CN2136444Y - Roundabout crossing bottom ventilated mechanic shaft kiln with rotary support - Google Patents

Abstract

The utility model provides a roundabout crossing bottom ventilated mechanic shaft kiln with rotary support, which is an improvement of original rotary bearing mechanical vertical kilns. The sealing structure and the ventilation type of the rotary bearing are mainly improved; a sealing member is additionally arranged on the inner and the outer rings of the rotary bearing; the sealing effect is raised, the temperature of the rotating part in the furnace is reduced from the 300DEG. C to 60DEG. C or so. The improvement of the utility model improves the working conditions of each component of the rotating part in the furnace; a large quantity of powder dust of the rotating part in the furnace is carried away; thereby, the working environment of the furnace is improved, and the service life of the furnace is increased.

Description

Roundabout crossing bottom ventilated mechanic shaft kiln with rotary support

The utility model relates to a kind of cement furnace equipment, especially a kind of mechanical vertical kiln of producing cement.

At present in the manufacture of cement industry, various stoves are all being brought in constant renewal in the replacement, especially middle-size and small-size manufacture of cement factory generally uses mechanized cement shaft kiln, generally use aborning as the tower mechanized cement shaft kiln of revolution that occurs in recent years, result of use is also better, but yet there is shortcoming in it, it mainly is this cement in vertical kiln substructure, especially its pivoting support (about 200 ℃～300 ℃) work at high temperature, easy expanded by heating and make steel ball rotate dumb or do not rotate, make pivoting support be extruded very soon and damage like this, do not resolve because of the sealing problem between inboard wall of furnace body and its underpart rotation again, cause a large amount of dust to fly out, often pivoting support and travelling gear (open type transmission) have all been covered, so that can't rotate, more can't apply oil, because the existence of these two problems and service life of having increased maintenance load greatly and having reduced stove.

The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art part it to be transformed, mainly be to have improved the draft type in the stove and the hermetically-sealed construction of pivoting support, especially draft type in the stove is changed into traffic circle bottom draft type, this draft type has obtained beyond thought effect.

Task of the present utility model realizes as follows, it mainly is to the sealing means of the pivoting support of this stove and the improvement of draft type thereof, on the internal diameter of on the pivoting support inner ring external diameter and outer ring, open a narrow groove from the near-end of ball, it is fixing that of pure wool sealing ring is put into narrow groove, make in its free-end blocks, gap between the outer ring, seal, while respectively has an equally distributed circle screwed hole in the lower surface of the outer ring of pivoting support and the upper surface of inner ring, be fixed with one group of sealing gasket of forming by different materials with sunk screw, its free-end shelters from the gap between the supporting Internal and external cycle respectively, plays the second road sealing function.Be one airduct respectively to be installed in addition in stove bottom two sides, after wind is fed from a side air inlet pipe, toroidal cavity by rotating part in the stove, exhaust duct from the another side under the blast effect is discharged, again the wind of discharging is fed from the stove bottom, wind is when annular cavity passes through like this, not only taken away a large amount of dust in it, and played cooling effect, cavity temperature reduces greatly in making, reduce to about 60 ℃ from 300 ℃, this has improved the working environment of each parts of rotating part in the stove greatly, and pivoting support can run well at a lower temperature, does not expand, do not generate heat, thereby improved its service life, simultaneously owing to adopted cross ventilation mode, Uniform Ventilation, reduce coal consumption, be lower than 30～40% of national standard.

Description of drawings:

Fig. 1 is external form figure of the present utility model.

Fig. 2 is a lower junction composition of the present utility model.

Fig. 3 is a pivoting support structure chart of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, as shown in Figure 1, 2, it mainly comprises what tower double-edged fine-toothed comb 1, grey iron block 2, jaw 3, kiln body 4, holder comb wheel 5, exhaust duct 6, pinion-gearing 7, main transmission deceleration device 8, bottom air inlet pipe 9, fixed funnel 10, hopper 11, pivoting support 12, supporting base 13, blast pipe 14 and base 15 etc. were formed; Kiln body 4 is drum shape housings made from steel plate, on its top kiln hood chimney and drawing-in device are arranged, its inwall is fixed with refractory masses and refractory brick, many row's grey iron blocks 2 are arranged at the bottom, be filled with refractory masses between it and kiln wall, be fixed with a circle jaw 3 in its lower section, going to the bottom of kiln body 4 is fixed on the base 15, base 15 usefulness fot screws are installed on the cement collar tie beam, and both sides, jaw 3 bottom respectively are equipped with blast pipe 14 and exhaust duct 6.The tower double-edged fine-toothed comb 1 that is fixed on the holder comb wheel 5 is arranged in the middle of the jaw, holder is combed and is taken turns the outer races that are fixedly connected with pivoting support 12 below 5 with welding or bolt, be fixed on the inside race that is fixed with pivoting support 12 above the following supporting base 13 of base 15, be fixed with hopper 10 and fixed funnel 11 and bottom air inlet pipe 9 below the supporting base 13.Tower double-edged fine-toothed comb 1 is a hollow circular pagoda shape, and many platoon leaders square hole is arranged on the body of the tower, and the equally distributed vertical jaw tooth of a circle is arranged on the tower wall outer lower portion circumference, and its inner ring has a plurality of equally distributed circular holes; Grey iron block 2 is rectangle hollow bricks, and jaw 3 is that the back side is circular arc and the front is the circular arc plate that many vertical jaw teeth are arranged, and the circular hole perpendicular with it all arranged on jaw tooth so that itself and kiln body inwall are fixed with bolt, by the polylith jaw form one circular whole; Holder comb wheel 5 by two-layer annular steel plate be installed in that conical hopper in the two-layered steel plates endoporus and gusset form, have on it with tower double-edged fine-toothed comb 1 on number equates, diameter is identical several circular holes, so that with bolt itself and tower double-edged fine-toothed comb 1 are fixed, are welded with polylith vertical strengthening ribs plate between the levels annular slab; Pinion-gearing 7 comprises power transmission shaft, pinion, bearing and shaft coupling; Main transmission deceleration device 8 comprises worm gear, worm reducer, motor and underframe thereof; Fixed funnel 10 is conical funnels made from steel plate, its back side is welded with the polylith triangle along circumference and strengthens gusset, the gusset back side is fixed with circular steel bushing, the steel bushing external diameter matches with supporting inner ring and supporting base 13 internal diameters, and hopper 11 is to be that conical bottom is columniform compound funnel with the top that steel plate is made; Supporting base 13 is annular plates that boss is arranged, and a plurality of circular holes are arranged on it; Base 15 is annular plates made from steel plate, and a plurality of fot screws hole is arranged on it, and there is the equally distributed circular hole of a circle inboard, and there is a slotted hole that power transmission shaft is installed on the right side, and centre hole of base should be greater than the external diameter of pivoting support outer ring and holder comb wheel; Pivoting support 12 comprises inside race, sealing device, steel ball and outer race, as shown in Figure 3, the cylindrical of outer race is the gear teeth of 14 moduluses, it and pinion, the equally distributed screw hole of one circle is arranged on the lower surface of outer race, the narrow groove of one circle is arranged at the top of its internal diameter, can lay sealing gasket in the groove, the equally distributed screw hole of one circle is arranged on the upper surface of inside race, the narrow groove of one circle is arranged in the bottom of its external diameter, can lay sealing gasket in the groove, sealing device is a two seals, and the first is in supporting, respectively lay an end of a pure wool sealing gasket of annular in the narrow groove of outer race, its free-end is cooperated with the external diameter of outer race internal diameter and inside race is movable mutually respectively, its two the supporting in, on the outer race, the lower surface is fixed with an end of one group of (totally three layers) annular seal pad with sunk screw, its each free-end is cooperated with the outer race internal diameter of supporting and the external diameter activity of inside race respectively, and its fit clearance is 0.5～1mm, and its bottom is pure wool packing ring, the intermediate layer is an asbestos washer, and skin is A ₃The packing ring that steel plate is made; Exhaust duct 6, bottom air inlet pipe 9 and blast pipe 14 all are that round steel pipe is made, blast pipe and exhaust duct are welded in the two sides of kiln body bottom respectively, make between the cavity of rotating part in they and the kiln body and form a spiral-flow type ventilating duct, under the blast effect, discharge from exhaust duct, be connected to bottom air inlet pipe 9, wind is entered in the middle of tower double-edged fine-toothed comb 1 bottom, carry out central ventilation, this bottom cross ventilation mode has significant dedusting cooling-down effect.

The course of work is when main transmission rotates, pinion drives the supporting outer race and rotates, holder comb wheel and tower double-edged fine-toothed comb are rotated together, when the tower double-edged fine-toothed comb rotates, jaw tooth on it and the jaw tooth on the jaw produce relative motion, piece material in the stove enters in the funnel by the oblong aperture on the tower double-edged fine-toothed comb discharges, and bulk materials also enters in the funnel after by the fragmentation of jaw tooth and discharges.

The utility model has the following advantages compared with the prior art: the hermetically-sealed construction that has improved supporting, significant sealing affection, greatly improved the service life of pivoting support, the bottom draft type of this traffic circle not only has the remarkable effect of dedusting cooling, the interior temperature of lower of stove is down to about 60 ℃ from 300 ℃, greatly improve the working environment of stove bottom rotating part workpiece, prolonged the service life of stove, and be conducive to improve the sintering quality of calcining effect and ripe ball.

Claims (3)

1, a kind of pivoting support annular is intersected the mechanical vertical kiln that the bottom ventilates, and it mainly is made up of comb wheel 5, exhaust duct 6, pinion drive 7, main transmission deceleration device 8, bottom air inlet pipe 9, fixed funnel 10, hopper 11, pivoting support 12, supporting base 13, blast pipe 14 and base 15 of tower double-edged fine-toothed comb 1, grey iron block 2, jaw 3, kiln body 4, holder; Body of heater 4 is a drum shape housing, on its top kiln hood chimney and drawing-in device is arranged, and its inwall is fixed with refractory masses and fire brick layer, many row's grey iron blocks 2 are arranged at the bottom, it and tweer are filled with refractory masses, are fixed with a circle jaw 3 in its lower section, and going to the bottom of kiln body 4 is fixed on the base 15; Comb tower double-edged fine-toothed comb 1 on the wheel 5 of the holder of being fixed on is arranged in the middle of the jaw 3, and holder is combed and is fixed with the outer race of pivoting support 12 below the wheel 5, is fixed on the supporting base 13 below the base 15 and is fixed with the pivoting support inside race, and supporting base 13 bottoms are fixed with hopper 11; Tower double-edged fine-toothed comb 1 is a hollow circular pagoda shape, and many platoon leaders square hole is arranged on the body of the tower, and the equally distributed vertical jaw tooth of a circle is arranged on the tower wall outer lower portion circumference, and its inner ring has a plurality of equally distributed circular holes; Grey iron block 2 is rectangle hollow bricks, and jaw 3 is that the back side is arc-shaped surface, and there is the circular arc plate of several vertical jaw teeth the front, and perpendicular circular hole is all arranged on the jaw tooth, forms a whole jaw of circle by the polylith jaw; Holder comb wheel 5 is made up of two-layer annular steel plate and the conical hopper and the gusset that are installed in the two-layer annular steel plate endoporus, its upper strata have with tower double-edged fine-toothed comb 1 on number equates, diameter is identical several circular holes, fixed funnel 10 is conical funnels, its back side is welded with the polylith triangle along circumference and strengthens gusset, the gusset back side is fixed with circular steel bushing, and the external diameter of steel bushing matches with supporting inner ring and supporting base 13 internal diameters; Pinion-gearing 7 comprises power transmission shaft, pinion, bearing and shaft coupling; Main transmission deceleration device 8 is made up of worm type of reduction gearing and motor and underframe thereof; Fixed funnel 10 is conical hoppers; Hopper 11 is that top is that conical bottom is the compound funnel of cylindrical composition; Supporting base 13 is annular plates that boss is arranged, and several circular holes are arranged on it; Base 15 is annular plates, and several fot screw holes are arranged on it, and inboard also have one to enclose equally distributed circular hole, and there is a slotted hole on the right side; The both sides, jaw 3 bottom that are characterised in that of the present utility model also are equipped with blast pipe 14 and exhaust duct 6, and both all partly communicate with the stove internal cavity, constitute the eddy flow air channel; Bottom ventilation ducts 14 fixing on the hopper 11 communicates with tower double-edged fine-toothed comb 1 bottom is middle; Pivoting support 12 comprises inside race, sealing device, steel ball and outer race, the cylindrical of outer race is the gear teeth of 14 moduluses, the equally distributed screw hole of one circle is arranged on its lower surface, the narrow groove of a circle is arranged at Jing top within it, the equally distributed screw hole of one circle is arranged above the inside race, the narrow groove of one circle is arranged in the bottom of its external diameter, in the narrow groove of inner and outer race, respectively lay the pure wool sealing gasket of an annular, the one end is fixed in the groove, and its free-end cooperates with the external diameter of outer race internal diameter and inside race is movable respectively; Upper and lower end face in the inner and outer race of supporting is fixed with an end of three layers of annular seal pad with sunk screw, its other end respectively with movable cooperation of external diameter of the outer race internal diameter and the inside race of supporting; Make pinion and the gears engaged that supports outer race, base 15 usefulness fot screws are fixed on the collar tie beam.

2, ventilating machinary shaft kiln bottom pivoting support annular according to claim 1 is intersected, it is characterized in that: the three-layer sealed circle in the described pivoting support 12, its bottom are pure wool seal washer; The intermediate layer is an asbestos washer; Skin is A ₃The packing ring that steel plate is made.

3, the mechanical vertical kiln that ventilates according to the said pivoting support annular of claim 1 intersection bottom, it is characterized in that: the packing ring that three layers of annular seal pad on the described pivoting support 12, its skin are made with steel plate is 0.5～1mm with the fit clearance of the external diameter of the outer race internal diameter of supporting and inside race respectively.

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