A kind of continuous annealing apparatus that is used for blown aluminium plate
Affiliated technical field
The utility model relates to metal heat treatmet device technique field, and more particularly, the utility model is a kind of continuous annealing apparatus that is used for blown aluminium plate.
Background technology
Blown aluminium plate must carry out anneal to aluminium sheet before inflation, with the material internal stress that each manufacturing procedure such as hot rolling before the elimination aluminium sheet inflation, cold rolling etc. caused, material has enough plasticity when guaranteeing inflation.At present, what the blown aluminium plate annealing device was generally selected for use is common box-annealing furnace, adopt electrically heated, this annealing furnace once bears the aluminium sheet of load quantity, annealing time is more than 12 hours, reach the annealing hardness required value, it is a kind of batch production mode, blown aluminium plate annealing is generally large batch of production operation, workload requires to use many box-annealing furnaces to finish simultaneously, the shortcoming of this annealing furnace is that energy consumption is big, efficient is low, labor strength is big, aluminium sheet is overlapping stacking in stove, exist heat passage inhomogeneously, the annealing hardness value is unstable and can not carry out the defective of the monitoring and measuring of hardness at any time, so can adopt a kind of continuous annealing mode to the annealing expectation of this blown aluminium plate.Seek existing continuous annealing furnace, generally all be continuous annealing at shape such as tubing, band steel etc., this continuous annealing furnace requires different because of the annealing part process, specific aims such as the structure of body of heater, size, type of heating, mode of movement are stronger, can't be applicable to anneal, and a kind of efficient e Foerderanlage that is suitable for carrying this blown aluminium plate can not be provided blown aluminium plate.
Summary of the invention
Have the deficiency that the box-annealing furnace energy consumption is big, efficient is low, annealing quality is poor, the production cycle is long, labor strength is big now in order to overcome, and the inapplicability of existing continuous oven, the utility model provides a kind of continuous annealing apparatus that is used for blown aluminium plate.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of continuous annealing apparatus that is used for blown aluminium plate.
A kind of continuous annealing apparatus that is used for blown aluminium plate has body of heater, heating unit, temperature control unit and passes the circulation at whole furnace chamber top, suspension type device for transporting objects, the extension basket that described e Foerderanlage is arranged by conveyor chain track, conveyor chain and spacing is formed, conveyor chain track part in furnace chamber fixedlys connected with body of heater, hang fixing or ground supports is fixed in the furnace chamber outside part, conveyor chain runs in the guide in the conveyor chain track, hang basket and be suspended on the conveyor chain, spacing can be regulated between the extension basket; The body of heater two ends are provided with upper and lower access bridge.Described heating unit is a natural gas burner, and natural gas burner has 5, is evenly arranged in the body of heater upper side.Described temperature control unit is made up of temperature sensor, Sweet natural gas work output controller; Described body of heater is provided with burner blower, recirculation blower.Described recirculation blower has 5, is evenly arranged in the body of heater top.
Described body of heater length overall 28.2m, the long 22m of hot spots wherein, each 3.1m of bridge up and down, body of heater outer form height 2.4m, wide 1.6m.Described body of heater has the manufacturing cut-off rule, also is provided with cat ladder.
The beneficial effects of the utility model are: the annealing cost of a, individual blown aluminium plate of contrast that cuts down the consumption of energy, and adopting box-annealing furnace is 0.42 yuan/, adopting continuous annealing apparatus is 0.182 yuan/, so it is over half to cut down the consumption of energy; B, annealing quality are stablized vertical being placed on of aluminium sheet and are hung in the basket, utilize the slight bending of self that certain clearance is arranged between the aluminium sheet, under the effect of recirculation blower, aluminium sheet is heated evenly, and have guaranteed that the annealing hardness of each position on every aluminium sheet and the aluminium sheet is consistent; C, the active and effective annealing way of continuous annealing apparatus with short production cycle have reduced annealing time significantly, have shortened the production cycle; D, safety labor-saving A.T.C, and the workman can understand the temperature regime of aluminium sheet on the conveyor chain, avoided scald, the workman need not carry out the concentrated circulation of big batch materials, has alleviated labour intensity e, working efficiency significantly improves.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an annealing furnace agent structure synoptic diagram of the present utility model
Fig. 2 is a vertical view of the present utility model
Fig. 3 is an annealing furnace main body sectional view
Among the figure 1, body of heater 2, conveyor chain track 3, conveyor chain 4, hang basket 5, cat ladder 6, burner blower 7, recirculation blower 8, conveyor chain motor 9, natural gas burner 10, temperature sensor 11, bridge up and down
Embodiment
See accompanying drawing 1~3, a kind of continuous annealing apparatus that is used for blown aluminium plate comprises body of heater 1, heating unit, temperature control unit, device for transporting objects
A: body of heater 1
The body of heater main part is made for making things convenient for body of heater, body of heater divides four sections: upper and lower bridge 11 and the left and right sides two halves section of separating by the manufacturing cut-off rule, make the cut-off rule choice of location and should avoid various evenly distributed blower fans and burner etc., needn't be selected in the central position of body of heater, can be selected in the position about inclined to one side body of heater center 2m, the body of heater wallboard adopts thickness 1.5mm steel plate galvanized, doses lagging material between the inside and outside wall of body of heater.Body of heater length overall 28.2m, the long 22m of hot spots wherein, each long 3.1m of bridge up and down, the outer form height 2.4m of body of heater (1), wide 1.6m, body of heater 1 is provided with the cat ladder 5 of safeguarding usefulness by dress.
Part on the body of heater is arranged under the situation that adopts the Sweet natural gas type of heating, for guaranteeing the needed oxygen of combustion of natural gas, the body of heater below is by adorning two burner blowers and pipe arrangement, for guaranteeing the even of furnace chamber temperature, the body of heater top is evenly distributed by adorning 5 recirculation blowers, recirculation blower power is 5.5kw, and rotating speed is 1440rpm, and air output is 13500-25000m
3/ h, wind direction are downwards by the both sides circulation upwards.
B: heating unit
Heating unit is a natural gas burner, and natural gas burner has 5, be evenly arranged in body of heater one side above, two burner models that are distributed in two ends are SMH-20, other three models are SMH-10.
C: temperature control unit
Temperature control unit is made up of temperature sensor, Sweet natural gas work output controller, and temperature sensor location stretches into the upper and lower that furnace chamber is in material in a side of body of heater, is convenient to detect the heating temperature of material different positions.
D: device for transporting objects
Device for transporting objects is mainly by conveyor chain track 2, conveyor chain 3 and extension basket 4 are formed, conveyor chain track 2 passes whole furnace chamber top, be by closed annular (as accompanying drawing 2), part in furnace chamber is fixedlyed connected with body of heater, part outside furnace chamber hangs fixing or ground supports is fixed, hang to fix and to reduce taking of work-yard, the cross-sectional shape of conveyor chain track 2 is a rectangle, rectangular bottom surface has breach, conveyor chain 3 runs in the guide in the conveyor chain track 2, hang basket 4 and be suspended on the conveyor chain 3, conveyor chain 3 is provided with a lot of hanging points, can hang the spacing of basket 4 according to the different adjustment of blown aluminium plate length specification.Hang basket and be of a size of length * wide * height=1000m * 800mm * 600mm, blown aluminium plate applicable to plurality of specifications, can place 24 of blown aluminium plates for every basket, annealing process requirement according to blown aluminium plate, about 450 ℃ of annealing temperatures, the annealing time of aluminium sheet is by the decision of conveyor chain linear velocity, and conveyor chain 3 is by conveyor chain motor 8 transferring power and regulate linear velocity, general conveyor chain linear velocity is 1.2m/min, annealing time 16 minutes.