CN2623743Y - United pressure screen - Google Patents
United pressure screen Download PDFInfo
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- CN2623743Y CN2623743Y CN 03235398 CN03235398U CN2623743Y CN 2623743 Y CN2623743 Y CN 2623743Y CN 03235398 CN03235398 CN 03235398 CN 03235398 U CN03235398 U CN 03235398U CN 2623743 Y CN2623743 Y CN 2623743Y
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- Prior art keywords
- sieve
- wing
- screen
- main shaft
- housing
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Abstract
The utility model discloses a combined pressurized screen which pertains to a separating device used for pulp and paper making. The combined pressurized screen is composed of fifteen parts, including a belt pulley 1, a principal axis 2, a rolling bearing 3, a bearing support 4, a principal axis holder 5, a frame 6, a combined screen shell 7, a fixed-wing 8, an adjustable seal ring 9, a movable screen 10, a pendular water ring gland cover 11, a mechanical seal 12, a rotor ring 13, a fixed sieve 14 and an end enclosure 15. The utility model is a high-speed closed separating device combining a pore screen and a slotted screen that both pertain to the field of traditional pressurized screens as a whole. The utility model realizes twice separating processes in a single container, thereby decreasing a plurality original links ranging from a first separating process and a second separating process. One separating device substitutes two separating devices, thereby shortening the flow, and also has the advantages of small volume and therefore less occupied land, less investment, energy conservation, consumption reduction, etc. Additionally, the utility model can effectively prevent pulp from escaping along the principal axis and alleviate the pollution to environment nearby and therefore is of a broad application prospect.
Description
Technical field
The utility model relates to a kind of screening installation of paper-making pulping; Specifically, relate to a kind of by moving sieve, fixed sieve, the moving wing, decide the associating pressurized screen that organic assembling such as the wing forms.
Background technology
In the paper-making pulping industry, because the continuous expansion of scale output, traditional pulping process is replaced by the closed screening new technology of low energy consumption, of low pollution gradually.Screening installation is one of key equipment of realizing in the middle of the slurrying closed screening new technology.At present, dense pressurized screen in domestic the having now only has simple function sieve (being called for short single sieve), and the list screening is hole sizer and slotted screen.Single sieve can only be finished its single a kind of function, needs to adopt pipeline, valve to connect between hole sizer and the slotted screen, and the centre must be adopted stock pump that material is transmitted and be carried.Consequently installed capacity is big, and water consumption is many, and the circuit of conveying is long, and floor space is big.
Summary of the invention
The utility model purpose just be to overcome existing in the above-mentioned shortcoming and defect that exists of dense pressurized screen, and dense sieve is the brand new of one in two kinds of a kind of collection that provides, and promptly unites pressurized screen.The associating pressurized screen can be in same container, in short time the slurry of sending into is finished scalping and fine screen, good slurry after screening is sent to subsequent processing again, the thick slurry of remainder is back to a last operation, in the process of screening the pulp, the black liquor that will constantly utilize self produces recoils, in a kind of closed screening technology that circulates in dense filtering screening equipment.
The utility model is achieved in that by belt pulley (driven pulley), main shaft, bearing spider, main shaft supporting seat, frame, housing, decide 15 parts such as the wing, sealing ring, moving sieve (hole sizer), seal isolation water jacket, mechanical seal, rotor, fixed sieve (slotted screen), shell cover forms.
Its material of main part is generally common stainless steel or 316L processes.
As shown in Figure 1, traditional pulping process flow is: boiling is starched a-and is gone out knotter screen b-scalping c-fine screen d--and purify the e--cylinder and concentrate f-and remove to bleach g.
As shown in Figure 2, the utility model technological process is: boiling is starched a-associating pressurized screen A-and is removed to bleach g; Wherein unite the thick slag among the pressurized screen A, thin slag and return associating pressurized screen A through scalping c, two sections sieve i more respectively.
This shows that the utility model is simplified than traditional pulping process flow of identical scale, total installation of generating capacity and ton slurry water consumption also greatly reduce.
The utlity model has following advantage and good effect:
1. the utility model is the high speed closed screening equipment that traditional pressurized screen hole sizer of collection and slotted screen are one.Its maximum characteristics are that boiling is starched directly and entered from the pressurized screen bottom, hole sizer through rotation, because rotation hole sizer deciding under the wing effect at given shape, make hole sizer and decide constantly to produce between the wing positive and negative pressure, abbreviate low-frequency pulse as, make magma constantly suck the inner chamber of screen cylinder under the effect of negative pressure, barotropic state is next to be constantly to play the effect of cleaning sieve plate.After sucking slurry from hole sizer through roughly selecting, repeat a working cycles recited above simultaneously between the rotor through rotating and the fixing slotted screen again after, the good slurry after screening is sent subsequent processing.
2. the utility model also designs the water ring sealing device of a uniqueness, and it can successfully be isolated into three different intervals with the slurry that makes up in the sieve effectively, and promptly the district is very starched in magma district, half, good slurry is distinguished, thereby has reached the purpose that subregion screens.
3. compare with the screening installation of at present domestic existing equal usefulness, the utility model volume is little, and floor space is than original 5/6m that reduced
2, and power consumption has reduced 365kwh, ton slurry water consumption drops to about 100 tons by original 200 tons, has also reduced duct length and part valve etc. simultaneously, and has more helped realizing computer controlled automatic.In a word, under the situation of equal scale, it is conspicuous reducing investment and saving energy and reduce the cost.
4. the great advantage of this series of combination pressurized screen is that also the closed screening new technology of promoting at present has adaptability widely both at home and abroad.As in the paper-making pulping industry, the stainless steel series of products can be used for having the screening occasion of the strong material of corrosivity.
5. the utility model is equipped with a special mechanical seal in main shaft upper end, when main shaft when rotated, can prevent effectively that slurry from leaking along main shaft, reduced the pollution of surrounding enviroment simultaneously.
Description of drawings:
Fig. 1 is traditional pulping process flow figure;
Fig. 2 is the utility model process chart;
Fig. 3 is the utility model structure chart (analysing and observe);
Fig. 4 is for deciding wing schematic perspective view;
Fig. 5 is the hole sizer schematic perspective view;
Fig. 6 is the slotted screen schematic perspective view.Wherein:
A-unites pressurized screen;
The a--boiling is encouraged;
B-goes out knotter screen;
The c-scalping;
The d-fine screen;
E--purifies;
The f-cylinder concentrates;
G-goes bleaching;
Two sections sieves of h-;
The 1-belt pulley;
The 2-main shaft;
The 3-bearing;
The 4-bearing spider;
The 5-spindle bearing;
The 6-frame;
7-combination sieve housing;
8-decides the wing, 8.1-cylindrical tube, 8.2-abnormity corrugated plating;
The adjustable sealing ring of 9-;
The moving sieve of 10-(hole sizer);
11-water ring sealing shroud, 11.1-cylindrical tube, 11.2-conical shell;
12-mechanical seal, it is to be used for guaranteeing that slurry is not leaked;
The 13-rotor;
14-sieves (slotted screen) surely, 14.1-sieve plate, 14.2-annulus;
The 15-end socket.
