CN108291772A - The method of spray drying system and cleaning systems including modified connection component - Google Patents
The method of spray drying system and cleaning systems including modified connection component Download PDFInfo
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- CN108291772A CN108291772A CN201580084868.7A CN201580084868A CN108291772A CN 108291772 A CN108291772 A CN 108291772A CN 201580084868 A CN201580084868 A CN 201580084868A CN 108291772 A CN108291772 A CN 108291772A
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- valve
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- recovery unit
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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
- F26B3/02—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
- F26B3/10—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 carrying the materials or objects to be dried with it
- F26B3/12—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 carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Drying Of Solid Materials (AREA)
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Abstract
The present invention relates to a kind of spray drying system (1), which includes：Spray dryer, the spray dryer have hothouse (2) and plant air/gas supply device；At least one Powder Recovery unit (4)；Feed-line (11), the feed-line are used for the dusty materials such as the such as fine powder from the Powder Recovery unit；The Powder Recovery unit or the feed-line are connected to clean-in-place CIP devices by connection component (10), the connection component, which includes the CIP pipelines for being configured to transport CIP liquid.The connection component (10) includes health valve (20), the health valve includes the first entrance (12) to the feed-line or Powder Recovery unit, and can move between an open position and a closed and valve member (21), wherein in the closed position, one part of the valve member (21) seals the feed-line (11), and when in the open position, the valve member (21) is mobile to provide the connection between the CIP pipelines (15) and the feed-line (11) or the Powder Recovery unit (4), thus CIP liquid is allowed to enter and leave the health valve (20) by the CIP pipelines (15) and enter the feed-line (11) or the Powder Recovery unit (4) via the first entrance (12).In another aspect of this invention, a kind of method for cleaning spray drying system is described.
Description
Technical field
The present invention relates to a kind of spray drying system, which includes：Spray dryer, the spray dryer
With hothouse and plant air/gas supply device；At least one Powder Recovery unit；Feed-line, the feed-line are used
In dusty materials such as such as fine powders from the Powder Recovery unit；And it is used for the Powder Recovery unit or the delivery pipe
Line is connected to the device of clean-in-place (CIP) device, which includes being configured to transport the CIP pipes of CIP liquid
Line.In addition, the present invention relates to a kind of methods for cleaning spray drying system.
Background technology
In spray drying art, usually there is the high request to the sanitary condition of system.It is current stringent in order to meet
It is required that the drying equipment including spray drying system must satisfy highest design standard, run to avoid in equipment
Product occurs in journey to degrade and pollute.Therefore, it should be minimized from the pollution of the external-to-internal of system, as system must be regular
Thoroughly cleaning is the same.
The cleaning requirement of dry and powder-processed equipment, i.e. so-called arid region can pass through dry or wet or both
Combination meet.Dry method is related to cleaning the surface contacted with product manually, or by allowing high-speed flow from the table discussed
On face air or gas cleaning is carried out through coming.Wet method be related to manually with hose rinse surface or by using automate it is clear on the spot
Clean system (CIP systems) is more effectively carried out.
For example, the essence of dairy products, drug and food means to form the possibility of product deposit on technological equipment surface
Property is existing for reality always.Fat, sugar and the protein content of product existing temperature and humidity condition in process
There is down hygroscopicity and viscosity.For drying equipment, in order to reduce the downtime of equipment, it is equipped with certainly for equipment
Dynamic CIP is typically pertinent and advantageous.The risk of deposit is formed as the run time of equipment increases and increases.Industrial CIP
System can clean individual article or entire process equipment, be related to cleaning nozzle pipeline engineering associated there and instrument
It is integrated into part of appliance together.
Typically, the operation of CIP is controlled by the program of control pump and valve function, and owning for high-efficiency cleaning equipment
Part gives the cleaning sequence best opportunity.It is flexible to modernize CIP devices, and can select different washing procedures,
Just as program software includes rule of thumb changing and adaptation is washed with needing when processing new product or the new operating condition of application
The flexibility for washing program is the same.It further, can for cleaning efficiency, the type of cleaning time or used chemicals and amount
The different specific products of energy develops individual program.
In fact, CIP devices can for example using three can system in four kitchens tank CIP, (the 4th tank be for cleaning pocket type mistake
Filter).When being changed to another clean solution from a kind of clean solution, which ensure that minimum free time.The kitchens CIP quilt
It is designed to reuse and recycle rinse water and cleaning liquid, and the directly or indirectly heating liquid during cleaning.Also
It is caustic sodium concentration and acid concentration to be measured in cyclic process, and supplemented automatically to reach optium concentration.
CIP supply lines are equipped with remote operation valve and CIP transfer pumps.Reflux pipeline is equipped with conductivity probe and is used for
Caustic alkali, acid and water are led to the remote operation valve of each tank or eduction gear.
The complexity of cleaning solution is particularly evident in the spray drying system including feed-line, these feed-lines
For dusty material to be transported to from Powder Recoveries units such as the such as cyclone separators and bag filter in hothouse downstream
For example the upstream units such as hothouse itself or it is transported to such as VIBRO-FLUIDIZERTMOr fluid bed etc. finishes processing unit,
To handle the material given off from hothouse.Typically, such feed-line was configured in the normal operating phase
Between transport in fine powder (least part of powder-product) form dusty material, i.e., so-called fine powder return system.In order to clear
Powder Recovery unit is connected to feed-line and feed-line, pipeline engineering is connected to phase by clean Powder Recovery unit itself
The transfer device for closing part is not connect with product pipeline, and is attached to CIP devices, with allow CIP liquid wash transfer device,
Powder Recovery unit itself and adjacent channel engineering.In such a system, certainly it is essential that, use air/gas
The feed-line of the thorough xeraphium later and decadent stage of a school of thought, will not be damaged with the powder stream ensured in feed-line by any residual moisture.
The cleaning solution of spray drying system including this reflux feed-line is typically to take, because so far
What is had been carried out is that some parts by spray drying system disconnect with production flow line and are attached partially to clean by these manually
System.Further, during being CIP patterns from operation mode conversion, i.e., the various pieces of system ought be connected and disconnected from
When because clean part by disconnected from cleaning systems and in the period of again connecting between production flow line in it is sudden and violent
It is exposed to ambient air outside and environment, so there are pollution risks.CIP devices also typically include flexible hose, to simplify from behaviour
Operation mode is to the conversion of CIP patterns, and vice versa；However, such flexible hose stays in a certain amount of liquid not with pack
Risk in the pocket that can be drained is related.Finally, it is necessary to extreme care, to ensure through transfer device and/or Powder Recovery
The connector that CIP pipelines are connect with feed-line part is sealing by unit and any ancillary equipment, to will not CI happened P
Liquid leakage.
Invention content
Therefore, in this context, the invention aims to provide a kind of spray drying system, spray drying system drop
The risk of the low pollution before and after, during CIP processes, and keep CIP processes more time saving and simpler.
In addition, the purpose of the present invention is promote the whole of spray drying system to grasp by designing more effective CIP processes
Make condition.
In the first aspect of the present invention, these and other are reached by the spray drying system of type mentioned in introduction
Purpose, in addition, the spray drying system is characterized in that the attachment device includes connection component, which includes at least
One health valve, the health valve include first entrance to the feed-line or the Powder Recovery unit and can be in open positions
Set the valve member moved between closed position, wherein in the closed position, a part of the valve member seals the delivery pipe
Line, and when in the open position, which moves to provide the CIP pipelines and the feed-line or the Powder Recovery
Thus connection between unit allows CIP liquid to enter or leave the health valve for connecting the CIP pipelines and via described the
One entrance enters or leaves the feed-line or the Powder Recovery unit.
Health valve is provided to allow to also establish CIP pipelines and feed-line at any time under the operation mode of system
Between connection.Therefore, CIP processes can be executed in the case where not disconnecting any part and spray drying system.Therefore,
No pollutant can enter from ambient enviroment in the period of during being transformed into normal operating from CIP patterns.Health valve
Another advantage provided is no matter when to need CIP processes, it can reduce the manual labor needed for operator in legacy system
It is dynamic, and legacy system needs that the multiple portions of spray drying system are disconnected and reconnected manually.Therefore, spray drying system
Normal operating can be under higher percentage of time, to make the ability higher of spray dryer.Spray drying system
It is safer, because no pollutant can enter feed-line, the connector as not being likely to result in CIP liquid leakage risks
It disconnects and reconnects.The system can be remote operation or automation, to which operator only needs in CIP and normal operating
Between switch.The downtime of process pipelines will be further reduced in this.
Furthermore, it is possible to purify not used conveyance conduit in process of production, grown in pipe-line to avoid bacterium.
Previously in the art for allowing valve to be between CIP systems and spray drying system, there are prejudice, because if
It is not properly separated and might mean that the contaminated risk of spray dried products.One the reason is that, existing valve be directed to powder
Or liquid or gas are designed, but it is not suitable for all three elements.
Term " health " in the art means that this health valve is designed to meet dependent on each of management organization
The strict demand that kind authorizes.Therefore, term " health ", which refers to equipment, should meet relevant laws and regulations, especially AAA (U.S.) and/or
EHEDG (European Union) guide.Typically, hygienic requirements mean the relevant portion of valve be designed to it is such and by it is polished not
Rust steel or suitable polymer, which are made, efficiently to be cleaned and sterilizes to ensure, and the wind of material and/or cleaning fluid residue
Danger is very limited.
In the preferred embodiment, which is sanitary faucet valve, wherein one part of the valve member is by filling in
It holds and constitutes, which is used to seal the feed-line in the closed position and for realizing the open position by retracting movement
It sets.It is firmly established in the art using common plug valve, and this valve is very reliable in operation.However, of the invention
Use the sanitary faucet valve suitable for powder, liquids and gases.
Alternatively, as long as hygienic requirements can be met, plug valve can also be replaced using other valves.Suitable valve
Example include ball valve, segment valve, butterfly valve, knife valve and gate valve.
In an embodiment of the present invention, the inner surface engaged with feed-line at the plug end of the valve member has and delivery pipe
The identical shape of line.In the further development of the embodiment, feed-line is with cylinder shape, and therefore, valve member
Plug end have curvature corresponding with the internal diameter of the cylindrical delivery pipeline.This has the following advantages that：When valve is in its closing
When position, plug end substantially will form continuous surface with the inside of feed-line.Accordingly, it is possible to block the angle of conveyed material
Fall, edge etc. will be less.When material has certain hygroscopicity and viscosity, this is even more important, in this case, production
Quality may be decreased, and pollution may occur, and next cleaning becomes more troublesome.
In another embodiment, sealing element is set on the plug end of valve member so that when valve is in its closed position,
The sealing of air proof/gas is formed between valve and feed-line.This sealing element ensures in the normal operation period, works as valve
When in its closed position, pollutant can not enter system from external environment or CIP pipelines.
In another embodiment of the present invention, gap is formed between the side surface and feed-line at the plug end of valve member,
In, when valve is in its closed position, which is formed in the position between feed-line and CIP pipelines.In this way, due to
Higher tolerance can be used in the manufacturing process at the plug end of valve member, and when the valve is in a closed position can be to avoid plug
Any edge at end enters feed-line.
In another embodiment of the invention, sanitary faucet valve includes both sealing element and gap, and close stance is in valve
The sealing element forms the sealing of air proof/gas between the plug end of valve member and feed-line when setting, which is in should
Between the plug end of valve and feed-line so that prevent pollutant from entering from external environment or CIP systems by sanitary faucet valve, but
It can enter feed-line to avoid any edge at plug end when the valve is in the closed position simultaneously.
In another embodiment, which continues across at least part at plug end so that forms channel.Therefore, work as valve
When in its closed position, clean purification air/gas can be blown by gap so that the material in feed-line is not
The gap can be entered.This is by being blown into only by the channel and gap under pressure more higher than pressure in feed-line
Change air/gas to realize.Such advantage is that hygroscopic material adheres to the plug end of valve member or dusty material enters plug end
The risk in the gap between feed-line can be relatively low.
In further aspect of the invention, a kind of method for cleaning the spray drying system of the above-mentioned type is provided.
Wherein when system is in normal operating, sanitary faucet valve is in the closed position, and this approach includes the following steps：
Determination will start cleaning process,
The health valve is moved to the open position from the closed position,
CIP liquid is supplied to the health valve in the open position by the CIP pipelines,
After the cleaning of the system is completed, the CIP liquid is drained from the system,
It is blown into air/gas by the health valve to dry the system,
The valve is moved to the closed position,
Restart normal operating.
The method ensures during being converted to CIP from production, during CIP or is being converted back to normal behaviour
Spray drying system need not be dismantled during work.It reduce the risks that pollutant enters spray drying system, because it is more
A part is not exposed to dirty external environment.
