Energy-saving drying equipment for vertical titanium powder pigment production

Abstract

The utility model provides energy-saving drying equipment for vertical titanium powder pigment production, which relates to the technical field of drying equipment, and comprises a tank body, a feed pipe and a discharge pipe, an air inlet pipe and an air outlet pipe are respectively and symmetrically communicated with two sides of the tank body vertical to the feed pipe and the discharge pipe, a scattering mechanism is arranged in the tank body, and the scattering mechanism is arranged in the tank body. A rotating mechanism is arranged at the bottom of the tank body; the rotating motor, the second bevel gear and the first bevel gear are matched to drive the rotating shaft to rotate at the bottom of the tank body, the rotating shaft can drive the scattering wheel to rotate around the center of the tank body, the bottom of the scattering wheel and the bottom of the tank body rub each other to drive the scattering wheel to rotate, and the scattering wheel can press and scatter vertical titanium powder pigment. According to the powder drying device, the flow guide plate plays a role in blocking powder in air, large-particle powder settles due to gravity, the powder is prevented from flowing along with the air, and the problems that in the prior art, powder is prone to being bonded in equipment and difficult to dry, later maintenance is difficult, and waste is caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to an energy-saving drying equipment for the production of titanium dioxide pigment. Background Technology

[0002] Drying titanium dioxide powder is a key process to ensure its quality. During the drying process, temperature and time must be precisely controlled to avoid high temperature damaging the pigment structure and affecting color and performance. Using professional drying equipment, such as a circulating hot air oven, can ensure that titanium dioxide powder is heated evenly and moisture is removed quickly. After drying, titanium dioxide powder has high dryness and good dispersibility, and can be widely used in coatings, plastics and other fields to improve the weather resistance and decorative effect of products.

[0003] Existing titanium dioxide powder drying equipment can remove moisture from titanium dioxide powder pigments, but after removal, the powder tends to stick inside the equipment, making it difficult to dry. This causes difficulties in later maintenance and also results in waste. Therefore, this utility model proposes an energy-saving drying equipment for titanium dioxide powder pigment production to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an energy-saving drying equipment for the production of titanium dioxide powder pigments, which solves the problem that in the prior art, the powder easily sticks inside the equipment, making it difficult to dry, causing difficulties in subsequent maintenance, and also resulting in waste.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an energy-saving drying equipment for the production of titanium dioxide powder pigment, including a tank, a feed pipe and a discharge pipe, wherein the feed pipe is connected to one side of the tank and the discharge pipe is connected to the other side of the tank, and an air inlet pipe and an air outlet pipe are symmetrically connected to the two sides of the tank that are perpendicular to the positions of the feed pipe and the discharge pipe, respectively, a dispersing mechanism is provided inside the tank, and a rotating mechanism is provided at the bottom of the tank.

[0006] Further improvements are made in that: the dispersing mechanism includes a rotating shaft, dispersing wheels and guide plates; the bottom of the tank is rotatably connected to the rotating shaft; multiple dispersing wheels are rotatably connected to the outside of the rotating shaft; two guide plates are fixedly connected to the upper part of the tank, and the positions of the two guide plates are staggered; and the bottom of the tank is provided with grinding grooves that match the dispersing wheels.

[0007] A further improvement is made in that: the rotating mechanism includes a first bevel gear, a rotary motor, and a second bevel gear. The bottom end of the rotating shaft passes through the bottom of the tank and is fixedly connected to the first bevel gear. The bottom of the tank is equipped with a rotary motor, and the output end of the rotary motor is fixedly connected to the second bevel gear. The outer walls of the first bevel gear and the second bevel gear mesh with each other.

[0008] A further improvement is that a protective shell is fixedly installed at the bottom of the tank, the protective shell is wrapped around the first bevel gear and the second bevel gear, a sealing ring is provided between the bottom of the tank and the bottom of the rotating shaft, and the output end of the rotating motor and the bottom of the rotating shaft are rotatably connected to the protective shell.

[0009] A further improvement is that: the top of the tank is connected to a bend pipe, and a dehumidifier is also installed on the top of the tank, with the input end of the dehumidifier connected to one end of the bend pipe.

