CN213194470U - Cylindrical screen with external screen mesh - Google Patents

Abstract

The utility model discloses an external drum sieve of screen cloth, including bank of screens and screen cloth, the bank of screens comprises the vertical girder of a plurality of parallels and the annular girder of a plurality of parallels, the girder includes the riser of bottom plate and vertical fixation in bottom plate surface, and the transversal T type of personally submitting of girder lays the cambered surface screen cloth between per two adjacent girders respectively, and the outside of girder bottom plate is arranged in to the frame of every screen cloth, fixed connection can be dismantled through the clamp plate to screen cloth and girder linking department. The clamp plate is L type, and the screen cloth compresses tightly on the girder bottom plate through L type clamp plate, passes through the bolt fastening between clamp plate and the girder. The frame of the screen is gradually thickened towards the edge direction, so that a certain gradient is formed; the bottom surface of the pressing plate is arranged into an inclined surface, and the inclined surface is matched with the slope of the screen frame to prevent the screen from slipping. The utility model discloses the dismantlement of the screen cloth of being convenient for is changed, can shorten maintenance duration and maintenance cost by a wide margin.

Description

Cylindrical screen with external screen mesh

Technical Field

The utility model relates to a drum sieve, especially an external drum sieve of screen cloth.

Background

The cylindrical sieve is used for sieving solid materials, the cylindrical sieve rotates, the materials rotate and are stirred in the cylindrical sieve, small materials or moisture are separated from sieve pores of the cylindrical sieve, and large materials remain in the cylindrical sieve, so that the functions of separating or classifying the materials are achieved. The cylindrical screen can be widely used for screening dry and wet powdery or granular materials in the industries of metallurgy, building materials, chemical industry, medicine, grinding materials, chemical fertilizers and the like.

There are two types of cylindrical screens commonly used: the first type is integral, namely the screen and the screen frame are welded into a whole; the two-position screen mesh type is arranged in the screen frame, namely the screen mesh is arranged and fixed in the screen frame. When the screen is partially worn, the integral cylindrical screen needs to be replaced integrally; the guide plate, the pressing bar and the like inside the built-in screen mesh type screen mesh can be detached and replaced, and some screen meshes even the whole cylinder screen mesh needs to be detached. This causes inconvenience in maintenance and an increase in cost.

SUMMERY OF THE UTILITY MODEL

To the problem that current drum sieve daily maintenance and change of not being convenient for, the utility model provides an external drum sieve of screen cloth is convenient for change and dismantles the screen cloth, shortens maintenance duration and maintenance cost by a wide margin.

The utility model adopts the technical proposal that: the utility model provides an external drum sieve of screen cloth, includes bank of screens and screen cloth, the bank of screens comprises the vertical girder of a plurality of parallels and the annular girder of a plurality of parallels, the girder includes the riser of bottom plate and vertical fixation in bottom plate surface, and the transversal T type of personally submitting of girder, lays the cambered surface screen cloth between per two adjacent girders respectively, and the outside of girder bottom plate is arranged in to the frame of every screen cloth, screen cloth and girder link up the department and can dismantle fixed connection through the clamp plate.

Furthermore, the pressing plate is L-shaped, the screen is tightly pressed on the bottom plate of the main beam through the L-shaped pressing plate, and the pressing plate and the main beam are fixed through bolts.

Furthermore, mounting holes are formed in the vertical plates of the L-shaped pressing plate and the vertical plates of the main beams, and the L-shaped pressing plate and the main beams are fixed in the mounting holes through bolts.

Furthermore, the frame of the screen is gradually thickened towards the edge direction, so that a certain gradient is formed; the bottom surface of the pressing plate is arranged into an inclined surface, and the inclined surface is matched with the slope of the screen frame to prevent the screen from slipping.

Still further, the screen is made of polyurethane, rubber or steel.

The utility model has the advantages that: the screen cloth is fixed on the outer side of the screen frame, and the screen cloth is arranged independently by adopting the plurality of screen cloth, when the screen cloth is used and maintained, the worn screen cloth can be detached conveniently from the outer side of the cylindrical screen, the new screen cloth is replaced, the whole screen does not need to be replaced or detached, the maintenance time and the maintenance cost are greatly shortened, and the economic effect is remarkable. Moreover, the cylindrical screen is simple in overall structure, easy to manufacture and install and very strong in practicability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the joint of the main beam and the pressing plate of the present invention.

In the figure, 1 is a main beam, 2 is a screen, 3 is a long pressure plate, 4 is a bolt, and 5 is a short pressure plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the cylindrical screen with the external screen comprises a screen frame and a screen 2, wherein the screen frame is integrally cylindrical, and the screen frame is formed by welding a plurality of parallel longitudinal main beams 1 and a plurality of parallel annular main beams 1.

The cross section of the main beam 1 is T-shaped, the main beam 1 is composed of a strip-shaped or annular bottom plate and a vertical plate vertically fixed on the outer surface of the bottom plate, the bottom plate is located on the inner side of the sieve frame, and the vertical plate is located on the outer side of the sieve frame. Cambered surface screen cloth 2 is laid respectively between per two adjacent girders, and the outside of girder 1 bottom plate is arranged in to the frame of every screen cloth 2, screen cloth 2 can dismantle fixed connection through the clamp plate with girder 1 linking department.

Preferably, the pressing plate is L-shaped, the pressing plate can be made of angle steel, the screen 2 is pressed on a bottom plate of the main beam 1 through the L-shaped pressing plate, and the pressing plate and the main beam 1 are fixed through bolts 4. In order to facilitate the disassembly, mounting holes are formed in the vertical plates of the L-shaped pressing plate and the vertical plate of the main beam 1, and the bolt 4 is fixed in the mounting holes so as to tightly press the screen. In the specific implementation process, the long pressing plate 3 is adopted as the pressing plate matched with the longitudinal main beam 1, and the short pressing plate 5 is adopted as the pressing plate matched with the annular main beam 1.

In order to avoid the screen 2 from slipping outwards under stress in use, the frame of the screen 2 is gradually thickened towards the edge direction, so that a certain gradient is formed; meanwhile, the bottom surface of the pressing plate is set to be an inclined surface which is matched with the gradient of the frame of the screen 2. After the inclined plane of clamp plate bottom and the slope lock of 2 frames departments of screen cloth, fix clamp plate and girder 1 with bolt 4 and can accomplish the installation of screen cloth 2. The inclined plane at the bottom of the pressing plate can be directly processed, or can be prefabricated by using materials such as steel plates, polyurethane and the like, and then the inclined plane is compounded on the bottom surface of the pressing plate by means of welding, bonding and the like.

The screen 2 is arranged independently in blocks, so that local disassembly and replacement are convenient to carry out when the screen is damaged. The screen 2 may be made of a wear resistant material such as polyurethane, rubber or steel. When the screen mesh is made of polyurethane or rubber, a rigid skeleton such as round steel or flat steel, or a flexible skeleton such as a cord can be added inside according to actual conditions.

During the installation, detain screen cloth 2 on the bank of screens from the bank of screens outside, make 2 frames intrados of screen cloth and 1 bottom plates laminating of bank of screens T type girder to press down screen cloth 2 frames with L type clamp plate, compress tightly screen cloth 2 frames on the bottom plate of bank of screens girder 1, then pass the mounting hole of L type clamp plate and 1 risers of girder with bolt 4 simultaneously, and fasten L type clamp plate on bank of screens girder 1. The press plate is matched with the frame of the screen 2 by adopting an inclined plane, so that the screen can be well prevented from slipping outwards when being stressed in use. When the screen cloth is disassembled, the L-shaped pressing plate 3 and the screen cloth 2 can be taken down only by disassembling the bolts 4. The installation and the disassembly are very convenient.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.

Claims (5)

1. The utility model provides an external cylinder sieve of screen cloth, includes bank of screens and screen cloth (2), its characterized in that: the sieve frame comprises vertical girder (1) and the annular girder (1) of a plurality of parallels, girder (1) includes the riser of bottom plate and vertical fixation in bottom plate surface, and girder (1) is transversal personally submits the T type, lays cambered surface screen cloth (2) respectively between per two adjacent girder (1), and the outside of girder (1) bottom plate is arranged in to the frame of every screen cloth (2), screen cloth (2) can dismantle fixed connection through the clamp plate with girder (1) linking department.

2. The cylindrical screen with an external screen as claimed in claim 1, wherein: the clamp plate is L-shaped, the screen (2) is pressed on the bottom plate of the main beam (1) through the L-shaped clamp plate, and the clamp plate and the main beam (1) are fixed through the bolt (4).

3. The cylindrical screen with an external screen as claimed in claim 2, wherein: mounting holes are formed in vertical plates of the L-shaped pressing plate and vertical plates of the main beam (1), and bolts (4) are fixed in the mounting holes.

4. The cylindrical screen with an external screen as claimed in claim 3, wherein: the frame of the screen (2) is gradually thickened towards the edge direction, so that a certain gradient is formed; the bottom surface of the pressing plate is arranged into an inclined plane, and the inclined plane is matched with the slope of the frame of the screen (2) to prevent the screen (2) from slipping.

5. A cylindrical screen with an external screen as claimed in any one of claims 1 to 4, wherein: the screen (2) is made of polyurethane, rubber or steel.

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