Limestone Processing

Limestone introduction:

Limestone is an important road building material and an important raw material for calcium carbide and cement.It is a solvent limestone in the metallurgical industry. After superfine grinding, high-quality limestone is widely used in the manufacture of paper, rubber, paint, coating, medicine, cosmetics, feed, sealing, bonding, polishing and other products.The compressive strength of limestone is generally around 150 MPa, which belongs to soft rock. Therefore, the production process of limestone production line adopt the impact crusher.The Dewo limestone production line is equipped with a proven XF impact crusher,this kind of crusher is a high-efficiency impact crusher, which is very suitable for crushing limestone, sandstone and other materials. 95% of the broken products are less than 45mm.

Limestone processing:

Dewo limestone production line equipped with high performance impact crusher,this kind of crusher is a high-efficiency impact crusher, which is very suitable for crushing limestone, sandstone and other materials. 95% of the broken products are less than 45mm.

Firstly, the stone blasted from the mountain is uniformly fed into the jaw crusher through the feeder, and is initially broken.The coarsely crushed semi-finished product is conveyed to the impact crusher through a belt conveyor for further crushing.The crushed stone is conveyed to the vibrating screen through a belt conveyor to separate stones of different specifications.The stones that meet the customer’s particle size requirements are transported to the finished product pile by a belt conveyor.The stones larger than the size of the upper screen are returned to the impact crusher by the belt conveyor and broken again to form a closed loop.

Applications:

Chemical, cement, construction, refractory and other industrial sectors are used for coarse, medium and fine crushing of medium hardness materials.

Equipment configuration:

vibrating feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor

Limestone processing technology:

The limestone production line has high crushing efficiency, low power consumption, strong adaptability (especially suitable for medium and hard brittle materials), large crushing ratio, simplified production process and investment saving.

Remarks: The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

River Pebble Processing

River Pebble introduction:

The main chemical composition of the river pebble is silica, followed by a small amount of iron oxide and trace amounts of manganese, copper, aluminum, magnesium and other elements.It is an ideal building material with hard quality, natural stone properties resistant to pressure, abrasion and corrosion.

The river pebble production process uses gravel of 0-40mm as raw material.Using vertical shaft impact crusher (sand making machine) on the production line configuration,this crusher is a new sand making machine of Dewo. It is characterized by high crushing efficiency (with fine crushing and coarse grinding function), simple structure, convenient installation and maintenance, low running cost and excellent product granularity (in cube and needle-like content less).

Application fields:

Cement concrete, asphalt concrete and various stable soil materials in construction engineering, as well as road, bridge and culvert, tunnel light highway engineering.

Equipment configuration:

feeder, cone crusher, XV sand making machine, sand washing machine, YK6X series circular vibrating screen, belt conveyor, etc.

River pebble processing:

There are river pebble resources, which vary from place to place. Therefore, when configuring the equipment, the wear resistance of the solution should be put in the first place. Large particle size can refer to the crushing of granite and basalt; small particle size needs to be pre-screened to reduce production cost;

Take the river pebbles below 200mm as an example:The material is pre-screened in the raw material warehouse through the feeder and belt conveyor to the 1# vibrating screen. The material larger than 40mm enters the cone crusher to crush, and the 5-40mm enters the vertical impact crusher for crushing,0-5mm enters the sand washing machine, and the finished product is directly discharged after cleaning.The crushed product of the cone crusher enters the 2# vibrating screen and is screened.The return cone crusher larger than 40mm breaks and breaks again, forming a closed loop,less than 40mm into the vertical impact crusher crush.The material from the vertical impact crusher enters the 3# vibrating screen,more than 20mm returning vertical impact crusher to break, forming a closed loop.Material less than 20mm is transported to the finished product pile via a belt conveyor,according to the cleanliness of the raw materials, it is considered to send the materials of 0-5mm to the sand washing machine for cleaning.

River pebble processing technology:

The sand production line has reasonable configuration, high degree of automation, low operating cost, high breaking rate, energy saving and environmental protection, large output and easy maintenance. The machined sand produced meets the national construction sand standard, the product has uniform particle size, good granular shape and reasonable gradation.

Remarks: The equipment configuration of the sand production line is mainly determined by the customer’s specifications for the sand and the output and the use of the sand.We provide solution and technical support, configure the process according to the customer’s production site, and strive to achieve a reasonable and economical production line for customers.

Granite Processing

Granite introduction:

Granite, the main component of the continental crust, is a igneous rock formed by the condensation of magma below the surface, belonging to deep intrusive rocks.Granite is not easy to weather, beautiful in color, and its appearance can be kept for more than 100 years. In addition to being used as a high-grade architectural decoration, the hall floor, or the choice of open-air carving.Because granite is rarer than ceramics or other man-made materials, laying granite floors can greatly increase the value of large properties.Natural granite countertops have excellent temperature resistance and are the choice of all types of sheet metal processing.The granite structure is uniform, the texture is hard, the color is beautiful, and it is durable. It is a high-quality building stone and is known as the “king of rock”.In the building, granite can be used from the roof to the floor. If it is crushed, it can be made into cement or rock-filled dam.

Granite processing:

The granite production line is mainly based on the actual size of the granite and the customer’s requirements for product granularity,According to different production sites, Dewo provides process solutions and technical support to customers.It is also possible to design non-standard parts according to the actual installation conditions of the customer.

The processing of granite is divided into three stages: coarse crushing of jaw crusher, medium fine crushing of cone crusher and sand making of sand making machine.

The first stage: coarse crush

The granite bulk material is uniformly fed by the vibrating feeder through the silo, and conveyed to the jaw crusher for coarse crushing. After the coarsely crushed material is sieved by the vibrating screen, it is transported by the belt conveyor to the cone crusher to break and be finely crushed.

Second stage: fine crushing

After the granite conveyed to the cone crusher is finely crushed, it is sieved by a circular vibrating sieve, and the material of 40 mm or more is returned to the cone crusher to be broken again.

The third stage: sand making

The granite particles less than 40 mm after crushing are sent to impact crusher (sand making machine) for further crushing and shaping, and the material of 20 mm or more is returned to the sand making machine for fine crushing again. The material less than 20mm is sent to the circular vibrating screen for screening and packaging. If the granite needs to be cleaned, it can be sent to the sand washing machine for cleaning.

Applications:

Applications in industries such as hydropower, highways, and urban construction. The granularity of finished products can be combined and graded according to the different needs of users.

Equipment configuration:

vibrating feeder, jaw crusher, hydraulic cone crusher, sand making machine, vibrating screen, belt conveyor

Granite process technology:

The granite production line is launched by Dewo has high automation, high breaking rate, low operating cost, energy saving, environmental protection, uniform product size, good grain shape and reasonable grading.

Remarks:The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

Basalt Processing

Basalt introduction:

Basalt, the main component of the oceanic crust, is a basic volcanic rock. Basalt has the advantages of strong pressure resistance, low crushing value, strong corrosion resistance and good asphalt adhesion. It is an internationally recognized material for building stones for railways, railways and airport runways.Not only that, but basalt is also a high-quality aggregate of lightweight concrete for high-rise buildings. Because of its many pores and hard characteristics, blending it into concrete can reduce the weight of concrete, but it is also strong and soundproof. The advantages of heat insulation are favored by major building materials markets.

Basalt processing:

The processing of basalt is divided into three stages: coarse crushing, medium fine crushing and sand making. According to the actual material size of basalt and the customer’s requirements for product granularity, Dewo engineers can provide customers with basalt production line solutions and technical support, and we can also design non-standard parts according to the actual installation conditions of customers.

The first stage: coarse crush

The basalt bulk material is uniformly fed by the vibrating feeder through the silo, and conveyed to the jaw crusher for coarse crushing. After the coarsely crushed material is sieved by the vibrating screen, it is transported by the belt conveyor to the cone crusher to break and be finely crushed.

Second stage: fine crushing

After the basalt conveyed to the cone crusher is finely crushed, it is sieved by a circular vibrating sieve, and the material of 40 mm or more is returned to the cone crusher to be broken again.

The third stage: sand making

The basalt particles less than 40 mm after crushing are sent to impact crusher (sand making machine) for further crushing and shaping, and the material of 20 mm or more is returned to the sand making machine for fine crushing again. The material less than 20mm is sent to the circular vibrating screen for screening and packaging. If the basalt needs to be cleaned, it can be sent to the sand washing machine for cleaning.

Basalt processing technology:

The basalt production line launched by Dewo has high automation, high breaking rate, low operating cost, energy saving and environmental protection, uniform product size, good grain shape and reasonable grading.

Remarks:The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

Wet Sand Making

Production line introduction:

Wet sand making process, the new sand making machine is used to replace the rod mill with higher running cost, which greatly improves the reliability of the artificial sand production line and ensures the product quality.

Applicable materials:

Hard rock: such as granite, basalt, limestone, etc.;

soft rock: such as suspected limestone, glutenite, argillaceous shale, marl, etc.

Application fields:

Hydropower, highway, urban construction and other industries, the finished product size can be combined and graded according to the different needs of users.

Equipment configuration: feeder, vertical impact crusher, vibrating screen, sand washing machine, fine sand recovery device, etc.

Wet sand making performance:

(1) The process design is scientific and reasonable, and the quality and output of the mechanism sand are effectively guaranteed;

(2) It can crush medium, high hardness and extra hard materials;

(3) High automation configuration and a large reduction in the cost of human resources;

(4) The fine sand grade of the finished product is fine and the fineness modulus is adjustable;

(5) The equipment operates with low noise and less dust pollution.

Introduction of wet sand making process:

Wet sand making process, the new sand making machine is used to replace the rod mill with higher running cost, which greatly improves the reliability of the artificial sand production line and ensures the product quality.

This process is designed for materials below 40mm(Materials are processed by jaw crusher, cone crusher and impact crusher to 40mm or less).The vertical shaft impact crusher (XV sand making machine) is used in the production line configuration. This crusher is a new sand making machine from Dewo.

The utility model has the advantages of high crushing efficiency (having fine crushing and coarse grinding function), simple structure, convenient installation and maintenance, low running cost, excellent product granular shape (in the form of cubes and needle-like content).

Remarks: The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

Dry Sand Making Processing

Production line introduction:

The dry sand production line is equipped with a high-performance XV sand making machine and a coarse-fine powder separator. It is energy-saving, environmentally friendly, small in footprint, compact in production line and high in automation.

Applicable materials:

Hard rock: such as granite, diorite, basalt, conglomerate, sandstone, limestone, argillaceous limestone, dolomite, gneiss, quartzite, marble, slate, etc. Soft rock: such as suspected limestone, glutenite, argillaceous shale, argillaceous conglomerate, marl, mudstone, etc.

Applications: Applications in industries such as hydropower, highways, and urban construction. The granularity of finished products can be combined and graded according to the different needs of users.

Equipment configuration:

vibrating feeder, jaw crusher, cone crusher, impact crusher, vibrating screen, coarse powder separator

Sand production line process introduction:

0-40mm aggregate through hanging feeder,the belt conveyor is transported to the vertical impact crusher to break,screening of the material from the vertical shaft impact crusher on a two-layer vibrating screen,material larger than 5mm returns to impact and breaks again,form a closed loop.3-5mm material can be partially finished according to the discharge requirements,some of the materials returned to the impact and broke again.Material less than 3mm enters the coarse powder separator,separate 0-0.075 mm of stone powder.0.075-3mm and 3-5mm material composition make up finished product pile.Pulse bag type dust collector can be selected according to environmental protection requirements.

Remarks:

The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

Dry sand making process advantages:

(1) Fineness modulus and grading area adjustment: Sand making machine and sand stone powder separator are equipped with frequency conversion speed control system, which can adjust the production mode according to the characteristics of raw materials, and achieve the quick and convenient adjustment mechanism of sand fineness modulus and stone powder.It is a high quality production process.

(2) Adjustment of stone powder content (sand equivalent): The content of stone powder is adjusted to the requirements of use by the sand and stone separator.

(3) Good environmental performance: it is equipped with a special dust removal system, the dust is small, and the noise during operation is less than 90dB.

(4) Small footprint, compact production line and high degree of automation: the plane area is small, and only 2 staff members are required for production and operation.

Dewo dry sand making process features:

(1) The process design is scientific and reasonable, and the quality and output of the mechanism sand are effectively guaranteed;

(2) It can crush medium, high hardness and extra hard materials;

(3) High automation configuration and a large reduction in the cost of human resources;

(4) The fine sand grade of the finished product is fine and the fineness modulus is adjustable;

(5) The equipment operates with low noise and less dust pollution.

Aggregate For Highway Building

Aggregate for highway building Introduction

In the construction of expressway, high requirements are placed on the aggregate shape and gradation of concrete aggregates, especially the pin-like content in basalt (diabase) gravel. In order to solve the requirements of particle size and gradation, particle shape, consistency of particle composition, cleanliness and particle content of 0.075mm, Dewo has added a new sand making machine in the production line configuration to better meet the highway cement and asphalt. Wait for the requirements of sand and gravel aggregates.

Applicable materials: granite, basalt, diabase and other hard materials

Application areas: highways, urban construction, airport construction and other industries

Equipment configuration: vibrating feeder, jaw crusher, hydraulic cone crusher, circular vibrating screen, vertical shaft impact crusher, belt conveyor

Production line details

In the construction of expressway, high requirements are placed on the aggregate shape and gradation of concrete aggregates, especially the pin-like content in basalt (diabase) gravel. In order to solve the requirements of particle size and gradation, particle shape, consistency of particle composition, cleanliness and particle content of 0.075mm, Dewo has added a new sand making machine in the production line configuration to better meet the highway cement and asphalt. Wait for the requirements of sand and gravel aggregates.

