CN105413550A - Sludge blending heating device - Google Patents
Sludge blending heating device Download PDFInfo
- Publication number
- CN105413550A CN105413550A CN201510865462.4A CN201510865462A CN105413550A CN 105413550 A CN105413550 A CN 105413550A CN 201510865462 A CN201510865462 A CN 201510865462A CN 105413550 A CN105413550 A CN 105413550A
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- CN
- China
- Prior art keywords
- mud
- steam
- sludge
- casing
- mixing
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/4094—Plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/405—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles having guiding conduits therein, e.g. for feeding the gas to the bottom of the receptacle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71705—Feed mechanisms characterised by the means for feeding the components to the mixer using belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/91—Heating or cooling systems using gas or liquid injected into the material, e.g. using liquefied carbon dioxide or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a sludge blending heating device, comprising sludge, steam and a box, wherein the device is formed by a sludge inlet (4), a box (7), a steam main pipe (2), steam branch pipes (3) and a discharge trough (9); steam flow is controlled by a valve, a certain quantity of steam passes through the steam main pipe (2), the multiple rows of steam branch pipes (3) uniformly distributed along the length direction of the box (7) enter the box so as to directly stir, disperse, blend and heating the sludge, and the blended and heated sludge is discharged via an overflow chamber (8) and the discharge trough (9). Compared with the prior art, by heating the sludge, the temperature of the sludge is raised, and by stirring the sludge, the problem that the blending granulation effect of primary blending and secondary blending is affected due to sludge caking and difficulty in blending with sintering material is solved.
Description
Technical field
The invention belongs to sintering art, especially relate to a kind of mud mixing heater.
Background technology
At present, in China's SINTERING PRODUCTION, comprehensive utilization of mud Problems existing is: the cohesive strength of mud own is strong, not easily discrete, particularly by Cemented filling in the process of sintered material, very easily there is layering, sedimentation, conglomeration, mix difficulty with sintered material, affect mixed, two mixed pelletization effects of mixing, meanwhile, during heat mixture pre-with hot returning ore, quick lime, steam, hot blast etc., also there is the problem being difficult to preheating mud.
Quick lime is the effective bonding agent of SINTERING PRODUCTION, can improve sintering process gas permeability.But need digestion could play bonding agent effect to greatest extent.Directly add in mixer, digestion time is short, can not fully digest, and causes sintering deposit white point, affects Sintering Operation Index.And the problems such as the blanking of burnt lime digester ubiquity is not smooth, easily conglomeration, dust vapor is seriously polluted, equipment failure rate is high.
In addition, sintering is a large amount of use mud after, because mud adopts pipeline transportation mostly, the transportation characteristics of sludge pipeline transportation plant issue of high concentration is many, has to adopt low concentration transport, thus makes the water yield exceed the water yield required for mixer, limits the digestion in advance of quick lime.
Patent document 1 discloses in a kind of sintering circuit and adopts steel-making steel rolling mixing sludge assimilation of quicklime raising SINTERING PRODUCTION to refer to calibration method: mud temperature 40-70 degree, quick lime granularity is less than 1.0mm, the rotating speed 200-400rpm of agitating device, the mass ratio (1-2) of mud and quick lime, sludge concentration 10-20%.Patent document 2 discloses a kind of sludge agitation equipment, and two shafts are installed in parallel on feed bin housing, and shaft is provided with multiple stirring knife bar, and one end that shaft stretches out feed bin housing is connected by wheel and rack case; Sheathed rubber sleeve is fixed at every root shaft two ends, and rubber sleeve is arranged on front-end bearing pedestal and rear bearing block respectively and is positioned at technical scheme on the side of feed bin housing.Patent document 3 discloses a kind of sludge stirring device, it comprises sludge tank, reductor, bearing base, shaft assembly, central rotating shaft, one end of described sludge tank is provided with described reductor, the output of described reductor connects one end of described central rotating shaft by described shaft assembly, the other end of described central rotating shaft is supported on described bearing base, described bearing base is close to the inwall of the other end of described sludge tank, it is characterized in that: described central rotating shaft is provided with anchor impeller, four leaf oars, described anchor impeller comprises blade, blade housing, described blade is distributed in the axis of described central rotating shaft, and horizontal symmetrical is arranged in the both sides of described central rotating shaft, the two ends of described blade are fastenedly connected described central rotating shaft respectively, blade housing, described four leaf oars are arranged between the blade of adjacent two-layer described anchor impeller, each blade of described four leaf oars and the horizontal plane of the described blade anglec of rotation at 45 °, four blades of described four leaf oars are distributed in the technical scheme of the horizontal circle side face of the described central rotating shaft of same position.In addition, other sludge stirring device patent is open in a large number in addition, but has no disclosure by the scheme of steam-stirring mud.Even if consider above existing patent document together, these patent documents do not provide yet with steam mixing heating mud enlightenment.
Prior art document
Patent document 1: Chinese patent 201310358280.9
Patent document 2: Chinese patent 201520235527.2
Patent document 3: Chinese patent 201220107599.5.
Summary of the invention
In order to overcome the shortcoming that prior art exists, the object of the invention is by Steam Heating, stir mud, improve the temperature of mud, solve mud conglomeration, the problem of difficulty is mixed with sintered material, take suitable arrangement to cancel burnt lime digester simultaneously, eliminate digester drawback, solve water yield imbalance problem.
For solving the problems of the technologies described above, the invention provides a kind of mud mixing heater, comprise mud, steam, casing, it is characterized in that: this device is made up of mud import 4, casing 7, main steam header 2, steam branch pipe 3, discharge groove 9, by Valve controlling steam flow, a certain amount of steam is by main steam header 2, casing is entered along the equally distributed many row's steam branch pipes 3 of casing 7 length direction, directly mud is stirred, discrete, mixing, heating, the mud after mixing heating through overflow chamber 8, discharge groove 9 discharges.
Casing 7 top of described mud mixing heater is provided with explosion-proof valve 5.
The side that casing 7 bottom of described mud mixing heater is relative with overflow chamber 8 is provided with blowoff valve 1.
Casing 7 top of described mud mixing heater is provided with manhole 6.
The invention provides a kind of mud mixing heater using method, quick lime 10 does not carry out the digestion that adds water in bottom, quick lime storehouse 11, along the direction that proportioning room logistics is advanced, mud is mixed the overflow chamber 8 of heater, discharge groove 9 followed by after being positioned over proportioning room quick lime 10 blanking point, utilize the high temperature mud after mixing heating to cover quick lime, quick lime is digested on proportioning belt 12.
Compared with prior art, the invention has the advantages that: by the steam of elevated pressures, mud is stirred, discrete, mixing, heating, improve mixture temperature, enhance mixed, two dark even granulating efficiencies, thus reduce sintering solid burnup, improve productivity of sintering machine, reduce main air blower electric current, meanwhile, cancel burnt lime digester, eliminate digester drawback, solve water yield imbalance problem.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is mud of the present invention mixing heater structural representation.
Fig. 2 is that mud of the present invention mixing heater uses layout drawing.
In Fig. 1, Fig. 2,1: blowoff valve; 2: main steam header; 3: steam branch pipe; 4: mud import; 5: explosion-proof valve; 6: manhole; 7: casing; 8: overflow chamber; 9: discharge groove; 10: quick lime; 11: quick lime storehouse; 12: proportioning belt.
Detailed description of the invention
The present invention is based on long-term observation and experiment, and the granulating efficiency that after finding to utilize steam to mix heating mud, sintering one, two is mixed is very good to be completed.
As Fig. 1, mud mixing heater is made up of blowoff valve 1, main steam header 2, steam branch pipe 3, mud import 4, explosion-proof valve 5, manhole 6, casing 7, overflow chamber 8, discharge groove 9, explosion-proof valve 5 is arranged on casing 7 top, the side relative with overflow chamber 8, casing 7 bottom is provided with blowoff valve 1, and manhole 6 is arranged on casing 7 top.
By Valve controlling steam flow, a certain amount of steam by main steam header 2, enter casing 7 along the equally distributed many row's steam branch pipes 3 of casing 7 length direction, directly mud stirred, discrete, mixing, heating, the mud after mixing heating through overflow chamber 8, discharge groove 9 discharges.
The concrete using method of the present invention is: quick lime 10 does not carry out the digestion that adds water in bottom, quick lime storehouse 11, along the direction that proportioning room logistics is advanced, mud is mixed the overflow chamber 8 of heater, discharge groove 9 followed by after being positioned over proportioning room quick lime 10 blanking point, utilize the high temperature mud after mixing heating to cover quick lime, quick lime is digested on proportioning belt 12.
Implementation result:
(1) heat mud, improve mixture temperature
From data measured, heating mud can improve mixture temperature 10-13 DEG C, after environment temperature raises, thermal loss reduces relatively, the effect improving mixture temperature will be more obvious, and summer, mixture temperature can reach 55-60 DEG C, estimate that improving mixture temperature reaches more than 15 DEG C.
(2) mix mud, strengthen mixed, two dark even granulating efficiencies
From data measured, after mixing heating mud, increase by 1.43% and 5.91% respectively from a content that is mixed, two mixed material 3-10mm grades out.Obvious mixing heating mud serves good invigoration effect to one mixed, two mixed mixed pelletizations.
(3) economic benefit calculation
Research shows, sinter mixture temperature often improves 10 DEG C, and sintering solid fuel consumption reduces 2kg, and productivity of sintering machine improves 5%.After mixing heating mud, solid burnup about 2 kgs/tonne of ore deposits can be reduced, calculate by monthly producing 550,000 tons of sintering deposits, these 860,000 yuan/month can be fallen.And steam comes into operation cost: every platform machine needs 30-40 ton steam every day, adds up to monthly cost 24-30 about ten thousand.In addition, productivity of sintering machine is improved, after one mixed, two mixed mixed pelletizations strengthenings, permeability of sintering material bed be improved significantly, SINTERING PRODUCTION achieve close air door operation, throttle opening is adjusted to 60%-80% by 100%, main air blower electric current is down to 285A by 315A, ton ore deposit reduces power consumption 2Kw.h, monthly produces 550,000 tons of sintering deposits and calculates, can fall these 600,000 yuan/month.Add up to ten thousand yuan, 1,160,000 yuan of/month Χ December=1392 that bring benefits every year.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. a mud mixing heater, comprise mud, steam, casing, it is characterized in that: this device is made up of mud import (4), casing (7), main steam header (2), steam branch pipe (3), discharge groove (9), by Valve controlling steam flow, a certain amount of steam is by main steam header (2), arrange steam branch pipe (3) equally distributed along casing (7) length direction more and enter casing, directly mud is stirred, discrete, mixing, heating, mixing heating after mud through overflow chamber (8), discharge groove (9) discharge.
2. mud mixing heater according to claim 1, is characterized in that: casing (7) top is provided with explosion-proof valve (5).
3. mud according to claim 1 and 2 mixing heater, is characterized in that: the side relative with overflow chamber (8), casing (7) bottom is provided with blowoff valve (1).
4. mud mixing heater according to claim 3, is characterized in that: casing (7) top is provided with maintenance empty (6).
5. mud mixing heater using method according to claim 1, it is characterized in that: quick lime (10) does not carry out the digestion that adds water in quick lime storehouse (11) bottom, along the direction that proportioning room logistics is advanced, mud is mixed the overflow chamber (8) of heater, discharge groove (9) followed by after being positioned over proportioning room quick lime (10) blanking point, utilize the high temperature mud after mixing heating to cover quick lime, make quick lime in the upper digestion of proportioning belt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865462.4A CN105413550A (en) | 2015-12-02 | 2015-12-02 | Sludge blending heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865462.4A CN105413550A (en) | 2015-12-02 | 2015-12-02 | Sludge blending heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413550A true CN105413550A (en) | 2016-03-23 |
Family
ID=55492353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510865462.4A Pending CN105413550A (en) | 2015-12-02 | 2015-12-02 | Sludge blending heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413550A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012319A (en) * | 2017-05-12 | 2017-08-04 | 山东钢铁股份有限公司 | One kind is used to sinter digestion steel-smelting sewage sludge system and method |
| CN109200871A (en) * | 2018-09-28 | 2019-01-15 | 北京国电龙源环保工程有限公司 | Waste water zero discharge device slurries tempering system and its operation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373660A (en) * | 1977-11-08 | 1978-06-30 | Toshiba Corp | Air stirring apparatus |
| CN101514072A (en) * | 2009-02-26 | 2009-08-26 | 北京四方如钢混凝土制品有限公司 | Mud granulizing method, mud granule produced thereby and application thereof |
| CN102078778A (en) * | 2009-12-01 | 2011-06-01 | 李启勇 | Steam bubbling type PASP (polyaspartic acid) solution mixing tank |
| CN102173557A (en) * | 2011-03-10 | 2011-09-07 | 北京科技大学 | Method for treating low-heating value excess sludge |
| CN202778444U (en) * | 2012-08-23 | 2013-03-13 | 南通艾德旺化工有限公司 | Steam heating and stirring reaction kettle |
| CN205412851U (en) * | 2015-12-02 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Mud mixing heating device |
-
2015
- 2015-12-02 CN CN201510865462.4A patent/CN105413550A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373660A (en) * | 1977-11-08 | 1978-06-30 | Toshiba Corp | Air stirring apparatus |
| CN101514072A (en) * | 2009-02-26 | 2009-08-26 | 北京四方如钢混凝土制品有限公司 | Mud granulizing method, mud granule produced thereby and application thereof |
| CN102078778A (en) * | 2009-12-01 | 2011-06-01 | 李启勇 | Steam bubbling type PASP (polyaspartic acid) solution mixing tank |
| CN102173557A (en) * | 2011-03-10 | 2011-09-07 | 北京科技大学 | Method for treating low-heating value excess sludge |
| CN202778444U (en) * | 2012-08-23 | 2013-03-13 | 南通艾德旺化工有限公司 | Steam heating and stirring reaction kettle |
| CN205412851U (en) * | 2015-12-02 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Mud mixing heating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012319A (en) * | 2017-05-12 | 2017-08-04 | 山东钢铁股份有限公司 | One kind is used to sinter digestion steel-smelting sewage sludge system and method |
| CN109200871A (en) * | 2018-09-28 | 2019-01-15 | 北京国电龙源环保工程有限公司 | Waste water zero discharge device slurries tempering system and its operation method |
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Application publication date: 20160323 |
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| WD01 | Invention patent application deemed withdrawn after publication |