CN207881497U - A kind of cement rotary kiln multistage pre-heating system - Google Patents
A kind of cement rotary kiln multistage pre-heating system Download PDFInfo
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- CN207881497U CN207881497U CN201820160073.0U CN201820160073U CN207881497U CN 207881497 U CN207881497 U CN 207881497U CN 201820160073 U CN201820160073 U CN 201820160073U CN 207881497 U CN207881497 U CN 207881497U
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Abstract
The utility model is related to cement rotary kiln field more particularly to a kind of cement rotary kiln multistage pre-heating system, kiln body includes that preheating pond and reaction thorax, loading hopper are connected by feed pipe with feed inlet, and the side wall for preheating pond is equipped with several burners；Further include two reducers being plugged between reaction thorax, respectively the first reducer and the second reducer, the inner wall of first reducer and the second reducer is equipped with multiple lifting blades, and lifting blade is less than the half of the first reducer and the second reducer maximum radius towards the length of axis direction；The utility model is when kiln body is in rotation, preheating pond can effectively retain cement slurry, make raw material extended residence time in preheating pond, raw material are taken up with the rotation of the lifting blade in the first reducer and the second reducer, increase residence time of the raw material in kiln body, it is big to substitute conventional cement rotary kiln design length, reduces the cost input of engineering, while ensureing that pre-heat effect is more preferable.
Description
Technical field
The utility model is related to cement rotary kiln field more particularly to a kind of cement rotary kiln multistage pre-heating systems.
Background technology
In manufacture of cement, need with cement rotary kiln come calcining cement raw material, cement rotary kiln that can be current is to raw material
Preheating be all the outer preheater of kiln used, there is following disadvantages for this structure：On the one hand, the preheating of cement rotary kiln
Device cost of investment is higher, and especially the hydraulic system in preheater is expensive, and need to often safeguard；On the other hand, in order to carry
The combustion rate of high raw material must just take the mode for the length for extending rotary kiln, increase energy consumption.Therefore, time of the form
Rotary kiln often can not reach design requirement in calcining cement raw material, first, can not burn fully, second is that rotary kiln designs
Length is big, and the cost input of engineering is high.
Utility model content
The purpose of this utility model mainly according to the deficiency present on, provides a kind of cement rotary kiln multistage preheating system
System.
To achieve the goals above, the technical solution of the utility model is：
A kind of cement rotary kiln multistage pre-heating system, including kiln body, the kiln body slant setting, the kiln body higher one
End is kiln hood, and lower one end is kiln tail, and the kiln body includes positioned at the preheating pond at the kiln hood end and far from the kiln hood
It holds and reacts thorax with what the preheating pond was connected, the preheating pond is reacted between thorax by one with described in the kiln body
The annular and separation circle of wall is separated, and the side wall in the preheating pond is equipped with several burners, and the preheating pond is located at the kiln hood
One end open up feed inlet, the top of the kiln hood is equipped with loading hopper, and the loading hopper passes through feed pipe and the charging
Mouth is connected, and one end that the reaction thorax is located at the kiln tail is equipped with discharge port；The kiln body further includes being plugged in the reaction
The reaction thorax is divided into three sections of two reducers, respectively the first reducer and the second reducer between thorax, described the
The internal diameter of one reducer and second reducer is all higher than the internal diameter of the reaction thorax, and first reducer and described the
The axis of two reducers is consistent with the reaction axis of thorax；The inner wall edge of first reducer and second reducer
It is equipped with the lifting blade of multiple annulars on length direction, the centers of circle of multiple lifting blades is located at first reducer and described
On the axis of second reducer, length of the lifting blade towards first reducer and the axis direction of second reducer
Degree is less than first reducer and the half of the second reducer maximum radius.
Be preferably located at the reaction thorax between first reducer and second reducer inner wall be equipped with to
The baffle that axis extends, the width of the baffle are less than the half of the reaction thorax radius.
Preferably, the burner is at least 6, the axisymmetrical distribution in the relatively described preheating pond of 6 burners.
Preferably, the kiln body is equipped with fire brick layer, heat insulation layer and outer housing successively from inside to outside.
Preferably, the angle of inclination of the kiln body is horizontal by 10 ° -30 °.
Preferably, the pore radius of the annular and separation circle is the half of the kiln body radius.
Preferably, the radius of the reaction thorax be first reducer and the second reducer radius two/
One.
Preferably, it is sealed and is tightly connected by machine between the feed pipe and the feed inlet.
As a result of above technical scheme, the utility model has the advantages that：The utility model is tilting kiln
The kiln hood position of body is additionally arranged preheating pond, and when kiln body is in rotation, preheating pond can effectively retain cement slurry, make life
Expect raw material extended residence time in preheating pond, so that the burner in preheating pond is adequately heated to raw material, effectively
Quantity combusted and burnout rate are improved, meanwhile, when raw material fall into reaction chamber by preheating pond and fall into the first reducer and the second change
Buffering in diameter section, whole process raw material adequately carry out heat exchange with thermal current, and raw material are with the first reducer and the second reducing
The rotation of lifting blade in section and be taken up, increase residence time of the raw material in kiln body, returned so as to substitute conventional cement
Rotary kiln design length is big, reduces the cost input of engineering, while ensureing that pre-heat effect is more preferable, the cement rotary kiln of the utility model
Multistage pre-heating system is simple in structure, it is energy saving, save cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, kiln body；101, fire brick layer；102, heat insulation layer；103, outer housing；11, kiln hood；12, kiln tail；13, pre-
Hot pond；131, nozzle；132, discharge port；133, feed inlet；14, thorax is reacted；15, annular and separation circle；16, the first reducer；
161, lifting blade；17, the second reducer；18, machine seals；2, loading hopper；21, feed pipe.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It removes, be fully described by, wherein the drawings are for illustrative purposes only and are merely schematic diagrams rather than pictorial diagram, Bu Nengli
Solution is the limitation to this patent；In order to better illustrate the utility model embodiment, the certain components of attached drawing have omission, amplification
Or reduce, do not represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation in attached drawing
It may omit and will be understood by.
The described embodiments are only a part of the embodiments of the utility model for the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment is described in detail：
Such as Fig. 1, a kind of cement rotary kiln multistage pre-heating system, including kiln body 1,1 slant setting of the kiln body, the kiln body
1 higher one end is kiln hood 11, and lower one end is kiln tail 12, and the kiln body 1 includes positioned at the preheating pond at 11 end of the kiln hood
13 and far from 11 end of the kiln hood and with it is described preheating pond 13 be connected react thorax 14, the preheating pond 13 is reacted with described
The annular and separation circle 15 for being set to 1 inner wall of the kiln body between thorax 14 by one is separated, and the side wall in the preheating pond 13 is equipped with
Several burners 131, one end that the preheating pond 13 is located at the kiln hood 11 open up feed inlet 133, the top of the kiln hood 11
Equipped with loading hopper 2, the loading hopper 2 is connected by feed pipe 21 with the feed inlet 133, and the reaction thorax is located at institute
The one end for stating kiln tail is equipped with discharge port；The kiln body 1 further includes dividing the reaction thorax 14 between being plugged in the reaction thorax 14
It is divided into three sections of two reducers, respectively the first reducer 16 and the second reducer 17, first reducer 16 and described
The internal diameter of second reducer 17 is all higher than the internal diameter of the reaction thorax 14, and first reducer 16 and second reducer
17 axis is consistent with the reaction axis of thorax 14；The inner wall edge of first reducer 16 and second reducer 17
The lifting blade 161 of multiple annulars is equipped on length direction, the center of circle of multiple lifting blades 161 is located at first reducer
16 and second reducer 17 axis on, the lifting blade 161 is towards first reducer 16 and second reducing
The length of the axis direction of section 17 be less than first reducer 16 and 17 maximum radius of the second reducer two/
One.
The utility model is additionally arranged preheating pond in the kiln hood position for tilting kiln body, when kiln body is in rotation, preheats pond
Cement slurry can be effectively retained, raw material raw material extended residence time in preheating pond is made, makes burner in preheating pond can be with
Adequately raw material are heated, effectively raise quantity combusted and burnout rate, meanwhile, when raw material fall into reaction by preheating pond
Chamber simultaneously falls into buffering in the first reducer and the second reducer, and whole process raw material adequately carry out heat exchange with thermal current, raw
Material is taken up with the rotation of the lifting blade in the first reducer and the second reducer, when increasing stop of the raw material in kiln body
Between, it is big so as to substitute conventional cement rotary kiln design length, the cost input of engineering is reduced, while ensureing pre-heat effect more
It is good, the cement rotary kiln multistage pre-heating system of the utility model is simple in structure, it is energy saving, save cost.
In the present embodiment, the reaction thorax 14 between first reducer 16 and second reducer 17
Inner wall be equipped with the baffle 141 that extends to axis, the width of the baffle 141, i.e. baffle 141 extend towards axis direction
Length is less than the half of reaction 14 radius of thorax.Baffle is rotated as reaction chamber 14 rotates, and raw material is made to enter instead
It is taken up by baffle after answering chamber 14, adequately carries out heat exchange with thermal current, keep pre-heat effect more preferable, while also improving raw material anti-
The residence time in chamber 14 is answered, to preferably improve heating effect.
In the present embodiment, the burner 131 is at least 6, the axis in the relatively described preheating pond 13 of 6 burners 131
Line is symmetrical, specifically, burner 131 is symmetrical arranged, to the raw material in preheating pond 13 directly add in rotary course
Heat improves pre-heat effect.
In the present embodiment, the kiln body 1 is equipped with fire brick layer 101, heat insulation layer 102 and outer housing successively from inside to outside
103。
In the present embodiment, the angle of inclination of the kiln body 1 is horizontal by 10 ° -30 °.Due to being obliquely installed, turning round
During kiln rotates, the sufficient raw material of burning progress into reaction chamber 14 in preheating pond 13, and in its own gravity of raw material
Enter the first reducer 16 and the second reducer 17 along reaction chamber 14 under effect.
In the present embodiment, the pore radius of the annular and separation circle 15 is the half of 1 radius of the kiln body.Annular point
The pore radius of spacer ring is smaller, and raw material fall into the amount in reaction chamber 14 with regard to smaller, and pore radius is set as the half of 1 radius of kiln body,
The Optimal Control amount in reaction chamber 14 is fallen into for raw material.
In the present embodiment, it is tightly connected by machine envelope 18 between the feed pipe 21 and the feed inlet 133.By setting
Set machine envelope 18, when kiln body 1 rotate, feed inlet 133 machine envelope 18 under the action of with feed pipe 21 sealed connection and it is opposite
Rotation avoids the outside of hot gas in kiln body 1 from distributing, and machine envelope 18 can to greatest extent reduce between feed inlet and feed pipe 21
Frictional force.
Obviously, above-described embodiment of the utility model patent is only intended to clearly illustrate made by the utility model patent
Citing, and it is not the restriction to the embodiment of the utility model patent.For those of ordinary skill in the art,
Other different forms of changes or modifications may be made based on the above description.There is no need and unable to all realities
The mode of applying is exhaustive.It is all within the spirit and principle of the utility model patent made by any modification, equivalent replacement and change
Into etc., it should be included within the utility model scope of the claims.
Claims (7)
1. a kind of cement rotary kiln multistage pre-heating system, it is characterised in that:Including kiln body (1), kiln body (1) slant setting,
The higher one end of the kiln body (1) is kiln hood (11), and lower one end is kiln tail (12), and the kiln body (1) includes positioned at described
The preheating pond (13) at kiln hood (11) end and the separate kiln hood (11) are held and react thorax with what preheating pond (13) was connected
(14), preheating pond (13) and the annular and separation circle for reacting and being set to the kiln body (1) inner wall by one between thorax (14)
(15) it is separated, the side wall of preheating pond (13) is equipped with several burners (131), and the preheating pond (13) is located at the kiln
One end of head (11) opens up feed inlet (133), and the top of the kiln hood (11) is equipped with loading hopper (2), the loading hopper (2)
It is connected with the feed inlet (133) by feed pipe (21), one end that the reaction thorax (14) is located at the kiln tail (12) is set
There is discharge port (132)；
The kiln body (1) further includes two that the reaction thorax (14) is divided into three sections between being plugged in the reaction thorax (14)
Reducer, respectively the first reducer (16) and the second reducer (17), first reducer (16) and second reducing
The internal diameter of section (17) is all higher than the internal diameter of the reaction thorax (14), and first reducer (16) and second reducer
(17) axis is consistent with the axis of reaction thorax (14)；First reducer (16) and second reducer (17)
Inner wall the lifting blades (161) of multiple annulars is equipped on along its length, the center of circle of multiple lifting blades (161) is located at institute
On the axis for stating the first reducer (16) and second reducer (17), the lifting blade (161) is towards first reducing
The length of the axis direction of section (16) and second reducer (17) is less than first reducer (16) and second change
The half of diameter section (17) maximum radius.
2. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：Become positioned at described first
The inner wall of the reaction thorax (14) between diameter section (16) and second reducer (17) is equipped with the baffle extended to axis
(141), the width of the baffle (141) is less than the half of described reaction thorax (14) radius.
3. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：The burner (131)
At least 6, the axisymmetrical distribution of relatively described preheating pond (13) of 6 burners (131).
4. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：The kiln body (1) by
It is equipped with fire brick layer (101), heat insulation layer (102) and outer housing (103) successively from inside to outside.
5. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：The kiln body (1)
Angle of inclination is horizontal by 10 ° -30 °.
6. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：The annular and separation circle
(15) pore radius is the half of the kiln body (1) radius.
7. a kind of cement rotary kiln multistage pre-heating system according to claim 1, it is characterised in that：The feed pipe (21)
It is tightly connected by machine envelope (18) between the feed inlet (133).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160073.0U CN207881497U (en) | 2018-01-31 | 2018-01-31 | A kind of cement rotary kiln multistage pre-heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160073.0U CN207881497U (en) | 2018-01-31 | 2018-01-31 | A kind of cement rotary kiln multistage pre-heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881497U true CN207881497U (en) | 2018-09-18 |
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ID=63509853
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820160073.0U Active CN207881497U (en) | 2018-01-31 | 2018-01-31 | A kind of cement rotary kiln multistage pre-heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728930A (en) * | 2021-01-05 | 2021-04-30 | 南京春又绿科技有限公司 | Roasting rotary kiln |
-
2018
- 2018-01-31 CN CN201820160073.0U patent/CN207881497U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728930A (en) * | 2021-01-05 | 2021-04-30 | 南京春又绿科技有限公司 | Roasting rotary kiln |
| CN112728930B (en) * | 2021-01-05 | 2022-07-29 | 河南鑫诚耐火材料股份有限公司 | Roasting rotary kiln |
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