CN214781661U - Asphalt development device for producing high-stability modified asphalt - Google Patents
Asphalt development device for producing high-stability modified asphalt Download PDFInfo
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- CN214781661U CN214781661U CN202121433336.9U CN202121433336U CN214781661U CN 214781661 U CN214781661 U CN 214781661U CN 202121433336 U CN202121433336 U CN 202121433336U CN 214781661 U CN214781661 U CN 214781661U
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Abstract
The utility model relates to a pitch device of developing for high stability modified asphalt production, relate to pitch processing equipment's field, it includes a jar body, set up in the inlet pipe at jar body top and set up in the discharging pipe of jar body bottom, the fixed driving motor that is provided with in top of the jar body, driving motor's output shaft coaxial line is fixed with rotating sleeve, rotating sleeve is provided with the horizontal stirring group of multiunit, horizontal stirring group rotates including a plurality of connecting rods and connects in rotating sleeve's horizontal stirring vane, and the axis perpendicular to rotating sleeve's of connecting rod axis, rotating sleeve and jar be provided with between the body and be used for ordering about horizontal stirring vane pivoted drive mechanism, horizontal stirring vane is provided with the vertical stirring group of multiunit, vertical stirring group is including a plurality of vertical stirring vane who is fixed in horizontal stirring vane. This application has the effect of promoting the raw materials liquid mixing degree of consistency, can promote the off-the-shelf quality of pitch to be favorable to promoting the production efficiency of high stability modified asphalt.
Description
Technical Field
The application relates to the field of asphalt processing equipment, in particular to an asphalt development device for producing high-stability modified asphalt.
Background
The product prepared from the high-stability modified asphalt has better low-temperature brittle fracture resistance and durability, so that the product prepared from the high-stability modified asphalt has good fatigue resistance, and the service life of the product is prolonged. The most critical link of the high-stability modified asphalt in the production process is asphalt development, so that the asphalt development device directly influences the quality of the high-stability modified asphalt.
The current chinese patent that patent application number is CN201820627921.4 provides a vertical pitch development jar, including the development jar body, the development jar body includes inner tank, shell, the inner tank upper surface is connected with the inlet pipe, inner tank bottom side is connected with the discharging pipe, still be equipped with agitating unit on the development jar body, the inner tank bottom is discoid bottom surface, the inner tank bottom still is connected with the blow off pipe, the lateral surface of inner tank is surrounded there is heat conduction oil pipe, development jar body bottom still is equipped with a base, the base left side with the shell drive is connected, the right side with the shell rotates and connects.
The related art described above has the following disadvantages: in the process of stirring the raw material liquid, the stirring device easily causes the raw material liquid to generate unidirectional vortex, so that the raw material liquid is not sufficiently mixed in other directions, and the raw material liquid is easily mixed unevenly.
SUMMERY OF THE UTILITY MODEL
In order to improve the easy inhomogeneous problem of mixing of raw materials liquid, this application provides an asphalt development device for production of high stability modified asphalt.
The application provides a pitch development device for production of high stability modified asphalt adopts following technical scheme:
the utility model provides a pitch development device for production of high stability modified asphalt, including a jar body, set up in the inlet pipe at jar body top with set up in the discharging pipe of jar body bottom, the fixed driving motor that is provided with in top of jar body, driving motor's output shaft coaxial line is fixed with rotating sleeve, rotating sleeve is provided with the horizontal stirring group of multiunit, horizontal stirring group include a plurality ofly rotate through the connecting rod connect in rotating sleeve's horizontal stirring vane, just the axis perpendicular to of connecting rod rotating sleeve's axis, rotating sleeve with be provided with between the jar body and be used for ordering about horizontal stirring vane pivoted drive mechanism, horizontal stirring vane is provided with the vertical stirring group of multiunit, vertical stirring group is fixed in including a plurality of horizontal stirring vane's vertical stirring vane.
Through adopting above-mentioned technical scheme, in the developmental process of pitch, driving motor drive rotates the sleeve and revolutes the telescopic axis rotation of commentaries on classics, and drive the synchronous rotation around the telescopic axis of rotation of multiunit horizontal stirring group, drive mechanism drives horizontal stirring vane and rotates around the axis of connecting rod simultaneously, and drive the synchronous rotation around the axis of connecting rod of the vertical stirring vane of multiunit, make horizontal stirring vane both revolute and take place the revolution around the sleeve and also take place the rotation around the connecting rod, and then it takes place the tumble flow of multiple direction to drive raw materials liquid, effectively avoid raw materials liquid to produce one-way vortex, with this effect that realizes promoting raw materials liquid mixing uniformity, can promote the off-the-shelf quality of pitch, be favorable to the popularization of high stability modified pitch, and can promote the development efficiency of pitch, be favorable to promoting the production efficiency of high stability modified pitch.
Optionally, the plurality of groups of the transverse stirring groups are arranged in an equal interval along the axial direction of the rotating sleeve, and the plurality of groups of the vertical stirring groups are arranged in an equal interval along the length direction of the transverse stirring blades.
Through adopting above-mentioned technical scheme, above-mentioned structural design's horizontal stirring group and vertical stirring group can be with jar raw materials liquid of internal portion fully and evenly contact, are favorable to further promoting the effect of raw materials liquid mixing degree of consistency.
Optionally, a plurality of the transverse stirring blades of two adjacent groups of the transverse stirring groups are staggered along the circumferential direction of the rotating sleeve.
Through adopting above-mentioned technical scheme, above-mentioned structural design's horizontal stirring vane can be with the raw materials liquid of jar internal portion fully and evenly contact, is favorable to further promoting the effect of raw materials liquid mixing degree of consistency.
Optionally, drive mechanism including rotate in the dwang of jar body bottom, fixed cover are located the initiative bevel gear of dwang and a plurality of fixed cover respectively locate a plurality ofly the driven bevel gear of connecting rod, the dwang is worn to locate the rotating sleeve is inside and with the rotating sleeve coaxial line is arranged, the dwang with be provided with drive assembly between the rotating sleeve, drive assembly is used for ordering about the dwang with the rotating sleeve lasts the antiport.
Through adopting above-mentioned technical scheme, at the developmental process of pitch, drive assembly drives the dwang and rotates the sleeve and last antiport for relative angular velocity between rotating sleeve and the dwang is great, and opens the meshing transmission between initiative bevel gear and the driven bevel gear, can drive the axis rotation of connecting rod and horizontal stirring vane around the connecting rod in step, and be favorable to ordering about horizontal stirring vane to rotate around the connecting rod fast.
Optionally, drive assembly is fixed in including the coaxial line rotate the internal perisporium of sleeve ring, rotate connect in the driven gear and the fixed cover of jar body bottom are located the reversing gear of dwang, the inner circle of ring gear with driven gear meshes, driven gear with the reversing gear meshing.
Through adopting above-mentioned technical scheme, in the development of pitch, driving motor drives and rotates the sleeve and revolve the telescopic axis rotation with the ring gear synchronous revolution, and through ring gear and driven gear's meshing transmission, make driven gear and ring gear syntropy rotate, the meshing transmission between rethread driven gear and the driving gear, make driven gear and the mutual antiport of driving gear, can make to rotate and have great relative angular velocity between sleeve and the dwang, and open the meshing transmission between initiative bevel gear and the driven bevel gear, can drive the axis rotation of connecting rod and horizontal stirring vane around the connecting rod in step, need not additionally to increase the motor drive dwang and rotate, be favorable to reduction in production cost.
Optionally, the periphery wall of the rotating sleeve is fixed with a plurality of fixing rods, and the fixing rods are far away from the end part of the rotating sleeve is fixed with a scraper attached to the inner periphery wall of the tank body.
Through adopting above-mentioned technical scheme, at the developmental process of pitch, the dead lever is followed and is rotated the synchronous rotation of sleeve to drive the scraper blade and hang the pitch of jar internal wall, reduce pitch and bin up in jar risk of internal wall, can promote the heat transfer effect of the jar body, be favorable to further promoting the quality of product.
Optionally, an inclined surface is formed at the end of the scraper, and the inclined surface of the scraper faces the rotating sleeve.
By adopting the technical scheme, the scraper with the structural design can better hang the asphalt on the inner wall of the tank body.
Optionally, an additive pipe is arranged at the top of the tank body.
By adopting the technical scheme, the additive pipe is convenient for gradually adding the additive in the asphalt development process, and is beneficial to uniformly mixing the additive in the raw material liquid.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the transverse stirring blade revolves around the rotating sleeve and drives the vertical stirring blade to rotate around the connecting rod together, so that the raw material liquid is driven to generate rolling flows in multiple directions, unidirectional vortex flow of the raw material liquid is effectively avoided, the effect of improving the mixing uniformity of the raw material liquid is realized, and the quality of an asphalt finished product can be improved;
2. the rotating rod and the rotating sleeve continuously rotate in the reverse direction through the gear ring, the driven gear and the reverse gear, and the transverse stirring blade is driven to rotate around the connecting rod through the driving bevel gear and the driven bevel gear, so that the transverse stirring blade can be driven to rotate around the connecting rod quickly, the rotating rod is driven to rotate without additionally adding a motor, and the production cost is reduced;
3. the scraper can hang off the asphalt on the inner wall of the tank body in the stirring process, thereby reducing the risk that the asphalt is accumulated on the inner wall of the tank body, improving the heat transfer effect of the tank body and being beneficial to further improving the quality of products.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a drive motor, a rotating sleeve, a transmission mechanism and a drive assembly according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a drive motor, rotating sleeve, transmission and drive assembly according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
fig. 5 is an enlarged schematic view of a portion B in fig. 2.
Reference numerals: 1. a tank body; 11. a feed pipe; 12. a discharge pipe; 13. a drive motor; 14. an additive tube; 2. rotating the sleeve; 21. a transverse stirring blade; 211. a vertical stirring blade; 22. a connecting rod; 23. fixing the rod; 231. a squeegee; 3. a transmission mechanism; 31. rotating the rod; 32. a drive bevel gear; 33. a driven bevel gear; 4. a drive assembly; 41. a ring gear; 42. a driven gear; 421. a vertical rod; 43. and a reverse gear.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses an asphalt development device for high-stability modified asphalt production. Referring to fig. 1, the asphalt development device for producing high-stability modified asphalt comprises a tank body 1, a feeding pipe 11 arranged at the top of the tank body 1 and a discharging pipe 12 arranged at the bottom of the tank body 1, wherein the tank body 1 comprises a cylindrical part and a conical bottom welded on the end surface of the bottom of the cylindrical part. The top wall of the cylindrical part of the tank body 1 is provided with a feed inlet and an additive port, the feed pipe 11 is welded at the feed inlet of the tank body 1, and the feed inlet of the tank body 1 is welded with an additive pipe 14 which is convenient for continuously adding the additive. The discharge gate has been seted up at the bottom of jar body 1 awl, and discharging pipe 12 welds in the discharge gate department of jar body 1.
Referring to fig. 2 and 3, a driving motor 13 is fixedly arranged at the top of the tank body 1 through bolts, an output shaft of the driving motor 13 is arranged along the vertical direction, a rotating sleeve 2 is coaxially fixed on the output shaft of the driving motor 13, and the rotating sleeve 2 is cylindrical. The rotating sleeve 2 is provided with a plurality of groups of transverse stirring groups which are arranged at equal intervals along the axial direction of the rotating sleeve 2. Horizontal stirring group includes a plurality of horizontal stirring vane 21 of connecting in rotating sleeve 2 through connecting rod 22 rotation, and horizontal stirring vane 21 can be the cuboid shape, still can be the cylinder shape, selects first in this application embodiment, and the horizontal stirring vane 21 of cuboid shape is bigger with raw materials liquid's area of contact, and the length direction perpendicular to of horizontal stirring vane 21 rotates sleeve 2's axial, and a plurality of horizontal stirring vane 21 of adjacent two sets of horizontal stirring group are along rotating sleeve 2's circumference staggered arrangement. The end part of the transverse stirring blade 21 close to the rotating sleeve 2 is welded with a connecting rod 22, the connecting rod 22 is cylindrical and is axially parallel to the length direction of the transverse stirring blade 21, the axis of the connecting rod 22 is perpendicular to the axis of the rotating sleeve 2, the connecting rod 22 is rotatably connected to the rotating sleeve 2 around the central axis, and a transmission mechanism 3 for driving the transverse stirring blade 21 to rotate is arranged between the rotating sleeve 2 and the tank body 1;
and the horizontal stirring vanes 21 are provided with a plurality of groups of vertical stirring groups which are arranged at equal intervals along the length direction of the horizontal stirring vanes 21. The vertical stirring group comprises a plurality of vertical stirring blades 211 fixed on the side walls of the transverse stirring blades 21, the vertical stirring blades 211 are provided with four vertical stirring blades 211, and the four vertical stirring blades 211 are respectively welded on the side walls of the transverse stirring blades 21. Vertical stirring vane 211 can be the cuboid shape, still can be the cylinder shape, selects first in this application embodiment, and the vertical stirring vane 211 of cuboid shape is bigger with the area of contact of raw materials liquid.
In the development process of pitch, driving motor 13 drive rotates sleeve 2 and revolutes the axis rotation of rotating sleeve 2, and drive the synchronous axis rotation of revoluting rotating sleeve 2 of multiunit horizontal stirring group, drive mechanism 3 drives horizontal stirring vane 21 and rotates around the axis of connecting rod 22 simultaneously, and drive the synchronous axis rotation around connecting rod 22 of the vertical stirring vane 211 of multiunit, make horizontal stirring vane 21 both revolute and take place the revolution and also take place the rotation around connecting rod 22 around rotating sleeve 2, and then it takes place the tumble flow of multiple direction to drive raw materials liquid, effectively avoid raw materials liquid to produce one-way vortex, realize the effect that promotes the raw materials liquid mixing degree of consistency with this, can promote the off-the-shelf quality of pitch, be favorable to the popularization of high stability modified asphalt, and can promote the development efficiency of pitch, be favorable to promoting the production efficiency of high stability modified asphalt. Above-mentioned structural design's horizontal stirring group and vertical stirring group can be with the inside raw materials liquid of jar body 1 abundant and evenly contact, are favorable to further promoting the effect of raw materials liquid mixing degree of consistency.
Referring to fig. 3 and 4, the transmission mechanism 3 includes a rotating rod 31 rotating at the bottom of the tank body 1, a driving bevel gear 32 fixedly sleeved on the rotating rod 31, and a plurality of driven bevel gears 33 respectively fixedly sleeved on the plurality of connecting rods 22, the rotating rod 31 is cylindrical, the rotating rod 31 rotates around the central axis, and the rotating rod 31 is arranged inside the rotating sleeve 2 in a penetrating manner and is arranged coaxially with the rotating sleeve 2. And the drive bevel gear 32 and the driven bevel gear 33 are both located inside the rotating sleeve 2.
Referring to fig. 2 and 5, a driving assembly 4 is disposed between the rotating rod 31 and the rotating sleeve 2, the driving assembly 4 is configured to drive the rotating rod 31 and the rotating sleeve 2 to rotate continuously in opposite directions, the driving assembly 4 includes a gear ring 41 coaxially fixed on the inner peripheral wall of the rotating sleeve 2, a driven gear 42 rotatably connected to the bottom of the can body 1, and a counter gear 43 fixedly sleeved on the rotating rod 31, an inner ring of the gear ring 41 is engaged with the driven gear 42, and the driven gear 42 is engaged with the counter gear 43. The driven gear 42 is coaxially welded with a vertical rod 421, and the vertical rod 421 is rotatably connected to the conical bottom of the tank body 1 around the central axis. One or more driven gears 42 may be provided, and in the embodiment of the present application, two driven gears 42 are provided, and the two driven gears 42 are equally arranged along the circumferential direction of the rotating rod 31, which is favorable for stably driving the rotating rod 31 to rotate.
In the development process of pitch, driving motor 13 drives and rotates sleeve 2 and the synchronous axis rotation that revolutes of ring gear 41 and rotate sleeve 2, and the meshing transmission through ring gear 41 and driven gear 42, make driven gear 42 and ring gear 41 syntropy rotate, the meshing transmission between rethread driven gear 42 and the driving gear, make driven gear 42 and the mutual antiport of driving gear, can make and rotate sleeve 2 and dwang 31 between have great relative angular velocity, and open the meshing transmission between drive bevel gear 32 and the driven bevel gear 33, can drive connecting rod 22, horizontal stirring vane 21 and vertical stirring vane 211 rotate around connecting rod 22's axis in step, need not additionally to increase motor drive dwang 31 and rotate, be favorable to reducing production cost.
Referring to fig. 2 and 3, in order to reduce the asphalt accumulated on the inner wall of the tank body 1, a plurality of fixing rods 23 are fixed to the outer circumferential wall of the middle section of the rotating sleeve 2 by welding, the fixing rods 23 are rectangular parallelepiped, and the plurality of fixing rods 23 are arranged at equal intervals along the circumferential direction of the rotating sleeve 2. The end of the fixing rod 23 far away from the rotating sleeve 2 is fixed with a scraper 231 attached to the inner peripheral wall of the tank 1 by welding, the end of the scraper 231 is provided with an inclined surface, and the inclined surface of the scraper 231 faces the rotating sleeve 2.
In the development process of the asphalt, the fixing rod 23 rotates synchronously along with the rotating sleeve 2 and drives the scraper 231 to hang the asphalt on the inner wall of the tank body 1, the inclined surface of the scraper 231 can better hang the asphalt on the inner wall of the tank body 1, the risk that the asphalt is accumulated on the inner wall of the tank body 1 is reduced, the heat transfer effect of the tank body 1 can be improved, and the further improvement of the product quality is facilitated.
The implementation principle of the asphalt development device for producing the high-stability modified asphalt is as follows: in the development process of asphalt, the driving motor 13 drives the rotating sleeve 2 to rotate around the axis of the rotating sleeve 2 and drives a plurality of groups of transverse stirring sets to synchronously rotate around the axis of the rotating sleeve 2, meanwhile, the driving motor 13 drives the rotating sleeve 2 and the gear ring 41 to rotate around the axis of the rotating sleeve 2 synchronously, the driven gear 42 and the gear ring 41 rotate in the same direction through the meshing transmission of the gear ring 41 and the driven gear 42, the driven gear 42 and the driving gear rotate in opposite directions through the meshing transmission between the driven gear 42 and the driving gear, that is, a large relative angular velocity exists between the rotating sleeve 2 and the rotating rod 31, and the meshing transmission between the drive bevel gear 32 and the driven bevel gear 33 is turned on, the connecting rod 22 and the transverse stirring blades 21 can be driven to synchronously rotate around the axis of the connecting rod 22, and the groups of vertical stirring blades 211 are driven to synchronously rotate around the axis of the connecting rod 22;
make horizontal stirring vane 21 both revolute and move sleeve 2 and take place the revolution, also drive vertical stirring vane 211 and take place the rotation round connecting rod 22 together, and then drive the raw materials liquid and take place the tumble flow of a plurality of directions, effectively avoid raw materials liquid to produce one-way vortex, realize the effect that promotes raw materials liquid mixing uniformity with this, can promote the off-the-shelf quality of pitch, be favorable to the popularization of high stability modified asphalt, and can promote the development efficiency of pitch, be favorable to promoting the production efficiency of high stability modified asphalt.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an asphalt development device for production of high stability modified asphalt which characterized in that: comprises a tank body (1), an inlet pipe (11) arranged at the top of the tank body (1) and a discharge pipe (12) arranged at the bottom of the tank body (1), wherein a driving motor (13) is fixedly arranged at the top of the tank body (1), the output shaft coaxial line of the driving motor (13) is fixed with a rotating sleeve (2), the rotating sleeve (2) is provided with a plurality of groups of transverse stirring groups, each transverse stirring group comprises a plurality of transverse stirring blades (21) which are rotatably connected with the rotating sleeve (2) through connecting rods (22), the axis of each connecting rod (22) is perpendicular to the axis of the rotating sleeve (2), a transmission mechanism (3) used for driving the transverse stirring blades (21) to rotate is arranged between the rotating sleeve (2) and the tank body (1), and the transverse stirring blades (21) are provided with a plurality of groups of vertical stirring groups, the vertical stirring group comprises a plurality of vertical stirring blades (211) fixed on the transverse stirring blades (21).
2. The asphalt development device for high-stability modified asphalt production according to claim 1, characterized in that: the multiple groups of the transverse stirring groups are arranged in an equal interval along the axial direction of the rotating sleeve (2), and the multiple groups of the vertical stirring groups are arranged in an equal interval along the length direction of the transverse stirring blades (21).
3. The asphalt development device for high-stability modified asphalt production according to claim 2, characterized in that: the plurality of transverse stirring blades (21) of two adjacent groups of transverse stirring groups are arranged in a staggered mode along the circumferential direction of the rotating sleeve (2).
4. The asphalt development device for high-stability modified asphalt production according to claim 1, characterized in that: drive mechanism (3) including rotate in dwang (31), the fixed cover of the jar body (1) bottom is located a plurality of are located to the initiative bevel gear (32) of dwang (31) and a plurality of fixed cover respectively driven bevel gear (33) of connecting rod (22), dwang (31) are worn to locate rotate the sleeve (2) inside and with rotating sleeve (2) coaxial line is arranged, dwang (31) with be provided with drive assembly (4) between rotating sleeve (2), drive assembly (4) are used for ordering about dwang (31) with rotating sleeve (2) last the antiport.
5. The asphalt development device for high-stability modified asphalt production according to claim 4, characterized in that: drive assembly (4) are fixed in including the coaxial line rotate ring gear (41), the rotation of sleeve (2) internal perisporium connect in driven gear (42) and the fixed cover of the jar body (1) bottom are located the reverse gear (43) of dwang (31), the inner circle of ring gear (41) with driven gear (42) meshing, driven gear (42) with reverse gear (43) meshing.
6. The asphalt development device for high-stability modified asphalt production according to claim 1, characterized in that: the periphery wall of rotating sleeve (2) is fixed with a plurality of dead levers (23), dead lever (23) are kept away from the tip of rotating sleeve (2) be fixed with scraper blade (231) of the laminating of jar body (1) internal perisporium.
7. The asphalt development device for high-stability modified asphalt production according to claim 6, characterized in that: the end part of the scraper (231) is provided with an inclined surface, and the inclined surface of the scraper (231) faces the rotating sleeve (2).
8. The asphalt development device for high-stability modified asphalt production according to claim 1, characterized in that: an additive pipe (14) is arranged at the top of the tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433336.9U CN214781661U (en) | 2021-06-25 | 2021-06-25 | Asphalt development device for producing high-stability modified asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433336.9U CN214781661U (en) | 2021-06-25 | 2021-06-25 | Asphalt development device for producing high-stability modified asphalt |
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| CN214781661U true CN214781661U (en) | 2021-11-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837039A (en) * | 2022-04-22 | 2022-08-02 | 李婷 | Asphalt foaming device and asphalt foaming method |
| CN115155375A (en) * | 2022-06-30 | 2022-10-11 | 山东高速物资储运有限公司 | Environment-friendly modified asphalt production system |
| CN117305071A (en) * | 2023-07-24 | 2023-12-29 | 万木集团生物科技(武邑)有限公司 | Dry biogas fermentation device and fermentation process thereof |
-
2021
- 2021-06-25 CN CN202121433336.9U patent/CN214781661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837039A (en) * | 2022-04-22 | 2022-08-02 | 李婷 | Asphalt foaming device and asphalt foaming method |
| CN114837039B (en) * | 2022-04-22 | 2023-12-08 | 山东顺兴隆建设工程有限公司 | Asphalt foaming method |
| CN115155375A (en) * | 2022-06-30 | 2022-10-11 | 山东高速物资储运有限公司 | Environment-friendly modified asphalt production system |
| CN117305071A (en) * | 2023-07-24 | 2023-12-29 | 万木集团生物科技(武邑)有限公司 | Dry biogas fermentation device and fermentation process thereof |
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