CN203807312U - Municipal sludge reduction and innocent treatment system - Google Patents
Municipal sludge reduction and innocent treatment system Download PDFInfo
- Publication number
- CN203807312U CN203807312U CN201420218878.8U CN201420218878U CN203807312U CN 203807312 U CN203807312 U CN 203807312U CN 201420218878 U CN201420218878 U CN 201420218878U CN 203807312 U CN203807312 U CN 203807312U
- Authority
- CN
- China
- Prior art keywords
- incinerator
- municipal sludge
- feed
- tail gas
- drying installation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Treatment Of Sludge (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a municipal sludge reduction and innocent treatment system which comprises a wet sludge feeding granulating device, a drying device, a dry material cabin, an incinerating device, a dedusting device, a tail gas treatment device and a ceramic granule preparation device. The utility model further discloses a municipal sludge reduction and innocent treatment process which is used for treating dried tail gas by a urea/H2O2 solution by a wet process and simultaneously removing gases such as SO2, H2S, NOx and NH3 and absorbing components which are easy to be dissolved in water, so that use of chemical reagents in the subsequent treatment steps is reduced, the temperature of the reaction liquid is reduced, the safety of work is increased, and corrosion to equipment is reduced. Tail gas can be directly discharged and ammonium sulfate can be further recovered without secondary pollution, so that the operating and using costs are relatively low. The dried tail gas and the tail gas of the ceramic granule preparation device return to the system to be effectively utilized, so that not only is the utilization ratio of energy increased, but also the load of the tail gas treatment device is alleviated and the comprehensive operating cost is reduced.
Description
Technical field
The utility model relates to a kind of municipal sludge minimizing, innocuity disposal system.
Background technology
Large, unstable, the easy corruption of sludge yield, foul smelling, containing hazardous and noxious substances such as pathogenic micro-organism and heavy metals, without suitably processing after entered environment, bring secondary pollution can to water body and atmosphere.At present, the method for sludge treatment mainly contains following several: sanitary landfill, dry, burning, compost and Ocean dumping.Wherein dry can to make sludge volume be decreased to original 1/4～1/5, and especially when processing high water content sludge, advantage is more outstanding, and can think dry is key one step of wet sludge reduction, innoxious and recycling; Burning can will reduce more than 90% after the relative mechanical dehydration of sludge volume, is to realize sewage sludge harmlessness, minimizing, stabilization means the most thoroughly.
At present, drying and incinerating integrated technique has become the development trend of sludge disposal, but its technology and equipment investment is large, running cost is high, high-temperature flue gas fails to make full use of, and the gaseous emission problem that causes of sludge drying and incinerating, remains the current key point that breaks through of being difficult to.Some resource technologies that occur recent years are also because processing cost is too high, and some technology is still in the laboratory study stage, are difficult to large-scale promotion application in actual production.(patent No. CN201010149945.1 in Chinese utility model patent, a kind of municipal sludge drying and incineration system is disclosed publication number CN101813316A), the exhaust gas processing device of this utility model adopts activated carbon adsorber and alkali liquor absorption tower, there is still open question in active carbon adsorption wherein, charcoal absorption performance degradation rule for example, temperature, water etc. is on the top condition that affects rule and desulphurization denitration of charcoal absorption performance etc., cause this method desulfurization capacity low, remove that speed is slow, regenerative process energy consumption is high; Alkali absorption method exists alkali lye to store, transportation is difficult for, exist and reveal hidden danger and to shortcomings such as the corrodibility of equipment are large.This utility model not only energy consumption and running cost high, and vent gas treatment is thorough not, is prone to secondary pollution.Therefore, develop a kind of set technique and can reduce system synthesis running cost, improve the utilization ratio of the energy, and make the flue gas pollutant of sludge drying and incinerating generation reach zero release, there is important using value.
Summary of the invention
For above-mentioned prior art, a kind of municipal sludge minimizing, innocuity disposal system and treatment process, for the treatment of municipal sludge, the utlity model has that energy utilization rate is high, system synthesis running cost is low, the advantage such as non-secondary pollution, whole treating processes are succinct.
The utility model is achieved through the following technical solutions:
Municipal sludge minimizing, an innocuity disposal system, its structure comprises: wet mud feed prilling granulator, drying installation, siccative storehouse, incinerator, cleaning apparatus, exhaust gas processing device and haydite preparation facilities, wherein,
Described cleaning apparatus is two-stage dust removal, comprises tornado dust collector (first step) and electric precipitator (second stage);
Described exhaust gas processing device is secondary, comprises absorption tower (first step) and packing tower (second stage);
Described drying installation opening for feed is connected with wet mud feed prilling granulator; Drying installation discharge port is connected with siccative storehouse opening for feed, drying installation air outlet is connected with tornado dust collector opening for feed, tornado dust collector discharge port is connected with siccative storehouse, tornado dust collector air outlet is connected with electric precipitator opening for feed, electric precipitator discharge port is connected with absorption tower, and absorption tower is connected with packing tower; Siccative bin discharge port external is connected with incinerator opening for feed, haydite preparation facilities opening for feed respectively; Incinerator air outlet is connected with drying installation blast inlet, haydite preparation facilities blast inlet respectively, and haydite preparation facilities air outlet is connected with incinerator blast inlet; Absorption tower air outlet is connected with incinerator blast inlet.
Described wet mud feed prilling granulator comprises sludge bin, defeated dredge pump, dredging tube and the broken mud device connecting successively, and during work, mud enters drying installation through sludge bin, defeated dredge pump, dredging tube, broken mud device successively.
Described drying installation is selected from revolving drum drier, conveyor dryer, paddle-dryer, tray drier or fluid bed dryer.
Described incinerator is fluidized bed incinerator.
Described haydite preparation facilities comprises tablets press and calcining kiln; for existing conventional products in prior art; principle of work is: dewatered sludge, sludge ash add silicates material again; mix, be then placed in tablets press extrusion molding, naturally dry; with 8～10 ℃/min speed, heat up; then at 900～1000 ℃, be incubated 20～40min, furnace cooling, obtains haydite.Gained haydite can be used as the filler of packing tower.
Further, the pipeline that described absorption tower is connected with incinerator is provided with recirculation blower.
In described absorption tower, absorption liquid is housed, described absorption liquid is by urea, H
2o
2with the solution that water forms, wherein, the mass concentration of urea is 1～10%, H
2o
2mass concentration be 0.05～0.5%.
In described packing tower, be provided with filler, the haydite that this filler can be prepared for haydite preparation facilities.
Municipal sludge minimizing, a harmless treatment process, workflow is as follows:
(1) moisture 70%～90% mud is after wet mud feed prilling granulator granulation is pulverized, enter drying installation, in drying installation and from the flue gas direct contact heat transfer of incinerator, by controlling the residence time of mud in drying installation, be dried to the moisture of requirement;
(2) dried mud is discharged by drying installation discharge port, is delivered to siccative storehouse; Meanwhile, the moisture of separating out after sludge-drying and part dewatered sludge are carried and are entered tornado dust collector by the hot flue gas in drying installation, and after tornado dust collector are processed, gas enters electric precipitator, and the collected dry powder of tornado dust collector is delivered to siccative storehouse;
(3) mud one tunnel that siccative storage is deposited is sent into incinerator and is burned, and drying installation is directly sent on high-temperature flue gas one tunnel after burning, and another road enters haydite preparation facilities; Another road of mud that siccative storage is deposited is sent into and is entered haydite preparation facilities and prepare haydite;
(4) dry moisture of separating out and part dewatered sludge are successively after process on electric precipitator and absorption tower, and a part is taken out to draw as secondary air by recirculation blower and returned to incinerator, another part after packing tower is processed, discharge system;
(5) tail gas of haydite preparation facilities returns to incinerator as secondary air, and haydite is used as the filler of packing tower.
In described step (2), described dried mud temperature is 80～110 ℃.
In described step (3), high-temperature flue-gas after burning is at 750～1100 ℃, its high-temperature zone at incinerator at least stops after 2 seconds, 50～70% high-temperature flue gas enters drying installation, after entering, this high-temperature flue gas is chilled to below 300 ℃, and 30～50% high-temperature flue gas enters haydite preparation facilities.
In described step (3), the mud 70～90% that siccative storage is deposited enters incinerator and burns, and 10～30% mud is sent into haydite preparation facilities and prepared haydite;
In described step (4), described flue-gas temperature after process on absorption tower is 70～100 ℃, 50～70% with air mixed after send incinerator back to, surplus is discharge system after packing tower is processed.
In described step (4), the absorption liquid in described absorption tower is by urea, H
2o
2with the solution that water forms, wherein, the mass concentration of urea is 1～10%, H
2o
2mass concentration be 0.05～0.5%.The utility model adopts urea/H
2o
2solution, as tail gas absorption liquid, can be eliminated SO simultaneously
2deng sour gas and NO
xdeng alkaline gas.
In described step (4), after the absorption liquid spray tail gas in described absorption tower, extract 70～90% out be back in absorption tower from tower bottom, residue 10～30% enters ammonium sulfate recovery system reclaim(ed) sulfuric acid ammonium.
The structure of above-mentioned not detailed description, technique etc., be routine techniques of the prior art, repeats no more.
Municipal sludge minimizing of the present utility model, innocuity disposal system and treatment process, adopt urea/H
2o
2the dried tail gas of solution wet processing, while desulphurization denitration, urea/H
2o
2solution can absorb composition soluble in water in tail gas, can also be for tail gas be except water for cooling, not only composition soluble in water is absorbed, reduced the use of the chemical reagent in subsequent processing steps, and the problem of the excess Temperature producing while having avoided sour gas and volatile organic compounds gas and tool strong oxidizing property and alkaline spray solution generation chemical reaction, the security while having strengthened work.Urea/H
2o
2solution can remove SO simultaneously
2, H
2s, NO
xand NH
3deng gas, urea/H
2o
2the pH value of solution is 5～9, and non-strong acid and strong base has reduced the corrosion to equipment.Tail gas after processing can directly discharge.Absorption liquid waste liquid is recyclable ammonium sulfate after treatment, and the generation of non-secondary pollution both can be controlled the discharge of pollutent, can recycle resource again, and operation use cost is lower; The tail gas of dried tail gas and haydite preparation facilities retrieval system effectively utilizes, both improve the utilization ratio of the energy, alleviated again the load of exhaust gas processing device, reduced integrated operation expense, be a technology with good development prospect, can large-scale promotion use.
The beneficial effects of the utility model are as follows:
(1) utilize drying sludge tail gas and the reutilization technology of preparing haydite tail gas, both improved the utilization ratio of the energy, alleviated again the load of exhaust gas processing device, reduced integrated operation expense;
(2) utilize urea/H
2o
2wet flue gas simultaneously desulfurizing and denitrifying process, as tail gas treatment process, is eliminated SO simultaneously
2and NO
xdeng gas, absorption liquid is recyclable ammonium sulfate after treatment, avoids occurring secondary pollution;
(3) utilize mud to prepare haydite, haydite, as the filler of exhaust gas processing device, has been realized the recycling of mud.
Accompanying drawing explanation
Fig. 1 is the structure &processes schema of municipal sludge minimizing of the present utility model, innocuity disposal system.
Wherein, 1, sludge bin; 2, defeated dredge pump; 3, drying installation; 4, tornado dust collector; 5, electric precipitator; 6, incinerator; 7, haydite preparation facilities; 8, siccative storehouse; 9, recirculation blower; 10, absorption tower; 11, packing tower; Arrow represents the flow direction of material.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1 municipal sludge minimizing, innocuity disposal system and treatment process
Municipal sludge minimizing, an innocuity disposal system, as shown in Figure 1, its structure comprises: wet mud feed prilling granulator, drying installation 3, siccative storehouse 8, incinerator 6, cleaning apparatus, exhaust gas processing device and haydite preparation facilities 7, wherein,
Described wet mud feed prilling granulator comprises sludge bin 1, defeated dredge pump 2, dredging tube and the broken mud device connecting successively, and during work, mud enters drying installation 3 through sludge bin 1, defeated dredge pump 2, dredging tube, broken mud device successively.
Described drying installation 3 is fluid bed dryer.
Described incinerator 6 is fluidized bed incinerator.
Described cleaning apparatus comprises tornado dust collector 4 and electric precipitator 5;
Described exhaust gas processing device comprises absorption tower 10 and packing tower 11;
Described drying installation 3 opening for feeds are connected with wet mud feed prilling granulator; Drying installation 3 discharge ports are connected with siccative storehouse 8 opening for feeds, drying installation 3 air outlets are connected with tornado dust collector 4 opening for feeds, tornado dust collector 4 discharge ports are connected with siccative storehouse 8, tornado dust collector 4 air outlets are connected with electric precipitator 5 opening for feeds, electric precipitator 5 discharge ports are connected with absorption tower 10, and absorption tower 10 is connected with packing tower 11; Siccative storehouse 8 discharge ports are connected with incinerator 6 opening for feeds, haydite preparation facilities 7 opening for feeds respectively; Incinerator 6 air outlets are connected with drying installation 3 blast inlets, haydite preparation facilities 7 blast inlets respectively, and haydite preparation facilities 7 air outlets are connected with incinerator 6 blast inlets; Absorption tower 10 air outlets are connected (pipeline of connection is provided with recirculation blower 9) with incinerator 6 blast inlets.
Described haydite preparation facilities comprises tablets press and calcining kiln; principle of work is: dewatered sludge, sludge ash add silicates material again; mix; then be placed in tablets press extrusion molding; naturally dry, with 8～10 ℃/min speed, heat up, then at 900～1000 ℃, be incubated 20～40min; furnace cooling, obtains haydite.Gained haydite can be used as the filler of packing tower.
The technique of utilizing above-mentioned municipal sludge minimizing, innocuity disposal system lignin-sludge, concrete steps are as follows:
(1) moisture 70%～90% mud by sludge bin 1, defeated dredge pump 2 after, enter drying installation 3, in drying installation 3 and from the flue gas direct contact heat transfer of incinerator 6, by controlling the residence time of mud in drying installation 3, be dried to the moisture of requirement;
(2) dried mud is discharged by drying installation 3 discharge ports, is delivered to siccative storehouse 8 together with the dry powder of collecting with tornado dust collector 4;
(3) mud one tunnel that siccative storehouse 8 stores is sent into incinerator 8 and is burned, and drying installation 3 is directly sent on high-temperature flue gas one tunnel after burning, and another road enters haydite preparation facilities 7; Another road of mud that siccative storehouse 8 stores is sent into and is entered haydite preparation facilities 7 and prepare haydite;
(4) dry moisture and part dewatered sludge of separating out carried by the hot flue gas in drying installation 3, and after electric precipitator 5 and water wash column 10, a part is taken out to draw as secondary air by recirculation blower 9 and returned to incinerator 6, and another part is through packing tower 11 discharge systems;
(5) tail gas of haydite preparation facilities 7 returns to incinerator 6, and haydite is used as the filler of packing tower 11.
In described step (2), described dried mud temperature is 80～110 ℃.
In described step (3), high-temperature flue-gas after burning is at 750～1100 ℃, its high-temperature zone at incinerator at least stops after 2 seconds, 50～70% high-temperature flue gas enters drying installation, after entering, this high-temperature flue gas is chilled to below 300 ℃, and 30～50% high-temperature flue gas enters haydite preparation facilities.
In described step (3), the mud 70～90% that siccative storage is deposited enters incinerator and burns, and 10～30% mud is sent into haydite preparation facilities and prepared haydite;
In described step (4), described flue-gas temperature after process on absorption tower is 70～100 ℃, 50～70% with air mixed after send incinerator back to, surplus is discharge system after packing tower is processed.
In described step (4), the absorption liquid in described absorption tower is by urea, H
2o
2with the solution that water forms, wherein, the mass concentration of urea is 1～10%, H
2o
2mass concentration be 0.05～0.5%.The utility model adopts urea/H
2o
2solution, as tail gas absorption liquid, can be eliminated SO simultaneously
2deng sour gas and NO
xdeng alkaline gas.
In described step (4), after the absorption liquid spray tail gas in described absorption tower, extract 70～90% out be back in absorption tower from tower bottom, residue 10～30% enters ammonium sulfate recovery system reclaim(ed) sulfuric acid ammonium.
Claims (7)
1. municipal sludge minimizing, an innocuity disposal system, is characterized in that: comprising: wet mud feed prilling granulator, drying installation, siccative storehouse, incinerator, cleaning apparatus, exhaust gas processing device and haydite preparation facilities, wherein,
Described cleaning apparatus comprises tornado dust collector and electric precipitator;
Described exhaust gas processing device comprises absorption tower and packing tower;
Described drying installation opening for feed is connected with wet mud feed prilling granulator; Drying installation discharge port is connected with siccative storehouse opening for feed, drying installation air outlet is connected with tornado dust collector opening for feed, tornado dust collector discharge port is connected with siccative storehouse, tornado dust collector air outlet is connected with electric precipitator opening for feed, electric precipitator discharge port is connected with absorption tower, and absorption tower is connected with packing tower; Siccative bin discharge port external is connected with incinerator opening for feed, haydite preparation facilities opening for feed respectively; Incinerator air outlet is connected with drying installation blast inlet, haydite preparation facilities blast inlet respectively, and haydite preparation facilities air outlet is connected with incinerator blast inlet; Absorption tower air outlet is connected with incinerator blast inlet.
2. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: described wet mud feed prilling granulator comprises sludge bin, defeated dredge pump, dredging tube and the broken mud device connecting successively.
3. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: described drying installation is selected from revolving drum drier, conveyor dryer, paddle-dryer, tray drier or fluid bed dryer.
4. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: described incinerator is fluidized bed incinerator.
5. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: the pipeline that described absorption tower is connected with incinerator is provided with recirculation blower.
6. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: in described absorption tower, absorption liquid is housed, described absorption liquid is by urea, H
2o
2with the solution that water forms, wherein, the mass concentration of urea is 1～10%, H
2o
2mass concentration be 0.05～0.5%.
7. municipal sludge minimizing according to claim 1, innocuity disposal system, is characterized in that: in described packing tower, be provided with filler, this filler is haydite prepared by haydite preparation facilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420218878.8U CN203807312U (en) | 2014-04-30 | 2014-04-30 | Municipal sludge reduction and innocent treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420218878.8U CN203807312U (en) | 2014-04-30 | 2014-04-30 | Municipal sludge reduction and innocent treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807312U true CN203807312U (en) | 2014-09-03 |
Family
ID=51446097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420218878.8U Expired - Fee Related CN203807312U (en) | 2014-04-30 | 2014-04-30 | Municipal sludge reduction and innocent treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964656A (en) * | 2014-04-30 | 2014-08-06 | 山东天力干燥股份有限公司 | Reduction and harmlessness treating system and treating process for municipal sludge |
| CN104879755A (en) * | 2015-04-23 | 2015-09-02 | 四川和鼎环保工程有限责任公司 | Waste incineration system |
| CN106439843A (en) * | 2016-09-08 | 2017-02-22 | 南京中特化工动力设备有限公司 | Harmless treatment process for unrecyclable wastes in petrochemical industry |
| CN114656123A (en) * | 2022-03-15 | 2022-06-24 | 广东能源集团科学技术研究院有限公司 | Sludge co-combustion method for realizing high efficiency, energy conservation and reduction of dioxin emission |
-
2014
- 2014-04-30 CN CN201420218878.8U patent/CN203807312U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964656A (en) * | 2014-04-30 | 2014-08-06 | 山东天力干燥股份有限公司 | Reduction and harmlessness treating system and treating process for municipal sludge |
| CN103964656B (en) * | 2014-04-30 | 2015-11-18 | 山东天力干燥股份有限公司 | A kind of municipal sludge minimizing, innocuity disposal system and treatment process |
| CN104879755A (en) * | 2015-04-23 | 2015-09-02 | 四川和鼎环保工程有限责任公司 | Waste incineration system |
| CN106439843A (en) * | 2016-09-08 | 2017-02-22 | 南京中特化工动力设备有限公司 | Harmless treatment process for unrecyclable wastes in petrochemical industry |
| CN106439843B (en) * | 2016-09-08 | 2019-03-12 | 南京中特化工动力设备有限公司 | Petrochemical industry not recovering discarded material harmless treatment process |
| CN114656123A (en) * | 2022-03-15 | 2022-06-24 | 广东能源集团科学技术研究院有限公司 | Sludge co-combustion method for realizing high efficiency, energy conservation and reduction of dioxin emission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103964656B (en) | A kind of municipal sludge minimizing, innocuity disposal system and treatment process | |
| CN110560019A (en) | efficient, energy-saving and environment-friendly waste activated carbon regeneration method | |
| CN101342459A (en) | Exhuast gas desulfurization, recycle and treatment method and apparatus | |
| CN110756033A (en) | Deep purification treatment system and process for waste incineration power station flue gas | |
| CN101993181B (en) | Method for dehydration and recycling of continuous dyeing sludge | |
| CN101822942B (en) | Wet purification method for dioxin and heavy metals in solid waste incineration gas | |
| CN106439843B (en) | Petrochemical industry not recovering discarded material harmless treatment process | |
| CN102114386B (en) | Desulfurization and demercuration method for flue gas | |
| CN203886406U (en) | Tail gas purification device of circulating fluid bed garbage incinerator | |
| CN110665352A (en) | Dry desulfurization, denitrification and dust removal device and method for low-sulfur flue gas in cement kiln tail | |
| CN203807312U (en) | Municipal sludge reduction and innocent treatment system | |
| CN211358316U (en) | Low-sulfur flue gas dry desulfurization denitration dust collector in cement kiln tail | |
| CN113587117B (en) | System and method for innocent treatment of sludge | |
| CN111499348A (en) | Production process of sintered brick | |
| CN112973408B (en) | Treatment process for purifying flue gas by resource utilization of copper-containing waste | |
| CN212396274U (en) | Waste incineration flue gas near-zero emission treatment system | |
| CN103435243B (en) | Parallel sludge low-temperature drying system utilizing waste heat of flue gas | |
| CN116422311A (en) | Thermal regeneration device and regeneration method for activated carbon | |
| CN111589260A (en) | Waste incineration flue gas near-zero emission treatment system and process | |
| CN104028088A (en) | Method for reducing NOx in smoke through ammonia source of household garbage | |
| CN104907317A (en) | Integrated harmless dead livestock treatment system and process thereof | |
| CN201791470U (en) | Dry-method suspension bed type flue gas desulfurization system for small and medium sized coal burning boiler | |
| CN215863435U (en) | Industrial waste's processing apparatus | |
| CN201454354U (en) | Semi-dry smoke pollutant removing device | |
| CN204769831U (en) | Birds that dies of illness poultry innocent treatment integrated system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20180430 |