CN201309959Y - Fluidized roaster with gas burner at fore chamber - Google Patents
Fluidized roaster with gas burner at fore chamber Download PDFInfo
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- CN201309959Y CN201309959Y CNU2008201593930U CN200820159393U CN201309959Y CN 201309959 Y CN201309959 Y CN 201309959Y CN U2008201593930 U CNU2008201593930 U CN U2008201593930U CN 200820159393 U CN200820159393 U CN 200820159393U CN 201309959 Y CN201309959 Y CN 201309959Y
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- cup
- gas burner
- fore chamber
- furnace
- roaster
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Abstract
The utility model relates to a zinc concentrate fluidized roaster. The technical scheme is that the case of the fore chamber is provided with a gas burner; the gas burner is arranged at the middle part of the fore chamber and is distanced from the bottom of the fore chamber of 1.2 to 1.8m; the axis line of the gas burner has an angle of 35 to 45 degrees to furnace wall and is crossed with the axis line of a hose pipe. Since the case of the fore chamber is mounted with a gas burner, the fore chamber has heat supply in the start of furnace, and in the start of furnace, after feeding zinc concentrate into the fore chamber, the roaster can obtain complete combustion reaction and keep heat balance of the furnace body, thereby resolving the problem such as that when feeds material via the fore chamber, the material will deposit at the fore chamber and at the horn mouth at the crossed part between the fore chamber and the hearth; the feed amount of the roaster can reach 5 to 10t/h, to resolve the defects such as that the roaster smoke generated in the start of the roaster in prior art has low concentration and can not be used for following acid production, and only can be discharged via chimney, to cause environment pollution.
Description
Technical field
The utility model relates to a kind of zinc smelting equipment, particularly a kind of zinc ore concentrate fluidizing reactor.
Background technology
The fluidized bed roasting technology is adopted in the roasting of zinc sulfide concentrates more, promptly use fluidizing reactor, long-pending from several squares to Australian Li Sidun spelter works and Belgian Ba Lun zinc factory more than 100 square of its bed surface do not wait, separate unit stove designed productive capacity can reach 800～1000t zinc ore concentrate in the prior art, can be supporting with annual production 10～120,000 ton metallic zinc production equipment.The fluidized bed roasting furnace body is that box hat liner insulating brick serves as a contrast the refractory brick formation again.For preventing the condensation acid corrosion, the box hat outside surface is provided with thermal insulation layer.The foot of fluidizing reactor is provided with air compartment and air intlet pipe, is dispersion plate on it.Be the refractory concrete siege on the dispersion plate, be embedded with the blast cap that aperture is opened in many sides.The cooling tube of waste heat boiler is housed in the fluidized bed, and body of heater also is provided with adapters such as charging opening, slag overflow port, furnace gas export, secondary air import, lighting-up tuyere, and furnace roof has explosionproof hole.
Fluidizing reactor is compared with other type of furnace, has following characteristics: 1. intensity of roasting height; 2. residual sulphur is low in the slag; 3. can the roasting low grade ore; 4. sulfur dioxide concentration height in the furnace gas, sulfur trioxide content are few; 5. can reclaim heat energy morely and produce middle pressure steam, the steam that roasting process produces has 35%～45% usually, obtains by the cooling tube in the fluidized bed; 6. the siege temperature is even; 7. simple in structure, no-rotary part, and reduced investment, maintenance cost is few; 8. operator are few, the level of automation height, and process cost is low; 9. drive to make things convenient for rapidly, the atmospheric pollution that parking causes is few.But fluidizing furnace furnace gas band mine dust is more, and the air-blaster power consumption is bigger.
Now the zinc ore concentrate fluidizing reactor that adopts can be divided into three types: 1. with the straight shape stove of Dao Er type of cup, and the 2. reinforced straight shape stove of Dao Er (Dorr) type wet method, 3. Shandong strange (Lurgi) expands Large Furnace.
