CN2198960Y - S-shaped groove continous filtering concentrator - Google Patents

Abstract

The utility model relates to an S-shaped groove continuous filter thickener. The filter board and the groove board in the filtering apparatus is clamped by the pushing-tight apparatus. Both sides of the filter board are provided with the passages for clearing liquid and the filtration medium. The filter board and the groove board are arranged compartmental, and the passage of the feed pulp is S-shaped. The filtration medium of the filter thickener can be loaded and unloaded rapidly. The filter thickener can be opened and cleaned conveniently. Under the similar shape size, compared with the board-sheet type continuous thickener, the utility model can increase the area one times and can be used for the continuous thickening to the solid-liquid mixtures, particularly carry out the thickening and clearing continuously and rapidly to the feed pulp whose granula is extreme fine, the sedimentation rate is slow and even difficult to sedimentate. The filter thickener has a more fine treatment efficiency to the feed pulp whose granula is coarse and sedimentation rate is fast.

Description

S-shaped groove continous filtering concentrator

The utility model relates to a kind of continuous filtration thickener, is used for the continuous concentration to solidliquid mixture, particularly superfine, sinking speed to particle slowly in addition the slip that is very difficult to sedimentation carry out concentrating apace continuously and washing.

In prior art, Chinese patent 89219132.5 has adopted the undulate slurry vessel in the plate, make along the slip direct of travel and its groove width is diminished gradually or its groove depth is shoaled gradually, or the structure that makes groove width and groove depth reduce and shoal simultaneously, continuous concentration and washing have not only been solved to solidliquid mixture, also solve in the filtrate filtration of entrained solids particle and worn the filter problem, had and significantly prevent the filter screen ponding, thereby guaranteed continued operation.But also there are weak points such as filter area is little, filter medium mounting or dismounting inconvenience.

The purpose of this utility model provides a kind of more novel continuous high-efficient thickener, can make the mounting or dismounting of the equipment of opening and filter medium convenient, and similar onesize type filter area is doubled.

In order to realize this purpose, the utility model provides a kind of snakelike tank continuous filtration thickener, it comprises filter, feed pipe and solid-liquid medium discharge pipe, wherein filter comprises frame, filter plate, frid and holding device, near frame one end is a plate, the other end at filter is a tailgate, and a plate is other to be the frid that has feed pipe, and tailgate is other to be the frid that has discharge pipe.The filter plate both sides have big muscle and some parallel each other little muscle respectively, make to form a clear liquid groove between two adjacent muscle, and an end of filter plate has the slip flow channel, makes the trend of slip be continuous S shape.The lower end of filter plate has the purified liquor outlet hole, and slot plate between two filter plates has on the frid and the corresponding big muscle of filter plate.All filter plates and frid can adopt hydraulic pressure or electronic holding device to clamp.The clamping back makes material be parallel to filter medium and makes turbulent motion realization dynamic filtration at the inner well-regulated long serpentine channel that is communicated with that forms of filter plate frid, has guaranteed working continuously of thickener.

Below in conjunction with detailed description and the description of the drawings thereof, structure composition of the present utility model, operation principle and advantage thereof are done a detailed introduction to implementing an embodiment of the present utility model.

The accompanying drawing of present embodiment is:

Fig. 1 is the front view and the vertical view of present embodiment.

Fig. 2 is a charging frid schematic diagram.

Fig. 3 is the filter plate schematic diagram.

Fig. 4 is the frid schematic diagram.

Fig. 5 is a discharging frid schematic diagram.

Fig. 6 is a plate or tailgate schematic diagram.

Fig. 7 is a S shape passage flow direction of material schematic diagram.

As shown in Figure 1, the front view and the vertical view of the composition of the snakelike tank continuous filtration thickener shown in the present embodiment are as follows:

Snakelike tank continuous filtration thickener is made up of frame ［ 1 ］, filter ［ 13 ］, holding device ［ 10 ］.Slip enters the top of filter ［ 13 ］ from feed pipe ［ 8 ］, discharges through purified liquor outlet hole ［ 12 ］ through the clear liquid of filter ［ 13 ］ filtering solid.Slip after concentrating then passes through underflow discharge nozzle ［ 9 ］ and discharges, and the slip after concentrating can mix again with original slip and return to and enters filter ［ 13 ］, and the number of times of circulation is decided according to the required slip solid-to-liquid ratio that reaches.

Filter ［ 13 ］ mainly is made up of some filter plates ［ 4 ］ and frid ［ 5 ］, at the end near frame is a plate ［ 2 ］, adjacent is the frid ［ 3 ］ that has feed pipe, the other end at filter ［ 13 ］ is tailgate ［ 7 ］, and adjacent is the frid ［ 6 ］ that has discharge pipe.Big muscle and frame between having the frid of feed pipe ［ 3 ］ and having the frid ［ 6 ］ of discharge pipe, on filter plate ［ 4 ］ and the frid ［ 5 ］ match, and filter plate ［ 4 ］ and frid ［ 5 ］ are horizontal or vertical being spaced.Have the purified liquor outlet hole ［ 12 ］ that is communicated with clear liquid groove ［ 15 ］ in the lower end of filter plate ［ 4 ］, filter ［ 13 ］ is to be clamped by holding device ［ 10 ］, in filter ［ 13 ］ below chassis ［ 11 ］ is arranged, and the chassis is used to discharge clear liquid.

Fig. 2 has represented the detailed structure of filter to Fig. 6.

Shown in Figure 2 is the schematic diagram of charging frid ［ 3 ］, and charging hole ［ 21 ］ is arranged on the frid, and this is the slip inlet, and respectively there is a rib ［ 14 ］ that protrudes the both sides of charging frid, and have big muscle ［ 20 ］ to be used to support filter medium in the middle of the charging frid.

Shown in Figure 3 is the schematic diagram of filter plate ［ 4 ］, is useful on the outstanding big muscle ［ 18 ］ and some parallel each other little muscle ［ 19 ］ that supports filter medium on the filter plate both side surface respectively, forms a clear liquid groove ［ 15 ］ between adjacent two muscle.One end of filter plate has the slip flow channel ［ 17 ］ that is communicated with frid ［ 5 ］, filter plate has groove ［ 16 ］ near the both sides of slip flow channel ［ 17 ］ one ends, and the lower end of filter plate ［ 4 ］ has the purified liquor outlet hole ［ 12 ］ that is communicated with clear liquid groove ［ 15 ］.

Shown in Figure 4 is the schematic diagram of frid ［ 5 ］, have on the frid ［ 5 ］ and the corresponding big muscle of filter plate ［ 4 ］ ［ 20 ］, frid ［ 5 ］ both sides and filter plate groove ［ 16 ］ corresponding position have long protrusion rib ［ 14 ］ respectively, filter plate groove ［ 16 ］ and frid protrude rib ［ 14 ］ and are used to compress filter medium, make slip can not enter clear liquid groove ［ 15 ］.

Shown in Figure 5 is the schematic diagram of discharging frid ［ 6 ］, and discharge opening ［ 22 ］ is arranged on the frid, and the slip after concentrating is discharged thus.Respectively there is a rib ［ 14 ］ that protrudes the both sides of frid, and have on the frid and the corresponding big muscle of filter plate ［ 4 ］ ［ 20 ］ is used to support filter medium.

Shown in Figure 6 is the schematic diagram of a plate ［ 2 ］ or tailgate ［ 7 ］, in a side of a plate or tailgate outstanding big muscle ［ 18 ］ and some parallel each other little muscle ［ 19 ］ is arranged, and forms a clear liquid groove ［ 15 ］ between adjacent two muscle.One end of plate or tailgate has slip flow channel ［ 17 ］, and a plate or tailgate have groove ［ 16 ］ near slip flow channel ［ 17 ］ one ends, and the lower end of a plate or tailgate has purified liquor outlet hole ［ 12 ］.Plate ［ 2 ］ and tailgate ［ 7 ］ are the demifacet filter plates.

Fig. 7 is a S shape passage flow direction of material schematic diagram, constitutes S shape passage between continuous three frids, two filter plates, and what make slip moves towards S-shaped, and arrow is represented the direction of motion of material.As Fig. 2, Fig. 5, shown in Figure 7, slip enters from the charging hole ［ 21 ］ on the charging frid ［ 3 ］, along arrow direction, when slip flow to discharging frid ［ 6 ］, promptly discharges from discharge opening ［ 22 ］.

Pending solidliquid mixture enters filter ［ 13 ］ by being pumped into feed pipe ［ 8 ］, and the density of filter medium can be regulated as required in filter, and the flow direction of material is the S shape that is continuous.Mother liquor in the slip leans on the pressure of pump to pass filter medium and enters the clear liquid passage, and constantly discharges from purified liquor outlet hole ［ 12 ］.Solids then can not pass in the slip that filter medium is retained in motion, take away with the slip of motion, thereby slip is constantly concentrated, and the slip after concentrating is discharged through discharge nozzle ［ 9 ］.

Slip is to be parallel to filter medium to do quick turbulent motion, sees through filter medium and leaches and filtrate is vertical direction.In the actual filtration operation, filter and constantly form on the filter medium surface, the slip of continuous passive movement washes away again simultaneously, and these two kinds of effects reach balance and form typical dynamic filtration.In concentration process, can form on the filter medium as thin as a wafer a metafiltration also, just because of the filter of this skim and effect, the filtrate that discharges will through this metafiltration also be passed filter medium and discharge from purified liquor outlet hole ［ 12 ］ earlier again.Simultaneously because slip is horizontal dynamic filtration, therefore the filtrate that discharges is very clear, can make that particle is superfine, sinking speed slowly in addition the slip that is very difficult to sedimentation carry out concentrating apace continuously and washing.

Adopting filter area of the present utility model is 10m ²Snakelike tank continuous filtration thickener handle flyash slip solidliquid mixture, wherein the content of liquid phase water is 98%(weight) about, and the content of solid phase flyash particle is 2%(weight) about, most of particle grain size are at 0.5～2 μ m.With material from 2%(weight) about be concentrated to 55%(weight) more than, liquid phase more than 96.4% is removed in this moment slip, the average rate of discharge of clear liquid is about 4.5t/h.The filtrate of discharging, as clear as crystal as running water, the capture rate of solid particle reaches more than 99.99%.

Big muscle and frame on filter plate of present embodiment ［ 4 ］ and the frid ［ 5 ］ match, and protrude rib ［ 14 ］ on groove on the filter plate ［ 16 ］ and the frid and coincide, and filter medium is compressed.Filter plate ［ 4 ］ is two-sided can both install filter medium, carries out two-sided filtration, makes filter area filter to compare with single face and doubles.Filter plate ［ 4 ］ and frid ［ 5 ］ are horizontal or vertical being spaced, and slip mobile in filter ［ 13 ］ is continuous S shape.The entire equipment filter medium is made quickly assembled and disassembled, and it is more convenient to change filter medium, and these architectural features are principal characters of the present utility model.

The utility model just can make snakelike tank continuous filtration thickener of the present invention continued operation owing to adopted with filter plate shown in the above-mentioned principal character and frid structure, becomes the high efficiency concentrator.

But filter medium fast free of the present utility model mounting or dismounting, it is very convenient to open equipment, cleaning flushing etc., compares with continuous filtering plate thickener, in the few situation of profile difference in size, filter area is doubled. But the utility model continued operation, can be superfine to particle, sinking speed slowly in addition the slip that is very difficult to sedimentation concentrate rapidly continuously and wash, then effect is better for slip that sedimentation is fast.

In sum, adopt the filter plate both sides that filter medium is arranged, filter plate and frid are spaced, the flow direction of slip is the s-shaped groove continous filtering concentrator of the present utility model of the improved new structure of continuous S-shaped, have equipment, filter medium mounting or dismounting easy to clean, filter area increases greatly, but the advantage of continued operation. Thereby guaranteed the continuous concentration of solidliquid mixture, overcome the deficiency that remains in the same category of device in the prior art.

Claims (4)

1, a kind of snakelike tank continuous filtration thickener, it comprises filter [13], feed pipe [8], underflow discharge nozzle [9] and purified liquor outlet hole [12], wherein filter [13] is by frame [1], plate [2], at least one filter plate [4], tailgate [7] and holding device [10] are formed, it is characterized in that: described filter [13] is a plate [2] near frame one end, adjacent is the frid [3] that has feed pipe, outstanding big muscle [18] and some parallel each other little muscle [19] are arranged respectively on the filter plate both side surface, form clear liquid groove [15] between adjacent two muscle, one end of every filter plate has the slip flow channel [17] that is communicated with frid [5], have groove [16] in its both sides, a place near the slip flow channel [17] on the filter plate [4], filter medium is equipped with in the both sides of filter plate, the lower end of filter plate has the purified liquor outlet hole [12] that is communicated with clear liquid groove [15], slot plate [5] between two filter plates [4], have on the described frid [5] and the corresponding big muscle of filter plate [4] [20], frid both sides and filter plate groove [16] corresponding position have long protrusion rib [14] respectively, filter plate [4] and frid [5] are spaced, at the inner long serpentine channel that is communicated with that forms of filter plate frid, make the trend of slip be continuous S shape, the other end at filter [13] is tailgate [7], adjacent is the frid [6] that has discharge pipe, described plate [2], tailgate [7] is the demifacet filter plate.

2, according to the described snakelike tank continuous filtration of claim 1 thickener, it is characterized in that: big muscle and frame on described filter plate ［ 4 ］ and the frid ［ 5 ］ match.

3, according to the described snakelike tank continuous filtration of claim 1 thickener, it is characterized in that: described filter plate ［ 4 ］ and frid ［ 5 ］ are horizontal or vertical being spaced.

4, according to the described snakelike tank continuous filtration of claim 1 thickener, it is characterized in that: described filter ［ 13 ］ is clamped by holding device ［ 10 ］.

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