CN208087704U - A kind of blister copper pyrogenic process continuous refining device - Google Patents
A kind of blister copper pyrogenic process continuous refining device Download PDFInfo
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- CN208087704U CN208087704U CN201820484120.7U CN201820484120U CN208087704U CN 208087704 U CN208087704 U CN 208087704U CN 201820484120 U CN201820484120 U CN 201820484120U CN 208087704 U CN208087704 U CN 208087704U
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Abstract
The utility model provides a kind of blister copper pyrogenic process continuous refining device, including：The floss hole of furnace body and the top for being set to the furnace body, wherein with charging zoneofoxidation, reducing zone and the casting area separated by partition wall but bottom is interconnected in the furnace body, the reducing zone is between the charging zoneofoxidation and the casting area.The blister copper pyrogenic process continuous refining device of the utility model has many advantages, such as that low energy consumption, environmental-friendly, automatization level is high, production efficiency is high, blister copper continuous feed, anode copper direct casting can be achieved, oxidation, reduction process are carried out at the same time when operation, the activity duration can be shortened, improve utilization rate of equipment and installations, exhaust gas volumn and smoke components are stablized simultaneously, can focus on simultaneously recovery waste heat.
Description
Technical field
The utility model is related to non-ferrous metallurgy technology field, more particularly to a kind of blister copper pyrogenic process continuous refining device.
Background technology
The fire metallurgy process of copper generally comprises three copper concentrate melting, Copper Matte Converting and blister refining steps.Copper matte regulus is blown
Refine output the general cupric 98.5~99.5% of blister copper, remaining impurity element have sulphur, oxygen, iron, arsenic, antimony, zinc, tin, lead, bismuth, nickel,
Cobalt etc. usually also contains dissipated metals and the noble metals such as selenium, tellurium, gold and silver.Impurity element can be to the electric conductivity and mechanicalness of copper
Harmful effect can be generated, and the valuable elements such as dissipated metal and noble metal then need synthetical recovery, improve resource utilization.Blister copper
On the one hand the purpose of pyro-refining is to remove impurity element as much as possible, to reduce influence of the impurity element to electrorefining；Separately
On the one hand plate face flat smooth, the thickness of casting out are uniform, non-trimming burr, the good anode plate of suspention verticality, to meet electricity
Solve the technological requirement of refining.
Blister copper pyro-refining includes mainly aoxidizing and restoring two processes.Oxidation stage is that at high temperature, oxidant is sent
Enter in molten raw, the Cu in melt is oxidized to Cu first2O, Cu2O makes its oxidation with the effect of other metallic impurity elements again, raw
At metal oxide in copper water solubility very little, and proportion is lighter, can rapid emersion liquid level form clinker and be discharged.Oxygen
It, can be with Cu in solidification containing 0.5~1.5% oxygen in copper liquid after the completion of change2O forms are precipitated, and are distributed on the crystal boundary of Cu,
It causes damages to electrorefining, reduction deoxidation need to be carried out.Reduction phase is that at high temperature, reducing agent is sent into copper liquid, reduction
Agent and the Cu in melt2O react deoxidation, when in copper liquid it is oxygen-containing be down to 0.1~0.2% after, you can cast.
At home and abroad generally reverberatory furnace, rotary refining furnace and tilting furnace is used to carry out blister copper pyro-refining at present.Wherein,
Reverberatory furnace the degree of automation is low, artificial intubation redox labor intensity is big, smoke spillage leads to that operating environment is poor, energy consumption more
Height, production efficiency are low；Rotary refining furnace has higher automatization level, and processing capacity is big, and production efficiency is higher, but due to
Its molten bath is deep, and heating surface area is small, and material is slow, and is unsuitable for handling cold burden, and converter control system is complicated；Tilting furnace combines instead
The characteristics of penetrating stove and rotary refining furnace, but furnace body shape is special, complicated, investment is high, and also furnace body verts when operation,
There is larger impact to the stability of furnace roof, furnace wall.What is more important, these three widely applied blister copper fire refining process
Have the shortcomings that common, is exactly periodic job, refining process is divided into the charge melted phase, oxidation is skimmed phase, reduction period and casting
Four periods of phase.When using periodic job, heat of oxidation flue gas contains SO2Concentration height needs individually processing, reduction period flue gas to contain CO
Concentration height needs second-time burning, and the exhaust gas volumn fluctuation in four periods is big, can not focus on, and follow-up smoke processing system is complicated,
And the heat that flue gas is taken away can not recycle.Meanwhile periodic job causes every stove activity duration long, fuel consumption is big, casting
Appliance arrangement utilization rate is low, influences production efficiency.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model be to provide a kind of achievable blister copper continuous feed,
Anode copper direct casting simultaneously can be by the blister copper pyrogenic process continuous refining device of fume centralized processing.
To achieve the above object, the utility model adopts the following technical scheme that：
A kind of blister copper pyrogenic process continuous refining device, including：The floss hole of furnace body and the top for being set to the furnace body, wherein
With charging zoneofoxidation, reducing zone and the casting area separated by partition wall but bottom is interconnected, the reducing zone in the furnace body
Between the charging zoneofoxidation and the casting area.
In an embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the partition wall is arranged described
Between the zoneofoxidation that feeds and the reducing zone and between the reducing zone and the casting area.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the partition wall and the stove
There is gap, so that copper liquid flows through between the bottom of body.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the partition wall and the stove
There is gap, so that the flue gas generated in refining process passes through between the top of body.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the charging zoneofoxidation
Side wall and/or roof are equipped with cold burden and mouth and hot material addition mouth are added.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the charging zoneofoxidation
Side wall is equipped with slag-drip opening, and the side wall of the reducing zone and the casting area is equipped with sampling observation panel.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the charging zoneofoxidation and
The side wall of the reducing zone is equipped with multiple spray guns, to spray into oxidant or reducing agent into copper liquid.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the charging zoneofoxidation and
The side wall of the casting area is equipped with burner.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the floss hole setting exists
The charging zoneofoxidation or the casting area.
In the another embodiment of the blister copper pyrogenic process continuous refining device of the utility model, the bottom of the furnace body is set
There are multiple gases to blast device.
The blister copper pyrogenic process continuous refining device of the utility model is with low energy consumption, environmental-friendly, automatization level is high, production
The advantages that efficient, oxidation, reduction process were carried out at the same time when operation, can, it can be achieved that blister copper continuous feed, anode copper direct casting
Shorten the activity duration, improves utilization rate of equipment and installations, while exhaust gas volumn and smoke components are stablized, simultaneously recovery waste heat can be focused on.
Description of the drawings
Fig. 1 is the structural schematic diagram of the blister copper pyrogenic process continuous refining device of one embodiment of the utility model；
Fig. 2 is the flow chart that continuous refining is carried out using the blister copper pyrogenic process continuous refining device of the utility model.
Wherein, the reference numerals are as follows：
1：Furnace body
101：Feed zoneofoxidation
102：Reducing zone
103：Casting area
2：Partition wall
3：Mouth is added in cold burden
4：Mouth is added in hot material
5：Slag-drip opening
6：Floss hole
7：Put copper mouth
8：First spray gun
9：Second spray gun
11：Gas blasts device
12：Burner
13：Sample observation panel
Specific implementation mode
The technical solution of the utility model is described further below according to specific embodiment.The protection of the utility model
Range is not limited to following embodiment, and it is new without limiting this practicality in any way merely for exemplary purpose to enumerate these examples
Type.
Fig. 1 is the structural schematic diagram of the blister copper pyrogenic process continuous refining device of one embodiment of the utility model, such as Fig. 1 institutes
Show, blister copper pyrogenic process continuous refining device includes furnace body 1 and the floss hole 6 for being set to 1 top of furnace body, is had by partition wall in furnace body 1
Separate but charging zoneofoxidation 101, reducing zone 102 and casting area 103 that bottom is interconnected, be carried out at the same time charge melted, oxidation,
Reduction and casting process, four periods are carried out at the same time in same stove, and wherein reducing zone 102 is located at charging zoneofoxidation 101
Between casting area 103, so that copper liquid is sequentially by charging zoneofoxidation 101, reducing zone 102 and casting area 103 in operation process.
