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DE1001445B - Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally - Google Patents

Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally

Info

Publication number
DE1001445B
DE1001445B DEV7051A DEV0007051A DE1001445B DE 1001445 B DE1001445 B DE 1001445B DE V7051 A DEV7051 A DE V7051A DE V0007051 A DEV0007051 A DE V0007051A DE 1001445 B DE1001445 B DE 1001445B
Authority
DE
Germany
Prior art keywords
shaft
combustion
firing
flows horizontally
slag
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.)
Pending
Application number
DEV7051A
Other languages
German (de)
Inventor
Wilhelm Amelingmeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEV7051A priority Critical patent/DE1001445B/en
Publication of DE1001445B publication Critical patent/DE1001445B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B10/00Combustion apparatus characterised by the combination of two or more combustion chambers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/04Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the movement of combustion air and flue gases being substantially transverse to the movement of the fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H15/00Cleaning arrangements for grates; Moving fuel along grates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00Removing ash, clinker, or slag from combustion chambers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B2700/00Combustion apparatus for solid fuel
    • F23B2700/011Combustion apparatus for solid fuel with fuel shaft for steam boilers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2700/00Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
    • F23J2700/001Ash removal, handling and treatment means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Furnace Details (AREA)

Description

Schachtfeuerung mit einem von der Verbrennungsluft vorwiegend waagerecht durchströmten Brennschacht Die Erfindung betrifft eine Schachtfeuerung mit einem von der Verbrennungsluft vorwiegend waagerecht durchströmten Brennschacht und einer am Boden des Brennschachtes befindlich-en Schlackenaustragvorrichtung.Shaft firing with one of the combustion air predominantly horizontal through-flow combustion shaft The invention relates to a shaft furnace with a Combustion air mainly flows horizontally through a combustion shaft and one Slag discharge device located at the bottom of the furnace.

Bei Feuerungen dieser Art hat sich gezeigt, daß die heiße Sehlacke am unteren Ende des Schachtes unter dem Druck der Brennstoffsäule zu einem großen Schlackenkuchen zusammenschmilzt, der über der ganzen Rostbreite zusammenhängt und beim Erkalten ein außerordentlich dichtes und hartes Gefüge zeigt. Die Austragung dieses Schlackenkuchens erfordert eine sehr kräftige Austragvorrichtung und einen hohen Kraftbedarf für den Antrieb.With furnaces of this kind it has been shown that the hot lacquer at the lower end of the shaft under the pressure of the fuel column into a large one Cinder cake melts together, which is connected over the entire width of the grate and shows an extraordinarily dense and hard structure on cooling. The event this cinder cake requires a very powerful discharge device and a high power requirement for the drive.

Ferner ist bekanntgeworden, bei einer Schadhtfeüerung die Temperatur der Brennstoffsäule durch Kühlung der Schachtwandung so weit herabzusetzen, daß die Sinterung der Schlacke weitgehend vermieden wird. Dies ist aber nur zu erreichen bei niedriger Wärmebelastung des Brennschaehtes und verhältnismäßig geringem Sdhachtduersc'hnitt, so daß sich baulich ungünstige Schachtformen ergeben. Auch ist es bereits bekannt, bei Schachtöfen für größere Rostbreiten zwei- und mehrteilige Verdränger vorzusehen.It has also become known that the temperature in the event of a defective fire reduce the fuel column by cooling the shaft wall so far that the sintering of the slag is largely avoided. But this can only be achieved with low heat load on the brazier and relatively low roof thickness, so that structurally unfavorable shaft shapes result. It is also already known For shaft furnaces for larger grate widths, two-part and multi-part displacers are to be provided.

Erfindungsgemäß wird vorgeschlagen, den Brennschacht der Feuerung durch lotrechte, wassergekühlte Zwischenwände in der Schlackenaustragungs- und Luftströmungseinrichtung in mehrere Bremikammern zu unterteilen und jede Brennkammer mit einer Schlackenausdrückvorrichtung zu versehen. Es ist erforderlich, daß die Zwischenwände zumindest die Hauptbrennzone unterteilen und bis auf den Boden des Brennschachtes reichen.According to the invention it is proposed to use the combustion shaft of the furnace through vertical, water-cooled partition walls in the slag discharge and air flow device to be divided into several brake chambers and each combustion chamber with a slag ejection device to provide. It is necessary that the partition walls are at least the main combustion zone subdivide and reach down to the bottom of the firing shaft.

