6.78 m tamping coke oven door frame sealing method
By using high-temperature resistant ceramic fiber blankets and adhesives to seal the gap between the door frame and the protective plate of the tamping coke oven, the problem of smoke from the tamping coke oven is solved, and efficient sealing effect and environmental compliance are achieved.
Patent Information
- Application Number
- CN202510363535.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-07-11
AI Technical Summary
During the production process of the 6.78m tamping coke oven, the sealing material between the furnace door frame and the protective plate is prone to high temperature open flame burning failure, resulting in frequent smoke, difficulty in maintenance and environmental protection failure.
The gap between the furnace door frame and the protective plate is sealed with high-temperature resistant ceramic fiber blanket, the ceramic fiber felt is pasted with high-temperature adhesive, and tied and fixed by fine wire, and the installation and replacement of the sealing material is combined with the coking push truck equipment.
It achieves a good sealing effect during coke oven production, reduces smoke, extends the service cycle of sealing materials, and meets environmental protection requirements.
Smart Images
Figure CN120290198A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of metallurgical industry construction, and specifically, it is a sealing method for the oven door frame of a 6.78m stamping coke oven. Background Art
[0002] With the development of the national metallurgical industry, 6.78m stamping coke ovens are gradually widely constructed, and the produced coke has excellent quality and low cost. However, during the long-term production process, there are often phenomena of smoke and fire at the oven door frame position, resulting in high maintenance costs and the inability to completely eliminate the smoke phenomenon, leading to non-compliance with environmental protection standards and restricted production. In the long-term production operation state of traditional 6.78m stamping coke ovens, when the coke oven pusher removes the oven door, the long-term impact and collision on the oven door frame cause the sealing material between the oven door frame and the protection plate to fall off, and the high-temperature resistant ceramic fiber rope used for sealing is exposed. During production, it is continuously burned by high-temperature open flames, losing its sealing function and gradually generating smoke. Once the smoke phenomenon occurs at the oven door frame, the temperature at the oven door frame position is high, making it difficult for maintenance personnel to operate. The smoking points are not fixed, and maintenance personnel usually need to use sealing materials for temporary sealing by means of a ladder platform, with low efficiency and the inability to completely eliminate the smoke phenomenon.
[0003] Therefore, the known sealing methods for coke oven door frames have the above-mentioned various inconveniences and problems. Summary of the Invention
[0004] The purpose of the present invention is to propose a sealing method for the oven door frame of a 6.78m stamping coke oven that seals the gap between the oven door frame and the protection plate.
[0005] To achieve the above purpose, the technical solution of the present invention is: A sealing method for the oven door frame of a 6.78m stamping coke oven, characterized by including the following steps: a. Analyze the design drawings. According to the structure of the smoking part of the oven door frame, the concentrate powder at the gap between the coke oven door frame and the protection plate is used to protect the ceramic fiber rope from open flame burning and also has a certain sealing effect. The ceramic fiber rope in the gap between the oven door frame and the protection plate plays a sealing role. The occurrence of the smoke phenomenon indicates that the ceramic fiber rope in the gap between the oven door frame and the protection plate has lost its sealing function, and it is necessary to replace it with a high-temperature resistant ceramic fiber blanket with better sealing performance for sealing; b. Remove the oven door frame damaged by open flame burning of the ceramic fiber rope to the ground, paste the ceramic fiber rope with an adhesive, fully cover and paste the ceramic fiber felt at the gap part with the protection plate, and tie it firmly with thin iron wire; c. After the pusher removes the oven door, install a high fire shield at the bottom of the coke oven carbonization chamber, remove the grinding plate at the bottom of the oven door frame, and then place the oven door in place; d. The operator stands on the lifting platform of the coke pusher to remove the T-bolts of the furnace door frame where the ceramic fiber rope needs to be replaced, and removes the furnace column spring covers on both sides of the door bolt of the furnace door. e. Lift the furnace door frame with the ceramic fiber rope replaced on the ground to the furnace door of the door taking machine of the coke pusher, and fix the door bolt of the furnace door on the hook of the furnace door frame with a U-bolt and a pressing plate combination device, and use the coke pusher for alignment and installation.
[0006] The sealing method of the furnace door frame of the 6.78m stamping coke oven of the present invention can also be further realized by the following technical measures.
[0007] In the foregoing method, the binder is a high-temperature binder.
[0008] In the foregoing method, the ceramic fiber rope is a φ25 mm ceramic fiber rope.
[0009] In the foregoing method, the ceramic fiber felt is a ceramic fiber felt with a thickness of 25 mm before compression.
[0010] In the foregoing method, the fire baffle is a 1m high fire baffle.
[0011] In the foregoing method, the joint of the ceramic fiber felt is set as an L-shaped joint.
[0012] After adopting the above technical solution, the sealing method of the furnace door frame of the 6.78m stamping coke oven of the present invention has the following advantages: 1. Less materials are used, and only high-temperature resistant ceramic fiber felt is used. 2. Meeting the current environmental protection control requirements, the sealing effect is good during the production of the coke oven. 3. The service life of the materials is long, and it can be used for 8 to 10 years after being replaced once. Description of the Drawings
[0013] Figure 1 It is a schematic diagram of the sealing structure of the furnace door frame of the coke oven according to the embodiment of the present invention; Figure 2 It is a schematic diagram of the laying of the ceramic fiber felt according to the embodiment of the present invention, and the laying is divided into upper, middle and lower ceramic fiber felts. Detailed Embodiment
[0014] The present invention will be further described below in conjunction with the embodiments and their accompanying drawings.
[0015] Embodiment 1 Now please refer to Figure 1 and Figure 2 , the sealing method of the furnace door frame of the 6.78m stamping coke oven of the present invention includes the following steps: a. Analysis of the design drawings. It can be seen from the structural design drawing of the smoking part of the oven door frame that the fine ore powder at the gap between the coke oven door frame and the protection plate is used to protect the ceramic fiber rope from being burned by open fire, and at the same time plays a certain sealing effect. The ceramic fiber rope in the gap between the oven door frame 2 and the protection plate 1 plays a sealing role. If there is a smoking phenomenon, it means that the ceramic fiber rope at the gap between the oven door frame and the protection plate has lost its sealing function. The solution is to replace the ceramic fiber rope with a high-temperature-resistant ceramic fiber blanket with better sealing performance at this gap, and paste ceramic fiber felt in the gap between the ceramic fiber ropes to achieve the sealing effect.
[0016] b. Demolish the oven door frame with the ceramic fiber rope damaged by open fire to the ground, clean the part where the sealing material is pasted, paste the φ25 mm ceramic fiber rope with high-temperature binder, and fully paste the ceramic fiber felt with a thickness of 25 mm before compression at the gap with the protection plate. The laying is divided into upper, middle, and lower ceramic fiber felts, and they are firmly tied with thin iron wires; when using the ceramic fiber felt, first paste it with sodium silicate binder and tie it firmly with thin iron wires at intervals of 2 m.
[0017] c. After the door removing machine of the coke pusher removes the oven door, install a 1 m high fire baffle at the bottom of the coke oven carbonization chamber, remove the grinding plate at the bottom of the oven door frame, and then place the oven door in place.
[0018] d. The operator stands on the lifting platform of the coke pusher to remove the T-shaped bolts of the oven door frame where the ceramic fiber rope needs to be replaced, leaving 4 T-shaped bolts at the upper part and 2 T-shaped bolts at the lower part, and remove the spring covers of the oven columns on both sides of the oven door pressure bolts.
[0019] e. Lift the oven door frame with the replaced ceramic fiber rope on the ground to the oven door of the door removing machine of the coke pusher, and fix the oven door pressure bolts on the hook of the oven door frame with a combination device of U-shaped bolts and pressing plates, and use the coke pusher for alignment and installation.
[0020] The present invention has substantial features and remarkable technical progress. The sealing method of the 6.78 m stamping coke oven door frame of the present invention can quickly and effectively solve the problem of smoking at the oven door frame during the production cycle of the 6.78 m stamping coke oven. By combining with production vehicles, the sealing material between the oven door frame and the protection plate is replaced, so as to completely cure the smoking phenomenon at the gap between the oven door frame and the protection plate.
[0021] The sealing method of the 6.78 m stamping coke oven door frame of the present invention has been actually applied in the upgrading and transformation project of Shanxi Meijin Coal Chemical Industry, and successfully cured the smoking phenomenon at the oven door frame.
[0022] The above embodiments are only for illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can make various transformations or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by each claim.
Claims
1. A sealing method for the oven door frame of a 6.78m stamping coke oven, characterized in that The steps include: a. Analyze the design drawings. According to the structure of the smoking part of the oven door frame, the concentrate powder at the gap between the coke oven door frame and the protection plate is used to protect the ceramic fiber rope from being burned by open fire and also has a certain sealing effect. The ceramic fiber rope in the gap between the oven door frame and the protection plate plays a sealing role. The appearance of smoking indicates that the ceramic fiber rope in the gap between the oven door frame and the protection plate has lost its sealing function, and it is necessary to replace it with a high-temperature-resistant ceramic fiber blanket with better sealing performance for sealing; b. Demolish the oven door frame damaged by open fire burning of the ceramic fiber rope to the ground, paste the ceramic fiber rope with an adhesive, fully cover and paste the ceramic fiber felt at the gap with the protection plate, and tie it firmly with thin iron wire; c. After the coke pusher door machine removes the oven door, install a high fire baffle at the bottom of the coke oven carbonization chamber, remove the wear plate at the bottom of the oven door frame, and then place the oven door in place; d. The operator stands on the lifting platform of the coke pusher to remove the T-bolts of the oven door frame where the ceramic fiber rope needs to be replaced, and remove the spring covers of the oven columns on both sides of the oven door pressure bolt; e. Lift the oven door frame with the replaced ceramic fiber rope on the ground to the oven door of the coke pusher door machine, and fix the oven door pressure bolt on the hook of the oven door frame with a combination device of U-bolts and pressing plates, and use the coke pusher for alignment and installation.
2. The sealing method of the furnace door frame of the 6.78m stamping coke oven according to claim 1, characterized in that, The adhesive is a high-temperature adhesive.
3. The sealing method of the oven door frame of the 6.78m stamping coke oven according to claim 1, characterized in that, The ceramic fiber rope is a φ25 mm ceramic fiber rope.
4. The sealing method of the oven door frame of the 6.78m stamping coke oven as described in claim 1, characterized in that, The ceramic fiber felt is a ceramic fiber felt with a thickness of 25 mm before compression.
5. The sealing method of the oven door frame of the 6.78m stamping coke oven according to claim 1, characterized in that, The fire baffle is a 1 m high fire baffle.
6. The sealing method of the oven door frame of the 6.78m stamping coke oven according to claim 1, characterized in that, The joint of the ceramic fiber felt is set as an L-shaped joint to meet the sealing effect.