A carousel cleaning apparatus and method

Abstract

A rotary cage cleaning device and method, the device comprises a cleaning main machine and a cleaning auxiliary machine; the cleaning auxiliary machine comprises a purified water tank, a hot drinking water tank, a circulating water tank, a cleaning agent water tank, a cleaning pump, a backflow pump, a plurality of pipelines with valves and a control system; the output ends of the purified water tank, the hot drinking water tank, the circulating water tank and the cleaning agent water tank are respectively connected with the input end of the cleaning pump through the pipelines, and the output end of the cleaning pump is connected with the nozzle of the cleaning main machine; the blowdown end of the cleaning chamber of the cleaning main machine is respectively connected with the input end of the backflow pump and the blowdown port through the pipelines; the output end of the backflow pump is respectively connected with the circulating water tank and the cleaning agent water tank through the pipelines; the control system is used for controlling the opening and closing of the valves and the operation of the cleaning pump and the backflow pump. Therefore, the backflow pump is arranged, part of the liquid generated in the cleaning process can be recycled, the consumption of water resources can be effectively reduced, the emission of the cleaning agent can be reduced, and the device is more environmentally friendly.

Description

Technical Field

[0001] This invention relates to the technical field of rotary drum cleaning, and in particular to a rotary drum cleaning device and method. Background Technology

[0002] Soft capsules are a type of capsule packaging commonly found in pharmaceuticals and health foods. In the production of soft capsules, rotary drying drums with forced air are commonly used for evaporation and drying.

[0003] Traditional rotary drum cleaning operations rely heavily on manual operation using a hot water hose. This method has significant drawbacks in terms of system reliability and personnel safety. First, the cleaning effect depends entirely on the operator's personal experience and subjective judgment, lacking objective standards and quantitative data, resulting in inconsistent quality and a lack of traceability. Second, operators must spend extended periods in a confined, humid environment, directly exposed to 80°C hot water and pervasive steam. This not only poses a constant threat of burns, but the reduced oxygen levels caused by the humid environment also create a potential suffocation hazard.

[0004] At the same time, water consumption is out of control. Manual cleaning, which is based on the arbitrary principle of "rinsing until it is clean", has resulted in a lot of waste and low efficiency.

[0005] Consequently, various types of rotary drum automatic cleaning machines have emerged on the market, enabling automated cleaning and ensuring personnel safety. However, their technological models have fundamental limitations. Current rotary drum automatic cleaning machines employ an "open-loop" linear cleaning process, where all cleaning media (including expensive purified water, hot drinking water, and chemical cleaning agents) are directly discharged after a single use. This crude, one-time consumption model leads to a significant waste of water and energy, and makes it impossible to recycle and reuse cleaning agents. This not only results in persistently high operating costs but also creates significant environmental pressure. Summary of the Invention

[0006] The purpose of this invention is to provide a rotary drum cleaning device and method that can achieve the recycling of cleaning media while automating cleaning, thereby improving operational efficiency and safety, and having the advantages of water saving and cost reduction.

[0007] To achieve the above objectives, the solution of the present invention is: A rotary drum cleaning device includes: a cleaning main unit and a cleaning auxiliary unit; The cleaning unit includes a cleaning chamber for housing the rotating drum, and a spray nozzle for rinsing and spraying the rotating drum inside the cleaning chamber. The cleaning auxiliary equipment includes a purified water tank, a hot drinking water tank, a circulating water tank, a cleaning agent tank, a cleaning pump, a return pump, multiple pipelines with multiple valves and multiple connection ends, and a control system. The output ends of the purified water tank, hot drinking water tank, circulating water tank, and cleaning agent tank are respectively connected to the input end of the cleaning pump through the pipeline, and the output end of the cleaning pump is connected to the nozzle of the cleaning host. The drain end of the cleaning chamber of the cleaning host is connected to the input end and the drain outlet of the return pump through the pipeline; the output end of the return pump is connected to the circulating water tank and the cleaning agent tank through the pipeline. The control system is used to control the opening and closing of the valve, as well as the operation of the cleaning pump and the return pump.

[0008] Furthermore, the purified water tank is connected to the purified water source through the pipeline; the hot drinking water tank, the circulating water tank, and the cleaning agent tank are respectively connected to the filtered and purified drinking water source through the pipeline; the purified water tank, the hot drinking water tank, and the circulating water tank are respectively connected to the industrial steam source through the pipeline.

[0009] Furthermore, the input end of the cleaning pump is provided with a cleaning input pipeline for connecting to the output ends of the purified water tank, hot drinking water tank, circulating water tank, and cleaning agent tank; the output end of the cleaning pump is provided with a cleaning output pipeline for connecting to the nozzle. The cleaning auxiliary machine also includes a compressed air source; the compressed air source is heated and then connected to the cleaning input pipeline, the cleaning output pipeline and the nozzle through the pipeline.

[0010] Furthermore, the cleaning input pipeline is equipped with valves and filters; the cleaning output pipeline is equipped with a heating device, the heat of which is provided by an industrial steam source.

[0011] Furthermore, the purified water tank, hot drinking water tank, and circulating water tank of the cleaning auxiliary machine are also connected to a circulating pump. The purified water tank and the hot drinking water tank each use or share a circulating pump, while the circulating water tank uses a separate circulating pump. The input end of the circulating pump is connected to the corresponding water tank through a pipeline equipped with a filter, and the output end of the circulating pump is connected to the corresponding water tank through a pipeline equipped with a heating device. The heat of the heating device is provided by an industrial steam source.

[0012] Furthermore, the purified water tank, hot drinking water tank, circulating water tank, cleaning agent tank, and nozzle are each connected to a bus disinfection circulation loop with multiple valves.

[0013] Furthermore, the cleaning agent tank is equipped with a steam heat exchanger and a magnetic stirrer.

[0014] Furthermore, the cleaning unit also includes a blower and an exhaust fan; the blower is used to blow air into the cleaning chamber; and the exhaust fan is used to ventilate and exhaust the cleaning chamber.

[0015] Furthermore, the cleaning host also includes a rotating drum drive device; the rotating drum drive device is located in the cleaning chamber and is used to rotate the drum; the cleaning chamber is provided with a water receiving tank, which is connected to the drain end and is used to receive the liquid flowing down from the drum during cleaning.

[0016] The present invention also provides a rotary drum cleaning method, using the aforementioned equipment, comprising the following steps: Step 1: Pre-rinse with hot drinking water or circulating water; the control system uses a cleaning pump to draw hot water from the hot drinking water tank or circulating water tank, and sprays the rotating drum to pre-rinse it. The cleaned hot water is then discharged directly from the drain outlet through the drain end. Step 2: Cleaning agent rinsing and cleaning agent rinsing recovery; The cleaning agent in the cleaning agent tank is used to rinse the rotating drum by using a cleaning pump. Excess cleaning agent is discharged from the sewage outlet and the cleaning agent is recovered to the cleaning agent tank by a return pump. Step 3: Rinse the cleaning agent; Use a cleaning pump to draw hot drinking water or hot water from the circulating water tank to rinse the rotating drum. The mixture of the rinsed cleaning agent and hot water is discharged directly from the drain outlet. Step 4: Circulating water cleaning; The cleaning pump draws water from the circulating water tank to rinse the rotating drum. The cleaned water is then returned to the circulating water tank by the return pump for further rinsing. Step 5: Hot drinking water cleaning; Use a cleaning pump to draw water from the hot drinking water tank to rinse the drum clean. The cleaning water is then returned to the circulating water tank by a return pump for storage, to be used in the next cleaning cycle. Step 6: Purified water rinsing; Use a rinsing pump to draw water from the purified water tank to rinse the rotating drum clean, ensuring the cleanliness of the rotating drum. The rinsed water is then returned to the circulating water tank for storage via a return pump. Step 7: High-pressure blower purging; using a blower and exhaust fan to remove moisture from the surface of the rotating drum; Step 8: Drain the pipeline; Use compressed air to ventilate and drain the cleaning pipeline and nozzle connected to the cleaning pump to prevent water residue in the pipeline and the growth of bacteria. In the above steps, when a selection is required, the hot water in the circulating water tank should be used first.

[0017] Furthermore, each water tank is equipped with a level sensor. When a hot water source needs to be selected, it will be automatically selected based on the level of the circulating water tank. If the level of the circulating water tank is insufficient, hot drinking water will be selected as the source, and if the water level is sufficient, the circulating water tank will be selected.

[0018] Furthermore, after the first pre-rinse, compressed air is used to drain the liquid medium from the cleaning pipeline and nozzles; a blower and an exhaust fan are used to drain the liquid medium from the cleaning chamber; and the liquid is then discharged from the drain outlet. After the second step of cleaning agent rinsing, compressed air is used to drain the liquid medium in the cleaning pipeline and nozzle, and blowers and exhaust fans are used to drain the liquid medium in the cleaning chamber, while a return pump is used for full recovery. After rinsing the cleaning agent in the third step, use a blower and exhaust fan to drain the liquid medium from the cleaning chamber and discharge it through the drain outlet. After the fourth step of circulating water cleaning is completed, turn off the return pump, use the cleaning pump to empty the circulating water tank into the cleaning chamber and drain it from the drain outlet. Then use the blower and exhaust fan to empty the liquid medium in the cleaning chamber and drain it from the drain outlet. After the fifth step of hot drinking water cleaning, the liquid medium in the cleaning chamber is emptied using blowers and exhaust fans; and at the same time, a return pump is used for full recovery. After the sixth step of rinsing with purified water, the liquid medium in the rinsing chamber is emptied using a blower and an exhaust fan; at the same time, a return pump is used for full recovery.

