I. Site Selection and Layout

1. Geographical Location:
   • Choose a location with convenient transportation, close to raw material sources (such as livestock and poultry farms, agricultural waste collection points) and product sales markets.
   • Avoid selecting sites in environmentally sensitive areas, such as residential zones, water source protection areas, and scenic spots.
2. Topography and Geomorphology:
   • Prioritize flat terrain with good drainage for easy construction of factories and equipment placement.
   • Consider geological conditions to ensure a stable foundation and avoid geological hazard risks.
3. Plant Layout:
   • Based on the production process, reasonably divide the plant area into raw material storage, pre-treatment, fermentation, post-treatment, finished product storage, office, and living quarters.
   • Set up reasonable logistics and fire lanes between different areas to ensure smooth material transportation and safety.
   • Consider wind direction and sunlight conditions, placing fermentation areas (which may generate odors) downwind and office and living quarters upwind.

II. Raw Material Processing System Design

1. Raw Material Reception and Storage:
   • Construct a raw material receiving station equipped with weighing and unloading devices for rapid reception and measurement of raw materials.
   • Build different types of raw material storage facilities, such as enclosed warehouses and open storage yards, based on the type and characteristics of raw materials to ensure safe storage.
2. Raw Material Pre-treatment:
   • Design appropriate pre-treatment processes, such as crushing, screening, and mixing, for different raw materials to improve their uniformity and fermentation efficiency.
   • Equip with necessary pre-treatment equipment, such as crushers, screeners, and mixers.

III. Fermentation System Design

1. Fermentation Process Selection:
   • Choose an appropriate fermentation process based on raw material characteristics and product requirements, such as windrow fermentation, trench fermentation, or tank fermentation.
   • Large-scale organic fertilizer plants typically adopt trench or tank fermentation processes to improve fermentation efficiency and product quality.
2. Fermentation Equipment Configuration:
   • For trench fermentation, construct fermentation trenches and equip them with turners and ventilation devices to achieve uniform fermentation and oxygen supply.
   • For tank fermentation, build fermentation tanks and equip them with stirring devices and temperature control systems for rapid fermentation and temperature regulation.
3. Fermentation Process Control:
   • Install monitoring equipment for temperature, humidity, and oxygen content to monitor fermentation process parameters in real-time.
   • Adjust turning frequency and ventilation volume based on monitoring results to ensure stable fermentation.

IV. Post-treatment System Design

1. Screening and Crushing:
   • After fermentation, screen the material to separate large impurities and incompletely fermented raw materials.
   • Crush the screened material to meet the particle size requirements of the finished product.
2. Granulation and Drying:
   • Choose an appropriate granulation process based on product requirements, such as disc granulation or drum granulation.
   • Equip with drying equipment, such as rotary dryers or fluidized bed dryers, to reduce the moisture content of the finished product and improve its stability.
3. Cooling and Packaging:
   • Cool the dried finished product to avoid clumping during high-temperature packaging.
   • Equip with packaging equipment, such as automatic packaging machines and sewing machines, for automated packaging and storage of finished products.

V. Environmental Protection and Energy Conservation Design

1. Exhaust Gas Treatment:
   • Collect and treat exhaust gases generated during the fermentation process to prevent environmental pollution.
   • Adopt exhaust gas treatment technologies, such as biofilters or activated carbon adsorption, to ensure达标 (meet standards) emissions.
2. Wastewater Treatment:
   • Collect and treat wastewater generated during production for recycling or达标 (compliant) discharge.
   • Use wastewater treatment processes, such as sedimentation, filtration, and biological treatment, to reduce pollutant content in wastewater.
3. Energy Conservation Design:
   • Select energy-efficient equipment, such as variable frequency drive motors and energy-saving dryers, to reduce energy consumption.
   • Optimize the production process to minimize material handling and energy loss, improving energy utilization efficiency.

VI. Automation and Intelligence Design

1. Automation Control System:
   • Adopt automation control systems, such as PLC (Programmable Logic Controller) or DCS (Distributed Control System), for automated control of the production process.
   • Through automation control systems, real-time monitoring of production parameters, adjustment of equipment operating status, and improvement of production efficiency can be achieved.
2. Intelligent Management:
   • Introduce intelligent management systems, such as ERP (Enterprise Resource Planning) and MES (Manufacturing Execution System), for information-based and intelligent production management.
   • Through intelligent management systems, production plans can be optimized, production efficiency improved, and production costs reduced.

VII. Safety and Fire Protection Design

1. Safety Design:
   • Comply with national safety regulations and standards to ensure safety during production.
   • Equip with necessary safety protection facilities, such as guardrails and safety warning signs.
   • Provide safety training and education to employees to enhance their safety awareness and operational skills.
2. Fire Protection Design:
   • Comply with national fire protection regulations and standards to ensure fire safety in the plant area.
   • Equip with necessary fire protection facilities, such as fire hydrants, fire extinguishers, and fire alarm systems.
   • Conduct regular fire drills and inspections to ensure the good condition and effectiveness of fire protection facilities.