Jet cleaning system with self-cleaning device

Abstract

The utility model discloses a jet cleaning system with a self-cleaning device. The jet cleaning system is used for spraying and cleaning metal foils. Comprising a jet cleaning beam and nozzles arranged on the side wall of the jet cleaning beam, one end of the jet cleaning beam is provided with a water inlet, and the other end is provided with a water outlet; a water inlet pump, an overflow valve and a water inlet valve are arranged on a pipeline connected with the water inlet, and a water outlet valve and a negative pressure pump are arranged on a pipeline connected with the water outlet; a brush shaft is rotationally arranged in the jet cleaning beam; when the inner cavity wall of the jet cleaning beam and the nozzles need to be cleaned, the water inlet pump and the negative pressure pump are opened, the brush shaft is rotated to clean scale on the inner cavity wall of the jet cleaning beam, and in the cleaning process of the inner cavity wall of the jet cleaning beam, the water inlet valve is discontinuously closed, so that negative pressure is formed in the inner cavity of the jet cleaning beam; the negative pressure enables air to enter the inner cavity of the jet cleaning beam at an extremely high speed through the nozzles, high-speed airflow is used for self-cleaning scale scab in the through holes of the nozzles, the cleaned and fallen scale scab is discharged from the water outlet along with water flow, and therefore the problem that the nozzles are blocked is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of non-ferrous metal foil cleaning line equipment, specifically to a spray cleaning system with a self-cleaning device. Background Technology

[0002] The final spray cleaning beam in the non-ferrous metal foil spray cleaning line sprays conical water jets from nozzles to perform a final cleaning of the non-ferrous metal foil. Therefore, softened water at around 70℃ is used in the final spray cleaning beam. Over time, the use of softened water in the spray cleaning beam will cause soft, sticky scale to form on its inner wall. When this scale reaches a certain thickness, it will detach and easily clog the nozzles, resulting in poor water spraying. Additionally, scale will also form in the nozzle's orifice over time; if this scale becomes too thick, it will also clog the nozzles, causing poor water spraying. To avoid the aforementioned problems, the existing non-ferrous metal foil spray cleaning line requires periodic disassembly, cleaning, and maintenance of the spray cleaning beam at the rear end to remove scale and grime from the inner wall of the beam. This increases the workload of operators and affects the equipment's uptime. Furthermore, during operation, operators must periodically observe the nozzle spray; if a nozzle becomes clogged, the machine must be stopped, and the clogged nozzles must be manually cleared with a fine metal needle, further impacting the equipment's uptime. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model discloses a spray cleaning system with a self-cleaning device, which realizes automatic cleaning of the inner wall of the spray cleaning beam and the nozzle at the rear end of the non-ferrous metal foil spray cleaning line, prevents nozzle clogging, and reduces the workload of equipment maintenance and operators.

[0004] To achieve the aforementioned utility model objective, the present utility model adopts the following technical solution: a spray cleaning system with a self-cleaning device for spray cleaning of metal foil materials; comprising a spray cleaning beam and nozzles disposed on the side wall of the spray cleaning beam; one end of the spray cleaning beam is provided with a water inlet and the other end with a drain outlet; a brush shaft is rotatably disposed in the spray cleaning beam; bristles are evenly distributed on the outer circumference of the brush shaft; the top of the bristles abuts against the cavity wall of the spray cleaning beam; a water inlet pump, an overflow valve, and a water inlet valve are disposed on the pipe connected to the water inlet, and a drain valve and a negative pressure pump are disposed on the pipe connected to the drain outlet.

[0005] Furthermore, a rotating handwheel is provided at one end of the brush shaft, or a motor is connected to it via a coupling.

[0006] Furthermore, several rows of bristles are evenly distributed around the axis on the outer circumference of the brush shaft.

[0007] Furthermore, a position identifier is provided at the end of the brush shaft near the drain outlet.

[0008] Preferably, the coupling is provided with a position identifier.

[0009] Furthermore, the drain valve and inlet valve are manual valves or electrically controlled valves.

[0010] Due to the adoption of the above-described technical solution, this utility model has the following beneficial effects: This utility model discloses a spray cleaning system with a self-cleaning device, including a spray cleaning beam and nozzles disposed on the side wall of the spray cleaning beam; one end of the spray cleaning beam is provided with a water inlet and the other end with a drain outlet; a water inlet pump, an overflow valve, and a water inlet valve are provided on the pipe connected to the water inlet, and a drain valve and a negative pressure pump are provided on the pipe connected to the drain outlet; a brush shaft is rotatably disposed in the spray cleaning beam; when it is necessary to clean the inner wall of the spray cleaning beam and the nozzles, the water inlet pump and the negative pressure pump are turned on, and the rotating brush shaft cleans the spray cleaning system. During the jet cleaning process, the water inlet valve is intermittently closed to create negative pressure within the jet cleaning beam's inner cavity. This negative pressure forces air through the nozzles at extremely high speeds into the inner cavity, where the high-speed airflow self-cleans the scale and grime in the nozzle orifices. The cleaned and detached scale and grime are then discharged from the drain outlet with the water flow, thus preventing nozzle clogging. This jet cleaning system with a self-cleaning device reduces equipment maintenance and the workload for operators, increases the cleaning frequency and efficiency of the jet cleaning process on the inner cavity wall of the beam and the nozzles, thereby improving equipment uptime. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the spray cleaning system with a self-cleaning device according to Embodiment 1;

[0012] Figure 2 This is a schematic diagram of the spray cleaning system with a self-cleaning device in Embodiment 2;

[0013] Figure 3 This is a schematic diagram of the brush shaft.

[0014] In the diagram: 1. Spray cleaning beam; 2. Nozzle; 3. Brush shaft; 3.1. Brush shaft body; 3.2. Brush bristles; 4. Water inlet pump; 5. Coupling; 6. Motor; 7. Drain valve; 8. Negative pressure pump; 9. Water inlet valve; 10. Overflow valve; 11. Rotary handwheel. Detailed Implementation

[0015] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0016] A self-cleaning spray cleaning system is provided for spray cleaning of metal foil. It includes a spray cleaning beam 1 and nozzles 2 disposed on the side wall of the spray cleaning beam. One end of the spray cleaning beam 1 has a water inlet, and the other end has a drain outlet. A brush shaft 3 is rotatably mounted within the spray cleaning beam 1. Brush bristles 3.2 are evenly distributed on the outer circumference of the brush shaft 3. The tops of the brush bristles 3.2 abut against the cavity wall of the spray cleaning beam 1. A water pump 4, an overflow valve 10, and a water inlet valve 9 are installed on the pipe connected to the water inlet, and a drain valve 7 and a negative pressure pump 8 are installed on the pipe connected to the drain outlet. When cleaning of the inner cavity wall of the spray cleaning beam 1 and the nozzles 2 is required, the water pump 4 and the water inlet valve 9 on the pipe connected to the water inlet of the spray cleaning beam 1 are opened to supply water to the spray cleaning beam 1, and the drain valve 7 and the negative pressure pump 8 on the pipe connected to the drain outlet are opened, allowing water in the spray cleaning beam 1 to drain out from the drain outlet. The brush shaft 3 is rotated, utilizing the brush bristles on the brush shaft 3... 3.2 The inner wall of the spray cleaning beam 1 is cleaned. During the cleaning process, the water inlet valve 9 is intermittently closed to stop the water supply to the spray cleaning beam 1, creating a negative pressure in the inner cavity. This negative pressure causes air to enter the inner cavity of the spray cleaning beam 1 through the nozzle 2 at extremely high speed. As the high-speed airflow passes through the nozzle 2, it performs self-cleaning on the nozzle 2. The detached scale is discharged from the drain with the water flow, preventing the nozzle 2 from becoming clogged. When the water inlet valve 9 is closed, the water pumped by the water pump 4 flows back to the water storage tank through the overflow valve 10, preventing pressure surges in the inlet connection pipe and overload of the water pump 4. This spray cleaning system with a self-cleaning device requires less work and has high efficiency in cleaning the inner wall of the spray cleaning beam and the nozzle 2, thus increasing the cleaning frequency of scale on the inner wall of the spray cleaning beam and the nozzle 2, thereby preventing the nozzle 2 from becoming clogged.

[0017] Furthermore, a rotating handwheel 11 is provided at one end of the brush shaft 3, which makes it convenient for operators to manually rotate the brush shaft 3; a motor 6 is connected to one end of the brush shaft 3 or through a coupling 5, and the motor 6 drives the brush shaft 3 to rotate, which further reduces the workload of operators.

[0018] Furthermore, several rows of bristles 3.2 are evenly distributed around the axis on the outer circumference of the brush shaft 3, so a water flow channel will naturally form between two adjacent rows of bristles 3.2; when the brush shaft 3 is stationary, the water flow channel between two rows of bristles 3.2 stops at the nozzle 2, reducing the resistance of water flow through the bristles 3.2.

[0019] Furthermore, the brush shaft 3 is provided with a position identifier near the motor 5. This identifier is a dot, triangle, or arrow, used to indicate whether the water flow channel between the two rows of bristles 3.2 is stopped at the nozzle 2 when the brush shaft 3 is stationary.

[0020] Preferably, the coupling 5 is provided with a position identifier.

[0021] Drain valve 7 and water inlet valve 9 are manual or electrically controlled valves. When drain valve 7 and water inlet valve 9 are manual valves, operators need to participate in the cleaning of scale on the inner wall of the beam by spraying, and manually open or close drain valve 7 and water inlet valve 9. When drain valve 7 and water inlet valve 9 are electrically controlled valves, the control system of the non-ferrous metal foil cleaning line controls drain valve 7 and water inlet valve 9 to open or close automatically and in coordination, thereby realizing the full automation of the cleaning operation of scale on the inner wall of the beam by spraying.

[0022] Example 1: See the appendix to the instruction manual. Figure 1 :

[0023] A spray cleaning system with a self-cleaning device is used for spray cleaning of metal foil. It includes a spray cleaning beam 1, nozzles 2 disposed on the side wall of the spray cleaning beam, and a brush shaft 3 rotatably disposed within the spray cleaning beam 1. The spray cleaning beam 1 has a water inlet at its left end and a drain outlet at its right end. The water inlet is connected to a soft water storage tank via a pipe, and the water inlet pipe is equipped with a water pump 4, an overflow valve 10, and a water inlet valve 9. The drain outlet is connected to a wastewater tank via a pipe, and the drain outlet pipe is equipped with a drain valve 7 and a negative pressure pump 8. Both the water inlet valve 9 and the drain valve 7 are manual valves. The brush shaft 3 includes a brush shaft body 3.1 and brush bristles 3.2. The brush bristles 3.2 are evenly distributed on the outer circumference of the brush shaft body 3.1, and the tops of the brush bristles 3.2 abut against the cavity wall of the spray cleaning beam 1. A rotating handwheel 11 is fixedly disposed on the brush shaft 3 near the drain outlet end.

[0024] See the instruction manual appendix Figure 3 Preferably, the bristles 3.2 are arranged in three or four rows, and the three or four rows of bristles 3.2 are evenly distributed around the axis of the brush shaft body 3.1 on the outer circumference, and a water flow channel is naturally formed between two adjacent rows of bristles 3.2. When the bristles 3.2 are arranged in multiple rows, circular, triangular or arrow-shaped identifiers are laser-etched on the outer circular surface of the brush shaft 3 near the drain outlet end (or the outer edge of the rotating handwheel 11) to indicate that when the brush shaft 3 stops rotating, the position of the water flow channel (any one) between two adjacent rows of bristles 3.2 stops at the nozzle 2.

[0025] Every 12 hours or so, the non-ferrous metal foil spray cleaning line is stopped for manual cleaning of the spray cleaning beam 1. During manual cleaning, the manual valves at the inlet and outlet are manually opened, and then the inlet pump 4 and negative pressure pump 8 are started simultaneously. Soft water flows in from the inlet and out from the outlet of the spray cleaning beam 1. The operator rotates the handwheel 11 to turn the brush shaft 3, and the bristles 3.2 on the brush shaft 3 clean the inner wall of the spray cleaning beam 1 cavity, sweeping off the deposits and debris, which are then discharged with the soft water from the outlet. Every 2-3 minutes during manual cleaning of the spray cleaning beam 1, the manual valve at the inlet is manually closed for 10-20 seconds, and then reopened. During the specified time, the water pumped out by the inlet pump 4 flows back to the water storage tank through the overflow valve 10, stopping the water supply to the spray cleaning beam 1. The negative pressure pump 8 continues to work, creating a negative pressure in the inner cavity of the spray cleaning beam 1. The negative pressure causes air to enter the inner cavity of the spray cleaning beam 1 through the nozzle 2 at extremely high speed. When the extremely high-speed airflow passes through the nozzle 2, it will self-clean the inner wall of the nozzle 2 through hole, removing the scale and sludge in the nozzle 2 through hole. The manual cleaning operation of the spray cleaning beam 1 lasts for 5-10 minutes. After the manual cleaning operation of the spray cleaning beam 1 is completed, manually close the manual valve at the drain end and the negative pressure pump 8, and set the position indicator on the rotating handwheel 11 to the horizontal position so that the water flow channel (any one) between two adjacent rows of bristles 3.2 stops at the nozzle 2.

[0026] Example 2: See the appendix to the instruction manual. Figure 2 :

[0027] In this embodiment, an inlet valve 9, an overflow valve 10, and an inlet pump 4 are sequentially installed in the pipeline from the inlet of the spray cleaning beam 1 to the soft water storage tank. A drain valve 7 and a negative pressure pump 8 are installed on the pipeline from the outlet of the spray cleaning beam 1 to the sewage tank. Both the inlet valve 9 and the drain valve 7 are electrically controlled valves. A motor 6 is connected to the brush shaft 3 near the outlet via a coupling 5. The inlet valve 9, the inlet pump 4, the drain valve 7, the negative pressure pump 8, and the motor 6 are all electrically connected to the control system of the non-ferrous metal foil spray cleaning line. The outer edge of the coupling 5 is laser-etched with circular, triangular, or arrow-shaped position markers.

[0028] After each shift, the non-ferrous metal foil spray cleaning line automatically performs a cleaning operation on spray cleaning beam 1 under the control of the non-ferrous metal foil spray cleaning line control system. The automatic cleaning operation of spray cleaning beam 1 is carried out automatically according to the following procedure:

[0029] S1. The electric inlet valve and the electric drain valve are kept in the connected state. The inlet pump 4 and the negative pressure pump 8 work at the same time. The motor 6 rotates and drives the brush shaft 3 to rotate for 10-20 seconds. The bristles 3.2 on the brush shaft 3 clean the inner wall of the spray cleaning beam 1 cavity, sweep off the dirt and grime attached to the inner wall of the cavity, and discharge it with the soft water from the drain outlet.

[0030] S2. Close the electronically controlled water inlet valve for 10-20 seconds. The soft water pumped out by the water inlet pump 4 flows back to the soft water storage tank through the overflow valve 10. The negative pressure pump 8 continues to work, forming a negative pressure in the inner cavity of the spray cleaning beam 1. The negative pressure causes air to enter the inner cavity of the spray cleaning beam 1 through the nozzle 2 at extremely high speed. The high-speed airflow performs self-cleaning on the through hole of the nozzle 2.

[0031] S3, repeat S1 and S2 in a cycle; the automatic cleaning operation of beam 1 by spray cleaning lasts for 5-10 minutes;

[0032] S4. After the automatic cleaning operation stops, check the stop position of the position indicator of coupling 5. If the position indicator is not in the horizontal position, manually (or with a tool) move coupling 5 to make the position indicator of coupling 5 stop in the horizontal position.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, it should be understood that this utility model is intended to protect all changes and improvements of the embodiments that fall within the scope of this concept and utility model.

[0034] The parts of this utility model not described in detail are existing technologies.

Claims

1. A spray cleaning system with a self-cleaning device for spray cleaning of metal foil; comprising a spray cleaning beam (1) and nozzles (2) disposed on the side wall of the spray cleaning beam; one end of the spray cleaning beam (1) is provided with a water inlet and the other end with a drain outlet; a brush shaft (3) is rotatably disposed in the spray cleaning beam (1); bristles (3.2) are evenly distributed on the outer circumference of the brush shaft (3); the top of the bristles (3.2) abuts against the cavity wall of the spray cleaning beam (1); characterized in that: The inlet pipe is equipped with an inlet pump (4), an overflow valve (10), and an inlet valve (9), and the outlet pipe is equipped with a drain valve (7) and a negative pressure pump (8).

2. The jet cleaning system with self-cleaning device according to claim 1, characterized in that: One end of the brush shaft (3) is equipped with a rotating handwheel (11), or is connected to a motor (6) via a coupling (5).

3. The jet cleaning system with self-cleaning device according to claim 2, characterized in that: Several rows of bristles (3.2) are evenly distributed around the axis on the outer circumference of the brush shaft (3).

4. The jet cleaning system with self-cleaning device according to claim 3, characterized in that: The brush shaft (3) has a position identifier at the end near the drain outlet.

5. The jet cleaning system with self-cleaning device according to claim 3, characterized in that: The coupling (5) is equipped with a position identifier.

6. The jet cleaning system with self-cleaning device according to claim 1, characterized in that: The drain valve (7) and the inlet valve (9) are manual valves or electrically controlled valves.

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