Plastic extrusion device for repairing intermediate frequency furnace lining

Abstract

The utility model discloses a plastic extrusion mud device is used in the lining of intermediate frequency furnace and is repaired, including base, fixed mounting has the stirring drum and extrusion mud cylinder on the base, fixed communication has vacuum tank between the stirring drum and extrusion mud cylinder, the top of stirring drum is fixedly installed and has the feeding frame, fixed mounting has vacuum pump on the vacuum tank. The utility model discloses through setting baffle, roof and drive assembly, when, when the plastic material is transported to the vacuum tank from the stirring drum, needs to extract vacuum, the staff can make the roof drive baffle move downward through drive assembly, thereby can make baffle block up the discharge port of stirring drum, avoid the air from the slit of stirring vane and plastic material in stirring drum and enter, thereby has promoted the leakproofness of vacuum tank, and then does not need vacuum pump continuous operation to keep the vacuum level in vacuum tank, has reduced energy consumption, has promoted the operation stability of vacuum pump and its durability.

Description

Technical Field

[0001] This utility model relates to the technical field of refractory plastic production equipment, and more specifically, to a plastic extrusion device for repairing the lining of a medium-frequency furnace. Background Technology

[0002] The main components of plastics used for repairing medium-frequency furnaces typically include high-purity corundum-based oxides, plastic clay and other binders, as well as appropriate amounts of plasticizers. These components need to be proportioned, mixed and extruded to form a refractory material with excellent performance. This material usually has high plasticity and can maintain its shape stability for a long time.

[0003] However, existing technologies have some problems: Vacuuming is a crucial step before the plastic material enters the extrusion molding stage after mixing. This step effectively reduces air bubbles inside the material, thereby improving its density and uniformity. In some existing plastic extrusion devices, the vacuum chamber is located at the junction of the mixing drum and the extrusion drum. However, there are large gaps between the mixing blades in the mixing drum, making it difficult for the material inside the drum to seal these gaps. Especially, materials that haven't been fully mixed will always have some gaps in the mixing drum. Because the chambers are interconnected, air leakage always occurs at the mixing drum during vacuuming, indirectly leading to a decrease in the sealing performance of the vacuum chamber. To maintain the required vacuum level, the vacuum pump must operate continuously, which not only significantly increases energy consumption but may also adversely affect the stable operation and durability of the vacuum pump. Therefore, we propose a plastic extrusion device for repairing the lining of a medium-frequency furnace. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a plastic extrusion device for repairing the lining of a medium-frequency furnace.

[0005] According to a first aspect of this utility model, a plastic extrusion sludge device for repairing the lining of a medium-frequency furnace is provided, comprising a base, on which a mixing drum and an extrusion drum are fixedly installed, a vacuum chamber is fixedly connected between the mixing drum and the extrusion drum, a feeding frame is fixedly installed on the top of the mixing drum, a vacuum pump is fixedly installed on the vacuum chamber, a baffle is movably inserted into the top of the vacuum chamber, the bottom end of the baffle extends into the interior of the vacuum chamber, a top plate is fixedly installed on the top of the baffle, and the top plate is connected to the vacuum chamber through a drive assembly, the top plate being able to drive the baffle downward to block the discharge port of the mixing drum through the drive assembly.

[0006] Optionally, the drive assembly includes a brake motor, which is fixedly mounted on the top of the vacuum chamber. The output shaft of the brake motor is connected to a rotating shaft via a coupling. The other end of the rotating shaft is fixedly connected to a connecting rod. A square groove is provided on the top plate, and a round block located inside the square groove is fixedly mounted on the connecting rod.

[0007] Optionally, partitions are movably inserted into both sides of the vacuum chamber, and the partitions are connected to the top plate via a transmission assembly.

[0008] Optionally, the transmission assembly includes a vertical rod and a swing rod. The vertical rod is fixedly installed on the top plate, and the swing rod is rotatably connected to the vacuum chamber. A groove is provided on the swing rod, and a first slider is fixedly installed on the vertical rod. The other end of the first slider extends into the groove, and a second slider located inside the groove is fixedly installed on the partition plate.

