TWI364408B - A method for sintering aggregates from wasted sludge - Google Patents

Description

1364408 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for sintering aggregates with waste sludge, and in particular to a method in which a waste sludge is subjected to high-temperature sintering in a plurality of steps to produce a certain strength. The above-mentioned artificial aggregates are designed to re-use resources for the purpose of perfecting recycling. [Prior Art] According to the construction, civil engineering, agriculture, some laid foundation materials are used. Most of these aggregates are taken from the rock and stone blocks of nature, which are made by excavation and then crushed and ground. The size of the aggregate size required by all walks of life, however, these natural materials will destroy the natural ecology and beauty after decades of mining and cutting. Continued, in the natural environment, such as rivers, lakes or reservoirs that have water storage, they have the relationship and function of connecting with the natural environment, and the water of these rivers, lakes or reservoirs can bring us the landscape. In addition to water supply and other functions, there will be muddy water in the water and sedimentation as sediment. These sediments will only accumulate thicker and change the surface or water storage capacity of rivers, lakes or reservoirs. In addition, the water source will be introduced. The water purification treatment is carried out through the water purification treatment field, and waste sludge is generated during the treatment. The waste water (soil) generated by the clean water after being used in the life and factory process is discharged before being discharged into the natural water body. All must be cleaned and treated by the wastewater treatment plant. The treatment process will also produce a large amount of wastewater sludge. These abandoned sludges can no longer be used for other purposes, and they must be removed by personnel; therefore, if these natural Or the use of artificially derived resources, 5 In addition to improving the above problems, there is another kind of development for the benefit of mankind, which is believed to be a great boon for mankind. In view of this, the inventors of the present invention have been researching and improving the existing state and its lack of research, and have provided an innovative waste sludge for many years. The method of sintering aggregates with a view to completely improving all existing defects. SUMMARY OF THE INVENTION The present invention relates to a method for sintering aggregate 1 by waste sludge, which is mainly a sediment produced by a q reservoir (lake), a river, or a water treatment plant and waste (sewage) water. The waste sludge produced by the treatment plant is subjected to crushing and screening, and then stirred and mixed, a drying process, a grinding process, a granulation process and a sintering process to produce artificial aggregates having a compressive strength standard to provide construction, civil engineering, The use of a variety of uses such as agriculture is the first application of the inventors. [Embodiment] 7 In order to make the technical means of the present invention more complete and clear, please refer to the drawings and drawings, and the details are as follows: First, please refer to the first figure, The flow chart of the method for scraping the sinter of the sinter of the present invention is as follows: 'Abandoned sludge (S1): The waste sludge can be sent through various waste (sewage) water treatment plants to produce sludge and purified water. It is obtained from the sludge produced by the plant, the sediment in the river, and the sediment in the reservoir (lake); and the solid content of the waste sludge obtained requires the mineral of cerium oxide plus alumina [Si〇2+Al2〇3]. Ingredients and must be higher than

Claims (1)

1364408 _ February 20, 2011 Revision Replacement Page 10, Patent Application Scope: - 1. A method for sintering aggregates with waste sludge, the process steps are as follows: (1) Waste sludge is taken away from waste materials Sludge, and the content of minerals of cerium oxide plus oxidized [Si〇2 + Al2〇3] in the waste sludge and solid waste sludge shall be ** ·» higher than 40% (w/w), and Its solubilizing mineral content*; not higher than a quarter of the cerium oxide plus alumina component; (2) drying procedure 1 control the moisture content of the waste sludge to a ratio of 10 to 25%, and the drying temperature Controlling the removal of highly volatile organic substances between 300 and 400 ° C; (3) Grinding procedure - the dried sludge is pulverized by grinding equipment, and the crushed sludge particles are at least The granulation process is as follows: the granulation process is carried out by using a sizing machine to form a pulverized waste sludge powder into a coarse embryo, and the density of the coarse embryo must be higher than 0. 8g/cm3 or more, and the thickness is between 0. 1~3cm; (5) Sintering procedure - rough embryo sintering in a flip-type heating mode, which is less than 8 ° C / min Speed, continue to heat up until 1000 ° C~1250 ° C · sintering temperature of, when the sintering temperature is reached, in order to maintain a constant temperature. After warming at least one hour, followed by natural cooling down to room temperature refined manner by sintering. 2. As described in the scope of claim 1, the scrap sludge sintered aggregate material 13 1364408 - February 20, 2003 revised replacement page method, wherein the waste mineral component of the waste sludge step contains aerobic calcium At least one of magnesium oxide, iron oxide and potassium oxide [CaO, MgO, Fe2〇3 and K2O]. 3. If the waste sludge is sintered in the waste sludge step according to the first paragraph of the patent application, in the waste sludge step, a certain proportion of minerals is added when the cerium oxide plus alumina cerium mineral component is insufficient. Materials, and its mineral materials include mineralized additives, clay, ceramic soil, diatomaceous earth, rock ore, incineration, incineration fly ash, waste dream sand powder, waste glass - glass powder at least one. 4. If the waste sludge is sintered in the waste sludge as described in the third paragraph of the patent application, the different types of waste sludge and the different mineral materials are added to the waste sludge, and the mixture is further pre-charged through a stirring and mixing step. Mix the parts to facilitate the progress of the subsequent steps. 5. The method of sintering aggregate material by waste sludge according to item 4 of the patent application, wherein the granulation step is carried out by a molding machine having a maximum load of at least 8000 kg. 6. The method of sintering aggregate material by waste sludge as described in claim 5, wherein the shape of the rough embryo in the granulation step is preferably a spherical shape. 7. The method for sintering aggregate material by waste sludge according to item 6 of the patent application, wherein the inverting heating mode described in the sintering procedure step is capable of rotating at any time during the sintering process. Single coarse. The surface of the embryo particles is surrounded by a high temperature furnace and must be exposed to a heat source of the same temperature as the set value. 8. As described in the scope of patent application, the scrapping of the aggregate material of the waste sludge, 14 1364408 - February 20, 2010, is replaced by a rotary furnace body, which is thick. 5rpm。 The embryo fill rate must be less than 30%, and the flip speed must be greater than 0. 5rpm. 9. A method for sintering aggregate material by using waste sludge, the process steps are as follows: ' (1) Waste sludge is taken from waste sludge in waste resources, and the waste sludge solids are added with oxygen dioxide. 'Ming Ming [Si〇2 + Al2〇3] must have a mineral content of more than 40% (w/w), and its fluxing mineral composition is not higher than a quarter of that of cerium oxide plus alumina; 2) Drying procedure: control the moisture content of the waste sludge to a ratio of 10~25%, and control the drying temperature to 300~40 (to remove high volatile organic substances between TC; (3) the grinding process will dry The waste sludge is crushed by the grinding equipment, and the particle size of the crushed sludge is at least 10 mesh; (4) Granulation procedure: the waste sludge powder to be ground by the molding machine The grain is made into a coarse embryo, the density of the coarse embryo must be higher than 0. 8g/cm3 or more, and the thickness is between 0. 1~3cm; ' (5) Sintering procedure: the coarse embryo is sintered into a jr f ' shape in a static heating mode The thickness of the rough pile layer is not large. At 10cm, the multi-stage heating method is adopted, and the room temperature is up to 500 °C. Temperature rise rate less than 8 ° C / min, 501 ° C to 600 ° C stage with less than 15 1364408 101 February 20 曰 correction replacement page 3 ΐ / π ΰ η heating rate, 6 〇 rc to 85 〇 t stage to less than 8 ° C/min heating rate, 851. (: Straight 950 ° C stage with a temperature increase rate less than St / nlin '951 ° C to the sintering temperature stage with a temperature increase of less than 8 ° C / min, this way to the temperature up to 1G00 ° When the sintering temperature is C~1250 °C, when the sintering temperature is reached, the sintered product is cooled to room temperature by a natural temperature reduction method after holding at a constant temperature for at least two hours. H). Stained, corpse can be / Nie ^ knot oxygen, the magnesium minerals in the magnesia contains and Κ 2 〇] at least - species 2 iron and gasification but [Ca 〇, MgO, Fe2 〇 3 11. The method of applying for the patent scope is the same as the method of the patent, wherein the waste minerals of the waste sludge sintered aggregate are required to be in the step = the step of cerium oxide plus vaporized aluminum, the mineral material of which contains two: plus a certain proportion Mineral material, while algae, rock, incineration = additive, clay, ceramic soil, At least one kind of glass powder. -~, incinerated fly ash, waste sand powder 'waste 12 · If applying for patent Fan Guyu method, which does not _= the waste sludge sintered bone material in waste sludge, who needs one Disposing the sludge and adding different mineral materials in advance, and mixing them in a step by a mixing and mixing step. 13. As in the scope of the patent application, the subsequent steps are carried out. Method 'The process of sintering the waste sludge 4 steps In the maximum load of at least coffee 16 1364408 - February 20, 101 revised replacement page • More than one kilogram of molding machine. - 14. The method of claim 13, wherein the shape of the rough embryo in the granulation step is preferably a spherical shape. 17