TH23237A - How to replace sludge from paper mills to another material? - Google Patents

Abstract

Replace the sludge from a paper mill or sludge. Similar organics with high ash content By burning sludge In a cyclone furnace in combination with other fuel sources Keep the heat content of the sludge and change the ash content of the Sludge to a glassy molten sludge. May add auxiliary substances The molten sludge, such as limestone, is deposited into sludge before it is sent into a cyclone furnace. Molten sludge is useful as a building material, abrasive agent, for roofing products. Or for other purposes

Claims (3)

1. Method for replacing sludge from paper mill. And other similar organic sludge with high ash content. This includes sending the sludge into a cyclone furnace with fuel from a second source to burn the sludge and store the sludge's heat value. And to convert the amount of ash containing sludge to sludge 2. Method according to claim 1, where the sludge is heated to the furnace from approximately 10% to approximately 40% of sludge. All heat that is delivered to the furnace 3. Method of claim 1 where sludge Provide heat input to the kiln that exceeds 50% of the heat delivered to the entire kiln. 4. Method according to claim 1 where the sludge is made. To dry to the right moisture content for Operation before it is sent into the cyclone kiln. 5. Method for changing the pulp from the paper mill. And other similar organic salads With high ash content Which includes Drying the sludge until the moisture content is approximately equal. 20% or less and the burning of dried sludge in a cyclone furnace in combination with a second fuel source. To collect the calorific value of the sludge and convert the amount of ash contained in the sludge to the molten residue. 6. Method according to claim 5, in conjunction with the process of recombining the sludge first. Incineration 7. Methods for replacing ash in sludge. Which contains significant amounts of organic substances And the ash content is approximately between 20% and approximately 50% on a dry basis. Included Burning sludge in a cyclone furnace to produce hard, strong, and durable glass-like molten sludge, including ash, and to separate the molten sludge from the furnace. 8. Method according to Clause 7, where Sludge. Dry until the moisture content is approx. 20% or less before incineration 9. Method according to claim 7, where the molten sludge is cast in the formwork. It is a product similar to glass 1 0. Method according to claim 7 where the molten residue is made into fibers 1 1. a method for delivering fuel into a cyclone furnace Included Sending fuel into the furnace with natural gas and at the same time the fuel into the furnace Sludge from a paper mill or Another similar organic salad With 1 high ash content 2. Methods for delivering fuel into a cyclone furnace Included Transferring fuel into the kiln with sludge from the paper mill. Or another organic salad Similar With a high content of ash; And at the same time one or more additional fuels are sent into the furnace 1 3. Method according to claim 12, where sludge provides the highest mass flow rate in Any fuels sent into the furnace