Steel-making molten steel slag reduction ironmaking equipment
By using thermal plates and iron smelting components in molten steel slag reduction iron slurry equipment, the upper and lower layers of steel slag in the slag tank are reduced, which solves the problem that existing equipment can only reduce the top of the slag tank, and improves the reduction effect of steel slag.
Patent Information
- Application Number
- CN202420782098.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-16
AI Technical Summary
When used, existing molten steel slag reduction and ironmaking equipment can only reduce the molten steel slag on the top of the slag tank, resulting in the failure to effectively reduce the molten steel slag at the bottom of the slag tank, resulting in poor reduction effect of the steel slag.
A device including a base, support assembly, iron smelting assembly and air vent assembly was designed. The molten steel slag in the slag tank was divided into two sides through a thermal conduction plate, and the material suction pump, air suction pump, and reduction in the iron smelting assembly was used. The main pipe, air conduit pipe and shunt pipe reduce the upper and lower layers of steel slag in the slag tank to ensure that the steel slag at the bottom of the slag tank can also be effectively reduced.
Through the thermal conductivity of the thermal conduction plate and the design of the iron-making components, the effective reduction of the upper and lower layers of steel slag in the slag tank is achieved, the reduction effect of steel slag is improved, and the problem of failure to effectively reduce the bottom of the slag tank is solved.
Smart Images
Figure CN222226419U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molten steel slag reduction ironmaking, in particular to a steelmaking molten steel slag reduction ironmaking device. Background Art
[0002] Currently, most of the molten slag coming out of the steel mill is first cooled naturally in the cast steel slag pot, and then cooled by pouring water on the slag, sprinkling water on the slag pit, sprinkling water on the slag pot, or sprinkling water on the hot press, and then it is crushed and a small amount of steel beans are magnetically separated and pulled out of the steel mill for other common uses or discarded.
[0003] The existing announcement number CN216005917U discloses a molten steel slag reduction ironmaking equipment; it includes a slag pot, a stirring rod, a spray gun, and an equipment platform. The bottom surface of the equipment platform is provided with a pipe mouth that is seamlessly connected to the pot mouth of the slag pot, and the bottom of the pipe is covered with a high-temperature resistant protective pipe of high-temperature resistant material; the stirring rod and the spray gun are each suspended under an independent lifting mechanism and pass through the equipment platform and the high-temperature resistant protective pipe. The stirring rod moves up and down to re-stir the steel slag, and the spray gun penetrates into the steel slag to spray the composite agent to each layer; the slag pot is transported to the bottom of the equipment platform by a transport vehicle and connected to the high-temperature resistant protective pipe. The equipment does not require an external heat source, and uses the sensible heat of steelmaking molten slag to add a reducing agent for melting and reduction ironmaking, and uses the combustion heat of the by-product CO of the reduced iron to compensate for the heat absorbed by the reduced iron to maintain the continuous reduction reaction, and the stirring rod re-stirs the steel slag, the spray gun rotates and sprays the composite agent to each layer, and the waste heat recovery device exhausts smoke and air intake circulation heat exchange to accelerate the reduction reaction rate, so that the molten slag can be effectively utilized.
[0004] However, when the above-mentioned molten slag reduction ironmaking equipment is in use, it can only reduce and make iron on the molten slag on the top of the slag pot, and the molten slag at the bottom of the slag pot cannot be effectively reduced, resulting in a poor reduction effect of the slag. Utility Model Content
[0005] The utility model aims to provide a steelmaking molten slag reduction ironmaking equipment, which solves the problem that when the molten slag reduction ironmaking equipment is in use, only the molten slag on the top of the slag pot can be reduced and ironmaking is carried out, and the molten slag at the bottom of the slag pot cannot be effectively reduced, resulting in a poor reduction effect of the slag.
[0006] To achieve the above-mentioned purpose, the utility model provides a steelmaking molten steel slag reduction ironmaking equipment, including a base, a supporting assembly, an ironmaking assembly and a gas outlet assembly; the supporting assembly includes a slag pot, a heat conduction plate and a sealing plate, the slag pot is fixedly connected to the base and is located on the top of the base, the heat conduction plate is detachably connected to the slag pot and is located inside the slag pot, the sealing plate is detachably connected to the slag pot and is located on the top of the slag pot, the ironmaking assembly is connected to the base, and the gas outlet assembly is connected to the slag pot.
[0007] Among them, the support assembly also includes a support column and a top seat. The number of the support columns is multiple, and the multiple support columns are respectively fixedly connected to the base and are respectively located on the top of the base. The top seat is fixedly connected to the support column and is located on the top of the support column.
[0008] Among them, the ironmaking component includes a suction pump and an air suction pump, the suction pump is fixedly connected to the top seat and located at the bottom of the top seat, the number of the air suction pumps is three, and the three air suction pumps are respectively fixedly connected to the top seat and located at the bottom of the top seat.
[0009] Among them, the ironmaking component also includes a reduction main pipe, a reduction sub-pipe, an air duct and a diversion pipe. The reduction main pipe is fixedly connected to the suction pump and passes through the sealing plate. The reduction sub-pipe is fixedly connected to the reduction main pipe and passes through the slag pot. The number of the air ducts is three, and the three air ducts are respectively fixedly connected to the suction pump and respectively pass through the sealing plate. The number of the diversion pipes is three, and the three diversion pipes are respectively fixedly connected to the air duct and respectively pass through the slag pot.
[0010] Wherein, the air outlet assembly includes an air outlet pipe and a heat storage device, the air outlet pipe is fixedly connected to the sealing plate and passes through the sealing plate, the heat storage device is fixedly connected to the top seat and is located between the air suction pump and the air outlet pipe.
[0011] The utility model discloses a steelmaking molten slag reduction ironmaking equipment, wherein the base provides support for the equipment, the slag pot is used to store molten slag, the heat conduction plate divides the molten slag in the slag pot into two sides, and the sealing plate seals the slag pot. When the molten slag in the slag pot is reduced, the upper and lower layers of the molten slag in the slag pot are respectively reduced by the ironmaking component, and then the heat conduction of the heat conduction plate is used to achieve the purpose of reducing and ironmaking the molten slag at the bottom of the slag pot, thereby solving the problem that when the molten slag reduction ironmaking equipment is in use, only the molten slag at the top of the slag pot can be reduced and ironmaking can be carried out, and the molten slag at the bottom of the slag pot cannot be effectively reduced, resulting in a poor reduction effect of the slag. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0013] Figure 1 It is a schematic diagram of the overall structure of a steelmaking molten slag reduction ironmaking equipment according to the first embodiment of the utility model.
[0014] Figure 2It is a schematic diagram of the internal structure of the slag pot of the first embodiment of the utility model.
[0015] Figure 3 It is a structural schematic diagram of the ironmaking assembly of the first embodiment of the utility model.
[0016] Figure 4 It is a schematic diagram of the overall structure of a steelmaking molten slag reduction ironmaking equipment according to the second embodiment of the utility model.
[0017] In the figure: 101-base, 102-slag pot, 103-heat conduction plate, 104-sealing plate, 105-support column, 106-top seat, 107-suction pump, 108-air suction pump, 109-reduction main pipe, 110-reduction auxiliary pipe, 111-air guide pipe, 112-diversion pipe, 201-air outlet pipe, 202-heat storage device. DETAILED DESCRIPTION
[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0019] The first embodiment of the present application is:
[0020] See also Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the overall structure of a steelmaking molten slag reduction ironmaking equipment according to the first embodiment of the utility model. Figure 2 This is a schematic diagram of the internal structure of the slag pot of the first embodiment of the utility model. Figure 3 It is a structural schematic diagram of the ironmaking component of the first embodiment of the utility model. The utility model provides a steelmaking molten slag reduction ironmaking equipment, including a base 101, a support assembly and an ironmaking assembly, the support assembly includes a slag pot 102, a heat conduction plate 103, a sealing plate 104, a support column 105 and a top seat 106, the ironmaking assembly includes a suction pump 107, an air suction pump 108, a reduction main pipe 109, a reduction auxiliary pipe 110, an air guide pipe 111 and a diversion pipe 112; the above-mentioned scheme solves the problem that when the molten slag reduction ironmaking equipment is in use, only the molten slag on the top of the slag pot can be reduced and iron-made, and the molten slag at the bottom of the slag pot cannot be effectively reduced, resulting in a poor reduction effect of the slag. It can be understood that the above-mentioned scheme can be used in the scenario of molten slag reduction ironmaking, and can also be used to solve the problem of waste heat utilization during reduction ironmaking.
[0021] According to this specific embodiment, the slag pot 102 is fixedly connected to the base 101 and is located on the top of the base 101, the heat conducting plate 103 is detachably connected to the slag pot 102 and is located inside the slag pot 102, the sealing plate 104 is detachably connected to the slag pot 102 and is located on the top of the slag pot 102, the ironmaking component is connected to the base 101, and the base 101 provides support for the equipment. The slag pot 102 is used to store molten steel slag, the heat conducting plate 103 divides the molten steel slag in the slag pot 102 into two sides, and the sealing plate 104 seals the slag pot 102. When the molten steel slag in the slag pot 102 is reduced, the upper and lower layers of the molten steel slag in the slag pot 102 are reduced respectively by the ironmaking component, and then the heat conduction of the heat conducting plate 103 is used to achieve the purpose of reducing the molten steel slag at the bottom of the slag pot 102 for ironmaking.
[0022] Among them, the number of the support columns 105 is multiple, and the multiple support columns 105 are respectively fixedly connected to the base 101 and are respectively located on the top of the base 101. The top seat 106 is fixedly connected to the support columns 105 and is located on the top of the support columns 105. The support columns 105 provide support for the top seat 106, and the top seat 106 provides support for the ironmaking assembly.
[0023] Secondly, the suction pump 107 is fixedly connected to the top seat 106 and is located at the bottom of the top seat 106. There are three air suction pumps 108. The three air suction pumps 108 are respectively fixedly connected to the top seat 106 and are respectively located at the bottom of the top seat 106. The suction pump 107 is connected to an external storage tank to pump the reducing agent in the storage tank into the slag pot 102. The three air suction pumps 108 are respectively used to pump the combustion aid, oxygen-enriched air and incompletely burned CO gas into the slag pot 102.
[0024] Again, the reduction main pipe 109 is fixedly connected to the suction pump 107 and passes through the sealing plate 104. The reduction sub-pipe 110 is fixedly connected to the reduction main pipe 109 and passes through the slag pot 102. The number of the air guide pipes 111 is three. The three air guide pipes 111 are respectively fixedly connected to the suction pump 108 and pass through the sealing plate 104. The number of the branch pipes 112 is three. The three branch pipes 112 are respectively fixedly connected to the air guide pipes 111 and pass through the slag pot 102. The external reducing agent is pumped into the reduction main pipe 109 through the suction pump 107. The reduction main pipe 109 reduces the steel slag on the upper layer of the slag pot 102, and then part of the reducing agent is pumped into the slag pot 102 below the heat conduction plate 103 through the diversion of the reduction sub-pipe 110 to reduce the steel slag in the lower layer of the slag pot 102. The three air suction pumps 108 respectively pump the combustion aid, oxygen-enriched air and CO gas into the upper layer of the slag pot 102 through the air guide pipe 111, so as to achieve the purpose of heating the reduction reaction in the upper layer of the slag pot 102. The combustion aid, oxygen-enriched air and CO gas are diverted through the diversion pipe 112 and introduced into the lower layer of the slag pot 102 to heat the reduction reaction in the lower layer of the slag pot 102.
[0025] A steelmaking molten slag reduction ironmaking equipment using the present embodiment, the base 101 provides support for the equipment, the slag pot 102 is used to store molten slag, the heat conduction plate 103 divides the molten slag in the slag pot 102 into two sides, and the sealing plate 104 seals the slag pot 102. When the molten slag in the slag pot 102 is reduced, the upper and lower layers of molten slag in the slag pot 102 are reduced respectively by the ironmaking component, and then the heat conduction of the heat conduction plate 103 is used to achieve the purpose of reducing and ironmaking the molten slag at the bottom of the slag pot 102, thereby solving the problem that when the molten slag reduction ironmaking equipment is in use, only the molten slag at the top of the slag pot can be reduced and ironmaking is carried out, and the molten slag at the bottom of the slag pot cannot be effectively reduced, resulting in a poor reduction effect of the slag.
[0026] The second embodiment of the present application is:
[0027] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4 It is a schematic diagram of the overall structure of a steelmaking molten slag reduction ironmaking equipment according to the second embodiment of the utility model.
[0028] The steelmaking molten slag reduction ironmaking equipment in this embodiment also includes a gas outlet component, and the gas outlet component includes a gas outlet pipe 201 and a heat storage device 202.
[0029] According to this specific embodiment, the air outlet pipe 201 is fixedly connected to the sealing plate 104 and passes through the sealing plate 104. The heat reservoir 202 is fixedly connected to the top seat 106 and is located between the air suction pump 108 and the air outlet pipe 201. The incompletely burned CO gas will bring out part of the heat generated by the combustion. The incompletely burned CO gas enters the heat reservoir 202 through the air outlet pipe 201, and then the CO gas is pumped into the slag pot 102 through the air suction pump 108, thereby achieving complete combustion of the CO gas and reducing pollution generated by the equipment. The heat is stored in the heat reservoir 202, and the oxygen-enriched air absorbed by the air suction pump 108 is heated by the heat reservoir 202. The heated oxygen-enriched air is convenient for subsequent combustion.
[0030] Using the steelmaking molten steel slag reduction ironmaking equipment of this embodiment, the incompletely burned CO gas enters the heat reservoir 202 through the outlet pipe 201, and then the CO gas is pumped into the slag pot 102 through the suction pump 108, thereby achieving complete combustion of the CO gas and reducing pollution generated by the equipment. The heat is stored in the heat reservoir 202, and the oxygen-enriched air absorbed by the suction pump 108 is heated by the heat reservoir 202, and the heated oxygen-enriched air is convenient for subsequent combustion.
[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A steelmaking molten slag reduction ironmaking equipment, comprising a base, characterized in that: It also includes a support assembly, an ironmaking assembly and a gas outlet assembly; The supporting assembly includes a slag pot, a heat conducting plate and a sealing plate. The slag pot is fixedly connected to the base and is located on the top of the base. The heat conducting plate is detachably connected to the slag pot and is located inside the slag pot. The sealing plate is detachably connected to the slag pot and is located on the top of the slag pot. The ironmaking assembly is connected to the base, and the gas outlet assembly is connected to the slag pot.
2. The steelmaking molten slag reduction ironmaking equipment according to claim 1, characterized in that: The support assembly also includes a support column and a top seat. There are multiple support columns, and the multiple support columns are respectively fixedly connected to the base and are respectively located on the top of the base. The top seat is fixedly connected to the support column and is located on the top of the support column.
3. The steelmaking molten slag reduction ironmaking equipment according to claim 2, characterized in that: The ironmaking component includes a suction pump and an air suction pump. The suction pump is fixedly connected to the top seat and located at the bottom of the top seat. There are three air suction pumps, which are respectively fixedly connected to the top seat and located at the bottom of the top seat.
4. The steelmaking molten slag reduction ironmaking equipment according to claim 3, characterized in that: The ironmaking assembly also includes a reduction main pipe, a reduction sub-pipe, an air duct and a diversion pipe. The reduction main pipe is fixedly connected to the suction pump and passes through the sealing plate. The reduction sub-pipe is fixedly connected to the reduction main pipe and passes through the slag pot. There are three air ducts, which are respectively fixedly connected to the suction pump and pass through the sealing plates. There are three diversion pipes, which are respectively fixedly connected to the air duct and pass through the slag pot.
5. The steelmaking molten slag reduction ironmaking equipment according to claim 3, characterized in that: The air outlet assembly includes an air outlet pipe and a heat storage device. The air outlet pipe is fixedly connected to the sealing plate and passes through the sealing plate. The heat storage device is fixedly connected to the top seat and is located between the air suction pump and the air outlet pipe.