Agricultural and forestry waste resource fermentation treatment equipment

Abstract

The application discloses a fermentation treatment equipment for agricultural and forestry waste resource, which comprises a shell, a plurality of fermentation cabins, a ring-shaped material conveying mechanism, a feeding mechanism and a discharging mechanism. All the fermentation cabins are arranged in the shell in a transverse arrangement, and the bottom of each fermentation cabin is provided with a conveying agitator. The ring-shaped material conveying mechanism is arranged around all the fermentation cabins and comprises a conveying groove and a scraper chain. The scraper chain is driven to rotate by a driving sprocket fixed on a transition shaft. The output end of a third motor is connected with coaxially arranged first and second power output sprockets. The shaft end of each conveying agitator is connected with an agitator sprocket through a clutch mechanism. The first power output sprocket is connected with one of the agitator sprockets through a first transmission chain to establish a power transmission relationship. The power transmission relationship is established between adjacent agitator sprockets through a conveying agitator power chain. The second power output sprocket is connected with a transition sprocket on the transition shaft through a second transmission chain to establish a power transmission relationship.

Description

Technical Field

[0001] This invention relates to the field of waste resource recycling equipment technology, and in particular to a fermentation treatment equipment for agricultural and forestry waste resource recycling. Background Technology

[0002] Aerobic fermentation of decomposable organic matter such as garden pruning waste and orchard fallen leaves and branches is an important way to reduce and harmlessly treat solid waste. This process usually involves multiple fermentation chambers operating in a row to increase processing capacity.

[0003] In the prior art, patent CN207792140U discloses a vertical annular multi-compartment feeding and discharging device for biodegradable organic granules. This device includes an annularly arranged conveyor trough, scraper chain, tensioning mechanism, opening and closing valve, and guide plates. The conveyor trough consists of an upper horizontal conveyor trough, a lower horizontal conveyor trough, a carrying vertical conveyor trough, an empty vertical conveyor trough, and several arc-shaped troughs connected end-to-end to form a rounded rectangular annular conveying system. The drive sprocket is driven by a reduction motor, which drives the scraper chain in a cyclical motion to convey the material.

[0004] Patent CN205347262U discloses an integrated OAR treatment device, which takes a single fermentation tank as the core and integrates a hanging bucket elevator type feeding device, a shaftless discharge screw conveyor, four sets of rotary cutter roller turning system, biological deodorization, spraying and PLC automatic control system.

[0005] The aforementioned existing technologies have the following problems in practical engineering:

[0006] First, the conveying auger at the bottom of the fermentation chamber discharges the clinker from the chamber to the lower horizontal conveyor trough of the circular conveyor system. The scraper chain in the lower horizontal conveyor trough is responsible for scraping and conveying the material to the outlet of the device. If the discharge rate of the conveying auger does not match the scraping and conveying rate of the scraper chain, two abnormal operating conditions will occur: First, the auger discharges too quickly while the scraper conveys too slowly, causing the material to accumulate and block the conveyor trough below the discharge port; second, the auger discharges too slowly while the scraper conveys too quickly, resulting in too little material carried on the scraper and low discharge efficiency.

[0007] Secondly, when not in operation, the feed hopper and discharge hopper are usually in an open state, protruding outwards from the front face of the device. This not only affects the overall appearance of the machine, but also provides a channel for flies, insects, and rodents to enter the device, contaminating the fermentation materials and the working environment.

[0008] Third, scraper chains tend to elongate over long-term use, requiring a tensioning mechanism to compensate for this elongation. However, CN207792140U lacks a properly designed tensioning mechanism. Furthermore, in CN207792140U, the scraper chain undergoes directional transitions from horizontal to vertical or vice versa at the curved groove, with the chain's turning points relying solely on the groove's inner wall for constraint. Under load, this results in high friction between the chain and the groove's inner wall, leading to dual wear on both the chain and the groove over extended periods. Summary of the Invention

[0009] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an agricultural and forestry waste resource-based fermentation treatment equipment that can achieve strict matching of the scraping and conveying speed of the discharge conveying auger and the annular material conveying mechanism for each fermentation chamber, and can operate smoothly and with a stable conveying flow.

[0010] Technical solution: To achieve the above objectives, the agricultural and forestry waste resource utilization fermentation treatment equipment of the present invention includes an outer shell, multiple fermentation chambers, an annular material conveying mechanism, a feeding mechanism, and a discharging mechanism.

