US968000A - Gas-producer. - Google Patents

Description

J. 0. E. TROTZ.

GAS PRODUCER.

APPLIGATION FILED JAN. so, 1905.

968,000. Patenteii Aug. 23, 1910. 2 sums-sum 1.

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J. 0. E. TROTZ.

GAS PRODUCER.

APPLIOATION FILED JAR. 30, 1905.

Patent ed Aug. 23, 1910.

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JOHAN 0. E. TROTZ, 0F WORCESTER, MASSACHUSETTS.

GASrPRODUGER.

Specification of Letters Patent.

Application filed January 30, 1905. Serial No. 243,178.

To all whom itnmry concern: I

Be it known that I, JOHAN O. E. Tno'rz, a citizen of Sweden, residing at Worcester, in the county of lVorcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in Gas-Producers, of which the following is a specification accompanied by drawings, forming a part of the same, in which Figure 1 is a vertical central sectional view of a gas producer embodying my invention. Fig. 2 is a sectional view on line 2.2, Fig. 1, and Fig. 3 is a top view of the gas escape pipes from the gas producing chamber.

Similar reference letters and figures refer to similar parts in the diiferent views.

My invention relates to means for producing gas to be used in furnaces, gas on gines, or for fuel for general purposes; and comprises means for removing most of the volatile constituents from the coal in a chamber in order to sufficiently coke the coal to prevent it from sticking together, transferring the coked coal to a second chamber where the combustion of coal is continued by admitting a current of air and steam and conducting the volatile constituents of the coal which have been removed in the first chamber through the incandescent mass of coal in the second chamber.

Referring to the accompanying drawings 1 denotes the coking chamber in which the volatile constituents of the coal are removed by the application of heat and 2 the second or gas producing chamber, preferably placed at a lower level in order that gravity may aid in the transfer of coal from the first to the second chamber. chamber 1 through a pipe 3 which terminates at its upper end in a hopper of the usual construction, not shown. Air, preferably accompanied by steam, is introduced into chamber 1 through twyers 4. Near the top ofchamber 1 pipes 5 lead downward and enter the chamber 2 at 6, 6, and form the only exit from chamber 1 for the volatile products of the coal. At the bottom of chamber 1 is a hollow sliding plate 7 in which water circulates through pipes 8, 8.. The plate 7 is further provided against the injurious effects of heat by being provided with a fire brick covering 9. Supported upon a bracket 10 at, the side of the furnace is a chamber 11 to receive the plate 7 when it is withdrawn from the coking chamber Coal is admitted to 1 to allow the incandescent mass of coal to rest upon the horizontal bottom 12 of the chamber. Space, on opposite sides of the chamber 1, for the reciprocating movement of the plate 7 is provided between hollow rectangular water pipes 13 and 14. Pivotally attached to the side Wall of the chamber 1 is an inclined plate 15 whose lower edge rests upon the top of the plate 7, thereby acting as a scraper and preventing the conveyance of ashes or fuel into the chamber 11 during the withdrawal of the plate 7.

The gas producing chamber 2 extends at 16 above the lower end of the coking chamber 1, so that a communication is established between the two chambers by the withdrawal of the plate 7. The return movement of the plate 7 will push any fuel in its path forward into the extension 16 from which it will fall by gravity. into the gas producing chamber 2. The relative position of the extension 16 of the gas producing chamber and the openings 6, 6, is so arranged that a space 6 of the gas producing chamber 2 immediately below the openings 6, 6, will remain clear of fuel, thereby affording an opportunity for the free entrance of the volatile constituents of the coal which have been conducted through the pipes 5 from the coking chamber 1. The lower end of the gas producing chamber 2 is provided on one side with an inclined grate 17 provided with holes 18 for the admission of air to the incandescent mass of coal in the gas producing chamber. Air, prefer ably mixed with steam, is supplied to the gas producing chamber through a pipe 19 by which the process of combustion in the chamber 2 is continued, the ashes falling through a central opening into an ash box 20. On the opposite side of the gas producing chamber from the free space 6, the fixed gas produced in the chamber is removed through one or more pipes 21.

The method of operation of my improved gas producer is as follows :A fire is kindled in chamber 1 to which coal is fed by the pipe 3 and its combustion is assisted by a blast of air through the twyers 4. hen the chamber 1 has become filled with coal and a considerable portion of it has become incandescent, the plate 7 is given a reciprocating movement by any suitable means, not shown, thereby allowing the mass of incandescent coal to rest upon the bottom wall 12 of the chamber, so that the Patented Aug. 23, 1910.

return movement of the plate 7 will push the coal lying in its path forward into the upward extension 16 of the gas producing chamber 2, and this operation is repeated as often as the mass of coal at the bottom of the chamber 1 becomes sufficiently coked to prevent it from sticking together, and the removal of coal by the reciprocating movement of the plate 7 is supplied by fresh coal through the pipe 3. From the extension 16 coal falls by gravity into the gas producing chamber 2 until the latter has become filled. Any tendency of' the coal to stick together in the upper portion of the coking chamber 1 may be prevented by pokers inserted through the openings 22 and any conglomerate mass of coal formed in the lower portion of the coking chamber 1 will be broken apart by the reciprocating. movement of the plate 7. As the coal transferred to the gas producing chamber 2 has become sufliciently coked to prevent its sticking together, poking or otherwise disturbing the mass of coal in the gas producing chamber 2 is unnecessary, and the combustion of coal in the gas producing chamber proceeds uniformly and uninterruptedly by the admission of air and steam through the pipe 19 and openings 18in the grate 17. During the combustion of coal in the gas producing chamber 2 the volatile products which are given off in the coking chamber 1 are conducted through the pipes 5 into the open space 6 from which they pass through the mass of incandescent coal in the gas producing chamber 2 to the exit pipe 21, causing the volatile products to be decomposed and form a fixed gas which is intimately intermingled with the fixed gas produced in the chamber 2, thereby rendering the quality of the gas uniform and obviating the deposit of soot in the pipe 21. The inclined plate 17 has its openings 18 for the passage of air preferably increased in number toward the bottom of the plate and they are protected by a series of curved longitudinal ribs 23 which prevent the access of ashes to the openings 18. The gas escape pipe 21 communicates with a horizontal drum 25,which is connected with the gas producing chamber 2 by a multiplicity of pipes 24:, 24, in order to render the withdrawal of gas from different parts of the chamber more uniform, and also efiect a better distribution of the volatile constituents of the coal throughout the mass of incandescent coal in the gas producing chamber.

What I claim as my invention and desire to secure by Letters Patent is 1. In a gas producer, the combination with a gas producing chamber and means for admitting air thereto, of a combustion chamber above said gas producing chamber normally closed to communication with and in a difierent vertical plane from said gas producing chamber, means for admitting coal to said combustion chamber, twyers communicating with said combustion chamber at a point above the plane of the bottom of said combustion chamber, thereby supplying air to a portion only of the fuel in said combustion chamber, means for transferring by a lateral movement coal rendered incandescent by its combustion in ,said combustion chamber to said gas producing chamber, and means for conducting the fixed gas from said as producing chamber without contact with said combustion chamber or the fuel therein.

2. In a gas producer, the combination with a combustion chamber with an opening in its top for the admission of coal and means for discharging coke from the bottom of said chamber by a lateral movement, of a gas producing chamber below and in a different vertical plane from said combustion chamber, a vertical extension from the top of said gas producing chamber arranged to receive coke from said combustion chamber and conduct it into said gas producing chamber, with the top of said gas producing chamber arranged at different angles with its walls, on one side of said extension greater and on the other side less than the angle of repose of the coal in said gas producing chamber, thereby leaving a space at one side of said gas producing chamber above the coal, means for conducting the products of combustion from the top of said combustion chamber into said space, and means for conducting the fixed gas from the gas producing chamber on the opposite side from said space.

3. In a gas producer, the combination with a combustion chamber with an opening at its top for the admission of coal and an opening at the bottom for the discharge of coke, of a gas producing chamber, a smaller extension from the top of said gas producing chamber, arranged to receive coke from said discharge 0 ening and conduct it into said gas pro ucing chamber, with the top of said gas producing cham ber at one side of said extension arranged above the plane of the top of the coke in said gas producing chamber, and with the top of said chamber on the other side of said extension in contact with the contents of said chamber.

4:. The combination with a gas producing chamber, of an independent vertical combustion chamber above said gas producing chamber and in a difi'erent vertical plane, means for supplying coal to the top of said combustion chamber, means communicating with said combustion chamber substantially midway of said chamber for supplying air thereto, means for transferring coal by a lateral movement from the bottom of said combustion chamber to the top of said gas producing chamber, and means for admitting air to said gas producing chamber.

5. In a gas producer, the combination with a gas producing chamber, of a combustion chamber distinct from said gas producing chamber, means for admitting coal to said combustion chamber, twyers for admitting air to said combustion chamber arranged substantially in the horizontal plane of the center of said combustion chamber, means for conducting the volatile products of combustion of the coal in said combustion chamber to one side of said gas producing chamber, means for transferring coked coal from said combustion chamber to said gas producing chamber, means for admitting air to said gas producing chamber, and means for conducting the fixed gas from the other side of said gas producing chamber.

6. In a gas producer, the combination with a gas producing chamber having an opening at its top for the admission of coal and an opening at its bottom for the discharge of ashes, of an inclined plate at the bottom of said chamber for deflecting the ashes to said discharge opening, said plate having a series of openings for the passage of air, and a series of ribs preventing the access of ashes to said openings.

7. In a gas producer, the combination with a gas producing chamber, of a combustion chamber above said gas producing chamber, means for admitting coal to said combustion chamber, means for admitting air to said combustion chamber, means for transferring by a lateral movement the incandescent coal from the bottom of said combustion chamber to the top of said gas producing chamber, a pipe connecting the top of said combustion chamber with the top of said gas producing chamber at one side thereof, and means for I conducting the fixed gas from the other side of said gas producing chamber below the top of said chamber.

8. In a gas producer, the combination with a gas producing chamber, of a separate combustion chamber above said gas producing chamber for coking the coal fed to said gas producing chamber, means for feeding by a lateral movement the incandescent coal from the bottom of said coking chamber to one side of the top of said gas producing'chamber, a pipe connecting the top of said coking chamber with an open space at the other side of the top of said gas producing chamber, and means for withdrawing the fixed gas from the side of said gas producing chamber opposite to said open space and below the top of said gas producing chamber.

9. In a gas producer, the combination with a gas producing chamber, of a separate combustion chamber above and at one side of said gas producing chamber for coking the coal to be fed to said gas producing chamber, means for feeding by a lateral movement incandescent coal from the bottom of said coking chamber to one side of the top of said gas producing chamber, with said gas producing chamber so constructed as to provide upon the opposite side of said chamber from the admission opening for coal an open space which will remain clear of coal, a pipe connecting the top of said coking chamber with said open space, and means for Withdrawing the fixed gas from said gas producing chamber from the side opposite to said open space.

JOHAN O. E. TROTZ. Witnesses:

RUFUS B. FOWLER, PENELOPE CoMBERBAoH.

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