CN201583137U

CN201583137U - Boiling-bed roaster

Info

Publication number: CN201583137U
Application number: CN2009202595660U
Authority: CN
Inventors: 曹文法; 侯建琼; 方家勋
Original assignee: CHENZHOU FENGYUE NON-FERROUS METAL SMELTING Co Ltd
Current assignee: CHENZHOU FENGYUE NON-FERROUS METAL SMELTING Co Ltd
Priority date: 2009-12-08
Filing date: 2009-12-08
Publication date: 2010-09-15
Anticipated expiration: 2019-12-08

Abstract

The utility model discloses a boiling-bed roaster used for roasting brasses for acid making and roasting zinc concentrate, comprising a roaster body, a roaster door, a feed port and an overflow slag discharge port which are arranged at the lower part of the roaster body, an air chamber arranged at the bottom of a roaster hearth, an air distribution box arranged above the air chamber, and a hood arranged on the air distribution box, wherein the lower part of the roaster body is provided with a plurality of coarse sand discharge ports; the central lines of the discharge ports are parallel to the top of the hood, and the diameter thereof is 80-100mm; and each discharge port is internally provided with a withdrawable solid iron rod. When discharging coarse sand, a cold water pipe with the diameter of 20mm extends into the roaster hearth along the coarse sand discharge port, the coarse sand can roll out and can be discharged by one-time operation, and after the coarse sand is discharged, one solid iron rod is used for plugging the discharge port, thus thoroughly solving the problems of the traditional boiling-bed roaster that as the slag discharge through the overflow port is incomplete, the coarse sand is deposited and the air exhaust of the hood is influenced, the boiling-bed roaster can not be boiled and causes dead roasting; and the boiling-bed roaster has simple equipment, little investment and simple operation.

Description

Fluidizing reactor

Technical field

The utility model relates to a kind of fluidized bed furnace, specifically is meant the fluidizing reactor that can be used for roasting pyrite relieving haperacidity and roasting zinc concentrate.

Background technology

Pyrite-based sulfuric acid production, other sulfur-bearing waste materials and some non-ferrous metal desulfurization of raw material, roasted concentrate etc. all be unable to do without fluidized bed furnace, and through the development of over half a century, fluidized bed furnace has become unique roasting apparatus of above-mentioned material desulfurization.General fluidized bed furnace is made up of body of heater, fire door, charging aperture, overflow and slag mouth, air compartment, cloth bellows, blast cap, existing boiling roaster magnetic pyrite process medium coarse sand depositional phenomenon is serious, main cause one is that magnetic pyrite is inflammable, easy-sintering, bad preservation, cause increasing into the stove mineral aggregate, furnace temperature is in case above 1000 ℃, between thick material very easily clinkering become the ball of hollow, maximum gauge can reach 10mm; The 2nd, the roasting characteristic of magnetic pyrite itself, the combustion reaction when high-temperature roasting of magnetic sulphur ore deposit is violent not as common troilite, and particle diameter can not diminish after its ore deposit coarse granule was gone into stove, can increase as first reason is said on the contrary.After coarse sand reached some, material particular diameter increased rapidly slightly in the stove, particle size range broadens, and causes boiling situation deterioration in the stove, and boiling bed moves on progressively, until the disappearance blowing out.The production cycle of fluidized bed furnace, generally two or three months at most, couple of days is specifically decided on kind, granularity, the operation of raw material, and is resumed production and need expend great amount of manpower and material resources, financial resources at least.Traditional deslagging mode all is to rely on the flowability of thing class self to discharge from overfall, and this slag is the thing class of boiling fully, and the material of intuitively going up slag is directly thick, particle size range is not wide, though also take a little coarse sand out of, but not thorough, accumulate over a long period, coarse sand will deposit in the stove.To existing patent inquiry, wherein have many patents to do some improvement, but all effect is not fine by the State Intellectual Property Office website at how reducing generation coking and deslagging mode.

Summary of the invention

The purpose of this utility model is to provide a kind of change traditional Slagoff method, can extend manufacture cycle, the roasting acid fluidized bed furnace that reduces production costs.

In order to achieve the above object, the utility model comprises body of heater, is arranged on the fire door of body of heater bottom, charging aperture, overflow and slag mouth, be arranged on the air compartment of burner hearth bottom, the cloth bellows of air compartment top and be arranged on blast cap on the cloth bellows, some coarse sand floss holes are set in the body of heater bottom, floss hole center line and blast cap top maintain an equal level, and its diameter is 80～100mm, is built-in with the solid iron rod that can extract at floss hole.

After adopting such structure, arrange that the cold water pipe with a diameter 20mm puts in burner hearth along the coarse sand floss hole when thick, coarse sand will billow, coarse sand can disposable row finish in the stove, after coarse sand has been arranged, blocks floss hole with a solid iron rod and gets final product, it is incomplete by the overfall deslagging thoroughly to solve traditional fluidizing reactor, the coarse sand deposition, and influence the blast cap air draft, cause the fluidized bed furnace boiling not, cause the problem of dead stove, the utility model fluidizing reactor equipment is simple, invests little, simple to operate.

Description of drawings

The vertical profile of accompanying drawing the utility model fluidizing reactor is looked schematic diagram;

Shown in the figure: 1, body of heater, 2, burner hearth, 3, fire door, 4, charging aperture, 5, the overflow and slag mouth, 6, air compartment, 7, the cloth bellows, 8, blast cap, 9, the coarse sand floss hole, 10, solid iron rod.

The specific embodiment

Below in conjunction with drawings and Examples the utility model technology is described further.

Fluidizing reactor as shown in the figure, comprise body of heater 1, be arranged on fire door 3, charging aperture 4, the overflow and slag mouth 5 of body of heater bottom, be arranged on the air compartment 6 of burner hearth 2 bottoms, the cloth bellows 7 of air compartment top and be arranged on blast cap 8 on the cloth bellows, some coarse sand floss holes 9 are set in the body of heater bottom, floss hole center line and blast cap 8 tops maintain an equal level, and its diameter is 80～100mm, is built-in with the solid iron rod 10 that can extract at floss hole 9.During work, the thing class is sent into burner hearth 2 by charging aperture 4, fluidized bed roasting in burner hearth 2, produce high-temperature flue gas, discharge by body of heater 1 top again, the coarse sand that produces in roasting process is deposited on burner hearth 2 bottoms, a part is discharged by the overflow and slag mouth, major part is deposited on blast cap 8 air drafts on the burner hearth 2 bottom influences cloth bellows 7, during deslagging, the cold water pipe of a diameter 20 is stretched into burner hearth 2 along the coarse sand floss hole, coarse sand will be discharged by the coarse sand floss hole under pressure, after coarse sand has been arranged, solid iron rod is blocked floss hole.

Claims

1. fluidizing reactor, comprise body of heater, be arranged on fire door, charging aperture, the overflow and slag mouth of body of heater bottom, be arranged on the air compartment of burner hearth bottom, the cloth bellows of air compartment top and be arranged on blast cap on the cloth bellows, it is characterized in that: some coarse sand floss holes are set in the body of heater bottom, floss hole center line and blast cap top maintain an equal level, and its diameter is 80～100mm, is built-in with the solid iron rod that can extract at floss hole.