CN204193958U - Comprise the thermal analysis apparatus of the active carbon of UTILIZATION OF VESIDUAL HEAT IN - Google Patents
Comprise the thermal analysis apparatus of the active carbon of UTILIZATION OF VESIDUAL HEAT IN Download PDFInfo
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- CN204193958U CN204193958U CN201420487725.3U CN201420487725U CN204193958U CN 204193958 U CN204193958 U CN 204193958U CN 201420487725 U CN201420487725 U CN 201420487725U CN 204193958 U CN204193958 U CN 204193958U
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Abstract
There is provided a kind of thermal analysis apparatus comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN, this device mainly comprises: active carbon Analytic Tower (1); Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1); Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6); Combustion fan (5); For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the tail end air outlet of heating furnace (6); Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section of heating furnace (6) afterbody; For the cooling blower (8) of cooling zone (3) input normal temperature air; For discharging the 4th pipeline (L4) of cooling air from cooling zone (3); From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With gas conveying tube road (L6).
Description
Technical field
The utility model relates to the thermal analysis apparatus of the active carbon comprising UTILIZATION OF VESIDUAL HEAT IN, more particularly, the utility model to relate in the dry desulfurization comprising activated carbon adsorber and Analytic Tower (or regenerator), denitrification apparatus the method for the heat recovery of the heated air (as air or hot blast) that analytically tower exports the device that uses, belong to sinter fume process field.
Background technology
For the sintering device flue gas of industrial smoke, especially steel and iron industry, adopt and comprise the desulphurization and denitration device of activated carbon adsorber and Analytic Tower and technique is more satisfactory.In the desulphurization and denitration device comprising activated carbon adsorber and Analytic Tower (or regenerator), activated carbon adsorber is used for the pollutant comprising oxysulfide, nitrogen oxide and dioxin from sinter fume or waste gas (especially the sinter fume of the sintering machine of steel and iron industry) absorption, and Analytic Tower is used for the hot recycling of active carbon.
Activated carbon desulfurization have desulfurization degree high, denitration, Tuo bioxin, dedusting can be realized simultaneously, do not produce the advantages such as waste water and dregs, be extremely promising flue gas purifying method.Active carbon can at high temperature regenerate, and when temperature is higher than 350 DEG C, adsorbs the pollutant generation fast resolving such as oxysulfide, nitrogen oxide, dioxin on the activated carbon or decomposition (sulfur dioxide is resolved, and nitrogen oxide and bioxin are decomposed).And along with the rising of temperature, the reproduction speed of active carbon is accelerated further, recovery time shortens, preferably in general control Analytic Tower, regenerating active carbon temperature approximates 430 DEG C, therefore, desirable resolution temperature (or regeneration temperature) be such as 390-450 DEG C of scope, more preferably 400-440 DEG C of scope.
As shown in Figure 1, similar is adopted to carry out parsing, the regeneration of active carbon in the regenerator (or Analytic Tower) of shell and tube heat exchanger in prior art, active carbon enters from the top of tower, the bottom of tower is arrived via tube side, and enter from side for the heated air of heat activated charcoal, via shell side, export from opposite side, wherein active carbon and heated air are carried out heat exchange and are heated to regeneration temperature.In order to active carbon in Analytic Tower being heated up and remaining on about 430 DEG C, general employing burning blast furnace gas or coke-stove gas heat cycles hot blast, the hot blast temperature entering Analytic Tower is made to be 400-500 DEG C, in Analytic Tower, hot blast and active carbon carry out heat exchange, active carbon temperature rises to about 430 DEG C, and heat gas temperatures is down to about 320 DEG C.
In order to the active carbon of active carbon Analytic Tower inside is heated up and remains on 390-450 DEG C, general employing burning blast furnace gas or coke-stove gas are that heated air (as air) provides heat, in heating furnace, make hot blast be warming up to 400-500 DEG C, enter Ta Nei again and active carbon carries out indirect heat exchange, after heat exchange, active carbon temperature rises to 390-450 DEG C, and now hot blast temperature is down to about 320 DEG C, again send into heating furnace through hot air circulation blower to heat up, iterative cycles like this, as shown in Figure 1.The burning of blast furnace gas or coke-stove gas needs combustion air, therefore need ceaselessly to add a certain amount of combustion air to hot air circulating system, hot air circulating system pressure increase can be caused like this, therefore in order to steady heat air circulating system pressure need arrange air bleeding valve on pipeline, so that part high-temperature gas (about 320 DEG C) in discharge pipe.
Could be delivered to adsorption tower through conveying equipment after active carbon after parsing need cool to recycle, this cooling procedure adopts air indirectly to cool, and after active carbon cooling, cooling air temperature is about 100 DEG C, general direct discharge.
Therefore, the hot blast of about about 320 DEG C and the cooling-air of about 100 DEG C directly discharge, and can have lost a large amount of heat energy.
Utility model content
At the dry desulfurization comprising activated carbon adsorber and Analytic Tower of the present utility model, in denitrification apparatus and technique, adsorb from sinter fume in adsorption tower and comprised oxysulfide, nitrogen oxide and dioxin are transferred at the active carbon of interior pollutant in the thermal treatment zone of the Analytic Tower (or regenerator) with the thermal treatment zone on top and the cooling zone of bottom, the heated air G1 of the active carbon moved down in this thermal treatment zone and input (is called for short hot blast G1, as 400-500 DEG C, more preferably the heating furnace exhaust of 410-470 DEG C or hot blast or hot-air) carry out indirect heat exchange and heat temperature of (or intensification) extremely such as 390-450 DEG C of scope, active carbon is resolved usually at such a temperature, regeneration.Wherein regenerator or Analytic Tower have the thermal treatment zone on top and the cooling zone of bottom.Usually, the described thermal treatment zone has shell pipe type heat exchanger structure.Equally, described cooling zone also has shell pipe type heat exchanger structure.Active carbon respectively via the tube side of the thermal treatment zone and cooling zone, and heated air or high-temperature flue gas in the thermal treatment zone via shell side, cooling air in cooling zone via shell side.There is buffering area or mesozone that one is held active carbon between the thermal treatment zone and the cooling zone of bottom on top.
The heated air G1 (hot blast) entering into the thermal treatment zone of Analytic Tower carries out indirect heat exchange with the active carbon moved down in the thermal treatment zone and reduces temperature (such as to about 320 DEG C), become the hot blast G1 ' of cooling or become warm heated air G1 ' and (have 280-350 DEG C, preferred 290-330 DEG C, more preferably from about 300-320 DEG C).Simultaneously, by cooling blower using normal temperature air G2 (as cooling air or cooling-air) analytically the cold air inlet in tower cooler district be passed in the cooling zone of Analytic Tower, indirect heat exchange is carried out to cool the active carbon that Thermal desorption has occurred with the active carbon moved down in cooling zone, analytically the cooling air that exports of the cooling air outlet of the cooling zone of tower or cooling-air G2 ' are therefore warming up to such as 90-120 DEG C (according to appointment 100 DEG C), now become the cooling air G2 ' (90-120 DEG C, 100 DEG C according to appointment) of intensification.
In the operation of Analytic Tower, when by combustion fan combustion air being input to the air inlet of the combustion chamber in heating furnace, blast furnace gas or coke-stove gas are transfused in the combustion chamber of heating furnace and burn after flowing through a heat exchanger and being preheated, the high-temp waste gas of discharging from combustion chamber or high-temperature hot-air (G0) (such as have 1100-1900 DEG C, preferred 1300-1600 DEG C) equalizing section flowing through heating furnace afterbody (or is called mixing, buffering area) be conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, further preferably 420-450 DEG C) and become there is such as 400-500 DEG C (preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, further preferably 420-450 DEG C) hot blast (G1), hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline, hot blast G1 in the input thermal treatment zone carries out indirect heat exchange with the active carbon moved down in this thermal treatment zone and lowers the temperature, such as be cooled to 280-350 DEG C of (preferred 290-330 DEG C, 320 DEG C according to appointment), then the hot blast of having lowered the temperature (G1 ') (had 280-350 DEG C usually, the temperature of preferred 290-330 DEG C, such as about 320 DEG C) to discharge from the hot-blast outlet of the thermal treatment zone that (the hot blast G1 ' of discharge is referred to as the hot blast of row " ", it generally has 280-350 DEG C, the temperature of preferred 290-330 DEG C, such as about 320 DEG C).
The purpose of this utility model the hot blast G1 ' (being all or at least its major part) that the hot-blast outlet of the analytically thermal treatment zone of tower is arranged is divided into two strands of hot-air flows and hot-air flow (1) and hot-air flow (2) outward, wherein a blast of hot air air-flow (1) is transported in the heat exchanger being in heating furnace upstream for preheating blast furnace gas or coke-stove gas, another burst of hot-air flow (2) (about 300 DEG C) is transported to equalizing section (or the mixing of heating furnace afterbody, buffering area) in (usually there is 1100-1900 DEG C with the high-temperature hot-air (G0) escaping and enter this equalizing section from combustion chamber, preferred 1300-1600 DEG C) carry out mixing and being conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further), therefore the hot blast (G1) of mixture is formed, and the hot blast be mixed to form (G1) has 400-500 DEG C of (preferred 410-480 DEG C usually, more preferably 415-470 DEG C, more preferably 420-460 DEG C, further preferably 420-450 DEG C) temperature, this hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline.It is further preferred that the air inlet that the cold wind G2 ' of the analytically cooling air outlet discharge of the cooling zone of tower is guided to combustion fan, sent into the air inlet of the combustion chamber of heating furnace by combustion fan.Therefore, the waste heat of the outer thermal wind exhausting G1 ' (280-350 DEG C, 300 DEG C or 320 DEG C or 330 DEG C according to appointment) of the thermal treatment zone and outer row's cold wind G2 ' (90-120 DEG C, 100 DEG C according to appointment) of cooling zone is all utilized.As the blast furnace gas of fuel or coke-stove gas after preheating, burning is more abundant, and calorific value is fully used.
According to first embodiment of the present utility model, provide a kind of Thermal desorption method comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN, the method comprises:
1) active carbon having adsorbed the pollutant comprising oxysulfide, nitrogen oxide and dioxin in the activated carbon adsorber of desulphurization and denitration device from sinter fume is transferred to the thermal treatment zone of active carbon Analytic Tower from the bottom of adsorption tower, wherein desulphurization and denitration device comprises activated carbon adsorber and Analytic Tower, and wherein Analytic Tower (or regenerator) has the thermal treatment zone on top and the cooling zone of bottom;
2) when utilizing combustion fan to deliver air to the air inlet of the combustion chamber of heating furnace, blast furnace gas or coke-stove gas are transported in the combustion chamber of heating furnace and burn after flowing through a heat exchanger and being preheated, the high-temp waste gas of discharging from combustion chamber or high-temperature hot-air (G0) (such as have 1100-1900 DEG C, preferred 1300-1600 DEG C) equalizing section flowing through heating furnace afterbody (or is called mixing, buffering area) be conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, further preferably 420-450 DEG C) and become there is such as 400-500 DEG C (preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, as 430-440 DEG C) hot blast (G1), hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline, hot blast G1 in the input thermal treatment zone carries out indirect heat exchange with the active carbon moved down in this thermal treatment zone and lowers the temperature, such as be cooled to 280-350 DEG C of (preferred 290-330 DEG C, 320 DEG C according to appointment), then the hot blast of having lowered the temperature (G1 ') (had 280-350 DEG C usually, the temperature of preferred 290-330 DEG C, such as about 320 DEG C) to discharge from the hot-blast outlet of the thermal treatment zone that (the hot blast G1 ' of discharge is referred to as the hot blast of row " ", it generally has 280-350 DEG C, the temperature of preferred 290-330 DEG C, such as about 320 DEG C),
3) in the thermal treatment zone of Analytic Tower, active carbon carries out indirect heat exchange with the hot blast (G1) as heated air and is heated or be warming up to regenerating active carbon temperature (or active carbon resolution temperature) T1, causes active carbon to carry out resolving, regenerating at this T1 temperature; With
4) resolve in the thermal treatment zone on top, the active carbon of regeneration enters into the cooling zone of bottom via the buffering area of a centre, simultaneously by cooling blower using normal temperature air G2 (as cooling air or cooling-air) analytically the cold air inlet in tower cooler district be passed in the cooling zone of Analytic Tower, indirect heat exchange is carried out to cool active carbon with the active carbon moved down in cooling zone, analytically the cooling air outlet of the cooling zone of tower is discharged cooling air or cooling-air (G2 ') (it is had such as 90-120 DEG C, the temperature of 100 DEG C according to appointment) (cold wind of discharge is referred to as the cooling air of outer row), (wherein cooled active carbon is moved down into the Lower Hold of Analytic Tower from cooling zone),
It is characterized in that: analytically the hot blast G1 ' that arranges outward of the hot-blast outlet of the thermal treatment zone of tower whole or at least major part be divided into two strands of hot-air flows, i.e. hot-air flow (1) and hot-air flow (2), such as both are according to 3-30:70-97 (preferred 5-20:80-95, more preferably 8-16:84-92) volume ratio or volume flow, wherein a blast of hot air air-flow (1) (such as 280-350 DEG C, preferred 290-330 DEG C, more preferably 300 DEG C-320 DEG C) be transported in the heat exchanger being in heating furnace upstream for preheating blast furnace gas or coke-stove gas, another gang of hot-air flow (2) (such as 280-350 DEG C, preferred 290-330 DEG C, more preferably 300 DEG C-320 DEG C) be transported to heating furnace afterbody equalizing section (or mixing, buffering area) in (usually there is 1100-1900 DEG C with the high-temperature hot-air (G0) escaping and enter this equalizing section from combustion chamber, preferred 1300-1600 DEG C) carry out mixing and being conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, as 430-440 DEG C), therefore the hot blast (G1) of mixing is formed, it generally has 400-500 DEG C of (preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, as 430-440 DEG C) temperature, this hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline.
Preferably, by cold wind G2 ' (the such as 90-120 DEG C of the analytically cooling air outlet discharge of the cooling zone of tower, about 100 DEG C) (namely, the cooling air of outer row) a part (such as 5-30vol%, as 7-20vol%, 8-15vol%, based on cumulative volume or the total flow of the cooling air of outer row.If calculated according to volume flow, be also the ratio of these number ranges) guide to the air inlet of combustion fan, the air inlet of the combustion chamber of heating furnace is sent into by combustion fan.
In general, it is at 390-500 DEG C that active carbon resolves (regeneration) temperature T1, and preferred 400-470 DEG C, more preferably 405-450 DEG C, more preferably at 410-440 DEG C, the more preferably scope of 410-430 DEG C, more preferably 415-420 DEG C of scope.
Analytic Tower of the present utility model is Analytic Tower in the dry desulfurization of exhaust-gas treatment for steel and iron industry, denitrification apparatus or regenerator, usually has the tower height of 15-45 rice, preferably 20-40 rice, more preferably 25-35 rice.Desorber has 6-100 rice 2, preferably 8-50 rice 2, more preferably 10-30 rice 2 usually, preferably the body cross-section of 15-20 rice 2 is amassed further.And (desulphurization and denitration) adsorption tower (or reaction tower) in desulfuring and denitrifying apparatus has larger size usually, the tower height of such as adsorption tower is 20-60, preferred 22-50, more preferably 25-45 rice.
According to second embodiment of the present utility model, provide the desulphurization and denitration method of sinter fume, the method comprises:
1) sinter fume or waste gas (or sintering device flue gas or waste gas) are transported in the activated carbon adsorber of a kind of desulphurization and denitration device comprising activated carbon adsorber and Analytic Tower, the active carbon inputted with the top from adsorption tower contacts, and the pollutant comprising oxysulfide, nitrogen oxide and dioxin is tightly held by activated carbon;
2) active carbon having adsorbed pollutant in the activated carbon adsorber of desulphurization and denitration device from sinter fume is transferred to the thermal treatment zone of a kind of active carbon Analytic Tower with the thermal treatment zone on top and the cooling zone of bottom from the bottom of adsorption tower;
3) when utilizing combustion fan to deliver air to the air inlet of the combustion chamber of heating furnace, blast furnace gas or coke-stove gas are transported in the combustion chamber of heating furnace and burn after flowing through a heat exchanger and being preheated, the high-temp waste gas of discharging from combustion chamber or high-temperature hot-air (G0) (such as have 1100-1900 DEG C, preferred 1300-1600 DEG C) equalizing section flowing through heating furnace afterbody (or is called mixing, buffering area) be conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, more preferably 420-430 DEG C) and become there is such as 400-500 DEG C (preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, more preferably 420-430 DEG C) hot blast (G1), hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline, hot blast G1 in the input thermal treatment zone carries out indirect heat exchange with the active carbon moved down in this thermal treatment zone and lowers the temperature, such as be cooled to 280-350 DEG C of (preferred 290-330 DEG C, 320 DEG C according to appointment), then the hot blast of having lowered the temperature (G1 ') (had 280-350 DEG C usually, preferred 290-330 DEG C, 320 DEG C according to appointment) to discharge from the hot-blast outlet of the thermal treatment zone that (the hot blast G1 ' of discharge is referred to as the hot blast of row " ", it generally has 280-350 DEG C, preferred 290-330 DEG C, 320 DEG C according to appointment),
4) in the thermal treatment zone of Analytic Tower, active carbon carries out indirect heat exchange with the hot blast (G1) as heated air and is heated or be warming up to regenerating active carbon temperature (or active carbon resolution temperature) T1, causes active carbon to carry out resolving, regenerating at this T1 temperature;
5) resolve in the thermal treatment zone on top, the active carbon of regeneration enters into the cooling zone of bottom via the buffering area of a centre, simultaneously by cooling blower using normal temperature air G2 (as cooling air or cooling-air) analytically the cold air inlet in tower cooler district be passed in the cooling zone of Analytic Tower, indirect heat exchange is carried out to cool active carbon with the active carbon moved down in cooling zone, analytically the cooling air outlet of the cooling zone of tower is discharged cooling air or cooling-air (G2 ') (it is had such as 90-120 DEG C, the temperature of 100 DEG C according to appointment) (cold wind of discharge is referred to as the cooling air of outer row), (wherein cooled active carbon is moved down into the Lower Hold of Analytic Tower from cooling zone), with
6) active carbon of cooling is transferred in the top of activated carbon adsorber of above step (1);
It is characterized in that: analytically the hot blast G1 ' that arranges outward of the hot-blast outlet of the thermal treatment zone of tower whole or at least major part be divided into two strands of hot-air flows, i.e. hot-air flow (1) and hot-air flow (2), such as both are according to 3-30:70-97 (preferred 5-20:80-95, more preferably 8-16:84-92) volume ratio or volume flow, wherein a blast of hot air air-flow (1) (such as 280-350 DEG C, preferred 290-330 DEG C, more preferably 300 DEG C-320 DEG C) be transported in the heat exchanger being in heating furnace upstream for preheating blast furnace gas or coke-stove gas, another gang of hot-air flow (2) (such as 280-350 DEG C, preferred 290-330 DEG C, more preferably 300 DEG C-320 DEG C) be transported in the equalizing section of heating furnace afterbody and (usually there is 1100-1900 DEG C with the high-temperature hot-air (G0) escaping and enter this equalizing section from combustion chamber, preferred 1300-1600 DEG C) carry out mixing and being conditioned temperature (such as to 400-500 DEG C, preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, as 430-440 DEG C), therefore the hot blast (G1) of mixing is formed, it generally has 400-500 DEG C of (preferred 410-480 DEG C, more preferably 415-470 DEG C, more preferably 420-460 DEG C, preferred 420-450 DEG C further, as 430-440 DEG C) temperature, this hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline.
Preferably, by cold wind the G2 ' (90-120 DEG C of the analytically cooling air outlet discharge of the cooling zone of tower, 100 DEG C according to appointment) (namely, the cooling air of outer row) a part (such as 5-30vol%, as 7-20vol%, 8-15vol%) guide to the air inlet of combustion fan, sent into the air inlet of the combustion chamber of heating furnace by combustion fan.
In general, it is at 390-500 DEG C that active carbon resolves (regeneration) temperature T1, and preferred 400-470 DEG C, more preferably 405-450 DEG C, more preferably at 410-440 DEG C, the more preferably scope of 410-430 DEG C, more preferably 415-420 DEG C of scope.
According to the 3rd embodiment of the present utility model, provide a kind of and comprise the thermal analysis apparatus of the active carbon of UTILIZATION OF VESIDUAL HEAT IN or for the thermal analysis apparatus comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN in said method, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is via the air inlet of pipeline connection to the combustion chamber of heating furnace (6);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), its front end is connected to gaspipe line or coal gas basin (7), and its rear end is connected to the fuel inlet of the combustion chamber of heating furnace (6).
Preferably, said apparatus comprises further: the 7th pipeline (L7) separated from the leading portion of the second pipeline (L2).7th pipeline (L7) is for outer thermal wind exhausting (9).
According to the 4th embodiment of the present utility model, provide a kind of and comprise the thermal analysis apparatus of the active carbon of UTILIZATION OF VESIDUAL HEAT IN or for the thermal analysis apparatus comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN in said method, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
According to the 5th embodiment of the present utility model, provide a kind of and comprise the thermal analysis apparatus of the active carbon of UTILIZATION OF VESIDUAL HEAT IN or for the thermal analysis apparatus comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN in said method, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
For design and the absorbing process thereof of flue gas (or waste gas) adsorption tower, a lot of document has been had to disclose in prior art, see such as US5932179, JP2004209332A, with JP3581090B2 (JP2002095930A) and JP3351658B2 (JPH08332347A), JP2005313035A.The application is no longer described in detail.
In the utility model, for the not special requirement of Analytic Tower, the Analytic Tower of prior art all can be used in the utility model.Preferably, Analytic Tower is the vertical Analytic Tower of shell pipe type, wherein active carbon inputs from tower top, flow through tube side downwards, then arrive at the bottom of tower, heated air then flows through shell side, and heated air enters from the side of tower, carry out heat exchange with the active carbon flowing through tube side and lower the temperature, then exporting from the opposite side of tower.In the utility model, for the not special requirement of Analytic Tower, the Analytic Tower of prior art all can be used in the utility model.Preferably, Analytic Tower is the vertical Analytic Tower of shell pipe type (or package type), wherein active carbon inputs from tower top, flow through the tube side of the thermal treatment zone, top downwards, then a cushion space be between the thermal treatment zone, top and cooling zone, bottom is arrived, then the tube side of cooling zone, bottom is flowed through, then arrive at the bottom of tower, heated air (or high-temperature hot-air) then flows through the shell side of the thermal treatment zone, the side of heated air (400-500 DEG C) the analytically thermal treatment zone of tower enters, carry out indirect heat exchange with the active carbon flowing through thermal treatment zone tube side and lower the temperature, then export from the opposite side of the thermal treatment zone of tower.The side of the cooling air analytically cooling zone of tower enters, and carries out indirect heat exchange with the active carbon of resolving, regenerating flowing through cooling zone tube side.After the indirect heat exchange, cooling air is warming up to 90-130 DEG C (according to appointment 100 DEG C).
For design and the regeneration method of active carbon of active carbon Analytic Tower, a lot of document has been had to disclose in prior art, JP3217627B2 (JPH08155299A) discloses a kind of Analytic Tower (i.e. desorber), it adopts double seal valve, logical noble gas sealing, screening, water-cooled (Fig. 3 see in this patent).JP3485453B2 (JPH11104457A) discloses regenerator (see Figure 23 and 24), can adopt preheating section, double seal valve, logical noble gas, Air flow or water-cooled.JPS59142824A discloses gas from cooling section for preheating active carbon.Chinese patent application 201210050541.6 (Shanghai Ke Liu company) discloses the scheme of the energy recycling of regenerator, which uses drier 2.JPS4918355B discloses and adopts blast furnace gas (blast furnace gas) to carry out regenerated carbon.JPH08323144A discloses the regenerator adopting fuel (heavy oil or light oil), uses air-heating furnace (see Fig. 2 of this patent, 11-hot-blast stove, 12-fuel supply system).China's utility model 201320075942.7 relates to heater and possesses the emission-control equipment of this heater (coal-fired, air heat), see the Fig. 2 in this utility model patent.
Analytic Tower of the present utility model adopts air-cooled.
For the situation that Analytic Tower analytic ability is 10t active carbon per hour, traditional handicraft keeps the temperature coke-stove gas needed for 420 DEG C in Analytic Tower to be about 400Nm
3/ h, combustion air is about 2200Nm
3/ h, outer thermal wind exhausting is about 2500Nm
3/ h; Required cooling-air 30000Nm
3/ h, after cooling, active carbon temperature is 140 DEG C.
" optional " expression is in this application with or without.Analytic Tower and regenerator are used interchangeably.Regeneration and parsing are used interchangeably.In addition, resolving with desorb is identical concept.
Advantage of the present utility model or Advantageous Effects
The utility model utilizes indirect heat exchanger by outer thermal wind exhausting (temperature is about 300 DEG C) completely for preheating blast furnace gas or coke-stove gas (as shown in Figure 3), and gas saving 6-7%, as 6.5%.
In addition, combustion fan is utilized to extract the cooling-air 2200Nm of the outer row of a part
3/ h (temperature is about 100 DEG C) as combustion air (as shown in Figure 4), altogether gas saving 12-13%, as 12.5%.
By by blast furnace gas or coke-stove gas preheating, make coal gas more Thorough combustion, significantly improve efficiency of combustion.
Large-scale active carbon for steel industry view resolves technique, and above-mentioned energy-saving effect is very significant.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the active carbon Analytic Tower of prior art.
Fig. 2 is the active carbon process of analysis schematic diagram of a part as the air intake of combustion fan arranging cooling air according to utilization of the present utility model outward.
Fig. 3 is the active carbon process of analysis schematic diagram coming preheating blast furnace gas or coke-stove gas according to a part for the outer thermal wind exhausting of utilization of the present utility model.
Fig. 4 is that a part of arranging cooling air outward according to utilization of the present utility model is as the air intake of combustion fan and utilize a part for outer thermal wind exhausting to carry out the active carbon process of analysis schematic diagram of preheating blast furnace gas or coke-stove gas.
Reference numeral: 1, Analytic Tower, 2, the thermal treatment zone, 3, cooling zone, 4, hot air circulation blower, 5, combustion fan, 6, heating furnace, 7, the pipeline of blast furnace gas or coke-stove gas or basin, 8, cooling blower, 9, outer thermal wind exhausting, 10, outer row's cooling air, 11, heat exchanger, 12, air stream, 13, active carbon to be regenerated, 14, the active carbon of regeneration; L1-L8, gas piping.
Fig. 5 is the schematic diagram comprising the desulfuring and denitrifying apparatus of adsorption tower and Analytic Tower of the present invention.
Wherein 20: reaction tower (i.e. adsorption tower); 201: active carbon bed; 202: former flue gas; 203: neat stress; 204: active carbon entrance; 205: active carbon exports; 206: ammonia; 207: ammonia valve; 30: active carbon feed bin; 40: vibratory sieve; 401: dust; 501,502: active carbon conveying mechanism; A: inlet plenum; B: discharge chamber.
Fig. 6 is the multistage spray another kind of reaction tower of ammonia or the schematic diagram of adsorption tower (20) with three active carbon beds (201a, 201b, 201c) of the present invention.
Wherein, 20: reaction tower (i.e. adsorption tower); 201a, 201b, 201c: active carbon bed; 202: former flue gas; 203: neat stress; 204: active carbon entrance; 204a: active carbon material feeding valve; 205: active carbon exports; 205b: active carbon blowdown valve; 206: ammonia; 206a: air or hot-air; 207: ammonia valve (V1, V2, V3); 208: spray ammonia pipe array; A: inlet plenum; B: discharge chamber.
Fig. 7 is that each tower of the present invention has the another kind of reaction tower of the double tower type of 5 active carbon beds (a, b, c, d, e) or the schematic diagram of adsorption tower (20) (i.e. multitower many beds type) separately.
Fig. 8 is the schematic diagram of another kind of multitower many beds type reaction tower of the present invention or adsorption tower (20).Wherein the tower body of activated carbon adsorber has the multiple field chamber structure (many beds) be parallel to each other in vertical direction, that is, discharge chamber B on the right side of left side discharge chamber B-bed c-bed b-bed a-A inlet plenum-bed a-bed b-bed c-.
Fig. 9 is the air inlet of reaction tower (or adsorption tower) and gas outlet at the design diagram (top view) of not homonymy.
Figure 10 is air inlet and the gas outlet design diagram (top view) in the same side of reaction tower (or adsorption tower).
Detailed description of the invention
Desulphurization and denitration device used in an embodiment comprises activated carbon adsorber and Analytic Tower.The intermediate buffer that active carbon Analytic Tower has the thermal treatment zone on top and the cooling zone of bottom and is positioned between the two.
Sinter fume to be processed is needed to be sintering device flue gas from steel and iron industry in embodiment.
In an embodiment, Analytic Tower is of a size of: tower height 20 meters, body cross-section is amassed as 15m
2.
See Fig. 2-4, the active carbon resolver used in an embodiment is as described below:
A kind of active carbon resolver, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is via the air inlet of pipeline connection to the combustion chamber of heating furnace (6);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), its front end is connected to gaspipe line or coal gas basin (7), and its rear end is connected to the fuel inlet of the combustion chamber of heating furnace (6).
Preferably, said apparatus comprises further: the 7th pipeline (L7) separated from the leading portion of the second pipeline (L2).7th pipeline (L7) is for outer thermal wind exhausting (9).
Comprise a thermal analysis apparatus for the active carbon of UTILIZATION OF VESIDUAL HEAT IN, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
In addition, can use a kind of thermal analysis apparatus comprising the active carbon of UTILIZATION OF VESIDUAL HEAT IN, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section (i.e. mixed zone or heat transfer zone) of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
Embodiment 1
As shown in Figure 5, desulphurization and denitration device comprises activated carbon adsorber (20) (tower height 30 meters, cross-sectional area 120m
2) and Analytic Tower (as shown in Figure 2, tower height 20 meters, cross-sectional area 15m
2).The tower body of activated carbon adsorber has the multiple field chamber structure be parallel to each other in vertical direction, namely, left side discharge chamber B ← denitration chamber c ← desulphurization and denitration room b ← desulfurization chamber a ← inlet plenum A → desulfurization chamber a → desulphurization and denitration room b → denitration chamber c → right side discharge chamber B, wherein flue gas inlet plenum A from the inside essentially horizontally flows (to B discharge chamber) outward along left and right direction.In order to draw conveniently, single tower reaction tower depicted as by the reaction tower (or adsorption tower) in Fig. 5, but in fact replaced the adsorption tower in Fig. 5 by the reaction tower (or adsorption tower) of Fig. 8 in the present embodiment 1.
Analytic Tower (1) has the thermal treatment zone (2) on top and the cooling zone (3) of bottom.
1) active carbon having adsorbed the pollutant comprising oxysulfide, nitrogen oxide and dioxin in the activated carbon adsorber of desulphurization and denitration device from sinter fume is transferred to the thermal treatment zone (2) of active carbon Analytic Tower (1) from the bottom of adsorption tower;
2) when utilizing combustion fan (5) to deliver air to the air inlet of the combustion chamber of heating furnace (6), coke-stove gas (7) is transported in the combustion chamber of heating furnace (6) and burns after flowing through a heat exchanger (11) and being preheated, the high-temp waste gas of discharging from combustion chamber or high-temperature hot-air (G0) (about 1900 DEG C) flow through heating furnace afterbody an equalizing section (or mixing, buffering area) be conditioned temperature and become the hot blast (G1) with 415-420 DEG C to 415-420 DEG C, hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone of Analytic Tower via pipeline, hot blast G1 in the input thermal treatment zone carries out indirect heat exchange with the active carbon moved down in this thermal treatment zone and lowers the temperature, such as be cooled to about 300 DEG C, then the hot blast of having lowered the temperature (G1 ') (about 300 DEG C) are discharged (hot blast of row " " from the hot-blast outlet of the thermal treatment zone, about 300 DEG C),
3) in the thermal treatment zone (2) of Analytic Tower, active carbon is heated or is warming up to the regenerating active carbon temperature (or active carbon resolution temperature) of 400 DEG C with carrying out indirect heat exchange as the hot blast (G1) of heated air, causes active carbon to carry out at such a temperature resolving, regenerating; With
4) resolve in the thermal treatment zone (2) on top, the active carbon of regeneration enters into the cooling zone (3) of bottom via the buffering area of a centre, simultaneously by cooling blower (8), the cold air inlet in normal temperature air G2 analytically tower cooler district is passed in the cooling zone (3) of Analytic Tower, indirect heat exchange is carried out to cool active carbon with the active carbon moved down in cooling zone (3), analytically the cooling air outlet of the cooling zone of tower discharges cooling air or cooling-air (G2 ') (temperature of about 100 DEG C) (" cooling air of outer row "), wherein cooled active carbon (about 120-140 DEG C) is moved down into the Lower Hold of Analytic Tower from cooling zone,
Wherein: the whole of hot blast G1 ' that analytically hot-blast outlet of the thermal treatment zone of tower is arranged outward are divided into two strands of hot-air flows, i.e. hot-air flow (1) and hot-air flow (2), both are according to the volume ratio of 15:85 or volume flow, wherein a blast of hot air air-flow (1) (about 300 DEG C) (accounting for whole outer thermal wind exhausting volumes or the 15vol% of flow) is transported in the heat exchanger (11) being in heating furnace (6) upstream for preheating coke-stove gas, another burst of hot-air flow (2) (about 300 DEG C) is transported to equalizing section (or the mixing of heating furnace (6) afterbody, buffering area) in carry out mixing with the high-temperature hot-air (G0) (about 1900 DEG C) escaping and enter this equalizing section from combustion chamber and be conditioned temperature to 415-420 DEG C, therefore the hot blast (G1) of mixture is formed, this hot blast (G1) is transported to the hot-wind inlet of the thermal treatment zone (2) of Analytic Tower via pipeline.
Embodiment 2
Repeat embodiment 1, just in addition also by a part (the about 8vol% of the cold wind G2 ' (about 100 DEG C) (" cooling air of outer row ") of the analytically cooling air outlet discharge of the cooling zone of tower, based on flow or volume) guide to the air inlet of combustion fan, the air inlet of the combustion chamber of heating furnace is sent into by combustion fan.
Comparative example 1
Repeat embodiment 1, but there is no preheater, namely in step 2) in coke-stove gas without heat exchanger preheating, but be directly transported in the combustion chamber of heating furnace and burn, therefore, also a part for outer thermal wind exhausting is not transported in heat exchanger.A part for outer thermal wind exhausting is discharged, and another part is transported in the equalizing section of heating furnace afterbody and mixes with the high-temperature hot-air (about 1900 DEG C) escaping and enter this equalizing section from combustion chamber.
Table 1-Comparative result
As can be seen from Table 1, in embodiment 1, utilize indirect heat exchanger that a part for outer thermal wind exhausting (temperature is about 300 DEG C) is used for preheating blast furnace gas (as shown in Figure 3), now keep the temperature coke-stove gas needed for 420 DEG C in Analytic Tower to be about 374Nm
3/ h, saves coke-stove gas 6.5%.In preferred embodiment 2, combustion fan is utilized to extract the cooling-air 2200Nm of outer row further
3/ h (temperature is about 100 DEG C), as combustion air (as shown in Figure 4), now keeps the temperature coke-stove gas needed for 420 DEG C in Analytic Tower to be about 350Nm
3/ h, saves coke-stove gas 12.5% altogether.
Claims (4)
1. comprise a thermal analysis apparatus for the active carbon of UTILIZATION OF VESIDUAL HEAT IN, it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is via the air inlet of pipeline connection to the combustion chamber of heating furnace (6);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), its front end is connected to gaspipe line or coal gas basin (7), and its rear end is connected to the fuel inlet of the combustion chamber of heating furnace (6).
2. device according to claim 1, is characterized in that said apparatus comprises further: the 7th pipeline (L7) separated from the leading portion of the second pipeline (L2), and the latter is used for outer thermal wind exhausting (9).
3. comprise a thermal analysis apparatus for the active carbon of UTILIZATION OF VESIDUAL HEAT IN, it is characterized in that it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
4. comprise a thermal analysis apparatus for the active carbon of UTILIZATION OF VESIDUAL HEAT IN, it is characterized in that it comprises:
Active carbon Analytic Tower (1), this Analytic Tower (1) has: the thermal treatment zone (2) on top and the cooling zone (3) of bottom, be positioned at tower top for inputting the import of active carbon to be regenerated and being positioned at the outlet of active carbon of the output regeneration at the bottom of tower;
Be positioned at the heating furnace (6) of the gas circuit upstream of Analytic Tower (1);
Be positioned at the hot air circulation blower (4) of the gas circuit upstream of heating furnace (6);
Combustion fan (5), its air outlet is communicated to the air inlet of the combustion chamber of heating furnace (6) via pipeline (L5);
For first pipeline (L1) of the thermal treatment zone (2) input heated air, its front end is connected to the heated air import that the tail end air outlet of heating furnace (6) and its end are connected to the thermal treatment zone (2);
Carry second pipeline (L2) of outer thermal wind exhausting, wherein between hot air circulation blower (4) leading portion that is positioned at the second pipeline (L2) and back segment, and the front end of the leading portion of this second pipeline (L2) is connected to the heated air outlet of the thermal treatment zone (2), and the rear end of the back segment of the second pipeline (L2) is connected to the equalizing section of heating furnace (6) afterbody;
For the cooling blower (8) of cooling zone (3) input normal temperature air, the air outlet of this blower fan is connected to the cooling air import of cooling zone (3) via the 3rd pipeline (L3);
For from the 4th pipeline (L4) of discharging cooling air in cooling zone (3), its front end of (L4) is connected to the air outlet of cooling zone (3);
From branch road i.e. the 7th pipeline (L7) that the leading portion of the second pipeline (L2) separates, its rear end of (L7) is connected to the import of the hot-air channel of heat exchanger (11);
For the 8th pipeline (L8) of outer thermal wind exhausting (9), its one end of (L8) is connected to the outlet of the hot-air channel of heat exchanger (11);
From a branch road i.e. the 5th pipeline (L5) that the 4th pipeline (L4) separates, its rear end of (L5) is connected to the air inlet of combustion fan (5); With
Gas conveying tube road (L6), wherein between heat exchanger (11) leading portion that is positioned at pipeline (L6) and back segment, the front end of the leading portion of pipeline (L6) is connected to gaspipe line or coal gas basin (7), and the rear end of the back segment of pipeline (L6) is connected to the fuel inlet of the combustion chamber of heating furnace (6).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190388A (en) * | 2014-08-27 | 2014-12-10 | 中冶长天国际工程有限责任公司 | Activated carbon thermal desorption method and device capable of utilizing afterheat |
| CN108619850A (en) * | 2018-04-08 | 2018-10-09 | 中冶长天国际工程有限责任公司 | The recycle device of powdered carbon |
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2014
- 2014-08-27 CN CN201420487725.3U patent/CN204193958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190388A (en) * | 2014-08-27 | 2014-12-10 | 中冶长天国际工程有限责任公司 | Activated carbon thermal desorption method and device capable of utilizing afterheat |
| CN108619850A (en) * | 2018-04-08 | 2018-10-09 | 中冶长天国际工程有限责任公司 | The recycle device of powdered carbon |
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