CN103486597A - Process and device for burning tanning sludge by adopting fluidized bed suspended boiler - Google Patents
Process and device for burning tanning sludge by adopting fluidized bed suspended boiler Download PDFInfo
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- CN103486597A CN103486597A CN201310460110.1A CN201310460110A CN103486597A CN 103486597 A CN103486597 A CN 103486597A CN 201310460110 A CN201310460110 A CN 201310460110A CN 103486597 A CN103486597 A CN 103486597A
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Abstract
The invention discloses a process and device for burning tanning sludge by adopting a fluidized bed suspended boiler, and relates to the technical field of environmental engineering and thermal power engineering. The device for burning tanning sludge by adopting the fluidized bed suspended boiler is in the stable gas-solid fluidized state in a fluidized bed under the effect of about 30-40 m/s high-speed air flow, severe fluidized combustion is carried out, burning in the fluidized bed is sufficient, the temperature is high, Dioxin in waste gas is discharged to the minimum, heat generated by sludge burning can be supplied to the interior of a tanning factory, the tanning sludge is effectively disposed, and meanwhile certain economic and environment-friendly benefits can be obtained.
Description
Technical field
The present invention relates to environmental project and Thermal Power Engineering technical field, particularly a kind of Processes and apparatus that adopts fluid bed suspension boiler to burn leather-making mud.
Background technology
China is machining center and the process hides big country of world's leather, and leather resource amount, leather fur goods output rank first in the world, and chromium and compound is the base stock that leather industry is commonly used, produces in process of production a large amount of chromate waste waters and waste residue.China's leather industry approximately produces 1,400,000 t leather castoffs every year, and its major part is arbitrarily abandoned, and wherein contained heavy metal chromium has caused severe contamination to environment.Chromium can be put aside by food chain and human body is formed to potential hazard in human body, even causes teratogenesis, carcinogenic and mutagenesis etc.Therefore, chromium-polluted soil being repaired and administered is the great and urgent environmental problem that China faces.
Chinese patent literature " a kind of medicament of processing for tannery sludge bioleaching " (publication number CN101891359A, open day on November 24th, 2011) a kind of medicament of processing for tannery sludge bioleaching is disclosed, this material is mainly by ammonium sulfate, dipotassium hydrogen phosphate, epsom salt, vitamin, trace element, the compositions such as carbon source material, the bioleaching medicament has the premium properties that treatment effeciency is high, and effectively the tired material of heavy metal is fallen in metabolism, but its complicated component, preparation cost is high, and the operational management after putting into operation also needs the professional, be unfavorable for extensive popularization.
Chinese patent literature " a kind of technology and equipment thereof that utilizes the boiler smoke drying leather-making mud " (publication number CN1648080, open day on August 3rd, 2005) announced a kind of technology and equipment thereof that utilizes the boiler smoke drying leather-making mud, the method can effectively be utilized the boiler smoke drying leather-making mud, there is the useless environment-friendly advantage of useless system, but because the leather-making mud after drying still needs to carry out landfill disposal, run counter to the theme that nowadays solid waste " minimizing " is disposed, can not meet disposition of solid waste theory now.
Chinese patent literature " a kind of method of utilizing leather-making mud to prepare haydite " (publication number CN101717240A, open day on June 2nd, 2010) announced a kind of method of utilizing leather-making mud to prepare haydite, and Chinese patent literature " utilizing leather-making mud to produce the method for cement " (publication number CN101717240A, open day on December 23rd, 2009) has been announced the method for utilizing leather-making mud to produce cement.The starting point of above-mentioned two kinds of methods all is the leather-making mud building materials, be intended to realize two incomes of environmental protection and economy benefit, but preparation workshop and deposit godown need larger floor space, and under the background day by day increased at cost of land, above-mentioned two kinds of methods are difficult to promote on a large scale.Simultaneously, consider the export trade problem of prepared product, can not solve fast and effectively the leather-making mud of the quick output of on-site.
The hot chemical treatment technical finesse solid waste that the burning method of take is representative with it, subtract hold decrement, resource, the many merits such as innoxious is widely used.Leather-making mud contains higher organic matter, has very high combustion heat value, extremely is conducive to burn.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is, develops a kind of equipment that can efficiently burn leather-making mud, not only makes leather-making mud obtain minimizing and processes, and efficiently burns simultaneously.
(2) technical scheme
In order to address the above problem, the invention provides a kind of employing fluid bed suspension boiler and burn leather-making mud technique, comprise the following steps:
S1: water content and the combustion heat value of measuring leather-making mud, by the metering method of volume ratio, leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, the proportioning ratio need be determined according to actual sewage sludge quality, the low heat valve of leather-making mud low (6～8MJ/kg) but the mud mixed ratio be 65～75%, the low heat valve of leather-making mud high (10～12MJ/kg) but the mud mixed ratio be 85～95%;
S2: leather-making mud-coal slime slurry fully mixes in agitating device, and mixed leather-making mud-coal slime is starched without dehydration, through pipe-line transportation system (by plunger displacement pump, providing power), leather-making mud-coal slime slurry is sent into to the suspension flow fluidized bed boiler and is burned;
S3: leather-making mud-coal slime slurry, be stable gas-solid fluidized state in fluid bed suspension boiler under the high-speed air flow effect of 30～40m/s left and right, carry out fluidized bed combustion;
S4: the heat that sludge incineration is produced offers tannery inside;
S5: the smoke dust to the rear generation of burning is collected, and meets environmental requirement.
Wherein, when leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, by pressure-air, stirs homogenizing, emanate for preventing material.
The present invention also provides a kind of employing fluid bed suspension boiler to burn leather-making mud equipment, its described equipment comprises: mud-coal slime blending workshop, and described blending workshop comprises and connecting successively,
Mixing device, for carrying out proportioning by leather-making mud and coal slime at described mixing device;
Proportioner, it comprises the pressure-air agitating device, prevents the material segregation under the effect of described pressure-air agitating device;
The slurry transportation system, it comprises plunger displacement pump and ducts, for mixing mud being sent into to the suspension fluid bed of fluid bed suspension boiler;
Described employing fluid bed suspension boiler burns leather-making mud equipment and also comprises:
Fluid bed suspension boiler, can take hot water and steam according to the actual requirements as heat transfer medium, according to temperature requirements, can take conduction oil as heat transfer medium;
Described employing fluid bed suspension boiler burns leather-making mud equipment and also comprises:
Fluid bed suspension boiler, can take hot water and steam according to the actual requirements as heat transfer medium, according to temperature requirements, can take conduction oil as heat transfer medium; It is heat transfer medium that described fluid bed suspension boiler can also be take hot water and steam.
Further, described equipment also comprises dust arrester, and the flue gas produced after burning is discharged and passed through described dust arrester and collect disposal, meets environmental requirement.
Further, described equipment also comprises energy collecting system, and described energy collecting system offers tannery inside for hot water or the steam that sludge incineration is produced.
(3) beneficial effect
Employing fluid bed suspension boiler of the present invention burns leather-making mud equipment, be stable gas-solid fluidized state in bed under the high-speed air flow effect of 30-40m/s left and right, carry out violent fluidized bed combustion, in fluid bed, burn fully, temperature is high, make dioxin in waste gas reach minimum, the hot water that sludge incineration produces or steam can offer tannery inside.
The accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.
The invention provides a kind of employing fluid bed suspension boiler and burn leather-making mud technique, comprise the following steps:
S1: water content and the combustion heat value of measuring leather-making mud, by the metering method of volume ratio, leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, the proportioning ratio need be determined according to actual sewage sludge quality, the low heat valve of leather-making mud low (6～8MJ/kg) but the mud mixed ratio be 65～75%, the low heat valve of leather-making mud high (10～12MJ/kg) but the mud mixed ratio be 85～95%;
S2: leather-making mud-coal slime slurry fully mixes in agitating device, and mixed leather-making mud-coal slime is starched without dehydration, through pipe-line transportation system (by plunger displacement pump, providing power), leather-making mud-coal slime slurry is sent into to the suspension flow fluidized bed boiler and is burned;
S3: leather-making mud-coal slime slurry, be stable gas-solid fluidized state in fluid bed suspension boiler under the high-speed air flow effect of 30～40m/s left and right, carry out fluidized bed combustion;
S4: the heat that sludge incineration is produced offers tannery inside;
S5: the smoke dust to the rear generation of burning is collected, and meets environmental requirement.
Mix leather-making mud-coal slime slurry and be stable gas-solid fluidized state in bed under the high-speed air flow effect of 30-40m/s left and right, carry out violent fluidized bed combustion, burn fully in fluid bed, temperature is high, makes dioxin in waste gas reach minimum.
Preferably, when leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, by pressure-air, stirs homogenizing, emanate for preventing material.
Shown in Fig. 1, described employing fluid bed suspension boiler burns leather-making mud equipment and comprises: mud-coal slime blending workshop 100, and fluid bed suspension boiler 4, described blending workshop 100 comprises and connecting successively,
Mixing device 1, for carrying out proportioning by leather-making mud 10 and coal slime 11 at described mixing device;
Described employing fluid bed suspension boiler burns leather-making mud equipment and also comprises:
Fluid bed suspension boiler 4, can take hot water and steam according to the actual requirements as heat transfer medium, according to temperature requirements, can take conduction oil as heat transfer medium; It is heat transfer medium that described fluid bed suspension boiler can also be take hot water and steam.
Preferably, described equipment also comprises dust arrester 6, and the flue gas produced after burning is discharged and passed through described dust arrester 6 and collect disposal, meets environmental requirement.
