CN87100767A - The device of preheating and calcination of powder raw material - Google Patents
The device of preheating and calcination of powder raw material Download PDFInfo
- Publication number
- CN87100767A CN87100767A CN198787100767A CN87100767A CN87100767A CN 87100767 A CN87100767 A CN 87100767A CN 198787100767 A CN198787100767 A CN 198787100767A CN 87100767 A CN87100767 A CN 87100767A CN 87100767 A CN87100767 A CN 87100767A
- Authority
- CN
- China
- Prior art keywords
- raw material
- section
- rotary
- wind section
- rotary wind
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/434—Preheating with addition of fuel, e.g. calcining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/2016—Arrangements of preheating devices for the charge
- F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
- F27B7/2033—Arrangements of preheating devices for the charge consisting of a single string of cyclones with means for precalcining the raw material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of in order to preheating and calcined powder raw material, the device that is used in particular for cement and lime raw material processing (for example before the rotary kiln burning) comprises some perpendicular chimney and rotary wind sections that are connected with series system.The gas passage of the guiding gas of a rotary kiln inlet plenum is connected to a following rotary wind section, the raw material of this section is discharged the inlet plenum that conduit enters rotary kiln, and the raw material of middle rotary wind section is discharged conduit and entered the inlet plenum of rotary kiln is guided to down in the gas passage of rotary wind section.
Description
The present invention introduces the device that adopts perpendicular chimney and preheating of cyclone type heat exchanger and calcined powder raw material, the special processing that is used for cement and lime raw material in addition, for example preheating and the calcining before cement and lime enter rotary kiln thermal treatment.
Known perpendicular chimney heat exchanger is equipped with one or two on their top and also flows rotary wind section, thus in distinctive perpendicular chimney, by the adverse current of cyclone type heat exchanger and and stream mode carry out heat exchange.The shortcoming of this device is that the thermo-efficiency of the perpendicular chimney of big upright adverse current of jumbo is very low, so reduced the efficient of kiln system heat exchange.
In addition, in the known devices there, a cyclonic separator is housed in the front of the perpendicular chimney of adverse current.Yet even a sizable perpendicular chimney height is arranged, but because the volume of the perpendicular chimney of adverse current, this heating means can not reach desired efficiency degree in the perpendicular chimney of this distinctive adverse current.
An object of the present invention is to get rid of or reduce at least basically above-mentioned defective, by the device of a preheating and calcined powder raw material is provided, this device comprises a perpendicular chimney section, it has two and is connected to the supravasal rotary wind section of its pneumatic outlet, therefore, on the working direction of gas, all sections connect with series system, wherein any one section can comprise one or more cyclone or perpendicular chimney, these cyclones or perpendicular chimney connect with parallel way, the feed and the remover of raw material and gas are housed simultaneously, thereby the gas passage of rotary kiln inlet plenum is with rotary wind section connection down, the raw material of following rotary wind section is discharged the bottom that conduit is introduced rotary kiln, and the raw material of middle rotary wind section is discharged conduit and introduced gas passage, and this gas passage is guided to this time rotary wind section to the inlet plenum of rotary kiln.At least one calcining is chewed to extend to inlet plenum is guided to down in the gas passage of rotary wind section.The conduit of three calcining air can be introduced the gas passage from inlet plenum to following rotary wind section.The raw material of rotary wind section was discharged conduit during solid-fuelled feed can extend to, or finally extended to the bottom of middle rotary wind section.
If the efficient of heat exchanger reaches its optimum value, apparatus of the present invention can reduce the perpendicular chimney height of perpendicular chimney preheater so.With regard to the big or small weight of perpendicular chimney, same in bigger device, the tangential gas feed that enters this shaft furnace bottom can be positioned at different height.Since have earthquake may with the supporting structure that may require a whole heat exchanger component of sizable supporting according to weather condition, device proposed by the invention also can utilize the automatic bearing performance of shorter heat exchanger shaft furnace to reduce cost of investment.In addition, the preheating rotary wind section is arranged in before the shaft furnace heat exchanger, owing to guaranteed the dispersion of raw material in the air-flow, and therefore to having desirable influence the work-ing life of erecting the chimney heat exchanger component.Apparatus of the present invention are specially adapted to be equipped with the device of high yield of the perpendicular chimney heat exchanger of single branching unit.
In the front view of accompanying drawing, diagramming goes out the embodiment of an example of apparatus of the present invention.
The pneumatic outlet 6 of following rotary wind section 4 is connected on the middle rotary wind section of being made up of two stage casing cyclones 7.These raw materials are discharged conduits to be connected to from revolution and to stop up the gas passage 3 that 1 inlet plenum 2 is drawn.The cyclone 7 of rotary wind section tangentially is connected to the bottom of the perpendicular chimney 10 of columniform adverse current in conduit 9 handles, dwindle into a little perpendicular chimney 12 at the top of perpendicular chimney 10 and it terminates to the cyclone 13 of expansion gradually, the discharge conduit 14 of Kuo Zhan cyclone 13 terminates to the top of erecting chimney 10 gradually.Discharging conduit 11 with raw material couples together the bottom of shaft furnace 10 and pneumatic outlet 6.
Can also one comprise cyclone 16 be connected with the cyclone 13 of expansion gradually with conduit 15 another on rotary wind section be installed in the sky of little perpendicular chimney 12.The raw material of last cyclone 16 is discharged conduit 17 and is terminated to little perpendicular chimney 12.Cyclone 16 is equipped with its distinctive pneumatic outlet 18 on each.
Have only an enforcement Fang Anzhong of the cyclone 13 of expansion gradually on the top of another perpendicular chimney 10, raw material is passed to little perpendicular chimney 12 by delivery channel 19.Under the situation of using cyclone 16 on two classification cyclones 13 and two, can be by conduit 20 raw material input pipe 15.
In order to improve the degree of calcination of raw material, can chew 21 or three combustion air injections are connected to gas passage 3 to the individual conduits 24 in the gas passage 3 to the burning of the combustion air that rotary kiln 1 is provided.
On the other hand, in the discharge conduit of cyclone 7, perhaps a similar feed line 23 can extend in the raw material vent pipe 8 of middle cyclone 7 during solid fuel feed line 22 may extend into.
Raw material through pack into conduit 15 and raw material is brought into cyclone 16 by gas of conduit 20, after separating, is entered little perpendicular chimney 12 through discharging conduit 17, separate the back raw material, introduce the top of erecting chimney 10 through discharging conduit 14.
Have entry pipe 19 transferring raw materials by terminating to little perpendicular chimney 12 in the embodiment of the single cyclone 13 of expansion gradually at perpendicular chimney 10 tops at another, bring raw material into the cyclone 13 of expansion gradually at little perpendicular chimney 12 there air-flows, enter the top of perpendicular chimney 10 simultaneously therefrom through one or more discharge conduit 14.
Raw material disperses in counter-current flow subtly by perpendicular chimney 10, and raw material enters pneumatic outlet 6 through discharging conduit 11 therefrom then, cyclone 7 in outlet 6 raw material being brought into.Raw material is after middle cyclone 7 separates, discharge conduit 8 by raw material and fall into gas passage 3, and bring raw material into backspin wind device 4 by gas, preheating is with after suitable burnt raw material separates, discharge the inlet plenum 2 that conduit 5 enters rotary kiln 1 through raw material, for final combustion.
If require raw material to reach higher degree of calcination, can chew 21 to gas passage 3 input fuel by burning.Therefore the combustion air that can provide with rotary kiln 1 or carry out the burning of fuel with three combustion airs of individual conduits 24 supplies.
If employing solid fuel, then require fully in order to burn long conduit by supply of fuel conduit 22 solid fuel is introduced in the discharge conduit of cyclone 7, or solid fuel is introduced the raw material discharge conduit 8 that cyclone 7 therefrom comes out by burning feed line 23.Fuel is preheating to its ignition temperature along long conduit, and then, the transferring raw material in gas passage 3 and following cyclone 4 down collaborative burnt under the situation of combustion air that has rotary kiln 1 to provide or the tertiary air by individual conduits 24 supplies.
Hot gas leaves rotary kiln 1, enters gas passage 3 by inlet plenum 2, by gas passage 3 gas is introduced cyclone 4 down, discharges conduit 6 by gas therefrom and enters middle cyclone 7, therefrom gas is tangentially introduced the perpendicular chimney 10 of adverse current.After this, the gas of rotation enters little perpendicular chimney 12 continuously.
When last cyclone 16 was connected to the top of this device, gas entered cyclone 16 by conduit 15.Therefore, gas spills into beyond the heating process by exporting 18.
Claims (5)
1, the device of preheating and calcined powder raw material, comprise a perpendicular chimney section, be connected to the supravasal rotary wind section of pneumatic outlet of perpendicular chimney section and be connected to the supravasal rotary wind section of gas feed that erects the chimney section, along on the working direction of gas, all sections connect with series system, wherein each section can be made up of more than one cyclone or the perpendicular chimney that connects with parallel way, and comprise the feed and the remover of raw material and gas, it is characterized in that: the gas passage 3 of rotary kiln 1 inlet plenum 2 is connected to down rotary wind section 4, the raw material of above-mentioned rotary wind section 4 is down discharged the bottom that conduit 5 enters rotary kiln 1 inlet plenum 2, and the raw material of middle rotary wind section 7 discharge conduit 8 enters the gas passage 3 from rotary kiln 1 inlet plenum 2 to following rotary wind section 4.
2, device according to claim 1 is characterized in that: at least one burning is chewed 21 and is extended to rotary kiln 1 inlet plenum 2 is guided to down in the gas passage 3 of rotary wind section 4.
3, device according to claim 1 and 2 is characterized in that: the conduit 24 of tertiary air extends to from rotary kiln 1 inlet plenum 2 in the gas passage 3 that descends rotary wind section 4.
4, according to claim 1,2 or 3 described devices, it is characterized in that: the raw material of rotary wind section 7 was discharged in the conduit 8 during solid fuel feed line 23 was connected to.
5, according to claim 1,2,3 or 4 described devices, it is characterized in that: solid fuel feed line 22 extends in the bottom of middle rotary wind section 7.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS863651A CS263617B1 (en) | 1986-05-20 | 1986-05-20 | Device for progressive calcination of powdered materials |
| CN198787100767A CN87100767A (en) | 1986-05-20 | 1987-02-17 | The device of preheating and calcination of powder raw material |
| DE3735825A DE3735825C2 (en) | 1986-05-20 | 1987-10-22 | Apparatus for calcining powdery materials |
| HU875024A HU201145B (en) | 1986-05-20 | 1987-11-11 | Apparatus for continuous calcinating dustlike materials |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS863651A CS263617B1 (en) | 1986-05-20 | 1986-05-20 | Device for progressive calcination of powdered materials |
| CN198787100767A CN87100767A (en) | 1986-05-20 | 1987-02-17 | The device of preheating and calcination of powder raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87100767A true CN87100767A (en) | 1988-08-31 |
Family
ID=39363842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787100767A Pending CN87100767A (en) | 1986-05-20 | 1987-02-17 | The device of preheating and calcination of powder raw material |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN87100767A (en) |
| CS (1) | CS263617B1 (en) |
| DE (1) | DE3735825C2 (en) |
| HU (1) | HU201145B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984319A (en) * | 2010-12-08 | 2011-03-09 | 鞍山市华杰建材技术开发有限公司 | Energy-saving and efficiency-improvement double-temperature-field rotary kiln system |
| CN103105067A (en) * | 2013-03-06 | 2013-05-15 | 刘红锁 | Powdery material suspension type heat exchanger device and powdery material heat exchanger system |
| CN106111360A (en) * | 2016-06-21 | 2016-11-16 | 常熟理工学院 | Compound cyclone separator |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK174194B1 (en) * | 1998-02-04 | 2002-09-09 | Smidth & Co As F L | Furnace systems, as well as processes for making cement |
| DE19917310A1 (en) | 1999-04-16 | 2000-10-19 | Krupp Polysius Ag | Material treatment equipment, especially for cement raw material calcination, has a flow diversion chamber with an impact wall transverse to material flow entering from a rising pipe branch |
| US6773259B1 (en) * | 2003-08-05 | 2004-08-10 | Giant Cement Holding Inc. | Continuous solid waste derived fuel feed system for calciner kilns |
| DE10358317A1 (en) * | 2003-12-12 | 2005-07-14 | Polysius Ag | Plant and process for the thermal treatment of raw material |
| BE1029244B1 (en) * | 2021-03-26 | 2022-10-25 | Thyssenkrupp Ag | Device and method for the thermal treatment of a mineral starting material |
| WO2022200232A1 (en) | 2021-03-26 | 2022-09-29 | Thyssenkrupp Industrial Solutions Ag | Device and method for the thermal treatment of a mineral feed material |
| WO2022200221A1 (en) | 2021-03-26 | 2022-09-29 | Thyssenkrupp Industrial Solutions Ag | Device and method for the thermal treatment of a mineral feedstock |
| US20240150236A1 (en) | 2021-03-26 | 2024-05-09 | thyssenkrupp Polysius GmbH | Device and method for the thermal treatment of a mineral feedstock |
| BE1029239B1 (en) * | 2021-03-26 | 2022-10-25 | Thyssenkrupp Ind Solutions Ag | Process for the thermal treatment of a mineral starting material |
| BE1029242B1 (en) * | 2021-03-26 | 2022-10-25 | Thyssenkrupp Ind Solutions Ag | Device and method for the thermal treatment of a mineral starting material |
| EP4313898A1 (en) * | 2021-03-26 | 2024-02-07 | thyssenkrupp Polysius GmbH | Method for the thermal treatment of a mineral feedstock |
| BE1029241B1 (en) * | 2021-03-26 | 2022-10-25 | Thyssenkrupp Ind Solutions Ag | Device and method for the thermal treatment of a mineral starting material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526296B2 (en) * | 1972-08-31 | 1977-02-21 |
-
1986
- 1986-05-20 CS CS863651A patent/CS263617B1/en not_active IP Right Cessation
-
1987
- 1987-02-17 CN CN198787100767A patent/CN87100767A/en active Pending
- 1987-10-22 DE DE3735825A patent/DE3735825C2/en not_active Expired - Fee Related
- 1987-11-11 HU HU875024A patent/HU201145B/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984319A (en) * | 2010-12-08 | 2011-03-09 | 鞍山市华杰建材技术开发有限公司 | Energy-saving and efficiency-improvement double-temperature-field rotary kiln system |
| CN103105067A (en) * | 2013-03-06 | 2013-05-15 | 刘红锁 | Powdery material suspension type heat exchanger device and powdery material heat exchanger system |
| CN103105067B (en) * | 2013-03-06 | 2015-08-26 | 刘红锁 | Granular material suspension heat exchange device and granular material heat-exchange system |
| CN106111360A (en) * | 2016-06-21 | 2016-11-16 | 常熟理工学院 | Compound cyclone separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CS365186A1 (en) | 1988-09-16 |
| DE3735825C2 (en) | 1997-10-16 |
| HUT48975A (en) | 1989-07-28 |
| CS263617B1 (en) | 1989-04-14 |
| DE3735825A1 (en) | 1989-05-03 |
| HU201145B (en) | 1990-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN87100767A (en) | The device of preheating and calcination of powder raw material | |
| CA1037255A (en) | Method and an apparatus for burning the material for the manufacture of cement | |
| CN101618887B (en) | Aluminium hydroxide suspension roasting furnace and layout in production plant | |
| US5292247A (en) | Apparatus for thermal processing of raw materials in dust form | |
| US4209296A (en) | Apparatus and method for the thermal treatment of fine grained material | |
| CN1516801A (en) | Mixing high temp. gas i nmineral kilns | |
| US4126471A (en) | Method and apparatus for the thermal treatment of alkali-containing pulverized raw material to be used in the manufacture of cement | |
| CN106568331A (en) | Large suspension kiln and production process thereof | |
| CN1044449A (en) | Make the method and the equipment of cement clinker | |
| US4318692A (en) | Helical duct gas/meal separator | |
| AU739761B2 (en) | Removal of sulfur oxides from preheater off gases | |
| CN86107746A (en) | The roasting assembly that the mobile roasting of powder stock is used | |
| US4326845A (en) | Suspension preheater for cement calcining plant | |
| EP1349637B1 (en) | System and method for removing gas from a stream of a mixture of gas and particulate solids | |
| US4286944A (en) | Installations for the calcination of alumina and similar products | |
| US3932116A (en) | Method and apparatus for burning pulverulent materials | |
| CN101654736B (en) | Suspension stay sintering process and system | |
| US4669976A (en) | Calcining apparatus for powdery materials | |
| GB2081855A (en) | Method and apparatus for heat treating granular material | |
| CN209721952U (en) | A kind of lime suspension calcining process equipment | |
| CN109467323A (en) | Lime suspension calcining process equipment | |
| CN214095496U (en) | Paddle type roasting furnace with bottom air inlet | |
| CN218755056U (en) | Gas-state suspension roasting furnace equipment | |
| US3358426A (en) | Preheating apparatus for cement raw meal | |
| JPS6226701Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |