CN111121470A - Copper smelting furnace slag slow cooling system and slow cooling method thereof - Google Patents
Copper smelting furnace slag slow cooling system and slow cooling method thereof Download PDFInfo
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- CN111121470A CN111121470A CN202010024214.8A CN202010024214A CN111121470A CN 111121470 A CN111121470 A CN 111121470A CN 202010024214 A CN202010024214 A CN 202010024214A CN 111121470 A CN111121470 A CN 111121470A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention belongs to the technical field of metallurgical slag treatment, and particularly discloses a copper smelting slag slow cooling system and a slow cooling method thereof. The slow cooling system comprises a slag slow cooling field, a gantry crane and a water spraying door machine, wherein the gantry crane and the water spraying door machine can move along the length direction of the slag slow cooling field; the water spraying door machine is provided with a water spraying beam and a spraying pump, and the circulating water cooling system supplies water to the spraying nozzles through the process water channel, the spraying pump, the spraying main pipe and the spraying branch pipe. The slow cooling system reduces the floor area of slow cooling of the slag through the combination of the gantry crane, the water spraying door machine and the circulating water cooling system, and the slow cooling efficiency of the slag is high, the effect is good, and the energy consumption is low. Meanwhile, the invention also provides a slow cooling method, and the slow cooling method improves the cooling effect and ensures that the cooled slag has low hardness by adopting the slow cooling system to perform high-strength intermittent spraying.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of metallurgical slag treatment, in particular to a copper smelting slag slow cooling system and a slow cooling method thereof.
[ background of the invention ]
A large amount of furnace slag can be generated in copper pyrometallurgy, the copper content of the copper slag is generally 2% -5%, if the furnace slag can not be reasonably used, not only can the environment be polluted, but also the waste of copper resources is caused, therefore, the furnace slag is recycled, and the method has great significance for saving resources and protecting the environment.
At present, the recovery of copper in copper smelting slag by adopting the processes of slow cooling, crushing, grinding and floating and dehydration is a trend. The copper smelting furnace slag slow cooling mode widely applied in actual production at present is fixed spraying, namely a slag holding vehicle is adopted to place a hot slag bag in a slow cooling area for slow cooling, a fixed spraying water pipe is arranged in the slow cooling area for spraying the slag after slow cooling, so that the slag holding vehicle performs ladle turning operation on the slag after cooling; part of the spray water flows back to the water collecting pool through the ground and the trench, and the reuse water is conveyed to each spray point again through a pipeline by a pump.
The slow cooling method has the following problems: (1) a slag ladle car channel needs to be arranged in the slow cooling field, and the required field area is large; (2) the water supply pipeline is complicated to lay, and in addition, the inside of the pipeline is easy to scale, the water quantity in the middle and rear sections of the pipeline is often insufficient, so that the cooling effect is poor, the hardness of the slag is high, the integral cooling time is long, the turnover rate of a slag ladle is low, and safety accidents are easy to cause; (3) the frequent bag receiving, bag placing and bag turning of the slag ladle car has high energy consumption and maintenance cost, and directly causes high production cost of slow cooling, crushing and ore grinding of slag.
In view of the above problems, some prior arts have proposed corresponding solutions. For example, the chinese patent application CN 104630396 a discloses an automatic control device for slow cooling of copper smelting slag, which controls a ladle car to move to an air cooling/water cooling device for corresponding cooling according to the temperature of the slag ladle, so that the automation degree is high, the labor cost can be reduced, and the operation safety of operators can be improved; on the basis of a copper smelting slag slow cooling automatic control device in Chinese invention patent application CN 104630396A, a copper smelting slag slow cooling automatic control device in Chinese utility model patent CN 208183045U, an infrared induction device is additionally arranged for cooling treatment, people do not need to contact, and personal safety of operators is further improved. Although the two technical schemes solve various problems of the fixed spraying slow cooling to a certain extent and effectively improve the automation degree of the slow cooling of the slag, for a copper metallurgy production enterprise, a large amount of slag is generated every day, the weight of a slag ladle reaches 75t, one slag ladle vehicle can only pull a plurality of slag ladles/one cooling tank can only load one slag ladle for cooling at one time, namely, the device of the Chinese patent application CN 104630396A and the Chinese utility model CN 208183045U is used for cooling, the slag ladle vehicle can only cool a plurality of slag ladles at one time, and the cooling process needs to pull the slag ladles back and forth to run for cooling/needs to load the slag ladles into the cooling tank and then transport the slag ladles into a conveying channel for cooling and then take out, because the slag ladles have large weight, huge energy consumption can be generated in the cooling and transporting process, and the device can not be applied to slow cooling of large-batch slag ladles, namely, the device can not be effectively industrialized. In addition, the prior art also discloses corresponding circulating water cooling system in order to be applied to the cooling of slag, for example chinese utility model patent application CN 203741355U a can carry out the quick refrigerated circulating water cooling system of slag and chinese utility model patent CN 207811778U slowly cool automated control device of copper smelting slag, though these two schemes all have good cooling water circulation effect, do not effectively carry out organic combination with whole cinder ladle slowly cool system, do not give how to adopt this circulating cooling system effectively to use to the technological scheme of cinder ladle slowly cooling promptly.
[ summary of the invention ]
In view of the above, there is a need for a slow cooling system for copper smelting slag and a slow cooling method thereof. The copper smelting furnace slag slow cooling system disclosed by the invention realizes efficient slow cooling operation of copper smelting furnace slag by effectively combining the movable gantry crane, the movable water spraying door machine and the circulating water cooling system, effectively reduces the floor area of slow cooling of the furnace slag, and has the advantages of high furnace slag slow cooling efficiency, good effect, low energy consumption and high industrialization degree. Meanwhile, the invention also provides a slow cooling method, and the slow cooling method improves the cooling effect of the slag by adopting the slow cooling system to carry out high-strength intermittent spray cooling on the slag ladle, and the cooled slag has low hardness and is easy for subsequent crushing and grinding.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a copper smelting slag slow cooling system comprises a slag slow cooling field, a gantry crane and a water spraying door machine, wherein gantry crane rails and water spraying door machine rails are arranged on the outer sides of two long side edges of the slag slow cooling field, the gantry crane rails are positioned on the outer sides of the water spraying door machine rails, a process water channel is arranged on the ground between the gantry crane rails and the water spraying door machine rails, the gantry crane rails, the process water channel and the water spraying door machine rails are all arranged along the length direction of the slag slow cooling field, the gantry crane is erected above the slag slow cooling field through the gantry crane rails and can move along the gantry crane rails, and the water spraying door machine is erected above the slag slow cooling field through the water spraying door machine rails and can move along the water spraying door machine rails; the slag slow cooling field is sequentially divided into a water circulation area, a slag slow cooling area and a slag crushing area from left to right along the length direction of the slag slow cooling field, the water circulation area is provided with a circulating water cooling system, the circulating water cooling system supplies water for the process water channel, and slag ladle placing coils are uniformly arranged on the slag slow cooling area;
the watering gantry crane include with watering gantry crane track sliding connection's support removes the seat, the support is removed and is equipped with the watering crossbeam on the seat, the watering crossbeam is followed the width direction in slag slow cooling field sets up, it sprays the pump to be equipped with on the removal seat to support, the entry linkage that sprays the pump has the inlet tube, the free end of inlet tube extends to under the surface of water of technology ditch, the exit linkage that sprays the pump is responsible for, it extends to spray the person in charge the watering crossbeam upper surface and along the length direction of watering crossbeam is laid, it is located to spray the person in charge the pipeline section vertical connection of watering crossbeam upper surface has the branch pipe that sprays, the end that sprays the branch pipe extends the upper surface of watering crossbeam is connected with spray header, spray header is located the cinder ladle is put directly over the coil.
Further, the circulating water cooling system comprises a process return water collecting tank, a hot water tank, a water cooling device, a cold water tank and an overflow tank which are sequentially connected, water on the slag slow cooling area flows back to the process return water collecting tank through a water collecting channel, the overflow tank is connected with the process water channel, and the cold water tank is further connected with a water adding pipe.
Furthermore, the width of the process canal is 0.5-0.8m, the depth of the process canal is 1.0-2.0m, and the length of the process canal is not less than the length of the slag slow cooling area, the opening cover of the process canal is provided with a protective cover plate, the protective cover plate is provided with a strip-shaped through hole capable of accommodating the water inlet pipe, the strip-shaped through hole is arranged along the length direction of the process canal, and the length of the strip-shaped through hole is not less than the length of the process canal.
Furthermore, the number of the sprinkling cross beams is at least one.
Furthermore, the height difference between the spray nozzle and the top of the slag ladle is 0.3-0.6m, and the spray nozzle is an atomizing nozzle.
The invention also provides a method for slowly cooling the copper smelting furnace slag by adopting the copper smelting furnace slag slow cooling system.
Further, the method for slowly cooling the copper smelting slag comprises the following steps:
(1) conveying hot slag ladles generated by the smelting furnace to the slag slow cooling area by using a slag ladle vehicle;
(2) operating the gantry crane to place the hot slag ladles on the slag ladle swinging and unwinding ring of the slag slow cooling area one by one, and starting to calculate slow cooling time of the slag ladles after the last hot slag ladle is placed, wherein the slow cooling time is 5-24 h;
(3) after the slow cooling time of the slag ladle is over, remotely controlling the water spraying door machine to move to a region where the slag ladle is placed and enabling the spraying nozzle to be positioned right above a first slag discharging ladle, starting the spraying pump to start spraying operation, after each slag ladle is sprayed for 10-20min, remotely controlling the water spraying door machine to move to the position where the spraying nozzle is positioned right above the next slag discharging ladle, starting the spraying operation, and repeating the steps in the same way, when the water spraying door machine moves to a last slag discharging ladle and finishes spraying, returning to the first slag discharging ladle to spray, and spraying and cooling time of each slag discharging ladle is 40-60 h;
(4) and after the slag ladle is subjected to spray cooling, operating the gantry crane to turn the slag ladle to the slag crushing area.
By adopting the technical scheme, the invention has the following beneficial effects:
1. according to the invention, through the effective combination of the movable gantry crane, the movable water spraying door machine and the circulating water cooling system, the efficient slow cooling operation of the copper smelting furnace slag is realized, the problems of large investment, long pipeline and poor slag slow cooling effect caused by poor spraying effect at the tail end of the pipeline of the fixed spraying slag slow cooling system are solved, a slag ladle car channel is not required to be arranged in the slag slow cooling field, 60% of field is saved compared with the traditional slow cooling mode, and the occupied area of slow cooling is effectively reduced. In addition, a large amount of slag ladles can be slowly cooled at one time, and the slow cooling efficiency of the slag ladles is high.
2. The invention discloses a method for recycling copper in slag, which comprises the steps of spraying slag, spraying water, cooling the slag, and carrying out continuous spraying on the slag, wherein the spraying water is sprayed in a high-water-quantity high-strength intermittent spraying mode. And the spray nozzle adopts the atomizing nozzle, so that the spray water covers the top surface of the whole slag ladle, the process of gradually cooling the slag from the surface to the inside of the slag is realized, and the risk of breaking down a solidified slag layer by the traditional water column type spray is avoided.
3. The slow cooling system has remarkable energy-saving effect. The invention adopts the movable water spraying door machine to spray, and has the advantages of less pressure loss of water pipelines, low power of required spraying pump and low energy consumption because of less water supply pipelines and spraying pipelines; meanwhile, the sum of the energy consumption of the gantry crane and the water spraying door machine is lower than the energy consumption of the ladle receiving, the ladle placing and the ladle turning of the tank-holding car, and is also obviously lower than the energy consumption of the slag ladle car for back-and-forth transportation cooling and the slag ladle transportation through the conveying channel.
