Large kitchen grease storage tank with water and impurity separation function

Abstract

The utility model belongs to the technical field of food waste treatment, and particularly relates to a large kitchen grease storage tank with a water-impurity separation function. According to the large kitchen grease storage tank with the water and impurity separation function, after grease in the storage tank reaches a certain liquid level, heating is conducted through the heating device, the grease viscosity is reduced, the water and impurity settling separation effect can be enhanced, then water and impurities at the bottom of the tank are collected through the water and impurity collector, and the water and impurities are discharged through the water and oil discharging device. In other words, according to the large kitchen grease storage tank with the water and impurity separation function, the middle sedimentation link of kitchen grease is omitted, the whole technological process is shortened, operation and maintenance are convenient, and the investment and maintenance cost is greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of restaurant garbage treatment, and in particular relates to a large-scale restaurant kitchen grease storage tank with water-impurity separation function. Background Art

[0002] The oil rich in kitchen waste is a high-quality raw material for making biodiesel, bio-jet fuel and daily chemical products. At present, three-phase centrifuges are commonly used in China for separation and extraction. Due to the limitations of the oil form and the physical properties of the centrifuge, a certain amount of water impurities still remain in the separated kitchen oil. Excessive water impurities affect the quality of the kitchen oil and reduce its utilization value.

[0003] The existing technology generally adds an intermediate sedimentation tank for static sedimentation to effectively separate the residual water and impurities in the cooking oil. The larger the volume of the sedimentation tank and the longer the residence time, the higher the water and impurity removal rate. However, the equipment investment and maintenance costs increase exponentially, and the addition of the intermediate sedimentation link makes the overall process flow longer. Utility Model Content

[0004] The utility model aims to provide a large-scale kitchen grease storage tank with a water-impurity separation function, so as to solve the technical problems of high cost and long process caused by adding an intermediate sedimentation tank for static sedimentation separation to remove residual water and impurities in the kitchen grease in the prior art.

[0005] The present application provides a large-scale kitchen grease storage tank with a water-impurity separation function. The large-scale kitchen grease storage tank with a water-impurity separation function comprises:

[0006] The oil storage tank body has an oil inlet disposed on its side wall;

[0007] The water and impurities collector is installed at the bottom of the oil storage tank;

[0008] A heating device is arranged inside the oil storage tank body and is used to heat the oil in the tank;

[0009] The water-oil discharge device is connected to the water-impurity collector and is used for discharging the water impurities collected by the water-impurity collector.

[0010] In one embodiment of the present application, the water impurity collector comprises:

[0011] The water and impurities collecting manifold is arranged at the bottom of the oil storage tank and is connected to the water and oil discharge device through the water and impurities external discharge main pipe;

[0012] A plurality of water and impurity collecting branch pipes are arranged in an array along the circumference of the water and impurity collecting manifold, and one end of each water and impurity collecting branch pipe is connected to the water and impurity collecting manifold, and the other end is a water inlet.

[0013] In one embodiment of the present application, the water inlet of the water and impurities collecting branch pipe faces the bottom of the tank.

[0014] In one embodiment of the present application, the heating device is arranged above the water impurity collector.

[0015] In one embodiment of the present application, the heating device comprises a steam heating coil;

[0016] The steam inlet valve and the steam outlet valve of the steam heating coil are located outside the oil storage tank.

[0017] In one embodiment of the present application, a strip window is also provided on the side wall of the oil storage tank body for observing the water level in the tank body.

[0018] In one embodiment of the present application, the water-oil discharge device comprises:

[0019] The water and impurities outlet valve, grease delivery pump and water and impurities discharge valve are connected in sequence;

[0020] The water impurities outlet valve is communicated with the water impurities external discharge main pipe.

[0021] In one embodiment of the present application, a water impurity observation mirror is further provided between the water impurity outlet valve and the grease delivery pump.

[0022] In one embodiment of the present application, the water-oil discharge device further comprises:

[0023] Oil delivery valve and oil drain valve;

[0024] The oil outlet valve is located above the water outlet valve and is connected to the inside of the tank and the grease delivery pump;

[0025] The oil discharge valve is connected to the grease delivery pump.

[0026] In one embodiment of the present application, a grease observation mirror is provided between the oil outlet valve and the grease delivery pump; and an exhaust device is provided on the top of the oil storage tank body.

[0027] The beneficial effects of the utility model are:

[0028] The large-scale kitchen grease storage tank with water-impurity separation function of the present application can enhance the effect of water-impurity sedimentation separation by heating the grease in the storage tank through a heating device after the grease reaches a certain liquid level, reducing the viscosity of the grease, and then collecting the water impurities at the bottom of the tank through a water impurity collector, and discharging the water impurities through a water-oil discharge device. In other words, the large-scale kitchen grease storage tank with water-impurity separation function of the present application eliminates the intermediate sedimentation link of the kitchen grease, shortens the overall process flow, facilitates operation and maintenance, and greatly saves investment and maintenance costs.

[0029] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of a large-scale kitchen grease storage tank with water and impurity separation function according to a preferred embodiment of the utility model;

[0033] Figure 2 This is a top view of a water impurity collector of a preferred embodiment of the utility model;

[0034] Figure 3 It is a stereoscopic diagram of a water impurity collector according to a preferred embodiment of the utility model.

[0035] In the figure:

[0036] Oil storage tank body 1-1, exhaust device 1-2, steam heating coil 1-3, water impurity collector 1-4, strip window 1-5, oil inlet 1-6, steam inlet valve 1-7, steam outlet valve 1-8, water impurity outlet valve 1-9, water impurity observation mirror 1-10, oil outlet valve 1-11, grease observation mirror 1-12, grease delivery pump 1-13, water impurity discharge valve 1-14, oil drain valve 1-15, water impurity external discharge main pipe 2-2, water impurity collecting manifold 2-3, water impurity collecting branch pipe 2-4. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Professional terms and explanations:

[0039] Catering waste: food leftovers from restaurants, hotels, company canteens, etc., as well as waste from the processing of fruits, vegetables, meat, oil, pastries, etc. in the kitchen.

[0040] Kitchen grease: fat separated and extracted from kitchen waste.

[0041] Grease tank: A large, sealed container used for the temporary storage of cooking grease.

[0042] The present application provides a large-scale kitchen grease storage tank with water-impurity separation function, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0043] See also Figure 1 In one embodiment of the present application, a large-scale kitchen grease storage tank with a water-impurity separation function includes: an oil tank body 1-1, on the side wall of which an oil inlet 1-6 is provided; a water-impurity collector 1-4, arranged at the bottom of the oil tank body 1-1; a heating device, arranged in the oil tank body 1-1, for heating the grease in the tank; a water-oil discharge device, connected to the water-impurity collector 1-4, for discharging the water and impurities collected by the water-impurity collector 1-4.

[0044] For details, see Figure 2 and Figure 3 The water and impurities collector 1-4 includes: a water and impurities collecting manifold 2-3, which is arranged at the bottom of the oil storage tank body 1-1 and is connected to the water and oil discharge device through a water and impurities external discharge main pipe 2-2; a plurality of water and impurities collecting branch pipes 2-4, which are arranged in a circular array along the water and impurities collecting manifold 2-3, and one end of each water and impurities collecting branch pipe 2-4 is connected to the water and impurities collecting manifold 2-3, and the other end is a water inlet.

[0045] In this embodiment, a plurality of water impurity collecting branch pipes 2-4 are arranged in a circular array along the water impurity collecting manifold 2-3, which can ensure that the working range of the branch pipes radiates the tank bottom to the maximum extent, ensure that the water impurities settled to the tank bottom are discharged thoroughly, uniformly and stably, reduce the residual water impurities in the tank, and avoid the secondary mixing of oil and water caused by interface disturbance due to excessive local flow velocity.

[0046] Preferably, see Figure 3 The water inlet of the water impurity collecting branch pipe 2-4 faces the bottom of the tank, so as to drain the residual water impurities as much as possible.

[0047] Preferably, the heating device is arranged above the water and impurity collector 1-4; it may be located immediately above the water and impurity collector 1-4. The heating device heats the grease to reduce the viscosity of the grease and enhance the effect of water and impurity sedimentation and separation.

[0048] See also Figure 1 Optionally, the heating device includes a steam heating coil 1-3; the steam inlet valve 1-7 and the steam outlet valve 1-8 of the steam heating coil 1-3 are located outside the oil storage tank body 1-1.

[0049] In this embodiment, optionally, a strip window 1-5 is further provided on the side wall of the oil storage tank body 1-1 for observing the water level in the tank body.

[0050] See also Figure 3 Specifically, the water-oil discharge device includes: a water-impurity outlet valve 1-9, a grease delivery pump 1-13 and a water-impurity discharge valve 1-14 connected in sequence; the water-impurity outlet valve 1-9 is connected to the water-impurity external discharge main pipe 2-2.

[0051] Optionally, a water impurity observation mirror 1-10 is also provided between the water impurity outlet valve 1-9 and the grease delivery pump 1-13.

[0052] Specifically, the water-oil discharge device also includes: an oil outlet valve 1-11 and an oil drain valve 1-15; the oil outlet valve 1-11 is located above the water and impurities outlet valve 1-9, and is connected to the inside of the tank and the grease delivery pump 1-13; the oil drain valve 1-15 is connected to the grease delivery pump 1-13.

[0053] Furthermore, a grease observation mirror 1-12 is provided between the oil outlet valve 1-11 and the grease delivery pump 1-13; and an exhaust device 1-2 is provided on the top of the oil storage tank body 1-1.

[0054] In an optional application scenario, the specific working process of a large-scale kitchen grease storage tank with water and impurity separation function is as follows:

[0055] 1. The grease generated by the kitchen waste pretreatment system enters the oil storage tank body 1-1 through the oil inlet 1-6 via the lifting pump for temporary storage;

[0056] 2. When the oil in the storage tank reaches a certain liquid level, open the steam inlet valve 1-7 to heat the oil through the steam heating coil 1-3 to reduce the oil viscosity and enhance the effect of water and impurity sedimentation and separation;

[0057] 3. Observe the oil and water stratification in the tank through the strip window 1-5. When the preset conditions are met, open the water impurity outlet valve 1-9, the water impurity discharge valve 1-14 and the grease delivery pump 1-13 in sequence to discharge the bottom water impurities in the tank; when grease appears in the water impurity observation mirror 1-10, close the grease delivery pump 1-13, the water impurity outlet valve 1-9 and the water impurity discharge valve 1-14 in sequence;

[0058] 4. Repeat steps 1-3 above according to the production of pre-processed grease in the kitchen until the tank is full;

[0059] 5. Open the oil outlet valve 1-11, the oil drain valve 1-15 and the grease delivery pump 1-13 to discharge the grease in the tank.

[0060] In this embodiment, by setting the strip window 1-5 and the water impurity observation mirror 1-10, the opening and closing of each valve can be controlled, so that the rapid discharge of water impurities can be achieved; the discharge of water impurities and grease can also be achieved by sharing the grease delivery pump 1-13.

[0061] In summary, the large-scale kitchen grease storage tank with water-impurity separation function of the utility model eliminates the intermediate sedimentation link of the kitchen grease, shortens the overall process flow, facilitates operation and maintenance, and greatly saves investment and maintenance costs; heating is performed by a heating device to reduce the viscosity of the grease, which can enhance the effect of water-impurity sedimentation and separation, and then the water impurities at the bottom of the tank are collected by a water impurity collector, and the water impurities are discharged by a water-oil discharge device; the unique design of the water impurity collector can ensure that the water impurities settled to the bottom of the tank are discharged thoroughly, uniformly and stably, reduce the residual water impurities in the tank, and also avoid the secondary mixing of oil and water caused by the interface disturbance caused by excessive local flow velocity.

[0062] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0063] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0064] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0065] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A large-scale kitchen grease storage tank with water and impurity separation function, characterized in that: include: An oil storage tank body (1-1) has an oil inlet (1-6) arranged on its side wall; A water and impurity collector (1-4) is arranged at the bottom of the oil storage tank body (1-1); A heating device is arranged in the oil storage tank body (1-1) and is used to heat the oil in the tank; The water-oil discharge device is connected to the water-impurity collector (1-4) and is used to discharge the water impurities collected by the water-impurity collector (1-4).

2. The large-scale kitchen grease storage tank according to claim 1, characterized in that: The water impurity collector (1-4) comprises: A water and impurities collecting manifold (2-3) is arranged at the bottom of the oil storage tank body (1-1) and is connected to a water and oil discharge device via a water and impurities discharge main pipe (2-2); A plurality of water and impurity collecting branch pipes (2-4) are arranged in a circular array along the circumference of the water and impurity collecting confluence tube (2-3), and one end of each water and impurity collecting branch pipe (2-4) is connected to the water and impurity collecting confluence tube (2-3), and the other end is a water inlet.

3. The large-scale kitchen grease storage tank according to claim 2, characterized in that: The water inlet of the water and impurities collecting branch pipe (2-4) faces the bottom of the tank.

4. The large-scale kitchen grease storage tank according to claim 1, characterized in that: The heating device is arranged above the water impurity collector (1-4).

5. The large-scale kitchen grease storage tank according to claim 4, characterized in that: The heating device comprises a steam heating coil (1-3); The steam inlet valve (1-7) and the steam outlet valve (1-8) of the steam heating coil (1-3) are located outside the oil storage tank body (1-1).

6. The large-scale kitchen grease storage tank according to claim 1, characterized in that: A strip window (1-5) is also provided on the side wall of the oil storage tank body (1-1) for observing the water level in the tank body.

7. The large-scale kitchen grease storage tank according to claim 2, characterized in that: The water-oil discharge device comprises: a water-impurity outlet valve (1-9), a grease delivery pump (1-13) and a water-impurity discharge valve (1-14) which are connected in sequence; The water impurities outlet valve (1-9) is in communication with the water impurities discharge main pipe (2-2).

8. The large-scale kitchen grease storage tank according to claim 7, characterized in that: A water and impurities observation mirror (1-10) is also provided between the water and impurities outlet valve (1-9) and the grease delivery pump (1-13).

9. The large-scale kitchen grease storage tank according to claim 7, characterized in that: The water-oil discharge device further comprises: an oil outlet valve (1-11) and an oil discharge valve (1-15); The oil outlet valve (1-11) is located above the water outlet valve (1-9) and is connected to the inside of the tank and the grease delivery pump (1-13); The oil discharge valve (1-15) is connected to the grease delivery pump (1-13).

10. The large-scale kitchen grease storage tank according to claim 9, characterized in that: A grease observation mirror (1-12) is provided between the oil outlet valve (1-11) and the grease delivery pump (1-13); An exhaust device (1-2) is provided on the top of the oil storage tank body (1-1).

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