CN102580705A - Comprehensive heat energy utilizing type active coke purifying and regenerating process system and active coke purifying and regenerating process method - Google Patents
Comprehensive heat energy utilizing type active coke purifying and regenerating process system and active coke purifying and regenerating process method Download PDFInfo
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- CN102580705A CN102580705A CN2012100505416A CN201210050541A CN102580705A CN 102580705 A CN102580705 A CN 102580705A CN 2012100505416 A CN2012100505416 A CN 2012100505416A CN 201210050541 A CN201210050541 A CN 201210050541A CN 102580705 A CN102580705 A CN 102580705A
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Abstract
The invention discloses a comprehensive heat energy utilizing type active coke purifying and regenerating process system and an active coke purifying and generating process method. The process system comprises a regenerating device, a preheating device, a heating device and a heat exchanging device, wherein the regenerating device comprises a regenerating tower; the preheating device comprises a drying tower; the heating device comprises a hot-blast stove and a first fan; and the heat exchanging device comprises a second fan, a normal-temperature air input pipeline and a hot air output pipeline, wherein the second fan is used for sending the hot air after heat exchange to the drying tower so as to preheat the active coke. The method comprises the following steps: (1) preheating: preheating the active coke in the drying tower; (b) heating: heating the active coke due to the action of a high-temperature heat-conducting medium; (c) regenerating; and (d) cooling: cooling the regenerated active coke entering a cooling section. The system and method disclosed by the invention are suitable for restoring and regenerating the active coke.
Description
Technical field
The present invention relates to environmental technology field, relate in particular to a kind of treatment system and processing method of the activated coke (activated carbon) that is used for desulphurization denitration being carried out purifying regeneration.
Background technology
The flue gas desulfurization and denitrification technology belongs to dry type absorption method technology to activated coke (or claiming activated carbon), is to remove agent with active Jiaozhuo that coal is processed, under the activated coke catalytic action, and SO
2And O
2And H
2O reacts, at last with H
2SO
4Form in occupation of the activated centre, causes activated coke to SO attached in the activated coke hole
2Adsorption capacity weaken gradually; Simultaneously, NO and O
2And NH
3Reaction generates N
2, NO
2With NH
3Reaction generates N
2Thereby, reach and remove SO in the flue gas
2Purpose with NOx.Activated coke is the critical material that influences desulphurization denitration performance and efficient, in the desulphurization denitration purifier, and the activated coke that adsorption capacity descends; Must regenerate to it; Make the ammonium sulfate thermal decomposition that removes in the agent, carry out the thermal decomposition of sulfuric acid simultaneously, come into operation again after the restorability.
The moving bed thermal regeneration method that generally adopts at present, regeneration temperature is about 400 ℃ and keep a period of time, under heating state, the H that activated coke is adsorbed
2SO
4Be reduced to SO with C (activated coke) reaction
2, the ammonium sulfate decomposes becomes nitrogen, water, sulfur dioxide simultaneously, and activated coke is recovered absorption property, can be recycled.The thermal regeneration reaction of activated coke is equivalent to activated coke is carried out activation once more.
Patent No. ZL 02112580.5; Granted publication CN 1132677C, name is called the Chinese invention patent of moving desorptive equipment for activated coke, and moving desorptive equipment for activated coke is a kind of device that the activated coke of adsorbing sulfur dioxide is regenerated and restored; This device is linked to each other in proper order by import warehouse, imported valve, import transitional storehouse, heating cabinet, reaction warehouse, cooling storehouse, outlet transitional storehouse, outlet valve from top to bottom and forms; Between the outer wall of outlet transitional storehouse above each several part, be equipped with heat-barrier material the outer wall of upper and lower each several part is isolated from each other, in heating cabinet; Be provided with the heat exchanger of heating; Be provided with cooling heat exchanger in cooling in the storehouse, be communicated with by heater between the top of heat heat exchanger bottom and cooling heat exchanger, be communicated with by circulating pump between the top of the heat exchanger of heating and the bottom of cooling heat exchanger; In reaction warehouse and the top of heating cabinet be equipped with blast pipe, this blast pipe links to each other with aspiration pump.In fact anatomize and to know that regenerating unit mainly is divided into bringing-up section, conversion zone and cooling section.Wherein, bringing-up section and cooling section are equipped with pipe heat exchanger, and heating/refrigerating gas carries out heat exchange through tube wall and activated coke, and cooling section outlet high-temperature gas is sent into bringing-up section heating activated coke after the electric heater heating, and it is temperature required to make it reach regeneration; The bringing-up section exit gas imports cooling section inlet cooling activated coke through circulating pump.Conduct heat through tube wall, activated coke is regenerated at conversion zone, and the gas of the sulfur dioxide that contains high concentration that bears is again extracted out through the regeneration blower fan.This device bringing-up section is used for the cooling of cooling section activated coke by the cooled gas of activated coke; Gas through the heating of cooling section activated coke is admitted to electric heater continuation heating; Heating back gas is sent into bringing-up section heating activated coke, and the energy that the required external world of bringing-up section provides is more, and capacity usage ratio is low.
Number of patent application 200910250891.5; Application publication number CN 101732948A; Name is called syllogic activated coke gas cleaning regeneration integrated processing system and method, and the cooling medium input channel of its cooler directly is connected with external refrigeration medium input equipment, and the preheating medium input channel of the cooling medium output channel of cooler and preheater is directly passed through pipeline connection; The heat conduction efficiency is low, and operating safety factor is low.
Summary of the invention
Energy to the required external world of bringing-up section in the existing activated coke regenerating unit provides is more; The problem that capacity usage ratio is low; The purpose of this invention is to provide and a kind ofly can heat, make full use of simultaneously a kind of heat exchange type activated coke purifying regeneration treatment system of cooling section heat and the processing method of economical operation safety again the preheating of activated coke elder generation; Bringing-up section is an independently heating systems, simultaneously the energy of the portion of energy of bringing-up section and cooling section is incorporated into preheating section and utilizes once more, thereby effectively solve the low problem of energy utilization rate in the prior art; Realized effective utilization of energy, not only energy-conservation but also reduce cost.
The technical solution adopted for the present invention to solve the technical problems is: said treatment system comprises regenerating unit, preheating device, heater and heat-exchanger rig; Said regenerating unit comprises a regenerator, and said regenerator is divided into bringing-up section, regenerator section and cooling section from top to bottom successively; Said preheating device comprises a drying tower, and said drying tower is arranged on the top of said regenerator and is communicated with said regenerator through pipeline, and heat-conducting medium directly contacts with activated coke activated coke is carried out preheating in the said drying tower; Said heater comprises a hot-blast stove, first blower fan, and said hot-blast stove, first blower fan are connected to form the heat-conducting medium circulation line through pipeline and said regenerator, is used for the activated coke of said regenerator bringing-up section is heated; Also be connected with a heat-conducting medium output pipe on the said heat-conducting medium circulation line, said heat-conducting medium output pipe is connected to the activated coke that is used on the said drying tower drying tower and carries out preheating; Said heat-exchanger rig comprises second blower fan, a normal temperature air intake line, a hot-air output pipe; Said normal temperature air intake line and said hot-air output pipe are connected on the said regenerator; Said second blower fan (15) is arranged on the said normal temperature air intake line (A) or on the said hot-air output pipe (B), is used for that the hot-air after the heat exchange is sent into said drying tower activated coke is carried out preheating.
Patent device is carried out refinement to the flow process of whole activated coke regeneration; Be divided into preheating, heating, regeneration, cooling; The heat of cooling stage and heating period is offered warm-up phase activated coke is carried out preheating; At warm-up phase, activated coke directly contacts the acquisition heat with hot-air and thermal conductance thermal medium, makes bringing-up section, preheating section and the cooling section of activated coke intersect to form a system that can control each other and influence each other; Activated coke after the preheating has had certain temperature like this, can be heated to regeneration temperature faster in bringing-up section.While can control the heat exchange blower fan of bringing-up section and the leaving air temp of heater is controlled the efficiency of heating surface.Same regenerator section also can come further to influence the regeneration efficiency of regenerator section through the efficiency of heating surface of control bringing-up section.This patent adopts a part of heat with the heat of cooling section and bringing-up section to offer preheating section together to carry out preheating, and the controllability of whole system, controllability are stronger like this.Adopt hot-blast stove that thermal source is provided, the consumption of fuel is approximately than reducing about half with steam-type or other indirect heaters, more energy savings.First valve the temperature that can regulate mixing chamber internal combustion gas is set.In this patent; Second blower fan is mainly used in the traction air and flow to the regenerator cooling section from the normal temperature air intake line and flow to the hot-air output pipe again; From drying tower, discharge then; Therefore, second blower fan can be installed on the normal temperature air intake line and also can be installed on the hot-air output pipe.
Further preferably, said hot-blast stove is divided into combustion chamber and mixing chamber, and said mixing chamber is communicated with said first blower fan and said regenerator bringing-up section respectively, and the pipeline between said first blower fan and the mixing chamber is provided with first valve.The setting of first valve not only can be regulated the temperature of mixing chamber internal combustion gas, can also regulate the temperature of activated coke in the drying tower, because the too high sulfur dioxide gas that has of temperature in the drying tower.Because the heat part of drying tower comes from cooling section, another part comes from hot-blast stove, through regulate first valve and with the match temperature of activated coke in the temperature that just can effectively control the mixing indoor gas and the drying tower of second valve.
Further preferably; Air-in one end of said normal temperature air intake line is provided with the 4th valve of control normal temperature air flow; Also be connected with one on the said hot-air output pipe and be used for hot air reflow mixed pipe line that the portion of hot air is mixed with normal temperature air, said hot air reflow mixed pipe line is connected on the normal temperature air intake line.Also be provided with second valve on the said heat-conducting medium output pipe.The hot-air part of second blower fan outlet is sent into drying tower by the hot-air output pipe and is used to heat the activated coke from desulfurizing tower, improves the utilization rate of heat; Another part hot-air of second blower fan outlet mixes with normal temperature air in the normal temperature air intake line through the hot air reflow mixed pipe line activated coke is cooled off; Aperture control intake air temperature through the 3rd valve and the 4th valve reduces corrosion of piping and protects regenerator.
Be connected through at least one import discharger between said drying tower and the said regenerator, said import discharger is star baiting valve or butterfly baiting valve, and the connecting line of said import discharger is provided with atmospheric valve.The top of said drying tower is connected with a charging discharger, and the tail end of said regenerator cooling section is connected with an outlet discharger, and said outlet discharger is star baiting valve or butterfly baiting valve.
In addition, the present invention also provides a kind of processing method of activated coke purifying regeneration, and it comprises the steps:
(a) activated coke preheating: activated coke gets in the said drying tower, and the hot-air of being seen off by said hot-air output pipe directly contacts with activated coke with the high temperature heat conducting medium that said heat-conducting medium output pipe is seen off and carries out preheating;
(b) activated coke heating: said activated coke progressively heats up under the high temperature heat conducting medium effect that said heater is seen off in the regenerator bringing-up section;
(c) activated coke regeneration: said activated coke is reproduced in regenerator regenerator section, and that bears is rich in SO again
2Gas is reproduced blower fan and takes away;
(d) activated coke cooling: the activated coke after the regeneration gets into said regenerator cooling section and cools off, and cooled activated coke recycles after discharging treatment system, accomplishes regenerative operation.
Heat-conducting medium is an air burning gas in the cyclic process of regenerator bringing-up section, promptly is mainly nitrogen and carbon dioxide mix gas, and safety coefficient is high.Activated coke is heated to 300 ℃～450 ℃ in the regenerator bringing-up section.
In this method, activated coke heating, regeneration phase are independently cooled off and the recycling of warm-up phase energy, the regeneration reducing sufficient reacting, and regeneration efficiency is high.
Beneficial effect of the present invention:
One, the activated coke regeneration efficiency is high: in the regenerating unit of the present invention; Activated coke enters into regenerator after by preheating and heats, and bringing-up section can come the independent control efficiency of heating surface, heating-up temperature through the valve opening of regulating hot-blast stove and heat-conducting medium, and heated air from bottom to top flows; Carry out thermal energy exchange with the activated coke that moves from top to down; Heated air from bottom to top temperature progressively reduces, and activated coke is in moving process from top to bottom, and its temperature progressively raises; Make the activated coke temperature that gets into regenerator regenerator section reach the regeneration requirement, regeneration efficiency is high.
Two, energy fully reclaims: in heat-exchanger rig; Normal temperature air is delivered to regenerator cooling section cooling activated coke by the road; Hot-air part after the heat exchange is sent into drying tower by the hot-air output pipe and is used to heat the activated coke from desulfurizing tower, improves the utilization rate of heat; Another part hot-air mixes with normal temperature air in the normal temperature air intake line activated coke is cooled off, and the aperture control intake air temperature through valve reduces corrosion of piping and also protects regenerator.Simultaneously, in heater, the part high-temp combustion gas of being seen off by the regenerator bringing-up section is transported to drying tower and also directly contacts with activated coke activated coke is carried out preheating, has strengthened the recycling of heat energy in the system.
Three, adopt hot-blast stove that thermal source is provided among the present invention in the heater; The consumption of its fuel is approximately than reducing about half with steam or other indirect heaters; And fuel can adopt solid, gas, liquid etc., and range of choice is wider, and the heating thermal source is versatile and flexible, simple to operate.
Four, separately member is routine, mature equipment in the circulation process of regenerator bringing-up section of the present invention, cooling section, and it is simple to operate, and control easily, and is easy to maintenance.
Five, the whole system flow process is simple, is easy to control appliance through control valve, does not use Large-Scale Equipments such as heat exchanger, and occupation area of equipment is little, and has reduced production cost.
Six, in the processing method of the present invention, activated coke and heat-conducting medium carry out heat exchange, and thermal energy transfer efficient is high, activated coke regeneration reducing sufficient reacting, and regeneration efficiency is high; The partial heat energy of heat-exchanger rig and heater all is delivered in the drying tower through pipeline activated coke is carried out preheating, has improved the recycling efficient of heat energy in the system.
Description of drawings
Fig. 1 is the entire system structural representation of embodiments of the invention 1;
Fig. 2 is the entire system structural representation of embodiments of the invention 2;
The drawing reference numeral explanation:
1-charging discharger 2-drying tower 3-import discharger 4-regenerator
The 5-first blower fan 6-first valve 7-second valve 8-hot-blast stove
9-air 10-fuel 11-bringing-up section 12-regenerator section 13-cooling section
The 14-outlet discharger 15-second blower fan 16-the 3rd valve 17-the 4th valve
A-normal temperature air intake line B-hot-air output pipe C-hot air reflow mixed pipe line
D-heat-conducting medium circulation line E-heat-conducting medium output pipe
A-combustion chamber b-mixing chamber
The specific embodiment
Combine accompanying drawing and embodiment that the present invention is done further explain at present.
Embodiment 1:
In conjunction with Fig. 1 the heat integration type activated coke purifying regeneration treatment system of present embodiment is described, said treatment system comprises regenerating unit, preheating device, heater and heat-exchanger rig; Regenerating unit comprises a regenerator 4, and regenerator 4 is divided into bringing-up section 11, regenerator section 12 and cooling section 13 from top to bottom successively; Preheating device comprises a drying tower 2, and drying tower 2 is arranged on the top of regenerator 4 and is communicated with regenerator 4 through pipeline; Heater comprises a hot-blast stove 8, first blower fan 5, and the hot-blast stove 8 and first blower fan 5 are connected to form heat-conducting medium circulation line D through pipeline and regenerator 4, are used for the activated coke of regenerator bringing-up section 11 is heated; Also be connected with a heat-conducting medium output pipe E on the heat-conducting medium circulation line D, heat-conducting medium output pipe E is connected to the activated coke that is used on the drying tower 2 drying tower 2 and carries out preheating; Heat-exchanger rig comprises second blower fan 15, a normal temperature air intake line A, a hot-air output pipe B; Normal temperature air intake line A and hot-air output pipe B are connected on the regenerator 4; Second blower fan 15 is arranged on the hot-air output pipe B, is used for that the hot-air after the heat exchange is sent into drying tower 2 activated coke is carried out preheating.Certainly, second blower fan 15 also can be arranged on the normal temperature air intake line A in the present embodiment, and it is the same that effect is actually.
