CN106865948B - Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline - Google Patents
Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline Download PDFInfo
- Publication number
- CN106865948B CN106865948B CN201710164959.2A CN201710164959A CN106865948B CN 106865948 B CN106865948 B CN 106865948B CN 201710164959 A CN201710164959 A CN 201710164959A CN 106865948 B CN106865948 B CN 106865948B
- Authority
- CN
- China
- Prior art keywords
- pipe
- sludge
- reaction
- pressure relief
- water outlet
- 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.)
- Active
Links
Images
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an intermittent water outlet and electricity dehydration device based on a sludge transport pipeline, which comprises a reaction pipe, a water discharge pipe, an anode electrode, a cathode electrode, a sludge inlet pipe and a sludge outlet pipe, wherein the upper end of the reaction pipe is sealed, the other end of the reaction pipe is connected with the water discharge pipe, the anode electrode is arranged at one sealed end of the reaction pipe, the cathode electrode is arranged between the reaction pipe and the water discharge pipe, the sludge inlet pipe and the sludge outlet pipe are arranged at two sides of the reaction pipe and are positioned in the area between the anode electrode and the cathode electrode, and the sludge inlet pipe is positioned above the sludge outlet pipe. The electric dehydration device realizes the electric dehydration of sludge flowing in the pipeline, reduces the dependence on the field in the dehydration process and saves the dehydration time; and the functions of pressurizing, accelerating dehydration and intermittent water outlet can be realized; intermittent effluent is adopted to separate mud and water, so that short-time high pressure is provided for the device, and the dehydration capacity is improved.
Description
Technical Field
The invention relates to a sludge dewatering device, in particular to an intermittent water outlet electric dewatering device based on convective dynamic sludge of a sludge conveying pipeline.
Background
Silt refers to unconsolidated, weak or very fine grained soil that has been deposited in a still or slowly flowing aqueous environment, formed by physicochemical and biochemical actions. The sludge treatment method in the industry mainly adopts a sludge piling field mode, generally, natural air drying is adopted, but the method has the advantages of large floor area, long dehydration time, easy generation of secondary pollution and unsatisfactory dehydration effect.
The solid material is charged with positive electricity or negative electricity on the surface on the interface contacting with the polar water due to ionization or ion adsorption. The charged particles form an electric double layer with the counter ions in the liquid. Under the action of the electric field, counter ions in the diffusion layer carry water to move towards the electrode, and an electroosmosis phenomenon is formed. The electroosmosis phenomenon is utilized to realize the separation of solid-liquid mixture, particularly for colloid materials, the mechanical dehydration method has poor effect, and the electroosmosis dehydration technology has better dehydration effect.
The current electric dehydration technology is generally to use a vertical electric field to perform electric dehydration on the sludge, and apply pressure above an anode plate to form a pressurized electric dehydration process. But the study of the electrical dewatering of sludge in flow in pipelines is essentially open. Through carrying out the electrical dehydration to the silt of flow in-process, can reduce the step and the time of silt dehydration, reduce unnecessary place spending, realize dealing with the optimization of benefit purpose.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides an intermittent water outlet and electricity dehydration device based on a sludge transportation pipeline, which realizes the electric dehydration of sludge flowing in the pipeline, can realize the functions of pressurization acceleration dehydration and intermittent water outlet and greatly improves the dehydration efficiency.
The technical scheme is as follows: in order to achieve the purpose, the intermittent water and electricity discharging and dehydrating device based on the sludge conveying pipeline is characterized by comprising a reaction pipe, a water discharging pipe, an anode electrode, a cathode electrode, a sludge inlet pipe and a sludge outlet pipe, wherein the upper end of the reaction pipe is sealed, the other end of the reaction pipe is connected with the water discharging pipe, the anode electrode is arranged at one sealed end of the reaction pipe, the cathode electrode is arranged between the reaction pipe and the water discharging pipe, the sludge inlet pipe and the sludge outlet pipe are arranged on two sides of the reaction pipe and are positioned in the area between the anode electrode and the cathode electrode, and the sludge inlet pipe is positioned above the sludge outlet pipe.
The mud inlet pipe is provided with a first check valve and a first stop valve, and the mud outlet pipe is provided with a second stop valve, a first pressure release valve and a second check valve. The first check valve, the first stop valve, the second stop valve and the second check valve are arranged to facilitate replacement and protect the device; the function of intermittent water outlet is controlled by a first pressure relief valve, and the first pressure relief valve ensures that high pressure exists in the electric dehydration device for a short time.
The anode electrode is flat for providing a parallel electric field.
Wherein, the cathode electrode is a porous net with the mesh number more than 150 meshes. The mesh number of the cathode electrode is determined according to the condition that only water can pass through. The mesh number is too low, muddy water can pass through, so the mesh number is more, and the pore diameter of the mesh is smaller, so that the aim of ensuring that only water can pass through is fulfilled.
The distance between the anode electrode and the cathode electrode is 0.2 m-1.5 m. Too large distance, less obvious effect of the electric field, too short distance and too narrow range of the electric field.
Furthermore, the included angles between the mud inlet pipe, the mud outlet pipe and the reaction pipe are all 0-90 degrees and can be adjusted. As a water supply and drainage device, the reduction of head loss is very important, and the water loss in the sludge conveying process is reduced by adjusting the included angles between the sludge inlet pipe and the sludge outlet pipe and the reaction pipe.
And a pressure relief pipe is further arranged on one side of the reaction pipe, and a second pressure relief valve is arranged on the pressure relief pipe. The second pressure relief valve on the pressure relief pipe plays a role in preventing the device from being excessively large in pressure and protecting the device.
The pressure relief value of the second pressure relief valve is greater than that of the first pressure relief valve, and the pressure relief values of the two pressure relief valves are both smaller than the bearing pressure value of the device. The purpose of the first pressure release valve is to enable the device to intermittently output water, the purpose of the second pressure release valve is to protect the device from explosion, and the pressure relief value of the first pressure release valve needs to be smaller than that of the second pressure release valve and is smaller than the bearing pressure of the device.
Further, the anode electrode and the cathode electrode are respectively connected with the anode and the cathode of an external power supply through an anode wire and a cathode wire which penetrate through the reaction tube.
Furthermore, the outer wall of the electric dehydration device is made of an insulating material. All main parts can be dismantled and changed.
The working principle is as follows: before pumping mud, the device is built, the anode electrode and the cathode electrode are connected with the anode and the cathode of an external power supply, and after the device is built, whether the device has water leakage is checked. When pumping mud, the mud pump pumps the water-containing mud out and conveys the water-containing mud into the pipeline, and the water-containing mud sequentially passes through the mud inlet pipe, the area between the anode electrode and the cathode electrode in the reaction pipe and the mud outlet pipe. When the pressure in the device does not reach the pressure value of the first pressure relief valve on the sludge discharge pipe, the first pressure relief valve on the sludge discharge pipe is in a closed state, the water-containing sludge continuously enters the device, the pressure in the device is gradually increased until the pressure value of the first pressure relief valve on the sludge discharge pipe is reached, the device is opened, and the sludge flows out from the sludge discharge pipe. Wherein reduce the water loss among the silt transportation process through adjusting into the contained angle between mud pipe and the play mud pipe and the reaction tube. The combined water and free water in the sludge are subjected to multiple actions of an electric field, internal pressure and gravity between the anode and the cathode in the device, are separated out and are discharged from the drain pipe through the mesh cathode electrode. The second pressure relief valve on the pressure relief pipe plays a role in preventing the device from being excessively large in pressure and protecting the device.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. the electric dehydration device realizes the electric dehydration of sludge flowing in the pipeline, reduces the dependence on the field in the dehydration process and saves the dehydration time; and the functions of pressurizing, accelerating dehydration and intermittent water outlet can be realized.
2. The electric dehydration device disclosed by the invention is used for separating mud from water, intermittent water discharge is adopted, short-time high pressure is provided for the device, and the dehydration capacity is improved.
3. The invention has high dehydration efficiency, and compared with the traditional dehydration process, the invention enhances the removal of the bound water in the sludge.
4. The invention has simple structure, the main parts of the invention can be disassembled and replaced, and the invention has better compatibility with the existing equipment, and is beneficial to practical production and application.
Drawings
FIG. 1 is a schematic structural view of an intermittent water outlet electric dehydration device of the invention;
FIG. 2 is a schematic view of the structure of the intermittent electric dewatering device after the angles of the mud inlet pipe, the mud outlet pipe and the reaction pipe are changed.
Detailed Description
The invention is further illustrated by the following figures and examples.
Examples
As shown in fig. 1, an intermittent water outlet and electricity dehydration device based on a sludge transportation pipeline comprises a reaction pipe 1, a water outlet pipe 2, an anode electrode 3, a cathode electrode 4, a sludge inlet pipe 5 and a sludge outlet pipe 6, wherein one end of the reaction pipe 1 is sealed, the other end of the reaction pipe is connected with the water outlet pipe 2, the anode electrode 3 is arranged at the sealed end 3 of the reaction pipe 1 and is in a flat plate shape, the cathode electrode 4 is arranged between the reaction pipe 1 and the water outlet pipe 2 and is a porous net with the mesh number larger than 150 meshes, the distance between the anode electrode 3 and the cathode electrode 4 is 0.2 m-1.5 m, and the distance between the anode electrode 3 and the cathode electrode 4 can be determined according to the property; the anode electrode 3 and the cathode electrode 4 are respectively connected with the anode and the cathode of an external power supply through an anode wire 14 and a cathode wire 15 which penetrate through the reaction tube 1. The mud inlet pipe 5 and the mud outlet pipe 6 are arranged on two sides of the reaction pipe 1 and are located between the anode electrode 3 and the cathode electrode 4, the mud inlet pipe 5 is located above the mud outlet pipe 6, an inlet of the mud inlet pipe 5 is close to the anode electrode 3, an outlet of the mud outlet pipe 6 is close to the cathode electrode 4, water in mud entering from the mud inlet pipe is made to flow out from an anode to a cathode under the action of an electric field, included angles between the mud inlet pipe 5 and the mud outlet pipe 6 and the reaction pipe 1 are all 0-90 degrees and can be adjusted, the included angles can be 45 degrees, as shown in fig. 2, a first check valve 7 and a first check valve 8 are arranged on the mud inlet pipe 5, and a second check valve 9, a first pressure release valve 10 and a second check valve 11 are arranged on the mud outlet pipe 6. A pressure relief pipe 12 is further arranged on one side of the reaction pipe 1, and a second pressure relief valve 13 is arranged on the pressure relief pipe 12; the pressure relief value of the second pressure relief valve 13 is greater than that of the first pressure relief valve 10, and the pressure relief values of the two pressure relief valves are both smaller than the bearing pressure value of the device. The outer wall of the whole electric dehydration device is made of insulating materials, and all main parts can be detached and replaced.
Before pumping mud, the device is well built, the anode electrode 3 and the cathode electrode 4 are connected with the anode and the cathode of an external power supply, and after the device is built, whether the device has water leakage is checked. When pumping mud, the mud pump pumps out the water-containing mud and conveys the water-containing mud into the mud inlet pipe 5, and the water-containing mud sequentially passes through the mud inlet pipe 5, the area between the anode electrode 3 and the cathode electrode 4 in the reaction pipe 1 and the mud outlet pipe 6. When the pressure in the device does not reach the pressure value of the first pressure relief valve on the sludge outlet pipe 5, the first pressure relief valve 10 on the sludge outlet pipe 6 is in a closed state, the water-containing sludge continuously enters the device, the pressure in the device is gradually increased until the pressure value of the first pressure relief valve 10 on the sludge outlet pipe is reached, and the sludge is opened to flow out of the sludge outlet pipe 6. Wherein the water loss in the sludge conveying process is reduced by adjusting the included angles between the sludge inlet pipe 5 and the sludge outlet pipe 6 and the reaction pipe 1. The combined water and free water in the sludge are subjected to multiple actions of an electric field, internal pressure and gravity between the anode and the cathode in the device, are separated out and are discharged from the water discharge pipe 2 through the mesh cathode electrode 3. The second relief valve 13 of the relief pipe 12 serves to protect the device from an excessive internal pressure. 14 after the equipment runs for a period of time, the device at the joint of each pipeline is checked, and the worn electrode net is replaced in time so as not to influence the dewatering effect.
Claims (5)
1. The intermittent water outlet and electricity dewatering device based on the sludge conveying pipeline is characterized by comprising a reaction pipe (1), a water outlet pipe (2), an anode electrode (3), a cathode electrode (4), a sludge inlet pipe (5) and a sludge outlet pipe (6), wherein the upper end of the reaction pipe (1) is sealed, the other end of the reaction pipe is connected with the water outlet pipe (2), the anode electrode (3) is arranged at one sealed end of the reaction pipe (1), the cathode electrode (4) is arranged between the reaction pipe (1) and the water outlet pipe (2), the sludge inlet pipe (5) and the sludge outlet pipe (6) are arranged on two sides of the reaction pipe (1) and are positioned in the area between the anode electrode (3) and the cathode electrode (4), and the sludge inlet pipe (5) is positioned above the sludge outlet pipe (6); a first check valve (7) and a first stop valve (8) are arranged on the mud inlet pipe (5), and a second stop valve (9), a first pressure release valve (10) and a second check valve (11) are arranged on the mud outlet pipe (6); the included angles between the mud inlet pipe (5), the mud outlet pipe (6) and the reaction pipe (1) are all 0-90 degrees and can be adjusted; a pressure relief pipe (12) is also arranged on one side of the reaction pipe (1); a second pressure relief valve (13) is arranged on the pressure relief pipe (12); the pressure relief value of the second pressure relief valve (13) is larger than that of the first pressure relief valve (10), and the pressure relief values of the two pressure relief valves are smaller than the bearing pressure value of the device.
2. An intermittent water outlet electric dehydration device according to claim 1 characterized in that the anode electrode (3) is flat plate-like.
3. An intermittent water outlet electric dewatering device according to claim 1, characterized in that the cathode electrode (4) is a porous mesh with a mesh number of more than 150.
4. An intermittent water outlet electric dehydration device according to claim 1, characterized in that the distance between the anode electrode (3) and the cathode electrode (4) is 0.2 m-1.5 m.
5. An intermittent water outlet and electricity dewatering device according to claim 1, characterized in that the anode electrode (3) and the cathode electrode (4) are connected with the positive and negative electrodes of an external power supply through an anode wire (14) and a cathode wire (15) passing through the reaction tube (1), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164959.2A CN106865948B (en) | 2017-03-20 | 2017-03-20 | Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164959.2A CN106865948B (en) | 2017-03-20 | 2017-03-20 | Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106865948A CN106865948A (en) | 2017-06-20 |
| CN106865948B true CN106865948B (en) | 2020-09-18 |
Family
ID=59173145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710164959.2A Active CN106865948B (en) | 2017-03-20 | 2017-03-20 | Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106865948B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095742B (en) * | 2018-08-23 | 2021-01-12 | 河海大学 | Efficient dewatering system and method for river and lake sludge |
| CN111689678A (en) * | 2020-06-25 | 2020-09-22 | 深圳市市政工程总公司 | Dregs dewatering structure based on electrodialysis dewatering |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224943B (en) * | 2008-02-01 | 2010-09-08 | 陈江涛 | Container type electroosmosis sludge soil reproducing method and device thereof |
| CN101774745B (en) * | 2010-02-05 | 2012-01-04 | 河海大学 | Sludge storing pipe bag for dehydration and dehydration method |
| CN202054725U (en) * | 2011-05-27 | 2011-11-30 | 煤炭科学研究总院杭州环保研究院 | Pneumatic pressure stabilizing device for sludge dewatering |
| CN103570208A (en) * | 2012-07-31 | 2014-02-12 | 西门子公司 | Mechanical-auxiliary electric dehydration device |
| CN203820614U (en) * | 2014-01-24 | 2014-09-10 | 宇星科技发展(深圳)有限公司 | Sludge electro-osmotic dewatering experimental device |
| CN104030540A (en) * | 2014-04-27 | 2014-09-10 | 邓立新 | Vacuum-filtration and electric-dehydration sludge treating method |
| CN104926066B (en) * | 2015-06-09 | 2017-10-03 | 沈阳建筑大学 | It is a kind of that innoxious and deep dehydration the method for heavy metal is realized simultaneously to dewatered sludge |
-
2017
- 2017-03-20 CN CN201710164959.2A patent/CN106865948B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106865948A (en) | 2017-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8772004B2 (en) | System and method for high-voltage pulse assisted aggregation of algae | |
| CN106865948B (en) | Intermittent water outlet and electricity dewatering device based on sludge conveying pipeline | |
| CN105923977B (en) | The sewage sludge dehydration device of electro-osmosis filters pressing coupling | |
| CN109095742B (en) | Efficient dewatering system and method for river and lake sludge | |
| CN203741906U (en) | Continuous cutter-suction type sludge handling ship | |
| CN101519236A (en) | Magnetic separation seawater desalinating method and device therefor | |
| CN106946371A (en) | A kind of wastewater filtering device | |
| CN106746466A (en) | A kind of system of electrolytic electro-dialysis air pressure press filtration Combined Treatment sludge dewatering | |
| CN103359809B (en) | Ion removing device | |
| CN105800891A (en) | Electroosmosis and mechanical filter-pressing coupled sewage sludge dewatering method | |
| CN106865925B (en) | Dewatering device with spiral filtering surface | |
| CN106830610B (en) | A kind of method of high current electrolysis-high-voltage electrodialysis-high pressure gas filters pressing Combined Treatment sludge | |
| CN202808557U (en) | Sludge dewatering device of sewage plant | |
| CN104030540A (en) | Vacuum-filtration and electric-dehydration sludge treating method | |
| CN105776799B (en) | Batch production electro-osmosis sludge dehydration treatment technology | |
| CN106746447B (en) | Electric dehydration device based on silt transportation pipeline | |
| CN204098015U (en) | Vacuum preloading roly-poly type captation | |
| CN207331862U (en) | A kind of combination compression system of water system | |
| CN104294812A (en) | Tumbler-type water collecting device for vacuum preloading | |
| CN110550848A (en) | Horizontal-arranged cathode vacuum electroosmosis sludge dewatering device and method | |
| CN205907065U (en) | Pipe electro -chemical water treatment device tied in a bundle | |
| CN103866758B (en) | A kind of vacuum electroosmosis combination electrode | |
| CN203781883U (en) | Circulating type device for removing phosphorous from wastewater by electro-adsorption | |
| CN209010195U (en) | A kind of field Quick purifying device | |
| CN207210037U (en) | A kind of high-salt wastewater recycling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |