CN111593595A - Filtrate distribution device of multi-disc thickener - Google Patents

Filtrate distribution device of multi-disc thickener Download PDF

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Publication number
CN111593595A
CN111593595A CN202010448930.9A CN202010448930A CN111593595A CN 111593595 A CN111593595 A CN 111593595A CN 202010448930 A CN202010448930 A CN 202010448930A CN 111593595 A CN111593595 A CN 111593595A
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China
Prior art keywords
filtrate
distribution
exhaust chamber
arc
central shaft
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CN202010448930.9A
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CN111593595B (en
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刘建坡
刘建涛
任福军
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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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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/64Paper recycling

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a filtrate distribution device of a multi-disc concentrator, which comprises a central shaft, wherein filtrate runners are uniformly distributed and arranged on the outer circumference of the central shaft, filtrate distribution valves are arranged on one side of the shaft extension end of the central shaft and are arranged outside a pulp tank of the multi-disc concentrator, the outlet of the filtrate runner is guided to the filtrate distribution valves, each filtrate distribution valve comprises a distribution valve shell, and the distribution valve shell is opened on one side facing the pulp tank and is fixedly connected with the pulp tank in a sealing way, so that the inner cavity of the distribution valve shell is communicated with the filtrate runners of the central shaft; the inner cavity of the distribution valve shell is provided with distribution sheets which are arranged along the radial direction of the central shaft, the radial length of each distribution sheet exceeds the filtrate flow channel on the central shaft, and the distribution sheets are connected with a distribution sheet driving mechanism which drives the distribution sheets to rotate along the central shaft; the lower part of the distribution valve shell is communicated with two water legs which are arranged left and right and are respectively a turbid filtrate water leg and a clear filtrate water leg which respectively receive turbid filtrate and clear filtrate distributed by the distribution valve; the distribution piece rotates to adjust the distribution proportion of the filtrate guided to the two water legs. The invention can improve the filtrate distribution efficiency of the multi-disc thickener.

Description

Filtrate distribution device of multi-disc thickener
Technical Field
The invention relates to the technical field of multi-disc thickeners in papermaking equipment, in particular to a filtrate distribution device of a multi-disc thickener.
Background
The multi-disc thickener is mainly used for thickening and washing slurry of a slurry line, the slurry flows into the slurry inlet box through the slurry inlet pipe, and then the slurry enters the slurry tank in an overflow mode. When the central shaft rotates, the fan-shaped plates (the disk is formed by combining the fan-shaped plates and is in a disc shape) on the disk are immersed in the slurry under the atmospheric pressure, the separation of the slurry is realized by the filter medium, the vacuum is gradually formed inside the water leg, the slurry layer adsorbed on the surface of the fan-shaped plates is thinner at the moment, a large amount of solid matters of fine fibers and fillers still exist in the filtered filtrate, and the filtrate has higher concentration and is called turbid filtrate. With the continuous operation of the sector plate, the pulp layer on the sector plate becomes thicker gradually, and at the moment, the pulp layer plays a good role of filtering media, a large amount of fine solid matters can be intercepted, the quality of the filtrate is improved gradually, and the filtrate in the area is called as clear filtrate; the pulp layer is thickened along with the rotation of the fan-shaped plate, when the fan-shaped plate rotates out of the liquid surface, the dehydration is continued under the action of vacuum, the dryness of the pulp layer is further improved, then the pulp layer enters an atmospheric region, and when the edge of the fan-shaped plate is stripped by the slurry stripping water, the pulp layer forms self-rolling under the action of self gravity and falls into the pulp tank. The pulp enters a pulp tank through spiral conveying, the sector plates with the peeled pulp layer are transferred to a net washing area, and the next filtration cycle is carried out after washing.
The central shaft is used as a flow channel of filtrate of the multi-disc concentrator and is communicated with a cavity channel of the fan-shaped plate on the disc, and the filtered filtrate enters the central shaft along the cavity channel formed by the fan-shaped plate and the filter screen, is collected to the filtrate distribution valve and then flows to the filtrate pool through an outlet of the distribution valve.
