Liquid fertilizer preparation device based on kitchen waste

Abstract

The utility model relates to the technical field of kitchen waste treatment, and provides a liquid fertilizer preparation device based on kitchen waste, which is used for preparing the kitchen waste into liquid fertilizer and comprises an outer shell, an inner shell arranged on the outer shell and provided with a reaction space, and a plurality of reaction parts arranged in the reaction space. A plurality of grooves are formed in the side wall of the reaction part, the grooves are used for containing composite strains, the kitchen waste and the composite strains react to form liquid fertilizer, and by means of the technical scheme, the problems that in existing kitchen waste composting treatment in the prior art, the occupied area is large, unpleasant odor can be generated during composting, and seasonal limitation exists are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen waste treatment, and specifically, to a device for preparing liquid fertilizer based on kitchen waste. Background Art

[0002] The field of kitchen waste treatment is an important area of environmental management and resource recovery. Kitchen waste mainly comes from food residues or other organic waste generated in places such as families, restaurants, and canteens. Existing methods for treating kitchen waste are diverse, aiming to reduce environmental pollution, improve resource utilization rate, and promote sustainable development.

[0003] Existing kitchen waste treatment mainly uses aerobic composting, but this method has obvious disadvantages: it requires a large area, needs a large site for composting; unpleasant odors are generated during the composting process; there are seasonal limitations, and the composting rate will decrease at lower temperatures, etc. Summary of the Utility Model

[0004] The utility model provides a device for preparing liquid fertilizer based on kitchen waste, which solves the problems in the related art that existing composting treatment of kitchen waste has a large floor area, unpleasant odors are generated during composting, and there are seasonal limitations.

[0005] The technical solution of the utility model is as follows:

[0006] A device for preparing liquid fertilizer based on kitchen waste, used to prepare liquid fertilizer from kitchen waste, includes:

[0007] An outer shell,

[0008] An inner shell, the inner shell is arranged on the outer shell body, and the inner shell has a reaction space.

[0009] Reaction members, there are multiple reaction members, the multiple reaction members are arranged in the reaction space, grooves are formed on the side walls of the reaction members, the grooves are used to place composite strains, and the liquid fertilizer is formed after the reaction of the kitchen waste and the composite strains.

[0010] Optionally, it further includes a stirring device, and the stirring device includes:

[0011] A first rotating rod, the first rotating rod is rotatably arranged in the reaction space.

[0012] Stirring plates, there are multiple stirring plates, one ends of the multiple stirring plates are arranged on the first rotating rod, and the stirring plates are used to stir the kitchen waste.

[0013] Optionally, there is an oxygen space between the outer shell and the inner shell. A plurality of nano-pores are provided at the lower end of the inner shell. The oxygen space and the reaction space are communicated through the plurality of nano-pores. It further includes:

[0014] An aeration device, which is arranged on one side of the outer shell and is communicated with the oxygen space.

[0015] Optionally, it further includes a conveying member, and the conveying member includes:

[0016] A first housing, which has a discharge end, and the discharge end is communicated with the reaction space.

[0017] A second rotating rod, which is rotatably arranged in the first housing.

[0018] A first driving member, which is arranged at one end of the first housing, and the rotating end of the first driving member is connected to the second rotating rod.

[0019] A spiral plate, which is a spiral extension structure and is arranged on the second rotating roller.

[0020] Optionally, the first housing has a feed end, and it further includes a centrifuge, which has a liquid outlet and a first discharge port. The first discharge port is communicated with the feed end, and the liquid outlet is used for discharging the oil and moisture of the food waste.

[0021] Optionally, the centrifuge has a feed port, and it further includes a crushing device, which is used for crushing the food waste. The crushing device includes:

[0022] A second housing, which has a second discharge port, and the second discharge port is communicated with the feed port.

[0023] A plurality of third rotating rods, which are rotatably arranged in the second housing.

[0024] A plurality of second driving members, which are arranged outside the second housing, and the rotating ends of the plurality of second driving members are connected to the third rotating rods.

[0025] A plurality of blades, which are respectively arranged on the third rotating rods at staggered intervals, and the plurality of blades on adjacent two third rotating rods are in contact with each other in sequence.

[0026] Optionally, it further includes a water pump, which is communicated with the second discharge port.

[0027] Optionally, the first housing is provided with a feeding port which communicates with the interior of the first housing and is used for feeding the required nutrients.

[0028] Optionally, it further includes:

[0029] A first pipe which is arranged on the inner housing. A deodorizing cotton is arranged inside the first pipe, and the first pipe communicates with the reaction space.

[0030] A second pipe which is arranged on the outer housing and communicates with the reaction space.

[0031] Optionally, it further includes:

[0032] A display screen which is arranged on the side wall of the outer housing and is used for displaying the pH value, temperature, conductivity and organic matter content in the reaction space.

[0033] The working principle and beneficial effects of the present utility model are as follows:

[0034] In the present utility model, in order to solve the problems in the existing food waste composting treatment in the related art, such as large floor area, unpleasant smell generated during composting and seasonal restrictions, an inner housing is arranged on the outer housing. The inner housing has a closed space structure. A plurality of reaction members are arranged in the reaction space of the inner housing. The reaction members are provided with a plurality of grooves, and a variety of composite strains are stored in the plurality of grooves, including the self-domesticated Bacillus subtilis GN19; a large number of composite strains decompose the food waste to form inorganic substances, that is, liquid fertilizer; the food waste reacts fully with a large number of composite strains, causing the pH value to change from 4.58 (acidic) to pH 7.6 (neutral), meeting the requirements of the water quality acidity and alkalinity of GB5084-2021 (Irrigation Water Quality Standard for Farmland), the COD value drops from 680 mg / L to 80 mg / L, meeting the requirement of <150 mg / L of GB5084-2021 (Irrigation Water Quality Standard for Farmland), and the conductivity rises from 600 uS / cm to 1500 uS / cm, indicating that nutrient elements in ionic form are released in large quantities (NH4 + 、Ca 2+ 、Mg 2+ 、K + 、H2PO4 - , and trace elements). These belong to available nutrients and can partially replace chemical fertilizers. The fully reacted food waste finally discharges from the reaction space of the inner housing in a liquid form and is irrigated onto the fields in need of fertilizer, providing the required nutrients for the fields, and being able to solve the problems in the existing food waste composting treatment in the related art, such as large floor area, unpleasant smell generated during composting and seasonal restrictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the accompanying drawings.

[0036] Figure 1 Structural schematic diagram of the present utility model;

[0037] Figure 2 Structural schematic diagram of the present utility model from another angle;

[0038] Figure 3 Enlarged view of the reaction member of the present utility model;

[0039] Figure 4 Cross-sectional view of the inner shell of the present utility model;

[0040] Figure 5 Structural schematic diagram of the conveying member of the present utility model;

[0041] Figure 6 Top view of the structure of the present utility model;

[0042] Figure 7 Cross-sectional view of the crushing device of the present utility model.

[0043] In the figure: 1. Outer shell, 2. Inner shell, 3. Reaction space, 4. Reaction member, 401. Groove, 5. Stirring device, 501. First rotating rod, 502. Stirring plate, 6. Oxygen space, 201. Nano pores, 7. Aeration device, 8. Conveying member, 801. First housing, 802. Discharge end, 803. Second rotating rod, 804. First driving member, 805. Spiral plate, 806. Feeding end, 9. Centrifuge, 901. Liquid outlet, 902. First discharge port, 903. Feeding port, 10. Crushing device, 1001. Second housing, 1002. Second discharge port, 1003. Third rotating rod, 1004. Second driving member, 1005. Blade, 11. Water pump, 807. Feeding port, 12. First pipeline, 13. Deodorizing cotton, 14. Second pipeline, 15. Display screen. Specific embodiments

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings and other embodiments can be obtained.

[0045] To simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one" but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0046] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0047] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0048] Refer to Figures 1 to 7 , which is the first embodiment of the present utility model. A liquid fertilizer preparation device based on food waste is proposed, which is used to prepare food waste into liquid fertilizer. It includes a housing 1, an inner housing 2 is arranged on the housing 1, the inner housing 2 has a reaction space 3, there are multiple reaction members 4, the multiple reaction members 4 are arranged in the reaction space 3, and a plurality of grooves 401 are formed on the side wall of the reaction member 4. The grooves 401 are used to place composite strains, and the food waste and the composite strains react to form liquid fertilizer.

[0049] In this embodiment, in order to solve the problems in the prior art of existing food waste composting treatment, such as large floor area, unpleasant smell during composting, and seasonal restrictions, an inner housing 2 is arranged on the housing 1. The inner housing 2 is a closed space structure. A plurality of reaction members 4 are arranged in the reaction space 3 of the inner housing 2. A plurality of grooves 401 are formed on the reaction member 4, and a variety of composite strains are stored in the plurality of grooves 401, including the self-domesticated Bacillus subtilis GN19; a large number of composite strains decompose the food waste to form inorganic substances, that is, liquid fertilizer; the food waste reacts fully with a large number of composite strains to make the pH value change from 4.58 (acidic) to pH value 7.6 (neutral), meeting the requirements of the water quality acidity and alkalinity of GB5084 - 2021 (Quality Standards for Agricultural Irrigation Water), the COD value drops from 680 mg / L to 80 mg / L, meeting the requirement of <150 mg / L of GB5084 - 2021 (Quality Standards for Agricultural Irrigation Water), and the conductivity rises from 600 uS / cm to 1500 uS / cm, indicating that nutrient elements in ionic form are released in large amounts (NH4+ 、 Ca 2+ 、 Mg 2+ 、 K + 、 H2PO4 - , and trace elements), these belong to quickly available nutrients and can partially replace chemical fertilizers. The fully reacted food waste finally discharges from the reaction space 3 of the inner shell 2 in a liquid form and is irrigated onto the fields in need of fertilizers to provide the required nutrients for the fields, which can solve the problems in the related art that the existing food waste composting treatment has a large floor area, produces unpleasant odors during composting, and has seasonal limitations.

[0050] Furthermore, it further includes a stirring device 5. The stirring device 5 includes a first rotating rod 501 which is rotatably arranged in the reaction space 3. There are multiple stirring plates 502. One ends of the multiple stirring plates 502 are arranged on the first rotating rod 501, and the stirring plates 502 are used for stirring the food waste.

[0051] In this embodiment, in order to make the food waste and the strains in the reaction member 4 react fully, a stirring device 5 is provided. A first rotating rod 501 is arranged in the reaction space 3, and multiple stirring plates 502 are installed on the first rotating rod 501. When the food waste enters the reaction space 3, the first rotating rod 501 starts to rotate, driving the stirring plates 502 to rotate in the reaction space 3 to stir the food waste. At this time, more food waste and strains can react, which can reduce the reaction time and decompose the food waste into liquid fertilizer faster.

[0052] Furthermore, there is an oxygen space 6 between the outer shell 1 and the inner shell 2. Multiple nano pores 201 are opened at the lower end of the inner shell 2. The oxygen space 6 and the reaction space 3 are communicated through the multiple nano pores 201. It further includes an aeration device 7. The aeration device 7 is arranged on one side of the outer shell 1, and the aeration device is communicated with the oxygen space 6.

[0053] In this embodiment, in order to provide the oxygen required for the reaction of the strains, an aeration device 7 is provided. The aeration device 7 can push air into the oxygen space 6 between the outer shell 1 and the inner shell 2. When the strains and the food waste react, the reaction space 3 is in a negative pressure state. At this time, because the reaction space 3 and the oxygen space 6 are communicated through the nano pores 201, the reaction space 3 can extract air from the oxygen space 6 to provide the required oxygen for the reaction.

[0054] Further, it further includes a conveyor 8. The conveyor 8 includes a first housing 801. The first housing 801 has a discharge end 802. The discharge end 802 communicates with the reaction space 3. A second rotating rod 803 is rotatably arranged in the first housing 801. A first driving member 804 is arranged at one end of the first housing 801. The rotating end of the first driving member 804 is connected to the second rotating rod 803. The spiral plate 805 is a spiral extension structure. The spiral plate 805 is arranged on the second rotating rod 803.

[0055] In this embodiment, a conveyor 8 is provided to convey food waste into the reaction space 3. A first driving member 804 is arranged outside the first housing 801. A second rotating rod 803 is arranged in the first housing 1. The rotating end of the first driving member 804 is connected to the second rotating rod 803. The first driving member 804 can drive the second rotating rod 803 to rotate. A spiral plate 805 with a spiral extension is arranged on the side wall of the second rotating rod 803. When the food waste enters the first housing 801, the first driving member 804 drives the second rotating rod 803 to rotate. Then the spiral plate 805 will push the food waste towards the discharge end 802 and then drop into the reaction space 3.

[0056] Further, the first housing 801 has a feed end 806. It further includes a centrifuge 9. The centrifuge 9 has a liquid outlet 901 and a first discharge port 902. The first discharge port 902 communicates with the feed end 806. The liquid outlet 901 is used to discharge the oil and moisture of the food waste.

[0057] In this embodiment, in order to separate the oil of the food waste, a centrifuge 9 is provided. When the food waste enters the centrifuge 9, the oil and other liquids of the food waste are separated by high-speed rotation inside the centrifuge 9. Then the liquid is discharged through the liquid outlet 901, and the solid food waste is discharged through the first discharge port 902 and enters the conveyor 8 from the feed end 806.

[0058] Further, the centrifuge 9 has a feed port 903. It further includes a crushing device 10. The crushing device 10 is used to crush the food waste. The crushing device 10 includes a second housing 1001. The second housing 1001 has a second discharge port 1002. The second discharge port 1002 communicates with the feed port 903. There are multiple third rotating rods 1003. The multiple third rotating rods 1003 are rotatably arranged in the second housing 1001. There are multiple second driving members 1004. The multiple second driving members 1004 are arranged outside the second housing 1001. The rotating ends of the multiple second driving members 1004 are connected to the third rotating rods 1003. There are multiple blades 1005. The multiple blades 1005 are respectively arranged on the third rotating rods 1003 at staggered intervals. The multiple blades 1005 on two adjacent third rotating rods 1003 are in contact with each other in sequence.

[0059] In this embodiment, a crushing device 10 is provided to crush food waste into particles for convenient separation of grease by the centrifuge 9. A plurality of second driving members 1004 are arranged outside the second housing 1001, and a plurality of third rotating rods 1003 are arranged inside the second housing 1001. The rotating ends of the second driving members 1004 are connected to the third rotating rods 1003. A plurality of blades 1005 are arranged on each third rotating rod 1003. When the food waste enters the second housing 1001, the plurality of second driving members 1004 drive the plurality of third rotating rods 1003 to rotate, and the plurality of blades 1005 on the plurality of third rotating rods 1003 rotate, capable of cutting the food waste into particles, and finally discharging through the second discharge port 1002 at the lower part of the second housing 1001 and entering the feed port 903 of the centrifuge 9 for the operation of separating grease.

[0060] Furthermore, a water pump 11 is further included, and the water pump 11 is communicated with the second discharge port 1002.

[0061] In this embodiment, the second discharge port 1002 and the feed port 903 are connected by a pipeline. To prevent blockage, a water pump 11 is provided. The water output of the water pump 11 flushes the particulate food waste into the centrifuge 9, and the water output of the water pump 11 will wash the salt of the food waste, making the food waste after centrifugation more in line with the reaction conditions.

[0062] Furthermore, the first housing 801 is provided with a feeding port 807, and the feeding port 807 is communicated with the inside of the first housing 801, and the feeding port 807 is used for feeding the required nutrients.

[0063] In this embodiment, since the elements required by the land in different regions are somewhat different, it is difficult for a single type of fertilizer to meet the needs of different lands. By providing a feeding port 807 outside the first housing 801, it is possible to specifically add the nutrient elements required by plants such as nitrogen, phosphorus, potassium, calcium, magnesium, and zinc according to different lands.

[0064] Furthermore, a first pipeline 12 is further included. The first pipeline 12 is arranged on the inner shell 2, and a deodorizing cotton 13 is arranged inside the first pipeline 12. The first pipeline 12 is communicated with the reaction space 3. A second pipeline 14 is arranged on the outer shell 1, and the second pipeline 14 is communicated with the reaction space 3.

[0065] In this embodiment, there is a pressure difference during the reaction process in the reaction space 3. To balance the pressure, a first pipeline 12 is provided for exhausting gas, and a deodorizing cotton 13 is arranged inside the first pipeline 12 to prevent the exhausted gas from being too smelly and affecting the air quality; when the food waste in the reaction space 3 is fully reacted into liquid fertilizer, it is discharged from the second pipeline 14, and a filter screen is added in the second pipeline 14 to prevent the unreacted food waste from being discharged together with the reacted liquid fertilizer.

[0066] Furthermore, it further includes a display screen 15, which is arranged on the side wall of the outer shell 1 and is used to display the pH value, temperature, conductivity and organic matter content in the reaction space 3.

[0067] In this embodiment, a display screen 15 is arranged on the outer shell 1 to detect the pH value, temperature, conductivity and organic matter content in the reaction space 3, and the condition of the kitchen waste reaction can be observed according to the values.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A liquid fertilizer preparation device based on kitchen waste, characterized in that: Used to prepare food waste into liquid fertilizer, including: Housing (1), An inner shell (2), the inner shell (2) being arranged on the outer shell (1), the inner shell (2) having a reaction space (3), A reaction piece (4), wherein the reaction piece (4) comprises a plurality of reaction pieces (4), the plurality of reaction pieces (4) being arranged in the reaction space (3), the side wall of the reaction piece (4) being provided with a plurality of grooves (401), the grooves (401) being used to place composite bacteria, the liquid fertilizer being formed after the kitchen waste reacts with the composite bacteria.

2. The liquid fertilizer preparation device based on kitchen waste according to claim 1 is characterized in that: The invention also comprises a stirring device (5), wherein the stirring device (5) comprises: a first rotating roller (501), the first rotating roller (501) being rotatably disposed in the reaction space (3); A stirring plate (502), wherein the stirring plates (502) are multiple, and one end of the multiple stirring plates (502) is arranged on the first rotating rod (501), and the stirring plates (502) are used to stir the food waste.

3. The liquid fertilizer preparation device based on kitchen waste according to claim 2 is characterized in that: An oxygen space (6) is present between the outer shell (1) and the inner shell (2); a plurality of nanopores (201) are provided at the lower end of the inner shell (2); the oxygen space (6) and the reaction space (3) are connected via the plurality of nanopores (201); and the method further comprises: An aeration device (7), wherein the aeration device is arranged on one side of the outer shell (1), and the aeration device (7) is connected to the oxygen space (6).

4. The liquid fertilizer preparation device based on kitchen waste according to claim 1, characterized in that: It also includes a conveying member (8), wherein the conveying member (8) includes: A first shell (801), wherein the first shell (801) has a discharge end (802), and the discharge end (802) is connected to the reaction space (3). a second rotating rod (803), the second rotating rod (803) being rotatably disposed in the first shell (801), a first driving member (804), wherein the first driving member (804) is disposed at one end of the first housing (801), and a rotating end of the first driving member (804) is connected to the second rotating rod (803); The spiral plate (805) is a spiral extension structure, and the spiral plate (805) is arranged on the second rotating rod (803).

5. The liquid fertilizer preparation device based on kitchen waste according to claim 4, characterized in that: The first shell (801) has a feed end (806) and also includes a centrifuge (9), the centrifuge (9) having a liquid outlet (901) and a first outlet (902), the first outlet (902) being connected to the feed end (806), and the liquid outlet (901) being used to discharge the kitchen waste grease and moisture.

6. The liquid fertilizer preparation device based on kitchen waste according to claim 5, characterized in that: The centrifuge (9) has a feed port (903) and also includes a pulverizing device (10). The pulverizing device (10) is used to pulverize the food waste. The pulverizing device (10) includes: A second shell (1001), wherein the second shell (1001) has a second discharge port (1002), and the second discharge port (1002) is connected to the feed port (903). a third rotating rod (1003), the third rotating rod (1003) comprising a plurality of third rotating rods (1003), the plurality of third rotating rods (1003) being rotatably disposed in the second housing (1001); a second driving member (1004), wherein the second driving member (1004) has a plurality of members, the plurality of second driving members (1004) are arranged outside the second shell (1001), and the rotation ends of the plurality of second driving members (1004) are connected to the third rotating rod (1003). The blade (1005) has a plurality of blades (1005), and the plurality of blades (1005) are respectively arranged on the third rotating roller (1003) at intervals and in a staggered manner, and the plurality of blades (1005) on two adjacent third rotating rollers (1003) abut against each other in sequence.

7. The liquid fertilizer preparation device based on kitchen waste according to claim 6, characterized in that: It also includes a water pump (11), wherein the water pump (11) is in communication with the second discharge port (1002).

8. The liquid fertilizer preparation device based on kitchen waste according to claim 4, characterized in that: The first shell (801) is provided with a feeding port (807), the feeding port (807) being connected to the interior of the first shell (801), and the feeding port (807) is used to feed required nutrients.

9. The liquid fertilizer preparation device based on kitchen waste according to claim 2, characterized in that: Also includes: a first pipe (12), the first pipe (12) being arranged on the inner shell (2), a deodorizing cotton (13) being arranged inside the first pipe (12), the first pipe (12) being connected to the reaction space (3), A second pipe (14), wherein the second pipe (14) is arranged on the housing (1), and the second pipe (14) is connected to the reaction space (3).

10. The liquid fertilizer preparation device based on kitchen waste according to claim 1, characterized in that: Also includes: A display screen (15), wherein the display screen (15) is arranged on a side wall of the housing (1), and the display screen (15) is used to display the pH value, temperature, conductivity and organic matter content in the reaction space (3).

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