CN116078008A - Arc-shaped sieve plate and processing method - Google Patents
Arc-shaped sieve plate and processing method Download PDFInfo
- Publication number
- CN116078008A CN116078008A CN202310215466.2A CN202310215466A CN116078008A CN 116078008 A CN116078008 A CN 116078008A CN 202310215466 A CN202310215466 A CN 202310215466A CN 116078008 A CN116078008 A CN 116078008A
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- screening unit
- water
- sieve
- supporting
- screening
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- 238000003672 processing method Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000012216 screening Methods 0.000 claims abstract description 61
- 238000005520 cutting process Methods 0.000 claims abstract description 28
- 229920002635 polyurethane Polymers 0.000 claims description 33
- 239000004814 polyurethane Substances 0.000 claims description 33
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/0097—Curved filtering elements, e.g. concave filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/0093—Making filtering elements not provided for elsewhere
Abstract
The invention provides an arc-shaped screen plate and a processing method, wherein the arc-shaped screen plate comprises a screening unit and a supporting frame, the screening unit is fixedly connected inside the supporting frame, the screening unit comprises a plurality of screen plates which are spliced and fixed together, each screen plate is provided with a plurality of strip-shaped water passing holes distributed in a rectangular array, a water cutting groove is obliquely and downwards formed in the position, located on one side of each water passing hole, of the upper surface of the screen plate, and the lower end of the water cutting groove is communicated with the corresponding water passing hole. The invention has the beneficial effects that: the water cutting groove communicated with the water passing holes is obliquely arranged downwards at one side of each water passing hole on the upper surface of the sieve plate, when materials flow, water in the materials can flow downwards along the bottom wall of the water cutting groove, the contact surface through which water needs to flow before entering the water passing holes is increased, the better water cutting effect can be obtained, and the dewatering efficiency is further effectively improved.
Description
Technical Field
The invention belongs to the field of arc-shaped screen equipment, and particularly relates to an arc-shaped screen plate and a processing method.
Background
The arc screen is a solid-liquid separation equipment, which is mainly used for the operations of pre-dewatering, desliming and medium-removing of materials in coal preparation plants and concentrating mills, and can be used for recycling classified coal slime and effectively classifying, dewatering, desliming and medium-removing of fine-grained materials.
Most of the screening plates of the existing arc-shaped screen are metal stainless steel strip seam screening surfaces, the abrasion resistance is poor, 180-degree rotation is needed frequently in the use process, the original lower side is enabled to be turned to the upper side, the original upper side is enabled to be turned to the lower side, and the screening plates are needed to be replaced when abrasion is serious. In order to solve the problem of poor wear resistance of the screen plate, some arc screens are made of polyurethane, but research on how to prolong the service life of the screen plate and improve the dehydration effect is still significant for production.
Disclosure of Invention
In view of the above, the present invention aims to overcome the above-mentioned drawbacks of the prior art, and provides an arc-shaped screen plate and a processing method thereof.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides an arc sieve, includes screening unit, carriage, screening unit rigid coupling in the carriage is inside to be equipped with a plurality of bars that are rectangular array and distribute on screening unit and cross water hole, all slope down has seted up the water cutting groove in the one side department that screening unit upper surface was located every and crossing water hole, and water cutting groove lower extreme and corresponding crossing water hole are linked together.
Further, screening unit quantity is one or more, and screening unit includes one or more sieve piece, and water hole and water cutting groove all set up on sieve piece surface, and when screening unit includes a plurality of sieve pieces, a plurality of sieve pieces concatenation are fixed together.
Further, the cross section between the two side walls of the water passing hole is in an splayed structure.
Further, the supporting frame comprises a first supporting bar and a second supporting bar, a plurality of first supporting bars are arranged side by side, each end of two ends of each first supporting bar is fixedly connected with a second supporting bar, and a screening unit is arranged between every two adjacent first supporting bars.
Further, the screening unit and the supporting frame are fixedly connected together through the polyurethane filling layer, and when the screening unit comprises a plurality of screening sheets, every two adjacent screening sheets in the screening unit are welded together.
Further, the sieve piece connected with the polyurethane filling layer is uniformly provided with a plurality of connectors on the side wall facing the polyurethane filling layer, and the connectors are embedded in the polyurethane filling layer.
Further, the connector is mushroom head structure, and the connector is kept away from one side of sieve piece upper surface and is set up to the tangent plane structure, and first support bar and second support bar are located the mushroom head below department of corresponding sieve piece.
Further, the sieve piece includes roof, limit curb plate, and the water hole is located the roof, all is equipped with limit curb plate downwards around the roof, and four limit curb plates enclose into a quadrilateral frame structure to all be equipped with cross bracing rib in roof bottom, and all be equipped with the strengthening rib between every adjacent two water holes that row, and be equipped with oblique lacing wire between every strengthening rib both ends and the limit curb plate that corresponds, the connector is located corresponding limit curb plate outside.
Further, the sieve sheet is made of polyurethane.
Further, the first supporting bar and the second supporting bar are square tube structures.
The application also provides a processing method for manufacturing the arc-shaped sieve plate, which comprises the following steps:
A. cutting off the connector at one side of each two adjacent sieve sheets which are butted, and reserving the connector facing one side of the supporting frame;
B. aligning and welding and fixing every two adjacent sieve sheets together, and welding a plurality of sieve sheets together in a rectangular array distribution mode to form a sieving unit;
C. sequentially placing a plurality of screening units at corresponding positions of the supporting frame, and pouring polyurethane into gaps between the screening units and the supporting frame to be fixedly connected together;
D. c, rolling the screening unit and the supporting frame fixedly connected structure formed in the step C to form an arc-shaped screen plate.
Compared with the prior art, the invention has the following advantages:
according to the invention, the arc-shaped screen plate is provided with the water cutting grooves communicated with the water passing holes obliquely downwards at one side of the upper surface of the screening unit, when materials flow, water in the materials can flow downwards along the bottom wall of the water cutting grooves, the contact surface through which the water needs to flow before entering the water passing holes is increased, a better water cutting effect can be obtained, and further the dewatering efficiency is effectively improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a distribution structure of a supporting frame and a screen sheet in an arc-shaped screen plate according to an embodiment of the present invention;
figure 2 is a side view of an arcuate screen deck according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sieve sheet according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a cross-sectional view taken along the direction B-B in FIG. 3;
fig. 6 is a partial enlarged view at C in fig. 5.
Reference numerals illustrate:
1. a support frame; 11. a first support bar; 12. a second support bar; 2. screening; 21. a top plate; 211. a water passing hole; 212. a water cutting tank; 22. side plates; 23. cross support ribs; 24. reinforcing ribs; 25. diagonal lacing wires; 26. a connector; 261. cutting into sections; 27. and (3) an exhaust column.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in the figure, the arc-shaped screen plate comprises a screening unit and a supporting frame 1, wherein the screening unit is fixedly connected inside the supporting frame 1, a plurality of strip-shaped water passing holes 211 distributed in a rectangular array are formed in the screening unit, a water cutting groove 212 is obliquely downwards formed in one side of each water passing hole 211 on the upper surface of the screening unit, and the lower end of the water cutting groove 212 is communicated with the corresponding water passing holes 211. In this embodiment, the water cutting groove 212 communicated with the water passing holes 211 is obliquely arranged downwards at one side of each water passing hole 211 on the upper surface of the screening unit, when the material flows, water in the material can flow downwards along the bottom wall of the water cutting groove 212, the contact surface through which the water needs to flow before entering the water passing holes 211 is increased, the better water cutting effect can be obtained, and the dewatering efficiency is further effectively improved.
The screening unit quantity is one or more, and screening unit includes one or more sieve piece 2, and water hole 211 and water cutting groove 212 all set up on sieve piece 2 surface, and when screening unit includes a plurality of sieve pieces 2, a plurality of sieve pieces 2 concatenation are fixed together.
The cross section between the two side walls of the water passing hole 211 is in an splayed structure, namely the water passing hole 211 is a through hole with a narrow upper part and a wide lower part, and thus the arrangement can effectively avoid the blockage of the water passing hole 211 by materials in the solid-liquid separation and dehydration process.
The supporting frame 1 comprises a first supporting bar 11 and a second supporting bar 12, wherein a plurality of first supporting bars 11 are arranged side by side, each end of two ends of the plurality of first supporting bars 11 is fixedly connected with one second supporting bar 12, and a screening unit is arranged between every two adjacent first supporting bars 11.
The sieve sheet 2 is made of polyurethane, has stronger wear resistance, and can greatly prolong the service life of the sieve plate; the first supporting bar 11 and the second supporting bar 12 are both square tube structures, and provide supporting strength for the sieve plate, and the square tube is lighter in weight and larger in occupied space compared with solid flat steel or square steel, so that the investment of polyurethane raw materials can be reduced when polyurethane is poured, and further the raw materials are saved and the cost is reduced.
The screening unit and the supporting frame 1 are fixedly connected together through the polyurethane filling layer, and when the screening unit comprises a plurality of screen pieces 2, every two adjacent screen pieces 2 in the screening unit are welded together. In the embodiment, a gap is arranged between each screening unit and the supporting frame 1, a polyurethane filling layer is poured in the gap, and the screening units and the supporting frame 1 are fixedly connected together through the polyurethane filling layer.
The sieve sheet 2 connected with the polyurethane filling layer is uniformly provided with a plurality of connectors 26 on the side wall facing the polyurethane filling layer, and the connectors 26 are embedded in the polyurethane filling layer. In this embodiment, the connector 26 is mushroom head structure, and the one side that the connector 26 kept away from sieve piece 2 upper surface sets up to the tangent plane 261 structure with corresponding first support bar 11 or second support bar 12 parallel and level, set up the tangent plane 261 structure of parallel and level for the first support bar 11 and the second support bar 12 of convenient installation carriage 1, first support bar 11 and second support bar 12 are located the connector 26 below of corresponding sieve piece 2, then pour polyurethane filling layer, strengthen the joint strength between polyurethane filling layer and the sieve piece 2 through connector 26, and set up connector 26 to mushroom head structure, after pouring polyurethane filling layer, mushroom head and polyurethane filling layer junction are the fixed structure of mutually colludeing, after the polyurethane filling layer solidifies, can not reduce the joint strength with the mushroom head because of the shrink.
The screen 2 comprises a top plate 21 and side plates 22, water passing holes 211 are formed in the top plate 21, the side plates 22 are downwards arranged around the top plate 21, four side plates 22 are enclosed to form a quadrilateral frame structure, cross supporting ribs 23 are arranged at the bottom of the top plate 21, reinforcing ribs 24 are arranged between every two adjacent rows of water passing holes 211, diagonal lacing wires 25 are arranged between two ends of each reinforcing rib 24 and the corresponding side plate 22, and connectors 26 are arranged outside the corresponding side plates 22. In this embodiment, a plurality of air exhaust columns 27 are disposed at the bottom of the top plate 21, polyurethane is poured into the mold for manufacturing the screen 2, in order to perform better air exhaust on the screen 2, damage to the strength of the screen 2 is reduced, some air exhaust grooves are disposed in the mold, after the polyurethane is poured into the mold, a small amount of polyurethane enters the air exhaust grooves, and after the screen 2 is demolded, the polyurethane in the air exhaust grooves forms the air exhaust columns 27 on the screen 2. In this embodiment, set up cross supporting rib 23, strengthening rib 24 and diagonal brace 25, effectively improve the intensity of sieve piece 2, and then improve the intensity of sieve, can prolong the life of sieve.
The screening unit is of an arc-shaped structure, the screening sheet 2 is of an arc-shaped structure, the first supporting bar 11 is of an arc-shaped structure, and the second supporting bar 12 is horizontally arranged.
In the embodiment, the sieve sheet 2 is a thermoplastic polyurethane elastomer and is of an integral injection molding structure; the polyurethane filling layer is thermosetting polyurethane.
The working procedure of this embodiment is as follows:
the arc-shaped sieve plate is arranged on the sieving machine, and the upper end of the water cutting groove 212 is arranged along the water flow, namely the water flow moves downwards along the upper end of the water cutting groove 212, flows into the water passing holes 211 through the inclined surface at the bottom of the water cutting groove 212, and finally is dehydrated and discharged through the water passing holes 211.
The application also provides a processing method for manufacturing the arc-shaped sieve plate, which is used for manufacturing the arc-shaped sieve plate when the sieving unit comprises a plurality of sieve sheets 2, and comprises the following steps:
A. cutting off the connector 26 at one side of each two adjacent sieve sheets 2 which are butted, and reserving the connector 26 towards one side of the supporting frame 1;
B. aligning and welding and fixing every two adjacent sieve sheets 2 together, and welding a plurality of sieve sheets 2 together in a rectangular array distribution mode to form a sieving unit;
C. sequentially placing a plurality of screening units at corresponding positions of the supporting frame 1, and pouring polyurethane into gaps between the groups of screen plates 2 and the supporting frame 1 to be fixedly connected together;
D. c, rolling the fixed connection structure of the screening unit and the supporting frame 1 formed in the step C to form an arc-shaped screen plate with a certain radian.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. An arc-shaped screen plate, which is characterized in that: including screening unit, braced frame, screening unit rigid coupling is inside braced frame to be equipped with a plurality of bars that are rectangular array and distribute on screening unit and cross water hole, all slope down has seted up the water cutting groove in the one side department that screening unit upper surface was located every and crossing water hole, and water cutting groove lower extreme and corresponding cross water hole and be linked together.
2. An arcuate screen deck as claimed in claim 1, wherein: the screening unit quantity is one or more, and screening unit includes one or more sieve piece, and water hole and water cutting groove all set up on sieve piece surface, and when screening unit includes a plurality of sieve pieces, a plurality of sieve pieces concatenation are fixed together.
3. An arcuate screen deck as claimed in claim 1, wherein: the section between the two side walls of the water passing hole is in an splayed structure.
4. An arcuate screen deck as claimed in claim 2, wherein: the supporting frame comprises a first supporting bar and a second supporting bar, a plurality of first supporting bars are arranged side by side, each end of two ends of each first supporting bar is fixedly connected with a second supporting bar, and a screening unit is arranged between every two adjacent first supporting bars.
5. An arcuate screen deck as defined in claim 4 wherein: the screening unit and the supporting frame are fixedly connected together through the polyurethane filling layer, and when the screening unit comprises a plurality of screening sheets, every two adjacent screening sheets in the screening unit are welded together.
6. An arcuate screen deck as set forth in claim 5 wherein: the sieve piece that is connected with polyurethane filling layer evenly is equipped with a plurality of connectors on the lateral wall towards polyurethane filling layer, and the connector inlays inside polyurethane filling layer.
7. An arcuate screen deck as defined in claim 6, wherein: the connector is mushroom head structure, and the connector is kept away from one side of sieve piece upper surface and is set up to the tangent plane structure, and first support bar and second support bar are located the mushroom head below department of corresponding sieve piece.
8. An arcuate screen deck as defined in claim 6, wherein: the screen plate comprises a top plate and side plates, water passing holes are formed in the top plate, the side plates are downwards arranged on the periphery of the top plate, four side plates enclose a quadrilateral frame structure, cross supporting ribs are arranged at the bottom of the top plate, reinforcing ribs are arranged between every two adjacent water passing holes, diagonal lacing wires are arranged between two ends of each reinforcing rib and the corresponding side plate, and connectors are located on the outer sides of the corresponding side plates.
9. A curved screen deck according to claim 3, wherein: the screening unit is the cambered surface structure, and the sieve piece is the cambered surface structure too, and first support bar is the cambered structure, and the second support bar level sets up.
10. A process for preparing a curved screen deck as claimed in any one of claims 1 to 9 for use in making a curved screen deck where the screening unit comprises a plurality of screening sheets, comprising the steps of:
A. cutting off the connector at one side of each two adjacent sieve sheets which are butted, and reserving the connector facing one side of the supporting frame;
B. aligning and welding and fixing every two adjacent sieve sheets together, and welding a plurality of sieve sheets together in a rectangular array distribution mode to form a sieving unit;
C. placing the screening unit at the corresponding position of the supporting frame, and pouring polyurethane into a gap between the screening unit and the supporting frame to be fixedly connected together;
D. c, rolling the screening unit and the supporting frame fixedly connected structure formed in the step C to form an arc-shaped screen plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310215466.2A CN116078008A (en) | 2023-03-07 | 2023-03-07 | Arc-shaped sieve plate and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310215466.2A CN116078008A (en) | 2023-03-07 | 2023-03-07 | Arc-shaped sieve plate and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116078008A true CN116078008A (en) | 2023-05-09 |
Family
ID=86208448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310215466.2A Pending CN116078008A (en) | 2023-03-07 | 2023-03-07 | Arc-shaped sieve plate and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116078008A (en) |
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2023
- 2023-03-07 CN CN202310215466.2A patent/CN116078008A/en active Pending
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