CN1032652A - The equipment of successive calcination of powdered materials - Google Patents
The equipment of successive calcination of powdered materials Download PDFInfo
- Publication number
- CN1032652A CN1032652A CN 87107166 CN87107166A CN1032652A CN 1032652 A CN1032652 A CN 1032652A CN 87107166 CN87107166 CN 87107166 CN 87107166 A CN87107166 A CN 87107166A CN 1032652 A CN1032652 A CN 1032652A
- Authority
- CN
- China
- Prior art keywords
- calcining
- conduit
- equipment
- rotary kiln
- pipe
- 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.)
- Withdrawn
Links
Landscapes
- Furnace Details (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
In the equipment of calcined powder shape material, a calcining compartment 4 is arranged, there is an axial combustion air supply pipe 7 its underpart, and its round shape partly has a tangential combustion air supply pipe 8, has a fuel to send pipe 18 to 7,8 of two supply pipes.Almost completely the incinerating starting material are delivered to the last oblique portion of calcining conduit 3 by 4 tops, chamber, and conduit 3 is departed from out by rotary kiln 1.The declivity portion of the square cross-section of conduit 3 is connecting the foot of rotary kiln 1, and there is the cyclone head of square cross-section the top, top of circular cross section, and this head is being connected cyclonic separator, and this separator is delivered to preheater to gas, and the material after the calcining is delivered to rotary kiln.
Description
The present invention is about the equipment of successive calcination of powdered materials, the material during particularly cement is made before rotary kiln thermal treatment.This equipment comprises that is given a hot device, a calcining conduit, a calcining compartment, a cyclonic separator, a rotary kiln, refractory liner, fuel feeder, gas and materials supply device and discharger.
The equipment of calcination of powdered materials of being used for that has earlier generally includes a tracheae and is connected rotary kiln and giving between the hot device of separating, perhaps calcining compartment be installed in rotary kiln and the heat exchanger that separates between kiln gas flow in, perhaps in the parallel heat exchange along separate routes that connects from the combustion air of condenser.
The other pattern of this equipment correspondingly is equipped with the band combustion air, the mixing section of fuel and raw material supply pipe, this chamber be directly connected to rotary kiln and the heat exchanger that separates between gas duct.
The shortcoming of aforesaid device mainly is because gas, starting material and fuel mix are insufficient, and in reaction zone short relatively mixture residence time, particularly solid-fuelled incomplete combustion has appearred, low-level starting material calcining, and the reduction of efficient in the inevitable heat exchanging process because from the temperature of calciner expellant gas than accessible height.
An object of the present invention is to get rid of the deficiency and the shortcoming of above-mentioned prior art, a kind of improved equipment that is used for calcination of powdered materials is provided.
According to characteristics of the present invention, calcining compartment has a vertical component upwards to incorporate a sloping portion into, and an axial combustion-aid air pipe is arranged in its bottom, and its cylindrical part a tangential combustion-aid air pipe is arranged and have one at those combustion airs for the fuel feeder in the zone between sources, its top is communicated with the oblique part in top of the calcining conduit that deflects away from from rotary kiln by tracheae, the bottom of the square cross-section of this conduit tiltedly partly is communicated with the foot of rotary kiln, and the vertical ducting of circular cross section is incorporated at its middle part into, this pipeline is being connected the top of calcining conduit of the cyclone head of square cross-section, this head connects cyclonic separator by tracheae, cyclonic separator is communicated with the bottom of giving hot device by gas outlet tube, and be communicated with the foot of rotary kiln by the material outlet pipe after the calcining, give from the bottom in addition that export of raw material pipe that the heat part comes is imported into the bottom of calcining compartment and tertiary-air pipe is communicated with the foot of this rotary kiln by pipeline.
Other characteristics of the present invention have been seen hereinafter and will have been understood.
According to equipment of the present invention fuel is burnt better, calcining and whole process have higher heat to imitate more equably, because filling of each component part mixed and reaction in the calcining compartment, incinerating starting material almost completely, it may contain the remnants that do not have burnt fuel, is admitted to the calcining conduit of special shape.Calcination process is done to required degree and makes residual fuel perfect combustion in this conduit, and this is owing to contain air in the gas from rotary kiln.
A preferential embodiment according to equipment of the present invention narrates below with reference to appended schematic drawing.
By opening in the import of giving on the hot device 6 14, starting material are transfused to this and give hot device, enter the bottom of calcining compartment 4 thus by outlet conduit 15.Cyclonic separator 5 as axial combustion air supply pipe 7, is connecting the foot 2 of rotary kiln 1 by material outlet pipeline 16.Axial and the tangential combustion-aid air pipe 7 and 8 of calcining compartment 4 of leading separately all is being connected the tertiary-air pipe 9 of coming out from the condenser (not shown).The top of calcining compartment 4 is being communicated with the bottom of the calcining conduit 3 of this foot 2 that is arranged in rotary kiln 1 by flue 10.The top of calcining conduit 3 is connecting cyclonic separator 5 by gas pipeline 11 again, and the top of cyclonic separator 5 is being communicated with the bottom of giving hot device 6 by pneumatic outlet pipeline 12, on the top of giving hot device 6 exhaust neck 13 is housed.Be equipped with in the bottom of calcining compartment 4 fuel send to the pipe 18 and the calcining conduit 3 can equip fuel send to the pipe 19.In tangential combustion air supply pipe 8, regulatory element 20 is housed.The main active component (active elements) of all of this equipment is all being equipped the refractory liner (not shown).
Operation according to equipment of the present invention is as follows:
The starting material that give after the heat are delivered to the bottom of calcining compartment 4 by outlet conduit 15 from giving hot device 6, by by combustion air supply pipe 7 and 8 corresponding giving axially and the effect of tangential air stream and rotation consumingly, and fuel is supplied by sending pipe 18 at this.The heat that fuel combustion produces is passed to the raw-material particle in the calcining.Because centrifugal force and the vertical and sloping portion of gravity combined action at calcining compartment 4 may comprise the bottom that the thick relatively starting material particle that does not have burnt fuel remnants is sent back to this chamber, this is allowed to stay the long relatively time of the preceding paragraph in reaction zone.Have after the part calcining raw-material gas by the declivity of delivering to calcining conduit 3 by gas pipeline 10 from the top of calcining compartment 4 partly, at this they and mix from the gas of rotary kiln 1 by foot 2.In this zone, to stir and to-and-fro movement by intensive, raw-material calcining proceeds to required degree, and residual fuel burns up fully.Under some occasion, for technical reason, a part of fuel by send to the pipe 19 deliver to the calcining conduit 3 bottoms be favourable.
The raw-material mixture of gas and calcining back is further flowed through the middle part of calcining conduit 3 or guide part and is entered its top, and this top occurs with the form of cyclone head, finishes at the calcination process of this heat exchange.Have raw-material gas and deliver to cyclonic separator 5 by gas pipeline 11 from this cyclone head of calcining conduit 3, at this and the starting material after calcining separate, drained into the bottom of giving hot device 6 by outlet conduit 12 again.Gas is just discharged neck 13 by gas and is discharged behind the starting material of heat being passed to after giving heat.Starting material after the calcining of being separated from gas in cyclonic separator 5 fall into rotary kiln 1 by outlet conduit 16 through foot 12.
Claims (5)
1, a kind of calcination of powdered materials is raw-material equipment in the manufacture of cement particularly, comprise that is given a hot device, a calcining conduit, a calcining compartment, a cyclonic separator, a rotary kiln, refractory liner, the fuel feeder, the supply separately and the discharger of gentle and material, the invention is characterized in that calcining compartment (4) has a vertical component upwards to incorporate the round shape sloping portion into, and be provided with an axial combustion air supply pipe (7) in its underpart, the tangential combustion air supply pipe of none (8) on its round shape part, there is a fuel to send pipe (18) to and is positioned at this two combustion air supply pipes (7,8) zone between, the top of calcining compartment 4 is being communicated with the last oblique part of calcining conduit (3) by gas pipeline (10), should going up tiltedly, part departs from out from rotary kiln (1), the declivity of the square cross-section of this conduit (3) partly is being communicated with the foot (2) of rotary kiln (1), and incorporate in the vertical tube of circular cross section at its middle part, this vertical tube connecting calcining conduit (3) square cross-section be the top of form with the cyclone head, this head is connecting cyclonic separator (5) by gas pipeline (11), this separator (5) is being communicated with the bottom of giving hot device (6) by pneumatic outlet pipeline (12), and be communicated with the foot (2) of rotary kiln (1) by calcined materials outlet conduit (16), export of raw material pipeline (15) is from the bottom of giving hot device (6) in addition, be imported into the bottom of calcining compartment (4), and a tertiary-air pipe (9) is being communicated with this foot (2) by pipe (17).
2,, it is characterized by the top that gas pipeline (10) is tangentially being connected calcining compartment (4) as the equipment in the claim 1.
3, as the equipment in claim 1 or 2, it is characterized by gas pipeline (10) is the top that tangentially is being connected calcining compartment (4), towards the opposite direction of tangential combustion air supply pipe (8).
4,, it is characterized by fuel and send the bottom that pipe (19) is conducted to calcining conduit (3) to as the equipment in each in the claim 1 to 3.
5,, it is characterized by in tangential combustion air supply pipe (8) and be equiped with a regulatory element (20) as the equipment in each in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107166 CN1017333B (en) | 1986-05-20 | 1987-10-22 | Apparatus for successive calcination of powdered materials |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS863651A CS263617B1 (en) | 1986-05-20 | 1986-05-20 | Device for progressive calcination of powdered materials |
| CN 87107166 CN1017333B (en) | 1986-05-20 | 1987-10-22 | Apparatus for successive calcination of powdered materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032652A true CN1032652A (en) | 1989-05-03 |
| CN1017333B CN1017333B (en) | 1992-07-08 |
Family
ID=25742378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107166 Expired CN1017333B (en) | 1986-05-20 | 1987-10-22 | Apparatus for successive calcination of powdered materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017333B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557946A (en) * | 2018-04-04 | 2019-12-10 | 太平洋工程株式会社 | Organic sludge treatment device and treatment method |
| CN112739956A (en) * | 2018-09-20 | 2021-04-30 | Ifp新能源公司 | Device and method for chemical looping combustion with particle separator provided with inclined inlet duct |
-
1987
- 1987-10-22 CN CN 87107166 patent/CN1017333B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557946A (en) * | 2018-04-04 | 2019-12-10 | 太平洋工程株式会社 | Organic sludge treatment device and treatment method |
| CN112739956A (en) * | 2018-09-20 | 2021-04-30 | Ifp新能源公司 | Device and method for chemical looping combustion with particle separator provided with inclined inlet duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1017333B (en) | 1992-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU923378A3 (en) | Apparatus for roasting preheated pulverulent material | |
| CA1037255A (en) | Method and an apparatus for burning the material for the manufacture of cement | |
| US4337032A (en) | Device for mixing gaseous fluids by turbulence | |
| US4039277A (en) | Apparatus for calcining powder materials | |
| US4088438A (en) | Apparatus for the heat treatment of fine-grained material | |
| CA1058864A (en) | Apparatus for calcining raw material | |
| CA1198746A (en) | Method for heat treating pulverous raw material and calcining combustor therefor | |
| KR910000710B1 (en) | Apparatus for burning pulverulent raw material | |
| US4249892A (en) | Method and apparatus for the thermal treatment of pulverulent material particularly for the calcining of cement | |
| CN100368750C (en) | Method and plant for mfg. cement clinker | |
| US3938949A (en) | Method and apparatus for burning pulverulent materials | |
| US4126471A (en) | Method and apparatus for the thermal treatment of alkali-containing pulverized raw material to be used in the manufacture of cement | |
| HU201145B (en) | Apparatus for continuous calcinating dustlike materials | |
| JPH02243545A (en) | Method and device for manufacture of cement clinker from raw material metal | |
| US4477251A (en) | Process and apparatus for calcining pulverulent material | |
| CN1032652A (en) | The equipment of successive calcination of powdered materials | |
| GB2081855A (en) | Method and apparatus for heat treating granular material | |
| RU2243177C2 (en) | Calcination equipment | |
| US3932116A (en) | Method and apparatus for burning pulverulent materials | |
| US5975892A (en) | Pneumatic flash calciner thermally insulated in feed storage silo | |
| US4815970A (en) | Apparatus for the heat treatment of fine-grained material | |
| US4105460A (en) | Process for the endothermic calcination of raw material | |
| US4583943A (en) | Process for calcining pulverulent material | |
| CA1062460A (en) | Apparatus for calcining raw material | |
| JPH0327261B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |