Drying system for dried beancurd stick forming

Abstract

The utility model provides a drying system for dried beancurd stick forming, which relates to the technical field of food processing and comprises a drying chamber, a conveyor and a first heat exchange fan, the first heat exchange fan is arranged on the outer side of the drying chamber, a first air supply port is formed in the top of the drying chamber, and a first air return port is formed in the bottom of the drying chamber. The first heat exchanger communicates with a first air supply outlet and a first air return inlet of the drying chamber through a first air supply pipeline and a first air return pipeline. According to the device, hot air can be blown into the drying chamber, evaporation of water in dried beancurd sticks is accelerated, meanwhile, the heat exchange fan can recycle used air, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a drying system for bean curd stick molding. Background Art

[0002] The main process flow of the yuba machine is: heat the stainless steel conveyor belt with a steam water tank → apply soybean milk on the surface of the stainless steel conveyor belt → evaporate the moisture of the soybean milk to form yuba film → peel the film off the stainless steel conveyor belt → use soybean milk steam and hot air to soften the yuba film → cut the yuba film into continuous long sheets → shape it into round bamboo strips → pre-dry → cut horizontally → sort.

[0003] The invention patent with the existing authorization announcement number CN106819148B relates to a bean product production equipment, and in particular to a new type of CNC double-layer bean curd skin machine, including a pulp barrel located on one side of a frame, on which a drying chamber, an upper molding trough, and a lower molding trough are arranged from top to bottom; conveyor belts are arranged between the tail end of the lower molding trough and the tail end of the upper molding trough, and between the tail end of the upper molding trough and the drying chamber; the upper molding trough and the lower molding trough are provided with a pulp return system; a cold air system is arranged above the upper molding trough and the lower molding trough; upper and lower layers of conveyor belts are installed on the frame in the drying chamber, and air outlets are densely distributed on the top and side walls of the drying chamber, and hot air is blown through the top of the drying chamber.

[0004] Pipes connect the heat exchanger.

[0005] The applicant has found that the existing device has the following problems: the drying effect of the existing device is poor. Utility Model Content

[0006] The utility model aims to provide a drying system for bean curd stick molding to solve the technical problem of poor drying effect in the prior art.

[0007] In order to solve the above problems, the utility model relates to a drying system for forming bean curd sticks, which adopts the following technical solutions:

[0008] The utility model provides a drying system for bean curd stick molding, comprising a drying chamber and a conveyor, wherein opposite ends of the drying chamber are provided with passage openings for the conveyor, the conveyor is arranged in the drying chamber, and the head and tail ends of the conveyor respectively pass through the passage openings at the two ends of the dryer, the conveyor comprises a frame, an active roller, a driven roller, and a conveyor belt, the active roller and the driven roller are respectively arranged at the two ends of the frame, the conveyor belt is connected head to tail after wrapping around the active roller and the driven roller, and further comprises a first heat exchange fan, the first heat exchange fan is installed on the outside of the drying chamber, a first air supply port is provided on the top of the drying chamber, a first air return port is provided on the bottom of the drying chamber, and the first heat exchanger is connected to the first air supply port and the first air return port of the drying chamber through a first air supply duct and a first return air duct respectively.

[0009] Preferably, it also includes a second heat exchange fan, which is installed on the outside of the drying room. A second air supply outlet is opened on one side wall of the drying room and located on the upper side of the conveyor, and a second return air outlet is opened on the other side wall of the drying room and located on the lower side of the conveyor. The second heat exchanger is connected to the second air supply outlet and the second return air outlet of the drying room through the second air supply duct and the second return air duct respectively.

[0010] Preferably, the first return air outlet and the second return air outlet are both covered with mesh plates for preventing the bean curd sheet debris from passing through.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model provides a drying system for forming bean curd sheets, comprising a drying chamber and a conveyor, wherein the two opposite ends of the drying chamber are provided with passages for the conveyor, the conveyor is arranged in the drying chamber, and the front and rear ends of the conveyor respectively pass through the passages at the two ends of the drying chamber, the conveyor comprises a frame, an active roller, a driven roller, and a conveyor belt, the active roller and the driven roller are respectively arranged at the two ends of the frame, and the conveyor belt is connected end to end after wrapping around the active roller and the driven roller, and the difference from the prior art is that it also comprises a first heat exchange fan, the first heat exchange fan is arranged outside the drying chamber, the top of the drying chamber is provided with a first air supply port, the bottom of the drying chamber is provided with a first air return port, and the first heat exchanger is connected to the first air supply port and the first air return port of the drying chamber through the first air supply duct and the first air return duct respectively. The air supply port is responsible for sending hot air into the drying chamber, and the hot air passes through the mesh on the conveyor belt after passing through the bean curd sheets, and the return port recycles the used air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment:

[0014] Figure 1 The figure is a schematic diagram of the structure of a drying system for forming bean curd sheets.

[0015] Description of reference numerals: 1. drying chamber; 2. conveyor; 3. first heat exchange fan; 4. first air supply duct; 5. first return air duct; DETAILED DESCRIPTION

[0016] In order to make the technical purpose, technical solution and beneficial effects of the present utility model clearer, the technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] The utility model provides a drying system for forming bean curd sticks, as shown in the figure, including a drying chamber 1, a conveyor 2, and a first heat exchange fan 3. The conveyor 2 and the drying chamber 1 are prior art. For ease of understanding, it is now stated that the conveyor 2 includes a frame, an active roller, a driven roller, and a conveyor belt. The active roller and the driven roller are respectively arranged at the two ends of the frame. The conveyor belt is connected end to end after wrapping around the active roller and the driven roller. The active roller is connected to an external motor. The motor works to drive the conveyor belt to move cyclically through the rotation of the active roller. The conveyor belt is used for transporting bean curd sticks. The drying chamber 1 is a box body covered on the outside of the conveyor belt. The opposite ends of the drying chamber 1 are provided with passages for the conveyor 2. The conveyor 2 is arranged in the drying chamber 1, and the head and tail ends of the conveyor 2 respectively pass through the two end passages of the dryer.

[0018] The first heat exchange fan 3 of the device is installed outside the drying chamber 1. The top of the drying chamber 1 is provided with a first air supply port, the bottom of the drying chamber 1 is provided with a first air return port, and the conveyor 2 is located between the first air supply port and the first air return port.

[0019] The first heat exchanger is connected to the first air supply port through the first air supply duct 4, and the first heat exchanger is connected to the first air return port through the first air return duct 5. The conveyor belt is set as a mesh belt with mesh holes, so that the hot air blown out from the first air supply port passes through the bean curd and the mesh belt and is discharged from the first air supply port. The air supply port is responsible for sending hot air into the drying chamber 1, while the return air port is responsible for recycling the used air. This design ensures that the air in the drying chamber 1 flows from top to bottom through the inside of the bean curd, avoiding the problem of uneven drying caused by uneven temperature. The air supply duct transports hot air from the heat exchange fan to the drying chamber 1, and the return air duct recycles the used air from the drying chamber 1 back to the heat exchange fan. This design ensures smooth air circulation and reduces energy consumption.

[0020] In order to further improve the drying effect, the device also includes a second heat exchange fan, which is installed outside the drying chamber 1. A second air supply port is provided on one side wall of the drying chamber 1 and located above the conveyor 2, and a second air return port is provided on the other side wall of the drying chamber 1 and located below the conveyor 2. The second heat exchanger is connected to the second air supply port and the second air return port of the drying chamber 1 through the second air supply duct and the second air return duct respectively. Combined with the air supply and return design at the top and bottom, and the newly added side wall air supply and return design, a multi-dimensional air circulation is formed inside the entire drying chamber 1. This not only ensures that the bean curd sheets are evenly exposed to hot air, but also improves the drying efficiency.

[0021] In order to reduce the risk of bean curd sheet particles entering the pipeline and causing pipeline blockage, the first return air outlet and the second return air outlet are both covered with mesh plates to prevent bean curd sheet debris from passing through.

[0022] The second heat exchange fan has the same structure as the first heat exchange fan 3 and is a prior art. A heat exchanger is arranged inside the heat exchange fan. The indoor hot air and the outdoor cool air are respectively drawn into the heat exchanger to realize the heat exchange and then the indoor hot air is discharged outdoors. At the same time, the outdoor cool air is converted into hot air and then discharged into the drying chamber 1. Specifically, the heat exchange fan is mainly composed of a box, a heat exchanger, a power system (fan), and a control system. The heat exchanger is the core component of the heat exchange fan and is responsible for realizing the heat exchange between indoor and outdoor air. The indoor hot air and the outdoor cool air are respectively drawn into the heat exchanger, and the heat transfer is realized through the special structure of the heat exchanger (such as a plate heat exchanger). The indoor hot air is drawn into the heat exchanger through the exhaust system of the heat exchange fan. The outdoor cool air is also drawn into the heat exchanger through another channel. In the heat exchanger, the indoor hot air and the outdoor cool air exchange heat. The heat of the indoor hot air is transferred to the outdoor cool air, which increases its temperature; while the temperature of the indoor hot air decreases due to the loss of heat. This process is achieved through special structures inside the heat exchanger (such as plate heat exchangers), and heat transfer is achieved through the flow and contact of cold and hot media in the heat exchanger.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present invention, and any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A drying system for forming bean curd sticks, comprising a drying chamber and a conveyor, wherein two opposite ends of the drying chamber are provided with passages for the conveyor, the conveyor is arranged in the drying chamber, and the head and tail ends of the conveyor respectively pass through the passages at the two ends of the dryer, the conveyor comprises a frame, a driving roller, a driven roller, and a conveyor belt, the driving roller and the driven roller are respectively arranged at the two ends of the frame, and the conveyor belt is connected head to tail after it surrounds the driving roller and the driven roller, characterized in that: It also includes a first heat exchange fan, which is installed on the outside of the drying room. A first air supply outlet is opened on the top of the drying room, and a first air return outlet is opened on the bottom of the drying room. The first heat exchanger is connected to the first air supply outlet and the first air return outlet of the drying room through the first air supply duct and the first return air duct respectively, and the conveyor belt is set as a mesh belt.

2. A drying system for forming yuba according to claim 1, characterized in that: It also includes a second heat exchange fan, which is installed on the outside of the drying room. A second air supply outlet is opened on one side wall of the drying room and located on the upper side of the conveyor, and a second air return outlet is opened on the other side wall of the drying room and located on the lower side of the conveyor. The second heat exchanger is connected to the second air supply outlet and the second air return outlet of the drying room through the second air supply duct and the second return air duct respectively.

3. A drying system for forming yuba according to claim 2, characterized in that: The first air return port and the second air return port are both covered with mesh plates for preventing the bean curd sheet debris from passing through.

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