Multifunctional pretreatment equipment for aerobic composting of kitchen waste organic matters

Abstract

The utility model relates to the technical field of environmental protection, and provides kitchen waste organic matter aerobic composting multifunctional pretreatment equipment which comprises a stirring bin, a power mechanism and a main shaft, the main shaft penetrates through the stirring bin, the two ends of the main shaft are arranged on bearing seats, and the main shaft is in driving connection with the power mechanism; the main shaft is provided with a plurality of small stirring shafts which are arranged at intervals, the small stirring shafts are arranged inside the stirring bin, the main shaft and the small stirring shafts are provided with small aeration holes, and the stirring bin is further provided with a cooling channel and a heating channel. The cooling channel and the heating channel are arranged on the stirring bin, the main stirring shaft and the small stirring shaft are arranged in the stirring bin, and the small aeration holes are formed in the shafts, so that materials are efficiently mixed and stirred, the fermentation period is shortened, and the fermentation quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, specifically to a multi-functional pretreatment device for aerobic composting of organic matter in kitchen waste. Background Technology

[0002] Traditional composting methods often involve simply piling the mixture in an open space for natural fermentation. For example, when composting kitchen waste residue, the kitchen waste is mixed with sawdust and then piled up for fermentation. During the fermentation process, odors are produced, which can pollute the air.

[0003] To reduce pollution, some composting processes currently involve pouring the mixture into sealed containers to minimize odor leakage. Stirring mechanisms are added to these containers to directly mix the materials. While this improves the fermentation rate to some extent, the composting process suffers from several drawbacks, including significant heat loss, low fermentation temperature, insufficient aeration, easy lumps after mixing, slow moisture content reduction, long fermentation cycle, and high processing costs. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a multi-functional pretreatment device for aerobic composting of organic matter in kitchen waste.

[0005] The present invention provides a multi-functional pretreatment device for aerobic composting of kitchen waste organic matter, comprising a mixing chamber, a power mechanism, and a main shaft;

[0006] The main shaft passes through the mixing chamber, and one end of the main shaft is disposed on a second bearing seat located on the outside of the mixing chamber. The other end of the main shaft passes through a first bearing seat located on the other side of the mixing chamber and is driven and connected to the power mechanism.

[0007] The mixing chamber has a mixing space inside, and a plurality of small mixing shafts are arranged at intervals on the main shaft. The plurality of small mixing shafts are arranged at intervals along the circumferential direction of the main shaft, and the plurality of small mixing shafts are all arranged in the mixing space.

[0008] The main shaft and the small stirring shaft can be used to aerate the material in the stirring space.

[0009] The mixing chamber is also equipped with a jacket, which has cooling channels and heating channels.

[0010] Preferably, it also includes a support frame, on which the power mechanism and the mixing chamber are both mounted;

[0011] The first bearing housing and the second bearing housing are respectively installed on both sides of the mixing chamber.

[0012] Preferably, both the first bearing housing and the second bearing housing are provided with bearings inside, and the first bearing housing and the second bearing housing provide support for the rotation of the main shaft. The end of the second bearing housing is provided with a bearing end cap.

[0013] Preferably, along the length of the main shaft, a plurality of spaced-apart stirring shafts are arranged on the main shaft, and the plurality of stirring shafts are spaced-apart along the circumferential direction of the main shaft, and all the plurality of stirring shafts are arranged in the stirring space.

[0014] Preferably, the stirring shaft includes three types of different lengths: a long shaft, a medium shaft, and a short shaft, with multiple long shafts, medium shafts, and short shafts, so that when the main shaft rotates, the stirring shaft can stir different parts in the stirring space.

[0015] Preferably, a plurality of stirring shaft groups are evenly arranged along the circumference of the main shaft. The stirring shafts in each stirring shaft group are arranged in a straight line along the length of the main shaft. The stirring shafts in each pair of adjacent stirring shaft groups are staggered. When viewed along the axis of the main shaft, the stirring shafts in each pair of adjacent stirring shaft groups are arranged at an angle of °.

[0016] Preferably, the stirring shafts of the same length in each stirring shaft group are not adjacent, and the stirring shafts in each stirring shaft group are arranged in the following order: long shaft, medium shaft, short shaft, long shaft, medium shaft, short shaft.

[0017] Preferably, the end of the stirring shaft is further provided with a blade, and the helix angle of the blade can be adjusted.

[0018] Preferably, both the main shaft and the stirring shaft are hollow shafts, and both the main shaft and the stirring shaft are provided with aeration holes;

[0019] The second bearing housing has an air inlet at its end. A rotary sealing ring is installed between the second bearing housing and the main shaft. The inner side of the rotary sealing ring is sealed to the main shaft. The second bearing housing is a fixed component. The main shaft can rotate within the second bearing housing. Gas enters the main shaft through the air inlet and the rotary sealing ring and flows out through the aeration holes to achieve aeration.

[0020] Preferably, the cooling channels are respectively provided with cooling water inlets and condensate outlets, the heating channels are respectively provided with steam inlets and cooling water outlets, the top of the mixing chamber is also provided with a manhole, a level gauge port, an odor outlet, an auxiliary material inlet and one or more spare ports, the side of the mixing chamber is provided with a material inlet, and the bottom of the mixing chamber is provided with a material outlet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention achieves efficient mixing of materials by configuring cooling channels and heating channels on the mixing chamber, and setting up a main mixing shaft and a small mixing shaft inside, with aeration holes on the shaft. It can solve technical problems such as insufficient mixing and aeration of kitchen waste in aerobic composting equipment, long fermentation cycle, low heating temperature, insufficient cooked food, and high moisture content of compost, shortening the fermentation cycle, improving fermentation quality, and reducing costs. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the axial cross-sectional structure of the mixing chamber;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the mixing chamber;

[0026] Figure 3 This is a top view of the internal structure of the mixing chamber;

[0027] Figure 4 A three-dimensional structural diagram of the main shaft and the stirring shaft;

[0028] Figure 5 A schematic diagram of the front structure of the main shaft and the stirring shaft;

[0029] Figure 6 A schematic diagram of the cross-section of the main shaft and the stirring shaft;

[0030] Figure 7 This is a side view of the equipment.

[0031] Figure 8 for Figure 7 Schematic diagram of the structural cross section along the AA direction;

[0032] Figure 9 This is a three-dimensional structural diagram of the device in one direction;

[0033] Figure 10 This is a three-dimensional structural diagram of the device in another direction.

[0034] The diagram shows:

[0035] Bracket 1;

[0036] Mixing chamber 2;

[0037] Stirring space 21;

[0038] Steam inlet 22;

[0039] Manhole 23;

[0040] Cooling water inlet 24;

[0041] Material export 25;

[0042] Condensate outlet 26;

[0043] Cooling water outlet 27;

[0044] Level gauge port 28;

[0045] Odor outlet 29;

[0046] Imported auxiliary materials: 210;

[0047] Material imports: 211;

[0048] Power mechanism 3;

[0049] Spindle 4;

[0050] Stirring shaft 41;

[0051] Aeration holes 4101;

[0052] Long axis 411;

[0053] Central axis 412;

[0054] Short axis 413;

[0055] Fixing plate 414;

[0056] First bearing housing 42;

[0057] Second bearing housing 43;

[0058] Air intake 431;

[0059] Rotary sealing ring 432;

[0060] 44 blades;

[0061] Bearing end cap 45. Detailed Implementation

[0062] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0063] This utility model provides a multi-functional pretreatment device for aerobic composting of organic matter in kitchen waste, such as... Figures 1 to 10As shown, it includes a support 1, a mixing chamber 2, a power mechanism 3, and a main shaft 4. The power mechanism 3 and the mixing chamber 2 are both mounted on the support 1. The main shaft 4 passes through the mixing chamber 2, and one end of the main shaft 4 is disposed on a second bearing seat 43 located on the outside of the mixing chamber 2. The other end of the main shaft 4 passes through a first bearing seat 42 located on the other side of the outside of the mixing chamber 2 and is driven and connected to the power mechanism 3. The power mechanism 3 is preferably a motor, and the motor is equipped with a reducer.

[0064] Furthermore, the first bearing housing 42 and the second bearing housing 43 are respectively installed on both sides of the mixing chamber 2. Bearings are installed inside the first bearing housing 42 and the second bearing housing 43, which provide support for the rotation of the main shaft 4. A bearing end cap 45 is provided at the end of the second bearing housing 43.

[0065] like Figure 1 As shown, the mixing chamber 2 has a mixing space 21 inside. Along the length of the main shaft 4, a plurality of small mixing shafts 41 are arranged at intervals on the main shaft 4, and the plurality of small mixing shafts 41 are arranged at intervals along the circumferential direction of the main shaft 4. The plurality of small mixing shafts 41 are all arranged in the mixing space 21.

[0066] like Figure 1 , Figure 4 , Figure 5 , Figure 6 As shown, the stirring shaft 41 includes three types of different lengths: a long shaft 411, a middle shaft 412, and a short shaft 413. The number of long shafts 411, middle shafts 412, and short shafts 413 are multiple and arranged on the main shaft 4 in different ways. This allows the stirring shaft 41 to stir different parts of the stirring space 21 when the main shaft 4 rotates, preventing them from tangling and achieving full coverage of the stirring space, thus improving the stirring effect.

[0067] In this embodiment, multiple stirring shaft groups are uniformly arranged along the circumference of the main shaft 4. The stirring shafts 41 in each stirring shaft group are arranged in a straight line along the length of the main shaft 4. The stirring shafts 41 in each two adjacent stirring shaft groups are staggered. When viewed along the axis of the main shaft 4, the stirring shafts 41 in each two adjacent stirring shaft groups are arranged at a 60° angle. Stirring shafts 41 of the same length in each stirring shaft group are not adjacent. In one possible embodiment, the stirring shafts 41 in the stirring shaft group are arranged in the following order: long shaft 411, medium shaft 412, short shaft 413, long shaft 411, medium shaft 412, short shaft 413. By uniformly arranging them in the axial and circumferential directions, the stirring rate is higher.

[0068] To improve the mixing effect, a blade 44 is also provided at the end of the mixing shaft 41. One end of the mixing shaft 41 is connected to the main shaft 4 by a thread or spline and locked with a lock nut. The helix angle of the blade 44 is adjustable, realizing the transmission of mixing force, resulting in a higher mixing speed and better mixing effect. The blade 44 is detachably configured at the other end of the mixing shaft 41. Preferably, a fixing plate 414 is welded to the end of the mixing shaft 41. Figure 6 As shown, the blade 44 is detachably fixed to the fixed plate 414 by bolts. In this invention, the helix angle of the blade 44 on the stirring shaft 41 can be adjusted by threaded connection, thereby improving the stirring speed and stirring efficiency.

[0069] like Figure 4 , Figure 8 As shown, both the main shaft 4 and the stirring shaft 41 are hollow shafts, and both are equipped with aeration holes 4101 to achieve uniform aeration during the stirring process. Specifically, the end of the second bearing seat 43 has an air inlet 431, and a rotary sealing ring 432 is installed between the second bearing seat 43 and the main shaft 4. The inner side of the rotary sealing ring 432 is sealed to the main shaft 4. The second bearing seat 43 is a fixed component, and the main shaft 4 rotates within the second bearing seat 43. Gas enters the main shaft 4 through the air inlet 431 and the rotary sealing ring 432 and flows out through the aeration holes 4101, thus achieving aeration. This invention solves the problem of insufficient aeration during composting fermentation and improves the fermentation effect. At the same time, most existing composting processes require a lot of additives to help the compost pile reach the optimal fermentation conditions each time, increasing the processing cost. This invention eliminates the need for additives, reducing the fermentation cost.

[0070] like Figure 1 , Figure 3 , Figure 7 , Figure 9As shown, specifically, the mixing chamber 2 is also equipped with a jacket, which has cooling channels and heating channels. The cooling channels are respectively equipped with cooling water inlets 24 and condensate outlets 26. Cooling water is introduced into the cooling channels through the cooling water inlets 24 and condensate outlets 26 to cool the mixing chamber 2. The heating channels are respectively equipped with steam inlets 22 and cooling water outlets 27. Steam is introduced into the heating channels through the steam inlets 22 and cooling water outlets 27 to heat the mixing chamber 2. The top of the mixing chamber 2 is also equipped with a manhole 23, a level gauge port 28, an odor outlet 29, an auxiliary material inlet 210, and one or more spare ports. The odor outlet 29 is connected to an extraction pipe to remove and treat the odor. The side of the mixing chamber 2 is equipped with a material inlet 211, which can be equipped with an auger to transport materials. The bottom of the mixing chamber 2 is equipped with a material outlet 25. This invention overcomes the shortcomings of mixing devices, such as low mixing speed, uneven mixing, easy adhesion and entanglement of materials, short service life, and non-adjustable spiral angle of the mixing shaft, and achieves efficient mixing of materials.

[0071] The working principle of this utility model is as follows:

[0072] A motor reducer is connected to the main shaft 4, enabling it to rotate. Several small stirring shafts 41 are mounted on the main shaft 4, allowing for the mixing and conveying of materials within the mixing chamber 2. Several aeration holes 4101 are provided on the main shaft 4 and the small stirring shafts 41 to achieve uniform aeration within the mixing chamber 2 during the mixing process. A jacket is installed on the outer wall of the mixing chamber 2, and an automatic valve is installed for switching between heating and cooling during the mixing process. An odor outlet 29 is located at the top of the mixing chamber 2, which can be connected to a pipeline to remove odors, thus removing a large amount of moisture from the materials during the heating or cooling process. The mixing chamber 2 in this invention has good sealing performance, no odor pollution, higher heating temperature, faster maturation, and the temperature can be quickly adjusted after heating to meet fermentation requirements. Simultaneously, the uniform aeration effect is better, resulting in lower moisture content in the matured material, a shorter composting cycle, and more thorough mixing.

[0073] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0074] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A multifunctional pretreatment equipment for kitchen waste organic matter aerobic composting, characterized in that, It comprises a stirring bin (2), a power mechanism (3) and a main shaft (4); The main shaft (4) penetrates the stirring bin (2), and one end of the main shaft (4) is arranged on a second bearing seat (43) located on one side outside the stirring bin (2), and the other end of the main shaft (4) penetrates a first bearing seat (42) located on the other side outside the stirring bin (2) and is connected with the power mechanism (3) for driving; The stirring bin (2) has a stirring space (21) inside, the main shaft (4) is arranged with a plurality of stirring small shafts (41) arranged at intervals, and the plurality of stirring small shafts (41) are arranged at intervals along the circumferential direction of the main shaft (4), and the plurality of stirring small shafts (41) are arranged in the stirring space (21). The main shaft (4) and the stirring small shafts (41) can aerate the material in the stirring space (21). The stirring bin (2) is further provided with a jacket, and the jacket has a cooling channel and a heating channel.

2. The multifunctional pretreatment equipment for kitchen garbage and organic matter aerobic composting according to claim 1, characterized in that, It further comprises a support (1), and the power mechanism (3) and the stirring bin (2) are mounted on the support (1). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

3. The multifunctional pretreatment equipment for kitchen garbage and organic matter aerobic composting according to claim 1, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

4. The kitchen garbage organic matter aerobic compost multifunctional pretreatment equipment according to claim 1, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

5. The multi-functional pre-treatment equipment for kitchen garbage and organic matter aerobic composting according to claim 4, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

6. The multi-functional pre-treatment apparatus for kitchen garbage and organic matter aerobic composting according to claim 5, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

7. The multi-functional pre-treatment apparatus for kitchen garbage and organic matter aerobic composting according to claim 6, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2).

8. The kitchen garbage organic matter aerobic compost multifunctional pretreatment equipment according to claim 4, characterized in that, The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively mounted on the two sides of the stirring bin (2). The first bearing seat (42) and the second bearing seat (43) are respectively arranged on the two sides of the stirring bin (2). The first bearing seat (42) and a second bearing seat (43) are respectively arranged on the two sides of the stirring bin (2).

9. The kitchen garbage organic matter aerobic compost multifunctional pretreatment equipment according to claim 1, characterized in that, The main shaft (4) and the stirring small shaft (41) are hollow shafts, and the main shaft (4) and the stirring small shaft (41) are provided with aeration small holes (4101); The end of the second bearing seat (43) is provided with an air inlet (431), a rotating sealing ring (432) is arranged between the second bearing seat (43) and the main shaft (4), the inner side of the rotating sealing ring (432) is sealingly connected with the main shaft (4), the second bearing seat (43) is a fixed component, the main shaft (4) can rotate in the second bearing seat (43), and gas enters the main shaft (4) through the air inlet (431) and the rotating sealing ring (432) and flows out from the aeration small holes (4101), so that aeration is realized.

10. The kitchen garbage organic matter aerobic compost multifunctional pretreatment equipment according to claim 1, characterized in that, The cooling channel is respectively provided with a cooling water inlet (24) and a condensed water outlet (26), the heating channel is respectively provided with a steam inlet (22) and a cooling water outlet (27), the top of the stirring bin (2) is further provided with a manhole (23), a liquid level meter port (28), a foul gas outlet (29), an auxiliary material inlet (210) and one or more standby ports, the side of the stirring bin (2) is provided with a material inlet (211), and the bottom of the stirring bin (2) is provided with a material outlet (25).

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