Self-drainage digestion box, steel slag hot disintegration device and steel slag hot disintegration digestion process

Abstract

The invention provides a self-drainage digestion box, a steel slag hot disintegration device and a steel slag hot disintegration digestion process, and relates to the technical field of steel slag treatment.The self-drainage digestion box comprises a supporting structure, a self-drainage box body and an elastic structure, and the supporting structure comprises an outer bottom plate; the self-drainage box body is arranged above the outer bottom plate in a lifting mode, a hollow drainage structure is arranged at the bottom of the self-drainage box body, and the self-drainage box body can be used for containing a slag groove; the elastic structure is arranged between the supporting structure and the self-drainage box body, the elastic structure can push the self-drainage box body to be separated from the outer bottom plate so as to open the hollow drainage structure, or the elastic structure can be compressed by the self-drainage box body and a slag groove containing preset steel slag so that the self-drainage box body can abut against the outer bottom plate so as to seal the hollow drainage structure. According to the invention, automatic drainage can be realized, a blocking barrier of large slag steel is broken through, deep penetration cooling and uniform digestion in the steel slag are realized, and the problems of non-uniform cooling, incomplete digestion and the like caused by material accumulation in a traditional hot disintegration process are solved.

Description

Technical Field

[0001] This invention relates to the field of steel slag treatment technology, and in particular to a self-draining digestion box, a steel slag hot quenching device, and a steel slag hot quenching digestion process. Background Technology

[0002] The efficient treatment and resource utilization of steel slag has become an important direction for the green and sustainable development of the steel industry. Among the current mainstream steel slag treatment technologies, pressurized hot quenching and atmospheric pressure hot quenching have become the most widely used methods due to their mature processes, low treatment costs, and good stabilization effects. This technology can be traced back to the first-generation steel slag hot quenching technology developed in 1992, mainly used for the treatment of converter steel slag. Its basic process involves pouring high-temperature liquid or semi-solid steel slag into a specially designed hot quenching tank, cooling it with water spray and sealing it to maintain pressure, and utilizing steam to react with unstable oxides in the steel slag through a hydration reaction, promoting their complete dissolution and thus achieving the stabilization of the steel slag. After more than 30 years of development and continuous optimization, this technology has undergone four generations of innovation: the first three generations mainly adopted a tank-type hot quenching process, while the fourth generation developed into a pressurized hot quenching technology with a higher degree of equipment and automation. Subsequently, the industry has developed an atmospheric pressure hot quenching technology with a similar process route but operating under atmospheric pressure conditions. Both technologies offer good economic benefits and high processing capacity, making them the mainstream methods for steel slag treatment. The hot quenching process is highly adaptable to the fluidity and alkalinity of hot steel slag, with a simple process flow and convenient operation and maintenance, and has been implemented on a large scale in several large steel plants. However, in actual production, existing hot quenching technologies still face significant technical bottlenecks: large slag-steel clumps easily form a covering layer after the high-temperature steel slag is poured into the slag tank, preventing the slag beneath from contacting the hot quenching water, hindering effective cooling and dissolution, and making it difficult to achieve the process objectives. Therefore, overcoming the obstacle of large slag-steel clumps to achieve deep penetration cooling and uniform dissolution of the steel slag has become an urgent technical problem to be solved. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a self-draining digestion box, a steel slag hot quenching device and a steel slag hot quenching digestion process, which are used to overcome the obstruction of large pieces of slag steel to achieve deep penetration cooling and uniform digestion inside the steel slag.

[0004] The above-mentioned objective of this invention can be achieved by the following technical solution: This invention provides a self-draining digestion tank, comprising: A supporting structure, the supporting structure including an outer base plate; The self-draining tank is vertically mounted above the outer bottom plate. The bottom of the self-draining tank has a hollow drainage structure and can be used to place a slag trough. An elastic structure is provided between the support structure and the self-draining tank. The elastic structure can push the self-draining tank away from the outer bottom plate to open the perforated drainage structure, or the elastic structure can be compressed by the self-draining tank and the slag trough containing preset steel slag to make the self-draining tank abut against the outer bottom plate to seal the perforated drainage structure.

[0005] In a preferred embodiment of the present invention, the self-draining digestion tank further includes a sealing structure disposed on the outer bottom plate. When the self-draining tank body and the outer bottom plate are in contact, the sealing structure can seal the gap between the self-draining tank body and the outer bottom plate.

[0006] In a preferred embodiment of the invention, the sealing structure includes a sealing gasket circumferentially disposed on the outer base plate.

[0007] In a preferred embodiment of the invention, the sealing gasket is detachably connected to the outer base plate.

[0008] In a preferred embodiment of the present invention, the self-draining tank includes an inner bottom plate and multiple side plates. The inner bottom plate is provided with the hollow drainage structure, and the multiple side plates are connected to each other and arranged around the inner bottom plate.

[0009] In a preferred embodiment of the present invention, the inner bottom plate includes a plurality of first plates connected end to end, the area sandwiched between the plurality of first plates is a hollow area, and the hollow drainage structure includes at least one second plate disposed in the hollow area and connected to the first plates.

[0010] In a preferred embodiment of the present invention, the second plate is a strip plate, and multiple second plates are provided, with the multiple second plates arranged at intervals.

[0011] In a preferred embodiment of the present invention, the elastic structure includes a plurality of elastic elements, which are arranged at intervals. One end of each elastic element is detachably connected to the self-draining tank, and the other end of each elastic element is detachably connected to the support structure.

[0012] In a preferred embodiment of the present invention, the elastic element is a spring, and the two ends of the spring are detachably connected to the self-draining tank and the support structure, respectively.

[0013] In a preferred embodiment of the present invention, the support structure further includes a support frame, and the base plate is disposed on the support frame.

[0014] In a preferred embodiment of the present invention, the outer base plate is rectangular, and the support frame includes multiple steel members, which are connected end to end to form a rectangular structure.

[0015] In a preferred embodiment of the present invention, the support structure further includes a plurality of base units for supporting the support frame, the plurality of base units being arranged at intervals, and the elastic element passing through the outer bottom plate and detachably connected to the base units.

[0016] The present invention also provides a steel slag hot quenching device, including a hot quenching chamber and the aforementioned self-draining digestion box disposed in the hot quenching chamber.

[0017] In a preferred embodiment of the present invention, the steel slag hot curing device is a hot curing box or a hot curing pot.

[0018] The present invention also provides a hot quenching digestion process for steel slag, which is implemented using the aforementioned hot quenching device for steel slag. The hot quenching digestion process for steel slag includes the following steps: Place the self-draining digestion box in the steel slag hot quenching device and fix it in place; The slag trough containing hot steel slag is placed in the self-draining digestion box. The compression elastic structure of the slag trough is used to make the self-draining box body abut against the outer bottom plate to seal the hollow drainage structure. Close the hot quenching chamber of the hot quenching device, start the water spraying system, and cool the steel slag in the slag tank by spraying water. After the sprayed water penetrates the steel slag, the unevaporated sprayed water flows from the bottom of the slag tank into the self-draining digestion box. Control the spraying time so that the water level in the self-draining digestion tank and the slag tank gradually rises synchronously until the preset water level is reached to soak the steel slag in the slag tank for digestion treatment; After the steel slag has been digested, the water pumping system is stopped, the hot quenching chamber of the hot quenching device is opened, the slag trough is lifted out, and the elastic structure is used to push the self-draining box body to separate from the outer bottom plate, thereby opening the hollow drainage structure for automatic drainage. Repeat the above steps to complete the process cycle.

[0019] The technical solution of the present invention has the following significant beneficial effects: The self-draining digestion box described in this invention achieves efficient infiltration cooling and automatic drainage of steel slag during the hot quenching process through the coordinated action of a liftable self-draining box and an elastic structure. In use, a slag trough containing hot steel slag is placed inside the self-draining box. Its weight compresses the box, causing it to move downwards and compress the elastic structure. This seals the perforated drainage structure at the bottom of the box with the outer bottom plate, creating a sealed water storage space. As sprayed water flows through the upper layer of steel slag in the trough into the self-draining digestion box, the water level gradually rises. The water then seeps back into the bottom of the trough and into internal gaps through a connecting mechanism, effectively overcoming cooling blind spots caused by large pieces of steel slag. This achieves a combined "immersion + spraying" cooling of the entire steel slag, significantly improving cooling uniformity and hydration digestion efficiency.

[0020] Furthermore, once the slag trough is lifted out, the gravity applied to the self-draining tank disappears, the elastic structure recovers its deformation, and pushes the self-draining tank back to its original position, allowing the hollow drainage structure at the bottom to reopen. The hot water accumulated inside the tank can then be discharged naturally without the need for an additional drainage pump or manual cleaning. This greatly simplifies the operation process, improves the continuity of equipment operation and operational safety, and reduces downtime for maintenance. It is suitable for high-intensity, multi-batch steel slag processing conditions.

[0021] The self-draining digestion box described in this invention not only solves the key technical problems of uneven cooling and incomplete digestion caused by material accumulation in the traditional hot quenching process, but also improves the automation level and resource utilization efficiency of the system through the integrated design of mechanical sealing and self-draining mechanism. Its structure is simple and reliable, and its maintenance cost is low. It has good industrial applicability and promotion value, and is particularly suitable for the optimization and upgrading of large-scale steel slag hot quenching treatment systems in the metallurgical industry. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0024] Figure 1 This is a side sectional view of one embodiment of the self-draining digestion tank described in this invention; Figure 2 This is a top view of one embodiment of the self-draining digestion tank described in this invention; Figure 3 This is a schematic diagram of the installation structure of one embodiment of the elastic structure described in this invention; Figure 4 This is a schematic diagram of the self-draining digestion tank of the present invention in a sealed state.

[0025] The reference numerals in the above figures are as follows: 10. Self-draining digestion tank; 20. Slag trough; 30. Hot and stuffy cavity; 100. Supporting structure; 110. Outer base plate; 120. Supporting frame; 130. Foundation unit; 200. Self-draining tank body; 210. Inner bottom plate; 211. First plate; 220. Side plate; 230. Hollowed-out drainage structure; 231. Second plate; 300. Elastic structure; 310. Elastic component; 400. Sealing structure; 410. Sealing gasket. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Implementation Method 1

[0028] Please refer to the following: Figures 1 to 4 As shown, an embodiment of the present invention provides a self-draining digestion box 10, which includes a support structure 100, a self-draining box body 200, and an elastic structure 300. The support structure 100 includes an outer bottom plate 110. The self-draining box body 200 is movably disposed above the outer bottom plate 110. The bottom of the self-draining box body 200 is provided with a hollow drainage structure 230. The self-draining box body 200 can be used to place the slag trough 20. The elastic structure 300 is disposed between the support structure 100 and the self-draining box body 200. The elastic structure 300 can push the self-draining box body 200 away from the outer bottom plate 110 to open the hollow drainage structure 230, or the elastic structure 300 can be compressed by the self-draining box body 200 and the slag trough 20 containing the preset steel slag so that the self-draining box body 200 abuts against the outer bottom plate 110 to seal the hollow drainage structure 230.

[0029] Overall, such as Figure 1 and Figure 4 In the illustrated embodiment, the self-draining digestion tank 10 achieves efficient infiltration cooling and automatic drainage of steel slag during the hot quenching process through the coordinated action of a liftable self-draining tank body 200 and an elastic structure 300. In use, the slag trough 20 containing hot steel slag is placed inside the self-draining tank body 200. Its weight compresses the self-draining tank body 200 downwards, thereby compressing the elastic structure 300. This causes the perforated drainage structure 230 at the bottom of the self-draining tank body 200 to be sealed by the outer bottom plate 110, thus forming a sealed water storage space.

[0030] When the sprayed water passes through the upper layer of steel slag in the slag trough 20 and flows into the self-draining digestion tank 10, the water level in the self-draining digestion tank 10 will gradually rise. The water seeps back into the bottom of the slag trough 20 and the internal gaps through the connection, effectively overcoming the cooling blind zone caused by the large pieces of slag steel blocking the cooling, realizing the overall "immersion + spraying" composite cooling of the steel slag, and significantly improving the cooling uniformity and hydration digestion efficiency.

[0031] After the slag trough 20 is lifted out, as Figure 1 In the illustrated embodiment, the gravity applied to the self-draining tank 200 disappears, the elastic structure 300 recovers its deformation, and pushes the self-draining tank 200 back to its original position, causing the hollow drainage structure 230 at its bottom to reopen. The hot water accumulated in the self-draining tank 200 can be discharged naturally without the need for an additional drainage pump or manual cleaning. This greatly simplifies the operation process, improves the continuity of equipment operation and operational safety, and reduces downtime maintenance time. It is suitable for high-intensity, multi-batch steel slag processing conditions.

[0032] The self-draining digestion tank 10 of the present invention not only solves the key technical problems such as uneven cooling and incomplete digestion caused by material accumulation in the traditional hot quenching process, but also improves the automation level and resource utilization efficiency of the system through the integrated design of mechanical sealing and self-draining mechanism. Its structure is simple and reliable, and the maintenance cost is low. It has good industrial applicability and promotion value, and is particularly suitable for the optimization and upgrading of large-scale steel slag hot quenching treatment systems in the metallurgical industry.

[0033] The self-draining digestion box 10 can be used for digestion of steel slag, and can also be used for other metallurgical slags that are stabilized by hot quenching to improve digestion efficiency.

[0034] In embodiments of the present invention, such as Figure 1 and Figure 3 In the embodiment shown, the self-draining digestion tank 10 also includes a sealing structure 400 disposed on the outer bottom plate 110. When the self-draining tank body 200 and the outer bottom plate 110 are in contact, the sealing structure 400 can seal the gap between the self-draining tank body 200 and the outer bottom plate 110.

[0035] In one specific embodiment, the sealing structure 400 includes a sealing gasket 410 circumferentially disposed on the outer bottom plate 110. When the weight of the slag tank 20 and the hot steel slag inside it presses down on the self-draining tank 200, the sealing gasket 410 is compressed and undergoes elastic deformation, thereby tightly filling the gap between the self-draining tank 200 and the outer bottom plate 110, significantly improving the sealing reliability of the self-draining digestion tank 10 in the water storage state.

[0036] Furthermore, the sealing gasket 410 is detachably connected to the outer base plate 110. Under prolonged high temperature, high humidity, and frequent mechanical compression working environments, the sealing gasket 410 is prone to aging or wear. The detachable design allows for quick replacement of the sealing gasket 410 when damaged or experiencing performance degradation, eliminating the need to replace the entire outer base plate 110 and improving maintenance efficiency. For example, the sealing gasket 410 can be detachably connected to the outer base plate 110 via a connector, or the sealing gasket 410 can be detachably snapped into a groove on the outer base plate 110.

[0037] In embodiments of the present invention, such as Figure 1 In the embodiment shown, the self-draining tank 200 includes an inner bottom plate 210 and multiple side plates 220. The inner bottom plate 210 is provided with a hollow drainage structure 230, and the multiple side plates 220 are connected to each other and arranged around the inner bottom plate 210.

[0038] Multiple side panels 220 are interconnected and surround the inner bottom plate 210 to form an enclosure structure, forming a box-shaped space with an open top, which can be used to carry the slag trough 20 and accommodate spray water.

[0039] Designers can adjust the overall shape and structure of the self-draining tank 200 according to usage needs, and no specific limitations are imposed here. In one feasible embodiment, the self-draining tank 200 is formed into a cuboid shape by the cooperation of multiple side plates 220 and inner bottom plate 210.

[0040] In embodiments of the present invention, such as Figure 2 In the embodiment shown, the inner bottom plate 210 includes multiple first plates 211 connected end to end, and the area sandwiched between the multiple first plates 211 is a hollow area. The hollow drainage structure 230 includes at least one second plate 231 disposed in the hollow area and connected to the first plates 211.

