CN209295542U - Hot air combined with microwave drying fluidized bed - Google Patents

Abstract

The utility model relates to a hot air combined with microwave drying fluidized bed, which comprises a drying room, the bottom of the drying room is connected with a hot air blower through a pipeline, a microwave generator is arranged on the drying room, a material guide pipe is fixed in the drying room, and There is a material storage room on the right side, and an outer cylinder is fixedly sleeved on the outer side of the lower part of the drying room. A material guiding cavity is formed between the inner wall of the outer tube and the outer wall of the drying room. There is a feeding port, a feeding pipe is connected to the upper left side of the outer cylinder, and a feeding box is connected to the upper end of the feeding pipe. A feeding auger is installed inside the feeding box, and a feeding motor is fixed on the feeding auger. The material box is provided with a feed hopper. In the utility model, an outer barrel is arranged at the lower part of the drying chamber, and the material can enter the drying chamber from all sides through the feeding port connected to the outer barrel evenly arranged on the periphery of the drying chamber, so as to prevent the materials from concentrating on the One side is conducive to the drying of materials, and the drying is more thorough.

Description

Hot air combined with microwave drying fluidized bed

technical field

The utility model belongs to the technical field of drying equipment, in particular to a hot air combined microwave drying fluidized bed.

Background technique

Fluidized bed drying equipment is often used in the current drying of grain and food. At present, hot air fluidized bed and microwave fluidized bed are commonly used, which are generally used alone. At present, there are also combinations for drying. The hot air blows the material into the microwave. In the fluidized bed, when the material enters the fluidized bed, it is directly connected to the feed hopper through the connecting pipe, resulting in uneven distribution of the material. When the hot air blows up, the material is concentrated on one side, which is not conducive to the drying of the material.

Utility model content

The purpose of this utility model is to provide a hot air combined with microwave drying fluidized bed, which solves the problem that when the material enters the fluidized bed in the current fluidized bed, it is directly connected to the feeding hopper through a connecting pipe, causing the material to be distributed unevenly and the hot air blowing When moving up, the materials are concentrated on one side, which is unfavorable for the drying of materials.

The utility model hot air combined microwave drying fluidized bed comprises a drying room, the bottom of the drying room is connected with a hot air blower through a pipeline, the power plug of the hot air blower is connected to an indoor power socket, and a microwave generator is arranged on the outer wall of the drying room. The right side of the upper part of the drying chamber is fixed with a material guide pipe, the right side of the drying chamber is provided with a storage room, the bottom of the storage room is provided with a discharge pipe, the discharge pipe is provided with a valve, and the outside of the lower part of the drying chamber is fixed with an outer cylinder. , a material guide cavity is formed between the inner wall of the outer cylinder and the outer wall of the drying chamber, and the inner wall of the drying chamber corresponding to the bottom of the material guide cavity is provided with a feed port, and multiple feed ports are evenly distributed on the outer periphery of the drying chamber , the lower part of the drying chamber is fixed with a filter plate, the filter plate is below the feeding port, the upper left side of the outer cylinder is connected with a feeding pipe, the upper end of the feeding pipe is connected with a feeding box, and the feeding box is equipped with a feeding box through bearing rotation. The inner side of the bearing is equipped with a bearing sealing ring, and the left end of the feeding auger extends out of the feeding box to fix the feeding motor. The power plug of the feeding motor is connected to the indoor power socket, and the feeding motor is fixed on the mounting plate. The plate is fixed on the left end of the feeding box, the bottom of the mounting plate is fixed with a reinforcing rod, the bottom of the reinforcing rod is fixed with the outrigger of the feeding box, a feeding hopper is arranged on the left top of the feeding box, and a There are multiple air inlet holes, the top of the air inlet hole is connected with the air duct, the air duct is connected with the exhaust fan through the pipe, the power plug of the exhaust fan is connected with the indoor power socket, the air inlet of the exhaust fan is connected with the air duct, and the air duct The other end of the air duct is connected with a spiral coil, the spiral coil is located in the material storage room, and the other end of the spiral coil extends out of the material storage room. There is an outlet at the bottom of the right end of the feeding box, and the outlet is connected with the feeding pipe.

The bottom of the outer cylinder is in the shape of a funnel, and the feeding port is inclined to be high on the outside and low on the inside, which is convenient for feeding.

The air inlet hole is a stepped hole with a diameter at the upper end greater than that at the lower end. A filter screen is fixed at the step of the stepped hole to prevent materials from entering.

A temporary storage room is fixed on the top of the storage room, and a connecting pipe is fixed on the bottom of the temporary storage room. The top of the temporary storage room is provided with an air outlet, and the air outlet is connected to the air inlet of the exhaust fan through a pipe. The water vapor brought out after drying can be taken out in the temporary storage room. And heat energy recovery is carried out to the extracted hot air.

The pipeline connected to the gas outlet is provided with a drier. The dryer is an electric heating tube dryer or a desiccant is placed in a drying box, and the other end of the dryer is connected to the air inlet of the negative pressure fan through a pipeline. Removes moisture from humidity.

The microwave generator includes a microwave conduit arranged on the side wall of the drying chamber, the microwave conduit communicates with the interior of the drying chamber, the microwave conduit is connected with a magnetron, and the magnetron is connected with a microwave power supply.

When in use, the material enters in the feeding hopper, then passes through the feeding auger, is transported to the right side of the feeding box, enters the outer cylinder from the feeding pipe, and then enters the lower part of the drying chamber through the feeding port, and then passes through the hot air blower. The hot air is blown out for primary drying, and blows the material up. When the material is rising, it is heated and dried by microwaves for the second time. The dried material mixed with moisture enters the temporary storage room, and then the moisture in the temporary storage room is drawn out by the exhaust fan. After being dried by the dryer, it is evenly passed into the feeding box for pre-drying. The material enters the storage room after passing through the connecting pipe, and exchanges heat with the spiral coil in the storage room. The hot air after the heat exchange of the spiral coil passes through The exhaust fan is passed into the material conveying box for pre-drying to reduce energy waste.

Compared with the prior art, the utility model has the following beneficial effects:

By setting the outer barrel at the lower part of the drying chamber, and through the feeding port connected to the outer barrel evenly arranged on the periphery of the drying chamber, the material can enter the drying chamber from all sides, preventing the material from concentrating on one side when the material is blown up by heat. It is conducive to the drying of materials, and the drying is more thorough. When the materials are fed through the conveying auger, they can be preheated by the recovered heat energy, saving energy and preventing the wall from sticking.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the schematic diagram of the enlarged structure of place A in Fig. 1;

Fig. 3 is the enlarged schematic diagram of the structure at B in Fig. 1;

In the figure: 1. Conveyor motor, 2. Feed hopper, 3. Conveyor auger, 4. Conveyor box, 5. Microwave duct, 6. Drying chamber, 7. Exhaust fan, 8. Dryer, 9. Material guide pipe, 10, temporary storage room, 11, microwave power supply, 12, magnetron, 13, connecting pipe, 14, spiral coil tube, 15, material storage room, 16, air guide pipe, 17, hot air blower, 18 , filter plate, 19, outer cylinder, 20, feed pipe, 21, air duct, 22, connector, 23, air inlet, 24, filter screen, 25, feed port.

Detailed ways

Below in conjunction with embodiment the utility model is further described.

The hot air combined microwave drying fluidized bed as shown in Figure 1 to Figure 3 comprises a drying chamber 6, the bottom of the drying chamber 6 is connected with a hot air blower 17 through a pipeline, and the outer wall of the drying chamber 6 is provided with a microwave generator, and the drying chamber The upper right side of the 6 is fixed with a feed pipe 9, the right side of the drying chamber 6 is provided with a material storage chamber 15, the bottom of the material storage chamber 15 is provided with a discharge pipe, and the outside of the lower part of the drying chamber 6 is fixedly covered with an outer cylinder 19. A material guide cavity is formed between the inner wall of the outer cylinder 19 and the outer wall of the drying chamber 6, and a plurality of feeding ports 25 are arranged on the inner wall of the drying chamber 6 corresponding to the bottom of the material guiding cavity, and a filter is fixed at the lower part of the drying chamber 6. Plate 18 and filter plate 18 are below the feeding port 25, the upper left side of the outer cylinder 19 is connected with a feeding pipe 20, the upper end of the feeding pipe 20 is connected with a feeding box 4, and a feeding box 4 is rotated inside the feeding box 4. The auger 3, the left end of the conveying auger 3 extends out of the conveying box 4 and is fixed with a conveying motor 1, the top left side of the conveying box 4 is provided with a feed hopper 2, and the top inner wall of the conveying box 4 is provided with a plurality of The air inlet 23, the top of the air inlet 23 is connected with the air delivery pipe 21, the air delivery pipe 21 is connected with the exhaust fan 7 through the pipeline, the air inlet of the exhaust fan 7 is connected with the air guide pipe 16, and the other end of the air guide pipe 16 is connected The spiral coil 14, the spiral coil 14 is in the material storage chamber 15, and the other end of the spiral coil 14 extends out of the material storage chamber 15.

The bottom of the outer cylinder 19 is funnel-shaped, and the feeding port 25 is inclined on the outside and high on the inside.

