DE1027832B - Device for the dry, dust-free and airtight discharge of combustion residues from furnaces - Google Patents

Description

Device for the dry, dust-free and airtight discharge of Combustion residues from furnaces The invention relates to a device for dry, dust-free and airtight discharge of solid components. in particular of fly ash from combustion ducts. Flue gas drafts and the like

Corresponding devices are already known in which the space to be pocketed, for example a flue gas pass of a boiler, is closed off from the outside air by means of a flake cliielier. During the ash removal process, this slide is then opened and clears the way for the fly ash, which is then emptied into an ash trolley and the like. However, this facility has the disadvantage. After opening the slide, part of the fly ash escapes into the open air as a cloud of dust, a fact. which calls into question the clean operation of the boiler system and the like. In addition, due to the open chiebers a not inconsiderable amount of fresh-air S S penetrates into the Ra-uchgaszug of the boiler, whereby the Co content is reduced to the flue gases in very unpleasant manner. In addition, the flue gas volume is increased as a result of the additional amount of fresh air, so that the required power requirement for the induced draft increases naturally.

There are also purification facilities. inshescridere for pressurized firing become known, he wolc.heii (read vessels serving to remove the slag, preferably an ash trolley, expanded to be pressure-resistant and while it is being filled is placed under fire canine pressure. The connection between this vessel and Your slag collector takes place here via a flange in which a flat slide is built in.

The disadvantage of this arrangement is primarily that it is flawless Operation of this purification device requires the use of compressed air is. the pressure thereof being kept constant within small limits got to. In addition, it is very difficult to control the overpressure present in the vessel to effectively seal off the surrounding atmospheric air.

Containers for dust-free fly ash transport are also no longer new, which are arranged so that they can move four wheels on rails. This vessel is in the operating state Connected via a piece of pipe to a cap of the ash funnel, wherein under your liftable piece of pipe a conveyor in forums of a screw conveyor which removes the ashes stored in it before you lower the nozzle. Of the 'The disadvantage of this facility is that. that the variable pipe attachment very difficult to keep staulidiclit or only with difficulty in the vertical direction zii move is. In addition, operating the vessel is often done (read moving the Conveyor device poured. Then wcxlurch the vessel when lowering the pipe socket overflows and a considerable amount of dust occurs.

Mau has therefore tried to arrange the vessel so that it can be loved and lowered and the conveying device located under the fixed filler neck finitely with the help of the lifting device to drive the vessel. However, this measure was only able to achieve a small part of the Eliminate defects. The empty weight of the vessel must be lifted in spite of it being alone. which is disadvantageous insofar as considerable forces owing to the great weight must be spent. Furthermore, the ..1 £ narrower all-closing Dro.sselkla.ppe can only be moved without any expenditure of force if the "Air connection and the vessel are empty. Quite apart from that, this 1_solution is only possible in the case of a bunker arranged so that it can be moved on rails and under no circumstances Can be used for ash trolleys on castors.

The invention avoids all of these disadvantages and allows one. absolutely Airtight and dust-free discharge of fly ash from the flue gas flues of boilers with simple and reliable means.

It is characterized by the fact that the mouth of the bunker is extendable, has a mouth edge forming a sealing surface, non-positively with the locking body held by an adjusting lever in the mouthpiece arranged, downwardly and outwardly openable outlet member and connected to this - can be lowered together. and that when the bunker mouth is on the same axis with the Inlet opening of the ashtray legs lowering the mouthpiece of the mouth edge on (learn the ash trolley comes to sit on, whereupon the outlet organ of the Bunkers Is openable and in turn the inwardly openable inlet member of the Ash wagon opens.

In a further embodiment of the inventive concept, the pull-out Il # / Ifindungsstutzen of the bunker finite your bunker connected by a bellows. whereby the extendable mouthpiece of the bunker opposite your bunker through a or several compression springs is sprung. The locking body for the Aus.lahorgan is conical or pyramidal.

\ after emptying the bunker. closes in the ash trolley after moving the adjusting lever backwards, it is initially conical or pyramidal designed closure body iin the mouthpiece of the bunker, and thereby gives at the same time the inlay organ under spring tension in the ash trolley free to close. So that both locks are hermetically sealed, sc that after further indentation of the vers.tellliebels in the original starting position, the l #, lündungsstutzenii of the bunker under spring preload the non-positive one Connect with your ash truck so that it can be driven away full can.

Some other features of the spirit of the invention are as follows all hand of the drawing, nig explained in more detail: llit 1 is about the capacity of the ashtray 2 adapted bunker denotes the finite to the ash to be removed Space, for example the flue gas flue of a boiler. via a gate valve 3 communicates. The lower channel-shaped mouth piece 8 of the bunker 1 is Can be displaced in the axial direction via a bellows 4 and carries all of this below End of a sealing surface forming mouth edge 5, which over a or inehrerc compression springs 6 are put under tension. In your '- \ lündtingsstendungii 8 of the bunker 1 is arranged a lock, which consists of a cone or pyramid shape designed closure body 7 and. a corresponding positive sealing; itz ordered. The mouth edge 5 or the lock can for example by means of a Adjusting lever 0 finit Rastsclicibe and notch are moved in such a way. that in the first Moving phase of the same is first the edge of the mouth, which is under spring pressure 5 to the spring-loaded inlet member 10 of the ashtray 2 in a non-positive manner presses on. If the adjusting lever 9 is moved further, then the locking body 7 is in Muzzle 8 of the bunker 1 of the fly ash the U'eg in the ash trolley 2 thereby free that the inlet organ 10 pressed against the spring force in the Ascheliwageil2 will. During the entire duration of this process, the mouth edge 5 is the 1Iündungsstutzens 8 of the bunker 1 is continuously frictional to the inlet member 10 of the ash trolley 2 pressed, so that the possibility of false air entry during the filling process in the bunker 1 and thus in the boiler itself is absolutely excluded. It Naturally, it is also not possible for dust or fly ash in the form of a cloud Step out of your bunker 1 on Friday.

W; -in the discharge process has ended. then the adjustment lever 9 moved back, whereby the closure body 7 of the mouthpiece 8 of the bunker 1 returns to the closed position. This upward receding closure body 7 follows to the same extent the inlet, rgan 10 of the ash waggon 2, so that in the Closed position both sealing members are closed at the same time.

After further actuation of the adjusting lever9 the muzzle edge becomes 5 through the lock in the mouthpiece 8 of the bunker 1 against the spring force of the Compression springs 6 moved upwards, so that the frictional connection between the ash trolley 2 and Muzzle edge 5 solved and thus the necessary game for easy extension of the ash wagon 2 is produced.

To the inlet member 10 of the ashtray 2 exactly in the middle under the mouthpiece 8 of the bunker 1 are used in appropriate `` '' iron stop bars and the like. arranged on the top of the ashtray 2.

The invention has the following compared to the previous constructions Advantages: 1. Einwanafreit, niechanisclic ash removal without the possibility of air infiltration in the room to be ashed.

2. Al; absolutely dust-free ash removal.

3. Simple and reliable operation of the ash removal device by moving an adjustment lever in and out.

-I. Wedge the possibility of clogging the ash drainage channels the inclined side parts at about 50 °: ii of the closure body in the mouthpiece.

Claims (3)

PATENT CLAIMS: 1. Device for the dry, dust-free and airtight discharge of combustion residues from furnaces, in particular fly ash from Feueruiig: k; lnälen. Flue gas flues u. D- '1. by means of a closure device which can be tightly connected to the bunker mouth and the ash trolley, characterized in that. that the mouthpiece (8) of the bunker (1) can be pulled out. a mouth edge (5) forming a sealing surface. non-positively connected to the locking body (7), which is held by an adjusting lever (9) and which is arranged in the mouthpiece (8) and which can be opened downwards and outwards, and is finite with this and that with the bunker mouth being on the same axis, the inlet opening is finite of the ash trolley when abseiling the mouthpiece (8) whose mouth edge comes to sit on the ash trolley (2), whereupon the outlet organ of the bunker can be opened and in turn the inwardly openable springy inlet organ (10) of the A: scheilwagens (2) opens. 2. Apparatus according to claim 1, characterized in that the extendable mouth piece (8) of the bunker (1 ) finitely your bunker (1) is connected by a bellows (4). 3. Device according to claims 1 and 2, characterized in that the closure body (7) for the outlet member is conical or pyramidal. -1. Apparatus according to claims 1 to 3, characterized in that the extendable lünduligsstutzeli (8) of the bunker (1) opposite the bunker (1) is cushioned by one or more compression springs (6). Considered publications: German Patent Specifications Nos. 273 349, 292 948; Swiss Patent No. 230 237.