[0009] Optionally, the diameter of the circular block is adapted to the width of the square groove, and the inner wall of the square groove is coated with a lubricating layer.

[0010] Optionally, a gasket is fixedly installed at the bottom of the top plate, and the length of the gasket is the same as the length of the top plate.

[0011] According to one embodiment of this disclosure, by setting up a baffle, a top plate, and a drive assembly, when the plastic material is transported from the mixing drum to the vacuum chamber and a vacuum needs to be drawn, the operator can use the drive assembly to make the top plate drive the baffle downward, thereby blocking the discharge port of the mixing drum and preventing air from entering from the gap between the mixing blades and the plastic material in the mixing drum. This improves the sealing performance of the vacuum chamber, eliminating the need for the vacuum pump to continuously run to maintain the vacuum level in the vacuum chamber, reducing energy consumption, and improving the operational stability and durability of the vacuum pump.

[0012] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0014] Figure 1 This is a schematic diagram of the overall structure of a plastic extrusion sludge device for repairing the lining of a medium-frequency furnace in one embodiment.

[0015] Figure 2 This is a schematic internal cross-sectional view of a plastic extrusion device for repairing the lining of an intermediate frequency furnace, as shown in one embodiment.

[0016] Figure 3This is a side view of the vacuum box of a plastic extrusion sludge device for repairing the lining of a medium-frequency furnace, as shown in one embodiment.

[0017] Figure 4 This is a schematic cross-sectional view of the vacuum chamber of a plastic extrusion device for repairing the lining of an intermediate frequency furnace, as shown in one embodiment.

[0018] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] The following are marked in the diagram: 1. Base; 2. Mixing drum; 3. Feed frame; 4. Vacuum box; 5. Squeezing drum; 6. Baffle; 7. Top plate; 8. Vacuum pump; 9. Brake motor; 10. Rotating shaft; 11. Connecting rod; 12. Square groove; 13. Round block; 14. Partition plate; 15. Vertical rod; 16. Swing rod; 17. Slide groove; 18. First slider; 19. Second slider; 20. Gasket. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0023] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0024] like Figures 1-5 As shown, a plastic extrusion sludge device for repairing the lining of a medium-frequency furnace includes a base 1, on which a mixing drum 2 and an extrusion sludge cylinder 5 are fixedly installed. A vacuum chamber 4 is fixedly connected between the mixing drum 2 and the extrusion sludge cylinder 5. A feed frame 3 is fixedly installed on the top of the mixing drum 2. A vacuum pump 8 is fixedly installed on the vacuum chamber 4. A baffle 6 is movably inserted into the top of the vacuum chamber 4. The bottom end of the baffle 6 extends into the interior of the vacuum chamber 4. A top plate 7 is fixedly installed on the top of the baffle 6. The top plate 7 is connected to the vacuum chamber 4 through a drive assembly. The top plate 7 can drive the baffle 6 to move downwards through the drive assembly to block the discharge port of the mixing drum 2.

[0025] When the plastic material is transferred from the mixing drum 2 to the vacuum chamber 4, and a vacuum needs to be drawn, the operator can use the drive assembly to make the top plate 7 move the baffle 6 downwards. This allows the baffle 6 to block the outlet of the mixing drum 2, preventing air from entering through the gap between the mixing blades and the plastic material in the mixing drum 2. This improves the sealing of the vacuum chamber 4, eliminating the need for the vacuum pump 8 to continuously run to maintain the vacuum level in the vacuum chamber 4, thus reducing energy consumption.

[0026] The aforementioned plastic extrusion device for repairing the lining of a medium-frequency furnace includes a drive assembly comprising a brake motor 9, which is fixedly mounted on the top of a vacuum chamber 4. The output shaft of the brake motor 9 is connected to a rotating shaft 10 via a coupling. The other end of the rotating shaft 10 is fixedly connected to a connecting rod 11. A square groove 12 is provided on the top plate 7, and a round block 13 located inside the square groove 12 is fixedly mounted on the connecting rod 11.

[0027] By activating the brake motor 9, the rotating shaft 10 can drive the connecting rod 11 and the round block 13 to rotate, thereby causing the outer surface of the round block 13 to press against the inner wall of the square groove 12, which in turn causes the top plate 7 to drive the baffle 6 to move downward, thereby causing the baffle 6 to block the discharge port of the mixing drum 2.

[0028] The aforementioned plastic extrusion device for repairing the lining of a medium-frequency furnace has partitions 14 movably inserted into both sides of the vacuum box 4, and the partitions 14 are connected to the top plate 7 through a transmission assembly.

[0029] When the two partitions 14 move towards each other and merge, they can seal the connection between the vacuum box 4 and the sludge extrusion cylinder 5, thereby further improving the sealing performance inside the vacuum box 4 and making it easier to maintain a good vacuum level in the vacuum box 4.

[0030] The aforementioned plastic extrusion device for repairing the lining of a medium-frequency furnace includes a transmission assembly comprising a vertical rod 15 and a swing rod 16. The vertical rod 15 is fixedly installed on the top plate 7, and the swing rod 16 is rotatably connected to the vacuum box 4. A groove 17 is provided on the swing rod 16. A first slider 18 is fixedly installed on the vertical rod 15, and the other end of the first slider 18 extends into the groove 17. A second slider 19 located inside the groove 17 is fixedly installed on the partition plate 14.

[0031] When the top plate 7 moves the baffle 6 downward, it can simultaneously move the vertical rod 15 downward, thereby causing the first slider 18 to move downward and press the inner wall of the chute 17. This causes the swing rod 16 to rotate, which in turn causes the inner wall of the chute 17 to press the outer surface of the second slider 19. This causes the two partitions 14 to move towards each other. After the baffle 6 blocks the outlet of the mixing drum 2, the two partitions 14 also merge after moving, thus achieving good sealing inside the vacuum box 4.

[0032] The aforementioned plastic extrusion sludge device for repairing the lining of a medium-frequency furnace has a circular block 13 whose diameter is matched with the width of a square groove 12, and the inner wall of the square groove 12 is coated with a lubricating layer.

[0033] By coating the inside of the square groove 12 with a lubricating layer, the round block 13 can slide more smoothly inside the square groove 12.

[0034] The aforementioned plastic extrusion sludge device for repairing the lining of a medium-frequency furnace has a gasket 20 fixedly installed at the bottom of the top plate 7, and the length of the gasket 20 is the same as the length of the top plate 7.

[0035] The gasket 20 can be made of rubber. When the top plate 7 moves downward, the gasket 20 can be pressed tightly against the top of the vacuum chamber 4, thereby improving the sealing performance of the insertion interface where the baffle 6 is located, and further improving the sealing effect inside the vacuum chamber 4.

[0036] Working principle and usage process of this utility model:

[0037] First, the staff put the raw materials into the mixing drum 2 from the feed box 3 for mixing. Then, the plastic material enters the vacuum box 4 from the mixing drum 2 and is then continuously squeezed and pushed into the extrusion drum 5. In the general production process, a section of material will be extruded after the machine is turned on. This section of material extruded after the machine is turned on is usually scrapped. The formal production operation will only begin after the internal flow of the equipment is confirmed to be unobstructed. Therefore, during the production process, the mixing drum 2, vacuum box 4 and extrusion drum 5 are always continuously filled with material.

[0038] When vacuuming is required, the operator can first activate the brake motor 9, causing the rotating shaft 10 to drive the connecting rod 11 and the round block 13 to rotate. This allows the outer surface of the round block 13 to press against the inner wall of the square groove 12, which in turn causes the top plate 7 to move the baffle 6 downwards. This allows the baffle 6 to block the outlet of the mixing drum 2, preventing the plastic material inside the mixing drum 2 from continuing to enter the vacuum chamber 4. The mixing drum 2 has sufficient buffer space, and the plastic material will only slowly accumulate towards the outlet. At the same time, due to the movement of the top plate 7, the vertical rod 15 moves downwards, causing the first slider 18 to move downwards and press against the inner wall of the chute 17. This causes the swing rod 16 to rotate, allowing the inner wall of the chute 17 to press against the outer surface of the second slider 19, which in turn causes the two partitions to... The two baffles 14 move in opposite directions. After the baffle 6 blocks the outlet of the mixing drum 2, the two baffles 14 also merge after moving, blocking the connection between the vacuum box 4 and the extrusion cylinder 5. This allows some plastic material to remain inside the vacuum box 4. Due to the good sealing of the vacuum box 4, the operator then starts the vacuum pump 8 to perform a vacuuming operation. This means that the vacuum pump 8 can maintain a good vacuum level in the vacuum box 4 without continuous operation, reducing energy consumption and improving the operational stability and durability of the vacuum pump 8. After the vacuuming operation is completed, the brake motor 9 is started to release the seal on the vacuum box 4, allowing the plastic material in the mixing drum 2 to continue entering the vacuum box 4. At the same time, the plastic material in the vacuum box 4 that has been evacuated enters the extrusion cylinder 5. The above operation can be repeated to achieve continuous production.

[0039] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A plastic extrusion sludge device for repairing the lining of a medium-frequency furnace, comprising a base (1), on which a stirring cylinder (2) and an extrusion cylinder (5) are fixedly installed, a vacuum chamber (4) is fixedly connected between the stirring cylinder (2) and the extrusion cylinder (5), a feeding frame (3) is fixedly installed on the top of the stirring cylinder (2), and a vacuum pump (8) is fixedly installed on the vacuum chamber (4), characterized in that: A baffle (6) is movably inserted into the top of the vacuum chamber (4). The bottom end of the baffle (6) extends into the interior of the vacuum chamber (4). A top plate (7) is fixedly installed on the top of the baffle (6). The top plate (7) is connected to the vacuum chamber (4) through a drive assembly. The top plate (7) can drive the baffle (6) to move downwards through the drive assembly to block the outlet of the mixing drum (2).

2. The plastic extrusion sludge device for repairing the lining of a medium-frequency furnace according to claim 1, characterized in that: The drive assembly includes a brake motor (9), which is fixedly installed on the top of the vacuum chamber (4). The output shaft of the brake motor (9) is connected to a rotating shaft (10) via a coupling. The other end of the rotating shaft (10) is fixedly connected to a connecting rod (11). A square groove (12) is provided on the top plate (7), and a round block (13) located inside the square groove (12) is fixedly installed on the connecting rod (11).

3. The plastic extrusion sludge device for repairing the lining of a medium-frequency furnace according to claim 1, characterized in that: Both sides of the vacuum chamber (4) are movably connected to partitions (14), and the partitions (14) are connected to the top plate (7) through a transmission assembly.

4. The plastic extrusion sludge device for repairing the lining of a medium-frequency furnace according to claim 3, characterized in that: The transmission assembly includes a vertical rod (15) and a swing rod (16). The vertical rod (15) is fixedly installed on the top plate (7). The swing rod (16) is rotatably connected to the vacuum chamber (4). A groove (17) is provided on the swing rod (16). A first slider (18) is fixedly installed on the vertical rod (15). The other end of the first slider (18) extends into the groove (17). A second slider (19) located inside the groove (17) is fixedly installed on the partition plate (14).

5. The plastic extrusion sludge device for repairing the lining of a medium-frequency furnace according to claim 2, characterized in that: The diameter of the circular block (13) is adapted to the width of the square groove (12), and the inner wall of the square groove (12) is coated with a lubricating layer.

6. The plastic extrusion sludge device for repairing the lining of a medium-frequency furnace according to claim 1, characterized in that: A gasket (20) is fixedly installed at the bottom of the top plate (7), and the length of the gasket (20) is the same as the length of the top plate (7).

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