CN86204170U

CN86204170U - Cupola furnace with a wall-movable chamber

Info

Publication number: CN86204170U
Application number: CN 86204170
Authority: CN
Inventors: 向纲玉; 朱松林
Original assignee: MECHANICAL INST HUBEI PROV
Current assignee: MECHANICAL INST HUBEI PROV
Priority date: 1986-06-17
Filing date: 1986-06-17
Publication date: 1987-10-03

Abstract

The utility model discloses a cupola furnace with a wall-movable chamber. The high-temperature zone of the chamber is formed by a fixed wall and an active wall which is hinged with the fixed wall. Fixed wind belts and movable wind belts are respectively positioned between each furnace shell and furnace lining of the fixed wall and the active wall. The two wind belts are respectively communicated with a blast main and the chamber via each air manifold and air port. A cupola furnace adopting the structural style can open the active wall when furnace repair, so not only the condition of the furnace repair is improved, but also the furnace can be conveniently repaired according to the mould plate of the furnace lining, which raises the quality of the furnace repair, and shortens the time of the furnace repair; if the utility model compares with an integral type cupola furnace, the time of repair can be saved one half.

Description

Cupola furnace with a wall-movable chamber

The utility model relates to a kind of improved Metal Melting cupola furnace.

At casting industry, the cupola furnace melting equipment that is absolutely necessary, it generally is made up of shaft, forehearth, furnace bottom, supply air system and feed mechanism, and its shaft contains furnace shell, cupola well, burner hearth, furnace lining and wind band at least.Be positioned at the furnace lining top layer of burner hearth high-temperature zone, because of the oxidation etch is peeled off, so before each blow-on, all need it is repaired, and known burner hearth and wind band are generally circular unitary, when repairing stove, the workman need creep into operation in the stove, the space is narrow and small in the burner hearth, and labor condition is abominable, and the workman is damaged by the inner lining of furnace wall or fallen the accident that piece injures by a crashing object and takes place often.The card waist cupola furnace of Tui Guanging in recent years, though can obtain the advanced index of the low scaling loss of high temperature, because the burner hearth shape is complicated, it is more difficult to repair furnace operating, so that is difficult to assurance and repaiies the stove quality.In order to remedy above-mentioned deficiency, on cupolette, it is the merogenesis one-piece construction that the burner hearth of employing is also arranged, though improved the furnace operating condition of repairing so to a certain extent, but equipment and the workload of mounting or dismounting and upset burner hearth have been increased, increased floor space, and because of its merogenesis position still very heavy, in being difficult to use in or large-scale cupola furnace, so fail to be applied, simultaneously, adopt the cupola furnace of said structure, all be difficult for realization mechanize and repair the stove operation.

The purpose of this utility model is: the shaft to above-mentioned cupola furnace improves, and makes it in assurance normal smelting effect, improves the labor condition of repairing stove, improves to repair the stove quality and repair stove for realization mechanize to create conditions.

The purpose of this utility model realizes in the following manner: cut down one as active edges from the high temperature oxidation district of burner hearth, make it become the Kai Bianshi burner hearth, just constitute the high-temperature zone of burner hearth by fixed edge and the active edges hinged with it, fixedly wind band and movable wind band lay respectively between fixed edge and the active edges furnace shell and furnace lining separately, and two wind bands are connected with blast main, burner hearth respectively by branch airduct, air port separately.When repairing stove, active edges can be opened, the workman only need stand in outside the stove, can repair the furnace lining that opens wide, and can repair stove by the furnace lining template, with the concentricity that guarantees the burner hearth internal diameter and the unanimity of lining thickness, repair the stove quality and be improved thereby make, labor condition is improved, and for realizing that mechanize repaiies stove enough spaces are provided.

Cupola furnace described in the utility model is compared with the monoblock type cupola furnace, when repairing stove at every turn and can save the patcher of half; If compare with the merogenesis one-piece construction, though it is close to repair the stove workload, but this structure can significantly reduce the workload of mounting or dismounting stove, for example: open or adorn the active edges of closing this cupola furnace and only need 1 people operation, can finish in 3～5 minutes, and the dismounting of merogenesis monoblock type cupola furnace just needs 3 people to operate 40 minutes, so adopt this structure can improve 20～40 times of work efficiency.Another effect that this structure is brought is, it is very fast that active edges is opened postcooling, can repair stove in about 1.5～2 hours, the shaft one-piece construction then needs ability cooling in 6～8 hours, thereby the cupola furnace of the Kai Bianshi of having burner hearth described in the utility model can shorten the blowing out cooling period, increase the fusing working hour, thereby labour productivity is improved.

Below with reference to accompanying drawing utility model is described in further detail.

Fig. 1 is a kind of concrete structure figure at the utility model shaft position.

Fig. 2 be Figure 1A to the active edges view.

Fig. 3 is along Figure 1B-B position and the sectional view that active edges is opened.

With reference to each figure, constitute the high-temperature zone of burner hearth (7) by fixed edge (6) and the active edges (11) hinged with it, for make active edges (11) open, adorn close more flexible, also can (4) load onto bearing in the hinged place, fixedly wind band (3) and movable wind band (9) lay respectively between fixed edge (6) and active edges (11) furnace shell (1) and furnace lining (10) separately, and fixedly wind band (3) and movable wind band (9) are connected with blast main (15), burner hearth (7) respectively with separately branch airduct (17), air port (8).Movable wind band (9) and the branch airduct (17) that is communicated with it can be opened or adorn and close with active edges (11), fashionablely will divide airduct (17) to be connected when adorning with blast main (15) with bolt, air port (8) is evenly equipped with the peep hole (2) with air port (8) coaxial line along furnace lining (10) circumference uniform distribution on furnace shell (1).For guaranteeing when working, to be unlikely to outwards runout from the slit between fixed edge (6) and the active edges (11), can stay 20～30 millimeters slit at the two, and in this slit, fill out envelope the joint close filler arranged, it is noted that, refractory materials in order to preparation joint close filler had better not be identical with the refractory materials of furnace lining (10), avoiding the two sintering together, and make active edges (11) be difficult to open.Fixed edge opening (5) and active edges (11) be tetragon, and its upper and lower limit is a hypotenuse, and this hypotenuse and level are 5～6 and spend angles, will have certain self-locking action like this, so that the opening or adorn and close of active edges (11).The axis in the slit, both sides between fixed edge opening (5) and the active edges (11) is respectively two plumb lines, and the horizontal line of two plumb lines is the shaft diameter.In working order down, for guaranteeing fixed edge (6) and the airtight required snap-in force of active edges (11), with screw hoop (14) that fixed edge (6) and the pairing the other end dress of active edges (11) pin jointed end combined pressure is tight, and the idler wheel mechanism (12) that on the active edges (11) of this end, is being connected, its roller (18) rest with the concentric arc track of active edges (11) axis of rotation (13) on, this arc track can be contained in active edges following or more than, when opening active edges (11), just form the supporting of active edges (11) or hang and draw, to overcome the gravitational torque under its cantilever position.The butterfly valve (16) of regulating air output was housed, to satisfy balanced ventilation in stove in airduct (17) respectively at two minutes.

Claims

1, a kind of cupola furnace that is used for smelting metal, its shaft contains furnace shell (1), burner hearth (7), furnace lining (10) at least, cupola well and wind band, the utility model is characterised in that: the high-temperature zone that is made of burner hearth (7) fixed edge (6) and the active edges (11) hinged with it, fixedly wind band (3) and movable wind band (9) lay respectively between fixed edge (6) and active edges (11) furnace shell (1) and furnace lining (10) separately, and fixedly wind band (3) and movable wind band (9) are connected with blast main (15), burner hearth (7) respectively with separately branch airduct (17), air port (8).

2, cupola furnace as claimed in claim 1 is characterized in that: leave 20～30 millimeters slit between fixed edge opening (5) and the active edges (11), and fill out envelope in this slit the joint close filler arranged.

3, cupola furnace as claimed in claim 1 or 2 is characterized in that: fixed edge opening (5) is a tetragon with active edges (11), and its upper and lower limit is 5～6 degree angles with level respectively.

4, cupola furnace as claimed in claim 3 is characterized in that: the axis in the slit, both sides between fixed edge opening (5) and the active edges (11) is respectively two plumb lines, and the horizontal line of two plumb lines is the shaft diameter.

5, cupola furnace as claimed in claim 4, it is characterized in that: fixed edge (6) and the pairing the other end dress of active edges (11) pin jointed end combined pressure is tight with encircling bolt (14), and the idler wheel mechanism (12) that on the active edges (11) of this end, is being connected, its roller (18) rest with the concentric arc track of active edges (11) axis of rotation (13) on, this arc track can be contained in active edges (11) following or more than, when opening active edges (11), just form the supporting of active edges (11) or hang and draw.

6, cupola furnace as claimed in claim 1 is characterized in that: the butterfly valve (16) of regulating air output was housed respectively in airduct (17) at two minutes.