Multi-stage cleaning and sterilizing device for empty barrels

Abstract

The utility model relates to the technical field of edible packaging barrel treatment, in particular to a multi-stage cleaning and sterilizing device for empty barrels. According to the multi-stage cleaning and sterilizing device, through the design of the sugar dissolving tank and the collecting tank, residual sugar on the barrel wall is heated and dissolved through steam, so that the residual sugar is treated in a centralized mode, meanwhile, the situation that the residual sugar is directly brought into the barrel washing pool and pollutes water is avoided, and the cleaning efficiency is improved; by arranging the four stages of cleaning pools, the empty barrels are cleaned in a graded mode, and the cleaning efficiency and cleanliness are guaranteed; water in the cleaning pool is recycled, so that on the premise that the cleaning quality is guaranteed, the water replacement frequency is reduced, and the water use cost is reduced; by arranging the drying mechanism, water residue is avoided, by arranging the disinfection mechanism, bacterial residue of an empty barrel is avoided, and therefore the product quality is improved; through automatic control of temperature control, heating, drying, sterilization starting and stopping and the like, automatic sugar dissolving, drying, sterilization and other operations are achieved, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging barrel processing, in particular to a multi-stage cleaning and sterilization device for empty barrels. Background Art

[0002] Finished starch sugar products are primarily transported in various forms, including tank trucks and barrels. Some customers with low syrup usage opt for barreled sugar. After use, barrels need to be cleaned and sterilized to prepare for the next packaging step. Currently, empty barrels are typically cleaned with hot water, but excessive residual sugar can significantly reduce cleaning efficiency. After cleaning, some water remains inside the barrel, making sterilization impossible, which can significantly impact product quality.

[0003] The existing cleaning device has the following defects when used:

[0004] 1. Use hot water for cleaning. If there is too much residual sugar in the barrel, it will also pollute the water in the barrel washing pool, affecting the cleaning efficiency, increasing the frequency of water replacement and increasing water costs.

[0005] 2. When hot water becomes dirty, it can only be drained away and cannot be recycled, resulting in a waste of water resources.

[0006] 3. After the empty barrel is cleaned, some water will remain in the barrel. If used directly, this water will contaminate the syrup and affect the quality of food.

[0007] 4. The inside of the empty barrel cannot be thoroughly disinfected, especially the dead corners such as the inner wall of the barrel mouth, which leads to bacterial residue and affects food safety.

[0008] Therefore, how to provide a multi-stage cleaning and sterilization device for empty barrels has become a technical problem to be solved by those skilled in the art. Utility Model Content

[0009] The technical problem to be solved by the utility model is how to provide a multi-stage cleaning and sterilizing device for empty barrels.

[0010] To achieve the above-mentioned purpose, the utility model provides a multi-stage cleaning and sterilization device for empty barrels, comprising: a cleaning pool, a hot water pipe is provided on the cleaning pool, the water outlet end of the hot water pipe extends to the interior of the cleaning pool, a steam heating pipe network is provided inside the cleaning pool, a steam channel is provided on the cleaning pool, and the steam channel extends to the interior of the cleaning pool and is connected to the steam heating pipe network, a cleaning mechanism for processing residual sugar inside the empty barrel is provided on one side of the cleaning pool, and a drying and sterilization mechanism for heating and sterilizing the empty barrel is provided on the other side of the cleaning pool.

[0011] The cleaning tank is used to clean empty barrels. The design of the hot water pipeline, steam heating pipe network and steam channel is for the water replenishment and temperature rise of the tank. Valves are preset on both the hot water pipeline and the steam channel. This method is common knowledge in the field, so it will not be elaborated here. The cleaning mechanism is used to clean and centrally collect the residual sugar inside the empty barrel. The design of the drying and sterilization mechanism is to dry the inside of the empty barrel and sterilize the inside of the empty barrel to ensure the cleanliness of the empty barrel.

[0012] Preferably, four cleaning tanks are arranged in parallel from left to right, forming a first-level tank, a second-level tank, a third-level tank and a fourth-level tank. The areas of the four cleaning tanks and the areas of the steam heating pipe networks inside them gradually decrease.

[0013] The first-level tank is mainly used for the first cleaning of empty barrels and barrel lids. The second-level tank and the third-level tank are mainly used for the second and third cleanings of empty barrels. The fourth-level tank is mainly used for the further cleaning of barrel lids. With this design, a multi-level cleaning mechanism is formed, thus ensuring the cleaning effect of empty barrels.

[0014] Preferably, a thermometer a is arranged on the top of the cleaning tank, and the thermometer a is interlocked with the steam heating pipe network to form an electrically connected structure.

[0015] The thermometer a is designed to detect the water temperature in the tank. The thermometer a is interlocked with the steam heating pipe network so that the temperature can be kept at the set temperature in real time.

[0016] Preferably, a cleaning tank sewage pipe is arranged at the bottom of the cleaning tank, and a valve is preset on the cleaning tank sewage pipe.

[0017] The cleaning tank sewage pipe is for cleaning the tank and draining waste water.

[0018] Preferably, two circulating water pumps are also arranged at the bottom of the cleaning tank and are arranged in parallel. The inlet end of one circulating water pump is connected to the second-level tank through a pipeline, and the outlet end is connected to the first-level tank through a pipeline. The inlet end of the other circulating water pump is connected to the third-level tank and the fourth-level tank through a pipeline, and the outlet end is connected to the second-level tank through a pipeline. Pipeline filters are installed on the outlet pipelines of both circulating water pumps.

[0019] With this design, the water in the second-level tank is transported to the first-level tank, and the water in the third-level tank and the fourth-level tank is transported to the second-level tank, thus achieving the purpose of recycling and reflecting the environmental protection of this device.

[0020] Preferably, the cleaning mechanism includes a sugar dissolving tank and a collection tank.

[0021] The sugar dissolving tank is mainly used to dissolve the residual sugar in the empty barrel to improve the subsequent cleaning efficiency. The collection tank is used to centrally collect the residual sugar.

[0022] Preferably, a support frame is arranged inside the sugar dissolving tank, a grating a is installed on the inner wall of the sugar dissolving tank, and a spray head a is arranged inside the sugar dissolving tank. The spray head a is connected to the steam channel through a pipeline, and a manual switch valve and a pneumatic switch valve are preset on the pipeline connecting the spray head a. The pneumatic switch valve is interlocked with the grating a to form an electrically connected structure. A guiding pipe is installed on one side of the sugar dissolving tank, and the other end of the guiding pipe is connected to the collecting tank.

[0023] The design of the support frame fixes the empty barrel so that the barrel can be inverted into the sugar dissolving tank. The grating a is used to detect whether the empty barrel is in place. Steam is sprayed out through the spray head a, so that the syrup remaining inside the empty barrel is melted. The melted syrup is drained into the collecting tank through the guiding pipe.

[0024] Preferably, the top of the collecting tank is of an open structure, a filter screen is installed on the top of the collecting tank, and the top of the collecting tank is connected to the hot water pipe and the steam channel through pipelines. Valves are preset on the pipelines. One side of the bottom of the collecting tank is connected to a collecting pump through a pipeline. A liquid level sensor is installed on the outer wall of the collecting tank, and the liquid level sensor is interlocked with the collecting pump to form an electrically connected structure. A thermometer b is arranged above the liquid level sensor, and the thermometer b is interlocked with the valve on the connecting pipe of the steam channel to form an electrically connected structure. A collecting tank sewage discharge pipe is installed on one side of the collecting tank.

[0025] The filter screen is used to filter the dissolved sugar drained from the sugar dissolving tank. The hot water is used to dilute the thick sugar. The steam pipe is used to heat the cold sugar. The collecting pump is used to pump away the syrup in the collecting tank. The design of interlocking the liquid level gauge with the collecting pump can control the start and stop of the collecting pump. The design of interlocking the thermometer b with the valve on the connecting pipe of the steam channel can control the temperature of the syrup in the collecting tank, thereby reducing the viscosity of the syrup and facilitating transportation. The design of the collecting tank sewage discharge tank is for operations such as cleaning and sewage discharge of the collecting tank.

[0026] Preferably, the drying and sterilizing mechanism includes a drying tank and a sterilizing tank.

