CN203464692U - Rotary kiln and thermal vibrating screen thereof - Google Patents
Rotary kiln and thermal vibrating screen thereof Download PDFInfo
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- CN203464692U CN203464692U CN201320466182.2U CN201320466182U CN203464692U CN 203464692 U CN203464692 U CN 203464692U CN 201320466182 U CN201320466182 U CN 201320466182U CN 203464692 U CN203464692 U CN 203464692U
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- rotary kiln
- thermal
- kiln
- vibrating screen
- oscillating screen
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Abstract
The utility model discloses a rotary kiln and a thermal vibrating screen thereof. On the basis of the original design concept, the structure for screening dust, namely the thermal vibrating screen is added. The thermal vibrating screen is connected with kiln tail bayonet iron through a bolt at the end portion, and a plurality of thermal vibrating screens are combined together to form a circle. When rotating, the rotary kiln drives the kiln tail bayonet iron to rotate, and the thermal vibrating screen connected with the kiln tail bayonet iron rotates together. Materials drop on a chute body through a slide carriage and slide onto the thermal vibrating screen through the chute body, the thermal vibrating screen is provided with screening holes identical in size, the screening holes screen fine dust into a dust hopper below the screening holes, and too much dust is prevented from entering the kiln to cause ring forming. A material guide plate is arranged on the thermal vibrating screen, therefore, the materials can be fed into the rotary kiln well, and backflow of material is avoided. By means of the thermal vibrating screen, possibility of ring forming is reduced, service life of the rotary kiln is prolonged, energy is saved, yield is increased, cost is reduced, and benefits are brought to users.
Description
Technical field
The utility model relates to rotary kiln and technical field, particularly a kind of rotary kiln and heated oscillating screen thereof.
Background technology
Rotary kiln is one of capital equipment during acid pellet is produced.During production, pelletizing is transported to rotary kiln from drying grate, and in rotary kiln, constantly upset is moved to kiln hood, and the spray gun of kiln hood heats pelletizing, and the pellet roasting of preheating reaches after requirement, unloads that through gravity flow screen, to be sent to central cooler cooling from kiln hood.
In kiln, ring formation is common accident during rotary kiln is produced.Its harm has following several respects:
The one, reduce production capacity, increase labour intensity; The 2nd, increase machine utilization; The 3rd, waste energy etc.
In kiln ring formation be by fine under cementation, the thick material of a circle of forming on the circumference of kiln inwall.Ring formation has more present high temperate zone.In high temperate zone, tie kliner coating and ring formation, to rotary kiln, produce all influential.Kliner coating can be protected the material lining of this band, does not make it be worn prematurely, and can reduce scattering and disappearing of kiln body heat content.If but at combustion zone ring formation, will dwindle the resistance of motion of section and increase gas and the material of kiln.And ring formation also can be as insulation board, make the heat of combustion zone can not be radiated the cold junction of kiln, result further raises combustion zone temperature, and the condition of work of this belt material is worsened.
The reason of ring formation of rotary kiln is many-sided, and wherein in pelletizing, powder is all the common cause that causes ring formation of rotary kiln.The many reasons of powder in pelletizing, the one, green-ball screening efficiency is poor, makes to carry secretly in pelletizing little mother bulb or lump material; The 2nd, green-ball structure on drying grate is damaged, cracking or explosion; The 3rd, pre-hot-bulb intensity difference.
Material of the prior art enters kiln flow process as shown in Figure 1, and the material on drying grate, by slide carriage 11, falls on chute body 12, enters rotary kiln, and wherein 13 is kiln tail bayonet socket iron.This structure is all brought material, dust etc. in kiln body, easily causes the ring formation of rotary kiln.
Therefore, for above-mentioned situation, how to reduce ring formation of rotary kiln phenomenon, become those skilled in the art's important technological problems urgently to be resolved hurrily.
Utility model content
In view of this, the utility model provides a kind of heated oscillating screen, can be in the kiln body that powder enters rotary kiln be controlled in source, thus effectively avoid ring formation phenomenon.
The utility model also provides a kind of rotary kiln of applying above-mentioned heated oscillating screen,
For achieving the above object, the utility model provides following technical scheme:
A heated oscillating screen, is applied to the material input of rotary kiln, and described heated oscillating screen has the sieve plate coordinating for the chute body with described rotary kiln, the installation portion being connected with kiln tail bayonet socket iron for described rotary kiln.
Preferably, on described sieve plate, offer the impartial sieve aperture of size.
Preferably, the maximum gauge of described sieve aperture is 7mm.
Preferably, the front of described sieve plate is also provided with the stock guide of the described installation portion of guiding.
Preferably, the back side of described sieve plate is also provided with ribs.
Preferably, described installation portion is specially a plurality of bolt connecting holes of the end that is opened in described heated oscillating screen.
A rotary kiln, the material input of described rotary kiln is provided with the heated oscillating screen of the above.
Preferably, described heated oscillating screen and described Yao Wei bayonet socket Tie Tong cross bolt arrangement and are connected and fixed.
Preferably, described rotary kiln also comprises the ash bucket that is arranged on its outer wall afterbody.
Preferably, described rotary kiln comprises a plurality of described heated oscillating screens, and a plurality of described heated oscillating screens are arranged and are combined to form an annular.
From above-mentioned technical scheme, can find out, the heated oscillating screen that the utility model provides, can be in the kiln body that powder enters rotary kiln be controlled in source, thereby effectively avoids ring formation phenomenon.
The utility model also provides the rotary kiln of applying above-mentioned heated oscillating screen, and this structure has reduced the possibility of ring formation to a certain extent, thereby improves the service life of rotary kiln, saves the energy, improves output, reduces costs, and to user, brings benefit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram that material of the prior art enters kiln flow process;
The material that Fig. 2 provides for the utility model embodiment enters the structural representation of kiln flow process;
The structural representation of its sieve aperture of heated oscillating screen that Fig. 3 provides for the utility model embodiment;
The heated oscillating screen that Fig. 4 provides for the utility model embodiment and the structural representation of kiln tail bayonet socket iron.
Wherein, 11 is slide carriage, and 12 is chute body, and 13 is kiln tail bayonet socket iron;
21 is slide carriage, and 22 is chute body, and 23 is kiln tail bayonet socket iron, and 24 is heated oscillating screen, and 241 is sieve aperture, and 242 is stock guide, and 243 is ribs.
The specific embodiment
The utility model discloses a kind of heated oscillating screen, can be in the kiln body that powder enters rotary kiln be controlled in source, thus effectively avoid ring formation phenomenon.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-Fig. 4, Fig. 1 is the schematic diagram that material of the prior art enters kiln flow process; The material that Fig. 2 provides for the utility model embodiment enters the structural representation of kiln flow process; The structural representation of its sieve aperture of heated oscillating screen that Fig. 3 provides for the utility model embodiment; The heated oscillating screen that Fig. 4 provides for the utility model embodiment and the structural representation of kiln tail bayonet socket iron.
The heated oscillating screen that the utility model embodiment provides, be applied to the material input (being kiln tail) of rotary kiln, its core improvement is, this heated oscillating screen has the sieve plate that the chute body 22 for same rotary kiln coordinates, the installation portion being connected with kiln tail bayonet socket iron 23 for same rotary kiln.
When rotary kiln self rotates, drive kiln tail bayonet socket iron 23 to rotate, the heated oscillating screen connected with kiln tail bayonet socket iron 23 rotates together with also.When material is fallen on chute body 22 through slide carriage 21, then while sliding on heated oscillating screen by chute body 22, the sieve aperture on its sieve plate sieves tiny dust fall, and avoids too many dust to enter in kiln, causes ring formation phenomenon, and the material after improvement enters kiln flow process as shown in Figure 2.
From above-mentioned technical scheme, can find out, the heated oscillating screen that the utility model embodiment provides, can be in the kiln body that powder enters rotary kiln be controlled in source, thereby effectively avoid ring formation phenomenon, improve the service life of rotary kiln, save the energy, improve output, reduce costs, to user, bring benefit.
Please refer to shown in Fig. 3, on sieve plate, offer the impartial sieve aperture 241 of size.
Further, in view of the 8～16mm that typically has a diameter from of material, in the specific embodiment providing at this programme, the maximum gauge of sieve aperture is 7mm.Certainly, those skilled in the art can make suitable adjustment to the concrete structure size of sieve aperture according to actual needs, do not repeat them here.
As preferably, the front of sieve plate is also provided with the stock guide 242 of guiding installation portion, can well material be sent in rotary kiln, avoids occurring the phenomenon of batch turning.The end that heated oscillating screen is relative with installation portion is also provided with vertical baffle plate.
In order further to optimize above-mentioned technical scheme, the back side of sieve plate is also provided with ribs 243, to guarantee fastness and the reliability of total.
Be understandable that, the front and back of sieve plate is for its working face as mentioned herein, and as shown in Figure 3 and Figure 4, material, from the top of sieve plate, is front, and powder, through sieve aperture on it, is come its below, the i.e. back side.
The connected mode of heated oscillating screen and kiln tail bayonet socket iron 23 has a variety of, such as clamping, bonding even welding.In the specific embodiment providing at this programme, installation portion is a plurality of bolt connecting holes that are opened in the end of heated oscillating screen, carries out bolt be connected and fixed for same kiln tail bayonet socket iron 23.
