Capacitor furnace for producing electrically fused zirconia-corundum

Abstract

The utility model discloses a kind of capacitor furnace of electrically fused zirconia corundum production, belong to capacitor furnace field, including bottom plate, the top of the bottom plate is provided with connecting frame, connecting block is hinged in the middle of the connecting frame, the top of the connecting block is fixedly connected with water cooling tank, by setting servo motor start driving connecting rod rotation, because connecting plate two and connecting rod sleeve, connecting plate two and hinged plate two hinged, thrust drives long plate to move upwards, make water cooling tank around connecting block and the hinge fulcrum of connecting frame tilt, furnace shell is inclined with water cooling tank, so that water cooling tank around connecting block and the hinge shaft of connecting frame tilt, high viscosity melt in furnace under the double action of gravity and inclined thrust flows to discharge port to make inclined discharge to make melt flow rate promote, furnace body single discharge time is shortened, and inclination angle is adjustable, avoid melt to be left in furnace bottom corner, residual amount reduces, raw material waste reduces.

Description

Technical Field

[0001] This utility model relates to the field of capacitor furnace technology, specifically a capacitor furnace for producing fused zirconia corundum. Background Technology

[0002] Fused zirconia alumina, as a composite refractory material, is widely used in glass furnace linings, ceramic firing kiln furniture, metallurgical high-temperature containers and other fields due to its excellent high temperature resistance, erosion resistance and mechanical strength.

[0003] An investigation revealed that a utility model patent discloses a dual-chamber furnace for smelting waste aluminum capacitors (publication number: CN219869084U), comprising a pyrolysis melting chamber and a medium-frequency melting chamber. The pyrolysis melting chamber has a waste aluminum capacitor inlet and a flue gas outlet at its upper part, and an impurity outlet at its lower part. The medium-frequency melting chamber has an aluminum liquid outlet. An aluminum liquid rising channel is provided between the pyrolysis melting chamber and the medium-frequency melting chamber. The inlet of the aluminum liquid rising channel is located between the impurity outlet and the lowest liquid level of the pyrolysis melting chamber, and the outlet of the aluminum liquid rising channel is located in the medium-frequency melting chamber. An aluminum liquid reflux pipe and an aluminum liquid booster pump connected in series with the aluminum liquid reflux pipe are provided between the medium-frequency melting chamber and the pyrolysis melting chamber.

[0004] While the aforementioned patents can cleanly and efficiently recycle aluminum resources and reduce environmental pollution through the dual-chamber furnace design, the inability of the capacitor furnace to adjust the state of the molten material inside the furnace by rotation or tilting can easily lead to stratification, where high-density components sink and low-density components float. If the furnace body cannot rotate, the molten material relies solely on its own thermal convection for mixing, resulting in extremely low mixing efficiency. Traditional bottom discharge ports rely on the molten material's own gravity for flow, and the high viscosity characteristics result in extremely slow flow rates, while the molten material cools rapidly. If the flow rate is too slow, the material is prone to cooling and solidifying near the discharge port, forming blockages that require manual cleaning after shutdown.

[0005] Therefore, this utility model provides a capacitor furnace for the production of fused zirconia corundum to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides a capacitor furnace for the production of fused zirconium corundum, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: Preferably, the furnace includes a base plate, a connecting frame is provided directly above the base plate, a connecting block is hinged to the middle of the connecting frame, a water-cooled box is fixed to the top of the connecting block, a furnace shell is provided inside the water-cooled box and the outer surface of the furnace shell is fixed to the water-cooled box, a discharge pipe is fixed to the bottom of the furnace shell, a long plate and a fixed plate are provided on one side of the water-cooled box and the connecting frame, a hinge plate one and a hinge plate two are fixed to one end of the long plate and the fixed plate respectively, a connecting plate one and a connecting plate two are hinged to the middle of the hinge plate one and the hinge plate two respectively, a connecting rod is sleeved inside one end of the connecting plate two, a servo motor is fixed to one end of the connecting rod, and a dust collection device is provided directly above the furnace shell.

[0008] Preferably, the dust collection device includes an L-shaped frame, an exhaust fan is fixedly installed on the top of the L-shaped frame, an exhaust pipe is fixedly connected to the air inlet end of the exhaust fan, the end of the exhaust pipe away from the exhaust fan passes through the horizontal section of the L-shaped frame and extends to the inside of the vertical section of the L-shaped frame, and a negative pressure suction hood is fixedly connected to the end of the exhaust pipe, the opening of the negative pressure suction hood facing the volatile release area of ​​the furnace shell.

[0009] Preferably, a motor is provided on the top of the base plate, a rotating shaft is fixedly connected to the top of the motor, a horizontal plate is sleeved on the rotating shaft, and the top of the rotating shaft is fixedly connected to the connecting frame.

[0010] Preferably, the inner wall of the furnace shell is provided with a lightweight insulating brick layer, a high-alumina mullite brick layer and a corundum composite castable layer from the outside to the inside, and the adjacent two layers are tightly bonded together by a high-temperature refractory adhesive.

[0011] Preferably, a water inlet hole is provided on the top end face of the water-cooled box, and a water outlet hole is provided on the bottom end face of the water-cooled box. A water inlet pipe is fixedly connected in the water inlet hole, and a water outlet pipe is fixedly connected in the water outlet hole.

[0012] Preferably, a filter plate is fixedly connected to the bottom opening of the negative pressure suction hood, and a plurality of mounting through holes are evenly opened on the filter plate, and a high-temperature filter bag is fixedly connected to each of the mounting through holes.

[0013] Preferably, the bottom of the horizontal plate is fixedly connected to multiple support columns.

[0014] (III) Beneficial Effects 1. In this utility model, after the servo motor is started, it drives the connecting rod to rotate. Since the second connecting plate is sleeved with the connecting rod and the second connecting plate is hinged with the second hinge plate, the thrust drives the long plate to move upward, causing the water-cooled box to tilt around the hinge fulcrum of the connecting block and the connecting frame. The furnace shell tilts with the water-cooled box, causing the water-cooled box to tilt around the hinge axis of the connecting block and the connecting frame. Under the dual action of gravity and tilting thrust, the high-viscosity melt in the furnace flows towards the discharge port, causing the tilted discharge to increase the flow rate of the melt, shortening the single discharge time of the furnace body, and the tilting angle can be adjusted to avoid the melt remaining in the corner of the furnace bottom, reducing the amount of residue and reducing raw material waste.

[0015] 2. In this utility model, after the exhaust fan is started, a negative pressure is formed in the exhaust pipe and the negative pressure suction hood. The dust volatilized from the furnace shell and furnace mouth is sucked into the negative pressure suction hood by the negative pressure, which reduces the dust concentration in the workshop and avoids health problems caused by operators inhaling dust. The negative pressure suction hood is directly facing the source of volatile release, with high collection efficiency and does not affect other operations of the furnace. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the dust removal component in this utility model; Figure 3 This is a schematic diagram of the tilting component in this utility model; Figure 4 This is a schematic diagram of the anti-corrosion component in this utility model.

[0017] In the picture: 1. Base plate; 101. Connecting frame; 102. Connecting block; 103. Water-cooled box; 104. Furnace shell; 105. Long plate; 106. Fixing plate; 107. Hinge plate one; 108. Hinge plate two; 109. Connecting plate one; 110. Connecting plate two; 111. Servo motor; 2. L-shaped frame; 201. Exhaust fan; 202. Exhaust pipe; 203. Negative pressure suction hood; 3. Motor; 301. Rotating shaft; 302. Horizontal plate; 4. Lightweight thermal insulation brick layer; 401. High-alumina mullite brick layer; 402. Corundum composite castable layer; 5. Water inlet pipe; 501. Water outlet pipe; 6. Filter plate; 601. High-temperature filter bag; 7. Support column. Detailed Implementation

[0018] 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.

[0019] This utility model provides a capacitor furnace for the production of fused zirconium corundum, such as... Figure 1-4 As shown, the system includes a base plate 1, a connecting frame 101 positioned directly above the base plate 1, a connecting block 102 hinged to the middle of the connecting frame 101, a water-cooled box 103 fixedly connected to the top of the connecting block 102, a furnace shell 104 housed inside the water-cooled box 103, and the outer surface of the furnace shell 104 fixedly connected to the water-cooled box 103, a discharge pipe fixedly connected to the bottom of the furnace shell 104, a long plate 105 and a fixing plate 106 positioned on one side of the water-cooled box 103 and the connecting frame 101, and one end of the long plate 105 and the fixing plate 106 respectively fixedly The furnace is equipped with hinge plate 107 and hinge plate 108. Connecting plate 109 and connecting plate 110 are respectively hinged to the middle portions of hinge plate 107 and hinge plate 108. A connecting rod is sleeved inside one end of connecting plate 110, and a servo motor 111 is fixed to one end of the connecting rod. A dust collection device is installed directly above the furnace shell 104. During operation, because the capacitor furnace cannot adjust the state of the molten material inside the furnace by rotation or tilting, stratification, where high-density components sink and low-density components float, easily occurs. If the furnace... The body cannot rotate, and the molten material relies solely on its own thermal convection for mixing, resulting in extremely low mixing efficiency. Traditional bottom outlets rely on the molten material's own gravity to flow out, and the high viscosity characteristics lead to extremely slow flow rates, while the molten material cools rapidly. If the flow rate is too slow, it is easy for the material to cool and solidify near the outlet, forming a blockage that requires manual cleaning after machine shutdown. By setting the servo motor 111 to start and drive the connecting rod to rotate, and because the connecting plate 110 is sleeved with the connecting rod and hinged with the hinge plate 108, the thrust drives the long plate 105 upward. The movement causes the water-cooled box 103 to tilt around the hinge fulcrum of the connecting block 102 and the connecting frame 101. The furnace shell 104 tilts with the water-cooled box 103, causing the water-cooled box 103 to tilt around the hinge axis of the connecting block 102 and the connecting frame 101. Under the combined action of gravity and tilting thrust, the high-viscosity melt inside the furnace flows towards the discharge port, causing the tilted discharge to increase the flow rate of the melt. The single discharge time of the furnace body is shortened, and the tilting angle can be adjusted to avoid the melt remaining in the corner of the furnace bottom, thus reducing the amount of residue and reducing raw material waste.

[0020] like Figure 1 and Figure 2As shown, the dust collection device includes an L-shaped frame 2. An exhaust fan 201 is fixedly installed on the top of the L-shaped frame 2. An exhaust pipe 202 is fixedly connected to the air inlet end of the exhaust fan 201. The end of the exhaust pipe 202 away from the exhaust fan 201 passes through the horizontal section of the L-shaped frame 2 and extends to the inside of the vertical section of the L-shaped frame 2. A negative pressure suction hood 203 is fixedly connected to the end of the exhaust pipe 202. The opening of the negative pressure suction hood 203 faces the volatile release area of ​​the furnace shell 104. During operation, after the exhaust fan 201 is started, a negative pressure is formed in the exhaust pipe 202 and the negative pressure suction hood 203. The dust volatilized from the furnace opening of the furnace shell 104 is sucked into the negative pressure suction hood 203 by the negative pressure, thereby reducing the dust concentration in the workshop and preventing operators from inhaling dust and causing health problems. The negative pressure suction hood 203 is directly facing the volatile release source, with high collection efficiency and does not affect other operations of the furnace.

[0021] like Figure 1 As shown, a motor 3 is installed on the top of the base plate 1. A rotating shaft 301 is fixedly connected to the top of the motor 3. A horizontal plate 302 is fitted over the rotating shaft 301. The top of the rotating shaft 301 is fixedly connected to the connecting frame 101. During operation, the rotating shaft 301 is driven to rotate by the motor 3. The rotating shaft 301 drives the connecting frame 101, the connecting block 102 and the water cooling box 103 to rotate synchronously, thereby improving the mixing efficiency of the melt.

[0022] like Figure 1 As shown, the inner wall of the furnace shell 104 is provided with a lightweight insulating brick layer 4, a high-alumina mullite brick layer 401, and a corundum composite castable layer 402 from the outside to the inside. The adjacent two layers are tightly bonded together by a high-temperature refractory adhesive. During operation, the composite gradient structure of the inner wall of the furnace shell 104, which is provided with the lightweight insulating brick layer 4, the high-alumina mullite brick layer 401, and the corundum composite castable layer 402 from the outside to the inside, improves the erosion resistance of the furnace lining, extends its service life, reduces the number of downtime maintenance, and lowers the annual maintenance cost.

[0023] like Figure 1 As shown, a water inlet hole is provided on the top end face of the water-cooled box 103, and a water outlet hole is provided on the bottom end face of the water-cooled box 103. A water inlet pipe 5 is fixedly connected in the water inlet hole, and a water outlet pipe 501 is fixedly connected in the water outlet hole. During operation, by setting the water outlet hole on the bottom end face of the water-cooled box 103 and the water inlet pipe 5 fixedly connected in the water inlet hole, the water cooling stabilizes the temperature of the furnace shell 104, preventing the stainless steel furnace shell 104 from deforming or rusting due to high temperature, extending the service life of the furnace shell 104, and forming a dual cooling and heat insulation system with the composite insulation layer of the furnace lining, further reducing heat loss and improving the overall energy efficiency of the capacitor furnace.

[0024] like Figure 1As shown, a filter plate 6 is fixedly connected to the bottom opening of the negative pressure suction hood 203. Multiple installation through holes are evenly opened on the filter plate 6, and a high-temperature filter bag 601 is fixedly connected in each installation through hole. During operation, the dust passes through the deep filtration of the high-temperature filter bag 601 and is trapped in the filter bag. The clean air is discharged by the exhaust fan 201. The recovered dust can be reused for raw material proportioning, so that dust can be recovered every year, reducing the cost of raw material procurement, and avoiding environmental pollution caused by dust emissions.

[0025] like Figure 1 As shown, multiple support columns 7 are fixedly connected to the bottom of the horizontal plate 302. During operation, by setting multiple support columns 7 to be fixedly connected to the bottom of the horizontal plate 302, a stable support is provided for the entire rotating structure, preventing it from shaking or falling off.

[0026] Working Principle: Because the state of the molten material inside the capacitor furnace cannot be adjusted by rotation or tilting, stratification easily occurs, with high-density components sinking and low-density components floating. If the furnace body cannot rotate, the molten material relies solely on its own thermal convection for mixing, resulting in extremely low mixing efficiency. Traditional bottom discharge ports rely on the molten material's own gravity for flow, and the high viscosity leads to extremely slow flow rates, while the molten material cools rapidly. If the flow rate is too slow, it easily cools and solidifies near the discharge port, forming a blockage that requires manual cleaning after shutdown. By setting a servo motor 111 to start and drive the connecting rod to rotate, and because the connecting plate 110 is sleeved with the connecting rod and hinged to the hinge plate 108, the thrust drives the long plate 105 upwards, causing the water-cooled box 103 to rotate around the connecting block. The hinge fulcrum of the connecting block 102 and the connecting frame 101 is tilted, and the furnace shell 104 tilts with the water-cooled box 103, causing the water-cooled box 103 to tilt around the hinge axis of the connecting block 102 and the connecting frame 101. Under the combined action of gravity and tilting thrust, the high-viscosity molten material inside the furnace flows towards the discharge port, causing the tilted discharge to increase the flow rate of the molten material, shortening the single discharge time of the furnace body, and the tilting angle is adjustable, avoiding the molten material remaining in the corner of the furnace bottom, reducing the amount of residue, and reducing raw material waste. After the exhaust fan 201 is started, a negative pressure is formed in the exhaust pipe 202 and the negative pressure suction hood 203. The dust volatilized from the furnace mouth of the furnace shell 104 is sucked into the negative pressure suction hood 203 by the negative pressure, thereby reducing the dust concentration in the workshop and preventing operators from inhaling dust and causing accidents. For health-related issues, the negative pressure suction hood 203 is directly facing the volatile release source, ensuring high collection efficiency without affecting other furnace operations. A motor 3 drives the rotating shaft 301 to rotate, which in turn drives the connecting frame 101, connecting block 102, and water-cooled box 103 to rotate synchronously, improving the mixing efficiency of the molten material. The inner wall of the furnace shell 104 is constructed with a lightweight insulating brick layer 4, a high-alumina mullite brick layer 401, and a corundum composite castable layer 402, arranged sequentially from the outside to the inside. This composite gradient structure enhances the furnace lining's erosion resistance, extends its service life, reduces downtime maintenance, and lowers annual maintenance costs. A water outlet hole is provided on the bottom end face of the water-cooled box 103, and an inlet valve is fixedly connected within the water inlet hole. Water pipe 5 ensures water cooling, stabilizing the temperature of the furnace shell 104 and preventing deformation and corrosion of the stainless steel furnace shell 104 due to high temperatures, thus extending the service life of the furnace shell 104. Together with the composite insulation layer of the furnace lining, it forms a dual cooling and insulation system, further reducing heat loss and improving the overall energy efficiency of the capacitor furnace. By setting up a deep filtration system for dust through a high-temperature filter bag 601, the dust is trapped inside the filter bag, and clean air is discharged through the exhaust fan 201. The recovered dust can be reused for raw material proportioning, enabling annual dust recycling, reducing raw material procurement costs, and avoiding environmental pollution caused by dust emissions. By setting up a horizontal plate 302 with multiple support columns 7 fixed to the bottom, it provides stable support for the entire rotating structure, preventing it from shaking or falling off.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A capacitor furnace for producing fused zirconium corundum, comprising a base plate (1), characterized in that: A connecting frame (101) is provided directly above the base plate (1). A connecting block (102) is hinged to the middle of the connecting frame (101). A water-cooled box (103) is fixed to the top of the connecting block (102). A furnace shell (104) is provided inside the water-cooled box (103), and the outer surface of the furnace shell (104) is fixed to the water-cooled box (103). A discharge pipe is fixed to the bottom of the furnace shell (104). A long plate (105) is provided on one side of the water-cooled box (103) and the connecting frame (101). The long plate (105) and the fixed plate (106) are respectively fixedly connected to one end of the fixed plate (106) and the hinge plate one (107) and the hinge plate two (108). The middle parts of the hinge plate one (107) and the hinge plate two (108) are respectively hinged to the connecting plate one (109) and the connecting plate two (110). A connecting rod is sleeved inside one end of the connecting plate two (110), and a servo motor (111) is fixedly connected to one end of the connecting rod. A dust collection device is provided directly above the furnace shell (104).

2. A capacitor furnace for the production of an electrically fused zirconia-corundum according to claim 1, characterized in that The dust collection device includes an L-shaped frame (2), on the top of which an exhaust fan (201) is fixedly installed. An exhaust pipe (202) is fixedly connected to the air inlet end of the exhaust fan (201). The end of the exhaust pipe (202) away from the exhaust fan (201) passes through the horizontal section of the L-shaped frame (2) and extends to the inside of the vertical section of the L-shaped frame (2). A negative pressure suction hood (203) is fixedly connected to the end of the exhaust pipe (202). The opening of the negative pressure suction hood (203) faces the volatile release area of ​​the furnace shell (104).

3. A capacitor furnace for the production of an electrically fused zirconia-corundum according to claim 1, characterized in that A motor (3) is provided on the top of the base plate (1), and a rotating shaft (301) is fixedly connected to the top of the motor (3). A horizontal plate (302) is fitted over the rotating shaft (301), and the top of the rotating shaft (301) is fixedly connected to the connecting frame (101).

4. The capacitor furnace for production of an electrically fused zirconia-corundum according to claim 1, characterized in that: The inner wall of the furnace shell (104) is provided with a lightweight insulating brick layer (4), a high-alumina mullite brick layer (401) and a corundum composite castable layer (402) from the outside to the inside. The adjacent two layers are tightly bonded together by a high-temperature refractory adhesive.

5. A capacitor furnace for the production of an electrically fused zirconia-corundum according to claim 1, characterized in that The water-cooled box (103) has a water inlet hole on its top end face and a water outlet hole on its bottom end face. A water inlet pipe (5) is fixedly connected in the water inlet hole and a water outlet pipe (501) is fixedly connected in the water outlet hole.

6. A capacitor furnace for the production of an electrically fused zirconia-corundum according to claim 2, characterized in that A filter plate (6) is fixedly connected to the bottom opening of the negative pressure suction hood (203). Multiple installation through holes are evenly opened on the filter plate (6), and a high temperature filter bag (601) is fixedly connected in each of the installation through holes.

7. A capacitor furnace for the production of an electrically fused zirconia-corundum according to claim 3, characterized in that The bottom of the horizontal plate (302) is fixed with multiple support columns (7).

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