Analysis of common faults of sand making machine

Based on the introduction of foreign technology, the new type of sand making machine is further improved by absorbing the advantages of the vertical impact crusher. At the same time, the advantages of hammer breaking and counterattack breaking are comprehensively developed. The equipment can be widely used in construction, mining, metallurgy, highway and other industries. How to prevent the sand making machine from appearing in the sand making production line What about the trouble?

Abnormal vibration of sand making machine occurred in the production process

1. If the material entering the sand making machine is too large, you can check the particle size of the feed;

2. The abrasion of impeller of sand making machine is uneven. Check the wear of impeller and hammer head. If there is wear, stop the machine in time for repair;

3. The impeller is not balanced and should be replaced timely if necessary;

4. If the foundation of sand making machine is not properly treated, check the anchor bolts and tighten them.

Bearing heating of sand making machine

1. If the bearing of sand making machine is short of oil, check and add oil in time. If the oil is too much, the bearing will be heated. The oil level must be checked when adding oil;

2. Sand machine bearing damage, inspection and timely replacement of bearings;

3. If the upper cover of bearing body of sand making machine is too tight, the bolts should be adjusted properly and the tightness should be moderate.

Too large discharge particle of sand making machine

1. Check the abrasion of sand making machine hammer head, and repair and replace the worn hammer head in time;

2. Check the abrasion of the side impact plate of the sand making machine and replace it if necessary;

3. Check the feeding particle size of sand making machine. If the feed particle size is too large, it will also affect the discharge particle size.

Belt overturning of sand making machine

1. The belt of sand making machine is worn and needs to be replaced;

2. Belt conveyor assembly problem, need to adjust the pulley in the same plane;

3. Check the quality of the V-belt itself.

These are for the sand machine in the sand production line failure, but for the sand making machine manufacturers, will largely ensure the quality of products, in the equipment technology aspects of continuous innovation, to ensure the interests of customers.

Manufactured Sand Making Machine in Philippines

In order to protect the ecological balance, the state expressly prohibited unauthorized excavation of natural sand, gravel supply than demand, which requires a lot of manufactured sand and M-sand machine has become more and more popular in the market. Artificial sand is determined by its own characteristics, application of its various aspects are better than ordinary natural sand.

Sand fineness refers to the different particle size of sand mixed with uniform thickness. There are usually coarse sand, sand, sand division.Grading of sand is sand size particles of proportion. Sand the wilderness idle rate depends on the sand particle size matching degree at all levels. Well graded sand, not only can save cement, but also improve the degree of compaction and strength of concrete and mortar. There are usually coarse sand, medium sand, fine sand.

In the aggregate production, mainly rely on the sand and stone equipment production equipment, raw materials are mainly granite, limestone,pebbles and certain hardness of stone, the feeder, jaw crusher,impact crusher, mobile crusher, sand making machine, vibrating screen and a series of equipment for crushing and screening into a hierarchy of needs.

Mobile Rock Crusher: https://m.zenithcrusher.com/products/mobile-crusher/
Complete Crushing Plant: https://m.zenithcrusher.com/complete-crushing-plant/

Artificial Sand Making Process

Manufactured sand is the main raw materials for infrastructure, concrete and mortar. At present, there are two types of natural sand and manufactured sand in China. Natural sand with particle size less than 5mm is crushed and screened into stone particles with particle size less than 4.75mm. According to the size of sand, they are coarse sand, medium sand and fine sand respectively, and coarse sand with particle size above 0.55mm is coarse sand, Medium sand is less than 0.5mm and more than 0.35mm, fine sand is between 0.35-0.25mm, and ultra-fine sand is less than 0.25mm.

Artificial sand making process is a kind of industry with small investment and quick effect. In addition, with the acceleration of mechanization in recent years, the sand and stone processing machine has greatly reduced human and material resources, and has low energy consumption, which can easily realize mass production. Bridges and real estate are in a large number of construction, and gravel aggregate is the raw material The demand for aggregate and building aggregate continues to increase, and the production of aggregate and building aggregate equipment is a complete set of artificial sand production line equipment.

The special equipment for aggregate production line is the special equipment for producing sand and stone for construction. The stone equipment includes jaw crusher, stone crusher, impact crusher, vibrating feeder, vibrating screen, sand washing machine, belt conveyor, etc. The equipment has the characteristics of reliable performance, reasonable design, convenient operation and high efficiency.

The artificial sand making process has a high degree of automation. In addition to the start-up, shutdown and routine maintenance of the equipment, the whole production line has simple process and almost no manual operation. It has the advantages of high production efficiency, low operating cost, large output and high profit. The product stone has uniform particle size and good grain shape, which meets the requirements of national high-speed material use.

It can be used for aggregate and artificial sand making of hard limestone, granite, basalt, river pebble, smelting slag and other materials. It is suitable for the application of hydropower, building materials, expressway, urban construction and other industries. It is especially suitable for the production and processing of highway surface material, highway pavement gravel, high-speed railway passenger dedicated line sand and gravel, hydropower station sand and stone, port wharf and airport runway gravel.

The stone production lines are carefully designed for customers according to the on-site investigation or the actual requirements of customers, which fully reflects the rationality, effectiveness and applicability of the design. The remarkable characteristics of the stone production line are large processing capacity, low wear and low operation cost. Strong technical strength and perfect service system is the guarantee for customers to purchase and use at ease. According to different process requirements, various types of equipment are combined to meet different process requirements of customers.

M Sand vs Natural Sand: https://www.sbmchina.com/media/articals/298.html

Tips to Stop Sand Making Machine Vibration

The daily maintenance of sand making machine is essential. The sand making machine must be allowed to stop at regular intervals and the internal wear of the machine must be observed regularly. Replace or repair. It should also be noted that the observation window should not be opened during the normal operation of the sand making machine, so as to avoid dangerous accidents.

The tension of V-belt of reversible sand making machine should be adjusted properly to ensure uniform loading of V-belt. When driven by two motors, the V-belts on both sides should be grouped and matched to make the length of each group as consistent as possible. Adjustments should be made so that the current difference between the two motors does not exceed 15A. In the working process, due to the high-speed equipment of sand making machine, special attention should be paid to the safety. Workers should stay away from equipment. If maintenance is required on the machine, the power must be turned off before operation.

Add proper amount of grease every 400 hours. After 2000 hours of operation, open the spindle assembly to clean the bearing. Normally, it can work for 7200 hours and replace the bearing with a new one. The upper bearing of the spindle assembly is a floating end and the lower bearing is a fixed end. After assembly, turn the pulley by hand to make it rotate flexibly. During the operation of the sand making machine, due to the high speed of the equipment, special attention should be paid to the safety production. Relevant personnel should stay away from the equipment. If maintenance is needed on the machine, it should be done after shutdown. It is recommended that you ask professional maintenance personnel to solve the problem. It is strictly forbidden to dismantle the core components without the permission of the manufacturer.

Regularly close and open the observation door to observe the internal wear of the sand making machine. The wear degree of the central feed pipe, conical cover, upper and lower runner bushing of impeller, circumferential protection plate and wear block should be replaced or repaired in time after wear. At the same time, replace the wear block to ensure that the weight of the wear block is the same. It is strictly forbidden to open the observation door to observe the internal working state during the operation of sand making machine, so as to avoid danger. The impeller body is found to be worn and replaced in time to find the manufacturer for repair. In particular, it is strictly forbidden to manufacture impellers without the permission of the manufacturer.

The main body of the sand making machine is made of high precision, high strength casting and special welding and materials. It has good rigidity, vibration resistance and long service life. The investment can be large or small, and the production method is flexible. Sand making machine can start from a small amount of investment in mold, or can be directly large-scale production. It can be produced in a fixed location or on the move. The sand making machine does not need very high production conditions. Simple industrial shed can be used as workshop, products are stored in open air, no warehouse is needed, and the quality of workers is not high.

The inlet size of sand making machine should be adjusted according to the required product size. When adjusting, loosen the t-row bolts and the tension spring. Use the jack up bolt to push in the adjusting seat, insert or remove the corresponding thickness of gasket, and then retract the jack up bolt. The adjusting seat is firmly fixed on the ear seat of the reversible sander under the weight of the movable jaw. Press the shim pack together.

Adjust the preload of the spring to ensure that the thrust plate and the thrust plate pad are in close contact when the sand making machine is working. However, as long as the preload is not issued, there should not be too much knocking at the door and then locking the adjusting seat. A layer of metal plate shall be laid on the basic mine drainage pipe, and the metal plate shall have sufficient inclination angle (determined by the fluidity of the material and shall not be less than 50 °) so as not to hinder the smooth discharge of the crushed product.

Since the sand making machine will vibrate violently when it works, it should be installed on the concrete foundation. In order to reduce vibration, noise and impact on the foundation of nearby buildings, please use it between hardwood pads, rubber bands or other damping materials.

Vertical Roller Mill Investment Highlights

Vertical roller mill is a kind of comprehensive large-scale grinding equipment which integrates crushing, grinding, powder selection, drying and material transportation. With the rapid improvement of grinding machinery research and development technology, the product technical advantages of LM vertical mill are increasingly prominent, and gradually accepted by domestic cement, electric power, steel, metallurgy, building materials, chemical industry and other industries, and become the preferred equipment for grinding investment in the industry.

Investment Highlights

1. less comprehensive investment

It integrates crushing, drying, grinding, powder selection and transportation. The system is simple and compact. The floor area is about 50% of the ball milling system, and can be arranged in the open air, which greatly reduces the investment cost.

2. low operation cost

Less wear and tear
There is no direct contact between the grinding roller and the grinding plate, and the grinding roller and lining plate are made of high-quality materials, so the wear is less, the service life is long and the operation cost is low.

High efficiency
LM vertical mill uses grinding roller to grind materials on the grinding plate, which has low energy consumption. Compared with ball milling system, energy consumption is reduced by 30% - 40%, and the electricity cost is saved more than a little.

Strong drying power
The hot air directly contacts the materials in the mill, which has strong drying capacity. It can save a dryer and save energy. By adjusting the temperature of hot air, the grinding requirements of materials with different humidity can be met.

Automatic control system
It is equipped with automatic control system, which can realize the free switching between remote control and local control, and is easy to operate and save labor.

3. high quality of finished products

Stable quality of finished products
It is easy to detect and control the particle size and chemical composition of the product and stabilize the product quality.

Fineness accuracy compliance
The roller and disc of LM vertical mill are not in direct contact, the iron content in the product is very small, and the mechanical wear iron is easy to remove, which effectively ensures the whiteness and purity of high standard materials.

LM vertical roller mill adopts dynamic and static combined high-efficiency powder concentrator, with adjustable rotor speed, high separation efficiency, wide range of materials, and can meet the fineness requirements under different conditions, and greatly ensure the powder quality of finished products.

4. high environmental standards
The equipment runs stably and vibrates little, so the noise is low. The system is sealed as a whole and works under negative pressure, with no dust spillover and clean environment. The discharge standard is far higher than the national standard.

LUM Ultrafine Vertical Grinding Mill: https://www.zenithcrusher.com/en/products/lum-vertical-mill.html