Full-heat-storage furnace with novel structure
By adopting a new structure furnace for fully heat storage in the magnesium refining industry and using refractory bricks and refractory castables for furnace body masonry, the problem of deformation and metal element doping in high temperature environment is solved, and a longer use is achieved Lifespan, lower cost and higher magnesium product purity.
Patent Information
- Application Number
- CN202420367969.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The reduction tanks used in the existing magnesium refining industry become soft and deflated under high temperature environments, resulting in short service life and high cost. During the reduction process, metal elements are doped into crude magnesium, affecting the purity of magnesium products.
A new structure furnace with fully heat storage is adopted. The furnace chamber components are built by using refractory bricks and refractory castables, avoiding the use of reducing tanks, and using refractory materials to maintain stability in high temperature environments to reduce doping of metal elements.
It extends the service life of the furnace body, reduces the cost of thermal reduction of magnesium, improves the purity of magnesium products, and reduces the impact on the processing quality of magnesium alloy products.
Smart Images
Figure CN222514236U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnesium smelting technology, in particular to a new full heat storage structure furnace. Background Art
[0002] At present, relevant domestic policies have proposed to vigorously promote the transformation of advanced energy-saving process technologies and promote green and low-carbon technologies, that is, to focus on promoting a number of energy-saving and emission-reduction technologies such as efficient and stable aluminum electrolysis, continuous copper matte blowing, and regenerative vertical tank magnesium smelting, so as to further improve the level of energy conservation and carbon reduction. However, reduction tanks are commonly used in the magnesium smelting industry to smelt magnesium. Horizontal tank or vertical tank reduction furnaces are mainly used to reduce metallic magnesium from dolomite. The reduction tank will become soft under the action of high temperature (1350°C) for a long time, and will be deflated and deformed under the action of vacuum and cannot be used, resulting in a short service life of the reduction tank and high consumption, which accounts for a large part of the magnesium smelting cost. In addition, during the reduction, some metal elements in the tank will also be reduced and doped into the crude magnesium, resulting in the production of magnesium ingot products with more impurities, affecting the purity of the magnesium product, and thus affecting the processing quality of the subsequent magnesium alloy products.
[0003] In view of this, we propose a new structure furnace with full heat storage. Summary of the invention
[0004] The utility model aims to solve the above-mentioned shortcomings and provide a new structure furnace with full heat storage for magnesium smelting without a reduction tank.
[0005] By using refractory bricks and refractory castables to build the furnace body of the furnace chamber components, the use of reduction tanks for reduction can be avoided. Under long-term high-temperature conditions, the tank body will become soft and will be deflated and deformed under the action of vacuum, resulting in a short service life of the reduction tank and increasing the cost of thermal reduction of magnesium. At the same time, the use of refractory bricks and refractory castables can also avoid the use of reduction tanks. Some metal elements in the tank body will also be reduced and doped into the crude magnesium, affecting the purity of the magnesium product.
[0006] Therefore, the utility model provides a new structure furnace with full heat storage, including a furnace chamber assembly with a furnace body built of refractory bricks and refractory castables, the furnace chamber assembly includes two combustion chambers and a reduction chamber arranged between the two combustion chambers, a crystallizer for cooling and crystallizing the reduced magnesium vapor is arranged on the top of the reduction chamber, a vacuum pump for extracting air from the reduction chamber is arranged on one side of the crystallizer, and a cooling assembly for water circulation cooling the crystallizer is arranged on one side of the vacuum pump.
[0007] As a further improvement of the technical solution, a burner reserved opening is provided on one side of the combustion chamber, and exhaust gas exhaust holes are provided on the flue formed on one side of the two combustion chambers.
[0008] As a further improvement of the technical solution, a V-shaped groove is provided at the bottom of the reduction chamber, a slag outlet is provided at the lowest end of the V-shaped groove of the reduction chamber, and a feed port is provided at the top of the reduction chamber.
[0009] As a further improvement of the technical solution, a vacuum tube is provided between the crystallizer and the reduction chamber, a connecting pipe is provided between the crystallizer and the vacuum pump, and a cooling chamber is provided in the crystallizer.
[0010] As a further improvement of the present technical solution, the cooling assembly includes a water tank, a water pump fixed to one side of the water tank and two water pipes, the cooling chamber is connected to the two water pipes, one of which is fixed to the water pump and the other is fixed in the water tank.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In this new full-heat storage structure furnace, refractory bricks and refractory castables are used to build the furnace body of the furnace chamber components, avoiding the use of reduction tanks for reduction. Under long-term high-temperature conditions, the tank body will become soft and will be deflated and deformed under the action of vacuum, resulting in a short service life of the reduction tank and increasing the cost of magnesium thermal reduction.
[0013] In the new full-heat storage structure furnace, refractory bricks and refractory castables are used to avoid the situation where some metal elements in the reduction tank are reduced and mixed into the crude magnesium during reduction in the reduction tank, thus affecting the purity of the magnesium product. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A diagram is provided for the overall schematic diagram of the embodiment;
[0015] Figure 2 FIG2 is an overall schematic diagram of the embodiment;
[0016] Figure 3 is a cross-sectional view of a furnace chamber assembly of an embodiment;
[0017] Figure 4 It is a cross-sectional view of the crystallizer of the embodiment.
[0018] The meaning of each number in the figure is:
[0019] 100. Furnace chamber assembly; 101. Slag outlet; 102. Smoke exhaust hole; 103. Feed inlet; 104. Burner reserved opening; 105. Reduction chamber; 106. Combustion chamber; 110. Crystallizer; 111. Cooling chamber; 112. Vacuum tube; 120. Vacuum pump; 121. Connecting pipe; 130. Cooling assembly; 131. Water tank; 132. Water pump; 133. Water pipe. Implementation
[0020] Reduction tanks are commonly used in the magnesium smelting industry to smelt magnesium. Horizontal or vertical tank reduction furnaces are mainly used to reduce metallic magnesium from dolomite. The reduction tank will become soft under the action of high temperature (1350℃) for a long time, and will be sucked and deformed under the action of vacuum and cannot be used, resulting in a short service life of the reduction tank and high consumption, which accounts for a large part of the magnesium smelting cost. In addition, during the reduction, some metal elements in the tank will also be reduced and doped into the crude magnesium, resulting in the production of magnesium ingots with more impurities, affecting the purity of the magnesium product, and further affecting the processing quality of the subsequent magnesium alloy products.
[0021] like Figure 1-Figure 4 As shown, this embodiment provides a new structure furnace with full heat storage, including a furnace chamber assembly 100 with a furnace body built of refractory bricks and refractory castables, the furnace chamber assembly 100 includes two combustion chambers 106 and a reduction chamber 105 arranged between the two combustion chambers 106. Considering the crystallization of magnesium vapor, a crystallizer 110 for cooling and crystallizing the reduced magnesium vapor is provided on the top of the reduction chamber 105. Considering that magnesium reduction needs to be carried out under vacuum conditions, a vacuum pump 120 for extracting air from the reduction chamber 105 is provided on one side of the crystallizer 110. Considering the cooling of the crystallizer 110, a cooling assembly 130 for water circulation cooling of the crystallizer 110 is provided on one side of the vacuum pump 120.
[0022] The improvement of this embodiment is that the furnace body of the furnace chamber assembly 100 is built with refractory bricks and refractory castables, thereby avoiding the use of a reduction tank for reduction. Under long-term high-temperature conditions, the tank body will become soft and will be deflated and deformed under the action of a vacuum, resulting in a short service life of the reduction tank and increased costs for thermal reduction of magnesium. At the same time, the use of refractory bricks and refractory castables also avoids the situation in which some metal elements in the tank body are reduced and doped into the crude magnesium during reduction in the reduction tank, thereby affecting the purity of the magnesium product.
[0023] Considering the generation of exhaust gas during combustion and the cooling of the crystallizer 110, a second embodiment of the present invention is shown.
[0024] A burner reserved opening 104 is provided on one side of the combustion chamber 106, and a flue formed on one side of the two combustion chambers 106 is provided with a waste gas exhaust hole 102, and the waste gas generated during combustion is discharged from the combustion chamber 106 by using the exhaust hole 102. A V-shaped groove is provided at the bottom of the reduction chamber 105, and a slag outlet 101 is provided at the lowest end of the V-shaped groove of the reduction chamber 105. The V-shaped groove structure is used to facilitate the slag discharge of the reduction slag. A feed port 103 is provided on the top of the reduction chamber 105, and a vacuum tube 112 is provided between the crystallizer 110 and the reduction chamber 105. A vacuum tube 112 is provided between the crystallizer 110 and the vacuum pump 120. A connecting pipe 121 is provided in the crystallizer 110, a cooling chamber 111 is provided in the crystallizer 110, and the cooling assembly 130 includes a water tank 131, a water pump 132 fixed to one side of the water tank 131, and two water pipes 133. The cooling chamber 111 is communicated with the two water pipes 133, one of which is fixed to the water pump 132, and the other is fixed in the water tank 131. The water in the water tank 131 is discharged into the cooling chamber 111 by the water pump 132, and the excess water in the cooling chamber 111 is discharged to the water tank 131 through the water pipe 133, so as to realize water circulation.
[0025] In summary, the working principle of this solution is as follows:
[0026] The combustion chamber 106 is heated by spraying flames through the burner reserved opening 104, and the heat of the combustion chamber 106 is transferred to the reduction chamber 105 by the heat transfer principle. After the temperature is reached, the pressed material balls are put into the reduction chamber 105 through the feed port 103, so as to achieve the magnesium thermal reduction temperature condition. At the same time, the exhaust gas generated by the combustion is discharged through the smoke exhaust hole 102, and the water pump 132 is started. The water in the water tank 131 is discharged into the cooling chamber 111 by the water pump 132, and the excess water in the cooling chamber 111 is discharged to the water tank 131 through the water pipe 133 to achieve water circulation, and the vacuum pump 120 is started. The vacuum pump 120 is used to discharge the gas in the reduction chamber 105, so as to achieve the magnesium thermal reduction vacuum condition. When the magnesium is thermally reduced, the magnesium vapor generated by the high temperature is discharged from the vacuum tube 112 to the crystallizer 110, and the magnesium vapor reaches the cooling chamber 111 of the crystallizer 110 for cooling and crystallization, so as to obtain crude magnesium.
[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A full heat storage new structure furnace, comprising a furnace chamber assembly (100) constructed with refractory bricks and refractory castables, characterized in that: The furnace chamber assembly (100) comprises two combustion chambers (106) and a reduction chamber (105) disposed between the two combustion chambers (106); a crystallizer (110) for cooling and crystallizing reduced magnesium vapor is disposed on the top of the reduction chamber (105); a vacuum pump (120) for extracting air from the reduction chamber (105) is disposed on one side of the crystallizer (110); and a cooling assembly (130) for circulating water to cool the crystallizer (110) is disposed on one side of the vacuum pump (120).
2. The full heat storage new structure furnace according to claim 1 is characterized in that: A burner reserved opening (104) is provided on one side of the combustion chamber (106), and a waste gas exhaust hole (102) is provided on a flue formed on one side of the two combustion chambers (106).
3. The full heat storage new structure furnace according to claim 2 is characterized in that: The bottom of the reduction chamber (105) is provided with a V-shaped groove, the lowest end of the V-shaped groove of the reduction chamber (105) is provided with a slag outlet (101), and the top of the reduction chamber (105) is provided with a feed inlet (103).
4. The full heat storage new structure furnace according to claim 1 is characterized in that: A vacuum tube (112) is provided between the crystallizer (110) and the reduction chamber (105), a connecting tube (121) is provided between the crystallizer (110) and the vacuum pump (120), and a cooling chamber (111) is provided in the crystallizer (110).
5. The full heat storage new structure furnace according to claim 4 is characterized in that: The cooling assembly (130) comprises a water tank (131), a water pump (132) fixed to one side of the water tank (131), and two water pipes (133); the cooling cavity (111) is connected to the two water pipes (133), one of the water pipes (133) is fixed to the water pump (132), and the other water pipe (133) is fixed in the water tank (131).