In further embodiment of the present invention, this method includes when valve is in its closed position by sanitary faucet valve
It is blown into purification air/gas, to prevent the material in feed-line from entering plug valve.
In another embodiment of the invention, the air/gas for drying the system after the cleaning is dry from spraying
Dry device plant air/gas supply device supply.In the normal operation period, this air/gas will be used for spray dryer
In system or for (multiple) drying unit afterwards.It reduce use the heater being included in spray drying system and pump
The cost of the CIP systems of system.
In another embodiment of the present invention, according to the abovementioned embodiments of the present invention, this method is in startup and completion
Automatically.Response based on the sensor in system or regulatory demand, CIP programs can be activated or plan.
Description of the drawings
This hair will be more fully described by the non-limiting examples of this preferred embodiment and with reference to schematic figures below
It is bright, in the accompanying drawings：
Fig. 1 shows the schematic diagram of the spray drying system of the prior art；
Fig. 2 shows the flows in operation mode and CIP patterns for the spray drying system for indicating respectively the prior art
Functional flow diagram；
Fig. 3 a show schematic flow chart when in normal manipulation mode of the spray drying system of the prior art；
Fig. 3 b show schematic flow chart when in CIP patterns of the spray drying system of the prior art；
Fig. 4 shows the schematic flow chart of the embodiment of spray drying system according to the present invention；
Fig. 5 a show schematic stream when in normal manipulation mode of another spray drying system of the prior art
Cheng Tu；
Figure 5b shows that schematic flow charts when in CIP patterns of another spray drying system of the prior art；
Fig. 6 shows the schematic flow chart of another embodiment of spray drying system according to the present invention；
Fig. 7 shows the schematic overview of another embodiment of spray drying system according to the present invention；
Fig. 8 show according to an embodiment of the invention in section of sanitary faucet valve when being in its closed position；
Fig. 9 shows the amplifier section of the details of sanitary faucet valve shown in fig. 8；
Figure 10 is view corresponding with Fig. 8, and wherein sanitary faucet valve is in its open position；
Figure 11 is the partial view of the sanitary faucet valve of the further embodiment of spray drying system according to the present invention；And
And
Figure 12 to Figure 14 shows the view corresponding with Fig. 8 to Figure 10 of the still further embodiment of the present invention.
Specific implementation mode
Fig. 1 shows the schematic diagram of the critical piece of spray drying system 1.In a way known, spray drying system
System 1 includes the spray dryer with hothouse 2 and plant air/gas supply device 3, typically comprises air/gas point
Dissipate device.It should be pointed out that term " gas " will be used together as " air/gas " and should be solved with term " air "
It is interpreted as covering any gas for the process gas being suitable as in this spray drying system.Hothouse 2 also incorporates atomization dress
It sets, such as nozzle and/or atomizing wheel.
In the lower end of hothouse 2, it is provided with the outlet 5 for drying material.In the spray drying system 1 shown in,
Provide the post-processing unit in 6 form of vibration or static fluid bed.At one end, vibration or static fluid bed 6 are received from dry
The drying material of the outlet 5 of dry room 2, to carry out being further processed for material, then in the another of vibration or static fluid bed
Collect the material in the outlet at end.There may also be further but unrelated to the invention downstream equipments.
In addition, spray drying system 1 includes at least one Powder Recovery unit 4, particle is entrained in plant air/gas
Useless plant air/gas conducted to the Powder Recovery unit via exhaust line 7.Powder Recovery unit 4 can take whirlwind
Separator or bag filter, or any combination thereof form.
It is used to dusty material of the recycling in Powder Recovery unit 4 being transported to positioned at arbitrary provided with feed-line 11
The equal upstreams equipment of the such as hothouse 2 of position itself, or it is transported to the vibration for being similarly positioned in any position or static fluid bed
6.Typically, for the material recycled in the form of fine powder, fine powder is that have satisfactory ingredient but further locate with needs
Reason is to meet the size of quality requirement and/or the dusty material of configuration.Fine powder returns to the introducing position allusion quotation in upstream units
The size for depending on material to type and/or the prevailing operating conditions in configuration and hothouse 2 and vibratory liquefaction device 6.The system
In there is also reversal valve 9, to ensure the appropriate distribution of the fine powder returned.
At the lower end of each Powder Recovery unit 4, be provided with transfer device 70 for by powder from Powder Recovery list
Member 4 is transferred to feed-line 11.In the system of the prior art, this transfer device typically (has feed by rotary valve
The blowing rotary valve (blow through rotary valve) or dirty rotary valve (drop through rotary of boots
Valve)), to allow blowing over for air/gas, to ensure transport of the fine powder in feed-line.
When the spray drying system 1 of the prior art carries out CIP processes according to specified CIP schemes, system is needed from just
Normal operation mode is switched to CIP patterns.In order to allow system to be operated under both normal manipulation mode and CIP patterns, there are use
In the device of connection Powder Recovery unit 4 and feed-line 11.Go out as indicated in Fig. 2, switching between these two modes
It is related to being formed the connector 81,82,83,84 of a part for prior art attachment device from the multiple portions to CIP devices 8
It is separated on the feed-line 11 of (being shown as CIP pipelines 85,86,87 in figure).From one mode to the conversion of another pattern
It is to be manually performed by being disconnected from normal manipulation mode by the multiple portions of spray drying system and connecting CIP devices.
Once CIP processes are completed, it is necessary to manually perform reversed disconnection and connection.
Hereinafter, spray drying system according to the present invention will be described.With identical as prior art systems, similar or
The element of corresponding function will be indicated with the identical reference numeral with the explanation of prior art spray drying system.
Referring now specifically to the detailed description of Fig. 8 to Figure 10, the connection of spray drying system 1 according to the present invention will be described
Component 10.It should be pointed out that will only be described in detail the spray drying system including CIP devices according to the present invention in Fig. 2
Shown in include CIP devices 8 those of 1 difference of prior art spray drying system part.
Connection component 10 includes the health valve for being suitble to type.In this preferred embodiment being described below, health valve is to defend
Raw plug valve 20, the sanitary faucet valve include to the first entrance 12 of feed-line 11 and can be in open position and close stance
The valve member 21 moved between setting, wherein in closed position, the plug end 22 of valve member 21 seals feed-line 11, and works as and be in
When open position, valve member 21 is retracted to provide the connection between CIP pipelines 15 and feed-line 11.During CIP, and
As will be described in more detail, the CIP liquid from CIP feeding mechanisms 16 allows to enter sanitary faucet by CIP pipelines 15
Valve 20 simultaneously enters feed-line 11 via the first entrance 12, and is left to CIP eduction gears 17 by CIP pipelines 15.
20 part related to the present invention of sanitary faucet valve is described in more detail below.It should be understood that sanitary faucet
The other elements of valve 20 are well-known, such as GEA Tuchenhagen companies is commercially availableC-type
Valve.
It will also be appreciated that health valve 20 can be formed as and/or as have two or more working conditions (including
Unactuated state and one or more actuating states) two-port valve or triple valve or even more accesses valve.It is adapted to the health
Valve with provide requirement and configuration port and access in the limit of power of those skilled in the art.
In a preferred embodiment, the inner surface 23 engaged with feed-line 11 at valve member plug end 22 has and feed-line
11 14 identical shape of inner surface.Specifically, inner surface 23 is formed as the part for being adapted to the cylindrical shape of feed-line 11
Cylindrical surface.
In order to ensure the powder stream in feed-line 11 is detached with the holding of CIP pipelines 15 always, in valve member 21 and conveying
Between pipeline 11, in an illustrated embodiment i.e. valve member plug end 22 side surface 26 with surround feed-line 11 wall 18 it
Between be arranged sealing element 24.
Cylindrical delivery pipeline 11 and square in addition to shown in may be used in feed-line 11 itself and encirclement wall 18 in principle
Any suitable form except shape wall 18.Figure 11 shows a kind of alternative solution, and wherein Powder Recovery unit (not shown) is fallen
Pipe 41 is connected to connection component 10.However, equally in this embodiment, valve member plug is formed according to the inner surface 44 for falling pipe 41
The inner surface at end 22.
In an illustrated embodiment, the size of sanitary faucet valve 20 is selected such that when valve member 21 is in its closing
When position, gap 25 is formed between the side surface 26 and the wall 18 for surrounding feed-line 11 at valve member plug end 22.In gap 25
That end towards feed-line 11 form second entrance 13.
In a particular embodiment, gap 25 extends to second entrance 13 into feed-line 11 from sealing element 24.
