Heat Transfer Area 29M2 Textile Sludge Hollow Paddle Dryer

Paddle dryer is a kind of low-speed agitated dryer with agitated pulp inside the equipment to make the wet materials fully contact with heat carrier and hot surface under the stirring of paddles, so as to achieve the purpose of drying. The structure is generally horizontal, double axis or four axis. The paddle dryer is divided into hot air type and conduction type. The hot air type is through the heat carrier (such as hot air) and the material to be dried contact and drying.

Product Working Principle

Wedge shaped hollow blades are densely arranged on the hollow shaft, and the hot medium flows through the hollow shaft. The heat transfer area per unit effective volume is very large. The temperature of hot medium ranges from - 40 ℃ to 320 ℃, which can be steam or liquid type, such as hot water, heat transfer oil, etc. Indirect conduction heating, without carrying air to take away heat, heat is used to heat materials. The heat loss is only the heat dissipation to the environment through the insulation layer. The heat transfer surface of wedge blade has self-cleaning function. The relative movement of material particles and the wedge-shaped surface produces a washing effect, which can wash off the attached materials on the wedge-shaped surface, and keep a clean heat-transfer surface during operation. The shell of the pulp dryer is Ω type, and two to four hollow mixing shafts are arranged in the shell. The shell has a sealed end cover and an upper cover to prevent the leakage of material dust.

The heat transfer medium flows through the shell jacket and the hollow mixing shaft through the rotary joint. The hollow mixing shaft has different internal structure according to the type of hot medium, so as to ensure better heat transfer effect.

Product Feature

1. The dryer is very compact and small installation area is needed. Most the heating area is from paddles which can make the dryer structure very compact.

2. Heat efficiency is higher than 80%. The indirect heating design considerably reduce heat loss.

3. The drying temperature can be separately controlled to fit different drying stages.

4. Paddle dryer has high flexibility for wide moisture range. The residence time of wet material inside the drying chambers adjustable from minutes to hours by changing the shafts rotation speed and adding the overflow plate.

Technical Advantage

1) High thermal efficiency which can reach 95%

2) Heat transfer medium does not contact the product.

3) Gas is not used to convey the product. Off-gas flow is minimal.

4) Precise control of temperature

5) Uniform product quality, through mixing and movement of the product

6) Continuous process on a once-through basis

7) High heat transfer area to process volume ratio - reduced floor space

8) Easy to operate, requires minimal attention

9) Safer than direct drying when processing combustible material

10) Simple durable design for easy and low maintenance

11) Dual counter-rotating shafts with unique intermeshing discs produce intimate mixing, uniform heat transfer, a high heat transfer rate, and a self-cleaning effect.A large heat transfer area to volume ratio is achieved by the use of hollow discs and a jacketed vessel, through which the heating medium flows. The result is a compact machine with less space requirements and lower installation cost.

Product Application

• The materials from such as the medicine t food , chemical industry, etc. can be dried.

• Suitable for pulpiness, paste-like mixture or power raw material.

• Temperature sensing material requiring the low temperature to be dried.

• Raw materials that are easy to oxidize or explode and have strong irritative or toxic.

• Demand to retrieve of the organic solvent.

Technical Parameters

Model	HPD-3	HPD-9	HPD-13	HPD-18	HPD-29	HPD-41	HPD-52	HPD-68	HPD-81	HPD-95	HPD-110	HPD-125	HPD-140
Heat transfer area(m2)	3	9	13	18	29	41	52	68	81	95	110	125	140
Effective volume(m3)	0.06	0.32	0.59	1.09	1.85	2.8	3.96	5.21	6.43	8.08	9.46	10.75	12.18
Speed range(rpm)	5-20	5-20	5-20	5-20	5-20	5-10	5-10	5-10	5-10	1-8	1-8	1-8	1-8
Transmission power(kw)	2.2	4	5.5	7.5	11	18.5	30	37	45	55	75	90	110
Device width(m)	306	584	762	940	1118	1296	1474	1655	1828	2032	2210	2480	2610
Overall width(m)	736	841	1066	1320	1474	1676	1854	2134	2186	2438	2668	2732	2935
Equipment length(m)	1956	2820	3048	3328	4114	4724	5258	5842	6020	6124	6850	7500	7860
Total length(m)	2972	4876	5486	5918	6808	7570	8306	9296	9678	9704	10300	11800	12900
Center height(m)	380	450	534	610	762	915	1066	1220	1430	1560	1650	1760	1856
Total Equipment height(m)	762	838	1092	1270	1524	1778	2032	2362	2464	2566	2668	2769	2838

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Jiangsu Guojin Drying Technology Co.,Ltd. specializes in the research and development and manufacture of drying, mixing, granulating, crushing, conveying, screening and other equipment. It has now become a large-scale enterprise in the drying equipment industry and a designated production enterprise of China Chemical Equipment Corporation. Especially, it has unique advantages in mesh belt type, hollow blade, disc type, rake type, fluidized bed, flash evaporation, airflow, spray, vacuum drying equipment, calcination, etc. Widely used in chemical, pharmaceutical, food, environmental protection, building materials, electronics, feed and other industries. Tens of thousands of users are spread all over the country and sold to more than then countries.

The company is located in Sanhekou Development Zone, Tianning District, Changzhou City, the birthplace of China's drying equipment industry. It is adjacent to Beijing-Shanghai Expressway, Shanghai-Nanjing Railway and Hengshan Crossing of Shanghai-Nanjing Expressway, 5km away from Shanghai in the east, Wuxi and Suzhou in the south, and the Yangtze River in the north.

The company has complete processing equipment. There are several sets of manufacturing equipment such as lifting, welding and cutting. It has excellent product development environment and production environment. The company has adopted advanced management methods and established a perfect quality assurance system.

Our company has established a set of perfect after-sales service system, which tracks and monitors all ex-factory products and the users are satisfied. "work with great care and keep improving" is the company's requirement for emplyees. Facing the increasingly standardized domestic and foreign markets, the company adheres to the corporate philosophy of "open competition, cooperative innovation, balance of interests and common development" and faces up to challenges with the belief of winning.