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Quartz Sand Manufacturing Process

Quartz Sand Manufacturing Process

How To Increase The Capacity Of Quartz Sand Manufacturing Process Plants

With the addition of cement companies, the face of the sand and gravel aggregate industry is gradually developing in terms of scale, environmental protection, ecology and sustainability. Despite this, due to the diversity of raw materials and markets, the level of design units is uneven. Most Quartz Sand Manufacturing Process Plants cannot fully meet the original intentions and purposes of the investors after they are put into production, or various problems have arisen during the operation. This article mainly lists some common problems and solutions, I hope to help you.

Improper Equipment Selection

Whether the equipment selection is reasonable is the primary factor determining the success of a Quartz Sand Manufacturing Process Plant. The equipment selection of the Quartz Sand Manufacturing Process Plant mainly depends on the physical properties of the raw materials (such as the hardness of the raw materials, the abrasiveness index, the soil content, etc.). Under normal circumstances, any type of Quartz Sand Manufacturing Process Plant designed and selected by a professional and qualified professional design unit will not have the problem of equipment selection.

However, since many Quartz Sand Manufacturing Process Plant investors did not find a formal design institute design, they directly constructed the equipment selection of other enterprises, and after the operation, there was a serious problem of unreasonable equipment selection. For example, granite, diabase, basalt and other raw materials with high hardness and abrasiveness index, Quartz Sand Manufacturing Process Plant selected hammer crusher or impact crusher, although the product produced is excellent in grain size, but its hammer and The loss of wear parts such as counterattacks is severe, and the replacement is extremely frequent, resulting in a significant increase in production costs and the inability to compete with the surrounding markets.

This problem is generally difficult to solve by adjusting the process, and the manufacturer has to replace the crusher equipment to ensure that the Quartz Sand Manufacturing Process Plant operates stably and economically for a long time. Therefore, when selecting a manufacturer, you must choose a powerful equipment manufacturer or a formal design institute to design a Quartz Sand Manufacturing Process Plant.

Improper Design Of Silo Or Library

The silo or material storage of the Quartz Sand Manufacturing Process Plant mainly includes a coarse broken feed bin, a medium-fine broken and sand-making buffer bin, a product storage, and a stone powder (0~0.075mm) storage.

Rough Feed Bin

The common problem of coarse broken feeding bin is that the side discharge opening of the bin is designed as a rectangular “door” structure. There is a dead angle in the bin and the discharging port. The material feeding is not smooth enough, and the bulk material is easy to accumulate here, which affects the normal feeding. . The simple measure that can be taken is to place an excavator beside the feeding port to clean up the accumulated material at any time; in the off-season of the market, the side discharge opening of the feeding bin is transformed into a trapezoidal “inverted eight” structure to eliminate Accumulated dead ends.

Medium And Fine Broken Sand Making Buffer

The common problem of medium-to-fine breakage and sand-making buffer warehouse is that the bottom of the warehouse is designed as a flat-bottomed steel silo structure. Because the overall material pressure at the bottom of the silo is large, during the operation of the Quartz Sand Manufacturing Process Plant, the bottom of the steel silo will be severely deformed and sunk. Phenomenon, which in turn creates a safety hazard. The improvement measures that can be taken in this problem are to strengthen the bottom structure; the design unit should avoid the use of the flat bottom steel silo structure when designing. When it is unavoidable to use the flat bottom silo structure, try to select the bottom of the warehouse as a concrete structure.

Product Repository

The product storage warehouse is generally in the form of concrete storage. The reserves are large and safe and stable. However, some enterprises choose steel silos to store sand and gravel aggregates. It is hoped that these enterprises will regularly check the wear of the steel storage and wear-resisting treatment.

A common problem with stone powder storage is that the stone powder produced during the rainy weather is wet, and the paste library makes it difficult to discharge the stone powder. The improvement measures that can be taken for this problem are: under the library, install several air cannons, loosen the stone powder in the library with compressed air; the design unit should not control the stone powder library as much as possible in the design, and design the cone in the cone. Flow board, air box or air cannon.

Material Transfer Gap Problem

The large drop portion of the material transport and transport is usually at least two places, the coarse break outlet and the vibrating screen feed port.

Rough breakout

The rough breaking equipment has a certain concrete foundation thickness, and the discharge port has a large difference between the downstream conveying belt conveyors, and the material block degree after the coarse breaking is mostly <300 mm. These stones are directly smashed on the belt conveyor, and the buffer roller will appear. The phenomenon that the conveyor belt is torn off and the roller frame is torn off. The improvement that can be taken in this problem is to replace the buffer roller of the downstream belt conveyor with a buffer bed and change the structure of the discharge chute to reduce the impact on the downstream equipment. In addition, if the drop is particularly large and the arrangement space allows, it is also conceivable to reduce the impact on the downstream equipment by increasing the form of the buffer feed device (such as a vibrating feeder).

Vibrating Screen Inlet

When designing the Quartz Sand Manufacturing Process Plant, in order to ensure that the maintenance space is left above the vibrating screen or the “one-to-two” material is distributed between the conveying equipment and the vibrating screen, there will be a large drop in the material entering the vibrating screen, and the material will hit the sieve plate during the operation. Large causes the screen to wear quickly. The improvement measures that can be taken in this problem are: partially adding the waste belt conveyor tape to the impact position of the vibrating screen, and adjusting the slip form to reduce the impact and wear on the sieve plate.

Material Slipper Wear Problem

Due to the multi-angle characteristics of the aggregates or products of the aggregates, the high abrasion characteristics of some raw materials and the large drop of material transport, most of the rollers in the transportation process have severe impact and wear and short service life. The improvement that can be taken with this problem is to lay cast manganese steel or other material liner inside the impacted slipper. The slippery structure is changed for the slipper that is less impacted, the abrasive material is formed in the slipper, and the steel sheet is thickened under conditions. However, when transporting soil materials, it is recommended to adopt thickening treatment for the slipper, and it is not necessary to use the material abrasive stepper design because the material of the abrasive slippery structure is likely to cause the soil material to block the slippery.

Dust Is Too Big, Not Environmentally Friendly

After the formal design of the Quartz Sand Manufacturing Process Plant, the environmental protection can basically meet the requirements of the national standard, but the individual Quartz Sand Manufacturing Process Plants are denser near the two-break counter-shock crusher and the bulk of the finished garage. The improvement measures that can be taken in this problem are: firstly, according to the number of dust collection points and the position, the selected dust collector specifications are used. For the dust near the impact crusher, if the designed dust collector is sufficient, then the crusher Setting the dust collection point before and after the discharge point can effectively reduce the dust here. For the dust near the bulk of the finished product warehouse, if the dust collector of the selected design is sufficient, and the dust collection by the bulk machine is collected by the top dust collector, it can be passed between the bulk duct of the bulk machine and the top dust collector. Add a centrifugal fan to improve the dust collection efficiency of the top dust collector, and increase the water spray dust removal near the material feeding port of the bulk machine to effectively reduce the dust. If it is verified that the selected dust collector is not enough air volume, it needs to be solved by increasing the dust collection system (when the air volume needs to be large) or by increasing the original dust collector fan motor and adjusting the fan valve.

In addition, when the product is stored in a stack, there is always an unorganized dust efflux during the material stacking process. The effective measures currently adopted for this problem are to increase the water spray dust removal facilities based on reasonable calculations such as stacking capacity and stacking height.

Collection And Transportation Of Stone Powder (<0.075mm)

The dust-collecting powder of the Quartz Sand Manufacturing Process Plant is directly collected on the downstream conveyor belt machine, so that there are problems such as repeated dusting caused by secondary dusting and large content of stone powder in the product. The stone powder in the Quartz Sand Manufacturing Process Plant is transported by a belt conveyor. The dust overflow caused by the tight sealing of the belt guide groove and the rain cover or the rainy rain and rain caused the stone powder to become wet. The stone powder in the Quartz Sand Manufacturing Process Plant is transported by the air conveying chute. When the rainy day stone powder is wet, the chute gas layer is sealed and the material cannot be transported. The improvement measures that can be taken for the above problems are that the dust collected by the dust collector of all or at least the latter process of the Quartz Sand Manufacturing Process Plant is separately transported to the stone powder storage by the zipper and the hoisting equipment.

Other Problems

The vibrating screening feeder of the Quartz Sand Manufacturing Process Plant has a large load at the start of the feeder, which is easy to cause the vibration of the exciter gear to be worn or damaged seriously. The improvement measures that can be taken for this problem are to properly adjust the installation angle of the equipment and increase the frequency converter to start slowly.

Due to the inaccurate basic data collected by the Quartz Sand Manufacturing Process Plant, the selection of individual conveyor belts is too small, which affects the capacity of the Quartz Sand Manufacturing Process Plant. An improvement to this problem is to increase the belt speed of the belt by replacing the drive system, thereby increasing the conveying capacity of the belt conveyor.

The leakage connection between the inlet and outlet of the vibration equipment is leaking, and the soft connection of the canvas is not durable and frequently replaced. The improvement measure of this problem is that the soft connection is made on site by using the waste belt conveyor tape, and the service life is long and the sealing effect is good.

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