CN106400054A - Cathode assembling preheating station - Google Patents
Cathode assembling preheating station Download PDFInfo
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- CN106400054A CN106400054A CN201610466874.5A CN201610466874A CN106400054A CN 106400054 A CN106400054 A CN 106400054A CN 201610466874 A CN201610466874 A CN 201610466874A CN 106400054 A CN106400054 A CN 106400054A
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- cathode
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- cathode block
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
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- Engineering & Computer Science (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Discharge Heating (AREA)
Abstract
Disclosed is a cathode assembling preheating station. The cathode assembling preheating station comprises a frame body, a control system, platform trolleys, a heat preservation protective cover, heating electrodes, a heating transformer, a high-voltage circuit breaker and a circulation water cooling system. A track is arranged on the ground outside a gantry frame, and the platform trolleys are arranged at the two ends of the track separately. A PLC electric control cabinet controls the platform trolleys to move on the ground track. Each platform trolley is provided with a plurality of sets of cathodic carbon blocks, and each set of cathodic carbon blocks is provided with steel bars. The heating electrodes are distributed at the two sides and the middle position of the gantry frame, and are matched with the cathodic carbon blocks on the platform trolleys in number. Each set of cathodic carbon blocks is correspondingly provided with five sets of heating electrodes, and the PLC electric control cabinet is used for controlling the high-voltage circuit breaker to be powered up. High tension electricity can be provided for the heating electrodes through the heating transformer, so that cathode preheating is realized. By means of the cathode assembling preheating station, six sets of combined graphite cathodic carbon blocks and a steel bar assembly can be heated simultaneously, low temperature stage and high temperature stage heating and heat preservation are available, the cathode iron and carbon voltage drop can be effectively lowered, aluminum electrolysis DC power consumption is reduced, current efficiency is improved, and the purposes of low cost, low power consumption and high efficiency are achieved.
Description
Technical field
The invention is related to the negative electrode preheating stations before a kind of phosphorus pig iron casting technique for graphite cathode carbon block, and its function is by the negative electrode combining and rod iron after insulation processing, using step mode, rod iron is heated.
Background technology
Aluminum electrolysis industry is one of sizable industry of energy-output ratio.The electrolytic aluminium yield of China ranks the first in the world, and is the consumption big country of aluminum, and therefore aluminum electrolysis industry is badly in need of production technology and the equipment of low energy consumption, to reduce production cost, saves manpower and the national development of energy-conserving and environment-protective requires.
During electrolytic aluminium, need to prepare negative electrode to graphite.In prior art, ramming method is usually used.If adding ferrophosphorus using between rod iron and cathode block, it is necessary for cathode block is preheated.This technique can effectively increase the problem at electrolytic aluminium efficiency bottom in prior art, has the effect reducing cathode block pressure drop；Efficient energy-saving.In order to realize the enforcement of this advanced technologies, need to design a kind of cathode assembling preheating station, cathode block is heated, with the technique realizing cathode block casting ferrophosphorus.The research and development of this cathode assembling preheating station, meet the call that national energy-saving reduces discharging instantly.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides the cathode assembling preheating station being applied to brand-new technological requirement.
The purpose of the invention is achieved through the following technical solutions：Cathode assembling preheating station it is characterised in that：Including chassis body, control system, platform dolly, insulated protective covering, heating electrode, heating transformer, primary cut-out, cooling circulating water system；
Described chassis body adopts gantry frame, is provided with hoisting mechanism and air lifter on gantry frame；
Described control system includes operating desk, PLC electrical control cubicles；Operating desk is located at the side of gantry frame, and PLC electrical control cubicles are close to gantry frame；
Track is arranged on the outside ground of gantry frame, track is respectively arranged at two ends with platform dolly, installs laser range sensor in orbit, is walked by PLC electrical control cubicles control platform dolly on ground rail；Some groups of cathode blocks are equipped with each platform dolly, every group of cathode block is provided with two grooves, place 2 rod irons, preset clearance in the middle of adjacent 2 rod irons in each groove, in the middle of rod iron and cathode block, do insulation processing；
Described heating distribution of electrodes is in gantry frame both sides and centre position, match with the cathode block quantity on platform dolly, every group of cathode block is correspondingly arranged 5 groups of heating electrodes, described heating electrode drives lifting by air lifter, PLC electrical control cubicles control air lifter action, and then realization heating electrode is clamped with rod iron or unclamps；Control primary cut-out energising by PLC electrical control cubicles, heated transformer provides high-tension electricity for heating electrode, realize negative electrode preheating；
Described insulated protective covering is arranged on gantry frame, lifting is driven by hoisting mechanism, it is completely disposed in gantry frame when platform dolly moves to, PLC electrical control cubicles control hoisting mechanism to drive insulated protective covering to fall, constitute an airtight space with platform dolly, it is provided with temperature sensor with rod iron, the corresponding position of cathode block inside insulated protective covering, for gathering the temperature of rod iron and cathode block；
Described cooling circulating water system includes water pump, pressure sensor, temperature sensor, flowmeter, control valve and cooling line, described cooling line is distributed on the insulated protective covering of gantry frame, and be connected with heating electrode, pressure sensor, temperature sensor and flowmeter are provided with cooling line, control cooling water flow that the heating electricity level of preheating station and cable are cooled down by PLC electrical control cubicles.
6 groups of cathode blocks are placed on each platform dolly, every group of cathode block arranges 4 rod irons altogether, every group of cathode block after assembling is correspondingly arranged 5 groups of heating electrodes.
A kind of using method of aforesaid cathode assembling preheating station, its step is as follows：
1）Cathode block is put on 1 platform platform truck, cathode steel bar is assembled with cathode block, in rod iron and cathode block central filler insulating materials；
2）Cathode assembling preheating station is entered by PLC electrical control cubicles control platform car, is completely disposed in gantry frame when platform dolly moves to, put down insulated protective covering, cylinder operation, rod iron is clamped by gantry frame both sides heating electrode；Rod iron on cathode block is compressed by the heating electrode in the middle of gantry frame, forms current loop；
3）Start heating schedule, control system, according to default heating-up temperature, preheats to cathode block and cathode steel bar；After the completion of preheating, heating transformer has a power failure automatically, and heating electrode opens, and protective cover rises, and platform truck leaves back initial position, another platform truck is sailed into, starts subsequent cycle.
Described step 3）Heating process in, gather rod iron and cathode block temperature by PLC electrical control cubicles, when rod iron and cathode block temperature reach temperature threshold values, control transformer on/off electricity.
The beneficial effect of the invention：The invention adopts such scheme, its design concept be by the cathode block combining and rod iron after insulation processing, both sides clamp rod iron with middle heating electrode under the drive of cylinder, so that it is contacted, by transformer-supplied, heat electrode and constitute loop with rod iron through transformer, now rod iron becomes resistance, rod iron is preheated, preheating cathode carbon block after-pouring ferrophosphorus；This cathode assembling preheating stations can heat 6 groups of graphite cathode carbon blocks combining and rod iron assembly simultaneously, and point low-temperature zone and two sections of high temperature section heat, are incubated.Within 14%, after preheating, the cathode block of casting effectively reduces negative electrode iron carbon pressure fall to furnace atmosphere Control for Oxygen Content, reduces aluminium electroloysis direct current consumption, improves current efficiency, and product qualified rate reaches more than 99%, reaches low cost, low power consumption, efficient purpose.
Brief description
Fig. 1 is the structural representation of the invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Specific embodiment
Cathode assembling preheating station, as shown in figure 1, include chassis body, control system, platform dolly 7, insulated protective covering 3, heating electrode 11, heating transformer 5, primary cut-out 15, cooling circulating water system 1.
Chassis body adopts gantry frame 4, is provided with hoisting mechanism 12 and air lifter 13 on gantry frame 4.
Described control system includes operating desk 9, PLC electrical control cubicles 6；Operating desk 9 is located at the side of gantry frame 4, and PLC electrical control cubicles 6 are close to gantry frame.
Track is arranged on the outside ground of gantry frame 4, track is respectively arranged at two ends with platform dolly 7, installs laser range sensor in orbit, is walked by PLC electrical control cubicles 6 control platform dolly 7 on ground rail；6 groups of cathode blocks 8 are equipped with each platform dolly 7, cathode block 8 is provided with two grooves, place 2 rod irons 10 in each groove, the middle preset clearance of adjacent 2 rod irons 10, does insulation processing in the middle of rod iron 10 and cathode block 8.
Heating electrode 11 is distributed in both sides and the centre position of gantry frame 4, match with the cathode block quantity on platform dolly 7, every group of cathode block 8 is correspondingly arranged 5 groups of heating electrodes 11, as shown in the figure, in this example, 6 groups of heating electrodes are placed in the both sides of gantry frame 4 and centre position respectively, heating electrode 11 drives lifting by air lifter 13, air lifter includes cylinder, pneumatic operated valve and three linked piece, heating electrode is connected with the cylinder rod of air lifter, PLC electrical control cubicles control air lifter action, under the drive of air lifter cylinder rod, heating electrode 11 is realized the clamping with rod iron 18 or is unclamped.Control primary cut-out 15 break-make, heated transformer 5 and cable to provide high-tension electricity for heating electrode 11 by PLC electrical control cubicles 6, realize negative electrode preheating.
Insulated protective covering 3 is arranged on gantry frame 4, lifting is driven by hoisting mechanism 12, it is completely disposed in gantry frame 4 when platform dolly 7 moves to, PLC electrical control cubicles 6 control hoisting mechanism 12 to drive insulated protective covering 3 to fall, constitute an airtight space with platform dolly 7, it is provided with temperature sensor in insulated protective covering 3 inner side with rod iron, the corresponding position of cathode block, for gathering the temperature of rod iron and cathode block.
Cooling circulating water system 1 includes water pump, pressure sensor, temperature sensor, flowmeter, control valve and cooling line, cooling line is distributed on the insulated protective covering 3 of gantry frame, and be connected with heating electrode 12, pressure sensor, temperature sensor and flowmeter are provided with cooling line, control cooling water flow by PLC electrical control cubicles 6, the heating electricity level 11 and cable of preheating station is cooled down.Prevent heating-up temperature high electrode from melting, the cooling water in cooling line is softened water or distilled water, without any impurity, non-conductive.
The using method of this cathode assembling preheating station, its step is as follows：
1）Cathode block is put on 1 platform platform truck, cathode steel bar is assembled with cathode block, in rod iron and cathode block central filler insulating materials；
2）Cathode assembling preheating station is entered by PLC electrical control cubicles control platform car, is completely disposed in gantry frame when platform dolly moves to, puts down insulated protective covering, the cylinder action of air lifter, rod iron is clamped by the heating electrode of gantry frame both sides；In the middle of gantry frame, heating electrode, by two rod iron compressions of cathode block, forms current loop；
3）Start heating schedule, control system, according to default heating-up temperature, preheats to cathode block and cathode steel bar；The whole work period is usually 2-3 hour, different according to the different size cathode block heat time, after the completion of preheating, heating transformer has a power failure automatically, and heating electrode opens, and protective cover rises, initial position left back by platform truck, and another platform truck is sailed into, starts subsequent cycle；（After cathode block and rod iron are placed on a chassis by employee by technological requirement, operation chassis, automatically into preheating station, after completing a heating cycle, pours ferrophosphorus, and two car alternations are time-consuming）
In step 3）Heating process in, gather rod iron and cathode block temperature by PLC electrical control cubicles, when rod iron and cathode block temperature reach temperature threshold values, control transformer to lead to/have a power failure.
Claims (4)
1. cathode assembling preheating station it is characterised in that：Including chassis body, control system, platform dolly, insulated protective covering, heating electrode, heating transformer, primary cut-out, cooling circulating water system；
Described chassis body adopts gantry frame, is provided with hoisting mechanism and air lifter on gantry frame；
Described control system includes operating desk, PLC electrical control cubicles；Operating desk is located at the side of gantry frame, and PLC electrical control cubicles are close to gantry frame；
Track is arranged on the outside ground of gantry frame, track is respectively arranged at two ends with platform dolly, installs laser range sensor in orbit, is walked by PLC electrical control cubicles control platform dolly on ground rail；Some groups of cathode blocks are equipped with each platform dolly, every group of cathode block is provided with two grooves, place 2 rod irons, preset clearance in the middle of adjacent 2 rod irons in each groove, in the middle of rod iron and cathode block, do insulation processing；
Described heating distribution of electrodes is in gantry frame both sides and centre position, match with the cathode block quantity on platform dolly, every group of cathode block is correspondingly arranged 5 groups of heating electrodes, described heating electrode drives lifting by air lifter, PLC electrical control cubicles control air lifter action, and then realization heating electrode is clamped with rod iron or unclamps；Control primary cut-out energising by PLC electrical control cubicles, heated transformer provides high-tension electricity for heating electrode, realize negative electrode preheating；
Described insulated protective covering is arranged on gantry frame, lifting is driven by hoisting mechanism, it is completely disposed in gantry frame when platform dolly moves to, PLC electrical control cubicles control hoisting mechanism to drive insulated protective covering to fall, constitute an airtight space with platform dolly, it is provided with temperature sensor with rod iron, the corresponding position of cathode block inside insulated protective covering, for gathering the temperature of rod iron and cathode block；
Described cooling circulating water system includes water pump, pressure sensor, temperature sensor, flowmeter, control valve and cooling line, described cooling line is distributed on the insulated protective covering of gantry frame, and be connected with heating electrode, pressure sensor, temperature sensor and flowmeter are provided with cooling line, control cooling water flow that the heating electricity level of preheating station and cable are cooled down by PLC electrical control cubicles.
2. cathode assembling preheating station according to claim 1 it is characterised in that：6 groups of cathode blocks are placed on each platform dolly, every group of cathode block arranges 4 rod irons altogether, every group of cathode block after assembling is correspondingly arranged 5 groups of heating electrodes.
3. a kind of using method of cathode assembling preheating station is it is characterised in that step is as follows：
1）Cathode block is put on 1 platform platform truck, cathode steel bar is assembled with cathode block, in rod iron and cathode block central filler insulating materials；
2）Cathode assembling preheating station is entered by PLC electrical control cubicles control platform car, is completely disposed in gantry frame when platform dolly moves to, put down insulated protective covering, cylinder operation, rod iron is clamped by gantry frame both sides heating electrode；Rod iron on cathode block is compressed by the heating electrode in the middle of gantry frame, forms current loop；
3）Start heating schedule, control system, according to default heating-up temperature, preheats to cathode block and cathode steel bar；After the completion of preheating, heating transformer has a power failure automatically, and heating electrode opens, and protective cover rises, and platform truck leaves back initial position, another platform truck is sailed into, starts subsequent cycle.
4. the using method of cathode assembling preheating station according to claim 3 is it is characterised in that described step 3）Heating process in, gather rod iron and cathode block temperature by PLC electrical control cubicles, when rod iron and cathode block temperature reach temperature threshold values, control transformer on/off electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466874.5A CN106400054B (en) | 2016-06-24 | 2016-06-24 | Cathode assembling preheating station |
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| CN201610466874.5A CN106400054B (en) | 2016-06-24 | 2016-06-24 | Cathode assembling preheating station |
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| CN106400054B CN106400054B (en) | 2018-10-12 |
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| CN201065437Y (en) * | 2007-06-20 | 2008-05-28 | 中国铝业股份有限公司 | Temperature control device for electrolysis bath binding groove cathode carbon block heating system |
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| CN104818497A (en) * | 2015-04-17 | 2015-08-05 | 郑州经纬科技实业有限公司 | Electrolytic aluminum cathode carbon block preheating device and application method thereof |
| CN204608178U (en) * | 2015-04-17 | 2015-09-02 | 郑州经纬科技实业有限公司 | Electrolgtic aluminium cathode carbon pieces primary heater unit |
| CN205241806U (en) * | 2015-11-23 | 2016-05-18 | 中冶天工集团有限公司 | Quick heating device is used in equipment of aluminium cell cathode carbon block |
| CN205241801U (en) * | 2015-11-04 | 2016-05-18 | 内蒙古风光源节能环保科技有限公司 | Advance cathode carbon block and rod iron preheating device |
| CN105624730A (en) * | 2016-03-14 | 2016-06-01 | 中冶天工集团有限公司 | Rapid heating method for assembling of aluminum electrolytic cell cathode carbon block |
| CN205710953U (en) * | 2016-06-24 | 2016-11-23 | 沈阳汇丰机械有限公司 | Cathode assembling preheating station |
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2016
- 2016-06-24 CN CN201610466874.5A patent/CN106400054B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201065437Y (en) * | 2007-06-20 | 2008-05-28 | 中国铝业股份有限公司 | Temperature control device for electrolysis bath binding groove cathode carbon block heating system |
| CN102234819A (en) * | 2011-08-04 | 2011-11-09 | 中国铝业股份有限公司 | Preheating starting method for aluminium electrolysis cell |
| CN102419088A (en) * | 2011-12-09 | 2012-04-18 | 云南铝业股份有限公司 | Graphite cathode carbon block preheating equipment capable of continuously heating in reciprocating mode |
| CN202705503U (en) * | 2012-04-12 | 2013-01-30 | 七冶炉窑建筑工程有限责任公司 | Assembling heating cover for cathode carbon blocks |
| CN103866349A (en) * | 2014-03-07 | 2014-06-18 | 郑州发祥铝业有限公司 | Cathode block heating device and assembling method of cathode block and cathode steel bar |
| CN104818497A (en) * | 2015-04-17 | 2015-08-05 | 郑州经纬科技实业有限公司 | Electrolytic aluminum cathode carbon block preheating device and application method thereof |
| CN204608178U (en) * | 2015-04-17 | 2015-09-02 | 郑州经纬科技实业有限公司 | Electrolgtic aluminium cathode carbon pieces primary heater unit |
| CN205241801U (en) * | 2015-11-04 | 2016-05-18 | 内蒙古风光源节能环保科技有限公司 | Advance cathode carbon block and rod iron preheating device |
| CN205241806U (en) * | 2015-11-23 | 2016-05-18 | 中冶天工集团有限公司 | Quick heating device is used in equipment of aluminium cell cathode carbon block |
| CN105624730A (en) * | 2016-03-14 | 2016-06-01 | 中冶天工集团有限公司 | Rapid heating method for assembling of aluminum electrolytic cell cathode carbon block |
| CN205710953U (en) * | 2016-06-24 | 2016-11-23 | 沈阳汇丰机械有限公司 | Cathode assembling preheating station |
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