CN113368770B

CN113368770B - Albumen powder processing is with mixing stirring device

Info

Publication number: CN113368770B
Application number: CN202110577405.1A
Authority: CN
Inventors: 陈长明; 陈强炬; 严启新; 吴红霞; 鲍勇军; 戚心培; 李慧凤; 孙晨仪
Original assignee: Jiangsu Neptunus Health Biotechnology Co ltd
Current assignee: Zaozhuang Haiwang Health Industry Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-09-09
Anticipated expiration: 2041-05-26
Also published as: CN113368770A

Abstract

The invention discloses a mixing and stirring device for processing protein powder, which comprises a plurality of rough-removing tanks, a plurality of fine-removing tanks, a discharging pipe group and a powder discharging pipe, wherein the discharging ports of the plurality of rough-removing tanks are connected to the feeding port of the fine-removing tank through the discharging pipe group, the discharging port of the fine-removing tank is connected with the powder discharging pipe, and gases higher than room temperature are respectively introduced into the rough-removing tanks and the fine-removing tanks for stirring and dehydration. The mixing and stirring device further comprises a hot gas circulation component, the rough-removing tank and the fine-removing tank are respectively dehydrated through the hot gas circulation component, gas higher than the room temperature is introduced into the rough-removing tank or the fine-removing tank through the hot gas circulation component, the hot gas circulation component extracts gas containing water vapor in the rough-removing tank or the fine-removing tank, and the hot gas circulation component compresses and dehydrates the gas containing water vapor and then introduces the gas into the rough-removing tank or the fine-removing tank again.

Description

Albumen powder processing is with mixing stirring device

Technical Field

The invention relates to the technical field of protein powder processing, in particular to a mixing and stirring device for protein powder processing.

Background

The protein powder has high-value protein supplement nutrients, and can be widely used by fitness personnel or people with insufficient protein intake.

The protein powder produced from milk whey is the best of various protein powders, and the parameters of amino acid proportion, solubility and the like are all higher levels. Whey is a byproduct of milk after cheese production, has more water, and when the protein powder is produced, whey stock solution is separated from water-soluble substances such as lactose, fat and the like in a series of stainless steel pipelines, then is guided into a dryer to be dehydrated and dried to obtain the protein powder, and then quality inspection and taste modulation are carried out to produce a finished product.

Whey stoste input reaches dozens with the output quality ratio of albumen powder, and traditionally dehydration only goes on in a jar, need spend a large amount of time at the end stage of dehydration and stir the operation to fully with the moisture desorption of some local position adhesions, this container is not high in time utilization, and a large amount of spaces in inside are extravagant moreover, and heat utilization is also lower, and machining efficiency can't be guaranteed. And after hot gas is introduced into the dryer for drying, the gas wrapped with water vapor is directly discharged, and a large amount of heat is wasted.

Disclosure of Invention

The invention aims to provide a mixing and stirring device for processing protein powder, which solves the problems in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a protein powder processing is with mixing stirring device, mixing stirring device include that the jar is taken off roughly, the essence takes off jar, unloading nest of tubes and goes out the powder pipe, and the jar is taken off roughly has a plurality of, and the discharge gate that the jar was taken off roughly to a plurality of is connected to the feed inlet department that the jar was taken off to the essence through unloading nest of tubes, and the powder pipe is connected out to the jar discharge gate is taken off to the essence, and the jar is taken off roughly and the jar is taken off to the essence and the jar interior gas that lets in respectively and be higher than the room temperature stirs the dehydration.

The rough-removing tank and the fine-removing tank are respectively used for dehydration and drying, however, the rough-removing tank is used for dehydration of whey stock solution in a large proportion, the whey stock solution is dehydrated in the rough-removing tank to obtain wet protein powder, the wet protein powder in a plurality of rough-removing tanks is uniformly input into the fine-removing tank to be dehydrated and dried for the second time, the rough-removing tank is emptied so as to carry out the dehydration process of the whey stock solution of the next round, the fine-removing tank is filled with a large amount of wet protein powder, the volume utilization rate is high, the protein powder after secondary drying is collected from a powder outlet pipe, subsequent quality inspection is carried out, and the processes such as a taste modulation process can be packaged and warehoused. The mode that the dehydration was used still traditional logical hot gas that lets in, hot gas and whey stoste or moist albumen powder contact back, and partial moisture evaporation is the gaseous state, is taken out by the hot gas parcel, and this process still need be accompanied with the stirring effect of stoste or albumen powder, lets gas and stoste/albumen powder intensive mixing, with the moisture desorption of all positions.

Further, mixing stirring device still includes the hot gas circulation subassembly, takes off jar and essence and takes off the jar and dewater through the hot gas circulation subassembly respectively roughly, and the hot gas circulation subassembly lets in the gas that is higher than the room temperature in jar or the essence is taken off to roughly taking off jar or essence, and the hot gas circulation subassembly extraction is roughly taken off jar or essence and is taken off the gas that contains steam in the jar, lets in again behind the gas compression dehydration that contains steam in jar or the essence is taken off jar roughly. The hot air circulation assembly is used for saving heat consumption, hot air is collected again and dewatered after water vapor overflows from the wrapping tape, and hot air is recycled to reduce heat loss.

Further, the essence jar of taking off includes a jar body, including a motor, an end cap, a controller, and a cover plate, the (mixing) shaft, the stirring leaf, the feed inlet is seted up to jar side wall and is connected the unloading nest of tubes, jar body bottom surface is seted up the discharge gate and is connected out the powder pipe, the motor sets up the top at the jar body, the vertical (mixing) shaft of arranging of motor downwardly connected, set up the stirring leaf on the (mixing) shaft, set up the shaft hole that extends along the axis in the (mixing) shaft and regard as the steam pipe, the steam pipe is from jar external gas that is higher than the room temperature of introducing, (mixing) shaft bottom side still sets up the aeration pipe, the aeration pipe is connected with the steam pipe, the aeration pipe is kept away from the vertical setting of one end of (mixing) shaft bottom and is located the radial periphery of (mixing) shaft, jar body top surface still sets up external outlet duct. Hot gas enters the fine threshing tank from a hot gas pipe, is discharged downwards from the center of the stirring shaft and then passes through the aeration pipe to carry out dehydration operation, the stirring shaft and the stirring blades rotate while aerating, wet protein powder in the tank body is mixed with the gas discharged from the aeration pipe, the rotating stirring blades drive the material to rotate, the material is not influenced when being moist as a whole, however, when one part of the material is dried, and the rest part is dried, a certain centrifugal separation effect is realized, the lumps of the moist part are more easily accumulated to the periphery in the tank body under the driving of the stirring blades, the dry protein powder is accumulated near the middle stirring shaft, at the moment, the hot gas sprayed out from the aeration pipe is directly contacted with the moist lumps, the dehydration effect is more targeted, the drying speed is accelerated, and the hot gas reaches the place where the moist protein powder is needed more, the gas moves upwards to continuously take away the moisture in the wet protein powder circular ring, and the mixed gas containing water vapor is accumulated at the top of the tank body and is discharged from the gas outlet pipe.

Furthermore, the tank body is also internally provided with a cold air pipe which is arranged close to the stirring shaft, the upper end of the cold air pipe introduces gas with the temperature lower than that in the hot air pipe from the outside of the tank body, the lower end of the cold air pipe is converged into the aeration pipe, the fine threshing tank also comprises a rotary gas distribution assembly, the rotary gas distribution assembly is connected with the top end of the hot air pipe and gives a fixed interface outwards, and the rotary gas distribution assembly is also connected with the top end of the cold air pipe and gives a fixed interface outwards. When the dry part of the protein powder in the tank body is wet, the cold air pipe is added, heat can be collected from the dry protein powder near the stirring shaft, the protein powder at the position does not need to be kept in a high-temperature state and can be restored to a normal-temperature state, but because of the existence of stirring effect, heat exchange is inevitably carried out on the dry and wet protein powder, therefore, the protein powder in a dry area can absorb a part of heat for water evaporation to influence the heat utilization rate, cold air is introduced into the cold air pipe and flows downwards, heat exchange is carried out through the pipe wall in the flowing process, certain heat is absorbed from the protein powder and flows back to the aeration pipe, gas containing water vapor flows out from the top of the tank body, then the gas is collected and treated by the hot air circulating component and is input into the hot air pipe again, and the gas in the cold air pipe is mostly from the treated gas, after being treated, the gas from the gas outlet pipe is divided into two parts, one part is returned to the hot gas pipe at high temperature, and the other part is returned to the inlet of the cold gas pipe at low temperature after heat is transferred by means of a heat engine and the like. The rotary air distribution assembly is used for interface transfer, because the hot air pipe and the cold air pipe are required to rotate along with the stirring shaft, but the external interface cannot rotate, so the rotary air distribution assembly is required to eliminate the influence of the rotary motion.

Further, rotatory distribution subassembly includes swivel sleeve and branch gas holder, divide the gas holder to install at jar body top surface, divide and separate for two horizontally annular chambers through the baffle in the gas holder, two chambers are last hot air chamber and cold air chamber under respectively, the (mixing) shaft is located one section radial trompil intercommunication hot-air pipe and hot air chamber of hot air intracavity, the swivel sleeve is fixed on the (mixing) shaft, annular transfer cavity has in the swivel sleeve, the cold air pipe is connected to swivel sleeve lower extreme end face, the swivel sleeve upwards inserts in the branch gas holder, the through-hole is seted up to one section side that the swivel sleeve is located the cold air intracavity, set up external interface on hot air chamber and the cold air chamber lateral wall respectively. The interface position on the side wall of the hot air cavity is fixed and used as an external interface, and the inward side is connected into the hot air pipe through a through hole on the stirring shaft, the interface position on the side wall of the cold air cavity is fixed and used as an external interface, and the inward side is connected with the through hole on the side wall of the rotating sleeve, so that the hot air cavity is connected onto the rotating cold air pipe through the rotation of the rotating sleeve.

Further, the hot gas circulation subassembly that the dehydration of jar was used for taking off to the essence includes the high-pressure pipe, the low-pressure pipe, a compressor, the trap, the air-vent valve, the drain pipe, compressor access connection outlet duct, the compressor exit has the trap, the trap exhaust end is divided into two and is connected the high-pressure pipe respectively, the low-pressure pipe, the drain end connecting drain pipe of trap, the hot air chamber is connected to the high-pressure pipe, low pressure union coupling cold air chamber, the initial position of low-pressure pipe sets up the air-vent valve, the cold air pipe converges the aeration pipe through venturi. The compressor draws the gas at the top of the tank body, after compression, the moisture in the gas is liquefied into water, the water is drained at the drain valve, the gas is divided into two parts and respectively goes to the hot air pipe and the cold air pipe, when the compressor compresses the gas to liquefy the water, the water releases heat to the backflow gas to complete better heat recovery effect, the high-pressure pipe is connected to the hot air pipe and used as the dehydration hot gas in the main flow tank body, the low pressure pipe is cooled by a pressure reduction mode, the pressure in the low pressure pipe is lower than the exhaust pressure of the drain valve by one grade due to the existence of the pressure regulating valve, the reduction degree is equal to the local resistance of the pressure regulating valve, the venturi tube is used as an unpowered suction structure, the main flow path of the venturi tube is from the hot air tube to the aeration tube, the throat suction interface is connected with the cold air tube, and the air pressure in the cold air tube is lower than that in the hot air tube, so that the temperature is lower than that in the hot air tube.

Furthermore, the hot gas circulation component used for the dehydration of the fine dehydration tank also comprises a fresh air pipe, and the fresh air pipe supplies gas higher than room temperature to the exhaust port of the drain valve. The gas used for dehydration has some loss in the circulation process, and the fresh air pipe is used for hot gas supplement.

Furthermore, an insulating layer is arranged on the inner wall of the hot gas pipe. High-temperature gas flowing from the core part of the stirring shaft is prevented from transferring heat to surrounding dry powdery protein powder through the stirring shaft, and a heat insulation layer is arranged for heat insulation.

Furthermore, the side wall of the cold air pipe is provided with fins. The fins enhance the heat exchange between the gas in the cold air pipe and the surrounding dry powdery protein powder.

Compared with the prior art, the invention has the following beneficial effects: the invention improves the space utilization rate of the dehydration position by the combined use of the two-stage dehydration tank body, the first-stage dehydration with large proportion enters the fine dehydration tank for full drying, the hot gas in the fine dehydration tank is stirred and mixed with the protein powder at the same time, in the latter half of the dehydration, the wet protein powder is accumulated on the periphery, the position is the position of the aeration pipe, the sprayed hot gas has position pertinence, the hot gas is recycled, the energy utilization rate is improved, two gas branches are arranged in a hot gas circulation component of the fine dehydration tank, one gas branch is subjected to unpowered automatic temperature and pressure reduction and descends from the vicinity of the stirring shaft, the heat of the surrounding dry protein powder is collected, and the heat utilization rate is improved again.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall use of the present invention;

FIG. 2 is a schematic structural view of a fine stripping tank of the present invention;

FIG. 3 is a schematic diagram of the rotary air distribution assembly of the present invention;

FIG. 4 is a schematic flow diagram of the hot gas cycle assembly of the present invention;

FIG. 5 is a schematic diagram of the operation of the agitation process in the fine stripping tank of the present invention;

in the figure: 1-rough knockout drum, 2-fine knockout drum, 21-tank body, 22-motor, 23-stirring shaft, 24-stirring blade, 25-rotary air distribution component, 251-rotary sleeve, 252-air distribution seat, 2521-hot air cavity, 2522-cold air cavity, 31-hot air pipe, 32-cold air pipe, 33-aeration pipe, 34-air outlet pipe, 35-Venturi pipe, 41-high pressure pipe, 42-low pressure pipe, 43-compressor, 44-drain valve, 45-pressure regulating valve, 46-water outlet pipe, 47-new air pipe, 91-blanking pipe group and 92-powder outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions:

the utility model provides a protein powder processing is with mixing stirring device, mixing stirring device includes that the thick jar of taking off 1, the essence takes off jar 2, unloading nest of tubes 91 and goes out powder pipe 92, and the thick jar of taking off 1 has a plurality of, and a plurality of is taken off the discharge gate of jar 1 and is connected to the feed inlet department that the essence takes off jar 2 through unloading nest of tubes 91 roughly, and powder pipe 92 is connected to the discharge gate of the essence jar 2, lets in the gas that is higher than the room temperature respectively in the thick jar of taking off 1 and the essence jar of taking off 2 and stirs the dehydration.

As shown in fig. 1, the rough-removing tank 1 and the fine-removing tank 2 are used for dehydration and drying respectively, however, the rough-removing tank 1 is used for dehydration of whey stock solution in a large proportion, the whey stock solution is dehydrated in the rough-removing tank 1 to obtain wet protein powder, the wet protein powder in several rough-removing tanks 1 is uniformly input into the fine-removing tank 2 for secondary dehydration and drying, the rough-removing tank 1 is emptied to carry out the dehydration process of whey stock solution of the next round, the fine-removing tank 2 is filled with a large amount of wet protein powder, the volume utilization rate is high, the protein powder after secondary drying is collected from the powder outlet pipe 92, and the subsequent processes such as quality inspection and taste modulation process can be packaged and warehoused. Still traditional mode of letting in the hot gas that the dehydration was used, hot gas and whey stoste or moist albumen powder contact back, partial moisture evaporation is the gaseous state, is taken out by the hot gas parcel, and this process still need be followed the stirring effect of stoste or albumen powder, lets gas and stoste/albumen powder intensive mixing, with the moisture desorption of all positions.

Mixing stirring device still includes the hot gas circulation subassembly, and jar 1 is taken off to the thick jar of taking off and jar 2 is taken off through the hot gas circulation subassembly respectively and is dehydrated, and the hot gas circulation subassembly lets in the gas that is higher than the room temperature toward jar 1 is taken off to the thick jar of taking off or 2 is taken off to the essence, and the hot gas circulation subassembly extracts the gas that contains steam in

jar

1 or 2 is taken off to the thick jar of taking off of containing steam after the gas compression dehydration that contains steam, lets in again in

jar

1 or 2 is taken off to the thick jar of taking off or essence. The hot air circulation assembly is used for saving heat consumption, hot air is collected again and dewatered after water vapor overflows from the wrapping tape, and hot air is recycled to reduce heat loss.

The fine threshing tank 2 comprises a tank body 21, a motor 22, a stirring shaft 23 and stirring blades 24, wherein a feeding hole is formed in the side wall of the tank body 21 to connect a blanking pipe group 91, a discharging hole is formed in the bottom surface of the tank body 21 to connect a powder discharging pipe 92, the motor 22 is arranged above the tank body 21, the motor 22 is downwards connected with the stirring shaft 23 which is vertically arranged, the stirring blades 24 are arranged on the stirring shaft 23, a shaft hole extending along the axis is formed in the stirring shaft 23 to serve as a hot air pipe 31, the hot air pipe 31 introduces gas higher than the room temperature from the outside of the tank body 21, the bottom end side surface of the stirring shaft 23 is also provided with an aeration pipe 33, the aeration pipe 33 is connected with the hot air pipe 31, the aeration pipe 33 is far away from the vertical setting of one end of the bottom of the stirring shaft 23 and is located on the radial periphery of the stirring shaft 23, and the top surface of the tank body 21 is also provided with an external air outlet pipe 34. As shown in fig. 2, hot gas enters the fine threshing tank 2 from the hot gas pipe 31, is discharged from the center of the stirring shaft 23 downwards through the aeration pipe 33 for dehydration operation, the stirring shaft 23 and the stirring blades 24 rotate while aerating, wet protein powder in the tank body 21 is mixed with gas from the aeration pipe 33, the rotating stirring blades 24 drive the material to rotate, the material is not affected when the material is wet as a whole, however, when a part of the material is dried, and the rest part is dried, a certain centrifugal separation effect is provided, the wet part of the mass is easier to accumulate to the periphery in the tank body 21 under the drive of the stirring blades 24, the dry protein powder is accumulated near the middle stirring shaft 23, and at the moment, the hot gas sprayed from the aeration pipe 33 directly contacts with the wet mass, the dehydration effect is more pertinent, the drying speed is accelerated, the hot gas reaches the position where the wet protein powder is needed, the gas moves upwards to continuously take away the water in the wet protein powder circular ring, and the mixed gas containing water vapor is accumulated at the top of the tank body 21 and is discharged from the gas outlet pipe 34.

The tank body 21 is also internally provided with a cold air pipe 32, the cold air pipe 32 is arranged close to the stirring shaft 23, the upper end of the cold air pipe 32 introduces gas with the temperature lower than the temperature in the hot air pipe 31 from the outside of the tank body 21, the lower end of the cold air pipe 32 is converged into the aeration pipe 33, the fine threshing tank 2 also comprises a rotary gas distribution assembly 25, the rotary gas distribution assembly 25 is connected with the top end of the hot air pipe 31 and provides a fixed interface outwards, and the rotary gas distribution assembly 25 is also connected with the top end of the cold air pipe 32 and provides a fixed interface outwards. As shown in fig. 2, when the dry part of the protein powder in the tank 21 is wet, the cold air pipe 32 is added to collect heat from the dry protein powder near the stirring shaft 23, and the protein powder therein can be returned to the normal temperature state without maintaining the high temperature state, but because of the existence of the stirring effect, the dry and wet protein powder must have heat exchange, so the protein powder in the dry area still absorbs a part of heat for water evaporation, and affects the heat utilization rate, therefore, the cold air pipe 32 is introduced and flows downwards, heat exchange is performed through the pipe wall during the flowing process, a certain amount of heat is absorbed from the protein powder and returns to the aeration pipe 33 to be sprayed out together, the gas containing water vapor flows out from the top of the tank 21, and then is collected and processed by the hot air circulating assembly and input into the hot air pipe 31 again, it should be noted that, the gas in the cold air pipe 32 is mostly from the treated gas, that is, the gas flowing out of the gas outlet pipe 34 is divided into two parts after treatment, one part returns to the hot air pipe 31 while keeping high temperature, and the other part returns to the inlet of the cold air pipe 32 after being changed into low temperature by transferring heat through a heat engine or the like. The rotary air distribution assembly 25 is used for interface transfer because the hot air pipe 31 and the cold air pipe 32 need to rotate along with the stirring shaft 23, but the external interface can not rotate, so the rotary air distribution assembly 25 is needed to eliminate the influence of the rotary motion.

The rotary air distribution assembly 25 comprises a rotary sleeve 251 and an air distribution seat 252, the air distribution seat 252 is installed on the top surface of the tank body 21, the air distribution seat 252 is divided into two horizontal annular chambers by a partition plate, the two chambers are an upper hot air chamber 2521 and a lower cold air chamber 2522 respectively, a section of the stirring shaft 23 located in the hot air chamber 2521 is radially opened to communicate the hot air pipe 31 and the hot air chamber 2521, the rotary sleeve 251 is fixed on the stirring shaft 23, an annular middle rotating chamber is arranged in the rotary sleeve 251, the lower end face of the rotary sleeve 251 is connected with the cold air pipe 32, the rotary sleeve 251 is upwards inserted into the air distribution seat 252, a section of the side face of the rotary sleeve 251 located in the cold air chamber 2522 is provided with a through hole, and the side walls of the hot air chamber 2521 and the cold air chamber 2522 are respectively provided with an external port. As shown in fig. 3, the interface on the sidewall of the hot air chamber 2521 is fixed and serves as an external interface, and is connected to the hot air pipe 31 through a through hole on the stirring shaft 23, and the interface on the sidewall of the cold air chamber 2522 is fixed and serves as an external interface, and is connected to a through hole on the sidewall of the rotating sleeve 251 through the rotating sleeve 251, so as to be connected to the rotating cold air pipe 32.

The hot gas circulating assembly for dewatering the fine dewatering tank 2 comprises a high pressure pipe 41, a low pressure pipe 42, a compressor 43, a drain valve 44, a pressure regulating valve 45 and a water drain pipe 46, wherein the inlet of the compressor 43 is connected with the gas outlet pipe 34, the outlet of the compressor 43 is connected with the drain valve 44, the exhaust end of the drain valve 44 is divided into two parts which are respectively connected with the high pressure pipe 41 and the low pressure pipe 42, the water drain end of the drain valve 44 is connected with the water drain pipe 46, the high pressure pipe 41 is connected with a hot gas cavity 2521, the low pressure pipe 42 is connected with a cold gas cavity 2522, the pressure regulating valve 45 is arranged at the initial position of the low pressure pipe 42, and the cold gas pipe 32 is converged into the aeration pipe 33 through a Venturi pipe 35. As shown in fig. 4, the compressor 43 draws the gas at the top of the tank 21, after compression, the moisture in the gas is liquefied into water, the water is drained at the drain valve 44, the gas is divided into two parts and respectively goes to the hot air pipe 31 and the cold air pipe 32, when the compressor liquefies the water by the compression action of the gas, the water releases heat into the backflow gas to complete better heat recovery action, the high pressure pipe 41 is connected to the hot air pipe 31 to be used as the main stream of the dehydrated hot gas in the tank 21, the low pressure pipe 42 is cooled by a pressure reduction way, the pressure regulating valve 45 exists to ensure that the pressure in the low pressure pipe 42 is lower than the exhaust pressure of the drain valve 44 by a grade, the reduction degree is equal to the local resistance of the pressure regulating valve 45, the venturi pipe 35 is used as an unpowered suction structure, the main flow path of the venturi pipe 35 is from the hot air pipe 31 to the aeration pipe 33, the throat suction port is connected to the cold air pipe 32, the gas pressure in the cold gas pipe 32 is lower than the gas pressure in the hot gas pipe 31, and thus the temperature is lower than the temperature in the hot gas pipe 31.

The hot gas circulation component used for dewatering the fine dewatering tank 2 also comprises a fresh air pipe 47, and the fresh air pipe 47 replenishes air higher than room temperature to the air outlet of the drain valve 44. The gas used for dehydration has some losses during the circulation and the fresh air duct 47 is used for hot gas make-up.

The inner wall of the hot air pipe 31 is provided with a heat preservation layer. High-temperature gas flowing from the core part of the stirring shaft 23 avoids transferring heat to surrounding dry powdery protein powder through the stirring shaft 23, and a heat insulation layer is arranged for heat insulation.

Fins are provided on the side walls of the cold air duct 32. The fins enhance the heat exchange between the gas in the cold air pipe 32 and the surrounding dry powdered protein powder.

The working principle of the invention is as follows: whey stock solution is added into a plurality of rough-removing tanks 1, after most of moisture is removed, then protein powder in a wet state is added into a fine-removing tank 2, a stirring blade 24 in the fine-removing tank 2 drives the protein powder to be mixed with hot air added from an aeration pipe 33, hot gas is sprayed out at the peripheral position of the circumference where the wet protein powder is accumulated in a targeted manner, the dehydration time is saved, heat is not consumed on the dried core protein powder, the heat utilization rate is improved, gas wrapped with water vapor is pumped out from an air outlet pipe 34 and is reused after compression and dehydration, one way is kept in a high-temperature high-pressure state to flow back from a hot air pipe 31 and then is sprayed, and the other way is cooled and depressurized through the cooperation of a pressure regulating valve 45 and a venturi tube 35, the dry protein powder near the stirring shaft 23 is contacted with the cold air pipe 32, part of heat is collected and sprayed to the wet protein powder, and the protein powder in the fine threshing tank 2 is discharged from the powder outlet pipe 92 after being fully dried.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a albumen powder processing is with mixing stirring device which characterized in that: the mixing and stirring device comprises a rough-removing tank (1), a fine-removing tank (2), a discharging pipe group (91) and a powder outlet pipe (92), wherein a plurality of rough-removing tanks (1) are arranged, the discharging ports of the plurality of rough-removing tanks (1) are connected to the feeding port of the fine-removing tank (2) through the discharging pipe group (91), the discharging ports of the fine-removing tanks (2) are connected with the powder outlet pipe (92), and gases higher than room temperature are respectively introduced into the rough-removing tank (1) and the fine-removing tanks (2) for stirring and dewatering;

the mixing and stirring device further comprises a hot gas circulation component, the rough-removing tank (1) and the fine-removing tank (2) are respectively dehydrated through the hot gas circulation component, the hot gas circulation component introduces gas higher than room temperature into the rough-removing tank (1) or the fine-removing tank (2), the hot gas circulation component extracts gas containing water vapor in the rough-removing tank (1) or the fine-removing tank (2), and the hot gas circulation component compresses and dehydrates the gas containing water vapor and then introduces the gas into the rough-removing tank (1) or the fine-removing tank (2) again;

the fine threshing tank (2) comprises a tank body (21), a motor (22), a stirring shaft (23) and stirring blades (24), wherein a feed inlet is formed in the side wall of the tank body (21) and connected with a blanking pipe group (91), a discharge outlet is formed in the bottom surface of the tank body (21) and connected with a powder outlet pipe (92), the motor (22) is arranged above the tank body (21), the motor (22) is downwards connected with the vertically arranged stirring shaft (23), the stirring blades (24) are arranged on the stirring shaft (23), a shaft hole extending along the axis is formed in the stirring shaft (23) and serves as a hot air pipe (31), the hot air pipe (31) introduces gas higher than room temperature from the outside of the tank body (21), an aeration pipe (33) is further arranged on the bottom end side face of the stirring shaft (23), the aeration pipe (33) is connected with the hot air pipe (31), and one end, far away from the bottom of the aeration pipe (33), of the stirring shaft (23), is vertically arranged and is located on the radial periphery of the stirring shaft (23), an outward air outlet pipe (34) is further arranged on the top surface of the tank body (21);

the tank body (21) is internally provided with a cold air pipe (32), the cold air pipe (32) is arranged close to the stirring shaft (23), gas with the temperature lower than that of the hot air pipe (31) is introduced from the outside of the tank body (21) at the upper end of the cold air pipe (32), the lower end of the cold air pipe (32) converges into the aeration pipe (33), the fine desorption tank (2) further comprises a rotary gas distribution assembly (25), the rotary gas distribution assembly (25) is connected with the top end of the hot air pipe (31) and gives a fixed interface outwards, and the rotary gas distribution assembly (25) is also connected with the top end of the cold air pipe (32) and gives a fixed interface outwards;

the rotary air distribution assembly (25) comprises a rotary sleeve (251) and an air distribution seat (252), the gas distribution seat (252) is arranged on the top surface of the tank body (21), the gas distribution seat (252) is internally divided into two horizontal annular chambers by a partition plate, the two chambers are respectively an upper hot air chamber (2521) and a lower cold air chamber (2522), the stirring shaft (23) is positioned in a section of radial opening in the hot air cavity (2521) and is communicated with the hot air pipe (31) and the hot air cavity (2521), the rotary sleeve (251) is fixed on the stirring shaft (23), an annular transit chamber is arranged in the rotary sleeve (251), the lower end face of the rotary sleeve (251) is connected with a cold air pipe (32), the rotary sleeve (251) is upwards inserted into the air distribution base (252), a section of side surface of the rotary sleeve (251) positioned in the cold air chamber (2522) is provided with a through hole, the side walls of the hot air cavity (2521) and the cold air cavity (2522) are respectively provided with an external interface.

2. The mixing and stirring device for protein powder processing according to claim 1, wherein: the hot gas circulation assembly used for dehydration of the fine dehydration tank (2) comprises a high-pressure pipe (41), a low-pressure pipe (42), a compressor (43), a drain valve (44), a pressure regulating valve (45) and a drain pipe (46), wherein the inlet of the compressor (43) is connected with an air outlet pipe (34), the outlet of the compressor (43) is connected with the drain valve (44), the exhaust end of the drain valve (44) is divided into two parts and is respectively connected with the high-pressure pipe (41) and the low-pressure pipe (42), the drain pipe (46) is connected with the drain end of the drain valve (44), the high-pressure pipe (41) is connected with a hot gas cavity (2521), the low-pressure pipe (42) is connected with a cold gas cavity (2522), the pressure regulating valve (45) is arranged at the initial position of the low-pressure pipe (42), and the cold gas pipe (32) is converged into an aeration pipe (33) through a venturi pipe (35).

3. The mixing and stirring device for protein powder processing according to claim 2, wherein: the hot gas circulation component used for dewatering of the fine dewatering tank (2) further comprises a fresh air pipe (47), and the fresh air pipe (47) supplies gas higher than room temperature to the air outlet of the drain valve (44).

4. The mixing and stirring device for protein powder processing according to claim 1, wherein: and the inner wall of the hot air pipe (31) is provided with a heat preservation layer.

5. The mixing and stirring device for protein powder processing according to claim 1, wherein: fins are arranged on the side wall of the cold air pipe (32).