CN213698991U - Conical section filtering disc for gravity multi-disc concentrator - Google Patents

Conical section filtering disc for gravity multi-disc concentrator Download PDF

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Publication number
CN213698991U
CN213698991U CN202022624500.6U CN202022624500U CN213698991U CN 213698991 U CN213698991 U CN 213698991U CN 202022624500 U CN202022624500 U CN 202022624500U CN 213698991 U CN213698991 U CN 213698991U
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fan
shaped
arc plate
frame
filter
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刘建坡
刘建涛
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Zhengzhou Leizhan Technology Paper Machinery Co Ltd
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Zhengzhou Leizhan Technology Paper Machinery Co Ltd
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Abstract

The utility model discloses a conical section filtering disc for a gravity multi-disc concentrator, which comprises a filtering disc arranged on a hollow main shaft, wherein the filtering disc comprises a plurality of fan-shaped filtering frames, a filtering net is coated outside the fan-shaped filtering frames, each fan-shaped filtering frame comprises a fan-shaped frame consisting of an outer arc plate, an inner arc plate and two supporting rods arranged along the radial direction, grid plates are symmetrically arranged at the two axial sides of the fan-shaped frame respectively, and the filtering net covers the grid plates; the axial width of the outer arc plate is smaller than that of the inner arc plate, so that the two grid plates are close to the center along the direction from the inner arc plate to the outer arc plate, and a frustum-shaped cross-section structure with a small outer end and a large inner end is formed. The utility model discloses change the rectangular cross section structure of the fan-shaped filter frame of current gravity polydisc concentrator into frustum form cross-sectional structure, increased filter area and enlarged the area of action of gravity, the effectual fan-shaped filter frame that has improved filters concentrated efficiency.

Description

Conical section filtering disc for gravity multi-disc concentrator
Technical Field
The utility model relates to a concentrated machine technical field of many discs of gravity, concretely relates to many discs of gravity are awl cross-section filter disc for concentrated machine.
Background
In a papermaking line, gravity disc thickeners are used for washing and thickening of low consistency stock. The gravity multi-disc thickener can realize the maximum dewatering area under the limited installation space. The hollow main shaft of the gravity disc type concentrator is provided with a plurality of filtering discs, each filtering disc comprises a plurality of fan-shaped filtering frames, the fan-shaped filtering frames are covered with filtering nets, the fan-shaped filtering frames are fixed on the main shaft through screws, a plurality of through holes are formed in the hollow main shaft and are respectively communicated with one fan-shaped filtering frame on each filtering disc, and the roots of the hollow main shaft and the fan-shaped filtering frames are sealed through special rubber pads.
When the filtering disc works, slurry is pumped to the feed hopper at the concentration of 0.9% -2.5%, overflows into the groove body through the weir plate and is evenly distributed on two sides of the rotating filtering disc along the width direction of the groove body. The concentration is achieved by n concentrating filter discs on a hollow spindle. Along with the operation of the hollow main shaft, when the fan-shaped filter frame is submerged below the liquid level of the slurry, a liquid level difference exists between the inside and the outside of the fan-shaped filter frame, filtrate in the slurry enters the hollow main shaft through the filter screen covered outside the fan-shaped filter frame under the action of the liquid level difference, filtrate outlets are matched at two ends of the hollow main shaft, the filtrate flows out through the hollow main shaft, the slurry is intercepted by the filter screen to realize slurry-water separation, and the slurry covered on the filter screen loses adhesive force due to the disappearance of the liquid level difference when the fan-shaped filter frame rotates out of the liquid level, and is automatically stripped under the action of gravity. Along with the continuous operation of fan-shaped filter frame, thick liquids concentration improves because the continuous emission of filtrating, and thick liquids overflow to the play workbin when thick liquids liquid level is higher than level adjustment board to make thick liquids obtain the concentration.
The utility model with the publication number of CN210684304U discloses a gravity disc thickener for a papermaking production line, which comprises a case, a hollow main shaft, a driving device, a filtering disc, a discharging box and a spraying device, wherein the filtering disc comprises a plurality of sector plates and a plurality of metal filter screens; one side of the sector plate is provided with a slot, and the other side of the sector plate is provided with an insert block; the two end faces of the middle part of each sector plate are respectively provided with a supporting rod, two sides of each metal filter screen are respectively and fixedly connected to the supporting rods of the two adjacent sector plates, and the plurality of metal filter screens completely cover the two end faces of the plurality of sector plates after being installed. The utility model has the advantages of it is following and effect: the adjacent sector plates are matched through the inserting blocks and the inserting grooves, so that the structural strength can be improved; meanwhile, two sides of the metal filter screen are respectively connected to the supporting rods of the two adjacent fan-shaped plates, and the metal filter screen can increase the connection strength between the two adjacent fan-shaped plates after being installed, so that the metal filter screen has the function of improving the connection structure strength of the filter disc.
The technical scheme is improved mainly by improving the strength of the connecting structure of the filtering discs, and other aspects of the improvement of the gravity disc type thickener are not involved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a many discs of gravity are awl cross-section filter disc for concentrator.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a conical-section filtering disc for a gravity multi-disc concentrator comprises a filtering disc arranged on a hollow main shaft, wherein the filtering disc comprises a plurality of fan-shaped filtering frames, a filtering net is coated outside each fan-shaped filtering frame, each fan-shaped filtering frame comprises a fan-shaped frame consisting of an outer arc plate, an inner arc plate and two supporting rods arranged along the radial direction, grid plates are symmetrically arranged on two axial sides of each fan-shaped frame respectively, and the filtering net covers the grid plates; the axial width of the outer arc plate is smaller than that of the inner arc plate, so that the two grid plates are close to the center along the direction from the inner arc plate to the outer arc plate, and a frustum-shaped cross-section structure with a small outer end and a large inner end is formed.
The central line of the fan-shaped filter frame penetrates through a screw rod which is arranged along the radial direction, the screw rod sequentially penetrates through the outer arc plate and the inner arc plate and extends into the hollow main shaft, and two ends of the screw rod are respectively provided with a locking nut.
The axial both sides of fan-shaped frame are equipped with the filter screen respectively and compress tightly the frame, and filter screen compresses tightly frame and fan-shaped frame screw connection, and the edge of filter screen compresses tightly on fan-shaped frame through filter screen compression frame.
The fan-shaped filter frame is characterized in that a channel is arranged on the inner arc plate, so that the inside of the fan-shaped filter frame is communicated with the through hole on the corresponding hollow main shaft, a sealing structure is arranged at the joint surface of the inner arc plate and the hollow main shaft, the sealing structure comprises sealing grooves formed in the inner arc plate, the sealing grooves are located on two axial sides of the through hole of the corresponding hollow main shaft, and sealing strips are installed in the sealing grooves.
And an arc-shaped sealing plate is arranged on the radial outer side of the outer arc plate.
The grid plate is formed by fixedly connecting a plurality of round steel which are arranged in a grid shape.
The fan-shaped filter frame is internally provided with a plurality of supporting plates which are respectively and fixedly connected with two grid plates.
The utility model has the advantages that:
the utility model discloses change the rectangular cross section structure of the fan-shaped filter frame of current gravity polydisc concentrator into frustum form cross-sectional structure, increased filter area and enlarged the area of action of gravity, the effectual fan-shaped filter frame that has improved filters concentrated efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic sectional view taken along line a-a in fig. 1.
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 present embodiment discloses a conical section filtering disc for a gravity multi-disc concentrator, which includes a filtering disc disposed on a hollow spindle 6, the filtering disc includes four fan-shaped filtering frames, and a filtering net 4 is covered on the fan-shaped filtering frames.
The fan-shaped filter frame comprises a fan-shaped frame consisting of an outer arc plate 1, an inner arc plate 2 and two support rods arranged along the radial direction, grid plates 3 are symmetrically arranged on two axial sides of the fan-shaped frame respectively, and a filter screen 4 covers the grid plates 3; wherein, the axial width of outer arc board 1 is less than the axial width of inner casing board 2, makes two net boards 3 draw close towards the center along by outer arc board 1 direction of inner arc board 2, forms the little, the big frustum form cross-sectional structure in inner of outer end.
In this embodiment, the inner arc plate 2 is provided with a channel to communicate the inside of the fan-shaped filter frame with the through hole on the corresponding hollow spindle, and the joint surface between the inner arc plate 2 and the hollow spindle is provided with a sealing structure, the sealing structure includes sealing grooves formed on the inner arc plate, the sealing grooves are located on two axial sides of the through hole of the corresponding hollow spindle, and the sealing strips 5 are installed in the sealing grooves. An arc-shaped sealing plate 7 is arranged on the radial outer side of the outer arc plate 1.
In this embodiment, a screw rod 6 arranged along the radial direction penetrates through the center line of the fan-shaped filter frame, the screw rod 6 sequentially penetrates through the arc-shaped seal plate 7, the outer arc plate 1 and the inner arc plate 2 and extends into the hollow main shaft 10, and locking nuts are respectively arranged at two ends of the screw rod 6.
In this embodiment, the axial both sides of fan-shaped frame are equipped with the filter screen respectively and compress tightly frame 8, and filter screen compresses tightly frame 8 and fan-shaped frame screw connection, and the edge of filter screen 4 compresses tightly on fan-shaped frame through filter screen compression frame 8.
In this embodiment, the grid plate 3 is formed by fixedly connecting a plurality of round bars 31 arranged in a grid shape. The fan-shaped filter frame is internally provided with a plurality of supporting plates 9, and the supporting plates 9 are respectively and fixedly connected with the two grid plates 3, so that the overall strength is improved.
The utility model discloses change the rectangular cross section structure of the fan-shaped filter frame of current gravity polydisc concentrator into frustum form cross section structure, increased filter area and enlarged the area of action of gravity (rotatory upper portion to when the filter disc), the effectual fan-shaped filter frame that has improved filters concentrated efficiency.
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 (7)

1. The utility model provides a many discs of gravity are disc filter disc with awl cross-section, includes the filtration disc that sets up on the hollow main shaft, filters the disc and includes a plurality of fan-shaped filter frames, and fan-shaped filter frame has its characterized in that outward to cover: the fan-shaped filter frame comprises a fan-shaped frame consisting of an outer arc plate, an inner arc plate and two support rods arranged along the radial direction, grid plates are symmetrically arranged on two axial sides of the fan-shaped frame respectively, and a filter screen covers the grid plates; the axial width of the outer arc plate is smaller than that of the inner arc plate, so that the two grid plates are close to the center along the direction from the inner arc plate to the outer arc plate, and a frustum-shaped cross-section structure with a small outer end and a large inner end is formed.
2. The tapered filter disk for a gravity multi-disk concentrator as defined in claim 1 wherein: the central line of the fan-shaped filter frame penetrates through a screw rod which is arranged along the radial direction, the screw rod sequentially penetrates through the outer arc plate and the inner arc plate and extends into the hollow main shaft, and two ends of the screw rod are respectively provided with a locking nut.
3. The tapered filter disk for a gravity multi-disk concentrator as defined in claim 1 wherein: the axial both sides of fan-shaped frame are equipped with the filter screen respectively and compress tightly the frame, and filter screen compresses tightly frame and fan-shaped frame screw connection, and the edge of filter screen compresses tightly on fan-shaped frame through filter screen compression frame.
4. A tapered section filter disk for a gravity multi-disk concentrator as defined in any one of claims 1 to 3 wherein: the fan-shaped filter frame is characterized in that a channel is arranged on the inner arc plate, so that the inside of the fan-shaped filter frame is communicated with the through hole on the corresponding hollow main shaft, a sealing structure is arranged at the joint surface of the inner arc plate and the hollow main shaft, the sealing structure comprises sealing grooves formed in the inner arc plate, the sealing grooves are located on two axial sides of the through hole of the corresponding hollow main shaft, and sealing strips are installed in the sealing grooves.
5. The tapered filter disk for a gravity multi-disk concentrator as defined in claim 4 wherein: and an arc-shaped sealing plate is arranged on the radial outer side of the outer arc plate.
6. The tapered filter disk for a gravity multi-disk concentrator as defined in claim 4 wherein: the grid plate is formed by fixedly connecting a plurality of round steel which are arranged in a grid shape.
7. The tapered filter disk for a gravity multi-disk concentrator as defined in claim 4 wherein: the fan-shaped filter frame is internally provided with a plurality of supporting plates which are respectively and fixedly connected with two grid plates.
CN202022624500.6U 2020-11-13 2020-11-13 Conical section filtering disc for gravity multi-disc concentrator Active CN213698991U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022624500.6U CN213698991U (en) 2020-11-13 2020-11-13 Conical section filtering disc for gravity multi-disc concentrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022624500.6U CN213698991U (en) 2020-11-13 2020-11-13 Conical section filtering disc for gravity multi-disc concentrator

Publications (1)

Publication Number Publication Date
CN213698991U true CN213698991U (en) 2021-07-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526259A (en) * 2022-01-10 2022-05-24 江苏盛泰电力设备有限公司 Impeller device with assembly structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526259A (en) * 2022-01-10 2022-05-24 江苏盛泰电力设备有限公司 Impeller device with assembly structure
CN114526259B (en) * 2022-01-10 2022-11-08 江苏盛泰电力设备有限公司 Impeller device with assembly structure

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