Circulating Grain Drying Tower Circulating Drying Low-Temperature Quality Preservation High Efficiency Energy Saving

Company Profile

Founded in 1998 and headquartered in Zhengzhou, Henan Province, China, Zhengzhou Wangu Machinery Co., Ltd. is a state-level High-Tech Enterprise integrating R&D, design, manufacturing, and sales. With over two decades of expertise in grain drying engineering, the company holds multiple provincial and ministerial-level agricultural machinery promotion certificates. Our products have been exported to Southeast Asia, Africa, South America, the Middle East, and many other regions, earning the trust of customers worldwide.

Product Overview

The Recirculating Grain Dryer is a highly efficient small-scale drying equipment developed by Wangu Machinery based on our proven continuous grain dryer technology. By recirculating grain through multiple drying cycles, this equipment effectively solves the industry challenge where small dryers fail to process high-moisture raw grain due to insufficient single-pass drying time. Equipped with an online grain moisture sensor at the discharge outlet, the dryer monitors moisture content in real time and automatically discharges grain once it reaches the target safe moisture level, achieving full intelligent automation.

Application Scenarios

1,Grain storage purchasing enterprises – rapid post-harvest moisture reduction for high-moisture grain to ensure safe storage.

2,Agricultural cooperatives large grain growers – large-scale grain drying treatment.

3,Seed companies – safe seed drying to guarantee germination rate.

4,Feed processing enterprises – moisture control of feed raw materials.

5,Grain oil processing plants – pretreatment drying of raw grain.

Working Principle

Circulating Dryer Process Flow:

Wet grain feeding → Grain equalizing buffer section → Drying section
↓
Circulating conveying system ← Grain discharge detection
↓
Grain discharge detection-Cooling section → Finished grain discharging

Key Features & Advantages

1. Circulating Uniform Drying – Grain is dried in multiple cycles for even heating, avoiding local over‑drying or under‑drying

2. High‑efficiency Heat Exchange – Multi‑layer angular box structure with high thermal efficiency

3. Intelligent Control – PLC + touch screen + online moisture detection, auto/manual dual modes, one‑key start‑stop

4. Low Breakage Rate – Six‑impeller grain discharge design, increased breakage rate <0.5%

5. Clean & Pollution‑free – Indirect heating, flue gas fully isolated from grain, safe and hygienic dried grain

6. Comprehensive Safety Protection – Three‑stage level control, over‑temperature alarm, emergency grain outlet, anti‑clogging device

Quality Assurance Certifications

1. Certified by ISO 9001 Quality Management System

2. More than ten product specifications have obtained provincial and ministerial agricultural machinery promotion appraisal certificates

3. Products comply with Chinese national standard GB/T 16714 Safety Requirements for Grain Dryers

4. 12‑month warranty for the whole machine; lifelong technical support and spare parts supply available

 ZHENGZHOU WANGU MACHINERY CO.,LTD

 Our company is founded in 1998 who specializes in the design and manufacture of various drying equipment and has   obtained a number of patents in professional drying field.Main products include grain dryers such as corn dryer, paddy   dryer,rapeseed dryer, and other dryers like tube bundle dryer,fruit residue dryer, rotary dryer, etc..

 The company has 416 employees, among them, there are 63 senior engineers.As the national standard drafter of grain   dryer  in China, our grain dryers are not only in the leading position in the grain drying industry, but also have strong   competitive strength in the world.We have established long-term stable cooperative partnership with many well-known   enterprises, such as Sinograin,COFCO, Wilmar, Heilongjiang Beidahuang Agriculture Co. Ltd., Jiusan Groupetc., with an   annual sale of more than200 sets of equipment.

Our main products are drying line of grians and oil crops(50-2000t/day):available to drycorn,wheat,paddy,soybean and ra pe seed etc,complete drying engineering of apple pomace,citrus pulp and other pomace（1-15tons/day),storehouse cassava dry ing line(100-400ton/day),complete drying engineering of alcohol lees,distilled spirits lees and brewer's spent grain(1-12 tons/day). tower grain dryer of different types,cylinder dryer of different specification for pomace, tube bundle and tube sheet dryer:10-60tons/day,coal-burning hot air furnace,rice hull hot air furnace, straw hot air furnace and marsh gas hot air furnace 0.35-11.2MW(300,000-9600,000kcal/h), grain delivery and cleaning machinery:bucket elevator,belt conveyor,screw conveyor and cleaning sieve.

Pre-sale services:

1. provide professional technical support;

2. send the product catalog and instruction manual;

3. personal call or visit is warmly welcome

Sale of services:

1. we promise honesty and enthusiasm, it’s our pleasure to serve you as you purchasing consultant.

2. We guarantee punctuality, quality and quantities strictly implement the terms of contract

3. We send engineers to install in your factory and train your works until they totally get all skills

After-sale service:

1. One year warranty and life long maintenance

2. 24 hours telephone service online

3. A large stock of components and parts, easily-worn parts.