Drying device for color master batch preparation

Abstract

The utility model discloses a drying device for preparing color master batches, which comprises a shell, a drying component is arranged in the shell, and an exhaust mechanism is arranged on the top side of the shell; the drying assembly comprises a conveying belt, the conveying belt is arranged in a net belt shape and arranged in the shell, and the front side wall and the rear side wall of the conveying belt make contact with the inner wall of the shell. When the improved drying device for preparing the color master batches is used, the color master batches are intermittently blown through hot airflow and normal-temperature airflow to complete drying treatment of the color master batches, and the temperature difference between the bottom color master batches and the top color master batches is adjusted through passing of the normal-temperature airflow in gaps of the color master batches; therefore, the color master batches on the conveying belt are intermittently blown by the hot air flow and the normal-temperature air flow, the temperature difference of the color master batches on the conveying belt is not too large, and the situation that the temperature of the color master batches at the bottom is too high and influences the quality of the color master batches is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of masterbatch drying devices, in particular to a drying device for masterbatch preparation. Background Art

[0002] Masterbatch is a kind of plastic colorant, which is widely used in the plastic processing industry. It is made into granular products by mixing pigments or dyes with carrier resins, dispersants and other additives through special processes, so as to achieve uniform coloring during the production process of plastic products.

[0003] In the existing masterbatch drying device, generally, hot air continuously blows and heats the masterbatch, so that the moisture on the masterbatch evaporates to complete the drying treatment of the masterbatch. However, due to the heat conduction between the external masterbatch and the hot air flow, there is often a certain temperature difference between the masterbatch that first comes into contact with the hot air flow and the masterbatch that subsequently comes into contact with the hot air flow, which may cause the temperature of some masterbatch to be too high and affect the quality of the masterbatch. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a drying device for masterbatch preparation, so as to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A drying device for masterbatch preparation, including a housing, a drying component is arranged inside the housing, and an exhaust mechanism is arranged on the top side of the housing;

[0006] The drying component includes a conveyor belt, the conveyor belt is arranged in a net belt shape, the conveyor belt is arranged inside the housing, and the front and rear side walls of the conveyor belt are in contact with the inner wall of the housing. A driving mechanism is arranged on the conveyor belt, several storage boxes are arranged inside the conveyor belt, and the distance between adjacent two storage boxes is equal. The top side of the storage box is in contact with the inner top wall of the conveyor belt. A hot gas shunt pipe is arranged at the rear side of the housing, and several exhaust ends of the hot gas shunt pipe are fixedly penetrated through the shell wall of the housing and the box wall of the corresponding storage box. A gas shunt pipe is arranged on the front inner side of the housing, and several exhaust ends of the gas shunt pipe are fixedly penetrated through the shell wall of the housing and the box wall of the corresponding storage box. The several exhaust ends of the hot gas shunt pipe and the several exhaust ends of the gas shunt pipe are arranged at intervals. A gas heating device is arranged below the hot gas shunt pipe, and the intake end of the hot gas shunt pipe is communicated and installed with the exhaust end of the gas heating device through a connecting pipe.

[0007] Preferably, a blower is arranged on the front side of the gas shunt pipe, and the exhaust end of the blower is communicated and installed with the intake end of the gas shunt pipe. A filter plate is fixedly installed in the intake port of the blower through bolts.

[0008] Preferably, the driving mechanism includes two driving rollers, the two driving rollers are relatively arranged on the left and right sides of a plurality of storage boxes, and the outer peripheral walls of each driving roller are in interference fit with the inner wall of the conveyor belt. Both ends of the driving roller rotatably penetrate through the wall of the housing, and a driver is fixedly installed on the front side of the housing, and the output end of the driver is fixedly connected to the input end of the corresponding driving roller.

[0009] Preferably, the exhaust mechanism includes an air inlet pipe, the air inlet pipe is fixedly installed through the middle position of the top side of the housing, an air pump is fixedly installed at the position corresponding to the air inlet pipe on the top side of the housing, and the air inlet end of the air pump fixedly penetrates through the pipe wall of the air inlet pipe. The air inlet of the air inlet pipe is provided with a flared shape, and the exhaust end of the air pump is communicated with an exhaust pipe.

[0010] Preferably, a baffle is fixedly installed in the feed inlet of the housing, and the bottom side of the baffle is in contact with the corresponding outer arc wall of the conveyor belt. A cushion block is fixedly installed in the discharge outlet of the housing, and the bottom side of the cushion block is in contact with the corresponding outer arc wall of the conveyor belt. The top side of the cushion block is coplanar with the top side of the conveyor belt.

[0011] Preferably, a sealing plate is provided at the discharge end of the housing, and the sealing plate is in contact with the outer wall of the housing. The top end of the sealing plate is rotatably connected to the housing through a connecting block.

[0012] The utility model has the following beneficial effects:

[0013] When the improved drying device for masterbatch is in use, the masterbatch is intermittently blown by hot air flow and normal temperature air flow to complete the drying process of the masterbatch. By the normal temperature air flow passing through the gaps between the masterbatch particles, the temperature difference between the bottom masterbatch particles and the top masterbatch particles is adjusted. Thus, the masterbatch particles on the conveyor belt are intermittently blown by the hot air flow and the normal temperature air flow, so that the temperature difference of the masterbatch particles on the conveyor belt is not too large, and the quality of the masterbatch is prevented from being affected by the too high temperature of the bottom masterbatch particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the whole of the present invention;

[0016] Figure 2 It is of the present invention Figure 1 A schematic diagram of the structure of the reverse side;

[0017] Figure 3Schematic diagram of the internal structure of the housing of the present utility model;

[0018] Figure 4 Schematic diagram of the overall structure of the storage box of the present utility model;

[0019] Figure 5 Schematic diagram of the overall structure of the gas shunt pipe and the fan of the present utility model;

[0020] Figure 6 Right view of the internal structure of the housing of the present utility model.

[0021] In the figure: 1. Housing; 2. Drying assembly; 21. Conveyor belt; 22. Driving mechanism; 221. Driving roller; 222. Driver; 23. Storage box; 24. Hot air shunt pipe; 25. Gas shunt pipe; 26. Gas heating device; 27. Fan; 28. Filter plate; 3. Exhaust mechanism; 31. Intake pipe; 32. Air pump; 33. Exhaust pipe; 34. Sealing plate; 4. Stopper; 5. Cushion block. Detailed implementation manners

[0022] In order to make the technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] The present utility model provides a technical solution: Refer to Figure 1 - Figure 6 , a drying device for preparing masterbatch disclosed by the present utility model includes a housing 1, a drying assembly 2 is arranged inside the housing 1, and an exhaust mechanism 3 is arranged on the top side of the housing 1;

[0024] The drying assembly 2 includes a conveyor belt 21, the conveyor belt 21 is arranged in a net belt shape, the conveyor belt 21 is arranged inside the housing 1, and the front and rear side walls of the conveyor belt 21 are in contact with the inner wall of the housing 1. A driving mechanism 22 is arranged on the conveyor belt 21. A plurality of storage boxes 23 are arranged inside the conveyor belt 21, and the distance between adjacent two storage boxes 23 is equal. The top side of the storage box 23 is in contact with the inner top wall of the conveyor belt 21. A hot air shunt pipe 24 is arranged at the rear side of the housing 1, and a plurality of exhaust ends of the hot air shunt pipe 24 are fixedly penetrated through the shell wall of the housing 1 and the box wall of the corresponding storage box 23. A gas shunt pipe 25 is arranged on the front inner side of the housing 1, and a plurality of exhaust ends of the gas shunt pipe 25 are fixedly penetrated through the shell wall of the housing 1 and the box wall of the corresponding storage box 23. The plurality of exhaust ends of the hot air shunt pipe 24 and the plurality of exhaust ends of the gas shunt pipe 25 are arranged at intervals. A gas heating device 26 is arranged below the hot air shunt pipe 24, and the intake end of the hot air shunt pipe 24 is communicated and installed with the exhaust end of the gas heating device 26 through a connecting pipe.

[0025] In this embodiment, when the improved drying device for masterbatch preparation is in use, first, the operator drives the conveyor belt 21 to slowly rotate inside the housing 1 through the driving mechanism 22. Then, the exhaust mechanism 3 continuously extracts the gas at the top inside the housing 1 and diverts the gas to a specific position for discharge, avoiding the harmful gas generated during the heating process of the incoming masterbatch from being emitted into the surrounding environment of the device and affecting the surrounding environment;

[0026] At the same time, the gas heating device 26 is started to suck the external gas, and the heated gas is respectively injected into the corresponding storage tank 23 through the hot gas shunt pipe 24, so that a high-pressure chamber is continuously formed in the corresponding storage tank 23. The external normal-temperature gas flows into another storage tank 23 through the gas shunt pipe 25, and the startup of the device is completed;

[0027] According to the above-mentioned pressure difference between the top inside the housing 1 and the top opening of the storage tank 23, the gas in the storage tank 23 flows from bottom to top through the holes on the conveyor belt 21 to supplement the part of the gas lost at the top inside the housing 1;

[0028] After the above device is started up, the operator evenly pours the masterbatch into the housing 1 from the feeding end of the housing 1, so that a relatively uniform layer of masterbatch is laid on the conveyor belt 21. As the conveyor belt 21 rotates, the masterbatch on the conveyor belt 21 sequentially passes above several storage tanks 23. When the masterbatch moves to the position of the hot air flow, the hot air flow passes through the gaps between the masterbatch particles to heat the masterbatch. When the masterbatch moves to the position of the normal-temperature air flow, the normal-temperature air flow passes through the gaps between the masterbatch particles to adjust the temperature of the masterbatch. First, the normal-temperature air flow blows on the masterbatch particles with a higher temperature at the bottom to cool down the masterbatch particles with a higher temperature at the bottom, and at the same time makes the normal-temperature air flow become a hot air flow with a higher temperature. Subsequently, the heated air flow contacts the masterbatch particles with a lower temperature at the top. Since the temperature difference between the air flow and the masterbatch particles is small, it hardly reduces the temperature of the masterbatch particles at the top. Finally, the masterbatch particles on the conveyor belt 21 are intermittently blown by the hot air flow and the normal-temperature air flow, so that the temperature difference of the masterbatch particles on the conveyor belt 21 is not too large, and the drying treatment of the masterbatch is completed.

[0029] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 5 shown, a fan 27 is provided on the front side of the gas shunt pipe 25, and the exhaust end of the fan 27 is connected and installed with the intake end of the gas shunt pipe 25. A filter plate 28 is fixedly installed in the air inlet of the fan 27 through bolts;

[0030] In this embodiment, when the above-mentioned starting device is activated, the fan 27 starts synchronously. The started fan 27 continuously sucks the ambient normal-temperature gas into the gas shunt pipe 25, and the gas shunt pipe 25 injects the normal-temperature gas into the corresponding storage tank 23 respectively, so that a high-pressure chamber is continuously formed in the corresponding storage tank 23, creating a pressure difference on both sides of the masterbatch, thereby enabling the hot gas or normal-temperature gas in the storage tank 23 to pass through the gaps between the masterbatches more quickly, and making it easier for the normal-temperature air flow to carry out the water vapor between the gaps of the masterbatches;

[0031] The setting of the filter plate 28 can block the dust and impurities in the outside air outside the shunt pipe, preventing a large amount of dust in the outside air from adhering to the masterbatch along with the air flow.

[0032] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 3 shown, the driving mechanism 22 includes two driving rollers 221, which are relatively arranged on the left and right sides of a plurality of storage tanks 23. The outer peripheral wall of each driving roller 221 is in interference fit with the inner wall of the conveyor belt 21. Both ends of the driving roller 221 rotate through the shell wall of the housing 1. A driver 222 is fixedly installed on the front side of the housing 1, and the output end of the driver 222 is fixedly connected to the input end of the corresponding driving roller 221;

[0033] In this embodiment, when the above-mentioned driving device is activated, first start the driver 222. The driver 222 drives the driving roller 221 to rotate slowly. Due to the friction between the driving roller 221 and the inner wall of the conveyor belt 21, the rotating driving roller 221 synchronously drives the conveyor belt 21 to rotate slowly inside the housing 1. Due to the restraint and limitation of the driving roller 221 on the conveyor belt 21, the conveyor belt 21 rotates along a fixed track.

[0034] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 6 shown, the exhaust mechanism 3 includes an air inlet pipe 31, which is fixedly installed through the middle position on the top side of the housing 1. A gas pump 32 is fixedly installed at the position corresponding to the air inlet pipe 31 on the top side of the housing 1, and the air inlet end of the gas pump 32 is fixedly installed through the pipe wall of the air inlet pipe 31. The air inlet of the air inlet pipe 31 is arranged in a flared shape. The exhaust end of the gas pump 32 is connected and installed with an exhaust pipe 33;

[0035] In this embodiment, when the above-mentioned starting device is started, the air pump 32 is started simultaneously. The started air pump 32 continuously extracts the gas in the intake pipe 31, and the exhaust pipe guides the gas to a specific position for discharge, avoiding the harmful gas generated during the heating process of the masterbatch from being emitted into the surrounding environment of the device and affecting the surrounding environment. Moreover, since the amount of gas inhaled from the intake port of the intake pipe 31 into the housing 1 is limited, a negative pressure chamber is continuously formed in the intake pipe 31, so that the gas at the top of the housing 1 continuously flows into the intake pipe 31 from the intake port of the intake pipe 31 to supplement the gas lost in the intake pipe 31.

[0036] In a further preferred embodiment of the present utility model, as Figure 3 shown, a stopper 4 is fixedly installed in the feed port of the housing 1, and the bottom side of the stopper 4 is in contact with the corresponding outer arc wall of the conveyor belt 21. A cushion block 5 is fixedly installed in the discharge port of the housing 1, and the bottom side of the cushion block 5 is in contact with the corresponding outer arc wall of the conveyor belt 21. The top side of the cushion block 5 is coplanar with the top side of the conveyor belt 21;

[0037] In this embodiment, the arrangement of the stopper 4 and the cushion block 5 enables the masterbatch not to get stuck in the gap between the conveyor belt 21 and the inner wall of the housing 1 when the masterbatch is poured into the feed port of the housing 1 and when the conveyor belt 21 pushes the masterbatch out of the housing 1.

[0038] In a further preferred embodiment of the present utility model, as Figure 1 shown, a sealing plate 34 is provided at the discharge end of the housing 1, and the sealing plate 34 is in contact with the outer wall of the housing 1. The top end of the sealing plate 34 is rotatably connected to the housing 1 through a connecting block;

[0039] In this embodiment, during the process of gas loss at the top of the housing 1, a large amount of external gas does not flow into the housing 1 from the discharge port of the housing 1, so as to reduce the amount of external gas flowing into the housing 1 from the discharge port of the housing 1. Moreover, when the conveyor belt 21 pushes the masterbatch to the position of the sealing plate 34, due to the mutual contact between the masterbatch and the sealing plate 34, the sealing plate 34 rotates to automatically release the closed state of the discharge end of the housing 1, and the dried masterbatch is discharged from the discharge end of the housing 1 without other operations by the operator.

[0040] Working principle: When the improved drying device for masterbatch preparation is in use, first, the operator drives the driver 222, and the driver 222 drives the driving roller 221 to rotate slowly. Due to the friction between the driving roller 221 and the inner wall of the conveyor belt 21, the rotating driving roller 221 synchronously drives the conveyor belt 21 to rotate slowly inside the housing 1. At the same time, the gas heating device 26, the fan 27, and the air pump 32 are started simultaneously;

[0041] The started air pump 32 continuously extracts the gas in the intake pipe 31, and the exhaust pipe diverts the gas to a specific position for discharge. Since the amount of gas inhaled at the air inlet of the intake pipe 31 into the housing 1 is limited, a negative pressure cavity is continuously formed in the intake pipe 31, so that the gas at the top of the housing 1 continuously flows into the intake pipe 31 through the air inlet of the intake pipe 31 to supplement the gas lost in the intake pipe 31;

[0042] The started gas heating device 26 sucks in the external gas and injects the heated gas into the corresponding storage tank 23 through the hot gas shunt pipe 24 respectively, so that a high-pressure cavity is continuously formed in the corresponding storage tank 23;

[0043] The started fan 27 continuously sucks the external normal-temperature gas into the gas shunt pipe 25, and the gas shunt pipe 25 injects the normal-temperature gas into the corresponding storage tank 23 respectively, so that a high-pressure cavity is continuously formed in the corresponding storage tank 23;

[0044] According to the above-mentioned pressure difference between the top of the housing 1 and the top opening of the storage tank 23, the gas in the storage tank 23 flows from bottom to top through the holes on the conveyor belt 21 to supplement some of the gas lost at the top of the housing 1, and some of the external gas will also flow into the top of the housing 1 through the air inlet of the housing 1 to supplement the other part of the gas lost at the top of the housing 1, and the startup of the device is completed;

[0045] After the above-mentioned device is started, the operator evenly pours the masterbatch into the housing 1 from the feeding end of the housing 1, so that the masterbatch is laid more evenly on the conveyor belt 21. As the conveyor belt 21 rotates, the masterbatch on the conveyor belt 21 passes above several storage tanks 23 in turn. When the masterbatch moves to the position of the hot air flow, the hot air flow passes through the gaps between the masterbatch to heat the masterbatch. When the masterbatch moves to the position of the normal-temperature air flow, the normal-temperature air flow passes through the gaps between the masterbatch to adjust the temperature of the masterbatch. First, the normal-temperature air flow blows on the masterbatch with a higher temperature at the bottom to cool the masterbatch with a higher temperature at the bottom, and at the same time makes the normal-temperature air flow become a hot air flow with a higher temperature. Then the heated air flow contacts the masterbatch with a lower temperature at the top. Since the temperature difference between the air flow and the masterbatch is small, it hardly reduces the temperature of the masterbatch at the top. Finally, the masterbatch on the conveyor belt 21 is intermittently blown by the hot air flow and the normal-temperature air flow, so that the temperature difference of the masterbatch on the conveyor belt 21 is not too large, and the drying treatment of the masterbatch is completed;

[0046] When the conveyor belt 21 pushes the masterbatch to the position of the closing plate 34, due to the mutual contact between the masterbatch and the closing plate 34, the closing plate 34 rotates to automatically release the closed state of the discharge end of the housing 1, and the dried masterbatch is discharged from the discharge end of the housing 1;

[0047] It should be noted that due to the filling of the masterbatch at the inlet and outlet of the outer shell 1, the amount of external gas flowing into the top inside the outer shell 1 from the inlet and outlet of the outer shell 1 can be reduced, so that the gas can more easily pass through the gaps between the masterbatches.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for preparing masterbatch, comprising a housing (1), characterized in that: A drying assembly (2) is provided in the shell (1), and an exhaust mechanism (3) is provided on the top side of the shell (1); The drying component (2) comprises a conveyor belt (21), the conveyor belt (21) is arranged in a mesh belt shape, the conveyor belt (21) is arranged in the outer shell (1), and the front and rear side walls of the conveyor belt (21) are in contact with the inner wall of the outer shell (1), the conveyor belt (21) is provided with a driving mechanism (22), a plurality of storage boxes (23) are arranged in the conveyor belt (21), and the spacing between two adjacent storage boxes (23) is equal, the top side of the storage box (23) is in contact with the inner top wall of the conveyor belt (21), and the rear side of the outer shell (1) is provided with a hot air diversion pipe (24), and the hot air diversion pipe (24) ) are fixedly passed through the shell wall of the outer shell (1) and the box wall of the corresponding storage box (23); a gas diversion pipe (25) is provided on the front inner side of the outer shell (1), and the several exhaust ends of the gas diversion pipe (25) are fixedly passed through the shell wall of the outer shell (1) and the box wall of the corresponding storage box (23); the several exhaust ends of the hot gas diversion pipe (24) and the several exhaust ends of the gas diversion pipe (25) are arranged at intervals; a gas heating device (26) is provided below the hot gas diversion pipe (24), and the air inlet end of the hot gas diversion pipe (24) is connected to the exhaust end of the gas heating device (26) through a connecting pipe.

2. A drying device for preparing masterbatch according to claim 1, characterized in that: A fan (27) is provided on the front side of the gas diversion pipe (25), and the exhaust end of the fan (27) is connected to the intake end of the gas diversion pipe (25). A filter plate (28) is fixed in the intake port of the fan (27) by bolts.

3. A drying device for preparing masterbatch according to claim 2, characterized in that: The driving mechanism (22) comprises two driving rollers (221), the two driving rollers (221) are arranged on the left and right sides of a plurality of storage boxes (23) opposite to each other, and the outer peripheral wall of each driving roller (221) is interference fit with the inner wall of the conveyor belt (21), both ends of the driving roller (221) rotate and penetrate the shell wall of the outer shell (1), a driver (222) is fixedly installed on the front side of the outer shell (1), and the output end of the driver (222) is fixedly connected to the input end of the corresponding driving roller (221).

4. A drying device for preparing masterbatch according to claim 3, characterized in that: The exhaust mechanism (3) comprises an air intake pipe (31), the air intake pipe (31) being fixedly installed and penetrating through a middle position on the top side of the outer shell (1), an air pump (32) being fixedly installed on the top side of the outer shell (1) at a position corresponding to the air intake pipe (31), and an air intake end of the air pump (32) being fixedly installed and penetrating through a pipe wall of the air intake pipe (31), an air intake port of the air intake pipe (31) being arranged in a flared shape, and an exhaust end of the air pump (32) being connected and installed with an exhaust pipe (33).

5. A drying device for preparing masterbatch according to claim 4, characterized in that: A stopper (4) is fixedly installed in the feed port of the outer shell (1), and the bottom side of the stopper (4) contacts the corresponding outer arc wall of the conveyor belt (21); a cushion block (5) is fixedly installed in the discharge port of the outer shell (1), and the bottom side of the cushion block (5) contacts the corresponding outer arc wall of the conveyor belt (21); and the top side of the cushion block (5) is coplanar with the top side of the conveyor belt (21).

6. A drying device for preparing masterbatch according to claim 5, characterized in that: A sealing plate (34) is provided at the discharge end of the outer shell (1), and the sealing plate (34) is in contact with the outer wall of the outer shell (1), and the top end of the sealing plate (34) is rotatably connected to the outer shell (1) via a connecting block.

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