Desulfurization Limestone Powder Grinding Machine, Large Vertical Roller Mill High Calcium Stone Powder Production Line

Desulfurization Limestone Powder Grinding Machine, Large Vertical Roller Mill High Calcium Stone Powder Production Line

Description

HVM Vertical Mill:
The Hefei Hengcheng HVM vertical grinding machine has advantages such as high grinding efficiency, low power consumption, large feed particle size, easy adjustment of product fineness, simple equipment process flow, small footprint, low noise, low dust, simple use and maintenance, low operating costs, and low consumption of wear-resistant materials.

Advantages and characteristics of limestone ultrafine vertical roller mill:
1. Vertical grinding mill have advantages such as high grinding efficiency, low power consumption, large feed particle size, easy adjustment of product fineness, simple equipment process flow, small footprint, low noise, low dust, easy use and maintenance, low operating costs, and low consumption of wear-resistant materials.
2. The comprehensive investment cost of limestone vertical mill is low.
3. Easy maintenance and low operating costs.
4. High grinding efficiency.
5. Stable production and quality.
6. High reliability.
7. Environmental protection.
8. High degree of automation.

Working principle:

The electric motor drives the grinding disc to rotate through the reducer, and the material falls into the center of the grinding disc from the feeding port. At the same time, hot air enters the grinding chamber from the inlet. Under the action of centrifugal force, the material moves towards the edge of the grinding disc and is crushed by the grinding roller when passing through the circular groove on the grinding disc. The crushed material is carried up by the high-speed airflow at the wind ring at the edge of the grinding disc, and large particles directly fall onto the grinding disc for re grinding. When the material in the airflow passes through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls onto the grinding disc for re grinding, and the qualified fine powder is discharged with the airflow, Collecting in the powder collection device is the product. Materials containing moisture are dried during contact with hot gases to achieve the required product moisture.

Limestone vertical mill Equipment structure and principle
The electric motor drives the reducer to rotate the grinding disc, and the material is fed into the center of the rotating grinding disc by the lock air feeding equipment. Under the action of centrifugal force, the material enters the powder grinding track. The grinding rod continuously rotates and presses iodine, causing the material to be crushed by squeezing, grinding, and shearing. At the same time, hot air is evenly sprayed upwards from the wind ring surrounding the grinding disc at high speed. The ground material is blown and dried, and enters the classifier with the wind. Qualified fine powder passes smoothly and is collected by the dust collection equipment to form the product. Unqualified coarse powder falls back onto the grinding disc under the action of the classifier blades, and is re ground with the newly fed material. This cycle completes the entire grinding process.
Main unit sectional structure: Adopting standard modular design and manufacturing of pressure device, as the mill capacity increases, the number of grinding rollers will correspondingly increase, which can meet the requirements of different materials, different product fineness and output.

It can be widely used in industries such as electricity, metallurgy, solid waste treatment, cement, chemical industry, non-metallic minerals, etc. It is mainly used for grinding cement raw materials, clinker, desulfurization limestone powder, slag, steel slag manganese ore, coal mine, phosphate ore and other materials. The materials ground range from high humidity (20-30% moisture content) to dry materials (<1%), from exceptionally difficult to grind to easily ground materials, with product fineness ranging from coarse to fine and a variety of grinding types.

Technical Data

Re:The data based on Mohs'hardness 3-4 material

Limestone Bond Index≤13kwh/t

Advantages and characteristics
Grinding efficiency is high, energy consumption is low, and compared to ball milling, energy consumption is 40-50% lower. It has a large single machine production capacity and can utilize low valley electricity.
High degree of automation
Adopting a PLC fully automatic control system and capable of remote control, it is easy to operate, easy to maintain, and reduces labor costs.
Stable product quality
The material stays in the grinding machine for a short time, reducing repeated grinding. The product has a uniform particle shape, narrow particle size distribution, good fluidity, strong adaptability, and a very low iron content, high whiteness and purity.
Low operation and maintenance costs
The grinding roller can be flipped out of the machine using a hydraulic device, making maintenance operations convenient. The grinding roller sleeve can be flipped over for use, extending the service life of wear-resistant materials with low wear. The lining plates of the grinding roller and grinding disc are made of special materials, which have a long service life.
Low noise environmental protection
The entire system has low vibration and low noise. It adopts an overall sealed negative pressure operation system, an air box pulse dust removal system, and no dust overflow, basically achieving a dust-free workshop.
Strong drying ability
Directly blowing hot air, the hot air comes into direct contact with the material inside the mill, with strong drying ability. The maximum moisture content of the feed can reach 15%, without the need for an additional dryer, saving equipment investment and energy consumption costs.
High reliability
Adopting a grinding roller limiting device to avoid severe vibration caused by material breakage in the mill, a new type of grinding roller sealing device is adopted, which is reliable and does not require a sealing fan, further reducing the oxygen content in the mill and achieving excellent explosion suppression performance.
Low comprehensive investment cost
Integrating crushing, drying, grinding, grading, and conveying, the process flow is simple, the structural layout is compact, and the land area is small, only 50% of that of ball milling. It can be arranged outdoors, with low construction costs, directly reducing investment costs.

Hefei Hengcheng Industrial Equipment Technology Co., Ltd. (hereinafter referred to as Hengcheng) was established in 2008. The company is located in Hefei, Anhui, a famous science and education city in China. It is a national-level high-tech enterprise and technology-based enterprise specializing in powder industry technology and equipment R&D, manufacturing, sales and service. The company has passed the ISO9001 international quality system certification.

Our company's main products : Vertical Coal Mill,Limestone Vertical Mill,Vertical Raw Mill,Slag Grinding Mill,Gypsum Grinding Mill,Calcite Mill,VRM Cement Mill,Bentonite Grinding Mill,Dolomite Grinding Mill,Bauxite Grinding Mill and pneumatic conveying system equipment. Among them, the grinding system equipment includes HVM vertical mill, rotary air lock feeder, and pressure-resistant sealed metering feeder. The products of the pneumatic conveying system equipment include PCD type positive pressure dense phase pneumatic conveying bin-type pump, PJP type positive pressure dilute phase pneumatic conveying jet pump, and HL type high-efficiency pneumatic fluidized blanking and blockage removal device.

Since its establishment, the company has always adhered to the development concept of "Based on Industry and Equipped in the World", and is committed to providing domestic and foreign customers with a complete set of system solutions in the powder industry field covering powder industry preparation, engineering design, engineering general contracting and technical services and consulting. Program. The company's core technology products have been widely used in the powder processing fields of building materials, metallurgy, chemical industry, heat, energy, electric power, lime kiln, pellets, mineral processing (including metal and non-metallic minerals), port warehousing and logistics and other industries.

The company has a professional technical team composed of high-quality talents such as experts and scholars, senior engineers and postgraduates who have won the National Science and Technology Progress Award and participated in the formulation of relevant industry standards. Practical experience, has rich engineering practice experience and theoretical basis. At the same time, the company has established technical cooperation and exchange relations with a number of key universities, absorbed the cutting-edge technologies in the powder industry at home and abroad, and closely followed the development trend of the powder industry, so as to provide customers with advanced and reliable powder equipment and various professional services. Technical Services.

Aiming at the two important links of powder preparation and powder transportation in the powder industry, the company has deeply studied the physical and chemical properties of various types of powder materials in different industries and fields after years of technical accumulation and a large number of engineering practices. On this basis, we have developed powder processing technology and complete sets of equipment that are highly targeted, safe, reliable, efficient and energy-saving.

We have a professional technical team composed of experts and scholars, senior engineers and postgraduates who have won the National Science and Technology Progress Award and participated in the formulation of relevant industry standards. All team members have more than ten years of experience in large state-owned design institutes in the industry Experience, has a wealth of engineering practice experience and theoretical basis. It can provide professional and systematic engineering design services for customers in various industries involving grinding system and pneumatic conveying system engineering, and provide a complete set of solutions in the field of powder engineering.

We have undertaken a large number of domestic and foreign (currently the company exported to Indonesia, Vietnam, the Philippines, Pakistan, Egypt, Yemen, Saudi Arabia, Congo and other countries and regions in the world) the metallurgical industry limestone powder milling and pneumatic powder conveying projects and coal powder preparation And pneumatic conveying project, lime kiln industry pulverizing and pneumatic powder conveying project, coal powder preparation and pneumatic conveying project, cement industry grinding system and conveying system renovation project and other engineering design projects, the design of the engineering project equipment selection is reasonable, The design scheme is scientific and reasonable, concise, practical, and cost-effective, all of which have reached or exceeded the expected indicators, and have been highly recognized and praised by users. The project has won the company's reputation in the industry.

Our goal: to sell the best machines at the best prices with industry-leading customer service. We personally know each of our customers, always adhering to the development concept of "Focus On Powder,Equipping The World", we are committed to providing powder industry services covering powder industry preparation, engineering design, engineering general contracting and technical services and consulting for customers around the world. A complete set of system solutions in the field.

For more detailed information on our Powder Industry Technology and Equipment, please do not hesitate to contact us! We welcome your inquiries, and look forward to working with you.