MX2008008823A

MX2008008823A - Liquid slag quick quenching apparatus and method.

Info

Publication number: MX2008008823A
Application number: MX2008008823A
Authority: MX
Inventors: Marion Bergeron
Original assignee: Excell Technologies Llc
Priority date: 2006-01-09
Filing date: 2007-01-09
Publication date: 2008-11-06
Also published as: US20070158883A1; EP1977019A2; WO2007081937A2; CA2636472A1; WO2007081937A3; CN101389775A

Abstract

An apparatus and method for quick quenching liquid slag, which includes a bay area for receiving the liquid slag and a water supply system for spraying, or quick quenching, the liquid slag provided on the bay area with water to cool the liquid slag and turn it into a crystalline form. The bay area includes an angled and generally flat surface provided between first and second ends, with the first end defining a high end and the second end defining a low end, such that liquid slag provided to the bay area adjacent the first end will run down the bay area toward the second end. The water supply system is provided operatively above the bay area and applies water to the liquid slag on the bay area such that the liquid slag cools and turns into a crystalline form. Additional amounts of liquid slag may be poured on top of previous cooled and quenched crystalline slag and quick quenched with water in a similar manner.

Description

APPARATUS AND METHOD TO QUICKLY APPROACH LIQUID ESCORIA FIELD OF THE INVENTION The present invention is directed to an apparatus and method for quenching liquid slag and, more particularly, to an improved apparatus and method for rapid quenching of liquid slag.

BACKGROUND OF THE INVENTION Slag is a waste byproduct of the steelmaking process. The slag is typically generated in molten or liquid form, by blast furnaces, electric arc furnaces, ODA furnaces (Argon-Oxygen Decarburization), and so on. The slag generated by these kilns is at an extremely high temperature and must be cooled so that it can be easily handled and disposed of or otherwise used. A known method for cooling liquid slag is to simply pour it on the ground to cool it. Once the liquid slag cools, the slag can be left on the ground where it was poured, or the slag can be collected and moved to a new location where it can either be used for landfill purposes or can be further processed for other Applications. As the liquid slag cools on the ground, it typically transforms into a dusty material and generates an appreciable amount of fine dust. The cooled slag, which is in a fine powdery form, generates fine dust during handling, phase separation and storage. During phase separation, it may be necessary for the fine, powdery slag to be moistened to reduce the amount of fine dust generated. The handling and transport of the cooled slag in its powder form is typically difficult and can create an unsafe or hazardous work environment, especially in windy conditions. The present invention is directed to overcoming one or more of the problems mentioned above.

BRIEF DESCRIPTION OF THE INVENTION The present invention includes an apparatus for rapidly quenching liquid slag, which includes a compartment area for receiving the liquid slag and a water supply system for rapidly spreading or quenching the liquid slag provided in the compartment area with water to cool the liquid slag. The compartment area includes an angled and generally planar surface provided between the first end and the second end, with the first end defining a high end and the second end defining a low end, such that the liquid slag provided to the area of compartment adjacent to the first end will extend and run down to the compartment area toward the second end. The water supply system is operatively provided above the compartment area and applies water to the liquid slag over the compartment area such that the liquid slag cools and becomes a crystalline form. Typically, the compartment area is configured in such a way that the liquid slag will extend through the compartment area and will run down to the depression area, but will stop the downward stroke in the compartment area before reaching the second end of the area. of compartment (that is, the area of depression). In this way, the cooled, crystallized slag must be completely present over the compartment area. In general, the water that is applied to the liquid slag is uniform with respect to pressure and application, with a pressure typically in the range of 0.702-2.106 kg / cm2 (10-30 lb / in2). It should be noted that this pressure range is exemplary only and other pressures may be used depending on the amount and type of sprinklers used without departing from the spirit and scope of the present invention. In one form, the compartment area includes a continuous angle of inclination extending from the first end to the second end. In another form, the compartment area includes a first area adjacent to the first end having a first angle of inclination and a second area adjacent to the second end having a second angle of inclination, with the first angle of inclination that is greater than the second angle of inclination. However, any configuration of angles of the compartment area can be implemented without departing from the spirit and scope of the present invention and will generally depend on the temperature and viscosity of the liquid slag, as well as the amount of slag that is rapidly quenched. The angle (s) of inclination of the compartment area will typically be selected so that the layer of the liquid block will stop the downward stroke in the compartment area before reaching the second end thereof. In order to be able to withstand the high temperature of the liquid slag, the compartment area is formed of one or more steel blocks, or it may be formed of other materials capable of withstanding the high temperatures of the liquid slag. In a further form, a drainage platform is provided adjacent the first end of the compartment area and the liquid slag is poured over the compartment area from the drainage platform. A depression area adjacent to the second end of the compartment area is provided, with the depression area that receives the runoff water applied to the liquid slag from the compartment area. A sedimentation tank may be provided at one end of the depression area to receive water from the depression area. The sedimentation tank includes a water drain and / or a pump which drains and / or pumps the water from the sedimentation tank for recycling (for example, additional quench or other applications). In a still further form, the depression area includes an access ramp that accommodates a vehicle for removing chilled and quenched crystalline slag from the compartment area. A method in accordance with the present invention for rapidly quenching liquid slag is also provided. The method includes the steps of providing a compartment area having an angled and generally planar surface provided between the first end and the second end, with the first end defining a high end and the second end defining a low end, pouring the liquid slag over the compartment area adjacent to the first end, such that the liquid slag extends through the surface of the compartment area and runs down into the compartment area towards the second end and apply water to the slag liquid in the compartment area in such a way that the liquid slag cools and becomes a crystalline form. Typically, the compartment area is configured in such a way that the liquid slag will extend through the compartment area and will run down to the depression area, but will stop the downward stroke in the compartment area before reaching the second end of the area. of compartment (that is, the area of depression). In this way, the cooled, crystallized slag must be completely present in the compartment area. Generally, the water applied to the liquid slag is uniform with respect to pressure and application, with a pressure typically in the range of 0.702-2.106 kg / cm2 (10-30 lb / in2). However, other water pressures are contemplated and can be used without departing from the spirit and scope of the present invention. The runoff water from the compartment area is collected in a depression provided adjacent to the second end and is directed to a settling tank where it can be recycled for additional quench or other applications.

In one form, the compartment area includes a continuous angle of inclination extending from the first end to the second end. In another form, the compartment area includes a first area adjacent the first end having a first angle of inclination and a second area adjacent to the second end having a second angle of inclination, with the first angle of inclination being greater than the angle of inclination. second angle of inclination. However, any configuration of angles of the compartment area can be implemented without departing from the spirit and scope of the present invention. In order to be able to withstand the high temperature of the liquid slag, the compartment area is formed of one or more steel blocks or can be formed of other materials capable of withstanding the high temperatures of the liquid slag. In a further form, the additional liquid slag can be poured over the compartment area in the upper part of the previously cooled and quenched crystalline slag and the water is applied to the additional liquid slag in the compartment area in such a way that the slag Additional liquid cools and becomes a crystalline form. A front loader, or other similar vehicle, may be used to remove chilled and smothered crystalline slag from the compartment area. An object of the present invention is to rapidly quench liquid, or molten, slag to cool the slag in a crystalline form. A further object of the present invention is to rapidly quench the liquid slag by generating a minimum amount of fine powder. A still further objective of the present invention is to cool and process the liquid slag with a reduction in the hours of operation of the front loader. Other objects, aspects and advantages of the present invention can be obtained from a study of the specification, the drawings and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top view of an exemplary apparatus for rapidly quenching liquid slag according to the present invention and Figure 2 is a cross-sectional view of the exemplary apparatus shown in Figure 1 taken along the length of AA line.

DETAILED DESCRIPTION OF THE INVENTION With reference to Figures 1-2, an exemplary apparatus for rapidly quenching liquid or molten slag, generally shown at 10, is illustrated. The apparatus 10 generally includes a compartment area 12 and a depression area 14. The liquid slag is cooled in the compartment area 12 by the application of water under pressure, so that the cooled slag remains in the compartment area 12. The depression area 14 receives the water that flows from the area of the tank. compartment 12 and is directed to a settling tank 16, where the water can be recycled for additional rapid quench or other applications. The compartment area 12 generally includes a plurality of steel blocks 18 which are installed parallel to form a flat surface. The liquid slag (not shown) is poured onto the steel blocks 18 for cooling and thus it is necessary that the steel blocks 18 be able to withstand the high temperature of the liquid slag. The steel blocks 18 are oriented generally at an angle, with the low end 19 adjacent the depression area 14, such that the liquid slag and the water applied to the liquid slag run down in the steel blocks 18 towards the depression area 14. In the exemplary form of Figures 1 and 2, the compartment area 12 is approximately 15.25 meters (50 feet) long and the depression area 14 is approximately 24.40 meters (80 feet) long. However, other lengths are contemplated for these areas. A draining platform 20 is provided at the high end 21 of the steel blocks 18. The drainage platform 20 is typically made of concrete, and it can be approximately 1.22-3.05 meters (4-10 feet) in height. However, other heights are contemplated. The liquid slag (not shown) is transported to the dump platform 20 by trucks, slag crucible conveyors or other suitable vehicles and poured onto the steel blocks 18 of the compartment area 12. The poured liquid slag will be extended through the steel blocks 18 and will run downward toward the depression area 14 due to the angle of inclination of the steel blocks 18. To prevent liquid slag from trickling down the sides of the steel blocks 18, plates are provided vertically oriented steel 22 on opposite sides of the surface formed by the steel blocks 18. In the exemplary form of Figures 1 and 2, the steel blocks 18 have a width of approximately 7.32 meters (24 feet) from one side to another, which is typically sufficient to accommodate the spilled liquid slag without resulting in excess slag at the edges. However, other widths are contemplated for the steel blocks 18. In one form, the steel blocks 18 have two different inclination angles extending from the pouring platform 20 to the depression area 14. A first area, shown in general at 24, it is adjacent to the drainage platform 20 and includes a first angle of inclination, while a second area, shown generally at 26, extends to the depression area 14 and includes a second angle of inclination. As shown in Figure 2, the first angle of inclination of the first area 24 is greater than the second angle of inclination of the second area 26. In this way, the liquid slag poured onto the steel blocks 18 is poured from the pouring platform 20 over the first area 24. The liquid slag will start to run towards the depression area 14 and will spread generally evenly and thinly through the steel blocks 18. Once the liquid slag hits the second Area 26, which is oriented at less than one angle, will tend to run more slowly. The angle (s) of inclination of the steel blocks 18 must be selected so that the liquid slag will stop the down stroke in the steel blocks 18 before it reaches the depression area 14. This helps in the removal of the slag since all of the cooled and crystalline slag will remain in the compartment area 12 and also helps to mitigate a dangerous condition since if the liquid slag traps some water that remains in the depression area it may occur an explosion. In one embodiment, as shown in Figure 2, the angle of inclination of the first area 24 is about 17 °, while the angle of inclination of the second area 26 is about 5o. However, these angles are for illustrative purposes only and other angles of inclination are contemplated without departing from the spirit and scope of the present invention. For example, the steel blocks 18 can be oriented at a continuous angle or they can be arranged in such a way that they have several different angles so as to extend from the pouring platform 20 to the depression area 14. In exemplary form of the present invention, the angle of inclination of the steel blocks 18 will tend to decrease as one moves away from the dump platform 20 towards the depression area 14. However, any configuration of inclination angles of the steel blocks 18 can be implemented without departing from the spirit and scope of the present invention. The only requirement is that the liquid slag be spread through the steel blocks 18 (a thin layer of liquid slag will cool more quickly) and I run down to the depression area 14, 'stopping before ring the depression area 14.

'The angle (s) of inclination of the steel blocks 18 I (ie, the compartment area 12) will depend on a number of factors, such as, but not limited to, the temperature and viscosity of the slag, as well as the amount of slag that is quenched. In general, a higher temperature slag will be more viscous than a lower temperature slag. Typically, the more When molten (ie, more viscous) is the liquid slag, the steel blocks 18 must have a smaller angle to prevent the liquid slag from flowing down the steel blocks 18 very rapidly and possibly run off the steel blocks 18 and within the area of depression 14. The objective is to have the slag spread evenly and thin through the steel blocks 18 and to stop before it res the end of the steel blocks 18. The steel blocks 18 (ie. the compartment area 12) must be done sufficiently long so that the liquid slag stops the downward stroke in the steel blocks 18 before it res the depression area 14. As shown in Figure 2, in one form, the compartment area 12 is approximately 15.25 meters ( 50 feet) long. However, they are contemplated other lengths and will generally depend on the temperature, viscosity and amount of liquid slag that is cooled. Once the liquid slag is poured over the compartment area 12 and extends through the surface formed by the steel blocks 18, it is struck with low pressure cold water via a water supply system 28. The water cools the liquid slag almost instantaneously (a thin layer of liquid slag will cool more quickly than a thicker layer). As the liquid slag cools quickly, or suffocates, using the low-pressure water, it becomes a crystalline, or glass-like, form. Since the crystallized, cooled slag must be present on the steel blocks 18 in the compartment area 12, it can be easily removed using a front loader or other similar vehicle. As the slag hardens and becomes a granulated form, some fine dust can be generated. The water that is applied to the liquid slag helps to prevent fine dust from being transported in the air. Additionally, the spray bars and nozzles, which constitute the water supply system 28, can be designed to contain the steam generated as the slag cools within the quench area. For example, the spray nozzles used can apply a water spray similar to a cone on the slag! liquid Typically, the spray bars and nozzles will be placed to spread water over the entire surface of the steel blocks 18 and thus over all the liquid slag that is cooled. The spray forms an umbrella over the slag catching any steam generated. This trapped vapor will cool down and transform back into water. As a result, approximately 25-30% less steam can be generated in the cooling of the liquid slag However, the spray bars and nozzles can also be configured in such a way that no steam is contained during the rapid quench process. Additionally, the nozzles can be installed along side of the steel blocks 18 spreading the water towards the liquid slag. Typically, the water applied to the liquid slag will be uniform with respect to pressure and application. The present invention contemplates the use of a low pressure water system (for example, between approximately 0.702-2.106 kg / cm2 (10-30 lb / in2) to apply a high volume of water (eg, between approximately 3028.33-7570.82 liters / minute (800-2000 gallons / minute)) in order to quickly quench properly the liquid slag. The amount of water needed to completely cool the liquid slag will depend on a variety of factors, such as, but not limited to, temperature, viscosity and the amount of liquid slag that is cooled (typically the temperature of the slag will decrease from the moment it is extracted). until the moment it is carried to the platform to be quenched), the angle of the steel blocks 18, the thickness of the liquid slag as it runs down the steel blocks 18, the temperature of the water (the water used to cool the slag it can become hotter if the water is being recycled for use), the foundry workshop practices which can affect the slag viscosity, and so on. In order to determine the appropriate amount of water for use to cool the liquid slag, it is contemplated to first perform a "test run" of classes and to cool a batch of liquid slag by applying water at a rate of approximately 4542.49 liters / minute (1200 gallons / minute) for 10 minutes. The slag is then checked to determine if it has cooled completely and adjustments can be made to the amount of water applied and also to the angle of the steel blocks to determine the optimum parameters for the cooling of the liquid slag. If the bottom of the slag together with the steel blocks 18 does not cools and becomes crystalline, it will generally turn into a dusty form which is undesirable. ! As the liquid slag cools and becomes a granulated form, the water that is applied to the liquid slag continues to run down into the steel blocks 18 and is received in the depression area 14. Flanges 30 are formed on either side of the depression area 14 and the channel as it flows down to the depression area 14 (see Figure 1). The flanges 30 can be formed of any material and, in one form, are formed of slag or a fine aggregate or other similar material. The depression area can be of virtually any length and, in a manner shown in Figure 2, is 24.4 meters (80 feet) in length. The settling tank 16 is provided in one end of the depression area 14 and receives the water that I flows downwardly into the depression area 14. A water drain or waste pump 32 is provided which drains or pumps the water from the sedimentation tank 16 and can direct the water to an area where it can be recycled 20 for the suffocation additional or other applications. Typically, drain / pump 32 will include a cover to prevent large fragments from entering the drain / pump. It has been found that the water runoff from the quench process described above is for the most part clear and free of fine particles and, thus, the water can be recycled through a closed loop system and can be recycled. reuse for additional suffocation with minimal mechanical and / or chemical treatment. The tempered slag water can also be directed to a single tank or reservoir system where water can be pumped immediately to the suffocation spray bars. Depending on the frequency and volume of the liquid slag that is being cooled, a larger reservoir system or pond that is flooded one after the other or a cooling tower can be used to help cool the water before being reused for help increase the effectiveness of water After the liquid slag is cooled, it remains on the steel blocks 18. As previously mentioned, in order that the cooled slag be easily removed, the length of the compartment area 12 must be such that the slag stops the movement before to reach the low end 19 of the compartment area 12. A second batch of liquid slag can be poured over the top of the slag already cooled and quenched with low pressure cold water in the manner previously described. In this case, the duration of the quench will be adjusted to ensure that sufficient heat remains in the slag and steel blocks 18 to consume all remaining water and moisture before emptying another layer of liquid slag over the previous layer. In one form, it is contemplated that the cooled slag and steel blocks 18 remain at a temperature of approximately 93.4-121.2 ° C (200-250 ° F) to consume any excess water or moisture that remains before emptying a batch. additional slag on top for cooling. However, other temperatures can be used without departing from the spirit and scope of the present invention. The cooling of a variety of batches of liquid slag over the top of another helps reduce material handling costs and a plurality of batches of liquid slag can be cooled on top of another. Once a desired amount of slag has been cooled, it is removed from the steel blocks 18. A front loader, or other similar vehicle, has access to the depression area 14 via an access ramp of the magazine 34. The front loader will raise the depression area 14 and remove the cooled liquid slag from the steel blocks 18. The cooled slag, which is in a granular, or crystalline form, can be used for a variety of purposes, including landfills, Applications related to concrete or can be further processed for other applications. In its crystalline form, the cooled slag generally has concrete-like and / or high pozzolanic properties, which make it particularly useful for applications related to concrete. As water spreads on the liquid slag, care is taken so that the water is applied with uniform pressure and application. In this manner, the spray bars and nozzles of the water supply system 28 should be designed to uniformly spread the liquid slag with water at a constant pressure and volume. In the event that water enters under the hot material of the liquid slag, explosions may occur that send a spray of molten slag into the air. In this way, care must be taken, and the spray bars and nozzles of the water supply system 28 are designed, such that the low pressure water is applied uniformly over the liquid slag. While a preferred embodiment of the present invention contemplates spreading liquid slag with low pressure water, high pressure water can also be used without departing from the spirit and scope of the present invention, provided care is taken that water does not Enter under the liquid slag. For example, water pressure can be dictated by the specific design of the nozzle used.

It is imperative that the compartment area 12 be completely free of water, puddles of water and moisture before emptying the liquid slag thereon or an explosion may occur. Additionally, the depression area 14 should also be free of water or puddles of water in case the liquid slag drips into the compartment area 12 and into the depression area 14. By using the apparatus and method of the present invention Several advantages, which are identified below. o Liquid slag is poured in a controlled manner. o No fine dust or very little fine dust is generated when the liquid slag is poured onto the steel blocks. o Liquid slag, when properly sprayed with a high volume of water, should not generate fine dust, only steam. o The steam generated during tempering is generally free of fine dust particles. o The spray bars and nozzles of the water supply system can be designed to contain the steam generated within the suffocated area. o Liquid slag changes its properties when it is quickly suffocated. After the slag is quickly quenched, it is in a vitreous and grainy form, rather than a fine, dusty form using the methodology of the prior art. It is very easy to break and remove the slag quickly. Slag dross quickly weighs normally less than regular slag. The tempered slag quickly generates a minimum amount of fine dust during handling, phase separation and / or storage. It is not necessary for the smothered slag to be rapidly moistened as it separates into phases. Water runoff during rapid quenching is mostly clear and free of fine particles. Rapid quench water can be completely recycled through a closed loop system and can be reused for additional rapid quenching without the need for mechanical or chemical treatment. The slag crucible with the molten slag can be poured over the other slag cooled several times before it is required to remove the smothered slag with a front loader or other similar vehicle, or there is a large reduction in the hours of operation of the front loader Approximately 60%. o There are substantial cost savings in the repair, maintenance and replacement of front loader tires, or The rapid quench method and apparatus of the present invention require low maintenance and energy consumption, or the apparatus and method of rapid quenching of the present invention facilitates the segregation of slag and metallic materials, or slag metal slag films quickly are much thinner and easier to cut with spears. The apparatus and rapid quench method of the present invention reduce possible fine dust emissions by approximately 90%. The present invention provides a cost-effective apparatus and method for cooling liquid slag in a useful crystalline form. While the present invention has been described with particular reference to the drawings, it should be understood that various modifications may be made to the apparatus and method of the present invention without departing from the spirit and scope thereof.

Claims

CLAIMS 1. An apparatus for rapidly quenching liquid slag, characterized in that it comprises: a compartment area having an angled and generally planar surface provided between the first end and the second end, wherein the first end defines a high end and the second end defines a low end, such that the liquid slag provided to the compartment area adjacent to the first end will run downwardly in the compartment area toward the second end; and a water supply system operatively provided above the compartment area, the water supply system applies water to the liquid slag on the compartment area such that the liquid slag cools and becomes a crystalline form. The apparatus according to claim 1, characterized in that it further comprises a dump platform provided adjacent to the first end of the compartment area, wherein the liquid slag is poured over the compartment area of the dump platform. The apparatus according to claim 1, characterized in that it also comprises a depressed area provided adjacent to the second end of the compartment area, "the compartment area receives water from the compartment area applied to the liquid slag. In addition, it comprises a sedimentation tank that receives water from the depression area, where the water in the sedimentation tank is recycled for further quenching 5. The apparatus according to claim 3, characterized in that the depression area includes an access ramp for accommodating a vehicle for removing cooled and smothered crystalline slag from the compartment area 6. The apparatus according to claim 1, characterized in that the water of the supply system of Water is uniformly applied to the liquid slag at a pressure of approximately 0.702-2 .106 kg / cm2 (10-30 lb / in2). The apparatus according to claim 1, characterized in that the water applied to the liquid slag by means of the water supply system is uniform with respect to the pressure and the application. The apparatus according to claim 1, characterized in that the compartment area includes a first area adjacent the first end having a first angle of inclination and a second area adjacent to the second end having a second angle of inclination. The apparatus according to claim 8, characterized in that the first inclination angle is greater than the second inclination angle. 10. The apparatus according to claim 1, characterized in that the compartment angle includes a continuous inclination angle extending from the first end to the second end. The apparatus according to claim 1, characterized in that the compartment area comprises a plurality of steel blocks. The apparatus according to claim 1, characterized in that the water supply system applies water to the liquid slag at a rate of about 3028.33-7570.82 liters / minute (800-2000 gallons / minute). The apparatus according to claim 1, characterized in that the compartment area is configured in such a way that the liquid slag extends and stops the downward stroke in the compartment area before reaching the second end. 14. A method for rapidly quenching liquid slag, characterized in that it comprises the steps consisting of: providing a compartment area having an angled and generally planar surface provided between the first end and the second end, wherein the first end defines a high end and the second end defines a low end, - pouring the liquid slag over the compartment area adjacent to the first end, such that the liquid slag extends through the surface of compartment area and runs down into the area from compartment to the second end; and applying water to the liquid slag in the compartment area in such a way that the liquid slag cools and becomes a crystalline form. 15. The method according to claim 14, characterized in that the compartment area is configured in such a way that the liquid slag extends and stops the downward stroke in the compartment area before reaching the second end. 16. The method according to claim 15, characterized in that it further comprises removing the cooled and smothered crystalline slag from the compartment area. ? 17. The method of compliance with Claim 14, characterized in that it also comprises i collecting the water applied to the liquid slag in a depression area adjacent to the second end for recycling. The method according to claim 14, characterized in that the water is uniformly applied to the liquid slag at a pressure of about 0.702-2.106 kg / cnr (10-30 lb / in). The method according to claim 14, characterized in that the water applied to the liquid slag is uniform with respect to the pressure and the application. 20. The method according to claim 14, characterized in that the compartment area includes a first area adjacent the first end having a first angle of inclination and a second area adjacent to the second end having a second angle of inclination. 21. The method according to claim 20, characterized in that the first inclination angle is greater than the second inclination angle. 22. The method according to claim 14, characterized in that the compartment angle includes a continuous inclination angle extending from the first end to the second end. 23. The method according to claim 14, characterized in that the compartment area comprises a plurality of steel blocks. The method according to claim 14, characterized in that the water is applied to the liquid slag at a rate of about 3028.33-7570.82 liters / minute (800-2000 gallons / minute). 25. The method according to claim 14, characterized in that it further comprises the steps consisting of: pouring additional liquid slag over the compartment area adjacent to the first end on top of the previously slaked and quenched crystalline slag; and applying water to the additional liquid slag in the compartment area such that the additional liquid slag cools and becomes a crystalline form. 26. A method for rapidly quenching liquid slag, characterized in that it comprises the steps of: extending a first batch of liquid slag through a sloping surface to form a first layer of liquid slag; applying water to the first layer of liquid slag such that the liquid slag cools and becomes a crystalline form; and collecting the water applied to the liquid slag in a depression area adjacent to the sloping surface for recycling. 27. The method according to claim 26, characterized in that it also comprises the steps consisting of: extending a second batch of liquid slag through the inclined surface on top of the crystalline slag previously cooled and quenched to form a second liquid slag layer; and applying water to the second layer of liquid slag in such a way that the additional liquid slag cools and becomes a crystalline form.