CN201110717Y - Grate plate reset device - Google Patents

Abstract

The utility model discloses a reset device for grid plates of a chain grate, which is composed of a lateral plate of a chute of a distribution roll screen, a steel ball string, a steel cable clamp and a hanger. The upper end of the steel ball string is fixed on the hanger by the steel cable clamp, the hanger is welded on the lateral plate of the chute of the distribution roll screen, and the steel ball string is close to a grid plate arranged on a grid bed and keeps gaps. The device generates no enforced resetting, thereby the grid plate is not easy to be snapped and ruptured, and a small shaft is not easy to be bent.

Description

A kind of grate plate resetting means

Technical field

The utility model relates to ironmaking pelletizing production equipment drying grate, particularly grate plate resetting means.

Background technology

Drying grate is ironmaking with the visual plant of pelletizing production, and its transmission device drives final drive shaft, sprocket wheel, chain, little axle, grate plate, the green-ball on the grate plate by drum do, drain, preheating section is conveyed into calcining process.Grate plate can be around 120 ° of rotations of little axle.Because operating ambient temperature height, about about 180～1000 ℃, each parts thermal deformation is bigger in the drying grate course of work, cause gaps such as snap ring and little axle, grate plate, side shield inconsistent, cause grate plate not reset on request, cause grate plate and little axle to damage, do not reset because of grate plate when serious, cause and comb bed the time, break grate plate and the little axle that bends, have a strong impact on ordinary production by the shovel flitch.Now adopt the rigidity resetting means with resetting means, a rigidity catch pawl promptly is installed on the drying grate frame at drying grate tail wheel rear portion, this catch pawl is 5～15mm apart from the gap of grate plate.When the moving grate plate that do not reset is passed through when pawl, give mechanism by catch pawl, like this with its forced resetting.Though this mode has certain effect, but because it is bigger to be in each part distortion of drying grate of the condition of high temperature, indivedual grate plates are by the rigidity catch pawl time, its position is stuck, if at this moment allow it continue by rigidity forced resetting device, cause the damage to grate plate and associated components easily, little axle fracture bending also further causes the substantial equipment accident.

The utility model content

At existing grate bed grate plate the phenomenon that do not reset is arranged, by rigidity resetting means forced resetting grate plate, cause the damage to grate plate and associated components easily, little axle fracture bending also further causes the problem of substantial equipment accident, the utility model proposes a kind of grate plate resetting means.

The technical solution of the utility model is, a plurality of steel balls that are drilled with through hole are serially connected with steel wire rope and vertically hang on drying grate afterbody cloth roll screen slips the hopper side plate, the steel ball string is near grate plate, when grate plate is passed through, the steel ball string is given the active force of grate plate that do not reset, the grate plate that does not reset is resetted, reach instructions for use.

The utility model has changed original fixed rigidity forced resetting device, the effect of bringing thus is, between grate plate and grate plate, form the pressure dead angle at certain angle, in the time of can not resetting by the steel ball effect, ability is passed through smoothly, back manual reset, be unlikely to cause grate plate to fracture and little axle is bent, so that strengthen the scope of repair, increase the repair time and cause unnecessary spare part to damage, strengthen the spare parts consumption cost.

Description of drawings

Fig. 1 is former rigidity forced resetting device front view.Among the figure, 1 is rigidity forced resetting device catch pawl, and 2 is grate plate, and 3 are cloth roll screen slide hopper side plate, and 4 is the cloth roll screen, and 5 is the drying grate tail wheel, and 6 is the drying grate frame, and 7 is little axle.

Fig. 2 is that rigidity forced resetting device is installed vertical view.

The front view of Fig. 3 the utility model installation site, among the figure: 10 is the steel ball string, and 2 is grate plate, and 3 are cloth roll screen slide hopper side plate, and 4 is the cloth roll screen, and 5 is the drying grate tail wheel, and 6 is the drying grate frame, and 7 is little axle, and 8 is suspender member, and 9 is the steel cable rope clamp.

The specific embodiment

Fig. 3 has illustrated embodiment, the steel ball string that is drilled with the hole is formed the steel ball string on steel cable, steel ball string 10 upper ends are fixed on the suspender member 9 of cloth roll screen slide hopper side plate welding with steel cable rope clamp 9, make the steel ball string near the grate plate on the bed of combing, leave appropriate gap between its steel ball and comb bed grate plate, when passing through this position with the assurance grate plate, the steel ball string can give suitable active force, and grate plate can be resetted.

Claims (1)

1. grate plate resetting means, form by cloth roll screen slide hopper side plate (3), steel ball string (10), steel cable rope clamp (9), suspender member (8), it is characterized in that, the steel ball string that is drilled with the hole is formed steel ball string (10) on steel cable, steel ball string (10) upper end is fixed on the suspender member (9) of cloth roll screen slide hopper side plate welding with steel cable rope clamp (9), the steel ball string is near the grate plate on the bed of combing, and and combs and between the bed grate plate appropriate gap is arranged.

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