CN207815833U - A kind of screw feeding microwave fluidized-bed equipment for dry solids - Google Patents

Abstract

The utility model discloses a kind of screw feeding microwave fluidized-bed equipments for dry solids, including feeding equipment, microwave drier, screw feeding fluidized bed plant, drawing mechanism, inlet duct and PLC displays；Feeding equipment and drawing mechanism are connected by pipeline with microwave drier；Screw feeding fluidized bed plant is arranged in the inside of microwave drier, for transmitting solid particle in a screwing motion manner；Feeding equipment, microwave drier, screw feeding fluidized bed plant, drawing mechanism and inlet duct control with PLC displays connect respectively；As a result of the screw feeding fluidized bed plant for transmitting solid particle in a screwing motion manner, and cold wind is passed through by inlet duct, in order to avoid there is hot-spot in solid particle, so that solid particle is withering simultaneously with fluidized state in the environment of low temperature, the quantitatively regulating and controlling to charging rate and residence time is realized, ensure that the quality and yield of dry solids.

Description

A kind of screw feeding microwave fluidized-bed equipment for dry solids

Technical field

The utility model is related to the equipment for drying fields of low melting point, thermal sensitivity, oxidizable solid particle, more particularly to Be a kind of screw feeding microwave fluidized-bed equipment.

Background technology

Fluidized bed drying is widely used in food and chemical field, because of the mass-and heat-transfer area between gas and particle Greatly, mass-and heat-transfer is high, can be to avoid the hot-spot of product, therefore can obtain the preferable product of quality.But for porous material The drying of material, resistance to mass tranfer are larger, it usually needs longer drying time, and energy efficiency is low.

Microwave drying is micro- to absorb using the dielectric constant of water in the particle principle bigger than the dielectric constant of target product Wave energy, microwave drying has more advantages than other drying modes, such as entire product is by volume-heated, inside Similar to " pump " effect, rate of drying can be improved, reduces dissipation of energy, homogeneous heating, energy profit fast with heating speed With the features such as rate is high, product quality is high, but the disadvantage is that it is easy hot-spot.

Feed way in the prior art mostly feeds using staged, and staged charging is to utilize material in Z The mode freely declined on font distribution grid feeds, although continous way charging may be implemented, to charging rate and can not stop The time is stayed to carry out quantitatively regulating and controlling.

Therefore, the prior art still has much room for improvement and develops.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of screw feeding microwave stream for dry solids Change bed apparatus, quantitatively regulating and controlling can be carried out to charging rate and residence time.

The technical solution of the utility model is as follows：A kind of screw feeding microwave fluid bed for dry solids is set It is standby, including feeding equipment, microwave drier, screw feeding fluidized bed plant, drawing mechanism, inlet duct and PLC displays； Wherein, the feeding equipment and drawing mechanism are connected by pipeline with microwave drier；The screw feeding fluid bed Device is arranged in the inside of microwave drier, for transmitting solid particle in a manner of screw；It is the feeding equipment, micro- Wave drying device, screw feeding fluidized bed plant, drawing mechanism and inlet duct control with PLC displays connect respectively.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The feeding equipment includes Feed hopper, charging motor, charging propeller；The feed hopper be located at charging propeller top, the bottom of the feed hopper with The feed end of charging propeller is connected, and the discharge end of the charging propeller is connected to microwave drying dress by feed pipe It sets, the inner horizontal of the charging propeller is provided with a screw feed rod, one end and the charging motor phase of the screw feed rod Connection, the charging motor are connected with the control of PLC displays.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The microwave drier Including microwave drier, bell and multiple microwave generators；Each microwave generator is by stainless steel casing, magnetron and screw Interface forms, and the magnetron is located at the inside of stainless steel casing, and the screw interface is located at the bottom of stainless steel casing, described The transmitting terminal of magnetron is towards screw interface；The microwave drier is made of metal material tubbiness, and the bell is located at micro- The top of wave drying oven, the Microwave emission hole of uniformly distributed four adaptations screw interface on the bell, for being screwed into screw interface To fix microwave generator；All magnetrons are electrically connected with PLC displays, and are opened with microwave on the PLC displays It closes, the power of microwave is emitted for controlling each magnetron into microwave drier.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The microwave drier Further include the infrared temperature sensor being arranged on microwave drier inner wall, the infrared temperature sensor and PLC displays are electrical Connection, the temperature for incuding and measuring solid particle in the screw feeding fluidized bed plant.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The screw feeding fluidisation Bed apparatus includes fluid bed tank, charging motor, charging bar, charging pan and separation net；Wherein, the fluid bed tank is using nonmetallic Can-like is made in material, and the fluid bed tank tank mouth edge is provided with hanging platform, for being packed into from the bottom of microwave drier, and hangs Middle and upper part in microwave drier；The charging bar is inserted perpendicularly into charging pan described in the inside of fluid bed tank in the shape of a spiral one Body is connected on charging bar；The charging motor is connected to the top of charging bar, and controls and connect with PLC displays；The stream To change and is provided with discharge port on the side wall of bed tank lower part, the separation net is fixed on the bottom of fluid bed tank in a slanted state, and The lower end of the separation net is towards discharge port.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：Outside the fluid bed tank Bottom be provided with a deformable hose, for the Auxiliary support fluid bed tank, and convenient for the lifting of the fluid bed tank.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：In the fluid bed tank Bottom be placed with basin, for replacing charging pan, charging bar and separation net；The bottom surface of the basin and weighing sensor phase Connection, the weighing sensor are electrically connected with PLC displays.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The drawing mechanism includes Storage tank and material outlet canal, the storage tank are located at except microwave drier, and one end of the material outlet canal is connected to storage tank Top, the other end pass through microwave drier, be connected with the lower part of screw feeding fluidized bed plant, for it will dry after Solid particle imported into storage tank.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The drawing mechanism also wraps Include airway, cyclone separator, powder material collecting bag and exhaust manifolds；One end of the outtake tube and screw feeding stream The top for changing bed apparatus is connected, and the other end is connected with the lower part of cyclone separator；The powder material collecting bag is located at rotation The bottom of wind separator；It is connected at the top of the exhaust manifolds and cyclone separator.

The screw feeding microwave fluidized-bed equipment for dry solids, wherein：The inlet duct includes Air compressor, switch valve, filter, counterbalance valve, pressure gauge, spinner flowmeter, air induction conduit and air inlet distribution grid；Wherein, The air inlet distribution grid is located at the lower part in screw feeding fluidized bed plant so that enters the gas of the screw feeding fluidized bed plant Stream is uniformly distributed on its cross section；One end of the air induction conduit is connected with the bottom of screw feeding fluidized bed plant, separately One end is connected with spinner flowmeter；The spinner flowmeter is connected with counterbalance valve, the spinner flowmeter and PLC display electricity Property connection, the flow for monitoring air inlet, the counterbalance valve and PLC displays be electrically connected, the pressure for controlling air inlet；Institute It states on the pipeline that pressure gauge is arranged between counterbalance valve and spinner flowmeter, the pressure value for showing air inlet；The filter One end be connected with counterbalance valve, the other end is connected with air compressor, for filtering air in impurity；The switch valve In the pipeline being arranged between filter and air compressor, and it is electrically connected with PLC displays, the wind for controlling air inlet Speed.

A kind of screw feeding microwave fluidized-bed equipment for dry solids provided by the utility model, due to adopting With the screw feeding fluidized bed plant for transmitting solid particle in a screwing motion manner, and cold wind is passed through by inlet duct, with Exempt from solid particle and hot-spot occur so that solid particle is withering same with fluidized state in the environment of low temperature When, the quantitatively regulating and controlling to charging rate and residence time is realized, the quality and yield of dry solids is ensure that, is suitable for The drying process of the fields such as pharmacy, food, chemical industry, metallurgy solid particle, to low melting point, thermal sensitivity, oxidizable dry materials Processing has greater advantage.

