CN206683392U - A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device - Google Patents
A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device Download PDFInfo
- Publication number
- CN206683392U CN206683392U CN201720240535.5U CN201720240535U CN206683392U CN 206683392 U CN206683392 U CN 206683392U CN 201720240535 U CN201720240535 U CN 201720240535U CN 206683392 U CN206683392 U CN 206683392U
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- China
- Prior art keywords
- kiln tail
- kiln
- tail smoke
- box body
- cement rotary
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Abstract
A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device disclosed in the utility model, including kiln tail smoke-box body, the top of kiln tail smoke-box body offers a dore furnace connected entrance, its bottom sides offers a cement rotary kiln connected entrance, a feed opening is offered in the middle part of the side wall of the kiln tail smoke-box body, the bottom of the kiln tail smoke-box body is extended to the blanking slope of the lower edge of the cement rotary kiln connected entrance formed with one by the lower edge of the feed opening, middle position on the blanking slope is provided with a baffle plate, when the material to get off from raw material tremie pipe passes through the baffle plate, partial material is kicked up and risen by kiln tail gas.The utility model matches regulative mode with kiln by increasing tertiary air with wind, increases the necking of kiln tail smoke-box and tertiary-air pipe this ventilation section area at two, reduces invalid SR, energy-saving.
Description
Technical field
It the utility model is related to cement rotary kiln technical field, more particularly to a kind of production suitable for cement industry clinker
The cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device.
Background technology
In clinker production process, grate-cooler is the critical host equipment in the sinter leaching system of cement plant, and it is led
It is that clinker is cooled down, conveyed to want function；Hot-air is provided for cement rotary kiln and dore furnace etc. simultaneously, is to burn till to be
The capital equipment of system recuperation of heat, the high warm air (First air) come out from grate-cooler are entered in cement rotary kiln, while in cement
Coal dust firing is sprayed into rotary kiln, kiln tail gas enter dore furnace tapering by kiln tail smoke-box, come from raw material tremie pipe
Raw material are entered in cement rotary kiln along kiln tail smoke-box slope, by adjusting tertiary air flapper valve aperture size, to adjust
In cement rotary kiln and tertiary air matching, keep the negative pressure of kiln tail in -500Pa, tertiary air outlet pressure in -300Pa or so,
So that about 60%-70% wind passes through from tertiary-air pipe.
It in clinker production process, when blown sands is more in clinker, can be deposited in tertiary-air pipe, increase tertiary air
Resistance, readjusted in production by progressively increasing tertiary air valve aperture in cement rotary kiln and the matching of tertiary air, when
After tertiary air valve standard-sized sheet, it can not just keep balancing again.Maintenance need to spend a large amount of manpower and materials to come to the collection in tertiary-air pipe every time
Material is cleared up, and environmental pollution is big and dangerous during construction.
Therefore, applicant carried out beneficial exploration and trial, result of the above problems is have found, will be detailed below being situated between
The technical scheme to continue is caused under this background.
Utility model content
Technical problem to be solved in the utility model：One kind is provided in view of the shortcomings of the prior art negative pressure tune is installed
The cement rotary kiln kiln tail smoke-box of regulating device, kiln tail smoke-box vacuum magnitude is adjusted by negative pressure adjusting device, so as to control water
Wind size, the interior wind of regulation cement rotary kiln and tertiary air ratio are used in mud rotary kiln, improves the resolution ratio of material in kiln, energy-conservation
Consumption reduction.
The technical problem that the utility model solves can be realized using following technical scheme：
A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device, including kiln tail smoke-box body, raw material blanking
Pipe and tertiary-air pipe, the top of the kiln tail smoke-box body offer a dore furnace connected entrance, and its bottom sides offers one
Cement rotary kiln connected entrance, the dore furnace connected entrance and cement rotary kiln connected entrance of the kiln tail smoke-box body respectively with dore furnace
Bottom of furnace body connected with cement rotary kiln kiln tail so that the kiln tail smoke-box body connects cement rotary kiln with dore furnace,
Offer a feed opening in the middle part of the side wall of the kiln tail smoke-box body, the bottom of the kiln tail smoke-box body is formed with one by described
The lower edge of feed opening extends to the blanking slope of the lower edge of the cement rotary kiln connected entrance, the lower end of the raw material tremie pipe with
The feed opening connection of the kiln tail smoke-box body, its other end are tilted upward and stretched out, and one end of the tertiary-air pipe connects
On being connected on the outside of the bottom of furnace body of dore furnace, its other end stretches out and is connected with tertiary air wind regime, in the tertiary-air pipe
It is provided with a tertiary air valve；Characterized in that, the middle position on the blanking slope is provided with a baffle plate, when from described
When the material that raw material tremie pipe gets off passes through the baffle plate, partial material is kicked up and risen by kiln tail gas.
In a preferred embodiment of the present utility model, the baffle plate is inserted by the lateral surface of the kiln tail smoke-box body
In the kiln tail smoke-box body, the inventory kicked up by kiln tail gas is adjusted by adjusting the insertion depth of the baffle plate.
In a preferred embodiment of the present utility model, the baffle plate is L-shaped baffle plate, and the side of the L-shaped baffle plate is leaned on
The blanking slope it is domatic on, its opposite side is domatic vertical with the blanking slope.
In a preferred embodiment of the present utility model, the baffle plate is made of heat resisting steel.
As a result of technical scheme as above, the beneficial effects of the utility model are：Due in kiln tail smoke-box body
The middle position on blanking slope be provided with a baffle plate, by kiln tail when the partial material got off from raw material tremie pipe passes through baffle plate
Waste gas is kicked up and risen, and the negative pressure of kiln tail is also increased, and kiln ventilation is accordingly reduced.When in normal production, by tertiary air
Valve wide open, the inventory kicked up by kiln tail gas is adjusted by the insertion depth of controllable register, so as to adjust the negative of kiln tail
Pressure so that it matches with tertiary air outlet negative pressure.When need clear up tertiary-air pipe in when gathering materials, keep systematic air flow not
Become, the insertion depth of baffle plate is adjusted to maximum, operation about 8 hours can be clean by the processing of gathering materials in tertiary-air pipe.This practicality
It is new to match regulative mode with wind with kiln by increasing tertiary air, increase the necking of kiln tail smoke-box and tertiary-air pipe this at two
Ventilation section area, reduce invalid SR, it is energy-saving.In addition, the small volume of baffle plate of the present utility model, system
Cause relatively low, be easy to regulation and sealing.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged drawing at Fig. 1 A.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1, what is provided in figure is a kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device, including kiln
Tail smoke-box body 100, raw material tremie pipe 200 and tertiary-air pipe 300.
The top of kiln tail smoke-box body 100 offers a dore furnace connected entrance 110, and its bottom sides offers a cement and returned
Rotary kiln connected entrance 120, the dore furnace connected entrance 110 and cement rotary kiln connected entrance 120 of kiln tail smoke-box body 100 respectively with decomposition
The bottom of furnace body and cement rotary kiln kiln tail 20 of stove 10 connect so that kiln tail smoke-box body 100 is by cement rotary kiln 20 and decomposes
Stove 10 connects.A feed opening 130 is offered in the middle part of the side wall of kiln tail smoke-box body 100, the bottom of kiln tail smoke-box body 100 is formed
There is the blanking slope 140 of a lower edge that cement rotary kiln connected entrance 120 is extended to by the lower edge of feed opening 130.
The lower end 210 of raw material tremie pipe 200 is connected with the feed opening 130 of kiln tail smoke-box body 100, and its other end 220 inclines
Obliquely and stretch out.On one end 310 of tertiary-air pipe 300 is connected on the outside of the bottom of furnace body of dore furnace 10, its other end
320 stretch out and are connected with tertiary air wind regime, and an air intake for being used to adjust tertiary-air pipe 300 is provided with tertiary-air pipe 300
The tertiary air valve of amount.
Middle position on the blanking slope 140 of kiln tail smoke-box body 100 is provided with a baffle plate 400, when under raw material
When the material that expects pipe 200 is got off passes through baffle plate 400, partial material is kicked up and risen by kiln tail gas, and the negative pressure of kiln tail is also therewith
Rise, kiln ventilation are accordingly reduced.Preferably, baffle plate 400 inserts kiln tail smoke-box body by the lateral surface of kiln tail smoke-box body 100
In 100, thus the inventory kicked up by kiln tail gas can be adjusted by the insertion depth of controllable register 400, so as to adjust
Save the negative pressure of kiln tail so that it matches with tertiary air outlet negative pressure.When need clear up tertiary-air pipe in when gathering materials, maintainer
Air quantity of uniting is constant, the insertion depth of baffle plate 400 is adjusted into maximum, operation about 8 hours can be by the place that gathers materials in tertiary-air pipe 300
Reason is clean.
Referring to Fig. 2, in the present embodiment, baffle plate 400 is L-shaped baffle plate, and the side 410 of the L-shaped baffle plate leans against kiln tail smoke-box
The blanking slope 140 of body 100 it is domatic on, its opposite side 420 is domatic with the blanking slope 140 of kiln tail smoke-box body 100
Vertically.Baffle plate 400 is made of heat resisting steel, ensures that baffle plate 400 in high temperature environments being capable of normal use.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (4)
1. a kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device, including kiln tail smoke-box body, raw material tremie pipe
And tertiary-air pipe, the top of the kiln tail smoke-box body offer a dore furnace connected entrance, its bottom sides offers a water
Mud rotary kiln connected entrance, the dore furnace connected entrance and cement rotary kiln connected entrance of the kiln tail smoke-box body respectively with dore furnace
Bottom of furnace body connects with cement rotary kiln kiln tail so that the kiln tail smoke-box body connects cement rotary kiln with dore furnace, institute
State and a feed opening is offered in the middle part of the side wall of kiln tail smoke-box body, the bottom of the kiln tail smoke-box body is formed with one by under described
The lower edge of material mouth extends to the blanking slope of the lower edge of the cement rotary kiln connected entrance, the lower end of the raw material tremie pipe and institute
The feed opening connection of kiln tail smoke-box body is stated, its other end is tilted upward and stretched out, one end connection of the tertiary-air pipe
On on the outside of the bottom of furnace body of dore furnace, its other end stretches out and is connected with tertiary air wind regime, is set in the tertiary-air pipe
It is equipped with a tertiary air valve；Characterized in that, the middle position on the blanking slope is provided with a baffle plate, when from the life
When the material that material tremie pipe gets off passes through the baffle plate, partial material is kicked up and risen by kiln tail gas.
2. the cement rotary kiln kiln tail smoke-box as claimed in claim 1 for being provided with negative pressure adjusting device, it is characterised in that described
Baffle plate is inserted in the kiln tail smoke-box body by the lateral surface of the kiln tail smoke-box body, deep by the insertion for adjusting the baffle plate
Spend to adjust the inventory kicked up by kiln tail gas.
3. the cement rotary kiln kiln tail smoke-box as claimed in claim 2 for being provided with negative pressure adjusting device, it is characterised in that described
Baffle plate is L-shaped baffle plate, the side of the L-shaped baffle plate lean against the blanking slope it is domatic on, its opposite side and the blanking are oblique
Slope it is domatic vertical.
4. being provided with the cement rotary kiln kiln tail smoke-box of negative pressure adjusting device as claimed any one in claims 1 to 3, it is special
Sign is that the baffle plate is made of heat resisting steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240535.5U CN206683392U (en) | 2017-03-13 | 2017-03-13 | A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240535.5U CN206683392U (en) | 2017-03-13 | 2017-03-13 | A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206683392U true CN206683392U (en) | 2017-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720240535.5U Withdrawn - After Issue CN206683392U (en) | 2017-03-13 | 2017-03-13 | A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206683392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907922A (en) * | 2017-03-13 | 2017-06-30 | 上海万澄环保科技有限公司 | A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device |
-
2017
- 2017-03-13 CN CN201720240535.5U patent/CN206683392U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907922A (en) * | 2017-03-13 | 2017-06-30 | 上海万澄环保科技有限公司 | A kind of cement rotary kiln kiln tail smoke-box for being provided with negative pressure adjusting device |
| CN106907922B (en) * | 2017-03-13 | 2022-12-23 | 上海万澄环保科技有限公司 | Kiln tail smoke chamber of rotary cement kiln provided with negative pressure adjusting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171128 Effective date of abandoning: 20221223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171128 Effective date of abandoning: 20221223 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |