CN201098612Y - Feeding distributor for reactor - Google Patents
Feeding distributor for reactor Download PDFInfo
- Publication number
- CN201098612Y CN201098612Y CNU2007201023025U CN200720102302U CN201098612Y CN 201098612 Y CN201098612 Y CN 201098612Y CN U2007201023025 U CNU2007201023025 U CN U2007201023025U CN 200720102302 U CN200720102302 U CN 200720102302U CN 201098612 Y CN201098612 Y CN 201098612Y
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- Prior art keywords
- distributor
- reactor
- circular
- circle
- feeding
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Abstract
A feeding distributor for a reactor comprises a feeding main pipe (5), a distributor feeding pipe (1) and a circular distributor (3). The circular distributor (3) is a circular pipe provided at the lower part thereof with two rows of uniformly distributed spraying pinholes and at the lower end with condensate discharging holes; and the spraying pinholes are respectively angulated at 0-90 DEG to the perpendicular line. The distributor feeding pipe (1) has a semicircular structure and is connected with the circular distributor (3) from two ends of the semicircle; and the circular distributor (3) is arranged at the lower part with three support members (10). The circular feeding distributor can completely eliminate the eccentric force impact and abrasion of the inlet material flow to the stirrer, and more effectively distribute materials. The circular feeding distributor is in favor of reaction progresses; and is suitable for benzoic acid hydrogenation reactor as well as gas/liquid/solid multiphase stirring reactor used in various reaction processes in chemical industry.
Description
Technical field
The utility model relates to a kind of feed distributor of reactor, in particular for the feed distributor of benzoic acid hydrogenation reactor.
Background technology
Benzoic acid hydrogenation is the important step that the SNIA method is produced caprolactam.Traditional benzoic acid hydrogenation technology is that benzene feedstock formic acid, hydrogen and catalyst (Pd/C) enter reactor from reactor lower part, flows in turbulence overflow mode, carries out hydrogenation reaction by four hydrogenation reactors successively.Gas, liquid, solid three-phase and depositing in the mixed material, wherein liquid phase benzene formic acid is 90%, and vapor phase hydrogen is 8%, and solid-phase catalyst is 2%.The benzoic acid hydrogenation reactor is the overflow stirred reactor, and built-in agitator is housed.Agitator type is double-deck impeller, and every layer has four blades, rated speed 156r/min.The reactant mixture material enters reactor by feed nozzle, carries out hydrogenation reaction under mechanical agitation and the effect of hydrogen bubbling, and reactor completely back mixture overflows, and enters the next stage reactor in the same way.Feed nozzle is the structure that is tilted to, and mixed material sprays from feed nozzle, directly is mapped to two layers of blade of agitator, shaft and axle sleeve position.Owing to mix logistics jet power height, the running of agitator has been produced periodically inhomogeneous lateral impact power, the degree that axle and axle sleeve are damaged increases, agitator service life and security decline; Long-term material sprays and washes away, and makes axle, axle sleeve, impeller, the blade wear of agitator serious, leaf abscission often occurs, axle and axle sleeve corrupted, and axle is deviate from faults such as axle sleeve and fracture, need withdraw from the material shut-down and handle, and has had a strong impact on the safety in production of device.
Chinese patent CN2848348Y discloses the solid dielectric distributor in a kind of fine powder fluidizing reactor, be provided with charging house steward and distributor straight tube, have the notch of distribution material on the arm, be used to solve petrochemical industry fluidizing reactor solid dielectric problem pockety, but can not satisfy the distribution and the service condition of overflow stirred reactor gas, liquid, solid three phase materials.
Summary of the invention
The purpose of this utility model provides a kind of feed distributor of reactor, be used for three-phase overflow agitated bed reactor, eliminate inlet feed stream fully the eccentric force of agitator is impacted and wearing and tearing, more efficiently dispersed material simultaneously helps the carrying out of hydrogenation reaction.
