CN104128011A - Scraper type separator - Google Patents
Scraper type separator Download PDFInfo
- Publication number
- CN104128011A CN104128011A CN201410346648.4A CN201410346648A CN104128011A CN 104128011 A CN104128011 A CN 104128011A CN 201410346648 A CN201410346648 A CN 201410346648A CN 104128011 A CN104128011 A CN 104128011A
- Authority
- CN
- China
- Prior art keywords
- scraper
- rotating cylinder
- cage shape
- shape rotating
- type separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 46
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a scraper type separator, which comprises a cylindrical cylinder body, an air flow inlet, a cage-shaped rotating cylinder and an elastic scraper. The cage-shaped rotating cylinder is arranged in the center of the cylindrical cylinder body; one side edge of the elastic scraper is located on the circumference of the cage-shaped rotating cylinder, and the other side edge laps on the inner wall of the cylinder body; and the air flow inlet is arranged tangentially to the cylinder body and arranged in the direction same as the rotating direction of the cage-shaped rotating cylinder. The invention has the functions of high separation efficiency, and reduced discharge and energy consumption.
Description
Technical field
The invention belongs to chemical production equipment technical field, relate in particular to the concentrating and separating device for formalin.
Background technology
Can there is polymerization in formalin, generate the condensate of paraformaldehyde-white powdery linear structure in long-term storage or concentration operation process.Reaction equation is as follows:
The balanced reaction generating is subject to H
+the impact of concentration is larger, and the existence of micro-polar substances, as acid, alkali and water etc. all can accelerate the carrying out of polymerisation.Temperature also has impact, and when temperature is low, reaction is moved to the direction that generates polymer, when temperature raises to reverse movement.When temperature is very high, depolymerization generates monomer even completely, and while especially having acid to exist, heating more easily makes it be depolymerized to gaseous formaldehyde monomer.
Prepare paraformaldehyde key and be to control the product degree of polymerization, prevent the polymerization of formaldehyde height, shorten the drying and dehydrating time, improve product yield.Formalin is by being pumped in granulation tower, and process shower nozzle sprays the paraformaldehyde that cooling polymerization forms the uniform grading of the degree of polymerization about n=11.Formalin also needs through concentration before carrying out mist projection granulating entering granulation tower, and separator that prior art adopts is low, energy consumption is high.
Summary of the invention
Goal of the invention: for problem and the defect of above-mentioned existence, the invention provides a kind ofly for scraper-type separator, concentrating and separating efficiency is high.
Technical scheme: for achieving the above object, the present invention is by the following technical solutions: a kind of scraper-type separator, comprise cylindrical tube, air flow inlet, cage shape rotating cylinder and elastic scraper, the cylindrical tube center that is located at of described cage shape rotating cylinder, one side of elastic scraper is located on the circumference of cage shape rotating cylinder, and another side rides over the inwall of cylindrical shell; Described air flow inlet arranges and turns to equidirectional setting with cage shape rotating cylinder along cylindrical shell is tangential.
As preferably, described cage shape rotating cylinder comprises central shaft, connecting rod, peripheral rod and retainer plate, and described peripheral rod evenly vertically arranges around central shaft, and is connected with central shaft by many connecting rods, and described retainer plate is fixed along peripheral rod vertical direction is sheathed.
As preferably, described elastic scraper the same side is provided with the blend stop of arc, and this blend stop is from bottom to up gradually near the outward flange of scraper plate.
Beneficial effect: compared with prior art, the present invention has the following advantages: separative efficiency is high, and the function of reduction discharge and energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of scraper-type separator of the present invention;
Fig. 2 is the cross section structure schematic diagram of scraper-type separator of the present invention.
Wherein, central shaft 31, connecting rod 32, peripheral dry 33, retainer plate 34, elastic scraper 35, blend stop 36.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
As described in Figure 1, second-stage separator of the present invention (scraper-type separator) rises membrane separator for scraper-type, it comprises air flow inlet, cylindrical tube, cage shape rotating cylinder and elastic scraper, the cylindrical tube center that is located at of described cage shape rotating cylinder, one side of elastic scraper is located on the circumference of cage shape rotating cylinder, and another side rides over the inwall of cylindrical shell; Described air flow inlet arranges and turns to equidirectional setting with cage shape rotating cylinder along cylindrical shell is tangential.When formalin enters into after second-stage separator (scraper-type separator), formalin is stirred in scraper plate rotation, under the blend stop left and right of a head-on side of rotating at scraper plate, formalin centrifugal the springing up that be more prone to make progress, improve the liquid membrane of cylinder inboard wall, thereby quickening evaporation and concentration, coordinate with it be formalin send into second-stage separator (scraper-type separator) enter the setting of opening's edge separator tangential direction; Existence due to blend stop simultaneously can reflux to the raw appropriate parallel zonule of the disturbance solution of liquid miscarriage, thereby can prevent that the prepolymerization of formaldehyde is beneficial to the uniform particles degree of follow-up mist projection granulating paraformaldehyde.The present embodiment adopts another consideration of blend stop scraper plate to be: if adopt common rotating vane, there is no on the one hand liquid flow disturbance, formaldehyde easy polymerization when becoming membrane stage to carry out evaporation and concentration, blade only has the gap of outermost end portion and cylinder inboard wall at 0.5～1.5mm on the other hand, therefore formalin film forming area is less, and the efficiency of evaporation and concentration is lower.
As preferred version, second-stage separator (scraper-type separator) is divided into three absorber portions from bottom to up, and the outlet of each absorber portion bottom is communicated with and forms circulation with corresponding absorber portion top entrance by formaldehyde circulating pump, thereby greatly accelerates the evaporation and concentration of formaldehyde.
Formalin concentration after concentrated through two sections can reach 85～95%, enters in surge tank.Thereby the formaldehyde that the nitrogen that passes into 5MPa above the middle and high concentration formalin liquid level due to surge tank can keep entering in granulation tower substantially keeps constant pressure always, thereby guarantees the efficient dispersion of formaldehyde.
Claims (3)
1. a scraper-type separator, it is characterized in that: comprise cylindrical tube, air flow inlet, cage shape rotating cylinder and elastic scraper, the cylindrical tube center that is located at of described cage shape rotating cylinder, a side of elastic scraper is located on the circumference of cage shape rotating cylinder, and another side rides over the inwall of cylindrical shell; Described air flow inlet arranges and turns to equidirectional setting with cage shape rotating cylinder along cylindrical shell is tangential.
2. scraper-type separator according to claim 1, it is characterized in that: described cage shape rotating cylinder comprises central shaft, connecting rod, peripheral rod and retainer plate, described peripheral rod evenly vertically arranges around central shaft, and be connected with central shaft by many connecting rods, described retainer plate is sheathed fixing along peripheral rod vertical direction.
3. scraper-type separator according to claim 1, is characterized in that: described elastic scraper the same side is provided with the blend stop of arc, and this blend stop is from bottom to up gradually near the outward flange of scraper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346648.4A CN104128011B (en) | 2014-07-21 | 2014-07-21 | A kind of scraper-type separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346648.4A CN104128011B (en) | 2014-07-21 | 2014-07-21 | A kind of scraper-type separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104128011A true CN104128011A (en) | 2014-11-05 |
| CN104128011B CN104128011B (en) | 2016-08-24 |
Family
ID=51801023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410346648.4A Active CN104128011B (en) | 2014-07-21 | 2014-07-21 | A kind of scraper-type separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104128011B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631101A (en) * | 1992-07-16 | 1994-02-08 | Toshiba Eng & Constr Co Ltd | Dryer |
| CN201271517Y (en) * | 2008-09-19 | 2009-07-15 | 无锡力马化工机械有限公司 | Rotary type film evaporator |
| CN101732881A (en) * | 2008-11-19 | 2010-06-16 | 朱文冲 | Molecular distillation apparatus |
| CN103861304A (en) * | 2014-01-01 | 2014-06-18 | 蔡卫冲 | Scraping plate evaporator |
| CN203989906U (en) * | 2014-07-21 | 2014-12-10 | 江苏凯茂石化科技有限公司 | A kind of scraper-type separator |
-
2014
- 2014-07-21 CN CN201410346648.4A patent/CN104128011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631101A (en) * | 1992-07-16 | 1994-02-08 | Toshiba Eng & Constr Co Ltd | Dryer |
| CN201271517Y (en) * | 2008-09-19 | 2009-07-15 | 无锡力马化工机械有限公司 | Rotary type film evaporator |
| CN101732881A (en) * | 2008-11-19 | 2010-06-16 | 朱文冲 | Molecular distillation apparatus |
| CN103861304A (en) * | 2014-01-01 | 2014-06-18 | 蔡卫冲 | Scraping plate evaporator |
| CN203989906U (en) * | 2014-07-21 | 2014-12-10 | 江苏凯茂石化科技有限公司 | A kind of scraper-type separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104128011B (en) | 2016-08-24 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Scraper type separator Effective date of registration: 20170622 Granted publication date: 20160824 Pledgee: Jiangsu Wujin credit Company limited by guarantee Pledgor: Jiangsu Kaimao Chemical Technology Co., Ltd. Registration number: 2017990000474 |
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