CN113477371A - Production of ready-mixed mortar is with smashing auxiliary device - Google Patents
Production of ready-mixed mortar is with smashing auxiliary device Download PDFInfo
- Publication number
- CN113477371A CN113477371A CN202111040794.0A CN202111040794A CN113477371A CN 113477371 A CN113477371 A CN 113477371A CN 202111040794 A CN202111040794 A CN 202111040794A CN 113477371 A CN113477371 A CN 113477371A
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- crushing
- conveying
- bin
- storehouse
- gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a crushing auxiliary device for production of ready-mixed mortar, which relates to the technical field of general crushing equipment and comprises a conveying bin for conveying and feeding materials, a conveying and crushing bin for crushing mortar, a frame for supporting, a receiving groove for containing crushed mortar, a sand storage tank and a slurry storage tank for containing raw materials. The invention carries out the crushing and stirring of the ready-mixed mortar in parts, and sets the reaction bin into two parts, so that the crushing time can be controlled, and the crushing is more sufficient.
Description
Technical Field
The invention relates to the technical field of general crushing equipment, in particular to a crushing auxiliary device for production of ready-mixed mortar.
Background
The crushing auxiliary device for the ready-mixed mortar is widely used in the field of building material production equipment; found in the use of present premixed mortar production with smashing auxiliary device, the raw materials has viscidity after mixing with water, when carrying in the cavity in transport storehouse, often has a small part raw materials to glue on the cavity inner wall of carrying the storehouse, because helical blade has the certain distance with the cavity inside of carrying the storehouse, leads to gluing the raw materials on carrying the storehouse cavity inner wall to be difficult to the clearance, and the practicality is relatively poor.
Patent No. CN201911253972.0 discloses a crushing auxiliary device for production of ready-mixed mortar, which scrapes off raw materials adhered to the inner wall of a cavity of a conveying bin by arranging a scraper component, but a crushing roller and a conveying roller of the device are arranged together, so that the crushing effect is not uniform.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a crushing auxiliary device for production of premixed mortar comprises a conveying bin for conveying feeding materials, a conveying and crushing bin for crushing mortar, a frame for supporting, a receiving groove for containing crushed mortar, a sand material storage groove and a slurry storage groove for containing raw materials, wherein the conveying bin is rotatably connected with the conveying and crushing bin, the conveying bin is fixedly arranged on the frame, the conveying and crushing bin is rotatably arranged on the frame, the receiving groove is fixedly arranged on the frame, the sand material storage groove is fixedly arranged on the frame, the slurry storage groove is fixedly arranged on the frame, an upper gear closed ring is rotatably arranged on the conveying bin, a lower gear closed ring is rotatably arranged on the conveying bin, the upper gear closed ring and the lower gear closed ring form gear fit, a central rod is rotatably arranged on the lower gear closed ring, a connecting rod is slidably connected onto the central rod, and the connecting rod is connected with the central rod through a compression spring, the connecting rod is connected with crushing roller rotating assembly, and crushing roller rotating assembly installs on carrying crushing storehouse, rotates on the connecting rod and installs gear support piece, and fixed mounting has the rack on the well core rod, and well core rod forms the rack and pinion cooperation with gear support piece, and fixed mounting has crushing roller on the gear support piece, and gear support piece goes up to rotate and installs the delivery board, and gear support piece rotates the mounted position with the delivery board and has torsion spring.
Further, still including smashing storehouse rotating assembly, pan feeding switching module, baffle subassembly, smashing the storehouse rotating assembly and installing in the frame and carrying and smashing between the storehouse, pan feeding switching module installs in carrying the storehouse top, pan feeding switching module installs in sand material holding tank and thick liquids holding tank below, and the baffle unit mount is smashed on the storehouse in the transport.
Furthermore, a rear covering plate is fixedly arranged on the conveying and crushing bin, the upper part of a front covering plate is rotatably arranged on the conveying bin, the lower part of the front covering plate is slidably arranged on the conveying and crushing bin, and the upper part of the front covering plate is rotatably connected with the lower part of the front covering plate.
Furthermore, the size of the upper half part of the rear covering plate is the same as that of the upper part of the front covering plate, and the size of the lower half part of the rear covering plate is the same as that of the lower part of the front covering plate. The setting size is the same to ensure complete coating.
Further, smash storehouse rotating assembly including the upset motor, upset motor fixed mounting is in the frame, and the big belt pulley fixed mounting of input is on the output shaft of upset motor, and the big belt pulley fixed mounting of output is on carrying and smashing the storehouse, and the upset belt is connected on big belt pulley of input and the big belt pulley of output.
Further, crushing roller rotating assembly includes crushing motor, and crushing motor fixed mounting is on carrying crushing storehouse, and input belt lace wheel fixed mounting is on crushing motor's output shaft, and output belt lace wheel fixed mounting is on the connecting rod, and input belt lace wheel passes through crushing belt with output belt lace wheel to be connected, and the pressure roller rotates to be installed and carries crushing storehouse, and the pressure roller compresses tightly on crushing belt's surface.
Further, the feeding switching assembly comprises a switching motor, the switching motor is fixedly mounted on the rack, a pinion is fixedly mounted on an output shaft of the switching motor, the switching feeding plate is rotatably mounted on the conveying bin, a gearwheel is fixedly mounted on the switching feeding plate, and the gearwheel and the pinion form gear fit.
Further, the baffle assembly comprises a chute frame, the chute frame is fixedly installed on the lower portion of the front covering plate, the swing frame is rotatably installed on the conveying and crushing bin, the swing frame is connected with the chute frame in a sliding mode, the pressing sheet is fixedly installed on the swing frame, and the discharging plate is rotatably installed on the rack.
Compared with the prior art, the invention has the beneficial effects that: (1) according to the crushing auxiliary device for producing the ready-mixed mortar, the reaction bin is divided into two parts, the crushing and conveying steps are performed in a divided mode, and the crushing is more uniform; (2) the reaction bin of the crushing auxiliary device for production of the ready-mixed mortar can be turned over, and raw materials are poured in the turning process to prevent sticking; (3) the feeding devices of the crushing auxiliary device for producing the ready-mixed mortar are switched in different parts, so that uniform feeding is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of a closed loop structure according to the present invention.
FIG. 3 is a schematic view of the connecting rod structure of the present invention.
FIG. 4 is a schematic view of the pulverizing rollers and the conveyor plate of the present invention.
FIG. 5 is a schematic view of a cover plate according to the present invention.
Figure 6 is a schematic view of the grinding bin rotating assembly of the present invention.
FIG. 7 is a schematic view of a baffle assembly of the present invention.
FIG. 8 is a schematic view of a material feeding switching assembly according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example (b): as shown in fig. 1-4, the auxiliary crushing device for producing ready-mixed mortar comprises a conveying bin 1 for conveying feeding materials, a conveying and crushing bin 2 for crushing mortar, a frame 3 of a supporting device, a receiving bin 4 for containing crushed mortar, a sand storage tank 5 and a slurry storage tank 6 for containing raw materials, wherein the conveying bin 1 is rotatably connected with the conveying and crushing bin 2, the conveying bin 1 is fixedly arranged on the frame 3, the conveying and crushing bin 2 is rotatably arranged on the frame 3, the receiving bin 4 is fixedly arranged on the frame 3, the sand storage tank 5 is fixedly arranged on the frame 3, the slurry storage tank 6 is fixedly arranged on the frame 3, an upper gear closed ring 14 is rotatably arranged on the conveying bin 1, a lower gear closed ring 15 is rotatably arranged on the conveying bin 1, the upper gear closed ring 14 forms gear fit with the lower gear closed ring 15, a central rod 16 is rotatably arranged on the lower gear closed ring 15, sliding connection has connecting rod 17 on well core rod 16, connecting rod 17 passes through compression spring 18 with well core rod 16 and is connected, connecting rod 17 is connected with crushing roller rotating assembly 8, crushing roller rotating assembly 8 is installed on carrying and smashes storehouse 2, rotate on the connecting rod 17 and install gear support piece 19, fixed mounting has the rack on well core rod 16, well core rod 16 forms the rack and pinion cooperation with gear support piece 19, fixed mounting has crushing roller 21 on the gear support piece 19, rotate on the gear support piece 19 and install delivery board 20, gear support piece 19 rotates the mounted position with delivery board 20 and has torsion spring. Carry and smash storehouse 2 and rotate for carrying storehouse 1, it rotates to drive well core rod 16 and connecting rod 17, gear closed ring 15 rotates under the drive, gear closed ring 15 rotates and drives gear closed ring 14 and rotates down, switch the open position, carry and smash storehouse 2 when carrying storehouse 1 upward rotation, well core rod 16 and connecting rod 17 are for satisfying length demand relative slip, drive gear support piece 19 on the connecting rod 17 and rotate, thereby switch delivery board 20 and crushing roller 21, torsion spring on the delivery board 20 makes delivery board 20 be in when using and rotates certain angle, paste closely on connecting rod 17 surface when delivery board 20 does not use, compression spring 18 is used for the return of well core rod 16 and connecting rod 17 inter-movement. Still including smashing storehouse rotating assembly 7, pan feeding switching module 9, baffle subassembly 10, smash storehouse rotating assembly 7 and install in frame 3 and carry and smash between the storehouse 2, pan feeding switching module 9 is installed in carrying 1 top in the storehouse, and pan feeding switching module 9 is installed in sand material holding tank 5 and thick liquids holding tank 6 below, and baffle subassembly 10 is installed on carrying and smashing storehouse 2.
The cover plate structure shown in fig. 5 is a structure in which the conveying and pulverizing bin 2 is fixedly provided with a rear cover plate 11, the conveying bin 1 is rotatably provided with a front cover plate upper part 12, the conveying and pulverizing bin 2 is slidably provided with a front cover plate lower part 13, and the front cover plate upper part 12 is rotatably connected with the front cover plate lower part 13. The upper half of the rear shroud 11 is the same size as the upper front shroud 12, and the lower half of the rear shroud 11 is the same size as the lower front shroud 13. After the conveying and crushing bin 2 rotates relative to the conveying bin 1, an opening is formed at the connecting position, the rear covering plate 11 covers the conveying bin 1 and the rear surface position of the conveying and crushing bin 2, when the conveying and crushing bin 2 rotates, the upper part 12 of the front covering plate rotates on the conveying bin 1, the lower part 13 of the front covering plate slides on the conveying and crushing bin 2, the upper part 12 of the front covering plate covers the front surface position of the conveying bin 1, the lower part 13 of the front covering plate covers the front surface position of the conveying and crushing bin 2, and meanwhile, the upper part 12 of the front covering plate is tightly attached to the lower part 13 of the front covering plate and the rear covering plate 11 to ensure sealing.
The crushing bin rotating assembly 7 shown in fig. 1 and 6 comprises a turnover motor 701, the turnover motor 701 is fixedly installed on the frame 3, an input large belt pulley 702 is fixedly installed on an output shaft of the turnover motor 701, an output large belt pulley 704 is fixedly installed on the conveying crushing bin 2, and a turnover belt 703 is connected to the input large belt pulley 702 and the output large belt pulley 704. The overturning motor 701 is started to drive the large input belt pulley 702 to rotate, the large input belt pulley 702 rotates to drive the large output belt pulley 704 to rotate through the transmission of the overturning belt 703, and the large output belt pulley 704 rotates to drive the conveying and crushing bin 2 to rotate on the frame 3.
The crushing roller rotating assembly 8 shown in fig. 1, 2, 6 and 7 comprises a crushing motor 801, the crushing motor 801 is fixedly arranged on the conveying and crushing bin 2, an input small belt pulley 802 is fixedly arranged on an output shaft of the crushing motor 801, an output small belt pulley 804 is fixedly arranged on a connecting rod 17, the input small belt pulley 802 and the output small belt pulley 804 are connected through a crushing belt 803, a pressing roller 805 is rotatably arranged on the conveying and crushing bin 2, and the pressing roller 805 is pressed on the surface of the crushing belt 803. The overturning motor 701 is started to drive the large input belt pulley 702 to rotate, the large input belt pulley 702 rotates to drive the large output belt pulley 704 to rotate through the transmission of the overturning belt 703, and the large output belt pulley 704 rotates to drive the conveying and crushing bin 2 to rotate on the frame 3.
The feeding switching assembly 9 shown in fig. 1, 2, 7 and 8 includes a switching motor 901, the switching motor 901 is fixedly installed on the frame 3, a pinion 902 is fixedly installed on an output shaft of the switching motor 901, a switching feeding plate 904 is rotatably installed on the conveying bin 1, a gearwheel 903 is fixedly installed on the switching feeding plate 904, and the gearwheel 903 and the pinion 902 form a gear fit. The crushing motor 801 is started to drive the input small belt pulley 802 to rotate, the input small belt pulley 802 rotates to drive the output small belt pulley 804 to rotate through the transmission of the crushing belt 803, the output small belt pulley 804 rotates to drive the connecting rod 17 to rotate, and the pressing roller 805 ensures that the crushing belt 803 is in a pressing state. Switching motor 901 starts, drives pinion 902 and rotates, and pinion 902 rotates and drives gear wheel 903 and rotates, and gear wheel 903 rotates and drives and switches pan feeding board 904 and rotate, switches only half round face opening on pan feeding board 904, can the ejection of compact when sand material holding tank 5 and thick liquids holding tank 6's discharge gate is aimed at the opening that switches pan feeding board 904.
The baffle plate assembly 10 shown in fig. 1 and 7 comprises a chute frame 1001, the chute frame 1001 is fixedly arranged on the lower part 13 of the front cover plate, a swing frame 1002 is rotatably arranged on the conveying crushing bin 2, the swing frame 1002 is slidably connected with the chute frame 1001, a pressing sheet 1003 is fixedly arranged on the swing frame 1002, and a discharging plate 1004 is rotatably arranged on the frame 3. The lower part 13 of the front cover plate slides on the conveying and crushing bin 2 to drive the chute frame 1001 to move, the chute frame 1001 moves to drive the swing frame 1002 to swing on the conveying and crushing bin 2, when the pressing sheet 1003 on the swing frame 1002 is pressed on the surface of the discharging plate 1004, the discharging plate 1004 is closed, when the swing frame 1002 swings to return, the pressing sheet 1003 is not pressed on the discharging plate 1004, and the discharging plate 1004 can be opened.
The working principle is as follows: firstly, crushing the mortar, wherein the conveying crushing bin 2 of the device is in a falling state at the moment, the upper gear closed ring 14 and the lower gear closed ring 15 are switched to a slurry entering station, the gear supporting piece 19 on the connecting rod 17 rotates to a state that the crushing roller 21 stands to perform crushing, and the switching feeding plate 904 also rotates to a position aligning the opening with the slurry storage tank 6 to enable the slurry to fall; after the crushing and stirring is completed, the conveying crushing bin 2 rotates to a horizontal state, the upper gear closed ring 14 and the lower gear closed ring 15 are switched to sand material entering stations, the gear supporting piece 19 on the connecting rod 17 rotates to the vertical state of the conveying plate 20 to carry out conveying work, the switching feeding plate 904 also rotates to the position of the opening aligned with the sand material storage tank 5, the sand material falls to facilitate the next crushing work, the mortar is transmitted to the tail end of the conveying crushing bin 2 through the rotation of the conveying plate 20, the discharging plate 1004 is jacked up, and the mortar falls into the receiving tank 4.
Claims (8)
1. The utility model provides a premixed mortar production is with smashing auxiliary device, is including the transport storehouse that is used for transmitting the feeding for the storehouse is smashed in the transport of smashing the mortar, is used for the frame that supports, is used for adorning the receipts silo of the mortar that smashes, and is used for adorning the sand material holding tank and the thick liquids holding tank of raw materials, its characterized in that:
the conveying bin is rotatably connected with the conveying and crushing bin, the conveying bin is fixedly arranged on the rack, the conveying and crushing bin is rotatably arranged on the rack, the collecting groove is fixedly arranged on the rack, the sand storage tank is fixedly arranged on the rack, the slurry storage tank is fixedly arranged on the rack, an upper gear sealing ring is rotatably arranged on the conveying bin, a lower gear sealing ring is rotatably arranged on the conveying bin, the upper gear sealing ring and the lower gear sealing ring form gear fit, a central rod is rotatably arranged on the lower gear sealing ring, a connecting rod is slidably connected onto the central rod and is connected with the central rod through a compression spring, the connecting rod is connected with a crushing roller rotating assembly, the crushing roller rotating assembly is arranged on the conveying and crushing bin, a gear support member is rotatably arranged on the connecting rod, a rack is fixedly arranged on the central rod, the central rod and the gear support member form gear-rack fit, and a crushing roller is fixedly arranged on the gear support member, the gear supporting piece is rotatably provided with a conveying plate, and a torsion spring is arranged at the rotating installation position of the gear supporting piece and the conveying plate.
2. The crushing auxiliary device for producing ready-mixed mortar according to claim 1, characterized in that: still smash the storehouse rotating assembly and install in the frame and carry and smash between the storehouse including smashing storehouse rotating assembly, pan feeding switching module, baffle subassembly, and pan feeding switching module installs in carrying the storehouse top, and pan feeding switching module installs in sand material holding tank and thick liquids holding tank below, and the baffle unit mount is smashed on the storehouse in the transport.
3. The crushing auxiliary device for producing ready-mixed mortar according to claim 1, characterized in that: the conveying and crushing bin is fixedly provided with a rear covering plate, the conveying bin is rotatably provided with a front covering plate upper part, the conveying and crushing bin is slidably provided with a front covering plate lower part, and the front covering plate upper part is rotatably connected with the front covering plate lower part.
4. The crushing auxiliary device for producing ready-mixed mortar according to claim 3, characterized in that: the size of the upper half part of the rear covering plate is the same as that of the upper part of the front covering plate, and the size of the lower half part of the rear covering plate is the same as that of the lower part of the front covering plate.
5. The crushing auxiliary device for producing ready-mixed mortar according to claim 1, characterized in that: crushing storehouse rotating assembly includes the upset motor, and upset motor fixed mounting is in the frame, and big belt pulley fixed mounting of input is on the output shaft of upset motor, and big belt pulley fixed mounting of output is carried and is smashed the storehouse on, and the upset belt is connected on big belt pulley of input and the big belt pulley of output.
6. The crushing auxiliary device for producing ready-mixed mortar according to claim 1, characterized in that: crushing roller rotating assembly includes crushing motor, and crushing motor fixed mounting is on carrying crushing storehouse, and input belt lace wheel fixed mounting is on crushing motor's output shaft, and output belt lace wheel fixed mounting is on the connecting rod, and input belt lace wheel passes through crushing belt with output belt lace wheel to be connected, compresses tightly the gyro wheel and rotates to be installed on carrying crushing storehouse, and it compresses tightly on the surface of crushing belt to compress tightly the gyro wheel.
7. The crushing auxiliary device for producing ready-mixed mortar according to claim 1, characterized in that: the feeding switching assembly comprises a switching motor, the switching motor is fixedly mounted on the rack, a pinion is fixedly mounted on an output shaft of the switching motor, the switching feeding plate is rotatably mounted on the conveying bin, a gearwheel is fixedly mounted on the switching feeding plate, and the gearwheel and the pinion form gear fit.
8. The crushing auxiliary device for producing ready-mixed mortar according to claim 3, characterized in that: the baffle plate assembly comprises a chute frame, the chute frame is fixedly installed on the lower portion of the front cover plate, the swing frame is rotatably installed on the conveying and crushing bin, the swing frame is connected with the chute frame in a sliding mode, the pressing sheet is fixedly installed on the swing frame, and the discharging plate is rotatably installed on the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111040794.0A CN113477371B (en) | 2021-09-07 | 2021-09-07 | Production of ready-mixed mortar is with smashing auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111040794.0A CN113477371B (en) | 2021-09-07 | 2021-09-07 | Production of ready-mixed mortar is with smashing auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN113477371A true CN113477371A (en) | 2021-10-08 |
| CN113477371B CN113477371B (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111040794.0A Active CN113477371B (en) | 2021-09-07 | 2021-09-07 | Production of ready-mixed mortar is with smashing auxiliary device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB221447A (en) * | 1924-04-16 | 1924-09-11 | W H Baxter Ltd | Improvements in or relating to machinery for granulating, crushing and screening stone, ore and like materials |
| GB317208A (en) * | 1928-07-24 | 1929-08-15 | Pennsylvania Crusher Co | Improvements in rotary hammer mills and crushers |
| CN209156003U (en) * | 2018-11-08 | 2019-07-26 | 烟台特林矿山冶炼技术有限公司 | It is a kind of be classified, grind, sizing mixing, conveying integrated machine |
| CN211887351U (en) * | 2020-03-27 | 2020-11-10 | 浙江天地环境建设有限公司 | Movable crusher for landscaping |
| CN112058402A (en) * | 2020-09-22 | 2020-12-11 | 张秋月 | Cement manufacture breaker |
| CN112058463A (en) * | 2020-09-22 | 2020-12-11 | 汉中尧柏磊金节能环保建材有限公司 | Concrete clout recovery processing system |
-
2021
- 2021-09-07 CN CN202111040794.0A patent/CN113477371B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB221447A (en) * | 1924-04-16 | 1924-09-11 | W H Baxter Ltd | Improvements in or relating to machinery for granulating, crushing and screening stone, ore and like materials |
| GB317208A (en) * | 1928-07-24 | 1929-08-15 | Pennsylvania Crusher Co | Improvements in rotary hammer mills and crushers |
| CN209156003U (en) * | 2018-11-08 | 2019-07-26 | 烟台特林矿山冶炼技术有限公司 | It is a kind of be classified, grind, sizing mixing, conveying integrated machine |
| CN211887351U (en) * | 2020-03-27 | 2020-11-10 | 浙江天地环境建设有限公司 | Movable crusher for landscaping |
| CN112058402A (en) * | 2020-09-22 | 2020-12-11 | 张秋月 | Cement manufacture breaker |
| CN112058463A (en) * | 2020-09-22 | 2020-12-11 | 汉中尧柏磊金节能环保建材有限公司 | Concrete clout recovery processing system |
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| CN113477371B (en) | 2021-11-16 |
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