pipe, 13. return air branch pipe, 14. dehumidification valve, 15. fresh air valve, 16. humidifier, 17. heat exchanger, 18. exhaust gas duct, 19. exhaust gas discharge pipe, 20. electric valve, 21. unloading platform, 22. slide rail. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0026] Embodiment 1: A drying device for drying a ceramic body according to Embodiment 1, such as Figure 1 and Figure 2 As shown, including:

[0027] The box body comprises an upper drying chamber 1 and a lower heating chamber 2 which are separated. The inner cavity of the drying chamber and the inner cavity of the heating chamber are connected by a pipe, and the outer surfaces of the box body and the pipe are both paved with a heat-insulating layer;

[0028] A drying chamber is used to place and dry the ceramic blank 3. A door 4 is installed at the front of the drying chamber. A track 5 is designed at the bottom of the inner cavity of the drying chamber. A material table 6 that can be translated along the track is installed on the track. The ceramic blank to be dried is placed on the material table;

[0029] A heating chamber, used to provide dry hot air, with a plurality of electric heating plates 7 installed at the bottom of the inner cavity of the heating chamber;

[0030] The pipeline includes a hot air pipe 8 and a return air pipe 9, and the hot air pipe is provided with an induced draft fan 10;

[0031] The controller 11 is used to control the electric heating plate and the induced draft fan, including a temperature sensor and a humidity sensor placed in the inner cavity of the drying chamber and the inner cavity of the heating chamber, and a human-computer interaction interface is provided on the controller;

[0032] A plurality of hot air branch pipes 12 connected to the hot air pipe are designed on one side wall of the drying chamber, and a plurality of air outlets are arranged at intervals on the above-mentioned hot air branch pipes; a plurality of return air branch pipes 13 connected to the return air pipe are designed on the other side wall of the drying chamber, and a plurality of return air outlets are arranged at intervals on the above-mentioned return air branch pipes; the hot air can flow through the ceramic blanks horizontally and dry the ceramic blanks; a dehumidification valve 14 and a fresh air valve 15 which are communicated with the drying chamber and can adjust the air volume are designed on the top of the drying chamber, and a humidifier 16 is installed; the dehumidification valve, fresh air valve and humidifier are all electrically connected to the controller; a liftable unloading platform 21 is arranged at the front of the drying chamber, and a slide rail 22 corresponding to the track in the drying chamber is arranged on the unloading platform; the material platform can be translated between the unloading platform and the drying chamber through the integrated track and slide rail, so as to facilitate the entry and exit of the ceramic blanks.

[0033] When in use, the ceramic bodies to be dried are placed on the material table located on the slide rail of the unloading platform in turn, and pushed into the drying chamber through the slide rail and the track. Then the unloading platform descends, the box door is closed, and the controller is turned on. At this time, the electric heating plate in the inner cavity of the heating chamber is energized and generates heat. The controller collects parameters such as the temperature sensor and humidity sensor in the drying chamber and the heating chamber in real time and controls the electric heating plate. When the temperature in the heating chamber reaches the process requirements, the induced draft fan starts to work, and the hot air in the heating chamber is introduced into the drying chamber, and is sent out through multiple air outlets on the hot air branch pipe, and then merged into the reflux pipe through the return air outlet of the reflux branch pipe and discharged into the heating chamber for further heating, and the cycle continues. The ceramic body is dried by forced hot air advection. The advection of hot air ensures the uniformity and accuracy of the drying process. When the controller detects that the humidity in the drying room does not meet the process requirements, the humidifier is turned on to humidify the drying room to prevent the ceramic body from cracking due to excessive drying. When the controller detects that the humidity is too high, the dehumidification valve is opened to discharge the humid air. The fresh air valve can also be opened to introduce external fresh air for supplement and adjustment. After the above-mentioned hot air circulation drying, the ceramic body is dried evenly and the time is shortened, which effectively improves the drying efficiency and drying quality, and correspondingly reduces the large space required for natural drying.

[0034] When drying is completed, the controller turns off the electric heating plate and opens the fresh air valve to cool the drying room evenly or naturally to the process temperature or room temperature, then opens the box door, raises the unloading platform, and pulls the material table to the unloading platform to complete the drying operation of the ceramic body.