Description of the drawings

Fig. 1 is that structure of the utility model for the screw feeding microwave fluidized-bed equipment embodiment of dry solids is shown It is intended to；

Fig. 2 is microwave used in screw feeding microwave fluidized-bed equipment embodiment of the utility model for dry solids The structure enlargement diagram of generator；

Fig. 3 is used used in screw feeding microwave fluidized-bed equipment embodiment of the utility model for dry solids The plan structure enlarged diagram of bell；

Figure label：Feeding equipment 100, feed hopper 110, charging motor 120, charging propeller 130, screw feed rod 131, feed pipe 132, microwave drier 200, microwave drier 210, bell 220, mounting hole 221, charging aperture 222, micro- Wave launch hole 223, microwave generator 230, stainless steel casing 231, magnetron 232 and its transmitting terminal 232a, screw interface 233, Infrared temperature sensor 240, screw feeding fluidized bed plant 300, fluid bed tank 310, hanging platform 311, discharge port 312, charging electricity Machine 320, charging bar 330, charging pan 340, separation net 350, water cooling tank 360, hose 370, weighing sensor 380, drawing mechanism 400, storage tank 410, material outlet canal 420, outtake tube 430, cyclone separator 440, powder material collecting bag 450, exhaust are led Pipe 460, inlet duct 500, air compressor 510, switch valve 520, filter 530, counterbalance valve 540, pressure gauge 550, rotor Flowmeter 560, air induction conduit 570, air inlet distribution grid 580.

Specific implementation mode

Below with reference to attached drawing, specific embodiment of the present utility model and embodiment are described in detail, it is described Specific embodiment only to explain the utility model, be not intended to limit specific embodiment of the present utility model.

As shown in Figure 1, Fig. 1 is knot of the utility model for the screw feeding microwave fluidized-bed equipment of dry solids Structure schematic diagram, the screw feeding microwave fluidized-bed equipment include feeding equipment 100, microwave drier 200, screw feeding fluidisation Bed apparatus 300, drawing mechanism 400, inlet duct 500 and PLC displays (not shown)；Wherein, 100 He of the feeding equipment Drawing mechanism 400 is connected by respective pipeline with microwave drier 200, the screw feeding fluidized bed plant 300 It is arranged in the inside of microwave drier 200, it is the feeding equipment 100, micro- for transmitting solid particle in a screwing motion manner Wave drying device 200, screw feeding fluidized bed plant 300, drawing mechanism 400 and inlet duct 500 respectively with PLC display controls System connection.

The screw feeding microwave fluidized-bed equipment of the utility model makes solid particle be done with the state of screw Dry processing, and cold wind is passed through by inlet duct, in order to avoid hot-spot occurs in solid particle, realize to charging rate and stop The quantitatively regulating and controlling of time ensure that the quality and yield of dry solids, be suitable for the fields such as pharmacy, food, chemical industry, metallurgy Solid particle drying process, to low melting point, thermal sensitivity, oxidizable solid particle be dried have greater advantage.

Specifically, the feeding equipment 100 includes feed hopper 110, charging motor 120, charging propeller 130；It is described into Hopper 110 is located at the top of charging propeller 130, and the bottom of the feed hopper 110 is connected with the feed end of charging propeller 130 Logical, the discharge end of the charging propeller 130 is connected to microwave drier 200 by feed pipe 132, and the charging promotes The inner horizontal of device 130 is provided with a screw feed rod 131, and one end of the screw feed rod 131 is connected with charging motor 120 It connects, the charging motor 120 is connected with the control of PLC displays, under the driving of the charging motor 120, passing through spiral Solid particle is continuously pushed to inside microwave drier 200 and is dried by the rotation of follower arm 131.

Specifically, the microwave drier 200 includes microwave drier 210, bell 220 and multiple microwave generators 230；Tubbiness is made using metal materials such as stainless steel, galvanized sheets in the microwave drier 210, and the bell 220 is located at microwave The top of drying oven 210.

In conjunction with shown in Fig. 2, Fig. 2 is that screw feeding microwave fluidized-bed equipment of the utility model for dry solids is real The structure enlargement diagram of microwave generator used in example is applied, each microwave generator 230 is by stainless steel casing 231, magnetron 232 and screw interface 233 form, the magnetron 232 is located at the inside of stainless steel casing 231, and the screw interface 233 is located at The bottom of stainless steel casing 231, the transmitting terminal 232a of the magnetron 232 is towards screw interface 233.

In conjunction with shown in Fig. 3, Fig. 3 is that screw feeding microwave fluidized-bed equipment of the utility model for dry solids is real The plan structure enlarged diagram for applying bell used used in example, uniformly distributed on the bell 220 there are four be adapted to screw interface 233 Microwave emission hole 223, for being screwed into screw interface 233 to fix microwave generator 230；The periphery of the bell 220 is also equal Multiple mounting holes 221 are furnished with, for being connected with the microwave drier 210 in Fig. 1 by bolt.

Specifically, the microwave power of all magnetrons 232 is 0 ~ 9W, and is electrically connected with PLC displays, and the PLC Microwave switch is carried on display, the microwave power for controlling four magnetrons 232.

Since microwave belongs to endogenous pyrogen, as a kind of special dielectric heating mode, may be implemented to add inside solid particle The effect of heat, energy can rapid continuous absorb, avoid the low problem of convection current heat transfer efficiency, capacity usage ratio is high.

It returns shown in Fig. 1, specifically, the screw feeding fluidized bed plant 300 includes fluid bed tank 310, charging motor 320, feed bar 330, charging pan 340 and separation net 350；Wherein, the fluid bed tank 310 is made of glass or plastic material Transparent or semitransparent can-like is provided with hanging platform 311 at the 310 tank mouth edge of fluid bed tank, is used for from microwave drier 210 Bottom is packed into, and hangs over the middle and upper part in microwave drier 210；The charging bar 330 is inserted perpendicularly into the interior of fluid bed tank 310 Portion.

Specifically, the charging aperture 222 that adaptation charging bar 330 passes through is provided at 220 center of bell in Fig. 3, it is described The middle and lower sections of charging bar 330 extend into the inside of microwave drier 210 across the charging aperture 222.

It returns shown in Fig. 1, it is rod-shaped that the charging bar 330 uses nonmetallic materials to be made, and the charging pan 340 uses non-gold Belong to material and helical form is made, the charging pan 340 is integrally attached on charging bar 330, and the charging motor 320 is connected to charging The top of bar 330, the charging motor 320 are connected with the control of PLC displays, are used under the driving of the charging motor 320, By feeding, bar 330 drives charging pan 340 to rotate, and solid particle is gradually transported to fluid bed from the top of fluid bed tank 310 The lower part of tank 310.

In the process, microwave generator 230 generates microwave with dry solids, and the charging rate of solid particle, And its residence time in fluid bed tank 310, under the premise of the helical angle of charging pan 340 is definite value, so that it may with by adding Material motor 320 changes the rotating speed of charging bar 330 to realize quantitative regulation and control.

In Fig. 1, it is provided with discharge port 312 on the side wall of 310 lower part of fluid bed tank, the separation net 350 is to incline Oblique state is fixed on the bottom of fluid bed tank 310, and 350 lower end of separation net under heeling condition is towards the discharge port 312, It is oriented to discharge port 312 for the solid particle on separation net 350 after dry will to be fallen on.

It is preferred that the screw feeding fluidized bed plant 300 further includes the water cooling tank of one and the control connection of PLC displays 360, temperature when working for cooling charging motor 320.

In Fig. 1, the microwave drier 200 further includes the infrared temperature being arranged on 210 inner wall of microwave drier Detector 240, which is electrically connected with PLC displays, for incuding and measuring the fluid bed tank The temperature of solid particle in 310.

As shown in Figure 1, specifically, the drawing mechanism 400 includes storage tank 410 and material outlet canal 420, the storage tank 410 are placed on except microwave drier 210, and the top of one end connection storage tank 410 of the material outlet canal 420, the other end is worn The side wall for crossing microwave drier 210 is connected with the discharge port 312 on 310 side wall of fluid bed tank, for consolidating after drying Body particle is imported into storage tank 410.

As shown in Figure 1, specifically, the inlet duct 500 includes air compressor 510, switch valve 520, filter 530, counterbalance valve 540, pressure gauge 550, spinner flowmeter 560, air induction conduit 570 and air inlet distribution grid 580；Wherein, it is described into Qi leel fabric swatch 580 is fixed on the lower part in fluid bed tank 310 so that enters the air-flow of the fluid bed tank 310 on its cross section It is uniformly distributed；One end of the air induction conduit 570 passes through the side wall of microwave drier 210, is connected with the bottom of fluid bed tank 310 Logical, the other end of the air induction conduit 570 is connected with spinner flowmeter 560；The spinner flowmeter 560 and 540 phase of counterbalance valve Connection, the spinner flowmeter 560 are electrically connected with PLC displays, the flow for monitoring air inlet, the counterbalance valve 540 and PLC Display is electrically connected, the pressure for controlling air inlet；The pressure gauge 550 is arranged in counterbalance valve 540 and spinner flowmeter 560 Between pipeline on, the pressure value for showing air inlet；One end of the filter 530 is connected with counterbalance valve 540, the filtering The other end of device 530 is connected with air compressor 510, for filtering air in impurity；The switch valve 520 is arranged in mistake In pipeline between filter 530 and air compressor 510, the switch valve 520 and PLC displays are electrically connected, for control into The wind speed of gas.

By the air compressor 510 rouse into cold wind may make that solid particle is even fluidizing in fluid bed tank 310, position In the solid particle on helical form charging pan 340 uniform pickup microwave generator 230 emit microwave energy while, by into Airway 570 imports fluid bed tank 310 and the air-flow through 580 uniform divided flows of air inlet distribution grid can also be taken away in solid particle in time The water vapour being evaporated makes solid particle be unlikely to hot-spot occur, thus removes moisture rapidly, and rate of drying is fast, And be heated evenly, it ensure that the quality and yield of dry solids.

And the use of helical form charging pan 340 and charging bar 330, solid particle can be controlled and stopped in fluid bed tank 310 The time stayed, thus according to the moisture requirement of different material system, synchronization modulation residence time and microwave power are to solid Particle is dried, while the cold wind that air compressor 510 blasts is but also the solid particle in fluid bed tank 310 is unlikely to Existing hot-spot, allows microwave continuous drying mode to become more controllable, by changing microwave power, air inlet wind speed, charging motor 120 and charging motor 320 velocity of rotation, solid particle is stopped in fluid bed tank 310 with investigating microwave continuous drying mode Stay the influence of time.

In Fig. 1, the drawing mechanism 400 further includes outtake tube 430, cyclone separator 440, powder material collecting bag 450 and exhaust manifolds 460；One end of the outtake tube 430 passes through the bell 220 in microwave drier 200, with fluid bed The top of tank 310 is connected, and the other end of the outtake tube 430 is connected with the middle and lower part of cyclone separator 440, for exporting Air-flow containing powder material in fluid bed tank 310, and whirlwind is carried out to the powder material in air by cyclone separator 440 Formula detaches；The powder material collecting bag 450 is located at the bottom of cyclone separator 440, divides through cyclone separator 440 for collecting From and the powder material that falls；The exhaust manifolds 460 are connected with the top of cyclone separator 440, for being discharged through overwinding Air after the separation of wind formula.

It is preferred that screw feeding microwave fluidized-bed equipment of the utility model for dry solids can also be taken into account Microwave intermittently drying pattern is used for specifically, the bottom outside the fluid bed tank 310 is provided with a deformable hose 370 Auxiliary support fluid bed tank 310, and convenient for the lifting of the fluid bed tank 310, to remove charging pan 340, charging bar 330 and isolation Net 350, and the bottom replacement basin (not shown) in fluid bed tank 310, the basin can be placed in air inlet distribution grid The bottom surface of 580 top, the basin is connected with weighing sensor 380, the weighing sensor 380 and PLC display electricity Property connection, in real time measure basin on solid particle weight, this state be microwave intermittently drying pattern, to be quantified In the case of fix the relation curve of particle drying degree and time.

It is used in the utility model in the preferred embodiment of the screw feeding microwave fluidized-bed equipment of dry solids, It is dry object with magnolol pill, by changing turning for microwave power, air inlet wind speed, charging motor 120 and charging motor 320 Dynamic speed, to investigate influence of the microwave continuous drying mode to magnolol pill residence time in fluid bed tank 310；Pass through again Basin and weighing sensor 380 are replaced, with the relation curve of magnolol pill degree of drying and time in the case of being quantified.

Embodiment 1：Under microwave continuous drying mode, by the 100g magnolols pill prepared by feed hopper 110 into Material, the temperature controlled in microwave drier 210 are less than 70 DEG C, and all magnetrons are set by the microwave switch on PLC displays 232 microwave power opens the valve on all pipelines to 2KW, by air inlet blast velocity control in 10m/s, by the motor 320 that feeds Rotating speed is set in 750r/min, from first pill into the time of fluidized bed tank 310, enters storage tank to a last pill 410 time, as residence time of the magnolol pill in microwave fluid bed.

Embodiment 2：Under microwave intermittently drying pattern, put after the 100g magnolol pills prepared are contained with basin In fluidized bed tank 310, the microwave power 3KW of all magnetrons 232 is set by the microwave switch on PLC displays, is opened Valve on all pipelines, will air inlet blast velocity control in 20m/s, after reaching the time to be measured, close air compressor 510 and micro- Wave switchs, and the quality for the magnolol pill being added on PLC displays is read by weighing sensor 380；Rerun air again Compressor 510 and microwave switch so repeat, you can the on-line weighing for realizing magnolol pill quality, to probe into magnolol The rate of drying curve feature of pill.

It should be understood that the above is only the preferred embodiment of the utility model only, it is not sufficient to limit this reality With novel technical solution, for those of ordinary skills, within the spirit and principles of the present invention, Ke Yigen Increased and decreased according to above description, replaced, converted or is improved, and all these increases and decreases, replacement, transformation or improved technical side Case should all belong to the protection domain of the appended claims for the utility model.

Claims (10)

1. a kind of screw feeding microwave fluidized-bed equipment for dry solids, which is characterized in that including feeding equipment, micro- Wave drying device, screw feeding fluidized bed plant, drawing mechanism, inlet duct and PLC displays；Wherein, the feeding equipment It is connected with microwave drier by pipeline with drawing mechanism；The screw feeding fluidized bed plant is arranged in microwave drying The inside of device, for transmitting solid particle in a manner of screw；The feeding equipment, microwave drier, spiral add Expect that fluidized bed plant, drawing mechanism and inlet duct are controlled with PLC displays respectively to connect.

2. the screw feeding microwave fluidized-bed equipment according to claim 1 for dry solids, it is characterised in that： The feeding equipment includes feed hopper, charging motor, charging propeller；The feed hopper is located at the top of charging propeller, institute The bottom for stating feed hopper is connected with the feed end of charging propeller, and the discharge end of the charging propeller is connected by feed pipe Passing to microwave drier, the inner horizontal of the charging propeller is provided with a screw feed rod, and the one of the screw feed rod End is connected with charging motor, and the charging motor is connected with the control of PLC displays.

3. the screw feeding microwave fluidized-bed equipment according to claim 1 for dry solids, it is characterised in that： The microwave drier includes microwave drier, bell and multiple microwave generators；Each microwave generator is by stainless steel Shell, magnetron and screw interface composition, the magnetron are located at the inside of stainless steel casing, and the screw interface is located at stainless The bottom of outer steel shell, the transmitting terminal of the magnetron is towards screw interface；The microwave drier is made of metal material bucket Shape, the bell are located at the top of microwave drier, the Microwave emission hole of uniformly distributed four adaptations screw interface on the bell, For being screwed into screw interface to fix microwave generator；All magnetrons are electrically connected with PLC displays, and the PLC is aobvious Show and carry microwave switch on device, the power of microwave is emitted for controlling each magnetron into microwave drier.

4. the screw feeding microwave fluidized-bed equipment according to claim 3 for dry solids, it is characterised in that： The microwave drier further includes the infrared temperature sensor being arranged on microwave drier inner wall, the infrared temperature sensor It is electrically connected with PLC displays, the temperature for incuding and measuring solid particle in the screw feeding fluidized bed plant.

5. the screw feeding microwave fluidized-bed equipment according to claim 1 for dry solids, it is characterised in that： The screw feeding fluidized bed plant includes fluid bed tank, charging motor, charging bar, charging pan and separation net；Wherein, the stream Change bed tank and can-like is made using nonmetallic materials, the fluid bed tank tank mouth edge is provided with hanging platform, for being filled from microwave drying The bottom set is packed into, and hangs over the middle and upper part in microwave drier；The charging bar is inserted perpendicularly into the inside institute of fluid bed tank Charging pan is stated to be integrally attached in the shape of a spiral on charging bar；The charging motor is connected to the top of charging bar, and is shown with PLC Device control connection；Discharge port is provided on the side wall of fluid bed tank lower part, the separation net is fixed in a slanted state The bottom of fluid bed tank, and the lower end of the separation net is towards discharge port.

6. the screw feeding microwave fluidized-bed equipment according to claim 5 for dry solids, it is characterised in that： Bottom outside the fluid bed tank is provided with a deformable hose, for the Auxiliary support fluid bed tank, and is convenient for the stream Change the lifting of bed tank.

7. the screw feeding microwave fluidized-bed equipment according to claim 5 for dry solids, it is characterised in that： Bottom in the fluid bed tank is placed with basin, for replacing charging pan, charging bar and separation net；The bottom of the basin Face is connected with weighing sensor, and the weighing sensor is electrically connected with PLC displays.

8. the screw feeding microwave fluidized-bed equipment according to claim 1 for dry solids, it is characterised in that： The drawing mechanism includes storage tank and material outlet canal, and the storage tank is located at except microwave drier, the material outlet canal One end connection storage tank top, the other end pass through microwave drier, be connected with the lower part of screw feeding fluidized bed plant It is logical, for the solid particle after drying to be imported into storage tank.

9. the screw feeding microwave fluidized-bed equipment according to claim 8 for dry solids, it is characterised in that： The drawing mechanism further includes outtake tube, cyclone separator, powder material collecting bag and exhaust manifolds；The outtake tube One end is connected with the top of screw feeding fluidized bed plant, and the other end is connected with the lower part of cyclone separator；The powder Material collection bag is located at the bottom of cyclone separator；It is connected at the top of the exhaust manifolds and cyclone separator.

10. the screw feeding microwave fluidized-bed equipment according to claim 1 for dry solids, feature exists In：The inlet duct includes air compressor, switch valve, filter, counterbalance valve, pressure gauge, spinner flowmeter, air induction conduit With air inlet distribution grid；Wherein, the air inlet distribution grid is located at the lower part in screw feeding fluidized bed plant so that enters the spiral The air-flow of charging fluidized bed plant is uniformly distributed on its cross section；One end of the air induction conduit is filled with screw feeding fluid bed The bottom set is connected, and the other end is connected with spinner flowmeter；The spinner flowmeter is connected with counterbalance valve, the rotor stream Gauge is electrically connected with PLC displays, the flow for monitoring air inlet, and the counterbalance valve is electrically connected with PLC displays, is used for Control the pressure of air inlet；On the pipeline that the pressure gauge is arranged between counterbalance valve and spinner flowmeter, for showing air inlet Pressure value；One end of the filter is connected with counterbalance valve, and the other end is connected with air compressor, for filtering air in Impurity；In the pipeline that the switch valve is arranged between filter and air compressor, and it is electrically connected with PLC displays, Wind speed for controlling air inlet.