Drying device for caustic-burned magnesia powder production

Abstract

The utility model discloses a drying device for caustic-burned magnesia powder production, which relates to the technical field of drying devices and comprises a tank body, a hot air pipe is fixedly arranged on one side of the tank body, the upper end of the hot air pipe extends into the upper part of the tank body, the bottom of the tank body is connected with a connecting pipe, and the bottom of the connecting pipe is connected with a screw conveyer. One end of the spiral conveyor is connected with a hot air pipe, the lower end of the hot air pipe is connected with a heater and an air pump, an exhaust funnel is arranged on one side, far away from the hot air pipe, of the upper portion of the tank body, and a filter plate is fixedly arranged in the exhaust funnel. Light burning powder in the tank body can be discharged into the hot air pipe through the spiral conveyor, the discharge amount of the light burning powder can be controlled by controlling the rotating speed of the spiral conveyor, the light burning powder can be blown to the upper portion of the tank body from the bottom of the hot air pipe through hot air, and it is guaranteed that the light burning powder can make full contact with the hot air; meanwhile, vertical circulation of the light burning powder in the tank body is achieved, and the drying quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a drying device for the production of lightly calcined magnesium powder. Background Technology

[0002] Magnesite calcined at 750-1100℃ is called "light calcination", and its product is called light calcined magnesia powder, or simply light calcined powder. Light calcined powder is mainly used to manufacture cementitious materials, heat insulation and sound insulation building materials, and can also be used as ceramic raw materials. Light calcined powder needs to be dried during production.

[0003] For example, the utility model patent with announcement number CN211120434U discloses a light calcined powder drying equipment, including a frame and a tank. The tank is rotatably connected inside the frame. A screen is fixedly connected to the upper part of the inside of the tank. A rotating shaft is inserted into the middle of the inside of the tank. A driving device is fixedly connected to the lower part of the tank. The lower part of the rotating shaft passes through the tank and is fixedly connected to the main shaft of the driving device. A first sleeve is movably sleeved on the lower part of the outer wall of the rotating shaft.

[0004] However, existing drying equipment cannot fully contact the lightly burned powder with hot air during drying, resulting in poor drying effect and low efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a drying device for the production of light-burned magnesium powder, which solves the technical problem that the light-burned powder cannot fully contact the hot air during the drying process in existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A drying device for the production of lightly calcined magnesium powder includes a tank. A hot air pipe is fixedly installed on one side of the tank, with its upper end extending into the interior of the upper part of the tank. A connecting pipe is connected to the bottom of the tank, and a screw conveyor is connected to the bottom of the connecting pipe. One end of the screw conveyor is connected to the hot air pipe, and a heater and an air pump are connected to the lower end of the hot air pipe. An exhaust stack is installed on the upper part of the tank away from the hot air pipe, and a filter plate is fixedly installed inside the exhaust stack. The filter plate has a circular structure, and a rotating shaft is rotatably connected to the center of the filter plate. A crossbar is fixedly installed at one end of the rotating shaft inside the tank, and a brush is fixedly installed on the crossbar, with the brush in contact with the filter plate.

[0007] Preferably, a partition is fixedly installed on the inner side of the upper wall of the tank.

[0008] Preferably, a fan blade is fixedly installed at the other end of the rotating shaft and inside the exhaust pipe.

[0009] Preferably, the upper wall of the tank is provided with a feed pipe, and the lower side of the tank is provided with a discharge pipe.

[0010] This utility model provides a drying device for the production of light-burned magnesium powder, which has the following beneficial effects: hot air can be blown into the hot air pipe through an air pump and a heater; the light-burned powder in the tank can be discharged into the hot air pipe through a screw conveyor; the discharge amount of light-burned powder can be controlled by controlling the rotation speed of the screw conveyor; the hot air can blow the light-burned powder from the bottom of the hot air pipe to the top of the tank, ensuring that the light-burned powder can fully contact the hot air, and at the same time, the light-burned powder in the tank can be circulated up and down, ensuring the drying quality; when the gas passes through the exhaust pipe, it can blow the fan blades; and the filter plate can be cleaned by the brush, ensuring the filtration effect. Attached Figure Description

[0011] Figure 1 This is a front view of the internal structure of this utility model;

[0012] Figure 2 for Figure 1 A magnified view of part A in the image.

[0013] In the diagram: 1. Tank; 2. Hot air duct; 3. Connecting pipe; 4. Screw conveyor; 5. Exhaust stack; 6. Filter plate; 7. Heater; 8. Air pump; 9. Baffle plate; 10. Feed pipe; 11. Discharge pipe; 12. Shaft; 13. Crossbar; 14. Brush; 15. Fan blade. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figure 1-2 This utility model provides a technical solution: a drying device for the production of light-burned magnesium powder, comprising a tank 1, a hot air pipe 2 fixedly installed on one side of the tank 1, the upper end of the hot air pipe 2 extending into the upper interior of the tank 1, a connecting pipe 3 connected to the bottom of the tank 1, and a screw conveyor 4 connected to the bottom of the connecting pipe 3. One end of the screw conveyor 4 is connected to the hot air pipe 2, and the screw conveyor 4 can transport the light-burned powder in the tank 1 into the hot air pipe 2. A heater 7 and an air pump 8 are connected to the lower end of the hot air pipe 2, and hot air can be blown into the hot air pipe 2 through the heater 7 and the air pump 8, so that the powder enters from the bottom. The light calcined powder from the hot air pipe 2 is blown into the upper part of the tank body 1. An exhaust pipe 5 is installed on the side of the upper part of the tank body 1 away from the hot air pipe 2. A filter plate 6 is fixedly installed inside the exhaust pipe 5. The hot air containing moisture can be discharged from the tank body 1 through the exhaust pipe 5. The light calcined powder in the hot air is separated by the filter plate 6. The filter plate 6 has a circular structure. A rotating shaft 12 is rotatably connected to the center of the filter plate 6. A crossbar 13 is fixedly installed at one end of the rotating shaft 12 inside the tank body 1. A brush 14 is fixedly installed on the crossbar 13. The brush 14 is in contact with the filter plate 6. When the rotating shaft 12 rotates, the filter plate 6 can be cleaned by the brush 14.

[0016] As an embodiment of this utility model, a partition 9 is fixedly provided on the inner side of the upper wall of the tank 1. The partition 9 can prevent the gas-powder mixture sprayed from the hot air pipe 2 from directly contacting the filter plate 6, thereby reducing the filtration capacity of the filter plate 6.

[0017] As an embodiment of this utility model, a fan blade 15 is fixedly provided at the other end of the rotating shaft 12 and inside the exhaust pipe 5. When the gas is discharged through the exhaust pipe 5, it can blow the fan blade 15, thereby driving the rotating shaft 12 to rotate.

[0018] As an embodiment of the present invention, the upper wall of the tank body 1 is provided with a feed pipe 10, and the lower side of the tank body 1 is provided with a discharge pipe 11.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] The working principle and usage process of this utility model are as follows: In use, the light calcined powder is injected into the tank 1 through the feed pipe 10. The air pump 8 and heater 7 are started to blow hot air into the hot air pipe 2. The screw conveyor 4 is started to discharge the light calcined powder in the tank 1 into the hot air pipe 2. The discharge amount of light calcined powder is controlled by controlling the rotation speed of the screw conveyor 4. The hot air blows the light calcined powder from the bottom of the hot air pipe 2 to the top of the tank 1, ensuring that the light calcined powder can fully contact the hot air. After the air-powder mixture enters the tank 1, the hot air containing moisture can be discharged through the exhaust pipe 5. The light calcined powder in the gas is separated through the filter plate 6. When the gas passes through the exhaust pipe 5, it can blow the fan blades 15, which can make the rotating shaft 12 rotate. When the rotating shaft 12 rotates, the filter plate 6 can be cleaned by the brush 14 to ensure the filtration effect of the filter plate 6. After drying, the light calcined powder can be discharged through the discharge pipe 11.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for the production of light-burned magnesium powder, characterized in that, Includes a tank body (1), on one side of which a hot air pipe (2) is fixedly installed. The upper end of the hot air pipe (2) extends into the upper interior of the tank body (1). A connecting pipe (3) is connected to the bottom of the tank body (1), and a screw conveyor (4) is connected to the bottom of the connecting pipe (3). One end of the screw conveyor (4) is connected to the hot air pipe (2). A heater (7) and an air pump (8) are connected to the lower end of the hot air pipe (2). The upper part of the tank body (1) is... An exhaust pipe (5) is provided on the side away from the hot air pipe (2). A filter plate (6) is fixedly installed inside the exhaust pipe (5). The filter plate (6) has a circular structure. A rotating shaft (12) is rotatably connected to the center of the filter plate (6). A crossbar (13) is fixedly installed at one end of the rotating shaft (12) inside the tank (1). A brush (14) is fixedly installed on the crossbar (13). The brush (14) is in contact with the filter plate (6).

2. The drying apparatus for producing light-burned magnesium powder according to claim 1, characterized in that, A partition (9) is fixedly installed on the inner side of the upper wall of the tank (1).

3. A drying apparatus for the production of light-burned magnesium powder according to claim 1, characterized in that, A fan blade (15) is fixedly installed at the other end of the rotating shaft (12) and inside the exhaust pipe (5).

4. A drying apparatus for the production of light-burned magnesium powder according to claim 1, characterized in that, The upper wall of the tank (1) is provided with a feed pipe (10), and the lower side of the tank (1) is provided with a discharge pipe (11).

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