Automatic cleaning device for flake alkali machine

Abstract

The present disclosure relates to a tablet alkali machine automatic cleaning device, comprising a cleaning pipeline and an automatic control system, the cleaning pipeline comprises a main rod, a first branch rod and a second branch rod, the first branch rod and the second branch rod are respectively located on the opposite sides of the tablet alkali machine, and are connected with the main rod, the automatic control system comprises a liquid flow regulating valve, the main rod is provided with a first conveying hose, the first conveying hose is connected with the liquid flow regulating valve, the first branch rod and the second branch rod are respectively provided with a second conveying hose which is communicated with the first conveying hose, a plurality of cleaning nozzles are arranged on the second conveying hose at intervals, and the automatic control system is configured to: after the tablet alkali machine stops running for a preset time, control the liquid flow regulating valve to open, so as to automatically start the cleaning program. Through the above technical scheme, the tablet alkali machine automatic cleaning device can automatically clean the tablet alkali machine, improve the cleaning efficiency, and avoid the operator to contact the high-temperature and corrosive equipment, so as to eliminate the safety hidden trouble.

Description

Technical Field

[0001] This disclosure relates to the field of caustic soda flake machine cleaning technology, specifically, to an automatic cleaning device for caustic soda flake machines. Background Technology

[0002] The caustic soda flake machine is used in the chlor-alkali chemical industry for the production of caustic soda flakes (chemical name: sodium hydroxide). High-temperature molten 98% caustic soda enters the machine and, as the drum inside cools and rotates, the molten caustic soda is rolled up onto its surface, forming an alkali film. This solidified film is scraped off by a scraper, forming caustic soda flakes. The flakes are then transported from the silo to the packaging scale for packaging. Because caustic soda is highly corrosive and its molten form readily reacts with carbon dioxide in the air to form sodium carbonate impurities, during long-term operation, alkali scale, sodium carbonate crystals, and residual caustic soda easily accumulate on the drum surface, scraper edges, and internal conveying channels. If these deposits are not removed promptly, they will not only directly affect the quality of the caustic soda flakes but also reduce the heat transfer efficiency of the drum, leading to a significant increase in energy consumption. Furthermore, the accumulation of deposits may cause accelerated scraper wear, equipment jamming, and other malfunctions, sometimes even requiring shutdown for maintenance, severely impacting production continuity. Currently, the industry mainly uses manual cleaning for caustic soda flake machines. This involves operators using high-pressure water guns, wire brushes, and other tools to clean critical components after the machine is shut down. This method is inefficient, severely impacting production schedules. Furthermore, the machine surface remains warm and contains residual alkali after shutdown, posing a safety hazard of chemical burns and high-temperature scalds for operators who come into direct contact with it. Utility Model Content

[0003] The purpose of this disclosure is to provide an automatic cleaning device for caustic soda flake machines. This device can automatically clean the caustic soda flake machines, improving cleaning efficiency and avoiding operator contact with high-temperature and corrosive equipment, thus eliminating safety hazards.

[0004] To achieve the above objectives, this disclosure provides an automatic cleaning device for a caustic soda flake machine, including a cleaning pipeline and an automatic control system. The cleaning pipeline includes a main rod, a first branch rod, and a second branch rod. The first branch rod and the second branch rod are located on opposite sides of the caustic soda flake machine and are both connected to the main rod. The automatic control system includes a liquid flow regulating valve. A first conveying hose is arranged on the main rod, and the liquid flow regulating valve is connected to the first conveying hose. Second conveying hoses connected to the first conveying hose are arranged on the first branch rod and the second branch rod, respectively. Multiple cleaning nozzles are spaced apart on the second conveying hoses. The automatic control system is configured to: after a preset time when the caustic soda flake machine stops running, control the liquid flow regulating valve to open to automatically start the cleaning program.

[0005] Optionally, the first branch rod is located in the area where the scraper of the caustic soda flake machine is located, and is arranged parallel to the length direction of the scraper.

[0006] Optionally, the second branch rod is located in the area where the drum of the caustic soda flake machine is located.

[0007] Optionally, the main rod includes a horizontal section and two vertical sections vertically disposed at both ends of the horizontal section. The two vertical sections are respectively located on opposite sides of the caustic soda flake machine, and the first branch rod and the second branch rod are respectively connected to the vertical sections on the corresponding sides through connectors.

[0008] Optionally, the connector includes a stud and a nut. The stud is provided at the ends of the first branch rod and the second branch rod. A plurality of adjustment holes are provided at intervals along the vertical direction on the vertical section. The stud passes through the corresponding adjustment hole and is threadedly connected to the nut to fix the first branch rod or the second branch rod to the corresponding vertical section.

[0009] Optionally, the number of the first branch pole and the second branch pole is at least two.

[0010] Optionally, the automatic control system further includes a PLC controller and an operating status sensor. The operating status sensor is electrically connected to the motor controller of the caustic soda flake machine and is used to collect the start and stop signals of the caustic soda flake machine and transmit them to the PLC controller. The liquid flow regulating valve is electrically connected to the PLC controller, and the PLC controller is used to control the opening and closing of the liquid flow regulating valve and regulate the flow rate according to the start and stop signals.

[0011] Through the above technical solution, the automatic cleaning device for caustic soda flakes disclosed herein includes a cleaning pipeline and an automatic control system. The cleaning pipeline includes a main rod, a first branch rod, and a second branch rod. The first and second branch rods are located on opposite sides of the caustic soda flakes machine and are both connected to the main rod. A first conveying hose is arranged on the main rod, and second conveying hoses connected to the first conveying hose are arranged on the first and second branch rods, respectively, achieving double-sided coverage cleaning and avoiding blind spots in single-pipeline cleaning, resulting in a more comprehensive cleaning range. The automatic control system includes a liquid flow regulating valve. Since the automatic control system is configured to open the liquid flow regulating valve after a preset time of shutdown of the caustic soda flakes machine to automatically start the cleaning program, this automatic cleaning device for caustic soda flakes machine can automatically clean the machine during production breaks (downtime) without occupying additional production time. Furthermore, the cleaning is timely and efficient, significantly reducing the workload and difficulty of subsequent cleaning. In addition, the automatic cleaning device for caustic soda flakes machine disclosed herein requires no manual intervention during use, greatly reducing the safety risks for personnel compared to traditional manual cleaning methods.

[0012] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the automatic cleaning device for the caustic soda flake machine provided in the embodiments of this disclosure; Figure 2 This is another structural schematic diagram of the automatic cleaning device for the caustic soda flake machine provided in the embodiments of this disclosure; Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0014] Explanation of reference numerals in the attached drawings: 1. Main rod; 11. Horizontal section; 12. Vertical section; 121. Adjustment hole; 2. First branch rod; 3. Second branch rod; 4. Caustic soda flake machine; 41. Scraper; 42. Drum; 43. Side scraper; 44. Hopper; 45. Square caustic soda tank; 46. Arc-shaped pot; 5. Liquid flow regulating valve; 6. Cleaning nozzle; 7. First conveying hose; 8. Connector. Detailed Implementation

[0015] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0016] In this disclosure, unless otherwise stated, the terms "first," "second," etc., used herein are for distinguishing one element from another and do not have sequential or material significance. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0017] According to exemplary embodiments of this disclosure, reference is made to Figures 1 to 3As shown, an automatic cleaning device for a caustic soda flake machine is provided, including a cleaning pipeline and an automatic control system. The cleaning pipeline includes a main rod 1, a first branch rod 2, and a second branch rod 3. The first branch rod 2 and the second branch rod 3 are located on opposite sides of the caustic soda flake machine 4 and are both connected to the main rod 1. The automatic control system includes a liquid flow regulating valve 5. A first conveying hose 7 is arranged on the main rod 1, and the liquid flow regulating valve 5 is connected to the first conveying hose 7. Second conveying hoses connected to the first conveying hose 7 are arranged on the first branch rod 2 and the second branch rod 3, respectively. Multiple cleaning nozzles 6 are arranged at intervals on the second conveying hoses. The automatic control system is configured to open the liquid flow regulating valve 5 after the caustic soda flake machine 4 has stopped running for a preset time to automatically start the cleaning program.

[0018] Through the above technical solution, the automatic cleaning device for caustic soda flakes disclosed herein includes a cleaning pipeline and an automatic control system. The cleaning pipeline includes a main rod 1, a first branch rod 2, and a second branch rod 3. The first branch rod 2 and the second branch rod 3 are located on opposite sides of the caustic soda flakes 4 and are both connected to the main rod 1. A first conveying hose 7 is arranged on the main rod 1, and second conveying hoses connected to the first conveying hose 7 are arranged on the first branch rod 2 and the second branch rod 3, respectively, achieving double-sided coverage cleaning and avoiding blind spots in cleaning a single pipeline, thus providing a more comprehensive cleaning range. The automatic control system includes a liquid flow regulating valve 5. Since the automatic control system is configured to open the liquid flow regulating valve 5 after the caustic soda flakes 4 has stopped running for a preset time to automatically start the cleaning program, this automatic cleaning device for caustic soda flakes can automatically clean the caustic soda flakes 4 during production breaks (downtime), without requiring additional production time. Furthermore, the cleaning is timely and efficient, significantly reducing the workload and difficulty of subsequent cleaning. In addition, the automatic cleaning device for caustic soda flakes disclosed herein requires no manual intervention during use, greatly reducing the safety risks for personnel compared to traditional manual cleaning methods.

[0019] In this disclosure, the main rod 1 is used to support and install the first delivery hose 7; the first branch rod 2 and the second branch rod 3 are used to install and support the first delivery hose 7 so as to arrange the cleaning nozzle 6. In addition, it should be noted that the first delivery hose 7 and the second delivery hose of this disclosure are both made of corrosion-resistant materials (such as polytetrafluoroethylene and alkali-resistant rubber).

[0020] According to an exemplary embodiment of this disclosure, the automatic control system may further include a PLC controller and an operating status sensor (not shown in the figure). The operating status sensor is electrically connected to the motor controller of the caustic soda flake machine 4 and is used to collect the start and stop signals of the caustic soda flake machine 4 and transmit them to the PLC controller. The liquid flow regulating valve 5 is electrically connected to the PLC controller, and the PLC controller is used to control the opening and closing of the liquid flow regulating valve 5 and regulate the flow rate according to the start and stop signals.

[0021] According to exemplary embodiments of this disclosure, referring to Figures 1 to 3 As shown, the first dividing rod 2 is positioned in the area where the scraper 41 of the caustic soda flake machine 4 is located, and is arranged parallel to the length of the scraper 41. With this arrangement, the cleaning nozzle 6 on the first dividing rod 2 can cover the area where the scraper 41 is located, thus thoroughly cleaning the scraper 41.

[0022] According to exemplary embodiments of this disclosure, referring to Figures 1 to 3 As shown, the second branch rod 3 is located in the area of ​​the drum 42 of the caustic soda flake machine 4. The drum 42 is the core component for the formation of the caustic soda film. The deposits on its surface will reduce the heat transfer efficiency (the drum 42 needs to be cooled to solidify the molten caustic soda), resulting in increased energy consumption. By specifically setting the second branch rod 3 in the area of ​​the drum 42, the deposits on the surface of the drum 42 can be cleaned, and the deposits can be prevented from hindering the heat dissipation of the drum 42.

[0023] According to exemplary embodiments of this disclosure, referring to Figures 1 to 3 As shown, the main rod 1 may include a horizontal section 11 and two vertical sections 12 vertically arranged at both ends of the horizontal section 11. The two vertical sections 12 are located on opposite sides of the caustic soda flake machine 4. The first branch rod 2 and the second branch rod 3 are respectively connected to the corresponding vertical sections 12 via connectors 8. Through the above arrangement, the main rod 1 can adapt to the installation space on both sides of the caustic soda flake machine 4 without modifying the caustic soda flake machine 4, reducing the difficulty of device installation. The vertical sections 12 serve as direct supports and media conveying interfaces for the first branch rod 2 and the second branch rod 3, ensuring the stable installation of the first branch rod 2 and the second branch rod 3.

[0024] According to an exemplary embodiment of this disclosure, the connector 8 may include studs and nuts. Studs are provided at the ends of both the first branch rod 2 and the second branch rod 3. Multiple adjusting holes 121 are spaced apart along the vertical direction on the vertical section 12. The studs pass through the corresponding adjusting holes 121 and are threadedly connected to the nuts to fix the first branch rod 2 or the second branch rod 3 onto the corresponding vertical section 12. This configuration allows for fine-tuning of the installation height of the branch rods by selecting different height adjusting holes 121, better adapting to the actual positional deviations of the scraper 41 and the drum 42, and ensuring that the distance between the nozzle and the part to be cleaned is always within the optimal cleaning range (e.g., 100mm to 150mm).

[0025] Furthermore, in this disclosure, a stud and nut connection is used, which allows the first branch rod 2 and the second branch rod 3 to be angled, thereby adjusting the spray angle of the cleaning nozzle 6 (e.g., 110° to 150°) to better match the parts to be cleaned, improve the spray accuracy of the cleaning nozzle 6, and thus improve cleaning efficiency.

[0026] According to an exemplary embodiment of this disclosure, the number of first branch rods 2 and second branch rods 3 is at least two. That is, the number of first branch rods 2 located on the same side of the caustic soda flake machine 4 can be two or more, which can cover a larger cleaning range and enable the simultaneous cleaning of multiple components (e.g., scraper 41, side scraper 43, and hopper 44); similarly, the number of second branch rods 3 located on the same side of the caustic soda flake machine 4 can also be two or more, which can also enable the simultaneous cleaning of multiple components (e.g., drum 42, square caustic soda tank 45, and arc-shaped pot 46).

[0027] Reference Figures 1 to 3 As shown, the working principle of the automatic cleaning device for caustic soda flake machines disclosed in this invention is as follows: First, the inlet of the first delivery hose 7 is connected to the cleaning medium source (such as a secondary condensate storage tank) via the pump body. The operating status sensor monitors the motor current and speed of the caustic soda flake machine 4. After determining that the machine should stop, a stop signal is sent to the PLC controller. After a preset delay (e.g., 30-40 minutes), the PLC instructs the liquid flow regulating valve 5 on the main rod 1 to open, thereby automatically starting the cleaning program. At this time, the surface temperature of the equipment drops, preventing high-temperature damage to the hose. Meanwhile, the deposits are not completely solidified within 30-40 minutes, making cleaning easier. Then... The cleaning medium (such as secondary condensate) is diverted via the first conveying hose 7 on the main rod 1 to the second conveying hoses on the first branch rod 2 and the second branch rod 3. Then, it is sprayed through the cleaning nozzle 6 onto various parts of the caustic soda flake machine 4 to be cleaned, such as the scraper 41, side scraper 43, hopper 44, drum 42, square caustic soda tank 45 and arc-shaped pot 46, to achieve automatic cleaning of the caustic soda flake machine 4. The height of the first branch rod 2 and the second branch rod 3 and the angle of the cleaning nozzle 6 can be finely adjusted through the stud, nut and adjusting hole 121 to ensure that the cleaning nozzle 6 is in the optimal cleaning range.

[0028] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0029] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0030] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An automatic cleaning device for a caustic soda flake machine, characterized in that, The system includes a cleaning pipeline and an automatic control system. The cleaning pipeline includes a main rod (1), a first branch rod (2), and a second branch rod (3). The first branch rod (2) and the second branch rod (3) are located on opposite sides of the caustic soda machine (4) and are both connected to the main rod (1). The automatic control system includes a liquid flow regulating valve (5). A first conveying hose (7) is arranged on the main rod (1). The liquid flow regulating valve (5) is connected to the first conveying hose (7). A second conveying hose connected to the first conveying hose (7) is arranged on the first branch rod (2) and the second branch rod (3). Multiple cleaning nozzles (6) are spaced apart on the second conveying hose. The automatic control system is configured to open the liquid flow regulating valve (5) after the caustic soda machine (4) has stopped running for a preset time to automatically start the cleaning program.

2. The automatic cleaning device for a caustic soda flake machine according to claim 1, characterized in that, The first branch rod (2) is located in the area of ​​the scraper (41) of the caustic soda machine (4) and is arranged parallel to the length direction of the scraper (41).

3. The automatic cleaning device for a caustic soda flake machine according to claim 2, characterized in that, The second branch rod (3) is located in the area of ​​the drum (42) of the caustic soda machine (4).

4. The automatic cleaning device for a caustic soda flake machine according to claim 3, characterized in that, The main rod (1) includes a horizontal section (11) and two vertical sections (12) vertically arranged at both ends of the horizontal section (11). The two vertical sections (12) are located on opposite sides of the caustic soda machine (4). The first branch rod (2) and the second branch rod (3) are respectively connected to the vertical section (12) on the corresponding side through a connector (8).

5. The automatic cleaning device for a caustic soda flake machine according to claim 4, characterized in that, The connector (8) includes a stud and a nut. The stud is provided at the ends of the first branch rod (2) and the second branch rod (3). Multiple adjustment holes (121) are provided at intervals along the vertical direction on the vertical section (12). The stud passes through the corresponding adjustment hole (121) and is threadedly connected to the nut to fix the first branch rod (2) or the second branch rod (3) on the corresponding vertical section (12).

6. The automatic cleaning device for a caustic soda flake machine according to claim 5, characterized in that, The number of the first branch rod (2) and the second branch rod (3) is at least two.

7. The automatic cleaning device for a caustic soda flake machine according to any one of claims 1 to 6, characterized in that, The automatic control system also includes a PLC controller and an operating status sensor. The operating status sensor is electrically connected to the motor controller of the caustic soda flake machine (4) and is used to collect the start and stop signals of the caustic soda flake machine (4) and transmit them to the PLC controller. The liquid flow regulating valve (5) is electrically connected to the PLC controller. The PLC controller is used to control the opening and closing of the liquid flow regulating valve (5) and regulate the flow according to the start and stop signals.

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