The utility model embodiment also provides a kind of rotary kiln, and its core improvement is, the material input of this rotary kiln is provided with above-mentioned heated oscillating screen.This structure has reduced the possibility of ring formation to a certain extent, thereby improves the service life of rotary kiln, saves the energy, improves output, reduces costs, and to user, brings benefit.
Please refer to shown in Fig. 4, heated oscillating screen and kiln tail bayonet socket iron 23 are connected and fixed by bolt arrangement, and a plurality of bolts hole of rationally arranging have guaranteed the stability of syndeton.
The rotary kiln that the utility model embodiment provides, also comprises the ash bucket that is arranged on its outer wall afterbody, for collecting dust, is convenient to dismantle in time cleaning.
In order further to optimize above-mentioned technical scheme, rotary kiln comprises a plurality of heated oscillating screens, and a plurality of heated oscillating screens are arranged and are combined to form an annular, make total be more suitable for rotary kiln.
In sum, the rotary kiln that the utility model embodiment provides, in former design concept, we increase a kind of structure that screens out dust: heated oscillating screen (see heat shake sieve and kiln tail bayonet socket iron schematic diagram).It is connected with kiln tail bayonet socket iron by the bolt of end, and several heated oscillating screens are combined and formed a circle.When rotary kiln self rotates, drive kiln tail bayonet socket iron to rotate, the heated oscillating screen connected with kiln tail bayonet socket iron rotates together with also.When material (material diameter 8～16mm) is fallen on chute body through slide carriage, while sliding on heated oscillating screen by chute body again, heated oscillating screen self has the impartial sieve aperture (sieve aperture maximum is 7mm) of size, sieve aperture is fallen tiny dust sieve in the ash bucket of its below, avoid too many dust to enter in kiln, cause ring formation phenomenon (after seeing transformation, material enters kiln flow chart).On heated oscillating screen, design a stock guide, can well material be sent in rotary kiln, avoid occurring the phenomenon of batch turning.This structure has reduced the possibility of ring formation to a certain extent, thereby improves the service life of rotary kiln, saves the energy, improves output, reduces costs, and to user, brings benefit.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a heated oscillating screen, is applied to the material input of rotary kiln, it is characterized in that, described heated oscillating screen has the sieve plate coordinating for the chute body with described rotary kiln, the installation portion being connected with kiln tail bayonet socket iron for described rotary kiln.
2. heated oscillating screen according to claim 1, is characterized in that, offers the impartial sieve aperture of size on described sieve plate.
3. heated oscillating screen according to claim 2, is characterized in that, the maximum gauge of described sieve aperture is 7mm.
4. heated oscillating screen according to claim 3, is characterized in that, the front of described sieve plate is also provided with the stock guide of the described installation portion of guiding.
5. heated oscillating screen according to claim 4, is characterized in that, the back side of described sieve plate is also provided with ribs.
6. heated oscillating screen according to claim 5, is characterized in that, described installation portion is specially a plurality of bolt connecting holes of the end that is opened in described heated oscillating screen.
7. a rotary kiln, is characterized in that, the material input of described rotary kiln is provided with the heated oscillating screen as described in claim 1-6 any one.
8. rotary kiln according to claim 7, is characterized in that, described heated oscillating screen and described Yao Wei bayonet socket Tie Tong cross bolt arrangement and be connected and fixed.
9. rotary kiln according to claim 8, is characterized in that, described rotary kiln also comprises the ash bucket that is arranged on its outer wall afterbody.
10. rotary kiln according to claim 9, is characterized in that, described rotary kiln comprises a plurality of described heated oscillating screens, and a plurality of described heated oscillating screens are arranged and are combined to form an annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466182.2U CN203464692U (en) | 2013-07-31 | 2013-07-31 | Rotary kiln and thermal vibrating screen thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466182.2U CN203464692U (en) | 2013-07-31 | 2013-07-31 | Rotary kiln and thermal vibrating screen thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464692U true CN203464692U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320466182.2U Expired - Fee Related CN203464692U (en) | 2013-07-31 | 2013-07-31 | Rotary kiln and thermal vibrating screen thereof |
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| CN (1) | CN203464692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831056A (en) * | 2015-03-17 | 2015-08-12 | 北京首钢国际工程技术有限公司 | Preheating and roasting method of chromium concentrate pellet |
-
2013
- 2013-07-31 CN CN201320466182.2U patent/CN203464692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831056A (en) * | 2015-03-17 | 2015-08-12 | 北京首钢国际工程技术有限公司 | Preheating and roasting method of chromium concentrate pellet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU HONGDA SPECIAL STEEL MACHINERY PLANT CO., LTD. Assignor: Zhu Qianglong Contract record no.: 2015320000259 Denomination of utility model: Rotary kiln and thermal vibrating screen thereof Granted publication date: 20140305 License type: Exclusive License Record date: 20150420 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20160731 |