Vertical sintering waste heat drive cooling heating and power generation system and method thereof

Abstract

The invention discloses a vertical sintering waste heat drive cooling heating and power generation system and a method thereof. The system comprises a vertical sinter cooling device, a waste heat boiler power and steam generation system, a double effect LiBr absorption chiller and a coolant cooling water client system. The method includes after the vertical sinter cooling device recovers heat of high-temperature sinter, allowing water to produce high temperature and high pressure steam through a heating boiler, driving a turbine to generate power, supplying hot steam extracted from the middle level of the turbine to the double effect LiBr absorption chiller, producing coolant water of the temperature of 7 to 10 DEG C to supply to cool users, and mixing the steam of the tail end of the turbine with room temperature supplement water to form hot water of the temperature of 75 to 90 DEG C to supply to heat users. Heat recovered through the vertical sinter cooling device can be used for power generation and concentrated heating and cooling, the comprehensive recovery and utilization efficiency of solid grain waste heat resource is improved effectively, the system and method can be popularized and applied to the metallurgical industry, particularly the steel industry, and energy saving and emission reduction are promoted effectively.

Description

technical field

[0001] The invention relates to a vertical sintering waste heat-driven combined cooling, heating and power system and a method thereof, in particular to a vertical sintering waste heat-driven combined cooling, heating and power system and method applied in fields such as the metallurgical industry and the iron and steel industry. Background technique

[0002] Sensible heat resources of sinter in the sintering process account for about 70% of the total waste heat resources in the sintering process. Improving the recovery and utilization rate of waste heat is one of the main measures for the recovery and utilization of waste heat in sintering. Among the 43 most effective energy-saving and emission-reduction measures for the iron and steel industry listed by the European Union, the energy-saving and emission-reduction effect of sintering waste heat recovery ranks sixth. At present, the widely used ring or belt coolers have disadvantages in sensible heat recovery...

Examples

Embodiment Construction

[0021] Such as figure 1 As shown, the vertical sintering waste heat driven combined cooling, heating and power system includes a sinter vertical cooling device 1, a waste heat boiler power generation and steam generation system 7, a double-effect lithium bromide refrigeration unit 19 and a refrigerant cooling water user end system 23; Type cooling device 1 includes sinter vertical cooling device body 2, annular air inlet pipe 64, central air inlet pipe 63, annular air inlet regulating valve 62, central air inlet regulating valve 61 and air outlet pipe 3; waste heat boiler power generation and steam The generating system 7 includes a waste heat boiler 10, a primary dust collector 4, a secondary dust collector 54, a circulating fan 56, an extraction back pressure steam turbine 12, a generator 14, a secondary economizer 57, a main water supply pipe 59 for the secondary economizer, Sub economizer auxiliary water supply pipe 58, relief valve 55, cold air intake valve 60, gas supply...

technical field

[0001] The invention relates to a vertical sintering waste heat-driven combined cooling, heating and power system and a method thereof, in particular to a vertical sintering waste heat-driven combined cooling, heating and power system and method applied in fields such as the metallurgical industry and the iron and steel industry. Background technique

[0002] Sensible heat resources of sinter in the sintering process account for about 70% of the total waste heat resources in the sintering process. Improving the recovery and utilization rate of waste heat is one of the main measures for the recovery and utilization of waste heat in sintering. Among the 43 most effective energy-saving and emission-reduction measures for the iron and steel industry listed by the European Union, the energy-saving and emission-reduction effect of sintering waste heat recovery ranks sixth. At present, the widely used ring or belt coolers have disadvantages in sensible heat recovery...

Examples

Embodiment Construction

[0021] Such as figure 1 As shown, the vertical sintering waste heat driven combined cooling, heating and power system includes a sinter vertical cooling device 1, a waste heat boiler power generation and steam generation system 7, a double-effect lithium bromide refrigeration unit 19 and a refrigerant cooling water user end system 23; Type cooling device 1 includes sinter vertical cooling device body 2, annular air inlet pipe 64, central air inlet pipe 63, annular air inlet regulating valve 62, central air inlet regulating valve 61 and air outlet pipe 3; waste heat boiler power generation and steam The generating system 7 includes a waste heat boiler 10, a primary dust collector 4, a secondary dust collector 54, a circulating fan 56, an extraction back pressure steam turbine 12, a generator 14, a secondary economizer 57, a main water supply pipe 59 for the secondary economizer, Sub economizer auxiliary water supply pipe 58, relief valve 55, cold air intake valve 60, gas supply...

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