A versatile wax powder spraying equipment

Abstract

This invention discloses a versatile wax powder spraying device, specifically relating to the field of wax powder production. It includes a centrifugal tower with a powder spraying mechanism connected to its top. Air supply pipes are distributed within the tower and connected to the air supply mechanism. An air outlet is located at the top of the tower, and an exhaust port is located at the bottom, connected to a separation mechanism. A discharge port is located at the bottom of the tower. The air supply mechanism connects to a heater and a fan. The fan and powder spraying mechanism are connected via a pneumatic transmission mechanism. This transmission mechanism allows for different types of wax powder to be produced, with varying pressures in the powder spraying mechanism. The fan speed is adjusted accordingly to change the air intake. This method is suitable for producing different types of wax powder while ensuring quality during the production of various wax powders.

Description

Technical Field

[0001] This invention relates to the field of modified wax, specifically to a highly adaptable modified wax powder spraying device. Background Technology

[0002] Modified wax is a mixture of different waxes that combines the advantages of each. It includes casting wax used for dewaxing and polymer wax as a coating. Polymer wax includes polyethylene wax, which can be used as a raw material for chlorinated polyethylene, a plastic modifier, a textile coating agent, and an additive to improve the viscosity of crude oil and fuel oil. The method of producing its micronized powder is to input the molten polyethylene wax under high pressure using a diaphragm pump, and spray it into a mist-like droplet in a drying tower through a two-fluid or multi-fluid nozzle under pressure. Then, it falls in parallel with hot air, and the powder particles are collected from the discharge port at the bottom of the tower.

[0003] The patent application document with patent number CN103275335B discloses a method for preparing polyethylene wax micro powder, including the following steps: (1) melting and conveying raw materials: a heating device is used to prepare polyethylene wax liquid, and a heat-insulating gear pump is used to transport the polyethylene wax liquid through a pipeline to the atomizer located inside the spray granulation tower. The pipeline and other parts of the atomizer except for the spray hole need to be kept insulated as a whole; (2) compressed air and atomization: compressed air provided by an air compressor is transported to the atomizer through another pipeline and matched with the pressurized polyethylene wax liquid to fully atomize the polyethylene wax liquid. The atomized droplets are cooled and solidified into micro powder in the granulation tower; (3) product collection: a collection device collects the cooled and solidified micro powder to obtain the product.

[0004] However, existing powder spraying equipment has limitations in the quality of finished polyethylene powder because the ratio of powder spraying volume to air intake volume is not easily adjustable. Summary of the Invention

[0005] The purpose of this invention is to provide a versatile wax powder spraying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A versatile wax powder spraying device includes a centrifugal tower. A powder spraying mechanism is connected to the top of the centrifugal tower. Air supply pipes are distributed inside the centrifugal tower and connected to the air supply mechanism. An air outlet is located at the top of the centrifugal tower, and an exhaust port is located at the bottom of the centrifugal tower, connected to a separation mechanism. A discharge port is located at the bottom of the centrifugal tower. The air supply mechanism is connected to a heater and a fan. The fan and the powder spraying mechanism are connected via a pneumatic transmission mechanism. This transmission mechanism allows for different types of wax powder to be produced. When the pressure of the powder spraying mechanism varies, the fan speed is adjusted accordingly to change the air intake. This device is suitable for producing different types of wax powder while ensuring the quality of the wax powder produced.

[0008] Preferably, the powder spraying mechanism includes a pressurizing pipe connected to the feeding pipe, a pressurizing screw connected inside the pressurizing pipe, the pressurizing screw being coaxially and fixedly connected to the output shaft of the pressurizing motor, the output shaft of the pressurizing motor being connected to a drive fan wheel, the drive fan wheel rotating inside a drive fan cylinder, the drive fan cylinder and a driven fan cylinder being connected through a pipe, the driven fan wheel being rotatably connected inside the driven fan cylinder, the driven fan wheel being connected to the supply fan through an adjustment mechanism, the transmission mechanism adopting a pneumatic transmission method, using the pressurizing motor connected in the powder spraying mechanism to drive the drive fan wheel to generate power, the airflow driving the driven fan wheel to rotate, thereby causing the supply fan connected to the driven fan wheel to rotate to achieve air supply.

