CN206989621U - Vacuum impregnation rotary dryer - Google Patents
Vacuum impregnation rotary dryer Download PDFInfo
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- CN206989621U CN206989621U CN201720834602.6U CN201720834602U CN206989621U CN 206989621 U CN206989621 U CN 206989621U CN 201720834602 U CN201720834602 U CN 201720834602U CN 206989621 U CN206989621 U CN 206989621U
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- rotary tank
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Abstract
It the utility model is related to rotary dryer field, disclose a kind of vacuum impregnation rotary dryer, wherein, the vacuum impregnation rotary dryer includes being used for the rotary tank (2) for housing material (13), the electric heating tube (3) being wrapped in along the ring circumferential direction of the outer peripheral face of the rotary tank (2) on the rotary tank (2), and the temperature-measuring part (4) of the temperature for measuring the rotary tank (2), wherein, the temperature-measuring part (4) and the electric heating tube (3) are connected with control device (15), the control device (15) can according to the temperature-measuring part (4) measure temperature control described in electric heating tube (3) power output.Technical scheme provided by the utility model can reduce the space-consuming and heating cost of vacuum impregnation rotary dryer, reduce environmental pollution and the risk of temperature runaway occurs in the course of the work for vacuum impregnation rotary dryer.
Description
Technical field
Vacuum impregnation rotary dryer field is the utility model is related to, more particularly to a kind of vacuum impregnation rotary drying
Machine.
Background technology
Vacuum impregnation rotary dryer is a kind of suitable for industries such as medicine, chemical industry, food, powder metallurgy, chemical fibre, dyestuffs
Drying equipment, especially suitable temperature-sensitive, oxygenation or have particular/special requirement granular material dry.
Vacuum impregnation rotary dryer is generally diconical rotary tank (also known as kettle), and rotary tank is in vacuum state
Lower heating, heat are contacted by inner tank wall with the wet stock in tank body, and the steam evaporated after wet stock heat absorption passes through vavuum pump
Evacuated pipe is discharged to outside tank body.
The mode of heating of existing vacuum impregnation rotary dryer mainly has two kinds, and a kind of wrapped in the outside of rotary tank
Chuck is covered, is heated by being passed through steam, hot water or conduction oil into chuck, this mode of heating has heating system investment
Greatly, space-consuming is big, the thermal efficiency using low, high energy consumption, pollution is easily caused to environment the defects of.Another kind is electrical heating, will
Heating plate is directly installed on tank wall, it is not necessary to coats chuck, but the circuit design of heating plate is unreasonable, later stage temperature runaway be present
Problem.
Utility model content
The purpose of this utility model is to overcome drawbacks described above present in prior art, there is provided a kind of technical scheme,
The technical scheme can reduce the space-consuming and heating cost of vacuum impregnation rotary dryer, reduce environmental pollution and vacuum
The risk of temperature runaway occurs in the course of the work for dipping rotary dryer.
To achieve these goals, the utility model provides a kind of vacuum impregnation rotary dryer, wherein, the Vaccum Permeating
Stain rotary dryer is including being used to house the rotary tank of material, being wound along the ring circumferential direction of the outer peripheral face of the rotary tank
The temperature-measuring part of electric heating tube on the rotary tank and the temperature for measuring the rotary tank, wherein, it is described
Temperature-measuring part and the electric heating tube are connected with control device, what the control device can measure according to the temperature-measuring part
The power output of electric heating tube described in temperature control.
Preferably, heat-conducting daub is filled between the electric heating tube and the rotary tank, the temperature-measuring part is buried
Between the rotary tank and the heat-conducting daub.
Preferably, the electric heating tube is wrapped on the rotary tank by bar shaped support.
Preferably, the bar shaped support includes being fixed on the rotary tank along the length direction of the rotary tank
Ladder shape support bar on outer wall and it is evenly distributed on the ladder shape branch along the length direction of the ladder shape support bar
Electric heating tube hold assembly on stay.
Preferably, the vacuum impregnation rotary dryer also includes being used for the vacuum means for vacuumizing the rotary tank
Put and sprayed for the material into the rotary tank spray equipment of hydraulic fluid.
Preferably, the vacuum extractor includes inner and outer end respectively positioned at the inside and outside of the rotary tank
Vacuum-pumping tube and installed in the inner to be filtered before gas enters the vacuum-pumping tube to it of the vacuum-pumping tube
Vacuum filter.
Preferably, the spray equipment include being coaxially mounted to feed tube in the vacuum-pumping tube and with it is described enter
The sparge pipe of hydraulic fluid is sprayed in liquid pipe connection with the material into the rotary tank；The feed tube and the vacuum-pumping tube
Between formed with radial clearance with enable gas in the rotary tank by the radial clearance be expelled to it is described take out it is true
Outside blank pipe.
Preferably, the vacuum impregnation rotary dryer also includes frame, and the rotary tank is by being fixed on described return
The rotating shaft for turning tank body both sides is arranged in the frame, and the rotating shaft of the rotary tank wherein side is to connect with the rotary tank
Logical hollow rotating shaft, the vacuum-pumping tube are coaxially mounted in the hollow rotating shaft and pass through dynamic seal between the hollow rotating shaft
Dynamic sealing.
Preferably, the outer end of the rotating shaft of the rotary tank opposite side is provided with sliding electric ring, the temperature-measuring part and described
Electric heating tube is connected by the electric ring of cunning with the control device；And/or the control device is arranged on the frame
On.
Preferably, the temperature-measuring part is RTD；And/or can be with work in the vacuum impregnation rotary dryer
The part that liquid is in contact is titanium alloy member；It is described and/or the vacuum impregnation rotary dryer also includes external thermal insulation
Electric heating tube is between the external thermal insulation and the rotary tank.
Technical scheme provided by the utility model has the advantages that：
Vacuum impregnation rotary dryer provided by the utility model is by being wrapped in the periphery of rotary tank along ring circumferential direction
Electric heating tube on face heats tank body, compared to existing chuck, smaller, the required throwing of spatial volume that electric heating tube takes
It is lower to provide cost, and reduces environmental pollution；
In addition, measuring the temperature of rotary tank by temperature-measuring part, measured by control device according to temperature-measuring part
The temperature of rotary tank controls the heating power of electric heating tube can more accurately to control the heating-up temperature of rotary tank, has
Effect reduces the risk that temperature runaway occurs in the course of the work for vacuum impregnation rotary dryer.
Brief description of the drawings
Fig. 1 is the overall structure diagram for the vacuum impregnation rotary dryer that the utility model embodiment provides.
Description of reference numerals
1- frames；2- rotary tanks；3- electric heating tubes；4- temperature-measuring parts；5- heat-conducting daubs；6- slides electric ring；7- feed tubes；
8- sparge pipes；9- vacuum filters；10- vacuum-pumping tubes；11- packing seal elements；12- mechanical sealing parts；13- materials；14- electricity
Machine control cabinet；15- control devices.
Embodiment
In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower, left and right " used is usual
Refer to the upper and lower, left and right of refer to the attached drawing." inside and outside " refers to relative to the inside and outside of part profile itself.
Referring to Fig. 1, the utility model embodiment provides a kind of vacuum impregnation rotary dryer, wherein, the Vaccum Permeating
Stain rotary dryer includes rotary tank 2, electric heating tube 3 and temperature-measuring part 4；The rotary tank 2 is generally double-cone tube body,
That is, the upper and lower ends portion of described rotary tank 2 is that taper is for example conical, and the center section of the rotary tank 2 is tubular example
Such as cylinder.Wherein, so that the upper and lower end parts of rotary tank 2 is cones as an example, the angle between conical bus and horizontal plane
Such as can be 25 ° or so, port can for example be sealed by circular bumped head.Material 13 is housed in rotary tank 2.Dry
During dry material 13, the heat transfer of inner tank wall to material 13, meanwhile, material 13 under the rotation of rotary tank 2 on
Stirred inside and outside lower.In order to which preferably environmental protection, the cost of investment of reduction vacuum impregnation rotary dryer, reduction vacuum impregnation are returned
Turn the space-consuming of drying machine, improve the safety in utilization and reliability of vacuum impregnation rotary dryer, the present embodiment passes through such as
Under type provides the heat dried needed for the material 13.Specifically, along the rotary tank 2 on the rotary tank 2
Electric heating tube 3 is wound with the ring circumferential direction of outer peripheral face, in addition, the vacuum impregnation rotary dryer also includes being used to measure institute
The temperature-measuring part 4 of the temperature of rotary tank 2 is stated, the temperature-measuring part 4 and the electric heating tube 3 are connected with control device 15,
The control device 15 can according to the temperature-measuring part 4 measure temperature control described in electric heating tube 3 power output.
