JP3077061U - Continuous drying equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To return organic wastes such as food residues and other organic wastes with a high moisture content to dry granules in a stable manner, a part of the dried products is returned as a water conditioner and put in. Provided is a continuous drying apparatus capable of mixing with a product, promoting crushing, stirring, and drying in the machine, and adjusting a dried material in a flash drying duct. SOLUTION: An undried product supplied from an input port (7) is mixed with a part of a dried product as a moisture regulator returned from a flash drying and lowering duct (9), and moves toward a hot air inlet (3). I do. The high-speed rotating stirring blades (6) disintegrate and diffuse in the machine while being in contact with hot air to promote drying. The material whose specific gravity has become lighter enters the airflow, and a vertical airflow drying duct (from the outlet (4)). 8) is sucked. The second drying of the dried product and the undried product are also performed in the airflow drying up duct (8) by controlling the gas flow rate. The dried matter reaching the air-flow drying lowering duct (9) is separated for the third time by the strength of the inertia force of gravity and the suction force induced in the solid-gas separation device (2).

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a continuous drying apparatus for efficiently and continuously drying organic wastes such as okara and food residues.

[0002]

[Prior art]

 Conventionally, as a continuous drying device, a rotary dryer dries hot air, and the dried material is dried while moving by rotation, while the inside of the cylinder is moved by a screw conveyor and heated steam is supplied from outside. In general, a method of indirect heating and drying, or a flash dryer (for example, JP-A-2000-65476) in which hot air and a dried material are dried while moving at a high speed is generally used.

[0003]

[Problems to be solved by the invention]

 As described above, in the method of continuously drying organic waste or the like by a rotary method, it is necessary to dry more than necessary in order to eliminate the drying of the apparatus due to its large size.

[0004] Furthermore, a flash dryer also needs to adjust the water content in advance, and when recovering solids with a solid-gas separator, cyclones and the like are undried and have a high specific gravity because they are separated by centrifugal force. Will be collected.

[0005]

[Means for Solving the Problems]

 According to the present invention, in order to achieve the above object, the undried material supplied from the inlet (7) is mixed with a part of the dried material as a water conditioning agent returned from the flash drying duct (9). Is moved by the feed screw (5) in the direction of the hot air inlet (3). The high-speed rotating stirring blades (6) disintegrate and spread inside the machine while contacting with the hot air to promote drying. The material whose specific gravity becomes lighter enters the airflow, and the vertical airflow drying from the solid-air outlet (4). It is sucked into the drying rise duct (8). The second drying of the dried product and the undried product are also performed in the airflow drying up duct (8) by controlling the gas flow rate. Flash drying The dried product that has reached the descending duct (9) is separated for the third time by the strength of the inertia force of gravity and the suction force induced in the solid-gas separation device (2).

[0006]

[Embodiment of the invention]

 An embodiment of the present invention will be described with reference to the accompanying drawings. One of the dryers (1) has a hot air inlet (3) communicating with the hot air generator, and the other has a solid air outlet (4) communicating with the flash drying duct (8).

There are a stirring blade (6) connected to the driving device, and a feed screw (5) communicating with the inlet (7) and the flash drying down duct (9).

[0008] A flash drying duct (9) communicating with the vertical flash drying duct (8) is provided with an exhaust port (13) connected to an inducing fan and a dried product discharge port (12) from the middle. It communicates with the gas separation device (2).

[0009] At the inlet side of the solid-gas separation device (2), there is a regulating valve (10) for solid-gas separation.

[0010]

[Effect of the invention]

 As described above, the continuous drying apparatus for organic waste and the like according to the present invention transports the undried substance whose water content has been adjusted inside the dryer (1), and crushes, agitates, expands the surface area, and generates hot air. Contact and drying are promoted. The heavy undried material that cannot catch the air flow falls down and is conveyed to the hot air inlet (3) by the feed screw (5), where the first separation is performed. The second separation is carried out by the vertical airflow drying rising duct (8) to separate those that got on the updraft and those that couldn't. In the airflow drying and lowering duct (9), the dried matter is separated for the third time by the strength of the inertia force of gravity and the suction force induced in the solid-gas separation device (2). It has the effect of improving thermal efficiency and saving labor, and can perform drying suitable for continuous drying of organic waste and the like.

[Brief description of the drawings]

FIG. 1 is a plan view of the present invention.

FIG. 2 is an elevation view of the present invention.

[Description of Signs] 1 Dryer 2 Solid-Gas Separation Device 3 Hot Air Inlet 4 Solid-Gas Outlet 5 Feed Screw 6 Stirring Blade 7 Input Port 8 Airflow Drying Up Duct 9 Airflow Drying Downduct 10 Adjustment Valve 11 Exhaust port 13 Exhaust port 14 Drive unit

Claims (1)

[Utility model registration claims] 1. A feed screw (5), which communicates with an inlet (7) and a flash drying descent duct (9) inside a dryer (1) to mix and return a part of the dried product for moisture adjustment. A hot air inlet (3) communicating with a hot air generating device is connected to one side of a drying device (1) having a built-in stirring blade (6), and a solid air communicating with a flash drying up duct (8) and a flash drying down duct (9) on the other side. A continuity characterized by comprising a solid-gas separator (2) with an outlet (4) and a duct (11) communicating with the solid-gas separator (2) in the middle of the gas-flow drying down duct (9). Drying equipment.