The invention with the publication number of CN204780442U discloses a multi-disc dewatering device, which comprises a base, a machine shell arranged on the base, a main motor fixed at one end of the base, a hollow main shaft connected with the output end of the main motor, a plurality of filter discs sleeved outside the hollow main shaft, a spraying device arranged on the inner wall surface of the upper part of the machine shell, and a filtrate distribution valve fixedly connected with the end part of the hollow main shaft, wherein the filtrate distribution valve comprises a circular table, a hollow cylindrical boss arranged in the middle of the circular table, and two fan-shaped filter discs, two fan-shaped notches are arranged on the circular table, the fan-shaped filter discs are in abutting connection with the circular table and cover the fan-shaped notches, and a plurality of through holes. The vacuum degree can be promoted mildly in advance and slowly, and the slurry layer can be better attached to the filter disc; meanwhile, the processing capacity of the multi-disc dehydration device is improved by more than 30 percent.
However, the filtrate distribution structure of the traditional multi-disc thickener comprising the technical scheme is unreasonable in design, so that the filtrate distribution effect is affected, and the operation efficiency of the multi-disc thickener is further affected.
Disclosure of Invention
The invention aims to provide a filtrate distribution device of a multi-disc thickener.
In order to solve the technical problems, the invention adopts the following technical scheme:
a filtrate distribution device of a multi-disc concentrator comprises a central shaft, filtrate channels are uniformly distributed and arranged on the outer circumference of the central shaft, filtrate distribution valves are arranged on one side of the shaft extension end of the central shaft and are arranged outside a pulp tank of the multi-disc concentrator, the outlets of the filtrate channels are guided to the filtrate distribution valves,
the filtrate distribution valve comprises a distribution valve shell, the distribution valve shell is opened at one side facing the slurry tank and is fixedly connected with the slurry tank in a sealing way, so that the inner cavity of the distribution valve shell is communicated with the filtrate flow channel of the central shaft;
the inner cavity of the distribution valve shell is provided with distribution sheets which are arranged along the radial direction of the central shaft, the radial length of each distribution sheet exceeds the filtrate flow channel on the central shaft, and the distribution sheets are connected with a distribution sheet driving mechanism which drives the distribution sheets to rotate along the central shaft;
the lower part of the distribution valve shell is communicated with two water legs which are arranged left and right and are respectively a turbid filtrate water leg and a clear filtrate water leg which respectively receive turbid filtrate and clear filtrate distributed by the distribution valve; the distribution piece rotates to adjust the distribution proportion of the filtrate guided to the two water legs.
The distribution piece is positioned at the lower half part of the inner cavity of the distribution valve shell, is of an L-shaped structure and comprises a radial straight line section and an arc section connected to the radial outer end of the straight line section;
a sealing plate which is vertically arranged is arranged between the turbid filtrate water leg and the clear filtrate water leg, and the sealing plate is in sealing contact fit with the arc-shaped section of the distribution sheet.
The sealing plate is arranged at one side of the turbid filtrate water leg and is connected with the turbid filtrate water leg and the clear filtrate water leg through the guide plate.
The distribution sheet driving mechanism comprises a distribution sheet driving telescopic rod which inclines downwards and points to the distribution sheet, and the distribution sheet driving telescopic rod is connected with the distribution sheet through a connecting rod assembly.
The upper half part of the inner cavity of the distribution valve shell is provided with an exhaust device, the exhaust device comprises an exhaust chamber with a fixed position, an arc-shaped window is arranged on the exhaust chamber, the arc-shaped window corresponds to a plurality of filtrate flow channels on the upper part, so that the filtrate flow channels are communicated with the exhaust chamber through the arc-shaped window, and the exhaust chamber is also provided with an exhaust pipe which is horizontally arranged.
The exhaust chamber is of an arc structure, a radial partition plate is arranged in the exhaust chamber to divide the exhaust chamber into two exhaust chambers, wherein the arc length of one exhaust chamber is larger and is a large exhaust chamber, the arc length of the other exhaust chamber is smaller and is a small exhaust chamber, and the height of the large exhaust chamber is higher; the radial partition plate is also provided with a channel which enables the large exhaust chamber to be communicated with the small exhaust chamber; the exhaust pipe is connected to the large exhaust chamber;
arc windows are arranged in the large exhaust chamber and the small exhaust chamber, and the arc length of the arc window of the large exhaust chamber is larger than that of the arc window of the small exhaust chamber.
And an adjusting baffle matched with the arc-shaped window in a sliding guide manner is arranged at the arc-shaped window of the large exhaust chamber, and the adjusting baffle is connected with an adjusting baffle driving mechanism for driving the adjusting baffle to move along the arc-shaped window.
The central shaft comprises a conical core shaft and a rotating shaft fixedly arranged at the central axis of the conical core shaft in a penetrating way; the rotating shaft penetrates through the slurry tank and is in rotating fit with the slurry tank, and the conical core shaft is positioned in the slurry tank;
the conical mandrel is a small-diameter end at one end facing the filtrate distribution valve; a plurality of bending plates are uniformly distributed and fixed on the peripheral surface of the conical mandrel along the circumferential direction, and the length of each bending plate extends along the axial direction of the conical mandrel; an independent conical inclined type filtrate runner is formed between each bending plate and the outer peripheral surface of the conical mandrel respectively, and the conical inclined type filtrate runner is connected with a filtrate distribution valve;
and a filtrate inlet group communicated with the conical inclined filtrate runner is arranged on the radial outer side surface of each bent plate positioned on the conical mandrel, each filtrate inlet group comprises a plurality of filtrate inlets which are arranged at intervals along the axial direction, the filtrate inlets are correspondingly arranged with the discs of the multi-disc concentrator, and the filtrate inlets are communicated with the sector plate cavity channels on the corresponding discs.
The two ends of the rotating shaft are respectively provided with a bearing seat support, a sleeve support is arranged at the rotating shaft on one side of the filtrate distribution valve, the sleeve support comprises a cylinder body which is sleeved on the rotating shaft along the axial direction, a bearing gland is arranged at one end of the bearing seat of the cylinder body and is fixedly connected with the corresponding bearing seat, the other end of the cylinder body is provided with a fan-shaped support plate which is arranged in parallel corresponding to the exhaust chamber, and the exhaust chamber is fixed on the fan-shaped support plate.
The radial inner end of the distribution sheet on the filtrate distribution valve is arranged on the cylinder body in a holding mode through a hoop mechanism.
The invention has the beneficial effects that:
filtrate flow passages are uniformly distributed and arranged on the outer circumference of a central shaft, outlets of the filtrate flow passages guide filtrate distribution valves, distribution plates which are arranged along the radial direction of the central shaft are arranged in an inner cavity of a distribution valve shell, the radial length of each distribution plate exceeds that of the filtrate flow passage on the central shaft, the distribution plates are connected with a distribution plate driving mechanism which drives the distribution plates to rotate along the central shaft, and the lower part of the distribution valve shell is communicated and provided with two water legs which are arranged left and right and are respectively a turbid filtrate water leg and a clear filtrate water leg which are respectively used for receiving turbid filtrate and clear filtrate distributed by the distribution; the distribution piece rotates to adjust the distribution proportion of the filtrate guided to the two water legs, so that the distribution treatment effect of turbid filtrate and clear filtrate is improved.
The upper half part of the inner cavity of the distributing valve shell is provided with an exhaust device, when the fan plate is immersed in the slurry, the filtrate enters the cavity channel of the fan plate and the filtrate channel of the central shaft, and the displaced atmosphere is exhausted through the exhaust device of the filtrate distributing valve.
According to the invention, the filtrate flow channel formed on the central shaft is a conical inclined filtrate flow channel, so that the water flow smoothness in the filtrate flow channel is improved. When the filter disc is installed, the fan-shaped plate of the disc is correspondingly installed at a filtrate inlet, filtered filtrate enters the conical inclined filtrate flow channel from the filtrate inlet along a cavity formed by the fan-shaped plate and the filter screen, and then the filtrate is quickly collected to the filtrate distribution valve along the conical inclined filtrate flow channel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the present invention;
FIG. 3 is a transverse cross-sectional view of the present invention;
FIG. 4 is a schematic view of the filtrate distribution valve of FIG. 1 with the end plate of the housing removed;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a schematic view of the interior of the vent on the filtrate distribution valve of FIG. 5;
FIG. 7 is an enlarged view of the filtrate distribution valve position of FIG. 2;
FIG. 8 is a schematic view of the sleeve holder of FIG. 7;
FIG. 9 is a perspective view of the sleeve holder;
FIG. 10 is a perspective view of the central shaft of FIG. 2;
FIG. 11 is an end view of the central shaft;
fig. 12 is a longitudinal sectional view of the central shaft.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 to 12, the present embodiment discloses a filtrate distribution device of a multi-disc concentrator, which includes a central shaft 7, wherein discs 2 are axially arranged on the central shaft 7, and the discs 2 are formed by assembling fan-shaped plates and have a disc shape. The sector plate is provided with a filter screen, and a cavity channel is formed in the sector plate. The filtrate distribution valve 10 is provided on the side of the shaft-extending end of the central shaft and is installed outside the vat 100 of the multi-disc thickener.
