CN217312297U

CN217312297U - Disk filter

Info

Publication number: CN217312297U
Application number: CN202220129448.3U
Authority: CN
Inventors: 刘云龙; 柳晓明; 鲁道嵩; 李勇; 王云龙
Original assignee: Benxi Dongfang Sanjiazi Mining Co ltd
Current assignee: Benxi Dongfang Sanjiazi Mining Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-08-30
Anticipated expiration: 2032-01-18

Abstract

A disk filter relates to the field of mine production separation, in particular to ore pulp separation equipment. By improving the structure of the stirring device 4 of the disc filter, the structure of the stirring device 4 of the disc filter comprises a longitudinal stirring tool 5 and a transverse stirring tool 7. Horizontal thrust generated by the transverse stirring tool 7 enables deposited ore pulp to flow, improves the mobility of the ore pulp between the filter discs 1 and in the tank body 2, and improves the stirring effect and the filtering efficiency. The longitudinal stirring tool 5 generates a vertical stirring force to suspend the sedimented pulp and make it contact with the filter disc so that it can be adsorbed on the filter disc. The bottom stirring tool 6 is in direct physical contact collision with ores, so that ore pulp which is solidified and deposited is impacted and dispersed, and then is suspended to be filtered and sieved. Therefore, the utility model discloses can improve stirring efficiency and stirring quality, and then improve disc filter's filtration efficiency.

Description

Disk filter

Technical Field

The utility model relates to a mine production field of selecting separately especially relates to an ore pulp splitter.

Background

The filter is a solid-liquid separation device commonly used by mine enterprises. The disc filter comprises a filter disc group consisting of a plurality of filter discs 1, a main shaft transmission device, a stirring device 4, a scraper of a discharging device, a material guide device, a tank body 2, an ore feeding device, a lubricating system and other main components. The stirring device 4 is a multi-pair blade rotating structure, and is positioned at the lowest end of the tank body 2, the stirring shaft is parallel to the main shaft, 2 bearing seats are arranged at two ends outside the tank body 2 to support the tank body, and a water-sealed sealing device is arranged to prevent slurry leakage. The stirring shaft is provided with a plurality of pairs of stirring blades which are arranged among the filter discs 1. The (mixing) shaft is linked to each other by sprocket, chain and motor, reaches the stirring purpose through rotating the (mixing) shaft, plays the effect of mixing ore pulp. The quality of the stirring device 4 directly influences the operation efficiency, the product quality, the service life and the cost of the filter.

During filtering, ore pulp enters the outer side of the disc filter from the feeding hole and flows to the inner side of the filter disc group formed by the filter discs 1 from the outer side of the filter disc group formed by the filter discs 1. When the particles pass through the discharging device, the particles with the particle size larger than the aperture of the discharging device are intercepted, and are stored after being processed by the material guiding device; filtered ore pulp water enters the annular filter disc 1 and is led out through an outlet. In the process, the stirring device 4 is kept running all the time, and the stirring force generated by stirring enables the easily deposited ore with larger granularity and weight in the ore pulp to float in the ore pulp, so that the easily deposited ore is adsorbed on the filter disc 1 and is further filtered and separated from the ore pulp liquid.

Problems with disc filters: (1) the stirring range of the stirring device 4 is limited: the stirring device 4 is only arranged in the tank body 2 under the filter discs 1 (the stirring device 4 is not arranged under the positions among the filter discs 1), the pulp in the tank body 2 between the filter discs 1 has poor fluidity, the deposited pulp cannot be filtered in time, and the stirring effect is poor. (2) the stirring device 4 is not reasonable in design: the ore pulp concentration near the stirring shaft in the tank body 2 is very thick, the ore pulp quality is large, the ore pulp is easy to precipitate at the bottom of the tank body 2, the shaft is easy to deform due to the reasons of abrasion and the like between the stirring shaft and the ore pulp after the tank body is used for a period of time, the phenomenon of 'head throwing' appears during rotation, and the shaft can be abraded and broken when the tank body is serious. (3) The stirring capacity of the stirring device 4 is low, and the thickness of a filter cake is uneven: because the iron ore concentrate powder has coarse granularity and large mass and the mineral powder has high settling speed, the phenomenon that the concentration of the upper layer is thin and the concentration of the lower layer is thick in the slurry in the tank body 2 is caused. The area of the stirring blade in the original design is small, the generated stirring force is small, the ore pulp cannot be fully stirred, the ore pulp is easily precipitated at the bottom of the tank body 2, the stirring blade and the ore pulp precipitated at the bottom are abraded to generate resistance, so that the stirring is uneven, and the abrasion and the deformation of the blade are caused in the long term.

Disclosure of Invention

In order to solve the problems, the structure of the stirring device 4 of the disc type filter is improved, and the stirring device comprises a longitudinal stirring tool 5 and a transverse stirring tool 7, so that the stirring efficiency and the stirring quality are improved, and the filtering efficiency of the disc type filter is further improved. The specific scheme is as follows:

above the bottom of the tank body 2, under the bottom of the filter disc 1, a transverse stirring tool 7 is arranged, and with the help of the horizontal thrust generated by the transverse stirring tool 7, the deposited ore pulp flows, so that the fluidity of the ore pulp between the filter discs 1 and in the tank body 2 is improved, and the stirring effect and the filtering efficiency are improved. A longitudinal stirring tool 5 is arranged above the bottom of the tank body 2 and between the filter discs 1, and sedimentary ore pulp is suspended by virtue of vertical stirring force generated by the longitudinal stirring tool 5 and is in contact with the filter discs so as to be adsorbed on the filter discs. In addition, for ore pulp with high density and easy ore deposition, a bottom stirring tool 6 can be further installed, the ore pulp (stones) subjected to consolidation deposition is impacted and dispersed through direct physical contact collision with the ore, and the deposited ore pulp is suspended by virtue of the vertical stirring force generated by the longitudinal stirring tool 5 and then filtered and sieved.

The transverse stirring tool 7 comprises a stirring transmission shaft 3 and a stirring screw 7-1, and the stirring screw 7-1 and the stirring transmission shaft 3 are fixedly connected integrally; the longitudinal stirring tool 5 comprises two parts, namely an upper longitudinal stirring tool 5-1 and a lower longitudinal stirring tool 5-2, the upper longitudinal stirring tool 5-1 comprises an upper longitudinal stirring shaft 5-12 and an upper stirring screw 5-11, and the upper stirring screw 5-11 and the upper longitudinal stirring shaft 5-12 are fixedly connected into a whole; the lower longitudinal stirring tool 5-2 comprises a lower longitudinal stirring shaft 5-22 and a lower longitudinal stirring screw 5-21, and the lower longitudinal stirring screw 5-21 and the lower longitudinal stirring shaft 5-22 are fixedly connected into a whole; the upper longitudinal stirring shaft 5-12 and the lower longitudinal stirring shaft 5-22 are connected with the stirring transmission shaft 3 through a 90-degree reversing angle device 8.

The bottom stirring tool 6 is connected with the lower tail ends of the lower longitudinal stirring shafts 5-22, and the lower longitudinal stirring shafts 5-22 are detachably connected with the bottom stirring tool 6, such as in a threaded structure or a cross structure.

Through above design, improve reinforcing disc filter's agitating unit 4's structure for tank body bottom deposit ore pulp fully flows in the horizontal direction and in the vertical direction during the stirring, thereby improves stirring efficiency and stirring quality, makes the deposit ore pulp of tank body bottom and filter disc fully contact and filters, and then improves disc filter's filtration efficiency.

Drawings

FIG. 1a is an outline view of a disc filter.

Fig. 1b is a diagram showing the positional relationship between the stirring device 4 and the filter disk 1 in the prior art.

FIG. 2 is a sectional view of the disk filter in the direction of the vessel in example 1.

FIG. 3 is a sectional view of the disk filter in the direction of the vessel in example 2.

FIG. 4 is a view of the stirring tool of the present invention; wherein, fig. 4a shows the upper and lower longitudinal stirring tools 5-2 and the bottom stirring tool 6, and fig. 4b shows the transverse stirring tool 7.

Fig. 5 shows a 90-degree reversing angle 8, which is a connecting tool between the upper longitudinal stirring tool 5-1, the lower longitudinal stirring tool 5-22 and the transverse stirring tool 7.

Fig. 6 is a diagram showing the positional relationship between the longitudinal stirring tool 5 and the bottom stirring tool 6 and between the tank body 2 and the filter disc 1.

Fig. 7 is a diagram of the position relationship between the horizontal stirring tool 7, the tank body 2 and the filter disc 1.

Detailed Description

Example 1

As shown in fig. 2, a disc filter comprises a plurality of filter discs 1 and a filter disc group consisting of the filter discs 1, a main shaft transmission device, a stirring device 4, a stirring transmission shaft 3, a discharging device, a material guide device, a tank body 2, an ore feeding device and a lubricating system. The stirring device 4 comprises a longitudinal stirring tool 5 and a transverse stirring tool 7; the transverse stirring tool 7 is arranged above the bottom of the tank body 2 and penetrates through the right lower part of the filter disc 1; the longitudinal stirring tool 5 is arranged above the bottom of the tank body 2 and is positioned between the filter discs 1.

The transverse stirring tool 7 comprises a stirring transmission shaft 3 and a stirring screw 7-1, and the stirring screw and the stirring transmission shaft 3 are fixedly connected integrally; the longitudinal stirring tool 5 comprises two parts, namely an upper longitudinal stirring tool 5-1 and a lower longitudinal stirring tool 5-2, the upper longitudinal stirring tool 5-1 comprises an upper longitudinal stirring shaft 5-12 and an upper stirring screw 5-11, and the upper stirring screw 5-11 and the upper longitudinal stirring shaft 5-12 are fixedly connected into a whole; the lower longitudinal stirring tool 5-2 comprises a lower longitudinal stirring shaft 5-22 and a lower longitudinal stirring screw 5-21, and the lower longitudinal stirring screw 5-21 and the lower longitudinal stirring shaft 5-22 are fixedly connected into a whole; the upper longitudinal stirring shaft 5-12 and the lower longitudinal stirring shaft 5-22 are connected with the stirring transmission shaft 3 through a 90-degree reversing angle device 8.

Example 2

As shown in FIG. 3, the lower end of the stirring device 4 is preferably provided with a bottom stirring tool 6 connected to the lower end of the lower longitudinal stirring shaft 5-22. When ore with high density and easy deposition exists in the ore pulp in the tank body, the ore pulp or ore deposited at the bottom of the tank is stirred and dispersed by a bottom stirring tool 6 to be suspended in the ore pulp and further adsorbed at the bottom of the filter disc.

The bottom stirring tool 6 comprises a stirring wheel 6-1 and stirring blades 6-2, the stirring wheel 6-1 is of a circular structure, a plurality of crossed radial strips are fixedly arranged along the diameter direction of the stirring wheel 6-1, and at least 3 stirring blades 6-2 with different lengths along the vertical direction are fixedly arranged on each radial strip. As shown in fig. 6, the length of the stirring blade 6-2 gradually decreases from the center of the stirring wheel 6-1 to the periphery of the stirring wheel, namely: the length of the stirring blade 6-2 positioned at the center of the stirring wheel 6-1 along the vertical direction is larger, and the length of the stirring blade 6-2 positioned at the edge of the stirring wheel 6-1 along the vertical direction is smaller; the stirring blade 6-2 positioned at the edge of the stirring wheel 6-1 is just contacted with the side wall of the bottom of the tank body 2, and the stirring blade 6-2 positioned at the center of the stirring wheel 6-1 is just contacted with the center of the bottom of the tank body 2.

Example 3

Preferably, the lower longitudinal stirring shafts 5-22 are detachably connected to the bottom stirring tool 6. The lower tail end 5-23 of the lower longitudinal stirring shaft of the lower longitudinal stirring tool 5-2 is provided with a thread; the bottom stirring tool 6 is provided with a threaded hole 6-3 matched with the thread of the lower tail end 5-23 of the longitudinal stirring shaft, and the bottom stirring tool 6 is connected with the lower longitudinal stirring tool 5-2 through the threaded structure.

Example 4

The stirring device 4 further comprises a bottom stirring tool 6, wherein the bottom stirring tool 6 is connected with the lower tail ends of the lower longitudinal stirring shafts 5-22, and the lower longitudinal stirring shafts 5-22 are detachably connected with the bottom stirring tool 6.

The lower end 5-23 of the lower longitudinal stirring shaft of the lower longitudinal stirring tool 5-2 is a cross end 5-23; the bottom stirring tool 6 is provided with a cross hole 6-3 matched with the cross tail end 5-23 at the lower tail end of the longitudinal stirring shaft, and the bottom stirring tool 6 is connected with the lower longitudinal stirring tool 5-2 through the cross structure.

Example 5

When the stirring shaft is installed, the stirring transmission shaft 3 is sleeved with the 90-degree reversing angle device 8, and the upper longitudinal stirring shaft 5-22 and the 90-degree reversing angle device 8 are connected through screws and nuts. The wheel type stirring tool is connected with the lower longitudinal stirring shafts 5-22 in a threaded mode and can be detached, so that when ore pulp density is high and easily-sunk ore pulp minerals are generated, the wheel type stirring tool can be selectively installed so as to obtain larger stirring power.

When the disc filter works, the stirring device 4 keeps running all the time. Ore with higher density in the ore pulp sinks, and the groove bodies 2 among the filter discs 1 are deposited at the bottom of the groove. A transverse stirring tool 7 in the stirring device 4 drives a stirring screw 7-1 to rotate through a stirring transmission shaft 3, and the rotating force enables ore pulp settled at the periphery of the stirring screw 7-1 to flow below the filter disc 1. The lower part of the filter disc 1 is provided with a longitudinal stirring tool 5 and a bottom stirring tool 6, the blade of the bottom stirring tool 6 is matched with the body of the tank bottom, the sedimentary ore pulp of the tank bottom and the side wall of the tank bottom can be stirred completely, the blade stirs the ore pulp of the tank bottom, the easily sedimentary ore with larger granularity and weight in the ore pulp floats in the ore pulp, the upward rotating force stirring force generated by the stirring spiral of the longitudinal stirring tool 5 makes the ore pulp upwards and continuously transported to the bottom of the filter disc 1, and then adsorbed on the filter disc, and further separated from the liquid of the ore pulp by filtration.

Claims

1. A disk filter comprises a plurality of filter disks (1) and a filter disk group consisting of the filter disks, a main shaft transmission device, a stirring device (4), a stirring transmission shaft (3), a discharging device, a material guide device, a tank body (2), an ore feeding device and a lubricating system,

the method is characterized in that: the stirring device (4) comprises a longitudinal stirring tool (5) and a transverse stirring tool (7);

the transverse stirring tool (7) is arranged above the bottom of the tank body (2) and penetrates through the right lower part of the filter disc (1); the longitudinal stirring tool (5) is arranged above the bottom of the tank body (2) and positioned among the filter discs (1);

the transverse stirring tool (7) comprises a stirring transmission shaft (3) and a stirring screw (7-1), and the stirring screw and the stirring transmission shaft (3) are fixedly connected into a whole;

the longitudinal stirring tool (5) comprises two parts, namely an upper longitudinal stirring tool (5-1) and a lower longitudinal stirring tool (5-2), the upper longitudinal stirring tool (5-1) comprises an upper longitudinal stirring shaft (5-12) and an upper stirring screw (5-11), and the upper stirring screw (5-11) and the upper longitudinal stirring shaft (5-12) are fixedly connected into a whole; the lower longitudinal stirring tool (5-2) comprises a lower longitudinal stirring shaft (5-22) and a lower longitudinal stirring screw (5-21), and the lower longitudinal stirring screw (5-21) and the lower longitudinal stirring shaft (5-22) are fixedly connected into a whole;

the upper longitudinal stirring shaft (5-12) and the lower longitudinal stirring shaft (5-22) are connected with the stirring transmission shaft (3) through a 90-degree reversing angle device (8).

2. A disc filter according to claim 1 wherein:

the stirring device (4) further comprises a bottom stirring tool (6), the bottom stirring tool (6) is connected with the lower tail end of the lower longitudinal stirring shaft (5-22), and the lower longitudinal stirring shaft (5-22) is detachably connected with the bottom stirring tool (6).

3. A disc filter according to claim 2 wherein:

the bottom stirring tool (6) comprises a stirring wheel (6-1) and stirring blades (6-2), the stirring wheel (6-1) is of a circular structure, a plurality of crossed radial strips are fixedly arranged in the diameter direction of the stirring wheel (6-1), and at least 3 stirring blades (6-2) with different lengths in the vertical direction are fixedly arranged on each radial strip; from stirring wheel (6-1) center to stirring wheel all around, the length of stirring vane (6-2) reduces gradually, promptly: the length of the stirring blade (6-2) positioned at the center of the stirring wheel (6-1) along the vertical direction is larger, and the length of the stirring blade (6-2) positioned at the edge of the stirring wheel (6-1) along the vertical direction is smaller; the stirring blade (6-2) positioned at the edge of the stirring wheel (6-1) is just contacted with the side wall of the bottom of the tank body (2), and the stirring blade (6-2) positioned at the center of the stirring wheel (6-1) is just contacted with the center of the bottom of the tank body (2).

4. A disc filter according to claim 2 or 3 wherein:

the lower longitudinal stirring shafts (5-22) are detachably connected with the bottom stirring tool (6) in a threaded structure.

5. A disc filter according to claim 2 or 3, wherein:

the lower longitudinal stirring shafts (5-22) are detachably connected with the bottom stirring tool (6) in a cross structure.