CN206815085U - A kind of cylinder mould machine equipressure etc. flows pulp distributor - Google Patents

Abstract

It the utility model is related to a kind of stream pulp distributor such as cylinder mould machine equipressure, enter to starch house steward, slurry intake chamber, sinker, pulp-supplying chamber, grout outlet, exhaust outlet, exhaust funnel, drain tap, pressure-regulating valve, visor, air inlet pipe, circle end socket and the column that it includes bottom opening are formed, sinker is fixed on inside cylinder, outlet connection is uniformly distributed along cylinder circumference is contour, exhaust outlet is connected on pulp-supplying chamber side, and compressed air inlet pipe is connected on round end socket top.The utility model stores up the tapered pulp-inlet pipe in oar room replacement side by using cylinder type, several grout outlets are set on the same cross section of cylinder type storage oar room, connected by the homogenate ditch of starching flexible pipe and former, realize that multitube cloth is starched, so that the pressure of the same cross section upper fluid of cylinder type storage slurry room is equal, the tapered pulp-inlet pipe in the side of overcoming is pressure at two ends has differences on broadsheet machine the defects of, so as to ensure the cross direction ration of paper web and consistency of thickness.The device is mainly used for the transformation of traditional type cylinder mould machine, long mesh paper making machine is also suitable for, the shaping of online slurry can be improved with relatively low cost of investment, improve product quality, effectively improve the competitiveness of enterprise product.

Description

A kind of cylinder mould machine equipressure etc. flows pulp distributor

Technical field

It the utility model is related to papermaking equipment, more particularly to a kind of stream pulp distributor such as cylinder mould machine equipressure.

Background technology

Paper stock streaming is completed by paper machine slurry flowing box, and the main function of head box is equal along the banner overall with of paper machine Even, stable distribution paper stock, ensure uniform pressure distribution, speed is uniform, flow is uniform, concentration is uniform and the controllability of fiber alignment And uniformity.And online injection paper stock stream is sent to the most suitable position of forming section with optimal angle.

Cylinder gunite online shaped device is typically by some on the tapered pulp-inlet pipe in side, the side's of being evenly distributed on Taper Pipe The compositions such as through type starching flexible pipe, former frame, homogenate ditch, baffle, upper pulpboard, set screw, general cylinder supply slurry Form is to enter slurry from the tapered pulp-inlet pipe entrance in side, outlet return, utilizes some through types on the side's of being evenly distributed on Taper Pipe Starching flexible pipe realizes that multitube cloth is starched.The tapered pulp-inlet pipe of user is to be able to keep certain starching pressure in the transverse direction of paper machine Power, to reach the uniformity of paper cross direction ration and thickness.

But there is certain limitation for pulp distributing device with taper pipe：

First, pulp distributing device with taper pipe is laterally to enter slurry, and Taper Pipe nearby needs to use elbow, sometimes also needs to install gate. When slurry stream is by parts such as elbow drastically or gates, unstable Secondary Flow can be produced or occur that fluid separates with tube wall shows As.This unstable fluidised form enters the Taper Pipe of pulp distributor, can undoubtedly have a negative impact to the distributed effect of slurry stream.

Next, pulp distributing device with taper pipe slurry must turn 90 ° of ability after flowing into house steward and enter in head box, this fluid wide-angle Inherently a kind of factors of instability of steering.It is this to turn to orientation and the distribution for disturbing fiber, so as to have impact on paper Performance.

3rd, because Taper Pipe enters slurry with direction change suddenly, therefore pulp distributing device with taper pipe has a narrower flow model Enclose with less velocity ratio in head box, in order to prevent house steward from starching, the fleeces in stream is poly- and sedimentation, the flow rate of slurry in house steward Again can not be too low.Therefore the paper machine changed greatly for speed and paper kind, the application of pulp distributing device with taper pipe are restricted.In addition, by Entering slurry in Taper Pipe is entered from one end, other end backflow, makes pulp pressure various pieces especially both ends in Taper Pipe in Taper Pipe It is inconsistent so as to cause to be distributed in the spray pressure of each starching pipe on pulp distributing device with taper pipe and whitewashing amount in the presence of certain difference, Have a negative impact to page characteristic.

With the development and the improvement of people's living standards of society, market proposes higher and higher want to the quality of paper To ask, the paper of high quality requires that page has the cross direction ration deviation of very little and the good fiber-wall-element model uniformity, and due to mesh The limitation of preceding pulp distributing device with taper pipe, how to develop one kind and be simple to manufacture, while energy paper feeding machine provides stable slurry stream, is bored with overcoming The device of pipe pulp distributor adverse effect just has realistic meaning.

The content of the invention

Cloth existing for the pulp distributing device with taper pipe that the purpose of this utility model is to use for the existing head box of cylinder mould machine is starched Effect is undesirable, it is difficult to the defects of meeting the requirement of high quality paper convection current slurry case, there is provided a kind of cylinder mould machine equipressure etc. is spread Device is starched, instead of pulp distributing device with taper pipe, the steering of slurry stream is eliminated and banner enters to starch the inconsistent influence to page quality of pressure, improve existing Head box meets the requirement of high quality paper convection current slurry case to product and the adaptability of speed.

Stable-pressure device structure of the present utility model is as shown in figure 1, mainly by entering to starch house steward（2）, slurry intake chamber（3）, sinker （4）, pulp-supplying chamber（5）, grout outlet（6）, exhaust outlet（7）, exhaust funnel（8）, drain tap（9）, circle end socket（10）, pressure regulation Valve（11）, air inlet pipe（12）, visor（13）And column（1）Form, sinker（4）It is fixed on inside cylinder, grout outlet（6）Along cylinder The contour distribution of body even circumferential, exhaust outlet（7）With exhaust funnel（8）It is welded on pulp-supplying chamber（5）On side, air inlet pipe（12）Welding In circle end socket（10）On.

The beneficial effect that the utility model reaches：Pulp distributing device with taper pipe is replaced by using cylinder type pulp distributor, in cylinder type Pulp distributor etc. several grout outlets are set in high cross-section, realize multitube cloth slurry by waiting long soft-pipe to be connected with head box, The side of overcoming enters to starch the problem of pressure has differences in tapered pulp-inlet pipe both ends.

The utility model has the following advantages that compared with prior art：The stream pulp distributor such as equipressure is simple to manufacture, machining accuracy Height, it is easy to operate；Slurry is introduced into the stream pulp distributor such as equipressure, subsequently into head box, without direction change suddenly, so that Avoid and turn to adverse effect caused by, fiber-wall-element model uniform to slurry；The stream pulp distributor grout outlet each point such as equipressure is isobaric Constant speed, ensure that slurry is uniformly distributed along paper machine banner.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the stream pulp distributor such as cylinder mould machine equipressure of the utility model.

Fig. 2 is the structural representation of the stream pulp distributor sinker such as Fig. 1 equipressures.

Embodiment

During utility model works, the slurry next from pulp feeding system, enter from the house steward 2 that enters to starch of bottom in slurry intake chamber 3, lead to Entered back into after crossing sinker 4 in pulp-supplying chamber 5, then slurry is distributed in pulp-supplying chamber into contour equally distributed along cylinder circumference In grout outlet 6, grout outlet 6 is connected with head box by flexible pipe, and the other end of flexible pipe is connected to the homogenate ditch of head box, Ran Hou Pressure effect is lower to be sprayed on the cylinder cover of rotation by mouth spray and carries out dehydration and form l Water Paper page, is then taken off by couch roll extruding Enter the processes such as press section of a paper machine and drying section with woollen blanket after water and complete manufacturing paper with pulp for paper.Sinker 4 plays a part of energy-dissipating and rectifying flow, Slurry stream disperses fleeces by sinker 4 and gathered, and decay slurry stream pulsation, discharges the free shape gas being present in slurry, and make Slurry gently enters in pulp-supplying chamber 5.The shallow bid slurry stream that sinker comes out is sufficiently mixed in pulp-supplying chamber 5, and fiber obtains It is further scattered, and eliminate the pressure oscillation between each stock slurry stream.Grout outlet 6 is contour along the stream pulp distributor circumference such as equipressure Even distribution, there is identical outlet pressure and flow velocity, equal with the every hose length that head box is connected, diameter is identical, Then the stream such as equal equipressure is flowed to each stock slurry that head box provides, so ensures that slurry evenly into head box.Air inlet 12 are passed through air supply to ensure that liquid level and pressure are constant in pulp-supplying chamber 5, can pass through visor by the regulation of pressure-regulating valve 11 Stream mode is starched in 13 observation pulp rooms.The foam and gas of the stream pulp distributor such as equipressure can be by drain taps 9 from the row of exhaust funnel 8 Go out, while drain tap 9 also plays a part of stable slurry flowing pressure, reduces pressure oscillation.

Therefore, the utility model can provide stable slurry stream for cylinder mould machine head box, while eliminate pressure pulse, preferably Solution pulp distributing device with taper pipe existing for cloth slurry effect problem, improve head box to product and the adaptability of speed, be not only applicable to Transformed on traditional circle net pulp flow box, be also applied for the use of fourdrinier wire head box, while cost of investment is low, is simple to manufacture It is convenient, the operation of head box is effectively improved, improves product quality.

Claims (1)

1. a kind of cylinder mould machine equipressure etc. flows pulp distributor, it is characterised in that by entering to starch house steward（2）, slurry intake chamber（3）, sinker（4）、 Pulp-supplying chamber（5）, grout outlet（6）, exhaust outlet（7）, exhaust funnel（8）, drain tap（9）, circle end socket（10）, pressure-regulating valve （11）, air inlet pipe（12）, visor（13）And column（1）Form, sinker（4）It is fixed on inside cylinder, grout outlet（6）Along cylinder The contour distribution of even circumferential, exhaust outlet（7）With exhaust funnel（8）It is welded on pulp-supplying chamber（5）On side, air inlet pipe（12）It is welded on Circle end socket（10）On.