The products of Shanghai micro powder technology are widely used in various industries of modern industry, such as metallurgy, building materials, chemical industry, mining, papermaking, ceramics, plastics, composite materials, rubber and coatings.
Project Name: 5 ton limestone powder grinding plant in India Raw material: 0-20mm limestone (Cao > 81.6%, humidity < 0.1% H2O) Finished product size: 800 mesh calcium carbonate powder Equipment configuration: 1 sets of HGM100 ultra fine grinding mill Purpose of finished product: Plastics, coatings, adhesives, etc
Limestone
Limestone is mainly composed of calcium carbonate (CaCO3). Lime and limestone are a large number of raw materials used in building materials and industry. Limestone can be directly processed into stone and fired into quicklime.
Limestone Powder Uses
1. Limestone powder can be used as filler, such as filler for epoxy adhesive; 2. As raw material, it can be used to produce calcium carbide, soda ash, bleaching powder, etc. it is also used in tanning, wastewater purification, calcium hydroxide and various calcium compounds; 3. It can be used as building materials, metallurgical flux, cement accelerator and fluorescent powder flux. 4. It can also be used for refractory and desiccant; 5. Used for acid wastewater treatment and sludge conditioning;
Limestone Powder Grinding Process
Step 1: crushing
Large limestone materials are crushed by the crusher to the feeding fineness (15mm-50mm) that can enter the limestone grinding mill.
Step 2: grinding
The crushed small limestone materials are sent to the silo by the elevator, and then sent to the grinding chamber of the grinding mill evenly and quantitatively by the vibrating feeder for grinding. Raymond Mill and YGM high pressure grinding mill are generally used for fine powder processing; HGM ultrafine grinding mill and CLUM vertical mill are selected for ultra-fine powder processing; European coarse mill and straight through centrifugal mill are selected for coarse powder processing.
Step 3: grading
The milled limestone materials are graded by the powder concentrator, and the unqualified powder is graded by the powder concentrator and returned to the main machine for re grinding.
Step 4: powder collection
The powder conforming to the fineness flows through the pipeline with the gas and enters the dust collector for separation and collection. The collected finished powder is sent to the finished product silo by the conveying device through the discharge port, and then packaged by the powder loading tanker or automatic packer.
Processing scheme
After crushed by hammer crusher, the limestone become small limestone lumps less than 20mm and are sent to storage hopper by elevator, and then evenly sent to the upper distribution plate of the turn plate by vibrating feeder and sloping feeding pipe.
When the ultra fine grinding mill is at work, the main bearing and each dial are driven by electromotor of main equipment through reducer, and all the grinding rollers are rolling in the ring channels driving by dial through plunger.
The limestone are driven to the edge of the turn plate by the centrifugal force and fall down into the grinding chambers where the materials are repeatedly pressed, crushed and grinded by the rollers.
Then the limestone fall into multiple layers and to be crushed and ground continuously to micro powder. The high-pressure air blower constantly inhales air within the grinding mill and, in turn, the airflow with crushed materials are brought to the classifier whose high-speed impeller will screen the airflow: the unqualified particle size will fall and return to the mill for being reground while the qualified particle size mixed with air will go into the cyclone powder collector.
Most of the qualified limestone powders will fall and exit from the discharging valve at the bottom; a small proportion of the fine powders, with airflow, moves to the dust cleaner, and clings to the surface of the filter bags.
At the same time, the fine limestone powders clinging to the surface fall down by the sudden vibration of the filter bags, which is caused by the instantly ejected high-pressure gas controlled by the pulse valve.
The limestone powder from the above two lots are sent by the conveyor at the bottom to get finished powders packed. In addition, filtered clean air will be emitted from the air outlet of muffler in the end.
WHO WE ARE?
SBM Ultrafine Powder Technology Co., Ltd. is one of the premier manufacturers for equipment in the mining, grinding, coating,packing, recycling and process industries.
With SBM Ultrafine Powder Technology unique knowledge and innovative solutions, SBM helps many customers improve their operational efficiency, reduce risks and increase profitability.
SBM Ultrafine Powder Technology products can be divided into crushing equipment, grinding equipment, drying equipment, screening equipment, conveying equipment and auxiliary equipment.
SBM Ultrafine Powder Technology products have passed the quality system certification of ISO9001:2008, and the European CE certificate.
SBM sincerely welcome local distributors join us together to shape SBM Ultrafine Powder Technology brand and delivery high value-added equipment products in the global market around world.
SBM Ultrafine Powder Technology is an international high-tech enterprise which integrates the research and development, production and sales.
HOW TO BUY?
1. Engineering project design
2. Equipment purchasing and manufacturing
3. Engineering project construction
4. Installation and Commissioning service
5. After-sales service
WHICH MODELS CAN BE SELECTED FOR PROCESSING Limestone POWDER?
Vietnam
China
