CN102141338A - Drying device and replacement method of non-active gas - Google Patents
Drying device and replacement method of non-active gas Download PDFInfo
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- CN102141338A CN102141338A CN2011100387383A CN201110038738A CN102141338A CN 102141338 A CN102141338 A CN 102141338A CN 2011100387383 A CN2011100387383 A CN 2011100387383A CN 201110038738 A CN201110038738 A CN 201110038738A CN 102141338 A CN102141338 A CN 102141338A
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Abstract
The invention provides a drying device which can perform non-active gas replacement to a storage trough with high efficiency and can prevent powder particles from deterioration during drying, and a replacement method of non-active gas using the drying device. The drying device comprises a storage trough (11) for storing powder particles; the drying device (1) for drying powder particles under approximately atmospheric pressure comprises a pump (41) for decompressing the storage trough (11), and a nitrogen generation device (21) for supplying nitrogen to the storage trough (11); the pump (41) for decompressing the storage trough (11) supplies nitrogen from the nitrogen generation device (21) to the storage trough (11).
Description
Technical area
The non-active gas method of replacing that the present invention relates to drying device and be used in this drying device in detail, relates to powder is carried out dry drying device and the method for replacing that is used in the non-active gas of this drying device.
Background technology
Always, under situations such as plastic shaping, use drying device in advance the powders such as plastic grain as moulding material to be carried out drying and handle.
As such drying device, have for example to make the dry air that heated flow into the dry route of the sealing that comprises the drying hopper of storing powder, make the drying device (with reference to following patent documentation 1) of powder drying.
Patent documentation 1: the spy opens flat 10-185433 communique
Summary of the invention
Yet the drying device of record in the above-mentioned patent documentation 1 makes the dry air that heated flow into the dry route of sealing.Therefore there is the oxygen that comprises in the dry air can make powder oxidation, the situation of powder deteriorations such as flavescence.
For the situation that prevents such powder deterioration takes place, worked out method with the air in the dry route of non-active gas displacement sealing.
But,, sometimes then can reduce the effect that prevents the powder deterioration if it is insufficient to seal the displacement that utilizes non-active gas to carry out in the dry route.And seal the displacement spended time that utilizes non-active gas to carry out in the dry route, can be corresponding prolongation drying time.
Therefore the object of the present invention is to provide the air that can utilize expeditiously in the non-active gas displacement retention basin, can prevent the drying device of the situation of generation powder deterioration in dry run and the method for replacing that is used in the non-active gas of this drying device.
In order to solve above-mentioned existing problems, the described invention drying device of claim 1, possesses the retention basin of storing powder, flow to the air-flow generation means of the air-flow of described retention basin, and the heater means that the air-flow that flows to described retention basin from described air-flow generation means is heated, under normal pressure, powder is carried out drying, it is characterized in that, possess the decompression means that make described retention basin decompression, described retention basin is provided the non-active gas supply mean of non-active gas, and described decompression means and described non-active gas supply mean are controlled, to utilize described decompression means that described retention basin is reduced pressure, will offer the control device of described retention basin from the non-active gas that described non-active gas supply mean comes.
If adopt such structure, on one side then can utilize control device to make decompression in the retention basin, Yi Bian provide non-active gas to retention basin.That is to say, Yi Bian Yi Bian the air that can actively discharge in the retention basin provides non-active gas to retention basin.
Therefore, and only provide the situation of non-active gas to compare, can carry out the non-active gas displacement to retention basin expeditiously to retention basin.
Consequently, can prevent that powder from the situation generation of deterioration taking place in dry run.
Again, the described invention of claim 2, be in the described invention of claim 1, it is characterized in that, described control device is when utilizing described decompression means to reduce pressure or after the decompression, control described decompression means and described non-active gas supply mean, offer described retention basin with the non-active gas that described non-active gas supply mean is come.
If adopt such structure, then can provide non-active gas to retention basin utilizing the decompression means positively to make under the state that reduces pressure in the retention basin.
Therefore can be with higher efficient to carrying out the non-active gas displacement in the retention basin.
