CN205152134U - Jar is discharged to spheripol polypropylene process systems's low pressure - Google Patents
Jar is discharged to spheripol polypropylene process systems's low pressure Download PDFInfo
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- CN205152134U CN205152134U CN201520789446.7U CN201520789446U CN205152134U CN 205152134 U CN205152134 U CN 205152134U CN 201520789446 U CN201520789446 U CN 201520789446U CN 205152134 U CN205152134 U CN 205152134U
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- pressure drain
- jar
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Abstract
The utility model provides a jar is discharged to spheripol polypropylene process systems's low pressure, belongs to polypropylene production facility field. Including a jar body (3), be provided with many in the bottom of the jar body (3) and pass jar fixed steam intake pipe (5) of the body (3), its characterized in that: be provided with the steam unit of releasing in the jar body (3), steam release the unit simultaneously and steam intake pipe (5) UNICOM, outside steam passes through steam intake pipe (5) and steam and releases the unit and get into jar personally experience sth. Part of the body (3). The utility model discloses a jar is discharged to spheripol polypropylene process systems's low pressure through setting up the steam unit of releasing in low pressure in discharging jar, is guaranteeing under the prerequisite of decatize in -process polypropylene powder and the smooth separation of propylene monomer, falls into the polypropylene powder of low pressure in discharging jar and can not stop up the steam dump mouth, guaranteed production go on smoothly with blowing safety.
Description
Technical field
A low pressure drain tank for Spheripol polymarization method for prodcing polyacrylates system, belongs to polypropylene production equipment field.
Background technology
Spheripol technique is succeeded in developing by Basel (Basell) polyolefins company the earliest, is the most successful, the PP Production Technology that is most widely used up to now.In the production line of Spheripol technique, be provided with low pressure drain tank, when production line stops because of fault or other reasons, need the polypropylene powder in production unit and pipeline to be disposed in low pressure drain tank to collect.Owing to being disposed to polypropylene powder in low pressure drain tank generally doped with relatively large propylene monomer, therefore in the prior art, steam decatize system is provided with in low pressure drain tank, by passing into steam in low pressure drain tank, propylene monomer is carried out evaporation to discharge, realize being separated of propylene monomer and polypropylene powder.
As shown in Figure 3, in the low pressure drain tank of prior art Spheripol polymarization method for prodcing polyacrylates, bottom tank body 3, be provided with opening up steam inlet duct 5, steam to be entered in low pressure drain tank via four pipelines by steam inlet duct 5 and propylene monomer is gasified, and is separated with polypropylene.In the process of discharge of materials to low pressure drain tank, along with the continuous deposition of polypropylene powder, the steam inlet duct 5 of opening upwards is very easily blocked, causes steam can not enter in low pressure drain tank, cannot realize being separated completely of polypropylene powder and propylene monomer.To such an extent as to when low pressure drain pot bottom carries out blowing, propylene monomer is easily mixed in polypropylene powder China and foreign countries row, easily causes propylene Fire explosion accident, has a strong impact on the safety in production of device.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, there is provided a kind of by arranging steam vent unit in low pressure drain tank, ensure that under the prerequisite that in steaming procedure, polypropylene powder and propylene monomer are separated smoothly, fall in low pressure drain tank polypropylene powder steam outlet can not be blocked, what ensure that steaming procedure carries out the low pressure drain tank with the Spheripol polymarization method for prodcing polyacrylates system of blowing safety smoothly.
The utility model solves the technical scheme that its technical problem adopts: the low pressure drain tank of this Spheripol polymarization method for prodcing polyacrylates system, comprise tank body, many the steam inlet ducts fixed through tank body are provided with in the bottom of tank body, it is characterized in that: in tank body, be provided with steam vent unit, with steam inlet duct UNICOM while of steam vent unit, external steam enters tank body by steam inlet duct and steam vent unit.
Preferably, described steam vent unit comprises and is arranged on steam loop in tank body and many steam outleting pipes, and steam loop is erected at steam inlet duct top and UNICOM with it; Steam outleting pipe to be arranged on steam loop and UNICOM with it simultaneously.
Preferably, described steam loop is horizontally set in tank body.
