Dry-mixed mortar sand making equipment is designed to produce high-quality artificial sand or fine aggregates specifically for dry-mixed mortar applications. This equipment ensures the sand meets strict particle size, تدرج, and cleanliness standards required for mortar formulations. Below are key aspects of such systems:

1. Core Equipment for Dry-Mixed Mortar Sand Production
- الكسارات:
- *Jaw Crusher*: Primary crushing of raw materials (على سبيل المثال, الحجر الجيري, الجرانيت).
- *Impact Crusher* or *Cone Crusher*: Secondary crushing to achieve finer particles.
- *تأثير العمود الرأسي (الجميع) Crusher*: Critical for shaping sand particles and improving gradation (cubic-shaped grains reduce mortar shrinkage).

- Sand Making Machine:
- Uses a "stone-on-stone" أو "stone-on-iron" principle to produce sand with adjustable fineness modulus (typically 1.2–3.0 for mortar).

- Screening System:
- *Vibrating Screens*: Separate sand into different fractions (على سبيل المثال, 0–0.6 mm, 0.6–1.18 mm, 1.18–2.36 mm) to meet mortar mix designs.
- *Air Classifiers*: Optional for ultra-fine particle control (<75 μm).

- Sand Washing & نزح المياه:
- *Wheel Sand Washer* or *Spiral Classifier*: Removes clay, تراب, and impurities (critical for bond strength in mortar).
- *Dewatering Screen* or *Fine Sand Recovery Unit*: Reduces moisture content (<3% for dry-mixed mortar).

2. Key Features of High-Quality Mortar Sand
- شكل الجسيمات: Cubic or spherical grains enhance workability and reduce water demand.
- التحكم في التدرج: Balanced distribution (على سبيل المثال, complying with ASTM C144 or EN 13139).
- Low Clay/Silt Content: <3% to avoid cracking and poor adhesion.
- التحكم في الرطوبة: <0.5% moisture after drying (to prevent clumping in dry mixes).

3. Auxiliary Systems
- Drying System:
- *Rotary Dryer*: Reduces moisture in natural or crushed sand using hot air (fuel options: غاز, الفحم, الكتلة الحيوية).

- جمع الغبار:
- *Bag Filters* or *Cy