CN204268857U - A kind of flash dryer - Google Patents

Abstract

The utility model relates to a flash drying machine, which comprises an air filter, a blower, a heat exchanger, a feeder, a drying host, a cyclone separator, a bag dust collector and an induced draft fan. The filter is connected; the air outlet of the blower is connected with the air inlet of the heat exchanger; the air outlet of the heat exchanger is connected with the air inlet of the drying host; the feed inlet of the drying host is connected with The feeder is connected, the discharge port of the drying host is connected with the feed port of the cyclone separator; the air outlet of the cyclone separator is connected with the air inlet of the bag filter; the bag filter The air outlet is connected to the induced draft fan, and an incubator is arranged outside the heat exchanger. In the flash drying machine provided by the utility model, an insulation layer and an insulation box are installed on the outside of the heat exchanger, so that the temperature of the air passing through the heat exchanger can be raised faster, and the burns of workers can also be avoided.

Description

A flash dryer

technical field

The utility model relates to the technical field of microorganism production equipment, in particular to a flash drying machine.

Background technique

In our microbial production process, the semi-finished product formed by the bacterial liquid and the carrier is dried by a flash dryer. Since microorganisms are sensitive to temperature, the heat must be sufficient in the process of drying the semi-finished product. Generally, the steam pressure is between 0.4 and 0.6 MP, the air inlet temperature is above 140 degrees, the semi-finished product stays in the drying chamber for about 6-10 seconds, the semi-finished product is dried instantly and the finished product is discharged through the cyclone separator.

In winter, due to the low outside temperature, the heat exchanger dissipates heat outwards, and it takes a long time for the inlet air temperature to reach 140 degrees, resulting in a serious waste of heat source. In addition, since the heat exchanger dissipates heat outward, the temperature of the outer wall is relatively high, which easily causes burns to workers.

Utility model content

In view of this, the purpose of the utility model is to provide a flash dryer to solve the technical problems in the prior art.

The flash drying machine provided by the utility model includes an air filter, a blower, a heat exchanger, a feeder, a drying host, a cyclone separator, a bag filter and an induced draft fan, and the air inlet of the blower is connected to the air filter. The air outlet of the blower is connected with the air inlet of the heat exchanger; the air outlet of the heat exchanger is connected with the air inlet of the drying host; the feed inlet of the drying host is connected with the air inlet of the drying host The feeder is connected, the discharge port of the drying host is connected with the feed port of the cyclone separator; The air inlet of the bag filter is connected, the discharge port of the bag filter is connected to the receiving container; the air outlet of the bag filter is connected to the induced draft fan, and an incubator is arranged outside the heat exchanger.

Preferably, the incubator includes an insulation layer and an incubator shell.

Preferably, the insulation layer covers the entire outer wall of the heat exchanger.

The flash drying machine provided by the utility model is equipped with an insulation layer and an insulation box on the outside of the heat exchanger, which reduces the heat dissipation of the heat exchanger, makes the air passing through the heat exchanger heat up faster, and has a higher heat source utilization rate , and can also prevent workers from being scalded.

Description of drawings

Through the following description of the embodiments of the utility model with reference to the accompanying drawings, the above-mentioned and other purposes, features and advantages of the utility model will be more clear, in the accompanying drawings:

Fig. 1 is the schematic diagram of the flash drying machine of the present invention.

Detailed ways

Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

As shown in Figure 1, the flash dryer provided by the utility model includes an air filter 1, a blower 2, a heat exchanger 3, an incubator 4, a feeder 5, a drying host 6, a cyclone separator 7, and a bag filter 8 and induced draft fan 9, the air inlet of described air blower 2 is connected with described air filter 1; The air outlet of described air blower 2 is connected with the air inlet of described heat exchanger 3; The air inlet of described heat exchanger 3 The air outlet is connected with the air inlet of the drying main frame 6; the feed port of the drying main frame 6 is connected with the feeder 5, and the discharge port of the drying main frame 6 is connected with the feed of the cyclone separator 7. port connection; the discharge port of the cyclone separator 7 is connected to the receiving container (not shown in the figure), the air outlet of the cyclone separator 7 is connected with the air inlet of the bag filter 8, and the bag dust collector The discharge port of device 8 is connected with receiving container (not shown in the figure); The air outlet of described bag filter 8 is connected with described induced draft fan 9.

The insulated box 4 is provided outside the heat exchanger 3, and the insulated box 4 includes an insulating layer 41 and an insulated box shell (not shown in the figure). The insulation layer 41 is arranged on the outside of the heat exchanger 3 and completely covers the outer wall of the heat exchanger 3. The material of the insulation layer 41 is a material with poor thermal conductivity. Preferably, the insulation layer 41 is a rock wool board. The insulation box shell completely covers the insulation layer 41 . Preferably, the insulation box shell is made of scrap metal sheets, or other similar waste materials.

The working process of the utility model flash dryer is:

The air is sucked by the blower 2 through the air filter 1, and passed into the heat exchanger 3, the air is heated by the heat exchanger 3, and then passed into the drying host 6, and the heat is exchanged. After the temperature of the gas flowing out of the gas outlet of the device 3 reaches the required temperature, semi-finished materials are added to the drying host 6 through the feeder 5. Preferably, the required gas temperature is 140 degrees. Semi-finished materials are dried into finished materials through heat exchange with hot air in the drying host 6, and the finished materials in the drying host 6 enter the cyclone separator 7 through the discharge port of the drying host 6. In the cyclone separator 7, the finished material falls into the bottom of the cyclone separator 7, and falls into the receiving container through the discharge port. The induced draft fan 9 sucks the material dust in the cyclone separator 7 into the bag filter 8 through the air outlet of the cyclone separator 7 . The material dust entering the bag filter 8 is absorbed by the dust removal device in the bag filter, and a small amount of finished material carried in the dust falls into the bottom of the bag filter 8 and passes through the bag filter 8 The discharge port at the bottom falls into the material collection container. The air that has been dedusted in the bag filter 8 is discharged to the outside through the induced draft fan 9 .

Finally, it should be noted that obviously, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation manner. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (3)

1. a flash dryer, is characterized in that, comprises air cleaner, air blast, heat exchanger, feeder, main drying, cyclone separator, sack cleaner and air-introduced machine, and the air inlet of described air blast is connected with described air cleaner; The gas outlet of described air blast is connected with the air inlet of described heat exchanger; The gas outlet of described heat exchanger is connected with the air inlet of described main drying; The charging aperture of described main drying is connected with described feeder, and the discharging opening of described main drying is connected with the charging aperture of described cyclone separator; The discharging opening of described cyclone separator connects rewinding container, and the air outlet of described cyclone separator is connected with the air inlet of described sack cleaner, and the discharging opening of described sack cleaner connects rewinding container; The air outlet of described sack cleaner is connected with described air-introduced machine, and the arranged outside of described heat exchanger has incubator.

2. flash dryer according to claim 1, is characterized in that, described incubator comprises heat-insulation layer and incubator housing.

3. flash dryer according to claim 2, is characterized in that, described heat-insulation layer covers the whole outer wall of described heat exchanger.