CN117645920A - Dry anaerobic fermentation device - Google Patents
Dry anaerobic fermentation device Download PDFInfo
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- CN117645920A CN117645920A CN202410123647.7A CN202410123647A CN117645920A CN 117645920 A CN117645920 A CN 117645920A CN 202410123647 A CN202410123647 A CN 202410123647A CN 117645920 A CN117645920 A CN 117645920A
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- 238000000855 fermentation Methods 0.000 title claims abstract description 81
- 238000003756 stirring Methods 0.000 claims abstract description 105
- 230000004151 fermentation Effects 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 16
- 239000011343 solid material Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 17
- 239000002028 Biomass Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000010815 organic waste Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of biomass energy, in particular to a dry anaerobic fermentation device, which comprises a double-layer fixing frame, wherein a horizontal fermentation tank is fixedly arranged on the upper layer of the double-layer fixing frame, a feed pipe and a discharge port are respectively arranged at two ends of the horizontal fermentation tank, a gas collecting pipe is arranged at one end of the horizontal fermentation tank close to the discharge port, a hollow screw shaft is rotationally arranged in the horizontal fermentation tank, a first driving mechanism is arranged on the lower layer of the double-layer fixing frame, a plurality of groups of stirring assemblies are arranged on the hollow screw shaft, each group of stirring assemblies comprises a stirring rod and a cone swing mechanism, and the cone swing mechanism comprises a rotating shaft, a support, an eccentric shaft and a second driving mechanism. The hollow screw shaft is provided with a plurality of groups of stirring assemblies, each group of stirring assemblies comprises a stirring rod capable of performing conical pendulum movement, the stirring range of the mixture is enlarged through the conical pendulum movement of the stirring rod, and finally, the mixture is fully and uniformly mixed.
Description
Technical Field
The invention relates to the technical field of biomass energy, in particular to a dry anaerobic fermentation device.
Background
The dry anaerobic fermentation device is a device for treating organic waste, and converts the waste into renewable energy sources such as methane through an anaerobic fermentation technology. The device is characterized in that a dry treatment technology is adopted, namely, no water or little water is added in the anaerobic fermentation process, so that low-humidity organic waste can be treated. Compared with the traditional anaerobic fermentation device, the dry anaerobic fermentation device has higher energy conversion efficiency and wider application range.
The dry anaerobic fermentation device generally comprises a feeding system, a fermentation tank, a biogas treatment and utilization system and the like. The feeding system is responsible for sending the organic waste into the fermentation tank, the fermentation tank decomposes the organic waste into biogas through the action of anaerobic bacteria, and the biogas treatment and utilization system is responsible for purifying the biogas and utilizing the biogas to generate electricity, supply heat and the like.
Chinese patent application CN113373028A discloses a continuous anaerobic dry fermentation device and method, which has the following drawbacks in use:
in the traditional fermentation process, the undecomposed solid materials are required to be discharged at regular time and then new organic wastes are added into the fermentation tank, namely the whole fermentation process is discontinuous, the organic wastes are transported by adopting the spiral conveying device, and react with anaerobic bacteria in the transportation process, wherein biogas is discharged through the exhaust port, and the undecomposed solid materials are discharged through the discharge port, so that the organic wastes can be continuously added into the fermentation tank, and finally, the continuous fermentation of the organic wastes is realized, but the spiral conveying device can only axially transport the mixture, and the mixture cannot be fully stirred in the axial transportation process, so that the decomposition of the organic wastes is incomplete, and finally, the biogas yield is influenced, and therefore, the dry anaerobic fermentation device is required to be provided to solve the problems.
Disclosure of Invention
In view of the above, it is necessary to provide a dry anaerobic fermentation apparatus for solving the problems of the prior art.
In order to solve the problems in the prior art, the invention adopts the following technical scheme: the utility model provides a dry anaerobic fermentation device, including double-deck mount, the upper strata of double-deck mount is fixed to be equipped with horizontal fermentation cylinder, the both ends of horizontal fermentation cylinder are equipped with inlet pipe and discharge gate respectively, the one end that horizontal fermentation cylinder is close to the discharge gate is equipped with the gas collecting tube, the horizontal fermentation cylinder internal rotation is equipped with and is horizontal hollow screw shaft, the lower floor of double-deck mount is equipped with and is used for driving hollow screw shaft pivoted first actuating mechanism, be equipped with a plurality of groups along its axial equidistance stirring subassembly that distributes on the hollow screw shaft, every group stirring subassembly all includes stirring rod and awl pendulum mechanism, awl pendulum mechanism is used for driving stirring rod and carries out awl pendulum motion, thereby carry out intensive mixing to the mixture in the horizontal fermentation cylinder, awl pendulum mechanism includes the pivot, the support, eccentric shaft and No. two actuating mechanism, the pivot is vertical rotation and locates in the hollow screw shaft, the eccentric shaft is the tilt state with the pivot, no. two actuating mechanism locates in the hollow screw shaft, no. actuating mechanism is used for driving the pivot rotation, the support is fixed in the hollow screw shaft, the one end and the support universal connection of stirring rod.
Further, the upper layer of double-deck mount is fixed and is equipped with the bracket, horizontal fermentation cylinder passes through the bracket and erects in the upper layer of double-deck mount, the both ends of horizontal fermentation cylinder are enclosed construction, the inlet pipe, the discharge gate and gas collecting tube are all located on the periphery wall of horizontal fermentation cylinder, hollow screw axis includes hollow shaft and flight, the both ends of hollow shaft pass the both ends of horizontal fermentation cylinder respectively horizontally, the fixed axle bed and the gyro wheel slide that are located horizontal fermentation cylinder both ends respectively that are equipped with on the bracket, the gyro wheel slide is located the below of hollow shaft, the gyro wheel slide includes mount pad and a plurality of pulley groups, the mount pad links to each other with the bracket is fixed, be equipped with the semicircle board that can cladding hollow shaft lower half, a plurality of pulley groups are distributed along semicircle board's circumferencial direction equidistance, the one end and the axle bed of hollow shaft link to each other, the other end of hollow shaft is taken up on a plurality of pulley groups, the flight sets up along the axial of hollow shaft, the axial length of flight is less than or equal to horizontal fermentation cylinder.
Further, both ends of the hollow shaft are of an opening structure, one end of the hollow shaft, which is close to the shaft seat, is coaxially and fixedly connected with the solid shaft, the solid shaft is connected with the shaft seat, the first driving mechanism comprises a gear motor and a synchronous transmission mechanism, the gear motor is horizontally and fixedly arranged on the lower layer of the double-layer fixing frame, the synchronous transmission mechanism comprises a synchronous belt and two synchronous wheels, the two synchronous wheels are respectively and fixedly connected with the output end of the gear motor and the solid shaft coaxially, and the synchronous belt is arranged between the two synchronous wheels.
Further, a plurality of through holes corresponding to the stirring assemblies one by one are formed in the outer wall of the hollow shaft, a plurality of annular supporting plates corresponding to the through holes one by one are arranged in the hollow shaft, each annular supporting plate is coaxial with the corresponding through hole, the peripheral wall of each annular supporting plate is provided with a circle of annular connecting plate connected with the inner wall of the hollow shaft, a circular fixing seat is coaxially arranged in each through hole, the outer edge of the circular fixing seat is fixedly connected with the annular supporting plate and is fixedly embedded with a first bearing on the circle of each circular fixing seat, the rotating shaft penetrates through the circular fixing seat, and the rotating shaft is connected with the first bearing.
Further, two bearings are coaxially and fixedly arranged in two ends of the hollow shaft, a fixed shaft penetrating through the two bearings is arranged in the hollow shaft, one end, close to the roller sliding seat, of the fixed shaft penetrates out of the hollow shaft, the penetrating end of the fixed shaft is fixedly connected with the bracket through a fixing clamp, each driving mechanism II comprises a conical fluted disc and a bevel gear, the conical fluted disc is coaxially and fixedly connected with the fixed shaft, the bevel gear is arranged below the rotating shaft, the bevel gear is coaxially and fixedly connected with the rotating shaft, and the bevel gear is meshed with the conical fluted disc.
Further, the support in every awl pendulum mechanism is two, two supports are the symmetry state about the pivot, every support all is vertical and circular fixing base towards one side of through-hole links firmly, every stirring rod is close to the circumference equidistance of support and distributes along the stirring rod's axle coupling spare all is equipped with four sets of on the one end, every group axle coupling spare all includes annular shell and No. three bearings, the axial perpendicular to stirring rod's of annular shell axial, no. three bearings coaxial fixed locate in the annular shell, fixed connection between the adjacent annular shell, all the shaping has a No. one to insert the axle on every support, two No. one insert the axle respectively insert in two of them No. three bearings that are the symmetry state, every stirring rod is close to one end of support and all the shaping has two No. two inserts respectively in two No. three other bearings, every pivot is close to the one end of support and all is shaped and is connected, the outer end of bar connecting block all upwarp, the eccentric shaft all installs on the perk end of bar connecting block, every stirring rod is close to the tip of support and all is equipped with No. four bearings, coaxial with No. four bearings that correspond.
Further, a plurality of conical rubber sleeves corresponding to the through holes one by one are fixedly arranged on the peripheral wall of the hollow shaft, the corresponding through holes are completely covered by the large-caliber end of each conical rubber sleeve, connecting sleeves are formed on the small-caliber end of each conical rubber sleeve, each stirring rod penetrates through the conical rubber sleeve, and each stirring rod is fixedly connected with the corresponding connecting sleeve.
Further, the lower layer of the double-layer fixing frame is fixedly provided with a material collecting box, the material outlet is fixedly provided with a blanking slide plate for automatically sliding the solid materials which are not decomposed to the material collecting box, and both sides of the blanking slide plate are respectively provided with a baffle plate for preventing the solid materials from sliding out from both sides of the blanking slide plate.
Compared with the prior art, the invention has the following beneficial effects:
firstly, be equipped with a plurality of groups of stirring subassembly on the hollow screw axis, and every group stirring subassembly all contains a stirring rod that can carry out the awl pendulum motion, enlarges the stirring scope to the mixture through the awl pendulum motion of stirring rod, finally realizes fully mixing to the mixture.
And secondly, each group of stirring assemblies only comprises one stirring rod, compared with the traditional stirring paddles, the single stirring rod can relatively reduce the resistance between the stirring rod and the mixture, and the stability of the stirring rod during movement is further improved.
Thirdly, every through-hole on the hollow shaft is covered with a conical rubber sleeve, and when the stirring rod swings, the conical rubber sleeve can be self-adaptively deformed, so that the mixture which is axially displaced is effectively prevented from leaking into the corresponding through-hole through the conical rubber sleeve on the premise that the normal swing of the stirring rod is not affected.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged schematic view of a portion indicated by A1 in FIG. 1;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an enlarged partial schematic view designated by A2 in FIG. 4;
FIG. 6 is an enlarged partial schematic view designated by A3 in FIG. 4;
FIG. 7 is a schematic perspective view of a hollow screw shaft;
FIG. 8 is a schematic perspective view of a stirring shaft and shaft connector;
fig. 9 is a schematic perspective view of a circular fixing base.
The reference numerals in the figures are: 1. a double-layer fixing frame; 2. a horizontal fermenter; 3. a feed pipe; 4. a discharge port; 5. a gas collecting tube; 6. stirring rod; 7. a rotating shaft; 8. a bracket; 9. an eccentric shaft; 10. a bracket; 11. a hollow shaft; 12. a spiral sheet; 13. a shaft seat; 14. a mounting base; 15. a guide pulley; 16. a semicircular plate; 17. a solid shaft; 18. a speed reducing motor; 19. a synchronous belt; 20. a synchronizing wheel; 21. a through hole; 22. an annular supporting plate; 23. an annular connecting plate; 24. a circular fixing seat; 25. a first bearing; 26. a second bearing; 27. a fixed shaft; 28. a fixing clamp; 29. conical fluted disc; 30. a bevel gear; 31. an annular shell; 32. a bearing III; 33. a first inserting shaft; 34. a second inserting shaft; 35. a bar-shaped connecting block; 36. a bearing IV; 37. a conical rubber sleeve; 38. connecting sleeves; 39. a material collecting box; 40. a blanking slide plate; 41. and a striker plate.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to a dry anaerobic fermentation device shown in fig. 1 to 9, the dry anaerobic fermentation device comprises a double-layer fixing frame 1, the upper layer of the double-layer fixing frame 1 is fixedly provided with a horizontal fermentation tank 2, two ends of the horizontal fermentation tank 2 are respectively provided with a feed pipe 3 and a discharge port 4, one end of the horizontal fermentation tank 2, which is close to the discharge port 4, is provided with a gas collecting pipe 5, a hollow spiral shaft which is horizontal is rotationally arranged in the horizontal fermentation tank 2, the lower layer of the double-layer fixing frame 1 is provided with a first driving mechanism for driving the hollow spiral shaft to slowly rotate, a plurality of groups of stirring assemblies which are distributed at equal intervals along the axial direction of the hollow spiral shaft are arranged on the hollow spiral shaft, each group of stirring assemblies comprises stirring rods 6 and a conical swing mechanism, the conical swing mechanism is used for driving the stirring rods 6 to perform conical swing motion, the stirring rods are fully stirred in the horizontal fermentation tank 2, the conical swing mechanism comprises a rotating shaft 7, a bracket 8, an eccentric shaft 9 and a second driving mechanism, the rotating shaft 7 is vertically and rotationally arranged in the hollow spiral shaft, the axis 9 is fixedly connected with the rotating shaft 7, the axis of the eccentric shaft 9 is in an inclined state, the axis of the hollow spiral shaft 9 is arranged on one side of the rotating shaft 7, the axis of the hollow spiral shaft is connected with the hollow bracket 8, and the hollow bracket 8 is used for driving the stirring rod 8 is connected with one end of the hollow rod 6, and the stirring rod is coaxially connected with the stirring rod 6 through the stirring mechanism.
The mixed material of organic waste and anaerobic bacteria is thrown into the feeding pipe 3, at this moment, the hollow screw shaft is driven to mix through the driving mechanism, and then the mixed material is driven to axially displace, in the process of displacement of the mixed material, each stirring rod 6 carries out conical pendulum motion through the corresponding conical pendulum mechanism, stirring rod 6 can fully stir the mixed material, the specific process of driving stirring rod 6 to move is as follows, the driving mechanism II can drive the rotating shaft 7 to rotate along the axial direction of the rotating shaft, as the stirring rod 6 and the eccentric shaft 9 are coaxial, and the stirring rod 6 and the support 8 are in universal connection, after the rotating shaft 7 rotates, the eccentric shaft 9 can drive the stirring rod 6 to do conical pendulum motion around the rotating shaft 7, wherein one end of the stirring rod 6 and one end of the support 8 are fixed points when the stirring rod 6 carries out conical pendulum motion, the motion track of the other end of the stirring rod 6 is circular, the stirring range of the mixed material is enlarged through the conical pendulum motion of the stirring rod 6, and each group of stirring components only comprises one stirring rod 6.
In order to reveal the specific structure of the hollow screw shaft, the following features are provided:
the upper layer of the double-layer fixing frame 1 is fixedly provided with a bracket 10, the horizontal fermentation tank 2 is erected on the upper layer of the double-layer fixing frame 1 through the bracket 10, both ends of the horizontal fermentation tank 2 are of a closed structure, the feeding pipe 3, the discharging hole 4 and the gas collecting pipe 5 are all arranged on the peripheral wall of the horizontal fermentation tank 2, a hollow screw shaft comprises a hollow shaft 11 and a screw sheet 12, both ends of the hollow shaft 11 respectively horizontally penetrate through both ends of the horizontal fermentation tank 2, the bracket 10 is fixedly provided with a shaft seat 13 and a roller sliding seat which are respectively positioned at both ends of the horizontal fermentation tank 2, the roller sliding seat is positioned below the hollow shaft 11, the roller sliding seat comprises a mounting seat 14 and a plurality of groups of guide pulleys 15, the mounting seat 14 is fixedly connected with the bracket 10, a semicircular plate 16 capable of wrapping the lower half part of the hollow shaft 11 is arranged on the mounting seat 14, the groups of guide pulleys 15 are distributed in equal intervals along the circumferential direction of the semicircular plate 16, one end of the hollow shaft 11 is connected with the shaft seat 13, the other end of the hollow shaft 11 is arranged on the plurality of groups of guide pulleys 15, the screw sheet 12 is arranged along the axial direction of the hollow shaft 11, and the axial length of the screw sheet 12 is smaller than or equal to the axial length of the horizontal fermentation tank 2.
The roller slide seat is used for the hollow shaft 11 to rotate, one end of the hollow shaft 11 is connected with the shaft seat 13 to ensure the rotation stability of the hollow shaft 11, prevent the situation that one end of the hollow shaft 11 is tilted, in order to facilitate the installation of the hollow screw shaft in the horizontal fermentation tank 2, in the actual processing, the horizontal fermentation tank 2 is processed into two semicircular shells capable of being combined up and down, thus after the hollow screw shaft is installed in the lower semicircular shell, the upper semicircular shell is clamped down on the hollow screw shaft, the two semicircular shells are sealed and fixedly connected, after the installation of the hollow screw shaft is completed, the screw sheets 12 on the hollow screw shaft are positioned in the horizontal fermentation tank 2, wherein the interval between adjacent stirring assemblies is consistent with the screw pitch of the screw sheets 12, and each group of stirring assemblies is positioned between two adjacent blades in the screw sheets 12, the hollow shaft 11 is provided with a sealing ring at the part penetrating the horizontal fermentation tank 2, although the horizontal fermentation tank 2 is provided with a feed pipe 3 and a discharge hole 4, after the marsh gas is produced, the marsh gas possibly leaks from the feed pipe 3 and the discharge hole 4 at the moment, but the negative pressure suction generated by the gas collecting pipe 5 can immediately suck the marsh gas in the horizontal fermentation tank 2, in practical situation, the leakage amount of the marsh gas is negligible, the part of the gas collecting pipe 5 connected with the horizontal fermentation tank 2 is provided with a detachable filter screen, the filter screen is used for discharging the marsh gas to separate the solid materials in the horizontal fermentation tank 2, and due to the existence of the gas collecting pipe 5, the marsh gas can be discharged in time, the mixture can be continuously injected into the horizontal fermentation tank 2 through the feed pipe 3 during practical production, thereby realizing continuous fermentation of a large amount of organic wastes and finally improving the treatment efficiency of the organic wastes, and simultaneously, the biogas productivity is improved.
In order to reveal the specific structure of the first driving mechanism, the following features are provided:
both ends of the hollow shaft 11 are of an opening structure, one end of the hollow shaft 11, which is close to the shaft seat 13, is coaxially and fixedly connected with the solid shaft 17, the solid shaft 17 is connected with the shaft seat 13, the first driving mechanism comprises a gear motor 18 and a synchronous transmission mechanism, the gear motor 18 is horizontally and fixedly arranged on the lower layer of the double-layer fixing frame 1, the synchronous transmission mechanism comprises a synchronous belt 19 and two synchronous wheels 20, the two synchronous wheels 20 are respectively and coaxially and fixedly connected with the output end of the gear motor 18 and the solid shaft 17, and the synchronous belt 19 is arranged between the two synchronous wheels 20.
Because the body volume of the horizontal fermentation tank 2 is larger, the axial length of the hollow shaft 11 penetrating through the horizontal fermentation tank 2 is longer, the installation difficulty can be increased due to the fact that the hollow shaft 11 is overlong in the process of knocking in the shaft seat 13, the hollow shaft 11 is hollow, wall cracks can possibly occur in the hollow shaft 11 when the hollow shaft 11 is knocked into the shaft seat 13, a solid shaft 17 is arranged at one end of the hollow shaft 11, during actual installation, the solid shaft 17 is knocked in the shaft seat 13 firstly, then the hollow shaft 11 is fixed on the solid shaft 17, the hollow shaft 11 and the solid shaft 17 can be connected through bolts or hoops before, after the speed reducing motor 18 is started, the speed reducing motor 18 can drive the solid shaft 17 to rotate slowly through the synchronous transmission mechanism, and finally the solid shaft 17 can drive the hollow shaft 11 to rotate slowly.
In order to reveal how the spindle 7 fits within the hollow screw shaft, the following features are provided:
the outer wall of the hollow shaft 11 is provided with a plurality of through holes 21 corresponding to the stirring components one by one, the hollow shaft 11 is internally provided with a plurality of annular supporting plates 22 corresponding to the through holes 21 one by one, each annular supporting plate 22 is coaxial with the corresponding through hole 21, the peripheral wall of each annular supporting plate 22 is provided with a circle of annular connecting plate 23 connected with the inner wall of the hollow shaft 11, each through hole 21 is internally and coaxially provided with a circular fixing seat 24, the outer edge of the circular fixing seat 24 is arranged on the annular supporting plate 22 and fixedly connected with the annular supporting plate 22, the circle center of each circular fixing seat 24 is fixedly embedded with a bearing No. 25, the rotating shaft 7 penetrates through the circular fixing seat 24, and the rotating shaft 7 is connected with the bearing No. 25.
During installation, the vertical rotating shaft 7 is firstly installed in the first bearing 25, after the rotating shaft 7 is installed, the upper end and the lower end of the rotating shaft 7 penetrate through the circular fixing seat 24, then the circular fixing seat 24 is erected on the corresponding annular supporting plate 22 through the through hole 21, at the moment, the outer edge of the circular fixing seat 24 is in contact with the annular supporting plate 22, and finally the outer edge of the circular fixing seat 24 is fixedly connected with the annular supporting plate 22.
In order to reveal the specific structure of the drive mechanism No. two, the following features are provided:
the two ends of the hollow shaft 11 are coaxially and fixedly provided with second bearings 26, the hollow shaft 11 is internally provided with a fixed shaft 27 penetrating through the two second bearings 26, one end, close to the roller sliding seat, of the fixed shaft 27 penetrates out of the hollow shaft 11, the penetrating end of the fixed shaft 27 is fixedly connected with the bracket 10 through a fixing clamp 28, each second driving mechanism comprises a bevel gear disc 29 and a bevel gear 30, the bevel gear disc 29 is coaxially and fixedly connected with the fixed shaft 27, the bevel gear 30 is arranged below the rotating shaft 7, the bevel gear 30 is coaxially and fixedly connected with the rotating shaft 7, and the bevel gear 30 is meshed with the bevel gear disc 29.
The fixed shaft 27 is in a fixed state, when the hollow shaft 11 rotates, the rotating shaft 7 drives the bevel gear 30 to revolve around the axis of the fixed shaft 27, and as the bevel gear disc 29 is meshed with the bevel gear 30, the bevel gear 30 rotates after the bevel gear 30 revolves, so that the bevel gear 30 drives the rotating shaft 7 to rotate, and finally the rotating shaft 7 drives the stirring rod 6 to perform conical swing motion through the eccentric shaft 9.
In order to reveal how the stirring rod 6 is gimbaled to the support 8, the following features are provided:
the support 8 in every awl pendulum mechanism is two, two supports 8 are the symmetry state about pivot 7, every support 8 all is vertical state and links firmly with one side of circular fixing base 24 towards through-hole 21, every stirring rod 6 is close to the circumference equidistance of support 8 and all is equipped with four sets of axle connectors that distribute along stirring rod 6, every axle connector of group all includes annular shell 31 and No. three bearing 32, the axial perpendicular to stirring rod 6's of annular shell 31 axial, no. three bearing 32 coaxial fixed locates in annular shell 31, fixed connection between the adjacent annular shell 31, all form on every support 8 has a No. one to insert the axle 33, two No. one insert the axle 33 and insert respectively in No. three bearing 32 wherein two are the symmetry state, every stirring rod 6 is close to the No. two insert axle 34 in the other No. three bearing 32 respectively that are all formed on the one end that support 8 is close to, every pivot 7 is close to the support 8 all formed with bar 35, the outer end of bar 35 all sticks up, eccentric shaft 9 is formed in the axial of the end of the perk 35, no. 3 is equipped with No. four coaxial connecting blocks 36 that are close to the end of every support 8, no. four coaxial connecting blocks 36 are all connected with No. four coaxial connecting blocks 9.
When the rotating shaft 7 rotates, the rotating shaft 7 drives the eccentric shaft 9 in an inclined state to revolve around the axis of the rotating shaft 7 through the strip-shaped connecting block 35, in the revolution process of the rotating shaft 7, the eccentric shaft 9 inserted into the bearing No. four 36 drives one end, close to the bracket 8, of the corresponding stirring rod 6 to revolve around the axis of the rotating shaft 7, meanwhile, shaft connectors are arranged at one end, close to the bracket 8, of each stirring rod 6, so that the stirring rod 6 is provided with a supporting point capable of swinging in a universal mode through four groups of shaft connectors, and finally the stirring rod 6 is driven to perform conical swing motion.
In order to prevent the mixture driven by the hollow screw shaft to perform axial displacement from entering into each through hole 21, the following features are provided:
a plurality of conical rubber sleeves 37 which are in one-to-one correspondence with the through holes 21 are fixedly arranged on the peripheral wall of the hollow shaft 11, the corresponding through holes 21 are completely covered by the large-caliber end of each conical rubber sleeve 37, connecting sleeves 38 are formed on the small-caliber end of each conical rubber sleeve 37, each stirring rod 6 penetrates through the conical rubber sleeve 37, and each stirring rod 6 is fixedly connected with the corresponding connecting sleeve 38.
When the stirring rod 6 swings, the conical rubber sleeve 37 can be adaptively deformed, so that the mixture which is axially displaced is effectively prevented from leaking into the corresponding through hole 21 through the conical rubber sleeve 37 on the premise that the normal swing of the stirring rod 6 is not affected.
In order to collect the solid product of the fermented mixture, the following features are provided:
the lower layer of the double-layer fixing frame 1 is fixedly provided with a material collecting box 39, a discharging opening 4 is fixedly provided with a blanking slide plate 40 for automatically sliding the solid materials which cannot be decomposed to the material collecting box 39, and two sides of the blanking slide plate 40 are respectively provided with a baffle plate 41 for preventing the solid materials from sliding out of two sides of the blanking slide plate 40.
After the organic waste reacts with anaerobic bacteria, the residual solid materials which are not decomposed can be gradually transported to the discharge hole 4 along with the driving of the hollow screw shaft, and at the moment, the solid materials which are not decomposed can directly slide into the material collecting box 39 at the lower layer of the double-layer fixing frame 1 through the blanking slide plate 40, and the solid materials are collected through the material collecting box 39, so that the subsequent secondary processing or direct landfill of the solid materials which are not decomposed is facilitated.
Working principle:
the method comprises the steps that organic waste and anaerobic bacteria are thrown into a feeding pipe 3, at the moment, a hollow screw shaft is driven to rotate through a driving mechanism, the mixture is driven to axially move, in the process of moving the mixture, each stirring rod 6 performs conical pendulum movement through a corresponding conical pendulum mechanism, the stirring rod 6 can fully stir the mixture, the conical pendulum mechanism drives the stirring rod 6 to move in the specific process as follows, a driving mechanism II drives a rotating shaft 7 to rotate along the axial direction of the rotating shaft, the stirring rod 6 and an eccentric shaft 9 are coaxial, the stirring rod 6 is in universal connection with a support 8, when the rotating shaft 7 rotates, the eccentric shaft 9 can drive the stirring rod 6 to perform conical pendulum movement around the rotating shaft 7, one end of the stirring rod 6, which is the end of the stirring rod 6, is the fixed point when the stirring rod 6 performs conical pendulum movement, the other end of the stirring rod 6 moves circularly, the stirring range of the mixture is enlarged through the conical pendulum movement of the stirring rod 6, and each group of stirring assemblies only comprises one stirring rod 6.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (8)
1. A dry anaerobic fermentation device is characterized by comprising a double-layer fixing frame (1), wherein the upper layer of the double-layer fixing frame (1) is fixedly provided with a horizontal fermentation tank (2), two ends of the horizontal fermentation tank (2) are respectively provided with a feeding pipe (3) and a discharging hole (4), one end of the horizontal fermentation tank (2) close to the discharging hole (4) is provided with a gas collecting pipe (5), a hollow spiral shaft which is horizontal is rotationally arranged in the horizontal fermentation tank (2), the lower layer of the double-layer fixing frame (1) is provided with a first driving mechanism for driving the hollow spiral shaft to rotate, the hollow spiral shaft is provided with a plurality of groups of stirring assemblies which are distributed at equal intervals along the axial direction of the hollow spiral shaft, each group of stirring assemblies comprises a stirring rod (6) and a conical swinging mechanism, the conical swinging mechanism is used for driving the stirring rod (6) to perform conical swinging motion, the mixed materials in the horizontal fermentation tank (2) are fully stirred, the conical swinging mechanism comprises a rotating shaft (7), a support (8), an eccentric shaft (9) and a second driving mechanism, the rotating shaft (7) is vertically and rotationally arranged in the hollow spiral shaft, the eccentric shaft (9) is fixedly connected with the rotating shaft (7), the eccentric shaft (9) in an inclined state, the axis of the hollow spiral shaft (9) is intersected with the second driving mechanism, the axis of the hollow spiral shaft is arranged in the hollow driving mechanism, the rotating mechanism is used in the rotating shaft, and the second driving mechanism is used for driving the rotating in the rotation (7, one end of the stirring rod (6) is in universal connection with the bracket (8), and the end of the stirring rod (6) is coaxially connected with the eccentric shaft (9).
2. The dry anaerobic fermentation device of claim 1, wherein the upper layer of the double-layer fixing frame (1) is fixedly provided with a bracket (10), the horizontal fermentation tank (2) is erected on the upper layer of the double-layer fixing frame (1) through the bracket (10), both ends of the horizontal fermentation tank (2) are of a closed structure, the feeding pipe (3), the discharging hole (4) and the gas collecting pipe (5) are all arranged on the peripheral wall of the horizontal fermentation tank (2), the hollow screw shaft comprises a hollow shaft (11) and a screw sheet (12), both ends of the hollow shaft (11) horizontally penetrate through both ends of the horizontal fermentation tank (2) respectively, the bracket (10) is fixedly provided with a shaft seat (13) and a roller slide seat which are respectively positioned at both ends of the horizontal fermentation tank (2), the roller slide seat is positioned below the hollow shaft (11), the roller slide seat comprises a mounting seat (14) and a plurality of groups of guide pulleys (15), the mounting seat (14) is fixedly connected with the bracket (10), a semicircular plate (16) capable of coating the lower half part of the hollow shaft (11) is arranged on the mounting seat (14), the plurality of groups of guide pulleys (15) are arranged along the circumferential direction of the semicircular plate (16), the hollow shaft (11) is distributed along the circumferential direction of the semicircular plate (11), the hollow shaft (11) is arranged at the other ends of the hollow shaft (11) and the hollow shaft (11) is equidistant, the axial length of the spiral sheet (12) is smaller than or equal to the axial length of the horizontal fermentation tank (2).
3. A dry anaerobic fermentation device according to claim 2, wherein the two ends of the hollow shaft (11) are both of an opening structure, one end of the hollow shaft (11) close to the shaft seat (13) is coaxially and fixedly connected with the solid shaft (17), the solid shaft (17) is connected with the shaft seat (13), the first driving mechanism comprises a gear motor (18) and a synchronous transmission mechanism, the gear motor (18) is horizontally and fixedly arranged on the lower layer of the double-layer fixing frame (1), the synchronous transmission mechanism comprises a synchronous belt (19) and two synchronous wheels (20), the two synchronous wheels (20) are respectively and coaxially fixedly connected with the output end of the gear motor (18) and the solid shaft (17), and the synchronous belt (19) is arranged between the two synchronous wheels (20).
4. A dry anaerobic fermentation device according to claim 2, wherein the outer wall of the hollow shaft (11) is provided with a plurality of through holes (21) corresponding to the stirring components one by one, the hollow shaft (11) is internally provided with a plurality of annular supporting plates (22) corresponding to the through holes (21) one by one, each annular supporting plate (22) is coaxial with the corresponding through hole (21), the peripheral wall of each annular supporting plate (22) is provided with a circle of annular connecting plate (23) connected with the inner wall of the hollow shaft (11), each through hole (21) is internally and coaxially provided with a circular fixing seat (24), the outer edge of the circular fixing seat (24) is arranged on the annular supporting plate (22) and fixedly connected with the annular supporting plate (22), the center of each circular fixing seat (24) is fixedly embedded with a first bearing (25), the rotating shaft (7) penetrates through the circular fixing seat (24), and the rotating shaft (7) is connected with the first bearing (25).
5. A dry anaerobic fermentation device according to claim 2, wherein two bearings (26) are coaxially and fixedly arranged in the two ends of the hollow shaft (11), a fixed shaft (27) penetrating through the two bearings (26) is arranged in the hollow shaft (11), one end of the fixed shaft (27) close to the roller sliding seat penetrates out of the hollow shaft (11), the penetrating end of the fixed shaft (27) is fixedly connected with the bracket (10) through a fixing clamp (28), each second driving mechanism comprises a conical fluted disc (29) and a bevel gear (30), the conical fluted disc (29) is coaxially and fixedly connected with the fixed shaft (27), the bevel gear (30) is arranged below the rotating shaft (7), the bevel gear (30) is coaxially and fixedly connected with the rotating shaft (7), and the bevel gear (30) is meshed with the conical fluted disc (29).
6. A dry anaerobic fermentation device according to claim 4, wherein the two brackets (8) in each conical swing mechanism are respectively arranged in two, the two brackets (8) are in symmetrical states about the rotating shaft (7), each bracket (8) is vertically fixedly connected with one side of the round fixing seat (24) towards the through hole (21), one end of each stirring rod (6) close to the bracket (8) is respectively provided with four groups of shaft connecting pieces which are distributed along the circumference of the stirring rod (6) at equal intervals, each group of shaft connecting pieces comprises an annular shell (31) and a third bearing (32), the axial direction of the annular shell (31) is perpendicular to the axial direction of the stirring rod (6), the third bearing (32) is coaxially and fixedly arranged in the annular shell (31), the adjacent annular shells (31) are fixedly connected, a first inserting shaft (33) is respectively formed on each bracket (8), two first inserting shafts (33) are respectively inserted into the third bearings (32) in symmetrical states, one end of each stirring rod (6) close to the bracket (8) is respectively provided with two eccentric shafts (35) which are respectively inserted into the first connecting pieces and the second connecting pieces (35) are respectively connected to the two strip-shaped connecting pieces (35) which are respectively arranged on the connecting pieces (35) and are respectively connected with one connecting piece (35), the end part of each stirring rod (6) close to the bracket (8) is embedded with a fourth bearing (36), and the eccentric shaft (9) is coaxially connected with the corresponding fourth bearing (36).
7. A dry anaerobic fermentation device according to claim 4, wherein a plurality of conical rubber sleeves (37) corresponding to the through holes (21) one by one are fixedly arranged on the peripheral wall of the hollow shaft (11), the large-caliber end of each conical rubber sleeve (37) completely covers the corresponding through hole (21), a connecting sleeve (38) is formed on the small-caliber end of each conical rubber sleeve (37), each stirring rod (6) passes through the conical rubber sleeve (37), and each stirring rod (6) is fixedly connected with the corresponding connecting sleeve (38).
8. A dry anaerobic fermentation device according to claim 1, wherein the lower layer of the double-layer fixing frame (1) is fixedly provided with a material collecting box (39), the material outlet (4) is fixedly provided with a material discharging slide plate (40) for automatically sliding the solid materials which are not decomposed to the material collecting box (39), and both sides of the material discharging slide plate (40) are respectively provided with a material blocking plate (41) for preventing the solid materials from sliding out from both sides of the material discharging slide plate (40).
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| CN202410123647.7A CN117645920B (en) | 2024-01-30 | 2024-01-30 | Dry anaerobic fermentation device |
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| CN202410123647.7A CN117645920B (en) | 2024-01-30 | 2024-01-30 | Dry anaerobic fermentation device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201309931Y (en) * | 2008-10-31 | 2009-09-16 | 清华大学 | Horizontal anaerobic reactor for producing methane based on solid fermentation of organic waste |
| CN211445738U (en) * | 2019-12-31 | 2020-09-08 | 四川蓝天星环保科技有限公司 | Dry anaerobic fermentation device for solid waste |
| CN113373028A (en) * | 2021-07-07 | 2021-09-10 | 农业农村部规划设计研究院 | Continuous anaerobic dry fermentation device and method |
| CN114507587A (en) * | 2022-03-29 | 2022-05-17 | 河南鸣皋智能科技有限公司 | Agricultural organic waste fermentation system and method |
| US20230102465A1 (en) * | 2019-10-11 | 2023-03-30 | Kwan Hao Chan | Reciprocating lamination spiral solid-liquid separator |
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2024
- 2024-01-30 CN CN202410123647.7A patent/CN117645920B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201309931Y (en) * | 2008-10-31 | 2009-09-16 | 清华大学 | Horizontal anaerobic reactor for producing methane based on solid fermentation of organic waste |
| US20230102465A1 (en) * | 2019-10-11 | 2023-03-30 | Kwan Hao Chan | Reciprocating lamination spiral solid-liquid separator |
| CN211445738U (en) * | 2019-12-31 | 2020-09-08 | 四川蓝天星环保科技有限公司 | Dry anaerobic fermentation device for solid waste |
| CN113373028A (en) * | 2021-07-07 | 2021-09-10 | 农业农村部规划设计研究院 | Continuous anaerobic dry fermentation device and method |
| CN114507587A (en) * | 2022-03-29 | 2022-05-17 | 河南鸣皋智能科技有限公司 | Agricultural organic waste fermentation system and method |
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