CN201121136Y - Equipment for roasting to produce cobaltic-cobaltous oxide powder with spray - Google Patents
Equipment for roasting to produce cobaltic-cobaltous oxide powder with spray Download PDFInfo
- Publication number
- CN201121136Y CN201121136Y CNU2007200148733U CN200720014873U CN201121136Y CN 201121136 Y CN201121136 Y CN 201121136Y CN U2007200148733 U CNU2007200148733 U CN U2007200148733U CN 200720014873 U CN200720014873 U CN 200720014873U CN 201121136 Y CN201121136 Y CN 201121136Y
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- stoving oven
- equipment
- cobaltosic oxide
- oxide powder
- combustion
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Abstract
The utility model belongs to the technical fields of the cobaltosic oxide preparation and the chlorhydric acid recovery, in particular to an equipment used for the preparation of cobaltosic oxide through mist spray and roasting methods. The equipment comprises a waste acid pot used for collecting waste acid, a waste acid filter, a pre-concentrator, a pneumatic control valve, a roaster, a spraying device arranged at the top of the roaster, a burner arranged on the roaster body along the tangential line, an oxide block breaking machine arranged at the bottom part of the roaster, a rotating valve arranged at the bottom part of the roaster, the cobaltosic oxide powder pneumatic conveying and collecting system, an absorption tower, a smoke exhaust fan, a washing tower used for the first time, the second time and the third time washing, a water supply device for rinsing water, a regenerated chlorhydric acid pot, a delivery line, a gas-liquid separator, an exhaust fan, a dust catcher, a chimney, a newly-added dust arrester, a pneumatic feeding device, a feeding pipeline online cleaning device, a combustion improving heating device, a back blowing flow promoting device, a dechloridizing device, an air purifier and a secondary absorption tower. The equipment has the advantages that the reaction temperature of the roaster is more stable, and the adjustable range of the reaction temperature is enlarged; the exhaust emission reaches the standard; the equipment utilization rate of the roaster is enhanced; and the equipment causes no pollution to the environment.
Description
Technical field
The utility model relates to the preparation tricobalt tetroxide and reclaims the equipment of hydrochloric acid technical field, particularly a kind of preparing cobaltosic oxide powder by spray roasting.
Background technology
In the preparation process of cobalt oxide, can produce the cobalt compounds of certain density HCl and 140g/L.In preparation process, the ratio regular meeting of HCl progressively increases, and behind the state of reaching capacity, dissolving will stop.In order to keep proceeding of dissolution process, cobalt oxide among the HCl should be extracted, simultaneously acid strength is reduced, need a cover preparation technology and an equipment, the HCl solution that will contain aforementioned proportion is delivered in the preparation facilities, generates tricobalt tetroxide, has also obtained concentration simultaneously and has been about 15% hydrochloric acid, turn back in the dissolution system recycling spent acid solution again.Its process is: the cobalt oxide solution that will contain certain proportion concentration and content is collected in the spent acid jar, sends into preconcentrator with the spent acid pump through waste acid filter, with the pneumatic valve automatic control flow of having regulated.Spent acid is delivered to the preconcentrator top by the preconcentrator recycle pump and is sprayed.Carry out direct heat exchange with the furnace gas from stoving oven, the part moisture content in the spent acid is evaporated, spent acid solution is concentrated.Spent acid solution after concentrating by the stoving oven feeding pump deliver to the stoving oven top through waste acid filter, advance in the stoving oven through spray boom, nozzles spray again.
The stoving oven body is a box hat, the liner acid-resistant refractory brick.Be tangent line and arrange two burners on the stoving oven body, incendiary heat is dried the pre-concentration acid droplet from nozzle, and in the heating region of stoving oven, resolves into Co
3O
4And HCl.Solid Co
3O
4Particle drops in the stoving oven lower taper body with powder type, and emits with a rotary valve.An oxide blocks crusher is installed on rotary valve top.
Stoving oven gas is made up of combustion exhaust, water vapour and hydrogen chloride gas, left stoving oven from the top of stoving oven and by whirlwind divide detailed from device with contained Co
3O
4The powder major part is separated, and isolated oxide compound is by the rotary valve discharging and turn back to stoving oven.Roasting gas enters preconcentrator then, and in this, high-temperature gas directly contacts with recycle acid, and only residual small amounts thing in cooling and the purge gas, and enter in the absorption tower.
Rinse water from absorb cat head and spray into and with the upstream countercurrent flow, absorb hydrogen chloride in gas and form regeneration hydrochloric acid and go forward side by side into the regeneration hydrochloric acid tank.
Also comprise equipment such as washing tower, gas-liquid separator, exhaust gas fan, cobaltosic oxide pneumatic conveyor system in the production line.
There is following defective in existing tricobalt tetroxide production equipment:
1, stoving oven is established the pre-temperature-control device of stove, can only control throat temperature, and the chamber temperature that regenerative process plays a crucial role is not controlled;
2, logistics is not smooth in the stoving oven, causes roasting efficient not high;
3, therefore the easy oxidation of ordinary steel Q235B steel used of stoving oven body of heater can pollute furnace charge;
4, complete assembly is worked under negative pressure state, makes regenerating acid and institute's discharge tail gas dustiness exceed standard;
5, through the waste acid filter feed, the spent acid pump is subjected to mechanical wear and corrosion to preconcentrator easily, thereby causes the fluctuation of flow and pressure with the spent acid pump;
6, stoving oven feed pipeline can form xln in the course of the work on tube wall, must regularly clear numerous, and the clear numerous maintenance work of this pipeline is very difficult, workload is big, pipeline must be disassembled and uses artificial pipe blow-through, and is time-consuming, take material.
Therefore must be improved.
Summary of the invention
The purpose of this utility model be to provide a kind of can guarantee quality product, stable technical process, discharging less, the equipment of the effective preparing cobaltosic oxide powder by spray roasting of control.
The purpose of this utility model realizes by following technical proposals:
Equipment according to preparing cobaltosic oxide powder by spray roasting of the present utility model, comprise oxide blocks crusher, cobaltosic oxide powder pneumatic conveyor system, absorption tower, smoke exhaust fan, washing tower, rinse water water supply installation, regeneration hydrochloric acid tank, washing tower, gas-liquid separator, chimney, the PLC control device of spent acid jar, waste acid filter, preconcentrator, pneumatic adjusting valve, stoving oven and the furnace roof flusher thereof of collecting spent acid solution, the burner that on the stoving oven body, is the tangent line layout, rotary valve, stoving oven bottom, it is characterized in that:
1) dust catcher is set between described spent acid jar and preconcentrator, the roasting gas piping of stoving oven dust catcher therewith is connected,
2) with combustion air pipeline that described stoving oven is connected on air purifier is set,
3) chlorine purifier is set between described oxide blocks crusher and cobaltosic oxide pneumatic conveyor system,
4) between one of described absorption tower and smoke exhaust fan, two-level absorption tower is set.
Heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus that is connected with described PLC control device.
The lower end of described stoving oven is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow inlet that is located at the stoving oven lower end, one end back blowing flow gas inlet therewith links to each other and blowback airline that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline are formed.
The top of described stoving oven is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet links to each other and the combustion-supporting airline of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this combustion-supporting airline of heating are formed.
Described stoving oven is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by the clean-out system circulation tank, the feeding pump that is connected of clean-out system circulation tank therewith, this feeding pump is connected with stoving oven feed pipeline, there is a new water lines to be connected with stoving oven feed pipeline, one scavenging solution return line, one end is connected the end of stoving oven feed pipeline, and the other end is connected with the clean-out system circulation tank, forms an online cleaning system of circulation.
Described stoving oven is provided with Pneumatic feeding device, this Pneumatic feeding device is by the compressed air inlet pipe that is connected with described spent acid jar, the air filter that is located on this compressed air inlet pipe is formed, and described spent acid jar directly is connected with stoving oven feed pipeline.
Described clean-out system circulation tank directly is connected with described spent acid jar.
The furnace shell of described stoving oven is the stainless steel furnace shell.
According to equipment of the present utility model, have following advantage:
1, owing to be provided with the furnace temperature detection control apparatus, can be controlled the direct Heating temperature that influences the heating zone, stoving oven middle part of roasting efficient and effect in heating zone, stoving oven middle part.Owing to be provided with the combustion-supporting warming apparatus in top, make that the temperature of reaction of stoving oven is more stable simultaneously, enlarged the regulation range of temperature of reaction.
2, owing to a dust catcher is being set between spent acid jar and the preconcentrator and on the combustion air pipeline, air purifier is being set, absorbed the grit in spent acid stoste and the stoving oven furnace gas, realize final dusting, made final exhaust gas discharged dustiness reach emission standard.
3,, make that the cl content in the gas of emission abatement reaches emission standard because a chlorine purifier is set between oxide blocks crusher and cobaltosic oxide pneumatic conveyor system.
4, owing between one of absorption tower and smoke exhaust fan, two-level absorption tower is set, realize the secondary absorption, improved specific absorption, also further reduced the cl content in the discharging furnace gas.
5, owing to be provided with the back blowing flow device in the lower end of stoving oven, the top is provided with combustion-supporting warming apparatus, make the Flow of Goods and Materials in the stoving oven more smooth and easy, make the furnace gas cooling of furnace roof, funnel temperature is controlled at about 450 ℃, and the method for control furnace temperature is more complete, and reaction in furnace is more complete, efficient is higher, better effects if.
6, be provided with stoving oven feed pipeline on-line cleaning device, at any time can carry out on-line cleaning to stoving oven feed pipeline, not only improved the plant factor of stoving oven, and reduced clear numerous maintenance load of pipeline and relevant maintenance cost, can not produce and pollute environment.
7, owing to change the feeding pump feed into pneumatic feeding, stoving oven can be worked continuously, improved the stability of feed, but also can give supplemental oxygen in the stoving oven, thereby further improved the plant factor and the working efficiency of stoving oven.
8, because the furnace shell of stoving oven is the stainless steel furnace shell, therefore can avoid polluting furnace charge because of furnace shell is corroded.
Description of drawings
Fig. 1 is a device structure block diagram of the present utility model.
Fig. 2 is the structural representation of back blowing flow device of the present utility model and combustion-supporting warming apparatus.
Fig. 3 is the structural representation of stoving oven feed pipeline on-line cleaning device of the present utility model.
Fig. 4 is the structural representation of Pneumatic feeding device of the present utility model.
Embodiment
Embodiment below in conjunction with accompanying drawing further specifies embodiment of the present utility model.
As shown in Figure 1, the equipment of preparing cobaltosic oxide powder by spray roasting of the present utility model, comprise the spent acid jar 15 of collecting spent acid, waste acid filter 16, preconcentrator 17, stoving oven 24 and furnace roof flusher thereof, on the stoving oven body, be tangent line and arrange burner, rotary valve, the oxide blocks crusher (not shown) of stoving oven bottom, cobaltosic oxide powder pneumatic transport gathering system 27, absorption tower 14, smoke exhaust fan 10, washing tower 8,5,2, rinse water water supply installation 6,3, regeneration hydrochloric acid tank 13, droplet separator 9, chimney 29, the PLC control device is characterized in that:
1) dust catcher 18 is set between described spent acid jar 15 and preconcentrator 17, the roasting gas piping 23 of stoving oven 24 dust catcher 18 therewith is connected,
2) with combustion air pipeline 20 that described stoving oven 24 is connected on air purifier 21 is set,
3) between described oxide blocks crusher and cobaltosic oxide pneumatic transport gathering system 27, a chlorine purifier 25 is set,
4) between one of described absorption tower 14 and smoke exhaust fan 10, two-level absorption tower 11 is set.
As shown in Figure 1, de-salted water pipeline 1 is washed tower 2 with three numerous and is connected, rinse water water supply installation 3,6 is connected with strainer 4,7 respectively, strainer 4,7 is washed tower 5 with the secondary numerous respectively, a numerous is washed tower 8 and is connected, the acid tube road 12 of sending of regeneration hydrochloric acid tank 13 is connected with pickling lines, iron powder pneumatic transport gathering system 27 is connected with iron powder packing plant 28 with fly-ash separator 26 respectively, and gas line 22 is connected with stoving oven 24, and three numerous are washed tower 2 and are connected with chimney 29.
Heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus (not shown) that is connected with described PLC control device.
As shown in Figure 2, the lower end of described stoving oven 24 is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow inlet 243 that is located at the stoving oven lower end, one end back blowing flow gas inlet 243 therewith links to each other and blowback airline 244 that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline are formed.
As shown in Figure 2, the top of described stoving oven 24 is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet 240 of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet links to each other and the combustion-supporting airline 241 of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve 242 that are located on this combustion-supporting airline of heating are formed.
As shown in Figure 3, described stoving oven 24 is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by clean-out system circulation tank 248, the feeding pump 249 that is connected of clean-out system circulation tank 248 therewith, this feeding pump 249 is connected with stoving oven feed pipeline 245, there is a new water lines 246 to be connected with stoving oven feed pipeline 245, there are a scavenging solution return line 247 1 ends to be connected the end of stoving oven feed pipeline 245, the other end is connected with clean-out system circulation tank 248, forms an online cleaning system of circulation.
As shown in Figure 4, described stoving oven is provided with Pneumatic feeding device 19, this Pneumatic feeding device is by the compressed air inlet pipe 191 that is connected with described spent acid jar 15, the air filter 193 and the control valve 192 that are located on this compressed air inlet pipe 191 are formed, and described spent acid jar is connected with stoving oven feed pipeline 245 through 15 preconcentrators 17 and/or dust catcher 18 (see figure 1)s.
As shown in Figure 4, described clean-out system circulation tank 248 directly is connected with described spent acid jar 15.
The furnace shell of described stoving oven 24 is the stainless steel furnace shell.
The technology of preparing cobaltosic oxide powder by spray roasting of the present utility model and equipment thereof have following advantage: the temperature of reaction of stoving oven is more stable, has enlarged the regulation range of temperature of reaction; Exhaust gas discharged reaches emission standard; Improved the plant factor of stoving oven; Can not produce and pollute environment.
Claims (8)
1. the equipment of a preparing cobaltosic oxide powder by spray roasting, comprise oxide blocks crusher, cobaltosic oxide pneumatic conveyor system, absorption tower, smoke exhaust fan, washing tower, rinse water water supply installation, regeneration hydrochloric acid tank, washing tower, gas-liquid separator, the PLC control device of spent acid jar, waste acid filter, preconcentrator, pneumatic adjusting valve, stoving oven and the furnace roof flusher thereof of collecting spent acid, the burner that on the stoving oven body, is the tangent line layout, rotary valve, stoving oven bottom, it is characterized in that:
1) dust catcher is set between described spent acid jar and preconcentrator, the roasting gas piping of stoving oven dust catcher therewith is connected,
2) with combustion air pipeline that described stoving oven is connected on air purifier is set,
3) chlorine purifier is set between described oxide blocks crusher and cobaltosic oxide pneumatic conveyor system,
4) between one of described absorption tower and smoke exhaust fan, two-level absorption tower is set.
2. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1 is characterized in that heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus that is connected with described PLC control device.
3. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1, the lower end that it is characterized in that described stoving oven is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow inlet that is located at the stoving oven lower end, one end back blowing flow gas inlet therewith links to each other and blowback airline that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline are formed.
4. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1, the top that it is characterized in that described stoving oven is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet links to each other and the combustion-supporting airline of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this combustion-supporting airline of heating are formed.
5. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1, it is characterized in that described stoving oven is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by the clean-out system circulation tank, the feeding pump that is connected of clean-out system circulation tank therewith, this feeding pump is connected with stoving oven feed pipeline, there is a new water lines to be connected with stoving oven feed pipeline, there is a scavenging solution return line one end to be connected the end of stoving oven feed pipeline, the other end is connected with the clean-out system circulation tank, forms an online cleaning system of circulation.
6. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1, it is characterized in that described stoving oven is provided with Pneumatic feeding device, this Pneumatic feeding device is by the compressed air inlet pipe that is connected with described spent acid jar, the air filter that is located on this compressed air inlet pipe is formed, and described spent acid jar directly is connected with stoving oven feed pipeline.
7. according to the equipment of claim 5 or 6 described preparing cobaltosic oxide powder by spray roasting, it is characterized in that described clean-out system circulation tank directly is connected with described spent acid jar.
8. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 1, the furnace shell that it is characterized in that described stoving oven is the stainless steel furnace shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148733U CN201121136Y (en) | 2007-09-30 | 2007-09-30 | Equipment for roasting to produce cobaltic-cobaltous oxide powder with spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148733U CN201121136Y (en) | 2007-09-30 | 2007-09-30 | Equipment for roasting to produce cobaltic-cobaltous oxide powder with spray |
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| Publication Number | Publication Date |
|---|---|
| CN201121136Y true CN201121136Y (en) | 2008-09-24 |
Family
ID=40008360
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200148733U Expired - Lifetime CN201121136Y (en) | 2007-09-30 | 2007-09-30 | Equipment for roasting to produce cobaltic-cobaltous oxide powder with spray |
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| Country | Link |
|---|---|
| CN (1) | CN201121136Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164903B (en) * | 2007-09-30 | 2010-08-25 | 赫东波 | Device for preparing cobaltosic oxide powder by spray roasting |
-
2007
- 2007-09-30 CN CNU2007200148733U patent/CN201121136Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164903B (en) * | 2007-09-30 | 2010-08-25 | 赫东波 | Device for preparing cobaltosic oxide powder by spray roasting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080924 Effective date of abandoning: 20070930 |