CN112941255A - Water bath cooling treatment device and method for casting residues - Google Patents
Water bath cooling treatment device and method for casting residues Download PDFInfo
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- CN112941255A CN112941255A CN202110360621.0A CN202110360621A CN112941255A CN 112941255 A CN112941255 A CN 112941255A CN 202110360621 A CN202110360621 A CN 202110360621A CN 112941255 A CN112941255 A CN 112941255A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 238000001816 cooling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005266 casting Methods 0.000 title claims description 97
- 239000013049 sediment Substances 0.000 claims abstract description 9
- 238000010298 pulverizing process Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 110
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 13
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 241001125877 Gobio gobio Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009847 ladle furnace Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/07—Receptacle features where the slag is treated open to atmosphere
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The utility model provides a cast dross water bath cooling treatment device and method, includes the portion of feeding and the water bath part, the portion of feeding is used for cast dross to overturn and feeds, the water bath part is used for cast dross water bath pulverization breakage, the water bath part includes lift (7), water bath (8), lifting ruler (9), lifting wheel (10), airtight cover (11), rotatory lid (12), hoist engine (13), blast pipe (14), chimney (15), feed pipe (16), feed valve (17), fritter sediment (18), and cold dross jar (3) are placed on lift (7), and lift (7) are in water bath (8), and lifting ruler (9) are connected with lifting wheel (10) on lift (7) upper portion, and it can keep in contact with the water in water bath (8) to make cast dross through lift (7).
Description
Technical Field
The invention relates to the field of waste treatment and utilization, in particular to a casting residue water bath cooling treatment device and method generated in the production process of iron and steel enterprises.
Background
China is a large country for producing steel, and in recent years, the steel yield of China exceeds 9 hundred million tons and accounts for more than half of the whole world, wherein the annual production of steel slag is more than 1 hundred million tons. The casting residue is steel slag produced in the external refining treatment process, and the annual production of the casting residue in China is over 1000 ten thousand tons. The casting residue usually contains more than 30 percent of metallic iron, has important iron resource recovery value, and in addition, the content of calcium oxide is usually more than 50 percent, and can be directly returned to the smelting process for recycling.
The casting residue is steel slag generated in the external refining process, and after one external refining treatment is finished, the steel slag of refining equipment such as a ladle furnace and the like is poured into a slag tank. The external refining belongs to the deep processing procedure of molten steel, the amount of steel slag generated in the treatment process is far less than that of converter steel slag, and the amount of the slag is only about 2 percent of the amount of the molten steel. Therefore, the primary slag discharging amount of the casting residue is small, usually about 2-3 tons, the primary slag discharging amount is small, and the casting residue is usually required to be discharged for multiple times until a slag tank is filled with the casting residue and then is transported to a casting residue treatment site in a unified manner. Therefore, the casting residue tank transported to the steel slag treatment site usually passes through the slag receiving process for 7-10 times, and the time of more than 5 hours from the first slag discharge to the casting residue treatment site usually passes. The casting residue has high iron content and long residue receiving process, large-block residues are bonded up and down after each residue discharge, the pouring difficulty occurs when the casting residue is transported to a casting residue treatment site, and the pouring treatment of the large-block residues is more difficult.
Because the proportion that the big piece of the sediment of casting dregs sticks together is high, the processing of the sediment of existing casting often adopts the hot splashing method to handle, and the sediment of casting is transported to hot splashing field promptly and is beaten water cooling treatment, and the big piece sediment sticks together and is beaten water cooling and the artifical broken sediment of machinery tentatively realize the separation of sediment iron, and the big piece sediment that can't separate sticks together and transports to the weight workshop again and strikes the breakage. In order to reduce the proportion of large blocks of casting residue, domestic enterprises adopt a grid method to carry out casting residue treatment, namely, a grid-shaped concrete grid plate is added into a residue tank, poured casting residue is separated into nine blocks under a thermal condition, the residue tank is conveyed to a hot splashing field after being filled with the casting residue, the residues are smashed into blocks by using a machine, and then hot splashing or hot stuffiness treatment is carried out. However, the cost of the grid method is high, the cost of the grid for processing each ton of steel slag exceeds 50 yuan, and the processing cost is too high.
The casting residue is treated by the existing processes such as a hot splashing method and the like, and the field environment is very severe. In order to improve the environment problem of casting residue treatment by labor, part of enterprises adopt a water pumping process with a tank for cooling, but the treatment period of casting residue in one tank is usually as high as about 15 hours. Therefore, the casting residue needs to be developed into a simple and easy casting residue high-efficiency low-cost clean treatment process, so that the casting residue treatment efficiency is improved, the treatment cost is reduced, and the treatment environment is improved.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a solid steel slag quenching treatment device and a solid steel slag quenching treatment method.
The technical scheme of the invention is as follows:
the invention provides a casting residue water bath cooling treatment device which comprises a charging part and a water bath part, wherein the charging part is used for tipping and charging casting residues, the water bath part is used for water bath pulverization and crushing of the casting residues, the water bath part comprises a lifter, a water bath, a lifting ruler, lifting wheels, a closed cover, a rotary cover, a winch, an exhaust pipe, a chimney, a water supply pipe, a water supply valve and small residues, a cold residue tank is placed on the lifter, the lifter is arranged in the water bath, the lifting ruler is connected with the lifting wheels at the upper part of the lifter, and the casting residues can be kept in contact with water in the water bath through the lifter.
Furthermore, the closed cover is fixedly arranged above the water bath, the rotary cover is rotatably arranged at the top of the closed cover in a covering mode, the winch is connected with the closed cover and the rotary cover, the closed cover is connected with the chimney through the exhaust pipe, and the water supply valve and the water supply pipe are arranged on the upper portion of the side wall of the water bath.
Furthermore, the charging part comprises a hot slag tank, a tipping machine, a cold slag tank, casting slag, a slag raking machine and an air hole, wherein the hot slag tank is arranged above the tipping machine, when the casting slag is discharged, the cold slag tank is arranged below the slag dumping of the tipping machine, and the slag raking machine is arranged on one side of the tipping machine.
Furthermore, the cold slag tank is of a cylindrical cast steel structure, the thickness of the tank wall is not less than 100mm, the air holes are distributed in the bottom and the peripheral tank wall of the cold slag tank, the diameters of the air holes are different from 3 mm to 50mm, and the shortest distance between every two adjacent air holes is not less than 50 mm.
Further, the hot slag tank is of a cylindrical cast steel structure, the thickness of the tank wall is not less than 100mm, the maximum slag loading of the hot slag tank is not less than 5t, and the maximum slag loading of the cold slag tank is 1.5-5 times that of the hot slag tank.
Furthermore, the closed cover is provided with an opening which is communicated up and down, the size of the part of the opening corresponding to the water bath pool is larger than the size of the outer wall of the cold slag tank, the lifting ruler is arranged on the upper part of the outer wall of the elevator, and the lifting wheels are arranged on one side or two sides of the lower opening of the closed cover.
Furthermore, the cold slag tank is placed on a steel plate at the bottom of the elevator, and the elevator is driven by the elevator wheel to drive the elevator to move up and down so that the cold slag tank can enter and exit the water bath.
Furthermore, the lifting wheel and the lifting ruler are driven by gears or sliding blocks or lead screws or rollers.
Furthermore, the sealing cover, the rotary cover and the exhaust pipe are all made of steel structures, the thicknesses of the sealing cover and a steel plate of the rotary cover are not less than 8mm, the diameter of the exhaust pipe is 300-1500 mm, the thickness of the pipe wall is not less than 5mm, and the anticlockwise upward rotation angle of the rotary cover is not less than 70 degrees.
Furthermore, the water supply pipe is a steel structure pipe, the diameter of the pipe is not less than 100mm, the water supply valve is an electromagnetic valve, and the water supply capacity of the water supply pipe to the water bath pool is 5-50 t/h.
The invention also provides a water bath cooling treatment method for the casting residues, and the water bath cooling treatment device for the casting residues comprises the following steps:
s1, placing a hot slag tank filled with high-temperature casting slag on a tilting machine by using a crown block, performing slag pouring operation by using the tilting machine, pouring the high-temperature casting slag into a cold slag tank, and hoisting the cold slag tank to a lift by using the crown block;
s2, starting the winch to drive the rotary cover to fall down, closing the closed cover, starting the lifting wheel, driving the lifting ruler to drive the lifter to move downwards into the water bath at a certain speed until the high-temperature casting residues in the cold slag tank are completely immersed in water;
s3, after the cold slag tank filled with the high-temperature casting residues is soaked in a water bath pool for a certain time, the high-temperature casting residues are cooled, self-pulverization and crushing are realized, the high-temperature casting residues are crushed into small blocks of residues, a large amount of smoke generated in the cooling process of the high-temperature casting residues in water is discharged through an exhaust pipe and a chimney, and water in the water bath pool is evaporated and supplemented through a water supply pipe;
and S4, after the high-temperature casting residues are soaked in the water bath, starting the winch to drive the rotary cover to lift, opening the closed cover, starting the lifting wheel, driving the lifting ruler to drive the lifter to ascend to the top of the water bath at a certain speed, and finally, lifting the cold residue tank filled with the small residues away from the lifter by adopting a crown block to transport the cold residue tank to a transfer yard for subsequent crushing, screening and magnetic separation.
Furthermore, the tipping and slag pouring time of the tipping machine is 10-300 s, and the tipping speed is 1-30 degrees/s.
Furthermore, the up-and-down moving speed of the lifter to the water bath is 0.1-3 m per minute, the soaking period of the cold slag tank filled with casting residues in the water bath is 10-180 minutes, and the lifter lifts according to the water in the water bath so as to enable the cold slag tank to keep contact with the water.
Further, the casting residue is cooled, self-pulverized and crushed into small slag particles, and the particle size of the small slag particles is 80% and is less than 300 mm.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the properties of expansion, cracking and the like of the high-temperature casting residues generated when meeting water to realize the high-efficiency pulverization and self-crushing of the casting residues, has simple production equipment, high system treatment efficiency, good production environment and high automation degree, greatly reduces the crushing treatment cost of the casting residues and has obvious economic benefit.
The invention firstly pours the casting residue into a cold residue tank with holes, and the cold residue tank is used for placing the large-block casting residue into a water bath pool by a crown block to soak in water bath, the casting residue has the temperature up to nearly thousand ℃, and the violent reaction is generated in the water bath process of the high-temperature casting residue. On one hand, the high-temperature casting residue is quenched when meeting water to generate severe physical shrinkage, on the other hand, a large amount of free calcium oxide in the casting residue generates volume expansion when meeting water to generate calcium hydroxide, and under the two action conditions, the high-temperature bulk casting residue is rapidly cracked and self-pulverized and crushed. The invention has the advantages of high treatment efficiency, low cost, good tightness, low environmental emission and the like, and realizes the high-efficiency low-cost environment-friendly treatment of the casting residues.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a water bath part of a casting slag water bath cooling treatment apparatus according to the present invention;
FIG. 2 is a schematic view of a charging part of the casting residue water bath cooling treatment device provided by the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, a casting slag water bath cooling treatment device includes: the device comprises a hot slag tank 1, a tipping machine 2, a cold slag tank 3, casting residue 4, a slag raking machine 5, an air hole 6, a lifter 7, a water bath 8, a lifting ruler 9, a lifting wheel 10, a closed cover 11, a rotary cover 12, a winch 13, an exhaust pipe 14, a chimney 15, a water supply pipe 16, a water supply valve 17 and small slag 18; the hot slag pot 1 is placed above the tipper 2 through a crown block; when the casting residue 4 is discharged, the cold slag tank 3 is arranged below the dumping slag of the tipping machine 2, and the slag removing machine 5 is arranged on one side of the tipping machine 2; when the casting residue 4 is in water bath, the cold residue tank 3 is placed on the lifter 7, and the lifter 7 is arranged in the water bath 8; the lifting ruler 9 is connected with a lifting wheel 10 on the upper part of the lifter 7; the closed cover 11 is arranged above the water bath 8, the rotary cover 12 is arranged above the closed cover 11, and the winch 13 is connected with the closed cover 11 and the rotary cover 12; the closed cover 11 is connected with a chimney 15 through an exhaust pipe 14; the water supply valve 17 and the water supply pipe 16 are arranged on the upper part of the side wall of the water bath 8.
Wherein, hot slag jar 1 is cask form cast steel structure, and jar wall thickness is not less than 100mm, and both sides upper portion is provided with the gudgeon and can be used for the overhead traveling crane handling, and hot slag jar 1 maximum slag charge is not less than 5 t.
The cold slag pot 3 is a barrel-shaped cast steel structure, the thickness of the pot wall is not less than 100mm, the upper parts of two sides are provided with trunnions which can be used for hoisting a crown block, and the maximum slag loading of the cold slag pot 3 is 1.5-5 times of that of the hot slag pot 1.
The air holes 6 are distributed at the bottom and the peripheral wall of the slag cooling tank 3, the diameters of the air holes 6 are different from 3 mm to 50mm, and the shortest distance between every two adjacent air holes 6 is not less than 50 mm. The elevator 7 is corrosion-resistant steel structure, the thickness of the steel plate at the bottom of the elevator 7 is not less than 20mm, and the cold slag tank 3 is placed at the bottom of the elevator 7 and the steel plate enters and exits the water bath 8.
The sealed cover 11, the rotary cover 12 and the exhaust pipe 14 are all made of steel structures, the thicknesses of steel plates of the sealed cover 11 and the rotary cover 12 are not less than 8mm, the diameter of the exhaust pipe 14 is 300-1500 mm, the thickness of the pipe wall is not less than 5mm, and the counterclockwise upward rotation angle of the rotary cover 12 is not less than 70 degrees.
The water supply pipe 16 is a steel structure pipe, the diameter of the pipe is not less than 100mm, the water supply valve 17 is an electromagnetic valve, and the water supply capacity of the water supply pipe 16 to the water bath 8 is 5-50 t/h.
According to another embodiment of the invention, another casting residue water bath cooling treatment method is provided, which specifically comprises the following steps:
step (1): placing a hot slag tank 1 filled with high-temperature casting slag 4 on a tipping machine 2 by adopting a crown block, performing slag pouring operation by adopting the tipping machine 2, pouring the high-temperature casting slag 4 into a cold slag tank 3, and hoisting the cold slag tank 3 to a lifter 7 by adopting the crown block;
step (2): the winch 13 is started to drive the rotary cover 12 to fall down, and the closed cover 11 is closed. Further, the lifting wheel 10 is started, the lifting ruler 9 is driven to drive the lifter 7 to descend into the water bath 8 at a certain speed until the high-temperature casting slag 4 in the cold slag tank 3 is completely immersed in water;
and (3): the cold slag pot 3 filled with the high-temperature casting slag 4 is soaked in the water bath 8 for a certain time, and then the high-temperature casting slag 4 is cooled, self-pulverized and crushed into small slag 18. A large amount of smoke generated in the process of cooling the high-temperature casting residues 4 in water is discharged out through an exhaust pipe 14 and a chimney 15, and water in a water bath 8 is evaporated and supplemented through a water supply pipe 16;
and (4): after the high-temperature casting slag 4 is soaked in the water bath 8, the winch 13 is started to drive the rotary cover 12 to lift, the closed cover 11 is opened, the lifting wheel 10 is started, and the lifting ruler 9 is driven to drive the lifter 7 to lift to the top of the water bath 8 at a certain speed. And finally, the cold slag tank 3 filled with the small slag blocks 18 is lifted away from the lifter 7 by using a crown block to be transported to a transfer yard so as to facilitate subsequent crushing, screening and magnetic separation.
Wherein the tipping and slag pouring time of the tipping machine 2 is 10-300 s, and the tipping speed is 1-30 degrees/s. The up-and-down moving speed of the lifter 7 to the water bath 8 is 0.1 to 3m per minute, and the soaking period of the cold slag tank 3 filled with the high-temperature casting slag 4 in the water bath 8 is 10 to 180 minutes. The high-temperature casting residue 4 is cooled, self-pulverized and crushed into small pieces of 18-mm slag, and the particle size of 80 percent of the small pieces of slag is less than 300 mm.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. The utility model provides a cast dross water bath cooling treatment device, its characterized in that, is including the portion of feeding and water bath part, the portion of feeding is used for cast dross to overturn and feeds, water bath part is used for cast dross water bath pulverization breakage, water bath part includes lift (7), water bath (8), lifting ruler (9), lifting wheel (10), airtight cover (11), rotatory lid (12), hoist engine (13), blast pipe (14), chimney (15), feed pipe (16), feed valve (17), fritter sediment (18), and cold dross jar (3) are placed on lift (7), and lift (7) are in water bath (8), and lifting ruler (9) are connected with lifting wheel (10) on lift (7), and water can keep in touch through lift (7) messenger cast dross and water bath (8).
2. The casting residue water bath cooling treatment device according to claim 1, wherein the closed cover (11) is fixedly arranged above the water bath (8), the rotary cover (12) is rotatably arranged at the top of the closed cover (11) in a covering manner, the winch (13) is connected with the closed cover (11) and the rotary cover (12), the closed cover (11) is connected with the chimney (15) through the exhaust pipe (14), and the water supply valve (17) and the water supply pipe (16) are arranged at the upper part of the side wall of the water bath (8).
3. The water bath cooling treatment device for the cast residues, as claimed in claim 2, is characterized in that the charging part comprises a hot residue tank (1), a tilting machine (2), a cold residue tank (3), the cast residues (4), a slag raking machine (5) and an air hole (6), the hot residue tank (1) is placed above the tilting machine (2), when the cast residues (4) are discharged, the cold residue tank (3) is placed below the slag dumping of the tilting machine (2), and the slag raking machine (5) is arranged on one side of the tilting machine (2).
4. The casting residue water bath cooling treatment device according to claim 3, wherein the cold residue tank (3) is of a barrel-shaped cast steel structure, the thickness of the tank wall is not less than 100mm, the air holes (6) are distributed in the tank bottom and the peripheral tank wall of the cold residue tank (3), the diameters of the air holes (6) are different from 3 mm to 50mm, and the shortest distance between two adjacent air holes (6) is not less than 50 mm.
5. The casting residue water bath cooling treatment device according to claim 3, wherein the hot residue tank (1) is of a barrel-shaped cast steel structure, the thickness of the tank wall is not less than 100mm, the maximum slag loading of the hot residue tank (1) is not less than 5t, and the maximum slag loading of the cold residue tank (3) is 1.5-5 times of that of the hot residue tank (1).
6. The casting residue water bath cooling treatment device according to claim 3, wherein the closed cover (11) is provided with an opening which is communicated up and down, the part of the opening corresponding to the water bath (8) is larger than the size of the outer wall of the cold residue tank (3), the lifting ruler (9) is arranged at the upper part of the outer wall of the lifter (7), and the lifting wheel (10) is arranged at one side or two sides of the lower opening of the closed cover (11).
7. The casting residue water bath cooling treatment device as claimed in claim 6, wherein the cold residue tank (3) is placed on a steel plate at the bottom of the lifter (7), and the lifter (7) is driven to move up and down by the lifting ruler (9) driven by the lifting wheel (10) so as to enable the cold residue tank (3) to enter and exit the water bath (8).
8. The water bath cooling treatment device for the casting residues according to claim 6, characterized in that the lifting wheel (10) and the lifting ruler (9) are driven by gears or sliding blocks or lead screws or rollers.
9. The casting residue water bath cooling treatment device according to claim 3, wherein the closed cover (11), the rotary cover (12) and the exhaust pipe (14) are all steel structures, the thickness of steel plates of the closed cover (11) and the rotary cover (12) is not less than 8mm, the diameter of the exhaust pipe (14) is 300-1500 mm, the thickness of the pipe wall is not less than 5mm, and the counterclockwise upward rotation angle of the rotary cover (12) is not less than 70 degrees.
10. The casting residue water bath cooling treatment device as claimed in claim 3, wherein the water supply pipe (16) is a steel structure pipe, the diameter of the pipe is not less than 100mm, the water supply valve (17) is an electromagnetic valve, and the water replenishing capacity of the water supply pipe (16) to the water bath pool (8) is 5-50 t/h.
11. A casting slag water bath cooling treatment method using the casting slag water bath cooling treatment device according to any one of claims 1 to 10, characterized by comprising the steps of:
s1, a hot slag pot (1) filled with high-temperature casting slag (4) is placed on a tilting machine (2) by adopting a crown block, the tilting machine (2) is used for deslagging, the high-temperature casting slag (4) is poured into a cold slag pot (3), and the cold slag pot (3) is lifted to a lifter (7) by adopting the crown block; s2, starting a winch (13) to drive a rotating cover (12) to fall down, closing a closed cover (11), starting a lifting wheel (10), driving a lifting ruler (9) to drive a lifter (7) to move down to a water bath (8) at a certain speed until high-temperature casting slag (4) in a cold slag tank (3) is completely immersed in water;
s3, after the cold slag tank (3) filled with the high-temperature casting slag (4) is soaked in a water bath pool (8) for a certain time, the high-temperature casting slag (4) is cooled, self-pulverization is carried out, the high-temperature casting slag is crushed into small slag blocks (18), a large amount of smoke generated in the cooling process of the high-temperature casting slag (4) in water is discharged out through an exhaust pipe (14) and a chimney (15), and water in the water bath pool (8) is evaporated and supplemented through a water supply pipe (16);
s4, after the high-temperature casting residues (4) are soaked in the water bath pool (8), a winch (13) is started to drive a rotary cover (12) to lift, a closed cover (11) is opened, a lifting wheel (10) is started, a lifting ruler (9) is driven to drive a lifter (7) to ascend to the top of the water bath pool (8) at a certain speed, and finally a crown block is adopted to lift a cold residue tank (3) filled with small residues (18) away from the lifter (7) and transport the cold residue tank to a transfer yard for subsequent crushing, screening and magnetic separation.
12. The water bath cooling treatment method for the casting residues as claimed in claim 11, wherein the tipping machine (2) has a tipping and deslagging time of 10-300 s and a tipping rate of 1-30 degrees/s.
13. The water bath cooling treatment method for the casting residues as claimed in claim 11, wherein the up-and-down movement rate of the lifter (7) to the water bath (8) is 0.1-3 m per minute, the soaking period of the cold residue tank (3) filled with the casting residues (4) in the water bath (8) is 10-180 minutes, and the lifter (7) is lifted according to the water in the water bath (8) to keep the cold residue tank (3) in contact with the water.
14. The water bath cooling treatment method for the casting residue as claimed in claim 11, characterized in that the cooling of the casting residue (4) is from pulverization to break into small pieces of slag (18) with particle size of 80% less than 300 mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI790089B (en) * | 2022-01-07 | 2023-01-11 | 中國鋼鐵股份有限公司 | Cooling water switching device and operation method thereof |
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| CN104372125A (en) * | 2014-10-20 | 2015-02-25 | 新兴河北工程技术有限公司 | Steel slag pressurized hot-stuffing device and using method thereof |
| CN106119448A (en) * | 2016-05-09 | 2016-11-16 | 浙江哈斯科节能技术有限公司 | A kind of method that hot steel slag quickly cools down |
| CN214572068U (en) * | 2021-04-02 | 2021-11-02 | 中冶节能环保有限责任公司 | Water bath cooling treatment device for casting residues |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372125A (en) * | 2014-10-20 | 2015-02-25 | 新兴河北工程技术有限公司 | Steel slag pressurized hot-stuffing device and using method thereof |
| CN106119448A (en) * | 2016-05-09 | 2016-11-16 | 浙江哈斯科节能技术有限公司 | A kind of method that hot steel slag quickly cools down |
| CN214572068U (en) * | 2021-04-02 | 2021-11-02 | 中冶节能环保有限责任公司 | Water bath cooling treatment device for casting residues |
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| TWI790089B (en) * | 2022-01-07 | 2023-01-11 | 中國鋼鐵股份有限公司 | Cooling water switching device and operation method thereof |
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