Cement Creation Line

one.1process description

 Simplified description of the approach

1.1..one Limestone crushing and transportation

Trucked to the website from the its mine, limestone is immediately discharged at an exclusive tipple, and crushed in the solitary-phase hammer crusher through hefty-obligation plate feeder .When the crusher is off, limestone is held in exceptional pile, later despatched to crushing program

1.1..2 Limestone pre-mixing & transportation

Crushed limestone is to be saved in the round preblending stockpile,and storage lifestyle of 3.74days. the crushed limestone will be continously piled through cantilever stacking belt conveyor in chevron shape,and then transversely reclaimed by scrapper reclaimer.the limestone after preblending will be conveyed to uncooked material proportioning station by belt conveyor.

one.1..three Clay & Marl crushing and Iron powder transportation

Trucked to the site from the its mine, clay and marl straight discharged at an unique tipple, and crushed in the crusher by means of medium plate feeder .When the crusher is off, clay is stored in exclusive pile, later despatched to crushing tipple by frontloader. After crushing, the clay and marl then be sent to the Accent Raw Content Preblending lose by belt conveyors.

The Iron powder with particle size £25mm is discharged from automated dump truck into hopper. Then be despatched to the Accessory Uncooked Content Preblending lose by belt conveyors.

one.one.4 United Preblending Lose & Transportation

Crushed clay, marl and Iron powder carried to Accent Raw Materials Preblending Drop by belt conveyor to saved. United preblending stockpile is composed of auxiliary preblending stockpile and raw coal preblending stockpile. The United Preblending Get rid of is a longitude stockpile.

one.1..5 Uncooked materials proportioning & transportation

Raw food proportioning shall use four silos, and weighing belt of frequency handle. The proportioning silo of limestone is of φ8m steel bin , although clay, marl and iron powder proportioning silo is of metal bin.

one.1..six Raw mill & squander gas treatment method at kiln inlet

Soon after meeting the demands of grindability take a look at, uncooked meal shall enter into vertical mill manufactured in China.

1.one.seven. Raw food blending silo & kiln inlet feeding

Uncooked food from uncooked mill is to be saved in IBAU silo, affect flow meter shall be used at kiln inlet feeding, and raw food is to be carried into pre-heater technique by belt type bucket elevator.

1.one.eight Kiln pre-heater & pre-calciner method

Kiln inlet employs one line 5 stage cyclone pre-heater and KSF calciner.

one.1.9 Calcining kiln & kiln outlet

Soon after pre-calcining processing, uncooked food is calcined into clinker in rotary kiln , with warmth use as 760kCal/kg-cl. High temperature clinker from rotary kiln is to be cooled sharply by cold air blown in below from grid plate in grate cooler. The temperature of clinker from grate cooler is ambient temperature + 65ºC, cooled and crushed clinker is taken into clinker silo by bucket chain conveyor.Component of higher temperature exhaust gas from cooler shall become secondary air other element shall become combustion air in calciner through tertiary air duct and component of it shall turn out to be drying supply for coal grinding in coal mill and the relaxation shall be released into the atmosphere following the treatment method of kiln outlet bag filter. Fine ash from heat exchanger and bag filter shall be carried into clinker silo by means of chain conveyor and clinker bucket chain conveyor.

1.one.10 clinker storage & transportation

The cooled and crushed clinker via chain bucket conveyer comes to  clinker silo for storage, with ability of 33000t, and storage existence of 16.five times. The clinker out of silo is sent to the clinker batch silo prior to cement mill by belt conveyor.

one.1.eleven Gypsum crushing and pozzolana transportation

The gypsum and pozzolona is transported to crusher for crushing .When the crusher is off, gypsum is held in unique pile, later on sent to crushing tipple by frontloader. After crushing, the gypsum then be despatched to the batch silo by belt conveyors.

Trucked to the web site from the its mine, pozzolana straight discharged at the additives shed. Then it is conveyed by means of forklift to particular unloading pit and via belt conveyer sent to proportioning silo.

1.1.twelve Cement proportioning and grinding

Cement proportioning shall use threeφ8m silos, and weighing belt of frequency handle.

Cement mill has two sets of circulating method. The ground cement will go by means of chute and elevator, then be immediately sent to Φ15m cement silos.

1.1.thirteen Cement storage and bulking

Cement from cement mill technique is stored in 4 silos , two of them equip bulk loading technique. Cement is carried to packing system from the silo bottom. The storage capacity for one cement silo is 8700t.

one.one.14 Cement packing

Cement from base of silos is lifted by the bucket elevator. Packing shall employs rotary packer with eight mouths, and cement bagged are transported by belt conveyor to bag cement truck loader method. There are 4 belt-loaders in truck loader system,for packaged truck loading.

one.1.15 Uncooked Coal Crushing&Transportation

Trucked to the website from the its mine, coal immediately discharged at an exclusive tipple, and crushed in the crusher by means of medium plate feeder .When the crusher is off, coal is retained in exceptional pile, later sent to crushing tipple by frontloader. After crushing, the coal then be sent to the uncooked coal Preblending lose by belt conveyors.

1.1.sixteen Pulverized coal planning and weighing method

Raw coal after measuring of belt scale is fed into  air swept mill for drying and grinding. The hot air for drying is specifically the exhaust gasoline from kiln outlet grate cooler. Discharged coal powder will be collected by particular substantial concentrated anti explosive bag filter, the collected powder then enters pulverized coal bin, through 2 measuring programs, which will be despatched to multichannel coal burner pipe at kiln outlet and coal burner pipe at kiln inlet calciner. The dusty fuel is purified by bag filter and then ejected to atmosphere.

1.1.seventeen Compressed air station

There are two air compressor stations in the website, that is, six sets of screw air-boosting compressor in all of 23m3/min as displacement and the pressure is .8Mpa. One air compressor station is set beneath the kiln pre-heater frame with 3 sets screw air-boosting compressor, the other which is around the proportioning silo of cement mill shop can meet the requires of every pneumatic valve, kiln pre-heater block-up, measuring system and pulsed bag dust collector and so on.