阅读说明：本技术 一种电解铝智能换极测量系统装置及方法 (intelligent pole-changing measurement system device and method for electrolytic aluminum ) 是由 张腾 朱逸武 胡辉 易志刚 于 2019-04-01 设计创作，主要内容包括：本发明涉及电解技术领域,公开一种电解铝智能换极测量系统装置及方法。装置包括少于一组阳极提升装置、阳极测量机构、主控制器；每组阳极提升装置由两个阳极提升机构组成；两个阳极提升机构具有同步性；阳极测量机构包括安装支架、的升降装置、测距装置、测量杆行程计量装置；主控制器分别与阳极提升装置、阳极测量机构电连接。系统设有主控模块、显示控制模块、驱动控制模块、数据采集模块、遥控接口模块、电源保护模块。以及一种电解铝预焙槽智能更新新旧阳极块的方法。本发明的一种电解铝智能换极测量系统装置及方法,自动化程度高,工作效率高,应用环境范围大,有效的解放人力,减少误差。(The invention relates to the technical field of electrolysis, and discloses an electrolytic aluminum intelligent pole-changing measuring system device and method. The device comprises less than one group of anode lifting devices, an anode measuring mechanism and a main controller; each group of anode lifting devices consists of two anode lifting mechanisms; the two anode lifting mechanisms have synchronism; the anode measuring mechanism comprises a mounting bracket, a lifting device, a distance measuring device and a measuring rod stroke metering device; the main controller is respectively electrically connected with the anode lifting device and the anode measuring mechanism. The system is provided with a main control module, a display control module, a driving control module, a data acquisition module, a remote control interface module and a power supply protection module. And a method for intelligently updating new and old anode blocks in an electrolytic aluminum pre-baking tank. The intelligent pole-changing measuring system device and method for electrolytic aluminum, disclosed by the invention, have the advantages of high automation degree, high working efficiency and wide application environment range, effectively liberate manpower and reduce errors.)

1. The utility model provides an electrolytic aluminum intelligence pole-changing measuring device, includes multi-functional overhead traveling crane, its characterized in that includes: at least one group of anode lifting devices, anode measuring mechanisms and a main controller;

Each group of anode lifting devices consists of at least two anode lifting mechanisms; each anode lifting mechanism is provided with an anode stroke metering device; the two anode lifting mechanisms have synchronism; each anode lifting mechanism is arranged on the multifunctional crown block;

The anode measuring mechanism comprises a lifting device, a distance measuring device and a measuring rod stroke metering device, wherein the lifting device is arranged at the bottom of an installation support of the multifunctional crown block and used for lifting the anode measuring mechanism, the distance measuring device is arranged at the bottom of the lifting device, and the measuring rod stroke metering device is used for measuring the movement of the lifting device;

and the main controller is electrically connected with the anode lifting device and the anode measuring mechanism respectively.

2. The intelligent pole changing device for the electrolytic aluminum according to claim 1, wherein each group of the anode lifting devices consists of two anode lifting mechanisms; the lifting rods of the two anode lifting mechanisms are provided with displacement sensors and speed regulating valves on the same horizontal line; the displacement sensor and the speed regulating valve are electrically connected with the main controller and are used for monitoring the lifting distance of the anode lifting mechanisms in real time, regulating the lifting speed of the anode lifting mechanisms and ensuring the synchronism of the displacement and the speed of the two anode lifting mechanisms.

3. The intelligent pole changing device for the electrolytic aluminum according to claim 1, wherein the lifting device of the anode measuring mechanism comprises a linear guide rail mechanism; the linear guide rail mechanism controls the lifting of the distance measuring device;

the linear guide rail mechanism consists of a motor, a speed reducer and a linear unit guide rail; the motor is connected with the speed reducer and fixed at the bottom of the mounting bracket; the speed reducer is connected with the linear unit guide rail, and the bottom of the linear unit guide rail is fixedly connected with the distance measuring device.

4. the intelligent pole changing device for electrolytic aluminum according to claim 1, wherein the distance measuring device of the anode measuring mechanism is composed of a dustproof cooling box, a spiral pipe cooling gun and a laser distance measuring mechanism;

The top of the dustproof cooling box is fixed at the bottom of the lifting device; a spiral pipe cooling gun and a laser ranging mechanism are arranged in the dustproof cooling box; and a lens is arranged on the outer side of the dustproof cooling box, and the laser ranging mechanism measures the distance between the anode carbon blocks through the lens.

5. an electrolytic aluminum intelligent pole-changing measuring system is characterized by comprising a main controller; the main controller is provided with a main control module, a display control module, a driving control module, a data acquisition module, a remote control interface module and a power supply protection module;

the main control module is respectively connected with the display control module, the driving control module, the data acquisition module, the remote control interface module and the power protection module; the main control module is provided with a PLC control system and is used for receiving and processing data transmitted by each module and feeding back the data to each module to issue an instruction;

the display control module is provided with a display screen and an LED screen and is used for displaying data and instructions received and processed by the main control module and transmitted by each module;

the remote control interface module is electrically connected with an externally arranged remote controller to realize communication control;

the data acquisition module is provided with a standard digital quantity and analog quantity input module and is used for digitally converting the data acquired by the sensor and transmitting the data to the main control module;

the drive control module is provided with a standard digital and analog output module for converting the instruction of the main control module so as to control the lifting displacement of each device in the electrolytic aluminum displacement electrode measuring device.

6. the intelligent pole-changing measurement system for electrolytic aluminum according to claim 5, wherein the data acquisition module is composed of a stroke metering device of the anode lifting mechanism, a distance measuring device of the anode measuring mechanism and a sensor of the measuring rod stroke metering device; the data acquisition module is used for acquiring the lifting distance parameter of the crown block of the anode lifting mechanism, the lifting distance parameter of the anode measuring mechanism and the scanning anode bottom surface height of the distance measuring device, and digitally transmitting the parameters to the main control module.

7. a method for intelligently updating new and old anode blocks in an electrolytic aluminum pre-baking tank is characterized by comprising the following steps:

S1: preparing and debugging a pole changing measurement system; the main control module controls each anode lifting mechanism in each group of anode lifting devices to be in the same horizontal position, and the anode measuring mechanism is reset to a preset designated position of the main control module;

s2: taking old slot positions: the anode lifting mechanism descends to lift the old anode, and when the gravity measured by the weight measuring sensor reaches a system set value, the value a is recorded as an old anode slot position;

s3: and (3) measuring an old anode: after the main controller controls the crown block to convey the old anode to a designated position, the anode lifting mechanism lifts the old anode to the highest position, then descends, and simultaneously opens the anode measuring mechanism, the distance measuring device automatically scans the bottom surface of the old anode, after the scanning is finished, the descending height b value of the old anode is recorded, and the height h value of the distance measuring device at the moment is recorded;

S4: unloading the old anode and hoisting the new anode;

S5: double anode synchronization: the main controller automatically starts the synchronous control of the two new anodes and controls the speed change of the speed regulating valve to enable the bottoms of the two anodes to be positioned on the same horizontal plane;

s6: and (3) measuring a new anode: after the main controller controls the crown block to convey the new anode to a designated position, the anode lifting mechanism lifts the new anode to the highest position, then descends, and simultaneously opens the anode measuring mechanism, the distance measuring device automatically scans the bottom surface of the new anode, after the scanning is finished, the descending height c value of the new anode is recorded, and the height n value of the distance measuring device at the moment is recorded;

S7: and (4) placing a new anode: the main controller controls the crown block to convey a new anode to the designated slot position, and the main control module obtains a new anode slot position difference e according to the data measured in the step, so that the system automatically calculates the height d of the new anode to be lowered; lowering the new anode by the height d, and stopping under the new anode; and the slot position clamping fixture fixes the new anode.

8. the method for intelligently updating new and old anode blocks in an electrolytic aluminum pre-baking cell as claimed in claim 7, wherein in step S7, the calculation method of "new pole cell head" e is e ═ n-c) - (h-b).

9. The method for intelligently updating the old and new anode blocks in the electrolytic aluminum pre-baking tank as claimed in claim 7, wherein in the step S7, the required descending height d of the new anode when being loaded into the tank is calculated as d-a-e.

10. the method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell as claimed in claim 7, wherein in the steps S1-S7, the measured parameters a, b, c and d are measured by a displacement sensor of an anode lifting mechanism; the parameters h and n are obtained by measuring through a measuring rod stroke metering device in the anode measuring mechanism.

Technical Field

The invention relates to the technical field of electrolysis, in particular to an intelligent pole-changing measurement system device and method for electrolytic aluminum.

background

The modern aluminum electrolysis production basically adopts a prebake cell due to the requirement of environmental protection, when the electrodes are replaced in the prebake cell, the distribution of the anode current of the electrolytic cell is directly influenced because whether the height of a new electrode in the cell meets the requirement of the electrolysis process, and the anode current is unevenly distributed due to overhigh or overlow, so that the electrolytic cell swings, and finally, a sick cell is caused.

In the prior art, an aluminum electrolysis plant mostly adopts an artificial marking method and a reference platform measuring method during pole changing. The manual marking method is mainly characterized in that before pole changing, an operator marks a line on an old anode guide rod to be changed and remembers the position; drawing a line on the old anode by using a bent ruler after the old anode is lifted up, and recording the position on the bent ruler; drawing a new pole with a bent ruler, and recording the position on the new pole; and when the new pole is placed, the new pole is placed according to the position recorded by the drawn line. The mode of manually marking and confirming the height not only increases the labor intensity of workers, but also is easy to generate errors (+/-10 mm); in the reference platform measuring method, a movable trolley is used as a reference surface, the bottom of each of the new anode and the old anode is flush with the reference surface, and the new anode and the old anode record strokes. When the reference surface is not changed, the stroke difference recorded by the new anode and the old anode is the thickness difference of the anode, and the pole change measurement can be completed by matching with the old anode position recorded by the stroke recording equipment. However, the method needs special people to drag the reference platform trolley, and the efficiency is low. Therefore, a novel automatic anode height measuring system which can meet the requirement of measurement accuracy and reduce the operation of field personnel is needed to fill up the application gap.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides an intelligent electrolytic aluminum pole-changing measuring system device and method which have the advantages of high automation degree, strong operability and high precision and can effectively reduce errors and dangerousness caused by manual operation.

The purpose of the invention is realized by the following technical scheme:

An electrolytic aluminum intelligent pole-changing measuring device, comprising: at least one group of anode lifting devices, anode measuring mechanisms and a main controller;

Each group of anode lifting devices consists of two anode lifting mechanisms; each anode lifting mechanism is provided with an anode stroke metering device; the two anode lifting mechanisms have synchronism; each anode lifting mechanism is arranged on the crown block;

The anode measuring mechanism comprises a lifting device, a distance measuring device and a measuring rod stroke metering device, wherein the lifting device is arranged at the bottom of the multifunctional crown block mounting bracket and used for lifting the anode measuring mechanism;

and the main controller is electrically connected with the anode lifting device and the anode measuring mechanism respectively.

Further, each group of anode lifting devices consists of two anode lifting mechanisms; the lifting rods of the two anode lifting mechanisms are provided with displacement sensors and speed regulating valves on the same horizontal line; the displacement sensor and the speed regulating valve are electrically connected with the main controller and are used for monitoring the lifting distance of the anode lifting mechanisms in real time, regulating the lifting speed of the anode lifting mechanisms and ensuring the synchronism of the displacement and the speed of the two anode lifting mechanisms.

further, the lifting device of the anode measuring mechanism comprises a linear guide rail mechanism; the linear guide rail mechanism controls the lifting of the distance measuring device;

the linear guide rail mechanism consists of a motor, a speed reducer and a linear unit guide rail; the motor is connected with the speed reducer and fixed at the bottom of the mounting bracket; the speed reducer is connected with the linear unit guide rail, and the bottom of the linear unit guide rail is fixedly connected with the distance measuring device.

Furthermore, the distance measuring device of the anode measuring mechanism consists of a dustproof cooling box, a spiral pipe cooling gun and a laser distance measuring mechanism;

the top of the dustproof cooling box is fixed at the bottom of the lifting device; a spiral pipe cooling gun and a laser ranging mechanism are arranged in the dustproof cooling box; and a lens is arranged on the outer side of the dustproof cooling box, and the laser ranging mechanism measures the distance between the anode carbon blocks through the lens.

An electrolytic aluminum intelligent pole-changing measuring system comprises a main controller; the main controller is provided with a main control module, a display control module, a driving control module, a data acquisition module, a remote control interface module and a power supply protection module;

the main control module is respectively connected with the display control module, the driving control module, the data acquisition module, the remote control interface module and the power protection module; the main control module is provided with a PLC control system and is used for receiving and processing data transmitted by each module and feeding back the data to each module to issue an instruction;

The display control module is provided with a display screen and an LED screen and is used for displaying data and instructions received and processed by the main control module and transmitted by each module;

the remote control interface module is electrically connected with an externally arranged remote controller to realize communication control;

The data acquisition module is provided with a standard digital quantity and analog quantity input module and is used for digitally converting the data acquired by the sensor and transmitting the data to the main control module;

the drive control module is provided with a standard digital and analog output module for converting the instruction of the main control module so as to control the lifting displacement of each device in the electrolytic aluminum displacement electrode measuring device.

Furthermore, the data acquisition module consists of a stroke metering device of the anode lifting mechanism, a distance measuring device of the anode measuring mechanism and a sensor of the measuring rod stroke metering device; the data acquisition module is used for acquiring the lifting distance parameter of the crown block of the anode lifting mechanism, the lifting distance parameter of the anode measuring mechanism and the scanning anode bottom surface height of the distance measuring device, and digitally transmitting the parameters to the main control module.

A method for intelligently updating new and old anode blocks in an electrolytic aluminum pre-baking tank comprises the following steps:

S1: preparing and debugging a pole changing measurement system; the main control module controls each anode lifting mechanism in each group of anode lifting devices to be in the same horizontal position, and the anode measuring mechanism is reset to a preset designated position of the main control module;

S2: taking old slot positions: the anode lifting mechanism descends to lift the old anode, and when the gravity measured by the weight measuring sensor reaches a system set value, the value a is recorded as an old anode slot position;

S3: and (3) measuring an old anode: after the main controller controls the crown block to convey the old anode to a designated position, the anode lifting mechanism lifts the old anode to the highest position, then descends, and simultaneously opens the anode measuring mechanism, the distance measuring device automatically scans the bottom surface of the old anode, after the scanning is finished, the descending height b value of the old anode is recorded, and the height h value of the distance measuring device at the moment is recorded;

S4: unloading the old anode and hoisting the new anode;

S5: double anode synchronization: the main controller automatically starts the synchronous control of the two new anodes and controls the speed change of the speed regulating valve to enable the bottoms of the two anodes to be positioned on the same horizontal plane;

s6: and (3) measuring a new anode: after the main controller controls the crown block to convey the new anode to a designated position, the anode lifting mechanism lifts the new anode to the highest position, then descends, and simultaneously opens the anode measuring mechanism, the distance measuring device automatically scans the bottom surface of the new anode, after the scanning is finished, the descending height c value of the new anode is recorded, and the height n value of the distance measuring device at the moment is recorded;

S7: and (4) placing a new anode: the main controller controls the crown block to convey a new anode to the designated slot position, and the main control module obtains a new anode slot position difference e according to the data measured in the step, so that the system automatically calculates the height d of the new anode to be lowered; lowering the new anode by the height d, and stopping under the new anode; and the slot position clamping fixture fixes the new anode.

in step S7, the "new pole groove head difference" e is calculated by e ═ n-c) - (h-b).

Further, in the step S7. When a new anode is placed in the slot, the required height d of the anode to be lowered is calculated as d-a-e.

further, in the steps S1-S7, the measured parameters a, b, c, d are measured by a displacement sensor of the anode lifting mechanism; the parameters h and n are obtained by measuring through a measuring rod stroke metering device in the anode measuring mechanism.

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

(1) According to the intelligent pole-changing measuring system device for electrolytic aluminum, disclosed by the invention, the PLC is adopted for automatic control in the device, an operator only needs to move the operating device on the console, and the grabbing, measuring and placing of the device are automatically adjusted, measured and placed by the PLC automatic control system, so that the manpower is effectively liberated, and the error is reduced.

(2) the core of the intelligent pole-changing measuring system device for electrolytic aluminum adopts a double-anode synchronous mode, and a multifunctional crown block is provided with a grabbing device with two anode lifting mechanisms as a group, so that the measuring efficiency can be effectively improved, the measuring stroke is reduced, and the measuring precision is effectively improved.

(3) According to the intelligent pole-changing measuring system device for electrolytic aluminum, the measuring system adopts the non-contact distance measuring sensor to obtain the accurate height data of the bottom surface of the anode, so that the problem that in a reference platform measuring method, the measured data is inaccurate due to the fact that slag falls from the reference surface of the platform is solved.

(4) according to the electrolytic aluminum intelligent pole-changing measurement system device and method, due to the fact that the device and the measurement replacement method are automatically controlled by the PLC system, only an operator needs to carry out remote monitoring control on a high-altitude control table or a remote control table, the system can be effectively applied to high-temperature, dust, corrosive gas and high-intensity magnetic field environments of an electrolytic aluminum factory, the operator does not need to enter a severe working condition environment, the application range of the electrolytic aluminum intelligent pole-changing measurement system device is expanded, and the problems that the operator feels uncomfortable in the severe working condition environment are solved.

drawings

FIG. 1 is a schematic diagram of the overall system structure of an intelligent pole-changing measuring device for electrolytic aluminum;

FIG. 2 is a block diagram of an anode measuring mechanism;

FIG. 3 is a schematic view of the construction of the anode lifting device;

FIG. 4 is a system framework diagram of an intelligent pole-changing measurement system for electrolytic aluminum;

FIG. 5 is a simplified structural diagram of step S1 of a method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell;

FIG. 6 is a simplified structural diagram of step S2 of a method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell;

FIG. 7 is a simplified structural diagram of step S3 of a method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell;

FIG. 8 is a simplified structural diagram of step S6 of a method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell;

FIG. 9 is a simplified structural diagram of step S7 of a method for intelligently updating old and new anode blocks in an electrolytic aluminum pre-baking cell.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.