[0035] Embodiment 2: A drying device for drying a ceramic body according to Embodiment 2, such as Figure 3As shown, the drying device is also designed with a heat exchanger 17 in the heating chamber. The inlet end of the heat exchanger is connected to the exhaust pipe 18 of the external ceramic kiln through the electric valve 20, and the outlet end of the heat exchanger is connected to the external exhaust gas discharge pipe 19. The electric valve is electrically connected to the controller. The high-temperature exhaust gas generated by the ceramic kiln flows into the heat exchanger for heat exchange through the opening control of the electric valve, and the heat in the exhaust gas is transferred to the air in the heating chamber to heat the air in the heating chamber. The low-temperature exhaust gas after heat release is finally discharged through the exhaust gas discharge pipe. If the heat is insufficient, the electric heating plate is used for auxiliary heating to make the air in the heating chamber meet the process requirements. Adding a heat exchanger design in the heating chamber can convert the discharged high-temperature kiln exhaust gas energy into dry hot air energy, which can effectively reduce the energy consumption of the drying process and reduce the drying cost. The other parts of this embodiment 2 are similar to the corresponding parts of embodiment 1 and will not be repeated herein.

[0036] In the description of the present utility model, technical terms such as "upper", "lower", "front", "back", "left", "right", "longitudinal", "horizontal", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing and understanding the technical scheme of the present utility model. The above description does not limit the present utility model, and the present utility model is not limited to the examples described above. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present utility model should be deemed to be within the scope of protection of the present utility model.

Claims

1. A drying device for drying a ceramic body, characterized in that: The drying device comprises: The box body comprises an upper drying chamber (1) and a lower heating chamber (2) which are separated, wherein the inner cavity of the drying chamber and the inner cavity of the heating chamber are connected via a pipeline; A drying chamber for placing ceramic blanks (3), a chamber door (4) being provided at the front of the drying chamber, a track (5) being provided at the bottom of the inner cavity of the drying chamber, a material table (6) being provided on the track and being movable along the track, and the ceramic blanks being placed on the material table; A heating chamber, used for providing dry hot air, wherein a plurality of electric heating plates (7) are provided at the bottom of the inner cavity of the heating chamber; The pipeline comprises a hot air pipe (8) and a return air pipe (9), wherein the hot air pipe is provided with an induced draft fan (10); The controller (11) is used to control the electric heating plate and the induced draft fan, and comprises a temperature sensor and a humidity sensor placed in the inner cavity of the drying chamber and the inner cavity of the heating chamber. The controller is provided with a human-computer interaction interface.

2. A drying device for drying a ceramic body according to claim 1, characterized in that: A plurality of hot air branch pipes (12) connected to the hot air pipe (8) are provided on one side wall of the drying chamber (1), and a plurality of air outlets are arranged at intervals on the hot air branch pipes; a plurality of return air branch pipes (13) connected to the return air pipe (9) are provided on the other side wall of the drying chamber, and a plurality of return air outlets are arranged at intervals on the return air branch pipes.

3. A drying device for drying a ceramic body according to claim 1 or 2, characterized in that: The top of the drying chamber (1) is provided with a dehumidification valve (14) and a fresh air valve (15) which are in communication with the drying chamber and can adjust the air volume. The dehumidification valve and the fresh air valve are electrically connected to the controller.

4. A drying device for drying a ceramic body according to claim 3, characterized in that: A humidifier (16) is provided at the top of the inner cavity of the drying chamber.

5. A drying device for drying a ceramic body according to claim 1, characterized in that: A heat exchanger (17) is provided in the heating chamber (2), the inlet end of the heat exchanger is connected to an exhaust gas pipeline (18) of an external ceramic kiln, and the outlet end of the heat exchanger is connected to an exhaust gas discharge pipe (19).

6. A drying device for drying a ceramic body according to claim 5, characterized in that: The inlet end of the heat exchanger (17) is provided with an electric valve (20), and the heat exchanger is connected to the exhaust gas pipeline (18) of the external ceramic kiln through the electric valve, and the above-mentioned electric valve is electrically connected to the controller.

7. A drying device for drying a ceramic body according to claim 1, characterized in that: The outer surfaces of the box and the pipeline are both provided with a heat-insulating layer.

8. A drying device for drying ceramic green bodies according to claim 1, characterized in that: The front part of the box body is also provided with a liftable unloading platform (21), and the surface of the unloading platform is provided with a slide rail (22), and the slide rail corresponds to the track in the drying chamber.

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