CN105712608A - Pectin dedicated volute sludge dehydrator and screw shaft thereof - Google Patents
Pectin dedicated volute sludge dehydrator and screw shaft thereof Download PDFInfo
- Publication number
- CN105712608A CN105712608A CN201610283812.0A CN201610283812A CN105712608A CN 105712608 A CN105712608 A CN 105712608A CN 201610283812 A CN201610283812 A CN 201610283812A CN 105712608 A CN105712608 A CN 105712608A
- Authority
- CN
- China
- Prior art keywords
- pectin
- retainer ring
- mud
- helical axis
- sludge dewatering
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
Abstract
The invention discloses a pectin dedicated volute sludge dehydrator and a screw shaft thereof. A reducing variable pitch screw shaft is adopted, a pitch of a screw panel is gradually reduced along a sludge outlet tank; the diameter of the screw shaft is gradually increased along a sludge outlet tank direction from the 1/3 position of the shaft length; and the length of the back 2/3 section of the screw shaft, namely the dehydration section, is increased by 10-15%. Aiming at the features that the pectin is high in sludge organic content, soft in mud, light in proportion, and hard to dehydrate, the pectin dedicated volute screw shaft is innovated and designed; and through special design of the screw shaft, the pressure in a dehydration cavity is higher, the compression ratio of a mud inlet end to a mud outlet end can achieve 3.5: 1, the dehydration time is longer, and the dehydration effect is better. The pectin dedicated volute sludge dehydrator has the characteristics of being larger in cavity pressure, hard to stick the shaft, longer in sludge dehydration retention time and high in dehydration efficiency; and the sludge dehydration effect can be effectively improved while guaranteeing that the processing efficiency of unit time cannot be reduced.
Description
Technical field
The invention belongs to environmental technology field, relate to a kind of special Stacked sludge dewatering machine of pectin and spiral thereof
Axle.
Background technology
Along with living standards of the people improve constantly, the demand of canned food based food increases the most day by day.At all kinds of canned foods
Middle canned vegetables and the volume of production of tinned fruit and volume of trade have become main flow.Produce in producing due to tinned fruit
A large amount of organic wastewaters, containing Organic substances such as sugar, organic acid, pectin, acid, alkali in waste water, if the most treated directly
Run in and to consume substantial amounts of dissolved oxygen into natural water, cause water hypoxia, make Fish and aquatile dead,
So while cannery develops rapidly, waste water handling problem causes the common concern of people day by day.
Containing substantial amounts of sugar, organic acid, pectin, acid, alkali etc. in the waste water produced in producing due to tinned fruit
Organic substance, the pectin mud organic substance content that fruit and vegerable industry waste water is left over after filtration, biological respinse is high, shale
Soft, light specific gravity, it is difficult to dehydration, utilizes belt filter press or filter press to carry out during sludge dewatering and easily block up
Plug filter cloth, mud extraction moisture content is high, and filter cloth cleans difficulty；Though the Stacked sludge dewatering machine of general type can be to this
Class mud processes, but because pectin class sludge quality is special, mud extraction moisture content is higher, process after mud cake without
Method is piled up, and when piling up or pack, sepage is bigger, it is difficult to outward transport, and brings follow-up mud follow-up in-depth process
Considerable influence.
The Stacked sludge dewatering machine of prior art can be widely used for following field: (1) Wastewater from Pig Farm, food
The organic sludge produced in the wastewater treatment process such as processing waste water；(2) electroplating wastewater, dyeing waste water, containing cutting
Oil waste water, the inorganic mud produced in the wastewater treatment process such as coating waste-water；(3) from vegetable residue, peel,
Food debriss etc. process in object and isolate liquid.Rely on the dewaterer of this form, by the rotation of screw
Transhipment is dynamic, and loose collar and retainer ring carry out relative motion, clean the space of filter house simultaneously, prevents blocking.
