CN204404694U - Boiling-bed drying - Google Patents
Boiling-bed drying Download PDFInfo
- Publication number
- CN204404694U CN204404694U CN201420833146.XU CN201420833146U CN204404694U CN 204404694 U CN204404694 U CN 204404694U CN 201420833146 U CN201420833146 U CN 201420833146U CN 204404694 U CN204404694 U CN 204404694U
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- Prior art keywords
- blower fan
- control circuit
- relay
- heater
- coil
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Abstract
Boiling-bed drying comprises blower fan heater, blower fan heater comprises blower fan, primary heater and control circuit, control circuit comprises control end, input and output, the control end of control circuit is connected with blower fan, the input of control circuit is connected with controller power source, and the output of control circuit is connected with primary heater; When blower fan normally works, the control end conducting of control circuit, primary heater accesses described controller power source and works; When blower fan is out of service, the control end of control circuit disconnects, and primary heater and controller power source disconnect and quit work.Blower fan of the present utility model and heater are undertaken jointly controlling formula by control circuit, namely when blower fan because of fault trip or other reasons out of service time, control circuit control heater stop, preventing from causing the accidents such as fire because heating-up temperature is too high.
Description
Technical field
The utility model relates to a kind of boiling-bed drying.
Background technology
Boiling-bed drying, also known as fluid bed.Self-application, over more than 40 year, has had continuous extension and improvement, and in the extensive use of the industries such as pharmacy, chemical industry, food, grain processing, such as, the dehumidifying of the powderies such as bulk drug, particle patent medicine, electuary, feed, plastic resin and granular material is with dry.
Existing drying machine generally comprises for the drier host machine of dry wet material, heater and blower fan.Described drier host machine is provided with air inlet and air outlet, and after the hot blast of described heater enters drier host machine, the wet stock in drier host machine is formed fluidized state by hot blast.Because hot blast extensively contacts with material, therefore drying can be completed at short notice.
In existing drying machine when blower fan break down tripping operation or other reasons out of service time, can not heater circuit be stopped in time and cause heter temperature too high, cause the original equipment of the accidents such as fire.
Utility model content
Based on this, be necessary to provide a kind of when blower fan occurs shutting down because of fault, heating system is cut off automatically, ensures the boiling-bed drying of device security.
Boiling-bed drying comprises blower fan heater, the control circuit that described blower fan heater comprises blower fan, primary heater and is connected between described blower fan and described primary heater, described control circuit comprises control end, input and output, the control end of described control circuit is connected the signal for receiving described blower fan with described blower fan, the input of described control circuit is connected with controller power source, and the output of described control circuit is connected with described primary heater; When described blower fan normally works, the control end conducting of described control circuit, described primary heater accesses described controller power source and works; When described blower fan is out of service, the control end of described control circuit disconnects, and described primary heater and described controller power source disconnect and quit work.
Wherein in an embodiment, described control circuit comprises gauge tap and is arranged at the first relay between described blower fan and described primary heater, and described first relay comprises the first coil and the first relay normally open contact; When described blower fan is for normally working, described gauge tap closes, the control loop conducting of described first relay, and described first coil obtains electric adhesive, and described first relay normally open contact closes, and described primary heater starts and starts working.
Wherein in an embodiment, described blower fan heater also comprises secondary heater, and described control circuit comprises the second relay for controlling described secondary heater; Described second relay comprises the second coil and the second relay normally open contact, and described first relay also comprises the first relay normally-closed contact, and described second coil is connected with described first relay normally-closed contact and is parallel to described first coil two ends simultaneously; Described second relay normally open contact is connected with described secondary heater.
Wherein in an embodiment, the power of described secondary heater is less than the power of described primary heater.
Wherein in an embodiment, described control circuit comprises comparator and the 3rd relay, described comparator comprises input, incorgruous input and output in the same way in the same way, described input is in the same way for inputting the signal of described blower fan, described incorgruous input is for inputting given comparison signal, described output is in the same way used for when described blower fan normally works, and exports the signal of described blower fan to described 3rd relay.
Wherein in an embodiment, described control circuit also comprises the resistance be connected between described blower fan and described comparator, one end of described resistance is connected with the signal end of described blower fan as the control end of described control circuit, and the other end of described resistance is connected with the input in the same way of described comparator.
Wherein in an embodiment, described control circuit also comprises the 4th relay, and described 4th relay comprises the 4th coil and the 4th relay normally open contact, and described 3rd relay comprises tertiary coil and the 3rd relay normally open contact; The output in the same way of described comparator is connected with described tertiary coil, and described 4th coil is connected with described 3rd relay normally open contact, and described primary heater is connected with described 4th relay normally open contact.
Blower fan of the present utility model and primary heater are undertaken jointly controlling formula by control circuit, namely when blower fan because of fault trip or other reasons out of service time, control circuit control primary heater stop, preventing from causing the accidents such as fire because heating-up temperature is too high.
Accompanying drawing explanation
Fig. 1 is the structural representation of boiling-bed drying in the utility model;
Fig. 2 is the circuit theory diagrams of blower fan heater in boiling-bed drying in the utility model first embodiment;
Fig. 3 is the circuit theory diagrams of blower fan heater in boiling-bed drying in the utility model second embodiment.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, in the utility model, boiling-bed drying comprises drier host machine 10 and blower fan heater (not shown).Wherein, drier host machine 10 comprises upper box 11, drying box 12 and underframe 13 from top to bottom successively.Upper box 11 is provided with air outlet 110 away from one end of underframe 13.Underframe 13 is provided with air inlet 112 away from one end of upper box 11.Drying box 12 offers charging aperture 121 and discharging opening 123.Be interconnected between air outlet 110, drying box 12 and air inlet 112.Charging aperture 121 is connected with feeding device, carries out drying for being sent in drying box 12 by the material inputted through feeding device.
Outside air after filtering, is sucked by air inlet 112 and heats under the effect of blower fan heater, and the hot-air after heating is by blower fan heater suction drying box 12.Need dry wet stock put into boiling case by feeding device through charging aperture 121 and blown afloat into fluidized state under effect at wind pressure, thus contact fully with hot-air, conduct heat, in the short period of time, the moisture of material is evaporated.The steam evaporated is less easily entrained by is discharged by air outlet 110.
Please refer to Fig. 2, in the utility model first embodiment, the control circuit that blower fan heater comprises blower fan 31, three primary heaters 33 and is connected between blower fan 31 and three primary heaters 33.Wherein, blower fan 31 and three primary heaters 33 carry out association type control by control circuit, namely when blower fan 31 because of fault trip or other reasons out of service time, control circuit controls three primary heaters 33 all to be stopped, and prevents from causing the accidents such as fire because heating-up temperature is too high.
Control circuit comprises control end, input and output.Wherein, the control end of control circuit is connected with blower fan 31, for receiving the blower fan loop control signal that blower fan 31 exports.The input of control circuit is connected with controller power source, and the output of control circuit is connected with three primary heaters 33.When blower fan 31 normally works, the control end of control circuit is the also conducting frequently of high electricity, and three primary heater 33 access controller power supplys also work; When blower fan 31 because of fault trip or other reasons out of service time, the control end of control circuit be low electricity frequently and disconnect, three primary heaters 33 disconnect with controller power source and quit work.Wherein, A, B, C represent the positive pole of three primary heater 33 power supplys respectively; N represents the negative pole of three primary heater 33 power supplys.
Particularly, control circuit comprises gauge tap 355 and is arranged at the first relay between blower fan 31 and primary heater 33.First relay comprises the first coil 3510 and three the first relay normally open contacts 3511.First coil 3510 is connected with gauge tap 355, switches between adhesive and disconnection two states for the signal according to blower fan 31.Three the first relay normally open contacts 3511 are connected with three primary heaters 33 respectively, for according to the adhesive of the first coil 3510 and the start and stop disconnecting two states and control three primary heaters 33.
Blower fan heater also comprises secondary heater 34.Control circuit comprises the second relay for controlling secondary heater 34.Second relay comprises the second coil 3610 and the second relay normally open contact 3611.First relay also comprises the first relay normally-closed contact 3512.Wherein, the second coil 3610 is connected with the first relay normally-closed contact 3512 and is parallel to the first coil 3150 two ends simultaneously, switches between adhesive and disconnection two states for the signal according to blower fan 31.Second relay normally open contact 3611 is connected with secondary heater 34.First relay normally-closed contact 3512, for closed when blower fan 31 runs because abending, makes the second relay normally open contact 3611 closed to drive secondary heater 34 to work.
Wherein, the power of secondary heater 34 is less than the power of three primary heaters 33.Therefore, when blower fan 31 quits work and three primary heaters 33 cannot work, secondary heater 34 carries out low-power heating, to dry being about to the dry material completed.Wherein, D represents the positive pole of secondary heater 34 power supply, and N also represents the negative pole of secondary heater 34 power supply.
When blower fan 31 is for normally working, gauge tap 355 is closed under the control of blower fan loop control signal, the control loop conducting of the first relay, first coil 3510 obtains electric adhesive, three the first relay normally open contacts 3511 are closed, the drive circuit conducting of three primary heaters 33 of three the first relay normally open contact 3511 correspondences, thus three primary heaters 33 start and start working; First relay normally-closed contact 3512 disconnects simultaneously, the second coil 3610 power-off, and secondary heater 34 is out of service; When blower fan 31 runs because abending, gauge tap 355 can not close under the control of blower fan loop control signal, the control loop of the first relay can not conducting, first coil 3510 can not obtain electric adhesive, three the first relay normally open contacts 3511 disconnect, thus the drive circuit of three primary heaters 33 corresponding with three the first relay normally open contacts 3511 disconnects, three heaters 33 quit work; First relay normally-closed contact 3512 closes simultaneously, and the second coil 3610 obtains electric adhesive, and secondary heater 34 brings into operation.
Please refer to Fig. 3, in the utility model second embodiment, control circuit comprises comparator 354 and is arranged at the 3rd relay between blower fan 31 and three primary heaters 33.Comparator 354 comprises input 3540, incorgruous input 3542 and output 3543 in the same way in the same way.Input 3540 is for inputting the signal of blower fan 31 in the same way.Incorgruous input 3542 is for inputting given comparison signal.Output 3543 is for when blower fan 31 normally works in the same way, exports blower fan 31 signal to the 3rd relay.
In order to dividing potential drop is to protect comparator 354, control circuit also comprises the resistance 350 be connected between blower fan 31 and comparator 354.One end of resistance 350 is connected with blower fan 31 signal end as the control end of control circuit, and the other end of resistance 350 is connected with the input in the same way 3540 of comparator 354.
In the present embodiment, the voltage exported due to comparator 354 is less, so the 3rd relay coil only needs the just energy adhesive of very little voltage, very little voltage and current also can only be born in its contact, and the voltage and current of three primary heaters 33 is all very large, therefore control circuit also comprises the 4th relay be connected between the 3rd relay and three primary heaters 33.Wherein, the voltage of the 4th relay is higher than the voltage of the 3rd relay.
3rd relay comprises tertiary coil 3520 and the 3rd relay normally open contact 3521.4th relay comprises the 4th coil 3530 and the 4th relay normally open contact 3531.The output in the same way 3543 of comparator 354 is connected with tertiary coil 3520, and the 4th coil 3530 is connected with the 3rd relay normally open contact 3521, and primary heater 33 is connected with the 4th relay normally open contact 3531.
During work, the state of systems axiol-ogy blower fan 31 also provides a signal, and the signal that blower fan 31 exports diminishes through resistance 350, and compares with the Setting signal of incorgruous input 3542, to be judged as whether blower fan 31 is normal.
When the Setting signal of the signal diminished through resistance 350 and incorgruous input 3542 is close, then be judged as that blower fan 31 is for normal work, comparator 354 sends the control loop conducting that signal makes the 3rd relay, tertiary coil 3520 obtains electric adhesive, 3rd relay normally open contact 3521 closes, thus the control loop conducting of the 4th relay, 4th coil 3530 obtains electric adhesive, 4th relay normally open contact 3531 closes, thus the drive circuit conducting of three primary heaters 33, three primary heaters 33 start and start working.
When the signal diminished through resistance 350 different from the Setting signal of incorgruous input 3542 (namely differing larger), then be judged as blower fan 31 fault or abnormal work, comparator 354 does not send signal, the control loop of the 3rd relay can not conducting, tertiary coil 3520 can not obtain electric adhesive, the normally opened contact of the 3rd relay normally open contact 3521 disconnects, thus the control loop of the 4th relay can not conducting, 4th coil 3530 can not obtain electric adhesive, the normally opened contact of the 4th relay normally open contact 3531 disconnects, thus the drive circuit of three primary heaters 33 can not conducting, three primary heaters 33 do not start or do not work.
In the utility model, blower fan and heater carry out association type control by control circuit, namely when blower fan because of fault trip or other reasons out of service time, control circuit control heater stop, preventing from causing the accidents such as fire because heating-up temperature is too high.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. boiling-bed drying, it is characterized in that: comprise blower fan heater, the control circuit that described blower fan heater comprises blower fan, primary heater and is connected between described blower fan and described primary heater, described control circuit comprises control end, input and output, the control end of described control circuit is connected the signal for receiving described blower fan with described blower fan, the input of described control circuit is connected with controller power source, and the output of described control circuit is connected with described primary heater; When described blower fan normally works, the control end conducting of described control circuit, described primary heater accesses described controller power source and works; When described blower fan is out of service, the control end of described control circuit disconnects, and described primary heater and described controller power source disconnect and quit work.
2. boiling-bed drying as claimed in claim 1, it is characterized in that: described control circuit comprises gauge tap and is arranged at the first relay between described blower fan and described primary heater, and described first relay comprises the first coil and the first relay normally open contact; When described blower fan is for normally working, described gauge tap closes, the control loop conducting of described first relay, and described first coil obtains electric adhesive, and described first relay normally open contact closes, and described primary heater starts and starts working.
3. boiling-bed drying as claimed in claim 2, it is characterized in that: described blower fan heater also comprises secondary heater, described control circuit comprises the second relay for controlling described secondary heater; Described second relay comprises the second coil and the second relay normally open contact, and described first relay also comprises the first relay normally-closed contact, and described second coil is connected with described first relay normally-closed contact and is parallel to described first coil two ends simultaneously; Described second relay normally open contact is connected with described secondary heater.
4. boiling-bed drying as claimed in claim 3, is characterized in that: the power of described secondary heater is less than the power of described primary heater.
5. boiling-bed drying as claimed in claim 1, it is characterized in that: described control circuit comprises comparator and the 3rd relay, described comparator comprises input, incorgruous input and output in the same way in the same way, described input is in the same way for inputting the signal of described blower fan, described incorgruous input is for inputting given comparison signal, described output is in the same way used for when described blower fan normally works, and exports the signal of described blower fan to described 3rd relay.
6. boiling-bed drying as claimed in claim 5, it is characterized in that: described control circuit also comprises the resistance be connected between described blower fan and described comparator, one end of described resistance is connected with the signal end of described blower fan as the control end of described control circuit, and the other end of described resistance is connected with the input in the same way of described comparator.
7. boiling-bed drying as claimed in claim 6, it is characterized in that: described control circuit also comprises the 4th relay, described 4th relay comprises the 4th coil and the 4th relay normally open contact, and described 3rd relay comprises tertiary coil and the 3rd relay normally open contact; The output in the same way of described comparator is connected with described tertiary coil, and described 4th coil is connected with described 3rd relay normally open contact, and described primary heater is connected with described 4th relay normally open contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833146.XU CN204404694U (en) | 2014-12-24 | 2014-12-24 | Boiling-bed drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833146.XU CN204404694U (en) | 2014-12-24 | 2014-12-24 | Boiling-bed drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404694U true CN204404694U (en) | 2015-06-17 |
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ID=53428545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833146.XU Withdrawn - After Issue CN204404694U (en) | 2014-12-24 | 2014-12-24 | Boiling-bed drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204404694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534816A (en) * | 2014-12-24 | 2015-04-22 | 湖南中和制药有限公司 | Fluidized drying bed |
| CN109084531A (en) * | 2018-09-05 | 2018-12-25 | 东营科创生物化工有限公司 | A kind of drying bed |
-
2014
- 2014-12-24 CN CN201420833146.XU patent/CN204404694U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534816A (en) * | 2014-12-24 | 2015-04-22 | 湖南中和制药有限公司 | Fluidized drying bed |
| CN104534816B (en) * | 2014-12-24 | 2016-05-18 | 湖南中和制药有限公司 | Boiling-bed drying |
| CN109084531A (en) * | 2018-09-05 | 2018-12-25 | 东营科创生物化工有限公司 | A kind of drying bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150617 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |