A protection device for replacing a small grinding plate of a coke oven

Abstract

The utility model belongs to the technical field of protector, especially a protector that coke oven replaces small millboard, including protection case, heat insulation ceiling and cold water tank, the top one end of protection case is fixedly connected with the heat insulation ceiling that extends outward, the inside installation support baffle of protection case and the folding board that is connected in one end of support baffle through hinge, the top fixed mounting of protection case has cold water tank, both sides are all installed pump body and with the conveying pipeline that pump body is connected, and the output of two conveying pipeline is connected first cooling coil and second cooling coil respectively, first cooling coil and second cooling coil are connected with a communicating pipe, form the physical isolation space through protection case and heat insulation ceiling, effectively block and part heat radiation, through the circulating cooling system that integrated by cold water tank, pump body, coil etc.

Description

Technical Field

[0001] This utility model belongs to the field of protective device technology, specifically relating to a protective device for replacing small grinding plates in a coke oven. Background Technology

[0002] In the metallurgical and coking industries, the small grinding plates on the coke oven carbonization chamber doors are critical sealing components that require regular replacement. Currently, replacing these grinding plates typically involves the operator opening the oven door at the end of the coking process and performing the operation directly in front of it. At this time, the carbonization chamber contains high-temperature (up to 1000℃ or higher) red-hot coke, generating extremely strong heat radiation and posing a significant safety risk of coke collapsing and falling from the furnace head.

[0003] In existing technologies, operators are completely exposed to the intense heat radiation of hot coke, which can easily lead to heatstroke and burns. Furthermore, there is a lack of effective protective structures. When faced with sudden coke collapse, personnel have nowhere to hide, and their personal safety is seriously threatened. The high-temperature environment causes operators' physical strength to decline rapidly, making it difficult to continue fine work. Wearing personal protective equipment such as heat-insulating clothing is also an option, but this passive protection method has limited effectiveness and increases the burden on personnel, resulting in poor flexibility. Therefore, we propose a protective device for replacing small grinding plates in coke ovens. Utility Model Content

[0004] To address the issues raised in the prior art, where operators are completely exposed to the intense heat radiation of hot coke ovens, easily leading to heatstroke and burns, and lacking effective protective structures, personnel have nowhere to escape in the face of sudden coke collapse, severely threatening their personal safety. The high-temperature environment also causes operators' physical strength to rapidly decline, making it difficult to perform continuous, meticulous work, or wear heat-resistant clothing or other personal protective equipment. These passive protection methods have limited effectiveness, increase the burden on personnel, and lack flexibility. This invention provides a protective device for replacing small grinding plates in a coke oven.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective device for replacing small grinding plates in a coke oven, comprising a protective box, an insulated roof, and a cold water tank. The upper end of the protective box is fixedly connected to an outwardly extending insulated roof. The protective box is equipped with a support partition and a folding plate connected to one end of the support partition by a hinge. A ladder is installed at the bottom of the protective box.

[0006] A cold water tank is fixedly installed on the top of the protective box. Pump bodies and conveying pipes connected to the pump bodies are installed on both sides of the cold water tank. The output ends of the two conveying pipes are respectively connected to a first cooling coil and a second cooling coil. The first cooling coil and the second cooling coil are connected to a common connecting pipe.

[0007] As a preferred protective device for replacing small grinding plates in a coke oven according to this utility model, the protective box is equipped with universal wheels with braking function at all four corners of its bottom.

[0008] As a preferred protective device for replacing small grinding plates in a coke oven according to this utility model, a conveyor block is fixed below the ladder, and a threaded screw with threaded engagement is installed inside the conveyor block, with one end of the threaded screw connected to a drive motor.

[0009] As a preferred embodiment of the protective device for replacing small grinding plates in a coke oven according to this utility model, the first cooling coil and the second cooling coil are connected in series through the connecting pipe, and the first cooling coil and the second cooling coil are fixedly installed on the inner side wall of the protective box.

[0010] As a preferred embodiment of the protective device for replacing small grinding plates in a coke oven according to this utility model, the first cooling coil and the second cooling coil are symmetrically distributed on both sides of the protective box, and the first cooling coil and the second cooling coil are respectively connected to an independent pump body and a conveying pipe connected thereto.

[0011] As a preferred protective device for replacing small grinding plates in a coke oven according to this utility model, the protective box, heat-insulating roof, cold water tank, and cooling coil assembly are all made of heat-insulating material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This application forms a physical isolation space through a protective box and an insulated roof, effectively blocking coke collapse and some heat radiation. Through the integrated circulating cooling system consisting of a cold water tank, pump body, coil, etc., it can actively and continuously reduce the temperature of the working area, fundamentally improving the working environment and preventing the problems of operators being completely exposed to the strong heat radiation of high-temperature red coke, which poses a great threat to personnel safety and results in a harsh working environment and low efficiency, as in the prior art. Attached Figure Description

[0013] 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:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the ladder of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure of the cooling coil of this utility model.

[0018] In the diagram: 1. Protective box; 2. Insulated roof; 3. Support partition; 4. Folding plate; 5. Ladder; 6. Conveying block; 7. Threaded screw; 8. Drive motor; 9. Cold water tank; 10. Pump body; 11. Conveying pipeline; 12. First cooling coil; 13. Connecting pipe; 14. Second cooling coil. Detailed Implementation

[0019] 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 scope of protection of the present utility model. Embodiment 1

[0020] like Figures 1-4 As shown;

[0021] A protective device for replacing small grinding plates in a coke oven includes a protective box 1, an insulated roof 2, and a cold water tank 9. The insulated roof 2 extending outward is fixedly connected to one end of the upper part of the protective box 1. A supporting partition 3 and a folding plate 4 connected to one end of the supporting partition 3 by a hinge are installed inside the protective box 1. A ladder 5 is installed at the bottom inside the protective box 1. The cold water tank 9 is fixedly installed on the top of the protective box 1. Pump bodies 10 and conveying pipes 11 connected to the pump bodies 10 are installed on both sides of the cold water tank 9. The output ends of the two conveying pipes 11 are respectively connected to a first cooling coil 12 and a second cooling coil 14. The first cooling coil 12 and the second cooling coil 14 are connected to a connecting pipe 13.

[0022] In this implementation plan: a physical isolation space is formed by the protective box 1 and the heat-insulating roof 2, which effectively blocks coke collapse and some heat radiation. Through the integrated circulating cooling system consisting of cold water tank 9, pump body 10, coils, etc., the temperature of the working area can be actively and continuously reduced, fundamentally improving the working environment.

[0023] In an optional embodiment, omnidirectional wheels with brakes are installed at all four corners of the bottom of the protective box 1.

[0024] In this implementation plan: the casters make the entire device extremely flexible to move, facilitating rapid transfer between different furnace numbers and improving work efficiency. The braking function ensures that the device can be firmly locked when in place, preventing accidental slippage during operation and ensuring the stability of the operating platform and operational safety.

[0025] In an optional embodiment, a conveyor block 6 is fixed below the elevator 5, and a threaded screw 7 with threaded engagement is installed inside the conveyor block 6. One end of the threaded screw 7 is connected to a drive motor 8.

[0026] In this implementation plan: the ladder 5 is connected to the drive motor 8 through the transmission block 6 and the threaded screw 7, realizing the electric telescopic adjustment of the ladder 5. The operator can easily adjust the ladder 5 to the optimal position suitable for the current ground height, eliminating the trouble of manual lifting. The operation is labor-saving and convenient, and enhances the adaptability of the equipment to different working environments.

[0027] In an optional embodiment, the first cooling coil 12 and the second cooling coil 14 are connected in series through a connecting pipe 13, and the first cooling coil 12 and the second cooling coil 14 are fixedly installed on the inner wall of the protective box 1.

[0028] In this implementation scheme: the first cooling coil 12 and the second cooling coil 14 are connected in series through the connecting pipe 13 and fixed to the inner wall of the protective box 1. This layout allows the cooling coils to cover the main heating surface in a large area directly. The series flow channel design ensures that the coolant can flow through the entire heating area in an orderly manner, thereby achieving efficient and uniform active cooling.

[0029] In an optional embodiment, the first cooling coil 12 and the second cooling coil 14 are symmetrically distributed on both sides of the protective box 1, and the first cooling coil 12 and the second cooling coil 14 are respectively connected to an independent pump body 10 and a delivery pipe 11 connected thereto.

[0030] In this implementation scheme: the first cooling coil 12 and the second cooling coil 14 are symmetrically distributed and connected to independent pump bodies 10 respectively, forming two independent and symmetrical circulating cooling modules, which doubles the cooling power and improves the overall cooling efficiency.

[0031] In an optional embodiment, the protective box 1, the insulated roof 2, the cold water tank 9, and the cooling coil assembly are all made of insulating material.

[0032] In this implementation plan, the insulation material reduces the conduction of external heat to the inside of the device, which not only protects the efficiency of the circulating cooling system and prevents the coolant from heating up too quickly, but also reduces the temperature of the device casing, avoiding the risk of burns to operators when they accidentally touch it.

[0033] Working principle:

[0034] Deploying the work platform and establishing a safety barrier: The operator pushes the entire protective device to the coke oven carbonization chamber door where the small grinding plate needs to be replaced, and then positions the casters. After the device is in place, the folding plate 4, which is connected to one end of the support partition 3 by a hinge, is flipped up so that its front end overlaps the coke flow plate of the coke oven. This transforms the originally tilted and inconvenient coke flow plate into a stable and flat working channel, making it easier for the operator to approach the working point at the oven door. At the same time, the protective box 1 itself and the heat-insulating roof 2 above it together form a physical barrier between the operator and the interior of the carbonization chamber, effectively blocking the heat radiation of the red coke and the potential risk of coke collapse.

[0035] Start the active cooling system: turn on the pump body 10 and drive motor 8. The pump body 10 works to pump out the coolant in the cold water tank 9 and send it through the delivery pipe 11 into the first cooling coil 12 installed on the inner wall of the protective box 1. After the coolant flows through the first cooling coil 12, it enters the second cooling coil 14 through the connecting pipe 13, and finally returns to the cold water tank 9 through the delivery pipe 11 on the other side, forming a circulating cooling loop. The circulating coolant continuously carries away the huge amount of heat transmitted from the direction of the carbonization chamber, reducing the ambient temperature inside the protective box 1, the heat insulation roof 2 and the working area, and mitigating the threat of high temperature heat radiation.

[0036] Adjustable ladder for easy access: The drive motor 8 drives the threaded screw 7 to rotate, and the transmission block 6 that meshes with the threaded screw 7 moves horizontally accordingly, thereby pushing the ladder 5 to slide out or retract at the bottom of the protective box 1. The operator can adjust the ladder 5 to a suitable extension length according to the height difference between the ground and the support partition 3, forming a stable slope, so as to conveniently and safely climb onto the working platform of the support partition 3.

[0037] Replacement operation: The operator climbs up the support partition 3 via the ladder 5, and safely approaches the furnace door through the unfolded folding plate 4 to disassemble, install and grout the small grinding plate. After the operation is completed, the operator leaves, shuts down the cooling system in sequence, and uses the drive motor 8 to retract the ladder 5 into the protective box 1. The folding plate 4 is then lowered, and the device can be moved away from the site to prepare for the next operation.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is 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 protective device for replacing small grinding plates in a coke oven, comprising a protective box (1), an insulated roof (2), and a cold water tank (9), characterized in that: The protective box (1) has an outwardly extending heat-insulating roof (2) fixedly connected to one end of the upper part. The protective box (1) has a support partition (3) and a folding plate (4) connected to one end of the support partition (3) by a hinge. The protective box (1) has a ladder (5) installed at the bottom. A cold water tank (9) is fixedly installed on the top of the protective box (1). A pump body (10) and a conveying pipe (11) connected to the pump body (10) are installed on both sides of the cold water tank (9). The output ends of the two conveying pipes (11) are respectively connected to the first cooling coil (12) and the second cooling coil (14). The first cooling coil (12) and the second cooling coil (14) are connected to a common connecting pipe (13).

2. The protective device for replacing small grinding plates in a coke oven according to claim 1, characterized in that: The protective box (1) is equipped with universal wheels with braking function at all four corners of its bottom.

3. The protective device for replacing small grinding plates in a coke oven according to claim 1, characterized in that: The conveyor block (6) is fixed below the ladder (5), and a threaded screw (7) with threaded engagement is installed inside the conveyor block (6). One end of the threaded screw (7) is connected to the drive motor (8).

4. The protective device for replacing small grinding plates in a coke oven according to claim 1, characterized in that: The first cooling coil (12) and the second cooling coil (14) are connected in series through the connecting pipe (13), and the first cooling coil (12) and the second cooling coil (14) are fixedly installed on the inner wall of the protective box (1).

5. The protective device for replacing small grinding plates in a coke oven according to claim 1, characterized in that: The first cooling coil (12) and the second cooling coil (14) are symmetrically distributed on both sides of the protective box (1). The first cooling coil (12) and the second cooling coil (14) are respectively connected to an independent pump body (10) and a delivery pipe (11) connected thereto.

6. The protective device for replacing small grinding plates in a coke oven according to claim 1, characterized in that: The protective box (1), the heat-insulating roof (2), the cold water tank (9), and the cooling coil assembly are all made of heat-insulating materials.

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