CN103553870A - Tetrachloroethylene deoxidization and dehydration equipment - Google Patents
Tetrachloroethylene deoxidization and dehydration equipment Download PDFInfo
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- CN103553870A CN103553870A CN201310525389.7A CN201310525389A CN103553870A CN 103553870 A CN103553870 A CN 103553870A CN 201310525389 A CN201310525389 A CN 201310525389A CN 103553870 A CN103553870 A CN 103553870A
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- zellon
- tower body
- deoxygenation
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Abstract
The invention discloses tetrachloroethylene deoxidization and dehydration equipment. The equipment comprises a feed pump, a deoxidization drying tower, filters and a finished product tank, which are sequentially communicated, wherein the deoxidization drying tower comprises a tower body, and an end enclosure is arranged at each of the upper and lower ends of the tower body; the tower body is divided into an upper section, a middle section and a lower section, each of which is filled with an alkali filler and a molecular sieve; filler support grid plates are arranged on the lower and middle parts of the tower body respectively; stainless steel meshes are laid on the filler support grid plates; filler pressing plates are arranged on the upper parts of the fillers in the tower body; a feed port is formed in the central position of the upper end enclosure, and a discharge port is formed in the central position of the lower end enclosure; the filters I are arranged at the feed port and the discharge port, and a buffer plate is arranged at the feed port; a detachable distribution plate is arranged below the buffer plate; flow baffle plates are arranged below the filler support grid plates. According to the equipment, water in tetrachloroethylene is reduced, the pH value of tetrachloroethylene is increased, influence on the purity of tetrachloroethylene is avoided, and high chromaticity is ensured; a closed circulation mode is adopted for a system, waste residues and wastewater are avoided, and the equipment is easy to operate, safe and reliable.
Description
The application is dividing an application of application number 2012100067182, January 11 2012 applying date, denomination of invention " a kind of zellon deoxygenation dewatering process and equipment thereof ".
Technical field
The present invention relates to a kind of deoxygenation dehydration equipment, specifically a kind of zellon deoxygenation dehydration equipment, belongs to zellon process field.
Background technology
In the production technique of zellon clean-out system, deoxygenation processed is a difficult problem for puzzlement zellon clean-out system industry, in zellon raw materials for production, the volume fraction of each main component is respectively, ethylene dichloride 0.00001%, trieline 0.00114%, trichloroethane 0.00003%, tetrachloroethane 0.00005%, pentaline 0.00002, zellon 99.99%, moisture 0.0045%, acidity 0.0005%, PH=4.5, although the main content of zellon is very high, but do not having under treated prerequisite, be configured to zellon purity and be greater than 99.9%, PH=8.5, moisture is less than 0.003% clean-out system, the product stability of allotting can be poor, purity is low, colour difference, do not reach the requirement of clean-out system ZBG16008-89 standard.
The producer of domestic current production zellon is not a lot, and major part is all to adopt external import clean-out system.As the zellon clean-out system of company's productions such as Britain's Ineos, Dupont, domestic zellon clean-out system can only be done the low-end markets such as the large parts of automobile, as for high-end markets such as circuit card, airplane component cleanings, it is all the zellon clean-out system that adopts external import.
Summary of the invention
The problem to be solved in the present invention is for above deficiency, a kind of zellon deoxygenation dehydration equipment is provided, overcome prior art and produce the defect of zellon poor performance, adopt after technical scheme of the present invention, can reduce to greatest extent moisture and the pH value that improves zellon in zellon, moisture has reduced 60-80ppm, and pH value has improved 4 left and right, reaches the high-end zellon clean-out system specification of quality of configuration completely.
For overcoming the above problems, the technical solution used in the present invention is:
A deoxygenation dewatering process, comprises the following steps:
(1) zellon is sent in head tank, detected chemical examination colourity, purity, moisture, pH value index;
(2) according to result of laboratory test, adjust molecular sieve model in deoxygenation drying tower, the type of molecular sieve adopts 3A, 4A or 5A type, the type of oxygen scavenger, the length of activated carbon adopts 3mm, 4mm or 5mm type, and the amount that adds oxygen scavenger and molecular sieve;
Moisture adopts 5A molecular sieve at 70-80ppm, and moisture adopts 4A molecular sieve at 60-70ppm, and moisture adopts 3A molecular sieve at 50-60ppm;
PH value adopts 3mm left and right alkaline carbon oxygen scavenger when 2-3, and pH value adopts 4mm left and right alkaline carbon oxygen scavenger when 3-4, and pH value adopts 5mm left and right alkaline carbon oxygen scavenger when 4-5;
If moisture is at 70-80ppm, PH is when 2-3, and adding the quality of oxygen scavenger and molecular sieve mass ratio is 1:9.5; In other situation, adding quality and the molecular sieve mass ratio of oxygen scavenger is 1:10;
(3) start fresh feed pump, zellon is sent in deoxygenation drying tower, start PH on-line monitoring instrument, and open filter inlet;
(4) adjusting flow in deoxygenation drying tower is 20-30t/h, guarantee zellon in deoxygenation drying tower fully and basic filler if alkaline carbon and molecular sieve are as Al
2o
3contact, removes acid and moisture in material;
(5) dried zellon is transported in finished pot through strainer, and gas phase recovery device is set on finished pot.
If the molecular sieve in deoxygenation drying tower lost efficacy, by nitrogen heater, be dried and repeat regeneration: utilize nitrogen replacement to go out the zellon in moisture eliminator, then pass into the nitrogen of 150 ℃, nitrogen flow is at 100-150Nm
3/ h, pressure, at 0.2MPa, dries the moisture of the inside, and at 5h, when the import of deoxygenation drying tower is consistent with temperature out, stop nitrogen time of drying, closes gangway.
In above-mentioned steps (2), the molecular sieve model of deoxygenation drying tower and oxygen scavenger type are done to two-way choice, according to the detected result of zellon, do suitable selection, thereby can bring into play to greatest extent the effect of oxygen scavenger and molecular sieve, reduce drying cost.
In above-mentioned steps (3), through the dried zellon liquid of deoxygenation, pass through PH on-line monitoring instrument Real-Time Monitoring basicity, be no more than 30ppm, prevent that basicity is too high, cause zellon off quality;
Strainer in above-mentioned steps (3) is guaranteed the colourity of zellon product, and by arranging after strainer, colourity (platinum-cobalt) has improved 5 left and right.
For an equipment for above-mentioned zellon deoxygenation drying process, comprise the fresh feed pump, deoxygenation drying tower, strainer and the finished pot that are communicated with successively;
Described deoxygenation drying tower, comprises tower body, and the two ends up and down of described tower body are equipped with end socket; Described tower body is divided into upper, middle and lower three joints, and every joint is loaded respectively basic filler if alkaline carbon and molecular sieve are as Al
2o
3, according to testing data, calculate and carry out layering in 4:3 ratio; In described tower body, being provided with packing support screen is filler baffle plate, is provided with basic filler baffle plate and molecular sieve filling baffle plate in described tower body top, and basic filler is loaded on upper strata, and lower floor loads molecular sieve filling; It is basic filler that the filler of middle tower body and tower body bottom is filled same upper strata, and lower floor is molecular sieve filling; Described basic filler baffle plate and molecular sieve filling baffle plate are all equipped with 38 object stainless (steel) wires, prevent filler leakage, play liquid distributor simultaneously, are convenient to same filler and fully disperse contact; In tower body, the top of filler is provided with hold-down grid;
The central position of described upper cover is provided with opening for feed, and lower cover central position is provided with discharge port; On described opening for feed and discharge port, be equipped with strainer I, remove molecule in filler, described upper cover opening for feed place is provided with dash plate, prevents from directly impacting filler, plays the effect of dispersion simultaneously;
Dash plate below in described opening for feed place is provided with dismountable distributing disc, and it is the aperture of 6 millimeters that described distributing disc is provided with 76 diameters, as liquid distributor, uses, and liquid is contacted with filler fully.
Described filler baffle plate below is provided with flow-stopping plate, prevents that liquid is in equipment and filler loose contact;
Further, the top of described tower body is provided with a venting port.
The bottom of described every joint tower body is equipped with hand hole.
The inter-chamber tower joint of described tower body is followed successively by straight length, transition section and expanding reach from top to bottom, thereby can make zellon contact fully filler, controls mobile speed simultaneously, makes zellon and filler have enough duration of contact.
The internal diameter of described straight length is 600mm, and the internal diameter of described expanding reach is 1000mm.
The height of described expanding reach is 500mm, and the height of transition section is 300mm.
The lower support filler screen that the inter-chamber tower joint of described tower body comprises is divided into two and installs.
Principle of work: zellon liquid product enters from the opening for feed of tower body, through dash plate buffering and distributing disc even action process packing layer, the liquid that flow-stopping plate changes the tower wall of flowing through makes its packing layer of fully flowing through, basic filler neutralizes the acid in zellon, molecular sieve absorbs the moisture in zellon, through the repeating neutralization and absorb of multiple filling layers, the high-quality zellon product that make that zellon initial p H value is not less than 6.5, colourity is less than 15, moisture is less than 50ppm enters finished product storage tank from discharge port.
Between described deoxygenation drying tower and strainer, be provided with PH on-line monitoring instrument; Described deoxygenation drying tower is also connected with nitrogen heater; Between described fresh feed pump and deoxygenation drying tower, be provided with mass flowmeter; Between going out, described fresh feed pump and filter outlet be provided with back flushing pipeline; The gaseous phase outlet of described finished pot arranges gas phase withdrawing can.
Described fresh feed pump is transported to deoxygenation drying tower by the zellon product of tentatively producing by the pipeline of strainer is housed, liquid enters deoxygenation drying tower from opening for feed through dash plate, the flow direction that described flow-stopping plate changes the appts wall of flowing through fully contacts it with packing layer, the qualified zellon liquid of processing through packing layer enters high quality zellon storage tank from deoxygenator discharge port.
The present invention adopts above technical scheme, compared with prior art, has the following advantages:
1, by adopt deoxidation drying tower carry out deoxidation dry after, can reduce to greatest extent moisture and the pH value that improves zellon in zellon, moisture has reduced 60-80ppm, and pH value has improved 4 left and right, reaches the high-end zellon clean-out system specification of quality of configuration completely.
2, at all unaffected by the dried zellon purity of alkaline carbon, colourity is good;
3, system adopts sealing and circulating, can not produce waste residue, waste water, simple to operate, safe and reliable.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 2 zellon Deoxidizing desiccators;
Fig. 2 is the structural representation of the embodiment of the present invention 2 deoxygenation drying towers;
In figure: 1-dash plate; 2-opening for feed; 3-venting port; 4-upper cover; 5-distributing disc; 7-basic filler baffle plate; 8-molecular sieve filling baffle plate; 9-straight length; 10-transition section; 11-expanding reach; 13-tower body; 14-flow-stopping plate; 16-lower cover; 17-discharge port, 101-fresh feed pump, 102-deoxygenation drying tower, 103-strainer, 104-finished pot, 105-nitrogen heater, 106-back flushing pipeline, 107-gas phase withdrawing can, 108-PH on-line monitoring instrument.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment 1
A deoxygenation dewatering process, comprises the following steps:
(1) zellon to be configured is sent in head tank V101, detected laboratory indexes and comprise colourity, purity, moisture, pH value;
(2) according to result of laboratory test, moisture adopts 5A molecular sieve at 70-80 ppm, and moisture adopts 4A molecular sieve at 60-70ppm, and moisture adopts 3A molecular sieve at 50-60ppm; PH value adopts 3mm left and right alkaline carbon oxygen scavenger when 2-3, and pH value adopts 4mm left and right alkaline carbon oxygen scavenger when 3-4, and pH value adopts 5mm left and right alkaline carbon oxygen scavenger when 4-5; If moisture is at 70-80ppm, PH is when 2-3, and adding the quality of oxygen scavenger and molecular sieve mass ratio is 1:9.5; In other situation, adding quality and the molecular sieve mass ratio of oxygen scavenger is 1:10;
(3) start fresh feed pump P101A, zellon is sent in deoxygenation drying tower T101, start PH on-line monitoring instrument, and open strainer X101 import;
(4) adjust flow FIC101 in deoxygenation drying tower, adjust the scope 20-30t/h of flow, guarantee that zellon fully contacts with molecular sieve with alkaline carbon in deoxygenation drying tower, remove acid and moisture in material;
(5) if the molecular sieve in deoxygenation drying tower T101 lost efficacy, by nitrogen heater, be dried E101, utilize nitrogen replacement to go out the zellon in moisture eliminator, then pass into 150 ℃ of hot nitrogens, nitrogen flow is at 100-150Nm3/h, pressure, in 0.2MPa left and right, dries the moisture of the inside, and time of drying is in 5h left and right.Until the import of deoxygenation drying tower and temperature out, when unanimous on the whole, stop nitrogen, close gangway, standby.
(5) last, dried zellon is transported in finished pot through strainer, gas phase recovery device is set on finished pot.
Table 1. adopts the deoxygenation dehydration indexes before and after technique of the present invention
Results and analysis: as can be seen from the above table, adopt after technique of the present invention, originally the pH value of zellon is at 2-3, moisture is at 80-100ppm, colourity (cobalt-platinum) is in 15 left and right, and after deoxygenation drying tower, the pH value of zellon is at 6-7, moisture is at 20-40ppm, and colourity (cobalt-platinum) is in 10 left and right.
Cost savings, produce one ton of high-quality zellon raw material now, and cost, 6000 yuan of left and right, was produced one ton of high-quality zellon raw material originally, and cost is 7000 yuan of left and right. and cost-saving per ton 1000 yuan of left and right.
Embodiment 2
As illustrated in fig. 1 and 2, a kind of equipment of the zellon deoxygenation drying process for above-described embodiment 1, comprises the fresh feed pump 101, deoxygenation drying tower 102, strainer 103 and the finished pot 104 that are communicated with successively;
Described deoxygenation drying tower, comprises tower body 13, and the two ends up and down of described tower body 13 are respectively equipped with upper cover 4 and lower cover 16; Described tower body 13 is divided into upper, middle and lower three joints, and every joint is loaded respectively basic filler alkaline carbon and molecular sieve-4 A l
2o
3, in 4:3 ratio, carry out layering; The bottom of described tower body 13 and middle part are respectively equipped with packing support screen, in described upper tower body 6, are provided with basic filler baffle plate 7 and molecular sieve filling baffle plate 8, and basic filler is loaded on upper strata, and lower floor loads molecular sieve filling; It is basic filler that the filler of middle tower body and lower tower body is filled same upper strata, and lower floor is molecular sieve filling; Described basic filler baffle plate 7 and molecular sieve filling baffle plate 8 are all equipped with 38 object stainless (steel) wires, prevent filler leakage, play liquid distributor simultaneously, are convenient to same filler and fully disperse contact; The top of tower body 13 interior fillers is provided with hold-down grid;
The central position of described upper cover 4 is provided with opening for feed 2, and lower cover 16 central positions are provided with discharge port 17; On described opening for feed 2 and discharge port 17, be equipped with strainer I, remove molecule in filler, opening for feed 2 places of described upper cover 4 are provided with dash plate 1, prevent from directly impacting filler, play the effect of dispersion simultaneously; Described opening for feed 2 place's dash plate 1 belows are provided with dismountable charging distributing disc 5, and it is the aperture of 6 millimeters that described distributing disc 5 is provided with 76 diameters, as liquid distributor, use, and liquid is fully contacted with filler; Described filler baffle plate below is provided with flow-stopping plate 14, prevents that liquid is in equipment and filler loose contact.
The top of described tower body 13 is provided with a venting port 3; The bottom of described every joint tower body 13 is equipped with hand hole; The inter-chamber tower joint of described tower body 13 is followed successively by straight length 9, transition section 10 and expanding reach 11 from top to bottom, thereby can make zellon fully contact filler, controls mobile speed simultaneously, makes zellon and filler have enough duration of contact.
The internal diameter of described straight length 9 is 600mm, and the internal diameter of described expanding reach 11 is 1000mm; The height of described expanding reach 11 is 500mm, and the height of transition section 10 is 300mm; The lower support filler screen that the inter-chamber tower joint of described tower body 13 comprises is divided into two and installs.
During work, zellon liquid product enters from opening for feed 2, through dash plate 1, disperses for the first time, dispersed through charging distributing disc 5, the packing layer that the Ta Jienei that flows through fills, and last high-quality zellon liquid enters storage tank from discharge port 17.
Between described deoxygenation drying tower 103 and strainer 103, be provided with PH on-line monitoring instrument 108.
Described deoxygenation drying tower 102 is also connected with nitrogen heater 105, between fresh feed pump 101 and deoxygenation drying tower 102, be provided with mass flowmeter, between fresh feed pump 101 and strainer 103 outlets, be provided with back flushing pipeline 106, the gaseous phase outlet of described finished pot 104 arranges gas phase withdrawing can 107.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a zellon deoxygenation dehydration equipment, is characterized in that: described deoxygenation dehydration equipment comprises fresh feed pump (101), deoxygenation drying tower (102), strainer (103) and the finished pot (104) being communicated with successively;
Described deoxygenation drying tower (102) comprises tower body (13), and the two ends up and down of described tower body (13) are equipped with end socket;
Described tower body (13) is divided into upper, middle and lower three joints, and every joint is loaded respectively basic filler and molecular sieve;
Bottom and the middle part of described tower body (13) are respectively equipped with packing support screen, on described packing support screen, are equipped with stainless (steel) wire; The top of the interior filler of tower body (13) is provided with hold-down grid; The central position of upper cover (4) is provided with opening for feed (2), and lower cover (16) central position is provided with discharge port (17);
On described opening for feed (2) and discharge port (17), be equipped with strainer I, described opening for feed (2) locates to be provided with dash plate (1); Described dash plate (1) below is provided with dismountable distributing disc (5); Described packing support screen below is provided with flow-stopping plate (14).
2. a kind of zellon deoxygenation dehydration equipment as claimed in claim 1, is characterized in that: between described deoxygenation drying tower (102) and strainer (103), be provided with PH on-line monitoring instrument (108);
Described deoxygenation drying tower (102) is also connected with nitrogen heater (105);
Between described fresh feed pump (101) and deoxygenation drying tower (102), be provided with mass flowmeter;
Between described fresh feed pump (101) and strainer (103) exit, be provided with back flushing pipeline (106);
The gaseous phase outlet of described finished pot (104) is provided with gas phase withdrawing can (107).
3. a kind of zellon deoxygenation dehydration equipment according to claim 2, is characterized in that: the top of described tower body (13) is provided with a venting port.
4. according to a kind of zellon deoxygenation dehydration equipment described in claim 2 or 3, it is characterized in that: the bottom of described every joint tower body (13) is equipped with hand hole.
5. a kind of zellon deoxygenation dehydration equipment according to claim 4, is characterized in that: the inter-chamber tower joint of described tower body (13) is followed successively by straight length (9), transition section (10) and expanding reach (11) from top to bottom.
6. a kind of zellon deoxygenation dehydration equipment according to claim 5, is characterized in that: the internal diameter of described straight length (9) is 600mm, and the internal diameter of described expanding reach (11) is 1000mm.
7. a kind of zellon deoxygenation dehydration equipment according to claim 5, is characterized in that: the height of described expanding reach (11) is 500mm, and the height of transition section (10) is 300mm.
8. a kind of zellon deoxygenation dehydration equipment according to claim 2, is characterized in that: the lower packing support screen that the inter-chamber tower joint of described tower body (13) comprises is provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525389.7A CN103553870B (en) | 2012-01-11 | 2012-01-11 | Tetrachloroethylene deoxidization and dehydration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525389.7A CN103553870B (en) | 2012-01-11 | 2012-01-11 | Tetrachloroethylene deoxidization and dehydration equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210006718 Division CN102557862B (en) | 2012-01-11 | 2012-01-11 | Process for deoxidizing and dehydrating tetrachloroethylene and equipment for process |
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| CN103553870A true CN103553870A (en) | 2014-02-05 |
| CN103553870B CN103553870B (en) | 2015-06-03 |
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| CN201310525389.7A Active CN103553870B (en) | 2012-01-11 | 2012-01-11 | Tetrachloroethylene deoxidization and dehydration equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4823059B1 (en) * | 1969-07-22 | 1973-07-11 | ||
| JPH0823059A (en) * | 1994-07-05 | 1996-01-23 | Toppan Printing Co Ltd | Manufacture of lead frame and etching method of dissimilar metal laminated material |
| CN101255092A (en) * | 2008-04-09 | 2008-09-03 | 宁波巨化化工科技有限公司 | Reactor for producing tetrachloroethylene |
| CN102557862A (en) * | 2012-01-11 | 2012-07-11 | 山东新龙硅业科技有限公司 | Process for deoxidizing and dehydrating tetrachloroethylene and equipment for process |
-
2012
- 2012-01-11 CN CN201310525389.7A patent/CN103553870B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4823059B1 (en) * | 1969-07-22 | 1973-07-11 | ||
| JPH0823059A (en) * | 1994-07-05 | 1996-01-23 | Toppan Printing Co Ltd | Manufacture of lead frame and etching method of dissimilar metal laminated material |
| CN101255092A (en) * | 2008-04-09 | 2008-09-03 | 宁波巨化化工科技有限公司 | Reactor for producing tetrachloroethylene |
| CN102557862A (en) * | 2012-01-11 | 2012-07-11 | 山东新龙硅业科技有限公司 | Process for deoxidizing and dehydrating tetrachloroethylene and equipment for process |
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Effective date of registration: 20200702 Address after: 262700 No.26, Tianliu section, No.3 Road, Shouguang City, Weifang City, Shandong Province Patentee after: Li Tong Address before: 262709 Shandong city in Weifang Province, Shouguang City, Wang Xinlong Industrial Park Industrial Company West Road PVC Patentee before: SHANDONG XINLONG TECHNOLOGY Co.,Ltd. |
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