US1181338A - Means for feeding coal to boiler-furnaces. - Google Patents

Description

C. B. NEWCOMB.

MEANS FOR FEEDING COAL T0 BOILER FURNACES. APPLICATION man MAR.28.1914.

l q 3 3 8 a Patented May 2, 1916.

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'MEANS FOR FEEDING COAL T BOILER-FURNACES.

Specification of Letters Patent.

Patented May 2, 1916.

Application filed March 28, 1914. Serial No. 828,101.

To all whom it may concern:

Be it known that I, CYRUS B. NEWCOMB, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improve ments in Means for Feeding Goal to Boiler- Furnaces; and I. do hereby declare the following to be a full, clear, and exact description of the invention, such as" will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in means for feeding coal to boiler furnaces, and its object is to provide a device whereby coal may be taken from a railway car or other like conveyance and transferred to the furnace-of a boiler by mechanical means and in regulated quantity, and also by the same means pulverized to such an extent as to quickly burn when it reaches the furnace;

to provide the device with means for controlling the flow of fuel to the furnace, and to provide the device with various new and useful features hereinafter more fully described and particularly pointed out in the claims, reference being had to the accom-- panying drawings, in which Fi'gure 1 is an elevation illustrating an embodiment of my invention; Fig. 2 a sectional detail ofthe gate to shift the flow of the coal, eitherto the bin for containing the same, or to the'furnace as occasion may require; and Fig. 3 is an enlarged detail of the fan or blower modified to also act as a pulverizer for the coal passing therethrough.

Like numbers refer to like parts in all of the figures.

1 represents any ordinary steam boiler; 2 the grate of the furnace above which the fuel is burned;.3 a bin for storage of fuel,

7 located at any convenient point above the level of the furnace whereby the fuelwill flow by gravity from the bin to the furnace; 4 a centrifugal separator to separate the coal from the air used to convey the same; 5 a valve or gate below the separator to direct the flow of coal from the separator, either to the bin 3 or to the furnace, as oocasion may require; 6 a pipe communicating with the separator and leading downward to discharge the coal into the bin 3 7 a similar pipe leading directly from the bottom of the separator to the furnace, and 8 a like pipe communicating with the conical bottom of the bin 3 and the pipe 7 close to the.

furnace, to convey fuel from the bin to the furnace.

9 is a gate to control the flow of fuel through the pipe 8.

10 is a pipe communicating with the separator 4 at its upper end and thence extending to any convenient point for conveying the coal from a car 14 or other means of transportation, the coal used being a fine grade of coal adapted to be pneumatically conveyed, for which purpose a flexible pipe 3 is provided to take up the coal from the car 14 and convey the same to the fan blower 11, whereby it is sucked up from the car and carried through the pipe 10 to the separa tor l.

12 represents any suitable motor to drive the fan 11. This fan also operates as a means of further pulverizing the coal pass ing therethrough, .for which purpose the interior of the fan casing is provided with suitable corrugations 15 against which the coal is projected by the blades of the fan, whereby any lumps of larger size than would burn quickly in the furnace are broken up and pulverized and are thus also more readily conveyed and controlled in its flow to the furnace.

From the foregoing description the operation of this device is readily understood without further explanation.

What'I claim is l Means for feeding coal to a furnace, comprising" a separator elevated above the furnace, a blower communicating with the separator, a pipe connecting the bottom of the separator with the furnace, a fuel bin also located above the furnace, a pipe connecting the bottom of the separator with the fuel bin, a pipe connecting the bottom 'of the fuel bin with the furnace, a valve to alternately' direct the flow of fuel from the separator to either the, furnace or to the bin, and a valve to control the flow of the fuel from the bin to the furnace.

2. Means for feeding coal to a furnace,

comprising a blower adapted to-produce an the furnace, a valve to alternately direct the How of fuel from the separator either to the furnace or to the bin, and a valve to control the flow of fuel from the bin to the furnace.

3. Means for feeding coal to a furnace. comprising a separator above the furnace, a bin below the separator and above the furnace, a blower, a pipe to convey coal to the blower, a pipe to convey coal and air from the blower to the separator, a pipe to convey coal from the separator to the furnace, a pipe to convey coal from the separator to the bin, 21 pipe to convey coal from the bin to the furnace, and valves to control the flow of coal in the three last named pipes.

41. Means for feeding fuel to a furnace, comprising a blower, a pipe extending from the blower to deliver fuel to a point above the furnace, a storage bin also above the furnace, means for delivery of the fuel by gravity from said point either directly to the furnace or to the storage bin, means for nace, a storage bin also above the furnace,

a pipe extending downward from said point directly to the furnace, a pipe extending downward from said point to the storage bin, a pipe extending downward from said bin to the furnace, and valves in said pipes to direct and control the gravity How of the fuel directly into the furnace or indirectly into the furnace through the storage tank.

In testimony whereof I affix my signature in presence of two witnesses.

CYRUS B. NEVCOMB. \Vitnesses HAROLD O. VAN ANTWERP, MAE RANKIN.

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