A gravity-type plate oil-water separator

Abstract

This utility model relates to the field of wastewater treatment technology and discloses a gravity-type plate oil-water separator, including a water tank shell. A cover plate is installed on the top of the water tank shell, and an inlet pipe is installed on one side of the water tank shell. A large object collection basket is arranged inside the water tank shell near the inlet pipe, and three sets of plate filter chambers are evenly arranged inside the water tank shell. An inclined channel is arranged between each set of plate filter chambers, and a water tank body is installed above each set of plate filter chambers. This utility model increases the oil-water separation area and prolongs the wastewater retention time by designing multiple layers of inclined plates or inclined tubes, thereby accelerating the aggregation and floating of small oil droplets and improving the separation efficiency. Its oil-water separation efficiency can typically reach over 95%, greatly reducing the oil content in wastewater and ensuring that the discharged water quality fully complies with stringent environmental emission standards. The equipment has a relatively simple structure, low manufacturing and maintenance costs, and is suitable for large-scale applications.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a gravity-type slide plate oil-water separator. Background Technology

[0002] With the increasing awareness of ecological protection in China, more and more wastewater generated from production and daily life must be treated before being discharged, leading to the emergence of various wastewater treatment equipment.

[0003] Some machine processing plants and food processing plants generate oily wastewater, which cannot be directly discharged according to current environmental protection policies. In addition, for applications such as the pretreatment of oily wastewater from metal rolling and petrochemical industries, a primary oil-water separation device with a simple structure, convenient operation and maintenance, and large processing capacity is particularly important. It can also be used in conjunction with adsorption and membrane filtration equipment to achieve higher water quality standards.

[0004] Currently, traditional wastewater treatment methods all use gravity separation: utilizing the difference in specific gravity between oil and water to achieve oil-water separation. When oily wastewater enters the sedimentation tank, due to the lower specific gravity of oil, it can float to the top and form an oil layer under appropriate conditions. After a period of time, the oil residue will sink to the bottom of the tank, requiring regular manual cleaning. At the same time, it cannot intercept and remove various solid impurities in catering wastewater, such as large amounts of food scraps and clumps of seasonings, which may cause pipe blockage during discharge. Daily cleaning and maintenance costs are high, causing inconvenience to use. Therefore, there is an urgent need for a gravity-type plate oil-water separator to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a gravity-type plate oil-water separator to solve the environmental problem of oil-water separation and subsequent discharge as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gravity-type plate oil-water separator includes a water tank shell with a cover plate installed on the top and a water inlet pipe installed on one side. Inside the water tank shell, near the water inlet pipe, a large material collection basket is provided. Three sets of plate filter chambers are evenly arranged inside the water tank shell, with inclined channels between each set. A water tank body is installed above each set of plate filter chambers, and a sedimentation chamber is located below each set of plate filter chambers. A sludge hopper is installed below the sedimentation chamber, and a drain pipe is installed on one side of each sludge hopper. An oil collection trough is located to the lower right of the right-side plate filter chamber inside the water tank shell, and an oil collection cavity is located at the top of each set of plate filter chambers. A clear water chamber is located on the other side of the water tank shell.

[0008] Preferably, the clear water chamber is connected to the plate filter chamber via a pipe.

[0009] Preferably, the number of sedimentation chambers, sludge hoppers, and drainage pipes is the same, with three sets in each case.

[0010] Preferably, the water tank shell is connected to the water pump via a water inlet pipe.

[0011] Preferably, each set of filter chambers is provided with filter inserts, and the filter chambers are connected by multiple sets of inclined plates or inclined tubes.

[0012] Preferably, each of the drain pipelines is equipped with a drain valve and a liquid level sensor, and the drain valve is connected to the intelligent control system.

[0013] Preferably, the water tank is equipped with a water flow regulating valve.

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

[0015] 1. This utility model increases the oil-water separation area and extends the wastewater retention time by designing multiple inclined plates or tubes in the plate filter chamber, thereby accelerating the aggregation and floating of small oil droplets and improving the separation efficiency. Its oil-water separation efficiency can usually reach more than 95%, greatly reducing the oil content in wastewater and ensuring that the discharged water quality fully meets the stringent environmental emission standards.

[0016] 2. By setting up a large collection basket, a sedimentation chamber, and a sludge hopper, this utility model not only excels at separating oil and water but also possesses a powerful ability to handle impurities; it can effectively intercept and remove various solid impurities in catering wastewater, reducing the potential pollution risks to the surrounding environment.

[0017] 3. This utility model achieves automatic oil and sludge discharge functions by installing a liquid level sensor and an intelligent control system. When the oil or sludge layer in the oil separation sedimentation zone accumulates to a certain thickness, the system will automatically open the oil discharge valve and sludge discharge valve to discharge the separated grease and precipitated food residue and other sludge from the equipment. No frequent manual operation is required, ensuring continuous and stable operation of the equipment.

[0018] 4. This utility model adjusts the water flow rate according to the grease and impurities content in the wastewater by setting a regulating valve on the water tank to achieve the best treatment effect; at the same time, the separator's baffle is designed to be movable, so that the baffle can be easily pulled out for cleaning during daily maintenance.

[0019] 5. This utility model of oil-water separator reduces resource waste and has certain economic benefits by recycling the separated oil resources. Furthermore, the equipment has low energy consumption during operation, is made of corrosion-resistant materials, and has a long service life, significantly reducing the overall operating costs of catering enterprises while also making a positive contribution to environmental protection. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0023] In the diagram: 1. Inlet pipe; 2. Cover plate; 3. Large object collection basket; 4. Water tank body; 5. Plate filter chamber; 6. Sedimentation chamber; 7. Sludge hopper; 8. Oil collection chamber; 9. Clear water chamber; 10. Oil collection trough; 11. Drain pipe; 12. Water tank shell. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the specific implementation of the present utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size.

[0025] Please see Figure 1-2 A gravity-type plate oil-water separator includes a water tank shell 12, a cover plate 2 installed on the top of the water tank shell 12, and an inlet pipe 1 installed on one side of the water tank shell 12. Inside the water tank shell 12, near the inlet pipe 1, a large object collection basket 3 is provided, and three sets of plate filter chambers 5 are evenly arranged inside the water tank shell 12. An inclined channel is provided between each set of plate filter chambers 5. A water tank body 4 is installed above each set of plate filter chambers 5, and a sedimentation chamber 6 is provided below each set of plate filter chambers 5. A sludge hopper 7 is installed below the sedimentation chamber 6, and a drain pipe 11 is installed on one side of each sludge hopper 7. An oil collection trough 10 is provided inside the water tank shell 12 at the lower right of the right-side plate filter chamber 5, and an oil collection cavity 8 is provided at the top of each set of plate filter chambers 5. A clear water chamber 9 is provided on the other side of the water tank shell 12.

[0026] The clear water chamber 9 is connected to the plate filter chamber 5 via a pipe.

[0027] Among them, the number of sedimentation chamber 6, sludge hopper 7, and discharge pipeline 11 are the same, all in three sets.

[0028] The water tank shell 12 is connected to the water pump through the water inlet pipe 1.

[0029] Each set of filter chambers 5 is equipped with a filter plate, and the filter chambers 5 are connected to each other by multiple sets of inclined plates or inclined tubes.

[0030] Each set of venting pipelines 11 is equipped with a venting valve and a liquid level sensor, and the venting valve is connected to the intelligent control system.

[0031] The water tank 4 is equipped with a water flow regulating valve.

[0032] It should be noted that in this utility model, a gravity-type plate oil-water separator is composed of a water tank shell 12, a water inlet pipe 1, a large object filter collection basket 3, a filter plate chamber 5, a sedimentation chamber 6, a sludge hopper 7, an oil collection tank 8, an empty pipe 11, an oil collection tank 10, and a clear water chamber 9.

