Commercial easy-to-clean large-capacity kitchen wastewater treatment equipment

Abstract

The invention relates to the technical field of kitchen wastewater treatment, and provides commercial easy-to-clean large-capacity kitchen wastewater treatment equipment which comprises a wastewater collection tank, an oil-water separation device and a wastewater purification device. The equipment integrally has the characteristics of high treatment efficiency, reasonable resource recycling, convenience in maintenance, strong environmental protection property and the like, can well meet the requirements of commercial kitchen wastewater treatment, has important significance in the aspects of reducing the pollution of kitchen wastewater to the environment, saving resources and the like, and has a wide application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen wastewater treatment, and in particular to commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment. Background Art

[0002] In commercial kitchens, a large amount of wastewater is generated. These wastewaters usually contain large solid impurities, grease, organic matter, bacteria and other pollutants. If they are not effectively treated and discharged directly, they will cause serious pollution to the environment. Traditional kitchen wastewater treatment methods and equipment have many problems.

[0003] The filter devices of some wastewater treatment equipment are easily clogged by large solid impurities and difficult to clean, resulting in high equipment maintenance costs and affecting normal operation. In terms of oil-water separation, the separation effect of traditional equipment is not ideal, the oil droplet agglomeration effect is poor, and the oil-water separation efficiency is low, so that the grease in the wastewater cannot be effectively removed, which not only affects the subsequent treatment effect, but also may cause waste of resources.

[0004] In addition, the purification effect of traditional wastewater purification equipment is limited, the removal of organic matter is not thorough enough, and the disinfection measures are not perfect, resulting in the treated wastewater being difficult to meet the discharge standards. At the same time, in terms of water quality monitoring, there is a lack of real-time detection of multiple parameters, and it is impossible to accurately determine whether the wastewater meets the discharge standards, which poses a risk of environmental pollution.

[0005] Therefore, this invention proposes a commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment to solve the above problems. Summary of the invention

[0006] In order to overcome the defects of the prior art, the object of the present invention is to provide a commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment.

[0007] To achieve the above object, the technical solution of the present invention is implemented as follows: a commercial, easy-to-clean, large-capacity kitchen wastewater treatment device, comprising: A wastewater collection box, wherein a water inlet is provided at the top of the wastewater collection box for receiving kitchen wastewater, a first drain outlet is provided at the bottom of the wastewater collection box, and a first filter screen is provided inside the wastewater collection box. The first filter screen is tilted, and the lower end is close to the first drain outlet. The first filter screen is used for preliminarily filtering large solid impurities in the wastewater; An oil-water separation device, whose water inlet end is connected to the first drain port through a pipeline, comprises a separation box, in which a coalescing filter element and a second filter screen are arranged, the coalescing filter element is used to coalesce the oil droplets and make them larger, the second filter screen is located below the coalescing filter element and is used to prevent the coalesced oil droplets from flowing downward, an oil outlet is arranged at the top of the separation box, and a second drain port is arranged at the bottom; A wastewater purification device, wherein the water inlet end is connected to the second drain outlet through a pipeline, and the wastewater purification device comprises a purification box, wherein a plurality of activated carbon adsorption layers and a biological filter material layer are arranged in the purification box, wherein the activated carbon adsorption layer is used to adsorb organic matter and odor in the wastewater, and the biological filter material layer is used to further decompose organic matter in the wastewater; Among them, the outer shells of the wastewater collection box, the oil-water separation device and the wastewater purification device are all made of stainless steel, and valves are provided on the connecting pipes of the wastewater collection box, the oil-water separation device and the wastewater purification device.

[0008] Preferably, an openable and closable cleaning door is provided on the side of the wastewater collection box, and a sealing rubber strip is provided on the edge of the cleaning door. The area of ​​the cleaning door is not less than the projected area of ​​the first filter screen to facilitate cleaning of the first filter screen.

[0009] Preferably, the coalescing filter element is a multi-layer fiber structure, and the diameter of each layer of fibers gradually decreases from the outside to the inside.

[0010] Preferably, a heating device is provided in the separation box, and the heating device is located below the coalescing filter element, which is used to improve the oil-water separation efficiency. The heating device adopts electromagnetic induction heating technology. By setting an electromagnetic induction coil at the bottom of the separation box, the wastewater in the separation box generates eddy current heating, thereby improving the oil-water separation efficiency.

[0011] Preferably, a stirring device is provided in the purification box, and the stirring device includes a stirring shaft and a stirring blade. The stirring shaft passes through the activated carbon adsorption layer and the biological filter material layer. The stirring blade is located in the biological filter material layer and is used to stir the biological filter material in the biological filter material layer to improve the decomposition efficiency of organic matter. The stirring shaft is a hollow structure with an aeration pipe provided inside. The aeration pipe is provided with multiple aeration heads. The aeration head is located in the biological filter material layer. By introducing air into the biological filter material layer, the dissolved oxygen content in the wastewater is increased, the activity of the biological filter material is improved, and the decomposition efficiency of organic matter is further improved.

[0012] Preferably, the wastewater purification device also includes a disinfection unit, which is located below the biological filter material layer. The disinfection unit is an ultraviolet disinfection lamp, which uses an ultraviolet lamp tube with a wavelength of 254nm, and a quartz sleeve is provided on the outside of the lamp tube of the ultraviolet disinfection lamp to improve the transmittance of ultraviolet rays and enhance the disinfection effect.

[0013] Preferably, a liquid level sensor is provided in the wastewater collection box, and the liquid level sensor is electrically connected to the valve. When the liquid level sensor detects that the water level in the wastewater collection box reaches a set height, the valve automatically opens to allow the wastewater to flow into the oil-water separation device. The liquid level sensor adopts a static pressure liquid level sensor, which determines the liquid level height by measuring the pressure of the wastewater on the sensor probe, and has the advantages of high measurement accuracy and good stability.

[0014] Preferably, the oil outlet of the oil-water separation device is connected to an oil storage barrel through a pipeline. The oil storage barrel is provided with an oil level observation window. The oil storage barrel is provided with an oil quality detection sensor for detecting the quality of the oil in the oil storage barrel. When the oil quality reaches a certain standard, it can be recycled.

[0015] Preferably, a third drain outlet is provided at the bottom of the wastewater purification device, the third drain outlet is connected to a drain pipe, and a water quality detection sensor is provided on the drain pipe. When the water quality detection sensor detects that the water quality reaches the discharge standard, the wastewater is allowed to be discharged. The water quality detection sensor adopts a multi-parameter water quality detector, which can simultaneously detect multiple indicators in the wastewater, such as COD, BOD, SS, NH3-N, etc., to ensure that the wastewater discharge meets environmental protection requirements.

[0016] The beneficial effects of the present invention are embodied in: This commercial easy-to-clean large-capacity kitchen wastewater treatment equipment has many significant advantages. In the wastewater collection tank part, its structural design not only ensures the effective filtration of large particle impurities, but also facilitates the cleaning of the filter screen. At the same time, precise liquid level control ensures the stable transfer of wastewater. The oil-water separation device achieves efficient oil-water separation through a special coalescing filter element, filter screen and heating device, and the setting of the oil storage barrel facilitates oil quality management and resource recovery. The wastewater purification device purifies wastewater in an all-round way. The combination of the activated carbon adsorption layer and the biological filter material layer, the stirring device to enhance the activity of the biological filter material, as well as reliable disinfection and strict water quality monitoring, jointly ensure that the wastewater can meet the discharge standards after treatment. This equipment has the characteristics of high treatment efficiency, reasonable resource recycling, convenient maintenance, and strong environmental protection. It can well meet the needs of commercial kitchen wastewater treatment, and is of great significance in reducing the pollution of kitchen wastewater to the environment and saving resources. It has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a half-cut structure schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the wastewater collection box of the present invention; Figure 4 It is a schematic diagram of the internal structure of the oil-water separation device of the present invention; Figure 5 It is a schematic diagram of the internal structure of the wastewater purification device of the present invention; Figure 6 It is a schematic diagram of the half-cut structure of the stirring device of the present invention; Description of reference numerals: 1. Wastewater collection box; 2. Oil-water separation device; 3. Wastewater purification device; 4. Valve; 5. Oil storage barrel; 6. Drain pipe; 11. Water inlet; 12. First drain outlet; 13. First filter screen; 14. Cleaning door; 15. Sealing rubber strip; 16. Liquid level sensor; 21. Separation box; 22. Coalescing filter element; 23. Second filter screen; 24. Oil outlet; 25. Second drain outlet; 26. Heating device; 31. Purification box; 32. Activated carbon adsorption layer; 33. Biological filter material layer; 34. Stirring device; 35. Disinfection unit; 36. Third drain outlet; 341. stirring shaft; 342. stirring blade; 343. aeration pipe; 344. aeration head; 51. Oil level observation window; 52. Oil quality detection sensor. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0019] It should be noted that if the embodiments of the invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the invention.

[0021] Please refer to the instruction manual Figure 1-Figure 6 , the present invention provides a commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment: 1. Wastewater collection tank Structure and function The wastewater collection box 1 is made of stainless steel material, and the water inlet 11 at the top continuously receives kitchen wastewater. A first filter screen 13 is arranged obliquely inside the box, and the lower end of the filter screen is close to the first drain port 12 at the bottom. Large particles of solid impurities are initially filtered and intercepted when the wastewater flows through the first filter screen 13.

[0022] A cleaning door 14 is provided on the side of the wastewater collection box 1. A sealing rubber strip 15 on the edge of the cleaning door 14 ensures the sealing when closed. Since the area of ​​the cleaning door 14 is not less than the projected area of ​​the first filter screen 13, when the first filter screen 13 needs to be cleaned, the cleaning door 14 can be conveniently opened for operation.

[0023] The liquid level sensor 16 is installed in the wastewater collection tank 1. It adopts a static pressure liquid level sensor to accurately determine the liquid level height by measuring the pressure of the wastewater on the sensor probe. When the liquid level reaches the set height, since the liquid level sensor 16 is electrically connected to the valve 4 on the connecting pipe, the valve 4 automatically opens to allow the wastewater to flow into the oil-water separation device 2.

[0024] 2. Oil-water separation device Structure and function The water inlet of the oil-water separator 2 is connected to the first drain port 12 of the wastewater collection box 1 through a pipeline, and its outer shell is made of stainless steel. A coalescing filter element 22 with a multi-layer fiber structure is arranged inside the separation box 21, and the diameter of each layer of fiber gradually decreases from the outside to the inside. This structure helps the oil droplets to coalesce and grow larger.

[0025] A second filter screen 23 is provided below the coalescing filter element 22 , and the coalesced oil droplets are prevented from flowing downward by the second filter screen 23 .

[0026] A heating device 26 is also provided in the separation box 21, which is located below the coalescing filter element 22. The electromagnetic induction heating technology is adopted to set an electromagnetic induction coil at the bottom of the separation box 21 to generate eddy current and heat in the wastewater in the separation box 21, thereby improving the oil-water separation efficiency.

[0027] The oil outlet 24 at the top of the separation box 21 is connected to the oil storage barrel 5 through a pipeline. The oil level observation window 51 on the oil storage barrel 5 is convenient for observing the oil level. The oil quality detection sensor 52 in the oil storage barrel 5 can detect the quality of the oil. When the oil quality reaches a certain standard, the oil can be recycled. The second drain port 25 at the bottom of the separation box 21 is connected to the wastewater purification device 3 through a pipeline.

[0028] 3. Wastewater purification device Structure and function The water inlet of the wastewater purification device 3 is connected to the second drain port 25 of the oil-water separation device 2 through a pipeline, and its outer shell is made of stainless steel. A plurality of activated carbon adsorption layers 32 and a biological filter material layer 33 are arranged in the purification box 31. The activated carbon adsorption layer 32 is used to adsorb organic matter and odor in the wastewater, and the biological filter material layer 33 is used to further decompose organic matter in the wastewater.

[0029] The stirring device 34 in the purification box 31 includes a stirring shaft 341 and a stirring blade 342. The stirring shaft 341 penetrates the activated carbon adsorption layer 32 and the biological filter material layer 33. The stirring blade 342 is located in the biological filter material layer 33 and is used to stir the biological filter material in the biological filter material layer 33 to improve the decomposition efficiency of organic matter. The stirring shaft 341 is a hollow structure, and a plurality of aeration heads 344 are provided on the internal aeration pipe 343. The aeration head 344 is located in the biological filter material layer 33. By introducing air into the biological filter material layer 33, the dissolved oxygen content in the wastewater is increased, the activity of the biological filter material is increased, and the decomposition efficiency of organic matter is further improved.

[0030] A disinfection unit 35 is also provided in the purification box 31 and is located below the biological filter material layer 33. The disinfection unit 35 is an ultraviolet disinfection lamp, which uses an ultraviolet lamp tube with a wavelength of 254nm, and a quartz sleeve is provided outside the lamp tube to improve the transmittance of ultraviolet rays and enhance the disinfection effect.

