CN103866747B - Slim ultra-fine rotary grate trash rake - Google Patents

Slim ultra-fine rotary grate trash rake Download PDF

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Publication number
CN103866747B
CN103866747B CN201410125181.0A CN201410125181A CN103866747B CN 103866747 B CN103866747 B CN 103866747B CN 201410125181 A CN201410125181 A CN 201410125181A CN 103866747 B CN103866747 B CN 103866747B
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China
Prior art keywords
filter plate
trash rake
composite member
rotary grate
chain
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CN201410125181.0A
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CN103866747A (en
Inventor
尹志强
荣杰
钱登
尹曙辉
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China Energy Saving Zhaosheng Environmental Protection Co., Ltd.
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JIANGSU ZHAOSHENG ENVIRONMENTAL PROTECTION GROUP CO Ltd
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Abstract

The invention discloses a kind of slim ultra-fine rotary grate trash rake, be arranged in water channel rack inclining, between two chains of left and right, filter plate is installed, drive motors drives drive sprocket, turned round along track by the left and right two each filter plate of chain-driving, dirt is promoted to upper rack from the upstream face of water channel and carries out falling slag, the width of described filter plate is the length of at least two chain link plates.The present invention utilizes open slot to moving forward and backward of compensating that chain link produces when turning round, thus solves the main bugbear that fine pith chain is applied to rotary grate trash rake.The sprocket diameter that fine pith chain is corresponding can significantly reduce, and the thickness of trash rake is obviously thinning, not only directly reduces manufacturing cost, and the height of baffle plate bottom water channel reduces, and trash rake effective filtration area is more, and filter efficiency is higher.

Description

Slim ultra-fine rotary grate trash rake
Technical field
The present invention relates to field of environment protection equipment, especially a kind of slim ultra-fine rotary grate trash rake.
Background technology
Rotary grate trash rake is widely used in the intake of the facilities such as Wastewater Treatment Plant, drinking water intake, large hydropower station, lake, river comprehensive administration project, rainwater water drainage and sewage lifting pump station, water source intake floating thing and deposit are salvaged by screen pack part and are lifted out the water surface by this equipment, are poured in dirt hopper when screen pack part rotates and turns to top by dirt; Water channel current are then by flowing to water purification region, rear portion after grid filtration.The equipment disclosed in patent of invention " 201110192178.7---is counter drags for formula grilling trash remover " of the applicant as shown in Figure 1, this equipment was arranged in water channel road with inclination alpha=60 ~ 80 degree larger with horizontal plane, filter plates hole is larger, diameter is 2 ~ 12mm, is applicable to the filtration occasion that process impurity diameter is comparatively large, the water surface is higher.If filter mesh is reduced, filter effect must improve, but can increase because of filtration resistance simultaneously, and water amount can reduce, therefore equipment is needed to set level, as shown in Figure 2, to be arranged in water channel road with the less inclination alpha of horizontal plane as 20 ~ 60 degree, the screen area now contacted with the water surface increased a lot, effectively improve filter area, with reference to Fig. 1 Fig. 2, filter area can be increased to S2 from S1, compensate for the water amount because of filter opening reduction impact.In a few thing occasion, if need to adopt filter opening diameter to be the ultra-fine grid of 0.01 ~ 2mm, then equipment must be obliquely installed with little angle [alpha] as far as possible.
The filter plate of rotary grate trash rake is arranged on the middle part between the chain of both sides, and chain, under drive sprocket drives, drives filter plate revolution.Usually adopt the chain of coarse pitch in existing equipment, pitch is about 200 ~ 300mm, and the width of filter plate is equal with chain link plate length, and namely filter plate is equal with the number of chain link, and filter plate like this is easy to realize revolution at the top and bottom of equipment.The off-gauge coarse pitch of chain strip adoption, revolution sprocket wheel also needs the nonstandard sprocket wheel being customized to large chain link, and processing cost is comparatively large, needs to go to produce accessory separately during repair and replacement again, complicated trouble.And because pitch is large and nonstandard production, therefore fit tolerance is very large, chain rocks very large when revolution, turn round unstable and easily take off chain chain jamming.
Because sprocket diameter is large, therefore whole equipment is thicker at thickness direction, as shown in Figure 2, the thickness t2 of equipment is generally 600 ~ 800mm, because filter plate when device bottom is turned round does not participate in filtration, the height of baffle plate H2 thus bottom water channel also increases than H1, result in the reduction of discharge area, especially for the water channel that the water surface is lower, effective water amount significantly reduces.
In real work, because the filter screen of ultra-fine grid is very thin, impact resistance is poor, is easier to breakage, and thus maintain and replace is comparatively frequent, and existing trash rake structure is difficult to quickly dismantled and changes.And existing trash rake generally adopts the slag removal tools such as hairbrush to clean filter screen wire side, for ultra-fine filter screen, hairbrush bristle is difficult to enter mesh, and thus scarfing cinder effect is undesirable.
Summary of the invention
The applicant is larger for above-mentioned existing grilling trash remover pitch, device thickness is thicker, chain and the nonstandard production of sprocket wheel, the high and fluctuation of service of cost, after adopting fine fack simultaneously, equipment needs small inclination to arrange, cause the shortcomings such as water amount reduction, a kind of slim ultra-fine rotary grate trash rake rational in infrastructure is provided, thus standard chain can be adopted, stripping apparatus thickness, realizes large water amount under guarantee filter effect prerequisite.
The technical solution adopted in the present invention is as follows:
A kind of slim ultra-fine rotary grate trash rake, be arranged in water channel rack inclining, between two chains of left and right, filter plate is installed, drive motors drives drive sprocket, turned round along track by the left and right two each filter plate of chain-driving, dirt is promoted to upper rack from the upstream face of water channel and carries out falling slag, the width of described filter plate is the length of at least two chain link plates.
Further improvement as technique scheme: described filter plate is made up of the filter screen of sheet frame and surface coverage thereof, the side of sheet frame has former and later two hole slots, and bearing pin is from being coupled together by two adjacent groups filter plate through the circular hole of the centre bore of chain link, the open slot of last chain link and a rear chain link successively outside to inside; The centre bore of at least chain link in interval between adjacent two bearing pins.
The standard pitch of described chain strip adoption 28A ~ 48A.
Described open slot is arranged on independently to be expanded on sheet, and expansion sheet is fixed on the side of sheet frame.
Described filter screen is ultra-fine filter opening, and filter opening diameter is 0.01 ~ 2mm.
Described frame with horizontal plane comparatively small inclination α be arranged at obliquely in water channel, described inclination alpha=20 ~ 60 degree.
The slag cleaning device cleaned filter plate comprises the material-falling hopper of air knife composite member, bath composite member and bottom, and after bath composite member is positioned at air knife composite member, the nozzle of air knife composite member and bath composite member is all downwards just to the lower side filter plate after turning round.
Material-falling hopper is divided into slag-removing hopper by dividing plate and rinses bucket, and slag-removing hopper is positioned at below air knife composite member, rinses bucket and is positioned at below bath composite member, rinse bottom bucket and arrange discharging tube, and the anterior influent side of rotary grate trash rake is led in discharging tube outlet.
Described slag cleaning device further comprises water suction composite member, and water suction composite member is arranged on below the upper side filter plate before revolution, and for the uncovered air intake suitable with filter plate length dimension inhales box, opening, towards filter plate, utilizes blower fan to carry out suction and carries out negative pressure dehydration.
Beneficial effect of the present invention is as follows:
Filter plate width of the present invention equals multiple chain pitch sum, and utilizes open slot to moving forward and backward of compensating that chain link produces when turning round, thus solves the main bugbear that fine pith chain is applied to rotary grate trash rake.The sprocket diameter that fine pith chain is corresponding can significantly reduce, and the thickness of trash rake is obviously thinning, not only directly reduces manufacturing cost, and the height of baffle plate bottom water channel reduces, and trash rake effective filtration area is more, and filter efficiency is higher.
The present invention adopts sprocket wheel chain standard component, and greatly reduce the processing cost of non-standard, fit clearance is less, and turn to more steady, run more stable, decrease the rate of breakdown such as de-chain chain jamming occurs, the application life of component and complete machine is also longer.
The present invention utilize bearing pin be flexibly connected before and after filter plate, the setting of open slot can compensate deflection yoke during turning, and can install and remove easily, realizes changing fast and safeguarding.
Slag cleaning device of the present invention is the air knife composite member of series connection and bath composite member, corresponding bottom utilizes baffle for separating for slag-removing hopper and flushing bucket, high pressure wind-force and the filter opening of waterpower to ultra-fine grid filter screen is utilized to clean, overcome the problem that hairbrush bristle is difficult to enter ultra-fine filter opening, can effectively clean filtering surface.The solid residue of the overwhelming majority washes away at deadweight and air pressure and falls in slag-removing hopper, and the finely ground particles of small part reenters filtration under sluicing; The Separation of Solid and Liquid afterflush water yield greatly reduces, and reduces the load of filtration, also ensure that the quality of filtration.
Be provided with water suction composite member below the upper side filter plate of the present invention before revolution, utilize blower fan to carry out negative-pressure ward dehydration to filter screen and wire side grid slag, eliminate the circulating water in grid slag, reduce the working strength of rear road solid phase grid Slag treatment.
Accompanying drawing explanation
Fig. 1 is the setting angle schematic diagram of existing grilling trash remover.
Fig. 2 is the schematic diagram installed by existing grilling trash remover low-angle.
Fig. 3 is scheme of installation of the present invention.
Fig. 4 is front view of the present invention.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the partial enlarged drawing of Fig. 5.
Fig. 7 is the A portion enlarged drawing in Fig. 4.
Fig. 8 is the explosive view that filter plate of the present invention is installed.
Fig. 9 is the front view of slag cleaning device of the present invention.
In figure: 1, frame; 2, filter plate; 3, sprocket wheel; 4, absorb water composite member; 5, chain link; 6, air knife composite member; 7, bath composite member; 8, slag-removing hopper; 9, dividing plate; 10, bucket is rinsed; 11, discharging tube; 12, water channel; 13, watertight shutter; 14, high pressure positive blower; 15, drive motors; 20, sheet frame; 21, filter screen; 22, outlet pass; 23, circular hole; 24, bearing pin; 25, sheet is expanded; 26, open slot.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 3, slim ultra-fine rotary grate trash rake of the present invention is to be arranged in the water channel 12 compared with low water level H compared with small inclination α=20 ~ 60 degree, the sprocket wheel chain manufacture that the present invention adopts pitch less, the GB chain of 28A ~ 48A can be adopted, the present embodiment employing pitch P is the standard link 5 of 50.8mm, the diameter of sprocket wheel 3 is 290mm, and thus the thickness t3 of equipment can be reduced to 360mm.Because device thickness is thinning, thus at the bottom of canal, the height H 3 of watertight shutter 13 can effectively reduce, thus ensures, under low-angle mounting condition, to provide larger filter area S3.
As shown in Figures 4 to 6, frame 1 is arranged in water channel 12 obliquely, many group filter plates 2 are installed between left and right two chain be made up of standard link 5, filter plate 2 is made up of the filter screen 21 of sheet frame 20 and surface coverage thereof, filter screen 21 is ultra-fine filter opening, the present embodiment uses filter opening diameter to be 0.01 ~ 0.5mm, and filter opening diameter can be increased to 5mm or larger according to actual needs certainly.The drive sprocket 3 that drive motors 15 drives is arranged on frame 1 top, and drive sprocket 3 drives left and right two chain revolution, drives each filter plate 2 along track revolution, dirt is promoted to frame 1 top from the upstream face of water channel 12 and utilizes slag cleaning device to carry out falling slag.The bottom that frame 1 is positioned at water channel 12 is provided with watertight shutter 13 at upstream face.
As shown in Figure 8, the width of each group filter plate 2 of the present invention is the length of three chain links 5, and the plate face of sheet frame 20 offers some outlet passes 22, and filter screen 21 is coated on the plate face of sheet frame 20; The left and right side flange of sheet frame 20 has former and later two hole slots, and bearing pin 24 is from being coupled together by two adjacent groups filter plate 2 with the circular hole 23 of a rear chain link 5 through the centre bore of chain link 5, the open slot 26 of last chain link 5 successively outside to inside; Every three adjacent chain link 5 centre bores are provided with a bearing pin 24.As shown in Figure 7, the object arranging open slot 26 is moving forward and backward of allowing chain link 5 to produce when upper lower sprocket 3 place revolution.In the present embodiment, open slot 26 is arranged on independently to be expanded on sheet 25, and expansion sheet 25 is fixed on the flanging side face of sheet frame 20.
As shown in Figure 9, slag cleaning device of the present invention comprises at least one place air knife composite member 6 and bath composite member 7, and the material-falling hopper of bottom; The air knife composite member 6 be connected with high pressure positive blower 14 is arranged near drive sprocket 3, and bath is after composite member 7 is positioned at air knife composite member 6, and the nozzle of air knife composite member 6 and bath composite member 7 is all downwards just to the lower side filter plate 2 after turning round.Material-falling hopper is divided into slag-removing hopper 8 by dividing plate 9 and rinses bucket 10, slag-removing hopper 8 is positioned at below air knife composite member 6, rinse bucket 10 to be positioned at below bath composite member 7, rinse bottom bucket 10 and arrange discharging tube 11, the anterior influent side of rotary grate trash rake is led in discharging tube 11 outlet.Filter residue is usual with a large amount of moisture content after being suggested the water surface, owing to reclaiming the slag-removing hopper 8 of solid phase before the flushing bucket 10 reclaiming liquid phase, the filter residue that water content is high can increase the working strength of rear road solid phase grid Slag treatment, therefore water suction composite member 4 is provided with below the upper side filter plate 2 of the present invention before revolution, water suction composite member 4 is that the uncovered air intake suitable with filter plate 2 length dimension inhales box, blower fan is utilized to aspirate, to the dehydration of grid slag on filter plate 2 and wire side in the lump negative pressure, to remove the circulating water in grid slag.
During real work, as shown in Figure 4, drive motors 15 drives drive sprocket 3 to rotate, and drive sprocket 3 drives left and right two chain revolution, drives each filter plate 2 along track revolution, dirt is promoted to frame 1 top from the upstream face of water channel 12 and carries out falling slag.First utilize water suction composite member 4 pairs of grid slags to carry out negative pressure dehydration, filter plate 2 is when turning round reverse through drive sprocket 3, and plate face grid slag falls under gravity into slag-removing hopper 8.Plate after revolution faces down, and through the gases at high pressure Jet with downward flow direction of air knife composite member 6, the dirt of filter screen 21 remained on surface is blown down to be fallen in slag-removing hopper 8.Then filter plate 2 moves on through bath composite member 7, bath composite member 7 utilizes the filter opening of high-pressure injection current to filter screen 21 to spray, fallen into together with flushing water by entrapped contaminants in the filter opening that sweeps away and rinse bucket 10, be expelled to the anterior influent side of rotary grate trash rake by discharging tube 11, flushing water is filtered by trash rake again.
More than describing is explanation of the invention, and be not the restriction to invention, when without prejudice to spirit of the present invention, the present invention can do any type of amendment.

Claims (8)

1. a slim ultra-fine rotary grate trash rake, frame (1) is arranged in water channel (12) obliquely, between two chains of left and right, filter plate (2) is installed, drive motors (15) drives drive sprocket (3), turned round along track by each filter plate of left and right two chain-driving (2), dirt is promoted to frame (1) top from the upstream face of water channel (12) and carries out falling slag, it is characterized in that: the width of described filter plate (2) is the length of at least two chain link plates (5); Described filter plate (2) is made up of the filter screen (21) of sheet frame (20) and surface coverage thereof, have circular hole (23) and open slot (26) before and after the side of sheet frame (20), bearing pin (24) from outside to inside successively through chain link (5) centre bore, be positioned at last chain link (5) position sheet frame (20) lateral opening groove (26) be positioned at after sheet frame (20) side circular hole (23) of a chain link (5) position two adjacent groups filter plate (2) is coupled together; The centre bore of at least chain link (5) in interval between adjacent two bearing pins (24).
2. according to slim ultra-fine rotary grate trash rake according to claim 1, it is characterized in that: the standard pitch of described chain strip adoption 28A ~ 48A.
3. according to slim ultra-fine rotary grate trash rake according to claim 1, it is characterized in that: described open slot (26) is arranged on independently to be expanded on sheet (25), expansion sheet (25) is fixed on the side of sheet frame (20).
4. according to slim ultra-fine rotary grate trash rake according to claim 1, it is characterized in that: described filter screen (21) is ultra-fine filter opening, and filter opening diameter is 0.01 ~ 2mm.
5., according to slim ultra-fine rotary grate trash rake according to claim 1, it is characterized in that: described frame (1) with horizontal plane comparatively small inclination α be arranged in water channel (12) obliquely, described inclination alpha=20 ~ 60 degree.
6. according to slim ultra-fine rotary grate trash rake according to claim 1, it is characterized in that: the slag cleaning device cleaned filter plate (2) comprises air knife composite member (6), the material-falling hopper of wash by water composite member (7) and bottom, bath composite member is after (7) be positioned at air knife composite member (6), and the nozzle of air knife composite member (6) and bath composite member (7) is all downwards just to the lower side filter plate (2) after turning round.
7. according to slim ultra-fine rotary grate trash rake according to claim 6, it is characterized in that: material-falling hopper is divided into slag-removing hopper (8) by dividing plate (9) and rinses bucket (10), slag-removing hopper (8) is positioned at air knife composite member (6) below, rinse bucket (10) and be positioned at bath composite member (7) below, rinse bucket (10) bottom and arrange discharging tube (11), the anterior influent side of rotary grate trash rake is led in discharging tube (11) outlet.
8. according to slim ultra-fine rotary grate trash rake according to claim 6, it is characterized in that: described slag cleaning device further comprises water suction composite member (4), water suction composite member (4) is arranged on upper side filter plate (2) below before revolution, for the uncovered air intake suitable with filter plate (2) length dimension inhales box, opening, towards filter plate (2), utilizes blower fan to carry out suction and carries out negative pressure dehydration.
CN201410125181.0A 2014-03-31 2014-03-31 Slim ultra-fine rotary grate trash rake Active CN103866747B (en)

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CN103866747B true CN103866747B (en) 2016-03-02

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284257A (en) * 2015-06-05 2017-01-04 江苏立业环境科技有限公司 A kind of swinging grilling trash remover
CN114515462B (en) * 2022-03-16 2022-12-06 徐州鑫业达环保科技有限公司 High-efficient gyration grid check de-dirt machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201441A1 (en) * 1982-01-19 1983-09-08 Maschinenfabrik Hellmut Geiger Gmbh & Co Kg, 7500 Karlsruhe Screen cleaning installation with fish-protecting cleaners
CN2342864Y (en) * 1998-09-03 1999-10-13 周震球 Rotary guide wheel device for rotary grid dirt cleaner
CN1433336A (en) * 2000-02-03 2003-07-30 萨尔斯内斯过滤器有限公司 Cleaning device for waste water
CN201186182Y (en) * 2008-05-03 2009-01-28 杨运月 Bottle washing waste water filter device
CN102600655A (en) * 2011-12-19 2012-07-25 江苏通用环保集团有限公司 Rotary network chain type grid cleaner
CN102887553A (en) * 2012-09-19 2013-01-23 南京蓝深制泵(集团)股份有限公司 Rotary filter screen type bar screen cleaner
CN203782668U (en) * 2014-03-31 2014-08-20 江苏兆盛环保集团有限公司 Thin type ultra-fine rotary grating cleaning machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201441A1 (en) * 1982-01-19 1983-09-08 Maschinenfabrik Hellmut Geiger Gmbh & Co Kg, 7500 Karlsruhe Screen cleaning installation with fish-protecting cleaners
CN2342864Y (en) * 1998-09-03 1999-10-13 周震球 Rotary guide wheel device for rotary grid dirt cleaner
CN1433336A (en) * 2000-02-03 2003-07-30 萨尔斯内斯过滤器有限公司 Cleaning device for waste water
CN201186182Y (en) * 2008-05-03 2009-01-28 杨运月 Bottle washing waste water filter device
CN102600655A (en) * 2011-12-19 2012-07-25 江苏通用环保集团有限公司 Rotary network chain type grid cleaner
CN102887553A (en) * 2012-09-19 2013-01-23 南京蓝深制泵(集团)股份有限公司 Rotary filter screen type bar screen cleaner
CN203782668U (en) * 2014-03-31 2014-08-20 江苏兆盛环保集团有限公司 Thin type ultra-fine rotary grating cleaning machine

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Address after: 214261 Jiangsu city of Wuxi province Yixing Zhoutie Town Zhu Xi Industrial Park prosperous road No. 2

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