An oil-water separation device suitable for catering sewage

Abstract

The utility model discloses an oil -water separation device suitable for catering sewage. The device includes box, is equipped with pretreatment bin and oil -water separation bin in it. The solid residue filter basket with filter screen at the bottom is separably placed in the pretreatment bin, and the convenient isolation type cleaning of solid residue is realized. The outlet controlled by the opening and closing of the flashboard valve is arranged at the bottom of the pretreatment bin and is connected to the oil -water separation bin. The lower pressure trigger part is arranged at the bottom of the solid residue filter basket, and the trigger part is arranged on the flashboard valve. When the basket is put into the working position, the lower pressure trigger part presses the trigger part, and both parts enter the limiting mouth at the bottom of the pretreatment bin, and the flashboard valve is opened. When the basket is lifted, both parts are separated, the flashboard valve is automatically closed under the action of the elastic reset mechanism, and the escape of odor and the falling of foreign matters are effectively prevented. The device realizes the automatic linkage of cleaning maintenance and operation sealing, improves the sanitation and safety, and reduces the labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of catering wastewater treatment technology, specifically to an oil-water separation device suitable for catering wastewater. Background Technology

[0002] Oil-water separators for catering are key devices for removing grease and solid residue from wastewater. Chinese Patent CN222092755U discloses an oil-water separator for catering. Specifically, the separator features a filter screen on one side of its internal cavity, an electric telescopic rod fixedly installed on the front side of the separator near the filter screen, and a pusher assembly fixedly connected to the output end of the electric telescopic rod. A through-slot is formed at the end of the filter screen away from the electric telescopic rod, and a collection cabinet is fixedly connected to the side of the through-slot. A blocking mechanism for shielding the through-slot is fixedly installed at the top of the collection cabinet. The pusher assembly includes a pressure plate, with a scraper and a hard brush fixedly connected to both sides of the bottom of the pressure plate. This oil-water separator for catering uses a filter screen for initial solid-liquid separation, and then the pressure plate on the pusher assembly squeezes food residue against the baffle in the through-slot cavity, causing the liquid adsorbed in the food residue to be squeezed out, thus improving the solid-liquid separation effect. This patent uses a fixed filter screen and is equipped with a complex mechanical pushing and baffle mechanism to clean and collect solids. However, in environments with high temperature, high humidity, and heavy oil pollution, the precision conveying components are prone to oil adhesion, corrosion, and jamming, resulting in a high failure rate. Furthermore, the mechanical squeezing method creates unsanitary corners, making cleaning and maintenance extremely inconvenient. Cleaning the filter screen with scrapers and hard brushes is ineffective, and when cleaning the filter screen with hard brushes, filter residue easily falls into the oil-water separator, resulting in poor solid-liquid separation. Therefore, there is an urgent need for an oil-water separation device suitable for catering wastewater that is simple in structure, resistant to oil and corrosion, requires no power drive, and is convenient for daily maintenance and cleaning. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an oil-water separation device suitable for catering wastewater, which has a simple structure, is resistant to oil and corrosion, requires no power drive, and is convenient for daily maintenance and cleaning.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an oil-water separation device suitable for catering wastewater, including a box, a pretreatment chamber and an oil-water separation chamber are provided inside the box, the top of the pretreatment chamber is provided with an opening, a solid sludge filter basket is detachably placed inside the pretreatment chamber, and a filter screen is provided on the bottom of the solid sludge filter basket. The bottom of the pretreatment chamber is equipped with an outlet that connects to the oil-water separation chamber, and a vertically sliding slide valve is installed at the outlet. The bottom of the solid slag filter basket is equipped with a pressure triggering part, the slide valve is equipped with a triggering part, and the bottom of the pretreatment chamber is equipped with a limit port that matches the triggering part. When the solid slag filter basket is placed in the preset working position of the pretreatment chamber, the downward triggering part presses down on the triggered part. A part of the downward triggering part and the triggered part are within the limit port, driving the slide valve to slide to the open position. When the solid slag filter basket is lifted upward, the downward triggering part and the triggered part separate. The slide valve slides to the closed position under the drive of the spring reset mechanism. The downward triggering part leaves the limit port, and a part of the triggered part is located in the pretreatment chamber.

[0005] Furthermore, the elastic reset mechanism includes a spring, a connecting plate, a support column, and a support plate. The connecting plate is connected to one end of the slide valve and is located at the bottom of the housing. The support column is connected to the bottom of the housing, and the support plate is connected to the support column. The spring is located between the support plate and the connecting plate, with one end of the spring connected to the lower part of the connecting plate and the other end of the spring connected to the upper part of the support plate.

