A cleaning system for a drum

Abstract

This application discloses a cleaning system for a drum, relating to the field of cleaning equipment technology. The system includes an electric three-way valve; a water inlet pipe connected to one inlet end of the electric three-way valve; an air inlet pipe connected to the other inlet end of the electric three-way valve; a gas-liquid outlet pipe connected to the outlet end of the electric three-way valve; and a nozzle installed at the end of the gas-liquid outlet pipe furthest from the electric three-way valve. Using this cleaning system, after cleaning is completed, the electric three-way valve closes the water inlet pipe and opens the air inlet pipe, allowing compressed air to enter the gas-liquid outlet pipe through the air inlet pipe. The airflow travels along the entire length of the gas-liquid outlet pipe to the nozzle, using air pressure to thoroughly blow away the cleaning water remaining on the inner wall of the pipe and inside the nozzle, ensuring no water residue remains in the gas-liquid outlet pipe and inside the nozzle. During subsequent production, because there is no water remaining in the pipe and nozzle, even if the equipment vibrates, water droplets will not fall into the drum, thus avoiding the generation of yellow stains and water stains, and ensuring stable product quality.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, specifically a cleaning system for drums. Background Technology

[0002] In cigarette production workshops, drum-type equipment is commonly used for heating, humidifying, flavoring, and adding ingredients to cigarette leaves, shreds, and stems. To facilitate cleaning of the drum-type equipment's discharge hood after production, a spray system is often installed at the outlet. After production, the discharge hood is cleaned by the spray from the spray nozzles, utilizing the flow and pressure of tap water.

[0003] However, in actual use, after the cleaning operation is completed, a certain amount of cleaning water will remain in the spray head and pipes. This water will easily drip into the drum equipment due to equipment vibration during the next production process, resulting in yellow stains and water stains, which will reduce product quality. Utility Model Content

[0004] The main purpose of this application is to provide a cleaning system for drums, which aims to solve the technical problem that a certain amount of cleaning water remains in the spray head and pipes. This water is prone to dripping into the drum equipment during the next production process due to equipment vibration, resulting in yellow stains and water stains, thus reducing product quality.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A cleaning system for drums, comprising:

[0007] Electric three-way valve;

[0008] The water inlet pipe is connected to one inlet end of the electric three-way valve;

[0009] The air intake pipe is connected to the other inlet end of the electric three-way valve;

[0010] A gas-liquid outlet pipe is connected to the outlet end of the electric three-way valve;

[0011] The nozzle is installed at the end of the gas-liquid outlet pipe away from the electric three-way valve.

[0012] Optionally, the end of the water inlet pipe away from the electric three-way valve is connected to a clean water source via a water pump; the end of the air inlet pipe away from the electric three-way valve is connected to a compressed air source.

[0013] Optionally, a shut-off valve is installed on the intake pipe.

[0014] Optionally, the end of the gas-liquid outlet pipe away from the electric three-way valve is threaded with a connector, and the end of the connector away from the gas-liquid outlet pipe is rotatably connected to the nozzle.

[0015] Optionally, an external gear ring is fitted onto one end of the nozzle near the connector. The external gear ring is meshed with a gear. A drive shaft is fixed to the gear along its axial direction. A motor is connected to the end of the drive shaft away from the gear. The motor is fixed to the outer periphery of the connector.

[0016] Optionally, the nozzle includes: a nozzle body, wherein at least one first nozzle is arranged in the circumferential direction of the nozzle body, and a second nozzle is arranged in the axial direction of the nozzle body at one end away from the connector.

[0017] The technical solution provided in this application may include the following beneficial effects: After the cleaning operation is completed using the cleaning system of this application, the electric three-way valve closes the water inlet pipe passage and opens the air inlet pipe passage, allowing compressed air to enter the gas-liquid outlet pipe through the air inlet pipe. The airflow flows along the entire length of the gas-liquid outlet pipe to the nozzle, and the air pressure is used to thoroughly blow out the cleaning water remaining in the inner wall of the pipe and the nozzle, ensuring that there is no water residue in the gas-liquid outlet pipe and the nozzle. During subsequent production, since there is no water stored in the pipe and the nozzle, even if the equipment vibrates, water droplets will not fall into the drum, thereby avoiding the generation of yellow stain smoke and water stain smoke, and ensuring stable product quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the cleaning system;

[0020] Figure 2 This is a schematic diagram of the external gear ring;

[0021] Figure 3 This is a schematic diagram of the nozzle structure.

