A waste emulsion pretreatment pre-filtering device
By improving the structure of the filter device and the automated cleaning system, the problem of time-consuming and labor-intensive iron filings cleaning in existing devices has been solved, achieving efficient and convenient iron filings cleaning and filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINDINGFENG ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
Smart Images

Figure CN224388982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste emulsion treatment technology, specifically to a waste emulsion pretreatment pre-filtration device. Background Technology
[0002] Emulsions are commonly used in metal cutting and most heavy-duty machining and grinding processes due to their excellent heat dissipation and cleaning properties. When turning ferrous workpieces, emulsions can be sprayed onto the turning area. The emulsions can carry away the heat from the turning area, thus cooling it down. They can also wash away iron filings, allowing them to be discharged along with the emulsion. However, when recycling waste emulsions, they need to be pumped into a treatment device using a submersible pump. The iron filings mixed in with the waste emulsion can scratch the working surface of the submersible pump, damaging it, clogging it, or even burning it out. Therefore, pre-filtration of the waste emulsion is necessary.
[0003] A search revealed a patent publication number CN215627394U published on January 25, 2022, for a pre-treatment and pre-filtration device for waste emulsion. The device is broadly described as including a tank and a cover detachably connected to the tank. The cover has an inlet for introducing waste emulsion, and the bottom of the tank has an outlet for discharging waste emulsion. A filter screen is detachably connected to the tank, forming a stirring space within the filter screen for agitating the waste emulsion. The side and bottom walls of the filter screen and the tank form flow spaces to accommodate the waste emulsion. A stirring assembly is installed within the stirring space to agitate and lift the emulsion. A magnetic component is installed on the inner wall of the tank to adsorb iron filings in the waste emulsion. A guide assembly is installed on the cover to guide the waste emulsion into the stirring space. The device features the ability to filter iron filings, preventing damage to the pump body, and high filtration efficiency.
[0004] Although the existing technical solution described above can filter iron filings and prevent damage to the pump body, the filter screen needs to be removed from the top of the equipment when cleaning the iron filings, which is time-consuming, labor-intensive, and very troublesome, reducing work efficiency. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a pre-filtration device for waste emulsion pretreatment, which solves the problem mentioned in the background technology that when cleaning iron filings, it is necessary to remove the filter screen from the top of the equipment, which is time-consuming, labor-intensive, and very troublesome, reducing work efficiency.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a pre-filtration device for waste emulsion pretreatment, comprising a treatment box and a filter screen frame. The bottom of the treatment box is provided with a discharge pipe and a valve. A support frame is fixedly connected to the lower inner wall of the treatment box. The filter screen frame is fixedly connected to the top of the support frame. A fixing frame is fixedly connected to the outer wall of the filter screen frame near the top. Multiple evenly distributed support rods are fixedly connected between the fixing frame and the inner wall of the treatment box. A first discharge port is opened on one side of the filter screen frame near the bottom. A second discharge port, cooperating with the first discharge port, is opened on the treatment box. A material passage groove is provided between the second discharge port and the first discharge port. A sealing element is slidably connected inside the material passage groove. A sealing gasket is provided on the sealing element, one end of which is tightly attached to the material passage groove. One end of the sealing element passes through the second discharge port and is connected to a sealing cap.
[0009] By adopting the above technical solution, waste emulsion is poured into a filter screen frame, which filters the waste emulsion. Iron filings remain in the filter screen frame, and the emulsion flows through the filter screen frame to the bottom of the treatment tank, and then is discharged through the discharge pipe. After the emulsion is discharged, the sealing cover is opened, and the sealing cover is pulled to disengage the sealing component from the feed trough and the second discharge port. At this time, personnel can clean out the iron filings remaining in the filter screen frame through the first discharge port, the feed trough, and the second discharge port. After cleaning, the sealing component and sealing gasket can be inserted into the feed trough, and the sealing cover can be connected to the treatment tank. At this time, the equipment can be used to facilitate the cleaning of iron filings and improve work efficiency.
[0010] Optionally, the filter frame has four matching rotating holes near the bottom, and two matching rotating rods are rotatably connected between the four rotating holes. Both ends of the two rotating rods are rotatably connected to the inner side wall of the treatment box. A motor connected to the rotating rods is installed on the outer wall of the treatment box. Each of the two rotating rods is equipped with a transmission roller located inside the filter frame. A transmission belt is connected between the two transmission rollers, and multiple evenly distributed paddles are fixedly connected to the transmission belt.
[0011] By adopting the above technical solution, when cleaning iron filings, the starting motor drives the rotating rod to rotate, the rotating rod drives the transmission roller to rotate, and the transmission roller drives the transmission belt and the paddle to rotate, so that the paddle moves the iron filings at the bottom of the filter screen frame, thereby facilitating the movement of the iron filings to the first discharge port, thus facilitating the cleaning of the iron filings, thereby achieving the purpose of saving manpower and improving work efficiency.
[0012] Optionally, a magnetic block is fixedly connected to one end of each of the plurality of paddles.
[0013] By adopting the above technical solution, the magnetic block is used to attract iron filings when the agitator rotates, thereby reducing the residue of iron filings inside the equipment, thus improving the cleaning effect and facilitating the reuse of the equipment.
[0014] Optionally, both of the rotating rods are provided with sealed bearings between themselves and the rotating holes.
[0015] By adopting the above technical solution, the sealed bearing facilitates the rotation of the rotating rod inside the rotating hole and improves the sealing performance of the rotating hole, preventing iron filings from seeping into the space between the rotating rod and the rotating hole and causing damage to the equipment.
[0016] Optionally, an inclined shield is fixedly connected to the top of the processing box, with the bottom end of the inclined shield close to the top of the filter frame.
[0017] By adopting the above technical solution, the inclined shielding component is used to block the gap between the treatment tank and the filter screen frame, so as to prevent the waste emulsion from being poured into the gap between the treatment tank and the filter screen frame when the waste emulsion is poured out, causing direct discharge and affecting the filtration effect of the equipment on the waste emulsion.
[0018] Optionally, the lower inner side wall of the treatment box is provided with a guide that cooperates with the discharge pipe.
[0019] By adopting the above technical solution, the guide component is used to guide the emulsion flowing to the bottom of the treatment tank, so that the emulsion flows to the position of the discharge pipe, which facilitates discharge and reduces the emulsion residue inside the equipment.
[0020] (III) Beneficial Effects
[0021] In summary, this utility model has at least one of the following beneficial technical effects:
[0022] This waste emulsion pretreatment and pre-filtration device involves pouring the waste emulsion into a filter screen frame, which filters the emulsion, leaving iron filings behind. The emulsion flows through the filter screen frame to the bottom of the treatment tank and is then discharged through a drain pipe. After the emulsion is discharged, the sealing cover is opened, and pulling the cover disengages the sealing element from the feed trough and the second discharge port. At this point, personnel can clean out the iron filings remaining in the filter screen frame through the first discharge port, feed trough, and second discharge port. After cleaning, the sealing element and sealing gasket can be inserted into the feed trough, and the sealing cover can be connected to the treatment tank. The equipment can then be used to facilitate the cleaning of iron filings and improve work efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the first side view of the present invention;
[0024] Figure 2 This is a schematic diagram of the second side view of the present invention;
[0025] Figure 3 This is a first cross-sectional view of the present invention.
[0026] Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure at point A;
[0027] Figure 5 This is a second cross-sectional view of the present invention.
[0028] Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point B in the middle.
[0029] In the diagram: 1. Processing box; 2. Filter screen frame; 3. Discharge pipe; 4. Support frame; 5. Fixing frame; 6. Support rod; 7. Material chute; 8. Sealing component; 9. Sealing gasket; 10. Sealing cover; 11. Rotating rod; 12. Motor; 13. Transmission roller; 14. Transmission belt; 15. Paddle; 16. Magnetic block; 17. Sealed bearing; 18. Angled shield; 19. Guide component. Detailed Implementation
[0030] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] The present invention will be further described in detail below with reference to the accompanying drawings.
[0032] Reference Figures 1-6A pre-filtration device for waste emulsion pretreatment includes a treatment tank 1 and a filter frame 2. A discharge pipe 3 is located at the bottom of the treatment tank 1, and a valve is installed on the discharge pipe 3. A support frame 4 is fixedly connected to the lower inner wall of the treatment tank 1. The filter frame 2 is fixedly connected to the top of the support frame 4. A fixing frame 5 is fixedly connected to the outer wall of the filter frame 2 near the top. Multiple evenly distributed support rods 6 are fixedly connected between the fixing frame 5 and the inner wall of the treatment tank 1. A first discharge port is opened on one side of the filter frame 2 near the bottom. A second discharge port, which cooperates with the first discharge port, is opened on the treatment tank 1. A material passage trough 7 is provided between the second discharge port and the first discharge port. A sealing member 8 is slidably connected inside the material passage trough 7, and a sealing gasket 9 is provided on the sealing member 8. One end of the sealing gasket 9 is tightly pressed against the material passage trough 7. The material trough 7 has a sealing member 8 at one end that passes through the second discharge port and is connected to a sealing cap 10. Waste emulsion is poured into the filter screen frame 2, which filters the waste emulsion. Iron filings remain in the filter screen frame 2, and the emulsion flows through the filter screen frame 2 to the bottom of the treatment tank 1, and then is discharged through the discharge pipe 3. After the emulsion is discharged, the sealing cap 10 is opened, and the sealing cap 10 is pulled to move the sealing member 8 away from the material trough 7 and the second discharge port. At this time, personnel can clean out the iron filings remaining in the filter screen frame 2 through the first discharge port, the material trough 7, and the second discharge port. After cleaning, the sealing member 8 and the sealing gasket 9 can be inserted into the material trough 7, and the sealing cap 10 can be connected to the treatment tank 1. At this time, the equipment can be used to facilitate the cleaning of iron filings and improve work efficiency.
[0033] Reference Figures 1-6 The filter frame 2 has four matching rotating holes near its bottom. Two matching rotating rods 11 are rotatably connected between the four rotating holes. Both ends of the two rotating rods 11 are rotatably connected to the inner side wall of the processing box 1. A motor 12 connected to the rotating rods 11 is installed on the outer wall of the processing box 1. Each of the two rotating rods 11 is equipped with a transmission roller 13 located inside the filter frame 2. A transmission belt 14 is connected between the two transmission rollers 13. Multiple evenly distributed paddles 15 are fixedly connected to the transmission belt 14. When cleaning iron filings, the motor 12 is started to drive the rotating rods 11 to rotate. The rotating rods 11 drive the transmission rollers 13 to rotate. The transmission rollers 13 drive the transmission belt 14 and the paddles 15 to rotate, so that the paddles 15 paddle the iron filings at the bottom of the filter frame 2, thereby facilitating the movement of the iron filings to the first discharge port for easy cleaning. This achieves the purpose of saving manpower and improving work efficiency.
[0034] Reference Figure 5 and Figure 6 Each of the multiple paddles 15 has a magnetic block 16 fixedly connected to one end. The magnetic block 16 is used to attract iron filings when the paddles rotate, thereby reducing the residue of iron filings inside the equipment, thus improving the cleaning effect and facilitating the reuse of the equipment.
[0035] Reference Figure 3 and Figure 4 Both rotating rods 11 are provided with sealed bearings 17 between themselves and the rotating holes. The sealed bearings 17 are used to facilitate the rotation of the rotating rods 11 inside the rotating holes and to improve the sealing of the rotating holes, so as to prevent iron filings from seeping into the space between the rotating rods 11 and the rotating holes and causing damage to the equipment.
[0036] Reference Figure 1 and Figure 5 An inclined shielding member 18 is fixedly connected to the top of the treatment tank 1. The bottom end of the inclined shielding member 18 is close to the top of the filter screen frame 2. The inclined shielding member 18 is used to block the gap between the treatment tank 1 and the filter screen frame 2 to prevent the waste emulsion from being poured between the treatment tank 1 and the filter screen frame 2 when the waste emulsion is poured, causing direct discharge and affecting the filtration effect of the equipment on the waste emulsion.
[0037] Reference Figure 3 and Figure 5 The lower inner side wall of the treatment tank 1 is provided with a guide 19 that cooperates with the discharge pipe 3. The guide 19 is used to guide the emulsion flowing to the bottom of the treatment tank 1 so that the emulsion flows to the position of the discharge pipe 3 for easy discharge and to reduce the emulsion residue inside the equipment.
[0038] In summary, the working principle and process of the waste emulsion pretreatment pre-filtration device are as follows: First, the waste emulsion is poured into the filter screen frame 2, allowing the filter screen frame 2 to filter the waste emulsion. Iron filings remain in the filter screen frame 2, and the emulsion flows through the filter screen frame 2 to the bottom of the treatment tank 1, and then is discharged through the discharge pipe 3. After the emulsion is discharged, the sealing cover 10 is opened, and the sealing cover 10 is pulled to disengage the sealing element 8 from the material passage 7 and the second discharge port. At this time, personnel can clean out the iron filings remaining in the filter screen frame 2 through the first discharge port, the material passage 7, and the second discharge port. After cleaning, the sealing element 8 and the sealing gasket 9 can be inserted into the material passage 7, and the sealing cover 10 can be connected to the treatment tank 1. The equipment can then be used to facilitate the cleaning of iron filings, thereby improving work efficiency. When cleaning iron filings, the motor 12 is started, driving the rotating rod 11 to rotate. The rotating rod 11 drives the transmission roller 13 to rotate, and the transmission roller 13 drives the transmission belt 14 and the paddle 15 to rotate, causing the paddle... The plate 15 moves the iron filings at the bottom of the filter screen frame 2, thus facilitating the cleaning of the iron filings and saving manpower while improving work efficiency. The magnetic block 16 is used to attract the iron filings when the plate rotates, thereby reducing the residue of iron filings inside the equipment and improving the cleaning effect, making the equipment more reusable. The sealed bearing 17 facilitates the rotation of the rotating rod 11 inside the rotating hole and improves the sealing of the rotating hole, preventing iron filings from seeping between the rotating rod 11 and the rotating hole and causing damage to the equipment. The oblique shield 18 is used to block the gap between the treatment tank 1 and the filter screen frame 2, preventing the waste emulsion from being poured between the treatment tank 1 and the filter screen frame 2, causing direct discharge and affecting the filtration effect of the equipment on the waste emulsion. The guide 19 is used to guide the emulsion flowing to the bottom of the treatment tank 1, so that the emulsion flows to the position of the discharge pipe 3 for easy discharge and reducing the residue of emulsion inside the equipment.
[0039] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A waste emulsion pretreatment prefiltering device comprising a treatment tank (1), characterized in that: The treatment box (1) includes a filter screen frame (2), a discharge pipe (3) at the bottom, a valve on the discharge pipe (3), a support frame (4) fixedly connected to the inner lower side wall of the treatment box (1), the filter screen frame (2) fixedly connected to the top of the support frame (4), a fixed frame (5) fixedly connected to the outer wall of the filter screen frame (2) near the top, and multiple evenly distributed support rods (6) fixedly connected between the fixed frame (5) and the inner side wall of the treatment box (1). A first discharge port is opened on one side of the filter screen frame (2) near the bottom, and a second discharge port that cooperates with the first discharge port is opened on the treatment box (1). A material passage groove (7) is provided between the second discharge port and the first discharge port. A sealing member (8) is slidably connected inside the material passage groove (7). A sealing gasket (9) is provided on the sealing member (8). One end of the sealing gasket (9) is tightly attached to the material passage groove (7). One end of the sealing member (8) passes through the second discharge port and is connected to a sealing cap (10).
2. The pre-treatment pre-filtering device for waste emulsion according to claim 1, characterized in that: The filter screen frame (2) has four matching rotating holes near the bottom. Two matching rotating rods (11) are rotatably connected between the four rotating holes. Both ends of the two rotating rods (11) are rotatably connected to the inner side wall of the processing box (1). A motor (12) connected to the rotating rods (11) is installed on the outer wall of the processing box (1). Both rotating rods (11) are equipped with transmission rollers (13) located inside the filter screen frame (2). A transmission belt (14) is connected between the two transmission rollers (13). Multiple evenly distributed paddles (15) are fixedly connected to the transmission belt (14).
3. The pre-treatment pre-filtering device for waste emulsion according to claim 2, characterized in that: Each of the multiple paddles (15) has a magnetic block (16) fixedly connected to one end.
4. The pre-treatment pre-filtering device for waste emulsion according to claim 2, characterized in that: Both of the rotating rods (11) are provided with sealed bearings (17) between them and the rotating holes.
5. The pre-treatment pre-filtering device for waste emulsion according to claim 1, characterized in that: The top of the processing box (1) is fixedly connected to an oblique shield (18), and the bottom end of the oblique shield (18) is close to the top of the filter frame (2).
6. The pre-treatment pre-filtering device for waste emulsion according to claim 1, characterized in that: The lower inner side wall of the treatment box (1) is provided with a guide (19) that cooperates with the discharge pipe (3).