New Craftsmanship Powers a Brighter Future | Automated Production Line of High-Flow Disc Bead Mill & Spray Granulation Dryer Enables Industrial Manufacturing of DF Dry Flowables

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New Craftsmanship Powers a Brighter Future | Automated Production Line of High-Flow Disc Bead Mill & Spray Granulation Dryer Enables Industrial Manufacturing of DF Dry Flowables

2026-07-03

Driven by the sustainable development of agrochemicals and the transition to green pesticides, high-efficiency, eco-friendly and safe pesticide formulations have become the mainstream trend of the industry. As an advanced solid formulation featuring water-based composition, dust-free operation and outstanding dispersibility, Dry Flowable (DF) agents stand out for their superior suspension rate, wettability and disintegration speed alongside eco-friendly attributes. In recent years, market demand for DF has kept rising steadily, with wide applications in insecticides, fungicides, herbicides and other products. Institutional forecasts project that the global DF formulation market will register an annual compound growth rate exceeding 8% over the next five years. In key agricultural markets including Europe, America, Southeast Asia and China, policy incentives and growing end-user demand for green plant protection products are accelerating the phase-out of traditional emulsifiable concentrates and wettable powders in favor of eco-friendly new formulations such as DF.

Against this backdrop, realizing high-quality, large-scale, intelligent and clean industrial production of DF has become a core challenge for pesticide chemical enterprises undergoing transformation and upgrading. Drawing on years of profound expertise in fine chemicals, Longxin Intelligent has innovatively launched an automated production line integrating high-flow disc bead mills and spray granulation dryers. Pioneering a new era of DF industrialization with its proprietary "Xin" craftsmanship, this integrated line empowers clients to boost productivity, upgrade product quality, cut costs and reduce carbon emissions, and propel China’s pesticide formulation industry toward high-end and green development.

Analysis of DF Production Technology: A Systematic Process from Milling to Drying

The preparation of DF generally consists of five core procedures: technical material pretreatment, wet grinding, stabilizing dispersion, spray granulation and drying, as well as sieving and packaging. Among these, ultrafine wet grinding and spray granulation drying are the critical processes determining DF product quality and production capacity.

Conventional DF manufacturing mostly adopts batch ball mills or basket bead mills paired with fluidized bed dryers, plagued by low grinding efficiency, inconsistent batch quality, high energy consumption and severe dust pollution. Such outdated setups fail to meet the strict requirements of modern pesticide manufacturers for continuous, automated and clean production. Targeting these pain points, the integrated grinding and drying automatic production line independently developed by Longxin Intelligent delivers full closed-loop control from slurry preparation to finished product discharge through process integration and equipment innovation.

The complete production line takes the high-flow disc bead mill as the front-end core to complete nano-scale ultrafine grinding of active ingredients, followed by a DF-specialized spray granulation dryer that converts homogeneous and stable slurry directly into free-flowing pellets with controllable moisture content and narrow particle size distribution. Equipped with a PLC central control system, online monitoring modules, temperature & humidity sensor networks and a Clean-in-Place (CIP) one-touch cleaning system, the line supports unattended intelligent operation and precise quality control.

Breakthrough Proprietary Craftsmanship: Synergistic Advantages of High-Flow Disc Bead Mill & Spray Granulation Dryer for DF Industrialization

Longxin Intelligent’s combined solution of high-flow disc bead mill and spray granulation dryer is far more than a simple series connection of equipment; it represents in-depth integration of process logic, energy matching and intelligent control, forming an efficient tandem system for DF mass production.

High-Efficiency Milling to Guarantee Superior Slurry Quality
The high-flow disc bead mill adopts double mechanical end-face seals, polyurethane liners and high-density zirconia grinding media, paired with an optimized rotor structural design. It delivers continuous grinding capacity of several tons per hour with low energy consumption. Its unique cooling system maintains stable temperature during long-hour operation to prevent thermal decomposition of heat-sensitive technical materials. Post-grinding slurry achieves a D90 particle size of 1–10 μm, providing high-stability, low-viscosity feedstock ideal for subsequent spray drying.
Precision Drying for One-Step Pellet Forming
The matched DF-specific spray granulation dryer employs pressure atomization combined with co-current/mixed-flow drying modes, equipped with adjustable hot air distributors and multi-stage cyclone separation systems to ensure uniform heating and controllable residence time of pellets inside the drying tower. The finished DF pellets are nearly spherical with excellent flowability, moisture content below 0.5% and rapid disintegration performance, fully complying with technical specifications for DF formulations.
Automated Integration to Improve Overall System Efficiency
The entire production line realizes interlinked operation via the central control system. All procedures including feed metering, grinding parameter adjustment, drying temperature curve setting and finished product packaging are monitored digitally throughout the workflow. Built-in online detectors feed back real-time slurry particle size variations to dynamically adjust the rotational speed of the bead mill; high-precision temperature sensors conduct non-contact drying inspection to guarantee consistent finished product quality. Notably, the embedded one-touch CIP cleaning system carries out programmed flushing for grinding chambers, conveying pipelines and nozzle assemblies, effectively eliminating cross-contamination between batches and greatly enhancing flexibility and safety for multi-product switching.

Core Technology Unveiled: Innovative Breakthroughs of Longxin High-Flow Disc Bead Mill

Custom-engineered for high-solid-content and high-viscosity pesticide slurries, the high-flow disc bead mill developed by Longxin Drying boasts the following technical strengths:

Ultra-High Capacity Design: Single-unit throughput reaches approximately 1 ton per hour, compatible with thousand-ton-scale DF production lines;
Efficient Energy Conversion: Variable-frequency drive motors and multi-stage disc rotors lift grinding efficiency by over 40% compared with conventional equipment;
Long-Service Wear-Resistant Construction: Inner cylinders, rotors and separation screens are manufactured from yttria-stabilized zirconia ceramics, offering superior corrosion and abrasion resistance with a service life three times longer than standard alternatives;
Intelligent Temperature Control System: Jacket circulating cooling plus internal forced heat dissipation minimizes temperature fluctuations within the grinding zone;
Modular Configuration: Easy disassembly and maintenance, supporting rapid replacement of grinding media and screen specifications to accommodate diverse product process requirements.

Custom-Built Equipment: Technical Highlights of DF-Specific Spray Granulation Dryer

Tailored to DF’s unique demands for pellet morphology, flowability and residual solvent levels, Longxin Drying has developed a full series of DF-dedicated spray granulation dryers featuring the following core merits:

Pressure Atomization System: Fitted with high-precision ceramic nozzles for concentrated atomized particle size distribution and uniform granulation;
Anti-Adhesion Tower Design: Tower wall pulse vibration hammers paired with an upgraded uniform air distribution system effectively avoid wet powder adhesion;
Multi-Stage Material Recovery Setup: A three-level recovery system consisting of primary cyclone separators, bag dust collectors and wet scrubbers achieves a powder recovery rate exceeding 99.5%;
Optional Inert Gas Protection: A nitrogen-circulating closed drying module is available for formulations involving flammable solvents to ensure production safety.

New Craftsmanship Powers a Brighter Future: Building a New Intelligent Engine for Green Agriculture

The Chinese character "Xin" embodies exquisite craftsmanship and the source of technological innovation. Centered on proprietary "Xin" craftsmanship, Longxin Drying’s fully automated DF production line combining high-flow disc bead mills and spray granulation dryers represents not merely equipment upgrades, but a revolutionary shift in manufacturing philosophy. Supported by three core pillars — high efficiency, environmental friendliness and operational safety — the line aligns with the global trend toward greener and reduced-usage pesticide formulations, serving as a vital tool to advance the green transformation of agriculture.

The brand-new DF production unit integrates an advanced real-time monitoring platform that digitally governs all key parameters throughout the workflow, including temperature, humidity, particle size, air volume and pressure. Intelligent online inspection delivers ultra-precise moisture control, while the one-touch cleaning system enables automatic sanitation of equipment and pipelines to eliminate cross-contamination risks at the source. This DF production line transforms liquid raw materials into solid finished goods and shifts manual operation to full automation and intelligence. It embodies the ingenuity of every R&D engineer, where high-end proprietary equipment and self-developed processes converge to deliver more intelligent and stable manufacturing.

Looking ahead, Longxin Drying will continue to deepen its focus on pesticide formulation equipment, driving industrial upgrading through technological innovation and supplying globally competitive turnkey solutions to clients worldwide. We firmly believe that our proprietary "Xin" craftsmanship secures not only immediate advantages but also a prosperous future — an intelligent, efficient and greener new era for modern agriculture.