CN216934941U - Slurry thickener - Google Patents

Abstract

The utility model discloses a slurry thickener, wherein a tank body is divided into an overflow cavity, a filter cavity and a slurry storage cavity from top to bottom, the overflow cavity and the filter cavity are separated by a horizontally fixed partition plate, and a clear liquid discharge pipe is arranged above the partition plate; the filter cavity is connected with a slurry inlet pipe, a slurry discharge air inlet pipe and a cleaning fluid inlet pipe, a plurality of vertical hollow filter cartridges are arranged in the filter cavity, the upper ends of the filter cartridges can upwards and rotatably penetrate through the partition plate and are provided with liquid discharge ports positioned above the partition plate, and the upper ends of the filter cartridges are provided with driving mechanisms for driving the filter cartridges to rotate; the bottom of the pulp storage cavity is provided with a pulp discharge pipe with a pulp discharge valve, and the pulp discharge pipe is also connected in parallel with a cleaning liquid discharge pipe with a control valve. Cartridge filter and baffle rotatable coupling, during the washing, only need to make the washing liquid soak the cartridge filter to jar internal through the washing liquid, then drive the filter vat rotation, rely on the resistance of washing liquid to erode the filter vat, just can realize the washing to the filter vat, need not to dismantle.

Description

Slurry thickener

Technical Field

The utility model relates to the field of filtering equipment, in particular to a slurry thickener.

Background

The slurry thickener is a slurry filtering device taking a filtering cloth bag as a filter material, and is particularly suitable for thickening processes of slurry such as light calcium carbonate centrifuge slurry return water, nano calcium carbonate cooked slurry and the like, so as to reduce the dehydration time of the dehydration device and improve the machine-hour yield. The slurry thickener needs to frequently clean the filter cloth filter, so that the blockage of the slurry thickener is avoided to influence the use effect.

The utility model discloses a filter cloth filters thick liquid thickener in chinese utility model patent CN201520766938.4, including a jar body, jar body lower part is connected with discharge pipe, and jar body upper portion is provided with the clear water discharge port, and clear water discharge port lower part is provided with the flower orifice plate, is provided with the through-hole on the flower orifice plate, is provided with the filter in the through-hole, is provided with filter fixing device on the flower orifice plate. The filter needs to be taken out from the upper part of the tank body when being cleaned, the filter is replaced and washed outside the tank body, and the filter cloth filter is still inconvenient to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a slurry thickener which is convenient for cleaning a filter cylinder.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the slurry thickener is characterized by comprising a tank body, wherein the tank body is divided into an overflow cavity, a filter cavity and a slurry storage cavity from top to bottom, the overflow cavity and the filter cavity are separated by a horizontally fixed partition plate, and a clear liquid discharge pipe is arranged above the partition plate; the filter cavity is connected with a slurry inlet pipe, a slurry discharge air inlet pipe and a cleaning fluid inlet pipe, a plurality of vertical hollow filter cartridges are arranged in the filter cavity, the upper ends of the filter cartridges can upwards and rotatably penetrate through the partition plate and are provided with fluid discharge ports positioned above the partition plate, and the upper ends of the filter cartridges are provided with driving mechanisms for driving the filter cartridges to rotate; the bottom of the pulp storage cavity is provided with a pulp discharge pipe with a pulp discharge valve, and the pulp discharge pipe is also connected in parallel with a cleaning liquid discharge pipe with a control valve.

The technical scheme is that the top of the filter cylinder is provided with a detachable top cover, the top of the tank body is provided with a lifting top disc, a plurality of cleaning brushes are downwards fixed on the top disc, each cleaning brush corresponds to one filter cylinder and can enter the filter cylinder along with the descending of the top disc to brush the inner wall of the filter cylinder.

The driving mechanism comprises driven gears fixed at the top of each filter cylinder, a plurality of driven gears are in transmission with a driving gear through chains, and the driving gear is connected with a driving motor for driving the driving gears to rotate.

The technical scheme is that the pulp storage cavity is in a cone shape with a downward small opening, an access hole is formed in the pulp storage cavity, and a sealing cover is arranged on the access hole.

The technical scheme is that the filter cartridge comprises a plurality of circular screen columns which are made of a screen plate roll, the circular screen columns are sleeved and fixed, and the pore diameters of the screen holes of the circular screen columns are gradually reduced from outside to inside.

The further technical proposal is that the filter cartridge is rotationally fixed with the clapboard through a bearing.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

this cartridge filter and baffle rotatable coupling of thick liquid thickener, when needs wash the cartridge filter, only need to make the cartridge filter soaked through the washing liquid to the internal washing liquid of jar, then drive the filter vat rotation, the resistance that relies on the washing liquid erodees the filter vat, just can realize the washing to the filter vat, need not to dismantle, discharge washing liquid, convenient operation again after wasing the completion.

Drawings

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

FIG. 1 is a schematic block diagram of a slurry thickener according to the present disclosure;

fig. 2 is a schematic structural view of the drive mechanism of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1 and fig. 2, the slurry thickener can be widely applied to mother liquor thickening or filtering processes in the industries of chemical industry, environmental protection, feed, food and the like, and is suitable for thickening and filtering processes and the like of materials such as calcium carbonate backwater slurry, magnesium carbonate backwater slurry and other chemical industries.

The slurry thickener comprises a tank body which is divided into an overflow cavity 110, a filtering cavity 120 and a slurry storage cavity 130 from top to bottom. The overflow chamber 110 and the filter chamber 120 are separated by a horizontally fixed partition board 1, the circumferential edge of the partition board 1 is fixed on the inner wall of the tank body, and a clear liquid discharge pipe 111 is arranged above the partition board 1. The filter chamber 120 is connected to a slurry inlet pipe 121 for introducing dilute slurry into the tank, a slurry discharge inlet pipe 122 for introducing gas into the tank to facilitate discharge of concentrated slurry, and a cleaning solution inlet pipe 123 for introducing cleaning solution into the tank when cleaning and maintenance are required. A plurality of vertical hollow filter cartridges 2 are arranged in the filter chamber 120, the upper ends of the filter cartridges 2 rotatably penetrate through the partition plate 1 upwards through bearings and are provided with liquid discharge ports 21 positioned above the partition plate 1, and the upper ends of the filter cartridges 2 are provided with driving mechanisms for driving the filter cartridges to rotate. The pulp storage cavity 130 is in a conical shape with a downward small opening, thick pulp can be conveniently discharged, an access opening 133 is arranged on the pulp storage cavity 130, a sealing cover is arranged on the access opening 133, a pulp discharge pipe 131 with a pulp discharge valve is arranged at the bottom of the pulp storage cavity 130, and a cleaning liquid discharge pipe 132 with a control valve is connected in parallel on the pulp discharge pipe 131.

The driving mechanism comprises a driven gear 51 fixed on the top of each filter cartridge 2, a plurality of driven gears 51 are in transmission with a driving gear 53 through a chain 52, and the driving gear 53 is connected with a driving motor for driving the driving gear to rotate. Preferably, every three filter cartridges 2 arranged in a triangle are driven by one driving motor, and a plurality of driving motors are arranged according to the arrangement of the filter cartridges 2.

The cartridge filter 2 of this disclosure includes a plurality of circular screen columns of making by the perforated plate roll, and a plurality of circular screen columns cup joint and are fixed through modes such as upper end welding, and a plurality of circular screen columns from outer to interior mesh aperture diminishes gradually. The filter cartridge 2 can bear extremely high negative pressure, so that the surface of the filter material can be washed clean by back washing each time, and blockage is avoided. And the filter cylinder 2 is not damaged by adopting an integral process, so that the defect that the filter cloth of the filter cylinder must be frequently replaced due to the fact that the filter cloth of an old thickening tank is damaged and leaks slurry is avoided.

When the slurry thickener works, slurry to be thickened is pumped into the tank body through the slurry inlet pipe 121 by the feed pump, filtrate enters the filter cylinder 2 through the filter material along with the increase of the slurry pressure in the tank body, and further rises and is converged above the partition plate 1 of the tank body, and is discharged through the liquid outlet 21, so that clear liquid enters the overflow cavity 110 and is discharged out of the tank body through the clear liquid discharge pipe 111 to enter a clear liquid pool. The particles of the material to be thickened are retained in the tank below the partition board 1 due to the blocking of the filter material. Along with the continuous progress of the thickening process, the material concentration in the thickening tank continuously rises, and when the set value input is reached, the system automatically opens the pneumatic discharge valve to discharge.

This thick liquid thickener's cartridge filter 2 and 1 rotatable coupling of baffle, when needs wash cartridge filter 2, let in the washing liquid to the internal washing liquid that lets in of jar through washing liquid feed liquor pipe 123, make the washing liquid soak cartridge filter 2, then drive the filter vat rotation, rely on the resistance of washing liquid to erode the filter vat, just can realize the washing to the filter vat, need not to dismantle, discharge the washing liquid again after the washing completion, convenient operation. After the cleaning is completed, the cleaning liquid drain pipe 132 is opened to drain the cleaning liquid.

The top of the filter cartridge 2 is provided with a detachable top cover, the top of the tank body is provided with a liftable top disc 3, the top of the tank body is provided with a plurality of vertically upward screw rods, the top disc 3 is provided with threaded holes matched with the screw rods in a threaded manner, the lower ends of the screw rods are rotatably connected through bearings and driven to rotate through a lifting motor, and the lifting of the top disc 3 can be realized through the positive rotation or the reverse rotation of the lifting motor. A plurality of washing brushes 4 are fixed downward on the top plate 3, one filter cartridge 2 for each washing brush 4, and can brush the inner wall of the filter cartridge 2 as the top plate 3 descends. The cleaning brush 4 includes a fixing rod, fiber bundles are fixed on the fixing rod in a radial shape, the cleaning brush 4 is integrally in a cylindrical shape, and the diameter of the cleaning brush is slightly larger than the inner diameter of the filter cartridge 2.

When the filter cylinder 2 needs to be cleaned, the top cover on the filter cylinder 2 is opened, the top disc 3 is driven to descend, the cleaning brush 4 enters the filter cylinder 2, the driving mechanism drives the filter cylinder 2 to rotate, the washing brush rotates relative to the filter cylinder 2, and the filter cylinder 2 is washed.

The above is only a preferred embodiment of the utility model, and any simple modifications, variations and equivalents of the utility model may be made by anyone in light of the above teachings and fall within the scope of the utility model.

Claims (6)

1. The slurry thickener is characterized by comprising a tank body, wherein the tank body is divided into an overflow cavity (110), a filter cavity (120) and a slurry storage cavity (130) from top to bottom, the overflow cavity (110) and the filter cavity (120) are separated by a horizontally fixed partition plate (1), and a clear liquid discharge pipe (111) is arranged above the partition plate (1); the filter cavity (120) is connected with a slurry inlet pipe (121), a slurry discharge air inlet pipe (122) and a cleaning liquid inlet pipe (123), a plurality of vertical hollow filter cartridges (2) are arranged in the filter cavity (120), the upper ends of the filter cartridges (2) can upwards rotatably penetrate through the partition plate (1) and are provided with liquid discharge ports (21) positioned above the partition plate (1), and the upper ends of the filter cartridges (2) are provided with driving mechanisms for driving the filter cartridges (2) to rotate; the bottom of the pulp storage cavity (130) is provided with a pulp discharge pipe (131) with a pulp discharge valve, and the pulp discharge pipe (131) is also connected in parallel with a cleaning liquid discharge pipe (132) with a control valve.

2. The slurry thickener according to claim 1, wherein the top of the filter cylinder (2) is provided with a detachable top cover, the top of the tank body is provided with a liftable top disc (3), a plurality of cleaning brushes (4) are downwards fixed on the top disc (3), one filter cylinder (2) corresponds to each cleaning brush (4), and the inner wall of the filter cylinder (2) can be brushed along with the descending of the top disc (3) into the filter cylinder (2).

3. The slurry thickener according to claim 1, wherein the driving mechanism comprises a driven gear (51) fixed on the top of each filter cylinder (2), a plurality of driven gears (51) are in transmission with a driving gear (53) through a chain (52), and the driving gear (53) is connected with a driving motor for driving the driving gear to rotate.

4. The slurry thickener according to claim 1, wherein the slurry storage chamber (130) is conical with a downward small opening, and a maintenance opening (133) is arranged on the slurry storage chamber (130), and a sealing cover is arranged on the maintenance opening (133).

5. The slurry thickener according to claim 1, wherein the filter cartridge (2) comprises a plurality of round screen columns made of screen mesh plate roll, the plurality of round screen columns are sleeved and fixed, and the aperture of the screen mesh of the plurality of round screen columns gradually decreases from the outside to the inside.

6. The slurry thickener according to claim 1, wherein the filter cartridge (2) is rotatably fixed to the partition plate (1) by a bearing.

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