[0019] By adopting the above technical solution, a cleaning pump is installed, which can control the purified water tank, hot drinking water tank, circulating water tank, and cleaning agent tank to perform multiple automated high-temperature cleanings on the rotating drum through nozzles, which can save manpower and improve safety. A return pump is also installed, which can recycle some of the liquid generated during the cleaning process. For example, hot drinking water and purified water with fewer impurities in the rinsing stage can be recycled back to the circulating water tank for reuse. At the same time, the cleaning agent in the cleaning process can also be recycled back to the cleaning agent tank for reuse, which can effectively reduce water consumption and cleaning agent discharge, making it more environmentally friendly.

[0020] Compared with traditional cleaning methods, the present invention has the following advantages: (1) Fundamentally improves operational safety: Operators do not need to enter a hot and humid environment or come into contact with high-temperature water or steam, completely eliminating the risk of burns and suffocation, and achieving inherent safety.

[0021] (2) Ensure the consistency and traceability of cleaning quality: The automated program replaces human subjective judgment, ensuring that the parameters are fixed and the process is uniform for each cleaning, and that the cleaning effect is stable, reliable and verifiable, meeting the requirements of high-standard hygiene regulations such as GMP.

[0022] (3) Significantly improve production efficiency: The equipment can run automatically and continuously, the cleaning time is fixed and greatly shortened, freeing up operators to perform other tasks, and improving the overall equipment utilization rate.

[0023] (4) Achieve intensive and economical use of water and energy: Through water recycling and heat recovery, water consumption and energy consumption can be reduced by more than 50% compared with the traditional direct flushing method, and long-term operating costs will be significantly reduced.

[0024] (5) Improve equipment management and hygiene: The automated pipeline venting and drying function reduces the risk of internal corrosion and bacterial growth, extends the service life of the equipment, and provides cleaner and more hygienic equipment conditions for the production of the next batch of products. Attached Figure Description

[0025] Figure 1 This is a basic structural block diagram of an embodiment of the present invention; Figure 2 This is a partial structural block diagram of the cleaning auxiliary machine according to an embodiment of the present invention; Figure 3 This is a block diagram of the overall structure of the device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the method flow according to an embodiment of the present invention; Labeling explanation: Cleaning main unit 100, cleaning chamber 101, nozzle 102, blower 103, exhaust fan 104, sewage discharge end 105; Auxiliary cleaning equipment 200, purified water tank 201, hot drinking water tank 202, circulating water tank 203, cleaning agent tank 204, cleaning pump 205, return pump 206, valve 207, pipeline 208, drain outlet 209, purified water source 210, filtration and purification device 211, drinking water source 212, industrial steam source 213, bus disinfection circulation loop 214, cleaning input pipeline 215, cleaning output pipeline 216, compressed air source 217, air electric heater 218, filter 219, heating device 220, circulation pump 221, first circulation pump 2211, second circulation pump 2212, steam heat exchanger 222, magnetic stirrer 223, circulating heating device 224, first circulating heating device 2241, second circulating heating device 2242; Rotating cage 300. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] like Figures 1 to 3 The rotating drum 300 cleaning device described in this embodiment includes a cleaning main unit 100 and a cleaning auxiliary unit 200.

[0028] The structure of the cleaning host 100 can refer to the prior art, and may specifically include a cleaning chamber 101, a nozzle 102, a rotating drive device (not shown), a blower 103, and an exhaust fan 104.

[0029] The cleaning chamber 101 is used to house the rotating cage 300. The rotating cage rotation device is located inside the cleaning chamber 101 and is used to rotate the rotating cage 300. The spray head 102 is used to rinse and spray the rotating cage 300 inside the cleaning chamber 101. The spray head 102 may include a movable nozzle, a gate-shaped fan-shaped nozzle, a rotating nozzle, etc., which can improve the spray coverage and ensure the cleaning effect.

[0030] The blower 103 can be used to blow air into the cleaning chamber 101 to dry the cleaned drum 300; the exhaust fan 104 is used to ventilate the cleaning chamber 101 to help improve the drying effect.

[0031] The cleaning chamber 101 may be equipped with a water receiving tank (not shown) to receive the liquid flowing down from the rotating drum 300 during cleaning. The water receiving tank has a drain end 105 extending out of the cleaning chamber 101 to discharge the liquid.

[0032] The main improvement in this embodiment lies in the cleaning auxiliary machine 200, which may include a purified water tank 201, a hot drinking water tank 202, a circulating water tank 203, a cleaning agent tank 204, a cleaning pump 205, a return pump 206, multiple pipelines 208 with multiple valves 207 and multiple connection ends, and a control system (not shown in the figure); it is mainly used to provide cleaning liquid to the cleaning host 100.

[0033] Specifically, the number of connection ends and valves 207 of the pipeline 208 are adapted according to the required connection objects, and one valve 207 can be installed on each connection end; the output ends of the purified water tank 201, hot drinking water tank 202, circulating water tank 203, and cleaning agent tank 204 can be connected to the input end of the cleaning pump 205 through pipelines 208 with five connection ends and five valves 207, respectively, and one valve 207 can be installed on each connection end; the output end of the cleaning pump 205 is connected to the nozzle 102 of the cleaning host 100. Thus, the cleaning pump 205 can be used to draw liquid from each tank and spray it onto the nozzle 102 for cleaning.

[0034] The drain end 105 of the cleaning chamber 101 of the cleaning host 100 is connected to the input end and drain port 209 of the return pump 206 via a pipeline 208 with three connection ends and three valves 207. The output end of the return pump 206 is connected to the circulating water tank 203 and the cleaning agent tank 204 via the pipeline 208 with three connection ends and three valves 207. Using the return pump 206, some of the liquid generated during the cleaning process can be recycled, reducing water consumption and cleaning agent emissions.

[0035] The valve 207 can be an electrically controllable valve device such as a solenoid valve. The control system is used to control the opening and closing of the valve 207, as well as the operation of the cleaning pump 205 and the return pump 206, so as to control the water output of different water tanks according to the cleaning process, and control the return or discharge of cleaning water in the water tank in the cleaning chamber 101.

[0036] In this embodiment, the purified water tank 201 can be connected to the purified water source 210 via the pipeline 208 with two connection ends and two valves 207, so that the purified water source 210 can replenish the water.

[0037] The hot drinking water tank 202, circulating water tank 203, and cleaning agent tank 204 can be connected to the drinking water source 212, which has been filtered and purified by the filtration and purification device 211, through the pipeline 208 with four connecting ends and four valves 207, respectively, to facilitate the replenishment of drinking water. The cleaning agent in the cleaning agent tank 204 can be an alkaline solution or the like.

[0038] In this embodiment, the input end of the cleaning pump 205 is provided with a cleaning input pipeline 215 for connecting to the output ends of the purified water tank 201, the hot drinking water tank 202, the circulating water tank 203, and the cleaning agent tank 204; the output end of the cleaning pump 205 is provided with a cleaning output pipeline 216 for connecting to the nozzle 102.

[0039] The cleaning auxiliary machine 200 also includes a compressed air source 217. The compressed air output by the compressed air source 217 can be heated by an air electric heater 218 and then connected to the cleaning input pipeline 215, the cleaning output pipeline 216 and the nozzle 102 through the pipeline 208 respectively. Thus, the compressed air source 217 can provide hot compressed air to clean and dry the cleaning channel formed by the cleaning input pipeline 215, the cleaning output pipeline 216 and the nozzle 102. It can also purge residual media (cleaning agent, hot drinking water, circulating hot water, purified water) in the pipeline to prevent pipeline residue and bacterial growth.

[0040] In this embodiment, the cleaning input pipeline 215 is equipped with a valve 207 and a 100-mesh filter 219; the cleaning output pipeline 216 is equipped with a heating device 220. The purpose of the heating device 220 is to provide secondary heating to ensure the temperature of the medium entering the cleaning nozzle, thereby achieving the cleaning effect. The heat of the heating device 220 is provided by an industrial steam source 213.

[0041] like Figure 1 and 2 As shown, the purified water tank 201, hot drinking water tank 202, and circulating water tank 203 are also connected to a circulating pump 221 and a circulating heating device 224 to heat the water in the hot drinking water tank 202 and the circulating water tank 203. The input end of the circulating pump 221 is connected to the corresponding water tank through the pipeline 208 equipped with a filter 219, and the output end of the circulating pump 221 is connected to the corresponding water tank through the pipeline 208 equipped with a circulating heating device 224. The heat of the circulating heating device 224 is provided by an industrial steam source 201, which can exchange heat with the water flowing through the circulating heating device 224.

[0042] The purified water tank 201 and the hot drinking water tank 202 can each use or share a single circulation pump 221. In this embodiment, the purified water tank 201 and the hot drinking water tank 202 share a single first circulation pump 2211 and a first circulation heating device 2241 to save equipment costs and space. Moreover, the purified water tank 201 does not require heating, and the water quality of the purified water is not affected when the hot drinking water tank 202 is heated using the first circulation pump 2211. The circulating water tank 203 uses a single second circulation pump 2212 and a single circulation heating device 2242.

[0043] Furthermore, the purified water tank 201, hot drinking water tank 202, circulating water tank 203, cleaning agent tank 204, and nozzle 102 are each connected to a bus disinfection circulation loop 214 with multiple valves. Each tank may have a rotating nozzle connected to the bus disinfection circulation loop 214. This allows for regular disinfection of the interior of each tank in conjunction with the cleaning pump 205, return pump 206, and circulation pump 221.

[0044] Therefore, in this embodiment, each water tank, valve 207, pipeline 208, pump body, heating device 220, circulating heating device 224, nozzle 102, and cleaning chamber 101 can form a circuit in sections and independently disinfect the bus.

[0045] For example, such as Figure 2The purified water tank 201, the first circulation pump 2211, the first circulation heating device 2241, and the purified water tank 201 can be connected to form a circulation loop by controlling the opening and closing of the corresponding valve 207. Then, the water in the purified water tank 201 is heated to 80°C by the first circulation heating device 2241 in the loop and circulated by the first circulation pump 2211 for 30 minutes, which can complete the disinfection of each component in the loop.

[0046] For example Figure 1 Alternatively, the disinfection of the bus can be completed by connecting the purified water tank 201, the cleaning input pipe 215, the cleaning pump 205, the cleaning output pipe 216, the heating device 220, the bus disinfection circulation loop 214, and the purified water tank 201, and by using the heating device 220 in the loop to heat the water in the purified water tank 201 to 80°C and circulate it for 30 minutes.

[0047] Similarly, based on the above examples, the bus disinfection loop 214 can be used to disinfect all parts of the bus and prevent bacterial growth.

[0048] Meanwhile, each water tank can be equipped with a level controller and a temperature controller to adjust the liquid volume and temperature in the tank. The bottom of each water tank can be connected to the drain outlet 209 through a pipe to facilitate emptying the tank.

[0049] The cleaning agent tank 204 may be equipped with a steam heat exchanger 222 and a magnetic stirrer 223. The steam heat exchanger 222 is used for heating to accelerate the dissolution of the cleaning agent at high temperature, and the magnetic stirrer 223 is used for stirring to prevent the cleaning agent from settling.

[0050] like Figure 2 As shown, in this embodiment, the compressed air output from the compressed air source 217 is heated by the air heater 218, and can then be connected to the output end of the circulation pump 221 through the pipeline 208. Thus, after the bus is disinfected, the pipeline can be dried with compressed air at a lower pressure to prevent water residue from the bus disinfection from growing bacteria.

[0051] Using the aforementioned equipment, this embodiment can automate the cleaning of the rotating drum 300 by employing the following cleaning method, in conjunction with the program settings of the control system: Figure 4 Specifically, it may include the following steps: Step 1: Pre-rinse with hot drinking water or circulating water; use cleaning pump 205 to draw hot water from hot drinking water tank 202 or circulating water tank 203, and pre-rinse the rotating drum 300 through nozzle 102. The purpose is to remove residues (such as rubber residue left on the rotating drum 300 during soft capsule production) and increase the surface temperature of the rotating drum 300. The cleaned hot water can be directly discharged from drain port 209 through drain end 105. Hot water in circulating water tank 203 is preferred. When the circulating water in circulating water tank 203 is exhausted, hot water in hot drinking water tank 202 is used.

[0052] Step 2: Cleaning agent rinsing and cleaning agent rinsing recovery; The rotating drum 300 is rinsed with cleaning agent from the cleaning agent tank 204, and excess cleaning agent is discharged from the drain end 105 and recovered to the cleaning agent tank 204 by the return pump 206.

[0053] Step 3: Rinse the cleaning agent; use hot water from hot drinking water tank 202 or circulating water tank 203 to rinse the rotating drum 300 to clean the cleaning agent and remove stubborn residues. The mixture of the rinsed cleaning agent and hot water can be directly discharged from the drain outlet 209.

[0054] Step 4: Circulating water cleaning; Use the water in the circulating water tank 203 to rinse the rotating drum 300. The water after cleaning is retained in the water receiving tank in the cleaning chamber 101. The water in the water receiving tank is returned to the circulating water tank 203 by the return pump 206 for circulating rinsing. The purpose is to improve water utilization and save water.

[0055] Step 5: Hot drinking water cleaning; Use the water in the hot drinking water tank 202 to rinse the rotating drum 300 clean. The water after cleaning is retained in the water receiving tank in the cleaning chamber 101. The water in the water receiving tank is returned to the circulating water tank 203 by the return pump 206 for storage, so as to be used for the next cleaning cycle. The purpose is to improve the water utilization rate and save water.

[0056] Step 6: Purified water rinsing; Use the water in the purified water tank 201 to rinse the rotating drum 300 clean to ensure the cleanliness of the rotating drum 300. The rinsing water is retained in the water receiving tank in the cleaning chamber 101. The water in the water receiving tank is returned to the circulating water tank 203 for storage by the return pump 206. Recycling the purified water after rinsing can improve the water quality cleanliness of the circulating water tank.

[0057] Step 7: High-pressure blower purging; use blower 103 and exhaust fan 104 to remove moisture from the surface of the rotating drum 300.

[0058] Step 8: Drain the pipeline; use compressed air to ventilate and drain the cleaning pipeline (cleaning input pipeline 215, cleaning output pipeline 216) and nozzle 102 connected to the cleaning pump to prevent water residue in the pipeline and the growth of bacteria.

[0059] In this embodiment, each water tank can be equipped with a liquid level sensor. When it is necessary to select a hot water source, it can be automatically selected based on the liquid level of the circulating water tank 203. When the liquid level of the circulating water tank 203 is insufficient, hot drinking water is selected as the source, and the circulating water tank is selected when the water level is sufficient.

[0060] In this embodiment, during the above-mentioned cleaning process, the rotating drum 300 is continuously rotated using a rotating drum device to ensure thorough and comprehensive cleaning.

[0061] More specifically, after the pre-rinse in the first step, compressed air is used to drain the liquid medium in the cleaning pipeline and nozzle 102; blower 103 and exhaust fan 104 are used to drain the liquid medium in the cleaning chamber 101; and the liquid is discharged from the drain outlet 209 to improve the cleanliness of the subsequent recycling.

[0062] After the second step of cleaning agent rinsing, compressed air is used to drain the liquid medium in the cleaning pipeline and nozzle 102, and blower 103 and exhaust fan 104 are used to drain the liquid medium in the cleaning chamber 101, while the return pump 206 is used for full recovery. After rinsing the cleaning agent in the third step, the liquid medium in the cleaning chamber 101 is emptied using blower 103 and exhaust fan 104 and discharged from drain port 209.

[0063] After the fourth step of circulating water cleaning is completed, turn off the return pump 206, use the cleaning pump 205 to empty the circulating water tank 203 into the cleaning chamber 101, and drain it from the drain port 209. Then use the blower 103 and the exhaust fan 104 to empty the liquid medium in the cleaning chamber 101 and drain it from the drain port 209.

[0064] After the fifth step of hot drinking water cleaning, the liquid medium in the cleaning chamber 101 is emptied by blower 103 and exhaust fan 104; and at the same time, it is fully recovered by return pump 206.

[0065] After the sixth step of purifying water cleaning, the liquid medium in the cleaning chamber 101 is emptied using blower 103 and exhaust fan 104; and at the same time, the return pump 206 is used to fully recover the liquid.

[0066] In summary, this invention, through highly automated and programmed control of process steps and a resource recycling system, completely solves the various drawbacks of traditional manual cleaning. Furthermore, it possesses at least the following advantages: Advantage 1: Fully automated, programmed control. (1) The cleaning process is broken down into detailed steps, and the start-up, shutdown and duration of valves, pumps and fans can be automatically controlled by the PLC program of the control system to ensure that the parameters of each step (such as water source, flow direction, speed and time) are accurate. (2) The system has basic logical judgment capabilities. For example, the first step of pre-rinse can automatically select the hot water source according to the liquid level of the circulating water tank, thus realizing the optimal allocation of resources.

[0067] Advantage 2: Multi-media stepwise cleaning and targeted recovery technology: (1) Detailed division of labor: The cleaning process is scientifically divided into stages such as pre-rinse, cleaning agent wash, rinsing, circulating cleaning, and final rinsing, with clear objectives for each stage.

[0068] (2) Media-oriented treatment: Precisely "commanding" water and cleaning agents of different qualities: Direct discharge: The initial dirty rinsing water and detergent-containing rinse water are discharged directly to avoid contaminating the recycling system.

[0069] Recycling: Relatively clean cleaning water and hot drinking water are recycled to the circulating water tank for use in the initial stage of the next cleaning cycle, which greatly saves water resources and heat energy.

[0070] Quality Improvement and Recycling: The water rinsed with high-quality purified water is recycled to improve the overall water quality of the circulating water tank, achieving a virtuous cycle of "using good to replace inferior".

[0071] Advantage 3: Highly efficient resource (water, cleaning agents, heat energy) recovery and reuse system. Closed-loop cleaning: In steps four, five, and six, a large amount of water is recycled through the process of "cleaning pump spraying → water collection tank → return pump sending back to circulating water tank".

[0072] Cleaning agent recycling: The second step includes a dedicated cleaning agent recycling process, which reduces chemical consumption and wastewater treatment volume.

[0073] Heat reuse: The recovered hot water retains most of its heat energy, reducing the energy consumption for subsequent heating.

[0074] Advantage 4: Integrates multiple drying and venting mechanisms: Multiple drying safeguards: Not only is there a dedicated high-pressure blower purging at the end (step 7), but blowers are also introduced between multiple cleaning steps to ensure that the moisture inside the cavity and on the surface of the drum is drained in time, thus improving drying efficiency.

[0075] Pipeline purging design: At the end of the process (step 8) and after cleaning agent recovery, compressed air is used to purge the pipeline to completely drain residual liquid, prevent bacterial growth and water stains, and ensure product hygiene and equipment lifespan.

[0076] Advantage 5 has the following advantages compared to traditional cleaning methods: (1) Fundamentally improves operational safety: Operators do not need to enter a hot and humid environment or come into contact with high-temperature water or steam, completely eliminating the risk of burns and suffocation, and achieving inherent safety.

[0077] (2) Ensure the consistency and traceability of cleaning quality: The automated program replaces human subjective judgment, ensuring that the parameters are fixed and the process is uniform for each cleaning, and that the cleaning effect is stable, reliable and verifiable, meeting the requirements of high-standard hygiene regulations such as GMP.

[0078] (3) Significantly improve production efficiency: The equipment can run automatically and continuously, the cleaning time is fixed and greatly shortened, freeing up operators to perform other tasks, and improving the overall equipment utilization rate.

[0079] (4) Achieve intensive and economical use of water and energy: Through water recycling and heat recovery, water consumption and energy consumption can be reduced by more than 50% compared with the traditional direct flushing method, and long-term operating costs will be significantly reduced.

[0080] (5) Improve equipment management and hygiene: The automated pipeline venting and drying function reduces the risk of internal corrosion and bacterial growth, extends the service life of the equipment, and provides cleaner and more hygienic equipment conditions for the production of the next batch of products.

[0081] In summary, the rotary drum cleaning equipment of this invention, through a series of technological innovations and process implementations, transforms a high-risk, low-efficiency, and high-consumption manual labor into a safe, standardized, efficient, and energy-saving modern industrial equipment.

[0082] The above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of the present invention should still fall within the scope of protection of the present invention.

[0083] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component 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 application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A rotary drum cleaning device, characterized in that, include: Cleaning main unit and cleaning auxiliary unit; The cleaning unit includes a cleaning chamber for housing the rotating drum, and a spray nozzle for rinsing and spraying the rotating drum inside the cleaning chamber. The cleaning auxiliary equipment includes a purified water tank, a hot drinking water tank, a circulating water tank, a cleaning agent tank, a cleaning pump, a return pump, multiple pipelines with multiple valves and multiple connection ends, and a control system. The output ends of the purified water tank, hot drinking water tank, circulating water tank, and cleaning agent tank are respectively connected to the input end of the cleaning pump through the pipeline, and the output end of the cleaning pump is connected to the nozzle of the cleaning host. The drain end of the cleaning chamber of the cleaning host is connected to the input end and the drain outlet of the return pump through the pipeline; the output end of the return pump is connected to the circulating water tank and the cleaning agent tank through the pipeline. The control system is used to control the opening and closing of the valve, as well as the operation of the cleaning pump and the return pump.

2. The rotary drum cleaning device according to claim 1, characterized in that: The purified water tank is connected to the purified water source through the pipeline; the hot drinking water tank, the circulating water tank, and the cleaning agent tank are respectively connected to the filtered and purified drinking water source through the pipeline; the purified water tank, the hot drinking water tank, and the circulating water tank are respectively connected to the industrial steam source through the pipeline.

3. The rotary drum cleaning device according to claim 1, characterized in that: The input end of the cleaning pump is provided with a cleaning input pipeline for connecting to the output ends of the purified water tank, hot drinking water tank, circulating water tank, and cleaning agent tank; the output end of the cleaning pump is provided with a cleaning output pipeline for connecting to the nozzle. The cleaning auxiliary machine also includes a compressed air source; the compressed air source is heated and then connected to the cleaning input pipeline, the cleaning output pipeline and the nozzle through the pipeline; The cleaning input pipeline is equipped with valves and filters; the cleaning output pipeline is equipped with a heating device, the heat of which is provided by an industrial steam source.

4. The rotary drum cleaning device according to claim 1, characterized in that: The purified water tank, hot drinking water tank, and circulating water tank of the cleaning auxiliary machine are also connected to a circulating pump. The purified water tank and the hot drinking water tank each use or share a circulating pump, while the circulating water tank uses a separate circulating pump. The input end of the circulating pump is connected to the corresponding water tank through a pipeline equipped with a filter, and the output end of the circulating pump is connected to the corresponding water tank through a pipeline equipped with a circulating heating device. The heat of the circulating heating device is provided by an industrial steam source.

5. The rotary drum cleaning device according to claim 4, characterized in that: The purified water tank, hot drinking water tank, circulating water tank, cleaning agent tank, and nozzle are also connected to a bus disinfection circulation loop with multiple valves.

6. The rotary drum cleaning device according to claim 1, characterized in that: The cleaning unit also includes a blower and an exhaust fan; the blower is used to blow air into the cleaning chamber; the exhaust fan is used to ventilate and exhaust the cleaning chamber.

7. The rotary drum cleaning device according to claim 1, characterized in that: The cleaning host also includes a rotating drum drive device; the rotating drum drive device is located in the cleaning chamber and is used to rotate the drum; the cleaning chamber is provided with a water receiving tank, which is connected to the drain end and is used to receive the liquid flowing down from the drum during cleaning.

8. A rotary drum cleaning method, using the equipment described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Pre-rinse with hot drinking water or circulating water; the control system uses a cleaning pump to draw hot water from the hot drinking water tank or circulating water tank, and sprays the rotating drum to pre-rinse it. The cleaned hot water is then discharged directly from the drain outlet through the drain end. Step 2: Cleaning agent rinsing and cleaning agent rinsing recovery; The cleaning agent in the cleaning agent tank is used to rinse the rotating drum by using a cleaning pump. Excess cleaning agent is discharged from the sewage outlet and the cleaning agent is recovered to the cleaning agent tank by a return pump. Step 3: Rinse the cleaning agent; Use a cleaning pump to draw hot drinking water or hot water from the circulating water tank to rinse the rotating drum. The mixture of the rinsed cleaning agent and hot water is discharged directly from the drain outlet. Step 4: Circulating water cleaning; The cleaning pump draws water from the circulating water tank to rinse the rotating drum. The cleaned water is then returned to the circulating water tank by the return pump for further rinsing. Step 5: Rinse with hot drinking water; The cleaning pump draws water from the hot drinking water tank to rinse the drum clean. The rinsed water is then returned to the circulating water tank by the return pump for storage, to be used in the next cleaning cycle. Step 6: Purified water rinsing; Use a rinsing pump to draw water from the purified water tank to rinse the rotating drum clean, ensuring the cleanliness of the rotating drum. The rinsed water is then returned to the circulating water tank for storage via a return pump. Step 7: High-pressure blower purging; using a blower and exhaust fan to remove moisture from the surface of the rotating drum; Step 8: Drain the pipeline; Use compressed air to ventilate and drain the cleaning pipeline and nozzle connected to the cleaning pump to prevent water residue in the pipeline and the growth of bacteria. In the above steps, when a selection is required, the hot water in the circulating water tank should be used first.

9. A rotary drum cleaning method according to claim 8, characterized in that, Each water tank is equipped with a level sensor. When a hot water source needs to be selected, it will be automatically selected based on the level of the circulating water tank. If the level of the circulating water tank is insufficient, the source will be selected as hot drinking water. If the water level is sufficient, the source will be selected as the circulating water tank.

10. A rotary drum cleaning method according to claim 8, characterized in that: After the first step of pre-rinsing, compressed air is used to drain the liquid medium in the cleaning pipeline and nozzles; a blower and an exhaust fan are used to drain the liquid medium in the cleaning chamber. Discharge it through the sewage outlet; After the second step of cleaning agent rinsing, compressed air is used to drain the liquid medium in the cleaning pipeline and nozzle, and blowers and exhaust fans are used to drain the liquid medium in the cleaning chamber, while a return pump is used for full recovery. After rinsing the cleaning agent in the third step, use a blower and exhaust fan to drain the liquid medium from the cleaning chamber and discharge it through the drain outlet. After the fourth step of circulating water cleaning is completed, turn off the return pump, use the cleaning pump to empty the circulating water tank into the cleaning chamber and drain it from the drain outlet. Then use the blower and exhaust fan to empty the liquid medium in the cleaning chamber and drain it from the drain outlet. After the fifth step of hot drinking water cleaning, the liquid medium in the cleaning chamber is emptied using a blower and an exhaust fan; And at the same time, it works in conjunction with a reflux pump to fully recover the waste; After the sixth step of rinsing with purified water, the liquid medium in the rinsing chamber is emptied using a blower and an exhaust fan; It is also used in conjunction with a reflux pump for full recovery.

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