CN202785934U - Volute sludge dewaterer - Google Patents
Volute sludge dewaterer Download PDFInfo
- Publication number
- CN202785934U CN202785934U CN 201220422428 CN201220422428U CN202785934U CN 202785934 U CN202785934 U CN 202785934U CN 201220422428 CN201220422428 CN 201220422428 CN 201220422428 U CN201220422428 U CN 201220422428U CN 202785934 U CN202785934 U CN 202785934U
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- CN
- China
- Prior art keywords
- screw shaft
- spiral shaft
- spiral shell
- sludge dewatering
- dewatering equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a volute sludge dewaterer. The volute sludge dewaterer comprises a casing and further comprises annular fixed plates, annular movable plates, a spiral shaft, a sludge feed tank and a sludge discharge tank which are arranged in the casing; the annular fixed plate and the annular movable plates are arranged at intervals to form a cage-shaped structure; the spiral shaft penetrates through the centers of each fixed plate and each movable plate; the sludge feed tank and the sludge discharge tank are arranged on the left side and the right side of the spiral shaft respectively; the screw pitches of spiral slices on the spiral shaft are gradually narrowing from the sludge feed end to the sludge discharge end in the axis direction; and a wear layer is sprayed to the surface of the spiral shaft in a thermal spraying way. By spraying the wear layer to the surface of the spiral shaft in a thermal spraying way, the wear resisting property of the spiral shaft is greatly improved, abrasion to the spiral slices of the spiral shaft by the movable plates can be effectively reduced during operation of equipment, and the effect that the service life of the spiral shaft can reach more than 50000 hours can be guaranteed.
Description
Technical field
The utility model relates to a kind of device for dehydrating sladge waste technical field of solid-liquid separation, particularly a kind of folded spiral shell formula sludge dewatering equipment.
Background technology
The folded spiral shell formula sludge dewatering equipment of prior art can be widely used in following field: the organic sludge that produces in the wastewater treatment process such as (1) Wastewater from Pig Farm, food processing wastewater; (2) electroplating wastewater, dyeing waste water contains machining oil waste water, the inorganic mud that produces in the wastewater treatment process such as coating waste-water; (3) from the processing objects such as vegetables residue, pericarp, swill, isolate liquid.Rely on the water extracter of this form, revolve motion by turning of screw, portable plate and retaining plate carry out relative movement, clean simultaneously the space of filter house, prevent from stopping up.
Such sludge dewatering equipment filters body and is comprised of screw shaft, retaining plate, portable plate etc.Portable plate directly carries on the blade of screw shaft, does off-centre and move about under the driving of screw shaft.Because portable plate directly contacts with screw shaft, and do relative motion, friction between the two is inevitable, in or the situation that density is larger higher in sludge concentration, the blade of screw shaft and the inner ring of shifting ring can continue wearing and tearing even form recess, have a strong impact on processing power and the dehydration quality of water extracter, the continuous operation life of screw shaft is only about 5000 hours.
The utility model content
The technical problems to be solved in the utility model is: in order to overcome the problems such as screw shaft blade serious wear in the prior art, screw shaft weak point in work-ing life, provide a kind of folded spiral shell formula sludge dewatering equipment.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of folded spiral shell formula sludge dewatering equipment, have the portable plate, screw shaft of the retaining plate that is provided with ring-type in shell, the shell, ring-type, to mud box and spoil disposal case, the retaining plate of ring-type and the portable plate of ring-type are spaced the composition cage structure, screw shaft is through the circle centre position of each retaining plate and portable plate, arrange respectively about screw shaft to mud box and spoil disposal case, blade pitch on the screw shaft is narrowed down to the spoil disposal end by mud inlet end gradually along axis direction, and the thermal spraying on surface of screw shaft has one deck wearing layer.
Described wearing layer is carbine abrasion-proof layer or Ni-based powder wearing layer.
Described carbine abrasion-proof layer thickness is between 0.25mm-1mm.
Described Ni-based powder wearing layer thickness is between 0.5mm-2mm.
Described screw shaft surface carbine abrasion-proof layer is the interior zone of coverage distance blade outward flange 10mm only, or it is whole to cover whole screw shaft surface.
The Ni-based powder wearing layer of described screw shaft surface is the interior zone of coverage distance blade outward flange 10mm only, or it is whole to cover whole screw shaft surface.
The beneficial effects of the utility model are: the axis body of screw shaft and blade adopt stainless steel to make, outer surface heat spraying abrasion-proof layer, greatly improved the wear resisting property of screw shaft, the wear resisting property of screw shaft is good, can effectively alleviate equipment when operation portable plate to the wearing and tearing of screw shaft blade, guarantee more than work-ing life to 50000 hour of screw shaft.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Now by reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, it is the fragmentary cross-sectional view of folded spiral shell formula sludge dehydration device, describe mainly for sludge dewatering, comprise shell 1, retaining plate 2, portable plate 3, screw shaft 4, flight 5, give mud box 6, spoil disposal case 7,3 one-tenth concentric shapes of several ring-type retaining plates 2 and ring-type portable plate in shell 1 internal arrangement space, screw shaft 4 is through the circle centre position of each retaining plate 2 and portable plate 3, is furnished with axial integrated flight 5 above the screw shaft 4, arrange to mud box 6 and spoil disposal case 7 about it, and at screw shaft 4 rightmost sides connection variable-frequency motor 8, whole dehydration body below arranges filtrate retrieving arrangement 9, and the thermal spraying on surface of screw shaft has one deck wearing layer.
The wearing layer of this screw shaft surface is carbine abrasion-proof layer or Ni-based powder wearing layer, the carbine abrasion-proof layer thickness is between 0.25mm-1mm, Ni-based powder wearing layer thickness is between 0.5mm-2mm, the wearing layer of screw shaft surface is the interior zone of coverage distance blade outward flange 10mm only, or it is whole to cover whole screw shaft surface.
The axis body of screw shaft and blade adopt stainless steel to make, and outside surface can adopt remelting processing to spray Ni-based powder wearing layer, and remelting processing and parent are metallurgical binding, and bonding strength is greater than 100Mpa, surface hardness HRC 〉=60 °, and the abrasion-proof corrosion-proof performance is good.
The implementation step that outside surface adopts remelting processing to spray Ni-based powder wearing layer can be:
1, behind the screw shaft welding production, polishing and the processing of sandblasting are done in the surface, and the decontamination of deoiling;
2, preheating (100 ℃ of blades);
3, descaling is processed in texturing;
4, pre-thermospray work powder (Ni-based powder is such as Ni55A), coating thickness is greater than 0.5mm; Insulation after the spray, and with normal temperature under check surface condition and dimensional requirement.
Claims (6)
1. folded spiral shell formula sludge dewatering equipment, have the portable plate, screw shaft of the retaining plate that is provided with ring-type in shell, the shell, ring-type, to mud box and spoil disposal case, the retaining plate of ring-type and the portable plate of ring-type are spaced the composition cage structure, screw shaft is through the circle centre position of each retaining plate and portable plate, arrange respectively about screw shaft to mud box and spoil disposal case, it is characterized in that: the blade pitch on the screw shaft is narrowed down to the spoil disposal end by mud inlet end gradually along axis direction, and the thermal spraying on surface of screw shaft has one deck wearing layer.
2. folded spiral shell formula sludge dewatering equipment according to claim 1, it is characterized in that: described wearing layer is carbine abrasion-proof layer or Ni-based powder wearing layer.
3. folded spiral shell formula sludge dewatering equipment according to claim 2, it is characterized in that: described carbine abrasion-proof layer thickness is between 0.25mm-1mm.
4. folded spiral shell formula sludge dewatering equipment according to claim 2, it is characterized in that: described Ni-based powder wearing layer thickness is between 0.5mm-2mm.
5. folded spiral shell formula sludge dewatering equipment according to claim 2 is characterized in that: described screw shaft surface carbine abrasion-proof layer is the zone in the coverage distance blade outward flange 10mm only, or it is whole to cover whole screw shaft surface.
6. folded spiral shell formula sludge dewatering equipment according to claim 2 is characterized in that: the Ni-based powder wearing layer of described screw shaft surface is the zone in the coverage distance blade outward flange 10mm only, or it is whole to cover whole screw shaft surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422428 CN202785934U (en) | 2012-08-23 | 2012-08-23 | Volute sludge dewaterer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422428 CN202785934U (en) | 2012-08-23 | 2012-08-23 | Volute sludge dewaterer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202785934U true CN202785934U (en) | 2013-03-13 |
Family
ID=47813240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220422428 Expired - Fee Related CN202785934U (en) | 2012-08-23 | 2012-08-23 | Volute sludge dewaterer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202785934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253842A (en) * | 2013-03-28 | 2013-08-21 | 上海同臣环保有限公司 | Sludge deep dewatering treatment system and process |
-
2012
- 2012-08-23 CN CN 201220422428 patent/CN202785934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253842A (en) * | 2013-03-28 | 2013-08-21 | 上海同臣环保有限公司 | Sludge deep dewatering treatment system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |