CN103803772A

CN103803772A - Stacked spiral sludge dewatering machine

Info

Publication number: CN103803772A
Application number: CN201210443333.2A
Authority: CN
Inventors: 陆小敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2014-05-21

Abstract

The invention discloses a stacked spiral sludge dewatering machine. According to the invention, a screw shaft 14 rotates under the driving of a speed reducer 20, and at the same time, sludge with high water content enters into the periphery of the screw shaft from a water inlet 15; under the action of an upper screw panel 13 on the rotating screw shaft 14, the sludge with high water content gradually advances to a sludge outlet and is extruded; water droplets in the sludge are extruded out through gaps located between every adjacent fixed filter disc 12 and movable filter disc 11, then the water droplets fall into a water collecting tank 18 in a bracket and are discharged out of the dewatering machine through a drainage outlet 16; the dewatered sludge with low water content is gradually compacted, continues to move forward and is discharged out of the dewatering machine through a sludge outlet 19; the movable filter discs 11 rotate with the screw shaft 14 under the action of a transmission mechanism, each of the movable filter discs 11 swings up and down between two adjacent fixed filter discs 12, and the sludge among the movable filter discs 11 and the fixed filter discs 12 are cleaned so as to allow sewage to smoothly flow out from the gaps; each movable filter disc 11 is an elliptical ring composed by two arched structures and is fixed on a driving shaft sleeve by a fixing clamp, and if the movable filter disc is damaged, it only needs to remove the fixing clamp 5 for replacement of the damaged movable filter disc, which enables the machine to be easier to maintain.

Description

Folded spiral shell formula sludge dewatering equipment

Technical field

The present invention relates to a kind of sludge dehydration device, refer more particularly to a kind of folded spiral shell formula sludge dewatering equipment.

Background technology

At present, in the improvement and processing of sewage, the Selection and Design of sludge dewatering equipment is extremely crucial, traditional sewage water extracter comprises plate and frame(type)filter press, belt filter press, centrifugal pressure filter etc., are exactly that filter cloth, strainer easily occur to stop up or damage but these pressure filter have an obvious deficiency, or energy consumption is large, complicated operation and affect the effect of mud off line in waste water control.In order to improve the effect of sewage sludge processing, many enterprises and technician thereof carry out a large amount of improvement and research to sewage dewatering unit, develop a kind of folded spiral shell formula sludge dewatering equipment, design concept is by set collar, ring moves about, pad, the formations such as screw shaft, screw shaft through set collar and move about ring in, and the annular space that moves about is placed on screw shaft, set collar and the ring that moves about fit together, form small filtration gap, sewage flows out from filter gap, when screw shaft rotates, drive is moved about to encircle and is moved about between set collar, can remove the mud granule filtering between gap, reach the object of automatic cleaning.Thereby traditional filter cloth and centrifugal filter type are replaced with the delicate filter bulk-mode of uniqueness.But, because flight moves about ring when move about in gap between set collar in drive, to move about and produce contact friction between ring and screw-blade, flight and the filter disc wearing and tearing of moving about are very severe.

For overcoming flight and the problem of the filter disc wearing and tearing of moving about, in Chinese patent database, " helix extrusion type sludge dehydrator " patent of invention (number of patent application is 200810162472.1) by name is disclosed, its technical scheme comprises support, water entering section, mud extraction portion, outlet part, screw shaft and the upper and lower spacing swing that can follow screw shaft by multiple annular dynamic filters by the drive of a drive motor mechanism and do relative support, and, spacing between two adjacent quiet filter discs is slightly larger than the thickness of dynamic filter and between quiet filter disc and dynamic filter, forms the gap of supplying water and passing through, water outlet is flowed out from the gap of filter disk assembly.The advantage of this technical scheme is to avoid the friction that contacts of dynamic filter and flight, greatly reduces the wearing and tearing of dynamic filter and flight.

In above-mentioned patent application and similarly technical scheme, still have weak point: one, dynamic filter must have a circular hole that can pass swing arm, because swing arm is subject to placing restrictions on of minimum deformation intensity, swing arm diameter is larger, circular hole on dynamic filter must meet penetrating of swing arm, relatively takes material so dynamic filter is made.Two, in use, dynamic filter wearing and tearing are larger, in the time changing dynamic filter, thousands of dynamic and static filter discs and screw shaft completely knocked down could need be changed.

After this in order to make more easy care of spiral sludge dewatering machine, the safe Environmental Protection Technology Co., Ltd in Taizhou has proposed the patent of invention (number of patent application 201010250371.7) of " easily-maintainable overlapping screwed sludge dewatering equipment " by name, its technical scheme comprises support, there is the screw shaft of spiral blade, drive motor that this screw shaft rotates and intussusception in the filter disk assembly of screw shaft periphery, by several, fan-shaped ring stator and the dynamic filter in the setting of axial direction due transpostion interval forms its filter disc, its stator and dynamic filter run through respectively on corresponding back shaft, in the time changing filter disc, only need extract back shaft out and just can change filter disc.But while changing dynamic filter in such scheme, still need to extract the respective support axle being applied on filter disc out, also need to disassemble thousands of filter discs, filter disc movement range in swing is less simultaneously, limited in one's ability from sludge scavenging, gap, fan-shaped filter disc joint, easily causes mud to leak outside, and affects treatment effect.

Summary of the invention

For the shortcoming of prior art, technical problem to be solved by this invention is to improve the friction of dynamic filter and spiral shaft vane, extends its work-ing life, facilitates dynamic filter dismounting and change, can more save the folded spiral shell formula sludge dewatering equipment of one of material simultaneously.

In order to address the above problem, the present invention proposes following technical scheme: a kind of folded spiral shell formula sludge dewatering equipment, comprise support, there is the screw shaft of helical lobed blade, drive motor and speed reducer that this screw shaft rotates and intussusception in the dynamic filter of screw shaft periphery and determine filter disk assembly, it is characterized in that, described dynamic filter forms an oval-shaped ring-type dynamic filter by retaining clip by two arc dynamic filters, the swing of its dynamic filter drives swinging bush to promote by dynamic filter swing axle, and realize the cleaning of mud between gap, dynamic filter relies on retaining clip that dynamic filter is fixed on swinging bush, its dynamic filter swing axle one end is inserted in the chute of eccentric disk, eccentric disk is fixed on screw shaft by flat key, screw shaft is in the time rotating, the rotation of drive eccentric disk, dynamic filter swing axle slides in eccentric disk chute, realize swinging up and down of dynamic filter swing axle, reach the object of removing mud between gap.Due to dynamic filter be by retaining clip, two arc dynamic filters to be stuck on swinging bush, when changing, only the screw of retaining clip need be backed out dynamic filter, unload retaining clip, retaining clip is step-by-step design, while changing the dynamic filter damaging, only need pull down corresponding retaining clip for the position of damaging dynamic filter, just can change the dynamic filter of damage; Because dynamic filter is bow-shaped structural, and do not have for through the circular hole of swing axle, more simple and compared with material saving in manufacturing processed.

Accompanying drawing explanation

Fig. 1 is embodiment of the present invention overall construction drawing;

Fig. 2 is the three-dimensional structure diagram of the major portion of the embodiment of the present invention, the parts such as the intensive filter disk assembly of reducing motor, most of support, mud outlet end pressing plate and part part are omitted, with more clearly display eccentric dish, dynamic filter swing axle, swinging bush, rocking arm, retaining clip, determine filter disc, dynamic filter, screw shaft, the structure of the parts such as back up pad and annexation;

Fig. 3 is the dynamic filter structural representation in the embodiment of the present invention;

Fig. 4 is annexation schematic diagram between dynamic filter swing axle, swinging bush, rocking arm and retaining clip in the embodiment of the present invention;

Fig. 5 is the eccentric disc schematic diagram in the embodiment of the present invention;

Fig. 6 is screw shaft in the embodiment of the present invention and the schematic diagram of screw-blade

Embodiment

Now by reference to the accompanying drawings and specific embodiment, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only instead shows the formation relevant with the present invention.

As shown in Fig. 1～Fig. 6, this folded spiral shell formula sludge dewatering equipment, includes support 17, water leg 18, mud mouth 19, step-down gear 20, water-in 15, water outlet 16, eccentric disk 1, eccentric disk chute 101, swing axle 2, rocking arm 3, swinging bush 4, retaining clip 5, retaining clip screw 6, supporting plate 7, rocking arm bolster 8, determines filter disc locating shaft 9, determines filter disc spacer ring 10, dynamic filter 11, determines filter disc 12, flight 13, screw shaft 14.

Described support 17 is provided with the back up pad 7 that polylith is arranged in parallel, in this enforcement, example is three, determine to be provided with and to determine filter disc spacer ring 10 between filter disc 12, be fixed in back up pad 7 by determining filter disc locating shaft 9, form a rigidity filtering unit, determine to be provided with screw shaft 14 in filter disc and dynamic filter group, screw shaft periphery has flight 13, at close step-down gear 20 ends, be fixed with eccentric disk 1 by flat key, in the chute 101 of eccentric disk 1, be inserted with moving plate swing axle 2, two ends of dynamic filter swing axle 2 are fixed with rocking arm 3, the other end empty set of rocking arm 3 is on rocking arm bolster 8, rocking arm bolster 8 is fixed in back up pad 7, outside dynamic filter swing axle 2, sliding sleeve has swinging bush 4, retaining clip 5 is fixed on dynamic filter swinging bush 4 by retaining clip screw 6, screw shaft 14 is driven by step-down gear 20, in the process of rotating at screw shaft, eccentric disk 1 rotates with screw shaft 14, eccentric disk chute 101, promote dynamic filter swing axle and produce upper and lower spacing swing, dynamic filter swing axle two ends are fixed rocking arm 3, rocking arm bolster 8 is slidably matched in the other end axis hole of rocking arm, rocking arm bolster 8 is fixed on supporting plate 7, thereby dynamic filter swing axle 2 can only be swung up and down around rocking arm bolster 8, because dynamic filter swing axle 2 and rocking arm 3 are heavy keying fit, dynamic filter swing axle 2 is swinging up and down in process like this, force dynamic filter swing axle 2 to turn an angle, under the cooperation of the rotation of dynamic filter swing axle 2 and the other end rocking arm 3, realize synchronous the swinging up and down of dynamic filter swing axle 2 two ends, again by upper and lower two parallel to each other, the cooperation of the dynamic filter swing axle 2 that structure is identical, two dynamic filter swing axles 2 are synchronously swung up and down, drive dynamic filter swinging bush 4 by dynamic filter swing axle 2 again, promoting dynamic filter 11 moves up and down, clear up dynamic filter 11 and determine the mud between filter disc 12.Two determine 12 of filter discs determine filter disc spacer ring 10, its thickness is slightly larger than the thickness of dynamic filter 11, the sewage in mud flows into water leg 18 from the gap of determining between filter disc 12 and dynamic filter 11.

The principle of work of this folded spiral shell formula sludge dewatering equipment is as follows:

Screw shaft 14 rotates under the driving of step-down gear, meanwhile, water-containing sludge enters screw shaft periphery from water-in continually, on the screw shaft 14 of rotation under the effect of flight 13, advance to mud mouth step by step, high water-containing sludge is extruded, water droplet in mud is extruded from adjacent gap of determining between filter disc 12 and dynamic filter 11, fall into the water leg 18 of support, discharge outside water extracter by water port 16 again, and through dehydration after low water-containing sludge by being compacted, continue to push ahead, discharge outside water extracter by mudhole 19; And dynamic filter 11 is under the effect of transmission rig, along with the rotation of screw shaft 14, each dynamic filter 11 can swing up and down between two adjacent stators 12, and cleaning the dynamic filter 11 and determine mud between filter disc 12 makes sewage outflow smoothly from filter gap.

After dynamic filter damages, only need pull down the retaining clip coupling screw 6 being positioned on swinging bush 4, retaining clip 5 is unloaded, just can pull down dynamic filter 11, after renewing, dynamic filter 11 loads onto retaining clip 5, the retaining clip coupling screw 6 of screwing on.

Above-described is only the preferred embodiment of the present invention, should instead point out, for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, as eccentric disk being all set at screw shaft two ends, eccentric disk cam link mechanism replaces, retaining clip can jump ring replacement etc.These all belong to protection scope of the present invention.

Claims

1. a folded spiral shell formula sludge dewatering equipment, comprise support, there is the screw shaft of helical lobed blade, the motor and speed reducer that drives this screw shaft rotation and intussusception in the dynamic filter of screw shaft periphery and determine filter disk assembly, it is characterized in that, described dynamic filter forms an oval-shaped ring-type moving plate by retaining clip by two arc moving plates, the swing of its dynamic filter is promoted by dynamic filter swinging bush, the fixing retaining clip by step-by-step design of dynamic filter, dynamic filter is fixed on dynamic filter propeller shaft sleeve, and its dynamic filter swing axle one end is inserted in the chute of eccentric disk.

2. arc dynamic filter two ends according to claim 1 respectively have a lug, fix for retaining clip.

3. dynamic filter according to claim 1 is characterized in that its thickness is slightly less than adjacent gap of determining between filter disc.

4. dynamic filter according to claim 1 is characterized in that the long limit internal diameter of its ellipse and stator difference in internal diameters equal the distance that eccentric disk chute swings.

5. dynamic filter drive shaft according to claim 1, is characterized in that described dynamic filter swing axle and screw shaft keeping parallelism, and its two end respectively has a rocking arm.

6. dynamic filter swing axle according to claim 1, is characterized in that, what two symmetries paralleled is 180 degree settings.

7. dynamic filter swinging bush according to claim 1, is characterized in that, is connected by screw the retaining clip of fixing dynamic filter on described dynamic filter swinging bush.

8. retaining clip according to claim 1, is characterized in that being made up of the part of some sections of same structures.