In regenerator bringing-up section 11; Activated coke and heat-conducting medium carry out heat exchange, and the mode of heat exchange can be passed through the pipe heat exchanger conduct energy, also can directly contact exchange; But consider the handling problem of security and heat-conducting medium, preferably carry out heat exchange through pipe heat exchanger.The pipe heat exchanger heat exchange is a routine techniques; Adopt the mode of pipe type heat transfer to describe in detail in the applicant's's disclosed " 02112580.5 of patent No. ZL is called moving desorptive equipment for activated coke " the Chinese invention patent, repeat no more at this to activated coke heating, cooling.At regenerator cooling section 13, utilize air that the activated coke after regenerating is cooled off, the hot-air that has absorbed the activated coke heat gets in the drying tower 2 through hot-air output pipe B activated coke is carried out preheating.
Wherein, hot-blast stove 8 is divided into combustion chamber a and mixing chamber b, a air 9 and fuel 10 abundant catalytic combustions in the combustion chamber, and fuel 10 can adopt solid, gas, liquid etc.High temperature heat conducting medium after the burning gets among the mixing chamber b; The end of mixing chamber b is communicated with regenerator bringing-up section 11; The other end of mixing chamber b is communicated with regenerator bringing-up section 11 through first valve 6 and first blower fan 5, is used for the activated coke of regenerator bringing-up section 11 is heated.And the pipeline between first blower fan 5 and the mixing chamber b is provided with and is used to control hot burning gas capacity of returns first valve 6.Air-in one end of normal temperature air intake line A is provided with the 4th valve 17 of control normal temperature air flow, also is provided with second valve 7 on the heat-conducting medium output pipe E.Through the temperature of gas in the aperture control piper of valve, reduce gas to corrosion of pipe, protection regenerator, and the safe operation of assurance regenerative system.
Be connected through at least one import discharger 3 between drying tower 2 and the regenerator bringing-up section 11, import discharger 3 is selected for use to activated coke wearing and tearing, material valve that shear action is as far as possible little, like star discharge valve, butterfly discharge valve.On the connecting line of import discharger 3 atmospheric valve is set.The top of drying tower 2 is connected with a charging discharger 1.In drying tower 2, the hot-air that activated coke and hot-air output pipe B see off carries out power conversion, the heat that has utilized regenerator cooling section 13 to discharge fully.In addition, the heat-conducting medium output pipe E in the heater sees the portion of hot heat-conducting medium to the drying tower 2 off also to the activated coke preheating from regenerator bringing-up section 11, makes that the waste heat of gas is able to utilize after the heat exchange, has practiced thrift system's heat energy; And make activated coke before getting into regenerator 4, carry out preheating, the regeneration reducing reaction of activated coke is more abundant.In addition, first blower fan 5 and second blower fan 15 have also played the purpose of quickening the heat-conducting medium circulation, have improved the conversion efficiency of energy.
The course of work of activated coke regeneration desorb is following:
Activated coke from desulfurizing tower enters into drying tower 2 through one or more dischargers 1; Activated coke directly contacts preheating with the high-temp combustion gas of seeing off from the hot-air and first blower fan 5 of second blower fan 15 in the drying tower 2, and the gas after the heat exchange is thrown into outside the drying tower 2; Activated coke after the preheating enters into regenerator bringing-up section 11 through one or more dischargers 3; Gas after 11 heat exchange of regenerator bringing-up section is extracted out by first blower fan 5; A gas part is used for the activated coke of preheating and drying tower 2; Another part gas gets among the mixing chamber b of hot-blast stove 8 and mixes with burning gases, and mixed gas gets into 11 pairs of activated coke of regenerator bringing-up section and heats, and regulates the temperature of controlling combustion mixture through the aperture of first valve 6, second valve 7; Activated coke after the heating is from up to down passed in the process of regenerator section 12, progressively is heated to about 400 ℃ regenerative response takes place, and the sulfur dioxide gas that is rich in that bears again is reproduced blower fan and takes away; The activated coke that flows into regenerator cooling section 13 obtained regeneration and temperature higher; Need its cooling could be discharged; The hot-air of normal temperature air of being sent into by normal temperature air intake line A and 15 outlets of second blower fan is regulated the flow of control air through the aperture of the 4th valve 17; Normal temperature air gets into 13 pairs of activated coke of regenerator cooling section and cools off, and 15 tractions are sent in the drying tower 2 through hot-air output pipe B through second blower fan then, contact with activated coke it is carried out preheating; Cooling section 13 cooled activated coke recycle after outlet discharger 14 is discharged reclaim equiment, accomplish regenerative operation.Wherein, the temperature of gas in the pipeline has been adjusted in being provided with of valve, has reduced high-temperature gas to corrosion of pipe, and the protection regenerator guarantees the safe operation of regenerative system.
Embodiment 2:
The heat integration type activated coke purifying regeneration treatment system of present embodiment is described in conjunction with Fig. 2; Being different from embodiment 1 part is: heat-exchanger rig comprises second blower fan 15, a normal temperature air intake line A, a hot-air output pipe B; Normal temperature air intake line A and hot-air output pipe B are connected on the regenerator 4; Second blower fan 15 is arranged on the hot-air output pipe B, is used for that the hot-air after the heat exchange is sent into drying tower 2 activated coke is carried out preheating.Air-in one end of normal temperature air intake line A is provided with the 4th valve 17 of control normal temperature air flow; Also be connected with one on the hot-air output pipe B and be used for hot air reflow mixed pipe line C that the portion of hot air is mixed with normal temperature air, hot air reflow mixed pipe line C is connected on the normal temperature air intake line A.
Utilize treatment system of the present invention, adopt following mode that activated coke is regenerated, concrete processing method is following:
(a) activated coke preheating: get in the drying tower 2 from the activated coke of desulfurizing tower, the high-temp combustion gas that the hot-air of being seen off by the hot-air output pipe B of heat-exchanger rig and the heat-conducting medium output pipe E of heater see off directly contacts with activated coke and carries out preheating;
(b) activated coke heating: activated coke gets in the regenerator bringing-up section 11; The high-temp combustion gas that burning produces among the combustion chamber a of heating furnace 8 gets into mixing chamber b; And send in the regenerator bringing-up section 11 through pipeline, make activated coke under the effect of high-temp combustion gas, progressively heat up, the combustion gas after the heat exchange is extracted out by first blower fan 5; Part gas gets among the mixing chamber b and mixes the heating that circulates with high-temp combustion gas, and another part gas is sent into preheating activated coke in the drying tower 2 through heat-conducting medium output pipe E;
(c) activated coke regeneration: activated coke is reproduced in regenerator regenerator section 12, and that bears is rich in SO again
2Gas is reproduced blower fan and takes away;
(d) activated coke cooling: the activated coke after the regeneration gets in the regenerator cooling section 13; Normal temperature air intake line A sends into normal temperature air in the cooling section 13 and cools off activated coke; The activated coke that air after the heat exchange is extracted out in hot-air output pipe B is used for preheating and drying tower 2 by second blower fan 15 from desulfurizing tower; Cooled activated coke recycles after discharging treatment system, accomplishes regenerative operation.
Wherein, heat-conducting medium is an air burning gas in bringing-up section 11 cyclic processes, promptly is mainly nitrogen and carbon dioxide mix gas, not with activated coke generation chemical reaction, only plays the effect of conduction heat energy, and the regenerative process safety coefficient is high.Heat-conducting medium in cooling section 13 cyclic processes is an air.Activated coke is heated to 300 ℃～450 ℃ in regenerator bringing-up section 11.
Activated coke regeneration treatment system of the present invention and method have made full use of used heat, and then energy savings, and it can also use at needs certain material is reacted or cracking at a certain temperature, to obtain the occasion of a kind of solid matter and a kind of gaseous substance.
Those skilled in the art will recognize that; The above-mentioned specific embodiment is exemplary; Be in order to make those skilled in the art can better understand this patent content; Should not be construed as is the restriction to this patent protection domain, changes or modifies so long as disclose spiritual any being equal to of being done according to this patent, all falls into this patent protection domain.
Claims (8)
1. heat integration type activated coke purifying regeneration treatment system, it is characterized in that: said treatment system comprises regenerating unit, preheating device, heater and heat-exchanger rig;
Said regenerating unit comprises a regenerator (4), and said regenerator (4) is divided into bringing-up section (11), regenerator section (12) and cooling section (13) from top to bottom successively;
Said preheating device comprises a drying tower (2), and said drying tower (2) is arranged on the top of said regenerator (4) and is communicated with said regenerator (4) through pipeline, and heat-conducting medium directly contacts with activated coke activated coke is carried out preheating in the said drying tower (2);
Said heater comprises a hot-blast stove (8), first blower fan (5); Said hot-blast stove (8), first blower fan (5) are connected to form heat-conducting medium circulation line (D) through pipeline and said regenerator (4), are used for the activated coke of said regenerator bringing-up section (11) is heated; Also be connected with a heat-conducting medium output pipe (E) on the said heat-conducting medium circulation line (D), said heat-conducting medium output pipe (E) is connected to and is used on the said drying tower (2) activated coke of drying tower (2) is carried out preheating;
Said heat-exchanger rig comprises second blower fan (15), a normal temperature air intake line (A), a hot-air output pipe (B); Said normal temperature air intake line (A) and said hot-air output pipe (B) are connected on the said regenerator (4); Said second blower fan (15) is arranged on the said normal temperature air intake line (A) or on the said hot-air output pipe (B), is used for that the hot-air after the heat exchange is sent into said drying tower (2) activated coke is carried out preheating.
2. treatment system according to claim 1; It is characterized in that: said hot-blast stove (8) is divided into combustion chamber (a) and mixing chamber (b); Said mixing chamber (b) is communicated with said first blower fan (5) and said regenerator bringing-up section (11) respectively, and the pipeline between said first blower fan (5) and the mixing chamber (b) is provided with first valve (6).
3. treatment system according to claim 2; It is characterized in that: air-in one end of said normal temperature air intake line (A) is provided with the 4th valve (17) of control normal temperature air flow; Also be connected with one on the said hot-air output pipe (B) and be used for hot air reflow mixed pipe line (C) that the portion of hot air is mixed with normal temperature air, said hot air reflow mixed pipe line (C) is connected on the normal temperature air intake line (A).
4. treatment system according to claim 3 is characterized in that: also be provided with second valve (7) on the said heat-conducting medium output pipe (E).
5. according to the described treatment system of the arbitrary claim of claim 1 to 4; It is characterized in that: be connected through at least one import discharger (3) between said drying tower (2) and the said regenerator; Said import discharger (3) is star baiting valve or butterfly baiting valve, and the connecting line of said import discharger (3) is provided with atmospheric valve.
6. treatment system according to claim 5; It is characterized in that: the top of said drying tower (2) is connected with a charging discharger (1); The tail end of said regenerator cooling section (13) is connected with an outlet discharger (14), and said outlet discharger (14) is star baiting valve or butterfly baiting valve.
7. a processing method that adopts heat integration type activated coke purifying regeneration treatment system as claimed in claim 6 to carry out activated coke regeneration is characterized in that comprising the steps:
(a) activated coke preheating: activated coke gets in the said drying tower (2), and the hot-air of being seen off by said hot-air output pipe (B) directly contacts with activated coke with the high temperature heat conducting medium that said heat-conducting medium output pipe (E) is seen off activated coke is carried out preheating;
(b) activated coke heating: said activated coke progressively heats up under the high temperature heat conducting medium effect that said heater is seen off in regenerator bringing-up section (11);
(c) activated coke regeneration: said activated coke is reproduced in regenerator regenerator section (12), and that bears is rich in SO again
2Gas is reproduced blower fan and takes away;
(d) activated coke cooling: the activated coke after the regeneration gets into said regenerator cooling section (13) and cools off, and cooled activated coke recycles after discharging treatment system, accomplishes regenerative operation.
8. processing method according to claim 7 is characterized in that: said heat-conducting medium is an air burning gas, and activated coke is heated to 300 ℃～450 ℃ in said bringing-up section (11).
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN104508257A (en) * | 2012-07-31 | 2015-04-08 | 通用电气公司 | Regenerative thermal energy system, a power generating facility comprising such a system and a method of operating the same |
| CN105080484A (en) * | 2015-08-28 | 2015-11-25 | 嘉兴市富译环保工程有限公司 | Active coke regeneration system and method |
| CN105771946A (en) * | 2016-05-16 | 2016-07-20 | 上海克硫环保科技股份有限公司 | Regeneration system and method for activated coke |
| CN107854924A (en) * | 2017-12-05 | 2018-03-30 | 上海克硫环保科技股份有限公司 | A kind of activated coke dry method flue gas processing method and system |
| CN108939807A (en) * | 2018-07-12 | 2018-12-07 | 中冶长天国际工程有限责任公司 | A kind of flue gas purification device and its application method improving utilization rate of waste heat and denitrification rate |
| CN109621930A (en) * | 2019-02-01 | 2019-04-16 | 中冶北方（大连）工程技术有限公司 | Rapid cooling system and method for Analytic Tower in activated coke flue gas purification system |
| CN110304631A (en) * | 2019-07-25 | 2019-10-08 | 河北威达蓝海环保科技有限公司 | Active coke secondary molding device and process |
| CN113651325A (en) * | 2021-08-16 | 2021-11-16 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by using multi-stage furnace |
| CN113946173A (en) * | 2020-07-15 | 2022-01-18 | 中冶长天国际工程有限责任公司 | Temperature control system, method and device for analytical tower |
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| CN104508257A (en) * | 2012-07-31 | 2015-04-08 | 通用电气公司 | Regenerative thermal energy system, a power generating facility comprising such a system and a method of operating the same |
| CN103375974A (en) * | 2013-04-18 | 2013-10-30 | 安徽省昊晟能源科技有限公司 | Novel hot air drying system for preparing power |
| CN105080484A (en) * | 2015-08-28 | 2015-11-25 | 嘉兴市富译环保工程有限公司 | Active coke regeneration system and method |
| CN105771946A (en) * | 2016-05-16 | 2016-07-20 | 上海克硫环保科技股份有限公司 | Regeneration system and method for activated coke |
| CN107854924A (en) * | 2017-12-05 | 2018-03-30 | 上海克硫环保科技股份有限公司 | A kind of activated coke dry method flue gas processing method and system |
| CN108939807B (en) * | 2018-07-12 | 2020-10-27 | 中冶长天国际工程有限责任公司 | Flue gas purification device for improving waste heat utilization rate and denitration rate and use method thereof |
| CN108939807A (en) * | 2018-07-12 | 2018-12-07 | 中冶长天国际工程有限责任公司 | A kind of flue gas purification device and its application method improving utilization rate of waste heat and denitrification rate |
| CN109621930A (en) * | 2019-02-01 | 2019-04-16 | 中冶北方（大连）工程技术有限公司 | Rapid cooling system and method for Analytic Tower in activated coke flue gas purification system |
| CN109621930B (en) * | 2019-02-01 | 2024-02-06 | 中冶北方（大连）工程技术有限公司 | Rapid cooling system and method for analytic tower in active coke flue gas purification system |
| CN110304631A (en) * | 2019-07-25 | 2019-10-08 | 河北威达蓝海环保科技有限公司 | Active coke secondary molding device and process |
| CN113946173A (en) * | 2020-07-15 | 2022-01-18 | 中冶长天国际工程有限责任公司 | Temperature control system, method and device for analytical tower |
| CN113651325A (en) * | 2021-08-16 | 2021-11-16 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by using multi-stage furnace |
| CN113651325B (en) * | 2021-08-16 | 2023-12-08 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by multi-stage furnace |
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