CN110713916A - An organic waste treatment fermenter - Google Patents

Abstract

The invention discloses an organic waste treatment fermentation tank, comprising an inner tank and an outer tank; a cooling water pipe is wound between the inner tank and the outer tank; one end of the cooling water pipe is connected with a water outlet pipe, and the other end is connected with a water inlet pipe; The water discharge pipe is installed with a water discharge valve; the top of the fermentation tank is formed with a feeding port, and the bottom is formed with a discharge port; a hollow rotating shaft is installed in the fermentation tank, and a hollow stirring blade is installed on the hollow rotating shaft; the hollow rotating shaft and the hollow stirring The leaves are communicated and a plurality of through holes are communicated with the inner cavity; a passive gear is installed on the hollow rotating shaft, the passive gear is meshed with a driving gear, and the driving gear is connected with a rotating motor. The present invention sterilizes the domestic garbage and dries part of the moisture before fermenting, preventing harmful pathogens from accumulating in the biological fertilizer, and at the same time quickly mixing the bacteria with the domestic garbage through the hollow rotating shaft and the stirring blade. Its pH is adjusted to ensure the efficiency and effect of fermentation.

Description

An organic waste treatment fermenter

Technical field:

The invention relates to a garbage disposal device, in particular to an organic garbage disposal fermentation tank

Background technique:

The domestic waste landfill refers to the artificial anti-seepage membrane used to treat and dispose of urban domestic waste, with an artificial anti-seepage membrane to prevent the leakage of landfill leachate, with leachate treatment or pretreatment facilities and equipment, operation, management and maintenance, final Closing down the garbage disposal sites that meet the hygienic requirements. At present, the landfill of domestic waste is still the most important way to solve the problem of domestic waste in most cities in my country. Urban and rural domestic garbage is currently undergoing garbage classification, and anaerobic decomposition of garbage is often used for organic garbage. The objects of its treatment include: garbage composed of degradable organic matter with high moisture content and perishable, including kitchen waste, waste wood, waste cotton and waste cotton fabrics, etc. Most of the pollution of garbage comes from this, and the resources contained in it are combustible gas and post-fermentation plant fertilizers.

Since the anaerobic decomposable garbage in the organic garbage is rich in protein, lipid and sugar compounds, under normal temperature conditions, NH3, H2S and harmful hydrocarbon gases will be generated during the process of microbial decomposition of organic matter, with obvious odor and Toxic, directly harmful to the human body. The garbage dump is a breeding place for mosquitoes, flies, rats and insects, and is the source of infection for malaria, schistosomiasis, Japanese encephalitis, cholera, dysentery, typhoid fever, hepatitis, plague, leptospirosis, and blood-sucking disease. Garbage is piled up at will, and C02 and CH4 and toxic gas H2S will be produced due to biological action, and it will also lead to explosion accidents. Harmful substances in garbage continuously pollute the air, soil and water bodies, and then use air, soil, water bodies, and food as media or carriers to intrude the attached hazardous substances into the human body and damage human health. Therefore, the use of fermenter inoculation treatment is an important means. .

In addition, there are the following problems:

1. In the process of organic waste treatment by the fermenter method, in order to improve the fermentation efficiency, it is necessary to carry out inoculation fermentation. However, in the process of garbage transfer, organic garbage has already begun to ferment and deteriorate, often carrying harmful bacteria, resulting in inoculated bacteria unable to reproduce effectively, resulting in inoculation failure or reduced effectiveness. Due to the existence of harmful bacteria, malodorous gas is generated.

2. Domestic wastes often carry harmful pathogens, and some harmful pathogens will not lose their activity during the fermentation process, resulting in the harmful bacterial load index and hygiene safety in the bio-fertilizer produced by fermentation cannot meet the standards.

3. The water content of domestic waste is relatively high, and it is often necessary to appropriately reduce the water content before fermentation to improve the processing efficiency of the fermentation space.

Invention content:

The object of the present invention is to provide a method and system for treating organic domestic waste. The present invention sterilizes the domestic waste and dries part of the water before fermenting, preventing harmful pathogens from accumulating in the biological fertilizer, and simultaneously passing through the hollow space. The rotating shaft and stirring blade quickly mix the bacteria with domestic waste and adjust its pH, which ensures the efficiency and effect of fermentation.

In order to solve the above-mentioned problems, the technical scheme of the present invention is: .

An organic waste treatment fermentation tank, comprising an inner tank and an outer tank; a cooling water pipe is wound between the inner tank and the outer tank; one end of the cooling water pipe is connected with a water outlet pipe, and the other end is connected with a tap water pipe; A water discharge valve is installed on the water pipe; a feeding port is formed on the top of the fermentation tank, and a discharging port is formed at the bottom; a hollow rotating shaft is installed in the fermenting tank, and a hollow stirring blade is installed on the hollow rotating shaft; The hollow shaft is connected with a number of through holes; a passive gear is installed on the hollow rotating shaft, the passive gear is meshed with a driving gear, and the driving gear is connected with a rotating motor; the hollow rotating shaft is connected with a strain tank and an acid adjusting tank through the feeding main pipe.

In a further improvement, a cooking tank is connected to the top of the fermentation tank; a steam heating pipe is wound in the cooking tank, and a steam pot is connected to the air inlet pipe of the steam heating pipe.

A further improvement, a cooling tank is installed between the cooking tank and the fermentation tank, a cooling coil is wound on the cooling tank, the cooling coil is connected with the water outlet pipe, and the water outlet pipe is connected with the steam boiler, and the recovered heat is used for the preheating of the steam boiler water. .

A further improvement includes a dehydration device installed at the bottom of the fermentation tank.

A further improvement includes that the dehydration device includes a centrifugal drum, the centrifugal drum includes a plane portion of the ground portion, the outer periphery of the plane portion is connected with a separation portion inclined upward, and a number of filter holes are formed on the separation portion; the top of the separation portion is connected with a vertical ring part; the vertical thickness of the vertical ring part is .-cm; the separation part is surrounded by an inner casing, and the inner casing is connected with a water outlet pipe; a blocking ring is installed above the vertical ring part, and the blocking ring is connected with an outer casing, A dry material discharge port is formed at the bottom of the outer casing; a centrifugal motor is connected to the flat surface, and the centrifugal motor is connected to the inner casing through a support rod.

Description of drawings:

FIG. 1 is a schematic structural diagram of an organic domestic waste treatment system.

Detailed ways:

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application.

Example 1

An organic waste treatment system, comprising a cooking tank 1, a fermentation tank 2 connected to the cooking tank 1, and a dehydration device 3 installed at the bottom of the fermentation tank 2; The gas pipe 12 is connected with the steam boiler 9, and the first air pump 7 is installed on the air inlet pipe 12; the gas outlet pipe 13 of the steam heating pipe 11 is connected with a heating coil 14, and the heating coil 14 is wound in the outer shell 38 of the dehydration device 3; heating The coil 14 is communicated with the steam boiler 9 through the return pipe 15, and the first gas-liquid pump 8 is installed on the return pipe 15; the air compressor 17 is installed on the air outlet pipe 13. The interior of the cooking tank 1 is communicated with the air outlet pipe 13 through the steam pipe 114; A heating stove 18 is installed at the bottom of the steam boiler 9 ; the heating stove 18 is respectively connected with the fermentation tank 2 and the natural gas pipeline 19 ; the steam boiler 9 is connected with a tap water pipe 204 .

The fermentation tank 2 includes an inner tank 201 and an outer tank 202; a cooling water pipe 203 is wound between the inner tank 201 and the outer tank 202; one end of the cooling water pipe 203 is connected to a water outlet pipe 210, and the other end is connected to a tap water pipe 204; The water discharge pipe 205 is provided with a water discharge valve 206; both the cooking tank 1 and the fermentation tank 2 are formed with a feeding port 207 at the top and a discharging port 208 at the bottom.

A cooling tank 6 is installed between the cooking tank 1 and the fermentation tank 2, a cooling coil 61 is wound around the cooling tank 6, and the cooling water pipe 203 communicates with the water outlet pipe 210 through the cooling coil 61.

The fermentation tank 2 is connected with a strain tank 4 and an acid adjusting tank 5 .

A hollow rotating shaft 21 is installed in the fermentation tank 2, and a hollow stirring blade 22 is installed on the hollow rotating shaft 21; The tank 5 is connected with a feeding manifold 25; the feeding manifold 25 is axially connected with the hollow rotating shaft 21 through a bearing; a passive gear 26 is installed on the hollow rotating shaft 21, the passive gear 26 is meshed with a driving gear 27, and the driving gear 27 is connected with a rotating motor 20 .

The dehydration device 3 includes a centrifugal drum 31. The centrifugal drum 31 includes a flat surface portion 32 on the ground. The outer periphery of the flat surface portion 32 is connected with a separation portion 33 that is inclined upward. The separation portion 33 is formed with a number of filter holes; the top of the separation portion 33 A vertical ring portion 34 is connected; the vertical thickness of the vertical ring portion 34 is 0.5-2cm; There is a blocking ring 37 connected with an outer casing 38 , and a dry material discharge port 39 is formed at the bottom of the outer casing 38 ;

The use method of the above-mentioned organic waste treatment fermentation tank is as follows:

Step 1. Put the household garbage into the cooking tank 1;

Step 2, heating the cooker 18 to heat the steam pot 9 to generate steam to heat the cooking tank 1, so that the temperature in the cooking tank 1 reaches above 80°C, and sterilizes for more than 30 minutes;

Step 3, open the discharge port 208, the sterilized domestic garbage enters the cooling tank 6, and is cooled by the cooling water pipe 203 outside the cooling tank 6, and the cooling water pipe 203 enters the steam boiler 9 after absorbing heat and heating up;

Step 4, open the discharge port of the cooling tank 6, so that the domestic waste after cooling enters the fermentation tank 2, and then the bacterial culture tank 4 quickly enters the bacterial classification tank 4 through the through holes 24 on the hollow rotating shaft 21 and the hollow stirring blade 22. , and quickly mix with the domestic waste through the stirring of the hollow stirring blade 22 for fermentation; the pH sensor senses the pH of the fermentation during fermentation, and quickly mixes the lye into the fermentation through the acid regulating tank 5, the hollow rotating shaft 21 and the hollow stirring blade 22. everywhere in the tank; the biogas produced by fermentation is transported to the heating stove 18 as fuel;

Step 5: Open the discharge port of the fermentation tank 2, and the fermented domestic garbage enters the centrifugal drum 31 for centrifugal separation; wherein the water is thrown out from the filter hole of the separation part 33 and enters the water outlet pipe 36 of the inner shell 35 to flow out; After the material is thrown to the vertical ring portion 34 for accumulation and extrusion, it is simultaneously heated and dried by the heating coil 14 to dry the remaining water, and then gradually thrown out, enters the outer casing 38 and leaks out from the dry material discharge port 39 .

Dry material is used as fertilizer.

The above-mentioned embodiment is only a specific embodiment of the present invention, and is not intended to be a limitation of the present invention, and any simple improvements and replacements made thereto are within the protection scope of the present invention.

Claims (5)

1. An organic waste treatment fermentation tank, which is characterized by comprising an inner tank (201) and an outer tank (202); a cooling water pipe (203) is wound between the inner tank (201) and the outer tank (202); one end of the cooling water pipe (203) is communicated with the water outlet pipe (210), and the other end is communicated with the water inlet pipe (204); the water outlet pipe (210) is also communicated with a water discharge pipe (205), and a water discharge valve (206) is arranged on the water discharge pipe (205); a feeding port (207) is formed at the top of the fermentation tank (2), and discharging ports (208) are formed at the bottom of the fermentation tank; a hollow rotating shaft (21) is arranged in the fermentation tank (2), and a hollow stirring blade (22) is arranged on the hollow rotating shaft (21); the hollow rotating shaft (21) is communicated with the hollow stirring blade (22), and an inner cavity (23) inside the hollow rotating shaft is communicated with a plurality of through holes (24); a driven gear (26) is arranged on the hollow rotating shaft (21), the driven gear (26) is meshed with a driving gear (27), and the driving gear (27) is connected with a rotating motor (20); the hollow rotating shaft (21) is communicated with a strain tank (4) and an acid adjusting tank (5) through a feeding main pipe (25).

2. An organic waste treatment fermentation tank according to claim 1, characterized in that the top of the fermentation tank (2) is communicated with a cooking tank (1); a steam heating pipe (11) is wound in the cooking pot (1), and an air inlet pipe (12) of the steam heating pipe (11) is communicated with a steam pot (9).

3. The fermentation tank for organic garbage disposal according to claim 1, wherein a cooling tank (6) is installed between the cooking tank (1) and the fermentation tank (2), a cooling coil (61) is wound on the cooling tank (6), and the cooling coil (61) is communicated with the water outlet pipe (210).

4. An organic waste treatment fermenter according to claim 1, wherein a dewatering device (3) is installed at the bottom of the fermenter (2).

5. A fermenter according to claim 4, wherein the dewatering device (3) comprises a centrifuge drum (31), the centrifuge drum (31) comprises a planar portion (32) of the ground, a separation portion (33) is connected to the periphery of the planar portion (32) and is arranged to be inclined upwards, and a plurality of filter holes are formed on the separation portion (33); the top of the separating part (33) is connected with a vertical ring part (34); the vertical thickness of the vertical ring part (34) is 0.5-2 cm; an inner shell (35) is surrounded outside the separation part (33), and the inner shell (35) is communicated with a water outlet pipe (36); a baffle ring (37) is arranged above the vertical ring part (34), the baffle ring (37) is connected with an outer shell (38), and a dry material discharge hole (39) is formed at the bottom of the outer shell (38); the plane part (32) is connected with a centrifugal motor (310), and the centrifugal motor (310) is connected with the inner shell (35) through a support rod (311).

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