[0006] Furthermore, the upper triggering part is a strip block, the triggered part is a rectangular block, and the side of the strip block that contacts the rectangular block matches the limiting port.

[0007] Furthermore, the box body has side plates on both sides, with through holes on the side plates, and handles on both sides of the top of the solid slag filter basket, with limit posts at the bottom of the handles matching the through holes.

[0008] Furthermore, the connecting plate is slidably connected to the support column.

[0009] The beneficial effects of this utility model are as follows: Ultimate reliability, never jamming: Completely eliminates all easily damaged precision power and transmission components such as motors, lead screws, timing belts, and electric actuators. Employing purely mechanical gravity reset and inclined plane triggering, its stability is unparalleled in oily environments, achieving truly maintenance-free operation.

[0010] Easy maintenance and cleaning: The method of cleaning solid residue has been transformed into a simple step of "lifting the filter basket → emptying and rinsing → putting it back". The filter basket also serves as a waste container. After lifting, the baffle valve automatically closes, isolating the source of dirt. The entire maintenance process does not require contact with the inside of the machine, eliminating any unsanitary corners and greatly reducing labor intensity and secondary environmental pollution.

[0011] Minimalist structure, reduced cost and failure rate: The overall structure is significantly simplified, the number of parts is drastically reduced, and manufacturing costs are significantly lowered. Fewer parts mean fewer points of failure, greatly improving equipment lifespan and overall cost-effectiveness.

[0012] Safe, environmentally friendly, and offering an excellent user experience: The valve automatically closes when the basket is lifted, effectively preventing odors from escaping, insects from entering, and foreign objects from accidentally falling into the core separation chamber, ensuring both safety and hygiene. The operation process is intuitive, requiring no training and providing an excellent user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an oil-water separation device suitable for catering wastewater, according to a specific embodiment of the present invention. Figure 2 This is a top view of an oil-water separation device suitable for catering wastewater, according to a specific embodiment of this utility model; Figure 3 for Figure 2 AA-direction cross-sectional three-dimensional structural diagram; Figure 4 This is a schematic diagram of the structure of an oil-water separation device suitable for catering wastewater, which is a specific embodiment of this utility model.

[0014] Label Explanation: 1. Box body; 11. Pre-treatment chamber; 111. Opening; 112. Outlet; 113. Limiting port; 12. Oil-water separation chamber; 13. Side plate; 131. Through hole; 2. Solid slag filter basket; 21. Filter screen; 22. Downward triggering part; 23. Handle; 231. Limiting post; 3. Slide valve; 31. Triggering part; 4. Elastic reset mechanism; 41. Spring; 42. Connecting plate; 43. Support column; 44. Support plate. Detailed Implementation

[0015] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0016] Please refer to Figures 1 to 4 An oil-water separation device suitable for catering wastewater includes a housing 1, a pretreatment chamber 11 and an oil-water separation chamber 12 inside the housing 1, an opening 111 at the top of the pretreatment chamber 11, a solid sludge filter basket 2 that can be detached inside the pretreatment chamber 11, and a filter screen 21 at the bottom of the solid sludge filter basket 2. The bottom of the pretreatment chamber 11 is provided with an outlet 112 connected to the oil-water separation chamber 12, and a vertically sliding slide valve 3 is provided at the outlet 112. The bottom of the solid slag filter basket 2 is provided with a pressure triggering part 22, the slide valve 3 is provided with a triggering part 31, and the bottom of the pretreatment chamber 11 is provided with a limiting port 113 that matches the triggering part 31. When the solid slag filter basket 2 is placed in the preset working position of the pretreatment chamber 11, the downward triggering part 22 presses down on the triggered part 31. A part of the downward triggering part 22 and the triggered part 31 are within the limiting port 113, driving the slide valve 3 to slide to the open position. When the solid slag filter basket 2 is lifted upward, the downward triggering part 22 separates from the triggered part 31, and the slide valve 3 slides to the closed position under the drive of the spring reset mechanism 4. The downward triggering part 22 leaves the limiting port 113, and a portion of the triggered part 31 is located in the pretreatment chamber 11.

[0017] In the above embodiments, the "separable solid residue filter basket 2" transforms the most difficult and tedious task of cleaning solid residue from "scraping, pushing, and scooping inside the equipment" to "lifting the container and emptying it," achieving clean and isolated maintenance. This fundamentally eliminates unsanitary areas and greatly reduces labor intensity. The solid residue filter basket 2, through the cooperation of the upper trigger part and the triggered part 31, enables the slide valve 3 to open and close automatically. During the maintenance window, it can automatically isolate the lower oil-water separation chamber 12, effectively preventing odor from escaping, insects from entering, and foreign objects from accidentally falling, thus improving the hygiene and safety of the equipment.

