CN-224221247-U - Feeding system for dust fall and preventing steam escape and material throwing in iron-making production

CN224221247UCN 224221247 UCN224221247 UCN 224221247UCN-224221247-U

Abstract

The utility model discloses a feeding system for dust fall and preventing steam escape and material throwing in iron-making production, which comprises a first belt conveyor, a sintering machine mixing cylinder, an escape prevention cover and a collecting and conveying cover, wherein the first belt conveyor is a hollow cavity, the sintering machine mixing cylinder is horizontally arranged and is provided with a feeding port and a discharging port, the discharging port is positioned above a second belt conveyor, the escape prevention ring is of an annular structure, the left side of the escape prevention ring is welded with the sintering machine mixing cylinder, the escape prevention cover is used for collecting dust and low-temperature steam from raw materials generated during discharging of the first belt conveyor, and the collecting and conveying cover is used for receiving the dust and the steam from the escape prevention cover and conveying the dust and the steam to a dry dust remover.

Inventors

GAO PENG
ZHANG HAILAN
MA FEI
ZHAO WEI
MA JUNFENG
Xue bei

Assignees

陕西龙门钢铁有限责任公司

Dates

Publication Date: 20260512
Application Date: 20250428

Claims (3)

1. A feed system for dust fall and preventing steam escape and material dumping in iron making production, comprising: a first belt conveyor (10) for conveying ironmaking raw materials; The material mixing cylinder (11) of the sintering machine is a hollow cavity and is horizontally provided with a material inlet and a material outlet, wherein the material outlet is positioned above the second belt conveyor and is used for uniformly mixing raw materials from the first belt conveyor (10) in the material inlet and then conveying the raw materials to the second belt conveyor, and the material outlet end of the first belt conveyor (10) is used for extending into the material inlet of the material mixing cylinder (11) of the sintering machine to discharge materials; The escape prevention ring (12) is of an annular structure, and the left side of the escape prevention ring is welded with the mixing cylinder (11) of the sintering machine; The escape prevention cover (13) is a hollow shell, the left end and the right end of the shell are respectively provided with a through hole, and the left through holes are clamped in the escape prevention ring (12), wherein the escape prevention cover (13) is used for collecting dust and low-temperature steam from raw materials generated during the discharging of the first belt conveyor (10); The collecting and conveying cover (14) is a cover body with a top part, a bottom part and a left side opening, the top part of the cover body is connected with the dry dust remover through a pipeline, the bottom part of the cover body is close to the first belt conveyor (10), the left side opening of the cover body is close to the right through opening of the escape prevention cover (13), and the cover body is used for receiving dust and steam from the escape prevention cover (13) and conveying the dust and steam to the dry dust remover.
2. The feeding system for dust fall and prevention of steam escape and material throwing in iron-making production according to claim 1, wherein the escape prevention ring (12) is formed by integrally connecting a left ring plate (15), a middle ring cylinder (16) and a right ring plate (17) which are coaxially arranged, the left ring plate (15) is vertically arranged, the left side of the left ring plate is welded with a discharge hole of a sintering machine mixing cylinder (11), the axis of the middle ring cylinder (16) coincides with the axis of the sintering machine mixing cylinder (11), the left side of the middle ring cylinder is integrally connected with the left ring plate (15), the left side of the right ring plate (17) is integrally connected with the right end of the middle ring cylinder (16), the left ring plate (15), the middle ring cylinder (16) and the right ring plate (17) are mutually matched to form an accommodating groove (18) with an opening outwards, and the accommodating groove (18) is used for enabling a left through hole of an escape prevention cover (13) to extend into, so that in the process of autorotation of the sintering machine mixing cylinder (11), the dust is prevented from being sealed between the feed hole of the sintering machine mixing cylinder (11) and the escape prevention cover (13), and the dust is prevented from escaping from the sintering machine mixing cylinder (13).
3. The feeding system for dust fall and prevention of steam escape and material throwing in iron making production according to claim 1, wherein a material receiving opening is formed in the bottom of the escape prevention cover (13), a bulk material tank (19) is fixedly connected to the material receiving opening, and the bulk material tank (19) is used for receiving materials freely falling in the escape prevention cover (13).

Description

Feeding system for dust fall and preventing steam escape and material throwing in iron-making production Technical Field The utility model belongs to the technical field of sintering blendors, and particularly relates to a feeding system for dust fall and preventing steam escape and material throwing in iron-making production. Background The mixing is an important process link of the production of the sintering ore, and the main equipment involved is a mixer. The sintering raw materials after the material mixing link are conveyed to a mixer through a rubber belt conveyor, and after the raw materials are added with water, mixed and pelletized in the mixer barrel, the mixture meeting the technological requirements is provided for the sintering machine. In the operation process of the mixer, as the calcined lime with a certain proportion is added in the sintering raw materials, the calcined lime and water react in an exothermic manner in the mixing process to generate a large amount of steam, and the adhesive tape conveyor also generates a large amount of dust in the discharging process in the mixer barrel, and simultaneously has the phenomena of steam escape and material throwing. In order to prevent serious environmental pollution, a simple sealing cover is generally arranged at the feeding end of a mixer barrel, a natural exhaust pipe is arranged at the upper part of the sealing cover, steam and dust are directly discharged into the atmosphere through the natural exhaust pipe, a bulk material discharge port is arranged at the lower end of the sealing cover, and materials thrown in the discharging process directly fall on the ground from the bulk material discharge port, so that the environmental pollution to a great extent is caused. Along with the continuous improvement of the national environmental protection emission standard, the prior art cannot meet the emission requirement, and corresponding measures must be taken. Although some dust collector factories begin to connect the original natural exhaust pipe with a wet dust collector to avoid direct discharge, the problems of pipeline blockage, sewage treatment and the like are not solved effectively, and the operation effect is not ideal. Disclosure of utility model The utility model aims to provide a feeding system for reducing dust and preventing steam escape and material throwing in iron-making production, so as to solve the problems of a large amount of dust in the operation process of a mixer and steam escape and material throwing. The utility model adopts the following technical scheme that the feeding system for dust fall and preventing steam escape and material throwing in iron-making production comprises: the first belt conveyor is used for conveying ironmaking raw materials; The material mixing cylinder of the sintering machine is a hollow cavity and is horizontally provided with a material inlet and a material outlet, wherein the material outlet is positioned above the second belt conveyor and is used for uniformly mixing raw materials from the first belt conveyor and then conveying the raw materials to the second belt conveyor; the escape-preventing ring is of an annular structure, and the left side of the escape-preventing ring is welded with the mixing cylinder of the sintering machine; the escape prevention cover is a hollow shell, the left end and the right end of the escape prevention cover are respectively provided with a through hole, and the left through holes are clamped in the escape prevention ring; The collecting and conveying cover is a cover body with a top part, a bottom part and a left side opening, the top part of the collecting and conveying cover is connected with the dry dust remover through a pipeline, the bottom part of the collecting and conveying cover is close to the first belt conveyor, the left side opening of the collecting and conveying cover is close to the right through opening of the escape preventing cover and is used for receiving dust and steam from the escape preventing cover and conveying the dust and steam to the dry dust remover. Further, the anti-escape ring comprises a left ring plate, a middle ring cylinder and a right ring plate which are coaxially arranged, the left ring plate is vertically arranged, the left side of the left ring plate is welded with a discharge hole of a mixing cylinder of the sintering machine, the axis of the middle ring cylinder is coincident with the axis of the mixing cylinder of the sintering machine, the left side of the middle ring plate is integrally connected with the left ring plate, the left side of the right ring plate is integrally connected with the right end of the middle ring cylinder, the left ring plate, the middle ring cylinder and the right ring plate are mutually matched to form an accommodating groove with an outward opening, the accommodating groove is used for extending into a left through hole of an anti-escape cover, and then sealing between a feed inlet