Lime production equipment

The chemical name of hydrated lime is calcium hydroxide,which is an important inorganic compound with wide applications in many fields such as construction,environmental protection,chemical industry,agriculture,etc.From masonry mortar and plastering mortar in the construction industry,to wastewater treatment and flue gas desulfurization in the environmental protection field,to regulating soil acidity and alkalinity in agriculture,hydrated lime plays an indispensable role.The calcium hydroxide equipment is the key to converting raw materials such as limestone into hydrated lime,and its performance and process directly affect the quality and production efficiency of hydrated lime.

Hydrated lime is produced through the digestion reaction between quicklime and water,which is a strong exothermic process that releases a large amount of heat energy.In industrial production,specialized equipment is needed to control reaction conditions,ensure smooth and effective reaction,and effectively manage and utilize the heat generated during the reaction process.

Limestone is the main raw material for producing hydrated lime,which usually requires crushing treatment to reduce its particle size to a suitable range,in order to improve the efficiency of subsequent calcination and digestion reactions.Common crushing equipment includes jaw crushers,impact crushers,etc.Jaw crusher is suitable for coarse crushing and can break large limestone into smaller particles;The impact crusher is used for medium and fine crushing,which can further crush limestone to finer particle size,meeting the requirements of calcination equipment for raw material particle size.

Lime kiln is the core equipment for producing quicklime.Its function is to calcine the crushed limestone at high temperature,decomposing calcium carbonate into calcium oxide and carbon dioxide.There are many types of lime kilns,commonly including vertical kilns,rotary kilns,etc.

Vertical kiln:With a relatively simple structure and low investment cost,it is suitable for small-scale production.It usually consists of kiln body,feeding device,ash discharge device,and ventilation system.Limestone is added from the top of the kiln and moves from top to bottom inside the kiln,exchanging heat with hot air flowing from the bottom of the kiln.It is gradually calcined into quicklime and finally discharged from the bottom of the kiln.
During the production process of hydrated lime,a large amount of dust is generated,which not only pollutes the environment but also affects the health of workers.Therefore,dust removal equipment is essential.Common dust removal equipment includes bag dust collectors,cyclone dust collectors,etc.
Bag filter:It is an effective dust removal equipment that uses filter bags to filter dusty gases,trapping dust on the surface of the filter bags and discharging clean gases through the filter bags.The bag filter has the advantages of high dust removal efficiency,large processing air volume,and stable operation,and is widely used in dust control in the production of hydrated lime.
The equipment for producing hydrated lime is a complex system that covers multiple stages such as crushing,calcination,digestion,dust removal,drying,etc.Each stage's equipment plays a crucial role.Understanding the composition and working principle of equipment for producing hydrated lime can help enterprises choose suitable equipment,improve production efficiency and product quality,and also promote the sustainable development of the hydrated lime production industry.With the continuous advancement of technology,the equipment for producing hydrated lime will be constantly improved and innovated,providing better and more effective hydrated lime products for the development of various industries.