Eggshell membrane separation device, method and production line

Abstract

The invention discloses an eggshell membrane separation device, method and production line. The eggshell membrane separation device includes a shell, a drainage plate, an upper cover plate and a mixing motor. The drainage plate is provided with a diversion groove and a collecting groove, the diversion groove communicates with the collecting groove, the output end of the mixing motor is connected with a mixing paddle, and the mixing paddle is provided with a first large blade and a second small blade; and the shell is further internally provided with a plurality of arc baffles, the baffles aremovably attached to the inner wall of the shell, and each baffle is provided with one or more bulges. Under the combined action of mechanical agitation, shear breaking and physical water separation ofthe device, the cleaning of eggshell membranes and the high-efficiency continuous automatic separation discharging are realized simultaneously. By using the separation method, device and production line, the purity of the eggshell membranes obtained by separation can reach up to 97% or more, and moreover, by additionally arranging a recovery and purification water pool behind an egg membrane collection device, production water can be recycled. The separation method has the significant advantages of convenient operation, high separation efficiency, high purity of the separated egg membranes, continuous and automatic operation and cost saving.

Description

technical field [0001] The invention relates to the field of eggshell treatment, in particular to an eggshell membrane separation device, a separation method and a production line thereof. Background technique [0002] my country is a big country in the production and consumption of poultry eggs, with an annual output of about 30 million tons, accounting for about 45% of global output, about 4.5 times that of the United States and more than 7 times that of India. The annual output of discarded eggshells and shell membranes in my country is huge. The annual output of discarded eggshells is as high as 3.6 million tons, and the annual output of discarded eggshell membranes is as high as 400,000 tons. Eggshell membrane is a natural and valuable resource with a wide range of sources and low cost. At present, except for a small part of eggshells and shell membranes in my country, they are used for feed, and most of them are directly discarded. Waste eggshells carrying egg whites...

AI Technical Summary

Problems solved by technology

However, the addition of hydrochloric acid chemical reagents will cause chemical changes in the nutrients in the egg membrane, which will affect the quality of the egg membrane and limit the application of the egg membrane.

The mechanical separation method mainly includes machine rolling, which is complicated to operate and easily destroys the original structure of the lime shell and eggshell membrane, and the recovery rate of the eggshell membrane is low; the pulverization winnowing method using airflow separation technology has low efficiency , there are problems such as low purity of egg membranes, high energy consumption, and difficult operability

As another example, the patent "Eggshell Membrane Separation" with the publication number CN102639007A discloses that cavitation is applied to the fluid to make the unseparated eggshell membrane achieve the separation effect. This method involves a separation device, which consists of There are many parts and are relatively complicated, and the investment in industry is relatively large, and the energy consumption is high. According to the investigation, a set of cyclone separation equipment has high power and high energy consumption. It has strict requirements on the moisture control of eggshells before separation, and it is difficult to achieve Membrane separation is stable, and the purity of the separated egg membrane is not high

[0005] As another example, the patent "a poultry eggshell membrane separation device" with the publication number CN105685845A adopts the method of heating and separating, utilizes the characteristics of different expansion coefficients of eggshells and egg membranes when heated, and heats the eggshells with hot air. The egg membrane of poultry eggs is detached from the eggshell, and then separated by a cyclone. This method consumes a lot of heat energy. At the same time, heating the egg membrane has a certain destructive effect on the active components of the egg membrane. Easy to stick to the surface of the egg membrane, difficult to separate, low separation efficiency

[0006] It can be seen that the separation method in the prior art is not perfect, there are various problems, and a new egg membrane separation equipment or process is urgently needed

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