In the preferred embodiment of Fig. 8 to Figure 10, flushing valve 30 is connected to feed-line 11.Flushing valve, which is equipped with, is used for technique
The entrance 31 of air/gas, so that air/gas to be introduced into feed-line 11.In a preferred embodiment, flushing valve 30
Position is very close to feed-line 11.As an alternative, Figure 12 to Figure 14 illustrates the difference of plant air/gas and enters position
It sets.
In addition, in an illustrated embodiment, when the position of valve member 21 is as shown in Figure 8, i.e., also in sanitary faucet valve 20
Closed state under, flushing valve 30 is in by gap 25 and feed-line 11 and is fluidly connected, and can pass through second entrance 13 will
Air/gas is introduced into feed-line 11.
It is compared to the corresponding prior art systems shown in Fig. 3 a-3b and Fig. 5 a-5b, will especially join now respectively
Schematic flow diagram and the system overview of Fig. 4, Fig. 6 and Fig. 7 are examined to describe the operation of spray drying system 1 according to the present invention.It answers
, it is noted that following description is made with specific reference to this preferred embodiment of the health valve 20 of connection component 10.Have
The operation of the system of other kinds of health valve is executed in a manner of corresponding to certain types of health valve.
Referring initially to Fig. 6, it is noted that be provided with health valve 20 in several positions of spray drying system 1.Although
Reading, which includes the attached drawing of any symbol, will make those skilled in the art clear immediately, but only four health valves in these health valves
It is marked with reference numeral 20, to be described below (in figure 6 from left to right)：
In first position, health valve 20 is two-way valve, is to close and work as to be actuated to it under unactuated state
Powder Recovery unit 4 is connect with CIP pipelines 15 when open position.
In the second position, health valve 20 is triple valve, and powder is provided under unactuated state in feed-line 11
It is accessible to transport and provide connection between feed-line 11 and CIP pipelines 15 when activated, as described above.
In the third place, health valve 20 has configuration corresponding with the health valve 20 of the second position but positioned at shown in Fig. 6
The downstream of all powder recovery unit 4 of the spray drying system 1 of embodiment.
Finally, in the 4th position, health valve 20 is triple valve but has another flow arrangement.
Such as from Fig. 6 clearly, there may also be further health valves in spray drying system.
The startup of CIP processes will determine or be programmed to according to predetermined time table to automatically begin to.Heretofore, normally
Operation continues and health valve 20 is in the closed position.
After starting CIP processes, health valve 20 is moved to open position from closed position.It is moved as valve member 21
As a result, providing the connection between CIP pipelines 15 and feed-line 11.With reference to the foregoing description about Fig. 6, this correspond to about
The health valve of second position description.
CIP liquid is supplied to the sanitary faucet valve for being now arranged in open position by CIP pipelines 15 from CIP feeding mechanisms 16
20.Allow the CIP liquid from CIP feeding mechanisms 16 to enter health valve 20 and flow to feed-line via first entrance 12
In 11.
During CIP, CIP liquid is also supplied to Powder Recovery unit 4 by another pipeline (not shown).Typically,
CIP liquid is supplied at top in cyclone separator, bag filter or other Powder Recovery units.
After the completion of CIP processes, CIP liquid is drained from the system.Feed-line 11 is discharged through sanitary faucet valve
20 first entrance 12 carries out because allow CIP liquid left from feed-line 11 by CIP pipelines 15 and further to
CIP eduction gears 17.
CIP liquid from Powder Recovery unit 4 is by transfer device 70 and further passes through the health in the second position
Valve 20 and health valve 20 in above-mentioned first position are drained.
After CIP fluid drainages, air/gas is blown by corresponding health valve 20, with the dry system.Air/
Gas can have any suitable ingredient and temperature, but typically heated air/gas.
Once relevant portion is fully dry, health valve will be moved into closed position, and as final step, again
Start normal operating.
In the embodiment of spray drying system described above, following extra step can also be performed in the normal operation period
Suddenly, that is, it is blown into purification air/gas and passes through health valve, to prevent the material of feed-line from entering health valve.
Preferably, the air/gas for drying the system after the cleaning is plant air/gas from spray dryer
The supply of body feeding mechanism.Under any circumstance, since this air/gas will be used for dry one or more cyclone separators
Or other (multiple) Powder Recovery units, it is achieved that the saving of gross energy, because not needing individual air/gas heating
Unit dries the system.
The process of the method for the present invention can step executes automatically to the end from first step.
Those skilled in the art, which recognize, is by no means restricted to above preferred embodiment.On the contrary, in the model of appended claims
It is possible to enclose interior many modifications and variations.
Claims (12)
1. a kind of spray drying system (1), including
Spray dryer, the spray dryer have hothouse (2) and plant air/gas supply device (3),
At least one Powder Recovery unit (4),
Feed-line (11), the feed-line are used for the dusty materials such as the such as fine powder from the Powder Recovery unit (4), and
Device for the Powder Recovery unit (4) or the feed-line (11) to be connected to clean-in-place (CIP) device (8),
The clean-in-place device includes the CIP pipelines (15) for being configured to transport CIP liquid,
It is characterized in that,
The attachment device includes connection component (10), which includes at least one health valve (20), the health valve packet
Include the first entrance (12) to the feed-line (11) or the Powder Recovery unit (4) and can be in open position and close stance
The valve member (21) moved between setting, wherein in the closed position, a part (22) of the valve member (21) seals the conveying
Pipeline (11), and when in the open position, the valve member (21) is mobile to provide the CIP pipelines (15) and the delivery pipe
Thus connection between line (11) or the Powder Recovery unit (4) allows CIP liquid to enter or leave and connects the CIP pipelines
(15) the health valve (20) and enter or leave the feed-line (11) via the first entrance (12) or the powder returns
Receive unit (4).
2. spray drying system according to claim 1, wherein the health valve is sanitary faucet valve (20), in the health
In plug valve, one part of the valve member is constituted by filling in end (22), which is used to seal this in the closed position defeated
Send pipeline (11) or the Powder Recovery unit (4) and for realizing the open position by retracting movement.
3. spray drying system according to claim 2, wherein the valve member plug end (22) with the feed-line (11)
Or the inner surface (23) of the Powder Recovery unit (4) engagement has and the feed-line (11) or the Powder Recovery unit (4)
The identical shape of inner surface (14), the form on preferably cylinder surface.
4. according to the spray drying system described in any one of claim 2 and 3, wherein in the valve member (21) and the conveying
It is somebody's turn to do between pipeline (11) or the Powder Recovery unit (4), preferably in the side surface (26) at the valve member plug end (22) and encirclement
Sealing element (24) is set between feed-line (11) or the wall (18) of the Powder Recovery unit (4).
5. spray drying system according to claim 4, wherein when the valve member (21) is in its closed position at this
The side surface (26) at valve member plug end (22) and the wall for surrounding the feed-line (11) or the Powder Recovery unit (4)
(18) gap (25) are formed between, and wherein, is provided with to the second entrance of the feed-line in the end in the gap (25)
(13)。
6. according to the spray drying system described in claim 4 and 5, wherein the gap (25) is in the sealing element (24) and extremely
Extend between the feed-line (11) or the second entrance (13) of the Powder Recovery unit (4).
7. spray drying system according to any one of the preceding claims, wherein flushing valve (30) is connected to the conveying
Pipeline (11) or the Powder Recovery unit (4).
8. according to the spray drying system described in claim 5,6 and 7, wherein the flushing valve (30) is via the gap (25)
It is in and fluidly connects with the feed-line (11) or the Powder Recovery unit (4), purified with being introduced by the second entrance (13)
Air/gas.
9. a kind of method for cleaning spray drying system according to any one of claim 1 to 8, wherein when this
When system is in normal operating, the health valve is in the closed position, and this approach includes the following steps：
Determination will start CIP processes,
The health valve is moved to the open position from the closed position,
CIP liquid is supplied to the health valve in the open position by the CIP pipelines,
After the CIP processes of the system are completed, CIP liquid is drained from the system,
It is blown into air/gas by the health valve to dry the system,
The health valve is moved to the closed position,
Restart normal operating.
10. the method according to claim 9 for cleaning spray drying system, wherein in the normal operation period, pass through
The health valve is blown into purification air/gas to prevent the material in the feed-line from entering the plug valve.
11. method according to claim 9 or 10, wherein the air/gas for drying the system after the cleaning is
It is supplied by the plant air/gas supply device of the spray dryer.
