High-value utilization device for kitchen garbage

Abstract

The invention provides a kitchen garbage high-value utilization device, which comprises a feeding mechanism, a treatment mechanism and a moving mechanism, the feeding mechanism is arranged at the top of the treatment mechanism, the treatment mechanism is communicated with the feeding mechanism, and the moving mechanism is arranged at the bottom of the treatment mechanism. The device is mainly used for tempering separation and multi-stage utilization of kitchen or kitchen garbage, the collected kitchen garbage enters the feeding mechanism to be crushed and then is diluted, tempered and quickly layered in the treatment mechanism, the uppermost layer of material in the treatment mechanism is a grease layer containing part of suspended solids, the middle layer of material is a slurry layer suitable for anaerobic fermentation, and the middle layer of material in the treatment mechanism is a slurry layer suitable for anaerobic fermentation. The bottom-layer material is a coarse material layer suitable for protein extraction, and finally, deep recycling high-value treatment can be performed on different types of materials at an outlet of a treatment mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste utilization, and in particular to a kitchen waste high-value utilization device. Background Art

[0002] The biomass resources that can be used for anaerobic fermentation in my country mainly include crop straw, livestock and poultry manure, agricultural product processing residues, fruit and vegetable residues, organic domestic waste (kitchen waste / perishable waste), industrial organic wastewater, etc. At present, the total amount of waste resources that can be used for biogas production in the country is about 11.17 billion tons, of which agricultural and rural organic waste is about 4.27 billion tons; urban organic waste is about 360 million tons; industrial organic wastewater is about 6.54 billion tons. The total biogas production potential of waste can reach 500 billion cubic meters, and the carbon emission reduction potential can reach 960 million tons.

[0003] If a large amount of organic waste is not effectively treated, it will cause serious pollution to the environment. As a typical distributed energy production technology, biogas technology is an important way to treat organic waste. At present, the biogas technologies commonly used in my country are wet fermentation technology and dry fermentation technology. The former mainly includes completely mixed anaerobic digestion (CSTR), plug flow anaerobic reaction (HCPF), upflow anaerobic solid reaction (USR), upflow anaerobic sludge blanket (UASB), anaerobic filter (AF) and upflow anaerobic composite bed (UBF); the latter mainly includes German Bekon, Bioferm and GICON processes, French SPI garage and VALORGA processes, Belgian Dranco process, Swedish Kompogas process and Finnish BioGTSO process.

[0004] After my country began to implement classified delivery and collection of domestic waste, the classified disposal method has not been well promoted. The classified domestic waste, among which kitchen waste contains a large amount of easily degradable organic matter, will produce a large amount of odor and leachate if it is not properly disposed of in the short term, and there will also be bad environmental phenomena such as mosquitoes and flies gathering. In addition, although kitchen waste is classified organic domestic waste, it will inevitably contain some impurities. The traditional wet anaerobic fermentation will produce a large amount of sewage, and the system will be seriously worn out. The subsequent solid-liquid separation is extremely difficult and the cost is extremely high. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a device for high-value utilization of kitchen waste, which is mainly used for conditioning, separation and multi-stage utilization of restaurant or kitchen waste.

[0006] The present invention provides a device for high-value utilization of kitchen waste, comprising a feeding mechanism, a processing mechanism and a moving mechanism, wherein the feeding mechanism is arranged on the top of the processing mechanism, and the processing mechanism is connected with the feeding mechanism, and the moving mechanism is arranged on the bottom of the processing mechanism.

[0007] Preferably, the feeding mechanism comprises a feeding hopper and a crusher, and the crusher is located at the bottom of the feeding hopper.

[0008] Preferably, the crusher is a double-shaft crusher or a multi-shaft crusher.

[0009] Preferably, the feed hopper is arranged in a conical shape, and the cross-sectional area of ​​one end of the feed hopper away from the processing mechanism is larger than the cross-sectional area of ​​the connecting end of the feed hopper and the processing mechanism.

[0010] Preferably, the processing mechanism comprises a grease area, a slurry area and a slurry area, and a water inlet and a stirrer are provided in the slurry area.

[0011] Preferably, the grease area is provided with an oil outlet.

[0012] Preferably, the slurry zone is provided with a slurry outlet.

[0013] Preferably, the slurry area is provided with slag outlets, and the slag outlets are arranged on both sides of the slurry area.

[0014] Preferably, the agitator is arranged on the side wall of the slurry zone, and a plurality of the agitators are arranged at different height positions in the slurry zone.

[0015] Preferably, the moving mechanism comprises a bearing pulley, and the bearing pulley is symmetrically arranged at the bottom of the processing mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the collected kitchen waste is crushed after entering the feeding mechanism, and then diluted, tempered and quickly stratified in the processing mechanism. The uppermost layer of material in the processing mechanism is a fat layer containing some suspended matter, the middle layer of material is a slurry layer suitable for anaerobic fermentation, and the bottom layer of material is a coarse material layer suitable for protein extraction. Finally, different types of materials at the outlet of the processing mechanism can be deeply processed for resource utilization and high value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a front cross-section of a device for high-value utilization of kitchen waste according to an embodiment of the present invention;

[0019] Figure 2 This is a plan view of the feeding mechanism of the device for high-value utilization of kitchen waste according to an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1: Feed hopper; 2: Crusher; 3: Slag outlet; 4: Oil outlet; 5: Slurry outlet; 6: Water inlet; 7: Load-bearing pulley; 8: Grease area; 9: Slurry area; 10: Slag slurry area; 11: Agitator. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 and Figure 2As shown, the present invention provides a high-value utilization device for kitchen waste, including a feeding mechanism, a processing mechanism and a moving mechanism. The feeding mechanism is arranged on the top of the processing mechanism, and the processing mechanism is connected with the feeding mechanism, and the moving mechanism is arranged on the bottom of the processing mechanism. Kitchen waste enters the processing mechanism through the feeding mechanism. The device can be set to be fixed or mobile according to the processing capacity of the processing mechanism. If the processing capacity of the processing mechanism is small, the moving mechanism can be arranged at the bottom of the device to realize the free movement and positioning function.

[0026] In some preferred embodiments, the feeding mechanism comprises a feeding hopper 1 and a crusher 2, wherein the crusher 2 is located at the bottom of the feeding hopper 1. The crusher 2 is a double-shaft crusher or a multi-shaft crusher. The feeding hopper 1 is arranged in a conical shape, and the material falls into the top of the crusher 2 through the inclined surface. The cross-sectional area of ​​the end of the feeding hopper 1 away from the processing mechanism is larger than the cross-sectional area of ​​the end where the feeding hopper 1 is connected to the processing mechanism.

[0027] In some preferred embodiments, the processing mechanism includes a grease area 8, a slurry area 9 and a slurry area 10, and the slurry area 9 is provided with a water inlet 6 and an agitator 11. The grease area 8 is provided with an oil outlet 4; the slurry area 9 is provided with a slurry outlet 5; the slurry area 10 is provided with a slag outlet 3, and the slag outlets 3 are provided on both sides of the slurry area 10.

[0028] In some preferred embodiments, the agitator 11 is disposed on a side wall of the slurry zone 9 , and a plurality of the agitators 11 are disposed at different height positions of the slurry zone 9 .

[0029] In some preferred embodiments, the moving mechanism comprises a load-bearing pulley 7, and the load-bearing pulley 7 is symmetrically arranged at the bottom of the processing mechanism.

[0030] The working principle of the present invention is as follows: restaurant kitchen waste or kitchen waste is first poured into a feed hopper 1 through a loading machine or a lifting device, a crusher 2 is arranged at the bottom of the feed hopper 1 to crush the waste for pre-treatment, and then the waste falls into the treatment mechanism by its own gravity, and at this time, high-temperature hot water is added into the treatment mechanism through the water inlet 6, and after reaching the set moisture content, the agitator 11 is started to stir the mixed material at a high speed, and after reaching the set stirring intensity, the plastic and oil-like lighter substances will float to the oil area 8, and the materials mainly composed of degradable organic matter will stay in the slurry area 9, and other heavy substances will fall into the slurry area 11, and each material area is respectively provided with different discharge ports, including an oil outlet 4 using a spiral discharge, which mainly outputs oil containing some suspended matter to the outside, and can subsequently produce industrial oil after impurity removal; the slurry outlet 5 mainly outputs relatively uniform degradable slurry to the outside, and can subsequently directly enter the anaerobic fermentation section to produce biogas; the slag outlet 3 is arranged on both sides, and mainly outputs slurry containing a large amount of protein to the outside, and can subsequently produce high value-added protein products after extraction.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A kitchen waste high-value utilization device, characterized in that: The invention comprises a feeding mechanism, a processing mechanism and a moving mechanism. The feeding mechanism is arranged on the top of the processing mechanism, and the processing mechanism is connected with the feeding mechanism. The moving mechanism is arranged on the bottom of the processing mechanism.

2. The kitchen waste high-value utilization device according to claim 1, characterized in that: The feeding mechanism comprises a feeding hopper (1) and a crusher (2), wherein the crusher (2) is located at the bottom of the feeding hopper (1).

3. The kitchen waste high-value utilization device according to claim 2, characterized in that: The crusher (2) is a double-shaft crusher or a multi-shaft crusher.

4. The kitchen waste high-value utilization device according to claim 1, characterized in that: The feed hopper (1) is arranged in a conical shape, and the cross-sectional area of ​​the end of the feed hopper (1) away from the processing mechanism is larger than the cross-sectional area of ​​the end where the feed hopper (1) is connected to the processing mechanism.

5. The kitchen waste high-value utilization device according to claim 1, characterized in that: The processing mechanism comprises a grease area (8), a slurry area (9) and a slurry area (10), and the slurry area (9) is provided with a water inlet (6) and a stirrer (11).

6. The kitchen waste high-value utilization device according to claim 5, characterized in that: The grease area (8) is provided with an oil outlet (4).

7. The kitchen waste high-value utilization device according to claim 5, characterized in that: The slurry zone (9) is provided with a slurry outlet (5).

8. The kitchen waste high-value utilization device according to claim 5, characterized in that: The slurry area (10) is provided with a slag outlet (3), and the slag outlet (3) is arranged on both sides of the slurry area (10).

9. The kitchen waste high-value utilization device according to claim 5, characterized in that: The agitator (11) is arranged on the side wall of the slurry zone (9), and a plurality of the agitators (11) are arranged at different height positions of the slurry zone (9).

10. The kitchen waste high-value utilization device according to claim 1, characterized in that: The moving mechanism comprises a load-bearing pulley (7), and the load-bearing pulley (7) is symmetrically arranged at the bottom of the processing mechanism.

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