CN102836615B - Resolving tower and connecting device for tower body section of resolving tower - Google Patents
Resolving tower and connecting device for tower body section of resolving tower Download PDFInfo
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- CN102836615B CN102836615B CN201210355815.2A CN201210355815A CN102836615B CN 102836615 B CN102836615 B CN 102836615B CN 201210355815 A CN201210355815 A CN 201210355815A CN 102836615 B CN102836615 B CN 102836615B
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Abstract
The invention provides a connecting device for a tower body section of a resolving tower. The connecting device comprises a first clamping plate, a second clamping plate, a concave clamping sleeve, a first thread connector and a second thread connector, wherein the first clamping plate and the second clamping plate are respectively arranged at butt-jointed connecting ends of two adjacent tower body sections so as to clamp a pipe plate; the concave clamping sleeve is used for clamping the first clamping plate and the second clamping plate; clearances are arranged between the bottom surface of the concave clamping sleeve and the end surfaces of the first clamping plate, the second clamping plate and the pipe plate; the first thread connector penetrates through the bottom surface of the concave clamping sleeve and is used for fixing the concave clamping sleeve on the end surface of the first clamping plate; and the second thread connector penetrates through the bottom surface of a concave clamping slot and is used for fixing the concave clamping slot on the end surface of the second clamping plate. The connecting device solves the safety problem caused by different deformation of each section of connecting flange and pipe plate of the resolving tower under the effect of heat expansion and cold contraction. The invention also provides the resolving tower.
Description
Technical field
The present invention relates to active carbon desulfurization technical field, more particularly, relate to a kind of tower sections jockey of Analytic Tower, the invention also discloses a kind of Analytic Tower with jockey.
Background technology
In order to solve metallurgy sintered pelletizing smoke pollution problem and the efficient utilization that realizes resource, and then promote environmental protection economical society and social sustainable development, adopting active carbon to process flue gas is one of current state-of-the-art settling mode.
Active carbon flue gases purification is to using active carbon as catalyst, removes the pernicious gases such as SO2, NOx in flue gas, and then reduces the pollution of flue gas to atmosphere, realizes the recycling of sulphur simultaneously.Process for purifying mainly comprises that sulphur absorbs, thiolysis is analysed and three processing procedures of sulfur recovery.Concrete technology is as follows: flue gas enters adsorption tower through booster fan, harmful components in adsorption tower in flue gas issue raw physical-chemical reaction in the effect of active carbon, the sulfate of dust, bioxin and generation is adsorbed in the hole of active carbon, NOx resolves into harmless N2, has finally realized removing of the pernicious gas such as SO2, NOx in flue gas.
We know that active carbon has certain saturation degree to the absorption of harmful substance, the active carbon adsorbing after saturated is discharged from adsorption tower bottom, through conveyer, be transported to the top of Analytic Tower, Analytic Tower is injected at top by Analytic Tower, in Analytic Tower, the harmful substance of charcoal absorption is at high temperature decomposed, high concentration SO 2 gas is released to be recycled, and recapture the bottom of active active carbon by Analytic Tower, discharges after vibratory sieve is removed fine particle and by conveyer, to be transported to adsorption tower top and to refill in adsorption tower and recycle.
Please refer to attached Fig. 1 and 2, in the process that active carbon is resolved in Analytic Tower, on its flow route, be provided with successively the first distribution section 5, bringing-up section 7, the second distribution section 10 and cooling section 11, in bringing-up section 7 and cooling section 11, be provided with tubular heat exchanger, this tubular heat exchanger comprises tube sheet 03 and tube bank, and the position and the tube sheet 03 that on the tower body 3 of its heat exchanging chamber by Analytic Tower, are positioned at bringing-up section or cooling section form.Equally, in the first distribution section 5 and the second distribution section 10, also there is tube sheet 03 and tube bank syndeton.The tower body 3 of existing Analytic Tower is comprised of multistage, adjacent tower sections sandwiched tube sheet 03 is realized and being connected, concrete annexation is: in upper tower sections 01, be provided with flange 06, in lower tower sections 05, be provided with flange 04, tube sheet 03 is arranged between flange 04 and flange 06, by bolt assembly 02, achieves a fixed connection.This kind of structure guaranteed under the prerequisite of tube sheet 03 distributing position, realized tube sheet 03 fixing in Analytic Tower.
Cooling after realizing respectively the heating of active carbon being resolved and resolved of the bringing-up section 7 of Analytic Tower and cooling section 11, in the process of heating and cooling, all parts in bringing-up section 7 and cooling section 11 all can expand with heat and contract with cold, the stroke of all parts is different, in general situation, flange 04 is different from the stroke of tube sheet 03 with flange 06, finally causing connecting two flanges (flange 04 and flange 06) and the bolt of tube sheet 03 is cut off, cause Joint failure, this safety in production to Analytic Tower brings very large hidden danger.
In sum, how solving the potential problem that tower body Joint failure that each section of adpting flange of existing Analytic Tower cause because the deformation quantity expanding with heat and contract with cold is different with tube sheet brings, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides the tower sections jockey of Analytic Tower, each section of adpting flange that has solved existing Analytic Tower with tube sheet because the different bolts that cause of the deformation quantity expanding with heat and contract with cold are cut off, and then the problem of the potential safety hazard of bringing.
In order to achieve the above object, the invention provides following technical scheme:
A kind of tower sections jockey of Analytic Tower, comprise and being separately positioned on the link that adjacent two sections of tower sections connect to clamp the first clamping plate and second clamping plate of tube sheet, and clamp the spill cutting ferrule of described the first clamping plate and the second clamping plate, the bottom surface of described spill cutting ferrule and described the first clamping plate, between the second clamping plate and the end face of tube sheet, all there is gap, this jockey also comprises that bottom surface that the bottom surface that wears described spill cutting ferrule is fixed in the first threaded connector on the end face of described the first clamping plate and wears described spill cutting ferrule is fixed in the second threaded connector on the end face of described the second clamping plate.
In the tower sections jockey of Analytic Tower provided by the invention, on the link connecting in two sections of adjacent tower sections, be provided with the first clamping plate and the second clamping plate for sandwiched tube sheet, spill cutting ferrule clamps the first clamping plate and the second clamping plate, spill cutting ferrule has finally been realized being fixedly linked of two sections of tower sections, and the position that spill cutting ferrule plays connection function is positioned at the first clamping plate, outside the second clamping plate and tube sheet, and there is gap between the bottom of spill cutting ferrule and three, this gap makes in the process of expanding with heat and contract with cold all parts all have the space of buffering, avoid pullling each other, having solved the bolt causing due to all parts stroke difference while being connected with bolt assembly by flange in prior art is cut off, and then make to connect invalid problem, improved the safety coefficient of each section of connection of tower body.
Preferably, in the tower sections jockey of above-mentioned Analytic Tower, the clamping mask of described spill cutting ferrule has the angle of inclination identical with the clamping face of described the first clamping plate and the second clamping plate, and the clamping face of described the first clamping plate and the second clamping plate tilts towards the direction near another one in free-ended direction by stiff end.
Preferably, in the tower sections jockey of above-mentioned Analytic Tower, described the first clamping plate and the second clamping plate are parallel to each other with the clamping face that described spill cutting ferrule coordinates.
Preferably, in the tower sections jockey of above-mentioned Analytic Tower, the refractory seals pad between described the first clamping plate and tube sheet and the second clamping plate and tube sheet is asbestos pad.
A kind of Analytic Tower, comprise tower body and to what set gradually on the material flow path direction of discharging opening, first distribute that section, bringing-up section, second distribute section and cooling section from the charging aperture of the inner chamber of described tower body, described bringing-up section and cooling section are provided with tubular heat exchanger, described tower body is formed by the docking of multistage tower sections, and two sections of adjacent tower sections are connected by the tower sections jockey described in above-mentioned any one.
The above-mentioned tower sections jockey providing has been provided Analytic Tower provided by the invention, so the beneficial effect that the technical scheme of this Analytic Tower has is brought by jockey, specifically please refer to above-mentioned analysis, does not repeat them here.
Preferably, in above-mentioned Analytic Tower, the position that described tower body is relative with described bringing-up section and/or cooling section has the compensator of the compensation of expanding with heat and contract with cold on vertical direction.
Preferably, in above-mentioned Analytic Tower, the heating agent import of described bringing-up section is positioned at the bottom of the tubular heat exchanger at this position, and the heating agent outlet of described bringing-up section is positioned at the top of the tubular heat exchanger at this position.
Preferably, in above-mentioned Analytic Tower, the position that described tower body is relative with described bringing-up section and/or cooling section is provided with the polylith deflection plate of interlaced arrangement.
Preferably, in above-mentioned Analytic Tower, on described tower body, be positioned at the described first position that distributes section top and be provided with the first nitrogen inlet; The position that is positioned at described cooling section bottom on described tower body is provided with the second nitrogen inlet, and the position that is positioned at the second distribution section top on described tower body is provided with nitrogen outlet.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the Analytic Tower that Fig. 1 provides for prior art;
Fig. 2 is the structure for amplifying schematic diagram of A part in Fig. 1;
The structural representation of the Analytic Tower that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structure for amplifying schematic diagram of a kind of Embodiment B part in Fig. 3;
Fig. 5 is the structure for amplifying schematic diagram of another kind of Embodiment B part in Fig. 3;
Fig. 6 is that the C-C of Fig. 3 is to schematic cross-section.
In upper Fig. 1-Fig. 6:
Upper tower sections 01, bolt assembly 02, tube sheet 03, flange 04, lower tower sections 05, flange 06;
Active carbon 1, the gas feed arrangement 2 of locking, tower body 3, the first nitrogen inlet 4, the first distribution section 5, heat air outlet 6, bringing-up section 7, heat air import 8, nitrogen outlet 9, the second distribution section 10, cooling section 11, cold gas entrance 12, cold gas export the 13, second nitrogen inlet 14, lower lock gas drawing mechanism 15, tubulation 16, tube sheet 17.
Upper tower sections 101, the first threaded connector 102, tube sheet 103, the second clamping plate 104, lower tower sections 105, the first clamping plate 106, the second threaded connector 107, gap 108, refractory seals pad 109, spill cutting ferrule 1010.
Upper tower sections 201, the first threaded connector 202, tube sheet 203, the second clamping plate 204, lower tower sections 205, the first clamping plate 206, the second threaded connector 207, gap 208, refractory seals pad 209, spill cutting ferrule 2010.
The specific embodiment
Core improvement of the present invention is that the connected mode of each section of tower sections of Analytic Tower is improved, and has improved the safety coefficient that each tower sections of Analytic Tower connects.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 3, the figure shows the structure of the Analytic Tower that the embodiment of the present invention provides, the Analytic Tower that the embodiment of the present invention provides comprises the gas feed arrangement 2 of locking, tower body 3 and lower lock gas drawing mechanism 15, wherein:
Lock gas feed arrangement 2 and lower lock gas feed arrangement 15 is separately positioned on top and the bottom of tower body 3, realizes the sealing that has guaranteed whole Analytic Tower when controlling active carbon 1 circulation;
Inner chamber along tower body 3, discharging opening from the charging aperture at top to bottom is disposed with the first distribution section 5, bringing-up section 7, the second distribution section 10 and cooling section 11, wherein bringing-up section 7 is provided with tubular heat exchanger, adding thermal medium is flow in bringing-up section 7 and then to enter into the active carbon of tubulation 16 by tube sheet 17 and is heated by heat air import 8, and finally by heat air, export 6 discharges, thereby complete the heating to active carbon, active carbon after heating occurs to resolve harmful substance is parsed with gas form, in preferred scheme, active carbon from the top of tubular heat exchanger towards bottom in the effect current downflow of gravity, in order to improve the efficiency of heating surface to active carbon, the heat air import 8 of bringing-up section 7 is arranged on the bottom of tubular heat exchanger, heat air outlet 6 is arranged on the top of tubular heat exchanger, this kind of structure makes the flow direction of heat air relative with the flow direction of active carbon, as much as possible by the power conversion in heat air to active carbon, concrete, heat air import 8 and heat air outlet 6 can be arranged on the both sides of tower body 3, have lengthened the circulation path of heat air.
Through the active carbon after resolving, enter into the distribution that the second distribution section 10 carries out material and enter into cooling section 11, wherein cooling section 11 is also provided with tubular heat exchanger, to cooling media, by cold gas entrance 12, entering into cooling section 11 carries out cooling and finally by cold gas, exports 13 discharges the active carbon of cooling section 11, through cooled active carbon, by lower lock gas drawing mechanism 15, discharge, thereby completed whole resolving;
On tower body 3, can be provided with the first nitrogen inlet 4 being positioned at the first distribution section 5 top portion, in cooling section 11 lower portion, be provided with the second nitrogen inlet 14, in the second distribution section 10 top portion, be provided with nitrogen outlet 9, in the process of whole parsing, nitrogen becomes the carrier gas of resolving rear harmful components, and the harmful components that under the drive of nitrogen stream, active carbon parsed discharge.
The tower body 3 of the Analytic Tower that the embodiment of the present invention provides is the framework of whole Analytic Tower, it is formed by the docking of multistage tower sections, two sections of adjacent tower sections are connected by tower sections jockey, please refer to accompanying drawing 4, the figure shows a kind of structure of tower sections jockey, comprise and being separately positioned on the link that adjacent two ends tower sections (upper tower sections 101 and lower tower sections 105) connects, the first clamping plate 106 and the second clamping plate 104 with sandwiched tube sheet 103, the first threaded connector 102 and the second threaded connector 107, spill cutting ferrule 1010 clamping the first clamping plate 106 and the second clamping plate 104 and then realized the fastening of upper tower sections 101 and lower tower sections 105, the clamping face that the first clamping plate 106 coordinate with spill cutting ferrule 1010 can be parallel to each other with the clamping face that the second clamping plate 104 coordinate with spill cutting ferrule 1010, in this process, by interference fit, realize clamping, the bottom surface of spill cutting ferrule 1010 and the first clamping plate 106, between the second clamping plate 104 and the end face of tube sheet 103, be provided with gap 108, the first threaded connector 102 passes the bottom surface of spill cutting ferrule 1010 and spill cutting ferrule 1010 is fixed on the end face of the first clamping plate 106, the second threaded connector 107 is fixed on spill cutting ferrule 1010 on the end face of the second clamping plate 104 through the bottom surface of spill cutting ferrule 1010.
Tower sections jockey in the Analytic Tower that the embodiment of the present invention provides has been realized the connection of two adjacent tower sections, spill cutting ferrule 1010 has been realized the clamping of the first clamping plate 106 and the second clamping plate 104, and by two threaded connectors, realized the connection of spill cutting ferrule 1010 and clamping plate, spill cutting ferrule 1010 and the first clamping plate 106 and the second clamping plate 104, between tube sheet 103, there is gap, the first clamping plate 106 can be given in this gap 108, reserved extendable room between the second clamping plate 104 and tube sheet 103, and the screw rod that adopts spill cutting ferrule 1010 to avoid existing bolt assembly to cause due to the stroke difference of all parts as the connector potential safety hazard of being cut off.
Please refer to accompanying drawing 5, the figure shows the structure of another kind of tower sections jockey, this tower sections jockey comprises and being separately positioned on the link that adjacent two ends tower sections (upper tower sections 201 and lower tower sections 205) connects, the first clamping plate 206 and the second clamping plate 204 with sandwiched tube sheet 203, the first threaded connector 202 and the second threaded connector 207, spill cutting ferrule 2010 clamping the first clamping plate 206 and the second clamping plate 204 and then realized the fastening of upper tower sections 201 and lower tower sections 205, the clamping mask of described spill cutting ferrule 2010 has the angle of inclination identical with the clamping face of the first clamping plate 206 and the second clamping plate 204, the clamping face of described the first clamping plate 206 and the second clamping plate 204 tilts towards the direction near another one in free-ended direction by stiff end.Between the bottom surface of spill cutting ferrule 2010 and the first clamping plate 206, the second clamping plate 204 and the end face of tube sheet 203, be provided with gap 208, the first threaded connector 202 passes the bottom surface of spill cutting ferrule 2010 and spill cutting ferrule 2010 is fixed on the end face of the first clamping plate 206, and the second threaded connector 207 is fixed on spill cutting ferrule 2010 on the end face of the second clamping plate 204 through the bottom surface of spill cutting ferrule 2010.This device is except the advantage that has above-mentioned connected mode and have, the clamping mask of the clamping face of spill cutting ferrule 2010, the first clamping plate 206 and the second clamping plate 204 has identical angle of inclination, facilitated the installation clamping of spill cutting ferrule 2010, even if each clamping mask has wearing and tearing also can not affect the stability of clamping.
Analytic Tower needs sealing in the process of work, between the link of each tower sections, be provided with refractory seals and pad existing sealing, concrete, the refractory seals pad (refractory seals pad 109 or refractory seals pad 209) between above-mentioned the first clamping plate (the first clamping plate 106 or the first clamping plate 206) and tube sheet (tube sheet 103 or tube sheet 203), the second clamping plate (the second clamping plate 104 or the second clamping plate 204) and tube sheet (tube sheet 103 or tube sheet 203) is asbestos pad.
The sidewall of the tubular heat exchanger in the Analytic Tower that the embodiment of the present invention provides in bringing-up section 7 is a part for tower body 3, because the effect of this section is that active carbon is heated, this just needs all parts of bringing-up section to have larger hot telescopicing performance, and in like manner, cooling section 11 is also like this.Above-mentioned bringing-up section 7 and cooling section 11 all relate to larger deformation, the deflection of all parts finally can accumulate, except changing good hot retractility material, tower body 3 and the structure of bringing-up section 7, cooling section 11 can also be improved, concrete, the position that described tower body 3 is positioned at bringing-up section 7 and/or cooling section 11 has the compensator that expands with heat and contract with cold and compensate on vertical direction.The concrete position that can be positioned at bringing-up section 10 and/or cooling section 12 on tower body 2 can have fold section, or this partial design is become to curved sections etc.
In order to improve the heat exchange efficiency of bringing-up section 7 or cooling section 11, the position that tower body 3 is relative with bringing-up section 7 or cooling section 11 is provided with the deflection plate being crisscross arranged, the flow route that has lengthened heat exchange medium, has extended the time of heat exchange, has improved the heat exchange efficiency of whole Analytic Tower.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. the tower sections jockey of an Analytic Tower, it is characterized in that, comprise and being separately positioned on the link that adjacent two sections of tower sections connect to clamp the first clamping plate and second clamping plate of tube sheet, and clamp the spill cutting ferrule of described the first clamping plate and the second clamping plate, the bottom surface of described spill cutting ferrule and described the first clamping plate, between the second clamping plate and the end face of tube sheet, all there is gap, this jockey also comprises that bottom surface that the bottom surface that wears described spill cutting ferrule is fixed in the first threaded connector on the end face of described the first clamping plate and wears described spill cutting ferrule is fixed in the second threaded connector on the end face of described the second clamping plate.
2. the tower sections jockey of Analytic Tower according to claim 1, it is characterized in that, the clamping mask of described spill cutting ferrule has the angle of inclination identical with the clamping face of described the first clamping plate and the second clamping plate, and the clamping face of described the first clamping plate and the second clamping plate tilts towards the direction near another one in free-ended direction by stiff end.
3. the tower sections jockey of Analytic Tower according to claim 1, is characterized in that, described the first clamping plate and the second clamping plate are parallel to each other with the clamping face that described spill cutting ferrule coordinates.
4. the tower sections jockey of Analytic Tower according to claim 1, is characterized in that, the refractory seals pad between described the first clamping plate and tube sheet and the second clamping plate and tube sheet is asbestos pad.
5. an Analytic Tower, it is characterized in that, comprise tower body and to what set gradually on the material flow path direction of discharging opening, first distribute that section, bringing-up section, second distribute section and cooling section from the charging aperture of the inner chamber of described tower body, described bringing-up section and cooling section are provided with tubular heat exchanger, described tower body is formed by the docking of multistage tower sections, and two sections of adjacent tower sections are connected by the tower sections jockey described in any one in the claims 1-4.
6. Analytic Tower according to claim 5, is characterized in that, the position that described tower body is relative with described bringing-up section and/or cooling section has the compensator of the compensation of expanding with heat and contract with cold on vertical direction.
7. Analytic Tower according to claim 6, is characterized in that, the heating agent import of described bringing-up section is positioned at the bottom of the tubular heat exchanger at this position, and the heating agent outlet of described bringing-up section is positioned at the top of the tubular heat exchanger at this position.
8. according to the Analytic Tower described in any one in claim 5-7, it is characterized in that, the position that described tower body is relative with described bringing-up section and/or cooling section is provided with the polylith deflection plate of interlaced arrangement.
9. Analytic Tower according to claim 8, is characterized in that, is positioned at the described first position that distributes section top and is provided with the first nitrogen inlet on described tower body; The position that is positioned at described cooling section bottom on described tower body is provided with the second nitrogen inlet, and the position that is positioned at the second distribution section top on described tower body is provided with nitrogen outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355815.2A CN102836615B (en) | 2012-09-21 | 2012-09-21 | Resolving tower and connecting device for tower body section of resolving tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355815.2A CN102836615B (en) | 2012-09-21 | 2012-09-21 | Resolving tower and connecting device for tower body section of resolving tower |
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| Publication Number | Publication Date |
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| CN102836615A CN102836615A (en) | 2012-12-26 |
| CN102836615B true CN102836615B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210355815.2A Active CN102836615B (en) | 2012-09-21 | 2012-09-21 | Resolving tower and connecting device for tower body section of resolving tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103785272A (en) * | 2014-01-29 | 2014-05-14 | 北京创联伍杰科技有限公司 | Extraction device and extraction method for tobacco bois flavors in tobacco processing waste gas |
| CN113091496A (en) * | 2020-02-26 | 2021-07-09 | 谢瑞芳 | Integrated multi-channel industrial mechanical refrigeration cycle heat dissipation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305237Y (en) * | 1997-09-08 | 1999-01-27 | 天津大学 | Connector for filler multiple pipe tower |
| CN201949676U (en) * | 2011-01-13 | 2011-08-31 | 开封黄河空分集团有限公司 | Large-wing T-shaped fixing ring |
| CN202052339U (en) * | 2011-05-10 | 2011-11-30 | 克拉玛依市金利化工有限责任公司 | Fractionating tower structure in precision fractionating device |
| CN202289527U (en) * | 2011-09-28 | 2012-07-04 | 南通星球石墨设备有限公司 | Tower body structure of high-efficiency energy-saving reactor |
-
2012
- 2012-09-21 CN CN201210355815.2A patent/CN102836615B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305237Y (en) * | 1997-09-08 | 1999-01-27 | 天津大学 | Connector for filler multiple pipe tower |
| CN201949676U (en) * | 2011-01-13 | 2011-08-31 | 开封黄河空分集团有限公司 | Large-wing T-shaped fixing ring |
| CN202052339U (en) * | 2011-05-10 | 2011-11-30 | 克拉玛依市金利化工有限责任公司 | Fractionating tower structure in precision fractionating device |
| CN202289527U (en) * | 2011-09-28 | 2012-07-04 | 南通星球石墨设备有限公司 | Tower body structure of high-efficiency energy-saving reactor |
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