A jet mill for adhesive production line

Abstract

The invention discloses an air flow pulverizer for an adhesive production line, comprising a feeding and discharging device, wherein the feeding and discharging device comprises a motor, a collision rod, a feeding pipe, a third guide plate and a second rotating ring, and can control the entry of raw materials and can also adjust the particle size after preliminary pulverization; the adjusting device comprises a first guide plate, a second guide plate and a first rotating ring, and can adjust the pulverization efficiency during preliminary pulverization; the discharging device comprises a second outer shell, a fourth guide plate, a third outer shell, a sixth guide plate and a second nozzle, and can centrally pulverize the raw materials and facilitate the discharge of the pulverized raw materials.

Description

Technical Field

[0001] The invention relates to the field of air flow pulverizers, in particular to an air flow pulverizer for an adhesive production line. Background Art

[0002] In the production process of adhesives, part of the raw materials need to be crushed to facilitate subsequent mixing and processing. Due to the hot-melt property of the adhesive raw materials, an air flow crusher is generally used for crushing. However, during the crushing process, the existing air flow crusher will generate high-speed airflow, which easily discharges the raw material particles that are not completely crushed together. Therefore, the existing gas crusher needs to be used in conjunction with a cyclone separation device during crushing to form a gas crushing system, so that separation can be carried out during the crushing process, thereby performing cyclic crushing. However, this also reduces the crushing efficiency of the gas crusher.

[0003] For example, a gas flow pulverizing unit proposed in CN201610890561.2 includes a gas flow pulverizing machine, a feeder, a vortex air pump, an operating table, and a material pipeline. A separator, a collector, a pressure gauge pressure regulating valve, and an air storage bag are sequentially arranged on the material pipeline and are connected through the material pipeline. The gas flow pulverizing machine is connected to the material pipeline feed port through a connecting device, and the collector is connected to the vortex air pump through a conduit; the operating table includes a first platform, a second platform, and a supporting column, the gas flow pulverizing machine, the feeder, the separator, the collector, and the air storage bag are respectively fixedly connected to the first platform, and the vortex air pump is arranged on the upper side of the second platform; the separator and the bottom side of the collector are respectively connected to a material receiving barrel through a connecting device; a pressure gauge, a first pressure regulating valve, a second pressure regulating valve, and a third pressure regulating valve are arranged on the upper side of the air storage bag, the first pressure regulating valve and the second pressure regulating valve are connected to the gas flow pulverizing machine, and the third pressure regulating valve is connected to the feeder, but the above-mentioned problems are not solved.

[0004] The present invention can adjust the particle size after preliminary crushing through the provided feeding and discharging device, realize autonomous particle size separation, thereby eliminating the need to connect an external cyclone separation device, reducing costs, and adjusting the crushing efficiency during preliminary crushing through the provided adjusting device. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to propose an air flow pulverizer for an adhesive production line, which can adjust the particle size after preliminary crushing through the provided feeding and discharging devices, realize autonomous particle size separation, thereby eliminating the need to connect an external cyclone separation device, reducing costs, and adjusting the crushing efficiency during preliminary crushing through the provided adjustment device.

[0006] The present invention provides an air flow pulverizer for an adhesive production line, which comprises a chassis, a mounting block, a first shell and a first nozzle. The first shell is arranged above the chassis, the mounting block is arranged on the chassis, and the first nozzle is installed on the mounting block in a circumferential manner. The air flow pulverizer for the adhesive production line also comprises: an inlet and outlet device arranged above the mounting block, which can control the entry of raw materials and adjust the particle size after preliminary crushing; an adjusting device arranged on the chassis, which can adjust the crushing efficiency during preliminary crushing; and a discharge device arranged below the chassis, which can centrally crush the raw materials and facilitate the discharge of the crushed raw materials.

[0007] Furthermore, the first nozzle is arranged to be tilted downward, and a nozzle hole which first contracts and then expands is provided at the front end of the first nozzle, so as to increase the speed of ejecting gas.

[0008] Furthermore, the upper end of the mounting block is in a pyramidal shape, which can guide the raw material to slide in front of the first nozzle, and the first shell is in a "peach-shaped" shape with a hole on the upper side.

[0009] Furthermore, the feeding and discharging device includes a motor, a collision rod, a feed pipe, a third guide plate and a second swivel. The motor is arranged under the chassis, the feed pipe is fixed in the opening above the first shell through a second shell arranged on the outside of the first shell, the third guide plate is slidably installed on the lower end of the feed pipe through a slide plate provided on the inner side, the second swivel is installed on the upper end of the feed pipe through a thread provided on the inner side, the lower end of the second swivel is rotatably connected to the slide plate, and the inner side of the lower end of the second swivel is provided with a slide groove corresponding to the slide plate.

[0010] Furthermore, the upper end of the third guide plate is a downwardly inclined arc surface that matches the first shell, the upper end of the slide plate is an outward hook, and the feed pipe is provided with a slide groove that matches the slide plate.

[0011] Furthermore, a collision rod is provided on the motor output shaft, the collision rod is located below the feed pipe, a collision block is provided at the end of the collision rod, and a downward inclined surface is provided at the front end of the collision block. The motor output shaft is also provided with a worm located in the feed pipe and in contact with the inner wall of the feed pipe.

[0012] Furthermore, the adjusting device includes a first guide plate, a second guide plate and a first swivel. The first guide plates and the second guide plates are arranged in pairs on the chassis in a ring-shaped uniformly distributed manner. Each group of the first guide plates and the second guide plates is located in front of the corresponding first nozzle. A second gear is provided under the first guide plate. The first swivel is rotatably installed under the chassis. A corresponding limiting groove is provided on the first swivel. A gear ring is provided on the inner side of the first swivel to mesh with the second gear. A handle is provided on the outer side of the first swivel.

[0013] Furthermore, the first guide plate and the second guide plate are wing-like in shape with a thick front end and a thin rear end, and the first guide plate and the second guide plate are meshed and dynamically connected via a first gear disposed below.

[0014] Furthermore, the discharge device includes a second shell, a fourth guide plate, a third shell, a sixth guide plate and a second nozzle. The second shell is a spherical shell that fits the first shell. The fourth guide plate is arranged between the first shell and the second shell. The fourth guide plate is annular and radial. The third shell is arranged below the second shell through a connecting pipe. The third shell is connected to the second shell through a connecting pipe. A sixth annular and radial guide plate is provided in the middle of the inner side of the third shell. An inclined second nozzle is provided on the edge of the third shell. A discharge pipe is provided below the third shell for connecting to an external collecting device.

[0015] Furthermore, a fifth guide plate is provided on the inner side of the second shell and the outer side of the first shell, and the fifth guide plates on both sides form an angle with a gap, and the gap becomes smaller as it goes downwards.

[0016] Beneficial effects: 1. The third guide plate is slidably installed on the lower end of the feed pipe through the slide plate provided on the inner side, the second swivel is installed on the upper end of the feed pipe through the thread provided on the inner side, the lower end of the second swivel is rotatably connected to the slide plate, and the inner side of the lower end of the second swivel is provided with a slide groove corresponding to the slide plate, and the second swivel can be rotated to drive the slide plate and the third guide plate to slide up and down, so as to adjust the gap size between the third guide plate and the first shell, thereby changing the size of the raw material particles during discharge, realizing the size separation of the raw material particles, thereby eliminating the need to connect an external cyclone separation device and reducing costs.

[0017] The first guide plates and the second guide plates are rotatably mounted on the chassis in groups of two in a ring-shaped uniform distribution. Each group of the first guide plates and the second guide plates is located in front of the corresponding first nozzle. The first guide plates and the second guide plates are meshed and dynamically connected through the first gear provided below. A second gear is provided below the first guide plate. The first rotating ring is rotatably mounted below the chassis. A gear ring is provided on the inner side of the first rotating ring to mesh with the second gear. The angle between the first guide plate and the second guide plate can be adjusted during crushing, thereby adjusting the efficiency of raw material crushing.

[0018] The second shell is in the shape of a spherical shell that fits the first shell, the fourth guide plate is arranged between the first shell and the second shell, the third shell is arranged below the second shell through a connecting pipe, the third shell is connected to the second shell through the connecting pipe, a sixth annular radial guide plate is arranged in the middle of the inner side of the third shell, and an inclined second nozzle is arranged on the edge of the third shell, the raw material particles can be concentrated in the middle of the third shell through the second nozzle and the sixth guide plate, and rotated and rubbed to achieve centralized crushing, thereby achieving a crushing effect and facilitating the centralized discharge of the crushed raw material particles.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a cross-sectional view of the present invention.

[0022] Figure 3 It is an exploded view of the regulating device of the present invention.

[0023] Figure 4 It is a schematic diagram of the overall structure of the regulating device of the present invention.

[0024] Figure 5 It is a cross-sectional view of the first nozzle of the present invention.

[0025] Figure 6 It is a cross-sectional view of the feeding and discharging device of the present invention.

[0026] Figure 7 It is a schematic diagram of the overall structure of the third guide plate of the present invention.

[0027] Figure 8 is a cross section of the discharge device of the present invention Figure 1 .

[0028] Fig. 9 is a cross section of the discharge device of the present invention Figure 2 .

[0029] Figure numerals: chassis 1; mounting block 2; first housing 3; first nozzle 4; first guide plate 5; second guide plate 6; first gear 7; second gear 8; first swivel 9; ring gear 10; motor 11; collision rod 12; collision block 13; feed pipe 14; third guide plate 15; second swivel 16; worm 17; second housing 18; fourth guide plate 19; fifth guide plate 20; third housing 21; connecting pipe 22; discharge pipe 23; sixth guide plate 24; second nozzle 25; slide plate 26. Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0031] Hereinafter, a jet mill for an adhesive production line according to an embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 - Fig. 9 As shown, the air flow pulverizer for the adhesive production line includes a chassis 1, a mounting block 2, a first shell 3 and a first nozzle 4. The first shell 3 is provided above the chassis 1, the mounting block 2 is provided on the chassis 1, the first nozzle 4 is installed on the mounting block 2 in a circumferential manner, the first nozzle 4 is arranged to be inclined downward, and a spray hole that first contracts and then expands is opened at the front end of the first nozzle 4, which can increase the speed of the ejected gas. The upper end of the mounting block 2 is a pyramid shape, which can guide the raw materials to slide in front of the first nozzle 4. The first shell 3 is a "peach shape" with a hole opened on the top, and the first shell 3 is convenient for guiding the raw materials from bottom to top. The air flow pulverizer for the adhesive production line also includes: a feeding and discharging device provided above the mounting block 2, which can control the entry of the raw materials and can also adjust the particle size after preliminary crushing; an adjusting device provided on the chassis 1, which can adjust the crushing efficiency during preliminary crushing; a discharging device provided below the chassis 1, which can concentrate the raw materials and facilitate the discharge of the crushed raw materials.

[0032] In a specific embodiment: after the raw material is added into the first shell 3, the first nozzle 4 sprays a high-speed airflow through an external air source, thereby blowing the raw material along the inner wall of the "peach-shaped" first shell 3 from bottom to top, and then the raw material particles fall down due to their own gravity, forming a tumbling high-speed motion from bottom to top and from outside to inside. The raw materials will collide with each other during the movement, thereby converting the raw materials from large particles to small particles (i.e., crushing).

[0033] like Figure 2 , Figure 6 and Figure 7 As shown, the air flow pulverizer for adhesive production line includes a feeding and discharging device, which includes a motor 11, a collision rod 12, a feeding pipe 14, a third guide plate 15 and a second rotating ring 16. The motor 11 is arranged below the chassis 1, and the feeding pipe 14 is fixed in the opening above the first shell 3 through a second shell 18 arranged outside the first shell 3. The third guide plate 15 is slidably installed on the lower end of the feeding pipe 14 through a slide plate 26 arranged inside. The upper end of the third guide plate 15 is a downwardly inclined arc surface that fits with the first shell 3, and the upper end of the slide plate 26 is an outward hook. A sliding groove that fits with the slide plate 26 is opened on the material pipe 14, and the second swivel 16 is installed on the upper end of the material feed pipe 14 through a thread provided on the inner side. The lower end of the second swivel 16 is rotatably connected to the slide plate 26, and a sliding groove corresponding to the slide plate 26 is provided on the inner side of the lower end of the second swivel 16. A collision rod 12 is provided on the output shaft of the motor 11, and the collision rod 12 is located below the material feed pipe 14. A collision block 13 is provided at the end of the collision rod 12, and a downward inclined surface is provided at the front end of the collision block 13. The output shaft of the motor 11 is also provided with a worm 17 located in the material feed pipe 14 and in contact with the inner wall of the material feed pipe 14.

[0034] In a specific embodiment: when feeding, the motor 11 rotates through an external power supply, driving the collision rod 12 and the worm 17 to rotate, and then the raw materials are added from the upper end of the feeding pipe 14, and the raw materials are evenly added into the first housing 3 through the rotating worm 17. At the same time, the worm 17 can prevent the high-speed airflow at the lower end from entering the feeding pipe 14 to affect the addition of the raw materials, and then the added raw materials are dispersed through the rotating collision rod 12 to prevent the raw materials from agglomerating;

[0035] During crushing, the collision rod 12 drives the collision block 13 to rotate, and the collision rod 12 and the collision block 13 will hit the raw material particles in the middle layer inside the first shell 3, and assist the raw material to be crushed. At the same time, the raw material in the upper layer inside the first shell 3 will roll down and collide with the upper surface of the collision block 13, and assist the raw material to be crushed. In addition, the front end inclined surface of the collision block 13 will make the angle when colliding with the raw material close to vertical, so as to maximize the impact force.

[0036] During discharge, tiny and lighter raw material particles generated during the crushing process will pass through the third guide plate 15 and the first shell 3 through the rising airflow, and then be discharged through the holes above the first shell 3. Then, by rotating the second rotating ring 16, the second rotating ring 16 drives the slide plate 26 and the third guide plate 15 to slide up and down, thereby adjusting the size of the gap between the third guide plate 15 and the first shell 3. The larger the gap between the third guide plate 15 and the first shell 3, the larger the discharged raw material particles are, and the smaller the gap between the third guide plate 15 and the first shell 3, the smaller the discharged raw material particles are.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, the air flow pulverizer for the adhesive production line includes an adjusting device, which includes a first guide plate 5, a second guide plate 6 and a first swivel 9. The first guide plates 5 and the second guide plates 6 are rotatably mounted on the chassis 1 in groups of two, and each group of the first guide plates 5 and the second guide plates 6 is located in front of the corresponding first nozzle 4. The first guide plates 5 and the second guide plates 6 are wing-like in shape with a thick front end and a thin rear end. The first guide plates 5 and the second guide plates 6 are meshed and dynamically connected through a first gear 7 provided below. A second gear 8 is provided below the first guide plate 5. The first swivel 9 is rotatably mounted below the chassis 1. A corresponding limiting groove is provided on the first swivel 9. A gear ring 10 is provided on the inner side of the first swivel 9 to mesh with the second gear 8, and a handle is provided on the outer side of the first swivel 9.

[0038] In a specific embodiment: during crushing, the first nozzle 4 will blow the raw materials in front, and the raw materials will move forward and left and right through the guidance of the first guide plate 5 and the second guide plate 6, so that the raw materials between two adjacent sets of the first guide plates 5 and the second guide plates 6 will collide with each other, thereby improving the efficiency of raw material crushing;

[0039] During adjustment, the first rotating ring 9 is rotated to make the gear ring 10 drive the second gear 8 to rotate, and the first guide plate 5 and the second guide plate 6 are meshed through the first gear 7, thereby changing the angle between the first guide plate 5 and the second guide plate 6. The larger the angle (the upper limit is 90°), the higher the efficiency of raw material crushing, but the greater the wear of the first guide plate 5 and the second guide plate 6, and the shorter the service life of the first guide plate 5 and the second guide plate 6; the smaller the angle (the lower limit is 30°), the lower the efficiency of raw material crushing, but the smaller the wear of the first guide plate 5 and the second guide plate 6, and the longer the service life of the first guide plate 5 and the second guide plate 6.

[0040] like Figure 2 , Figure 8 and Fig. 9 As shown, the air flow pulverizer for the adhesive production line includes a discharge device, which includes a second shell 18, a fourth guide plate 19, a third shell 21, a sixth guide plate 24 and a second nozzle 25. The second shell 18 is a spherical shell that fits the first shell 3. The fourth guide plate 19 is arranged between the first shell 3 and the second shell 18. The fourth guide plate 19 is annular and radial. A fifth guide plate 20 is arranged on the inner side of the second shell 18 and the outer side of the first shell 3. The fifth guide plates 20 on both sides form an angle with a gap, and the gap becomes smaller as it goes down. The third shell 21 is arranged below the second shell 18 through a connecting pipe 22. The third shell 21 is connected to the second shell 18 through the connecting pipe 22. A sixth guide plate 24 with an annular radial shape is arranged in the middle of the inner side of the third shell 21. An inclined second nozzle 25 is arranged on the edge of the third shell 21. A discharge pipe 23 is opened below the third shell 21 for connecting to an external collecting device.

[0041] In a specific embodiment: the raw material particles discharged from the first shell 3 and subjected to preliminary crushing form a rotating particle flow through the fourth guide plate 19, and the raw material particles in the particle flow are rubbed and crushed against each other through the fifth guide plate 20, and enter the third shell 21 through the connecting pipe 22, and then are concentrated in the middle of the third shell 21 through the sixth guide plate 24 under the acceleration of the second nozzle 25, and are rotated and rubbed, thereby being concentratedly crushed, thereby achieving a crushing effect and facilitating the concentrated discharge of the crushed raw material particles.

[0042] Working principle: when feeding, the motor 11 rotates through an external power supply, driving the collision rod 12 and the worm 17 to rotate, and then the raw materials are added from the upper end of the feeding pipe 14. The raw materials are evenly added into the first shell 3 through the rotating worm 17. At the same time, the worm 17 can prevent the high-speed airflow at the lower end from entering the feeding pipe 14 to affect the addition of the raw materials. Then, the added raw materials are dispersed through the rotating collision rod 12 to prevent the raw materials from agglomerating. When crushing, the first nozzle 4 sprays a high-speed airflow through an external air source, thereby blowing the raw materials along the inner wall of the "peach-shaped" first shell 3 from bottom to top, and then the raw material particles fall due to their own gravity, forming a tumbling high-speed motion from bottom to top and from outside to inside. The raw materials will collide with each other during the movement, so that the raw materials are converted from large particles to small particles (i.e. crushed). Then the collision rod 12 drives the collision block 13 to rotate, and the collision rod 12 and the collision block 13 will hit the raw material particles in the middle layer inside the first shell 3 to assist in crushing the raw materials. At the same time, the raw materials in the upper layer of the first shell 3 will roll and fall against the surface of the collision block 13 The surfaces collide to assist the raw materials to be crushed. When discharging, the tiny and lighter raw material particles in the crushing process will pass through the third guide plate 15 and the first shell 3 through the rising airflow, and then be discharged through the holes above the first shell 3. Then, by rotating the second rotating ring 16, the second rotating ring 16 drives the slide plate 26 and the third guide plate 15 to slide up and down, thereby adjusting the gap size between the third guide plate 15 and the first shell 3. The larger the gap between the third guide plate 15 and the first shell 3, the larger the discharged raw material particles are, and the smaller the gap between the third guide plate 15 and the first shell 3, the smaller the discharged raw material particles are. Then, the raw material particles discharged from the first shell 3 after preliminary crushing pass through the fourth guide plate 19 to form a rotating particle flow, and the raw material particles in the particle flow are rubbed and crushed against each other through the fifth guide plate 20, and enter the third shell 21 through the connecting pipe 22, and then are concentrated in the middle of the third shell 21 through the sixth guide plate 24 under the acceleration of the second nozzle 25, and rotate and rub, so as to be concentratedly crushed.

Claims

1. An air flow pulverizer for an adhesive production line, comprising a chassis, a mounting block, a first shell and a first nozzle, wherein the first shell is disposed above the chassis, the mounting block is disposed on the chassis, and the first nozzle is mounted on the mounting block in a surrounding manner, characterized in that: The air flow pulverizer for adhesive production line also includes: a feeding and discharging device arranged above the mounting block, which can control the feeding of raw materials and adjust the particle size after preliminary pulverization; an adjusting device arranged on the chassis, which can adjust the pulverization efficiency during preliminary pulverization; a discharging device arranged below the chassis, which can centrally pulverize the raw materials and facilitate the discharge of the pulverized raw materials; The feeding and discharging device comprises a motor, a collision rod, a feeding pipe, a third guide plate and a second rotating ring. The motor is arranged below the chassis. The feeding pipe is fixed in an opening above the first housing through a second housing arranged outside the first housing. The third guide plate is slidably mounted on the lower end of the feeding pipe through a slide plate arranged on the inner side. The second rotating ring is mounted on the upper end of the feeding pipe through a thread arranged on the inner side. The lower end of the second rotating ring is rotatably connected to the slide plate. A slide groove corresponding to the slide plate is arranged on the inner side of the lower end of the second rotating ring. The motor output shaft is provided with a collision rod, the collision rod is located below the feed pipe, a collision block is provided at the end of the collision rod, and a downwardly inclined inclined surface is provided at the front end of the collision block. The motor output shaft is also provided with a worm located in the feed pipe and in contact with the inner wall of the feed pipe; The adjusting device comprises a first guide plate, a second guide plate and a first rotating ring. The first guide plates and the second guide plates are arranged in a group of two and are evenly rotatably mounted on the chassis. Each group of the first guide plates and the second guide plates is located in front of the corresponding first nozzle. A second gear is arranged below the first guide plate. The first rotating ring is rotatably mounted below the chassis. A corresponding limiting groove is provided on the first rotating ring. A gear ring is arranged inside the first rotating ring to mesh with the second gear. A handle is arranged outside the first rotating ring. The discharge device includes a second shell, a fourth guide plate, a third shell, a sixth guide plate and a second nozzle. The second shell is a spherical shell that fits the first shell. The fourth guide plate is arranged between the first shell and the second shell. The fourth guide plate is annular and radial. The third shell is arranged below the second shell through a connecting pipe. The third shell is connected to the second shell through the connecting pipe. A sixth guide plate with an annular radial shape is arranged in the middle of the inner side of the third shell. An inclined second nozzle is arranged at the edge of the third shell. A discharge pipe is opened below the third shell for connecting to an external collecting device. During discharging, tiny and lighter raw material particles produced during the crushing process will pass through the third guide plate and the first shell through the rising airflow, and then be discharged through the holes above the first shell. The larger the gap between the third guide plate and the first shell, the larger the discharged raw material particles, and the smaller the gap between the third guide plate and the first shell, the smaller the discharged raw material particles.

2. The air flow pulverizer for adhesive production line according to claim 1, characterized in that: The first nozzle is arranged to be inclined downward, and a spray hole which contracts first and then expands is provided at the front end of the first nozzle, so as to increase the speed of the sprayed gas.

3. The air flow pulverizer for adhesive production line according to claim 1, characterized in that: The upper end of the mounting block is in a pyramidal shape, which can guide the raw material to slide in front of the first nozzle, and the first shell is in a "peach-shaped" shape with a hole on the upper side.

4. The air flow pulverizer for adhesive production line according to claim 1, characterized in that: The upper end of the third guide plate is a downwardly inclined arc surface that matches the first shell, the upper end of the slide plate is an outward hook, and the feed pipe is provided with a slide groove that matches the slide plate.

5. The air flow pulverizer for adhesive production line according to claim 1, characterized in that: The first guide plate and the second guide plate are wing-like in shape with a thick front end and a thin rear end. The first guide plate and the second guide plate are meshed and connected in power through a first gear disposed below.

6. The air flow pulverizer for adhesive production line according to claim 1, characterized in that: A fifth guide plate is provided on the inner side of the second shell and the outer side of the first shell, and the fifth guide plates on both sides form an angle with a gap, and the gap becomes smaller as it goes downward.

Images