12. the method according to any one of claim 9 to 11, wherein the process from first step step to the end is
Automatically it executes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DK2015/050334 WO2017076411A1 (en) | 2015-11-03 | 2015-11-03 | Spray drying system including an improved connection assembly and method of cleaning the system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108291772A true CN108291772A (en) | 2018-07-17 |
| CN108291772B CN108291772B (en) | 2020-06-09 |
Family
ID=54540781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580084868.7A Active CN108291772B (en) | 2015-11-03 | 2015-11-03 | Spray drying system comprising an improved connection assembly and method of cleaning a system |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3371536B1 (en) |
| CN (1) | CN108291772B (en) |
| AU (1) | AU2015413693B2 (en) |
| DK (1) | DK3371536T3 (en) |
| NZ (1) | NZ742309A (en) |
| PL (1) | PL3371536T3 (en) |
| WO (1) | WO2017076411A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230349468A1 (en) | 2020-07-21 | 2023-11-02 | Gea Tuchenhagen Gmbh | Valve Device |
| CN112556328A (en) * | 2020-11-26 | 2021-03-26 | 安徽荷金来农业发展股份有限公司 | A high-efficient drying device for beef production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1185360B1 (en) * | 1999-06-08 | 2003-09-10 | Niro A/S | A process and a plant for spray drying |
| WO2008110623A2 (en) * | 2007-03-15 | 2008-09-18 | Janssen Pharmaceutica N.V. | Filter assembly containing metal fiber filter elements |
| WO2008122288A1 (en) * | 2007-04-10 | 2008-10-16 | Anhydro A/S | Process gas filtration |
| CN101466454A (en) * | 2006-06-12 | 2009-06-24 | 阿尔斯托姆科技有限公司 | Integrated dry and wet flue gas cleaning process and system |
| CN102483302A (en) * | 2009-07-20 | 2012-05-30 | 基伊埃工程技术股份有限公司 | Method for drying a fluid or wet product, and drying apparatus for carrying out the method |
| CN103338849A (en) * | 2010-10-29 | 2013-10-02 | 维利科医学公司 | System and method for spray drying a liquid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK0572356T3 (en) * | 1992-05-26 | 1997-04-21 | Niro Aeromatic Ag | Device and method for wet cleaning of filter cartridges in fluidised bed appliances, spray dryers and fluid bed systems |
| JP3096611B2 (en) * | 1995-04-28 | 2000-10-10 | 藤崎電機株式会社 | Equipment for spray drying and fluidized granulation |
-
2015
- 2015-11-03 EP EP15794074.3A patent/EP3371536B1/en active Active
- 2015-11-03 CN CN201580084868.7A patent/CN108291772B/en active Active
- 2015-11-03 PL PL15794074T patent/PL3371536T3/en unknown
- 2015-11-03 NZ NZ742309A patent/NZ742309A/en unknown
- 2015-11-03 DK DK15794074.3T patent/DK3371536T3/en active
- 2015-11-03 AU AU2015413693A patent/AU2015413693B2/en active Active
- 2015-11-03 WO PCT/DK2015/050334 patent/WO2017076411A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1185360B1 (en) * | 1999-06-08 | 2003-09-10 | Niro A/S | A process and a plant for spray drying |
| CN101466454A (en) * | 2006-06-12 | 2009-06-24 | 阿尔斯托姆科技有限公司 | Integrated dry and wet flue gas cleaning process and system |
| WO2008110623A2 (en) * | 2007-03-15 | 2008-09-18 | Janssen Pharmaceutica N.V. | Filter assembly containing metal fiber filter elements |
| WO2008122288A1 (en) * | 2007-04-10 | 2008-10-16 | Anhydro A/S | Process gas filtration |
| CN102483302A (en) * | 2009-07-20 | 2012-05-30 | 基伊埃工程技术股份有限公司 | Method for drying a fluid or wet product, and drying apparatus for carrying out the method |
| CN103338849A (en) * | 2010-10-29 | 2013-10-02 | 维利科医学公司 | System and method for spray drying a liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015413693A1 (en) | 2018-05-24 |
| CN108291772B (en) | 2020-06-09 |
| PL3371536T3 (en) | 2020-04-30 |
| NZ742309A (en) | 2022-12-23 |
| WO2017076411A1 (en) | 2017-05-11 |
| EP3371536A1 (en) | 2018-09-12 |
| EP3371536B1 (en) | 2019-10-23 |
| DK3371536T3 (en) | 2020-01-06 |
| AU2015413693B2 (en) | 2021-06-24 |
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