CN102453579A - Process and device for producing coal by recycling sludge - Google Patents
Process and device for producing coal by recycling sludge Download PDFInfo
- Publication number
- CN102453579A CN102453579A CN2010105305864A CN201010530586A CN102453579A CN 102453579 A CN102453579 A CN 102453579A CN 2010105305864 A CN2010105305864 A CN 2010105305864A CN 201010530586 A CN201010530586 A CN 201010530586A CN 102453579 A CN102453579 A CN 102453579A
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- sludge
- coal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention relates to a process and a device for producing coal by recycling sludge. The device is characterized in that a device main body comprises a sludge dehydrator, a belt conveyer, a material mixing device, a mixing stirrer, a material adding bin, a drying machine, an evaporation water collecting device, a belt conveyer, a sludge bin, a coal powder bin, a coal producing machine, a finished coal conveyer, a cyclone separator, a dust catcher, a draught fan and the like. The process comprises the following steps: collecting the sludge in a sludge concentration pool and carrying out primary concentration; conveying the sludge subjected to primary concentration to the sludge dehydrator by using a sludge pump; after dehydration, adding sawdust, a disinfectant and a catalyst into the material mixing device; after mixing and stirring, placing the sludge into the drying machine until the moisture content of the sludge is reduced to be less than 20%; treating tail gas of the drying machine through using the cyclone separator and the dust catcher, and then conveying to the sludge bin for storage by the belt conveyer; regulating the adding amount of dry sludge by arranging the coal powder bin, adding a solidifying agent and then producing coal in the coal producing machine; and conveying the finished coal to a warehouse for storage by using the finished coal conveyer.
Description
Technical field
The present invention relates to a kind of recycling sludge and utilize coal making process and equipment, be applied to the city sewage sludge reclamation utilization and handle,, belong to the Sludge Disposal Techniques field mud system coal.
Background technology
Along with the urbanization process of China is accelerated, industrial developing rapidly, the increase of urban population, the quantity discharged of urban industry waste water and sewage is increasing, and treatment rate of domestic sewage also improves year by year, and the sludge yield of municipal sewage plant also sharply increases.A large amount of excess sludges will discharge in sewage work, and the mud of enormous amount need be done further processing, if mud can not get reasonable processing, will cause secondary pollution.According to statistics; The thousands of altogether seats of the town sewage treatment facility that puts into operation in the existing whole nation; The annual mud (dry weight) that produces is more than 1,000 ten thousand tons, and annual growth is nearly 10%, and the treatment and disposal expense of sewage sludge is higher; In whole construction costs of wastewater treatment in China factory, what be used to handle mud accounts for 20%～50%.The composition of sewage sludge is very complicated, except that containing a large amount of moisture, also contains a large amount of useful resources.Have multiplely at present for the municipal sludge treatment process, landfill, burning and comprehensive utilization are generally arranged, but before recycling, need carry out pre-treatment, nurse one's health, comprise concentrated, dehydration, drying mud.How to improve the dehydration rate of sludge treatment, and the sterilization aspect, this is the vital task of sludge treatment.Mud through after the mummification can apply to land reclamation, the building materials utilization, and make synthol etc.Contain large amount of organic matter and certain lignocellulose in the mud; All belong to combustiblecomponents; (be equivalent to 0.375Kg mark coal/Kg), the xeothermic value of mud (is equivalent to 0.546Kg mark coal/Kg), be equivalent to meager coal or brown coal from the calorific value meaning to its low heat value about 16MJ/Kg more than 11MJ/Kg; After suitable pre-treatment, can be used as synthetic fuel's raw material fully.Reduce the water ratio of mud, improve its combustionproperty, realize that better industrialization produces the target of fuel.
Summary of the invention
The present invention relates to a kind of recycling sludge and utilize coal making process and equipment, it is characterized in that main body comprises: sludge dewatering equipment, rotary conveyor, mixing of materials device, mixing and blending machine, material add storehouse, drying machine, vaporize water collection device, rotary conveyor, sludge bin, Pulverized Coal Bin, coal making machine, readymade coal transfer roller, cyclonic separator, fly-ash separator, induced draft fan etc.Mud is collected in sludge thickener through after tentatively concentrating; Be transported to sludge dewatering equipment by sludge pump, in the mixing of materials device, add a certain amount of lime, wood chip, sterilizing agent, catalyzer through the dehydration back, mixing is stirred the back and through drying machine moisture percentage in sewage sludge is reduced to below 20%; The tail gas of drying machine is handled through cyclonic separator and fly-ash separator; Be transported in the sludge bin by rotary conveyor then and store, and be furnished with Pulverized Coal Bin, regulate the add-on of dewatered sludge; And behind the adding solidifying agent at coal making machine system coal, the coal of moulding by the readymade coal conveyor delivery to warehouse storage.
Contain carbon in the mud 30%, (be equivalent to 0.714Kg mark coal/Kg), the coal calorific value of making according to the present invention (is equivalent to 0.614Kg mark coal/Kg) to raw coal calorific value 20934KJ/Kg about 18MJ/Kg.The water ratio of mud is in the requirement that just can keep nature below 40%, and the xeothermic value of mud is about 16MJ/Kg.And the present invention relates to a kind of recycling sludge and utilize coal making process and equipment, take into full account effective utilization of wood chip, general timber source mill abandons wood chip, also is a kind of recycling, and the wood chip of interpolation also helps the combustion-supporting of coal, has increased the sedimentation of coal.
The present invention relates to a kind of recycling sludge and utilize coal making process and equipment, exhaust treatment system is set, avoided secondary pollution.
Description of drawings
Fig. 1 utilizes coal making process and device structure synoptic diagram for this recycling sludge
Wherein among the figure:
1-sludge dewatering equipment 2-rotary conveyor 3-mixing of materials device
4-mixing and blending machine 5-material adds storehouse 6-drying machine
7-vaporize water collection device 8-rotary conveyor 9-sludge bin
10-Pulverized Coal Bin 11-coal making machine 12-readymade coal transfer roller
13-cyclonic separator 14-fly-ash separator 15-induced draft fan
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
The present invention relates to a kind of recycling sludge and utilize coal making process and equipment, it is characterized in that main body comprises: sludge dewatering equipment (1), rotary conveyor (2), mixing of materials device (3), mixing and blending machine (4), material add storehouse (5), drying machine (6), vaporize water collection device (7), rotary conveyor (8), sludge bin (9), Pulverized Coal Bin (10), coal making machine (11), readymade coal transfer roller (12), cyclonic separator (13), fly-ash separator (14), induced draft fan (15) etc.Mud is collected in sludge thickener through after tentatively concentrating, and is transported to sludge dewatering equipment (1) by sludge pump, and sludge dewatering equipment (1) adopts sealed centrifuge; Can continuous production; Stable performance is added a certain amount of lime, wood chip, sterilizing agent, catalyzer through the dehydration back in mixing of materials device (3), mixing is stirred (4) back and through drying machine (6) moisture percentage in sewage sludge is reduced to below 20%; The tail gas of drying machine (6) is handled through cyclonic separator (13) and fly-ash separator (14); Be transported in the sludge bin by rotary conveyor then and store, and be furnished with Pulverized Coal Bin, regulate the add-on of dewatered sludge; And make coal at coal making machine (11) behind the adding solidifying agent, the coal of moulding is transported to warehouse storage by readymade coal transfer roller (12).
The existing annual mud (dry weight) that produces is more than 1,000 ten thousand tons; Sludge calorific value on average (is equivalent to 0.375Kg mark coal/Kg) more than 11MJ/Kg; If to adopt this equipment, can annually practice thrift 3,750,000 tons of standard coal equivalents, promptly solve the handling problems of mud; Its social value and economic worth are considerable, are to walk Sustainable development to effective way.
Cinder after the burning also has a lot of purposes, and is as as the use of banketing in paving the way, better stable.
Claims (4)
1. the present invention relates to a kind of recycling sludge and utilize coal making process and equipment, it is characterized in that main body comprises: sludge dewatering equipment (1), rotary conveyor (2), mixing of materials device (3), mixing and blending machine (4), material add storehouse (5), drying machine (6), vaporize water collection device (7), rotary conveyor (8), sludge bin (9), Pulverized Coal Bin (10), coal making machine (11), readymade coal transfer roller (12), cyclonic separator (13), fly-ash separator (14), induced draft fan (15) etc.Mud is collected in sludge thickener through after tentatively concentrating, and is transported to sludge dewatering equipment (1) by sludge pump, and sludge dewatering equipment (1) adopts sealed centrifuge; Can continuous production; Stable performance is added a certain amount of lime, wood chip, sterilizing agent, catalyzer through the dehydration back in mixing of materials device (3), mixing is stirred (4) back and through drying machine (6) moisture percentage in sewage sludge is reduced to below 20%; The tail gas of drying machine (6) is handled through cyclonic separator (13) and fly-ash separator (14); Be transported in the sludge bin by rotary conveyor then and store, and be furnished with Pulverized Coal Bin, regulate the add-on of dewatered sludge; And make coal at coal making machine (11) behind the adding solidifying agent, the coal of moulding is transported to warehouse storage by readymade coal transfer roller (12).
2. recycling sludge according to claim 1 utilizes coal making process and equipment, it is characterized in that described a certain amount of lime and the wood chip of in the mixing of materials device, adding.
3. recycling sludge according to claim 1 utilizes coal making process and equipment, it is characterized in that described interpolation sterilizing agent and catalyzer.
4. recycling sludge according to claim 1 utilizes coal making process and equipment, it is characterized in that described dewatered sludge adds solidifying agent according to a certain percentage at coal making machine system coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105305864A CN102453579A (en) | 2010-11-03 | 2010-11-03 | Process and device for producing coal by recycling sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105305864A CN102453579A (en) | 2010-11-03 | 2010-11-03 | Process and device for producing coal by recycling sludge |
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| Publication Number | Publication Date |
|---|---|
| CN102453579A true CN102453579A (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105305864A Pending CN102453579A (en) | 2010-11-03 | 2010-11-03 | Process and device for producing coal by recycling sludge |
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| CN (1) | CN102453579A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611086A (en) * | 2015-02-16 | 2015-05-13 | 辽宁石油化工大学 | Experimental apparatus for preparing coal from oily sludge |
| CN106118792A (en) * | 2016-06-28 | 2016-11-16 | 卓宇轩 | A kind of sludge synthetic fuel and manufacture method thereof |
| CN106115954A (en) * | 2016-07-27 | 2016-11-16 | 杨炳 | A kind of multi-functional sewage processing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282781A (en) * | 1999-07-29 | 2001-02-07 | 中国科学院广州能源研究所 | Process for preparing briquettes with sludge |
| CN201427921Y (en) * | 2009-05-12 | 2010-03-24 | 黎志光 | Sludge treatment device of urban sewage plant |
-
2010
- 2010-11-03 CN CN2010105305864A patent/CN102453579A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282781A (en) * | 1999-07-29 | 2001-02-07 | 中国科学院广州能源研究所 | Process for preparing briquettes with sludge |
| CN201427921Y (en) * | 2009-05-12 | 2010-03-24 | 黎志光 | Sludge treatment device of urban sewage plant |
Non-Patent Citations (1)
| Title |
|---|
| 许建华: "自来水厂排泥水处理技术的若干问题", 《中国给水排水》, vol. 17, no. 12, 31 December 2001 (2001-12-31), pages 25 - 27 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611086A (en) * | 2015-02-16 | 2015-05-13 | 辽宁石油化工大学 | Experimental apparatus for preparing coal from oily sludge |
| CN106118792A (en) * | 2016-06-28 | 2016-11-16 | 卓宇轩 | A kind of sludge synthetic fuel and manufacture method thereof |
| CN106115954A (en) * | 2016-07-27 | 2016-11-16 | 杨炳 | A kind of multi-functional sewage processing system |
| CN106115954B (en) * | 2016-07-27 | 2019-09-03 | 南京南化建设有限公司 | A kind of multi-functional sewage processing system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Sichuan Stong OMEX Environmental Engineering Co., Ltd. Document name: Notification of Publication of the Application for Invention |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |