CN208791706U - A kind of aluminium volume annealing furnace - Google Patents

Abstract

The utility model discloses a kind of aluminium to roll up annealing furnace, including furnace shell, furnace wall, burner, smoke outlet, the burner is mounted in an inclined manner in the left and right side walls of furnace wall, the axis of the burner and horizontal angle are 30 °, left and right side walls is mounted on two rows of burners for being parallel to annealing furnace body length direction, burner in the left and right side walls on sustained height is alternatively arranged, wherein, burner in the left and right side walls on the same cross section of the furnace body is centrosymmetric about the central point of cross section, burner close to the bottom of furnace body tiltedly sprays upward, burner at the top of the furnace body tiltedly sprays downward.The aluminium volume annealing furnace of the utility model, which can be realized, is sufficiently stirred furnace atmosphere, guarantees that in-furnace temperature is uniform, reduces the temperature difference in furnace, and then improves aluminium and roll up product quality.

Description

A kind of aluminium volume annealing furnace

One, technical field

The utility model relates to be related to a kind of aluminium process equipment, in particular to a kind of aluminium rolls up annealing furnace.

Two, background technique

Annealing is the material or workpiece softening made by casting, forging rolling, welding or machining, improves plasticity and toughness, Chemical component is homogenized, removes residual stress, or obtain expected physical property, therefore is also one in aluminium process Common technology.Annealing furnace is process equipment indispensable in annealing processing, and the aluminium after aluminium coil and sheet stack annealing furnace is suitable for rolling is rolled up Material is annealed again to be handled to meet the next step processing technology of aluminium coiled material.Aluminium rolls up annealing treating process and requires furnace gas temperature uniformity High temperature difference is less than or equal to 3 DEG C of scholar.The fuel that current most of aluminium coil and sheet stack annealing furnaces are adopted is from the burner for being installed on annealing furnace sidewall It feeds in furnace, due to the influence of the factors such as material resistance, gas flowing and hot gas floating, high-temperature gas can not be reached under aluminium volume Portion center causes the position heat supply insufficient, in order to compensate for this defect, can only extend the soaking time of annealing.Thus bring Problem is that center and the heat distribution unevenness on periphery, annealing time are too long, and then affect the quality of product, and energy consumption of annealing It is excessively high.

Three, summary of the invention

The purpose of the utility model is to provide a kind of aluminium to roll up annealing furnace, can guarantee that in-furnace temperature is uniform, reduces in furnace The temperature difference, and then improve aluminium and roll up product quality.

The utility model technical solution used for the above purpose is: a kind of aluminium volume annealing furnace, including furnace shell, furnace Wall, burner, smoke outlet, the burner are mounted in an inclined manner in the left and right side walls of furnace wall, the axis and water of the burner The angle of horizontal line is 30 °, and left and right side walls is mounted on two rows of burners for being parallel to annealing furnace body length direction, is located at same height The burner in left and right side walls on degree is alternatively arranged, wherein the burning in the left and right side walls on the same cross section of the furnace body Mouth is centrosymmetric about the central point of cross section, and the burner close to the bottom of furnace body tiltedly sprays upward, close to the furnace body The burner at top tiltedly sprays downward, and the furnace wall has been correspondingly formed flame ejiction opening, and the smoke outlet is located at furnace wall back-end wall Middle part.

Further, the squit hole of the burner is set as 450mm-600mm to the linear distance that aluminium is rolled up.

Further, the fuel of the burner is natural gas or coke-stove gas.

Further, the furnace shell is fire resisting stainless steel.

Further, the furnace wall is ceramic fiber layer.

Further, the external induced-draft fan of the smoke outlet.

The utility model compared with prior art, has the following advantages and beneficial effects: the aluminium volume annealing of the utility model The burner of furnace is arranged by inclined mode, is 30 ° with horizontal angle, the burner on the same cross section of furnace body about The central point of cross section is in center point symmetry, and furnace atmosphere can be sufficiently stirred in the burner symmetrically sprayed, wherein close to furnace body bottom The burner in portion tiltedly sprays upward, and the burner at the top of furnace body tiltedly sprays downward, can be avoided the direct-injection that bottom nozzle rolls up aluminium The phenomenon that causing aluminium to roll up epidermis burning, meanwhile, the injection direction of the burner of adjacent cross sectional intersects, and further enhances along furnace The heat exchange in body length direction reduces the temperature difference in furnace so as to guarantee that in-furnace temperature is uniform, and then improves aluminium and roll up product matter Amount.

Four, Detailed description of the invention

Fig. 1 is the aluminium volume annealing furnace structure schematic diagram of the utility model；

Fig. 2 is the diagrammatic cross-section of the A-A of Fig. 1；

Fig. 3 is the diagrammatic cross-section of the B-B of Fig. 1.

Specific embodiment

Detailed description furtherly is made to the utility model in the following with reference to the drawings and specific embodiments, so as to this field skill Art personnel understand.

As shown in Figure 1-3, a kind of aluminium of the utility model rolls up annealing furnace, including furnace shell 1, furnace wall 2, burner 3, smoke outlet 4, The burner 3 is mounted in an inclined manner in the left and right side walls of furnace wall 2, and axis and the horizontal angle of the burner 3 are 30 °, left and right side walls is mounted on two rows of burners 3 for being parallel to annealing furnace body length direction, the left and right on sustained height Burner 3 on side wall is alternatively arranged, wherein the burner 3 in the left and right side walls on the same cross section of the furnace body is about cross The central point in section is centrosymmetric, and the burner 3 close to the bottom of furnace body tiltedly sprays upward, the burning at the top of the furnace body Mouth 3 tiltedly sprays downward, and the furnace wall 2 has been correspondingly formed flame ejiction opening 5, and the smoke outlet 4 is located in 2 back-end wall of furnace wall Portion.The distributing position of the flame ejiction opening 5 on furnace wall 2 is shown in Fig. 1, the black flame ejiction opening on the wall of left side of getting the bid 5, the black flame ejiction opening 5 in right-side wall is not marked.The aluminium of the utility model rolls up annealing furnace, is located on the same cross section of furnace body Burner 3 about kernel of section point symmetry, furnace atmosphere can be sufficiently stirred in the burner 3 symmetrically sprayed, close to bottom of furnace body Burner 3 tiltedly sprays upward, and the burner 3 at the top of furnace body tiltedly sprays downward, can be avoided the direct-injection that bottom nozzle 3 rolls up aluminium and makes The phenomenon that rolling up epidermis burning at aluminium, meanwhile, the injection direction of the burner 3 of adjacent cross sectional intersects, and further enhances along furnace The heat exchange in body length direction reduces the temperature difference in furnace so as to guarantee that in-furnace temperature is uniform, and then improves aluminium and roll up product matter Amount.

The squit hole of the embodiment of the present invention burner 3 is set as 450mm-600mm to the linear distance that aluminium is rolled up, and is both avoided that Aluminium rolls up surface directly heated the phenomenon that causing epidermis burning, simultaneously as ensure that furnace atmosphere heat exchange is abundant, can increase Aluminium rolls up being heated evenly property, improves heating speed, reduces heating and soaking time.The fuel of the burner 3 uses natural gas or coke Producer gas improves efficiency of combustion.The furnace shell 1 is fire resisting stainless steel, and the furnace wall 2 is ceramic fiber layer, improves heat insulation effect, Reduce heat loss.The flue gas of the external induced-draft fan of the smoke outlet 4, bringing-up section and soaking zone carries out forced fume exhaust using induced-draft fan, The cigarette that two rows burner combustion generates is expelled directly out from the smoke outlet 4 being located in the middle part of 2 back-end wall of furnace wall, is improved heat in furnace and is followed Ring further increases the uniformity of temperature.

Although above-described embodiment is made that detailed description to the utility model, it is only the utility model a part Embodiment, rather than whole embodiments, people can also obtain other implementations according to the present embodiment under the premise of without creativeness Example, these embodiments belong to scope of protection of the utility model.

Claims (6)

1. a kind of aluminium rolls up annealing furnace, including furnace shell, furnace wall, burner, smoke outlet, it is characterised in that: the burner is with inclined side Formula is mounted in the left and right side walls of furnace wall, and the axis of the burner and horizontal angle are 30 °, and left and right side walls is mounted on two Row is parallel to the burner in annealing furnace body length direction, and the burner in the left and right side walls on sustained height is alternatively arranged, In, the burner in the left and right side walls on the same cross section of the furnace body is centrosymmetric about the central point of cross section, leans on The burner of the nearly bottom of furnace body tiltedly sprays upward, and the burner at the top of the furnace body tiltedly sprays downward, and the furnace wall is corresponding It is formed with flame ejiction opening, the smoke outlet is located at the middle part of furnace wall back-end wall.

2. aluminium according to claim 1 rolls up annealing furnace, it is characterised in that: the straight line that the squit hole of the burner to aluminium is rolled up away from From being set as 450mm-600mm.

3. aluminium according to claim 1 rolls up annealing furnace, it is characterised in that: the fuel of the burner is natural gas or coke-oven coal Gas.

4. aluminium according to claim 1 rolls up annealing furnace, it is characterised in that: the furnace shell is fire resisting stainless steel.

5. aluminium according to claim 1 rolls up annealing furnace, it is characterised in that: the furnace wall is ceramic fiber layer.

6. aluminium according to claim 1 rolls up annealing furnace, it is characterised in that: the external induced-draft fan of smoke outlet.