CN201583146U - Flash furnace nozzle fluidizing and feeding device - Google Patents
Flash furnace nozzle fluidizing and feeding device Download PDFInfo
- Publication number
- CN201583146U CN201583146U CN 200920217920 CN200920217920U CN201583146U CN 201583146 U CN201583146 U CN 201583146U CN 200920217920 CN200920217920 CN 200920217920 CN 200920217920 U CN200920217920 U CN 200920217920U CN 201583146 U CN201583146 U CN 201583146U
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- China
- Prior art keywords
- fluidisation
- fluidizing
- lower box
- upper box
- box
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Abstract
The utility model relates to a flash furnace, in particular to a flash furnace nozzle fluidizing and feeding device which comprises a fluidizing feeder and a pressurized gas supply device, wherein the fluidizing feeder comprises an upper box and a lower box connected into a whole; the upper box is respectively provided with a feed port butted with a chute outlet and a discharge hole butted with a nozzle feed port; a fluidizing plate is arranged between the upper box and the lower box; and the outlet of the pressurized gas supply device is communicated with the cavity of the lower box. In the utility model, the material is led into the upper box through the feed port of the fluidizing feeder, the pressurized gas enters the lower box and is evenly blown to the material through the fluidizing plate arranged between the upper box and the lower box to lead the material to be fluidized and at the suspending and micro boiling state, then the fluidized material can be distributed in the fluidizing feeder like liquid and discharged through the discharging hole, thus achieving the aim of sending the material out stably, continuously and evenly.
Description
Technical field
The utility model relates to the flash stove, particularly relates to a kind of flash stove nozzle fluidisation charging gear.
Background technology
At metallurgy industry, metallurgy of copper field especially, the flash stove is big with its production capacity, energy consumption is low, the excellent plurality of advantages of environmental protection and being widely used.
At present, the material of the flash stove flow process of packing into is feed bin → transporter → elephant trunk → vibra feeder → elephant trunk → central nozzle → reaction tower.Each equipment room becomes step-like distribution, exists certain height difference and horizontal range.The stove material of going into after preparation, mixing, drying, accurate measurement imports in the central nozzle of flash stove by conveying equipments such as drag conveyor or conveying worms, under the effect of gravity, enter reaction tower, around central nozzle, evenly blast the necessary oxygen-enriched air of material reaction simultaneously, material is in reaction tower and suspends and highly dispersed state, mix with the oxygen that blasts and be heated, when material temperature reaches ignition point, carry out oxidation desulfur reaction, above-mentioned whole process only needs 2～3 seconds time.Because reaction was finished in moment, the oxygen amount also also evenly blasts by accurate calculating, and therefore granularity, degree of drying and the distribution situation in reaction tower to material requires high.If it is uneven that material particles mixes with the required oxygen of reaction, partial material peroxidating, oxygen debtization of partial material even non-oxidizing polarization phenomenon will appear, can cause the situation of the low and following raw material of coefficient of oxygen utilization in the time of seriously.So each deflector chute that makes material evenly enter central nozzle is the important step of flash stove quiet run.
Since the granularity very little (80%≤200 order) of material, and handle (moisture≤0.3%) through super-dry again, so mobile very good.Though the delivery rate of transporter is through accurate control, but there are differences because of on its outlet and the entry shape of central nozzle and the direction, and partial material is just prepared burden going into the stokehold, so material must carry out the adjustment of material distribution situation before entering central nozzle.
At present, the adjustment of material distribution situation mainly is to rely on vibra feeder, but owing to have difference in height between transporter and vibra feeder, the distance that vibra feeder is carried is short again (generally≤1.5m); Material has possessed certain kinetic energy and initial velocity after entering into vibra feeder, good mobility in addition, under action of inertia, the time compole that material stops in vibra feeder is short, be subjected to the influence of dispenser vibration very little, partial material can maintain the state that the transporter outlet is concentrated, and flow into fast in some deflector chutes of central nozzle; Along with the increase of difference in height and material amount, the phenomenon of this cloth inequality is just obvious all the more, and its result will cause cloth inequality in the reaction tower; And the oxygen of reaction needed is equally distributed in the cylindrical shell of reaction tower, peroxidating will appear in the less part of material, oxygen debtization will appear in the more part of material, also can have influence on the even distribution of thermic load in the reaction tower simultaneously, can occur when serious that coefficient of oxygen utilization is low, the situation of reaction tower cylindrical shell hot-spot and following raw material.In addition, carry out continuously, therefore require vibra feeder long-time continuous to move owing to produce, the vibration source of dispenser is provided by vibrating motor, and operation exists certain fault rate for a long time, in case break down, production will be forced to interrupt; And the import and export of vibra feeder must adopt flexible interface with docking of elephant trunk, and the interface material after being compressed forms alluvial can influence flowing of material, and long-term work also causes the breakage of flexible interface easily, and maintain and replace can cause equally to produce and interrupt.
The utility model content
Technical problem to be solved in the utility model is to solve the problem that the flash stove is gone into stove material cloth inequality.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted provides a kind of flash stove nozzle fluidizer, comprise fluidisation dispenser and compressed gas feeder, described fluidisation dispenser comprises upper box and the lower box that connects as one, be respectively equipped with charging aperture that connects with the elephant trunk outlet and the discharging opening that docks with the nozzle material-feeding mouth on the described upper box, be provided with the fluidisation plate between upper box and the lower box; The delivery outlet of described compressed gas feeder communicates with the inner chamber of lower box.
In the above-mentioned isolated plant, described fluidisation plate is micro-porous permeable plate, detailed catalogue screen cloth or airy fabric.
The charging aperture of described fluidisation dispenser and discharging opening by flange and equipment interconnection up and down, offer cleaning eye on the fluidisation dispenser respectively.
In the utility model, material imports in the upper box by the charging aperture of fluidisation dispenser, air with pressure enters in the lower box, and air with pressure is evenly blowed to material by the fluidisation plate that is installed between lower box, make fluidization of material, be in and suspend and little fluidized state, discharge, reach stable, continuous, the uniform purpose that material is sent so can be distributed in the fluidisation dispenser and as liquid through discharging opening by the material after the fluidization.
Description of drawings
Fig. 1 is the structural representation of the utility model flash stove nozzle fluidisation charging gear.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
Fig. 1 is the structural representation of the utility model flash stove nozzle fluidisation charging gear, and this flash stove is mainly used in copper, the melting of nickel sulfides concentrate.As shown in Figure 1, the utility model comprises fluidisation dispenser and compressed gas feeder, described fluidisation dispenser comprises upper box 8 and the lower box 10 that connects as one, be provided with fluidisation plate 9 between upper box 8 and the lower box 10, for ease of changing and cleaning, fluidisation plate 9 can adopt the mode of flange to connect and be fixed between the upper and lower casing.Be respectively equipped with charging aperture 6 that connects with the elephant trunk outlet and the discharging opening 7 that docks with the central nozzle deflector chute on the upper box 8, can achieve a butt joint by flange, in addition, for ease of observation situation and cleaning foreign material, also be provided with cleaning eye on upper box 8 and/or the lower box 10.Described fluidisation plate 9 be the order number less than 325 purpose micro-porous permeable plates, detailed catalogue screen cloth or airy fabric, the order number of the granularity of material and fluidisation plate is inversely proportional to, and is as the criterion to guarantee that material can not spill.Described compressed gas feeder comprises Pressure gauge 1, stop valve 2, filter 3, control valve 4, the flowmeter 5 that is connected on successively in the steam line, and the delivery outlet of steam line communicates with the inner chamber of lower box 10.The distribution wind that described compressed gas is used for the oxygen-enriched air or the interior dispersed material of stove of reaction usefulness, pressure is 1KPa～1MPa, flow is 50Nm
3/ h～1000Nm
3/ h (mark cube) makes the air that is blown into can participate in metallurgy calculating, and for example pressure is 1Kpa, and flow is 50Nm
3/ h; Pressure is 100Kpa, and flow is 500Nm
3/ h; Pressure is 1MPa, and flow is 1000Nm
3/ h.
After the utility model, material are discharged by conveyer, import to the charging aperture 6 of fluidisation dispenser, material is imported in the upper box 8 of fluidisation dispenser by charging aperture 6 through elephant trunk; Air with pressure sees through the micropore on the fluidisation plate 9 by the lower box 10 of pipeline importing fluidisation dispenser, and air with pressure evenly enters upper box 8, and the materials that enter in the upper box 8 are floated, and material is in suspends and little fluidized state.Because material possessed certain kinetic energy and initial velocity, be subjected to the influence of gravity again, still keep by charging aperture 6 to the movement tendency of discharging opening 7 and enter by discharging opening 7 in each deflector chute of central nozzle; When material was floated, air with pressure had destroyed the surface tension between material particles again, made material be in fluidization, though enter the material skewness of fluidisation dispenser, can be distributed in the fluidisation dispenser as liquid by the material after the fluidization; For adopt the technology of just preparing burden behind transporter, after the material of mixing entered into the fluidisation dispenser, little fluidized state can make material mix fully.So the fluidisation dispenser can stablize, continuously, uniformly material is sent.
Technological process of the present utility model is as follows: material is delivered to tremie pipe by transporter and in charging aperture imports to upper box from feed bin, air with pressure is adjusted to enter in the lower box and by the fluidisation plate that is installed between lower box behind the flow by control valve air with pressure is evenly blowed to material, material is be in and suspends and the fluidization of little fluidized state, the material of the air that is blown into after fluidisation discharged through discharging opening, enters into each deflector chute of central nozzle.
Good effect of the present utility model is: 1, convey materials is stable, continuous, even, effectively guarantees the utilization rate of the working of a furnace and oxygen.2, owing to material in the process is to be in to suspend and little fluidized state, the various compositions in the material can fully be mixed, can be uniformly distributed in the stove, further guaranteed the utilization rate of the working of a furnace and oxygen.3, compact conformation, fault-free, the investment maintenance cost is low, and technology is simple, and is easy to operate, safe and reliable.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.
Claims (3)
1. flash stove nozzle fluidisation charging gear, it is characterized in that comprising fluidisation dispenser and compressed gas feeder, described fluidisation dispenser comprises upper box and the lower box that connects as one, be respectively equipped with charging aperture that connects with the elephant trunk outlet and the discharging opening that docks with the nozzle material-feeding mouth on the described upper box, be provided with the fluidisation plate between upper box and the lower box; The delivery outlet of described compressed gas feeder communicates with the inner chamber of lower box.
2. flash stove nozzle fluidisation charging gear according to claim 1, it is characterized in that: described fluidisation plate is micro-porous permeable plate, detailed catalogue screen cloth or airy fabric.
3. flash stove nozzle fluidisation charging gear according to claim 1 and 2 is characterized in that: the charging aperture of described fluidisation dispenser and discharging opening by flange and equipment interconnection up and down, offer cleaning eye on the fluidisation dispenser respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920217920 CN201583146U (en) | 2009-10-10 | 2009-10-10 | Flash furnace nozzle fluidizing and feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920217920 CN201583146U (en) | 2009-10-10 | 2009-10-10 | Flash furnace nozzle fluidizing and feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583146U true CN201583146U (en) | 2010-09-15 |
Family
ID=42725148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920217920 Expired - Lifetime CN201583146U (en) | 2009-10-10 | 2009-10-10 | Flash furnace nozzle fluidizing and feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105492854A (en) * | 2013-06-17 | 2016-04-13 | 哈奇有限公司 | Feed flow conditioner for particulate feed materials |
-
2009
- 2009-10-10 CN CN 200920217920 patent/CN201583146U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105492854A (en) * | 2013-06-17 | 2016-04-13 | 哈奇有限公司 | Feed flow conditioner for particulate feed materials |
| US9845992B2 (en) | 2013-06-17 | 2017-12-19 | Hatch, Ltd. | Feed flow conditioner for particulate feed materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |