CN112426850A - Adsorbent injection device based on adsorbent injection demercuration - Google Patents
Adsorbent injection device based on adsorbent injection demercuration Download PDFInfo
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- CN112426850A CN112426850A CN202011130764.4A CN202011130764A CN112426850A CN 112426850 A CN112426850 A CN 112426850A CN 202011130764 A CN202011130764 A CN 202011130764A CN 112426850 A CN112426850 A CN 112426850A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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 adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation 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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation 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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
Abstract
The invention discloses an adsorbent injection device based on adsorbent injection demercuration, which comprises an air suction pipe, wherein an air pipe behind the air suction pipe is in an obliquely upward direction, an air suction assembly comprises two eccentric cylinders, blade sleeves are respectively arranged in the two eccentric cylinders, blades are respectively sleeved in the blade sleeves, gears are respectively arranged at the upper ends of the two eccentric cylinders, a neutralization assembly is arranged inside the blades and the blade sleeves, a recovery assembly is arranged on the side surface of each blade, a cooling assembly is arranged above the gears, the air suction assembly can suck coal-fired waste gas into the air suction pipe for demercuration, the cooling assembly reduces the temperature of the waste gas and liquefies most of mercury vapor, the neutralization assembly neutralizes the residual mercury vapor and mercury oxide into substances which are difficult to volatilize, and then the neutralized byproducts and adsorption materials are recovered by the recovery assembly to prevent the byproducts from being accumulated in the air suction pipe, the invention has the characteristics of simultaneous desulfurization, demercuration, mercury oxide removal and high adsorption efficiency.
Description
Technical Field
The invention relates to the technical field of industrial machinery, in particular to an adsorbent injection device based on adsorbent injection demercuration.
Background
From the basic national situation of China, coal is still the most main primary energy source in China in the foreseeable future, but the great exploitation and utilization of the coal cause the rapid reduction of high-quality coal resources, and the contradiction between energy safety and environmental protection is excited. The high-sulfur coal resources in China are rich, and 7.80% of coal mines and key coal mines distributed in China are all high-sulfur coal, which is an important coal resource. However, the high sulfur characteristics of high sulfur coal itself have hindered its development and utilization.
When the existing adsorbent injection device is used for coal, two sets of equipment for mercury removal and desulfurization are needed, which is very inconvenient, mercury can form mercury oxide after oxidation, equipment for neutralizing the mercury oxide is lacked, and effective adsorption of the adsorbent is difficult to ensure due to continuous flowing of waste gas. Therefore, it is necessary to design a sorbent injection device based on sorbent injection for mercury removal, which can simultaneously remove sulfur, mercury and mercury oxide, and has high adsorption efficiency.
Disclosure of Invention
The invention aims to provide an adsorbent injection device based on adsorbent injection demercuration, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a sorbent injection apparatus based on sorbent injection demercuration, includes the breathing pipe, install the subassembly of breathing in the breathing pipe, install neutralization subassembly and recovery subassembly in the subassembly of breathing in, cooling module is installed to the breathing pipe upside, and the subassembly of breathing in can inhale coal-fired waste gas and air in the breathing pipe, when helping the coal burning, takes away waste gas and carries out demercuration, and cooling module reduces the waste gas temperature and liquefies most mercury vapour, and neutralization subassembly neutralizes remaining mercury vapour and mercury oxide for the material that is difficult to volatilize, withdraws by the recovery subassembly again and neutralizes the accessory substance and the adsorption material that go out, prevents that the accessory substance from piling up in the breathing pipe.
According to the technical scheme, the air pipe behind the air suction pipe is in the oblique upward direction, the air suction assembly comprises two eccentric cylinders, blade sleeves are respectively installed in the two eccentric cylinders, blades are respectively sleeved in the blade sleeves, gears are respectively installed at the upper ends of the two eccentric cylinders, the neutralizing assembly is installed inside the blades and the blade sleeves, the recovering assembly is installed on the side face of each blade, the cooling assembly is installed above the gears, the air pipe in the oblique upward direction behind the air suction pipe enables neutralized byproducts to slide back so as to be collected by the recovering assembly, the eccentric cylinders prevent the exhaust gas from leaking from two sides and drive the blades to rotate when rotating to attract the exhaust gas and air, meanwhile, the blades and the blade sleeves can drive the neutralizing assembly to remove mercury from the exhaust gas, the recovering assembly is driven by the rotation of the eccentric cylinders after the mercury removal is completed, and the byproducts are recovered, automatically cleaning the air suction pipe.
According to the technical scheme, the cooling assembly comprises a water tank, the gear is of a gear pump structure, a water inlet and a water inlet of the gear pump structure are respectively connected with a water source and a pipeline at the upper end of the water tank, the water tank is arranged above the gear, a baffle is arranged on the water tank, a plurality of water tank one-way valves are arranged in the baffle, a feeding port is arranged at the upper end of the water tank and is connected with a water tank pipeline below the baffle, one side of the water tank above the baffle is connected with a pipe wall pipeline of an air pipe behind an air suction pipe, the motor drives an eccentric cylinder to rotate through the gear, the gear pump structure consisting of two gears can convey water into the water tank, the water falls to a lower layer through the water tank one-way valves, the adsorption material is added from the feeding port to form an adsorbent, after the lower layer of the water, and unnecessary water is carried to the trachea pipe wall behind the breathing pipe in, continuously cools down the waste gas after the demercuration to subsequent waste gas treatment process, the blade dislocation that simultaneously gear's meshing can guarantee both sides is stretched out, carries out the demercuration after evenly segmenting waste gas, improves the effect of demercuration and the recovery of the convenient neutralization accessory substance.
According to the technical scheme, a concave column is installed in the suction pipe, a plurality of blade lantern rings are installed on the concave column in a sleeved mode, telescopic rods and springs are installed between the blade lantern rings and blades, an eccentric cylinder clamping block is installed at the upper end of the concave column, an eccentric cylinder clamping groove is installed on the inner side of the upper end of the eccentric cylinder, the upper end of the concave column is of a hollow structure, the hollow structure at the upper end of the concave column is connected with the surface of the eccentric cylinder clamping block and the bottom of a water tank through pipelines, a conveying pipe is installed in the eccentric cylinder, the conveying pipe is connected with the eccentric cylinder clamping groove and a neutralizing assembly pipeline, when the eccentric cylinder rotates, the water tank can continuously supply water for the conveying pipe through the hollow structure at the upper end of the concave column, and when the eccentric cylinder rotates, the blade sleeve and the eccentric cylinder only have small reciprocating rotation relatively, so that the rotation of the eccentric cylinder, after the telescopic rod and the spring enable the blade to return to the blade sleeve, one end of the blade is kept on the surface of the eccentric cylinder through the telescopic rod and the spring, the eccentric cylinder is sealed, waste gas is prevented from being brought out, and recycling of byproducts is facilitated.
According to the technical scheme, the blade comprises a blade plate, a fixed block is arranged on one side of the blade plate, the blade sleeve comprises a sleeve shell, blade openings are respectively arranged at the upper end and the lower end of the sleeve shell, the blade openings and the blade plate are of a matched structure, a neutralization liquid tank is arranged in the sleeve shell, and the fixed block is used for dividing the neutralization liquid tank into an upper layer and a lower layer;
the neutralizing assembly comprises a one-way valve member and a spray head member, the one-way valve member is arranged at the lower end of the fixed block and at the bottom surface inside the neutralizing liquid tank, the one-way valve member at the bottom surface inside the neutralizing liquid tank is connected with a pipeline of a delivery pipe, the spray head member is arranged at one side, far away from the fixed block, of the blade plate, the spray head member is connected with the one-way valve member at the lower end of the fixed block, the one-way valve member is used for limiting the flow direction, the adsorbent can segment waste gas in the suction pipe when the blade plate extends out of the casing, meanwhile, negative pressure is generated in the neutralizing liquid tank at the lower layer through the movement of the fixed block, the adsorbent is sucked through the delivery pipe, when the blade plate retracts, the adsorbent in the neutralizing liquid tank is extruded through the fixed block, the adsorbent is sprayed out of the spray head member, and mercury, the efficiency of demercuration is improved.
According to the technical scheme, the one-way valve component comprises a splitter plate, the front end of the splitter plate is cylindrical, a splitter inclined plane is installed between the splitter plates, a rotary baffle is installed in front of the splitter plate, a spring is installed between the rotary baffle and the pipe wall, an elastic stop block is installed at the bottom of the rotary baffle close to one side of the splitter plate, and as granular solid adsorbates are contained in the adsorbent, a common one-way valve is easily blocked to cause damage of the device, preventing the check valve member from becoming clogged.
According to the technical scheme, the spray head component comprises a spray pipe, a rotating plate is arranged on one side of the spray pipe, a spring is arranged between one end of the rotating plate and the blade plate, an elastic gauze is arranged in the spray pipe, one side of the elastic gauze is connected with one end of the rotating plate, after the blades extend out, the spring lifts the rotating plate to enable the rotating plate to stretch the elastic gauze to enable the elastic gauze to be difficult to deform, the liquid adsorbent can be sprayed out of the elastic gauze, most of the granular adsorbate can be gradually accumulated on the elastic gauze, and then the spray pipe is blocked, in the retraction process of the blade, the eccentric cylinder can push the rotating plate back to retract the elastic gauze, the elastic gauze in the spray pipe can generate larger deformation, meanwhile, the holes are increased, so that the particle adsorbates are radially sprayed out, the uniform distribution of the particle adsorbates is ensured, and the effects of neutralizing by the adsorption liquid and adsorbing by the adsorbates are achieved.
According to the technical scheme, the iodine powder and the activated carbon powder are used as the adsorbents, and the first sprayed adsorbent contains water H2O, iodine I2And a small amount of active carbon particles, wherein water and iodine are firstly evaporated due to the heat absorption of the higher temperature of the waste gas, the temperature of the waste gas is reduced, part of mercury vapor Hg is liquefied, iodine vapor is generated, and the iodine vapor can react with the rest mercury vapor (Hg + I)2＝HgI2) To produce the mercury iodide HgI which is difficult to volatilize2Sulfur oxides SO are also produced during the combustion of coal2The remaining water absorbs sulfur oxide (H)2O+SO3＝H2SO3) Simultaneously, a small amount of active carbon particles sprayed out are used as a catalyst and are mixed with oxygen O in the sucked air2The reaction (2H)2SO3+O2＝2H2SO4) To produce sulfuric acid H2SO4Mercury oxide HgO (O) produced during coal combustion2+2Hg ═ 2HgO heating), it is absorbed directly by sulfuric acid (H)2SO4+HgO＝HgSO4+H2And O), after the reaction is fully performed, the rest of the activated carbon particles are sprayed out to absorb the liquid by-product and prevent the liquid by-product from volatilizing, and the separate spraying of the adsorption liquid and the activated carbon can prevent the activated carbon from absorbing the sulfuric acid in advance and preventing the mercury oxide from being neutralized.
According to the technical scheme, the scraper blade is installed to blade board one end, it includes the collection box to retrieve the subassembly, the eccentric section of thick bamboo is kept away from the bottom of breathing pipe one end and is installed the recovery hole, recovery hole and collection box top pipe connection, the blade is when the withdrawal, can scrape the accessory substance of neutralization to the casing in the eccentric section of thick bamboo and the space between the scraper blade through the scraper blade, with the accessory substance take on the recovery hole on the back, fall into the collection box in, the effect of automatic recovery has been reached, active carbon can adsorb the impurity of aquatic in the collection box, then through the deposit, isolate active carbon and liquid mercury, rethread filtration separation active carbon and liquid mercury, can prevent water pollution to recycle liquid mercury and active carbon.
According to the technical scheme, an elastic friction block is installed on one side of the recovery hole, a scraping block groove is installed on one side of the casing, a scraping block is installed in the scraping block groove, a membrane is installed at the upper end of the scraping block groove, a first roller is connected with an upper side line of the scraping block, a volute spring is installed on a first roller rotating shaft, a second roller is connected with a lower side line of the scraping block, rollers are installed on the second roller rotating shaft, when the second roller rotating shaft sprays, part of adsorption liquid, adsorption substances and by-products can be adsorbed on the blade plate, when the blade retracts, part of substances adsorbed on the blade plate can be scraped onto the casing, after the blade retracts completely, the elastic friction block is contacted with the rollers, the rollers are rotated, the second roller is driven to scrape the impurities adsorbed on the blade plate and the casing through line pulling, after the impurities reach the upper part of the recovery hole, the impurities are pressed into the recovery hole and then scraped, the effect of self-cleaning cover shell and vane plate is reached, the accumulation of sundries is prevented, and the normal work of the device is influenced.
Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,
(1) through the arrangement of the air suction assembly, the blades on two sides extend out in a staggered mode through meshing of the gears, and the waste gas is uniformly segmented and then is subjected to automatic demercuration and automatic byproduct recovery, so that the demercuration effect is improved, and the byproducts are convenient to recover;
(2) the one-way valve member is arranged, so that the particles can be uniformly distributed in the adsorbent, the adsorbent can be uniformly sprayed, and meanwhile, when the flow distribution plate is closed, the rotating baffle can easily push the particles back to the flow distribution inclined plane due to the fact that the front end of the flow distribution plate is cylindrical, and the one-way valve member is prevented from being blocked;
(3) by arranging the spray head component and taking the iodine powder and the activated carbon powder as the adsorbents, mercury and mercury oxide are neutralized firstly, then the activated carbon is enabled to absorb and adsorb liquid byproducts, so that the liquid byproducts are prevented from volatilizing, and the adsorption liquid and the activated carbon are sprayed out separately, so that the activated carbon can be prevented from absorbing sulfuric acid in advance and hindering the neutralization of the mercury oxide;
(4) through being provided with the recovery subassembly, debris are retrieved the collection box automatically, have reached the effect of self-cleaning cover shell and bladed plate, prevent piling up of debris, influence this device and normally work.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cooling assembly of the present invention;
FIG. 3 is a schematic view of a blade configuration of the present invention;
FIG. 4 is a schematic view of a vane sleeve configuration of the present invention;
FIG. 5 is a schematic view of a slot structure of the eccentric cylinder of the present invention;
FIG. 6 is a schematic structural view of a neutralization module of the present invention;
FIG. 7 is a schematic view of the check valve member configuration of the present invention;
FIG. 8 is a schematic structural view of a sprinkler head member of the present invention;
FIG. 9 is a schematic view of a recovery hole configuration of the present invention;
FIG. 10 is a schematic view of a scraper block structure of the present invention;
in the figure: 1. an air intake duct; 2. a getter assembly; 21. an eccentric cylinder; 22. a blade sleeve; 221. a housing; 222. a blade opening; 223. a neutralization liquid tank; 23. a blade; 231. a vane plate; 232. a fixed block; 233. a squeegee; 24. a gear; 25. a concave post; 26. an eccentric cylinder fixture block; 27. an eccentric cylinder clamping groove; 28. a delivery pipe; 29. a blade collar; 3. a neutralizing component; 31. a check valve member; 311. a flow distribution plate; 312. a diversion inclined plane; 313. rotating the baffle; 32. a head member; 321. a nozzle; 322. a rotating plate; 323. an elastic gauze; 4. a recovery assembly; 41. a recycling bin; 42. a recovery hole; 43. an elastic friction block; 44. a scraping block groove; 45. scraping the block; 46. a first roller; 47. a second roller; 48. a roller; 5. a cooling assembly; 51. a water tank; 52. a baffle plate; 53. a water tank check valve; 54. and (7) adding a material port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-10, the present invention provides the following technical solutions: referring to fig. 1 and 2, a sorbent injection device based on sorbent injection demercuration comprises an air suction pipe 1, an air suction assembly 2 is installed in the air suction pipe 1, a neutralization assembly 3 and a recovery assembly 4 are installed in the air suction assembly 2, a cooling assembly 5 is installed on the upper side of the air suction pipe 1, the air suction assembly 2 can suck coal-fired waste gas and air into the air suction pipe 1 to help coal combustion and simultaneously suck the waste gas for demercuration, the cooling assembly 5 reduces the temperature of the waste gas and liquefies most of mercury vapor, the neutralization assembly 3 neutralizes the residual mercury vapor and mercury oxide into substances which are difficult to volatilize, and then the neutralized byproducts and sorbents are recovered by the recovery assembly 4 to prevent the byproducts from being accumulated in the air suction pipe 1;
referring to fig. 1 and 2, the air pipe behind the air suction pipe 1 is in an oblique upward direction, the air suction assembly 2 comprises two eccentric cylinders 21, blade sleeves 22 are respectively installed in the two eccentric cylinders 21, blades 23 are respectively sleeved in the blade sleeves 22, gears 24 are respectively installed at the upper ends of the two eccentric cylinders 21, the neutralizing assembly 3 is installed inside the blades 23 and the blade sleeves 22, the recovering assembly 4 is installed at the side surfaces of the blades 23, the cooling assembly 5 is installed above the gears 24, the oblique upward air pipe behind the air suction pipe 1 enables neutralized byproducts to slide back so as to facilitate the collection of the recovering assembly 4, the eccentric cylinders 21 prevent the exhaust gas from leaking from two sides, and drive the blades 23 to rotate when rotating, attract the exhaust gas and air, meanwhile, the blades 23 and the blade sleeves 22 can drive the neutralizing assembly 3 to remove mercury from the exhaust gas, the recovering assembly 4 is driven by the rotation of the eccentric cylinders 21 after the removal of mercury is completed, recycling the by-products and automatically cleaning the air suction pipe 1;
as shown in fig. 2, the cooling module 5 includes a water tank 51, the gears 24 are combined into a gear pump structure, a water inlet and a water inlet of the gear pump structure are respectively connected with a water source and a pipeline at the upper end of the water tank 51, the water tank 51 is installed above the gears 24, a baffle 52 is installed on the water tank 51, a plurality of water tank check valves 53 are installed in the baffle 52, a feeding port 54 is installed at the upper end of the water tank 51, the feeding port 54 is connected with the water tank 51 below the baffle 52, one side of the water tank 51 above the baffle 52 is connected with a pipeline at the rear end of the air suction pipe 1, the motor drives the eccentric cylinder 21 to rotate through the gears 24, the gear pump structure formed by the two gears 24 can convey water into the water tank 51, the water falls to the lower layer through the water tank check valves 53, the adsorbent is added from the feeding port 54 to form the adsorbent, after the lower layer of, and the redundant water is conveyed into the pipe wall of the air pipe behind the air suction pipe 1, the waste gas after demercuration is continuously cooled, so that the subsequent waste gas treatment process is facilitated, meanwhile, the engagement of the gear 24 can ensure that the blades 23 on the two sides are extended in a staggered mode, the waste gas is demercurated after being evenly segmented, the demercuration effect is improved, and the recovery of a neutralization byproduct is facilitated;
referring to fig. 5, a concave column 25 is installed in an air suction pipe 1, a plurality of blade lantern rings 29 are installed on the concave column 25 in a sleeved mode, a telescopic rod and a spring are installed between the blade lantern rings 29 and blades 23, an eccentric cylinder clamping block 26 is installed at the upper end of the concave column 25, an eccentric cylinder clamping groove 27 is installed on the inner side of the upper end of an eccentric cylinder 21, the upper end of the concave column 25 is of a hollow structure, the hollow structure at the upper end of the concave column 25 is connected with the surface of the eccentric cylinder clamping block 26 and the bottom of a water tank 51 through pipelines, a conveying pipe 28 is installed in the eccentric cylinder 21, the conveying pipe 28 is connected with the eccentric cylinder clamping groove 27 and a neutralizing assembly 3 through pipelines, when the eccentric cylinder 21 rotates, through a gap between the eccentric cylinder clamping block 26 and the eccentric cylinder clamping groove 27, the water tank can continuously supply water to the conveying pipe 28 through the hollow structure at the upper end of the concave column 25, and when the eccentric cylinder 21 rotates, the, after the telescopic rod and the spring enable the blade 23 to return to the blade sleeve 22, one end of the blade 23 is kept on the surface of the eccentric cylinder 21 through the telescopic rod and the spring, the eccentric cylinder 21 is sealed, and the recovery of byproducts is facilitated while the exhaust gas is prevented from being brought out;
as shown in fig. 3, the vane 23 includes a vane plate 231, a fixing block 232 is installed on one side of the vane plate 231, the vane sleeve 22 includes a casing 221, vane ports 222 are respectively installed on the upper and lower ends of the casing 221, the vane ports 222 and the vane plate 231 are in a matching structure, a neutralization liquid tank 223 is installed in the casing 221, and the fixing block 232 is used for connecting the neutralization liquid tank 223 with the upper and lower layers;
the neutralizing component 3 comprises a one-way valve member 31 and a nozzle member 32, the one-way valve member 31 is arranged at the lower end of a fixed block 232 and at the bottom surface of the interior of a neutralizing liquid tank 223, the one-way valve member 31 at the bottom surface of the interior of the neutralizing liquid tank 223 is connected with a pipeline of a delivery pipe 28, the nozzle member 32 is arranged at the side, far away from the fixed block 232, of a blade plate 231, the nozzle member 32 is connected with the one-way valve member 31 at the lower end of the fixed block 232 through a pipeline, the one-way valve member 31 is used for limiting the flow direction, when an adsorbent extends out of a casing 221 from the blade plate 231, the exhaust gas in the air suction pipe 1 can be segmented, meanwhile, negative pressure is generated in the neutralizing liquid tank 223 at the lower layer through the movement of the fixed block 232, the adsorbent is sucked through the delivery pipe 28, when the blade plate 231 retracts, the adsorbent in the, the mercury removal is automatically carried out on the waste gas discharged in sections, so that the mercury removal efficiency is improved;
as shown in fig. 4, the check valve member 31 includes a flow dividing plate 311, the front end of the flow dividing plate 311 is cylindrical, a flow dividing inclined surface 312 is installed between the flow dividing plates 311, a rotary baffle 313 is installed in front of the flow dividing plate 311, a spring is installed between the rotary baffle 313 and the pipe wall, an elastic stopper is installed at the bottom of the rotary baffle 313 near the side of the flow dividing plate 311, because the adsorbent contains granular solid adsorbent, the common check valve is easily blocked, and the device is damaged, in the check valve member 31, the particles can be dispersed into the flow dividing inclined surface 312 through the flow dividing plate 311, because the rotary baffle 313 is located at the upper side, the adsorbent is preferentially sprayed out from the lower side, the particles can be uniformly distributed in the adsorbent, so that the adsorbent is uniformly sprayed, and when the flow dividing plate 311 is closed, because the front end of the flow dividing plate 311 is cylindrical, the rotary baffle 313, preventing the check valve member 31 from being clogged;
referring to fig. 6, the nozzle member 32 includes a nozzle 321, a rotating plate 322 is installed on one side of the nozzle 321, a spring is installed between one end of the rotating plate 322 and the vane plate 231, an elastic gauze 323 is installed in the nozzle 321, one side of the elastic gauze 323 is connected to one end of the rotating plate 322, after the vane 23 is extended, the spring lifts the rotating plate 322 to make the rotating plate 322 stretch the elastic gauze 323 to make the elastic gauze 323 difficult to deform, the liquid absorbent can be sprayed out from the elastic gauze 323, and most of the particle absorbent can be gradually accumulated on the elastic gauze 323, then the nozzle 321 is blocked, during the retraction of the vane 23, the eccentric cylinder 21 pushes the rotating plate 322 back to make the elastic gauze 323 retract, the elastic gauze 323 in the nozzle 321 can generate larger deformation, and the holes become more, so that the particle absorbent can be sprayed out radially to ensure the uniform distribution of the particle absorbent, and the particle absorbent can be neutralized by the absorbent first, then the adsorption effect is carried out by the adsorbate;
iodine powder and activated carbon powder are used as adsorbents, and water H is contained in the first sprayed adsorbent2O, iodine I2And a small amount of active carbon particles, wherein water and iodine are firstly evaporated due to the heat absorption of the higher temperature of the waste gas, the temperature of the waste gas is reduced, part of mercury vapor Hg is liquefied, iodine vapor is generated, and the iodine vapor can react with the rest mercury vapor (Hg + I)2＝HgI2) To produce the mercury iodide HgI which is difficult to volatilize2Sulfur oxides SO are also produced during the combustion of coal2The remaining water absorbs sulfur oxide (H)2O+SO3＝H2SO3) Simultaneously, a small amount of active carbon particles sprayed out are used as a catalyst and are mixed with oxygen O in the sucked air2The reaction (2H)2SO3+O2＝2H2SO4) To produce sulfuric acid H2SO4Mercury oxide HgO (O) produced during coal combustion2+2Hg ═ 2HgO heating), it is absorbed directly by sulfuric acid (H)2SO4+HgO＝HgSO4+H2O), after the reaction is sufficient, the rest activated carbon particles are sprayed out to absorb the liquid by-product and prevent the liquid by-product from volatilizing, and the separate spraying of the adsorption liquid and the activated carbon can prevent the activated carbon from absorbing the sulfuric acid in advance and hindering the neutralization of the mercury oxide;
as shown in fig. 3, a scraping plate 233 is installed at one end of a blade plate 231, the recycling assembly 4 includes a recycling tank 41, a recycling hole 42 is installed at the bottom of the eccentric cylinder 21 far away from the air suction pipe 1, the recycling hole 42 is connected with a top pipeline of the recycling tank 41, when the blade 23 retracts, a neutralized byproduct is scraped to a gap between the casing 221 and the scraping plate 233 in the eccentric cylinder 21 through the scraping plate 233, the byproduct is brought to the recycling hole 42 and then falls into the recycling tank 41, so that an automatic recycling effect is achieved, the activated carbon in the recycling tank 41 adsorbs impurities in water, then the activated carbon and liquid mercury are separated through deposition, and then the activated carbon and liquid mercury are separated through filtration, so that water pollution can be prevented, and the liquid mercury and the activated carbon are recycled;
as shown in fig. 9 and 10, an elastic friction block 43 is installed on one side of the recycling hole 42, a scraping block groove 44 is installed on one side of the casing 221, a scraping block 45 is installed in the scraping block groove 44, a membrane is installed at the upper end of the scraping block groove 44, a first roller 46 is connected with the upper side line of the scraping block 45, a volute spring is installed on the rotating shaft of the first roller 46, a second roller 47 is connected with the lower side line of the scraping block 45, a roller 48 is installed on the rotating shaft of the second roller 47, during spraying, part of adsorption liquid, adsorption substances and by-products can be adsorbed on the blade plate 231, when the blade 23 retracts, part of the substances adsorbed on the blade plate 231 can be scraped to the casing 221, after the blade 23 is completely retracted, the elastic friction block 43 is contacted with the roller 48, the roller 48 rotates to drive the second roller 47 to pull the scraping block 45 through the line to scrape off the impurities adsorbed on the blade plate and the casing 221, and after, then scraped away by the wall of the recovery hole 42, thereby achieving the effect of automatically cleaning the casing 221 and the blade plate 231, preventing the accumulation of sundries and influencing the normal work of the device.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sorbent injection device based on sorbent injection demercuration, comprising an air suction pipe (1), characterized in that: be provided with in breathing pipe (1) and inhale subassembly (2), be provided with in inhaling subassembly (2) and neutralize subassembly (3) and retrieve subassembly (4), breathing pipe (1) upside is provided with cooling module (5).
2. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 1, wherein: the trachea at breathing pipe (1) rear is the oblique upper direction, it includes two eccentric section of thick bamboo (21) to breathe in subassembly (2), two be provided with blade cover (22) in eccentric section of thick bamboo (21) respectively, establish by blade (23) in blade cover (22) respectively, two eccentric section of thick bamboo (21) upper end is provided with gear (24) respectively, neutralization module (3) set up inside blade (23) and blade cover (22), it sets up in blade (23) side to retrieve subassembly (4), cooling module (5) set up in gear (24) top.
3. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 2, wherein: cooling unit (5) include water tank (51), gear (24) combination is the gear pump structure, the water inlet and the water inlet of gear pump structure respectively with water source and water tank (51) upper end pipe connection, water tank (51) set up in gear (24) top, water tank (51) are provided with baffle (52), be provided with a plurality of water tank check valves (53) in baffle (52), water tank (51) upper end is provided with material adding mouth (54), material adding mouth (54) and water tank (51) pipe connection of baffle (52) below, water tank (51) one side and the trachea pipe wall pipe connection of breathing pipe (1) rear of baffle (52) top.
4. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 3, wherein: the air suction pipe is characterized in that a concave column (25) is arranged in the air suction pipe (1), a plurality of blade sleeve rings (29) are sleeved on the concave column (25), telescopic rods and springs are arranged between the blade sleeve rings (29) and the blades (23), an eccentric cylinder clamping block (26) is arranged at the upper end of the concave column (25), an eccentric cylinder clamping groove (27) is formed in the inner side of the upper end of the eccentric cylinder (21), the upper end of the concave column (25) is of a hollow structure, the hollow structure at the upper end of the concave column (25) is connected with the surface of the eccentric cylinder clamping block (26) and a water tank (51) bottom pipeline, a conveying pipe (28) is arranged in the eccentric cylinder (21), and the conveying pipe (28) is connected with the eccentric cylinder clamping groove (27) and the neutralizing assembly.
5. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 4, wherein: the blade (23) comprises a blade plate (231), a fixed block (232) is arranged on one side of the blade plate (231), the blade sleeve (22) comprises a casing (221), blade openings (222) are respectively formed in the upper end and the lower end of the casing (221), the blade openings (222) and the blade plate (231) are of a matched structure, a neutralization liquid tank (223) is arranged in the casing (221), and the fixed block (232) is used for enabling the neutralization liquid tank (223) to be divided into an upper layer and a lower layer;
the neutralizing assembly (3) comprises a one-way valve member (31) and a spray head member (32), the one-way valve member (31) is arranged at the lower end of the fixing block (232) and the bottom surface of the interior of the neutralizing liquid tank (223), the one-way valve member (31) at the bottom surface of the interior of the neutralizing liquid tank (223) is connected with the conveying pipe (28) through a pipeline, the spray head member (32) is arranged on one side, away from the fixing block (232), of the blade plate (231), and the spray head member (32) is connected with the one-way valve member (31) at the lower end of the fixing block.
6. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 5, wherein: check valve member (31) include flow distribution plate (311), flow distribution plate (311) front end is cylindrical, be provided with reposition of redundant personnel inclined plane (312) between flow distribution plate (311), flow distribution plate (311) the place ahead is provided with rotating barrier (313), be provided with the spring between rotating barrier (313) and the pipe wall, rotating barrier (313) bottom is close to flow distribution plate (311) one side and is provided with the elasticity dog.
7. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 6, wherein: the spray head component (32) comprises a spray pipe (321), a rotating plate (322) is arranged on one side of the spray pipe (321), a spring is arranged between one end of the rotating plate (322) and the vane plate (231), an elastic gauze (323) is arranged in the spray pipe (321), and one side of the elastic gauze (323) is connected with one end of the rotating plate (322).
8. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 7, wherein: iodine powder and activated carbon powder are used as adsorbents.
9. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 8, wherein: the scraper blade (233) is arranged at one end of the blade plate (231), the recovery assembly (4) comprises a recovery box (41), a recovery hole (42) is formed in the bottom, away from one end of the air suction pipe (1), of the eccentric cylinder (21), and the recovery hole (42) is connected with a pipeline at the top of the recovery box (41).
10. The sorbent injection apparatus for sorbent-injection-based mercury removal according to claim 9, wherein: recovery hole (42) one side is provided with elasticity clutch blocks (43), cover shell (221) one side is provided with scrapes a groove (44), it scrapes piece (45) to be provided with in scraping a groove (44), it is provided with the diaphragm to scrape a groove (44) upper end, it has cylinder (46) to scrape side line connection on piece (45), be provided with the spiral spring on cylinder (46) rotation axis, it is connected with No. two cylinders (47) to scrape side line connection under piece (45), be provided with gyro wheel (48) on No. two cylinders (47) rotation axis.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113069882A (en) * | 2021-04-01 | 2021-07-06 | 林俊新 | Gas purification oil separation equipment |
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| CN112426850B (en) | 2022-07-22 |
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