Continuous drying equipment for wollastonite powder production

Abstract

The utility model discloses continuous drying equipment for wollastonite powder production, which comprises a shell, a crushing bin and a drying bin are arranged in the shell, a feed hopper is arranged on one side of the crushing bin, a sealing cover is hinged to the top side of the feed hopper, and a first rotating shaft and a second rotating shaft are rotatably connected in the crushing bin. A conveying pipe is inserted into the crushing bin, a second powder negative pressure conveying pump is arranged on the conveying pipe, one end of the conveying pipe is connected with a flow divider, the flow divider is fixed to the top end of the drying bin, and a heating pipe is arranged on an interlayer of the outer wall of the drying bin; the bottom side of the drying bin is connected with a continuous pipe, the continuous pipe is provided with a first powder negative pressure conveying pump and a one-way valve, and the top end of the continuous pipe is connected with one side of the drying bin. According to the wollastonite powder drying device, a large amount of wollastonite powder can be rapidly and circularly dried in a flowing mode, so that the drying uniformity of the wollastonite powder is improved, and the drying efficiency of the wollastonite powder is improved.

Description

Technical Field

[0001] This utility model relates to the field of wollastonite powder production technology, specifically a continuous drying device for wollastonite powder production. Background Technology

[0002] Wollastonite is a naturally occurring calcium silicate mineral. It usually exists in the form of needle-like or fibrous crystals and has a wide range of industrial applications. Wollastonite powder is a powdered product made by crushing, grinding and other processing steps of wollastonite ore.

[0003] Wollastonite powder needs to be crushed and dried during the production process. However, the existing drying methods for wollastonite powder usually use belt conveyor drying and in-drum stirring drying. These two methods have the problem of accumulation and incomplete drying when there is a large amount of material. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a continuous drying device for the production of wollastonite powder, so as to solve the problem of wollastonite powder being difficult to dry completely as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous drying device for the production of wollastonite powder, comprising a shell, wherein a crushing chamber and a drying chamber are arranged inside the shell, a feed hopper is arranged on one side of the crushing chamber, a sealing cover is hinged to the top side of the feed hopper, a first rotating shaft and a second rotating shaft are rotatably connected inside the crushing chamber, a crushing blade and a stirring blade are respectively fixedly connected to the outer walls of the first rotating shaft and the second rotating shaft, a conveying pipe is inserted inside the crushing chamber, a second powder negative pressure conveying pump is arranged on the conveying pipe, a distributor is connected to one end of the conveying pipe, the distributor is fixed to the top of the drying chamber, a heating pipe is arranged in the interlayer of the outer wall of the drying chamber, a continuous pipe is connected to the bottom side of the drying chamber, a first powder negative pressure conveying pump and a one-way valve are arranged on the continuous pipe, and the top of the continuous pipe is connected to one side of the drying chamber.

[0006] Preferably, the first rotating shaft is located on top of the second rotating shaft, and one end of the first rotating shaft and the second rotating shaft penetrates the outer shell and is located on the outer wall of the outer shell.

[0007] Preferably, a motor is fixedly connected to the outer wall of the housing, one end of the motor shaft is connected to the shaft of the first rotating shaft, and belts are sleeved on the outer walls of the first and second rotating shafts.

[0008] Preferably, the pulverizing blades are distributed in a ring at equal intervals on the outer wall of the first rotating shaft, and the stirring blades are also arranged in a ring on the outer wall of the second rotating shaft.

[0009] Preferably, the distributor has a circular ring structure and multiple openings at the bottom.

[0010] Preferably, the bottoms of both the drying chamber and the crushing chamber are inclined structures, and a temperature and humidity sensor is installed on one side of the drying chamber.

[0011] Preferably, the bottom of the drying chamber is provided with a discharge pipe, and a solenoid valve is provided on the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device can rapidly circulate and dry a large amount of wollastonite powder, thereby improving the drying uniformity of wollastonite powder and increasing the drying efficiency of wollastonite powder.

[0014] (2) This device sets up a crushing chamber and a drying chamber inside the outer shell. After the material enters from one side of the crushing chamber, it is crushed and then conveyed to the inside of the distributor through the conveying pipe under negative pressure and sprayed into the drying chamber for the first drying. After the first drying is completed, it is vacuum extracted through the continuous tube for the second drying cycle, thereby avoiding the problem of incomplete drying caused by the dense accumulation of material and improving the drying efficiency of the material.

