CN2542334Y - Vortex foam-removing device - Google Patents
Vortex foam-removing device Download PDFInfo
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- CN2542334Y CN2542334Y CN 02229278 CN02229278U CN2542334Y CN 2542334 Y CN2542334 Y CN 2542334Y CN 02229278 CN02229278 CN 02229278 CN 02229278 U CN02229278 U CN 02229278U CN 2542334 Y CN2542334 Y CN 2542334Y
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- cylinder
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- separator
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Abstract
The utility model discloses a cyclone foam elimination device that is the key part of a vacuum black liquid foam elimination system, and is composed of a cyclone separator, an expansion chamber and a separating plate. The crucial part is that a built-in spiral baffle is arranged in the cylinder of the separator, the rotating direction of the built-in spiral baffle is the same with the tangential direction of a foam inlet. The upper part of a cone is connected with the separator cylinder, a black liquid outlet is water sealed typed, and an air outlet begins at the bottom of the built-in spiral baffle, then goes through the separating plate and is connected with the expansion chamber. The separating plate is welded between the cyclone separator and the expansion chamber and is only connected with the air outlet, which is in the top cover of the expansion chamber. The baffle is a cone and is arranged between the top cover and an air inlet, and the black liquid outlet is positioned in the expansion cylinder at the bottom of the expansion chamber. The utility model has the flowing advantages of eliminating leftover foams rapidly and efficiently after the elimination of foam eliminators, reducing space occupation of equipments, and saving installation cost.
Description
Technical field:
The utility model relates to field of environment protection, more specifically relates to wastewater treatment, is paper waste---the key device of foam-removing system for black liquid.
Background technology:
Paper industry is closely bound up with the development and national economy and the people's living standard and cultural and educational level.In general, along with improving constantly of life and cultural and educational level, required paper using amount also constantly increases, and is also more and more higher to the requirement of its description.Raw materials used wood type and the careless class of mainly containing of papermaking, relatively Chang Yong pulping process is a soda pulping process, this method is earlier paper making raw material timber or grass as raw material to be cut into sheet or pipe nipple, deliver in the special digesting apparatus, add a certain amount of caustic soda after the HTHP boiling, with the lignin stripping in the raw material, keep the fiber of high-quality.Paper-making industry can produce a large amount of waste liquids in above-described pulping process, these waste liquid colors are black, therefore is referred to as black liquor.Contain a certain amount of residual alkali and leachable (being solid content) in the black liquor, if directly the discharging meeting causes great pollution to environment.The processing removal process of black liquid is called alkali and reclaims, it is exactly earlier with vacuum pulp washing machine or horizontal belt wash engine that alkali reclaims, black liquor is extracted from paper pulp, and after with evaporimeter black liquor being concentrated to certain concentration, deliver in the special alkali recovery boiler and burn, the solid content in the black liquor is burnt, and the fused mass that will contain residual alkali collects, add lime slurry and carry out the causticization processing, make it to be reduced to active alkali and recycle.
In the black liquid extraction process that the above alkali reclaims, owing to have residual alkali, lignin, short fiber and other impurity in the black liquor, viscosity is bigger, under conveying and extraneous the stirring, very easily forms a large amount of foams in black ash liquor storage.To this problem, thoroughly do not solve as yet so far.Now Chang Yong method is to adopt the black liquor defoamer to be installed on black ash liquor storage top to add vavuum pump and handle.The foam that this method can partly solve black ash liquor storage top leaks, but because the effect of black liquor defoamer is not ideal enough, can not solve the black liquor foam problem that disappears at all, and a large amount of black liquor foams that vacuum pump outlet is discharged still flow into trench, have caused secondary environmental pollution.In addition, use vavuum pump need consume a large amount of cooling waters, the energy consumption height, noise is big, and therefore, the foam that low-consumption high-efficiency ground is eliminated in the black liquor is the key issue that paper waste is handled always.
The efficient cyclone demister is a key equipment in the efficient energy-saving vacuum foam-removing system for black liquid.Its underpart is a cyclone separator, and top is flash chamber.The effect of cyclone separator is the difference of utilizing between foam and the air specific weight, and uses centrifugal force that it separately and with foam is abolished.The effect of flash chamber is the sudden enlargement that utilizes flow area, and flowing velocity is reduced suddenly, thereby heavier foam is settled down by deadweight, to reach the purpose of foam removal.
Summary of the invention:
The purpose of this utility model provides the whirlwind Despumation device, this device is the critical component of vacuum foam-removing system for black liquid, utilize the difference between foam and the air specific weight, with centrifugal force it separately and with foam is abolished, and utilize the sudden enlargement of flow area, flowing velocity is reduced suddenly, thereby heavier foam is settled down by deadweight, to reach the purpose of foam removal.This device can be eliminated the foam on black ash liquor storage top fast and efficiently.
In order to achieve the above object, the utility model adopts following technical scheme:
The whirlwind Despumation device is by cyclone separator, flash chamber, form with dividing plate, the foam inlet tube of cyclone separator and separator cylinder inwall tangentially weld, built-in helical baffle places the separator cylinder, its direction of rotation is tangentially identical with foam inlet, the top of cone is connected with the separator cylinder, the bottom is connected with black liquid outlet, black liquid outlet is a hydrolock, air outlet slit is positioned at the centre of separator cylinder, bottom from built-in helical baffle, pass dividing plate, communicate with flash chamber, dividing plate is welded on the centre of cyclone separator and flash chamber, has only air outlet slit to communicate, the top blind flange of flash chamber has air outlet slit, and be welded on the flash chamber cylinder, air intake is the air outlet slit of cyclone separator, and baffle plate is taper, place between top blind flange and the air intake, black liquid outlet places on the flash chamber cylinder of flash chamber bottom.
The diameter of above-mentioned separator cylinder is 6～15 times of foam inlet pipe diameter, and it highly is 0.6～2.5 times of diameter.
The pitch of above-mentioned built-in helical baffle and width are 1.1～1.5 times of foam inlet pipe diameter.
The height of above-mentioned cone is 1～3 times of separator cylinder height.
The height of above-mentioned flash chamber cylinder is 0.6-1.5 a times of flash chamber cylinder diameter.
The diameter of above-mentioned black liquid outlet is 50～200 millimeters.
The utlity model has following advantage: owing to increased helical baffle on cyclone separator, the eddy flow downward to the air of rotation at a high speed produces guide functions, under the effect of baffle plate, is unlikely the collision that produces between opposite rotation direction air-flow and turbulization and turbulent flow.Strengthened shearing and collision effect that the friction between black liquor foam and cylindrical shell and baffle plate produces, under the guide functions that helical baffle produces, made the easier fragmentation of black liquor foam and flow to black liquid outlet simultaneously.Cyclone separator and flash chamber are unified into one, have reduced the floor space of equipment, saved mounting cost.
Description of drawings:
Fig. 1 is the structural representation of whirlwind Despumation device.
Fig. 2 is the vertical view of whirlwind Despumation device.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
As seen from Figure 1, Figure 2, the whirlwind Despumation device is made up of cyclone separator 7, flash chamber 1 and dividing plate 3.
Cyclone separator 9 is made up of separator cylinder 7, cone 6, helical baffle 5, foam inlet, black liquid outlet and air outlet slit.The diameter of separator cylinder 7 is generally 6～15 times of foam inlet pipe diameter, and it highly is 0.6～2.5 times of separator cylinder 7 diameters; Foam inlet pipe and cylinder inwall tangentially weld, and built-in helical baffle 5 places cylinder, and its pitch 4 and width are 1.1～1.5 times of foam inlet diameter, and its direction of rotation is identical with the direction that the foam inlet tangentially enters cylinder.
The upper diameter of cone 6 is identical with cylinder 7, and is connected with cylinder 7, and lower diameter is identical with black liquid outlet, and is connected with black liquid outlet, and it highly is 1～3 times of cylinder 7 diameters.
Black liquid outlet is a hydrolock 8, and diameter is 0.3～0.8 times of foam inlet diameter, and is connected with the bottom of cone; Air outlet slit places the centre of cylinder 7, and its size is 1.1～1.5 times of foam inlet diameter, from the bottom of built-in helical baffle, passes dividing plate 3, communicates with flash chamber 1.
Dividing plate 3 separates top flash chamber 1 and bottom cyclone separator 9, and the centre has only air outlet slit to communicate, and is welded on the cylinder 7.Flash chamber 1 is made up of top cylinder body 7, top blind flange, air outlet slit, central dividing plate, air intake, baffle plate 2 and black liquid outlet.Top cylinder body diameter is identical with bottom cylinder diameter, its highly be cylinder 7 diameters 0.6-1.5 doubly; Top blind flange 10 has air outlet slit, and is welded on the cylinder 7, and the upper air outlet diameter is identical with the diameter of bottom air intake 11, and air intake 11 is the air outlet slit of bottom cyclone separator 9.Baffle plate 2 is taper, places between top blind flange 10 and the air intake, and its diameter is greater than air intake, and less than cylinder 7 diameters, black liquid outlet places on the cylinder of flash chamber 1 bottom, and its diameter is the 50-200 millimeter.
The utility model is the critical component of vacuum foam-removing system for black liquid, act as and further abolish the black liquor foam that is difficult to eliminate, its workflow and principle are: a large amount of air of sending here from high pressure positive blower wind are carrying that the black liquor foam is tangential from the foam inlet along barrel to enter this device bottom cyclone separator at a high speed secretly, and produce at a high speed and rotate.Under action of centrifugal force, the black liquor foam that proportion is bigger can be close to the barrel rotation, produces strong shearing and collision, has destroyed the balance of foam surface tension force, reaches brokenly the purpose of foam.The built-in spiral that is rotated down plays guiding and adds shearing and collision effect between macrofoam, has strengthened the effect of foam removal.When the air of above high speed rotation arrives cone, because cone has certain inclination angle, the continuous lighter air of some proportion of meeting is formed centrally eddy flow in being reflected in the rotary course, because the lower part outlet of cone is very little and carried out water seal, have only black liquor behind bigger foam of proportion and the broken foam can be at action of centrifugal force lower edge cone eddy flow and final down by deadweight in bottom black liquid outlet inflow black liquor storagetank.Its air and be mixed in airborne fine foam then all reflexed to cone in be formed centrally eddy flow and enter in the flash chamber of top by air outlet slit.Enter gas behind the flash chamber under the effect of baffle plate, change direction and along rising on the annular gap of baffle plate and cylinder.Since the actual internal area sudden enlargement of air after entering flash chamber manyfold, speed reduces suddenly, make to be clipped in airborne fine foam and to have an opportunity to drop on the dividing plate by getting off, and flow in the black ash liquor storage by the black liquid outlet of opening on dividing plate top from resedimentation.The imperceptible foam of air and minute quantity then enters in the atmosphere by the air outlet slit on flash chamber top.
Claims (6)
1, the whirlwind Despumation device, it is characterized in that, this device is by cyclone separator (9), flash chamber (1), and dividing plate (3) is formed, the foam inlet tube of cyclone separator (9) and separator cylinder (7) inwall tangentially weld, built-in helical baffle (5) places separator cylinder (7), its direction of rotation is tangentially identical with foam inlet, the top of cone (6) is connected with separator cylinder (7), the bottom is connected with black liquid outlet, black liquid outlet is hydrolock (8), air outlet slit is positioned at the centre of separator cylinder (7), bottom from built-in helical baffle (5), pass dividing plate (3), communicate with flash chamber (1), the centre of dividing plate (3) welding cyclone separator (9) and flash chamber (1), have only air outlet slit to communicate, the top blind flange (10) of flash chamber (1) has air outlet slit, and be welded on flash chamber (1) cylinder, air intake (11) is the air outlet slit of cyclone separator (9), baffle plate (2) is taper, place between top blind flange (10) and the air intake (11), black liquid outlet places on flash chamber (1) cylinder of flash chamber (1) bottom.
2, whirlwind Despumation device according to claim 1 is characterized in that, described separator cylinder (7), its diameter are 6～15 times of foam inlet diameter, and it highly is 0.6～2.5 times of diameter.
3, whirlwind Despumation device according to claim 1 is characterized in that, the pitch of described built-in helical baffle (5) and width are 1.1～1.5 times of foam inlet diameter.
4, whirlwind Despumation device according to claim 1 is characterized in that, described cone height is 1～3 times of separator cylinder diameter.
5, whirlwind Despumation device according to claim 1 is characterized in that, the height of described separator cylinder is 0.6-1.5 a times of cylinder diameter.
6, whirlwind Despumation device according to claim 1 is characterized in that, described black liquid outlet diameter is 50～200 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229278 CN2542334Y (en) | 2002-04-30 | 2002-04-30 | Vortex foam-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229278 CN2542334Y (en) | 2002-04-30 | 2002-04-30 | Vortex foam-removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2542334Y true CN2542334Y (en) | 2003-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02229278 Expired - Fee Related CN2542334Y (en) | 2002-04-30 | 2002-04-30 | Vortex foam-removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2542334Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172439A (en) * | 2011-03-15 | 2011-09-07 | 新兴能源装备股份有限公司 | Hydrocyclone defoamer and defoaming method thereof |
| CN102179110A (en) * | 2011-03-16 | 2011-09-14 | 江苏纵横浓缩干燥设备有限公司 | Efficient defoaming device for vapor-liquid separator |
| CN103111379A (en) * | 2013-03-15 | 2013-05-22 | 南京能益节能科技有限公司 | Cyclone separator with good vapor-liquid separation effect |
| CN103128007A (en) * | 2013-03-15 | 2013-06-05 | 南京能益节能科技有限公司 | Vapor-liquid cyclone separator |
| CN103128008A (en) * | 2013-03-15 | 2013-06-05 | 南京能益节能科技有限公司 | Cyclone separator for separating vapor-liquid mixture |
| CN103469233A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Defoaming device and method for cleaning cold-rolling strip steel |
| CN104148197A (en) * | 2014-09-05 | 2014-11-19 | 吉首大学 | Cyclone-type mineral floating and defoaming device |
| CN104344612A (en) * | 2014-10-20 | 2015-02-11 | 新昌县宏宇制冷有限公司 | Secondary separation type gas-liquid separator |
| CN104454553A (en) * | 2014-12-02 | 2015-03-25 | 肖琼 | Defoaming tank of foam pump |
-
2002
- 2002-04-30 CN CN 02229278 patent/CN2542334Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172439A (en) * | 2011-03-15 | 2011-09-07 | 新兴能源装备股份有限公司 | Hydrocyclone defoamer and defoaming method thereof |
| CN102179110A (en) * | 2011-03-16 | 2011-09-14 | 江苏纵横浓缩干燥设备有限公司 | Efficient defoaming device for vapor-liquid separator |
| CN103111379A (en) * | 2013-03-15 | 2013-05-22 | 南京能益节能科技有限公司 | Cyclone separator with good vapor-liquid separation effect |
| CN103128007A (en) * | 2013-03-15 | 2013-06-05 | 南京能益节能科技有限公司 | Vapor-liquid cyclone separator |
| CN103128008A (en) * | 2013-03-15 | 2013-06-05 | 南京能益节能科技有限公司 | Cyclone separator for separating vapor-liquid mixture |
| CN103469233A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Defoaming device and method for cleaning cold-rolling strip steel |
| CN103469233B (en) * | 2013-09-06 | 2016-06-29 | 鞍钢股份有限公司 | A kind of cold-strip steel cleaning defoaming device and method |
| CN104148197A (en) * | 2014-09-05 | 2014-11-19 | 吉首大学 | Cyclone-type mineral floating and defoaming device |
| CN104344612A (en) * | 2014-10-20 | 2015-02-11 | 新昌县宏宇制冷有限公司 | Secondary separation type gas-liquid separator |
| CN104344612B (en) * | 2014-10-20 | 2017-01-18 | 新昌县宏宇制冷有限公司 | Secondary separation type gas-liquid separator |
| CN104454553A (en) * | 2014-12-02 | 2015-03-25 | 肖琼 | Defoaming tank of foam pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |