CN211659285U - Continuous discharge collection device for spray dryer - Google Patents

Abstract

The utility model is used for a continuous discharging and collecting device of a spray dryer, which comprises a spray cyclone separator, a collecting hopper, a butterfly valve, a first air amplifier and a material conveying pipeline, and the butterfly valve comprises a first butterfly valve, a second butterfly valve and a third butterfly valve The collection hopper includes a first collection hopper and a second collection hopper; the spray cyclone is connected to the upper part of the first collection hopper through a first butterfly valve, and the lower part of the first collection hopper is connected to the first collection hopper through a second butterfly valve. The upper part of the second collection hopper is connected, and the lower part of the second collection hopper is connected to the first air amplifier through the set third butterfly valve, and the first air amplifier is connected to the material storage unit or the next process through the material conveying pipeline. The utility model solves the problem that a large amount of materials are taken away by a cyclone in the process of collecting materials by the spray dryer in the prior art, and ensures that the materials sensitive to temperature will not be degenerated due to the heat collection in the hopper. The utility model is used for the drying operation of the spray dryer.

Description

Continuous discharge collection device for spray dryer

technical field

The utility model relates to a discharging and collecting device, in particular to a continuous discharging and collecting device for a spray dryer.

Background technique

For the existing spray drying equipment, the drying process includes: the liquid solution or suspension material is dried by the spray dryer through the fuselage, the material is discharged from the bottom of the cyclone, and the material is collected by the collection hopper. When the hopper reaches a certain capacity, the cyclone separation is turned off. The valve at the end of the hopper is turned to transfer the dry material of the receiving hopper out of the collecting hopper, or directly replace the receiving hopper and continue to open the corresponding valve to receive the material. There are two problems in this process. On the one hand, when the hopper collects a certain amount of material, the material in the hopper will be taken away by the cyclone because it is not transferred in time, resulting in a large amount of material loss; on the other hand, in the hopper collection process The CCW collects heat, causing the temperature in the hopper to rise. For materials that are more sensitive to temperature, there is a problem of thermal denaturation.

SUMMARY OF THE INVENTION

The utility model provides a continuous discharging and collecting device for a spray dryer, which solves the technical problem that a large amount of materials are taken away by a cyclone in the process of collecting materials by a spray dryer in the prior art, and ensures that temperature-sensitive materials are not It will cause material denaturation due to heat collection in the hopper,

The utility model is achieved through the following technical solutions:

A continuous discharge collection device for spray dryers, including a spray cyclone, a collection hopper, a butterfly valve, a first air amplifier and a conveying pipeline, the butterfly valve includes a first butterfly valve, a second butterfly valve and a third butterfly valve, the The collection hopper includes a first collection hopper and a second collection hopper; the spray cyclone is connected to the upper part of the first collection hopper through a first butterfly valve, and the lower part of the first collection hopper is connected to the second collection hopper through a second butterfly valve The upper part of the hopper is connected, and the lower part of the second collection hopper is connected to the first air amplifier through the set third butterfly valve, and the first air amplifier is connected to the material storage unit or the next process through the material conveying pipeline.

Preferably, the continuous discharge collection device further includes a sensor, which is arranged near the discharge port of the spray cyclone.

Preferably, the continuous discharge collection device further comprises a first air hammer, and the first air hammer is arranged on the outer side of the spray cyclone near the discharge port.

Further, a second air hammer is also included, and the second air hammer is arranged on the outer side surface of the lower part of the first collecting hopper.

Further, it also includes a third air hammer, and the third air hammer is arranged on the outer side surface of the lower part of the second collecting hopper.

Preferably, the air hammer realizes percussion vibration through a pneumatic control device to collect materials.

Preferably, the butterfly valve is a pneumatic butterfly valve or an electric butterfly valve.

Preferably, it also includes a nitrogen input interface arranged on the upper part of the second collecting hopper, and the temperature of the material in the collecting hopper is adjusted by nitrogen.

Further, a cyclone separator is arranged after the first air amplifier, and the cyclone separator is used to assist the transportation of materials in the conveying pipeline.

Further, a second air amplifier and a third air amplifier are arranged between the third butterfly valve and the material storage unit, and the air amplifiers are connected by a material conveying pipeline.

The utility model is used for the drying operation of the spray dryer. During the spray drying operation, after the liquid solution or suspension to be dried is dried by the spray dryer, the powdery materials enter the spray cyclone separator of the utility model and fall into the spray cyclone separator of the utility model successively. The first collection hopper and the second collection hopper pass through the conveying pipeline, air amplifier, cyclone separator to the storage unit, or to the next process. The utility model can realize the continuous operation of the whole drying collection and conveying process, and improve the drying efficiency and yield. In addition, compared with the existing spray drying equipment, the utility model makes the temperature of the material controllable by introducing nitrogen gas and transporting the material in time, and ensures that the heat-sensitive material will not be denatured.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of another embodiment of the present invention.

Among them, 1-spray cyclone separator, 2-collection hopper, 21-first collection hopper, 22-second collection hopper, 3-butterfly valve, 31-first butterfly valve, 32-second butterfly valve, 33-third butterfly valve, 4-air amplifier, 41-first air amplifier, 42-second air amplifier, 43-third air amplifier, 5-material delivery pipeline, 6-sensor, 7-air hammer, 71-first air hammer, 72- The second air hammer, 73- the third air hammer, 8- nitrogen input interface, 9- cyclone separator, 10- material storage unit.

Detailed ways

The present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings 1-2, but the following embodiments are not intended to limit the protection scope of the present utility model.

Please refer to FIG. 1 , which is a preferred embodiment of the continuous discharge collection device used in the spray dryer. These examples are for illustration only, and are not limited by this structure in the patent application.

A continuous discharge collection device for a spray dryer, comprising a spray cyclone 1, a collection hopper 2, a butterfly valve 3, a first air amplifier 41 and a material conveying pipeline 5, the butterfly valve 3 includes a first butterfly valve 31, a first butterfly valve 31, a Two butterfly valves 32 and a third butterfly valve 33, the collection hopper 2 includes a first collection hopper 21 and a second collection hopper 22; the spray cyclone 1 is connected to the upper part of the first collection hopper 21 through the first butterfly valve 31, The lower part of the first collection hopper 21 is connected to the upper part of the second collection hopper 22 through the second butterfly valve 32, and the lower part of the second collection hopper 22 is connected to the first air amplifier 41 through a third butterfly valve An air amplifier 41 is connected to the storage unit 10 or the next process through the conveying pipeline 5 .

As an embodiment, the continuous discharge collection device further includes a sensor 6 , which is arranged near the discharge port of the spray cyclone 1 .

As an embodiment, the continuous discharge collection device further includes a first air hammer 71 , and the first air hammer 71 is arranged on the outer side of the spray cyclone 1 near the discharge port.

As an improved embodiment, the continuous discharge collection device further includes a second air hammer 72, and the second air hammer 72 is arranged on the outer side surface of the lower part of the first collection hopper.

As an improved embodiment, the continuous discharge collection device further includes a third air hammer 73 , and the third air hammer 73 is arranged on the outer side surface of the lower part of the second collection hopper 22 .

As an embodiment, the air hammer realizes percussion vibration through a pneumatic control device to collect materials.

As an embodiment, the butterfly valve 3 is a pneumatic butterfly valve or an electric butterfly valve; preferably, it is a pneumatic butterfly valve.

As an improved embodiment, it also includes a nitrogen input interface 8 arranged on the upper part of the second collection hopper 22, and the temperature of the material in the collection hopper is adjusted by nitrogen. The nitrogen input interface introduces nitrogen into the collection hopper to reduce and control the internal material temperature.

As an embodiment, a cyclone separator 9 is arranged after the first air amplifier, and the cyclone separator 9 is used to assist the conveying of materials in the conveying pipeline 5 .

As an embodiment, a second air amplifier 42 and a third air amplifier 43 are arranged between the third butterfly valve 33 and the material storage unit, and the air amplifiers 4 are connected through a material conveying pipeline. The inner diameter of the conveying pipeline matches the interface of the butterfly valve and the air amplifier, which plays the role of sealing connection

Example 1:

A continuous discharge collection device for a spray dryer, comprising a spray cyclone 1, a collection hopper 2, a butterfly valve 3, a first air amplifier 41 and a material conveying pipeline 5, the butterfly valve 3 includes a first butterfly valve 31, a first butterfly valve 31, a Two butterfly valves 32 and a third butterfly valve 33, the collection hopper 2 includes a first collection hopper 21 and a second collection hopper 22, please refer to FIG. 1 . The spray cyclone 1 is connected to the upper part of the first collection hopper 21 through a first butterfly valve 31 , the lower part of the first collection hopper 21 is connected to the upper part of the second collection hopper 22 through a second butterfly valve 32 , and the The lower part of the second collection hopper 22 is connected to the first air amplifier 41 through the provided third butterfly valve 33 , and the first air amplifier 41 is connected to the material storage unit 10 through the material conveying pipeline 5 .

The continuous discharge collection device further includes a sensor 6, which is arranged near the discharge port of the spray cyclone 1 . The continuous discharge collection device further includes a first air hammer 71 , and the first air hammer 71 is arranged on the outer side of the spray cyclone 1 near the discharge port. A second air hammer 72 is also included, and the second air hammer 72 is arranged on the outer side surface of the lower part of the first collecting hopper 21 . A third air hammer 73 is also included, and the third air hammer 73 is arranged on the outer side surface of the lower part of the second collecting hopper 22 . The air hammer 7 realizes percussion vibration through a pneumatic control device to collect materials. The butterfly valve 3 is a pneumatic butterfly valve. It also includes a nitrogen input interface 8 arranged on the upper part of the second collecting hopper 22, and the temperature of the material in the collecting hopper 2 is adjusted by nitrogen.

During operation, when the spray cyclone 1 is discharged, the sensor 6 outputs a signal, the first butterfly valve 31 is opened through the pneumatic control device, the material falls into the first collection hopper 21, and the first air hammer 71 assists the falling when the corresponding time is set. When the collection time T1 reaches the set value, the first butterfly valve 31 is closed and the second butterfly valve 32 is opened; the material in the first collection hopper 21 is assisted by gravity and the second air hammer 72 to hit the side wall of the first collection hopper 72, so that the The side wall of the hopper vibrates, so that the material falls into the second collection hopper 22; the second butterfly valve 32 is closed, and the first butterfly valve 31 waits for the input signal to open, and the cycle is in turn until the drying of the material is completed; the automatic material conveying and the previous process are carried out synchronously. After the second butterfly valve 32 is closed, the third butterfly valve 33 is opened, and the first air amplifier 41 is opened at the same time, and the blanking speed can be adjusted by the flow rate of the driving air source. The combination of the collection hopper and the butterfly valve can prevent a large amount of material in the spray cyclone separator and the first collection hopper from being carried away by the airflow, resulting in a large amount of material loss.

Example 2:

A continuous discharge collection device for a spray dryer, comprising a spray cyclone 1, a collection hopper 2, a butterfly valve 3, a first air amplifier 41 and a material conveying pipeline 5, the butterfly valve 3 includes a first butterfly valve 31, a first butterfly valve 31, a Two butterfly valves 32 and a third butterfly valve 33, the collection hopper 2 includes a first collection hopper 21 and a second collection hopper 22; the spray cyclone 1 is connected to the upper part of the first collection hopper 21 through the first butterfly valve 31, The lower part of the first collection hopper 21 is connected to the upper part of the second collection hopper 22 through the second butterfly valve 32, and the lower part of the second collection hopper 22 is connected to the first air amplifier 41 through a third butterfly valve An air amplifier 41 is connected to the next process through the feed line.

The continuous discharging and collecting device of the present invention further includes a sensor 6, which is arranged near the discharge port of the spray cyclone separator 1, and a first air hammer 71, which is arranged at the spray cyclone separator 1. The outer side of the device 1 near the discharge port; also includes a second air hammer 72, the second air hammer 72 is arranged on the outer side of the lower part of the first collection hopper 21; also includes a third air hammer 73, the first Three air hammers 73 are arranged on the outer side surface of the lower part of the second collecting hopper 22 . The air hammer 7 realizes percussion vibration through a pneumatic control device to collect materials. The butterfly valve 3 is a pneumatic butterfly valve. In order to ensure the requirements of special materials for low temperature environment, the upper part of the second collection hopper 22 is provided with a nitrogen input interface 8, and the temperature of the material in the collection hopper 2 is adjusted by nitrogen. A cyclone separator 9 is arranged after the first air amplifier 41 , and the cyclone separator 9 is used to assist the conveying of materials in the conveying pipeline 5 . A second air amplifier 42 and a third air amplifier 43 are arranged between the third butterfly valve 33 and the cyclone separator 9 , and the air amplifiers 4 are connected through a conveying pipeline 5 . The inclination angle of the conveying pipeline 5 is 0-90°, preferably 0-60°, which is convenient for the transportation of materials in the conveying pipeline 5. The first air amplifier 41, the second air amplifier 42 and the third air amplifier 43 The installation position is shown in Figure 2, and its driving air source can be adjusted by adjusting the valve.

During operation, when the spray cyclone 1 is discharged, the sensor 6 outputs a signal, the first butterfly valve 31 is opened through the pneumatic control device, the material falls into the first collection hopper 21, and the first air hammer 71 assists the falling when the corresponding time is set. When the collection time T1 reaches the set value, the first butterfly valve 31 is closed and the second butterfly valve 32 is opened; the material in the first collection hopper 21 is assisted by gravity and the second air hammer 72 to hit the side wall of the first collection hopper 72, so that the The side wall of the hopper vibrates, so that the material falls into the second collection hopper 22; the second butterfly valve 32 is closed, and the first butterfly valve 31 is turned on after the input signal, and the cycle is in turn until the drying of the material ends. The automatic conveying of materials and the previous process are carried out synchronously. After the second butterfly valve 32 is closed, the third butterfly valve 33 is opened, and the first air amplifier 41, the second air amplifier 42, and the third air amplifier 43 are opened at the same time. The control device is based on the cyclone separator 9 The blanking speed automatically adjusts the first air amplifier 41, the second air amplifier 42, and the third air amplifier 43, and drives the size control of the air source flow. The combination of the collection hopper and the butterfly valve can prevent a large amount of material in the spray cyclone separator and the first collection hopper from being carried away by the airflow, resulting in a large amount of material loss. In addition, the utility model also ensures that the material is in a low temperature environment in the collecting hopper, and the temperature-sensitive material will not be denatured due to the excessively high temperature during the operation.

It should be understood that the above are only some preferred embodiments of the present invention, and the present invention is not limited to the contents of the above embodiments. For those skilled in the art, various changes and modifications can be made within the scope of the concept of the technical solution of the present invention or under the guidance and inspiration. within the scope of the new protection.

Claims (10)

1. A continuous ejection of compact collection device for spray dryer which characterized in that: the device comprises a spray cyclone separator, a collecting hopper, butterfly valves, a first air amplifier and a conveying pipeline, wherein each butterfly valve comprises a first butterfly valve, a second butterfly valve and a third butterfly valve;

the spray cyclone separator is connected with the upper part of the first collecting hopper through a first butterfly valve, the lower part of the first collecting hopper is connected with the upper part of the second collecting hopper through a second butterfly valve, the lower part of the second collecting hopper is connected with a first air amplifier through a third butterfly valve which is arranged, and the first air amplifier is connected with a storage unit or the next procedure through a material conveying pipeline.

2. The continuous take-off collection apparatus for a spray dryer of claim 1, wherein: the continuous discharge collecting device also comprises a sensor which is arranged at a position close to the discharge port of the spray cyclone separator.

3. The continuous take-off collection apparatus for a spray dryer of claim 2, wherein: still include first air hammer, first air hammer sets up the lateral surface of being close to the discharge gate at spray cyclone.

4. The continuous take-off collection apparatus for a spray dryer of claim 3, wherein: still include the second air hammer, the second air hammer sets up the lateral surface of first collection hopper lower part.

5. The continuous take-off collection apparatus for a spray dryer of claim 4, wherein: the second collecting hopper is arranged on the outer side surface of the lower portion of the second collecting hopper.

6. A continuous take-off collection device for a spray dryer as claimed in any one of claims 3 to 5, wherein: the pneumatic hammer realizes knocking vibration through a pneumatic control device and collects materials.

7. The continuous take-off collection device for a spray dryer of any one of claims 1 to 5, wherein: the butterfly valve is a pneumatic butterfly valve or an electric butterfly valve.

8. The continuous take-off collection apparatus for a spray dryer of claim 7, wherein: the device also comprises a nitrogen input interface arranged at the upper part of the second collecting hopper, and the temperature of the materials in the collecting hopper is adjusted through nitrogen.

9. The continuous take-off collection apparatus for a spray dryer of claim 8, wherein: a cyclone is arranged after the first air amplifier, said cyclone being used to assist the transport of the material in the pipeline.

10. The continuous take-off collection apparatus for a spray dryer of claim 9, wherein: the third butterfly valve with be provided with second air amplifier, third air amplifier between the storage unit, connect through the conveying pipeline between the air amplifier.

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