CN113909277B - Kitchen waste treatment device capable of recycling and reusing resources and treatment method - Google Patents

Abstract

The invention relates to a kitchen waste treatment device and treatment method which can be recycled and reused. It comprises an upper tank body and a lower tank body. The feed port, the bottom of the lower tank body is provided with a discharge port, also includes a stirring mechanism, the stirring mechanism is arranged in the lower tank body; the garbage disposal mechanism, the garbage disposal mechanism is used to convert the kitchen waste processed by the stirring mechanism into nutrient solution, garbage The processing device includes a reaction box, an agitator, a sawdust medium and bacteria, and the agitator is arranged in the garbage disposal machine for mixing kitchen waste, wood chips and bacteria. The crushing motor of the present invention drives the crushing shaft to rotate to crush the kitchen waste. The stirring mechanism of the lower box is used to stir the kitchen waste crushed by the primary crushing mechanism. The seeds are evenly mixed and fermented to produce volatile fatty acids as available nutrient solution.

Description

Recyclable and reusable kitchen waste treatment device and treatment method

technical field

The invention relates to the technical field of garbage treatment, in particular to a kitchen waste treatment device and treatment method that can be recycled and reused.

Background technique

With the acceleration of my country's urbanization process and the improvement of residents' living standards, the food waste generated by residents' daily life, food processing, catering services, and public canteens continues to increase. For the treatment and disposal of kitchen waste, the more traditional methods include composting, landfilling and incineration, but these methods cannot achieve the goal of reducing, harmless and recycling food waste.

In order to solve the disadvantages of traditional methods, kitchen waste disposers have been widely used in production and use, but many kitchen waste disposers are only crushed by pulverizers and then directly discharged through sewer pipes, which not only cannot reduce the amount of food waste, Harmless and resourceful, it will also pollute water bodies and the atmosphere.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides a kitchen waste treatment device and treatment method that can be recycled and reused. The kitchen waste is hydrolyzed and acidified to produce volatile fatty acids, which can be used as a nutrient solution for flower fertilizers, and can also be used Add carbon source outside the sewage treatment plant.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a kitchen waste treatment device that can be recycled and reused, comprising an upper tank body and a lower tank body, the upper tank body is provided with a primary crushing mechanism for crushing kitchen waste , the upper part of the upper tank is provided with a feed port, and the bottom of the lower tank is provided with a discharge port, which also includes:

Stirring mechanism, the stirring mechanism is arranged in the lower box, and is used to stir the kitchen waste that falls on the bottom of the lower box and is crushed by the primary crushing mechanism;

The garbage disposal mechanism is used to convert the kitchen waste processed by the mixing mechanism into a nutrient solution. The garbage disposal device includes a reaction box, an agitator, a sawdust medium, and bacteria. The agitator is set in the garbage disposal machine. For mixing kitchen waste, sawdust media and bacteria.

Kitchen waste needs to be manually sorted to remove metal, glass and plastic products, so as to avoid damage to the primary crushing mechanism and mixing mechanism. The primary crushing mechanism includes a crushing motor and a crushing shaft. The crushing motor is fixed on the upper end cover of the upper tank. There is a hole in the upper end cover, and the motor shaft of the crushing motor passes through the hole in the upper end cover. One end of the motor shaft is connected to the crushing shaft through a coupling. There are multiple crushing knives on the crushing shaft. The crushing motor drives the crushing shaft to rotate and drives the crushing shaft. Primary crushing of kitchen waste entering from the feed port.

The broken kitchen waste falls into the lower box, and the stirring mechanism of the lower box is used to stir the kitchen waste crushed by the primary crushing mechanism; after stirring, open the discharge port at the lower end of the lower box, and carry out stirring and fermentation through the garbage disposal device , stir for 1 min, stir to make tap water, kitchen waste, chaff medium, and strains evenly mixed, and then let it stand for fermentation for 24 hours. The sawdust medium is placed inside the mixer. Guaranteed to carry a large number of bacteria, to ensure the fermentation of kitchen waste, as an available nutrient solution, the nutrient solution is volatile fatty acids.

The stirring mechanism includes a protective cylinder, an arc-shaped top and a first stirring motor. The first stirring motor is arranged in the protective cylinder and drives the arc-shaped top above the protective cylinder to rotate. The downward projection of the arc-shaped top is located on the downward projection of the protective cylinder. In addition, a plurality of stirring arms extending downward to the bottom surface of the lower box are arranged on the arc-shaped top.

The protective tube is fixed on the bottom of the lower box to protect the first stirring motor. The arc of the arc-shaped top is downward, and the width of the lower end of the arc-shaped top is greater than the outer diameter of the protective tube, which is used to cover the top of the protective tube. , to protect the first stirring motor, to prevent kitchen waste from entering the protective tube and causing pollution to the first stirring motor; the motor shaft of the first stirring motor is fixedly connected to the arc-shaped top through a connecting piece, which can Shaft and connecting shaft, the first stirring motor drives the arc-shaped top to rotate, and the arc-shaped top drives the stirring arm to rotate in the lower box to stir the kitchen waste.

Preferably, the garbage disposer is also provided with a water inlet, a water distribution pipe and a liquid outlet, the water inlet is located on the upper side of the garbage disposer, the liquid outlet is located at the bottom of the garbage disposer, and the water distribution pipe is horizontally arranged on the garbage disposer through the water inlet. Inside, the water distribution pipe is located above the mixing tank, and a plurality of water outlet holes are axially opened below the water distribution pipe.

The water distribution pipe is used to add a certain amount of water and spray evenly when the agitator is working, so as to facilitate the mixing of sawdust medium and bacteria with kitchen waste.

Preferably, a heating part is provided outside the stirrer, and the heating part includes a steam pipe surrounding the outside of the stirrer.

The steam pipe is connected with the external steam equipment, and the steam pipe is located on the entire outside of the agitator, which can realize the heating of the mixture in the entire agitator. The temperature required during the fermentation process is 30°C to 40°C.

Preferably, a plurality of driving levers are arranged on the arc-shaped top.

The lever can further break up the kitchen waste and evenly distribute the kitchen waste in the lower box.

Preferably, a scraper is fixed at the lower end of the stirring arm, and the scraper extends to one side of the inner wall of the lower box.

The scraper can push the broken kitchen waste out of the outlet, and when the lower box needs to be cleaned, it can clean the bottom of the lower box with an external water source.

A method for processing kitchen waste that can be reused as a resource, comprising the following steps:

s1), the collected kitchen waste is placed in the upper tank through the feed port, and the kitchen waste is primary crushed by the primary crushing mechanism;

s2), the broken kitchen waste falls into the arc-shaped top and the lower box, part of the kitchen waste falls into the lower end of the lower box under the buffer of the arc-shaped top, and the mixing mechanism in the lower box adds water to the broken kitchen waste. stir;

s3), after stirring, open the outlet of the lower box, and the stirred kitchen waste enters the reaction box of the garbage disposal mechanism through the outlet, driven by the stirring arm and the scraper.

S4), adding tap water, sawdust medium, and strains into the reaction box for uniform mixing, and standing for fermentation;

S5), heating the mixture in the agitator through the heating tube, and flowing out the fermented volatile fatty acid through the liquid outlet.

The species include Bacillus subtilis, Aspergillus versicolor, Paenibacillus polymyxa, Aspergillus digitatum, Aspergillus oryzae and Bacillus amyloliquefaciens.

Compared with the prior art, the beneficial effect of the present invention is that: the crushing motor drives the crushing shaft to rotate, and drives the crushing shaft to perform primary crushing on the kitchen waste entering from the feed port, and the crushed kitchen waste falls into the lower box, and the lower box The mixing mechanism is used to stir the kitchen waste crushed by the primary crushing mechanism, and it is stirred and fermented by the garbage treatment device, and the tap water, kitchen waste, chaff medium, and bacteria are evenly mixed by stirring, and then left to ferment, and a sufficient amount of sawdust The medium ensures that it can carry a large number of bacteria and ensure the fermentation of kitchen waste. It can be used as volatile fatty acids. Volatile fatty acids are mixtures containing acetic acid, propionic acid, valeric acid, butyric acid, etc., which are used as liquid fertilizers Used for flowers and plants can reduce the use of chemical fertilizers and alleviate the damage caused by chemical fertilizers to the ecological environment; as an additional carbon source for sewage treatment plants, it can provide carbon sources for the denitrification and phosphorus removal of sewage, and alleviate the shortage of carbon sources in sewage treatment plants. status quo;

The protective cylinder is fixed on the bottom surface of the lower box, which protects the first stirring motor and prevents kitchen waste from entering the protective cylinder and causing pollution to the first stirring motor; the first stirring motor drives the arc-shaped top to rotate, and the arc-shaped top Drive the stirring arm to rotate in the lower box to stir the kitchen waste.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the present invention;

Accompanying drawing 2 is the left view of the present invention;

Accompanying drawing 3 is A-A sectional view in accompanying drawing 2 of the present invention;

Accompanying drawing 4 is a schematic diagram of the internal structure of the lower tank body of the present invention;

Accompanying drawing 5 is a schematic diagram of the internal structure of the reaction box of the present invention.

Numbers shown in the accompanying drawings: 1, upper tank body; 101, feed inlet; 2, lower tank body; 201, feed outlet; 202, water inlet pipe; 3, primary crushing mechanism; 301, crushing motor; 302, crushing Knife; 303, crushing shaft; 4, protective cylinder; 5, arc top; 6, first stirring motor; 7, stirring arm; 8, driving rod; 9, scraper; 10, reaction box; 1001, feeding 11, agitator; 1101, rotating shaft; 1102, second stirring motor; 1103, stirring blade; 12, steam pipeline; 13, water inlet; 14, water distribution pipe; 15, liquid outlet.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. As shown in Figures 1 to 5, a kitchen waste treatment device that can be recycled and reused includes an upper tank body 1, a lower tank body 2, a stirring mechanism and a garbage disposal mechanism The upper tank body 1 is provided with a primary crushing mechanism 3 for crushing kitchen waste, the upper tank body 1 is provided with a feeding port 101 , and the lower tank body 2 is provided with a discharge port 201 at the bottom.

The stirring mechanism is arranged in the lower box body, and is used for stirring the kitchen waste falling on the bottom of the lower box body and crushed by the primary crushing mechanism 3 .

Kitchen waste needs to be manually sorted to remove metal, glass and plastic products, so as to avoid damage to the primary crushing mechanism 3 and the mixing mechanism. The primary crushing mechanism 3 includes a crushing motor 301 and a crushing shaft 303, and the crushing motor 301 is fixed on the upper tank The upper end cover of the body 1 has a hole, the motor shaft of the crushing motor 301 passes through the hole in the upper end cover, and one end of the motor shaft is connected with the crushing shaft through a coupling. The crushing shaft is provided with a plurality of crushing knives 302, and the crushing motor 301 drives the crushing shaft to rotate, and drives the crushing shaft to perform primary crushing on the kitchen waste entering from the feed port 101 .

The broken kitchen waste falls into the lower box, and the stirring mechanism of the lower box is used to stir the kitchen waste crushed by the primary crushing mechanism 3; Stirring fermentation, as available nutrient solution.

The stirring mechanism includes a protective cylinder 4, an arc-shaped top 5 and a first stirring motor 6. The first stirring motor 6 is arranged in the protective cylinder 4 and drives the arc-shaped top 5 above the protective cylinder 4 to rotate, and the downward direction of the arc-shaped top 5 The projection is located outside the downward projection of the protective tube 4. The arc-shaped top 5 is provided with a plurality of stirring arms 7 extending downward to the bottom of the lower box. The lower end of the stirring arm 7 is fixed with a scraper 9, and the scraper 9 extends to one side of the inner wall of the lower box.

The upper part of the arc-shaped top 5 is provided with a plurality of driving rods 8, and the driving rods 8 are arranged horizontally. The driving rods 8 can further disperse the kitchen waste and evenly distribute the kitchen waste in the lower box.

The protective tube 4 is fixed on the bottom surface of the lower box to protect the first stirring motor 6. The arc of the arc-shaped top 5 is downward, and the width of the lower end of the arc-shaped top 5 is greater than the outer diameter of the protective tube 4 for covering Above the protective tube 4, it protects the first stirring motor 6, preventing kitchen waste from entering the protective tube 4 and causing pollution to the first stirring motor 6; the motor shaft of the first stirring motor 6 passes through the connecting piece and the arc The shaped top 5 is fixedly connected, and the connecting parts can be couplings and connecting shafts. The first stirring motor 6 drives the arc-shaped top 5 to rotate, and the arc-shaped top 5 drives the stirring arm 7 to rotate in the lower box to stir the kitchen waste. .

The garbage treatment device includes a reaction box 10, an agitator 11, a sawdust medium, bacteria, a water inlet 13, a water distribution pipe 14, and a liquid outlet 15. The upper end of the reaction box 10 is provided with a feeding port corresponding to the discharge port 201. 1001, the agitator 11 is arranged in the reaction box 10, and is used for mixing kitchen waste, sawdust medium and bacterial species, and the bacterial species include Bacillus subtilis, Aspergillus versicolor, Paenibacillus polymyxa, Aspergillus digitatum, Aspergillus oryzae reconciliation Amylobacter bacillus.

The stirrer 11 includes a rotating shaft 1101 and a second stirring motor 1102 for driving the rotating shaft to rotate. The rotating shaft 1101 is provided with a stirring paddle 1103 for stirring the sawdust medium and bacteria.

The water inlet 13 is located on the upper side of the garbage disposer, the liquid outlet 15 is located at the bottom of the garbage disposer, the water distribution pipe 14 is arranged horizontally in the garbage disposer through the water inlet 13, the water distribution pipe 14 is located above the mixing tank, and the water distribution pipe 14 is located below the shaft. A plurality of water outlet holes are opened in the direction.

The water distribution pipe 14 is used to add a certain amount of water and spray evenly when the agitator 11 is working, so as to facilitate the mixing of sawdust medium and bacteria with kitchen waste.

The heating part includes a steam pipe 12 surrounding the outside of the agitator 11 , the steam pipe 12 communicates with external steam equipment, the steam pipe 12 is located on the entire outside of the agitator 11 , and can realize heating of the mixture in the entire agitator 11 .

One side of the lower box body is also provided with a water inlet 13, and the water inlet 13 is provided with a water inlet pipe 202. The water inlet pipe 202 is used in conjunction with an external water source. When the lower box body needs to be cleaned, the scraper 9 is used to clean the bottom of the lower box body.

The processing method of kitchen waste includes the following steps:

s1), the collected kitchen waste is placed in the upper tank body 1 through the feed port 101, and the kitchen waste is primary crushed by the primary crushing mechanism 3;

s2), the broken kitchen waste falls into the arc-shaped top 5 and the lower box, part of the kitchen waste falls into the lower end of the lower box under the buffer of the arc-shaped top 5, and the mixing mechanism in the lower box adds water to the broken food waste. rubbish for stirring;

s3), after stirring, open the outlet 201 of the lower box, and the stirred kitchen waste enters the reaction box 10 of the garbage disposal mechanism through the outlet 201 driven by the stirring arm 7 and the scraper 9 .

S4), tap water, sawdust medium, and bacterial strains are added into the reaction box 10 for uniform mixing, stirred for 1 min, and tap water, kitchen waste, chaff medium, and bacterial strains are evenly mixed by stirring, then left to ferment for 24 hours, and the sawdust medium is placed in Inside the agitator 11, the amount of wood chips should reach 1/2 of the capacity of the agitator 11, enough to ensure that a large number of bacteria can be carried to ensure the fermentation of kitchen waste;

S5), the mixture in the agitator 11 is heated through the heating tube, and the fermentation process requires a temperature of 30°C to 40°C to flow out the fermented volatile fatty acids through the liquid outlet 15, and use it as a liquid fertilizer for Flowers and plants can reduce the use of chemical fertilizers and alleviate the damage caused by chemical fertilizers to the ecological environment; they can be used as an additional carbon source for sewage treatment plants, which can provide carbon sources for the denitrification and phosphorus removal of sewage, and alleviate the current situation of the shortage of carbon sources in sewage treatment plants.

It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in the present application.

Claims (6)

1. The utility model provides a but kitchen garbage processing apparatus of resource recycle, includes jar body (1) and lower jar of body (2), be equipped with in jar body (1) and be used for broken kitchen garbage's elementary broken mechanism (3), it is provided with feed inlet (101) to go up jar body (1) upper portion, jar body (2) bottom is provided with discharge gate (201) down, its characterized in that still includes:

the stirring mechanism is arranged in the lower box body and is used for stirring kitchen garbage falling to the bottom of the lower box body and crushed by the primary crushing mechanism (3);

the garbage treatment device comprises a reaction box body (10), a stirrer (11), a wood chip medium and a strain, wherein the stirrer (11) is arranged in the garbage treatment device and is used for mixing the kitchen garbage, the wood chip medium and the strain;

rabbling mechanism includes a protection section of thick bamboo (4), arc top (5) and first agitator motor (6), first agitator motor (6) set up in a protection section of thick bamboo (4) and drive arc top (5) that are located protection section of thick bamboo (4) top and rotate, the downward projection of arc top (5) is located outside the downward projection of a protection section of thick bamboo (4), be provided with rabbling arm (7) of a plurality of downwardly extending to box bottom surface down on arc top (5).

2. The kitchen waste disposal device according to claim 1, wherein: garbage disposer still is provided with water inlet (13), water distributor (14) and liquid outlet (15), water inlet (13) are located garbage disposer upper end one side, liquid outlet (15) are located the garbage disposer bottom, water distributor (14) pass water inlet (13) and transversely set up in garbage disposer, water distributor (14) are located the agitator tank top, a plurality of apopores have been seted up to water distributor (14) below axial.

3. The kitchen waste disposal device as claimed in claim 2, wherein: a heating part is arranged on the outer side of the stirrer (11), and the heating part comprises a steam pipeline (12) surrounding the outer side of the stirrer (11).

4. The kitchen waste disposal device according to claim 1, wherein: the arc top (5) is provided with a plurality of shift levers (8).

5. The kitchen waste disposal device as claimed in claim 2, wherein: the lower end of the stirring arm (7) is fixedly provided with a scraper (9), and the scraper (9) extends to one side of the inner wall of the lower box body.

6. A method for treating kitchen waste capable of being recycled, characterized in that the kitchen waste treatment device capable of being recycled according to any one of claims 1 to 5 is adopted, and the method comprises the following steps:

s 1), placing the collected kitchen waste into the upper tank body (1) through the feeding hole (101), and performing primary crushing on the kitchen waste through the primary crushing mechanism (3);

s 2), the crushed kitchen waste falls into the arc-shaped top (5) and the lower box body, part of the kitchen waste falls into the lower end of the lower box body under the buffer of the arc-shaped top (5), and a stirring mechanism in the lower box body adds water to stir the crushed kitchen waste;

s 3), after stirring, opening a discharge hole (201) of the lower box body, and driving the stirred kitchen waste to enter a reaction box body (10) of the waste treatment mechanism through the discharge hole (201) under the driving of a stirring arm (7) and a scraper (9);

s4), adding tap water, sawdust media and strains into the reaction box body (10), uniformly mixing, and standing for fermentation;

s5), heating the mixture in the stirrer (11) through the heating pipe, and flowing out the fermented volatile fatty acid through the liquid outlet (15).

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