Deslagging mechanism of melting purification furnace

Abstract

The utility model discloses a deslagging mechanism of a melting purification furnace. The deslagging mechanism comprises a cut-off device (1), a rectangular support (2), a cantilever device (3), a first lever (4), a second lever (5), a cross joint (7), a deslagging chute (12) and a furnace body (32), the cut-off device (1) is fixed on a furnace cover of a furnace body (32) through a rectangular support (2), the suspension wall device (3) is fixed on the upper side of the furnace body (32), the first lever (4) is movably connected in the suspension wall device (3), the first lever (4) is connected with the second lever (5) through a first pin shaft (19), and the second lever (5) is movably connected with the cut-off device (1) through a cross joint (7). And the risks of explosion, personnel scalding, tail gas pollution and the like caused by the fact that water is brought into the furnace in the traditional slag grabbing type operation are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal smelting, and particularly relates to a slag discharging mechanism of a melting and purifying furnace. Background Art

[0002] In the metal smelting industry, molten salt furnaces are widely used in industries such as metallurgy, chemical engineering, and building materials. Molten salt furnaces melt solid inorganic salts or impure metals at high temperatures to produce various metal materials, alloys, glass and other products. Generally, there are three heating methods for molten salt furnaces: electric heating, gas heating and flame heating. However, during the high-temperature melting process, a small amount of sludge (oxides or high-melting-point impurities) will be generated and need to be separated.

[0003] In the related art, a slag-grabbing operation is adopted to clean the sludge in the molten salt furnace, that is, a grab bucket is extended into the bottom of the molten salt to grab the slag mud and then taken out for external discharge. This operation method has many problems and risks. First, if the grab bucket is not fully dried, the water in it comes into contact with the high-temperature melt in the furnace, and an explosion may occur, seriously threatening the safety of operators. Second, during the slag-grabbing process, personnel are at risk of being scalded by splashing high-temperature molten salt. In addition, opening the molten salt furnace cover for the grab bucket to grab slag will cause the exhaust gas discharged from the furnace to pollute the operating environment.

[0004] Therefore, how to effectively solve the problems of difficult slag discharging and high risk of molten salt furnaces is the key issue concerned by those skilled in the art. Content of the Utility Model

[0005] To solve the problems existing in the prior art, the utility model provides a slag discharging mechanism of a melting and purifying furnace, which solves the problems of difficult slag discharging and high risk of molten salt furnaces.

[0006] To achieve the purpose of the utility model, the following technical scheme is adopted for a slag discharging mechanism of a melting and purifying furnace, including: a truncation device, a rectangular support, a cantilever device, a first lever, a second lever, a cross joint, a slag discharging chute, and a furnace body; the truncation device is fixed on the furnace cover of the furnace body by the rectangular support, the cantilever device is fixed on the upper side of the furnace body, the first lever is movably connected in the cantilever device, the first lever is connected to the second lever through the first pin shaft, and the second lever is movably connected to the truncation device through the cross joint.

[0007] Optionally, the truncation device includes: a swing rod, a tail rod, a flange, a valve rod, and a plug; the swing rod is movably connected to one end of the tail rod, the tail rod is connected to the valve rod through the flange, and the plug is fixed to one end of the valve rod; when the swing rod rotates, it drives the valve rod and the plug to rotate.

[0008] Optionally, the rectangular support includes: an upper cover plate, side support rods, positioning rods, and a bottom rod; the upper cover plate is connected to the top ends of the side support rods, the top end of the bottom rod is connected to the lower ends of the side support rods, and the positioning rods are fixed between the two bottom rods; wherein, the plug at the lower end of the valve rod and the center line of the base hole are on the same vertical line, and the upper cover plate is arranged on the furnace cover of the furnace body.

[0009] Optionally, the cantilever device includes: a support plate, a bottom plate, and an insulating plate. The support plate is fixed above the bottom plate. The bottom plate is connected to the insulating plate, and the insulating plate and the bottom plate are fixed with bolts. The support plate is connected through the second pin shaft.

[0010] Optionally, the first lever includes: a support rod, a clamping plate, a first connecting plate, a first fork-shaped part, and a second pin shaft; the first fork-shaped part is sleeved on one end of the first connecting plate, the first connecting plate is inserted into the clamping plate and fixed, the support rod is fixedly connected to one end of the clamping plate, and the support rod is movably connected to the second lever through the second pin shaft.

[0011] Optionally, the second lever includes: a vertical plate, a first pin shaft, a second connecting plate, and a second fork-shaped part; the vertical plate and the second fork-shaped part are connected by the second connecting plate, and the first pin shaft movably connects the vertical plate and the second connecting plate.

[0012] Optionally, the slag discharge chute includes: a main body hole and a base hole. The main body hole is made of carbon steel and is embedded in the refractory bricks on the bottom surface of the furnace body. The base hole is arranged at the tail of the slag discharge chute.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the cooperation of the first lever and the second lever, during operation, the truncation device is moved up or down to realize the on-off and opening of the slag discharge chute, so that the slag can be effectively discharged, avoiding the use of a gripper for slag discharge operation, effectively solving the problems of difficult slag discharge and high risk in the molten salt furnace, and avoiding the risks such as water being brought into the furnace causing explosion, personnel scalding, and tail gas pollution existing in the traditional slag-gripping operation. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a slag discharge mechanism of a melting and purification furnace provided by an embodiment of the present application;

[0016] In the figure: cutting device - 1, rectangular support - 2, cantilever device - 3, first lever - 4, second lever - 5, swing rod - 6, cross joint - 7, flange - 8, tail rod - 9, insulating plate - 10, plug - 11, slag discharge chute - 12, valve seat - 13, support rod - 14, splint - 15, first connecting plate - 16, first fork - shaped part - 17, vertical plate - 18, first pin shaft - 19, second connecting plate - 20, second fork - shaped part - 21, support plate - 22, second pin shaft - 23, bottom plate - 24, valve rod - 25, matrix hole - 26, upper cover plate - 27, side support rod - 28, bottom rod - 29, positioning rod - 30, main body hole - 31, furnace body - 32. Detailed implementation mode

[0017] To solve the problems existing in the prior art, the utility model provides a slag discharge mechanism for a melting and purification furnace, and this device solves the problems of difficult slag discharge and high risk in a molten salt furnace.

[0018] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model:

[0019] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a slag discharge mechanism for a melting and purification furnace provided by an embodiment of the present application.

[0020] In this embodiment, the device may include:

[0021] Cutting device 1, rectangular support 2, cantilever device 3, first lever 4, second lever 5, cross joint 7, slag discharge chute 12, furnace body 32; the cutting device 1 is fixed to the furnace cover of the furnace body 32 by the rectangular support 2, the cantilever device 3 is fixed on the upper side of the furnace body 32, the first lever 4 is movably connected in the cantilever device 3, the first lever 4 is connected to the second lever 5 through the first pin shaft 19, and the second lever 5 is movably connected to the cutting device 1 through the cross joint 7.

[0022] Among them, the slag discharge mechanism is composed of multiple parts, including: the cutting device 1 is responsible for controlling the discharge of materials, and is fixed on the molten salt furnace cover through the rectangular support 2 to ensure its stability. The cantilever device 3 provides a fixed support for the first lever 4 to enable it to work stably. The first lever 4 and the second lever 5 are connected by the first pin shaft 19 to realize the transmission and conversion of force. The second lever 5 is connected to the cutting device 1 through the cross joint 7, making the operation more flexible. The slag discharge chute 12 is used to guide the discharge of slag mud. It can be seen that this structural design enables the components of the slag discharge mechanism to cooperate with each other and work together to achieve the function of slag discharge. The connection methods of each component are simple and reliable, easy to install and maintain, and reduce the maintenance cost of the equipment.

[0023] Further, the truncation device 1 includes: a swing rod 6, a tail rod 9, a flange 8, a valve stem 25, and a plug 11; the swing rod 6 is movably connected to one end of the tail rod 9, the tail rod 9 is connected to the valve stem 25 through the flange 8, and the plug 11 is fixed to one end of the valve stem 25; when the swing rod 6 rotates, it drives the valve stem 25 and the plug 11 to rotate.

[0024] Among them, the main components of the truncation device 1 include a plug 11, a valve stem 25, a tail rod 9, a flange 8, a cross joint 7, and a swing rod 6. The swing rod 6 is connected to the tail rod 9. When the swing rod 6 moves left and right, it drives the tail rod 9 to rotate, and then the valve stem 25 and the plug 11 also rotate accordingly. By precisely controlling the movement of the swing rod 6, the plug 11 can be accurately inserted into the valve seat 13, thereby blocking the material entering the matrix hole 26, accurately controlling the insertion and extraction of the plug 11, effectively blocking the material, ensuring the accuracy and reliability of slag discharge, avoiding material leakage, and improving the efficiency and quality of slag discharge.

[0025] Further, the rectangular support 2 includes: an upper cover plate 27, side support rods 2814, a positioning rod 30, and a bottom rod 29; the upper cover plate 27 is connected to the top ends of the side support rods 2814, the top end of the bottom rod 29 is connected to the lower ends of the side support rods 2814, and the positioning rod 30 is fixed between the two bottom rods 29; among them, the plug 11 at the lower end of the valve stem 25 and the center line of the matrix hole 26 are located on the same vertical line, and the upper cover plate 27 is arranged on the furnace cover of the furnace body 32.

[0026] Among them, the rectangular support 2 is composed of an upper cover plate 27, side support rods 2814, a positioning rod 30, and a bottom rod 29, forming a stable rectangular frame structure. This rectangular frame serves as the support frame of the entire slag discharge system, ensuring that the center line of the plug 11 at the lower end of the valve stem 25 is accurately aligned with the center line of the matrix hole 26, and guaranteeing the smooth progress of the slag discharge process. At the same time, the upper cover plate 27 is placed on the molten salt furnace cover, capable of bearing the weight of the entire system, enabling the system to be stably installed on the molten salt furnace, ensuring the stability and reliability of the slag discharge system, keeping the center line of the plug 11 consistent with the center line of the matrix hole 26, ensuring the accuracy and smoothness of the slag discharge process, effectively supporting the weight of the entire system, avoiding system deformation or damage caused by gravity, and extending the service life of the equipment.

[0027] Further, the cantilever device 3 includes: a support plate 22, a bottom plate 24, and an insulating plate 10. The support plate 22 is fixed above the bottom plate 24. The bottom plate 24 is connected to the insulating plate 10, and the insulating plate 10 is fixed to the bottom plate 24 with bolts. The support plate 22 is connected through a second pin shaft 23.

[0028] Among them, the cantilever device 3 is composed of a support plate 22, a second pin shaft 23, a bottom plate 24, and an insulating plate 10. The support plate 22 is located above the bottom plate 24 and is used to support other components. The insulating plate 10 is arranged below the bottom plate 24 and is fixedly connected to the bottom plate 24 by bolts. The function of the insulating plate 10 is to prevent current conduction and avoid safety accidents such as electric shock. The cantilever device 3 provides a stable fixed support for the first lever 4, ensuring that the first lever 4 can work properly.

[0029] Further, the first lever 4 includes: a support rod 14, a clamping plate 15, a first connecting plate 16, a first fork-shaped member 17, and a second pin shaft 23; the first fork-shaped member 17 is sleeved on one end of the first connecting plate 16, the first connecting plate 16 is inserted into the clamping plate 15 and fixed, the support rod 14 is fixedly connected to one end of the clamping plate 15, and the support rod 14 is movably connected to the second lever 5 through the second pin shaft 23.

[0030] Among them, the first lever 4 is composed of a support rod 14, a clamping plate 15, a first connecting plate 16, and a first fork-shaped member 17. The first fork-shaped member 17 is sleeved on the first connecting plate 16, and the first connecting plate 16 is inserted into the clamping plate 15 and fixed, making the connection between the components tight. The support rod 14 is connected to the second lever 5 through the second pin shaft 23, realizing the linkage between the two lever devices. Through the connection with the second lever 5, the first lever 4 realizes the effective transmission and conversion of force, enabling the operator to easily control the operation of the slag discharge mechanism. This design reduces the labor intensity and improves the convenience of the slag discharge operation.

[0031] Further, the second lever 5 includes: a vertical plate 18, a first pin shaft 19, a second connecting plate 20, and a second fork-shaped member 21; the vertical plate 18 is connected to the second fork-shaped member 21 by the second connecting plate 20, and the first pin shaft 19 movably connects the vertical plate 18 and the second connecting plate 20.

[0032] Among them, the second lever 5 is composed of a vertical plate 18, a first pin shaft 19, a second connecting plate 20, and a second fork-shaped member 21. The vertical plate 18 and the second fork-shaped member 21 are connected together by the second connecting plate 20 to form a stable structure. The first pin shaft 19 is used to connect the first lever 4 and the second lever 5, enabling the two lever devices to work together. The second lever 5 cooperates with the first lever 4 to jointly control the operation of the slag discharge mechanism. Through reasonable design and connection, the flexibility and efficiency of the slag discharge operation are improved, making the slag discharge process smoother.

[0033] Further, the slag discharge chute 12 includes: a main body hole 31 and a matrix hole 26. The main body hole 31 is made of carbon steel and is embedded in the refractory brick at the bottom of the furnace body 32. The matrix hole 26 is arranged at the tail of the slag discharge chute 12.

[0034] Among them, the slag discharge chute 12 is composed of a main body hole 31 and a matrix hole 26. The main body hole 31 is made of carbon steel and is embedded in the refractory brick at the bottom of the molten salt furnace, having good heat resistance and stability. The matrix hole 26 is designed at the tail. When the plug 11 is lowered, it can cooperate with the matrix hole 26 to cut off the flow of materials and achieve the control of slag discharge. The material and embedding method of the main body hole 31 ensure the stability and durability of the slag discharge chute 12, enabling it to withstand the test of high-temperature environment. The design of the matrix hole 26 enables the plug 11 to effectively cut off the materials, achieving precise control of slag discharge and improving the slag discharge effect.

[0035] During use, first drain the excess supernatant in the molten salt furnace in advance, and leave a molten layer with a height of 200 mm - 300 mm above the sludge. Pass dry compressed air through the steel pipe connected by a hose into the air through the window on the molten salt furnace lid and stir the sludge, and place a steel slag pan that has been cleaned and preheated and dried under the main body hole 31. Then move the swing rod 6 in a circumferential direction left and right several times, synchronously driving the tail rod 9 and the valve rod 25 to rotate. At the same time, the plug 11 will also rotate to loosen the slag mud on the plug 11. Then manually grasp the first fork-shaped part 17 of the first lever 4 and raise the valve rod 25 of the first lever 4. The first pin shaft 19 at the triangular end of the handle rotates, and the second connecting plate 20 of the second lever 5 will be lifted. Since the left end of the second lever 5 is fixed on the fixed support, when the second lever 5 is lifted, the right end second connecting plate 20 of the second lever 5 will move upward. Since the second connecting plate 20 at the right end of the second lever 5 is connected to the cross joint 7, the cross joint 7 moves upward at the same time, and then the valve rod 25 is lifted. The plug 11 at the bottom of the valve rod 25 separates from the valve seat 13, the plug 11 is lifted away from the valve seat 13, the matrix hole 26 communicates with the main body hole 31, and the sludge at the bottom of the molten salt furnace will be discharged from the matrix hole 26 into the main body hole 31 and then into the slag pan, and thus the slag discharge operation is carried out.

[0036] When the slag discharge is completed, close the dry compressed air valve, remove the bubbling tube, loosen the handle of the first lever 4, and the second lever 5 will fall back due to the gravity of the valve rod 25. The plug 11 and the valve seat 13 are closed again, the plug 11 enters the valve seat 13, and the slag discharge channel is cut off.

[0037] The main body of this embodiment is made of carbon steel, which can be applied to the slag discharge of various melting furnaces, and is particularly suitable for the discharge of materials and sludge in high-temperature molten salt furnaces below 820°C. Its slag discharge is convenient, fast, and environmentally friendly, with low labor intensity, high safety factor for personnel operation, simple equipment structure, and wide application range.

[0038] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, making equivalent replacements or changes, should be covered by the protection scope of the present utility model.

Claims

1. A slag discharge mechanism for a melting and purification furnace, characterized in that: include: A cut-off device (1), a rectangular support (2), a cantilever device (3), a first lever (4), a second lever (5), a cross joint (7), a slag discharge chute (12), and a furnace body (32); the cut-off device (1) is fixed to the furnace cover of the furnace body (32) by the rectangular support (2), the cantilever device (3) is fixed to the upper side of the furnace body (32), the first lever (4) is movably connected to the cantilever device (3), the first lever (4) is connected to the second lever (5) via a first pin shaft (19), and the second lever (5) is movably connected to the cut-off device (1) via a cross joint (7).

2. The slag discharge mechanism according to claim 1, characterized in that: The shutoff device (1) comprises: a swing rod (6), a tail rod (9), a flange (8), a valve stem (25), and a plug (11); the swing rod (6) is movably connected to one end of the tail rod (9), the tail rod (9) is connected to the valve stem (25) via the flange (8), and the plug (11) is fixed to one end of the valve stem (25); when the swing rod (6) rotates, the valve stem (25) and the plug (11) are driven to rotate.

3. The slag discharge mechanism according to claim 2, characterized in that: The rectangular support (2) comprises: an upper cover plate (27), a side support rod (28), a positioning rod (30), and a bottom rod (29); the upper cover plate (27) is connected to the top end of the side support rod (28), the top end of the bottom rod (29) is connected to the lower end of the side support rod (28), and the positioning rod (30) is fixed between the two bottom rods (29); wherein the plug (11) at the lower end of the valve stem (25) and the center line of the base hole (26) are located on the same vertical line, and the upper cover plate (27) is arranged on the furnace cover of the furnace body (32).

4. The slag discharge mechanism according to claim 3, characterized in that: The cantilever device (3) comprises: a support plate (22), a bottom plate (24), and an insulating plate (10); the support plate (22) is fixed above the bottom plate (24); the bottom plate (24) is connected to the insulating plate (10); and the insulating plate (10) and the bottom plate (24) are fixed by bolts.

5. The slag discharge mechanism according to claim 4, characterized in that: The first lever (4) comprises: a support rod (14), a clamping plate (15), a first connecting plate (16), a first fork-shaped piece (17), and a second pin shaft (23); the first fork-shaped piece (17) is sleeved on one end of the first connecting plate (16), the first connecting plate (16) is inserted into the clamping plate (15) and fixed, the support rod (14) is fixedly connected to one end of the clamping plate (15), and the support rod (14) is movably connected to the second lever (5) via the second pin shaft (23).

6. The slag discharge mechanism according to claim 5, characterized in that: The second lever (5) comprises: a vertical plate (18), a first pin shaft (19), a second connecting plate (20), and a second fork-shaped member (21); the vertical plate (18) and the second fork-shaped member (21) are connected by the second connecting plate (20), and the first pin shaft (19) movably connects the vertical plate (18) and the second connecting plate (20).

7. The slag discharge mechanism according to claim 6, characterized in that: The slag discharge chute (12) comprises: a main body hole (31) and a base hole (26); the main body hole (31) is made of carbon steel and is embedded in the heat-resistant bricks on the bottom surface of the furnace body (32); the base hole (26) is arranged at the tail of the slag discharge chute (12).

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