Transferring device for hot disintegration of steel slag
The high-temperature resistant material-based transfer device solves the problem of wear and tear on machinery caused by high-temperature steel slag, achieves continuity and high efficiency in the hot quenching process of steel slag, and ensures the stability and service life of the equipment.
Patent Information
- Application Number
- CN202520286268.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the current hot quenching process of steel slag, the high temperature of the steel slag causes wear and deformation to the machinery, resulting in equipment damage and affecting production continuity and efficiency.
The transfer device, consisting of a transfer container, lifting trunnions, tilting lugs, reinforcing rings, and support columns, made of high-temperature resistant materials, is used to hold and lift high-temperature steel slag, avoiding direct contact with machinery and ensuring equipment stability and continuity.
The use of high-temperature resistant materials avoids wear and deformation of machinery, ensures the continuity and efficiency of the steel slag hot quenching process, and improves the service life and stability of the equipment.
Smart Images
Figure CN223837452U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel slag hot quenching technology, and in particular to a transfer device for steel slag hot quenching. Background Technology
[0002] Steel slag is a byproduct of the steelmaking process. It consists of various oxides formed by the oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during smelting, as well as salts formed by the reaction of these oxides with the solvent. Steel slag contains several useful components: 2%–8% metallic iron, 40%–60% calcium oxide, 3%–10% magnesium oxide, and 1%–8% manganese oxide, thus it can be used as a raw material in iron and steel metallurgy.
[0003] However, the utilization rate of steel slag is low, only 20% to 30% of the total steel slag production, resulting in large-scale waste, occupying significant amounts of land, and causing environmental pollution. Steel slag treatment methods mainly include hot pouring, hot quenching, shallow pan treatment, water quenching, air quenching, granulation, and drum treatment. Compared with other steel slag treatment methods, hot quenching has a wide range of applications and advantages such as good stability, high pulverization rate, and thorough slag-iron separation after hot quenching. Its products can be directly applied to steel slag cement, sintering, road paving, infrastructure, desulfurization agents, and land improvement, achieving zero steel slag discharge. It is currently the most advanced steel slag treatment technology. Specifically, hot quenching involves pouring the hot steel slag into a hot quenching tank after the molten slag has naturally cooled to 300–800℃, sealing the tank, and intermittently spraying water on the slag after it has been uniformly heated for half an hour. The thermal stress generated by rapid cooling causes the steel slag to crack and break. At the same time, a large amount of saturated steam penetrates into the slag and reacts with free calcium oxide and free magnesium oxide to increase the local volume of the steel slag, thereby causing it to self-decompose and pulverize. This process is suitable for treating steel slag with an average temperature greater than 300℃. It has a short processing time (10-12h), a high pulverization rate (up to 85% for particles with a diameter of less than 20mm), good slag-iron separation, stable slag properties, and a free calcium oxide and free magnesium oxide content of less than 2%.
[0004] Currently, steel slag is often transported using machinery (such as buckets) during the hot quenching process. However, the temperature of the steel slag is approximately 1600℃. During the transport process, the high-temperature steel slag flows within the machinery, causing wear and tear on the buckets and potentially leading to deformation. Therefore, there is an urgent need for a new steel slag hot quenching transport device. Utility Model Content
[0005] This application provides a slag hot quenching transfer device to solve the technical problems described in the background above.
[0006] To solve the above-mentioned technical problems, this application adopts the following technical approach:
[0007] This application provides a conveying device for hot quenching of steel slag, comprising:
[0008] A transshipment container, which is made of high-temperature resistant material and is used to hold steel slag, has an open top and a drainage hole at the bottom;
[0009] Two lifting trunnions are respectively installed on the side wall of the upper section of the transport container. The central axes of the two lifting trunnions are located on the same straight line and are perpendicular to the central axis of the transport container, for use by overhead crane for hoisting.
[0010] Optionally, the transport container is provided with two tilting lugs that are symmetrical about the central axis of the transport container on its side wall near the bottom. The two tilting lugs are used to engage with the auxiliary hook of the overhead crane.
[0011] Optionally, a reinforcing ring is fitted onto the outer peripheral wall of the transport container.
[0012] Optionally, a support column is provided at the center of the bottom of the transport container, and a support base is provided at the bottom end of the support column;
[0013] The height of the support column is 2cm to 3cm.
[0014] Optionally, the reinforcing ring, the support column, and the support base are all made of high-temperature resistant materials.
[0015] Optionally, the transport container has an inverted isosceles trapezoidal structure.
[0016] Optionally, there are multiple drainage holes, which are evenly distributed on the bottom surface of the transport container.
[0017] Optionally, an outer flange is provided on the outer peripheral wall of the top of the transport container.
[0018] The steel slag hot-quenching transfer device provided in this application uses a transfer container made of high-temperature resistant material to hold steel slag. A crane suspends the container on two lifting trunnions, and the container is placed into the hot-quenching tank. After hot-quenching, the container is lifted again by the crane, and after the cooling water used to cool the steel slag has completely drained from the drain hole, the hot-quenched steel slag is poured into the slag slab. Because the hot-quenching and transfer processes all use a high-temperature resistant container instead of machinery, wear and deformation of the machinery caused by the steel slag are avoided, eliminating the need for maintenance and replacement of machinery. This ensures continuous hot-quenching and improves efficiency. Furthermore, the central axes of the two lifting trunnions are aligned and perpendicular to the central axis of the transfer container, ensuring stability during the crane's lifting of the container. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a steel slag hot quenching transport device provided in an embodiment of this application;
[0021] Figure 2 This is a schematic diagram of the structure of a steel slag hot quenching transport device provided in another embodiment of this application;
[0022] Figure 3 This is a schematic diagram of the structure of a steel slag hot quenching transport device provided in another embodiment of this application;
[0023] Figure 4 Provided for an embodiment of this application Figure 1 Front view of the conveying device for hot quenching of steel slag.
[0024] In the diagram: 100, transport container; 101, drain hole; 102, tilting lug; 103, outer flange; 200, hoisting trunnion; 300, reinforcing ring; 400, support column; 401, support base. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0026] refer to Figures 1 to 4 This application provides a conveying device for hot quenching of steel slag, comprising:
[0027] The transshipment container 100 is made of a high-temperature resistant material and is used to contain steel slag. The top of the transshipment container 100 is open, and a drainage hole 101 is provided at the bottom. Since the temperature of the steel slag is around 1600℃, the transshipment container 100 is made of a high-temperature resistant material to ensure its service life. High-temperature resistant materials include refractory materials and heat-resistant materials, including inorganic compound materials and polymer materials. The transshipment container 100 in this application is made of an inorganic compound material, which is mainly divided into two categories: metallic and non-metallic compounds. The transport container 100 in this application is made of a metallic material from the inorganic compound material in the high-temperature resistant material category. The metal can be refractory metals such as tungsten, molybdenum, tantalum, niobium, vanadium, chromium, titanium, zirconium, as well as rare earth metals such as borides, carbides, nitrides, silicides, phosphides, and sulfides. The specific material of the high-temperature resistant material can be set according to actual needs. Therefore, this application does not make specific limitations on it.
[0028] Two lifting trunnions 200 are respectively installed on the side wall of the upper section of the transfer container 100. The central axes of the two lifting trunnions 200 are on the same straight line and perpendicular to the central axis of the transfer container 100, for use by overhead crane hoisting. Because the central axes of the two lifting trunnions 200 are on the same straight line and perpendicular to the central axis of the transfer container 100, the transfer container 100 is in a balanced state when the lifting trunnions 200 are hoisted by the overhead crane, which improves the stability of the transfer container 100 during hoisting and prevents the steel slag inside the transfer container 100 from spilling out.
[0029] The steel slag hot quenching transfer device provided in this application uses a transfer container 100 made of high-temperature resistant material to hold steel slag. The container 100 is then suspended from two lifting trunnions 200 by an overhead crane and placed into the hot quenching pool. After the hot quenching is completed, the container 100 is lifted from the two lifting trunnions 200 by the overhead crane. After the cooling water used to cool the steel slag in the container 100 has completely flowed out from the drain hole 101, the hot quenched steel slag in the container 100 is poured into the slag slab. Since the steel slag hot quenching and transfer processes all use a transfer container 100 made of high-temperature resistant material instead of machinery, the steel slag avoids wear and deformation of the machinery, eliminating the need for maintenance and replacement of machinery. This ensures that the steel slag hot quenching process can be carried out continuously and improves the efficiency of steel slag hot quenching. In addition, the central axes of the two hoisting trunnions 200 are on the same straight line and are perpendicular to the central axis of the transport container 100, which ensures the stability of the overhead crane hoisting the transport container 100.
[0030] In some embodiments, reference Figure 1 , Figure 3 and Figure 4In this application, the transfer container 100 has two tilting lugs 102 symmetrically arranged about the central axis of the container 100 on its side wall near the bottom. The two tilting lugs 102 are used to engage with the auxiliary hook of the overhead crane. The tilting lugs 102 facilitate the tilting of the transfer container 100, allowing the hot-quenched steel slag to be quickly poured from the transfer container 100 into the slag bay.
[0031] In the above embodiment, when the auxiliary hook of the overhead crane is engaged with the tilting lug 102, the overhead crane pulls the auxiliary hook to tilt the transport container 100, thereby allowing the hot-quenched steel slag inside the transport container 100 to be poured out onto the slag bridge, thus improving the dumping efficiency of the hot-quenched steel slag inside the transport container 100.
[0032] In some embodiments, reference Figures 1 to 4 In this application, a reinforcing ring 300 is fitted onto the outer peripheral wall of the transfer container 100. The inner wall of the reinforcing ring 300 abuts against the outer peripheral wall of the transfer container 100, thereby reinforcing the container 100 and preventing cracks from appearing on its outer peripheral wall under the influence of high-temperature steel slag. This improves the service life of the transfer container 100 and the stability of the connections between the side walls. Furthermore, the reinforcing ring 300 can be connected to the outer peripheral wall of the transfer container 100 by welding or other methods. The specific connection method can be set according to actual needs; therefore, this application does not impose specific limitations on it.
[0033] In some embodiments, reference Figure 1 , Figure 3 and Figure 4 In this application, a support column 400 is provided at the center of the outer bottom of the transport container 100, and a support seat 401 is provided at the bottom end of the support column 400. The function of the support column 400 is to ensure that there is a certain distance between the bottom of the transport container 100 and the inner bottom of the hot quenching tank, so that the cooling water after cooling the steel slag in the transport container 100 can quickly flow out from the drain hole 101 at the bottom of the transport container 100. The bottom of the hot quenching tank has a water outlet, that is, the water flowing out from the transport container 100 into the hot quenching tank is discharged through the water outlet at the inner bottom of the hot quenching tank. The support seat 401 increases the contact area between the bottom end of the support column 400 and the hot quenching tank, so that the transport container 100 can be stably placed on the inner bottom surface of the hot quenching tank by the support column 400 and the support seat 401 at the bottom end of the support column 400.
[0034] Specifically, the height of the support column 400 is 2cm to 3cm. This height provides a certain distance between the bottom surface of the transfer container 100 and the hot quenching pool, so that there is a certain space between the bottom of the transfer container 100 and the hot quenching pool for the water in the transfer container 100 that has cooled the steel slag to flow into the hot quenching pool. The specific value of the height of the support column 400 can be set according to actual needs. Therefore, this application does not make a specific limitation on it.
[0035] In some embodiments, the reinforcing ring 300, support column 400, and support base 401 in this application are all made of high-temperature resistant materials. Since the temperature of steel slag is approximately 1600°C, and the reinforcing ring 300, support column 400, and support base 401 are all in indirect contact with the steel slag, using high-temperature resistant materials to manufacture the reinforcing ring 300, support column 400, and support base 401 ensures their stability and extends their service life.
[0036] In addition, the reinforcing ring 300, the support column 400, and the support base 401 can be made of metals from inorganic compound materials in high-temperature resistant materials (such as refractory metals like tungsten, molybdenum, tantalum, niobium, vanadium, chromium, titanium, zirconium, and rare earth metals such as borides, carbides, nitrides, silicides, phosphides, and sulfides). The specific materials of the reinforcing ring 300, the support column 400, and the support base 401 can be set according to actual needs. Therefore, this application does not impose specific limitations on them.
[0037] In some embodiments, reference Figure 1 , Figure 3 and Figure 4 The transport container 100 in this application has an inverted isosceles trapezoidal structure. This inverted trapezoidal structure allows the transport container 100 to fill the gap between the lower section near its bottom and the hot-quenching pool when steel slag flows out of the transport container 100 from the drain hole 101 and settles in the hot-quenching pool. This facilitates the removal of the hot-quenched transport container 100 from the hot-quenching pool, ensuring the normal operation of the hot-quenching process.
[0038] In some embodiments, reference Figure 2 and Figure 3This application includes multiple drainage holes 101, which are evenly distributed on the bottom surface of the transfer container 100. These drainage holes allow cooling water that has cooled the slag inside the transfer container 100 to flow out quickly. The specific number of drainage holes 101 can be set according to actual needs, and therefore, this application does not impose a specific limitation on it. Furthermore, the diameter of the drainage holes 101 is sufficient to allow the cooling water to pass through while preventing the slag from flowing out of the transfer container 100. The specific diameter of the drainage holes 101 can be set according to actual needs, and this application does not impose a specific limitation on it.
[0039] In some embodiments, reference Figures 1 to 4 The transfer container 100 in this application has an outer flange 103 on its outer peripheral wall at the top. The outer flange 103 can be integrally formed with the outer peripheral wall at the top of the transfer container 100 or connected by welding, depending on actual needs; this application does not impose specific limitations on it. The outer flange 103 enhances the structural strength of the transfer container 100, ensuring its safety and stability when containing steel slag.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A conveying device for hot quenching of steel slag, characterized in that, include: A transport container (100) is made of high-temperature resistant material and is used to hold steel slag. The top of the transport container (100) is an open structure and a drainage hole (101) is provided at the bottom. Two lifting trunnions (200) are respectively disposed on the side wall of the upper section of the transport container (100). The central axes of the two lifting trunnions (200) are located on the same straight line and are perpendicular to the central axis of the transport container (100) for use by overhead crane for hoisting.
2. The steel slag hot quenching transfer device according to claim 1, characterized in that, The transport container (100) has two tilting lugs (102) that are symmetrical about each other about the central axis of the transport container (100) on its side wall near the bottom. The two tilting lugs (102) are used to hook with the auxiliary hook of the crane.
3. The steel slag hot quenching transfer device according to claim 1, characterized in that, A reinforcing ring (300) is fitted on the outer peripheral wall of the transport container (100).
4. The steel slag hot quenching transfer device according to claim 3, characterized in that, A support column (400) is provided at the center of the bottom of the transport container (100), and a support base (401) is provided at the bottom end of the support column (400). The height of the support column (400) is 2cm to 3cm.
5. The steel slag hot quenching transfer device according to claim 4, characterized in that, The reinforcing ring (300), the support column (400), and the support base (401) are all made of high-temperature resistant materials.
6. The steel slag hot quenching transfer device according to claim 1, characterized in that, The transport container (100) has an inverted isosceles trapezoidal structure.
7. The steel slag hot quenching conveying device according to claim 1, characterized in that, There are multiple drainage holes (101), and the multiple drainage holes (101) are evenly distributed on the bottom surface of the transport container (100).
8. The steel slag hot quenching transfer device according to any one of claims 1 to 7, characterized in that, An outer flange (103) is provided on the outer peripheral wall of the top of the transport container (100).