阅读说明：本技术 一种有机物干式厌氧输送发酵装置 (Organic matter dry-type anaerobic conveying fermentation device ) 是由 高博 曾毅夫 叶明强 周益辉 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种有机物干式厌氧输送发酵装置,包括卧式厌氧发酵罐和设置于发酵罐内的搅拌装置,所述搅拌装置包括上下两排水平布设且相互垂直的搅拌轴及驱动所述搅拌轴转动的驱动机构；两排所述搅拌轴上均设有若干间隔排布的搅拌杆组,所述搅拌杆组包括若干沿所述搅拌轴横截面圆周方向分布的搅拌杆,所述搅拌杆上设有输料斜板。该装置巧妙的将进料口和出料口设置在上排的搅拌轴的两端,可以保证反应的充分进行。搅拌杆上设置输料斜板,该输料斜板成一定角度同方向布置,可将搅拌物料向出料口端输送,确保出物料输送过程不出现堵塞现象。(The invention discloses an organic matter dry-type anaerobic conveying fermentation device, which comprises a horizontal anaerobic fermentation tank and a stirring device arranged in the fermentation tank, wherein the stirring device comprises an upper row of stirring shafts and a lower row of stirring shafts which are horizontally arranged and are vertical to each other and a driving mechanism for driving the stirring shafts to rotate; and a plurality of stirring rod groups which are arranged at intervals are arranged on the stirring shaft, each stirring rod group comprises a plurality of stirring rods distributed along the circumferential direction of the cross section of the stirring shaft, and a material conveying inclined plate is arranged on each stirring rod. The device is ingenious with feed inlet and discharge gate setting at the both ends of the (mixing) shaft of going up, can guarantee going on fully of reaction. The stirring rod is provided with the material conveying inclined plate which is arranged in the same direction at a certain angle, and can convey stirred materials to the discharge port end, so that the phenomenon of blockage in the material conveying process is avoided.)

1. The utility model provides an organic matter dry-type anaerobism transport fermenting installation, includes horizontal anaerobic fermentation jar and sets up the agitating unit in the fermentation jar, its characterized in that: the stirring device comprises an upper row of stirring shafts and a lower row of stirring shafts which are horizontally arranged and are mutually vertical and a driving mechanism for driving the stirring shafts to rotate;

a plurality of stirring rod groups which are arranged at intervals are arranged on the two rows of stirring shafts, and each stirring rod group comprises a plurality of stirring rods which are distributed along the circumferential direction of the cross section of each stirring shaft;

the feed inlet and the discharge outlet of the horizontal anaerobic fermentation tank are arranged at two ends of the upper stirring shaft, and the stirring rod on the upper stirring shaft is provided with a material conveying inclined plate.

2. The organic matter dry anaerobic transport fermentation apparatus according to claim 1, wherein: and the two rows of stirring shafts are in meshing transmission through a worm and gear mechanism.

3. The dry anaerobic fermentation apparatus for organic matter according to claim 2, wherein: and a worm wheel section which is in meshed transmission with the worm wheel on the stirring shaft on the upper row is arranged on the stirring shaft on the lower row.

4. The organic matter dry anaerobic transport fermentation apparatus according to claim 3, characterized in that: and the stirring rods on the stirring shafts in the two rows extend to the inner bottom surface of the anaerobic fermentation tank.

5. The dry anaerobic fermentation device for organic matter according to claim 4, wherein: a middle stirring rod group is also arranged between two adjacent stirring rod groups on the upper stirring shaft;

the middle stirring rod group comprises a plurality of stirring rods which are distributed along the circumferential direction of the cross section of the stirring shaft and are provided with material conveying inclined plates, and the length of the stirring rod positioned on the middle stirring rod group is smaller than that of the stirring rod positioned on the stirring rod group.

6. The dry anaerobic fermentation device for organic matter according to claim 5, wherein: the stirring rod on the middle stirring rod group is also provided with a material conveying inclined plate.

7. The organic matter dry anaerobic transport fermentation apparatus according to any one of claims 1 to 6, wherein: the driving mechanism comprises a driving motor and a driving gear arranged on an output shaft of the driving motor, each stirring shaft in the lower row is in meshing transmission through a driven gear, and the driving gear is in meshing transmission with one of the driven gears.

8. The organic matter dry anaerobic transport fermentation apparatus according to any one of claims 1 to 6, wherein: the horizontal anaerobic fermentation tank comprises a fermentation tank body and an air collecting bag arranged above the fermentation tank body.

Technical Field

The invention belongs to the technical field of anaerobic fermentation, and particularly relates to a dry anaerobic conveying fermentation device for organic matters.

Background

At present, the annual organic matter production in the country is about 100 million tons or more. The data show that the discharge amount of the excrement only in livestock and poultry breeding industry is more than 38 hundred million tons, the chemical oxygen demand discharged by the livestock and poultry breeding industry reaches 1268.26 ten thousand tons, and the discharge amount accounts for 96 percent of the total agricultural source discharge amount; the total nitrogen and phosphorus emissions were 102.48 and 16.04 million tons, accounting for 38 and 56% of the total agricultural source emissions, respectively. Organic matter becomes a major source of pollution. Organic matters are resources, and how to utilize the resources efficiently becomes a problem recognized at present.

The traditional dry anaerobic fermentation device has the problems of low conveying efficiency, easy blockage, material dead angles, impurity-containing substrates, non-uniform mixing of organic matters and sewage, influence on anaerobic fermentation, incapability of smoothly discharging produced gas and the like.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, the invention aims to provide a dry anaerobic conveying fermentation device for organic matters. The device solves the problems that the existing dry anaerobic fermentation equipment cannot stir materials completely and the materials cannot be smoothly pushed forward and are easy to block.

In order to solve the technical problem, the following technical scheme is adopted in the application:

a dry anaerobic conveying fermentation device for organic matters comprises a horizontal anaerobic fermentation tank and a stirring device arranged in the fermentation tank, wherein the stirring device comprises an upper row of stirring shafts and a lower row of stirring shafts which are horizontally arranged and are mutually vertical and a driving mechanism for driving the stirring shafts to rotate;

a plurality of stirring rod groups which are arranged at intervals are arranged on the two rows of stirring shafts, and each stirring rod group comprises a plurality of stirring rods which are distributed along the circumferential direction of the cross section of each stirring shaft;

the feed inlet and the discharge outlet of the horizontal anaerobic fermentation tank are arranged at two ends of the stirring shaft on the upper row;

and a material conveying inclined plate for pushing materials in the fermentation tank to the discharge port end is arranged on the stirring rod on the stirring shaft in the upper row.

The upper and lower rows of vertical stirring shafts are arranged, so that the full reaction can be ensured. The feeding hole and the discharging hole are ingeniously arranged at two ends of the upper-discharging stirring shaft, the material conveying inclined plates are arranged on the upper-discharging stirring rod and are arranged in the same direction at a certain angle, stirring materials can be conveyed in the same direction (the discharging hole end), and the phenomenon of blockage in the material conveying process is guaranteed.

Furthermore, the two rows of stirring shafts are in meshing transmission through a worm and gear mechanism. The two rows of stirring shafts are driven by a worm and gear mechanism, and the whole stirring structure is driven by one set of transmission system, so that the integration level of a fermentation system is improved, and the reduction of the occupied area and the energy consumption of equipment is facilitated.

Further, a worm wheel section which is in meshed transmission with the worm wheel on the stirring shaft in the upper row is arranged on the stirring shaft in the lower row. The worm is arranged on the lower-row stirring shaft, so that the lower-row stirring shaft rotates at a higher speed, and the deposited materials at the bottom are quickly thrown upwards, so that the materials are ensured not to be deposited, and meanwhile, the overflow of the gas at the bottom is facilitated; the stirring shafts in the upper row rotate at a lower speed, so that the retention time of materials can be ensured, the full reaction is ensured, and the improvement of the gas production rate is facilitated.

Furthermore, the stirring rods on the two rows of stirring shafts extend to the inner bottom surface of the anaerobic fermentation tank. The stirring rods on the two stirring shafts extend to the inner bottom surface of the anaerobic fermentation tank, so that the material deposition can be prevented from reducing the effective volume of the anaerobic fermentation and the sand setting phenomenon, and the smooth proceeding of the anaerobic fermentation is ensured. Simultaneously, the lower part of the anaerobic fermentation tank is stirred more severely, which is beneficial to the discharge of gas generated at the bottom of the anaerobic fermentation tank and the proceeding of chemical reaction.

Furthermore, a middle stirring rod group is arranged between two adjacent stirring rod groups on the stirring shaft in the upper row;

the middle stirring rod group comprises a plurality of stirring rods which are distributed along the circumferential direction of the cross section of the stirring shaft and are provided with material conveying inclined plates, and the length of the stirring rod positioned on the middle stirring rod group is smaller than that of the stirring rod positioned on the stirring rod group.

Furthermore, the stirring rods on the middle stirring rod group are also provided with a material conveying inclined plate.

Furthermore, the driving mechanism comprises a driving motor and a driving gear arranged on an output shaft of the driving motor, each stirring shaft in the lower row is in meshing transmission through a driven gear, and the driving gear is in meshing transmission with one of the driven gears.

Furthermore, the horizontal anaerobic fermentation tank comprises a fermentation tank body and an air collecting bag arranged above the fermentation tank body.

Compared with the prior art, the beneficial effect that this application has lies in:

1. the upper and lower rows of vertical stirring shafts are arranged, so that the full reaction can be ensured. The feeding hole and the discharging hole are ingeniously arranged at two ends of the upper-discharging stirring shaft, the material conveying inclined plates are arranged on the upper-discharging stirring rod and are arranged in the same direction at a certain angle, stirring materials can be conveyed in the same direction (the discharging hole end), and the phenomenon of blockage in the material conveying process is guaranteed.

2. Stirring rods on the upper stirring shaft and the lower stirring shaft extend to the inner bottom surface of the anaerobic fermentation tank, and a stirring rod group and a material conveying inclined plate on the stirring rods can stir and crush materials at the bottom of the tank, so that the materials are prevented from being deposited and forming plates at the bottom of the tank.

3. The stirring rods on the upper stirring shaft and the lower stirring shaft are driven by a worm and gear mechanism, and the whole stirring structure is driven by one set of transmission system, so that the integration level of the fermentation device is improved, and the reduction of the occupied area and the energy consumption of the equipment are facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the arrangement of the stirring shafts in the anaerobic fermentation tank of the present invention;

FIG. 3 is a top view of the arrangement of the stirring shafts in the anaerobic fermentation tank of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a dry anaerobic conveying fermentation device for organic matters comprises a horizontal anaerobic fermentation tank 1 and a stirring device arranged in the anaerobic fermentation tank 1; the horizontal anaerobic fermentation tank 1 comprises a fermentation tank body 101 and a gas collection bag 102 arranged above the fermentation tank body 101, wherein the fermentation tank body 101 comprises a side wall, a top wall and a bottom wall, a fermentation cavity is formed in the tank body 101, and a stirring device is arranged in the fermentation cavity; the two opposite side walls are provided with a feed inlet 2 and a discharge outlet 3, the top wall is provided with a methane outlet 4, and methane generated in the fermentation cavity enters the gas collecting hood 102 through the methane outlet for collection and storage.

Organic matter materials such as straws and the like are conveyed into the horizontal anaerobic fermentation tank 1 through the feeding mechanism through the feeding hole 2 for anaerobic fermentation, residues after reaction are discharged through the discharging hole 3, and generated biogas enters the gas collecting bag 102 for collection.

Referring to fig. 1, 2 and 3, the stirring device of the present embodiment includes two rows of stirring shafts which are horizontally arranged and are vertical to each other; for the convenience of the following description, the lower row of the stirring shafts is named as a first stirring shaft 5, and the upper row of the stirring shafts is named as a second stirring shaft 6. The feed inlet 2 and the discharge outlet 3 of the horizontal anaerobic fermentation tank are arranged at two ends of the second stirring shaft 6.

A plurality of first stirring rod groups 7 are arranged on the first stirring shaft 5 at intervals along the axial direction of the first stirring shaft, and each first stirring rod group 7 comprises a plurality of first stirring rods 701 distributed along the circumferential direction of the cross section of the first stirring shaft 5. The second stirring shaft 6 is provided with a plurality of second stirring rod groups 8 which are arranged at intervals, each second stirring rod group 8 comprises a plurality of second stirring rods 801 which are distributed along the circumferential direction of the cross section of the second stirring shaft 6, the first stirring shaft 5 and the second stirring rod groups 8 on the second stirring shaft 6 are alternately distributed in the anaerobic fermentation tank along the extension direction of the second stirring shaft 6, and the second stirring rods 801 are uniformly distributed with first material conveying inclined plates 9.

The organic matter dry-type anaerobic conveying fermentation device further comprises a driving mechanism for driving the two rows of stirring shafts to rotate. In practical design, it is necessary to ensure that the first stirring rod 701 and the second stirring rod 801 do not interfere with each other when rotating, and can rotate freely in the tank body through the stirring shafts corresponding to each other.

This embodiment sets up two rows of looks vertically (mixing) shafts about, can guarantee going on fully of reaction, and ingenious in addition sets up feed inlet and discharge gate setting at the both ends of the (mixing) shaft of going up the row, sets up defeated material swash plate on the puddler of going up the row, and this defeated material swash plate becomes certain angle syntropy and arranges, can carry stirring material to same direction (discharge gate end), ensures out the material transportation process and does not appear blocking phenomenon.

Secondly, the residue after the upper reaction is accomplished is constantly pushed to the discharge gate by defeated material swash plate and is discharged, and the mud of bottom is the vortex state, is favorable to anaerobic microorganisms's reproduction to can guarantee that there is sufficient microorganism quantity in the jar body, guarantee going on fast of fermentation reaction.

The dry anaerobic fermentation device provided by the embodiment of the invention is suitable for single or mixed materials including but not limited to wheat straws, rice straws, corn straws, soybean straws, grass-wood straws, peanut straws and the like, and the mixed materials of the straws, dry feces, vegetable roots and the like are treated before anaerobic fermentation according to the process flow. Since the anaerobic fermentation device of the embodiment does not have a crushing function, the material needs to be crushed by a crushing mechanism before entering the device.

Referring to fig. 1 and 2, in practical application, the stirring rods on the two stirring shafts extend to the inner bottom surface of the anaerobic fermentation tank, that is, the first stirring rod 701 and the second stirring rod 801 extend to the bottom of the tank.

This embodiment is through all extending to anaerobic fermentation tank's interior bottom surface department with two rows of epaxial puddlers of stirring, can prevent that material deposit from reducing anaerobic fermentation's effective volume and sand setting phenomenon, ensures going on smoothly of anaerobic fermentation, and the stirring of anaerobic fermentation tank lower part is more drastic simultaneously, is favorable to going on of gaseous discharge and chemical reaction of anaerobic fermentation tank bottom production.

In addition, the rotation directions of the upper stirring shaft and the lower stirring shaft are vertical, the organic matter is fully stirred to be uniform, the dead angle is formed, the local acid accumulation of the raw material can be avoided, the contact and reaction between the microorganism and the raw material are increased, the gas production rate is improved, and the problems that the generated methane can not be released and the like are solved.

Referring to fig. 2 and 3, it can be understood that the two rows of stirring shafts are in mesh transmission through a worm gear mechanism. The first (mixing) shaft of this embodiment and the second (mixing) shaft between transmit through turbine worm mechanism, whole stirring structure is through one set of transmission system drive, has improved fermentation system's integrated level, is favorable to reducing equipment area and energy consumption.

Particularly, a worm rod in the worm and gear mechanism is positioned on a first stirring shaft 5, a feed inlet and a discharge outlet of the horizontal anaerobic fermentation tank 1 are arranged at two ends of a second stirring shaft 6, when a turbine 11 is positioned on the second stirring shaft 6, the stirring speeds of the upper layer and the lower layer in the anaerobic fermentation tank are different, the stirring speed of the lower layer is higher than that of the upper layer, the first stirring shaft 5 rotates at a higher speed, so that deposited materials at the bottom are quickly thrown upwards, the materials are ensured not to be deposited, and the gas at the bottom is also beneficial to upwards floating and outwards overflowing; and the second (mixing) shaft then rotates with lower speed, can ensure the dwell time of material, guarantees the abundant of reaction and goes on, also can avoid simultaneously because of the residue is discharged fast, causes the problem that the interior reaction microorganism of jar reduces rapidly.

Referring to fig. 3, it should be explained that the driving mechanism of the present embodiment includes a driving motor 10 and a driving gear 12 mounted on an output shaft of the driving motor 10, each first stirring shaft 5 is in mesh transmission with a driven gear 13, and the driving gear 12 is in mesh transmission with one of the driven gears 13. The embodiment can drive two rows of stirring shafts to rotate simultaneously only through one set of driving mechanism, improves the integration level of the fermentation device, and is beneficial to reducing the occupied area and energy consumption of equipment.

Referring to fig. 2 and fig. 3, as a preferred embodiment of the present invention, a third stirring rod group 14, that is, an intermediate stirring rod group, is further disposed between two adjacent second stirring rod groups 8 on the second stirring shaft 6, the third stirring rod group 14 includes a plurality of third stirring rods 1401 distributed along the circumferential direction of the cross section of the second stirring shaft 6 and having second material conveying inclined plates 15, and the length of the third stirring rods 1401 is smaller than the length of the second stirring rods 801.

Referring to fig. 2 and 3, the operation of the stirring device in the dry anaerobic fermentation tank is as follows: the driving motor 10 rotates to drive the driving gear 12 to rotate, the driving gear 12 rotates to drive the driven gear 13 to rotate, the driven gear 13 is arranged in multiple rows, the number of the rows arranged can be set according to the requirement of the production quantity, the rows are taken as an example, and the first stirring shaft 5 is driven by the driven gear 13. Each first stirring shaft 5 is rotated through a transmission gear arranged on each first stirring shaft 5, a worm section is driven by a driven gear 13 at the end part of the worm section, a turbine 11 is driven by the worm section to rotate, a second stirring shaft 6 rotates to drive a second stirring rod 801 and a third stirring rod 1401 on the second stirring shaft to rotate around the second stirring shaft 6, and the driven gear 13 drives a plurality of first stirring shafts 5 to rotate simultaneously, so that a first stirring rod 701 on the second stirring shaft is driven to rotate around the axis of the first stirring shaft. The first material conveying inclined plate 9 and the second material conveying inclined plate 15 drive the organic matters to move towards the material outlet along with the rotation of the stirring rod.

This implement dry-type anaerobic fermentation conveyor, violently erect two directions stirring, use the design of length (mixing) shaft, avoid wherein appearing interfering, be favorable to the homogeneous mixing of material simultaneously, be favorable to producing gas to discharge smoothly, the effectual material stirring in the fermentation process of having solved current dry-type anaerobic fermentation equipment is incomplete, and the stirring process has the dead angle, the problem of exhausting inequality to solved organic matter simultaneously and easily blockked up, the unable forward propulsive problem of material smoothly in dry-type anaerobic fermentation process.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.