Spiral waste water oil separator

Abstract

The utility model relates to a spiral waste water oil separator which comprises a waste water collecting box provided with a water inlet pipeline and a water outlet pipeline, an oil-water separating mechanism and a solid-liquid separating mechanism, the oil-water separating mechanism and the solid-liquid separating mechanism are arranged on the upper portion and the lower portion of the waste water collecting box, the waste water collecting box is a cylindrical shell, and a spiral water diversion track is arranged in the waste water collecting box. The spiral water diversion track is made of a thin plate, one side of the thin plate is fixed to one side wall of the waste water collecting box, the thin plate is bent and rolled inwards to the center position of the waste water collecting box with the fixed side wall as the starting point, and the thin plate bent and rolled inwards forms the water diversion track rotationally distributed from outside to inside. The fixed position of the spiral water diversion track and the side wall of the wastewater collection tank is a water diversion inlet end, and the end of the spiral water diversion track in the center of the wastewater collection tank is a water diversion drainage end. Solid substances (food residues) can be better separated from discharged waste water, the discharged waste water is cleaner, and the problems that blockage is easily caused by directly discharging the waste water into a sewer and the water quality of a discharged water path is polluted by the discharged solid substances (food residues) are avoided.

Description

Technical Field

[0001] The utility model relates to kitchen wastewater treatment equipment, in particular to treatment equipment used for solid-liquid, oil-water separation of kitchen wastewater. Background Art

[0002] At present, the solid-liquid, oil-water separation equipment for restaurant kitchen waste includes a wastewater collection box, an oil-water separation mechanism and a solid-liquid separation mechanism. When collecting wastewater, some solid matter (food residue) flows into the wastewater collection box and settles at the bottom of the wastewater collection box. Therefore, it needs to be cleaned regularly during use, but a large part of it is still discharged through the drain outlet, so that the water discharged from the solid-liquid, oil-water separation equipment for restaurant kitchen waste still contains a large amount of solid matter such as food residue. If it is directly discharged into the sewer, it will inevitably cause sewer blockage or pollute the water quality of other water. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems existing in the existing restaurant wastewater treatment equipment and to provide a centrifugal rotating wastewater grease separator.

[0004] A spiral wastewater oil separator includes a wastewater collecting box provided with an inlet pipe and an outlet pipe, and an oil-water separation mechanism and a solid-liquid separation mechanism arranged above and below the wastewater collecting box. The wastewater collecting box is a cylindrical shell, and a spiral water diversion track is provided in the wastewater collecting box. The spiral water diversion track is made of a thin plate, one side of the thin plate is fixed to a side wall of the wastewater collecting box, and is bent inward with the fixed side wall as the starting point to the center position of the wastewater collecting box. The inward-bent thin plate forms a water diversion track that rotates from the outside to the inside. The fixed position of the spiral water diversion track and the side wall of the wastewater collecting box is the water inlet end, and the end of the spiral water diversion track at the center position of the wastewater collecting box is the water diversion and drainage end. The inlet pipe is connected to the water inlet end, and the outlet pipe is connected to the water diversion and drainage end.

[0005] Furthermore, the spiral water diversion track is provided with a guide plate, which is arranged at the water inlet end.

[0006] Furthermore, the guide plate is inclined at 30-45 degrees.

[0007] Furthermore, the oil-water separation mechanism includes a cover, a heater, an agitator and an oil drain pipe. The cover is a conical shell with an insulation layer. The cover is installed above the wastewater collection box, and the heater and agitator are arranged in the cover.

[0008] Further, the solid-liquid separation mechanism includes a slag discharge funnel, a material pusher, and a valve. The slag discharge funnel is a conical shell installed below the wastewater collection tank. The bottom of the slag discharge funnel is provided with a slag discharge port, and a discharge pipe is connected to the slag discharge port. The material pusher is arranged on the discharge pipe at the outlet of the slag discharge port and is used to push the solid substances at the slag discharge port out. The valve is used to control the opening and closing of the slag discharge port.

[0009] Further, a slag storage tank is provided below the slag discharge funnel.

[0010] Further, the water inlet pipeline is connected to the upper part of the water inlet end of the spiral water diversion track inside the wastewater collection tank.

[0011] Further, the water outlet pipeline extends into the central position of the spiral water diversion track at the low position or bottom of the wastewater collection tank.

[0012] Further, a water pump is provided on the water inlet pipeline.

[0013] Further, a baffle is provided at the bottom of the spiral water diversion track. The baffle is provided with a water outlet and a slag discharge slot. The water outlet corresponds to the water drainage end of the spiral water diversion track at the central position end of the wastewater collection tank, and the slag discharge slot is located at the corresponding position in the latter half of the spiral water diversion track.

[0014] Advantages of the present utility model:

[0015] 1. The present utility model is provided with a spiral water diversion track. Therefore, when the kitchen wastewater enters the wastewater collection tank through the spiral water diversion track, the wastewater rotates rapidly under the action of water pressure and the spiral water diversion track, making the wastewater form a centrifugal force. The solid substances (food residues) in the wastewater approach the inner side wall of the wastewater collection tank under the action of the centrifugal force and precipitate downward. The wastewater from which the solid substances (food residues) are separated is discharged from the central position of the wastewater collection tank. Therefore, the discharged wastewater can better separate the solid substances (food residues), the discharged wastewater is cleaner, and it can better avoid blockage caused by direct discharge into the sewer and avoid the discharged solid substances (food residues) from polluting the water quality of the discharged waterway.

[0016] 2. The spiral water diversion track of the present utility model is provided with a guide plate, thereby better guiding the wastewater into the wastewater collection tank to rotate in the spiral water diversion track to generate a centrifugal force.

[0017] 3. The spiral water diversion track of the present utility model extends the flow time of the wastewater in the wastewater collection tank, thereby better enabling the solid substances (food residues) to sink under the action of the centrifugal force for separation, thereby improving the separation effect of the solid substances.

[0018] 4. A baffle is provided at the bottom of the spiral water diversion track of the present utility model. The baffle is provided with a water outlet and a slag discharge slot. Therefore, when the amount of wastewater is small, during the process of the wastewater flowing from the water inlet end to the water drainage end along the spiral water diversion track, solid substances (meal residues) gradually sink. When the solid substances (meal residues) sink and flow to the slag discharge slot, they continue to sink through the slag discharge slot to the solid-liquid separation mechanism for separation, and the wastewater after separating the solid substances (meal residues) continues to flow to the water drainage end and is discharged through the water outlet pipeline, thereby effectively separating the solid substances (meal residues) in the wastewater.

[0019] 5. A heat preservation layer is provided on the cover body of the present utility model, thereby better avoiding the solidification of the grease substances in the cover body and preventing the heat in the cover body from easily diffusing, resulting in an easy decrease in temperature, thereby saving the energy consumption of the heater and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural view of Embodiment 1 of the present utility model.

[0021] Figure 2 It is a top view of the structure of Embodiment 1 of the present utility model.

[0022] Figure 3 It is a cross-sectional view of the wastewater collection tank and the spiral water diversion track of Embodiment 1 of the present utility model.

[0023] Figure 4 It is a schematic structural view of Embodiment 2 of the present utility model.

[0024] Figure 5 It is a cross-sectional view of the wastewater collection tank and the spiral water diversion track of Embodiment 2 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] Refer to Figures 1 to 3The shown spiral wastewater oil separator includes a wastewater collection tank 1 provided with a water inlet pipeline 11 and a water outlet pipeline 12, and an oil-water separation mechanism 2 and a solid-liquid separation mechanism 3 arranged above and below the wastewater collection tank 1. That is, the spiral wastewater oil separator includes a wastewater collection tank 1, an oil-water separation mechanism 2 and a solid-liquid separation mechanism 3. The wastewater collection tank 1 is provided with a water inlet pipeline 11 and a water outlet pipeline 12. The oil-water separation mechanism 2 is arranged above the wastewater collection tank 1, and the solid-liquid separation mechanism 3 is arranged below the wastewater collection tank 1. The wastewater collection tank 1 is a cylindrical shell. A spiral water guiding track 4 is arranged inside the wastewater collection tank 1. The spiral water guiding track 4 is made of a thin plate 41. One side of the thin plate 41 is fixed to one side wall of the wastewater collection tank 1 and bends inward to roll to the central position of the wastewater collection tank 1 starting from the fixed side wall where it is located. The bent-inward-rolled thin plate 41 forms a water guiding track that rotates and distributes from the outside to the inside. The position where the spiral water guiding track 4 is fixed to the side wall of the wastewater collection tank 1 is the water inlet end 42 of the water guiding track, and the end of the spiral water guiding track 4 at the central position of the wastewater collection tank 1 is the water drainage end 43 of the water guiding track. The water inlet pipeline 11 is connected to the water inlet end 42 of the spiral water guiding track 4 inside the wastewater collection tank 1, that is, the water inlet pipeline 11 is connected to the position where the thin plate 41 is fixed to the side wall of the wastewater collection tank 1. The water outlet pipeline 12 is connected to the water drainage end 43 of the water guiding track, that is, the water outlet pipeline 12 is connected to the terminal at the central position of the spiral water guiding track 4 in the wastewater collection tank 1. When in use, when wastewater enters the wastewater collection tank 1 from the water inlet end 42 of the water guiding track through the water inlet pipeline 11, under the action of water pressure and the water guiding effect of the spiral water guiding track 4, the wastewater rotates in the wastewater collection tank 1 and generates a centrifugal force, so that the solid substances in the wastewater sink to the inner side wall of the wastewater collection tank 1 and the inner side wall of the rolled-in thin plate 41 of the spiral water guiding track 4 under the action of the centrifugal force generated by the rotation of the wastewater, and are separated and discharged by the solid-liquid separation mechanism 3, while the wastewater is discharged from the central position of the wastewater collection tank 1 through the water outlet pipeline 12.

[0028] In the embodiment, the water inlet pipeline 11 is connected to the upper part of the water inlet end 42 of the spiral water guiding track 4 inside the wastewater collection tank 1, and the water outlet direction of the water inlet pipeline 11 is tangent to the spiral water guiding track 4, so that the water outlet direction of the water inlet pipeline 11 is consistent with the water guiding direction of the spiral water guiding track 4. The water outlet pipeline 12 extends into the central position of the spiral water guiding track 4 at the low position or bottom of the wastewater collection tank 1, so that the wastewater is discharged from the central position of the wastewater collection tank 1 through the water outlet pipeline 12. The central position of the wastewater collection tank 1 is also the central position of the spiral water guiding track 4. The wastewater rotates and flows along the spiral water guiding track 4 to the central position of the spiral water guiding track 4 (that is, at the water drainage end 43) and is discharged.

[0029] The oil-water separation mechanism 2 includes a housing 21, a heater 22, a stirrer 23 and an oil discharge pipe 24. The housing 21 is a conical outer shell, and a heat preservation layer 211 is provided on the outer shell to prevent the temperature inside the housing 21 from dropping rapidly. Since oil and fat substances are likely to solidify in a low-temperature environment, the heat preservation layer can be a foam layer or a vacuum layer, that is, an additional layer of foam is added to the outer surface of the outer shell, or the outer shell adopts a double-layer structure with a sealed interval space in the middle, and this interval space is the vacuum layer of the outer shell; The housing 21 is installed above the wastewater collection tank 1 to form an oil collection cover above the wastewater collection tank 1. The heater 22 and the stirrer 23 are arranged inside the housing 21. The heater 22 is used to heat the oil and fat substances inside the housing 21 for easy discharge; The stirrer 23 is used to stir the oil and fat substances inside the housing 21. The oil discharge pipe 24 is connected above the housing 21 and is used to discharge the oil and fat substances from the housing 21. The solid-liquid separation mechanism 3 includes a slag discharge funnel 31, a material pusher 32 and a valve 33. The slag discharge funnel 31 is a conical outer shell, and the slag discharge funnel 31 is installed below the wastewater collection tank 1. A slag discharge port 311 is provided at the bottom of the slag discharge funnel 31, and a discharge pipe 312 is connected to the slag discharge port 311. The material pusher 32 is arranged on the discharge pipe 312 at the outlet of the slag discharge port 311. The material pusher 32 includes a pusher motor 321 and a pusher blade 322. The pusher motor 321 drives the pusher blade 322 to rotate, and the pusher blade 322 is located at the slag discharge port 311. Under the drive of the pusher motor 321, the solid substances at the slag discharge port 311 are pushed out, and the valve 33 is used to control the closing and opening of the slag discharge port 311.

[0030] Further, in order to improve the rotation effect of the wastewater entering the spiral water diversion track 4 and thus increase the centrifugal force, the spiral water diversion track 4 is provided with a guide plate 5, and the guide plate 5 is arranged at the water inlet end 42 of the water diversion track. The guide plate 5 is inclined at 30-45°, so as to guide the water into the spiral water diversion track 4 and further improve the rotational force of the water. When the wastewater is connected to the water inlet end 42 of the water diversion track through the water inlet pipeline 11, the wastewater is guided into the spiral water diversion track 4 under the action of the guide plate 5 and rotates along the spiral water diversion track 4 towards the water drainage end 43 at the center of the spiral water diversion track, and finally is discharged through the water outlet pipeline 12.

[0031] Specifically, a water pump 7 is provided in the water inlet pipeline 11 to improve the power of the wastewater entering the spiral water diversion track 4. A slag storage tank 6 is provided below the slag discharge funnel 31 to facilitate the collection of discharged solid substances (such as food residues).

[0032] Embodiment 2:

[0033] Refer to Figure 4 and Figure 5The spiral wastewater grease interceptor shown, a baffle 8 is provided at the bottom of the spiral water diversion track 4. The baffle 8 is provided with a water outlet 9 and a slag discharge slot 10. The water outlet 9 corresponds to the water diversion and drainage end 43 of the spiral water diversion track 4 at the central position end of the wastewater collection tank 1, and the slag discharge slot 10 is located at the corresponding position of the latter half of the spiral water diversion track 4. Specifically, one side of the thin plate 41 of the spiral water diversion track 4 is fixed to one side wall of the wastewater collection tank 1 and bends inward and curls to the central position of the wastewater collection tank 1 starting from the fixed side wall where it is located, that is, the thin plate 41 forms a water baffle that is bent and curled into multiple circles in the wastewater collection tank 1. For example, if the thin plate 41 is curled into 10 circles in the wastewater collection tank 1, its first circle is arranged at the central position, and the second circle, the third circle... gradually increase from the inside to the outside in turn. At this time, the water outlet 9 is arranged on the baffle 8 within the first circle, and the slag discharge slot 10 is arranged on the baffle 8 of the second circle. During use, the wastewater enters the spiral water diversion track 4 and flows to the slag discharge slot 10 and the water outlet 9 in sequence. During the flowing process, the solid substances (food residues) gradually sink. When the solid substances (food residues) flow to the slag discharge slot 10, they continue to sink through the slag discharge slot 10 to the solid-liquid separation mechanism 3 for separation, and the wastewater after separating the solid substances (food residues) continues to flow to the water diversion and drainage end 43 and is discharged through the water outlet pipeline 12. Thus, the solid substances (food residues) in the wastewater are effectively separated, avoiding the discharged wastewater containing excessive solid substances (food residues) and polluting the water quality.

Claims

1. Spiral wastewater oil separator, comprising a wastewater collection tank (1) provided with a water inlet pipeline (11) and a water outlet pipeline (12), and an oil-water separation mechanism (2) and a solid-liquid separation mechanism (3) arranged above and below the wastewater collection tank (1), characterized in that: The wastewater collection tank (1) is a cylindrical shell. Inside the wastewater collection tank (1), there is a spiral water diversion track (4). The spiral water diversion track (4) is made of a thin plate (41). One side of the thin plate (41) is fixed to one side wall of the wastewater collection tank (1) and bends inward from the fixed side wall to the central position of the wastewater collection tank (1). The bent-inward thin plate (41) forms a water diversion track that rotates and distributes from the outside to the inside. The position where the spiral water diversion track (4) is fixed to the side wall of the wastewater collection tank (1) is the water diversion inlet end (42). The end of the spiral water diversion track (4) at the central position of the wastewater collection tank (1) is the water diversion drainage end (43). The water inlet pipeline (11) is connected to the water diversion inlet end (42), and the water outlet pipeline (12) is connected to the water diversion drainage end (43).

2. The spiral wastewater grease interceptor according to claim 1, characterized in that: The spiral water diversion track (4) is provided with a guide plate (5), and the guide plate (5) is arranged at the water diversion inlet end (42).

3. The spiral wastewater oil separator according to claim 2, characterized in that: The guide plate (5) is inclined at 30 - 45°.

4. The spiral wastewater grease separator according to claim 1, characterized in that: The oil-water separation mechanism (2) includes a cover body (21), a heater (22), a stirrer (23), and an oil discharge pipe (24). The cover body (21) is a conical shell, and there is a heat insulation layer (211) on the shell. The cover body (21) is installed above the wastewater collection tank (1). The heater (22) and the stirrer (23) are arranged inside the cover body (21).

5. The spiral wastewater separator according to claim 1, characterized in that: The solid-liquid separation mechanism (3) includes a slag discharge funnel (31), a material pusher (32), and a valve (33). The slag discharge funnel (31) is a conical shell, and the slag discharge funnel (31) is installed below the wastewater collection tank (1). The bottom of the slag discharge funnel (31) is provided with a slag discharge port (311), and a discharge pipe (312) is connected to the slag discharge port (311). The material pusher (32) is arranged on the discharge pipe (312) at the outlet of the slag discharge port (311). The material pusher (32) is used to push the solid substances at the slag discharge port (311) out. The valve (33) is used to control the closing and opening of the slag discharge port (311).

6. The spiral wastewater separator according to claim 5, characterized in that: A slag storage tank (6) is arranged below the slag discharge funnel (31).

7. The spiral wastewater oil separator according to claim 1, characterized in that: The water inlet pipeline (11) is connected to the upper part of the water diversion inlet end (42) of the spiral water diversion track (4) inside the wastewater collection tank (1).

8. The spiral wastewater oil separator according to claim 1, characterized in that: The water outlet pipeline (12) extends into the central position of the spiral water diversion track (4) at the low position or bottom of the wastewater collection tank (1).

9. The spiral wastewater separator according to claim 1, characterized in that: The water inlet pipeline (11) is provided with a water pump (7).

10. The spiral wastewater separator according to any one of claims 1-9, characterized in that: A baffle (8) is arranged at the bottom of the spiral water diversion track (4). The baffle (8) is provided with a water outlet (9) and a slag discharge slot (10). The water outlet (9) corresponds to the position of the water diversion drainage end (43) of the spiral water diversion track (4) at the central position end of the wastewater collection tank (1). The slag discharge slot (10) is located at the corresponding position in the latter half of the spiral water diversion track (4).

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