A high-efficiency material cleaning device and a material cleaning method

Abstract

This invention discloses a high-efficiency material cleaning device and method. The high-efficiency material cleaning device includes a rotating chamber and a steam supply unit. The rotating chamber includes a material inlet, tilting blades, and a filter screen. The material inlet is used for feeding and discharging materials into and out of the rotating chamber. The tilting blades are located inside the rotating chamber and are used to control the tilting direction of the materials within the rotating chamber during rotation. The filter screen is used to screen materials and dirt within the rotating chamber. The steam supply unit provides cleaning steam to the rotating chamber, allowing the materials to be cleaned under the combined action of the rotating chamber and the cleaning steam. This invention achieves the advantages of high cleanliness, minimal nutrient loss, and good taste in dry-cleaned materials.

Description

[Technical Field]

[0001] This invention relates to kitchen appliances, and more particularly to a high-efficiency material cleaning device and a method for material cleaning. [Background Technology]

[0002] At the beginning of cooking, the ingredients often need to be pre-treated. To achieve automated cooking, existing cooking appliances have the function of automatically cleaning materials. Currently, the cleaning methods of cooking appliances can be divided into water washing and dry cleaning. The water washing process generally involves conveying the materials to the cleaning chamber, and then introducing water into the cleaning chamber to clean the materials. In order to ensure that the water and materials can fully contact each other, a stirring device is often set up. During the cleaning process, dirt and dust on the surface of the materials will be discharged with the water, thus achieving the purpose of cleaning. The dry cleaning process does not involve water. It mainly uses the mutual friction between materials to remove dirt and dust from the surface of the materials, thus achieving the purpose of cleaning.

[0003] Dry cleaning has some advantages that water washing cannot achieve. While water washing can ensure the cleanliness of materials, it also results in significant loss of nutrients from the surface of the food. Some water-soluble substances will be lost with the water, making it impossible to lock in the nutrients of the food. Dry cleaning can avoid this loss of nutrients. However, judging from the current cleaning effect of dry cleaning of cooking utensils, it is still far from achieving the cleanliness of water washing, which will affect the taste of the food. [Summary of the Invention]

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-efficiency material cleaning device and a material cleaning method, so that the cleaning effect of dry cleaning is more prominent and the taste of food is improved.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A high-efficiency material cleaning device includes a rotating chamber and a steam supply unit. The rotating chamber includes a material inlet, tilting blades, and a filter screen. The material inlet is used for feeding and discharging materials into and out of the rotating chamber. The tilting blades are disposed inside the rotating chamber and are used to control the tilting direction of the materials in the rotating chamber when the rotating chamber rotates. The filter screen is used to screen materials and dirt in the rotating chamber. The steam supply unit provides cleaning steam to the rotating chamber so that the materials are cleaned under the combined action of the rotating chamber and the cleaning steam.

[0007] In the above-mentioned high-efficiency material cleaning device, the cleaning water vapor is a medium containing water vapor, which can be liquid water particles or gaseous water molecules condensed at a predetermined temperature.

[0008] In the above-mentioned high-efficiency material cleaning device, the predetermined temperature is the boiling point of water, and the cleaning water vapor includes gaseous water molecules at the boiling point temperature and liquid water particles formed by the condensation of gaseous water molecules at the boiling point temperature.

[0009] In the aforementioned high-efficiency material cleaning device, the steam supply unit provides cleaning water and steam to the rotating chamber through the steam supply port.

[0010] In the above-mentioned high-efficiency material cleaning device, the high-efficiency material cleaning device also includes a housing, and the rotating chamber is disposed inside the housing; a material window is opened on one side of the housing, and the material window is disposed opposite to the material inlet.

[0011] In the above-mentioned high-efficiency material cleaning device, the high-efficiency material cleaning device further includes an inlet and outlet channel, which is disposed on the material window. The inlet and outlet channel is provided with an axial steam supply port connected to the material window, and the axial steam supply port supplies air in the axial direction of the rotating chamber.

[0012] In the aforementioned high-efficiency material cleaning device, the inlet and outlet channels are also provided with a tangential steam inlet connected to the material window, and the tangential steam inlet supplies air in the tangential direction of the material window.

[0013] In the above-mentioned high-efficiency material cleaning device, the high-efficiency material cleaning device also includes an air extraction device, and the steam supply unit supplies steam when the air extraction device is in operation.

[0014] A method for cleaning materials using any of the above-described high-efficiency material cleaning devices includes the following steps:

[0015] S1: Add material to the rotary chamber;

[0016] S2: Supply cleaning water vapor to the rotating chamber and control the turning direction of the material by turning blades. The material is cleaned by the combined action of the rotating chamber and the cleaning water vapor.

[0017] S3: Enter the material feeding stage and complete the cleaning.

[0018] In the above-described material cleaning method, step S2 includes:

[0019] Cleaning steps: Supply cleaning water vapor to the rotating chamber for a predetermined time, and control the air extraction device to extract air within the predetermined time;

[0020] Drying step: After a predetermined time, the steam supply unit stops supplying steam, and the air extraction device extracts the remaining cleaning moisture from the inside of the rotating chamber to dry the material.

[0021] The beneficial effects of this invention are:

[0022] This invention proposes a high-efficiency material cleaning device. To improve the cleanliness of materials and lock in nutrients, dry cleaning can be performed through a rotating chamber. During the rotation of the chamber, the direction of material tumbling within the chamber can be controlled by rotating blades, allowing for material discharge or retention for continuous tumbling. During this continuous tumbling, the materials are fully rotated, and the friction between materials achieves grinding and polishing of the material surface, removing harmful substances and dust. To achieve a water-washing effect, this invention incorporates a steam supply unit on top of the rotating chamber. This unit provides cleaning steam to the rotating chamber. During the tumbling process, the material surface comes into full contact with the cleaning steam. Some of the dust, harmful substances, and other impurities adhering to the material surface will swell and soften under the moisture of the steam, causing them to lift off. This reaction promotes the detachment of the impurities. Under continuous tumbling and friction, the impurities will eventually detach from the material surface, resulting in a smoother surface and achieving a good cleaning effect. Because the cleaning process uses cleaning vapor, it does not dissolve water-soluble substances on the surface of the material like water washing, thus preventing nutrient loss and locking in the material's nutrients. In summary, this invention achieves the advantages of high cleanliness, minimal nutrient loss, and good taste in dry-cleaned materials.

[0023] In a preferred embodiment of the present invention, the cleaning water vapor is preferably a medium containing water vapor, which can be liquid water particles or gaseous water molecules condensed at a predetermined temperature. This solution is mainly an improvement based on the form of water vapor. Generally speaking, water can be divided into gaseous, liquid, and solid states, and different phase transitions will occur at different temperatures. Liquid water is classified into fog and water depending on whether it aggregates. Fog is formed by liquid water particles floating in the atmosphere and appearing visible to the naked eye, while water is formed by a large number of water particles aggregating and appearing as a flowing form. Gaseous water includes steam and water vapor. Water vapor is essentially invisible, forming gaseous water molecules that float in the atmosphere and can condense into liquid fog or water when cooled. Steam is also theoretically invisible, but since the temperature of steam is the boiling point of water, it will liquefy upon contact with room temperature, forming fog. Therefore, steam contains a portion of liquefied liquid water particles and water vapor at the boiling point temperature. The amount of water vapor that the atmosphere can store varies at different temperatures; the higher the temperature, the more water vapor the atmosphere can store. Water can also form a so-called "water mist" through some professional atomizing equipment such as nozzles, but the water particles in this water mist will be much larger than those in naturally condensed water mist, and the aggregation of the former will be more obvious.

[0024] The cleaning vapor is selected from liquid water particles or gaseous water molecules that condense at a predetermined temperature. Therefore, the size and shape of the cleaning vapor are as close as possible to the size of gaseous molecules, preventing vapor accumulation and thus avoiding excessive moisture on the material surface, which could lead to nutrient loss. Furthermore, the cleaning vapor is steam at its boiling point, including gaseous water molecules at that boiling point and liquid water particles formed by the condensation of these gaseous water molecules. Since the temperature of the cleaning vapor is close to 100 degrees Celsius (under normal atmospheric pressure), it also has a thermal expansion and contraction effect on the food. Impurities on the food surface will expand when heated, facilitating their removal. Simultaneously, the high temperature also promotes sterilization and disinfection, further improving the cleanliness of the food.

[0025] In a preferred embodiment of the present invention, based on the special structure of the rotating chamber, the steam supply unit supplies air to the rotating chamber through an axial steam inlet. The air inlet's direction is axial. Because the rotating chamber in this invention has rotating blades that control the material's turning direction, only one material inlet is needed for loading and unloading. Compared to existing technologies, using a single material inlet for loading and unloading eliminates the need for a separate cleaning channel from the inlet to the outlet, completely avoiding the material residue problem encountered in existing high-efficiency material cleaning devices during long-distance transport. This ensures the cleanliness and hygiene of the high-efficiency material cleaning device. Positioning the steam inlet in the axial direction of the rotating chamber facilitates the delivery of cleaning steam into the housing and rotating chamber, allowing the material to quickly come into contact with the cleaning steam.

[0026] In addition, the steam supply port can also supply steam into the shell along the tangential direction of the material window through the inlet and outlet channels on the material window. At this time, the steam rising into the shell will form a vortex, thereby increasing the impact on the material inside the rotating chamber and promoting the removal of dust, harmful substances and other impurities from the material surface.

[0027] In some embodiments of the present invention, the high-efficiency material cleaning device further includes an air extraction device. This device, in conjunction with the steam supply unit, prevents dust dispersion caused by steam supply, allowing impurities detached from the material surface to be easily discharged from the casing, thus improving the cleaning effect. Simultaneously, the air extraction device can also be used to promptly remove cleaning moisture, preventing it from condensing and liquefying on the food surface due to prolonged residence of cleaning moisture inside the casing and rotating chamber. This avoids excessive moisture inside the casing and rotating chamber, preventing any negative impact on the cleaning effect.

[0028] The material cleaning method proposed in this invention completes the cleaning of materials through the combined action of a rotating chamber and cleaning water vapor. Due to the participation of cleaning water vapor, the material surface will be in full contact with the cleaning water vapor. Some of the dust, harmful substances and other impurities adhering to the material surface will swell and soften under the moisture of the water vapor, and then lift off. The above reaction will promote the detachment of the above impurities. Under continuous tumbling and friction, the above impurities will eventually detach from the material surface, making the material surface smoother, thereby achieving a good cleaning effect.

[0029] In the preferred embodiment, step S2 includes a cleaning step and a drying step. These steps prevent cleaning vapor from remaining in the shell and rotating chamber for an extended period after it has been introduced. If cleaning vapor remains in the shell and rotating chamber for a long time, it will liquefy and condense, forming water droplets, which will make the material surface too wet and affect the dry cleaning effect. By controlling the supply time of cleaning vapor and controlling the extraction device to extract air within a predetermined time, dust dispersion caused by the impact of cleaning vapor during the steam supply can be avoided, and the dust can be promptly and smoothly discharged from the outside of the shell to avoid cleaning vapor residue. After the predetermined time, the steam supply unit stops supplying steam to prevent the cleaning vapor content in the rotating chamber from becoming too high. The remaining cleaning vapor is then extracted from the rotating chamber by the extraction device to dry the material, thereby removing the condensed water or vapor in a timely manner.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0031] The invention will be further described below with reference to the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of a high-efficiency material cleaning device in a specific embodiment of the present invention;

[0033] Figure 2 This is an exploded view of the high-efficiency material cleaning device in a specific embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional schematic diagram of the inlet and outlet channels in a specific embodiment of the present invention;

[0035] Figure 4 This is a three-dimensional schematic diagram of the shell in a specific embodiment of the present invention. Figure 1 ;

[0036] Figure 5 This is a three-dimensional schematic diagram of the shell in a specific embodiment of the present invention. Figure 2 ;

[0037] Figure 6 This is a three-dimensional schematic diagram of the rotating chamber in a specific embodiment of the present invention.

[0038] Figure 7 This is a cross-sectional view of the rotating chamber in a specific embodiment of the present invention;

[0039] Figure 8 This is a three-dimensional schematic diagram of the rotating chamber in a specific embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the assembly of the rotating chamber and the shell in a specific embodiment of the present invention.

Detailed Implementation Methods

[0041] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] Example 1:

[0047] In this embodiment, as Figure 1 As shown, this is a high-efficiency material cleaning device used to clean materials such as grains, beans, rice, black rice, glutinous rice, millet, corn, soybeans, red beans, and mung beans. This high-efficiency material cleaning device can be used in conjunction with cooking utensils to provide them with clean and hygienic materials. At the same time, this high-efficiency material cleaning device can also be used independently to complete the automatic cleaning of materials, saving manpower and resources.

[0048] refer to Figure 2 The high-efficiency material cleaning device in this embodiment includes a rotating chamber 100 and a steam supply unit (not shown). The rotating chamber 100 includes a material inlet, rotating blades and a filter screen. The material inlet is used for feeding and discharging materials into and out of the rotating chamber 100. The steam supply unit provides cleaning steam to the rotating chamber 100 so that the materials are cleaned under the combined action of the rotating chamber and the cleaning steam.

[0049] To further understand the cleaning principle of the materials in this embodiment and to fully grasp the innovation of this embodiment, the structure of the rotary chamber will be described in detail below with reference to the accompanying drawings:

[0050] like Figure 6 As shown, the rotary chamber 100 is provided with a cleaning chamber 101 for receiving materials, and also with a material inlet 102 for feeding and discharging materials into and out of the cleaning chamber 101. The material inlet 102 is located on the rotary chamber 100 and is connected to the cleaning chamber 101. The rotary chamber 100 is also provided with a filter screen 103 for screening materials and dirt in the cleaning chamber. The cleaning chamber 101 is provided with a flipping blade 104 for controlling the flipping direction of materials in the cleaning chamber 101 when the rotary chamber 100 rotates.

[0051] When the rotating chamber rotates in the second rotation direction, the tilting blades control the material to be discharged from the material outlet. When the rotating chamber rotates in the first rotation direction, the tilting blades control the material to move away from the material outlet 102 and cause it to continuously tumble in the cleaning chamber. In the following text, the first and second rotation directions are opposite. For example, when clockwise rotation is the first rotation direction, the second rotation direction is the reverse direction; when clockwise rotation is the first rotation direction, the second rotation direction is the counterclockwise rotation.

[0052] The high-efficiency material cleaning device of this embodiment is used for dry cleaning. During the dry cleaning process, the material in the cleaning chamber rubs against each other under the rotation of the rotating chamber, which can achieve grinding and polishing of the material surface and remove harmful substances from the material surface. The filter screen can discharge dust, dirt and other impurities out of the cleaning chamber, ensuring the cleaning effect of the material in the cleaning chamber. While removing harmful substances from the material surface, the surface quality of the material can be improved. Compared with the prior art, it greatly reduces the damage to the material and greatly preserves the nutritional components of the material itself, avoiding the possibility of water-soluble substances being washed away with water, thus achieving a good cleaning purpose.

[0053] like Figure 7 As shown, in this embodiment, the rotating chamber is cylindrical, with cylindrical sidewalls 107 and a top 105 and a bottom 106 located at both axial ends. Those skilled in the art should understand that the top 105 and bottom 106 mentioned in this embodiment should not be understood as the top and bottom along the direction of gravity. In the operation of this high-efficiency material cleaning device, its axis is horizontal or inclined. Therefore, the bottom and top here refer only to the axial direction of the rotating chamber; the two sides located along the axial direction are the top and bottom. In some alternative embodiments of this embodiment, the shape of the rotating chamber is not limited to the technical solution disclosed in this embodiment and shown in the accompanying drawings; it can also be conical or other shapes.

[0054] like Figure 6 As shown, the material inlet 102 is located at the top of the cleaning chamber 101, i.e. the front end of the rotating chamber, and is circular. The shape of the material inlet is not limited to the technical solutions disclosed in this embodiment and shown in the accompanying drawings, such as polygons, ellipses, etc. The material inlet can be connected to an external feeding device or a metering device for feeding materials into the cleaning chamber.

[0055] As shown in Figure 6, the filter screen 103 is used for screening dirt. In this embodiment, the dirt can be dust, debris, or material residue. The filter screen 103 can be directly formed on the rotating chamber or set separately on the rotating chamber. When the filter screen is directly formed on the rotating chamber, filter holes 108 can be opened on the side wall of the rotating chamber, forming the filter screen 103. In this case, the filter screen and the rotating chamber are integrally formed, requiring no bolts, screws, or other threaded fasteners for fixation, resulting in good structural integrity. When the filter screen is set separately on the rotating chamber, its filter holes are located on the screen itself. It can be fixed to the rotating chamber by welding, riveting, or detachable connection, facilitating filter screen replacement, maintenance, and cleaning, ensuring the hygiene and service life of the high-efficiency material cleaning device. This embodiment uses an integrally formed filter screen. In some alternative embodiments of this embodiment, other separate configurations are also possible. The filter holes can be grid-type, mesh-type, or mesh-type to achieve different separation effects.

[0056] like Figure 6 As shown, the tilting blade 104 is disposed in the cleaning chamber 101, as... Figure 7 As shown, the flipping blade 104 is fixed on the inner wall of the rotating chamber 100, and extends obliquely from the bottom side of the cleaning chamber 101 to the material inlet 102 side along the axis. The material inlet side is the top side of the cleaning chamber. The oblique extension means that the blade body and the axis of the rotating chamber are set at a certain angle. This angle can be a fixed angle or a variable angle. In this embodiment, the angle of the flipping blade is a fixed value, and the angle with the axis is 50°. In other embodiments, the angle can be 45°, 60°, etc., as long as the cleaning angle between the flipping blade and the axis of the rotating chamber is greater than 0 and less than 90°.

[0057] The use of inclined, extending, flipping blades limits the length and width of the rotating chamber. Assuming the blade length is L and the angle between the blade and the axis is α, the length of the rotating chamber is approximately L / cosα, and the width is approximately L / sinα. To overcome the above disadvantages, in some alternative embodiments of this example, the flipping blades can also extend spirally from the bottom of the cleaning chamber to the material inlet side along the axial direction. That is, the flipping blades are spiral blades. Spiral blades can make the axial length of the rotating chamber longer, allowing it to hold more material and improve cleaning efficiency.

[0058] like Figure 7As shown, since the tilting blades are inclined or spirally arranged, when the rotating chamber rotates, the material in the cleaning chamber will inevitably be blocked by the tilting blades, thus forcing the material to roll towards the tilting side of the tilting blades. Specifically, when the rotating chamber rotates in the first rotation direction, the tilting blades facing the bottom A side of the cleaning chamber will control the material to move away from the material inlet 102. Initially, the material remains on the cylindrical inner wall 107 of the cleaning chamber under the action of gravity. As the rotating chamber 100 rotates in the first rotation direction, the tilting blades 104 move closer to the top side of the cleaning chamber (material inlet 102). The front end of the 02 side first contacts the material, causing the material remaining on the inner wall 107 of the rotating chamber to flip onto surface A. The material on surface A will roll towards the bottom of the cleaning chamber 101, away from the material outlet 102, and then fall back onto the inner wall 107 of the cylinder under the action of gravity. When the rotating chamber 100 continues to rotate in the first rotation direction, the material will continue to flip in the cleaning chamber until a satisfactory cleaning effect is achieved. During the cleaning process, the materials rub against each other, grind and polish each other, and the generated dust, debris and material residue will be discharged from the filter holes of the filter screen. Once a satisfactory cleaning effect is achieved, the rotation direction of the rotating chamber can be changed to discharge the material. When the rotating chamber 100 rotates in the second rotation direction, the tilting blades 104 facing the top side (B-side) of the cleaning chamber will control the material discharge from the material outlet 102. Initially, the material remains on the cylindrical inner wall 107 of the cleaning chamber under the influence of gravity. As the rotating chamber rotates in the second rotation direction, the tail end of the tilting blades near the bottom of the cleaning chamber contacts the material first, causing the material remaining on the inner wall of the rotating chamber to tilt onto the B-side. The material on the B-side will then roll along the tilting blades towards the material outlet, approaching the material outlet 102, and thus be discharged from the material outlet along the B-side. If there is still material remaining in the cleaning chamber, rotation can continue until all the material in the cleaning chamber is discharged.

[0059] In this embodiment, during the rotation of the flipping blade in the first rotation direction, the material is forced to tumble towards the bottom of the cleaning chamber. To avoid the accumulation of material at the bottom during the cleaning process, which would affect the cleaning effect, a first gap 109 is provided between the tail end 1044 of the flipping blade near the bottom of the cleaning chamber and the bottom 106 of the cleaning chamber. The first gap 109 ensures that the tail end 1044 is not connected to the bottom 106 of the cleaning chamber, allowing the material reaching the bottom to return to the top 105 of the cleaning chamber through the first gap 109. Therefore, the accumulation of material during the rotation in the first rotation direction is avoided, ensuring the cleaning effect.

[0060] In this embodiment, during the rotation of the rotating chamber in the second rotation direction, in order to ensure that the material can be smoothly discharged from the material outlet and avoid material residue in the cleaning chamber, the front end 1043 of the rotating blade near the material outlet is fixedly disposed on the top 105 of the cleaning chamber. The material outlet 102 is opened on the top 105 of the cleaning chamber, and the projection 110 of the front end 1043 on the top 105 is located on the material outlet 102. Thus, after the material reaches the side of the material outlet 102, it will be smoothly discharged from the material outlet with the guiding effect of surface B. More specifically, the projection 110 of the front end of the rotating blade is located at the tangent position of the circular edge of the material outlet. Of course, in some alternative embodiments of this embodiment, the projection of the front end of the rotating blade is not limited to the situation disclosed in this embodiment and shown in the accompanying drawings, and can also be other projection positions, as long as it is located within the material outlet.

[0061] In this embodiment, the flipping blade 104 includes a first blade 1041 and a second blade 1042. The first blade 1041 and the second blade 1042 are arranged crosswise, and a first exchange area 1045 is formed between the intersection point and the material inlet 102, and a second exchange area 1046 is formed between the intersection point and the bottom side 106 of the cleaning chamber.

[0062] During the process of material tumbling in the cleaning chamber, the use of two intersecting rotating blades can improve the cleaning effect. As can be seen from the above, if... Figure 8 As shown, the front end (front fixed edge 112) of the flipping blade is fixed to the top of the cleaning chamber, and the tail end has a first gap with the bottom of the cleaning chamber. The side fixed edge 111 of the flipping blade is fixed to the inner wall of the rotating chamber. The other side of the flipping blade is a free edge 113. As can be seen from the figure, the edge fixed to the inner wall is a curved edge. When a flipping blade is set in the cleaning chamber, the other side of the flipping blade can be a curved edge or a straight edge. In order to better set two cleaning blades in the cleaning chamber, the free edge is set to a straight edge in this embodiment.

[0063] During the material cleaning process, two rotating blades rotate simultaneously with the rotating chamber. During rotation in the first direction, the A-side of the rotating blades facing the bottom of the cleaning chamber controls the material away from the material inlet. Initially, the material remains on the cylindrical inner wall of the cleaning chamber under gravity. As the rotating chamber rotates in the first direction, the front end of the fixed edge of the first blade, near the top of the cleaning chamber (the material inlet side), contacts the material first. This causes the material remaining on the inner wall of the rotating chamber to flip onto the A-side of the first blade. The material on the A-side then rolls towards the bottom of the cleaning chamber. The material moves away from the material inlet and then falls back onto the inner wall of the cylinder under the influence of gravity. During the fall, some of the material flips over the free edge and falls down, while some slides down surface A to the bottom of the cleaning chamber. The falling material enters surface A of the second blade, where it can then move away from the material inlet and be flipped and polished under the action of the second blade. The existence of the second exchange zone ensures that the material continues to move away from the material inlet. At the same time, the continuous exchange of materials in the second exchange zone intensifies the friction and polishing effect between materials, resulting in a more significant effect on cleaning stubborn stains on the surface of the material.

[0064] When the rotating chamber rotates in the second rotation direction, the B-side of the flipping blades facing the top of the cleaning chamber controls the material discharge from the material outlet. Initially, the material remains on the cylindrical inner wall of the cleaning chamber under the influence of gravity. As the rotating chamber rotates in the second rotation direction, the fixed edge of the first blade, near the bottom of the cleaning chamber, contacts the material first. This causes the material remaining on the inner wall of the rotating chamber to flip onto the B-side of the first blade. The material on the B-side then rolls along the first blade towards the material outlet, approaching it, and is discharged from the material outlet. During the discharge process, some material that has not yet reached the material outlet will fall from the free edge of the first blade. However, with the second blade, the material falling from the free edge of the first blade will fall onto the B-side of the second blade and continue to roll towards the material outlet under the action of the second blade until it reaches the material outlet. The first exchange zone avoids the risk of material on the first blade that is about to reach the material outlet falling back onto the inner wall of the rotating chamber, thus improving discharge efficiency.

[0065] like Figure 7 As shown, the width of the first exchange zone 1045 along the axis is smaller than the width of the second exchange zone 1046 along the axis. This allows the material falling back into the second exchange zone 1046 as much as possible when the rotating chamber rotates in the first rotation direction, keeping it away from the material outlet and achieving continuous cleaning of the material. At the same time, when the rotating chamber rotates in the second rotation direction, it can minimize the possibility of some material that is about to reach the material outlet but falls back from the free side to the inner wall of the rotating chamber, ensuring complete material discharge.

[0066] In some alternative embodiments of this example, the main body of the flipping blade may have a certain curvature extending from the bottom to the top, such as an arc-shaped A surface or B surface; setting a certain curvature can improve the flipping efficiency of the flipping blade, so that the material can be flipped smoothly onto the A surface or B surface.

[0067] In this embodiment, the cleaning chamber is equipped with rotating blades that can control the material turning direction. When the rotating chamber rotates in the first rotation direction, the material moves away from the material outlet and continues to turn in the cleaning chamber. When the rotating chamber rotates in the second rotation direction, the material can be controlled to be discharged from the material outlet. Therefore, the high-efficiency material cleaning device in this embodiment can realize the possibility of feeding and discharging materials through the same material outlet. Compared with the prior art, feeding and discharging materials through the same material outlet eliminates the need to set up a cleaning channel from the inlet to the outlet in this embodiment, completely avoiding the problem of material residue during the long-distance transportation of materials from the inlet to the outlet in the existing high-efficiency material cleaning devices.

[0068] In this embodiment, the material will inevitably be discharged from the material outlet when rotating in the second rotation direction under the action of the flipping blades, so it will not remain in the cleaning chamber, thus ensuring the cleanliness and hygiene of the high-efficiency material cleaning device.

[0069] Based on the disclosed solution above, this embodiment makes further innovations, as follows:

[0070] In this embodiment, to improve the cleanliness of the materials and lock in nutrients, a steam supply unit is provided on the basis of the aforementioned rotating chamber. The steam supply unit can provide cleaning steam to the rotating chamber. During the tumbling process of the rotating chamber 100, due to the participation of cleaning steam, the surface of the materials will come into full contact with the cleaning steam. Some of the dust, harmful substances and other impurities adhering to the surface of the materials will swell and soften under the moisture of the steam, and then lift up. The above reaction will promote the detachment of the impurities. Under continuous tumbling and friction, the impurities will eventually detach from the surface of the materials, making the surface of the materials smoother, thereby achieving a good cleaning effect. Since cleaning steam is provided during the cleaning process, it will not dissolve water-soluble substances on the surface of the materials like water washing, thus preventing nutrient loss and locking in the nutrients of the materials. In summary, the present invention achieves the advantages of high cleanliness, minimal nutrient loss and good taste in dry cleaning materials.

[0071] In this embodiment, the cleaning water vapor is a medium containing water vapor, which can be liquid water particles or gaseous water molecules condensed at a predetermined temperature.

[0072] Generally speaking, water exists in three natural states: gaseous, liquid, and solid, undergoing different phase transitions at different temperatures. Liquid water can be categorized into mist and water based on whether it aggregates. Mist is formed by liquid water particles floating in the atmosphere, creating a visible form, while water is formed by the aggregation of numerous water particles, creating a flowing form. Gaseous water includes steam and water vapor. Water vapor is essentially invisible, consisting of gaseous water molecules floating in the atmosphere that can condense into liquid mist or water upon cooling. Steam is theoretically also invisible, but because its temperature is the boiling point of water, it liquefies upon contact with room temperature, forming mist. Therefore, steam contains both liquefied liquid water particles and water vapor at its boiling point. The amount of water vapor that the atmosphere can store varies with temperature; the higher the temperature, the more water vapor the atmosphere can store. Water can also be atomized into "water mist" using specialized atomizing equipment such as nozzles. However, compared to naturally condensed water mist, the water particles in this mist are much larger, resulting in more pronounced aggregation in the former.

[0073] Therefore, based on the form of water vapor, the cleaning water vapor is selected to be either liquid water particles or gaseous water molecules condensed at a predetermined temperature. This ensures that the size and shape of the cleaning water vapor are as close as possible to the size of gaseous molecules, preventing water vapor accumulation and thus avoiding excessive moisture on the material surface, which could lead to nutrient loss. Furthermore, the cleaning water vapor is steam at its boiling point, including gaseous water molecules at their boiling point and liquid water particles formed by the condensation of these gaseous water molecules. Since the temperature of the cleaning water vapor is close to 100 degrees Celsius (under normal atmospheric pressure), it also has a thermal expansion and contraction effect on the food. Impurities on the surface of the food will expand when heated, which helps to remove the impurities. At the same time, the high temperature also helps to sterilize and disinfect, further improving the cleanliness of the food.

[0074] In some cases, depending on the type of material, it is also possible to use specialized atomizing equipment such as nozzles to atomize the water particles, resulting in a "water mist" that is larger and easier to aggregate.

[0075] In order to provide cleaning water vapor to the rotating chamber 100, in this embodiment, the steam supply unit provides cleaning water vapor to the rotating chamber 100 through the steam supply port, as follows:

[0076] like Figure 1 As shown, the rotating chamber 100 is disposed within the housing 200 and can rotate within the housing, such as... Figure 2As shown, the rotating chamber 100 is driven to rotate by the driving device 300. In order to facilitate installation and fixation, the rotating chamber 100 in this embodiment includes a driving plate 116 for connecting the driving device 300 and a rotating body 115. The driving plate 116 is fixedly disposed at the bottom position of the rotating body 115. After the driving plate is fixed to the rotating body, a cleaning chamber 101 is formed inside it. The driving shaft of the driving device is connected to the driving plate 116. The driving device can be a servo motor. In some alternative embodiments of this embodiment, the driving device can also be configured in other ways.

[0077] like Figure 2 As shown, the housing 200 includes a bracket 202 for fixing the drive device 300 and a dust storage body 201. The bracket 202 is fixedly installed at the bottom of the dust storage body 201. After the bracket is fixed to the dust storage body, as shown... Figure 9 As shown, a dust storage chamber 204 is formed inside. The drive shaft of the drive device can pass through the bracket to connect the drive plate. The main body of the drive device is fixed on the outside of the bracket.

[0078] like Figure 2 As shown, the housing is used to collect the dirt separated by the filter screen for easy discharge. The housing also supports the rotating chamber, and a drain port 203 is provided on the housing. Figure 3 As shown in Figure 9, correspondingly, the front end of the shell is also provided with a material window 205. The shape of the material window 205 is adapted to the shape of the material. In this embodiment, it is circular. The shape of the material window is not limited to the technical solution disclosed in this embodiment and shown in the figure. It can also be polygonal, elliptical, etc. The material window 205 is connected to the dust storage chamber. Since the rotating chamber needs to rotate, a gap will be set between the front end of the rotating chamber 100 and the front end of the shell 200 to avoid interference between the rotating chamber and the shell. The gap will not be conducive to the material entering from the material window reaching the material port of the rotating chamber smoothly. If the material falls into the gap, it will directly enter the shell. In order to deliver the material smoothly to the rotating chamber, the material is prevented from falling into the shell from the gap.

[0079] In this embodiment, as Figure 3 As shown, an inlet / outlet channel 500 is also provided at the material window 205 for loading and unloading materials from the high-efficiency material cleaning device. This inlet / outlet channel 500 is located on the material window 205. More specifically, as shown... Figure 3 The above-mentioned feeding and discharging channels include a feeding channel 501 and a discharging channel 502. The feeding direction of the feeding channel 501 is ( Figure 3 The arrow at the feed channel indicates the tangential direction of the material window 205.

[0080] In this embodiment, to improve the material conveying efficiency and effect, the feeding direction of the feeding channel is tangential to the material window. Therefore, when the material enters from the feeding channel, it will rotate along the tangential direction of the material opening (see reference). Figure 3 As indicated by the middle arrow, the material is spirally fed into the rotating chamber. Compared to feeding along the axial direction of the material window, tangential feeding effectively prevents material accumulation and incomplete conveying between the material window and the material inlet. Therefore, it minimizes the retention of residual material, making the entire conveying channel cleaner and more hygienic, preventing mold growth, and resulting in better material conveying effect and higher conveying efficiency. Simultaneously, because the material spirally enters the rotating chamber, friction occurs between materials and between the material and the shell, causing dust, harmful substances, and other impurities on the material surface to be detached, thereby improving the cleanliness of the material itself and enhancing the cleaning effect.

[0081] In this embodiment, the main body of the feeding channel extends downwards, but in some embodiments, the feeding channel can face other directions, as long as the feeding direction is tangential.

[0082] The inlet / outlet channel 500 also includes an inlet / outlet connector 503, which is detachably connected to the material window 205. The inlet channel 501 and the outlet channel 502 are respectively connected to the inlet / outlet connector 503. The inlet / outlet connector enables the inlet / outlet channel to be detachably connected to the material window for cleaning. In some embodiments, the inlet / outlet channel can also be integrally formed with the housing to save costs.

[0083] Due to the special structure of the rotary chamber, the inlet / outlet channel is equipped with an axial steam inlet 601 connected to the material window. The axial steam inlet 601 supplies air to the rotary chamber in the axial direction. Since the rotary chamber in this invention has rotating blades that control the material's turning direction, only one material inlet is needed for loading and unloading. Compared to existing technologies, using a single material inlet for both inlet and outlet eliminates the need for a separate cleaning channel from the inlet to the outlet, completely avoiding the material residue problem encountered in existing high-efficiency material cleaning devices during long-distance transport. This ensures the cleanliness and hygiene of the high-efficiency material cleaning device. Positioning the steam inlet in the axial direction of the rotary chamber allows for convenient delivery of cleaning steam into the shell and rotary chamber, enabling the material to quickly come into contact with the cleaning steam.

[0084] In some embodiments, a tangentially configured steam inlet 602 can be used to supply steam in the tangential direction of the material window. The steam inlet can also supply steam into the housing along the tangential direction of the material window through the material inlet / outlet channel on the material window. At this time, the steam rising into the housing will form a vortex, thereby increasing the impact on the material inside the rotating chamber and promoting the removal of dust, harmful substances and other impurities from the material surface.

[0085] In order to enable the material to rotate tangentially in the inlet and outlet channels and smoothly spiral into the material window, the inlet / outlet connector 503 includes an arc-shaped inner wall 506. One side inner wall 507 of the inlet channel 501 is tangential to the arc-shaped inner wall 506. When the material reaches the inlet / outlet connector along the inlet channel, under the action of the arc-shaped inner wall, the material will rotate tangentially in time and spirally enter the rotating chamber. The arc-shaped inner wall can be a circular arc surface or other arc shapes.

[0086] The feeding channel 501 forms a feeding port 504 at the arc-shaped inner wall 506, and the discharging channel 502 forms a discharging port 505 at the arc-shaped inner wall 506. To ensure that the material discharged from the material window can smoothly enter the discharging channel from the discharging port and be discharged along with the main body of the discharging channel, and to prevent material from falling into the feeding channel during discharge, the height of the feeding port 504 is higher than the height of the discharging port 505. Therefore, the discharged material will not reach the feeding port, thus preventing the discharged material from falling into the feeding channel.

[0087] In this embodiment, since the main body of the feeding channel extends downward, an air extraction device is also required. The rotating chamber and the shell have been described in detail above. It can be seen that the supply and discharge of materials in this embodiment are both carried out through a window. Based on this, if the air extraction device is not working or is not installed, negative pressure will not be formed inside the shell, and airflow will not be generated in the material inlet or material window. At this time, when feeding is required, the rotating chamber should maintain the first rotation direction, and when discharging is required, the rotating chamber should switch to the second rotation direction in order to discharge the material in the rotating chamber.

[0088] The above-mentioned feeding and discharging methods mean that material can only be transported by gravity. Therefore, it is impossible to transport material in the storage bin that is lower than the material window or material opening to the rotary chamber. In order to solve this problem and improve feeding efficiency, this embodiment is equipped with an air extraction device at the drain port of the shell, so as to overcome gravity and transport material.

[0089] Specifically:

[0090] In this embodiment, as Figure 2As shown, under the action of the suction device 400, the inlet and outlet channel 500 will also be in a negative pressure state. At this time, the inlet and outlet device will draw the material into the high-efficiency material cleaning device through the generated negative pressure. When the suction device stops working, the inlet and outlet device will be in a non-negative pressure state, and the high-efficiency material cleaning device can discharge the material outward under this non-negative pressure state.

[0091] More specifically, such as Figure 3 The above-mentioned feeding and discharging channels include a feeding channel 501 and a discharging channel 502. The main body of the feeding channel extends downward, and the main body of the discharging channel extends downward. Under negative pressure, the material is fed into the material window 205 along the feeding channel 501 by the negative pressure. Under non-negative pressure, the material discharged from the material window 205 is discharged along the discharging channel 502 by gravity.

[0092] The main body of the feeding channel extends downwards. Under negative pressure, the material is fed into the material window along the feeding channel. This prevents incomplete material conveying in the main body of the feeding channel because the downward extension forces the material to overcome gravity to reach the material window. When the negative pressure is released, the material remaining in the main body of the feeding channel falls back into the storage component under gravity, thus preventing residue from forming in the main body. This keeps the main body of the feeding channel clean and hygienic, ensuring good conveying effect and efficiency.

[0093] In addition, the discharge direction of the discharge channel is tangential to the material window (e.g., Figure 3 As indicated by the arrow in the discharge channel, under the operation of the suction device, external air can enter along the discharge channel under negative pressure and be drawn tangentially into the material window. The tangentially entering airflow will form a spiral vortex. Under the action of the spiral vortex, the material entering tangentially from the feed channel will be less likely to stay between the material window and the material inlet, and will more easily enter the rotating chamber, improving the material conveying efficiency. At the same time, the formed spiral vortex will impact the material, further increasing friction and improving the cleaning effect.

[0094] like Figure 3 As shown, in order to prevent the material cut into the feed channel from falling into the discharge channel when passing through the discharge channel, the discharge channel and the feed channel are tangent to the arc-shaped inner wall in the same direction of rotation. When the material passes through the discharge port on the arc-shaped inner wall, the rotation direction of the material will be opposite to the discharge direction of the discharge channel, thereby preventing the material that is rotating in the feed-discharge joint from falling into the discharge channel.

[0095] In this embodiment, the inlet and outlet channels, combined with the suction device, can overcome gravity to feed materials into the high-efficiency material cleaning device. Simultaneously, combined with the feature of the rotating chamber described in Embodiment 1, which allows for feeding and discharging through the same material inlet, it enables the integration of the inlet and outlet channels. During discharge, the material falls under the influence of gravity. Therefore, as... Figure 3 As shown, the discharge channel 502 should be set downwards or diagonally downwards. The downward or diagonally downward-set discharge channel can be connected to the feed channel. Since the feed channel 501 uses negative pressure to add materials, it can be set in either direction without having to set the feed channel 501 upwards to use gravity to allow the materials to enter the rotating chamber. The feed channel 501 and the discharge channel 502 can be interconnected without the need for a partition between them. During feeding, since the feed channel 501 and the discharge channel 502 are necessarily connected to the material window 205, when the exhaust device is working, both the discharge channel 501 and the feed channel 502 are under negative pressure. The outside air will flow along the discharge channel and the feed channel. At this time, the material sucked in from the feed channel will not fall into the discharge channel when it passes through the discharge channel, because there is an airflow from the outside to the material window in the discharge channel, which prevents the material from falling. Therefore, the material can only enter the material window.

[0096] As can be seen from the embodiment, the flipping blades can control the material to be discharged from the material outlet when the rotating chamber rotates in the second rotation direction, and can control the material to move away from the material outlet and continuously flip it in the cleaning chamber when the rotating chamber rotates in the first rotation direction. Because an air extraction device is installed, a pressure difference exists between the housing and the rotating chamber and the outside environment when the air extraction device is working. Therefore, outside air will continuously flow into the housing and the rotating chamber from the material outlet. Even when the rotating chamber rotates in the second rotation direction, the incoming airflow will prevent the material from being discharged from the material outlet and the material window. Therefore, after installing the air extraction device, the rotating chamber can continuously rotate in the second rotation direction. At this time, when the air extraction device is working, the material in the cleaning chamber will continuously flip, rise, rub, and polish. When the air extraction device stops working, due to the disappearance of the airflow and the rotation of the rotating chamber in the second rotation direction, the material will be discharged from the material outlet and the material window under the action of the flipping blades, and then discharged through the discharge channel.

[0097] In the embodiment, the rotating chamber needs to switch rotation directions to discharge materials. When the rotating chamber rotates at high speed, it is necessary to overcome the motion inertia under reverse rotation. Overcoming motion inertia at high speed is time-consuming and also has an adverse effect on the motor. The above cleaning method makes the electrical control simpler, avoids switching the rotation direction of the rotating chamber, and allows the rotating chamber to maintain a high rotation speed, thereby improving the cleaning effect and cleaning efficiency.

[0098] More specifically, such as Figure 2As shown, the air extraction device includes an air pump 401, a filter screen 403, and a dust collection box 402. The air pump 401 is fitted inside the filter screen 403, and both are then fixed inside the dust collection box 402.

[0099] This high-efficiency material cleaning device will be used in a steam rice cooker, which is a cooking appliance that uses steam as a heat source for cooking. In this solution, the steam supply unit includes a steam generator for generating steam and a steam supply connector connected to the steam supply port.

[0100] When the steam supply unit is equipped with an extraction device, it can work in conjunction with the extraction device to achieve a better cleaning effect. The steam supply unit supplies steam while the extraction device is in operation. The extraction device prevents dust dispersion caused by the steam supply unit during steam supply, allowing impurities detached from the material surface to be easily discharged from the casing, thus improving the cleaning effect. Simultaneously, the extraction device can also be used to promptly remove cleaning moisture, preventing it from remaining in the casing and rotating chamber for extended periods and condensing on the food surface. This avoids excessive moisture inside the casing and rotating chamber, preventing any negative impact on the cleaning effect.

[0101] This embodiment also proposes a method for cleaning materials using any of the above-mentioned high-efficiency material cleaning devices, including the following steps:

[0102] S1: Add material to the rotary chamber;

[0103] S2: Supply cleaning water vapor to the rotating chamber and control the turning direction of the material by turning blades. The material is cleaned by the combined action of the rotating chamber and the cleaning water vapor.

[0104] S3: Enter the material feeding stage and complete the cleaning.

[0105] The material cleaning method proposed in this embodiment cleans the material through the combined action of a rotating chamber and cleaning water vapor. With the participation of cleaning water vapor, the material surface will come into full contact with the cleaning water vapor. Some of the dust, harmful substances and other impurities adhering to the material surface will swell and soften under the moisture of the water vapor, and then lift off. The above reaction will promote the detachment of the impurities. Under continuous tumbling and friction, the impurities will eventually detach from the material surface, making the material surface smoother, thereby achieving a good cleaning effect.

[0106] In the above-described material cleaning method, step S2 includes:

[0107] Cleaning steps: Supply cleaning water vapor to the rotating chamber for a predetermined time, and control the air extraction device to extract air within the predetermined time;

[0108] Drying step: After a predetermined time, the steam supply unit stops supplying steam, and the air extraction device extracts the remaining cleaning moisture from the inside of the rotating chamber to dry the material.

[0109] In the preferred embodiment, step S2 includes a cleaning step and a drying step. These steps prevent cleaning vapor from remaining in the shell and rotating chamber for an extended period after it has been introduced. If cleaning vapor remains in the shell and rotating chamber for a long time, it will liquefy and condense, forming water droplets, which will make the material surface too wet and affect the dry cleaning effect. By controlling the supply time of cleaning vapor and controlling the extraction device to extract air within a predetermined time, dust dispersion caused by the impact of cleaning vapor during the steam supply can be avoided, and the dust can be promptly and smoothly discharged from the outside of the shell to avoid cleaning vapor residue. After the predetermined time, the steam supply unit stops supplying steam to prevent the cleaning vapor content in the rotating chamber from becoming too high. The remaining cleaning vapor is then extracted from the rotating chamber by the extraction device to dry the material, thereby removing the condensed water or vapor in a timely manner.

[0110] The preferred material for cleaning is commercially available rice. Commercially available rice is generally milled and polished, making it relatively clean. However, it is still not safe to eat without washing. On the one hand, there are many varieties of commercially available rice, and the quality of cleanliness varies, making it difficult to guarantee the cleanliness of the rice. On the other hand, rice is easily contaminated or damp during transportation, storage, and transshipment, and may be susceptible to pests, making it difficult to guarantee its cleanliness. Finally, milled and polished rice often has a large amount of starch attached to its surface. Although this starch does not inherently affect human health, if it is not washed away, it will dissolve in the rice water during cooking, making the rice water cloudy and resulting in excessive solutes, which makes the cooked rice taste unpleasant. In conclusion, consumers wash commercially available rice to ensure its cleanliness.

[0111] The apparatus and method of this embodiment are used to wash rice. Since the entire process is dry washing, it can lock in the nutrients on the surface of the rice and prevent the loss of water-soluble nutrients. Due to the action of the washing water vapor, the dust and other impurities on the surface of the rice will be moistened by the washing water vapor. Under the moistening of a small part of the water vapor, the starch will soften, curl up and gelatinize. Since the binding force between the dust and the rice grain is small, it will fall off the rice grain, making the rice grain clean and smooth. The clean rice grain will absorb water and gelatinize under the further action of water vapor. Since the molecular binding force of the rice grain is large, the gelatinized layer will not easily fall off the rice grain. Therefore, the gelatinized layer will form a "lubricant" between the rice grains. This can prevent further frictional damage to the washed rice grain under the rotation of the rotating chamber, thereby avoiding the loss of surface nutrients.

[0112] Example 2:

[0113] When it is necessary to clean the inside of the rotary chamber to remove dust, harmful substances and other impurities that have adhered to the inner surface of the rotary chamber due to dry cleaning, the cleaning water and steam can be supplied to the rotary chamber through the steam supply unit to clean it. At this time, no material is supplied to the rotary chamber, and it can be run empty.

[0114] like Figure 4 and Figure 5 As shown, in order to clean the rotating chamber itself, the high-efficiency material cleaning device of this embodiment includes a shell, a rotating chamber, a steam supply unit, and an air extraction device. The rotating chamber is disposed inside the shell and has a material inlet. The shell has a drain outlet and a material window, which are arranged opposite to the material inlet. The air extraction device is connected to the drain outlet. The steam supply unit provides cleaning steam to the rotating chamber to clean the inside of the rotating chamber. The air extraction device extracts the cleaned steam from the inside of the rotating chamber through the drain outlet.

[0115] The shell, rotating chamber, steam supply unit and air extraction device can be referred to the description of Embodiment 1, and will not be repeated in this embodiment.

[0116] By supplying cleaning steam to the rotating chamber, the interior of the chamber is cleaned, ensuring its cleanliness and preventing contamination of materials to be cleaned subsequently. When the cleaning steam comes into contact with the inner wall of the rotating chamber, dust, harmful substances, and other impurities adhering to the surface are softened and lifted by the moisture, and then discharged from the drain outlet by the negative pressure airflow, aided by the suction device. Using cleaning steam to clean the rotating chamber solves the problem of difficult cleaning. Due to the high fluidity of the cleaning steam, it can fill the entire interior of the rotating chamber, overcoming the problem of hard-to-clean corners. Compared with water cleaning, this solution is more water-efficient and avoids the problem of excessive moisture and difficulty in drying the rotating chamber. Cleaning with cleaning steam not only has a good cleaning effect but also dries quickly, preventing the possibility of mold growth inside the rotating chamber due to difficulty in drying.

[0117] The cleaning vapor is a water vapor-containing medium, consisting of liquid water particles or gaseous water molecules condensed at a predetermined temperature. By selecting liquid water particles or gaseous water molecules condensed at a predetermined temperature, the size and shape of the cleaning vapor are made as close as possible to the size of gaseous molecules, preventing water vapor accumulation and thus avoiding excessive moisture on the rotating chamber surface, which would hinder drying. Furthermore, the cleaning vapor is steam at its boiling point, including gaseous water molecules at their boiling point and liquid water particles formed by the condensation of these gaseous water molecules. Since the temperature of the cleaning vapor is close to 100 degrees Celsius (under normal atmospheric pressure), it also has a thermal expansion and contraction effect on impurities. Impurities on the inner surface of the rotating chamber will undergo thermal expansion upon heating, which facilitates their removal. Simultaneously, the high temperature also promotes sterilization and disinfection, further improving the cleanliness of the rotating chamber cleaning process.

[0118] The high-efficiency material cleaning device further includes an inlet and outlet channel, which is disposed on the material window. The inlet and outlet channel is provided with an axial steam inlet 601 that communicates with the material window, and the axial steam inlet 601 supplies air in the axial direction of the rotating chamber. The inlet and outlet channel can be referred to the description in the previous embodiment, and will not be repeated in this embodiment.

[0119] In this embodiment, steam can also be supplied to the rotating chamber through the axial steam supply port 601 described in Embodiment 1, thereby making it easier to send the cleaning steam into the rotating chamber and keep the interior of the rotating chamber in contact with the cleaning steam as soon as possible.

[0120] In some embodiments, a radial steam inlet (not shown in the figure) is also provided on the outer side of the housing. The radial steam inlet supplies steam in the radial direction of the rotating chamber and the steam supply direction is towards the filter screen. The filter screen can be cleaned through the radial steam inlet to remove dirt remaining in the filter screen mesh and ensure the cleanliness of the filter screen.

[0121] Example 3:

[0122] When it is necessary to clean the inner wall of the shell to remove dust, harmful substances and other impurities that have adhered to the inner surface of the shell due to dry cleaning, the steam supply unit can be used to supply cleaning water and steam to the rotating chamber to clean it. At this time, no material is being cleaned in the rotating chamber, and it can be rotated or not.

[0123] like Figure 4 , 5As shown, in order to clean the shell itself, the high-efficiency material cleaning device of this embodiment includes a shell, a rotating chamber, a steam supply unit, and an air extraction device. The rotating chamber is disposed inside the shell. The shell is provided with a cleaning port 603 and a drain port. The air extraction device is connected to the drain port. The steam supply unit provides cleaning steam to the shell through the cleaning port 603 to clean the inside of the shell. The air extraction device extracts the cleaned steam from the inside of the shell through the drain port.

[0124] The shell, rotating chamber, steam supply unit and air extraction device can be referred to the description of Embodiment 1, and will not be repeated in this embodiment.

[0125] By supplying cleaning vapor into the shell, the interior of the shell is cleaned, ensuring its cleanliness and preventing contamination of subsequent materials. When the cleaning vapor comes into contact with the inner wall of the shell, dust, harmful substances, and other impurities adhering to the shell surface will swell and soften under the moisture of the vapor, causing them to lift off. With the help of the suction device, these impurities will be discharged from the drain port by the negative pressure airflow. Using cleaning vapor to clean the shell solves the problem of difficult shell cleaning. Due to the high fluidity of the cleaning vapor, it can fill the entire interior of the shell, overcoming the problem of difficult-to-clean hard-to-reach areas. Compared to using water for cleaning, this solution is more water-efficient, avoiding the problem of excessive moisture and difficulty in drying the shell. Cleaning with cleaning vapor not only provides excellent cleaning results but also dries quickly, preventing the possibility of mold growth inside the shell due to difficulty in drying.

[0126] The cleaning vapor is a water vapor-containing medium, consisting of liquid water particles or gaseous water molecules condensed at a predetermined temperature. By selecting liquid water particles or gaseous water molecules condensed at a predetermined temperature, the size and shape of the cleaning vapor are made as close as possible to the size of gaseous molecules, preventing water vapor accumulation and thus avoiding excessive moisture on the shell surface, which would hinder drying. Furthermore, the cleaning vapor is steam at its boiling point, including gaseous water molecules at their boiling point and liquid water particles formed by the condensation of these gaseous water molecules. Since the temperature of the cleaning vapor is close to 100 degrees Celsius (under normal atmospheric pressure), it also has a thermal expansion and contraction effect on impurities. Impurities on the inner surface of the shell will undergo thermal expansion upon heating, which facilitates their removal. Simultaneously, the high temperature also promotes sterilization and disinfection, further improving the cleanliness of the shell.

[0127] refer to Figure 4 , 5The housing is provided with a cleaning port 603, and the air intake direction of the cleaning port 603 corresponds to the axial direction of the rotating chamber. At this time, the rotation of the rotating chamber can promote the cleaning effect on the housing. When the cleaning water vapor enters the housing along the axial direction of the housing, the cleaning water vapor will impact the surface of the housing due to the centrifugal effect of the rotating chamber, thereby improving the cleaning effect.

[0128] The cleaning port 603 is located on the side of the housing, close to the outer wall of the housing, thus enabling better cleaning of the side of the housing. In conjunction with the rotation of the rotating chamber, the cleaning water vapor entering the rotating chamber forms a rotating airflow, thereby promoting the cleaning of the side of the housing.

[0129] like Figure 2 , 3 5. In this embodiment, a fan blade 114 is also provided on the outer side wall of the rotating chamber. When the rotating chamber rotates, the fan blade 114 rotates with the rotating chamber to generate airflow between the rotating chamber and the shell, forming a pressure difference. The fan blade and the cleaning port 603 are both located in the area between the shell and the rotating chamber to facilitate the generation of airflow in the area between the rotating chamber and the shell.

[0130] When the rotating chamber rotates, airflow is generated in the area between the rotating chamber and the shell. This airflow creates a pressure difference between the rotating chamber and the shell, forcing the air in the cleaning chamber to flow out of the shell, thereby promoting the rotation of cleaning water vapor inside the shell and achieving the separation of dirt.

[0131] The fan blades are located on the outer side wall of the rotating chamber and extend outward to form blades. The fan blades can be strip blades or spiral blades. In this embodiment, they are strip blades. The strip blades are fan blades without curvature and are arranged in a strip shape. The spiral blades are spiral blades with curvature and are arranged in a spiral shape on the outer side wall of the rotating chamber.

[0132] The steam supply unit's steam supply connector is connected to the cleaning port 603. The drain direction of the drain port is tangential to the rotation of the fan blades, facilitating the discharge of dirt along the drain port.

[0133] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A high-efficiency material cleaning device, characterized in that, The device includes a rotating chamber for dry cleaning rice and a steam supply unit. The rotating chamber includes a material inlet, rotating blades, and a filter screen. The material inlet is used for feeding and discharging materials into and out of the rotating chamber. The rotating blades are located inside the rotating chamber and are used to control the direction of material rotation within the rotating chamber as it rotates. The filter screen is used to screen materials and dirt within the rotating chamber. The steam supply unit provides cleaning steam to the rotating chamber so that the materials are cleaned under the combined action of the rotating chamber and the cleaning steam.

2. The high-efficiency material cleaning device as described in claim 1, characterized in that, The cleaning water vapor is a medium containing water vapor, which is liquid water particles or gaseous water molecules condensed at a predetermined temperature.

3. The high-efficiency material cleaning device as described in claim 2, characterized in that, The predetermined temperature is the boiling point of water, and the cleaning water vapor includes gaseous water molecules at the boiling point temperature and liquid water particles formed by the condensation of gaseous water molecules at the boiling point temperature.

4. A high-efficiency material cleaning device as described in any one of claims 1-3, characterized in that, The steam supply unit provides cleaning steam to the rotating chamber through the steam supply port.

5. The high-efficiency material cleaning device as described in claim 4, characterized in that, The high-efficiency material cleaning device also includes a housing, and the rotating chamber is disposed inside the housing; a material window is provided on one side of the housing, and the material window is disposed opposite to the material inlet.

6. The high-efficiency material cleaning device as described in claim 5, characterized in that, The high-efficiency material cleaning device also includes an inlet and outlet channel, which is located on the material window. The inlet and outlet channel is provided with an axial steam inlet that communicates with the material window and the axial steam inlet supplies air in the axial direction of the rotating chamber.

7. The high-efficiency material cleaning device as described in claim 6, characterized in that, The material inlet and outlet channel is also provided with a tangential steam inlet connected to the material window, and the tangential steam inlet supplies air in the tangential direction of the material window.

8. The high-efficiency material cleaning device as described in claim 4, characterized in that, The high-efficiency material cleaning device also includes an air extraction device, and the steam supply unit supplies steam when the air extraction device is in operation.

9. A method for cleaning materials using the high-efficiency material cleaning device according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Add material to the rotary chamber; S2: Supply cleaning water vapor to the rotating chamber and control the turning direction of the material by turning blades. The material is cleaned by the combined action of the rotating chamber and the cleaning water vapor. S3: Enter the material feeding stage and complete the cleaning.

10. The material cleaning method as described in claim 9, characterized in that, Step S2 includes: Cleaning steps: Supply cleaning water vapor to the rotating chamber for a predetermined time, and control the air extraction device to extract air within the predetermined time; Drying step: After a predetermined time, the steam supply unit stops supplying steam, and the air extraction device extracts the remaining cleaning moisture from the inside of the rotating chamber to dry the material.

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