Product Introduction
The fine sand recycling machine focuses on solving the industry problem of fine sand loss with a particle size of over 0.075mm during the sand washing operation. Relying on the innovative process system of the cyclone classifier and the dewatering screen working in coordination, it can increase the fine sand recycling efficiency to the range of 85%-95%, and the solid content of the finished materials can be stably maintained at 70%-85%. This not only significantly optimizes the aggregate gradation but also greatly improves the comprehensive utilization rate of resources.
In the production line of machine-made sand, fine sand is often easily lost with wastewater due to its light weight, which not only causes resource waste but also sedimentation in the sedimentation tank, increasing the cost of sewage cleaning and treatment.
As an important auxiliary equipment, the fine sand recycling machine can not only efficiently recover lost fine sand, allowing resources to be reinvested in production, but also has become a key equipment in the processing field, helping production lines reduce waste, lower costs, and achieve efficient and economical operation.
Three core advantages
Adopting an innovative energy-saving design, the dewatering screen accelerates the rapid separation of water through high-frequency vibration (with an amplitude range of 0.05 - 1.5mm). The energy consumption for processing each ton of materials is only 0.3kW·h. The equipped wear-resistant rubber screen plate is durable, with a service life of over 5000 hours. The fully enclosed operation system effectively suppresses the spillage of dust, and the operating noise is controlled below 85dB, fully meeting environmental protection standards and achieving a perfect balance between high-efficiency production and green environmental protection.
The fine sand recycling machine is equipped with an advanced high-pressure cyclone group, and it achieves precise separation of mud and sand by means of centrifugal sedimentation technology. With this intelligent grading system, the recycling rate of fine sand with a particle size of over 0.075mm is as high as over 95%. Compared with traditional equipment, the loss of fine sand is reduced by 80%. While recycling fine sand, the equipment can effectively remove mud powder impurities, ensuring that the mud content of the finished sand is controlled within 1%. This greatly enhances the quality of sand and gravel.
The equipment features a modular structural design, and key components can be quickly disassembled and assembled within 20 minutes, significantly shortening the maintenance time. The wear-resistant inner lining of the cyclone has the function of being flipped and reused, effectively reducing the maintenance cost by 60%. The intelligent variable frequency control system can monitor and adjust the flow rate and rotation speed in real time, flexibly adapting to materials with different mud contents. The operation precision is increased by 70%, making the operation of the equipment more intelligent and efficient.
Performance parameters
|
Model |
Feed size (mm) |
Processing capacity (t/h) |
Sieve plate specifications (mm) |
Separator specifications (mm) |
Power (kw) |
Dimensions (mm) |
|
LZ1530-65 |
≤10 |
30-60 |
1500*3000 |
300*2 |
36 |
3300*5250*3000 |
|
LZ1842-75 |
≤10 |
40-80 |
1800*4200 |
350*2 |
48 |
4600*5560*3520 |
|
LZ2442J-120 |
≤10 |
100-150 |
2400*4200 |
300*4 |
82 |
4600*6250*3600 |
|
LZ3048J-140 |
≤10 |
120-200 |
3000*4800 |
350*4 |
104 |
5400*7000*4200 |
|
LZ3060J-180 |
≤10 |
120-200 |
3000*6000 |
300*6 |
127 |
6600*7000*4200 |
|
LZ3660J-180 |
≤10 |
150-250 |
3600*6000 |
300*6 |
134 |
6600*7000*4800 |
Working Principle
As a vital industrial equipment, the fine sand recovery machine finds extensive applications across numerous fields. To better understand and utilize this device, it is essential to delve into its working principle.
The operational sequence of a fine sand recovery machine proceeds as follows: First, a pump conveys the sand-water mixture into a hydrocyclone. Within the hydrocyclone, centrifugal force separates the concentrated fine sand, which then enters a vibrating screen via a sand discharge nozzle. The vibrating screen effectively separates the fine sand from moisture through its dewatering function. Any residual fine sand and silt that remain partially mixed are returned to the washing tank via a return hopper. When the liquid level in the washing tank reaches a predetermined height, excess material is discharged through the outlet. Additionally, the equipment incorporates a linear vibrating screen capable of recovering material with a weight concentration of 70%-85%. Users can control the fineness modulus by adjusting the pump speed, altering the slurry concentration, modifying the overflow water volume, or replacing the sand discharge nozzle. This enables flexible operation across the three functions of washing, dewatering, and grading.
Structure of Fine Sand Recovery Machine
The fine sand recovery machine is a specialized device for recovering fine sand, primarily consisting of the following components:
1. Washing Tank: The washing tank is a crucial part of the fine sand recovery machine, serving to store and transport the sand-water mixture awaiting processing. It typically features a funnel shape to facilitate material concentration and smooth transfer to subsequent stages;
2. Slurry Pump: The slurry pump conveys the sand-water mixture from the washing trough to the hydrocyclone. Constructed from highly wear-resistant materials, it ensures stability and durability during prolonged operation.
3. Motor: The motor powers the fine sand recovery machine, typically connected to components like the slurry pump and dewatering screen. Its power and rotational speed are selected based on processing capacity and equipment requirements.
4. Hydrocyclone: The hydrocyclone is the core component of the fine sand recovery machine, separating fine sand from slurry through centrifugal sedimentation. Its interior features a conical chamber fitted with multiple hydrocyclone blades;
5. Vibrating Screen: The vibrating screen dewaters the fine sand separated by the hydrocyclone. Vibrating screens typically employ polyurethane screens, characterized by high wear resistance and reduced clogging;
6. Washing Tank: The washing tank stores and cleans the fine sand separated by the hydrocyclone. Water within the tank can be recycled to enhance water utilization efficiency;
7. Return Hopper: The return hopper collects and returns small amounts of fine sand and slurry. These materials are circulated back to the washing tank for recovery;
8. Dewatering Screen: The dewatering screen further dehydrates the fine sand to increase its solids content. Typically driven by a vibrating motor, it achieves sand dewatering through high-frequency vibration.
These components work in concert through processes like centrifugal sedimentation, vibrating screening, and dewatering to achieve efficient recovery and dehydration of fine sand.
Why choose a fine sand recycling machine?
|
Dimension |
core value |
specific instructions |
|
resource utilization |
Reduce fine sand loss and increase production |
The loss rate of fine sand in traditional production lines can reach 15% -30%, and the recovery rate of fine sand recycling machines can reach 85% -95%. They can recycle hundreds or even thousands of tons of fine sand annually, directly increasing the total output of sand and gravel. |
|
product quality |
Optimize sand grading and improve the quality of machine-made sand |
Fine sand is an important component of building materials such as concrete and dry mix mortar. The lack of fine sand can lead to unreasonable sand grading and affect the strength of building materials. After recycling fine sand, the gradation of machine-made sand is more in line with national standards, enhancing the competitiveness of the product in the market. |
|
cost control |
Reduce the cost of sewage treatment and sedimentation tanks |
The loss of fine sand with wastewater flow can cause rapid sedimentation in the sedimentation tank, requiring frequent dredging; After recycling fine sand, the sand content in the wastewater is significantly reduced, the sedimentation rate in the sedimentation tank slows down, the dredging cycle is extended by more than 50%, and the amount of sewage treatment agents is reduced. |
|
Environmental compliance |
Realize wastewater circulation and reduce wastewater discharge |
After recycling fine sand, the wastewater can be further treated and reused for sand washing, achieving a "closed loop of water resources", reducing the amount of discharged water, and helping enterprises meet environmental policy requirements. |
Application scenarios
Sand and gravel aggregate plants
In sand and gravel aggregate plants, through the secondary recycling of fine sand in the tailwater of sand washers, the output rate of finished sand can be increased by 15% - 25%. This effectively improves the utilization rate of resources, reduces raw material waste, and significantly increases economic benefits.
Concrete mixing plants
For concrete mixing plants, the use of fine sand recycling equipment can optimize the gradation of manufactured sand and precisely reduce the content of stone powder. In this way, it can produce concrete products with more stable quality and better performance, providing reliable material guarantee for construction projects.
Tailings resource utilization
In the field of tailings resource utilization, this equipment can achieve the efficient recycling of fine-grained materials such as slag sand and steel slag sand. It not only converts solid waste into usable resources but also helps enterprises achieve the environmental protection goal of zero solid waste emissions, promoting the development of the circular economy.
Environmental protection projects
In terms of environmental protection projects, fine sand recycling equipment can purify and recycle the slurry water, greatly reducing the frequency of sedimentation tank cleaning. The cleaning cost can be reduced by 90%, effectively alleviating the burden of environmental protection treatment and improving the efficiency of environmental governance.
Quality assurance
The main machine frame is made of high-quality Q235B thickened steel with a thickness of 10-16mm. Through special technological treatment, it ensures that the equipment has excellent stability and anti-deformation ability. The inner lining of the cyclone is made of Cr18Mo2 high-chromium alloy material. With its outstanding wear resistance, it can effectively cope with high-wear working conditions and significantly extend the service life of the equipment.
The core components have all passed the international authoritative ISO18802 certification, and their quality is trustworthy. High-end imported bearings from brands such as SKF and FAG are used in key positions. With exquisite manufacturing technology and strict quality control, it ensures that the bearings can operate stably for more than 15,000 hours, significantly reducing the equipment maintenance frequency.
The PLC intelligent monitoring system is a standard configuration, acting like a "device butler" on duty 24 hours a day. It can monitor the operation status of the equipment in real time and accurately warn of abnormal situations such as blockages and overloads. It supports remote operation and maintenance functions. The professional technical team can respond within 30 minutes after a failure occurs, quickly solve problems, minimize downtime, and ensure the efficient operation of production.
Installation and Operation Precautions
Upon arrival of the equipment at the site, the user shall carefully inspect and accept the equipment according to the packing list.
1. Securely position the washing tank on the pre-poured concrete foundation, ensuring precise leveling of the channel steel frame with an error tolerance of ±2mm.
2. When installing the dewatering screen, ensure consistent spacing between the four support beams and spring-mounted upper bearings. The upper and lower surfaces of the bearings must remain parallel, while the rubber springs should be perpendicular to the ground plane.
3. Pump installation is equally critical. Position the pump securely on the foundation, ensuring the base is leveled and firmly packed against the ground.
Following these steps and precautions ensures efficient installation and stable operation of the fine sand recovery machine, thereby better contributing to environmental protection efforts.
Value Innovation
Compared with traditional processing technologies, the fine sand recycling machine demonstrates powerful resource-saving capabilities. With the help of this equipment, a single production line can reduce the loss of more than 10,000 tons of fine sand annually. According to calculations, the comprehensive cost per ton of materials can be reduced by 15 to 20 yuan, significantly improving production efficiency. In practical applications, after a certain concrete mixing station introduced this equipment, the qualification rate of aggregate gradation increased by 40%, effectively improving the stability of concrete quality, and the annual economic benefits increased by more than 500,000 yuan. Relying on the dual advantages of "high-efficiency recycling + intelligent control", the fine sand recycling machine not only improves the resource utilization rate but also helps enterprises reduce operating costs and environmental pollution, achieving the coordinated development of resource optimization, economic benefits, and environmental protection.
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