Compact stainless steel wire mesh cleaning method of fluidized bed

A technology of fluidized bed and stainless steel mesh, which is applied in the field of hot metal desulfurization, can solve the problems of incomplete cleaning with high-pressure water, and achieve the effect of fast drying and avoiding damage

Inactive Publication Date: 2019-02-19
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a cleaning method for a fluidized bed dense stainless steel mesh to solve the problem of incomplete cleaning with high-pressure water

Method used

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  • Compact stainless steel wire mesh cleaning method of fluidized bed
  • Compact stainless steel wire mesh cleaning method of fluidized bed

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Embodiment Construction

[0012] A method for cleaning a dense stainless steel net in a fluidized bed. Two upper and lower blind plates 1 are made, and an air inlet pipe 2 is welded on one side of the blind plate. Two blind plates 1 are used to cover the large mouth end and the small mouth of a cone fluidized bed 3 At the end, two blind plates 1 clamp the cone fluidized bed 3 in the middle, holes are opened on the edge of the blind plates 1, and the through holes are used for bolts to pass through, and the two blind plates 1 are fixed tightly with bolts and nuts. Prepare a water tank 4 capable of accommodating the combination of the blind plate 1 and the cone fluidized bed 3 . Put the whole combined blind plate 1 and cone fluidized bed 3 into the water tank 4, add water to submerge the cone fluidized bed 3, then add 1-2L dilute hydrochloric acid with a mass concentration of 10-13%, soak for 10 -12 hours, enter the compressed air from the inlet pipe 2, the pressure of the compressed air is 0.4MPa-0.5Mpa...

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Abstract

The invention discloses a compact stainless steel wire mesh cleaning method of a fluidized bed. The fluidized bed multilayer compact stainless steel wire mesh used by a desulfurization composite blowing system can be conveniently and rapidly cleaned. Two blind plates are used for clamping the fluidized bed in the middle, the edges of the blind plates are tightened by bolts, and the upper side blind plate is connected with an air inlet pipe in a welded mode; a water tank with a proper size is manufactured and clear water is injected; the fluidized bed is placed in the water tank for soaking, asmall amount of dilute hydrochloric acid ( with concentration of about 13%) is added, then compressed air is intermittently introduced from the air inlet pipe of the upper side blind plate, and a liquid flow is used for washing the compact stainless steel wire mesh of the fluidized bed, lime powder clamped in the multilayer compact stainless steel wire mesh is completely blown out after being dissolved.

Description

technical field [0001] The invention relates to the field of molten iron desulfurization, in particular to the cleaning and dredging of multi-layer dense stainless steel nets used for spraying lime powder. Background technique [0002] The shape of the fluidized bed is trumpet-shaped, and the side is uniformly pressed by multi-layer dense stainless steel mesh. The airflow passes through the dense stainless steel mesh from the outside and enters the inside of the cone evenly to fluidize the lime and magnesium powder in the fluidized bed, so that The gas can evenly transport lime and magnesium powder into the molten iron, avoiding the unstable flow of the powder and causing the molten iron to splash. If the dense stainless steel mesh is clogged and the air permeability is not good, it will affect the fluidization effect of lime and magnesium powder, the flow of gas conveying powder will be unstable, and molten iron will splash, resulting in metal loss and burning of vehicles. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08
CPCC23G1/08
Inventor 王力张英嘉刘军
Owner GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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