Plastic raw material particle steam purification device

Abstract

The utility model relates to a high-temperature purification device, in particular to a steam purification device for plastic raw material particles. Comprising a purification tank, a steam generator, a water tank and a tap water pipe, the tap water pipe is communicated with a top water inlet of the water tank, a bottom water outlet pipeline of the water tank is connected with a bottom water inlet of the steam generator, a top steam outlet pipeline of the steam generator is connected with a steam inlet pipe of the purification tank, and the steam inlet pipe is communicated with a plurality of branch pipes. The plurality of branch pipes extend from the top of the purification tank to a position close to the bottom of the purification tank, and a plurality of steam outlet holes are formed in the pipe walls of the branch pipes; according to the plastic raw material particle steam purification device adopting the scheme, VOCs and peculiar smell of plastic raw material particles are reduced through high-temperature steam, the working time consumption is shortened, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of high-temperature purification, in particular to a plastic raw material particle steam purification device. Background Art

[0002] Recycled plastic products are classified according to their density, and then heated, melted, compressed, and granulated to form plastic raw material particles. The plastic raw material particles are used to prepare corresponding plastic products. After the granulation process, the volatile organic compounds attached to the surface and inside the plastic raw material particles need to be removed, that is, VOCs are removed. These volatile organic compounds mainly include hydrocarbons (such as alkanes, alkenes, etc.), halogenated hydrocarbons, oxygen-containing and nitrogen-containing organic compounds, etc. These compounds are easy to volatilize into the air at room temperature, posing a threat to the environment and human health. At the same time, the odor of the plastic raw material particles must also be removed, and the source of these odors also includes the above-mentioned volatile organic compounds.

[0003] In the prior art, VOCs and odors are usually removed by hot air drying, which is time-consuming and energy-intensive, and is not conducive to sustainable green development. Utility Model Content

[0004] The utility model aims to provide a plastic raw material particle steam purification device, which reduces VOCs and odor of plastic raw material particles through high-temperature steam, shortens working time and reduces energy consumption.

[0005] A plastic raw material particle steam purification device in the present scheme includes a purification tank, a steam generator, a water tank and a tap water pipe, the tap water pipe is connected to the water inlet at the top of the water tank, the water outlet pipe at the bottom of the water tank is connected to the water inlet at the bottom of the steam generator, the steam outlet pipe at the top of the steam generator is connected to the steam inlet pipe of the purification tank, the steam inlet pipe is connected to a plurality of branch pipes, the plurality of branch pipes extend from the top of the purification tank to near the bottom of the purification tank, and a plurality of steam outlet holes are provided on the pipe wall of the branch pipe.

[0006] Tap water enters the water tank for storage, and the water in the water tank enters the steam generator to heat the water into high-temperature steam. The high-temperature steam is transported to the purification tank through the steam inlet pipe. Multiple branch pipes transport the high-temperature steam to various places in the purification tank, and the plastic raw material particles in the tank are treated with high-temperature steam to remove VOCs and remove odors.

[0007] Furthermore, an annular conveying pipe is provided between the steam inlet pipe and the multiple branch pipes, the end of the steam inlet pipe is connected to the top surface of the annular conveying pipe, the bottom surface of the annular conveying pipe is connected to the top ends of the multiple branch pipes, and the multiple branch pipes are arranged vertically downward, and their bottom ends extend to near the bottom of the purification tank.

[0008] Furthermore, the plurality of branch pipes are evenly distributed on the annular delivery pipe, so that the high-temperature steam is more evenly dispersed in the purification tank, so that the purification is more complete, the working efficiency is higher, and the effect is better.

[0009] Furthermore, there are six branch pipes, and the six branch pipes are evenly distributed at equal angles.

[0010] Furthermore, a water purifier is provided between the water tank and the water pipe, which uses pure water for steam treatment, making it cleaner and reducing scale, thereby increasing the service life of the equipment.

[0011] Furthermore, a temperature sensor is provided on the steam inlet pipe. The temperature sensor is provided at the steam inlet pipe close to the purification tank. The temperature sensor is used to detect whether the temperature of the high-temperature steam has reached a required value. If it is too low, pressurization is performed; if it is too high, pressure reduction is performed.

[0012] Furthermore, the steam inlet pipe is provided with an electric regulating valve for adjusting the flow of high-temperature steam.

[0013] Furthermore, a pressure regulating valve and a pressure gauge are provided on the steam inlet pipe. The pressure regulating valve is used to adjust the pressure environment of the high-temperature steam, thereby adjusting the high-temperature steam to the required temperature. The pressure gauge is used to display the pressure value of the equipment, which is more intuitive.

[0014] Furthermore, the pipe wall of the branch pipe is evenly distributed with the steam outlet holes in the circumferential direction, and the steam outlet holes are arranged so that the high-temperature steam can evenly distribute over the entire purification tank.

[0015] The utility model has the advantages of using high-temperature steam instead of the hot air drying method in the prior art to remove VOCs and odors in the raw material particles, thereby improving purification efficiency, reducing purification time, reducing purification energy consumption, and being conducive to sustainable green development. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a plastic raw material particle steam purification device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the annular delivery pipe and branch pipes in the purification tank of the utility model.

[0018] In the figure, 1 is a purification tank, 2 is a steam generator, 3 is a water tank, 4 is a pure water machine, 5 is a tap water pipe, 6 is a pressure regulating valve, 7 is a pressure gauge, 8 is an electric regulating valve, 9 is a temperature sensor, 10 is a steam inlet pipe, 11 is a ring delivery pipe, and 12 is a branch pipe. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] according to Figure 1 , 2 As shown, a plastic raw material particle steam purification device in this scheme includes a purification tank 1, a steam generator 2, a water tank 3, a water purifier 4 and a tap water pipe 5 which are connected in sequence through pipelines.

[0021] Specifically, the tap water pipe 5 is connected to the pure water machine 4, the pure water machine 4 is connected to the water inlet at the top of the water tank 3, the water outlet pipe at the bottom of the water tank 3 is connected to the water inlet at the bottom of the steam generator 2, the steam outlet pipe at the top of the steam generator 2 is connected to one end of the steam inlet pipe 10 of the purification tank 1, and the other end of the steam inlet pipe 10 enters the purification tank 1. Using pure water for steaming is cleaner, less scale, and also improves the service life of the equipment.

[0022] See Figure 2 The steam inlet pipe 10 is connected to a plurality of branch pipes 12 through an annular conveying pipe 11. The plurality of branch pipes 12 extend from the top of the purification tank 1 to near the bottom of the purification tank 1. The pipe wall of the branch pipe 12 is provided with a plurality of steam outlet holes (not shown in the figure). Specifically, in order to improve the purification effect, the pipe wall of the branch pipe is evenly covered with steam outlet holes in the circumference. In this embodiment, the end of the steam inlet pipe 10 is connected to the top surface of the annular conveying pipe 11, and the bottom surface of the annular conveying pipe 11 is connected to the top of the plurality of branch pipes 12. The plurality of branch pipes 12 are arranged vertically downward, and their bottom ends extend to near the bottom of the purification tank 1. Specifically, there are 6 branch pipes 12, and the 6 branch pipes 12 are evenly distributed at an angle of 60 degrees. This design allows the high-temperature steam to be more evenly dispersed in the purification tank 1, so that the purification is more sufficient, the working efficiency is higher, and the effect is better.

[0023] Tap water enters the water tank 3 for water storage, and the water in the water tank 3 enters the steam generator 2 to heat the water into high-temperature steam, which is then transported to the purification tank 1 through the steam inlet pipe 10, and multiple branch pipes 12 transport the high-temperature steam to various places in the purification tank 1, and the plastic raw material particles in the tank are treated with high-temperature steam to remove VOCs and odors, and the purified plastic raw material particles are then dried with hot air. This is much better than using hot air for purification and drying, and it also saves time and energy.

[0024] A pressure regulating valve 6, a pressure gauge 7, an electric regulating valve 8 and a temperature sensor 9 are arranged in sequence on the steam inlet pipe 10 from the steam generator 2 to the purification tank 1. The temperature sensor 9 is arranged at the steam inlet pipe 10 close to the purification tank 1 to detect whether the temperature of the high-temperature steam has reached the required value. If it is too low, the pressure is increased, and if it is too high, the pressure is reduced.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A plastic raw material particle steam purification device, characterized in that: The invention comprises a purification tank (1), a steam generator (2), a water tank (3) and a tap water pipe (5), wherein the tap water pipe (5) is connected to a water inlet at the top of the water tank (3), a water outlet pipe at the bottom of the water tank (3) is connected to a water inlet at the bottom of the steam generator (2), a steam outlet pipe at the top of the steam generator (2) is connected to a steam inlet pipe (10) of the purification tank (1), the steam inlet pipe (10) is connected to a plurality of branch pipes (12), the plurality of branch pipes (12) extend from the top of the purification tank (1) to near the bottom of the purification tank (1), and a plurality of steam outlet holes are provided on the pipe wall of the branch pipe (12).

2. A plastic raw material particle steam purification device according to claim 1, characterized in that: An annular conveying pipe (11) is provided between the steam inlet pipe (10) and the plurality of branch pipes (12); the end of the steam inlet pipe (10) is connected to the top surface of the annular conveying pipe (11); the bottom surface of the annular conveying pipe (11) is connected to the top ends of the plurality of branch pipes (12); the plurality of branch pipes (12) are arranged vertically downward, and their bottom ends extend close to the bottom of the purification tank (1).

3. A plastic raw material particle steam purification device according to claim 2, characterized in that: The plurality of branch pipes (12) are evenly distributed on the annular conveying pipe (11).

4. A plastic raw material particle steam purification device according to claim 3, characterized in that: The number of the branch pipes (12) is 6, and the 6 branch pipes (12) are evenly distributed at equal angles.

5. A plastic raw material particle steam purification device according to any one of claims 1 to 4, characterized in that: A water purifier (4) is also provided between the water tank (3) and the tap water pipe (5).

6. A plastic raw material particle steam purification device according to any one of claims 1 to 4, characterized in that: The steam inlet pipe (10) is provided with a temperature sensor (9), and the temperature sensor (9) is arranged at the steam inlet pipe (10) close to the purification tank (1).

7. A plastic raw material particle steam purification device according to any one of claims 1 to 4, characterized in that: The steam inlet pipe (10) is provided with an electric regulating valve (8).

8. A plastic raw material particle steam purification device according to any one of claims 1 to 4, characterized in that: The steam inlet pipe (10) is provided with a pressure regulating valve (6) and a pressure gauge (7).

9. A plastic raw material particle steam purification device according to any one of claims 1 to 4, characterized in that: The pipe wall of the branch pipe (12) is evenly distributed with the steam outlet holes in the circumferential direction.

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