CN206655052U - A kind of paper industry pressure type pulp screen screen cylinder - Google Patents
A kind of paper industry pressure type pulp screen screen cylinder Download PDFInfo
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- CN206655052U CN206655052U CN201720365173.2U CN201720365173U CN206655052U CN 206655052 U CN206655052 U CN 206655052U CN 201720365173 U CN201720365173 U CN 201720365173U CN 206655052 U CN206655052 U CN 206655052U
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Abstract
A kind of paper industry pressure type pulp screen screen cylinder, including grating and retainer ring, grating quantity is some, and some gratings are parallel to each other and are distributed in cylinder barrel shaped, and screen slot is formed between adjacent grating；Retainer ring quantity is some, and the grating being distributed in cylinder barrel shaped is packed on the outside of retainer ring or inner side, retainer ring are perpendicular with grating；Some necks are provided with retainer ring inner face or outer face, neck is identical with grating quantity；Grating uses piece construction, and, grating is divided into head and afterbody, and welds and be connected between head and afterbody in screen cylinder in the radial direction；Snap fit between grating afterbody and the neck of retainer ring；The head of grating uses the antifriction metal (AFM) of HRC55~65, and the afterbody of grating uses austenitic stainless steel.The grating of screen cylinder is designed to piece construction by this programme first, can abandon the use of hard chrome-plated process, and screen cylinder average life can reach 8~10 months, reduce papermaking enterprise production cost, also makes screen cylinder manufacture link more high-efficient energy-saving environment friendly.
Description
Technical field
The utility model belongs to pulp technology for making paper, more particularly to a kind of paper industry pressure type pulp screen screen cylinder.
Background technology
Pressure type pulp screen abbreviation pressurized screen, it is a kind of advanced screening installation, and the core in paper industry at present
One of equipment, and the screen cylinder of pressure type pulp screen is typical consumable accessory, average lives of current most screen cylinders is about 3~
4 months, the average life of only a few screen cylinder can reach 4~5 months, using effective work area as 2 square metres of screen cylinder
Exemplified by, its price alreadys exceed ten thousand yuan, is calculated according to current screen cylinder average life, 1 pressure type pulp screen is in 1 year
Just need to lose 3~6 screen cylinders, and just have more than 10 pressure type pulp screen on a production line, this is for papermaking enterprise
The cost pressure undertaken is very big.
From screen cylinder loss mechanisms, mainly screen cylinder is scrapped caused by abrasion, it was found from being analyzed in screen cylinder structure, by
In screen cylinder using hard chrome-plated process increase wearing layer, and the austenitic stainless steel screen cylinder of single material is used to carry out chromium plating
When, effective wear-resisting position of screen cylinder can not realize comprehensive covering all the time, and technical staff can not solve all the time by various trials, this
And cause the main reason of screen cylinder short life.
In addition, in the case where advocating the background of green manufacturing energetically at present, the quilt of the feature of environmental protection also all the more in screen cylinder manufacturing process
Value, but hard chrome-plated process is significant adverse to feature of environmental protection requirement, and hard chrome-plated process also exist high energy consumption, pollution it is big and
The shortcomings that process-cycle is long, causes current screen cylinder to manufacture and come into the technical bottleneck phase.Therefore, need badly and skill is carried out to screen cylinder
Art is reformed, and while screen cylinder service life is improved, also to meet the requirement such as high-efficient energy-saving environment friendly.
Utility model content
The problem of existing for prior art, the utility model provide a kind of paper industry pressure type pulp screen screen cylinder,
The grating of screen cylinder has been designed to piece construction first, and has abandoned the use of hard chrome-plated process first, screen cylinder is averaged
Service life can reach 8~10 months, not only reduce the production cost of papermaking enterprise, and make the manufacture link of screen cylinder more
High-efficient energy-saving environment friendly.
To achieve these goals, the utility model adopts the following technical scheme that：A kind of pressure type screening the pulp of paper industry
Machine screen cylinder, including grating and retainer ring, the grating quantity is some, and some gratings are parallel to each other and are distributed in cylinder barrel shaped, phase
Screen slot is formed between adjacent grating；The retainer ring quantity is some, and the grating being distributed in cylinder barrel shaped is fixedly mounted on retainer ring
Outside or inner side, and retainer ring and grating length direction are perpendicular；If it is provided with the retainer ring inner face or outer face
Dry neck, neck are identical with grating quantity；The grating uses piece construction, and, grating is divided into head in screen cylinder in the radial direction
Portion and afterbody, and weld and be connected between head and afterbody；Snap fit between the grating afterbody and the neck of retainer ring；It is described
The head of grating uses the antifriction metal (AFM) of HRC55~65, and the afterbody of grating uses austenitic stainless steel.
Screen slot width range between the grating is 0.05mm~1.5mm.
The shape of cross section on the grating head is right angled triangle, and the shape of cross section of grating afterbody is rectangle, grating
The rectangle short side of afterbody and a right-angle side Joint on grating head, the hypotenuse and the afterbody on grating head on grating head are affixed
The drift angle of end right-angle side uses chamfered edge structure.
The angular range of the hypotenuse on the grating head and the afterbody fixed connecting end right-angle side on grating head is 17 °~28 °.
The width range of the afterbody fixed connecting end right-angle side on the grating head is 2.4mm~4mm.
The width range of the non-afterbody fixed connecting end right-angle side on the grating head is 1.5mm~2.5mm.
The width range of the rectangle short side of the grating afterbody is 1.2mm~1.8mm.
The width range of the rectangle long side of the grating afterbody is 5mm~7.5mm.
The beneficial effects of the utility model：
Grating is designed as piece construction, the head of grating and afterbody by the utility model first compared with existing screen cylinder
It is fixedly connected with by welding manner, the particularly material on grating head directly selects the antifriction metal (AFM) of HRC55~65, therefore can abandon
The use of hard chrome-plated process, compared with the austenitic stainless steel screen cylinder of conventionally employed single material, by the average use of screen cylinder
Life-span brings up to 8~10 months, effectively reduces the production cost of papermaking enterprise, due to not using hard chrome-plated process, makes
The manufacturing process of screen cylinder more high-efficient energy-saving environment friendly.
Brief description of the drawings
Fig. 1 is a kind of partial perspective view of paper industry pressure type pulp screen screen cylinder of the present utility model；
Fig. 2 is grating size of the present utility model and adjacent grating position relationship schematic diagram；
In figure, 1-grating, 2-retainer ring, 3-neck, 4-head, 5-afterbody, the angular rim on α-grating head with
The angle of the afterbody fixed connecting end right-angle side on grating head, the afterbody fixed connecting end right-angle side on a-screen slot width, b-grating head
Width, the width of the non-afterbody fixed connecting end right-angle side on c-grating head, the width of the rectangle short side of d-grating afterbody, e-sieve
The width of the rectangle long side of bar afterbody.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, a kind of paper industry pressure type pulp screen screen cylinder, including grating 1 and retainer ring 2, the sieve
The quantity of bar 1 is some, and some gratings 1 are parallel to each other and are distributed in cylinder barrel shaped, and screen slot is formed between adjacent grating 1；The fixation
The quantity of ring 2 is some, and the grating 1 being distributed in cylinder barrel shaped is fixedly mounted on the outside or inner side of retainer ring 2, and retainer ring 2 and sieve
The length direction of bar 1 is perpendicular；Some necks 3 are provided with the inner face of retainer ring 2 or outer face, neck 3 counts with grating 1
Measure identical；The grating 1 uses piece construction, and, grating 1 divides for head 4 and afterbody 5, and head in screen cylinder in the radial direction
Weld and be connected between 4 and afterbody 5；Snap fit between the afterbody 5 of grating 1 and the neck 3 of retainer ring 2；The head of the grating 1
Portion 4 uses the antifriction metal (AFM) of HRC55~65, and the afterbody 5 of grating 1 uses austenitic stainless steel.
Traditional screen cylinder is reviewed, its grating is using the unitary structure of single austenite stainless steel material without exception,
In order to improve the wearability of screen cylinder, wearing layer can only be increased by hard chrome-plated process, but by hard chrome-plated process
Limitation, makes effective wear-resisting position (the grating surfaces of screen slot both sides) of screen cylinder can not realize comprehensive covering, therefore conventional screen all the time
Drum exist short life, cost it is high and not environmentally the problem of.It is first and the utility model has started the brand-new direction of screen cylinder structure design
Secondary that grating is designed as into piece construction, the head of grating and afterbody are fixedly connected with by welding manner, and the head of grating and tail
Portion uses the antifriction metal (AFM) of allosome metal, the particularly material on grating head directly from HRC55~65, and the material of afterbody is still
Austenitic stainless steel is left, due to the presence of head antifriction metal (AFM), hard chrome-plated process can be abandoned completely not to be had to, thus is improved
Screen cylinder because screen cylinder head overall wear resistance is significantly lifted, makes screen cylinder of the present utility model in the feature of environmental protection of manufacture link
Higher service life is provided with, through actual verification, service life was up to 8~10 months, for papermaking enterprise, effectively dropped
Low production cost.
In the present embodiment, the material on grating head 4 is M42 high-speed steel, and the screen slot width a between the grating 1 is
0.2mm, the shape of cross section on the head 4 of grating 1 is right angled triangle, and the shape of cross section of the afterbody 5 of grating 1 is rectangle, sieve
The rectangle short side of the afterbody 5 of bar 1 and a right-angle side Joint on the head 4 of grating 1, hypotenuse and the head of grating 1 on the head 4 of grating 1
The drift angle of 4 afterbody fixed connecting end right-angle side uses chamfered edge structure, the hypotenuse on the head 4 of grating 1 and the afterbody on the head 4 of grating 1
The angle α of fixed connecting end right-angle side is 23 °, and the width b of the afterbody fixed connecting end right-angle side on the head 4 of grating 1 is 3mm, the sieve
The width c of the non-afterbody fixed connecting end right-angle side on the head 4 of bar 1 is 2.3mm, and the width d of the rectangle short side of the afterbody 5 of grating 1 is
1.6mm, the width e of the rectangle long side of the afterbody 5 of grating 1 is 6mm.
Scheme in embodiment simultaneously is not used to limit scope of patent protection of the present utility model, all without departing from the utility model
Carried out by equivalence enforcement or change, be both contained in the scope of the claims of this case.
Claims (8)
1. a kind of paper industry pressure type pulp screen screen cylinder, including grating and retainer ring, the grating quantity is some, if dry screen
Bar is parallel to each other and is distributed in cylinder barrel shaped, and screen slot is formed between adjacent grating；The retainer ring quantity is some, in cylinder barrel shaped
The grating of distribution is fixedly mounted on the outside or inner side of retainer ring, and retainer ring and grating length direction are perpendicular；Described solid
Determine to be provided with some necks on ring inner face or outer face, neck is identical with grating quantity；It is characterized in that：The grating uses
Piece construction, grating are divided into head and afterbody in screen cylinder in the radial direction, and weld and be connected between head and afterbody；It is described
Snap fit between grating afterbody and the neck of retainer ring；The head of the grating uses the antifriction metal (AFM) of HRC55~65, grating
Afterbody use austenitic stainless steel.
A kind of 2. paper industry according to claim 1 pressure type pulp screen screen cylinder, it is characterised in that：The grating it
Between screen slot width range be 0.05mm~1.5mm.
A kind of 3. paper industry according to claim 1 pressure type pulp screen screen cylinder, it is characterised in that：The grating head
The shape of cross section in portion is right angled triangle, and the shape of cross section of grating afterbody is rectangle, and the rectangle short side of grating afterbody is with sieving
One right-angle side Joint on bar head, the drift angle of the hypotenuse on grating head and the afterbody fixed connecting end right-angle side on grating head use
Chamfered edge structure.
A kind of 4. paper industry according to claim 3 pressure type pulp screen screen cylinder, it is characterised in that：The grating head
The angular range of the hypotenuse in portion and the afterbody fixed connecting end right-angle side on grating head is 17 °~28 °.
A kind of 5. paper industry according to claim 3 pressure type pulp screen screen cylinder, it is characterised in that：The grating head
The width range of the afterbody fixed connecting end right-angle side in portion is 2.4mm~4mm.
A kind of 6. paper industry according to claim 3 pressure type pulp screen screen cylinder, it is characterised in that：The grating head
The width range of the non-afterbody fixed connecting end right-angle side in portion is 1.5mm~2.5mm.
A kind of 7. paper industry according to claim 3 pressure type pulp screen screen cylinder, it is characterised in that：The grating tail
The width range of the rectangle short side in portion is 1.2mm~1.8mm.
A kind of 8. paper industry according to claim 3 pressure type pulp screen screen cylinder, it is characterised in that：The grating tail
The width range of the rectangle long side in portion is 5mm~7.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365173.2U CN206655052U (en) | 2017-04-07 | 2017-04-07 | A kind of paper industry pressure type pulp screen screen cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365173.2U CN206655052U (en) | 2017-04-07 | 2017-04-07 | A kind of paper industry pressure type pulp screen screen cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206655052U true CN206655052U (en) | 2017-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365173.2U Active CN206655052U (en) | 2017-04-07 | 2017-04-07 | A kind of paper industry pressure type pulp screen screen cylinder |
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| CN (1) | CN206655052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387762A (en) * | 2019-07-29 | 2019-10-29 | 江门欧佩德晶华轻工机械有限公司 | Sieve stick, screen cylinder and pressurized screen |
-
2017
- 2017-04-07 CN CN201720365173.2U patent/CN206655052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387762A (en) * | 2019-07-29 | 2019-10-29 | 江门欧佩德晶华轻工机械有限公司 | Sieve stick, screen cylinder and pressurized screen |
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