4. The slow cooling system has good safety benefit. Because the slag ladle cooled by the slow cooling system and the slow cooling method has good cooling effect, the situation that the hot slag is mixed in the cold slag in the subsequent ladle turning process can not occur, thereby effectively avoiding the phenomenon that the hot slag explodes when meeting water and effectively improving the production safety.
5. The slow cooling system has the advantages of simple equipment, small occupied area and few pipelines, so the investment cost and the daily maintenance cost are low.
[ description of the drawings ]
FIG. 1 is a schematic view of a slow cooling system for copper smelting slag according to the present invention.
Fig. 2 is a schematic structural view of the sprinkler door machine of fig. 1.
Fig. 3 is a top view of fig. 1 with the gantry crane and the sprinkler door removed.
The main component symbols are described below.
In the figure: 1-a slag slow cooling field, 11-a water circulation area, 111-a process return water collecting pool, 112-a hot water pool, 113-a water cooling device, 114-a cold water pool, 115-an overflow pool, 12-a slag slow cooling area, 121-a slag ladle placing coil, 13-a slag crushing area, 2-a gantry crane, 3-a sprinkling gantry crane, 31-an underframe, 32-a support column, 33-a connecting beam, 34-a sprinkling cross beam, 35-a sprinkling pump, 36-a water inlet pipe, 37-a sprinkling main pipe, 38-a sprinkling branch pipe, 39-a sprinkling nozzle, 4-a sprinkling gantry crane rail, 5-a gantry crane rail, 6-a process water channel and 61-a protective cover plate.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
[ detailed description ] embodiments
Referring to fig. 1 and 3, in a preferred embodiment of the present invention, a copper smelting slag slow cooling system includes a slag slow cooling field 1, a gantry crane 2 and a water spraying gantry crane 3, wherein the gantry crane 2 is used for ladle adjustment and ladle turning of a slag ladle, the water spraying gantry crane 3 is used for moving to perform spray cooling operation on the slag ladle, the number of gantry cranes 2 and the number of water spraying gantry cranes 3 are flexibly adjusted according to the actual quantity of the slow-cooling slag ladle, that is, when the quantity of the slow-cooling slag ladle is large, a plurality of gantry cranes 2 and a plurality of water spraying gantry cranes 3 can be operated simultaneously to improve the slow cooling efficiency of the slag ladle. The outside of 1 both long sides of slag slow cooling field is equipped with portal crane track 5 and watering door machine track 4, portal crane track 5 is located watering door machine track 4's the outside, portal crane track 5 with watering door machine track 4 all follows the length direction setting of slag slow cooling field 1, portal crane 2 passes through portal crane track 5 erects in 1 top of slag slow cooling field can along portal crane track 5 removes to can control according to actual need portal crane 2 carries out falling the package of cinder ladle and turning over the package operation to suitable position, watering door machine 3 passes through watering door machine track 4 erects in 1 top of slag slow cooling field and can along watering door machine track 4 removes, thereby can be as required remote control watering door machine 3 removes the position that sprays to needs and sprays.
The gantry crane 2 of the present embodiment is customized according to the specification of the slag slow cooling field 1 and manufactured by taiyuan heavy industry limited company, and the structure thereof is substantially the same as that of the existing gantry crane, and the specific structure thereof will not be described in detail herein for saving the text.
The slag slow cooling field 1 is sequentially divided into a water circulation area 11, a slag slow cooling area 12 and a slag crushing area 13 from left to right along the length direction of the slag slow cooling field, the water circulation area 1 is provided with a circulating water cooling system, the circulating water cooling system is used for supplying water for the water spraying door machine 3 to perform slag ladle spraying cooling operation, the circulating water cooling system comprises a process return water collecting pool 111, a hot water pool 112, a water cooling device 113, a cold water pool 114 and an overflow pool 115 which are sequentially connected, and the slag slow cooling can evaporate a large amount of water, so that the cold water pool 114 is also connected with a water adding pipe (not marked in the drawing) for adding fresh water and plant area reuse water; the size of the slag slow cooling area 12 is confirmed according to the slag ladle volume of specific production, and its subaerial portrayal mark has the slag ladle to put coil 121, the slag ladle is put coil 121 and is followed the one row of width direction of slag slow cooling area 12 sets up, the slag ladle is put coil 121 and is used for fixing a position the slag ladle and place, one promptly the slag ladle is put coil 121 and is used for placing a slag ladle, thereby does benefit to 3 batch of watering door machines carry out the slag ladle and spray cooling operation, and then improve the slag ladle and spray cooling efficiency.
Continuing to refer to fig. 2, the water spraying door machine 3 comprises a supporting and moving seat, the supporting and moving seat comprises a bottom frame 31 connected with the water spraying door machine track 4 in a sliding manner and supporting columns 32 vertically connected with four corners of the bottom frame 31, the top ends of the two supporting columns 32 positioned on the same side are connected through a connecting beam 33, namely the connecting beam 33 is parallel to the length direction of the slag slow cooling field 1, a water spraying cross beam 34 is connected between two aligned ends of the two connecting beams 33, and the water spraying cross beam 34 is parallel to the width direction of the slag slow cooling field 1; a spray pump 35 is arranged on the bottom frame 31, and the spray pump 35 sprays 3-5m of each slag ladle in a single row3The type selection is carried out in the/h, the entry linkage that sprays pump 35 has inlet tube 36, the exit linkage that sprays pump 35 has two to spray to be responsible for 37 that are parallel to each other, two spray to be responsible for 37 and extend to spill crossbeam 34 upper surface and along the length direction of spill crossbeam 34 upper surface is laid, two it is responsible for 37 to spray to be located the equidistance perpendicular branch pipe 38 that is connected with in the both sides limit that the pipeline section of spill crossbeam 34 upper surface is relative, the end of branch pipe 38 extends spill crossbeam 34's upper surface and be connected with spray shower 39, spray and spoutThe heads 39 are atomizing nozzles, the number of the spraying nozzles 39 in each row is equal to that of the slag ladle placing coils 121 in each row, the spraying nozzles 39 are located right above the slag ladle placing coils 121, and the height difference between the spraying nozzles 39 and the tops of the slag ladles is 0.3-0.6m, namely, one spraying nozzle 39 corresponds to one slag ladle placing coil 121 (namely, corresponds to one slag ladle).
A process water channel 6 is arranged on the ground between the gantry crane track 5 and the water spraying door machine track 4 on one side, the width of the process water channel 6 is 0.5-0.8m, the depth is 1.0-2.0m, and the length is not less than the length of the slag slow cooling area 12, a protective cover plate 61 is arranged on an opening cover of the process water channel 6 to avoid the phenomenon that an operator carelessly falls into the process water channel due to the fact that the opening of the process water channel 6 is too wide, a long strip-shaped through hole (not marked in the figure) capable of just accommodating the water inlet pipe is arranged on the protective cover plate 61, namely the free end of the water inlet pipe 36 is inserted under the water surface of the process water channel 6 through the long strip-shaped through hole which is arranged along the length direction of the process water channel 6 and has the length at least equal to the length of the process water channel 6, when the water spraying door machine 3 moves, the water inlet pipe 36 can move along the strip-shaped through hole synchronously, so that the water inlet pipe 36 is always communicated with the process water channel 6, and the water requirement of the spraying main pipe 37 is further ensured.
When the slow cooling system works, the spray water overflowing from the top of the slag ladle flows back to the process return water collecting tank 111 through the water collecting channel on the slag slow cooling field 1, then flows to the hot water tank 112 from the process return water collecting tank 111, is cooled by the cooling device 113 and then is conveyed to the cold water tank 114, the water in the cold water tank 114 flows to the overflow tank 115, the water in the overflow tank 115 flows to the process water channel 6, the spray pump 35 pumps the water from the process water channel 6 to the spray main pipe 37 through the water inlet pipe 36, and the water is sprayed out from the spray nozzle 38, so that the spraying can be started. Form a complete water circulation closed circuit through above circulation, promoted the convenience of watering door machine 3 water and make full use of the water resource.
In another embodiment of the present invention, the number of the water spraying beams 34 may be one, three, four, etc., and the specific number may be determined according to actual production.
In another embodiment of the present invention, the outlet of one spraying pump 35 may be correspondingly connected to one spraying main pipe 37 or a plurality of spraying main pipes 37, that is, the number of the connected spraying main pipes 37 may be adjusted according to actual production needs; if the spray pump 35 is connected with a plurality of spray main pipes 37, namely, a valve is arranged between the spray pump 35 and the plurality of spray main pipes 37, and then the valve is rotated to be switched according to the water passing requirement.
The method for carrying out slag ladle slow cooling by adopting the slow cooling system comprises the following steps:
(1) the hot slag ladle generated by the smelting furnace is conveyed to the slag slow cooling area 12 by a slag ladle vehicle;
(2) operating the gantry crane 2 to arrange the hot slag ladles row by row and place the hot slag ladles on the slag ladle placing coil 121 of the slag slow cooling area 12, and starting to calculate the slow cooling time of the slag ladles after the last hot slag ladle is placed, wherein the whole slow cooling time is 5-24 h;
(3) after the slow cooling time of the slag ladle is over, remotely controlling the water spraying door machine 3 to move to an area where the slag ladle is placed and enabling the four rows of spraying nozzles 39 to be located right above the first four rows of slag ladles respectively, starting the spraying pump 35 to start spraying operation, remotely controlling the water spraying door machine 3 to move to the four rows of spraying nozzles 39 to be located right above the next four rows of slag ladles after each slag ladle is sprayed for 10-20min, starting the spraying operation, and repeating the steps, when the water spraying door machine 3 moves to the last four slag ladles and finishes spraying, returning to the first four rows of slag ladles for spraying, and spraying and cooling for 40-60h in each slag ladle; preferably, each sprinkling gate machine 3 is responsible for spraying 16 rows of slag ladles, namely, each row of slag ladles are sprayed again after the interval of 40-80min, and the hardness of slag obtained by cooling at the time interval is lowest;
(4) and after the slag ladle is sprayed and cooled, operating the gantry crane 2 to turn the slag ladle to the slag crushing area 13, and finishing slow cooling operation of the slag ladle.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (7)
1. A copper smelting slag slow cooling system is characterized in that: the device comprises a slag slow cooling field, a gantry crane and a water spraying door machine, wherein gantry crane rails and water spraying door machine rails are arranged on the outer sides of two long side edges of the slag slow cooling field, the gantry crane rails are positioned on the outer sides of the water spraying door machine rails, a process water channel is arranged on the ground between the gantry crane rails and the water spraying door machine rails, the gantry crane rails, the process water channel and the water spraying door machine rails are all arranged along the length direction of the slag slow cooling field, the gantry crane is erected above the slag slow cooling field through the gantry crane rails and can move along the gantry crane rails, and the water spraying door machine is erected above the slag slow cooling field through the water spraying door machine rails and can move along the water spraying door machine rails; the slag slow cooling field is sequentially divided into a water circulation area, a slag slow cooling area and a slag crushing area from left to right along the length direction of the slag slow cooling field, the water circulation area is provided with a circulating water cooling system, the circulating water cooling system supplies water for the process water channel, and slag ladle placing coils are uniformly arranged on the slag slow cooling area;
the watering gantry crane include with watering gantry crane track sliding connection's support removes the seat, the support is removed and is equipped with the watering crossbeam on the seat, the watering crossbeam is followed the width direction in slag slow cooling field sets up, it sprays the pump to be equipped with on the removal seat to support, the entry linkage that sprays the pump has the inlet tube, the free end of inlet tube extends to under the surface of water of technology ditch, the exit linkage that sprays the pump is responsible for, it extends to spray the person in charge the watering crossbeam upper surface and along the length direction of watering crossbeam is laid, it is located to spray the person in charge the pipeline section vertical connection of watering crossbeam upper surface has the branch pipe that sprays, the end that sprays the branch pipe extends the upper surface of watering crossbeam is connected with spray header, spray header is located the cinder ladle is put directly over the coil.
2. The copper smelting slag slow cooling system according to claim 1, characterized in that: the circulating water cooling system comprises a process return water collecting tank, a hot water tank, a water cooling device, a cold water tank and an overflow tank which are sequentially connected, water on the slag slow cooling area flows back to the process return water collecting tank through a water collecting channel, the overflow tank is connected with a process water channel, and the cold water tank is further connected with a water feeding pipe.
3. The copper smelting slag slow cooling system according to claim 1, characterized in that: the width of the process water channel is 0.5-0.8m, the depth of the process water channel is 1.0-2.0m, and the length of the process water channel is not less than the length of the slag slow cooling area, the opening cover of the process water channel is provided with a protective cover plate, the protective cover plate is provided with a strip-shaped through hole capable of containing the water inlet pipe, the strip-shaped through hole is arranged along the length direction of the process water channel, and the length of the strip-shaped through hole is not less than the length of the process water channel.
4. The copper smelting slag slow cooling system according to claim 1, characterized in that: the number of the water spraying cross beams is at least one.
5. The copper smelting slag slow cooling system according to claim 1, characterized in that: the height difference between the spray nozzle and the top of the slag ladle is 0.3-0.6m, and the spray nozzle is an atomization nozzle.
6. A method of conducting slow cooling of copper smelting slag using the slow cooling system for copper smelting slag according to any one of claims 1 to 5.
7. The method for slow cooling of copper smelting slag according to claim 6, comprising the steps of:
(1) conveying hot slag ladles generated by the smelting furnace to the slag slow cooling area by using a slag ladle vehicle;
(2) operating the gantry crane to place the hot slag ladles on the slag ladle swinging and unwinding ring of the slag slow cooling area one by one, and starting to calculate slow cooling time of the slag ladles after the last hot slag ladle is placed, wherein the slow cooling time is 5-24 h;
(3) after the slow cooling time of the slag ladle is over, remotely controlling the water spraying door machine to move to a region where the slag ladle is placed and enabling the spraying nozzle to be positioned right above a first slag discharging ladle, starting the spraying pump to start spraying operation, after each slag ladle is sprayed for 10-20min, remotely controlling the water spraying door machine to move to the position where the spraying nozzle is positioned right above the next slag discharging ladle, starting the spraying operation, and repeating the steps in the same way, when the water spraying door machine moves to a last slag discharging ladle and finishes spraying, returning to the first slag discharging ladle to spray, and spraying and cooling time of each slag discharging ladle is 40-60 h;
(4) and after the slag ladle is subjected to spray cooling, operating the gantry crane to turn the slag ladle to the slag crushing area.
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| CN202010024214.8A CN111121470A (en) | 2020-01-10 | 2020-01-10 | Copper smelting furnace slag slow cooling system and slow cooling method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627282A (en) * | 2020-12-10 | 2021-04-09 | 广西金川有色金属有限公司 | Water supply equipment for slow cooling water of metallurgical slag and use method thereof |
| CN113269657A (en) * | 2021-05-25 | 2021-08-17 | 云南锡业股份有限公司铜业分公司 | Automatic slag ladle management method for slag ladle slow cooling field |
| CN114350974A (en) * | 2021-12-17 | 2022-04-15 | 广西金川有色金属有限公司 | Smelting slag slow cooling process |
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2020
- 2020-01-10 CN CN202010024214.8A patent/CN111121470A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627282A (en) * | 2020-12-10 | 2021-04-09 | 广西金川有色金属有限公司 | Water supply equipment for slow cooling water of metallurgical slag and use method thereof |
| CN113269657A (en) * | 2021-05-25 | 2021-08-17 | 云南锡业股份有限公司铜业分公司 | Automatic slag ladle management method for slag ladle slow cooling field |
| CN114350974A (en) * | 2021-12-17 | 2022-04-15 | 广西金川有色金属有限公司 | Smelting slag slow cooling process |
| CN114350974B (en) * | 2021-12-17 | 2023-08-15 | 广西金川有色金属有限公司 | Smelting slag slow cooling process |
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