CN102583953A - Sludge drying method - Google Patents
Sludge drying method Download PDFInfo
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- CN102583953A CN102583953A CN2012100861001A CN201210086100A CN102583953A CN 102583953 A CN102583953 A CN 102583953A CN 2012100861001 A CN2012100861001 A CN 2012100861001A CN 201210086100 A CN201210086100 A CN 201210086100A CN 102583953 A CN102583953 A CN 102583953A
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Abstract
The invention relates to a sludge drying method, which includes that: sludge with about 96% of moisture content in a sludge storage tank is concentrated, pumped to a sludge concentrator for concentrating and collected through a sludge groove and then enters a transformation kettle; simultaneously prepared transforming agents, stabilizing agents and deodorants are delivered to the transformation kettle; and the concentrated sludge and drugs are stable in transformation in the transformation kettle, are delivered to a filter press for dewatering through a screw pump after meeting filter pressing dewatering requirements, obtained filter cakes with about 45% of moisture content are crushed, unloaded to a dry sludge warehouse and delivered to a thermal power plant for burning. In the process, odor of the transformation kettle, a drying workshop and the dry sludge warehouse is collected and then absorbed by an absorption tower to be discharged after reaching the standard, and filter liquor generated during sludge concentration dewatering and sludge filter pressing dewatering is collected and then sent back to a sewage plant forebay for treatment. The sludge drying method has the advantages of being reasonable in formula design, advanced in technical process and low in cost, achieving one-step drying, saving energy, reducing consumption and not polluting environments.
Description
Technical field
The present invention relates to a kind of method of sludge drying, be applicable to the preceding sludge drying technology of thermoelectricity burning.
Background technology
The mud that existing sewage work produces generally is through drying and other treatment, and the water ratio of mud is reduced to 80%.Move thermal power plant then to, carry out the secondary mummification, reenter the stove burning after the water ratio of mud is reduced to about 50%.Yet 80% mud can cause secondary pollution in transportation, and the high enterprise of transportation cost.Both be unfavorable for the protection of environment, also consumes energy more.
Summary of the invention
It is reasonable that technical problem to be solved by this invention provides a kind of formulating of recipe, and technological process is advanced, realizes a step mummification, and cost is low, and is energy-saving and cost-reducing, the method for sludge drying free from environmental pollution.
The present invention solves the problems of the technologies described above the method that the technical scheme that is adopted is this sludge drying, and its process step is:
After a, the agent of will wadding a quilt with cotton with fixed attention configure, be pumped to the mud thickner;
B, the mud of water ratio 96% is delivered to the mud thickner concentrates, make the water ratio of mud, obtain preliminary thickened sludge 88% to 90%;
C, preliminary thickened sludge is delivered to transformation pot;
D, also be delivered to transformation pot after transforming agent, stablizer, reodorant configured, preliminary thickened sludge is stable through transforming, and obtains secondary concentration mud;
E, secondary concentration mud is delivered to pressure filter carries out filter-press dehydration, the filter cake of the water ratio 45% that obtains;
F, warehouse-in after the filter cake fragmentation is stored, accomplish the mummification of mud.
As preferably, the agent of wadding a quilt with cotton with fixed attention of the present invention is a SEPIGEL 305.
As preferably, transforming agent of the present invention is the polymeric aluminum molysite, and stablizer is the shale breeze, and reodorant is unslaked lime.
As preferably, the addition of the agent of wadding a quilt with cotton with fixed attention of the present invention is 5/1000ths of an initial sludge quality.
As preferably, the addition of transforming agent of the present invention is 1.8%, and the addition of stablizer is 2%, and the addition of reodorant is 1.5%.
As preferably, in the whole drying engineering of the present invention, use the absorption tower to collect and handle the foul smell that produces in the drying process.
As preferably, the sewage that produces among step b of the present invention and the step e is recovered to sewage work and handles.
The present invention has the following advantages and characteristics with existing compared with techniques: prior art is 50% o'clock with wet mud per ton by 80% water ratio mummification, adopts drying with steam and mechanism filter-pressing, and its energy consumption signature coal is respectively 80kg and 3.5kg.By handling 500 tons every day, year handle 150,000 tons of meters, with technical scheme of the present invention then can year 11500 tons in feast-brand mark coal.
The processing that is embodied as effective solution mud and the handling problems of one step of biochemical sludge dehydration technique of the present invention provide good outlet; Solved in the past handle, environmental problem that disposing sludge possibly brought, the sound development of Fuyang City's paper industry is played good pushing effect; The construction of project is that the burning disposal of mud has been created condition.Burn the heat energy that produces and carry out regional heating and generating, thus dispersive arcola in the alternative zone, and this environment protection for the zone has positive effect, so the construction of this project has above dual positive effect.
Significantly reduce transportation cost, reduced the environmental pollution in the transportation, saved a large amount of human costs.
Description of drawings
Fig. 1 is structure of the present invention and schematic flow sheet.
Label declaration: mud storage pool 1, chemicals dosing plant 2, mud thickner 3, thickened sludge groove 4, transformation pot 5, pressure filter 6, shredder assembly 7, dewatered sludge heap storehouse 8, wet sludge pump 9, configuration still 10, feed bin 11, absorption tower 12, compound pump 13, spiral pump 14, tubular type handling machinery 15, confection pump 16.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description, following examples are to explanation of the present invention and the present invention is not limited to following examples.
Embodiment 1:
As shown in Figure 1, the method for sludge drying of the present invention is: after the agent SEPIGEL 305 of in chemicals dosing plant 2, will wadding a quilt with cotton with fixed attention configures, deliver to mud thickner 3 through compound pump 13.The mud of water ratio 96% is delivered to mud thickner 3 with wet sludge pump 9 concentrates from mud storage pool 1, make the water ratio of mud reduce to 88% to 90%, obtain preliminary thickened sludge.The sewage of deviating from is recovered to sewage work and handles.
The agent SEPIGEL 305 addition of wadding a quilt with cotton with fixed attention is 5/1000ths of an initial sludge quality.
Preliminary thickened sludge is delivered to transformation pot 5; Transforming agent polymeric aluminum molysite, stablizer shale breeze, reodorant unslaked lime are delivered to configuration still 10 through tubular type handling machinery 15 respectively from feed bin 11; Also be delivered to transformation pot 5 after in configuration still 10, configuring; Preliminary thickened sludge is stable through transforming, and obtains secondary concentration mud.
The addition of transforming agent is 1.8% of a preliminary thickened sludge, and the addition of stablizer is 2% of a preliminary thickened sludge, and the addition of reodorant is 1.5% of a preliminary thickened sludge.
Secondary concentration mud is delivered to pressure filter 6 with spiral pump 14 carries out filter-press dehydration, the filter cake of the water ratio 45% that obtains.The filtrating that pressure filter 6 produces is recovered to sewage work and handles.
Store going into dewatered sludge heap storehouse 8 after the filter cake fragmentation, accomplish the mummification of mud.
In whole process, the foul smell that produces in the drying process is responsible for collecting and handling in absorption tower 12, links to each other with mud storage pool 1, mud thickner 3, thickened sludge groove 4, transformation pot 5, pressure filter 6, shredder assembly 7, dewatered sludge heap storehouse 8 respectively.
Transport dewatered sludge to the heat power plant incineration disposal with the shovel loader entrucking according to current demand.
This project is through the practical application of Fuchunjiang River environmental protection Thermo Electron Corp.; Be whole sludge incineration comprehensive utilization of resources project important component part; After whole project is built up, can effectively handle 2035 tons in mud, 275 tons of paper slags every day, increase heat capacity 215t/h; 60,000 tons in annual feast-brand mark coal reduces SO
2160 tons of quantity dischargeds, 55 tons of flue dust have been practiced thrift the soil simultaneously, have solved the secondary pollution that the mud landfill brings again.
In addition, need to prove, the specific embodiment described in this specification sheets, its prescription, title that technology is named etc. can be different.Allly conceive equivalence or the simple change that described structure, characteristic and principle are done, include in the protection domain of patent of the present invention according to patent of the present invention.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; Only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Though the present invention with embodiment openly as above; But it is not in order to limit protection scope of the present invention; Any technician who is familiar with this technology, change and the retouching in not breaking away from design of the present invention and scope, done all should belong to protection scope of the present invention.
Claims (7)
1. the method for a sludge drying, its process step is:
After a, the agent of will wadding a quilt with cotton with fixed attention configure, be pumped to the mud thickner;
B, the mud of water ratio 96% is delivered to the mud thickner concentrates, make the water ratio of mud, obtain preliminary thickened sludge 88% to 90%;
C, preliminary thickened sludge is delivered to transformation pot;
D, also be delivered to transformation pot after transforming agent, stablizer, reodorant configured, preliminary thickened sludge is stable through transforming, and obtains secondary concentration mud;
E, secondary concentration mud is delivered to pressure filter carries out filter-press dehydration, the filter cake of the water ratio 45% that obtains;
F, warehouse-in after the filter cake fragmentation is stored, accomplish the mummification of mud.
2. the method for sludge drying according to claim 1, it is characterized in that: the described agent of wadding a quilt with cotton with fixed attention is a SEPIGEL 305.
3. the method for sludge drying according to claim 1, it is characterized in that: described transforming agent is the polymeric aluminum molysite, and stablizer is the shale breeze, and reodorant is unslaked lime.
4. the method for sludge drying according to claim 1 and 2, it is characterized in that: the addition of the described agent of wadding a quilt with cotton with fixed attention is 5/1000ths of an initial sludge quality.
5. according to the method for claim 1 or 3 described sludge dryings, it is characterized in that: the addition of described transforming agent is 1.8% of a preliminary thickened sludge, and the addition of stablizer is 2% of a preliminary thickened sludge, and the addition of reodorant is 1.5% of a preliminary thickened sludge.
6. according to the method for claim 1,2 or 3 described sludge dryings, it is characterized in that: in the described whole drying engineering, use the absorption tower to collect and handle the foul smell that produces in the drying process.
7. according to the method for claim 1,2 or 3 described sludge dryings, it is characterized in that: the sewage that produces among described step b and the step e is recovered to sewage work and handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100861001A CN102583953A (en) | 2012-03-28 | 2012-03-28 | Sludge drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100861001A CN102583953A (en) | 2012-03-28 | 2012-03-28 | Sludge drying method |
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| CN102583953A true CN102583953A (en) | 2012-07-18 |
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| CN2012100861001A Pending CN102583953A (en) | 2012-03-28 | 2012-03-28 | Sludge drying method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746479A (en) * | 2016-12-22 | 2017-05-31 | 郑州丽福爱生物技术有限公司 | A kind of sludge dewatering agent and preparation method thereof |
| CN107127210A (en) * | 2017-04-17 | 2017-09-05 | 北京建工环境修复股份有限公司 | A kind of Soil leaching repair system and method |
| CN116002949A (en) * | 2022-12-28 | 2023-04-25 | 浙江筑微科技有限公司 | Sludge treatment and resource production method for domestic sewage plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004160329A (en) * | 2002-11-12 | 2004-06-10 | Terunaito:Kk | Sludge treatment method |
| CN101823825A (en) * | 2010-05-27 | 2010-09-08 | 湖南科技大学 | Sludge dehydrating and drying process method and device |
| CN102212403A (en) * | 2011-05-13 | 2011-10-12 | 江苏欣法环保科技有限公司 | Method and device for preparing formed sludge fuel |
| CN102229464A (en) * | 2011-06-02 | 2011-11-02 | 杭州中威净水材料有限公司 | Preparation and method for drying sludge through deep dehydrating |
-
2012
- 2012-03-28 CN CN2012100861001A patent/CN102583953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004160329A (en) * | 2002-11-12 | 2004-06-10 | Terunaito:Kk | Sludge treatment method |
| CN101823825A (en) * | 2010-05-27 | 2010-09-08 | 湖南科技大学 | Sludge dehydrating and drying process method and device |
| CN102212403A (en) * | 2011-05-13 | 2011-10-12 | 江苏欣法环保科技有限公司 | Method and device for preparing formed sludge fuel |
| CN102229464A (en) * | 2011-06-02 | 2011-11-02 | 杭州中威净水材料有限公司 | Preparation and method for drying sludge through deep dehydrating |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746479A (en) * | 2016-12-22 | 2017-05-31 | 郑州丽福爱生物技术有限公司 | A kind of sludge dewatering agent and preparation method thereof |
| CN107127210A (en) * | 2017-04-17 | 2017-09-05 | 北京建工环境修复股份有限公司 | A kind of Soil leaching repair system and method |
| CN116002949A (en) * | 2022-12-28 | 2023-04-25 | 浙江筑微科技有限公司 | Sludge treatment and resource production method for domestic sewage plant |
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Application publication date: 20120718 |