Talk about solutions to common failures of boiling dryers

A boiling dryer is a device
that can complete drying and granulation at the same time.

According to the process requirements, the pressure, flow rate and size of the nozzle can be adjusted to obtain the required spherical particles
in a certain proportion of size.

The liquid material is sprayed into a mist with special equipment so that it is dried
in contact with hot air.

It is used to dry some heat-sensitive liquids, suspensions and viscous liquids such as milk, eggs, tannins and pharmaceuticals
.

It is also used for drying fuels, intermediates, soap powders and inorganic salts
.

Boiling dryer is mainly suitable for universities, research institutes and food pharmaceutical and chemical enterprises laboratory production of micro-particle powder, for all solutions such as emulsion, suspension has a broad spectrum applicability, suitable for the drying of heat-sensitive substances such as biological products, biological pesticides, enzyme preparations, etc.
, because the sprayed material is only sprayed into a mist-like size particles when the high temperature, so it is only instantaneously heated, can keep these active materials in the drying still maintain its active ingredients
。
It has good uniformity, fluidity and solubility, and the product has high purity and good
quality.

The production process is simplified and the operation control is convenient
.

For liquids with a moisture content of 40-60% (up to 90% of special materials), they can be dried once into a powder product, which does not need to be crushed and screened after drying, reducing the production process and improving the purity of
the product.

For product particle size, bulk density, moisture, within a certain range can be adjusted by changing the operating conditions, control and management are very convenient
.

Solution to common faults of boiling dryer 1.
The dryer is not running - the compressor line is disconnected, the fuse is burned, the heat relay is operated, the high-voltage switch is operated, the compressor is blocked, and the line is virtually connected or loosened
.

2.
The dryer stops in a short period of time after starting - the ambient temperature is too high, the condenser is blocked, the compressor is overloaded, the refrigerant is missing, the low pressure is too low, the intake volume is too large, and the compressor is stuck
.

3.
The compressor does not start - the wiring is incorrect, the voltage is too low, the starting capacitor is damaged, the relay or contactor is not closed, the starting winding is open, and the phase
is missing.

4.
The compressor is repeatedly started and stopped due to overload protection action - low voltage or three-phase imbalance, other electrical equipment is connected to the overload protector, the overload protector fails, the running capacitor is too small, the exhaust pressure is too much, the short circuit between the high windings, and the thermal relay contacts are firmly adhered to
.

5.
Relay burned out - the voltage is too high or too low, the running capacitor is not correct, repeated start and stop (refer to 2 and 3) the relay specifications do not match, the mount is incorrect
.

6.
The capacitor burns out - the specifications do not match, the voltage is too high
.

7.
The exhaust pressure is too high - the refrigeration dose is too much, there is air in the refrigeration system, the condenser is dirty, the ambient temperature is too high, the fan pressure switch is faulty, the fan motor is faulty, the fan rotation direction is incorrect, and the cooling water flow control valve fails
.

8.
The exhaust pressure is too low - the refrigeration dose is too small, and the fan pressure switch fails
.