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Bottom unloading device of reduction furnace and unloading method thereof

A bottom unloading and reducing furnace technology is applied in the field of bottom unloading of reduction furnaces or similar devices, and the field of bottom unloading devices of reduction furnaces, which can solve the problems such as the inability to realize the closing of the material and the difficulty in controlling the unloading flow, so as to avoid damage. The effect of sealing valve or loose sealing, low cost and uniform feeding

Active Publication Date: 2017-10-13
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem that the unloading flow rate of the existing unloading method is not easy to control and cannot realize the closing with material

Method used

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  • Bottom unloading device of reduction furnace and unloading method thereof
  • Bottom unloading device of reduction furnace and unloading method thereof
  • Bottom unloading device of reduction furnace and unloading method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In order to overcome the problem that the unloading flow rate of the existing unloading method is not easy to control and cannot realize the problem of closing with material, this embodiment provides a method such as figure 1 , figure 2 and image 3 The shown reduction furnace bottom unloading device includes a regulating valve 1 and a hopper 2 arranged at the lower end of the regulation; the regulating valve 1 includes a regulating valve housing 12, a pair of split valve plates 13, two cranks one 14, two A connecting rod one 16, a driving mechanism one 17 and two crank rotating shafts one 18, the two crank rotating shafts one 18 are connected side by side on both sides of the regulating valve housing 12, and the driving mechanism one 17 passes through the connecting rod one 16 and the crank One 14 is connected to the crank shaft 18, and the two crank shafts 18 are driven to rotate relative to each other through a set of connecting rods 16 and crank 14, and each crank...

Embodiment 2

[0038] On the basis of Example 1, in order to improve the sealing performance of the bottom unloading device of the reduction furnace, this embodiment provides a bottom unloading device for the reduction furnace, which includes a regulating valve 1, a hopper 2, On-off valve 3 and sealing valve 4; the regulating valve 1 comprises a regulating valve housing 12, a split valve plate 13, a crank one 14, a connecting rod one 16, a drive mechanism one 17 and a crank shaft one 18, and the crank shaft one The two ends of 18 are connected to both sides of the regulating valve housing 12, the drive mechanism 17 is connected to the crank shaft 18 through the connecting rod 16 and the crank 14, and the two ends of the split valve plate 13 are connected to the two ends of the crank shaft 18. Crank shaft one 18 rotates and drives the split valve plate 13 to open and close; the switch valve 3 includes a switch valve housing 32, a fan-shaped valve plate 33, a crank two 34, a drive mechanism two...

Embodiment 3

[0049] On the basis of Example 1, as a preferred embodiment, the longitudinal section of the hopper 2 is an inverted trapezoidal structure with a large upper part and a smaller lower part. Regular interfaces make the design of the lower on-off valve 3 and sealing valve 4 simple and reliable in structure.

[0050] In addition, in order to facilitate disassembly and replacement among the reduction furnace, regulating valve 1, hopper 2, on-off valve 3 and sealing valve 4, the top of the hopper housing 22 is connected to the upper flange 21, and the bottom of the regulating valve housing 12 is connected to the lower flange. Flange one 15, the hopper housing 22 and the regulating valve housing 12 are flanged through the upper flange two 21 and the lower flange one 15. The bottom of the hopper housing 22 is connected to the lower flange 2 23, the top of the switch valve housing 32 is connected to the upper flange 3 31, and the connection between the hopper housing 22 and the switch ...

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PUM

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Abstract

The invention provides a bottom discharging device for a reduction furnace. The bottom discharging device comprises a regulating valve, a hopper, a switching valve and a sealing valve which are sequentially connected from top to bottom. The regulating valve comprises a regulating valve shell, oppositely-opened valve plates, first cranks, first connecting rods, a first driving mechanism and first crank rotating shafts. The first driving mechanism drives the oppositely-opened valve plates to be opened and closed. The switching valve comprises a switching valve shell, a sector valve plate, a second crank, a second driving mechanism and a second crank rotating shaft. The second driving mechanism drives the sector valve plate to be opened and closed. The sealing valve comprises a sealing valve shell, a sealing plate, a second connecting rod and a counter weight. The sealing plate is automatically pressed by means of the self-weight of the counter weight, so that sealing is simple and reliable. The material flow speed can be adjusted at any time by controlling the opening degree of the oppositely-opened valve plates; meanwhile, when materials are cut off, the oppositely-opened valve plates and the switching valve can cut off the materials at any time in the discharging process, and therefore cutoff is achieved while the materials exist, and the problems that the materials are accumulated in the sealing face of the sealing valve and consequently loose sealing is caused and even the sealing valve is damaged are avoided.

Description

technical field [0001] The invention belongs to the technical field of industrial smelting, and in particular relates to a reduction furnace bottom discharge device and a discharge method thereof, which are applied to the bottom discharge of reduction furnaces or similar devices. Background technique [0002] In the field of industrial smelting, the reduction furnace often adopts the bottom discharge method. However, the unloading flow rate of the reduction furnace bottom unloading method in the prior art is not easy to control. According to actual production needs, during the unloading process, the bottom unloading of the reduction furnace needs to meet the following requirements: [0003] (1) During the unloading process, the material flow rate should match the capacity of the subsequent conveying device and can be adjusted as needed. [0004] (2) The unloading device must be able to shut off the material at any time during the unloading process to achieve "close with ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/00F27D3/00
CPCF27D3/00F27M2003/165
Inventor 金文浩胡雪萍牟丹王文聪程文芳张良危丹峰
Owner WISDRI ENG & RES INC LTD