The central shaft 7 is a regular polygon central shaft, and comprises a conical core shaft 70 and a rotating shaft 73 fixedly arranged at the central axis of the conical core shaft 70 in a penetrating manner, and the conical core shaft 70 is formed by welding a conical cylinder 71 and sealing plates 72 arranged at two axial ends of the conical cylinder 71. The shaft 73 is passed through and rotationally engaged with the vat 10, and the tapered spindle 70 is located in the vat 100.
The tapered mandrel 70 is a small diameter end at the end facing the filtrate distribution valve 10 of the multi-disc concentrator; a plurality of bending plates 8 are uniformly distributed and fixed on the outer peripheral surface of the conical mandrel 70 along the circumferential direction, and the length of each bending plate 8 extends along the axial direction of the conical mandrel 70; an independent conical inclined type filtrate runner 81 is formed between each bending plate 8 and the outer peripheral surface of the conical mandrel, the conical inclined type filtrate runner 81 is closed at a small opening end, an opening is formed at a large opening end, and the opening at the large opening end is connected with a filtrate distribution valve.
And each bending plate 8 is provided with a filtrate inlet group which is positioned on the radial outer side surface of the conical mandrel and communicated with the conical inclined filtrate channel 81, the filtrate inlet group comprises a plurality of filtrate inlets 82 which are arranged at intervals along the axial direction, the filtrate inlets 82 are arranged corresponding to the discs of the multi-disc concentrator, and the filtrate inlets 82 are communicated with the sector plate channels on the corresponding discs.
In order to facilitate the installation and fixation of the disk on the central shaft, the bending plate 8 is further provided with a fixing hole 83 for fixing the sector plate on the disk 2 at the radial outer side surface of the conical core shaft 70. The fixing holes 83 are provided in a set of two, one-to-one correspondence with the filtrate inlets 82.
In this embodiment, a locking nut 84 is fixedly disposed on the inner side of the bending plate 8 corresponding to the fixing hole 83, so as to facilitate locking and fixing of the sector plate.
In this embodiment, the bending plate 8 is an L-shaped panel having an L-shaped cross section, and is composed of a vertical portion and a horizontal portion; the vertical part is fixedly connected with the outer peripheral surface of the conical core shaft 70 along the radial direction of the conical core shaft 70, and the horizontal part is fixedly lapped on the adjacent L-shaped panel. The filtrate inlet 82 and the fixing hole 83 are both provided at the horizontal portion.
According to the invention, the filtrate flow channel formed on the central shaft is a conical inclined filtrate flow channel, so that the water flow smoothness in the filtrate flow channel is improved. When the filter disc is installed, the sector plate of the disc is correspondingly installed at the filtrate inlet 82 and is fixed through the bolt penetrating through the fixing hole 83, filtered filtrate enters the conical inclined filtrate flow channel 81 from the filtrate inlet 82 along a cavity formed by the sector plate and the filter screen, and then the filtrate is quickly collected to the filtrate distribution valve along the conical inclined filtrate flow channel 81.
The filtrate distribution valve 10 comprises a distribution valve housing 101, wherein the distribution valve housing 101 is open at one side facing the slurry tank 100 and is fixedly connected with the slurry tank 100 in a sealing way, so that the inner cavity of the distribution valve housing 101 is communicated with the conical inclined filtrate flow channel 81 of the central shaft.
The inner cavity of the distribution valve housing 101 is provided with a distribution plate 102 arranged along the central axis in the radial direction, the radial length of the distribution plate 102 exceeds the conical inclined filtrate flow channel on the central axis, and the distribution plate 102 is connected with a distribution plate driving mechanism for driving the distribution plate to rotate along the central axis.
In this embodiment, the distribution piece driving mechanism includes a distribution piece driving telescopic rod 103 which inclines downward and points to the distribution piece, the distribution piece driving telescopic rod 103 is connected with the distribution piece 102 through a connecting rod assembly, and the distribution piece driving telescopic rod 103 stretches and retracts to drive the distribution piece 102 to rotate within a certain angle range.
The lower part of the distribution valve shell 101 is communicated with two water legs which are arranged left and right, namely a turbid filtrate water leg 104 and a clear filtrate water leg 105, and respectively receive turbid filtrate and clear filtrate distributed by the distribution valve; the distribution piece 102 rotates to adjust the distribution ratio of the filtrate guided to the two water legs.
In this embodiment, the distribution plate 102 is located in the lower half of the inner cavity of the distribution valve housing 101. The distribution piece 102 is an L-shaped structure that includes a radially straight segment and an arcuate segment connected to the radially outer end of the straight segment. A vertically arranged sealing plate 106 is provided between the turbid filtrate water leg 104 and the clear filtrate water leg 105, the sealing plate 106 being in sealing contact engagement with the arcuate section of the distribution sheet 102.
The sealing plate 106 is arranged at one side of the turbid filtrate water leg 104 in a deviation manner, and the sealing plate 106 is connected with the turbid filtrate water leg 104 and the clear filtrate water leg 105 through the guide plate 1061, so that clear filtrate received by the clear filtrate water leg 105 is more, and the working principle of the multi-disc concentrator is adapted.
The upper half part of the inner cavity of the distribution valve shell 101 is provided with an exhaust device, the exhaust device comprises an exhaust chamber 107 with a fixed position, an arc-shaped window is arranged on the exhaust chamber, the arc-shaped window corresponds to a plurality of conical inclined filtrate flow channels on the upper part, so that the conical inclined filtrate flow channels are communicated with the exhaust chamber through the arc-shaped window, and the exhaust chamber is also provided with an exhaust pipe 108 which is horizontally arranged.
In this embodiment, the exhaust chamber 107 is an arc-shaped structure, and a radial partition plate is arranged in the exhaust chamber to divide the exhaust chamber into two exhaust chambers, wherein one exhaust chamber has a larger arc length and is a large exhaust chamber 1071, and the other exhaust chamber has a smaller arc length and is a small exhaust chamber 1072, and the large exhaust chamber has a higher height; the radial partition plate is also provided with a channel 1070, so that the large exhaust chamber 1071 is communicated with the small exhaust chamber 1072; the exhaust pipe 108 is connected to the large exhaust chamber.
Arc windows are arranged in the large exhaust chamber 1071 and the small exhaust chamber 1072, and the arc length of the arc window 1073 of the large exhaust chamber is larger than that of the arc window 1074 of the small exhaust chamber.
As shown in fig. 6, when the central shaft rotates counterclockwise, the gas-water mixture is located in the tapered inclined filtrate flow channel at the upper part of the central shaft, the gas-water mixture enters the large exhaust chamber through the arc window 1073 of the large exhaust chamber 1071 via the corresponding tapered inclined filtrate flow channel, is discharged through the exhaust pipe 108, continues to rotate, the tapered inclined filtrate flow channel rotates to the small exhaust chamber 1072, the residual gas contained in the filtrate enters the small exhaust chamber through the arc window 1074 of the small exhaust chamber 1072, then enters the large exhaust chamber 1071 via the channel 1070 on the radial partition plate, and is discharged from the exhaust pipe 108.
The upper half part of the inner cavity of the distributing valve shell is provided with the exhaust device, when the fan plate is immersed in the slurry, the filtrate enters the cavity channel of the fan plate and the filtrate channel of the central shaft, and the displaced atmosphere is effectively exhausted through the exhaust device of the filtrate distributing valve.
The arc window of the large exhaust chamber 1071 is further provided with an adjusting baffle matched with the sliding guide, and the adjusting baffle 1070 is connected with an adjusting baffle driving mechanism for driving the adjusting baffle to move along the arc window, so that the length of the arc window of the large exhaust chamber 1071 can be adjusted. The adjusting baffle driving mechanism comprises an adjusting baffle driving telescopic rod 1075 which inclines upwards and points to the adjusting baffle, and the adjusting baffle driving telescopic rod 1075 is connected with the adjusting baffle through a connecting rod assembly.
In this embodiment, the two ends of the rotating shaft 73 are respectively provided with a bearing block 730 for supporting, the rotating shaft on one side of the filtrate distribution valve 10 is provided with a sleeve support 109, the sleeve support 109 comprises a cylinder 1091 axially sleeved on the rotating shaft, the cylinder 1091 is provided with a bearing cover 1092 at one end of the bearing block, the bearing cover 1092 is fixedly connected with the corresponding bearing block 730, the other end of the cylinder 1091 is provided with a fan-shaped support plate 1093 arranged in parallel corresponding to the exhaust chamber, and the exhaust chamber 107 is fixed on the fan-shaped support plate 1093.
A packing seal assembly is arranged between the cylinder 1091 and the rotating shaft 73, a packing chamber 1094 of the packing seal assembly and the cylinder 1091 are integrated, and a mounting notch 1095 is further formed in the cylinder 1091 between the packing seal assembly 1094 and the bearing cover 1092.
In order to ensure the effective work of the exhaust device on the filtrate distribution valve, the parallelism of the end surface of the exhaust chamber and the end surface of the central shaft is important. According to the invention, the bearing gland 1092, the filling chamber 1094, the cylinder 1091 and the fan-shaped support plate 1093 are designed into an integral part, and are integrally processed after welding, so that the coaxiality of the circle centers and the parallelism of the end surfaces of the parts such as the bearing gland 1092, the filling chamber 1094, the cylinder 1091 and the fan-shaped support plate 1093 are ensured, and further the parallelism of the end surface of an exhaust device on the filtrate distribution valve and the end surface of a central shaft after the whole machine is assembled is ensured.
In this embodiment, the radially inner ends of the distribution plates 102 of the filtrate distribution valve 10 are clasped to the cylinder 1091 by the hoop mechanism 1021, so that the distribution plates 102 can rotate around the central shaft within a certain angle range.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "front", "rear", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims (10)

1. The utility model provides a concentrated quick-witted filtrating distributor of many discs, includes the center pin, and the outer circumference equipartition of center pin is arranged and is equipped with the filtrating runner, and the filtrating distributing valve is established in the axle extension of center pin and is held one side to install outside the dressing trough of concentrated machine of many discs, the export direction filtrating distributing valve of filtrating runner, its characterized in that:
the filtrate distribution valve comprises a distribution valve shell, the distribution valve shell is opened at one side facing the slurry tank and is fixedly connected with the slurry tank in a sealing way, so that the inner cavity of the distribution valve shell is communicated with the filtrate flow channel of the central shaft;
the inner cavity of the distribution valve shell is provided with distribution sheets which are arranged along the radial direction of the central shaft, the radial length of each distribution sheet exceeds the filtrate flow channel on the central shaft, and the distribution sheets are connected with a distribution sheet driving mechanism which drives the distribution sheets to rotate along the central shaft;
the lower part of the distribution valve shell is communicated with two water legs which are arranged left and right and are respectively a turbid filtrate water leg and a clear filtrate water leg which respectively receive turbid filtrate and clear filtrate distributed by the distribution valve; the distribution piece rotates to adjust the distribution proportion of the filtrate guided to the two water legs.
2. The filtrate distribution arrangement of a multiple disc concentrator of claim 1, wherein: the distribution piece is positioned at the lower half part of the inner cavity of the distribution valve shell, is of an L-shaped structure and comprises a radial straight line section and an arc section connected to the radial outer end of the straight line section;
a sealing plate which is vertically arranged is arranged between the turbid filtrate water leg and the clear filtrate water leg, and the sealing plate is in sealing contact fit with the arc-shaped section of the distribution sheet.
