KR20180116220A - Energy saving and environmental protection integrated multi-stage microwave fluidized bed drying system and treatment method - Google Patents

Energy saving and environmental protection integrated multi-stage microwave fluidized bed drying system and treatment method Download PDF

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KR20180116220A
KR20180116220A KR1020187010674A KR20187010674A KR20180116220A KR 20180116220 A KR20180116220 A KR 20180116220A KR 1020187010674 A KR1020187010674 A KR 1020187010674A KR 20187010674 A KR20187010674 A KR 20187010674A KR 20180116220 A KR20180116220 A KR 20180116220A
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fluidized
microwave
bed dryer
heat exchange
bed
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KR1020187010674A
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Korean (ko)
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KR102009777B1 (en
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충디엔 쓰
광쥔 리우
징 저우
홍 한
지썬 리
위홍 순
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지닝 유니버시티
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Priority claimed from CN201720330563.6U external-priority patent/CN206600990U/en
Priority claimed from CN201710205992.5A external-priority patent/CN106813458A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/004—Heating arrangements using waste heat recovered from dryer exhaust gases by compressing and condensing vapour in exhaust gases, i.e. using an open cycle heat pump system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed

Abstract

The present invention relates to an energy saving and environmental protection integrated multi-stage microwave fluidized-bed drying system, comprising a fluidized-bed dryer, wherein a multi-stage conveyor belt and a uniform distribution plate are installed in the fluidized- It is possible to effectively prevent the accumulation of microwave thermal energy and to improve the drying effect when the multi-stage microwave is used as a heat source for heating, And the heat energy in the material can be recycled. Thus, the waste gas generated after the material is dried through the fluidized-bed dryer can be condensed and discharged into the wastewater treatment tank, Gas can be treated, It is possible to solve the problems such as contamination of waste gas resulting from the environment in the fluidized-bed drying in the prior art. The present invention also provides a method of treating an energy saving and environmental protection integral multi-stage microwave fluidized-bed drying system.

Figure P1020187010674

Description

Energy saving and environmental protection integrated multi-stage microwave fluidized bed drying system and treatment method

The present invention belongs to the field of drying equipment, and more particularly to an energy saving and environmental protection integrated multi-stage microwave fluidized-bed drying system and method.

Fluid bed drying equipment is currently used in dry cereals, crops and lignite. Since the microwave heating technique differs from the general drying heating method, in the process of drying using the microwave flow phase, the moisture is always heated by the microwave more than the other materials. This is because the water molecule is a typical polar molecule and the dielectric loss factor is much higher than that of the general material. Because the dielectric constant of other components in the material is much smaller than the dielectric constant of water molecules, microwave absorption is weaker than water molecules, and water molecules can absorb large amounts of microwave energy and convert to latent heat. This unique heating principle increases the dewatering efficiency and improves the drying effect by selectively heating the water without first heating the material as a whole.

CN201410261215.9 discloses a microwave multi-stage fluidized-bed drying apparatus and method of drying that adjusts the tilt angle of a multi-stage distribution plate to control the time the material stays in the fluidized-bed drying reactor. The apparatus and method are suitable for drying materials having different moisture contents and can maximize the use of microwave energy by changing microwave drying efficiency at the inlet of the multistage distribution plate. Disadvantages of the present invention are as follows. It is possible to control the speed of the material by using sloped diaphragms to block the material, but these materials are not easy to accumulate and difficult to adjust because of their difficulty in adjusting the material, and the heat generated by the used magnetron Is directly diverted into the air, so that a large amount of energy is wasted.

CN201410274838.X discloses a microwave fluidized-bed hot air cavity drying experiment device suitable for cavity drying of hot air in the microwave flow of particles, sheets or strip-shaped material (e.g. tobacco) in a porous medium. In the drying process, microwave energy stimulates polar molecules with high molecular vibrations, which can change directions to cause a specific heat effect and accelerate the drying process, so that the active ingredients are mostly glycosides, terpinactones and volatile oils such as cigarettes ) To ensure the quality of the dried material. However, the present invention is disadvantageous in that, when drying a substance such as a cigarette, the waste gas produced after drying is directly discharged to the outside. Tobacco contains a large amount of harmful substances such as nicotine, and the exhausted gas may not only cause secondary pollution to the environment but also harm the human body.

Therefore, in order to solve the above problems, there is a need for a microwave-fluid-phase drying system which is excellent in drying effect and can realize energy saving and environmental protection.

It is an object of the present invention to provide an energy saving and environmental protection integral multi-stage type air conditioner capable of drying materials at a high speed and more safely, reducing resource waste by recycling energy, and preventing environmental pollution due to organic volatiles in the waste gas. And to provide a fluidized bed drying system. The present invention also provides a method of processing the system simultaneously.

The energy saving and environmental protection integrated energy saving and environmental protection integrated multi-stage microwave fluidized bed drying system includes a fluidized-bed dryer, a material supply port is provided on the upper side of the fluidized-bed dryer, a material outlet is provided on the lower side, A gas outlet is provided at the top, the gas outlet is connected to the gas inlet of the cyclone separator, and a multi-stage conveyor belt is provided between the material outlet inside the fluidized-bed dryer and the material feed port to transport the material in S-shape A microwave generator 1 is installed on the sidewall of the fluidized-bed dryer at the bottom of each stage material feed port of the multistage conveyor belt, the gas outlet of the cyclone separator is connected to the inlet of the heat exchange condenser, and the heat exchange coil 1 is installed inside the heat exchange condenser And the suction of the heat exchange coil 1 The other end of the heat exchange coil is connected to the suction port of the negative pressure blower 1, the gas outlet of the negative pressure blower 1 is connected to the inside of the fluidized-bed dryer, and the outlet of the heat exchange condenser is connected to the outside of the waste water treatment tank A microwave generator 2 is installed on the upper side of the wastewater treatment tank, a hydrogen peroxide solution addition groove is provided on the upper side of one end of the water injection hole of the wastewater treatment tank, and the upper and lower walls of the wastewater treatment tank are staggered An ozone distribution pipe is provided at the bottom of the wastewater treatment tank and a lower end of the ozone distribution pipe is connected to an ozone gas source provided outside the wastewater treatment tank.

A material supply hopper is provided on the material supply port of the fluid-bed dryer, and a staggered distribution plate is provided in the material supply hopper. The stop plate lowers the material feed rate and prevents heat from escaping from the material feed port.

The upper part of the stopper swash plate is fixed on the inner wall of the fluidized-bed drying part outside the material supply port, and the lower part of the stopper swash plate is installed on the upper part of the multi-stage conveyor belt so that the material is directly separated To prevent scattering; At the top of the fluidized-bed dryer, a plurality of adjustable, uniformly distributed plates are provided to allow more uniform drying by adjusting the thickness of the material.

The microwave generator 1 includes a microwave pipe 1 installed on a sidewall of a fluidized-bed dryer located below a feed port of a multi-stage conveyor belt. The microwave pipe 1 is connected to a magnetron 1, the magnetron 1 is connected to a microwave power source, The lower side of the magnetron 1 is connected to the negative pressure blower 2, and the blower of the negative pressure blower 2 is connected to the material supply hopper. Reduces waste of energy by recycling the heat energy generated by the microwave generator.

The material outlet of the fluidized-bed dryer is connected to the upper part of the material storage tank through a material transfer pipe, the outlet of the cyclone separator is connected to the upper part of the material storage tank, the heat storage coil 2 is installed inside the material storage tank, The gas inlet 2 of the heat exchange coil 2 extends to the material storage tank, the other end of the heat exchange coil 2 and the inlet of the negative pressure blower 1 are connected to each other, and a material outlet is provided at the bottom of the material storage tank. In addition, heat energy of waste gas is directly recycled.

The microwave generator includes a microwave pipe 2 installed at the top of a wastewater treatment tank, the microwave pipe 2 is connected to a magnetron 2, the magnetron 2 is connected to a microwave power source, and one side of the magnetron 2 is connected to a negative pressure blower 1 To reduce waste of energy by recycling the heat energy generated by the microwave generator; An exhaust pipe is installed at the bottom of the wastewater treatment tank.

Two or more funnel-type baffles are provided below the inlet of the heat-exchange condenser, and the gas outlets of the funnel-type baffle are staggered. By reducing the entry / exit speed of the waste gas and increasing the heat exchange time, the heat energy is more thoroughly recovered.

A through hole for vertically moving the uniform distribution plate is provided on the top wall of the microwave dryer. A rack is provided at one side of the uniform distribution plate. A gear engaged with the rack is installed at one side of the through hole, The gear is connected to a top wall of a microwave dryer through a rotating shaft, a control handle is provided at one end of the rotating shaft, and a window for observing the thickness of the material is provided on an upper side of the fluidized- This makes it possible to more conveniently control the thickness of the material.

A method of treating an energy saving and environmental protection integrated multi-stage microwave fluidized-bed drying system,

When the material having a moisture content of 30 to 60% is transferred to the material feed hopper, the material enters the fluidized-bed dryer through the barrier plate, operates the magnetron 1, and then provides a dry heat source using microwaves. The microwave power is 5 to 10 kW Controlling the heating temperature in the fluidized-bed dryer to 120 to 160 캜;

The multistage conveyor belt is operated, the speed of each stage is controlled to 0.2 to 0.5 m / s, the air is guided to the material feeding hopper for starting the material after the vacuum blower 2 is operated, and the wind speed is 0.5 to 0.8 m / s , And the negative pressure blower 1 provides a source of airflow to the fluidized-bed dryer, the air velocity at which the air enters is controlled at 0.8 to 1.5 m / s, the temperature is controlled at 40 to 60 ° C, Adjusting the thickness to 8 to 12 mm and controlling the moisture content after drying of the material to be 10 to 15%, so that the material enters the material storage tank through the material transfer pipe after drying;

The high temperature and high humidity gas produced in the fluidized-bed dryer is separated into gas and solid in the cyclone separator, the separated powder enters the material storage tank, the separated gas enters the heat exchange condenser, condenses through the heat exchange coil 1, The concentration of the hydrogen peroxide solution is adjusted to 30 to 50% through the hydrogen peroxide solution addition groove, the intake concentration of the ozone gas source is adjusted to 0 to 30 mg / L, the magnetron 2 is operated, and the concentration of the hydrogen peroxide solution in the wastewater treatment tank The microwave heating treatment of the wastewater causes the treated wastewater to be discharged through the discharge pipe;

Heat in the material storage tank through the heat exchange coil 2, heat exchanged through the heat exchange coil 1 in the heat exchange condenser, and heat emitted from the magnetron 2 all enter the fluidized-bed dryer through the negative pressure blower 1 to provide a hot air source And step 4 of implementing energy recycling.

In the step 3, the time for the wastewater to flow in the wastewater treatment tank is 3 to 5 minutes.

The present invention has the following advantageous effects over the prior art.

(1) The present invention prevents materials from accumulating in the fluidized bed by using a multi-stage conveyor belt and a uniform distribution plate, thereby allowing the material to flow during processing, thereby effectively preventing the accumulation of microwave thermal energy and improving the drying effect have.

(2) The present invention recycles thermal energy in waste gas, magnetron and material, so that waste of energy can be minimized.

(3) The present invention can treat the waste gas containing organic volatiles generated during drying, and solve problems such as contamination of waste gas resulting from the environment in the fluidized-bed drying in the prior art.

1 is a structural explanatory view of the present invention.

Hereinafter, the present invention will be further described by combining the following examples.

Example 1

The energy saving and environmental protection integral multi-stage microwave fluidized-bed drying system shown in Fig. 1 includes a fluidized-bed dryer 1, a material supply port is provided on the upper side of the fluidized-bed dryer 1, A gas outlet 7 is provided at the top of the fluidized-bed dryer 1 and the gas outlet 7 is connected to the gas inlet of the cyclone separator 9, A multistage conveyor belt 6 for conveying the material in the form of an S-shaped material is provided between the discharge port and the material supply port. On the side wall of the fluidized-bed dryer 1 below the respective stage material feed ports of the multistage conveyor belt 6, The gas outlet of the cyclone separator 9 is connected to the inlet of the heat exchange condenser 11 and the heat exchange coil 1 22 is installed inside the heat exchange condenser 11, The inlet port 1 21 of the ring coil 1 22 is connected to the outside of the heat exchange condenser 11 and the other end of the heat exchange coil is connected to the inlet port of the negative pressure blower 1 23, The outlet of the heat exchange condenser 11 is connected to the water inlet 24 of the wastewater treatment tank 15 and the microwave generator 2 is installed on the upper side of the wastewater treatment tank 15 And a hydrogen peroxide solution addition groove 20 is provided on the upper side of one end of the water inlet 24 of the wastewater treatment tank 15. A shield plate 16 distributed staggeredly on both upper and lower walls in the wastewater treatment tank 15 An ozone distribution pipe 18 is provided at the bottom of the wastewater treatment tank 15 and an ozone gas source 19 provided outside the wastewater treatment tank 15 .

A material supply hopper 3 is provided on the material supply port of the fluidized-bed drier 1 and a staggered plate 4 distributed staggeredly is provided in the material supply hopper 3.

A stopper swash plate 2 is provided below the material supply port of the fluidized-bed dryer 1 and an upper portion of the stopper swash plate 2 is fixed on the fluidized-bed drying inner wall outside the material supply port. A lower portion of the stopper swash plate 2 A multi-stage conveyor belt (6) is provided on the upper side, and a plurality of adjustable uniform distribution plates (5) are provided at the top of the fluidized-bed dryer (1).

The microwave generator 1 includes a microwave pipe 1 32 installed on a sidewall of the fluidized-bed dryer 1 under each stage material feed port of the multi-stage conveyor belt 6, and the microwave pipe 1 32 includes a magnetron 1 31 The magnetron 1 31 is connected to the microwave power source 12 and the lower side of the magnetron 1 31 is connected to the negative pressure blower 2 30 and the air outlet of the negative pressure blower 2 30 is connected to the material supply hopper 2. [ (3).

The material outlet of the fluidized-bed dryer 1 is connected to the upper part of the material storage tank 27 via a material transfer pipe 29 and the outlet of the cyclone separator 9 is connected to the upper part of the material storage tank 27 , And a heat exchange coil 2 (25) is installed inside the material storage tank 27. The gas inlet port 28 of the heat exchange coil 2 25 extends to the material storage tank 27. The other end of the heat exchange coil 2 25 and the inlet port of the negative pressure blower 1 23 are connected to each other, 27, a material discharge pipe 26 is provided.

The microwave generator 2 includes a microwave pipe 2 14 disposed at the top of the wastewater treatment tank 15 and the microwave pipe 2 14 connected to the magnetron 2 13 and the magnetron 2 13 connected to the microwave power source 12 One side of the magnetron 2 13 is connected to the inlet port of the negative pressure blower 1 23 through a pipe and a discharge pipe 17 is installed below the waste water treatment tank 15.

Two or more funnel-shaped baffles 10 are provided below the inlet of the heat exchange condenser 11, and the gas discharge openings of the funnel-type baffle 10 are staggered.

On the top wall of the fluid-bed dryer 1, a through hole for vertically moving the uniform distribution plate 5 is provided. A rack is provided on one side of the uniform distribution plate 5, and a rack is provided at one side of the through- And the gear is connected to the top wall of the microwave dryer through a rotating shaft, and an adjusting handle is provided at one end of the rotating shaft. A window for observing the thickness of the material is provided on the upper side of the fluidized- (8).

Examples 2 to 4 are methods of treating an energy saving and environmental protection integrated multi-stage microwave fluidized bed drying system.

Example 2

When the garlic having a moisture content of 30% is transferred to the material feed hopper 3, the material enters the fluidized-bed dryer 1 through the stopper plate 4. After the magnetron 1 (31) is operated, a dry heat source is provided using a microwave, the microwave power is controlled to 5 kW, the heating temperature in the fluidized-bed dryer (1) is controlled to 120 ° C; The multistage conveyor belt 6 is operated and the electric speed of each stage is controlled to 0.2 m / s. After the negative pressure blower 2 (30) is operated, air is guided to the material supply hopper 3 for preheating the material, And the negative pressure blower 1 (23) provides the air source to the fluidized-bed dryer (1), the air velocity at which the air enters is controlled at 0.8 m / s, the temperature is controlled at 40 ° C, ) Is controlled so that the material thickness of each stage conveyor belt is adjusted to 12 mm and the moisture content after the material is dried is controlled to be 12%, the material after drying is conveyed through the material transfer pipe 29 to the material storage tank 27 ); Temperature and high humidity gas generated in the fluidized-bed dryer 1 is separated into gas and solid in the cyclone separator 9, the separated powder enters the material storage tank 27, and the separated gas flows into the heat exchange condenser 11 After the liquid is condensed through the heat exchange coil 1 22, the liquid is introduced into the wastewater treatment tank 15 and the concentration of the hydrogen peroxide solution is adjusted to 40% through the hydrogen peroxide solution addition groove 20, Is adjusted to 15 mg / L, and the time for the wastewater to flow in the wastewater treatment tank (15) is adjusted to 4 minutes; The magnetron 2 (13) is operated to heat the wastewater in the wastewater treatment tank (15) by microwave heating, and the treated wastewater is discharged through the exhaust pipe (17); The heat exchanged in the material storage tank 27 through the heat exchange coil 2 25 and the heat exchanged through the heat exchange coil 1 22 in the heat exchange condenser 11 and the heat emitted from the magnetron 2 13 And enters the fluidized-bed dryer 1 through the negative-pressure blower 1 (23) to provide a hot air source to realize energy recycling.

Table 1 shows data of water quality indicators measured before and after the waste gas generated in this embodiment is treated through the wastewater treatment tank 15 after being condensed.

Figure pct00001

Example 3

When wheat having a moisture content of 60% is transferred to the material feed hopper 3, the material enters the fluidized-bed dryer 1 via the stopper plate 4. After operating the magnetron 1 (31), a dry heat source is provided using a microwave, the microwave power is controlled to 10 kW, and the heating temperature in the fluidized-bed dryer (1) is controlled to 160 캜. The multistage conveyor belt 6 is operated and the electric speed of each stage is controlled to 0.2 m / s. After the negative pressure blower 2 (30) is operated, air is guided to the material supply hopper 3 for preheating the material, Is controlled to 0.8 m / s. The negative pressure blower 1 (23) provides the air source to the fluidized-bed dryer (1) and controls the air velocity at which the air enters at 1.5 m / s and the temperature at 60 ° C. When the window 8 is observed to adjust the material thickness of each stage conveyor belt to 8 mm and the moisture content after drying the material is controlled to be 10%, the material after drying is conveyed through the material transfer pipe 29 Enters the tank 27. Temperature and high humidity gas generated in the fluidized-bed dryer 1 is separated into gas and solid in the cyclone separator 9, the separated powder enters the material storage tank 27, and the separated gas flows into the heat exchange condenser 11 Exchanged by the heat exchange coil 1 (22), and then flows into the wastewater treatment tank 15 in a liquid state. Since the wheat belongs to cereal crops, the ozone gas source 19 can be blocked due to the small organic component contained in the dried wastewater. Therefore, the concentration of the hydrogen peroxide solution is adjusted to 30% through the hydrogen peroxide addition groove 20, The time of flow in the wastewater treatment tank 15 is adjusted to 3 minutes. The magnetron 2 (13) is operated to heat the wastewater in the wastewater treatment tank (15) by microwave heating, and the treated wastewater is discharged through the discharge pipe (17). The heat exchanged in the material storage tank 27 through the heat exchange coil 2 25 and the heat exchanged through the heat exchange coil 1 22 in the heat exchange condenser 11 and the heat emitted from the magnetron 2 13 And enters the fluidized-bed dryer 1 through the negative-pressure blower 1 (23) to provide a hot air source to realize energy recycling.

In this embodiment, wheat, which is a grain crop, was used as a drying material. Of course, when drying other cereal crops such as soybeans and corn, the process steps of this embodiment should be followed only with different parameters of each step. The organic volatile components emitted from the drying process of cereal crops are relatively small, and waste water treatment is not required in subsequent procedures.

Example 4

When the lignite particles having a moisture content of 35% are transferred to the material supply hopper 3, the material enters the fluidized-bed dryer 1 through the blocking plate 4. After operating the magnetron 1 (31), a dry heat source is provided using a microwave, the microwave power is controlled to 8 kW, and the heating temperature in the fluidized-bed dryer (1) is controlled to 130 캜. The multistage conveyor belt 6 is operated and the electric speed of each stage is controlled to 0.3 m / s. After the negative pressure blower 2 (30) is operated, air is guided to the material feeding hopper 3 for preheating the material, Is controlled to 0.6 m / s. The negative pressure blower 1 (23) provides the air source to the fluidized-bed dryer (1) and controls the air velocity at which the air enters at 1.3 m / s and the temperature at 50 ° C. When the window 8 is observed so that the thickness of the material of each stage conveyor belt is adjusted to 10 mm and the moisture content after the material is dried is controlled to be 15%, the material after drying is conveyed through the material transfer pipe 29 Enters the tank 27. Temperature and high humidity gas generated in the fluidized-bed dryer 1 is separated into gas and solid in the cyclone separator 9, the separated powder enters the material storage tank 27, and the separated gas flows into the heat exchange condenser 11 Exchanged by the heat exchange coil 1 (22), and then flows into the wastewater treatment tank 15 in a liquid state. The concentration of the hydrogen peroxide solution is adjusted to 50% through the hydrogen peroxide solution addition groove 20, the intake concentration of the ozone gas source 19 is adjusted to 30 mg / L, and the time for the wastewater to flow in the wastewater treatment tank 15 Adjust to 5 minutes. The magnetron 2 (13) is operated to heat the wastewater in the wastewater treatment tank (15) by microwave heating, and the treated wastewater is discharged through the discharge pipe (17). The heat exchanged in the material storage tank 27 through the heat exchange coil 2 25 and the heat exchanged through the heat exchange coil 1 22 in the heat exchange condenser 11 and the heat emitted from the magnetron 2 13 And enters the fluidized-bed dryer 1 through the negative-pressure blower 1 (23) to provide a hot air source to realize energy recycling.

In this embodiment, the measured data of the water quality indicators before and after the produced waste gas is condensed and processed through the wastewater treatment tank 15 are shown in Table 2.

Figure pct00002

1: Fluid bed dryer 2: Stopper swash plate 3: Feed hopper 4: Stop plate 5: Uniform distribution plate 6: Multistage conveyor belt 7: Gas outlet 8: Window 9: Cyclone separator 10: Funnel And the ozone distribution pipe is connected to the ozone gas discharge pipe and the ozone gas discharge pipe is connected to the ozone gas discharge pipe. And a material storage tank for storing the material in the material reservoir tank, wherein the material storage tank is disposed in the material storage tank. : Inlet port 2, 29: material transfer pipe, 30: negative pressure blower 2, 31: magnetron 1, 32: microwave pipe 1

Claims (10)

A material outlet is provided on the upper side of the fluidized-bed dryer 1, a material outlet is provided on the lower side, a gas outlet 7 is provided on the top of the fluidized-bed dryer 1, And the gas outlet 7 is connected to the gas inlet of the cyclone separator 9 and between the material outlet of the inside of the fluidized-bed dryer 1 and the material supply port, a multistage conveyor belt A microwave generator 1 is installed on a sidewall of the fluidized-bed dryer 1 under the respective stage material feed ports of the multi-stage conveyor belt 6, and the gas outlet of the cyclone separator 9 is connected to a heat- (1) 21 of the heat exchange coil 1 (22) is connected to the outside of the heat exchange condenser (11), and the heat exchange coil Heat exchange nose The gas outlet of the negative pressure blower 1 (23) communicates with the interior of the fluidized-bed dryer (1), and the outlet of the heat exchange condenser (11) is connected to the waste water treatment tank (15) The microwave generator 2 is provided on the upper side of the wastewater treatment tank 15 and the hydrogen peroxide solution addition groove 20 is provided on the upper side of one end of the water inlet 24 of the wastewater treatment tank 15, A shutoff plate 16 distributed in a staggered manner is provided on both upper and lower walls of the wastewater treatment tank 15 and an ozone distribution pipe 18 is installed on the bottom of the wastewater treatment tank 15 , And the lower end of the ozone distribution pipe (18) is connected to an ozone gas source (19) provided outside the wastewater treatment tank (15). The method according to claim 1,
Characterized in that a material supply hopper (3) is provided on the material supply port side of the fluid-bed dryer (1), and a stiffening plate (4) staggeredly distributed in the material supply hopper Conservation and Environmental Protection Integrated Multistage Microwave Fluidized Bed Drying System. The method according to claim 1,
A stopper swash plate 2 is provided below the material supply port of the fluidized-bed dryer 1, and the upper portion of the stopper swash plate 2 is fixed on the fluidized-bed drying inner wall outside the material supply port. The stopper swash plate 2 ) Is installed on the upper part of the multi-stage conveyor belt (6), and a plurality of adjustable uniform distribution plates (5) are installed on the top of the fluid-bed dryer (1) Microwave flow phase drying system. 3. The method of claim 2,
The microwave generator 1 includes a microwave pipe 1 32 installed on a sidewall of the fluidized-bed dryer 1 under each of the material feed ports of the multi-stage conveyor belt 6, and the microwave pipe 1 32 is connected to the magnetron 1 The magnetron 31 is connected to the microwave power source 12 and the lower side of the magnetron 31 is connected to the negative pressure blower 30 and the blower 30 of the negative pressure blower 30 Is connected in the material feed hopper (3). The energy saving and environmental protection integrated multi-stage microwave fluidized-bed drying system. The method according to claim 1,
The material outlet of the fluidized-bed dryer 1 is connected to the upper part of the material storage tank 27 via a material transfer pipe 29 and the outlet of the cyclone separator 9 is connected to the upper part of the material storage tank 27 A heat exchange coil 2 25 is installed inside the material storage tank 27 and a gas inlet 2 28 of the heat exchange coil 2 25 extends to a material storage tank 27, (23) is connected to the other end of the material storage tank (27), and the material discharge port (26) is provided under the material storage tank (27) Microwave flow phase drying system. The method according to claim 1,
The microwave generator 2 includes a microwave pipe 2 14 disposed at the top of a wastewater treatment tank 15 and the microwave pipe 2 14 connected to a magnetron 2 13, One side of the magnetron 2 13 is connected to the inlet port of the negative pressure blower 1 23 through a pipe and the discharge pipe 17 is installed in the lower part of the wastewater treatment tank 15 Energy saving and environmental protection integrated multi-stage microwave fluidized-bed drying system. The method according to claim 1,
Characterized in that two or more funnel-type baffles (10) are installed on the lower side of the inlet of the heat exchange condenser (11), and the gas discharge ports of the funnel type baffle (10) are staggered. Microwave flow phase drying system. The method of claim 3,
A through hole for vertically moving the uniform distribution plate 5 is provided on the top wall of the microwave dryer 1. A rack is provided on one side of the uniform distribution plate 5, And a gear engaging with the rack is provided. The gear is connected to the top wall of the microwave dryer through a rotary shaft, and an adjusting knob is provided at one end of the rotary shaft. The upper side of the fluidized- And a window (8) for observing the surface of the substrate (1). When the material having a moisture content of 30 to 60% is transferred to the material feed hopper 3, the material enters the fluidized-bed dryer 1 via the stop plate 4, the magnetron 1 (31) is activated, Providing a dry heat source, controlling the microwave power to 5 to 10 kW, and controlling the heating temperature in the fluidized-bed dryer 1 from 120 to 160 캜;
The multistage conveyor belt 6 is operated and the electric speed of each stage is controlled to 0.2 to 0.5 m / s. After the negative pressure blower 2 (30) is operated, air is guided to the material supply hopper 3 for preheating the material , The air speed is controlled to 0.5 to 0.8 m / s, and the negative pressure blower 1 (23) supplies the air flow source to the fluidized-bed drier 1, the air velocity at which the air enters is 0.8 to 1.5 m / s, And the window 8 is observed to adjust the material thickness of each step conveyor belt to 8 to 12 mm and the moisture content after the material is dried to 10 to 15% (2) entering the material storage tank (27) through the material transfer pipe (29);
Temperature and high-humidity gas generated in the fluid-bed dryer 1 is separated into gas and solid in the cyclone separator 9, the separated powder enters the material storage tank 27, and the separated gas passes through the heat- Enters the wastewater treatment tank 15 in the form of a liquid and adjusts the concentration of the hydrogen peroxide solution to 30 to 50% through the hydrogen peroxide solution addition groove 20, The magnetron 2 (13) is operated and the wastewater in the wastewater treatment tank (15) is subjected to microwave heating treatment, the wastewater after treatment is discharged through the discharge pipe (17) Step 3;
The heat exchanged in the material storage tank 27 through the heat exchange coil 2 25 and the heat exchanged through the heat exchange coil 1 22 in the heat exchange condenser 11 and the heat emitted from the magnetron 2 13 Step 4 of implementing energy recycling by entering the fluidized-bed dryer 1 through the negative-pressure blower 1 (23) and providing a hot air source
Wherein the method comprises the steps of: (a) providing a plurality of microwave fluidized-bed drying systems in an energy conservation and environmental protection integrated multi-stage microwave fluidized bed drying system. 10. The method of claim 9,
Wherein the time for the wastewater to flow in the wastewater treatment tank (15) is 3 to 5 minutes in the step (3).
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109277214B (en) * 2018-10-31 2024-01-30 浙江凯色丽科技发展有限公司 Mica powder subdivision device
CN110822819A (en) * 2019-10-31 2020-02-21 中山市爱美泰电器有限公司 Discontinuous spiral impels fluidized bed
CN114456411A (en) * 2020-10-21 2022-05-10 中国石油化工股份有限公司 Polypropylene resin with low VOC content and preparation method thereof
CN113551512A (en) * 2021-07-19 2021-10-26 连云港佑源医药设备制造有限公司 Rotary air duct of multi-cabin decompression boiling cleaning and sterilizing machine
CN115451661B (en) * 2022-08-03 2023-11-14 农业农村部南京农业机械化研究所 Microwave convection coupling grain drying module, drying system and drying method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020075635A (en) * 2001-03-26 2002-10-05 주식회사 제닉스엔지니어링 Process and apparatus for treating sewage or waste water without emitting excess sludge
KR100884786B1 (en) * 2007-08-24 2009-02-23 (주)유림이엔지 Multi-stage type drying apparatus
KR20100128621A (en) * 2009-05-28 2010-12-08 권향란 Drying machine of processing wastes
KR101121088B1 (en) * 2011-06-24 2012-03-16 서흥인테크(주) The drying apparatus of heat exchange to double
KR101607551B1 (en) * 2015-04-06 2016-03-30 주식회사 한경이앤씨기술사사무소 Low temperature sludge drying apparatus using ultrahighe speed air current

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU76279A1 (en) * 1976-11-29 1978-07-10
DE4231897C2 (en) * 1992-09-20 1997-02-27 Schulz Verfahrenstechnik Gmbh Process for the combined thermal treatment of a product by microwaves and convection and installation for carrying out the process
CN201284294Y (en) * 2008-10-28 2009-08-05 山东金正大生态工程股份有限公司 Apparatus for continuously producing coated controlled release fertilizer
JP2014173790A (en) * 2013-03-08 2014-09-22 Mitsubishi Heavy Ind Ltd Low-grade coal drying facility and gasification hybrid power system
CN203653397U (en) * 2013-12-26 2014-06-18 山东理工职业学院 Double-fluidized bed device for sludge recycling
CN104006631B (en) * 2014-06-13 2015-09-16 济宁学院 A kind of Multistage Microwave fluidized bed drying device and drying means thereof
CN205593338U (en) * 2016-05-12 2016-09-21 济宁恒翼环保科技有限责任公司 Microwave fluidised bed drying mud device
CN205593305U (en) * 2016-05-12 2016-09-21 济宁学院 Device of microwave fluidised bed drying grain
CN106813458A (en) * 2017-03-31 2017-06-09 济宁学院 Energy-conserving and environment-protective integrated multistage microwave fluidized bed drying system and processing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020075635A (en) * 2001-03-26 2002-10-05 주식회사 제닉스엔지니어링 Process and apparatus for treating sewage or waste water without emitting excess sludge
KR100884786B1 (en) * 2007-08-24 2009-02-23 (주)유림이엔지 Multi-stage type drying apparatus
KR20100128621A (en) * 2009-05-28 2010-12-08 권향란 Drying machine of processing wastes
KR101121088B1 (en) * 2011-06-24 2012-03-16 서흥인테크(주) The drying apparatus of heat exchange to double
KR101607551B1 (en) * 2015-04-06 2016-03-30 주식회사 한경이앤씨기술사사무소 Low temperature sludge drying apparatus using ultrahighe speed air current

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