Waste heat recovery suspension magnetization roasting furnace
By using the main furnace waste heat to preheat the reactor gas in the ore suspension magnetized roasting furnace, the problems of high energy consumption and poor reaction conditions in the prior art are solved, and more efficient energy utilization and temperature control are achieved.
Patent Information
- Application Number
- CN202420847194.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-23
AI Technical Summary
In the existing ore suspension magnetization roasting technology, the reactor temperature is increased by increasing the furnace temperature and external heating, resulting in an increase in energy consumption, and the external low-temperature gas entering the reactor reduces the temperature, affecting the reaction conditions.
A waste heat recovery suspension magnetized roasting furnace is designed to use the high-temperature waste heat generated by the main furnace to preheat the external air or nitrogen entering the reactor through the gas pipeline to reduce energy consumption. The furnace body includes annular cylindrical asbestos board, insulation block, castable and gas pipelines, which wrap high-temperature rock wool and plastics, providing telescopic space to ensure smooth passage.
The energy loss of the reactor is reduced by preheating the gas, the preheating time is shortened, and the energy consumption is reduced.
Smart Images
Figure CN222317741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ore metallurgy, in particular to a waste heat recovery suspension magnetization roasting furnace. Background Art
[0002] When conducting suspended magnetized roasting of ore, the existing technology can only increase the temperature of the reactor by increasing the temperature of the roasting furnace and externally heating the reactor. The heat flow distance is long, which leads to increased energy consumption. Since the reactor needs to be connected to external air or nitrogen, the external air or nitrogen directly enters the reactor to participate in the reaction, which lowers the internal temperature and causes the material reaction conditions to not reach the ideal value. In addition, due to the entry of external low-temperature gas, the entire reactor needs to absorb more heat to reach the ideal reaction temperature, which increases energy consumption. Utility Model Content
[0003] The utility model aims to solve the deficiencies in the prior art and provide a waste heat recovery suspension magnetization roasting furnace which utilizes the excess high-temperature heat generated by the main furnace to preheat the gas passing through the reactor.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a waste heat recovery suspension magnetization roasting furnace, including an annular cylindrical asbestos board, an annular cylindrical insulation block is arranged inside the asbestos board, an annular cylindrical casting material is arranged inside the insulation block, a spring-shaped winding and spiraling gas pipeline is arranged inside the casting material from top to bottom, an upper movable joint and a lower movable joint are respectively arranged outside the asbestos board, and the gas pipeline is connected to the upper movable joint and the lower movable joint respectively. The upper movable joint and the lower movable joint can be removed when heating is not required.
[0005] Preferably, the gas pipeline is wrapped with high-temperature rock wool.
[0006] Preferably, the high temperature rock wool is wrapped with plastic.
[0007] It needs to be further explained that when pouring the castable, direct pouring of high-temperature rock wool can easily cause mortar to directly enter the rock wool, resulting in no expansion space for the gas pipeline. The plastic wrapped around the gas pipeline is used to provide expansion space for the gas pipeline to ensure smooth gas flow.
[0008] Preferably, the lower movable joint is connected to the air intake pipeline.
[0009] Preferably, the upper movable joint is connected to the gas outlet pipeline and connected to the reactor.
[0010] Preferably, the asbestos board and the thermal insulation block are bonded by high-temperature cement.
[0011] Preferably, the insulation block is mullite.
[0012] Compared with the prior art, the utility model has the following advantages: the utility model arranges a gas pipeline in the main furnace, utilizes the high-temperature waste heat generated by the operation of the main furnace to preheat the external air or nitrogen leading to the reactor, reduces energy consumption, shortens the preheating time of the reactor and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is the first cross-sectional view of the present utility model.
[0014] Figure 2 It is the second cross-sectional view of the present utility model.
[0015] Among them, 10-asbestos board, 11-insulation block, 12-casting material, 13-gas pipeline, 14-high temperature rock wool, 15-plastic, 16-upper movable joint, 17-lower movable joint. DETAILED DESCRIPTION
[0016] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.
[0017] like Figure 1 to Figure 2 The waste heat recovery suspension magnetization roasting furnace shown in the figure comprises an annular cylindrical asbestos board 10, the asbestos board 10 is closely attached to the inner wall of the furnace section of the roasting furnace, an annular cylindrical insulation block 11 is pasted on the inner side of the asbestos board 10, the asbestos board 10 and the insulation block are bonded by high-temperature cement, the insulation block 11 is mullite, an annular cylindrical casting material 12 is cast on the inner side of the insulation block 11, and the inside of the casting material 12 is coiled from top to bottom with a spring-like winding and spiraling gas pipeline 13, wherein the thickness of the casting material 12 is set at 150mm, the gas pipeline 13 is placed at an inner diameter of 50mm, and the gas pipeline 13 adopts a quarter pipe, and the upper and lower pipelines are coiled when the gas pipeline 13 is coiled. The distance between them is controlled at 2.5 cm, the gas pipeline 13 is wrapped with high-temperature rock wool 14, and the high-temperature rock wool 14 is wrapped with plastic 15. The plastic 15 is isolated from the castable 12 to prevent the castable 12 from entering the high-temperature rock wool 14 during the pouring process. The outer side of the asbestos board 10 is respectively provided with an upper movable joint 16 and a lower movable joint 17. The gas pipeline 13 is respectively connected to the upper movable joint 16 and the lower movable joint 17. The upper movable joint 16 and the lower movable joint 17 are both four-branch joints. The lower movable joint 17 is connected to the air inlet pipeline, and the upper movable joint 16 is connected to the air outlet pipeline and connected to the reactor.
[0018] The working principle and process of this embodiment are as follows: the air inlet pipe is connected to the external air, and the external air enters the roasting furnace from the lower movable joint 17. When passing through the disc-shaped gas pipe 13, the high-temperature waste heat of the roasting furnace is used to heat the air in the gas pipe 13. The heated gas passes through the upper movable joint 16 and the air outlet pipe and enters the reactor. The high-temperature waste heat of the roasting furnace is used to preheat the external air, and the gas then enters the reactor to reduce the energy loss of the reactor.
[0019] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A waste heat recovery suspension magnetization roasting furnace, characterized in that: It includes an annular columnar asbestos board, an annular columnar insulation block is arranged on the inner side of the asbestos board, an annular columnar castable is arranged on the inner side of the insulation block, a spring-shaped winding and spiraling gas pipeline is arranged inside the castable from top to bottom, an upper movable joint and a lower movable joint are respectively arranged on the outer side of the asbestos board, and the gas pipeline is respectively connected to the upper movable joint and the lower movable joint.
2. The waste heat recovery suspension magnetization roasting furnace according to claim 1, characterized in that: The gas pipeline is wrapped with high-temperature rock wool.
3. The waste heat recovery suspension magnetization roasting furnace according to claim 2, characterized in that: The high temperature rock wool is wrapped with plastic all around.
4. The waste heat recovery suspension magnetization roasting furnace according to claim 1, characterized in that: The lower movable joint is connected to the air intake pipeline.
5. The waste heat recovery suspension magnetization roasting furnace according to claim 1, characterized in that: The upper movable joint is connected to the gas outlet pipeline and the reactor.
6. The waste heat recovery suspension magnetization roasting furnace according to claim 1, characterized in that: The asbestos board and the thermal insulation block are bonded by high temperature cement.
7. The waste heat recovery suspension magnetization roasting furnace according to claim 6, characterized in that: The thermal insulation block is mullite.