CN2526297Y

CN2526297Y - Piano key type buffer air lock device blanking bucket

Info

Publication number: CN2526297Y
Application number: CN 01250747
Authority: CN
Inventors: 孟雪松
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-20
Filing date: 2001-09-20
Publication date: 2002-12-18
Anticipated expiration: 2011-09-20

Abstract

The utility model relates to a piano key type buffer air lock device blanking bucket, in particular to the improvement for the coal blanking bucket used in the heat engine plant, which solves the problem that: the dust waves to pollute the environment, which is uneasy for maintenance. The step shape upper and lower, left and right supporting blocks arranged on the internal wall of the prior drum body make one group or multi groups of piano key type buffer air lock device stably limited. A frame is positioned around each group of air lock device, and one side of the U shape long frame is provided with a shaft, and the shaft is provided with one pair or multi pairs of shaft sleeves. A V shape double-turning spring is arranged between each pair of shaft sleeves, and the two ends of the V shaped double-turning spring are respectively inserted under the moveable flat steel in the two U shape grooves, and using the nut on the adjusting bolt for locking. Rotating the adjusting bolt can adjust the torsional moment of the V shape double-turning spring. Each shaft sleeve is provided with a turning plate. The baffle is connected with the internal wall of the drum body. The positioning mechanism positions and locks the upturning plate, and thus prevents the dust from leaking from the non-opening turning plate, thereby making maintenance safe and convenient.

Description

Piano type buffering flapper material-falling hopper

Technical field

The utility model relates to piano type buffering flapper material-falling hopper, the particularly improvement of thermal electric generation station-service coal material-falling hopper.

Background technology

At present the firepower electricity send out factory with coal in course of conveying usually in material-falling hopper is delivered to coal bunker, overflow in material-falling hopper in order to prevent dust, generally all with the material-falling hopper of being furnished with flapper.Two kinds of flappers commonly used: a kind of is weight hammer type turnover panel flapper, generally is installed in the hopper bottom, and the opening section of whole hopper bottom under the weight effect, is realized switch with a turnover panel.Axle fixedly fuses with turnover panel, and the hopper outside is stretched out at the axle two ends, and respectively by the bearing chamber anchor shaft, an end of axle is all wired up by bearing chamber, and the other end stretches out bearing chamber, and is connected with a stock.On this stock, is furnished with movably weight, to regulate turnover panel opening and closing etc.; Another kind of weight hammer type buffering flapper, it is mounted to V-shape by two turnover panels, and every turnover panel does not only depend on weight to adjust that it is stressed, and is furnished with stage clip at its back side, to support turnover panel.More than two kinds of flappers after turnover panel is opened, the cross section that material falls is 30% to 50% of an opening section, causes upper and lower exposed the ganging up in sizable cross section, causes dusty gas outwards elegant, serious environment pollution influences operator ' s health.For preventing that axle by dust pollution, generally also is welded with a baffle plate on the hopper inwall, whole axle is all sheltered from.

Summary of the invention

The utility model mainly solves prior art and has the elegant contaminated environment of dust, makes improvements and a kind of piano type buffering flapper material-falling hopper is provided.Be convenient to change internals for maintaining easily in addition, shorten the period of inspection and repair, make upwards upset and be located pinning of baffle plate with detent mechanism.

Piano type buffering flapper material-falling hopper, mainly comprise the oblong cylindrical shell, be provided with plate washer, axle and turnover panel in it, it is characterized in that described cylinder inboard wall is provided with upper support piece, left and right sides back-up block and lower support piece, be equipped with one or more groups piano type buffering flapper on it.The periphery of every group of piano type buffering flapper is a quadra, and it is the U-shaped frame that a long limit is arranged in each framework, is being provided with one near this U-shaped frame one side, and its two ends are separately fixed on left frame and the left frame.On this axle, can lay one or more pairs of axle sleeves, between each is to axle sleeve, be provided with a torsion spring, can be V-shape, its two end insert respectively be provided with in the two U type grooves that U type scuncheon offers a mobilizable band steel below, and be fixed with the nut on the set screw.One turnover panel is welded on a pair of axle sleeve, and supports by the coupling end of a V-type torsion spring.

Above-mentioned material-falling hopper is that described upper support piece, left and right sides back-up block and the lower support piece that is fixed on the cylinder inboard wall can be step, so that piano type buffering flapper is firmly limited.

Above-mentioned material-falling hopper, its baffle plate is fixed on the cylinder inboard wall by folding.Weld a plurality of gussets at this baffle plate by the back side of cylinder inboard wall, come the degree of dip of positioning baffle with this; Baffle plate is upwards after the upset, available one be located at cylindrical shell both sides outer wall on the upper side the gear shaft in the detent mechanism at position be located pinning.

Aforesaid material-falling hopper, its detent mechanism by a positioning seat and in the stage clip and gear shaft, dowel bolt, the telescopic that are provided with form, respectively with being threaded, during normal condition, gear shaft stretches in the cylindrical shell between dowel bolt and positioning seat, telescopic and the gear shaft.

Piano type that the utility model provides buffering flapper material-falling hopper is fallen on the turnover panel when containing dust solid material (as coal), and when its weight and impulsive force acted on power on the turnover panel greater than a V-type torsion spring, turnover panel was opened material and fallen.Even if no material or a small amount of material can not make this turnover panel open on other turnover panels in same framework, thereby reduce because material falls the dust that produces in the process and outwards overflows from this turnover panel, can obviously reduce dust pollution.

Since the upper support piece, left and right sides back-up block, and the lower support piece can be designed to step, and the piano type buffering flapper on it is firmly limited.

Because the baffle plate in the cylindrical shell is connected with cylinder inboard wall by folding, with its upwards upset, convenient for maintaining is changed its internals during maintenance.Particularly adopt detent mechanism resupinate baffle plate location can be pinned, safer being convenient to safeguarded.

Description of drawings

Fig. 1 is the vertical cross-sectional schematic of piano type buffering flapper material-falling hopper structure;

Fig. 2 schemes to looking (left side is looked) for the H of Fig. 1;

Fig. 3 is that the K of Fig. 1 is to (tiltedly) view;

Fig. 4 is the B-B cutaway view of Fig. 3;

Fig. 5 is that semisectional view amplifies in the I portion of Fig. 2;

Fig. 6 is the A-A cutaway view of Fig. 3;

The specific embodiment

By Fig. 1, Fig. 2, Fig. 4 as seen, the utility model piano type buffering flapper material-falling hopper, the square tube 1, the baffle plate 3 that mainly comprise material-falling hopper, axle 20 and turnover panel 22, the upper support piece 5 that newly is provided with in its cylindrical shell 1, left and right sides back-up block 6, lower support piece 7 can be processed into step, link to each other with cylindrical shell 1 inwall respectively with screw (or welding), the piano type buffering flapper that is equipped with on the aforesaid back-up block is firmly limited.

By Fig. 2 and Fig. 3 as seen, one or more groups piano type buffering flapper can be arranged in cylindrical shell 1.The periphery of every group of piano type buffering flapper is a quadra (two frameworks of expression among Fig. 2).From Fig. 3 as seen, it is U type frame 16 that a long limit is arranged in each framework, and another long limit is 23.From Fig. 3 and Fig. 4 as seen, having one 20 near U-shaped frame 16 1 sides, its two ends are separately fixed on left frame 9, the left frame 13, can lay one or more pairs of axle sleeves 12 on this axle 20.Between each is to axle sleeve, twine a V-shaped torsion spring 18, its two end inserts respectively below the band steels 17 that are provided with in the two U type grooves 30 that U type frame 16 inboards have, and is locked (see figure 4) with the nut on the set screw 14 15.Turnover panel 22 is welded on a pair of axle sleeve 12, and supports by a V-type torsion spring 18 coupling ends.On turnover panel 22 back sides, be provided with in the V-type torsion spring 18 and strengthen gusset 21.

Fig. 3 shows one group of piano type flapper, can be in same framework, with an axle 20 with three pairs of axle sleeves 12 and on three turnover panels 22 and three V-type torsion springs 18, pad 11 and axle beds 19 (see Fig. 4, this concentric axle bed 19 respectively is welded with one at left frame 9 and left frame 13 inner undersides near U type frame 16.) fuse.Axle 20 is positioned on the left frame 9 by the step of its left end, and right-hand member is so as to circlip for shaft 10 spacing being fixed on the left frame 13.

Aforesaid set screw 14 can be used to adjust the moment of torsion of V-type torsion spring 18, to control the stressed of turnover panel 22.See Fig. 4, can promote band steel 17 when rotating set screw 14, this band steel 17 promotes a V-type torsion spring 18 insertion ends below it again, thereby changes the moment of torsion of this V-type torsion spring 18.After moment of torsion is adjusted, with the nut 15 on the set screw 14 described V-type torsion spring 18 is fixed again.

