Oil-water separation device for kitchen waste sewage treatment

Abstract

The utility model discloses an oil-water separating device for kitchen waste sewage treatment, which comprises a separating machine barrel, an oily water inlet pipe and a chemical reagent inlet pipe are arranged on the surface of the upper end of the separating machine barrel, and an ultrafiltration machine barrel and a bubble generator are arranged in the separating machine barrel. An oily water inlet pipe and a chemical reagent inlet pipe are both in sealed connection with the interior of the ultrafiltration machine barrel, a washer is installed on the side surface of the separation machine barrel, a sewage discharge pipe is installed at the bottom end of the separation machine barrel, a filter is installed in the sewage discharge pipe, a filter valve is installed at the upper end of the filter, and a water outlet pipe is installed at the lower end of the filter valve. And the interior of the filter is hermetically connected with a washer through a washing pipeline. According to the kitchen waste sewage treatment device, kitchen waste sewage is recycled, chemical reagents (such as ferric trichloride and basic aluminum oxide) are added, so that oil particles or colloidal oil particles in an oil-water mixture are subjected to chemical reaction and coagulated into a flocculent or stable mixture, and then oil and water can be thoroughly separated through the concentration and purification effect of the ultrafiltration membrane; the purpose of oil-water classified discharge is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen waste sewage treatment, in particular to an oil-water separation device for kitchen waste sewage treatment. Background Art

[0002] Kitchen waste water will contain certain oil substances, especially vegetable oil. If kitchen waste water is used directly to water green plants, it will be detrimental to the breathing and heat dissipation of the roots of the green plants, and it is easy to cause root rot. If kitchen waste water is only used to flush the toilet, it will cause a certain waste of water resources. At the same time, if you use soilless cultivation technology to grow green plants at home, using kitchen waste water as water for soilless cultivation can not only save water, but also provide some nutrients for green plants, thereby saving some of the cost of purchasing nutrients.

[0003] The Chinese authorized patent document with publication number CN214399900U discloses an oil-water separation device for kitchen waste water, including a separation box and an oil-water separator, the oil-water separator including a lower conical tube, a straight tube and an upper conical tube; an inlet pipe is installed on the side wall of the separation box and the outlet end of the inlet pipe is arranged in the straight tube, the lower end of the straight tube is coaxially connected with the constricted end of the lower conical tube and arranged in the separation box, the upper end of the straight tube is coaxially connected with the constricted end of the upper conical tube and arranged outside the separation box, and a water outlet pipe is arranged on the bottom of the separation box; an oil-water discharge pipe is arranged on the side wall of the upper conical tube. The utility model realizes the separation of oil and water in kitchen waste water, reduces the content of oil substances in kitchen waste water, and enables the treated kitchen waste water to be used for green plant irrigation and soilless cultivation.

[0004] The above-mentioned oil-water separation device for treating kitchen wastewater in the prior art cannot efficiently and thoroughly separate oil and water, resulting in residual oil stains in the wastewater. Therefore, it is necessary to develop a new type of oil-water separation device for treating kitchen wastewater. Utility Model Content

[0005] The purpose of the utility model is to provide an oil-water separation device for treating kitchen wastewater, so as to solve the problem that the oil-water separation device for treating kitchen wastewater in the prior art proposed in the above background technology cannot efficiently and thoroughly separate oil and water, resulting in residual oil stains in the wastewater.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil-water separation device for treating kitchen wastewater, comprising a separation barrel, an oily wastewater inlet pipe and a chemical reagent inlet pipe are respectively installed on the upper end surface of the separation barrel, an ultrafiltration barrel and a bubble generator are respectively installed inside the separation barrel, the oily wastewater inlet pipe and the chemical reagent inlet pipe are both sealed and connected to the inside of the ultrafiltration barrel, the ultrafiltration barrel and the bubble generator are both detachable structures from the separation barrel, a scrubber is installed on the side surface of the separation barrel, a sewage drain pipe is installed at the bottom end of the separation barrel, a filter is installed inside the sewage drain pipe, a filter valve is installed on the upper end of the filter, and the inside of the filter is sealed and connected to the scrubber through a washing pipeline.

[0007] Based on the above, a sewage inlet valve is installed on the oily sewage inlet pipe, and a switch control valve is installed on the chemical reagent inlet pipe.

[0008] Based on the above, an ultrafiltration membrane is installed inside the ultrafiltration barrel, and the lower end of the ultrafiltration barrel is sealed and connected to a sealing joint arranged inside the separation barrel through a threaded pipe.

[0009] Based on the above, a flow meter is installed on the side surface of the separation barrel, and one end of the flow meter is connected to the inside of the sewage discharge pipe through the first flow measuring pipeline.

[0010] Based on the above, the other end of the flow meter is connected to the interior of the separation barrel through the second flow measuring pipeline.

[0011] Based on the above, an oil drain pipe and an oil collector are respectively installed on the other side surface of the separation barrel, and the oil collector and the oil drain pipe are connected by a pipeline seal.

[0012] Based on the above, a sealing cover plate is provided at the upper end of the separation barrel, and the side surface of the sealing cover plate is sealed and connected to the separation barrel through a locking mechanism. A supporting frame is installed at the bottom end of the separation barrel, and the supporting frame and the separation barrel are fixedly connected by welding.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model recycles kitchen wastewater and adds chemical reagents (such as ferric chloride and basic alumina) into the separator barrel to cause oil particles or colloidal oil particles in the oil-water mixture to undergo a chemical reaction and condense into a flocculent or stable mixture. Then, through the concentration and purification effect of the ultrafiltration membrane, the oil and water can be completely separated to achieve the purpose of classified discharge of oil and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2It is a side structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal installation structure of the separator barrel of the utility model.

[0018] In the figure: 1. Chemical reagent inlet pipe; 2. Switch control valve; 3. Oily and sewage inlet pipe; 4. Sewage inlet valve; 5. Sealing cover plate; 6. Separation barrel; 7. Flow meter; 8. Oil and sewage discharge pipe; 9. First flow measuring pipeline; 10. Second flow measuring pipeline; 11. Support frame; 12. Sewage discharge pipe; 13. Filter; 14. Scrubber; 15. Washing pipeline; 16. Filter valve; 17. Oil collector; 18. Bubble generator; 19. Ultrafiltration barrel; 20. Threaded pipe; 21. Sealing joint. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-3 The utility model provides an embodiment: an oil-water separation device for kitchen waste water treatment, comprising a separation barrel 6, an oily wastewater inlet pipe 3 and a chemical reagent inlet pipe 1 are respectively installed on the upper end surface of the separation barrel 6, an ultrafiltration barrel 19 and a bubble generator 18 are respectively installed inside the separation barrel 6, the oily wastewater inlet pipe 3 and the chemical reagent inlet pipe 1 are both sealed and connected to the inside of the ultrafiltration barrel 19, the ultrafiltration barrel 19 and the bubble generator 18 are both detachable structures from the separation barrel 6, a scrubber 14 is installed on the side surface of the separation barrel 6, a sewage discharge pipe 12 is installed at the bottom end of the separation barrel 6, a filter 13 is installed inside the sewage discharge pipe 12, a filter valve 16 is installed on the upper end of the filter 13, and the inside of the filter 13 is sealed and connected to the scrubber 14 through a washing pipeline 15.

[0021] Furthermore, a sewage inlet valve 4 is installed on the oily sewage inlet pipe 3, and the sewage inlet valve 4 is convenient for controlling the internal liquid circulation of the oily sewage inlet pipe 3. A switch control valve 2 is installed on the chemical reagent inlet pipe 1, and the switch control valve 2 is used to control the internal liquid circulation of the chemical reagent inlet pipe 1. An ultrafiltration membrane is installed inside the ultrafiltration barrel 19, and the ultrafiltration membrane is used to filter and remove the flocculent or stable mixture condensed after the chemical reaction. The lower end of the ultrafiltration barrel 19 is sealed and connected to the sealing joint 21 arranged inside the separation barrel 6 through a threaded pipe 20, which has the advantages of convenient assembly and disassembly and tight and stable connection.

[0022] Furthermore, a flow meter 7 is installed on the side surface of the separation barrel 6, and one end of the flow meter 7 is connected to the inside of the sewage drain pipe 12 through a first flow measuring pipeline 9, so as to monitor the liquid flow inside the sewage drain pipe 12, and the other end of the flow meter 7 is connected to the inside of the separation barrel 6 through a second flow measuring pipeline 10, so as to monitor the liquid flow inside the separation barrel 6, and an oil drain pipe 8 and an oil collector 17 are respectively installed on the other side surface of the separation barrel 6, and the oil collector 17 is sealed with the oil drain pipe 8 through a pipeline, and the oil is collected in the oil collector 17 and then discharged uniformly through the oil drain pipe 8, and a sealing cover plate 5 is provided at the upper end of the separation barrel 6, and the side surface of the sealing cover plate 5 is sealed with the separation barrel 6 through a locking mechanism, and a supporting frame 11 is installed at the bottom end of the separation barrel 6, and the supporting frame 11 and the separation barrel 6 are fixedly connected by welding.

