Half-Wet Material Crusher

Complete Operation and Maintenance Process of Half-Wet Material Crusher

Applicable Raw Materials for the Equipment

Preferred Materials

1. Organic Fertilizer Fermentation Raw Materials (Mainstream Scenarios): Well-rotted chicken manure, cow manure, pig manure, sheep manure, and other livestock and poultry manure; mushroom residue, traditional Chinese medicine residue, sugarcane filter mud, distiller’s grains, humic acid; straw + manure mixed fermentation material; urban sludge, kitchen waste fermentation residue.
2. Solid Waste Resource Utilization Materials: Garden debris, straw compost, livestock bedding, organic waste fermentation material.
3. Other Organic Raw Materials: High-moisture fermented cake, water-containing leaf mold, biogas residue and biogas slurry sediment solids.

Material Moisture Content Suitable Range: Standard operating conditions allow for stable processing of materials with a moisture content of 25%~55%; the optimal operating range is 30%~40%, with the highest crushing efficiency and minimal blade wear; for moisture content >55%, moderate drying is recommended to reduce blade adhesion and wear.

Materials Prohibited from Input: Hard foreign objects such as metal blocks, stones, and pebbles; dry and hard ores with a compressive strength > 80MPa; brittle dry fertilizer clumps (suitable for cage crushers); extra-long whole logs and thick plastic film (easily entangle the rotor blades).

Applications of the Equipment

The half-wet material crusher has a wide range of applications, mainly focusing on the following aspects:

1. Organic Fertilizer and Bio-organic Fertilizer Production

The half-wet material crusher is a core crushing equipment in the organic fertilizer production industry, and is the core equipment in the post-fermentation clinker crushing and homogenization chemical section of the organic fertilizer production line. It is widely used in:

Livestock and poultry manure treatment (chicken manure, pig manure, cow manure, sheep manure, etc.); rural straw and garbage crushing; peat moss crushing; mushroom residue crushing; traditional Chinese medicine residue crushing; biogas residue treatment

2. Urban Solid Waste and Sludge Treatment

Urban solid waste composting treatment; urban sludge treatment; resource utilization treatment of kitchen waste

3. Industrial Organic Waste Treatment

Wine and sugar factory waste treatment; industrial organic waste treatment; chemical raw material crushing

4. Grinding of Hard Impurities

The half-wet material crusher grinds hard materials such as glass, ceramics, bricks, and gravel in urban solid waste and organic fertilizer raw materials, making them safe for application.

Application of the Equipment in the Production Line

In organic fertilizer and bio-fertilizer production lines, the half-wet material crusher is typically located after the fermentation process and before the granulation process, serving as a key connecting link between the preceding and following processes:

1. Process Location

Raw material pretreatment → Fermentation turning → [half-wet material crusher] → Batching and mixing → Granulation → Drying → Cooling → Screening → Packaging

2. Process Benefits:

1) Shortened Process Flow: Traditional processes require drying and then pulverizing high-moisture fermented materials. half-wet material pulverizers can directly process fermented materials with a moisture content of 25%–50%, eliminating the pre-drying step and significantly reducing energy consumption and equipment investment.

2) Improved Granulation Quality: Pulverizing fermented materials to a uniform fine powder of 0.5–5mm results in higher pelleting rates and more uniform particles in subsequent granulators (such as rotary drum granulators and disc granulators).

3) Grinding Hard Objects: Grinding hard impurities such as glass, ceramics, bricks, and gravel mixed in the material prevents damage to subsequent granulation equipment.

4) Adaptable to Multiple Formulas: Whether it’s pure livestock and poultry manure, straw-manure mixtures, or bio-organic fertilizers with added microbial agents, the pulverization fineness can be adjusted to meet different formula requirements.

3. Integration with Supporting Equipment

1) Front End: Connects to fermentation equipment (trough-type compost turner, tracked compost turner) to receive the half-wet material after fermentation;

2) Back End: Connects to automatic batching system, mixer, and granulator to provide raw materials with qualified particle size for granulation;

3) Dust Removal Support: It is recommended to install a dust removal system at the inlet and outlet to reduce dust concentration in the workshop and improve the working environment.

Common Equipment Faults and Solutions

Target Customers for Equipment:

1. Large-scale organic fertilizer production enterprises: Plants producing organic fertilizer from livestock and poultry manure, bio-fertilizers, and humic acid fertilizers; core purchasing group.
2. Small and medium-sized livestock and poultry farms supporting fertilizer processing plants: Chicken farms and pig farms with self-built manure resource utilization processing workshops.
3. Urban solid waste treatment enterprises: Kitchen waste treatment stations, municipal sludge treatment centers, and garden waste resource utilization bases.
4. Manufacturers of microbial inoculants and substrate nutrient soil: Enterprises processing seedling substrates, flower nutrient soil, and microbial residue.
5. Organic fertilizer complete equipment engineering companies: General contractors for fertilizer production lines and equipment export manufacturers.
6. Small-scale composting stations in villages and towns, and agricultural cooperatives: Small-scale production lines for centralized fermentation and fertilizer production by individual households.
7. Enterprises utilizing agricultural and sideline waste such as medicinal herb residue, distiller’s grains, and sugarcane filter mud.

Performance Characteristics and Core Advantages of the Equipment

The core advantages of the half-wet material crusher include:

1. Screen-free and anti-clogging: No screen or sieve bottom is designed, allowing for the crushing of over a hundred types of materials. High-moisture materials will not clog, and even materials just retrieved from water can be processed normally.
2. Dual-stage high-efficiency crushing: The upper and lower rotors work in series, achieving twice the crushing efficiency of single-stage equipment, with uniform output particle size.
3. High-alloy wear-resistant parts: The hammers are made of forged high-alloy wear-resistant material, making them strong, wear-resistant, and with a service life far exceeding that of ordinary hammers.
4. Two-way gap adjustment technology: Wearing hammers requires no repair; they can be moved for continued use. The output particle size can be controlled by adjusting the gap.
5. Simple operation and maintenance: Single-person operation of multiple machines; centralized lubrication system supports non-stop oiling, resulting in low maintenance costs.
6. Energy consumption advantage: The overall power consumption is reduced by more than 25% compared to traditional crushers, meeting the industry standard of “Organic Fertilizer Processing Equipment” (JB/T 1093-2018).
7. Fully enclosed and environmentally friendly: The equipment operates in a closed system, and with the dust removal system, the dust leakage rate is extremely low, meeting environmental protection requirements.