Preferably, described equipment also comprises energy collecting system 5, and described energy collecting system 5 offers mud-coal slime blending workshop 100 for hot water or the steam that sludge incineration is produced.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (6)
1. an employing fluid bed suspension boiler burns leather-making mud technique, it is characterized in that, the technique that described employing fluid bed suspension boiler burns leather-making mud comprises the following steps:
S1: water content and the combustion heat value of measuring leather-making mud, by the metering method of volume ratio, leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, the proportioning ratio need be determined according to actual sewage sludge quality, the low heat valve of leather-making mud low (6～8MJ/kg) but the mud mixed ratio be 65～75%, the low heat valve of leather-making mud high (10～12MJ/kg) but the mud mixed ratio be 85～95%;
S2: leather-making mud-coal slime slurry fully mixes in agitating device, and mixed leather-making mud-coal slime is starched without dehydration, through pipe-line transportation system (by plunger displacement pump, providing power), leather-making mud-coal slime slurry is sent into to the suspension flow fluidized bed boiler and is burned;
S3: leather-making mud-coal slime slurry, be stable gas-solid fluidized state in fluid bed suspension boiler under the high-speed air flow effect of 30～40m/s left and right, carry out fluidized bed combustion;
S4: the heat that sludge incineration is produced offers tannery inside;
S5: the smoke dust to the rear generation of burning is collected, and meets environmental requirement.
2. burning leather-making mud technique as claimed in claim 1, is characterized in that, when leather-making mud and coal slime are carried out to proportioning in the batching mixing pit, by pressure-air, stirs homogenizing, for preventing material, emanates.
3. an employing fluid bed suspension boiler burns leather-making mud equipment, it is characterized in that, described equipment comprises: mud-coal slime blending workshop, and described blending workshop comprises and connecting successively,
Mixing device, for carrying out proportioning by leather-making mud and coal slime at described mixing device;
Proportioner, it comprises the pressure-air agitating device, prevents the material segregation under the effect of described pressure-air agitating device;
The slurry transportation system, it comprises plunger displacement pump and ducts, for mixing mud being sent into to the suspension fluid bed of fluid bed suspension boiler;
Described employing fluid bed suspension boiler burns leather-making mud equipment and also comprises: fluid bed suspension boiler, take conduction oil as heat transfer medium.
4. employing fluid bed suspension boiler as claimed in claim 3 burns leather-making mud equipment, it is characterized in that, it is heat transfer medium that described fluid bed suspension boiler can also be take hot water and steam.
5. employing fluid bed suspension boiler as claimed in claim 3 burns leather-making mud equipment, it is characterized in that, described equipment also comprises dust arrester, and the flue gas produced after burning is discharged and passed through described dust arrester collection and dispose, and meets environmental requirement.
6. employing fluid bed suspension boiler as claimed in claim 3 burns leather-making mud equipment, it is characterized in that, described equipment also comprises energy collecting system, and described energy collecting system offers tannery inside for hot water or the steam that sludge incineration is produced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310460110.1A CN103486597A (en) | 2013-09-27 | 2013-09-27 | Process and device for burning tanning sludge by adopting fluidized bed suspended boiler |
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| CN201310460110.1A CN103486597A (en) | 2013-09-27 | 2013-09-27 | Process and device for burning tanning sludge by adopting fluidized bed suspended boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483298A (en) * | 2014-12-10 | 2015-04-01 | 陕西科技大学 | Water quality detecting method for tannery wastewater treatment process |
| CN115218200A (en) * | 2022-05-18 | 2022-10-21 | 山西大学 | Coal slime and sludge flexible pumping process system coupled with coal-fired power plant |
Citations (6)
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| JPH10156314A (en) * | 1996-12-03 | 1998-06-16 | Ebara Corp | Method of recovering energy from waste |
| CN102705831A (en) * | 2012-05-11 | 2012-10-03 | 袁永扬 | Solid waste incinerator body |
| CN102980195A (en) * | 2012-12-04 | 2013-03-20 | 杭州恩内泽科技有限公司 | Method for treating coal chemical gasified slag |
| CN203010634U (en) * | 2013-01-04 | 2013-06-19 | 无锡亿恩科技股份有限公司 | Circulating fluidized bed incinerator capable of burning dry sludge for heating wet sludge |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN203656937U (en) * | 2013-09-27 | 2014-06-18 | 苏州展阳新能源科技有限公司 | Equipment for incinerating tanning sludge by adopting fluidized bed suspension boiler |
-
2013
- 2013-09-27 CN CN201310460110.1A patent/CN103486597A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10156314A (en) * | 1996-12-03 | 1998-06-16 | Ebara Corp | Method of recovering energy from waste |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN102705831A (en) * | 2012-05-11 | 2012-10-03 | 袁永扬 | Solid waste incinerator body |
| CN102980195A (en) * | 2012-12-04 | 2013-03-20 | 杭州恩内泽科技有限公司 | Method for treating coal chemical gasified slag |
| CN203010634U (en) * | 2013-01-04 | 2013-06-19 | 无锡亿恩科技股份有限公司 | Circulating fluidized bed incinerator capable of burning dry sludge for heating wet sludge |
| CN203656937U (en) * | 2013-09-27 | 2014-06-18 | 苏州展阳新能源科技有限公司 | Equipment for incinerating tanning sludge by adopting fluidized bed suspension boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483298A (en) * | 2014-12-10 | 2015-04-01 | 陕西科技大学 | Water quality detecting method for tannery wastewater treatment process |
| CN115218200A (en) * | 2022-05-18 | 2022-10-21 | 山西大学 | Coal slime and sludge flexible pumping process system coupled with coal-fired power plant |
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Application publication date: 20140101 |