CN2546828Y - Rotary continuous microwave dryer - Google Patents

Abstract

The utility model relates to a rotary continuous microwave dryer, which is composed of a microwave source [ 1 ], a waveguide pipe [ 2 ], a coupling mouth [ 3 ], a multiple-stage resonator [ 4 ], an air exhaust mouth [ 7 ], a drying tube [ 5 ] with a spiral groove [ 6 ] arranged inside and a microwave restrictor [ 8 ]; wherein, the waveguide pipe [ 2 ] is arranged between the microwave source [ 1 ] and the resonator [ 4 ]; the waveguide pipe [ 2 ] is connected with the resonator [ 4 ] through the coupling mouth [ 3 ]; the drying tube [ 5 ] is arranged inside the multiple-stage resonator [ 4 ]; the air exhaust mouth [ 7 ] is arranged on the top of the multiple-stage resonator [ 4 ]. The material makes movement along the spiral groove to the direction of the discharging mouth acted on by the gravity to achieve the purpose of dynamic continuous drying. Compared with the common dryer, the utility model has the advantages of high drying efficiency, fast speed, even drying of the material and energy saving. Thus the utility model is particularly applicable for the preparation of the catalyst in the field of chemical engineering and petrochemical.

Description

A kind of swinging continuous microwave drying device

The utility model relates to the dry run of chemical industry, petrochemical industry, pharmacy and other field solid material, the dry run during particularly the petrochemical industry pellet type catalyst is produced.

In the dry run of material, each cellular construction and mode of operation all have very big influence to the drying efficiency and the effect of material, especially in the production process of chemical industry and petrochemical field catalyst, if active component skewness in the catalyst is to the physico-chemical property and the very big influence of catalytic performance generation of catalyst.Wherein the dry run of catalyst is to influence the important link that active component distributes, a drying efficiency height, effective and drier with higher automaticity is to enhancing productivity and guaranteeing that catalyst prod quality aspect has important effect.

Mostly be the static dryer of box-type at present at the employed drier in Catalyst Production field.The shortcoming of this drier is that drying time is long, is generally 6～24 hours, and dry materials is inhomogeneous, usually shows as in the material surface drying to wet, and is intermittent operation, and labour intensity is big, inefficiency.When relating to catalyst preparation process, often cause wherein active metal component different and grow drying time and move, make the metal component skewness, influence the physicochemical property and the catalytic performance of catalyst owing to dry environment.Chinese patent ZL91209616 discloses a kind of continuous dryer, but because material is static relatively in dry run, still has shortcomings such as material length drying time, weak effect; ZL99225205.9 discloses a kind of rotary dryer, and drying efficiency and effect are all improved, but because this drier adopts traditional heat transfer type, efficient is low, needs the time long.In addition, the material that different degree of dryings take place easily mixes mutually, influences drying effect.

The purpose of this utility model just is to overcome the deficiency of present product, provide a kind of drying time short, efficient is high, effective, swinging continuous microwave drying device that automaticity is high.

The utility model discloses a kind of swinging continuous microwave drying device.This drier mainly has spirality by microwave source, waveguide, coupling aperture, multistage resonant chamber, exhaust outlet, inside and colludes the drying of groove, motor and decelerator and constitute, waveguide places between the microwave source resonant cavity, and waveguide is connected with resonator by coupling aperture.Drying rotates around its axle center under the drive of motor and decelerator in the horizontal direction, and material colludes groove in the effect lower edge of gravity spirality and moves to the discharging opening direction, reaches the purpose of dynamic continuous drying.

Accompanying drawing is a generalized section of the present utility model, further specifies structure of the present utility model and working method below in conjunction with accompanying drawing.

The utility model mainly has spirality by microwave source 1, waveguide 2, coupling aperture 3, multistage resonant chamber 4, exhaust outlet 7, inside and colludes the drying 5 of groove 6 and constitute, waveguide 2 places between microwave source 1 resonant cavity 4, waveguide 2 is connected with resonator 4 by coupling aperture 3, drying 5 places 4 inside, multistage resonant chamber, and exhaust outlet 7 places 4 tops, multistage resonant chamber.

For preventing the microwave leakage, microwave TVS 8 can be housed at the two ends of resonator 4.

Resonator 4 is the multistage resonant chamber, and every grade of microwave source 1 is controlled separately, can set the temperature of every grade of resonator according to the specific requirement of the material that is dried.

The shape of resonator 4 cross sections can make any suitable shape, as circle, ellipse or polygon, is preferably circle.The two ends of resonator 4 are opening, and exhaust outlet 7 places the top of resonator 4, and its quantity and size are provided with as required.

Drying is cylindrical (cross section is for circular), horizontal positioned, and under the drive of motor and decelerator, can rotate according to certain orientation around its axis.Have spirality on the drying inwall and collude groove, the degree of depth and the density of colluding groove can design as required, and the distance that the degree of depth of preferably colluding groove is 5～50 centimetres, face two grooves mutually is 5～100 centimetres.Rotary speed also can be adjusted according to the requirement of dried material, for promoting the discharge of steam, can have a plurality of apertures on the dry barrel, pore size is determined according to dried material, so that ten dry materials are spilt to easily, the drying material can use any resistant to elevated temperatures nonmetallic materials, as glass, pottery and plastics etc., is preferably high-temperature resistance plastice.

Concrete operations are to need dry material to enter drying continuously from charging aperture one end of drying, drying rotates according to certain orientation under the drive of motor, in drying, the material that is dried colludes under the effect of groove at gravity and spiral, move to drying discharging opening one end, the material that drying finishes draws off automatically from discharging opening, realizes the purpose of continued operation.

In the dry run of preparation catalyst, use this drier, owing to be under dynamic condition, to operate, and used the microwave different as thermal source with traditional heating mode, make the catalyst rate of drying fast, the time significantly shortens, and is generally 0.5～2 hour, dry materials is even, has guaranteed the even distribution of active component in the catalyst.In addition, can be according to the specific requirement of the material that is dried, the rotary speed of the degree of depth, density and adjustment drying of groove is colluded in design, has that the flexible operation performance is good, the automaticity advantages of higher, has reduced catalyst production cost thereby operating efficiency is greatly enhanced.Microwave is as thermal source, directly acts on the material that is dried because this mode of heating is a form by microwave, compares in traditional mode of heating that passes through the medium transmission, has the higher thermal efficiency, saved the valuable energy, compared with the traditional drying device, energy-conservation more than 50%.

The utility model is novel, and is reasonable in design, simple in structure, but widespread production and be applied to drying, the especially production process of petrochemical industry pellet type catalyst of various solid materials.

Claims (6)

1. one kind is turned round the continuous microwave drying device, it is characterized in that this drier has spirality by microwave source [1], waveguide [2], coupling aperture [3], multistage resonant chamber [4], exhaust outlet [7], inside and colludes the drying of groove [6] [5] formation, wherein waveguide [2] places between microwave source [1] resonant cavity [4], waveguide [2] is connected with resonator [4] by coupling aperture [3], drying [5] places inside, multistage resonant chamber [4], and exhaust outlet [7] places top, multistage resonant chamber [4].

2. according to the described drier of claim 1, it is characterized in that microwave TVS [8] is equipped with at the two ends of resonator.

3. according to the described drier of claim 1, it is characterized in that resonator [4] is the multistage resonant chamber.

4. according to the described drier of claim 1, it is characterized in that drying is cylindrical, cross section is circular.

5. according to the described drier of claim 1, the distance of it is characterized in that said spirality to collude the degree of depth of groove be 5～50 centimetres, facing two grooves mutually is 5～100 centimetres.

6. according to the described drier of claim 1, it is characterized in that having aperture on the said dry barrel.

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