Rotary trash-cleaning machine, trash-cleaning system and trash-cleaning test system

Abstract

The utility model relates to the technical field of hydraulic engineering, in particular to a rotary trash remover, a trash removal system and a trash removal test system.The rotary trash remover comprises a rack, a grating, a chain, a plurality of rake teeth and a cleaning system, and the grating is arranged on one side of the rack; the chains are arranged at the two ends of the machine frame, the chains at the two ends do synchronous rotary motion, the rake teeth are installed between the chains at the two ends and do rotary motion along with the chains, the rake teeth comprise hook-shaped rake teeth and spoon-shaped rake teeth, and hook parts used for cleaning hard dirt are arranged at the heads of the hook-shaped rake teeth. The head parts of the spoon-shaped rake teeth are provided with spoon parts for cleaning soft and sticky dirt; and the cleaning system is used for cleaning dirt on the rake teeth. The utility model provides an innovative combined type tooth rake design, the spoon-shaped rake teeth and the hook-shaped rake teeth are ingeniously combined, and the combined type tooth rake not only can effectively clean strip-shaped blockages (such as aquatic plants), but also can deal with round blockages (such as jellyfishes), and provides a more comprehensive cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a rotary cleaning machine, a cleaning system and a cleaning test system. Background Technology

[0002] Rotary trash rack cleaners are important permanent equipment in water conservancy and hydropower projects. They use rotating rakes to scoop up and remove debris adhering to the surface of trash racks, and are mostly used for cleaning pump stations, turbine generator inlets, or channels. However, existing rotary trash rack cleaners have relatively simple rake designs, which cannot effectively clean different types of debris, resulting in poor cleaning efficiency. Utility Model Content

[0003] To address the problem of poor cleaning performance of existing rotary cleaning machines, this invention provides a rotary cleaning machine, cleaning system, and cleaning testing system with good cleaning performance.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A rotary screen cleaner, comprising:

[0006] frame,

[0007] A grille, wherein the grille is disposed on one side of the frame;

[0008] The chains are located at both ends of the frame, and the chains at both ends rotate synchronously.

[0009] A number of rake teeth are mounted between chains at both ends and rotate with the chains. The rake teeth include hook-shaped rake teeth and spoon-shaped rake teeth. The head of the hook-shaped rake teeth is provided with a hook for cleaning hard dirt, and the head of the spoon-shaped rake teeth is provided with a spoon for cleaning soft and sticky dirt.

[0010] A cleaning system, wherein the cleaning system is used to clean dirt from the rake teeth.

[0011] Furthermore, the hook-shaped rake teeth and spoon-shaped rake teeth are alternately installed on the chain.

[0012] Furthermore, the cleaning system includes a cleaning brush and a rinsing device, wherein the cleaning brush is rotatably mounted on the side of the frame away from the grid; the rinsing water pipe is equipped with nozzles, and the water jets from the nozzles are used to rinse the rake teeth and the cleaning brush.

[0013] Furthermore, both ends of the frame are equipped with guide rails for supporting and guiding the chains.

[0014] Furthermore, each end of the guide rail includes a first guide rail located at the front and a second guide rail located at the rear. The rails employ a double-rail structure to prevent the chain from derailing.

[0015] Furthermore, the chain includes a pin, on which a roller is fitted. Chain plates are mounted on both sides of the roller for connecting with adjacent rollers to form a chain. The chain plates are fitted onto the pin. One side of the roller has a raised chain flange. The first and second guide rails are each formed by two opposing rail bodies. The inner side of one rail body contacts the body of the roller, and the chain flange of the roller contacts the inner side of the other rail body. The chain flanges of adjacent rollers are alternately arranged left and right. This chain structure with a single-sided chain flange crossing left and right effectively avoids chain derailment and jamming caused by blockages, ensuring smooth chain rolling on the track.

[0016] Furthermore, the outer ends of the first and second guide rails are equipped with sealing brushes to prevent blockages from entering the rails and reduce the risk of chain jamming.

[0017] Furthermore, a motor is provided above the frame, a drive sprocket is provided at the upper end of the frame, and a driven sprocket is provided at the lower end of the frame. The drive sprocket is connected to the motor for transmission. The frame is also provided with a tensioning device for adjusting the position of the drive sprocket.

[0018] A cleaning system, the aforementioned rotary cleaning machine, further includes a control device and a detection mechanism for detecting the water level difference between a first chamber and a second chamber, the detection mechanism being connected to the control device.

[0019] A cleaning and decontamination testing system includes the aforementioned cleaning system and a cleaning tank. The width of the cleaning tank is adapted to a cleaning machine. The cleaning machine has a recovery container on its rear lower side for recovering the dirt cleaned by the rake teeth. The cleaning machine divides the cleaning tank into a first chamber and a second chamber. The cleaning tank is equipped with a circulation device for realizing water circulation between the first chamber and the second chamber.

[0020] Beneficial effects:

[0021] I. High-efficiency cleaning structure design: (1) An innovative combined toothed rake design is proposed. This design cleverly combines spoon-shaped rake teeth and hook-shaped rake teeth. It can not only effectively clean up those strip-shaped blockages (such as aquatic plants), but also deal with round blockages (such as jellyfish), providing a more comprehensive cleaning effect. (2) An innovative roller brush is designed to intercept and clean various marine animals and marine plants, including situations where gelatinous and fibrous debris is entangled in the rake teeth. This improves the working efficiency of the cleaning machine and prevents dirt from being carried into the downstream channel by the toothed rake, thus improving the reliability of interception. (3) A water rinsing device is designed above the roller brush. This can not only effectively clean the toothed rake, but also thoroughly clean the brush, ensuring the cleanliness and service life of the brush, and further improving the cleaning efficiency of the cleaning machine.

[0022] II. High-Reliability Protection Design: (1) A chain structure with left and right crosses on one side is proposed, which effectively avoids chain derailment and jamming caused by blockage, ensuring smooth chain rolling on the track. (2) A sealing brush is designed on the outside of the track to prevent blockage from entering the track and reduce the risk of chain jamming.

[0023] III. Intelligent Control System: This system can monitor the working status of the cleaning machine in real time and automatically adjust the working frequency according to the accumulation of blockages, which not only ensures the cleaning effect but also avoids unnecessary energy consumption, thus achieving the goal of energy conservation and environmental protection. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the front side of the rotary cleaning machine of this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the rear side of the rotary cleaning machine of this utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the rear part of the frame;

[0028] Figure 4 This is a schematic diagram of the structure of hook-shaped rake teeth;

[0029] Figure 5 A schematic diagram of the structure of spoon-shaped rake teeth;

[0030] Figure 6This is a schematic diagram of the cleaning system.

[0031] Figure 7 This is a schematic diagram of the frame structure;

[0032] Figure 8 This is a schematic diagram showing the longitudinal cross-sectional positional relationship of the chain, hook-shaped rake teeth, and spoon-shaped rake teeth;

[0033] Figure 9 A schematic diagram showing the frontal positional relationship of the chain, hook-shaped rake teeth, and spoon-shaped rake teeth;

[0034] Figure 10 This is a schematic diagram of the chain structure;

[0035] Figure 11 for Figure 10 Sectional view along the middle AA.

[0036] 1. Frame; 11. First guide rail; 12. Second guide rail; 13. Rail body; 131. Convex rail; 2. Grating; 3. Chain; 31. Pin; 32. Roller; 321. Chain edge; 33. Chain plate; 4. Hook-shaped rake teeth; 41. Hook; 5. Spoon-shaped rake teeth; 51. Spoon; 6. Cleaning brush; 7. Flushing device; 8. Motor; 9. Drive sprocket; 10. Driven sprocket. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be aligned for further discussion in subsequent figures.

[0040] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0043] like Figures 1-11 This utility model discloses a rotary cleaning machine, comprising a frame 1, a grid 2, a chain 3, several rake teeth, and a cleaning system. The grid 2 is located on one side of the frame 1; the chain 3 is located at both ends of the frame 1, and the chains 3 at both ends rotate synchronously. The rake teeth are installed between the chains 3 at both ends and rotate with the chains 3. The rake teeth are welded to thickened chain plates 33 and rotate with the chains 3 to achieve the cleaning function. The rake teeth include hook-shaped rake teeth 4 and spoon-shaped rake teeth 5. The head of the hook-shaped rake teeth 4 is provided with a hook part 41 for cleaning hard dirt, and the head of the spoon-shaped rake teeth 5 is provided with a spoon part 51 for cleaning soft and sticky dirt. The cleaning system is used to clean the dirt on the rake teeth. Hook-shaped rake teeth 4 and spoon-shaped rake teeth 5 are alternately installed on the chain at a spacing of 1.5 meters, circulating with the chain. All rake teeth are made of 316L stainless steel. Hook-shaped rake teeth 4 are 10mm wide each, evenly spaced 35mm apart on the connecting pipe, and are mainly used for cleaning flocculent hard debris (such as seaweed, branches, and household waste). Spoon-shaped rake teeth 5 are 10mm wide and 3mm thick each, evenly spaced 35mm apart on the connecting pipe, and are mainly used for cleaning soft, sticky debris (such as jellyfish and sea cucumbers).

[0044] Hook-shaped rake teeth 4 and spoon-shaped rake teeth 5 are alternately installed on chain 3.

[0045] The cleaning system includes a cleaning brush 6 and a rinsing device 7. The cleaning brush 6 is rotatably mounted on the side of the frame 1 away from the grid 2. The rinsing water pipe is equipped with nozzles, and the water jets from the nozzles are used to rinse the rake teeth and the cleaning brush 6.

[0046] like Figure 7 Both ends of the frame 1 are equipped with guide rails for supporting and guiding the chain 3.

[0047] Each end of the guide rail includes a first guide rail 11 located on the front side and a second guide rail 12 located on the rear side. The rail adopts a double-rail structure to prevent the chain 3 from derailing.

[0048] like Figure 11 The chain 3 includes a pin 31, a roller 32 is fitted on the pin 31, and chain plates 33 are installed on both sides of the roller 32 for connecting with the adjacent roller 32 to form the chain 3. The chain plates 33 are fitted on the pin 31, and a cotter pin for limiting is provided on one side of the pin 31. A washer is provided between the cotter pin and the washer.

[0049] The roller 32 has a raised chain flange 321 on one side. The first guide rail 11 and the second guide rail 12 are both formed by two oppositely arranged rail bodies 13. The inner side of one rail body 13 is in contact with the body of the roller 32. The chain flange 321 of the roller 32 is in contact with the inner side of the other rail body. The chain flanges 321 of adjacent rollers 32 are alternately arranged on the left and right.

[0050] Sealing brushes are provided at the outer ends of the first guide rail 11 and the second guide rail 12.

[0051] A motor 8 is mounted on top of the frame 1, and the motor 8 is connected to a reducer. A drive sprocket 9 is located at the upper end of the frame 1, and two drive sprockets 9 are connected via a drive shaft. A driven sprocket 10 is located at the lower end of the frame 1. The drive sprockets 9 are connected to the reducer. The frame 1 also has a tensioning device for adjusting the position of the drive sprockets 9. A tensioning wheel device is installed on the top of the equipment to facilitate adjustment of the chain tension and prevent the chain from loosening or falling off.

[0052] This utility model's rotary cleaning machine adopts a modular structure design, supports quick assembly and disassembly, reduces maintenance time by more than 40%, and is also equipped with intelligent fault diagnosis function.

[0053] Working principle of rotary screen cleaner;

[0054] Driven by a motor and reducer, the rotary chain rotates upwards around the grid on the water-facing side. When the rake teeth on the traction chain reach the water-facing side of the grid, the rake teeth and the gaps in the grid perform a cleaning action, scraping the debris trapped on the grid into the rake. When the rake teeth reach the top of the machine, the debris falls off by its own weight and is washed by the cleaning brush 6 and water jets to clean the debris on the rake teeth, thus achieving the cleaning effect. The cleaning brush 6 is a polyethylene roller brush that runs along the width of the frame 1 and is added to the rear side of the drive shaft of the cleaning machine. Each time the rake teeth rotate, the roller brush cleans the rake teeth once, keeping the surface of the rake teeth and buckets clean and allowing them to smoothly insert and pass through the gaps in the grid 2. The water flushing device not only effectively cleans the rake teeth but also thoroughly cleans the brushes, ensuring the cleanliness and service life of the brushes and further improving the cleaning efficiency of the cleaning machine.

[0055] This utility model also provides a cleaning system, including the aforementioned rotary cleaning machine, a control device, and a detection mechanism for detecting the water level difference between the first and second chambers. The detection mechanism is connected to the control device. It collects liquid level signals before and after the coarse and fine screens to determine the interception amount. The control device can control the motor 8, intelligently controlling the start, stop, and operating speed of the cleaning machine, making it safer, more efficient, and energy-saving than conventional rotary cleaning machines.

[0056] The rotary cleaning machine is controlled by a local PLC. The local PLC can realize manual and automatic control modes. In automatic control mode, the local PLC can automatically clean the dirt based on the liquid level difference signal or the timing signal.

[0057] The control strategy is as follows:

[0058] 1) When the water level difference before and after the screen reaches 100mm, the control system should automatically start the cleaning machine;

[0059] 2) When the water level difference (differential pressure) drops below 50mm, the cleaning machine resets;

[0060] 3) If the water level difference (differential pressure) does not reach 50mm after the cleaning machine has been running for 30 minutes, or if the cleaning machine does not return to its original position, an alarm signal will be issued in the main control room to notify the on-duty personnel to check the cause and deal with it in a timely manner.

[0061] 4) If the water level difference (differential pressure) does not reach 100mm within 24 hours, the cleaning machine should be controlled by the timer circuit and run once according to the above procedure.

[0062] The intelligent system also has a fault warning function. Once an abnormal situation is detected, it can immediately issue an alarm, which will facilitate timely handling by maintenance personnel.

[0063] This utility model also provides a cleaning and decontamination testing system, including the aforementioned cleaning system, and further including a cleaning tank. The width of the cleaning tank is adapted to the cleaning machine. The cleaning machine has a recovery container on its rear lower side for recovering the dirt cleaned by the rake teeth. The cleaning machine divides the cleaning tank into a first chamber and a second chamber. The cleaning tank is equipped with a circulation device for realizing water circulation between the first chamber and the second chamber. The circulation device is optional, but not limited to, a water pump.

[0064] The cleaning machine and circulating water system were started. After the water flow stabilized, 28.6 kg of aquatic plants and other debris were added to the front end of the cleaning machine within 30 seconds. After 22 seconds of operation, most of the debris in the pool was collected in the collection frame. Actual measurement showed that 27.8 kg of debris was collected, achieving a cleaning efficiency of 97.2%. Furthermore, based on the test results showing that 27.8 kg of debris was removed in 22 seconds, it is estimated that the equipment can remove approximately 75.8 kg of debris in one minute.

[0065] The rotary cleaning machine of this invention has the advantages of high cleaning efficiency, high reliability and wide applicability. When applied to the water intake system of nuclear power plants, it helps to improve the interception and cleaning capabilities, reduce the workload of operation and maintenance, and help reduce the risk of unplanned shutdowns of power plants.

[0066] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rotary cleaner characterised in that: The utility model relates to a rotary type cleaning machine, which comprises a frame (1), a grid (2) arranged on one side of the frame (1), chains (3) arranged at both ends of the frame (1), the chains (3) at both ends rotating synchronously, a plurality of tines installed between the chains (3) at both ends and rotating with the chains (3), the tines comprising hook-shaped tines (4) and spoon-shaped tines (5), the head of the hook-shaped tine (4) being provided with a hook (41) for cleaning hard dirt, the head of the spoon-shaped tine (5) being provided with a spoon (51) for cleaning soft and sticky dirt, and a cleaning system for cleaning the dirt on the tines. The hook-shaped tines (4) and the spoon-shaped tines (5) are alternately installed on the chains (3). The cleaning system comprises a cleaning brush (6) and a flushing device (7), the cleaning brush (6) being rotatably arranged on the side of the frame (1) away from the grid (2), and the flushing water pipe being provided with a nozzle, the water flow sprayed by the nozzle being used for flushing the tines and the cleaning brush (6). The frame (1) is provided with guide rails at both ends for supporting and guiding the chains (3). Each end of the guide rail comprises a first guide rail (11) on the front side and a second guide rail (12) on the back side. The chain (3) comprises a pin shaft (31), the pin shaft (31) being sleeved with a roller (32), the two sides of the roller (32) being provided with chain plates (33) for connecting adjacent rollers (32) to form the chain (3), the chain plate (33) being sleeved on the pin shaft (31), one side of the roller (32) being provided with a protruding chain edge (321), the first guide rail (11) and the second guide rail (12) each being formed by two oppositely arranged rail bodies (13), the inner side of one rail body (13) being provided with a convex rail (131) in contact with the body of the roller (32), the chain edge (321) of the roller (32) being in contact with the inner side of the other rail body, and the chain edges (321) of adjacent rollers (32) being alternately arranged left and right.

2. A rotary cleaner according to claim 1 wherein: The outer end of the first guide rail (11) and the second guide rail (12) is provided with a sealing brush.

3. A rotary cleaner according to claim 1 wherein: The frame (1) is provided with a motor (8) above, the upper end of the frame (1) is provided with a driving sprocket (9), the lower end of the frame (1) is provided with a driven sprocket (10), the driving sprocket (9) is in transmission connection with the motor (8), and the frame (1) is further provided with a tensioning device for adjusting the position of the driving sprocket (9).

4. A rotary cleaner according to claim 1 wherein: The cleaning system comprises the rotary type cleaning machine according to any one of claims 1-8, a control device, and a detection mechanism for detecting the water level difference between the first cavity and the second cavity, the detection mechanism being connected with the control device.

5. A rotary cleaner as claimed in claim 4 wherein: The cleaning system comprises the cleaning system according to claim 9, a cleaning pool, the width of the cleaning pool being matched with the cleaning machine, a recovery container arranged below the back side of the cleaning machine for recovering the dirt cleaned by the tines, the cleaning machine dividing the cleaning pool into the first cavity and the second cavity, and a circulating device arranged in the cleaning pool for realizing water circulation in the first cavity and the second cavity.

6. A rotary cleaner as claimed in claim 5 wherein: ​ 7. A rotary cleaner according to claim 6 wherein: ​ 8. A rotary cleaner according to claim 1 wherein: ​ 9. A decontamination system characterized by: ​ 10. A decontamination test system characterized by: ​

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