Hot disintegration pool for treating steel slag

Abstract

The utility model relates to the technical field of steel slag treatment, and discloses a steel slag treatment hot stuffiness pool which comprises a hot stuffiness tank, a water seal tank is connected to the top end of the hot stuffiness tank in the circumferential direction, a seal cover is detachably arranged on the water seal tank in a sealed mode, a protective connecting buckle is connected between the seal cover and the hot stuffiness tank, a monitoring assembly and an exhaust valve are connected to the seal cover, and the exhaust valve is connected to the monitoring assembly. The bottom end of the hot tank is connected with a water drainage pipe, and the hot tank is connected with a water inlet assembly and a ventilation pipe. Compared with the prior art, the device has the advantages that sufficient contact between steel slag and water is improved, the steel slag can be digested more uniformly, later red slag is avoided, transportation is facilitated, and explosion caused by combustible gas enrichment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel slag treatment, in particular to a steel slag treatment hot stuffy pool. Background Art

[0002] There are about 10% residual steel in steel slag. Except for a small amount of large pieces of residual steel that are recovered by magnetic separation, most of them are in the form of particles and wrapped together with the slag. It is difficult to separate them. They are discarded with the slag, resulting in a waste of metallic iron resources. The existing steel slag treatment technologies mainly include hot pouring method, granulation method (drum method, wind quenching method, water quenching method), and hot stuffing method; among them, the hot stuffing method uses the residual heat of molten steel slag to generate steam through water spraying, has low energy consumption, can treat steel slag of various temperatures and states, and the treatment rate reaches 100%. The tailings have good stability and can be fully utilized.

[0003] The existing slag treatment hot stuffing pool generates a large amount of supersaturated water vapor during the hot stuffing process and maintains a certain pressure through a pressure vessel, which promotes the diffusion and penetration of water vapor into the cracks of the broken slag, greatly improving the hot stuffing efficiency. However, most of them adopt the form of intermittent water pumping from the top. When the upper slag is large, the water contacts the slag and vaporizes upward, forming an "umbrella effect", which cannot fully contact the bottom slag, resulting in uneven digestion reaction of the slag. In addition, some tailings still have red slag in the late stage of hot stuffing, which is inconvenient to transport, and the enrichment of combustible gas during slag discharge is prone to explosion. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the top water-pumped steel slag is not uniformly digested, the hot slag is discharged and there is still red slag, which is inconvenient to transport, and the enrichment of combustible gas is easy to cause explosion.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a steel slag treatment hot stuffy pool, including a hot stuffy tank, a water seal groove is circumferentially connected to the top of the hot stuffy tank, a cover is detachably sealed on the water seal groove, a protective connecting buckle is connected between the cover and the hot stuffy tank, a monitoring component and an exhaust valve are connected to the cover, a drain pipe is connected to the bottom of the hot stuffy tank, and a water inlet component and a ventilation pipe are connected to the hot stuffy tank.

[0008] Furthermore, the protective connecting buckle includes a hinged seat connected to the circumference of the water seal groove, a threaded rod is hingedly provided on the hinged seat, a fixed seat is relatively connected on the cover, a limiting groove is connected to the outer side of the fixed seat, the limiting groove cooperates with the threaded rod, the threaded rod passes through the limiting groove and is provided with a locking nut through a threaded connection. When the cover is placed in the water seal groove, the threaded rod is rotated to pass through the limiting groove, and then the bottom end of the locking nut is tightly abutted against the fixed seat through the threaded cooperation of the locking nut and the threaded rod. At this time, the cover is sealed and cooperated with the water seal groove.

[0009] Furthermore, the heat-stifling tank, the water-sealing groove and the hinged seat are integrally formed, and the fixing seat and the sealing cover are integrally formed, so as to improve the connection strength of the device.

[0010] Furthermore, the inner side wall of the water seal groove is tilted inwardly to facilitate the guidance of the sealing cover and the centering cooperation between the sealing cover and the water seal groove.

[0011] Furthermore, the water inlet assembly includes a water tank, the top of which is connected to a water pump, the input end of the water pump passes through the water tank and extends to the bottom of the water tank, the output end of the water pump is connected to a water inlet pipe, the other end of the water inlet pipe is connected to the bottom of the hot stuffy tank, and the water inlet pipe is evenly distributed around the bottom of the hot stuffy tank with a number of water inlet holes. By starting the water pump, the input end of the water pump introduces the water in the water tank into the hot stuffy tank through the water inlet pipe, and the high-temperature steel slag at the bottom encounters a large amount of water and drops in temperature rapidly. During the rapid cooling process, the minerals in the slag undergo drastic phase changes, generating stress, causing the steel slag to rupture; due to the high temperature of the steel slag in the hot stuffy tank, the water is heated and vaporized to form water vapor, and the water vapor rises upward, and the free f-CaO and f-MgO in the top steel slag react rapidly with the water vapor to digest, thereby achieving slag-iron separation.

[0012] Furthermore, the other end of the drain pipe is connected to the top of the water tank, and a valve is provided on the drain pipe. The water tank is connected to a filter plate below the drain pipe, and the water pump input end passes through the filter plate. When drainage is needed later, the valve is opened and water is introduced into the water tank through the drain pipe. After being filtered through the filter plate, it can be reused, which is convenient for energy saving.

[0013] Furthermore, the monitoring component includes a plurality of monitoring sensors, which can monitor the pressure and the concentration of combustible gas. The monitoring sensors are evenly distributed around the circumference of the array cover. The air pressure and the concentration of combustible gas in the hot stuffy tank can be monitored in real time through the monitoring sensors, which facilitates the coordination with the exhaust valve to control and adjust the pressure in the hot stuffy tank and reduces the risk of explosion.

[0014] 3. Beneficial Effects

[0015] The advantages of the utility model compared with the prior art are:

[0016] The coordinated arrangement of the hot stuffing tank, the water seal groove, the sealing cover and the protective connecting buckle facilitates the formation of a sealed chamber in the hot stuffing tank and the sealing cover, so that the steel slag can be hot stuffed under pressure in the sealed chamber to promote the digestion reaction of the steel slag; the coordinated arrangement of the water inlet assembly and the drainage pipe facilitates the introduction of water from the bottom of the hot stuffing tank, and then the steel slag is soaked and stewed, thereby promoting the digestion reaction of the steel slag and avoiding the possibility of red slag still existing in the steel slag in the late stage of slag stuffing; the coordinated arrangement of the monitoring assembly, the exhaust valve and the ventilation pipe facilitates the monitoring assembly to monitor the air pressure and the concentration of combustible gas in the hot stuffing tank, and cooperates with the exhaust valve to facilitate the control and adjustment of the pressure in the hot stuffing tank; the arrangement of the ventilation pipe facilitates the introduction of non-flammable gas in the late stage of hot stuffing, and then pushes out the gas in the hot stuffing tank to avoid explosion accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a steel slag treatment hot and stuffy pool of the utility model. Figure 1 .

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of A.

[0019] Figure 3 This is a schematic diagram of the structure of a steel slag treatment hot and stuffy pool of the utility model. Figure 2 .

[0020] Figure 4 The utility model is a cross-sectional structural schematic diagram of a steel slag treatment hot stuffy tank.

[0021] As shown in the figure: 1. Hot stuffy tank, 2. Water seal groove, 3. Sealing cover, 4. Exhaust valve, 5. Drain pipe, 6. Ventilation pipe, 7. Articulated seat, 8. Threaded rod, 9. Fixed seat, 10. Limiting groove, 11. Locking nut, 12. Water pump, 13. Water inlet pipe, 14. Filter plate, 15. Monitoring sensor, 16. Water inlet hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] Combined with Figure 1 , Figure 2 and Figure 3A hot stuffy tank for steel slag treatment, comprising a hot stuffy tank 1, a water seal groove 2 is circumferentially connected to the top of the hot stuffy tank 1, the inner side wall of the water seal groove 2 is inclined inwardly, a cover 3 is detachably sealed on the water seal groove 2, a protective connecting buckle is connected between the cover 3 and the hot stuffy tank 1, the protective connecting buckle comprises a hinged seat 7 connected to the circumference of the water seal groove 2, the hot stuffy tank 1, the water seal groove 2 and the hinged seat 7 are integrally formed, a threaded rod 8 is hingedly provided on the hinged seat 7, a fixing seat 9 is relatively connected to the cover 3, the fixing seat 9 and the cover 3 are integrally formed, a limiting groove 10 is connected to the outside of the fixing seat 9, the limiting groove 10 cooperates with the threaded rod 8, the threaded rod 8 passes through the limiting groove 10 and is provided with a locking nut 11 through a threaded connection;

[0025] Through the coordinated arrangement of the hot stuffy tank 1, the water seal groove 2, the sealing cover 3 and the protective connecting buckle in the above structure, it is convenient to ensure that a sealed chamber is formed in the hot stuffy tank 1 and the sealing cover 3, which is convenient for the steel slag to be hot stuffy under pressure in the sealed chamber and promote the digestion reaction of the steel slag. The hot stuffy tank 1, the water seal groove 2 and the hinged seat 7 as well as the fixed seat 9 and the sealing cover 3 are integrally formed, which is convenient for improving the connection strength of the device; the inner side wall of the water seal groove 2 is inclined inwardly, which is convenient for guiding the sealing cover 3 and facilitating the centering coordination of the sealing cover 3 and the water seal groove 2.

[0026] Combined with Figure 4 A drainage pipe 5 is connected to the bottom of the hot stuffy tank 1, and a water inlet assembly is connected to the hot stuffy tank 1. The water inlet assembly includes a water tank. A water pump 12 is connected to the top of the water tank. The input end of the water pump 12 passes through the water tank and extends to the bottom of the water tank. A water inlet pipe 13 is connected to the output end of the water pump 12. The other end of the water inlet pipe 13 is connected to the bottom of the hot stuffy tank 1. The water inlet pipe 13 is evenly distributed with a plurality of water inlet holes 16 in the circumferential direction of the bottom of the hot stuffy tank 1.

[0027] The coordinated arrangement of the water inlet assembly and the drain pipe 5 in the above structure facilitates the introduction of water from the bottom of the hot stuffy tank 1, facilitates full contact between water and steel slag, avoids the "umbrella effect" in the upper water pumping process, blocks the smaller steel slag at the bottom and makes it difficult to contact water, thereby reducing the presence of red slag in the later stage.

[0028] Embodiment 2

[0029] Combined with Figure 4 The hot stuffy tank 1 is connected with a ventilation pipe 6, and the cover 3 is connected with a monitoring component and an exhaust valve 4. The monitoring component includes a plurality of monitoring sensors 15. The monitoring sensors 15 can monitor the pressure and the concentration of the combustible gas. The monitoring sensors 15 are evenly distributed in an array around the cover 3.

[0030] The arrangement of the monitoring components, the ventilation pipe 6 and the exhaust valve 4 in the above structure facilitates real-time monitoring and adjustment of the gas concentration and pressure in the hot stuffy tank 1. In particular, in the later stage of hot stuffiness, non-combustible gas can be introduced through the ventilation pipe 6, and the non-combustible gas lifts the combustible gas and discharges it through the exhaust valve, thereby reducing the risk of combustible gas explosion during slag discharge.

[0031] The specific usage is as follows:

[0032] First, the steel slag is introduced into the hot stuffy tank 1, and the cover 3 is guided downward along the water seal groove 2 to achieve the match with the water seal groove 2, and then the threaded rod 8 is rotated with the hinge seat 7 as the axis and penetrated through the limit groove 10 to match, and then the locking nut 11 is threadedly connected with the threaded rod 8; finally, water is injected into the water seal groove 2 to achieve water sealing;

[0033] By starting the water pump 12, the input end of the water pump 12 introduces the water in the water tank into the hot stuffy tank 1 through the water inlet pipe 13. The high-temperature steel slag at the bottom encounters the water and its temperature drops sharply. During the rapid cooling process, the minerals in the slag undergo drastic phase changes, generating stress, causing the steel slag to crack. The steel slag is then soaked and stewed, thereby promoting the digestion reaction of the steel slag and avoiding the possibility that red slag still exists in the steel slag at the later stage of stewing. Since the temperature of the steel slag in the hot stuffy tank 1 is high, the water is heated and vaporized to form water vapor. The water vapor moves upward, and the free f-CaO and f-MgO in the top steel slag react and digest quickly with the water vapor, thereby achieving slag-iron separation. When drainage is required in the later stage, the water is introduced into the water tank through the drainage pipe 5 by opening the valve, and can be reused after being filtered by the filter plate 14, which is convenient for energy saving.

[0034] The monitoring sensor 15 can monitor the air pressure and the concentration of combustible gas in the hot stuffy tank 1 in real time, and facilitate the control and adjustment of the pressure in the hot stuffy tank 1 in cooperation with the exhaust valve 4; the setting of the ventilation pipe 6 facilitates the introduction of non-combustible gas in the later stage of hot stuffing, and then pushes out the gas in the hot stuffy tank 1 to avoid explosion accidents.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0037] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A hot stuffy tank for treating steel slag, comprising a hot stuffy tank (1), wherein a water seal groove (2) is circumferentially connected to the top of the hot stuffy tank (1), and a sealing cover (3) is detachably sealed on the water seal groove (2), characterized in that: A protective connection buckle is provided between the sealing cover (3) and the heat-stifling tank (1), a monitoring component and an exhaust valve (4) are connected to the sealing cover (3), a drainage pipe (5) is connected to the bottom end of the heat-stifling tank (1), and a water inlet component and a ventilation pipe (6) are connected to the heat-stifling tank (1).

2. A steel slag treatment hot pond according to claim 1, characterized in that: The protective connecting buckle comprises an articulated seat (7) connected to the circumference of the water seal groove (2), a threaded rod (8) is hingedly provided on the articulated seat (7), a fixing seat (9) is relatively connected to the cover (3), a limiting groove (10) is connected to the outer side of the fixing seat (9), the limiting groove (10) cooperates with the threaded rod (8), and the threaded rod (8) passes through the limiting groove (10) and is provided with a locking nut (11) through a threaded connection.

3. A steel slag treatment hot pond according to claim 2, characterized in that: The heat-stifling pot (1), the water-sealing groove (2) and the hinged seat (7) are integrally formed, and the fixing seat (9) and the sealing cover (3) are integrally formed.

4. A steel slag treatment hot pond according to claim 2, characterized in that: The inner side wall of the water seal groove (2) is arranged to be inclined inwards.

5. The steel slag treatment hot and stuffy tank according to claim 1, characterized in that: The water inlet assembly comprises a water tank, the top of the water tank is connected to a water pump (12), the input end of the water pump (12) passes through the water tank and extends to the bottom of the water tank, the output end of the water pump (12) is connected to a water inlet pipe (13), the other end of the water inlet pipe (13) is connected to the bottom of the hot stuffy tank (1), and the water inlet pipe (13) is evenly distributed in the circumferential direction of the bottom of the hot stuffy tank (1).

6. A steel slag treatment hot and stuffy tank according to claim 5, characterized in that: The other end of the drainage pipe (5) is connected to the top of the water tank. The drainage pipe (5) is provided with a valve. The water tank is provided with a filter plate (14) below the drainage pipe (5). The input end of the water pump (12) is provided through the filter plate (14).

7. The steel slag treatment hot pond according to claim 1, characterized in that: The monitoring component comprises a plurality of monitoring sensors (15), wherein the monitoring sensors (15) can monitor pressure and combustible gas concentration, and the monitoring sensors (15) are evenly distributed around the circumference of the array cover (3).

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