The heat pump type box type low-temperature sludge drying equipment consists of a heat pump condensation and dehumidification component and a sludge drying hopper. The heat pump condensation and dehumidification component includes a compressor, condenser, expansion valve, evaporator, heat exchanger, storage tank, drying filter, electric heating, etc.

Principle of heat pump type box type low-temperature sludge drying equipment

When the equipment is running, the air in the drying room is in a closed cycle. The air inside the drying room penetrates the sludge hopper and flows through the sludge. The moisture evaporated from the sludge increases the humidity of the air inside the drying box. The humid air flows through the evaporator of the heat pump, cools down, and discharges condensed water. The refrigerant releases the heat energy of the humid air it previously absorbed in the evaporator at the condenser, heats and dehumidifies the air, and the hot air flowing out of the condenser returns to the heat pump sludge drying room to continue drying the sludge. When the sludge drying room reaches the predetermined temperature, the external air condenser works to remove excess heat from the drying room and prevent the temperature inside the drying room from continuing to rise. When drying with a dehumidification heat pump, the air circulates in a closed loop between the drying chamber and the dehumidification dryer (without emitting any exhaust gas).

Drying temperature: 45~50 ℃ (return air)/60~80 ° C (supply air)

Wet mud usage range: 40% -82% (adaptability varies depending on moisture content)

Dry material moisture content: Variable frequency adjustment, moisture content (10% -40%) (the adjustment range of dry material moisture content varies depending on the moisture content of the sludge)

Note:

Data source: Company laboratory data and actual customer usage data. The data may vary depending on the specific usage environment. The images, parameters, and data involved are for selection reference only. The actual ordered products shall prevail.

Characteristics of heat pump type box type low-temperature sludge drying equipment

The HP series heat pump box type sludge dryer has the characteristics of beautiful appearance, low noise, and automatic operation, making it the perfect equipment for low-temperature drying and reduction of various types of sludge.

1) The compressor is the "heart" of the unit, and the internationally renowned fully enclosed scroll compressor is selected. Compared with traditional reciprocating compressors, it has the characteristics of smoothness, efficiency, low noise, resistance to liquid impact, and long service life.

2) The finned heat exchanger is an important part of dehumidification and reheating, using internally threaded copper tubes and aluminum finned coils. Copper pipes are connected to aluminum sheets by mechanical expansion, and are arranged in a staggered manner to provide high heat transfer performance. Aluminum fins with hydrophilic aluminum foil to prevent corrosion. The end plate is made of stainless steel to achieve the purpose of corrosion prevention.

3) Adopt a sludge specific air supply fan. The fan in the air duct is treated with anti-corrosion to ensure that the accessories of the air duct are protected from corrosion and the service life of the equipment is longer. The motor adopts a high-temperature resistant motor, which ensures better product performance and quality.

4) Adopting an integrated design, it can facilitate installation and transportation.

5) The unit adopts a design of spraying liquid to reduce the exhaust temperature, ensuring that the compressor will not operate beyond the working conditions at high condensation temperatures.

6) The equipment adopts a box type aluminum alloy frame structure, and the inner and outer panels of the air duct are made of stainless steel plates, embedded with polyurethane foam material with excellent thermal insulation performance. The base is made of channel steel. It has the characteristics of sturdiness, high airtightness, sound insulation, heat insulation, anti cold bridge, and good anti-corrosion effect.

7) There is a detachable medium efficiency filter installed on the return air side for easy disassembly and cleaning.

Technical parameters of heat pump type box type low-temperature sludge drying equipment

Material loading and unloading process of heat pump type box type low-temperature sludge drying equipment

Note:

Data source: Company laboratory data and actual customer usage data. The data may vary depending on the specific usage environment. The images, parameters, and data involved are for selection reference only. The actual ordered products shall prevail.