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Bell-less distributor for blast furnace

A material distributor and bellless technology, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve the problems of reduced accuracy of material distribution, wear of rails and rollers, and short life, so as to simplify the overall structure, ensure accuracy, and achieve long life Effect

Inactive Publication Date: 2015-01-07
蔡乐松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above two structures, the drag ring bears lateral force. The general method is to increase the track and rollers to control the displacement of the drag ring caused by the lateral force. In actual use, the α angle changes very little, and the frequency is high. Abrasion reduces the accuracy of the cloth and affects the normal use of the equipment. Due to structural defects (the drag ring is subjected to lateral force), the equipment has poor accuracy and short life, and cannot compete with foreign equipment.

Method used

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  • Bell-less distributor for blast furnace
  • Bell-less distributor for blast furnace
  • Bell-less distributor for blast furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] See attached figure 1 ~ attached Figure 4, the chute suspension device in the present embodiment comprises the chute suspension frame 6 and the trunnions 8-7 connected with the chute suspension frame 6, the structure of the present embodiment comprises the distributor box 11, the top cover positioned at the distributor box 11 5. The chute 7, the chute suspension frame 6, the trunnions 8-7 hinged on both sides of the rotating sleeve 9, the driving mechanism for controlling the β-angle rotation of the chute 7 and the actuator for controlling the α-angle tilting of the chute 7 The drive mechanism includes a rotating motor 2, a reducer 1, an upper slewing bearing 4 and a rotating sleeve 9, the reducer 1 drives the upper slewing bearing 4 to rotate through a rotating gear 14, and the upper slewing bearing 4 drives the rotating sleeve 9 to rotate , the rotating sleeve 9 drives the chute 7 connected to the chute suspension frame 8 to rotate through the trunnions 8-7; the act...

Embodiment 2

[0052] See attached Figure 5 And attached Figure 6 In this embodiment, a double-crank mechanism is added on the basis of the above-mentioned various structures, and the double-crank mechanism includes a rotating shaft 15, two cranks 12 connected to the rotating shaft 15 and the trunnion 8-7 respectively, and two cranks hinged to the two cranks. 12 between the connecting rod 13, the center line of the rotating shaft 15 passes through the center of the fixed gear 8-1; after adding the double crank mechanism, the structure of the planetary linear mechanism is: including the fixed gear fixed on the rotating sleeve 9 Gear 8-1, the planetary gear 8-4 meshing with the fixed gear 8-1 and the planetary connecting rod located between the rotating shaft 15 and the planetary gear 8-4, the pitch circle diameter of the fixed gear 8-1 is planetary 2 times of wheel 8-4 pitch circle diameter, described driving bar 8-2 is hinged with the pin shaft that is fixed on planetary wheel 8-4 pitch c...

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Abstract

The invention discloses a bell-less distributor for a blast furnace. The distributor comprises a distributor box body, a chute, a chute hanging device, a beta-angle rotation driving mechanism and an alpha-angle tilting mechanism, wherein the beta-angle rotation driving mechanism and the alpha-angle tilting mechanism are used for controlling the chute; the alpha-angle tilting mechanism comprises a towing loop, a pivoting support, an upper transmission system and an alpha-angle lower transmission mechanism, wherein the alpha-angle lower transmission mechanism is used for converting the vertical linear motion of the towing loop into the tilting motion of the chute; the lower transmission mechanism is a planet linear moving mechanism which is fixed on a rotating sleeve and is connected with a movable ring of the pivoting support by a driving rod; the driving rod is arranged on the movable ring of the pivoting support; the chute hanging device comprises trunnions arranged at both sides of the rotating sleeve of the distributor and a chute suspension bracket which is connected with the trunnions; and the planet linear moving mechanism is connected with the chute suspension bracket by the trunnions. Due to the adoption of the planet linear moving mechanism, the driving rod performs linear motion all along under the drive of the towing loop, the towing loop excludes lateral force, rails and rolling wheels for controlling the towing loop are not required, and therefore, the whole structure is simplified and both the service precision and the long service life are ensured.

Description

technical field [0001] The invention relates to a blast furnace material distribution device, in particular to a blast furnace bellless material distributor. Background technique [0002] At present, the blast furnace bellless top includes a distributor, a bellows, a lower sealing valve, a material flow regulating valve, a material tank, an upper sealing valve, a material stop valve and a hopper, among which the distributor is the core component of the whole set of equipment, which is installed in On the furnace shell, the working position of the distribution chute is in the blast furnace, where the normal working temperature is about 200°C, and the instantaneous temperature can reach 700°C when the charge is abnormal. The working environment is harsh, and the raw gas and dust content is high. Furnace material rushes to the material distribution chute from the material flow regulating valve through a height difference of several meters. At the same time, the tilting angle an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/00
Inventor 李玉清贾卫东
Owner 蔡乐松