CN201366334Y - Freeze drying granulation device - Google Patents

Abstract

The utility model discloses a freeze drying prilling granulator mainly includes the spray tower, the cyclone that links to each other with the spray tower bottom is connected to the air exhauster of the bottom of spray tower through cyclone, two high-pressure pump levels that are used for carrying material to the top of the tower set up in the top of spray tower and two shower nozzles that link to each other with one of them of high-pressure pump respectively to and the exhaust fan that links to each other through exhaust pipe and spray tower's top. The utility model discloses only need add a shower nozzle at traditional spraying tower mid-level to add exhaust fan and forced draught blower respectively at the top and the middle part of spraying tower, can carry out dual freezing to low melting point liquid form material, not only off-the-shelf output can obtain increase by a wide margin, and off-the-shelf treatment effect is better moreover.

Description

Freeze drying granulation device

technical field

The utility model relates to a granulation device, in particular to a freeze-drying granulation device with low cost and which can increase the output of finished products.

Background technique

At present, there is a wide demand for drying liquid materials into powdery final products in various industries. For this reason, many drying processes have been invented, which are suitable for drying products with different temperatures, pH, purity, and flammability. Among them, spray The tower drying process has the advantages of continuous production, fast drying speed, easy collection of products, and small dust. The working principle of the existing refrigerated spray tower is: the liquid material is transported to the nozzle by the high-pressure pump first, and then sprayed out in the form of mist by the nozzle, and then the refrigerated air that has been pre-cooled is sent from the top of the spray tower by the blower. In the spray tower, the mist material is cooled. After cooling, the mist material hardens to form powder particles, which are collected and packaged at the bottom of the spray tower to become the finished product.

However, in the traditional freeze-spray pulverization technology, generally only one nozzle is arranged in the spray tower. Moreover, the greater the output requirement of the finished product and the smaller the particle size requirement of the finished product, the greater the volume requirement of the spray tower. Therefore, if it is necessary to increase the output of finished products, the usual practice is to increase the diameter and height of the spray tower, and also increase the corresponding supporting system, which greatly increases the granulation cost of materials.

Utility model content

In view of the above-mentioned technical problems, the purpose of this utility model is to overcome the deficiencies and defects of the prior art, and provide a freeze-drying and granulating device that can increase the output of finished products without greatly increasing the investment cost of the equipment.

The above-mentioned purpose of the utility model is achieved by adopting such technical scheme:

A freeze-drying and granulating device at least includes a spray tower, a cyclone separator connected to the bottom of the spray tower, and an exhaust fan connected to the bottom of the spray tower through the cyclone separator. In addition, the freeze-drying and granulating device also includes: two high-pressure pumps for transporting materials to the top of the tower, two spray heads arranged horizontally on the top of the spray tower and respectively connected to one of the high-pressure pumps, and The air duct is an exhaust fan connected to the top of the spray tower.

In another preferred embodiment of the present utility model, the freeze-drying and granulating device further includes a blower connected to the middle of the spray tower through a freezing air pipe.

Compared with the prior art, the utility model has the following advantages:

1. In the utility model, since two nozzles are arranged horizontally on the top of the spray tower, the output of finished products can be increased; and an exhaust fan is connected to the top of the spray tower, so it can not only discharge most of the nozzles from the nozzles The heat of the ejected material can also slow down the settling speed of the material in the tower, so that the effect of material granulation is better;

2. In the utility model, the central part of the spray tower is connected with a blower through a refrigerated air pipe, and the refrigerated air can re-cool the materials falling to the central part of the spray tower.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a granulation device according to a specific embodiment of the present invention.

Detailed ways

In order to illustrate the technical content and structural features of the present utility model in detail, the following will describe in detail in conjunction with specific embodiments and accompanying drawings.

Fig. 1 shows a schematic diagram of the overall structure of a granulation device according to a specific embodiment of the present invention. The freeze-drying and granulating device at least includes a spray tower 12, a cyclone separator 13 connected to the bottom of the spray tower 12, and an exhaust fan 14, wherein the exhaust fan 14 is connected to the bottom of the spray tower 12 through the cyclone separator 13. The freeze-drying and granulating device device further includes: two high-pressure pumps 11 for transporting materials to the top of the tower, two horizontally arranged on the top of the spray tower 12, and respectively connected to one of the high-pressure pumps 11 The spray head 121 that is connected, and the exhaust fan 15 that is connected with the top of the spray tower 12 through the exhaust pipe 151 .

In addition, as shown in FIG. 1 , the freeze-drying and granulating device further includes a blower 16 connected to the middle of the spray tower 12 through a freezing air pipe 161 .

The working principle of the freeze-drying granulation device is as follows:

First, the liquid material with a low melting point at a temperature of about 100°C is transported to the top of the tower by two high-pressure pumps, and then the material is sprayed out from two horizontally arranged nozzles in the form of mist by the gravity of the material itself and the pressure of the nozzles. into the spray tower. At this time, most of the heat of the material will be discharged out of the tower through the exhaust fan on the top of the tower, which can reduce the temperature of the material to about 40°C. When the material continues to descend to the middle of the tower, the material is further cooled by the refrigerated air sent from the middle, and the hot air after heat exchange can be sucked away by the exhaust fan at the lower part of the spray tower and discharged out of the tower, and the powdery material is finally discharged from the spray tower Discharge from the discharge port at the bottom.

The utility model only needs to add a nozzle horizontally in the traditional spray tower, and add an exhaust fan and a blower to the top and middle of the spray tower respectively, so that the low melting point liquid material can be subjected to double freezing treatment, not only the output of the finished product can be reduced It has been greatly increased, and the processing effect of the finished product is better.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the implementation scope of the present utility model; all equivalent changes and modifications made according to the present utility model are covered by the patent scope of the present utility model.

Claims (2)

1. freeze drying prilling granulator, comprise: spray tower (12), the cyclone separator (13) that links to each other with spray tower (12) bottom, be connected to the air exhauster (14) of the bottom of described spray tower (12) by cyclone separator (13), it is characterized in that described prilling granulator further comprises: two high-pressure pumps (11) that are used for convey materials to cat head; Be horizontally placed on the top of described spray tower (12), and respectively with one of them two shower nozzle (121) that link to each other of described high-pressure pump (11); And the exhaust blower (15) that links to each other with the top of described spray tower (12) by exhaust duct (151).

2. freeze drying prilling granulator according to claim 1 is characterized in that, described prilling granulator also comprises: the pressure fan (16) that is connected to described spray tower (12) middle part by freezing airduct (161).

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