[0010] A further improvement is that: one end of the discharge pipe is connected to a cyclone separator, one end of the air inlet pipe is connected to a heat pump drying system, and one end of the air outlet pipe is connected to the heat pump drying system through a return pipe.

[0011] A further improvement is that: the top of the feed pipe is connected to a feed port, a screw is rotatably connected inside the feed pipe, a self-locking motor is fixedly installed at one end of the feed pipe, and the output end of the self-locking motor is fixedly connected to one end of the screw.

[0012] The beneficial effects of this utility model are as follows: the output end of the rotary motor drives the second bevel gear to rotate, the second bevel gear meshes with the first bevel gear, and the first bevel gear is fixed to the bottom end of the rotating shaft as a whole. The rotary motor can drive the rotating shaft to rotate at the bottom of the tank. The dispersing wheel is connected to the rotating shaft, and the rotating shaft can drive the dispersing wheel to rotate around the center of the tank. The friction between the bottom of the dispersing wheel and the bottom of the tank causes the dispersing wheel to rotate. The dispersing wheel can disperse the titanium dioxide powder pigment. The guide plate plays a role in blocking the powder in the air. Large particles of powder settle due to gravity, preventing the powder from flowing with the air. This solves the problem in the prior art that the powder is easy to stick in the equipment, making it difficult to dry, which causes difficulties in later maintenance and also causes waste. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the disintegration mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the feed pipe of this utility model.

[0017] The components are as follows: 1. Tank body; 2. Feed pipe; 3. Discharge pipe; 4. Air inlet pipe; 5. Air outlet pipe; 6. Rotating shaft; 7. Dispersing wheel; 8. Guide plate; 9. First bevel gear; 10. Rotary motor; 11. Second bevel gear; 12. Sealing ring; 13. Protective shell; 14. Bend; 15. Dehumidifier; 16. Feed inlet; 17. Self-locking motor; 18. Screw; 19. Grinding strip. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes an energy-saving drying device for the production of titanium dioxide powder pigments, including a tank body 1, an inlet pipe 2, and an outlet pipe 3. The inlet pipe 2 is connected to one side of the tank body 1, and the outlet pipe 3 is connected to the other side. An air inlet pipe 4 and an air outlet pipe 5 are symmetrically connected to the two sides of the tank body 1 perpendicular to the positions of the inlet pipe 2 and the outlet pipe 3, respectively. A dispersing mechanism is provided inside the tank body 1, and a rotating mechanism is provided at the bottom of the tank body 1. A batch of moist titanium dioxide powder pigments is conveyed into the tank body 1 through the inlet pipe 2, and then dried through the air inlet pipe 5. Pipe 4, the heat pump drying system, delivers hot air into the tank 1 to dry the titanium dioxide powder pigment inside the tank 1. The air then flows back to the heat pump drying system through the air outlet pipe 5 to preheat the air. This secondary heating helps to save energy. The rotating mechanism drives the components in the dispersing mechanism to rotate inside the tank 1, automatically dispersing the titanium dioxide powder pigment at the bottom of the tank 1. The discharge pipe 3 is connected to the cyclone dust collector, which automatically discharges the dried titanium dioxide powder pigment. To ensure the drying effect of the titanium dioxide powder pigment, it is dried in batches.

[0020] The dispersing mechanism includes a rotating shaft 6, dispersing wheels 7, and guide plates 8. The rotating shaft 6 is rotatably connected to the bottom of the tank body 1, and multiple dispersing wheels 7 are rotatably connected to the outside of the rotating shaft 6. Two guide plates 8 are fixedly connected to the upper part of the inside of the tank body 1, and the positions of the two guide plates 8 are staggered. The bottom of the tank body 1 is provided with abrasive strips 19 that match the dispersing wheels 7. The output end of the rotary motor 10 drives the second bevel gear 11 to rotate. The second bevel gear 11 meshes with the first bevel gear 9, and the first bevel gear 9 is fixed to the bottom end of the rotating shaft 6 as a whole. The rotary motor 10 can drive the rotary shaft 6 to rotate at the bottom of the tank 1. The dispersing wheel 7 is connected to the rotary shaft 6. The rotary shaft 6 can drive the dispersing wheel 7 to rotate around the center of the tank 1. The bottom of the dispersing wheel 7 rubs against the abrasive strip 19 at the bottom of the tank 1, causing the dispersing wheel 7 to rotate. The dispersing wheel 7 can disperse the titanium dioxide powder pigment. The guide plate 8 plays a role in blocking the powder in the air. Large powder particles settle due to gravity, preventing the powder from flowing with the air. The sealing ring 12 can fill the gap between the rotary shaft 6 and the bottom of the tank 1 to ensure the sealing of the bottom of the tank 1.

[0021] The rotating mechanism includes a first bevel gear 9, a rotary motor 10, and a second bevel gear 11. The bottom end of the rotating shaft 6 passes through the bottom of the tank body 1 and is fixedly connected to the first bevel gear 9. The bottom of the tank body 1 is provided with a rotary motor 10, and the output end of the rotary motor 10 is fixedly connected to the second bevel gear 11. The outer walls of the first bevel gear 9 and the second bevel gear 11 mesh with each other.

[0022] A protective shell 13 is fixedly installed at the bottom of the tank body 1. The protective shell 13 is wrapped around the first bevel gear 9 and the second bevel gear 11. A sealing ring 12 is provided between the bottom of the tank body 1 and the bottom end of the rotating shaft 6. The output end of the rotating motor 10 and the bottom end of the rotating shaft 6 are rotatably connected to the protective shell 13.

[0023] The top of the tank 1 is connected to a bend 14, and a dehumidifying fan 15 is also installed on the top of the tank 1. The input end of the dehumidifying fan 15 is connected to one end of the bend 14. The wind speed of the dehumidifying fan 15 needs to be matched with the particle size of the powder. The critical suspension velocity, i.e. the minimum speed at which the powder particles are just carried by the airflow, is used as the benchmark. By designing the cross-sectional area of ​​the air duct, such as increasing the diameter of the outlet pipe of the drying chamber, the wind speed is reduced to below the critical value, so that large particles of powder settle due to gravity, and only fine particles or gaseous moisture are allowed to be discharged with the airflow. When the airflow turns, the powder particles hit the wall due to inertia and settle, thus discharging the water vapor generated during the drying process.

[0024] One end of the discharge pipe 3 is connected to a cyclone separator, one end of the inlet pipe 4 is connected to the heat pump drying system, and one end of the outlet pipe 5 is connected to the heat pump drying system through a return pipe. The dust-laden airflow enters the conical cylinder tangentially at a speed of 12-30 m / s. Under the constraint of the wall, a spiral downward airflow is formed. The particles are thrown towards the outer wall due to inertial centrifugal force. After losing kinetic energy, they fall along the wall to the ash discharge port. In the heat pump drying system, the refrigerant absorbs ambient heat in the evaporator and vaporizes from liquid to low-temperature, low-pressure gas. After being compressed by the compressor, the temperature rises sharply to 80℃-120℃, forming a high-grade heat source. The high-temperature gaseous refrigerant condenses and releases heat in the condenser, heating the circulating air to the target drying temperature, such as 50℃-70℃. The hot air is sent into the drying room by the fan to achieve material dehydration. The condensed liquid refrigerant is throttled and depressurized by the expansion valve and re-enters the evaporator to absorb heat, completing the closed loop of heat transfer.

[0025] The top of the feed pipe 2 is connected to the feed port 16. The inside of the feed pipe 2 is rotatably connected to the screw 18. A self-locking motor 17 is fixedly installed at one end of the feed pipe 2. The output end of the self-locking motor 17 is fixedly connected to one end of the screw 18. The wet titanium dioxide powder pigment is fed into the inside of the feed pipe 2 through the feed port 16. The self-locking motor 17 drives the screw 18 to rotate inside the feed pipe 2. The spiral blades on the outside of the screw 18 drive the titanium dioxide powder pigment to move automatically into the inside of the tank 1, so as to automatically feed the inside of the tank 1.

[0026] This energy-saving drying equipment for producing titanium dioxide powder pigments uses a rotary motor 10 to drive a second bevel gear 11 to rotate. The second bevel gear 11 meshes with a first bevel gear 9, and the first bevel gear 9 is fixed to the bottom of the rotating shaft 6. The rotary motor 10 can drive the rotating shaft 6 to rotate at the bottom of the tank 1. A dispersing wheel 7 is connected to the rotating shaft 6, and the rotating shaft 6 can drive the dispersing wheel 7 to rotate around the center of the tank 1. The bottom of the dispersing wheel 7 rubs against the abrasive strip 19 at the bottom of the tank 1, causing the dispersing wheel 7 to rotate. The dispersing wheel 7 can disperse the titanium dioxide powder pigments. The guide plate 8 acts as a barrier to block the powder in the air. Large powder particles settle due to gravity, preventing the powder from flowing with the air. This solves the problem in the existing technology where the powder easily sticks inside the equipment, making it difficult to dry, causing difficulties in later maintenance, and also causing waste.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving drying device for the production of titanium dioxide powder pigment, comprising a tank (1), a feed pipe (2), and a discharge pipe (3), characterized in that: The tank (1) is connected to a feed pipe (2) on one side and a discharge pipe (3) on the other side. The tank (1) is symmetrically connected to an air inlet pipe (4) and an air outlet pipe (5) on the two sides perpendicular to the feed pipe (2) and the discharge pipe (3). The tank (1) is equipped with a dispersing mechanism inside and a rotating mechanism at the bottom. The dispersing mechanism includes a rotating shaft (6), dispersing wheels (7) and guide plates (8). The bottom of the tank (1) is rotatably connected to the rotating shaft (6), and multiple dispersing wheels (7) are rotatably connected to the outside of the rotating shaft (6). Two guide plates (8) are fixedly connected to the upper part of the inside of the tank (1), and the positions of the two guide plates (8) are staggered. The bottom of the tank (1) is provided with a grinding strip (19) that matches the dispersing wheels (7).

2. The energy-saving drying equipment for producing titanium dioxide powder pigment according to claim 1, characterized in that: The rotating mechanism includes a first bevel gear (9), a rotary motor (10), and a second bevel gear (11). The bottom end of the rotating shaft (6) passes through the bottom of the tank (1) and is fixedly connected to the first bevel gear (9). The bottom of the tank (1) is provided with a rotary motor (10). The output end of the rotary motor (10) is fixedly connected to the second bevel gear (11). The outer walls of the first bevel gear (9) and the second bevel gear (11) mesh with each other.

3. The energy-saving drying equipment for producing titanium dioxide powder pigment according to claim 2, characterized in that: A protective shell (13) is fixedly installed at the bottom of the tank (1). The protective shell (13) is wrapped around the first bevel gear (9) and the second bevel gear (11). A sealing ring (12) is provided between the bottom of the tank (1) and the bottom of the rotating shaft (6). The output end of the rotating motor (10) and the bottom of the rotating shaft (6) are rotatably connected to the protective shell (13).

4. The energy-saving drying equipment for producing titanium dioxide powder pigment according to claim 1, characterized in that: The top of the tank (1) is connected to a bend (14), and a dehumidifier (15) is also installed on the top of the tank (1). The input end of the dehumidifier (15) is connected to one end of the bend (14).

5. The energy-saving drying equipment for producing titanium dioxide powder pigment according to claim 1, characterized in that: One end of the discharge pipe (3) is connected to a cyclone separator, one end of the air inlet pipe (4) is connected to a heat pump drying system, and one end of the air outlet pipe (5) is connected to the heat pump drying system through a return pipe.

6. The energy-saving drying equipment for producing titanium dioxide powder pigment according to claim 1, characterized in that: The top of the feed pipe (2) is connected to the feed port (16), and the inside of the feed pipe (2) is rotatably connected to the screw (18). A self-locking motor (17) is fixedly installed at one end of the feed pipe (2), and the output end of the self-locking motor (17) is fixedly connected to one end of the screw (18).

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