A safe heat insulation device for replacing small grinding plate of coke oven on line

Abstract

The utility model belongs to coke oven equipment maintenance technical field especially is a kind of coke oven online replacement coke oven small millboard's safety heat insulating device, including base, heat insulating box and fire baffle, the upper middle part of base is fixedly connected with heat insulating box, the top of heat insulating box is fixedly connected with ceiling, the both ends in heat insulating box are fixedly connected with positioning sleeve rod, and the one end of two the connecting rod is located the outside of heat insulating box and is commonly fixedly connected with fire baffle;The rotating rod is coiled with heat insulating curtain;Through ceiling, the high-temperature coke collapsed above can be effectively blocked, through scalable advancing and locking fire baffle, a movable, reliable front heat shield between operator and high-temperature coke pie is established, and front heat radiation is greatly blocked, heat insulating curtain and fire baffle and ceiling synergistic effect, constitute a semi-closed safety space, effectively prevent high-temperature debris from side splashing injury, further isolate lateral radiation heat.

Description

Technical Field

[0001] This utility model belongs to the field of coke oven equipment maintenance technology, specifically relating to a safety heat insulation device for online replacement of small grinding plates in coke ovens. Background Technology

[0002] In coking production, the small grinding plates on the coke oven door are consumable parts that need to be replaced regularly. The traditional method for replacing these grinding plates involves opening the oven door after coke is discharged, manually scraping away the red-hot coke at the oven doorway to create a working space, and then the operator entering that space to replace the grinding plates. Chinese patent publication number [number missing] discloses...

[0003] During the replacement of existing small grinding plates, the coke cake at the furnace door is in an unstable state, and the coke cake above is prone to collapse. The high-temperature coke falls instantly, posing a fatal threat to the operators. Operators need to face the coke cake with a temperature of up to thousands of degrees at close range. Even if they wear heat-insulating clothing, the strong heat radiation can easily cause burns and heatstroke. The working environment is extremely harsh. To address this, we propose a safety heat insulation device for online replacement of small grinding plates in coke ovens. Utility Model Content

[0004] To address the problem described in the background art, where existing small grinding plates cause the coke cake at the furnace door to be unstable during replacement operations, with the upper coke cake prone to collapse and hot coke falling instantly, posing a fatal threat to workers, and requiring operators to be in close proximity to coke cakes with temperatures reaching thousands of degrees Celsius, even wearing heat-resistant clothing, the intense heat radiation can easily lead to burns and heatstroke, resulting in an extremely harsh working environment, this utility model provides a safe heat insulation device for online replacement of small grinding plates in coke ovens.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety heat insulation device for online replacement of coke oven small grinding plates, comprising a base, a heat insulation box, and a fire baffle plate. The heat insulation box is fixedly connected to the upper center of the base, a canopy is fixedly connected to the top of the heat insulation box, a metal mesh plate is installed at the bottom inside the heat insulation box, positioning sleeve rods are fixedly connected to both ends inside the heat insulation box, connecting rods are horizontally slidably connected inside the positioning sleeve rods, and the fire baffle plate is fixedly connected to one end of the two connecting rods located outside the heat insulation box.

[0006] A rotating rod is installed on one side of the heat insulation box, and a heat insulation curtain is wound on the rotating rod. One end of the rotating rod is connected to a winding motor for driving its rotation.

[0007] As a preferred embodiment of the safety and heat insulation device for online replacement of small grinding plates in a coke oven according to this utility model, the base is equipped with casters at all four corners of its bottom, and the casters are heavy-duty casters with foot brake mechanisms.

[0008] As a preferred embodiment of the safety and heat insulation device for online replacement of small grinding plates in a coke oven according to this utility model, a push handle is fixedly connected to one side of the upper part of the base.

[0009] As a preferred embodiment of the safety and heat insulation device for online replacement of small grinding plates in a coke oven according to this utility model, a lever is fixedly connected to one side of the lower part of the connecting rod, and a guide groove is provided on the positioning sleeve for the lever to pass through. The lever is fixed to the positioning sleeve by bolts.

[0010] As a preferred embodiment of the safety and heat insulation device for online replacement of coke oven grinding plates according to this utility model, the side of the fire baffle plate facing the coke oven door is covered with a high-temperature heat insulation layer, which is a ceramic fiber blanket.

[0011] As a preferred embodiment of the safety and heat insulation device for online replacement of small grinding plates in a coke oven according to this utility model, the heat insulation curtain is a high-temperature resistant ceramic fiber cloth or a flexible ceramic fiber blanket.

[0012] As a preferred embodiment of the safety and heat insulation device for online replacement of small grinding plates in a coke oven according to this utility model, the cross-section of the canopy is inverted V-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a canopy at the top of the working space, this application can effectively block the collapse of high-temperature coke from above, and use its inclined structure to guide the coke to both sides, providing solid physical protection for the operators below. Through the retractable and lockable fire baffle, a movable and reliable frontal heat insulation barrier is established between the operators and the high-temperature coke cake, which greatly blocks frontal heat radiation and significantly improves the comfort of the working environment. The heat insulation curtain design, together with the fire baffle and the canopy, forms a semi-enclosed safety space, which not only effectively prevents high-temperature debris from flying from the side and injuring people, but also further isolates lateral radiant heat, realizing three-dimensional protection from the front, top and sides. This prevents the problems of the existing small grinding plate where the coke cake at the furnace door is in an unstable state during the replacement operation, the coke cake above is very easy to collapse, the risk of coke collapse is high, the threat to personal safety is great, and the harm of high temperature radiation is serious. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a top view of the fire baffle of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the heat insulation curtain and rotating rod of this utility model.

[0020] In the diagram: 1. Base; 2. Push handle; 3. Heat insulation box; 4. Casters; 5. Canopy; 6. Fire baffle; 7. Metal mesh plate; 8. Connecting rod; 9. Positioning sleeve rod; 10. Toggle block; 11. Guide groove; 12. Heat insulation curtain; 13. Rewinding motor; 14. Rotating rod. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] like Figures 1-5 As shown;

[0024] A safety heat insulation device for online replacement of small grinding plates in a coke oven includes a base 1, a heat insulation box 3, and a fire baffle 6. The heat insulation box 3 is fixedly connected to the upper center of the base 1, and a canopy 5 is fixedly connected to the top of the heat insulation box 3. A metal mesh plate 7 is installed at the bottom inside the heat insulation box 3. Positioning sleeve rods 9 are fixedly connected to both ends inside the heat insulation box 3. Connecting rods 8 are horizontally slidably connected inside the positioning sleeve rods 9. The fire baffle 6 is fixedly connected to one end of the two connecting rods 8 located outside the heat insulation box 3. A rotating rod 14 is installed on one side inside the heat insulation box 3. A heat insulation curtain 12 is wound on the rotating rod 14. A winding motor 13 for driving the rotation of the rotating rod 14 is connected to one end of the rotating rod 14.

[0025] In this implementation plan: the canopy 5 installed at the top of the work space can effectively block the high-temperature coke from collapsing above, and its sloping structure guides the coke to both sides, providing solid physical protection for the operators below. The retractable and lockable fire baffle 6 establishes a movable and reliable frontal heat insulation barrier between the operators and the high-temperature coke cake, greatly blocking frontal heat radiation and significantly improving the comfort of the working environment. The heat insulation curtain 12, designed in conjunction with the fire baffle 6 and the canopy 5, forms a semi-enclosed safety space, which not only effectively prevents high-temperature debris from flying from the side and injuring people, but also further isolates lateral radiant heat, achieving three-dimensional protection from the front, top and sides.

[0026] In an optional embodiment, casters 4 are installed at the four bottom corners of the base 1. The casters 4 are heavy-duty casters with foot brake mechanisms.

[0027] In this implementation plan: the heavy-duty casters 4 ensure that the device has sufficient structural strength when bearing its own weight and possible external loads, and can move easily and smoothly on the complex ground of the coke oven workshop. When the device moves to the furnace door and is precisely positioned, the operator can step on the foot brake mechanism to lock the casters 4 instantly, effectively preventing the device from accidentally sliding due to slight ground vibration or personnel operation during operation.

[0028] In an optional embodiment, a push handle 2 is fixedly connected to the upper side of the base 1.

[0029] In this implementation plan: the fixed push handle 2 provides the operator with an ergonomic point of force application, making it easier to push this heavy device with less effort and easier to control the direction.

[0030] In an optional embodiment, a lever 10 is fixedly connected to the lower side of the connecting rod 8, and a guide groove 11 is provided on the positioning sleeve 9 for the lever 10 to pass through. The lever 10 is fixed relative to the positioning sleeve 9 by bolts.

[0031] In this implementation plan: by pushing the connecting rod 8, the operator can make the lever 10 slide along the guide groove 11 to precisely adjust the distance between the fire baffle 6 and the front plate, ensuring the best heat insulation effect. After the adjustment is in place, the lever 10 can be firmly pressed onto the positioning sleeve rod 9 by tightening the bolts to achieve a mechanical hard connection.

[0032] In an optional embodiment, a high-temperature resistant insulation layer is provided on the side of the fire baffle 6 facing the coke oven door, and the high-temperature resistant insulation layer is a ceramic fiber blanket.

[0033] In this implementation plan, the heat insulation layer of the fire baffle 6 is a "ceramic fiber blanket", which directly and efficiently solves the problem of high-temperature radiation from the front. When it is laid on the side of the fire baffle 6 facing the coke cake, it can instantly absorb and block the strong radiant heat emitted by the coke cake, greatly reducing the heat transferred to the metal substrate of the fire baffle 6 and the working area behind it.

[0034] In an optional embodiment, the heat insulation curtain 12 is a high-temperature resistant ceramic fiber cloth or a flexible ceramic fiber blanket.

[0035] In this implementation scheme: the heat insulation curtain 12 is a curtain-like structure that can be easily opened and closed without taking up space. When closed, it can effectively block high-temperature sparks and char fragments splashing from the side of the coke cake and isolate lateral radiant heat.

[0036] In an optional embodiment, the canopy 5 has an inverted V-shaped cross-section.

[0037] In this implementation plan: the inverted V-shape can withstand the impact of the collapsing coke above and protect the safety of the personnel below. When the coke collapses, it will naturally slide down the two sloping surfaces of the inverted V-shape to both sides of the roof 5, instead of accumulating at the top.

[0038] Working principle:

[0039] The operator holds the push handle 2 at the back of the device and pushes the entire device. The four casters 4 at the bottom of the device ensure that it can be moved flexibly and easily to the coke oven door where the small grinding plate needs to be replaced. After reaching the approximate position, the operator finely adjusts the orientation of the device so that the heat insulation box 3 of the device is facing the oven door opening and the canopy 5 is located above the oven frame, covering the potential coke collapse area. Then, the operator steps on the brake device of the casters 4 to firmly fix the device in the working position.

[0040] The operator moves block 10, which slides in guide groove 11 and pushes connecting rod 8 forward. Connecting rod 8 extends horizontally from positioning sleeve 9 and pushes the fire baffle 6 at its front end to move towards the vertical surface of the coke cake. When the fire baffle 6 touches or approaches the surface of the coke cake, bolts are used to fix block 10, thereby locking the relative position of connecting rod 8 and positioning sleeve 9. At this time, the fire baffle 6, which is covered with ceramic fiber blanket high-efficiency heat insulation material, establishes the first solid front heat insulation barrier between the operator and the high-temperature coke cake, effectively blocking the direct radiant heat of the coke cake.

[0041] Start the winding motor 13, which drives the rotating rod 14 to rotate, thereby releasing the heat insulation curtain 12. The heat insulation curtain 12 hangs down and together with the canopy 5 and the fire baffle 6, it forms a semi-enclosed safe working space surrounded on the top and sides. As a second line of protection, it is specifically used to block high-temperature debris or sparks that may splash out from the side of the coke cake and further reduce lateral heat radiation.

[0042] The operator enters the heat insulation box 3 and stands on the metal mesh plate 7. The metal mesh plate 7 provides a sturdy working platform, and its mesh structure helps air circulation and debris fall. At this time, the operator is in a fully protected environment. There is a fire baffle 6 in front to insulate against high temperature, a canopy 5 above to protect against coke collapse, and a heat insulation curtain 12 on the side to prevent splashing. In this safe space, the operator can safely disassemble and install the small grinding plate. After the small grinding plate is replaced, the operator starts the rewinding motor 13 in reverse to rewind the heat insulation curtain 12 back onto the rotating rod 14, loosens the bolts, pulls the connecting rod 8 and the fire baffle 6 back into the heat insulation box 3, releases the brake of the universal wheel 4, and moves the entire device away from the furnace door by pushing the handle 2. Then the furnace door can be closed and production can be resumed.

[0043] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety heat insulation device for online replacement of small grinding plates in a coke oven, comprising a base (1), a heat insulation box (3), and a fire baffle (6), characterized in that: A heat insulation box (3) is fixedly connected to the upper middle part of the base (1), a canopy (5) is fixedly connected to the top of the heat insulation box (3), a metal mesh plate (7) is installed at the bottom inside the heat insulation box (3), positioning sleeve rods (9) are fixedly connected to both ends inside the heat insulation box (3), a connecting rod (8) is horizontally slidably connected inside the positioning sleeve rod (9), and a fire baffle plate (6) is fixedly connected to one end of the two connecting rods (8) located outside the heat insulation box (3). A rotating rod (14) is installed on one side inside the heat insulation box (3). A heat insulation curtain (12) is wound on the rotating rod (14). One end of the rotating rod (14) is connected to a winding motor (13) for driving its rotation.

2. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: The base (1) is equipped with casters (4) at the four corners of its bottom. The casters (4) are heavy-duty casters with foot brake mechanisms.

3. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: A push handle (2) is fixedly connected to one side of the upper part of the base (1).

4. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: A lever (10) is fixedly connected to one side of the lower part of the connecting rod (8). A guide groove (11) is provided on the positioning sleeve (9) for the lever (10) to pass through. The lever (10) is fixed to the positioning sleeve (9) by bolts.

5. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: The fire baffle (6) has a high-temperature resistant heat insulation layer on the side of the plate facing the coke oven door, and the high-temperature resistant heat insulation layer is a ceramic fiber blanket.

6. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: The heat insulation curtain (12) is a high-temperature resistant ceramic fiber cloth or a flexible ceramic fiber blanket.

7. The safety insulation device for online replacement of small grinding plates in coke ovens according to claim 1, characterized in that: The cross-section of the canopy (5) is an inverted V shape.

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