Device for preventing filler dust from overflowing of ring type roasting furnace

Abstract

A device for preventing filler dust from overflowing of a ring type roasting furnace comprises a cover body and a flexible sealing cover. The top of the cover body is provided with an opening end, two supporting frames are oppositely arranged along the top of the cover body, and guide rods are symmetrically arranged between the two supporting frames; the flexible sealing cover is arranged at the opening end of the top of the cover body, the lower end of the flexible sealing cover extends into the cover body, the side, facing the supporting frame, of the flexible sealing cover is connected to the supporting frame, the side, facing the guide rod, of the flexible sealing cover is slidably connected to the guide rod, the outer wall of the flexible sealing cover is attached to the inner wall of the opening end, and a through hole is formed in the middle of the flexible sealing cover. When the flexible sealing cover slides and is folded towards one supporting frame along the guide rod, the flexible sealing cover on the side, facing the sliding direction, of the through hole is folded, and the flexible sealing cover on the side, opposite to the sliding direction of the through hole, of the through hole is stretched and flattened. During use, the flexible sealing cover can prevent coke dust from overflowing, so that the dust in a production workshop is greatly reduced, the body of a worker is prevented from being hurt by the dust, and meanwhile, the loss of the coke dust can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ring-type roasting furnaces, in particular to a device for preventing filler dust from overflowing a ring-type roasting furnace. Background Art

[0002] Calcination is a crucial process in carbon production. Its purpose is to coke the binder in carbon products, remove volatiles, and improve their mechanical strength, electrical conductivity, and heat resistance. Currently, graphite electrodes and their resulting carbon products are calcined using combustion roasters. This involves loading the green graphite electrodes and carbon products into a furnace and firing them with coal from room temperature to 1200-1250°C for 450-480 hours per furnace. After firing, the temperature is then lowered from 1250°C to room temperature, and the resulting carbon products emerge from the furnace as calcined products. Existing intermittent coal-fired roasters are simple in design, relying on six or eight coal-burning ports on either side of the furnace body. This consumes large amounts of coal, resulting in significant environmental pollution and energy consumption. Ring roasters are widely used in the metallurgical carbon industry to produce electrode products. The advantages of ring roasters include continuous operation, large capacity, and high production capacity.

[0003] Before using a ring roasting furnace for roasting, the billets need to be placed in the ring roasting furnace, and then coke powder is filled into the ring roasting furnace to fill the gaps between the billets; but during the process of filling the coke powder, the top of the ring roasting furnace is open, and the coke powder will produce a lot of dust during the filling process. The coke dust overflowing from the ring roasting furnace not only easily pollutes the working environment of the production workshop and affects the health of personnel, but also causes waste of resources. Summary of the Invention

[0004] In order to solve the technical problems existing in the above technology, it is necessary to provide a ring-type roasting furnace filler dust prevention device.

[0005] A ring-type roasting furnace filler dust overflow prevention device comprises a cover body and a flexible sealing cover;

[0006] The top of the cover body is provided with an open end, two support frames are provided opposite to each other along the top of the cover body, and guide rods are symmetrically provided between the two support frames and located on both sides of the top of the cover body;

[0007] The flexible sealing cover is arranged at the open end of the top of the cover body, and the lower end of the flexible sealing cover extends to the inside of the cover body. The flexible sealing cover is connected to the support frame on the side facing the support frame, and the flexible sealing cover slides to the guide rod on the side facing the guide rod, so that the outer wall of the flexible sealing cover is fitted with the inner wall of the open end of the top of the cover body. A through hole connecting to the inside of the cover body is opened in the middle of the flexible sealing cover. When the flexible sealing cover slides and folds along the guide rod toward one of the support frames, the through hole also moves synchronously to the same side, and when the through hole moves to the extreme position, the top of the flexible sealing cover on the side of the through hole facing the sliding direction is folded, and the top of the flexible sealing cover on the side opposite to the sliding direction of the through hole is stretched and flattened.

[0008] Preferably, the flexible sealing cover is provided with a connecting slip ring capable of sliding along the guide rod.

[0009] Preferably, the flexible sealing cover is provided with a tensioning member for connecting to the support frame.

[0010] Preferably, a flexible sleeve is provided on the through hole.

[0011] Preferably, slide rails are symmetrically arranged along the upper side of the inner wall of the cover body in the same direction as the guide rods, and a sliding assembly adapted to the slide rails is provided at the lower end of the flexible sealing cover.

[0012] Preferably, the sliding assembly includes a roller and a connecting buckle; the roller is installed on the slide rail and can move along the slide rail. A hanging ring is installed on the side of the roller that is rotated toward the flexible sealing cover. The connecting buckle is fixed on the flexible sealing cover, and the connecting buckle is connected to the hanging ring.

[0013] Preferably, a rubber pad is provided at the upper edge of the open end of the top of the cover body, and the rubber pad protrudes from the inner wall of the open end so that the inner wall of the rubber pad fits with the outer wall of the flexible sealing cover.

[0014] Preferably, the lower end of the cover body is provided with a retaining ring adapted to the shape of the lower end of the cover body.

[0015] Preferably, a lifting lug is provided on the outer wall of the retaining ring.

[0016] Compared with the prior art, the ring-type roasting furnace filler dust overflow prevention device provided by the utility model includes a cover body and a flexible sealing cover; the top of the cover body is provided with an open end, and two support frames are provided opposite to each other along the top of the cover body, and guide rods are symmetrically provided on both sides of the top of the cover body between the two support frames; the flexible sealing cover is provided at the open end of the top of the cover body, and the lower end of the flexible sealing cover extends to the inside of the cover body, and the flexible sealing cover is connected to the support frame on one side of the support frame, and the flexible sealing cover slides toward the guide rod and connects to the guide rod so that the outer wall of the flexible sealing cover is fitted with the inner wall of the open end of the top of the cover body, and a through hole connecting to the inside of the cover body is provided in the middle of the flexible sealing cover, and when the flexible sealing cover slides and folds toward one of the support frames along the guide rod, the through hole also moves synchronously to the same side, and when the through hole moves to the extreme position, the top of the flexible sealing cover on the side of the through hole facing the sliding direction is folded, and the top of the flexible sealing cover on the side opposite to the sliding direction of the through hole is stretched and flattened. During use, the present invention allows the coke dust to be filled by inserting the discharge pipe of the coke dust storage bin along the through hole. During filling, the flexible sealing cover prevents the coke dust from overflowing, significantly reducing the dust in the production workshop working environment, ensuring that personnel are protected from dust injuries, while also reducing coke dust loss. During coke dust filling, the discharge pipe of the coke dust storage bin can be moved back and forth along the cover body, and the flexible sealing cover can fold and flatten back and forth with the movement of the discharge pipe, thereby preventing not only overflow but also localized accumulation of coke dust during filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a front view structural schematic diagram of the present utility model.

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the structure from another angle.

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the cross-sectional structure of AA.

[0021] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle.

[0022] In the figure: cover body 01, flexible sealing cover 02, support frame 03, guide rod 04, connecting slip ring 05, tensioning member 06, flexible sleeve 07, slide rail 08, sliding assembly 09, roller 91, connecting buckle 92, hanging ring 93, rubber pad 10, retaining ring 20, and lifting ear 30. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] Please see Figures 1 to 4 The utility model provides a ring-type roasting furnace filler dust overflow prevention device, comprising a cover body 01 and a flexible sealing cover 02;

[0026] The top of the cover body 01 is provided with an open end, and two support frames 03 are provided opposite to each other along the top of the cover body 01. Guide rods 04 are symmetrically provided between the two support frames 03 and located on both sides of the top of the cover body 01.

[0027] The flexible sealing cover 02 is arranged at the open end of the top of the cover body 01. The lower end of the flexible sealing cover 02 extends into the interior of the cover body 01. The side of the flexible sealing cover 02 facing the support frame 03 is connected to the support frame 03, and the flexible sealing cover 02 slides toward the guide rod 04 and connects to the guide rod 04, so that the outer wall of the flexible sealing cover 02 fits the inner wall of the open end of the top of the cover body 01. A through hole is opened in the middle of the flexible sealing cover 02 to connect to the interior of the cover body 01. When the flexible sealing cover 02 slides and folds along the guide rod 04 toward one of the support frames 03, the through hole also moves synchronously to the same side. When the through hole moves to the extreme position, the top of the flexible sealing cover 02 on the side of the through hole facing the sliding direction is folded, while the top of the flexible sealing cover 02 on the side opposite to the sliding direction of the through hole is stretched and flattened. The material of the flexible sealing cover 02 can be a flexible material such as canvas.

[0028] During use, the entire device must first be hoisted by a crane or overhead crane and placed on top of the ring roaster. At this point, the lower end of the cover 01 completely covers the top of the ring roaster. The coke dust is then filled by inserting the discharge pipe of the coke dust storage bin along the through hole. During filling, the flexible sealing cover 02 prevents coke dust from overflowing, significantly reducing dust in the production workshop working environment, ensuring that personnel are protected from dust damage while also reducing coke dust loss. During the coke dust filling process, the discharge pipe of the coke dust storage bin can be moved back and forth along the cover 01. At this time, the flexible sealing cover 02 can fold and flatten back and forth with the movement of the discharge pipe, allowing the flexible sealing cover 02 to always block the open end of the cover 01 and prevent dust from overflowing. This prevents not only dust from overflowing but also localized accumulation of coke dust during filling.

[0029] In one embodiment, a connecting slip ring 05 that can slide along the guide rod 04 is provided on the flexible sealing cover 02. The connecting slip ring 05 not only makes it easier to unfold the flexible sealing cover 02, but also allows the flexible sealing cover 02 to fit the inner wall of the opening end to prevent dust from escaping.

[0030] Specifically, a tensioning member 06 is provided on the flexible sealing cover 02 for connecting to the support frame 03. The coupling slip ring 05 cooperates with the tensioning member 06 to ensure that the entire outer wall of the lower end of the flexible sealing cover 02 always fits with the inner wall of the opening end, thereby effectively preventing dust from escaping.

[0031] In one embodiment, the through hole is provided with a flexible sleeve 07. The material of the flexible sleeve 07 is the same as that of the flexible sealing cover 02, which is not only light in weight but also enables the flexible sleeve 07 to fit tightly with the discharge pipe of the coke powder storage bin.

[0032] In one embodiment, slide rails 08 are symmetrically arranged along the upper inner wall of the cover body 01, aligned with the orientation of the guide rods 04. A sliding assembly 09, compatible with the slide rails 08, is provided at the lower end of the flexible sealing cover 02. The cooperation between the slide assembly 09 and the slide rails 08 limits the longitudinal displacement of the lower end of the flexible sealing cover 02, ensuring that the lower end of the flexible sealing cover 02 is always stretched and deployed, thus maintaining a constant fit between the lower outer wall of the flexible sealing cover 02 and the inner wall of the open end, thereby effectively preventing the escape of large amounts of dust. Furthermore, the upper and lower portions of the flexible sealing cover 02 can slide smoothly and synchronously, ensuring synchronization of their upward and downward sliding, expansion, or folding.

[0033] Specifically, the sliding assembly 09 includes a roller 91 and a connecting clip 92. The roller 91 is mounted on the slide rail 08 and can move along the slide rail 08. A hanging ring 93 is mounted on the side of the roller 91 facing the flexible sealing cover 02. The connecting clip 92 is fixed to the flexible sealing cover 02 and connected to the hanging ring 93. The roller 91 can slide along the slide rail 08, or the roller 91 can roll along the slide rail 08. When the roller 91 is connected by sliding, the hanging ring 93 and the roller 91 are connected by a fixed connection or a rotational connection. When the roller 91 is connected by rolling, the hanging ring 93 and the roller 91 are connected by a rotational connection.

[0034] In one embodiment, a rubber pad 10 is provided at the upper edge of the open end of the top of the cover body 01. The rubber pad 10 protrudes from the inner wall of the open end, so that the inner wall of the rubber pad 10 fits closely with the outer wall of the flexible sealing cover 02. The rubber pad 10 can reduce wear on the flexible sealing cover 02 and, when the flexible sealing cover 02 is tightened, can make the flexible sealing cover 02 and the rubber pad 10 fit more tightly.

[0035] In one embodiment, the lower end of the cover 01 is provided with a retaining ring 20 that matches the shape of the lower end of the cover 01. After the cover 01 is placed on the top of the ring roasting furnace, the lower end surface of the retaining ring 20 will fit with the top of the ring roasting furnace to form a seal.

[0036] In one embodiment, a lifting lug 30 is provided on the outer wall of the retaining ring 20 for facilitating lifting and transfer.

[0037] The above disclosure is only a preferred embodiment of the present invention, and it is certainly not intended to limit the scope of the rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A device for preventing filler dust from overflowing in a ring-type roasting furnace, characterized in that: It includes a cover body and a flexible sealing cover; The top of the cover body is provided with an open end, two support frames are provided opposite to each other along the top of the cover body, and guide rods are symmetrically provided between the two support frames and located on both sides of the top of the cover body; The flexible sealing cover is arranged at the open end of the top of the cover body, and the lower end of the flexible sealing cover extends to the inside of the cover body. The flexible sealing cover is connected to the support frame on the side facing the support frame, and the flexible sealing cover slides to the guide rod on the side facing the guide rod, so that the outer wall of the flexible sealing cover is fitted with the inner wall of the open end of the top of the cover body. A through hole connecting to the inside of the cover body is opened in the middle of the flexible sealing cover. When the flexible sealing cover slides and folds along the guide rod toward one of the support frames, the through hole also moves synchronously to the same side, and when the through hole moves to the extreme position, the top of the flexible sealing cover on the side of the through hole facing the sliding direction is folded, and the top of the flexible sealing cover on the side opposite to the sliding direction of the through hole is stretched and flattened.

2. The ring-type roasting furnace filler dust overflow prevention device according to claim 1, characterized in that: The flexible sealing cover is provided with a connecting slip ring which can slide along the guide rod.

3. The ring-type roasting furnace filler dust overflow prevention device according to claim 2, characterized in that: The flexible sealing cover is provided with a tensioning piece for connecting to the support frame.

4. The ring-type roasting furnace filler dust overflow prevention device according to claim 1, characterized in that: A flexible sleeve is provided on the through hole.

5. The ring-type roasting furnace filler dust overflow prevention device according to any one of claims 1 to 4, characterized in that: Slide rails are symmetrically arranged along the upper side of the inner wall of the cover body and are in the same direction as the guide rods. A sliding assembly adapted to the slide rails is arranged at the lower end of the flexible sealing cover.

6. The ring-type roasting furnace filler dust overflow prevention device according to claim 5, characterized in that: The sliding assembly includes a roller and a connecting buckle; the roller is installed on the slide rail and can move along the slide rail. A hanging ring is installed on the side of the roller facing the flexible sealing cover. The connecting buckle is fixed on the flexible sealing cover and connected to the hanging ring.

7. The ring-type roasting furnace filler dust overflow prevention device according to claim 6, characterized in that: A rubber pad is provided at the upper edge of the opening end of the top of the cover body. The rubber pad protrudes from the inner wall of the opening end so that the inner wall of the rubber pad fits with the outer wall of the flexible sealing cover.

8. The ring-type roasting furnace filler dust overflow prevention device according to claim 1, characterized in that: The lower end of the cover body is provided with a retaining ring which is adapted to the shape of the lower end of the cover body.

9. The ring-type roasting furnace filler dust overflow prevention device according to claim 8, characterized in that: A lifting lug is provided on the outer wall of the retaining ring.

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