CN201945190U - Novel energy-saving environment-friendly eight-push head vertical preheater - Google Patents
Novel energy-saving environment-friendly eight-push head vertical preheater Download PDFInfo
- Publication number
- CN201945190U CN201945190U CN2010206520740U CN201020652074U CN201945190U CN 201945190 U CN201945190 U CN 201945190U CN 2010206520740 U CN2010206520740 U CN 2010206520740U CN 201020652074 U CN201020652074 U CN 201020652074U CN 201945190 U CN201945190 U CN 201945190U
- Authority
- CN
- China
- Prior art keywords
- dolomite
- preheater
- heat
- heat exchange
- rotary kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 25
- 239000010459 dolomite Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 11
- 239000003500 flue dust Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 abstract description 4
- 239000011777 magnesium Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
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- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model belongs to a calcined dolomite vertical preheater of a rotary kiln in the metallurgical magnesium industry, which can solve the problems of high temperature at the kiln tail of the rotary kiln, low utilization ratio of heat in smoke dust, high energy consumption and large fuel consumption proportion in production cost in the prior art. An inverted conical dolomite raw material cabin is arranged at the top of the vertical preheater, eight feed pipes are linked below the raw material cabin, the lower parts of the feed pipes are connected into a heat exchange chamber, a smoke dust outlet is arranged at the upper part on the side of the heat exchange chamber, a hydraulic material pushing device is arranged at the lower part, the bottom of the heat exchange chamber is linked with a discharge port, and a transfer slide is linked below the discharge port. The vertical preheater is characterized in that the vertical preheater utilizes hot smoke dust at the kiln tail to perform heat exchange with dolomite at normal temperature, the dolomite is preheated to above 700 DEG C before entering into the rotary kiln and then enters into the rotary kiln, the temperature of smoke gas exhausted from the preheater does not exceed 250 DEG C, the system resistance of the preheater does not exceed 4000Pa, the heat exchange efficiency is high, and the energy-saving effect is significant.
Description
Technical field
The utility model relates to the quantity-produced preheating device that a kind of calcined by rotary kiln dolomite of supporting smelting magnesium industry uses, and relates in particular to a kind of novel energy-saving environment-friendly eight shaft preheater of cutting somebody's hair.
Background technology
Magnesium metal industry ferrosilicon process smelts that magnesium adopts mostly is that the calcined by rotary kiln dolomite obtains activity and forges white, the rotary kiln draw ratio about about 18 to 25 in the traditional handicraft, can reach more than 600 degrees centigrade by rotary kiln flue dust temperature, a large amount of high-temperature smokes directly are discharged in the atmosphere after by expansion chamber, caused very big energy waste, there are some production units to adopt waste heat boiler, but the white specific heat consumption of forging of calcining out is in a high position, the fuel that dolomite calcination consumed during the unit magnesium metal extracted accounts for 30%～40% of total burn-off, causes enterprise's production cost height.In recent years along with the sharp rising of energy prices, it is increasing that fuel cost accounts for the proportion of totle drilling cost in the smelting magnesium production process.Under the big policy of national energy-saving and emission-reduction, adopt to reduce rotary kiln Fuel Consumption and activity and forge white production cost, and it is extremely urgent to meet the technology and the equipment of national environmental protection policy and discharge standard.
Summary of the invention
The purpose of this utility model is exactly the weak point that overcomes above-mentioned technology, and then a kind of novel high-efficient energy-saving environment friendly eight shaft preheater of cutting somebody's hair is provided.
For achieving the above object, the utility model adopts following technical scheme: a kind of energy-saving ring insure-eight shaft preheater of cutting somebody's hair, it is characterized in that: the former feed bin of back taper dolomite (1) is arranged at the device top, former feed bin below connects eight charge pipes (2), charge pipe (2) below is inserted in the heat-exchanging chamber (3), heat-exchanging chamber (3) is an octagon ring passage, upper lateral part is provided with eight flue dust outlets (4), the bottom is provided with eight cover hydraulic pressure material-pulling devices (5), heat-exchanging chamber (3) bottom connects discharging opening (6), discharging opening (6) is down eight limit bullets, and the below connects transfer slide (7).High temperature kiln tail gas and normal temperature dolomite carry out heat exchange at heat-exchanging chamber (3), flue dust outlet (4) is located flue-gas temperature less than 250 degrees centigrade, the dolomite that hydraulic pressure material-pulling device (5) will be preheating to more than 700 degrees centigrade successively pushes discharging opening (6), enters rotary kiln (8) through transfer slide (7) again.
Its working principles is that dolomite enters heat friendship chamber (3) in slowly heat absorption by the gravity effect by charge pipe (2) from former feed bin (1), when reaching uniform temperature, push discharging opening (6) by hydraulic pressure material-pulling device (5) and carry out quick burning through transfer slide (7) inflow rotary kiln (8) again; Rotary kiln (8) kiln tail high-temperature smoke gas enters heat-exchanging chamber (3) heat exchange cooling by transfer slide (7) and discharging opening (6), enters dust pelletizing system by preheater flue dust outlet (4) then.
The utility model energy-saving ring insure-eight shaft preheater characteristics of cutting somebody's hair:
1, rotary kiln installs shaft preheater additional, the fume afterheat of kiln tail is directly conducted in heat-exchanging chamber to dolomite, flue-gas temperature by preheater can be reduced to lower temperature, reclaimed the heat that fume emission is taken away effectively, simultaneously also be that follow-up dedusting reduces load, reduce Fuel Consumption and reduce discharge amount of exhaust gas, compare with traditional handicraft and can save energy 15%～20%.
2, dolomite from former feed bin by the gravity effect by charge pipe to the heat-exchanging chamber of shaft preheater, slowly be warming up to more than 700 degrees centigrade in 5 hours, reduce the rotary kiln high-temperature calcination time and improve calcination efficiency.
3, on shaft preheater, be furnished with the suitable hydraulic pressure material-pulling device of physical dimension, successively the dolomite of maximum temperature pushed transfer slide and deliver to rotary kiln then, realize producing continuously.
4, on shaft preheater, adopt eight cover hydraulic pressure material-pulling devices to satisfy per hour to be no more than 21000 kilograms of activity and forge the rotary kiln of white production.
The utility model energy-saving ring insure-eight shaft preheater of cutting somebody's hair is simple in structure, easy for installation, removes part and adopts heat resisting steel, and all the other adopt general steel plate, and are cheap for manufacturing cost, long service life.Prior art is proposed rational improvement, filled up the market vacancy.Energy-saving effect is remarkable, is the desirable technique that reduces enterprise's production cost and meet energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the agent structure schematic diagram of embodiment of the present utility model.
Fig. 2 is the agent structure left view of embodiment of the present utility model.
Fig. 3 is the agent structure vertical view of embodiment of the present utility model.
Fig. 4 is former feed bin upward view.
Fig. 5 is former feed bin A-A profile.
Fig. 6 is the charge pipe schematic diagram.
Fig. 7 is the hollow beam schematic cross-section.
The specific embodiment
As shown in the figure, former feed bin (1) top is a conical shell, and the middle part is a cylinder, and the bottom is eight back tapers, and former feed bin (1) is divided into eight parts to dolomite by gravity effect inflow charge pipe.Have the through hole less than the dolomite granularity on charge pipe (2) tube wall, insert rod when baking kiln and maintenance and can stop that dolomite falls, charge pipe (2) bottom is deep in the heat-exchanging chamber (3), makes dolomite evenly distribution in heat-exchanging chamber (3).Heat-exchanging chamber (3) is a polygon ring passage, and hollow sub-material beam is arranged at every cover hydraulic pressure material-pulling device (5) top, and sub-material load bearing beam part dolomite pressure reduces corresponding hydraulic pressure material-pulling device (5) resistance.The hydraulic pressure material-pulling device has flue-dust retainer on (5), the waste material of taking out of in the return of cutting somebody's hair is discharged by flue-dust retainer, the assurance stroke of cutting somebody's hair is smooth, and pusher can be adjusted blanking time within the specific limits, satisfies heat-exchanging chamber (3) dolomite temperature drift or the adjustment of needs when on the low side.Discharging opening (6) be down polygon cone-shaped and size reasonable, dolomite needs to push through hydraulic pressure material-pulling device (5) at heat-exchanging chamber (3).The angle of transfer slide (7) inclined end face horizontal by 10 degree to 20 degree, the bottom surface behind the pouring heat insulating material still keep 10 degree between 20 degree, and can retain dolomite is buffer strip, makes heat-barrier material not directly impacted by material.Heat-exchanging chamber (3), discharging opening (6), transfer slide (7) contact the place with high-temperature smoke and are furnished with heat-barrier material, reduce heat and leak, and guarantee pre-heat effect.
Dolomite enters hot hand over chamber (3) in slowly heat absorption by the gravity effect by charge pipe (2) from former feed bin (1), when reaching uniform temperature, pushes discharging opening (6) by hydraulic pressure material-pulling device (5) and carries out quick burning through transfer slide (7) inflow rotary kiln (8) again; Rotary kiln (8) kiln tail high-temperature smoke gas enters heat-exchanging chamber (3) heat exchange cooling by transfer slide (7) and discharging opening (6), enters dust pelletizing system by preheater flue dust outlet (4) then.
Claims (3)
1. a novel energy-saving environment-friendly eight shaft preheater of cutting somebody's hair, it is characterized in that the former feed bin of back taper dolomite (1) is arranged at the top, former feed bin below connects eight charge pipes (2), the charge pipe below is inserted in the heat-exchanging chamber (3), heat-exchanging chamber (3) upper lateral part is provided with eight flue dust outlets (4), the bottom is provided with eight cover hydraulic pressure material-pulling devices (5), and heat-exchanging chamber (3) bottom connects discharging opening (6), and discharging opening (6) below connects transfer slide (7).
2. a kind of novel energy-saving environment-friendly eight according to claim 1 shaft preheater of cutting somebody's hair is characterized in that: former feed bin (1) top is a conical shell, and the middle part is a cylinder, and the bottom is eight back tapers, and former feed bin (1) is divided into eight parts to dolomite.
3. a kind of novel energy-saving environment-friendly eight according to claim 1 shaft preheater of cutting somebody's hair, it is characterized in that: heat-exchanging chamber (3) is an octagon ring passage, and hollow sub-material beam is arranged at every cover hydraulic pressure material-pulling device top, and discharging opening (6) is down eight limit cone-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206520740U CN201945190U (en) | 2010-12-10 | 2010-12-10 | Novel energy-saving environment-friendly eight-push head vertical preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206520740U CN201945190U (en) | 2010-12-10 | 2010-12-10 | Novel energy-saving environment-friendly eight-push head vertical preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945190U true CN201945190U (en) | 2011-08-24 |
Family
ID=44472530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206520740U Expired - Lifetime CN201945190U (en) | 2010-12-10 | 2010-12-10 | Novel energy-saving environment-friendly eight-push head vertical preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945190U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045848A (en) * | 2012-12-18 | 2013-04-17 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN111928666A (en) * | 2020-08-17 | 2020-11-13 | 稷山县金星煤焦有限公司 | Vertical layered drying preheater |
| CN112923735A (en) * | 2021-01-29 | 2021-06-08 | 中信重工机械股份有限公司 | Flue gas waste heat utilization type preheater of lime rotary kiln |
| CN116659252A (en) * | 2023-07-21 | 2023-08-29 | 山西昌祥高钙石灰股份有限公司 | A flue gas negative pressure control system for a rotary kiln |
-
2010
- 2010-12-10 CN CN2010206520740U patent/CN201945190U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045848A (en) * | 2012-12-18 | 2013-04-17 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN103045848B (en) * | 2012-12-18 | 2014-08-06 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN111928666A (en) * | 2020-08-17 | 2020-11-13 | 稷山县金星煤焦有限公司 | Vertical layered drying preheater |
| CN112923735A (en) * | 2021-01-29 | 2021-06-08 | 中信重工机械股份有限公司 | Flue gas waste heat utilization type preheater of lime rotary kiln |
| CN116659252A (en) * | 2023-07-21 | 2023-08-29 | 山西昌祥高钙石灰股份有限公司 | A flue gas negative pressure control system for a rotary kiln |
| CN116659252B (en) * | 2023-07-21 | 2023-10-24 | 山西昌祥高钙石灰股份有限公司 | Flue gas negative pressure control system of rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HENAN ZHENGZHOU MINING MACHINERY CO.,LTD Assignor: Su Genhua Contract record no.: 2012410000041 Denomination of utility model: Novel energy-saving environment-friendly eight-push head vertical preheater Granted publication date: 20110824 License type: Exclusive License Record date: 20120409 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |