Apparatus and method for gas reduction of mineral material

Abstract

The application provides a device and method for gas reduction of mineral materials, belonging to the field of chemical engineering and metallurgy technology, comprising a furnace main body, a waste heat recovery assembly, a mineral material storage assembly and a dust treatment assembly, wherein the furnace main body is provided with a discharge structure; the waste heat recovery assembly comprises a first pipeline in communication with the inside of the furnace main body, a settling chamber in communication with the end of the first pipeline away from the furnace main body, and heat exchange structures for heat transfer with the first pipeline and the settling chamber, respectively; the mineral material storage assembly is in communication with the furnace main body and is used for automatically feeding the furnace main body; the mineral material storage assembly is connected with the heat exchange structures and is used for preheating the mineral materials; and the dust treatment assembly comprises a containing member connected with the settling chamber, a mixing and shaping member arranged in the settling chamber and a conveying member for conveying the dust products. The device and method for gas reduction of mineral materials provided by the application preheat the mineral materials and gas by using the waste heat generated by the furnace main body, so that the reaction efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the fields of chemical and metallurgical technology, and more specifically, relates to an apparatus and method for gas reduction of mineral materials. Background Technology

[0002] Currently, most of the waste heat from high-temperature flue gas in electric furnaces in China is not being recovered and utilized. Some companies are attempting to recover the waste heat from electric furnace flue gas, but the recovery results are not ideal. Summary of the Invention

[0003] The purpose of this invention is to provide an apparatus and method for gas reduction of mineral materials, aiming to solve the technical problem of poor performance in flue gas waste heat recovery in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an apparatus for gas reduction of mineral materials, comprising:

[0005] The furnace body contains a discharge structure.

[0006] The waste heat recovery assembly includes a first pipe with one end connected to the interior of the furnace body, a settling chamber connected to the end of the first pipe away from the furnace body, and heat exchange structures for heat transfer with the first pipe and the settling chamber, respectively.

[0007] The ore storage component is connected to the furnace body and is used to automatically feed ore into the furnace body; the ore storage component is connected to the heat exchange structure and is used to preheat the ore.

[0008] The dust and ash treatment assembly includes a material holding component connected to the settling chamber, a mixing and shaping component disposed within the settling chamber (32), and a transport component for transporting the finished dust and ash product.

[0009] Preferably, the heat exchange structure includes:

[0010] The container holds the evaporation medium.

[0011] The second pipe has one end connected to the box body through a one-way communication structure. Part of the structure of the second pipe is located inside the first pipe, and part of the structure of the second pipe is located in the settling chamber.

[0012] A heat conductor is connected to the second pipe, the heat conductor is connected to the housing, and the heat conductor is connected to the mineral storage assembly.

[0013] Preferably, the settling chamber comprises:

[0014] The settling chamber body is connected to the material holding component, and the settling chamber body is equipped with the mixing and shaping component and the transport component;

[0015] A magnetic separation component, located inside the settling chamber, is used to screen magnetic materials.

[0016] The cooling component is connected to the settling chamber body and communicates with the second pipe. It has a first use state and a second use state. In the first use state, the cooling component cools the dust entering the settling chamber body. In the second use state, the cooling component flushes the magnetic separation component and / or the interior of the settling chamber body.

[0017] Preferably, the hybrid shaping component includes:

[0018] The movable plate is movably connected to the main body of the settling chamber and has a first use state and a second use state. In the first use state, the movable plate is in contact with the inner wall of the main body of the settling chamber. In the second use state, the movable plate is laid inside the main body of the settling chamber and divides the interior of the main body of the settling chamber into two independent spaces.

[0019] The stirring structure is rotatably connected to the main body of the settling chamber;

[0020] A drive assembly, connected to the movable plate, is used for transmission connection with the stirring structure when the movable plate is in the second use state.

[0021] Preferably, the magnetic separation component includes:

[0022] Several electromagnets are provided, and the electromagnets are connected to the inner wall of the settling chamber body.

