CN201032349Y

CN201032349Y - One-furnace two-stage fluidized roaster

Info

Publication number: CN201032349Y
Application number: CNU2007200936093U
Authority: CN
Inventors: 张清波; 汪丹; 鲁玉春; 谷志君
Original assignee: Changchun Gold Research Institute
Current assignee: Changchun Gold Research Institute
Priority date: 2007-04-24
Filing date: 2007-04-24
Publication date: 2008-03-05
Anticipated expiration: 2017-04-24

Abstract

The utility model relates to a fluosolid roaster of one roaster with two sections, which pertains to the enginery. A refractory insulating layer is arranged inside a steel sheet shell of the roaster; the lower part is a grid plate lift on which a wind cowl is arranged; on side of a roaster body is provided with a cantilever screw feeder and a discharge opening at the other side is provided with a sealed discharge valve; an upper interior of the roaster body is a hearth and a fluidizaton firing chamber at the lower part is divided by a partition wall into a front fluidizaton firing chamber and a rear fluidizaton firing chamber which are dependent; the lower part of the partition wall is provided with a material channel; a wind box below the roaster body is divided into a front wind box and a rear wind box by a clapboard of the wind box of which the position corresponds to that of the partition wall; a surface of the roaster body is provided with a flue port. The utility model has the advantages of being capable of carrying out independent operation of two sections according to ore property, guaranteeing that the ore can be continuously roasted under different operation conditions of two sections of one roaster at one time, achieving the best roasting effect and having strong practicality.

Description

One one-furnace-two-section boiling baking stove

Technical field

The utility model relates to mechanical, a particularly a kind of one-furnace-two-section boiling baking stove.

Background technology

As everyone knows, along with the application and the development of gold industry, difficult-treating gold mine resource proportion is increasing; In Yunnan of China, west areas such as expensive, river, Shan, sweet, osmanthus are just containing card crop type difficult-treating gold mine resource in large quantities, total amount of metal is about more than 500 tons; The unmanageable process characteristic of card crop type gold ore is its mineralogical characteristic with carbonaceous gold ore stone, promptly except that gold with the fine granular embedding cloth, still contain more interference effect element, as the clay class mineral of arsenic, sulphur, antimony, organic charcoal or other ADSORPTION OF GOLD cyano complex;

Roasting technique is applied rapidly in gold production and develops and mainly has benefited from roasting technique through engineering approaches The Application of Technology and development, has benefited from updating with perfect of novel roaster; Common roaster has original single-chamber furnace, multiple hearth furnace, rotary kiln, the fluidizing reactor, circulating roaster, double-deck roaster etc. of widespread usage at present, though each generation along with novel roaster, roasting technique and effect are all improved to some extent with perfect, but still exist scope of application restriction, rate of roasting to reach problems such as roasting effect is relatively poor more slowly, need be improved.

The utility model content

The purpose of this utility model is to provide an a kind of one-furnace-two-section boiling baking stove, has solved problems such as the roaster scope of application commonly used is limited, roasting effect is relatively poor.

The technical solution of the utility model is: in a fluidizing reactor, be separated into two fluidized-bed chambers independently separately by partition wall with fluidized bed roasting is furnace bed, the shared burner hearth in former and later two chambers, air supplying chamber is separated into two air supplying chamber that can control separately according to partition wall position correspondence, and the material of cup must just can enter the chamber, back by the material channel of partition wall bottom and continues roasting in two bed chambers; By cup fluidization bed top feed, back chamber fluidization bed top overflow discharge; Like this, can strictness avoid short circuit phenomenon, guarantee material in a roaster, under former and later two chamber different work conditions, finish two-stage roasting, obtain satisfied roasting effect and qualified roasted product.

Structure of the present utility model is: be provided with refractory insulating layer in the roaster outer cover of steel plate, the bottom is the hardware cloth aerofoil, and the refractory material LIFT is arranged on the air distribution plate, and this air distribution plate: LIFT is provided with blast cap; One side of roaster body of heater is provided with the cantilever screw(-type) feeder, and the opposite side discharge port is provided with the sealing discharge valve; The body of heater internal upper part is a burner hearth, and the fluosolids roasting chamber of bottom is divided into independently chamber behind the fluosolids roasting cup and fluosolids roasting by partition wall, and this partition wall bottom is provided with material channel; Air compartment and back air compartment before air compartment below the body of heater is divided into by air compartment baffle, the position of this air compartment baffle is corresponding with the position of partition wall; The top on body of heater surface is provided with floss hole.

Advantage of the present utility model is: can require to carry out two sections separate operatons according to ore character, guarantee that ore is disposable in a roaster to finish two sections continuous roastings that operating condition is different, reach best roasting effect, and practical.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment:

As shown in Figure 1, the utility model by cantilever screw(-type) feeder 1, fluosolids roasting cup 2, partition wall 3, material channel 4, fluosolids roasting after chamber 5, sealing discharge valve 6, preceding air compartment 7, back air compartment 8, air compartment baffle 9, outer cover of steel plate lO, refractory insulating layer 11, blast cap 12, air distribution plate LIFT 13, burner hearth 14 and floss hole 15 form, wherein, be provided with refractory insulating layer 11 in the roaster outer cover of steel plate 10, the bottom is an air distribution plate LIFT 13, and this air distribution plate LIFT 13 is provided with blast cap 12; One side of roaster body of heater is provided with cantilever screw(-type) feeder 1, the opposite side discharge port is provided with sealing discharge valve 6: the body of heater internal upper part is a burner hearth 14, the fluosolids roasting chamber of bottom is divided into independently chamber 5 behind the fluosolids roasting cup 2 and fluosolids roasting by partition wall 3, and these partition wall 3 bottoms are provided with material channel 4; Air compartment 7 and back air compartment 8 before air compartment below the body of heater is divided into by air compartment baffle 9, the position of this air compartment baffle 9 is corresponding with the position of partition wall 3: the body of heater surface is provided with floss hole 15.

During use, require the breeze for preparing according to ore character, the fluosolids roasting cup 2 that feeds fluidizing reactor by the spiral arm screw(-type) feeder 1 that seals carries out one section roasting, feed the material of the fluosolids roasting cup 2 of fluidizing reactor, according to major parameters such as the strict control mine-supplying quantity of ore character, wind supply quantity, air feed oxygen content, sintering temperature, roasting time, finish first section roasting; Through the material after one section roasting according to setting path, second section roasting carried out in chamber 5 after relying on the gravity flow of fluidized-bed layered material potential difference to enter the fluosolids roasting of fluidizing reactor, material behind the fluosolids roasting in the chamber 5 will be finished second section roasting according to major parameters such as the strict control wind supply quantity of ore character, air feed oxygen content, sintering temperature, roasting time equally; The flue dust of first section roasting and second section roasting generation combines by floss hole 15 discharges at the expanding reach of burner hearth 14; Through two-stage roasting, the material that roasting is good takes the overflow marker method to discharge out of the furnace by sealing discharge valve 6.

Claims

1. one-furnace-two-section boiling baking stove, it is characterized in that: be provided with refractory insulating layer (11) in the roaster outer cover of steel plate (10), the bottom is air distribution plate LIFT (13), and this air distribution plate LIFT (13) is provided with blast cap (12); One side of roaster body of heater is provided with cantilever screw(-type) feeder (1), and the opposite side discharge port is provided with sealing discharge valve (6); The body of heater internal upper part is burner hearth (14), and the fluosolids roasting chamber of bottom is divided into independently chamber (5) behind the fluosolids roasting cup (2) and fluosolids roasting by partition wall (3), and this partition wall (3) bottom is provided with material channel (4); Air compartment below the body of heater is divided into preceding air compartment (7) and back air compartment (8) by air compartment baffle (9), and the position of this air compartment baffle (9) is corresponding with the position of partition wall (3); The body of heater surface is provided with floss hole (15).