CN112604445B - Flue gas desulfurization, denitrification and dust removal integrated equipment for coal-fired ceramic tunnel kiln - Google Patents
Flue gas desulfurization, denitrification and dust removal integrated equipment for coal-fired ceramic tunnel kiln Download PDFInfo
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Abstract
The invention discloses a coal-fired ceramic tunnel kiln flue gas desulfurization, denitrification and dust removal integrated device, which belongs to the technical field of flue gas treatment, wherein heated double collecting wires are mixed with flue gas to assist in flue gas purification, at the initial stage of mixing the double collecting wires with the flue gas, the double collecting wires absorb water vapor in the flue gas to exchange heat with the flue gas, and absorb flue gas particles through a primary adsorption net layer, the temperature of the double collecting wires is gradually reduced, the internal air pressure is reduced, meanwhile, due to internal expansion of water absorption, secondary extension attaching wires in the double collecting wires are released outwards, and the purification products are adsorbed and covered on the surface of the primary adsorption net layer, so that the purification products are not easy to flow away from the flue gas, other molecules are not easy to block, and the high-efficiency purification of the flue gas is ensured.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to flue gas desulfurization, denitrification and dust removal integrated equipment for a coal-fired ceramic tunnel kiln.
Background
The tunnel kiln is a kiln similar to a tunnel and internally provided with delivery vehicles such as kiln cars and the like, built by refractory materials, heat insulation materials and building materials, and is modern continuous-firing thermal equipment. The tunnel kiln is widely used for roasting production of ceramic products and also has application in metallurgical industries such as grinding materials and the like. Because the construction cost and the fuel cost of the coal-fired kiln are low, and the coal resources in China are rich, widely distributed and can be obtained from local materials, the coal-fired tunnel kiln is widely applied, and therefore, the smoke pollution generated by the combustion of the coal-fired kiln is a research subject which is concerned about in the aspect of environmental protection. The nitrogen oxides and the sulfur oxides in the flue gas are one of the main sources of air pollution.
Known exhaust gas desulfurization and denitration techniques include techniques such as PAFP, ACFP, pyrolusite method, electron beam irradiation method, pulse corona method, gypsum wet method, catalytic oxidation method, and microbial degradation method. Electron beam irradiation method: after the dust is removed, the boiler flue gas is cooledThe tower is cooled to 65-70 ℃ by spray water in the tower. Before the flue gas enters the reactor, corresponding ammonia gas is injected according to stoichiometric number. In the reactor, the flue gas is irradiated by high-energy electron beams, and N in the flue gas 2 、O 2 Performing radiation reaction with water vapor to generate a large amount of active substances such as ions, free radicals, atoms, electrons and atoms and molecules in various excited states, which can remove SO in flue gas 2 And NO X Oxidation to SO 3 And NO 2 . These high-priced sulfur oxides and nitrogen oxides react with water vapor to generate sulfuric acid and nitric acid in the form of mist, and these acids further react with ammonia injected into the reactor in advance to generate ammonium sulfate and ammonium nitrate. Finally, collecting gas sol-like ammonium sulfate and ammonium nitrate by using an electrostatic precipitator, and discharging the purified flue gas through a chimney, wherein the process is a dry process and does not generate waste water and waste residues; the desulfurization and denitrification can be simultaneously carried out, and the desulfurization rate of more than 90 percent and the denitrification rate of more than 80 percent can be achieved; the system is simple, the operation is convenient, and the process is easy to control.
The final products of the above process are aerosol ammonium sulfate and ammonium nitrate, firstly, in the purification process, along with the gradual production of the two, the aerosol ammonium sulfate and the ammonium nitrate are dispersedly mixed in the flue gas, which can obstruct the circulation of residual oxysulfide, nitric oxide, water vapor and the like in the flue gas, and influence the reaction efficiency, so that the purification efficiency of the flue gas is gradually reduced, and in addition, at the later stage, the separation between the aerosol ammonium sulfate and the ammonium nitrate and the purified flue gas also increases the complexity of the whole process.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a coal-fired ceramic tunnel kiln flue gas desulfurization, denitrification and dust removal integrated device, which is used for assisting flue gas purification by mixing a heated double collecting wire with flue gas, wherein in the initial stage of mixing the double collecting wire with the flue gas, the double collecting wire absorbs water vapor in the flue gas, exchanges heat with the flue gas, and absorbs residual smoke particles in the flue gas through a primary adsorption net layer, the temperature of the double collecting wire is gradually reduced, so that the internal air pressure is reduced, meanwhile, due to internal expansion of water absorption, a secondary extension attaching wire in the double collecting wire is released outwards under the combined action of the double collecting wire and the flue gas, and adsorbs purification products (aerosol ammonium sulfate and ammonium nitrate) and covers the surface of the primary adsorption net layer, so that the purification products are not easy to flow away from the flue gas, other molecules are not easy to flow, high-efficiency purification of the flue gas is ensured, on the other hand, the secondary extension attaching wire with the purification products covers the surface of the primary adsorption net layer, the particles in the primary adsorption net layer can be effectively reduced, the loss of the particles in the primary adsorption process can be effectively reduced, the purification products can be conveniently adsorbed by using the double collecting wire as impurities in the purification process, the later stage of the flue gas can be sequentially separated from the smoke particles, and the smoke particles can be continuously provided for the purification process of the purification products.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A flue gas desulfurization, denitrification and dust removal integrated device for a coal-fired ceramic tunnel kiln comprises a reactor body, wherein an electronic accelerator is installed at the outer end of the reactor body, a conveying pipeline is fixedly connected to the air inlet end of the reactor body, the end, far away from the reactor body, of the conveying pipeline is fixedly connected with the air outlet end of a cooling tower, the air inlet end of the cooling tower is fixedly connected with an air inlet pipe, an ammonia spraying control valve is installed on the conveying pipeline, a heat-conducting auxiliary box is arranged on the outer side of the air inlet pipe, a pipe channel is formed in the heat-conducting auxiliary box, the air inlet pipe penetrates through the pipe channel and is fixedly connected with the inner wall of the pipe channel, a dual material collecting wire is filled in the heat-conducting auxiliary box, a feeding pipe and a feeding pipe which are communicated with the interior of the heat-conducting auxiliary box are fixedly connected to the outer end of the heat-conducting auxiliary box, and one end, far away from the heat-conducting auxiliary box, of the feeding pipe is fixedly connected with the conveying pipeline, the double-layer collecting wire absorbs water vapor in the flue gas at the initial stage of mixing the double-layer collecting wire and the flue gas to exchange heat with the flue gas, and absorbs residual smoke dust particles in the flue gas through a primary adsorption net layer, the temperature of the double-layer collecting wire is gradually reduced, so that the internal air pressure is reduced, meanwhile, because the water is absorbed to generate internal expansion, the secondary extension attaching wire in the double-layer collecting wire is released outwards under the combined action of the double-layer collecting wire and the flue gas, and absorbs purification products (aerosol ammonium sulfate and ammonium nitrate) and covers the surface of the primary adsorption net layer, on one hand, the purification products are not easy to flow away from the flue gas, and other molecules are not easy to block from flowing, the invention takes the double collecting wires as the impurity adsorption carrier in the smoke purification process to sequentially adsorb the smoke particles and the purification products, thereby ensuring the continuous and efficient purification process of the smoke and providing convenience for the separation of the smoke and the purification products in the later period.
Further, the dual silk that gathers materials includes the carrier mantle fiber, the outer end fixedly connected with one-level adsorption net layer and a plurality of fluff that absorbs water of carrier mantle fiber, it is a plurality of fluff evenly distributed absorbs the inside on one-level adsorption net layer, and the carrier mantle fiber plays the design effect, makes dual silk that gathers materials wholly be soft filiform, conveniently sends into the reactor body along with the air current, and the fluff that absorbs water can absorb the vapor in the flue gas, and tiny smoke and dust granule in the flue gas can be along with the air current gets into in the one-level adsorption net layer, is adsorbed by the interception of one-level adsorption net layer.
Furthermore, the outer end of the primary adsorption net layer is fixedly connected with an expansion inner core, an opening air bag layer is sleeved on the outer side of the expansion inner core, the opening end of the opening air bag layer is fixedly connected with the outer end of the expansion inner core, and ammonia gas is filled between the expansion inner core and the opening air bag layer.
Furthermore, the outer side of the opening air bag layer is sleeved with a hard mesh enclosure, the hard mesh enclosure is fixedly connected with the outer end of the primary adsorption mesh layer, a plurality of secondary extension attaching wires are filled between the hard mesh enclosure and the opening air bag layer, the secondary extension attaching wires are made of water absorption fibers and can absorb water vapor in the smoke, on one hand, the purification product is conveniently adsorbed, on the other hand, sulfur oxide and nitrogen oxide in the smoke can directly react with water on the secondary extension attaching wires, and finally, the aerosol-like purification product is generated on the secondary extension attaching wires, so that the efficient collection of the purification product is realized.
Furthermore, the second-stage extension attached wires comprise light hollow balls, the outer ends of the light hollow balls are fixedly connected with attached rubber wires, the diameters of the light hollow balls are larger than the aperture diameters of meshes of the hard mesh enclosure, when the second-stage extension attached wires are released outwards, the fine attached rubber wires can extend outwards through the hard mesh enclosure, the light hollow balls stay on the inner side of the hard mesh enclosure, and finally the second-stage extension attached wires are distributed on the surface of the hard mesh enclosure in a hedgehog shape in a diffusion mode, so that the second-stage extension attached wires are conveniently contacted with smoke, purified products are adsorbed, the first-stage adsorption mesh layer is covered, and loss of smoke particles in the first-stage adsorption mesh layer is reduced.
Furthermore, the outer end of the expansion inner core is fixedly connected with a plurality of uniformly distributed membrane breaking needles, the membrane breaking needles are not in contact with the opening air bag layer in an initial state, the initial state refers to the unexpanded state of the expansion inner core, and ammonia gas can be normally stored between the opening air bag layer and the expansion inner core.
Furthermore, the inside fixedly connected with temperature-sensing ware and a plurality of evenly distributed heater strip of heat conduction auxiliary material case.
A coal-fired ceramic tunnel kiln flue gas desulfurization, denitrification and dust removal integrated equipment comprises the following use methods:
s1, introducing sufficient double-collecting wires into a heat-conducting auxiliary box, and preheating the interior of the heat-conducting auxiliary box;
s2, introducing the dedusted flue gas into an air inlet pipe, introducing the flue gas into a cooling tower, cooling in the cooling tower, opening an ammonia spraying control valve to inject ammonia gas into a conveying pipeline, opening a one-way valve on a feeding pipe, and feeding the heated dual-material collecting wires into the conveying pipeline through the feeding pipe;
and S3, mixing the flue gas, the ammonia gas and the dual-collecting wire in a conveying pipeline, and allowing the mixture to enter a reactor body together to react by irradiation of high-energy electron beams of an electron accelerator.
Further, the preheating temperature in the step S1 is 85-90 ℃.
Further, the temperature of the cooling in the step S2 is 60-65 ℃.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, the heated dual collecting wires are mixed with the flue gas to assist in flue gas purification, at the initial stage of mixing the dual collecting wires with the flue gas, the dual collecting wires absorb water vapor in the flue gas and exchange heat with the flue gas, residual smoke dust particles in the flue gas are absorbed through the primary adsorption net layer, the temperature of the dual collecting wires is gradually reduced, so that the internal air pressure is reduced, meanwhile, internal expansion is caused due to water absorption, secondary extension attaching wires in the dual collecting wires are released outwards under the combined action of the dual collecting wires and adsorb purification products (aerosol ammonium sulfate and ammonium nitrate), and the purification products are covered on the surface of the primary adsorption net layer.
(2) The dual silk that gathers materials includes the carrier mantle fiber, the outer end fixedly connected with one-level adsorption network layer and a plurality of fluff that absorbs water of carrier mantle fiber, a plurality of fluff evenly distributed that absorb water in the inside of one-level adsorption network layer, the carrier mantle fiber plays the design effect, make dual silk that gathers materials wholly be soft filiform, conveniently send into the reactor body along with the air current, the fluff that absorbs water can absorb the vapor in the flue gas, tiny smoke and dust granule in the flue gas can be along with the air current gets into in the one-level adsorption network layer, it adsorbs to be intercepted by the one-level adsorption network layer.
(3) The outer end fixedly connected with inflation inner core of one-level adsorption network layer, the outside cover of inflation inner core has opening gasbag layer, the open end of opening gasbag layer and the outer end fixed connection of inflation inner core, it has the ammonia to fill between inflation inner core and the opening gasbag layer, the outer end fixedly connected with of inflation inner core breaks membrane needle a plurality of evenly distributed, break membrane needle and opening gasbag layer mutually contactless under initial condition, this initial condition indicates inflation inner core unexpanded state, the ammonia can normally be stored between opening gasbag layer and inflation inner core.
(4) The outside cover of opening gasbag layer has the stereoplasm screen panel, the outer end fixed connection of stereoplasm screen panel and one-level adsorption net layer, it attaches the silk to fill to have a plurality of second grade extensions between stereoplasm screen panel and the opening gasbag layer, the second grade is extended to attach the silk and is adopted absorbent fiber to make, can absorb the vapor in the flue gas, on the one hand, conveniently adsorb the purification product, on the other hand, oxysulfide and nitrogen oxide in the flue gas can directly extend with the second grade and attach the moisture reaction on the silk, finally generate the colloidal purification product of gas solution on the second grade extension attaches the silk, thereby realize the high-efficient collection to the purification product.
(5) The second-stage extension attached wires comprise light hollow balls, the outer ends of the light hollow balls are fixedly connected with attached rubber wires, the diameters of the light hollow balls are larger than the aperture diameters of the meshes of the hard net covers, when the second-stage extension attached wires are released outwards, the fine attached rubber wires can extend outwards through the hard net covers, the light hollow balls stay on the inner sides of the hard net covers, finally the second-stage extension attached wires are distributed on the surfaces of the hard net covers in a hedgehog shape in a diffusion mode, contact with smoke gas is facilitated, purified products are adsorbed, the first-stage adsorption net layers are covered, and loss of smoke particles in the first-stage adsorption net layers is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a dual-collecting wire of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of a partial structure of the dual-concentration filament of the present invention after absorbing water and cooling;
FIG. 5 is a schematic view of a portion of the secondary extension appendage of the present invention after release;
FIG. 6 is a schematic view of the structure of the secondary extension wire of the present invention.
The reference numbers in the figures illustrate:
the device comprises a reactor body 1, an electronic accelerator 2, a conveying pipeline 3, an ammonia spraying control valve 4, a cooling tower 5, an air inlet pipe 6, a heat conduction auxiliary box 7, a dual material collecting wire 8, a carrier soft wire 81, water absorption fluff 82, a primary adsorption net layer 83, an expansion inner core 84, a membrane breaking needle 85, an open air bag layer 86, a hard net cover 87, a secondary extension attached wire 88, a light hollow ball 8801, an adhesive wire 8802, a feeding pipe 9 and a feeding pipe 10.
Detailed Description
The drawings in the embodiments of the invention will be incorporated below; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person of ordinary skill in the art without making any creative effort; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.
Example (b):
referring to fig. 1, a flue gas desulfurization, denitrification and dust removal integrated device for a coal-fired ceramic tunnel kiln comprises a reactor body 1, an electron accelerator 2 is installed at the outer end of the reactor body 1, a conveying pipeline 3 is fixedly connected to the air inlet end of the reactor body 1, the air outlet end of a cooling tower 5 is fixedly connected to one end, away from the reactor body 1, of the conveying pipeline 3, an air inlet pipe 6 is fixedly connected to the air inlet end of the cooling tower 5, an ammonia injection control valve 4 is installed on the conveying pipeline 3, a heat-conducting auxiliary box 7 is arranged on the outer side of the air inlet pipe 6, a pipe channel is formed in the heat-conducting auxiliary box 7, the air inlet pipe 6 penetrates through the pipe channel and is fixedly connected with the inner wall thereof, a dual-collecting wire 8 is filled in the heat-conducting auxiliary box 7, in the flue gas purification process, the flue gas flows through the inboard of heat conduction auxiliary box 7 through intake pipe 6, can make the realization utilize the flue gas heat to heat conduction auxiliary box 7 and dual album of material silk 8 and heat, realize thermal make full use of, flue gas temperature after the heat exchange has the reduction of certain degree, the cost loss of flue gas cooling process in the cooling tower 5 has also been reduced, heat conduction auxiliary box 7's outer end fixedly connected with and heat conduction auxiliary box 7 inside communicating filling tube 9 and conveying pipe 10, conveying pipe 10 keeps away from heat conduction auxiliary box 7's one end and transfer piping 3 fixed connection, and conveying pipe 10 communicates with each other with transfer piping 3 is inside, fixedly connected with check valve on the conveying pipe 10.
Referring to fig. 2 and 3, the dual collecting filament 8 includes a carrier filament 81, a first-stage adsorption mesh layer 83 and a plurality of water-absorbing fluff 82 are fixedly connected to an outer end of the carrier filament 81, the water-absorbing fluff 82 is uniformly distributed inside the first-stage adsorption mesh layer 83, the first-stage adsorption mesh layer 83 is formed by winding a plurality of synthetic fibers in a staggered manner, large pores are formed inside the first-stage adsorption mesh layer 83, water molecules and smoke particles can conveniently enter the first-stage adsorption mesh layer 83, the carrier filament 81 is made of a high-temperature-resistant rubber material, and has a shaping effect on the first-stage adsorption mesh layer 83, so that the dual collecting filament 8 is integrally in a soft filament shape, the dual collecting filament is conveniently sent into the reactor body 1 along with an air flow, the water-absorbing fluff 82 can absorb water vapor in the flue gas, and fine smoke particles in the flue gas can enter the first-stage adsorption mesh layer 83 along with the air flow and are intercepted and adsorbed by the first-stage adsorption mesh layer 83.
Referring to fig. 3, an outer end of the primary adsorption mesh layer 83 is fixedly connected with an expansion core 84, the expansion core 84 is made of a water-swellable rubber material, an open air bag layer 86 is sleeved outside the expansion core 84, an open end of the open air bag layer 86 is fixedly connected with an outer end of the expansion core 84, ammonia gas is filled between the expansion core 84 and the open air bag layer 86, a plurality of uniformly distributed membrane breaking needles 85 are fixedly connected to an outer end of the expansion core 84, the membrane breaking needles 85 and the open air bag layer 86 are not in contact with each other in an initial state, the initial state refers to an unexpanded state of the expansion core 84, ammonia gas can be normally stored between the open air bag layer 86 and the expansion core 84, a hard mesh cover 87 is sleeved outside the open air bag layer 86, the hard mesh cover 87 is fixedly connected with an outer end of the primary adsorption mesh layer 83, a plurality of secondary extension attachment filaments 88 are filled between the hard mesh cover 87 and the open air bag layer 86, the secondary extension attachment filaments 88 are made of water-absorbent fibers, water vapor in the flue gas can be absorbed, on one hand, the other hand, sulfur oxides and nitrogen oxides in the flue gas can directly react with moisture on the secondary extension attachment filaments 88 to generate a colloidal purification product, and thus the purification of the purification can be efficiently collected.
Referring to fig. 5 and 6, the secondary extended adhesive filament 88 includes a light hollow ball 8801, the outer end of the light hollow ball 8801 is fixedly connected with an adhesive filament 8802, the diameter of the light hollow ball 8801 is larger than the aperture of the mesh of the hard mesh enclosure 87, when the secondary extended adhesive filament 88 is released outwards, the fine adhesive filament 8802 can extend outwards through the hard mesh enclosure 87, the light hollow ball 8801 stays inside the hard mesh enclosure 87, and finally the secondary extended adhesive filament 88 is distributed on the surface of the hard mesh enclosure 87 in a hedgehog shape in a diffused manner, so as to be convenient for contacting with smoke, absorb purified products, cover the primary adsorption mesh layer 83, and reduce the loss of smoke particles inside the primary adsorption mesh layer 83.
The inside fixedly connected with temperature-sensing ware (not drawn) of heat conduction auxiliary material case 7 and a plurality of evenly distributed heater strip (not drawn), temperature-sensing ware and heater strip all are connected with external control system.
A coal-fired ceramic tunnel kiln flue gas desulfurization, denitrification and dust removal integrated equipment is used by the following steps:
s1, introducing sufficient double material collecting wires 8 into a heat-conducting auxiliary box 7, and preheating the interior of the heat-conducting auxiliary box 7;
s2, introducing the dedusted flue gas into an air inlet pipe 6, allowing the flue gas to enter a cooling tower 5, cooling in the cooling tower 5, opening an ammonia spraying control valve 4 to inject ammonia gas into the conveying pipeline 3, opening a one-way valve on a feeding pipe 10, and feeding the heated dual-collecting wire 8 into the conveying pipeline 3 through the feeding pipe 10;
s3, mixing the flue gas, the ammonia gas and the dual collecting wires 8 in the conveying pipeline 3, and allowing the mixture to enter the reactor body 1 together to react through irradiation of the high-energy electron beams of the electron accelerator 2.
The preheating temperature in the step S1 is 85-90 ℃, the interior of the heat-conducting auxiliary box 7 is preheated through the heating wire, meanwhile, the temperature is monitored through the temperature sensor, the preheating temperature is maintained between 85-90 ℃, the power supply of the heating wire can be cut off after preheating, and in the flue gas purification process, the heat-conducting auxiliary box 7 is continuously heated through high-temperature flue gas in the gas inlet pipe 6, so that the high temperature in the heat-conducting auxiliary box 7 is maintained.
The cooling temperature in the step S2 is 60-65 ℃, the cooling temperature is slightly lower than the cooling temperature in the prior art, and because the preheating temperature of the dual collecting wires 8 is higher than the temperature of the cooled flue gas, when the dual collecting wires 8 are mixed with the flue gas, the dual collecting wires 8 can be mixed with the flue gas for heat exchange, so that the temperature of the flue gas rises to a certain degree again, and the purification temperature in the prior art is reached.
In step S1, after the double collecting wire 8 is heated, ammonia gas between the expansion core 84 and the opening air bag layer 86 is heated to expand, so that the opening air bag layer 86 is expanded to be more saturated, and the secondary extension attaching wire 88 is tightly pressed between the opening air bag layer 86 and the hard net cover 87, so that in step S2, when the double collecting wire 8 is sent into the conveying pipeline 3, the secondary extension attaching wire 88 is not easy to extend out of the hard net cover 87, and the absorption of the primary adsorption net layer 83 and the water absorption fluff 82 on smoke particles and water vapor is not easy to be influenced;
in step S2, after the dual collecting yarns 8 and the flue gas are mixed and enter the reactor body 1 together, in the initial stage of mixing, the first-stage adsorption mesh layer 83 adsorbs fine soot particles in the flue gas, the water-absorbing fluff 82 absorbs water vapor in the flue gas and transmits the water vapor to the expansion inner core 84, the expansion inner core 84 expands when encountering water to drive the membrane breaking needle 85 to approach the opening airbag layer 86, meanwhile, the dual collecting yarns 8 in a high-temperature state exchange heat with the flue gas, the temperature of the dual collecting yarns 8 is reduced, and ammonia gas between the opening airbag layer 86 and the expansion inner core 84 shrinks due to cold shrinkage, so that the opening airbag layer 86 shrinks and gradually approaches the expansion inner core 84, the expansion inner core 84 and the opening airbag layer 86 approach each other, and the rate of the membrane breaking needle 85 breaking the opening airbag layer 86 is accelerated; when the open air bag layer 86 is broken, ammonia is released outwards quickly, ammonia airflow drives the secondary extending attaching wire 88 to extend outwards, so that the attaching wire 8802 penetrates through the meshes of the hard mesh enclosure 87 and extends outwards, and is distributed on the surface of the hard mesh enclosure 87 in a hedgehog shape, smoke purification products (aerosol-shaped ammonium sulfate and ammonium nitrate) are adsorbed, meanwhile, the surface of the primary adsorption mesh layer 83 is covered, and the loss of smoke particles in the primary adsorption mesh layer 83 is reduced.
According to the invention, the heated double collecting wire 8 is mixed with the flue gas to assist in flue gas purification, at the initial stage of mixing the double collecting wire 8 with the flue gas, the double collecting wire 8 absorbs water vapor in the flue gas to exchange heat with the flue gas, and the residual smoke dust particles in the flue gas are absorbed through the primary adsorption net layer 83, the temperature of the double collecting wire 8 is gradually reduced, so that the internal air pressure is reduced, meanwhile, due to internal expansion of water absorption, the secondary extension adsorbing wires 88 in the double collecting wire 8 are released outwards under the combined action of the water absorption and the water absorption, so that the purified products (aerosol ammonium sulfate and ammonium nitrate) are adsorbed and covered on the surface of the primary adsorption net layer 83, on one hand, the purified products are not easy to flow away from the flue gas, other molecules are not easy to block, and the high-efficiency purification of the flue gas is ensured, on the other hand, the secondary extension adsorbing wires 88 with the purified products are covered on the surface of the primary adsorption net layer 83, so that the secondary loss of the smoke dust particles and the purified products in the primary adsorption net layer 83 can be effectively reduced, and the continuous purification process is ensured.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a coal-fired ceramic tunnel kiln flue gas SOx/NOx control dust removal integration equipment, includes reactor body (1), electron accelerator (2) are installed to the outer end of reactor body (1), the inlet end fixedly connected with transfer pipe (3) of reactor body (1), the end of giving vent to anger of one end fixedly connected with cooling tower (5) of reactor body (1) is kept away from in transfer pipe (3), the inlet end fixedly connected with intake pipe (6) of cooling tower (5), install on transfer pipe (3) and spout ammonia control valve (4), its characterized in that: a heat-conducting auxiliary box (7) is arranged on the outer side of the air inlet pipe (6), a pipe channel is formed in the heat-conducting auxiliary box (7), the air inlet pipe (6) penetrates through the pipe channel and is fixedly connected with the inner wall of the pipe channel, a double material collecting wire (8) is filled in the heat-conducting auxiliary box (7), a feeding pipe (9) and a feeding pipe (10) which are communicated with the interior of the heat-conducting auxiliary box (7) are fixedly connected with the outer end of the heat-conducting auxiliary box (7), one end, far away from the heat-conducting auxiliary box (7), of the feeding pipe (10) is fixedly connected with the conveying pipeline (3), the feeding pipe (10) is communicated with the interior of the conveying pipeline (3), and a one-way valve is fixedly connected to the feeding pipe (10);
the dual-collecting wire (8) comprises a carrier soft wire (81), the outer end of the carrier soft wire (81) is fixedly connected with a primary adsorption net layer (83) and a plurality of water-absorbing fluff (82), the plurality of water-absorbing fluff (82) are uniformly distributed inside the primary adsorption net layer (83), the outer end of the primary adsorption net layer (83) is fixedly connected with an expansion inner core (84), the outer side of the expansion inner core (84) is sleeved with an opening air bag layer (86), the opening end of the opening air bag layer (86) is fixedly connected with the outer end of the expansion inner core (84), ammonia gas is filled between the expansion inner core (84) and the opening air bag layer (86), the outer side of the opening air bag layer (86) is sleeved with a hard net cover (87), the hard net cover (87) is fixedly connected with the outer end of the primary adsorption net layer (83), and a plurality of secondary extending attached wires (88) are filled between the hard net cover (87) and the opening air bag layer (86);
the secondary extension attached wire (88) comprises a light hollow ball (8801), an attached rubber wire (8802) is fixedly connected to the outer end of the light hollow ball (8801), the diameter of the light hollow ball (8801) is larger than the aperture of the meshes of the hard mesh cover (87), a plurality of membrane breaking needles (85) are uniformly distributed and fixedly connected to the outer end of the expansion inner core (84), and the membrane breaking needles (85) are not in contact with the open air bag layer (86) in the initial state.
2. The integrated equipment for desulfurization, denitrification and dedusting of flue gas of the coal-fired ceramic tunnel kiln as claimed in claim 1, is characterized in that: the inside fixedly connected with temperature-sensing ware and a plurality of evenly distributed's heater strip of heat conduction auxiliary material case (7).
3. The integrated equipment for desulfurization, denitrification and dedusting of flue gas of the coal-fired ceramic tunnel kiln as claimed in claim 1, is characterized in that: the using method comprises the following steps:
s1, introducing sufficient double collecting wires (8) into the heat-conducting auxiliary box (7), and preheating the interior of the heat-conducting auxiliary box (7);
s2, introducing the dedusted flue gas into an air inlet pipe (6), allowing the flue gas to enter a cooling tower (5), cooling in the cooling tower (5), simultaneously opening an ammonia injection control valve (4) to inject ammonia gas into a conveying pipeline (3), opening a one-way valve on a feeding pipe (10), and feeding the heated dual-collecting wire (8) into the conveying pipeline (3) through the feeding pipe (10);
s3, flue gas, ammonia gas and the double-collecting wire (8) are mixed in the conveying pipeline (3) and enter the reactor body (1) together to react through the irradiation of the high-energy electron beams of the electron accelerator (2).
4. The integrated equipment for desulfurization, denitrification and dedusting of flue gas of the coal-fired ceramic tunnel kiln as recited in claim 3, is characterized in that: the preheating temperature in the step S1 is 85-90 ℃.
5. The integrated equipment for desulfurization, denitrification and dedusting of flue gas of the coal-fired ceramic tunnel kiln as recited in claim 3, is characterized in that: the cooling temperature in step S2 is 60-65 ℃.
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