CN202369510U - Kiln dust discharging and recycling device used in production of low-alkali cement - Google Patents
Kiln dust discharging and recycling device used in production of low-alkali cement Download PDFInfo
- Publication number
- CN202369510U CN202369510U CN2011204842814U CN201120484281U CN202369510U CN 202369510 U CN202369510 U CN 202369510U CN 2011204842814 U CN2011204842814 U CN 2011204842814U CN 201120484281 U CN201120484281 U CN 201120484281U CN 202369510 U CN202369510 U CN 202369510U
- Authority
- CN
- China
- Prior art keywords
- skewed slot
- scraper
- dust
- dust collector
- recycling device
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model provides a kiln dust discharging and recycling device used in the production of low-alkali cement. The kiln dust discharging and recycling device comprises a bag type dust collector, a humidifying tower, a cyclone dust collector, chutes, a bidirectional spiral conveyer and a scrapper, wherein a conveying chute I is arranged at the lower end of the bag type dust collector, the bidirectional spiral conveyer II is arranged at the lower end of the humidifying tower, a conveying chute III is arranged bellow the conveying chute I and the conveying chute II, and is connected with a hoister, a scraper-trough conveyer is arranged at the upper end of the hoister, and is connected to the front end of the scrapper, the lower end of the scrapper is connected with a belt conveyor, a conveying chute IV is arranged below the cyclone dust collector, and is connected with the belt conveyor, and the belt conveyor is connected with a raw meal silo. According to the kiln dust discharging and recycling device used in the production of the low-alkali cement, kiln dust with high alkali concentration is discharged and recycled, and the recycled kiln dust is discharged to a raw material system of another production line, so that the problem of ultrahigh alkali content in clinker caused by the circular enrichment of returned dust can be solved, and defects caused by field dust and the secondary application of the returned dust can be avoided.
Description
Technical field
The utility model belongs to field of cement production, in particularly a kind of production method of low alkali cement process the kiln ash efflux, retrieving arrangement.
Background technology
The common raw meal proportioning of cement is selected Wingdale rejects, blast-furnace slag, iron ore dressing mine tailing, drift-sand four components batching for use, the saline and alkaline area of local genus, and various raw material alkali contents are all higher.Existing technology is with Wingdale rejects, blast-furnace slag, iron ore dressing mine tailing, silica proportional mixing; Wherein the proportioning of Wingdale rejects, blast-furnace slag, iron ore dressing mine tailing, silica divides 75.5%, 13.5%, 6.5%, 4.5% respectively in raw material; Go into to grind into the raw material fine powder; The feeding pre-heating system, material gets into calcined by rotary kiln through preheating, decomposition back, produces the low alkali cement grog through overcooling again.Owing to be present in the Na in the raw material
2O, K
2O has the characteristics of vaporization at high temperature, low temperature enrichment, in preheater circulation enrichment, causes in the material that gets into rotary kiln, and alkali content is high, and the raw material alkali content is 0.50%, and the grog alkali content is 0.73%.The grog alkali content has exceeded low alkali cement grog alkali content (Na among the GB/T 21372-2008
2O+0.658K
2O) requirement of massfraction≤0.60% can't reach the requirement of low alkali.
The utility model content
The utility model technical problem to be solved is to provide to producing the low alkali cement high problem of grog alkali content in the prior art that the kiln ash effluxes in a kind of production method of low alkali cement process, retrieving arrangement.
For the technical problem that solves the utility model adopts following technical scheme:
In a kind of production method of low alkali cement process the kiln ash efflux, retrieving arrangement; Comprise sack cleaner, conditioning tower, tornado dust collector, skewed slot, bidirectional screw transfer roller, scraper plate machine, said sack cleaner lower end is installed and is carried skewed slot I, said conditioning tower lower end that bidirectional screw transfer roller II is installed; Said conveying skewed slot I is installed with conveying skewed slot II below and is carried the skewed slot III; Said conveying skewed slot III is connected with lift, and said lift upper end is provided with scraper-trough conveyer, and said scraper-trough conveyer is connected with the front end of scraper plate machine; The lower end of said scraper plate machine is connected with conveyor; Said conveyor is connected with carrying the skewed slot IV, and said conveying skewed slot IV is installed in the below of tornado dust collector, said conveyor be connected with raw material silo through lift.
The scraper-trough conveyer that said scraper plate machine upper end is provided with is the scraper-trough conveyer that has bypass.
The utility model has utilized conveying skewed slot and bypass scraper-trough conveyer, scraper plate machine, lift; Having realized containing the high kiln ash of alkali concn effluxes and reclaims; The kiln ash that reclaims is drained into the feed circuit of another production line; Reduced the alkali content of going into the kiln raw material, made the general purpose portland cement grog of production reach low alkali standard.Stop the problem that is difficult for homogenizing, conveying in the use of airborne dust and kiln ash secondary simultaneously.So both can solve back grey circulation enrichment, cause the problem of grog alkali content superelevation, and can avoid on-the-spot airborne dust again and return grey secondary collocation and use the defective that causes.
Description of drawings
Accompanying drawing is the utility model structural representation;
Among the figure: 1-sack cleaner 2-conditioning tower 3-carries skewed slot III 4-scraper plate machine 5-tornado dust collector 6-to carry skewed slot I 7-raw material silo 8-to carry skewed slot II 9-to carry skewed slot IV 10-lift 11-scraper-trough conveyer 12-conveyor.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
In a kind of production method of low alkali cement process the kiln ash efflux, retrieving arrangement, comprise sack cleaner 1, conditioning tower 2, tornado dust collector 5, raw material silo 7.Sack cleaner 1 lower end is installed and is carried skewed slot I 6; Bidirectional screw transfer roller II 8 is installed in conditioning tower 2 lower ends, carries skewed slot I 6 bidirectional screw transfer roller II 8 belows to install and carries skewed slot III 3, carries the lower end of skewed slot III 3 to be connected with lift 10; The scraper-trough conveyer 11 that connects a band bypass in the upper end of lift 10; The scraper-trough conveyer 11 of band bypass is connected with the upper end of the scraper plate machine 4 of FU400 * 45.50m, and the lower end of scraper plate machine 4 is connected with conveyor 12, carries the lower end of skewed slot IV 9 to be connected with conveyor 12; Carry skewed slot IV 9 to be installed in the lower end of tornado dust collector 5, carry the material in the skewed slot IV 9 to get into raw material silo 7 through conveyor 12, lift 13.
In process of production; Article one, the kiln ash collected via conditioning tower 2, sack cleaner 1 of the kiln tail of clinker production line respectively through bidirectional screw transfer roller 8, carry skewed slot I 6 to compile to flow to and carry skewed slot III 3; The material of conveying skewed slot III 3 effluxes a mouthful entering scraper plate machine 4 through the scraper-trough conveyer 11 of the band bypass of lift 10 upper ends, is transported on the conveyor 12 of another raw material production line through scraper plate machine 4.The opposite side kiln ash of the scraper-trough conveyer 11 of band bypass is normally got back to the production line raw material silo; So both can solve back grey circulation enrichment, cause the problem of grog alkali content superelevation, and can avoid on-the-spot airborne dust again and return grey secondary collocation and use the defective that causes.The raw material of another production line are collected by tornado dust collector 5 and are carried on the skewed slot IV 9, also are transported to conveyor 12.Compound in the conveyor 12 enters into raw material silo 7 through lift 13.The kiln ash that uses the utility model that a clinker production line is effluxed is recycled to collocation use in another production line raw material finished product, can reduce the alkali content of grog 0.2%, and effect is obvious, and does not influence the ordinary production of clinker production line.
Claims (2)
- In the production method of low alkali cement process kiln ash efflux, retrieving arrangement; Comprise sack cleaner, conditioning tower, tornado dust collector, skewed slot, bidirectional screw transfer roller, scraper plate machine; It is characterized in that: said sack cleaner (1) lower end is installed and is carried skewed slot I (6); Bidirectional screw transfer roller II (8) is installed in said conditioning tower (2) lower end, and said conveying skewed slot I (6) and bidirectional screw transfer roller II (8) below are installed and carried skewed slot III (3), and said conveying skewed slot III (3) is connected with lift (10); Said lift (10) upper end is provided with scraper-trough conveyer (11); Said scraper-trough conveyer (11) is connected with the front end of scraper plate machine (4), and the lower end of said scraper plate machine (4) is connected with conveyor (12), and said conveyor (12) is connected with carrying skewed slot IV (9); Said conveying skewed slot IV (9) is installed in the below of tornado dust collector (5), said conveyor (12) be connected with raw material silo (7) through lift (13).
- 2. in a kind of production method of low alkali cement process according to claim 1 the kiln ash efflux, retrieving arrangement, it is characterized in that: the scraper-trough conveyer (11) that said scraper plate machine (4) upper end is provided with is for having the scraper-trough conveyer of bypass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204842814U CN202369510U (en) | 2011-11-29 | 2011-11-29 | Kiln dust discharging and recycling device used in production of low-alkali cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204842814U CN202369510U (en) | 2011-11-29 | 2011-11-29 | Kiln dust discharging and recycling device used in production of low-alkali cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202369510U true CN202369510U (en) | 2012-08-08 |
Family
ID=46593223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204842814U Expired - Lifetime CN202369510U (en) | 2011-11-29 | 2011-11-29 | Kiln dust discharging and recycling device used in production of low-alkali cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202369510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601385A (en) * | 2013-11-13 | 2014-02-26 | 平阴山水水泥有限公司 | Kiln dust collection device |
-
2011
- 2011-11-29 CN CN2011204842814U patent/CN202369510U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601385A (en) * | 2013-11-13 | 2014-02-26 | 平阴山水水泥有限公司 | Kiln dust collection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202337732U (en) | System for producing cement by separated grinding | |
| CN101560067B (en) | Technology for preparing cement by dry carbide slag method | |
| CN110698092A (en) | Method for producing high-strength clinker from high-magnesium limestone | |
| CN206152941U (en) | Broken system of cement clinker | |
| CN103555935A (en) | Pellet iron ore concentrate fine grinding pelletizing system and process | |
| CN202369510U (en) | Kiln dust discharging and recycling device used in production of low-alkali cement | |
| CN105217987A (en) | The complex slag utilizing electric arc furnace restored slag and flyash to produce and preparation technology thereof | |
| CN103143295B (en) | Lime briquetting production line | |
| CN206066689U (en) | A kind of joint use type dry-mixed mortar production line | |
| CN210022424U (en) | Slag and cement combined grinding production line | |
| CN208711929U (en) | Low-grade lithium brightness mine preparation equipment | |
| CN105903534A (en) | Slag grinding system | |
| CN202151435U (en) | Ultralow-temperature and full-automatic traditional Chinese medicine production line | |
| CN205132564U (en) | Seal stock ground with store and homogenization function | |
| CN212759049U (en) | Kaolin crushing production and batching system | |
| CN212476837U (en) | Equipment for preparing cold-cured ball by electric furnace ash | |
| CN203159480U (en) | Sintered lime discharging system | |
| CN107326777A (en) | A kind of primary material, reworked material integrated equipment | |
| CN204369761U (en) | A kind of preparation system of silicon-calcium slag cement | |
| CN203546120U (en) | Conglomeration iron concentrate fine-grinding and pelletizing system | |
| CN207330764U (en) | A kind of calcium carbide slag disposal system | |
| CN203155063U (en) | Production line of desulfurizer | |
| CN205236141U (en) | Half whole grinding system of cement based on two separation selection powder machines of special LAX | |
| CN206716086U (en) | Raymond mill dedusting material collects evenly mixing device | |
| CN204752542U (en) | Quantitative recovery system of kiln ash |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |