CN209205270U - A kind of PP spray absorber producing trim,ethylchlorosilane for folding tower method - Google Patents
A kind of PP spray absorber producing trim,ethylchlorosilane for folding tower method Download PDFInfo
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- CN209205270U CN209205270U CN201821934839.2U CN201821934839U CN209205270U CN 209205270 U CN209205270 U CN 209205270U CN 201821934839 U CN201821934839 U CN 201821934839U CN 209205270 U CN209205270 U CN 209205270U
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Abstract
The utility model relates to a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, spray tower body including being in vertical cylinder, the gas-guide tube for being passed through hydrogen chloride gas is connected on spray tower body lower sides, spray column internal body portion is not equipped with the first spray assemblies and the second spray assemblies, first spray assemblies include the first annular pipe and the first filter plate set gradually from top to bottom, circumferentially arranged with several first spray tubes on first annular pipe side wall, second spray assemblies include the second ring pipe and the second filter plate set gradually from top to bottom, circumferentially arranged with several second spray tubes on second ring pipe side wall, first filter plate and the second filter plate upper surface, which uniformly stack, is equipped with several detention ring assemblies reacted for detention hexamethyldisiloxane cooperation hydrogen chloride gas, the utility model provides a kind of spray effect The PP spray absorber that trim,ethylchlorosilane is produced for folding tower method that fruit is good, spray is high-efficient and raw material availability is high.
Description
Technical field
The utility model relates to trim,ethylchlorosilane production technical fields, and in particular to one kind is for folding tower method production front three
The PP spray absorber of base chlorosilane.
Background technique
Trim,ethylchlorosilane is important protection sillylation reagent, is widely used in fragrance and organic drug synthesis
In, with the development of cephalosporins medicine in recent years, making it, demand is also increasing, a large amount of every year using more and more extensive
Import is mainly converted by hexamethyldisiloxane and is obtained with meet demand, trim,ethylchlorosilane, at present in production trimethyl chlorine
During silane, need to put into its raw material hexamethyldisiloxane is lasting in spray absorber, and in spray-absorption
Tower bottom it is lasting be passed through hydrogen chloride gas, make hexamethyldisiloxane and hydrogen chloride gas inside spray absorber adequately
Haptoreaction, gaseous trim,ethylchlorosilane exports into rectifying column that the reaction was continued from spray-absorption top of tower after completing reaction,
The spraying effect of existing spray absorber spray raw material hexamethyldisiloxane is not in place, and raw material hexamethyldisiloxane is being sprayed
Inside leaching absorption tower cannot adequately detention and being come into full contact with hydrogen chloride gas react, spray-absorption is put into the unit time
For raw material hexamethyldisiloxane inside tower than relatively limited, the slow production efficiency of reaction efficiency is low, and the trimethyl chlorine produced
Silane finished product concentration also will receive corresponding influence, influence the quality of production.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of spraying effects, good, spray is imitated
The PP spray absorber that trim,ethylchlorosilane is produced for folding tower method that rate is high and raw material availability is high.
The technical solution of the utility model is achieved in that a kind of for folding the PP spray of tower method production trim,ethylchlorosilane
Absorption tower is drenched, the spray tower body including being in vertical cylinder, it is characterised in that: connect on the spray tower body lower sides useful
The first spray group is respectively arranged with inside the gas-guide tube for being passed through hydrogen chloride gas, the spray column body and above gas-guide tube
Part and the second spray assemblies, first spray assemblies include the first annular pipe and the first filter plate set gradually from top to bottom,
It is circumferentially equally spaced from each other from being arranged at intervals with several first spray tubes, second spray assemblies on the first annular pipe side wall
It is circumferentially equally spaced from each other on the second ring pipe side wall including the second ring pipe and the second filter plate set gradually from top to bottom
From several second spray tubes are arranged at intervals with, first filter plate and the second filter plate upper surface uniformly stack and are provided with several use
In the detention ring assemblies that detention hexamethyldisiloxane cooperation hydrogen chloride gas is reacted, the spray tower body side is provided with
Hexamethyldisiloxane case is stored up, is provided with spray pump, the input terminal of the spray pump above the storage hexamethyldisiloxane case
Be connected to by input pipe with storage hexamethyldisiloxane case, the output end of the spray pump pass through efferent duct respectively with it is first annular
Pipe is connected with the second ring pipe, and the spray tower body bottom is provided with reservoir, is provided with gas outlet at the top of the spray tower body.
By using above-mentioned technical proposal, it is connected with gas-guide tube on spray tower body lower sides, hydrogen chloride gas is from leading
Tracheae enters inside spray column body, and spray tower body side is provided with storage hexamethyldisiloxane case, stores up two silicon oxygen of hexamethyl
It is provided with spray pump above alkane case, under the extraction effect of spray pump, input terminal persistently extracts storage by the input pipe of connection
Raw material hexamethyldisiloxane inside hexamethyldisiloxane case, and the efferent duct by the way that its output end is arranged in is each led into
It is circumferentially equally spaced from each other from being arranged at intervals with several first on first annular pipe side wall into first annular pipe and the second ring pipe
Spray tube, it is circumferentially equally spaced from each other from several second spray tubes are arranged at intervals on the second ring pipe side wall, pass through several first
Spray tube and several second spray tubes uniformly spray raw material hexamethyldisiloxane respectively to positioned at the first filter plate and second
On the detention ring assemblies of filter plate upper surface, detention ring assemblies, which uniformly stack, to be arranged in the first filter plate and the second filter plate upper surface, is filled
Point by the detention of raw material hexamethyldisiloxane on detention ring assemblies, improve the utilization rate of raw material, the original in the unit time
Material treating capacity greatly promotes, and for cooperating the hydrogen chloride gas risen to be reacted, increases hydrogen chloride gas and hexamethyl two
The contact surface of siloxanes, thus improve spray raw material hexamethyldisiloxane effect, meanwhile, accelerate hydrogen chloride gas with
The reaction efficiency of raw material hexamethyldisiloxane, hydrogen chloride gas rise and with after raw material hexamethyldisiloxane haptoreaction,
Obtained three-level first chlorosilane rises and is exported by gas outlet, reacts filtering of the water in the first filter plate and the second filter plate of output
Under be flowed into be arranged in spray tower body bottom reservoir carry out unified recycling, the utility model provides a kind of spraying effect
Well, the high-efficient and high raw material availability PP spray absorber that trim,ethylchlorosilane is produced for folding tower method is sprayed.
The utility model is further arranged to: the detention ring assemblies include several equally spaced from each other from being spaced apart along longitudinal direction
With the connection ring of central axis, be provided with newel on the central axis of several connection rings, on the newel side wall circumferentially and
It is provided with several detention plates between adjacent connection ring, is fixed to each other company between adjacent connection ring by several detention plates
It connects.
By using above-mentioned technical proposal, detention ring assemblies include several equally spaced from each other from being spaced apart same center along longitudinal direction
The connection ring of axis, and newel is provided on the central axis of several connection rings, circumferentially and positioned at phase on newel side wall
Several detention plates are provided between adjacent connection ring, are mutually permanently connected between adjacent connection ring by several detention plates, from
And the first spray assemblies and the second spray assemblies spray persistently spray raw material hexamethyldisiloxane to detention ring assemblies on it
Afterwards, for raw material hexamethyldisiloxane adequately by detention in several connection rings and detention plate, hydrogen chloride gas is uniform after rising
Be distributed in several longitudinal directions it is equally spaced from each other sow discord every connection ring and several detention plates between, above structure improve gas-liquid point
Cloth takes full advantage of connection ring surface and detention plate surface, keeps raw material hexamethyldisiloxane and hydrogen chloride gas full and uniform
Haptoreaction, treating capacity promotes 50 or more percent compared with the prior art, and the reacting dose of processing raw material is big in the unit time
It is big to be promoted, the efficiency and spraying effect of spray are improved, and improve the purity matter for the finished product trim,ethylchlorosilane that reaction obtains
Amount.
The utility model is further arranged to: several detention plates are sowed discord every setting along newel is circumferentially equally spaced from each other.
By using above-mentioned technical proposal, several detention plates are sowed discord every setting along newel is circumferentially equally spaced from each other, make to spray
The raw material hexamethyldisiloxane poured on detention plate and several connection rings is evenly distributed on detention ring assemblies, and is above gone up
The hydrogen chloride gas come carries out uniformly adequately reaction, improves reaction efficiency and effect.
The utility model is further arranged to: being provided between adjacent two pieces of detention plate and is reinforced detention plate.
By using above-mentioned technical proposal, in order to further increase the detention effect to raw material hexamethyldisiloxane, from
And improve and promote reaction efficiency and improve raw material availability, it is provided between adjacent two pieces of detention plate and reinforces detention plate, simultaneously
The structural strength for improving detention board group part entirety, improves service life.
The utility model is further arranged to: it is described reinforce detention plate both ends respectively with two pieces of adjacent detention plate side walls
Middle part connection.
By using above-mentioned technical proposal, the both ends of detention plate will be reinforced respectively and in the middle part of two pieces of adjacent detention plate side walls
Connection, makes to spray using the above structure the raw material hexamethyldisiloxane on detention plate and several connection rings and is evenly distributed in
On detention ring assemblies, is uniformly adequately reacted with the hydrogen chloride gas progress to come up is risen, improve reaction efficiency and effect.
The utility model is further arranged to: one end direction spray tower body of several first spray tubes far from first annular pipe
Longitudinal central axis line offset, the one end of several second spray tubes far from the second ring pipe are deviated towards spray tower body longitudinal central axis line.
By using above-mentioned technical proposal, in order to further increase the spray effect of the first spray assemblies and the second spray assemblies
Fruit guarantees spray in place, and one end by several first spray tubes far from first annular pipe is inclined towards spray tower body longitudinal central axis line
It moves, the one end of several second spray tubes far from the second ring pipe is deviated towards spray tower body longitudinal central axis line.
The utility model is further arranged to: the connection ring, newel, detention plate and reinforce detention plate material be
Enamel adds fluoroplastics.
Hydrogen chloride gas is prevented by using above-mentioned technical proposal in order to further increase the service life of detention board group part
The material of connection ring, newel, detention plate and reinforcement detention plate is disposed as enamel and adds fluoroplastics by the corrosion of body.
The utility model is further arranged to: on the external wall of spray column and being located at first annular pipe and the second ring pipe
Place is opened up respectively there are two manhole.
By using above-mentioned technical proposal, in order to facilitate the operation of personnel to detention board group part, the first spray inside spray column body
The maintenance replacement for drenching component and the second spray assemblies, on the external wall of spray column and is located at first annular pipe and the second ring pipe
Manhole there are two opening up respectively.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is specific embodiment of the present invention structural schematic diagram.
Fig. 2 is detention ring assemblies schematic view of the front view in specific embodiment of the present invention.
Fig. 3 is detention ring assemblies overlooking structure diagram in specific embodiment of the present invention.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1-Figure 3, the utility model discloses a kind of for folding the PP spray of tower method production trim,ethylchlorosilane
Absorption tower, the spray tower body 100 including being in vertical cylinder, in the utility model specific embodiment, the spray tower body 100
It is connected with the gas-guide tube 101 for being passed through hydrogen chloride gas on lower sides, 100 inside of spray tower body and is located at gas-guide tube
101 tops are respectively arranged with the first spray assemblies and the second spray assemblies, and first spray assemblies include from top to bottom successively
The first annular pipe 111 and the first filter plate 112 being arranged, on first annular 111 side wall of pipe circumferentially it is equally spaced from each other sow discord every
Several first spray tubes 113 are provided with, second spray assemblies include 121 He of the second ring pipe set gradually from top to bottom
Second filter plate 122, it is circumferentially equally spaced from each other from being arranged at intervals with several second spray tubes on 121 side wall of the second ring pipe
123, first filter plate 112 and 122 upper surface of the second filter plate uniformly stack be provided with it is several for two silicon of detention hexamethyl
The detention ring assemblies that oxygen alkane cooperation hydrogen chloride gas is reacted, 100 side of spray tower body are provided with storage two silicon of hexamethyl
Oxygen alkane case 104 is provided with spray pump 105, the input terminal of the spray pump 105 above the storage hexamethyldisiloxane case 104
It is connected to by input pipe 106 with storage hexamethyldisiloxane case 104, the output end of the spray pump 105 passes through efferent duct 107
It is connect respectively with first annular pipe 111 and the second ring pipe 121,100 bottom of spray tower body is provided with reservoir 102, institute
It states and is provided with gas outlet 103 at the top of spray tower body 100.