[0009] Preferably, the adjustment mechanism includes a turntable coaxially fixedly connected to the driven fan wheel drive, a drive fan blade fixedly connected to the side of the turntable, a driven disk provided on the side of the turntable connected to the drive fan blade, and a driven fan blade slidably connected to the side of the driven disk near the turntable. The adjustment mechanism uses the turntable connected to the drive fan blade and the driven disk connected to the driven fan blade to drive the driven disk to rotate, thereby causing the fan connected to the driven disk to rotate and supply air at a certain transmission ratio. The driven fan blade is slidably connected to the driven disk and can be adjusted to change the transmission ratio.

[0010] Preferably, the turntable and the driven disc are located inside the enclosed cylinder. A tapered rod is slidably connected to the middle of the driven disc. The tapered rod is slidably connected to the driven fan blade and to the telescopic rod. The driven fan blade is driven by the tapered rod to change the distance between the driven fan blade and the driving fan blade, thereby changing the transmission ratio.

[0011] Preferably, there are multiple air supply pipes arranged in a linear array from top to bottom inside the centrifuge tower. Each air supply pipe is connected to an annular jet pipe. The annular jet pipe has a centering jet hole on its side, and the axis of the centering jet hole intersects with the axis of the annular jet pipe. The multiple air supply pipes are connected to the annular jet pipe with the centering jet hole on its side, which impacts the falling atomized modulated wax and extends the path of the modulated wax in the centrifuge tower, so that the atomized modulated wax is fully cooled.

[0012] Preferably, the annular jet pipe is rotatably connected to the air supply pipe, and a flow-blocking fan wheel is connected to the end of the air supply pipe. The flow-blocking fan wheel is coaxially and fixedly connected to the friction wheel. The friction wheel abuts against the outer side of the annular jet pipe. The rotatable connection between the annular jet pipe and the air supply pipe causes the centering jet hole provided on it to rotate. During the rotation, the falling atomized wax is impacted indiscriminately, and the atomized wax is impacted by the airflow during its fall, causing it to move towards the center of the centrifuge tower, reducing the probability of the atomized wax colliding with the inner wall of the centrifuge tower, thereby reducing the probability of adhesion.

[0013] Preferably, the heater includes a heat exchange tube connected to the middle of the air supply pipe, an electric heating plate connected to the outside of the heat exchange tube, and a heat insulation cylinder connected to the outside of the electric heating plate. The heater is connected to increase the air temperature and avoid the atomized wax solidification rate being too fast due to sudden cooling, which would affect the quality.

[0014] Preferably, the separation mechanism includes a separation cylinder, the top of which is connected to an exhaust port, a centrifuge cylinder is rotatably connected inside the separation cylinder, a waste gas discharge pipe is connected to the bottom of the centrifuge cylinder, and a recovery discharge pipe is connected to the bottom of the separation cylinder. The separation mechanism uses a centrifuge cylinder rotatably connected inside the separation cylinder. Waste gas in the centrifuge tower enters the centrifuge cylinder for centrifugation, and the fine particles in the gas are separated from the waste gas by centrifugation, thereby treating the waste gas and recovering the separated particles.

[0015] Preferably, a recycling wheel is rotatably connected inside the recycling pipe, and a recycling groove is provided on the side of the recycling wheel. When the recycling wheel rotates, a certain amount of particles accumulated in the recycling groove are discharged from the recycling pipe.

[0016] Preferably, the top of the centrifuge cylinder is connected to a cover plate, and an exhaust gap is left between the cover plate and the centrifuge cylinder. Centrifuge fan blades are fixedly connected to the outside of the centrifuge cylinder, and the top of the centrifuge cylinder is connected to a cover plate to prevent airflow containing particles from being discharged directly through the exhaust pipe without centrifugation.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The powder spraying mechanism and the air supply mechanism are connected by a transmission. When the pressurized motor in the powder spraying mechanism is running, the air supply mechanism and the pressurized motor run at a certain speed ratio, so that the ratio of powder spraying volume to air supply volume remains stable. This allows for the selection of different pressure and air supply volumes when producing different types of modulated waxes. The regulating mechanism in the air supply mechanism is used to adjust the transmission ratio between the air supply fan and the driven fan wheel to change the transmission ratio between the powder spraying mechanism and the air supply fan.

[0019] 2. By adopting multiple air inlets and setting an air outlet at the top of the centrifugal tower, the air volume can be increased in a timely manner. The air inlets are equipped with heaters to increase the air temperature in order to obtain polyethylene wax with higher viscosity. The centrifugal tower is connected to a separation mechanism to separate the waste gas, thereby enabling the recovery of particulate matter in the waste gas.

[0020] 3. Multiple air supply pipes are connected to annular jet pipes with centrally aligned jet holes on the side. This impacts the falling atomized wax and extends the path of the wax in the centrifuge tower, allowing the atomized wax to cool down fully. Furthermore, the atomized wax is impacted by the airflow as it falls, causing it to move towards the center of the centrifuge tower, reducing the probability of the atomized wax colliding with the inner wall of the centrifuge tower, reducing the probability of adhesion, and reducing cleaning. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the powder spraying mechanism of the present invention;

[0023] Figure 3 This is a longitudinal sectional view of the pressurization tube of the present invention;

[0024] Figure 4 This is a schematic diagram of the air supply mechanism of the present invention;

[0025] Figure 5 This is a longitudinal sectional view of the pneumatic transmission mechanism of the present invention;

[0026] Figure 6 This is a cross-sectional view of the adjustment mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the choke fan structure of the present invention;

[0028] Figure 8 This is a cross-sectional view of the pipe rack of the present invention;

[0029] Figure 9 This is a schematic diagram of the separation mechanism of the present invention;

[0030] Figure 10 This is a longitudinal sectional view of the separation cylinder of the present invention;

[0031] In the diagram: 1. Support platform; 2. Centrifuge tower; 3. Powder spraying mechanism; 31. Pressurizing pipe; 311. Feed inlet; 32. Pressurizing motor; 33. Pressurizing screw; 4. Pneumatic transmission mechanism; 41. Active fan cylinder; 411. Active fan wheel; 42. Pipeline; 43. Driven fan wheel; 44. Enclosed cylinder; 441. Turntable; 4411. Driven fan blade; 442. Driven disc; 4421. Driven fan plate; 4422. Conical rod; 4423. Sliding... 5. Rod; 6. Air supply mechanism; 7. Suction fan cylinder; 8. Air supply fan; 9. Air supply pipe; 10. Jet nozzle; 11. Pipe rack; 12. Friction wheel; 13. Baffle fan wheel; 14. Separation mechanism; 15. Separation cylinder; 16. Discharge port; 17. Recovery wheel; 18. Recovery tank; 19. Centrifuge cylinder; 10. Centrifuge fan blade; 11. Top cover; 12. Heater; 13. Heat insulation cylinder; 14. Electric heating plate; 15. Heat exchange tube. Detailed Implementation

[0032] Example 1

[0033] like Figure 1-10 As shown, a versatile wax powder spraying device includes a centrifugal tower 2, with a powder spraying mechanism 3 connected to the top of the centrifugal tower 2. Air supply pipes are distributed inside the centrifugal tower 2 and connected to an air supply mechanism 5. An air outlet is located at the top of the centrifugal tower 2, and an exhaust port is located at the bottom of the centrifugal tower 2, connected to a separation mechanism 6. A discharge port 611 is located at the bottom of the centrifugal tower 2. The air supply mechanism 5 is connected to a heater 7 and a fan. The fan and the powder spraying mechanism 3 are connected via a pneumatic transmission mechanism 4. The powder spraying mechanism 3 includes a pressure pipe 31 connected to the supply pipe, with a pressure screw 33 connected inside the pressure pipe 31. The pressure screw 33 is coaxially and fixedly connected to the output shaft of a pressure motor 32. The output shaft of the pressure motor 32 is connected to a drive fan wheel 411. The drive fan wheel 411 is located at the main... The driven fan cylinder 41 rotates inside the driven fan cylinder 41. The driven fan cylinder 41 and the driven fan cylinder are connected through a pipe 42. The driven fan wheel 43 is rotatably connected inside the driven fan cylinder. The driven fan wheel 43 is connected to the power supply fan through an adjustment mechanism. The adjustment mechanism includes a turntable 441 that is coaxially and fixedly connected to the driven fan wheel 43. The drive fan blade 4411 is fixedly connected to the side of the turntable 441. A driven disk 442 is provided on the side of the turntable 441 connected to the drive fan blade 4411. The driven fan blade is slidably connected to the side of the driven disk 442 near the turntable 441. The turntable 441 and the driven disk 442 are located inside the closed cylinder 44. A tapered rod 4422 is slidably connected to the middle of the driven disk 442. The tapered rod 4422 is slidably connected to the driven fan blade and to the telescopic rod.

[0034] In the wax powdering process, molten wax enters the pressurizing pipe 31 through the feed inlet 311. The pressurizing motor 32 drives the pressurizing screw 33 to rotate, causing the fluid wax inside the pressurizing pipe 31 to be atomized into wax particles through the powder spraying nozzle at the top of the centrifuge tower 2 under pressure. The pressurizing motor 32 drives the air supply mechanism through the pneumatic transmission mechanism 4. The air supply pipe 52 located inside the centrifuge tower 2 inputs air into the centrifuge tower 2. The air is heated by the heater 7 and then enters the centrifuge tower 2 to cool the atomized wax and solidify it. In the pneumatic transmission mechanism 4, the driving fan wheel 411 is coaxially and fixedly connected to the output shaft of the pressurizing motor 32. The driving fan wheel 411 rotates inside the driving fan cylinder 41, driving the airflow into the pipe 42. Through the pipe 42, the airflow enters the driven fan cylinder connected to the pipe 42 and drives the driven fan cylinder to rotate. The driven fan cylinder is coaxially and fixedly connected to the turntable 441, thus enabling the driving fan fixedly connected to the driving turntable 441 to rotate. The rotation of blade 4411 drives the fan blade 4411 to rotate, generating a rotating airflow inside the closed cylinder 44. The rotating airflow generates a driving force on the driven fan plate 4421 connected to the side of the driven disk 442, causing the air supply fan 511, which is radially fixed to the driven disk 442, to rotate. The air supply fan 511 is located inside the suction fan cylinder 51 and can input airflow into the air supply pipe 52. When producing modulated wax particles under different pressures, the speed of the pressurizing motor 32 is different, resulting in different power for the pneumatic transmission mechanism 4. Therefore, the air supply can be changed to make the powder spraying amount and the air supply amount a certain ratio. When it is necessary to change this ratio, the control slide rod 4423 slides relative to the shaft connected to the air supply fan 511. The slide rod 4423 is axially inserted and radially fixed to the shaft. The tapered rod 4422 connected to the slide rod 4423 slides relative to the driven fan blade and drives the driven fan blade to slide relative to the driven plate, changing the distance between the driven fan blade and the driving fan blade, so that it can be subjected to different wind force impacts to change the transmission ratio.

[0035] Example 2

[0036] like Figure 1-10As shown, a versatile wax powder spraying device includes a centrifugal tower 2. The centrifugal tower 2 has a powder spraying mechanism 3 connected to its top, air supply pipes distributed within it, and these pipes connected to an air supply mechanism 5. An air outlet is located at the top of the centrifugal tower 2, and an exhaust port is located at its bottom, connected to a separation mechanism 6. A discharge port 611 is located at the bottom of the centrifugal tower 2. The air supply mechanism 5 is connected to a heater 7 and a fan. The fan and the powder spraying mechanism 3 are connected via a pneumatic transmission mechanism 4. Multiple air supply pipes are present within the centrifugal tower 2, extending from the top... The lower linear array has an annular jet pipe connected to each air supply pipe. The annular jet pipe has a centering jet hole 521 on its side, and the axis of the centering jet hole 521 intersects the axis of the annular jet pipe. The annular jet pipe is rotatably connected to the air supply pipe. The end of the air supply pipe is connected to a flow-blocking fan wheel 541. The flow-blocking fan wheel 541 is coaxially and fixedly connected to a friction wheel 54. The friction wheel 54 abuts against the outside of the annular jet pipe. The heater 7 includes a heat exchange pipe 73 connected to the middle of the air supply pipe. The outside of the heat exchange pipe 73 is connected to an electric heating plate 72. The outside of the electric heating plate 72 is connected to a heat insulation cylinder 71.

[0037] In the air supply process, the airflow from the air supply fan 511 passes through the baffle fan, causing the baffle fan to rotate. The baffle fan is coaxially fixedly connected to the friction wheel 54. The rotation of the friction wheel 54 drives the annular jet pipe it is in contact with to rotate on the pipe rack 53. At the same time, the airflow enters between the pipe rack 53 and the annular jet pipe and is ejected from the jet hole 521. The airflow ejected from the jet hole 521 acts on the atomized modulated wax along a downward inclined path aligned with the axis of the annular jet pipe, cooling it and generating a lateral force on the atomized modulated wax, causing the atomized modulated wax to move laterally. By setting up a multi-stage annular jet pipe, the atomized modulated wax falling from the previous stage provides a reverse force, preventing the modulated wax from colliding with the centrifuge tower 2 during its fall, which would cause the granular modulated wax to be impacted and deformed in the uncured state, affecting the particle size appearance.

[0038] Example 3

[0039] like Figure 1-10 As shown, a versatile wax powder spraying device includes a centrifugal tower 2, a powder spraying mechanism 3 connected to the top of the centrifugal tower 2, air supply pipes distributed inside the centrifugal tower 2, air supply pipes connected to an air supply mechanism 5, an air outlet at the top of the centrifugal tower 2, an exhaust port at the bottom of the centrifugal tower 2, a separation mechanism 6 connected to the exhaust port, a discharge port 611 at the bottom of the centrifugal tower 2, an air supply mechanism 5 connected to a heater 7 and a fan, the fan and the powder spraying mechanism 3 being connected by a pneumatic transmission mechanism 4, the separation mechanism 6 including a separation cylinder 61, the top of the separation cylinder 61 communicating with the exhaust port, a centrifugal cylinder 62 rotatably connected inside the separation cylinder 61, a waste gas discharge pipe connected to the bottom of the centrifugal cylinder 62, a recovery discharge pipe connected to the bottom of the separation cylinder 61, a recovery wheel 6111 rotatably connected inside the recovery discharge pipe, a recovery trough 6112 provided on the side of the recovery wheel 6111, a cover plate connected to the top of the centrifugal cylinder 62, an exhaust gap left between the cover plate and the centrifugal cylinder 62, and a centrifugal fan blade 621 fixedly connected to the outside of the centrifugal cylinder 62.

[0040] After being treated by jetting, the cured wax falls to the bottom of the centrifuge tower 2 and is discharged from the discharge port 611 at the bottom of the centrifuge tower 2. A separation cylinder 61 is connected to the side of the centrifuge tower 2. The waste gas in the centrifuge tower 2 enters the separation cylinder 61. The centrifuge cylinder 62, which is rotatably connected in the separation cylinder 61, rotates under the drive of the motor, causing the centrifuge fan plate fixedly connected to the side of the centrifuge cylinder 62 to rotate. Centrifugal force is generated in the separation cylinder 61, causing the fine particles in the waste gas to separate under the action of centrifugal force. The gas is discharged from the exhaust port connected to the top cover 622. The separated solids fall to the bottom of the separation cylinder 61. By rotating the recovery wheel 6111 at the bottom of the separation cylinder 61, the solids falling into the recovery tank 6112 are rotated to the bottom of the recovery wheel 6111. When the solids fall, the recovery wheel 6111 can block the gas, preventing the waste gas from being discharged directly without centrifugation, which would affect the recovery rate.

