CN110253030A - A kind of metal powder atomization preparing apparatus gas pre-heating system - Google Patents
A kind of metal powder atomization preparing apparatus gas pre-heating system Download PDFInfo
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- CN110253030A CN110253030A CN201910741880.0A CN201910741880A CN110253030A CN 110253030 A CN110253030 A CN 110253030A CN 201910741880 A CN201910741880 A CN 201910741880A CN 110253030 A CN110253030 A CN 110253030A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 90
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 238000000889 atomisation Methods 0.000 title claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 23
- 206010037660 Pyrexia Diseases 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 102
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/086—Cooling after atomisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
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- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to metallurgical powder production fields, particularly disclose a kind of metal powder atomization preparing apparatus gas pre-heating system, including heat exchange cabinet, air inlet pipe, hot gas escape pipe and heating compartment；The vertical rotating heat transfer body around central shaft rotation is installed in the heat exchange box body, upper end is connected to tail gas air inlet pipe, lower end is connected to tail gas escape pipe, the blowing slot that a circle is recessed inwardly is offered on the horizontal corresponding external side wall of rotating heat transfer of the air inlet pipe, several are communicated on the side wall of the blowing slot along the diversion channel of rotating heat transfer body sidewall distribution；The gas temperature being discharged by temperature control unit control system is constant.The present invention recycles the air with heat for preparing metal powder discharge, absorb heat therein, its heat is recycled again, reduce the loss of energy, improve the utilization rate of heat, it plays the role of energy saving, meets the sustainable development of modern enterprise, while being also beneficial to reduce enterprise's production cost.
Description
Technical field
The present invention relates to metallurgical powder production field, specifically a kind of metal powder atomization preparing apparatus is preheated with gas is
System.
Background technique
Powder metallurgy is to produce metal powder or metal powder is used to manufacture metal material by shaping and being sintered as raw material
The technology of material, composite material and various types product, it has become the key for solving the problems, such as new material, in new material
Very important effect is played in development.
The workpiece prepared using metal powder, the excellent properties that can not be obtained with other materials.Therefore, metal powder
End has a wide range of applications in fields such as metallurgy, the energy, electronics, medical treatment, aerospaces.Currently, preparing metal both at home and abroad
Mainly using the high pressure gas atomization for having crucible when powder.But the gas that existing metal powder aerosolizing device uses is all
It is that the relatively high inert gas of cost can be saved and be used with atomization gas if stationary temperature can be heated and be controlled to gas
Tolerance also can guarantee the stability of production technology；In addition, the heat for absorbing molten steel after current atomization gas atomization becomes high
It can be also directly discharged in outside air after wet body, cause a large amount of energy loss and waste.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of metal powder atomization preparing apparatus gas pre-heating system
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of metal powder atomization preparing apparatus gas pre-heating system, including heat exchange cabinet, air inlet pipe, hot gas escape pipe and add
Hot tank body；Air inlet pipe connection on the side wall of heat exchange cabinet, and air inlet pipe in the inner end of heat exchange cabinet towards horizontal direction,
It is connected between heat exchange cabinet and heating compartment by pipeline, hot gas escape pipe, heater box is connected in the other side of heating compartment
Heating element is installed in vivo, is heated to the intracorporal gas of heater box is entered, so that gas temperature is met metal powder preparation needs
It wants；The vertical rotating heat transfer body around central shaft rotation is installed in the heat exchange box body, is hollow knot in rotating heat transfer body
Structure, upper end are connected to tail gas air inlet pipe, and lower end is connected to tail gas escape pipe, and tail gas air inlet pipe, tail gas escape pipe pass through bearing
It is rotatably connected on heat exchange cabinet；
The blowing slot that a circle is recessed inwardly, air inlet pipe are offered on the horizontal corresponding external side wall of rotating heat transfer of the air inlet pipe
The gas being blown into heat exchange cabinet is directly blown in blowing slot；
Several are communicated on the side wall of the blowing slot along the diversion channel of rotating heat transfer body sidewall distribution, diversion channel is in addition
One end is pierced by from corresponding rotating heat transfer body upper end, lower end, and diversion channel is obliquely installed, and along the direction of rotation of rotating heat transfer body
Inclination guarantees the gas fluidity in diversion channel, drains the gas being blown into two sides by diversion channel, changes gas with rotation
Hot body time of contact is long, convenient for absorbing the heat on rotating heat transfer body.
Disperser is arranged in the corresponding heat exchange cabinet side of the heating element, and the intracorporal gas of heat exchange box is uniformly blown
On heating element, other side is equipped with the collector that is connected to the hot gas escape pipe, by the gas collection after heating and
It sends out.
System further includes having temperature control unit, and temperature control unit includes the first flow being mounted in air inlet pipe
Valve, the third flow valve being mounted on hot gas escape pipe, is arranged in heat exchange box body the second flow valve being mounted in offgas duct
Temperature sensor A, the intracorporal temperature sensor B of heater box is set and is electrically connected with above-mentioned component controller.
Temperature sensor A obtains the intracorporal temperature information of heat exchange box, and temperature information is transmitted on controller, control is passed through
The threshold values of device setting is compared judgement with the temperature information of temperature sensor A, which is heat exchange cabinet highest threshold values and changes
The minimum threshold values of hot tank body, when the temperature information of temperature sensor A is higher than heat exchange cabinet highest threshold values, controller control is first-class
Measure valve, third flow valve increase opening improves flow, control second flow valve, which reduces opening, reduces flow, make internal entrance to
The gas of preheating increases, and exhausted air quantity is reduced；When the temperature information of temperature sensor A threshold values minimum lower than heat exchange cabinet, control
Device, which controls first flow valve, third flow valve reduces opening reduces flow, and second flow valve increase opening improves strength, makes inside
What is entered is reduced to preheating gas, and exhaust gas inlet increases；When the temperature information of temperature sensor A is in heat exchange cabinet highest threshold values
Between the heat exchange minimum threshold values of cabinet, then first flow valve, second flow valve, third flow valve keep status constant；
Temperature sensor B obtains the intracorporal temperature information of heater box, and temperature information is transmitted to regard to passing through controller on controller
The threshold values of setting is compared judgement with the temperature information of temperature sensor B, which is heating compartment highest threshold values and heating
The minimum threshold values of cabinet, when the temperature information of temperature sensor B is higher than heating compartment highest threshold values, controller controls heating element
Reduce heating power；When the temperature information of temperature sensor B threshold values minimum lower than heating compartment, controller controls heating element
Improve heating power；When the temperature information of temperature sensor B is between heating compartment highest threshold values and the minimum threshold values of heating compartment,
Then heating element keeps existing heating power constant.
Further: each corresponding shunt slot location is respectively and fixedly provided with flow-stopping plate in the blowing slot, flow-stopping plate side with
The side of diversion channel is concordant, and the top of the flow-stopping plate is higher than corresponding shunting trench bottom, and the height of flow-stopping plate is less than and blows
The height of wind groove flows convenient for gas.
It is further: to be fixed with a circle heat conduction ring, heat conduction ring on corresponding blowing groove location on the inner wall of rotating heat transfer body
Thermal conductivity be greater than rotating heat transfer body thermal conductivity, be all provided on the inner wall of the rotating heat transfer body and on the inner wall of heat conduction ring
It is equipped with salient point, increases it with internal tail gas contact area, convenient for absorbing more heats.
It is further: to be coaxially fixed with driven gear on the side wall of the tail gas air inlet pipe, nibbled on the side of driven gear
Conjunction is connected with driving gear, and the central axis of driving gear is fixedly connected on the output shaft of motor, by motor driven tail gas into
Tracheae rotation drives its rotation so that rotating heat transfer body be made to rotate.
Further: the corresponding heat exchange top of the box of the tail gas air inlet pipe is fixed with tail gas inlet box, tail gas air inlet pipe
It extends upwardly into tail gas inlet box, offgas duct, offgas duct and apparatus for preparing metal powder is connected on the side of tail gas inlet box
Exhaust pipe connection, will be sent in tail gas inlet box with the tail gas of heat, utilize the heat in tail gas.
Compared with prior art, the beneficial effects of the present invention are: the present invention by prepare metal powder discharge with heat
Air recycled, absorb heat therein, its heat recycled again, reduce the loss of energy, improve heat
Utilization rate, play the role of energy saving, meet the sustainable development of modern enterprise, at the same be also beneficial to reduce enterprise production
Cost；The gas entered in carrying out heat transfer process comes into full contact with rotating heat transfer body, enables heat thereon in the short time
It is interior to be taken away by gas, heat exchange efficiency is improved, heat reuse is conducive to；On the one hand temperature control unit can control gas
Flow, stablize the gas temperature being discharged in heat exchange box body in preset threshold values, guarantee with tail gas heat exchange efficiency, sufficiently inhale
Heat is received, heat losses are avoided, improves conversion ratio；Still further aspect control unit is come also according to the intracorporal temperature change of heater box
The power of heating element is adjusted, inner, constant temperature is kept, makes system construction more safety and stability, is provided for metal powder production
Sufficient temperature environment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of metal powder atomization preparing apparatus gas pre-heating system.
Fig. 2 is the structural schematic diagram of A-A in Fig. 1.
Fig. 3 is the structural schematic diagram of B-B in Fig. 1.
Fig. 4 is a kind of control signal of the temperature control unit of metal powder atomization preparing apparatus gas pre-heating system
Figure.
In figure: 1- heat exchange cabinet, 2- air inlet pipe, 3- hot gas escape pipe, 4- heating compartment, 5- rotating heat transfer body, 6- tail gas
Air inlet pipe, 7- tail gas inlet box, 8- offgas duct, 9- bearing, 10- tail gas escape pipe, 11- motor, 12- driving gear, 13- are driven
Gear, 14- blowing slot, 15- flow-stopping plate, 16- diversion channel, 17- heat conduction ring, 18- salient point, 19- disperser, 20- collector, 21-
Heating element, 22- first flow valve, 23- second flow valve, 24- third flow valve, 25- temperature sensor A, 26- controller,
27- temperature sensor B.
Specific embodiment
Embodiment 1
Please refer to figure, in the embodiment of the present invention, a kind of metal powder atomization preparing apparatus gas pre-heating system, including heat exchange box
Body 1, air inlet pipe 2, hot gas escape pipe 3 and heating compartment 4；The connection of air inlet pipe 2 is on the side wall of heat exchange cabinet 1, and air inlet
Pipe 2 towards horizontal direction, makes the gas level entered in air inlet pipe 2 blowout in the inner end of heat exchange cabinet 1, heat exchange cabinet 1 with plus
It is connected to, the gas to exchange heat in cabinet 1 is sent in heating compartment 4, heating compartment 4 is in addition by pipeline between hot tank body 4
It is connected to hot gas escape pipe 3 on side, heating element 21 is installed in heating compartment 4, the gas entered in heating compartment 4 is added
Heat makes gas temperature meet metal powder preparation needs；It is described heat exchange cabinet 1 in be equipped with it is vertical around central shaft rotation
Rotating heat transfer body 5, interior rotating heat transfer body 5 is hollow structure, and upper end is connected to tail gas air inlet pipe 6, and lower end is connected to tail gas escape pipe 10,
And tail gas air inlet pipe 6, tail gas escape pipe 10 are rotatably connected on heat exchange cabinet 1 by bearing 9, rotating heat transfer body 5 and tail
Gas air inlet pipe 6, tail gas escape pipe 10 rotate synchronously；It is opened up on horizontal corresponding 5 lateral wall of rotating heat transfer body of the air inlet pipe 2
The blowing slot 14 for having a circle to be recessed inwardly, the depth of blowing slot 14 are 20-40mm, and air inlet pipe 2 is blown into the gas in heat exchange cabinet 1
Body is directly blown in blowing slot 14；Several are communicated on the side wall of the blowing slot 14 to be distributed along 5 side wall of rotating heat transfer body
Diversion channel 16, the other end of diversion channel 16 is pierced by from corresponding 5 upper end of rotating heat transfer body, lower end, guarantees in diversion channel 16
Gas fluidity, by diversion channel 16 by the gas being blown into two sides drain, make gas and 5 time of contact of rotating heat transfer body
It is long, convenient for absorbing the heat on rotating heat transfer body 5；The diversion channel 16 is obliquely installed, and along the rotation side of rotating heat transfer body 5
To inclination, the mobility of internal gas is improved.
Driven gear 13, the company of engagement on the side of driven gear 13 are coaxially fixed on the side wall of the tail gas air inlet pipe 6
It is connected to driving gear 12, the central axis of driving gear 12 is fixedly connected on the output shaft of motor 11, drives tail by motor 11
Gas air inlet pipe 6 rotates, so that rotating heat transfer body 5 be made to rotate, drives its rotation.
It is fixed with tail gas inlet box 7 at the top of the corresponding heat exchange cabinet 1 of the tail gas air inlet pipe 6, tail gas air inlet pipe 6 is stretched upwards
Entering into tail gas inlet box 7, the tail gas in tail gas inlet box 7 is able to enter in tail gas air inlet pipe 6, and the one of tail gas inlet box 7
Offgas duct 8 is connected on side, offgas duct 8 is connected to the exhaust pipe of apparatus for preparing metal powder, and the tail gas with heat is sent to
In tail gas inlet box 7, the heat in tail gas is utilized.
Heating element 21, the setting dispersion of corresponding 1 side of heat exchange cabinet of heating element 21 are installed in the heating compartment 4
Device 19 uniformly blows the gas to exchange heat in cabinet 1 on heating element 21, and other side is equipped with and the hot gas escape pipe
The collector 20 of 3 connections, by the gas collection after heating and submitting.
Be provided with temperature control unit in systems, temperature control unit include be mounted on it is first-class in air inlet pipe 2
Amount valve 22, the second flow valve 23 being mounted in offgas duct 8, the third flow valve 24 being mounted on hot gas escape pipe 3, setting exist
It temperature sensor A25, the temperature sensor B27 that is arranged in heating compartment 4 in heat exchange cabinet 1 and is electrically connected with above-mentioned component
The controller 26 connect.
Temperature sensor A25 obtains the temperature information in heat exchange cabinet 1, and temperature information is transmitted on controller 26, leads to
The threshold values for crossing the setting of controller 26 is compared judgement with the temperature information of temperature sensor A25, which is to exchange heat cabinet most
High threshold values and the heat exchange minimum threshold values of cabinet, when the temperature information of temperature sensor A25 is higher than heat exchange cabinet highest threshold values, control
Device 26 controls first flow valve 22, the increase opening of third flow valve 24 improves flow, and control second flow valve 23 reduces opening drop
Low discharge increases internal entrance gas to be preheated, and exhausted air quantity is reduced, and generates more preheating gas；Work as temperature sensing
When the temperature information of device A25 is lower than heat exchange cabinet minimum threshold values, controller 26 controls first flow valve 22, third flow valve 24 subtracts
Small opening reduces flow, and the increase opening of second flow valve 23 improves strength, make it is internal enter reduced to preheating gas, exhaust gas into
Enter amount increase, more heats are provided；When the temperature information of temperature sensor A25 is in heat exchange cabinet highest threshold values and heat exchange cabinet
Between minimum threshold values, then first flow valve 22, second flow valve 23, third flow valve 24 keep status constant, make gas in this way
It is entered in heating compartment 4 with stable temperature from heat exchange cabinet 1.
Temperature sensor B27 obtains the temperature information in heating compartment 4, and temperature information is transmitted to regard on controller 26,
The threshold values set by controller 26 is compared judgement with the temperature information of temperature sensor B27, which is heating compartment
Highest threshold values and the minimum threshold values of heating compartment, heating compartment highest threshold values are 100 DEG C, and the minimum threshold values of heating compartment is 80 DEG C, when
When the temperature information of temperature sensor B27 is higher than heating compartment highest threshold values, controller 26, which controls heating element 21, reduces fever
Power, reduces the generation of heat, to reduce the energy consumption of heating element 21, adds when the temperature information of temperature sensor B27 is lower than
When the minimum threshold values of hot tank body, controller 26 controls heating element 21 and improves heating power, increases the generation of heat, proposes temperature
Height, when the temperature information of temperature sensor B27 is between heating compartment highest threshold values and the minimum threshold values of heating compartment, then heating unit
Part 21 keeps existing heating power constant, guarantees that the air themperature sent out is constant, provides stable gas for production.
Embodiment 2
Flow-stopping plate 15,15 side of flow-stopping plate and shunting are respectively and fixedly provided at each corresponding diversion channel 16 in the blowing slot 14
The side of slot 16 is concordant, blows and is imported into corresponding diversion channel 16 in the gas on flow-stopping plate 15, plays drainage, avoid gas
Body flows along blowing slot 14；The top of the flow-stopping plate 15 is higher than corresponding 16 bottom of diversion channel, and the height of flow-stopping plate 15
Degree is less than the height of blowing slot 14, flows convenient for gas.
Embodiment 3
It is fixed with a circle heat conduction ring 17 on corresponding 14 position of blowing slot on the inner wall of the rotating heat transfer body 5, heat conduction ring 17
Thermal conductivity is greater than the thermal conductivity of rotating heat transfer body 5, and heat conduction ring 17 is made to absorb heat, is sent into more heats for blowing slot 14,
It is provided with salient point 18 on the inner wall of the rotating heat transfer body 5 and on the inner wall of heat conduction ring 17, connects it with internal tail gas
Contacting surface product increases, convenient for absorbing more heats.
The internal tail gas with heat is discharged in metal powder atomization preparing apparatus, is connected to the offgas duct 8 of the system,
Tail gas is sent to inside, tail gas flows in rotating heat transfer body 5, heat is absorbed by rotating heat transfer body 5, and to heat exchange
Diffusion in cabinet 1, the rotation of rotating heat transfer body 5 are contacted with the gas being blown into, and are diffused quickly into heat in ambient gas, are rotated
The mobility for the gas that the blowing slot 14 and diversion channel 16 opened up on heat exchanging body 5 makes enhances, while increasing contact heat-exchanging area,
Be conducive to the gas entered and absorb heat, the heat after heat exchange is sent to heating in heating compartment 4, gas temperature is made to meet preparation
It needs.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of metal powder atomization preparing apparatus gas pre-heating system, including heat exchange cabinet (1), air inlet pipe (2), hot gas go out
Tracheae (3) and heating compartment (4)；Air inlet pipe (2) connection is on the side wall of heat exchange cabinet (1), and air inlet pipe (2) is exchanging heat
The inner end of cabinet (1) is exchanged heat and is connected between cabinet (1) and heating compartment (4) by pipeline towards horizontal direction, heating compartment
(4) hot gas escape pipe (3) are connected in other side, heating element (21) are installed in heating compartment (4), which is characterized in that
The vertical rotating heat transfer body (5) around central shaft rotation is installed in heat exchange cabinet (1), is in rotating heat transfer body (5)
Hollow structure, upper end are connected to tail gas air inlet pipe (6), and lower end is connected to tail gas escape pipe (10), and tail gas air inlet pipe (6), tail gas
Escape pipe (10) is rotatably connected in heat exchange cabinet (1) by bearing (9)；
The blowing slot that a circle is recessed inwardly is offered on horizontal corresponding rotating heat transfer body (5) lateral wall of the air inlet pipe (2)
(14)；
Several diversion channels (16) being distributed along rotating heat transfer body (5) side wall are communicated on the side wall of the blowing slot (14),
The other end of diversion channel (16) is pierced by from corresponding rotating heat transfer body (5) upper end, lower end；
System further includes having temperature control unit, and temperature control unit includes the first flow valve being mounted on air inlet pipe (2)
(22), the second flow valve (23) that is mounted on offgas duct (8), the third flow valve (24) being mounted on hot gas escape pipe (3),
Temperature sensor A(25 in heat exchange cabinet (1) is set), temperature sensor B(27 in heating compartment (4) is set) and
The controller (26) being electrically connected with above-mentioned component；
Temperature sensor A(25) temperature information to exchange heat in cabinet (1) is obtained, temperature information is transmitted on controller (26),
It is compared judgement with the temperature information of temperature sensor A(25) by the threshold values that controller (26) are set, which is heat exchange
Cabinet highest threshold values and the heat exchange minimum threshold values of cabinet, when the temperature information of temperature sensor A(25) is higher than heat exchange cabinet highest valve
When value, controller (26) controls first flow valve (22), third flow valve (24) increase opening improves flow, controls second flow
Valve (23), which reduces opening, reduces flow, increases internal entrance gas to be preheated, exhausted air quantity is reduced；As temperature sensor A
(25) when temperature information is lower than heat exchange cabinet minimum threshold values, controller (26) controls first flow valve (22), third flow valve
(24) reduce opening reduction flow, second flow valve (23) increase opening improves strength, makes subtracting to preheating gas for internal entrance
Few, exhaust gas inlet increases；When the temperature information of temperature sensor A(25) is minimum in heat exchange cabinet highest threshold values and heat exchange cabinet
Between threshold values, then first flow valve (22), second flow valve (23), third flow valve (24) keep status constant；
Temperature sensor B(27) obtain heating compartment (4) in temperature information, temperature information is transmitted to regard to controller (26)
On, judgement is compared with the temperature information of temperature sensor B(27) by the threshold values that controller (26) are set, which is to add
Hot tank body highest threshold values and the minimum threshold values of heating compartment, when the temperature information of temperature sensor B(27) is higher than heating compartment highest
When threshold values, controller (26), which controls heating element (21), reduces heating power；When the temperature information of temperature sensor B(27) is lower than
When the minimum threshold values of heating compartment, controller (26) controls heating element (21) and improves heating power；When temperature sensor B's)
Temperature information is between heating compartment highest threshold values and the minimum threshold values of heating compartment, then heating element (21) keeps existing fever function
Rate is constant.
2. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 1, it is characterised in that: institute
It states diversion channel (16) to be obliquely installed, and is tilted along the direction of rotation of rotating heat transfer body (5).
3. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 2, it is characterised in that: institute
It states in blowing slot (14) and is respectively and fixedly provided with flow-stopping plate (15) at each corresponding diversion channel (16), flow-stopping plate (15) side and shunting
The side of slot (16) is concordant.
4. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 3, it is characterised in that: institute
The top for stating flow-stopping plate (15) is higher than corresponding diversion channel (16) bottom, and the height of flow-stopping plate (15) is less than blowing slot (14)
Height.
5. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 1 to 4, feature
It is: is fixed with a circle heat conduction ring (17), heat conduction ring on corresponding blowing slot (14) position on the inner wall of rotating heat transfer body (5)
(17) thermal conductivity is greater than the thermal conductivity of rotating heat transfer body (5), on the inner wall of the rotating heat transfer body (5) and heat conduction ring
(17) salient point (18) are provided on inner wall.
6. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 5, it is characterised in that: institute
It states and is coaxially fixed on the side wall of tail gas air inlet pipe (6) driven gear (13), engage and be connected on the side of driven gear (13)
The central axis of driving gear (12), driving gear (12) is fixedly connected on the output shaft of motor (11).
7. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 6, it is characterised in that: institute
It states and is fixed with tail gas inlet box (7) at the top of the corresponding heat exchange cabinet (1) of tail gas air inlet pipe (6), tail gas air inlet pipe (6) extends upwardly into
In to tail gas inlet box (7), offgas duct (8) are connected on the side of tail gas inlet box (7).
8. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 1, it is characterised in that: institute
Corresponding heat exchange cabinet (1) side setting disperser (19) of heating element (21) is stated, the gas in cabinet (1) is uniform by exchanging heat
It blows on heating element (21), other side is equipped with the collector (20) being connected to the hot gas escape pipe (3).
9. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 1, it is characterised in that: institute
Stating heating compartment highest threshold values is 100 DEG C.
10. a kind of metal powder atomization preparing apparatus gas pre-heating system according to claim 1, it is characterised in that:
The minimum threshold values of heating compartment is 80 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910741880.0A CN110253030B (en) | 2019-08-13 | 2019-08-13 | A kind of metal powder atomization preparing apparatus gas pre-heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910741880.0A CN110253030B (en) | 2019-08-13 | 2019-08-13 | A kind of metal powder atomization preparing apparatus gas pre-heating system |
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| CN110253030A true CN110253030A (en) | 2019-09-20 |
| CN110253030B CN110253030B (en) | 2019-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112517918A (en) * | 2020-12-02 | 2021-03-19 | 青岛云路先进材料技术股份有限公司 | Preparation method and production equipment of high-sphericity gas atomized powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112517918A (en) * | 2020-12-02 | 2021-03-19 | 青岛云路先进材料技术股份有限公司 | Preparation method and production equipment of high-sphericity gas atomized powder |
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