Hot washing device

Abstract

The utility model discloses a hot washing device which comprises a tank body, an inner cylinder, a stirring assembly and a heating piece, the inner cylinder is fixed in the tank body, an annular space is formed between the inner cylinder and the tank body, a material inlet located above the inner cylinder is formed in the upper end of the tank body, and a material outlet located above the inner cylinder is formed in the lower end of the tank body. A sinking material outlet communicated with the inner cylinder and a floating material outlet communicated with the annular space are formed in the lower end of the tank body; the stirring assembly is arranged in the inner cylinder; the heating piece is arranged in the inner cylinder, and the heating piece is used for heating liquid in the inner cylinder. The hot washing device provided by the utility model has the beneficial effects that as a mixture of plastic scraps and water is continuously introduced, suspended impurities suspended at the top of the inner barrel flow into the annular space along with the water, and the mixture of the suspended impurities and the water is discharged from the floating material outlet and enters a subsequent process to be treated, so that the suspended impurities can be effectively removed through the device, and the service life of the device is prolonged. And the cleaning effect and the cleaning efficiency of the plastic chippings are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle recycling, in particular to a hot washing device. Background Art

[0002] Recycling plastic bottles can significantly reduce their environmental impact. When recycling plastic bottles, they are first crushed to produce plastic debris. These debris are then cleaned to remove any remaining dirt and impurities. The cleaned plastic pellets are then dried in a spin dryer or naturally in the sun to improve the quality of subsequent processing. The cleaned and dried plastic pellets are then fed into a specialized extruder for pelletization. These pellets have two basic uses: blown film and injection molding. Through these processes, the plastic pellets can be processed into a variety of recycled plastic products.

[0003] Among them, in the plastic debris cleaning process, the plastic debris is usually cleaned by a hot washer. The existing hot washer cannot remove suspended impurities in the plastic particles, resulting in poor cleaning effect. At the same time, the machine often needs to be stopped to clean impurities. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose a hot washing device to solve the technical problems that the existing hot washing machine cannot remove suspended impurities in plastic particles, resulting in poor cleaning effect and often requires shutdown for impurity cleaning.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a hot washing device, comprising:

[0007] Tank;

[0008] An inner cylinder is fixed in the tank body, an annular space is formed between the inner cylinder and the tank body, the upper end of the tank body is provided with a material inlet located above the inner cylinder, and the lower end of the tank body is provided with a sinking material outlet communicating with the inner cylinder and a floating material outlet communicating with the annular space;

[0009] a stirring assembly, the stirring assembly being disposed in the inner cylinder; and

[0010] A heating element is provided in the inner cylinder and is used to heat the liquid in the inner cylinder.

[0011] In some embodiments, the stirring assembly includes a stirring shaft, a stirring blade and a stirring motor. The stirring shaft is rotatably arranged in the inner cylinder, the stirring blade is fixed to the stirring shaft, and the stirring motor is connected to the stirring shaft and is used to drive the stirring shaft to rotate.

[0012] In some embodiments, the sediment outlet is provided with a discharge valve.

[0013] In some embodiments, a vent is further provided at the upper end of the tank body.

[0014] In some embodiments, a liquid level sensor is further provided in the tank body, and the liquid level sensor is used to detect the liquid level in the inner cylinder.

[0015] In some embodiments, the inner cylinder includes an inner layer and an outer layer, an annular accommodating cavity is formed between the outer layer and the inner layer, and the heating element includes a heating wire, which is located in the accommodating cavity and wound around the inner layer.

[0016] In some embodiments, a first wire passing opening is opened at the upper end of the outer layer, a second wire passing opening is opened at the upper end of the tank body, and the heating element further includes a wire, which passes through the first wire passing opening and the second wire passing opening in sequence.

[0017] In some embodiments, the first wire opening is arranged to be inclined downward in a direction away from the inner layer.

[0018] In some embodiments, a sealing ring is provided on the wire, and the sealing ring is plugged into the first wire passing opening.

[0019] In some embodiments, a temperature sensor is provided in the inner cylinder.

[0020] Compared with the prior art, the hot washing device provided by the utility model has the following beneficial effects: when in use, the plastic debris is mixed with water and then introduced into the material inlet. Since the density of the plastic debris is greater than that of water, the plastic debris continues to fall under the action of gravity and is stirred by the stirring component during the falling process, thereby cleaning the plastic debris. The plastic debris is finally discharged from the sinking material outlet for subsequent equipment to be processed; at the same time, the inner cylinder is always in a full water state. As the mixture of plastic debris and water is continuously introduced, the suspended impurities suspended at the top of the inner cylinder flow out into the annular space with the water, and the mixture of suspended impurities and water is then discharged from the floating material outlet and enters the subsequent process for processing. The device can effectively remove suspended impurities, thereby improving the cleaning effect and efficiency of the plastic debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a hot washing device provided by one embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 A partial enlarged view of the middle area A;

[0023] Figure 3 yes Figure 1A partial enlarged view of the middle area B;

[0024] Explanation of the accompanying numbers: 1-tank body, 11-annular space, 12-material inlet, 13-sinking material outlet, 131-discharge valve, 14-floating material outlet, 15-vent, 16-liquid level sensor, 17-second line outlet, 2-inner cylinder, 21-inner layer, 22-outer layer, 221-first line outlet, 23-accommodating chamber, 3-stirring assembly, 31-stirring shaft, 32-stirring blade, 33-stirring motor, 4-heating element, 41-heating wire, 42-conducting wire, 43-sealing ring, 44-temperature sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 invention and are not intended to limit the present invention.

[0026] In order to solve the technical problem that the existing hot washing machine cannot remove suspended impurities in plastic particles, resulting in poor cleaning effect and frequent need to stop the machine for impurity cleaning, the utility model provides a hot washing device that can effectively remove suspended impurities.

[0027] It should be noted that the hot washing device described in the present invention is used for but not limited to plastic bottle recycling, etc. For the convenience of explanation, in the present invention, only the hot washing device applied to plastic bottle recycling equipment is used as an example for explanation. The principle of applying the hot washing device to other types of equipment is essentially the same as the principle applied to plastic bottle recycling equipment, and will not be repeated here.

[0028] See also Figure 1 , Figure 1 Schematic diagram of the structure of a hot washing device in one embodiment of the present invention, the hot washing device includes a tank body 1, an inner cylinder 2, a stirring assembly 3 and a heating element 4.

[0029] The inner cylinder 2 is fixed in the tank body 1, and an annular space 11 is formed between the inner cylinder 2 and the tank body 1. The upper end of the tank body 1 is provided with a material inlet 12 located above the inner cylinder 2, and the lower end of the tank body 1 is provided with a sinking material outlet 13 connected to the inner cylinder 2 and a floating material outlet 14 connected to the annular space 11; the stirring assembly 3 is arranged in the inner cylinder 2, and the heating element 4 is arranged in the inner cylinder 2. The heating element 4 is used to heat the liquid in the inner cylinder 2 to improve the cleaning effect.

[0030] During use, the plastic debris is mixed with water and then introduced into the material inlet 12. Since the density of the plastic debris is greater than that of water, the plastic debris continues to fall under the action of gravity and is stirred by the stirring component 3 during the falling process, thereby cleaning the plastic debris. The plastic debris is finally discharged from the sediment outlet 13 for subsequent equipment to be processed. At the same time, the inner cylinder 2 is always in a full water state. As the mixture of plastic debris and water is continuously introduced, the suspended impurities suspended at the top of the inner cylinder 2 flow out into the annular space 11 with the water, and the mixture of suspended impurities and water is then discharged from the floating material outlet 14 and enters the subsequent process for processing. The device can effectively remove suspended impurities, thereby improving the cleaning effect and efficiency of plastic debris.

[0031] In one embodiment, see Figure 1 The stirring assembly 3 includes a stirring shaft 31, a stirring blade 32 and a stirring motor 33. The stirring shaft 31 is rotatably arranged in the inner cylinder 2, the stirring blade 32 is fixed to the stirring shaft 31, and the stirring motor 33 is connected to the stirring shaft 31 and is used to drive the stirring shaft 31 to rotate.

[0032] In one embodiment, see Figure 1 The sediment outlet 13 is provided with a discharge valve 131, so as to facilitate the control of the sediment discharge speed.

[0033] In one embodiment, see Figure 1 A vent 15 is also provided at the upper end of the tank body 1 to facilitate maintaining the internal pressure of the tank body 1 stable.

[0034] In one embodiment, see Figure 1 A liquid level sensor 16 is also provided in the tank body 1. The liquid level sensor 16 is used to detect the liquid level in the inner tube 2 and keep the liquid level stable by controlling the feeding speed and the discharging speed.

[0035] In one embodiment, see Figure 1 and Figure 2 The inner cylinder 2 includes an inner layer 21 and an outer layer 22, and an annular accommodating cavity 23 is formed between the outer layer 22 and the inner layer 21. The heating element 4 includes a heating wire 41, which is located in the accommodating cavity 23 and is wound around the inner layer 21. The inner layer 21 is heated by the heating wire 41. The inner layer 21 is made of a heat-conducting material, such as stainless steel, so that heat is transferred to the liquid in the inner layer 21, thereby increasing the temperature of the liquid. In this embodiment, by providing the inner layer 21 and the outer layer 22, the heating wire 41 is not in direct contact with the liquid, thereby improving safety. At the same time, by evenly winding the heating wire 41 around the inner layer 21, the heating uniformity can be improved.

[0036] In one embodiment, see Figure 1 and Figure 3 A first wire passing opening 221 is provided at the upper end of the outer layer 22, and a second wire passing opening 17 is provided at the upper end of the tank body 1. The heating element 4 also includes a wire 42, which passes through the first wire passing opening 221 and the second wire passing opening 17 in sequence, thereby connecting the heating wire 41 to electricity.

[0037] In one embodiment, see Figure 1 and Figure 3 The first wire-passing opening 221 is arranged to be inclined downward in a direction away from the inner layer 21 , thereby preventing liquid from entering the accommodating cavity 23 through the first wire-passing opening 221 and contacting the heating wire 41 .

[0038] In one embodiment, see Figure 1 and Figure 3 The wire 42 is sleeved with a sealing ring 43 , and the sealing ring 43 is plugged into the first wire passing port 221 , thereby further preventing liquid from entering the accommodating cavity 23 .

[0039] In one embodiment, see Figure 1 and Figure 3 A temperature sensor 44 is provided in the inner tube 2 to facilitate detection of the temperature of the liquid in the inner tube 2, thereby being used to control the start and stop of the heating element 4.

[0040] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the present invention is described in detail: when in use, the plastic debris is mixed with water and then introduced into the material inlet 12. Since the density of the plastic debris is greater than that of water, the plastic debris continues to fall under the action of gravity and is stirred by the stirring component 3 during the falling process, thereby cleaning the plastic debris. The plastic debris is finally discharged from the sinking material outlet 13 for subsequent equipment to process; at the same time, the inner cylinder 2 is always in a full water state. As the mixture of plastic debris and water is continuously introduced, the suspended impurities suspended at the top of the inner cylinder 2 flow out into the annular space 11 with the water, and the mixture of suspended impurities and water is then discharged from the floating material outlet 14 and enters the subsequent process for processing. The present device can effectively remove suspended impurities, thereby improving the cleaning effect and efficiency of the plastic debris.

[0041] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A hot washing device, characterized in that: include: Tank; An inner cylinder is fixed in the tank body, an annular space is formed between the inner cylinder and the tank body, the upper end of the tank body is provided with a material inlet located above the inner cylinder, and the lower end of the tank body is provided with a sinking material outlet communicating with the inner cylinder and a floating material outlet communicating with the annular space; A stirring assembly, the stirring assembly is arranged in the inner cylinder; as well as, A heating element is provided in the inner cylinder and is used to heat the liquid in the inner cylinder.

2. The hot washing device according to claim 1, characterized in that The stirring assembly includes a stirring shaft, a stirring blade and a stirring motor. The stirring shaft is rotatably arranged in the inner cylinder, the stirring blade is fixed to the stirring shaft, and the stirring motor is connected to the stirring shaft and is used to drive the stirring shaft to rotate.

3. The hot washing device according to claim 1, characterized in that The sediment outlet is provided with a discharge valve.

4. The hot washing device according to claim 1, characterized in that A vent is also provided at the upper end of the tank body.

5. The hot washing device according to claim 1, characterized in that A liquid level sensor is also provided in the tank body, and the liquid level sensor is used to detect the liquid level in the inner cylinder.

6. The hot washing device according to claim 1, characterized in that The inner cylinder includes an inner layer and an outer layer, an annular accommodating cavity is formed between the outer layer and the inner layer, and the heating element includes a heating wire, which is located in the accommodating cavity and wound around the inner layer.

7. The hot washing device according to claim 6, characterized in that A first wire passing opening is formed at the upper end of the outer layer, a second wire passing opening is formed at the upper end of the tank body, and the heating element further comprises a wire which passes through the first wire passing opening and the second wire passing opening in sequence.

8. The hot washing device according to claim 7, characterized in that The first wire-passing opening is arranged obliquely downward in a direction away from the inner layer.

9. The hot washing device according to claim 7, characterized in that A sealing ring is sleeved on the wire, and the sealing ring is plugged into the first wire passing opening.

10. The hot washing device according to claim 1, characterized in that A temperature sensor is arranged in the inner cylinder.

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