CN111504046B

CN111504046B - Hot flue gas drying device for storage bin

Info

Publication number: CN111504046B
Application number: CN201910109910.6A
Authority: CN
Inventors: 季书民; 安志庆; 李胜强
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2023-04-07
Anticipated expiration: 2039-01-30
Also published as: CN111504046A

Abstract

The invention discloses a hot flue gas drying device for a silo, which comprises a stand column frame and a flue gas main pipe, wherein the stand column frame is provided with a main pipe support, the top surface of the main pipe support is provided with a tile-shaped support, the flue gas main pipe is horizontally arranged on the tile-shaped support, the flue gas main pipe is connected with two drying branch pipes at intervals side by side, the drying branch pipes respectively extend into the silo, the cross sections of the drying branch pipes are equilateral triangles, the drying branch pipes are internally provided with T-shaped supports, the horizontal bottom surfaces of the drying branch pipes are provided with two groups of rectangular exhaust hole arrays side by side along the axial direction of the branch pipes, and the top surfaces of two sides of each drying branch pipe are respectively and fixedly connected with a wear-resistant lining plate through sunk bolts. The combustion waste gas of the heating furnace is introduced into the storage bin to bake the raw materials. This hot flue gas of feed bin dries by fire material device, simple manufacture, convenient operation, the rate of operation is high, and the effect is obvious.

Description

Hot flue gas drying device for storage bin

Technical Field

The invention relates to a hot flue gas drying device for a material bin.

Background

In the existing raw material storage system for industrial production in China, materials with high water content are put into a bin to cause the wall of the bin to be hardened, the bin is not discharged, and lump coal with high water content is added into a metallurgical furnace to cause the increase of thermal explosion of the lump coal in the melting gasification metallurgical Europe and metallurgy furnace, the increase of dust content and tar content of output coal gas, the increase of oxygen demand of a gasification furnace, the decrease of temperature of a dome of the gasification furnace, the decrease of reduction potential of the output coal gas, the consumption of heat in a high temperature area and the increase of coal consumption (moisture content) and the serious interference to normal production of the furnace. In addition, the moisture is gasified to consume heat in a high-temperature area. Meanwhile, a large amount of pulverized coal is loaded into the gasification furnace or high-moisture lump coal is added into the gasification furnace to generate the charged pulverized coal through thermal cracking, so that the coke ratio and the fuel ratio are increased. If production is carried out in winter, raw materials in the stock bin and the foam bin are easy to freeze, so that the stock bin does not discharge materials. The charging of the furnace is influenced, the yield and indexes are reduced, and the cost is increased. Meanwhile, the stock bin does not discharge materials, the materials are poked manually, the workload and labor cost of workers are increased, the labor productivity is reduced, and the safety of personnel cannot be guaranteed during poking the materials.

Disclosure of Invention

The invention aims to provide a hot flue gas drying device for a material bin, which can achieve the purpose of drying moisture in raw materials by utilizing tail gas of a flue gas furnace through a draught fan and a flue gas pipeline.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a hot flue gas of feed bin dries by fire material device, includes stand frame and flue gas house steward, is setting up a house steward support on the stand frame, is setting up a tile shape support on the house steward support top surface, the flue gas house steward level place on the tile shape support, two are drying by fire the material branch pipe on the flue gas house steward side by side the interval connection, dry by fire in the material branch pipe stretches into the feed bin respectively, dry by fire the transversal equilateral triangle of personally submitting of material branch pipe, set up the T support in drying by fire the material branch pipe, dry by fire and set up two sets of rectangle exhaust hole arrays side by side along the branch pipe axial on the horizontal bottom surface of material branch pipe, dry by fire and pass through countersunk head bolt difference fixed connection wear-resisting welt on the both sides top surface of material branch pipe.

The invention does not consume energy, but introduces the combustion waste gas of the heating furnace, and introduces the waste gas of the combustion furnace into the storage bin through the induced draft fan, the flue gas pipeline and the material drying branch pipe in the storage bin to bake the raw materials. This hot flue gas of feed bin dries by fire material device, simple manufacture, convenient operation, the rate of operation is high, and the effect is obvious. After the flue gas is introduced, the moisture in the raw materials is roasted, and the method is suitable for the requirement of the heat for drying materials (coke, ore, coal powder and lump coal). By using the heating device in the factory, the capacity of the metallurgical furnace is improved, the fuel ratio is reduced, and a space is provided for cost reduction of enterprises.

Drawings

The present invention will be described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a bottom view of the material drying manifold of the present invention;

FIG. 3 is a schematic sectional front view of the material drying branch pipe according to the present invention.

Detailed Description

The utility model provides a hot flue gas of feed bin dries by fire material device, is shown in figure 1, figure 2, figure 3, including stand frame 1 and flue gas house steward 2, is setting up a house steward support on the stand frame, is setting up a tile shape support 8 on the house steward support top surface, flue gas house steward 2 level place on tile shape support 8, two stoving material branch pipes 6 are being connected at the interval side by side on the flue gas house steward, in stoving material branch pipe 6 stretched into feed bin 10 respectively, is setting up support stop iron 11 on another lateral wall of feed bin 10 for support the tip of stoving material branch pipe 6. The cross section of the drying branch pipe 6 is in an equilateral triangle shape, a T-shaped support 14 is arranged in the drying branch pipe, two groups of rectangular exhaust hole arrays 12 are arranged side by side on the horizontal bottom surface of the drying branch pipe 6 along the axial direction of the branch pipe, and the top surfaces of two sides of the drying branch pipe 6 are respectively and fixedly connected with wear-resistant lining plates 16 through sunk bolts 13.

Claims

1. The utility model provides a hot flue gas of feed bin dries by fire material device, includes stand frame and flue gas house steward, characterized by: set up a house steward support on the stand frame, set up a tile shape support on the house steward support top surface, flue gas house steward level place on the tile shape support, two are drying by the fire the material branch pipe on the flue gas house steward side by side the interval connection, dry by the fire in the material branch pipe stretches into the feed bin respectively, drying by the fire transversal equilateral triangle of personally submitting of material branch pipe, drying by the fire and setting up T shape support in the material branch pipe, drying by the fire and setting up two sets of rectangle exhaust hole arrays side by side along the branch pipe axial on the horizontal bottom surface of material branch pipe, drying by the fire and installing wear-resisting welt of bolt difference fixed connection on the both sides top surface of material branch pipe.