A circulating cleaning unit

Abstract

The utility model belongs to the technical field of industrial cleaning equipment, disclose a kind of circulating cleaning unit, including cleaning tank, circulating pump and spraying system, further include filter system, filter system is multistage ladder type filtration and reverse self-cleaning integrated structure, and the integrated structure of multistage ladder type filtration and reverse self-cleaning includes at least two levels from top to bottom arranged filter unit and backflush cleaning mechanism;Filter unit includes filter tank, multiple filter screens are installed in filter tank, and the filter screen mesh number of multiple filter screens gradually increases from top to bottom, and the topmost level is coarse filter screen, and the last level is precision filter screen;Backflush cleaning mechanism includes backflush spray pipe, backflush pump, first solenoid valve and blowdown tank.The utility model can significantly improve impurity interception efficiency by the synergistic effect of filter unit and backflush cleaning mechanism, especially non-magnetic particles, while cooperating with automatic backflush mechanism, reduce downtime maintenance frequency, comprehensively solve the problem that traditional filter screen is easy to block and needs frequent cleaning.

Description

Technical Field

[0001] This utility model relates to the field of industrial cleaning equipment technology, and in particular to a circulating cleaning unit. Background Technology

[0002] In industries such as machining, auto parts manufacturing, and hardware products, parts usually need to be cleaned before processing and assembly to remove impurities such as oil and metal shavings. Currently, most widely used pass-through or immersion cleaning machines use single filtration or simple sedimentation to treat the cleaning solution.

[0003] Existing technologies mainly suffer from poor filtration performance. Specifically, traditional filters or magnetic grid separators are prone to rapid clogging, requiring frequent shutdowns for replacement or cleaning, which affects production efficiency. Furthermore, they are not effective at removing non-magnetic fine impurities (such as aluminum shavings and plastic particles). Therefore, we propose a circulating cleaning unit. Utility Model Content

[0004] In view of the problem of poor filtration effect in the existing cleaning units, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A circulating cleaning unit includes a cleaning tank, a circulating pump connected to the cleaning tank via a pipe, and a spray system. It also includes a filtration system, wherein the filtration system is a multi-stage stepped filtration and reverse self-cleaning integrated structure. The multi-stage stepped filtration and reverse self-cleaning integrated structure includes at least two stages of filter units arranged from top to bottom and a backwash cleaning mechanism disposed below each stage of the filter unit.

[0007] The filtration unit includes a filter tank connected to the circulation pump via a pipe. The filter tank is equipped with a multi-stage filter screen. The mesh size of the multi-stage filter screen increases progressively from top to bottom, with the uppermost stage being a coarse filter screen and the lowermost stage being a fine filter screen.

[0008] The backwash cleaning mechanism includes a backwash nozzle connected to the bottom of the filter tank, a backwash pump connected to the backwash nozzle, a first solenoid valve located between the backwash pump and the backwash nozzle, and a drain trough connected by a pipeline.

[0009] As a technical solution of the circulating cleaning unit of this utility model, the coarse filter screen is a perforated plate, and the fine filter screen is a stainless steel woven mesh or sintered mesh.

[0010] As a technical solution of the circulating cleaning unit of this utility model, the bottom of the lowest layer filter tank is equipped with a connected sludge collection tank, and the outlet of the sludge collection tank is connected to the sewage discharge tank through a pipe.

[0011] As a technical solution of the circulating cleaning unit of this utility model, a circulation pipe is installed between the cleaning tank and the sewage tank, and a second solenoid valve is installed on the circulation pipe.

[0012] As a technical solution of the circulating cleaning unit of this utility model, it further includes a PLC controller installed on the cleaning tank. The PLC controller is electrically connected to the circulating pump, the backwash pump and each solenoid valve through wires. The PLC controller triggers the self-cleaning program according to a preset time period.

[0013] As a technical solution of the circulating cleaning unit described in this utility model, the PLC controller is equipped with a touch screen for setting parameters of each device.

[0014] As a technical solution of the circulating cleaning unit of this utility model, the cleaning tank is provided with an independent magnetic separator for pre-adsorbing and removing ferromagnetic impurities in the cleaning liquid.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This utility model can significantly improve the efficiency of impurity interception, especially non-magnetic particles, through the synergistic effect of the filtration unit and the backwash cleaning mechanism. At the same time, with the help of the automated backwash mechanism, the frequency of downtime maintenance is reduced, and the problem of easy clogging and frequent cleaning of traditional filters is comprehensively solved.

[0017] 2. This utility model, through the synergistic effect of a magnetic separator and a multi-stage filter, covers all categories of magnetic / non-magnetic impurities. Combined with the cooperation of a circulation pipeline and a sludge collection tank, it achieves centralized discharge of impurities and partial reuse of liquid, while taking into account both cleaning effect and resource conservation. Attached Figure Description

[0018] 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. Among them:

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 2This is a side view of the structure of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Cleaning tank; 2. Circulation pump; 301. Filter tank; 302. Coarse filter screen; 303. Fine filter screen; 401. Backwash nozzle; 402. Backwash pump; 403. First solenoid valve; 5. Sludge collection tank; 6. Sludge discharge tank; 7. Circulation pipeline; 8. Second solenoid valve; 9. PLC controller; 901. Touch screen. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figures 1-3 A circulating cleaning unit is provided, which includes a cleaning tank 1, a circulating pump 2 connected to the cleaning tank 1 through a pipe, and a spray system. It also includes a filtration system, which is a multi-stage stepped filtration and reverse self-cleaning integrated structure. The multi-stage stepped filtration and reverse self-cleaning integrated structure includes at least two stages of filter units arranged from top to bottom and a backwash cleaning mechanism set below each filter unit.

[0026] The filtration unit includes a filter tank 301 connected to the circulation pump 2 via a pipe. The filter tank 301 is equipped with multi-stage filter screens. The mesh size of the multi-stage filter screens increases progressively from top to bottom, with the uppermost stage being a coarse filter screen 302 and the lowermost stage being a fine filter screen 303. In application, through multi-stage stepped filtration (from coarse filter screen 302 to fine filter screen 303), impurities are intercepted step by step, improving filtration accuracy and avoiding the problem of rapid clogging of a single filter screen due to the accumulation of impurities.

[0027] The backwash cleaning mechanism includes a backwash nozzle 401 connected to the bottom of the filter tank 301, a backwash pump 402 connected to the backwash nozzle 401, a first solenoid valve 403 located between the backwash pump 402 and the backwash nozzle 401, and a drain trough 6 connected by a pipe. In application, the backwash cleaning mechanism backwashes the filter screen, eliminating the need for manual disassembly and cleaning, reducing downtime, and improving production efficiency.

[0028] Reference Figure 3The coarse filter 302 is a perforated plate (20-40 mesh), and the fine filter 303 is a stainless steel woven mesh or sintered mesh (100-200 mesh). In application, the perforated plate as the coarse filter 302 can effectively intercept large particulate impurities (such as metal shavings), while the stainless steel woven mesh / sintered mesh as the fine filter 303 can capture small non-magnetic impurities (such as plastic particles), thus meeting the removal needs of different types of impurities.

[0029] Reference Figures 1-3 The bottom of the lowest filter tank 301 is equipped with a connected sludge collection tank 5. The outlet of the sludge collection tank 5 is connected to the sewage discharge tank 6 through a pipe. In application, the sludge collection tank 5 collects the impurities generated by backwashing, preventing the impurities from flowing back to the cleaning tank 1 and reducing the risk of secondary pollution.

[0030] Reference Figures 1-3 A circulation pipe 7 is installed between the cleaning tank 1 and the sewage tank 6. A second solenoid valve 8 is installed on the circulation pipe 7. In application, the circulation pipe 7 and the second solenoid valve 8 realize closed-loop control of the cleaning liquid and the sewage tank 6, which can recover part of the filtered liquid and reduce resource waste.

[0031] Reference Figures 1-3 It also includes a PLC controller 9 installed on the cleaning tank 1. The PLC controller 9 is electrically connected to the circulation pump 2, the backwash pump 402 and each solenoid valve via wires. The PLC controller 9 triggers the self-cleaning program according to a preset time cycle. In application, the PLC controller 9 triggers the self-cleaning program at regular intervals to ensure the continuous and efficient operation of the filtration system.

[0032] Reference Figures 1-3 The PLC controller 9 integrates a touch screen 901 for setting parameters of various devices. The touch screen 901 integrates a parameter setting interface, supports manual / automatic mode switching, filter time adjustment, and alarm prompts. In application, the touch screen 901 simplifies the parameter setting process and improves the ease of operation.

[0033] Reference Figure 1 and Figure 2 The cleaning tank 1 is equipped with an independent magnetic separator for pre-adsorbing and removing ferromagnetic impurities from the cleaning solution. The magnetic separator is installed at the inlet of the cleaning tank 1. The magnetic separator is existing technology and will not be described in detail here, nor is it shown in the figure. In application, the magnetic separator preferentially adsorbs ferromagnetic impurities, complementing the multi-stage filtration system and solving the problem that traditional magnetic grids cannot handle non-magnetic impurities.

[0034] The working principle of this utility model is as follows: Start-up preparation stage: check the liquid level of cleaning tank 1, inject cleaning liquid to the standard line, and then start PLC controller 9 through touch screen 901. The system self-checks the status of each pump (circulation pump 2, backwash pump 402) and valve (first solenoid valve 403, second solenoid valve 8).

[0035] During the cleaning mode operation: the circulation pump 2 starts and delivers the cleaning fluid to the multi-stage filter tank 301. At this time, the coarse filter screen 302 intercepts large particles of impurities (such as metal fragments), the fine filter screen 303 captures small non-magnetic particles (such as plastic microparticles), and the magnetic separator simultaneously adsorbs iron filings, reducing the subsequent filtration load.

[0036] Self-cleaning trigger phase: PLC controller 9 starts the backwash program according to a preset cycle (e.g., 2 hours), and shuts off circulation pump 2, while opening backwash pump 402 and the first solenoid valve 403. At this time, reverse water flow is sprayed from the bottom of filter tank 301, flushing off impurities from the multi-stage filter screen to the drain tank 6. Then, the sediment is collected in the collection tank 5 and manually discharged periodically.

[0037] Sewage discharge and circulation stage: After self-cleaning is completed, the second solenoid valve 8 is opened, and part of the filtrate flows back to the cleaning tank 1 through the circulation pipe 7. Then the residual sewage in the sewage discharge tank 6 is centrally treated to avoid pollution.

[0038] Maintenance phase: Regularly check the integrity of the filters (e.g., once a month for coarse filter 302, once a week for fine filter 303), and clean the iron filings adsorbed by the magnetic separator and the sediment in the collection tank 5.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A circulating cleaning unit, comprising a cleaning tank (1), a circulating pump (2) connected to the cleaning tank (1) via a pipe, and a spraying system, characterized in that: It also includes a filtration system, which is a multi-stage stepped filtration and reverse self-cleaning integrated structure. The multi-stage stepped filtration and reverse self-cleaning integrated structure includes at least two stages of filtration units arranged from top to bottom and a backwash cleaning mechanism disposed below each stage of the filtration unit. The filtration unit includes a filter tank (301) connected to the circulation pump (2) via a pipe. The filter tank (301) is equipped with a multi-stage filter screen. The mesh size of the multi-stage filter screen increases from top to bottom, with the uppermost stage being a coarse filter screen (302) and the lowermost stage being a fine filter screen (303). The backwash cleaning mechanism includes a backwash nozzle (401) connected to the bottom of the filter tank (301), a backwash pump (402) connected to the backwash nozzle (401), a first solenoid valve (403) located between the backwash pump (402) and the backwash nozzle (401), and a drain trough (6) connected by a pipe.

2. The circulating cleaning unit according to claim 1, characterized in that: The coarse filter screen (302) is a perforated plate, and the fine filter screen (303) is a stainless steel woven mesh or sintered mesh.

3. The circulating cleaning unit according to claim 1, characterized in that: The bottom of the lowest filter tank (301) is equipped with a connected sludge collection tank (5), and the outlet of the sludge collection tank (5) is connected to the sewage discharge tank (6) through a pipe.

4. The circulating cleaning unit according to claim 3, characterized in that: A circulation pipe (7) is installed between the cleaning tank (1) and the sewage tank (6), and a second solenoid valve (8) is installed on the circulation pipe (7).

5. The circulating cleaning unit according to any one of claims 1-4, characterized in that: It also includes a PLC controller (9) installed on the cleaning tank (1). The PLC controller (9) is electrically connected to the circulating pump (2), the backwash pump (402) and each solenoid valve via wires. The PLC controller (9) triggers the self-cleaning program according to a preset time period.

6. The circulating cleaning unit according to claim 5, characterized in that: The PLC controller (9) is equipped with a touch screen (901) for setting parameters of each device.

7. The circulating cleaning unit according to claim 1, characterized in that: The cleaning tank (1) is equipped with an independent magnetic separator for pre-adsorbing and removing ferromagnetic impurities from the cleaning solution.

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