A die casting release agent recovery device

Abstract

This invention discloses a die-casting release agent recovery device, relating to the field of die-casting release machine recycling technology. It includes a processing device with a guide shell on one side. A fixed frame is fixedly connected to the guide shell, and a first protective shell is fixedly connected to the fixed frame. A sliding frame is slidably connected to the first protective shell, and an oil-absorbing ring is fixedly connected to the side of the sliding frame away from the first protective shell. The guide shell is used to scrape off floating oil from the oil-absorbing ring. This invention utilizes the reciprocating motion of the oil-absorbing ring to contact and absorb floating oil from the waste liquid surface. Even under conditions of strong surface disturbance in the waste liquid, effective adsorption of floating oil can be achieved. Compared with the prior art of directly extracting floating oil, this invention utilizes the oil-absorbing characteristics of the oil-absorbing ring to more accurately identify and adsorb the oil layer, reducing water absorption while improving the purity and overall recovery efficiency of the recovered release agent.

Description

Technical Field

[0001] This invention relates to the field of die casting release agent recycling technology, and more particularly to a die casting release agent recycling device. Background Technology

[0002] Die casting release agent is a chemical preparation widely used in the die casting process. Its main function is to form a separating film on the mold surface to prevent the molten metal from directly contacting the mold, thereby avoiding problems such as casting adhesion and surface damage. It also plays a role in cooling and lubrication. Die casting release agents are usually composed of water-based or oil-based solvents and various additives. Among them, the oil-based components (such as mineral oil, silicone oil, vegetable oil derivatives, etc.) are the main separating components. Since the amount of release agent used in the die casting production process is large, and the direct discharge of its waste liquid will cause environmental pollution, and since the release agent contains some recyclable components, the recycling and treatment of die casting release agents has important economic and environmental significance.

[0003] Currently, the most common die casting release agent recovery equipment on the market is the floating oil collection device. This device mainly consists of a buoyancy module, an oil collection pipe, a collection container, and subsequent separation equipment. Its working principle is that the buoyancy module floats up and down with the surface of the waste liquid, so that the oil collection port of the oil collection pipe is always kept near the liquid surface, thereby extracting the release agent floating oil on the surface and transporting it to the oil storage container, and then further separating the oil and water through the separation equipment.

[0004] However, the device still has certain limitations in practical applications: when there is strong disturbance on the surface of the waste liquid or the oil-water separation is not obvious, the oil collection port of the oil collection pipe is difficult to accurately collect the floating oil in the waste liquid. As a result, when extracting the floating oil, the water in the lower layer is easily sucked in as well. This phenomenon not only reduces the purity of the recovered release agent, but also increases the burden on the subsequent separation equipment, affecting the recovery efficiency and reuse value. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides a die casting release agent recovery device.

[0006] The technical solution of the present invention is: a die-casting release agent recovery device, comprising a processing device, a guide shell provided on one side of the processing device, a fixed frame fixedly connected to the guide shell, a first protective shell fixedly connected to the fixed frame, a sliding frame slidably connected to the first protective shell, an oil suction ring fixedly connected to the side of the sliding frame away from the first protective shell, the guide shell being used to scrape off the floating oil on the oil suction ring, a protective tube fixedly connected between the processing device and the guide shell, and a main pipe distributed in a ring array fixedly connected inside the protective tube.

[0007] Preferably, an air supply pipe is fixedly connected inside the protective tube, an airbag is fixedly connected inside the first protective shell, the air supply pipe passes through the first protective shell and is fixedly connected to and communicates with the airbag, the side of the airbag that is not fixedly connected to the first protective shell is fixedly connected to the sliding frame, the main pipe is fixedly connected to and communicates with a first material extraction pipe, and the first material extraction pipe is fixedly connected to a second material extraction pipe.

[0008] Preferably, a first guide shell and a second guide shell are fixedly connected inside the guide shell. The oil suction ring is located between the first guide shell and the second guide shell and does not contact either of them. The first guide shell and the second guide shell are used to collect the floating oil scraped off the oil suction ring by the guide shell. The lower side of the first extraction pipe is fixedly connected to the first guide shell and is used to extract the floating oil on the first guide shell. The lower side of the second extraction pipe is fixedly connected to the second guide shell and is used to extract the floating oil on the second guide shell.

[0009] Preferably, both the first guide shell and the second guide shell are provided with a plurality of raised portions.

[0010] Preferably, both the first guide shell and the second guide shell have V-shaped cross sections, and the lower side of the first extraction tube is fixedly connected to the lowest point of the first guide shell, and the second extraction tube is fixedly connected to the lowest point of the second guide shell.

[0011] Preferably, the guide shell is fixedly connected to a first guide ring and a second guide ring, the oil suction ring is located between the first guide ring and the second guide ring, and the lower sides of the first guide ring and the second guide ring are provided with a plurality of spikes, and the distance between the first guide shell and the second guide shell is greater than the thickness of the oil suction ring.

[0012] Preferably, the first guide ring is located above the first guide shell, and the projection of the first guide ring onto the horizontal plane is located within the projection of the first guide shell onto the horizontal plane; the second guide ring is located above the second guide shell, and the projection of the second guide ring onto the horizontal plane is located within the projection of the second guide shell onto the horizontal plane.

[0013] Preferably, the guide shell is fixedly connected to a connecting frame arranged in a ring array, and each of the connecting frames arranged in the ring array has a fixing cover fixedly connected to its back side.

[0014] Preferably, the connecting frame in the ring array is fixedly connected to the back side of each of the two protective shells. The two protective shells are fixedly connected to and communicate with the adjacent fixed cover. A sliding plate is slidably connected inside the two protective shells, and a threaded rod that is rotatably connected to the sliding plate is threadedly connected to the two protective shells.

[0015] Preferably, the lower side of the fixing cover is fixedly connected to a ring-shaped array of skewer inserts, and a baffle plate fixedly connected to the lower side of the fixing cover is fixed between two adjacent skewer inserts.

[0016] The beneficial effects of the present invention are as follows: The present invention proposes a novel method for treating floating oil: before extracting the floating oil, the oil suction ring is made to come into contact with the surface of the waste liquid and adsorb the floating oil by reciprocating up and down. Even when the surface of the waste liquid is strongly disturbed, the floating oil can be effectively adsorbed. Compared with the existing method of directly extracting floating oil, the present invention utilizes the oil suction characteristics of the oil suction ring to more accurately identify and adsorb the oil layer, reduce the amount of water absorbed, and improve the purity of the recovered release agent and the overall recovery efficiency.

[0017] After the guide shell peels off the floating oil on the oil suction ring, the spike-like structure on the lower side of the first and second guide rings guides the floating oil in a directional manner, making it easier to concentrate and fall off along the guide path.

[0018] This invention replaces the existing float with a fixed cover, allowing the lower side of the fixed cover to enter the waste liquid. The space inside the fixed cover is filled with gas. Under the balance of surface tension and gas pressure, the waste liquid forms a liquid seal film on the lower side of the fixed cover, thereby fixing the gas volume inside the cover and ensuring its buoyancy stability. Stable floating can be achieved through a physical liquid seal mechanism, effectively solving the technical problem of traditional floats sinking due to pollution. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the guide shell of the present invention;

[0022] Figure 4 This is a three-dimensional structural cross-sectional view of the guide shell of the present invention;

[0023] Figure 5 This is a three-dimensional structural cross-sectional view of the first protective shell of the present invention;

[0024] Figure 6 This is an exploded three-dimensional view of the first guide shell and the second guide shell of the present invention;

[0025] Figure 7 This is a three-dimensional structural cross-sectional view of the first guide shell and the second guide shell of the present invention;

[0026] Figure 8 This is a three-dimensional structural cross-sectional view of the first guide ring and the second guide ring of the present invention;

[0027] Figure 9 This is a three-dimensional cross-sectional view of the oil suction ring of the present invention;

[0028] Figure 10 This is a three-dimensional structural cross-sectional view of the fixing cover of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 1-Processing equipment, 2-Guide shell, 3-Fixed frame, 4-First protective shell, 5-Sliding frame, 6-Oil suction ring, 7-Protective pipe, 701-Main pipe, 702-Air supply pipe, 703-Airbag, 704-First extraction pipe, 705-Second extraction pipe, 8-First guide shell, 9-Second guide shell, 10-First guide ring, 11-Second guide ring, 20-Connecting frame, 21-Fixed cover, 22-Second protective shell, 23-Sliding plate, 24-Threaded rod, 25-Installation plug, 26-Baffle plate. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] This invention addresses the problem that existing floating oil recovery devices struggle to identify the oil-water interface when encountering highly disturbed waste liquid surfaces or unclear oil-water stratification. This leads to the absorption of water, reduced recovery purity, increased separation burden, and compromised recovery efficiency and reuse value. For details, please refer to the following: Example 1

[0032] A die-casting release agent recovery device, such as Figures 1-5 and Figure 9 As shown, the device includes a processing device 1, which contains a collection container and a separation device, both of which are existing devices. A guide shell 2 is provided on one side of the processing device 1. A fixing frame 3 is fixedly connected to the guide shell 2. A first protective shell 4 is fixedly connected to the fixing frame 3. A sliding frame 5 is slidably connected to the first protective shell 4. The sliding frame 5 is shaped like a mountain. An oil-absorbing ring 6 is fixedly connected to the side of the sliding frame 5 away from the first protective shell 4. The oil-absorbing ring 6 can be made of stainless steel. Through the reciprocating motion of the oil-absorbing ring 6, it contacts the surface of the waste liquid and absorbs the floating oil. Even when the surface of the waste liquid is strongly disturbed, the floating oil can be effectively absorbed. The guide shell 2 is used to scrape the floating oil on the oil-absorbing ring 6. A protective tube 7 is fixedly connected between the processing device 1 and the guide shell 2. A main pipe 701 distributed in a ring array is fixedly connected inside the protective tube 7.

[0033] like Figure 4 , Figure 5 and Figures 7-9As shown, an air supply pipe 702 is fixedly connected inside the protective pipe 7, and an airbag 703 is fixedly connected inside the first protective shell 4. The air supply pipe 702 passes through the first protective shell 4 and is fixedly connected to and communicates with the airbag 703. The side of the airbag 703 that is not fixedly connected to the first protective shell 4 is fixedly connected to the sliding frame 5. The main pipe 701 is fixedly connected to and communicates with the first extraction pipe 704. The first extraction pipe 704 is fixedly connected to the second extraction pipe 705. The lower side of the airbag 703 is fixedly connected to the sliding frame 5. When the airbag 703 inflates, it pushes the sliding frame 5 downward to provide the power for the sliding frame 5 and the oil suction ring 6 to move downward, so that the oil suction ring 6 actively absorbs the floating oil.

[0034] like Figures 4-8 As shown, a first guide shell 8 and a second guide shell 9 are fixedly connected inside the guide shell 2. An oil-absorbing ring 6 is located between the first guide shell 8 and the second guide shell 9 but does not contact either of them. The first guide shell 8 and the second guide shell 9 are used to collect the floating oil scraped off the oil-absorbing ring 6 by the guide shell 2. The lower side of the first extraction pipe 704 is fixedly connected to the first guide shell 8 and is used to extract the floating oil on the first guide shell 8. The lower side of the second extraction pipe 705 is fixedly connected to the second guide shell 9 and is used to extract the floating oil on the second guide shell 9. A first guide ring 10 and a second guide ring 11 are fixedly connected to the guide shell 2. The oil-absorbing ring 6 is located between the first guide ring 10 and the second guide ring 11. Raised portions are provided on both the front and rear sides of the first guide shell 8 and the second guide shell 9, and these raised portions do not contact the lower sides of the first guide ring 10 and the second guide ring 11. The number of the first guide shell 8 and the first extraction pipe 704 can be set arbitrarily, but the above quantities must be the same, and the above parts must be distributed alternately. The second guide shell 9 and the first extraction pipe 704... The number of the two extraction pipes 705 can be set by the user, but the above-mentioned number must be the same, and the above-mentioned parts are distributed in a cross pattern. The upward bulges on the front and rear sides of the first guide shell 8 and the second guide shell 9 guide the floating oil, allowing the floating oil to flow freely to the lowest point of the first guide shell 8 and the second guide shell 9. The cross-sections of the first guide shell 8 and the second guide shell 9 are both V-shaped, and the lower side of the first extraction pipe 704 is fixed to the lowest point of the first guide shell 8, and the second extraction pipe 705 is fixed to the lowest point of the second guide shell 9. The floating oil is received by the first guide shell 8 and the second guide shell 9 so that the floating oil can be discharged from the first extraction pipe 704 and the second extraction pipe 705. Under the action of the V-shaped cross-sections of the first guide shell 8 and the second guide shell 9, when the floating oil falls to the upper side of the two, it can smoothly enter the first extraction pipe 704 and the second extraction pipe 705. The lower side of the first guide ring 10 and the second guide ring 11 are provided with several spikes. The distance between the first guide shell 8 and the second guide shell 9 is greater than the thickness of the oil suction ring 6.

[0035] like Figures 4-8As shown, the first guide ring 10 is located above the first guide shell 8, and the projection of the first guide ring 10 on the horizontal plane is located within the projection of the first guide shell 8 on the horizontal plane. The second guide ring 11 is located above the second guide shell 9, and the projection of the second guide ring 11 on the horizontal plane is located within the projection of the second guide shell 9 on the horizontal plane.

[0036] Working principle: Before extracting floating oil, the user connects the air supply pipe 702 to the existing pressure control equipment (which can be a piston pump), and the main pipe 701 to the existing material pump. Then, the user installs the existing float on the outside of the guide shell 2. Finally, the guide shell 2 and its accessories are placed in the pool. Under the action of the existing float, the guide shell 2 and its accessories float on the surface of the waste liquid (the first guide shell 8 and the second guide shell 9 are located on the liquid surface). This completes the preparation work before extracting floating oil.

[0037] After completing the preparatory actions for extracting floating oil, the user turns on the existing pressure control equipment and the existing material pump. The pressure control equipment delivers gas into the air bladder 703 through the air supply pipe 702, increasing the pressure inside the air bladder 703. The air bladder 703 expands and squeezes the sliding frame 5 downward, causing the sliding frame 5 to drive the oil suction ring 6 to move downward. During the downward movement, the oil suction ring 6 comes into contact with the waste liquid, thereby actively adsorbing the floating oil in the waste liquid.

[0038] After the oil suction ring 6 absorbs the floating oil, the pressure control device draws gas from the air bag 703 through the air supply pipe 702, reducing the pressure inside the air bag 703. This causes the air bag 703 to contract and move the sliding frame 5 upward. The sliding frame 5 then moves the oil suction ring 6 upward. During the upward movement of the oil suction ring 6, the floating oil comes into contact with the inner side of the guide shell 2. The oil suction ring 6 enters the guide shell 2, while the floating oil on the inner and outer sides of the oil suction ring 6 is peeled off by the obstruction of the guide shell 2. The peeled floating oil then comes into contact with the opposing sides of the first guide ring 10 and the second guide ring 11. Under the action of the spike-like structure on the lower side of the first guide ring 10 and the second guide ring 11, the floating oil is guided in a direction, making it easier to concentrate and fall along the guide path.

[0039] The floating oil, guided by the first guide ring 10 and the second guide ring 11, falls into the upper part of the first guide shell 8 and the second guide shell 9, respectively. An existing pump extracts the floating oil from the upper part of the first guide shell 8 and the second guide shell 9 via the main pipe 701, the first extraction pipe 704, and the second extraction pipe 705, respectively. After extraction, the floating oil is immediately transported to a collection container, where a separation device performs secondary processing. When further processing is needed, the pressure control device is re-controlled to supply gas into the air bladder 703 via the air supply pipe 702, increasing the pressure within the air bladder 703. This facilitates the descent of the sliding frame 5 and the oil suction ring 6, thus achieving the processing of the floating oil. Subsequent processing of the floating oil is repeated as described above. Based on the above process, the novel aspect of this invention is:

[0040] By using the airbag 703 to control the lifting and lowering of the oil suction ring 6, active adsorption of floating oil is achieved. The spiked structure of the first guide ring 10 and the second guide ring 11 is used to guide the stripped floating oil in a directional manner, achieving the following effects: improving the purity of floating oil recovery and reducing water mixing when the surface of the waste liquid is strongly disturbed or the oil-water separation is not obvious.

[0041] In existing buoyancy modules, the floats become heavier due to the adhesion of impurities or oil, resulting in a relative decrease in buoyancy. This causes the floats to sink or fail to maintain the ideal height on the waste liquid surface. Consequently, the oil collection port connected to the float is lowered, affecting its efficiency in collecting floating oil. To solve this problem, this invention replaces the existing floats with a fixed cover 21. The lower side of the fixed cover 21 is immersed in the waste liquid. Under the balance of the surface tension of the waste liquid and the gas pressure, a "liquid seal layer" is formed on the lower side of the fixed cover 21, preventing gas from escaping. Therefore, the buoyancy of the fixed cover 21 is maintained, and its height is not easily reduced. Compared with the problem of traditional floats sinking due to contamination, this design uses a physical mechanism (gas seal + liquid seal) to make the fixed cover 21 float stably on the liquid surface. Example 2

[0042] Based on Example 1, such as Figure 3 and Figure 10As shown, the guide shell 2 is fixedly connected to a ring-shaped array of connecting frames 20. Each ring-shaped array of connecting frames 20 has a fixed cover 21 fixedly connected to its opposite side. The fixed cover 21 is cone-shaped. When the lower side of the fixed cover 21 contacts the surface of the waste liquid, the waste liquid creates a liquid seal on the lower side of the fixed cover 21, preventing the gas inside the fixed cover 21 from escaping. The gas compression causes the fixed cover 21 to float on the waste liquid, providing support for the guide shell 2's operation on the liquid surface. Each ring-shaped array of connecting frames 20 has a second protective shell 22 fixedly connected to its opposite side. The second protective shell 22 is fixedly connected to and communicates with the adjacent fixed cover 21. A sliding plate 23 is slidably connected inside the second protective shell 22. 22 is threaded with a threaded rod 24 that is rotatably connected to the sliding plate 23. The lower side of the fixed cover 21 is fixedly connected with a ring array of insert pins 25. Between two adjacent insert pins 25, there is a baffle plate 26 that is fixedly connected to the lower side of the fixed cover 21. As the threaded rod 24 rotates along the second protective shell 22, it drives the sliding plate 23 to slide upward, extracting the gas in the fixed cover 21 and transferring the gas in the fixed cover 21 to the second protective shell 22. This achieves the effect of reducing the height of the guide shell 2. The lower side of the insert pin 25 is provided with two inclined surfaces to reduce the interference of the waste liquid surface when the insert pin 25 is inserted into the waste liquid. The baffle plate 26 is used to prevent floating oil on the liquid surface from entering the fixed cover 21.

[0043] Working principle: Before extracting the floating oil, the user places the guide shell 2, all the fixing covers 21 and their accessories on the liquid surface (before this, the floating oil on the liquid surface in the placement area needs to be driven away). Taking the placement process of one of the fixing covers 21 as an example:

[0044] The fixed cover 21 moves all the inserts 25 and baffles 26 on it toward the liquid surface. By using the contact between the two inclined surfaces on the lower side of the inserts 25 and the liquid surface, the impact of the fixed cover 21 and its parts on the liquid surface is reduced (reducing liquid surface fluctuation). Then, as the fixed cover 21 continues to move downward, all the baffles 26 come into contact with the liquid surface and are gradually immersed in the waste liquid. At that time, the waste liquid liquid seals the lower side of the fixed cover 21 to prevent the gas inside the fixed cover 21 from escaping, so that the guide shell 2 and its accessories float stably on the liquid surface. Then, the threaded rod 24 is rotated, so that the threaded rod 24 rotates along the adjacent second protective shell 22 and drives the sliding plate 23 to move upward. During the upward movement of the sliding plate 23, the gas inside the adjacent fixed cover 21 is extracted, so that the fixed cover 21 moves downward, thereby enhancing the stability of the fixed cover 21 and the guide shell 2.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A die-casting release agent recovery device, comprising a processing device (1), a guide shell (2) provided on one side of the processing device (1), a fixing frame (3) fixedly connected to the guide shell (2), a first protective shell (4) fixedly connected to the fixing frame (3), and a sliding frame (5) slidably connected to the first protective shell (4), characterized in that: The sliding frame (5) is fixedly connected to an oil suction ring (6) on the side away from the first protective shell (4). The guide shell (2) is used to scrape off the floating oil on the oil suction ring (6). The processing device (1) and the guide shell (2) are jointly fixedly connected to a protective tube (7). The protective tube (7) is fixedly connected to a main pipe (701) arranged in a ring array. An air supply pipe (702) is fixedly connected inside the protective tube (7), and an air bag (703) is fixedly connected inside the first protective shell (4). The air supply pipe (702) passes through the first protective shell (4) and is fixedly connected to and communicates with the air bag (703). The side of the air bag (703) that is not fixedly connected to the first protective shell (4) is fixedly connected to the sliding frame (5). The main pipe (701) is fixedly connected to and communicates with a first material extraction pipe (704), and a second material extraction pipe (705) is fixedly connected to the first material extraction pipe (704). The guide shell (2) is fixedly connected to a first guide shell (8) and a second guide shell (9). The oil suction ring (6) is located between the first guide shell (8) and the second guide shell (9) and does not contact them. The first guide shell (8) and the second guide shell (9) are used to collect the floating oil scraped off the oil suction ring (6) by the guide shell (2). The lower side of the first extraction pipe (704) is fixedly connected to the first guide shell (8). The first extraction pipe (704) is used to extract the floating oil on the first guide shell (8). The lower side of the second extraction pipe (705) is fixedly connected to the second guide shell (9). The second extraction pipe (705) is used to extract the floating oil on the second guide shell (9). Both the first guide shell (8) and the second guide shell (9) are provided with a plurality of raised portions; The cross-sections of the first guide shell (8) and the second guide shell (9) are both V-shaped, and the lower side of the first extraction tube (704) is fixed to the lowest point of the first guide shell (8), and the second extraction tube (705) is fixed to the lowest point of the second guide shell (9). The guide shell (2) is fixedly connected with a first guide ring (10) and a second guide ring (11). The oil suction ring (6) is located between the first guide ring (10) and the second guide ring (11). The lower sides of the first guide ring (10) and the second guide ring (11) are provided with a number of spikes. The distance between the first guide shell (8) and the second guide shell (9) is greater than the thickness of the oil suction ring (6). The first guide ring (10) is located above the first guide shell (8), and the projection of the first guide ring (10) on the horizontal plane is located within the projection of the first guide shell (8) on the horizontal plane. The second guide ring (11) is located above the second guide shell (9), and the projection of the second guide ring (11) on the horizontal plane is located within the projection of the second guide shell (9) on the horizontal plane.

2. The die-casting release agent recovery device according to claim 1, characterized in that: The guide shell (2) is fixedly connected to a connecting frame (20) arranged in a ring array, and a fixing cover (21) is fixedly connected to the back side of the connecting frame (20) arranged in a ring array.

3. The die-casting release agent recovery device according to claim 2, characterized in that: The connecting frame (20) is arranged in a ring array and each of the back sides is fixedly connected to a second protective shell (22). The second protective shell (22) is fixedly connected to and communicates with the adjacent fixed cover (21). A sliding plate (23) is sealed and slidably connected inside the second protective shell (22). A threaded rod (24) that is rotatably connected to the sliding plate (23) is threadedly connected to the second protective shell (22).

4. The die-casting release agent recovery device according to claim 3, characterized in that: The lower side of the fixed cover (21) is fixedly connected with a ring array of shaving plugs (25), and a shield (26) fixedly connected to the lower side of the fixed cover (21) is fixed between two adjacent shaving plugs (25).

Images