Membrane material melting device for producing coated sustained-release urea

Abstract

The utility model belongs to the field of melting devices, and particularly relates to a film material melting device for producing coated controlled-release urea, which comprises a melting tank, the top of the melting tank is communicated with a feeding hole; a motor is fixedly connected to the middle part of the feeding hole; a pair of gears is rotationally connected to the middle part of the feeding hole; the pair of gears are meshed with each other; one gear is fixedly connected with the output end of the motor; the middle part of the gear is fixedly connected with a crushing roller; the feeding hole is positioned between the gear and the crushing roller; fixing plates are symmetrically and fixedly connected to the inner side wall of the feeding opening; the bottom of the fixing plate is obliquely arranged; a plurality of first round holes are formed in the bottom of the fixing plate; the middle part of the fixed plate is communicated with an air pipe; and after being sprayed out from the first round holes, the airflow reaches the surfaces of the crushing rollers and cleans the crushing rollers, raw materials attached to the surfaces of the crushing rollers are reduced, the cleanliness of the surfaces of the crushing rollers is improved, and it is ensured that the crushing rollers can stably crush the raw materials.

Description

Technical Field

[0001] The utility model relates to the field of melting devices, in particular to a film material melting device for producing coated slow-release urea. Background Art

[0002] Controlled-release urea is a highly efficient nitrogen fertilizer. By coating its surface with a layer of semi-permeable or impermeable material, nutrients are slowly released through the micropores and gaps of the coating, thereby greatly reducing the dissolution rate of urea and achieving slow release of nitrogen.

[0003] Coating is a key product in the production of controlled-release urea. Its production steps mainly include raw material preparation, material melting, coating, solidification cooling, screening and grading, packaging and storage. Among them, the melting treatment allows the coating material to be placed in a melting device and heated to above its melting point, so that it melts into a liquid or high-viscosity fluid state.

[0004] Existing coating material melting devices usually crush the material first when used. During production and observation, it was found that when the crushing roller is used for too long, a large amount of material will adhere to the surface, which will affect the flatness of the crushing roller surface and thus affect the crushing effect of the crushing roller.

[0005] Therefore, in order to solve the above problems, a membrane material melting device for producing coated slow-release urea is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the membrane material melting device for the production of coated sustained-release urea described in the present invention comprises a melting tank; the top of the melting tank is connected to a feed port; a motor is fixedly connected to the middle of the feed port; a pair of gears are rotatably connected to the middle of the feed port; a pair of the gears are in a meshing relationship; one of the gears and the output end of the motor is fixedly connected; a crushing roller is fixedly connected to the middle of the gear; the feed port is located between the gear and the crushing roller; the inner side wall of the feed port is symmetrically fixed with a fixed plate; the bottom of the fixed plate is inclined; a plurality of first circular holes are opened at the bottom of the fixed plate; the middle of the fixed plate is connected to an air pipe; the air pipe and the feed port are through-set; after the air flow is ejected from the first circular hole, it will reach the surface of the crushing roller and clean it, reducing the raw materials attached to the surface of the crushing roller, improving the cleanliness of the surface of the crushing roller, and ensuring that the crushing roller can stably crush the raw materials.

[0008] Preferably, a plurality of fixing rods are fixed to the bottom of the fixing plate; a guide plate is fixed to the bottom of the fixing rod; the guide plate is an arc-shaped structure; a plurality of second circular holes are opened in the middle of the guide plate; through the cooperation of the guide plate and the second circular holes, the airflow will be diverted when passing through the guide plate, thereby expanding the flow range of the airflow and increasing the contact area between the airflow and the crushing roller and the raw material.

[0009] Preferably, the top of the fixed plate is tilted; the top of the fixed plate is rotatably connected to a plurality of wheels; the top of the fixed plate is fixedly connected to a plurality of partitions; when the raw materials enter the feed port, part of the raw materials will reach the surface of the fixed plate, at which time the raw materials will be separated by the partitions. At the same time, because the top of the fixed plate is tilted and under the action of the rotation of the wheels, the raw materials will quickly slide down the surface of the fixed plate, reducing the residual material on the surface of the fixed plate and improving the utilization rate of the material by the device.

[0010] Preferably, a plurality of elastic cloths are fixed to the top of the fixed plate; the rotating wheel is located between the elastic cloths and the fixed plate; the raw material will first reach the surface of the elastic cloths before falling to the surface of the fixed plate, and then the raw material will slide along the surface of the elastic cloths. The elastic cloths will reduce the direct contact between the raw material and the rotating wheel, reduce the situation where the raw material enters the gap between the rotating wheel and the fixed plate, and reduce the interference of the raw material on the rotating wheel.

[0011] Preferably, a pull rope is symmetrically fixed to the inner wall of the feed port; the middle part of the pull rope is rotatably connected to a plurality of rotating plates; the airflow flows out from the edge of the guide plate and reaches the rotating plate, and the rotating plate rotates under the action of the airflow, and collides with the fixed plate when the rotating plate rotates. After the fixed plate is collided, the vibration effect is transmitted to the guide plate and the elastic cloth, so that the raw materials attached to the surface can fall off faster, further reducing the raw materials attached to the surface of the fixed plate.

[0012] Preferably, a plurality of connecting rods are fixedly connected between adjacent rotating plates; the connecting rods are symmetrically arranged; the connecting rods will block the cavity between the guide plate and the fixed plate, reducing the situation where the raw materials pass through the cavity to reach the surface of the guide plate. At the same time, the connecting rods will also pull the rotating plates together as a whole, improve the overall structural stiffness, and enhance the impact effect when it collides with the fixed plate.

[0013] Preferably, a plurality of buffer pads are fixedly connected to the middle part of the rotating plate; the buffer pads are arranged in a circular array; when the rotating plate and the fixed plate come into contact, the buffer pads will first come into contact with the fixed plate. Because the buffer pads are made of flexible material, the buffer pads will absorb the impact generated when the rotating plate and the fixed plate come into contact, thereby reducing scratches on the surfaces of the rotating plate and the fixed plate caused by collision.

[0014] The utility model is beneficial in that:

[0015] 1. In the membrane material melting device for the production of coated sustained-release urea described in the present invention, the airflow ejected from the first circular hole will reach the surface of the crushing roller and clean it, thereby reducing the raw materials adhering to the surface of the crushing roller, improving the cleanliness of the surface of the crushing roller, and ensuring that the crushing roller can stably crush the raw materials.

[0016] 2. The membrane material melting device for the production of coated sustained-release urea described in the present invention, through the cooperation of the guide plate and the second circular hole, enables the airflow to be diverted when passing through the guide plate, thereby expanding the flow range of the airflow and increasing the contact area between the airflow and the crushing roller and the raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the main body of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the feed port in the utility model;

[0020] Figure 3 This is a schematic structural diagram of the fixing plate in the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the partition in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the transfer plate of the utility model.

[0023] In the figure: 1. Melting tank; 12. Feed port; 13. Motor; 14. Gear; 15. Crushing roller; 16. Fixed plate; 17. Air pipe; 18. First circular hole; 2. Fixed rod; 22. Guide plate; 23. Second circular hole; 3. Rotating wheel; 32. Partition; 4. Elastic cloth; 5. Draw rope; 52. Rotating plate; 6. Connecting rod; 7. Buffer pad. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] See also Figures 1 to 5 As shown, a film material melting device for producing coated slow-release urea described in an embodiment of the present invention comprises a melting tank 1; the top of the melting tank 1 is connected to a feed port 12; a motor 13 is fixedly connected to the middle of the feed port 12; a pair of gears 14 are rotatably connected to the middle of the feed port 12; a pair of gears 14 are in a meshing relationship; one of the gears 14 and the output end of the motor 13 are fixedly connected; a crushing roller 15 is fixedly connected to the middle of the gear 14; the feed port 12 is located between the gear 14 and the crushing roller 15; the inner side wall of the feed port 12 is symmetrically fixed with a fixing plate 16; the bottom of the fixing plate 16 is inclined; a plurality of first circular holes 18 are opened at the bottom of the fixing plate 16; the middle of the fixing plate 16 is connected to an air pipe 17; the air pipe 17 and the feed port 12 are through-set; when working, the material required for coating melting is poured into the interior of the melting tank 1 through the feed port 12, and the motor 13 will start to make one of the gears 14 rotate, and when the gear 14 rotates, it will mesh with the other gear 14, so that a pair of crushing rollers 15 will rotate at the same time. When the raw material passes through the feed port 12, it will be crushed by the crushing roller 15. At the same time, the air pipe 17 will be connected to a hot air blower so that the hot air flow will pass through the air pipe 17 into the interior of the fixed plate 16, and then the hot air flow will be ejected through the first circular hole 18. Because the bottom of the fixed plate 16 is inclined, the air flow will reach the surface of the crushing roller 15 after being ejected from the first circular hole 18. The air flow will clean the raw material attached to the surface of the crushing roller 15. At the same time, the hot air flow will also come into contact with the raw material and preheat it. Finally, the melting tank 1 will heat the raw material to melt it; after being ejected from the first circular hole 18, the air flow will reach the surface of the crushing roller 15 and clean it, reducing the raw material attached to the surface of the crushing roller 15, improving the cleanliness of the surface of the crushing roller 15, and ensuring that the crushing roller 15 can stably crush the raw material.

[0027] See also Figure 3 and Figure 4 As shown, a plurality of fixing rods 2 are fixed to the bottom of the fixing plate 16; a guide plate 22 is fixed to the bottom of the fixing rod 2; the guide plate 22 is an arc-shaped structure; a plurality of second circular holes 23 are opened in the middle of the guide plate 22; after the airflow is ejected from the first circular hole 18, it will reach the surface of the guide plate 22, at this time, part of the airflow will be ejected from the second circular hole 23, and the rest of the airflow will flow out from the edge of the guide plate 22; through the cooperation of the guide plate 22 and the second circular hole 23, the airflow will be diverted when passing through the guide plate 22, thereby expanding the flow range of the airflow and increasing the contact area between the airflow and the crushing roller 15 and the raw material.

[0028] See also Figure 3 and Figure 4As shown, the top of the fixed plate 16 is tilted; the top of the fixed plate 16 is rotatably connected to a plurality of wheels 3; the top of the fixed plate 16 is fixedly connected to a plurality of partitions 32; when the raw materials enter the feed port 12, part of the raw materials will reach the surface of the fixed plate 16, at which time the raw materials will be separated by the partitions 32. At the same time, because the top of the fixed plate 16 is tilted and under the rotation of the wheel 3, the raw materials will quickly slide down the surface of the fixed plate 16, reducing the residual material on the surface of the fixed plate 16 and improving the utilization rate of the material by the device.

[0029] See also Figure 3 As shown, a plurality of elastic cloths 4 are fixed to the top of the fixed plate 16; the rotating wheel 3 is located between the elastic cloths 4 and the fixed plate 16; the raw material will first reach the surface of the elastic cloths 4 before falling onto the surface of the fixed plate 16, and then the raw material will slide along the surface of the elastic cloths 4. The elastic cloths 4 will reduce the direct contact between the raw material and the rotating wheel 3, reduce the situation where the raw material enters the gap between the rotating wheel 3 and the fixed plate 16, and reduce the interference effect of the raw material on the rotating wheel 3.

[0030] See also Figure 2 and Figure 5 As shown, the inner wall of the feed port 12 is symmetrically fixed with a pull rope 5; the middle part of the pull rope 5 is rotatably connected to a plurality of rotating plates 52; the airflow flows out from the edge of the guide plate 22 and reaches the rotating plate 52, and the rotating plate 52 rotates under the action of the airflow, and the rotating plate 52 collides with the fixed plate 16 when rotating. After the fixed plate 16 is collided, the vibration effect is transmitted to the guide plate 22 and the elastic cloth 4, so that the raw materials attached to the surface can be accelerated to fall off, further reducing the raw materials attached to the surface of the fixed plate 16.

[0031] See also Figure 5 As shown, a plurality of connecting rods 6 are fixedly connected between adjacent rotating plates 52; the connecting rods 6 are symmetrically arranged; the connecting rods 6 will block the cavity between the guide plate 22 and the fixed plate 16, reducing the situation where the raw materials pass through the cavity to reach the surface of the guide plate 22. At the same time, the connecting rods 6 will also pull the rotating plates 52 into a whole, improve the overall structural rigidity, and enhance the impact effect when it collides with the fixed plate 16.

[0032] See also Figure 5 As shown, a plurality of buffer pads 7 are fixed to the middle of the rotating plate 52; the buffer pads 7 are arranged in a circular array; when the rotating plate 52 and the fixed plate 16 come into contact, the buffer pads 7 will first come into contact with the fixed plate 16. Because the buffer pads 7 are made of flexible material, the buffer pads 7 will absorb the impact generated when the rotating plate 52 and the fixed plate 16 come into contact, thereby reducing scratches on the surfaces of the rotating plate 52 and the fixed plate 16 caused by collision.

[0033] Working principle: The material required for coating melting is poured into the interior of the melting tank 1 through the feed port 12, and at the same time the motor 13 is started to rotate one of the gears 14, which is engaged with the other gear 14 when rotating, so that a pair of crushing rollers 15 are rotated at the same time. When the raw material passes through the feed port 12, it will be crushed by the crushing rollers 15. At the same time, the air pipe 17 is connected to the hot air blower so that the hot air flow passes through the air pipe 17 into the interior of the fixed plate 16, and then the hot air flow is ejected through the first circular hole 18. Because the bottom of the fixed plate 16 is tilted, the air flow is ejected from the first circular hole 18. After that, it will reach the surface of the crushing roller 15, and the airflow will clean the raw materials attached to the surface of the crushing roller 15. At the same time, the hot airflow will come into contact with the raw materials and preheat them. Finally, the melting tank 1 will heat the raw materials to melt them. After the airflow is ejected from the first circular hole 18, it will reach the surface of the guide plate 22. At this time, part of the airflow will be ejected from the second circular hole 23, and the rest of the airflow will flow out from the edge of the guide plate 22. When the raw materials enter the feed port 12, part of the raw materials will reach the surface of the fixed plate 16. At this time, the raw materials will be separated by the partition 32. At the same time, because the top of the fixed plate 16 is inclined, As a result, the raw materials will quickly slide down the surface of the fixed plate 16 under the action of the rotation of the runner 3, reducing the residual materials on the surface of the fixed plate 16; the raw materials will first reach the surface of the elastic cloth 4 before falling to the surface of the fixed plate 16, and then the raw materials will slide along the surface of the elastic cloth 4. The elastic cloth 4 will reduce the direct contact between the raw materials and the runner 3, and reduce the situation where the raw materials enter the gap between the runner 3 and the fixed plate 16; the airflow will flow out from the edge of the guide plate 22 and reach the rotating plate 52. The rotating plate 52 will rotate under the action of the airflow, and will collide with the fixed plate 16 when the rotating plate 52 rotates. After being hit, the vibration of 6 will be transmitted to the guide plate 22 and the elastic cloth 4, so that the raw materials attached to the surface can be accelerated to fall off; the connecting rod 6 will block the cavity between the guide plate 22 and the fixed plate 16, reducing the situation where the raw materials pass through the cavity to the surface of the guide plate 22. At the same time, the connecting rod 6 will also pull the rotating plate 52 into a whole, thereby improving the overall structural rigidity; when the rotating plate 52 and the fixed plate 16 come into contact, the buffer pad 7 will first come into contact with the fixed plate 16. Because the buffer pad 7 is made of flexible material, the buffer pad 7 will absorb the impact generated when the rotating plate 52 and the fixed plate 16 come into contact.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A film material melting device for producing coated slow-release urea, comprising a melting tank (1), characterized in that: The top of the melting tank (1) is connected to a feed port (12); a motor (13) is fixedly connected to the middle of the feed port (12); a pair of gears (14) are rotatably connected to the middle of the feed port (12); the pair of gears (14) are in a meshing relationship; one of the gears (14) and the output end of the motor (13) are fixedly connected; a crushing roller (15) is fixedly connected to the middle of the gear (14); the feed port (12) is located between the gear (14) and the crushing roller (15); a fixed plate (16) is symmetrically fixed to the inner side wall of the feed port (12); the bottom of the fixed plate (16) is inclined; a plurality of first circular holes (18) are opened at the bottom of the fixed plate (16); an air pipe (17) is connected to the middle of the fixed plate (16); the air pipe (17) and the feed port (12) are through-set.

2. The membrane material melting device for producing coated slow-release urea according to claim 1, characterized in that: The bottom of the fixing plate (16) is fixedly connected to a plurality of fixing rods (2); the bottom of the fixing rods (2) is fixedly connected to a guide plate (22); the guide plate (22) is an arc-shaped structure; and a plurality of second circular holes (23) are provided in the middle of the guide plate (22).

3. The membrane material melting device for producing coated slow-release urea according to claim 2, characterized in that: The top of the fixed plate (16) is tilted; the top of the fixed plate (16) is rotatably connected to a plurality of rotating wheels (3); and the top of the fixed plate (16) is fixedly connected to a plurality of partitions (32).

4. The membrane material melting device for producing coated slow-release urea according to claim 3, characterized in that: A plurality of elastic cloths (4) are fixedly connected to the top of the fixed plate (16); the rotating wheel (3) is located between the elastic cloths (4) and the fixed plate (16).

5. The membrane material melting device for producing coated slow-release urea according to claim 4, characterized in that: A pull rope (5) is symmetrically fixed to the inner side wall of the feed port (12); and a plurality of rotating plates (52) are rotatably connected to the middle portion of the pull rope (5).

6. The membrane material melting device for producing coated slow-release urea according to claim 5, characterized in that: A plurality of connecting rods (6) are fixedly connected between adjacent rotating plates (52); the connecting rods (6) are symmetrically arranged.

Images