CN211644833U - Restaurant wastewater oil-water separation device - Google Patents

Abstract

The utility model provides a food and beverage waste water oil water separator, relates to oil water separator, especially uses the processing of the high food and beverage waste water of greasy dirt content, including the inlet tube, trapezoidal box, the pressurization dissolves gas device, the diffuser plate, the outlet pipe, the exit end of inlet tube passes trapezoidal box lateral wall and inserts it inside, divide into the processing unit of three water intercommunication in proper order around by two perpendicular baffles in the trapezoidal box, first processing unit and second processing unit bottom installation diffuser plate, dissolve the gas device through pipeline and outside pressurization and be connected, it has the delivery port to connect the outlet pipe to open on the terminal lateral wall of third processing unit. Has the characteristics of low cost, quick oil-water separation, land occupation saving and the like.

Description

Restaurant wastewater oil-water separation device

Technical Field

The utility model relates to an oil-water separation device, in particular to the treatment of restaurant wastewater with high oil stain content.

Background

In recent years, with the rapid development of the catering industry, the production amount of restaurant wastewater also shows a rapid increase trend. Restaurant wastewater is an organic pollutant with complex components, wherein if the oily wastewater is not effectively treated, urban pipe networks are blocked to generate stink, and the working efficiency of subsequent treatment equipment and facilities is reduced. How to utilize effective prepositive measures to treat wastewater in the catering industry to ensure that the wastewater is effectively subjected to oil-water separation before entering treatment facilities or a receiving pipe network is a hot point of research in the field of catering wastewater treatment in recent ten years in China.

The prior patent (application number: CN 201010284509.5) discloses an oil-water separator, which comprises a case, wherein the upper part is a filter cavity, and the lower part is a separation cavity; the separation cavity is internally provided with a combined tank consisting of an oil storage tank, a mixing tank and a water storage tank, a connecting pipeline and a valve. The method has the characteristics of high separation efficiency, thorough oil-water separation, no need of loading and transporting hogwash, no need of chemical agents, no secondary pollution, no need of energy sources, low cost and convenient use. The hogwash produced by catering industry can be treated on site, and one device can realize solid-liquid separation and oil-water separation at the same time. However, the device mainly separates the oily wastewater by the principle of gravity separation, and has poor effect on removing part of oily particles suspended in water.

Disclosure of Invention

The utility model discloses just in order to overcome above-mentioned not enough, provide a food and beverage waste water oil-water separator, utilize the mode that air supporting and gravity separation combined together to carry out water oil separating to food and beverage waste water to realize water oil separating thoroughly, the effect that waste water can discharge to reach standard can reduce food and beverage enterprise's treatment cost.

The method is implemented specifically as follows: a restaurant wastewater oil-water separation device comprises a water inlet pipe, a trapezoidal box body, a pressurizing and gas dissolving device, a diffusion plate and a water outlet pipe, wherein the outlet end of the water inlet pipe penetrates through the side wall of the trapezoidal box body to be connected into the trapezoidal box body, the vertical section of the trapezoidal box body in the advancing direction of oil-water plug flow is in a right-angled trapezoid shape, the lower side of the trapezoidal box body is a trapezoidal oblique edge, the upper side of the trapezoidal box body is a horizontal right-angled edge, the two side edges of the trapezoidal box body are sequentially a long bottom edge and a short top edge in the advancing direction of oil-water plug flow, the trapezoidal box body is divided into three treatment units which are sequentially communicated with water from front to back; the side wall of the tail end of the third processing unit is provided with a water outlet connected with a water outlet pipe.

Restaurant wastewater enters the trapezoidal box body through the water inlet pipe, sequentially passes through the first treatment unit and the second treatment unit, is respectively discharged into the diffusion plates of the two treatment units through the pressurizing and containing device, is diffused into the wastewater to be subjected to air floatation treatment, and is finally discharged after being treated by the third treatment unit according to the gravity separation principle.

Furthermore, a T-shaped three-way pipe horizontally arranged is arranged on the upper portions of two vertical partition plates of the trapezoidal box body, two ends of each vertical branch pipe are communicated with the processing units, one end of each horizontal branch pipe is communicated with the corresponding vertical branch pipe, the other end of each horizontal branch pipe is a communication port of two adjacent processing units, the other end of each horizontal branch pipe in the third processing unit penetrates through the other side wall of the trapezoidal box body to be connected with the water outlet pipe, the T-shaped three-way pipe horizontally and transversely enables treated wastewater to enter the lower unit through the horizontal branch pipe on the lower portion of the liquid level, and meanwhile, oil residues float to the liquid.

Furthermore, a grid mesh is arranged in a water inlet pipe at the front part of a water inlet of the trapezoidal box body, so that solid residues in the wastewater are intercepted and removed in the early stage, and follow-up equipment is protected.

Furthermore, the upper parts of the first treatment unit, the second treatment unit and the third treatment unit are provided with a slag discharge groove for discharging oil slag floating to the liquid level after treatment.

Furthermore, the acute angle positions of the lower parts of the right trapezoid vertical sections of the first treatment unit, the second treatment unit and the third treatment unit are provided with sewage discharge holes for discharging small residues partially precipitated in the wastewater.

The utility model has the advantages that:

1 the oil-water separation of the restaurant wastewater is carried out by utilizing a treatment mode combining air floatation and gravity separation, and the oil-water separation device has the advantages of good oil removal effect and land occupation saving.

2 utilize trapezoidal box structure, to the waste water after the processing in some deposit tiny residue carry out the bottom and get rid of, increase the cleaning cycle of equipment, practice thrift the cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 water inlet pipe, 2 grid meshes, 3 trapezoidal box bodies, 4T-shaped three-way pipes, 5 pressurizing and air dissolving devices, 6 diffusion plates, 7 sewage discharge holes, 8 water outlet pipes and 9 slag discharge grooves.

Detailed Description

As shown in figure 1, the restaurant wastewater oil-water separation device comprises a water inlet pipe 1, a trapezoidal box body 3, a pressurized gas dissolving device 5, a diffusion plate 6 and a water outlet pipe 8, wherein the outlet end of the water inlet pipe 1 penetrates through the side wall of the trapezoidal box body 3 to be connected into the interior of the trapezoidal box body, and a 2-grid net is arranged in the water inlet pipe 1; the vertical section of the trapezoidal box body 3 along the advancing direction of the oil-water plug flow is in a right-angled trapezoid shape, the lower side of the trapezoidal box body is in a trapezoidal oblique side, the upper side of the trapezoidal box body is in a horizontal right-angle side, the two sides of the trapezoidal box body are sequentially provided with a long bottom side and a short top side along the advancing direction of the oil-water plug flow, the trapezoidal box body 3 is internally divided into three processing units which are sequentially communicated with water from front to back by two vertical partition plates, a T-shaped three-way pipe 4 which is horizontally transverse is arranged at the upper part of the two vertical partition plates of the trapezoidal box body 3, and a horizontal short; the diffusion plates 6 are arranged at the bottoms of the first treatment unit and the second treatment unit and are connected with an external pressurized gas dissolving device 5 through pipelines; the upper parts of the first, second and third treatment units are provided with a slag discharge groove 9, and the acute angle part of the lower part of the right-angle trapezoid vertical section is provided with a sewage discharge hole 7.

Restaurant waste water gets into trapezoidal box 3 inside at first through the bar screen 2 interception in inlet tube 1 after getting rid of solid residue, flow through first and second processing unit in proper order, discharge pressurized air respectively into diffuser plate 6 back diffusion entering waste water of two these units through pressurization appearance device 5 and carry out the air supporting and handle, discharge after utilizing the gravity separation principle to handle waste water through the third processing unit at last, discharge through row sediment groove 9 after the oil residue after handling floats to the liquid level, tiny residue that part deposits in the waste water is discharged through blowoff hole 7 of bottom.

Claims (5)

1. The utility model provides a food and beverage waste water oil-water separator, includes inlet tube, trapezoidal box, pressurization dissolved air device, diffuser plate, outlet pipe, its characterized in that: the outlet end of the water inlet pipe penetrates through the side wall of the trapezoid box body to be connected into the trapezoid box body, the vertical section of the trapezoid box body in the advancing direction of the oil-water plug flow is in a right-angle trapezoid shape, the lower side of the trapezoid box body is in a bevel edge, the upper side of the trapezoid box body is in a horizontal right-angle edge, the two sides of the trapezoid box body are sequentially in the advancing direction of the oil-water plug flow into a long bottom edge and a short top edge, the trapezoid box body is internally divided into three treatment units which are sequentially communicated with water in front and back by two vertical partition plates; the side wall of the tail end of the third processing unit is provided with a water outlet connected with a water outlet pipe.

2. The restaurant wastewater oil-water separation device as claimed in claim 1, wherein a T-shaped tee pipe horizontally arranged is arranged at the upper part of two vertical partition plates of the trapezoidal box body, and a T-shaped pipe horizontal short branch pipe of the third treatment unit penetrates through the other side wall of the trapezoidal box body to be connected with a water outlet pipe.

3. The restaurant wastewater oil-water separation device as claimed in claim 1, wherein a grid is installed in the water inlet pipe in front of the water inlet of the trapezoidal box body.

4. The restaurant wastewater oil-water separation device as claimed in claim 1, wherein a slag discharge groove is formed at the upper part of the first treatment unit, the second treatment unit and the third treatment unit.

5. The restaurant wastewater oil-water separation device as claimed in claim 1, wherein sewage discharge holes are formed at acute angles of lower portions of right-angle trapezoidal vertical sections of the first treatment unit, the second treatment unit and the third treatment unit.

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