Show GAS MAKING two new furnaces are being constructed ted at the gas works la in this city so eo that there may be no failure of the supply for illumination during the holidays when the demand on the gas plant Is ut usually lually as great as it can cope with the new furnaces are of somewhat din dif terent erent design to those hereto fore erected and used in that the fire aud and ash box are to be located beneath the floor band and the feeding place will be closer up between the retorts than in the other furnaces the output of the gasworks now to is about what it was ten years since the he introduction of ofeleo electric trio lighting being the cause for a non extension of the plant and service the time has been reached however when additions must be madeford ma defor the requirements for gas for illuminating and heating beating pur poses are steadily increasing and the plant of the salt lake company is 18 now DOW taxed to its utmost capacity the company had intended to erect a new and larger gas tank this fall but the pressure of A financial matters has caused the work to be deterred deferred till spring although not much to la beard of the gas works except in the way of settling bills for the illuminator it is quite an important industry i in n salt lake during the mouth month of october three million feet of gas were consumed in this oily taking Z about tons of coal for its ita production exclusive of the coke necessary for beating it this month the amount will be largely increased not less than twelve tons of bituminous coal being roasted every twenty four hours or tons a month As winter comes on the amount will go above this reaching about the holidays seventeen to eighteen tons of coal a day the gas company now has four fur naces in operation and one undergoing temporary repairs will be started up as soon as ready in each of these furnaces retorts are arranged in groups or benches it is usual in gas works to have them in odd numbers of three to seven placed thus Q Q Q Q Q in the salt lake wor works ka however three of the furnaces have three retorts in each while two others have six each arranged so that the heat beat from the burning coke reaches all of them each bach retort holds about pounds 0 of f coal from which the gas is driven off by a heat of more than 2000 deg fahrenheit the solid matter that re mains in the retort after the volatile substances go off in the gas is knoop know as gas coke which is used by the breweries and foundries and lor for heaters beaters it is not the purpose here to give a detail of the gas forming process though a brief sketch may not be uninteresting when the gas which con bains the volatile products leaves the retorts it passes up to and along a hydraulic main in which cooling en by a condensation of vapors and the taking out of the tar particles from the main it goes into a series of U tubes where it is in cooled in the salt lake works to 65 degrees degree sj 1 IF and is thus largely freed from its impurities puri ties the gas is brought down to the temperature stated in order to produce the quality used here for illuminating mina ting and heating it if the standard of temperature ture was higher there would be more gas but its quality would not be so rich in a separate building from fram that in which the cooling pipes are placed is an engine which performs the duty of an exhauster ex haueter reducing the pressure on the retorts drawing the gas through fine selves and forcing it into condensers den sers then the gas is washed by being passed through a scrubber of coke under a spray of water it is next passed through purifiers contain ing slaked lime between strainers and is there relieved of its ted hydrogen and other impurities which render its use dangerous to life from there it is conducted to the meter which measures quantities up to ten tu million illion feet then it goes to the gasholder tom from which it is in dl distributed tributes tri buted through the mains from the record kept by the meter meters s figure the company can compute the entire quantity of gas that has been manufactured since the plant was placed in operation when the new furnaces now being constructed are completed there will be six in opera operation tiDD with a capacity for using about 24 tons of coal per day in gas production or about seven even and a half million feet of gas gaa per month |