CN210982703U - Little magnetic measurement device of sugarcane volume - Google Patents
Little magnetic measurement device of sugarcane volume Download PDFInfo
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- CN210982703U CN210982703U CN201921679919.2U CN201921679919U CN210982703U CN 210982703 U CN210982703 U CN 210982703U CN 201921679919 U CN201921679919 U CN 201921679919U CN 210982703 U CN210982703 U CN 210982703U
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Abstract
The utility model discloses a sugarcane-pressing quantity micro-magnetic measuring device, which replaces the measurement and control of a nucleon scale in the production of sugarcane pressing; the micro-magnetic measuring device of the utility model comprises a bracket, a cross bar A and a micro-magnetic sensor; the support is hinged with the conveyor belt baffle, and two ends of the cross rod A are fixed on the conveyor belt baffle in a crossing manner; the micro magnetic sensor is installed at one end of a sensor connecting rod of the support, and the sensor connecting rod is hung below the cross rod A through a chain. Through the design of the utility model, the sugarcane volume passing through the squeezer is ensured to be uniform and stable, the load of the squeezer is stable, the optimal compression ratio is obtained, and the squeezing efficiency is in the optimal state; the operation safety rate of related equipment is improved, the extraction rate of the sugar in the commodity is improved, the production cost and the maintenance cost are reduced, and the economic benefit is improved to the maximum extent; the device has the advantages of no nuclear radiation, no pollution to the environment, safety, environmental protection, low cost and simple maintenance.
Description
Technical Field
The utility model relates to a cane sugar factory preliminary treatment production process, concretely relates to little magnetic measuring device of sugarcane volume.
Background
In a pressing control system of a sugar factory, broken sugarcanes on a conveying belt need to be continuously measured and controlled so as to ensure balanced production, improve the sugar extraction rate of commodities, and improve the safety rate and the use efficiency of equipment. The nuclear scale is mostly used for measuring the amount of the sugar cane, however, the nuclear scale is easy to cause the following problems in the using process: 1) the radioactive nuclear source is used for measurement, so that nuclear radiation exists, harm is caused to a human body, pollution is caused to the environment, and the nuclear source has high management cost and high maintenance difficulty; 2) the nuclear balance has unstable performance and large ionization voltage drift, which causes inaccurate metering and unstable control; the nuclear scale is difficult to maintain, easy to damage and expensive in accessories and high in maintenance cost; 3) the nucleon scale is arranged in the middle of the sugarcane band, so that the measurement is seriously lagged, the control is seriously lagged, and the balance control effect cannot be achieved. In a part of pretreatment control systems of cane sugar factories, a microwave level meter, an ultrasonic level meter or a mechanical transmission type sliding resistor is rarely used for measuring the thickness of a cane layer and then the thickness of the cane layer is converted into the amount of the pressed cane, but the measurement methods have unsatisfactory effects due to large vibration of the installation position and strong dust viscosity. Aiming at the defects and shortcomings, a sugarcane quantity measuring device is needed to be designed, so that the sugarcane quantity passing through a squeezer meets production indexes, the optimal compression ratio of the squeezer is obtained, and the squeezing efficiency is in the optimal state; the running safety rate of various equipment is improved, the extraction rate of the sugar in the commodity is improved, the production cost and the maintenance cost are reduced, and the economic benefit is improved to the maximum extent; the device has the advantages of no nuclear radiation, no pollution to the environment, safety, environmental protection, low cost and simple maintenance.
The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The utility model provides a little magnetic measuring device of sugarcane volume to above-mentioned technical problem, ensure to measure in time, balanced control, stable production, guarantee the security of production, reduction production and cost of maintenance improve economic benefits.
In order to realize the purpose, the utility model adopts the following technical scheme:
a micro-magnetic measuring device for the amount of sugarcane comprises a bracket, a cross rod A and a micro-magnetic sensor; the support is hinged with the conveyor belt baffle, and two ends of the cross rod A are fixed on the conveyor belt baffle in a crossing manner; the micro magnetic sensor is installed at one end of a sensor connecting rod of the support, and the sensor connecting rod is hung below the cross rod A through a chain.
Further, the support also comprises a cross rod B and a sleeve; the cross rod B stretches across the conveyor belt baffle, and two ends of the cross rod B are hinged with the conveyor belt baffle through bearing seats; the other end of the sensor connecting rod is vertically connected to the middle position of the cross rod B through a sleeve.
Furthermore, support rods are arranged at the two sides of the sensor connecting rod and close to the sleeve; one end of the supporting rod is connected with the sensor connecting rod, and the other end of the supporting rod is connected with the cross rod B to form a triangular support.
Furthermore, a vertical rod is arranged at the joint of the sensor connecting rod and the cross rod B; the vertical rod is connected with the cross rod B through the sleeve.
Furthermore, the sensor connecting rod, the cross rod B and the vertical rod are vertical to each other.
Further, the micro-magnetic measuring device is arranged at the position of 300-500 mm of the secondary belt outlet.
The invention also provides a sugarcane-pressing quantity micro-magnetic measurement control method through the sugarcane-pressing quantity micro-magnetic measurement device, which comprises the following steps:
firstly, generating a constant magnetic field by using a magnetic field generator in a micro-magnetic measuring device, carrying out amplitude limiting processing and magnetic resistance detection, and then carrying out linear processing through an operational amplifier unit;
secondly, designing a fuzzy algorithm, performing linear interpolation on the fuzzy algorithm and the secondary belt speed, and correcting by S to obtain the instantaneous sugarcane pressing quantity which is consistent with the actual sugarcane pressing quantity;
thirdly, comparing and judging the instantaneous sugarcane pressing quantity with a given sugarcane pressing quantity, and then outputting a standard signal to control the speed of a secondary belt;
fourthly, interlocking the secondary belt speed with the primary belt speed, and controlling the primary belt speed by synthesizing a feedback signal through the current of the tearing machine and the material level of the secondary belt head;
fifthly, mutually interlocking the speed control of the primary belt with the speed control of the sugarcane conveyor; the speed of the sugarcane conveyor is determined by the current of the sugarcane conveyor, the current of the spreader, the current of the leveler and the material level of the outlet of the sugarcane conveyor;
sixthly, interlocking the secondary belt speed with the material level of the first presser elevated tank; the high-level tank material level signal of each row of the squeezer controls the speed of the corresponding squeezer, and parameters such as the speed of each rake tooth machine, the operation signal of a slag discharging belt, the pressure of lubricating oil, a cooling fan and the like are also interlocked with the squeezer;
furthermore, a gravity pendulum material measurer and a radar measurement and control instrument are also arranged in the belt speed control; controlling a primary belt by using a gravity pendulum hammer material detector, and controlling a turning plate sugarcane conveying belt by using a radar measurement and control instrument; primary belt, secondary belt and sugarcane conveying belt are adjusted in a linkage mode.
The utility model has the advantages of compared with the prior art:
(1) the utility model discloses replace the control of nuclear balance with little magnetic measurement device of sugarcane volume, through the accurate control sugarcane volume of little magnetic measurement device (t/h), make the sugarcane volume through the squeezer accord with the production index, make the squeezer obtain the optimum compression ratio, squeeze efficiency and be in the optimum state, improve all kinds of equipment operation safety rate, improve the extraction rate of commodity sugar, reduction in production cost and cost of maintenance; the device has the advantages of no nuclear radiation, no pollution to the environment, safety, environmental protection, low cost and simple maintenance.
(2) The utility model discloses horizontal pole A both ends among the little magnetic measuring device of sugarcane volume are fixed on the conveyer belt baffle, and the sensor connecting rod hangs in horizontal pole A below through the chain. The cross rod A and the chain are used for keeping the measuring device in contact with the crushed bagasse, the bottom of the measuring device is not touched when the material level is lowest, and the deformation of a measuring device component caused by the reaction is prevented when the secondary belt is rewound; the vertical rod has the function that when rewinding is needed, the rod piece and the motor change-over switch are interlocked to enable the micro-magnetic sensor to rise, and the effect of the vertical rod is the same as that of the transverse rod A.
(3) The utility model discloses set up the muffjoint structure on sensor connecting rod and the montant among the little magnetic measuring device of sugarcane amount of pressing respectively, be favorable to with sensor connecting rod and montant split, be convenient for transportation, installation.
(4) In the micro-magnetic measuring device, a cross rod B of a support is hinged on a conveying belt baffle through a bearing seat, so that the rotation of the support is realized. The micro-magnetic measuring device is arranged at the position of 300-500 mm of the secondary belt outlet, can accurately reflect the self-control response time when the secondary belt material level signal changes, and can timely vacate the space to prevent the deformation of the measuring device component caused by the reaction when the secondary belt is rewound.
Drawings
FIG. 1 is a schematic view A of the installation structure of the micro-magnetic measuring device;
FIG. 2 is a schematic diagram of a bracket structure of the micro-magnetic measuring device;
FIG. 3 is a schematic view B of the installation structure of the micro-magnetic measuring device;
FIG. 4 is a schematic view of the structure of a sugar cane production line;
FIG. 5 is a control diagram of a sugarcane production line;
FIG. 6 is a control flow chart of the micromagnetic measurement apparatus;
FIG. 7 is a waveform of the sugarcane production line and the secondary belt speed;
FIG. 8 is a comparison graph of the A line first and second belt speed curves controlled by the micro-magnetic measuring device and the nucleon balance;
FIG. 9 is a graph comparing loss and extraction of sugar cane on line A using a micromagnetic measuring device and a nucleon scale;
FIG. 10 is a schematic diagram of the application of the micromagnetic measuring device in the automatic control of sugar cane mill.
In the drawings: 1. a conveyor belt; 2. a conveyor belt baffle; 3. a bearing seat; 4. a support; 5. a chain; 6, a cross bar A; 7. a micro-magnetic measuring device; 8. a gravity pendulum bob material detector; 9. a radar measurement and control instrument; 41. a vertical rod; 42. a support bar; 43. a cross bar B; 44. a sleeve; 45. a sensor connecting rod; 46. a micro-magnetic sensor.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the invention is not limited by the embodiment. It should be understood that the following embodiments of the present invention refer to "up", "down", "left" and "right" directions, all of which are based on the position of the corresponding drawings. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.
Embodiment 1: as shown in the attached drawings: in fig. 1, a micro-magnetic measuring device 7 is arranged on a conveyor belt baffle 2 of a conveyor belt 1, the conveyor belt 1 is a secondary conveyor belt, and the micro-magnetic measuring device 7 is arranged at a position 300mm away from an outlet of the secondary belt, so that the self-control response time can be accurately reflected when a secondary belt material level signal changes, and a space can be timely vacated when the secondary belt is rewound to prevent the deformation of a measuring device component caused by reaction; the micro-magnetic measuring device 7 comprises a support 4, a cross bar A6 and a micro-magnetic sensor 46. As shown in fig. 2, the support 4 includes a vertical rod 41, a support rod 42, a cross rod B43, a sleeve 44, and a sensor connecting rod 45; one end of the vertical rod 41 is vertically connected to the middle part of the cross rod B43; one end of the sensor connecting rod 45 is vertically connected to the middle part of the cross rod B43; the vertical rod 41, the cross rod B43 and the sensor connecting rod 45 are mutually vertical in pairs. The supporting rods 42 are arranged on two sides of the sensor connecting rod 45, one end of each supporting rod is connected with the sensor connecting rod 45, and the other end of each supporting rod is connected with the cross rod B43 to form a triangular support. The micro magnetic sensor 46 is disposed at the end of the sensor connection rod 45 remote from the crossbar B43. The sensor connecting rod 45 and the vertical rod 41 are respectively provided with a sleeve 44 connecting structure, so that the sensor connecting rod 45 and the vertical rod 41 are separated, and transportation and installation are facilitated. As shown in fig. 1, a cross bar B43 of the bracket 4 is hinged and fixed on the conveyor belt baffle 2 through a bearing seat 3, so as to realize the rotation of the bracket 4; a cross bar A6 is arranged above the sensor connecting rod 45 and close to the micro magnetic sensor 46; the two ends of the cross bar A6 are fixed on the conveyor apron 2, and the sensor connecting rod 45 is hung below the cross bar A6 through a chain 5. The function of the cross bar A6 and the chain 5 is to keep the measuring device in contact with the crushed bagasse, and when the lowest material level is not touched, the measuring device component is prevented from being deformed due to the reaction when the conveyor belt is rewound; the vertical rod 41 is used for enabling the micro-magnetic sensor 46 to rise through the interlocking action of the rod piece and the motor change-over switch when the secondary tape is rewound, and the function of the micro-magnetic sensor is the same as that of the cross rod A6. As shown in fig. 4, a micromagnetic measuring device 7, a gravity pendulum hammer material measuring device 8 and a radar measuring and controlling instrument 9 are arranged in the sugarcane production line at the same time, and the micromagnetic measuring device 7 controls a secondary belt; the gravity pendulum material detector 8 controls the primary belt and controls the turnover sugarcane conveying belt by a radar measurement and control 9 on the basis of the speed of the secondary belt; secondary belt, primary belt and sugarcane conveying belt are adjusted in a linkage mode, and sugarcane is pressed in a balanced mode.
Embodiment 2: unlike the above embodiment 1, the micromagnetic measuring device 7 is installed at 500mm of the exit of the secondary tape.
The invention discloses a method for controlling the sugarcane squeezing amount through a micro-magnetic measuring device, firstly measuring the absorptivity of bagasse and bagasse moisture to a constant magnetic field through a micro-magnetic sensor according to the magnetic resistance physical characteristics of the bagasse and the bagasse moisture to the constant magnetic field, and then accurately reading out the instantaneous sugarcane squeezing amount through the algorithm function in a DCS (distributed control system), wherein the specific control method comprises the following steps:
as shown in fig. 6: a micro-magnetic measurement control method for the amount of sugarcane is characterized in that the speed of a secondary belt is controlled by a micro-magnetic measurement device arranged at the outlet of the secondary belt. The micro-magnetic measuring device utilizes a magnetic field generator to generate a constant magnetic field, and linear processing is carried out through an operational amplifier unit after amplitude limiting processing and magnetic resistance detection; then the fuzzy algorithm carries out linear interpolation with the secondary belt speed, then an instantaneous sugar cane squeezing amount (t/h) which is in line with the actual sugar cane squeezing amount is obtained through S correction, a state correction algorithm is plugged, drift caused by other internal and external factors such as temperature, humidity and crushing degree is corrected, finally comparison judgment is carried out through the instantaneous sugar cane squeezing amount (t/h) and the given sugar cane squeezing amount (t/h), and the secondary belt speed controlled by a standard signal is output.
Secondly, the secondary belt speed is interlocked with the primary belt speed, and the current of the 4-row tearing machine and the secondary belt head material level signal are synthesized into a feedback signal to control the primary belt speed. The speed control of the primary belt is interlocked with the speed control of the sugarcane conveyor. The speed of the sugarcane conveyor is determined by the current of the sugarcane conveyor, the current of the spreader, the current of the leveler and the material level of the outlet of the sugarcane conveyor. (firstly, signals such as current of the sugarcane conveyor, current of the spreader, current of the leveler and material level at the outlet of the sugarcane conveyor are collected, fitted and judged, and then a standard signal is output to control the speed of the sugarcane conveyor.)
Likewise, the secondary belt speed also interlocks with the first press (No. 1 press) overhead bin level. The high-level tank material level signals of all the rows of the squeezer control the speed of the squeezer, and parameters such as the speed of each rake tooth machine, the operation signals of the slag discharging belt, the pressure of lubricating oil, the cooling air pressure and the like are interlocked with the squeezer. Through the multiple control modes, the sugarcane pressing quantity (t/h) is accurately controlled under the action of the micro-magnetic measuring device, the sugarcane quantity passing through the squeezer accords with production indexes, the squeezer obtains the optimal compression ratio, the squeezing efficiency is in the optimal state, the running safety rate of various devices is improved, the extraction rate of commodity sugar is improved, the production cost and the maintenance cost are reduced, and the economic benefit is improved to the maximum extent.
As shown in the attached figures 7-10: in fig. 7, the cane press amount at the press A, B line was compared to the secondary belt speed using a micromagnetic measuring device and a nucleon scale, respectively. As can be seen from the figure, the given amount of sugarcane and the current of the No. 1 squeezer tend to be more stable and balanced through the use of the micromagnetic measuring device. In fig. 8, the first and second belt control rotation speeds of the a line under the control of the nuclear scale and the micromagnetic measurement are detected, respectively, and the obtained results show that the first and second belt control rotation speeds of the a line are relatively more stable under the control of the micromagnetic measurement. Shown in conjunction with fig. 8 and 9: when the nucleon balance is used for controlling production, the sugarcane-pressing loss time is longer than that of the micro-magnetic control, and correspondingly, the A-line extraction rate controlled by the nucleon balance is relatively low. And the micro-magnetic measuring device can accurately control the amount of the sugarcane after replacing a nuclear scale, thereby improving the production benefit. In fig. 10, the three lines from top to bottom are: 1) the instantaneous sugarcane squeezing amount measured by the micro-magnetic measuring device is represented; 2) indicates the given amount of sugarcane. 3) Indicating the secondary tape feedback speed. The first curve and the second curve are basically superposed, the instantaneous squeezing quantity of 395t/h is set to slightly fluctuate within a given value range according to the material balance requirement of the secondary belt in an automatic state, the feedback speed of the secondary belt tends to balance, the micro-magnetic measurement automatic control scheme is reasonable, and the automatic effect is good; and the results of the micro-magnetic measurement and the nucleon scale measurement for the given amount of the squeezed sugarcane show that the micro-magnetic measurement can more accurately control the amount (t/h) of the squeezed sugarcane relative to the nucleon scale, and can meet the requirement of accurate production.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A little magnetic measuring device of sugarcane amount, its characterized in that: the micro-magnetic measuring device comprises a bracket, a cross rod A and a micro-magnetic sensor; the support is hinged with the conveyor belt baffle, and two ends of the cross rod A are fixed on the conveyor belt baffle in a crossing manner; the micro magnetic sensor is installed at one end of a sensor connecting rod of the support, and the sensor connecting rod is hung below the cross rod A through a chain.
2. The sugarcane-pressing quantity micro-magnetic measuring device according to claim 1, characterized in that: the support also comprises a cross rod B and a sleeve; the cross rod B stretches across the conveyor belt baffle, and two ends of the cross rod B are hinged with the conveyor belt baffle through bearing seats; the other end of the sensor connecting rod is vertically connected to the middle position of the cross rod B through a sleeve.
3. The sugarcane-pressing quantity micro-magnetic measuring device according to claim 2, characterized in that: supporting rods are arranged at the two sides of the sensor connecting rod and close to the sleeve; one end of the supporting rod is connected with the sensor connecting rod, and the other end of the supporting rod is connected with the cross rod B to form a triangular support.
4. The sugarcane-pressing quantity micro-magnetic measuring device according to claim 2, characterized in that: a vertical rod is further arranged at the joint of the sensor connecting rod and the cross rod B; the vertical rod is connected with the cross rod B through the sleeve.
5. The sugarcane-pressing quantity micro-magnetic measuring device according to claim 4, characterized in that: the sensor connecting rod, the cross rod B and the vertical rod are vertical to each other.
6. The sugarcane-pressing quantity micro-magnetic measuring device according to claim 1, characterized in that: the micro-magnetic measuring device is arranged at the position of 300-500 mm of the secondary belt outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921679919.2U CN210982703U (en) | 2019-10-09 | 2019-10-09 | Little magnetic measurement device of sugarcane volume |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921679919.2U CN210982703U (en) | 2019-10-09 | 2019-10-09 | Little magnetic measurement device of sugarcane volume |
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| CN210982703U true CN210982703U (en) | 2020-07-10 |
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| CN201921679919.2U Active CN210982703U (en) | 2019-10-09 | 2019-10-09 | Little magnetic measurement device of sugarcane volume |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609245A (en) * | 2019-10-09 | 2019-12-24 | 广西思晔自动化科技有限公司 | Sugarcane amount micro-magnetic measurement control method and device |
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2019
- 2019-10-09 CN CN201921679919.2U patent/CN210982703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609245A (en) * | 2019-10-09 | 2019-12-24 | 广西思晔自动化科技有限公司 | Sugarcane amount micro-magnetic measurement control method and device |
| CN110609245B (en) * | 2019-10-09 | 2024-02-27 | 广西思晔自动化科技有限公司 | Micro-magnetic measurement control method and device for sugarcane squeezing quantity |
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Inventor after: Huang Rishan Inventor after: Li Shijian Inventor after: Zhang Zhi Inventor before: Huang Rishan Inventor before: Li Shijian Inventor before: Zhang Zhi |