CN204530301U - A kind of paper grade (stock) classifying screen - Google Patents
A kind of paper grade (stock) classifying screen Download PDFInfo
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- CN204530301U CN204530301U CN201520211213.9U CN201520211213U CN204530301U CN 204530301 U CN204530301 U CN 204530301U CN 201520211213 U CN201520211213 U CN 201520211213U CN 204530301 U CN204530301 U CN 204530301U
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Abstract
The utility model belongs to papermaking equipment field, provide a kind of paper grade (stock) classifying screen, this classifying screen comprises feeding part and screening part, wherein said screening part mainly comprises support, the pedestal of inclination is provided with in support, pedestal is provided with bottom screen from bottom to top, middle part screen cloth and top mesh, wherein be provided with sieve plate bottom middle part screen cloth and top mesh, and screen cloth hole diameter of sieve (perforated) plate, middle part is less than the aperture of top mesh sieve plate, described pedestal is lifted on support by otic placode and cable wire, driving shaft is connected with by otic placode in base bottom, adopt the classifying screen of this structure, the raw material be broken can be carried out classification to sift out, qualified raw material is sifted out from the screen cloth of middle part, broken not enough raw material then sifts out from top mesh, the raw material of overcrushing then sifts out from bottom screen.
Description
Technical field:
The utility model belongs to papermaking equipment field, is specifically related to a kind of paper grade (stock) classifying screen.
Background technology:
The key steps such as modern Paper making procedure can be divided into slurrying, modulates, manufactures paper with pulp, processing, wherein slurrying is the first step of papermaking, existing slurried feedstock can be divided into 4 large classes with the plant of pulping raw material: stem fiber-like, bast fiber class, seed hair fiber class and lumber fibre class, and in addition waste and old paper also can as slurried feedstock in addition.Wherein especially more with lumber fibre class, but China's timber resources far can not meet the needs of growing pulp and paper industry at present, and can bring very large pressure to environment using timber as paper making raw material, and pollute comparatively serious, the waste water produced and waste residue more, process very difficulty, and straw pulp is as the novel papermaking slurried feedstock of latest developments, replace wood pulp just gradually and become primary slurried feedstock, but because the raw material of straw pulp mostly is herbaceous plant, as stalk etc., its length differs, and impurity content is high, how can reasonably application and paper industry be insoluble problems in the last few years always by it, requirement is had to the length of fiber due to during papermaking pulping, therefore just pulping operation can be carried out after must carrying out fragmentation to raw materials such as stalks, and broken rear stalks etc. there will be the situation that length thickness differs, so just must carry out sizing screening to it, operation is walked after being sent into by qualified raw material, in prior art, the general classifying screen that adopts completes this work, but in fact existing classifying screen is exactly a multilayer screen cloth tilted, raw material self gravitation is relied on to realize through the screen cloth of different pore size in traveling process, although this mode is simple, but because the broken situation of raw material itself differs, easy generation bonding state, so just cannot be sieved out, thus bring very large pressure to subsequent step.
Summary of the invention
For the problems referred to above that existing material grading screen exists, the utility model provides a kind of brand-new classifying screen, this classifying screen comprises feeding part and screening part, wherein said screening part mainly comprises support, the pedestal of inclination is provided with in support, pedestal is provided with bottom screen from bottom to top, middle part screen cloth and top mesh, wherein be provided with sieve plate bottom middle part screen cloth and top mesh, and screen cloth hole diameter of sieve (perforated) plate, middle part is less than the aperture of top mesh sieve plate, described pedestal is lifted on support by otic placode and cable wire, driving shaft is connected with by otic placode in base bottom, adopt the classifying screen of this structure, the raw material be broken can be carried out classification to sift out, qualified raw material is sifted out from the screen cloth of middle part, broken not enough raw material then sifts out from top mesh, the raw material of overcrushing then sifts out from bottom screen, this classifying screen can not only realize the motion before and after screen cloth, the motion of screen cloth vertical direction can also be realized, realize better screening effect.
The utility model is by the following technical solutions: a kind of paper grade (stock) classifying screen, this classifying screen comprises feeding part and screening part, wherein said feeding part comprises feeder, be arranged on the tripper below feeder, be provided with sub-material spiral in described tripper, tripper lower openings is also directly connected with discharging opening;
Wherein said screening part mainly comprises support, the pedestal of inclination is provided with in support, pedestal is provided with bottom screen, middle part screen cloth and top mesh from bottom to top, wherein be provided with sieve plate bottom middle part screen cloth and top mesh, and screen cloth hole diameter of sieve (perforated) plate, middle part is less than the aperture of top mesh sieve plate, described bottom screen base plate is atresia steel plate; Described pedestal is lifted on support by otic placode and cable wire, and described otic placode is welded on pedestal both sides uniformly; Be connected with at least one driving shaft in base bottom by otic placode I, the described driving shaft other end is connected on rotating disk, and described rotating disk is connected with drive motors;
Described feeder is the device of infeed conveyor or identical functions, can the raw materials such as the stalk after fragmentation be sent in tripper by feeder during charging, the sub-material spiral arranged in described tripper is made up of two sections of subtend spirals, described feeder is just to the junction of subtend spiral, after adopting this structure, after raw material enters tripper, force to move to both direction under the drive of subtend spiral, to avoid in prior art spiral in the same way raw material can be extruded further, be difficult to be evenly distributed, the raw material overlapped when fragmentation directly can be separated by subtend spiral simultaneously, moreover, tripper lower openings is coordinated directly to be connected with this structure of discharging opening, raw material is made to be distributed on screen cloth more uniformly, improve the screening effect of raw material on screen cloth,
The raw material fallen from discharging opening directly falls in top mesh, due to pedestal be tilt be arranged in support, so raw material can under self gravitation effect slide downward, after sliding into sieve plate part, due to the difference of degree of crushing, the raw material of large-size can be stayed in top mesh, and continue slide downward, the raw material dropping into middle part screen cloth then can repeat the motion process in top mesh, wherein qualified raw material can be stayed in the screen cloth of middle part, the raw material of overcrushing then can drop in bottom screen, because bottom screen base plate is atresia steel plate, the raw material of this part overcrushing can be stayed in bottom screen, and finally discharge from the discharging opening of bottom screen, fully utilized, the fuel mixed with mud can be done, also fibrous plate raw material can be done, also organic fertilizer raw material etc. can be done, therefore the loss of this part raw material can not be caused, also the pollution of corresponding dust or fine particle would not be caused, to achieve the above object, the utility model talent defines the aperture that screen cloth hole diameter of sieve (perforated) plate, middle part is less than top mesh sieve plate, and the hole diameter of sieve (perforated) plate of middle part screen cloth meets the requirement of raw material just,
Above-mentioned raw material motion is the motion under self gravitation effect, this is also conventional movement technique, the utility model is different from another of prior art, is, utility model people is connected with at least one driving shaft in base bottom by otic placode, the described driving shaft other end is connected on rotating disk, and described rotating disk is connected with drive motors, more preferred mode is, described driving shaft is connected with rotating disk bias, adopt in this way, the rotation of adjoint turn-table, driving shaft can pull pedestal to seesaw, pedestal can also be promoted to move in the vertical direction simultaneously, so just serve the effect of " porpoising ", raw material is not only rolled downwards under gravity on screen cloth, more can in the upper and lower porpoising of the drive of driving shaft, the object done like this, be not only that raw material transport is dynamic provides horizontal direction power, material is made better to be disperseed in upper and lower porpoising process especially, by loose for the raw material top overlapped, better evenly be distributed on screen cloth, thus substantially increase the effect of screening, the mode of material rolling screening is utilized merely to have obvious progress compared to prior art, in order to coordinate this structure, described pedestal is lifted on support by otic placode and cable wire by utility model people, described otic placode is welded on pedestal both sides uniformly, like this when finding porpoising under the drive of pedestal at driving shaft, by the lax of cable wire and the stroke providing pedestal to move up and down can be tightened up, and can by the angle of inclination regulating the length of diverse location cable wire adjust whole pedestal,
In order to avoid when pedestal moves forward and backward and support excessive friction and cause damage, before pedestal both sides and support end in contact position on be provided with roller, this roller is arranged between bottom screen and rack rod, can slide between, the diameter of general control roller is slightly larger than the width of pedestal between bottom screen and rack rod, so just can avoid pedestal and support direct friction, substantially increase the service life of pedestal and support, so in fact also make more easily to dismantle between whole pedestal and support and overhaul;
The raw material of different size is separated conveniently, bottom screen, middle part screen cloth and top mesh are provided with independent discharging opening, and the discharging direction of each discharging opening is different, be convenient to arrange different transports, wherein the discharging opening of middle part screen cloth directly connects feed conveyor belt, the raw material of qualified size is directly sent in lower step equipment, the discharging opening of top mesh then directly connects material feeding of crusher conveyer belt, the raw material of large-size is sent back in disintegrating machine broken, the discharging opening of bottom screen then directly connects scrap conveyor, defective raw material and the impurity that sieves out are discharged otherwise processed.
Because pedestal in the utility model also can move in the vertical direction, therefore outside bottom screen, middle part screen cloth and top mesh, reinforcement is provided with, three partial fixings are linked together, and in order to better observe the situation of acceptable material in the screen cloth of middle part, only screen cloth side, middle part is provided with peep hole, in order to improve the structural strength of screen cloth, in the screen cloth above sieve aperture, reinforcement can be set equally, improve its transverse strength;
Described rotating disk and drive motors are all horizontally set on frame bottom, are connected between the two by belt; In order to reach better effect, every root driving shaft all can be connected on respective rotating disk, then synchronized links is on drive motors;
In sum, adopt the classifying screen of this structure, the raw material be broken can be carried out classification to sift out, qualified raw material is sifted out from the screen cloth of middle part, broken not enough raw material then sifts out from top mesh, and the raw material of overcrushing then sifts out from bottom screen, and this classifying screen can not only realize the motion before and after screen cloth, the motion of screen cloth vertical direction can also be realized, realize better screening effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of classifying screen described in the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the partial enlarged drawing of part A in Fig. 2;
In figure, 1 is discharging opening, and 2 is tripper, and 3 is feeder, and 4 is cable wire, 5 is otic placode, and 6 is support, and 7 is drive motors, and 8 is rotating disk, 9 is driving shaft, and 10 is roller, and 11 is bottom screen discharging opening, and 12 is middle part screen cloth discharging opening, 13 is top mesh discharging opening, and 14 is reinforcement, and 15 is bottom screen, 16 is middle part screen cloth, and 17 is top mesh, 18 pedestals, 19 is sub-material spiral, and 20 is sieve aperture, and 21 is otic placode I.
Detailed description of the invention
A kind of paper grade (stock) classifying screen, this classifying screen comprises feeding part and screening part, and wherein said feeding part comprises feeder 3, is arranged on the tripper 2 below feeder 3, be provided with sub-material spiral 19 in described tripper 2, tripper 2 lower openings is also directly connected with discharging opening 1;
Wherein said screening part mainly comprises support 6, the pedestal 18 of inclination is provided with in support 6, pedestal 18 is provided with bottom screen 15, middle part screen cloth 16 and top mesh 17 from bottom to top, wherein be provided with sieve plate 20 bottom middle part screen cloth 16 and top mesh 17, and middle part screen cloth 16 hole diameter of sieve (perforated) plate is less than the aperture of top mesh 17 sieve plate, described bottom screen 15 base plate is atresia steel plate; Described pedestal 18 lifts on the frame 6 by otic placode 5 and cable wire 4, and described otic placode 5 is welded on pedestal both sides uniformly; Be connected with at least one driving shaft 9 in base bottom by otic placode I 21, described driving shaft 9 other end is connected on rotating disk 8, and described rotating disk 8 is connected with drive motors 7;
Described feeder 3 is the device of infeed conveyor or identical functions;
The sub-material spiral 19 arranged in described tripper 2 is made up of two sections of subtend spirals;
Described feeder 3 is just to the junction of subtend spiral;
The hole diameter of sieve (perforated) plate of middle part screen cloth 16 meets the requirement of raw material just;
Before pedestal 18 both sides and support 6 end in contact position on be provided with roller 10, this roller is arranged between bottom screen 15 and support 6 vertical rod, can slide between, the diameter of general control roller 10 is slightly larger than the width of pedestal between bottom screen and rack rod 18;
Reinforcement 14 is provided with outside bottom screen 15, middle part screen cloth 16 and top mesh 17, three partial fixings are linked together, and in order to better observe the situation of acceptable material in the screen cloth of middle part, only middle part screen cloth 16 side is provided with peep hole, in order to improve the structural strength of screen cloth, in screen cloth above sieve aperture, reinforcement 20 can be set equally, improve its transverse strength;
Described rotating disk 8 is all horizontally set on bottom support 6 with drive motors 7, is connected between the two by belt; In order to reach better effect, every root driving shaft all can be connected on respective rotating disk, then synchronized links is on drive motors;
Bottom screen 15 is provided with independent discharging opening 11, middle part screen cloth 16 is provided with independent discharging opening 12 and top mesh 17 is provided with independent discharging opening 13, and the discharging direction of each discharging opening is different.
Claims (6)
1. a paper grade (stock) classifying screen, comprises feeding part and screening part, it is characterized in that:
Described feeding part comprises feeder (3), be arranged on the tripper (2) of feeder (3) below, be provided with sub-material spiral (19) in described tripper (2), tripper (2) lower openings is also directly connected with discharging opening (1);
Wherein said screening part mainly comprises support (6), the pedestal (18) of inclination is provided with in support (6), pedestal (18) is provided with bottom screen (15), middle part screen cloth (16) and top mesh (17) from bottom to top, wherein middle part screen cloth (16) and top mesh (17) bottom are provided with sieve plate (20), and middle part screen cloth (16) hole diameter of sieve (perforated) plate is less than the aperture of top mesh (17) sieve plate, described bottom screen (15) base plate is atresia steel plate; Described pedestal (18) is lifted on support (6) by otic placode (5) and cable wire (4), and described otic placode (5) is welded on pedestal both sides uniformly; At least one driving shaft (9) is connected with by otic placode I (21) in base bottom, described driving shaft (9) other end is connected on rotating disk (8), and described rotating disk (8) is connected with drive motors (7);
The position of described pedestal (18) both sides and support (6) front end in contact is provided with roller (10), this roller is arranged between bottom screen (15) and support (6) vertical rod; The diameter of roller (10) is greater than the width of pedestal between bottom screen and rack rod (18).
2. classifying screen according to claim 1, is characterized in that:
The sub-material spiral (19) arranged in described tripper (2) is made up of two sections of subtend spirals; Described feeder (3) is just to the junction of subtend spiral.
3. classifying screen according to claim 1, is characterized in that: the hole diameter of sieve (perforated) plate of middle part screen cloth (16) is identical in the requirement of raw materials size.
4. classifying screen according to claim 1, it is characterized in that: described bottom screen (15), middle part screen cloth (16) and top mesh (17) outside is provided with reinforcement (14), and middle part screen cloth (16) side is provided with peep hole.
5. classifying screen according to claim 1, is characterized in that: described rotating disk (8) and drive motors (7) are all horizontally set on support (6) bottom, are connected between the two by belt.
6. classifying screen according to claim 1, it is characterized in that: described bottom screen (15) is provided with independent discharging opening (11), middle part screen cloth (16) is provided with independent discharging opening (12) and top mesh (17) is provided with independent discharging opening (13), and the discharging direction of each discharging opening is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211213.9U CN204530301U (en) | 2015-04-09 | 2015-04-09 | A kind of paper grade (stock) classifying screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211213.9U CN204530301U (en) | 2015-04-09 | 2015-04-09 | A kind of paper grade (stock) classifying screen |
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| Publication Number | Publication Date |
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| CN204530301U true CN204530301U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520211213.9U Active CN204530301U (en) | 2015-04-09 | 2015-04-09 | A kind of paper grade (stock) classifying screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003654A (en) * | 2021-03-01 | 2021-06-22 | 苏州市广园食记餐饮服务有限公司 | Sieve-washing type filter screen mechanism |
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2015
- 2015-04-09 CN CN201520211213.9U patent/CN204530301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003654A (en) * | 2021-03-01 | 2021-06-22 | 苏州市广园食记餐饮服务有限公司 | Sieve-washing type filter screen mechanism |
| CN113003654B (en) * | 2021-03-01 | 2022-11-25 | 上海凤贤化工科技有限公司 | Screen washing type filter screen mechanism |
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