A corrosive liquid waste container cleaning device and waste liquid synchronous treatment method

Abstract

The present invention discloses a device for cleaning a container of corrosive liquid waste and a method for synchronously treating waste liquid. A conveying assembly is used to deliver corrosive liquid waste containers in and out. A sealed space is provided between the downstream of the container delivery device and the upstream of the container delivery device, containing a spray assembly and an exhaust assembly communicating with the outside world. A clamping and flipping mechanism is configured to extend forward and backward in the sealed space to clamp the container based on a signal indicating that the container has reached a designated position in a sealing door, and then flip the container in a sealed environment after returning it to the sealed space. During the cleaning process, waste liquid is collected at the bottom of the sealed space. The device possesses certain corrosion resistance and sealing properties, a sophisticated and reliable automated control strategy, and an efficient cleaning liquid circulation and filtration system, meeting the high standards and stringent requirements for corrosive waste liquid treatment in industrial production.

Description

Technical Field

[0001] The present application relates to the technical field of corrosive liquid waste treatment, and in particular to a corrosive liquid waste container cleaning device and a waste liquid synchronous treatment method. Background Art

[0002] With the acceleration of industrial production, the development of efficient, safe and stable corrosive liquid waste container dumping and cleaning equipment has become the key to solving waste liquid treatment problems in industries such as chemical, electroplating, and metal surface treatment.

[0003] The liquid waste container cleaning device of the existing technology has obvious shortcomings when dealing with corrosive waste liquid. Its mechanical design does not fully consider the characteristics of corrosive waste liquid. The designed device still requires manual placement of the liquid waste container into the device during the cleaning process, and during the cleaning process, the splashing corrosive waste liquid is extremely likely to cause damage to the cleaning equipment itself, and the volatile harmful gases will also cause harm to nearby employees. On the one hand, it will cause unnecessary trouble, and on the other hand, it will greatly reduce the life of the equipment. At the same time, its automated control strategy lacks precision and reliability when dealing with corrosive waste liquid, and cannot ensure the safety and stability of the cleaning process. The filtering effect and cleaning efficiency of the cleaning liquid circulation and filtration system when dealing with corrosive waste liquid need to be improved urgently. In addition, safety technology is limited to basic protective measures and fails to fully address the special safety risks that may be caused by corrosive waste liquid, such as gas leakage corroding surrounding buildings and equipment. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a corrosive liquid waste container cleaning device and a waste liquid synchronous treatment method to improve the shortcomings of the current cleaning device and cleaning treatment method, and have certain corrosion resistance and sealing properties, precise and reliable automation control strategies, efficient cleaning liquid circulation and filtration systems, and comprehensive and effective sealing safety strategies to meet the high standards and strict requirements of industrial production for corrosive waste liquid treatment.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A device for cleaning a container of corrosive liquid waste, characterized by comprising:

[0007] The conveying assembly is composed of a container feeding device at the lower level and a container discharging device at the upper level, which are spatially distributed and combined, and is used to feed and discharge corrosive liquid waste containers;

[0008] A sealed space is located behind the conveying assembly, between the downstream of the container feeding device and the upstream of the container discharging device, contains a spray assembly, and is provided with an exhaust assembly to communicate with the outside world;

[0009] The gripping and flipping mechanism is located at the rear of the sealed space and includes a plurality of gripping terminals arranged corresponding to the spraying points of the spray assembly in the sealed space. Each gripping and flipping terminal is configured to extend in the front-to-back direction of the sealed space to grip the container according to the instruction that the container reaches the designated position of the sealing door, and then bring the container back into the sealed space and flip the container in the sealed environment;

[0010] The spray assembly is configured to clean the container after the container flipping operation, and waste liquid is collected at the bottom of the sealed space during the cleaning process.

[0011] In the above technical solution, the spray assembly is configured to clean the container at least once after at least one flipping operation, thereby ensuring multiple flipping and pouring, and / or multiple cleanings to ensure a cleaning effect.

[0012] In the above technical solution, the spray components are arranged in multiple groups in the sealed container, and each group includes multiple high-pressure spray heads respectively arranged in upper and lower positions.

[0013] In the above technical solution, in the same group of spray assemblies, the number of spray heads located at the top is greater than that at the bottom, and the upper spray heads are evenly distributed around the lower spray heads, and the spray head distribution range is equal to or slightly larger than the container cup mouth.

[0014] In the above technical solution, each clamping and flipping terminal extends into the sealed space through the clamping terminal fixed shaft, and can move forward and backward, move up and down, and flip in the sealed space.

[0015] In the above technical solution, a corrosion-resistant toughness shield window is provided behind the sealed space to accommodate the passage of the clamping terminal fixed shaft and retain an appropriate range of motion.

[0016] The accordion cover is preferred, which has a certain degree of sealing on the one hand, and is not afraid of corrosion from chlorine-containing waste liquid on the other hand, while also meeting the movement requirements in the cleaning process.

[0017] In the above technical solution, each clamping and flipping terminal includes a rotating shaft platform fixed to the free end of the telescopic cylinder, a clamping part fixed to the end of the rotating shaft and capable of flipping, and the rotating shaft fixing platform is configured to drive the clamping part to move up and down; the rotating shaft serves as the fixed axis of the clamping terminal and extends into the sealed space and can move back and forth and up and down; the shape of each clamping part matches the outer wall of the container.

[0018] In the above technical solution, the sealed space includes a sealed shell, and an inlet sealing door and an outlet sealing door on the surface facing the conveying component; the inlet sealing door is located on the lower layer, corresponding to the downstream of the container feeding device, and the outlet sealing door is located on the upper layer, corresponding to the upstream of the container feeding device.

[0019] In the above technical solution, the inlet sealing door and the outlet sealing door are multi-fold automatic sliding doors driven by a driving device.

[0020] In the above technical solution, at least one section or point of the drainage pipe for collecting waste liquid at the bottom of the sealed space is lower than the bottom plane to ensure that the waste liquid will not flow back into the sealed space or overflow and leak, thereby fully ensuring environmental safety.

[0021] A method for cleaning a corrosive liquid waste container and synchronously collecting the waste liquid comprises the following steps:

[0022] S1: The liquid waste container is transported to the entrance sealing door through the container feeding device on the lower layer. After reaching the designated position, the entrance sealing door automatically opens;

[0023] S2: The clamping terminal extends from the sealed space toward the container, clamps the container, and then returns to the cleaning station in the sealed space. The entrance sealing door automatically closes.

[0024] S3: The clamping terminal holds the container and slowly rotates it 180 degrees. After the waste liquid is dumped, the spray assembly starts to flush from the bottom to the top and in all directions, and the flushing continues;

[0025] S4: After the shower is finished, the spray assembly is turned off, and the clamping terminal holds the container and slowly rotates 180 degrees again to return to the initial position;

[0026] S5: The clamping terminal drives the container to the position of the outlet sealing door, and the outlet sealing door opens automatically;

[0027] S6: The clamping terminal drives the container through the sealed shell and places the container on the container delivery device. The clamping terminal returns to the sealed space, and the upper container delivery device starts and delivers the cleaned container to the rear collection area.

[0028] S7: After the clamping terminal returns to the sealed space, the outlet sealing door is closed and the clamping terminal drops to the initial position. At this time, a workflow is completed. When the entrance detects that there is a container to be cleaned at the designated position, the above steps will be repeated for the next batch of cleaning work.

[0029] The beneficial effects of this application are:

[0030] This application sets up a sealed space to clean and collect waste liquid in a closed environment, and the waste gas is also properly treated through the sealed space to ensure environmental safety.

[0031] A sealed door is installed in the sealed space for container entry and exit. A corrosion-resistant, flexible shield window is located behind the sealed space to accommodate the fixed axis of the clamping terminal while maintaining an appropriate range of motion. The clamping terminal does not need to frequently pass through the rear, but only extends and retracts in response to container detection at the front, ensuring that the operation does not pose a risk to the environment.

[0032] The spray components are arranged in multiple groups and are arranged correspondingly to the clamping terminals, which are used for multiple container operations to improve efficiency and are suitable for automated operations at industrial production test sites.

[0033] The drainage pipe for collecting waste liquid at the bottom of the sealed space must have at least one section or point below the bottom plane to ensure that the waste liquid will not flow back into the sealed space or overflow and leak, thereby fully ensuring environmental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is a schematic diagram of the overall structure of an automatic cleaning device for corrosive liquid waste containers according to an embodiment of the present invention.

[0036] Figure 2 for Figure 1 Stereoscopic perspective drawing.

[0037] Figure 3 for Figure 1 A schematic structural diagram of the clamping and flipping mechanism 200;

[0038] Figure 4 for Figure 1 Schematic diagram of the sealed space 400 and the sealed door structure;

[0039] Figure 5 for Figure 4 A frontal half-section perspective view of the

[0040] Figure 6 for Figure 1 A side sectional view of

[0041] Figure 7 for Figure 1 A partial enlarged view of the middle clamping and flipping mechanism 200;

[0042] Figure 8 for Figure 4 A partial enlarged view of the rear;

[0043] Figure 9 for Figure 1 A partial enlarged view of the organ cover assembly;

[0044] Figure 10 The figure is a process flow chart of the method for cleaning a corrosive liquid waste container and collecting waste liquid according to the present invention.

[0045] The numbers in the figure represent: 1. lifting bracket; 2. rotating shaft; 3. rotating cylinder; 4. cylinder fixing stand; 5. telescopic cylinder; 6. exhaust pipe; 7. plastic water pipe; 8. sealing shell; 9. entrance door cylinder; 10. entrance sealing door; 11. universal ball conveyor; 12. upper electric roller; 13. exit sealing door; 14. exit door cylinder; 15. pneumatic gripper; 16. fixed bracket; 17. liquid waste container; 18. semi-tooth clamp; 19. lifting cylinder, 20 accordion shield assembly, 201 workbench, 202 accordion shield, 203 bottom plate; 21. connecting frame; 22. sealing cabin door guide rail; 71. duckbill nozzle; 72. high-pressure nozzle; conveying assembly 100, clamping and flipping mechanism 200, spray assembly 300, sealing space 400, exhaust assembly 500. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0049] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0051] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0053] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0054] Example 1

[0055] See also Figures 1-9 The automatic cleaning device for a corrosive liquid waste container according to the present invention includes five structural parts: a conveying component 100, a clamping and flipping mechanism 200, a spraying component 300, a sealed space 400 and an exhaust component 500.

[0056] The conveyor assembly 100 includes a lower-level container delivery device (universal ball conveyor 11) and an upper-level container delivery device (upper-level motorized roller conveyor 12). To maximize space conservation and reduce the volume of the liquid dumping and cleaning system, the invention utilizes a top-to-bottom layered design to deliver and receive liquid waste containers 17.

[0057] The universal ball conveyor 11, located on the lower level, transports the waste to be cleaned (e.g., barrels of fumigant waste liquid) into the sealed space formed by the sealed housing 8. A clamping and flipping mechanism then grips, moves, and flips the liquid waste container 17. The spray assembly sprays and cleans the waste container 17. Throughout the cleaning process, the exhaust assembly exhausts harmful gases released during the cleaning process into the exhaust duct. Finally, the clamping and flipping mechanism transfers the cleaned barrel to the upper motorized roller conveyor 12 of the conveyor assembly for discharge.

[0058] There is a row of pneumatic doors that move horizontally below the front of the sealed shell 8 as an entrance. The liquid waste container 17 enters the sealed shell 8 from the bottom, and after being dumped and cleaned, it passes through the upper outlet of the sealed shell 8 and is clamped to the upper electric roller. This type of liquid dumping and cleaning system for up and down transportation can save a lot of space compared to traditional cleaning equipment. The working surface of the universal ball conveyor 11 has a slope of 7°, and a universal ball is installed on the slope. There are three rollers on it to transport the containers to be cleaned at the same time. Each roller has guardrails on both sides and at the end, which are used to transport the unwashed liquid waste containers to the front of the entrance of the sealed shell. An entrance counter-shooting sensor is installed at the end of the universal ball conveyor to detect whether the liquid waste container has stopped in place.

[0059] The clamping and flipping mechanism 200 includes a lifting bracket 1, a lifting cylinder 19, a telescopic cylinder 5, a cylinder fixed stand 4, a rotating shaft 2, a rotating cylinder 3, a pneumatic clamp 15, a fixed bracket 16 and a half-moon clamp 18. In terms of structural design, through the design of two groups of cylinders and corresponding racks, the precision devices are arranged outside the sealed shell 8. The liquid waste container 17 can be flipped and cleaned only by the clamp mechanism extending into the sealed shell 8, thereby avoiding direct contact with corrosive waste liquid. The specific design is as follows: the lifting cylinder 19 and the telescopic cylinder 5 are fixed on the cylinder fixed stand 4 and fixed on the same axis. The lifting cylinder 5 and the telescopic cylinder 5 act on the lifting bracket 1 through the sliding mechanism, so that the lifting bracket 1 can move up and down along the direction of the lifting cylinder 5, and can move forward and backward along the telescopic cylinder 5 ( Figure 1 (The front-to-back directions are shown in the figure). The rotating cylinder 3 is fixed to the lifting bracket 1. The two ends of the rotating shaft 2 are respectively connected to the rotating cylinder 3 and the pneumatic clamp 15. The fixed bracket 16 and the half-moon clamp 18 are fixed to the pneumatic clamp 15. The fixed bracket 16 supports the container from the end where the container mouth is located, and the half-moon clamp 18 clamps the container from the circumference, forming a three-dimensional set of clamping and flipping components. A total of three sets of clamping and flipping components are horizontally distributed on the lifting bracket 1.

[0060] As a further improvement to the above technical solution, the clamp used to hold the liquid waste container 17 has also been specifically designed based on its shape, weight, and cleaning process. This is primarily reflected in the crescent-shaped end of the half-moon clamp 18 and the fixed bracket above the mouth of the liquid waste container. These designs prevent the liquid waste container from slipping during the flipping process. Both are made of PP, and a friction-enhancing rubber material is fixed to the crescent surface. The two crescent-shaped ends of the half-moon clamp 18 are connected by a blocking bar and fixed to one of the rotating cylinders. When the rotating cylinder 3 rotates, the rotating cylinder 3 and the blocking bar rotate together with the corrosive liquid waste container 17.

[0061] As a further improvement to the above technical solution, the spray assembly 300 comprises a high-pressure washer (71, duckbill nozzle; 72, high-pressure nozzle), a plastic water pipe 7, and a solenoid valve. The placement of the high-pressure washer in this invention is also specifically designed for this cleaning method. The high-pressure washer, such as the duckbill nozzle 71 or the high-pressure nozzle 72, is located at the end of the plastic water pipe 7, while the solenoid valve is located in front of the high-pressure washer. This embodiment employs three groups of high-pressure washer units, each group comprising three or four duckbill nozzles 71. Each group is equipped with one to ensure multi-angle spraying. The duckbill nozzles 71 in each group are arranged in a circular pattern around the circumference of the container. The diameter of the circle around which the duckbill nozzles 71 are arranged is larger than the opening of the container. They are installed above the inverted container at a predetermined angle, allowing them to spray the outer wall of the liquid waste container 17 when the opening is facing downward, ensuring a clean exterior. Another high-pressure washer, such as a high-pressure nozzle 72, is installed at the center of the barrel to flush the interior of the liquid waste container after it is turned over and tilted, ensuring that no waste liquid remains. Correspondingly, three sets of duckbill nozzles 71 are evenly distributed to correspond to the three sets of clamping and turning components.

[0062] As a further improvement to the above technical solution, the sealed space 400 includes a sealed housing 8, sealed doors (export sealed door 13 and inlet sealed door 10), sealed door cylinders (inlet door cylinder 9 and outlet door cylinder 14), a drainage pipe 7, and an accordion shield assembly 20. Regarding the material selection for the sealed housing 8, a chlorine-resistant PP sheet was specifically selected. Most of the components inside the sealed housing 8 are also made of plastic or PP sheet. The sealed housing 8 is placed between the lifting bracket 1 and the universal ball conveyor 11 below. The accordion shield assembly 20 is located behind the sealed housing 8 ( Figure 8 A partial enlarged view of Figure 9As shown in FIG, the rotating shaft 2 in the clamping and flipping mechanism 200 needs to pass through the accordion shield 202 during the entire cleaning process and move the accordion shield 202 forward and backward. On the one hand, it has a certain sealing performance, and on the other hand, the material is not afraid of corrosion by chlorine-containing waste liquid, while also meeting the movement requirements (forward and backward and up and down displacement) in the cleaning process. In order to ensure the sealing performance of the sealed shell 8, a sealing door is selected to be attached to the sealed shell 8 through a slide groove and a connecting rod. The sealing door cylinder is fixed to the sealed shell. There are two sealing door cylinders, and the sealing doors also have two rows. Three of the sealing doors form a group of translation sliding doors (export sealing door 14 and inlet sealing door 10), which are connected to the corresponding cylinders by a connecting rod. The two groups of sealing doors are arranged in parallel above and below. The automatic sealing doors formed by the two groups of sealing doors and the cylinders are the entrance (entrance sealing door 10) and exit (export sealing door 14) of the sealed shell respectively. When the control system detects that the liquid waste container 17 to be cleaned needs to be cleaned and there is no cleaning action in the sealed shell 8, the lower entrance sealing door 10 will automatically open and close under the drive of the entrance cylinder. Similarly, when the control system detects that the cleaning work in the sealed shell is completed, the pneumatic clamp 15 will lift the liquid waste container 17 to the front of the upper outlet sealing door 14, and then the outlet sealing door 14 will be opened under the drive of the outlet cylinder.

[0063] The drainage pipe 401 is located at the bottom center of the sealed shell 8 and is designed as a U-shaped water trap. On the one hand, it can discharge the cleaned waste water into the wastewater pipe, and on the other hand, it can prevent the corrosive waste liquid volatilized in the wastewater pipe from entering the sealed shell 8.

[0064] The exhaust assembly 500 includes an exhaust duct 6, an exhaust fan, and a check valve (not shown). The exhaust duct 6 is installed in the center above the sealed housing 8, with one end connected to the sealed housing 8 and the other end connected to the factory exhaust gas recovery system pipeline. The check valve is installed at the junction of the exhaust duct and the sealed housing, and the exhaust fan is installed in the exhaust duct behind the check valve. When the equipment is in operation, the exhaust fan and the check valve are in the open state, thereby discharging volatile harmful gases into the exhaust gas recovery and treatment pipeline. After all cleaning work is completed, the exhaust fan and the check valve will continue to operate for 10 minutes to minimize the leakage of volatile gases in the sealed housing and prevent the leakage of corrosive gases in the pipeline.

[0065] After the operator places the liquid waste container 17 onto the universal ball conveyor 11 below, it is automatically transported by gravity to the front of the entrance sealing door 10. An entrance cross-beam sensor is installed at the end of the universal ball conveyor 11. When the cross-beam sensor detects a liquid waste container 17 to be cleaned in front of the entrance sealing door 10 and the cleaning process is not underway in the sealed housing 8, the entrance door cylinder 9 drives the entrance sealing door 10 to open. The telescopic cylinder 5 then pushes the gripping and tilting mechanism to the liquid waste container waiting position. After the telescopic cylinder 5 reaches its full extension stroke, the pneumatic gripper 15 engages in a gripping action, driving the attached semi-toothed clamp 18 to hold the liquid waste container 17. Once the gripping action signal from the pneumatic gripper 15 is activated, the telescopic cylinder 5 then pulls the gripping and tilting mechanism to the cleaning position within the sealed housing 8. Once this action is complete, the entrance door cylinder 9 closes the entrance sealing door 10, ensuring that the cleaning process is carried out in a relatively sealed space.

[0066] The flipping and cleaning process then begins. First, the rotating cylinder 3 drives the rotating shaft 2, pneumatic clamp 15, semi-tooth-shaped clamp 18, and fixed bracket 16 to slowly rotate 180 degrees. The waste liquid in the liquid waste container 17 is then dumped into the wastewater pipe below the sealed shell 8. The water pump then starts supplying water to the plastic water pipe 7, beginning to rinse the outer wall and interior of the liquid waste container 17. After the rinse is completed, the water pump is turned off, and the rotating cylinder 3 drives the rotating shaft 2, pneumatic clamp 15, semi-tooth-shaped clamp 18, and fixed bracket 16 to slowly rotate 180 degrees, so that the barrel mouth of the liquid waste container 17 faces upward. The lifting cylinder 19 then raises the clamping and flipping part to the height of the outlet sealing door 13. The outlet cylinder 14 drives the outlet sealing door 13 to open, and the telescopic cylinder 5 pushes the clamping and flipping part to the upper electric roller conveyor 12. As the pneumatic clamp 15 opens, the telescopic cylinder 5 pulls the clamping and flipping part back into the sealed shell 8. The outlet cylinder 14 drives the outlet sealing door 13 to close, while the lifting cylinder 19 lowers the clamping and flipping portion to the cleaning position of the sealing shell 8. The cleaned liquid waste container 17 is transported to the rear by the upper motorized roller conveyor 12, thus completing the cleaning process of one liquid waste container 17.

[0067] During the entire cleaning process, the operator only needs to place the liquid waste container 17 on the universal ball conveyor 11 below. Compared with the previous manual cleaning, it can greatly avoid contact with corrosive waste liquid and volatilization of corrosive gas during the cleaning process. It ensures the safety of personnel and nearby equipment, while improving cleaning efficiency. In addition, the mechanisms that have the probability of contact with corrosive waste liquid are all corrosion-resistant, such as the semi-tooth-shaped clamp 18, the plastic water pipe 7 and the inner wall of the sealed shell 8, while other non-corrosion-resistant precision equipment are arranged in places where they will not directly contact corrosive waste liquid after process design. This is also the biggest difference between the patent of this invention and the prior art.

[0068] The present invention greatly reduces the probability of contact between operators and precision components of the equipment body and corrosive waste liquid during the cleaning process, can effectively prevent the harm of volatile gases to operators and surrounding equipment, and improves cleaning efficiency and saves labor costs. Through the above steps, the liquid waste container 17 containing corrosive waste liquid can be automatically transferred from the universal ball conveyor 11 to the sealed shell 8 with sealing properties for cleaning. Due to the design of the exhaust duct 6, the outlet sealing door 13, the inlet sealing door 10 and the accordion shield 20, it can be ensured that the cleaning operation in the sealed shell 8 will not affect the outside world. At the same time, the structural design of the clamping and flipping part and the sealed shell 8 and the system process design can ensure that the precision instruments of the equipment are not corroded by the waste liquid, thereby ensuring the life and stability of the equipment.

[0069] Example 2

[0070] Specifically, the method for cleaning a corrosive liquid waste container and collecting waste liquid according to an embodiment of the present invention comprises the following steps:

[0071] S1: The universal ball conveyor 11 transports the liquid waste container 17 to the entrance sealing door 10. After the entrance beam sensor detects a signal, the entrance door cylinder 9 drives the entrance sealing door 10 to open;

[0072] S2: The telescopic cylinder 5 drives the clamping and flipping mechanism to extend toward the liquid waste container 17. The pneumatic gripper drives the semi-toothed clamp 18 to clamp the liquid waste container. The telescopic cylinder 5 drives the clamping and flipping mechanism and the liquid waste container 17 back to the cleaning station in the sealed housing 8. The entrance door cylinder 9 drives the entrance sealing door 10 to close in translation.

[0073] S3: The rotating cylinder 3 drives the rotating shaft 2, the clamping and flipping mechanism, and the liquid waste container 17 to slowly rotate 180 degrees. After the waste liquid is dumped, the plastic water pipes 7 located around and below the liquid waste container 17 begin to flush and continue flushing.

[0074] S4: After the shower is finished, the plastic water pipe 7 is closed, and the rotary cylinder 3 drives the rotary shaft 2, the clamping and flipping mechanism, and the liquid waste container 17 to slowly rotate 180 degrees again and return to the initial position;

[0075] S5: The lifting cylinder 19 drives the clamping and flipping mechanism and the liquid waste container 17 to the position of the outlet sealing door 13, and the outlet door cylinder 14 drives the outlet sealing door 13 to open horizontally;

[0076] S6: The telescopic cylinder 5 drives the clamping and flipping mechanism and the liquid waste container 17 through the space of the sealed shell 8 and extends to the upper electric roller conveyor 12 outside the outlet sealed door 13. The pneumatic gripper 15 drives the semi-tooth-shaped clamp 18 to lower the liquid waste container 17 onto the upper electric roller conveyor 12. The telescopic cylinder 5 drives the clamping and flipping mechanism back into the sealed shell 8. The upper electric roller conveyor 12 starts and transports the liquid waste container to the rear manual collection area (not shown, it can be flexibly arranged according to the size of the production space).

[0077] S7: After the telescopic cylinder 5 drives the clamping and flipping mechanism back to the sealed shell 8, the outlet door cylinder 14 drives the outlet sealing door 13 to close, and the lifting cylinder 19 drives the clamping and flipping mechanism to descend to the initial position. At this time, a work process is completed. When the entrance shooting sensor has a signal again, the above steps will be repeated to carry out the next batch of cleaning work.

[0078] During the entire cleaning process of the present invention, the operator only needs to place the liquid waste container 17 on the universal ball conveyor 11 below to automatically complete all cleaning processes. Compared with previous manual cleaning, it can greatly avoid contact with corrosive waste liquid and volatilization of corrosive gases during the cleaning process.

[0079] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A corrosive liquid waste container cleaning device, characterized in that include: The conveying assembly is composed of a container feeding device at the lower level and a container discharging device at the upper level, which are spatially distributed and combined, and is used to feed and discharge corrosive liquid waste containers; A sealed space is located behind the conveying assembly, between the downstream of the container feeding device and the upstream of the container discharging device, contains a spray assembly, and is provided with an exhaust assembly to communicate with the outside world; The clamping and flipping mechanism is located at the rear of the sealed space and includes a plurality of clamping terminals arranged corresponding to the spraying points of the spray assembly in the sealed space. A corrosion-resistant toughness shield window is provided at the rear of the sealed space to accommodate the passage of the fixed axis of the clamping terminal and retain an appropriate range of motion; each clamping and flipping terminal is configured to extend in the front-to-back direction of the sealed space to clamp the container according to a signal that the container has reached a specified position of the sealing door, and to bring the container back into the sealed space and then flip the container in a sealed environment; each clamping and flipping terminal includes a rotating shaft fixing platform fixed to the free end of the telescopic cylinder, a flippable clamping part fixed to the end of the rotating shaft, and the rotating shaft fixing platform is configured to drive the clamping part to move up and down; the rotating shaft extends into the sealed space as the fixed axis of the clamping terminal and can move forward and backward and up and down; the shape of each clamping part matches the outer wall of the container; The spray assembly is configured to clean the container after the container flipping operation, and waste liquid is collected at the bottom of the sealed space during the cleaning process.

2. A corrosive liquid waste container cleaning device according to claim 1, characterized in that The spray assembly is configured to clean the container at least once after at least one flipping operation.

3. A corrosive liquid waste container cleaning device according to claim 1, characterized in that The spray components are arranged in multiple groups in the sealed container, and each group includes multiple high-pressure spray heads respectively arranged in upper and lower correspondence.

4. A corrosive liquid waste container cleaning device according to claim 1, characterized in that In the same group of spray assemblies, the number of spray heads located above is greater than that located below, and the spray heads above are evenly distributed around the spray heads below, with the spray head distribution range being equal to or slightly larger than the container cup mouth.

5. The corrosive liquid waste container cleaning device according to claim 1, characterized in that Each clamping and flipping terminal extends into the sealed space through a clamping terminal fixing shaft and can move forward and backward, move up and down, and flip in the sealed space.

6. The corrosive liquid waste container cleaning device according to claim 1, characterized in that The sealed space includes a sealed shell, and an inlet sealing door and an outlet sealing door on the surface facing the conveying component; the inlet sealing door is located on the lower layer, corresponding to the downstream of the container feeding device, and the outlet sealing door is located on the upper layer, corresponding to the upstream of the container feeding device.

7. A corrosive liquid waste container cleaning device according to claim 6, characterized in that The inlet sealing door and the outlet sealing door are multi-fold automatic sliding doors driven by a driving device.

8. The corrosive liquid waste container cleaning device according to claim 1, characterized in that The drainage pipe for collecting waste liquid at the bottom of the sealed space must have at least one section or point below the bottom plane to ensure that the waste liquid will not flow back into the sealed space or overflow and leak, thereby fully ensuring environmental safety.

9. A method for cleaning a corrosive liquid waste container and collecting the waste liquid simultaneously, characterized in that The corrosive liquid waste container cleaning device according to any one of claims 6 to 7 comprises the following steps: S1: The liquid waste container is transported to the entrance sealing door through the container feeding device on the lower layer. After reaching the designated position, the entrance sealing door automatically opens; S2: The clamping terminal extends from the sealed space toward the container, clamps the container, and then returns to the cleaning station in the sealed space. The entrance sealing door automatically closes. S3: The clamping terminal holds the container and slowly rotates it 180 degrees. After the waste liquid is dumped, the spray assembly starts to flush from the bottom to the top and in all directions, and the flushing continues; S4: After the shower is finished, the spray assembly is turned off, and the clamping terminal holds the container and slowly rotates 180 degrees again to return to the initial position; S5: The clamping terminal drives the container to the position of the outlet sealing door, and the outlet sealing door opens automatically; S6: The clamping terminal drives the container through the sealed shell and places the container on the container delivery device. The clamping terminal returns to the sealed space, and the upper container delivery device starts and delivers the cleaned container to the rear collection area. S7: After the clamping terminal returns to the sealed space, the outlet sealing door is closed and the clamping terminal drops to the initial position. At this time, a workflow is completed. When the entrance detects that there is a container to be cleaned at the designated position, the above steps will be repeated for the next batch of cleaning work.

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