A kind of electrode baking forced cooling method and device
The present invention relates to the electrode baking of graphite electrode production field, particularly relate to a kind of electrode baking forced cooling method and device.
In the electrode baking production process, finished the furnace chamber of roasting, need just can go out furnace operating through nature cooling and two cooling stages of pressure cooling.This mainly is that cooling velocity can not be too fast under higher temperature because of roasted product, to prevent that crackle occurring under the chilling condition causes waste product, so a natural cooling process will be arranged when high temperature; If but all be the nature cooling, then cool time will be very long, influence the utilization rate and the production capacity of electrode baking, so naturally cool to certain temperature, when not having the worry that cracks, just can adopt the pressure type of cooling, accelerate the cooling velocity of furnace chamber, with utilization rate, minimizing furnace chamber number, the once investment of saving that improves electrode baking.Thus, rational forced cooling method, production is very important for electrode baking.
Existing electrode baking, the pressure cooling provision that is adopted generally is in the body of heater periphery pressure cooling air channel to be set, and is provided with powerful cooling blower in the porch in air channel.Position corresponding to each furnace chamber smoke evacuation well on the air channel all is provided with air outlet, when a certain furnace chamber has been finished natural cooling, in the time of need forcing to cool off, just couple together with movably being communicated with the smoke evacuation well of cover with air outlet and this furnace chamber, cooling air in the air channel will directly enter the furnace bottom and the hopper checker brick hole of this furnace chamber, accelerate the cooling velocity of this furnace chamber greatly, until the temperature that is cooled to manually to come out of the stove.The shortcoming of this forced cooling method and equipment is: 1, because set cooling air channel is surrounded on the electrode baking periphery, so pipeline is long, drag losses is big, power consumption is big; 2, for cooling air channel can be connected with each furnace chamber of electrode baking, on the air channel, all be provided with an air outlet corresponding to each furnace chamber air draft Jing Chu.Because sealing problem can not solve fully, the air outlet situation of leaking out is very serious; 3, in order to reduce the drag losses of cooling air channel, the Cross section Design of cooling air channel must be bigger, generally all at 0.5～0.7m
2In the scope, the steel that expend are about tens of tons; 4, in order to remedy other the leak out deficiency in draught that is caused, the drag losses that overcomes the air channel on air outlet and the pipeline, the blower fan that is arranged on the air intake vent place generally all adopts big air quantity, high blast, so selected power of fan is very big, cost is very high; 5, because an electrode baking generally all is two flame systems, always there is furnace chamber forcing the state of cooling in one day 24 hours, so removing maintenance, the blower fan of porch, air channel is opening, power consumption is huge, has obviously improved the baked for producing cost; 6, owing to bulky, the surrounding electric poles roaster periphery of cooling air channel, take very big workshop area, even will increase the factory building span for cooling air channel is set specially; 7, the operating personnel in roasting workshop work under very strong fan noise every day, and operating condition is abominable.
Summary of the invention
The present invention be exactly to provide in order to solve the problems of the technologies described above a kind of electrode baking forced cooling method and device, purpose be solve that the cooling air channel pipeline is long, the cross section is big, the steel consumption amount is big, inleakage is big, energy waste is serious, blower fan cost height, power consumption greatly, take the problem that the workshop area is many, fan noise is big, operating condition is abominable.
Be achieved in that a kind of electrode baking forced cooling method for reaching above-mentioned purpose the present invention, comprise the steps: removable cooling device is moved on the gas well mouth of the upstream furnace chamber that needs the cooling furnace chamber, after starting removable cooling device, the hot blast of need cooling furnace chamber furnace bottom is drawn out of via the gas well of upstream furnace chamber, discharge through exhaust outlet, cold wind is that the removable cooling device that the checker brick hole, hopper top from need cooling furnace chamber enters furnace bottom and is arranged on upstream furnace chamber gas well mouth is extracted out.
The back seals gas well mouth and removable cooling device contact position on the described gas well mouth that removable cooling device is moved to the upstream furnace chamber that needs the cooling furnace chamber.
In the described removable cooling device is the small-power blower fan, and the quantitative range of small-power blower fan is 1～10.
Described small-power blower fan has under the environment of high temperature more than 400 ℃ works.
The air quantity scope that described removable cooling device provides is 20000～80000m
Described electrode baking forced cooling method moves removable cooling device after also comprising the steps: to need the gas well mouth of cooling furnace chamber and upstream furnace chamber all to open bell again.
Described removable cooling device is hung by overhead traveling crane on the gas well mouth of upstream furnace chamber of need coolings furnace chamber.
A kind of electrode baking forced cooling device comprises needing cooling furnace chamber, upstream furnace chamber, gas well mouth, wherein at the gas well mouth place of the upstream furnace chamber of the need cooling furnace chamber that will cool off removable cooling device is set.
Be provided with the small-power blower fan in the described removable cooling device.
Described small-power blower fan is the 1-10 platform.
Described removable cooling device wind supply quantity scope is 20000～80000m
Described removable cooling device is provided with exhaust outlet.
The present invention has the following advantages:
1, because cooling device is to be directly installed on the gas well mouth that needs cooling furnace chamber adjacent upstream furnace chamber, there is not ad hoc air channel pipeline, so power consumption is extremely low.
2, need only take seal approach at cooling device and gas well mouth contact position, just can not produce serious air leakage phenomena, save the energy of wasting owing to leaking out greatly.
3, the no cooling air supply pipeline and the big air quantity blower fan of unlatching throughout the year, the once investment that helps saving electrode baking.
4, the ability owing to exhausting blower fan on the cooling device is fully used, so the power of whole cooling device is very little, power consumption is extremely low, meets the recycling economy principle of energy-conserving and environment-protective.
5, saved the area that takies the workshop, dwindled workshop factory building span.
The equipment noise is low when 6, forcing cooling down operation, helps improving operator's environmental condition.
7, the cooling device volume is little, simple in structure, can save equipment investment and maintenance cost.
8, economical and practical, easy to implement.
Description of drawings
Fig. 1 is a cooling device mounting plane schematic diagram of the present invention.
Fig. 2 is a cooling device mounting vertical plane schematic diagram of the present invention.
Among the figure, 1, removable cooling device; 2, need the cooling furnace chamber; 3, upstream furnace chamber; 4, gas well mouth; 5, encapsulant; 6, upstream furnace chamber gas well; 7, cooling device exhaust outlet; 8, checker brick hole.
The specific embodiment
Below embodiments of the invention are described in detail in conjunction with the accompanying drawings, but protection scope of the present invention is not limit by embodiment.
As depicted in figs. 1 and 2, a kind of electrode baking forced cooling method of the present invention, need to comprise the steps: the gas well mouth 4 of cooling furnace chamber 2 and upstream furnace chamber 3 all to open bell, removable cooling device 1 is hung by overhead traveling crane on the gas well mouth 4 of upstream furnace chamber 3 of need coolings furnace chamber 2, removable cooling device 1 is moved to the back seals gas well mouth 4 and removable cooling device 1 contact position on the gas well mouth 4 of the upstream furnace chamber 3 that needs cooling furnace chamber 2, adopt encapsulant 5 to clog, after starting removable cooling device 1, the hot blast of need cooling furnace chamber 2 furnace bottoms is drawn out of via the gas well 6 of upstream furnace chamber 3, discharge through exhaust outlet 7, the direction of arrow among the figure is that hot gas is discharged direction; The negative pressure that its furnace bottom is provided by removable cooling device 1, cold wind are that the removable cooling device 1 that the checker brick hole, hopper top 8 from need coolings furnace chamber 2 enters furnace bottom and is arranged on upstream furnace chamber 3 gas well mouths 4 is extracted out.
In the described removable cooling device 1 is a plurality of small-power blower fans, and the quantitative range of small-power blower fan is 1～10, and the small-power blower fan has under the environment of high temperature more than 400 ℃ works, and the air quantity scope that removable cooling device 1 provides is 20000～80000m
A kind of electrode baking forced cooling method and device, comprise and need cooling furnace chamber 2, upstream furnace chamber 3, gas well mouth 4 and upstream furnace chamber gas well 6, gas well mouth 4 places of cooling off the upstream furnace chamber 3 of furnace chamber 2 at the need that will cool off are provided with removable cooling device 1, removable cooling device 1 is made up of metal shell, deflector and several small-power blower fans, blower fan quantity is the 1-10 platform, and removable cooling device 1 wind supply quantity scope is 20000～80000m
3/ h.Removable cooling device 1 is provided with 2-8 exhaust outlet 7.
The present invention has cancelled the cooling system of forming by around shape cooling air channel and cooling blower, and the method that adopts removable cooling device directly to extract stove wind-heat wind out is forced cooling to the furnace chamber of electrode baking.Make cold wind enter, and flow,, constantly the heat of this furnace chamber is taken out of outside the stove, reach this furnace chamber is forced cooling purpose by the gas well and the removable cooling device of downstream furnace chamber to the furnace bottom of bottom from the hopper checker brick hole on furnace chamber top.Because cooling air inlet is the checker brick hole, hopper top that needs the cooling furnace chamber.Therefore, have only when cooling naturally reaches the hopper checker brick and can not produce the temperature of chilling cracking, could begin to force cooling.Because removable cooling device carries out is to take out hot blast operation, so when just open cold radiator cooler, the wind-warm syndrome of extraction is higher, and safety signs should be set.
The present invention also is applicable to cathode baking furnace and anode-baking furnace.