CN101712524A - Spiral sludge dewatering equipment with collapsable shaft - Google Patents
Spiral sludge dewatering equipment with collapsable shaft Download PDFInfo
- Publication number
- CN101712524A CN101712524A CN200910259674A CN200910259674A CN101712524A CN 101712524 A CN101712524 A CN 101712524A CN 200910259674 A CN200910259674 A CN 200910259674A CN 200910259674 A CN200910259674 A CN 200910259674A CN 101712524 A CN101712524 A CN 101712524A
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- screw shaft
- sludge
- spoil disposal
- portable plate
- plate
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Abstract
The invention discloses a spiral sludge dewatering equipment with a collapsable shaft. The inside of a shell is provided with a plurality of annular fixed plates and annular movable plates which are mutually alternate and are concentric; a spiral shaft runs through the inside of each of the annular fixed plates and the annular movable plates to form a filtration body; a sludge feeding box and a sludge discharge box are arranged at both ends of the spiral shaft respectively so as to ensure that the sludge is dehydrated under the compression action of the filtration body and then enters the sludge discharge box; and a filtrate flows out from the gaps between the fixed plates and the movable plates during the operation. By designing that the screw pitch of the spiral shaft is gradually reduced and the diameter of the spiral shaft begins to be gradually increased at certain specific position along the direction of the sludge discharge box, and setting a lead angle to be between 13.5 and 14.5 DEG at the same time, the dehydration efficiency of the sludge is improved, the damage caused by the overlarge pressure on the movable plates during the treatment caused by the overlarge lead angle is also avoided, and the service life of the movable plates is prolonged.
Description
Technical field
The present invention relates to a kind of 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 process object such as vegetables residue, pericarp, swill, isolate liquid.Rely on the water extracter of this form, revolve motion by the commentaries on classics of screw, portable plate and retaining plate carry out relative movement, clean the space of filter house simultaneously, prevent to stop up.
Such sludge dewatering equipment, in order to improve the dewatering efficiency of mud, that just must reduce the water ratio of process object at dewatering period, and the water ratio of dewatering period is decreasing through enriching section.In order to reach this purpose, all the time, the lead angle that all will be positioned at the screw that filters the body enriching section is set at 8 °～9 °.So-called lead angle is the middle footpath unfolded circumferential line of screw thread and the angle of spiral-line.By lead angle numerical value is dwindled, the volume that filters body dewatering period zone also can narrow down, also just increase for being present in the process object pressure that filters body spoil disposal case like this, thus the dewatering efficiency of raising process object.But show according to practical experience, if the lead angle of screw is diminished, along with the wearing and tearing of the portable plate of the screw shaft effect of rotatablely moving will become quite remarkable, the work-ing life of the plate that also just takes in sail.
Summary of the invention
In order to overcome the problems referred to above, the invention provides a kind of folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft, the pitch of flight is reduced gradually along spoil disposal case direction, and screw shaft is from specific position, its diameter prolongs spoil disposal case direction and increases gradually, and lead angle is set in 13.5 °～14.5 °, can be when effectively improving sludge dewatering efficient, can reduce portable plate and retaining plate damage intensity again, prolong the portable plate life-span.
A kind of folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft, the filtration body that comprises shell, constitutes by retaining plate, portable plate and screw shaft, filtrate retrieving arrangement, give mud box and spoil disposal case, described enclosure is arranged in order several annular retaining plates, the configuration annular portable plate concentric and movable between the adjacent fixed plate with retaining plate, the body bottom is provided with the filtrate retrieving arrangement; Described screw shaft runs through the inside of retaining plate and portable plate, is separately positioned on the two ends of screw shaft for mud box and spoil disposal case; The pitch of flight diminishes gradually along spoil disposal case direction on the described screw shaft; Described screw shaft is from specific position, and its diameter increases gradually along spoil disposal case direction.
Described lead angle in the screw shaft part that increases along spoil disposal case direction diameter is 13.5 °～14.5 °.
Among the present invention, the increase of screw shaft specific position diameter, and the lead angle of this section screw shaft is set at 13.5 °～14.5 ° dewatering efficiencies that can improve mud, reduce the pressure that portable plate is subjected to, promptly the take in sail degree of wear of plate increases work-ing life of portable plate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the connection diagram of retaining plate and portable plate;
Fig. 3 is the structural representation of screw shaft and flight;
Fig. 4 is the stressed synoptic diagram of retaining plate and portable plate.
Embodiment
Below in conjunction with accompanying drawing folded spiral shell formula sludge dewatering equipment of the present invention is described in further detail.
Be illustrated in figure 1 as folded spiral shell formula sludge dewatering equipment structural representation of the present invention, a kind of folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft, comprise shell 11, by retaining plate 1, portable plate 2 and screw shaft 7 and the filtration body 3 that constitutes, filtrate retrieving arrangement 8, give mud box 5 and spoil disposal case 6, described shell 11 inside are arranged in order several annular retaining plates 1, the configuration annular portable plate 2 concentric and movable between the adjacent fixed plate 1 with retaining plate 1, filtration body 3 bottoms are provided with filtrate retrieving arrangement 8; Described screw shaft 7 runs through the inside of retaining plate 1 and portable plate 2, is separately positioned on the two ends of screw shaft 7 for mud box 5 and spoil disposal case 6; The pitch D of the flight 4 that is provided with on the described screw shaft 7 diminishes gradually along spoil disposal case 6 directions; Described screw shaft 7 is from specific position, and its diameter increases gradually along spoil disposal case 6 directions.
Be illustrated in figure 2 as the connection diagram of retaining plate and portable plate, retaining plate 1 and portable plate 2 have several, can increase and decrease as required, and retaining plate 1 are bigger than the internal diameter of portable plate 2.Gap between the retaining plate 1 is set to 1.5mm～3mm, and the gap between retaining plate 1 and the portable plate 2 is set to 0.1mm～1mm.Setting can be regulated according to the mud object of handling in this gap.Retaining plate 1 edge is provided with adjusts piece 9, wherein every adjustment piece 9 usefulness union levers 12 are fixedly connected, union lever 12 two ends are fixedly mounted on respectively on mud box 5 and the spoil disposal case 6, thereby play the fixedly effect of retaining plate 1 fixing whole filtration body 3, when making portable plate 2 activities, retaining plate 2 remains fixing.
Be illustrated in figure 3 as the structural representation of screw shaft and flight, screw shaft 7 in a certain certain location promptly along spoil disposal case 6 direction increasing diameter general goals, pitch D between the flight 4 diminishes gradually, and the lead angle of this section screw shaft part be 13.5～14.5 ° like this can more effective raising mud dehydration rate.
Wherein screw shaft 7 and flight 4 weld together, whole formation screw 13.In the enriching section 13A part as screw among Fig. 1, it is constant that the diameter of screw shaft 7 is maintained fixed numerical value; In the dewatering period 13B of screw part, the diameter of screw shaft 7 increases gradually.
In entire work process, be installed in to mud box 5 lateral variable-frequency motor 10 startings, at first drive screw shaft 7 and flight 4 rotations, by giving the supply mud of mud box 5, mud enters retaining plate 1 and portable plate 2 internal spaces, at enriching section 13A because the internal diameter of portable plate 2 is littler than the internal diameter of retaining plate 1, mud moves between retaining plate 1 to portable plate 2 generation pressure promotion portable plates 2 during rotation, and a part of moisture content flows out to filtrate retrieving arrangement 8 by portable plate 2 and 1 gap of retaining plate in moving process.
It is that screw shaft 7 diameters increase the zone that flight 4 continuation drive mud spirals move forward to dewatering period 13B.As Fig. 4 is the stressed synoptic diagram of retaining plate and portable plate, mud is owing to screw 13 rotatablely moves, shown in the direction of arrow E, transport, here, owing to be subjected to the turning effort of screw 13, portable plate 2 is when its radial direction is subjected to external force, the travel direction E place of mud also is subjected to the extruding of external force, if the lead angle of screw 13B is that very fractional value is talked about, portable plate 2 is subjected to such an extent that power that the mud travel direction is applied will increase from the screw 13 of rotation, and 2 pairs of adjacent retaining plates 1 of portable plate also can apply very big power F simultaneously.In this state, do compressional movement because portable plate 2 is subjected to the turning effort of screw 13 at its radial direction, at this moment, the pressure that is applied to portable plate 2 will be very big.Like this, the portable plate 2 that is subjected to screw 13 turning efforts wants in its radial direction motion, and institute's application of force also must increase, and the edge of the flight 4 of screw 13 will produce very big frictional force to the inner peripheral surface of portable plate 2.So just quicken the wearing and tearing of portable plate 2 inner peripheral surfaces, shortened the work-ing life of portable plate 2.The inner peripheral surface of while owing to the effect portable plate 2 of screw 13 will be disappeared gradually, thereby produces the chip of elongated shape.
The present invention is arranged on the screw shaft lead angle of this section 13B in 13.5～14.5 ° of scopes, and on whole section screw shaft 7, pitch D along flight 4 on spoil disposal case 6 directions diminishes gradually, so just make the dehydration space of mud in filtering body 3 diminish gradually, the force of compression of mud in filtering body 3 is just big more simultaneously, can effectively improve the efficient of dehydration.Under the situation of this high dewatering efficiency, the present invention is arranged on lead angle in 13.5～14.5 ° of scopes, has effectively reduced the frictional force that portable plate 2 is subjected to simultaneously, has reduced wearing and tearing and has prolonged its life-span.Through the dehydration of 13B section, the mud after the dehydration enters spoil disposal case 6 dischargers and carries out next step processing.
Screw shaft dewatering period 13A diameter is 50cm, is example with the municipal sludge, gets mud in the second pond, and selected lead angle is as shown in table 1, the rotating speed of other conditions such as screw shaft, adds its detected result such as table 1 under the identical situation such as dose.
Correlation data is as can be seen when dewatering period 13B lead angle is 14 ° in the analytical table 1, detecting and handling the back moisture percentage in sewage sludge is 76.8%, when lead angle is 8 °, when 10 ° and 12 °, it handles back moisture content of the cake scope from 75.4% to 76.1%, moisture content of the cake when being 14 ° with lead angle is more or less the same, but when lead angle is 16 °, when 18 ° and 20 °, it is 81.0%～83.2% that moisture content of the cake then begins to increase rapidly, therefore, the dewatering efficiency of sludge dewatering equipment is unaffected substantially when lead angle is 13.5 °～14.5 °, but the frictional force that can take in sail plate 2 and retaining plate 1 are subjected to promptly reduces wear, and prolongs its life-span.
Table 1:
| Numbering | The dewatering period lead angle | Screw shaft enriching section diameter (cm) | Moisture content of the cake |
| ??1 | ??8° | ??50 | ??75.4％ |
| ??2 | ??10° | ??50 | ??75.8％ |
| ??3 | ??12° | ??50 | ??76.1％ |
| ??4 | ??14° | ??50 | ??76.8％ |
| ??5 | ??16° | ??50 | ??81.0％ |
| ??6 | ??18° | ??50 | ??82.3％ |
| ??7 | ??20° | ??50 | ??83.2％ |
Among the present invention, be taken as 14 ° at dewatering period 13B lead angle in addition, under the identical situation of other above-mentioned condition, when the diameter of the diameter of dewatering period 13B and enriching section 13A was identical, when promptly the full section of screw shaft diameter was constant, the moisture percentage in sewage sludge that obtains at last was 84.2%; Then 76.8% in the last table during vary in diameter.Therefore when screw shaft dewatering period 13B diameter increases gradually, can improve the dewatering efficiency of mud.
Therefore, in 13.5 °～14.5 ° scopes, can play good complementary action by screw shaft Diameter Gradual Change and the lead angle of setting the gradual change part, both improve the dewatering efficiency of mud, the wearing and tearing of the plate that takes in sail again prolong work-ing life of device for dehydrating sladge waste.
Claims (3)
1. folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft, the filtration body that comprises shell, constitutes by retaining plate, portable plate and screw shaft, filtrate retrieving arrangement, give mud box and spoil disposal case, it is characterized in that, described enclosure is arranged in order several annular retaining plates, the configuration annular portable plate concentric and movable between the adjacent fixed plate with retaining plate, the body bottom is provided with the filtrate retrieving arrangement; Described screw shaft runs through the inside of retaining plate and portable plate, is separately positioned on the two ends of screw shaft for mud box and spoil disposal case; The pitch of flight diminishes gradually along spoil disposal case direction on the described screw shaft.
2. a kind of folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft as claimed in claim 1 is characterized in that described screw shaft is from specific position, and its diameter increases gradually along spoil disposal case direction.
3. a kind of folded spiral shell formula sludge dewatering equipment that adopts multidiameter shaft as claimed in claim 1 is characterized in that, described lead angle in the screw shaft part that increases along spoil disposal case direction diameter is 13.5 °～14.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259674A CN101712524A (en) | 2009-12-22 | 2009-12-22 | Spiral sludge dewatering equipment with collapsable shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259674A CN101712524A (en) | 2009-12-22 | 2009-12-22 | Spiral sludge dewatering equipment with collapsable shaft |
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| CN101712524A true CN101712524A (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910259674A Pending CN101712524A (en) | 2009-12-22 | 2009-12-22 | Spiral sludge dewatering equipment with collapsable shaft |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166442A (en) * | 2011-03-18 | 2011-08-31 | 陈学嘉 | Double-screw solid-liquid separator |
| CN102606204A (en) * | 2012-03-31 | 2012-07-25 | 苏国安 | Water sump clearing machine for mining |
| CN102603146A (en) * | 2012-03-06 | 2012-07-25 | 上海同臣环保科技有限公司 | Non-abrasion overlapped spiral type sludge dewatering machine |
| CN102730929A (en) * | 2011-04-14 | 2012-10-17 | 上海神工环保股份有限公司 | Separation structured mobile sludge processing device |
| CN103373799A (en) * | 2012-04-17 | 2013-10-30 | 泰州市蓝海环保科技有限公司 | Novel spiral shaft applicable to spiral sludge squeezing and dewatering machine |
| CN103712421A (en) * | 2013-12-10 | 2014-04-09 | 江苏纵横浓缩干燥设备有限公司 | Variable-diameter single-screw-shaft dehydrating device |
| WO2014181356A1 (en) * | 2013-05-09 | 2014-11-13 | Tega Industries Limited | Trommel assembly having a spiral assembly with decaying pitch |
| CN104496146A (en) * | 2014-11-21 | 2015-04-08 | 朱越 | Sludge dewatering machine |
| CN104988968A (en) * | 2015-05-14 | 2015-10-21 | 浙江工业职业技术学院 | A domestic wastewater filter and its filtering method |
| CN105130161A (en) * | 2015-09-11 | 2015-12-09 | 山东晨钟机械股份有限公司 | Sludge dewatering system |
| CN105601076A (en) * | 2015-09-18 | 2016-05-25 | 郑朝志 | Grid screw type solid-liquid separation device |
| CN105664566A (en) * | 2016-04-05 | 2016-06-15 | 梁付刚 | Active filter cartridge |
| CN105712605A (en) * | 2016-04-22 | 2016-06-29 | 上海同臣环保有限公司 | Novel stacked screw sludge dewatering machine and spiral shaft thereof |
| CN105712608A (en) * | 2016-04-29 | 2016-06-29 | 上海同臣环保有限公司 | Pectin dedicated volute sludge dehydrator and screw shaft thereof |
| CN105731762A (en) * | 2016-04-22 | 2016-07-06 | 上海同臣环保有限公司 | Skid-mounted type building mud treatment device and process |
| CN105906146A (en) * | 2016-05-19 | 2016-08-31 | 上海同臣环保有限公司 | New ectin wastewater treatment process and device |
| CN109422366A (en) * | 2017-08-17 | 2019-03-05 | 宜兴市至诚环保科技有限公司 | A kind of vehicular equipment for separating liquid from solid and its processing method |
| CN111777305A (en) * | 2020-07-06 | 2020-10-16 | 南京攀科乐环保技术有限公司 | Multistage extrusion sludge dewatering device |
| CN113480129A (en) * | 2021-07-26 | 2021-10-08 | 黄美值 | Sludge dewatering machine screw stacking body mechanism capable of reducing wear rate of screw shaft |
| CN117164203A (en) * | 2023-11-02 | 2023-12-05 | 江苏康泰环保装备有限公司 | Multi-mode-adjustment solid-liquid separation device and use method thereof |
| CN118579971A (en) * | 2024-08-06 | 2024-09-03 | 德州鑫鼎昊环保科技有限公司 | A wear-free self-driven tandem shaft sludge dewatering machine |
-
2009
- 2009-12-22 CN CN200910259674A patent/CN101712524A/en active Pending
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166442B (en) * | 2011-03-18 | 2015-03-25 | 陈学嘉 | Double-screw solid-liquid separator |
| CN102166442A (en) * | 2011-03-18 | 2011-08-31 | 陈学嘉 | Double-screw solid-liquid separator |
| CN102730929A (en) * | 2011-04-14 | 2012-10-17 | 上海神工环保股份有限公司 | Separation structured mobile sludge processing device |
| CN102603146A (en) * | 2012-03-06 | 2012-07-25 | 上海同臣环保科技有限公司 | Non-abrasion overlapped spiral type sludge dewatering machine |
| CN102606204A (en) * | 2012-03-31 | 2012-07-25 | 苏国安 | Water sump clearing machine for mining |
| CN103373799A (en) * | 2012-04-17 | 2013-10-30 | 泰州市蓝海环保科技有限公司 | Novel spiral shaft applicable to spiral sludge squeezing and dewatering machine |
| CN105579150A (en) * | 2013-05-09 | 2016-05-11 | 泰加工业有限公司 | Trommel screen assembly with decreasing pitch helical assembly |
| WO2014181356A1 (en) * | 2013-05-09 | 2014-11-13 | Tega Industries Limited | Trommel assembly having a spiral assembly with decaying pitch |
| CN103712421A (en) * | 2013-12-10 | 2014-04-09 | 江苏纵横浓缩干燥设备有限公司 | Variable-diameter single-screw-shaft dehydrating device |
| CN103712421B (en) * | 2013-12-10 | 2015-05-20 | 江苏纵横浓缩干燥设备有限公司 | Variable-diameter single-screw-shaft dehydrating device |
| CN104496146A (en) * | 2014-11-21 | 2015-04-08 | 朱越 | Sludge dewatering machine |
| CN104988968A (en) * | 2015-05-14 | 2015-10-21 | 浙江工业职业技术学院 | A domestic wastewater filter and its filtering method |
| CN104988968B (en) * | 2015-05-14 | 2017-05-17 | 浙江工业职业技术学院 | Domestic wastewater filter and filtering method thereof |
| CN105130161A (en) * | 2015-09-11 | 2015-12-09 | 山东晨钟机械股份有限公司 | Sludge dewatering system |
| CN105130161B (en) * | 2015-09-11 | 2018-10-19 | 山东晨钟机械股份有限公司 | Sludge dewatering system |
| CN105601076A (en) * | 2015-09-18 | 2016-05-25 | 郑朝志 | Grid screw type solid-liquid separation device |
| CN105601076B (en) * | 2015-09-18 | 2018-02-16 | 郑朝志 | A kind of grid spiral shell formula equipment for separating liquid from solid |
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| CN105664566B (en) * | 2016-04-05 | 2017-11-17 | 梁付刚 | Active filter cylinder |
| CN105712605A (en) * | 2016-04-22 | 2016-06-29 | 上海同臣环保有限公司 | Novel stacked screw sludge dewatering machine and spiral shaft thereof |
| CN105731762A (en) * | 2016-04-22 | 2016-07-06 | 上海同臣环保有限公司 | Skid-mounted type building mud treatment device and process |
| CN105731762B (en) * | 2016-04-22 | 2019-01-25 | 上海同臣环保有限公司 | A kind of skid-mounted type construction slurry processing unit and treatment process |
| CN105712605B (en) * | 2016-04-22 | 2018-06-08 | 上海同臣环保有限公司 | A kind of novel Stacked sludge dewatering machine and its helical axis |
| CN105712608A (en) * | 2016-04-29 | 2016-06-29 | 上海同臣环保有限公司 | Pectin dedicated volute sludge dehydrator and screw shaft thereof |
| CN105906146B (en) * | 2016-05-19 | 2018-12-14 | 上海同臣环保有限公司 | A kind of pectin wastewater New Process for Treatment and processing unit |
| CN105906146A (en) * | 2016-05-19 | 2016-08-31 | 上海同臣环保有限公司 | New ectin wastewater treatment process and device |
| CN109422366A (en) * | 2017-08-17 | 2019-03-05 | 宜兴市至诚环保科技有限公司 | A kind of vehicular equipment for separating liquid from solid and its processing method |
| CN111777305A (en) * | 2020-07-06 | 2020-10-16 | 南京攀科乐环保技术有限公司 | Multistage extrusion sludge dewatering device |
| CN113480129A (en) * | 2021-07-26 | 2021-10-08 | 黄美值 | Sludge dewatering machine screw stacking body mechanism capable of reducing wear rate of screw shaft |
| CN117164203A (en) * | 2023-11-02 | 2023-12-05 | 江苏康泰环保装备有限公司 | Multi-mode-adjustment solid-liquid separation device and use method thereof |
| CN117164203B (en) * | 2023-11-02 | 2023-12-29 | 江苏康泰环保装备有限公司 | Multi-mode-adjustment solid-liquid separation device and use method thereof |
| CN118579971A (en) * | 2024-08-06 | 2024-09-03 | 德州鑫鼎昊环保科技有限公司 | A wear-free self-driven tandem shaft sludge dewatering machine |
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Open date: 20100526 |