CN215176772U

CN215176772U - Powder drying system

Info

Publication number: CN215176772U
Application number: CN202022408418.XU
Authority: CN
Inventors: 赵辉; 廖展光; 李启龙
Original assignee: Guangzhou Jimu Accumulate Technology Exploit Co ltd
Current assignee: Guangzhou Jimu Accumulate Technology Exploit Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-12-14
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a powder drying system, including drying chamber, dehumidification firing equipment, first separator, second separator and third separator, the third separator with the drying chamber links to each other, the second separator with the third separator links to each other, the first separator with the drying chamber respectively and/or the third separator links to each other, and the second separator with the first separator all with dehumidification firing equipment links to each other; the powder drying system has the advantages of reasonable structure, high powder drying quality improvement and reduced drying.

Description

Powder drying system

Technical Field

The utility model belongs to the technical field of drying equipment, concretely relates to powder class drying system.

Background

The drying equipment is mechanical equipment widely applied to industries such as food, feed, chemical industry, medicine, mine and the like, and is mainly used for dehydrating raw materials; at present, spray type vacuum drying is mainly adopted for drying powder, and an air source heat pump dryer is mainly used for heating powder by utilizing a vacuum boiling point reduction mode and a radiation mode, but when the powder containing active ingredients is dried in a similar mode (the powder contains active substances or active bacteria), the temperature at a nozzle of drying equipment is relatively high due to more uncontrollable factors, and the survival rate of the active substances or the active bacteria in the powder is not high after the temperature is high, namely the drying quality of the active powder is reduced; after the temperature is reduced, the humidity of the powder is higher or longer drying time is needed, and the drying cost of the powder is improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a rational in infrastructure, can improve powder drying quality and reduce the powder drying system of drying.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides a powder class drying system, includes drying chamber, dehumidification firing equipment, first separator, second separator and third separator, the third separator with the drying chamber links to each other, the second separator with the third separator links to each other, first separator respectively with the drying chamber with the third separator links to each other, just the second separator with first separator all with dehumidification firing equipment links to each other.

As a further improvement of the powder drying system, a drying chamber is arranged in the drying chamber, at least one layer of blocking net is arranged in the drying chamber, the blocking net divides the drying chamber into at least a first drying layer and a second drying layer from top to bottom, and the first drying layer is communicated with the second drying layer.

As a further improvement of the powder drying system, the powder drying system further comprises a feeding device, a fan, and a first feeding hole, a first discharging hole, a first air inlet, a first air outlet and a powder outlet air channel which are respectively arranged on the drying chamber, wherein the fan is connected between the first feeding hole and the feeding device, the first discharging hole is connected with the feeding device, and the first air inlet is connected with an outlet of the dehumidifying and heating device.

As a further improvement of the powder drying system, the powder outlet air duct is communicated with the second drying layer.

As a further improvement of the powder drying system, the first feed inlet is located at the top of the drying cavity or at the top of the first drying layer, and the first air inlet is located at the bottom of the drying cavity or connected with the first air inlet and the second drying layer.

As a further improvement of the powder drying system, the third separating device is provided with a second air inlet, a second air outlet and a second discharge port, the second discharge port is connected with the feeding device, and the second air inlet is communicated with the powder outlet air duct.

As a further improvement of the powder drying system, a third air inlet, a third air outlet and a third discharge hole are respectively arranged on the second separating device, the third air inlet is connected with the second air outlet, and the third air outlet is connected with the air inlet of the dehumidifying and heating device.

As a further improvement of the powder drying system, a fourth air inlet, a fourth air outlet and a fourth discharge port are respectively arranged on the first separating device, the fourth air inlet is connected with the first air outlet, the fourth air outlet is connected with the air inlet of the dehumidifying and heating device, and the fourth discharge port is connected with the second air inlet or the powder discharge air duct.

As a further improvement of the powder drying system, the first discharge port, the second discharge port, the third discharge port and the fourth discharge port are all provided with control valves; and the second air outlet, the third air outlet and the fourth air outlet are all provided with regulating valves.

As a further improvement of the powder drying system, the dehumidifying and heating device is an air energy dehumidifying and heating device.

The utility model discloses produced technological effect mainly embodies: after the powder to be dried is sent into a drying chamber and falls down under the action of gravity, the powder and low-temperature air which is used for sending a drying material into a drying main body by dehumidification heating equipment are subjected to primary heat exchange, dehydration and drying, and part of the powder which meets the drying requirement enters a third separation device and a first separation device, wherein the powder which is subjected to further dehydration and drying in the first separation device is sent into the third separation device again, and finally the powder which enters the third separation device is sent into a second separation device for final drying and discharging; the second separation device and the first separation device are connected with the dehumidifying and heating equipment, and the recycling of heat sent by the dehumidifying and heating equipment is realized, so that the problems that the temperature/humidity is not easy to control, the activity survival rate is low, the operation cost is high and the like in the prior art are solved, namely, the drying quality of the drying system for powder is improved, and the drying cost is reduced.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic structural diagram of a powder drying system according to the present invention;

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the present invention is described only, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limited to the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.

As shown in fig. 1, an embodiment of the present invention provides a powder drying system, which includes a drying chamber 1, a dehumidifying and heating apparatus 2, a first separating device 3, a second separating device 4, and a third separating device 5; wherein, third separator 5 links to each other with drying chamber 1, and second separator 4 links to each other with third separator 5, and first separator 3 links to each other with drying chamber 1 and/or third separator 5 respectively, and second separator and first separator 3 all link to each other with dehumidification heating equipment 2. Specifically, the method comprises the following steps: a drying cavity 11 is arranged in the drying chamber 1, at least one layer of blocking net 12 is arranged in the drying cavity 11, the drying cavity 11 is divided into at least a first drying layer and a second drying layer by the blocking net 12 from top to bottom, and the first drying layer is communicated with the second drying layer. Further, the drying device comprises a feeding device 6, a fan 7, a first feeding hole 13, a first discharging hole 14, a first air inlet 15, a first air outlet 16 and a powder outlet air duct 17 which are respectively arranged on the drying chamber 1, wherein the fan 7 is connected between the first feeding hole 13 and the feeding device 6, and the fan 7 is used for supplying air into the drying chamber 1, namely negative pressure is generated at the feeding device 6 so as to help the powder to be dried and dehydrated to enter the drying chamber 1; the first discharge port 14 is connected with the feeding device 6, and the first air inlet 15 is connected with an outlet of the dehumidifying and heating device 2. In this embodiment, the first feeding hole 13 is located at the top of the drying chamber 11 or the top of the first drying layer, and the first air inlet 15 is located at the bottom of the drying chamber or the first air inlet 15 is connected to the second drying layer, that is, the powder entering the drying chamber 11 falls to the bottom of the drying chamber 11 under the action of gravity, or falls from the first drying layer to the second drying layer through the pull-up screen 12; the dehumidifying and heating device 2 in this embodiment is an air energy dehumidifying and heating device 2 for providing hot air for drying powder material into the drying chamber 11, and the hot air is mixed with the falling powder material to primarily dry the powder material; the blocking net 12 can reduce the falling speed of the powder, so that the powder can be fully mixed with the fed hot air when falling, and the powder can be fully dried.

Furthermore, the powder outlet duct 17 is communicated with the second drying layer, that is, the powder entering the drying chamber 11 enters the second drying layer from the first drying layer through the blocking net 12, wherein a part of the powder with the dehydration rate meeting the requirement flows out from the powder outlet duct 17 along with the air flow and enters the third separating device 5, while the powder with relatively high water content cannot flow along with the air flow due to relatively large self weight and falls on the bottom of the drying chamber 11, that is, the bottom of the second drying layer, and the powder with still relatively high humidity falling on the bottom of the drying chamber 11 can be discharged from the first discharge port 14 and circularly fed into the drying chamber 1 again through the feeding device 6; meanwhile, the part of the powder material which is positioned in the first drying layer and has the dewatering rate up to the standard flows out of the first air outlet 16 along with the air flow and enters the first separating device 3.

Further, a second air inlet 51, a second air outlet 52 and a second material outlet 53 are respectively arranged on the third separating device 5, wherein the second material outlet 53 is connected with the feeding device 6, the second air inlet 51 is communicated with the powder outlet duct 17, and the third separating device 5 in this embodiment is a cyclone separating device; because a small amount of dehydration rate still can not meet the requirement in the powder sent by the drying chamber 1 and the high first separation device 3, at this time, the powder entering the third separation device 5 can be further dehydrated and dried by the residual heat in the air flow, that is, the powder meeting the requirement in drying enters the second separation device from the second air outlet 52 along with the air flow, and the separated powder falls on the bottom of the third separation device 5, finally is discharged from the second discharge port 53 and is sent into the drying chamber 1 through the feeding device 6, that is, participates in circulation.

Further, a third air inlet 41, a third air outlet 42 and a third material outlet 43 are respectively arranged on the second separating device 4, the third air inlet 41 is connected with the second air outlet 52, and the third air outlet 42 is connected with an air inlet of the dehumidifying and heating device 2; after the powder sent from the third separation device 5 reaches the dehydration and drying indexes, the powder can be separated by air and the material can be discharged, wherein the second separation device 4 can be a filter bag type separation device, for example, after the air and the powder enter the second separation device 4, the air flow passes through the filter bag, and the powder is left and finally discharged from the third discharge hole 43; and the air current that passes through the filter bag is by flowing out from third air outlet 42, finally enters the air intake participation circulation of dehumidification heating equipment 2 to carry out recovery and reuse to the waste heat in the air current, reduce the consumption to the energy.

Further, a fourth air inlet 31, a fourth air outlet 32 and a fourth material outlet 33 are respectively arranged on the first separating device 3, the fourth air inlet 31 is connected with the first air outlet 16, the fourth air outlet 32 is connected with the air inlet of the dehumidifying and heating device 2, and the fourth material outlet 33 is connected with the second air inlet 51 or the powder outlet air duct; the fourth air inlet 31 of the first separating device receives the air and powder sent from the first air outlet 16 of the drying chamber 11 and separates the air and the powder; wherein, the first separation device can be a filter bag type separation device, that is, the separated powder is sent to the third separation device 5 through the fourth discharge port 33, specifically, a small amount of powder which does not meet the requirement of drying still can be mixed in the first separation device at this time, and the powder can be further dried and separated after being sent to the third separation device 5; the separated airflow flows out from the fourth air outlet 32 and finally enters the air inlet of the dehumidifying and heating device 2 to participate in circulation, so that the waste heat in the airflow is recycled, and the consumption of electric energy is reduced.

Further, in the preferred embodiment, the first discharge port 14, the second discharge port 53, the third discharge port 43 and the fourth discharge port 33 are all provided with control valves, and the control valves can respectively control the discharge of the drying chamber 1, the third separating device 5, the second separating device 4 or the first separating device 3. The second air outlet 52, the third air outlet 42 and the fourth air outlet 32 are all provided with regulating valves, and the regulating valves can respectively control the air output of the third separating device 5, the second separating device 4 or the first separating device 3. The air flow discharged by the third separation device 5, the second separation device 4 or the first separation device 3 contains the moisture removed from the powder, and is dehumidified by an evaporator in the dehumidification heating equipment 2 (air energy dehumidification heating equipment) to remove the moisture in the air flow, specifically, the working temperature of the evaporator end is relatively low, the temperature of the return air is relatively high at the moment, the moisture in the air flow is condensed into water under the temperature difference, and then the return air is dehumidified; and the heat released from the condenser end is used as a heat source for drying the powder.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A powder drying system is characterized in that: including drying chamber, dehumidification firing equipment, first separator, second separator and third separator, third separator with the drying chamber links to each other, second separator with third separator links to each other, first separator respectively with the drying chamber and/or third separator links to each other, just the second separator with first separator all with dehumidification firing equipment links to each other.

2. The powder drying system according to claim 1, wherein: the drying chamber is internally provided with a drying chamber, at least one layer of blocking net is arranged in the drying chamber, the blocking net is used for separating the drying chamber into at least a first drying layer and a second drying layer from top to bottom, and the first drying layer is communicated with the second drying layer.

3. The powder drying system according to claim 2, wherein: still include feed arrangement, fan, and set up respectively first feed inlet, first discharge gate, first air intake, first air outlet and play powder wind channel on the drying chamber, the fan is connected first feed inlet with between the feed arrangement, first discharge gate with feed arrangement is connected, first air intake with dehumidification firing equipment's export links to each other.

4. The powder drying system according to claim 3, wherein: and the powder outlet air duct is communicated with the second drying layer.

5. The powder drying system according to claim 3, wherein: the first feed inlet is positioned at the top of the drying cavity or the top of the first drying layer, and the first air inlet is positioned at the bottom in the drying cavity or connected with the second drying layer.

6. The powder drying system according to claim 4, wherein: and the third separation device is respectively provided with a second air inlet, a second air outlet and a second discharge hole, the second discharge hole is connected with the feeding device, and the second air inlet is communicated with the powder outlet air channel.

7. The powder drying system according to claim 6, wherein: and the second separation device is respectively provided with a third air inlet, a third air outlet and a third discharge hole, the third air inlet is connected with the second air outlet, and the third air outlet is connected with the air inlet of the dehumidifying and heating equipment.

8. The powder drying system according to claim 7, wherein: the first separating device is provided with a fourth air inlet, a fourth air outlet and a fourth discharge hole respectively, the fourth air inlet is connected with the first air outlet, the fourth air outlet is connected with the air inlet of the dehumidifying and heating device, and the fourth discharge hole is connected with the second air inlet or the powder outlet air channel.

9. The powder drying system according to claim 8, wherein: the first discharge port, the second discharge port, the third discharge port and the fourth discharge port are all provided with control valves; and the second air outlet, the third air outlet and the fourth air outlet are all provided with regulating valves.

10. The powder drying system according to claim 1, wherein: the dehumidifying and heating equipment is air energy dehumidifying and heating equipment.