The specific embodiment:
By Fig. 3, Fig. 4, Fig. 5, Fig. 6 as can be known, the utility model by belt pulley 1, main shaft 2, rolling bearing 3, bearing spider 4, spindle bearing 5, frame 6, combination sieve housing 7, decide the wing 8, adjustable sealing ring 9, moving sieve 10, water ring sealing shroud 11, mechanical seal 12, rotor 13, sieve 14 surely, 15 parts such as end socket 15 form;
Bearing spider 4 is installed in the two ends of spindle bearing 5, and is fixed by bolts to above it;
Spindle bearing 5 is equipped with main shaft 2, bearing 3, bearing spider 4 etc. in it, treat to be fixed on after integral installation prepares the center in the combination sieve housing 7 again, is fixed by bolts to the lower surface in the combination sieve housing 7 then;
Frame 6 is the usefulness that is used for installing combination sieve housing 7 and electric machine support, then it is installed on the prefabricated cement steel basis;
Combination sieve housing 7 is made up of the cylindrical shell of upper and lower two different-diameters, and its reducing place is welded with the annulus of two different-diameters, and the rotation assembly is housed on the small circle ring, water ring sealing shroud 11 is housed on the large circle and decides the wing 8, and upper flange surface is equipped with end socket 15; Be welded with on the circumference of little, large cylinder into and out of slurry and take over mouthful, slightly starch refluxing opening, black liquor recoils mouthful to wait and takes over mouthful;
Decide the wing 8, the centre is a cylindrical tube 8.1, and cylindrical shell 8.1 peripheries are welded with the corrugated plating 8.2 of 4 abnormity, the purposes of corrugated plating 8.2 is to make the slurry miscarriage give birth to low-frequency pulse in the running, decide the wing 8 integral body and be welded on the flange, bolt hole is arranged on the flange, be fixed by bolts to again on the bracing frame of main shaft 2;
Adjustable sealing ring 9, it is shaped as an annulus circle, and upper and lower can the adjustment and moving gap of sieving 10 end faces interpenetrated to reach three kinds of different slurries, is fixed by bolts on the excircle of deciding the wing 8 flanges;
Moving sieve (hole sizer) 10, a kind of cylindrical tube is covered with the aperture that φ 6～φ 10 is arranged on the cylindrical shell, and the diameter of aperture depends on the requirement of screening technology, is installed in the bottom of rotor 13;
Water ring sealing shroud 11, in the middle of it is cylindrical tube 11.1, the outside of cylindrical shell is with a conical shell 11.2, cylindrical shell 11.1 is welded with an annulus with the bottom of conical shell 11.2, to be full of water in the chuck during work, adopt water to isolate different slurries, the reducing position that water ring sealing shroud 11 is installed in combination sieve housing 7 is on its middle part annulus.
Fixed sieve (slotted screen) 14 formed drum sieve by sieve plate 14.1 and annulus 14.2, and sieve plate 14.1 is to be spliced with bar-shaped one by one batten, or is welded by rolling after the whole plate processing again, and its purposes is to be used for screening the pulp; Size of its sieve seam has tens kinds of specifications, the concrete placement position of neglecting slurry and technology greatly and deciding; Surely sieve 14, be installed in the upper flange surface of combination sieve housing 7, all the other partly then extend to the middle part of combination sieve housing 7;
This shows that the utility model is a kind of new structure that to collect hole sizer, two kinds of screening functions of slotted screen be one.
The utility model operation principle is:
The screening of slurry for the first time: after magma enters in the combination sieve housing 7 from the stock inlet that makes up sieve housing 7 bottoms, because moving sieve 10 is producing the low-frequency pulse current with the corrugated surface of deciding on the wing 8 under the atwirl effect, when the moving sieve 10 of rotation is in negative pressure state following time, slurry is inhaled into the inner face of moving sieve 10 through sieve aperture, when moving sieve 10 is in barotropic state following time, current then recoil and play the effect of cleaning sieve plate, so sieve aperture just can be avoided the danger of stopping up, make sieve plate always be in an optimum duty, so just finished the process of screening slurry for the first time.
The screening of slurry for the second time: be to carry out under the state after finishing screening for the first time, after in the slurry that is screened for the first time enters moving sieve 10, under action of pressure, slurry will enter the top of combination pressure sieve housing 7, and then under the effect of rotor 13, will very starch from the sieve seam and extrude, equally also can produce the low-frequency pulse current owing to rotor 13 and between sieving 14 surely, be moment can produce positive and negative pressure, extrude slurry during malleation, then play the effect of cleaning sieve plate during negative pressure, so just finished the programmed screening process.
Because the utility model is the postsearch screening process that realized in same container, original all too many levels from first screening process to the programmed screening process have been reduced, a screening installation has replaced two screening installations, has shortened flow process, and energy consumption will reduce greatly.
The utility model can be used for different procedure position in the slurrying screening, when specifically using, can design the diameter of different hole sizer sieve apertures and the size in slotted screen gap by the characteristic of slurry kind and the position of operation.
Claims (1)
1, the associating pressurized screen is characterized in that being made up of following parts; Its position and annexation are:
Belt pulley (1) is a kind of pulley concial disk of multiple-grooved, the lower end in main shaft (2);
Main shaft (2) is a kind of stairstepping circular shaft, in the centre of combination sieve housing (7);
Bearing (3) is on bearing spider (4), and the upper/lower terminal of main shaft (2) has 4 bearings;
Bearing spider (4) is at the two ends of spindle bearing (5);
Spindle bearing (5) has main shaft (2), bearing (3), bearing spider (4) in it, whole center in combination sieve housing (7);
Frame (6) has combination sieve housing (7) and electric machine support on it;
Combination sieve housing (7) is made up of the cylindrical shell of upper and lower two different-diameters, and there is the annulus of two different-diameters at its reducing place, and the rotation assembly is arranged on the small circle ring, water ring sealing shroud (11) is arranged on the large circle and decide the wing (8), and upper flange surface has end socket (15); Have on the circumference of little, large cylinder into and out of slurry and take over mouthful, slightly starch refluxing opening, the black liquor mouth that recoils;
Decide the wing (8), the centre is a cylindrical tube (8.1), and cylindrical shell (8.1) periphery has the corrugated plating (8.2) of 4 abnormity, and it is whole on a flange to decide the wing (8), bolt hole is arranged, on the flange on the bracing frame of main shaft (2);
Adjustable sealing ring (9), it is shaped as an annulus circle, on the excircle of deciding the wing (8) flange;
Moving sieve (10), a kind of cylindrical tube is covered with the aperture that φ 6～φ 10 is arranged on the cylindrical shell, the bottom in rotor (13);
Water ring sealing shroud (11), in the middle of it is cylindrical tube (11.1), there is a conical shell (11.2) outside of cylindrical shell, and the bottom connection of cylindrical shell (11.1) and conical shell (11.2), water ring sealing shroud (11) are on its middle part annulus at the reducing position of combination sieve housing (7);
Rotor (13) is bullet, and cone has 7 block-shaped identical wing plates outward, and rotor (13) is on main shaft (2), in the upper end of deciding the wing (8);
Fixed sieve (14) is formed drum sieve by sieve plate (14.1) and annulus (14.2), and in the upper flange surface that housing (7) is sieved in combination, all the other parts are then at the middle part of housing;
End socket (15), its end face are ball shape, on the upper flange surface of combination sieve housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235398 CN2623743Y (en) | 2003-01-29 | 2003-01-29 | United pressure screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235398 CN2623743Y (en) | 2003-01-29 | 2003-01-29 | United pressure screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2623743Y true CN2623743Y (en) | 2004-07-07 |
Family
ID=34249575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235398 Expired - Fee Related CN2623743Y (en) | 2003-01-29 | 2003-01-29 | United pressure screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2623743Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666978A (en) * | 2009-12-21 | 2012-09-12 | 美佐纸业股份有限公司 | Unit, arrangement and method for screening of cellulose pulp |
| CN109629306A (en) * | 2019-01-13 | 2019-04-16 | 新乡市新平航空机械有限公司 | A kind of upflow pressure thickener |
| CN109653017A (en) * | 2019-01-13 | 2019-04-19 | 新乡市新平航空机械有限公司 | A kind of dilution water ring regulating mechanism |
-
2003
- 2003-01-29 CN CN 03235398 patent/CN2623743Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666978A (en) * | 2009-12-21 | 2012-09-12 | 美佐纸业股份有限公司 | Unit, arrangement and method for screening of cellulose pulp |
| CN102666978B (en) * | 2009-12-21 | 2016-08-03 | 维美德技术有限公司 | Unit, structures and methods for screen fibre element paper pulp |
| CN109629306A (en) * | 2019-01-13 | 2019-04-16 | 新乡市新平航空机械有限公司 | A kind of upflow pressure thickener |
| CN109653017A (en) * | 2019-01-13 | 2019-04-19 | 新乡市新平航空机械有限公司 | A kind of dilution water ring regulating mechanism |
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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 |