Such sludge dewatering equipment, the character according to handled mud is different, treatment effect and process energy
Power is all very different.The organic mud of dehydration is difficult to for some, in order to improve the dehydrating effect of mud, reduces
Mud extraction moisture content, can only reduce the speed of service of equipment, reduces mud cake quantum of output, and in order to increase dehydration, this is internal
Operating pressure and increase the sludge dewatering time, i.e. sacrificing while FU time-triggered protocol ability, in order to
Reach more preferably treatment effect.Running speed during general folded spiral shell machine process municipal sludge is 2-3Rpm, and locates
The speed of service during mud of the reason more difficult dehydration of pectin class can be only sustained at 1-2Rpm, and now mud cake is aqueous
Rate is the most less desirable.
Moreover fruit and vegerable industry has a feature being clearly distinguishable from other industry, it produces seasonal strong, produces the busy season
Shi Qi sludge yield is big, and is not the most substantially having mud to need to process.With this understanding with general folded spiral shell
Machine disposably puts into increasing what the way reaching treatment effect reducing equipment disposal ability will result in equipment.
Summary of the invention
It is an object of the invention to the defect overcoming existing conventional dehydration equipment to exist when processing pectin mud, it is provided that
A kind of special Stacked sludge dewatering machine of pectin effective to pectin sludge dewatering, that dewatering efficiency is high and spiral thereof
Axle.
Technical scheme is as follows:
A kind of helical axis of the special Stacked sludge dewatering machine of pectin, a kind of reducing variable-pitch auger axle of its employing,
The pitch edge of its flight goes out mud box direction and is gradually reduced；This helical axis from 1/3 position of axial length, its diameter
It is gradually increased along going out mud box direction；And the length of 2/3 section (i.e. dewatering period) increases 10-15% after this helical axis.
A kind of special Stacked sludge dewatering machine of pectin, it includes by retainer ring (the fixing lamination of annular), activity
The filtering body that ring (ring shaped movable lamination) and above-mentioned helical axis are constituted, also include case, filtrate collecting tank,
Filtrate outlet, enter mud box and go out mud box；Described casing interior is arranged in order several retainer ring, adjacent two
Being configured with the loose collar concentric and movable with retainer ring between retainer ring, the internal diameter of loose collar is than the internal diameter of retainer ring
Little；Helical axis passes from the centre bore of retainer ring and loose collar；Be provided with bottom filtering body filtrate collecting tank and
Filtrate outlet；Enter mud box and go out mud box and be separately positioned on the two ends of helical axis；Described helical axis be arranged on out
The frequency conversion motor of mud box side connects.The external diameter of retainer ring is bigger than the external diameter of loose collar, adjacent two retainer ring it
Between at the outer end edges more than loose collar external diameter, be provided with adjustment block, every piece of adjustment block is all fixing with connecting rod even
Connecing, connecting rod two ends are respectively and fixedly installed to into mud box and go out on mud box.
Further, the gap between adjacent two retainer ring is set to 2.0mm～4.0mm, consolidates for adjacent two
The gap determined between ring and loose collar is set to 0.1mm～1mm.
Further, this pectin special Stacked sludge dewatering machine compression ratio from mud inlet end to mud outlet end reaches
3.5:1, i.e. mud inlet end chamber space are 3.5:1 with the volumetric ratio of mud outlet end chamber space.
Beneficial effects of the present invention:
The present invention is directed to the feature of tinned fruit production industry pectin mud, fold spiral shell formula by accumulating every profession and trade for many years
The practical application experience of sludge dewatering equipment, through autonomous innovation, R & D design is specifically designed to pectin Treatment of Sludge
Stacked sludge dewatering machine---the special folded spiral shell formula dewaterer of-pectin industry, this equipment is mainly at helical axis, dynamic fixed
Improved in the aspects such as ring so that this equipment have cavity internal pressure more greatly, axle the most easy to stick, sludge dewatering
The time of staying is long, dewatering efficiency high, and the moisture percentage in sewage sludge after process is low, easily piles up, and piles up or fills
Bag, without obvious sepage, facilitates the advanced treating of follow-up mud.