Expressway aggregate production process

The mined stone is firstly fed by the vibrating feeder to the jaw crusher for preliminary crushing. The secondary crushing is completed by the cone crusher. The material broken by the cone is sieved on the vibrating screen. The material larger than 40mm is returned to the cone and broken again. A closed loop is formed, and the material less than 40 mm enters the vertical impact to break and shape. The finished product sieved by the vertical impact material is sieved, and the returning vertical impact breaking cycle of more than 20 mm is broken, and the materials less than 20 mm are conveyed to the respective finished material piles by the belt conveyor.

Expressway aggregate production line performance

1. The sandstone production line is highly automated;

2. It has high production efficiency, low operating cost, large output and high profit;

3. The size of the discharge material is adjustable, the breaking rate is high, and energy saving;

4. The finished stone has uniform particle size and good granular shape, which is in line with the national high-speed material standard.

Production process of aggregate for highway

Andesite Processing

Andesite introduction:

Andesite is a neutral calc-alkaline eruptive rock. Its composition is equivalent to diorite. The Andesite sand production line has the characteristics of reliable performance, reasonable design, convenient operation and high work efficiency.

Application fields:

Applications in industries such as hydropower, highways, and urban construction

Equipment configuration:

jaw crusher, cone crusher, sand making machine, vibrating feeder, vibrating screen, iron remover and belt conveyor

Andesite processing:

The material is sent to the jaw crusher through the feeder to be coarsely crushed, and then sent to the cone crusher for medium or fine crushing.The crushed product of the cone crusher enters the vibrating screen and is screened.The return cone crusher larger than 40mm breaks and breaks again, forming a closed loop,less than 40mm into the vertical impact crusher crush.The material from the vertical impact crusher enters the vibrating screen,more than 20mm returning vertical impact crusher to break, forming a closed loop.Material less than 20mm is transported to the finished product pile via a belt conveyor,according to the cleanliness of the raw materials, it is considered to send the materials of 0-5mm to the sand washing machine for cleaning.

Andesite processing technology:

The Andesite crushing production line carefully developed by Dewo technicians has the characteristics of reasonable configuration, high degree of automation, low operating cost, high breaking rate, energy saving and environmental protection, large output and easy maintenance. The sand and gravel aggregate produced meets the national building sand standard. The product has uniform particle size, good grain shape and reasonable gradation.The equipment configuration of the crushing production line is mainly determined by the customer’s specifications for the sand and the output and the use of the sand. We provide the solution and technical support, configure the process according to the customer’s production site, and strive to make a reasonable and economical production line for the customer.

Remarks:The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.

Diabase Processing

Diabase introduction:

The diabase composition is equivalent to the diagenetic gabbro.Crystalline, fine-medium, dark gray-grey black,dark gray, grayish black.The diabase is a superior building material and is an excellent asphalt concrete gravel for roads.

Equipment configuration:

jaw crusher, hydraulic cone crusher, VSI sand making machine, vibrating screen, feeder, belt conveyor

Diabase processing:

Diabase crushing/sand making production line has the characteristics of reasonable configuration, high degree of automation, low operating cost, high breaking rate, energy saving and environmental protection, large output and easy maintenance.The sand and gravel aggregate produced meets the national construction sand standard, and the product has uniform particle size, good granular shape and reasonable gradation.

The processing of diabase is divided into three stages: coarse crushing, medium fine crushing and sand making.

The first stage: coarse crush

The bulk diabase material is uniformly fed by the vibrating feeder through the silo.It is conveyed to the jaw crusher for coarse crushing. After the coarsely crushed material is sieved by vibrating sieve, it is conveyed by the belt conveyor to the cone crusher to break and be finely crushed.

The second stage: medium and fine crushing

The diabase that has been transported to the cone crusher is crushed and sifted by a circular vibrating screen. The material of 40 mm or more is returned to the cone crusher broken again.

The third stage: sand making

The diabase particles less than 40 mm after crushing are sent to an impact crusher (sand making machine) for further crushing and shaping, and the material of 20 mm or more is returned to the sand making machine for fine crushing.The material less than 20mm is sent to the circular vibrating screen for screening and packaging. If the basalt needs to be cleaned, it can be sent to the sand washing machine for cleaning.

Diabase processing technology:

The diabase sand production line carefully developed by Dewo technicians has the characteristics of reasonable configuration, high degree of automation, low operating cost, high breaking rate, energy saving and environmental protection, large output and easy maintenance. The sand and gravel aggregate produced meets the national building sand standard. The product has uniform particle size, good grain shape and reasonable gradation.

Remarks:The production line is mainly based on the actual material size and the customer’s requirements for product granularity. According to different production site conditions, Dewo engineers can provide customers with process planning and technical support, and we can also design non-standard according to the actual installation conditions of customers and supporting components, etc., we strive to achieve a reasonable and economical production line for customers.