Preferably, all downward opening bottom being fixed on steam loop of described steam outleting pipe.
Preferably, described steam loop is circular polygonal ring shape.
Preferably, be also provided with the discharge of materials pipeline for discharges material in described tank base, discharge of materials pipeline is provided with baiting valve.
Preferably, the chuck that can pass into steam is had in described tank body outer setting.
Compared with prior art, the beneficial effect that the utility model has is:
1, the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system of the present utility model, by arranging steam vent unit in tank body, ensure that under the prerequisite that in steaming procedure, polypropylene powder and propylene monomer are separated smoothly, steam outlet can not block by the polypropylene powder fallen in low pressure drain tank, ensure that steaming procedure carries out smoothly.
2, low pressure drain tank is provided with chuck, and steam air supply unit simultaneously can input steam in and its chuck inner to low pressure drain tank, and therefore the inside of low pressure drain tank and sidewall all can ensure higher temperature, make process vapor process more evenly guarantee decatizing effect.
3, by arranging nitrogen air supply unit, when temperature is lower, can, by feeding high temperature nitrogen in nitrogen air supply unit in opposite directions low pressure drain tank, high temperature nitrogen be utilized to carry out nitrogen decatize to low pressure drain tank inside, because this reducing the condensation number of water vapour in tank.When utilizing the steam of steam air supply unit to carry out decatize, also can open nitrogen air supply unit simultaneously and pass into nitrogen in low pressure drain tank, and control steam and nitrogen charging by a certain percentage, now improve flow and the flow velocity of the gas in low pressure drain tank, be conducive to the flash separation of propylene.
4, in decatize system transfer line, be also provided with the discharge of materials pipeline for discharges material, be conducive to the discharge of material in tank.
Accompanying drawing explanation
Fig. 1 is the low pressure drain tank front view of Spheripol polymarization method for prodcing polyacrylates system.
Fig. 2 is the low pressure drain tank vertical view of Spheripol polymarization method for prodcing polyacrylates system.
Fig. 3 is the low pressure drain tank front view of prior art Spheripol polymarization method for prodcing polyacrylates system.
Wherein: 1, steam outleting pipe 2, steam loop 3, tank body 4, chuck 5, steam inlet duct.
Embodiment
Fig. 1 ~ 2 are most preferred embodiments of the present utility model, are described further below in conjunction with accompanying drawing 1 ~ 2 pair of the utility model.
As shown in Figure 1 and 2, the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system, comprises tank body 3 and is arranged on the chuck 4 of tank body 3 outside.Bottom tank body 3, be provided with many steam inlet ducts 5, steam inlet duct 5 passes vertically through bottom tank body 3 and arranges.In tank body 3, steam inlet duct 5 is connected with steam vent unit simultaneously.
Steam supply air line is had in tank body 3 outer setting, steam supply air line one end is connected with steam source, the other end is connected with many steam inlet ducts 5 simultaneously, steam in steam supply air line enters tank body 3 inside via steam inlet duct 5 and enters in low pressure drain tank by steam vent unit, decatize is carried out to the polypropylene powder in low pressure drain tank, realizes the separation of polypropylene powder kind propylene monomer.Steam supply air line is connected with chuck 4 by pipeline (not shown in FIG.) simultaneously, steam supply air line can input steam simultaneously in chuck 4, therefore actual carry out decatize time, the inside of low pressure drain tank and sidewall all can ensure higher temperature, make steaming procedure more even.Also be provided with discharge of materials pipeline (not shown in FIG.) in the bottom of low pressure drain tank, in discharge of materials pipeline, baiting valve be installed, the polypropylene powder in low pressure drain tank can be discharged by discharge of materials pipeline.
The steam vent unit be arranged in low pressure drain tank comprises steam loop 2 and some steam outleting pipes 1.Steam loop 2, for closed circular, is horizontally set in low pressure drain tank, after above-mentioned many steam inlet ducts 5 enter low pressure drain tank inside, is connected to the bottom of steam loop 2 and UNICOM inner with steam loop 2 simultaneously, is held up by steam loop 2 simultaneously.Some steam outleting pipes 1 be all fixed on steam loop 2 bottom and simultaneously with UNICOM in steam loop 2, all steam outleting pipes 1 opening down.First the steam entered from steam inlet duct 5 or nitrogen enter in steam loop 2 entering after in low pressure drain tank, and enter in low pressure drain tank by steam outleting pipe 1 output being arranged on steam loop 2 bottom, because steam outleting pipe 1 is opening down, therefore complete after under the polypropylene powder body drop of decatize and steam outleting pipe 1 can not be blocked, ensure that carrying out smoothly of steaming procedure.
In actual field, when temperature is lower, nitrogen can be fed in low pressure drain tank by nitrogen supply air line, nitrogen is utilized to carry out nitrogen decatize to low pressure drain tank inside, because this reducing the condensation number of water vapour in tank, still pass into high-temperature steam in the chuck 4 of now low pressure drain tank, the sidewall of low pressure drain tank is heated.When utilizing high-temperature steam to carry out decatize, also can open nitrogen supply air line simultaneously and passing into nitrogen in low pressure drain tank, now improve flow and the flow velocity of the gas in low pressure drain tank, be conducive to the flash separation of propylene.
The arbitrary shape that steam loop 2 can adopt closed loop to arrange realizes, as circular, oval ring-type, rectangular ring and other polygonal ring shape.
Specific works process and principle of work as follows:
When needing to carry out decatize separation to the polypropylene powder in low pressure drain tank, connect steam source, the steam in steam source enters in many steam inlet ducts 5 through steam supply air line, and enters in the tank body 3 of low pressure drain tank via steam inlet duct 5.Steam enters after in the tank body 3 of low pressure drain tank through steam inlet duct 5, first enter in steam loop 2, then be disposed in the tank body 3 of low pressure drain tank by the steam outleting pipe 1 be arranged on below steam loop 2, utilize high-temperature steam the propylene monomer be entrained in polypropylene powder to be carried out evaporation to discharge, realize being separated of propylene monomer and polypropylene powder.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (7)
1. the low pressure drain tank of a Spheripol polymarization method for prodcing polyacrylates system, comprise tank body (3), many the steam inlet ducts (5) fixed through tank body (3) are provided with in the bottom of tank body (3), it is characterized in that: in tank body (3), be provided with steam vent unit, with steam inlet duct (5) UNICOM the while of steam vent unit, external steam enters tank body (3) by steam inlet duct (5) and steam vent unit.
2. the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system according to claim 1, it is characterized in that: described steam vent unit comprises and is arranged on steam loop (2) in tank body (3) and many steam outleting pipes (1), steam loop (2) is erected at steam inlet duct (5) top and UNICOM with it; Steam outleting pipe (1) is arranged on steam loop (2) simultaneously and goes up also UNICOM with it.
3. the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system according to claim 2, is characterized in that: described steam loop (2) is horizontally set in tank body (3).
4. the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system according to claim 2, is characterized in that: the described all downward opening bottom being fixed on steam loop (2) of steam outleting pipe (1).
5. the low pressure drain tank of Spheripol polymarization method for prodcing polyacrylates system according to claim 2, is characterized in that: described steam loop (2) is circular polygonal ring shape.
6. the low pressure drain tank of the Spheripol polymarization method for prodcing polyacrylates system according to any one of claim 1 ~ 3, it is characterized in that: be also provided with the discharge of materials pipeline for discharges material in described tank body (3) bottom, discharge of materials pipeline is provided with baiting valve.
7. the low pressure drain tank of the Spheripol polymarization method for prodcing polyacrylates system according to any one of claim 1 ~ 3, is characterized in that: have the chuck (4) that can pass into steam in described tank body (3) outer setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789446.7U CN205152134U (en) | 2015-10-14 | 2015-10-14 | Jar is discharged to spheripol polypropylene process systems's low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789446.7U CN205152134U (en) | 2015-10-14 | 2015-10-14 | Jar is discharged to spheripol polypropylene process systems's low pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205152134U true CN205152134U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789446.7U Active CN205152134U (en) | 2015-10-14 | 2015-10-14 | Jar is discharged to spheripol polypropylene process systems's low pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205152134U (en) |
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2015
- 2015-10-14 CN CN201520789446.7U patent/CN205152134U/en active Active
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