DE6810715U - DEVICE FOR THE CONTINUOUS REMOVAL OF ALKALINE FROM THE EXHAUST GASES OF A CEMENT STOVE. - Google Patents
DEVICE FOR THE CONTINUOUS REMOVAL OF ALKALINE FROM THE EXHAUST GASES OF A CEMENT STOVE.Info
- Publication number
- DE6810715U DE6810715U DE6810715U DE6810715U DE6810715U DE 6810715 U DE6810715 U DE 6810715U DE 6810715 U DE6810715 U DE 6810715U DE 6810715 U DE6810715 U DE 6810715U DE 6810715 U DE6810715 U DE 6810715U
- Authority
- DE
- Germany
- Prior art keywords
- chains
- exhaust gas
- gas duct
- cleaning
- housing
- 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
Links
- 239000007789 gas Substances 0.000 title claims description 13
- 239000004568 cement Substances 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/60—Methods for eliminating alkali metals or compounds thereof, e.g. from the raw materials or during the burning process; methods for eliminating other harmful components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
- F27B2007/2091—Means for eliminating compounds from gases by condensation, e.g. alkali metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/166—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0063—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising endless belts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Toxicology (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
Dlpl.-Ing. R. B ti τ. T 2 ββη. "510-14 TPQH-SdR Dlpl.-Ing. R. B ti τ. T 2 ββη. "510-14 TPQH-SdR
Dipl-Ing. K. LAMPRECHT P ' 1^" bcm Dipl-Ing. K. LAMPRECHT P ' 1 ^ " bcm
Dr.-Ing. R. B E E T Z Jr.
München 22, Stelnndoffitr. Va Dr.-Ing. R. BEETZ Jr.
Munich 22, Stelnndoffitr. Va
3O.7.I97I GbmH 68IO715.33O.7.I97I GbmH 68IO715.3
Einrichtung zur Ausscheidung der Alkalien aus den AbgasenDevice for the elimination of the alkalis from the exhaust gases
eines Zementofensa cement kiln
Die Neuerung betrifft eine Einrichtung zur Ausscheidung der Alkalien aus den Abgasen eines Zamentofens, bestehend aus einem Vorhang endloser, umlaufender Ketten, die quer durch den Abgaskanal des Zementofens geführt sind, und außerhalb des Abgaskanals angeordneter Kühl- und Reinigungsvorrichtungen.The innovation concerns a device for separating the alkalis from the exhaust gases of a Zament oven, consisting of a curtain of endless, revolving chains, which are led across the exhaust gas duct of the cement kiln, and outside of the exhaust duct arranged cooling and cleaning devices.
Bei einer bekannten Einrichtung dieser Art (brit. Pat. 1 001 568) erfolgt die Reinigung der Ketten durch Waschen mittels Flüssigkeit, was al ο zugleich die Kühlung bewirkt, oder mechanisch durch Rütteln, also ohne Kühlung. Das Waschen ist unerwünscht, weil es die begehrten Alkalien flüssig, anstatt, was zum bequemen Transport erwünscht ist, trocken liefert; die Reinigung durch Rütteln ist unerwünscht, weil dieses Rütteln die Ketten nicht auch kühlt,In a known device of this type (British Pat. 1 001 568) the chains are cleaned by washing by means of liquid, which al ο also causes cooling, or mechanically by shaking, i.e. without cooling. The washing is undesirable because the coveted alkalis are liquid instead of dry, which is desirable for convenient transportation supplies; cleaning by shaking is undesirable because this shaking does not also cool the chains,
Aufgabe der Neuerung ist es daher, eine Einrichtung zu schaffen, welche die Ketten trocken kühlt und reinigt.The task of the innovation is therefore to create a device that cools and cleans the chains dry.
Neuerungsgemaß wird diese Aufgabe dadurch gelöst, daß zur Kühlung und Reinigung der Ketten mit Druckluft beaufschlagte Düsen vorgesehen sind, deren Druckluftstrahl auf die Ketten gerichtet ist.According to the innovation, this object is achieved in that for Cooling and cleaning of the chains with compressed air nozzles are provided, the compressed air jet on the chains is directed.
6810715ie.li. 716810715ie.li. 71
Bei dieser Einrichtung fallen also die aus dem Zementcfen-Abgase ausgeschiedenen. Alkalien trocken an.With this facility, the exhaust gases from the cement furnace fall retired. Alkalis dry.
Die Neuerung läßt sich noch dadurch erweitern, daß zur zusätzlichen Reinigung der Ketten rotierende Bürsten vorgesehen sind. Die Reinigung von Kettenvorhangen bei Zenentöfen mittels Bürsten ist an sich bekannt (Deutsche Patentschrift 571 28j5).The innovation can be expanded by adding an additional Cleaning the chains rotating brushes are provided. The cleaning of chain curtains on zenent stoves by means of Brushing is known per se (German patent specification 571 28j5).
Damit der beim Reinigen der Ketten gelöste Staub abgeführt wird und nicht etwa dort, wo die Ketten durch die Wand des Abgaskanals hindurchgeführt werden, in den Abgaskanal geraten kann, empfiehlt es sich, daß die die Kühl- und Reinigungsluft zuführenden Düsen und die rotierenden Bürsten in einem am Abgaskanal· dichten Gehäuse angeordnet sind und daß dieses Gehäuse über einen vorgeschalteten Staubfangfilter an ein Sauggebläse angeschlossen ist, welches einen Luftdruck im Gehäuse aufrechterhält, der niedriger als der im Abgaskanal herrschende Luftdruck ist.So that the dust loosened when cleaning the chains is carried away and not where the chains pass through the wall of the Exhaust duct can get into the exhaust duct, it is recommended that the cooling and cleaning air feeding nozzles and the rotating brushes are arranged in a housing that is sealed against the exhaust gas duct and that this housing Housing is connected to a suction fan via an upstream dust filter, which generates an air pressure in the Housing maintains, which is lower than the prevailing air pressure in the exhaust duct.
Die Abdichtung an jenen Stellen, an denen die Ketten durch die Wand des Abgaskanals geführt werden, kann auch dadurch verbessert werden, daß die Ketten durch die Wände des Abgaskanals in Führungsrohren hindurchgeführt sind, die in einander gleichen Abständen auf den Ketten befestigt sind.The seal at those points where the chains are guided through the wall of the exhaust duct can also be improved as a result be that the chains are passed through the walls of the exhaust duct in guide tubes which are the same in each other Distances are attached to the chains.
Ein Ausführungsbeispiel der Neuerung ist in der Zeichnung dargestellt. Es zeigen:An embodiment of the innovation is shown in the drawing. Show it:
Fig. 1 die Gesamteinrichtung in schematischem Längsschnitt1 shows the overall device in a schematic longitudinal section
durch den Abgaskanal;
Fig. 2 die Durchführung der Ketten durch die Wand de; Abgaskanals im Schnitt.through the exhaust duct;
Fig. 2 shows the implementation of the chains through the wall de; Exhaust duct in section.
Vom Ende eines Zement-Drehrohrofens 1 führt der Ab^askanal 2, dessen Wände auf einem metallischen Mantel 2a und einer Ausmauerung 2b bestehen, zu einem (nicht gezeigten) Wärmetauscher;The exhaust duct 2 leads from the end of a cement rotary kiln 1, the walls of which consist of a metallic shell 2a and a brick lining 2b, to a heat exchanger (not shown);
6810715i8.ii. 716810715i8.ii. 71
die in diesem Wärmetauscher vorgeheizten pulverförmigen Zement-Rohstoffe werden in den Ofen durch Kanäle 3 eingeführt. Mit K sind die über Rollen 16 und 17 laufenden endlosen Ketten bezeichnet, die ?- großer Anzahl nebeneinander angeordnet der. Vorhang bilden. In einem die Kette umschließenden Gehäuse 18 sind Düsen 19 und 20 angeordnet, aus denen Druckluftstrahlen aui die aus dem Abgaskanal herauskommenden Kettentrums geblasen werden. Die notwendige Druckluft wird von Verdichtern 21 und 22 geliefert. Mit 23 und 24 sind zusätzliche rotierende Bürsten bezeichnet. Mit 25 sind die Führungsrohre, in denen die Ketten durch die Kanalwände geführt werden, und mit 26 die auf den Ketten befestigten Abdichte-Scheiben bezeichnet.The powdery cement raw materials preheated in this heat exchanger are introduced into the furnace through channels 3. With K , the endless chains running over rollers 16 and 17 are referred to, the large numbers of which are arranged next to one another. Form a curtain. In a housing 18 enclosing the chain, nozzles 19 and 20 are arranged, from which jets of compressed air are blown onto the chain strands emerging from the exhaust duct. The compressed air required is supplied by compressors 21 and 22. With 23 and 24 additional rotating brushes are designated. The guide tubes in which the chains are guided through the channel walls are denoted by 25, and the sealing washers attached to the chains are denoted by 26.
Der im Abgaskanal 2 und der im Kettengehäuse 18 herrschende Luftdruck P, und Pp werden gemessen, wobei ihr Differenzdruck über ein Vergleichsgerät 27 und einen Stellmotor eine Klappe 28 steuert, welche in einem Kanal 29 schwenkbar angeordnet ist, durch den Frischluft von einem Gebläse 30 in das Kettengehäuse l8 eingesaugt wird. Zwischen dem Kettengehäuse 18 und dem Sauggebläse 30 passiere die auf dem Kettengehäuse 18 abgesaugte, staubhaltige Luft einen Filter 31 mit Fangtrichter 32, der den im Filter gefangenen Staub sammelt und abführt; ein erster Fangtrichter 33 ist schon am Kettengehäuse 18 angeordnet und fängt schon dort den Hauptteil des Staubes ab,,The air pressure P 1 and P p prevailing in the exhaust gas duct 2 and the chain housing 18 are measured, with their differential pressure A flap 28 controls via a comparison device 27 and a servomotor, which flap is arranged pivotably in a channel 29 is, through the fresh air from a fan 30 in the chain housing l8 is sucked in. Between the chain housing 18 and the suction fan 30 pass the one on the chain housing 18 extracted, dusty air a filter 31 with a collecting funnel 32, which collects and discharges the dust trapped in the filter; a first collecting funnel 33 is already arranged on the chain housing 18 and already there catches the main part of the dust,
681071518.11.71681071518.11.71
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR132571 | 1967-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE6810715U true DE6810715U (en) | 1971-11-18 |
Family
ID=8643320
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE6810715U Expired DE6810715U (en) | 1967-12-15 | 1968-12-10 | DEVICE FOR THE CONTINUOUS REMOVAL OF ALKALINE FROM THE EXHAUST GASES OF A CEMENT STOVE. |
| DE19681813762 Pending DE1813762B1 (en) | 1967-12-15 | 1968-12-10 | Device for the continuous elimination of alkalis from the exhaust gases of a cement kiln |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681813762 Pending DE1813762B1 (en) | 1967-12-15 | 1968-12-10 | Device for the continuous elimination of alkalis from the exhaust gases of a cement kiln |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3503187A (en) |
| BE (1) | BE724402A (en) |
| BR (1) | BR6804507D0 (en) |
| DE (2) | DE6810715U (en) |
| FR (1) | FR1558447A (en) |
| GB (1) | GB1247355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0016935A1 (en) * | 1979-02-06 | 1980-10-15 | Krupp Polysius Ag | Method and apparatus for the heat treatment of fine-grained material, particularly of cementitious material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3757493A (en) * | 1972-06-08 | 1973-09-11 | Caledon Eng Inc | De-mister device |
| FR2446266B1 (en) | 1979-01-09 | 1985-07-12 | Lafarge Conseils | PROCESS AND INSTALLATION FOR THE MANUFACTURE OF CEMENT CLINKER |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE471986C (en) * | 1929-02-23 | Eisenwerke G M B H | Endless circulation filter | |
| US746255A (en) * | 1903-06-27 | 1903-12-08 | Ralph Baggaley | Apparatus for the treatment of furnace-gases. |
| US1561758A (en) * | 1922-05-20 | 1925-11-17 | George W Wallace | Apparatus for distilling oil |
| US1955277A (en) * | 1930-07-24 | 1934-04-17 | Smidth & Co As F L | Apparatus for preliminary treatment of raw material mixed for cement burning |
| US2093866A (en) * | 1935-08-28 | 1937-09-21 | Smidth & Co As F L | Apparatus for removing dust from gases |
| US2271401A (en) * | 1939-01-07 | 1942-01-27 | Carrier Engineering Co Ltd | Apparatus for filtering or cleaning air or other gases |
| US2902834A (en) * | 1957-07-01 | 1959-09-08 | Carrier Corp | Air conditioning apparatus |
| US3395518A (en) * | 1966-12-28 | 1968-08-06 | United States Steel Corp | Air filter with traveling filter-medium screen |
-
1967
- 1967-12-15 FR FR132571A patent/FR1558447A/fr not_active Expired
-
1968
- 1968-08-02 US US749692A patent/US3503187A/en not_active Expired - Lifetime
- 1968-11-25 BE BE724402D patent/BE724402A/xx unknown
- 1968-12-03 GB GB57263/68A patent/GB1247355A/en not_active Expired
- 1968-12-03 BR BR204507/68A patent/BR6804507D0/en unknown
- 1968-12-10 DE DE6810715U patent/DE6810715U/en not_active Expired
- 1968-12-10 DE DE19681813762 patent/DE1813762B1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0016935A1 (en) * | 1979-02-06 | 1980-10-15 | Krupp Polysius Ag | Method and apparatus for the heat treatment of fine-grained material, particularly of cementitious material |
Also Published As
| Publication number | Publication date |
|---|---|
| US3503187A (en) | 1970-03-31 |
| BE724402A (en) | 1969-05-02 |
| BR6804507D0 (en) | 1973-05-03 |
| GB1247355A (en) | 1971-09-22 |
| FR1558447A (en) | 1969-02-28 |
| DE1813762B1 (en) | 1969-11-06 |
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