CN202547309U - Vertical heat exchanger - Google Patents
Vertical heat exchanger Download PDFInfo
- Publication number
- CN202547309U CN202547309U CN2012201860196U CN201220186019U CN202547309U CN 202547309 U CN202547309 U CN 202547309U CN 2012201860196 U CN2012201860196 U CN 2012201860196U CN 201220186019 U CN201220186019 U CN 201220186019U CN 202547309 U CN202547309 U CN 202547309U
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- cylindrical shell
- heat exchanger
- vertical heat
- discharge nozzle
- pipe
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Abstract
The utility model provides a vertical heat exchanger which is small in size, low in material loss and manufacturing cost and high in heat exchange efficiency. The vertical heat exchanger comprises a barrel, a feed pipe is arranged at the upper end of the barrel, a discharge pipe is arranged at the lower end of the barrel, a separating and guiding device is arranged on the inner lower portion of the barrel, a gap for materials to flow through is reserved between the separating and guiding device and the inner wall of the barrel, a discharge device is arranged on the discharge pipe, a lower air pipe penetrates through the barrel to extend into a lower space formed by the lower side of the separating and guiding device and the materials, and an upper air pipe penetrates through the barrel to extend into an upper space formed by the inner top of the barrel and the materials. One of the upper air pipe and the lower air pipe is an air inlet pipe while the other one is an air outlet pipe.
Description
Technical field
Present technique relates to vertical heat exchanger, preheater, baker, cooler or vertical furnace, is used for lump material is carried out heat exchange, material is heated, cools off when perhaps material being heated make it to react.
Background technology
The rotation drum type dryer is adopted in the oven dry of general lump material mostly.The revolving drum of this dryer is to be in tilted layout at an angle, and material is sent in the revolving drum by high-end, carries out heat exchange with hot flue gas.After the oven dry, material is discharged from low side.For improving drying efficiency, raising material unit generally is installed on rotating cylinder, material is lifted certain altitude shed again, increase the contact area of material and flue gas greatly.The common floor space of this rotary drying machine is bigger, and the thermal efficiency is not high, and cost is higher, generally places in the factory building, and its transmission mechanism maintenance and repair is complicated, and the dust concentration of discharging is big.It also has a deficiency is to cause the fragmentation of material easily.Adopt this dryer if dry blue charcoal, breakage rate will be very high.
Present tower drier, its barrel have multilayer to divide the up-small and down-big umbrella body of spreading and up big and down small loudspeaker body.Its principle is the top feeding of material from dryer; Gap between inside, umbrella body periphery and the cylinder inboard wall of the loudspeaker body branch that successively trickles spills; Freely fall the bottom, thermal current then gets into from the bottom of dryer, in uphill process, carries out heat exchange with material.Than higher, ratio of height to diameter is big usually for this tower drier, the same broken problem of bigger material that exists.
Summary of the invention
The purpose of present technique provides the vertical heat exchanger that a kind of volume is little, material is damaged less, cost is low, heat exchanger effectiveness is high.
This vertical heat exchanger comprises cylindrical shell, is provided with feed pipe in the cylindrical shell upper end, is provided with discharge nozzle in the cylindrical shell lower end, and the bottom is provided with the sub-material guiding device in cylindrical shell, has the gap that supplies material to pass through between sub-material guiding device and the cylinder inboard wall; Discharge nozzle is provided with drawing mechanism; Lower air conduit passes cylindrical shell and extend into below the sub-material guiding device and in the lower space of the formation between the material; Upcast ventilation pipe passes cylindrical shell and extend in the upper space that between cylindrical shell inner top and material, forms; One in upcast ventilation pipe and the lower air conduit is blast pipe, and another is a discharge pipe.
For present technique, when blast pipe gets into the higher gas of temperature, the gas that the discharge pipe discharge temperature is lower, it just is equivalent to be used for heat exchanger (baker) that material is heated, perhaps is equivalent to be used for material is carried out pre-warmed preheater.When blast pipe gets into the lower gas of temperature, the gas that the discharge pipe discharge temperature is higher, it just is equivalent to be used for heat exchanger (cooler) that material is cooled off.When the very high flue gas of blast pipe entering temperature, the flue gas that the discharge pipe discharge temperature is lower, it just is equivalent to vertical furnace, and material not only has the heat exchanging process of physics with flue gas in vertical furnace, and material also has the process of chemical reaction.So still be lower air conduit to upcast ventilation pipe all can (certain, when upcast ventilation pipe was blast pipe, lower air conduit then be a discharge pipe as blast pipe; When upcast ventilation pipe was discharge pipe, lower air conduit then was a blast pipe).For the ease of describing, with the blast pipe of lower air conduit as the higher gas of entering temperature, upcast ventilation pipe is as the discharge pipe of the low gas of discharge temperature below.Present technique is applicable to the heat and mass to lump material.
Present technique and the difference of existing tower drier:
Existing tower drier, when the trickling downwards of material freedom, the material on the same cross section of cylindrical shell has the randomness of distribution, that is to say, and the distance between the material varies in size.In order to make gas and material carry out heat exchange, gas need pass between the material, and gapped between the material is necessary.But the size in this gap is uncontrollable (gap on the same cross section of cylindrical shell maybe be different), and this causes gas " short circuit ", and in other words, the gas pressure on the same cross section of cylindrical shell is different.This has just caused inhomogeneous to drying materials.In addition, for lump material, will inevitably bring higher breakage rate in the downward trickling of freedom.
Present technique is then different, and in the present technique, the discharge of material is the drawing mechanism control that relies on the discharge nozzle, and material gets into cylindrical shell from feed pipe.In the drawing mechanism action, when material was discharged from discharge nozzle, material got into cylindrical shell through feed pipe, and the material in the cylindrical shell is closely to link to each other up and down, does not have tomography.Therefore, in the present technique, flowing of material is not to resemble the free-falling of existing tower drier, but controlled mobile; This makes that the gap between the material is essentially identical, therefore, and the gas that flows through in the gap between the material; Gas pressure on the same cross section of cylindrical shell is basic identical; Gas can " short circuit ", and gas and material heat exchange are uniformly, have guaranteed the homogenieity of material.Simultaneously, also improved the heat exchanger effectiveness of gas and material.In addition, in the present technique, material is controlled moving down, and compares with freedom trickling downwards, and inevitable breakage rate is low, and present technique is particularly useful for the oven dry to blue charcoal.In addition, present technique has multilayer to divide the umbrella body of spreading and the tower drier of loudspeaker body with respect to existing barrel, and the cylindrical shell height can be lower, and volume is little.
Above-mentioned vertical heat exchanger, along radial direction, said gap equates on same cross section.Said gap equates; The material that flows through in the gap has guaranteed that further the gas pressure on the same cross section of cylindrical shell is basic identical, like this more even on same cross section; Material heat exchange on gas and the same cross section is more even, has guaranteed the homogenieity of material.
Above-mentioned vertical heat exchanger, sub-material guiding device are up-small and down-big bullets; Perhaps the sub-material guiding device is an one flat plate.
Above-mentioned vertical heat exchanger, said feed pipe and discharge nozzle are one, and cylindrical shell, feed pipe, discharge nozzle are coaxial.Best, upcast ventilation pipe is a coaxial configuration near the latter end and the feed pipe of its end, and lower air conduit is coaxial with cylindrical shell near the latter end of its end.
Above-mentioned vertical heat exchanger, said feed pipe and discharge nozzle are more than two, and feed pipe and discharge nozzle to be distributed on the tubular axis be on the circumference at center.
In order conveniently to control load and inlet amount, above-mentioned vertical heat exchanger is provided with drawing-in device on the feed pipe, and the discharging controller of the feed control of control drawing-in device action, the action of control drawing mechanism all is electrically connected with central processing unit.Like this, can accurately control load and inlet amount, make that load and inlet amount are basic identical.
Above-mentioned vertical heat exchanger, feed pipe can telescopically be arranged on the cylindrical shell up and down with respect to cylindrical shell.Through flexible (up-down) up and down of feed pipe, can control the height of material in the cylindrical shell.
Above-mentioned vertical heat exchanger is provided with the wind-warm syndrome sensor that is used to detect gas temperature in the lower air conduit on the last lower air conduit, it also comprises and is arranged on the temperature of charge sensor lower air conduit bottom, that be used to detect the temperature of charge that preparation discharges from discharge nozzle.Detect the gas temperature that gets into and discharge cylindrical shell through the wind-warm syndrome sensor, the control time of staying of material in cylindrical shell, make material when the temperature of charge of setting, to discharge cylindrical shell, convenient control also can energy efficient.
Above-mentioned vertical heat exchanger, it also comprises the up big and down small taper rewinding tube that is connected the cylindrical shell lower end, the bottom of taper rewinding tube connects discharge nozzle.
Description of drawings
Fig. 1 is the structural representation of present embodiment.
The specific embodiment
Referring to tower drier shown in Figure 1, comprise cylindrical tube 1, be provided with the feed pipe 3 that can stretch up and down in the bottom of feed bin 2.The lower end outlet of feed pipe extend into the cylindrical shell upper end.Up big and down small taper rewinding tube 4 is connected the cylindrical shell lower end, and the bottom of taper rewinding tube connects discharge nozzle 5.The bottom is provided with up-small and down-big bullet 6 (sub-material guiding device) in cylindrical shell, has the annular gap 7 that supplies material to pass through between bullet and the cylinder inboard wall.Bullet 6 is supported on the inwall of taper rewinding tube 4 through supporting leg 23.Cylindrical shell, feed pipe, discharge nozzle, bullet are coaxial.On same cross section, the distance of the neighboring of bullet between the cylindrical shell inner rim equate, in other words on same cross section along radial direction, the width of said annular gap equates.
The upcast ventilation pipe latter end 14 near its end of upcast ventilation pipe 12 is a coaxial configuration with feed pipe, and lower air conduit 13 is coaxial with cylindrical shell near the lower air conduit latter end 15 of its end.Lower air conduit latter end 15 is positioned at lower space 9; Upcast ventilation pipe latter end 14 passes cylindrical shell and extend in the upper space.Because bullet 6 is arranged at lower air conduit latter end 15 tops, around lower air conduit latter end 15, formed the cavity (lower space) that does not have material, material falls from the periphery of bullet, and can not get into or stop up lower air conduit.
Be in series with lock feeding device (mechanism) 16 (comprising drawing-in device and feed pipe airlock) on the feed pipe.Lock feeding device 16 can guarantee to feed material, plays the gas that prevents in the cylindrical shell simultaneously and flows into the effect in the cylindrical shell from feed pipe outflow or extraneous air.Be in series with gate 24, lock 17 (comprising drawing mechanism and discharge nozzle airlock) of wind drawing mechanism (mechanism) on the discharge nozzle.Lock wind drawing mechanism 17 can guarantee to control the discharge of material, and the gas that plays simultaneously in the cylindrical shell flows into the effect in the cylindrical shell from discharge nozzle outflow or extraneous air.Lock feeding device 16, lock wind drawing mechanism 17 belong to prior art.
Be provided with the wind-warm syndrome sensor 18 that is used to detect gas temperature in the lower air conduit on the last lower air conduit and detect the pressure sensor 19 of going up gas pressure in the lower air conduit, taper rewinding tube 4 is provided with and is positioned at the temperature of charge sensor 20 lower air conduit side lower part, that be used to detect the material temperature of preparing to draw off.Feed bin is provided with two level sensors 21,25 up and down.The discharging controller of the feed control of wind-warm syndrome sensor 18, pressure sensor 19, temperature of charge sensor 20, level sensor, the action of control lock feeding device, the action of control lock wind drawing mechanism all is electrically connected with central processing unit.Level sensor is used to detect the height of materials in the feed bin.When level sensor 25 positions below material level is lower than, reinforced in feed bin through the feeding device (not shown), when material is higher than top level sensor 21 positions in the feed bin, stop to feed in raw material.
In feed pipe got into cylindrical shell, 7 got into taper rewinding tube 4 to lump material (like blue charcoal) through the gap, discharge through the discharge nozzle of bottom from feed bin.The higher gas of temperature enters in the lower space 9 from lower air conduit, after gap 7 is upward through the gap between the material, arrives upper space 11, discharges through upcast ventilation pipe again, links to each other with air-introduced machine 22 as the upcast ventilation pipe of discharge pipe.Perhaps airduct enters into cylindrical shell internal upper part cavity 11 to the higher gas of temperature from top, is passed down through the bed of material 8, through intermittently 7 arriving in the lower space 9, gets into the bottom airduct and is discharged by the air-introduced machine (not shown).
Discharge nozzle stretches into length in the cylindrical shell when longer, and the amount of material is less in the cylindrical shell, on the contrary, discharge nozzle stretch in the cylindrical shell length more in short-term, the amount of the material in the cylindrical shell is more.When discharging speed during than speed, material carries out time of heat exchange in cylindrical shell longer, and on the contrary, when discharging speed during than speed, material carries out time of heat exchange in cylindrical shell longer.Through detection, regulate the upper-lower position of feed pipe, and the control material makes the temperature of charge of discharge nozzle discharge reach requirement from the discharging speed of discharge nozzle discharge to gas temperature, pressure in the last lower air conduit.Material meets the requirements of temperature, opens the sluices 24, and central processing unit sends instruction to the discharging controller, makes lock wind drawing mechanism move, and material is discharged from discharge nozzle.Simultaneously, central processing unit sends instruction to feeding material controller, makes lock feeding device action, material pass through feed pipe entering cylindrical shell, and cylindrical shell is replenished material.In this process, gas directly contacts with material, carries out heat exchange; The total amount (height of material) of the material in the cylindrical shell remains unchanged.
In the present technique, the discharge of material is the drawing mechanism control that relies on the discharge nozzle, the drawing-in device control on the dependence feed pipe of the entering of material; In the drawing mechanism action, when material is discharged from discharge nozzle, the drawing-in device action, material gets into cylindrical shell through feed pipe, and the material in the cylindrical shell is closely to link to each other up and down, does not have tomography.Therefore, in the present technique, flowing of material is not to resemble the free-falling of existing tower drier, but controlled mobile; Add that on same cross section the neighboring of sub-material guiding device equates to the distance between the cylindrical shell inner rim; This makes that the distribution of the material on the same cross section of cylindrical shell is uniformly, the gap between the material essentially identical, therefore, and the gas that flows through in the gap between the material, the gas pressure on the same cross section of cylindrical shell is basic identical.The heat exchange of gas and material uniformly, guaranteed the homogenieity of material.Simultaneously, also improved the heat exchanger effectiveness of gas and material.Present technique is specially adapted to the oven dry to blue charcoal.Blue charcoal carries out heat exchange with motion gas from bottom to top during controlled motion from top to bottom and is dried in the vertical heat exchanger (dryer) of actionless present technique, blue charcoal breakage rate reduces greatly.
Claims (10)
1. vertical heat exchanger comprises cylindrical shell, is provided with feed pipe in the cylindrical shell upper end, is provided with discharge nozzle in the cylindrical shell lower end, and it is characterized in that: the bottom is provided with the sub-material guiding device in cylindrical shell, has the gap that supplies material to pass through between sub-material guiding device and the cylinder inboard wall; Discharge nozzle is provided with drawing mechanism; Lower air conduit passes cylindrical shell and extend into below the sub-material guiding device and in the lower space of the formation between the material; Upcast ventilation pipe passes cylindrical shell and extend in the upper space that between cylindrical shell inner top and material, forms; One in upcast ventilation pipe and the lower air conduit is blast pipe, and another is a discharge pipe.
2. vertical heat exchanger as claimed in claim 1 is characterized in that: along radial direction, said gap equates on same cross section.
3. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: the sub-material guiding device is up-small and down-big bullet.
4. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: the sub-material guiding device is an one flat plate.
5. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: said feed pipe and discharge nozzle are one, and cylindrical shell, feed pipe, discharge nozzle are coaxial.
6. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: said feed pipe and discharge nozzle are more than two, and feed pipe and discharge nozzle to be distributed on the tubular axis be on the circumference at center.
7. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: drawing-in device is set on the feed pipe, and the discharging controller of the feed control of control drawing-in device action, the action of control drawing mechanism all is electrically connected with central processing unit.
8. according to claim 1 or claim 2 vertical heat exchanger, it is characterized in that: feed pipe can telescopically be arranged on the cylindrical shell up and down with respect to cylindrical shell.
9. according to claim 1 or claim 2 vertical heat exchanger; It is characterized in that: go up and to be provided with the wind-warm syndrome sensor that is used to detect gas temperature in the lower air conduit on the lower air conduit, it also comprise be arranged on the lower air conduit bottom, be used to detect the temperature of charge sensor of preparation from the temperature of charge of discharge nozzle outflow.
10. according to claim 1 or claim 2 vertical heat exchanger it is characterized in that: further comprising the up big and down small taper rewinding tube that is connected the cylindrical shell lower end, and the bottom of taper rewinding tube connects discharge nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201860196U CN202547309U (en) | 2012-04-27 | 2012-04-27 | Vertical heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201860196U CN202547309U (en) | 2012-04-27 | 2012-04-27 | Vertical heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547309U true CN202547309U (en) | 2012-11-21 |
Family
ID=47167929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201860196U Expired - Lifetime CN202547309U (en) | 2012-04-27 | 2012-04-27 | Vertical heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620536A (en) * | 2012-04-27 | 2012-08-01 | 南京苏冶钙业技术有限公司 | Vertical heat exchanger |
| CN104422256A (en) * | 2013-09-02 | 2015-03-18 | 中国农业机械化科学研究院 | Material drying device and method |
| CN111448437A (en) * | 2017-12-07 | 2020-07-24 | 保尔伍斯股份有限公司 | Drying hopper and grinding and drying equipment comprising same |
-
2012
- 2012-04-27 CN CN2012201860196U patent/CN202547309U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620536A (en) * | 2012-04-27 | 2012-08-01 | 南京苏冶钙业技术有限公司 | Vertical heat exchanger |
| CN104422256A (en) * | 2013-09-02 | 2015-03-18 | 中国农业机械化科学研究院 | Material drying device and method |
| CN104422256B (en) * | 2013-09-02 | 2016-05-25 | 中国农业机械化科学研究院 | A kind of material drying device and method |
| CN111448437A (en) * | 2017-12-07 | 2020-07-24 | 保尔伍斯股份有限公司 | Drying hopper and grinding and drying equipment comprising same |
| CN111448437B (en) * | 2017-12-07 | 2022-05-31 | 保尔伍斯股份有限公司 | Drying hopper and grinding and drying equipment comprising same |
| US11498081B2 (en) | 2017-12-07 | 2022-11-15 | Paul Wurth S.A. | Drying hopper as well as grinding and drying plant comprising such |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
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| CX01 | Expiry of patent term |