[0022] Reference numerals in the attached drawings: 1. Electric three-way valve; 2. Water inlet pipe; 3. Air inlet pipe; 4. Gas-liquid outlet pipe; 5. Nozzle; 6. Water pump; 7. Switch shut-off valve; 8. Connector; 9. External gear ring; 10. Gear; 11. Drive shaft; 12. Motor; 13. Nozzle body; 14. First nozzle; 15. Second nozzle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] Example 1:

[0025] See Figure 1 A cleaning system for drums, comprising:

[0026] Electric three-way valve 1;

[0027] Water inlet pipe 2 is connected to one inlet end of the electric three-way valve 1;

[0028] The air intake pipe 3 is connected to the other inlet end of the electric three-way valve 1;

[0029] Gas-liquid outlet pipe 4 is connected to the outlet end of the electric three-way valve 1;

[0030] Nozzle 5 is installed at the end of the gas-liquid outlet pipe 4 away from the electric three-way valve 1.

[0031] Specifically, this cleaning system is installed at the outlet of the drum. The electric three-way valve 1 is controlled by a PLC. When the electric three-way valve 1 is switched to the water inlet passage, the cleaning water from the water inlet pipe 2 enters the air-liquid outlet pipe 4 through the three-way valve, and is finally sprayed by the nozzle 5 onto the discharge hood of the drum to rinse and clean it. When the electric three-way valve 1 is switched to the air inlet passage, the compressed air from the air inlet pipe 3 is sprayed out by the nozzle 5 through the air-liquid outlet pipe 4 to remove the water residue in the spray head and pipes after water washing.

[0032] Traditional drum cleaning systems often leave a certain amount of cleaning water in the spray heads and pipes after cleaning. This residual water can easily drip into the drum during subsequent production processes due to equipment vibration, leading to yellow stains and water-stained smoke, thus reducing product quality. The cleaning system described in this application, however, closes the water inlet pipe 2 and opens the air inlet pipe 3 after cleaning. Compressed air then enters the air-liquid outlet pipe 4 through the air inlet pipe 3. The airflow travels along the air-liquid outlet pipe 4 to the spray head 5, using air pressure to thoroughly blow out the remaining cleaning water from the inner walls of the pipes and the spray head 5, ensuring no water residue remains in the air-liquid outlet pipe 4 and the spray head 5. During subsequent production, since there is no residual water in the pipes and spray head 5, even with equipment vibration, water will not drip into the drum, thus preventing yellow stains and water-stained smoke and ensuring stable product quality.

[0033] Example 2:

[0034] See Figure 1 Based on Embodiment 1, optionally, the end of the water inlet pipe 2 away from the electric three-way valve 1 is connected to a clean water source via a water pump 6; the end of the air inlet pipe 3 away from the electric three-way valve 1 is connected to a compressed air source.

[0035] Specifically, the water inlet pipe 2 is connected to a clean water source via a water pump 6. On one hand, the pressurization function of the water pump 6 can convert the normal pressure water of the clean water source into cleaning water with sufficient pressure, ensuring that the water flows through the air-liquid outlet pipe 4 and the nozzle 5 to form a strong impact effect, effectively removing stubborn stains such as material residue and scabbed material from the drum discharge hood. On the other hand, the clean water source (such as filtered industrial water) can prevent impurities (mud, rust, etc.) from entering the pipe or nozzle 5 with the water flow, preventing blockage and affecting cleaning efficiency, and also preventing impurities from contaminating the inside of the drum. The air inlet pipe 3 is directly connected to a compressed air source (such as dry compressed air output from a factory air compressor system), which can provide sufficient and stable airflow for blowing away residual water after cleaning. The air pressure can completely discharge the water stored in the air-liquid outlet pipe 4 and the nozzle 5, avoiding yellow stains and water stains caused by residual water dripping in subsequent production. When air-liquid mixed cleaning is required, it can also provide airflow power for the air-liquid mixture, increase the impact range, and improve the cleaning effect on complex stains inside the drum.

[0036] Optionally, a switch shut-off valve 7 is installed on the air intake pipe 3.

[0037] Specifically, the shut-off valve 7 can serve as an additional master control switch for compressed air delivery, in addition to the electric three-way valve 1. For example, when only water washing is required, closing the shut-off valve can completely cut off the air path, preventing compressed air from accidentally entering the gas-liquid outlet pipe 4 and mixing with the water flow, thus ensuring stable water washing pressure. When air blowing is required, opening the shut-off valve can quickly open the air path, forming a dual control with the path switching of the electric three-way valve 1, thereby improving the flexibility of air path operation.

[0038] When the electric three-way valve 1, gas-liquid outlet pipe 4, and nozzle 5 need to be disassembled for maintenance, closing the switch shut-off valve 7 can cut off the compressed air source, preventing sudden injection of compressed air during maintenance that could cause equipment malfunction or personnel injury. This is a key protective component ensuring maintenance safety. If the compressed air source pressure fluctuates abnormally or a leak occurs in the air circuit, the switch shut-off valve 7 can be quickly closed to cut off the air source, preventing high-pressure air from damaging the seals of the electric three-way valve 1, nozzle 5, and other components. It also prevents continuous compressed air leakage from causing energy waste or safety hazards.

[0039] Example 3:

[0040] See Figure 2 and 3Based on the above embodiments, optionally, the end of the gas-liquid outlet pipe 4 away from the electric three-way valve 1 is threadedly connected to a connector 8, and the end of the connector 8 away from the gas-liquid outlet pipe 4 is rotatably connected to the nozzle 5.

[0041] Specifically, the gas-liquid outlet pipe 4 is connected to the connector 8 via threads. This threaded connection allows for easy replacement with different sizes of connector 8 or nozzle 5 as needed for cleaning, and also facilitates quick disassembly and maintenance of the cleaning system. Furthermore, the threaded connection, combined with a sealing ring, effectively enhances the sealing performance between the gas-liquid outlet pipe 4 and the connector 8, preventing leakage of compressed air or cleaning water during transport, ensuring stable gas-liquid pressure, and avoiding pressure loss that could affect the cleaning or purging effect. The rotatable connection between connector 8 and nozzle 5 provides a rotatable structural support for nozzle 5.

[0042] Optionally, an external gear ring 9 is fitted on one end of the nozzle 5 near the connector 8. The external gear ring 9 is meshed with a gear 10. A drive shaft 11 is inserted and fixed along the axis of the gear 10. A motor 12 is connected to the end of the drive shaft 11 away from the gear 10. The motor 12 is fixed to the outer periphery of the connector 8.

[0043] Specifically, the motor 12 is securely installed by fixing it to the outer periphery of the connector 8, preventing shaking during power output and providing a stable foundation for subsequent power transmission. The power of the motor 12 is transmitted to the gear 10 through the drive shaft 11. The gear 10 meshes with the external gear ring 9 fitted on the end of the nozzle 5 near the connector 8, converting the rotational power of the drive shaft 11 into the rotational motion of the external gear ring 9, thereby driving the nozzle 5 to rotate synchronously. The entire transmission structure, through the power output of the motor 12, the power transmission of the drive shaft 11, and the meshing of the gear 10 and the external gear ring 9, ultimately controls the rotational state of the nozzle 5, providing power support for the nozzle 5 to cover a larger cleaning area by rotating.

[0044] Optionally, the nozzle 5 includes: a nozzle body 13, wherein at least one first nozzle 14 is arranged in the circumferential direction of the nozzle body 13, and a second nozzle 15 is arranged in the axial direction of the nozzle body 13 at one end away from the connector 8.

[0045] Specifically, the power of the motor 12 is transmitted to the gear 10 through the transmission shaft 11. After the gear 10 meshes with the outer gear ring 9 of the nozzle 5, it drives the outer gear ring 9 and the nozzle 5 to rotate synchronously. The first nozzle 14, which is arranged circumferentially around the nozzle body 13, can spray the radial area of ​​the outer periphery of the nozzle body 13 (such as the annular area around the nozzle 5). Even if only one nozzle is arranged, it can cover the side and surrounding local area of ​​the nozzle body 13. The second nozzle 15, which is arranged along the axial direction at the end of the nozzle body 13 away from the connector 8, can spray the front area (such as the front of the nozzle body 13, away from the connector 8) along the extension direction (axial direction) of the nozzle body 13, filling the gap in the axial depth area that the circumferential nozzle cannot reach. Through the cooperation of the two, the nozzle body 13 can cover the radial periphery and the axial front end at the same time during operation, improving the coverage integrity of the target area.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleaning system for drums, characterized in that, include: Electric three-way valve; The water inlet pipe is connected to one inlet end of the electric three-way valve; The air intake pipe is connected to the other inlet end of the electric three-way valve; A gas-liquid outlet pipe is connected to the outlet end of the electric three-way valve; The nozzle is installed at the end of the gas-liquid outlet pipe away from the electric three-way valve.

2. The cleaning system for a drum according to claim 1, characterized in that, The end of the water inlet pipe furthest from the electric three-way valve is connected to a clean water source via a water pump; the end of the air inlet pipe furthest from the electric three-way valve is connected to a compressed air source.

3. The cleaning system for a drum according to claim 1, characterized in that, A shut-off valve is installed on the air intake pipe.

4. The cleaning system for a drum according to claim 1, characterized in that, The end of the gas-liquid outlet pipe away from the electric three-way valve is threaded with a connector, and the end of the connector away from the gas-liquid outlet pipe is rotatably connected to the nozzle.

5. The cleaning system for a drum according to claim 4, characterized in that, The nozzle is fitted with an external gear ring at one end near the connector. The external gear ring is meshed with a gear. The gear passes through and is fixed to a drive shaft along its axis. The end of the drive shaft away from the gear is connected to a motor. The motor is fixed to the outer periphery of the connector.

6. The cleaning system for a drum according to claim 5, characterized in that, The nozzle includes: a nozzle body, at least one first nozzle arranged along its circumference, and a second nozzle arranged along its axial direction at one end of the nozzle body away from the connector.

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