CN212077479U - Novel mounting structure of pressure screen drum - Google Patents
Novel mounting structure of pressure screen drum Download PDFInfo
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- CN212077479U CN212077479U CN202020700349.7U CN202020700349U CN212077479U CN 212077479 U CN212077479 U CN 212077479U CN 202020700349 U CN202020700349 U CN 202020700349U CN 212077479 U CN212077479 U CN 212077479U
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Abstract
The utility model discloses a novel mounting structure of a pressure screen drum, which comprises a screen drum mainly composed of an upper flange of the screen drum, a screen body and a lower flange of the screen drum, wherein a shell upper flange is arranged at the position on a pressure screen shell corresponding to the upper flange of the screen drum, the upper end surface of the shell upper flange is provided with a mounting groove, the screen drum upper flange is placed in the mounting groove, the upper end surface of the screen drum upper flange is pressed by a pressure screen upper cover, and a gap is reserved between the lower end surface of the pressure screen upper cover and the shell upper flange; the upper cover of the pressure screen passes through a fixing bolt to be connected with the upper flange of the shell, so that the upper flange of the screen cylinder is tightly pressed on the upper flange of the shell. The utility model discloses a simplify equipment structure, do not adopt the bolt fastening screen cylinder, change into and borrow the pressure screen upper cover and compress tightly the screen cylinder, through the optimization to current equipment structure, realized reducing artifical consumption, eliminate the purpose of hidden danger.
Description
Technical Field
The utility model relates to a papermaking equipment technical field especially relates to a novel mounting structure of pressurized screen drum.
Background
In the paper making process, screening and purifying of paper pulp is an important process for improving the quality of finished paper. Two-stage or even three-stage screening processes are often required to screen out most of the impurities in the pulp. In the present paper making equipment, the pressure screen is the main equipment for carrying out the process, and the screen cylinder is the core component of the pressure screen.
The structure of the screen cylinder is usually a steel plate densely distributed with a plurality of micropores, the steel plate is rolled into a cylinder, and the upper end and the lower end of the cylinder are provided with two flanges. Or a plurality of wedge-shaped bars are used to form a cylinder, and two flanges are also arranged at two ends of the cylinder. The two flanges function to secure and position the screen cylinder during installation.
The conventional screen cylinder is fixed by a plurality of holes arranged on an upper flange by using a screw. However, this mounting method has the following two disadvantages: firstly, at the maintenance in-process, need dismantle installation fixing bolt, consume a large amount of time and manpower consumption. Secondly, in the process of assembling and disassembling the bolt, the bolt is easy to fall into the pressure screen, so that immeasurable loss is caused. SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a novel mounting structure of pressurized screen drum, its use pressurized screen upper cover compresses tightly fixedly to the screen drum, and fundamentally has solved the screen drum installation and has wasted time and energy to there is the shortcoming of potential hidden danger.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a novel mounting structure of a pressure screen drum comprises a screen drum mainly composed of a screen drum upper flange, a screen body and a screen drum lower flange, wherein a shell upper flange is arranged on a pressure screen shell at a position corresponding to the screen drum upper flange, a mounting groove is formed in the upper end face of the shell upper flange, the screen drum upper flange is placed in the mounting groove, a pressure screen upper cover is pressed on the upper end face of the screen drum upper flange, and a gap is reserved between the lower end face of the pressure screen upper cover and the shell upper flange; the upper cover of the pressure screen passes through a fixing bolt to be connected with the upper flange of the shell, so that the upper flange of the screen cylinder is tightly pressed on the upper flange of the shell.
The mounting groove is an annular groove and is arranged at the position, close to the inner ring, of the upper end face of the flange on the shell.
The fixing bolts are circumferentially arranged at the upper cover of the pressure screen.
A gap is reserved between the outer ring of the upper flange of the screen cylinder and the mounting groove of the upper flange of the shell, and a sealing ring is arranged in the gap.
And hoisting screw holes are formed in the upper flange of the screen cylinder.
The pressure screen shell is provided with a shell lower flange at a position corresponding to the screen cylinder lower flange, the screen cylinder lower flange is provided with a positioning groove, a positioning block is fixed at a position corresponding to the positioning groove on the shell lower flange, and the positioning block is embedded in the positioning groove.
The utility model has the advantages that:
the utility model discloses a simplify equipment structure, do not adopt the bolt fastening screen cylinder, change into and borrow the pressure screen upper cover and compress tightly the screen cylinder. The utility model discloses starting from the source, through the optimization to the existing equipment structure, realized reducing artifical consumption, the purpose of eliminating the hidden danger can reduce the time that screen cylinder dismouting in-process needs in a large number.
Drawings
FIG. 1 is a schematic view of a screen cylinder of the present invention;
fig. 2 is a schematic view of the installation structure of the screen cylinder of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 2, the novel mounting structure of a pressure screen cylinder of the present embodiment includes a screen cylinder mainly composed of an upper flange 2, a screen body 3 and a lower flange 4, wherein a plurality of hoisting screw holes 1 are uniformly distributed on the upper flange 2, and the hoisting screw holes are used for installing hoisting bolts during installation and disassembly. The bottom of the lower screen cylinder flange 4 is provided with a positioning groove 5.
The pressure screen shell is provided with a shell upper flange 9 corresponding to the screen cylinder upper flange 2, and a shell lower flange 10 corresponding to the screen cylinder lower flange 4.
The upper end surface of the upper flange 9 of the shell is provided with an installation groove, the upper flange 2 of the screen cylinder is placed in the installation groove, the upper cover 6 of the pressure screen is tightly pressed on the upper end surface of the upper flange 2 of the screen cylinder, at the moment, the lower end surface of the upper cover 6 of the pressure screen is not tightly attached to the upper flange 9 of the shell, but a small gap 12 exists; the pressure screen upper cover 6 is connected with the shell upper flange 9 through a fixing bolt 8, and the fixing bolt 8 is circumferentially arranged at the pressure screen upper cover 6. When the fixing bolts 8 are tightened, the upper screen cylinder flange 2 is pressed tightly against the upper casing flange 9.
Simultaneously, there is a space between the outer lane of flange 2 on the screen cylinder and the mounting groove on the flange 9 on the casing, can set up an O type sealing washer 7 in this space, plays sealed effect to can reduce the processing degree of difficulty of casing.
Because at the pressure screen during operation, wherein thick liquids are at the inside quick rotation of screen frame 3, and thick liquids will give a pivoted trend for the screen cylinder this moment, in order to offset this trend, at the lower terminal surface of casing lower flange 10, the fixed locating piece 11 that is provided with just in time cooperates with the constant head tank 5 that sets up on screen cylinder lower flange 4, and locating piece 11 inlays to be established in constant head tank 5, makes the screen cylinder be unlikely to take place rotatory skew.
The utility model discloses a simplify equipment structure, do not adopt the bolt fastening screen cylinder, change into and borrow the pressure screen upper cover and compress tightly the screen cylinder. The utility model discloses starting from the source, through the optimization to the existing equipment structure, realized reducing artifical consumption, the purpose of eliminating the hidden danger can reduce the time that screen cylinder dismouting in-process needs in a large number.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
In the description of the present invention, it should be understood that the terms "front", "back", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (6)
1. The utility model provides a novel mounting structure of pressurized screen cylinder, includes the screen cylinder that mainly has flange, screen frame and flange constitution under the screen cylinder on the screen cylinder, correspond the department with the flange on the screen cylinder on the pressurized screen casing and be equipped with flange on the casing, its characterized in that: the upper end surface of the upper flange of the shell is provided with an installation groove, the upper flange of the screen cylinder is placed in the installation groove, the upper cover of the pressure screen is pressed on the upper end surface of the upper flange of the screen cylinder, and a gap is reserved between the lower end surface of the upper cover of the pressure screen and the upper flange of the shell; the upper cover of the pressure screen passes through a fixing bolt to be connected with the upper flange of the shell, so that the upper flange of the screen cylinder is tightly pressed on the upper flange of the shell.
2. The novel mounting structure of a pressure screen cylinder of claim 1, characterized in that: the mounting groove is an annular groove and is arranged at the position, close to the inner ring, of the upper end face of the flange on the shell.
3. The novel mounting structure of a pressure screen cylinder of claim 1, characterized in that: the fixing bolts are circumferentially arranged at the upper cover of the pressure screen.
4. The novel mounting structure of a pressure screen cylinder of claim 1, characterized in that: a gap is reserved between the outer ring of the upper flange of the screen cylinder and the mounting groove of the upper flange of the shell, and a sealing ring is arranged in the gap.
5. The novel mounting structure of a pressure screen cylinder of claim 1, characterized in that: and hoisting screw holes are formed in the upper flange of the screen cylinder.
6. The new installation structure of a screen cylinder of a pressure screen according to any one of claims 1 to 5, characterized in that: the pressure screen shell is provided with a shell lower flange at a position corresponding to the screen cylinder lower flange, the screen cylinder lower flange is provided with a positioning groove, a positioning block is fixed at a position corresponding to the positioning groove on the shell lower flange, and the positioning block is embedded in the positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700349.7U CN212077479U (en) | 2020-04-30 | 2020-04-30 | Novel mounting structure of pressure screen drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700349.7U CN212077479U (en) | 2020-04-30 | 2020-04-30 | Novel mounting structure of pressure screen drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212077479U true CN212077479U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020700349.7U Active CN212077479U (en) | 2020-04-30 | 2020-04-30 | Novel mounting structure of pressure screen drum |
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| CN (1) | CN212077479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442914A (en) * | 2020-12-30 | 2021-03-05 | 郑州运达造纸设备有限公司 | Wear-resistant sealing pressure screen and pressure screen upper cover |
-
2020
- 2020-04-30 CN CN202020700349.7U patent/CN212077479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442914A (en) * | 2020-12-30 | 2021-03-05 | 郑州运达造纸设备有限公司 | Wear-resistant sealing pressure screen and pressure screen upper cover |
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