Sand making equipment includes PCL straight impact crusher, commonly known asVertical impact breaking, that is, sand making machine, PCLVertical shaft impact crusher(Sand making machine), sand making machine (stone sand making machine), etc.
First, the stone is preliminarily crushed by the coarse crusher, and then the produced coarse material is conveyed by the belt conveyor to the fine crusher for further crushing. The fine crushed stone is fed into the vibrating screen to separate two kinds of stones, which meet the feeding granularity of the sand machine. The other part of the returned material is fed into the fine crusher.
Sand equipment, sand washer
SandergravelOne part is made into sand, which is cleaned by the sand washer (optional) to make finished sand, and the other part is broken again by the sander
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Sand making machine, also known as energy-savingCompound fine crusher, this machine integratesHammer crusher、Counterattack crusher. The advantages of impact crusher gradually replace the original ones in the machine-made sand marketVertical impact crusherFeatures and advantages: The crusher adopts a super large arc crushing chamber and uses the principle of "stone beating stone" self impact crushing.Crushing chamberIt is a screening chamber with grate.The most important thing is that the "once and for all" special hammer for fine crushing has realized the revolutionary breakthrough of "hammer breaking is used as jaw breaking" and completely realized the low-cost operation of the fine crusher.The discharge of vertical impact crusher cannot be adjusted;The spindle speed of the equipment is high, and the maintenance cost is high. Usually, once there is a problem, you can only return to the factory for maintenance;Large powder content in discharge;The rate of finished products discharged is low, only accounting for 30% - 40% of the excess;Large power consumption, double motor drive, power consumption is more than twice that of the fine crusher.
VI Vertical impact crusher, commonly known as sand making machine.It is the crystallization of experts' wisdom and correct decision-making in developing mining machinery and equipment for many years. It is a high-energy and low consumption equipment with international advanced level. Its performance plays an irreplaceable role in various ore fine crushing equipment, and it is an effective, practical and reliable gravel machine.This product is widely used in various industries such as ore, cement, refractory, bauxite clinker, emery, glass raw materials, machine-made building sand, stone and various metallurgical slag.
Structure composition
Hx typeVertical impact crusher fromFeed hopper, distributor, whirling crushing chamber, impeller body, main shaft assembly, base, transmission device and motor.
1. Feed hopper
The structure of the feed hopper is an inverted prism (or cylinder). The feed inlet is equipped with a wear ring, and the incoming materials from the feeding equipment enter the crusher through the feed hopper.
2. Material distributor
The distributor is installed on the upper part of the whirling crushing chamber,DistributorThe function is to divert the incoming materials from the feed hopper, so that part of the materials enter the impeller directly through the central feeding pipe and are gradually accelerated to a higher speed for ejection, so that the other part of the materials enter the outer side of the impeller in the whirl crushing chamber from the outside of the central feeding pipe and the bypass, and are crushed by the high speed materials ejected from the impeller, without increasing power consumption and increasing production capacity,Improve crushing efficiency.
3. Vortex crushing chamber
Whirling crushing chamberIts structural shape is an annular space composed of upper and lower cylinders. The impeller rotates at high speed in the whirl crushing chamber, and the whirl crushing chamber can also contain materials, forming a material lining. The material crushing process takes place in the whirl crushing chamber, and the material lining separates the whirl crushing chamber wall of the crushing action, so that the crushing action is limited to between materials, playing the role of wear-resistant lining.The observation hole is used to observe the wear of the wear block at the launch port of the impeller channel and the wear of the lining plate at the top of the whirl crushing chamber. The observation hole must be sealed tightly when the crusher is working.The distributor is fixed on the upper cylindrical section of the whirling crushing chamber.The impeller rotates at high speed to produce air flow, and an internal self circulation system is formed in the whirling crushing chamber through the distributor and the impeller.
4. Impeller
The impeller structure is a hollow cylinder made of special materials, which is installed on the shaft head at the upper end of the main shaft assembly. The conical sleeve and key are used to connect the button pitch. The impeller rotates at high speed. The impeller is hxVertical impact crusher Key components of.The material enters the center of the impeller from the central feeding pipe of the distributor on the upper part of the impeller.The material is evenly distributed to each launching channel of the impeller by the distribution cone in the center of the impeller. At the outlet of the launching channel, a wear-resistant block made of special materials is installed and can be replaced.The impeller accelerates the material to 60-75m/s and ejects it, impacting the material lining in the whirl crushing chamber, and carrying out strong self crushing. The upper and lower flow passage plates are installed between the cone cap and the wear block to protect the impeller from wear.
5. Spindle assembly
The main shaft assembly is installed on the base to transmit the power from the motor via the V-belt and support the rotating movement of the impeller.The main shaft assembly consists of bearing seat, main shaft, bearing, etcform。
6. Base
The whirling crushing chamber, main shaft assembly, motor and transmission device are all installed on the bottom seat, and the base structure is shaped. The middle part is a four prism space, and the center of the four prism space is used to install the main shaft assembly, and the two sides form a discharge channel.The double motors are installed at the longitudinal ends of the base, and the base can be installed on the support or directly on the foundation.
7. Transmission device
Single motor or double motor driven belt transmission mechanism (above 75kw, double motor drive) is adopted. Two motors driven by two motors are installed on both sides of the main shaft assembly respectively. The two motor pulleys are connected with the main shaft pulley with a belt to balance the forces on both sides of the main shaft without generating additional torque.
8. Support
According to the different working places of the crusher - outdoor operation or indoor operation, support or no support can be considered.
9. Lubrication system
useMobilThe lubricating grease is specially used for centralized lubrication. The lubricating parts are the upper bearing and the lower bearing of the main shaft assembly. In order to facilitate oil injection, oil pipes are used to lead to the outside of the machine for regular oil filling of the oil pump.
Main purpose
This seriesSystem sand machineIt is suitable for crushing and shaping soft or medium hard and extremely hard materials, and is widely used in various ores, cements, refractories, bauxite clinker, emery, glass raw materials, machine-made building sand, stone materials and various metallurgical slags, especially for high hardExtra hard and abrasion resistant materials have higher output and efficiency than other types of crushers.
In the engineering field, machine-made sand, cushion materialasphalt concreteandcement concreteIdeal equipment for aggregate production.
In the mining field, it is widely used in the pre grinding process, which can produce a large amount of fine ore and reduce the grinding load of high cost.
Due to the excellent low abrasion characteristics of this series of sanders, this equipment is also used for production of high abrasion and secondary disintegration crushing.In addition, due to zero pollution of the product,Impact crusherIt can be well adapted to the production of glass quartz sand and other high-purity materials. With a production capacity of 10-500t/h, the impact crusher can almost meet any production requirements.
working principle
The material enters the sand machine from the feed hopper, and is divided into two parts by the distributor. One part enters the high-speed rotating impeller from the middle of the distributor, and is rapidly accelerated in the impeller, whose acceleration can reach hundreds of times of the gravity acceleration, and then is ejected from the three evenly distributed flow channels of the impeller at the speed of 60-70 meters/second,First, a part of the materials collected from around the distributor will be impacted and broken, and then they will impact the material lining in the vortex branch chamber together, bounce back by the material lining, and impact the top of the vortex chamber obliquely upwards, then change its movement direction, deflect downward, and the materials emitted from the impeller flow channel will form a continuous material curtain.Such a piece of material will be impacted, rubbed, ground and broken twice or even several times in the whirling crushing chamber.The crushed materials are discharged from the lower discharge port.In the whole crushing process, the materials will impact and crush each other by themselves, not directly contacting with metal components, but impact and friction with the material lining to crush, which reduces the angle pollution and extends the mechanical wear time.Whirling cavityThe internal ingenious air circulation eliminates dust pollution.
Equipment advantages
1. Simple and reasonable structure, self impact crushing, and ultra-low use cost;
2. The unique bearing installation and advanced spindle design make this machine have the characteristics of heavy load and high-speed rotation.
3. It has fine crushing and coarse grinding functions;
4. High reliability and tight safety protection device to ensure equipment and personal safety;
5. Stable operation, low working noise, high efficiency and energy saving, and high crushing efficiency;
6. It is less affected by the moisture content of materials, and the moisture content can reach about 8%;
7. The wearing parts have low loss, and all wearing parts are of high quality at home and abroadWear-resistant material, long service life.A small number of easily worn parts are made of hard wear-resistant materials, which are small in size, light in weight and easy to replace parts.
8. The airflow inside the vortex chamber is self circulating, and the dust pollution is small.
9. The self lining of materials in impeller and whirl crushing chamber greatly reduces the cost of wearing parts and maintenance workload.In the production process, the stone can form a protective bottom layer, and the machine body is durable without wear.
10. Various installation methods, movable installation.
11. The product is a cube with high stacking density and low iron pollution.It can be used as stone shaping machine.
working principle
When working, the motor drives the impeller to rotate slowly after decelerating through the V-belt, reducer and gear. The sand and gravel have a feed trough into the washing trough. Driven by the impeller, they tumble and grind each other to remove the impurities covering the surface of the sand and gravel, while destroying the moisture layer covering the sand to facilitate dehydration;At the same time, add water to form a strong water flow, timely take away impurities and foreign matters with small specific gravity, and discharge them from the overflow outlet washing tank to complete the cleaning function.The clean sand is taken away by the blade, and finally the sand is poured into the discharge chute from the rotating impeller to complete the cleaning of the sand.
Performance characteristics
1. The sand washer has simple structure and impellerDrive bearingThe device is isolated from water and water receiving materials, which greatly avoids the damage of bearings caused by water immersion, sand and pollutants.
2. This machine is used for sand washing in the sand and stone yardSpiral sand washerThe obvious advantages are as follows:
<1> There is little loss of medium and fine sand and stone powder, and the grading and fineness modulus of washed construction sand meet the national standards of Sand for Construction and Pebble and Gravel for Construction.
<2> The machine has almost no vulnerable parts except the screen.
<3> Long service life, long-term maintenance free.
The sand washing machine (sand washing machine) adopts advanced technology and is an efficient sand washing equipment developed in combination with the actual situation of the domestic sand and gravel industry. The sand washing machine has a cleaning height, reasonable structure, large output, less sand loss in the sand washing process, especially its transmission parts are isolated from water and sand, so the failure rate of the sand washing machine is much lower than that of common sand washing machines,It is the best choice for upgrading the domestic sand washing industry.During installation, adjustment and operation of sand washing machine, attention shall be paid to:
1. BecauseWheel bucket sand washerIt is recommended to install the machine on the concrete foundation with embedded weldments for welding during installation
The foundation depth and area are calculated separately according to the soil conditions. It is recommended that the foundation weight be approximately 3 times the machine weight. See
Read the foundation drawing.The foundation drawing of the sand washing equipment will be provided by the technical department of Fangda Company.
2. After the two wheel sand washer is unloaded and installed in place, check whether the big and small gears of the reducer are displaced, and whether the clearance between the water tank and the big wheel bucket is the same
After adjustment, fix and weld the machine on the foundation.
3. Next step:Drum sand washerAdd lubricating oil and adjust the oil level, generally 50% below the shaft center.
4. After the installation and adjustment of the two wheel sand washing machine are stable, the test run shall be carried out.
(1) The wheel bucket of the wheel bucket sand washer runs continuously for 2 hours:
(2) All fasteners shall be firm without looseness.
(3) The reducer and gear box of wheel bucket sand washer shall have no abnormal sound.
In addition to meeting the requirements of no-load commissioning, the load commissioning of high-efficiency bucket wheel sand washer shall also meet the following requirements:
(1) No matter whether the conveyor or forklift is used for direct feeding, the material shall not impact the water tank strongly, and the water tank shall not be loaded and stacked with bias load
Avoid damaging the wheel bucket and body.
(2) The maximum feed size shall not be too large and shall meet the design requirements
