CN114486610A - Online rapid detection system and method for grading analysis of rotational flow type machine-made sand particles - Google Patents
Online rapid detection system and method for grading analysis of rotational flow type machine-made sand particles Download PDFInfo
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- CN114486610A CN114486610A CN202111600182.2A CN202111600182A CN114486610A CN 114486610 A CN114486610 A CN 114486610A CN 202111600182 A CN202111600182 A CN 202111600182A CN 114486610 A CN114486610 A CN 114486610A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
Abstract
The invention relates to the field of weighing equipment, in particular to an online rapid detection system and an online rapid detection method for grading analysis of spiral-flow type machine-made sand particles. The weighing device aims to solve the problems that in the prior art, the weighing device is poor in recognition efficiency and poor in recognition accuracy. The automatic sand material grading and weighing device comprises a blanking control device, a rotary material scattering device, a sand material grading and collecting device, a sand material grading and weighing device and a control system which are arranged in an outer frame, wherein the rotary material scattering device rotates and throws materials at a constant speed after receiving quantitative blanking of the blanking control device so as to realize grading in the sand material grading and weighing device, and finally, quick detection is realized under the cooperation of the control system. Has the advantages that: the pure physical detection mode, the detection result is quantitative data, the quality of the sand material with different grain diameters is equivalent to the grading screen allowance of the national standard square hole sieve with different bore diameters, and the detection result can be utilized to directly draw the grain grading curve of the sand prepared by the preparation machine.
Description
Technical Field
The invention relates to the field of weighing equipment, in particular to an online rapid detection system and a detection method for grading analysis of spiral-flow type machine-made sand particles.
Background
The sand is a main material for producing various concretes, and the building sand is mainly from natural sand such as river sand for a long time. Due to the continuous exploitation, natural sand resources are increasingly deficient, and exploitation of natural sand has brought about a series of environmental problems. Natural sand production is more limited and replacement of natural sand by machine-made sand has become necessary. Because the mining of aggregate mines is not standard and the production process of machine-made sand cannot meet the requirements, the quality of the machine-made sand is often poor and cannot meet the requirements of the building industry. The fine mechanism sand (type I sand) is an ideal solution for replacing natural medium sand, but the production of the fine mechanism sand needs a certain industrial scale support, and the key is the production quality control besides the arrangement of proper mechanical equipment and the advanced process flow. Among them, the on-line quality rapid detection is the first step of the production quality control of the machine-made sand, and is also the most important step.
In the prior art, a screening method is used for grading analysis of machine-made sand particles, test results are finally obtained through the test steps of sampling, drying, sample separation, screening, weighing, calculating, drawing and the like, the process is complex, the consumed time is long, and the method cannot be used for online detection of large-scale production machine-made sand.
The on-line device for analyzing the grain composition of the machine-made sand by using an image method is available in China. The device mainly analyzes the grain diameter and the grain shape of sand grains according to a machine-made sand photo shot on line, calculates the quantity and the distribution condition of grains with different grain diameters, thereby obtaining a grading curve of the machine-made sand grains and calculating the fineness modulus of the sand. Since the sand itself is fine particles smaller than 4.75mm, even if the picture is high-definition, the detection result is greatly different from the particle grading curve and fineness modulus measured by the national standard test method. In particular, for particles having a particle size of 0.315mm or less, the recognition efficiency is not good, the recognition accuracy is poor, and the content of stone powder (the content of particles having a particle size of 0.075mm or less) is not recognized.
Disclosure of Invention
The invention aims to solve the problems of poor recognition efficiency and poor recognition precision of weighing equipment in the prior art, provides a test method for separating machine-made sand particles according to particle size under the action of rotational flow by utilizing centrifugal force and gravity and a detection instrument for realizing the method, and is mainly used for online rapid detection of machine-made sand particle gradation in the production process.
The specific scheme of the invention is as follows:
designing a spiral-flow type machine-made sand particle grading analysis online rapid detection system, which comprises a blanking control device, a rotary material scattering device, a sand material grading and collecting device, a sand material grading and weighing device and a control system which are arranged in an outer frame, wherein after the rotary material scattering device receives quantitative blanking of the blanking control device, the rotary material scattering device rotates and throws materials at a constant speed to realize grading division in the sand material grading and weighing device, and finally, rapid detection is realized under the coordination of the control system;
the blanking control device comprises a hopper, a micro motor for controlling the opening and closing of a valve at the bottom of the hopper and a weighing sensor for measuring the load of the hopper;
the rotary spreading device comprises a spreading turntable and a small motor, wherein the spreading turntable is positioned below the valve at the bottom of the control hopper, the small motor drives the spreading turntable to rotate at a constant speed, a motor protection cover is arranged outside the small motor, a motor support is arranged at the bottom of the motor protection cover, and the motor support is fixed on a steel bracket;
the sand grading and collecting device comprises material separating cylinders which are coaxially sleeved at equal intervals, spiral rotary channels are arranged among the material separating cylinders, the bottoms of the rotary channels are communicated with the sand grading and collecting device, the adjacent material separating cylinders and the rotary channels are combined to form an arc-shaped material collecting groove, and the heights of the material separating cylinders are gradually reduced from inside to outside;
the sand grading weighing device comprises a plurality of weighing mechanisms with the same quantity as the rotating slide ways, each weighing mechanism comprises a weighing support, a weighing supporting plate, a weighing unit and a miniature weighing sensor, the weighing supports are welded below the steel supporting plates, the weighing supporting plates are hung on the weighing supports through the miniature weighing sensors, and the weighing units are placed above the weighing supporting plates.
In specific implementation, the control system comprises a packet controller and a background control system, wherein the controller controls the whole device to work according to a set flow, read test data and send data to the background control system; the system for online rapid detection of grading analysis of sand particles in rotational flow type machine-made sand as claimed in claim 1 comprises a background control system for receiving data, calculating, analyzing and drawing, and issuing next operation instruction to a controller, wherein the background control system comprises: the weighing sensor comprises a pull rope and a tension measuring mechanism arranged on the pull rope, an inverted cone valve matched in shape and position is arranged above a discharge hole at the bottom of the hopper, and the micro motor drives the inverted cone valve to move in the vertical direction.
The spiral turns of the rotary channels are 0.25, a mirror image station is formed between every two adjacent rotary channels, and then an aggregate segmentation ridge line at the top and an inlet of a linear sand grading and weighing device at the bottom are formed.
Or the number of spiral turns of the rotating channel is 0.5, and the spiral channels are uniformly distributed relative to the circumference of the material separating barrel.
In specific implementation, each weighing unit consists of a material collecting box and an overturning and discharging device. The material collecting box can move up and down, an electromagnet is arranged on the material collecting box, and the material collecting box is driven to move upwards when the electromagnet is electrified, so that the material collecting box is in sealed butt joint with the outlet of the material collecting groove of the detection device.
In specific implementation, each weighing unit is further provided with an overturning original piece for driving the weighing unit to discharge, the overturning original piece comprises Y-shaped push-pull rods hung on two sides of the weighing unit, the bottom of the I head of each push-pull rod is provided with a bearing element for maintaining balance of the push-pull rod, and the bottom of each weighing unit is provided with a limiting element for driving the weighing unit to overturn in the displacement process.
In specific implementation, the height of the arc-shaped material collecting groove of the barrel is reduced layer by layer from inside to outside.
In specific implementation, a counterweight is further arranged in the weighing unit to realize the overturning of the weighing unit 180.
A machine-made sand grain composition analysis and detection method uses a rotational flow type machine-made sand grain composition analysis online rapid detection system, and comprises the following steps:
(1) weighing preposition work: emptying the hopper, and reading the quality of the empty hopper; the prepared machine-made sand sample is put into a hopper, the mass of the sample is not less than 500g, and the volume of the sample is not more than 80% of the capacity of the hopper; the controller controls the sand material grading weighing device to empty the material collecting box of the weighing unit for possible residual materials; reading the mass of the sand hopper (containing the machine-made sand sample) and the mass of each empty weighing unit;
(2) screening and detecting: the electromagnet on the weighing unit is electrified to be tightly adsorbed on the steel supporting plate, and the outlet of the material collecting groove is kept in sealed contact with the inlet of the material collecting box of the weighing unit (16); the controller controls the small motor to be started and drives the material scattering disc to rotate; when the material spreading disc enters a constant speed and is stable, the controller controls the micro control motor to open the inverted cone door to uniformly discharge materials; closing the blanking control device and the material spreading device after the sample is emptied within the specified time; standing for more than 20 seconds, cutting off the power supply of an electromagnet on the weighing unit, and separating the aggregate box on the weighing unit from the outlet of the aggregate groove;
(3) analyzing and resetting; reading the total mass of the sand material and all the weighing units; the controller controls the weighing units to symmetrically empty sand samples with different grain diameters in sequence, and the mass of the emptied sand samples is read; the control system calculates the quality of each graded sand sample, analyzes the test result and draws a sand grain grading nonstandard curve by the drawing machine; further calculating standard curve data, drawing a sand grain composition standard curve by a making machine, and calculating fineness modulus and stone powder content; the detection device returns to the initial state and starts the next detection after a predetermined time.
The invention has the beneficial effects that:
the detection device is a mechanical device for analyzing and online detecting the rotational flow type machine-made sand particles, which is manufactured by utilizing the motion law of an object, and achieves the purpose of quick online automatic detection of the gradation of the machine-made sand particles. Compared with an image recognition method, the device has the following advantages: the detection device adopts a pure physical detection mode, the detection result is quantitative data, the quality of the sand material with different particle diameters is equivalent to the grading screen allowance of a national standard square-hole screen with different apertures, the detection result can be used for directly drawing a particle grading (nonstandard) curve of the machine-made sand, and the standard curve of the machine-made sand is obtained after slight correction by a background computer, so that the fineness modulus and the stone powder content of the machine-made sand are quickly calculated;
the detection device is a mechanical device, makes full use of the motion law of the object, and has reliable detection result and high repeatability.
The detection device directly obtains result data, has simple calculation process and unique calculation result, hardly occupies background resources and is an ideal online detection device;
the detection device has almost the same identification effect on sand grains without grain size, and the problem that fine grains cannot be identified does not exist, which is also the maximum motive power for development and research of the device;
the detection device automatically runs, automatically collects data, does not need to be attended, is a quality control real-time monitoring instrument for intelligently, automatically, massively and high-quality production machine-made sand, and has the advantages of small volume, low manufacturing cost, high detection speed and reliable result. 1. The power uses a 12V low-voltage direct-current power supply, and the safety and the reliability are realized; the detection device is arranged at the discharge port of the sand making equipment or the end part of the belt conveyor, and the air outlet is arranged in the dust removal range, so that the environment is not polluted; the detection device is developed by fully utilizing the rule that sand carries out rotational flow motion under the combined action of centrifugal force, gravity and air resistance; the detection device automatically operates, automatically acquires data, does not need to be attended, and is a real-time monitoring instrument for automatically producing the machine-made sand; the device has a simple structure, and the deviation of the test result meets the requirement of national standard test precision.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
FIG. 4 is a schematic structural diagram of a rotary material spreading device and a sand grading and collecting device in the invention;
FIG. 5 is another angular perspective view of the structure shown in FIG. 4;
FIG. 6 is a perspective view of another embodiment;
names of components in the drawings:
1. a micro-control motor; 2. a hopper; 3. a weighing sensor; 4. an inverted cone-shaped door; 5. a material spreading turntable; 6. a small-sized motor; 7. a motor protection cover; 8. a motor bracket; 9. collecting materials and dividing ridge lines; 10. an arc-shaped material collecting groove; 11. rotating the slideway; 12. an outlet of the material collecting groove; 13. a steel supporting plate; 14. a weighing bracket; 15. weighing a supporting plate; 16. a weighing unit; 17. a miniature weighing sensor of the weighing unit; 18. an outer frame; 19 minutes of the cylinder.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
A spiral-flow type machine-made sand grain composition analysis online rapid detection system is disclosed, referring to fig. 1 to 4, and comprises a blanking control device, a rotary material scattering device, a sand material grading collection device, a sand material grading weighing device and a control system which are arranged in an outer frame 18, wherein after the rotary material scattering device receives quantitative blanking of the blanking control device, the rotary material scattering device rotates and throws materials at a constant speed to realize grading in the sand material grading weighing device, and finally, rapid detection is realized under the coordination of the control system;
the blanking control device comprises a hopper 2, a micro motor for controlling the opening and closing of a valve at the bottom of the hopper 2 and a weighing sensor 3 for measuring the load of the hopper 2;
the rotary spreading device comprises a spreading turntable (5) positioned below a valve at the bottom of the control hopper 2 and a small motor 6 for driving the spreading turntable (5 to rotate at a constant speed, a motor protection cover 7 is arranged outside the small motor 6, a motor support 8 is arranged at the bottom of the motor protection cover 7, and the motor support 8 is fixed on a steel bracket;
the sand grading and collecting device comprises material separating cylinders 19 coaxially sleeved at equal intervals, spiral rotary channels are arranged among the material separating cylinders 19, the bottoms of the rotary channels are communicated with the sand grading and collecting device, the adjacent material separating cylinders 19 and the rotary channels are combined to form an arc-shaped material collecting groove 10, and the heights of the material separating cylinders 19 are gradually reduced from inside to outside;
the sand grading weighing device comprises a plurality of weighing mechanisms with the same number as the rotary slide ways 11, each weighing mechanism comprises a weighing support 14, a weighing support plate 15, a weighing unit 16 and a miniature weighing sensor 3, the weighing support 14 is welded below the steel support plate 13, the weighing support plate 15 is hung on the weighing support 14 through the miniature weighing sensor 3, and the weighing unit 16 is placed above the weighing support plate 15.
The control system comprises a controller and a background control system, wherein the controller controls the whole device to work according to a set flow, reads test data and sends the data to the background control system; and the background control system receives the data, calculates, analyzes and maps, and issues a next operation instruction to the controller.
Weighing sensor 3 includes the stay cord and installs the tension measuring mechanism on the stay cord, and the top of 2 bottom discharge gates of hopper is equipped with the back taper valve that the shape position matches, micro motor drives the ascending displacement in the vertical direction of back taper valve. The spiral turns of the rotary channels are 0.25, a mirror image station is formed between every two adjacent rotary channels, and then an aggregate segmentation ridge line 9 at the top and an inlet of a linear sand grading and weighing device at the bottom are formed.
Each weighing unit 16 consists of a material collecting box and a turnover emptying device. The material collecting box can move up and down, an electromagnet is arranged on the material collecting box, and the material collecting box is driven to move upwards when the electromagnet is electrified, so that the material collecting box is in sealed butt joint with the outlet 12 of the material collecting groove of the detection device.
Each weighing unit 16 is further provided with an overturning original for driving the weighing unit to discharge, the overturning original comprises a Y-shaped push-pull rod suspended on two sides of the weighing unit 16, a bearing element for maintaining balance of the push-pull rod is arranged at the bottom of the head I of the push-pull rod, and a limiting element is arranged at the bottom of the weighing unit 16 for driving the weighing unit 16 to overturn in the displacement process.
The height of the barrel arc-shaped material collecting groove 10 is reduced layer by layer from inside to outside.
A counterweight is also provided within the weighing cell 16 to enable the weighing cell 16180 to be inverted.
A machine-made sand grain composition analysis and detection method uses a rotational flow type machine-made sand grain composition analysis online rapid detection system, and comprises the following steps:
1 weighing preposition work: emptying the hopper 2, and reading the mass of the hopper 2; the prepared machine-made sand sample is loaded into a hopper 2, the mass of the sample is not less than 500g, and the volume of the sample is not more than 80% of the capacity of the hopper 2; the controller controls the sand grading and weighing device to empty the weighing unit 16 to collect the possible residual materials in the material box; reading the mass of the sand material hopper 2 containing the machine-made sand sample and the mass of each empty weighing unit 16;
2, screening and detecting: an electromagnet on the weighing unit 16 is electrified to be tightly adsorbed on a steel supporting plate 13, and the outlet 12 of the material collecting groove is kept in sealed contact with the inlet of the material collecting box of the weighing unit 16; the controller controls the small motor 6 to be started and drives the material scattering disk to rotate; when the material spreading disc enters a constant speed and is stable, the controller controls the micro control motor 1 to open the inverted cone door to uniformly discharge materials; closing the blanking control device and the material spreading device after the sample is emptied within the specified time; standing for more than 20 seconds, cutting off the power supply of the electromagnet on the weighing unit 16 to separate the upper material collecting box from the outlet 12 of the material collecting groove;
3. analyzing and resetting; reading the total mass of the sand plus all the weighing cells 16; the controller controls the weighing unit 16 to symmetrically discharge sand samples with different grain diameters in sequence, and the mass of the discharged sand samples is read; the control system calculates the quality of each graded sand sample, analyzes the test result and draws a sand grain grading non-standard curve; further calculating standard curve data, drawing a sand grain composition standard curve by a making machine, and calculating fineness modulus and stone powder content; the detection device returns to the initial state and starts the next detection after a predetermined time.
The small motor 6 provides a constant rotating speed for the spreading rotary disc 5, and the spreading rotary disc 5 provides centrifugal force for the sand discharged by the hopper 2.
Example 2
The principle of this embodiment is the same as embodiment 1, and the specific difference is that the number of spiral turns of the rotary channel is 0.5, and the spiral channels are uniformly distributed relative to the circumference of the material separating barrel 19.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an online quick detecting system of spiral-flow type mechanism sand grain composition analysis which characterized in that: the automatic sand-material grading and weighing device comprises a blanking control device, a rotary material scattering device, a sand material grading and collecting device, a sand material grading and weighing device and a control system which are arranged in an outer frame (18), wherein the rotary material scattering device rotates and throws materials at a constant speed after receiving quantitative blanking of the blanking control device so as to realize grading in the sand material grading and weighing device, and finally, quick detection is realized under the coordination of the control system;
the blanking control device comprises a hopper (2), a micro motor for controlling the opening and closing of a valve at the bottom of the hopper (2) and a weighing sensor (3) for measuring the load of the hopper (2);
the rotary spreading device comprises a spreading rotary disc (5) and a small motor (6), wherein the spreading rotary disc (5) is positioned below a valve at the bottom of the control hopper (2), the small motor (6) drives the spreading rotary disc (5) to rotate at a constant speed, a motor protective cover (7) is arranged outside the small motor (6), a motor support (8) is arranged at the bottom of the motor protective cover (7), and the motor support (8) is fixed on a steel bracket;
the sand grading and collecting device comprises material distributing barrels (19) coaxially sleeved at equal intervals, spiral rotating channels are arranged among the material distributing barrels (19), the bottoms of the rotating channels are communicated with the sand grading and collecting device, the adjacent material distributing barrels (19) and the rotating channels are combined to form an arc-shaped material collecting groove (10), and the heights of the material distributing barrels (19) are gradually reduced from inside to outside;
the sand grading weighing device comprises a plurality of weighing mechanisms which are consistent with the rotating slide ways (11) in quantity, each weighing mechanism comprises a weighing support (14), a weighing support plate (15), a weighing unit (16) and a micro weighing sensor (3), the weighing support (14) is welded below a steel support plate (13), the weighing support plate (15) is hung on the weighing support (14) through the micro weighing sensors (3), and the weighing unit (16) is placed above the weighing support plate (15).
2. The on-line rapid detection system for grading analysis of sand particles in a spiral-flow type machine-made sand of claim 1, wherein: the control system comprises a controller and a background control system, wherein the controller controls the whole device to work according to a set flow, reads test data and sends the data to the background control system; background control system receives data and calculates, analysis, drawing, gives the controller next step operation instruction simultaneously and divides the online quick detecting system of analysis of spiral-flow type mechanism sand grain composition as claimed in claim 1, its characterized in that: weighing sensor (3) include the stay cord and install the tension measuring mechanism on the stay cord, and the top of hopper (2) bottom discharge gate is equipped with the back taper valve that the shape position matches, micro motor drives the ascending displacement of vertical direction of back taper valve.
3. The on-line rapid detection system for grading analysis of sand particles in cyclone machine-made sand of claim 2, wherein: the spiral turns of the rotary channels are 0.25, a mirror image station is formed between every two adjacent rotary channels, and then an aggregate segmentation ridge line (9) at the top and an inlet of a linear sand material grading and weighing device at the bottom are formed.
4. The on-line rapid detection system for grading analysis of sand particles in cyclone machine-made sand of claim 2, wherein: the number of spiral turns of the rotary channel is 0.5, and the spiral channels are uniformly distributed relative to the circumference of the material distribution barrel (19);
the on-line rapid detection system for grading analysis of sand particles in a spiral-flow type machine-made sand of claim 1, wherein: each weighing unit (16) consists of a material collecting box and a turnover emptying device.
5. The material collecting box can move up and down, an electromagnet is arranged on the material collecting box, and the material collecting box is driven to move upwards when being electrified, so that the material collecting box is in sealed butt joint with the outlet (12) of the material collecting groove of the detection device.
6. The on-line rapid detection system for grading analysis of sand particles in a spiral-flow type machine-made sand of claim 1, wherein: each weighing unit (16) is further provided with an overturning original piece for driving the weighing unit to discharge, the overturning original piece comprises a Y-shaped push-pull rod hung on two sides of the weighing unit (16), a bearing element for maintaining balance of the push-pull rod is arranged at the bottom of the I head of the push-pull rod, and a limiting element is arranged at the bottom of the weighing unit (16) for driving the weighing unit (16) to overturn in the displacement process.
7. The on-line rapid detection system for grading analysis of sand particles by cyclone machine according to claim 4, characterized in that: the height of the barrel arc-shaped material collecting groove (10) is reduced layer by layer from inside to outside.
8. The on-line rapid detection system for grading analysis of sand particles in a rotational flow type machine according to claim 5, wherein: a counterweight is also arranged in the weighing unit (16) to realize the overturning of the weighing unit (16) 180.
9. A method for analyzing and detecting the gradation of manufactured sand particles, which is the cyclone type on-line quick detection system for analyzing the gradation of manufactured sand particles as claimed in claim 1, and is characterized in that: the method comprises the following steps:
(1) weighing preposition work: emptying the hopper (2), and reading the quality of the emptying hopper (2); the prepared machine-made sand sample is loaded into a hopper (2), the mass of the sample is not less than 500g, and the volume of the sample is not more than 80% of the capacity of the hopper (2); the controller controls the sand grading and weighing device to empty the material collecting and weighing unit (16) of the material collecting box with possible residual materials; reading the mass (containing the machine-made sand sample) of the sand material hopper (2) (2) and the mass of each empty weighing unit (16);
(2) screening and detecting: an electromagnet on the weighing unit (16) is electrified to be tightly adsorbed on a steel supporting plate (13), and the outlet (12) of the material collecting groove is kept in sealed contact with the inlet of the material collecting box of the weighing unit (16); the controller controls the small motor (6) to be started and drives the material spreading disc to rotate; when the material spreading disc enters a constant speed and is stable, the controller controls the micro control motor (1) to open the inverted cone door to uniformly discharge materials; closing the blanking control device and the material spreading device after the sample is emptied within the specified time; standing for more than 20 seconds, cutting off the power supply of an electromagnet on the weighing unit (16) to separate the upper material collecting box from the outlet (12) of the material collecting groove;
(3) analyzing and resetting; reading the total mass of the sand material plus all the weighing units (16); the controller controls the weighing unit (16) to symmetrically discharge sand samples with different grain diameters in sequence, and the mass of the discharged sand samples is read; the control system calculates the quality of each graded sand sample, analyzes the test result and draws a sand grain grading non-standard curve; further calculating standard curve data, drawing a sand grain composition standard curve by a making machine, and calculating fineness modulus and stone powder content; the detection device returns to the initial state and starts the next detection after a predetermined time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600182.2A CN114486610B (en) | 2021-12-24 | Online rapid detection system and method for cyclone type machine-made sand grain composition analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600182.2A CN114486610B (en) | 2021-12-24 | Online rapid detection system and method for cyclone type machine-made sand grain composition analysis |
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| CN114486610A true CN114486610A (en) | 2022-05-13 |
| CN114486610B CN114486610B (en) | 2024-04-26 |
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| CN107727540A (en) * | 2017-10-27 | 2018-02-23 | 华侨大学 | A kind of Machine-made Sand on-line measuring device and online test method |
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