CN207501560U - Microwave drying vibrated fluidized bed - Google Patents

Abstract

The utility model relates to a microwave drying vibrating fluidized bed, which comprises a bed body, a vibrating motor, and a vibrating screen. The bed body is connected to the ground through a shock-isolation spring. The microwave feeding inlets on both sides are connected, and the magnetron is connected to the air inlet of the bed body through the air-introduction pipe. The utility model adopts a vibrating fluidized bed coupled with microwave heating and drying, which has high efficiency and effectively improves the single vibrating fluidized bed in the prior art. At the same time, a wind collecting hood is fixed on the top wall of the bed body of the utility model, which can collect the high-temperature and high-humidity gas generated by heating and drying and draw it out through the induced draft fan, avoiding the accumulation of high-temperature and high-humidity gas that affects the drying effect; The utility model can draw out the heat emitted by the magnetron through the negative pressure fan, and then enter the air inlet of the bed after being heated by the preheater to blow the required dry materials, which effectively improves the energy utilization rate.

Description

Microwave drying vibrating fluidized bed

technical field

The utility model relates to a microwave drying vibration fluidized bed, which belongs to the technical field of fluidized bed drying.

Background technique

Vibrating fluidized bed is a new type of equipment that has been gradually developed and expanded in the past ten years. It is increasingly becoming the main type of drying equipment. Vibrating fluidized bed is a new type of drying equipment that applies specific vibration sources to ordinary fluidized bed dryers. The device is widely used in the new type of fluidized high-efficiency drying of granular and powdery materials. The fluidized bed dryer coupled with microwave technology has short drying time and low drying temperature, which can avoid spontaneous combustion or Explosion hazard is beneficial to realize continuous drying. For example, the patent application number 200920193648.X discloses a microwave fluidized bed equipment for powder drying, which can dry the material at a lower temperature and improve the drying quality and output of the material, but The disadvantage is that because the microwave generator is prone to heat accumulation, it needs to dissipate heat continuously, which causes a waste of thermal energy.

Utility model content

The purpose of the utility model is to provide a microwave drying vibrating fluidized bed, which can effectively utilize the energy generated by the microwave magnetron, improve the energy utilization rate, and meanwhile have good drying effect and high efficiency.

The microwave drying vibrating fluidized bed described in the utility model includes a bed body, a vibrating motor, and a vibrating screen. The bed body is connected to the ground through an isolation spring. A magnetron is arranged outside the bed body, and the magnetron is connected to the bed body through a microwave conduit. The microwave feeding inlets on both sides are connected, and the magnetron is connected to the air inlet of the bed body through the air induction pipe. There is a negative pressure fan and a preheater on the top, and a wind collecting hood is fixed on the top wall of the bed body. The air outlet is connected with an external induced draft fan.

The number of microwave feeding ports is multiple.

The bed body is provided with a feed port.

There is a sloping plate on the top wall of the feed inlet of the bed, and the sloping plate is located above the vibrating screen. The sloping plate can block and flatten the feeding and prevent the material from gathering.

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

(1) The utility model adopts a vibrating fluidized bed coupled with microwave heating and drying, which has high efficiency and effectively improves the drying effect of a single vibrating fluidized bed in the prior art. The high-temperature and high-humidity gas generated by heating and drying is collected and drawn out by the induced draft fan to avoid the accumulation of high-temperature and high-humidity gas affecting the drying effect;

(2) The utility model can use the negative pressure fan to draw the heat emitted by the magnetron through the negative pressure fan, and then enter the air inlet of the bed after being heated by the preheater to blow the required dry materials, which effectively improves the energy utilization.

Description of drawings

Fig. 1, the structural representation of an embodiment of the utility model.

In the figure: 1, feed inlet 2, bed body 3, air outlet 4, wind collecting hood 5, microwave feed inlet 6, microwave duct 7, induced draft fan 8, bag filter 9, magnetron 10, negative pressure fan 11 , vibrating screen 12, air inlet 13, shock-isolation spring 14, inclined plate 15, vibrating motor 16, induced air duct 17, preheater.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

As shown in Figure 1, the microwave drying vibrating fluidized bed described in the utility model includes a bed body 2, a vibrating motor 15, and a vibrating screen 11. The magnetron 9, the magnetron 9 is connected with the microwave feeding port 5 on both sides of the bed body 2 through the microwave conduit 6, the magnetron 9 is connected with the air inlet 12 of the bed body 2 through the air induction pipe 16, and the air induction pipe 16 is A negative pressure fan 10 and a preheater 17 are provided. An air collecting hood 4 is fixed on the inner top wall of the bed body 2. The air collecting hood 4 communicates with the air outlet 3 on the top of the bed body 2. The air outlet 3 is connected to the external bag filter 8. The air inlet of the bag filter is connected, and the air outlet of the bag filter 8 is connected with the external induced draft fan 7.

The number of microwave feeding ports 5 is multiple.

The bed body 2 is provided with a feed port 1 .

A sloping plate 14 is provided on the top wall at the feeding port 1 of the bed body 2 , and the sloping plate 14 is located above the vibrating screen 11 .

Claims (4)

1. a microwave drying vibrating fluidized bed, comprising a bed body (2), a vibrating motor (15), a vibrating screen (11), is characterized in that: the bed body (2) is connected with the ground by a shock-isolation spring (13), The bed body (2) is provided with a magnetron (9), and the magnetron (9) is connected with the microwave feeding ports (5) on both sides of the bed body (2) through a microwave conduit (6), and the magnetron (9) Connect with the air inlet (12) of the bed body (2) through the air induction pipe (16). The air induction pipe (16) is provided with a negative pressure fan (10) and a preheater (17). An air collecting hood (4) is fixed on the top wall, and the air collecting hood (4) communicates with the air outlet (3) on the top of the bed body (2), and the air outlet (3) is connected with the air inlet of the external bag filter (8) Connected, the air outlet of the bag filter (8) is connected with the external induced draft fan (7). 2. The microwave drying vibrating fluidized bed according to claim 1, characterized in that: there are multiple microwave feeding ports (5). 3. The microwave drying vibrating fluidized bed according to claim 1, characterized in that: the bed body (2) is provided with a feed port (1). 4. The microwave drying vibrating fluidized bed according to claim 3, characterized in that: the top wall of the bed body (2) feed inlet (1) place is provided with a sloping plate (14), and the sloping plate (14) is located at Above the vibrating screen (11).