Durch diesen Vorschlag wird erreicht, daß in dem Brennschacht keine über die ganze Breite s'ic'h erstreckende Schlackenkuchen entstehen können, und außerdem wird durch den intensiven Wärmeentzug durch diie von beiden Seiten beheizten, gekühlten Zwischenwände die Temperatur im Innern der Brennstoffsäule herabgesetzt, so daß die Schlackenteilchen weniger zur S,interung neigen. Die gesinterten Sdlilackenstücke werden daher zumindest in geringerer Größe anfallen, die durch die Schlackenausdrückvorridhtungen leicht nach außen entfernt werden können.By this proposal it is achieved that in the firing shaft no cindercakes can arise over the entire width, and in addition, the intense heat extraction by the heated from both sides, cooled partition walls reduce the temperature inside the fuel column, so that the slag particles are less prone to sintering. The sintered black lacquer pieces will therefore arise at least in a smaller size, due to the Schlackenausrückvorridhtungen can be easily removed to the outside.

Die Zeichnung zeigt in Abb.1 und 2 den Erfindungsgegenstand. Der Brennschacht 1 wird vorn und hinten durch die mit schräg gestellten Flossen besetzten Rohrreihen 2 und 3 begrenzt. Nach unten ist der Brennschacht durch den Bodenrost 4 abgeschlossen, der aus einem wassergekühlten Kasten mit Luftdurchtr.ittssdhlitzen 5 besteht. Die Verbrennungsluft strömt aus der Luftkammer 6 vorwiegend waagerecht durch das aus den Rohren 2 bestehende Eintrittsgitter. Die Verbrennungsgase treten durch das Austrittsgitter 3 in den Ausbrennraum 7 über und durchströmen von hier aus eine nicht näher dargestellte Berührungsheizfläche. EinTeil derLuft tritt auch von unten ein durch die Schlitze 5. Die sich auf dem Rost sammelnde Schlacke wird durch den Sdhlac'kensdhieber 8 nach vorn ausgedrückt.The drawing shows the subject of the invention in Figures 1 and 2. The fire shaft 1 is at the front and back through the rows of tubes with slanted fins 2 and 3 limited. The firing shaft is closed at the bottom by the bottom grate 4, which consists of a water-cooled box with Luftdurchtrittssdhlitzen 5. the Combustion air flows out of the air chamber 6 mainly horizontally through the the pipes 2 existing inlet grille. The combustion gases pass through the outlet grille 3 into the burnout space 7 and flow through from here a not shown in detail Contact heating surface. Some of the air also enters from below through the slots 5. The slag that collects on the grate is removed by the Sdhlac'kensdhieber 8 expressed forward.

Abb.2 zeigt einen Querschnitt durch den Brennsc@acht nach Abb. 1. wie erfindungsgemäß vorgeschlagen wurde, ist der Brennschacht 1 durch eine wassergekühlte Zwischenwand 9 in die beiden Brennkammern 1° und 1v unterteilt. Dementsprechend besteht auch die Ausdrückvorrichtung aus zwei Schlackenschiebern. Der Antrieb des Schiebers-entweder von Hand oder durch motorische Kraft - kann so ausgebildet sein, daß beide Schieber zugleich betätigt «erden. Besser ist es aber, die Schieber nacheinander zu betätigen.Fig. 2 shows a cross section through the Brennsc @ eight according to Fig. 1. as proposed according to the invention, the firing shaft 1 is water-cooled Partition 9 divided into the two combustion chambers 1 ° and 1v. Accordingly the push-out device also consists of two slag pushers. The drive of the The slide - either by hand or by motorized force - can be designed in such a way that that both slides are actuated at the same time. But it is better to move the sliders one after the other to operate.

Im letzteren Fall kann auch jeder Schieber einen eigenen Antrieb erhalten, wodurch beide Schieber völlig unabhängig voneinander arbeiten können. Wie Abb. 2 zeigt, liegt dter Antrieb 10 an den beiden Seitenwänden.In the latter case, each slide can also have its own drive, so that both slides can work completely independently of each other. As in Fig. 2 shows, the drive 10 is on the two side walls.

Die Zwischenwand 9 kann - wie gezeigt - aus zwei ebenen Wänden gebildet sein; sie kann aber auch aus dicht aneinanderliegenden Rohren bestehen.The intermediate wall 9 can - as shown - be formed from two flat walls be; but it can also consist of tubes lying close together.

Die Zahl der Zwischenwände g kann beliebig gewählt werden. Sie wird bestimmt durch diie Breite der Feuerung und die Eigenschaften der Schlacke.The number of partitions g can be chosen arbitrarily. she will determined by the width of the furnace and the properties of the slag.

Claims (1)

PATENTANSPRUCH: Schachtfeuerung mit einem von der Verbrennungsluft vorwiegend waagerecht durchströmten Brennschacht und einer am Boden des Brennschachtes befindlichen Sehlackenaustragvorridhtung, dadurch gekennzeichnet, daß der Brennschacht durch lotrechte wassergekühlte Zwischenwände in der Schlackenaustragungs- und Luftströmungsrichtung in mehrere Brennkammern unterteilt ist und jede Brennkammer mit einer Schlackenausdrückvorrichtung versehen ist. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 386 826, 658 411; französ@isahe Patentschriften Nr. 1035 071, 1030 504; sc!h-%vedische Patentschrift Nr. 119 413.Claim: Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally and a Sehlackenaustragvorridhtung located at the bottom of the combustion shaft, characterized in that the combustion shaft is divided into several combustion chambers by vertical water-cooled partitions in the slag discharge and air flow direction and each combustion chamber is provided with a slag . Considered publications: German Patent Specifications Nos. 386 826, 658 411; French Patent Nos. 1035 071, 1030 504; Sc! h-% Vedic patent specification No. 119 413.
DEV7051A 1954-03-26 1954-03-26 Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally Pending DE1001445B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV7051A DE1001445B (en) 1954-03-26 1954-03-26 Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV7051A DE1001445B (en) 1954-03-26 1954-03-26 Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally

Publications (1)

Publication Number Publication Date
DE1001445B true DE1001445B (en) 1957-01-24

Family

ID=7571798

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV7051A Pending DE1001445B (en) 1954-03-26 1954-03-26 Shaft firing with a combustion shaft through which the combustion air predominantly flows horizontally

Country Status (1)

Country Link
DE (1) DE1001445B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098135B (en) 1956-04-09 1961-01-26 Stamicarbon Shaft firing for solid fuels

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE386826C (en) * 1922-08-25 1923-12-15 Metallbank & Metallurg Ges Ag Firing operation in shaft furnaces with layers of slag
CH119413A (en) * 1926-05-21 1927-06-16 Philipp Ruepp E Sliding door lock.
DE658411C (en) * 1935-01-15 1938-03-31 Adolf Schneider Auf Gut Maisza Shaft firing for solid fuels
FR1030504A (en) * 1950-01-06 1953-06-15 Directie Staatsmijnen Nl Method and automatic hearth for the combustion of coke, particularly coarse coke and other similar fuels
FR1035071A (en) * 1950-04-06 1953-08-14 Directie Staatsmijnen Nl Home improvement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE386826C (en) * 1922-08-25 1923-12-15 Metallbank & Metallurg Ges Ag Firing operation in shaft furnaces with layers of slag
CH119413A (en) * 1926-05-21 1927-06-16 Philipp Ruepp E Sliding door lock.
DE658411C (en) * 1935-01-15 1938-03-31 Adolf Schneider Auf Gut Maisza Shaft firing for solid fuels
FR1030504A (en) * 1950-01-06 1953-06-15 Directie Staatsmijnen Nl Method and automatic hearth for the combustion of coke, particularly coarse coke and other similar fuels
FR1035071A (en) * 1950-04-06 1953-08-14 Directie Staatsmijnen Nl Home improvement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098135B (en) 1956-04-09 1961-01-26 Stamicarbon Shaft firing for solid fuels

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