Again, the invention of claim 3 record, be in claim 1 or the 2 described inventions, it is characterized in that, described control device is utilizing described decompression means to make described retention basin decompression midway, control described decompression means and described non-active gas supply mean, offer described retention basin with the non-active gas that described non-active gas supply mean is come.
If adopt such structure, then can at first utilize the decompression means to make retention basin decompression, then before utilizing the decompression means to reduce pressure to finish (promptly utilizing the decompression means to make the retention basin decompression midway), can provide non-active gas to retention basin., begin retention basin supplied with non-active gas after, utilize decompression means reduce pressure time finish before in, can continue utilize decompression means retention basin reduced pressure, simultaneously non-active gas be offered retention basin thereafter.
Therefore, can at first utilize initial decompression that the more than half air of retention basin is discharged, the air in the retention basin reduces thereafter, in the moment that effect of easing stress reduces, can on one side the air in the retention basin be discharged, on one side non-active gas is provided in retention basin.
Consequently, can be with higher efficient to carrying out the non-active gas displacement in the retention basin.
Again, the described invention of claim 4, be in each the described invention in claim 1～3, it is characterized in that possessing between the decompression route between described retention basin and the described decompression means, supply with route and be connected in the backflow route on described non-active gas supply route and the described decompression route, described non-active gas supply route, described retention basin, described decompression route and described backflow route formation closed course between the non-active gas between described non-active gas supply mean and the described retention basin.
If adopt such structure, then can utilize decompression means and non-active gas supply mean, after making in the closed course decompression and it being carried out the non-active gas displacement, keep the concentration of the non-active gas in the closed course.
Therefore, can keep non-active gas concentration in the retention basin after the non-active gas displacement.
Again, the described invention of claim 5, be in the described invention of claim 4, it is characterized in that, described air-flow generation means are arranged in the described closed course, and described control device is when described air-flow generation means drive, or the driving of described air-flow generation means makes described decompression means drive before, control described non-active gas supply mean, it is driven when described decompression means drive or after the driving of described decompression means.
If adopt such structure, then can under the state of decompression means work, make the work of air-flow generation means.
Therefore, utilize the decompression means with the air in the closed course when discharge the outside, the air in the closed course can be sent to the decompression means from air-flow generation means, can make decompression in the closed course expeditiously.
Can under the state of decompression means work, make the work of non-active gas supply mean again.
Therefore, can with the air in the closed course when discharge the outside or with the air in the closed course after discharge the outside, to non-active gas is provided in the closed course, can make expeditiously to be full of non-active gas in the closed course.
Consequently can replace carrying out non-active gas in the retention basin expeditiously energetically with higher efficient with the air in the non-active gas displacement closed course.
Again, the described invention of claim 6 is the method for replacing of the non-active gas of drying device, possesses the retention basin of storing powder, flow to the air-flow generation means of the air-flow of described retention basin, and the heater means that the air-flow that flows to described retention basin from described air-flow generation means is heated, roughly under the normal pressure powder is being carried out in the dry drying device, it is characterized in that, described drying device possesses, make the decompression means of described retention basin decompression, and the non-active gas supply mean that described retention basin is provided non-active gas, utilize described decompression means to make described retention basin decompression, provide described non-active gas supply mean next non-active gas described retention basin.
If adopt such structure, then can be on one side to reducing pressure in the retention basin, on one side provide non-active gas to retention basin.That is to say, Yi Bian can energetically the air in the retention basin be discharged, Yi Bian provide non-active gas to retention basin.
Therefore, and only provide the situation of non-active gas to compare, can carry out the non-active gas displacement to retention basin expeditiously retention basin.
Again, the described invention of claim 7 is in the described invention of claim 6, it is characterized in that, when utilizing described decompression means to reduce pressure or after the decompression, the non-active gas that described non-active gas supply mean is come offers described retention basin.
If adopt such structure, then can provide non-active gas to retention basin utilizing the decompression means positively to make under the state that reduces pressure in the retention basin.
Therefore, can be to carrying out the non-active gas displacement with higher efficient in the retention basin.
If adopt the described invention of claim 1, then can prevent from dry run, to take place the situation of powder deterioration expeditiously to carrying out the non-active gas displacement in the retention basin.
Again, if adopt the described invention of claim 2, then can be with higher efficient to carrying out the non-active gas displacement in the retention basin.
Again, if adopt the described invention of claim 3, then can be with taller efficient to carrying out the non-active gas displacement in the retention basin.
If adopt the described invention of claim 4, then can keep carrying out the concentration of the non-active gas in the retention basin after the non-active gas displacement again.
Again, if adopt the described invention of claim 5, then can be with high efficient to carrying out the non-active gas displacement in the retention basin.
Again, if adopt the described invention of claim 6, then can be expeditiously to carrying out the non-active gas displacement in the retention basin.
Again, if adopt the described invention of claim 7, then can be with higher efficient to carrying out the non-active gas displacement in the retention basin.
Description of drawings
Fig. 1 is expression the present invention
The general structure chart of one example of drying device.
Fig. 2 is the sequential chart of the driving of expression drying device shown in Figure 1.
Symbol description
1 drying device
2 drying sections
5 CPU
11 retention basins
12 air blasts
13 the 1st air feed routes
14 the 1st exhaust routes
15 backflow routes
16 heaters
21 nitrogen gas generating devices
24 the 2nd air feed routes
41 pumps
42 the 2nd exhaust routes
The specific embodiment
Fig. 1 is expression the present invention
The general structure chart of one example of drying device.
Drying section 2 possesses retention basin 11, drying drum blower fan the 12, the 1st air feed route the 13, the 1st exhaust route 14 as an example of air-flow generation means, backflow route 15 and as the heater 16 of an example of heater means.
Retention basin 11 forms the container that the upper portion that is roughly drum is communicated with the long-pending lower portion that is roughly cone shape that diminishes of opening section downwards.Retention basin 11 is stored powder.As the powder body for example plastic grain etc. is arranged.It for example is 5～20 liters that the capacity of retention basin 11 is not particularly limited.
Drying drum blower fan 12 utilizes CPU5 control, flows to the air-flow of retention basin 11.
The 1st air feed route 13 is pipe arrangements that the air-flow of self-desiccation air blast 12 in the future offers retention basin 11 usefulness, and its direction of the supply upstream-side-end is connected in drying drum blower fan 12, and its direction of the supply end of downstream side is connected in retention basin 11.
The 1st exhaust route 14 is the pipe arrangements that are used for from retention basin 11 exhausts, and its discharge directions upstream-side-end is connected in retention basin 11, in its discharge directions end of downstream side filter 14 is set.
Again, drying section 2 possesses cooling route 18 and cooling device 19.
Cooling route 18 bypass pipe route as the 1st air feed route 13 between drying drum blower fan 12 and heater 16 is provided with.That is to say that an end of cooling route 18 is connected in the direction of the supply upstream side of the 1st air feed route 13, the other end of cooling route 18 is relative with an end, is connected in the direction of the supply downstream of the 1st air feed route 13.On the coupling part of an end of cooling route 18 and the 1st air feed route 13 triple valve 20 is set again.
Again, drying section 2 (i.e. the 1st air feed route 13, retention basin the 11, the 1st exhaust route 14, backflow route 15, drying drum blower fan 12 and cooling route 18) forms closed course (circulation route).Also have, strictly speaking, drying section 2 has very little gap in the seam portion of pipe arrangement etc., and air or nitrogen (will narrate below) in the drying section 2 have the clearance leakage of minute quantity from drying section 2.
Non-active gas supply unit 3 possesses as the nitrogen generator unit 21 of an example of nonactive supply gas means, air compressor machine the 22, the 1st air supplies with route the 23, the 2nd air feed route 24.
22 pairs of air of air compressor machine compress, and the air that compressed is offered nitrogen generator unit 21, the pump 41 of relief portion 4, and the triple valve 20 of drying section 2.
It is to provide the pipe arrangement of using from the air of air compressor machine 22 to nitrogen generator unit 21 that the 1st air is supplied with route 23, and its direction of the supply upstream-side-end is connected in air compressor machine 22, and its direction of the supply end of downstream side is connected in nitrogen generator unit 21.Supply with being provided with of route 23 midway at the 1st air and supply with the pressure-regulating valve 25 that the pressure in the route 23 is adjusted the 1st again.
It is the pipe arrangements that the nitrogen that nitrogen generator unit 21 takes place offered drying section 2 usefulness that the 2nd air is supplied with route 24.Its direction of the supply upstream-side-end is connected in nitrogen generator unit 21, and the backflow route 15 that its direction of the supply end of downstream side is connected in drying section 2 midway.
Again, the 2nd air feed route 24 constitutes non-active gas with the backflow direction end of downstream side of the 1st air feed route 13 and backflow route 15 (than the part that is connected the 2nd air feed route 24 end in downstream more) and supplies with route.That is to say that non-active gas is supplied with route between nitrogen generator unit 21 and retention basin 11.
Again, the 2nd air feed route 24 possesses the 1st magnetic valve the 26, the 1st nitrogen supply route 27 and the 2nd nitrogen supply route 28.
The 1st magnetic valve 26 is arranged at the 2nd air feed route 24 midway.The 1st magnetic valve 26 can be switched to the 2nd nitrogen is supplied with route 28 sealings by CPU5 control, opens the 1st nitrogen and supplies with the amplification of route 27 (big flow) position and the 1st nitrogen is supplied with route 27 sealings, opens the low discharge position that the 2nd nitrogen is supplied with route 28.
It is bypass pipe routes of the 2nd air feed route 24 that the 1st nitrogen is supplied with route 27, its direction of the supply upstream-side-end is connected in the 1st magnetic valve 26, relative the 1st magnetic valve 26 of its direction of the supply end of downstream side is connected in the direction of the supply end of downstream side of the 2nd air feed route 24.Again, the 1st nitrogen supply route 27 possesses the 1st flow rate regulating valve 29.
The 1st flow rate regulating valve 29 is with the 1st nitrogen
The flow of supplying with the nitrogen that flows through in the route 27 is adjusted into bigger than the flow of the nitrogen that flows through in the 2nd nitrogen supply route 28.
The 2nd nitrogen is supplied with route 28
With respect to the 1st magnetic valve 26, the 2nd air feed route 24 in direction of the supply downstream possesses the 2nd flow rate regulating valve 30.
The flow that the flow that the 2nd flow rate regulating valve 30 is supplied with the nitrogen that flows through in the route 28 with the 2nd nitrogen is adjusted into the nitrogen that leaks than drying section 3 is bigger.Flow through the 2nd nitrogen and supply with the nitrogen concentration of the nitrogen in the route 28 than the 1st nitrogen again,
Supply with the nitrogen concentration height of the nitrogen that flows through in the route 27.
It is to be used for providing the pipe arrangement of using from the air of air compressor machine 22 to pump 41 that the 2nd air is supplied with route 43, and its direction of the supply upstream-side-end is connected in the 1st air and supplies with route 23 midway, and its direction of the supply end of downstream side is connected in pump 41.The 2nd air is supplied with route 43 will offer pump 41 by the air that the 1st air supply route 23 provides from air compressor machine 22.Again, the 2nd air supply route 43 possesses the 2nd magnetic valve 44.
The 2nd magnetic valve 44 is arranged at the 2nd air and supplies with route 43 midway.The 2nd magnetic valve 44 can and be cut off at the open position that will offer pump 41 from the air of air compressor machine 22 and be switched to closing between the position of pump 41 flow air from air compressor machine 22 by CPU5 control.
CPU5 and drying drum blower fan 12, heater 16, cooling device 19, nitrogen generator unit 21, pump the 41, the 1st magnetic valve the 26, the 2nd magnetic valve 44 and the 3rd magnetic valve 52 (will narrate below) are electrically connected, and they are controlled.
Again, drying device 1 possesses the 3rd air supply route 51.It is that triple valve 20 to drying section 2 provides the pipe arrangement of using from the air of air compressor machine 22 that the 3rd air is supplied with route 51, and its direction of the supply upstream-side-end is connected in the 2nd air and supplies with route 43 midway, and its direction of the supply end of downstream side is connected in triple valve 20.The 3rd air is supplied with route 51 will offer triple valve 20 by the air that the 1st air supply route 23 and the 2nd air supply route 43 provide from air compressor machine 22.Again, the 3rd air supply route 51 possesses the 3rd magnetic valve 52.
The 3rd magnetic valve 52 is arranged at the 3rd air and supplies with route 51 midway.The 3rd magnetic valve 52 is by CPU5 control, can and triple valve 20 be switched between the 2nd position of cool position in the 1st position that triple valve 20 is switched to heating location to switch.
Below with reference to Fig. 2 the driving of drying device is described.
Fig. 2 is the sequential chart of the driving of expression drying device shown in Figure 1.
In order to use drying device 1 dry powder, in retention basin 11, temporarily store powder in advance, simultaneously as shown in Figure 2, at first implement dry operation.In order to implement dry operation, at first make air compressor machine 22 work, simultaneously the 2nd magnetic valve 44 is switched to open position, make pump 41 work of relief portion 4, make the drying drum blower fan 12 of drying section 2 drive (the 1st state) simultaneously.
Also have, at this moment nitrogen generator unit 21, heater 16 and cooling device 19 all do not have to drive.And the 1st magnetic valve 26 be disposed at big flow position, the 3rd magnetic valve 52 is disposed at the 1st position.
So, make decompression in the drying section 2 by filter 17, take place to circulate by the 1st air feed route 13, retention basin the 11, the 1st exhaust route 14, filter 17 and backflow route 15 in regular turn at drying section 2 simultaneously, return the air-flow of drying drum blower fan 12 again from drying drum blower fan 12.
Then, under the state that pump 41 and drying drum blower fan 12 are being worked, make nitrogen generator unit 21 work (the 2nd state).That is to say, nitrogen generator unit 21 is driven.By means of this,, will offer retention basin 11 from the nitrogen of nitrogen generator unit 21 utilizing pump 41 to make retention basin 11 decompressions midway.
So, nitrogen takes place by nitrogen generator unit 21, supply with the backflow route 15 that route 27 offers nitrogen drying section 2 by the 1st nitrogen of the 2nd air feed route 24.Then, the nitrogen that is provided for backflow route 15 utilizes this drying drum blower fan 12 to offer retention basin 11 by the 1st air feed route 13.That is to say that nitrogen generator unit 21 in regular turn by the 2nd air feed route 24, backflow route 15 and the 1st air feed route 13, provides nitrogen to retention basin 11.Also have, nitrogen is full of in the drying section 2 by means of the air-flow that the drying drum blower fan takes place.
Then, drying drum blower fan 12, pump 41 and nitrogen generator unit 21 were worked for example 0～10 minute together, preferably made nitrogen concentration in the drying section 2 in 0～5 minute for for example more than 80%, preferably more than 90% after, the 2nd magnetic valve 44 is moved to close the position, make pump 41 stop (the 3rd state)., continue make drying drum blower fan 12 and nitrogen gas generator 21 work, make nitrogen concentration in the drying section 2 for for example more than 99.0% thereafter.By means of this, finish the nitrogen replacement in the drying section 2.
Then under the state that drying drum blower fan 12 and nitrogen generator unit 21 are being worked, the 1st magnetic valve 26 is switched to the low discharge position from big flow position, make heater 16 work (the 4th state) simultaneously.
Then, supply with route 28 from nitrogen generator unit 21 by the 2nd nitrogen and provide nitrogen, begin simultaneously slowly the nitrogen in the drying section 2 to be heated to drying section 2.Also have, supply with route 28 by the 2nd nitrogen and continue to provide nitrogen, the nitrogen concentration in the drying section 2 is remained on for example more than 99.0% with this to drying section 2.Again, the pressure in the drying section 2 is for example 1～10kPa, and preferably 2～7kPa roughly keeps normal pressure.
Then, utilize the nitrogen that heated, make the powder drying in the retention basin 11, finish the drying of powder.
Then, after the powder drying, implement cooling operation (the 5th state).In order to realize cooling operation, under the state that drying drum blower fan 12 and nitrogen generator unit 21 are being worked, heater 16 is stopped.Make cooling device 19 work again, the 3rd magnetic valve 52 is switched to the 2nd position, triple valve 20 is moved to cool position.
So the nitrogen in the drying section 2 passes through cooling route 19 from drying drum blower fan 12 through the 1st air feed route 13, after the cooling, provides to retention basin 11 by the 1st air feed route 13 in cooling route 19.
By means of this, utilize nitrogen with the cooling of the powder in the retention basin 11.
Also have, the nitrogen to powder cools off in regular turn by the 1st exhaust route 14, filter 17 and 15 circulations of backflow route, returns drying drum blower fan 12 thereafter once again.
If adopt this drying device 1 and such nitrogen replacement method, on one side then can make decompression in the retention basin 11, Yi Bian provide nitrogen to retention basin 11.That is to say, can actively the air in the retention basin 11 be discharged on one side, to retention basin 11 provide nitrogen on one side.
Therefore, and only provide the situation of nitrogen to compare to retention basin 11, can enough nitrogen expeditiously to replacing in the retention basin 11.
Consequently, can prevent in dry run medium silt generation deterioration.
If adopt this drying device 1 and such nitrogen replacement method, then provide nitrogen to retention basin 11 under the state that can in utilizing 11 pairs of retention basins 11 of pump, fully reduce pressure again.
Therefore, can be more expeditiously to carrying out nitrogen in the retention basin 11
Displacement.
Again, if adopt this drying device 1 and such nitrogen
Method of replacing then can at first utilize pump 41 to make retention basin 11 decompression, then before utilizing pump 11 to reduce pressure to finish, provides nitrogen to retention basin 11., begin to retention basin 11 provide nitrogen after, utilize time that pump 41 reduce pressure finish before can continue utilize pump 41 pair retention basins 11 reduce pressure, provide nitrogen to retention basin 11 simultaneously thereafter.
Therefore,
At first can utilize initial decompression that the more than half air in the retention basin 11 are discharged, the air in retention basin 11 thereafter reduces the moment of decompression inefficiency, on one side the air in the retention basin 11 are discharged, one side provides nitrogen in retention basin 11.
Consequently, can be with higher efficient to carrying out nitrogen in the retention basin 11
Displacement.
Again,, then can utilize pump 41 and nitrogen generator unit 21 if adopt this drying device 1 and such nitrogen replacement method, in making drying section 2 (closed course) decompression and it is carried out nitrogen replacement after, the nitrogen gas concn in the portion 2 that keeps dry.
Therefore, can keep nitrogen in the retention basin 11
Concentration.
If adopt this drying device 1 and such nitrogen replacement method, drying drum blower fan 12 is driven again.
Therefore, utilize pump 41 with the air in the drying section 2 when discharge the outside, the air in the drying section 2 can be carried to pump 41 from drying drum blower fan 12, can make decompression in the drying section 2 expeditiously.
Under the state that pump 41 is being worked, can make nitrogen generator unit 21 work again.
Therefore, can on one side the air in the drying section 2 be discharged to the outside, in drying section 2, provide nitrogen on one side, or the air drying section 2 in provides nitrogen after discharge the outside in drying section 2, can make expeditiously in the drying section 2 to be full of nitrogen.
Consequently, can be expeditiously to carrying out nitrogen replacement in the drying section 2, can be with high efficient to carrying out nitrogen replacement in the retention basin 11.
Variation
In above-mentioned example, drying drum blower fan 12 and pump 41 are driven, but also can before making 12 drivings of drying drum blower fan, pump 41 be driven.
Again, in above-mentioned example, after making pump 41 work, make nitrogen generator unit 21 work, but also can make pump 41 and nitrogen generator unit 21 work simultaneously, also can after making nitrogen generator unit 21 work, make pump 41 work.
Again, in above-mentioned example, utilizing pump 41 to make in the drying section 2 decompression midway, make nitrogen generator unit 21 work, nitrogen is offered in the drying section 2, but also can be when utilizing pump 41 to make retention basin 11 decompression provide nitrogen in for dry 2, can after the decompression end nitrogen be offered in the drying section 2 utilizing pump 41 to make drying section 2 in again.
Again, in above-mentioned example, pump 41 continues to stop after making nitrogen generator unit 21 work, but also can when for example drying device 1 is in the 3rd state, the 4th state or the 5th state pump 41 be driven, and makes decompression in the drying section 2 once again.
Again, in above-mentioned example, when providing nitrogen in the drying section 2, at first supply with route 27 (the 2nd state and the 3rd state) is provided, then supply with route 28 (the 4th state) is provided, but be not particularly limited from the 2nd nitrogen from the 1st nitrogen, according to purpose, for example at first also can supply with route 28 from the 2nd nitrogen provides, and then, supplying with route 27 from the 1st nitrogen provides.
Again, in above-mentioned example, pump 41 adopts jet pump, but pump 41 is not particularly limited, and for example also can use rotary pump etc.
Again, in above-mentioned example, non-active gas adopts nitrogen, the non-active gas generating means adopts nitrogen gas generating device, but non-active gas can adopt for example helium, argon grade in an imperial examination 18 family's elements, and the non-active gas generating means also can adopt nitrogen cylinder for example etc. to enclose the steel cylinder of above-mentioned non-active gas.
These variation all have the action effect the same with above-mentioned example.
Claims (7)
1. drying device, the air-flow generation means of the air-flow that possess the retention basin of storing powder, flows to described retention basin and the heater means that the air-flow that flows to described retention basin from described air-flow generation means is heated, under normal pressure, powder is carried out drying, it is characterized in that, possess
Make the decompression of described retention basin the decompression means,
To described retention basin provide non-active gas the non-active gas supply mean and
Described decompression means and described non-active gas supply mean are controlled, described retention basin is reduced pressure, will offer the control device of described retention basin from the non-active gas that described non-active gas supply mean comes to utilize described decompression means.
2. drying device according to claim 1, it is characterized in that, described control device is when utilizing described decompression means to reduce pressure or after the decompression, control described decompression means and described non-active gas supply mean, offer described retention basin with the non-active gas that described non-active gas supply mean is come.
3. drying device according to claim 1 and 2, it is characterized in that, described control device is utilizing described decompression means to make described retention basin decompression midway, control described decompression means and described non-active gas supply mean, offer described retention basin with the non-active gas that described non-active gas supply mean is come.
4. according to each the described drying device in the claim 1～3, it is characterized in that,
Possess
Decompression road route between described retention basin and described decompression means,
Non-active gas between described non-active gas supply mean and described retention basin supply with route and
Be connected in described non-active gas supply with backflow route on route and the described decompression route,
Described non-active gas is supplied with route, described retention basin, described decompression route and described backflow route and is formed closed course.
5. drying device according to claim 4 is characterized in that,
Described air-flow generation means are arranged in the described closed course,
Described control device
When described air-flow generation means drive, or before the driving of described air-flow generation means described decompression means are driven,
Control described non-active gas supply mean, it is driven when described decompression means drive or after the driving of described decompression means.
6. the method for replacing of the non-active gas of a drying device, the air-flow generation means of the air-flow that possess the retention basin of storing powder, flows to described retention basin and the heater means that the air-flow that flows to described retention basin from described air-flow generation means is heated, roughly under the normal pressure powder is being carried out in the dry drying device, it is characterized in that
Described drying device possesses,
Make the decompression means of described retention basin decompression and provide the non-active gas supply mean of non-active gas described retention basin,
Utilize described decompression means to make described retention basin decompression, provide described non-active gas supply mean next non-active gas described retention basin.
7. the method for replacing of the non-active gas of drying device according to claim 6, it is characterized in that, when utilizing described decompression means to reduce pressure or after the decompression, the non-active gas that described non-active gas supply mean is come offers described retention basin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-022499 | 2010-02-03 | ||
| JP2010022499A JP5298041B2 (en) | 2010-02-03 | 2010-02-03 | Drying apparatus and inert gas replacement method |
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| CN102141338A true CN102141338A (en) | 2011-08-03 |
| CN102141338B CN102141338B (en) | 2016-09-07 |
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| CN201110038738.3A Active CN102141338B (en) | 2010-02-03 | 2011-01-31 | Drying device and the method for replacing of non-active gas |
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| JP (1) | JP5298041B2 (en) |
| CN (1) | CN102141338B (en) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339471A (en) * | 2013-08-02 | 2015-02-11 | 株式会社川田 | Powder body processing unit |
| CN106546067A (en) * | 2015-09-18 | 2017-03-29 | 海南椰国食品有限公司 | Bacterial cellulose gel film replaces low temperature integrated dry drying system |
| CN109813067A (en) * | 2019-01-14 | 2019-05-28 | 上海釜川自动化设备有限公司 | A kind of drying system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186188B (en) * | 2018-10-22 | 2023-12-22 | 杭州新世纪混合气体有限公司 | Gas cylinder heating drying box and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140049B1 (en) * | 1994-07-02 | 1998-07-15 | 이치홍 | A drying apparatus for agricultural and marine products using hot air |
| JPH11294957A (en) * | 1998-04-07 | 1999-10-29 | Takaoka Electric Mfg Co Ltd | Drying device of electric machinery and apparatus |
| JPH11344831A (en) * | 1998-06-01 | 1999-12-14 | Canon Inc | Production of toner |
| CN1834791A (en) * | 2005-03-14 | 2006-09-20 | 大日本网目版制造株式会社 | Decompression dry device |
| CN1871486A (en) * | 2003-10-22 | 2006-11-29 | 艾森曼机械制造有限及两合公司 | System and method for drying objects |
| US20070022626A1 (en) * | 2005-08-01 | 2007-02-01 | Seiko Epson Corporation | Reduced-pressure drying apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213562A (en) * | 1993-01-14 | 1994-08-02 | World Kiko:Kk | Vacuum drier |
| JP2002334829A (en) * | 2001-05-10 | 2002-11-22 | Yoshiharu Yamamoto | Cleaning/drying apparatus |
-
2010
- 2010-02-03 JP JP2010022499A patent/JP5298041B2/en active Active
-
2011
- 2011-01-31 TW TW100103547A patent/TWI535988B/en active
- 2011-01-31 CN CN201110038738.3A patent/CN102141338B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140049B1 (en) * | 1994-07-02 | 1998-07-15 | 이치홍 | A drying apparatus for agricultural and marine products using hot air |
| JPH11294957A (en) * | 1998-04-07 | 1999-10-29 | Takaoka Electric Mfg Co Ltd | Drying device of electric machinery and apparatus |
| JPH11344831A (en) * | 1998-06-01 | 1999-12-14 | Canon Inc | Production of toner |
| CN1871486A (en) * | 2003-10-22 | 2006-11-29 | 艾森曼机械制造有限及两合公司 | System and method for drying objects |
| CN1834791A (en) * | 2005-03-14 | 2006-09-20 | 大日本网目版制造株式会社 | Decompression dry device |
| US20070022626A1 (en) * | 2005-08-01 | 2007-02-01 | Seiko Epson Corporation | Reduced-pressure drying apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339471A (en) * | 2013-08-02 | 2015-02-11 | 株式会社川田 | Powder body processing unit |
| CN106546067A (en) * | 2015-09-18 | 2017-03-29 | 海南椰国食品有限公司 | Bacterial cellulose gel film replaces low temperature integrated dry drying system |
| CN109813067A (en) * | 2019-01-14 | 2019-05-28 | 上海釜川自动化设备有限公司 | A kind of drying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102141338B (en) | 2016-09-07 |
| JP5298041B2 (en) | 2013-09-25 |
| JP2011158232A (en) | 2011-08-18 |
| TW201139960A (en) | 2011-11-16 |
| TWI535988B (en) | 2016-06-01 |
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