Claims

1. A modulated wax dusting device with high applicability, comprising a centrifugal tower (2), characterized in that, The centrifuge tower (2) is connected to the powder spraying mechanism (3) at the top. The centrifuge tower (2) is distributed with air supply pipes, which are connected to the air supply mechanism (5). The centrifuge tower (2) is provided with an air outlet at the top and an exhaust port at the bottom. The exhaust port is connected to the separation mechanism (6). The centrifuge tower (2) is provided with a discharge port (611) at the bottom. The air supply mechanism (5) is connected to the heater (7) and the fan. The fan and the powder spraying mechanism (3) are connected by a pneumatic transmission mechanism (4). The powder spraying mechanism (3) includes a pressure pipe (31) connected to the feeding pipe. A pressure screw (33) is connected inside the pressure pipe (31). The pressure screw (33) is coaxially fixedly connected to the output shaft of the pressure motor (32). The output shaft of the pressure motor (32) is connected to the active fan wheel (411). The active fan wheel (411) rotates inside the active fan cylinder (41). The active fan cylinder (41) and the driven fan cylinder are connected through a pipe (42). The driven fan wheel (43) is rotatably connected inside the driven fan cylinder. The driven fan wheel (43) is connected to the supply fan through an adjustment mechanism. The adjustment mechanism includes a turntable (441) that is coaxially and fixedly connected to the driven fan wheel (43). A drive fan blade (4411) is fixedly connected to the side of the turntable (441). A driven disk (442) is provided on the side of the turntable (441) connected to the drive fan blade (4411). The driven fan blade is slidably connected to the side of the driven disk (442) near the turntable (441). The turntable (441) and driven plate (442) are located inside the closed cylinder (44). The driven plate (442) is slidably connected to the middle of the tapered rod (4422). The tapered rod (4422) is slidably connected to the driven fan blade and to the telescopic rod.

2. The versatile wax powder spraying equipment according to claim 1, characterized in that, There are multiple air supply pipes, which are arranged in a linear array from top to bottom inside the centrifuge tower (2). Each air supply pipe is connected to an annular jet pipe. A centering jet hole (521) is provided on the side of the annular jet pipe, and the axis of the centering jet hole (521) intersects with the axis of the annular jet pipe.

3. The versatile wax powder spraying equipment according to claim 2, characterized in that, The annular jet pipe is rotatably connected to the air supply pipe. The end of the air supply pipe is connected to a flow-blocking fan wheel (541). The flow-blocking fan wheel (541) is coaxially fixedly connected to the friction wheel (54). The friction wheel (54) abuts against the outer side of the annular jet pipe.

4. The versatile wax powder spraying equipment according to claim 3, characterized in that, The heater (7) includes a heat exchange tube (73) connected to the middle of the air supply pipe, an electric heating plate (72) connected to the outside of the heat exchange tube (73), and a heat insulation cylinder (71) connected to the outside of the electric heating plate (72).

5. The versatile wax powder spraying equipment according to claim 1, characterized in that, The separation mechanism (6) includes a separation cylinder (61), the top of which is connected to the exhaust port, a centrifuge cylinder (62) is rotatably connected inside the separation cylinder (61), the bottom of the centrifuge cylinder (62) is connected to the exhaust pipe, and the bottom of the separation cylinder (61) is connected to the recovery pipe.

6. The versatile wax powder spraying equipment according to claim 5, characterized in that, The recycling pipe is rotatably connected to a recycling wheel (6111), and a recycling groove (6112) is provided on the side of the recycling wheel (6111).

7. The versatile wax powder spraying equipment according to claim 5, characterized in that, The top of the centrifuge tube (62) is connected to a cover plate, and an exhaust gap is left between the cover plate and the centrifuge tube (62). Centrifuge fan blades (621) are fixedly connected to the outside of the centrifuge tube (62).

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