阅读说明：本技术 一种榨蔗量微磁测量控制方法及其装置 (Sugarcane amount micro-magnetic measurement control method and device ) 是由 黄日山 李什坚 张智 于 2019-10-09 设计创作，主要内容包括：本发明公开了一种榨蔗量微磁测量控制方法及其装置,取代核子秤控制；本发明的微磁测量装置包括支架、横杆A、微磁传感器；所述支架与传送带挡板铰接,所述横杆A两端横跨固定在传送带挡板上；所述微磁传感器安装在所述支架的传感器连接杆的一端,传感器连接杆通过链条悬挂在横杆A下方。在微磁测量装置的辅助下,实现一级带、二级带、输蔗带、压榨机料位的联动控制,精准控制榨蔗量(t/h),确保通过压榨机的甘蔗量符合生产指标,使压榨机获得最优压缩比、压榨效能处于最佳状态；提高各类设备运行安全率,提高商品糖分的抽查率,降低生产成本及维修成本,最大限度提高经济效益；本装置无核辐射、对环境不造成污染,安全环保,成本低、维护简单。(The invention discloses a sugarcane amount micro-magnetic measurement control method and a device thereof, which replace the control of a nuclear scale; 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. Under the assistance of a micro-magnetic measuring device, the linkage control of a primary belt, a secondary belt, a sugarcane conveying belt and the material level of a squeezer is realized, the sugarcane pressing amount (t/h) is accurately controlled, the sugarcane amount passing through the squeezer is ensured to accord with production indexes, the squeezer obtains the optimal compression ratio, and the squeezing efficiency is in the optimal state; the running safety rate of various devices is improved, the spot check rate of sugar content of commodities 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.)

1. A sugarcane-pressing quantity micro-magnetic measurement control method is characterized by comprising 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 standard feedback signals 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; firstly, collecting, fitting and judging signals of the current of the sugarcane conveyor, the current of the spreader, the current of the leveler and the material level at the outlet of the sugarcane conveyor, and then outputting a standard signal to control the speed 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 signals of all the rows of the squeezers control the speed of the corresponding squeezers, 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 also controlled in an interlocking manner with the squeezers.

2. The sugarcane-pressing quantity micro-magnetic measurement control method according to claim 1, characterized in that: a gravity pendulum material measurer and a radar measurement and control instrument are also arranged in the belt speed control; controlling a orange peel by using a gravity pendulum hammer tester, and controlling a turnover plate sugarcane conveying belt by using a radar measuring and controlling instrument; primary belt, secondary belt and sugarcane conveying belt are adjusted in a linkage mode.

3. A device for realizing the sugarcane-pressing amount micro-magnetic measurement control method according to claim 1, 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.

4. The sugarcane-pressing quantity micromagnetic measurement control device according to claim 3, 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 connecting piece.

5. The sugarcane-pressing quantity micromagnetic measurement control device according to claim 4, 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.

6. The sugarcane-pressing quantity micromagnetic measurement control device according to claim 4, 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.

7. The sugarcane-pressing quantity micromagnetic measurement control device according to claim 6, wherein: the sensor connecting rod, the cross rod B and the vertical rod are vertical to each other.

8. The sugarcane-pressing quantity micromagnetic measurement control device according to claim 3, characterized in that: the micro-magnetic measuring device is arranged at the position of 300-500 mm of the secondary belt outlet.

Technical Field

The invention relates to a sugar cane factory pretreatment production process, in particular to a sugar cane amount micro-magnetic measurement control method and a device thereof.

Background

In the pretreatment production process of a cane sugar factory, broken sugarcanes on a conveyor belt need to be continuously measured 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) personal and environmental risks exist due to problems of radiation, attenuation, nuclear source management and the like; 2) the nucleon balance appears when working: the ionization voltage is unstable, which causes inaccurate measurement; the maintenance is difficult and the maintenance cost is high; 3) the nucleon scale is arranged in the middle of the sugarcane band, so that the measurement is seriously lagged, and the self-control effect is not ideal. In some pressing control systems of cane sugar factories, a microwave level gauge, an ultrasonic level gauge or a mechanical transmission type sliding resistor is rarely used for measuring the thickness of a cane layer and then converting the thickness into the amount of the pressed cane, but the measuring 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 for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

Disclosure of Invention

The invention provides a sugarcane-pressing quantity micro-magnetic measurement control method and a device thereof aiming at the technical problems, so that the sugarcane quantity passing through a presser is ensured to meet production indexes, the presser obtains the optimal compression ratio, and the pressing 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.

In order to achieve the purpose, the invention adopts the following technical scheme:

a micro-magnetic measurement control method for sugarcane amount 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 standard signals 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; firstly, signals such as current of a sugarcane conveyor, current of a throwing machine, current of a straightening machine, material level of an 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;

sixthly, interlocking the secondary belt speed with the material level of the first presser elevated tank; the high-level tank material level signals of all the rows of the squeezers control the speed of the corresponding squeezers, 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 also controlled in an interlocking manner with the squeezers.

Furthermore, a gravity pendulum material measurer and a radar measurement and control instrument are also arranged in the belt speed control; controlling a orange peel by using a gravity pendulum hammer tester, and controlling a turnover plate sugarcane conveying belt by using a radar measuring and controlling instrument; primary belt, secondary belt and sugarcane conveying belt are adjusted in a linkage mode.

The invention also provides a device for realizing the sugarcane amount micromagnetic measurement control method, wherein the micromagnetic measurement device comprises a bracket, a cross rod A and a micromagnetic 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.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention replaces the control of a nuclear balance, realizes the accurate control of the sugarcane pressing amount (t/h) under the assistance of a micro-magnetic measuring device, ensures that the sugarcane amount passing through the squeezer accords with production indexes, and ensures that the squeezer obtains the optimal compression ratio and the optimal squeezing efficiency. 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.

(2) Set up the muffjoint structure on sensor connecting rod and the montant respectively, be favorable to with sensor connecting rod and montant split, be convenient for transportation, installation.

(3) The cross rod B of the support is hinged to the conveying belt baffle through a bearing seat, and rotation of the support is achieved. The micro-magnetic measuring device is arranged at the position of 300-500 mm of the secondary belt outlet, and can accurately reflect the self-control response time when the secondary belt material level signal changes.

(4) The both ends of horizontal pole A are fixed on the conveyer belt baffle, and the sensor connecting rod hangs in horizontal pole A below through the chain. The function of horizontal pole A and chain is to make measuring device and broken bagasse keep in contact, and does not touch the end when minimum material level, prevents that the reaction from arousing that measuring device component warp when the secondary belt is rewound.

(5) The vertical rod has the function that when rewinding is needed, the rod piece and the secondary motor change-over switch are interlocked to make the micro-magnetic sensor rise, and the effect of the vertical rod is the same as that of the transverse rod A.

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

One embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited to the embodiment. It should be understood that the directions of "up", "down", "left" and "right" mentioned in the following embodiments of the invention are all based on the positions 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.