Description
Key words: gypsum drying project, gypsum drying equipment, gypsum drying machine
Classification: chemical engineering industry
Case overview: according to experience of Haomai drying, the gypsum with 25% water content is extruded into strips by the squeezer, and then dried by the mesh belt dryer with higher evaporation intensity. Combined with practical experience and considering certain allowance, a dw3-2x16 belt dryer (with a total area of 96m2) is selected
Material name: Gypsum
Evaporation capacity: 1333kg / h
Initial moisture content of gypsum: ～ 25%
Final moisture of anhydrite: with 1 crystal water
Yield: 4000kg / h
Type of drying system: open system
Drying medium: boiler tail gas
Drying method: hot air drying
Material supply mode: extruding machine cloth
Operating temperature: inlet air temperature 200 ℃, exhaust air temperature 70 ℃
Heat source: boiler flue gas
Receiving mode: main machine blanking
Selection of drying equipment
According to our experience, the gypsum with 25% water content is extruded into strips by the extruder, and then dried by the mesh belt dryer with higher evaporation intensity. Combined with practical experience and considering certain allowance, we select a dw3-2x16 belt dryer (the total area of mesh belt is 96m2), the heating mode is boiler tail gas heating, and the equipment operation mode is continuous drying operation.
Main specification of gypsum drying equipment
(1) Equipment name: dw3-2 × 16 three-layer belt dryer;The equipment includes: feeding section, transmission device, hot air (circulation) system, mesh belt, main engine shell (support), tail gas dehumidification system and electric control cabinet; its main design features are: the whole system is divided into 8 relatively independent drying units, the temperature setting is automatically controlled, the drying is uniform, and the thermal efficiency is high; in view of the strip sludge must be continuously dried and the surface heated evenly The hot air circulation adopts the way of penetrating circulation to ensure the drying quality. the equipment is made of stainless steel 304 at the material contact to ensure the continuous and stable operation of the equipment; each circulation unit is designed with quick opening cleaning door to facilitate regular cleaning and maintenance; the wet tail gas is discharged reasonably.
(2) Technical features
1. In the drying process, hot air passes through the material from bottom to top or from top to bottom, which increases the contact area between the material and hot air and increases the drying rate.
2. The material of the whole equipment is made of stainless steel and carbon steel. The bottom of the inner cavity is fully welded and the fillet is excessive, so that the belt conveyor has no wind channeling phenomenon with the outside in the working state, and it can ensure that the equipment is easy to clean and there is no water accumulation inside the equipment, which ensures the cleanliness of the articles dried each time.
3. The fully enclosed structure is adopted. In addition to the air inlet pipe and the moisture exhaust pipe, there is no additional external air duct, so as to ensure that the materials are not polluted, improve the thermal efficiency and improve the working conditions.
Classification: chemical engineering industry
Case overview: according to experience of Haomai drying, the gypsum with 25% water content is extruded into strips by the squeezer, and then dried by the mesh belt dryer with higher evaporation intensity. Combined with practical experience and considering certain allowance, a dw3-2x16 belt dryer (with a total area of 96m2) is selected
Material name: Gypsum
Evaporation capacity: 1333kg / h
Initial moisture content of gypsum: ～ 25%
Final moisture of anhydrite: with 1 crystal water
Yield: 4000kg / h
Type of drying system: open system
Drying medium: boiler tail gas
Drying method: hot air drying
Material supply mode: extruding machine cloth
Operating temperature: inlet air temperature 200 ℃, exhaust air temperature 70 ℃
Heat source: boiler flue gas
Receiving mode: main machine blanking
Selection of drying equipment
According to our experience, the gypsum with 25% water content is extruded into strips by the extruder, and then dried by the mesh belt dryer with higher evaporation intensity. Combined with practical experience and considering certain allowance, we select a dw3-2x16 belt dryer (the total area of mesh belt is 96m2), the heating mode is boiler tail gas heating, and the equipment operation mode is continuous drying operation.
Main specification of gypsum drying equipment
(1) Equipment name: dw3-2 × 16 three-layer belt dryer;The equipment includes: feeding section, transmission device, hot air (circulation) system, mesh belt, main engine shell (support), tail gas dehumidification system and electric control cabinet; its main design features are: the whole system is divided into 8 relatively independent drying units, the temperature setting is automatically controlled, the drying is uniform, and the thermal efficiency is high; in view of the strip sludge must be continuously dried and the surface heated evenly The hot air circulation adopts the way of penetrating circulation to ensure the drying quality. the equipment is made of stainless steel 304 at the material contact to ensure the continuous and stable operation of the equipment; each circulation unit is designed with quick opening cleaning door to facilitate regular cleaning and maintenance; the wet tail gas is discharged reasonably.
(2) Technical features
1. In the drying process, hot air passes through the material from bottom to top or from top to bottom, which increases the contact area between the material and hot air and increases the drying rate.
2. The material of the whole equipment is made of stainless steel and carbon steel. The bottom of the inner cavity is fully welded and the fillet is excessive, so that the belt conveyor has no wind channeling phenomenon with the outside in the working state, and it can ensure that the equipment is easy to clean and there is no water accumulation inside the equipment, which ensures the cleanliness of the articles dried each time.
3. The fully enclosed structure is adopted. In addition to the air inlet pipe and the moisture exhaust pipe, there is no additional external air duct, so as to ensure that the materials are not polluted, improve the thermal efficiency and improve the working conditions.
