High-temperature oxidized waste gas preheating furnace system in silicon carbide smelting process

Abstract

The utility model relates to the technical field of silicon carbide smelting, specifically discloses a high-temperature oxidation waste gas preheating furnace body system in silicon carbide smelting process, including smelting furnace, its upper end middle side is installed with the installation pipe, fixed block is installed in the inside of the inside of the body, and the upper side of fixed block is connected with the filter structure, the filter structure includes filter plate, sealing plate and limit rod, the connection pipe is set up in the upper end left side of the body, the upper end right side of the body is provided with the heat exchanger, and the left side of heat exchanger is installed with the limiting structure, the limiting structure includes mounting block, connecting block and fixed rod. This high-temperature oxidation waste gas preheating furnace body system in silicon carbide smelting process is provided with filter structure, can filter waste gas to avoid the damage of waste gas to heat exchanger, and is provided with limiting structure, can limit heat exchanger, thereby plays the assembling effect between the connection pipe and heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide smelting technology, specifically to a high-temperature oxidation waste gas preheating furnace system in the silicon carbide smelting process. Background Technology

[0002] The high-temperature oxidation waste gas preheating furnace system is a measure to preheat the furnace body using high-temperature oxidation waste gas. It is an energy-saving and environmentally friendly system that utilizes high-temperature waste gas (usually containing combustible components or waste heat) generated during industrial production to preheat the furnace body or incoming gas. It is widely used in industries such as metallurgy, chemicals, glass, and ceramics. Its core purpose is to recover waste heat, reduce energy consumption, and reduce pollution emissions, while simultaneously improving furnace operating efficiency. Silicon carbide smelting refers to the industrial process of synthesizing silicon carbide crystals from silicon (Si) and carbon (C) raw materials through a high-temperature chemical reaction. During silicon carbide smelting, a high-temperature oxidation waste gas preheating furnace system is needed to preheat the furnace body, thereby reducing energy consumption and pollution emissions.

[0003] Based on existing solutions and actual production and processing, the current high-temperature oxidation waste gas preheating furnace system in silicon carbide smelting still has some problems. For example, when the high-temperature oxidation waste gas preheating furnace system preheats the furnace body, the waste gas directly enters the heat exchanger and exchanges heat with the fuel gas. Since the waste gas directly enters the heat exchanger, it will affect the heat exchanger. Therefore, this utility model provides a high-temperature oxidation waste gas preheating furnace system in silicon carbide smelting to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature oxidation waste gas preheating furnace body system in the silicon carbide smelting process, so as to solve the problem mentioned in the background art that when the high-temperature oxidation waste gas preheating furnace body system preheats the furnace body, the waste gas directly enters the heat exchanger and exchanges heat with the fuel gas. Because the waste gas directly enters the heat exchanger, it will cause the waste gas to affect the heat exchanger.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature oxidation waste gas preheating furnace system for silicon carbide smelting, including a smelting furnace, an installation pipe installed on the middle side of its upper end, an organic body connected to the right side of the installation pipe, and a connecting pipe connected to the left side of the upper end of the smelting furnace. Also includes: A fixing block is installed inside the machine body, and a filter structure is connected to the upper side of the fixing block. The filter structure includes a filter plate, a sealing plate and a limiting rod. The filter plate is installed on the upper side of the fixing block, and a sealing plate is installed on the front side of the filter plate. A limiting rod is connected to the outer side of the sealing plate. A connecting pipe is located on the upper left side of the machine body. A heat exchanger is located on the upper right side of the machine body, and a limiting structure is installed on the left side of the heat exchanger. The limiting structure includes a mounting block, a connecting block, and a fixing rod. The mounting block is installed on the outer left side of the heat exchanger, and the connecting block is connected to the outer left side of the mounting block. A fixing rod is installed in the middle of the connecting block.

[0006] Preferably, a fixing plate is fixedly installed on the upper outer side of the machine body, and a moving rod is connected to the upper middle part of the fixing plate. A clamping plate is movably installed on the inner side of the moving rod, and a moving block is fixedly installed on the lower outer side of the clamping plate.

[0007] Preferably, an air pump is provided on the upper left side of the machine body, and an air inlet pipe is fixedly installed on the lower end of the air pump, and the upper side of the air pump is connected to the lower side of the connecting pipe.

[0008] Preferably, the filter plates are evenly distributed on the rear side of the sealing plate, and the sealing plate and the limiting rod are threaded together.

[0009] Preferably, a sealing ring is also fixedly installed on the inner side of the mounting block, and the sealing ring and the connecting pipe are in a close fit connection.

[0010] Preferably, the connecting block and the fixing rod are connected by a thread, and the connecting block is fixedly connected to the outer side of the connecting pipe and the outer side of the connecting pipe respectively.

[0011] Preferably, the movable block and the fixed plate are slidably connected, and the vertical cross-sectional shape of the movable block is a "T" shape.

[0012] Preferably, the clamping plate and the heat exchanger are in close contact, and the clamping plate is connected to the moving rod via a bearing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the high-temperature oxidation waste gas preheating furnace body system in the silicon carbide smelting process is equipped with a filter structure, which can filter the waste gas, thereby avoiding damage to the heat exchanger by the waste gas, and is equipped with a limiting structure, which can limit the heat exchanger, thereby playing an assembly role between the connecting pipe and the heat exchanger. 1. By installing the heat exchanger on the upper middle side of the machine body, the heat exchanger drives the mounting block to be installed on the outside of the connecting pipe and the outer side of the connecting pipe respectively. This causes the mounting block to drive the sealing ring to be fitted and installed on the outside of the connecting pipe and the outer side of the connecting pipe respectively. Then, the mounting block is installed on the inner side of the connecting block. By rotating the fixing rod, the fixing rod is threaded in the middle of the connecting block. This makes it easier to assemble the heat exchanger, connecting pipe and connecting pipe. 2. By rotating the moving rod, the moving rod is threadedly connected to the upper middle part of the fixed plate, thereby causing the clamping plate connected to the moving rod via the bearing to slide inward. This causes the clamping plate to drive the moving block to slide inward on the lower middle part of the fixed plate, thus clamping the heat exchanger and facilitating the limiting of the heat exchanger. 3. The filter plate, which is attached to the upper side of the fixed block, facilitates the filtration of impurities in the exhaust gas, thereby preventing damage to the heat exchanger. By rotating the limiting rod, the limiting rod is threaded to the outer side of the middle of the sealing plate, which moves the limiting rod forward and separates it from the front of the machine body. Pulling the sealing plate forward causes the sealing plate to separate the filter plate from the upper side of the fixed block, thus separating the filter plate from the inside of the machine body, making it easy to disassemble and clean the filter plate. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of the connection between the smelting furnace and the mounting pipe of this utility model. Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic cross-sectional view of the connection between the body and the filter plate of this utility model. Figure 4 This utility model Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the overall structure connecting the fixed plate and the moving block of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point C.

[0015] In the diagram: 1. Smelting furnace; 2. Mounting pipe; 3. Machine body; 4. Fixing block; 5. Filter plate; 6. Heat exchanger; 7. Connecting pipe; 8. Air pump; 9. Air inlet pipe; 10. Mounting block; 11. Sealing ring; 12. Connecting block; 13. Fixing rod; 14. Connecting pipe; 15. Sealing plate; 16. Limiting rod; 17. Fixing plate; 18. Moving block; 19. Clamping plate; 20. Moving rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-6 This utility model provides a technical solution: a preheating furnace system for high-temperature oxidation waste gas during silicon carbide smelting, comprising a smelting furnace 1, an installation pipe 2, a machine body 3, a fixing block 4, a filter plate 5, a heat exchanger 6, a connecting pipe 7, a vacuum pump 8, an inlet pipe 9, an installation block 10, a sealing ring 11, a connecting block 12, a fixing rod 13, a connecting pipe 14, a sealing plate 15, a limiting rod 16, a fixing plate 17, a moving block 18, a clamping plate 19, and a moving rod 20. In operation, the specific details are as follows... Figure 1 and Figure 2 As shown, a heat exchanger 6 is installed on the upper right side of the body 3. Mounting blocks 10 are installed on both the upper and lower left sides of the heat exchanger 6. A sealing ring 11 is fixedly installed on the left side inside the mounting block 10. A connecting block 12 is movably installed on the outer side of the left end of the mounting block 10. A fixing rod 13 is connected to the middle of the connecting block 12. A connecting pipe 7 and a connecting pipe 14 are connected to the inner side of the connecting block 12. When the heat exchanger 6 is manually placed on the upper right side of the body 3, the heat exchanger 6 drives the mounting block 10 to engage with the outer sides of the connecting pipe 7 and the connecting pipe 14, respectively. This allows the mounting block 10 to connect... The inner side of block 12 is engaged, which causes the mounting block 10 to drive the sealing ring 11 to be respectively attached to the outer side of the connecting pipe 7 and the outer side of the connecting pipe 14. The fixing rod 13 is manually turned, which causes the fixing rod 13 to be threaded on the outer side of the middle part of the connecting block 12. Under the action of the thread between the fixing rod 13 and the connecting block 12, the fixing rod 13 moves inward, which causes the fixing rod 13 to be threaded on the outer side of the middle part of the mounting block 10. This facilitates the assembly of the heat exchanger 6 and the connecting pipe 7 and the heat exchanger 6 and the connecting pipe 14. Specific examples Figure 3 , Figure 5 and Figure 6 As shown, a fixed plate 17 is fixedly installed on the outer side of the upper end of the body 3. A movable rod 20 is movably installed on the middle side of the upper end of the fixed plate 17. A clamping plate 19 is movably connected to the inner side of the movable rod 20. A movable block 18 is fixedly installed on the outer side of the lower end of the clamping plate 19. When the movable rod 20 is manually rotated, it is threadedly connected to the upper middle part of the fixed plate 17 under the rotation. Under the thread action between the movable rod 20 and the fixed plate 17, the movable rod 20 moves inward. This causes the clamping plate 19, which is connected to the movable rod 20 through a bearing, to slide inward. The clamping plate 19 drives the movable block 18 to slide inward on the lower middle part of the fixed plate 17. This allows the clamping plate 19 to fit against the outer side of the heat exchanger 6, facilitating the limiting of the heat exchanger 6. Specific examples Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the installation pipe 2 is fixedly installed on the middle side of the upper end of the smelting furnace 1. The left side of the upper end of the smelting furnace 1 is connected to the lower left side of the connecting pipe 7. The lower right side of the installation pipe 2 is connected to the machine body 3. The fixing block 4 is fixedly installed inside the machine body 3. The filter plate 5 is movably arranged on the upper side of the fixing block 4. The sealing plate 15 is fixedly installed at the front end of the filter plate 5. The limiting rod 16 is movably connected to the outer side of the middle part of the sealing plate 15. The suction pump 8 is fixedly installed on the left side of the upper end of the machine body 3. The air inlet pipe 9 is installed on the lower side of the suction pump 8. The upper side of the suction pump 8 is connected to the lower side of the connecting pipe 14. The high-temperature oxidizing waste gas generated during smelting inside the smelting furnace 1 enters the interior of the smelting furnace 1 through the installation pipe 2. The filter plate 5 on the upper side of the fixing block 4 filters and removes impurities from the high-temperature oxidizing waste gas. Then the suction pump 8 is started. Driven by the suction pump 8, the high-temperature oxidizing waste gas filtered inside the machine body 3 is removed through the air inlet pipe 9. Oxidation waste gas is drawn into the interior of connecting pipe 14, allowing the high-temperature oxidation waste gas to enter the interior of heat exchanger 6. The high temperature of the oxidation waste gas then exchanges heat with the fuel gas entering heat exchanger 6, allowing the hot fuel gas to enter the interior of connecting pipe 7. This preheats the smelting furnace 1. The limiting rod 16 is then manually turned, causing it to be threaded onto the outer side of the middle of sealing plate 15. This allows the limiting rod 16 to slide forward, separating it from the front of the machine body 3. The sealing plate 15 is then manually pulled forward, causing the filter plate 5 to slide forward within the machine body 3. This separates the filter plate 5 from the upper side of fixing block 4, facilitating disassembly and cleaning of the filter plate 5.

[0018] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-temperature oxidation waste gas preheating furnace system for silicon carbide smelting process, including a smelting furnace (1), an installation pipe (2) is installed on the middle side of its upper end, and an organic body (3) is connected to the right side of the installation pipe (2), and a connecting pipe (7) is connected to the left side of the upper end of the smelting furnace (1). characterized in that Also includes: A fixing block (4) is installed inside the body (3), and a filter structure is connected to the upper side of the fixing block (4). The filter structure includes a filter plate (5), a sealing plate (15) and a limiting rod (16). The filter plate (5) is installed on the upper side of the fixing block (4). The front side of the filter plate (5) is equipped with a sealing plate (15), and the outer side of the sealing plate (15) is connected to the limiting rod (16). A connecting pipe (14) is located on the upper left side of the body (3). A heat exchanger (6) is located on the upper right side of the body (3). A limiting structure is installed on the left side of the heat exchanger (6). The limiting structure includes a mounting block (10), a connecting block (12), and a fixing rod (13). The mounting block (10) is installed on the outer side of the left end of the heat exchanger (6). The outer side of the left end of the mounting block (10) is connected to the connecting block (12), and a fixing rod (13) is installed in the middle of the connecting block (12).

2. The high temperature off-gas preheating furnace system for silicon carbide smelting process of claim 1, wherein: A fixing plate (17) is fixedly installed on the upper outer side of the body (3), and a moving rod (20) is connected to the upper middle part of the fixing plate (17). A clamping plate (19) is movably installed on the inner side of the moving rod (20), and a moving block (18) is fixedly installed on the lower outer side of the clamping plate (19).

3. The high temperature off-gas preheating furnace system for silicon carbide smelting process of claim 2, wherein: An air pump (8) is provided on the upper left side of the body (3), and an air inlet pipe (9) is fixedly installed on the lower end of the air pump (8), and the upper side of the air pump (8) is connected to the lower side of the connecting pipe (14).

4. The high temperature off-gas preheating furnace system for silicon carbide smelting process of claim 1, wherein: The filter plates (5) are evenly distributed on the rear side of the sealing plate (15), and the sealing plate (15) and the limiting rod (16) are threaded together.

5. The high temperature off-gas preheating furnace system for silicon carbide smelting processes of claim 1, wherein: A sealing ring (11) is also fixedly installed on the inner side of the mounting block (10), and the sealing ring (11) and the connecting pipe (14) are in close contact.

6. The high temperature off-gas preheating furnace system for silicon carbide smelting processes of claim 1, wherein: The connecting block (12) and the fixing rod (13) are connected by a thread, and the connecting block (12) is fixedly connected to the outside of the connecting pipe (7) and the outside of the connecting pipe (14) respectively.

7. The high temperature off-gas preheating furnace system for silicon carbide smelting processes of claim 2, wherein: The movable block (18) and the fixed plate (17) are slidably connected, and the vertical cross-section of the movable block (18) is a "T" shaped structure.

8. The high temperature off-gas preheating furnace system for silicon carbide smelting process of claim 2, wherein: The clamping plate (19) is in close contact with the heat exchanger (6), and the clamping plate (19) is connected to the moving rod (20) through a bearing.

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