Filter bag mounting structure of centrifugal machine

Abstract

The invention relates to the field of centrifugal machine filter bags, in particular to a centrifugal machine filter bag installation structure which can enable a filter bag and a rotary drum to be installed together in an attached mode and is convenient to disassemble and assemble. Comprising a filter bag, a first annular boss is fixedly arranged on the outer side of an upper opening of the filter bag, a second annular boss is fixedly arranged on the outer side of an upper opening of a rotary drum, a first fixing hole and a second fixing hole are formed in the first annular boss and the second annular boss, a bolt penetrates through the first fixing hole and the second fixing hole, and a locking nut is arranged at the penetrating-out end of the bolt; a plurality of vertical first magnetic strips are fixedly arranged on the peripheral surface of the filter bag at intervals, and second magnetic strips matched with the first magnetic strips in an attraction manner are arranged on the inner surface of the rotary drum; third magnetic strips are circumferentially arranged on the outer surface of the bottom of the filter bag around the center at intervals, and fourth magnetic strips in attraction fit with the third magnetic strips are arranged on the upper surface of the bottom in the drum. The device is easy to operate, convenient to use and suitable for centrifugal machines of various specifications.

Description

Technical Field

[0001] This invention relates to the field of centrifuge filter bags, specifically to a centrifuge filter bag mounting structure. Background Technology

[0002] A flat-plate centrifuge is an industrial separation device with a platform structure, mainly composed of a drum, shell, drive unit, and control system. Its working principle is to achieve solid-liquid separation by generating a centrifugal force field through high-speed rotation. The filtrate is discharged through an outlet pipe, and the filter residue is unloaded using a hoisting tool. In this type of flat-plate centrifuge, filter bags are installed inside the drum, and the material is placed inside the filter bags. Separation is achieved through high-speed rotation. However, when processing materials with extremely low solid-liquid ratios, the material is too small to compact the filter bags properly, resulting in a lack of proper fit between the filter bags and the inside of the centrifuge drum. Friction occurs during centrifugation, causing wear on the filter bags, allowing material to pass through the damaged areas. This results in inadequate solid-liquid separation and dehydration, requiring rework, complicating operation, and reducing work efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a centrifuge filter bag mounting structure that can fit the filter bag snugly against the rotating drum and facilitates easy assembly and disassembly, effectively solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a centrifuge filter bag installation structure, comprising a filter bag disposed in a rotating drum, the filter bag being a cylindrical tube with an open top, a conical protrusion embedded at the bottom, a first annular protrusion fixedly disposed on the outer side of the upper opening of the filter bag, and a second annular protrusion fixedly disposed on the outer side of the upper opening of the rotating drum, the first annular protrusion and the second annular protrusion being provided with a first fixing hole and a second fixing hole that vertically overlap, a bolt passing through the first fixing hole and the second fixing hole, and a locking nut being provided at the protruding end of the bolt;

[0005] The outer circumferential surface of the filter bag is provided with a plurality of vertical first magnetic strips fixed at intervals, and the inner surface of the drum is provided with second magnetic strips that attract and cooperate with the first magnetic strips;

[0006] The bottom outer surface of the filter bag is provided with a third magnetic strip spaced around the center in a circumferential direction, and the bottom upper surface of the inner drum is provided with a fourth magnetic strip that attracts and cooperates with the third magnetic strip.

[0007] As a preferred technical solution, the first magnetic strip and the second magnetic strip are respectively in the shape of a vertical rectangle.

[0008] As a preferred technical solution, the third and fourth magnetic strips are respectively shaped as horizontal rectangles.

[0009] As a preferred technical solution, the lengths of the first magnetic strip and the second magnetic strip are respectively less than the height of the filter bag.

[0010] As a preferred technical solution, the lengths of the third and fourth magnetic strips are respectively smaller than the radius of the vertical projection of the filter bag.

[0011] As a preferred technical solution, the outer surfaces of the upper and lower ends of the first magnetic strip are respectively provided with cylindrical protrusions, and the outer surfaces of the upper and lower ends of the second magnetic strip are respectively provided with cylindrical grooves that cooperate with the cylindrical protrusions.

[0012] Compared with the prior art, the present invention provides a centrifuge filter bag installation structure, which has the following beneficial effects:

[0013] 1. The present invention has a first annular protrusion fixed on the outer side of the opening of the filter bag and a second annular protrusion fixed on the outer side of the opening of the drum. The first annular protrusion and the second annular protrusion have a first fixing hole and a second fixing hole that are vertically overlapping. A bolt is inserted into the first fixing hole and the second fixing hole. A locking nut is provided at the protruding end of the bolt. In use, the bolt and the locking nut can effectively fix the opening of the filter bag and the opening of the drum together, which is conducive to the fit of the upper part.

[0014] 2. The present invention has a plurality of vertical first magnetic strips fixedly arranged at intervals on the outer circumferential surface of the filter bag, and a second magnetic strip that attracts and cooperates with the first magnetic strips on the inner surface of the drum. When in use, when the filter bag is placed in the drum, the filter bag can be pressed outward by hand on the inner side circumferential surface of the filter bag, so that the first magnetic strips and the second magnetic strips adhere and attract each other, thereby fixing the filter bag in the middle part and facilitating the adhesion of the middle position.

[0015] 3. In this invention, a third magnetic strip is provided around the center circumferentially on the outer surface of the bottom of the filter bag, and a fourth magnetic strip is provided on the upper surface of the bottom of the drum to attract and cooperate with the third magnetic strip. In use, the third and fourth magnetic strips can fix the filter bag at the bottom, which is conducive to the bottom of the filter bag and the drum.

[0016] 4. The present invention has cylindrical protrusions on the outer surfaces of the upper and lower ends of the first magnetic strip and cylindrical grooves on the outer surfaces of the upper and lower ends of the second magnetic strip. When in use, the cylindrical protrusions and cylindrical grooves cooperate to better fix and limit the filter bag, prevent side slippage, and improve the fit between the filter bag and the drum. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0018] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the filter bag after it has been flipped over;

[0020] Figure 3 This is a three-dimensional structural diagram of the second embodiment of the present invention.

[0021] The diagram shows: 1. Filter bag; 11. First annular boss; 111. First fixing hole; 12. First magnetic strip; 121. Columnar protrusion; 2. Drum; 21. Second annular boss; 211. Second fixing hole; 22. Second magnetic strip; 221. Groove; 3. Bolt; 31. Locking nut. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1 , Figure 2 As shown, a centrifuge filter bag installation structure includes a filter bag 1 detachably disposed in a rotating drum 2 (different specifications of filter bags 1 can be produced according to different specifications of rotating drum 2). The filter bag 1 is a cylindrical tube with an open top, and a conical protrusion (not separately marked, prior art) is embedded at the bottom. A first annular boss 11 is fixedly provided on the outer side of the upper opening of the filter bag 1, and a second annular boss 21 is fixedly provided on the outer side of the upper opening of the rotating drum 2. The first annular boss 11 and the second annular boss 21 are provided with a first fixing hole 111 and a second fixing hole 211 that overlap vertically. A bolt 3 is inserted through the first fixing hole 111 and the second fixing hole 211 (only one set is shown in the figure), and a locking nut 31 is provided at the protruding end of the bolt 3.

[0025] The outer circumferential surface of the filter bag 1 is fixedly provided with several vertical first magnetic strips 12 at intervals, and the inner surface of the drum is provided with second magnetic strips 22 that attract and cooperate with the first magnetic strips 12. The bottom outer surface of the filter bag 1 is provided with third magnetic strips 13 at intervals around the center, and the inner bottom upper surface of the drum 2 is provided with a fourth magnetic strip (not shown) that attracts and cooperates with the third magnetic strips 13.

[0026] The first magnetic strip 12 and the second magnetic strip 22 are both vertical rectangles.

[0027] The third magnetic strip 13 and the fourth magnetic strip are both horizontal rectangles.

[0028] The lengths of the first magnetic strip 12 and the second magnetic strip 22 are respectively less than the height of the filter bag 1.

[0029] The lengths of the third magnetic strip 13 and the fourth magnetic strip are both less than the radius of the vertical projection of the filter bag 1.

[0030] In use, the bolts 3 and locking nuts 31 effectively fix the opening of the filter bag 1 to the opening of the drum 2, facilitating a close fit at the top. When placing the filter bag 1 in the drum 2, press outwards by hand against the inner circumference of the filter bag 1, causing the first magnetic strip 12 and the second magnetic strip 22 to adhere and attract each other, thus fixing the filter bag 1 in the middle and facilitating a close fit in the middle position. The third magnetic strip 13 and the fourth magnetic strip can fix the filter bag 1 at the bottom, facilitating a close fit between the bottom of the filter bag 1 and the drum 2. For disassembly, simply remove the bolts 3 and pull upwards.

[0031] Example 2

[0032] like Figure 3 As shown, the outer surfaces of the upper and lower ends of the first magnetic strip 12 are respectively provided with cylindrical protrusions 121, and the outer surfaces of the upper and lower ends of the second magnetic strip 22 are respectively provided with cylindrical grooves 221 that cooperate with the cylindrical protrusions 121.

[0033] In use, the cylindrical protrusion 121 and the cylindrical groove 221 cooperate to better fix and limit the filter bag 1, prevent side slippage, and improve the fit between the filter bag 1 and the drum 2.

[0034] All components used in this invention are general standard parts or parts known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0035] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] The structures, proportions, sizes, etc. illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifuge filter bag mounting structure characterized by: The filter bag is arranged in the rotating drum, and has an upper opening and a bottom upwardly embedded with a conical protrusion. A first annular boss is fixedly arranged outside the upper opening of the filter bag, and a second annular boss is fixedly arranged outside the upper opening of the rotating drum. The first annular boss and the second annular boss are provided with vertically coinciding first and second fixing holes, and a bolt is arranged in the first and second fixing holes. The bolt is provided with a locking nut at the penetrating end. A plurality of vertical first magnetic strips are fixedly arranged on the outer circumferential surface of the filter bag, and a second magnetic strip is arranged on the inner surface of the rotating drum and is in attractive cooperation with the first magnetic strips. A third magnetic strip is circumferentially and intervally arranged on the outer surface of the bottom of the filter bag, and a fourth magnetic strip is arranged on the upper surface of the inner bottom of the rotating drum and is in attractive cooperation with the third magnetic strip.

2. A filter bag mounting structure for a centrifuge according to claim 1, wherein: The first and second magnetic strips are vertically rectangular.

3. A filter bag mounting structure for a centrifuge according to claim 1, wherein: The third and fourth magnetic strips are horizontally rectangular.

4. The centrifuge filter bag mounting structure of claim 1, wherein: The lengths of the first and second magnetic strips are less than the height of the filter bag.

5. The centrifuge filter bag mounting structure of claim 1, wherein: The lengths of the third and fourth magnetic strips are less than the radius of the vertical projection of the filter bag.

6. A filter bag mounting structure for a centrifuge according to claim 1, wherein: Cylindrical protrusions are arranged on the outer surfaces of the upper and lower ends of the first magnetic strip, and cylindrical grooves are arranged on the outer surfaces of the upper and lower ends of the second magnetic strip and are in cooperation with the cylindrical protrusions.

Images