[0031] A third drain port 36 is provided at the bottom of the purification box 31 and is connected to the drain pipe 6. The water quality detection sensor 61 on the drain pipe 6 adopts a multi-parameter water quality detector, which can simultaneously detect multiple indicators such as COD, BOD, SS, NH3-N, etc. in the wastewater. Only when the water quality detection sensor 61 detects that the water quality meets the discharge standard, the wastewater is allowed to be discharged.

[0032] How it works Kitchen waste water enters the waste water collection box 1 through the water inlet 11 at the top of the waste water collection box 1.

[0033] The liquid level sensor 16 in the wastewater collection tank 1 continuously monitors the liquid level height and determines the liquid level by measuring the pressure of the wastewater on the sensor probe.

[0034] When the liquid level reaches a set height, the liquid level sensor 16 sends a signal and the valve 4 electrically connected thereto automatically opens.

[0035] After opening the valve 4, the wastewater flows out from the first drain port 12 at the bottom of the wastewater collection box 1. When in the wastewater collection box 1, the wastewater passes through the first filter screen 13 which is set obliquely. Large particles of solid impurities are initially filtered and intercepted by the first filter screen 13. The wastewater after initial filtration flows to the oil-water separation device 2.

[0036] The wastewater enters the separation box 21 of the oil-water separation device 2.

[0037] The coalescing filter element 22 in the separation box 21 causes the oil droplets to coalesce and become larger.

[0038] The coalesced oil droplets are prevented from flowing downward by the second filter screen 23 located below the coalescing filter element 22 .

[0039] At the same time, the heating device 26 located below the coalescing filter element 22 in the separation box 21 improves the oil-water separation efficiency.

[0040] The separated oil is pumped into the oil storage barrel 5 through a pipeline from the oil outlet 24 at the top of the separation box 21. The oil quality detection sensor 52 in the oil storage barrel 5 can detect the quality of the oil. The oil level observation window 51 is convenient for observing the oil level. When the oil quality reaches a certain standard, it can be recycled; and the separated water flows from the second drain port 25 at the bottom of the separation box 21 to the wastewater purification device 3.

[0041] The wastewater enters the purification tank 31 of the wastewater purification device 3 .

[0042] First, the wastewater passes through a multi-layer activated carbon adsorption layer 32 to adsorb organic matter and odor in the wastewater.

[0043] Then it enters the biological filter material layer 33, and the stirring device 34 in the purification box 31 starts to work. The stirring shaft 341 drives the stirring blades 342 to stir the biological filter material in the biological filter material layer 33; at the same time, the aeration head 344 on the aeration pipe 343 in the hollow structure of the stirring shaft 341 introduces air into the biological filter material layer 33.

[0044] The wastewater treated by the biological filter material layer 33 continues to flow downward and passes through the disinfection unit 35 located below the biological filter material layer 33 for disinfection treatment.

[0045] The purified and disinfected wastewater reaches the third drain port 36 at the bottom of the purification box 31 and is discharged to the outside through the drain pipe 6 .

[0046] The water quality detection sensor 61 on the drain pipe 6 detects the waste water.

[0047] Only when the water quality detection sensor 61 detects that the water quality reaches the discharge standard, the waste water is allowed to be discharged.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment, characterized in that: include: A wastewater collection box (1), wherein a water inlet (11) is provided at the top of the wastewater collection box (1) for receiving kitchen wastewater, a first drain outlet (12) is provided at the bottom of the wastewater collection box (1), a first filter screen (13) is provided inside the wastewater collection box (1), the first filter screen (13) is arranged at an angle, and the lower end thereof is close to the first drain outlet (12), and the first filter screen (13) is used for preliminarily filtering large solid impurities in the wastewater; An oil-water separation device (2), wherein a water inlet end is connected to the first drain port (12) via a pipeline, the oil-water separation device (2) comprising a separation box (21), wherein a coalescing filter element (22) and a second filter screen (23) are provided in the separation box (21), wherein the coalescing filter element (22) is used to coalesce oil droplets to make them larger, and the second filter screen (23) is located below the coalescing filter element (22) and is used to prevent coalesced oil droplets from flowing downwards, and wherein an oil outlet (24) is provided at the top of the separation box (21) and a second drain port (25) is provided at the bottom; A wastewater purification device (3), wherein the water inlet end is connected to the second drain port (25) via a pipeline, the wastewater purification device (3) comprising a purification box (31), wherein a plurality of activated carbon adsorption layers (32) and a biological filter material layer (33) are arranged in the purification box (31), wherein the activated carbon adsorption layer (32) is used to adsorb organic matter and odor in the wastewater, and the biological filter material layer (33) is used to further decompose organic matter in the wastewater; The outer shells of the wastewater collection box (1), the oil-water separation device (2) and the wastewater purification device (3) are all made of stainless steel, and valves (4) are provided on the connecting pipes of the wastewater collection box (1), the oil-water separation device (2) and the wastewater purification device (3).

2. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: The wastewater collection box (1) is provided with an openable cleaning door (14) on the side thereof, and a sealing rubber strip (15) is provided on the edge of the cleaning door (14). The area of ​​the cleaning door (14) is not less than the projected area of ​​the first filter screen (13), so as to facilitate cleaning of the first filter screen (13).

3. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: The coalescing filter element (22) is a multi-layer fiber structure, and the diameter of each fiber layer gradually decreases from the outside to the inside.

4. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: A heating device (26) is provided in the separation box (21). The heating device (26) is located below the coalescing filter element (22) and is used to improve the oil-water separation efficiency. The heating device (26) adopts electromagnetic induction heating technology. An electromagnetic induction coil is provided at the bottom of the separation box (21), so that the wastewater in the separation box (21) generates eddy currents and heats, thereby improving the oil-water separation efficiency.

5. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: The purification box (31) is provided with a stirring device (34), the stirring device (34) comprising a stirring shaft (341) and a stirring blade (342), the stirring shaft (341) passing through the activated carbon adsorption layer (32) and the biological filter material layer (33), the stirring blade (342) being located in the biological filter material layer (33) and being used to stir the biological filter material in the biological filter material layer (33) to improve the decomposition efficiency of organic matter, the stirring shaft (341) being a hollow structure, having an aeration pipe (343) disposed therein, the aeration pipe (343) being provided with a plurality of aeration heads (344), the aeration heads (344) being located in the biological filter material layer (33), and increasing the dissolved oxygen content in the wastewater by introducing air into the biological filter material layer (33), thereby improving the activity of the biological filter material and further improving the decomposition efficiency of organic matter.

6. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: The wastewater purification device (3) further comprises a disinfection unit (35), the disinfection unit (35) being located below the biological filter material layer (33), the disinfection unit (35) being an ultraviolet disinfection lamp, the ultraviolet disinfection lamp using an ultraviolet lamp tube with a wavelength of 254 nm, and a quartz sleeve being provided outside the lamp tube of the ultraviolet disinfection lamp to increase the transmittance of ultraviolet rays and enhance the disinfection effect.

7. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: A liquid level sensor (16) is provided in the wastewater collection box (1). The liquid level sensor (16) is electrically connected to the valve (4). When the liquid level sensor (16) detects that the water level in the wastewater collection box (1) reaches a set height, the valve (4) automatically opens to allow wastewater to flow into the oil-water separation device (2). The liquid level sensor (16) is a static pressure liquid level sensor. The liquid level height is determined by measuring the pressure of the wastewater on the sensor probe. The liquid level sensor has the advantages of high measurement accuracy and good stability.

8. The commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: The oil outlet (24) of the oil-water separation device (2) is connected to an oil storage barrel (5) via a pipeline. The oil storage barrel (5) is provided with an oil level observation window (51). The oil storage barrel (5) is provided with an oil quality detection sensor (52) for detecting the quality of the oil in the oil storage barrel (5). When the oil quality reaches a certain standard, the oil can be recycled.

9. A commercial, easy-to-clean, large-capacity kitchen wastewater treatment equipment according to claim 1, characterized in that: A third drain port (36) is provided at the bottom of the wastewater purification device (3). The third drain port (36) is connected to a drain pipe (6). A water quality detection sensor (61) is provided on the drain pipe (6). When the water quality detection sensor (61) detects that the water quality reaches the discharge standard, the wastewater is allowed to be discharged. The water quality detection sensor (61) adopts a multi-parameter water quality detector, which can simultaneously detect multiple indicators such as COD, BOD, SS, NH3-N, etc. in the wastewater, so as to ensure that the wastewater discharge meets environmental protection requirements.

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