What are the parts included in the construction quotation for lime kiln construction
The construction project of lime kiln involves multiple collaborative links, and the construction quotation needs to be comprehensive in terms of equipment, civil engineering, and material costs. Below is a breakdown of the quotation structure from key sectors to help you accurately control your budget:
1. Core equipment cost of lime kiln
The equipment cost accounts for 40% -50% of the overall investment, covering the calcination system (rotary kiln/shaft kiln body), feeding mechanism (bucket elevator, belt conveyor), dust removal device (bag filter, desulfurization tower), automation control system (PLC control platform) and auxiliary equipment (fans, pumps). The unit price of imported brand equipment is usually 30% -50% higher than that of domestic equipment, but the failure rate is low and the service life is long, so the selection needs to be balanced according to production capacity requirements.
2. Construction costs for kiln bodies above positive and negative zero
This section includes the installation of kiln body steel structure, refractory material masonry, and insulation layer construction. Taking the daily production of 300 tons of vertical kiln as an example, the height of the kiln body is about 25 meters, the cost of steel structure production and installation is about 800000 to 1.2 million yuan, the cost of refractory brick (high alumina brick, magnesia brick) masonry is about 1.5 to 2 million yuan, and the construction cost of lightweight insulation layer is about 300000 to 500000 yuan. The difficulty of construction, such as high-altitude operations and irregular structures, will significantly affect the unit price.
3. Cost of specialized materials for kiln body
The material cost accounts for about 20% -30%, including refractory bricks, castables, anchoring components, insulation cotton, and steel for steel structures. The unit price of high-quality high alumina bricks is about 2000-3000 yuan/ton, and magnesium bricks can reach over 5000 yuan/ton. The material selection needs to match the temperature curve inside the kiln to avoid frequent kiln shutdowns and maintenance due to insufficient material temperature resistance.
Tip: The actual quotation should be based on geological conditions, environmental requirements (such as adding denitrification modules), and the urgency of the project schedule. It is recommended to choose a supplier that provides integrated services of "design procurement construction", which can optimize the overall cost by 10% -15%.
