CN206214982U - A kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system - Google Patents
A kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system Download PDFInfo
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- CN206214982U CN206214982U CN201621153809.9U CN201621153809U CN206214982U CN 206214982 U CN206214982 U CN 206214982U CN 201621153809 U CN201621153809 U CN 201621153809U CN 206214982 U CN206214982 U CN 206214982U
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Abstract
The utility model is related to a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system, the system includes adsorption tower, jet chimney, flowline, admission line, discharge duct, feeding tube, nitrogen pipeline, air-introduced machine, adsorption tower tail gas concentration detector and flowline concentration detector, described adsorption tower top assembling jet chimney, nitrogen pipeline, discharge duct and feeding tube, fit beneath admission line and flowline, described air-introduced machine is assemblied in the input of admission line, described adsorption tower tail gas concentration detector is assemblied in the output end of discharge duct, described flowline concentration detector is assemblied in the output end of flowline.Compared with prior art, the utility model can realize producing the qualified discharge of tail gas and save the purpose of production cost.
Description
Technical field
The utility model is related to the treatment of the tail gas of chemical enterprise emission and the recycle device of beneficiating ingredient, especially
It is related to a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system
Background technology
Solvent naphtha is the oil product through cut and refined hydrocarbon mixture, easily burns and explodes.Current
Ultra-high molecular weight polyethylene polymerization production process in, it is necessary to largely use solvent naphtha, simultaneously because solvent naphtha belongs to volatile
Property organic matter, therefore ultra-high molecular weight polyethylene polymerization discharge tail gas (waste gas) be required for carrying out special treatment,
Such as install torch assisted combustion device additional, volatile organic matter is converted into carbon dioxide and vapor by being chemically reacted, disappear
Except the Organic Pollution to air.
In industrialization ultra-high molecular weight polyethylene polymerization production process at present, stripping drying process can be discharged largely containing low
The tail gas of concentration solvent oil, if this tail gas for containing low concentration solvent naphtha can not be carried out into recycling, but directly burns
If treatment, then ultra-high molecular weight polyethylene production cost will rise, and increase the carbon emission of enterprise, can bring a series of environmental protection
Problem.
A kind of environmental protecting device (the Chinese Patent Application No. of solvent recovery improvement in tail gas is disclosed in the prior art：
201110180589.4), its contain robot control system(RCS), gas inlet, blower fan, adsorption tower A, adsorption tower B, steam inlet, desorb it is cold
Condenser, chromatography tank, clean gas outlet, separately contain corresponding pipeline and corresponding valve.Although the environmental protecting device also has reclaiming
The effect of solvent and environmental protection, but the environmental protecting device remains unchanged and has the following disadvantages：1st, the adsorption tower is conventional absorbtion tower,
Sorbing material short life, running resistance are big, it is difficult to update recovery, and stability is poor；2nd, detection of the detector to solvent strength is lacked,
The solvent strength of the tail gas of discharge whard to control；3rd, feeding tube is lacked, it is impossible to which the sorbing material in adsorption tower is carried out in time
Addition, it is difficult to realize the continuous recovery to solvent naphtha；4th, adsorption tower is not cooled down using inert gas.
The content of the invention
The purpose of this utility model is exactly to provide a kind of supra polymer for the defect for overcoming above-mentioned prior art to exist
Weight northylen polymerization tail gas recycle absorption system, the qualified discharge for realizing production tail gas and the mesh for saving production cost
's.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system, it is characterised in that：The system includes
Adsorption tower, jet chimney, flowline, admission line, discharge duct, feeding tube, nitrogen pipeline, air-introduced machine, adsorption tower tail
Gas concentration detector and flowline concentration detector, described adsorption tower top assembling jet chimney, nitrogen pipeline, exhaust
Pipeline and feeding tube, fit beneath admission line and flowline, described air-introduced machine are assemblied in the input of admission line,
Described adsorption tower tail gas concentration detector is assemblied in the output end of discharge duct, described flowline concentration detector assembling
In the output end of flowline.
Described adsorption tower includes cylinder, cylindrical sleeves, perforated baffle, metal filter screen and solid adsorption material, its
In, cylinder interior places cylindrical sleeves, and one perforated baffle of bottom port horizontal positioned, the circumferential edges of perforated baffle are fixed on
The inwall of cylinder, for the cylindrical sleeves inside support cylinder, perforated baffle top laying metal filter screen, between cylindrical sleeves
Load solid adsorption material.
Described cylinder top is provided with circular arc lid, and jet chimney, nitrogen pipeline, exhaust are assembled on the circular arc lid
Pipeline and feeding tube；The cylinder fit beneath admission line and flowline.
The quantity of described adsorption tower is at least two, and the adsorption and desorption pattern in many adsorption towers is alternately.
The quantity of the cylindrical sleeves is 3~10, and radius is 0.5m~1.0m.
The pore diameter range of the perforated baffle is 10~30 mesh.
The mesh of pore diameter range 100~300 of the metal filter screen.
The solid adsorption material is spheric granules resin, and specific surface area is 500~1000m2/g。
Preferably, the adsorption tower includes adsorption tower A and adsorption tower B, the structure and assembling pipe of two adsorption towers
The connected mode of road and/or auxiliary equipment is identical, can alternately to the adsorption and desorption treatment of solvent naphtha be conducive to
The continuous recovery to solvent naphtha is realized, and does not influence industrialized production, organic efficiency is high.
Compared with prior art, the utility model has advantages below：
1st, the low concentration solvent naphtha produced in industrialization ultra-high molecular weight polyethylene polymerization production process is carried out reclaiming profit
With the qualified discharge and the purpose for saving production cost of realization production tail gas.
2nd, the solid adsorption material for being used has good physical and chemical stability and a heat endurance, and its surface is high
Hydrophobicity and spherical in shape, therefore solid adsorption material long service life, system operation resistance are small.
The regular replenishment of the feeding tube easy solid sorbing material that the 3rd, adsorption tower is matched somebody with somebody.
4th, the adsorption and desorption of solvent naphtha in two adsorption towers alternately, it is possible to achieve the continuous recovery to solvent naphtha,
And industrialized production is not influenceed, organic efficiency is high.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the internal structure schematic diagram of adsorption tower；
In accompanying drawing：1- feeding tubes, 2- discharge ducts, 3- jet chimneys, 4- nitrogen pipelines, 5- flowlines, 6- air inlets
Pipeline, 7- air-introduced machines, 8- adsorption towers A, 9- adsorption tower B, 10- adsorption tower tail gas concentration detector, 11- flowline Concentration Testings
Instrument, 12- cylindrical sleeves, 13- solid adsorption materials.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, given detailed implementation method and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
Embodiment 1：
As shown in Fig. 2 a kind of ultra-high molecular weight polyethylene polymerization uses tail gas recycle absorption tower, mainly including cylinder,
Cylindrical sleeves 12, perforated baffle, metal filter screen and solid adsorption material 13, wherein, cylinder interior is provided with cylindrical sleeves 12,
The quantity of cylindrical sleeves 12 is 3 in same cylinder, and radius is 0.5m~1.0m.Bottom of cylinder port levels place one
Perforated baffle, the aperture of the perforated baffle is 10 mesh, and its circumferential edges is fixed on the inwall of cylinder, inside support cylinder
Cylindrical sleeves 12, are also covered with metal filter screen, the mesh of pore diameter range 100~150 of the metal filter screen above perforated baffle in addition.
Solid adsorption material, specifically spheric granules resin are loaded between cylindrical sleeves, specific surface area is 500m2/g.It is stamped on cylinder
Circular arc lid, it is fixed with bolt and cylinder top around it, assembled on the circular arc lid jet chimney 3, nitrogen pipeline 4,
Discharge duct 2 and feeding tube 1, bottom of cylinder assembling admission line 6 and flowline 5.
As described in Figure 1, the adsorption tower with said structure is used in solvent naphtha adsorption system, the system includes structure phase
Jet chimney 3, flowline 5, air inlet pipe are additionally provided with same adsorption tower A8 and adsorption tower B9, the circular arc lid of two adsorption towers
Road 6, discharge duct 2, feeding tube 1, nitrogen pipeline 4, also including air-introduced machine 7, adsorption tower tail gas concentration detector 10 and go out
Oil-piping concentration detector 11, wherein, air-introduced machine 7 is assemblied in the input of admission line 6, adsorption tower tail gas concentration detector 10
The output end of discharge duct 2 is assemblied in, flowline concentration detector 11 is assemblied in the output end of flowline 5.
Adsorption tower A8 and adsorption tower B9：Processed for the absorption to solvent naphtha in tail gas or desorption；
Jet chimney 3：Steam for being passed through from uniform temperature to adsorption tower, using its high temperature by the solvent naphtha of adsorption saturation
Desorption, obtains the oil water mixture containing solvent naphtha；
Flowline 5：For discharging oil water mixture；
Admission line 6：For tail gas to be input in adsorption tower；
Discharge duct 2：For outside the tail gas output by adsorption treatment to adsorption tower；
Nitrogen pipeline 4：For nitrogen to be input in adsorption tower, adsorption tower is purged and is down to often using nitrogen
Temperature；
Feeding tube 1：For regular replenishment solid adsorption material 13；
Air-introduced machine 7：The tail gas containing solvent naphtha for stripping vessel to be discharged sends into adsorption tower；
Adsorption tower tail gas concentration detector 10：For the solvent oil concentration of on-line checking tail gas；
Flowline concentration detector 11：For the solvent oil concentration of on-line checking oil water mixture.
Adsorption tower A8 is identical with the connected mode of the structure of adsorption tower B9 and assembling pipeline and/or auxiliary equipment,
Can alternately to the adsorption and desorption treatment of solvent naphtha, concrete technology is as follows：
As shown in figure 1, adsorption tower A8 is set as into absorption mode.Using air-introduced machine 7, by stripping vessel discharge containing solvent naphtha
Waste gas sends into adsorption tower A8, the on-line checking exhaust emissions concentration of adsorption tower tail gas concentration detector 10.When detecting that concentration exceeds
Setting value 70mg/m3Afterwards, the valve of admission line 6 of adsorption tower B9 is first opened, the valve of admission line 6 of adsorption tower A8 is then shut off
Door.Adsorption tower A8 enters desorption mode, and adsorption tower B9 enters absorption mode.Open the valve of jet chimney 3 of adsorption tower A8 and go out
The valve of oil-piping 5, the steam of uniform temperature is passed through to adsorption tower A8, is desorbed the solvent naphtha of adsorption saturation using its high temperature, is gone out
The concentration of the on-line checking oil water mixture of oil-piping concentration detector 11, after detecting that concentration is less than setting value 1%, adsorption tower
A8 stops logical steam, then opens nitrogen pipeline 4 and logical nitrogen about 20min, and normal temperature is purged and be down to using nitrogen, passes through
The solid adsorption material 13 of desorption and regeneration puts back into again, and adsorption tower A8 prepares absorption again.Taken off in adsorption tower A8
While attached, adsorption tower B9 starts to adsorb work, and it is identical with adsorption tower A8 from the cyclic process for being adsorbed onto desorption.
Embodiment 2：
The present embodiment also provides a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption tower, mainly includes
Cylinder, cylindrical sleeves 12, perforated baffle, metal filter screen and solid adsorption material 13, the absorption tower structure is with embodiment 1 one
Sample, its difference：The quantity of cylindrical sleeves 12 is 10, and radius is 0.5m~1.0m.Bottom of cylinder port levels are put
The aperture of the perforated baffle put is 30 mesh, the mesh of pore diameter range 250~300 of the metal filter screen above perforated baffle.Cylindrical sleeve
The specific surface area of the spheric granules resin loaded between cylinder is 1000m2/g.Remaining is with embodiment 1.
Embodiment 3：
The adsorption tower and the structure of solvent oil recovery system that the present embodiment is provided are identical with implementing 3, and difference is to inhale
Attached tower A8 is different with the technique of the treatment of adsorption tower B9, specific as follows：
Referring to Fig. 1, adsorption tower B9 is set as absorption mode.Using air-introduced machine 7, given up what stripping vessel was discharged containing solvent naphtha
Pneumatic transmission enters adsorption tower B9, the on-line checking exhaust emissions concentration of adsorption tower tail gas concentration detector 10.Set when detecting that concentration exceeds
Definite value 70mg/m3Afterwards, the valve of admission line 6 of adsorption tower A8 is first opened, the valve of admission line 6 of adsorption tower B9 is then shut off.
Adsorption tower B9 enters desorption mode, and adsorption tower A8 enters absorption mode.Open the valve of jet chimney 3 and flowline of adsorption tower B9
The valve of road 5, the steam of uniform temperature is passed through to adsorption tower B9, is desorbed the solvent naphtha of adsorption saturation using its high temperature, flowline
The concentration of the on-line checking oil water mixture of road concentration detector 11, after detecting that concentration is less than setting value 1%, adsorption tower B9 stops
Only lead to steam, then open nitrogen pipeline 4 and logical nitrogen about 20min, normal temperature is purged and be down to using nitrogen, by desorption
The solid adsorption material 13 of regeneration puts back into again, and adsorption tower B9 prepares absorption again.It is desorbed in adsorption tower B9
Meanwhile, adsorption tower A8 starts to adsorb work, and it is identical with adsorption tower B9 from the cyclic process for being adsorbed onto desorption.
Claims (8)
1. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system, it is characterised in that：The system includes inhaling
Attached tower, jet chimney, flowline, admission line, discharge duct, feeding tube, nitrogen pipeline, air-introduced machine, adsorption tower tail gas
Concentration detector and flowline concentration detector, described adsorption tower top assembling jet chimney, nitrogen pipeline, blast pipe
Road and feeding tube, fit beneath admission line and flowline, described air-introduced machine are assemblied in the input of admission line, institute
The adsorption tower tail gas concentration detector stated is assemblied in the output end of discharge duct, and described flowline concentration detector is assemblied in
The output end of flowline.
2. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 1, it is special
Levy and be：Described adsorption tower includes cylinder, cylindrical sleeves, perforated baffle, metal filter screen and solid adsorption material, its
In, cylinder interior places cylindrical sleeves, and one perforated baffle of bottom port horizontal positioned, the circumferential edges of perforated baffle are fixed on
The inwall of cylinder, for the cylindrical sleeves inside support cylinder, perforated baffle top laying metal filter screen, between cylindrical sleeves
Load solid adsorption material.
3. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 2, it is special
Levy and be：Described cylinder top is provided with circular arc lid, and jet chimney, nitrogen pipeline, exhaust are assembled on the circular arc lid
Pipeline and feeding tube；The cylinder fit beneath admission line and flowline.
4. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 1 and 2, its
It is characterised by：The quantity of described adsorption tower is at least two, and the adsorption and desorption pattern in many adsorption towers is alternately.
5. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 2, it is special
Levy and be：The quantity of the cylindrical sleeves is 3~10, and radius is 0.5m~1.0m.
6. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 2, it is special
Levy and be：The pore diameter range of the perforated baffle is 10~30 mesh.
7. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 2, it is special
Levy and be：The mesh of pore diameter range 100~300 of the metal filter screen.
8. a kind of ultra-high molecular weight polyethylene polymerization tail gas recycle absorption system according to claim 2, it is special
Levy and be：The solid adsorption material is spheric granules resin, and specific surface area is 500~1000m2/g。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545012A (en) * | 2020-05-14 | 2020-08-18 | 中钢集团马鞍山矿山研究总院股份有限公司 | Purifying and removing SO in flue gas2And method of use thereof |
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2016
- 2016-10-31 CN CN201621153809.9U patent/CN206214982U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545012A (en) * | 2020-05-14 | 2020-08-18 | 中钢集团马鞍山矿山研究总院股份有限公司 | Purifying and removing SO in flue gas2And method of use thereof |
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