Cooling device

Abstract

The utility model discloses a cooling device which comprises a heat dissipation part, a transmission part and a cooling part. The heat dissipation part is arranged between an extrusion mechanism and a pelletizing mechanism of the pelletizer and comprises an isolation hood, a containing space is formed in the isolation hood, and at least one via hole communicated with the containing space is formed in the top of the isolation hood. The conveying part is arranged in the containing space and used for conveying a plurality of material strips extruded by an extrusion mechanism of the pelletizer to the pelletizing mechanism. The cooling part is arranged in the containing space and is adjacent to the conveying part, the cooling part provides cold air, and the cold air is blown out from the bottom of the containing space so that heat on the multiple material strips can be discharged to a peripheral waste gas collecting pipeline through the via holes. The utility model provides a cooling device which is higher in cooling efficiency, lower in cooling noise and more environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granulation equipment, in particular to a cooling device. Background Art

[0002] The granulator is a commonly used compound raw material molding equipment, which can continuously extrude the molten polymer from the hot die to form a continuous linear material, and then cool it through the cooling mechanism to solidify the linear material, and then send it to the pelletizing mechanism to cut it into particles of specific specifications. The linear material extruded by the extruder is molten and deformable. If the cooling efficiency is insufficient, it is easy to cause the linear material to stick together, so that the particles after pelletizing are also adhered to each other, affecting the quality of the finished particles.

[0003] Common cooling methods include water cooling, air cooling, contact heat conduction, and their combination. However, for some special materials, due to product characteristics, only air cooling can be used. Figure 1 As shown in the figure, the extruded linear material is placed on a conveyor belt several meters long, and during the conveying process, it is cooled by blowing air downwards through the fan directly above. The main problems of this cooling method are that the heat generated during the cooling process will gradually increase the working environment temperature of the workshop, and the hot air after downward air cooling will continue to float upwards, which is not conducive to continuous cooling. At the same time, the exhaust gas is not easy to collect and treat, and the external fan has certain noise pollution and other problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a cooling device, aiming to solve the technical problems that the existing granulator cooling device has poor continuous cooling effect, waste gas is not easy to collect, and the external air cooling device has noise pollution.

[0005] To achieve the above object, the cooling device proposed in the utility model is applied to a granulator, the granulator includes an extrusion mechanism and a pelletizing mechanism, and the cooling device includes:

[0006] The heat dissipation part is arranged between the extrusion mechanism and the pelletizing mechanism of the granulator, and comprises an isolation cover, a receiving space is arranged inside the isolation cover, and at least one through hole connected to the receiving space is opened on the top of the isolation cover;

[0007] A conveying part, arranged in the accommodating space, for conveying a plurality of material strips extruded by the extrusion mechanism of the granulator to the granulation mechanism;

[0008] The cooling part is arranged in the accommodating space and adjacent to the conveying part. The cooling part provides cold air, which is blown out from the bottom of the accommodating space to discharge the heat on the plurality of material strips to the peripheral exhaust gas collection pipe through the through holes.

[0009] Optionally, the conveying part includes a plurality of rollers, and the plurality of rollers are arranged in an up-down staggered interval arrangement along the material strip conveying direction; one of the material strips passes through one end of the remaining plurality of rollers arranged in an up-down staggered interval arrangement along the material strip conveying direction in sequence from one end of one of the rollers, and then passes horizontally out to the pelletizing mechanism; the remaining material strips are arranged in sequence from one end of one of the rollers to the other end of one of the rollers, and passes through the remaining plurality of rollers arranged in an up-down staggered interval arrangement along the material strip conveying direction, and then passes horizontally and parallelly out to the pelletizing mechanism with one of the material strips;

[0010] Alternatively, the conveying portion includes a plurality of rollers, which are arranged horizontally at intervals along the material strip conveying direction; one material strip passes through one end of the remaining plurality of rollers arranged horizontally at intervals along the material strip conveying direction from one end of one of the rollers in sequence, and then passes horizontally out to the pelletizing mechanism; the remaining material strips are arranged sequentially at intervals from one end of one of the rollers to the other end of one of the rollers, and pass through the remaining plurality of rollers arranged horizontally at intervals along the material strip conveying direction, and then pass horizontally and parallelly with one of the material strips out to the pelletizing mechanism.

[0011] Optionally, a cooling cavity is provided in at least one of the drums, and a water inlet cavity and a water outlet cavity connected to the cooling cavity are provided on at least one of the drums.

[0012] Optionally, the cooling portion comprises a blowing device, which is disposed in the accommodating space and adjacent to the roller away from the extrusion mechanism.

[0013] Optionally, the blowing direction of the blowing device is opposite to the advancing direction of the material strips and is arranged at an angle with the horizontal direction, and the angle is 0-90°;

[0014] Alternatively, the blowing direction of the blowing device is opposite to the advancing direction of the material strips and is arranged at an angle with the horizontal direction, and the angle is 10-80°.

[0015] Optionally, the cooling section includes a plurality of blowing devices, and the plurality of blowing devices are arranged in the accommodating space at intervals along the material strip conveying direction, and one blowing device is arranged adjacent to one of the rollers.

[0016] Optionally, the blowing directions of the plurality of blowing devices are opposite to the advancing direction of the material strips and are arranged at an angle with the horizontal direction, and the angle is 0-90°;

[0017] Alternatively, the blowing directions of the plurality of blowing devices are opposite to the advancing direction of the material strips and are arranged at an angle to the horizontal direction, and the angle is 10-80°.

[0018] Optionally, at least one row of tooth combs is fixed to at least one of the rollers along the axial direction, and the tooth combs separate two adjacent material strips.

[0019] Optionally, the isolation cover is provided with a movable door.

[0020] Optionally, a heat dissipation cover is provided on at least one of the via holes, and an exhaust fan is provided at the opening of the heat dissipation cover.

[0021] The utility model cooling device comprises a heat dissipation part, a transmission part and a cooling part. The heat dissipation part is arranged between the extrusion mechanism and the pelletizing mechanism of the granulator, and comprises an isolation cover. A accommodating space is arranged in the isolation cover. At least one through hole connected to the accommodating space is opened on the top of the isolation cover. A transmission part and a cooling part are further arranged in the accommodating space. At the same time, cold air provided by the cooling part is blown out from the bottom of the accommodating space to take away the heat on a plurality of material strips and then discharged to the peripheral exhaust gas collection pipe through the through hole, so that the cold air blown from bottom to top is more conducive to the continuous cooling of the material strips. The arrangement of the isolation cover is not only conducive to the treatment of exhaust gas but also conducive to reducing noise. The centralized treatment of exhaust gas after collection can reduce the direct discharge of exhaust gas, reduce the production environment temperature, reduce the surrounding noise and other advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of a cooling device for a granulator in the prior art;

[0024] Figure 2 This is a schematic diagram of the structure of a viewing angle of an implementation of the utility model;

[0025] Figure 3 This is a perspective structural diagram of another embodiment of the utility model;

[0026] Figure 4 This is a structural schematic diagram of an arrangement method of rollers in one embodiment of the utility model;

[0027] Figure 5 This is a structural schematic diagram of another arrangement method of rollers in accordance with the present utility model;

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] Existing solutions such as Figure 1As shown, the traditional granulation process includes several main steps, such as extruder 1 extruding linear material 5, conveyor belt 2 conveying linear material 5 and cooling system for air cooling, pelletizer 3 cutting into pellets. Among them, in the cooling process of the extruded material strip, the traditional cooling method is to place the extruded linear material 5 on a conveyor belt 2 several meters long, and during the conveying process, the fan 4 directly above is used to blow air downward for cooling. The main problem of this cooling method is that the heat generated during the cooling process will gradually increase the working environment temperature of the workshop, and the hot air after downward air cooling will continue to float upward, which is not conducive to continuous cooling. At the same time, the exhaust gas is not easy to collect and treat, and the external fan has certain noise pollution. In view of this situation, a cooling device is proposed.

[0037] The cooling device 100 provided by the utility model is applied to a granulator, which includes an extrusion mechanism 50 and a pelletizing mechanism 60. The cooling device 100 includes a heat dissipation part 30, a conveying part 10 and a cooling part 20. The heat dissipation part 30 is arranged between the extrusion mechanism 50 and the pelletizing mechanism 60 of the granulator, and includes an isolation cover 31, in which a receiving space 31A is arranged, and at least one through hole 31B connected to the receiving space 31A is opened on the top of the isolation cover 31. The conveying part 10 is arranged in the receiving space 31A, and is used to convey the multiple material strips 40 extruded by the extrusion mechanism 50 of the granulator to the pelletizing mechanism 60. The cooling part 20 is arranged in the receiving space 31A and is arranged adjacent to the conveying part 10. The cooling part 20 provides cold air, which is blown out from the bottom of the receiving space 31A to discharge the heat on the multiple material strips 40 to the peripheral exhaust gas collection pipe through the through hole 31B.

[0038] In one embodiment, in conjunction with reference Figure 2 and Figure 3 The cooling part 20 is arranged in the accommodating space 31A and is arranged adjacent to the conveying part 10. The cooling part 20 provides cold air, which is blown out from the bottom of the accommodating space 31A to discharge the heat on the multiple material strips 40 to the peripheral exhaust gas collection pipe through the through hole 31B arranged on the top of the isolation cover. The blowing mode of the cold air is changed from top to bottom to bottom to bottom to top, which can avoid the top from blowing to the bottom, that is, the hot air after downward air cooling continues to float upward, so that the hot air can continue to float upward and then be discharged to the outside atmosphere from the through hole 31B, which can better achieve the continuous cooling effect of the material strips 40. Collecting the exhaust gas and centrally treating it can reduce the direct discharge of exhaust gas, reduce the production environment temperature, and reduce the surrounding noise.

[0039] Preferably, a heat dissipation cover 32 is provided on at least one through hole 31B, and an exhaust fan is provided at the opening of the heat dissipation cover 32 .

[0040] In one embodiment, in conjunction with reference Figure 2 and Figure 3The heat dissipation part 30 is arranged between the extrusion mechanism 50 and the pelletizing mechanism 60 of the pelletizer, and includes an isolation cover 31, a receiving space 31A is arranged in the isolation cover 31, and at least one through hole 31B connected to the receiving space 31A is opened on the top of the isolation cover 31. The isolation cover 31 is provided, which is not only conducive to the gathering and collection of hot exhaust gas, but also conducive to reducing the noise during the cooling process. Further, at least one through hole 31B connected to the receiving space 31A is opened on the top of the isolation cover 31 to facilitate the discharge of hot exhaust gas.

[0041] Preferably, the isolation cover 31 is provided with a movable door.

[0042] In one embodiment, in conjunction with reference Figure 2 and Figure 3 The conveying part 10 is arranged in the accommodation space 31A, and is used to convey the plurality of material strips 40 extruded by the extrusion mechanism 50 of the granulator to the pelletizing mechanism 60. By providing the conveying part 10, the material strips 40 extruded by the extrusion mechanism 50 of the granulator can be conveyed from the extrusion mechanism 50 to the pelletizing mechanism 60 to realize the pelletizing process of the material strips 40. The conveying part 10 and the cooling part 20 are arranged in the isolation cover 31 at the same time, which can better realize the rapid cooling of the moving material strips 40 and reduce the noise.

[0043] The cooling device 100 provided by the utility model comprises a heat dissipation part 30, a conveying part 10 and a cooling part 20. The heat dissipation part 30 is arranged between the extrusion mechanism 50 and the pelletizing mechanism 60 of the granulator, and comprises an isolation cover 31, in which a receiving space 31A is arranged, and at least one through hole 31B connected to the receiving space 31A is opened on the top of the isolation cover 31. The conveying part 10 is arranged in the receiving space 31A, and is used to convey the multiple material strips 40 extruded by the extrusion mechanism 50 of the granulator to the pelletizing mechanism 60. The cooling part 20 is arranged in the receiving space 31A and is arranged adjacent to the conveying part 10. The cooling part 20 provides cold air, which is blown out from the bottom of the receiving space 31A to discharge the heat on the multiple material strips 40 to the peripheral exhaust gas collection pipe through the through hole 31B.

[0044] In one embodiment, in conjunction with reference Figure 2 and Figure 3 The conveying part 10 includes a plurality of rollers 11, and the plurality of rollers 11 are arranged in an up-down staggered interval arrangement along the conveying direction of the material strip 40; a material strip 40 passes through one end of the remaining plurality of rollers 11 arranged in an up-down staggered interval arrangement along the conveying direction of the material strip 40 from one end of a roller 11 in sequence, and then passes horizontally out to the pelletizing mechanism 60; the remaining material strips 40 are arranged in sequence from one end of a roller 11 to the other end of a roller 11, and pass through the remaining plurality of rollers 11 arranged in an up-down staggered interval arrangement along the conveying direction of the material strip 40, and then pass horizontally and parallelly with the material strip 40 out to the pelletizing mechanism 60.

[0045] It can be understood that the manner in which multiple rollers 11 are arranged in an up-down staggered interval along the conveying direction of the strips 40 can greatly reduce the floor space of the conveying part 10 and improve the space utilization rate. Furthermore, two adjacent strips 40 must be arranged in parallel on the rollers 11 at intervals, and horizontally wound to the pelletizing mechanism 60. One strip 40 is wound horizontally to the pelletizing mechanism 60 from one end of one roller 11 and then wound around one end of the other multiple rollers 11 arranged in an up-down staggered interval along the conveying direction of the strips 40. The other strips 40 are arranged in intervals from one end of one roller 11 to the other end of one roller 11, and then wound horizontally and parallelly with one strip 40 to the pelletizing mechanism 60 after winding around the other multiple rollers 11 arranged in an up-down staggered interval along the conveying direction of the strips 40. This can prevent the adjacent strips 40 extruded from the extrusion mechanism 50 from sticking to each other.

[0046] In one embodiment, in conjunction with reference Figure 4 or Figure 5 The conveying part 10 includes a plurality of rollers 11, and the plurality of rollers 11 are arranged horizontally and spaced apart along the conveying direction of the material strips 40; a material strip 40 passes through one end of the remaining plurality of rollers 11 arranged horizontally and spaced apart along the conveying direction of the material strips 40 from one end of a roller 11 in sequence, and then passes horizontally out to the pelletizing mechanism 60; the remaining material strips 40 are arranged sequentially and spaced apart from one end of a roller 11 to the other end of a roller 11, and pass through the remaining plurality of rollers 11 arranged horizontally and spaced apart along the conveying direction of the material strips 40, and then pass horizontally and parallelly with the material strip 40 out to the pelletizing mechanism 60.

[0047] It can be understood that the horizontal spacing arrangement of multiple rollers 11 along the conveying direction of the strip 40 can greatly reduce the floor space of the conveying unit 10 and improve the space utilization. Figure 4 The horizontal spacing is shown in parallel arrangement, but it can also be arranged in Figure 5 Furthermore, two adjacent strips 40 must be arranged in parallel on the roller 11 and wound horizontally to the pelletizing mechanism 60. One strip 40 is wound horizontally to the pelletizing mechanism 60 after passing through one end of the other multiple rollers 11 arranged horizontally and spaced in the direction of conveying the strips 40 from one end of the roller 11 in sequence. The remaining strips 40 are arranged in sequence from one end of the roller 11 to the other end of the roller 11 and wound horizontally and parallelly with one strip 40 after passing through the other multiple rollers 11 arranged horizontally and spaced in the direction of conveying the strips 40. This can prevent the adjacent strips 40 extruded from the extrusion mechanism 50 from sticking to each other.

[0048] To further improve the cooling effect of the conveying part 10 , in one embodiment, a cooling cavity is provided in at least one of the drums 11 , and a water inlet cavity and a water outlet cavity communicating with the cooling cavity are provided on at least one of the drums 11 .

[0049] In one embodiment, the drum 11 includes a rotating roller, a fixed shaft, a water inlet pipe and a water suction pipe. The rotating roller is mounted on the fixed shaft. Both ends of the rotating roller extend inward to form a drum end face. A mounting hole is provided at the center of each drum end face. A connecting flange is installed in each mounting hole. A bearing is fixed to each connecting flange. Each bearing is correspondingly installed at one end of the bearing. A cooling chamber is formed between the two drum end faces, the rotating roller and the fixed shaft. A water inlet chamber and a water suction chamber are formed in the fixed shaft at intervals along the axial direction. A plurality of water spray ports and at least one water suction port are provided on the fixed shaft. Each water spray port extends toward the inner wall of the rotating roller. The water spray ports are evenly distributed on the fixed shaft and connected to the water inlet chamber. The water inlet pipe is connected to one end of the water inlet chamber to supply water to the water inlet chamber. The water suction port extends downward and connects to the water suction chamber. The water suction pipe is provided in the water suction chamber and one end of the water suction pipe extends toward the bottom of the rotating roller to absorb water at the bottom of the rotating roller. The inner wall of the rotating roller is cooled by spraying water through the water spray port on the fixed shaft. The rotating roller is always in a rotating state during operation. The cooling water sprayed by the water spray port on the inner wall of the rotating roller adheres to the inner wall of the rotating roller under the action of centrifugal force, and the water suction port absorbs the cooling water attached to the inner wall of the rotating roller. This process can achieve the cooling of the rotating roller, and the rotating roller can cool the material strip 40 on the rotating roller while preventing it from sticking to the roller.

[0050] In one embodiment, the drum 11 can also include a rotating roller, a fixed shaft, a water inlet chamber and a water outlet chamber. The rotating roller is mounted on the fixed shaft. Both ends of the rotating roller extend inward to form a roller end face. The two roller end faces and the rotating roller are surrounded by a cooling chamber. The water inlet chamber and the water outlet chamber are respectively arranged on both sides of the rotating roller and are connected to the cooling chamber. At the same time, they are connected to the external water inlet pipe and drainage pipe to facilitate water intake and drainage. This process can achieve cooling of the rotating roller, and the rotating roller can cool the material strips 40 on the rotating roller while preventing sticking to the roller.

[0051] Of course, the drum 11 can also be a self-powered structure such as a power drum, which can actively rotate forward and reverse, as long as the rotation and cooling functions of the drum 11 can be achieved.

[0052] In order to better realize the installation and discharge of the rollers 11, in one embodiment, the conveying part 10 may also include a conveying frame, and a plurality of rollers 11 are arranged in an up-down staggered interval or horizontal interval arrangement along the conveying direction of the material strip 40 on the conveying frame. The specific structure of the conveying frame is set according to the actual situation and is not limited here. Further, the fixed shaft in the above-mentioned roller 11 is rotatably connected to the conveying frame.

[0053] In one embodiment, please refer to Figure 2 The cooling unit 20 includes a blowing device 21 , which is disposed in the accommodating space 31A and adjacent to the roller 11 away from the extrusion mechanism 50 .

[0054] In one embodiment, the blowing direction of the blowing device 21 is opposite to the advancing direction of the material strip 40 and is arranged to form an angle with the horizontal direction, and the angle is 0-90°.

[0055] In one embodiment, the blowing direction of the blowing device 21 is opposite to the advancing direction of the material strip 40 and is arranged to form an angle with the horizontal direction, and the angle is 10-80°.

[0056] It can be understood that the blowing device 21 can be a device that can blow out cold air, such as a fan, a hair dryer, or a blower. The blowing device 21 is arranged in the accommodating space 31A and is arranged adjacent to the roller 11 away from the extrusion mechanism 50. The blowing direction of the blowing device 21 is opposite to the forward direction of the material strip 40. Furthermore, the through hole 31B is opened at one end of the roller 11 away from the extrusion mechanism 50 at the top of the isolation cover 31. At this time, the cold air blown out by the blowing device 21 is blown from the rear end to the front end, which can improve the utilization rate of air cooling. Furthermore, the blowing direction of the blowing device 21 is set at an angle with the horizontal direction, and the angle is 0-90°. The angle can be any degree such as 0°, 10°, 20°, 30°, 40°, 50°, 60°, 60°, 70°, 80°, 90°, etc. The setting of the angle is adjusted according to the spacing between the front and rear rollers 11. It is further preferred that the angle is 10-80°, so that the cold wind is blown out from the bottom obliquely upward to increase the area of ​​the air flow for air cooling of the material strip 40, thereby further improving the air cooling utilization rate. At the same time, the through hole 31B is opened at one end of the roller 11 at the top of the isolation cover 31 away from the extrusion mechanism 50, which is also more conducive to the centralized collection and discharge of waste heat.

[0057] In one embodiment, please refer to Figure 3 The cooling section 20 includes a plurality of blowing devices 21 , which are arranged in the accommodating space 31A at intervals along the conveying direction of the material strip 40 , and a blowing device 21 is arranged adjacent to a roller 11 .

[0058] In one embodiment, the blowing directions of the plurality of blowing devices 21 are opposite to the advancing direction of the material strips 40 and are arranged to form an angle with the horizontal direction, and the angle is 0-90°.

[0059] In one embodiment, the blowing directions of the plurality of blowing devices 21 are opposite to the advancing direction of the material strips 40 and are arranged to form an angle with the horizontal direction, and the angle is 10-80°.

[0060] It can be understood that the blowing device 21 can be a device that can blow out cold air, such as a fan, a hair dryer, or a blower. Multiple blowing devices 21 are arranged in the accommodating space 31A at intervals along the conveying direction of the material strips 40. A blowing device 21 is arranged adjacent to a roller 11, and the blowing direction of the blowing device 21 is opposite to the forward direction of the material strips 40. Further, at least one through hole 31B is opened on the top of the isolation cover 31 and is arranged corresponding to the position of the blowing device 21. For example, for a blowing device 21, a through hole 31B can be opened corresponding to the top of the isolation cover 31. In this way, the cold air blown out by a blowing device 21 carries the heat on the multiple material strips 40 and is discharged to the outside atmosphere through the corresponding through hole 31B, which can improve the utilization rate of air cooling. Furthermore, the blowing directions of the multiple blowing devices 21 are set at an angle with the horizontal direction, and the angle is 0-90°. The angle can be any degree such as 0°, 10°, 20°, 30°, 40°, 50°, 60°, 60°, 70°, 80°, 90°, etc. The setting of the angle is adjusted according to the spacing between the front and rear rollers 11. Further preferably, the angle is 10-80°, so that the cold air is blown out from the bottom obliquely upward to increase the area of ​​the airflow for air cooling of the material strips 40, thereby further improving the air cooling utilization rate.

[0061] In one embodiment, at least one row of tooth combs is fixed to at least one of the rollers 11 along the axial direction, and the tooth combs separate two adjacent material strips 40 .

[0062] It can be understood that by providing a tooth comb, manual winding of the material strip 40 to the drum 11 can be avoided, which can improve efficiency and save resources.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling device (100) applied to a granulator, wherein the granulator comprises an extrusion mechanism (50) and a granulation mechanism (60), characterized in that: The cooling device (100) comprises: A heat dissipation part (30) is arranged between the extrusion mechanism (50) and the pelletizing mechanism (60) of the pelletizer, and comprises an isolation cover (31), a receiving space (31A) is arranged in the isolation cover (31), and at least one through hole (31B) communicating with the receiving space (31A) is opened on the top of the isolation cover (31); A conveying portion (10), disposed in the accommodating space (31A), and used for conveying a plurality of material strips (40) extruded by an extrusion mechanism (50) of a granulator to a granulation mechanism (60); A cooling section (20) is disposed in the accommodating space (31A) and adjacent to the conveying section (10). The cooling section (20) provides cold air, which is blown out from the bottom of the accommodating space (31A) to discharge the heat on the plurality of material strips (40) through the through holes (31B) to the peripheral exhaust gas collection pipe.

2. The cooling device (100) according to claim 1, characterized in that: The conveying section (10) comprises a plurality of rollers (11), and the plurality of rollers (11) are arranged in an up-down staggered interval arrangement along the conveying direction of the material strip (40); one of the material strips (40) passes through one end of the remaining plurality of rollers (11) arranged in an up-down staggered interval arrangement along the conveying direction of the material strip (40) in sequence from one end of the roller (11), and then passes horizontally out to the pelletizing mechanism (60); the remaining material strips (40) are arranged in sequence from one end of the roller (11) to the other end of the roller (11), and pass through the remaining plurality of rollers (11) arranged in an up-down staggered interval arrangement along the conveying direction of the material strip (40), and then passes horizontally out to the pelletizing mechanism (60) in parallel with the one of the material strips (40); Alternatively, the conveying section (10) comprises a plurality of rollers (11), and the plurality of rollers (11) are arranged horizontally and spaced apart along the conveying direction of the material strip (40); one of the material strips (40) sequentially passes around one end of the remaining plurality of rollers (11) arranged horizontally and spaced apart along the conveying direction of the material strip (40) from one end of one of the rollers (11), and then horizontally passes out to the pelletizing mechanism (60); the remaining material strips (40) are sequentially spaced apart from one end of one of the rollers (11) to the other end of one of the rollers (11), and pass around the remaining plurality of rollers (11) arranged horizontally and spaced apart along the conveying direction of the material strip (40), and then pass horizontally and parallel to one of the material strips (40) and pass out to the pelletizing mechanism (60).

3. The cooling device (100) according to claim 2, characterized in that: A cooling cavity is provided in at least one of the drums (11), and a water inlet cavity and a water outlet cavity communicating with the cooling cavity are provided on at least one of the drums (11).

4. The cooling device (100) according to claim 2, characterized in that: The cooling portion (20) comprises a blowing device (21), and the blowing device (21) is arranged in the accommodating space (31A) and is arranged adjacent to the roller (11) away from the extrusion mechanism (50).

5. The cooling device (100) according to claim 4, characterized in that: The blowing direction of the blowing device (21) is opposite to the advancing direction of the material strip (40), and is arranged at an angle with the horizontal direction, and the angle is 0-90°; Alternatively, the blowing direction of the blowing device (21) is opposite to the advancing direction of the material strip (40), and is arranged to form an angle with the horizontal direction, and the angle is 10-80°.

6. The cooling device (100) according to claim 2, characterized in that: The cooling section (20) comprises a plurality of blowing devices (21), wherein the plurality of blowing devices (21) are arranged at intervals in the accommodating space (31A) along the conveying direction of the material strip (40), and a blowing device (21) is arranged adjacent to one of the rollers (11).

7. The cooling device (100) according to claim 6, characterized in that: The blowing directions of the plurality of blowing devices (21) are opposite to the advancing direction of the material strips (40) and are arranged at an angle with the horizontal direction, wherein the angle is 0-90°; Alternatively, the blowing directions of the plurality of blowing devices (21) are opposite to the advancing direction of the material strip (40), and are arranged to form an angle with the horizontal direction, wherein the angle is 10-80°.

8. The cooling device (100) according to any one of claims 2 to 7, characterized in that: At least one row of tooth combs is fixed axially on at least one of the rollers (11), and the tooth combs separate two adjacent material strips (40).

9. The cooling device (100) according to any one of claims 1 to 7, characterized in that: The isolation cover (31) is provided with a movable door.

10. The cooling device (100) according to any one of claims 1 to 7, characterized in that: At least one of the through holes (31B) is provided with a heat dissipation cover (32), and an exhaust fan is provided at the opening of the heat dissipation cover (32).

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