CN204125311U - A kind of two-section type mud gasification treatment unit - Google Patents
A kind of two-section type mud gasification treatment unit Download PDFInfo
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- CN204125311U CN204125311U CN201420427297.5U CN201420427297U CN204125311U CN 204125311 U CN204125311 U CN 204125311U CN 201420427297 U CN201420427297 U CN 201420427297U CN 204125311 U CN204125311 U CN 204125311U
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Abstract
The utility model discloses a kind of two-section type mud gasification treatment unit, comprise sludge dewatering unit, moulded coal production unit and sludge incineration processing unit, mud after dehydration and coal dust are mixed and made into moulded coal and drop into the pyrolysis of two-section type gasification furnace high-temperature by the utility model, make full use of sludge incineration to produce reducing gas, the reducing gas of high temperature also dehydrates and anaerobic destructive distillation further to moulded coal simultaneously, the dry distillation gas that retort process produces again is introduced gasification stove and is participated in burning, eliminate the hazardous and noxious substances in dry distillation gas completely, simultaneously, the copper existed in mud, zinc, plumbous, chromium, the not labile harmful metal elements such as arsenic also to enter in the lime-ash of molten and at cooling after fixing, meet the requirement of safe handling.
Description
Technical field
The utility model relates to a kind for the treatment of process of mud, refers more particularly to a kind of two-section type mud gasification treatment unit of energy-conserving and environment-protective.
Background technology
Mud particularly in printing and dyeing sludge or paper mill sludge containing a large amount of natural and regenerated fibers, dyestuff, greasy dirt, dust etc., every kilogram of mud contains the heat energy of 3000 kilocalories in the dry state, can be used as fuel to be completely used, if application publication number is CN103666504, name is called the Chinese utility model patent of Sludge drying/pyrolysis/gasintegratedincineratitreatment integratedincineratitreatment treatment system, disclose a kind of Sludge drying/pyrolysis/gasintegratedincineratitreatment integratedincineratitreatment treatment system, comprise firing system, dehumidification system, pyrolysis gasification system and flue gas purification system, the flue gas that sludge incineration pyrolytic gasification produces is processed by purification system, although this treatment system running cost is lower, minimizing, stabilization, but burning produce the poisonous and harmful goods and materials such as Dioxins still cannot remove completely, secondary still can be caused to endanger environment.
The problem of present restriction sludge incineration is: the sludge moisture content after mechanical dehydration process is very high, about 50%, dehydrated sludge is made to be difficult to organize good burning, and conventional combustion manner is difficult to eliminate toxic and harmful and the lime-ash that fiber burns generation, special as very harmful in Dioxins, and follow-up environmental protection treatment there is no cost-effective method and removes poisonous and harmful goods and materials, this two problems cause present mud cannot effectively process or processing cost high.
Utility model content
The toxic and harmful and the higher technical problem of processing cost that burn and produce cannot be eliminated completely when the utility model mainly solves existing sludge incineration process; Provide a kind of energy-conserving and environment-protective and the cheap two-section type mud gasification treatment unit of processing cost.
In order to solve the technical problem of above-mentioned existence, the utility model mainly adopts following technical proposals:
A kind of two-section type mud gasification treatment unit of the present utility model, comprises sludge dewatering unit, moulded coal production unit and mud gasification processing unit, and described sludge dewatering unit is used for sludge dewatering and makes sludge moisture content be down to less than 50%; Described moulded coal production unit be by dehydration after mud and coal dust be mixed in proportion and be pressed into moulded coal, described mud gasification processing unit comprises two-section type gasification stove, described moulded coal is sent in two-section type gasification stove after high temperature pyrolysis, is formed lime-ash and reducing gas, adopt two-section type gasification stove can shorten the path of drying and carbonization process and high-temp combustion process, save energy, temperature controls accurately reliable.
As preferably, described two-section type gasification stove is divided into low-temperature pyrolysis section and high-temperature gasification section from top to bottom, the body of heater top of two-section type gasification stove is provided with dog-house, described low-temperature pyrolysis section comprises the drying layer on upper strata and the destructive distillation layer of lower floor, moulded coal in drying layer by the effect of high temperature reduction coal gas drying and dehydrating, pyrogenation and carbonization in destructive distillation layer, corresponding generation dry distillation gas and carbonization at low temperature moulded coal, carbonization at low temperature moulded coal is displaced downwardly to high-temperature gasification section and proceeds pyrolytic reaction, high-temperature gasification section comprises the reducing zone on upper strata, middle zone of combustion and the ash bed of lower floor, the carbonization at low temperature moulded coal being displaced downwardly to high-temperature gasification section high temperature pyrolysis and gasification produce reducing gas in reducing zone and zone of combustion, finally form lime-ash, the ash bed place of body of heater is provided with the entrance of vaporized chemical, vaporized chemical comprises air and full Heshui steam, vapour content in vaporized chemical is adjustable, burn together with dry distillation gas with carbonization at low temperature moulded coal in the bottom that vaporized chemical causes zone of combustion, sufficient combustion and temperature-controllable, carbonization at low temperature moulded coal continues to carry out pyrolytic reaction in high-temperature gasification section, finally form reducing gas and consolidation shape lime-ash, lime-ash is discharged from furnace bottom ash discharging hole, and clean flammable reducing gas leads to energy equipment as fuel, partial reduction coal gas then rises to low-temperature pyrolysis section and carries out destructive distillation and drying to moulded coal, two-section type gasification stove is by the drying and dehydrating of moulded coal, destructive distillation and high temperature pyrolysis and gasification are combined, high temperature reduction coal gas is utilized to carry out destructive distillation as thermal barrier to moulded coal and dehydrate, and the moisture content gasification combustion-supporting made full use of in moulded coal, improve energy saving and the convenience of the process of mud gasification.
As preferably, dry distillation gas transfer lime is provided with between the low-temperature pyrolysis section of described gasification stove and high-temperature gasification section, one end of dry distillation gas transfer lime is communicated with the dead level of upper of furnace body, the other end of dry distillation gas transfer lime then communicates with body of heater hypomere zone of combustion, dry distillation gas causes zone of combustion by transfer lime and carbonization at low temperature moulded coal burns simultaneously, simultaneously, undecomposed organic toxic objectionable impurities contained in dry distillation gas resolves into inorganics completely after high-temp combustion, burn by the dry distillation gas produced in moulded coal low-temperature pyrolysis is introduced in zone of combustion, both make use of the calorific value of combustiblematerials in dry distillation gas, by high temperature, the organic toxic objectionable impurities in dry distillation gas is thoroughly decomposed again, the particularly decomposition of Dioxins, reach environmental protection and energy-conservation requirement.
As preferably, described dry distillation gas transfer lime being also provided with frequency converting induced draft fan for controlling air quantity and the blast of dry distillation gas, making the upper furnace of gasification stove keep pressure-fired, preventing retort section from sucking air, and set off an explosion.
As preferably, the middle part of described dry distillation gas transfer lime is vertical structure, precipitate to prevent coal tar in transfer lime or gather, standpipe can prevent the coal tar in dry distillation gas from separating out because change in flow or temperature reduce, precipitating and bring potential safety hazard, simultaneously, the thermal insulation layer that transfer lime covers, can reduce the temperature drop of dry distillation gas in course of conveying to greatest extent, makes dry distillation gas temperature all the time higher than the gasification temperature of coal tar.
As preferably, described gasification stove is positioned at body of heater outside week along being provided with dry distillation gas annular isocon and communicating with described dry distillation gas transfer lime, furnace body inside is evenly equipped with circumferential weld, described circumferential weld is provided with Anti-blocking structure, destructive distillation combustion gas is injected into zone of combustion by circumferential weld and carbonization at low temperature moulded coal burns simultaneously, and circumferential weld Anti-blocking structure can prevent dry distillation gas import from being blocked by burnt or lime-ash.
As preferably, the pipeline of described vaporized chemical is also provided with vapour content controller, for detecting and regulating the vapour content in vaporized chemical, in vaporized chemical, add full Heshui steam carry out water vapor amount contained in supplementary original moulded coal, the heat energy of water vapor both Absorbable rod zone of combustion, make the temperature of zone of combustion remain on about 1200 DEG C, moisture content decomposes the H produced simultaneously
2and CO, again can be combustion-supporting, improve heat utilization rate.
Based on the treatment process of above two-section type mud gasification treatment unit, its step is as follows:
1) mechanical sludge dewatering higher for water content is less than 50% to water content;
2) mud after dehydration and coal dust are mixed in proportion makes moulded coal;
3) moulded coal drops in burner hearth from the top dog-house of gasification stove, first in the low-temperature pyrolysis section of the epimere stove of gasification stove, drying and destructive distillation is carried out, produce dry distillation gas and carbonization at low temperature moulded coal, low-temperature pyrolysis section comprises drying layer and destructive distillation layer, carbonization at low temperature moulded coal is wherein displaced downwardly to the high-temperature gasification section of the hypomere stove of gasification stove, dry distillation gas is then drawn from the epimere stove dead level of gasification burner hearth, carries out high-temp combustion in the high-temperature gasification section being delivered to the hypomere stove of gasification stove after frequency converting induced draft fan adjust flux and blast;
4) carbonization at low temperature moulded coal proceeds pyrolytic gasification in high-temperature gasification section, high-temperature gasification section forms reducing zone, zone of combustion and ash bed from top to bottom, simultaneously, the vaporized chemical containing air and water vapor introduced bottom zone of combustion participates in the burning of carbonization at low temperature moulded coal and dry distillation gas, vapour content in vaporized chemical and dry distillation gas can directly be used for regulating and the temperature of control combustion layer and keeps temperature of combustion to stablize, raising heat utilization rate;
5) the carbonization at low temperature moulded coal after high-temp combustion thoroughly changes into inorganics and forms consolidation shape lime-ash and discharges from furnace bottom ash discharging hole, and tar in dry distillation gas and objectionable impurities are also thoroughly decomposed by high temperature, finally formed not containing any organism composition, pure and meet the reducing gas of environmental requirement and lead to can equipment;
Mud after preliminary hydro-extraction and coal dust are mixed and made into moulded coal and drop into gasification stove high temperature pyrolysis, gasification stove makes full use of the reducing gas that calorific value in mud and moulded coal are produced by high-temp combustion, the reducing gas of high temperature also further dehydrates and anaerobic destructive distillation the moulded coal dropped into simultaneously, the moulded coal destructive distillation making water content higher is formed substantially not containing the carbonization at low temperature moulded coal of organic hazardous and noxious substances, the high-temp combustion layer that the water vapour that the dry distillation gas mixed type coal drying and dehydrating containing more organic toxic objectionable impurities that retort process produces produces is introduced into gasification stove together participates in burning, organic toxic objectionable impurities in dry distillation gas, particularly the material such as Dioxins and Dioxins precursor can resolve into inorganics completely, the reducing gas finally formed is pure and meet environmental requirement, simultaneously, the copper existed in mud, zinc, plumbous, chromium, the not labile heavy metal element such as arsenic also to enter in the lime-ash of molten and at cooling after fixing, meet the requirement of safe handling.
As preferably, the Mixing ratio by weight of described mud and coal dust is 0.8 ~ 1.2: 2, and rational ratio of mixture can ensure the conversion normally and efficiently of gasification stove.
As preferably, the destructive distillation layer temperature of described low-temperature pyrolysis section remains on 400 DEG C ~ 550 DEG C, and the temperature out of described dry distillation gas remains on 300 DEG C ~ 350 DEG C, reducing zone temperature in described high-temperature gasification section remains on 600 DEG C ~ 1100 DEG C, zone of combustion temperature remains on 1100 DEG C ~ 1200 DEG C, organism in moulded coal, water, volatile matter gets final product whole pyrolytic gasification when being heated to about 420 DEG C, separate from moulded coal and enter in dry distillation gas, for ensureing to be separated thoroughly, destructive distillation stratotype coal export temperature is set as about 550 DEG C, can meet the decomposition requirement of the materials such as various organism fully, and reducing gas enters in low-temperature pyrolysis section as thermal barrier that is dry and destructive distillation with about 600 DEG C, due to the burning through 1200 DEG C of high temperature, oxygen is not had in reducing gas, make moulded coal can carry out destructive distillation safely in the environment of anaerobic, the hazardous and noxious substances produced enters in dry distillation gas, and hardly containing organism in the carbonization at low temperature moulded coal formed, and the temperature of combustion of zone of combustion remains on about 1200 DEG C, at this temperature, any organism all thoroughly resolves into carbonic acid gas, the inorganics of water and so on, can not containing organic toxic objectionable impuritiess such as Dioxins, the reducing gas that the pyrolysis of carbonization at low temperature moulded coal produces is pure inorganics combustible gas, the fuel meeting environmental requirement, and finally containing copper, zinc, plumbous, chromium, the lime-ash of the toxic heavy metal elements such as arsenic is molten and after cooling, forms cured article, also the requirement of safe handling is met.
The beneficial effects of the utility model are: adopt the mud after by preliminary hydro-extraction and coal dust to be mixed and made into moulded coal and drop into gasification stove high temperature pyrolysis, gasification stove makes full use of the calorific value in mud and produces reducing gas through high-temp combustion, the reducing gas of high temperature also dehydrates and anaerobic destructive distillation the moulded coal dropped into simultaneously, the moulded coal making water content higher is formed not containing organic carbonization at low temperature moulded coal about 500 DEG C destructive distillation, what retort process produced mix containing the dry distillation gas of more hazardous and noxious substances the high-temperature gasification section of also again introducing gasification stove with the water vapour that moulded coal drying and dehydrating produces and vaporized chemical participates in burning jointly, organic toxic objectionable impurities in dry distillation gas, particularly the material such as Dioxins and Dioxins precursor can resolve into inorganics completely under the high temperature of 1200 DEG C, the reducing gas finally formed is pure and meet environmental requirement, simultaneously, the copper existed in mud, zinc, plumbous, chromium, the not labile toxic heavy metal element such as arsenic also to enter in the lime-ash of molten and at cooling after fixing, meet the requirement of safe handling.
Accompanying drawing explanation
Fig. 1 is the process schematic representation of two-section type mud gasification treatment unit of the present utility model.
Fig. 2 is the structural representation of two-section type gasification stove of the present utility model.
1. sludge dewatering units in figure, 2. moulded coal production unit, 3. two-section type gasification stove, 31. drying layers, 32. destructive distillation layers, 33. reducing zones, 34. zone of combustion, 35. ash beds, 36. dog-houses, 4. vaporized chemical transfer lime, 41. vapour content controllers, 5. dry distillation gas transfer lime, 51. frequency converting induced draft fans, 52. annular isocon, 6. purifying treating units.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of two-section type mud gasification treatment unit of the present embodiment, as shown in Figure 1, comprise sludge dewatering unit 1, moulded coal production unit 2 and mud gasification processing unit, mud forced dehydration makes sludge moisture content be down to less than 50% by sludge dewatering unit mechanically, moulded coal production unit by mud and the coal dust after dehydration in 1: 2 ratio mix and be pressed into moulded coal, and send into mud gasification processing unit and carry out gasification process, mud gasification processing unit comprises two-section type gasification stove 3, as shown in Figure 2, two-section type gasification stove is divided into low-temperature pyrolysis section and high-temperature gasification section two regions from top to bottom, the body of heater top of gasification stove is provided with dog-house 36, moulded coal can drop in the burner hearth of gasification stove from dog-house, low-temperature pyrolysis section can be divided into the drying layer 31 on upper strata and the destructive distillation layer 32 of lower floor, first moulded coal dewaters at the drying layer inner drying of low-temperature pyrolysis section, and destructive distillation produces dry distillation gas and carbonization at low temperature moulded coal in destructive distillation layer, the high temperature reduction coal gas of about 600 DEG C provides the energy needed for dry and destructive distillation as thermal barrier, the carbonization at low temperature moulded coal formed is displaced downwardly to high-temperature gasification section, high-temperature gasification section is divided into the reducing zone 33 on upper strata, middle zone of combustion 34 and the ash bed 35 of lower floor, be displaced downwardly to the carbonization at low temperature moulded coal of high-temperature gasification section at reducing zone continuation high temperature pyrolysis and gasification and in zone of combustion combustion, the thermograde of reducing zone is 600 DEG C ~ 1100 DEG C, the temperature of combustion of zone of combustion is 1200 DEG C, form lime-ash after carbonization at low temperature moulded coal pyrolytic gasification to discharge from ash discharging hole, the high temperature reduction coal gas generated then is drawn from high-temperature gasification section top, a part leads to purifying treating unit 6 and form pure combustible gas after depickling process, be delivered to energy equipment, another part reducing gas then rise pass through low-temperature pyrolysis section to drop into moulded coal carry out drying and dehydrating and destructive distillation, the entrance of vaporized chemical transfer lime 4 is provided with at bottom of furnace body, vaporized chemical transfer lime is also provided with vapour content controller 41, vaporized chemical comprises air and saturated vapor, the content of the full Heshui steam in vaporized chemical can be adjusted with the temperature of combustion of zone of combustion by controller, ensure that temperature of combustion remains at about 1200 DEG C, in the body of heater of gasification stove outside week along being provided with dry distillation gas annular isocon 52 and communicating with the dry distillation gas transfer lime 5 of drawing from upper furnace dead level, circulation isocon is evenly equipped with circumferential weld, circumferential weld is designed with Anti-blocking structure, destructive distillation combustion gas is injected into zone of combustion by circumferential weld and carbonization at low temperature moulded coal burns simultaneously, both improve the utilization ratio of the energy, the organic toxic harmful substance do not decomposed completely contained in dry distillation gas also can resolve into inorganics completely after the high-temp combustion of 1200 DEG C, dry distillation gas transfer lime is also designed with frequency converting induced draft fan 51 for controlling operational throughput and the blast of dry distillation gas, make the output temperature of dry distillation gas remain on pressure in about 350 DEG C and burner hearth and keep pressure-fired, prevent extraneous air from bleeding, guarantee retort process is safe and reliable, simultaneously, the middle part of dry distillation gas transfer lime is designed to vertical structure, can effectively prevent the precipitation of coal tar in transfer lime or gather, transfer lime outer cladding lagging material also can prevent the decline of dry distillation gas temperature.
Based on the treatment process of above two-section type mud gasification treatment unit, as shown in Figure 1, its processing step is as follows:
First, mud higher for water content is carried out mechanical dehydration, dewater to water content be less than 50% mud and coal dust in 1: 2 ratio mix and be pressed into moulded coal;
Secondly, moulded coal drops in burner hearth from the dog-house in two-section type gasification furnace roof portion, the high temperature reduction coal gas produced due to gasification furnace bottom to rise as thermal barrier and to pass through stacking moulded coal, at drying layer, drying and dehydrating is carried out to moulded coal, and due to the stopping property of burner hearth, the moulded coal being in destructive distillation layer can carry out destructive distillation under the anaerobic state of 400 DEG C ~ 550 DEG C, form carbonization at low temperature moulded coal and dry distillation gas, dry distillation gas containing more hazardous and noxious substances and the dry water vapor produced mix to draw from burner hearth dead level with the temperature of 300 DEG C ~ 350 DEG C and again send into gasification stove after controlling flow and blast by frequency converting induced draft fan and participate in burning, carbonization at low temperature moulded coal is displaced downwardly to high-temperature gasification section and proceeds pyrolytic reaction, now, vaporized chemical containing full Heshui steam blasts from furnace bottom, enter zone of combustion through ash bed together with dry distillation gas and participate in burning, carbonization at low temperature moulded coal continues to carry out pyrolytic reaction in high-temperature gasification section, form reducing gas and consolidation shape lime-ash, lime-ash is discharged from furnace bottom ash discharging hole, safe and harmless cured article is can be made into after cooling,
Finally, the reducing gas of removing organic toxic objectionable impurities particularly Dioxins and Dioxins precursor is drawn from high-temperature gasification section top, after purifying treating unit depickling process, namely can be used as clean combustible gas cause with energy equipment, partial reduction coal gas then rises to low-temperature pyrolysis section and carries out drying and dehydrating and destructive distillation to top moulded coal.
In description of the present utility model, technical term " on ", " in ", D score, " top ", " end ", " interior ", " outward " etc. represent that direction or position relationship are based on direction shown in the drawings or position relationship, be only for convenience of description with understand the technical solution of the utility model, more than illustrate and not restriction has been done to the utility model, the utility model is also not limited only to the citing of above-mentioned explanation, the change that those skilled in the art make in essential scope of the present utility model, remodeling, increase or replace, all should be considered as protection domain of the present utility model.
Claims (7)
1. a two-section type mud gasification treatment unit, it is characterized in that: comprise sludge dewatering unit (1), moulded coal production unit (2) and mud gasification processing unit, described sludge dewatering unit is used for sludge dewatering and makes sludge moisture content be down to less than 50%; Described moulded coal production unit be by dehydration after mud and coal dust be mixed in proportion and be pressed into moulded coal, described mud gasification processing unit comprises two-section type gasification stove (3), and described moulded coal is sent in two-section type gasification stove after high temperature pyrolysis, formed lime-ash and reducing gas.
2. a kind of two-section type mud gasification treatment unit according to claim 1, it is characterized in that: described two-section type gasification stove (3) is divided into low-temperature pyrolysis section and high-temperature gasification section from top to bottom, the body of heater top of two-section type gasification stove is provided with dog-house (36), described low-temperature pyrolysis section comprises the drying layer (31) on upper strata and the destructive distillation layer (32) of lower floor, moulded coal in drying layer by the effect of high temperature reduction coal gas drying and dehydrating, pyrogenation and carbonization in destructive distillation layer, corresponding generation dry distillation gas and carbonization at low temperature moulded coal, carbonization at low temperature moulded coal is displaced downwardly to high-temperature gasification section and proceeds pyrolytic reaction, high-temperature gasification section comprises the reducing zone (33) on upper strata, middle zone of combustion (34) and the ash bed (35) of lower floor, the carbonization at low temperature moulded coal being displaced downwardly to high-temperature gasification section high temperature pyrolysis and gasification produce reducing gas in reducing zone and zone of combustion, finally form lime-ash, bottom of furnace body is provided with vaporized chemical transfer lime (4), for the introducing of vaporized chemical, vaporized chemical comprises air and full Heshui steam, vapour content in vaporized chemical is adjustable.
3. a kind of two-section type mud gasification treatment unit according to claim 2, it is characterized in that: between the low-temperature pyrolysis section of described gasification stove (3) and high-temperature gasification section, be provided with dry distillation gas transfer lime (5), one end of dry distillation gas transfer lime is communicated with the dead level of upper furnace, the other end of dry distillation gas transfer lime then communicates with body of heater hypomere zone of combustion, dry distillation gas causes zone of combustion by transfer lime and carbonization at low temperature moulded coal burns simultaneously, simultaneously, undecomposed organic toxic objectionable impurities contained in dry distillation gas resolves into inorganics completely after high-temp combustion.
4. a kind of two-section type mud gasification treatment unit according to claim 3, it is characterized in that: described dry distillation gas transfer lime (5) is also provided with frequency converting induced draft fan (51) for controlling air quantity and the blast of dry distillation gas, making the upper furnace of gasification stove (3) keep pressure-fired.
5. a kind of two-section type mud gasification treatment unit according to claim 3 or 4, is characterized in that: the middle part of described dry distillation gas transfer lime (5) is vertical structure, deposits shallow lake to prevent managing interior coal tar or gathers.
6. a kind of two-section type mud gasification treatment unit according to claim 3, it is characterized in that: the body of heater outside week of described gasification stove (3) is along being provided with dry distillation gas annular isocon (52) and communicating with described dry distillation gas transfer lime (5), furnace body inside is evenly equipped with circumferential weld, described circumferential weld is provided with Anti-blocking structure, and destructive distillation combustion gas is burnt to zone of combustion and carbonization at low temperature moulded coal by circumferential weld simultaneously.
7. a kind of two-section type mud gasification treatment unit according to claim 2, is characterized in that: described vaporized chemical transfer lime (4) is also provided with vapour content controller (41), for regulating the vapour content in vaporized chemical.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366896A (en) * | 2015-12-03 | 2016-03-02 | 上海澈底环保科技有限公司 | Device and process for sludge gasification melting circular treatment |
| CN108165695A (en) * | 2017-12-31 | 2018-06-15 | 新疆八钢铁股份有限公司 | Utilize the method for COREX stove treated sewages treatment plant precipitating sludge |
| CN111117682A (en) * | 2020-01-13 | 2020-05-08 | 王凯军 | Chromium-containing solid waste and organic material collaborative pyrolysis harmless treatment device and method |
-
2014
- 2014-07-30 CN CN201420427297.5U patent/CN204125311U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366896A (en) * | 2015-12-03 | 2016-03-02 | 上海澈底环保科技有限公司 | Device and process for sludge gasification melting circular treatment |
| CN108165695A (en) * | 2017-12-31 | 2018-06-15 | 新疆八钢铁股份有限公司 | Utilize the method for COREX stove treated sewages treatment plant precipitating sludge |
| CN111117682A (en) * | 2020-01-13 | 2020-05-08 | 王凯军 | Chromium-containing solid waste and organic material collaborative pyrolysis harmless treatment device and method |
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Effective date of registration: 20160902 Address after: 100084 No. 3, apartment 18, Tsinghua University, Beijing, Haidian District, 11 Patentee after: Li Wei Address before: 310012 C,, 4F, modern industrial park, Tong Miao Road, Zhejiang, Hangzhou Patentee before: ZHEJIANG DEQIAN ENERGY-SAVING TECHNOLOGY CO., LTD. |