US1115194A - Apparatus for removing flue dust or dirt and the like. - Google Patents

Description

W. G. HAY. APPARATUS FOR REMOVING FLUE DUST 0R DIRT AND THB LIKE. APPLIOATION FILED JULY25,1914.

1,1 1 5, 1 94. Patented Oct. 27, l1914.

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W. G. HAY.

APPARATUS PoRv RBMQVING FLUE DUST 0R DIRT AND THE LIKE. APPLIOATIUN FILED JULY 25,1914.

1 ,1 1 5, 1 94. Patented oen. 27, 1914.

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WILLIAM GEORGE HAY, 0F PRESTWICH, ENGLAND.

APPARATUS DOR REMOVNG FLUE DUST OR DIRT .AND THE IKKE.

Specification of Letters Patent.

Patented Get. 2?, 1914.

Application lcd July 25, 1914. Serial No. 853,179.

T0 all whom t may concern Be it known that l, WILLIAM GEORGE HAY, a subject of the lingof England, residing at 104 Kings road, Prestwich, in the county of Lancaster, England, have invented new and useful improvements in and Connected with Apparatus for Re moving Flue Dust or Dirt and the like, of which the following is a specification.

This invention has reference to apparatus or means for removing and dealing with dust or dirt or granular matter from )dues of steam generators and other furnaces; and from other analogous chambers; and more particularly to the system wherein the dust and like matters is moved by a vacuum created within the vessel, say by a steam ejector, and the dust or material is conveyed through a pipe-owing to the vacuum and air acting on the material to the vessel in which the vacuum is maintained; and the matters so collected are subsequently discharged from the vessel or container into which they have been moved.

VThe exhausting of the vessel into which the dust or dirt is delivered, and the discharge of the airfrom it, is effected by a fluid ejector apparatus, to which power steam is delivered by an automatically op erated valve, which operates in one direc tion, namely, closes, when the/vessel is full or charged to the required degrees, the weight of the charge moving it down, and releases a discharge door or valve. The whole vessel moves, and is balanced by weights such as weighted levers, and supported on a frame or gantry; while the steam valve is adapted to open against the pressure of steam, when the apparatus is empty after discharging, and is lifted up by its weights; and, vice versa, the valve is closed by a `spring and the pressure of steam, when the vessel is full, and falls by its own Weight.

The invention will be further described with reference to the accompanying drawings, which show an arrangement and combination of parts comprising the characteristics above described.

ln these drawings, Figure 1 is a vertical section of the apparatus; and Fig.. 2 an outside view seen at 90 degrees from that given in Fig. 1.

1 represents generally the body of the receiver or the vessel into which the dust or dirt is introduced; 2 is the pipe conveying the air carrying the dust or dirt to the vessel, it being connected to a central hood or box 3 on the upper cover 4 of the vessel, and leading into a central pendant conduit 5, dipping down into the interior of the vessel.

6 represents the upper casting fr ring of the upper end of the vessel 1, on which rests the cover 4; and the air passed into the vessel is carried away from it into a chamber 7 formed within this ring 6 by an annular flange 8, and a depending flange 9 on the cover 4; between the lower portion of which, and the edges of the ring or iiange 8, there is a narrow annular aperture 10, or ring of apertures, through which the air passes into the chamber 7 rlfhe steam jet ejector is generally designated 12; and its induction passage is connected up and communicates with the annular chamber 7. rlhe ejector is of any known suitable kind, and has a steam supply pipe 13, and a discharge pipe 14; and it also has a readily removable door 15 on it, so that the internal parts may be readily got at and cleaned if they become choked or dirty. v

rthe vessel is carried by rods 16 suspended from the movable weighted levers 17, the fulcra of which are supported in the gantry frame 18. The vessel is guided by rods 19, and these rods are .provided with stops which limit the upward and downward travel of the vessel. The lower end of the vessel is tapered as shown; and this portion is in the form of an inverted conical or hopper casting 20, having at its lower edge, a seat 21 surrounding or forming thedischarge mouth of the apparatus in connection with which works the bottom door 22; the edge of which is provided vwith a suitable packing 23, which constitutes the face of this valvular door. The door 22 iscarried by and operated through a vertical shaft 25, and a weighted lever 26 which passes through it and is fulcrumed at 27 and is also connected up at its outer end with an operating apparatus hereinafter described. The shaft 25 is supported and guided by a bracket 30, fixed by a ring 31 to the neck of the hopper 20; the bracket having bearings 32, 38, carried from the bottom of it, and carryingalso the fulcrum 27, by a link, as shown.

The steam supply valveJ 45 is fixed on the hood 3, and moves with the vessel 1, and the spindle 44 of the valve operates in connection with a plate 40 on the tramey 18. This valve opens downwardly, and closes upwardly, by a spring, so that when the vessel moves up, the spindle 44 will be pressed down, and the valve 45 is opened; and when it moves do-wn it is closed.

The door 22 is operated by a cylinder 46, attached to the hopper 20, and a piston 47, which is connected to the weighted lever 26 by the rod and links 48, 49. The steam is introduced into the upper part of the cylinder 46 by a pipe 50 connected with the main steam pipe 13, at a point between the valve 45 and the ejector 12; so that the steam is only supplied to this cylinder 46 when the valve 45 is open.

In practice, the pipe 50 condenses the steam in it, so that the cylinder 46 will in fact be filled with water, which works better than the steam direct.

1n action, assuming the ejector l2 to be in action, and the door 22 closed, a rarefac tion will be created within the vessel 1, and therefore the dust or dirt carried by the air, will be caused to flow through the p ipe 2, into lthe interior of the vessel 1. The fluid will thus pass into the vessel 1, and the dust or dirt particles will, to a very large degree, fall and separate from the air. When a certain quantity of material has accumulated in the vessel 1, greater in weight than that of the weights of the levers 17, it will fall, and the spindle 44 will leave the plate 40, `and so the falling action of the vessel will close the valve 45, and cut oft" the steam ejector motor fluid, so that the rarefaction in the vessel 1 will cease; while the steam supply by the pipe 50 to the cylinder 46 will also be cut ott by the closure of the valve 45. Hence, the lever 26 now released of the counter vpressure due to the steam acting on the piston 47, can move, and the door 22 will open, and the contents of the apparatus will flow out of it. When the vessel is empty, the weights of the levers 17 being greater than the weight of the vessel land its attached parts, will lift it up, and so through valve spindle 44 coming in contact with the plate 46, will open the valve 45, and supply again steam both to the ejec tor 12 and to Vthe door actuating cylinder 46; the action of which will cause the piston 47 to descend and move the door 22 toward lits seat; and the ejector being now in action, a current of air will be caused to flow "in through the annular space existing through the door packing 23, and the hopper seat 21,

and will sweep "Gli" any dust or 'dirt lying on' these parts, as the area between the valve and the door is gradually decreasing in closing, and this constitutes a self-cleansing action, and assures a tight closure of the door. The pipe 2 may be led to the place from where the dust is to be removed, and in `the case of i this being the flue of a steam generator, it

will be led to a point adjacent to them, with suitable branches to which a flexible pipe to rwhich the intake nozzle is attached, will be connected up.

ported by the gantry frame 18 above the ground or surface a considerable height, so that the contents can be dropped into a cart direct, or other vehicle.

What is claimed is 1. An apparatus for the removal of dust, dirt or the like comprising the combination with a vertically movable vessel adapted to collect and hold the material to be removed, means for holding the vessel in its uppermost position when the vessel isempty, said means allowing the vessel to fall as it becomes charged, a steam exhausting apparatus connected with the vessel, steam operated means for discharging the contents of the vessel, of a valve located on the Vsteam supply tor controlling the supply of steam to the exhausting apparatus and to the discharging means, said valve opened and closed by the upward and downward movement of the vessel, the parts arranged as and for the purpose described.

2. An apparatus for the removal of dust, 1

dirt or thelike comprising a vertically movable vessel adapted to collect and hold the material to be removed, means for holding the vessel in its uppermost position when taneously controlling the steam supply eX- hausting apparatus and discharging and collecting` means, Vthe for the purpose described. o

8. An apparatus for the removal of dust, dirt or the like, comprising a vertically movable vessel adapted to collect and hold the materialto be' removed, means for holding the vessel in its uppermost position when the said vessel is empty, steam operated means for opening and closing the vessel for discharging and collecting the material to be removed, said means normally closing the vessel when it is in its uppermost position, a steam exhausting' apparatus connected with the vessel, a valve in the steam supply for controlling the steam supplied to the eX- hausting apparatus, and to the discharging and collecting means.y the said valve operated by the upward and downward movement of the vessel, wherebv it automatically allows the steam eXhaust-ingapparatus to operate and the discharging means to be closed-when the vessel is in its uppermost position and shutting oli:l the steam exhausting apparatus parts arrangedpas and Y,

and opening the discharging means when the vessel has reached a limit of its downward movement.

4. An apparatus for the removal of dust, dirt or the like comprising a vertically movable vessel adapted to collect and hold the material to be removed, means for holding the vessel in its uppermost position when it is empty, a steam supply pipe, an exhausting mechanism in communication with the steam supply and also with the vertically movable vessel, steam operated means for opening and closing the vessel for discharging and collecting the material to be removed, said means communicating with the steam supply, a valve in the steam supply pipe for cutting off steam pressure to the exhausting apparatus and discharging means when it is closed, the said valve operated by the upward and downward movement of the vessel, the said valve adapted to be open when the vessel is at the limit of its upward movement and closed when the vessel is at the limit of its downward movement,` the weight of the material in the vessel providing means for raising and lowering it against the means for normally holding it at the limit of its upward movement, the parts arranged as and for the purpose described.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

VILLIAM GEORGE HAY.

Witnesses:

SOMERVILLE GooDALL, RoBERT WITTER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patent i Washington, D. C.

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