A high-efficiency deep baking process and its device

Abstract

The invention discloses a high-efficiency deep roasting process and its device. In the high-efficiency deep roasting process, a hot air circulation pipe is connected to the first air inlet pipe, and the air outside the equipment is introduced into the combustion chamber, so that the temperature of the hot air is reduced, and the indirect roasting process is achieved. The purpose of temperature control is to reduce the temperature rise rate of coffee beans in the deep roasting stage by connecting the second air inlet pipe to the combustion chamber to blow in a certain flow of cold air, so as to slow down the temperature rise in the later stage of roasting and improve the temperature control effect. Good, to achieve the effect of deep baking process control and product quality control; the high-efficiency deep roasting device performs quenching water cooling in the baking drum and cold air cooling in the cooling plate, which makes the cooling process short and improves work efficiency; the high-efficiency deep roasting device The roasting device removes the bean skins in the cooked coffee beans through the first cyclone separator and the second cyclone separator, and removes the stones and magnetic metals in the cooked coffee beans through the stone and iron removal road, so that the quality of the cooked coffee beans produced high.

Description

technical field [0001] The invention relates to the field of coffee bean processing, in particular to a high-efficiency dark roasting process and a device thereof. Background technique [0002] The roasting process of green coffee beans is an important part of the coffee manufacturing industry. During the roasting operation, the chemical and physical properties of green coffee beans are transformed into roasted coffee bean products. While the green coffee beans are roasted and go through the first explosion, the second explosion, and gradually caramelization to the final roasting process, the control of the temperature and water loss rate is to make the coffee beans expand, shrink and change their color, taste, smell and texture. An important factor of density, thus producing different coffee flavors or special flavors. [0003] Therefore, the patent application number CN201611131323.X discloses a coffee bean roasting device, which includes a device main body, a rotary roas...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above technical problems, the object of the present invention is to provide a high-efficiency deep roasting process and its device: (1) utilize the heat of the tail gas discharged from the roasting drum, by adjusting the electromagnetic valve on the tail gas delivery pipe and the hot air circulation pipe, Control the ratio of discharge and circulation, so that part of the heat is recirculated through the hot air circulation pipe and enters the heating chamber for reuse. The hot air circulation pipe is connected to the first air inlet pipe, and the air outside the equipment is introduced into the combustion chamber. On the one hand, the combustion is more complete. On the other hand, the hot air is reduced to achieve the purpose of indirect temperature control during the roasting process, and the second air inlet pipe is connected to the combustion chamber to blow in a certain flow of cold air to reduce the temperature rise rate of coffee beans during the deep roasting stage. It slows down the temperature rise in the later stage of baking, and solves the problem that in the existing deep baking process, timely temperature control cannot be achieved at the end of deep baking, which will make the deep baking process unstable, thereby affecting the product flavor and various indicators (2) During the roasting process of raw coffee beans in the roasting drum, the first stirring blade in the roasting drum stirs the coffee beans evenly to ensure that the coffee beans are heated evenly during the roasting process. After the completion, the water supply valve is opened, and clean water is supplied into the water inlet pipe, and then the water is quenched. The spray hole sprays the roasting drum and coffee beans evenly with the rotation of the first stirring blade, and the roasting drum ends. The function of heating up and terminating the heating up of coffee beans. The cooked coffee beans go through the water quenching process in the roasting drum. After the temperature of the beans drops, the first electric valve is automatically opened to discharge the cooked coffee beans into the cooling plate. The sieve plate of the cooling plate has a uniform Distributed sieve holes, the bottom of the sieve holes are connected to the negative pressure fan of the second cyclone separator, and receive the wind outside the cooling plate from top to bottom to further cool the cooked coffee beans. At the same time, the second stirring blade on the cooling plate, Spread the cooked coffee beans evenly, accelerate the heat dissipation of the cooked coffee beans, and solve the problem that the existing deep roasting device uses natural cooling for cooling after roasting, and the cooling process takes a long time, which makes the production efficiency of coffee beans low Problem; (3) During the roasting process of green coffee beans, their own bean skins will fall off, and the bean skins in the roasting drum will be drawn out by the negative pressure fan of the first cyclone separator, collected by the first cyclone separator, and the coffee The cooked beans are in the cooling pan, the small particles of impurities in the cooked coffee beans, the cooked coffee bean powder and the bean skin are brought from the sieve plate of the cooling pan to the bottom of the inner cavity of the cooling pan, and finally sucked into the second cyclone separator for collection , to avoid the burnt or miscellaneous smell caused by the high-temperature burning of the bean skin during the roasting of the bean skin, and when the cooked coffee beans pass through the stone and rail removal, the stones and magnetic metals in the cooked coffee beans are removed, which solves the problem The existing deep roasting device cannot effectively remove the bean skins that fall off during the roasting process of coffee beans, nor can it effectively remove the stones and magnetic metals in the coffee beans, resulting in the poor quality of the produced coffee beans

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