Raw material dehumidifying and drying system

Abstract

The utility model discloses a raw material dehumidification drying system belongs to raw material processing technical field, include: storage bucket, drying -machine, electric eye hopper, injection molding machine, the lower part of storage bucket is the discharge gate, the discharge gate connects suction pipeline, the upper portion of drying -machine is vacuum hopper, and the middle part is drying material bucket, and the lower part is suction box, the side of vacuum hopper is provided with suction port, and the upper portion is provided with suction air inlet, the suction port is connected with suction pipeline, and suction air inlet is connected suction fan through pipeline, and the other end of suction fan is connected with suction box, and drying material bucket is provided with honeycomb runner, the upper portion of electric eye hopper is provided with suction air inlet, and suction air inlet is connected with suction fan through suction pipeline, the feed inlet of injection molding machine is connected with electric eye hopper. The utility model system degree of integration is high, adopts honeycomb runner depth dehumidification, and the energy -conserving of closed circuit cycle, automatic conveying, provide stable reliable dehumidification effect, ensure injection product quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic raw material processing technology, specifically to a raw material dehumidification and drying system. Background Technology

[0002] In the injection molding industry, raw materials commonly used in the production of water pipes, valves, and other products, such as PP, PE, PVC, and ABS, all have a certain degree of hygroscopicity. If the raw materials are not dried sufficiently, the residual moisture will vaporize during the high-temperature injection molding process, leading to air bubbles and silver streaks inside the product, affecting its appearance and mechanical properties. For water pipes, internal air bubbles may reduce their pressure resistance; for valves, they may affect their sealing performance and structural integrity.

[0003] Existing drying equipment suffers from the following problems: first, its dehumidification effect is unstable, making it difficult to meet the requirements of large-scale continuous production; second, its energy consumption is high, increasing production costs; and third, it easily introduces impurities or generates dust during raw material transportation, affecting product quality. Therefore, there is an urgent need for a drying system specifically designed for injection molding production that offers excellent dehumidification, stable operation, and maintains the cleanliness of raw materials. Utility Model Content

[0004] The purpose of this invention is to provide a raw material dehumidification and drying system to solve the above problems, provide a stable and reliable dehumidification effect, and ensure the quality of injection molded products.

[0005] Technical Solution: This utility model provides a raw material dehumidification and drying system, including: a storage tank, a dryer, an electro-optic hopper, and an injection molding machine. The storage tank has a discharge port at its bottom, connected to a suction pipe. The dryer has a vacuum hopper at the top, a drying tank in the middle, and a suction box at the bottom. The vacuum hopper has a suction port on its side and a suction air inlet at its top. The suction port is connected to the suction pipe to suck the raw material out of the storage tank. The suction air inlet is connected to a suction fan through a pipe. The other end of the suction fan is connected to the suction box and branches off to an exhaust port. The drying tank is equipped with a honeycomb rotor, which is divided into a dehumidification zone, a regeneration zone, and a cooling zone. The honeycomb rotor absorbs moisture from the air returning from the drying tank and then blows it into the material cylinder. The electro-optic hopper has a suction port at its top, connected to the suction fan through a suction pipe. The injection molding machine's inlet is connected to the electro-optic hopper.

[0006] Furthermore, in the aforementioned raw material dehumidification and drying system, a three-way valve and an air suction filter are installed on the air inlet pipe of the suction fan.

[0007] Furthermore, in the aforementioned raw material dehumidification and drying system, the honeycomb rotor is connected to the drying hopper via an air outlet pipe and a return air pipe. The air outlet pipe discharges hot and humid air, and the return air pipe returns the cooled and dried air back into the drying hopper.

[0008] Furthermore, in the aforementioned raw material dehumidification and drying system, a cooling mechanism is provided on the air outlet duct.

[0009] Furthermore, in the aforementioned raw material dehumidification and drying system, a drying heater is installed on the return air duct.

[0010] Furthermore, in the aforementioned raw material dehumidification and drying system, the honeycomb rotor is also connected to a regeneration air assembly. The regeneration air assembly draws air from the outside atmosphere into the honeycomb rotor, and a regeneration filter, a regeneration fan, and a regeneration heater are arranged sequentially from the outside to the inside to provide hot air to the regeneration zone of the honeycomb rotor.

