58results about How to "Guaranteed heat reduction rate" patented technology

The invention discloses a mechanical grate type single-furnace garbage gasifying incineration system which comprises a gasifying incinerator, a cyclone combustion chamber and an air supply system, wherein the gasifying incinerator comprises a feed hopper and a furnace body; a stockpile sealing segment is arranged between the feed hopper and the furnace body; the upper end of the furnace body is arched and provided with a first flue gas outlet; and the cyclone combustion chamber is used for secondary combustion and is provided with a flue gas inlet connected with the first flue gas outlet. A garbage disposal method comprises the following steps: Step A, starting and drying the incinerator; Step B, burning garbage in a furnace chamber; Step C, realizing continuous garbage gasifying incineration disposal; and Step D, shutting down the mechanical grate type single-furnace garbage gasifying incineration system after the garbage and garbage residues burn out. By the use of the mechanical grate type single-furnace garbage gasifying incineration system, large-scale continuous garbage gasifying incineration disposal can be realized, the garbage disposal capacity and the garbage transport capacity are higher, the heat recovery efficiency is high, and the emission of pollutants is effectively reduced.

The invention discloses a mechanical grate type waste gasifying incinerator which is smaller in heat conversion efficiency loss and is higher heat recovery efficiency, and a boiler power generation system thereof. The mechanical grate type waste gasifying incinerator comprises a gasifying incinerator, a boiler system, an air supply system and a power generation system, wherein the gasifying incinerator comprises a gasifier and an incinerator, the gasifier and the incinerator can be sealed or communicated, and an upper end of the gasifier and the incinerator are respectively provided with a smoke outlet; the boiler system comprises a boiler body, the boiler body is provided with a cyclone combustion chamber, a furnace chamber a and a furnace chamber b which are communicated with one another, a water-cooled wall is arranged in the cyclone combustion chamber, superheaters are arranged in the furnace chamber a, an evaporator is arranged in the furnace chamber b, and a top end of the boiler body is provided with a steam drum; the power generation system comprises a steam turbine, a power generator and a steam input pipe, an output end of the steam turbine is sequentially connected with a condenser, a water pump, a low-pressure steam water heater, a deaerator, a booster pump and a high-pressure steam water heater, and first-stage and second-stage water-steam separators and first-stage and second-stage high-pressure steam-steam heaters are arranged between air cylinders of the steam turbine.

The invention discloses a mechanical grate type waste gasifying incinerator and a processing method thereof. The gasifying incinerator comprises a feed bin, a gasifying furnace and a burning furnace, wherein the burning furnace is positioned on the front lower part of a slag dropping opening of the gasifying furnace, a stockpile sealing section is formed between the feed bin and the gasifying furnace, a residue stoker is arranged between the gasifying furnace and the burning furnace, the upper ends of the gasifying furnace and the burning furnace are respectively arched, and smoke outlets are respectively formed in the upper ends of the gasifying furnace and the burning furnace. The waste processing method comprises the steps of A. igniting and drying; B. burning waste in a hearth of the gasifying furnace; C. performing continuous gasification and incineration on the waste; D. shutting off the mechanical grate type waste gasifying incinerator after the waste and waste residues are burnt out. When the mechanical grate type waste gasifying incinerator is used for processing the waste, the waste conveying capability is strong, the waste processing capacity is large, the heat recovering efficiency is high, and the pollutant discharge can be effectively reduced.

The invention discloses a mechanical fire grate type rubbish gasification incinerator which is smaller in heat efficiency conversion loss and higher in heat recovery rate and a dual-boiler energy-saving power generation system of the mechanical fire grate type rubbish gasification incinerator. The mechanical fire grate type rubbish gasification incinerator comprises a gasification incinerator body, a boiler system, a circulation air supply system and a power generation system; the gasification incinerator body comprises a gasification boiler and a burning ash boiler which can be sealed or communicated; the boiler system comprises boiler bodies a and b, the boiler body a is provided with a cyclone burning chamber and boiler chambers a and b, the boiler body b is provided with a boiler chamber d and a cyclone dust removal chamber, water cooling walls are arranged in the cyclone burning chamber and the cyclone dust removal chamber, a superheater unit is arranged in the boiler chamber a, and an evaporator is arranged in the boiler chamber b; and a superheater unit and an evaporator are arranged in the boiler chamber d, steam pockets are arranged at the top ends of the two boiler bodies, a smoke inlet of the cyclone burning chamber is connected with a smoke outlet of the gasification incinerator body, and a smoke inlet of the cyclone dust removal chamber is connected with a smoke outlet of the burning ash boiler. The power generation system comprises a steam input pipe, a steam turbine and a power generator, and the steam input pipe is connected with the superheater units a and b and the steam turbine.

The invention discloses a gas turbine-steam turbine coaxial combined power generation system based on waste gasification. The gas turbine-steam turbine coaxial combined power generation system comprises a waste gasification incineration system, a boiler system and a power generation system, wherein the power generation system comprises a mixer, an air compressor, a synthetic flue gas compressor, a synthetic flue gas combustion chamber, a turbine, a steam turbine, a power generator, a waste heat boiler and a water supply input system; the inlet of the mixer is connected with the saturated steam outlet of a steam manifold and the air outlet of the air compressor; the water outlet of the mixer is connected with the water inlet of the steam manifold; the steam outlet of the mixer is connected with the steam inlet of a super-heater; the gas inlet of the flue gas compressor is connected with the waste gas discharge outlet of the boiler system; the steam outlet of the super-heater and the gas outlet of the flue gas compressor are connected with the synthetic flue gas combustion chamber, the turbine and the waste heat boiler in sequence; the steam outlet of the waste heat boiler is connected with the steam inlet of the steam turbine; the turbine, the steam turbine and the power generator are in power connections. By adopting the gas turbine-steam turbine coaxial combined power generation system, large-scale continuous waste gasification treatment can be performed, high heat recovery efficiency is achieved, and pollutant discharge is reduced.

The invention discloses a boiler power generation system utilizing rubbish gasification and incineration synthesis gas. The boiler power generation system is small in heat conversion efficiency loss and higher in heat recovery efficiency. The boiler power generation system comprises a steam turbine, a generator, a high-pressure steam input pipe and a medium-pressure steam input pipe. The steam turbine comprises a high-pressure steam cylinder, a medium-pressure steam cylinder and a low-pressure steam cylinder. A first-stage water-steam separator and a first-stage high-pressure steam-steam heater are connected between the high-pressure steam cylinder and the medium-pressure steam cylinder. A second-stage water-steam separator and a second-stage high-pressure steam-steam heater are connected between the medium-pressure steam cylinder and the low-pressure steam cylinder. The steam output end of the low-pressure steam cylinder is connected with a condenser, a water pump, a low-pressure steam-water heater, a deaerator, a booster water pump and a high-pressure steam-water heater in sequence through a pipeline. The high-pressure steam input pipe is connected with the high-pressure steam cylinder and is connected with the deaerator through the heating end of the first-stage high-pressure steam-steam heater, the heating end of the high-pressure steam-water heater, the heating end of the second-stage high-pressure steam-steam heater and the heating end of the low-pressure steam-water heater.

The invention belongs to the technical field of hazardous waste incineration, and discloses a hazardous waste rotary kiln incineration process which is realized by adopting a hazardous waste rotary kiln. The hazardous waste rotary kiln comprises a cylinder body, the two ends of the cylinder body are respectively provided with a kiln head cover and a kiln tail cover in a rotatably and hermeticallyconnected manner, the lower part of the kiln tail cover is provided with a slag outlet, and the kiln head cover is cylindrical; a main air hole and an auxiliary air hole are formed in the side wall ofthe kiln head cover, the main air hole is located in the top of the kiln head cover, the main air hole and the auxiliary air hole are not located in the same circumferential line of the kiln head cover, the main air hole is formed close to the cylinder body, and the auxiliary air hole is formed in the side away from the cylinder body; hazardous waste is thrown into the cylinder body to be incinerated, after the temperature in the cylinder body rises to 1000-1150 DEG C, air is supplied into the kiln head cover from the main air hole and the auxiliary air hole, and the air speed of the main airhole and the air speed of the auxiliary air hole are consistent; and after the hazardous waste is incinerated, ash slag is guided out from the slag outlet. By means of the hazardous waste rotary kilnincineration process, it can be guaranteed that the ignition loss rate is low after hazardous waste is incinerated, and the excess air coefficient is low, so that the hazardous waste can be fully incinerated, and heat losses in the incineration process can be reduced.

The invention discloses a wet air turbine power generation system based on recycling of garbage gasifying synthesis gas. The wet air turbine power generation system based on recycling of the garbage gasifying synthesis gas comprises a garbage gasifying system, a boiler system and a power generation system, wherein the power generation system comprises a mixer, a low-pressure air compressor, a high-pressure air compressor, a turbine, a generator, an air steam-gas heat exchanger, a CO2 steam-gas heat exchanger, a CO2 fan, a recycling fan, a mixing separator, a CO2 separator and a water supply feeding system of the boiler system; the CO2 separator is connected to space between a waste gas discharge opening of the boiler system and a gas inlet of the CO2 fan; and a gas outlet of the turbine is in parallel connection with heating channels of the CO2 steam-gas heat exchanger and the air steam-gas heat exchanger, and is then connected with the recycling fan and the mixing separator. By the wet air turbine power generation system based on recycling of garbage gasifying synthesis gas, a large amount of garbage is continuously gasified and incinerated, the treatment amount of the garbage is high, recycling efficiency of heat is high, regenerated chemical raw materials and synthesized natural gas can be extracted, and near zero emission of pollutants and CO2 can be realized effectively.

The invention discloses a double-layered mechanical grate type garbage gasifying incinerator and boiler system which comprises a double-layered garbage gasifying incinerator, a boiler system and a circulating air supply system, wherein the double-layered garbage gasifying incinerator comprises a feed hopper, a gasifier and a burn-out furnace; the burn-out furnace is located under the gasifier; the feeding direction of the burn-out furnace is opposite to that of the gasifier; flue gas outlets are formed in the upper end of the gasifier and the upper end of the burn-out furnace; the boiler system comprises a boiler body; the boiler body is provided with a cyclone combustion chamber, a furnace chamber a and a furnace chamber b, which communicate with one another; a water wall is arranged in the cyclone combustion chamber; a superheater is arranged in the furnace chamber a; an evaporator is arranged is the furnace chamber b; a steam drum is arranged at the top end of the boiler body; a steam-water inlet is formed in the steam drum; the steam drum is connected with a water inlet of the water wall and a water inlet of the evaporator to output water; a steam outlet of the water wall and a steam outlet of the evaporator are connected with a steam inlet of the steam drum to reflux steam; and a saturated steam outlet of the steam drum outputs superheated steam through the superheater.

The invention discloses a mechanical grate type garbage gasification and incineration furnace and double-boiler power generation system with relatively small heat conversion efficiency loss and higher heat recovery efficiency. The system comprises a gasification and incineration furnace, a boiler system, a circulating air supply system and a power generation system, wherein the gasification and incineration furnace comprises a gasifier and an incinerator, which can be sealed or communicated; the boiler system comprises boiler bodies a and b; the boiler body a comprises a cyclone combustion chamber and furnace chambers a and b; the boiler body b comprises a furnace chamber d and a cyclone dust chamber; water cooling walls are arranged in the cyclone combustion chamber and the cyclone dust chamber; a superheater is arranged in the furnace chamber a; an evaporator is arranged in the furnace chamber b; a superheater and an evaporator are arranged in the furnace chamber d; steam pockets are arranged at the top ends of the two boiler bodies; a smoke inlet of the cyclone combustion chamber is connected with a smoke outlet of the gasifier; a smoke inlet of the cyclone dust chamber is connected with a smoke outlet of the incinerator; the power generation system comprises a steam inlet pipe, a steam turbine and a power generator; and the steam inlet pipe is connected with the superheaters a and b and the steam turbine.

The invention discloses a mechanical grate type waste gasification incinerator with less conversion thermal efficiency loss and higher thermal recovery efficiency and a boiler system of the waste gasification incinerator. The mechanical grate type waste gasification incinerator comprises a gasification incinerator, the boiler system and a circulating air supply system, wherein the gasification incinerator comprises a feeding bin, a gasifier and a burnout furnace, a stockpiling sealing section is arranged between the feeding bin and the gasifier, a transition slag blanking section is arranged between the gasifier and the burnout furnace, and flue gas outlets are formed in the upper ends of the gasifier and the burnout furnace respectively. The boiler system comprises a boiler body, the boiler body is provided with a cyclone combustion chamber, a furnace chamber a and a furnace chamber b which are mutually communicated, a water cooling wall is arranged in the cyclone combustion chamber, a superheater is arranged in the furnace chamber a, an evaporator is arranged in the furnace chamber b, a steam drum is arranged at the top end of the boiler body, a steam-water inlet is formed in the steam drum, the steam drum is connected with water inlets of the water cooling wall and the evaporator and used for outputting water, steam outlets of the water cooling wall and the evaporator are connected with a steam inlet of the steam drum for backflow of steam, and a saturated steam outlet of the steam drum outputs superheated steam through the superheater.

The invention discloses a mechanical grate type garbage gasifying and incinerating system and a combustion chamber with an inverted-cone-shaped cavity. The cavity of the combustion chamber with the inverted-cone-shaped cavity comprises a combustion channel, a conical channel, a fly ash settling chamber, a conical slag outlet, an annular smoke channel and an annular draught flue, wherein the combustion channel, the conical channel, the fly ash settling chamber and the conical slag outlet are successively arranged from top to bottom; the annular smoke channel and the annular draught flue surround the conical channel; the top of the conical channel is small while the bottom of the conical channel is large; the diameter of the fly ash settling chamber is greater than that of the lower end of the conical channel; the annular smoke channel is conical; the top of the annular smoke channel is small while the bottom of the annular smoke channel is large; the lower end of the annular smoke channel communicates with the fly ash settling chamber; the lower end of the annular draught flue communicates with the upper end of the annular smoke channel; and the top of the conical slag outlet is large while the bottom of the conical slag outlet is small. The combustion chamber with the inverted-cone-shaped cavity has relatively high dust removal efficiency and combustion efficiency and relatively high heat recycling efficiency; controlled combustion and controlled collection can be realized; heat loss is reduced; and emission of pollutants can be reduced effectively.

The invention relates to the technical field of hazardous waste incineration, and particularly discloses a hazardous waste rotary kiln incineration air supply method. The method is achieved through animproved air supply structure. The air supply structure comprises a supporting frame, a rotary drum and a kiln head cover. The kiln head cover is cylindrical, a main air hole and an auxiliary air hole are formed in the side wall of the kiln head cover, the main air hole is located in the top of the kiln head cover, the main air hole and the auxiliary air hole are not located in the same circumferential line of the kiln head cover, the main air hole is close to the rotary drum, and the auxiliary air hole is away from one side of the rotary drum. When the temperature in the rotary drum rises toa preset value, air is supplied into the kiln head cover from the main air hole and the auxiliary air hole, and the air speeds of the main air hole and the auxiliary air hole are consistent. Throughmodel simulation, the air excess coefficient of hazardous waste incineration is controlled to range from 0.8 to 1.0 to adjust the air supply amount, the rotary turbulence flow field of the scheme is obtained through calculation, the hazardous waste incineration heat ignition loss rate of a rotary kiln can be lower than 3%, thus, the scheme can guarantee the much lower heat ignition loss rate on the premise that the low excess coefficient is guaranteed, and the combustion rate is increased.