[0023] Working principle: When in use, the upper end surface of the separation barrel 6 is respectively installed with an oily sewage inlet pipe 3 and a chemical reagent inlet pipe 1, and a sewage inlet valve 4 is installed on the oily sewage inlet pipe 3. The sewage inlet valve 4 is opened, and the external kitchen sewage is collected into the separation barrel 6 through the oily sewage inlet pipe 3. The chemical reagent inlet pipe 1 is installed with a switch control valve 2. After opening the switch control valve 2, the chemical reagent solution (such as ferric chloride, basic alumina solution) required for the reaction is introduced into the separation barrel 6 through the chemical reagent inlet pipe 1, and then the chemical reagent is used to perform relevant chemical reactions with the oil, so that the oil particles or colloidal oil particles in the oil-water mixture react chemically and condense into flocculent or stable mixtures. After the reaction, the mixed solution with solid impurities of the mixture enters the ultrafiltration barrel 19, and an ultrafiltration membrane is installed inside the ultrafiltration barrel 19. The ultrafiltration membrane is used to filter and remove the flocculent or stable mixtures condensed after the chemical reaction, so that the oil and water can be completely separated to achieve the purpose of classified discharge of oil and water. Finally, the filtered sewage flows out from the sewage pipe.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art. In addition, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description is given here.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation device for treating kitchen waste water, comprising a separation barrel (6), characterized in that: The upper end surface of the separation barrel (6) is respectively provided with an oily wastewater inlet pipe (3) and a chemical reagent inlet pipe (1); an ultrafiltration barrel (19) and a bubble generator (18) are respectively provided inside the separation barrel (6); the oily wastewater inlet pipe (3) and the chemical reagent inlet pipe (1) are both sealedly connected to the inside of the ultrafiltration barrel (19); the ultrafiltration barrel (19) and the bubble generator (18) are both detachable structures from the separation barrel (6); a scrubber (14) is provided on the side surface of the separation barrel (6); a sewage discharge pipe (12) is provided at the bottom end of the separation barrel (6); a filter (13) is provided inside the sewage discharge pipe (12); a filter valve (16) is provided at the upper end of the filter (13); and the inside of the filter (13) is sealedly connected to the scrubber (14) via a washing pipeline (15).

2. The oil-water separation device for treating kitchen waste water according to claim 1, characterized in that: The oily wastewater inlet pipe (3) is provided with a wastewater inlet valve (4), and the chemical reagent inlet pipe (1) is provided with a switch control valve (2).

3. The oil-water separation device for treating kitchen waste water according to claim 1, characterized in that: An ultrafiltration membrane is installed inside the ultrafiltration barrel (19), and the lower end of the ultrafiltration barrel (19) is sealedly connected to a sealing joint (21) arranged inside the separation barrel (6) through a threaded pipe (20).

4. The oil-water separation device for treating kitchen waste water according to claim 1, characterized in that: A flow meter (7) is installed on the side surface of the separation barrel (6), and one end of the flow meter (7) is connected to the inside of the sewage discharge pipe (12) through a first flow measuring pipeline (9).

5. The oil-water separation device for treating kitchen waste water according to claim 4, characterized in that: The other end of the flow meter (7) is connected to the interior of the separation barrel (6) via a second flow measuring pipeline (10).

6. The oil-water separation device for treating kitchen waste water according to claim 1, characterized in that: An oil discharge pipe (8) and an oil collector (17) are respectively installed on the other side surface of the separator barrel (6), and the oil collector (17) and the oil discharge pipe (8) are connected via a pipeline seal.

7. The oil-water separation device for treating kitchen waste water according to claim 1, characterized in that: A sealing cover plate (5) is provided at the upper end of the separation barrel (6), and the side surface of the sealing cover plate (5) is sealed and connected to the separation barrel (6) through a locking mechanism. A supporting frame (11) is installed at the bottom end of the separation barrel (6), and the supporting frame (11) and the separation barrel (6) are fixedly connected by welding.

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