CN1834025A

CN1834025A - Single-stage horizontal floatation cell

Info

Publication number: CN1834025A
Application number: CN 200510046048
Authority: CN
Inventors: 曾碚凯; 傅祖鸿; 曾碚勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2006-09-20
Anticipated expiration: 2025-03-18
Also published as: CN100400187C

Abstract

This invention relates to pulp waste residual processing, concretely speaking, and a single-class flotation cell, which comprises a cell body, a scraper conveyor, airscrews, strap sieves, a water treatment device and an elevator. The cell body is wide in upper part and narrow in lower part, with a material inlet and a material outlet on each edge and a material gathering cell in the bottom where a waste well is set towards the material outlet edge. The waste well is installed together with the elevator through the corridor oblique above. Multiple airscrews are of a waterwheel-like structure and are parallel and equidistantly distributed above the body cell. The scraper conveyor perforates the bottom of the body cell and circles the waterwheel-like airscrews so as to form a close structure. Besides, there are also strap sieves set at the material outlet and the exit of scoop elevator and the strap sieves are connected with water treatment devices respectively. This invention has the advantages of significant water saving effect, high work efficiency and better recycled plastics quality.

Description

Single-stage horizontal floatation cell

Technical field

The present invention relates to the paper pulp waste residue and handle specifically a kind of single-stage horizontal floatation cell.

Technical background

Paper is a kind of material of reusable edible, has therefore obtained using widely in the modern life, is used for making books, newspaper, magazine, various wrapping material or the like.Exhausted waste paper can reclaim, and makes paper pulp again, converts various paper again to, so the annual waste paper that a large amount of recovery are all arranged is used for pulping.Yet for paper product well-pressed beautiful, a lot of paper product have all adopted plastic film coated, contain a considerable amount of tectorial papers in the waste paper that reclaims, because conventional at present Waste Paper Handling can not be separated the plastics and the paper of tectorial paper, therefore it have to be discharged as unavailable waste residue, also contain simultaneously non-paper foreign material such as the metal infiltrated in the reclaimed waste paper process, sandstone, leather, timber (account for waste paper total amount 5%) in these waste residues, disregard the waste paper of domestic recovery, China's imported waste paper in 2004 just has 1,200 ten thousand tons, and annual rate of increase with 34% is increasing year by year.Therefore the ejecta of a large amount of like this waste paper pulpings is just handled and become a big problem, at present domesticly just simply its burning is buried again, this has not only caused huge pollution to environment, but also has wasted callable resource in the ejecta.

Also once reported in some disclosed technology the paper pulp waste residue was handled recovery plastics wherein.The multistage horizontal floatation cell equipment that adopts in the flotation operation wherein, flotation cell is several mutual isolation, the stepped arrangement of the tank that the degree of depth is different forms, the paper fiber that contains a little through the paper pulp waste residue that enters the flotation operation after the multiple tracks pre-treatment, PP, PE, OPP, PVC are arranged in the plastic hybrid, that recovery value is arranged most is PP, PE, OPP, and its proportion minimum is slightly less than water.PVC proportion is slightly larger than water.Because they stir together, want separately however stop break up them, adopt the purpose of multistage tank to allow floating matter when low tank falls, produce once beating from high tank exactly, having what tank just can produce several times pats, impel the plastic hybrid of the group of stirring to scatter like this, heavy precipitation, light floating.Certainly the number of times of patting more more separates well more, but structure is just huge more.In addition, because the foreign material that are deposited in each groove will be fished for respectively, bother very much again, so the progression of tank just can not be too many.Therefore prior art is very few to the beating number of times of flotation thing, also has a little heavy plastics not separate thoroughly, can foam when granulation, has seriously influenced the quality that reclaims plastics.In addition owing to discharge in the flotation cell of prior art is limited, cause floating matter to block through the upstream side of the pilot trench joining place of being everlasting, treatment process is not smooth, if do not adopt manual intervention just to influence working efficiency, simultaneously, by artificial use vaccum suction pipe, the method labour intensity of big proportion foreign material being drawn out from mutual isolation, different depths settling bath is very big by turns, and operating condition is abominable, and the flotation operation does not have circulating water treatment, cause existing flotation process efficiency low, water loss is big.Influenced the economic benefit of plastics recovery.

