CN112501387A

CN112501387A - KR is balanced stirring rake elevating gear of pulling force for desulfurization

Info

Publication number: CN112501387A
Application number: CN202011188852.XA
Authority: CN
Inventors: 王爽; 王昆; 韩雪; 李天赫; 兰勇; 曾涛; 邹常青; 鞠德强
Original assignee: Ansteel Engineering Technology Corp Ltd
Current assignee: Ansteel Engineering Technology Corp Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-03-16

Abstract

The invention relates to a tension balance stirring paddle lifting device for KR desulfurization, which comprises a fixed frame, wherein the middle part of the fixed frame is provided with a lifting frame, the middle part of the lifting frame is provided with a rotatable stirring paddle, and the lifting frame is connected with a lifter through a tension balance lifting device; the balanced hoisting device of pulling force sets up the lower fixed pulley on lifting frame upper portion including the symmetry, the symmetry sets up the last fixed pulley at fixed frame top, the symmetry is equipped with the support between the last fixed pulley of both sides, the axostylus axostyle is connected through the bearing frame at the top of two supports, the both ends of axostylus axostyle articulate the swing arm respectively, the bottom of swing arm is articulated with the flex point department of turning arm, the articulated lug in one side outer end of turning arm, the bottom fixed connection steel cable of lug, articulated balancing beam between the outer end of the opposite side of the turning arm of both sides, the steel cable is connected with the lifting machine after enc.

Description

KR is balanced stirring rake elevating gear of pulling force for desulfurization

Technical Field

The invention relates to the field of metallurgical equipment, in particular to a tension balance stirring paddle lifting device for KR desulfurization.

Background

In KR desulphurization unit, the gyro wheel is equipped with for the four corners to stirring rake lift truck, passes through two steel cable pulling by hoist hoisting device, reciprocates along the slide in the fixed frame interior four corners. Because fixed frame is the multistage hookup, and the four sides slide, it is extremely difficult to guarantee the whole straightness of slide in manufacturing and installation, consequently produces very big clearance easily between gyro wheel and slide, when the length difference takes place for factors such as temperature, because of the pulling force inequality leads to the frame card to hinder in the lift process when both sides steel cable. The prior art adopts a set of stabilizer, connects after bypassing the stabilizer with two steel cables, becomes a steel cable, though make the pulling force balanced, but a steel cable in case fracture will take place the frame and fall, has great potential safety hazard.

Present KR desulphurization unit goes up and down to all adopt the hoist to drive two steel cable lifting modes, in order to avoid the card to hinder, adopts the gyro wheel that has the spring usually, keeps laminating with the slide as far as possible, improves the manufacturing and the installation accuracy of slide and frame simultaneously, increases the construction cost. The problems of tension balance and falling prevention are not solved, and the steel rope can be blocked when the length of the steel rope is changed due to the influence of factors such as temperature, fatigue and the like in the production process, so that the production is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a tension balance stirring paddle lifting device for KR desulfurization, which solves the problem of tension balance and avoids blockage.

In order to achieve the purpose, the invention adopts the following technical scheme:

a tension balance stirring paddle lifting device for KR desulfurization comprises a fixed frame, wherein a lifting frame is arranged in the middle of the fixed frame, a rotatable stirring paddle is arranged in the middle of the lifting frame, and the lifting frame is connected with a lifting machine through the tension balance lifting device; the balanced hoisting device of pulling force sets up the lower fixed pulley on lifting frame upper portion including the symmetry, the symmetry sets up the last fixed pulley at fixed frame top, the symmetry is equipped with the support between the last fixed pulley of both sides, the axostylus axostyle is connected through the bearing frame at the top of two supports, the both ends of axostylus axostyle articulate the swing arm respectively, the bottom of swing arm is articulated with the flex point department of turning arm, the articulated lug in one side outer end of turning arm, the bottom fixed connection steel cable of lug, articulated balancing beam between the outer end of the opposite side of the turning arm of both sides, the steel cable is connected with the lifting machine after enc.

The horizontal distance between the center of the shaft rod and the center of the upper fixed pulley is 700 mm and 800 mm.

Compared with the prior art, the invention has the beneficial effects that:

the invention adopts the double-side crank arms to connect the steel ropes, the swing arms limit the swing amplitude of the crank arms, the double-side crank arms are connected by the balance rods, the automatic balance of double-side force is realized, and the steel ropes on the other side continuously act when the steel ropes on the single side are disconnected. Meanwhile, the swing arm can rotate around the shaft rod, the swing angle of the steel rope can be automatically adjusted along with the lifting of the frame, and the problem of lateral force generated by the change of the angle of the steel rope is solved. The problem of lifting blockage and falling prevention caused by unbalanced stress of a stirring paddle lifting frame in the KR desulfurization device are avoided. The production efficiency is improved, and simultaneously the engineering investment is saved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial structure view of the tension balance lifting device.

Fig. 3 is a side view of a partial structure of the tension balance lifting device.

In the figure: the device comprises a fixed frame 1, a lifting frame 2, a stirring paddle 3, a tension balance lifting device 4 and a steel rope 5;

lower fixed pulley 41, upper fixed pulley 42, bracket 43, bearing seat 44, shaft lever 45, swing arm 46, crank arm 47, lifting lug 48 and balance bar 49.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1-3, a tension balance stirring paddle lifting device for KR desulfurization comprises a fixed frame 1, a lifting frame 2 is arranged in the middle of the fixed frame 1, a rotatable stirring paddle 3 is arranged in the middle of the lifting frame 2, and the lifting frame 2 is connected with a lifter through a tension balance lifting device 4; the tension balance lifting device 4 comprises lower fixed pulleys 41 symmetrically arranged on the upper portion of the lifting frame 2, upper fixed pulleys 42 symmetrically arranged on the top of the fixed frame 1, brackets 43 symmetrically arranged between the upper fixed pulleys 42 on two sides, shaft levers 45 connected to the tops of the two brackets 43 through bearing seats 44, swing arms 46 hinged to two ends of the shaft levers 45 respectively, the bottoms of the swing arms 46 are hinged to inflection points of the crank arms 47, lifting lugs 48 hinged to the outer ends of one sides of the crank arms 47, steel ropes 5 fixedly connected to the bottoms of the lifting lugs 48, balance rods 49 hinged to the outer ends of the other sides of the crank arms 47 on two sides, and the steel ropes 5 are connected with a lifting machine after being respectively wound around the lower fixed pulleys 41 and the upper fixed pulleys 42.

The horizontal distance between the center of the shaft rod 45 and the center of the upper fixed pulley 42 is 700 mm and 800 mm.

The double-side crank arms of the device are connected with steel ropes, and the steel ropes are connected with a hoist after sequentially surrounding the lower fixed pulley and the upper fixed pulley to drive the lifting frame to reciprocate up and down. The swing arm limits the swing amplitude of the crank arms, the crank arms on two sides are connected through the balance rod, automatic balance of forces on two sides is achieved, and the steel rope on the other side continues to act when the steel rope on one side is disconnected. The swing arm can rotate around the shaft, the swing angle of the steel rope can be automatically adjusted along with the lifting of the frame, and the problem of lateral force generated by the change of the angle of the steel rope is solved.

The foregoing is considered as illustrative only of the principles of the invention and is not to be in any way limiting, since all equivalent changes and modifications are intended to be included within the scope of the appended claims.

Claims

1. A lifting device of a tension balance stirring paddle for KR desulfurization is characterized by comprising a fixed frame, wherein the middle part of the fixed frame is provided with a lifting frame, the middle part of the lifting frame is provided with a rotatable stirring paddle, and the lifting frame is connected with a lifter through a tension balance lifting device; the balanced hoisting device of pulling force sets up the lower fixed pulley on lifting frame upper portion including the symmetry, the symmetry sets up the last fixed pulley at fixed frame top, the symmetry is equipped with the support between the last fixed pulley of both sides, the axostylus axostyle is connected through the bearing frame at the top of two supports, the both ends of axostylus axostyle articulate the swing arm respectively, the bottom of swing arm is articulated with the flex point department of turning arm, the articulated lug in one side outer end of turning arm, the bottom fixed connection steel cable of lug, articulated balancing beam between the outer end of the opposite side of the turning arm of both sides, the steel cable is connected with the lifting machine after enc.

2. The device as claimed in claim 1, wherein the horizontal distance between the center of the shaft and the center of the upper fixed pulley is 700 and 800 mm.