トンネルキルン選びの新たな注目ポイント
1. 成熟した技術ソリューションを選択して、生産ラインが標準に達し、生産能力に達するようにします.
トンネルキルンでレンガを焼成する場合, 生産に使用されるさまざまなパラメータは、原材料の基本的な特性に従って決定する必要があります.
長さ, 窯の幅と高さは、窯の出力に応じて計算されます. 長さを計算すると, 窯の幅と高さ, 原材料の加熱および冷却速度, 原料の焼成時間, 最高焼成温度と焼成温度範囲を考慮する必要があります. その他の要因.
2. 安定した焼成を実現する合理的なトンネルキルン方式のレイアウト.
トンネルキルンの定義によると, トンネルキルンには換気システムを装備する必要があります, 燃料燃焼システム, 車両エントリーシステム, シーリングシステム. これらのサブシステムは、トンネルキルンの作業システムを構成します. 各システムの緊密な連携により、トンネルキルンは正常に機能します.
キルンの焼成雰囲気の要件によると, キルンで使用されるファンの数と位置が装備されています, 扇風機の風圧は、焼成物の形状や窯の密度によって決まる, ファンの換気量は、出力に応じて決定されます。.
燃料の種類に応じて, 燃料燃焼システムの方法, どのような燃焼装置を使用するか, 燃焼装置の配置位置と数は、キルン内の温度ができるだけ均一になるようにする必要があります。. The main contents included in the entry system are entry mode and entry time interval.
The sealing system includes the sealing between the kiln car and the kiln body, the sealing between the kiln door and the kiln body, the sealing between the pipeline and the kiln body, and the sealing between the kiln cars. It is isolated to form a good firing space inside the tunnel kiln, 窯の中で半製品を最終製品に焼成できるように.
3. Recognize the importance of kiln car and ensure the stable quality of fired products.
The kiln car is an indispensable equipment in the production process of the tunnel kiln, and it is also the key equipment related to the performance of the tunnel kiln and whether it can be used normally.
In order to make the kiln car play the role of key equipment, the first thing is to maintain a good seal between the kiln car and the tunnel kiln body, so as to completely isolate the inside of the kiln from the outside of the kiln, so that the cold air outside the kiln cannot enter at will In the kiln, the hot air in the kiln will not leak into the kiln, so that the firing process in the kiln can be carried out smoothly.
Some factories have been in operation for less than a year, and the kiln car often has problems and needs to be replaced, which not only increases production costs, but also changes the understanding of tunnel kilns, and feels that tunnel kilns are inferior to other kilns. 実際には, the root cause is the insulation layer of the kiln car, and the seemingly simple insulation layer problem has not been properly handled.
Some kiln cars did not reduce the thickness and material of the thermal insulation layer, but the thermal insulation effect was still very poor. Why is the temperature under some tunnel kiln cars only 40℃~50℃, people can check it smoothly under the car, while the temperature under some cars is so high that people can’t get into the car at all. 実際には, the reason is very simple, it is caused by the gap in the insulation layer of the kiln car.
1. Construction materials must be guaranteed.
In the design process of the kiln, the material properties and usage requirements of various materials are considered, and the usage position and thickness of the materials are calculated. In order to ensure the construction quality, the use position and amount of materials shall not be arbitrarily changed during the construction process, nor the variety and quality grade of the materials used.
If it is to be replaced, the strength grade of the structural material must be higher than that of the original design material, and the thermal conductivity of the insulation material to be replaced must be lower than that of the original material.
2. Construction according to design requirements.
In the process of using the tunnel kiln, the technical requirements that should be met in the construction process, the construction difficulty and the solutions are fully considered. Many norms and standards are used in the design, including national standards and norms, provincial and ministerial-level standards and norms, local-level standards and norms, and industry standards and norms.
In the construction requirements, specific requirements are put forward for each part. These requirements are in line with the requirements of the construction specifications and standards. If you want to change them, you must refer to the corresponding items of the specifications and standards, and make changes according to the requirements of the specifications and standards. Change.
Problems and lessons in tunnel kiln construction
As we all know, there are three principles to produce good fired bricks: 原材料が基礎です, kiln equipment is the key, and management is the foundation. If it is not designed, the materials used are inferior, and the construction is arbitrarily commissioned, the kiln will become the biggest obstacle to the sustainable development of the production enterprise. There are the following fatal problems in the reconstruction and new construction of tunnel kilns, which should be paid great attention by colleagues in the whole industry:
1. The furnace design is unreasonable
Some enterprises do not pay attention to the process design of sintering kilns. There are generally simple kiln structures, unscientific drying kiln structures, and unreasonable air duct design, so that various tunnel kilns of different lengths appear in front of us. In order to meet the owner’s blind request to reduce the cost, many tunnel kilns are overweight and weak.
2. Most construction teams are unqualified, and the construction quality is worrying
キルン建造資格を持たないユニットの建造を恣意的に委託することは、現在最も顕著な問題の一つです。. 必要な職業訓練や建設要員の資格証明が不足している.
