CN205412478U - Machinery of underpressure distillation in -process removes foam device - Google Patents
Machinery of underpressure distillation in -process removes foam device Download PDFInfo
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- CN205412478U CN205412478U CN201521065228.5U CN201521065228U CN205412478U CN 205412478 U CN205412478 U CN 205412478U CN 201521065228 U CN201521065228 U CN 201521065228U CN 205412478 U CN205412478 U CN 205412478U
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- cartridge filter
- barrel
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- foam
- baffle
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Abstract
The utility model relates to a machinery of underpressure distillation in -process removes foam device, including barrel, bubble tube way, cartridge filter and baffle etc. The cartridge filter sets up in the barrel, and the last baffle that is provided with the slope of filter cylinder inner wall is covered on the barrel and is provided with the gas vent, bubble tube way and back flow are connected with stills on the barrel. The cartridge filter is network structure, fixes on last shrouding, passes through flange joint with the barrel. Baffle quantity is 3~6, and the slant becomes 15~30 with the cartridge filter central line down. Through the flash trapping stage, gaseous and cartridge filter bumps, breaks the gas -liquid phase separation under the impact effect, rethread grade separation: gas through the flash trapping stage still can carry the tiny particle liquid drop, thereby the gaseous foam that carries is further detached to gaseous ascending bumping with the baffle under the effect of pressure differential. During the gaseous phase of separation continue to rise got into the condenser, the liquid phase got into the back flow and flows back to in the stills because of the effect of gravity descends, two -stage separation can eliminate the foam by the maxmizing.
Description
Technical field
This utility model belongs to field of mechanical technique, particularly relates to a kind of machinery Despumation device；It is applied to the Despumation device in binding agent resorcinol-formaldehyde modification resin (KTR) vacuum distillation process.
Background technology
The boiling point of liquid reduces with the reduction of external pressure, and in KTR preparation process, the recovery of toluene uses decompression distillation procedure, so can not only save the energy, and distill out product at a lower temperature, Disassembling Products can be avoided, container, also without high temperature resistant, reduces cost.But in still-process, along with the rising of temperature, the material in distillating still quickly seethes with excitement, and produces substantial amounts of foam.The generation of foam, can cause serious entrainment, and the entrainment with steam produced in still foam and entered in condenser, and along with the carrying out exchanged with cooling water heat, foam crystallization can cause the knot wall that heat exchanger tube is serious, affects the recycling of toluene.In industry, in order to eliminate the impact that this entrainment produces, there are two kinds of methods, chemistry froth breaking and mechanical defoaming.Chemistry froth breaking also exists secondary environmental pollution, expensive, the shortcomings such as defoaming effectiveness is low.Mechanical defoaming can utilize continuously, gets rid of the pollution to product.
Summary of the invention
The purpose of this utility model is while guarantee system circulating load, again can the adverse effect of maximized reduction entrainment, be unlikely to recovery is impacted, it is ensured that the product purity of technique and yield.For reaching above-mentioned purpose, this utility model provides the mechanical Despumation device in vacuum distillation process；Well being applied in binding agent KTR vacuum distillation process.
Concrete technical scheme is as follows:
Mechanical Despumation device in a kind of vacuum distillation process, including cylinder, foam pipe, cartridge filter, dividing plate, return duct and air vent；Cartridge filter is arranged in cylinder, and cartridge filter inwall is provided with the dividing plate of inclination, and cylinder top cover is provided with air vent；On cylinder, foam pipe and return duct are connected with distillating still.
Above-mentioned cartridge filter is network structure, is fixed on upper sealing plate, passes through Flange joint with cylinder.
Aforementioned barriers quantity is 3～6 pieces, becomes 15 °～30 ° with cartridge filter centrage obliquely.
The utility model has the advantage of: reach to maximize foam removal by two-stage separation energy.Flash trapping stage: gas collides with cartridge filter, ruptures under the effect of impact force, and liquid phase separates.The second-order separation: through the gas of flash trapping stage, also can carry little particle droplet, and under the effect of pressure reduction, gas rising collides with dividing plate thus removes the foam entrained by gas further.The gas phase separated continues to ascend in condenser, and liquid phase flows back in distillating still because the effect of gravity lowers into return duct.Separating in the case of ensureing system stability through two-stage in binding agent KTR vacuum distillation process, toluene recovery product quality, yield are all protected.
Accompanying drawing explanation
Fig. 1: KTR vacuum distillation process machinery Despumation device scheme of installation.
Fig. 2: machinery Despumation device schematic diagram.
Wherein: 1 is cylinder；2 is foam pipe；3 is cartridge filter；4 is dividing plate；5 is liquid refluxing opening, and 6 is air vent, and 7 is upper sealing plate, and 8 is flange.
Detailed description of the invention
With reference to description Fig. 1 and Fig. 2, Despumation device of the present utility model is described in detail below.
Mechanical Despumation device in vacuum distillation process includes cylinder 1, foam pipe 2, cartridge filter 3, dividing plate 4, return duct 5, air vent 6；Its cartridge filter 3 is arranged in cylinder 1, and cartridge filter inwall is provided with the dividing plate of inclination, and cylinder top cover is provided with air vent；On cylinder, foam pipe 2 and return duct 5 are connected with distillating still.Cartridge filter 3 is network structure, is fixed on upper sealing plate 7, is connected by flange 8 with cylinder 1.Dividing plate 4 quantity 3～6 pieces, become 15 °～30 ° obliquely with cartridge filter centrage.
Described Despumation device uses stainless steel, and the connected mode of distillating still: foam pipe 2 and distillating still gas outlet N1 Flange joint, liquid refluxing opening 5 and Still pot liquor import N2 Flange joint.Cartridge filter 3 is metallic netted structural, is fixed on upper sealing plate 7, is connected by flange 8 with cylinder 1, and it is convenient that the advantage of this structure is to change cartridge filter；Dividing plate 4 is welded on cartridge filter 3 sidewall, quantity 3～6 pieces, becomes 15 °～30 ° with cartridge filter centrage obliquely；Air vent 6 is directly opened on upper sealing plate 7.
In binding agent KTR vacuum distillation process, distillating still gas enters in Despumation device by the air inlet of foam pipe 2, and collide with cartridge filter 3, gas enters inside cartridge filter 3 after clashing into, continue to collide with dividing plate 4, gas enters into next process through air vent 6, and liquid returns in tower reactor along barrel through liquid refluxing opening 5, finally realizes being kept completely separate of liquid phase.Applying this Despumation device, foam removal efficiency to reach 99.1% in KTR vacuum distillation process, the organic efficiency of toluene improves 30%.
The utility model has the advantage of: separating in the case of ensureing system stability through two-stage, toluene recovery product quality, yield are all protected.
Claims (3)
1. the mechanical Despumation device in vacuum distillation process, structure includes cylinder, foam pipe, cartridge filter, dividing plate, return duct and air vent；It is characterized in that cartridge filter is arranged in cylinder, cartridge filter inwall is provided with the dividing plate of inclination, cylinder top cover is provided with air vent；On cylinder, foam pipe and return duct are connected with distillating still.
2. device as claimed in claim 1, is characterized in that cartridge filter is network structure, is fixed on upper sealing plate, passes through Flange joint with cylinder.
3. device as claimed in claim 1, is characterized in that dividing plate quantity is 3～6 pieces, becomes 15 °～30 ° with cartridge filter centrage obliquely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065228.5U CN205412478U (en) | 2015-12-17 | 2015-12-17 | Machinery of underpressure distillation in -process removes foam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065228.5U CN205412478U (en) | 2015-12-17 | 2015-12-17 | Machinery of underpressure distillation in -process removes foam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205412478U true CN205412478U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521065228.5U Active CN205412478U (en) | 2015-12-17 | 2015-12-17 | Machinery of underpressure distillation in -process removes foam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205412478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116328470A (en) * | 2022-12-27 | 2023-06-27 | 广州旭璟科技有限公司 | Gas-liquid separator suitable for negative pressure device |
-
2015
- 2015-12-17 CN CN201521065228.5U patent/CN205412478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116328470A (en) * | 2022-12-27 | 2023-06-27 | 广州旭璟科技有限公司 | Gas-liquid separator suitable for negative pressure device |
| CN116328470B (en) * | 2022-12-27 | 2023-11-10 | 广州旭璟科技有限公司 | Gas-liquid separator suitable for negative pressure device |
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