CN101983951A - Composting device for domestic waste - Google Patents

Abstract

The invention discloses a domestic garbage composting device, which comprises a sealed box body and a material inlet arranged on the box body, a composting room is arranged in the box body, the material inlet communicates with the composting room, and a material outlet is arranged on the composting room The characteristic is that the composting room is equipped with a ventilated spiral stirring propeller, and the bottom of the composting room is equipped with a water bath, and a heating device is connected to the water bath; the advantage is that it provides heat for the fermentation of organic domestic waste such as kitchen waste in the composting room. Create an environment conducive to microbial activities, speed up the fermentation and degradation of organic domestic waste, and greatly improve the utilization rate of heat energy. At the same time, using solar energy to heat is both environmentally friendly and reduces the consumption of conventional energy; The secondary composting room greatly shortens the longitudinal length of the entire composting device, further saves the composting area, and further improves the fermentation degree of the composting, reducing the workload.

Description

A domestic waste composting device

technical field

The present invention relates to a treatment device for domestic waste, in particular to a domestic waste composting device.

Background technique

With the improvement of living standards of urban and rural people, people's health requirements for living environment have also been greatly improved. At present, in the domestic waste disposal industry, the original domestic waste is generally used for composting directly after pretreatment and fermentation for a certain period of time. At present, the main forms of fermentation are open-air and sealed: open-air fermentation will An unpleasant smell is produced, which seriously affects the surrounding environment; sealed fermentation is carried out in a fermentation bin, which is generally composed of four bin walls, a bin top and a bin bottom. For example, the Chinese utility model patent specification whose application date is February 25, 2004 and whose patent number is ZL200420025022.5 discloses a garbage fermentation box, which is a fermentation box composed of a warehouse wall and a warehouse bottom, on which a rotating shaft passes A top cover is installed, and a top cover opening device is installed on the side wall. There are also four lifting holes for lifting on the fermentation box. Door I and door II are respectively installed on the sides of the two ends of the fermentation box. An air supply system and a spray system are installed in the fermentation tank, and a backing plate I and a backing plate II are installed on the inner bottom of the fermentation box, and the backing plate I and the backing plate II are respectively opened with holes of different sizes to facilitate the infiltration of sewage After the top cover is opened, the garbage feed falls on the backing plate I, and after a certain period of fermentation, after the fermentation is completed, it is hoisted into a special dump truck through four lifting holes and then discharged. During the process, it can prevent the unpleasant smell from entering the air, but the fermentation speed will be faster at a certain high temperature. In winter, due to the low outside temperature, the fermentation and degradation speed of the garbage in the fermentation tank is very slow, often The fermentation tank is filled with garbage in a short period of time, resulting in a decrease in its utilization rate.

Contents of the invention

The technical problem to be solved by the present invention is to provide a domestic garbage composting device that can increase the fermentation speed and degree of garbage, thereby improving its utilization rate.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a domestic garbage composting device, comprising a sealed box body and a feed port arranged on the box body, a composting chamber is arranged in the box body, and the The feed inlet is communicated with the composting chamber, the composting chamber is provided with a discharge port, the composting chamber is provided with a ventilated spiral stirring propeller, and the composting chamber is provided with a water A bath, the water bath is connected with a heating device.

The spiral stirring propeller includes a drive motor, a drive shaft and a spiral stirring blade fixedly arranged on the drive shaft, the drive motor is connected with the drive shaft through a drive wheel, and the drive shaft Air distribution holes are arranged on the top, and a fan is connected to the end of the drive shaft.

A leachate collection box is arranged in the box, and the leachate collection box is located below the composting room and close to the water bath, and the composting room is provided with a The percolation hole connected to the filtrate collection box, the leachate collection box is provided with a return pipe, the return pipe passes through the leachate collection box and leads into the composting chamber, and the return pipe A pump is connected to it.

The leachate collection tank is provided with a drain pipe, and the drain pipe passes through the leachate collection tank, and the drain valve is provided on the drain pipe, which can be sent to the leachate regularly through the drain pipe. The leachate produced after the fermentation and degradation of domestic garbage is discharged outside the box, and the liquid can also be used as a liquid fertilizer.

The box is provided with a secondary composting chamber, the secondary composting chamber is located below the composting chamber, and the discharge port communicates the composting chamber with the secondary composting chamber, The secondary composting chamber is sealed with a discharge door.

The heating device is a solar heating device or an electric heating device or a complementary device of solar heating and electric heating.

A top cover is sealed on the feed inlet.

Compared with the prior art, the present invention has the advantage that because the composting chamber is provided with a ventilated spiral agitating propeller, the household garbage can be propelled in the composting chamber by means of spiral agitation, and the processing capacity of the garbage can be increased by 2 to 3 times that of the traditional one. , and a water bath is set under the composting room, and a solar heating device is connected to the water bath to provide heat for the fermentation of organic domestic waste such as kitchen waste in the composting room, creating an environment conducive to microbial activities and speeding up the production of organic domestic waste. The fermentation degradation speed is high, and the water bath is set under the composting room, which solves the problem of uneven energy supply caused by the reduction of the amount of garbage and the bottom of the composting room in the traditional fermentation tank during the waste degradation process, so that the thermal energy The utilization rate is greatly improved, and at the same time, the use of solar energy heating is environmentally friendly and reduces the consumption of conventional energy; and because there is a secondary composting room under the composting room, the primary composting and secondary composting are integrated in one device, which greatly shortens the composting time. The longitudinal length of the entire composting device further saves the composting area, and further improves the degree of fermentation of the compost, reducing the workload; in addition, since the leachate collection box is set at the bottom of the composting room close to the water bath , the leachate produced during the fermentation process of domestic waste flows into the leachate collection tank from the percolation hole of the composting chamber, and returns the leachate to the composting chamber through the return pipe, which improves the moisture content of domestic waste and keeps the waste A good living environment for microorganisms is conducive to the growth of microorganisms and ultimately promotes the decomposition of garbage. At the same time, the amount of leachate is greatly reduced through evaporation; it also helps to discharge the liquid produced after the degradation reaction.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in the figure, a domestic garbage composting device includes a drive motor 6, a sealed box body 1 and a feed port 11 arranged on the box body 1, and a top cover is sealed on the feed port 11 (not shown in the figure) ), the box body 1 is provided with a composting chamber 2, a water bath 3, a leachate collection box 4 and a secondary composting chamber 5, the feed port 11 communicates with the composting chamber 2, and the composting chamber 2 is provided with a discharge port 21, composting The chamber 2 is provided with a driving shaft 22, on which a helical stirring paddle 23 is fixedly arranged, and the driving motor 6 is connected with the driving shaft 22 through the driving wheel 7, and the driving shaft 22 is provided with an air distribution hole 24, and the end of the driving shaft 22 The fan 25 is connected to the top, the water bath 3 is arranged under the composting chamber 2, the water bath 3 is connected with a solar heating device (not shown in the figure), and the leachate collection box 4 is located under the composting chamber 2 and is close to the water bath 3. The composting chamber 2 is provided with a percolation hole 41 communicating with the leachate collection box 4. The leachate collection box 4 is provided with a return pipe 42. The return pipe 42 passes through the leachate collection box 4 and enters the composting chamber 2. A pump (not shown in the figure) is connected to the return pipe 42, the secondary composting chamber 5 is located below the composting chamber 2, and the discharge port 21 communicates the composting chamber 2 with the secondary composting chamber 5, and the secondary composting chamber 5 is sealed. A discharge door 51 is arranged.

In the above embodiment, in addition to the structure shown in the drawings, a drain pipe can also be provided in the leachate collection box 4, and the drain pipe passes through the leachate collection box 4, and a drain valve is arranged on the drain pipe; solar heating The device can also be replaced by an electric heating device or a complementary device of solar heating and electric heating.

The fermentation process of the above-mentioned fermentation device is as follows: open the top cover, pour organic household waste such as kitchen waste into the composting chamber 2 from the feed port 11, close the top cover, and then drive the drive shaft 22 to rotate through the drive motor 6 and the drive wheel 7 , the spiral stirring paddle 23 pushes the domestic garbage backwards, leaving the space required for the second day's feeding, while the blower fan 25 oxygenates the domestic garbage compost through the air distribution holes 24 on the drive shaft 22, and the solar heating device 3 is heated, and the compost in the compost chamber 2 and the leachate in the leachate collection box 4 are auxiliary heated by the heat of the water bath 3 to increase the fermentation speed of the compost, and the leachate in the leachate collection box 4 is in the After being collected, it flows back into the compost chamber 2 through the pump and the return pipe 42 to improve the moisture content of the compost. Enter the secondary composting chamber 5 and accept the secondary composting fermentation. Since the reduction of the garbage is quite obvious at this time, the secondary composting chamber 5 can accommodate many days of garbage, so it is only necessary to clean the secondary composting chamber every once in a while. The obsolete garbage in 5 can be disposed of.

Claims (7)

1. A domestic waste composting device, comprising a sealed casing and a charging port arranged on the casing, a composting chamber is arranged in the casing, and the charging port and the composting chamber connected, the composting chamber is provided with a discharge port, which is characterized in that the composting chamber is provided with a ventilated spiral stirring propeller, and a water bath is provided below the composting chamber, and the water bath is A heating device is connected. 2. A kind of domestic waste composting device as claimed in claim 1, wherein said screw agitating propeller comprises a drive motor, a drive shaft and a screw agitator blade fixedly arranged on said drive shaft, said The drive motor is connected with the drive shaft through the drive wheel, the drive shaft is provided with air distribution holes, and the end of the drive shaft is connected with a fan. 3. A domestic garbage composting device as claimed in claim 1, characterized in that a leachate collection box is arranged in the box, and the leachate collection box is located below the composting chamber and close to the In the water bath, the composting chamber is provided with a percolation hole communicating with the leachate collection box, and a return pipe is arranged in the leachate collection box, and the return pipe passes through the The leachate collection tank leads into the compost chamber, and the return pipe is connected with a pump. 4. A kind of domestic waste composting device as claimed in claim 3, characterized in that a drain pipe is arranged in the leachate collection box, and the drain pipe passes through the leachate collection box, so that The above-mentioned drain pipe is provided with a drain valve. 5. A kind of domestic waste composting device as claimed in claim 1, characterized in that a secondary composting chamber is arranged in the said box, and said secondary composting chamber is located below the said composting chamber, said The discharge port communicates the composting chamber with the secondary composting chamber, and the secondary composting chamber is sealed with a discharge door. 6. A domestic garbage composting device as claimed in claim 1, characterized in that said heating device is a solar heating device or an electric heating device or a complementary device of solar heating and electric heating. 7. A domestic garbage composting device according to claim 1, characterized in that a top cover is sealed on the feed inlet.

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