CN110982554A - System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method - Google Patents
System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method Download PDFInfo
- Publication number
- CN110982554A CN110982554A CN201911352474.1A CN201911352474A CN110982554A CN 110982554 A CN110982554 A CN 110982554A CN 201911352474 A CN201911352474 A CN 201911352474A CN 110982554 A CN110982554 A CN 110982554A
- Authority
- CN
- China
- Prior art keywords
- acetylene
- tail gas
- carbide slag
- dry method
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 72
- 239000002893 slag Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 12
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 title claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 124
- 239000000428 dust Substances 0.000 claims abstract description 61
- 238000005338 heat storage Methods 0.000 claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003345 natural gas Substances 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 2
- 239000010802 sludge Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 17
- 238000004134 energy conservation Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000010285 flame spraying Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- PYKWJNWOTYHNJK-UHFFFAOYSA-N [Ca].C#C Chemical compound [Ca].C#C PYKWJNWOTYHNJK-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10H—PRODUCTION OF ACETYLENE BY WET METHODS
- C10H21/00—Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10H—PRODUCTION OF ACETYLENE BY WET METHODS
- C10H21/00—Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene
- C10H21/14—Ventilation means; Cooling devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10H—PRODUCTION OF ACETYLENE BY WET METHODS
- C10H21/00—Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene
- C10H21/16—Removing sludge from generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a system for treating tail gas containing acetylene carbide slag in a process for producing acetylene by a calcium carbide dry method, which solves the technical problems of low tail gas treatment efficiency and potential safety hazard in the treatment process in the prior art. The invention comprises a dust remover connected from a carbide slag tail gas source, a heat storage type incinerator connected from the dust remover, a hot air induced draft fan connected from the heat storage type incinerator, a normal temperature induced draft fan connected from the heat storage type incinerator, and a tail gas exhaust smoke window connected from the normal temperature induced draft fan; the air outlet of the hot air draught fan is connected with the inlet of the dust remover, and the heat storage type incinerator is connected with a natural gas supply pipe. The tail gas incineration system is simple in structure, scientific and reasonable in design and convenient to use, adopts heat accumulating type incineration equipment to incinerate the acetylene-containing carbide slag tail gas, maintains the incineration operation of the system by using the heat generated by the combustion of acetylene in the carbide slag tail gas, and achieves the purposes of high-efficiency treatment of the tail gas, low-cost operation of the system, energy conservation, environmental protection and safe emission of the tail gas.
Description
Technical Field
The invention belongs to the technical field of chemical industry, and particularly relates to a system for treating tail gas containing acetylene carbide slag in a process for producing acetylene by using a calcium carbide dry method.
Background
In a system for producing acetylene by a calcium carbide dry method, the calcium carbide slag discharged by a generator contains about 10 percent of water and trace calcium carbide particles which are not completely reacted, and simultaneously carries with some acetylene gas to enter tail end output equipment and a buffer storage bin of the calcium carbide slag, and the tail gas containing the acetylene calcium carbide slag can be discharged into the atmosphere after being subjected to harmless treatment, otherwise, the environment pollution can be caused. The traditional method for treating the acetylene-containing carbide slag tail gas has the following problems:
1. the temperature of the carbide slag dust gas is only slightly higher than the normal temperature, and the carbide slag dust gas contains some water vapor and a large amount of dust, is easy to agglomerate, and easily causes the blockage of pipelines, valves and filters of a dust gas treatment system.
2. Acetylene gas contained in the carbide slag dust gas is easy to accumulate and is extremely easy to explode; has great potential safety hazard.
3. The traditional treatment method can not completely remove acetylene in the acetylene-containing carbide slag tail gas, and the acetylene which is not completely removed is discharged into the atmosphere along with the tail gas, so that the pressure on environmental protection is still brought.
Therefore, the acetylene-containing carbide slag tail gas treatment system in the acetylene dry-method production process of carbide is designed, the heat accumulating type incineration equipment is adopted to incinerate the acetylene-containing carbide slag tail gas, the heat generated by the combustion of the acetylene in the carbide slag tail gas is utilized to maintain the incineration operation of the system, the purposes of efficient tail gas treatment, low-cost system operation and energy-saving, environment-friendly and safe tail gas emission are achieved, and the technical problem to be solved by technical personnel in the technical field is urgently needed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a tail gas processing system containing acetylene carbide slag in the acetylene dry method production technology of carbide, solves the technical problems of low tail gas processing efficiency and potential safety hazard in the processing process in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process of the calcium carbide comprises a dust remover connected from a carbide slag tail gas source, a heat storage type incinerator connected from the dust remover, a hot air induced draft fan connected from the heat storage type incinerator, a normal temperature induced draft fan connected from the heat storage type incinerator, and a tail gas discharge chimney connected from the normal temperature induced draft fan; the air outlet of hot-blast draught fan inserts the import of dust remover, the heat storage formula burns burning furnace and inserts and be used for the heat storage formula burns burning furnace and provides the natural gas supply pipe of fuel gas.
Further, heat accumulation formula burns burning furnace and includes burning the furnace body, it is equipped with at least three heat accumulator holding chamber in the burning furnace body, heat accumulator holding intracavity holding has the heat accumulator, and heat accumulator holding chamber sub-unit connection has blowback gas pipe, tail gas conveyer pipe and low temperature flue gas outer calandria, burning the chamber is established on burning furnace body's interior upper portion, and all heat accumulator holding chambers are linked together through burning the chamber.
Furthermore, the incineration chamber is internally provided with at least one flame spraying nozzle, and the natural gas supply pipe is connected with the flame spraying nozzle.
Furthermore, the upper part of the heat accumulator is communicated with a high-temperature flue gas external discharge pipe, and the high-temperature flue gas external discharge pipe is connected with the hot air induced draft fan.
Further, a program control valve is arranged on the high-temperature flue gas exhaust pipe.
Further, the blowback gas pipe is connected with an outlet of the dust remover.
Further, the tail gas conveying pipe is connected with an outlet of the dust remover.
Further, the low-temperature flue gas outer discharge pipe is connected with an inlet of the normal-temperature draught fan.
Furthermore, the heat accumulator accommodating cavities are three in number.
Furthermore, the blowback pipe, the tail gas conveying pipe and the low-temperature flue gas outer discharge pipe are all provided with program control valves.
Compared with the prior art, the invention has the following beneficial effects:
the tail gas incineration system is simple in structure, scientific and reasonable in design and convenient to use, adopts heat accumulating type incineration equipment to incinerate the acetylene-containing carbide slag tail gas, maintains the incineration operation of the system by using the heat generated by the combustion of acetylene in the carbide slag tail gas, and achieves the purposes of high-efficiency treatment of the tail gas, low-cost operation of the system, energy conservation, environmental protection and safe emission of the tail gas.
The heat storage type incinerator adopts a three-chamber switching mode. In each operation period, one heat accumulator accommodating cavity is in a high-temperature state, the temperature of tail gas entering the heat accumulator accommodating cavity is increased, and meanwhile, the temperature of the heat accumulator accommodating cavity is gradually reduced; a heat accumulator accommodating cavity is in a smoke exhaust state, the temperature of the heat accumulator accommodating cavity is gradually increased from low temperature, and meanwhile, the temperature of the smoke exhaust is reduced; one heat accumulator containing cavity is in a back flushing state, so that the part of tail gas passing through the combustion chamber but not entering the combustion chamber in the previous period is prevented from being directly discharged without high-temperature incineration. The three heat accumulator accommodating cavities are switched in sequence and alternately operated. The hot-blast draught fan draws wind to the dust remover front end for this department tail gas intensification from high temperature state heat accumulator holding chamber, can also prevent effectively that the dust caking from blockking up equipment such as pipeline, valve and filter when realizing preheating energy-conservation.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
FIG. 2 is a schematic view of a heat storage type incinerator according to the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a dust remover, 2-a heat storage type incinerator, 3-a hot air draught fan, 4-a normal temperature draught fan, 5-a tail gas exhaust window, 6-a natural gas supply pipe, 21-an incinerator body, 22-a heat accumulator, 23-a heat accumulator accommodating cavity, 24-a back blowing gas pipe, 25-a tail gas conveying pipe, 26-a low temperature flue gas exhaust pipe, 27-an incineration cavity, 28-a flame spray nozzle and 29-a high temperature flue gas exhaust pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, the acetylene-containing carbide slag tail gas treatment system in the acetylene dry-method production process of calcium carbide provided by the invention has the advantages of simple structure, scientific and reasonable design and convenient use, adopts heat accumulating type incineration equipment to incinerate the acetylene-containing carbide slag tail gas, maintains the incineration operation of the system by using the heat generated by the combustion of acetylene in the carbide slag tail gas, and realizes the purposes of high-efficiency treatment of tail gas, low-cost operation of the system, energy conservation, environmental protection and safe emission of tail gas. The device comprises a dust remover 1 connected from a carbide slag tail gas source, a heat storage type incinerator 2 connected from the dust remover 1, a hot air induced draft fan 3 connected from the heat storage type incinerator 2, a normal temperature induced draft fan 4 connected from the heat storage type incinerator 2, and a tail gas exhaust smoke window 5 connected from the normal temperature induced draft fan 4; the air outlet of the hot air induced draft fan 3 is connected to the inlet of the dust remover 1, and the heat storage type incinerator 2 is connected to a natural gas supply pipe 6 which is used for providing fuel gas for the heat storage type incinerator 2. The carbide slag tail gas source comprises tail gas discharged by a device for preparing acetylene by a dry method, dust gas discharged by carbide slag tail end output equipment and dust gas discharged by a carbide slag buffer bin.
The heat storage type incinerator 2 comprises an incinerator body 21, wherein at least three heat accumulator accommodating cavities 23 are formed in the incinerator body 21, heat accumulators 22 are accommodated in the heat accumulator accommodating cavities 23, the lower portions of the heat accumulator accommodating cavities 23 are connected with a back-blowing gas pipe 24, a tail gas conveying pipe 25 and a low-temperature flue gas outer discharge pipe 26, an incineration cavity 27 is formed in the inner upper portion of the incinerator body 21, and all the heat accumulator accommodating cavities 23 are communicated through the incineration cavity 27. The heat accumulator holding cavity 23 is three, the blowback pipe 24 is connected with the outlet of the dust remover 1, the tail gas conveying pipe 25 is connected with the outlet of the dust remover 1, and the low-temperature flue gas outer discharge pipe 26 is connected with the inlet of the normal-temperature draught fan 4.
The heat storage type incinerator adopts a three-chamber switching mode. In each operation period, one heat accumulator accommodating cavity is in a high-temperature state, the temperature of tail gas entering the heat accumulator accommodating cavity is increased, and meanwhile, the temperature of the heat accumulator accommodating cavity is gradually reduced; a heat accumulator accommodating cavity is in a smoke exhaust state, the temperature of the heat accumulator accommodating cavity is gradually increased from low temperature, and meanwhile, the temperature of the smoke exhaust is reduced; one heat accumulator containing cavity is in a back flushing state, so that the part of tail gas passing through the combustion chamber but not entering the combustion chamber in the previous period is prevented from being directly discharged without high-temperature incineration. The three heat accumulator accommodating cavities are switched in sequence and alternately operated. The hot-blast draught fan draws wind to the dust remover front end for this department tail gas intensification from high temperature state heat accumulator holding chamber, can also prevent effectively that the dust caking from blockking up equipment such as pipeline, valve and filter when realizing preheating energy-conservation.
At least one flaming burner 28 is arranged in the incineration cavity 27, and the natural gas supply pipe 6 is connected with the flaming burner 28. The heat accumulator accommodating cavity 23 is communicated with a high-temperature flue gas outer discharge pipe 29, and the high-temperature flue gas outer discharge pipe 29 is connected with the hot air induced draft fan 3. The blowback pipe 24, the tail gas delivery pipe 25, the low-temperature flue gas external discharge pipe 26 and the upper high-temperature flue gas external discharge pipe 29 are all provided with program control valves. The function switching of the three heat accumulator holding cavities is realized by the program control valve.
According to the invention, acetylene gas in the gas is treated by high-temperature incineration of carbide slag dust gas through heat storage type incineration, so that environment-friendly discharge is achieved. Meanwhile, the heat released by combustion of acetylene contained in the carbide slag dust gas is utilized to preheat the carbide slag dust gas, so that the temperature of the carbide slag dust gas is increased to be above a dew point, the phenomenon that dust and water vapor are agglomerated due to low temperature is avoided, and the problem of blockage of the carbide slag dust gas in pipelines, valves and filters is solved. The carbide slag dust gas after heating and drying is filtered to recover the carbide slag for reuse, and the dust-removed gas also prevents the dust in the carbide slag dust gas from blocking the heat accumulator of the incinerator, thereby prolonging the service life of the incinerator.
The heat-storage type incinerator can achieve higher combustion temperature by using the heat storage function of the heat accumulator and consuming little or no extra fuel, and can process low-calorific-value waste gas containing a small amount of combustible gas. The operation cost is greatly reduced.
According to the heat accumulating type incinerator, a part of hot flue gas with higher temperature returns to the inlet of the system to be mixed with the carbide slag exhaust gas to be treated, so that the temperature of the dry acetylene carbide slag conveying exhaust gas is increased, caking is avoided, the concentration of acetylene in the dry acetylene carbide slag conveying exhaust gas is diluted, and the explosion risk of the dry acetylene carbide slag conveying exhaust gas is substantially reduced; and the other part of the cold flue gas with lower temperature discharged from the regenerative thermal oxidizer is directly discharged into the atmosphere through a chimney. The method has the characteristics of low operation cost, safety, environmental protection, energy conservation and the like.
The carbide slag dust gas is processed at high temperature through the heat storage type incinerator capable of exhausting gas in sections, so that the requirement of environmental protection discharge is met. Meanwhile, the heat released by combustion of acetylene in the carbide slag dust gas is utilized to preheat the carbide slag dust gas to be treated, so that the blocking of water vapor and dust due to low temperature caking is avoided. In addition, the acetylene content in the carbide slag dust gas is reduced by mixing the low-oxygen-content flue gas subjected to the heat accumulating type incineration treatment into the carbide slag dust gas to be treated, so that the acetylene content in the carbide slag dust gas is reduced to 50% of the lower limit of the explosion limit, and the explosion risk of the carbide slag dust gas containing acetylene is essentially avoided.
Although the carbide slag dust gas from the carbide slag tail end output equipment and the buffering bin contains part of combustible acetylene gas, the acetylene content is low, and a conventional direct incineration treatment method is used, so that the explosion risk is avoided, and a large amount of fuel needs to be supplemented; the invention utilizes the heat storage function of the heat accumulator to cool the burned flue gas and recover heat, utilizes the recovered heat to preheat the gas before burning treatment, can reach higher treatment temperature by using little or even no extra fuel, completes the high-temperature harmless treatment of the carbide slag dust gas, and can greatly save the fuel consumption compared with the direct burning treatment.
The flue gas after the heat accumulating type incineration treatment is discharged in two sections, wherein the hot flue gas with higher temperature returns to the inlet of the filter and is mixed with the carbide slag dust gas to be treated, and the mixed gas is raised to be above the dew point, so that the problems of agglomeration and blockage caused by water vapor and dust condensation at lower temperature in the carbide slag dust gas in the past are avoided. The heated gas is filtered by conventional bag-type dust removal equipment, carbide slag dust in the gas is filtered for reuse, and dust-free gas after dust removal enters the heat accumulating type incinerator, so that the dust is prevented from blocking the heat accumulator, the regeneration period of the heat accumulator is prolonged, and the service life of the heat accumulator is prolonged.
The hot flue gas mixed with the carbide slag dust gas and having lower oxygen content can not only improve the temperature of the exhaust gas to be treated, but also dilute the acetylene in the carbide slag dust gas, and can reduce the acetylene content in the carbide slag dust gas to 50 percent of the lower limit of the acetylene explosion by controlling the mixing proportion, thereby essentially reducing the explosion risk.
The flue gas after high-temperature combustion in the regenerative combustion furnace accumulates heat in the heat accumulator through heat exchange with the heat accumulator, and the heat is utilized to preheat the gas to be treated so as to achieve the aim of saving energy. The low-temperature flue gas discharged from the regenerative combustion furnace is cooled to a lower level and can be directly discharged into the atmosphere. And the conventional direct incineration treatment of the discharged flue gas has high temperature, a complex waste heat recovery system is required to be arranged to reduce energy consumption, the investment is large, the operation cost is high, and products such as steam generated by recovery cannot necessarily find suitable downstream application.
The invention fully utilizes the heat generated by acetylene combustion in acetylene-containing carbide slag dust gas, rough calculation shows that the continuous combustion operation of the heat accumulating type incinerator can be maintained only by the heat generated by acetylene combustion as long as the acetylene content (2%) is not too high in carbide slag conveying and discharging gas, only a small amount of additional fuel is needed under special working conditions such as starting and stopping, and under other normal conditions, the additional fuel is basically not needed, so that the operation cost is greatly reduced. Has the characteristics of high treatment efficiency of carbide slag dust gas, low operating cost, safety, energy conservation, environmental protection and the like.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.
Claims (10)
1. The system for treating the tail gas containing acetylene and acetylene sludge in the process of producing acetylene by using a calcium carbide dry method is characterized in that: the device comprises a dust remover (1) connected from a carbide slag tail gas source, a heat storage type incinerator (2) connected from the dust remover (1), a hot air induced draft fan (3) connected from the heat storage type incinerator (2), a normal temperature induced draft fan (4) connected from the heat storage type incinerator (2), and a tail gas exhaust smoke window (5) connected from the normal temperature induced draft fan (4); the air outlet of the hot air induced draft fan (3) is connected to the inlet of the dust remover (1), and the heat storage type incinerator (2) is connected to a natural gas supply pipe (6).
2. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 1, characterized in that: heat accumulation formula burns burning furnace (2) including burning furnace body (21), it is equipped with at least three heat accumulator holding chamber (23) in burning furnace body (21), heat accumulator (22) have been put in heat accumulator holding chamber (23), and heat accumulator holding chamber (23) sub-unit connection has blowback gas pipe (24), tail gas conveyer pipe (25) and low temperature flue gas outer calandria (26), burning furnace body (21) the interior upper portion of establishing chamber (27) of burning, all heat accumulator holding chambers (23) are linked together through burning chamber (27).
3. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: at least one flaming burner (28) is arranged in the incineration cavity (27), and the natural gas supply pipe (6) is connected with the flaming burner (28).
4. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: the heat accumulator accommodating cavity (23) is communicated with a high-temperature flue gas external discharge pipe (29), and the high-temperature flue gas external discharge pipe (29) is connected with the hot air induced draft fan (3).
5. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: and a program control valve is arranged on the high-temperature flue gas external discharge pipe (29).
6. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: the back blowing gas pipe (24) is connected with the outlet of the dust remover (1).
7. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: and the tail gas conveying pipe (25) is connected with an outlet of the dust remover (1).
8. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: the low-temperature flue gas external discharge pipe (26) is connected with an inlet of the normal-temperature draught fan (4).
9. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: three heat accumulator accommodating cavities (23) are provided.
10. The acetylene-containing carbide slag tail gas treatment system in the acetylene dry method production process according to claim 2, characterized in that: and the back-blowing gas pipe (24), the tail gas conveying pipe (25) and the low-temperature flue gas external discharge pipe (26) are all provided with program control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911352474.1A CN110982554A (en) | 2019-12-25 | 2019-12-25 | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911352474.1A CN110982554A (en) | 2019-12-25 | 2019-12-25 | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110982554A true CN110982554A (en) | 2020-04-10 |
Family
ID=70075246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911352474.1A Pending CN110982554A (en) | 2019-12-25 | 2019-12-25 | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110982554A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10176819A (en) * | 1996-12-16 | 1998-06-30 | Tokyo Gas Co Ltd | Regenerative waste liquor incinerator |
| JP2001254921A (en) * | 2000-03-14 | 2001-09-21 | Tatsuo Yonede | Exhaust gas recombustion system |
| JP2002018223A (en) * | 2000-07-11 | 2002-01-22 | Kawasaki Steel Corp | Method for cleaning filtering and dust collecting equipment and method for treating exhaust gas |
| US20030037714A1 (en) * | 2001-08-22 | 2003-02-27 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd) | Method for combustion treatment of combustible waste and apparatus therefor |
| JP2006002746A (en) * | 2004-06-18 | 2006-01-05 | Obara Yaichi | Biomass dry distillation gas combustion/heat exchanging generation apparatus |
| CN1995821A (en) * | 2006-11-24 | 2007-07-11 | 华南理工大学 | High-temperature air burning method for garbage and device therefor |
| CN102506435A (en) * | 2011-11-17 | 2012-06-20 | 四川天一科技股份有限公司 | Tail gas recovery method of device for manufacturing methanol and dimethyl ether by using tail gas of calcium carbide furnace and yellow phosphorus tail gas purified by using variable-temperature and variable-pressure adsorption method |
| CN104807021A (en) * | 2014-01-26 | 2015-07-29 | 北京航天动力研究所 | Process and system for treating vinyl cyanide tail gas by high temperature burning method |
| CN107166977A (en) * | 2017-06-23 | 2017-09-15 | 江苏省冶金设计院有限公司 | A kind of closed vessel furnace furnace gas is reclaimed and cleaning treatment system |
| CN206692332U (en) * | 2017-04-20 | 2017-12-01 | 神雾环保技术股份有限公司 | System for producing calcium carbide |
| KR20180085147A (en) * | 2017-01-18 | 2018-07-26 | 최동민 | Drying and combustion systems for wastes containing vinyl |
| CN208732658U (en) * | 2018-05-31 | 2019-04-12 | 平原中德泰兴环保科技装备有限公司 | A kind of industrial waste processing unit |
| CN211847828U (en) * | 2019-12-25 | 2020-11-03 | 中国成达工程有限公司 | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method |
-
2019
- 2019-12-25 CN CN201911352474.1A patent/CN110982554A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10176819A (en) * | 1996-12-16 | 1998-06-30 | Tokyo Gas Co Ltd | Regenerative waste liquor incinerator |
| JP2001254921A (en) * | 2000-03-14 | 2001-09-21 | Tatsuo Yonede | Exhaust gas recombustion system |
| JP2002018223A (en) * | 2000-07-11 | 2002-01-22 | Kawasaki Steel Corp | Method for cleaning filtering and dust collecting equipment and method for treating exhaust gas |
| US20030037714A1 (en) * | 2001-08-22 | 2003-02-27 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd) | Method for combustion treatment of combustible waste and apparatus therefor |
| JP2006002746A (en) * | 2004-06-18 | 2006-01-05 | Obara Yaichi | Biomass dry distillation gas combustion/heat exchanging generation apparatus |
| CN1995821A (en) * | 2006-11-24 | 2007-07-11 | 华南理工大学 | High-temperature air burning method for garbage and device therefor |
| CN102506435A (en) * | 2011-11-17 | 2012-06-20 | 四川天一科技股份有限公司 | Tail gas recovery method of device for manufacturing methanol and dimethyl ether by using tail gas of calcium carbide furnace and yellow phosphorus tail gas purified by using variable-temperature and variable-pressure adsorption method |
| CN104807021A (en) * | 2014-01-26 | 2015-07-29 | 北京航天动力研究所 | Process and system for treating vinyl cyanide tail gas by high temperature burning method |
| KR20180085147A (en) * | 2017-01-18 | 2018-07-26 | 최동민 | Drying and combustion systems for wastes containing vinyl |
| CN206692332U (en) * | 2017-04-20 | 2017-12-01 | 神雾环保技术股份有限公司 | System for producing calcium carbide |
| CN107166977A (en) * | 2017-06-23 | 2017-09-15 | 江苏省冶金设计院有限公司 | A kind of closed vessel furnace furnace gas is reclaimed and cleaning treatment system |
| CN208732658U (en) * | 2018-05-31 | 2019-04-12 | 平原中德泰兴环保科技装备有限公司 | A kind of industrial waste processing unit |
| CN211847828U (en) * | 2019-12-25 | 2020-11-03 | 中国成达工程有限公司 | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method |
Non-Patent Citations (1)
| Title |
|---|
| 王同章 , 王立群 , 林长华 , 华威: "电石炉粉尘焚烧炉的研究", 江苏大学学报(自然科学版), no. 03, 15 May 1990 (1990-05-15) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109458622B (en) | Environment-friendly energy-saving discharge system for incineration of acrylonitrile salt-containing organic waste liquid and waste gas | |
| CN109458623B (en) | High-salt-content high-chlorine-content organic waste liquid incineration environment-friendly energy-saving discharge system | |
| CN101837365A (en) | Integrated method and system of active carbon regeneration and hazardous waste incineration | |
| CN206469273U (en) | A kind of organic waste gas treatment device | |
| CN108036665A (en) | Carbon baking furnace flue gas pollutant thermal accumulating incinerator and its processing method | |
| CN210219809U (en) | Explosion-proof type RTO processing apparatus | |
| CN101037193A (en) | Technology and device for producing yellow Phosphorus by electric oven process | |
| CN101352639B (en) | Organic waste gas treatment system | |
| CN108317526A (en) | A kind of organic waste gas treatment device | |
| CN110425548A (en) | Chemical industry saliferous raffinate incineration system and its burning process | |
| CN211847828U (en) | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method | |
| CN102519049A (en) | Low energy consumption system for purifying and incinerating harmful gases | |
| CN208253609U (en) | A kind of printing machine VOCs concentration paddy electricity balance RTO processing system | |
| CN110982554A (en) | System for treating tail gas containing acetylene carbide slag in process of producing acetylene by calcium carbide dry method | |
| CN102519047A (en) | Hazardous waste harmless incineration system with low energy consumption | |
| CN206831521U (en) | A kind of Energy-efficient Regenerative Type incinerator | |
| CN213977536U (en) | Novel secondary smoke recycling and dry distillation device for carbonization rotary kiln | |
| CN202598547U (en) | Waste heat recovering regenerative furnace | |
| CN2802286Y (en) | Verticle boiler using water as fuel | |
| CN210861131U (en) | Purification treatment device for tar tail gas and asphalt smoke | |
| CN211450931U (en) | Flameless energy-saving heat accumulating type incinerator system | |
| CN220750142U (en) | Equipment for thermal oxidation treatment of high-concentration organic waste gas | |
| CN104003385A (en) | Energy gradient utilization and saving device for SLEP activating furnace and method application thereof | |
| CN214791172U (en) | RTO blowback economizer | |
| CN215766534U (en) | Tail gas waste heat recycling device of active carbon carbonization furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |