Chromium polishing cooling water recycling device based on printing plate roller polishing

Abstract

The utility model discloses a chromium polishing cooling water recycling device based on printing plate roller polishing, which relates to the field of chromium polishing cooling water treatment, and adopts the technical scheme that the chromium polishing cooling water recycling device comprises a cooling water collecting tank, a precipitation filtering tank, an ion exchange tank, a reverse osmosis tank and a disinfection tank which are arranged on a base and are connected in sequence, the device has the effects that the cooling water can be deeply treated to reach the use standard, the treated cooling water finally enters a recycling unit to be recycled by printing plate roller polishing equipment, and in the operation process, the electric valve A accurately controls the flow of the cooling water by adjusting the rotating speed of a water pump and the opening degree of the valve; and in addition, the cooling water collecting tank is matched with the transition of the automatic water control assembly, so that enough water is kept for treatment for a long time, efficiency reduction or equipment failure caused by unstable water flow in each treatment link is avoided, and efficient cyclic utilization and stable treatment of the chromium polishing cooling water are realized.

Description

Technical Field

[0001] This utility model relates to the field of chromium polishing cooling water treatment, and more specifically, it relates to a chromium polishing cooling water recycling device based on printing plate roller polishing. Background Technology

[0002] During the polishing process of printing rollers, the chrome polishing process requires a large amount of cooling water to ensure stable equipment operation and product quality. The principle behind this process is that the chrome polishing process involves high-speed grinding of the chrome-plated surface of the printing roller using polishing wheels or belts. During this process, the intense friction between the polishing wheel and the roller surface generates a significant amount of heat. If this heat cannot be dissipated in time, it can cause equipment components (such as the polishing machine spindle and bearings) to expand and deform due to excessive temperature, leading to decreased mechanical precision, affecting the normal operation of the polishing equipment, and potentially causing equipment failure. Furthermore, excessively high temperatures can alter the physicochemical properties of the chrome layer on the roller surface, such as reducing the hardness of the chrome layer and increasing surface roughness, thereby affecting the image transfer quality of the printing roller and causing problems such as color difference and dot distortion in the printed product. Therefore, to maintain the stable mechanical performance of the polishing equipment and ensure that the chrome layer on the roller retains good physicochemical properties during polishing, it is essential to continuously cool the polishing area with a large amount of cooling water to remove the heat generated by friction, keeping the equipment and roller within a suitable operating temperature range, thus ensuring stable equipment operation and product quality.

[0003] During the polishing process of printing plate rollers, the chrome polishing process requires a large amount of cooling water to ensure stable equipment operation and product quality. However, most printing companies currently treat the chrome polishing cooling water in a simple and crude way, generally adopting the method of direct discharge. This not only causes serious waste of water resources and significantly increases the production costs of enterprises, but also exacerbates the environmental burden. Although some cooling water recovery devices exist in the existing technology, they lack effective control over the water flow. The water flow fluctuates greatly (the operating status of the printing plate roller polishing equipment fluctuates, such as the adjustment of polishing speed, equipment start-up and shutdown, which will cause instantaneous changes in the cooling water flow rate, ultimately resulting in changes in the flow rate of cooling water entering the treatment device). This can easily cause problems such as insufficient sedimentation, filter blockage, and excessive load on the reverse osmosis membrane, leading to disordered processing, frequent equipment failures, and difficulty in ensuring operational stability.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a chromium polishing cooling water recycling device based on printing plate roller polishing. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a chromium polishing cooling water recycling device based on printing plate roller polishing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chromium polishing cooling water recycling device based on printing plate roller polishing, comprising a cooling water collection tank, a sedimentation filter tank, an ion exchange tank, a reverse osmosis tank, and a disinfection tank arranged sequentially on a base. Each tank is connected to the other via a connecting pipe, and an electric valve A equipped with a water pump is installed on the connecting pipe. An inlet pipe is installed at the top of the cooling water collection tank, and an electric valve B is installed on the inlet pipe.

[0007] The cooling water collection tank is equipped with an automatic water control component to automatically close the electric valve B when the water level inside the cooling water collection tank is appropriate.

[0008] Preferably, the automatic water control assembly includes a slide rod fixed to the bottom wall of the cooling water collection tank, and a sliding sleeve slidably connected to the outer wall of the slide rod. A float is fixedly connected to the side end of the sliding sleeve, and a pressing block is fixedly connected to the top end of the sliding sleeve. A spring switch for controlling the switch of electric valve B is installed on the top wall of the cooling water collection tank.

[0009] Preferably, the top of the base is also equipped with a lifting assembly that drives the top cover of the sedimentation filter tank to move up and down. The bottom two sides of the top cover are connected to the inner cylinder through vertical rods, and a filter screen is detachably connected to the bottom of the inner cylinder.

[0010] Preferably, the lifting assembly includes a connecting shell fixed to the top of the base and opening towards the sedimentation filter tank. A lead screw driven by a motor is installed inside the connecting shell. Rod sleeves are threaded onto the outer side wall of the lead screw. The surface of the rod sleeves is connected to the top cover through a connecting frame.

[0011] Preferably, guide rails are fixedly connected to both sides of the interior of the connecting shell, and the two sides of the rod sleeve are slidably connected to the guide rails by sliders.

[0012] Preferably, a connecting rod is fixedly connected to the inner wall of the inner cylinder, and a bearing is fixedly connected to the head of the connecting rod. A rotating rod is fixedly connected to the inner ring of the bearing, and an anti-clogging blade located directly above the filter screen is fixedly connected to the bottom end of the rotating rod.

[0013] Preferably, the head of the rotating rod is fixedly connected to a transmission blade, which can rotate with the water flow when the inner cylinder is lifted upward.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention can perform deep treatment of cooling water to meet usage standards. The treated cooling water eventually enters the recycling unit for use in printing plate roller polishing equipment. During operation, electric valve A precisely controls the cooling water flow by adjusting the water pump speed and valve opening. In addition, the cooling water collection tank, in conjunction with the automatic water control component, ensures a sufficient amount of water for treatment over a long period of time, avoiding efficiency reduction or equipment failure in each treatment stage due to unstable water flow. This achieves efficient recycling and stable treatment of chromium polishing cooling water, thus solving the problems in the background technology.

[0016] This invention utilizes a lifting assembly to elevate the inner cylinder as a whole, allowing the settled cooling water to flow through the filter screen into the remaining space of the tank, achieving solid-liquid separation and effectively preventing sediment from accumulating at the bottom of the tank, thus avoiding secondary pollution or clogging of subsequent processing procedures. Furthermore, the inner cylinder and filter screen are designed as detachable structures. When it is necessary to clean the impurities trapped by the filter screen, simply remove the inner cylinder from the sedimentation and filtration tank for quick disassembly and cleaning, significantly reducing manual cleaning difficulty and equipment downtime, and improving the operational efficiency and maintainability of the entire sedimentation and filtration process.

[0017] When the inner cylinder is lifted, the filtered cooling water flows upward through the filter screen, driving the transmission blades to rotate the rotating rod, which in turn causes the anti-clogging blades to rotate synchronously. During this process, the anti-clogging blades effectively disperse the sediment adhering to the surface of the filter screen through physical stirring, preventing impurities from accumulating and clogging the filter screen. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

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

[0020] Figure 2 This is a schematic diagram of the specific structure of the back of this utility model;

[0021] Figure 3 This is a schematic diagram of the specific structure of the lifting component in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the cooling water collection tank in this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the inner cylinder in this utility model.

[0024] In the diagram: 1. Cooling water collection tank; 2. Sedimentation and filtration tank; 201. Top cover; 3. Ion exchange tank; 4. Reverse osmosis tank; 5. Disinfection tank; 6. Connecting pipe; 7. Electric valve A; 8. Inlet pipe; 9. Electric valve B; 10. Automatic water control assembly; 1001. Sliding rod; 1002. Sliding sleeve; 1003. Float; 1004. Squeezing block; 1005. Spring switch; 11. Vertical rod; 12. Base; 13. Lifting assembly; 1301. Connecting shell; 1302. Motor; 1303. Lead screw; 1304. Rod sleeve; 1305. Guide rail; 1306. Sliding block; 1307. Connecting frame; 14. Inner cylinder; 15. Filter screen; 16. Bearing; 17. Rotating rod; 18. Anti-clogging blade; 19. Transmission blade; 20. Connecting rod. Detailed Implementation

[0025] like Figure 1-5 As shown, this utility model provides a chromium polishing cooling water recycling device based on printing plate roller polishing, including a cooling water collection tank 1, a sedimentation filter tank 2, an ion exchange tank 3, a reverse osmosis tank 4, and a disinfection tank 5 connected in sequence on a base 12. Each tank is connected to the other via a connecting pipe 6. An electric valve A7 equipped with a water pump is installed on the connecting pipe 6. An inlet pipe 8 is installed at the top of the cooling water collection tank 1, and an electric valve B9 is installed on the inlet pipe 8.

[0026] The cooling water collection tank 1 is equipped with an automatic water control component 10, which automatically closes the electric valve B9 when the water level inside the cooling water collection tank 1 is appropriate.

[0027] During the operation of the printing plate roller polishing equipment, the high-temperature cooling water generated by the chromium polishing process enters the cooling water collection tank 1 through the inlet pipe 8 (the inlet pipe 8 is connected to the wastewater discharge pipe of the printing plate roller polishing device, and the pipe is equipped with a pump). When the water volume reaches the set value, the automatic water control component 10 automatically closes the electric valve B9 to prevent overflow. Subsequently, the cooling water flows through the connecting pipe 6 and is driven by the electric valve A7 equipped with a water pump, sequentially into the sedimentation filter tank 2, ion exchange tank 3, reverse osmosis tank 4, and disinfection tank 5. Suspended solids are removed in the sedimentation filter tank 2, ion exchange resin in the ion exchange tank 3 adsorbs ionic impurities in the water, the reverse osmosis tank 4 uses a high-pressure pump and reverse osmosis membrane module for desalination, and the disinfection tank 5 kills microorganisms in the water using ultraviolet disinfection lamps or ozone generators. This process deeply treats the cooling water to meet usage standards. The treated cooling water eventually enters the recycling unit for use in the printing plate roller polishing equipment. During operation, electric valve A7 precisely controls the cooling water flow by adjusting the water pump speed and valve opening. In addition, the cooling water collection tank 1, in conjunction with the automatic water control component 10, ensures a sufficient supply of water for processing over a long period. This prevents efficiency drops or equipment malfunctions caused by unstable water flow, thus achieving efficient recycling and stable treatment of the chromium polishing cooling water.

[0028] The automatic water control assembly includes a slide rod 1001 fixed on the bottom wall of the cooling water collection tank 1, and a sliding sleeve 1002 slidably connected to the outer wall of the slide rod 1001. A float 1003 is fixedly connected to the side end of the sliding sleeve 1002, and a pressing block 1004 is fixedly connected to the top end of the sliding sleeve 1002. A spring switch 1005 for controlling the switch of the electric valve B9 is installed on the top wall of the cooling water collection tank 1.

[0029] When water is added to the cooling water collection tank 1 through the water inlet pipe 8, the water level gradually rises, causing the float 1003 to move upward. The float 1003 then moves the sliding sleeve 1002 upward, which moves linearly upward along the sliding rod 1001. The sliding sleeve 1002 then moves the pressing block 1004 upward, ultimately pressing the spring switch 1005. At this time, the electric valve A7 is closed. When the water level drops, the float 1003 also drops with the water level, causing the pressing block 1004 to stop pressing the spring switch 1005. The spring switch 1005 then automatically opens, opening the electric valve B9, allowing the water inlet pipe 8 to continue adding water.

[0030] The working principle of spring switch 1005 is based on the combination of elastic deformation and circuit switching. Spring switch 1005 adopts a normally closed design, internally consisting of a spring, conductive contacts, and a triggering mechanism. When no external force is applied, the spring provides elastic force to keep the conductive contacts closed, the electric valve B9 is open, and the water inlet pipe 8 continuously injects water into the cooling water collection tank 1. When the float 1003 rises with the water level, it moves the squeezing block 1004 upward, squeezing the triggering mechanism of spring switch 1005. The spring is compressed, the conductive contacts separate, the circuit is broken, the electric valve B9 closes, and water injection stops. When the water level drops, the pressure of the squeezing block 1004 on spring switch 1005 disappears, the spring returns to its original deformation, the conductive contacts close again, the electric valve B9 opens, and water injection resumes. In practical applications, OMRON's D2F series microswitches can be selected. This model features high sensitivity, long life, and vibration resistance. The rated current can reach 5A, and the operating voltage range is wide (DC5-24V). It can meet the needs of frequent triggering in industrial environments. Moreover, its sealed design can effectively prevent circuit failures caused by cooling water splashing, ensuring the stable operation of the automatic water control component 10.

[0031] Furthermore, a lifting assembly 13 is installed at the top of the base 12 to drive the top cover 201 of the sedimentation filter tank 2 to move up and down. The bottom of the top cover 201 is connected to the inner cylinder 14 via vertical rods 11 on both sides. A filter screen 15 is detachably connected to the bottom of the inner cylinder 14. That is, when wastewater enters the sedimentation filter tank 2, it first enters the inner cylinder 14 (entering through the connecting pipe 6 from the area supported by the vertical rods 11) and settles in the inner cylinder 14. After sedimentation, the lifting assembly 13 drives the top cover 201 to move upwards from... The upward movement of the inner cylinder 14 causes the filter screen 15 to move upward as well. The filtered cooling water passes through the filter screen on the filter screen 15 (the bottom of the filter screen 15 is the filter screen) and remains in the sedimentation filter tank 2. Impurities remain in the filter screen 15. The lifting assembly 13 then raises the inner cylinder 14 as a whole, allowing the settled cooling water to flow through the filter screen 15 into the remaining space of the tank, achieving solid-liquid separation and effectively preventing sediment buildup at the bottom of the tank, which could lead to secondary pollution or blockage of subsequent processing. Furthermore, the inner cylinder 14 and filter screen 15 are designed as detachable structures. When it is necessary to clean the impurities trapped by the filter screen 15, simply remove the inner cylinder 14 from the sedimentation filter tank 2 for quick disassembly and cleaning. This significantly reduces manual cleaning difficulty and equipment downtime, improving the operational efficiency and maintainability of the entire sedimentation filtration process.

[0032] The following is the specific structure of the lifting assembly 13: The lifting assembly 13 includes a connecting shell 1301 fixed to the top of the base 12 and open towards the sedimentation filter tank 2. A lead screw 1303 driven by a motor 1302 is installed inside the connecting shell 1301. A rod sleeve 1304 is threadedly connected to the outer wall of the lead screw 1303. The surface of the rod sleeve 1304 is connected to the top cover 201 through a connecting frame 1307.

[0033] The control panel on the device controls the clockwise or counterclockwise rotation of the motor 1302, which in turn drives the lead screw 1303 to rotate clockwise or counterclockwise. The lead screw 1303 drives the sleeve 1304 to move up and down, which in turn drives the slider 1306 to move up and down. The slider 1306 slides up and down along the guide rail 1305 to maintain the linear up and down movement of the sleeve 1304. The sleeve 1304 can then drive the top cover 201 to move up and down linearly via the connecting frame 1307, which in turn drives the inner cylinder 14 to move up and down linearly.

[0034] Furthermore, a connecting rod 20 is fixedly connected to the inner wall of the inner cylinder 14, and a bearing 16 is fixedly connected to the head of the connecting rod 20. A rotating rod 17 is fixedly connected to the inner ring of the bearing 16. An anti-clogging blade 18 located directly above the filter screen 15 is fixedly connected to the bottom end of the rotating rod 17. A transmission blade 19 is fixedly connected to the head of the rotating rod 17, which can rotate with the water flow when the inner cylinder 14 is lifted upward.

[0035] When the inner cylinder 14 is lifted upwards, the filtered cooling water flows through the filter screen 15, creating an upward water flow that drives the transmission blades 19 to rotate the rotating rod 17. The rotating rod 17 then drives the inner ring of the bearing 16 to rotate, and the inner ring of the bearing 16 rotates along with its outer ring, thus providing rotational support for the rotating rod 17. This, in turn, causes the anti-clogging blades 18 to rotate synchronously. During this process, the anti-clogging blades 18 effectively disperse the sediment adhering to the surface of the filter screen 15 through physical stirring, preventing impurities from accumulating and clogging the filter screen.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A chromium polishing cooling water recycling device based on printing plate roller polishing, characterized in that: The system includes a cooling water collection tank (1), a sedimentation filter tank (2), an ion exchange tank (3), a reverse osmosis tank (4), and a disinfection tank (5) that are connected in sequence on a base (12). Each tank is connected to the other via a connecting pipe (6). An electric valve A (7) equipped with a water pump is installed on the connecting pipe (6). An inlet pipe (8) is installed at the top of the cooling water collection tank (1), and an electric valve B (9) is installed on the inlet pipe (8). The cooling water collection tank (1) is equipped with an automatic water control component (10) to automatically close the electric valve B (9) when the water volume inside the cooling water collection tank (1) is appropriate.

2. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 1, characterized in that: The automatic water control assembly (10) includes a slide rod (1001) fixed on the inner bottom wall of the cooling water collection tank (1), and a sliding sleeve (1002) is slidably connected on the outer side wall of the slide rod (1001). A float (1003) is fixedly connected to the side end of the sliding sleeve (1002), and a squeezing block (1004) is fixedly connected to the top end of the sliding sleeve (1002). A spring switch (1005) for controlling the switch of the electric valve B (9) is installed on the inner top wall of the cooling water collection tank (1).

3. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 1, characterized in that: The top of the base (12) is also equipped with a lifting assembly (13) that drives the top cover (201) of the sedimentation filter tank (2) to move up and down. The bottom of the top cover (201) is connected to the inner cylinder (14) by a vertical rod (11). The bottom of the inner cylinder (14) is detachably connected to a filter screen cover (15).

4. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 3, characterized in that: The lifting assembly (13) includes a connecting shell (1301) fixed to the top of the base (12) and open toward the sedimentation filter tank (2). Inside the connecting shell (1301) is a lead screw (1303) driven by a motor (1302). A rod sleeve (1304) is threaded onto the outer wall of the lead screw (1303). The surface of the rod sleeve (1304) is connected to the top cover (201) through a connecting frame (1307).

5. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 4, characterized in that: The connecting shell (1301) has guide rails (1305) fixedly connected to both sides inside, and the two sides of the rod sleeve (1304) are slidably connected to the guide rails (1305) by sliders (1306).

6. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 3, characterized in that: A connecting rod (20) is fixedly connected to the inner wall of the inner cylinder (14), and a bearing (16) is fixedly connected to the head of the connecting rod (20), and a rotating rod (17) is fixedly connected to the inner ring of the bearing (16), and an anti-clogging blade (18) located directly above the filter screen (15) is fixedly connected to the bottom end of the rotating rod (17).

7. The chromium polishing cooling water recycling device based on printing plate roller polishing according to claim 6, characterized in that: The head of the rotating rod (17) is fixedly connected to a transmission blade (19), which can rotate with the water flow when the inner cylinder (14) is lifted upward.

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