Furnace body 1 is formed by refractory material laying, and furnace cavity will charging zoneofoxidation 101, reducing zone 102 by partition wall 2
Be separated from each other with casting area 103 but bottom be interconnected, i.e., partition wall 2 setting charging zoneofoxidation 101 and reducing zone 102 between,
And between reducing zone 102 and casting area 103.
Partition wall 2 is fixed on the both sides side wall of furnace body 1, is not contacted with the bottom wall of furnace body 1 and roof, i.e., partition wall 2 with
There is gap, the gap there can be certain altitude, it is sufficient to so that copper liquid is flowed through, therefore blister copper between the bottom of furnace body 1
Hot material can be continuously added in stove, so that refinery practice is carried out continuously, it can be achieved that blister copper continuous feed, anode copper direct casting, contracting
Short total activity duration improves utilization rate of equipment and installations and production efficiency, and is objectively ensureing continuous converting technique nonfertilization refining behaviour
The influence of work.
Also there is gap, the gap upper furnace can be made to form a unified gas between partition wall 2 and the top of furnace body 1
Space the flue gas generated in (i.e. charge melted, oxidation, reduction and casting) so that refining process by by the top of furnace body 1
Furnace cavity collects, and finally makes flue gas caused by charging zoneofoxidation 101, reducing zone 102 and casting area 103 by same
Floss hole 6 is discharged, the flue gas merging treatment that charge melted, oxidation, reduction and four periods of casting generate, the flue gas of formation at
Point, exhaust gas volumn and flue-gas temperature it is all more stable, subsequent smoke processing system is simple, and can be with recovery waste heat.
The height of partition wall 2 need to should be higher than that the highest of theoretically copper liquid when different scales depending on the liquid level of copper liquid
Liquid level simultaneously retains certain safe altitude, to which the copper liquid in will feed zoneofoxidation 101, reducing zone 102 and casting area 103 is upper
Layer is separated, and copper liquid can only flow through three regions by the gap between partition wall 2 and the bottom of furnace body 1, feed simultaneously
The clinker generated in zoneofoxidation 101 is then stopped by emersion liquid level by partition wall 2.
The side wall and/or roof for the zoneofoxidation 101 that feeds, which are equipped with cold burden mouth 3 and hot material are added, is added mouth 4, can by its to
The copper (hot material) of melting or the solid material (cold burden) of cupric are added in the zoneofoxidation 101 that feeds, while mouth 3 is added for cold burden and hot material adds
Entrance 4 is alternatively arranged as flux and mouth is added, and flux is added to adjust slag type if necessary into charging zoneofoxidation 101 by it.It examines
Consider the particularity of hot material, hot material is added mouth 4 and is generally disposed on the roof of charging zoneofoxidation 101, and the position of mouth 3 is added in cold burden
It sets then without particular/special requirement, you can be set on the roof of charging zoneofoxidation 101, may also set up in the side wall of charging zoneofoxidation 101
On.
Slag-drip opening 5 is additionally provided on the side wall for the zoneofoxidation 101 that feeds, slag-drip opening 5 is generally proximal to the setting of partition wall 2, can be by emersion
The clinker of liquid level is discharged, while slag-drip opening 5 also can be used as sampling observation panel, so that operator observes charging zoneofoxidation 101 at any time
The state of middle copper liquid can monitor oxygen content or sampling observation on-line.
Mouth 3 is added in cold burden and slag-drip opening 5 is equipped with fire door, to ensure the seal of furnace body 1, prevents have flue gas to escape.