3. The filtrate distribution arrangement of a multiple disc concentrator of claim 2, wherein: the sealing plate is arranged at one side of the turbid filtrate water leg and is connected with the turbid filtrate water leg and the clear filtrate water leg through the guide plate.
4. The filtrate distribution arrangement of a multiple disc concentrator of claim 1, wherein: the distribution sheet driving mechanism comprises a distribution sheet driving telescopic rod which inclines downwards and points to the distribution sheet, and the distribution sheet driving telescopic rod is connected with the distribution sheet through a connecting rod assembly.
5. The filtrate distribution apparatus of a multiple disc concentrator according to any one of claims 1 to 4, wherein: the upper half part of the inner cavity of the distribution valve shell is provided with an exhaust device, the exhaust device comprises an exhaust chamber with a fixed position, an arc-shaped window is arranged on the exhaust chamber, the arc-shaped window corresponds to a plurality of filtrate flow channels on the upper part, so that the filtrate flow channels are communicated with the exhaust chamber through the arc-shaped window, and the exhaust chamber is also provided with an exhaust pipe which is horizontally arranged.
6. The filtrate distribution arrangement of a multiple disc concentrator of claim 5, wherein: the exhaust chamber is of an arc structure, a radial partition plate is arranged in the exhaust chamber to divide the exhaust chamber into two exhaust chambers, wherein the arc length of one exhaust chamber is larger and is a large exhaust chamber, the arc length of the other exhaust chamber is smaller and is a small exhaust chamber, and the height of the large exhaust chamber is higher; the radial partition plate is also provided with a channel which enables the large exhaust chamber to be communicated with the small exhaust chamber; the exhaust pipe is connected to the large exhaust chamber;
arc windows are arranged in the large exhaust chamber and the small exhaust chamber, and the arc length of the arc window of the large exhaust chamber is larger than that of the arc window of the small exhaust chamber.
7. The filtrate distribution apparatus of a disc concentrator according to claim 6, wherein: and an adjusting baffle matched with the arc-shaped window in a sliding guide manner is arranged at the arc-shaped window of the large exhaust chamber, and the adjusting baffle is connected with an adjusting baffle driving mechanism for driving the adjusting baffle to move along the arc-shaped window.
8. The filtrate distribution arrangement of a multiple disc concentrator of claim 7, wherein: the central shaft comprises a conical core shaft and a rotating shaft fixedly arranged at the central axis of the conical core shaft in a penetrating way; the rotating shaft penetrates through the slurry tank and is in rotating fit with the slurry tank, and the conical core shaft is positioned in the slurry tank;
the conical mandrel is a small-diameter end at one end facing the filtrate distribution valve; a plurality of bending plates are uniformly distributed and fixed on the peripheral surface of the conical mandrel along the circumferential direction, and the length of each bending plate extends along the axial direction of the conical mandrel; an independent conical inclined type filtrate runner is formed between each bending plate and the outer peripheral surface of the conical mandrel respectively, and the conical inclined type filtrate runner is connected with a filtrate distribution valve;
and a filtrate inlet group communicated with the conical inclined filtrate runner is arranged on the radial outer side surface of each bent plate positioned on the conical mandrel, each filtrate inlet group comprises a plurality of filtrate inlets which are arranged at intervals along the axial direction, the filtrate inlets are correspondingly arranged with the discs of the multi-disc concentrator, and the filtrate inlets are communicated with the sector plate cavity channels on the corresponding discs.
9. The filtrate distribution arrangement of a multiple disc concentrator of claim 7, wherein: the two ends of the rotating shaft are respectively provided with a bearing seat support, a sleeve support is arranged at the rotating shaft on one side of the filtrate distribution valve, the sleeve support comprises a cylinder body which is sleeved on the rotating shaft along the axial direction, a bearing gland is arranged at one end of the bearing seat of the cylinder body and is fixedly connected with the corresponding bearing seat, the other end of the cylinder body is provided with a fan-shaped support plate which is arranged in parallel corresponding to the exhaust chamber, and the exhaust chamber is fixed on the fan-shaped support plate.
10. The filtrate distribution arrangement of a multiple disc concentrator of claim 9, wherein: the radial inner end of the distribution sheet on the filtrate distribution valve is arranged on the cylinder body in a holding mode through a hoop mechanism.
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