CN202081336U - Diluted white water head box - Google Patents
Diluted white water head box Download PDFInfo
- Publication number
- CN202081336U CN202081336U CN2011200708549U CN201120070854U CN202081336U CN 202081336 U CN202081336 U CN 202081336U CN 2011200708549 U CN2011200708549 U CN 2011200708549U CN 201120070854 U CN201120070854 U CN 201120070854U CN 202081336 U CN202081336 U CN 202081336U
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- orifice plate
- head box
- dilution
- plain boiled
- boiled water
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Abstract
The utility model relates to a diluted white water head box, which comprises a head box body. a slurry inlet header pipe is arranged at the front end of the head box body; the upper part is provided with an overflowing device; one side of the upper part is provided with a diluted white water system; the other side of the lower part is provided with a slurry spraying device; the slurry inlet header pipe is communicated with a front orifice plate; the front orifice plate is communicated with a rear orifice plate; the diluted white water system is communicated between the front orifice plate and the rear orifice plate; the rear orifice plate is communicated with a secondary pipe bundle; and the secondary pipe bundle is communicated with the slurry spraying device. In the diluted white water head box, both the front orifice plate and the rear orifice plate are in staircase structures; a diluted stream channel is in a taper pipe structure; and the structure is provided with dual functions of a staircase diffuser and a mixing chamber as well. The slurry flow is in a conical surface in the front orifice plate so as to ensure that the flow speed of the white water in each branch pipe is uniform; moreover, Z-directional regulation of the slurry flow is also uniform. In the diluted white water head box, a secondary turbulence generator is a crosscurrent cellular turbulence generator, thereby increasing the flow rate of the slurry flow of the head box in a pool, preventing phenomena of flocculation and deposition and ensuring the quality of finished paper.
Description
Technical field
The utility model relates to a kind of paper making equipment, especially a kind of dilution plain boiled water head box.
Background technology
The fluctuation of head box horizontal quantification is adjusted to be divided into and is transferred dense formula and preceding labial lamina mechanical conditioning type dual mode.Transferring dense formula structure is by increasing the laterally interior among a small circle laterally concentration of slurry stream that changes of dilution plain boiled water, controlling horizontal horizontal quantification and fluctuate.It can avoid adopting labial lamina to regulate bias current and the cross-flow that produces.
The following paper machine of existing 500m/min is mainly taked homogenate roll-type head box, and laterally adjustment mode is the mode of labial lamina before the mechanical adjustment.Because the influence of the doctor-roll that rotates, it is not suitable for adopting dilution plain boiled water control mode.Quality of finished paper is relatively poor.
Poly-and the depositional phenomenon of wadding takes place owing to the flow velocity of head box in the pond, weir is lower in homogenate roll-type head box easily, influences quality of finished paper.
Summary of the invention
The purpose of this utility model is to be not suitable for adopting the lower shortcoming and the problem of flow velocity of transferring head box in dense formula structure and the pond, weir for overcoming and solving existing homogenate roll-type head box, and a kind of dilution plain boiled water head box of being convenient to regulate horizontal quantification fluctuation, assurance quality of finished paper is provided.
For achieving the above object, the utility model adopts following technical proposals:
A kind of dilution plain boiled water head box comprises the head box casing, and described head box casing front end is provided with into slurry house steward, and top is provided with overflow mechanism, and top one side is provided with the dilution white-water system, and the bottom opposite side is provided with refractory gunning equipment; Describedly advance to starch house steward and be connected with preceding orifice plate, preceding orifice plate is communicated with the back orifice plate, is communicated with between preceding orifice plate and the back orifice plate and dilutes white-water system, and back orifice plate is restrained with secondary and is connected, and secondary is restrained and is connected with refractory gunning equipment.
Described dilution white-water system comprises plain boiled water inlet pipe and coupled dilution water regulator.
Orifice plate is provided with some apertures before described, the second half section cavity cross-section of described back orifice plate greater than the back orifice plate before half section cavity cross-section.
Describedly advance to starch the house steward side of employing conical tube structure, square Taper Pipe small end is provided with refluxing opening, and pressure balance and display unit are equipped with in square Taper Pipe two ends.
Described secondary tube bank is turbulent flow generator, form by front and back tube sheet, tube bank and interfix tube sheet, front tube sheet and the tube bank between, restrain and between back tube sheet, all adopt the expanded joint mode to connect together, tube bank import department is a circular cross section, the exit is a hexagonal section, tube bank inner surface electrochemical polish.
Described head box overflow mechanism top is provided with the rotating spraying pipe.
Be provided with around the described head box casing and walk on stage, walking on stage is provided with staircase and railing.
Dilution water regulator, overflow mechanism and refractory gunning equipment in the utility model are existing apparatus, do not repeat them here.
Workflow of the present utility model is that slurry enters preceding orifice plate from slurry stream house steward, mixes between preceding orifice plate and back orifice plate and from the dilution plain boiled water that dilutes white-water system, enters turbulent flow generator, sprays online through refractory gunning equipment.
The slurry that comes from slurry stream house steward enters preceding orifice plate, and preceding orifice plate is divided into the tiny slurry stream of multiply, and slurry stream is accelerated; Between preceding orifice plate and back orifice plate, evenly mix, and starch the flow section sudden enlargement, low-pressure area occurs in the second half section of back orifice plate with the plain boiled water that comes from the dilution white water pipe, produce and reflux, form the little eddy current of a sealing, form speed difference, form shearing force (high strength microturbulent motion) with main flow.After paper stock passed through the back orifice plate, each strand slurry stream merged together again, has eliminated the influence of effect of boundary layer; Also make simultaneously dilution plain boiled water obtain more even the mixing fully with slurry stream.
Preceding orifice plate that slurry passes through in the utility model and back orifice plate are hierarchic structure, and the dilution water runner is a conical tube structure, and the structure of preceding orifice plate and back orifice plate possesses the dual-use function of stepped diffuser and mixing chamber simultaneously.
Slurry stream be the conical surface in preceding orifice plate, is uniformly to guarantee the flow velocity of plain boiled water in each arm, and also is uniform at the Z of slurry stream to adjustment.
Secondary turbulent flow generator in the utility model is the cellular turbulent flow generator of cross-flow, and it has improved the flow velocity of the slurry stream of head box in the pond, has prevented the poly-and depositional phenomenon of wadding, has guaranteed quality of finished paper.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that slurry and dilution plain boiled water converge schematic diagram in preceding orifice plate, back between the orifice plate;
Fig. 3 is preceding orifice plate master TV structure schematic diagram;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 be among Fig. 4 A-A to cutaway view;
Fig. 6 is a back orifice plate master TV structure schematic diagram;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 be among Fig. 6 B-B to cutaway view;
Wherein 1. advance to starch house steward, 2. before orifice plate, 3. back orifice plate, 4. head box casing, 5. plain boiled water inlet pipe, 6. secondary tube bank, 7. refractory gunning equipment, 8. overflow mechanism, 9. dilution water regulator.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Shown in Fig. 1-8, a kind of dilution plain boiled water head box, comprise head box casing 4, described head box casing 4 front ends are provided with into slurry house steward 1, head box casing 4 tops are provided with overflow mechanism 8, the dilution white-water system is arranged at head box casing 4 tops one side, and refractory gunning equipment 7 is arranged at head box casing 4 bottom opposite sides; Describedly advance to starch house steward 1 and be connected with preceding orifice plate 2, preceding orifice plate 2 is communicated with back orifice plate 3, is communicated with between preceding orifice plate 2 and the back orifice plate 3 and dilutes white-water system, and back orifice plate 3 is restrained 6 with secondary and is connected, and secondary is restrained 6 and is connected with refractory gunning equipment 7.
Advance to starch house steward's 1 employing side's Taper Pipe form, small end is provided with refluxing opening, side's Taper Pipe all adopts the corrosion resistant plate welding, material is 316L, inboard wall of tube body economy-combat grinding and polishing light, more than fineness 0.8 μ, the pressure balance display unit is equipped with at square Taper Pipe two ends, with the pressure reduction at Taper Pipe two ends, the side of reflection, to guarantee the pressure reduction at isobaric side's Taper Pipe two ends.Side's Taper Pipe can be opened with head box casing 4 easily, so that clean.
The dilution white-water system comprises plain boiled water inlet pipe 5 and coupled dilution water regulator 9.
The structure of preceding orifice plate 2 is shown in Fig. 3,4,5, and preceding orifice plate 2 is provided with some apertures.
Slurry is by the slurry that advances to starch house steward 1 orifice plate 2 before a passage enters, and dilution plain boiled water enters preceding orifice plate 2 by the b passage.Slurry and dilution plain boiled water mix in preceding orifice plate 2, and it all is uniform distributing in each hole.The material of preceding orifice plate 2 is a fiberglass, inwall economy-combat grinding and polishing light, and fineness is more than 0.4.
The structure of back orifice plate 3 such as Fig. 6-shown in Figure 8.The second half section cavity cross-section of back orifice plate 3 is greater than back orifice plate 3 preceding half section cavity cross-section.Mixed slurry quickens in the b passage, then in the diffusion of slowing down of c passage, has guaranteed the uniformity that slurry distributes, and follows out c passage laggard the becoming a mandarin of diffusion of further slowing down and starches box body 4.The material of back orifice plate 3 is a fiberglass, inwall economy-combat grinding and polishing light, and fineness is more than 0.4.
Head box casing 4 adopts the welding of 316L stainless steel, the inwall sanding and polishing of casing, surface smoothness 0.4 μ.Also be provided with overflow mechanism (back wall overflow ducts) 8 in the casing, the fore side wallboard is provided with hand hole, so that maintenance and cleaning, casing is by bracket supports, and support has the adjustment parallels, can adjust the setting height(from bottom) of head box easily.Casing is provided with glass peephole, is convenient to observe slurry position height.
Secondary tube bank 6 is a turbulent flow generator, form by front and back tube sheet, tube bank and interfix tube sheet, between front tube sheet and the tube bank, restrain between back tube sheet and to adopt expanded joint to connect together, tube bank import department is a circular cross section, the exit is a hexagonal section, tube bank inner surface electrochemical polish fineness 0.4um, material: 316L, sagging plate material: 304.
Head box overflow mechanism 8 tops are provided with the rotating spraying pipe, and to eliminate the fiber that adheres on slurry papula foam and the cabinet wall, injection spray pipe adopts stainless steel to make.
For the ease of adjusting and maintenance to top lip of slice, around head box, be provided with and walk on stage, to walk platen staircase and railing and all adopt stainless steel to make, railing and staircase are also done polishing, and draping and roll change are convenient in the design of walking on stage.
Air cushion pressure in the head box is controlled according to the speed of a motor vehicle automatically by computer, guarantees pressure stability.
Claims (7)
1. a dilution plain boiled water head box comprises the head box casing, it is characterized in that described head box casing front end is provided with into slurry house steward, and top is provided with overflow mechanism, and top one side is provided with the dilution white-water system, and the bottom opposite side is provided with refractory gunning equipment; Describedly advance to starch house steward and be connected with preceding orifice plate, preceding orifice plate is communicated with the back orifice plate, is communicated with between preceding orifice plate and the back orifice plate and dilutes white-water system, and back orifice plate is restrained with secondary and is connected, and secondary is restrained and is connected with refractory gunning equipment.
2. dilution plain boiled water head box according to claim 1 is characterized in that, described dilution white-water system comprises plain boiled water inlet pipe and coupled dilution water regulator.
3. dilution plain boiled water head box according to claim 1 is characterized in that, described before orifice plate be provided with some apertures, the second half section cavity cross-section of described back orifice plate greater than the back orifice plate before half section cavity cross-section.
4. dilution plain boiled water head box according to claim 1 is characterized in that, describedly advances to starch the house steward side of employing conical tube structure, and square Taper Pipe small end is provided with refluxing opening, and pressure balance and display unit are equipped with in square Taper Pipe two ends.
5. dilution plain boiled water head box according to claim 1, it is characterized in that, described secondary tube bank is turbulent flow generator, form by front and back tube sheet, tube bank and interfix tube sheet, front tube sheet and the tube bank between, restrain and between back tube sheet, all adopt the expanded joint mode to connect together, tube bank import department is a circular cross section, and the exit is a hexagonal section, tube bank inner surface electrochemical polish.
6. dilution plain boiled water head box according to claim 1 is characterized in that, described head box overflow mechanism top is provided with the rotating spraying pipe.
7. dilution plain boiled water head box according to claim 1 is characterized in that, is provided with around the described head box casing and walks on stage, and walking on stage is provided with staircase and railing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200708549U CN202081336U (en) | 2011-03-17 | 2011-03-17 | Diluted white water head box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200708549U CN202081336U (en) | 2011-03-17 | 2011-03-17 | Diluted white water head box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081336U true CN202081336U (en) | 2011-12-21 |
Family
ID=45341975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200708549U Expired - Fee Related CN202081336U (en) | 2011-03-17 | 2011-03-17 | Diluted white water head box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081336U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290718A (en) * | 2012-02-24 | 2013-09-11 | 胡正富 | Papermaking equipment |
| CN103734898A (en) * | 2013-12-19 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Intelligent reconstituted tobacco molding device |
| CN107083715A (en) * | 2017-06-22 | 2017-08-22 | 北塘区军之印纸品加工厂 | A kind of paper product production headbox apparatus |
-
2011
- 2011-03-17 CN CN2011200708549U patent/CN202081336U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290718A (en) * | 2012-02-24 | 2013-09-11 | 胡正富 | Papermaking equipment |
| CN103290718B (en) * | 2012-02-24 | 2016-02-10 | 胡正富 | Paper making equipment |
| CN103734898A (en) * | 2013-12-19 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Intelligent reconstituted tobacco molding device |
| CN107083715A (en) * | 2017-06-22 | 2017-08-22 | 北塘区军之印纸品加工厂 | A kind of paper product production headbox apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20150317 |
|
| EXPY | Termination of patent right or utility model |