Summary of the invention

In order to solve in the prior art the beating number of times of floating matter and to extract contradiction between the sedimentary workload, the present invention proposes a kind of single-stage horizontal floatation cell of one-level formula in other words.Adopt the present invention, can be to carrying out flotation with unserviceable coating plastic film waste paper in the regenerated papermaking slurry, utilize gravity and beating constantly, impel heavy plastics (as PVC and paper pulp fiber) to sink, and the plastics of light specific gravity (PP, PE, OPP plastics) separate better with them; Increase the processing of recirculated water, reach and improve the purpose that reclaims plastic quality and reduce the recycle-water consumption; Also increased big automatic recovery, improved the efficient of system than heavy plastics.

Technical scheme of the present invention is: comprise cell body, scraper conveyer, spiral pendulum oar, belt sieve, water treatment device, lift, wherein cell body is a structure wide at the top and narrow at the bottom, two ends are provided with opening for feed, discharge port, in its bottom material collecting tank is arranged, to the end of discharge port one waste material well is set in material collecting tank; In path that the waste material well is provided with by oblique upper and hoist installation together; A plurality of spirals pendulum oars are the water wheel type structure, and are parallel, equidistantly be arranged in the top of cell body, and scraper conveyer passes the cell body bottom part ring in water wheel type spiral pendulum oar top, is closing structure; Belt is set respectively sieves, be connected to water treatment device separately in the exit of discharge port and chapelet;

Described waste material bottom is lower than the bottom of material collecting tank; Described scraper conveyer is equipped with a plurality of scraper plates abreast for to guide two groups of steel cord structures by some guide wheels on wireline, the guide wheel that is installed in the bottom of cell body is positioned at material collecting tank, and the scraper plate of the bottom of cell body extends in the waste material well; The guide wheel that is installed in the cell body top is positioned at spiral pendulum oar two ends; Described spiral pendulum oar has an oar axle, and the bearing support by two ends straddles it on cell body, and a plurality of blades are sleeved on the oar axle by cover; Described oar axle two ends are cylindrical, and middle portion is an orthohexagonal; Described lift is the bucket type structure, be installed in the path, by two groups of lift guide wheels, two head and the tail closed carry the bucket wireline, and several carry bucket and form, one group in two groups of guide wheels is installed in the bottom, path, in the waste material well, another group is raised the top that machine support is supported on the path outlet, carries the bucket steel wire loop on guide wheel for two, carry bucket along same direction be distributed on carry the bucket wireline on, its axis is consistent with the axis in path;

Described belt sieve is by two deflector rolls, the travelling belt that has sieve aperture, chute catchments, belt sieve support is formed, and two guide roller axis that two deflector rolls are contained in respectively on the chute that catchments put, and travelling belt is enclosed within on the deflector roll, the catchment top of chute and travelling belt has disposed a recovering hopper, simultaneously, belt sieves by stent support on cell body, and is directly installed on the concrete brace table; The chute that catchments is a water out, and the direction of travel of travelling belt is the outlet of solids, and the solids outlet is higher than water out; The outlet of the scraper-trough conveyer that catchments that is installed in belt sieve that continues respectively of described water treatment device, and be connected to the opening for feed of cell body by circulating water pipeline.

Compared with prior art, the present invention has following usefulness:

Under the driving of spiral pendulum oar that is provided with the multiple tracks water wheel type above the flotation cell of the present invention, ceaselessly pat and promote floating matter at power driving mechanism, increased the beating number of times widely, solved the obstructing problem of floating matter in the prior art, throw out is all dropped in the cell body, the device that the cell body bottom is provided with automatic collecting precipitation thing and takes out.Also the intravital water filtration of groove is recycled.Solved well at this procedure improve quality, the problem of efficient, water consumption, extremely strong practicality is arranged.Specific as follows:

1. reclaim the better quality of plastics.Owing in flotation cell of the present invention, increased the number of times of patting floating matter widely, the plastic hybrid of the group of stirring is opened substantially, the floating distance of lengthening more helps the precipitation of big proportion foreign material, purity from the plastics of discharge port output is greatly improved compared to prior art like this, make the recovery plastics epigranular after the granulation, the color and luster unanimity, quality is guaranteed.

2. operating efficiency is higher.The present invention is transformed into the pushing effect of single-stage tank and spiral pendulum oar with multistage tank flotation of the prior art, so just can avoid the obstruction of floating matter and collect heavy sediment miscellaneous object uniformly.Be provided with scraper conveyer in the cell body bottom, automatically sediment miscellaneous object is collected the waste material well, the waste material that adopts specially designed chapelet will collect again in the waste material well concentrates drain tank external, and this process is automatization fully, so operating efficiency is very high.

3. water-saving result is good.The use-pattern of running water in the flotation operation in the prior art, water loss is very big, if the water cycle of flotation cell is used, the SS index in the water can uprise soon, the water quality viscosity increases, and seriously influences the flotation quality.Though adopt the floating matter that sorts out when of the present invention when outlet is discharged, also to flow out a lot of water (the same) with prior art, but disposed the belt sieve in sorting thing exit, the sorting thing is leached, and effusive water is collected in the water treatment device, after chemical reaction and physical sedimentation, after making SS index in the water reach requirement, again it is recycled; Simultaneously, the high pollution water that from the waste material that chapelet is discharged, also contains a large amount of cell body bottoms, filtration through the belt sieve, solid expense material is discharged from, high pollution water enters water treatment device from the chute that catchments of belt sieve, treated low SS index water can return opening for feed through circulating water pipeline again, recycling.Compared with prior art, water consumption of the present invention reduces a lot.

Description of drawings

Fig. 1 is single-stage horizontal floatation cell structural representation of the present invention (among the figure material collecting tank and waste material well have been done broken section, shown the structure of the chapelet that disposes in the scraper conveyer that disposes and the waste material well in material collecting tank).

Fig. 1-the 1st is installed in the conical gear engagement detailed structure enlarged view that reaches on the drive shaft on the oar axle among Fig. 1.

Fig. 2 is the lateral side view of single-stage horizontal floatation cell of the present invention (having showed the structure on the rack-mount and coagulation earthen platform of belt sieve in the structure).

Fig. 3 is the structural representation of belt sieve among Fig. 1.

Fig. 4 is a spiral pendulum oar assembling synoptic diagram among Fig. 1.

Fig. 5 is a single spiral pendulum paddle structure synoptic diagram among Fig. 4.

Label declaration:

1 is cell body, and 2 is opening for feed, and 3 is scraper conveyer, and 4 are spiral pendulum oar, 5 is discharge port, and 6 are belt sieve A, and 7 is material collecting tank, and 8 is the waste material well, 9 is lift, and 10 is the path, and 11 are belt sieve B, 12 is water treatment device A, and 13 is water treatment device B, and 31 is guide wheel A, 32 is guide wheel B, and 33 is guide wheel C, and 34 is guide wheel D, 35 is wireline, and 36 is scraper plate, and 41 is the oar axle, 42 is blade, and 43 are cover, and 44 is bearing support, 45 is conical gear, and 46 is drive shaft, and 47 is the drive shaft bearing, 61 is deflector roll, and 62 is travelling belt, and 63 are the chute that catchments, 64 is the deflector roll axle sleeve, and 65 is recovering hopper, and 66 is support, 67 is brace table, and 91 is the lift guide wheel, and 92 for carrying bucket, 93 for carrying the bucket wireline, and 94 is the lift support, and 121 is pipeline.

Embodiment

The present invention will be described in detail below in conjunction with embodiment and accompanying drawing:

Shown in Fig. 1,2,3,4, the present invention mainly is made up of cell body 1, scraper conveyer 3, water wheel type spiral pendulum oar 4, belt sieve 6, water treatment device A12, chapelet 9, water treatment device B13, wherein cell body 1 is a structure wide at the top and narrow at the bottom, two ends are provided with opening for feed 2, discharge port 5, in its bottom material collecting tank 7 is arranged, arranged a waste material well 8 (its bottom is lower than the bottom of material collecting tank 7) to the end of discharge port 5 in material collecting tank 7; Arranged a path 10 at the oblique upper of waste material well 8 again, it is prepared for lift 9 is installed.A plurality of spirals pendulum oars 4 be the water wheel type structure, and are parallel, equidistantly be arranged in the top of cell body 1, and scraper conveyer 3 passes cell body 1 bottom part ring and puts oar 4 tops in the water wheel type spiral, is closing structure; Belt sieve 6 is set in the exit of discharge port 5 and chapelet 9 respectively, and is connected to water treatment device A12 and water treatment device B13 respectively, the water after the processing returns inlet through pipeline 121.

Described scraper conveyer 3 is by 4 guide wheels, and guide wheel A31, guide wheel B32, guide wheel C33, guide wheel D34 are guiding two groups of wireline 35, and several scraper plates 36 are housed on wireline 35 abreast, guide wheel A31, guide wheel B32 be installed in cell body 1 center line above.Guide wheel C33, guide wheel D34 are installed in the material collecting tank 7 of bottom of cell body 1, make scraper plate 36 installation sites on the scraper conveyer 3 near the bottom of material collecting tank 7.Its length connects material collecting tank 7, and extends in the waste material well 8.

As shown in Figure 1, the present invention adopts water wheel type spiral pendulum oar 4, and an oar axle 41 is arranged, and its two ends are cylindrical, and middle portion is an orthohexagonal.By the bearing support 44 at two ends, it is straddled on the cell body 1, as shown in Figure 4, the cover 43 of an orthohexagonal is arranged on the blade 42, its size, shape match with oar axle 41, and a plurality of blades 42 are sleeved on the oar axle 41 successively, and adjacent blade 42 keeps 60 degree angles.Oar axle 41 is installed conical gear 45, constitutes oar axle group, is installed on the cell body 1 by bearing support 44 together again, the structure that the top that is formed on cell body 1 is parallel, equidistantly arrange a plurality of pendulum oars 4.The conical gear 45 of each oar axle 41 and the conical gear engagement (referring to Fig. 1-1) that is installed on the drive shaft 46, drive shaft 46 is installed on the cell body 1 by a plurality of drive shaft bearings 47.

As shown in Figure 1, the lift 9 of bucket type of the present invention is installed in the path 10, by two groups of lift guide wheels 91, two head and the tail closed carry bucket wireline 93, and several carry bucket 92 and form, one group in two groups of guide wheels 91 is installed in 10 bottoms, path, in waste material well 8, another group is raised the top that machine support 94 is supported on path 10 outlets, article two, carrying bucket wireline 93 is enclosed within on the guide wheel 91, carry the bucket 92 along same direction be distributed on carry the bucket wireline 93 on, the axis of chapelet is consistent with the axis in path.

As shown in Figure 1, described belt sieve 6 is installed in the exit of the discharge port 5 and the chapelet 9 of cell body 1 respectively; Continue the respectively outlet of the scraper-trough conveyer 63 that catchments that is installed in belt sieve 6 of water treatment device A12 and water treatment device B13 is connected to the opening for feed 2 of cell body 1 again by circulating water pipeline 121.

As shown in Figure 3, belt sieve 6 is by 2 deflector rolls 61, the travelling belt 62 that has sieve aperture, chute 63 catchments, belt sieve support 66 is formed, and two deflector rolls 61 are contained in respectively on two deflector roll axle sleeves 64 on the chute 63 that catchments, and the travelling belt 62 that has sieve aperture is enclosed within on the deflector roll 61 with suitable tension force, the catchment top of chute 63 and travelling belt 62 has disposed a recovering hopper 65, prevents to drop on the material landing from the side on the travelling belt 62.Simultaneously, the belt sieve is supported on the cell body 1 by support 66, and is directly installed on the concrete brace table 67; The principle that supports is such: belt sieve 6 has two outlets, and one is the outlet of belt sieve 6 solidss that go out, and one is to catchment the water out of chute 63, and the solids outlet is high, and water out is low.

Principle of work of the present invention: in cell body 1, be full of water earlier, the paper pulp waste residue that former process was handled enters cell body 1 from opening for feed 2, enter and comprising the slightly big plastic pvc of proportion in the paper pulp waste residue of cell body 1 than water, the paper fiber that former process is residual, yarn fiber, slightly be lighter than the plastics PP of water with proportion, OPP, PE etc., this be the plastics that reclaim (at this moment they all the group of stirring is together, and swim in waterborne), enter cell body 1 afterwards for to facilitate the floating matter of the group of stirring to open dispersion, the present invention has utilized water wheel type spiral pendulum oar 4 floating matter that constantly strikes waters from the inlet end to the exit end, they are scattered, the purpose of using pendulum oar 4 is in order to strengthen the tearing effect in patting suspended substance, its blade 42 is patted on the floating matter under the driving of driving mechanism by turns, because blade 42 is narrower, when patting on the floating matter, it only gets to the part of floating matter, a part of getting to is pressed in the water, a part of not getting to floats on waterborne, the resistance of water makes to produce between these two portions tears effect, thereby further impels the floating matter of the group of stirring to scatter.Along with floating matter constantly scatters, under the effect of gravity, PVC, yarn fiber, the paper fiber slowly sinks to bottom land, and whole beating and precipitation process are carried out in the distance of discharge port 5 continuously at the feeding mouth 2 of cell body 1.Blade 42 also constantly promotes floating matter and moves to discharge port, makes operation smooth and easy.

The section of described cell body 1 narrows down near trench bottom the time gradually, and form a material collecting tank 7 that width is narrower, throw out is just automatically collected in the material collecting tank 7 of cell body 1 like this, effective transport section of scraper conveyer 3 is installed in the bottom land of material collecting tank simultaneously, under the driving of driving mechanism, throw out is constantly pushed the waste material well 8 of material collecting tank 7 ends, continuously the throw out in the waste material well 8 10 is discharged from the path once more by lift 9.

That float out from discharge port 5 is the extraordinary PP of separation degree, OPP, PE, through the filtration of belt sieve A 6, from the water that discharge port 5 is gushed out, chute 63 enters water treatment device A12 from catchmenting, low SS index water after the processing returns opening for feed 2 through circulating water pipeline 121.

The high pollution water that from the waste material that chapelet is discharged, also contains a large amount of cell bodies 1 bottom, filtration through belt sieve B11, solid expense material is discharged from, and high pollution water enters water treatment device B13 from the chute that catchments, and treated low SS index water returns opening for feed 2 through circulating water pipeline 121 again.

Claims

1. single-stage horizontal floatation cell, it is characterized in that: comprise cell body (1), scraper conveyer (3), spiral pendulum oar (4), belt sieve, water treatment device, lift (9), wherein cell body (1) is a structure wide at the top and narrow at the bottom, two ends are provided with opening for feed (2), discharge port (5), in its bottom material collecting tank (7) is arranged, to the end of discharge port (5) a waste material well (8) is set in material collecting tank (7); Be installed together with lift (9) in the path (10) that waste material well (8) is provided with by oblique upper; A plurality of spirals pendulum oars (4) be the water wheel type structure, and are parallel, equidistantly be arranged in the top of cell body (1), and scraper conveyer (3) passes cell body (1) bottom part ring above water wheel type spiral pendulum oar (4), is closing structure; Belt sieve (6) is set in the exit of discharge port (5) and chapelet (9) respectively, is connected to water treatment device separately.

2. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described waste material well (8) bottom is lower than the bottom of material collecting tank (7).

3. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described scraper conveyer (3) is for to guide two groups of wireline (35) structure by some guide wheels, a plurality of scraper plates (36) are housed on wireline (35) abreast, the guide wheel that is installed in the bottom of cell body (1) is positioned at material collecting tank (7), and the scraper plate (36) of the bottom of cell body (1) extends in the waste material well (8); The guide wheel that is installed in cell body (1) top is positioned at spiral pendulum oar (4) two ends.

4. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described spiral pendulum oar (4) has an oar axle (41), bearing support (44) by two ends straddles it on cell body (1), and a plurality of blades (42) are sleeved on oar axle (41) by cover (43).

5. according to the described single-stage horizontal floatation cell of claim 4, it is characterized in that: described oar axle (41) two ends are cylindrical, and middle portion is an orthohexagonal.

6. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described lift (9) is the bucket type structure, be installed in the path (10), by two groups of lift guide wheels (91), article two, head and the tail are closed carries bucket wireline (93), and several carry bucket (92) composition, one group in two groups of guide wheels (91) is installed in bottom, path (10), in waste material well (8), another group is raised the top that machine support (94) is supported on path (10) outlet, article two, carrying bucket wireline (93) is enclosed within on the guide wheel (91), carry bucket (92) and be distributed on along same direction and carry on bucket wireline (93), its axis is consistent with the axis in path.

7. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described belt sieve (6) is by two deflector rolls (61), the travelling belt (62) that has sieve aperture, chute (63) catchments, belt sieve support (66) is formed, two deflector rolls (61) are contained in respectively on two deflector roll axle sleeves (64) on the chute that catchments (63), travelling belt (62) is enclosed within on the deflector roll (61), the catchment top of chute (63) and travelling belt (62) has disposed a recovering hopper (65), simultaneously, the belt sieve is supported on the cell body (1) by support (66), and is directly installed on the concrete brace table (67).

8. according to the described single-stage horizontal floatation cell of claim 7, it is characterized in that: the chute that catchments (63) is a water out, and the direction of travel of travelling belt (62) is the outlet of solids, and the solids outlet is higher than water out.

9. according to the described single-stage horizontal floatation cell of claim 1, it is characterized in that: described water treatment device continues respectively and is installed in the outlet that belt sieves the scraper-trough conveyer that catchments (63) of (6), and is connected to the opening for feed (2) of cell body (1) by circulating water pipeline (121).