Tank body is heated by the electric heating tube 3 being wrapped in along ring circumferential direction on the outer peripheral face of rotary tank 2, compared to existing
Some chucks, the spatial volume that electric heating tube 3 takes is smaller, and required cost of investment is lower, and reduces environmental pollution；
In addition, measuring the temperature of rotary tank 2 by temperature-measuring part 4, surveyed by control device 15 according to temperature-measuring part 4
The temperature of the rotary tank 2 of amount controls the heating power of electric heating tube 3 can more accurately to control the heating of rotary tank 2
Temperature, the risk that temperature runaway occurs in the course of the work for vacuum impregnation rotary dryer is effectively reduced, improve vacuum impregnation and return
Turn the safety in utilization and reliability of drying machine.
In a preferred embodiment, heat-conducting daub 5 is filled between the electric heating tube 3 and the rotary tank 2.Pass through
Heat-conducting daub 5 is filled in gap between electric heating tube 3 and rotary tank 2, heat transfer area can be increased, is established efficiently low
The heat transfer path of thermal resistance, reach and improve heat transfer efficiency, reduce energy consumption, prevent material 13 from being blocked up because of heat tracing temperature deficiency solidification and crystallization
Fill in process pipe.It is effectively slow and heat-conducting daub 5 can effectively improve the heat transfer uniformity of electric heating tube 3 and rotary tank 2
Solve material 13 because caused by hot-spot material 13 be denatured the problem of.The thermal conductivity ratio air conduction rate of heat-conducting daub 5 is big by hundreds of
Times, by filling heat-conducting daub 5 between electric heating tube 3 and rotary tank 2, them is formed a continous way heat transfer and combine
Body, such direct heat transfer substantially increase the efficiency of heating surface equivalent to heating jacket, not only energy-conservation and also heating and cooling it is fast again with
On, shorten the production cycle, homogeneous heating, prevent the electrochemical corrosion between hot-spot and pipe.
Further, the outermost layer of the rotary tank 2 can coat external thermal insulation, and external thermal insulation is located at electric heating tube 3
Outside, for reducing thermal loss of the electric heating tube 3 in heating process, the efficiency of heating surface is further improved, saves the energy, is shortened
Production cycle.
The temperature-measuring part 4 can be for example embedded between the rotary tank 2 and the heat-conducting daub 5, direct measurement
The outside wall temperature of the rotary tank 2.Conventional temperature-measuring part 4 has thermocouple wire, copper resistance or RTD etc., due to thermocouple wire
Size is not easy to install, and the temperature-measuring range of copper resistance is narrower, generally 0-100 DEG C, requires high to drying temperature for some
Such as aluminum oxide of material 13 do not apply to.Therefore, in the present embodiment, the 4 preferred RTD of temperature-measuring part.
The electric heating tube 3 can be wrapped on the outer wall of the rotary tank 2 in several ways, such as be welded, or
Person is fixed on the rotary tank 2 by buckle, support etc..In order to which electric heating tube 3 is closely adhered into kettle outer surface,
To be avoided as much as thermal losses, and it is easy to the dismounting of the electric heating tube 3, it is preferable that the electric heating tube 3 passes through bar shaped branch
Frame is wrapped on the rotary tank 2.
Specifically, the bar shaped support includes being fixed on the rotary tank 2 along the length direction of the rotary tank 2
Outer wall on ladder shape support bar and be evenly distributed on the ladder shape along the length direction of the ladder shape support bar
The hold assembly of electric heating tube 3 on support bar.
It should be noted that first, so that the rotary tank 2 is double-cone tube body as an example, the length side of the rotary tank 2
To the direction substantially parallel with the axis direction of the rotary tank 2 is referred to, in this direction, the ladder shape support bar
Both ends can for example terminate in the both ends of the rotary tank 2 respectively, on the middle cylinder part of double-cone tube body, the support of ladder shape
The ring circumferential direction of the length direction of bar and the outer peripheral face of cylinder is substantially vertical.
Second, the ladder shape support bar has a variety of fixed forms, typically, the ladder with the rotary tank 2
Shape support bar can be fixed on by way of spot welding on the outer wall of the rotary tank 2.
3rd, the ladder shape support bar refers to the profile support bar similar with ladder, specifically, the ladder shape branch
Stay include two the first support bars for being parallel to each other and being spaced apart from each other and be arranged between two first support bars and with
Some connected vertically second support bars parallel to each other and spaced apart of first support bar.
4th, the hold assembly of electric heating tube 3 refers to fixing the portion of the electric heating tube 3 by way of clamping
Part, the clamping refer to fixing electric heating tube 3 by this way：When electric heating tube 3 when not in use, operating personnel can not borrow
Help other instruments and directly described in manual removal electric heating tube 3 a kind of fixed form.
5th, so that the ladder shape support bar has above-mentioned first support bar and the second support bar as an example, the ladder shape
The length direction of support bar is identical with the length direction of the first support bar, and in order to uniformly heat the rotary tank 2, the electricity adds
Heat pipe 3 is preferably wrapped on the rotary tank 2 at equal intervals, i.e. the spacing phase between two adjacent circle electric heating tubes 3
Deng.In order to realize the purpose, length direction of the hold assembly of electric heating tube 3 along the ladder shape support bar is uniformly distributed
On the ladder shape support bar.
Preferably, the hold assembly of electric heating tube 3 for example can be clamp groove of the opening towards outside, such as circular arc
Shape clamp groove, each circular arc clamp groove can be formed on the second support bar.Wherein, outside refers to pointing to revolution tank
The direction of the outside of body 2.
Material 13 can mix in rotary tank 2 with corresponding hydraulic fluid to produce corresponding chemical reaction so as to obtain
Desired product, in order to realize the purpose, the vacuum impregnation rotary drying agent also includes being used for into the rotary tank 2
Material 13 spray hydraulic fluid spray equipment.Further, in order to improve the rate of drying of material 13, reach what is uniformly heated
Purpose, the vacuum extractor for the rotary tank 2 to be vacuumized can also be installed on the vacuum impregnation rotary dryer.
The concrete structure of the vacuum extractor can have it is a variety of, as a kind of exemplary embodiments, the vacuum extractor
Taken out respectively positioned at the inside and outside vacuum-pumping tube 10 of the rotary tank 2 and installed in described including inner and outer end
The inner vacuum filter 9 of vacuum tube 10, vacuum filter 9 are used to before gas enters the vacuum-pumping tube 10 enter it
Row filtering.It can prevent what is carried in gas to come from the blocking vacuum tube such as solid state powder of material 13 by filtering gas, with
Improve the functional reliability of vacuum extractor.
Refering to Fig. 1, the direction of arrow of Fig. 1 pointing downwards is to vacuumize direction.Vacuum-pumping tube 10 and vacuum pumping pump phase
Even, for being vacuumized in the presence of vacuum pumping pump.
With continued reference to Fig. 1, as a kind of preferred embodiment, the spray equipment includes feed tube 7 and sparge pipe 8, feed liquor
Pipe 7 connects with sparge pipe 8, and the sparge pipe 8 is located in the rotary tank 2, and a part for feed tube 7 is located at turn around tank body 2
Outside；Refering to the arrow of Fig. 1 middle fingers to the right, the sensing of the arrow is the flow direction of hydraulic fluid, and hydraulic fluid is by feed liquor
Pipe 7 inputs, and is sprayed from material 13 of the sparge pipe 8 into rotary tank 2.
In a preferred embodiment, in order to reduce the overall volume of vacuum impregnation rotary dryer, improve all parts it
Between integrated level, the feed tube 7 is coaxially mounted in the vacuum-pumping tube 10, and in order to avoid feed tube 7 is to vacuumizing
The gas circuit of pipe 10, which is formed, to be hindered, formed with radial clearance to cause described return between the feed tube 7 and the vacuum-pumping tube 10
Turning the gas in tank body 2 can be expelled to by the radial clearance outside the vacuum-pumping tube 10, take out rotary tank 2 so as to realize
To the vacuum of production requirement.
Further, the vacuum impregnation rotary dryer can also include frame 1, and the rotary tank 2 is by being fixed on
The rotating shaft of the both sides of rotary tank 2 is arranged in the frame 1, rotating shaft by the bearings that are fixed in frame 1, wherein
Side rotating shaft is connected with the driving source of outside, so as to which rotary tank 2 can synchronously turn in the presence of external drive source with rotating shaft
Move to stir the material 13 in rotary tank 2；The driving source for example can be motor, and the motor is arranged on motor control box
In 14, the output shaft of motor is connected with the rotating shaft.
Preferably, in order that the structure for obtaining the rotary tank 2 is compacter, the rotary tank 2 wherein side turns
Axle is the hollow rotating shaft that connect with the rotary tank 2, the vacuum-pumping tube 10 be coaxially mounted to the hollow rotating shaft it is interior and with this
Sealed between hollow rotating shaft by dynamic seal.The setting of dynamic seal can cause in rotary tank 2 with axis of rotation
Meanwhile the transfixion of vacuum-pumping tube 10, while ensure the sealing state of rotary tank 2, prevent gas in rotary tank 2 via
Gap between vacuum-pumping tube 10 and hollow rotating shaft leaks out.
Specifically, packing seal element 11 and mechanical sealing parts 12, packing seal are included refering to Fig. 1, the dynamic seal
Part 11 is filled between the inner inner peripheral surface of hollow rotating shaft and the outer peripheral face of vacuum-pumping tube 10, wherein, the inner of hollow rotating shaft
Refer to one end of the close rotary tank 2 of hollow rotating shaft；Mechanical sealing parts 12 are arranged on the inner circumferential of the outer end of hollow rotating shaft
Between the outer peripheral face of face and vacuum-pumping tube 10, wherein, the outer end of hollow rotating shaft refers to the remote rotary tank 2 of hollow rotating shaft
One end.
Electric heating tube 3 and temperature-measuring part 4 are connected with control device 15, compact-sized between each part in order to improve
Property, reduce the overall volume of vacuum impregnation rotary dryer, the control device 15 is arranged in frame 1, because frame 1 is static
It is motionless, and electric heating tube 3 and temperature-measuring part 4 can rotate with the rotation of rotary tank 2, in order to realize stationary parts and motion
Electrical connection between part, the outer end of the rotating shaft of the opposite side of the rotary tank 2 are provided with sliding electric ring 6, the temperature-measuring part 4
It is connected with the electric heating tube 3 by the electric ring 6 of the cunning with the control device 15.
In a preferred embodiment, the part that can be in contact in the vacuum impregnation rotary dryer with hydraulic fluid is
Titanium alloy member.These parts include rotary tank 2, feed tube 7, sparge pipe 8, vacuum-pumping tube 10, vacuum filter 9 and filler
One or more of seal 11, by the way that these parts are made using titanium alloy material, acid hydraulic fluid can be prevented
Corroded components, while the operating temperature of vacuum impregnation rotary dryer can be improved so that the work of vacuum impregnation rotary dryer
It is higher than the operating temperature of the rotary dryer of enamel material general 150 DEG C -200 DEG C to make temperature, 13 dried moisture content of material
Dropped to from 20% within 5%, reach the aqueous index request of the fluidized bed drying process of next step, serve raising production efficiency
With the purpose for simplifying process.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
In this.In range of the technology design of the present utility model, a variety of simple variants can be carried out to the technical solution of the utility model.
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination should equally be considered as the utility model institute
Disclosure, belong to the scope of protection of the utility model.
Claims (10)
1. a kind of vacuum impregnation rotary dryer, it is characterised in that the vacuum impregnation rotary dryer includes being used for stored substance
Expect the rotary tank (2) of (13), be wrapped in the rotary tank along the ring circumferential direction of the outer peripheral face of the rotary tank (2)
(2) temperature-measuring part (4) of the electric heating tube (3) on and the temperature for measuring the rotary tank (2), wherein, the survey
Warm part (4) and the electric heating tube (3) are connected with control device (15), and the control device (15) can be according to the survey
The power output of electric heating tube (3) described in the temperature control of warm part (4) measurement.
2. vacuum impregnation rotary dryer according to claim 1, it is characterised in that the electric heating tube (3) with it is described
Heat-conducting daub (5) is filled between rotary tank (2), the temperature-measuring part (4) is embedded in the rotary tank (2) and led with described
Between hot glue mud (5).
3. vacuum impregnation rotary dryer according to claim 1, it is characterised in that the electric heating tube (3) passes through bar
Shape support is wrapped on the rotary tank (2).
4. vacuum impregnation rotary dryer according to claim 3, it is characterised in that the bar shaped support is included along institute
The length direction for stating rotary tank (2) is fixed on ladder shape support bar on the outer wall of the rotary tank (2) and along institute
The length direction for stating ladder shape support bar is evenly distributed on electric heating tube hold assembly on the ladder shape support bar.
5. vacuum impregnation rotary dryer according to claim 1, it is characterised in that the vacuum impregnation rotary dryer
Also including for the vacuum extractor for vacuumizing the rotary tank (2) and for the thing into the rotary tank (2)
Expect the spray equipment of (13) sprinkling hydraulic fluid.
6. vacuum impregnation rotary dryer according to claim 5, it is characterised in that the vacuum extractor includes the inner
Vacuumized respectively positioned at the inside and outside vacuum-pumping tube (10) of the rotary tank (2) and installed in described with outer end
The inner vacuum filter (9) to be filtered before gas enters the vacuum-pumping tube (10) to it of pipe (10).
7. vacuum impregnation rotary dryer according to claim 6, it is characterised in that the spray equipment includes coaxial peace
Feed tube (7) in the vacuum-pumping tube (10) and connected with the feed tube (7) with to the rotary tank (2)
The sparge pipe (8) of interior material (13) sprinkling hydraulic fluid；Between the feed tube (7) and the vacuum-pumping tube (10) formed with
Radial clearance is to enable the gas in the rotary tank (2) to be expelled to the vacuum-pumping tube (10) by the radial clearance
Outside.
8. vacuum impregnation rotary dryer according to claim 7, it is characterised in that the vacuum impregnation rotary dryer
Also include frame (1), rotating shaft of the rotary tank (2) by being fixed on the rotary tank (2) both sides is arranged on the machine
On frame (1), the rotating shaft of the rotary tank (2) wherein side is the hollow rotating shaft connected with the rotary tank (2), described to take out
Vacuum tube (10) is coaxially mounted in the hollow rotating shaft and between the hollow rotating shaft by dynamic seal dynamic sealing.
9. vacuum impregnation rotary dryer according to claim 8, it is characterised in that rotary tank (2) opposite side
The outer end of rotating shaft be provided with sliding electric ring (6), the temperature-measuring part (4) and the electric heating tube (3) pass through the electric ring of cunning
(6) it is connected with the control device (15)；And/or the control device (15) is arranged in the frame (1).
10. the vacuum impregnation rotary dryer according to any one in claim 1-9, it is characterised in that the thermometric
Part (4) is RTD；And/or the part that can be in contact in the vacuum impregnation rotary dryer with hydraulic fluid is titanium
Alloy component；And/or the vacuum impregnation rotary dryer also includes external thermal insulation (16), the electric heating tube (3) is located at institute
State between external thermal insulation (16) and the rotary tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720834602.6U CN206989621U (en) | 2017-07-11 | 2017-07-11 | Vacuum impregnation rotary dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720834602.6U CN206989621U (en) | 2017-07-11 | 2017-07-11 | Vacuum impregnation rotary dryer |
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| Publication Number | Publication Date |
|---|---|
| CN206989621U true CN206989621U (en) | 2018-02-09 |
Family
ID=61403910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720834602.6U Active CN206989621U (en) | 2017-07-11 | 2017-07-11 | Vacuum impregnation rotary dryer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112650327A (en) * | 2020-12-17 | 2021-04-13 | 浙江中控技术股份有限公司 | Temperature runaway prevention control system and method for electric heating tubular reactor |
| CN112797754A (en) * | 2020-12-11 | 2021-05-14 | 内蒙古双欣环保材料股份有限公司 | Rotary dryer and material drying method |
-
2017
- 2017-07-11 CN CN201720834602.6U patent/CN206989621U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797754A (en) * | 2020-12-11 | 2021-05-14 | 内蒙古双欣环保材料股份有限公司 | Rotary dryer and material drying method |
| CN112650327A (en) * | 2020-12-17 | 2021-04-13 | 浙江中控技术股份有限公司 | Temperature runaway prevention control system and method for electric heating tubular reactor |
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