CN203546121U

CN203546121U - Disperse stuff processing device of pellets in metallurgy

Info

Publication number: CN203546121U
Application number: CN201320753816.2U
Authority: CN
Inventors: 朱占军; 邓利
Original assignee: MCC North Dalian Engineering Technology Co Ltd
Current assignee: MCC North Dalian Engineering Technology Co Ltd; Northern Engineering and Technology Corp MCC
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2014-04-16
Anticipated expiration: 2023-11-26

Abstract

The utility model relates to a disperse stuff processing device of pellets in metallurgy. The device is characterized by comprising an aggregate sealing-tape machine, a disperse stuff temporary-storage bin, a bypass electric-hydraulic flat gate valve, an electric-hydraulic sector gate, an under-bin electric-hydraulic flat gate valve, a closed type vibrating feeder, a cone mill, an embedded scraper, a bucket type hoister, and a finished material sealing-tape machine. Disperse stuff is conveyed into the disperse stuff temporary-storage bin via the aggregate sealing-tape machine, and then is fed to the closed type vibrating feeder through the under-bin electric-hydraulic flat gate valve. The closed type vibrating feeder feeds the disperse stuff to the cone mill, and then the finished material is conveyed to the finished material sealing-tape machine by the embedded scraper through the bucket type hoister. The finished material sealing-tape machine conveys the finished material to a mixing system for re-pelletizing. By means of the device, the particle size and quality of the disperse stuff of fired pellets are effectively improved, the device is beneficial for re-pelletizing, equipment cost can be recovered in a short time, and considerable economic benefit is created.

Description

The bulk cargo treatment unit in metallurgical briquetting ore deposit

Technical field

The utility model relates to the bulk cargo processing technology field in the production process of metallurgical briquetting ore deposit, particularly the bulk cargo treatment unit in a kind of metallurgical briquetting ore deposit.

Background technology

China produce at present pelletizing pelletizing plant adopt be grate kiln method technique, the returning charge of this kind of technique has two kinds.The one, green-ball returning charge; This kind of returning charge do not have roasting, and entering will be broken by stirring in mixer, and pelletizing is not affected.The 2nd, the returning charge of chain grate head reverse-running section; On pelletizing impact large be this part returning charge, this part returning charge has two kinds: the ball that the ash of drying grate ash bin and chain grate head spill.The granularity of ash is very thin, do not affect pelletizing, the ball that chain grate head shovel flitch spills is taken on defeated grey belt and is entered in batch mixing by the grate plate of upset, the roasting that ball warp is herein crossed drying grate has certain intensity, be difficult for broken, after pelletizer, be rolled into large ball entering, during green-ball screening, again it screened out, by entering again pelletizing after returning charge.This ball is cumulative in pelletizer, finally will affect the efficiency of pelletizer.Make the underproof ball of pelletizer production more than finished ball (qualified ball 9mm to 16mm).Have a strong impact on the production of pelletizing plant.For many years, the exploitation of pellet screening are paid attention to by numerous producers always, but never look for a kind of quite reasonable approach that utilizes.In the past, for Steel Complex, unique approach that utilizes is sold sintering plant by pellet screening cheapness exactly, but for the mine pelletizing plant away from sintering plant, after returning mine and selling sth. at a low price, add expensive line-haul cost, company's benefit will be subject to certain impact, so utilize this approach very uneconomical.Therefore, long-pending as the pelletizing returning charge on mountain in the face of pushing away, be badly in need of finding one reasonably to utilize approach.Therefore by pelletizing bulk cargo grinding below 1mm or thinner, then return to pelletizer, the intensity that is conducive to pressure ball molding and improves finished ball becomes a kind of basic ideas that can deal with problems.

Summary of the invention

The purpose of this utility model is to provide one can increase income profit, obviously improve ripe ball bulk cargo granularity, quality, be conducive to again the bulk cargo treatment unit in the metallurgical briquetting ore deposit of pelletizing.

The purpose of this utility model realizes by following technical proposals:

The bulk cargo treatment unit in metallurgical briquetting of the present utility model ore deposit, comprise the conveyor drive that gathers materials, be located at the bulk cargo buffering chamber of this conveyor drive below that gathers materials, be located at the bypass discharge nozzle of this bulk cargo buffering chamber side, be located at the bypass electricity hydraulic flat gate valve on this bypass discharge nozzle, be located at the electric hydraulic sector gate of this bypass electricity hydraulic flat gate valve below, be located at electric hydraulic flat gate valve under the storehouse of described bulk cargo buffering chamber bottom, be located at the closed vibration feeding machine of described bulk cargo buffering chamber below, be located at the type taper grinder of this closed vibration feeding machine below, be located at the burying scraper of this type taper grinder below, chapelet, finished product material conveyor drive.

Bulk cargo treatment unit and the treatment process feature in metallurgical briquetting of the present utility model ore deposit are:

The utility model is set about from the processing approach of the ripe ball bulk cargo of chain grate machine emphatically, adopts ripe ball bulk cargo griding technology, obviously improve ripe ball bulk cargo granularity, quality, be conducive to pelletizing again.Adopt treatment unit of the present utility model and treatment process can save former ripe ball bulk material conveying equipment, reduce production costs.Particularly major equipment adopts type taper grinder, and its floor space is little, simple in structure, noise is low, wear-resistant.The utility model is recovery system cost at short notice, and creates considerable economic benefit.

Accompanying drawing explanation

Fig. 1 is the bulk cargo treatment unit FB(flow block) in metallurgical briquetting of the present utility model ore deposit.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the bulk cargo treatment unit in a kind of metallurgical briquetting of the present utility model ore deposit, it is characterized in that comprising the conveyor drive 1 that gathers materials, be located at the bulk cargo buffering chamber 2 of this conveyor drive 1 below that gathers materials, be located at the bypass discharge nozzle of these bulk cargo buffering chamber 2 sides, be located at the bypass electricity hydraulic flat gate valve 3 on this bypass discharge nozzle, be located at the electric hydraulic sector gate 4 of these bypass electricity hydraulic flat gate valve 3 belows, when the electric hydraulic sector gate maintenance of maintenance, electric hydraulic flat gate valve can play the effect of cutting off material stream.Be located at electric hydraulic flat gate valve 5 under the storehouse of described bulk cargo buffering chamber 2 bottoms, when closed vibration feeding machine, type taper grinder maintenance, under storehouse, electric hydraulic flat gate valve 5 can play the effect of cutting off material stream.Be located at the closed vibration feeding machine 6 of described bulk cargo buffering chamber 2 belows, be located at the type taper grinder 7 of these closed vibration feeding machine 6 belows, be located at the burying scraper 8 of these type taper grinder 7 belows, chapelet 9, finished product material conveyor drive 10.Adopting chapelet 9 is the floor spaces in order to reduce workshop, saves space.

In Fig. 1, arrow represents bulk cargo flow direction.

Adopt the bulk cargo treatment unit in a kind of metallurgical briquetting of the present utility model ore deposit to the bulk cargo treatment process in metallurgical briquetting ore deposit to be:

1) dust in the ripe ball bulk cargo of chain grate machine head reverse-running section and both sides ash bin is delivered to the interior interim storage of bulk cargo surge bunker 2 by the conveyor drive 1 that gathers materials,

2) when bulk cargo treatment unit breaks down or overhauls, open bypass electricity hydraulic flat gate valve 3 and the electric hydraulic sector gate 4 of bulk cargo surge bunker 2, by bulk cargo outward transport, material stream material amount is controlled by the bypass electricity hydraulic flat gate valve 3 and the electric hydraulic sector gate 4 that are arranged in bypass

3) while normally producing, the bulk cargo in described bulk cargo surge bunker 2 feeds closed vibration feeding machine 6 by electric hydraulic flat gate valve 5 under storehouse, and feeding coal can be realized automatically and controlling by being arranged under the storehouse in bulk cargo surge bunker 2 exits electric hydraulic flat gate valve 5,

4) closed vibration feeding machine 6 is evenly fed to type taper grinder 7 by bulk cargo and carry out ore grinding processing, type taper grinder 7 adopts middling speed pulsation, the continuous roll-in grinding principle of pulsation repeatedly.Material, from top feeds, acts on by deadweight and top pusher the bed of material forming between running roller and liner plate, is subject to the rolling compaction repeatedly of running roller and powdered, and reaching bulk cargo granularity 1mm is finished product material below, finally from type taper grinder 7 bottoms, automatically draw off,

5) finished product material that type taper grinder 7 draws off is sent into chapelet 9 by burying scraper 8,

6) chapelet 9 is delivered to finished product material conveyor drive 10 to pelletizing Preblend system PBS again pelletizing by finished product material.

Type taper grinder in the bulk cargo treatment unit in metallurgical briquetting of the present utility model ore deposit has that volume is little, noise is low, simple in structure, without features such as airborne dusts, can be easily installed in existing workshop, invest the little and effective existing space that utilized.By the ore grinding processing of type taper grinder, former ripe ball bulk cargo granularity can be down to below 1mm, or thinner, then returns to pelletizer, is more conducive to the intensity of pressure ball molding and raising finished ball.

The utility model not only solves the processing problem of ripe ball bulk cargo, and considerable benefit, considers by bulk cargo amount 3%, take one, produce 2000000 t/a pelletizing plants per year as example, Q (bulk cargo amount)=2,000,000 t x3%=60000t, 1 year can increasing benefit X=60000x1200 yuan/ton=7,200 ten thousand yuan.

Claims

1. the bulk cargo treatment unit in a metallurgical briquetting ore deposit, it is characterized in that comprising the conveyor drive that gathers materials, be located at the bulk cargo buffering chamber of this conveyor drive below that gathers materials, be located at the bypass discharge nozzle of this bulk cargo buffering chamber side, be located at the bypass electricity hydraulic flat gate valve on this bypass discharge nozzle, be located at the electric hydraulic sector gate of this bypass electricity hydraulic flat gate valve below, be located at electric hydraulic flat gate valve under the storehouse of described bulk cargo buffering chamber bottom, be located at the closed vibration feeding machine of described bulk cargo buffering chamber below, be located at the type taper grinder of this closed vibration feeding machine below, be located at the burying scraper of this type taper grinder below, chapelet, finished product material conveyor drive.