Device for collecting floating oil in alkali liquor tank
By designing an oil collection device inside the alkali tank, the floating oil on the surface of the alkali solution is automatically skimmed off, solving the problem of high risk associated with manual skimming, improving the cleanliness and purity of the alkali solution, reducing production costs and wastewater pollution, and achieving resource recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 铜陵有色金属集团股份有限公司
- Filing Date
- 2025-03-18
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, manually skimming off floating oil from the alkali tank is highly dangerous, makes it difficult to guarantee the cleanliness of the alkali, and leads to increased production costs and product defect risks.
Design a floating oil collection device in an alkali tank, which uses components such as a stainless steel float support frame, a stainless steel funnel-shaped oil suction device and a diaphragm pump to automatically remove floating oil from the surface of the alkali solution and avoid manual contact.
It enables automated skimming of oil, reduces the risk of worker injury, improves the cleanliness and purity of alkali solution, reduces production costs and wastewater pollution, and facilitates resource recycling.
Smart Images

Figure CN224180298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of degreasing and cleaning technology for copper strips, and in particular to a floating oil collection device in an alkaline solution tank. Background Technology
[0002] Degreasing and cleaning play a crucial role in the production of copper strips, as it is a key step in accurately removing residual grease and various impurities from the surface of the copper strip. This process has a decisive impact on improving the quality of the copper strip, ensuring the purity of the product, and its final performance.
[0003] In actual use, the alkali solution in cleaning lines and air cushion furnace annealing lines is completely replaced on a monthly cycle. It is difficult to guarantee the cleanliness of the alkali solution in the tank throughout the usage period, which can easily cause defects such as blemishes on the surface of the strip after degreasing and cleaning. Due to the long replacement cycle and the difficulty in guaranteeing cleanliness, more frequent equipment maintenance and cleaning may be required, as well as handling of defective products, thus increasing production costs.
[0004] To address the aforementioned issue of ensuring the cleanliness of the alkali solution within the tank, the surface oil is manually skimmed off. Manual skimming directly removes grease and other impurities from the alkali solution surface, thereby improving its cleanliness. This helps ensure the effectiveness of the alkali solution during degreasing and cleaning, reducing the risk of defects such as blemishes on the strip surface. Furthermore, regular skimming reduces the accumulation of grease and other impurities in the alkali solution, extending its service life.
[0005] However, during the manual skimming of oil, the lye solution is heated to approximately 45°C by an internal heater, which greatly increases the difficulty and danger of manual skimming. Prolonged contact with the lye solution or accidental splashing onto the skin can still cause redness, swelling, pain, or even burns. Especially during the skimming process, improper operation or use of inappropriate tools can easily lead to lye splashing. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a floating oil collection device in an alkali tank, which solves the problem that manual skimming of floating oil may be dangerous in existing technologies.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An oil-floating collection device for an alkali solution tank includes an alkali solution tank body containing alkali solution. A stainless steel float support frame floats atop the alkali solution. A stainless steel pipe is fixedly connected to the middle of the stainless steel float support frame, and a stainless steel funnel-shaped oil suction device is fixedly connected to the top of the stainless steel pipe. A hollow stainless steel float is positioned at the top of the stainless steel float support frame, ensuring that it does not tilt as the liquid level rises and falls. This allows for better removal of oil floating on the surface of the alkali solution.
[0009] As a further improvement of this utility model, a support block is fixedly connected to the top of the alkali tank body, and a sliding groove is formed on the side of the alkali tank body away from the support block. Two sliding blocks are symmetrically slidably connected inside the sliding groove. This prevents dust from entering the alkali tank body.
[0010] As a further improvement of this utility model, a dust-isolating plate is fixedly connected to the middle of the two sliding blocks, and a handle is fixedly connected to the top of the dust-isolating plate. An oil storage tank is fixedly connected to the side of the alkali tank body away from the sliding groove. This allows for the unified collection of skimmed oil.
[0011] As a further improvement of this utility model, a diaphragm pump is fixedly connected to the top of the support block. An oil outlet pipe is provided on the side of the diaphragm pump near the oil storage tank, and the bottom end of the oil outlet pipe is fixedly connected to the top of the oil storage tank. An inlet pipe is provided at the end of the diaphragm pump away from the oil outlet pipe. This ensures that floating oil is transferred from the alkali tank body to the inside of the oil storage tank.
[0012] As a further improvement of this utility model, a connecting pipe is fixedly connected to the side of the inlet pipe away from the diaphragm pump, and a positioning angled bend is fixedly connected to the side of the connecting pipe away from the inlet pipe. A high-temperature corrosion-resistant hose is fixedly connected to the bottom end of the positioning angled bend, and the top end of the high-temperature corrosion-resistant hose, on the side away from the positioning angled bend, is fixedly connected to the bottom end of the stainless steel pipe. This allows the stainless steel funnel-shaped oil suction device to float on the surface of the alkaline solution without being tipped over.
[0013] As a further improvement of this utility model, a stainless steel funnel-shaped oil suction device is fixedly connected to the top of the stainless steel pipe. The top of the stainless steel funnel-shaped oil suction device has three semi-circular guide ports. Three fixing nuts are movably connected to the surface of the stainless steel float support frame. Three stainless steel hollow floats are provided, and each of the three stainless steel hollow floats is fixedly connected to the top of one of the three fixing nuts. This allows for better buoyancy generation.
[0014] Compared with the prior art, the advantages of this utility model are as follows:
[0015] 1. The system utilizes a stainless steel float support frame, a stainless steel funnel-shaped oil suction device, semi-circular guide ports, and a stainless steel hollow float. Due to the density difference between the alkaline solution and the floating oil, three semi-circular guide ports are opened at the top of the stainless steel funnel-shaped oil suction device. This allows the floating oil to enter the high-temperature corrosion-resistant hose through the semi-circular guide ports after the top of the stainless steel funnel-shaped oil suction device is pressed into it. Under the buoyancy of the stainless steel hollow float, the top of the stainless steel funnel-shaped oil suction device will not enter the alkaline solution, thus avoiding the simultaneous removal of the alkaline solution. The three semi-circular guide ports on the stainless steel funnel-shaped oil suction device can increase the surface area for treating floating oil, and the three semi-circular guide ports can create a tension difference to accelerate the flow rate of the surface floating oil. The high-temperature corrosion-resistant flexible hose connected to the bottom of the stainless steel funnel-shaped oil suction device, along with the U-shaped bend formed by the inlet pipe fixed to the alkali tank body, controls the diaphragm pump to rise and fall with the liquid level changes caused by equipment operation, preventing tilting. This achieves automated skimming of oil from the alkali surface. Automated skimming avoids direct contact between personnel and the alkali, reducing the risk of injury. Furthermore, manual skimming is typically a heavy and tedious task, easily leading to worker fatigue and boredom. Automated systems can reduce the labor intensity of workers, improving their job satisfaction and efficiency.
[0016] 2. The system, consisting of an oil storage tank, a diaphragm pump, an oil outlet pipe, and a high-temperature corrosion-resistant hose, collects floating oil from the top of the alkali solution. After falling into the high-temperature corrosion-resistant hose through a stainless steel funnel-shaped suction device, the diaphragm pump, upon activation, forces the oil through the inlet and outlet pipes into the oil storage tank. This centralized collection of floating oil from the top of the alkali solution effectively removes grease and other impurities, improving its cleanliness and purity. The floating oil may also contain valuable components, such as lubricants or additives. Centralized collection and proper treatment of this oil allows for resource recovery and utilization, reducing production costs. Furthermore, centralized collection of floating oil from the top of the alkali solution helps reduce the amount of industrial wastewater discharged and the content of pollutants. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a structural schematic diagram of the present invention from another angle.
[0019] Figure 3 This is a schematic diagram of the structure of the alkali tank body and the sliding groove in this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of the ash partition, handle and sliding block in this utility model.
[0021] Figure 5This is a schematic diagram of the structure of the oil storage tank, diaphragm pump, and positioning angle bend in this utility model.
[0022] Figure 6 This is a schematic diagram of the stainless steel funnel-shaped oil suction device, the semi-circular guide port, and the stainless steel hollow float in this utility model.
[0023] In the diagram: 101, Alkali tank; 102, Support block; 103, Ash baffle plate; 104, Handle; 105, Sliding block; 106, Sliding groove; 107, Oil storage tank; 201, Diaphragm pump; 202, Oil outlet pipe; 203, Inlet pipe; 204, Connecting pipe; 205, Positioning angle bend pipe; 206, High-temperature corrosion resistant hose; 207, Stainless steel pipe; 208, Stainless steel float support frame; 209, Stainless steel funnel-shaped oil suction device; 210, Semi-circular guide port; 211, Fixing nut; 212, Stainless steel hollow float. 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 are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0026] As shown in the figure, an oil collection device for an alkali tank includes an alkali tank body 101, a dust separator 103, an oil storage tank 107, a diaphragm pump 201, a high-temperature corrosion resistant hose 206, a stainless steel funnel-shaped oil suction device 209, and a stainless steel hollow float 212.
[0027] When the oil content inside the alkali solution reaches a certain standard, the stainless steel float support frame 208 will enter the inspection area under the action of gravity. Then, the stainless steel hollow float 212 will contact the surface of the alkali solution, and the stainless steel funnel-shaped oil suction device 209 will be submerged in the oil. Under the buoyancy of the stainless steel hollow float 212, the stainless steel funnel-shaped oil suction device 209 will not be submerged in the alkali solution. Thus, the oil on the surface of the alkali solution will enter the stainless steel funnel-shaped oil suction device 209 through the semi-circular guide port 210. Since the stainless steel pipe 207 fixedly connected to the bottom of the stainless steel funnel-shaped oil suction device 209 is connected to the high-temperature corrosion resistant hose 206, the oil will enter the high-temperature corrosion resistant hose 206. This achieves automatic skimming of the oil on the surface of the alkali solution. Automated skimming of oil can avoid direct contact between personnel and the alkali solution, thereby reducing the risk of injury.
[0028] While skimming off the floating oil, the diaphragm pump 201 is started. Since the inlet pipe 203 is connected to the input end of the diaphragm pump 201, and the inlet pipe 203 and the high-temperature corrosion-resistant hose 206 are connected sequentially by the connecting pipe 204 and the positioning angle bend pipe 205, the skimmed floating oil can be introduced into the diaphragm pump 201. Because the outlet pipe 202 connected to the output end of the diaphragm pump 201 is fixedly connected to the top of the oil storage tank 107, the skimmed floating oil is collected centrally. By centrally collecting the floating oil at the top of the alkali solution, grease and other impurities in the alkali solution can be effectively removed, thereby improving the cleanliness and purity of the alkali solution. Furthermore, by centrally collecting and properly treating this floating oil, resource recovery and utilization can be achieved, thereby reducing production costs.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for collecting floating oil in an alkali tank, comprising an alkali tank body (101), characterized in that, The alkaline tank body (101) is filled with alkaline solution. A stainless steel float support frame (208) is floating at the top of the alkaline solution. A stainless steel pipe (207) is fixedly connected to the middle of the stainless steel float support frame (208). A stainless steel funnel-shaped oil suction device (209) is fixedly connected to the top of the stainless steel pipe (207). A stainless steel hollow float (212) is provided at the top of the stainless steel float support frame (208). The stainless steel hollow float (212) can ensure that it will not tilt when the liquid level rises and falls.
2. The oil collection device in an alkali tank according to claim 1, characterized in that, A support block (102) is fixedly connected to the top of the alkali tank body (101). A sliding groove (106) is provided on the side of the alkali tank body (101) away from the support block (102). Two sliding blocks (105) are symmetrically slidably connected inside the sliding groove (106).
3. The oil collection device in an alkali tank according to claim 2, characterized in that, A dust-proof plate (103) is fixedly connected to the middle of the two sliding blocks (105), and a handle (104) is fixedly connected to the top of the dust-proof plate (103). An oil storage tank (107) is fixedly connected to the side of the alkali tank body (101) away from the sliding groove (106).
4. The oil collection device in an alkali tank according to claim 2, characterized in that, A diaphragm pump (201) is fixedly connected to the top of the support block (102). An oil outlet pipe (202) is provided on the side of the diaphragm pump (201) near the oil storage tank (107). The bottom end of the oil outlet pipe (202) is fixedly connected to the top of the oil storage tank (107). An inlet pipe (203) is provided on the end of the diaphragm pump (201) away from the oil outlet pipe (202).
5. The oil collection device in an alkali tank according to claim 4, characterized in that, A connecting pipe (204) is fixedly connected to the side of the inlet pipe (203) away from the diaphragm pump (201). A positioning bend pipe (205) is fixedly connected to the side of the connecting pipe (204) away from the inlet pipe (203). A high-temperature corrosion resistant hose (206) is fixedly connected to the bottom end of the positioning bend pipe (205). The top end of the high-temperature corrosion resistant hose (206) away from the positioning bend pipe (205) is fixedly connected to the bottom end of the stainless steel pipe (207).
6. The oil collection device in an alkali tank according to claim 5, characterized in that, The top of the stainless steel funnel-shaped oil suction device (209) is provided with three semi-circular guide ports (210). The surface of the stainless steel float support frame (208) is movably connected with three fixing nuts (211). Three stainless steel hollow floats (212) are provided, and the three stainless steel hollow floats (212) are respectively fixedly connected to the top of the three fixing nuts (211).