阅读说明：本技术 冰冻水产品解冻方法及装置 (Frozen aquatic product unfreezing method and device ) 是由 杨莉莉 梁吕保 蔡雯雯 杨天龙 陆田 董广生 黄建聪 张龙 陶赵邦 卢致远 王军 于 2019-12-06 设计创作，主要内容包括：本发明的目的是提出一种解冻速度快、解冻效果好的冰冻水产品解冻方法及装置。本发明的冰冻水产品解冻装置包括冷水池和振动台；所述冷水池与冷水供应设备相连,所述冷水池、振动台均有多个,且冷水池、振动台间隔设置,所述相邻冷水池、振动台之间设有倾斜的输送带,所述输送带的一端浸没于冷水池内,另一端倾斜向上延伸至振动台的进料端的上方；所述振动台的台面倾斜设置,台面的倾斜方向为由振动台的进料端向出料端逐渐降低,且台面延伸至振动台出料端的冷水池中输送带的上方位置。本发明利用冷水结冰放热的原理,并采用流水线式的解冻装置,可以在保证解冻效果的同时,大大提高解冻速度,具有很好的实用性。(The invention aims to provide frozen aquatic product thawing methods and devices with high thawing speed and good thawing effect, wherein the thawing devices comprise a cold water tank and a vibration table, the cold water tank is connected with cold water supply equipment, the cold water tank and the vibration table are respectively provided with a plurality of cold water tanks and vibration tables which are arranged at intervals, inclined conveying belts are arranged between the adjacent cold water tanks and the vibration tables, the end of each conveying belt is immersed in the cold water tank, the end of each conveying belt is inclined and extends upwards to the position above the feeding end of the vibration table, the table top of the vibration table is inclined, the inclination direction of the table top is gradually reduced from the feeding end to the discharging end of the vibration table, and the table top extends to the position above the conveying belts in the cold water tank at the discharging end of the vibration table.)

1, frozen aquatic products thawing method, characterized by comprising the following steps:

A. soaking the frozen aquatic product in cold water, and taking out the frozen aquatic product from the cold water after an ice layer is formed on the surface of the frozen aquatic product;

B. removing the ice layer on the surface of the frozen aquatic product;

C. and (6) repeatedly executing the step A, B until the ice layer does not appear on the surface of the frozen aquatic product, and finally taking out the frozen aquatic product from cold water and naturally thawing the frozen aquatic product in a normal-temperature environment.

The thawing device for the frozen aquatic products is characterized by comprising a cold water tank and a vibration table, wherein the cold water tank is connected with cold water supply equipment, the cold water tank and the vibration table are arranged at intervals, an inclined conveying belt is arranged between every two adjacent cold water tanks and the vibration table, the end of the conveying belt is immersed in the cold water tank, the end of the conveying belt is inclined and extends upwards to the position above the feeding end of the vibration table, the table top of the vibration table is inclined, the inclination direction of the table top is gradually reduced from the feeding end to the discharging end of the vibration table, and the table top extends to the position above the conveying belt in the cold water tank at the discharging end of the vibration table.

3. The thawing apparatus for frozen aquatic products according to claim 2, wherein the plurality of cold water pools are communicated with each other through water pipes, and the cold water supply device is connected with the cold water pools at the head and tail positions through a water inlet pipe and a water outlet pipe, respectively.

Technical Field

The invention belongs to the technical field of aquatic product processing, and particularly relates to a method and a device for unfreezing frozen aquatic products.

Background

At present, the common unfreezing mode is natural unfreezing, soaking unfreezing, microwave unfreezing and the like, wherein the natural unfreezing and the soaking unfreezing have the defects of large occupied area and long unfreezing time, and the microwave unfreezing is fast, but the unfreezing is not uniform, so that the processing quality and the taste are influenced.

Disclosure of Invention

The invention aims to provide frozen aquatic product thawing methods and devices with high thawing speed and good thawing effect.

The thawing method of the frozen aquatic product comprises the following steps:

A. soaking the frozen aquatic product in cold water, and taking out the frozen aquatic product from the cold water after an ice layer is formed on the surface of the frozen aquatic product;

B. removing the ice layer on the surface of the frozen aquatic product;

C. and (6) repeatedly executing the step A, B until the ice layer does not appear on the surface of the frozen aquatic product, and finally taking out the frozen aquatic product from cold water and naturally thawing the frozen aquatic product in a normal-temperature environment.

The principle of the thawing method is as follows:

after the frozen aquatic product is put into cold water, the ice layer on the surface can be generated due to the fact that heat in water is absorbed, but in the freezing process, the temperature of the ice layer is kept unchanged, the water is continuously heat-releasing in the freezing process (1 g of water is frozen to release 80 calories of heat), the heat is conducted to the aquatic product with lower temperature from water with higher relative temperature, ice crystals in the aquatic product are gradually thawed, after the ice layer on the aquatic product is thick, the capacity of the ice layer for transferring heat to the aquatic product is rapidly reduced, at the moment, the ice layer on the surface of the frozen aquatic product is removed, the aquatic product is put into the cold water again, and the steps of freezing and removing ice are repeated, so that the heat in the water can be rapidly transferred into the aquatic product, the aquatic product is thawed due to the fact that the temperature inside and outside of the aquatic product is , the thawing speed of knowing the aquatic product is improved, and the problem that cell walls of the surface of the aquatic product are broken due.

The frozen aquatic product unfreezing device comprises a cold water tank and a vibration table, wherein the cold water tank is connected with cold water supply equipment, a plurality of cold water tanks and a plurality of vibration tables are arranged at intervals, an inclined conveying belt is arranged between every two adjacent cold water tanks and vibration tables, the end of the conveying belt is immersed in the cold water tank, the other end of the conveying belt is inclined and extends upwards to the position above the feeding end of the vibration table, the table top of the vibration table is inclined, the inclination direction of the table top is gradually reduced from the feeding end to the discharging end of the vibration table, and the table top extends to the position above the conveying belt in the cold water tank at the discharging end of the vibration table.

The working principle of the unfreezing device for the frozen aquatic products is as follows:

the frozen aquatic products are placed above a conveying belt in a th cold water tank, the conveying belt moves slowly, the frozen aquatic products move from the th cold water tank to a th vibration table, in the process, the surfaces of the frozen aquatic products are frozen, and the frozen aquatic products begin to thaw gradually inside under the action of heat released by freezing of cold water, when the ice layer on the surfaces of the frozen aquatic products is thick and affects heat transfer to the inside of the frozen aquatic products, the frozen aquatic products are conveyed to a th vibration table by the conveying belt, the vibration of the th vibration table enables the ice layer on the surfaces of the frozen aquatic products to be broken up and fall off, as the table top of the vibration table is inclined, the frozen aquatic products without the ice layers can gradually move towards the second cold water tank in the vibration process, and finally fall onto the conveying belt of the second cold water tank, a second freezing process begins, and accordingly, the frozen aquatic products can be thawed quickly and uniformly in a large batch of frozen aquatic products, and thawing production plants can be greatly improved due to the fact that a plurality of cold water tanks and vibration tables form large batch of unfreezing production lines.

, the cold water pools are communicated through water pipes, and the cold water supply equipment is respectively connected with the cold water pools at the head and tail positions through water inlet pipes and water outlet pipes, so that cold water supply equipment can be used for supplying cold water to all the cold water pools, and the pipeline connection is simplified.

The invention utilizes the principle of cold water freezing and heat release and adopts a production line type unfreezing device, thus greatly improving the unfreezing speed while ensuring the unfreezing effect and having good practicability.

Drawings

FIG. 1 is a schematic view showing the structure of a thawing apparatus for frozen seafood of the present invention.

The figures are numbered: 1. a cold water tank; 2. a vibration table; 21. a table top; 3. and (5) conveying the belt.

Detailed Description

The following describes an embodiment of the present invention, such as the shape, structure, mutual position and connection relationship of the components, and the action and operation principle of the components, in further detail with reference to the accompanying drawings.