[0015] (3) This device can crush and mix materials by installing stirring blades and crushing blades inside the crushing chamber, thereby avoiding material agglomeration and clogging of the conveying pipe and continuous pipe, and ensuring the smooth conveying of materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a continuous drying device for the production of wollastonite powder according to the present invention.

[0017] Figure 2 This is a cross-sectional view of a continuous drying device for the production of wollastonite powder according to the present invention.

[0018] Figure 3 This is a cross-sectional view of the connection between the first and second rotating shafts of a continuous drying device for the production of wollastonite powder according to this utility model.

[0019] In the diagram: 1. Sealing cap; 2. Feed hopper; 3. Outer shell; 4. Check valve; 5. Continuous pipe; 6. First powder negative pressure conveying pump; 7. Temperature and humidity sensor; 8. Solenoid valve; 9. Discharge pipe; 10. Crushing blade; 11. First rotating shaft; 12. Crushing chamber; 13. Agitator blade; 14. Second rotating shaft; 15. Second powder negative pressure conveying pump; 16. Diverter; 17. Conveying pipe; 18. Heating pipe; 19. Drying chamber; 20. Motor; 21. Belt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution: a continuous drying device for the production of wollastonite powder, including a shell 3, inside which a crushing chamber 12 and a drying chamber 19 are arranged. A motor 20 is fixedly connected to the outer wall of the shell 3. One end of the shaft of the motor 20 is connected to the shaft of a first rotating shaft 11. Belts 21 are sleeved on the outer walls of the first rotating shaft 11 and the second rotating shaft 14. This structure can drive the first rotating shaft 11, belts 21 and the second rotating shaft 14 to rotate through the motor 20. A feed hopper 2 is arranged on one side of the crushing chamber 12. A sealing cover 1 is hinged to the top of the feed hopper 2. The first rotating shaft 11 and the second rotating shaft 14 are rotatably connected inside the crushing chamber 12. The first rotating shaft 11 is located on top of the second rotating shaft 14. One end of the device penetrates the outer casing 3 and is located on the outer wall of the outer casing 3. This structure, through the rotation of the first rotating shaft 11 and the second rotating shaft 14, can drive the crushing blade 10 and the stirring blade 13 to crush and stir the material, thereby avoiding material blockage and agglomeration. Multiple crushing blades 10 are distributed in a circular, equally spaced pattern on the outer wall of the first rotating shaft 11, and multiple stirring blades 13 are also arranged on the outer wall of the second rotating shaft 14. This structure, with its denser distribution of crushing blades 10 and stirring blades 13, can improve the efficiency of material stirring and crushing. The crushing blades 10 and stirring blades 13 are fixedly connected to the outer walls of the first rotating shaft 11 and the second rotating shaft 14, respectively. A conveying pipe 17 is inserted inside the crushing chamber 12, and a second powder negative pressure conveying pump 15 is installed on the conveying pipe 17. One end of the 17 is connected to a distributor 16, which has a circular structure and multiple openings at its bottom. This structure allows the wollastonite powder to be diverted and sprayed out, thus dispersing the material for thorough drying. The distributor 16 is fixed to the top of the drying chamber 19. Both the drying chamber 19 and the crushing chamber 12 have inclined bottoms. A temperature and humidity sensor 7 is installed on one side of the drying chamber 19. This structure uses the temperature and humidity sensor 7 to detect the temperature and humidity of the material. When the material reaches the appropriate temperature and humidity, it can be released. The temperature and humidity sensor 7 can be controlled by a PLC. A discharge pipe 9 is provided at the bottom of the drying chamber 19, and a solenoid valve 8 is installed on the discharge pipe 9. This structure allows... The solenoid valve 8 can automatically control the opening and closing of the discharge pipe 9 to facilitate the release of materials. The outer wall of the drying chamber 19 is equipped with a heating pipe 18. The bottom of the drying chamber 19 is connected to a continuous pipe 5. The continuous pipe 5 is equipped with a first powder negative pressure conveying pump 6 and a one-way valve 4. The top of the continuous pipe 5 is connected to one side of the drying chamber 19. The one-way valve 4 can prevent materials from entering from the top of the continuous pipe 5. The second powder negative pressure conveying pump 15 and the first powder negative pressure conveying pump 6 are both vacuum powder conveying pumps. They achieve the purpose of powder conveying by vacuum suction. They are mainly used to convey powdered materials, granular materials, and powder-granular mixtures. The second powder negative pressure conveying pump 15 and the first powder negative pressure conveying pump 6 are existing technologies, so they will not be described in detail here.

[0022] Working principle: When using this continuous drying equipment for wollastonite powder production, first open the sealing cover 1 and add the material from the feed hopper 2 into the crushing chamber 12. As the material falls, it comes into contact with the rotating crushing blade 10 and stirring blade 13 in sequence to complete crushing and stirring. The material falling to the bottom of the crushing chamber 12 is concentrated to one side to facilitate the suction of the second powder negative pressure conveying pump 15 and the conveying pipe 17. After entering the conveying pipe 17, the material enters the distributor 16 and then falls from the bottom opening of the distributor 16 into the drying chamber 19. During the falling process, the material enters the heating pipe 18 to heat the drying area, thereby realizing the first heating of the material. The material falling to the bottom is sucked in from the top side of the drying chamber 19 by the continuous pipe 5 and the first powder negative pressure conveying pump 6, thus realizing the continuous drying of the material. When the material detects that the humidity is suitable, the solenoid valve 8 opens to discharge the material.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous drying apparatus for the production of wollastonite powder, comprising a casing (3), characterized in that: The shell (3) is internally provided with a crushing bin (12) and a drying bin (19), one side of the crushing bin (12) is provided with a feeding hopper (2), the top side of the feeding hopper (2) is hingedly connected with a sealing cover (1), the crushing bin (12) is rotatably connected with a first rotating shaft (11) and a second rotating shaft (14) inside, the outer wall of the first rotating shaft (11) and the second rotating shaft (14) is fixedly connected with a crushing blade (10) and a stirring blade (13) respectively, a conveying pipe (17) is inserted into the crushing bin (12), the conveying pipe (17) is provided with a second powder negative pressure conveying pump (15), one end of the conveying pipe (17) is connected with a flow divider (16), the flow divider (16) is fixed at the top end of the drying bin (19), the interlayer of the outer wall of the drying bin (19) is provided with a heating pipe (18), the bottom side of the drying bin (19) is connected with a continuous pipe (5), the continuous pipe (5) is provided with a first powder negative pressure conveying pump (6) and a check valve (4), the top end of the continuous pipe (5) is connected with one side of the drying bin (19).

2. A continuous drying apparatus for the production of wollastonite powder according to claim 1, characterized in that: The first rotating shaft (11) is located at the top of the second rotating shaft (14), and one end of the first rotating shaft (11) and the second rotating shaft (14) penetrates through the shell (3) and is located at the outer wall of the shell (3).

3. A continuous drying apparatus for the production of wollastonite powder as claimed in claim 1, characterized in that: The outer wall of the shell (3) is fixedly connected with a motor (20), one end of the shaft of the motor (20) is connected with the shaft of the first rotating shaft (11), and the outer wall of the first rotating shaft (11) and the second rotating shaft (14) is sleeved with a belt (21).

4. A continuous drying apparatus for the production of wollastonite powder as claimed in claim 1, wherein: The crushing blade (10) is circularly and equidistantly distributed on the outer wall of the first rotating shaft (11), and the stirring blade (13) is also provided with a plurality of outer walls on the outer wall of the second rotating shaft (14).

5. A continuous drying apparatus for the production of wollastonite powder as claimed in claim 1, wherein: The flow divider (16) is in a circular ring structure, and a plurality of openings are formed in the bottom of the flow divider (16).

6. A continuous drying apparatus for the production of wollastonite powder as claimed in claim 1, wherein: The bottom of the drying bin (19) and the crushing bin (12) is in an inclined structure, and a temperature and humidity sensor (7) is mounted on one side of the drying bin (19).

7. A continuous drying apparatus for the production of wollastonite powder as claimed in claim 1, wherein: The bottom of the drying bin (19) is provided with a discharge pipe (9), and the discharge pipe (9) is provided with a solenoid valve (8).

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