The utility model is made up of charging house steward, distributor feed pipe and circle distributor.Circle distributor is made with round steel pipe, and the equally distributed aperture of two rows is arranged at the bottom, is used for spraying of material.Hole count determines that according to reactor size and inlet amount the number of inner ring and cycle hole can be the same or different.The diameter in hole is also determined according to load.For making the pressure distribution in the distributor even, material enters circle distributor from two, and the distributor feed pipe is designed to the semi-circular structure concentric with circle distributor, is connected with circle distributor from two of semicircle.Distributor feed pipe and circle distributor are the structure that fuses.For ease of in reactor, installing, also distributor feed pipe and circle distributor can be divided into multistage, the utility model is divided into three parts with feed pipe and distributor, connects with flange between each several part.
The material spray-hole is positioned at the bottom of circle distributor, and the position of opening of two row's spray-holes is 0 °～90 ° with angle α, the β of the straight line that lets droop.For material is distributed uniformly, minimizing is washed away reactor bottom, and spray-hole is downward-sloping direction, and the preferred α of the utility model, β angle are 30 °～60 °.The circle distributor bottom has drain hole, condensate drain when being convenient to stop work the material returned.Feed distributor is positioned at the bottom of reactor, by the charging house steward, is connected on the feeding line that welds together with wall of reactor.For preventing vibrations and be subjected to displacement that 3 support members are installed in the bottom of circle distributor, the lower end of support member is connected reactor bottom.
Compare with the charging facility of existing overflow stirred reactor, the utility model has been eliminated impact and the wearing and tearing of inlet feed stream to axle, axle sleeve, impeller and the blade of agitator fully, reduce and avoid stirring system to break down, improved the distribution situation of inlet feed simultaneously, make the more even of material dispersion, turbulence is more violent, helps the contact of gas, liquid, solid three-phase, fast reaction speed.The utility model is applicable to the benzoic acid hydrogenation reactor of caprolactam production, also is applicable to the solid heterogeneous stirred reactor of gas-liquid of the various courses of reaction of chemical field.
Description of drawings
Fig. 1 is a vertical view of the present utility model;
Fig. 2 is the A-A view among Fig. 1
Fig. 3 is the B-B view among Fig. 1
Fig. 4 is the utility model installation site figure.
Fig. 5 is the utility model support member schematic diagram.
The specific embodiment
Below in conjunction with specific embodiment the utility model is further described.
By shown in Figure 1, the utility model is made up of charging house steward 5, distributor feed pipe 1 and circle distributor 3.Circle distributor 3 usefulness diameters are that the stainless steel tube of 89mm is made, and the diameter of circle distributor 3 is 527mm.Distributor feed pipe 1 is the semicircular structure concentric with circle distributor 3, and the two ends symmetric position of semicircle is connected with circle distributor 3.Distributor feed pipe 1 and circle distributor 3 integral body are divided into three parts, connect with flange 2,4 between each several part.Charging house steward 5 one ends are connected with distributor feed pipe 1, and charging house steward 5 the other end is equipped with flange 6, are connected with the feeding line flange that links to each other with reactor.Circle distributor 3 bottoms have two row's apertures, are used for spraying of material.As shown in Figure 2, spray-hole 7 and vertical line angle at 45.Spray-hole 7 evenly distributes, and outer ring many inner rings of hole count hole count is few, is determined the diameter in hole count and hole by feed size.The injection hole count and the aperture of circle distributor 3 see Table 1 in 4 reactors of present embodiment.
The hole count and the aperture of table 1 distributor spray-hole
| First reactor | Second reactor | The 3rd reactor | The 4th reactor | |
| The inner ring hole count | 30 | 26 | 30 | 28 |
| The empty number in outer ring | 42 | 30 | 42 | 34 |
| Aperture (mm) | 12 | 12 | 10 | 10 |
The bottom of circle distributor 3 is provided with 4 drain holes 8, and the aperture is identical with the diameter of spray-hole, and cross is symmetrical arranged.As shown in Figure 2, drain hole 8 perforate vertically downward, condensate drain when being convenient to stop work the material returned prevents that material from stockpiling in distributor, stop up spray-hole.
As shown in Figure 4, circle distributor is installed in the bottom of reactor 9, and the flange 6 by charging house steward 5 is connected with feeding line.Three support members 10 are arranged at the bottom of circle distributor 3, see Fig. 4, Fig. 5.The lower end of support member 10 is welded on the bottom of reactor 9.
Claims (5)
1, a kind of feed distributor of reactor, form by charging house steward (5), distributor feed pipe (1) and circle distributor (3), it is characterized in that: circle distributor (3) is a ring-shaped round pipe, two row's equally distributed jet apertures (8) are arranged at the bottom of circle distributor (3), distributor feed pipe (1) is and the concentric semi-circular structure of circle distributor (3) that distributor feed pipe (1) is connected with circle distributor (3) from two of semicircle.
2, feed distributor according to claim 1 is characterized in that: distributor feed pipe (1) and circle distributor (3) are divided into three parts, connect with flange (2,4) between each several part.
3, feed distributor according to claim 2 is characterized in that: the spray-hole (7) of circle distributor (3) bottom is 0 °～90 ° with angle α, the β of the straight line that lets droop.
4, annular feed distributor according to claim 1 is characterized in that: there is condensate drain drain hole (8) lower end of circle distributor (3).
5, according to each described feed distributor in the claim 1 to 4, it is characterized in that: three support members (10) are arranged at the bottom of circle distributor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201023025U CN201098612Y (en) | 2007-08-22 | 2007-08-22 | Feeding distributor for reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201023025U CN201098612Y (en) | 2007-08-22 | 2007-08-22 | Feeding distributor for reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201098612Y true CN201098612Y (en) | 2008-08-13 |
Family
ID=39935141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201023025U Expired - Lifetime CN201098612Y (en) | 2007-08-22 | 2007-08-22 | Feeding distributor for reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201098612Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635563A (en) * | 2011-06-22 | 2014-03-12 | 株式会社神户制钢所 | Gravitational settling tank and ashless coal manufacturing method |
| CN104492353A (en) * | 2014-12-11 | 2015-04-08 | 中国核动力研究设计院 | Water seal annular porous uniform gas allocation system for inflammable gas |
| CN111676056A (en) * | 2020-06-19 | 2020-09-18 | 中耐工程科技有限公司 | Residual oil hydrogenation reactor with three-dimensional grid feeding structure, residual oil hydrogenation system containing reactor and residual oil hydrogenation process |
| CN115385374A (en) * | 2022-08-26 | 2022-11-25 | 神华准能资源综合开发有限公司 | Preparation device and preparation method of gallium trichloride |
-
2007
- 2007-08-22 CN CNU2007201023025U patent/CN201098612Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635563A (en) * | 2011-06-22 | 2014-03-12 | 株式会社神户制钢所 | Gravitational settling tank and ashless coal manufacturing method |
| KR101559226B1 (en) * | 2011-06-22 | 2015-10-13 | 가부시키가이샤 고베 세이코쇼 | Gravitational settling tank and ashless coal manufacturing method |
| CN103635563B (en) * | 2011-06-22 | 2015-11-25 | 株式会社神户制钢所 | The manufacture method of gravity settling tank and ashless coal |
| US9315751B2 (en) | 2011-06-22 | 2016-04-19 | Kobe Steel, Ltd. | Gravitational settling tank and method for producing ash-free coal |
| CN104492353A (en) * | 2014-12-11 | 2015-04-08 | 中国核动力研究设计院 | Water seal annular porous uniform gas allocation system for inflammable gas |
| CN111676056A (en) * | 2020-06-19 | 2020-09-18 | 中耐工程科技有限公司 | Residual oil hydrogenation reactor with three-dimensional grid feeding structure, residual oil hydrogenation system containing reactor and residual oil hydrogenation process |
| CN115385374A (en) * | 2022-08-26 | 2022-11-25 | 神华准能资源综合开发有限公司 | Preparation device and preparation method of gallium trichloride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080813 |
|
| CX01 | Expiry of patent term |