By using above-mentioned technical proposal, gas-guide tube 101, hydrogen chloride gas are connected on spray 100 lower sides of tower body
Body enters inside spray tower body 100 from gas-guide tube 101, and spray 100 side of tower body is provided with storage hexamethyldisiloxane case
104, it stores up and is provided with spray pump 105 above hexamethyldisiloxane case 104, under the extraction effect of spray pump 105, input terminal
The raw material hexamethyldisiloxane inside storage hexamethyldisiloxane case 104 is persistently extracted by the input pipe 106 of connection, and is led to
It crosses and the efferent duct 107 of its output end is set each leads into first annular pipe 111 and the second ring pipe 121, it is first annular
It is circumferentially equally spaced from each other from being arranged at intervals with several first spray tubes 113, edge on 121 side wall of the second ring pipe on 111 side wall of pipe
It is circumferential equally spaced from each other from several second spray tubes 123 are arranged at intervals with, pass through several first spray tubes 113 and several second sprays
Pipe 123 uniformly sprays raw material hexamethyldisiloxane respectively to positioned at 122 upper surface of the first filter plate 112 and the second filter plate
On detention ring assemblies, detention ring assemblies uniformly stack setting in 122 upper surface of the first filter plate 112 and the second filter plate, adequately will
The detention of raw material hexamethyldisiloxane improves the utilization rate of raw material, the feedstock processing in the unit time on detention ring assemblies
Amount greatly promotes, and for cooperating the hydrogen chloride gas risen to be reacted, increases hydrogen chloride gas and hexamethyldisiloxane
Contact surface, thus improve spray raw material hexamethyldisiloxane effect, meanwhile, accelerate hydrogen chloride gas and raw material six
The reaction efficiency of tetramethyldisiloxane, hydrogen chloride gas rise and with after raw material hexamethyldisiloxane haptoreactions, obtain
Trim,ethylchlorosilane, which rises and passes through gas outlet 103, to be exported, and reacts the water of output in the first filter plate 112 and the second filter plate 122
Be flowed under filtering be arranged in spray 100 bottom of tower body reservoir 102 carry out unified recycling, the utility model provides one
Kind spraying effect is good, spray is high-efficient and the PP spray-absorption that trim,ethylchlorosilane is produced for folding tower method high raw material availability
Tower.
In the utility model specific embodiment, the detention ring assemblies include it is several along longitudinal direction it is equally spaced from each other sow discord every point
Cloth is provided with newel 132, the newel 132 on the central axis of several connection rings 131 with the connection ring 131 of central axis
Several detention plates 133 are provided on side wall circumferentially and between adjacent connection ring 131, between adjacent connection ring 131
It is mutually permanently connected by several detention plates 133.
By using above-mentioned technical proposal, detention ring assemblies include several equally spaced from each other from being spaced apart same center along longitudinal direction
The connection ring 131 of axis, and newel 132 is provided on the central axis of several connection rings 131, edge on 132 side wall of newel
Several detention plates 133 are provided with circumferentially and between adjacent connection ring 131, are passed through between adjacent connection ring 131 several
Detention plate 133 is mutually permanently connected, to persistently spray raw material hexamethyl in the first spray assemblies and the second spray assemblies spray
After on disiloxane to detention ring assemblies, raw material hexamethyldisiloxane is abundant in several connection rings 131 and detention plate 133
By detention, hydrogen chloride gas be evenly distributed in after rising several longitudinal directions it is equally spaced from each other sow discord every connection ring 131 and several
Between detention plate 133, above structure improves the distribution of gas-liquid, takes full advantage of 133 table of 131 surface of connection ring and detention plate
Face, makes raw material hexamethyldisiloxane and the full and uniform haptoreaction of hydrogen chloride gas, and treating capacity is promoted compared with the prior art
50 or more percent, the unit time reacting dose of interior processing raw material greatly promotes, and improves the efficiency and spraying effect of spray,
And improve the purity Coriolis mass for the finished product trim,ethylchlorosilane that reaction obtains.
In the utility model specific embodiment, several detention plates 133 equally spaced from each other are sowed discord every setting along newel 132 is circumferential
It sets.
By using above-mentioned technical proposal, several detention plates 133 equally spaced from each other are sowed discord every setting along newel 132 is circumferential
It sets, makes to spray the raw material hexamethyldisiloxane on detention plate 133 and several connection rings 131 and be evenly distributed in detention ring group
On part, is uniformly adequately reacted with the hydrogen chloride gas progress to come up is risen, improve reaction efficiency and effect.
In the utility model specific embodiment, it is provided between adjacent two pieces of detention plate 133 and reinforces detention plate 134.
By using above-mentioned technical proposal, in order to further increase the detention effect to raw material hexamethyldisiloxane, from
And improve and promote reaction efficiency and improve raw material availability, it is provided between adjacent two pieces of detention plate 133 and reinforces detention plate
134, while the structural strength of detention board group part entirety is improved, it improves service life.
In the utility model specific embodiment, it is described reinforce detention plate 134 both ends respectively with two pieces of adjacent detentions
Connection in the middle part of 133 side wall of plate.
By using above-mentioned technical proposal, will reinforce the both ends of detention plate 134 respectively with two pieces of adjacent 133 sides of detention plate
Connection, makes to spray using the above structure the raw material hexamethyldisiloxane on detention plate 133 and several connection rings 131 in the middle part of wall
It is evenly distributed on detention ring assemblies, is uniformly adequately reacted with the hydrogen chloride gas progress to come up is risen, improve reaction effect
Rate and effect.
In the utility model specific embodiment, the one end of the first spray tube 113 far from first annular pipe 111 is done towards spray
Drench 100 longitudinal central axis line offset of tower body, one end direction spray tower body of several second spray tubes 123 far from the second ring pipe 121
100 longitudinal central axis line offsets.
By using above-mentioned technical proposal, in order to further increase the spray effect of the first spray assemblies and the second spray assemblies
Fruit guarantees spray in place, and one end by several first spray tubes 113 far from first annular pipe 111 is longitudinal towards spray tower body 100
Axis line offset, one end direction spray tower body 100 longitudinal central axis line of several second spray tubes 123 far from the second ring pipe 121
Offset.
In the utility model specific embodiment, the connection ring 131, newel 132, detention plate 133 and reinforcement detention
The material of plate 134 is that enamel adds fluoroplastics.
Hydrogen chloride gas is prevented by using above-mentioned technical proposal in order to further increase the service life of detention board group part
The material of connection ring 131, newel 132, detention plate 133 and reinforcement detention plate 134 is disposed as enamel and added by the corrosion of body
Fluoroplastics.
In the utility model specific embodiment, on 100 outer wall of spray tower body and it is located at first annular 111 He of pipe
Manhole 108 there are two being opened up respectively at second ring pipe 121.
By using above-mentioned technical proposal, in order to facilitate the operation of personnel to spray 100 inside detention board group part of tower body, first
The maintenance of spray assemblies and the second spray assemblies is replaced, and on spray 100 outer wall of tower body and is located at first annular pipe 111 and second
Manhole 108 there are two being opened up respectively at ring pipe 121.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, the spray tower body including being in vertical cylinder
(100), it is characterised in that: the gas-guide tube for being passed through hydrogen chloride gas is connected on described spray tower body (100) lower sides
(101), the spray tower body (100) is internal and is respectively arranged with the first spray assemblies and second above gas-guide tube (101)
Spray assemblies, first spray assemblies include the first annular pipe (111) and the first filter plate set gradually from top to bottom
It is (112), circumferentially equally spaced from each other from being arranged at intervals with several first spray tubes (113) on first annular pipe (111) side wall,
Second spray assemblies include the second ring pipe (121) and the second filter plate (122) set gradually from top to bottom, and described second
It is circumferentially equally spaced from each other from being arranged at intervals with several second spray tubes (123), first filter plate on ring pipe (121) side wall
(112) and the second filter plate (122) upper surface uniformly stack be provided with it is several for detention hexamethyldisiloxane cooperate chlorination
The detention ring assemblies that hydrogen is reacted, spray tower body (100) side are provided with storage hexamethyldisiloxane case
(104), it is provided with spray pump (105) above the storage hexamethyldisiloxane case (104), the input of the spray pump (105)
End is connected to by input pipe (106) with storage hexamethyldisiloxane case (104), and the output end of the spray pump (105) passes through defeated
Outlet pipe (107) is connect with first annular pipe (111) and the second ring pipe (121) respectively, the setting of the spray tower body (100) bottom
Have reservoir (102), is provided with gas outlet (103) at the top of the spray tower body (100).
2. according to claim 1 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, feature
Be: the detention ring assemblies include several equally spaced from each other from the connection ring (131) for being spaced apart same central axis along longitudinal direction, if should
It is provided with newel (132) on the central axis of dry connection ring (131), circumferentially and positioned at phase on newel (132) side wall
Several detention plates (133) are provided between adjacent connection ring (131), pass through several detention plates between adjacent connection ring (131)
(133) it is mutually permanently connected.
3. according to claim 2 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, feature
Be: several detention plates (133) equally spaced from each other are sowed discord every setting along newel (132) is circumferential.
4. it is according to claim 2 or 3 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, it is special
Sign is: being provided between adjacent two pieces of detention plate (133) and reinforces detention plate (134).
5. according to claim 4 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, feature
Be: the both ends for reinforcing detention plate (134) are connect in the middle part of two pieces of adjacent detention plate (133) side walls respectively.
6. it is according to claim 1 or 2 or 3 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane,
It is characterized by: the one end of several first spray tubes (113) far from first annular pipe (111) is longitudinal towards spray tower body (100)
Axis line offset, the one end of several second spray tubes (123) far from the second ring pipe (121) are longitudinal towards spray tower body (100)
Axis line offset.
7. according to claim 4 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane, feature
Be: the connection ring (131), newel (132), detention plate (133) and reinforce detention plate (134) material be enamel
Add fluoroplastics.
8. it is according to claim 1 or 2 or 3 a kind of for folding the PP spray absorber of tower method production trim,ethylchlorosilane,
It is characterized by: on spray tower body (100) outer wall and being located at first annular pipe (111) and the second ring pipe (121) punishment
There are two not opening up manhole (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821934839.2U CN209205270U (en) | 2018-11-22 | 2018-11-22 | A kind of PP spray absorber producing trim,ethylchlorosilane for folding tower method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821934839.2U CN209205270U (en) | 2018-11-22 | 2018-11-22 | A kind of PP spray absorber producing trim,ethylchlorosilane for folding tower method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209205270U true CN209205270U (en) | 2019-08-06 |
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ID=67460744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821934839.2U Active CN209205270U (en) | 2018-11-22 | 2018-11-22 | A kind of PP spray absorber producing trim,ethylchlorosilane for folding tower method |
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| Country | Link |
|---|---|
| CN (1) | CN209205270U (en) |
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2018
- 2018-11-22 CN CN201821934839.2U patent/CN209205270U/en active Active
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