[0018] As an optional implementation, the elastic reset mechanism 4 includes a spring 41, a connecting plate 42, a support column 43, and a support plate 44. The connecting plate 42 is connected to one end of the slide valve 3 and is located at the bottom outside the housing 1. The support column 43 is connected to the bottom of the housing 1 and the support plate 44 is connected to the support column 43. The spring 41 is located between the support plate 44 and the connecting plate 42. One end of the spring 41 is connected to the lower part of the connecting plate 42, and the other end of the spring 41 is connected to the upper part of the support plate 44.

[0019] In the above embodiments, the pressing trigger part 22 presses down the triggered part 31, the connecting plate 42 compresses the spring 41, so that a part of the pressing trigger part 22 and the triggered part 31 are in the limiting port 113, the slide valve 3 opens, when the pressing trigger part 22 and the triggered part 31 separate, the spring 41 rebounds, so that the pressing trigger part 22 leaves the limiting port 113, a part of the triggered part 31 is located in the pretreatment chamber 11, and the slide valve 3 closes.

[0020] As an optional implementation, the upper trigger part is a strip block, the triggered part 31 is a rectangular block, and the side of the strip block that contacts the rectangular block matches the limiting port 113.

[0021] In the above embodiments, to prevent liquid from leaking out of the limiting port 113 during the solid-liquid separation process and thus contaminating the box 1, a better approach is to install a sealing ring at the limiting port 113 to further prevent leakage.

[0022] As an optional implementation, the box body 1 has side plates 13 on both sides, and the side plates 13 have through holes 131. The solid slag filter basket 2 has handles 23 on both sides of the top, and the lower part of the handles 23 has a limiting post 231 that matches the through hole 131.

[0023] In the above embodiments, by matching the limiting post 231 with the through hole 131, not only can the strip block and the rectangular block be triggered more accurately, but the stability of the solid slag filter basket 2 in the pretreatment chamber 11 can also be improved.

[0024] As an optional implementation, the connecting plate 42 is slidably connected to the support column 43.

[0025] In the above embodiments, the stability of the slide gate valve 3 in opening and closing is further improved to avoid jamming.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An oil-water separation device suitable for catering wastewater, comprising a tank, wherein a pretreatment chamber and an oil-water separation chamber are provided inside the tank, and the top of the pretreatment chamber has an opening, characterized in that, A solid slag filter basket is detachably placed inside the pretreatment chamber, and a filter screen is installed at the bottom of the solid slag filter basket. The bottom of the pretreatment chamber is equipped with an outlet that connects to the oil-water separation chamber, and a vertically sliding slide valve is installed at the outlet. The bottom of the solid slag filter basket is equipped with a pressure triggering part, the slide valve is equipped with a triggering part, and the bottom of the pretreatment chamber is equipped with a limit port that matches the triggering part. When the solid slag filter basket is placed in the preset working position of the pretreatment chamber, the downward triggering part presses down on the triggered part. A part of the downward triggering part and the triggered part are within the limit port, driving the slide valve to slide to the open position. When the solid slag filter basket is lifted upward, the downward triggering part and the triggered part separate. The slide valve slides to the closed position under the drive of the spring reset mechanism. The downward triggering part leaves the limit port, and a part of the triggered part is located in the pretreatment chamber.

2. The oil-water separation device for catering wastewater according to claim 1, characterized in that, The elastic reset mechanism includes a spring, a connecting plate, a support column, and a support plate. The connecting plate is connected to one end of the slide valve and is located at the bottom of the housing. The support column is connected to the bottom of the housing and the support plate is connected to the support column. The spring is located between the support plate and the connecting plate. One end of the spring is connected to the lower part of the connecting plate, and the other end of the spring is connected to the upper part of the support plate.

3. The oil-water separation device for catering wastewater according to claim 1, characterized in that, The upper trigger part is a strip block, and the triggered part is a rectangular block. The side of the strip block that contacts the rectangular block matches the limiting port.

4. The oil-water separation device for catering wastewater according to claim 1, characterized in that, The box body has side plates on both sides, and through holes on the side plates. The top of the solid slag filter basket has handles on both sides, and the lower part of the handles has a limiting post that matches the through hole.

5. The oil-water separation device for catering wastewater according to claim 2, characterized in that, The connecting plate is slidably connected to the support column.

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