Floss hole 6 is set to the top of furnace body 1, is generally arranged at the area close to charging zoneofoxidation 101 or casting area 103
Domain, the flue gas that such reducing zone 102 generates are discharged outward again by charging zoneofoxidation 101 or casting area 103, in reduction process not
The gas of completely burned burns in charging zoneofoxidation 101 or casting area 103, to effective while simplifying fume treatment
Fuel is saved, production cost is reduced.
Also sampling observation panel 13 is respectively equipped on the side wall of reducing zone 102 and casting area 103, so that operator observes at any time
The state of copper liquid, can monitor oxygen content on-line in reducing zone 102 and casting area 103.
The side wall for the zoneofoxidation 101 that feeds is equipped with multiple first spray guns 8, and the side wall of reducing zone 102 is equipped with multiple second
Spray gun 9.
First spray gun 8 is oxidant lance, oxidant can be sprayed into charging zoneofoxidation 101, as compressed air or oxygen are dense
Degree is the oxygen-enriched air etc. of 22-80 percents by volume (vol%), controls oxidation depth by the addition of oxidant, that is, controls
Copper liquid oxygen content processed.
Second spray gun 9 is reducing agent spray gun, can spray into reducing agent, such as natural air-liquid to reducing zone 102 and casting area 103
Liquefied oil gas, ammonia, propane, fine coal, heavy oil etc. control reduction depth by the addition of reducing agent, that is, it is oxygen-containing to control copper liquid
Amount.
Oxidizing and Reducing Agents is sprayed into melt by spray gun, melt agitation is abundant, and zoneofoxidation and reducing zone are controlled respectively
Oxidative atmosphere and reducing atmosphere, mass-and heat-transfer condition is good, and the utilization rate of Oxidizing and Reducing Agents is high, at the same technique and its
Plant automation is horizontal high, can automatically control oxidant, reducing agent sprays into situation.
The angle of first spray gun 8 and the second spray gun 9 and horizontal plane is -90 ° -0-90 °, for example, 60 °, and is not existed usually
It is installed close to the position of partition wall 2, to ensure that Melt Stability flows.As shown in Figure 1, charging zoneofoxidation 101 and reducing zone 102 two
Surface side wall is respectively equipped with six the first spray guns 8 and five the second spray guns 9.
The side wall of the zoneofoxidation 101 that feeds and casting area 103 is equipped with burner 12, and can burn natural gas, heavy oil, bavin
The concurrent heating into stove of the fuel such as oil, fine coal promotes the fusing of cold burden in charging zoneofoxidation 101 and keeps casting area to adjust temperature
103 temperature.Flue gas caused by burner 12 can be also discharged by floss hole 6.Burner 12 is generally arranged at charging oxidation
On the headwall of area 101 and casting area 103, rationally to utilize space.
Have below the headwall of casting area 103 and put copper mouth 7, the anode copper liquid in casting area 103 is continuously emitted into and is poured
Casting device is cast into anode plate power transmission solution.Anode copper continuously discharges, and can improve pouring device utilization rate of equipment and installations, improves production
Efficiency.
The bottom of furnace body blasts device 11 equipped with multiple gases, and the gas such as nitrogen that will not be reacted with copper can be blasted into copper liquid
Gas or inert gas improve mass-and heat-transfer condition, strengthening smelting response intensity to stirring melt.
Fig. 2 is the flow chart that continuous refining is carried out using the blister copper pyrogenic process continuous refining device of the utility model, such as Fig. 2
Shown, blister copper pyrogenic process continuous refining process includes the following steps：
Blister copper is added in charging zoneofoxidation by step S101, and melting obtains copper liquid.
Step S102, oxidizing gas is passed through into copper liquid, and impurity element oxidation in copper liquid is made to generate refinement oxide slag.
Refinement oxide slag is discharged in step S103, and the copper liquid after oxidation is made to flow into reducing zone.
Step S104, is added reducing agent in reducing zone, and the copper liquid after oxidation is made to carry out reduction reaction.
Step S105 makes the copper liquid after reduction flow into casting area.
In step S101, molten raw is added mouth 4 by hot material and is continuously added to charging zoneofoxidation 101, and cold burden passes through
Cold burden is added mouth 3 and is added to charging zoneofoxidation 101, and heat makes cold burden caused by the high temperature or burner 12 using hot material itself
Fusing, final all blister coppers melt to obtain copper liquid.Cold burden can be added while handling blister copper hot material in the technique, to raw material
It is adaptable.
It, can be continuous since charging zoneofoxidation 101, reducing zone 102 and casting area 103 are interconnected and in same furnace body 1
Ground carries out charge melted, oxidation, reduction and casting process, therefore can realize blister copper continuous refining, anode copper direct casting, shortens
Total activity duration improves utilization rate of equipment and installations and production efficiency.
The temperature for the zoneofoxidation 101 that feeds is controlled at 1150~1250 DEG C, and temperature is improved according to actual conditions when changing cold burden, if
The burner 12 of headwall can burn the fuel such as natural gas, heavy oil into stove concurrent heating to adjust temperature.
In step s 102, oxidizing gas can be passed through into copper liquid by the first spray gun 8 of the zoneofoxidation 101 that feeds.
The oxygen-enriched air that oxidizing gas used can be compressed air or oxygen concentration is 22-80vol%.Cu is first by oxygen
Change forms Cu2O, Cu2O generates the refinement oxide slag that can be detached with copper liquid with impurity element (such as other metallic elements) reaction again,
Or impurity element is oxidized to be combined to form refinement oxide slag with flux again after metal oxide.
In step s 103, refinement oxide slag is discharged by 5 continuous or periodic interruption of slag-drip opening, the copper liquid after aoxidizing later
It is flowed into reducing zone 102 by the underclearance of the division wall 2 of feed zoneofoxidation 101 and reducing zone 102.
Copper liquid after oxidation flows into before reducing zone 102, and the oxygen content after control oxidation in copper liquid is 0.5~
1.5wt%, such as 0.8wt%.Oxidation depth can be controlled by compressed air or the amount of blasting of oxygen-enriched air, that is, control copper liquid and contain
Oxygen amount, at slag-drip opening 5 can on-line checking oxygen content, or sampling observation.
In step S104, reducing agent is added into copper liquid by the second spray gun 9 of reducing zone 102, makes the copper after oxidation
Liquid carries out reduction reaction.
Reducing agent used is one or more, the copper liquid in natural gas, liquefied petroleum gas, ammonia, propane, fine coal, heavy oil
The Cu of middle saturation2O is reacted with reducing agent generates Cu.
In step S105, underclearance that the copper liquid after reduction passes through reducing zone 102 and the division wall 2 of casting area 103
It flows into casting area 103, after anode copper liquid reaches casting requirement, copper mouth 7 is put by its continuous row by 103 bottom of casting area
It puts to subsequent pouring device, is cast into anode plate power transmission solution.The technique Anodic copper continuously discharges, and can improve pouring device
Utilization rate of equipment and installations improves production efficiency.
Copper liquid after reduction flows into before casting area 103, and the oxygen content in copper liquid after control reduction is 0.1-
0.2wt%, such as 0.12wt%.Reduction depth can be controlled by the addition of reducing agent, that is, control copper liquid oxygen content, sampling
13 on-line checking oxygen content of peep hole, or sampling observation.
Burner 12 on 103 headwall of casting area can keep casting area 103 by burning the fuel such as natural gas, heavy oil
The temperature of interior copper liquid is at 1150 DEG C~1250 DEG C, to be smoothed out subsequent casting operation.
After the flue gas that charging zoneofoxidation 101, the reducing zone 102 and casting area 103 generate collects in upper furnace space
It is discharged by same floss hole 6, due to the operation simultaneously of three regions, flue gas collects rear smoke components, exhaust gas volumn and flue-gas temperature
All more stable, the CO for generation of burning in 102 flue gas of reducing zone can be oxygen-containing by the flue gas of charging zoneofoxidation 101 and casting area 103
Aftercombustion is carried out, eliminates and is blended into second-time burning wind process and its device, while flue gas can be sent into residual heat using device and return
Receive waste heat.
In addition, also further device 11 can be blasted to charging zoneofoxidation 101, the reducing zone by being located at the gas of furnace bottom
102 and casting area 103 in copper liquid in blast suitable nitrogen or inert gas, so that melt is sufficiently stirred, improve mass-and heat-transfer
Condition, strengthening smelting response intensity improve oxidant, reducing agent utilization rate and production efficiency.
In conclusion the blister copper pyrogenic process continuous refining device of the utility model can realize that blister copper continuous feed, anode copper connect
Continuous casting, oxidation, reduction process are carried out at the same time when operation, can shorten the activity duration, improve utilization rate of equipment and installations, at the same exhaust gas volumn and
Smoke components are stablized, and simultaneously recovery waste heat can be focused on.To sum up, the blister copper pyrogenic process continuous refining device tool of the utility model
Have the advantages that low energy consumption, environmental-friendly, automatization level is high, production efficiency is high.
Those skilled in the art should be noted that embodiment described in the utility model is only exemplary,
Various other replacements, changes and improvements can be made in the scope of the utility model.Thus, the utility model is not limited to above-mentioned reality
Mode is applied, and is only defined by the claims.
Claims (10)
1. a kind of blister copper pyrogenic process continuous refining device, which is characterized in that including：The cigarette of furnace body and the top for being set to the furnace body
Road junction, wherein with charging zoneofoxidation, reducing zone and the casting area separated by partition wall but bottom is interconnected, institute in the furnace body
Reducing zone is stated between the charging zoneofoxidation and the casting area.
2. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the partition wall setting adds described
Expect between zoneofoxidation and the reducing zone and between the reducing zone and the casting area.
3. blister copper pyrogenic process continuous refining device according to claim 2, which is characterized in that the partition wall and the furnace body
There is gap, so that copper liquid flows through between bottom.
4. blister copper pyrogenic process continuous refining device according to claim 2, which is characterized in that the partition wall and the furnace body
There is gap, so that the flue gas generated in refining process passes through between top.
5. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the side wall of the charging zoneofoxidation
And/or roof is equipped with cold burden and mouth and hot material addition mouth is added.
6. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the side wall of the charging zoneofoxidation
Equipped with slag-drip opening, the side wall of the reducing zone and the casting area is equipped with sampling observation panel.
7. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the charging zoneofoxidation and described
The side wall of reducing zone is equipped with multiple spray guns, to spray into oxidant or reducing agent into copper liquid.
8. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the charging zoneofoxidation and described
The side wall of casting area is equipped with burner.
9. blister copper pyrogenic process continuous refining device according to claim 1, which is characterized in that the floss hole is arranged described
The zoneofoxidation that feeds or the casting area.
10. blister copper pyrogenic process continuous refining device according to any one of claim 1 to 9, which is characterized in that the furnace body
Bottom blast device equipped with multiple gases.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559855A (en) * | 2018-04-08 | 2018-09-21 | 中国恩菲工程技术有限公司 | A kind of blister copper pyrogenic process continuous refining device |
| CN114350975A (en) * | 2022-01-06 | 2022-04-15 | 高诺(衡阳)新材料有限责任公司 | Reverberatory furnace fire refining method for high-arsenic and high-antimony crude copper |
-
2018
- 2018-04-08 CN CN201820484120.7U patent/CN208087704U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559855A (en) * | 2018-04-08 | 2018-09-21 | 中国恩菲工程技术有限公司 | A kind of blister copper pyrogenic process continuous refining device |
| CN114350975A (en) * | 2022-01-06 | 2022-04-15 | 高诺(衡阳)新材料有限责任公司 | Reverberatory furnace fire refining method for high-arsenic and high-antimony crude copper |
| CN114350975B (en) * | 2022-01-06 | 2022-09-02 | 高诺(衡阳)新材料有限责任公司 | Reverberatory furnace fire refining method for high-arsenic and high-antimony crude copper |
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