Fluid rubber granulation cooling device

Abstract

The utility model provides a fluid rubber granulation cooling device, which relates to the technical field of rubber production equipment, including a granulation mechanism, a dehydration mechanism and a screening mechanism, a first air delivery component is provided between the dehydration mechanism and the screening mechanism, and a second air delivery component is provided at the discharge end of the screening mechanism; the granulation mechanism includes a granulation frame and a granulation cylinder, an underwater granulation component is provided at the discharge end of the granulation cylinder, and a circulating cooling mechanism is provided between the underwater granulation component and the dehydration mechanism; the underwater granulation component includes a granulation net, a granulation cover is provided at the outer cover of the granulation net, the upper end of the granulation cover is connected to the dehydration mechanism through a discharge pipe, and the lower end is connected to the circulating cooling mechanism through a water inlet pipe; a granulation motor is provided on the granulation frame, the output shaft of the granulation motor extends into the granulation cover and is provided with a granulation knife disk, and a circumferential array on the granulation knife disk is provided with a plurality of granulation cutters arranged along its radial direction. The utility model adopts underwater granulation, external circulation double cooling and two-stage negative pressure air delivery to reduce granulation odor, improve granulation cooling effect, and improve drying efficiency.

Description

Technical Field

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

[0002] Instant fluid black gold particles are made of tire tread materials as the main raw materials. After high-temperature shear de-crosslinking, the rubber SS or SC bonds are completely broken to form small molecules. The product is fluid at high temperatures and paste at room temperature. The fluid rubber after high-temperature de-crosslinking is mixed and modified with other polymer materials and then granulated. It is mainly used in tires, conveyor belts, shoe materials, waterproof materials, and asphalt pavement rubber modified materials. After application, it can effectively reduce the use of oil, carbon black, natural rubber, and styrene-butadiene rubber. In the production process of instant fluid black gold particles, the granulation method is generally open granulation, which has problems such as strong odor, short cooling distance, poor cooling effect, high particle temperature, high volatility, and poor on-site environment. Utility Model Content

[0003] The utility model aims to provide a fluid rubber granulation cooling device, which realizes the continuous production of granulation, dehydration, cooling and screening, and adopts underwater granulation to carry out granulation in the process, external circulation double cooling and two-stage negative pressure air delivery, reduces granulation odor, improves granulation cooling effect, realizes granule drying in the conveying process, and improves drying efficiency and effect.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A fluid rubber granulation cooling device comprises a granulation mechanism, a dehydration mechanism and a screening mechanism arranged in sequence, a first air delivery assembly is arranged between the dehydration mechanism and the screening mechanism, and a second air delivery assembly is arranged at the discharge end of the screening mechanism; the granulation mechanism comprises a horizontally arranged granulation frame, a granulation cylinder is arranged on the granulation frame along its length direction, and a feed hopper connected to the granulation cylinder is arranged above one end, and an underwater granulation assembly is connected to the other end, and a circulating cooling mechanism is arranged between the underwater granulation assembly and the dehydration mechanism;

[0006] A feeding screw arranged along the length direction is positioned and rotatably installed in the granulating cylinder, and two feeding screws with axes located on the same horizontal plane are arranged at the bottom of the feed hopper near the connection between the feed hopper and the granulating cylinder. The two feeding screws are parallel to the feeding screw and located above the feeding screw, and the axes of the feeding screws are located on the symmetry plane of the two feeding screws;

[0007] The underwater granulation assembly comprises a granulation net arranged at the discharge end of the granulation cylinder and coaxial therewith, the outer cover of the granulation net is provided with a granulation cover, the upper end of the granulation cover is connected to the dehydration mechanism through the discharge pipe, and the lower end of the granulation cover is connected to the circulation cooling mechanism through the water inlet pipe;

[0008] The granulation frame is also provided with a granulation bottom plate which slides along the length direction of the granulation cylinder, a granulation motor is installed on the granulation bottom plate, the output shaft of the granulation motor extends into the granulation cover and is provided with a granulation knife disc which is coaxial with the granulation cylinder, and a plurality of granulation cutters arranged radially are arranged in a circular array on the granulation knife disc.

[0009] By adopting the above technical scheme, the rubber material after desulfurization filtration and the modified material after internal mixing in the mixer are compounded and fed into the feed hopper. The feeding screws rotate in opposite directions to feed the mixed rubber material into the granulation cylinder. The feeding screws convey the rubber material forward to the underwater granulation component for underwater granulation. The granules formed by granulation are sent to the dehydration mechanism through the discharge pipe. After the dehydration mechanism removes the moisture in the granules, the granules are sent to the screening mechanism by the first air conveying component for screening, and the granules are dried for the first time during the feeding process of the first air conveying component. After the screening mechanism screens the granules according to the particle size, the qualified granules are sent out by the second air conveying component and dried for the second time during the feeding process. The water removed by the dehydration mechanism is cooled by the circulating cooling mechanism and then enters the underwater granulation component through the water inlet pipe for use, thereby realizing the circulating cooling utilization of the pelletizing water.

[0010] When the underwater granulation assembly in the granulation mechanism is working, the granulation bottom plate drives the granulation motor to move, and the output shaft of the granulation motor is extended into the granulation cover. When the feeding screw delivers the rubber, the rubber is squeezed out of the granulation net, and the granulation motor drives the granulation knife disk to rotate. The granulation knife cuts the rubber into rubber particles, and the formed rubber particles and the pelletizing water are sent to the dehydration mechanism from the discharge pipe. In this cycle, the underwater granulation of the rubber is realized, and the size of the rubber particles is determined by the aperture of the granulation net and the speed of the granulation motor, which meets the granulation needs of rubber particles of different sizes.

[0011] The utility model realizes continuous production of granulation, dehydration, cooling and screening by setting up continuous granulation mechanism, dehydration mechanism and screening mechanism, and adopts underwater granulation method to carry out granulation in the process, which reduces the granulation smell, and the outer surface of the rubber particles is quickly cooled by the pelletizing water to ensure the granulation quality of the rubber material. A circulating cooling mechanism is set between the dehydration mechanism and the underwater granulation component to realize the recycling of the pelletizing water, and the pelletizing water is heat exchanged and cooled during the circulation process to ensure its cooling effect on the rubber particles in the underwater granulation component. In addition, the first air delivery component and the second air delivery component not only realize the transportation of the rubber particles, but also realize the drying of the particles during the transportation process. The two-stage negative pressure air delivery effectively improves the drying efficiency and drying effect.

[0012] Furthermore, a granulation seat is provided at one end of the granulation cylinder away from the feed hopper, and a granulation plate sliding along the width direction of the granulation frame is provided on the granulation seat, the granulation net is detachably mounted on the granulation plate, and a spare net located on one side of the granulation plate is also detachably mounted on the granulation plate.

[0013] By adopting the above technical solution, the granulation plate is slidably installed in the granulation seat, and the granulation net and the spare net are used alternately and standby by moving the granulation plate, which can not only avoid the granulation net or the spare net from being blocked due to long-term use, affecting the granulation effect, but also ensure the continuity of the granulation work when cleaning the granulation net or the spare net. Among them, the granulation net and the spare net can be detachably installed on the granulation plate, which is not only convenient for disassembly and replacement to ensure the granulation effect, but also can replace the granulation net and the spare net with different apertures according to the size of the required granulated rubber material, meet the granulation needs of various specifications of rubber particles, and improve the scope of application.

[0014] Furthermore, the dehydration mechanism includes a vertically arranged dehydration shell and a centrifugal cylinder vertically arranged in the dehydration shell, the centrifugal cylinder is positioned and rotatably installed in the dehydration shell, and its outer wall is provided with a plurality of spiral guide vanes arranged in a circumference thereof and spirally upward; the outer wall of the dehydration shell is provided with a vertically arranged feed channel and connected with the bottom thereof, the upper end of the feed channel is connected with an end of the discharge pipe away from the granulation cover, the lower end is provided with a feed guide cover, and one of the spiral guide vanes located at the bottom is located in the outlet of the feed guide cover; a discharge guide cover is provided on the side of the dehydration shell away from the feed channel, one of the spiral guide vanes located at the top is located at the inlet of the discharge guide cover, and the outlet of the discharge guide cover is connected with the first air conveying component; a circulating water tank is provided below the dehydration shell, a drain outlet is provided at the bottom of the dehydration shell, the drain outlet is connected with the circulating water tank, and the circulating water tank is connected with the end of the water inlet pipe away from the granulation cover through a circulating cooling mechanism.

[0015] By adopting the above technical solution, the colloid particles prepared by the granulation mechanism enter the feed channel from the discharge pipe along with the pelletizing water, and are sent out from the discharge guide cover. During the rotation of the centrifugal drum, the colloid particles spiral upward along the spiral guide vanes, and the pelletizing water is thrown out under the action of centrifugal force and enters the circulating water tank from the drain port. The dehydrated colloid particles rise to the discharge guide cover along the spiral guide vanes, and are sent from the discharge guide cover to the screening mechanism by the first air delivery component. The centrifugal force of the rotation of the centrifugal drum is used to dehydrate the colloid particles, and the spiral guide vanes guide the rising and sending of the colloid particles, effectively ensuring the dehydration effect of the colloid particles. Among them, the circulating water tank is directly arranged below the dehydration mechanism as the water source of the underwater granulation component, so that there is no need to set up additional water receiving components of the dehydration mechanism, which effectively simplifies the structure.

[0016] Furthermore, a vertical filter is provided in the circulating water tank, and the vertical filter divides the circulating water tank into a first chamber located directly below the dehydration shell and a second chamber located on one side of the dehydration shell. The first chamber is provided with a horizontal filter located directly below the drain outlet and horizontally arranged, and the second chamber is connected to the circulating cooling mechanism.

[0017] By adopting the above technical scheme, the pelletizing water discharged from the dehydration mechanism enters the circulating water tank from the drain port, is first filtered by the horizontal filter screen and then enters the first chamber, and is then filtered by the vertical filter screen for the second time and then mixed with the pelletizing water in the second chamber, thus achieving two filtrations for the recycled pelletizing water, thereby ensuring the cleanliness of the recycled pelletizing water.

[0018] Furthermore, the circulating cooling mechanism includes a cooling water tank, a refrigerator and two heat exchangers connected in series, each of the heat exchangers includes a heat exchange shell and a serpentine coil arranged in the heat exchange shell, and the serpentine coils of the two heat exchangers are connected in series through water pipes, and the heat exchange shells are connected in series through water pipes; the second chamber of the circulating water tank is connected to a circulating pump through a water pipe, and the water outlet of the circulating pump is connected to the heat exchange shell inlet of one of the heat exchangers through a water pipe, and the heat exchange shell outlet of the other heat exchanger is connected to the end of the water inlet pipe away from the granulation hood; the cooling water tank is connected to the refrigerator through a water pipe, and the refrigerator is connected to the serpentine coil inlet of one of the heat exchangers through a water pipe, and the serpentine coil outlet of the other heat exchanger is connected to the cooling water tank.

[0019] By adopting the above technical solution, the cooling water tank, the refrigerator and the serpentine coils in series in the two heat exchangers form an internal circulation of cooling water, and the circulating water tank, the circulating pump, the heat exchange shells in series in the two heat exchangers, the water inlet pipe and the discharge pipe in the underwater granulation assembly form an external circulation of pelletizing water. The pelletizing water in the external circulation and the cooling water in the internal circulation are heat exchanged in the two heat exchangers in series, so as to achieve rapid cooling of the pelletizing water and improve the cooling effect of pelletizing. Among them, the circulating cooling mechanism is provided with two heat exchangers in series, which increases the heat exchange path of cooling water and pelletizing water and ensures the cooling effect of pelletizing water.

[0020] Furthermore, the screening mechanism includes a screening frame parallel to the granulation frame, a screening material trough arranged along the length direction of the screening frame is provided above the screening frame, vertically arranged screening springs are provided at the four corners of the bottom of the screening material trough and between the screening frame, and vibration motors are provided on both sides of the screening material trough; a screening material drum is provided at one end of the screening frame, and the screening material drum is connected with the discharge guide cover through a first air conveying component; a partition is provided at the end of the screening material trough away from the screening material drum, and the partition divides the screening material trough into a drying chamber and a discharge chamber; a drying mesh plate arranged along the length direction of the screening material trough is provided above the drying chamber, and a drying fan is connected to the end of the drying chamber close to the discharge chamber; a splash shield opening downward is provided at the end of the drying mesh plate away from the discharge chamber, and the discharge port at the bottom of the screening material drum passes through the splash shield and is located above the drying mesh plate; a screening mesh plate is provided above the discharge chamber, the upper surface of the screening mesh plate is not higher than the upper surface of the drying mesh plate, and the discharge chamber is connected to the second air conveying component.

[0021] By adopting the above technical solution, the first air conveying component conveys the rubber particles dehydrated by the dehydration mechanism into the screening barrel, and the rubber particles are discharged from the bottom of the screening barrel onto the drying screen. The vibration motor works and drives the screening trough to vibrate under the action of the vibration spring, thereby realizing the shaking dispersion of the rubber particles on the drying screen and the vibration screening and separation of the rubber particles on the screening screen. In this process, the drying fan blows air into the drying chamber to dry the rubber particles on the drying screen. The qualified rubber particles separated by the screening screen fall into the discharge chamber, are sent out by the second air conveying component, and are dried for the third time during the conveying process. Among them, the splash guard can prevent the rubber particles discharged from the bottom of the screening barrel from splashing everywhere, ensure the cleanliness of the surrounding production environment, and reduce the waste of rubber particles.

[0022] Furthermore, a discharge plate is provided on one side of the partition, which is located in the drying chamber and arranged along the width direction of the screening trough. The discharge plate is rotatably installed in the screening trough. The rotation axis of the discharge plate is arranged along its length direction and one end is connected to a crank. A discharge guide groove is provided below the discharge plate along its length direction, and one end of the discharge guide groove extends out of the screening trough.

[0023] By adopting the above technical solution, in the initial stage when the granulation mechanism is just started, the prepared rubber particles are unqualified, and the discharge plate is rotated to a vertical state by using a crank. When the unqualified rubber particles are transported to the discharge plate, they directly fall into the discharge guide groove. When the rubber particles transported here are qualified, the discharge plate is rotated to a horizontal state by using a crank, and the qualified rubber particles are transported to the top of the screening mesh plate through the discharge plate for screening. In this way, the unqualified rubber particles in the initial stage are separated, which, on the one hand, avoids the screening and mixing of unqualified rubber particles, which affects the overall quality of the rubber particles, and on the other hand, avoids the accumulation of a large number of unqualified rubber particles on the screening mesh plate, which is easy to block the screening mesh plate, affecting the screening effect and screening efficiency of the screening mesh plate on the rubber particles.

[0024] Furthermore, the first air delivery component includes a first negative pressure fan, which is connected to a first air delivery pipe connected to a discharge guide cover and a screening barrel; the second air delivery component includes a second negative pressure fan, which is connected to a second air delivery pipe, and the second air delivery pipe is connected to an air delivery hopper located directly below the discharge port of the discharge chamber.

[0025] By adopting the above technical scheme, when the first negative pressure fan is working, the dehydrated rubber material discharged from the discharge guide hood is sent into the screening barrel through the second air delivery pipe, and when the second negative pressure fan is working, the qualified rubber particles discharged from the discharge chamber into the air delivery hopper are sent out through the second air delivery pipe, so that the rubber particles can be air-dried while being transported, effectively improving the drying efficiency of the rubber particles and simplifying other drying structures of the rubber particles.

[0026] In summary, the utility model has the following beneficial effects:

[0027] 1. The utility model realizes continuous production of granulation, dehydration, cooling and screening by setting up continuous granulation mechanism, dehydration mechanism and screening mechanism. The granulation mechanism adopts underwater granulation to reduce the granulation odor, and the outer surface of the rubber particles is quickly cooled by the pelletizing water to ensure the granulation quality of the rubber material;

[0028] 2. In the utility model, a circulating cooling mechanism is arranged between the dehydration mechanism and the underwater granulation assembly to realize the recycling of the pelletizing water, and two heat exchangers are used in series during the circulation process to perform heat exchange cooling on the pelletizing water through the internal circulation of cooling water and the external circulation of pelletizing water, thereby ensuring the cooling effect of the pelletizing water and the cooling effect of the pelletizing water on the rubber particles in the underwater granulation assembly;

[0029] 3. The utility model not only realizes the transportation of rubber particles, but also realizes the drying of particles during the transportation process by setting the first air delivery component and the second air delivery component. The two-stage negative pressure air delivery cooperates with the drying screen, drying chamber and drying fan in the screening mechanism to dry the rubber particles, effectively improving the drying efficiency and drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the fluid rubber granulation cooling device;

[0031] Figure 2 It is a structural schematic diagram of a granulation mechanism in a fluid rubber granulation cooling device;

[0032] Figure 3 It is a structural schematic diagram of a dehydration mechanism and a circulating cooling mechanism in a fluid rubber granulation cooling device;

[0033] Figure 4 It is a structural schematic diagram of the screening mechanism in the fluid rubber granulation cooling device.

[0034] In the figure, 1, granulation mechanism; 11, granulation frame; 12, granulation cylinder; 13, feed hopper; 14, feeding screw; 15, feeding screw; 16, granulation seat; 2, underwater granulation assembly; 21, granulation plate; 22, granulation net; 23, spare net; 24, granulation cover; 25, discharge pipe; 26, water inlet pipe; 27, granulation bottom plate; 28, granulation motor; 29, granulation knife disc; 291, granulation cutter; 3, dehydration mechanism; 31, dehydration shell; 311, drain port; 32, centrifugal cylinder; 33, spiral guide vane; 34, feed channel; 35, feed guide cover; 36, discharge guide cover; 37, circulating water tank; 371, first chamber; 372, second chamber; 38, vertical filter screen; 39, horizontal filter screen; 4 , circulating cooling mechanism; 41, cooling water tank; 42, refrigerator; 43, heat exchanger; 431, heat exchange shell; 432, serpentine coil; 44, circulating pump; 5, first air delivery component; 51, first negative pressure fan; 52, first air delivery pipe; 6, screening mechanism; 61, screening rack; 62, screening trough; 621, screening spring; 622, vibration motor; 63, screening barrel; 631, splash guard; 64, partition; 65, drying chamber; 651, drying mesh plate; 652, drying fan; 66, discharge chamber; 661, screening mesh plate; 67, discharge plate; 671, crank; 68, discharge guide trough; 7, second air delivery component; 71, second negative pressure fan; 72, second air delivery pipe; 73, air delivery hopper. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] A fluid rubber granulation cooling device, such as Figure 1 As shown, it includes a granulation mechanism 1, a dehydration mechanism 3 and a screening mechanism 6 which are arranged in sequence. An underwater granulation component 2 is provided at the discharge end of the granulation mechanism 1. The underwater granulation component 2 is connected to the dehydration mechanism 3, and a circulating cooling mechanism 4 connecting the underwater granulation component 2 and the dehydration mechanism 3 is provided on one side of the dehydration mechanism 3. A first air delivery component 5 is provided between the dehydration mechanism 3 and the screening mechanism 6, and a second air delivery component 7 is provided at the discharge end of the screening mechanism 6. Among them, the utility model adopts automatic control technology such as PLC to control the automatic operation and linkage of each mechanism component. Automatic control is a prior art and will not be described in detail.

[0037] like Figure 1As shown, the rubber material after desulfurization filtration and the modified material after internal mixing are compounded and sent to the granulation mechanism 1, and the underwater granulation component 2 performs underwater granulation. The rubber particles formed by granulation are sent to the dehydration mechanism 3, and the dehydration mechanism 3 removes the pelletizing water in the rubber particles. The discharged pelletizing water is returned to the underwater granulation component 2 through the circulating cooling mechanism 4 for recycling. The dehydrated rubber particles are sent to the screening mechanism 6 by the first air conveying component 5 for screening, and the rubber particles are dried for the first time during the feeding process of the first air conveying component 5. After the screening mechanism 6 screens the rubber particles according to the particle size, the qualified rubber particles are sent out by the second air conveying component 7 and dried for the second time during the feeding process.

[0038] The specific structures of the granulation mechanism 1, the underwater granulation assembly 2, the dehydration mechanism 3, the circulating cooling mechanism 4, the screening mechanism 6, etc. are described in detail in turn below.

[0039] like Figure 1 and Figure 2 As shown, the granulation mechanism 1 includes a horizontally arranged granulation frame 11, on which a granulation barrel 12 is arranged along its length direction, and a feed hopper 13 connected to the granulation barrel 12 is arranged above one end thereof, and an underwater granulation assembly 2 is arranged at one end of the granulation barrel 12 away from the feed hopper 13. A feeding screw 14 arranged along its length direction is positioned and rotatably installed in the granulation barrel 12, and two feeding screws 15 with axes located on the same horizontal plane are arranged at the bottom of the feed hopper 13 near the connection between the feed hopper 13 and the granulation barrel 12, the two feeding screws 15 are parallel to the feeding screws 14 and located above the feeding screws 14, the axes of the feeding screws 14 are located on the symmetry plane of the two feeding screws 15, and the two feeding screws 15 rotate in opposite directions. After the granulated rubber material is fed into the feed hopper 13, the feeding screws 15 rotate in opposite directions to feed the mixed rubber material into the granulation barrel 12, and the feeding screws 14 transport the rubber material forward to be granulated underwater by the underwater granulation assembly 2.

[0040] In this embodiment, if Figure 1 and Figure 2 As shown, a granulation seat 16 is provided at one end of the granulation cylinder 12 away from the feed hopper 13, and the underwater granulation assembly 2 includes a granulation plate 21 installed on the granulation seat 16, and a granulation net 22 coaxial with the granulation cylinder 12 is detachably installed on the granulation plate 21, and the rubber material delivered by the feeding screw 14 is extruded from the granulation net 22. A granulation cover 24 sealed and connected to the granulation seat 16 is detachably installed outside the granulation seat 16, and the upper end of the granulation cover 24 is connected to the dehydration mechanism 3 through the discharge pipe 25, and the lower end of the granulation cover 24 is connected to the circulation cooling mechanism 4 through the water inlet pipe 26. A granulation bottom plate 27 is also provided on the granulation frame 11, and a granulation motor 28 is installed on the granulation bottom plate 27. The output shaft of the granulation motor 28 extends into the granulation cover 24 and is provided with a granulation knife disc 29 coaxial with the granulation cylinder 12, and a plurality of granulation cutters 291 arranged along its radial direction are arranged in a circumferential array on the granulation knife disc 29.

[0041] like Figure 1 and Figure 2 As shown, when the feeding screw 14 delivers the rubber, the rubber is squeezed out of the granulation net 22, the water inlet pipe 26 continuously inputs granulation water into the granulation cover 24, the granulation motor 28 drives the granulation knife disc 29 to rotate, and a number of granulation cutters 291 cut the rubber into rubber particles, and the formed rubber particles and the granulation water are sent to the dehydration mechanism 3 from the discharge pipe 25. In this way, the underwater granulation of the rubber is realized, and the size of the rubber particles is determined by the aperture of the granulation net 22 and the rotation speed of the granulation motor 28, which meets the granulation requirements of rubber particles of different sizes. According to the actual production requirements, the granulation net 22 with a suitable aperture can be installed. In this way, the underwater granulation method is used for granulation, which reduces the granulation smell, and the outer surface of the rubber particles is quickly cooled by the granulation water, ensuring the granulation quality and cooling efficiency of the rubber.

[0042] Among them, Figure 2 As shown, the granulation plate 21 is arranged along the width direction of the granulation frame 11 and is slidably installed on the granulation seat 16 along its length direction, and a spare net 23 located on one side of the granulation plate 21 can also be detachably installed on the granulation plate 21. By moving the granulation plate 21, the granulation net 22 and the spare net 23 are alternately used and standby to each other, which can not only avoid the granulation net 22 or the spare net 23 from being blocked for a long time and affect the granulation effect, but also ensure the continuity of the granulation work when cleaning the granulation net 22 or the spare net 23. In addition, the granulation net 22 and the spare net 23 of different apertures can be replaced according to the size of the required granulation rubber material to meet the granulation demand of various specifications of rubber particles and improve the scope of application. In the present embodiment, the sliding of the granulation plate 21 is driven by a cylinder.

[0043] In this embodiment, if Figure 1 and Figure 2 As shown, the granulation bottom plate 27 is slidably installed on the granulation frame 11 along the length direction of the granulation frame 11, and is driven by a screw motor and other structures. The granulation cover 24 is a split structure, one half is connected to the motor, and the other half is connected to the granulation seat 16. The two are sealed and locked so that the granulation cover 24 can be opened by moving the granulation bottom plate 27 to facilitate the replacement of the granulation cutter 291.

[0044] like Figure 1 and Figure 3As shown, the dehydration mechanism 3 includes a vertically arranged dehydration shell 31 and a centrifugal cylinder 32 vertically arranged in the dehydration shell 31. The centrifugal cylinder 32 is positioned and rotatably installed in the dehydration shell 31 and is connected to a motor for driving its rotation at its upper end. A plurality of spiral guide vanes 33 arranged in an array around its circumference and spirally upward are arranged on the outer wall of the centrifugal cylinder 32. A feed channel 34 is arranged vertically on the outer wall of the dehydration shell 31 and is connected to the bottom thereof. The upper end of the feed channel 34 is connected to an end of the discharge pipe 25 away from the granulation cover 24, and a feed guide cover 35 is arranged at the lower end, and one of the spiral guide vanes 33 located at the bottom is located in the outlet of the feed guide cover 35. A discharge guide cover 36 is arranged on the side of the dehydration shell 31 away from the feed channel 34, and one of the spiral guide vanes 33 located at the top is located at the inlet of the discharge guide cover 36, and the outlet of the discharge guide cover 36 is connected to the first air conveying component 5.

[0045] like Figure 1 and Figure 3 As shown, the granules prepared by the granulation mechanism 1 enter the feed channel 34 from the discharge pipe 25 along with the pelletizing water, and are sent out from the discharge guide cover 36. During the rotation of the centrifugal cylinder 32, the granules spiral upward along the spiral guide vanes 33, and the pelletizing water is thrown out under the action of centrifugal force. The dehydrated granules rise along the spiral guide vanes 33 to the discharge guide cover 36, and are sent out from the discharge guide cover 36 to the screening mechanism 6 by the first air delivery component 5. The dehydration of the granules is achieved by using the centrifugal force of the rotation of the centrifugal cylinder 32, and the spiral guide vanes 33 guide the rising and sending of the granules, effectively ensuring the dehydration effect of the granules.

[0046] In this embodiment, if Figure 1 and Figure 3 As shown, a circulating water tank 37 is provided below the dehydration shell 31, a drain port 311 is provided at the bottom of the dehydration shell 31, the drain port 311 is connected to the circulating water tank 37, and the water thrown out of the dehydration mechanism 3 is discharged into the circulating water tank 37 from the drain port. Among them, a vertical filter screen 38 is provided in the circulating water tank 37, and the vertical filter screen 38 divides the circulating water tank 37 into a first chamber 371 located directly below the dehydration shell 31 and a second chamber 372 located on one side of the dehydration shell 31. A horizontal filter screen 39 is provided in the first chamber 371 and is located directly below the drain port 311 and is horizontally provided. The second chamber 372 is connected to the end of the water inlet pipe 26 away from the granulation cover 24 through the circulating cooling mechanism 4. After the pelletizing water discharged from the dehydration mechanism 3 enters the circulating water tank 37 from the drain port 311, it is first filtered by the horizontal filter 39 and then enters the first chamber 371, and then filtered by the vertical filter 38 for the second time and then mixed with the pelletizing water in the second chamber 372. In this way, the recycled pelletizing water is filtered twice to ensure the cleanliness of the recycled pelletizing water.

[0047] like Figure 1 and Figure 3As shown, the circulating cooling mechanism 4 includes a cooling water tank 41, a refrigerator 42 and two heat exchangers 43 connected in series, each heat exchanger 43 includes a heat exchange shell 431 and a serpentine coil 432 arranged in the heat exchange shell 431, and the serpentine coils 432 of the two heat exchangers 43 are connected in series through a water pipe, and the heat exchange shells 431 are connected in series through a water pipe. The second chamber 372 of the circulating water tank 37 is connected to a circulating pump 44 through a water pipe, and the water outlet of the circulating pump 44 is connected to the inlet of the heat exchange shell 431 of one of the heat exchangers 43 through a water pipe, and the outlet of the heat exchange shell 431 of the other heat exchanger 43 is connected to the end of the water inlet pipe 26 away from the granulation cover 24, forming an external circulation path for pelletizing water. The cooling water tank 41 is connected to the refrigerator 42 through a water pipe, and the refrigerator 42 is connected to the inlet of the serpentine coil 432 of one heat exchanger 43 through a water pipe, and the outlet of the serpentine coil 432 of the other heat exchanger 43 is connected to the cooling water tank 41, forming an internal circulation path of the cooling water. The pelletizing water in the external circulation and the cooling water in the internal circulation are heat exchanged in the two heat exchangers 43, so that the pelletizing water is quickly cooled down and the granulation cooling effect is improved.

[0048] In this embodiment, if Figure 1 and Figure 4 As shown, the screening mechanism 6 includes a screening frame 61 parallel to the granulation frame 11, a screening material trough 62 is arranged above the screening frame 61 along its length direction, and vertically arranged screening springs 621 are arranged between the four corners of the bottom of the screening material trough 62 and the screening frame 61, and vibration motors 622 are arranged on both sides of the screening material trough 62. A screening barrel 63 is arranged at one end of the screening frame 61, and the screening barrel 63 is connected to the discharge guide cover 36 through the first air conveying component 5. The first air conveying component 5 conveys the rubber particles dehydrated by the dehydration mechanism 3 into the screening barrel 63, and the rubber particles are discharged from the bottom of the screening barrel 63 to the screening material trough 62. The vibration motor 622 works and drives the screening material trough 62 to vibrate under the action of the vibration spring.

[0049] Specifically, Figure 1 and Figure 4As shown, a partition 64 is provided at one end of the screening trough 62 away from the screening barrel 63, and the partition 64 divides the screening trough 62 into a drying chamber 65 and a discharge chamber 66. A drying mesh plate 651 is provided above the drying chamber 65 and arranged along the length direction of the screening trough 62, and a drying fan 652 is connected to one end of the drying chamber 65 close to the discharge chamber 66. A screening mesh plate 661 is provided above the discharge chamber 66, and the upper surface of the screening mesh plate 661 is not higher than the upper surface of the drying mesh plate 651, and the aperture of the screening mesh plate 661 is larger than the aperture of the drying mesh plate 651, and the discharge chamber 66 is connected to the second air delivery component 7. The rubber material discharged from the screening barrel 63 falls onto the drying mesh 651. During the vibration of the screening trough 62, the rubber particles are spread out and transported forward to the screening mesh 661. The screening mesh 661 screens the rubber particles, and qualified rubber particles fall into the discharge chamber 66 and are transported by the second air delivery component 7. During the screening process, the drying fan 652 blows air into the drying chamber 65 to dry the rubber particles on the drying mesh 651.

[0050] Among them, Figure 4 As shown, a splash shield 631 with a downward opening is provided at one end of the drying mesh plate 651 away from the discharge chamber 66, and the discharge port at the bottom of the screening drum 63 passes through the splash shield 631 and is located above the drying mesh plate 651. The splash shield 631 is utilized to prevent the rubber particles discharged from the bottom of the screening drum 63 from splashing everywhere, thereby ensuring the cleanliness of the surrounding production environment and reducing the waste of rubber particles.

[0051] In addition, if Figure 4 As shown, a discharge plate 67 is provided on one side of the partition plate 64 and is located in the drying chamber 65 and is arranged along the width direction of the screening trough 62. The discharge plate 67 is rotatably installed in the screening trough 62. The rotation axis of the discharge plate 67 is arranged along its length direction and one end is connected to a crank 671. A discharge guide groove 68 is arranged along its length direction below the discharge plate 67, and one end of the discharge guide groove 68 extends out of the screening trough 62. In the initial stage of the granulation mechanism 1 just starting up, the prepared rubber particles are unqualified. The discharge plate 67 is rotated to a vertical state by using the crank 671. When the unqualified rubber particles are transported to the discharge plate 67, they directly fall into the discharge guide groove 68. When the rubber particles transported there are qualified, the discharge plate 67 is rotated to a horizontal state by using the crank 671. The qualified rubber particles are transported to the top of the screening mesh plate 661 through the discharge plate 67 for screening, thereby achieving the separation of the unqualified rubber particles in the initial stage.

[0052] In this embodiment, if Figure 1 and Figure 3 As shown, the first air delivery assembly 5 includes a first negative pressure fan 51, and the first negative pressure fan 51 is connected to a first air delivery pipe 52 connecting the discharge guide cover 36 and the screening barrel 63. When the first negative pressure fan 51 is working, the dehydrated rubber material discharged from the discharge guide cover 36 is delivered to the screening barrel 63 through the second air delivery pipe 72. Figure 1 and Figure 4As shown, the second air delivery component 7 includes a second negative pressure fan 71, the second negative pressure fan 71 is connected to a second air delivery pipe 72, and the second air delivery pipe 72 is connected to an air delivery hopper 73 located directly below the discharge port of the discharge chamber 66. When the second negative pressure fan 71 is working, the qualified rubber particles discharged from the discharge chamber 66 into the air delivery hopper 73 are delivered through the second air delivery pipe 72. The first air delivery component 5 and the second air delivery component 7 are used to not only realize the transportation of the rubber particles, but also realize the drying of the particles during the transportation process. The two-stage negative pressure air delivery cooperates with the drying of the rubber particles in the screening mechanism 6, which effectively improves the drying efficiency and drying effect.

[0053] Working principle and usage of the utility model:

[0054] The rubber material after desulfurization filtration and the modified material after internal mixing are compounded and fed into the feed hopper 13, fed into the granulation cylinder 12 by the feeding screw 15, and transported forward by the feeding screw 14. The rubber material is squeezed out from the granulation net 22, and the water inlet pipe 26 continuously inputs the pelletizing water into the granulation cover 24. The granulation motor 28 drives the pelletizing knife disc 29 to rotate, and a plurality of pelletizing cutters 291 cut the rubber material into rubber material particles. The formed rubber material particles and the pelletizing water are sent to the dehydration mechanism 3 from the discharge pipe 25. The rubber particles are sent out from the feed channel 34 and the discharge guide cover 36. During the rotation of the centrifugal cylinder 32, the rubber particles spiral upward along the spiral guide vane 33. The pelletizing water is thrown out under the action of centrifugal force. The pelletizing water is discharged into the circulating water tank 37. The dehydrated rubber particles rise along the spiral guide vane 33 to the discharge guide cover 36, and are sent from the discharge guide cover 36 to the screening mechanism 6 by the first air conveying component 5. The rubber particles are dried for the first time during the feeding process of the first air conveying component 5.

[0055] Among them, the cooling water is internally circulated in the cooling water tank 41, the refrigerator 42 and the serpentine coil 432 connected in series in the two heat exchangers 43, and the pelletizing water is externally circulated in the circulating water tank 37, the heat exchange shell 431 connected in series in the two heat exchangers 43, the water inlet pipe 26 and the discharge pipe 25 in the underwater pelletizing component 2. The pelletizing water and the cooling water are heat exchanged in the two heat exchangers 43 to achieve rapid cooling of the pelletizing water and improve the pelletizing cooling effect.

[0056] The rubber particles sent out by the first air delivery component 5 are transported to the screening barrel 63, and the rubber particles are discharged from the bottom of the screening barrel 63 onto the drying mesh plate 651. The vibration motor 622 drives the screening trough 62 to vibrate, so as to realize the rubber material transportation, the shaking dispersion of the rubber particles on the drying mesh plate 651, and the vibration screening and separation of the rubber particles on the screening mesh plate 661. In this process, the drying fan 652 blows air into the drying chamber 65 to dry the rubber particles on the drying mesh plate 651. The qualified rubber particles separated by the screening mesh plate 661 fall into the discharge chamber 66, and are sent out by the second air delivery component 7 and dried for the third time during the transportation process.

[0057] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A fluid rubber granulation cooling device, characterized in that: The invention comprises a granulation mechanism (1), a dehydration mechanism (3) and a screening mechanism (6) which are arranged in sequence, a first air delivery component (5) being arranged between the dehydration mechanism (3) and the screening mechanism (6), and a second air delivery component (7) being arranged at the discharge end of the screening mechanism (6); the granulation mechanism (1) comprises a horizontally arranged granulation frame (11), a granulation cylinder (12) being arranged on the granulation frame (11) along its length direction, a feed hopper (13) being arranged above one end of the granulation cylinder (12) and being connected to the granulation cylinder (12), and an underwater granulation component (2) being connected to the other end, and a circulating cooling mechanism (4) being arranged between the underwater granulation component (2) and the dehydration mechanism (3); A feeding screw (14) arranged along the length direction is positioned and rotatably installed in the granulating cylinder (12), and two feeding screws (15) whose axes are located on the same horizontal plane are arranged at the bottom of the feeding hopper (13) near the connection between the feeding hopper and the granulating cylinder (12), and the two feeding screws (15) are parallel to the feeding screw (14) and are located above the feeding screw (14), and the axes of the feeding screws (14) are located on the symmetry plane of the two feeding screws (15); The underwater granulation assembly (2) comprises a granulation net (22) arranged at the discharge end of the granulation cylinder (12) and coaxial therewith, the granulation net (22) is provided with a granulation cover (24) on the outside, the upper end of the granulation cover (24) is connected to the dehydration mechanism (3) through a discharge pipe (25), and the lower end of the granulation cover (24) is connected to the circulation cooling mechanism (4) through a water inlet pipe (26); The granulation frame (11) is also provided with a granulation bottom plate (27) which slides along the length direction of the granulation cylinder (12); a granulation motor (28) is installed on the granulation bottom plate (27); the output shaft of the granulation motor (28) extends into the granulation cover (24) and is provided with a granulation knife disc (29) which is coaxial with the granulation cylinder (12); a plurality of granulation cutters (291) are arranged in a circumferential array along the granulation knife disc (29) and are arranged along its radial direction.

2. The fluid rubber granulation cooling device according to claim 1 is characterized in that: A granulation seat (16) is provided at one end of the granulation cylinder (12) away from the feed hopper (13); a granulation plate (21) is provided on the granulation seat (16) and slides along the width direction of the granulation frame (11); the granulation net (22) is detachably mounted on the granulation plate (21); and a spare net (23) located on one side of the granulation plate (21) is also detachably mounted on the granulation plate (21).

3. The fluid rubber granulation cooling device according to claim 1 is characterized in that: The dehydration mechanism (3) comprises a vertically arranged dehydration shell (31) and a centrifugal drum (32) vertically arranged in the dehydration shell (31); the centrifugal drum (32) is positioned and rotatably installed in the dehydration shell (31), and a plurality of spiral guide vanes (33) arranged in an array around its circumference and spirally upward are provided on its outer wall; a feed channel (34) is vertically arranged on the outer wall of the dehydration shell (31) and is connected to the feed channel (34) at the bottom; the upper end of the feed channel (34) is connected to an end of the discharge pipe (25) away from the granulation cover (24), and a feed guide cover (35) is provided at the lower end, and one of the spiral guide vanes (33) located at the bottom is located at the feed guide cover (3 5); a discharge guide cover (36) is provided on one side of the dehydration housing (31) away from the feed channel (34); one of the spiral guide vanes (33) located at the top is located at the inlet of the discharge guide cover (36); the outlet of the discharge guide cover (36) is connected to the first air delivery component (5); a circulating water tank (37) is provided below the dehydration housing (31); a drain port (311) is provided at the bottom of the dehydration housing (31); the drain port (311) is connected to the circulating water tank (37), and the circulating water tank (37) is connected to one end of the water inlet pipe (26) away from the granulation cover (24) through a circulating cooling mechanism (4).

4. The fluid rubber granulation cooling device according to claim 3 is characterized in that: A vertical filter screen (38) is provided in the circulating water tank (37), and the vertical filter screen (38) divides the circulating water tank (37) into a first chamber (371) located directly below the dehydration shell (31) and a second chamber (372) located on one side of the dehydration shell (31). A horizontal filter screen (39) is provided in the first chamber (371) and is located directly below the drain outlet (311) and is horizontally provided. The second chamber (372) is connected to the circulating cooling mechanism (4).

5. The fluid rubber granulation cooling device according to claim 4 is characterized in that: The circulating cooling mechanism (4) comprises a cooling water tank (41) arranged on one side of the circulating water tank (37), a refrigerator (42) and two heat exchangers (43) connected in series, each of the heat exchangers (43) comprising a heat exchange shell (431) and a serpentine coil (432) arranged in the heat exchange shell (431), and the serpentine coils (432) of the two heat exchangers (43) are connected in series via a water pipe, and the heat exchange shells (431) are connected in series via a water pipe; the second chamber (372) of the circulating water tank (37) is connected to a circulating pump (44) via a water pipe, The water outlet of the circulation pump (44) is connected to the inlet of the heat exchange shell (431) of one of the heat exchangers (43) through a water pipe, and the outlet of the heat exchange shell (431) of the other heat exchanger (43) is connected to the end of the water inlet pipe (26) away from the granulation cover (24); the cooling water tank (41) is connected to the refrigerator (42) through a water pipe, and the refrigerator (42) is connected to the inlet of the serpentine coil (432) of one of the heat exchangers (43) through a water pipe, and the outlet of the serpentine coil (432) of the other heat exchanger (43) is connected to the cooling water tank (41).

6. The fluid rubber granulation cooling device according to claim 3 is characterized in that: The screening mechanism (6) comprises a screening frame (61) parallel to the granulation frame (11); a screening trough (62) is arranged above the screening frame (61) along its length direction; vertically arranged screening springs (621) are arranged between the four corners of the bottom of the screening trough (62) and the screening frame (61); and vibration motors (622) are arranged on both sides of the screening trough (62); a screening barrel (63) is arranged at one end of the screening frame (61); the screening barrel (63) is connected to the discharge guide cover (36) through the first air conveying component (5); a partition (64) is arranged at one end of the screening trough (62) away from the screening barrel (63); the partition (64) divides the screening trough (62) into a drying chamber (63) and a drying chamber (64). 5) and a discharge chamber (66); a drying mesh plate (651) is provided above the drying chamber (65) along the length direction of the screening trough (62), and one end of the drying chamber (65) close to the discharge chamber (66) is connected to a drying fan (652); a splash shield (631) with a downward opening is provided at one end of the drying mesh plate (651) away from the discharge chamber (66), and a discharge port at the bottom of the screening barrel (63) passes through the splash shield (631) and is located above the drying mesh plate (651); a screening mesh plate (661) is provided above the discharge chamber (66), the upper surface of the screening mesh plate (661) is not higher than the upper surface of the drying mesh plate (651), and the discharge chamber (66) is connected to a second air delivery component (7).

7. The fluid rubber granulation cooling device according to claim 6 is characterized in that: A discharge plate (67) is provided on one side of the partition plate (64) and is located in the drying chamber (65) and is arranged along the width direction of the screening trough (62). The discharge plate (67) is rotatably installed in the screening trough (62). The rotation axis of the discharge plate (67) is arranged along the length direction thereof and one end of the discharge plate (67) is connected to a crank (671). A discharge guide groove (68) is provided below the discharge plate (67) and is arranged along the length direction thereof. One end of the discharge guide groove (68) extends out of the screening trough (62).

8. The fluid rubber granulation cooling device according to claim 6, characterized in that: The first air delivery component (5) comprises a first negative pressure fan (51), and the first negative pressure fan (51) is connected to a first air delivery pipe (52) connected to a discharge guide cover (36) and a screening barrel (63); the second air delivery component (7) comprises a second negative pressure fan (71), and the second negative pressure fan (71) is connected to a second air delivery pipe (72), and the second air delivery pipe (72) is connected to an air delivery hopper (73) located directly below the discharge port of the discharge chamber (66).

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