CN210855377U - Kitchen waste oil-water separator - Google Patents

Abstract

The utility model relates to a kitchen garbage water oil separating machine, kitchen garbage water oil separating machine divide into two-stage separation room and a waste water isolation room, the one-level separation room is main separation room, the heating of bottom, agitating unit simultaneous design is in the one-level separation room, the oil-water separation speed has been accelerated, play basic separation's purpose to the profit, the secondary separation room is as supplementary separation room, further thorough separation to a small amount of oil droplets in the waste water, the oil-water separation effect of this kind of two-stage oil-water separation design is too better, the oil storage room is retrieved to waste oil to the convenience, can the incessant unmanned operation of automated control, efficiency is higher.

Description

Kitchen waste oil-water separator

Technical Field

The utility model relates to an oil-water separator, more specifically say, relate to a kitchen garbage water oil separating machine.

Background

With the improvement of environmental protection consciousness of residents in China, the classified collection of garbage is gradually promoted, and the quantity of urban organic garbage, particularly kitchen garbage, is increased sharply. Due to insufficient attention in the past, most kitchen waste is used for illegal cultivation and even extraction of illegal cooking oil, and finally the human health is harmed.

At present, kitchen waste is collected in a centralized manner and used as a biomass resource for fermenting bio-organic fertilizer and biodiesel. However, a large amount of oily wastewater, mainly animal and vegetable oil, is contained in the kitchen waste, and the waste oil can be used for producing biodiesel and the like after being separated.

Some oil-water separators are available in the current market, but the separation effect is poor, namely the separation efficiency is low, equipment is easy to block and difficult to clean, and the oil-water separators have multiple faults and short service life.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect that the separation effect is poor, inefficiency of prior art, a hierarchical abundant separation kitchen garbage oil-water separating centrifuge is provided.

The utility model provides a technical scheme that its technical problem adopted is: the oil-water separator for the kitchen waste comprises a primary separation chamber, a secondary separation chamber, a wastewater isolation chamber, an oil storage chamber and a control system;

a first water inlet, a first-stage oil discharge valve and a first-stage liquid level sensing device are arranged on the side wall of the first-stage separation chamber, a stirring device and a heating device are arranged in the first-stage separation chamber and close to the bottom of the first-stage separation chamber, and a first-stage communicating valve communicated with the second-stage separation chamber is arranged at the bottom of the first-stage separation chamber;

the first water inlet is provided with a filtering device for filtering oil and water entering the primary separation chamber, and the stirring device is used for stirring the oil and water at the bottom in the primary separation chamber;

the primary liquid level sensing device senses the liquid level height in the primary separation chamber, when the liquid level is higher than the first height after the heating device, the heating device is started to heat, and when the liquid level continues to rise to reach a second height, the primary communicating valve is opened, so that the wastewater at the lower part of the primary separation chamber enters the secondary separation chamber;

a second water inlet communicated with the first-stage communicating valve is arranged in the second-stage separating chamber, a second-stage liquid level sensing device and a second-stage oil discharging valve are arranged on the side wall of the second-stage separating chamber, and a second-stage communicating valve communicated with the wastewater isolating chamber is arranged at the bottom of the second-stage separating chamber;

the second water inlet is upwards deviated from the bottom surface of the secondary separation chamber, the secondary liquid level sensing device senses the liquid level height in the secondary separation chamber, and when the liquid level in the secondary separation chamber reaches the second water inlet, the secondary communication valve is opened to allow the wastewater at the lower part of the secondary separation chamber to enter the wastewater isolation chamber;

a third water inlet communicated with the secondary communication valve is formed in the bottom of the wastewater isolation chamber, and an overflow port is formed in the side wall of the wastewater isolation chamber;

the position of the primary oil drain valve is higher than the second height, the position of the secondary oil drain valve is lower than the position of the primary oil drain valve and higher than the second height, and the primary oil drain valve and the secondary oil drain valve are communicated to the oil storage chamber.

Preferably, the lower edge of the primary oil drain valve and the upper edge of the secondary oil drain valve are at the same level, and the lower edge of the secondary oil drain valve and the upper edge of the overflow port are at the same level.

Preferably, the filtering device is a water inlet pipe joint with a detachable filter screen;

first water inlet setting is in the bottom of the lateral wall of primary separation chamber one fifth position upwards, agitating unit's stirring head is located the up one fifth position in primary separation chamber bottom, heating device is including setting up the heating rod of the bottom one sixth position upwards of the lateral wall of primary separation chamber.

Preferably, the middle part of the primary separation chamber is provided with a temperature control induction probe in communication connection with the heating device, and the heating device stops heating when the temperature of the oil and water in the primary separation chamber reaches the temperature.

Preferably, the primary liquid level sensing device comprises a first liquid level probe and a second liquid level probe, the first liquid level probe is arranged at a first height and is higher than the heating device, the heating device is started to heat when the liquid level reaches the first height, and the second liquid level probe is arranged at a second height and is lower than the primary oil drain valve.

Preferably, the second water inlet is located at the upward quarter position of the bottom of the secondary separation chamber, and the secondary liquid level sensing device comprises a third liquid level probe, wherein the third liquid level probe corresponds to the second water inlet in height position and is lower than the secondary oil drain valve.

Preferably, the overflow port is arranged at the upper end of the side wall of the wastewater isolation chamber, and the wastewater isolation chamber further comprises a three-level liquid level sensing device arranged on the upper edge of the overflow port and a drain valve arranged at the bottom of the wastewater isolation chamber.

Preferably, a four-stage liquid level sensing device in communication connection with an alarm device is arranged at the upper end in the oil storage chamber; and/or the presence of a gas in the gas,

the upper end in the oil storage chamber is equipped with level four liquid level induction system, the bottom of oil storage chamber be equipped with level four liquid level induction system communication connection's bleeder valve, with liquid level in the oil storage chamber reaches when level four liquid level induction system's the detection position, open the bleeder valve.

Preferably, the bottom of the primary separation chamber, the secondary separation chamber and the waste water isolation chamber is provided with a manual emptying valve, the outer side of the kitchen waste oil-water separator is provided with a bubble level meter, and a leveling screw button is arranged on a supporting corner post of the kitchen waste oil-water separator, so that the kitchen waste oil-water separator is integrally leveled.

Preferably, kitchen garbage oil-water separator still includes belt cleaning device, belt cleaning device include the purge chamber, respectively with first shower nozzle, the second shower nozzle of purge chamber intercommunication, first shower nozzle is located one-level separation chamber top, the second shower nozzle is located second grade separation chamber top.

Implement the utility model discloses a kitchen garbage water oil separating machine has following beneficial effect: the kitchen waste oil-water separator is divided into a two-stage separation chamber and a waste water isolation chamber, the primary separation chamber is a main separation chamber, the heating and stirring device at the bottom is simultaneously designed in the primary separation chamber, the oil-water separation speed is accelerated, the purpose of basic separation of oil and water is achieved, the secondary separation chamber is used as an auxiliary separation chamber, a small amount of oil drops in waste water are further thoroughly separated, the oil-water separation effect of the two-stage oil-water separation design is better, the automatic control continuous unmanned operation can be realized, and the efficiency is higher.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic view of an internal structure of a kitchen waste oil-water separator in an embodiment of the present invention;

FIG. 2 is a schematic view of the primary separation chamber of FIG. 1 in communication with an oil reservoir chamber;

fig. 3 is a schematic view showing the structure in which the secondary separation chamber of fig. 1 communicates with the oil reservoir chamber.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the oil-water separator for kitchen waste in a preferred embodiment of the present invention includes a primary separation chamber 1, a secondary separation chamber 2, a waste water isolation chamber 3, an oil storage chamber 4, and a control system 5.

The side wall of the primary separation chamber 1 is provided with a first water inlet 11, a primary oil discharge valve 12 and a primary liquid level sensing device 13, and a stirring device 14 and a heating device 15 are arranged in the primary separation chamber 1 and close to the bottom.

The first water inlet 11 is provided with a filtering device 16 for filtering the oil-water entering the primary separation chamber 1, and the stirring device 14 is used for stirring the oil-water at the bottom in the primary separation chamber 1.

The bottom of the first-stage separation chamber 1 is provided with a first-stage communicating valve 17 communicated to the second-stage separation chamber 2, so that the waste water at the bottom of the first-stage separation chamber 1 can flow to the second-stage separation chamber 2.

The liquid level in the one-level separation chamber 1 is sensed by the one-level liquid level sensing device 13, when the liquid level is higher than the first height behind the heating device 15, the heating device 15 is started to heat, and when the liquid level continuously rises to reach the second height, the one-level communication valve 17 is opened, so that the wastewater at the lower part of the one-level separation chamber 1 enters the second-level separation chamber 2.

A second water inlet 21 communicated with the first-stage communicating valve 17 is arranged in the second-stage separating chamber 2, a second-stage liquid level sensing device 22 and a second-stage oil discharging valve 23 are arranged on the side wall of the second-stage separating chamber 2, and a second-stage communicating valve 24 communicated to the waste water isolating chamber 3 is arranged at the bottom of the second-stage separating chamber 2.

The second water inlet 21 upwards deviates from the bottom surface of the secondary separation chamber 2, the secondary liquid level sensing device 22 senses the liquid level height in the secondary separation chamber 2, and when the liquid level in the secondary separation chamber 2 reaches the second water inlet 21, the secondary communication valve 24 is opened, so that the wastewater at the lower part of the secondary separation chamber 2 enters the wastewater isolation chamber 3.

When the liquid level reaches the sensing position of the secondary liquid level sensing device 22, the secondary communication valve 24 at the lower part of the secondary separation chamber 2 is opened, that is, when the liquid level exceeds the position of the second water inlet 21, the bottom secondary communication valve 24 is opened. The main purpose is to provide sufficient oil-water separation time for the swill containing a small amount of oil droplets entering the secondary separation chamber 2, so as to form oil-water layering, and ensure that the newly entered swill at the second water inlet 21 will not disturb the lower wastewater layer. Because the oil and water in the primary separation chamber 1 are not completely separated and a small amount of oil droplets are left at the second water inlet 21 of the secondary separation chamber 2, the oil droplets can immediately float up and cannot sink once entering the secondary separation chamber 2 due to the action of low density of the oil droplets and the action of waste heat of the primary separation chamber 1, namely, the liquid below the second water inlet 21 is basically wastewater and no longer contains oil droplets. Thus, the wastewater entering the wastewater isolation chamber 3 is ensured not to contain oil droplets, and the purpose of further and thoroughly separating oil from water in the secondary separation chamber 2 is achieved.

The bottom of the waste water isolation chamber 3 is provided with a third water inlet 31 communicated with the secondary communicating valve 24, the side wall of the waste water isolation chamber 3 is provided with an overflow port 32, and the overflow port 32 is always in an open state. When the wastewater which has entered the wastewater isolation chamber 3 and has not contained oil droplets reaches the overflow port 32, the wastewater is naturally discharged from the overflow port 32.

The position of the first-stage oil drain valve 12 is higher than the second height, and the lower edge of the first-stage oil drain valve 12 and the upper edge of the second-stage oil drain valve 23 are positioned at the same horizontal height; the first-stage drain valve 12 and the second-stage drain valve 23 are connected to the oil storage chamber 4, and allow the oil separated in the upper stage to flow into the oil storage chamber 4.

The control system 5 is in communication connection with the primary liquid level sensing device 13, the stirring device 14, the heating device 15, the primary communicating valve 17, the secondary liquid level sensing device 22, the secondary communicating valve 24 and the like, and controls actions such as stirring, heating, valve opening and closing and the like according to liquid level signals.

In the normal operation of the kitchen waste oil-water separator, the primary separation chamber 1, the secondary separation chamber 2 and the wastewater isolation chamber 3 form a dynamic balance.

The lower edge of the secondary oil discharge valve 23 and the upper edge of the overflow port 32 are at the same horizontal height, and the wastewater liquid level of the wastewater isolation chamber 3 is at the overflow port 32 and cannot exceed the upper edge of the overflow port 32 under the normal operation condition. Because second grade separator chamber 2 and waste water isolation chamber 3 are in the connected state all the time in normal operating, based on the U-shaped pipe principle, have the oil reservoir that one deck density is obviously less than waste water on 2 waste water upper portions of second grade separator chamber, this waste water liquid level that must form waste water isolation chamber 3 must be higher than the waste water liquid level of second grade separator chamber 2, and the oil reservoir liquid level on 2 upper portions of second grade separator chamber is also must be higher than the waste water liquid level of waste water isolation chamber 3.

Therefore, the secondary oil discharge valve 23 is arranged at the horizontal position of the upper part of the secondary separation chamber 2, which is close to the upper edge of the overflow port 32 of the wastewater isolation chamber 3, namely, the lower edge of the secondary oil discharge valve 23 of the secondary separation chamber 2 is at the same horizontal position with the upper edge of the overflow port 32 of the wastewater isolation chamber 3, and when the oil layer liquid level of the secondary separation chamber 2 is accumulated to the secondary oil discharge valve 23, the oil layer is naturally overflowed and discharged to the oil storage chamber 4. This arrangement ensures that even if there is no oil-containing waste water in both the secondary separation chamber 2 and the waste water isolation chamber 3, there is no waste water entering the oil storage chamber 4 provided in the lower part of the machine body through the secondary oil discharge valve 23.

In the same principle, the same primary oil discharge valve 12 is arranged at the top of the primary separation chamber 1, and the lower edge of an oil discharge port of the primary oil discharge valve 12 and the upper edge of an oil discharge port of a secondary oil discharge valve 23 of the secondary separation chamber 2 are in the same horizontal position. The oil drain port of the first-stage separation chamber 1 is always in an open state in the normal operation of the separator, and when the oil layer at the top of the first-stage separation chamber 1 is accumulated to reach the oil drain port, the oil layer is discharged through the oil drain port and collected in the oil storage chamber 4 under the action of natural overflow. When the separator normally operates, the primary separation chamber 1, the secondary separation chamber 2 and the wastewater isolation chamber 3 are always in a dynamic balance process.

The swill after filtering carries out basic separation through the main oil-water separation room of one-level, and a small amount of oil droplets that do not thoroughly separate can thoroughly separate at second grade separator 2, and the waste water of managing out at last passes through waste water isolation room 3 and discharges, can directly discharge to municipal pipe network, and waste oil is collected in oil storage room 4 after being separated.

The filtering device 16 is a water inlet pipe joint with a detachable filter screen; mainly filters the solid food residue in the kitchen waste swill oil water.

The first water inlet 11 is arranged at the upward fifth position of the bottom of the side wall of the first-stage separation chamber 1, and is mainly used for oil-water separation of the first-stage separation chamber 1 through enough time and floating space, so that the oil-water separation is facilitated.

The stirring head 141 of the stirring device 14 is located at the upper fifth of the bottom of the primary separation chamber 1, and mainly avoids disturbance of the upper liquid.

The heating device 15 comprises a heating rod arranged at one sixth position upwards at the bottom of the side wall of the primary separation chamber 1, the entering swill is heated, and meanwhile, the heating is ensured to be uniform by stirring, so that oil droplets in the swill are upwards floated, and the purpose of oil-water layering is achieved.

The primary liquid level sensing device 13 comprises a first liquid level probe 131 and a second liquid level probe 132, the first liquid level probe 131 is arranged at a first height and is higher than the heating device 15, the heating device 15 is started to heat when the liquid level reaches the first height, and the second liquid level probe 132 is arranged at a second height and is lower than the primary oil drain valve 12. Whether the heating device 15 works is controlled by the first liquid level probe 131 and the second liquid level probe 132, and when the liquid level continues to rise to reach the second height, the first-stage communication valve 17 is opened, so that the wastewater containing a small amount of oil droplets at the lower part of the first-stage separation chamber 1 enters the second-stage separation chamber 2.

The middle part of the primary separation chamber 1 is provided with a temperature control induction probe 18 which is in communication connection with the heating device 15, when the temperature of the oil and water in the primary separation chamber 1 reaches 50 ℃, the heating device 15 stops heating, otherwise, the heating is continued. The oil and water in the swill are quickly separated in the first-stage separation chamber 1, and most of oil droplets in the swill quickly float on the upper part of the water surface to form an oil layer.

The second water inlet 21 is located the upwards quarter position in second grade separating chamber 2 bottom, and second grade liquid level induction system 22 includes third liquid level probe 221, and third liquid level probe 221 is equivalent with the high position of second water inlet 21, and is less than second grade oil drain valve 23, and when third liquid level probe 221 sensed the liquid level in second grade separating chamber 2 and reached second water inlet 21, open second grade intercommunication valve 24, let the waste water of second grade separating chamber 2 lower part get into waste water isolation chamber 3.

The overflow port 32 is provided at the upper end of the side wall of the wastewater isolation chamber 3, and the overflow port 32 is always in an open state. When the wastewater which has entered the wastewater isolation chamber 3 and has not contained oil droplets reaches the overflow port 32, the wastewater is naturally discharged from the overflow port 32.

The wastewater isolation chamber 3 further comprises a three-stage liquid level sensing device 33 arranged on the upper edge of the overflow port 32, and a drain valve (not shown) arranged at the bottom of the wastewater isolation chamber 3. If the wastewater liquid level rises too fast to exceed the natural overflow quantity of the overflow port 32, namely the wastewater liquid level touches the three-level liquid level sensing device 33, the automatic drain valve at the lower part of the wastewater isolation chamber 3 will be opened to drain water quickly, otherwise the automatic drain valve will be always in a closed state.

In this embodiment, the primary separation chamber 1 and the secondary separation chamber 2 share the oil reservoir chamber 4. The upper end in the oil storage chamber 4 is equipped with level four liquid level induction system 41, and the bottom of oil storage chamber 4 is equipped with bleeder valve 42 with level four liquid level induction system 41 communication connection to when the liquid level in the oil storage chamber 4 reaches level four liquid level induction system 41's detection position, open bleeder valve 42.

When the waste oil in the oil storage chamber 4 reaches the four-level liquid level sensing device 41, namely the oil storage chamber 4 is full of oil, the separator stops running, the full-oil indicator lamp is lightened, and the alarm device sends out alarm buzzing sound to remind an operator of draining oil in time for recovery.

In addition, the oil storage chamber 4 can also be connected with other oil collecting equipment through an oil drain valve 42, when the waste oil in the oil storage chamber 4 reaches the four-stage liquid level sensing device 41, namely when the oil storage chamber 4 is full of oil, the oil drain valve 42 is automatically opened to pump out the waste oil in time, and the continuous operation of the separator is ensured.

The oil-water separator is provided with a control interface corresponding to the control system 5, so that automatic control can be realized, continuous and uninterrupted operation can be realized, operators do not need to keep on waiting for operation, and only the waste oil in the oil storage chamber 4 needs to be periodically recovered according to the oil-water separation amount.

The bottom of the first-stage separation chamber 1, the bottom of the second-stage separation chamber 2 and the bottom of the wastewater isolation chamber 3 are respectively provided with a manual emptying valve 6, and when the equipment is not used for a long time or needs to be moved, the waste liquid in the machine body needs to be emptied through the manual emptying valve 6 at the bottom.

The kitchen waste oil-water separator further comprises a cleaning device 7, the cleaning device 7 comprises a cleaning chamber 71, and a first spray head 72 and a second spray head 73 which are respectively communicated with the cleaning chamber 71, the first spray head 72 is positioned at the top of the primary separation chamber 1, and the second spray head 73 is positioned at the top of the secondary separation chamber 2.

Because the viscosity of the waste oil is high, the machine body runs for a long time, and the waste oil can adhere to the machine body wall, the heating device 15 and the pipeline and needs to be cleaned regularly. Before cleaning, the bottom emptying valve 6 must be fully opened. The cleaning chamber 71 of the cleaning device 7 is positioned at the upper part of the second-stage separation chamber 2 and can be directly connected with a water pipe through a water inlet valve. A cleaning agent inlet 74 is provided at the top of the cleaning chamber 71, and cleaning agent can be introduced into the cleaning chamber 71.

When the cleaning mode is started, the water inlet valve is automatically opened to feed water, the water is uniformly mixed with the cleaning agent, and the cleaning chamber 71 is provided with a cleaning pressure pump. The cleaning liquid is sprayed out through the first spray head 72 and the second spray head 73 arranged at the top ends of the first-stage separation chamber 1 and the second-stage separation chamber 2 by the pressure pump through the pressure pipeline, and the high-pressure cleaning liquid can thoroughly clean the first-stage separation chamber 1 and the second-stage separation chamber 2.

Four supporting points at the bottom of the kitchen waste oil-water separator are designed into the fixable universal wheels 81, so that the kitchen waste oil-water separator can be fixed on site and can be conveniently and randomly moved in a short distance. The oil-water separator is necessarily required to be in a horizontal position, and the oil-water separator is required to be leveled and fixed before operation, so that normal operation can be ensured. Therefore, the leveling screw buttons 82 are arranged on the four supporting corner columns of the machine body, so that the whole leveling of the machine body is facilitated.

The bubble level meter 83 is arranged on the outer side of the kitchen waste oil-water separator, preferably, the bubble level meter 83 is arranged beside the first water inlet 11, and the leveling screw buttons 82 are arranged on the supporting corner columns of each supporting point of the kitchen waste oil-water separator, so that the kitchen waste oil-water separator can be leveled integrally.

The bubble level meter 83 is arranged on the outer side of the kitchen waste oil-water separator, and the leveling screw buttons 82 are arranged on the supporting corner columns of the kitchen waste oil-water separator, so that the kitchen waste oil-water separator can be conveniently leveled integrally.

The utility model discloses kitchen garbage water oil separating machine's main advantage:

a detachable filter screen device is designed at the first water inlet 11, solid food residues are filtered out, and the oil-water separation quality is guaranteed.

The first water inlet 11 and the stirring device 14 are designed at one fifth of the positions of the first-stage separation chamber 1 and the bottom of the first-stage separation chamber, so that enough space is provided for oil-water separation, and the oil-water separation efficiency is higher.

The device is designed into a two-stage separation chamber and a wastewater isolation chamber 3, a heating and stirring device 14 is simultaneously designed into a first-stage separation chamber 1, the first-stage separation chamber 1 is used as a main separation chamber, and a second-stage separation chamber 2 is used as an auxiliary separation chamber, and the device is obviously different from other existing devices.

The primary separation chamber 1 is designed as a main separation chamber, the heating device is designed at the bottom of the primary separation chamber to further accelerate the oil-water separation speed, the purpose of basic separation of oil and water is achieved, the secondary separation chamber 2 further thoroughly separates a small amount of oil drops in waste water, and the oil-water separation effect of the two-stage oil-water separation design is better and the efficiency is higher.

The equipment is flexible in design, can automatically control uninterrupted unmanned operation, is simple and convenient to operate, saves time and labor, and is very convenient to carry and install.

The design has an automatic cleaning function, effectively ensures the operation quality and the service life of equipment, has good maintainability and is not possessed by other existing equipment.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. An oil-water separator for kitchen waste is characterized by comprising a primary separation chamber (1), a secondary separation chamber (2), a waste water isolation chamber (3), an oil storage chamber (4) and a control system (5);

a first water inlet (11), a first-stage oil discharge valve (12) and a first-stage liquid level sensing device (13) are arranged on the side wall of the first-stage separation chamber (1), a stirring device (14) and a heating device (15) are arranged in the first-stage separation chamber (1) and close to the bottom of the first-stage separation chamber, and a first-stage communicating valve (17) communicated with the second-stage separation chamber (2) is arranged at the bottom of the first-stage separation chamber (1);

the first water inlet (11) is provided with a filtering device (16) for filtering oil and water entering the primary separation chamber (1), and the stirring device (14) is used for stirring the oil and water at the bottom in the primary separation chamber (1);

the primary liquid level sensing device (13) senses the liquid level height in the primary separation chamber (1), when the liquid level is higher than the first height behind the heating device (15), the heating device (15) is started to heat, and when the liquid level continuously rises to reach a second height, the primary communicating valve (17) is opened, so that the wastewater at the lower part of the primary separation chamber (1) enters the secondary separation chamber (2);

a second water inlet (21) communicated with the first-stage communication valve (17) is formed in the second-stage separation chamber (2), a second-stage liquid level sensing device (22) and a second-stage oil discharge valve (23) are arranged on the side wall of the second-stage separation chamber (2), and a second-stage communication valve (24) communicated with the wastewater isolation chamber (3) is arranged at the bottom of the second-stage separation chamber (2);

the second water inlet (21) is upwardly deviated from the bottom surface of the secondary separation chamber (2), the secondary liquid level sensing device (22) senses the liquid level height in the secondary separation chamber (2), and when the liquid level in the secondary separation chamber (2) reaches the second water inlet (21), the secondary communication valve (24) is opened to allow the wastewater at the lower part of the secondary separation chamber (2) to enter the wastewater isolation chamber (3);

a third water inlet (31) communicated with the secondary communication valve (24) is formed in the bottom of the wastewater isolation chamber (3), and an overflow port (32) is formed in the side wall of the wastewater isolation chamber (3);

the position of the primary oil drain valve (12) is higher than the second height, the position of the secondary oil drain valve (23) is lower than the position of the primary oil drain valve (12) and higher than the second height, and the primary oil drain valve (12) and the secondary oil drain valve (23) are communicated to the oil storage chamber (4).

2. The kitchen waste oil-water separator according to claim 1, wherein the lower edge of the primary oil drain valve (12) and the upper edge of the secondary oil drain valve (23) are at the same level, and the lower edge of the secondary oil drain valve (23) and the upper edge of the overflow port (32) are at the same level.

3. The oil-water separator for kitchen waste according to claim 1, characterized in that said filtering device (16) is a water inlet pipe joint with a detachable filter screen;

first water inlet (11) set up the bottom of the lateral wall of one-level separation chamber (1) is in the one fifth position upwards, stirring head (141) of agitating unit (14) are located one-level separation chamber (1) bottom is in the one fifth position upwards, heating device (15) are including setting up the heating rod of the one sixth position upwards in the bottom of the lateral wall of one-level separation chamber (1).

4. The kitchen waste oil-water separator according to any one of claims 1 to 3, wherein a temperature control induction probe (18) in communication connection with the heating device (15) is arranged in the middle of the primary separation chamber (1), and when the oil-water temperature of the primary separation chamber (1) reaches 50 ℃, the heating device (15) stops heating.

5. The kitchen waste oil-water separator according to any one of claims 1 to 3, wherein the primary liquid level sensing device (13) comprises a first liquid level probe (131) and a second liquid level probe (132), the first liquid level probe (131) is arranged at the first height and is higher than the heating device (15), the heating device (15) is started to heat when the liquid level reaches the first height, and the second liquid level probe (132) is arranged at the second height and is lower than the primary oil drain valve (12).

6. The kitchen waste oil-water separator according to claim 1, wherein the second water inlet (21) is located at a position one fourth upward from the bottom of the secondary separation chamber (2), and the secondary liquid level sensing device (22) comprises a third liquid level probe (221), wherein the third liquid level probe (221) is equivalent to the second water inlet (21) in height position and is lower than the secondary oil drain valve (23).

7. The kitchen waste oil-water separator according to claim 1, wherein the overflow port (32) is arranged at the upper end of the side wall of the waste water isolation chamber (3), the waste water isolation chamber (3) further comprises a three-level liquid level sensing device (33) arranged on the upper edge of the overflow port (32), and a drain valve arranged at the bottom of the waste water isolation chamber (3).

8. The kitchen waste oil-water separator according to claim 1, wherein a four-stage liquid level sensing device (41) in communication connection with an alarm device is arranged at the upper end in the oil storage chamber (4); and/or the presence of a gas in the gas,

the upper end in oil storage chamber (4) is equipped with level four liquid level induction system (41), the bottom of oil storage chamber (4) be equipped with level four liquid level induction system (41) communication connection's bleeder valve (42), with liquid level in oil storage chamber (4) reaches during the detection position of level four liquid level induction system (41), open bleeder valve (42).

9. The kitchen waste oil-water separator according to claim 1, characterized in that manual emptying valves (6) are arranged at the bottoms of the primary separating chamber (1), the secondary separating chamber (2) and the waste water isolating chamber (3), a bubble level meter (83) is arranged at the outer side of the kitchen waste oil-water separator, and leveling screw buttons (82) are arranged on supporting corner columns of the kitchen waste oil-water separator, so that the kitchen waste oil-water separator is leveled integrally.

10. The kitchen waste oil-water separator according to claim 1, further comprising a cleaning device (7), wherein the cleaning device (7) comprises a cleaning chamber (71), a first spray head (72) and a second spray head (73) which are respectively communicated with the cleaning chamber (71), the first spray head (72) is located at the top of the primary separation chamber (1), and the second spray head (73) is located at the top of the secondary separation chamber (2).

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