CN105212017A - A kind of fluidized bed type freezer - Google Patents

Abstract

The invention relates to a food processing device, in particular to a fluidized bed freezer for freezing food. It includes a rectangular parallelepiped casing, with a feed hopper on one end surface of the casing and a discharge hopper on the other end surface. Fans are evenly distributed in the casing along its longitudinal direction, and evaporators are installed in the casing above the air outlet of the fan. It is characterized in that there is a freezing tube in the inner cavity of the shell above the evaporator, and air inlets are evenly distributed on the side wall of the freezing tube. One end of the shaft protrudes outside through the casing, and the end of the central shaft is connected with an output shaft of a motor. The inlet of the discharge hopper is located below the end surface of the freezing cylinder with the central axis, and discharge openings are evenly distributed around the outer edge of the end surface of the freezing cylinder. The flow flower bed freezer is not easy to accumulate when freezing food with a large specific gravity, which can ensure the normal operation of the freezer.

Description

A fluidized bed freezer

technical field

The invention relates to a food processing device, in particular to a fluidized bed freezer for freezing food, especially for green beans, strawberries, shrimps and the like.

Background technique

It is known in the food processing industry that in order to ensure that food does not deteriorate and become corrupt during storage, transportation and sales, food processing companies often freeze the processed products immediately. For some foods that are granular and small in size, such as green beans, strawberries, and shrimps, etc., they are generally frozen by using a fluidized bed freezer.

At present, the fluidized bed freezer used in the industry includes a rectangular parallelepiped shell, which is arranged horizontally. There is a feed hopper on the upper part of one end face, and a discharge hopper on the lower part of the other end face. Fans are evenly distributed longitudinally, and evaporators are arranged in the housing above the air outlet of the fans. There is a partition in the shell above the evaporator, and the periphery of the partition is fixed and sealed with the inner wall of the shell. There are through holes evenly distributed on the partition. above the board. This kind of freezer uses the wind force to move the frozen food from the feed hopper to the discharge hopper. When the food with a large specific gravity is frozen, it is easy to accumulate, which affects the normal operation of the freezer.

Contents of the invention

The technical problem to be solved by the present invention is to provide a fluidized bed freezer, which is not easy to accumulate when freezing food with a large specific gravity, and can ensure the normal operation of the freezer.

In order to solve the above problems, the following technical solutions are provided:

The fluidized bed freezer of the present invention comprises a rectangular parallelepiped shell, which is arranged horizontally, with a feed hopper at the top of one end face and a discharge hopper at the bottom of the other end face, and the inside of the shell is evenly distributed along its longitudinal direction. There is a fan, and an evaporator is arranged in the casing above the air outlet of the fan. It is characterized in that there is a freezing tube arranged longitudinally in the inner cavity of the shell above the evaporator, and air inlets are evenly distributed on the side wall of the freezing tube, and the freezing tube is arranged obliquely, and the height of the end close to the feeding hopper is Higher, the higher end of the freezing cylinder is connected to the outlet of the feed hopper, and they are in a rotating fit. There is a central shaft on the other end of the freezing cylinder, and one end of the central shaft protrudes through the housing, and The end of the central shaft is connected to the output shaft of an electric motor. The inlet of the discharge hopper is located below the end surface of the freezing cylinder with the central axis, and discharge ports are evenly distributed around the outer edge of the end surface of the freezing cylinder.

Adopting the above scheme has the following advantages:

Because there is a freezing cylinder arranged longitudinally in the housing cavity above the evaporator of the fluidized bed freezer of the present invention, the side walls of the freezing cylinder are evenly distributed with air inlets, and the freezing cylinder is arranged obliquely, and it is close to the inlet. The one end of the hopper is higher, and the higher end of the freezing cylinder is connected to the outlet of the feeding hopper, and they are in a rotating fit. There is a central axis on the other end of the freezing cylinder, and one end of the central axis passes through the shell. The body protrudes outside, and the end of the central shaft is connected with the output shaft of a motor. The inlet of the discharge hopper is located below the end face of the freezing cylinder with the central shaft, and there are outlets evenly distributed around the outer edge of the end face of the freezing cylinder. . When in use, first start the motor, fan and evaporator, the motor drives the freezing cylinder to rotate, and the fan blows the cold air generated by the evaporator into the freezing cylinder through the small hole on the side wall of the freezing cylinder; then, the material to be frozen is discharged from the into the feeding hopper, the material enters the freezing cylinder through the feeding hopper; then, the material is frozen by the cold air in the freezing cylinder; after that, the material falls into the discharge hopper through the discharge port; finally, the material is obtained after freezing Discharge from the hopper. Because the freezing cylinder rotates during the working process. Therefore, even if the material with a large specific gravity is frozen, it will not accumulate, thereby ensuring the normal operation of the freezer and improving work efficiency.

Description of drawings

Fig. 1 is the structural representation of fluidized bed freezer of the present invention;

Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Fig. 1 and Fig. 2, the fluidized bed freezer of the present invention comprises a rectangular parallelepiped housing 1, the housing 1 is arranged horizontally, a feed hopper 2 is provided on the top of one end face, and the other end face The lower part of the housing is provided with a hopper 3, and the housing 1 is uniformly distributed with fans 4 along its longitudinal direction, and the housing 1 above the air outlet of the fan 4 is provided with an evaporator 5. In the inner chamber of the housing 1 above the evaporator 5, there is a freezing tube 6 arranged longitudinally along the inner cavity. Air inlets 7 are evenly distributed on the side walls of the freezing tube 6. The freezing tube 6 is arranged obliquely, and it is close to the feed hopper. 2 is higher in height, and the higher end of the freezing cylinder 6 is connected to the outlet of the feed hopper 2, and they cooperate in a rotating shape. The other end of the freezing cylinder 6 is fixed with a central axis 8, and the central axis 8 One end of the central shaft 8 protrudes through the housing 1, and the end of the central shaft 8 is connected with the output shaft of a motor 9. The inlet of the discharge hopper 3 is located below the end face of the freezing cylinder 6 with the central axis 8 , and discharge ports 10 are evenly distributed around the outer edge of the end surface of the freezing cylinder 6 .

When in use, first start the motor 9, the fan 4 and the evaporator 5, the motor 9 drives the freezing cylinder 6 to rotate, and the fan 4 blows the cold air produced by the evaporator 5 into the freezing cylinder 6 through the small hole on the side wall of the freezing cylinder 6 . Next, the material to be frozen is put into the feed hopper 2 , and the material enters into the freezing cylinder 6 through the feed hopper 2 . Then, the material is frozen by the cold air in the freezing cylinder 6. After that, the material falls into the discharge hopper 3 through the discharge port 10 . Finally, the material after freezing is discharged from the discharge hopper 3 .

Claims (1)

1. A fluidized bed freezer, comprising a rectangular parallelepiped housing (1), the housing (1) is arranged horizontally, with a feed hopper (2) on the upper part of one end surface, and a lower part of the other end surface There is a hopper (3), and a fan (4) is evenly distributed in the casing (1) along its longitudinal direction, and an evaporator (5) is installed in the casing (1) above the air outlet of the fan (4); it is characterized in that The inner cavity of the housing (1) above the evaporator (5) has a freezing tube (6) arranged longitudinally along it, and the side walls of the freezing tube (6) are evenly distributed with air inlets (7), and the freezing tube (6) ) is arranged obliquely, and the end close to the feeding hopper (2) is higher, the higher end of the freezing cylinder (6) is connected to the outlet of the feeding hopper (2), and they cooperate in a rotating manner , there is a central shaft (8) on the other end of the freezing cylinder (6), one end of the central shaft (8) protrudes through the housing (1), and this end of the central shaft (8) is connected to a motor (9) connected to the output shaft; the inlet of the discharge hopper (3) is located below the end surface of the freezing cylinder (6) with the central axis (8), and there are outlets evenly distributed around the outer edge of the end surface of the freezing cylinder (6) (10).