A high-efficiency fermentation treatment device for kitchen waste

Abstract

The utility model discloses a kitchen garbage efficient fermentation treatment device in the field of kitchen garbage recycling and processing, including jar body, the jar body includes side wall board, and the upper and lower both ends of side wall board are correspondingly equipped with top cover and base respectively, the inside of jar body is rotatablely provided with vertical rotation axis no.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen waste recycling and treatment, and specifically relates to a high-efficiency fermentation treatment device for kitchen waste. Background Technology

[0002] Anaerobic fermentation is currently the most important technology for large-scale, industrialized treatment of food waste. The core principle of anaerobic fermentation is that, under anaerobic or hypoxic conditions, various anaerobic microorganisms decompose organic matter, ultimately producing biogas (mainly methane), digestate, and digestate residue. Anaerobic fermentation mainly consists of three stages: hydrolysis and acidification, hydrogen and acetic acid production, and methanogenesis. In the methanogenesis stage, methanogenic bacteria utilize acetic acid, hydrogen, and carbon dioxide to produce methane.

[0003] Most current food waste fermentation equipment uses a single-station mixing process, resulting in uneven mixing of organic matter and low fermentation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency fermentation treatment device for kitchen waste, which can ensure that the organic matter inside the tank is mixed evenly and improve the fermentation treatment efficiency of kitchen waste.

[0005] The purpose of this utility model is achieved as follows: A high-efficiency fermentation treatment device for kitchen waste includes a tank, the tank including side panels, with a top cover and a base respectively at the upper and lower ends of the side panels. A vertical rotating shaft I and a rotating shaft II are rotatably arranged inside the tank, each equipped with a stirring mechanism. A drive housing is provided on the top cover corresponding to the rotating shaft I and rotating shaft II, and a bearing seat I and a bearing seat II are respectively provided inside the drive housing. The upper ends of the rotating shaft I and rotating shaft II pass through the top cover and extend into the drive housing. The rotating shaft I and rotating shaft II are rotatably connected to the bearing seat I and bearing seat II respectively. A gear II is fitted on the upper end of the rotating shaft II, and a gear I is fitted on the rotating shaft I. The gear I and gear II mesh with each other. The upper end of the rotating shaft I extends out of the drive housing. A drive motor is provided on the top of the drive housing, with the output end of the drive motor facing downwards and connected to the extended end of the rotating shaft I.

[0006] In operation, this invention involves adding raw materials into the tank through two feed inlets. Hot steam is introduced into the tank through steam pipes on both sides to raise the temperature and facilitate thorough mixing of the materials. Chemicals are added through the dosing port on the top cover. A geared motor drives a rotating shaft to rotate, which in turn drives a second rotating shaft via a gear pair. Multiple stirring blades on the two rotating shafts thoroughly stir and mix the materials inside the tank, ensuring a complete reaction. The generated gas is discharged through the exhaust port, and the remaining reactants are discharged through the outlet. Compared to existing technologies, this invention offers the following advantages: it uses two rotating shafts in a dual-station configuration to drive the mixing of raw materials, and simultaneously adds materials into the tank through both feed inlets, increasing the efficiency of feeding and mixing; it ensures uniform mixing of organic matter inside the tank, improving the fermentation efficiency of kitchen waste.

[0007] As a further improvement of this utility model, the stirring mechanism includes several stirring components arranged at equal intervals from top to bottom on a rotating shaft one or a rotating shaft two. Each stirring component includes three stirring blades evenly distributed circumferentially on the rotating shaft one or the rotating shaft two. Each stirring component mixes and stirs the raw materials entering the tank through at least three stirring blades.

[0008] As a further improvement of this invention, the stirring blades on the first and second rotating shafts are staggered in the height direction. The staggered stirring blades on the two rotating shafts ensure more uniform mixing of the materials.

[0009] As a further improvement of this utility model, the top cover is provided with two feed inlets, located on the left and right sides of the drive box respectively. The top cover also has a dosing port and an exhaust port, and the lower right side of the side panel has a discharge port. Both sides of the side panel are arc-shaped. Adding raw materials through the two feed inlets achieves more efficient mixing of the raw materials.

[0010] As a further improvement of this utility model, the exhaust port is cylindrical, with an inner step on the inner wall of the cylindrical exhaust port. A filter cylinder is installed on the inner step, and an outer step on the outer periphery of the filter cylinder is supported on the inner step. The bottom of the filter cylinder has multiple filter holes, and activated carbon packing is placed inside the filter cylinder. A cylinder cover is provided at the top of the filter cylinder. The activated carbon inside the filter cylinder can adsorb and deodorize.

[0011] As a further improvement of this utility model, the base is provided with several support feet on its lower side.

[0012] As a further improvement of this utility model, heating components are provided on both the left and right sides of the side panel. Each heating component includes a vertical steam pipe with several branch pipes on its side. Each branch pipe is connected to the side panel and communicates with the inside of the tank. A one-way valve is installed inside each branch pipe. The upper end of the steam pipe is closed, and the lower end is connected to a steam generator to supply hot steam. The one-way valve prevents raw materials from overflowing from the tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a top view of the tank.

[0015] Figure 3 This is a top view of each stirring blade on the rotating shaft.

[0016] Figure 4 This is a cross-sectional view of the filter cartridge inside the exhaust port.

[0017] The components include: 1. Tank body, 1a. Side panel, 1b. Top cover, 1c. Base, 2. Rotary shaft one, 3. Rotary shaft two, 4. Drive box, 5. Bearing seat one, 6. Bearing seat two, 7. Gear one, 8. Gear two, 9. Drive motor, 10. Stirring blades, 11. Feed inlet, 12. Dosing port, 13. Exhaust port, 13a. Inner step, 14. Filter cylinder, 14a. Outer step, 15. Filter holes, 16. Activated carbon packing, 17. Cylinder cover, 18. Support feet, 19. Steam pipe, 20. Branch pipe, 21. Check valve, 22. Discharge port. Detailed Implementation

[0018] like Figure 1-4As shown, a high-efficiency fermentation treatment device for kitchen waste includes a tank 1. The tank 1 includes a side panel 1a, and a top cover 1b and a base 1c are respectively provided at the upper and lower ends of the side panel 1a. Several support feet 18 are provided on the lower side of the base 1c. Vertical rotating shaft 1 2 and rotating shaft 2 3 are rotatably arranged inside the tank 1. Both rotating shaft 1 2 and rotating shaft 2 3 are equipped with a stirring mechanism. The stirring mechanism includes several stirring components arranged at equal intervals from top to bottom on rotating shaft 1 or rotating shaft 2. Each stirring component includes three stirring blades 10 evenly distributed circumferentially on rotating shaft 1 or rotating shaft 2. Each stirring component mixes and stirs the raw materials entering the tank 1 through at least three stirring blades 10. The stirring blades 10 on rotating shaft 1 and rotating shaft 2 are staggered in the height direction. The staggered stirring blades 10 on the two rotating shafts ensure more uniform mixing of the materials. A drive housing 4 is installed on the top cover 1b corresponding to rotating shaft 1 2 and rotating shaft 2 3. Bearing housing 1 5 and bearing housing 2 6 are installed inside the drive housing 4. The upper ends of rotating shaft 1 2 and rotating shaft 2 3 pass through the top cover 1b and extend into the drive housing 4. Rotating shaft 1 2 and rotating shaft 2 3 are rotatably connected to bearing housing 1 5 and bearing housing 2 6, respectively. Gear 2 8 is fitted onto the upper end of rotating shaft 2 3, and gear 1 7 is fitted onto rotating shaft 1 2. Gear 1 7 meshes with gear 2 8. The upper end of rotating shaft 1 2 extends out of the drive housing 4. A drive motor 9 is installed on the top of the drive housing 4. The output end of the drive motor 9 faces downwards and is connected to the extended end of rotating shaft 1 2.

[0019] The top cover 1b has two feed inlets 11, located on the left and right sides of the drive box 4, respectively. The top cover 1b also has a dosing port 12 and an exhaust port 13. The lower right side of the side panel 1a has an outlet 22, and both sides of the side panel 1a are arc-shaped. Raw materials are added through the two feed inlets 11, achieving more efficient mixing. The exhaust port 13 is cylindrical, with an inner step 13a on its inner wall. A filter cylinder 14 is mounted on the inner step 13a, and the outer step 14a of the filter cylinder 14 is supported by the inner step 13a. The bottom of the filter cylinder 14 has multiple filter holes 15, and the inside of the filter cylinder 14 contains activated carbon packing 16. The upper end of the filter cylinder 14 has a cap 17. The activated carbon inside the filter cylinder 14 can adsorb and deodorize.

[0020] Heating components are provided on both the left and right sides of the side panel 1a. Each heating component includes a vertical steam pipe 19, and several branch pipes 20 are provided on the side of the steam pipe 19. Each branch pipe 20 is connected to the side panel 1a and communicates with the interior of the tank body 1. A one-way valve 21 is provided inside the branch pipe 20. The upper end of the steam pipe 19 is closed, and the lower end of the steam pipe 19 is connected to a steam generating device to supply hot steam to the steam pipe 19.

[0021] In operation, this invention adds raw materials to the tank 1 through two feed inlets 11. Hot steam is introduced into the tank 1 through steam pipes 19 on both sides to raise the temperature and facilitate thorough mixing of the raw materials. Chemicals are added to the tank 1 through the dosing port 12 on the top cover 1b. Then, a geared motor drives a rotating shaft 2 to rotate, which in turn drives a second rotating shaft 3 via a gear pair. Multiple stirring blades 10 on the two rotating shafts thoroughly stir and mix the raw materials inside the tank 1, ensuring a complete reaction. The generated gas is discharged through the exhaust port 13, and the remaining reacted material is discharged through the outlet 22. The advantages of this invention are: the use of two rotating shafts in a dual-station configuration drives the mixing of raw materials evenly, and the simultaneous addition of raw materials to the tank 1 through the feed inlets 11 on both sides increases the efficiency of feeding and mixing; it ensures uniform mixing of organic matter inside the tank 1, improving the fermentation efficiency of kitchen waste.

[0022] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A high-efficiency fermentation treatment device for kitchen waste, characterized in that, The device includes a tank body, which includes side panels. A top cover and a base are respectively located at the upper and lower ends of the side panels. Two vertical rotating shafts, a first and a second, are rotatably mounted inside the tank body. Both rotating shafts have stirring mechanisms. A drive housing is mounted on the top cover corresponding to rotating shafts one and two. Bearing seats one and two are correspondingly mounted inside the drive housing. The upper ends of rotating shafts one and two pass through the top cover and extend into the drive housing. Rotating shafts one and two are rotatably connected to bearing seats one and two, respectively. A gear two is fitted onto the upper end of rotating shaft two, and a gear one is fitted onto rotating shaft one. Gear one and gear two mesh with each other. The upper end of rotating shaft one extends out of the drive housing. A drive motor is located on the top of the drive housing, with its output end facing downwards and connected to the extended end of rotating shaft one.

2. The high-efficiency fermentation treatment device for kitchen waste according to claim 1, characterized in that, The stirring mechanism includes several stirring components arranged at equal intervals from top to bottom on rotating shaft one or rotating shaft two. Each stirring component includes three stirring blades evenly distributed circumferentially on rotating shaft one or rotating shaft two.

3. The high-efficiency fermentation treatment device for kitchen waste according to claim 2, characterized in that, The stirring blades on the first and second rotating shafts are staggered in the height direction.

4. A high-efficiency fermentation treatment device for kitchen waste according to any one of claims 1-3, characterized in that, The top cover is provided with two feed inlets, which are located on the left and right sides of the drive box respectively. The top cover is also provided with a dosing port and an exhaust port. The lower right side of the side panel is provided with a discharge port. Both sides of the side panel are arc-shaped.

5. The high-efficiency fermentation treatment device for kitchen waste according to claim 4, characterized in that, The exhaust port is cylindrical, with an inner step on the inner wall of the cylindrical exhaust port. A filter cylinder is installed on the inner step, and an outer step on the outer periphery of the filter cylinder is supported on the inner step. The bottom of the filter cylinder has multiple filter holes, and the inside of the filter cylinder is filled with activated carbon packing. The upper end of the filter cylinder is covered with a cylinder cover.

6. A high-efficiency fermentation treatment device for kitchen waste according to any one of claims 1-3, characterized in that, The base has several support feet on its underside.

7. A high-efficiency fermentation treatment device for kitchen waste according to any one of claims 1-3, characterized in that, Heating components are provided on both the left and right sides of the side panel. The heating components include vertical steam pipes with several branch pipes on the side. Each branch pipe is connected to the side panel and communicates with the inside of the tank. A one-way valve is provided inside the branch pipe.

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