[0033] During operation, oil-water separation is achieved through gravity settling and buoyancy. First, a water pump injects oily wastewater into the large-scale filter collection basket 2 through the inlet pipe 1. A large amount of solid impurities, such as food scraps and clumps of seasonings, fall to the bottom of the large-scale filter collection basket 2. The large-scale filter collection basket 2 is removable for regular cleaning to prevent these impurities from clogging subsequent drainage pipes and to reduce the potential for pollution to the surrounding environment. Then, the oily wastewater from the large-scale filter collection basket 2 flows along the inclined channel inside the water tank shell 1 into the first set of filter plate chambers 5. When the oily wastewater enters the first set of filter plate chambers 5, the water flow rate decreases, and oil droplets gradually rise to the surface and enter the oil collection chamber 8, while solid particles sink through the settling chamber 6 and fall into the bottom sludge hopper 7. Then, the cleaner oily wastewater enters the second set of filter plate chambers 5, where the oil... The droplets gradually rise to the surface of the liquid and enter the oil collection chamber 8, while solid particles sink through the settling chamber 6 and fall into the bottom sludge hopper 7. Next, the cleaner oily wastewater enters the third set of filter plate chambers 5 and repeats the steps of the first and second sets of filter plate chambers 5. Finally, the water that meets the standards enters the clear water chamber 9. The cleaning and maintenance of this equipment is also very simple. First, open the drain valves on the drain pipe 11. After draining, simply pull out the filter plates and clean the water tank and filter plates. At the same time, with the help of the liquid level sensor and intelligent control system, the equipment can realize automatic oil and sludge discharge functions. When the oil collection tank 8 or sludge hopper 7 accumulates to a certain thickness, the system will automatically open the oil discharge valve and sludge discharge valve to discharge the separated oil and precipitated food residue and other sludge from the equipment. No frequent manual operation is required, which also ensures the continuous and stable operation of the equipment.

[0034] This oil-water separator allows for flexible adjustment of operating parameters based on actual conditions. The water flow rate can be appropriately adjusted according to the grease and impurity content in the wastewater to achieve optimal treatment results. Simultaneously, the separator's baffles are designed to be movable, allowing for easy removal for routine cleaning and maintenance. While efficiently treating oily wastewater from catering establishments, this oil-water separator also reduces resource waste by recycling the separated grease, resulting in economic benefits. Furthermore, the equipment has low energy consumption during operation, is made of corrosion-resistant materials, and has a long service life, significantly reducing the overall operating costs for catering businesses. It also makes a positive contribution to environmental protection. Relying solely on gravity, it has low energy consumption, low manufacturing and maintenance costs, and is suitable for large-scale applications.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gravity-type plate oil-water separator, comprising a water tank shell (12), characterized in that, A cover plate (2) is installed on the top of the water tank shell (12), and an inlet pipe (1) is installed on one side of the water tank shell (12). A large object collection basket (3) is provided inside the water tank shell (12) near the inlet pipe (1). Plate filter chambers (5) are evenly arranged inside the water tank shell (12). There are three sets of plate filter chambers (5), and an inclined channel is provided between each set of plate filter chambers (5). A [unclear text - possibly a device or equipment] is installed above each set of plate filter chambers (5). The water tank body (4) has a sedimentation chamber (6) below each set of plate filter chambers (5), a sludge hopper (7) is installed below the sedimentation chamber (6), and a drain pipe (11) is installed on one side of the sludge hopper (7). An oil collection tank (10) is provided inside the water tank shell (12) at the lower right of the right plate filter chamber (5), and an oil collection cavity (8) is provided at the top of each set of plate filter chambers (5). A clear water chamber (9) is provided on the other side of the water tank shell (12).

2. The gravity-type slide plate oil-water separator according to claim 1, characterized in that: The clear water chamber (9) is connected to the plate filter chamber (5) via a pipe.

3. The gravity-type slide plate oil-water separator according to claim 1, characterized in that: The number of sedimentation chambers (6), sludge hoppers (7), and discharge pipes (11) are all the same, with three sets each.

4. A gravity-type slide plate oil-water separator according to claim 1, characterized in that: The water tank shell (12) is connected to the water pump through the water inlet pipe (1).

5. A gravity-type slide plate oil-water separator according to claim 1, characterized in that: Each set of the insert filter chambers (5) is provided with filter inserts, and the insert filter chambers (5) are connected to each other by multiple sets of inclined plates or inclined tubes.

6. A gravity-type slide plate oil-water separator according to claim 1, characterized in that: Each of the drain pipes (11) is equipped with a drain valve and a liquid level sensor, and the drain valve is connected to the intelligent control system.

7. A gravity-type slide plate oil-water separator according to claim 1, characterized in that: A water flow regulating valve is installed on the water tank (4).

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