Research field of the present utility model belongs to the straight shape stove of the Dao Er type of being with cup, the area of this fluidizing furnace siege has multiple, siege is divided into cup and burner hearth two portions, mix zinc ore concentrate and join cup through the cup filling tube, be boiling state through blasting action, in cup, finish heavy assorted, the preheating and the combustion processes of tentatively catching fire, and then enter burner hearth and finish the fluidized bed roasting process.The cup feeding device large granular materials that mixes the foreign material (as iron nail, nut etc.) in the zinc ore concentrate and influence fluidized bed is deposited and minimizing to the influence of fluidized bed.With 41m
2The Dao Ershi fluidizing furnace is an example, the about 1m of its cup area
2, the about 40m of burner hearth area
2The Dao Ershi fluidizing furnace that adopts coal gas to come blow-on to heat up, the several coal gas burners of one general configuration, be evenly distributed on burner hearth around, and its cup is not provided with burner, as shown in Figure 1, this stove can be kept the body of heater heat balance by the sulfide exothermic heat of reaction in the zinc ore concentrate in the stove when ordinary production, but in the blow-on temperature-rise period, because zinc ore concentrate sulfide can not reach ignition temperature, need to rely on coal gas to heat up to impel zinc ore concentrate sulfide to reach ignition temperature, make zinc ore concentrate sulfide exothermic heat of reaction, reach the ordinary production state.The effect of coal gas burner is when blow-on zinc ore concentrate to be heated, make it reach ignition temperature, because cup our department does not all have coal gas burner near reaching, therefore when blow-on, cup our department and near heat supply are less, and temperature is lower, and cup belongs to the initial section that zinc ore concentrate enters burner hearth, zinc ore concentrate needs again to absorb a large amount of heats from cup after going into stove, causes cup temperature after charging further to descend, and therefore there is following defective in this type of furnace cup in the blow-on process:
1, cup does not have thermal source in the blow-on process;
2, in the blow-on process, when reinforced, the material amount is less than normal, begins to add 2～3t/h, if the material amount increases again, just causes the cup deposition easily from cup;
3, the hydraucone place of cup and burner hearth boundary is easy to generate solid accumulation;
4, after zinc ore concentrate enters cup, can not be immediately fully combustion reactions, also can't keep the body of heater heat balance, cause the fluidizing furnace flue gas that produced in the blow-on process to be crossed and lowly can't be used for follow-up relieving haperacidity production because of concentration, can only externally discharge by chimney, cause environmental pollution.Owing to adopt above-mentioned fluidizing furnace, low concentration SO
2The external drain time of flue gas is longer, and surrounding enviroment are caused to a certain degree pollution.
In sum, the structure of existing Dao Ershi fluidizing furnace needs further to improve.
The utility model content
The purpose of this utility model is to provide a kind of cup to add the fluidizing reactor of coal gas burner, and it can increase charging capacity, avoids occurring the material depositional phenomenon, avoids discharging to contain SO
2Flue gas, realize the environmental protection blow-on, surrounding enviroment are not impacted.
The technical solution of the utility model is:
A kind of cup adds the fluidizing reactor of coal gas burner, and its siege comprises cup and burner hearth, and the housing of described cup is provided with reinforced elephant trunk, it is characterized in that: the housing of described cup is provided with coal gas burner.
As to further improvement of the utility model, described coal gas burner is positioned at the medium position of cup, apart from cup bottom 1.2～1.8m.
As to further improvement of the utility model, the axis of described coal gas burner and furnace wall form 35 °～45 ° angle, with the axes intersect fork of described elephant trunk.
The beneficial effects of the utility model are:
Because the utility model is installed coal gas burner on the shell of the cup of fluidizing furnace, make cup the thermal source supply be arranged in the blow-on process, in the blow-on process, after making zinc ore concentrate begin to enter cup, get final product abundant combustion reactions, keep the body of heater heat balance, solved from cup when reinforced, material is in cup and the cup sedimentary problem in hydraucone place with the burner hearth boundary; Can make the inlet amount of fluidizing furnace reach 5～10t/h, the fluidizing furnace flue gas of avoiding fluidizing furnace of the prior art to be produced in the blow-on process is low excessively because of concentration, can't be used for follow-up relieving haperacidity production, can only solve consequent problem of environmental pollution by the defective of the external discharging of chimney.
Because the utility model is arranged on coal gas burner the cup middle part and makes its axis and furnace wall form 35 °～45 ° angle, make it axes intersect fork with elephant trunk, the flame that from coal gas burner, sprays with from elephant trunk, add mix the zinc ore concentrate collision that intersects, reach better heats.
The utility model is described in further detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the cross-sectional view of former fluidizing furnace;
Fig. 3 is an A-A cross-sectional view of the present utility model;
Fig. 4 is a B of the present utility model place local structure enlarged diagram.
Among the figure: 1-burner hearth coal gas burner; The 2-burner hearth; The 3-cup; 4-cup coal gas burner; 5-cup bottom; The 6-exhanst gas outlet; The 7-elephant trunk; The 8-airduct; The 9-gas pipe.
Embodiment
A kind of cup adds the fluidizing reactor of coal gas burner, as Fig. 1, Fig. 3, shown in Figure 4, its siege comprises cup 3 and burner hearth 2, the hearth wall of burner hearth 2 is provided with six burner hearth coal gas burners 1, the top of burner hearth 2 is provided with exhanst gas outlet 6, the housing of cup 3 is provided with reinforced elephant trunk 7 and cup coal gas burner 4, coal gas burner 4 comprises airduct 8 and gas pipe 9, coal gas burner 4 is positioned at cup door front upper, the medium position of chamber 3 ranks forefront, height H apart from cup 3 bottoms is 1.2m, and the angle α that the axis of coal gas burner 4 and cup furnace wall form is 35 °, with the axes intersect fork of elephant trunk 7.
A kind of cup adds the fluidizing reactor of coal gas burner, as Fig. 1, Fig. 3, shown in Figure 4, its siege comprises cup 3 and burner hearth 2, the hearth wall of burner hearth 2 is provided with six burner hearth coal gas burners 1, the top of burner hearth 2 is provided with exhanst gas outlet 6, the housing of cup 3 is provided with reinforced elephant trunk 7 and cup coal gas burner 4, coal gas burner 4 comprises airduct 8 and gas pipe 9, coal gas burner 4 is positioned at cup door front upper, the medium position of chamber 3 ranks forefront, height H apart from cup 3 bottoms is 1.8m, and the angle α that the axis of coal gas burner 4 and cup furnace wall form is 45 °, with the axes intersect fork of elephant trunk 7.
Claims (3)
1, a kind of cup adds the fluidizing reactor of coal gas burner, and its siege comprises cup and burner hearth, and the housing of described cup is provided with reinforced elephant trunk, it is characterized in that: the housing of described cup is provided with coal gas burner.
2, cup according to claim 1 adds the fluidizing reactor of coal gas burner, it is characterized in that: described coal gas burner is positioned at the medium position of cup, apart from cup bottom 1.2～1.8m.
3, cup according to claim 1 adds the fluidizing reactor of coal gas burner, it is characterized in that: the axis of described coal gas burner and furnace wall form 35 °～45 ° angle, with the axes intersect fork of described elephant trunk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593930U CN201309959Y (en) | 2008-11-25 | 2008-11-25 | Fluidized roaster with gas burner at fore chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593930U CN201309959Y (en) | 2008-11-25 | 2008-11-25 | Fluidized roaster with gas burner at fore chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201309959Y true CN201309959Y (en) | 2009-09-16 |
Family
ID=41107211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201593930U Expired - Fee Related CN201309959Y (en) | 2008-11-25 | 2008-11-25 | Fluidized roaster with gas burner at fore chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201309959Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021317A (en) * | 2010-12-16 | 2011-04-20 | 葫芦岛锌业股份有限公司 | Oxidizing roasting process by blending high fluorine chlorine zinc oxide complex material |
| CN102564126A (en) * | 2012-03-01 | 2012-07-11 | 中国恩菲工程技术有限公司 | Copper-nickel high-sulfonium fluidization roasting furnace |
-
2008
- 2008-11-25 CN CNU2008201593930U patent/CN201309959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021317A (en) * | 2010-12-16 | 2011-04-20 | 葫芦岛锌业股份有限公司 | Oxidizing roasting process by blending high fluorine chlorine zinc oxide complex material |
| CN102021317B (en) * | 2010-12-16 | 2012-07-04 | 葫芦岛锌业股份有限公司 | Oxidizing roasting process by blending high fluorine chlorine zinc oxide complex material |
| CN102564126A (en) * | 2012-03-01 | 2012-07-11 | 中国恩菲工程技术有限公司 | Copper-nickel high-sulfonium fluidization roasting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20151125 |