The air inlet hole 23 is a stepped hole whose upper diameter is greater than the lower diameter, and the step of the stepped hole is fixed with a filter screen 24, and the top of the stepped hole is threaded with a connector 22, and the connector 22 top is fixed with the air duct 21.

The top of the storage chamber 15 is fixed with a temporary storage chamber 10, and the bottom of the temporary storage chamber 10 is fixed with a connecting pipe 13. The pipe 9 is inclined to the left and the right is low, and the top of the temporary storage chamber 10 has an air outlet, and the air outlet is connected to the air inlet of the exhaust fan 7 through a pipeline.

A drier 8 is provided on the pipeline connected to the gas outlet.

The microwave generator includes a microwave conduit 5 arranged on the side wall of the drying chamber 6 , the microwave conduit 5 is connected with a magnetron 12 , and the magnetron 12 is connected with a microwave power supply 11 .

To sum up, the utility model arranges the outer barrel at the lower part of the drying chamber, and through the feeding port connected to the outer barrel evenly arranged on the periphery of the drying chamber, the material can enter the drying chamber from all sides, preventing the material from rising when the heat is blown. At the same time, the materials are concentrated on one side, which is beneficial to the drying of the materials, and the drying is more thorough, and when the materials are fed through the conveying auger, they can be preheated by the recovered heat energy, saving energy and preventing the wall from sticking.

In the description of the present utility model, the orientation or positional relationship indicated by the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom" etc. are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the utility model and does not require the utility model to be constructed and operated in a specific orientation, so it cannot be construed as a limitation of the utility model.

Claims (6)

1. a kind of hot air combined microwave drying fluidized bed, including hothouse (6), the bottom of hothouse (6) are connected with by pipeline The lateral wall of air-heater (17), hothouse (6) is equipped with microwave generator, and the upper right of hothouse (6) is fixed with passage (9), the right side of hothouse (6) is equipped with storage compartment (15), and the bottom of storage compartment (15) is equipped with discharge nozzle, it is characterised in that: dry The lower outside of room (6) is fixed with outer cylinder (19), forms guide chamber between the inner wall of outer cylinder (19) and the outer wall of hothouse (6) The inner sidewall of body, the corresponding hothouse of guide cavity bottom (6) is equipped with multiple feed inlets (25), and hothouse (6) interior lower part is solid Surely having filter plate (18), filter plate (18) is in the lower section of feed inlet (25), and the left upper portion of outer cylinder (19) is connected with feed pipe (20), Feed pipe (20) upper end is connected with material conveying box (4), and rotation is equipped with conveyer device&apos (3) in material conveying box (4), conveyer device&apos (3) left end It stretches out material conveying box (4) to be fixed with conveying motor (1), the left side top of material conveying box (4) is equipped with feed hopper (2), the top of material conveying box (4) It is provided with multiple air inlet holes (23), is connected at the top of air inlet hole (23) wind conveying pipe (21) on portion's inner wall, wind conveying pipe (21) passes through Pipeline is connected with exhaust fan (7), and the air inlet of exhaust fan (7) is connected with guide duct (16), and guide duct (16) other end connects spiral shell Capstan pipe (14), spiral coil (14) are in storage compartment (15), and spiral coil (14) other end stretches out storage compartment (15).

2. hot air combined microwave drying fluidized bed according to claim 1, it is characterised in that: the bottom of the outer cylinder (19) For funnel-form, feed inlet (25) is that high outside and low outside formula is obliquely installed.

3. hot air combined microwave drying fluidized bed according to claim 2, it is characterised in that: the air inlet hole (23) is upper It holds diameter to be greater than the stepped hole of lower end diameter, is fixed with filter screen (24) at the step of stepped hole, the screw top of stepped hole connects It is connected to connector (22), it is fixed with wind conveying pipe (21) at the top of connector (22).

4. hot air combined microwave drying fluidized bed according to claim 1, it is characterised in that: the top of the storage compartment (15) Portion is fixed with temporary room (10), and temporary room (10) bottom is fixed with connecting tube (13), and connecting tube (13) bottom is connected to storage compartment (15), the upper left-hand of temporary room (10) connects passage (9), and passage (9) is that right low left high formula is obliquely installed, temporary room (10) gas outlet, the air inlet that gas outlet passes through pipeline connection exhaust fan (7) are provided at the top of.

5. hot air combined microwave drying fluidized bed according to claim 4, it is characterised in that: the pipe of the gas outlet connection Road is equipped with drier (8).

6. hot air combined microwave drying fluidized bed according to claim 1, it is characterised in that: the microwave generator includes Microwave catheter (5) on hothouse (6) side wall is set, and microwave catheter (5) is connected with magnetron (12), magnetron (12) connection There are microwave power supply (11).