CN203061187U - Vertical type stirring-free polycondensation reactor - Google Patents
Vertical type stirring-free polycondensation reactor Download PDFInfo
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- CN203061187U CN203061187U CN 201320024553 CN201320024553U CN203061187U CN 203061187 U CN203061187 U CN 203061187U CN 201320024553 CN201320024553 CN 201320024553 CN 201320024553 U CN201320024553 U CN 201320024553U CN 203061187 U CN203061187 U CN 203061187U
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- dividing plate
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Abstract
The utility model discloses a vertical type stirring-free polycondensation reactor in the field of polyester production equipment. The vertical type stirring-free polycondensation reactor comprises a tower body, the tower body is provided with a feeding port and a gas-phase outlet, and the bottom of the tower body is provided with a discharging port; the tower body is respectively provided with a pre-polycondensation section and a tackifying section from top to bottom, the pre-polycondensation section comprises at least two layers of pre-polycondensation units, each pre-polycondensation unit comprises a partition plate horizontally arranged in the tower body, a heating coil pipe is arranged above the partition plate, and the partition plate of the pre-polycondensation unit at the upper layer is provided with a vent pipe and a downcomer both inserted to be above the partition plate of the pre-polycondensation unit at the lower layer; the feeding port is arranged above the partition plate of the pre-polycondensation at the top layer; the partition plate at the lowest layer is provided with an overflow pipe communicated with the upper and lower spaces of the partition plate at the lowest layer; and the gas-phase outlet is located on the side face of the tower body between the partition plate at the lowest layer and the tackifying section. The gas generated in reaction can fully stir the reaction materials, therefore, the vertical type stirring-free polycondensation reactor is high in thermal efficiency and low in energy consumption. The vertical type stirring-free polycondensation reactor can be used in production of polymers, such as PET (Polyester) and PBT (polybutylece terephthalate).
Description
Technical field
The utility model relates to a kind of reaction unit, particularly a kind of reaction unit for production of polyester.
Background technology
In the prior art, a kind of reaction unit for production of polyester is arranged, its polymerization process is divided into a plurality of steps and carries out, being at least two reactors just can finish, wherein there is the structure of a reactor to mainly include the housing of horizontal setting and the rotor of the interior setting of housing, described rotor comprises preceding shaft and the back shaft that is positioned on the same horizontal axis, preceding shaft stretches out outside the housing and driving mechanism is in transmission connection, back shaft is rotatably supported in the housing, shaft links to each other with preceding card before described, back shaft links to each other with the back card, preceding card parallels setting with the back card, periphery between the two links to each other through some gussets, is welded to connect through the triangle diagonal brace between the gusset, forms the mouse cage shape.During work, housing links to each other with vacuum suction device, and when rotor rotated, rotor can stir the reaction mass that enters in the housing, promotes that the byproduct of reaction evaporation in the material is also constantly taken away by vacuum suction device.Its weak point is: the material effect for the polymerization initial stage is bad, because the initial stage material viscosity is low, good fluidity reacts restive, and the vacuum in the equipment cannot form vacuum gradient according to course of reaction simultaneously.During this device busy, need power set to drive rotor and rotate, its energy consumption is higher.
A kind of polycondensation reaction tower, application number: 200420109531.6 applyings date: 2004-11-23, CN2741645Y, open day is on November 23rd, 2005, this device comprises the double Shell of being made up of inner housing and shell body, it is chuck between inner housing and the shell body, shell body is provided with the heating agent that is communicated with chuck and advances, outlet, double Shell is provided with the steam that is communicated with the inner housing inner chamber and extracts mouth out, charging aperture and discharging opening, described double Shell uprightly arranges, charging aperture is arranged at double Shell top and stretches in the inner housing, discharging opening is arranged at the bottom of double Shell, be provided with some horizontally disposed tower trays between charging aperture and the discharging opening, described tower tray comprises housing, is provided with some leakage material passages in the housing.Material is one-way flow in this device, and no back-mixing and flow blind angle do not need exterior power to drive material yet and stir.Its weak point is: in this device, material successively descends, and the piling height of material on each layer tower tray is difficult to control.In addition, by the mode of chuck heating, its efficiency of heating surface is relatively low, and heat can not in time pass to material, causes reaction speed relatively slow, and reaction efficiency is low.
The utility model content
The purpose of this utility model provides a kind of vertical nothing and stirs polycondensation reactor, and the polymerization process of production of polyester can be finished by a reactor, has substituted original a plurality of reactor, owing to adopt no stirring structure, its energy consumption is low, the reaction efficiency height simultaneously.
The purpose of this utility model is achieved in that a kind of vertical nothing stirs polycondensation reactor, the tower body that comprises vertical setting, tower body is provided with charging aperture and gaseous phase outlet, the tower body bottom also is provided with discharging opening, tower body is respectively equipped with precondensation section and tackify section from top to bottom, described precondensation section comprises two-layer at least precondensation unit, described precondensation unit comprises the dividing plate that is horizontally set in the tower body, the dividing plate top is provided with heat(ing) coil, and the dividing plate of last layer precondensation unit is provided with breather pipe and downspout is inserted into down above the dividing plate of one deck precondensation unit; Described charging aperture is arranged on the dividing plate top of last layer precondensation unit; The basecoat dividing plate is provided with the upper and lower space that overflow pipe is connected the basecoat dividing plate; The upper orifice position of described breather pipe is higher than the upper orifice position of this layer downspout, and the lower nozzle position of breather pipe is lower than the upper orifice position of one deck downspout down; The upper orifice position of described overflow pipe is higher than the lower nozzle position of basecoat breather pipe; Described gaseous phase outlet be arranged between the below of basecoat dividing plate and the tackify section top the tower body side.
During this device work, reaction mass enters in the tower body from charging aperture, be introduced on the dividing plate of the superiors precondensation unit, after the heat(ing) coil heat exchange of this layer, enter down from the downspout overflow on the dividing plate of one deck precondensation unit, after carrying out heat exchange with this layer heat(ing) coil, downspout from this layer descends step by step again, flow to the tackify section downwards from the corresponding overflow pipe in orlop precondensation unit at last, after the tackify section, material fully reacts, and viscosity increases, and the material after the polycondensation reaction is finally from the discharging opening separating device.In the said process, constantly device is vacuumized by gaseous phase outlet, above the superiors precondensation unit, the gas that is evaporated enters down in one deck precondensation unit from breather pipe with the increase meeting of pressure, enter under the liquid level of gas in described down one deck precondensation unit, it is up again to form bubble, so successively descends, enter the dividing plate below of basecoat precondensation unit at last from overflow pipe, and then discharge from gaseous phase outlet.Because bubble is formed under the liquid level, when bubble is up, can fully stir reaction mass.Compared with prior art, vaporized gas was regulated height of materials on the dividing plate voluntarily when the utility model reacted by reaction mass, avoided solid accumulation too much, and simultaneously, material can fully contact the absorption heat with heat(ing) coil, its thermal efficiency height.The setting of breather pipe can be avoided owing to the too high bumping that causes of vacuum, band material serious situation take place in the inner vacuum gradient that forms of tower body.Because need not to adopt power to stir in the whole device, its energy consumption is low.This device can be used in the production of multiple polyester materials such as PET, PBT.
As further improvement of the utility model, on the dividing plate of described precondensation unit deflector is set, deflector is fixed on the dividing plate twist, and the discharging position of the supplied materials position of last layer precondensation unit and this layer precondensation unit lays respectively at spiral start position and final position.The setting of deflector makes material flow twist, reduces flow dead on the one hand, has increased the heat exchange chance between material and the heat(ing) coil on the other hand, promotes the carrying out of polymerisation.
It further improves and is that the lower nozzle aperture position of described breather pipe is positioned at breather pipe side and orientating reaction Flow of Goods and Materials direction.When gas flowed from the downward one deck precondensation of breather pipe unit, air-flow can promote material movement, plays good stirring action simultaneously.
For guaranteeing efficiency of heating surface height, described heat(ing) coil is the spirality setting corresponding with deflector, leaves the gap between heat(ing) coil and the deflector.Heat(ing) coil can be followed the material heating, has improved the efficiency of heating surface.
For guaranteeing that material can evenly enter the tackify section, be provided with the uniform dish of material below the described overflow pipe and above being positioned at gaseous phase outlet, the uniform dish of material is provided with some through holes, described through hole comprises air-flow through hole and liquid opening, the aperture of air-flow through hole is greater than the aperture of liquid opening, and the edge suitable for reading of air-flow through hole is higher than the edge suitable for reading of liquid opening.During work, liquid material stand cloth evenly flows out from the liquid opening on the uniform dish of material again, can form bigger additional issue face, promotes the byproduct of reaction evaporation, and simultaneously, material can disperse to enter in the tackify section; The gas of precondensation section can enter the uniform dish of material below from the air-flow through hole.
Material can not extracted out for the assurance gaseous phase outlet, the inboard is provided with baffle plate in the corresponding tower body of gaseous phase outlet, and described baffle plate top is connected with the tower body inner wall sealing, and the baffle plate downside leaves gas channel.
As further improvement of the utility model, described tackify section comprises one deck tackify unit at least, the tackify unit comprises upper perforated plate and the lower perforated plate that is horizontally set in the tower body, be sealedly connected with some tubulations on upper perforated plate and the lower perforated plate, tower body is provided with heat medium outlet and the heat medium entrance of connecting space between upper perforated plate and the lower perforated plate.Utilize heat medium can the material that pass tubulation further be heated, make gas and part water evaporates in the material, material viscosity further increases.
It further improves and is, the described tubulation overflow tremie pipe that is connected with suitable for reading, and overflow tremie pipe top is provided with umbrella crown, and the umbrella crown downside is connected with the retaining pipe that is nested with outside the overflow tremie pipe.This scheme makes material flow down along the inwall of tubulation, and still can stay gas channel in the tubulation center, has made things convenient for gas finally to be taken away from gaseous phase outlet.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is that the B-B of Fig. 1 is to view.
Fig. 4 is the partial structurtes schematic diagram on tubulation top.
Fig. 5 is the uniform dish structural representation of material.
Fig. 6 is the partial enlarged drawing of C among Fig. 5.
Wherein, 1 discharging opening, 2 lower perforated plates, 3 heat medium entrances, 4 tubulations, 5 upper perforated plates, 6 retaining pipes, 7 umbrella crowns, the uniform dish of 8 materials, 9 overflow pipes, 10 dividing plates, 11 breather pipe lower nozzles, 12 breather pipes, 13 charging apertures, 14 tower bodies, 15 heat(ing) coils, 16 downspouts, 17 baffle plates, 18 gaseous phase outlets, the outlet of 19 heat mediums, 20 deflectors, 21 overflow tremie pipes, 22 air-flow through holes, 23 liquid openings.
The specific embodiment
As shown in the figure, for a kind of vertical nothing stirs polycondensation reactor, the tower body 14 that comprises vertical setting, tower body 14 is provided with charging aperture 13 and gaseous phase outlet 18, tower body 14 bottoms also are provided with discharging opening 1, tower body 14 is respectively equipped with precondensation section and tackify section from top to bottom, described precondensation section comprises two-layer at least precondensation unit, the precondensation unit comprises the dividing plate 10 that is horizontally set in the tower body 14, dividing plate 10 tops are provided with heat(ing) coil 15, and the dividing plate 10 of last layer precondensation unit is provided with dividing plate 10 tops that breather pipe 12 and downspout 16 are inserted into down one deck precondensation unit; Described charging aperture 13 is arranged on dividing plate 10 tops of last layer precondensation unit; Basecoat dividing plate 10 is provided with the upper and lower space that overflow pipe 9 is connected basecoat dividing plate 10; The upper orifice position of described breather pipe 12 is higher than the upper orifice position of this layer downspout 16, and the lower nozzle position of breather pipe 12 is lower than the upper orifice position of one deck downspout 16 down; The upper orifice position of described overflow pipe 9 is higher than the lower nozzle position of basecoat breather pipe 12; Gaseous phase outlet 18 be arranged between the below of basecoat dividing plate 10 and the tackify section top tower body 14 sides, the inboard is provided with baffle plate 17 in the gaseous phase outlet 18 corresponding tower bodies 14, described baffle plate 17 tops are connected with tower body 14 inner wall sealings, and baffle plate 17 downsides leave gas channel.
On the dividing plate 10 of precondensation unit deflector 20 is set, deflector 20 is fixed on the dividing plate 10 twist, and the discharging position of the supplied materials position of last layer precondensation unit and this layer precondensation unit lays respectively at spiral start position and final position.Heat(ing) coil 15 is the spirality setting corresponding with deflector 20, leaves the gap between heat(ing) coil 15 and the deflector 20.The lower nozzle aperture position of breather pipe 12 is positioned at breather pipe 12 sides and orientating reaction Flow of Goods and Materials direction.
The tackify section is made up of two-layer tackify unit, the tackify unit comprises upper perforated plate 5 and the lower perforated plate 2 that is horizontally set in the tower body 14, be sealedly connected with some tubulations 4 on upper perforated plate 5 and the lower perforated plate 2, tower body 14 is provided with heat medium outlet 19 and the heat medium entrance 3 of connecting space between upper perforated plate 5 and the lower perforated plate 2.The tubulation 4 overflow tremie pipes 21 that are connected with suitable for reading, overflow tremie pipe 21 tops are provided with umbrella crown 7, and umbrella crown 7 downsides are connected with the retaining pipe 6 that is nested with outside overflow tremie pipe 21.
When this device carries out production of polyester, mixed liquid reaction material enters from charging aperture 13, at first material enters dividing plate 10 tops of the superiors precondensation unit, after heat(ing) coil 15 heat exchanges of this layer, material is walked around deflector 20 and is entered down on the dividing plate 10 of one deck precondensation unit from downspout 16 overflows, after carrying out heat exchange with the heat(ing) coil 15 of this time one deck precondensation unit again, flow to downwards on the uniform dish 8 of material from overflow pipe 9 then, material passes liquid opening 23 and evenly disperses to enter the tackify section downwards; Stop down that at umbrella crown 7 reaction mass is walked around retaining pipe 6 from the gravity flow of tubulation 4 inwalls downwards, is formed centrally the air-flow data feedback channel in tubulation 4; Material flows automatically when downward, carries out heat exchange again with heat medium.Behind two-layer tackify unit, material leaves from discharging opening 1.In the said process, the gas that polycondensation reaction produces can be evacuated device from gaseous phase outlet 18 and take away, particularly, the gas that produces in the last layer precondensation unit is under the internal pressure effect, be advanced into for 12 times from breather pipe under the liquid level of next layer precondensation unit, material is stirred, and the setting of breather pipe lower nozzle 11 directions can be carried out Flow of Goods and Materials; After gas descends step by step, leave from gaseous phase outlet 18 through overflow pipe 9, gas channel; The air-flow data feedback channel that the gas that evaporates in the tackify section can be formed centrally from tubulation 4 is up, is pooled to gaseous phase outlet 18 separating devices at last.Material absorbs heat in descending process, and polycondensation reaction continues to carry out, and it is big that the viscosity of material also becomes gradually, finishes reacted material and finally leave this device from discharging opening 1.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein; the precondensation section can comprise two-layer at least precondensation unit; the tackify unit also can be one or more layers, and these replacements and distortion are all in protection domain of the present utility model.
Claims (8)
1. a vertical nothing stirs polycondensation reactor, the tower body that comprises vertical setting, tower body is provided with charging aperture and gaseous phase outlet, the tower body bottom also is provided with discharging opening, tower body is respectively equipped with precondensation section and tackify section from top to bottom, it is characterized in that: described precondensation section comprises two-layer at least precondensation unit, described precondensation unit comprises the dividing plate that is horizontally set in the tower body, the dividing plate top is provided with heat(ing) coil, and the dividing plate of last layer precondensation unit is provided with breather pipe and downspout is inserted into down above the dividing plate of one deck precondensation unit; Described charging aperture is arranged on the dividing plate top of last layer precondensation unit; The basecoat dividing plate is provided with the upper and lower space that overflow pipe is connected the basecoat dividing plate; The upper orifice position of described breather pipe is higher than the upper orifice position of this layer downspout, and the lower nozzle position of breather pipe is lower than the upper orifice position of one deck downspout down; The upper orifice position of described overflow pipe is higher than the lower nozzle position of basecoat breather pipe; Described gaseous phase outlet be arranged between the below of basecoat dividing plate and the tackify section top the tower body side.
2. vertical nothing according to claim 1 stirs polycondensation reactor, it is characterized in that: on the dividing plate of described precondensation unit deflector is set, deflector is fixed on the dividing plate twist, and the discharging position of the supplied materials position of last layer precondensation unit and this layer precondensation unit lays respectively at spiral start position and final position.
3. vertical nothing according to claim 2 stirs polycondensation reactor, and it is characterized in that: described heat(ing) coil is the spirality setting corresponding with deflector, leaves the gap between heat(ing) coil and the deflector.
4. vertical nothing according to claim 2 stirs polycondensation reactor, and it is characterized in that: the lower nozzle aperture position of described breather pipe is positioned at breather pipe side and orientating reaction Flow of Goods and Materials direction.
5. stir polycondensation reactor according to any described vertical nothing of claim 1-4, it is characterized in that: be provided with the uniform dish of material below the described overflow pipe and above being positioned at gaseous phase outlet, the uniform dish of material is provided with some through holes, described through hole comprises air-flow through hole and liquid opening, the aperture of air-flow through hole is greater than the aperture of liquid opening, and the edge suitable for reading of air-flow through hole is higher than the edge suitable for reading of liquid opening.
6. stir polycondensation reactor according to any described vertical nothing of claim 1-4, it is characterized in that: the inboard is provided with baffle plate in the corresponding tower body of gaseous phase outlet, and described baffle plate top is connected with the tower body inner wall sealing, and the baffle plate downside leaves gas channel.
7. stir polycondensation reactor according to claim according to any described vertical nothing of claim 1-4, it is characterized in that: described tackify section comprises one deck tackify unit at least, the tackify unit comprises upper perforated plate and the lower perforated plate that is horizontally set in the tower body, be sealedly connected with some tubulations on upper perforated plate and the lower perforated plate, tower body is provided with heat medium outlet and the heat medium entrance of connecting space between upper perforated plate and the lower perforated plate.
8. stir polycondensation reactor according to claim vertical nothing according to claim 7, it is characterized in that: the described tubulation overflow tremie pipe that is connected with suitable for reading, overflow tremie pipe top is provided with umbrella crown, and the umbrella crown downside is connected with the retaining pipe that is nested with outside the overflow tremie pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024553 CN203061187U (en) | 2013-01-17 | 2013-01-17 | Vertical type stirring-free polycondensation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024553 CN203061187U (en) | 2013-01-17 | 2013-01-17 | Vertical type stirring-free polycondensation reactor |
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| Publication Number | Publication Date |
|---|---|
| CN203061187U true CN203061187U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320024553 Withdrawn - After Issue CN203061187U (en) | 2013-01-17 | 2013-01-17 | Vertical type stirring-free polycondensation reactor |
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| CN (1) | CN203061187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041763A (en) * | 2013-01-17 | 2013-04-17 | 扬州惠通化工技术有限公司 | Vertical non-stirring polycondensation reactor |
| CN105778074A (en) * | 2016-04-22 | 2016-07-20 | 扬州惠通化工技术有限公司 | Esterification and polymerization reaction apparatus |
-
2013
- 2013-01-17 CN CN 201320024553 patent/CN203061187U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041763A (en) * | 2013-01-17 | 2013-04-17 | 扬州惠通化工技术有限公司 | Vertical non-stirring polycondensation reactor |
| CN103041763B (en) * | 2013-01-17 | 2015-12-09 | 扬州惠通化工技术有限公司 | Vertical without stirring polycondensation reactor |
| CN105778074A (en) * | 2016-04-22 | 2016-07-20 | 扬州惠通化工技术有限公司 | Esterification and polymerization reaction apparatus |
| CN105778074B (en) * | 2016-04-22 | 2017-09-19 | 扬州惠通化工科技股份有限公司 | A kind of fat polymerization reaction unit |
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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: 20130717 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |