CN112710817A - Test system for indoor building sand circulating batching and sand water content test method - Google Patents
Test system for indoor building sand circulating batching and sand water content test method Download PDFInfo
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- CN112710817A CN112710817A CN202011509776.8A CN202011509776A CN112710817A CN 112710817 A CN112710817 A CN 112710817A CN 202011509776 A CN202011509776 A CN 202011509776A CN 112710817 A CN112710817 A CN 112710817A
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- 239000004576 sand Substances 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000010998 test method Methods 0.000 title abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007655 standard test method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 230000005571 horizontal transmission Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a test system for indoor building sand circulation batching and a sand water content test method. The bottom of the aggregate bin is provided with a discharge baffle; the conveying line body is used for conveying materials upwards in an inclined mode, and the lower end of the conveying line body is located below the material collecting hopper; the moving frame is located on one side of the upper end of the conveying line body and can move to the area where the collecting hopper is located, a driving mechanism capable of driving the blanking hopper to move up and down relative to the moving frame is arranged on the moving frame, and a blanking valve is arranged at the bottom of the blanking hopper. The test system is used for simulating the real batching scene of the concrete production line, providing a test environment for the sensor and facilitating the acquisition of dynamic measurement data of the sensor.
Description
Technical Field
The invention relates to the technical field of testing of concrete ingredients, in particular to a test system for circulating ingredients of sand for indoor buildings.
Background
In recent years, under the promotion of the nation and governments at all levels, the premixed concrete industry in China is rapidly developed, and the premixed concrete is the country with the largest global premixed concrete usage. However, the concrete industry in China still has the defects of low overall technical content and low intelligent degree. In order to promote the development of the concrete industry to intelligent manufacturing, different types of sensors are required to be adopted to guide and monitor the production process of the concrete industry in a digital, networked and intelligent manner. For example, in the batching process of concrete, the performance characterization of various raw materials has a great influence on the performance of concrete, so that the performance of each raw material of concrete needs to be monitored in real time, data is collected and analyzed, and then production is guided, so as to realize intelligent production of concrete.
The intelligent manufacturing of concrete production needs to rely on different types of sensors to collect data, and most of measurement is carried out under the condition of being separated from the actual production environment in the traditional test environment, so that the difference between the measured data and the actual data of the actual production environment is large, the measurement result is difficult to represent, and the measurement distortion of the sensors is caused. Therefore, measurement of the properties of various concrete raw materials requires that the sensors perform tests of the working properties in the actual production environment. However, the actual production environment of concrete is complex, which is often not conducive to performance development tests of various types of sensors and devices and observation and analysis of test results, and therefore, an indoor concrete circulating batching test system is required to simulate the real batching environment of a concrete production line, so as to perform simulation tests on various types of sensors and observe test results more intuitively, and analyze details of the results. And (4) carrying out precision adjustment on the sensor according to the test result so as to achieve the optimal working state.
The concrete batching process mainly comprises two stages of feeding and batching and weighing, wherein the feeding stage is a stage of conveying materials such as sand, stones and the like from a material pile to a storage hopper of a mixing plant by a conveying belt, and the batching and weighing stage is a stage of dropping a collecting hopper to a weighing platform through a hopper valve. The detection of the raw material performance by the sensor is mainly carried out in the two stages, so the invention provides a test platform for various sensors aiming at the two processes.
Disclosure of Invention
In view of this, an object of the present invention is to provide a testing system for circulating proportioning of sand for indoor building, which is applied to simulate a real proportioning situation of a concrete production line, provide a testing environment for a sensor, and facilitate obtaining dynamic measurement data of the sensor.
The invention also aims to provide a method for testing the water content of the sand by using the test system for the indoor building sand circulating batching.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a test system of sand circulation batching for indoor building, it includes:
the bottom of the collecting hopper is provided with a discharging baffle;
the conveying line body is used for conveying materials upwards in an inclined mode, and the lower end of the conveying line body is located below the material collecting hopper;
the moving frame is located on one side of the upper end of the conveying line body and can move to the area where the collecting hopper is located, the moving frame is provided with a blanking hopper and a driving mechanism capable of driving the blanking hopper to move up and down relative to the moving frame, and a blanking valve is arranged at the bottom of the blanking hopper.
In a preferred scheme of the invention, the collecting hopper is connected with a fixed bracket for supporting the collecting hopper.
In a preferred embodiment of the present invention, the conveyor line body includes a conveying support and a transmission belt disposed on the conveying support, a plurality of baffles are disposed on the transmission belt at intervals, and a groove for accommodating sand is formed between every two baffles.
In a preferred scheme of the invention, the bottom of the moving frame is provided with a roller, and the roller is provided with a locking device capable of locking the roller.
In a preferred embodiment of the present invention, the rollers are universal wheels.
In a preferred scheme of the invention, the driving mechanism comprises a motor arranged on the moving frame, at least two groups of ball screw nut pairs and a transmission mechanism, each group of ball screw nut pair comprises a ball nut and a vertical screw rod, all the ball nuts are connected with the blanking hopper, and the motor is connected with all the vertical screw rods through the transmission mechanism so as to drive all the vertical screw rods to synchronously rotate.
In a preferred embodiment of the invention, the transmission mechanism comprises a transfer case connected to the output of the electric motor, the transfer case having at least two outputs, each output of the transfer case being connected to a vertical spindle by means of a transverse transmission shaft and a coupling.
The method for testing the water content of the sand applies the test system for the circulating proportioning of the sand for the indoor building, and comprises the following steps of:
A. filling sand into a collecting hopper;
B. the unloading baffle plate under the aggregate bin is drawn out, so that the sand in the aggregate bin falls into the lower end of the conveyor line body;
C. the conveying line body is started, sand is conveyed towards the upper end of the conveying line body, and the sand falls into a blanking hopper from the upper end of the conveying line body;
D. the driving mechanism is started to drive the blanking hopper to ascend, then the moving frame is moved to enable the blanking hopper to move to the position right above the aggregate hopper, then the blanking valve is opened, and sand falls into the aggregate hopper from the blanking hopper;
E. in the process of falling of the sand, a monitoring probe of the sand moisture content on-line monitoring sensor is placed between a falling hopper and a collecting hopper, the monitoring probe is contacted with the falling sand, data related to the moisture content is measured, and the data are transmitted to a computer.
In a preferred embodiment of the present invention, after step E is completed, the following steps are performed:
F. taking sand in a collecting hopper, and measuring the water content of the sand by adopting a method recorded in JGJ 52-2006-quality and inspection method standard for sand and stone for common concrete;
G. comparing the water content measured in the step E with the water content measured in the step F, then adjusting parameters of the sensor, and performing secondary fitting calibration on the parameters of the sensor; the measurement precision of the sensor is improved;
H. and D, repeating the steps A to E, and measuring the water content of the sand by using the sand water content on-line monitoring sensor again.
The invention has the beneficial effects that: the test system for the indoor building sand circulation batching, provided by the invention, can simulate the real batching scene of a concrete production line, provides a test environment for the sensor, and is convenient for acquiring the dynamic measurement data of the sensor and adjusting the sensor so as to improve the measurement precision of the sensor.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of the loading stage of the present invention;
FIG. 3 is a schematic diagram of the construction of the drop hopper lifting stage of the present invention;
fig. 4 is a schematic diagram of the blanking stage of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.
Referring to fig. 1 to 4, the invention provides a testing system for indoor building sand circulation batching, which comprises a collecting hopper 10, a conveying line body 9, a moving frame 13 and a blanking hopper 8 arranged on the moving frame 13.
The bottom of the aggregate bin 10 is provided with a discharge baffle 11; the conveying line body 9 is used for conveying materials obliquely upwards, and the lower end of the conveying line body 9 is positioned below the aggregate bin 10; the moving frame 13 is positioned on one side of the upper end of the conveyor line body 9 and can move to the area of the collecting hopper 10, a driving mechanism capable of driving the blanking hopper 8 to move up and down relative to the moving frame 13 is arranged on the moving frame 13, and a blanking valve is arranged at the bottom of the blanking hopper 8.
The method for testing the water content of the sand by applying the test system comprises the following steps:
A. the aggregate bin 10 is filled with sand.
B. The discharge baffle 11 under the collection hopper 10 is withdrawn, so that the sand in the collection hopper 10 falls into the lower end of the conveyor line body 9. The process simulates the ingredient weighing stage of actual production.
C. The conveyor line body 9 is started to convey the sand towards the upper end of the conveyor line body 9, so that the sand falls into the blanking hopper 8 from the upper end of the conveyor line body 9. The process simulates the process of transporting sand from the ground to the high of a batching building by a conveyor belt when actually producing concrete batching.
D. The driving mechanism is started to drive the blanking hopper 8 to ascend, then the moving frame 13 is moved to enable the blanking hopper 8 to move to the position right above the aggregate hopper 10, then the blanking valve is opened, and sand falls into the aggregate hopper 10 from the blanking hopper 8.
E. During the falling of the sand, a monitoring probe 14 of the on-line monitoring sensor for the water content of the sand is placed between the falling hopper 8 and the collecting hopper 10, the monitoring probe 14 is contacted with the falling sand, data related to the water content, such as the water content of the sand and the function relation of the water content of the sand and the time, is measured, and the data is transmitted to the computer.
As a further improvement of the test method, after the step E is completed, the following steps are performed:
F. the water content of the sand in the collecting hopper 10 is measured by a method recorded in JGJ 52-2006-Standard test method for the quality of the sand and the stone for ordinary concrete.
G. And D, comparing the water content measured in the step E with the water content measured in the step F, then adjusting parameters of the sensor, and performing secondary fitting calibration on the parameters of the sensor to improve the measurement accuracy of the sensor.
H. And D, repeating the steps A to E, and measuring the water content of the sand by using the sand water content on-line monitoring sensor again.
In the testing method, the online monitoring sensor for the water content of the sand can be integrated in the testing system, the measurement precision of the sensor can be detected through dynamic monitoring, and the parameters of the sensor can be adjusted according to the monitoring result.
In the invention, the bottom of the moving frame 13 is provided with a roller 7, and the roller 7 is provided with a locking device capable of locking the roller. The locking device can adopt a common roller 7 lock, when the unlocking device is unlocked, the movable frame 13 can be pushed to move, and when the locking device is locked, the position of the movable frame 13 is fixed. Preferably, the roller 7 is a universal wheel, and can be steered freely.
In a preferred embodiment of the present invention, the aggregate bin 10 is a double-bin aggregate bin 10, the aggregate bin 10 has two bins, and a discharge baffle 11 is disposed below each of the two bins. Two feed bins can be used for depositing two kinds of materials respectively, can lift one of them material alone as required and test.
The conveyor body 9 includes a conveyor frame 901 and a belt 902 provided on the conveyor frame 901. The conveyer belt is driven by motor 1, can select for use the conveyer belt of different grade type according to the difference of material. For example, when the material is sand, the material is preferably conveyed by using a conveyor belt with baffles 903, and a groove for accommodating the sand is formed between every two baffles 903, so that the sand can be smoothly conveyed upwards along the conveyor line body 9.
Referring to fig. 1, the driving mechanism includes a motor 1 disposed on the moving frame 13, at least two sets of ball screw nut pairs, and a transmission mechanism, each set of ball screw nut pair includes a ball nut 6 and a vertical screw 5, all the ball nuts 6 are connected with the blanking hopper 8, and the motor 1 is connected with all the vertical screws 5 through the transmission mechanism to drive all the vertical screws 5 to rotate synchronously. The ball screw nut pairs are preferably four in number, and by adopting such a mechanism, the respective screws can be synchronously rotated to drive the blanking hopper 8 to stably ascend and descend.
In a preferred embodiment of the present invention, the transmission mechanism includes a transfer case 2 connected to the output end of the motor 1, the transfer case 2 has two output ends, each output end of the transfer case 2 is connected to a vertical screw 5 through a horizontal transmission shaft 3 and a coupling 4, the coupling 4 can also be connected to other transmission shafts 3, and the transmission shafts are connected to the other vertical screws 5 through the coupling 4. By adopting the transmission structure, the structure is simple and practical, and the occupied space is small.
In some aspects of the present invention, the above-mentioned transmission mechanism may also adopt a timing belt mechanism or the like as a backup.
To provide support for the collection hopper 10, a fixed support for supporting the collection hopper 10 is attached to the collection hopper 10.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a test system of indoor building sand circulation batching which characterized in that, it includes:
the device comprises a collecting hopper (10), wherein a discharging baffle (11) is arranged at the bottom of the collecting hopper (10);
the conveying line body (9) is used for conveying materials upwards in an inclined mode, and the lower end of the conveying line body (9) is located below the aggregate bin (10);
the moving frame (13) is located on one side where the upper end of the conveying line body (9) is located and can move to the area where the collecting hopper (10) is located, a blanking hopper (8) and a driving mechanism capable of driving the blanking hopper (8) to move up and down relative to the moving frame (13) are arranged on the moving frame (13), and a blanking valve is arranged at the bottom of the blanking hopper (8).
2. A test system for indoor building sand circulation batching according to claim 1, characterized in that said collection hopper (10) is connected with a fixed support (12) for supporting collection hopper (10).
3. An indoor building sand circulation batching test system according to claim 1, characterized in that said conveyor line body (9) comprises a conveyor support (901) and a conveyor belt (902) arranged on the conveyor support (901), a plurality of baffles (903) are arranged on the conveyor belt at intervals, and a groove for accommodating sand is formed between every two baffles (903).
4. A test system for indoor building sand circulation batching according to claim 1, characterized in that the bottom of said moving frame (13) is provided with a roller (7), said roller (7) is provided with a locking device capable of locking the roller.
5. A test system for indoor building sand circulation batching according to claim 4, characterized in that said rollers (7) are universal wheels.
6. The indoor building sand circulation batching test system according to claim 1, characterized in that said driving mechanism comprises a motor (1) disposed on said movable frame (13), at least two sets of ball screw nut pairs, and a transmission mechanism, each set of ball screw nut pair comprises a ball nut (6) and a vertical screw (5), all the ball nuts (6) are connected with said blanking hopper (8), and said motor (1) is connected with all the vertical screws (5) through said transmission mechanism to drive all the vertical screws (5) to rotate synchronously.
7. An indoor building sand circulation batching test system according to claim 6, characterized in that said transmission mechanism comprises a transfer case (2) connected to the output of said motor (1), said transfer case (2) having at least two outputs, each output of the transfer case (2) being connected to a vertical screw (5) through a transverse transmission shaft (3), a coupling (4).
8. A method for testing the water content of sand, which is characterized in that the test system of the indoor building sand circulation ingredient of any one of claims 1 to 7 is applied, and comprises the following steps:
A. -charging the collection hopper (10) with sand;
B. the discharging baffle (11) below the aggregate bin (10) is drawn out, so that the sand in the aggregate bin (10) falls into the lower end of the conveyor line body (9);
C. the conveyor line body (9) is started, sand is conveyed towards the upper end of the conveyor line body (9), and the sand falls into the blanking hopper (8) from the upper end of the conveyor line body (9);
D. the driving mechanism is started to drive the blanking hopper (8) to ascend, then the moving frame (13) is moved to enable the blanking hopper (8) to move to the position right above the aggregate hopper (10), then the blanking valve is opened, and sand falls into the aggregate hopper (10) from the blanking hopper (8);
E. during the falling process of the sand, a monitoring probe (14) of the on-line monitoring sensor for the water content of the sand is placed between the falling hopper (8) and the collecting hopper (10), the monitoring probe (14) is contacted with the falling sand, data related to the water content is measured, and the data are transmitted to a computer.
9. The method for testing the water content in the sand according to claim 8, wherein after the step E is completed, the following steps are carried out:
F. taking sand in a collecting hopper (10), and measuring the water content of the sand by adopting a method recorded in JGJ52-2006 standard test method for the quality of sand and stone for common concrete;
G. comparing the water content measured in the step E with the water content measured in the step F, then adjusting parameters of the sensor, and performing secondary fitting calibration on the parameters of the sensor; the measurement precision of the sensor is improved;
H. and D, repeating the steps A to E, and measuring the water content of the sand by using the sand water content on-line monitoring sensor again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011509776.8A CN112710817A (en) | 2020-12-18 | 2020-12-18 | Test system for indoor building sand circulating batching and sand water content test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011509776.8A CN112710817A (en) | 2020-12-18 | 2020-12-18 | Test system for indoor building sand circulating batching and sand water content test method |
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| CN112710817A true CN112710817A (en) | 2021-04-27 |
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| CN201140456Y (en) * | 2007-10-23 | 2008-10-29 | 李斌 | Combined concrete proportioning station |
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