The present invention is directed to the feature of pectin mud, innovative design a kind of pectin special Stacked sludge dewatering machine
Helical axis；This helical axis uses multidiameter shaft, increases the length of dewatering period, by the pitch of flight along mud extraction simultaneously
Case direction is gradually reduced, and helical axis is from ad-hoc location, and its diameter extends mud box direction and is gradually increased.Typically
Folded spiral shell machine helical axis is about 2:1 from the compression ratio of mud inlet end to mud outlet end, the special folded spiral shell machine of pectin of the present invention
Helical axis from the compression ratio of mud inlet end to mud outlet end up to 3.5:1.Therefore the dehydration of the pectin of the present invention special folded spiral shell machine
Cavity internal pressure is higher, and dewatering time is longer, and dehydrating effect is more preferable.The special folded spiral shell formula mud of pectin of the present invention
Dewaterer, compared with common Stacked sludge dewatering machine, can not reduce FU time-triggered protocol efficiency in guarantee
While be effectively improved sludge dewatering effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the special Stacked sludge dewatering machine of pectin of the present invention；
Fig. 2 is the structural representation of the helical axis in the present invention and flight；
Fig. 3 be the present invention the special Stacked sludge dewatering machine of pectin in the schematic diagram that is connected with loose collar of retainer ring.
In figure: 1, frequency conversion motor 2, go out mud box 3, screw 3A, dewatering period 3B, enriching section 4,
Retainer ring 5, loose collar 6, adjustment block 7, connecting rod 8, enter mud box 9, case 10,
Filtrate collecting tank 11, filtrate outlet 12, flight 13, helical axis 14, filtering body
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment
As in figure 2 it is shown, the helical axis 13 of the special Stacked sludge dewatering machine of a kind of pectin of the present invention, it uses
A kind of reducing variable-pitch auger axle, the pitch (distances between the most adjacent two flights) of its flight is along going out
Mud box direction is gradually reduced；This helical axis is from 1/3 position of axial length, and its diameter edge goes out mud box direction and gradually increases
Greatly.After this helical axis, the length of 2/3 section (i.e. dewatering period 3A) increases 10-15%.
As it is shown in figure 1, the special Stacked sludge dewatering machine of one pectin of the present invention, it include by retainer ring 4,
The filtering body 14 that loose collar 5 and above-mentioned helical axis 13 are constituted, also include case 9, filtrate collecting tank 10,
Filtrate outlet 11, enter mud box 8 and go out mud box 2；Described case 9 is internal is arranged in order several retainer ring 4
(the fixing lamination of annular), configures the loose collar 5 (ring concentric and movable with retainer ring 4 between adjacent retainer ring 4
Shape activity lamination), it is provided with filtrate collecting tank 10 and filtrate outlet 11 bottom filtering body 14；Described spiral shell
Spin axis 13 runs through retainer ring 4 and the inside of travelling ring 5, i.e. helical axis 13 from retainer ring 4 and travelling ring 5
Centre bore in pass, enter mud box 8 and go out mud box 2 and be separately positioned on the two ends of helical axis 13；Such as Fig. 2
Shown in, the pitch edge of the flight 12 that described helical axis 13 is arranged goes out mud box 2 direction and is gradually reduced；Institute
Stating helical axis 13 from ad-hoc location, from 1/3 position of axial length, its diameter is along going out mud box 2 direction gradually
Increase.
Being illustrated in figure 3 the connection diagram of retainer ring 4 and loose collar 5, retainer ring 4 and loose collar 5 have
Several, can adjust quantity as required, and the internal diameter of loose collar 5 is less than the internal diameter of retainer ring 4.Fixing
Gap between ring 4 is set to 2.0mm～4.0mm, and the gap between retainer ring 4 and loose collar 5 is arranged
For 0.1mm～1mm.This gap can regulate setting according to the mud object processed.Retainer ring 4
External diameter is bigger than the external diameter of loose collar 5, in the outer end more than loose collar 5 external diameter between adjacent two retainer ring 4
Edge is provided with (adjustment block 6 does not contacts with loose collar 5), and every piece of adjustment block 6 is all fixed with connecting rod 7
Connecting, connecting rod 7 two ends are respectively and fixedly installed to into mud box 8 and go out on mud box 2, play fixing retainer ring
4 thus the effect of fixing whole filtering body 14, when making loose collar 5 movable, retainer ring 4 remains
Fixing.
As in figure 2 it is shown, helical axis 13 in a certain specific position i.e. from 1/3 position of axial length, along mud extraction
Case 2 orient diameter is gradually increased place, and the pitch between flight 12 tapers into, and this helical axis mud inlet end
The volume ratio of sludge volume (chamber space) and mud outlet end sludge volume (chamber space) is 3.5:1, i.e. from
Mud inlet end is 3.5:1 to the compression ratio of mud outlet end, so can more effectively improve chamber pressure, make mud
Dehydrating effect is more preferable, and mud extraction moisture content is lower.Wherein helical axis 13 and flight 12 weld together, whole
Body constitutes screw 3.In the enriching section 3B part of screw in Fig. 1, the diameter of helical axis 13
Keep fixed numbers constant；In the dewatering period 3A part of screw, the diameter of helical axis 13 is gradually increased.
Helical axis 13 is connected with the frequency conversion motor 1 being arranged on out mud box 2 side.
Whole work process is as follows: the frequency conversion motor 1 being arranged on out mud box 2 side starts, and first drives spiral shell
Spin axis 13 and flight 12 rotate, and supply mud by entering mud box 8, and mud enters retainer ring 4, loose collar
Space (filter chamber) between 5 and helical axis, at enriching section 3B, owing to the internal diameter of loose collar 5 is than retainer ring 4
Internal diameter little, during rotation, mud produces pressure to loose collar 5, promotes loose collar 5 to transport between retainer ring 4
Dynamic, a part of moisture content flows out to filtrate by the gap between loose collar 5 and retainer ring 4 in motor process
Discharge from filtrate outlet 11 after collecting tank 10.Afterwards, flight 12 continues to drive mud spiral to transport forward
Move to dewatering period 3A i.e. helical axis 13 increased diameter area, after dewatering period 3A is dehydrated further, mud
Discharge from going out mud box 2.
Produce by certain cannery's yellow peach and test as a example by the mud in season.Take mud in second pond, device for dehydrating sladge waste
Use the special folded spiral shell formula sludge dewatering of pectin of general Stacked sludge dewatering machine (being called for short folded spiral shell machine) and the present invention
Machine contrasts.The helical axis rotary speed of selected folded spiral shell machine is as shown in table 1, helical axis enriching section diameter
(external diameter) is 133cm, other conditions such as enter mud amount, enter mud concentration, chemical feeding quantity etc. identical in the case of, its
Operation test the results are shown in Table 1.
Correction data from table 1 is it can be seen that under the conditions of different speed of screw shaft, use the fruit of the present invention
The special folded spiral shell machine of glue, compares the general folded spiral shell machine of employing, and the moisture percentage in sewage sludge after process all has reduction in various degree；
Speed of screw shaft is the least, and the moisture percentage in sewage sludge after process is the lowest, and dehydrating effect is the best.Identical at speed of screw shaft
Under conditions of, use the special folded spiral shell machine of pectin of the present invention, compare the general folded spiral shell machine of employing, the mud after process
Moisture content is lower, illustrates that the special folded spiral shell machine dehydrating effect of pectin of the present invention is more preferable.
Result of the test shows, appropriateness increases the helical axis mud inlet end volume ratio with mud outlet end (by along mud outlet end side
To being gradually reduced the pitch of flight, from 1/3 position of axial length, it is gradually increased the diameter of helical axis, gradually
Reducing the chamber space of the dewatering period 3A of filtering body, carry out increasing compression ratio, compression ratio reaches as high as 3.5:1),
Further, the distance by increasing dewatering period 3A (i.e. increases the length of rear 2/3 section of i.e. dewatering period 3A of helical axis
Degree) 10-15%, extend mud dewatering time, can effectively reduction process after moisture percentage in sewage sludge.
Table 1: operation test result
Therefore, the dehydration of folded spiral shell machine can be made by the length of helical axis Diameter Gradual Change and prolongation dewatering period 3A section
Pressure increases, and dewatering efficiency improves, and reduces the moisture content of mud extraction under the identical speed of service.Therefore the present invention
Folded spiral shell machine not monoenergetic meets the sludge dewatering requirement of general municipal wastewater, meanwhile, it is capable to do not reducing the unit interval
While treating capacity so that it is be applicable to the industry being dehydrated light, difficult of the shale as pectin sewage.
Claims (7)
1. the helical axis of the special Stacked sludge dewatering machine of pectin, it is characterised in that it uses one to become
Footpath variable-pitch auger axle, the pitch edge of its flight goes out mud box direction and is gradually reduced；This helical axis is from axial length
1/3 position is risen, and its diameter edge goes out mud box direction and is gradually increased.
2. the helical axis of the special Stacked sludge dewatering machine of pectin as claimed in claim 1, it is characterised in that
After this helical axis, the 2/3 section i.e. length of dewatering period increases 10-15%.
3. use the special Stacked sludge dewatering machine of pectin of helical axis as claimed in claim 1 or 2,
It is characterized in that, it includes the filtering body being made up of retainer ring, loose collar and above-mentioned helical axis, also includes cover
Shell, filtrate collecting tank, filtrate outlet, enter mud box and go out mud box；Described casing interior is arranged in order several
Retainer ring, is configured with the loose collar concentric and movable with retainer ring between adjacent two retainer ring, loose collar interior
Footpath is less than the internal diameter of retainer ring；Helical axis passes from the centre bore of retainer ring and loose collar；Bottom filtering body
It is provided with filtrate collecting tank and filtrate outlet；Enter mud box and go out mud box and be separately positioned on the two ends of helical axis；Described
Helical axis is connected with the frequency conversion motor being arranged on out mud box side.
4. the special Stacked sludge dewatering machine of pectin as claimed in claim 3, it is characterised in that retainer ring
External diameter bigger than the external diameter of loose collar, between adjacent two retainer ring at the outer end edges more than loose collar external diameter
Being provided with adjustment block, every piece of adjustment block is all fixedly connected with the connecting rod, connecting rod two ends be respectively and fixedly installed to into
Mud box and going out on mud box.
5. the special Stacked sludge dewatering machine of pectin as described in claim 3 or 4, it is characterised in that phase
Gap between adjacent two retainer ring is set to 2.0mm～4.0mm.
6. the special Stacked sludge dewatering machine of pectin as claimed in claim 5, it is characterised in that adjacent two
Gap between individual retainer ring and loose collar is set to 0.1mm～1mm.
7. the special Stacked sludge dewatering machine of pectin as described in claim 3 or 4, it is characterised in that: should
Pectin special Stacked sludge dewatering machine compression ratio from mud inlet end to mud outlet end reaches 3.5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283812.0A CN105712608A (en) | 2016-04-29 | 2016-04-29 | Pectin dedicated volute sludge dehydrator and screw shaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283812.0A CN105712608A (en) | 2016-04-29 | 2016-04-29 | Pectin dedicated volute sludge dehydrator and screw shaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105712608A true CN105712608A (en) | 2016-06-29 |
Family
ID=56161856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283812.0A Pending CN105712608A (en) | 2016-04-29 | 2016-04-29 | Pectin dedicated volute sludge dehydrator and screw shaft thereof |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017143943A1 (en) * | 2016-02-22 | 2017-08-31 | 上海同臣环保有限公司 | Novel laminated and spiral sludge dewatering machine |
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| WO2017143943A1 (en) * | 2016-02-22 | 2017-08-31 | 上海同臣环保有限公司 | Novel laminated and spiral sludge dewatering machine |
| US11034603B2 (en) | 2016-02-22 | 2021-06-15 | Shanghai Techase Environment Protection Co., Ltd. | Multi plate screw press sludge dewatering machine |
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