Centrifugal spray dryer structure and system requirements

The structure of centrifugal spray dryer and the system requirements

Spray dryer is a device that can complete drying and granulation at the same time. According to the process requirements can be adjusted liquid pump pressure, flow, the size of the spray hole, to get the required proportion of a certain size of the spherical particles.

Centrifugal spray dryer ---- structure as well as system requirements

1, for the vertical cylinder, the lower cone seal, the upper flat cover structure; straight section, the cone needs to be according to the air-cooled jacket design, jacket clearance according to the industry standard implementation, the material in the tower side wall (inside) does not stay not coking.

2、Dryer structure is vertical cylinder, lower cone seal, on the flat cover structure; straight section, cone need to be designed according to the air-cooled jacket, jacket clearance according to industry standards, the material in the tower side wall (inside) does not stay not coking.

3、Dryer structure is vertical cylinder, lower cone seal, on the flat cover structure; straight section, cone need to be designed according to the air-cooled jacket, jacket clearance according to industry standards, the material in the tower side wall (inside) does not stay not coking.

4, after steam heating and electric heating compensation for heating the hot air must be purified through the middle and high efficiency three-stage filtration, the air duct should be made of stainless steel SUS304 material.

5, high-speed centrifugal atomization system needs to use frequency conversion speed control, mechanical transmission structure. The nozzle system must be equipped with a cooling device.

6, the need for power: AC380 ± 5% V, three-phase five-wire, 50Hz; the need for compressed air: 0.3 ~ 0.5Mpa; the need for industrial steam: 0.3 ~ 0.5Mpa; the need for drinking water, purified water.

7、Cold air is filtered - heated - blower - feed pump - atomizer - into the tower - cyclone separation - induced draft - water film dust removal - emptying.

8、Material liquid conveying-High speed centrifugal atomization-Hot air drying in the drying tower-Discharging-Dehumidifying and cooling-Collecting.

Centrifugal spray dryer ---- air filter:

1, the air inlet should have a stainless steel filter to prevent the entry of foreign objects and insects, easy to dismantle and wash.

2, 1 set of primary air filter, 80 mesh, metal mesh, easy to disassemble and clean.

3. 1 set of medium-efficiency air filter, 150 mesh, non-woven fabric, easy to disassemble and clean.

4、1 set of sub-efficient air filter, high temperature resistant type, microfiber, easy to disassemble and replace.

Centrifugal spray dryer ---- air supply and heating system:

1, blower and induced draft fan should be adjustable.

2, steam heat exchanger, stainless steel material, stainless steel fins.

3, auxiliary electric heating: choose durable heating element, the structure should be simple, easy to replace the heating element; hot air inlet temperature ≤ 200 ℃ during production.

4, air supply pipe: material SUS304, wall thickness ≥ 1.5mm, internal and external polishing, easy to clean.

Centrifugal spray dryer ---- liquid delivery and atomization system:

1, choose high quality delivery pump suitable for multi-media, simple structure, easy to clean.

2、Select durable, simple structural parts, easy to maintain the atomizer system.

3、Feeding and atomizing system should be equipped with frequency converter, the system can be adjusted at any time.

4, the feed pipe diameter should be matched with the liquid delivery and atomization system, try to use quick connection, easy to clean when the withdrawal of cleaning.

Centrifugal spray dryer ---- main tower:

1, the hot air distribution system is made of SUS304, the wall thickness should be ≥ 2mm.

2, the main tower cold air jacket material Q235 ≥ 3mm; inner liner material SUS304 ≥ 3mm, the skeleton material Q235.

3, the bracket, platforms, guardrails, handrails, etc. SUS304.

4, gas vibration device: 90 #, SUS304.

Centrifugal spray dryer ---- exhaust system:

1, the exhaust pipe is quick-open type, need to be equipped with supporting, material SUS304, wall thickness should be ≥ 2mm.

2, the first level of cyclone separator material SUS304 (including: shut-off), the diameter of the standard (recommended 800mm), the wall thickness should be ≥ 2mm.

3, the second level of cyclone separator material SUS304 (including: shut-off), the diameter of the standard ( Recommended 800mm), wall thickness should be ≥ 2mm.

4, to have the ability to collect material at the bottom of the tower, to prevent the dry material from clumping when the material has a high sugar content.

5, exhaust fan material Q235, with shock absorber 4.

6, all and material direct contact with the inner surface of the metal parts polished, welded after passivation treatment. The outer surface of the equipment is brushed stainless steel color, non-abrasive polished into a mirror Ra ≤ 0.8um, the weld is required to be polished into a uniform width.

7、Detachable parts should be easy to disassemble and clean, and with sanitary quick connect card.