CN103991869A - Phosphoric acid activated carbon activating furnace waste-heat utilization and tail-gas absorption device - Google Patents
Phosphoric acid activated carbon activating furnace waste-heat utilization and tail-gas absorption device Download PDFInfo
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- CN103991869A CN103991869A CN201410185764.2A CN201410185764A CN103991869A CN 103991869 A CN103991869 A CN 103991869A CN 201410185764 A CN201410185764 A CN 201410185764A CN 103991869 A CN103991869 A CN 103991869A
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- phosphoric acid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a phosphoric acid activated carbon activating furnace waste-heat utilization and tail-gas absorption device. Heat exchange pipes are connected with hot water outlet headers; a hoisting hole is located between each hot water outlet header and each cold water outlet header; the cold water outlet headers are connected with the heat exchange pipes; a top insulating layer is located above the heat exchange pipes; support hooks are each located on the upper end of the heat exchange pipe. The device breaks traditional concepts of the conventional activated carbon activating furnace waste-heat utilization and tail gas absorption device field, so as to achieve the purpose of the waste-heat utilization; and at present, because of use of the waste-heat utilization device, the flue gas temperature is dropping, a humidification cooling tower can be supplemented, effects can be reached by direct use of a tail gas absorbing spray tower, and moreover, investment and operation costs of a tail gas absorbing system are saved.
Description
Technical field
The present invention relates to wood activated charcoal activation furnace stove tail UTILIZATION OF VESIDUAL HEAT IN and tail gas and absorb design and transformation, be specially a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment.
Background technology
Along with social progressive people improve constantly the requirement of quality of life, as the wood activated charcoal of decontamination toxin expelling impurities removal, demand is increasing, and use range is more and more extensive.As the industries such as medicine, sugar industry food, makeup, urban water supply, tobacco, drinks, chemical industry, vehicle exhaust processing all need to use, and militarily the demand of gac constantly increased and there is no substitute, so this product economy prospect is very good.The main raw material(s) of wood activated charcoal activated carbon product is the discarded wood chip of production of forestry, and the production technique of gac can be divided into two kinds of chemical method and Physicals.The problems such as the consumption of current domestic chemical method Activated Carbon Production ubiquity phosphoric acid is large, energy consumption is high, smoke pollution is serious and mechanization degree is low, personnel labor intensity is large.And phosphoric acid method production technique, topmost equipment is horizontal activation furnace, utilize pierce smith converter to carry out charing and the activation of wood chip, the flue gas of mostly counting producer's horizontal activation furnace stove tail is directly emptying, amount of heat in flue gas can not reclaim, this has caused a series of problem: one, phosphoric acid method production technique pierce smith converter outlet exhaust temperature must be controlled, quality product could be up to standard, long with 35 meters, the pierce smith converter of 1.8 rice diameters is example, production capacity is by calculating over 6 tons/day, outlet exhaust gas volumn will reach 15000Nm3/h, exit gas temperature must be controlled at 180 ℃ ~ 200 ℃, and this part heat energy can not reclaim, directly emptying, caused a large amount of heat-energy losses.Two, phosphoric acid method production technique reclaim rinsing process need be with a large amount of hot water, general charcoal per ton need consume 70 ℃ ~ 80 ℃ of 8 tons of left and right hot water, and this part hot water needs a boiler of special increase to solve, thermal waste is used on the one hand, production process is badly in need of again heat energy on the other hand, and heat energy does not effectively utilize and seem extremely unreasonable.Three, in pierce smith converter outlet tail gas, phosphoric acid acid mist entrainment amount is large, so that caused the phosphoric acid consumption of product to increase, ton charcoal phosphoric acid consumption is generally all greater than 0.3, and this part phosphoric acid can not be reclaimed.This part tail gas is not absorbed simultaneously, has caused certain topsoil yet.Four, pierce smith converter outlet exhaust temperature is high, caused flue gas volume flow bigger than normal, to pierce smith converter exhaust, height and the diameter of chimney are had higher requirement, as pierce smith converter outlet tail gas, exhaust is obstructed, and this has also affected indirectly the performance of quality and the production capacity of product.There are at present solution that producer attempts and the problem of existence: one, in pierce smith converter exhaust pass, interchanger is set or horizontal direction arranges heat exchange coil, reach the object of UTILIZATION OF VESIDUAL HEAT IN heat production water, this scheme can reach certain operating performance early stage, but flue dust and wood tar oil etc. will stop up heat transfer tube very soon, this has caused heat exchange not smooth, and flue blockage finally causes production to be difficult to for continuous, and heat transfer tube and flue cleaning are very inconvenient, this scheme is obviously undesirable.Two, stainless steel flue is set, flue is built heat exchange hot tub outward again, and this scheme heat exchange efficiency is extremely low, and a large amount of heats can not effectively utilize, and this scheme cost is high in addition, and stainless steel flue also needs periodic cleaning, and this scheme is obviously undesirable.Three, heat transfer tube more than two is set in pierce smith converter exhaust pass, heat transferring medium changes dilute phosphoric acid into by water, by the heat energy of exchange recovered carbon kiln tail gas, normal temperature dilute phosphoric acid in heating heat transfer tube, so that next step concentration and recovery of dilute phosphoric acid utilizes, this scheme cost is high, first requires must have Phosphoric Acid Concentration recovery system in technical process, also the problem that does not solve on the one hand in addition heat transfer tube and flue blockage cleaning, this scheme is obviously also undesirable.Four, at pierce smith converter Increasing exports tail, inhale spray column, to reach the object that reclaims phosphoric acid in tail gas, the phosphoric acid under reclaiming is got back in system and is recycled again, and this has reached the object that reclaims phosphoric acid, but this scheme is not considered the problem of UTILIZATION OF VESIDUAL HEAT IN, obviously scheme is yet weak.Above method is all not suitable for satisfactorily resolving of problem.
Summary of the invention
For the problems referred to above, the present invention aims to provide a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment.
For realizing this technical purpose, the solution of the present invention is: a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment, comprise heat transfer tube, and hot water outlet header, then be erection opening, the cooling water outlet header corresponding with hot water outlet header again, and then be respectively top thermal insulation layer, support hook, finally three groups of heat exchangers, described hot replace tubes is connected with hot water outlet header, described erection opening is between hot water outlet header and cooling water outlet header, described cooling water outlet header is connected with hot replace tubes, described top thermal insulation layer is positioned at heat transfer tube top, described support hook lays respectively at the upper end of heat transfer tube.
As preferably, described hot replace tubes is designed by the stainless material of 316L model.
As preferably, described hot water outlet header and cooling water outlet header are respectively the heat-exchange devices of water.
As preferably, described hot water outlet header, erection opening and cooling water outlet header all have one on three groups of heat exchangers.
As preferably, described first group of heat exchanger, second group of heat exchanger and the 3rd group of heat exchanger adopt to be installed in series and form a set of heat-exchanger rig.
The present invention breaks the traditional concept of absorbent charcoal activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment field in the past, adopt novel method to design a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and device for absorbing tail gas, by calculating, in the residual heat using device of arranging certain heat interchanging area in pierce smith converter stove tail flue, to reach UTILIZATION OF VESIDUAL HEAT IN object.With 35 meters long, the pierce smith converter of 1.8 rice diameters is example, and production capacity, by calculating over 6 tons/day, guarantee that exit gas temperature controls to 100 ℃ of left and right, and heat interchanging area need reach more than 158 square metres.Residual heat using device adopts the heat-exchanging tube bundle setting of transversal flow, and transversal flow structure is applicable to the environment that flue dust is larger, and flue dust and wood tar oil etc. can not stop up heat transfer tube very soon, controls certain tube pitch well simultaneously, so that the cleaning of heat transfer tube and flue.UTILIZATION OF VESIDUAL HEAT IN heat transfer tube adopts the 316L stainless steel tube of φ 32X3, to overcome high temperature in converter flue and the impact of corrosion, several places manhole is set at flue place, so that flue cleaning simultaneously.Heat transferring medium is technique cold water, water is walked tube side, flue gas is walked shell side, by the hot water of residual heat using device heat exchange, deliver to again in the boiler of burner and go, this cover residual heat using device is equivalent to the economizer of boiler, to reach Low Temperature Thermal to the warm conversion of height, this conversion regime relatively rationally flexibly, can meet the different demands of producing hot water temperature.The collection device of flue gas condensing liquid is set at the low-lying place of flue, and the phlegma of collecting is directly delivered in stove tail mixing system and is recycled, and this has reached the object that reclaims phosphoric acid.In the outlet of pierce smith converter UTILIZATION OF VESIDUAL HEAT IN, increase tail again and inhale spray column, to reach the object that reclaims phosphoric acid in tail gas, the phosphoric acid under reclaiming is got back in system and is recycled again, and this has reached the object that reclaims phosphoric acid and environment protection standard discharge.By residual heat using device exit gas temperature, from 180 ℃ ~ 200 ℃ left and right, drop to 100 ℃ ~ 120 ℃ left and right, per hourly produce 10 tons of left and right hot water, residual heat using device outlet hot water water temperature can reach 45 ℃ ~ 55 ℃ left and right.The hot water of output has been delivered to burner boiler secondary heating, delivers to after controlling to 70 ℃ ~ 80 ℃ to reclaim and rinsing process is used again, and has met the demand to hot water of producing.The blockage problem of heat transfer tube has been controlled in the heat-exchanging tube bundle setting of transversal flow effectively, by controlling certain tube pitch and flue place well, several places manhole is set in addition, the periodic cleaning of more convenient flue and heat transfer tube, has guaranteed the heat transfer effect of residual heat using device.By the recovery to phosphoric acid acid mist phlegma in pierce smith converter outlet tail gas, the phlegma of collecting is directly delivered in stove tail mixing system and is recycled, and ton charcoal phosphoric acid consumption is less than 0.25.Due to coming into operation of residual heat using device, exit gas temperature declines, and the high chimney of 1.8 70 meters of rice diameters can meet two 35 meters long, the full production of the pierce smith converter of 1.8 rice diameters.Pierce smith converter tail desorption system is generally comprised of two towers, one is that one of humidification cooling tower is that tail is inhaled spray column absorption, cascade towers is used, existing coming into operation due to residual heat using device, the decline of flue-gas temperature, humidification cooling tower can be filled, and directly with a tail, inhaling spray column can be effective, and this has also saved investment and the running cost of tail desorption system.
Accompanying drawing explanation
Fig. 1 is UTILIZATION OF VESIDUAL HEAT IN schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing basis and specific embodiment, the present invention is described in further details.
As shown in Figure 1, a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and the tail gas absorption equipment of the embodiment of the present invention, comprise heat transfer tube 1, and hot water outlet header 2, then be erection opening 3, the cooling water outlet header 4 corresponding with hot water outlet header again, and then be respectively top thermal insulation layer 5, support hook 6, finally three groups of heat exchangers, described hot replace tubes 1 is connected with hot water outlet header 2, described erection opening 3 is between hot water outlet header 2 and cooling water outlet header 4, described cooling water outlet header 4 is connected with hot replace tubes 1, described top thermal insulation layer 5 is positioned at heat transfer tube 1 top, described support hook 6 lays respectively at the upper end of heat transfer tube 1.
As preferably, described hot replace tubes 1 is designed by the stainless material of 316L model.
As preferably, described hot water outlet header 2 and cooling water outlet header 4 are respectively the heat-exchange devices of water.
As preferably, described hot water outlet header 2, erection opening 3 and cooling water outlet header 4 all have one on three groups of heat exchangers.
As preferably, described first group of heat exchanger 7, second group of heat exchanger 8 and the 3rd group of heat exchanger 9 adopt to be installed in series and form a set of heat-exchanger rig.
The present invention breaks the traditional concept of absorbent charcoal activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment field in the past, adopt novel method to design a kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and device for absorbing tail gas, by calculating, in the residual heat using device of arranging certain heat interchanging area in pierce smith converter stove tail flue, to reach UTILIZATION OF VESIDUAL HEAT IN object.With 35 meters long, the pierce smith converter of 1.8 rice diameters is example, and production capacity, by calculating over 6 tons/day, guarantee that exit gas temperature controls to 100 ℃ of left and right, and heat interchanging area need reach more than 158 square metres.Residual heat using device adopts the heat-exchanging tube bundle setting of transversal flow, and transversal flow structure is applicable to the environment that flue dust is larger, and flue dust and wood tar oil etc. can not stop up heat transfer tube very soon, controls certain tube pitch well simultaneously, so that the cleaning of heat transfer tube and flue.UTILIZATION OF VESIDUAL HEAT IN heat transfer tube adopts the 316L stainless steel tube of φ 32X3, to overcome high temperature in converter flue and the impact of corrosion, several places manhole is set at flue place, so that flue cleaning simultaneously.Heat transferring medium is technique cold water, water is walked tube side, flue gas is walked shell side, by the hot water of residual heat using device heat exchange, deliver to again in the boiler of burner and go, this cover residual heat using device is equivalent to the economizer of boiler, to reach Low Temperature Thermal to the warm conversion of height, this conversion regime relatively rationally flexibly, can meet the different demands of producing hot water temperature.The collection device of flue gas condensing liquid is set at the low-lying place of flue, and the phlegma of collecting is directly delivered in stove tail mixing system and is recycled, and this has reached the object that reclaims phosphoric acid.In the outlet of pierce smith converter UTILIZATION OF VESIDUAL HEAT IN, increase tail again and inhale spray column, to reach the object that reclaims phosphoric acid in tail gas, the phosphoric acid under reclaiming is got back in system and is recycled again, and this has reached the object that reclaims phosphoric acid and environment protection standard discharge.By residual heat using device exit gas temperature, from 180 ℃ ~ 200 ℃ left and right, drop to 100 ℃ ~ 120 ℃ left and right, per hourly produce 10 tons of left and right hot water, residual heat using device outlet hot water water temperature can reach 45 ℃ ~ 55 ℃ left and right.The hot water of output has been delivered to burner boiler secondary heating, delivers to after controlling to 70 ℃ ~ 80 ℃ to reclaim and rinsing process is used again, and has met the demand to hot water of producing.The blockage problem of heat transfer tube has been controlled in the heat-exchanging tube bundle setting of transversal flow effectively, by controlling certain tube pitch and flue place well, several places manhole is set in addition, the periodic cleaning of more convenient flue and heat transfer tube, has guaranteed the heat transfer effect of residual heat using device.By the recovery to phosphoric acid acid mist phlegma in pierce smith converter outlet tail gas, the phlegma of collecting is directly delivered in stove tail mixing system and is recycled, and ton charcoal phosphoric acid consumption is less than 0.25.Due to coming into operation of residual heat using device, exit gas temperature declines, and the high chimney of 1.8 70 meters of rice diameters can meet two 35 meters long, the full production of the pierce smith converter of 1.8 rice diameters.Pierce smith converter tail desorption system is generally comprised of two towers, one is that one of humidification cooling tower is that tail is inhaled spray column absorption, cascade towers is used, existing coming into operation due to residual heat using device, the decline of flue-gas temperature, humidification cooling tower can be filled, and directly with a tail, inhaling spray column can be effective, and this has also saved investment and the running cost of tail desorption system.
The above; it is only preferred embodiment of the present invention; not in order to limit the present invention, any trickle modification that every foundation technical spirit of the present invention is done above embodiment, be equal to and replace and improve, within all should being included in the protection domain of technical solution of the present invention.
Claims (4)
1. an activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment, comprise heat transfer tube, and hot water outlet header, then be erection opening, the cooling water outlet header corresponding with hot water outlet header again, and then be respectively top thermal insulation layer, support hook, finally three groups of heat exchangers, it is characterized in that: described hot replace tubes is connected with hot water outlet header, described erection opening is between hot water outlet header and cooling water outlet header, described cooling water outlet header is connected with hot replace tubes, described top thermal insulation layer is positioned at heat transfer tube top, described support hook lays respectively at the upper end of heat transfer tube.
2. the design of a kind of powder wood activated charcoal packing of product air extractor according to claim 1, is characterized in that: described hot water outlet header and cooling water outlet header are respectively the heat-exchange devices of water.
3. the design of a kind of powder wood activated charcoal packing of product air extractor according to claim 1, is characterized in that: described hot water outlet header, erection opening and cooling water outlet header all have one on three groups of heat exchangers.
4. the design of a kind of powder wood activated charcoal packing of product air extractor according to claim 1, is characterized in that: described first group of heat exchanger, second group of heat exchanger and the 3rd group of heat exchanger adopt to be installed in series and form a set of heat-exchanger rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185764.2A CN103991869B (en) | 2014-05-05 | 2014-05-05 | A kind of phosphatase activity carbon activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185764.2A CN103991869B (en) | 2014-05-05 | 2014-05-05 | A kind of phosphatase activity carbon activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment |
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| Publication Number | Publication Date |
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| CN103991869A true CN103991869A (en) | 2014-08-20 |
| CN103991869B CN103991869B (en) | 2016-08-24 |
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| CN201410185764.2A Expired - Fee Related CN103991869B (en) | 2014-05-05 | 2014-05-05 | A kind of phosphatase activity carbon activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654988A (en) * | 2017-10-12 | 2018-02-02 | 苏州海陆重工股份有限公司 | A kind of combustion engine waste heat boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234762A (en) * | 2008-02-27 | 2008-08-06 | 邹炎 | Physical method energy-saving cleaning technique for manufacturing active carbon |
| CN101608794A (en) * | 2009-07-27 | 2009-12-23 | 太原嘉能动力科技有限公司 | The UTILIZATION OF VESIDUAL HEAT IN method of low-concentration combustibles |
| CN202420215U (en) * | 2011-12-31 | 2012-09-05 | 福建省建瓯市芝星活性炭有限公司 | Using and collecting device for afterheat of tail gas of activated carbon kiln |
| CN103292303A (en) * | 2012-02-29 | 2013-09-11 | 中北大学 | System and method for recycling latent heat of water steam in tail gas of Slapple activating furnace |
| CN203922734U (en) * | 2014-05-05 | 2014-11-05 | 贵州黎平奥捷炭素有限公司 | A kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment |
-
2014
- 2014-05-05 CN CN201410185764.2A patent/CN103991869B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234762A (en) * | 2008-02-27 | 2008-08-06 | 邹炎 | Physical method energy-saving cleaning technique for manufacturing active carbon |
| CN101608794A (en) * | 2009-07-27 | 2009-12-23 | 太原嘉能动力科技有限公司 | The UTILIZATION OF VESIDUAL HEAT IN method of low-concentration combustibles |
| CN202420215U (en) * | 2011-12-31 | 2012-09-05 | 福建省建瓯市芝星活性炭有限公司 | Using and collecting device for afterheat of tail gas of activated carbon kiln |
| CN103292303A (en) * | 2012-02-29 | 2013-09-11 | 中北大学 | System and method for recycling latent heat of water steam in tail gas of Slapple activating furnace |
| CN203922734U (en) * | 2014-05-05 | 2014-11-05 | 贵州黎平奥捷炭素有限公司 | A kind of activated carbon of phosphoric acid activation furnace UTILIZATION OF VESIDUAL HEAT IN and tail gas absorption equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654988A (en) * | 2017-10-12 | 2018-02-02 | 苏州海陆重工股份有限公司 | A kind of combustion engine waste heat boiler |
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