Granular material purification equipment and method for removing static electricity of granular material

Abstract

The invention provides granule purification equipment and method for removing static electricity of granules, and relates to the technical field of granule treatment, the equipment comprises a granule purification equipment body, a light wave equipment module and an illumination treatment cavity; the light wave equipment module and the light treatment cavity are both arranged in the granule purification equipment body; a granular material flowing channel of the granular material purification equipment body passes through the illumination treatment cavity; the light wave equipment module is used for irradiating the granular materials which move along the granular material flowing channel and enter the illumination treatment cavity so as to realize static electricity removal treatment on the granular materials; wherein light waves emitted by the light wave equipment module can ionize air around the granules. On the basis, the static electricity carried by the granules is neutralized by ions generated by photoinduced air ionization, so that harmful substances such as ozone are not generated, and the device is safe and environment-friendly; and due to the non-contact optical radiation treatment mode, the static electricity of the particles can be efficiently removed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of granular material processing, and more particularly to a granular material purification device and method for removing static electricity of granular material. BACKGROUND

[0002] In the production, transportation, processing and storage of granular materials such as polymer granules, rice and wheat, mutual friction between granular materials and friction between granular materials and equipment are prone to generate static electricity. The presence of static electricity can cause a series of problems, for example, static adsorption can cause granular materials to agglomerate, affecting their flowability; at the same time, static electricity can also adsorb dust and other impurities in the environment, reducing product purity and affecting product quality. In some specific environments, the accumulation and discharge of static electricity can even cause serious safety accidents such as combustion or explosion.

[0003] In order to solve the above problems, the prior art usually uses contact guiding technology or plasma wind technology to remove static electricity of granular materials. Among them, the contact guiding technology guides the static electricity carried by the granular materials into the ground by setting a grounded conductor. However, this method requires the granular materials to be in full contact with the conductor, and the processing efficiency is low, which is difficult to meet the needs of large-scale and continuous production. The plasma wind technology generates positive and negative ions by ionizing air through a high-voltage electrode, and blows these ions to the surface of the granular materials to neutralize the static electricity carried by them. Although the processing efficiency of the ion wind technology is relatively high, it will inevitably produce harmful by-products such as ozone in the process of ionizing air through high-voltage discharge, which not only endangers the health of the operators, but also causes corrosion to the equipment.

[0004] Therefore, how to efficiently, safely and environmentally remove static electricity of granular materials has become a technical problem to be solved by those skilled in the art. SUMMARY

[0005] Therefore, in order to solve the above technical problems, the present application provides a granular material purification device and method for removing static electricity of granular material.

[0006] The present application provides the following technical solutions: In a first aspect, the present application provides a granular material purification device for removing static electricity of granular material, comprising: a granular material purification device body, a light wave device module and a light irradiation treatment cavity; The light wave device module and the light irradiation treatment cavity are both arranged in the granular material purification device body; The granular material flow channel of the granular material purification device body passes through the light irradiation treatment cavity; The light wave device module is configured to irradiate the granular materials moving along the granular material flow channel and into the light irradiation processing cavity, so as to remove static electricity from the granular materials; wherein the light wave emitted by the light wave device module ionizes the air around the granular materials.

[0007] Optionally, the light wave device module comprises a first light wave device and / or a second light wave device. The first light wave device is configured to emit first light waves; the wavelength of the first light waves ranges from 0.1 nm to 10 nm. The second light wave device is configured to emit second light waves; the wavelength of the second light waves ranges from 10 nm to 400 nm.

[0008] Optionally, the light wave device module is configured to select the power of the light waves emitted by the light wave device module according to the flow rate of the granular materials. The light wave device module is further configured to select the frequency of the light waves emitted by the light wave device module according to the environment of the granular materials and the characteristics of the granular materials.

[0009] Optionally, the leakage amount of the light waves outside the light irradiation processing cavity meets a preset standard; or, The shell of the granular material purification device body is a light-proof shell.

[0010] Optionally, the granular material flow channel comprises an inclined chute. The inclination angle of the chute is adjustable, so as to adjust the moving speed of the granular materials.

[0011] Optionally, the granular material purification device for removing static electricity from granular materials further comprises a interlocking safety device. The interlocking safety device is configured to allow the light irradiation processing cavity to be opened only after the light wave device module is closed.

[0012] Optionally, the number of the light wave device modules is at least one.

[0013] Optionally, when the number of the light wave device modules is multiple, the setting positions of different light wave device modules are different.

[0014] Optionally, the granular material purification device body further comprises a granular material inlet and a granular material outlet. The granular material flow channel is configured to guide the granular materials to move from the granular material inlet to the granular material outlet.

[0015] In a second aspect, the present application provides a method for removing static electricity from granular materials, which is applied to the granular material purification device for removing static electricity from granular materials as described above, and the method comprises: After the granular material enters the main body of the granular material purification equipment, the granular material flow channel of the main body of the granular material purification equipment guides the movement of the granular material. After the granules move into the light treatment cavity, the light wave device module irradiates the moving granules to remove static electricity from them; wherein, the light waves emitted by the light wave device module ionize the air around the granules.

[0016] This invention employs the aforementioned technical solution to provide a pellet purification device for removing static electricity from pellets, comprising: a pellet purification device body, a light wave device module, and a light treatment cavity; both the light wave device module and the light treatment cavity are disposed within the pellet purification device body; the pellet flow channel of the pellet purification device body passes through the light treatment cavity; the light wave device module is used to irradiate the pellets moving along the pellet flow channel and entering the light treatment cavity, thereby achieving static electricity removal treatment of the pellets; wherein, the light waves emitted by the light wave device module ionize the air surrounding the pellets. Based on this, since the ions generated by ionizing the air through light neutralize the static electricity carried by the pellets, this invention does not produce harmful substances such as ozone, making it safe and environmentally friendly; furthermore, the non-contact light radiation treatment method enables this invention to efficiently remove static electricity from pellets. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a particle purification device for removing static electricity from particle materials according to an embodiment of the present invention; Figure 2 This is a schematic diagram of another particulate matter purification device for removing static electricity from particulate matter provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of another particulate matter purification device for removing static electricity from particulate matter provided in an embodiment of the present invention; Figure 4 This is a schematic flowchart of a method for removing static electricity from particulate materials according to an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] Figure 1 This is a schematic diagram of a particle purification device for removing static electricity from particle materials according to an embodiment of the present invention. Figure 1 As shown, this equipment includes: the main body of the granular material purification equipment, and the light wave equipment module 5 ( Figure 1 (Taking the example of an optical wave device module with a quantity of 1 as an example) and the light processing cavity 4.

[0021] The main body of the pellet purification equipment includes a pellet inlet 1, a pellet outlet 2, a pellet flow channel 3, and an air inlet ( Figure 1 (Not shown in the image), impurity discharge port 6, and shell 7. The pellet flow channel 3 is used to guide the pellets from the pellet inlet 1 to the pellet outlet 2.

[0022] Both the light wave equipment module 5 and the light treatment cavity 4 are located inside the granular material purification equipment.

[0023] The particle flow channel 3 of the particle purification equipment body passes through the light treatment chamber 4. That is, the light treatment chamber 4 overlaps with part or all of the particle flow channel 3. Figure 1 (The example given is the overlap between the light treatment cavity 4 and part of the particle material flow channel 3).

[0024] The light wave device module 5 is used to irradiate the granules moving along the granule flow channel 3 and entering the light treatment chamber 4 to remove static electricity from the granules. The light waves emitted by the light wave device module ionize the air surrounding the granules, generating a large number of positive and negative ions. These ions can neutralize the static charge carried by the granules, achieving the purpose of static elimination. Therefore, after a period of irradiation, the static electricity carried by the granules will be reduced or eliminated. Because the ions are densely generated around the granules, the neutralization reaction path is extremely short, resulting in very high efficiency.

[0025] Under normal operating conditions, granular material enters the granular material purification equipment through granular material inlet 1 and moves along the granular material flow channel 3. After passing through the light treatment chamber 4, the static electricity carried by the granular material is reduced or eliminated. Since many dust impurities in the granular material adhere to it by electrostatic attraction, reducing or eliminating the static electricity in the granular material can greatly separate the dust impurities from the granular material. The airflow entering through the air inlet will discharge the separated dust impurities out of the equipment through the impurity discharge port 6. It should be noted that the air inlet, impurity discharge port, and airflow generation structure are existing structures in granular material purification equipment, that is, the air inlet, impurity discharge port, and airflow generation structure are existing technologies, therefore, they will not be described in detail here.

[0026] In this embodiment of the invention, the optical wave device module includes a first optical wave device and / or a second optical wave device.

[0027] The first optical wave device is used to emit a first optical wave; the wavelength of the first optical wave is in the range of 0.1 nm to 10 nm.

[0028] The second optical wave device is used to emit a second optical wave; the wavelength of the second optical wave is in the range of 10nm to 400nm.

[0029] Considering that the effect of light on reducing or eliminating static electricity in granular materials varies with light intensity, and that there is a positive correlation between light intensity and the static electricity removal effect of granular materials, in this embodiment of the invention, the light wave device module has the function of adjusting the power and frequency of its emitted light waves.

[0030] In a specific example, the light wave device module can adjust its emitted light power according to the user's power adjustment settings. This allows the user to set the emitted light power based on the severity of electrostatic discharge in the granules being processed, offering high flexibility and versatility. For instance, for a batch of granules with weak electrostatic discharge, the power can be reduced to 50% of the rated power, which still meets the processing requirements while significantly saving energy and extending the lifespan of the light wave device module. Conversely, for granules with extremely strong electrostatic discharge, the power can be adjusted to 100% of the rated power to ensure a sufficient concentration of ions for neutralization.

[0031] Furthermore, the optical wave device module can adjust the frequency of its emitted light waves according to the user's frequency adjustment operation. This allows the user to set the optimal ionization frequency of the emitted light waves based on the gas environment of the granular material (such as a nitrogen-protected environment), resulting in high flexibility and versatility.

[0032] In another specific example, the light wave device module can select the power of its emitted light waves based on the flow rate of the granular material; furthermore, it can select the frequency of its emitted light waves based on the environment and characteristics of the granular material. The light wave device module can be equipped with a solid flow meter to obtain the flow rate of the granular material. Additionally, the light wave device module can also include an input module through which the user inputs the environment and characteristics of the granular material.

[0033] Considering the positive correlation between the duration of light irradiation on the granules and the electrostatic removal effect of the granules, in this embodiment of the invention, the granule flow channel includes an inclined slide. The inclination angle of the slide can be manually adjusted by the user to adjust the movement speed of the granules, thereby adjusting the duration of light irradiation on the granules.

[0034] In addition, the installation position of the light wave device module 5 will also affect the duration of light wave irradiation on the granular material. Figure 2 This is a schematic diagram of another particulate matter purification device for removing static electricity from particulate matter provided in an embodiment of the present invention. Figure 1 and Figure 2 As shown, the optical wave device module 5 is installed at the top and middle of the housing 7, respectively. Figure 1 and Figure 2 It is easy to see that the optical wave device module 5 is installed in the middle of the housing 7. Figure 2 When the light wave is installed at the top of the housing 7 (as shown), the duration of light wave irradiation on the granular material is longer than when it is installed at the top of the housing 7. It should be noted that those skilled in the art can also place the light wave device module 5 in other positions within the housing 7 according to actual needs, and this invention does not specifically limit this.

[0035] Considering that the design of the granular material purification equipment must strictly adhere to health, safety, and environmental management system requirements during the process of reducing or removing static electricity from granular materials by light wave irradiation, namely, strictly controlling the leakage of light waves, in this embodiment of the invention, the light treatment chamber is designed to block light as much as possible to prevent light wave leakage, ensuring that the leakage of light waves outside the light treatment chamber meets preset standards; alternatively, the shell of the granular material purification equipment body is an opaque shell. This achieves strict control of light wave leakage, creating a safe and healthy working environment for operators.

[0036] In this embodiment of the invention, the granular material purification equipment for removing static electricity from granular materials may further include: an interlocking safety device.

[0037] The interlocking safety device is configured to allow the opening of the light processing cavity or the equipment's viewing window / door only after the light wave equipment module has been shut down. This effectively prevents safety risks arising from operator error during equipment operation.

[0038] In this embodiment of the invention, the number of optical wave device modules is at least one.

[0039] When there are multiple optical wave device modules, the different optical wave device modules are set in different locations.

[0040] In a specific example Figure 3 This is a schematic diagram of another particulate matter purification device for removing static electricity from particulate matter provided in an embodiment of the present invention. Figure 3 As shown, this granular material purification equipment is similar to... Figure 1 The pellet purification equipment shown has the same function, the difference being that... Figure 3 In the granular material purification equipment shown, there are 4 light wave equipment modules 5, the granular material flow channel 3 is a double-sided granular material flow structure, and the light treatment cavity 4 overlaps with part of the granular material flow channel 3.

[0041] Based on a general inventive concept, the present invention also provides a method for removing static electricity from particulate materials, which is applied to the particulate material purification equipment for removing static electricity from particulate materials as described above. Figure 4 This is a schematic flowchart of a method for removing static electricity from particulate materials according to an embodiment of the present invention. Figure 4 As shown, this process includes: Step 401: After the granular material enters the main body of the granular material purification equipment, the granular material flow channel of the main body of the granular material purification equipment guides the movement of the granular material.

[0042] Step 402: After the granules move into the light treatment chamber, the light wave equipment module irradiates the moving granules to remove static electricity from the granules; wherein, the light waves emitted by the light wave equipment module ionize the air around the granules.

[0043] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0044] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means at least two.

[0045] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A granular material purification apparatus for removing static electricity from granular material, characterized by comprising: The particle purification device comprises: a particle purification device body, a light wave device module, and a light irradiation processing cavity; the light wave device module and the light irradiation processing cavity are arranged in the particle purification device body; a particle flow channel of the particle purification device body passes through the light irradiation processing cavity; the light wave device module is configured to irradiate particles moving along the particle flow channel and into the light irradiation processing cavity to remove static electricity from the particles; the light wave device module emits light waves to ionize air around the particles.

2. The particulate cleaning apparatus of claim 1, wherein, The light wave device module comprises a first light wave device and / or a second light wave device; the first light wave device is configured to emit first light waves with a wavelength ranging from 0.1 nm to 10 nm; the second light wave device is configured to emit second light waves with a wavelength ranging from 10 nm to 400 nm.

3. The pellet destaticizing apparatus according to claim 1 or 2, wherein The light wave device module is configured to select a power of the emitted light waves according to a flow rate of the particles; The light wave device module is further configured to select a frequency of the emitted light waves according to an environment of the particles and characteristics of the particles.

4. The particulate detergent destaticizing apparatus according to claim 1, wherein The amount of light wave leakage outside the light irradiation processing cavity meets a preset standard; or The shell of the particle purification device body is a lightproof shell.

5. The particulate detergent destaticizing apparatus according to claim 1, wherein The particle flow channel comprises an inclined chute; The inclination angle of the chute is adjustable to adjust the moving speed of the particles.

6. The particulate detergent destaticizing apparatus according to claim 1, wherein The particle purification device further comprises: an interlocking safety device; The interlocking safety device is configured to allow the light irradiation processing cavity to be opened only after the light wave device module is turned off.

7. The particulate detergent destaticizing apparatus according to claim 1, wherein The number of the light wave device modules is at least one.

8. The particulate detergent destaticizing apparatus according to claim 7, wherein When the number of the light wave device modules is more than one, the different light wave device modules are arranged at different positions.

9. The particulate detergent destaticizing apparatus according to claim 1, wherein The particle purification device body further comprises a particle inlet and a particle outlet; The particle flow channel is configured to guide the particles to move from the particle inlet to the particle outlet.

10. A method of removing static electricity from granular material, characterized by, The method for removing static electricity from particles is applied to the particle purification device for removing static electricity from particles according to any one of claims 1 to 9, comprising: After the particles enter the particle purification device body, the particle flow channel of the particle purification device body guides the particles to move; After the particles move to the light irradiation processing cavity, the light wave device module irradiates the moving particles to remove static electricity from the particles; the light wave device module emits light waves to ionize air around the particles.

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