Material cleaning system

Abstract

The utility model provides a material cleaning system, which is used for cleaning materials during feeding in a production workshop, and comprises a channel assembly, a cleaning channel is defined by the channel assembly, and the two ends of the cleaning channel are respectively provided with a feeding port and a discharging port; the conveying device is arranged in the cleaning channel, the conveying device extends out of the feeding port and the discharging port, and the conveying device is used for conveying materials into a production workshop; the sterilization device is arranged in the cleaning channel so as to sterilize the materials passing through the cleaning channel; and the negative pressure device is provided with a suction channel, the suction channel is communicated with the cleaning channel, and the negative pressure device sucks and removes foreign matters through the suction channel. According to the material cleaning system, materials can be well cleaned, it is guaranteed that the materials entering a production workshop are in a clean state, foreign matter is prevented from entering the workshop, cross contamination is avoided, and therefore the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a material cleaning system. Background Art

[0002] In the production process of cold drinks, some auxiliary materials are often used, such as packaging film, popsicle sticks, cups, lids, and secondary raw materials.

[0003] At present, the secondary materials and auxiliary materials are usually removed from the outer packaging in the unpacking room, and then the outer surface of the materials is manually disinfected before being sent to the production line for use. When the secondary raw materials and auxiliary materials are supplied from outside, there may be problems such as substandard sterilization and contamination during transportation. Dust, hair and other foreign matter carried by the auxiliary materials will enter the workshop and there is a risk of being brought into the product. In addition, manual sterilization also has the problem of cross contamination, which in turn affects product quality. Utility Model Content

[0004] In view of the above problems, the utility model provides a material cleaning system, which can better sterilize materials and remove foreign matter, avoid foreign matter from entering the workshop and causing cross contamination, thereby ensuring product quality.

[0005] The utility model provides a material cleaning system, which is used for cleaning materials when feeding in a production workshop. The material cleaning system comprises: a channel component, the channel component defines a cleaning channel, and the two ends of the cleaning channel are respectively provided with a feeding port and a discharging port; a conveying device, the conveying device is arranged in the cleaning channel, the conveying device extends from the feeding port and the discharging port respectively, and the conveying device is used for conveying materials into the production workshop; a sterilizing device, the sterilizing device is arranged in the cleaning channel to sterilize the materials passing through the cleaning channel; a negative pressure device, the negative pressure device has a suction channel, the suction channel is connected with the cleaning channel, and the negative pressure device absorbs foreign matter through the suction channel.

[0006] According to the material cleaning system of the utility model, it includes a channel component, a conveying device, a sterilization device and a negative pressure device. The material can be placed on the conveying device and enter the production workshop with the conveying device. When the conveying device passes through the cleaning channel of the channel component, the sterilization device can sterilize and disinfect the material, and the negative pressure device can absorb foreign matter such as dust and hair on the surface of the material. In this way, through the cooperation of the sterilization device and the negative pressure device, the material can be better cleaned to ensure that the material entering the production workshop is in a clean state, avoid foreign matter and impurities from entering the workshop, and cause cross contamination problems, thereby ensuring product quality.

[0007] In some embodiments, the sterilization device is disposed at the feed inlet.

[0008] In some embodiments, there are multiple sterilization devices, and the sterilization devices are symmetrically distributed on the inner walls on two opposite sides of the cleaning channel.

[0009] In some embodiments, the sterilization device includes an ultraviolet light emitting element.

[0010] In some embodiments, the negative pressure device includes: a suction piece, which is arranged on the outside of the cleaning channel and connected to at least one of the channel assembly and the conveying device; a suction tube, which defines the suction channel, one end of the suction tube is connected to the suction piece, and the other end passes through the top wall of the channel assembly and is connected to the cleaning channel.

[0011] In some embodiments, the material cleaning system also includes: a purge device, which is arranged in the cleaning channel, and the purge device is located on the downstream side of the sterilization device along the material conveying direction, and the purge device is used to purge the surface of the material to remove impurities on the surface of the material.

[0012] In some embodiments, there are multiple purge devices, and the multiple purge devices are symmetrically distributed on the inner walls on two opposite sides of the cleaning channel.

[0013] In some embodiments, the conveying device includes: a plurality of rollers arranged side by side along the conveying direction of the material, and the rollers are rotatable; a transmission chain, the transmission chain cooperates with the plurality of rollers to drive the plurality of rollers to rotate; and a driving member, the driving member cooperates with the transmission chain to drive the rollers to rotate through the transmission chain.

[0014] In some embodiments, the channel assembly includes: a first channel shell and a second channel shell, the first channel shell and the second channel shell cover are arranged on the outside of the conveying device, and are arranged and connected in sequence along the conveying direction of the material, the sterilization device is arranged on the inner side of the first channel shell, and at least part of the structure of the negative pressure device is arranged in the second channel shell.

[0015] In some embodiments, the material cleaning system further includes: a first shielding curtain and a second shielding curtain, the first shielding curtain is arranged at the feed port, the second shielding curtain is arranged at the discharge port, and the first shielding curtain and the second shielding curtain are UV protection structural parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a material cleaning system according to an embodiment of the utility model;

[0018] Figure 2 It is an exploded diagram of the material cleaning system according to an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 100-Material cleaning system;

[0021] 1-channel assembly; 11-cleaning channel; 12-first channel housing; 13-second channel housing; 14-inspection window; 15-opening and closing door;

[0022] 2- conveying device; 21- roller; 22- mounting bracket;

[0023] 3- Sterilization device;

[0024] 4-negative pressure device; 41-suction member; 42-suction tube;

[0025] 5-Purge device. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0027] In the production process of cold drinks, some auxiliary materials are often used, such as packaging film, popsicle sticks, cups, lids, and secondary raw materials. At present, secondary materials and auxiliary materials are usually removed from the outer packaging in the unpacking room, and then the outer surface of the materials is manually disinfected before being sent to the production line for use. Because secondary raw materials and auxiliary materials are supplied from outside, there may be problems such as substandard sterilization and contamination during transportation. Dust, hair and other foreign matter carried by auxiliary materials will enter the workshop and there is a risk of being brought into the product. In addition, there is a problem of cross-contamination in manual sterilization, which in turn affects product quality.

[0028] In view of this, the utility model provides a material cleaning system, including a channel component, a conveying device, a sterilization device and a negative pressure device. The material can be placed on the conveying device and enter the production workshop with the conveying device. When the conveying device passes through the cleaning channel of the channel component, the sterilization device can sterilize and disinfect the material, and the negative pressure device can remove foreign matter such as dust and hair on the surface of the material. In this way, through the cooperation of the sterilization device and the negative pressure device, the material can be better cleaned to ensure that the material entering the production workshop is in a clean state, avoid foreign matter and impurities from entering the workshop, and cause cross contamination problems, thereby ensuring product quality.

[0029] Reference below Figure 1 and Figure 2 A material cleaning system 100 according to an embodiment of the present invention is described.

[0030] Combination Figure 1 and Figure 2 The material cleaning system 100 of this embodiment can be used to clean the material when feeding into the production workshop. The production workshop can be a production workshop for food products, or a production workshop for other products with high requirements for the cleanliness of the production environment. The material can be a food auxiliary material, packaging material, secondary material, etc. The material cleaning system 100 can include: a channel component 1, a conveying device 2, a sterilizing device 3 and a negative pressure device 4.

[0031] Specifically, the channel assembly 1 defines a cleaning channel 11, and the two ends of the cleaning channel 11 respectively have a feed port and a discharge port, wherein the feed port can be located outside the production workshop. For example, the feed port can be set in a packaging removal room for removing the outer packaging of auxiliary materials, and the discharge port can be set in the production workshop, so as to facilitate the transportation of the materials removed from the outer packaging through the cleaning channel 11 of the material cleaning system 100 to the production workshop for use, and complete the sterilization and disinfection of the materials during the transportation process. Of course, the utility model does not limit this, and the setting positions of the feed port and the discharge port can be reasonably adjusted according to the specific situation during the implementation process.

[0032] The conveying device 2 can be used to convey materials into the production workshop. The conveying device 2 is arranged in the clean channel 11. For example, the conveying device 2 can be a conveyor belt, a conveyor roller, or other conveying devices 2. The conveying device 2 extends from the feed port and the discharge port respectively. In this way, it is convenient to adjust the length of the conveying device 2 so that its loading and unloading ends are distributed at appropriate positions in the site to maximize the efficiency of loading and unloading. Optionally, the channel component 1 can be a cylindrical shape with both ends open. In this case, the conveying device 2 is arranged on the inner side of the channel component 1; or, the channel component 1 can be a semi-enclosed structure, and the channel component 1 is supported on the two opposite side walls or two edges of the conveying device 2. In this case, a part of the structure of the conveying device 2 and the channel component 1 together define the clean channel 11, and the bearing surface of the conveying device 2 can serve as the bottom channel wall of the clean channel 11.

[0033] The sterilization device 3 is arranged in the cleaning channel 11 to sterilize and disinfect the materials passing through the cleaning channel 11. For example, the sterilization device 3 can be a spray sterilization device, a high-temperature sterilization device, an ultraviolet sterilization device, etc. The type of the sterilization device 3 can be reasonably selected according to the type of material, and no specific limitation is made here.

[0034] The negative pressure device 4 has a suction channel, which is connected to the cleaning channel 11. The negative pressure device 4 removes foreign matter through the suction channel. For example, the negative pressure device 4 can be used to suck out dust in the cleaning channel 11 and foreign matter such as hair on the surface of the material to prevent foreign matter from entering the production workshop with the material and causing contamination of the product. It can be understood that in order to make the foreign matter suction effect of the negative pressure device 4 better, the cleaning channel 11 can be constructed as a relatively closed environment, that is, to minimize the exposed area of ​​the feed port, the discharge port or other parts.

[0035] According to the material cleaning system 100 of the embodiment of the utility model, it includes a channel component 1, a conveying device 2, a sterilization device 3 and a negative pressure device 4. The material can be placed on the conveying device 2 and enter the production workshop with the conveying device 2. When the conveying device 2 passes through the cleaning channel 11 of the channel component 1, the sterilization device 3 can sterilize and disinfect the material, and the negative pressure device 4 can absorb foreign matter such as dust and hair on the surface of the material. In this way, through the cooperation of the sterilization device 3 and the negative pressure device 4, the material can be better cleaned to ensure that the material entering the production workshop is in a clean state, avoid foreign matter and impurities from entering the workshop, and cause cross contamination problems, thereby ensuring product quality.

[0036] In some embodiments, reference Figure 2The sterilization device 3 is arranged at the feed inlet, that is, when the material enters the cleaning channel 11 along with the conveying device 2, the sterilization device 3 first sterilizes and disinfects the material to prevent the material from contaminating other components in the cleaning channel 11, which is beneficial to ensure the cleanliness of the material and the channel component 1 itself.

[0037] In some embodiments, reference Figure 2 There are multiple sterilization devices 3, and the sterilization devices 3 are symmetrically distributed on the inner walls on both sides of the cleaning channel 11. In this way, the sterilization devices 3 can act on the material in multiple directions as much as possible to achieve a better sterilization and disinfection effect.

[0038] In some embodiments, the sterilization device 3 may include an ultraviolet light emitting element, so that the ultraviolet light in the cleaning channel 11 covers a wider range of materials, so that the sterilization device 3 has a better sterilization effect and a lower cost.

[0039] In a specific example, the ultraviolet light emitting element is an ultraviolet lamp tube, and the extension direction of the ultraviolet lamp tube is parallel to the extension direction of the cleaning channel 11 to cover as much range as possible and prolong the time that the material is exposed to ultraviolet rays, thereby further improving the sterilization effect.

[0040] In some embodiments, the material cleaning system 100 may be provided with a control device, which may include a control box, in which an indicator light is provided, and the indicator light corresponds to the ultraviolet light emitting element one by one. When any ultraviolet light emitting element fails, the indicator light goes out to facilitate quick location of the damaged ultraviolet light emitting element. Furthermore, the indicator light is an LED light, which is low in cost and reliable in function.

[0041] In some embodiments, reference Figure 1 and Figure 2 , the negative pressure device 4 may include: a suction piece 41 and a suction pipe 42. Specifically, the suction piece 41 may be disposed on the outside of the cleaning channel 11, and connected to at least one of the channel assembly 1 and the conveying device 2. For example, the suction piece 41 may be a suction fan or other device, and the suction piece 41 may be installed on the outer wall of the channel assembly 1, or may be installed on the mounting bracket 22 of the conveying device 2, or the suction piece 41 may be connected to both the channel assembly 1 and the mounting bracket. The suction pipe 42 defines a suction channel, one end of the suction pipe 42 is connected to the suction piece 41, and the other end passes through the top wall of the channel assembly 1 and is connected to the cleaning channel 11, that is, the suction port of the suction pipe 42 is located at the top of the cleaning channel 11.

[0042] In this way, impurities such as dust and hair can be smoothly sucked into the suction pipe 42, avoiding the problem that when the suction port is set at other parts of the cleaning channel 11, impurities such as dust and hair are easily encountered obstacles when flowing with the air, resulting in incomplete cleaning. In addition, the structure of the negative pressure device 4 is relatively simple and easy to implement.

[0043] Optionally, the suction piece 41 has a receiving cavity, which can be connected to the suction channel. Dust, hair and other impurities sucked from the cleaning channel 11 by the suction piece 41 can be discharged into the receiving cavity and then cleaned by the operator. This helps to ensure the cleanliness of the external environment of the cleaning channel 11.

[0044] In some embodiments, reference Figure 2 , the material cleaning system 100 may further include: a purge device 5. Specifically, the purge device 5 is disposed in the cleaning passage 11, and the purge device 5 may be disposed on the downstream side of the sterilization device 3 along the material conveying direction, and the purge device 5 is used to purge the surface of the material to remove impurities on the surface of the material. By providing the purge device 5, the purge device 5 can use wind force to blow up foreign matter such as dust and hair on the surface of the material, and then suck it out by the negative pressure device 4. In this way, the purge device 5 and the negative pressure device 4 cooperate with each other to effectively separate foreign matter such as dust and hair from the material, and discharge it from the cleaning passage 11, thereby ensuring that the material entering the production workshop maintains a high degree of cleanliness, thereby ensuring product quality.

[0045] In some embodiments, there are multiple purge devices 5, and the multiple purge devices 5 are symmetrically distributed on the inner walls on opposite sides of the cleaning channel 11. In this way, the purge devices 5 can purge the surface of the material from multiple directions to remove foreign matter on the surface of the material to the greatest extent.

[0046] In some embodiments, the purging device 5 has a plurality of blowing nozzles, which can be evenly distributed. Of course, the specific arrangement positions of the plurality of blowing nozzles can be reasonably selected according to actual needs. In this way, the purging effect can be improved, which is conducive to improving the overall cleaning effect of the material cleaning system 100.

[0047] Optionally, the purge device 5 is a plasma purge device 5, that is, the purge device 5 can blow out plasma wind to purge the surface of the material, thereby further improving the cleaning effect.

[0048] In some embodiments, the material cleaning system 100 can be configured to start the negative pressure device 4 and the purge device 5 synchronously; or, the purge device 5 is turned on after the negative pressure device 4 is started for a preset time, so as to ensure that the dust and hair blown up by the purge device 5 are effectively absorbed by the negative pressure device 4, and avoid the purge device 5 being started before the negative pressure device 4, causing the blown dust and hair to adhere to the surface of other objects.

[0049] In some embodiments, reference Figure 2 , the conveying device 2 may include a roller 21, a transmission chain and a driving member. Specifically, there are multiple rollers 21, and the multiple rollers 21 are arranged side by side along the conveying direction of the material. The rollers 21 are rotatable, and the rotation of the rollers 21 drives the material to pass through each roller 21 in sequence and convey it forward. The transmission chain is in transmission cooperation with the multiple rollers 21, and the transmission chain can drive the multiple rollers 21 to rotate synchronously. The driving member is in transmission cooperation with the transmission chain to drive the rollers 21 to rotate through the transmission chain. The driving member may be a driving motor, and preferably the driving member is a variable frequency motor, so as to facilitate the adjustment of the conveying speed of the material. The transmission chain may adopt a double-pitch roller chain, and the shaft end of the roller 21 may be provided with a toothed disc to facilitate cooperation with the transmission chain. In this way, the overall structure of the conveying device 2 is simple and reliable, and the cost is low and it is easy to implement.

[0050] In some embodiments, the roller 21 can be made of stainless steel, which has a reliable structure, low cost, avoids rust, and is easy to keep clean.

[0051] In some embodiments, the conveying device 2 may further include a mounting bracket 22 , and the mounting bracket 22 may be formed by welding profiles so that the conveying device 2 has a certain height.

[0052] Optionally, the overall width of the conveying device 2 is 500-700mm, the height is 600-900mm, and the length is 2000-4000mm. For example, the overall width of the conveying device 2 can be 500mm, 600mm or 700mm, the height can be 600mm, 700mm, 750mm, 800mm or 900mm, and the length can be 2000mm, 2500mm, 3000mm, 3250mm, 3350mm or 4000mm. Of course, the utility model does not make specific restrictions on this. The overall width, height and length of the conveying device 2 can be reasonably selected within their respective ranges according to actual needs to meet the material transportation requirements. In this way, it can be ensured that the conveying device 2 has a certain height to stay away from the ground, and also has sufficient width and length to better carry and transport materials.

[0053] In some embodiments, in combination Figure 1 and Figure 2, the channel assembly 1 may include a first channel shell 12 and a second channel shell 13. Specifically, the first channel shell 12 and the second channel shell 13 are covered on the outside of the conveying device 2, and are arranged and connected in sequence along the conveying direction of the material, the sterilization device 3 is arranged on the inside of the first channel shell 12, and at least part of the structure of the negative pressure device 4 is arranged in the second channel shell 13. For example, the ultraviolet light emitting component is arranged on the inner wall of the first channel shell 12, the suction component 41 of the negative pressure device 4 is arranged on the mounting bracket 22 of the conveying device 2, the first end of the suction pipe 42 is connected to the suction component 41, and the second end of the suction pipe 42 is passed through the top wall of the second channel shell 13 to extend into the cleaning channel 11 to suck foreign matter. In this way, the channel assembly 1 is set to a two-stage structure, which is convenient for transportation and assembly, and the overall structure is relatively simple and easy to implement.

[0054] The first channel shell 12 and the second channel shell 13 are both made of stainless steel, so that the structure is reliable, the cost is low, rust is avoided, and it is easy to keep clean.

[0055] Optionally, at least one of the first channel shell 12 and the second channel shell 13 has a side wall with an openable and closable inspection window 14 , and a switch door 15 is provided at the inspection window 14 to facilitate maintenance, inspection, manual cleaning and other operations on the structure inside the cleaning channel 11 .

[0056] In some embodiments, the material cleaning system 100 may further include: a first shielding curtain and a second shielding curtain (not shown). The first shielding curtain is arranged at the feed inlet, and the second shielding curtain is arranged at the discharge outlet. The first shielding curtain and the second shielding curtain are UV-proof structural parts. By arranging the first shielding curtain and the second shielding curtain, it is possible to prevent ultraviolet rays from irradiating the outside of the cleaning channel 11 and causing harm to the human body.

[0057] Furthermore, both the first shielding curtain and the second shielding curtain are soft curtains, which facilitates the passage of materials through the feed port and the discharge port, while ensuring the airtightness of the cleaning channel 11 when the materials pass through the feed port and the discharge port, and has a long service life.

[0058] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0059] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0060] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0061] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material cleaning system, used to clean materials when feeding in a production workshop, characterized in that: include: A channel assembly, wherein the channel assembly defines a cleaning channel, and both ends of the cleaning channel are respectively provided with a feed inlet and a discharge outlet; A conveying device, the conveying device is arranged in the cleaning channel, the conveying device extends from the feed port and the discharge port respectively, and the conveying device is used to convey materials into the production workshop; A sterilizing device, the sterilizing device is arranged in the cleaning channel to sterilize the material passing through the cleaning channel; A negative pressure device is provided with a suction channel, wherein the suction channel is communicated with the cleaning channel, and the negative pressure device sucks out foreign matter through the suction channel.

2. The material cleaning system according to claim 1, characterized in that: The sterilization device is arranged at the feed inlet.

3. The material cleaning system according to claim 2, characterized in that: There are multiple sterilization devices, and the sterilization devices are symmetrically distributed on the inner walls of the cleaning channel on both sides.

4. The material cleaning system according to any one of claims 1 to 3, characterized in that: The sterilization device comprises an ultraviolet light emitting element.

5. The material cleaning system according to any one of claims 1 to 3, characterized in that: The negative pressure device comprises: A suction member, the suction member is arranged outside the cleaning channel and connected to at least one of the channel assembly and the conveying device; A suction pipe defines the suction channel, one end of the suction pipe is connected to the suction member, and the other end passes through the top wall of the channel assembly and is connected to the cleaning channel.

6. The material cleaning system according to any one of claims 1 to 3, characterized in that: Also includes: The purge device is arranged in the cleaning channel, the purge device is located on the downstream side of the sterilization device along the material conveying direction, and the purge device is used to purge the surface of the material to remove impurities on the surface of the material.

7. The material cleaning system according to claim 6, characterized in that: There are multiple blowing devices, and the multiple blowing devices are symmetrically distributed on the inner walls on two opposite sides of the cleaning channel.

8. The material cleaning system according to any one of claims 1 to 3, characterized in that: The conveying device comprises: Roller shafts, wherein the roller shafts are arranged side by side in a plurality along the conveying direction of the material, and the roller shafts are rotatable; A transmission chain, wherein the transmission chain cooperates with the plurality of roller shafts to drive the plurality of roller shafts to rotate; A driving member is coupled with the transmission chain to drive the roller shaft to rotate through the transmission chain.

9. The material cleaning system according to any one of claims 1 to 3, characterized in that: The channel assembly includes: a first channel housing and a second channel housing, wherein the first channel housing and the second channel housing are disposed on the outside of the conveying device and are sequentially arranged and connected along the conveying direction of the material. The sterilization device is arranged on the inner side of the first channel shell, and at least a part of the structure of the negative pressure device is arranged on the second channel shell.

10. The material cleaning system according to any one of claims 1 to 3, characterized in that: Also includes: a first shielding curtain and a second shielding curtain, wherein the first shielding curtain is arranged at the feeding port, and the second shielding curtain is arranged at the discharging port, The first shielding curtain and the second shielding curtain are ultraviolet protection structural parts.

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