Why Choose LZZG Sand Washing Machine

LZZG sand washing machine is a multi-functional sand washer combining a wheel sand washing machine and a fine sand recovery system.

We used a reliable structure to connect 2 different units, occupying a smaller area than the 2 Independent devices alone, and the structure design is stable and durable. In terms of function, ordinary sand washing machines on the market generally only have the function of sand washing, but LZZG Sand Washing Machines integrate three functions of sand washing, dewatering and recycling, make it available for supreme sand quality and maximise recovery of fine sand.

How Sand Washing Machine Work

The gravel mixture enters the cleaning box from the feeding , and the impeller starts to rotate by the motor and the reducer, so that the materials are fully frictioned to remove impurities and destroy the water vapor layer on the surface of the material for subsequent dehydration and recovery.The washed material enters the lower dewatering device and removes a large amount of water through the high-speed vibration of the dewatering screen.

The waste water (containing a lot of fine sand, mud and other impurities) overflowing from the cleaning tank is pumped out by a vacuum high pressure pump, and fine sand is collected by the centrifugal force of the cyclone .Qualified materials will be returned to the dewatering equipment for dehydration treatment, and excess waste water will be discharged into the return water tank.

Design Highlights

1. Just use a wheel sand washer or a screw sand washer, the discharged wastewater always contain a large amount of fine sand, which will cause the product loss.

2. LZZG sand washing machines contain 2 important components: wheel washing unit and fines recovery unit in a single machine, which make the sand specs be more precise.

3. Fine Recovery Unit make the sand and water separated on the dewatering panels, and resulting in a drier product with moisture content as low as 15%.

4. Hydrocyclones equipped on dewatering screen will recovery 0.075mm fines mixed in the slurry and reintroduced back onto the dewatering panels.

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New Website lzzgafrica.com Has Been Revised

Luoyang Longzhong Heavy Machinery Co., Ltd. is an international enterprise specialized in R & D, production and marketing of mining machinery and industrial milling equipment. Our company develope the production of mining machinery and industrial milling equipment, crusher products are widely used in mining, metallurgy, construction, chemical, power, steel and other industries.

Company based on market demands, always adhere to the development strategy of large research and development, precise production, and excellent service, by virtue of the excellent quality products and efficient service to meet customer needs, so that the Luoyang Longzhong Heavy Machinery thinks globally! We will fully meet your diverse needs, and cast your new brilliant!

Why choose us?

The company has senior design engineers of the mining machinery and industrial milling equipment, domestic and foreign famous universities, degrees, and other technical elites, to provide an inexhaustible driving force for sustainable development of enterprises, and they work together to ensure the long product development, design, production and after-sales service in every aspect of efficient and perfect.

What Is Sludge Thickeneing and Dewatering?

Sludge thickening and dewatering is two important stages in treating sludge. Thickening is the first step of sludge treatment in which the solids concentration is increased and the total sludge volume is correspondingly decreased, Thickening commonly produces sludge solids concentrations between 15% and 20%, LZZG Deep Cone Thickener results in maximum water recovery, maximum underflow density, can help to save the downstream costs.

Dewatring process reduces the most moisture content of the sludge. LZZG use filter press(mechanical dewatering) for dewatering. Separate liquids and solids utilizes the principle of pressure drive, after the mechanical dewatering process, the sludge will results in a 95% reduction in volume, which will be convenient for storage and transportation. Most overflows will be recycled or reusing.

Sludge treatment system is imporatant in treating solid waste. It minimizes the water waste, enabling the re-treatment of sludges so that they can be easily stock or landfill.

LZZG sludge treatment system is consist of Deep Cone Thickener and Filter Press, The systems usually used after sand washing machine, dewatering screen, tailing dewatering screen or sand recycling machines, widely applied for wastewater treatment of sandstone aggregate plant, precious metal dressing plant, ceramics, glass and other industries.

What is lzzg filter press?

As a solid-liquid separation equipment, the filter press has a long history in the application of materials dewatering and liquids solids separation. Specifically, the slurry is pumped into the filter press chambers. Under the action of the pressure pump, the filter plates extrude each other, so the low moisture content cake is formed and released.

LZZG customized filter presses feature good separation effect and wide adaptability, especially for the sticky and fine materials. Whether you require a high capacity of Filter Press or a smaller footprint design, we will design best option standard or specific filter press solutions for each user based on the volume and type of slurry that needs to be dewatered.

As a professional filter press manufacturer, LZZG's extensive range of industrial filter presses, including plate filter press, belt filter press as well as a range of optional equipment accessories: automatic filter cloth cleaning system, auto plate shifting device, auto plate shaking device, automatic hydraulic device, and PLC auto-control, etc.

How many types of aggregates are there?

How to classify aggregates | Types of Aggregates.
Aggregates are variously classified on the foundation of their grain size, their origin, and their volume-weight as follows:

1.Aggregate Types on the foundation of Grain Size.
This is the most common classification, the place in two sorts of aggregates are distinguished: (Fine and Coarse).

(1) Fine Aggregates.
In the Fine Aggregates, the grain-size lies between 4.75 mm and 0.15 mm.

(2) Coarse Aggregates:
Coarse aggregates are those that are retained on the sieve of mesh dimension 4.75 mm.

2.Types on the Basis of origin.
There are three kinds on the Basis of Origin.

(1) Natural:
These include all these types of first-rate and coarse aggregates, that are reachable in nearly prepared to use form, from herbal resources.

(2) Bye-product:
These encompass materials obtained as wastes from some industrial and metallurgical engineering operations, which possess appropriate residences for being used as aggregate.

(3) Processed:
These structure a specific class in Aggregate. They are especially manufactured for use in making Quality Concretes.

3.Types on the Basis of Density.
Three kinds of aggregates are individual on the groundwork of their weight per unit volume.

(1) Standard or Normal:
These kinds of aggregates supply strength and weighting to the Concrete of around two 2300 to 2500 kg/m3.

(2) High-Density Aggregates:
These are that kind of Aggregates, which is used in fashionable proportions yield in heavy weight concretes.

(3) Light weight Aggregate:
They consist of herbal and artificial materials of very low density so that the resulting concrete is also pretty Light in weight, usually with in a vary of 350 to 750 kg/m3.

More details: https://www.lzzgchina.com

Wastewater Treatment Belt Press

LZZG Belt filter presses are designed for dewatering applications where sludge is particulate, include various types of industrial wastewater sludge, such as sand-making mud, washed sand mud, mine tailings, piling mud, river silt, etc.



They are pumped to the deep cone thickener, the flocculant is added to the thickener tank, and the concentration of the sludge in the thickener is increased by 60%-70% under flocculation and gravity precipitation.



Then sent to the belt filter presses, under the action of a gravity zone, a wedge zone, and a pressure zone , the sludge cake with water content of less than 20% is formed and the overflow clean water will be re-processing.





More details: https://www.lzzgchina.com/

The best sand washing machine from China

What is sand washing machine?

Sand washing equipment is utilized to expel the residue and stone powder in the sand created by sand making machine, it likewise can do sand-choosing work or the comparable procedure. The machine expects to enhance the quality and grade of the sand.

The screw sand washer is for the most part utilized for sand preparing, electric post industrial facility, building work site and solid dam, different sands arranging and dewatering.The screw washer embraces tendency of 15°,under the water tub, three weir plates frame the dregs pool, the fasten head is drenched this pool, the screw is driven by electric engine through reducer pivoting persistently, the crisp water is sustaining from permeable plate at base of silt pool, this machine have three elements of washing, dewatering, characterizing.


The screw sand washer application:

Screw classifier can successfully seperate the mud among the material and clean the coal and sand. The materials are passed on to the assigned positon while cleaning and drying as the sprial mixes. winding sand washer is outstanding for its strict triple fixing framework, which ensures the soundness while pocessing.

screw washer is perfect for cleaning troublesome material. Extreme insoluble muds, combinations and delicate stone, and certain established totals are too hard to even think about cleaning appropriately in ordinary screw machines. The log washer altogether scouring, separates, and cleans the hardest materials. These high caliber, exceptionally sturdy machines perform well under the hardest dirt conditions with least power, water and downtime.


How can it function? 

The electric engine runs gradually with the impellor after decelerated by the belt, decelerator and gears wheel. The sand and stone stream into washing wash from sustaining wash, moves with the impellor, and granulates one another. The contamination covering the sand is washing ceaselessly. In the meantime, include more water, the solid water stream will remove waste and some low-weight squanders from washing wash. Through the above procedure, the washing capacity is done. The spotless sand and stone is lift up by vane. When it goes up gradually, the water starts to drop through the work and fall back in the washing wash.


Fundamental Features of Screw Type Sand Washer 

1. Basic structure, the impeller bearing is detached from water, significantly to keep the bearing because of flooding, sand and toxins lead to the harm.

2. There is little misfortune for medium-sized and fine sand or fine stone powder. The item is met to national principles, for example, "sand for development".

3. There is no other wearing part with the exception of the screen work.

4. Long administration life and multiple times for upkeep.

Sludge Thickening Machine

Dewatering, Liquid-Solid Separation, Classification, Thickening & Water Recycling

Dewatering & Liquid-Solid Separation

In the processing of aggregates, frac sand, coal and other industrial minerals, Belt filter press has proven reliable and efficient in the dewatering process and liquid solid separation.

Whether it's coal plant refuse dewatering, aggregate and mineral tailings dewatering, sludge and residuals slurry separation, or sludge dewatering for municipal and industrial wastewater treatment systems, Belt filter press have a variety of liquid solid separation and dewatering process technology.

Industrial waste product treatment plants ar designed to satisfy pretreatment water needs before downstream WWTP municipal facilities and / or turn out clean, safe water for direct discharge at intervals the desired limits.

Because the needs for cleaner discharge waters increase thus will the sophistication of commercial treatment processes being designed and engineered these days. And, bottle centrifuges ar being extensively used additional and additional for liquid- solid separation, sludge dewatering, and sludge thickening applications as a part of these pretreatment and / or kit and boodle operations.

What is Belt Filter Press?

Belt Filter is a broadly applicable product for dewatering municipal Biosolids and industrial sludges. Dewatering, Liquid-Solid Separation, Classification, Thickening & Water Recycling Technologies.

What is Belt Filter Press?

Belt Filter Press is a sludge dewatering device that applies mechanical pressure to a chemically conditioned slurry, which is sandwiched between two tensioned belts, by passing those belts through a serpentine of decreasing diameter rolls.

The machine can actually be divided into three zones: the gravity zone, where free draining water is drained by gravity through a porous belt; the wedge zone, where the solids are prepared for pressure application; and the pressure zone, where medium, then high pressure is applied to the conditioned solids.

How about LZZGChina?

Founded in 2010, LZZG is a professional manufacturer of mining machinery, mainly engaged in research and development of sand washing machine, dewatering screen, vibrating screen and fine sand recycling machine. Which is widely used in sand and gravel plants, mineral processing plants, construction, water conservancy and hydropower, chemical, transportation, concrete mixing stations and other industries.
After 10 years of development, lzzg has developed into a leader in the industry.

(LZZGChina)Luoyang Longzhong Heavy Machinery Co., Ltd. is an international enterprise specialized in R & D, production and marketing of mining machinery and industrial milling equipment. Our company develope the production of mining machinery and industrial milling equipment, crusher products are widely used in mining, metallurgy, construction, chemical, power, steel and other industries.

Since its inception, the company quickly occupied the global market by its reliable product quality and perfect after-sales service. The products are exported to Europe, Australia, North America, South America, Southeast Asia, the Middle East, Central Asia, Africa and other countries.
The company has senior design engineers of the mining machinery and industrial milling equipment, domestic and foreign famous universities, degrees, and other technical elites, to provide an inexhaustible driving force for sustainable development of enterprises, and they work together to ensure the long product development, design, production and after-sales service in every aspect of efficient and perfect.

Company based on market demands, always adhere to the development strategy of large research and development, precise production, and excellent service, by virtue of the excellent quality products and efficient service to meet customer needs, so that the Luoyang Longzhong Heavy Machinery thinks globally! We will fully meet your diverse needs, and cast your new brilliant!

How does belt filter press work?

Belt Filter Press dewaters slurries of pre-thickened solids from a pumpable liquid phase to a solid, conveyable, and stackable cake.

Today, belt filter press dewatering remains a preferred technology in the construction aggregate, mining, industrial and municipal markets.

(1) Thickener dehydration: chemical pretreatment stage

The belt filter press has higher requirements for flocculation effect. This machine uses a unique dosing mixer to achieve rapid flocculation and achieve the best flocculation effect.

(2) Gravity dehydration: gravity concentration dehydration stage

The sludge is evenly fed into the mesh belt through the cloth bucket. The sludge runs forward with the filter belt. The free water flows into the water tank through the filter belt under the action of its own weight. The main function is to remove the free water in the sludge, so that the fluidity of the sludge is reduced and ready for further extrusion.

(3) Low/medium pressure dewatering: wedge preloading dewatering stage

After gravity dewatering, it is still difficult to meet the sludge flowability requirements of the press dewatering section. After this stage of slight extrusion dewatering, the sludge is smoothly pressed and dewatered.

(4) High pressure dehydration: the depressurization stage of the clamp press

The filter cake is repeatedly pressed and sheared around the press roll by the upper and lower filter belts. A large amount of capillary action water is removed to gradually reduce the moisture of the filter cake.

Belt Filter Press

LZZG Sludge Dewatering Belt Filter Press is a widely applicable product for  efficient dewatering of sludge from municipal, industrial, mining and aggregaes wastewater treatment. Especially suitable for dewatering of tailings mud such as iron ore, copper ore, lead-zinc ore, fluorite ore, bauxite or rare earth ore; Dewatering operations such as ore dressing wastewater, sand washing mud, and wash plant sludge.

The slurry is sandwiched between two tensioned porous belts, by passing those belts through a serpentine of decreasing diameter rollers. Water is then removed from the slurry and a solid material is produced.

Sand Washing System For Artificial Sand

LZZG sand washing system is a combination of a fine material washer and a dewatering screen in a single machine, and producing instantly salable material with a moisture content as low as 8%.

300 T/H Sand Washing Plant Used For Sand Making

Capacity: 300T/H
Equipments: LZZG Sand Washer
Vibrating Screen
Belt Convery
Sand Maker
Jaw Crusher
Impact Crusher

LZZG provide one-step service: field service, production solutions, installation. More information: export@lylzzg.com

Sand and Gravel Washing Plant Indonesia

Sand and Gravel Washing Plant Installed in Indonesia



 LZZG sand washing plants are designed for the process of sand grading and washing, dewatering, fines recycling and muddy water purifying.



Our washing plants for sale are capable of processing 30-400 tonnes/h of quarried sand and gravel feed materials to produce a variety of different standard aggregates and sand.



 Get more details: https://www.lzzgchina.com/washing-plant/

Washing Plant for Artificial Sand

Washing Plant for Artificial Sand

LZZG sand washing plants are designed for the process of sand grading and washing, dewatering, fines recycling and muddy water purifying. Our washing plants for sale are capable of processing 30-400 tonnes/h of quarried sand and gravel feed materials to produce a variety of different standard aggregates and sand.

Sand Washing Machine for Kaolin in Pakistan

Sand Washing Machine for Kaolin washing, the project is to wash kaolin.

Main equipments:

Screw sand washer,
Fines recovery unit,
Tailing dewatering screens.

More details: export@lylzzg.com
Website: https://www.lzzgchina.com/sand-washing/

Sand Washing Plant for Sale Sri lanka

LZZG filter press is a piece of sludge dewatering equipment that separates liquids and solids using pressure filtration.


When working, slurry will be pumped into filter presses and dewatered with pressure. Each Filter press need to be designed based on the types of slurry as well as the volumes.

Our filter presses are supplied for a wide application in municipal & industrial industries. Feed mud concentration always be 30%-40%, then mud will become mud cake and the humidity is around 20% after processed by the filter presses.

Sand Washing Plant Manufacturer

LZZG sand washing solutions are ideal for washing and dewatering sand for use in concrete, building, and plaster sand for construction and rendering uses. skid mounted, semi-mobile sand washing plants screen, wash and dewater millions of tonnes of sand annually.

Our sand washing plants have throughput capacities of up to 200 tonnes per hour. With the large demand for processed materials locally and internationally, and to meet the requirement of building contractors, we offer a complete range of skid mounted, semi-mobile sand washing plants.