[0011] Furthermore, in the aforementioned raw material dehumidification and drying system, the cooling mechanism includes a return air filter, a first cooler, a drying fan, and a second cooler arranged in sequence. Cooling water circulates between the first cooler and the second cooler to cool and initially dry the high-temperature and high-humidity air brought out of the storage tank before it enters the honeycomb rotor for dehumidification.

[0012] Furthermore, in the aforementioned raw material dehumidification and drying system, a high-efficiency filter is installed inside the storage tank, and an optical-grade storage tank is used to ensure that the raw materials are not contaminated.

[0013] Furthermore, in the aforementioned raw material dehumidification and drying system, the photoelectric sensor hopper is a powder-removing hopper, which can remove fine powder from the raw materials and prevent stains from forming.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: The raw material dehumidification and drying system of this utility model has a high degree of system integration and a compact process. It adopts honeycomb rotary dehumidification technology, which has high and stable dehumidification efficiency and can deeply remove moisture from the raw materials. It forms a closed-loop circulation through the air outlet pipe and the air return pipe, and most of the drying hot air is recycled within the system, reducing energy loss. By setting filters at key points such as the storage tank and the suction pipe, and using optical-grade storage tanks and powder removal photoelectric sensor hoppers, multiple protections are provided to ensure that the raw materials are not affected by contamination and powder, meeting the production requirements of high-end products. Through the cooperation of components such as fans, valves, and photoelectric sensors, the system realizes automated continuous feeding and drying from storage to the forming machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a raw material dehumidification and drying system according to the present invention.

[0016] In the diagram: 1. Storage hopper; 2. Dryer; 21. Vacuum hopper; 22. Drying hopper; 221. Honeycomb rotor; 23. Suction box; 3. Photoelectric hopper; 4. Injection molding machine; 5. Suction fan; 51. Three-way valve; 52. Suction filter; 6. Cooling mechanism; 61. Return air filter; 62. First cooler; 63. Drying fan; 64. Second cooler; 7. Drying heater; 8. Regeneration air assembly; 81. Regeneration filter; 82. Regeneration fan; 83. Regeneration heater. Detailed Implementation

[0017] Example 1 like Figure 1 The raw material dehumidification and drying system shown includes: a storage tank 1, a dryer 2, a photoelectric hopper 3, and an injection molding machine 4. The storage tank 1 has a discharge port at its bottom, which is connected to a suction pipe. The storage tank 1 is equipped with a high-efficiency filter and uses an optical-grade storage tank to ensure the raw material is not contaminated. The dryer 2 has a vacuum hopper 21 at the top, a drying tank 22 in the middle, and a suction box 23 at the bottom. The vacuum hopper 21 has a suction port on its side and a suction air vent at its top. The suction port is connected to a suction pipe to suck out the raw material from the storage tank 1. The suction air vent is connected to a suction fan 5 via a pipe. The other end of the suction fan 5 is connected to the suction box 23, and an exhaust port is branched out. The drying hopper 22 is equipped with a honeycomb rotor 221, which is divided into a dehumidification zone, a regeneration zone, and a cooling zone. It absorbs the moisture in the air returning from the drying hopper 22 and then blows it into the material cylinder. The upper part of the photoelectric hopper 3 is provided with an air intake, which is connected to the suction fan 5 through an air intake pipe. The photoelectric hopper 3 is a powder removal hopper, which can remove fine powder in the raw material and avoid the formation of stains. The feed port of the injection molding machine 4 is connected to the photoelectric hopper 3 to receive the raw material that has been dried and powdered.

[0018] In this embodiment, a three-way valve 51 and an air suction filter 52 are installed on the air inlet pipe of the suction fan 5. The three-way valve 51 is used to adjust the air volume of the system, and the air suction filter 52 is used to ensure that the air entering the system is clean.

[0019] In this embodiment, the honeycomb rotor 221 is connected to the drying hopper 22 via an air outlet pipe and a return air pipe. The air outlet pipe discharges hot and humid air, and the return air pipe returns cooled and dried air back into the drying hopper 22. The air outlet pipe discharges hot and humid air, and the return air pipe sends cooled and dried air back to the drying hopper 22, forming a closed-loop circulation system and improving energy utilization efficiency.

[0020] Example 2 Based on Example 1, in this example, as Figure 1The raw material dehumidification and drying system shown has a cooling mechanism 6 installed on the air outlet pipe and a drying electric heater 7 installed on the air return pipe, which is used to heat the air about to enter the drying hopper 22 to ensure the drying temperature.

[0021] In this embodiment, the cooling mechanism 6 includes a return air filter 61, a first cooler 62, a drying fan 63, and a second cooler 64 arranged in sequence. Cooling water circulates between the first cooler 62 and the second cooler 64, and the two-stage cooling ensures effective cooling of the circulating air.

[0022] In this embodiment, the honeycomb rotor 221 is also connected to a regeneration air assembly 8. The regeneration air assembly 8 draws air from the outside atmosphere into the honeycomb rotor 221. From the outside to the inside, a regeneration filter 81, a regeneration fan 82, and a regeneration heater 83 are arranged in sequence. The regeneration filter 81 ensures the cleanliness of the regeneration air, and the regeneration heater 83 provides the heat required to desorb moisture from the rotor.

[0023] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A raw material dehumidification and drying system, characterized in that: include: Storage tank (1), with a discharge port at the bottom of the storage tank (1), and the discharge port is connected to a suction pipe; Dryer (2), the upper part of the dryer (2) is a vacuum hopper (21), the middle part is a drying barrel (22), and the lower part is a suction box (23). The vacuum hopper (21) is provided with a suction port on the side and a suction air port on the upper part. The suction port is connected to the suction pipe to suck out the raw material in the storage barrel (1). The suction air port is connected to the suction fan (5) through the pipe. The other end of the suction fan (5) is connected to the suction box (23) and branches out to the exhaust port. The drying barrel (22) is equipped with a honeycomb rotor (221). The honeycomb rotor (221) is divided into a dehumidification zone, a regeneration zone, and a cooling zone. It adsorbs the moisture in the air returning from the drying barrel (22) and blows it into the barrel. Photoelectric sensor hopper (3), with an air inlet at the top of the photoelectric sensor hopper (3), and the air inlet is connected to the suction fan (5) through a suction pipe; Injection molding machine (4), the feed port of which is connected to photoelectric hopper (3).

2. The raw material dehumidification and drying system according to claim 1, characterized in that: The suction fan (5) is equipped with a three-way valve (51) and a suction filter (52) on the air inlet pipe.

3. The raw material dehumidification and drying system according to claim 1, characterized in that: The honeycomb rotor (221) is connected to the drying hopper (22) by an air outlet pipe and a return air pipe. The air outlet pipe discharges hot and humid air, and the return air pipe returns the cooled and dried air back into the drying hopper (22).

4. The raw material dehumidification and drying system according to claim 3, characterized in that: A cooling mechanism (6) is provided on the air outlet pipe.

5. The raw material dehumidification and drying system according to claim 4, characterized in that: A drying heater (7) is installed on the return air duct.

6. The raw material dehumidification and drying system according to claim 1, characterized in that: The honeycomb rotor (221) is also connected to a regeneration air assembly (8), which draws air from the outside atmosphere into the honeycomb rotor (221). From the outside to the inside, a regeneration filter (81), a regeneration fan (82), and a regeneration heater (83) are arranged in sequence.

7. The raw material dehumidification and drying system according to claim 4, characterized in that: The cooling mechanism (6) includes a return air filter (61), a first cooler (62), a drying fan (63), and a second cooler (64) arranged in sequence, with cooling water circulating between the first cooler (62) and the second cooler (64).

8. The raw material dehumidification and drying system according to claim 1, characterized in that: The storage tank (1) is equipped with a high-efficiency filter and uses an optical-grade storage tank to ensure that the raw materials are not contaminated.

9. The raw material dehumidification and drying system according to claim 1, characterized in that: The photoelectric hopper (3) is a powder removal hopper, which can remove fine powder from the raw materials and avoid the formation of stains.

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