[0011] All the fermentation chambers are arranged laterally within the outer shell, and each fermentation chamber is equipped with a conveying auger at its bottom; the annular material conveying mechanism is arranged around all the fermentation chambers along a vertical plane, and includes a conveying trough and a scraper chain located within the conveying trough; the scraper chain is driven by a drive sprocket fixed on a transition shaft; the conveying trough includes an upper trough, a lower trough, an ascending trough, a descending trough, and four arc-shaped transition troughs connecting adjacent troughs.

[0012] The output end of the third motor is connected to the first power output sprocket and the second power output sprocket arranged coaxially in parallel through a speed reduction device.

[0013] Each of the conveying augers has an auger sprocket connected to its shaft end via a clutch mechanism; the first power output sprocket establishes a power transmission relationship with one of the auger sprockets via a first transmission chain; adjacent auger sprockets establish a power transmission relationship via a conveying auger power chain.

[0014] The second power output sprocket establishes a power transmission relationship with the transition sprocket on the transition shaft through the second transmission chain.

[0015] The gear ratio of the first power output sprocket, the second power output sprocket, the transition sprocket, and the drive sprocket is set such that, at the given output speed of the third motor, the material discharge of the conveying auger and the material scraped by the scraper chain meet a preset ratio.

[0016] Furthermore, the clutch mechanism includes a fixing member fixed to the shaft end of the conveying auger, a rotating member fixed to the auger sprocket, a sliding member that can slide axially relative to the rotating member, and a clutch drive mechanism that drives the sliding member to slide relative to the rotating member; the sliding member and the rotating member are connected by a spline sliding fit.

[0017] The sliding member and the fixing member each have a first claw plate and a second claw plate on their opposite end faces;

[0018] The sliding member has an annular groove; the clutch drive mechanism includes a rotating fork and a drive cylinder for driving the rotating fork to rotate; a roller is mounted on the rotating fork and the roller is placed in the annular groove.

[0019] Furthermore, the feeding mechanism is installed above the lower section of the conveying trough, and the lower section of the trough has an upward-opening material inlet at the installation position corresponding to the feeding mechanism; the feeding mechanism includes a receiving trough fixed relative to the lower section of the trough, and also includes a mounting frame, a feeding hopper hinged to the mounting frame via a first hinge member, and a first spring connecting the mounting frame and the feeding hopper;

[0020] The mounting frame is provided with a first arc-shaped groove, and the feed hopper is provided with a guide element that extends into the first arc-shaped groove. The two ends of the first arc-shaped groove limit the rotation angle range of the feed hopper.

[0021] Under the action of the first spring, the feed hopper maintains its side wall upright and is flush with the front end of the outer shell when it is not in operation.

[0022] Furthermore, the discharge mechanism is installed below the upper section of the trough, and the upper section of the trough has a downward-opening material outlet at the installation position corresponding to the discharge mechanism;

[0023] The discharge mechanism includes a gate mechanism, a discharge pipe, a discharge hopper, a connecting frame, and a second spring;

[0024] The discharge pipe is installed below the gate mechanism, the connecting frame is fixed relative to the discharge pipe, the discharge hopper is rotatably connected to the connecting frame through a second hinge, the connecting frame is provided with a second arc-shaped groove, and the discharge hopper is provided with a limiting unit passing through the second arc-shaped groove; the second spring connects the connecting frame and the discharge hopper.

[0025] Furthermore, the gate-blocking mechanism includes a mechanism base fixed relative to the upper section of the groove, a gate capable of translating relative to the mechanism base, and a translation drive unit for driving the gate to translate. The mechanism base includes a square frame, with a portion of the upper side of the square frame covered by a cover plate and the other portion open vertically for material to pass through. The translation drive unit is installed on the lower side of the cover plate. The gate consists of an L-shaped flat baffle section and a vertical baffle section. The translation drive unit is connected to the vertical baffle section and drives the gate to switch between an open and closed state. The translation drive unit can be a cylinder or an electric push rod. In the open state, the vertical baffle section and the three side walls of the square frame enclose a material discharge channel. In the closed state, the flat baffle section completely blocks the open portion on the upper side of the square frame, and the end of the vertical baffle section contacts the inner wall of the square frame to achieve lateral sealing.

[0026] Furthermore, the internal space of the outer shell is divided into a front region and a rear region;

[0027] The fermentation chamber, the annular material conveying mechanism, the feeding mechanism, the discharging mechanism, and the main body of the third motor are all arranged in the front area;

[0028] The first motor, the second motor, the reducer and the transmission chain corresponding to the first motor and the second motor that drive the stirring mechanism in the fermentation chamber are all arranged in the rear area.

[0029] The output shaft of the third motor extends rearward to the rear region, and the first power output sprocket and the second power output sprocket are mounted on the rear end of the output shaft;

[0030] The rear area is equipped with a maintenance passage for workers to access.

[0031] Furthermore, an exhaust fan is installed above the side wall of the fermentation chamber, and the exhaust ends of all the exhaust fans are connected to the deodorization mechanism through exhaust pipes.

[0032] In addition, the side wall of the fermentation chamber is provided with aeration ports, which are connected to a booster pump via aeration pipes. The feeding mechanism is also provided with a liquid supply port, which is connected to a liquid supply device via a pipe.

[0033] Furthermore, the cross-sectional width of the descending section of the conveying trough is greater than the cross-sectional width of the upper section, the lower section, and the ascending section.

[0034] The drive sprocket and driven sprocket corresponding to the scraper chain are installed at the lower end of the descending section groove. The driven sprocket is installed on the outer shell through a tensioning mechanism. The tensioning displacement direction of the tensioning mechanism is along the width direction of the descending section groove.

[0035] The cross-sectional width of the descending section groove can be 80 to 150 mm wider than the other three sections, with the specific increment depending on the tension displacement stroke; the tensioning mechanism can adopt known forms such as spring tensioning or screw tensioning, and the widened descending section groove can provide sufficient displacement space for the scraper chain passing through it.

[0036] Furthermore, two arc-shaped transition troughs located at the upper and lower ends of the rising section of the conveying trough are respectively fixed with fan-shaped plates; the arc surface of the fan-shaped plate extends into the inner cavity of the arc-shaped transition trough and extends along the inner side of the turning trajectory of the scraper chain, providing inner support for the scraper chain at the turning section.

[0037] Beneficial effects: The agricultural and forestry waste resource utilization fermentation treatment equipment of the present invention has the following beneficial effects:

[0038] (1) The agricultural and forestry waste resource utilization fermentation treatment equipment of the present invention uses a single third motor to synchronously drive the conveying auger and scraper chain. By controlling the engagement of different clutch mechanisms, different fermentation chambers can discharge materials, and the discharge amount of each conveying auger is strictly matched with the material conveying amount of the annular material conveying mechanism. Synchronization is not required through the control system, thus avoiding the complexity of multi-motor synchronous control. The material flow rate conveyed by the annular material conveying mechanism is stable, and there will be no situation where the amount of material in the unit length of the conveying trough participating in the material conveying is sometimes more and sometimes less. This avoids blockage caused by excessive discharge and affects efficiency by insufficient discharge.

[0039] (2) The clutch mechanism of the present invention realizes the continuity of the chain drive path. Even if the corresponding conveying auger is not working, the power can still be transmitted backward along the rotating parts, so that the conveying auger of each fermentation chamber can be flexibly connected with the annular material conveying mechanism to carry out the discharge conveying operation. In addition, by using the drive cylinder to move the rotating fork, the first claw plate and the second claw plate are rigidly engaged by the pushing of the roller in the annular groove, ensuring the reliable connection of the high torque discharge power.

[0040] (3) Through the equipment layout, the front area is concentrated with fermentation operation and material handling related structures, which is convenient for operators to carry out daily operations; the rear area is concentrated with easily damaged transmission components, and daily maintenance can be completed through the maintenance channel; the arrangement of the third motor body in front and the first power output sprocket and the second power output sprocket in the rear enables it to provide power to the front conveying auger and the transition shaft near the rear at the same time. Attached Figure Description

[0041] Figure 1 An external view of equipment for the resource-based fermentation treatment of agricultural and forestry waste;

[0042] Figure 2A top-view structural diagram of equipment for the resource-based fermentation treatment of agricultural and forestry waste;

[0043] Figure 3 for Figure 2 AA sectional view of the structure;

[0044] Figure 4 A three-dimensional structural diagram of equipment for the resource-based fermentation treatment of agricultural and forestry waste;

[0045] Figure 5 This is a structural diagram of the feeding mechanism and the discharging mechanism;

[0046] Figure 6 This is a structural diagram of the door blocking mechanism;

[0047] Figure 7 for Figure 4 Enlarged structural diagram of section B;

[0048] Figure 8 This is a structural diagram of the clutch mechanism.

[0049] Figure 9 This is a partial exploded view of the clutch mechanism.

[0050] In the diagram: 1-Outer shell; 11-Front side area; 12-Rear side area; 12a-Maintenance passage; 2-Fermentation chamber; 21-Chamber body; 22-Upper stirring mechanism; 23-Lower stirring mechanism; 24-Conveying auger; 24a-Auger sprocket; 24b-Conveying auger power chain; 3-Annular material conveying mechanism; 31-Upper section trough; 32-Lower section trough; 33-Rising section trough; 34-Descending section trough; 35-Arc-shaped transition trough; 35a-Fan-shaped plate; 36-Scraper chain; 37-Transition shaft; 37a-Transition sprocket; 38-Drive sprocket; 39-Driven sprocket; 39a-Tensioning mechanism; 4-Feeding mechanism; 41-Receiving trough; 42-Mounting frame; 42a-First hinge; 42b-First arc-shaped trough; 43-Feeding hopper; 43a-Guiding element; 44-First spring; 5-Discharge mechanism; 51-Gate blocking mechanism; 51a-Mechanism base; 51b-Gate blocking; 51c-Translation drive unit; 51d-Flat baffle section; 51e-Vertical baffle section; 52-Discharge pipe; 53-Discharge hopper; 53a-Limiting unit; 54-Connecting frame; 54a-Second arc groove; 55-Second spring; 61-First motor; 61a-Reducer; 61b-First power transmission chain; 61c-Agitator sprocket; 61d-Agitator synchronization chain; 61e-Agitator clutch; 62-Second motor; 62a-Reducer; 62b-Second power transmission chain; 63-Third motor; 63a-First power output sprocket; 63b-Second power output sprocket; 63c-First transmission chain; 63d-Second transmission chain; 7-Clutch mechanism; 71-Fixing component; 71a-Second claw disc; 72-Rotating component; 72a - Spline; 73 Sliding component; 73a First claw plate; 73b Ring groove; 74 Rotating fork; 75 Drive cylinder; 76 Roller; 81 Exhaust fan; 82 Deodorization mechanism. Detailed Implementation

[0051] The invention will now be further described with reference to the accompanying drawings.

[0052] like Figures 1 to 4 The agricultural and forestry waste resource utilization fermentation treatment equipment shown includes an outer shell 1, multiple fermentation chambers 2, a ring material conveying mechanism 3, a feeding mechanism 4, and a discharging mechanism 5.

[0053] All the fermentation chambers 2 are arranged laterally inside the outer shell 1, and each fermentation chamber 2 is provided with a conveying auger 24 at its bottom; the annular material conveying mechanism 3 is arranged around all the fermentation chambers 2 along a vertical plane, and includes a conveying trough and a scraper chain 36 located in the conveying trough; the scraper chain 36 is driven by a drive sprocket 38 fixed on a transition shaft 37; the conveying trough includes an upper trough 31, a lower trough 32, an ascending trough 33, a descending trough 34, and four arc-shaped transition troughs 35 connecting adjacent troughs.

[0054] like Figure 4 As shown, the output end of the third motor 63 is connected to the first power output sprocket 63a and the second power output sprocket 63b, which are arranged coaxially and in parallel, through a reduction gear.

[0055] Each of the conveying augers 24 has an auger sprocket 24a connected to its shaft end via a clutch mechanism 7; the first power output sprocket 63a establishes a power transmission relationship with one of the auger sprockets 24a via a first transmission chain 63c; adjacent auger sprockets 24a establish a power transmission relationship via a conveying auger power chain 24b.

[0056] The second power output sprocket 63b establishes a power transmission relationship with the transition sprocket 37a on the transition shaft 37 through the second transmission chain 63d.

[0057] The gear ratio of the first power output sprocket 63a, the second power output sprocket 63b, the transition sprocket 37a, and the drive sprocket 38 is set such that, at the given output speed of the third motor 63, the material discharge rate of the conveying auger 24 and the material scraping rate of the scraper chain 36 meet a preset ratio. Generally, the material discharge rate of the conveying auger 24 and the material scraping rate of the scraper chain 36 meet a preset ratio of 1:1.2-1:6. By adjusting the sprocket gear ratio, the above preset ratio can be determined once during the device assembly stage, and subsequent operation does not require synchronous control by the control system.

[0058] The agricultural and forestry waste resource utilization fermentation treatment equipment of the present invention uses a single third motor 63 to synchronously drive the conveying auger 24 and scraper chain 36. By controlling the engagement of different clutch mechanisms 7, different fermentation chambers 2 can discharge materials, and the discharge amount of each conveying auger 24 is strictly matched with the material conveying amount of the annular material conveying mechanism 3. Synchronization is not required through a control system, avoiding the complexity of multi-motor synchronous control. It also makes the material flow rate conveyed by the annular material conveying mechanism 3 stable, and avoids the situation where the amount of material per unit length of the conveying trough participating in the material conveying is more or less, thus avoiding blockage caused by excessive discharge and affecting efficiency by insufficient discharge.

[0059] like Figure 8 and Figure 9 As shown, the clutch mechanism 7 includes a fixing member 71 fixed to the shaft end of the conveying auger 24, a rotating member 72 fixed to the auger sprocket 24a, a sliding member 73 that can slide axially relative to the rotating member 72, and a clutch drive mechanism that drives the sliding member 73 to slide relative to the rotating member 72; the sliding member 73 and the rotating member 72 are slidably engaged by a spline 72a.

[0060] The sliding member 73 and the fixing member 71 each have a first claw disk 73a and a second claw disk 71a on their opposite end faces;

[0061] The sliding member 73 has an annular groove 73b; the clutch drive mechanism includes a rotating fork 74 and a drive cylinder 75 for driving the rotating fork 74 to rotate; a roller 76 is mounted on the rotating fork 74 and the roller 76 is placed in the annular groove 73b.

[0062] The clutch mechanism 7 of this invention achieves continuity of the chain drive path. Even if the corresponding conveying auger is not working, the power can still be transmitted backward along the rotating component 72, enabling each fermentation chamber 2's conveying auger 24 to flexibly connect with the annular material conveying mechanism 3 for material discharge conveying operations. In addition, by using the drive cylinder 75 to actuate the rotating fork 74, the roller 76 pushes within the annular groove 73b, achieving rigid engagement between the first claw plate 73a and the second claw plate 71a, ensuring reliable connection of high-torque discharge power.

[0063] Preferably, the feeding mechanism 4 is installed above the lower section trough 32 in the conveying trough, and the lower section trough 32 has an upward-opening material inlet at the installation position corresponding to the feeding mechanism 4; for example Figure 5 As shown, the feeding mechanism 4 includes a receiving groove 41 fixed relative to the lower section groove 32, and also includes a mounting frame 42, a feeding hopper 43 hinged to the mounting frame 42 via a first hinge member 42a, and a first spring 44 connecting the mounting frame 42 and the feeding hopper 43.

[0064] The mounting bracket 42 is provided with a first arc-shaped groove 42b, and the feed hopper 43 is provided with a guide element 43a extending into the first arc-shaped groove 42b. The two ends of the first arc-shaped groove 42b limit the rotation angle range of the feed hopper 43.

[0065] Under the action of the first spring 44, the feed hopper 43 keeps its side wall upright and flush with the front end of the outer shell 1 when it is not in operation.

[0066] The first spring 44 can be a helical tension spring or a pneumatic spring, both of which can enable the feed hopper 43 to automatically reset after the external force is removed. In the working state, the operator pulls the feed hopper 43 outward to the other end of the first arc-shaped groove 42b. At this time, the opening of the feed hopper 43 faces upward, which is convenient for pouring materials.

[0067] With the above structure, the feed hopper 43 is flush with the front end of the outer shell 1 when not in use, which not only avoids the appearance of the protruding structure, but also prevents flies and rodents from entering the device through the vertical side wall; the first spring 44 makes the feed hopper 43 automatically reset after use without manual intervention.

[0068] like Figure 5 As shown, the discharge mechanism 5 is installed below the upper trough 31, and the upper trough 31 has a downward-opening material outlet at the installation position corresponding to the discharge mechanism 5.

[0069] The discharge mechanism 5 includes a gate mechanism 51, a discharge pipe 52, a discharge hopper 53, a connecting frame 54, and a second spring 55;

[0070] The discharge pipe 52 is installed below the gate mechanism 51. The connecting frame 54 is fixed relative to the discharge pipe 52. The discharge hopper 53 is rotatably connected to the connecting frame 54 through a second hinge. The connecting frame 54 is provided with a second arc-shaped groove 54a. The discharge hopper 53 is provided with a limiting unit 53a that passes through the second arc-shaped groove 54a. The second spring 55 connects the connecting frame 54 and the discharge hopper 53.

[0071] When not in operation, the discharge hopper 53 has one side wall that remains upright and flush with the front end of the outer casing 1, serving to prevent insects and rodents and maintain a neat appearance. During discharge, it flips to the receiving position by overcoming the restoring force of the second spring 55. After discharge is completed, the external force applied to the discharge hopper 53 disappears, and the second spring 55 returns the discharge hopper 53 to its original position.

[0072] like Figure 6 As shown, the gate blocking mechanism 51 includes a mechanism base 51a fixed relative to the upper section groove 31, a gate 51b capable of translating relative to the mechanism base 51a, and a translation drive unit 51c for driving the gate 51b to translate. The mechanism base 51a includes a square frame, with a portion of the upper side of the square frame covered by a cover plate and the other portion open at the top and bottom for material to pass through. The translation drive unit 51c is installed on the lower side of the cover plate. The gate 51b consists of an L-shaped flat baffle portion 51d and a vertical baffle portion 51e. The translation drive unit 51c is connected to the vertical baffle portion 51e and drives the gate 51b to switch between an open state and a closed state. The translation drive unit 51c can be a cylinder or an electric push rod. In the open state, the vertical baffle 51e and the three side walls of the square frame enclose the material discharge channel. In the closed state, the flat baffle 51d completely blocks the hollow part on the upper side of the square frame, and the end of the vertical baffle 51e contacts the inner wall of the square frame to achieve lateral sealing. With the above structure, the gate mechanism 51 of the discharge mechanism 5 completely blocks the material outlet of the upper trough 31 when no material is discharged, thus preventing material leakage during normal operation of the annular material conveying mechanism 3.

[0073] Preferably, the internal space of the outer shell 1 is divided into a front region 11 and a rear region 12;

[0074] The main bodies of the fermentation chamber 2, the annular material conveying mechanism 3, the feeding mechanism 4, the discharging mechanism 5, and the third motor 63 are all arranged in the front area 11;

[0075] The first motor 61, the second motor 62, the reducer and transmission chain corresponding to the first motor 61 and the second motor 62 that drive the stirring mechanism in the fermentation chamber 2 are all arranged in the rear area 12.

[0076] The output shaft of the third motor 63 extends rearward to the rear region 12, and the first power output sprocket 63a and the second power output sprocket 63b are mounted on the rear end of the output shaft;

[0077] The rear area 12 is provided with a maintenance passage 12a for workers to enter.

[0078] Specifically, each fermentation chamber 2 has an agitation mechanism including an upper agitation mechanism 22 and a lower agitation mechanism 23; the first motor 61 drives all the upper agitation mechanisms 22 through a reducer 61a and a first power transmission chain 61b, and the second motor 62 drives all the lower agitation mechanisms 23 through a reducer 62a and a second power transmission chain 62b; the first power transmission chain 61b and the second power transmission chain 62b each include an agitation sprocket 61c coaxially mounted on each corresponding central shaft, an agitation synchronization chain 61d connecting adjacent agitation sprockets 61c, and an agitation clutch 61e installed between each agitation sprocket 61c and the corresponding central shaft.

[0079] With the above equipment layout, the front area 11 concentrates the fermentation operation and material handling related structures, which is convenient for operators' daily operations; the rear area 12 concentrates the easily damaged transmission components, and daily maintenance can be completed through the maintenance channel 12a; the arrangement of the third motor 63 body in front and the first power output sprocket 63a and the second power output sprocket 63b in the rear enables it to provide power to the front conveying auger 24 and the nearby transition shaft 37 at the rear at the same time.

[0080] Preferably, an exhaust fan 81 is installed above the side wall of the fermentation chamber 2, and the air outlets of all the exhaust fans 81 are connected to the deodorization mechanism 82 through exhaust pipes (not shown in the figure).

[0081] In addition, the side wall of the fermentation chamber 2 is equipped with aeration ports, which are connected to a booster pump via aeration pipes. The feeding mechanism 4 is also equipped with a liquid supply port, which is connected to a liquid supply device via a pipe. Through this structure, the odor generated during fermentation is drawn by the exhaust fan 81 to the deodorization mechanism 82 for treatment before being discharged, thus avoiding pollution of the working environment; the aeration ports actively supply air to the fermentation chamber 2, improving the oxygen supply conditions inside the chamber; and the liquid supply port adds water containing a composting agent when the material enters the fermentation chamber 2, shortening the fermentation heating time.

[0082] Preferably, the cross-sectional width of the descending section 34 of the conveying trough is greater than the cross-sectional width of the upper section 31, the lower section 32, and the ascending section 33;

[0083] The drive sprocket 38 and driven sprocket 39 corresponding to the scraper chain 36 are installed at the lower end of the descending section groove 34, as follows: Figure 7 As shown, the driven sprocket 39 is mounted on the housing 1 via a tensioning mechanism 39a, and the tensioning displacement direction of the tensioning mechanism 39a is along the width direction of the descending section groove 34.

[0084] The cross-sectional width of the descending section trough 34 can be 80 to 150 mm wider than the other three sections, with the specific increment depending on the tension displacement stroke; the tensioning mechanism 39a can adopt known forms such as spring tensioning or screw tensioning, and the widened descending section trough 34 can provide sufficient displacement space for the scraper chain 36 passing through it.

[0085] Preferably, two arc-shaped transition troughs 35 located at the upper and lower ends of the rising section of the conveying trough 33 are respectively fixed with fan-shaped plates 35a; the arc surface of the fan-shaped plate 35a extends into the inner cavity of the arc-shaped transition trough 35 and extends along the inner side of the turning trajectory of the scraper chain 36, providing inner support for the scraper chain 36 at the turning section. The radius of the arc surface of the fan-shaped plate 35a matches the radius of the running trajectory of the scraper chain 36 at the turning section, so that the chain can smoothly transition along the outer edge of the fan-shaped plate 35a when turning, without contacting the outer wall of the arc-shaped transition trough 35. With the above structure, the scraper chain 36 is constrained from the inside by the fan-shaped plate 35a when turning, and its chain is completely lifted away from the inner wall of the conveying trough, avoiding direct friction between the chain and the trough wall, which reduces running resistance and extends the service life of the chain and the trough.

[0086] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An agricultural and forestry waste resource utilization fermentation treatment equipment, comprising an outer shell (1), multiple fermentation chambers (2), an annular material conveying mechanism (3), a feeding mechanism (4), and a discharging mechanism (5); All the fermentation chambers (2) are arranged laterally inside the outer shell (1), and each fermentation chamber (2) is provided with a conveying auger (24) at the bottom; the annular material conveying mechanism (3) is arranged around all the fermentation chambers (2) along a vertical plane, and includes a conveying trough and a scraper chain (36) located in the conveying trough; the scraper chain (36) is driven by a drive sprocket (38) fixed on a transition shaft (37); Its features are: The output end of the third motor (63) is connected to the first power output sprocket (63a) and the second power output sprocket (63b) arranged coaxially in parallel. Each of the conveying augers (24) has an auger sprocket (24a) connected to its shaft end via a clutch mechanism (7); the first power output sprocket (63a) establishes a power transmission relationship with one of the auger sprockets (24a) via a first transmission chain (63c); adjacent auger sprockets (24a) establish a power transmission relationship via a conveying auger power chain (24b); The second power output sprocket (63b) establishes a power transmission relationship with the transition sprocket (37a) on the transition shaft (37) through the second transmission chain (63d).

2. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, The clutch mechanism (7) includes a fixing member (71) fixed to the shaft end of the conveying auger (24), a rotating member (72) fixed to the auger sprocket (24a), a sliding member (73) axially sliding relative to the rotating member (72), and a clutch drive mechanism for driving the sliding member (73) to slide relative to the rotating member (72). The sliding member (73) and the fixing member (71) have a first claw plate (73a) and a second claw plate (71a) on their opposite end faces, respectively. The sliding member (73) has an annular groove (73b); the clutch drive mechanism includes a rotating fork (74) and a drive cylinder (75) for driving the rotating fork (74) to rotate; a roller (76) is mounted on the rotating fork (74) and the roller (76) is placed in the annular groove (73b).

3. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, The feeding mechanism (4) is installed above the lower section of the conveying trough (32); the feeding mechanism (4) includes a receiving trough (41) fixed relative to the lower section of the trough (32), and also includes a mounting frame (42), a feeding hopper (43) hinged to the mounting frame (42) via a first hinge (42a), and a first spring (44) connecting the mounting frame (42) and the feeding hopper (43); The mounting bracket (42) is provided with a first arc-shaped groove (42b), and the feed hopper (43) is provided with a guide element (43a) that extends into the first arc-shaped groove (42b). Under the action of the first spring (44), the feed hopper (43) maintains its side wall upright in the non-working state, and is flush with the front end face of the outer shell (1).

4. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, The discharge mechanism (5) is installed below the upper section of the trough (31); The discharge mechanism (5) includes a gate mechanism (51), a discharge pipe (52), a discharge hopper (53), a connecting frame (54), and a second spring (55); The discharge pipe (52) is installed below the gate mechanism (51), the connecting frame (54) is fixed relative to the discharge pipe (52), the discharge hopper (53) is rotatably connected to the connecting frame (54) through the second hinge, the connecting frame (54) is provided with a second arc groove (54a), and the discharge hopper (53) is provided with a limiting unit (53a) passing through the second arc groove (54a); the second spring (55) connects the connecting frame (54) and the discharge hopper (53).

5. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 4, characterized in that, The gate blocking mechanism (51) includes a mechanism base (51a) fixed relative to the upper groove (31), a gate (51b) capable of translating relative to the mechanism base (51a), and a translation drive unit (51c) for driving the gate (51b) to translate. The mechanism base (51a) includes a square frame, the upper part of which is covered by a cover plate and the other part is hollowed out vertically. The translation drive unit (51c) is installed on the lower side of the cover plate. The gate (51b) is composed of an L-shaped flat baffle part (51d) and a vertical baffle part (51e). The translation drive unit (51c) is connected to the vertical baffle part (51e) and drives the gate (51b) to switch between an open state and a closed state.

6. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, The internal space of the outer shell (1) is divided into a front region (11) and a rear region (12). The main bodies of the fermentation chamber (2), the annular material conveying mechanism (3), the feeding mechanism (4), the discharging mechanism (5), and the third motor (63) are all arranged in the front area (11). The first motor (61), the second motor (62) that drives the stirring mechanism in the fermentation chamber (2), as well as the reducer and transmission chain corresponding to the first motor (61) and the second motor (62), are all arranged in the rear area (12). The output shaft of the third motor (63) extends rearward to the rear region (12), and the first power output sprocket (63a) and the second power output sprocket (63b) are mounted on the rear end of the output shaft; The rear area (12) is provided with a maintenance passage (12a) for workers to enter.

7. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, A blower (81) is installed above the side wall of the fermentation chamber (2), and the air outlet of all the blowers (81) is connected to the deodorization mechanism (82) through the exhaust pipe.

8. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 1, characterized in that, The cross-sectional width of the descending section (34) of the conveying trough is greater than the cross-sectional width of the upper section (31), the lower section (32), and the ascending section (33); The drive sprocket (38) and driven sprocket (39) corresponding to the scraper chain (36) are installed at the lower end of the descending section groove (34). The driven sprocket (39) is installed on the outer shell (1) through a tensioning mechanism (39a). The tensioning displacement direction of the tensioning mechanism (39a) is along the width direction of the descending section groove (34).

9. The agricultural and forestry waste resource utilization fermentation treatment equipment according to claim 8, characterized in that, Two arc-shaped transition troughs (35) located at the upper and lower ends of the rising section trough (33) of the conveying trough are respectively fixed with fan-shaped plates (35a); the arc surface of the fan-shaped plate (35a) extends into the inner cavity of the arc-shaped transition trough (35) and extends along the inner side of the turning trajectory of the scraper chain (36), providing inner support for the scraper chain (36) at the turning section.

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