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Energies 2020, 13, 6586 2 of 26 etc.,wEnherigciehs2a0c20c,o1u3,nxtFsOfRoPrEEaRboREuVtIE2W0%offuelconsumption.Wasteheatresourcesinthepape2romf26aking Energies 2020, 13, x FOR PEER REVIEW 2 of 26 industry mainly come from drying cylinder, steamer, waste gas and black liquor, etc., the waste heat industry mainly come from drying cylinder, steamer, waste gas and black liquor, etc., the waste heat industry mainly come from drying cylinder, steamer, waste gas and black liquor, etc., the waste heat resource in the textile industry is mainly derived from the dryer, slasher, digester, etc., and machinery resource in the textile industry is mainly derived from the dryer, slasher, digester, etc., and machinery resource in the textile industry is mainly derived from the dryer, slasher, digester, etc., and machinery industry waste heat resources mainly come from the forged reheating furnace, cupola furnace and industry waste heat resources mainly come from the forged reheating furnace, cupola furnace and industry waste heat resources mainly come from the forged reheating furnace, cupola furnace and heat treatment furnace, etc., the respective fuel consumption accounting for about 15%. Most of the heat treatment furnace, etc., the respective fuel consumption accounting for about 15%. Most of the heat treatment furnace, etc., the respective fuel consumption accounting for about 15%. Most of the industrial heat belongs to low-temperature waste heat, which is difficult to recycle on a large scale. industrial heat belongs to low-temperature waste heat, which is difficult to recycle on a large scale. industrial heat belongs to low-temperature waste heat, which is difficult to recycle on a large scale. In China, according to the data of the survey report on utilization of industrial waste heat resources, In China, according to the data of the survey report on utilization of industrial waste heat resources, In China, according to the data of the survey report on utilization of industrial waste heat resources, energeynerregsyourerscoeusricnestiintusttietu,tbey, b2y021051,5t,htehewwaassteterresourcesoffsseevvenensusruvrevyeydeidndinusdturisetsrwieesrwe exrpeeecxtepdected energy resources institute, by 2015, the waste resources of seven surveyed industries were expected tobeto34b0em34i0llimonillitonstosntsasntdanadrdardcocaola,lw,whhicichhwasequiivaalelennttotoabaobuotu3t03%0%ofothfethineduinsdtruiaslterniaelrgeynergy to be 340 million tons standard coal, which was equivalent to about 30% of the industrial energy consumption. The amount of waste heat resources in seven industries is shown in Figure 1. During consucmonpsutimonp.tioTnh.eTahmeaomunoutnotfowfawsatsetehheaeattrreessourcesinseveennininddusutsritersieisisshoshwonwinFiinguFriegu1.reDu1.riDnguring the 11th Five-Year, the industrial waste heat resource utilization rate was 34%, and the utilization of the11ththe1F1itvheF-Yiveea-rY,etahre,tihnediunsdtursiatrliawlawsatsetehheaeattrreessourceutiilliizzaatitoionnrartaetwewasa3s4%34,%an,danthdetuhtieliuzatitlioiznaotifonof waste heat resources is shown in Figure 2 [2]. If various waste heat resources can be effectively used, waste heat resources is shown in Figure 2 [2]. If various waste heat resources can be effectively used, waste heat resources is shown in Figure 2 [2]. If various waste heat resources can be effectively used, not only can it improve the utilization rate of resources, but also effectively alleviate the pressure of not only can it improve the utilization rate of resources, but also effectively alleviate the pressure of not only can it improve the utilization rate of resources, but also effectively alleviate the pressure of the the energy crisis. the energy crisis. Table 1. Status of industrial waste heat resources based on different industries. Table 1. Status of industrial waste heat resources based on different industries. energy crisis. Industry Industry Industry Metallurgy Metallurgy Source of Waste Heat Resources Source of Waste Heat Resources Source of Waste Heat Resources Rolling steel heating furnace, Soaking pit, Open hearth furnace, Rolling steel heating furnace, Soaking pit, Open hearth furnace, Percentage of Fuel Percentage of Fuel CPoenrscuemntpagtieonof Fuel Consumption Consumption above 33% above 33% Metallurgy Blast furnace above 33% Chemical Chemical Chemical reaction heat, Cfuormnabcuestible chemical heat, etc. Chemical reaction heat, Combustible chemical heat, etc. above 15% above 15% Chemical Chemical reaction heat, Combustible chemical heat, etc. above 15% Building material High-temperature flue gas, Kiln crow cooling and high High-temperature flue gas, Kiln crow cooling and high approx. 40% approx. 40% Building material High-temperature flue gas, Kiln crow cooling and high temperature Building material temperature products, etc. temperature products, etc. products, etc. Glass melter, enameling furnace, pot furnace, etc. Glass melter, enameling furnace, pot furnace, etc. Glass melter, enameling furnace, pot furnace, etc. Drying cylinder, steamer, waste gas, black liquor, etc. approx. 40% Glass approx. 20% Glass approx. 20% approx. 20% Glass Papermaking approx. 15% approx. 15% Papermaking Drying cylinder, steamer, waste gas, black liquor, etc. Papermaking Drying cylinder, steamer, waste gas, black liquor, etc. approx. 15% Textile TextTileextile Dryer, slasher, digester, etc. Drryyeerr,,sllasher, digester,,ettc.. approx. 15% apparpoxp.ro15x%. 15% Table 1. Status of industrial waste heat resources based on different industries. Blast furnace Rolling steel heating furnace, Soaking pit, Open hearth furnace, Blast Forged reheating furnace, cupola furnace, heat treatment Machinery ForgeFdoregheedatrienhgefautirngacfeu,rcnuapcoel,acufupronlacfeu,rhneactet,rehaetamtetrnetaftumrneancte,etc. approx.15% furnace, etc. furnace, etc. Machinery Machinery approx. 15% approx. 15% 17,122 17,122 4,000 4,000 2,000 2,000 0 0 18,000 18,000 16,000 16,000 14,000 14,000 12,000 12,000 10,000 10,000 8,000 8,000 6,000 6,000 Unit: Ten thousand ton standard coal Unit: Ten thousand ton standard coal Steel Steel Synthetic Synthetic 495 1408 Caustic Calcium Caustic Calcium Sulphuric Sulphuric 9300 9300 Cement Cement 311 311 Glass Glass 3454 3454 1940 495 1408 1940 ammonia ammonia soda carbide acid soda carbide acid Figure 1. The amount of waste heat resources in seven industries. FiguFirgeu1re.T1.hTehaemamouounnttooffwasteheatressoouurcrcesesininsesveevneindinudsturisetsr.ies. Unit: Ten thousand ton standard coal Unit: Ten thousand ton standard coal Steel Steel Cement Cement Glass Glass Synthetic ammonia Synthetic ammonia Caustic soda Caustic soda Calcium carbide Calcium carbide Sulphuric acid Sulphuric acid 108 108 1244 1244 2450 2450 1149 1149 64 64 243 243 3560 3560 Figure 2. Utilization of waste heat resources during 11th Five-Year. R Re es i s di du ua al l h he ea at t r re es es er rv ve es sPDF Image | Development and Application of the Twin Screw Expander
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