CN2698833Y - Hydraulic head box - Google Patents
Hydraulic head box Download PDFInfo
- Publication number
- CN2698833Y CN2698833Y CN 200420022960 CN200420022960U CN2698833Y CN 2698833 Y CN2698833 Y CN 2698833Y CN 200420022960 CN200420022960 CN 200420022960 CN 200420022960 U CN200420022960 U CN 200420022960U CN 2698833 Y CN2698833 Y CN 2698833Y
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- pulp
- nozzle
- pulp distributor
- weir
- distributor
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Abstract
The utility model relates to a hydraulic head box. The technical problem that the utility model is to resolve is to provide with a hydraulic head box which is adapted to the low speed of a vehicle, with a good effect of homogeneous pulp, a small box and high efficiency. The pulp inlet of the hydraulic head box is provided with a pulp in conical tube and a pulp distributor, and a base is arranged at the bottom of the hydraulic head box, with a box body is provided with a weir cavity, a front wall plate, a rear wall plate and bilateral wall plates. A pulp spout is provided with a setting device of the top lip plate, a top lip plate and a bottom lip plate, with a nozzle being formed by the top lip plate and the bottom lip plate. The essential structure is that the pulp distributor is at an angle of 90 degrees +-30 degrees to the nozzle; a sealed weir cavity is provided between the pulp distributor 2 and the nozzle 10; one side of the cavity close to the pulp distributor is big, and the cavity contracts from the big side to the strait nozzle by transition. The utility model can be applied to paper machines in paper making industry.
Description
Technical field
The utility model relates to a mortar distributor of paper machine, especially a kind of waterpower formula flow box.Be applicable to the paper industry paper machine.
Background technology
Flow box is as an equipment of paper machine, and its effect is that the wet end to paper machine provides full width homodisperse slurry stream.Therefore require flow box to guarantee the isobaric constant speed of full width slurry stream on the one hand, also need to make slurry stream to be in the microturbulent motion state on the other hand, disperse, the slurry stream of ejection is evenly distributed to guarantee slurry suspension.The low speed flow box pattern of manufacturing paper with pulp of at present domestic adaptation has following several, a kind of is the flashboard type flow box, as shown in Figure 2, its homogenate mechanism is that the contraction diffusion that slurry stream stitches by the plate group makes slurry produce tubulence energy, this apparatus structure is simple, and shortcoming is that the casing volume is big, and slurry stream Turbulent Scales is low, slurry homogenate weak effect is so can only be used for the low speed of a motor vehicle (about 100 meters/minute).Another kind is the doctor-roll flow box, and as shown in Figure 3, its homogenate mechanism is that the contraction diffusion that slurry flows by the turnover aperture makes slurry produce turbulence, at present domestic more generally use.This apparatus structure is simple, and slurry stream Turbulent Scales is medium, and the homogenate effect is better, can adapt to the medium speed of a motor vehicle (120-400 rice/minute).Shortcoming is when hanging down the speed of a motor vehicle because roller surfaces, make stock pump enter air, thus should not be used for the low speed of a motor vehicle, and use the flow box tank-volumes of a plurality of (more than two) doctor-roll bigger, slurry flows the phenomenon of rolling, flow in case, wadding is poly-more easily to make slurry.Therefore be not suitable for higher slurry of concentration and long fiber.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of low speed of a motor vehicle, homogenate is effective, casing is little, efficient is high waterpower formula flow box of adapting to is provided.
The technical scheme that the utility model adopted is: waterpower formula flow box, stock inlet has into slurry Taper Pipe, pulp distributor, base is arranged at the bottom, casing is provided with chamber, weir and front wallboard, rear wall plate and both sides wallboard, mouth spray has top lip of slice guiding mechanism, top lip of slice, aulaeum, labial lamina constitutes nozzle up and down, its design feature is that pulp distributor becomes 90 ° ± 30 ° layouts with nozzle, be provided with an airtight chamber, weir between pulp distributor 2 and the nozzle 10, its cavity is bigger by one of pulp distributor, and dwindles transition gradually until narrow nozzle.
Described pulp distributor is positioned at the casing top.
It is trapezoidal that chamber, described weir is polygon.
Beneficial effect is: the utility model has overcome that flashboard type flow box, doctor-roll flow box are low at pulp flow, concentration is high, can not paper pulp be stirred with doctor-roll all even, and the not enough again defective of orifice plate turbulent flow generator effect of tubular-shaped structures.On design theory, used the waterpower formula to send the new ideas of slurry, replaced the doctor-roll behind the cloth slurry orifice plate, and make slurry stream in course of conveying, obtain neat and well spaced and produce the poly-microturbulent motion that prevents to wad a quilt with cotton, and owing to adopt chamber, airtight weir to carry, can prevent that paper pulp stops up in the flow box, keep the paper pulp motion of portion within it when having paper pulp to pass through flow box simultaneously, provide good condition for obtaining good horizontal cloth slurry and evenness.Adapt to high concentration, the low speed of a motor vehicle in addition, also has the advantage that casing is little, efficient is high.
Description of drawings
Fig. 1 is the structure chart of the utility model embodiment.
Fig. 2 is the structural representation of the utility model background technology flashboard type flow box.
Fig. 3 is the structural representation of the utility model background technology homogenate roll-type flow box.
The specific embodiment
As shown in Figure 1, the flow box of present embodiment is located on the base 3, into slurry Taper Pipe 1 is arranged at the stock inlet place, its outlet connects pulp distributor 2, there is chamber, weir 4 to be connected between the outlet of pulp distributor 2 and the nozzle 10, the below of nozzle is an aulaeum 8, and the top is a top lip of slice 7, and top lip of slice guiding mechanism 9 also is equipped with on top lip of slice top.The casing of base 3 tops is provided with front wallboard 5, rear wall plate 6 and both sides wallboard, in the middle of the casing is vertical pulp distributor 2, and the chamber, weir 4 that is communicated with pulp distributor is horizontally disposed with, and being shaped as of chamber, weir is polygonal trapezoidal, head cavity body near pulp distributor is bigger, dwindles transitting to nozzle 10 gradually.
The course of work of the present utility model is: slurry stream advances slurry from advancing to starch Taper Pipe 1, through pulp distributor 2 cloth slurry, and the slurry stream that comes out from pulp distributor, 4 neat and well spaced and buffering backs are sprayed by nozzle 10 and are surfed the Net through the chamber, weir.
Claims (3)
1. waterpower formula flow box, stock inlet has into slurry Taper Pipe (1), pulp distributor (2), base (3) is arranged at the bottom, casing is provided with chamber, weir (4) and front wallboard (5), rear wall plate (6) and both sides wallboard, mouth spray has top lip of slice guiding mechanism (9), top lip of slice (7), aulaeum (8), labial lamina constitutes nozzle (10) up and down, it is characterized in that: pulp distributor (2) becomes 90 ° ± 30 ° layouts with nozzle (10), be provided with an airtight chamber, weir (4) between pulp distributor (2) and the nozzle (10), its cavity is bigger by (2) one of pulp distributors, and dwindles transition gradually until narrow nozzle (10).
2. waterpower formula flow box according to claim 1 is characterized in that: pulp distributor (2) is positioned at the casing top.
3. waterpower formula flow box according to claim 1 and 2 is characterized in that: it is trapezoidal that chamber, weir (4) are polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022960 CN2698833Y (en) | 2004-05-21 | 2004-05-21 | Hydraulic head box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022960 CN2698833Y (en) | 2004-05-21 | 2004-05-21 | Hydraulic head box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2698833Y true CN2698833Y (en) | 2005-05-11 |
Family
ID=34770566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022960 Expired - Lifetime CN2698833Y (en) | 2004-05-21 | 2004-05-21 | Hydraulic head box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2698833Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753754A (en) * | 2010-02-05 | 2012-10-24 | 福伊特专利公司 | Headbox and sheet-forming unit comprising a headbox |
| CN107385987A (en) * | 2017-09-15 | 2017-11-24 | 宁波华辰机械有限公司 | A kind of inclined wire paper making equipment |
| CN114457609A (en) * | 2022-01-18 | 2022-05-10 | 中国科学院山西煤炭化学研究所 | Flow box for special fibers and method for dispersing fibers by using flow box |
-
2004
- 2004-05-21 CN CN 200420022960 patent/CN2698833Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753754A (en) * | 2010-02-05 | 2012-10-24 | 福伊特专利公司 | Headbox and sheet-forming unit comprising a headbox |
| CN107385987A (en) * | 2017-09-15 | 2017-11-24 | 宁波华辰机械有限公司 | A kind of inclined wire paper making equipment |
| CN107385987B (en) * | 2017-09-15 | 2023-08-04 | 宁波华辰机械有限公司 | Inclined wire papermaking equipment |
| CN114457609A (en) * | 2022-01-18 | 2022-05-10 | 中国科学院山西煤炭化学研究所 | Flow box for special fibers and method for dispersing fibers by using flow box |
| CN114457609B (en) * | 2022-01-18 | 2024-02-27 | 中国科学院山西煤炭化学研究所 | Head box for special fiber and fiber dispersing method using head box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140521 Granted publication date: 20050511 |