Plastic deodorizing device
By combining the circulation pipeline and spray components with the heating components, the problems of high energy consumption, long heating cycle and incomplete deodorization of plastic deodorizing devices are solved, achieving efficient deodorization and reduced energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KINGFA SCI & TECH
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
Existing plastic deodorization devices have high energy consumption, long heating cycles, and incomplete deodorization, which limits their widespread use.
The design combines a circulation pipeline and a spray assembly with a heating assembly. The circulation pipeline ensures that the plastic granules are evenly mixed and release VOC gases under heating. At the same time, liquid is sprayed to humidify and improve drying efficiency. Temperature and humidity sensors are used to monitor and control the heating and spraying processes.
It achieves efficient deodorization, reduces energy consumption, improves deodorization effect and drying efficiency, and ensures production safety.
Smart Images
Figure CN224116499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic deodorization device. Background Technology
[0002] Plastic, as one of the most common materials in people's daily lives, has been widely used in agriculture, industry, transportation, packaging, construction, medical supplies, advanced defense industries, and various other fields. Because plastic raw materials contain odors, odor level requirements have been established to reduce the harm to human health from volatile organic compounds (VOCs) emitted by plastic products. The odor of plastic raw materials typically comes from VOCs. Heating the plastic raw materials to a certain temperature can accelerate the volatilization of odorous substances in the plastic granules, significantly reducing VOC emissions during the processing of plastic products and lowering the odor level of the produced plastic products, thus meeting market demands. However, current devices for heating plastic granules to remove odors typically suffer from high energy consumption, long heating cycles, and incomplete odor removal, limiting the widespread use of plastic heat treatment odor removal processes. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a plastic deodorization device, aiming to solve the technical problems of high energy consumption, long heating cycle, and incomplete deodorization in current plastic deodorization devices.
[0004] This application provides a plastic deodorizing device, including:
[0005] The tank has a sealed storage cavity for storing plastic granules. The top of the tank is provided with an inlet pipe and a liquid inlet pipe that communicate with the storage cavity, and the bottom of the tank is provided with an outlet pipe that communicates with the storage cavity.
[0006] A circulation pipeline, one end of which is connected to the discharge pipe and the other end of which is connected to the storage chamber, is equipped with a power pump;
[0007] A spraying assembly, which is built into the storage chamber and connected to the liquid inlet pipe, is used to spray liquid into the storage chamber;
[0008] The heating assembly includes an air inlet pipe and a heating element. One end of the air inlet pipe passes through the side wall of the tank and communicates with the storage chamber, while the other end is used to connect to an external air source. The heating element is built into the pipe of the air inlet pipe.
[0009] In one embodiment, the spray assembly includes a spray head and a plurality of nozzles. The spray head is arranged horizontally and communicates with the liquid inlet pipe. The plurality of nozzles are distributed horizontally at intervals on the surface of the spray head facing the bottom of the tank, and the nozzles communicate with the interior of the spray head.
[0010] In one embodiment, the inner diameter of the nozzle gradually increases from the top to the bottom of the tank.
[0011] In one embodiment, the projection of the spray head on the bottom of the tank is offset from the projection of the feed pipe on the bottom of the tank.
[0012] In one embodiment, the inner wall of the tank is provided with a temperature and humidity sensor.
[0013] In one embodiment, the sidewall of the tank is fitted with a viewing window that extends through the sidewall.
[0014] In one embodiment, a support frame is also included, the support frame comprising a frame and a plurality of support beams distributed and connected to the corners of the frame, the plurality of support beams being connected to the bottom of the tank.
[0015] In one embodiment, the end of the air intake pipe away from the tank is flared.
[0016] In one embodiment, a first flange is provided at the end of the feed pipe away from the tank body.
[0017] In one embodiment, a second flange is provided at the end of the inlet pipe away from the tank body.
[0018] Compared with the prior art, the technical solutions provided in this application have the following advantages:
[0019] During operation, plastic granules are fed into the storage chamber through the feed pipe. An external air source then introduces gas into the feed pipe, which, under the heating element, generates hot air that is then introduced into the storage chamber to heat the plastic granules. Simultaneously, driven by a power pump, the plastic granules flow out of the storage chamber through the circulation pipe and then back into the storage chamber, repeating this cycle to ensure uniform mixing of the plastic granules. This accelerates the release of VOC gases from the surface of the plastic granules, achieving efficient deodorization and reducing energy consumption. Additionally, liquid is introduced into the liquid inlet pipe and sprayed onto the plastic granules through spray heads and nozzles, humidifying them. Under the heating effect of the hot air, the liquid carries away low-molecular-weight substances, further improving drying efficiency and deodorization. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the structure of a plastic deodorizing device according to an embodiment of this application;
[0021] Figure 2 This is a schematic diagram of the internal structure of a plastic deodorizing device according to an embodiment of this application.
[0022] Numbering on the map:
[0023] 10. Tank body; 10a. Storage chamber; 11. Feed pipe; 12. Liquid inlet pipe; 13. Discharge pipe; 20. Circulation pipeline; 30. Heating assembly; 31. Air inlet pipe; 32. Heating element; 40. Power pump; 50. Support frame; 51. Frame; 52. Support beam; 60. Visual window; 70. First flange; 80. Second flange; 90. Spray assembly; 91. Spray head; 92. Nozzle. Detailed Implementation
[0024] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0026] Please refer to Figure 1 and Figure 2 This application provides a plastic deodorizing device, including a tank 10, a circulation pipeline 20, a spray assembly 90, and a heating assembly 30.
[0027] Specifically, the tank 10 has a sealed storage chamber 10a for storing plastic granules. The top of the tank 10 is provided with an inlet pipe 11 and a liquid inlet pipe 12 communicating with the storage chamber 10a, and the bottom of the tank 10 is provided with an outlet pipe 13 communicating with the storage chamber 10a. One end of the circulation pipe 20 is connected to the outlet pipe 13, and the other end is connected to the storage chamber 10a. A power pump 40 is installed on the circulation pipe 20, which provides the power for the circulation pipe 20 to adsorb plastic granules. A spray assembly 90 is built into the storage chamber 10a and connected to the liquid inlet pipe 12 for spraying liquid into the storage chamber 10a. The heating assembly 30 includes an air inlet pipe 31 and a heating element 32. One end of the air inlet pipe 31 passes through the side wall of the tank 10 and communicates with the storage chamber 10a, while the other end is used to connect to an external air source. The heating element 32 is built inside the air inlet pipe 31 and is used to heat the gas introduced into the air inlet pipe 31 so as to introduce hot gas into the storage chamber 10a to bake the plastic particles.
[0028] For example, one end of the circulation pipe 20 is connected to the discharge pipe 13, and the other end is connected to the tank 10. Under the action of the power pump 40, a negative pressure environment is formed in the storage chamber 10a, thereby causing the plastic particles in the discharge chamber to circulate. This ensures uniform mixing of the material in the storage chamber 10a and helps to accelerate the release of VOC gas from the plastic particles. It should be noted that the power pump 40 can be any pump commonly used in the prior art to create negative pressure, as long as it can circulate the material in the storage chamber 10a into the tank 10. There are no limitations on this.
[0029] For example, an external air source introduces air into the air inlet pipe 31. Under the heating action of the heating element 32, the gas entering the air inlet pipe 31 is heated to the required temperature. The heated gas then enters the storage chamber 10a, thereby heating and baking the plastic particles within the storage chamber 10a, causing the surface of the plastic particles to continuously release VOC gases. In other words, the heating element 32 serves to heat the introduced gas. The heating element 32 can be a thermocouple or any existing component capable of heating gas; there is no limitation on its application. Furthermore, the required temperature for heating the introduced gas is set according to the characteristics of the plastic particles, specifically between 100°C and 150°C.
[0030] In this application, plastic granules are fed into the storage chamber 10a through the feed pipe 11. An external air source then introduces gas into the air inlet pipe 31, which, under the heating effect of the heating element 32, forms hot air that is then introduced into the storage chamber 10a to heat the plastic granules. Simultaneously, under the action of the power pump 40, the plastic granules in the storage chamber 10a flow out of the circulation pipe 20 and then flow back into the storage chamber 10a through the circulation pipe 20. This cycle repeats continuously, ensuring uniform mixing of the plastic granules and accelerating the release of VOC gases from the surface of the plastic granules, thereby achieving efficient deodorization of the plastic granules and reducing energy consumption. Additionally, liquid is introduced into the liquid inlet pipe 12 and sprayed onto the plastic granules under the action of the spray head 91 and nozzle 92, thereby humidifying the plastic granules. Under the heating effect of the hot air, the liquid can carry away low-molecular-weight substances, which is beneficial for improving drying efficiency and deodorization effect.
[0031] In one embodiment, the spray assembly 90 includes a spray head 91 and a plurality of nozzles 92. The spray head 91 is arranged in a horizontal direction and is connected to the liquid inlet pipe 12. The plurality of nozzles 92 are distributed in a horizontal direction at intervals on the surface of the spray head 91 facing the bottom of the tank 10, and the nozzles 92 are connected to the interior of the spray head 91.
[0032] In practical applications, an external water source is introduced into the liquid inlet pipe 12 and enters the spray head 91. Then, under the action of multiple nozzles 92, the water is sprayed onto the surface of the plastic particles. Because multiple nozzles 92 are provided, the water can be sprayed onto the surface of the plastic particles more evenly, ensuring a certain level of humidity. In turn, under the action of hot air, the liquid can carry away low-molecular-weight substances, which is beneficial to improving drying efficiency and deodorization effect.
[0033] In one embodiment, the inner diameter of the nozzle 92 gradually increases from the top to the bottom of the tank 10. This allows the water to be sprayed out in a diffused manner, resulting in a better spraying effect on the plastic particles.
[0034] In one embodiment, the projection of the spray head 91 on the bottom of the tank 10 is offset from the projection of the feed pipe 11 on the bottom of the tank 10. This effectively prevents plastic particles from being blocked by the spray head 91 during their passage into the storage chamber 10a, thus avoiding repeated impacts that could damage the spray head 91.
[0035] In one embodiment, a temperature and humidity sensor is installed on the inner wall of the tank 10 to monitor the temperature and humidity inside the storage chamber 10a. That is, by using the temperature and humidity sensor inside the tank 10 to monitor the temperature and humidity inside the storage chamber 10a, if the temperature is detected to be too high, a signal is transmitted to the controller, which then controls the alarm to issue an alarm signal and automatically stops heating; if the humidity is detected to be too high, a signal is transmitted to the controller, which then controls the alarm to issue an alarm signal and automatically stops spraying. This ensures production safety.
[0036] In one embodiment, a visualization window 60 for observing the interior of the storage chamber 10a is embedded in the outer surface of the tank body 10. That is, the operator can observe the material in the storage chamber 10a through the visualization window 60 and understand the state of the plastic particles in the storage chamber 10a in real time.
[0037] In one embodiment, a support frame 50 is also included. The support frame 50 includes a frame 51 and a plurality of support beams 52 distributed at the corners of the frame 51. The plurality of support beams 52 are connected to the bottom of the tank 10. In this way, the tank 10 can be supported upward, avoiding direct contact with the ground, and effectively reducing heat loss inside the tank 10.
[0038] In one embodiment, the end of the air inlet pipe 31 furthest from the tank 10 is funnel-shaped. This accelerates the entry of gas, which is beneficial for improving the heating effect on the plastic granules.
[0039] In one embodiment, the end of the feed pipe 11 furthest from the tank body 10 is provided with a first flange 70, and the end of the liquid inlet pipe 12 furthest from the tank body 10 is provided with a second flange 80. That is, when plastic granules are introduced into the storage chamber 10a, a connecting pipe is needed to connect to the feed pipe 11, allowing the plastic granules to smoothly enter the storage chamber 10a. The first flange 70 on the feed pipe 11 enables quick connection between the connecting pipe and the feed pipe 11, resulting in a simple structure and convenient assembly / disassembly. Similarly, the second flange 80 on the liquid inlet pipe 12 serves the same function as the first flange 70; details can be found by referring to the first flange 70, and will not be elaborated further.
[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A plastic deodorizing device, characterized in that, include: The tank has a sealed storage cavity for storing plastic granules. The top of the tank is provided with an inlet pipe and a liquid inlet pipe that communicate with the storage cavity, and the bottom of the tank is provided with an outlet pipe that communicates with the storage cavity. A circulation pipeline, one end of which is connected to the discharge pipe and the other end of which is connected to the storage chamber, is equipped with a power pump; A spraying assembly, which is built into the storage chamber and connected to the liquid inlet pipe, is used to spray liquid into the storage chamber; The heating assembly includes an air inlet pipe and a heating element. One end of the air inlet pipe passes through the side wall of the tank and communicates with the storage chamber, while the other end is used to connect to an external air source. The heating element is built into the pipe of the air inlet pipe.
2. The plastic deodorizing device according to claim 1, characterized in that, The spray assembly includes a spray head and multiple nozzles. The spray head is arranged horizontally and is connected to the liquid inlet pipe. The multiple nozzles are distributed horizontally at intervals on the surface of the spray head facing the bottom of the tank, and the nozzles are connected to the interior of the spray head.
3. The plastic deodorizing device according to claim 2, characterized in that, The inner diameter of the nozzle gradually increases from the top to the bottom of the tank.
4. The plastic deodorizing device according to claim 2, characterized in that, The projection of the spray head on the bottom of the tank is offset from the projection of the feed pipe on the bottom of the tank.
5. The plastic deodorizing device according to claim 1, characterized in that, The inner wall of the tank is equipped with a temperature and humidity sensor.
6. The plastic deodorizing device according to any one of claims 1-5, characterized in that, The tank body has a viewing window embedded in its side wall that extends through the side wall.
7. The plastic deodorizing device according to any one of claims 1-5, characterized in that, It also includes a support frame, which includes a frame and a plurality of support beams distributed and connected to the corners of the frame, and the plurality of support beams are connected to the bottom of the tank.
8. The plastic deodorizing device according to any one of claims 1-5, characterized in that, The end of the air intake pipe furthest from the tank is flared.
9. The plastic deodorizing device according to any one of claims 1-5, characterized in that, The feed pipe is provided with a first flange at the end away from the tank body.
10. The plastic deodorizing device according to claim 9, characterized in that, A second flange is provided at the end of the inlet pipe away from the tank body.