CN107174940A - A kind of calcium carbide stove exhaust recycle device - Google Patents

A kind of calcium carbide stove exhaust recycle device Download PDF

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Publication number
CN107174940A
CN107174940A CN201710570284.1A CN201710570284A CN107174940A CN 107174940 A CN107174940 A CN 107174940A CN 201710570284 A CN201710570284 A CN 201710570284A CN 107174940 A CN107174940 A CN 107174940A
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CN
China
Prior art keywords
noise reduction
tourie
calcium carbide
chamber
absorption
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Pending
Application number
CN201710570284.1A
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Chinese (zh)
Inventor
罗秋
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Hengyang Yishun Chemical Co Ltd
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Hengyang Yishun Chemical Co Ltd
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Priority to CN201710570284.1A priority Critical patent/CN107174940A/en
Publication of CN107174940A publication Critical patent/CN107174940A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/004Combinations of devices relating to groups B01D45/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493Selection of liquid materials for use as absorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/62Carbon oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/30Alkali metal compounds
    • B01D2251/304Alkali metal compounds of sodium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2252/00Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10Inorganic absorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/50Carbon oxides
    • B01D2257/502Carbon monoxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/025Other waste gases from metallurgy plants
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

The invention belongs to technical field of environmental protection in chemical industry there is provided a kind of calcium carbide stove exhaust recycle device, the offgas outlet of furnace of calcium carbide has been sequentially communicated air-introduced machine, the environmentally friendly tourie of noise reduction, cyclone separator, spray scrubber, gas compressor and synthesis reactor;Provided with the upper spacer and lower clapboard that its internal cavities is divided into absorption chamber, noise reduction chamber and cooling chamber in noise reduction environmental protection tourie, some first bloops are offered on upper spacer and lower clapboard, absorbing liquid is loaded with absorption chamber, hush pipe provided with least two connection absorption chambers and cooling chamber in noise reduction chamber, heat exchanger tube is provided with cooling chamber, the bottom of noise reduction environmental protection tourie is communicated with being communicated with the gas outlet of cooling chamber at the top of the air inlet of absorption chamber, noise reduction environmental protection tourie;Sodium bicarbonate aqueous solution is loaded with synthesis reactor.The present invention realizes the recycling of calcium carbide stove exhaust, it is to avoid the wasting of resources, prevents from polluting environment and health of human body is caused harm.

Description

A kind of calcium carbide stove exhaust recycle device
Technical field
The present invention relates to technical field of environmental protection in chemical industry, and in particular to a kind of calcium carbide stove exhaust recycle device.
Background technology
Chemical industry environmental protection refers to reduce and eliminates waste water in Chemical Manufacture, waste gas and waste residue (referred to as " three wastes ") are to ring around The pollution in border and the influence to the ecological balance and health, prevent and remedy pollution, and improve environment, and the work such as turn harm into good.
Calcium carbide stove exhaust is to produce the tail gas produced during calcium carbide, and main component has:Carbon monoxide (content 75%~ 90%), hydrogen (content 2%~10%), methane (content 2%~4%) etc., in addition also sulfide, phosphide, carbide, Contain substantial amounts of dust granules in several compositions of calcium and magnesium oxides, coal tar etc. ten, tail gas, and tail gas tapping temperature is higher by (400 ~800 DEG C), gas pressure is small.
In the prior art for the calcium carbide stove exhaust produced in calcium carbide production process, it is directly discharged to greatly by high chimney more In gas, environmental pollution, waste of resource are not only resulted in, and seriously endangers health of human body, in addition, can also during its exhaust emissions Produce larger noise pollution, realize effective processing to calcium carbide stove exhaust turned into chemical industry environmental protection urgent problem to be solved it One.
Therefore, a kind of calcium carbide stove exhaust recycle device is developed, not only with urgent researching value, it may have good Economic benefit and commercial application potentiality, this exactly where power for being accomplished of the present invention and basis.
The content of the invention
For defect of the prior art, the present invention provides a kind of calcium carbide stove exhaust recycle device, realizes tail gas Recycling, it is to avoid the wasting of resources, prevent from polluting environment and health of human body caused harm, meet China's ring Guarantor and the idea of development of waste resource recycling.
The invention provides a kind of calcium carbide stove exhaust recycle device, including furnace of calcium carbide, the tail gas of the furnace of calcium carbide goes out Mouthful by tracheae be sequentially communicated air-introduced machine, the environmentally friendly tourie of noise reduction, cyclone separator, spray scrubber, gas compressor and Synthesis reactor;
It is provided with upper spacer and lower clapboard in the environmentally friendly tourie of the noise reduction, the upper spacer and the lower clapboard are by the ring The internal cavities for protecting noise reduction tourie are divided into absorption chamber, noise reduction chamber and cooling chamber, and the upper spacer and the lower clapboard Offer some first bloops;
Absorbing liquid is loaded with the absorption chamber, and the bottom of the environmentally friendly tourie of the noise reduction is provided with and absorption chamber company Provided with least two noise reductions for connecting the absorption chamber and the cooling chamber in logical feed tube and drain pipe, the noise reduction chamber Pipe, the air inlet that the hush pipe is located in the absorption chamber is set higher than the liquid level of the absorbing liquid, and hush pipe position Offered in the part in the noise reduction chamber and heat exchanger tube is provided with some second bloops, the cooling chamber, the heat exchanger tube is passed through The environmental protection sound deadening tourie is worn to connect with refrigeration plant;
The bottom of the environmentally friendly tourie of the noise reduction is communicated with the air inlet of the absorption chamber, the environmentally friendly tourie of the noise reduction Top be communicated with the gas outlet of the cooling chamber;
Sodium bicarbonate aqueous solution is loaded with the synthesis reactor.
As an improvement technical scheme, the absorbing liquid be concentration be not less than 30% sodium chloride or potassium chloride it is water-soluble Liquid, the exhaust temperature after the absorbing liquid through the absorption chamber absorbs is reached in the range of 300~400 DEG C.
As an improvement technical scheme, the quantity of the hush pipe is set to 2-4 roots, and the hush pipe is in the drop Making an uproar, interior is evenly distributed to be set.
As an improvement technical scheme, the heat exchanger tube in the cooling chamber in " bow " shape or helical form arrangement Set, the exhaust temperature after being cooled down through the cooling chamber is reached in the range of 250~280 DEG C.
As an improvement technical scheme, the inwall of the environmental protection sound deadening tourie is provided with liquid level sensor, described Liquid level sensor is set close to the lower clapboard, and the liquid level sensor is located at below the air inlet of the hush pipe.
As an improvement technical scheme, the upper spacer, the lower clapboard and the environmental protection sound deadening tourie it is interior Sound absorption coating is coated with wall.
As an improvement technical scheme, the tail gas dust content after the cyclone separator dedusting is not higher than 20~ 40g/Nm3, through the spray scrubber wash after tail gas dust content be not higher than 1~10mg/Nm3, exhaust temperature reaches 150 In the range of~180 DEG C.
As an improvement technical scheme, the sodium bicarbonate aqueous solution concentration range in the synthesis reactor is 35% Between~45%.
Due to using above technical scheme, the invention has the advantages that;
The offgas outlet of furnace of calcium carbide has been sequentially communicated air-introduced machine, the environmentally friendly tourie of noise reduction, cyclone separator, spray by tracheae Drench in scrubbing tower, gas compressor and synthesis reactor, synthesis reactor and be loaded with sodium bicarbonate aqueous solution;The present invention is being used When, the calcium carbide stove exhaust drawn through air-introduced machine, in tourie environmentally friendly by noise reduction, can be carried out tentatively to calcium carbide stove exhaust Dust granules absorb and cooled so that the tail gas dustiness and temperature discharged after the environmentally friendly tourie processing of noise reduction are significantly Reduction, while having silencing function, reduces the noise pollution of recovery process generation, to realize the environment-friendly high-efficiency of calcium carbide stove exhaust Recycle and provide reliable guarantee, further removed into cyclone separator from the tail gas after the environmentally friendly tourie processing of noise reduction Spray scrubber is passed through after dirt, final tail gas clean-up is carried out, it is standard compliant after purification to pass through gas compression using gas Machine compresses so that temperature, pressure and the carbonomonoxide concentration therein of gas reach reaction necessary requirement, with synthesis reactor The sodium bicarbonate solution reaction generation sodium formate of middle splendid attire, so as to realize the environmentally friendly recycling of calcium carbide stove exhaust, it is to avoid straight Connecing calcium carbide stove exhaust being discharged into air causes environmental pollution and health of human body to injure, while avoiding the wasting of resources, realizes Energy-conserving and environment-protective resource reutilizations.
The noise reduction environmental protection being provided with absorbs jar structure, and calcium carbide stove exhaust absorbs pot bottom from noise reduction environmental protection and is passed through, absorbing In the presence of indoor absorbing liquid, realize that the absorption to tail gas is handled, substantially reduce the exhaust gas constituents in tail gas and the particle contained Impurity, the exhaust gas flow after being handled through absorbing liquid converges into cooling chamber via lower clapboard, upper spacer and hush pipe, under every In the presence of the first bloop and the second bloop that are offered on plate, upper spacer and hush pipe, decrease of noise functions is realized, it is to avoid Noise pollution, and noise reduction is efficiently obvious, the exhaust gas flow converged into cooling chamber, can be to tail in the presence of heat exchanger tube Heat in gas air-flow is absorbed, and waste gas realizes the preliminary purification processing of tail gas after a series of processing of the tourie And cooling noise reduction, the recycling to realize calcium carbide stove exhaust serves key effect, to realize having for subsequent processing device Imitate work and provide reliable guarantee.
In the present invention, the first bloop and the second bloop offered respectively on upper lower clapboard and hush pipe has Impedance complex formula silencing function, the noise that can be applied to different frequency is eliminated, wide using scope;Upper spacer, lower clapboard and ring The sound absorption coating being coated with the inwall for protecting noise reduction tourie, acoustically effective is good, can effectively improve the noise reduction of the tourie Decrease of noise functions, to realize that more preferable noise-reducing effect provides reliable guarantee.
In the present invention, absorbing liquid is the sodium chloride or potassium chloride solution that concentration is not less than 30%, is realizing dust granules While absorption, the part soluble impurity gas in calcium carbide stove exhaust can be removed, the absorption cleaning effect to tail gas is improved Rate, reaches that 300~400 DEG C of temperature ranges are provided for the tail gas after causing the absorbing liquid through absorption chamber to absorb and is effectively ensured.
In the present invention, heat exchanger tube improves heat exchanger tube pair in being set in cooling chamber in " bow " shape or spiral helicine arrangement The heat absorption efficiency of exhaust gas flow, to cause the tail gas after being cooled down through cooling chamber to reach, 250~280 DEG C of temperature range has been provided Effect ensures.
In the present invention, the liquid level sensor that the inwall of environmental protection sound deadening tourie is provided with can realize absorbing liquid liquid level Monitoring in real time, by the linkage with the electromagnetic valve on pipeline, to ensure that absorbing liquid liquid level is in specified working range all the time In value.
In the present invention, calcium carbide stove exhaust that self-induced-air power traction goes out is water cooled successively, noise reduction, air-cooled, purifying and dedusting and compression Afterwards, the temperature of tail gas, pressure, dust content and carbonomonoxide concentration therein meet recycling standard, realize energy-conservation Environmental protection, resource reutilization, it is to avoid environmental pollution.
In summary, the present invention realizes the recycling of calcium carbide stove exhaust, it is to avoid the wasting of resources, prevents from making environment Into pollution and health of human body is caused harm.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The accompanying drawing used required in embodiment or description of the prior art is briefly described.In all of the figs, similar element Or part is general by similar reference mark.In accompanying drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is structural representation of the invention;
Fig. 2 is the structural representation of the environmentally friendly tourie of noise reduction of the present invention;
Reference:1- furnaces of calcium carbide;2- air-introduced machines;3- noise reductions environmental protection tourie;4- cyclone separators;5- spray washings Tower;6- gas compressors;7- synthesis reactor;8- refrigeration machines;9- upper spacers;10- lower clapboards;11- absorption chambers;12- noise reduction chambers; 13- cooling chambers;14- air inlets;15- gas outlets;16- feed tubes;17- drain pipes;18- absorbing liquids;19- hush pipes;20- exchanges heat Pipe;21- liquid level sensors;22- sound absorption coatings;The bloops of 23- first;The bloops of 24- second;25- gas distributors.
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for Clearly illustrate technical scheme, therefore be only used as example, and the protection model of the present invention can not be limited with this Enclose.
As depicted in figs. 1 and 2, the invention provides a kind of tail gas recycling device of furnace of calcium carbide 1, including furnace of calcium carbide 1, electricity The offgas outlet of stone stove 1 has been sequentially communicated air-introduced machine 2, the environmentally friendly tourie 3 of noise reduction, cyclone separator 4, spray washing by tracheae Tower 5, gas compressor 6 and synthesis reactor 7;Self-induced-air machine 2 draw the tail gas of furnace of calcium carbide 1 is water cooled successively, noise reduction, it is air-cooled, After purifying and dedusting and compression, temperature, pressure, dust content and the carbonomonoxide concentration therein of tail gas meet recycling mark Standard, realize energy-conserving and environment-protective, resource reutilization, it is to avoid environmental pollution.
In the present embodiment, upper spacer 9 and lower clapboard 10 are provided with noise reduction environmental protection tourie 3, upper spacer 9 and lower clapboard 10 will The internal cavities of environmental protection sound deadening tourie are divided into absorption chamber 11, noise reduction chamber 12 and cooling chamber 13, and upper spacer 9 and lower clapboard 10 On offer some first bloops 23;Absorbing liquid 18 is loaded with absorption chamber 11, and the bottom of the environmentally friendly tourie 3 of noise reduction is set Have in the feed tube 16 and drain pipe 17 connected with absorption chamber 11, noise reduction chamber 12 provided with least two connection absorption chambers 11 and cooling The hush pipe 19 of room 13, the air inlet that hush pipe 19 is located in absorption chamber 11 is set higher than the liquid level of absorbing liquid 18, and hush pipe 19 parts being located in noise reduction chamber 12 are offered in some second bloops 24, the present embodiment, and hush pipe 19 is provided with 2, in drop Make an uproar it is evenly distributed in room 12 set, heat exchanger tube 20 is provided with cooling chamber 13, heat exchanger tube 20 is through environmental protection sound deadening tourie and refrigeration Equipment is connected, and refrigeration plant can select refrigeration machine 8;The bottom of noise reduction environmental protection tourie 3 is communicated with the air inlet of absorption chamber 11 14, the top of noise reduction environmental protection tourie 3 is communicated with the gas outlet 15 of cooling chamber 13.
The environmentally friendly structure of tourie 3 of the noise reduction being provided with, the tail gas of furnace of calcium carbide 1 is passed through from the environmentally friendly bottom of tourie 3 of noise reduction, inhaled Receive in room 11 in the presence of absorbing liquid 18, realize that the absorption to tail gas is handled, substantially reduce the exhaust gas constituents in tail gas and contain Granule foreign, through absorbing liquid 18 handle after exhaust gas flow, converged into via lower clapboard 10, upper spacer 9 and hush pipe 19 Cooling chamber 13, the first bloop 23 offered on lower clapboard 10, upper spacer 9 and hush pipe 19 and the second bloop 24 Under effect, decrease of noise functions is realized, it is to avoid noise pollution, and noise reduction is efficiently obvious, the tail gas gas converged into cooling chamber 13 Stream can absorb, waste gas is through a series of place of the tourie in the presence of heat exchanger tube 20 to the heat in exhaust gas flow After reason, preliminary purification processing and the cooling noise reduction of tail gas are realized, to realize that the recycling of the tail gas of furnace of calcium carbide 1 serves key Property effect, to realize that effective work of subsequent processing device provides reliable guarantee.
The first bloop 23 and the second bloop 24 offered respectively on upper spacer 9, lower clapboard 10 and hush pipe 19, With impedance complex formula silencing function, the noise that can be applied to different frequency is eliminated, wide using scope.
In the present embodiment, cyclone separator 4 is dry method dust cyclone separator 4, through the tail gas after the dedusting of cyclone separator 4 Dust content is not higher than 20~40g/Nm3, and spray scrubber 5 is wet sprinkling stuffing washing tower, after being washed through spray scrubber 5 Tail gas dust content be not higher than 1~10mg/Nm3, exhaust temperature is reached in the range of 150~180 DEG C, synthesis reactor 7 be tower Sodium bicarbonate aqueous solution is loaded with formula reactor, synthesis reactor 7, and the sodium bicarbonate aqueous solution concentration range being loaded with exists Between 35%~45%;Cyclone separator 4, spray scrubber 5 and the synthesis reactor 7 selected in the present embodiment can be used Commercially available prod, what its structural principle was known together by those skilled in the art, and therefore not to repeat here.
To cause acoustically effective more preferably, in the present embodiment, the inwall of upper spacer 9, lower clapboard 10 and environmental protection sound deadening tourie On be coated with sound absorption coating 22, sound absorption coating 22 can select acrylic acid modified porous silica silicon materials or the poly- diformazan of vinyl Radical siloxane material;The sound absorption coating 22 being provided with, can effectively improve the sound-deadening and noise-reducing function of the tourie, more preferable to realize Noise-reducing effect provides reliable guarantee.
In the present embodiment, absorbing liquid 18 is the sodium chloride or potassium chloride solution that concentration is not less than 30%, through absorption chamber 11 Absorbing liquid 18 absorb after exhaust temperature reach in the range of 300~400 DEG C;Absorbing liquid 18 is not less than 30% chlorine from concentration Change sodium or potassium chloride solution, while realizing that dust granules absorb, the part that can be removed in the tail gas of furnace of calcium carbide 1 is soluble Foreign gas, improves the absorption cleaning efficiency to tail gas, is reached for the tail gas after causing the absorbing liquid 18 through absorption chamber 11 to absorb Provide and be effectively ensured to 300~400 DEG C of temperature ranges.
For the increase tail gas of furnace of calcium carbide 1 and the contact area of absorbing liquid 18, improve to the absorption efficiency of the tail gas of furnace of calcium carbide 1 with inhaling Receive in quality, the present embodiment, the air inlet pipe outlet of environmental protection sound deadening tourie is connected with gas distributor 25.
To improve heat absorption efficiency of the heat exchanger tube 20 to air-flow so that the exhaust temperature after being cooled down through cooling chamber 13 reaches 250 In~280 DEG C of value range, the present embodiment, it is in that " bow " shape or spiral helicine arrangement are set that heat exchanger tube 20 is interior in cooling chamber 13, The exhausted water pearl condensed out in cooling chamber 13 through heat exchanger tube 20 can be disappeared by first offered on upper spacer 9 and lower clapboard 10 Sound hole 23 is flowed in absorption chamber 11, is finally together discharged with absorbing liquid 18.
To realize the real-time monitoring of the liquid level of absorbing liquid 18, to ensure that the liquid level of absorbing liquid 18 is in specified working range all the time In value, in the present embodiment, the inwall of environmental protection sound deadening tourie is provided with liquid level sensor 21, and liquid level sensor 21 is close to lower clapboard 10 are set, and liquid level sensor 21 is located at below the air inlet of hush pipe 19.
Tail gas recycling device of furnace of calcium carbide 1 based on said structure, in use, the furnace of calcium carbide 1 drawn through air-introduced machine 2 Tail gas, in tourie 3 environmentally friendly by noise reduction, dust granules absorption and cooling that can be preliminary to the progress of the tail gas of furnace of calcium carbide 1 be dropped Temperature so that the tail gas dustiness and temperature discharged after the environmentally friendly tourie 3 of noise reduction is handled are substantially reduced, while having noise reduction work( Can, the noise pollution of recovery process generation is reduced, is provided reliably to realize that the environment-friendly high-efficiency of the tail gas of furnace of calcium carbide 1 is recycled Ensure, spray washing is passed through after carrying out further dedusting into cyclone separator 4 from the tail gas after the environmentally friendly processing of tourie 3 of noise reduction Tower 5, carries out final tail gas clean-up, standard compliant after purification to be compressed using gas by gas compressor 6 so that gas Temperature, pressure and carbonomonoxide concentration therein reach reaction necessary requirement, with the bicarbonate contained in synthesis reactor 7 Sodium solution reaction generation sodium formate, so as to realize the environmentally friendly recycling of the tail gas of furnace of calcium carbide 1, it is to avoid directly by the tail of furnace of calcium carbide 1 Gas, which is discharged into air, causes environmental pollution and health of human body to injure, while avoiding the wasting of resources, realizes energy-conserving and environment-protective money Source is recycled.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme, it all should cover among the claim of the present invention and the scope of specification.

Claims (8)

1. a kind of calcium carbide stove exhaust recycle device, including furnace of calcium carbide, it is characterised in that:The offgas outlet of the furnace of calcium carbide leads to Cross tracheae and be sequentially communicated air-introduced machine, the environmentally friendly tourie of noise reduction, cyclone separator, spray scrubber, gas compressor and synthesis Reactor;
Upper spacer and lower clapboard are provided with the environmentally friendly tourie of the noise reduction, the upper spacer and the lower clapboard disappear the environmental protection The internal cavities of sound tourie are divided into absorption chamber, noise reduction chamber and cooling chamber, and the upper spacer and the lower clapboard and opened Provided with some first bloops;
Absorbing liquid is loaded with the absorption chamber, and the bottom of the environmentally friendly tourie of the noise reduction is provided with what is connected with the absorption chamber In feed tube and drain pipe, the noise reduction chamber absorption chamber and the hush pipe of the cooling chamber, institute are connected provided with least two The liquid level that air inlet of the hush pipe in the absorption chamber is stated higher than the absorbing liquid is set, and the hush pipe is positioned at described Part in noise reduction chamber offers and heat exchanger tube is provided with some second bloops, the cooling chamber, and the heat exchanger tube is through described Environmental protection sound deadening tourie is connected with refrigeration plant;
The bottom of the environmentally friendly tourie of the noise reduction is communicated with the air inlet of the absorption chamber, the top of the environmentally friendly tourie of the noise reduction Portion is communicated with the gas outlet of the cooling chamber;
Sodium bicarbonate aqueous solution is loaded with the synthesis reactor.
2. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:The absorbing liquid be concentration not Sodium chloride or potassium chloride solution less than 30%, absorbing liquid through the absorption chamber absorb after exhaust temperature reach 300~ In the range of 400 DEG C.
3. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:The quantity of the hush pipe is set For 2-4 roots, and the hush pipe is set in evenly distributed in the noise reduction chamber.
4. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:The heat exchanger tube is in described cold Indoor to be set in " bow " shape or helical form arrangement, the exhaust temperature after being cooled down through the cooling chamber reaches 250~280 DEG C of models In enclosing.
5. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:The environmental protection sound deadening tourie Inwall be provided with liquid level sensor, the liquid level sensor is set close to the lower clapboard, and the liquid level sensor is located at Below the air inlet of the hush pipe.
6. the calcium carbide stove exhaust recycle device according to claim any one of 1-5, it is characterised in that:On described every Sound absorption coating is coated with the inwall of plate, the lower clapboard and the environmental protection sound deadening tourie.
7. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:Removed through the cyclone separator Tail gas dust content after dirt is not higher than 20~40g/Nm3, through the spray scrubber wash after tail gas dust content it is not high In 1~10mg/Nm3, exhaust temperature reached in the range of 150~180 DEG C.
8. calcium carbide stove exhaust recycle device according to claim 1, it is characterised in that:In the synthesis reactor Sodium bicarbonate aqueous solution concentration range is between 35%~45%.
CN201710570284.1A 2017-07-13 2017-07-13 A kind of calcium carbide stove exhaust recycle device Pending CN107174940A (en)

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CN111437683A (en) * 2020-02-14 2020-07-24 辽宁工程技术大学 Industrial waste gas treatment method

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