CN215507789U - Variable-aperture screen for screening strip-shaped catalyst - Google Patents
Variable-aperture screen for screening strip-shaped catalyst Download PDFInfo
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- CN215507789U CN215507789U CN202120935437.XU CN202120935437U CN215507789U CN 215507789 U CN215507789 U CN 215507789U CN 202120935437 U CN202120935437 U CN 202120935437U CN 215507789 U CN215507789 U CN 215507789U
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Abstract
The utility model discloses a variable-aperture screen for screening a strip-shaped catalyst, which structurally comprises a screen surface, wherein the screening length of the screen facing the strip-shaped catalyst is greater than the diameter of the strip-shaped catalyst, the screen surface is divided into a fine-aperture area and a coarse-aperture area, the aperture of the fine-aperture area is smaller than that of the strip-shaped catalyst, the diameter of the strip-shaped catalyst is smaller than that of the coarse-aperture area and is smaller than that of the screen facing the strip-shaped catalyst, a partition plate is arranged between the coarse-aperture area and the fine-aperture area, and the partition plate, the fine-aperture area and the coarse-aperture area are on the same horizontal plane.
Description
The technical field is as follows:
the utility model relates to the technical field of production of strip-shaped catalysts, in particular to a variable-aperture screen for screening strip-shaped catalysts.
Background art:
in the production process of the strip catalyst, sieving and screening are carried out in each procedure in the discharging process, so as to separate strips with different lengths and simultaneously sieve out fine powder. The conventional screening machine is composed of a plurality of layers of screens, each layer of screen can only be formed by laying a metal net with one aperture, strip-shaped materials fall into the screening machine in the vibrating screening process of the screening machine and then lie on the screen, and the length of the screened strip is determined by the aperture of the screen. The screen cloth upper strata is stayed to the strip that length is greater than screen cloth aperture, and the strip that length is less than screen cloth aperture falls into lower floor's screen cloth, however in view of the aperture of several preceding layers of screen cloth often is greater than the diameter of strip, and the bar material is in the twinkling of an eye of whereabouts, because upright and directly pierce through the screen cloth aperture, leads to partial length to exceed the strip in screen cloth aperture, directly falls into the lower floor, makes lower floor sieve material length inhomogeneous, has reduced the qualification rate that the corresponding specification of bar catalyst was screened.
The utility model has the following contents:
the present invention aims to provide a variable aperture screen for screening strip catalysts that solves one or more of the above mentioned problems of the prior art.
In order to solve the technical problems, the utility model provides a screen with variable aperture for screening strip-shaped catalysts, which structurally comprises a screen surface, wherein the screening length of the screen surface facing the strip-shaped catalysts is greater than the diameter of the strip-shaped catalysts, and the innovation points are as follows: the screen surface is divided into a fine hole area and a coarse hole area, the aperture of the fine hole area is smaller than the diameter of the strip-shaped catalyst, and the aperture of the strip-shaped catalyst is smaller than the screening length of the screen surface facing the strip-shaped catalyst;
and a partition plate is arranged between the coarse hole area and the fine hole area, and the partition plate, the fine hole area and the coarse hole area are on the same horizontal plane.
Furthermore, a plurality of separation grooves are arranged on the separation plate, and two ends of each separation groove are respectively communicated with the fine hole area and the coarse hole area;
the inside of separating the groove is equipped with the locating part of a plurality of restriction strip catalyst velocity of flow, and a plurality of locating parts arrange along the extending direction of separating the groove.
Furthermore, the limiting part comprises a fixing rod arranged in the separation groove and a baffle plate fixed on the fixing rod in an inclined mode, the inclined direction of the baffle plate faces the thick hole area, a flowing groove is formed between the baffle plate and the separation plate, and the distance between the end portion of the baffle plate and the separation plate is smaller than the diameter or the length of the strip-shaped catalyst.
Furthermore, the screen is rectangular, and the partition plate is long-strip-shaped, so that the fine hole area and the coarse hole area are separated from each other left and right.
Furthermore, the screen is circular, and the partition plate is circular, so that the fine hole area and the coarse hole area are separated from each other.
The utility model has the beneficial effects that:
1. the utility model provides a variable-aperture screen for screening a strip-shaped catalyst, when the screening length of the strip-shaped catalyst is greater than the diameter of the strip-shaped catalyst, the strip-shaped catalyst is preferentially placed in a fine-aperture area, the strip-shaped catalyst can only be kept in a flat lying state in the fine-aperture area according to the aperture setting of a screen surface on the fine-aperture area, then the strip-shaped catalyst in the flat lying state enters a coarse-aperture area through a partition plate, the aperture of the screen surface on the coarse-aperture area is set according to the strip-shaped catalyst with the corresponding screening length, the strip-shaped catalyst with the length meeting requirement is left in the coarse-aperture area, the strip-shaped catalyst with the length not meeting the requirement enters a screen surface of a next layer through the coarse-aperture area for continuous screening, the strip-shaped catalyst is prevented from passing through the screen surface in a vertical state, and the screening qualification rate of the strip-shaped catalyst with the corresponding specification is improved.
2. The utility model provides a variable-aperture screen for screening strip-shaped catalysts, wherein when the strip-shaped catalysts flow to a coarse-aperture area through a separation plate, the setting of separation grooves enables the regulated catalysts to flow to the coarse-aperture area along the separation grooves one by one, so that the strip-shaped catalysts on the screen surface are separated, and the strip-shaped catalysts can be prevented from accumulating and flowing to the coarse-aperture area.
3. The utility model provides a variable-aperture screen for screening strip-shaped catalysts, wherein when the strip-shaped catalysts flow in a separation tank, a limiting part can limit the flow velocity of the strip-shaped catalysts, so that the strip-shaped catalysts in the separation tank can slowly flow to a thick-aperture region, and the slow flow velocity of the strip-shaped catalysts not only prevents a large amount of strip-shaped catalysts from flowing into the thick-aperture region, ensures that the thick-aperture region can fully and completely screen the strip-shaped catalysts with corresponding lengths, but also can ensure that the strip-shaped catalysts can stay in the thin-aperture region for a longer time, and ensures that the strip-shaped catalysts can completely lie on the thin-aperture region.
Description of the drawings:
FIG. 1 is a top cross-sectional view of a rectangular screen surface of the present invention.
Figure 2 is a top cross-sectional view of a circular screen surface of the present invention.
Fig. 3 is a side cross-sectional view of the surface of a separator plate according to the present invention.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Fig. 1 to 3 show an embodiment of the present invention, which has a structure comprising a screen surface 1, wherein the screening length of the screen surface 1 to a bar-shaped catalyst is longer than the diameter of the bar-shaped catalyst, the screen surface 1 is divided into a fine pore region 11 and a coarse pore region 12, the pore diameter of the fine pore region 11 is smaller than the diameter of the bar-shaped catalyst, and the pore diameter of the bar-shaped catalyst is smaller than the pore diameter of the coarse pore region 12 is smaller than the screening length of the screen surface 1 to the bar-shaped catalyst;
a partition plate 2 is arranged between the rough hole area 12 and the fine hole area 11, and the partition plate 2, the fine hole area 11 and the rough hole area 12 are on the same horizontal plane.
In the utility model, when the screen surface 1 screens the strip-shaped catalyst, the length of the strip-shaped catalyst is gradually screened from large to small by using multiple layers of screen surfaces 1, the screening length of the strip-shaped catalyst is often larger than the diameter of the strip-shaped catalyst in the first few layers of screen surfaces 1 which are initially screened, the aperture of the screen surface 1 is often larger than the diameter of the strip-shaped catalyst in order to screen the strip-shaped catalyst with the length, in order to avoid the strip-shaped catalyst passing through the screen surfaces 1 in a vertical state, the strip-shaped catalyst is preferentially placed in a fine pore area 11, the strip-shaped catalyst can only be kept in a horizontal state in the fine pore area 11 according to the aperture of the screen surface 1 on the fine pore area 11, then the strip-shaped catalyst in the horizontal state enters a coarse pore area 12 through a partition plate 2, the aperture of the screen surface 1 on the coarse pore area 12 is set according to the screening of the strip-shaped catalyst with the corresponding length, the strip-shaped catalyst with the length being accordant is remained in the coarse hole area 12, and the strip-shaped catalyst with the length not being accordant enters the next layer of screen surface 1 through the coarse hole area 12 to be screened continuously.
In the present invention, as a preferable scheme, the partition plate 2 is divided into a plurality of strip-shaped partition grooves 3 by a plurality of partition strips 100, and two ends of each partition groove 3 are respectively communicated with the fine hole area 11 and the coarse hole area 12;
a plurality of limiting pieces 4 for limiting the flow velocity of the strip-shaped catalyst are arranged in the separation groove 3, and the limiting pieces 4 are arranged along the extending direction of the separation groove 3.
In the utility model, when the strip-shaped catalyst flows to the coarse pore region 12 through the separation plate 2, the separation groove 3 is set to enable the regulated catalyst to flow to the coarse pore region 12 along the separation groove 3 one by one, so that the strip-shaped catalyst on the screen surface 1 is separated, further the strip-shaped catalyst is prevented from accumulating and flowing to the coarse pore region 12, secondly, when the strip-shaped catalyst flows in the separation tank 3, the limiting piece 4 can limit the flow velocity of the strip-shaped catalyst, so that the strip-shaped catalyst in the separation tank 3 can slowly flow to the coarse hole area 12, the slow flow rate of the strip-shaped catalyst not only prevents a large amount of strip-shaped catalyst from flowing into the coarse pore region 12, ensures that the coarse pore region 12 can fully and completely screen the strip-shaped catalyst with corresponding length, but also the strip-shaped catalyst can stay in the fine pore area 11 for a longer time, and the strip-shaped catalyst can be ensured to be completely laid on the fine pore area 11.
In the present invention, it is preferable that the stopper 4 includes a fixing rod 41 disposed inside the separation tank 3 and a baffle plate 42 fixed to the fixing rod 41 in an inclined manner, the baffle plate 42 is inclined toward the wide hole region 12, the flow channel 5 is formed between the baffle plate 42 and the partition plate 2, and the distance between the end of the baffle plate 42 and the partition plate 2 is smaller than the diameter or the length of the catalyst rod.
In the present invention, the distance between the end of the baffle plate 42 and the end of the partition plate 2 is set so that the strip-shaped catalyst can pass through only the inside of the flow channel 5, and the flow channel 5 is designed to have a corresponding width according to the flow rate requirement of the strip-shaped catalyst, the present invention takes the flow channel 5 capable of accommodating 3-5 strip-shaped catalysts as an optimal solution,
example 1
As shown in fig. 1, in the present embodiment, the screen surface 1 is rectangular, the partition plate 2 is elongated so as to partition the fine pore region 11 and the coarse pore region 12 from left to right, and the partition bar 100 is elongated.
In this embodiment, when the rectangular screen surface 1 is used to screen a catalyst bar, the screen surface 1 is disposed obliquely, the fine pore region 11 is located at the upper end of the inclination, the coarse pore region 12 is located at the lower end of the inclination, and during screening of the catalyst bar, the catalyst bar slides down from the fine pore region 11 toward the coarse pore region 12.
Example 2
As shown in fig. 2, in the present embodiment, the screen surface 1 is circular, the partition plate 2 is circular so as to separate the fine pore region 11 and the coarse pore region 12 from each other, and the partition bar 100 has a trapezoidal shape.
In this embodiment, when the round screen surface 1 screens the strip-shaped catalyst, the screen surface 1 is in a horizontal state, the fine pore region 11 is located at the center of the circular surface, the coarse pore region 12 is located at the edge of the circular surface, and the strip-shaped catalyst gradually diffuses from the fine pore region 11 to the coarse pore region 12 in the screening process of the strip-shaped catalyst.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a become aperture screen cloth for sieving bar catalyst, its structure includes screen cloth face (1), screen cloth face (1) is greater than the diameter of bar catalyst to the screening length of bar catalyst, its characterized in that: the screen surface (1) is divided into a fine pore area (11) and a coarse pore area (12), the pore diameter of the fine pore area (11) is smaller than the diameter of the strip-shaped catalyst, and the pore diameter of the strip-shaped catalyst is smaller than the pore diameter of the coarse pore area (12) and is smaller than the screening length of the screen surface (1) on the strip-shaped catalyst;
a partition plate (2) is arranged between the coarse hole area (12) and the fine hole area (11), and the partition plate (2), the fine hole area (11) and the coarse hole area (12) are on the same horizontal plane.
2. The screen mesh with the variable aperture for screening the strip-shaped catalyst as claimed in claim 1, wherein: the partition plate (2) is divided into a plurality of strip-shaped partition grooves (3) by a plurality of partition strips (100), and two ends of each partition groove (3) are respectively communicated with the thin hole area (11) and the thick hole area (12);
the inside of separating the groove (3) is equipped with a plurality of locating parts (4) of restricting the strip catalyst velocity of flow, a plurality of locating parts (4) along the extending direction of separating the groove (3) arranges.
3. The screen mesh with the variable aperture for screening the strip-shaped catalyst as claimed in claim 2, wherein: the limiting piece (4) comprises a fixing rod (41) arranged in the separation groove (3) and a baffle (42) fixed on the fixing rod (41) in an inclined mode, the inclined direction of the baffle (42) faces the rough hole area (12), a flowing groove (5) is formed between the baffle (42) and the separation plate (2), and the distance between the end portion of the baffle (42) and the separation plate (2) is smaller than the diameter or the length of the strip-shaped catalyst.
4. A variable aperture screen for screening catalyst bars as claimed in any one of claims 2 to 3, wherein: the screen surface (1) is rectangular, the partition plate (2) is long-strip-shaped, so that the fine hole area (11) and the coarse hole area (12) are separated from each other left and right, and the partition strip (100) is long-strip-shaped.
5. A variable aperture screen for screening catalyst bars as claimed in any one of claims 2 to 3, wherein: the screen surface (1) is circular, the partition plate (2) is circular, so that the fine hole area (11) and the coarse hole area (12) are separated from one another, and the partition strip (100) is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935437.XU CN215507789U (en) | 2021-05-05 | 2021-05-05 | Variable-aperture screen for screening strip-shaped catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935437.XU CN215507789U (en) | 2021-05-05 | 2021-05-05 | Variable-aperture screen for screening strip-shaped catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215507789U true CN215507789U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120935437.XU Active CN215507789U (en) | 2021-05-05 | 2021-05-05 | Variable-aperture screen for screening strip-shaped catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215507789U (en) |
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2021
- 2021-05-05 CN CN202120935437.XU patent/CN215507789U/en active Active
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