CN105333727A - Continuous efficient rotary kiln - Google Patents
Continuous efficient rotary kiln Download PDFInfo
- Publication number
- CN105333727A CN105333727A CN201510782461.3A CN201510782461A CN105333727A CN 105333727 A CN105333727 A CN 105333727A CN 201510782461 A CN201510782461 A CN 201510782461A CN 105333727 A CN105333727 A CN 105333727A
- Authority
- CN
- China
- Prior art keywords
- kiln
- kiln body
- section
- cooling section
- efficient rotary
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000011449 brick Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 11
- 239000003779 heat-resistant material Substances 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000567 combustion gas Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 206010016970 Foot fracture Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- 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
- F27B7/34—Arrangements of heating devices
Abstract
The invention discloses a continuous efficient rotary kiln. The continuous efficient rotary kiln comprises a kiln body mounted rotatably; a feeding hole and a discharge hole are formed in the two ends of the kiln body, respectively; a preheating section, a high-temperature roasting section and a forced cooling section are formed in a material flowing direction within the kiln body; a combustion gas pipe for supplying gas and combustion-supporting air is inserted in the discharge hole end of the kiln body; the combustion gas pipe is connected with a combustion nozzle that extends into the high-temperature roasting section; each of the preheating section and the high-temperature roasting section of the kiln body comprises a metal shell layer and a heat-resisting material layer from outside to inside; the forced cooling section of the kiln body is a stainless steel shell. The continuous efficient rotary kiln is capable of avoiding the problems of easy damage of barrel refractory bricks (castable) due to a relatively high discharge hole temperature of a kiln barrel and easy rust formation due to a high temperature of an end metal part, and further advantageous for prolonging the service life of the equipment and heating the combustion-supporting air; the energy can be saved and the consumption can be reduced; a fired product does not need to be cooled after being discharged out of the kiln, so that a cooler is not needed, and therefore, investment on equipment is reduced and continuous production can be carried out favorably.
Description
Technical field
The present invention relates to rotary kiln technical field, particularly relate to the continuous efficient rotary kiln that a kind of structure is improved.
Background technology
Rotary kiln is a kind of front high rear low cylindric kiln body with certain gradient, and its mode of heating has interior mode of heating and external heating mode, when interior mode of heating is for directly burning, can be described as internal combustion type again.The kiln cylinder of internal combustion type rotary kiln generally includes the metal shell in outside and the refractory material of inner side, the end of kiln cylinder is provided with burner noz(zle), kiln cylinder has rotation whirligig, by the rotation of kiln cylinder and coordinating of inclination angle, material in the rotation process of kiln cylinder by the Action of Gravity Field of self from the high-end discharging opening flowing to low side, material is heated evenly wherein, is usually used in the roasting of powder and the dryings etc. for unclassified stores such as kaolin, ceramic clay, talcum powder in industry.
In use there is following problem in existing internal combustion type rotary kiln: during the burning of (1) burner noz(zle), temperature around kiln cylinder roasting nozzle can up to 1000 ~ 1400 DEG C, and kiln cylinder discharge outlet temperature is 900 to 1000 degree left and right, along with service time extends, cylindrical shell refractory material (as refractory brick) can be caused easily to damage on the one hand, shorten service life of equipment; Barrel end metalwork high temperature easily can be caused on the other hand to produce iron rust, thus cause material to pollute, namely use cast material protection, due to complex process, manufacturing cost is higher, and service life is not long yet.(2) roasting or dry complete material from kiln cylinder during discharging due to material temperature higher (about 1000 DEG C), therefore usually need to set up cooling device in addition so that material cooling, cooled material is promoted to feed bin by elevator again and packs, cause that equipment investment is large, technological process is long, be unfavorable for continuous prodution, be unfavorable for reducing production cost.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of reasonable in design, the high problem causing the fragile and barrel end metalwork high temperature of cylindrical shell refractory brick easily to produce iron rust of kiln cylinder drop temperature can be avoided, be beneficial to raising service life of equipment, be beneficial to saving fuel, reduce equipment investment, be beneficial to integration, continuous prodution simultaneously, be beneficial to the continuous efficient rotary kiln reducing production cost.
For solving the problems of the technologies described above, technical scheme of the present invention is: continuous efficient rotary kiln, and comprise the kiln body rotating and install, the two ends of described kiln body are respectively equipped with charging aperture and discharging opening; Described kiln body is inner to be formed preheating section, high-temperature roasting section and forces cooling section along Flow of Goods and Materials direction, described kiln body discharge port end inserts the combustion of delivery of fuel gas and combustion air, described combustion is connected with burner noz(zle), and described burner noz(zle) stretches in described high-temperature roasting section; Preheating section and the high-temperature roasting section of described kiln body comprise metal shell layer and heat-resistant material layer from outside to inside, and the pressure cooling section of described kiln body is Stainless Steel Shell.
As preferably, between described burner noz(zle) place and described pressure cooling section, is provided with nature cooling section in described kiln body, the kiln body of described natural cooling section comprises metal shell layer and heat-resistant material layer from outside to inside.
As preferably, the corresponding described pressure cooling section place, outside of described kiln body is provided with cooling device.
As further improvement, described burner noz(zle) stretches to apart from described discharge port end 6 ~ 8 meters of.
As further improvement, described pressure cooling section length is 3 ~ 5 meters, and this section of cylindrical shell is heat-resistance stainless steel material, does not serve as a contrast heat proof material.
As preferably, described heat-resistant material layer is refractory brick.
As preferably, described feed inlet end is provided with waste gas dust-removal device.
Owing to have employed technique scheme, the present invention has following beneficial effect: the high-temperature roasting zone temperatures higher (1000 ~ 1400 DEG C) that kiln body combustion nozzle place is formed, nature cooling section moderate temperature (800 ~ 1000 DEG C), discharging opening temperature lower (400 ~ 500 DEG C) after forcing cooling section, so, the too high problem causing refractory damage and metal parts generation iron rust in kiln body of burnt temperature of charge can be avoided, be beneficial to raising service life of equipment, avoid institute's burned product to be polluted by metal iron rust and the broken end of refractory material, improve product quality, meanwhile, due to burner noz(zle), to stretch into kiln body comparatively dark, and combustion air enters from outside that rear temperature significantly increases by material radiation heating, is conducive to saving fuel, burned product in kiln body through natural cooling section with force after cooling section, directly in kiln body, form effective cooling, the material drawn off from discharging opening cools without the need to the cooling device again through adding, decrease equipment investment and floor space, be beneficial to integration, continuous prodution, be beneficial to and reduce production cost and cost of labor.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the embodiment of the present invention;
Temperature subregion schematic diagram when Fig. 2 is roasting powder in kiln body;
Structural representation when Fig. 3 is embodiment of the present invention mass transport.
In figure: 1-kiln body; 11-high-temperature roasting section; 111-metal shell layer; 112-heat-resistant material layer; 113-metal collar; 12-nature cooling section; 13-forces cooling section; 14-preheating section; 2-charging aperture; 3-discharging opening; 4-burner noz(zle); 5-combustion; 6-cooling device; 7-waste gas dust-removal device; 8-elevator; 9-feed bin.
Detailed description of the invention
Below in conjunction with drawings and Examples, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1 to Figure 3, continuous efficient rotary kiln, comprise the kiln body 1 rotating and install, described kiln body 1 can do rotary motion by gear drive connecting drive device, and mounting means can adopt the art usual manner to install, and does not repeat them here; The high-end of described kiln body 1 is provided with charging aperture 2, and the low side of described kiln body 1 is provided with discharging opening 3; Described kiln body 1 inside forms preheating section 14, high-temperature roasting section 11 and cooling section along Flow of Goods and Materials direction, described kiln body discharging opening 3 end inserts the combustion 5 of delivery of fuel gas and combustion air, described combustion 5 is connected with burner noz(zle) 4, and described burner noz(zle) 4 stretches in described high-temperature roasting section 11; Best, described burner noz(zle) 4 stretches into discharging opening 3 end 6 ~ 8 meters of described in distance in kiln, can both facilitate burner noz(zle) 4 to install, and is beneficial to again and effectively forms high temperature, transition and low temperature three regions in kiln body 1; Described cooling section comprises forces cooling section 13 and the natural cooling section 12 between described burner noz(zle) 4 place and described pressure cooling section 13, described pressure cooling section length is about 4 meters, the preheating section 14 of described kiln body, high-temperature roasting section 11 and natural cooling section 12 comprise metal shell layer 111 and heat-resistant material layer 112 from outside to inside, described heat-resistant material layer 112 is refractory brick, and the pressure cooling section 13 of described kiln body 1 is Stainless Steel Shell.
Corresponding described pressure cooling section 13 place, outside of described kiln body 1 is provided with cooling device 6, and described cooling device 6 is made up of some cooling water pipes; Described charging aperture 2 end is provided with waste gas dust-removal device 7, by dust cleaning case and exhaust gas fan by discharges such as the flue dust of the generation after burning.
When powders such as roasting kaolin, ceramic clay, talcum powder, because burner noz(zle) 4 stretches to apart from described discharge port end 6 ~ 8 meters of, high-temperature roasting section 11 temperature that kiln body 1 combustion nozzle 4 place is formed is higher, about 1000 ~ 1400 DEG C, natural cooling section 12 moderate temperature, about 800 ~ 1000 DEG C, through forcing cooling section 13 to discharge outlet temperature lower, about about 500 DEG C, the problem avoiding temperature height easily to cause refractory brick to damage, is beneficial to raising service life of equipment; And the metal collar 113 of refractory brick end is not easy to produce high temperature iron rust, avoids the pollution problem of metal iron rust and the broken foot couple material of refractory material; Meanwhile, due to burner noz(zle) 4, to stretch into kiln body comparatively dark, and combustion air enters from outside that rear temperature significantly increases by material radiation heating, is conducive to saving fuel; Moreover, burned product in kiln body through natural cooling section 12 with after forcing cooling section 13, directly in kiln body, form effective cooling, the material drawn off from discharging opening 3 is without the need to cooling through cooler again, directly can be promoted to packaging after in feed bin 9 by elevator 8, decrease equipment investment and floor space, be beneficial to integration, continuous prodution, be beneficial to and reduce production cost and cost of labor.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (7)
1. continuous efficient rotary kiln, comprise the kiln body rotating and install, the two ends of described kiln body are respectively equipped with charging aperture and discharging opening; It is characterized in that: described kiln body is inner to be formed preheating section, high-temperature roasting section and forces cooling section along Flow of Goods and Materials direction, described kiln body discharge port end inserts the combustion of delivery of fuel gas and combustion air, described combustion is connected with burner noz(zle), and described burner noz(zle) stretches in described high-temperature roasting section; Preheating section and the high-temperature roasting section of described kiln body comprise metal shell layer and heat-resistant material layer from outside to inside, and the pressure cooling section of described kiln body is Stainless Steel Shell.
2. continuous efficient rotary kiln as claimed in claim 1, it is characterized in that: between described burner noz(zle) place and described pressure cooling section, be provided with nature cooling section in described kiln body, the kiln body of described natural cooling section comprises metal shell layer and heat-resistant material layer from outside to inside.
3. continuous efficient rotary kiln as claimed in claim 2, is characterized in that: the corresponding described pressure cooling section place, outside of described kiln body is provided with cooling device.
4. continuous efficient rotary kiln as claimed in claim 1, is characterized in that: described burner noz(zle) stretches into 6 ~ 8 meters of of discharge port end described in distance in kiln.
5. continuous efficient rotary kiln as claimed in claim 4, is characterized in that: described pressure cooling section length is 3 ~ 5 meters, and material used is heat-resistance stainless steel.
6. continuous efficient rotary kiln as claimed in claim 1, is characterized in that: described heat-resistant material layer is refractory brick.
7. the continuous efficient rotary kiln as described in any one of claim 1 to 6, is characterized in that: described feed inlet end is provided with waste gas dust-removal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782461.3A CN105333727A (en) | 2015-11-16 | 2015-11-16 | Continuous efficient rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782461.3A CN105333727A (en) | 2015-11-16 | 2015-11-16 | Continuous efficient rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105333727A true CN105333727A (en) | 2016-02-17 |
Family
ID=55284389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510782461.3A Pending CN105333727A (en) | 2015-11-16 | 2015-11-16 | Continuous efficient rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333727A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621164A (en) * | 2017-09-22 | 2018-01-23 | 江苏亮盈科技股份有限公司 | A kind of continous way ion cathode material lithium modified device |
| CN110142106A (en) * | 2019-05-14 | 2019-08-20 | 佛山市蓝亚环保科技有限公司 | A kind of cooling screening machine of aluminium ash |
| CN112837878A (en) * | 2020-12-31 | 2021-05-25 | 横店集团东磁股份有限公司 | Rare earth-iron metal magnetic powder and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746290A (en) * | 1986-05-29 | 1988-05-24 | International Technolgy Corporation | Method and apparatus for treating waste containing organic contaminants |
| CN101693848A (en) * | 2009-10-19 | 2010-04-14 | 中国林业科学研究院林产化学工业研究所 | Process for internally heated continuous preparing biomass pyrolysis gasification gas and rotary furnace utilized by same |
| CN101762153A (en) * | 2010-01-12 | 2010-06-30 | 武汉科技大学 | Rotary kiln for extracting vanadium from stone coal |
| CN203021626U (en) * | 2012-12-31 | 2013-06-26 | 湘西自治州德邦锰业有限责任公司 | Manganese oxide reduction system for internal-heating type rotary kiln |
| CN104482550A (en) * | 2015-01-05 | 2015-04-01 | 金刚新材料股份有限公司 | Method and system for processing and utilizing phenol water through rotary kiln |
-
2015
- 2015-11-16 CN CN201510782461.3A patent/CN105333727A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746290A (en) * | 1986-05-29 | 1988-05-24 | International Technolgy Corporation | Method and apparatus for treating waste containing organic contaminants |
| CN101693848A (en) * | 2009-10-19 | 2010-04-14 | 中国林业科学研究院林产化学工业研究所 | Process for internally heated continuous preparing biomass pyrolysis gasification gas and rotary furnace utilized by same |
| CN101762153A (en) * | 2010-01-12 | 2010-06-30 | 武汉科技大学 | Rotary kiln for extracting vanadium from stone coal |
| CN203021626U (en) * | 2012-12-31 | 2013-06-26 | 湘西自治州德邦锰业有限责任公司 | Manganese oxide reduction system for internal-heating type rotary kiln |
| CN104482550A (en) * | 2015-01-05 | 2015-04-01 | 金刚新材料股份有限公司 | Method and system for processing and utilizing phenol water through rotary kiln |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621164A (en) * | 2017-09-22 | 2018-01-23 | 江苏亮盈科技股份有限公司 | A kind of continous way ion cathode material lithium modified device |
| CN110142106A (en) * | 2019-05-14 | 2019-08-20 | 佛山市蓝亚环保科技有限公司 | A kind of cooling screening machine of aluminium ash |
| CN112837878A (en) * | 2020-12-31 | 2021-05-25 | 横店集团东磁股份有限公司 | Rare earth-iron metal magnetic powder and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160217 |