CN117022969B - Sand and stone finished product bin feeding device and control method - Google Patents
Sand and stone finished product bin feeding device and control method Download PDFInfo
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- CN117022969B CN117022969B CN202311247878.0A CN202311247878A CN117022969B CN 117022969 B CN117022969 B CN 117022969B CN 202311247878 A CN202311247878 A CN 202311247878A CN 117022969 B CN117022969 B CN 117022969B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000004576 sand Substances 0.000 title claims abstract description 25
- 239000004575 stone Substances 0.000 title abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 77
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000004567 concrete Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 4
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
- B65G1/137—Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed
- B65G1/1373—Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed for fulfilling orders in warehouses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to the technical field of concrete production, in particular to a sand and stone finished product bin feeding device and a control method. The finished sand and stone materials are buffered in different buffer storage bins according to the specifications, the time-sharing and sectional discharging of the materials with different specifications is realized by controlling the discharging, then the materials are conveyed to a raw material stacking area through a bucket elevator and a belt conveyor C, and the materials with different specifications are fed to the corresponding finished storage bins in a time-sharing and sectional manner by controlling the feeding in the raw material stacking area. The feeding device is compact in structure, reduces occupied area and equipment cost, realizes dust and noise control through reasonable equipment arrangement, is beneficial to environmental protection, and realizes sharing of the belt conveyor C by time-sharing and sectional feeding of the finished product bin through time-sharing and sectional discharging of the buffer bin through reasonable process regulation and control, so that equipment investment is reduced through process regulation and control while material conveying is ensured, and production cost of enterprises is effectively reduced.
Description
Technical Field
The invention relates to the technical field of concrete production, in particular to a sand and stone finished product bin feeding device and a control method.
Background
The sand and stone materials are needed to be used in the concrete production process, the sand and stone materials with different specifications are needed to be used in the concrete production process according to actual needs, in actual production, each grade of sand and stone materials are prepared through working sections such as crushing, screening and washing, the prepared sand and stone materials can be cached through a cache storage bin, then the prepared sand and stone materials can be transported to a finished product storage bin of a raw material stacking area through the transportation of a plurality of columns to be stacked, and the stacked raw materials in the finished product storage bin are convenient and fast to take.
The existing transport to the grit material of all grades, usually every specification sand material all corresponds a band conveyer, then in order to carry the grit material of multiple specification in-process, then need to be equipped with many band conveyers, this band conveyer is owing to the conveying distance is long, and in-process not only manufacturing cost is very high, and the while energy consumption is high, arranges the installation difficulty, and the space occupation of great increase equipment, installation and use cost are inconvenient for the reduction of enterprise's manufacturing cost.
Therefore, in the actual production and transportation process of the sand and stone materials, through reasonable spatial arrangement and scientific and effective process control, the installation and use cost of equipment can be effectively reduced, and the finished product bin feeding device and the control method for effectively reducing the production cost of enterprises are the problems to be solved in the prior art.
Disclosure of Invention
The invention aims to provide a sand and stone finished product bin feeding device and a control method, which are used for solving the problems of large equipment occupation area, multiple equipment arrangement, and high factory occupation cost and equipment use, installation and maintenance cost in the conventional conveying process of a raw material stacking area of a finished product sand and stone bin.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a grit finished product feed bin feedway, including the buffer memory feed bin, the buffer memory feed bin sets up in raw materials production area and has arranged a plurality ofly, each buffer memory feed bin timesharing segmentation ejection of compact, be provided with bucket elevator in the below of buffer memory feed bin, bucket elevator discharge end cooperatees with belt feeder C, belt feeder C has and only has one, belt feeder C goes to raw materials and stacks the district, a plurality of finished product feed bins have been arranged in the raw materials and have been stacked the district, finished product feed bin and buffer memory feed bin one-to-one, install plow discharger on the belt feeder C, belt feeder C passes through plow discharger to each finished product feed bin timesharing segmentation feeding.
Further, the discharge gate of buffering feed bin arrange in the pit, arrange below the discharge gate and install belt feeder A, belt feeder A has arranged one or more, every belt feeder A corresponds one or more buffering feed bins, belt feeder A's discharge end carries out the feed to belt feeder B, belt feeder B's discharge end carries out the feed to the feed end of bucket elevator.
Further, a weight type material level gauge is arranged above the buffering storage bin, and an electro-hydraulic sector discharge gate is arranged at a discharge hole of the buffering storage bin.
Further, the belt conveyor C is arranged above the finished product bin through a steel structure bracket, and the belt conveyor D is arranged below the plow discharger and feeds the corresponding finished product bin.
Further, the tail discharge end of the belt conveyor C is directly matched with the belt conveyor D.
The sand finished product bin feeding control method is characterized by comprising the following steps of:
s1, respectively connecting a weight type material level gauge, an electrohydraulic fan-shaped discharge gate, a belt conveyor A, a belt conveyor B, a bucket elevator, a belt conveyor C, a plow discharger and a belt conveyor D into a PLC control system;
s2, opening an electrohydraulic fan-shaped discharge gate at a discharge port of a corresponding buffer storage bin according to a material level signal detected by a weight type material level meter, starting a belt conveyor A corresponding to the discharge port, and conveying materials to a belt conveyor B;
S3, the belt conveyor B, the bucket elevator and the belt conveyor C are kept normally open, and materials are conveyed to a raw material stacking area;
S4, a plow discharger above a finished product bin corresponding to the specification of the cache bin in the S2 acts, and a corresponding belt conveyor D is started to convey materials to the corresponding finished product bin;
s5, detecting that the materials in the cache bin in the S2 are lower than a set value by a weight type material level meter, closing a corresponding electrohydraulic fan-shaped discharge gate, and closing a belt conveyor A after a certain time delay;
s6, opening an electrohydraulic fan-shaped discharge gate at a discharge port of a corresponding buffer storage bin according to a material level signal detected by a weight type material level meter, starting a belt conveyor A corresponding to the discharge port, and conveying materials to a belt conveyor B;
s7, repeating the step S3, after the plow discharger and the belt conveyor D have the same delay time as in the step S5, returning the plow discharger to the original position, closing the belt conveyor D, then enabling the plow discharger above the finished product bin corresponding to the specification of the cache bin in the step S6 to act, and simultaneously enabling the corresponding belt conveyor D to start so as to convey the material to the corresponding finished product bin;
S8, repeating the steps S5-S7 to realize the feeding circulation.
Further, in the step S2 and the step S6, the electrohydraulic fan-shaped discharge gate at the discharge port of the caching bin with the largest material quantity is preferentially opened.
Further, in S5-S6, if the subsequent cache bin and the previous cache bin share one belt conveyor a, the belt conveyor a is not closed, otherwise, the belt conveyor a is closed.
Further, in the steps S5 and S7, the delay time is required to be reasonably adjusted according to the actual running condition, so that no residual materials are ensured on the belt conveyor A, and the boundaries among the materials with various specifications in the follow-up conveying are clear.
Further, in S4 and S7, if the material is conveyed to the product bin at the discharging end of the tail of the belt conveyor C, only the corresponding belt conveyor D is started.
The invention has the beneficial effects that:
1. The time-sharing and sectional output of the materials with different levels in the cache bin is realized, and then the corresponding time-sharing and sectional input of the materials with different levels is realized in the raw material stacking area, so that the operation efficiency of each device is improved in the process, the idle rate of the device is reduced, the purchase, installation, use and maintenance costs of the device are effectively reduced, and the positive effects of improving the production efficiency and reducing the production cost are realized;
2. the discharge gate that caches the feed bin is located the ground below, can effectually stop the raise dust, can alleviate the noise simultaneously, has important meaning to the protection of environment.
Drawings
FIG. 1 is a schematic diagram of a material transfer front view of a buffer bin in a raw material production area of the present invention;
FIG. 2 is a schematic diagram of a material transfer overhead view of a buffer bin in a raw material production area of the present invention;
FIG. 3 is a schematic front view of the material stacking area of the present invention feeding a finished product bin;
FIG. 4 is a schematic front view of the plow discharger on the belt conveyor C of the present invention;
FIG. 5 is a schematic diagram of the feeding flow of the invention to the finished product bin in the raw material stacking area.
Name corresponding to each label in the figure:
1. Hardening the ground; 2. a pit; 3. a lifting groove; 4. caching a storage bin; 41. a feed inlet; 42. a discharge port; 43. a weight type level gauge; 44. electrohydraulic fan-shaped discharge gate; 5. a belt machine A; 6. a belt conveyor B; 7. bucket elevator; 8. a belt conveyor C; 81. plow discharger; 9. a belt conveyor D; 10. a finished product bin; 101. a steel structure bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 5, a pit 2 is constructed in a raw material production area, a hardened ground 1 of reinforced concrete is laid on the pit 2, and a buffer bin 4 is arranged and installed on the ground 1, wherein the buffer bin 4 has six kinds for storing sand and stones of different specifications, respectively.
A feed inlet 41 is arranged on the cache storage bin 4, a discharge outlet 42 is arranged below the cache storage bin 4, the discharge outlet 42 extends downwards into the pit 2, a weight type material level gauge 43 is arranged on the cache storage bin 4, and an electro-hydraulic sector discharge gate 44 is arranged at the discharge outlet 42.
The lower part of the discharge hole 42 of the buffer storage bin 4 is provided with two belt conveyors A5, the two belt conveyors A5 are symmetrically arranged according to the position of the buffer storage bin 4, the lower part of the junction of the two belt conveyors A5 is provided with a belt conveyor B6, the lower part of the output end of the belt conveyor B6 is provided with a lifting groove 3, the lifting groove 3 is provided with a bucket elevator 7, and the discharge part of the bucket elevator 7 is provided with a belt conveyor C8.
The belt conveyor C8 is led to a raw material stacking area, a finished product bin 10 is arranged in the raw material stacking area, a steel structure support 101 is arranged on the finished product bin 10, the belt conveyor C8 is supported and fixed through the steel structure support 101, a plow discharger 81 is arranged and installed on the belt conveyor C8, a belt conveyor D9 is arranged below the plow discharger 81, and the belt conveyor D9 conveys materials of various specifications into the corresponding finished product bin 10.
The principle of the invention is as follows:
The sandstone finished products from the crushing, screening and washing working sections are stored in the buffer storage bin 4 in a classified manner, the buffer storage bin 4 is provided with a plurality of sandstone materials in the process, the sandstone finished products can be used for storing sandstone materials of different specifications in a classified manner, and then the buffered sandstone materials are transported to the finished product bin 10 for stacking through a series of transportation.
In the process, the weight type material level meter 43 can be used for measuring the material quantity in each cache bin 4 and transmitting the measurement result to the PLC control system, the PLC control system opens the electrohydraulic fan-shaped discharge gate 44 at the bottom of each cache bin 4 according to the material quantity in each cache bin 4, the electrohydraulic fan-shaped discharge gate 44 at the bottom of the cache bin 4 with the largest material quantity is preferentially opened in the process, then the material in the corresponding cache bin 4 can fall onto the belt conveyor A5, the material in the cache bin 4 is continuously reduced at the moment, the weight type material level meter 43 can be used for measuring the material quantity at intervals in the whole process, and when the material quantity is lower than a set value, the electrohydraulic fan-shaped discharge gate 44 is closed, and the cache bin 4 stops discharging and is switched to the cache bin 4 with another specification for discharging.
When the sandstone materials with different specifications are switched, the electrohydraulic fan-shaped discharge gate 44 at the bottom of the rear buffer storage bin 4 needs to be delayed for a certain time and then opened, and the time delay in actual production is 30-60 s, so that on one hand, obvious distinguishing intervals are reserved between the sandstone materials with different grades, on the other hand, the equipment is prevented from idling for a long time, and the energy consumption is effectively controlled.
Sand and stone material that comes out from buffering feed bin 4 carries to belt feeder B6 through belt feeder A5, then carry to bucket elevator 7 department, promote through bucket elevator 7, then transport to the raw materials through belt feeder C8 and stack the district, the reasonable factory building of in-process arranges for on the one hand reduced the area cost of factory building, on the other hand also controlled raise dust and noise, help the protection of environment, and through this kind of time-sharing sectional transportation mode, realized the sharing of belt feeder C8, can realize carrying different level materials through a belt feeder C8, effectual reduction equipment and use, maintenance cost thereof.
The plow discharger 81 is arranged on the belt conveyor C8 to realize the time-sharing and sectional output of the finished product raw materials, the plow discharger 81 corresponds to the buffer storage bin 4 in the process, for example, when the buffer storage bin A is started, the plow discharger 81 above the finished product bin A acts and cuts off the materials on the belt conveyor C8, so that the materials discharged from the buffer storage bin 4 can be completely conveyed into the finished product bin A, and the like are pushed, the classified storage of the materials of different grades can be realized, and in the process, attention is paid to the fact that the plow discharger 81 is not required to be arranged at the tail part of the belt conveyor C8, namely, the number of the plow discharger 81 is one less than that of the finished product bin 10, and meanwhile, in the process of switching the raw materials of various grades, a small amount of sand and stone materials of different grades can be inevitably generated, but for hundreds of thousands of tons of sand and stone raw materials, the small amount of sand and stone materials can be ignored, and the concrete production cannot be influenced.
The weight type level gauge 43 is an intermittent measurement type level gauge in the process, the electrohydraulic fan-shaped discharge gate 44 is an electrohydraulic type gate, the bucket elevator 7, the plow discharger 81 and each belt conveyor are widely used in the field of concrete production, are of the existing mature technology, the structure, principle and use mode of the weight type level gauge are not repeated here, meanwhile, the PLC control system is simple PLC control, is of the existing mature technology, and is not repeated for the person skilled in the art.
The invention is environment-friendly and has obvious economic benefit, the structural design of the pit 2 is adopted in the process, on one hand, the dust emission during sand and stone discharging can be effectively reduced, the environment is protected, meanwhile, the noise in the production process is controlled to a certain extent, in addition, the buffer storage bin 4 is used for conveying the finished product to the storage bin, only one main belt conveyor C8 is needed in the process, so that the equipment cost can be greatly reduced in the process, the energy consumption can be effectively reduced, and compared with the existing arrangement mode, the energy consumption is reduced by about 500-1000 kw, about half of the energy consumption is reduced, and the invention plays a positive role in reducing the production cost.
The present application is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present application can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present application fall within the scope of the present application.
Claims (4)
1. The sand finished product bin feeding control method is characterized by comprising the following steps of:
s1, arranging a plurality of cache bins (4) in a raw material production area, arranging a plurality of finished product bins (10) in a raw material stacking area, wherein the finished product bins (10) are in one-to-one correspondence with the cache bins (4);
a heavy hammer type material level indicator (43) is arranged above the cache bin (4), and an electro-hydraulic sector discharge gate (44) is arranged at a discharge hole (42) of the cache bin (4);
A discharge hole (42) of the buffer bin (4) is arranged in the pit (2), a belt conveyor A (5) is arranged below the discharge hole (42), one or more belt conveyors A (5) are arranged, each belt conveyor A (5) corresponds to one or more buffer bins (4), a discharge end of the belt conveyor A (5) feeds a belt conveyor B (6), and a discharge end of the belt conveyor B (6) feeds a feed end of the bucket elevator (7); the discharging end of the bucket elevator (7) is matched with a belt conveyor C (8), one belt conveyor C (8) is arranged, and the belt conveyor C (8) goes to a raw material stacking area;
A plow discharger (81) is arranged on the belt conveyor C (8), a belt conveyor D (9) is arranged below the plow discharger (81), the belt conveyor D (9) feeds corresponding finished product bins (10), and the tail discharge end of the belt conveyor C (8) is directly matched with the belt conveyor D (9);
Respectively connecting a weight type material level gauge (43), an electrohydraulic fan-shaped discharge gate (44), a belt conveyor A (5), a belt conveyor B (6), a bucket elevator (7), a belt conveyor C (8), a plow discharger (81) and a belt conveyor D (9) into a PLC control system;
s2, opening an electrohydraulic fan-shaped discharge gate (44) at a discharge port (42) of a corresponding buffer storage bin (4) according to a material level signal detected by a weight type material level meter (43), starting a belt conveyor A (5) corresponding to the discharge port (42), and conveying materials to a belt conveyor B (6);
the electrohydraulic fan-shaped discharge gate (44) at the discharge port (42) of the buffer bin (4) with the largest material quantity is preferentially opened;
s3, the belt conveyor B (6), the bucket elevator (7) and the belt conveyor C (8) are kept normally open, and materials are conveyed to a raw material stacking area;
S4, a plow discharger (81) above a finished product bin (10) corresponding to the specification of the cache bin (4) in the S2 acts, and a corresponding belt conveyor D (9) is started to convey materials to the corresponding finished product bin (10);
s5, detecting that the materials in the cache bin (4) in the S2 are lower than a set value by a weight type material level meter (43), closing a corresponding electrohydraulic fan-shaped discharge gate (44), and closing a belt conveyor A (5) after a certain time delay;
S6, opening an electrohydraulic fan-shaped discharge gate (44) at a discharge port (42) of a corresponding buffer storage bin (4) according to a material level signal detected by a weight type material level meter (43), starting a belt conveyor A (5) corresponding to the discharge port (42), and conveying materials to a belt conveyor B (6);
the electrohydraulic fan-shaped discharge gate (44) at the discharge port (42) of the buffer bin (4) with the largest material quantity is preferentially opened;
S7, repeating the step S3, after the plow discharger (81) and the belt conveyor D (9) have the same delay time as in the step S5, returning the plow discharger (81) to the original position, closing the belt conveyor D (9), then acting the plow discharger (81) above the finished product bin (10) corresponding to the specification of the cache bin (4) in the step S6, and simultaneously starting the corresponding belt conveyor D (9) to convey the material to the corresponding finished product bin (10);
S8, repeating the steps S5-S7 to realize the feeding circulation.
2. The sand finished product bin feeding control method according to claim 1, wherein: in the steps S5-S6, if the latter cache bin (4) and the former cache bin (4) share one belt conveyor A (5), the belt conveyor A (5) is not closed, and otherwise, the belt conveyor A (5) is closed.
3. The sand finished product bin feeding control method according to claim 1, wherein: in the steps S5 and S7, the delay time is required to be reasonably adjusted according to the actual running condition, so that no residual materials are ensured on the belt conveyor A (5), and the boundaries among the materials with various specifications in the follow-up conveying are clear.
4. The sand finished product bin feeding control method according to claim 1, wherein: in the steps S4 and S7, if the materials are conveyed to a finished product bin (10) at the tail discharge end of the belt conveyor C (8), only the corresponding belt conveyor D (9) is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311247878.0A CN117022969B (en) | 2023-09-26 | 2023-09-26 | Sand and stone finished product bin feeding device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311247878.0A CN117022969B (en) | 2023-09-26 | 2023-09-26 | Sand and stone finished product bin feeding device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117022969A CN117022969A (en) | 2023-11-10 |
| CN117022969B true CN117022969B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311247878.0A Active CN117022969B (en) | 2023-09-26 | 2023-09-26 | Sand and stone finished product bin feeding device and control method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741144A (en) * | 1993-06-15 | 1995-02-10 | Ishikawajima Constr Mach Co | Method and apparatus for controlling transport by conveyer |
| CN203903493U (en) * | 2014-05-28 | 2014-10-29 | 扬州市华翔有色金属有限公司 | Automatic feeding device |
| CN105643807A (en) * | 2014-11-12 | 2016-06-08 | 新疆宇鑫混凝土有限公司 | Preparation system and method for high-performance concrete |
| CN207827412U (en) * | 2017-12-28 | 2018-09-07 | 山东金岭矿业股份有限公司 | More ore storage bin automatic discharging systems |
| CN208867357U (en) * | 2018-06-09 | 2019-05-17 | 中国建筑第七工程局有限公司 | A kind of concrete agitation station sunk type proportioner |
| CN210410582U (en) * | 2019-07-30 | 2020-04-28 | 廊坊德基机械科技有限公司 | Automatic stacking and batching system |
| CN112318728A (en) * | 2020-11-20 | 2021-02-05 | 河南三硕智能科技有限公司 | Concrete intelligent production and management system and concrete mixing plant |
-
2023
- 2023-09-26 CN CN202311247878.0A patent/CN117022969B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741144A (en) * | 1993-06-15 | 1995-02-10 | Ishikawajima Constr Mach Co | Method and apparatus for controlling transport by conveyer |
| CN203903493U (en) * | 2014-05-28 | 2014-10-29 | 扬州市华翔有色金属有限公司 | Automatic feeding device |
| CN105643807A (en) * | 2014-11-12 | 2016-06-08 | 新疆宇鑫混凝土有限公司 | Preparation system and method for high-performance concrete |
| CN207827412U (en) * | 2017-12-28 | 2018-09-07 | 山东金岭矿业股份有限公司 | More ore storage bin automatic discharging systems |
| CN208867357U (en) * | 2018-06-09 | 2019-05-17 | 中国建筑第七工程局有限公司 | A kind of concrete agitation station sunk type proportioner |
| CN210410582U (en) * | 2019-07-30 | 2020-04-28 | 廊坊德基机械科技有限公司 | Automatic stacking and batching system |
| CN112318728A (en) * | 2020-11-20 | 2021-02-05 | 河南三硕智能科技有限公司 | Concrete intelligent production and management system and concrete mixing plant |
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|---|---|
| CN117022969A (en) | 2023-11-10 |
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