Novel perishable garbage biological drying and stirring system

Abstract

The utility model provides a novel perishable garbage bio-drying stirring system, which is characterized in that a fermentation bin body is arranged in a barrel body of an outer shell of a tower-type treatment device, the stirring system comprises layered stirring units arranged in the fermentation bin body of the barrel body, each layer of stirring unit is provided with a supporting beam in the fermentation bin body, and the supporting beams are arranged in the fermentation bin body. The end part of the supporting beam is connected with the inner wall of the barrel body, and a material passing channel is arranged on the supporting beam and is used for communicating the stirring units up and down; a rotating device is arranged at the beam top of the supporting beam and is positioned in the middle area of the stirring unit; a sliding rail is arranged on the inner wall of the cylinder body, and an interval space is formed between the sliding rail and the beam top of the supporting beam. According to the utility model, the blade type augers which are arranged in a layered manner are supported and driven by the rotating device and the slide rail to periodically stir, and are matched with the discharge ports which are opened in a layered and staggered manner, so that sufficient mixing in the fermentation bin body is realized through frequent discharge and feeding.

Description

Technical Field

[0001] The utility model relates to the technical field of bio-drying treatment of perishable garbage, in particular to a novel bio-drying and stirring system for perishable garbage. Background Art

[0002] As people's living standards improve, more and more garbage is generated. At present, the treatment of perishable garbage mainly adopts landfill, incineration and composting. However, these methods all have certain defects. For example, the landfill method not only occupies a large amount of land resources, but also easily produces secondary pollution such as leachate; the incineration method has large investment, high technical requirements, and is easy to produce harmful gases; the composting method has a long cycle. Since my country's perishable garbage is characterized by high salt, high oil, high water content and a wide variety of categories, the quality of the product obtained by composting is poor and cannot be directly used as fertilizer for farmland or municipal greening. In recent years, bio-drying technology has flourished. It quickly removes moisture through the heat of biological fermentation, has a small demand for external heat energy supplement, and has a very outstanding reduction effect. Low-water content products can be used as combustion-supporting materials for incineration or to generate waste-derived fuel RDF, and have broad market application prospects.

[0003] At present, the biological drying process for perishable waste is mainly drum-type and tower-type treatment processes. A large stirring device is generally set in the middle to achieve full mixing through frequent stirring, supplemented by forced ventilation and oxygen supply. Compared with the traditional strip-stack treatment process, it is more efficient. The drum-type process is relatively limited in processing scale due to the manufacturing cost and difficulty of the drum structure. The tower-type treatment process can adopt reinforced concrete structure as the main body, which has low construction cost and adjustable scale size, and is more adaptable, which can meet the current treatment needs of huge amounts of perishable waste. Due to the high material stacking in the tower treatment process, the currently commonly used fixed center axis blade stirring system drives the stirring shaft to rotate through a motor, which has uneven stirring, low efficiency and high failure rate, and cannot adapt to the operation of large-scale biological drying systems. Utility Model Content

[0004] The utility model aims to provide a stirring system which can realize efficient stirring of perishable garbage and improve the processing efficiency and quality.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A novel bio-drying and stirring system for perishable garbage comprises a fermentation silo body arranged inside a cylinder of an outer shell of a tower treatment device, wherein the stirring system comprises a layered stirring unit arranged in the fermentation silo body of the cylinder, wherein each layer of the stirring unit is provided with a support beam in the fermentation silo body, wherein the end of the support beam is connected to the inner wall of the cylinder, and a material passing channel is arranged on the support beam for connecting each layer of the stirring units up and down; a rotating device is arranged on the top of the support beam, and the rotating device is located in the middle area of ​​the stirring unit; a slide rail is arranged on the inner wall of the cylinder, and a spacing space is provided between the slide rail and the top of the support beam; a discharge port which can be opened or closed is arranged on the cylinder wall of the cylinder at each layer of the stirring unit, a blade-type auger is arranged between the rotating device and the slide rail, and a pushing part is arranged on the blade-type auger for pushing the material to the discharge port along its axial direction; a feed port is arranged on the top of the tower treatment device, and a feeding device connected to the feed port is arranged outside the discharge port for discharging the material of each layer of the stirring unit and mixing it with the unprocessed material pre-entered into the fermentation silo body.

[0007] Furthermore: a material support area is arranged at the top of the support beam in the surrounding area of ​​the rotating device.

[0008] Furthermore: a driving device is provided on the rotating device or the slide rail, and the driving device is connected to the blade auger power.

[0009] Furthermore: the driving device is installed in the rotating device, one end of the blade auger is connected to the driving device, and the other end of the blade auger is connected to a sliding component that cooperates with the slide rail.

[0010] Furthermore: the blade-type auger comprises a rotating shaft, both ends of which are respectively matched with a rotating device and a slide rail, and a spiral pushing component is arranged on the outer surface of the rotating shaft.

[0011] Furthermore: the spiral pushing component includes a plurality of blades, and there is a space between adjacent blades.

[0012] Furthermore: the bottom elevation of the slide rail is higher than the top elevation of the discharge port; the top elevation of the support beam is not lower than the bottom elevation of the discharge port.

[0013] Furthermore: the rotation center of the rotating device is coaxial with the central axis of the cylinder; the slide rail is an annular track, and the center of the slide rail is also coaxial with the central axis of the cylinder.

[0014] Furthermore: the feeding device comprises a feeding track, the inlet of the feeding track is connected to the discharge ports on the same side of each fermentation unit, and the outlet of the feeding track is connected to the feed port.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model uses a layered blade-type auger that is supported by a rotating device and a slide rail to drive periodic stirring, and cooperates with the layered staggered opening of the discharge port, and frequent discharge and feeding to achieve sufficient mixing in the fermentation bin. In addition, the cross support beams arranged in layers in the tower treatment device not only support the rotating device and the blade-type auger, but also play a certain supporting role for the fermentation materials on the upper part, reducing the squeezing of the fermentation materials at the bottom, which can significantly improve the aeration effect, effectively improve the efficiency and quality of bio-drying of perishable garbage, and can be applied to large-scale bio-drying treatment of perishable garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram showing the overall structure of the stirring system of the utility model and its internal space portion;

[0018] Figure 2 This utility model Figure 1 A is an enlarged schematic diagram;

[0019] Figure 3 It is a top view of the stirring system of the utility model;

[0020] Figure 4 It is a front view of the stirring system of the utility model;

[0021] Figure 5 It is an operation schematic diagram of the stirring system of the utility model.

[0022] The markings in the accompanying drawings are: 1-mixing unit, 101-blade auger, 1011-blade, 1012-rotating shaft, 102-rotating device, 1021-driving device, 103-support beam, 104-slide rail, 2-cylinder, 3-discharge port, 4-feed port. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] like Figure 1-5As shown, a novel bio-drying and stirring system for perishable waste is provided, wherein a fermentation bin is provided inside a cylinder 2 of an outer shell of a tower treatment device, wherein the bottom surface of the cylinder 7 is round and the whole is in the shape of a long cylinder; the stirring system comprises a layered stirring unit 1 provided in the fermentation bin of the cylinder 2, so that the stirring units 1 are arranged in groups and layers along the height direction of the cylinder 2 of the tower treatment device, and the number of layers is reasonably set according to the processing amount of perishable waste and the size of the tower treatment device. Except for one layer provided at the bottom, the other layers are all provided at equal points of the height of the tower treatment device, so as to divide the fermentation bin into a plurality of fermentation units 1 along the height direction, wherein the top layer and the bottom layer are respectively referred to as the top fermentation unit and the bottom fermentation unit, and the other intermediate layers are referred to as the middle fermentation unit; support beams 103 are provided in the fermentation bin of each layer of stirring unit 1 The end of the support beam 103 is connected to the inner wall of the cylinder 2, and a material passing channel is provided on the support beam 103 for connecting each layer of the stirring units 1 up and down; a rotating device 102 is provided on the top of the support beam 103, and the rotating device 102 is located in the middle area of ​​the stirring unit 1; a slide rail 104 is provided on the inner wall of the cylinder 2, and there is a spacing space between the slide rail 104 and the top of the support beam 103, and the cylinder wall of the cylinder 2 is provided with an openable or closed discharge port 3 at each layer of the stirring unit 1, and a blade auger 101 is provided between the rotating device 102 and the slide rail 104. The blade auger 101 is provided with a pushing part for pushing the material to the discharge port 3 along its axial direction, and the discharge port 3 and the slide rail 104 are staggered to ensure the stability of the blade auger 101 in the turning process around the rotation center of the rotating device 102.

[0025] Among them, the top of the support beam 103 sets a material support area around the rotating device 102. While supporting the rotating device 102 and the blade-type auger 101, it also plays a certain supporting role on the fermentation material above the top of the beam, reduces the accumulation and squeezing of the fermentation material at the bottom, and provides favorable conditions for the lower fermentation unit in the subsequent aeration process.

[0026] In this embodiment, a feed port 4 is provided at the top of the tower processing device, and a feeding device connected to the feed port 4 is provided outside the discharge port 3, which is used to discharge the materials of the stirring units 1 of each layer and mix them with the unprocessed materials pre-entered into the fermentation bin. At the same time, the feeding device includes a feeding track, the inlet of the feeding track is connected to the discharge port 3 on the same side of each fermentation unit, and the outlet of the feeding track is connected to the feed port 4. Among them, the discharge ports 3 are arranged on the symmetry axis of each layer, and the number of discharge ports 3 arranged on each layer is determined according to the diameter of the cylinder 2 of the tower processing device, preferably 4-6 are arranged, and they are evenly and symmetrically arranged around the tower processing device, such as Figure 3 As shown, a discharge port 3 is arranged on each of the upper, lower, left and right central axes, and 4 are arranged on each layer.

[0027] At the same time, the feeding track includes a hopper, a guide rail and a lifting device. The guide rail is arranged vertically on the outside of the cylinder 2, and the hopper is installed in the guide rail. The connection between the hopper and the lifting device drives the hopper to move to the target layer discharge port 3 for the required discharge. By opening the baffle at the discharge port 3, part of the material in the fermentation bin is moved to the hopper under the driving action of the blade auger 101, and moved to the top under the action of the lifting device, so that it can be mixed with fresh perishable garbage and then enter the fermentation bin again through the feed port 4 for stirring. Therefore, the layered blade auger 101 in this embodiment is supported and driven by the rotating device 102 and the slide rail 103 to stir periodically, and the frequent discharge and feeding of materials are coordinated with the layered staggered discharge ports to achieve full mixing of the materials in the fermentation bin.

[0028] In this embodiment, in order to drive the blade auger 101 to rotate around the upper rotating shaft 1012 and the rotation center of the rotating device 102 in the mixing unit 1, a driving device 1021 may be provided on the rotating device 102 or the slide rail 104, and the driving device 1021 is connected to the blade auger 101. In this embodiment, the driving device 1021 is installed in the rotating device 102, one end of the blade auger 101 is connected to the driving device 1021, and the other end of the blade auger 101 is connected to a sliding component that cooperates with the slide rail 104.

[0029] The blade auger 101 includes a rotating shaft 1012 , both ends of which are matched with the rotating device 102 and the slide rail 104 respectively, and a spiral pushing component is arranged on the outer surface of the rotating shaft 1012 .

[0030] It can be understood that based on the above content, the driving device 1021 can be provided with two independent driving devices, one of which is a first driving device for rotating the rotating shaft 1012 of the blade-type auger 101, and the other is a second driving device for rotating the rotating device 102 around its central axis; of course, it can also be a set of linkage driving devices, which can adopt the existing gear meshing transmission, which will not be elaborated in detail here.

[0031] It should be noted that if a driving device 1021 is provided in the sliding component to enable the blade-type auger 101 to rotate around its rotating shaft 1012, two sets of independent driving devices can also be provided, one of which is a first driving device for rotating the rotating shaft 1012 of the blade-type auger 101, and the other is a second driving device for driving the sliding component to move on the slide rail 104. The rotating device 102 needs to be equipped with a steering structure accordingly (a steering shaft coaxial with the central axis of the cylinder 2 can be used, and the rotating shaft 1012 is fixed on the steering shaft through an intermediate piece, and the rotating shaft 1012 is rotationally matched with the intermediate piece, and the steering shaft is rotationally matched with the support beam 103) to drive the rotating shaft 1012 to rotate around the rotation center of the rotating device 102.

[0032] The driving device 1021 may preferably be driven by a motor and may be equipped with gears and other structures as required.

[0033] In this embodiment, the spiral pushing component includes a plurality of blades 1011 , and there is a space between adjacent blades 1011 , so that the blades 1011 can not only stir the material but also push the material toward the discharge port 3 during operation.

[0034] In this embodiment, the rotation center of the rotating device 102 is coaxial with the central axis of the cylinder 2; the slide rail 104 is a ring-shaped track, and the center of the slide rail 104 is also coaxial with the central axis of the cylinder 2. In addition, because the bottom elevation of the slide rail 104 is higher than the top elevation of the discharge port 3, the slide rail 104 is arranged above the discharge port 3 to prevent the blade auger 101 from having unnecessary collisions with the stopper at the discharge port 3 during operation.

[0035] The support beams 103 in this embodiment are arranged in a cross shape, and the top of the support beam 103 is at the same elevation as the bottom of the discharge port 105 .

[0036] See also Figure 1-5 When the tower treatment device is stirred by the stirring system, the specific contents are as follows:

[0037] During the operation of the tower processing device, the blade augers 101 of each layer are supported and driven by the rotating device 102 and the slide rail 104. At the same time, they rotate around the central axis of the cylinder 2 of the tower processing device to periodically stir the materials. When the blade augers 101 rotate around the center to above the discharge port 3, the corresponding baffle door of the discharge port 3 is opened. Since the blades 1011 of the blade augers 101 are spirally arranged, the materials can be pushed outward to start discharging. The blade augers 101 of each layer rotate in the same direction at intervals, and the corresponding discharge ports 105 of each layer are opened alternately. The discharge ports 105 at the opposite positions will not be opened at the same time, and each layer starts discharging at the same time. The discharge from each layer is lifted to the top of the tower treatment device by the lifting equipment, mixed with fresh perishable garbage, and then the mixed materials are transported to the feed port to scatter the mixed materials in the top fermentation unit of the fermentation bin; thereafter, as the blade-type augers 101 of each layer continue to rotate around the central axis of the cylinder 2 of the tower treatment device, the discharge ports 3 of each layer are opened in turn, and the discharging and feeding processes are repeated to achieve continuous mixing of materials and improve processing efficiency and quality.

[0038] The above embodiment is only a preferred technical solution of the present invention. Those skilled in the art should understand that the technical solutions or parameters in the embodiments can be modified or replaced without departing from the principle and essence of the present invention, and all should be included in the protection scope of the present invention.

Claims

1. A novel bio-drying and stirring system for perishable waste, wherein a fermentation chamber is arranged inside a cylinder (2) of an outer shell of a tower treatment device, and is characterized in that: The stirring system comprises a layered stirring unit (1) arranged in a fermentation bin of a cylinder (2), each layer of the stirring unit (1) being provided with a support beam (103) in the fermentation bin, the end of the support beam (103) being connected to the inner wall of the cylinder (2), and a material passing channel being provided on the support beam (103) for connecting each layer of the stirring units (1) up and down; A rotating device (102) is arranged on the top of the supporting beam (103), and the rotating device (102) is located in the middle area of ​​the stirring unit (1); a slide rail (104) is arranged on the inner wall of the cylinder (2), and a spacing space is provided between the slide rail (104) and the top of the supporting beam (103); a discharge port (3) that can be opened or closed is provided on the cylinder wall of the cylinder (2) at each layer of the stirring unit (1); and a blade-type auger (101) is arranged between the rotating device (102) and the slide rail (104); A feed port (4) is arranged at the top of the tower-type processing device, and a feeding device connected to the feed port (4) is arranged outside the discharge port (3) for discharging the materials from the stirring units (1) at each layer and mixing them with the unprocessed materials pre-entered into the fermentation bin.

2. A novel bio-drying and mixing system for perishable waste according to claim 1, characterized in that: The top of the support beam (103) is provided with a material support area in the surrounding area of ​​the rotating device (102).

3. A novel bio-drying and mixing system for perishable waste according to claim 1, characterized in that: A driving device (1021) is provided on the rotating device (102) or the slide rail (104), and the driving device (1021) is power-connected to the blade-type auger (101).

4. A novel bio-drying and mixing system for perishable waste according to claim 3, characterized in that: The driving device (1021) is installed in the rotating device (102), one end of the blade auger (101) is connected to the driving device (1021), and the other end of the blade auger (101) is connected to a sliding component that cooperates with the slide rail (104).

5. The novel bio-drying and mixing system for perishable waste according to claim 1 is characterized in that: The blade-type auger (101) comprises a rotating shaft (1012), two ends of which are respectively matched with a rotating device (102) and a slide rail (104), and a spiral pushing component is arranged on the outer surface of the rotating shaft (1012).

6. A novel bio-drying and mixing system for perishable waste according to claim 5, characterized in that: The spiral pushing component comprises a plurality of blades (1011), and there is a space between adjacent blades (1011).

7. A novel bio-drying and mixing system for perishable waste according to claim 1, characterized in that: The bottom elevation of the slide rail (104) is higher than the top elevation of the discharge port (3); and the top elevation of the support beam (103) is not lower than the bottom elevation of the discharge port (3).

8. The novel bio-drying and mixing system for perishable waste according to claim 1 is characterized by: The rotation center of the rotating device (102) is coaxial with the central axis of the cylinder (2); the slide rail (104) is an annular track, and the center of the slide rail (104) is also coaxial with the central axis of the cylinder (2).

9. A novel bio-drying and mixing system for perishable waste according to claim 1, characterized in that: The feeding device comprises a feeding track, the inlet of the feeding track is connected to the discharge port (3) on the same side of each fermentation unit, and the outlet of the feeding track is connected to the feed port (4).

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