I. Applicable Operating Conditions and Separation Objectives

● Processed materials: natural albite, accompanied by potassium feldspar, quartz, biotite, iron‑stained particles, yellow‑coated foreign stones, clay, and other impurities.  
● Feed particle size: dry separation, 1–150 mm; wet separation, 8–150 mm.  
● Key performance indicators: color-sorting accuracy ≥ 99.9%, carry‑over rate ≤ 1%; improved product whiteness and sodium oxide content, with reduced iron impurity levels.  
● Equipment processing capacity: 5–100 t/h; optimal particle size: 1–5 cm.

II. Main Sorting Process Flow

1. Dry separation (in arid mining areas in northern regions, where the raw material has low moisture content)  
Raw ore → Crushing → Wet washing to remove clay → Drying → Multi‑stage classification → Guxin double‑belt color sorter → Finished product / Waste.  
2. Wet beneficiation (common in southern mining areas with abundant rainfall, where raw materials have high moisture content and are prone to dust generation)  
Raw ore → Crushing → Ore washing and desliming → Pre‑classification → Wet color sorting → Dewatering → Finished product.

III. Equipment Structure and Separation Principle

● Double-layer conveyor feeding system: the upper conveyor achieves preliminary material dispersion, while the lower conveyor ensures uniform single-layer distribution, preventing material buildup and overlap, reducing ore breakage, and ensuring measurement stability; it is well-suited for fragile feldspar materials.  
● Multispectral Intelligent Recognition System: Equipped with a high-speed line-scan CCD camera and visible‑light plus near-infrared multispectral illumination, it leverages a parallel DSP+FPGA algorithm to perform three-dimensional recognition based on color, texture, and morphology, accurately distinguishing albite from orthoclase, quartz, mica, and iron‑stained heterochromatic particles.  
● High-speed jet actuator: with a high-frequency solenoid valve response time of less than 1 ms, a fully covered array of independent blow nozzles ensures that good products follow their designated trajectory into the finished‑goods bin, while contaminants are precisely blown into the reject bin by the airflow, delivering fast and precise sorting.

IV. Three-Stage Progressive Classification Process

● Rough sorting: Removes large foreign stones, heavily iron‑stained materials, and yellow‑skin waste, thereby reducing the downstream sorting load and ensuring production capacity.  
● Selected: Precise sorting removes fine iron inclusions, as well as difficult-to-separate impurities such as associated mica, potassium feldspar, and quartz, thereby establishing a stringent whiteness standard for the finished product and ensuring consistent quality.  
● Scanning and sorting: A secondary sorting process is applied to the selected waste materials, enabling the recovery of intergrown albite and increasing the overall raw material recovery rate by 3% to 5%.

V. Partition Parameter Configuration

● Fine particle size: 1–5 mm, suitable for the separation of fine-grained feldspar feedstock.  
● Medium particle size: 5–30 mm, the mainstream processing granularity and a standard production configuration.  
● Coarse size class: 30–80 mm, intended for the direct separation of large‑size raw ore.  
Using pure white/creamy-white albite as the reference, custom yellow‑tone and gray‑tone identification thresholds are defined to accommodate the varying ore characteristics of different mining areas.

VI. Segmented Application Scenarios

● Primary ore‑processing scenario: at open‑pit albite mines and underground feldspar mines, after crushing and sizing, the raw ore is directly subjected to color sorting to promptly remove waste rock and surface‑contaminating iron oxides, thereby reducing costs in subsequent grinding and magnetic separation stages. This approach is well suited for medium‑ to large‑scale feldspar mining operations.  
● Feldspar Beneficiation Plant: A specialized non-metallic mineral processing facility that integrates crushing, washing, and grinding into a complete production line. Serving as the core purification equipment, it produces high-purity sodic feldspar concentrate in bulk, meeting the demands of continuous industrial-scale production.  
● Ceramic raw-material processing scenario: A specialized sodalite‑feldspar production line for ceramic bodies and glazes, which rigorously removes color‑causing iron impurities and mica, ensuring the whiteness, gloss, and firing stability of finished ceramics—standard equipment for ceramic raw-material manufacturers.  
● Glass and flux‑raw‑material applications: In the production of household glass, industrial glass, and refractory materials, sodium feldspar is sorted and purified as a fluxing agent, with impurities removed to prevent defects such as black spots and bubbles in the final glass product.  
● Building materials and engineered wood panel raw materials: production lines for artificial quartz stone and stone slab materials, featuring screening of high‑whiteness sodalite particles to enhance the surface aesthetics and appearance of the panels and improve the yield of qualified finished products.  
● Small and micro processing workshop scenario: small-scale individual ore processors and local contract‑processing stations. The equipment occupies minimal space, is easy to operate, and offers flexible dry‑and‑wet processing, making it well suited to sorting raw materials with low throughput, multiple batches, and a variety of specifications.  
● Foreign‑trade ore beneficiation scenario: A feldspar export processing company conducts precise sorting in accordance with the stringent color and impurity specifications of its overseas customers, producing high‑quality mineral products that meet these standards and thereby enhancing product value added and export competitiveness.  
● Summary of the equipment’s core advantages: The entire unit features a sealed, dust‑ and water‑proof design, supports all‑weather dry and wet operation, and delivers low energy consumption and stable performance. Its AI‑powered multispectral recognition is adaptable to various local albite ore veins, replacing manual sorting and significantly boosting purification efficiency and product grade.

VII. Model and Technical Specifications

Note: The above yields are based on a particle size of 1–5 cm (including 5% impurities).

VIII. Technical Advantages of the Product

1. Image Processing System  
Cutting-edge DSP and FPGA processing technologies, combined with color‑ and spatial‑based multi‑mode complex algorithms, deliver “color sorting + shape sorting” capabilities tailored to various materials. With freely configurable modes, you can select from a vast array of material types.  
2. Camera Acquisition System  
Imported high-precision camera lenses ensure clear, accurate imaging; an imported high‑precision 5400‑pixel high‑speed linear full‑color smart CCD is employed for high‑definition recognition and rapid sorting.  
3. Self-priming nozzle  
Equipped with a professional high-speed air valve, it delivers rapid actuation, low power consumption, and extended service life; reduces air consumption, achieves faster response, more precise impact, lower carry‑over ratio, and higher throughput; with a service life exceeding 10 billion cycles.  
4. Light Source System  
LED optical design system, with multiple light source options to accommodate various materials; addresses issues such as high temperature, significant power loss, and shortened lifespan that arise from prolonged LED operation; ensures long-lasting durability under stable temperature conditions.  
5. Feeding System  
An advanced material-feeding detection system is employed to ensure uniform material flow.  
6. Crawler Conveyor  
It employs a tracked conveyor system, delivering excellent color‑sorting performance and stable material transport, which effectively increases the carry‑over ratio and sorting purity while significantly reducing material breakage during the color‑sorting process.  
7. Wide range of applications  
Corresponding operating modes have been designed for different materials, enabling a single machine to perform color sorting across various materials.  
8. Simple and easy to operate  
Touchscreen displays from professional manufacturers, an intuitive human–machine interface, a clear and easy-to-read operation menu, and simplified settings enable customers to quickly master the various functions of the color sorter.

9. Customer Color Sorting Site