[0041] Multiple first plates 211 connected end to end can form a U-shape, providing support and quickly creating a hollow area. Furthermore, by placing second plates 231 in the hollow area, they can provide support, thereby effectively distributing gravity and improving structural stability.

[0042] In one feasible embodiment, the second plate 231 is a strip plate, and multiple second plates 231 are provided, arranged at intervals. By cooperating with multiple second plates 231, sufficient support area is ensured, and the distributed arrangement of the hollow area is realized, thus ensuring drainage effect.

[0043] In embodiments of the present invention, such as Figure 1 and Figure 3 In the embodiment shown, the elastic structure 300 includes a plurality of elastic elements 310, which are arranged at intervals. One end of the elastic element 310 is detachably connected to the self-draining tank 200, and the other end of the elastic element 310 is detachably connected to the support structure 100.

[0044] By incorporating multiple elastic elements 310 as the elastic structure 300, the spaced arrangement of these elements ensures a more uniform force distribution. This effectively absorbs alternating loads caused by drastic temperature changes, material impacts, or mechanical vibrations during the hot quenching process of steel slag, preventing structural fatigue damage due to localized stress concentration and thus extending the overall service life of the equipment. Furthermore, the spaced arrangement enhances the self-balancing ability of the elastic structure 300 under asymmetrical or eccentric loading conditions, ensuring the stability of the self-draining tank 200 during lifting and lowering movements, preventing jamming or tilting, and guaranteeing reliable sealing of the sealing surface.

[0045] Designers can adjust the specific type and quantity of the elastic element 310 according to usage needs, and no specific limitations are imposed here. Preferably, the elastic element 310 is a spring, and the two ends of the spring are detachably connected to the self-draining tank 200 and the support structure 100, respectively. More preferably, the quantity of the elastic element 310 is not less than 4.

[0046] In embodiments of the present invention, such as Figure 1 In the illustrated embodiment, the support structure 100 further includes a support frame 120, with a base plate disposed on the support frame 120. Through the synergistic effect of the support frame 120 and the outer base plate 110, a stable sealing support surface can be formed when the self-draining tank 200 descends, ensuring sealing reliability.

[0047] In one specific embodiment, the outer base plate 110 is rectangular, and the support frame 120 includes multiple steel components connected end to end to form a rectangular structure. By connecting the multiple steel components end to end to form a rectangular structure, it can be adapted to the rectangular outer base plate 110, thereby forming a stable and high-strength load-bearing foundation, while also taking into account the convenience of manufacturing, installation, disassembly, and maintenance.

[0048] Furthermore, such as Figure 1In the embodiment shown, the support structure 100 further includes a plurality of base units 130 for supporting the support frame 120. The plurality of base units 130 are arranged at intervals, and the elastic element 310 passes through the outer bottom plate 110 and is detachably connected to the base units 130.

[0049] By setting multiple spaced base units 130 as supports, and detachably connecting the elastic element 310 through the outer base plate 110 to the base unit 130, a reliable support base can be provided for the elastic element 310, which plays the role of equipment support and fixation, and ensures the smooth operation of the elastic structure 300.

[0050] Designers can adjust the specific structure of the foundation unit 130 according to usage needs, without specific restrictions. For example, the foundation unit 130 can be a pile structure with a rectangular cross-section. Furthermore, the foundation unit 130 can be flexibly selected according to installation needs, such as being set as a concrete component or a steel composite component, enhancing its adaptability to different installation environments.

[0051] Implementation Method 2

[0052] Please refer to the following: Figure 4 As shown, an embodiment of the present invention also provides a steel slag hot quenching device, which includes a hot quenching chamber 30 and a self-draining digestion tank 10 as described in Embodiment 1, disposed within the hot quenching chamber 30. The structure and effect of the self-draining digestion tank 10 are the same as those described in Embodiment 1, and will not be repeated here.

[0053] Designers can adjust the specific structure of the steel slag hot-quenching device according to usage requirements, and no specific limitations are imposed here. In one feasible embodiment, the steel slag hot-quenching device is a hot-quenching box. In another feasible embodiment, the steel slag hot-quenching device is a hot-quenching tank.

[0054] Implementation Method 3

[0055] An embodiment of the present invention also provides a hot quenching digestion process for steel slag, implemented using the hot quenching device for steel slag described in Embodiment 2. The hot quenching digestion process for steel slag includes the following steps: Step S1: Place the self-draining digestion box 10 in the steel slag hot quenching device and fix it in place; Step S2: Place the slag trough 20 containing hot steel slag into the self-draining digestion box 10, and use the slag trough 20 to compress the elastic structure 300 so that the self-draining box body 200 abuts against the outer bottom plate 110 to seal the hollow drainage structure 230. Step S3: Close the hot quenching chamber 30 of the hot quenching device, start the water spraying system, and cool the steel slag in the slag tank 20 by spraying water. After the spraying water penetrates the steel slag, the unevaporated spraying water flows from the bottom of the slag tank 20 into the self-draining digestion box 10. Step S4: Control the spraying time so that the water level in the self-draining digestion tank 10 and the slag tank 20 gradually rises synchronously until the preset water level is reached to soak the steel slag in the slag tank 20 for digestion treatment. Step S5: After the steel slag has been slaked, stop the water pumping system, open the hot quenching chamber 30 of the hot quenching device, lift out the slag trough 20, and use the elastic structure 300 to push the self-draining box 200 to separate from the outer bottom plate 110, thereby opening the hollow drainage structure 230 for automatic drainage. Step S6: Repeat steps S1-S5 above to complete the process cycle.

[0056] Specifically, the self-draining digestion box 10 is placed in the heat-sealing box (tank) and fixed in place.

[0057] The slag trough 20 containing hot steel slag is placed in the self-draining digestion box 10. The base of the slag trough 20 rests on the inner bottom plate 210 of the self-draining digestion box 10. Under the gravity of the slag trough 20, the elastic element 310 connected to the inner bottom plate 210 is compressed, and the inner bottom plate 210 rests on the outer bottom plate 110. At the same time, the sealing gasket 410 between the inner bottom plate 210 and the outer bottom plate 110 is squeezed, so that the side plate 220, the inner bottom plate 210, the sealing gasket 410, and the outer bottom plate 110 form a sealed groove with an open top.

[0058] Close the lid of the hot quenching box (tank), start the water spraying system, and spray water through the steel slag in the slag trough 20. The unevaporated part flows from the bottom of the slag trough 20 into the self-draining digestion box 10.

[0059] As the hot simmering and water-spraying process continues, the water level in the self-draining digestion tank 10 rises. Since the slag trough 20 is connected to the self-draining digestion tank 10, the water level inside the slag trough 20 also rises synchronously, causing the steel slag in the slag trough 20 to be in a "water-soaked" state. The water can penetrate into the gaps in the steel slag that the spray water does not reach, thereby improving the digestion rate.

[0060] After the digestion process is completed, the water pumping system is turned off, the hot sealing box (tank) is opened, and the slag trough 20 is lifted off. Due to the elimination of gravity, the elastic element 310 rebounds and resets, lifting the inner bottom plate 210 and the side plate 220 together. The inner bottom plate 210 is separated from the outer bottom plate 110, and the water in the self-draining digestion tank 10 is discharged from between the inner bottom plate 210 and the outer bottom plate 110. Repeat the above steps to complete the process cycle.

[0061] The self-draining digestion box 10 has applications including, but not limited to, the digestion of steel slag. Other metallurgical slags that are stabilized by hot quenching can also use the equipment of this invention to improve digestion efficiency.

[0062] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A self-draining digestion tank, characterized in that, include: A supporting structure, the supporting structure including an outer base plate; The self-draining tank is vertically mounted above the outer bottom plate. The bottom of the self-draining tank has a hollow drainage structure and can be used to place a slag trough. An elastic structure is provided between the support structure and the self-draining tank. The elastic structure can push the self-draining tank away from the outer bottom plate to open the perforated drainage structure, or the elastic structure can be compressed by the self-draining tank and the slag trough containing preset steel slag to make the self-draining tank abut against the outer bottom plate to seal the perforated drainage structure.

2. The self-draining digestion tank as described in claim 1, characterized in that, The self-draining digestion tank also includes a sealing structure disposed on the outer bottom plate. When the self-draining tank body and the outer bottom plate are in contact, the sealing structure can seal the gap between the self-draining tank body and the outer bottom plate.

3. The self-draining digestion tank as described in claim 2, characterized in that, The sealing structure includes a sealing gasket circumferentially disposed on the outer base plate.

4. The self-draining digestion tank as described in claim 3, characterized in that, The sealing gasket is detachably connected to the outer base plate.

5. The self-draining digestion tank as described in claim 1, characterized in that, The self-draining tank includes an inner bottom plate and multiple side plates. The inner bottom plate is provided with the hollow drainage structure, and the multiple side plates are connected to each other and arranged around the inner bottom plate.

6. The self-draining digestion tank as described in claim 5, characterized in that, The inner bottom plate includes multiple first plates connected end to end, and the area sandwiched between the multiple first plates is a hollow area. The hollow drainage structure includes at least one second plate disposed in the hollow area and connected to the first plates.

7. The self-draining digestion tank as described in claim 6, characterized in that, The second plate is a strip plate, and multiple second plates are provided, with the multiple second plates arranged at intervals.

8. The self-draining digestion tank as described in claim 1, characterized in that, The elastic structure includes multiple elastic elements arranged at intervals. One end of each elastic element is detachably connected to the self-draining tank, and the other end of each elastic element is detachably connected to the support structure.

9. The self-draining digestion tank as described in claim 8, characterized in that, The elastic element is a spring, and the two ends of the spring are detachably connected to the self-draining tank and the supporting structure, respectively.

10. The self-draining digestion tank as described in claim 8, characterized in that, The support structure also includes a support frame, and the base plate is disposed on the support frame.

11. The self-draining digestion tank as described in claim 10, characterized in that, The outer base plate is rectangular, and the support frame includes multiple steel components, which are connected end to end to form a rectangular structure.

12. The self-draining digestion tank as described in claim 10, characterized in that, The support structure also includes multiple base units for supporting the support frame. The multiple base units are arranged at intervals, and the elastic element passes through the outer bottom plate and is detachably connected to the base units.

13. A steel slag hot quenching device, characterized in that, It includes a heat-sealing chamber and a self-draining digestion tank as described in any one of claims 1 to 12, disposed within the heat-sealing chamber.

14. The steel slag hot quenching device as described in claim 13, characterized in that, The steel slag hot curing device is a hot curing box or a hot curing tank.

15. A hot quenching digestion process for steel slag, characterized in that, The steel slag hot quenching device as described in claim 13 is used to achieve the process, which includes the following steps: Place the self-draining digestion box in the steel slag hot quenching device and fix it in place; The slag trough containing hot steel slag is placed in the self-draining digestion box. The compression elastic structure of the slag trough is used to make the self-draining box body abut against the outer bottom plate to seal the hollow drainage structure. Close the hot quenching chamber of the hot quenching device, start the water spraying system, and cool the steel slag in the slag tank by spraying water. After the sprayed water penetrates the steel slag, the unevaporated sprayed water flows from the bottom of the slag tank into the self-draining digestion box. Control the spraying time so that the water level in the self-draining digestion tank and the slag tank gradually rises synchronously until the preset water level is reached to soak the steel slag in the slag tank for digestion treatment; After the steel slag has been digested, the water pumping system is stopped, the hot quenching chamber of the hot quenching device is opened, the slag trough is lifted out, and the elastic structure is used to push the self-draining box body to separate from the outer bottom plate, thereby opening the hollow drainage structure for automatic drainage. Repeat the above steps to complete the process cycle.

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