[0027] The design of the drying tank and the sterilizing tank is used to dry and sterilize the inside of the empty barrel to ensure the cleanliness of the empty barrel.

[0028] Preferably, a grating b is arranged on the inner wall of the drying tank, an air duct is arranged outside the drying tank, a fan is installed at the air inlet end of the air duct, the fan is interlocked with the grating b to form an electrically connected structure, the air outlet end of the air duct extends into the drying tank and is connected to a spray head b, a heating wire and a thermometer c are installed on the air duct, and the heating wire and the thermometer c are interlocked to form an electrically connected structure. A drying tank sewage discharge pipe is arranged at the bottom of the drying tank;

[0029] The top of the sterilization tank is of an open structure. A fixing frame is installed outside the sterilization tank, and an ultraviolet lamp is arranged on the fixing frame. The ultraviolet lamp is connected to the fixing frame via a cable. A cover plate is installed on the ultraviolet lamp cable, and a displacement sensor is installed on one side of the cover plate.

[0030] The drying tank is mainly used to support the inverted empty barrel. Grating b forms a grating induction system to detect whether the empty barrel is in place and is interlocked with the blower to control the start and stop of the blower. The blower is used to transport external air into the drying tank through an air duct, and the air is ejected through nozzle b. This design makes the drying effect better. The heating wire is used to heat the air, and thermometer c is used to detect the temperature of the air duct. Thermometer c is interlocked with the heating wire, so that the temperature of the air used for drying can be kept at the set value in real time, further ensuring the drying effect. The wastewater in the drying tank is discharged through the drying tank sewage pipe;

[0031] The sterilization tank is mainly used to place the dried empty barrel. The fixing frame is a movable support. The rotary joint on the fixing frame is connected to the ultraviolet lamp via a cable. The ultraviolet lamp enters the empty barrel to sterilize the inside of the empty barrel. The cover plate is located above the ultraviolet lamp. The cover plate can seal the barrel mouth. At the same time, when the cover plate is placed on the barrel mouth, the position of the ultraviolet lamp is fixed, playing a positioning role to prevent the ultraviolet lamp from colliding with the inner wall of the barrel. The displacement sensor is designed to detect the distance between the cover plate and the barrel, thereby controlling the switch of the ultraviolet lamp.

[0032] The beneficial effects of the present utility model are as follows:

[0033] 1. When the present utility model is in use, in the sugar dissolving tank, steam is used to heat and dissolve the sugar remaining on the barrel wall. This not only enables centralized treatment of the residual sugar but also avoids the direct transfer of the residual sugar to the barrel washing pool, preventing water pollution, improving the cleaning efficiency, reducing the frequency of water replacement, lowering the water consumption cost, and facilitating popularization and use.

[0034] 2. When the present utility model is in use, by using two circulating pumps to conduct hierarchical recycling of the water in the multi-stage pool, the purpose of water saving is achieved, reflecting the environmental protection of this device.

[0035] 3. When the present utility model is in use, by setting up a drying device to dry the inside of the empty barrel, water residue is avoided, preventing syrup pollution. By using an ultraviolet lamp to conduct a dead-angle-free sterilization treatment on the inside of the empty barrel, bacterial residue is avoided, thereby improving the product quality.

[0036] 4. When the present utility model is in use, through the interlock control of the thermometer with the steam regulating valve, the blower, etc., real-time temperature control is carried out on the collection tank, multi-stage pool, air duct, etc. The condensation of syrup in the collection tank is avoided, ensuring the cleaning and drying effects. At the same time, through the application of automatic detection devices such as gratings and displacement sensors, automatic start and stop of sugar dissolving, drying, and sterilization are achieved, reflecting the automation degree of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 is the front view structural schematic diagram of the overall specific implementation manner of the present invention;

[0039] Figure 2 is the front view structural schematic diagram of the cleaning pool in the specific implementation manner of the present invention;

[0040] Figure 3 is the front view structural schematic diagram of the drying tank in the specific implementation manner of the present invention;

[0041] Figure 4 is the front view structural schematic diagram of the sterilization tank in the specific implementation manner of the present invention.

[0042] PART NAME

[0043] 1. Cleaning pool; 101. Hot water pipe; 102. Steam heating pipe network; 103. Steam channel; 104. Thermometer a; 105. Cleaning pool sewage discharge pipe; 106. Circulating water pump;

[0044] 2. Sugar dissolving tank; 201. Support frame; 202. Grating a; 203. Nozzle a; 204. Guide pipe;

[0045] 3. Collection tank; 301. Filter screen; 302. Collection pump; 303. Liquid level sensor; 304. Thermometer b; 305. Collection tank sewage discharge pipe;

[0046] 4. Drying tank; 401. Grating b; 402. Air duct; 403. Fan; 404. Nozzle b; 405. Heating wire; 406. Thermometer c; 407. Drying tank sewage discharge pipe;

[0047] 5. Sterilization tank; 501. Fixed frame; 502. Ultraviolet lamp; 503. Cover plate; 504. Displacement sensor. SPECIFIC IMPLEMENTATION MANNER

[0048] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. Preferably, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0049] In the description of the present utility model, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0050] Please refer to Figures 1 to 4, the present utility model provides a multi-stage cleaning and sterilization device for empty barrels, including: a cleaning pool 1, a hot water pipe 101 is arranged on the cleaning pool 1, and the water outlet end of the hot water pipe 101 extends into the interior of the cleaning pool 1. A steam heating pipe network 102 is arranged inside the cleaning pool 1. A steam channel 103 is arranged on the cleaning pool 1, and the steam channel 103 extends into the interior of the cleaning pool 1 and is connected to the steam heating pipe network 102. A cleaning mechanism for treating the residual sugar inside the empty barrel is arranged on one side of the cleaning pool 1, and a drying and sterilization mechanism for heating and sterilizing the empty barrel is arranged on the other side of the cleaning pool 1. Four cleaning pools 1 are arranged in parallel from left to right, forming a primary pool, a secondary pool, a tertiary pool, and a quaternary pool. And the areas of the four cleaning pools 1 and the areas of the steam heating pipe networks 102 inside them gradually decrease. A thermometer a 104 is arranged on the top of the cleaning pool 1, and the thermometer a 104 is in interlock with the steam heating pipe network 102 to form an electrical connection structure. A cleaning pool sewage discharge pipe 105 is arranged at the bottom of the cleaning pool 1, and a valve is preset on the cleaning pool sewage discharge pipe 105. Two circulating water pumps 106 are also arranged at the bottom of the cleaning pool 1, and the two circulating water pumps 106 are arranged in parallel. The water inlet end of one of the circulating water pumps 106 is connected to the secondary pool through a pipe, and the water outlet end is connected to the primary pool through a pipe. The water inlet end of the other circulating water pump 106 is connected to the tertiary pool and the quaternary pool through a pipe, and the water outlet end is connected to the secondary pool through a pipe. And pipe filters are installed on the water outlet pipes of the two circulating water pumps 106. The cleaning mechanism includes a sugar dissolving tank 2 and a collection tank 3. A support frame 201 is arranged inside the sugar dissolving tank 2, and a grating a 202 is installed on the inner wall of the sugar dissolving tank 2. And a spray head a 203 is arranged inside the sugar dissolving tank 2. The spray head a 203 is connected to the steam channel 103 through a pipe, and a manual switch valve and a pneumatic switch valve are preset on the connecting pipe of the spray head a 203. And the pneumatic switch valve is in interlock with the grating a 202 to form an electrical connection structure. A guiding pipe 204 is installed on one side of the sugar dissolving tank 2, and the other end of the guiding pipe 204 is connected to the collection tank 3. The top of the collection tank 3 is of an open structure, and a filter screen 301 is installed on the top of the collection tank 3. And the top of the collection tank 3 is connected to the hot water pipe 101 and the steam channel 103 through pipes, and valves are preset on the pipes. One side at the bottom of the collection tank 3 is connected to a collection pump 302 through a pipe. A liquid level sensor 303 is installed on the outer wall of the collection tank 3, and the liquid level sensor 303 is in interlock with the collection pump 302 to form an electrical connection structure. A thermometer b 304 is arranged above the liquid level sensor 303, and the thermometer b 304 is in interlock with the valve on the connecting pipe of the steam channel 103 to form an electrical connection structure. A collection tank sewage discharge pipe 305 is installed on one side of the collection tank 3. The drying and sterilization mechanism includes a drying tank 4 and a sterilization tank 5. A grating b 401 is arranged on the inner wall of the drying tank 4. An air duct 402 is arranged outside the drying tank 4. A fan 403 is installed at the air inlet end of the air duct 402, and the fan 403 is in interlock with the grating b 401 to form an electrical connection structure.The air outlet end of the air duct 402 extends into the drying tank 4 and is connected with a spray head b404. A heating wire 405 and a thermometer c406 are installed on the air duct 402, and the heating wire 405 and the thermometer c406 are interlocked to form an electrical connection structure. A sewage discharge pipe 407 of the drying tank 4 is arranged at the bottom of the drying tank 4. The top of the sterilization tank 5 is of an open structure. A fixing frame 501 is installed on the outside of the sterilization tank 5. An ultraviolet lamp 502 is arranged on the fixing frame 501. The ultraviolet lamp 502 is connected to the fixing frame 501 through a cable. A cover plate 503 is installed on the cable of the ultraviolet lamp 502, and a displacement sensor 504 is installed on one side of the cover plate 503;

[0051] In this embodiment:

[0052] First, open the manual switch valve on the pipeline connecting the spray head a203, and at the same time remove the lid of the empty barrel and invert it onto the empty barrel support frame 201 on the sugar dissolving tank 2. When the grating induction system formed by the grating a202 senses that the empty barrel is in place, the pneumatic switch valve on the pipeline connecting the spray head a203 automatically opens, so that steam enters the spray head a203 through the pipeline connecting the spray head a203, so that the steam sprays out from the spray head a203 to heat the barrel, and then the residual sugar on the barrel wall is gradually dissolved, and then the residual sugar flows down along the barrel wall into the sugar dissolving tank 2, and then flows into the collection tank 3 through the guide pipe 204;

[0053] Second, when the residual sugar enters the collection tank 3, it can be filtered through the filter screen 301. When the liquid level sensor 303 detects that the liquid level in the collection tank 3 reaches the set value, start the collection pump 302 to pump out the sugar solution. If the concentration of the residual sugar in the collection tank 3 is relatively high and it is difficult for the collection pump 302 to pump it away, then open the hot water valve on the pipeline at the top of the collection tank 3 and release hot water into the tank to dilute the syrup, so as to improve the fluidity of the sugar solution. Set the temperature of the collection tank 3 to 80 °C, and the thermometer b304 detects the temperature in the tank in real time. If the temperature is less than 80 °C, the steam regulating valve on the pipeline at the top of the collection tank 3 opens. If the temperature is greater than 80 °C, the steam regulating valve closes, so as to control the temperature of the collection tank 3 to 80 °C in real time to prevent the syrup from condensing and crystallizing;

[0054] Next, after the sugar is dissolved, the bucket is taken out of the sugar dissolving tank 2 and placed in the first-level pool for cleaning. When the grating of the sugar dissolving tank 2 detects the absence of a bucket, the steam pneumatic switch valve on the connecting pipe of the nozzle a203 is controlled to close. When washing the bucket, the valves of the hot water pipeline 101 on the four cleaning pools 1 are opened to put hot water into the pools. The water temperature of the pool is set at 85 °C. If the thermometer a104 detects that the water temperature is lower than 85 °C, the steam regulating valve on the steam passage 103 is opened and the opening degree is gradually increased. The steam enters the pool through the steam heating pipe network 102 to heat the water. When the water temperature reaches about 85 °C, the regulating valve on the steam passage 103 is gradually turned down. If the water temperature is higher than 85 °C, the steam regulating valve on the steam passage 103 is closed, so as to stably control the temperature at 85 °C. The bucket washer cleans the bucket and the bucket cover in the first-level pool. After cleaning, the bucket and the bucket cover are placed in the second-level pool for cleaning. After cleaning, the bucket is placed in the third-level pool for cleaning, and the bucket cover is placed in the fourth-level pool for cleaning. As the cleaning progresses, the water in the first-level pool gradually becomes turbid, and at this time, the water needs to be replaced. Due to the hierarchical cleaning, the water in the third-level and fourth-level pools is cleaner than that in the second-level pool, and the second-level pool is cleaner than the first-level pool. Therefore, the water in the third-level and fourth-level pools can be recycled to the second-level pool for use, the water in the second-level pool can be recycled to the first-level pool for use, and the water in the first-level pool is drained after becoming turbid again. Repeat the above operations to achieve the purpose of saving water. When the water in the first-level pool becomes turbid, the valve of the cleaning pool drain pipe 105 of the first-level pool is opened to empty the first-level pool. Subsequently, the circulating water pump 106 from the second-level pool to the first-level pool is started to pump the water in the second-level pool into the first-level pool. The impurities in the pool are intercepted by the pipeline filter. If there are precipitated impurities at the bottom of the second-level pool, they can be drained through the cleaning pool drain pipe 105 at the bottom of the second-level pool; after the second-level pool is drained or emptied, the circulating water pumps 106 from the third-level and fourth-level pools to the second-level pool are started to pump the water in the third-level and fourth-level pools into the second-level pool. At the same time, the hot water valves of the third-level and fourth-level pools are opened to supplement the hot water in the third-level and fourth-level pools to the required amount, and the steam regulating valves of the third-level and fourth-level pools are opened to adjust the temperature to the required value to achieve the purpose of recycling water;

[0055] Then, after the bucket is cleaned, the empty bucket is taken out of the third-level pool, the water in the bucket is poured out, and the bucket is placed in the drying tank 4. When the grating b401 detects that the empty bucket is in place, the fan 403 starts to run, and the external air is conveyed into the drying tank 4 through the air duct 402. The air is sprayed out through the nozzle b404 to blow out and dry the remaining water in the bucket. Part of the remaining water is blown out to the bottom of the drying tank 4 and discharged through the drying tank drain pipe 407; the thermometer c406 on the air duct 402 detects the temperature of the air in real time. When the temperature is lower than the set value, the heating wire 405 starts to operate to heat the temperature to the required value, thus ensuring the drying effect. When the inside of the bucket is dried, the bucket is taken out. When the grating b401 detects the absence of a bucket, the fan 403 stops running until the next empty bucket is in place;

[0056] Finally, place the dried empty barrel on the sterilization tank 5. At the same time, extend the ultraviolet lamp 502 into the empty barrel through the fixing frame 501 until the cover plate 503 touches the barrel opening. The displacement sensor 504 on the side of the cover plate 503 senses that the distance from the empty barrel is within the set range of 8 cm, and then the ultraviolet lamp 502 is turned on to sterilize the inside of the empty barrel. After sterilization, move the ultraviolet lamp 502 upward, and the cover plate 503 and the displacement sensor 504 move upward accordingly. When the displacement sensor 504 detects that the distance exceeds the set range of 8 cm, the ultraviolet lamp 502 is automatically turned off. Take the empty barrel out of the sterilization tank 5, screw on the lid and set it aside. The entire operation of cleaning and sterilizing the empty barrel is completed.

[0057] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of the rights of the present utility model. Those of ordinary skill in the art can understand the whole or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A multi-stage cleaning and sterilization device for empty barrels, comprising: Cleaning tank (1), a hot water pipe (101) is arranged on the cleaning tank (1), the water outlet end of the hot water pipe (101) extends into the interior of the cleaning tank (1), a steam heating pipe network (102) is arranged inside the cleaning tank (1), a steam channel (103) is arranged on the cleaning tank (1), and the steam channel (103) extends into the interior of the cleaning tank (1) and is connected to the steam heating pipe network (102). It is characterized in that a cleaning mechanism for treating the residual sugar inside the empty barrel is arranged on one side of the cleaning tank (1), and a drying and sterilizing mechanism for heating and sterilizing the empty barrel is arranged on the other side of the cleaning tank (1).

2. The multi-stage cleaning and sterilization device for empty barrels according to claim 1, characterized in that, Four cleaning tanks (1) are arranged in parallel from left to right in sequence, forming a primary tank, a secondary tank, a tertiary tank and a quaternary tank, and the areas of the four cleaning tanks (1) and the area of the steam heating pipe network (102) inside them gradually decrease.

3. The multi-stage cleaning and sterilization device for empty barrels according to any one of claims 1 or 2, characterized in that, A thermometer a (104) is arranged on the top of the cleaning tank (1), and the thermometer a (104) is in interlock with the steam heating pipe network (102) to form an electrical connection structure.

4. The multi-stage cleaning and sterilization device for empty barrels according to claim 3, characterized in that, A cleaning tank sewage pipe (105) is arranged at the bottom of the cleaning tank (1), and a valve is preset on the cleaning tank sewage pipe (105).

5. The multi-stage cleaning and sterilization device for empty barrels according to claim 2, characterized in that, A circulating water pump (106) is also arranged at the bottom of the cleaning tank (1), and two circulating water pumps (106) are arranged in parallel. The water inlet end of one circulating water pump (106) is connected to the secondary tank through a pipe, and the water outlet end is connected to the primary tank through a pipe. The water inlet end of the other circulating water pump (106) is connected to the tertiary tank and the quaternary tank through a pipe, and the water outlet end is connected to the secondary tank through a pipe. And pipe filters are installed on the water outlet pipes of both circulating water pumps (106).

6. The multi-stage cleaning and sterilization device for empty barrels according to claim 1, wherein, The cleaning mechanism includes a sugar dissolving tank (2) and a collection tank (3).

7. The multi-stage cleaning and sterilization device for empty barrels according to claim 6, characterized in that, A support frame (201) is arranged inside the sugar dissolving tank (2), a grating a (202) is installed on the inner wall of the sugar dissolving tank (2), and a spray head a (203) is arranged inside the sugar dissolving tank (2). The spray head a (203) is connected to the steam channel (103) through a pipe, and a manual switch valve and a pneumatic switch valve are preset on the connecting pipe of the spray head a (203). The pneumatic switch valve is in interlock with the grating a (202) to form an electrical connection structure. A guiding pipe (204) is installed on one side of the sugar dissolving tank (2), and the other end of the guiding pipe (204) is connected to the collection tank (3).

8. The multi-stage cleaning and sterilization device for empty barrels according to claim 6, characterized in that, The top of the collection tank (3) is of an open structure, and a filter screen (301) is installed at the top of the collection tank (3). The top of the collection tank (3) is connected to the hot water pipe (101) and the steam channel (103) through pipes, and valves are preset on the pipes. One side of the bottom of the collection tank (3) is connected to a collection pump (302) through a pipe. A liquid level sensor (303) is installed on the outer wall of the collection tank (3), and the liquid level sensor (303) is interlocked with the collection pump (302) to form an electrically connected structure. A thermometer b (304) is arranged above the liquid level sensor (303), and the thermometer b (304) is interlocked with the valve on the connecting pipe of the steam channel (103) to form an electrically connected structure. A collection tank sewage discharge pipe (305) is installed on one side of the collection tank (3).

9. The multi-stage cleaning and sterilization device for empty barrels according to claim 1, wherein, The drying and sterilizing mechanism includes a drying tank (4) and a sterilizing tank (5).

10. The multi-stage cleaning and sterilization device for empty barrels according to claim 9, characterized in that, A grating b (401) is arranged on the inner wall of the drying tank (4). An air duct (402) is arranged outside the drying tank (4). A fan (403) is installed at the air inlet end of the air duct (402). The fan (403) is interlocked with the grating b (401) to form an electrically connected structure. The air outlet end of the air duct (402) extends into the drying tank (4) and is connected to a spray head b (404). A heater (405) and a thermometer c (406) are installed on the air duct (402), and the heater (405) and the thermometer c (406) are interlocked to form an electrically connected structure. A drying tank sewage discharge pipe (407) is arranged at the bottom of the drying tank (4); The top of the sterilizing tank (5) is of an open structure. A fixing frame (501) is installed outside the sterilizing tank (5). An ultraviolet lamp (502) is arranged on the fixing frame (501). The ultraviolet lamp (502) is connected to the fixing frame (501) through a cable. A cover plate (503) is installed on the cable of the ultraviolet lamp (502), and a displacement sensor (504) is installed on one side of the cover plate (503).

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