See Fig. 6, in U type frame 16 upper surface centers, welding leader 29 puts on upper support piece 5 on material-falling hopper cylindrical shell 1 inwall, left and right sides back-up block 6, the lower support piece 7 for piano type being cushioned flapper, perhaps takes out from it.

There is a baffle plate 3 top that is fixed on the axle 20 on the framework left and right side frame, be fixed on cylindrical shell 1 inwall by folding 2, be welded with a plurality of gussets 4 between baffle plate 3 back sides and the cylindrical shell 1, to limit its degree of dip, baffle plate 3 is upset upwards, be used in cylindrical shell 1 both sides outer wall on the upper side the detent mechanism 8 (seeing Fig. 1,2) that is provided with of position be located pinning.

As seen from Figure 5, this detent mechanism by a positioning seat 26 and in the stage clip 28 and gear shaft 24, telescopic 27, the dowel bolt 25 that are equipped with form.Between dowel bolt 25 and positioning seat 26, telescopic 27 and the gear shaft 24 respectively with being threaded.During normal condition, gear shaft 24 extend in the cylindrical shell 1.When pulling telescopic 27, stage clip 28 is compressed, in the gear shaft 24 indentation positioning seats 26.Baffle plate 3 upwards overturns and comes on material-falling hopper feed side cylindrical shell 1 inwall at this moment, unclamp telescopic 27, gear shaft 24 returns to original state under the effect of stage clip 28, thereby baffle plate 3 location are pinned, and makes maintenance, changes the more convenient and safety of piano type buffering flapper material-falling hopper internals.

Above-mentioned baffle plate 3 nadirs do not contact with flapper, axle 20 all can be covered, and prevent that dust from entering in axle sleeve 12 and the axle bed 19.

In addition, on turnover panel 22 surfaces, rubber plate can be set, to improve its leakproofness etc.

The technical scheme that the utility model provides, particularly piano type buffering flapper, baffle plate etc. also can be used to material-falling hopper of the prior art is transformed, and make it to become environmentally friendly machine, reduce the effusion of dust, and are convenient to maintenance.

Claims

1, piano type buffering flapper material-falling hopper, mainly comprise oblong cylindrical shell (1), be provided with plate washer (3) in it, axle (20) and turnover panel (22), it is characterized in that cylindrical shell (1) inwall is provided with upper support piece (5), left and right sides back-up block (6) and lower support piece (7), can be equipped with one or more groups piano type buffering flapper on it, every group of piano type buffering flapper periphery is a quadra, a long limit is a U type frame (16) in each framework, near these U type frame (16) one sides one (20) are being set, its two ends are separately fixed on left frame (9) and the left frame (13), on this axle (20), can lay one or more pairs of axle sleeves (12), one torsion spring (18) is set between each is to axle sleeve (12), can be V-shape, its two end insert respectively the mobilizable band steel (17) that is provided with in the two U type grooves of offering U type frame (16) inboard below, and be locked with the nut (15) on the set screw (14), one turnover panel (22) is welded on a pair of axle sleeve (12), and supports by the coupling end of a V-type torsion spring (18).

2, material-falling hopper according to claim 1 is characterized in that described upper support piece (5), left and right sides back-up block (6) and the lower support piece (7) that is fixed on cylindrical shell (1) inwall can be step, so that piano type buffering flapper is firmly limited.

3, according to the described material-falling hopper of claim 1, it is characterized in that described baffle plate (3), be fixed on cylindrical shell (1) inwall by folding (2), weld a plurality of gussets (4) at this baffle plate (3) by the back side of cylindrical shell (1) inwall, come the degree of dip of positioning baffle (3) with this, baffle plate (3) is upwards after the upset, available one be located at cylindrical shell (1) both sides outer wall on the upper side the gear shaft (24) in the detent mechanism at position (8) be located pinning.

4, according to the described material-falling hopper of claim 3, it is characterized in that described detent mechanism (8) by a positioning seat (26) and in the stage clip (28) and gear shaft (24), dowel bolt (25), the telescopic (27) that are provided with form, between dowel bolt (25) and positioning seat (26), telescopic (27) and the gear shaft (24) respectively with being threaded, during normal condition, gear shaft (24) stretches in the cylindrical shell (1).