CN107218801A - A kind of novel energy-conserving internal heat type wet process rotary kiln - Google Patents
A kind of novel energy-conserving internal heat type wet process rotary kiln Download PDFInfo
- Publication number
- CN107218801A CN107218801A CN201710439450.4A CN201710439450A CN107218801A CN 107218801 A CN107218801 A CN 107218801A CN 201710439450 A CN201710439450 A CN 201710439450A CN 107218801 A CN107218801 A CN 107218801A
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- China
- Prior art keywords
- kiln
- cylinder body
- wet process
- internal heat
- novel energy
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- 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
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 239000011449 brick Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012798 spherical particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- 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
- F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
-
- 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
- F27B7/12—Rotary-drum furnaces, i.e. horizontal or slightly inclined tiltable
-
- 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
-
- 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
- F27B7/22—Rotary drums; Supports therefor
-
- 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
- F27B7/26—Drives
-
- 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
- F27B7/28—Arrangements of linings
-
- 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
- F27B7/34—Arrangements of heating devices
-
- 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
- F27B7/38—Arrangements of cooling devices
-
- 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
- F27B2007/005—Rotary-drum furnaces, i.e. horizontal or slightly inclined for the treatment of slurries or wet materials
-
- 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
- F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
- F27B2007/025—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with different chambers, e.g. treatment zones
Abstract
The present invention discloses a kind of novel energy-conserving internal heat type wet process rotary kiln, belongs to rotary kiln technical field.It includes kiln cylinder body, kiln cylinder body drives gear wheel to be rotated by motor reducer by little gear, kiln cylinder body is provided at both ends with kiln head box and kiln tail case, exhaust opening is provided with above kiln tail case, kiln tail case side is provided with feed gun, and kiln head box side is provided with combustion gun, exhaust opening is connected by pipeline with air-introduced machine, air-introduced machine is connected by cable with frequency converter, and kiln head box bottom is connected by chute with cooler, and cooler is connected by air blower with combustion gun.The present invention takes a variety of conservation measures, makes full use of waste heat, can save energy about 15%, wet process rotary kiln is produced high performance-price ratio permanent ferrite prefiring material, improves the economic benefit of product.
Description
Technical field
The invention belongs to rotary kiln technical field, especially a kind of novel energy-conserving internal heat type wet process rotary kiln.
Background technology
It is the productions such as production high-performance permanent magnetic ferrite material that a variety of raw material, which are well mixed after dispensing carry out pre-burning in proportion,
The critical process of product.Mixing typically has dry and wet two ways.Wet method refers to use water as medium, and raw material is mixed into shape
Into slurry, its homogeneity of ingredients is better than dry method, and dust pollution is small in mixed process.By slurry send into rotary kiln in pre-burning when by
In a large amount of water evaporations, cause energy consumption higher.General wet process rotary kiln is the heat transfer area of increase kiln, often hangs with chain in kiln tail point
Bar, accelerates moisture evaporation.But have that heat utilization efficiency is high, dustiness is high in waste gas, chain easy break-down the shortcomings of.To fire proofed wood
Material, which is built by laying bricks or stones, to be improved, and in high temperature section using two layers of brick, overcomes the shortcoming of the insulation difference usually using one layer of brick.General revolution
Kiln waste gas adjusts capacity by Hand-operated butterfly valve, can cause excess exhaust gases and heat is lost.
The content of the invention
Increase the heat transfer area of kiln using kiln tail point chaining bar for what solution prior art was present, cause heat utilization efficiency not
Dustiness height, chain easy break-down in high, waste gas, high temperature section are adjusted using one layer of brick insulation difference and waste gas by Hand-operated butterfly valve
Capacity, causes excess exhaust gases and the defect of heat is lost, the present invention provides a kind of novel energy-conserving internal heat type wet process rotary kiln.
To achieve the above object, the present invention uses following technical proposals：
A kind of novel energy-conserving internal heat type wet process rotary kiln, it includes kiln cylinder body, and kiln cylinder body passes through small tooth by motor reducer
Wheel drives gear wheel to be rotated, and being provided at both ends with above kiln head box and kiln tail case, kiln tail case for kiln cylinder body is provided with exhaust opening,
Kiln tail case side is provided with feed gun, and kiln head box side is provided with combustion gun, and exhaust opening is connected by pipeline with air-introduced machine, air inducing
Machine is connected by cable with frequency converter, and kiln head box bottom is connected by chute with cooler, and cooler passes through air blower and burning
Rifle is connected.
Using above-mentioned technical proposal, using the exhausting amount of frequency converter step-less adjustment air-introduced machine, so that the exhaust of exhaust opening
Amount is accurately controlled.To deliver to combustion gun as combustion air combustion-supporting for hot-air in by the use of cooler, reduces energy consumption.
Further, the furnace chamber of kiln cylinder body is divided into drying balling-up section, heat temperature raising section and high temperature pre-burning section, wherein being dried into
Ball section is made using stainless steel material, and the inner side of drying balling-up section is welded with lifting blade；High temperature pre-burning section is using two layers of brick structure, bag
Light fire brick and heavy refractory brick are included, heavy refractory brick is located on the inside of light fire brick.
Using above-mentioned technical proposal, in drying balling-up section, due to having lifting blade, material and hot gas and kiln cylinder body heat-exchange surface
Product is dried greatly and rapidly, and because constantly rolling rupture forms nearly spherical particle.In high temperature pre-burning section, due to using two layers of brick knot
Structure, adds heat insulation effect.
Further, the draw ratio of kiln cylinder body is 17-20.
Using above-mentioned technical proposal, kiln cylinder body increases to 17-20 by draw ratio about 12, increases the draw ratio of kiln cylinder body, makes
Material in kiln cylinder body residence time length and make full use of waste gas residual heat carry out drying preheating.
Further, kiln cylinder body is horizontal by 2 ° of angles.
Using above-mentioned technical proposal, the convenient material that need to be handled overturn in inclined kiln cylinder body while move ahead, anti-
Only feed back.
Further, three wheel belt are radially arranged with kiln cylinder body, kiln cylinder body bottom is provided with three support rollers, wheel belt with
Support roller is connected.
Using above-mentioned technical proposal, by wheel belt by whole weight transfers of kiln cylinder body to support roller, and kiln cylinder body is set to exist
Rotated smoothly on support roller.
Beneficial effect：
The present invention takes a variety of conservation measures, makes full use of waste heat, can save energy about 15%, wet process rotary kiln is produced height
Cost performance permanent ferrite prefiring material, improves the economic benefit of product.
Brief description of the drawings
Fig. 1 is the structural representation of wet process rotary kiln of the present invention；
Fig. 2 be in Fig. 1 A-A to drying balling-up section furnace chamber sectional view；
Fig. 3 is B-B direction high temperature pre-burning section furnace chamber sectional view in Fig. 1.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of novel energy-conserving internal heat type wet process rotary kiln, it includes kiln cylinder body 1, kiln cylinder body 1 and horizontal plane
In 2 ° of angles, the draw ratio of kiln cylinder body 1 is 17-20, and kiln cylinder body 1 drives gear wheel 4 to enter by motor reducer 2 by little gear 3
Row rotation, being provided at both ends with above kiln head box 5 and kiln tail case 6, kiln tail case 6 for kiln cylinder body 1 is provided with exhaust opening 15, kiln tail case 6
Side is provided with feed gun 7, and the side of kiln head box 5 is provided with combustion gun 8, and exhaust opening 15 is connected by pipeline with air-introduced machine 9, air inducing
Machine 9 is connected by cable with frequency converter 10, and the bottom of kiln head box 5 is connected by chute 11 with cooler 12, and cooler 12 passes through drum
Blower fan (not shown) is connected with combustion gun 8, and three wheel belt 13 are radially arranged with kiln cylinder body 1, and the bottom of kiln cylinder body 1 is provided with
Three support rollers 14, wheel belt 13 is connected with support roller 14.
Kiln cylinder body 1 horizontal by 2 ° of angles, the convenient material that need to be handled overturn in inclined kiln cylinder body 1 while
Move ahead, prevent feed back.Kiln cylinder body 1 increases to 17-20 by draw ratio about 12, increases the draw ratio of kiln cylinder body 1, material is existed
Residence time length in kiln cylinder body 1 and make full use of waste gas residual heat carry out drying preheating.Using the step-less adjustment air-introduced machine 9 of frequency converter 10
Exhausting amount so that the capacity of exhaust opening 15 is accurately controlled.Hot-air is sent as combustion air in by the use of cooler 12
It is combustion-supporting to combustion gun 8, reduce energy consumption.By wheel belt 13 by whole weight transfers of kiln cylinder body 1 to support roller 14, and make kiln cylinder body
1 can rotate smoothly on support roller 14.
As shown in Fig. 2 the furnace chamber of kiln cylinder body 1 is divided into drying balling-up section 101, heat temperature raising section and high temperature pre-burning section 102, its
Middle drying balling-up section 101 is made using stainless steel material, and refractory material is not built in the inner side of drying balling-up section 101, but is welded with and raises
Flitch 103.
In drying balling-up section 101, due to there is lifting blade 103, material and hot gas and the heat exchange area of kiln cylinder body 1 are big and rapid
Drying, and because constantly rolling rupture forms nearly spherical particle.
As shown in figure 3, high temperature pre-burning section 102 is using two layers of brick structure, including light fire brick 104 and heavy refractory brick
105, heavy refractory brick 105 is located at the inner side of light fire brick 104.
In high temperature pre-burning section 102, due to using two layers of brick structure, adding heat insulation effect.
A kind of novel energy-conserving internal heat type wet process rotary kiln of the present invention, during work, the material slurry that need to be handled is fed through eminence
Rifle 7 is sent into, and as the rotation of kiln cylinder body 1 flows to lower, the high temperature hot gas of burning is sent into through combustion gun 8, from lower discharge end to
Eminence feed end flows, and both reverse flows carry out sufficient heat exchange, and the material slurry that need to be handled passes through drying balling-up section 101,
Nearly spherical particle is formed, particulate material enters back into heat temperature raising section and high temperature pre-burning section 102, makes the chemical combination of material reaction formation needs
Thing, reaches drying, balling-up, the purpose of uniform heating treatment；Pre- burned material enters cold by kiln head box 5 and chute 11 immediately
But machine 12, with cold air heat exchange in cooling procedure, (scheme not in the interior air heated by thermal material of cooler 12 through air blower
Show) deliver to that combustion gun 8 is combustion-supporting, reach the purpose that cooling residual heat is recycled；The water produced simultaneously in kiln cylinder body 1 after heat exchange
Steam is discharged with burning waste gas by pipeline communication air-introduced machine 9 through exhaust opening 15, by the step-less adjustment of frequency converter 10, accurate control
Capacity.
Limiting the scope of the invention, one of ordinary skill in the art should be understood that in technical scheme
On the basis of, those skilled in the art need not pay the various modifications that creative work can make or deformation still the present invention's
Within protection domain.
Claims (5)
1. a kind of novel energy-conserving internal heat type wet process rotary kiln, it includes kiln cylinder body (1), and kiln cylinder body (1) is logical by motor reducer (2)
Crossing little gear (3) drives gear wheel (4) to be rotated, it is characterised in that：The kiln cylinder body (1) is provided at both ends with kiln head box
(5) exhaust opening (15) and kiln tail case (6), is provided with above kiln tail case (6), kiln tail case (6) is provided with feed gun (7), kiln sideways
Head case (5) is provided with combustion gun (8) sideways, and exhaust opening (15) is connected by pipeline with air-introduced machine (9), and air-introduced machine (9) passes through electricity
Cable is connected with frequency converter (10), and kiln head box (5) bottom is connected by chute (11) with cooler (12), and cooler (12) passes through drum
Blower fan is connected with combustion gun (8).
2. novel energy-conserving internal heat type wet process rotary kiln according to claim 1, it is characterised in that：The kiln cylinder body (1)
Furnace chamber is divided into drying balling-up section (101), heat temperature raising section and high temperature pre-burning section (102), wherein drying balling-up section (101) is not using
The Steel material that becomes rusty is made, and lifting blade (103) is welded with the inside of drying balling-up section (101)；High temperature pre-burning section (102) is using two layers of brick knot
Structure, including light fire brick (104) and heavy refractory brick (105), heavy refractory brick (105) are located in light fire brick (104)
Side.
3. novel energy-conserving internal heat type wet process rotary kiln according to claim 1, it is characterised in that：The kiln cylinder body (1)
Draw ratio is 17-20.
4. novel energy-conserving internal heat type wet process rotary kiln according to claim 1, it is characterised in that：The kiln cylinder body (1) with
Horizontal plane is in 2 ° of angles.
5. novel energy-conserving internal heat type wet process rotary kiln according to claim 1, it is characterised in that：On the kiln cylinder body (1)
Three wheel belt (13) are radially arranged with, kiln cylinder body (1) bottom is provided with three support rollers (14), and wheel belt (13) connects with support roller (14)
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439450.4A CN107218801A (en) | 2017-06-12 | 2017-06-12 | A kind of novel energy-conserving internal heat type wet process rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439450.4A CN107218801A (en) | 2017-06-12 | 2017-06-12 | A kind of novel energy-conserving internal heat type wet process rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218801A true CN107218801A (en) | 2017-09-29 |
Family
ID=59948783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439450.4A Pending CN107218801A (en) | 2017-06-12 | 2017-06-12 | A kind of novel energy-conserving internal heat type wet process rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827425A (en) * | 2019-03-19 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | Rotary kiln is used in a kind of production of petroleum coke |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB114228A (en) * | 1917-04-24 | 1918-03-28 | Reginald Haddan | Improvements in Rotary Furnace Structures. |
| CN1417114A (en) * | 2002-12-31 | 2003-05-14 | 北京矿冶研究总院 | Method for calcining kaolin by rotary calcining kiln and rotary calcining kiln thereof |
| CN203116498U (en) * | 2012-11-27 | 2013-08-07 | 安徽龙磁科技股份有限公司 | Permanent magnetic ferrite pre-burning material rotary kiln energy saving device |
| CN203848656U (en) * | 2014-05-30 | 2014-09-24 | 马鞍山市鑫洋永磁有限责任公司 | Wet rotary kiln for permanent magnetic ferrite pre-burned clinker |
| CN205316957U (en) * | 2015-12-08 | 2016-06-15 | 盐城市沿海固体废料处置有限公司 | Wind controlling means is used in rotary kiln burning |
-
2017
- 2017-06-12 CN CN201710439450.4A patent/CN107218801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB114228A (en) * | 1917-04-24 | 1918-03-28 | Reginald Haddan | Improvements in Rotary Furnace Structures. |
| CN1417114A (en) * | 2002-12-31 | 2003-05-14 | 北京矿冶研究总院 | Method for calcining kaolin by rotary calcining kiln and rotary calcining kiln thereof |
| CN203116498U (en) * | 2012-11-27 | 2013-08-07 | 安徽龙磁科技股份有限公司 | Permanent magnetic ferrite pre-burning material rotary kiln energy saving device |
| CN203848656U (en) * | 2014-05-30 | 2014-09-24 | 马鞍山市鑫洋永磁有限责任公司 | Wet rotary kiln for permanent magnetic ferrite pre-burned clinker |
| CN205316957U (en) * | 2015-12-08 | 2016-06-15 | 盐城市沿海固体废料处置有限公司 | Wind controlling means is used in rotary kiln burning |
Non-Patent Citations (1)
| Title |
|---|
| 大冶有色金属公司等编, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827425A (en) * | 2019-03-19 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | Rotary kiln is used in a kind of production of petroleum coke |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170929 |
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| RJ01 | Rejection of invention patent application after publication |