CN103833197A - Deep sludge dehydration method and system - Google Patents
Deep sludge dehydration method and system Download PDFInfo
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- CN103833197A CN103833197A CN201410092327.6A CN201410092327A CN103833197A CN 103833197 A CN103833197 A CN 103833197A CN 201410092327 A CN201410092327 A CN 201410092327A CN 103833197 A CN103833197 A CN 103833197A
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Abstract
The invention provides a deep sludge dehydration method and system. The deep sludge dehydration system comprises a modification device and further comprises a conveying device, a container, a driving device and a filter pressing device, wherein the inlet end of the conveying device is communicated with the modification device, and the outlet end of the conveying device is communicated with the container and the filter pressing device; the container comprises a piston; the outlet of the container is communicated with the modification device and the filter pressing device; the driving device is used for driving the piston to move in the container; the filter pressing device comprises at least two cavities superposed together; the volume of each cavity is kept invariable. The deep sludge dehydration system has the advantages of high dehydration rate, short production cycle, long service life and the like.
Description
Technical field
The present invention relates to solid-liquid separation, particularly deep dehydration method for sludge and system.
Background technology
Solid-liquid separation technique is except concentration and settlement equipment and heating power drying plant at present, substantially have following several for the technical equipment of dewatering: vacuum filter, centrifuge, belt filter press, cavity pressure filter etc., other structure formation can be concluded substantially as in above several classification forms.The each have their own feature of various technology, respectively has applicable field above.Wherein, diaphragm pressing machine is as the modified version of traditional cavity pressure filter, there is solid-liquid separation impellent large, newly-increased twice pressing after static filtering, the advantages such as mud extraction moisture content of the cake is low, but it is larger also to exist energy consumption, and filtration medium needs periodic replacement, and the dwell time is grown (4-8h), causes the low inferior shortcoming of production efficiency.
Summary of the invention
In order to solve the deficiency in above-mentioned prior art scheme, the invention provides the deep dehydration method for sludge that a kind of dehydration rate is high, working efficiency is high.
The object of the invention is to be achieved through the following technical solutions:
Deep dehydration method for sludge, described deep dehydration method for sludge comprises the following steps:
(A1) mud is transported in reforming apparatus, does modification;
(A2) mud after modification is sent in container and filter-pressing device;
(A3) close the connection of described reforming apparatus and container, between described container and filter-pressing device, keep being communicated with;
(A4) move the piston in described container, the mud in described container is expressed in described filter-pressing device and arrives set(ting)value pressurize, the volume of filter-pressing device inner chamber body remains unchanged;
Water in mud, by the filtration medium in each cavity, is discharged from cavity drainage channel afterwards.
According to above-mentioned deep dehydration method for sludge, preferably, use spiral pump that mud is transported in described container and filter-pressing device.
According to above-mentioned deep dehydration method for sludge, preferably, described each cavity adopts rigid material, and cavity is superimposed.
According to above-mentioned deep dehydration method for sludge, preferably, the center of described each cavity is communicated with.
The present invention also aims to provide that a kind of dehydration rate is high, efficiency is high, the deep dehydration system for sludge of long service life; This goal of the invention being achieved by the following technical programs:
A kind of deep dehydration system for sludge, described deep dehydration system for sludge comprises reforming apparatus; Described deep dehydration system for sludge further comprises:
E Foerderanlage, the entrance end of described e Foerderanlage is communicated with described reforming apparatus, exit end connection container and filter-pressing device;
Container, has piston in described container, and the outlet of described container is communicated with described reforming apparatus and filter-pressing device;
Drive unit, described drive unit is used for driving described piston to move in container;
Filter-pressing device, described filter-pressing device comprises at least two cavitys that are superimposed, and the volume of each cavity remains unchanged, and in described each cavity, has filtration medium, and drainage channel is arranged on described each cavity.
According to above-mentioned deep dehydration system for sludge, preferably, described e Foerderanlage adopts spiral pump.
According to above-mentioned deep dehydration system for sludge, preferably, described each cavity adopts rigid material.
According to above-mentioned deep dehydration system for sludge, preferably, the center of described each cavity is communicated with.
According to above-mentioned deep dehydration system for sludge, alternatively, described drive unit further comprises:
Motor and transmission rig, described transmission rig is arranged between described motor and piston.
According to above-mentioned deep dehydration system for sludge, preferably, described drainage channel be arranged on described cavity radially and/or axially.
Compared with prior art, the beneficial effect that the present invention has is:
1, contribute to increase the pressure between mud, significantly improved dehydration rate and the working efficiency of mud;
2, dewatering time is short, as charging 0.5h, and pressurize 0.5h, 1 hour whole cycle, thus shortening the production cycle, working efficiency is high;
3, filtration medium adopts metal material, withstand voltage height, and long service life, can reach 20 years;
4, cavity internal volume is constant, only depends on the pressure between mud to remove drainage, has reduced system operation expense.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art hold intelligible: these accompanying drawings are only for illustrating technical scheme of the present invention, and are not intended to protection scope of the present invention to be construed as limiting.In figure:
Fig. 1 is the schema of deep dehydration method for sludge of the present invention;
Fig. 2 is the structure diagram of deep dehydration system for sludge of the present invention;
Fig. 3 is the structure diagram of filter-pressing device of the present invention.
Embodiment
Fig. 1-3 and following declarative description optional embodiment of the present invention to instruct those skilled in the art how to implement and to reproduce the present invention.In order to instruct technical solution of the present invention, simplify or omitted some conventional aspects.Those skilled in the art should understand that be derived from these embodiments modification or replace will be within the scope of the invention.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present invention in every way.Thus, the present invention is not limited to following optional embodiment, and is only limited by claim and their equivalent.
Embodiment 1:
Fig. 1 has schematically provided the schema of the deep dehydration method for sludge of the embodiment of the present invention, and as shown in Figure 1, described deep dehydration method for sludge comprises the following steps:
(A1) mud is transported in reforming apparatus, does modification, as: mud is transported in the first container, adds interfacial agent and stirs; The modification of mud is the state of the art, does not repeat them here;
(A2) mud after modification is sent in second container and filter-pressing device by e Foerderanlage; As, by spiral pump transmission;
(A3) close the connection of described reforming apparatus and second container, between described container and filter-pressing device, be communicated with; Prevent that the mud in second container from pouring in down a chimney meeting the first container;
(A4) move the piston in described container, the mud in described container is expressed in described filter-pressing device and arrives set(ting)value pressurize, the volume of filter-pressing device inner chamber body remains unchanged; Cavity adopts rigid material;
Water in mud, by the filtration medium in each cavity, is discharged from cavity drainage channel afterwards.
Fig. 2 has schematically provided the structure diagram of the deep dehydration system for sludge (for implementing the system of above-mentioned dewatering) of the embodiment of the present invention, and as shown in Figure 2, described deep dehydration system for sludge comprises:
Reforming apparatus, described reforming apparatus comprises the first container, mud import and outlet:
E Foerderanlage, the entrance end of described e Foerderanlage is communicated with described reforming apparatus, exit end connection container and filter-pressing device; Described e Foerderanlage can adopt transferpump, as spiral pump;
Second container, has piston in described second container, and the outlet of described second container is communicated with the first container and the filter-pressing device of described reforming apparatus;
Drive unit, described drive unit is for driving the movement of described piston in described second container;
Filter-pressing device, described filter-pressing device comprises at least two cavitys that are superimposed, and the volume of each cavity (employing rigid material) remains unchanged, and in described each cavity, has filtration medium, and drainage channel is arranged on described each cavity.
In order to move preferably described piston, preferably, described drive unit comprises motor and transmission rig, and described transmission rig is arranged between described motor and piston, makes under the effect of drive unit described piston translational motion in second container.
For draining better, preferably, described drainage channel be arranged on described cavity radially and/axially.Embodiment 2:
According to the application examples of the deep dehydration method for sludge of embodiment 1 and system.
In this application examples, adopt spiral pump as e Foerderanlage, be arranged between the first container and second container, the first valve and the second valve are set on the pipeline between described screw rod delivery side of pump and the entrance end of second container, the second valve and the 3rd valve are set on the pipeline between entrance end and the filter-pressing device of described second container.
Fig. 3 has schematically provided the structure diagram of filter-pressing device, and as shown in Figure 3, described filter-pressing device comprises at least two cavitys 11 that are superimposed, and described cavity entirety is tubular, adopts high-strength stainless steel to make, and is difficult for deformation; The bottom of cavity has central through hole 34, and is covered with filtration medium 21 in inside, as filter cloth; On the barrel of cavity, there is radial direction through hole 31, there is axial blind hole 32 and blind hole radially 33 in the inside of the bottom of cavity, blind hole 33 connection shafts radially to blind hole 32 to become through hole on the whole, be used for being communicated with cavity 11 inside and extraneous (as drainage channel), so that draining.In the cavity at filter-pressing device two ends, can only establish axial through hole in the bottom of cavity.
Deep dehydration method for sludge, is also the working process of above-mentioned deep dehydration system for sludge, said method comprising the steps of:
(A1) mud is transported in reforming apparatus, does modification, and specific practice is:
Mud is transported in the first container, adds interfacial agent and stirs;
Reduce the surface tension of mud solid-liquid by boundary's (table) surface-active agent, reduced anti-shearing force and the rheological of mud flco, make the Energy Intensity Reduction of the operating process such as stirring, mixing, and the medicament of follow-up interpolation is more easily evenly distributed.Simultaneously, solublization and the dissemination of boundary's (table) surface-active agent amphiphilic structure impel mud ECP to be transferred in water, ECP distribution in mud flco is changed, promote the disintegration of mud flco structure, impel contained moisture in mud flco grid to be released, thereby the moisture degree of depth being conducive in mud is deviate from.
(A2) open first, second, third valve, the mud after modification is sent in second container and filter-pressing device by spiral pump;
(A3) close described the first valve, prevent that the mud in second container from pouring in down a chimney back the first container;
(A4) under motor drives, piston moves in described second container, mud in described second container is expressed in described filter-pressing device: enter by the centre hole of each cavity in the space of each cavity, the pressure increasing between mud becomes large gradually, to pressurize after set(ting)value, volume in filter-pressing device remains unchanged, and the water in mud flows out filter-pressing device after passing stainless steel filtration medium, drainage channel;
After pressurize half an hour, open cavity, export dry mud cake;
(A5) close described the 3rd valve, open the first valve, start motor and spiral pump, thereby piston is retracted to original position, the mud in the first container is sucked in second container simultaneously;
In the time that filter-pressing device need to overhaul, close the second valve, so that maintenance.
Claims (10)
1. deep dehydration method for sludge, described deep dehydration method for sludge comprises the following steps:
(A1) mud is transported in reforming apparatus, does modification;
(A2) mud after modification is sent in container and filter-pressing device;
(A3) close the connection of described reforming apparatus and container, between described container and filter-pressing device, be communicated with;
(A4) move the piston in described container, the mud in described container is expressed in described filter-pressing device and arrives set(ting)value pressurize, the volume of filter-pressing device inner chamber body remains unchanged;
Water in mud, by the filtration medium in each cavity, is discharged from cavity drainage channel afterwards.
2. deep dehydration method for sludge according to claim 1, is characterized in that: use spiral pump that mud is transported in described container and filter-pressing device.
3. deep dehydration method for sludge according to claim 1, is characterized in that: described each cavity adopts rigid material, and cavity is superimposed.
4. deep dehydration method for sludge according to claim 1, is characterized in that: the center of described each cavity is communicated with.
5. a deep dehydration system for sludge, described deep dehydration system for sludge comprises reforming apparatus; It is characterized in that: described deep dehydration system for sludge further comprises:
E Foerderanlage, the entrance end of described e Foerderanlage is communicated with described reforming apparatus, exit end connection container and filter-pressing device;
Container, has piston in described container, and the outlet of described container is communicated with described reforming apparatus and filter-pressing device;
Drive unit, described drive unit is used for driving described piston to move in container;
Filter-pressing device, described filter-pressing device comprises at least two cavitys that are superimposed, and the volume of each cavity remains unchanged, and in described each cavity, has filtration medium, and drainage channel is arranged on described each cavity.
6. deep dehydration system for sludge according to claim 5, is characterized in that: described e Foerderanlage adopts spiral pump.
7. deep dehydration system for sludge according to claim 5, is characterized in that: described each cavity adopts rigid material.
8. deep dehydration system for sludge according to claim 5, is characterized in that: the center of described each cavity is communicated with.
9. deep dehydration system for sludge according to claim 5, is characterized in that: described drive unit further comprises:
Motor and transmission rig, described transmission rig is arranged between described motor and piston.
10. deep dehydration system for sludge according to claim 5, is characterized in that: described cavity radially and/or be axially arranged with drainage channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092327.6A CN103833197A (en) | 2014-03-11 | 2014-03-11 | Deep sludge dehydration method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092327.6A CN103833197A (en) | 2014-03-11 | 2014-03-11 | Deep sludge dehydration method and system |
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| CN103833197A true CN103833197A (en) | 2014-06-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254162A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering system |
| CN105254163A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411797A (en) * | 1979-05-19 | 1983-10-25 | Basf Aktiengesellschaft | Dewatering of sewage sludges on chamber filter presses |
| JPH05318189A (en) * | 1992-05-19 | 1993-12-03 | Nagaoka:Kk | Pressurization type dehydrating device for sludge treatment and sludge treatment |
| CN1292769A (en) * | 1999-01-06 | 2001-04-25 | 施托克豪森公司 | Method of dewatering slurries using leaf filters (filter presses) |
| 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 |
| CN203845923U (en) * | 2014-03-11 | 2014-09-24 | 浙江昌能环保科技有限公司 | Deep dehydration system for sludge |
-
2014
- 2014-03-11 CN CN201410092327.6A patent/CN103833197A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411797A (en) * | 1979-05-19 | 1983-10-25 | Basf Aktiengesellschaft | Dewatering of sewage sludges on chamber filter presses |
| JPH05318189A (en) * | 1992-05-19 | 1993-12-03 | Nagaoka:Kk | Pressurization type dehydrating device for sludge treatment and sludge treatment |
| CN1292769A (en) * | 1999-01-06 | 2001-04-25 | 施托克豪森公司 | Method of dewatering slurries using leaf filters (filter presses) |
| 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 |
| CN203845923U (en) * | 2014-03-11 | 2014-09-24 | 浙江昌能环保科技有限公司 | Deep dehydration system for sludge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254162A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering system |
| CN105254163A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering machine |
| CN105254163B (en) * | 2015-11-05 | 2017-10-27 | 盐城市远大环保设备有限公司 | Automate sludge dewatering equipment |
| CN105254162B (en) * | 2015-11-05 | 2017-12-08 | 盐城市远大环保设备有限公司 | Automate sludge dewatering system |
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Application publication date: 20140604 |