Device for preparing organic water-soluble fertilizer from kitchen waste pressure filtrate

Abstract

The utility model discloses a device for preparing an organic water-soluble fertilizer from kitchen waste pressure filtrate. The device comprises an oil-water separator, an alkaline hydrolysis tank, an acidolysis tank, a mixing and regulating tank and a centrifugal machine, the oil-water separator is used for carrying out grease separation on the injected kitchen waste pressure filtrate and respectively introducing the filtrate into the alkaline hydrolysis tank and the acidolysis tank; alkali liquor is added into the alkaline hydrolysis tank and is used for treating residual grease, protein and colloidal protein in the filtrate; acid liquor is added into the acidolysis tank and is used for treating starch and cellulose in the filtrate; the mixing and regulating tank is used for mixing the alkaline hydrolysis filtrate and the acidolysis filtrate separated in the alkaline hydrolysis tank and the acidolysis tank and regulating the pH value; the centrifugal machine is used for centrifuging the mixed solution and carrying out solid-liquid separation to obtain the supernatant organic water-soluble fertilizer. According to the kitchen waste pressure filtrate treatment device formed by the structural combination, the purpose of preparing organic water-soluble fertilizer by using kitchen waste as raw materials can be achieved, and the resource utilization rate and the economic value of kitchen waste pressure filtrate are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage treatment equipment technical field, specifically, relate to a kind of organic water-soluble fertilizer's device prepared by kitchen garbage press liquor. BACKGROUND

[0002] Kitchen garbage usually belongs to high water content, and is often extruded in transit link to reduce the amount, and a large amount of press liquor is generated, which contains rich organic acids, proteins, oils and fats and sugar (starch, cellulose) components, and is not effectively treated / utilized by being directly discharged for a long time. If this high-concentration organic wastewater is treated by using the traditional treatment process, not only the treatment cycle is long, but also the original system stability is easily damaged, and a large amount of biogas is generated in the anaerobic or anoxic tank, which causes safety hazards. In addition, the traditional treatment method for standard discharge has very low utilization rate of organic nutrients and mineral elements in the press liquor, resulting in great waste of resources.

[0003] Due to the rich organic components such as organic acids, proteins and oils in the press liquor, the physical (microwave, heating) and chemical (catalysis, reaction) methods are used to decompose them into small molecules of sugar (monosaccharide, disaccharide, oligosaccharide), alcohol (ethanol, propanol and aldehyde), organic acid (acetic acid, propionic acid, amino acid), humic acid (fulvic acid) and other organic nutrients, which can be directly absorbed and utilized by plants for agricultural production. Not only the disposal problem is solved properly, but also the utilization rate and economic value are greatly improved, and the material cycle of farmland→agricultural products→kitchen waste→fertilizer→farmland is realized.

[0004] Therefore, it is necessary to develop a disposal method and equipment with higher comprehensive utilization rate.

[0005] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0006] The utility model discloses to solve above prior art problem, provide a kind of organic water-soluble fertilizer's device prepared by kitchen garbage press liquor, can realize with kitchen garbage as raw material preparation organic water-soluble fertilizer, effectively improve the resource utilization rate and economic value of kitchen garbage press liquor.

[0007] The utility model discloses the following technical scheme realizes:

[0008] An organic water-soluble fertilizer's device prepared by kitchen garbage press liquor, comprising an oil-water separator, an alkaline hydrolysis tank, an acid hydrolysis tank, a mixing adjustment tank and a centrifugal machine.

[0009] The oil-water separator is used for separating oils and fats from the injected kitchen garbage press liquor, and the filtrate is respectively introduced into the alkaline hydrolysis tank and the acid hydrolysis tank.

[0010] Alkaline solution is added to the alkaline hydrolysis tank for treating residual oils and fats, proteins and colloidal proteins in the filtrate.

[0011] The acid solution is added into the acidolysis tank for treating the starch and cellulose in the filtrate;

[0012] The mixing and pH adjusting tank is used for mixing the alkaline hydrolysis filtrate and the acid hydrolysis filtrate separated from the alkaline hydrolysis tank and the acid hydrolysis tank and adjusting the pH value;

[0013] The centrifugal machine is used for centrifuging the mixed solution to obtain the supernatant organic water-soluble fertilizer.

[0014] The kitchen waste pressure filtration liquid treatment equipment, after the kitchen waste pressure filtration is introduced into the oil-water separator, coarse grease (temporary storage or sale) and kitchen waste filtrate are obtained through separation, then the kitchen waste filtrate is respectively transported to an alkaline hydrolysis tank (for treating residual grease, protein and colloidal protein) and an acid hydrolysis tank (for treating starch and cellulose), and alkali and acid are added into the alkaline hydrolysis tank and the acid hydrolysis tank, and the pH values are respectively adjusted to about 12 and 2, then heating reaction / catalysis is carried out, after the reaction is completed, the tank body can be cooled in the form of heat exchange; then the reaction liquid is subjected to solid-liquid separation, the solid phase part is exchanged and added into another reaction tank to continue treatment with subsequent filtrate, and the liquid phase part is mixed with each other and adjusted to about pH 9 (for treating residual grease in the acid hydrolysis tank), finally, the supernatant is separated out through centrifugal separation and used as organic water-soluble fertilizer, and the filter mud can be transported out for disposal.

[0015] The kitchen waste pressure filtration liquid treatment device is formed through the above structure combination, the purpose of preparing organic water-soluble fertilizer by taking kitchen waste as raw material can be achieved, and the resource utilization rate and economic value of the kitchen waste pressure filtration liquid are effectively improved.

[0016] In a specific embodiment, a double-stage membrane ionizer is further included, and the double-stage membrane ionizer is used for decomposing the input potassium phosphate or dipotassium hydrogen phosphate into potassium hydroxide and phosphoric acid.

[0017] The potassium hydroxide is added into the alkaline hydrolysis tank as alkali;

[0018] The phosphoric acid is added into the acid hydrolysis tank as acid.

[0019] Since the acid solution and the alkali required by the acidolysis and the alkaline hydrolysis raw materials are dangerous chemicals, direct purchase has a high risk in the raw material storage and use process, therefore, the double-stage membrane ionizer is arranged in the utility model, potassium phosphate or dipotassium hydrogen phosphate is taken as raw material to produce potassium hydroxide and phosphoric acid, and the potassium hydroxide and the phosphoric acid are directly used for acidolysis and alkaline hydrolysis, thereby avoiding the purchase and storage of dangerous chemicals, and effectively achieving the purpose of producing organic water-soluble fertilizer by using kitchen waste pressure filtration liquid.

[0020] In a specific embodiment, an alkali storage tank and an acid storage tank connected with the double-stage membrane ionizer are further included, the alkali storage tank is connected with the alkaline hydrolysis tank, and the acid storage tank is connected with the acid hydrolysis tank.

[0021] The alkali storage tank and the acid storage tank can be used for respectively storing the alkali and the acid after the two-stage membrane ionizer produces the alkali and the acid, and subsequent use is facilitated.

[0022] In an embodiment, pH meters are arranged in the alkali lysis tank, the acid lysis tank and the mixing adjustment tank.

[0023] In an embodiment, heating devices are arranged in the alkali lysis tank and the acid lysis tank.

[0024] In an embodiment, the oil-water separator is provided with a kitchen waste pressure filter liquid inlet at the top and a coarse grease collection outlet at the sidewall.

[0025] In an embodiment, the mixing adjustment tank is provided with an adjusting agent feeding port.

[0026] In an embodiment, the two-stage membrane ionizer is provided with a water inlet and a potassium phosphate or di-potassium hydrogen phosphate feeding port.

[0027] In an embodiment, the device further comprises a primary product temporary storage tank and a filling device connected to the centrifuge in sequence.

[0028] In an embodiment, the centrifuge is a two-phase centrifuge.

[0029] Compared with the prior art, the device has the following advantages and beneficial effects:

[0030] 1. The device for preparing organic water-soluble fertilizer from kitchen waste pressure filter liquid can separate coarse grease and kitchen waste filter liquid after the kitchen waste pressure filter liquid is introduced into the oil-water separator, then the kitchen waste filter liquid is transported to the alkali lysis tank and the acid lysis tank for treatment, and then the reaction liquid is subjected to solid-liquid separation, the liquid phase is mixed and the pH is adjusted, and finally the supernatant is separated by centrifugation to obtain the organic water-soluble fertilizer.

[0031] 2. The device for preparing organic water-soluble fertilizer from kitchen waste pressure filter liquid can combine multiple devices to form a kitchen waste pressure filter liquid treatment device, so that the kitchen waste pressure filter liquid can be used as raw material to prepare the organic water-soluble fertilizer, and the resource utilization rate and economic value of the kitchen waste pressure filter liquid are effectively improved.

[0032] 3. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor, which is characterized in that the device comprises a double-stage membrane ionizer, and potassium phosphate or dipotassium hydrogen phosphate is used as raw material to produce potassium hydroxide and phosphoric acid for acidolysis and alkaline hydrolysis, thereby avoiding the purchase and storage of dangerous chemicals and achieving the purpose of producing organic water-soluble fertilizer from kitchen waste filter liquor. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the example embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Fig. 1 The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor provided by the present application is shown in the structural diagram.

[0035] Fig. 2 The working flowchart of the device for preparing organic water-soluble fertilizer from kitchen waste filter liquor provided by the present application is shown.

[0036] Fig. 3 The effect diagram of the kitchen waste filter liquor after treatment provided by the present application is shown.

[0037] The marks in the drawings and the corresponding names of parts are as follows:

[0038] 1 - oil-water separator, 2 - alkaline hydrolysis tank, 3 - acidolysis tank, 4 - mixing and adjusting tank, 5 - centrifuge, 6 - double-stage membrane ionizer, 7 - alkali storage tank, 8 - acid storage tank, 9 - primary product temporary storage tank, 10 - filling equipment, 11 - kitchen waste filter liquor inlet, 12 - crude oil collection outlet, 13 - adjusting agent feeding port, 14 - water inlet, 15 - potassium phosphate or dipotassium hydrogen phosphate feeding port. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with examples and drawings. The illustrative embodiments and their descriptions are only used to explain the present application, and should not be regarded as a limitation on the present application.

[0040] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without necessarily employing these specific details. In other embodiments, in order to avoid obscuring the present application, well-known structures are not specifically described.

[0041] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0043] Example 1

[0044] like Figs. 1-3 As shown in the figure, the device for preparing organic water-soluble fertilizer from kitchen waste filtrate provided in this embodiment of the present invention includes an oil-water separator 1, an alkaline hydrolysis tank 2, an acid hydrolysis tank 3, a mixing and conditioning tank 4, and a centrifuge 5;

[0045] The oil-water separator 1 is used to separate the oil from the injected kitchen waste filtrate, and the filtrate is passed into the alkaline hydrolysis tank 2 and the acid hydrolysis tank 3 respectively.

[0046] Alkaline solution is added to the alkaline hydrolysis tank 2 to treat residual oil, protein and colloidal protein in the filtrate;

[0047] Acid solution is added to the acid hydrolysis tank 3 to treat the starch and cellulose in the filtrate;

[0048] The mixing and conditioning tank 4 is used to mix the alkaline hydrolysis filtrate and acid hydrolysis filtrate separated in the alkaline hydrolysis tank 2 and the acid hydrolysis tank 3 and to adjust the pH value.

[0049] The centrifuge 5 is used to centrifuge the mixture to separate the solid and liquid components and obtain the supernatant organic water-soluble fertilizer.

[0050] The kitchen waste pressure filtration liquid treatment equipment is used for treating the kitchen waste pressure filtration liquid, and the kitchen waste pressure filtration liquid is obtained after the kitchen waste is filtered by the kitchen waste pressure filter, and the kitchen waste pressure filtration liquid is treated by the kitchen waste pressure filtration liquid treatment equipment.

[0051] The kitchen waste pressure filtration liquid treatment device is formed by the above structure combination, the organic water-soluble fertilizer can be prepared by using the kitchen waste as raw material, and the resource utilization rate and the economic value of the kitchen waste pressure filtration liquid are effectively improved.

[0052] In a specific embodiment, a two-stage membrane ionizer 6 is further included, and the two-stage membrane ionizer 6 is used for decomposing the potassium phosphate or the potassium hydrogen phosphate into potassium hydroxide and phosphoric acid;

[0053] The potassium hydroxide is added into the alkali lysis tank 2 as alkali solution;

[0054] The phosphoric acid is added into the acid lysis tank 3 as acid solution.

[0055] Since the acid solution and the alkali solution required by the raw materials of acid lysis and alkali lysis are both dangerous chemicals, and direct purchase has a great risk in the process of raw material storage and use, the two-stage membrane ionizer is arranged in the utility model, and the potassium hydroxide and the phosphoric acid are directly used for acid lysis and alkali lysis by decomposing the potassium phosphate or the potassium hydrogen phosphate as raw material, so that the purchase and storage of dangerous chemicals are avoided, and the purpose of producing the organic water-soluble fertilizer by using the kitchen waste pressure filtration liquid is effectively achieved.

[0056] In a specific embodiment, an alkali storage tank 7 and an acid storage tank 8 connected with the two-stage membrane ionizer 6 are further included, the alkali storage tank 7 is connected with the alkali lysis tank 2, and the acid storage tank 8 is connected with the acid lysis tank 3.

[0057] The alkali solution and the acid solution produced by the two-stage membrane ionizer can be respectively stored by the alkali storage tank and the acid storage tank, so that the subsequent use is facilitated.

[0058] In a specific embodiment, pH meters are arranged in the alkali lysis tank 2, the acid lysis tank 3 and the mixing adjustment tank 4, and are used for detecting the pH values of the liquids in the alkali lysis tank, the acid lysis tank and the mixing adjustment tank at any time.

[0059] In a specific embodiment, heating devices are arranged in the alkali lysis tank 2 and the acid lysis tank 3. The heating devices are arranged to heat the solution in the tank to achieve acid lysis and alkali lysis of the pressure filtrate through heating reaction / catalysis.

[0060] In a specific embodiment, the oil-water separator 1 is provided with a kitchen pressure filtrate inlet 11 at the top and a coarse grease collection outlet 12 at the side wall.

[0061] In a specific embodiment, the mixing and adjusting tank 4 is provided with an adjusting agent feeding port 13.

[0062] In a specific embodiment, the two-stage membrane ionizer 6 is provided with a water inlet 14 and a potassium phosphate or dihydrogen potassium phosphate feeding port 15.

[0063] In a specific embodiment, the centrifuge 5 is further connected with a primary product temporary storage tank 9 and a filling device 10. The supernatant after centrifugation can be stored in the primary product temporary storage tank and then filled by the filling device.

[0064] In a specific embodiment, the centrifuge is a two-phase centrifuge.

[0065] The above specific embodiments further explain the purpose, technical solutions and advantages of the present application. It should be understood that the above description is only for specific embodiments of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for preparing organic water-soluble fertilizer from kitchen waste filter liquor, characterized in that, The oil-water separator (1), the alkali lysis tank (2), the acid lysis tank (3), the mixing adjustment tank (4) and the centrifuge (5) are included. The oil-water separator (1) is used for separating grease from the injected kitchen waste filter liquor, and the filter liquor is respectively introduced into the alkali lysis tank (2) and the acid lysis tank (3). The alkali lysis tank (2) is used for adding alkali liquor to treat residual grease, protein and colloidal protein in the filter liquor. The acid lysis tank (3) is used for adding acid liquor to treat starch and cellulose in the filter liquor. The mixing adjustment tank (4) is used for mixing and adjusting the pH value of the alkali lysis filter liquor and the acid lysis filter liquor separated from the alkali lysis tank (2) and the acid lysis tank (3). The centrifuge (5) is used for centrifuging the mixed liquor to obtain supernatant organic water-soluble fertilizer.

2. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The double-stage membrane ionizer (6) is further included, which is used for decomposing the input potassium phosphate or dipotassium hydrogen phosphate into potassium hydroxide and phosphoric acid. The potassium hydroxide is added into the alkali lysis tank (2) as alkali liquor. The phosphoric acid is added into the acid lysis tank (3) as acid liquor.

3. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 2, characterized in that, The alkali storage tank (7) and the acid storage tank (8) connected with the double-stage membrane ionizer (6) are further included. The alkali storage tank (7) is connected with the alkali lysis tank (2). The acid storage tank (8) is connected with the acid lysis tank (3).

4. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The pH meter is arranged in the alkali lysis tank (2), the acid lysis tank (3) and the mixing adjustment tank (4).

5. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The heating equipment is arranged in the alkali lysis tank (2) and the acid lysis tank (3).

6. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The kitchen waste filter liquor inlet (11) is arranged on the top of the oil-water separator (1), and the coarse grease collection outlet (12) is arranged on the side wall.

7. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The adjusting agent feeding port (13) is arranged on the mixing adjustment tank (4).

8. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 2, characterized in that, The water inlet (14) and the potassium phosphate or dipotassium hydrogen phosphate feeding port (15) are arranged on the double-stage membrane ionizer (6).

9. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 1, characterized in that, The primary product temporary storage tank (9) and the filling equipment (10) connected with the centrifuge (5) in sequence are further included.

10. The device for preparing organic water-soluble fertilizer from kitchen waste filter liquor according to claim 2, characterized in that, The centrifuge is a two-phase centrifuge.

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