Impact crusher

Impact crusher is suitable for crushing hard materials, such as cement plants limestone crusher, has a large capacity, the material advantages of small size. This series of products can deal with side length of 100-500 mm material with compressive strength up to 350 MPa, a crushing ratio, high crushing material was grain cube.

Working Principle
Stone from the upper part of the machine from falling directly into the high-speed rotation of the turntable; under the effect of centrifugal force in high-speed, with another part of the umbrella-type shunt in the turntable around flyrocks produce a high-speed collision with a high density pulverized stone in mutual combat will caused by a number of fight against each other, friction, grinding, direct discharge from the lower part of the formation of vortex motion between the turntable and the chassis. Form a closed loop several times to achieve the desired particle size is controlled by the screening device.
Performance characteristics
High chrome hammer, wear back liner; unique tooth back liner; shape particularly suitable for hard rock crushing, energy efficient; all the entire board structure so that the discharge was small particle size and cube-shaped, within the pattern; cubic shape, adjustable output size, simplified crushing process. Full hydraulic opening, ease of maintenance and replacement of wearing parts.

crusher

Zhengzhou unique Machinery Co., R & D and production of integrated cone crusher series mobile crusher station iron ore beneficiation equipment has indisputably become the world's most popular iron ore processing equipment. Widely used in metal mining, metallurgical industry, chemical industry, construction industry, construction waste disposal, surface coal mining, cement industry and gravel industry. Applicable to, the crushing general hardness f = 5-16 all kinds of mining and rock such as iron ore, non-ferrous metal ores, granite, limestone, quartzite, sandstone, pebbles and other. Cone crusher series mobile crushing plant crusher play the greatest performance in order to apply to all kinds of crushing process.

Unique mobile cone crusher machine processing screening for iron ore, but also provide the best quality sand and gravel aggregate for highway, railway, high-rise buildings, municipal engineering, construction of hydroelectric dams, harbors and docks, concrete mixing stations and other indisputably become the core mechanism sands industry and the field of stone shaping equipment, but has increasingly become the mainstream in the field of metal ore crushing, production of quartz sand, steel slag processing equipment. Another cone crusher series mobile crushing plant is construction waste disposal, surface mine mining device of choice

Our Impact Crusher in Oman

This is the installation of our impact crusher in Oman. The model is PF-1214, Max Feed Edge is 350mm, and Capacity is 100-180 and Motor Power 132kw.
Impact crusher is mainly used in secondary crushing. It can crush various rocks, high efficiency, easy maintenance, and cubic shape of the products. Impact crusher is widely used in mining, highway, and construction.
The electric motor drive the rotor to high speed, when the material was fed to the crushing chamber from feed inlet, the material will be struck by the plate hammer on the rotor, then will be thrown to the impact plates, after struck repeatedly, the final products will be discharged from the crusher.

What, How and Where----Crusher Plant

What is crusher plant?
Crusher plant herein means the aggregate of vibrating feeder, belt conveyor,  jaw crusher, impact crusher and vibrating screen, which is used to crush big size stones into kinds of aggregate. It is mainly used in mining, highway, metallurgical industry, construction, road and railway building, conversancy, chemistry, etc.
How does crusher plant works?
Through the hopper, large stone were taken by the vibrating feeder into jaw crusher for the primary crushing. And then rough stone were crushed into different sizes by impact crusher for secondary crushing. The stones that meet the requirements were taken via conveyor belt as finished products and others need re-crushed. This closed-circuit system with low wastage and long product life period can bring customer considerable profit.
Where does crusher plant use?
Crusher plant line is automatic and efficient. It features high reduction ratio and big processing capacity. The finished product is in cubic shape, with high compression intensity but low needle shape particles and no internal gap.
This plant designed by Zhengzhou Unique has been applied to stone crushing process like limestone, granite, basalt, cobble etc. The quality of the finished products reaches GB standard. It supplies fine aggregate for highway, railway, conservancy and concrete reinforcement.

The Mobile Crusher can Bring You Many Benefits

Mobile Crushing Plant has many advantages over stationary crushing plant such as convenient, flexible and strong in mobility, so it can save a large construction capital and relocation. Raw Materials can be broken at the locale without being transported again and also can be moved with the promotional exploitation of the raw material, which saves a large number of transportation costs. On the basis of the professional technology, we optimize and introduce newly two large and three small series crushing and screening equipment, which consist of crawler type mobile crushing plant with track under it and portable crushing plant with chassis. Both of the above mobile crushing plants are divided into three series: coarse, middle and fine crushing and screening portable plant. Therefore, it can fully adapt to the various portable crushing and screening, which creates more new business opportunities for customers while reducing the cost of the production.

Our company is a professional and reliable supplier of mobile crusher. More information about our machine, please feel free to contact with us by phone or e-mail at any time.

Concrete pumping concrete and pipeline design of key technologies

Concrete pumping concrete and pipeline design of key technologies
    Summary: I tenders estuary Temple reservoir reinforcement project engineering background, concrete pump conveying concrete plugging problem through the project 2 units HZS120 concrete mixing plant onproduced concrete mix, pipeline design, The plugging reasons analysis, development of a concrete pumping concrete and pipeline design guidance programs, to provide a reference for the use of similar concrete pumping equipment.Keywords: concrete pump concrete mixing plant concrete mixer pipeline design
    The estuary Temple reservoir Shaanxi Province Wuding River, a tributary of the road and the last a focus on medium-sized reservoirs, total reservoir capacity is about 6 1 4 00 000 m 3 0 estuary Temple reservoir reinforcement project I tenders including New Spillway and Sand hole, water tower Hekou putWater tower traffic bridges. New Spillway and Sand hole design for long 287.8 7 km cross section round R = 1.5 m circular pressure tunnel, then energy consumption by the import segment, the import lock chamber segment, hole posture export Gate Chamber and export from front segments. Which tunnel grouted rockbolting, tunnel reinforced concrete lining of the tunnel backfill grouting, tunnel consolidation grouting concrete pump conveying concrete to complete. Through research, analysis, practice, summarizes work out the following concrete pumping concrete pipeline design guidance program.The basic requirements of a concrete pumping concrete
    Compulsory concrete mixing plant production requires the right concrete batching plant, which is smooth and economic determinants of the concrete pumping operations. Coagulation ± fit than including: aggregate gradation, cement content, concrete consistency of the three elements, these three elements intersect work.For example: When the fine aggregate or cement content concrete pumping, it is desirable with the ideal PLD4800 batching machine aggregate measured separately aggregate ratio, increase the sand content, and more water method to improve concrete pump sex; improper aggregate gradation, the sand content is too low, or too many flaky gravel increase of some 2.5 ~ 0.5cm pebbles, change the coarse aggregate gradation, and can also be used more cement or water, some improve its concrete pumpability.1.1 the concrete consistency (slump)
    Consistency of concrete by a number of factors: the water-cement ratio of concrete, aggregate gradation and nature, time, temperature, cement properties and admixtures, but the main influencing factors are the water-cement ratio of the concrete. The consistency of the concrete pumping concrete commonly used to measure concrete slump values ​​to determine. Slump directly reflect the size of the water-cement ratio concrete and concrete pumping performance.1.1.1 slump concrete pumping pressure
    The concrete slump reflect the size of flow performance is good or bad. Therefore, the concrete transport resistance decreases with increasing slump. In other words, the slump smaller concrete pumping greater the pressure, especially slump value in the 15cm or less, more this change is obvious.1,1.2 concrete pumping concrete slump range of concrete pumping volumetric efficiency
    Concrete pumping concrete slump range of 6 ~ 23cm, but the practical application of the general control within the range of 8 ~ 18cm, this range can be concrete pumpability best absorption effect best. For long-distance, large high concrete pumpingGeneral control 15cm left, because:
    (1) the slump is too small, concrete pumping pressure will increase and cause increased wear of concrete pumps and cause plugging;
    (2) slump too large, on the one hand the role of the large pressure concrete easy segregation, resulting in plugging; other hand, the impact absorbing performance of the concrete pump, so that the concrete produce segregation in the absorption process, it is difficult to The concrete pumping slurry leakage and because the the dispensing valve Mifengbuyan easily.
    (3) the concrete slump assurance measures:
    a strict control of the concrete mix;
    b shorten the transit time of the concrete before the concrete pumping;
    c ensure the homogeneity of the concrete.
    (4) the use of cement in line with national standards, and generally may not be concrete pumping quick-setting concrete.The 1.2 Aggregate ingredients batching machine of the machine using PLD4800 independent measurement1 .2.1 fine aggregate
    (1) the variety and quality of fine aggregate. Fine aggregate can be divided according to the source of river sand, sea sand, mountain sand, artificial brokenSand. River sand concrete pump is the best artificial sand surface rough, sand bad shape, concrete pump less, but its good water retention.(2) a fine aggregate size requirements.
    Fine aggregate can be divided into sand, fine sand, coarse sand in three categories, in the sand concrete pumps best. The use of fine sand. The need to increase the concrete, cement and water consumption to accelerate concrete pump machine wear, grit prone segregation cause the pipes get clogged(3) the amount of the fine aggregate.Transport in concrete pump concrete, the amount of the fine orthopedic porosity great relationship with the coarse aggregate, cement mortar must be filled with coarse orthopedic gap is not easy to segregation. If the sand low rate of voids by the cement to supplement this must increase the amount of cement, the same concrete Yi Qinshui and segregation, sand ratio is too large, the fluidity of the cement mortar is greatly reduced, a significant increase in the pumping resistance of concrete . Therefore, under certain conditions, have the best sand ratio. The sand rate case as long as the amount of cement is a corresponding increase in concrete concrete pump is no significant effect. If the coarse aggregate gradation and the maximum aggregate size of the larger the best sand ratio is lower. Under normal circumstances,Concrete sand ratio can be selected (see Table 1) range.Table 1 Recommended the sand rate table (96Concrete
 The aggregate size of the sediment concentration concrete aerated agent concrete mixing gas agentPebble gravel pebble gravel
        

混凝土 骨料粒径         含沙量	掺加气剂混凝土		无加气剂混凝土
	卵石	碎石	卵石	碎石
15	48	53	52	54
20	45	50	49	54
30	42	45	45	49
40	40	42	42	45

Attention! Sand the rate should be a minimum of not less than 40%, or concrete pumping is very difficult.

Foreign purchase of concrete mixers and concrete mixing station Note

Foreign purchase of concrete mixers and concrete mixing plant Note

    With the development of society, concrete mixer more the type of equipment more and more equipment manufacturers also uneven, there is a lot of trading companies no factories, purchase of small equipment manufacturers, after-sales, product quality is difficult to guarantee, as much as possible to find out .
Here are the points should pay attention to when buying concrete equipment:
    1, the size of the company: to see if the company has no CE, ISO certification, there are not well-known, the number of sales to foreign.
    2, production capacity: there is no new product, now a lot of companies are still selling the devices in the 1980s, the machining workshop some manufacturers simply not assemble the spare parts are purchased from the outside, to be less than a guarantee of product quality.
  Technical strength: more than technical team of at least 20 people, the industry leader in the development of new products and applications, CAD drawings audit.
3, after-sales capacity: depends on the company's sales team, the installed capacity in overseas, the problem can not be solved.
4, spare parts supply: large manufacturers as long as the customer has any problems, the first time accessories sent to the completely free quality warranty period.
  5, Price: large manufacturers prices are generally higher, because the device manufacturing process, new product applications, the selection of steel, require relatively high, substandard equipment determined not factory. Do not just look at price, concrete mixers and concrete mixing plant on the quality.