[0023] A power supply structure is electrically connected to several of the aforementioned electromagnets;

[0024] A protective layer, connected to the inner wall of the settling chamber, is used to cover the electromagnet.

[0025] Preferably, the mineral storage assembly includes a holding body, which is connected to the heat conductor via a heat-conducting structure.

[0026] Preferably, it further includes a gas supply component connected to the furnace body; the gas supply component is connected to the waste heat recovery component.

[0027] Preferably, the material container is arranged adjacent to a portion of the structure of the gas supply component, and the lower end of the material container is connected to the heat conductor.

[0028] Preferably, the cooling component is equipped with a nozzle.

[0029] The present invention also provides a method for gas reduction of mineral materials, comprising the following steps:

[0030] The beneficial effects of the apparatus and method for gas reduction of mineral materials provided by this invention are as follows: Compared with the prior art, the apparatus and method of this invention effectively absorbs the heat contained in the high-temperature flue gas through the heat exchange structure and reuses this heat. The settling chamber effectively collects the flue gas. The mineral storage component can preheat the mineral material through the heat exchange structure, thereby improving the efficiency of the apparatus in reducing mineral materials. The dust and ash treatment component can collect, mix, shape, and transport the flue gas, facilitating the treatment of dust and ash by the apparatus. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0032] Figure 1 This is a schematic diagram of a device and method for gas reduction of mineral materials provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of a device and method for gas reduction of mineral materials provided in an embodiment of the present invention;

[0034] Figure 3 This is a front view schematic diagram of an apparatus and method for gas reduction of mineral materials provided in an embodiment of the present invention;

[0035] Figure 4 for Figure 3 A side view of a device and method for gas reduction of mineral materials is shown.

[0036] Figure 5 This is a three-dimensional structural diagram of the light source support used in an embodiment of the present invention.

[0037] In the diagram: 1. Furnace body; 2. Discharge structure; 3. Waste heat recovery assembly; 31. First pipeline; 32. Settling chamber; 321. Settling chamber body; 322. Magnetic separation assembly; 323. Cooling assembly; 33. Heat exchange structure; 331. Box; 332. Second pipeline; 333. Heat conductor; 334. One-way connection structure; 4. Mineral storage assembly; 41. Container; 5. Dust and ash treatment assembly; 51. Container; 52. Mixing and shaping component; 521. Movable plate; 522. Stirring structure; 523. Drive assembly; 53. Transport component; 6. Gas supply assembly. Detailed Implementation

[0038] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0039] Please refer to the following: Figure 1 and Figure 2 The present invention will now describe an apparatus for gas reduction of mineral materials. The apparatus includes a furnace body 1, a waste heat recovery component 3, a mineral material storage component 4, and a dust and ash treatment component 5. The furnace body 1 contains a discharge structure 2. The waste heat recovery component 3 includes a first pipe 31 connected at one end to the interior of the furnace body 1, a settling chamber 32 connected to the end of the first pipe 31 away from the furnace body 1, and a heat exchange structure 33 for heat transfer with the first pipe 31 and the settling chamber 32, respectively. The mineral material storage component 4 is connected to the furnace body 1 and is used for automatically feeding materials into the furnace body 1. The mineral material storage component 4 is connected to the heat exchange structure 33 and is used for preheating the mineral materials. The dust and ash treatment component 5 includes a material holding component 51 connected to the settling chamber 32, a mixing and shaping component 52 disposed within the settling chamber 32, and a transport component 53 for transporting the finished dust and ash product.

[0040] The material reacts within the furnace body 1 to generate high-temperature flue gas, which flows into the settling chamber 32 through the first pipe 31 and settles within the chamber. As the high-temperature flue gas passes through the first pipe 31 and the settling chamber 32, its heat is absorbed by the heat exchange structure 33. The dust and ash treatment component 5, located within the settling chamber 32, operates during the dust and ash settling process. Dust and ash in the flue gas fall into the material container 51, where the mixing and shaping component 52 shapes the dust and ash. Finally, it is transported out via the conveyor component 53. The ore storage component 4 is connected to the heat exchange structure 33, which preheats the ore raw materials, improving the production efficiency of the reduced ore in this device.

[0041] This invention provides an apparatus for gas reduction of mineral materials. Compared with existing technologies, the heat exchange structure 33 effectively absorbs and reuses the heat contained in the high-temperature flue gas. The settling chamber 32 effectively collects the flue gas. The mineral material storage component 4 preheats the mineral material through the heat exchange structure 33, thereby improving the operating efficiency of the apparatus for reducing mineral materials. The dust and ash treatment component 5 collects, mixes, shapes, and transports the flue gas, facilitating the treatment of dust and ash by the apparatus.

[0042] As some embodiments provided in this invention, please refer to Figures 1 to 5The heat exchange structure 33 includes: a housing 331, a second pipe 332, and a heat conductor 333. The housing 331 contains an evaporation medium. One end of the second pipe 332 is connected to the housing 331, and the other end is connected to the heat conductor 333. A portion of the second pipe 332 is located inside the first pipe 31, and a portion of the second pipe 332 is located inside the settling chamber 32. The heat conductor 333 is connected to the second pipe 332, the housing 331, and the ore storage assembly 4. The housing 331 is connected to the second pipe 332 through a one-way connection structure 334.

[0043] The evaporating medium contained in the second pipe 332 absorbs heat from the first pipe 31 and the settling chamber 32. After absorbing heat, the evaporating medium evaporates and enters the heat conductor 333. The heat conductor 333 is connected to the ore storage assembly 4 and is used to heat the ore contained in the ore storage assembly 4. The evaporating medium in the heat conductor 333 cools down during the heating process of the ore and then flows back into the box 331. The heat conductor located in the box 331 enters the second pipe 332 through the one-way connection structure 334. At least part of the structure of the box 331 and the second pipe 332 is at the same horizontal level, and the evaporating medium can automatically enter the second pipe 332 through the one-way connection structure 334. The horizontal level of the heat conductor 333 is higher than that of the second pipe 332. The evaporating medium in the second pipe 332 is heated to form hot steam, which automatically flows into the heat conductor 333 along the second pipe 332. The liquid evaporating medium in the heat conductor 333 can also automatically flow into the box 331 through the pipe structure. The heat exchange structure 33 does not require a drive device to automatically realize the circulation of the steam medium, and can effectively utilize thermal energy.

[0044] In this embodiment, the one-way communication structure 334 is a Tesla valve. The steam medium can only be automatically transported from the housing 331 to the second pipeline 332.

[0045] As some embodiments provided in this invention, please refer to Figures 1 to 5The settling chamber 32 includes a settling chamber body 321, a magnetic separation component 322, and a cooling component 323. The settling chamber body 321 is connected to a material holding component 51, and a mixing and shaping component 52 and a transport component 53 are provided inside the settling chamber body 321. The magnetic separation component 322 is disposed inside the settling chamber body 321 and is used to screen magnetic materials. The cooling component 323 is connected to the settling chamber body 321 and communicates with a second pipe 332, having a first use state and a second use state. In the first use state, the cooling component 323 cools the dust entering the settling chamber body 321. In the second use state, the cooling component 323 flushes the magnetic separation component 322 and / or the interior of the settling chamber body 321. The settling chamber body 321 is used to collect flue gas dust and prevent its diffusion. The magnetic separation component 322 can adsorb magnetic materials in the flue gas dust and improve the utilization rate of magnetic materials in the flue gas dust and improve the utilization rate of magnetic materials in the flue gas dust and improve the utilization rate of magnetic materials in the flue gas dust and improve the utilization rate of magnetic materials. The cooling component 323 can absorb heat from the flue gas dust, clean the settling chamber body 321 and the magnetic separation component 322, and accelerate the settling of flue gas dust.

[0046] In this embodiment, the cooling assembly 323 includes a container body connected to the top of the settling chamber body 321 and a nozzle disposed on the container body. The container body is connected to the second pipe 332.

[0047] In this embodiment, the magnetic separation assembly 322 includes: an electromagnet, a power supply structure, and a protective layer. Several electromagnets are provided and connected to the inner wall of the settling chamber body 321. The power supply structure is electrically connected to the several electromagnets. The protective layer is connected to the inner wall of the settling chamber body 321 and is used to cover the electromagnets. The electromagnetic structure enables rapid adsorption and release of magnetic materials. The protective layer improves the safety of the magnetic separation assembly 322 during use.

[0048] As some embodiments provided in this invention, please refer to Figures 1 to 5 The mixing and shaping component 52 includes: a movable plate 521, a stirring structure 522, and a driving assembly 523. The movable plate 521 is movably connected to the settling chamber body 321 and has a first use state and a second use state. In the first use state, the movable plate 521 is in contact with the inner wall of the settling chamber body 321. In the second use state, the movable plate 521 is laid inside the settling chamber body 321 and divides the interior of the settling chamber body 321 into two independent spaces. The stirring structure 522 is rotatably connected to the settling chamber body 321. The driving assembly 523 is connected to the movable plate 521 and is used for transmission connection with the stirring structure 522 when the movable plate 521 is in the second use state.

[0049] The settling chamber body 321 has a regular rectangular cross-section. Two movable plates 521 are provided. One end of each movable plate 521 is rotatably connected to the inner wall of the settling chamber body 321. Each movable plate 521 includes a main body with a groove on its side. A spring is installed in the groove, and a sliding plate, made of rubber, is slidably connected within it. The sliding plate has a limiting structure, and the spring drives the movable plate to reciprocate. When the movable plate 521 is in its first operating state, the spring is compressed, and the sliding plate is in contact with the electromagnet. When the movable plate 521 is in its second operating state, the limiting structures of the two movable plates 521 cooperate to limit the end of the stirring structure 522 that is away from the settling chamber body 321. At this time, the drive assembly 523 on either movable plate 521 is connected to the stirring structure 522.

[0050] The drive component 523 is embedded in any of the movable plates 521, which improves the concealment of the drive component 523.

[0051] As some embodiments provided in this invention, please refer to Figures 1 to 5 The mineral storage component 4 includes a holding body 41, which is connected to a heat conductor 33 via a heat-conducting structure. Heat exchange can occur between the holding body 41 and the heat conductor 33 to preheat the material inside the holding body 41.

[0052] The ore storage component 4 also includes a transport structure, one end of which is connected to the holding container 41, and the other end is connected to the furnace body 1. The transport component is a conveyor belt structure that can automatically transport materials from the holding container 41 to the furnace body 1.

[0053] As some embodiments provided in this invention, please refer to Figures 1 to 5 It also includes a gas supply assembly 6 connected to the furnace body 1; the gas supply assembly 6 is connected to the waste heat recovery assembly 3. The waste heat recovery assembly 3 heats the gas in the gas supply assembly 6, improving the operating efficiency of the device.

[0054] The gas supply assembly 6 includes multiple containment tanks and a mixing tank connected to these tanks. The mixing tank is equipped with a second valve connected to the furnace body 1 via a piping structure. Each containment tank is filled with hydrogen, carbon monoxide, carbon dioxide, and nitrogen, respectively. In use, the first valve on the mixing tank is opened, and hydrogen, carbon monoxide, carbon dioxide, and nitrogen are injected into the mixing tank through the piping. Then, the first valve is closed, and the mixing assembly inside the mixing tank mixes the gases for later use. When needed, the second valve on the mixing tank is opened to allow the mixed gas to flow into the furnace body 1.

[0055] The container 41 is arranged adjacent to the mixing tank, and the heat conductor 333 is connected to the lower end of both the container 41 and the mixing tank. The container 41 and the mixing tank are made of heat-conducting material.

[0056] The waste heat generated by the reaction in the main furnace 1 is used to preheat the ore and gas, thereby improving the reaction efficiency.

[0057] As some embodiments provided in this invention, please refer to Figures 1 to 5 ,

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for gas reduction of mineral materials, characterized in that, include: The furnace body (1) has a discharge structure (2) inside. The waste heat recovery assembly (3) includes a first pipe (31) with one end connected to the interior of the furnace body (1), a settling chamber (32) connected to the end of the first pipe (31) away from the furnace body (1), and a heat exchange structure (33) for heat transfer with the first pipe (31) and the settling chamber (32). The ore storage component (4) is connected to the furnace body (1) and is used to automatically feed the ore into the furnace body (1); the ore storage component (4) is connected to the heat exchange structure (33) and is used to preheat the ore. The dust and ash treatment assembly (5) includes a material holding component (51) connected to the settling chamber (32), a mixing and shaping component (52) disposed in the settling chamber (32), and a transport component (53) for transporting the finished dust and ash product. The heat exchange structure (33) includes: The housing (331) contains the evaporation medium; The second pipe (332) is connected to the box (331) at one end through a one-way communication structure (334). Part of the structure of the second pipe (332) is located inside the first pipe (31), and part of the structure of the second pipe (332) is located inside the settling chamber (32). The heat conductor (333) is connected to the second pipe (332), the heat conductor (333) is connected to the box (331), and the heat conductor (333) is connected to the mineral storage assembly (4); The settling chamber (32) includes: The settling chamber body (321) is connected to the material holding component (51), and the settling chamber body (321) is provided with the mixing and shaping component (52) and the transport component (53). A magnetic separation component (322) is disposed inside the settling chamber body (321) and is used to screen magnetic materials; The cooling component (323) is connected to the settling chamber body (321) and communicates with the second pipe (332). It has a first use state and a second use state. In the first use state, the cooling component (323) cools down the dust entering the settling chamber body (321). In the second use state, the cooling component (323) flushes the magnetic separation component (322) and / or the interior of the settling chamber body (321). The hybrid shaping component (52) includes: The movable plate (521) is movably connected to the settling chamber body (321) and has a first use state and a second use state. In the first use state, the movable plate (521) is in contact with the inner wall of the settling chamber body (321). In the second use state, the movable plate (521) is laid inside the settling chamber body (321) and divides the interior of the settling chamber body (321) into two independent spaces. The stirring structure (522) is rotatably connected to the settling chamber body (321); The drive assembly (523) is connected to the movable plate (521) and is used to drive the stirring structure (522) when the movable plate (521) is in the second use state.

2. The apparatus for gas reduction of mineral materials as described in claim 1, characterized in that, The magnetic separation component (322) includes: Several electromagnets are provided, and the electromagnets are connected to the inner wall of the settling chamber body (321); A power supply structure is electrically connected to several of the aforementioned electromagnets; A protective layer, connected to the inner wall of the settling chamber body (321), is used to cover the electromagnet.

3. The apparatus for gas reduction of mineral materials as described in claim 2, characterized in that: The mineral storage component (4) includes a holding body (41), which is connected to the heat conductor (333) through a heat-conducting structure.

4. The apparatus for gas reduction of mineral materials as described in claim 3, characterized in that, It also includes a gas supply assembly (6) connected to the furnace body (1); the gas supply assembly (6) is connected to the waste heat recovery assembly (3).

5. The apparatus for gas reduction of mineral materials as described in claim 4, characterized in that: The material container (41) is partially adjacent to the gas supply component (6), and the lower end of the material container (41) is connected to the heat conductor (333).

6. The apparatus for gas reduction of mineral materials as described in claim 5, characterized in that: The cooling component (323) is equipped with a nozzle.

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