CN106310911B - Combined deep purification device for desulfurization wet flue gas - Google Patents
Combined deep purification device for desulfurization wet flue gas Download PDFInfo
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- CN106310911B CN106310911B CN201610702685.3A CN201610702685A CN106310911B CN 106310911 B CN106310911 B CN 106310911B CN 201610702685 A CN201610702685 A CN 201610702685A CN 106310911 B CN106310911 B CN 106310911B
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- 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
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention provides a combined type deep purification device for desulfurized wet flue gas, which comprises a Venturi negative-absorption demisting layer, a high-efficiency demisting layer, a condensation demisting layer and a superfine demisting layer from bottom to top, wherein a cross beam I is arranged between the vacuum negative-absorption demisting layer and the high-efficiency demisting layer, hanging plates I are arranged at the left end and the right end of the cross beam I, supporting square steel I is arranged at the lower end of each hanging plate I, a collecting tank is arranged in the middle of each supporting square steel I, Venturi blades are arranged on the vacuum negative-absorption demisting layer, high-efficiency demisting layer blades are arranged on the high-efficiency demisting layer, a cross beam II is arranged between the condensation demisting layer and the superfine demisting layer, cold-energy demisting layer blades are arranged on the condensation demisting layer, superfine demisting layer blades are arranged on the superfine demisting layer, and supporting plates are arranged at the left end and the right end of the cross beam II. The combined deep purification device for the desulfurized wet flue gas provided by the invention has the advantages of good purification effect and reliable operation.
Description
Technical Field
The invention relates to a purification device used in the technical field of industry, in particular to a combined deep purification device for desulfurization wet flue gas.
Background
China is a developing country, industrial development is inevitable, with the development of economy, the protection of people on the environment becomes the key point of government and people attention, fuel contains a large amount of dust and sulfur dioxide, and has developed into an important factor harming human health, and various dust removal and desulfurization methods and equipment are provided at home and abroad at present, and dry and wet methods are common, or other combustion methods are converted for dust removal and desulfurization. The working process is almost completed by two or more independent systems, and although some positive effects are achieved, the working process also has respective disadvantages and shortcomings. The land occupation is large, the investment is high, the system is complex, and the high consumption brings great pressure to enterprises.
The technical scheme includes that the demister for the dust removal desulfurization tower comprises a circular frame, at least one clip, at least one fixed rod and at least one bent demisting plate, the demisting plates are arranged in the circular frame, the clip is arranged between every two demisting plates and arranged on the fixed rod, the fixed rod penetrates through the demisting plates, and two ends of the fixed rod are arranged on the inner side of the frame. The demister for the dust removal desulfurization tower provided by the invention only purifies through one layer, has poor demisting effect, does not have a washing device, and is easy to block blades and damage equipment.
Disclosure of Invention
The invention aims to solve the problems of poor purification effect and short service life of a demister, and designs a combined type deep purification device for desulfurization wet flue gas.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a wet flue gas combination formula deep purification device of desulfurization, from down up including venturi negative absorption defogging layer, high-efficient defogging layer, condensation defogging layer and hyperfine defogging layer, characterized by, the venturi negative absorption defogging layer upper end left and right sides is equipped with controls the venturi negative absorption defogging layer curb plate, high-efficient defogging layer lower extreme left and right sides is equipped with controls high-efficient defogging layer downside board, control venturi negative absorption defogging layer curb plate and control high-efficient defogging layer downside board and be connected, be equipped with crossbeam I between venturi negative absorption defogging layer and the high-efficient defogging layer, the left and right sides both ends of crossbeam I are passed left and right sides venturi negative absorption defogging layer curb plate, the left and right sides high-efficient defogging layer downside board of crossbeam I is passed, high-efficient defogging layer downside board and desulfurizing tower wall connection about crossbeam I about both ends about the crossbeam I, be equipped with link plate I between both ends and the desulfurizing tower inner wall about the crossbeam I, the lower end of the hanging plate I is provided with a supporting square steel I, the middle position of the supporting square steel I is provided with a collecting groove, left and right Venturi blades are arranged between the left and right end faces of the collecting groove and left and right Venturi negative-suction defogging layer side plates, the middle position of the left and right parts of the collecting groove on the supporting square steel I is provided with a hook, a water pipeline I is arranged on the hook, a hook is arranged on the lower surface of the middle position on the cross beam I, a water pipeline II is arranged on the hook, left and right high-efficiency defogging layer upper side plates are arranged above the middle position of the cross beam I, the left and right high-efficiency defogging layer upper side plates are connected with each other, left and right high-efficiency defogging layer blades are arranged between the left and right high-efficiency defogging layer lower side plates and the left and right high-efficiency defogging layer upper side plates, the upper surface of the middle position of the cross beam I is provided with a supporting seat, the water pipeline III is arranged on the supporting seat, and front and rear ends of the condensation defogging layer are provided with front and rear condensation defogging layer side plates, the upper side plate of the ultra-fine demisting layer is arranged above the middle position of the beam II, the front and back condensation demisting layer side plate is connected with the inner surface of the lower end of the left and right ultra-fine demisting layer lower side plate, a cold energy demisting layer blade is arranged between the front and back condensation demisting layer side plates, a left and right ultra-fine demisting layer upper side plate is arranged above the middle position of the beam II, control hyperfine defogging layer curb plate and control hyperfine defogging layer curb plate between the upper end about be equipped with about hyperfine defogging layer blade, be equipped with the backup pad about crossbeam II between both ends link plate II and the desulfurizing tower inner wall, the backup pad upper end is equipped with support square steel III, two parts intermediate position are equipped with the couple about support square steel III, be equipped with conduit VI on the couple, II intermediate position of crossbeam lower surface is equipped with the couple, be equipped with conduit V on the couple.
Furtherly, control venturi blade cross section and be the V-arrangement, control venturi blade upper end surface and be equipped with backward flow hook I, form the decurrent groove of opening between backward flow hook I and the venturi blade surface, control contained angle between the venturi blade and be 130, the venturi blade is two-layer about divideing into, two-layer venturi blade staggered distribution.
Collecting vat bottom welding is on supporting square steel I, the collecting vat both sides face is equipped with V-arrangement hole with controlling the corresponding position of venturi blade, control venturi blade lower extreme surface and the sealed cooperation in the downthehole surface of collecting vat both sides face V-arrangement, control venturi defogging layer side inboard face and be equipped with the V-arrangement draw-in groove with the corresponding position in venturi blade both ends, control in about venturi blade upper end imbeds about in the venturi defogging layer side inboard face V-arrangement draw-in groove.
Control high-efficient defogging layer downside internal surface and be equipped with the wave groove, control high-efficient defroster blade cross-section and be the wave, control high-efficient defroster blade lower extreme and imbed about in the high-efficient defogging layer downside internal surface wave groove, control and be equipped with the unthreaded hole along the distance of settlement on the I direction of high-efficient defogging layer entablature crossbeam, control and link to each other through bolt II between the high-efficient defogging layer entablature board, control high-efficient defogging layer entablature board and be equipped with the wave groove, control high-efficient defogging layer blade upper end and imbed about in the high-efficient defogging layer entablature groove.
The cross section of the condensation demisting layer blade is of a hollow separation type multi-bend structure, and partition plates are uniformly arranged in a cavity of the condensation demisting layer blade along the axis direction of the condensation demisting layer blade.
The utility model discloses a condensation demisting layer side plate, including front and back condensation demisting layer side plate, front and back condensation demisting layer side plate is hollow structure, both ends face is equipped with the limbers respectively around the front and back condensation demisting layer side plate, front and back condensation demisting layer side plate internal surface is equipped with the hole corresponding with condensation demisting layer blade cross section, both ends are gone deep into in the hole of condensation demisting layer side plate internal surface around the condensation demisting layer blade, both ends cooperate with the internal surface seal of front and back condensation demisting layer side plate internal hole around the condensation demisting layer blade.
Control hyperfine defogging layer blade cross-section for taking the many curved structures of return flow hook, control hyperfine defogging layer blade bend topmost surface and be equipped with return flow hook II, return flow hook II forms the downward groove of opening between the hyperfine defogging layer blade surface with controlling, control the part between the two adjacent bends topmost of hyperfine defogging layer blade be the straight line.
Control hyperfine defogging layer downside inboard be equipped with the corresponding shape's in hyperfine defogging layer blade cross-section groove, control hyperfine defogging layer blade one end and imbed about the inboard groove of hyperfine defogging layer downside, control hyperfine defogging layer upside board and be equipped with the corresponding shape's in hyperfine defogging layer blade cross-section groove about, hyperfine defogging layer blade other end imbeds in the groove of hyperfine defogging layer upside board.
Nozzles are radially arranged on the cylindrical surface of the water delivery pipeline I along a set distance, the nozzles are uniformly distributed on the arc surface of the water delivery pipeline I opposite to the lower parts of the left and right Venturi negative-suction demisting layer blades, nozzles are uniformly arranged on the cylindrical surface of the lower half part of the water conveying pipeline II along a set distance in the radial direction, nozzles are uniformly arranged on the upper half cylindrical surface of the water conveying pipeline III along a set distance in the radial direction, nozzles are uniformly arranged on the cylindrical surface of the water conveying pipeline IV along a set distance in the radial direction, the nozzles are uniformly distributed on the arc surface of the water conveying pipeline IV opposite to the upper parts of the left and right high-efficiency demisting layer blades, the cylindrical surface of the water conveying pipeline V is uniformly provided with nozzles along a set distance in the radial direction, the cylindrical surface of the water conveying pipeline VI is provided with nozzles along a set distance in the radial direction, the nozzles are uniformly distributed on the arc surface of the water conveying pipeline VI opposite to the upper part of the ultra-fine demisting layer blade.
The improved desulfurization tower comprises a beam I, a left end face, a right end face, a beam I, a hanging plate I, a left efficient demisting layer lower side plate, a right efficient demisting layer lower side plate, a left efficient demisting layer upper side plate, a right efficient demisting layer upper side plate, a left efficient demisting layer upper side plate, a right efficient demisting layer upper side plate, a left end face, a right end face, a beam II upper side plate, a right end face, a beam, a right end face, a light hole, a right end face, a hyperfine demisting layer lower side plate and a light hole, a hanging plate, and a light hole, wherein the light hole is arranged at a corresponding position of the hanging plate, hyperfine defogging layer downside both sides are equipped with the backup pad about II both ends of crossbeam, the unthreaded hole that backup pad and II unthreaded hole corresponding positions of link plate were equipped with, link plate II, control and connect through bolt III between hyperfine defogging layer downside and the backup pad.
The beneficial effects of the invention are:
1. the combined deep purification device for the desulfurized wet flue gas provided by the invention is purified by four layers, namely a Venturi negative absorption demisting layer, a high-efficiency demisting layer, a condensation demisting layer and a superfine demisting layer, wherein the Venturi negative absorption demisting layer is used for pretreating the flue gas to rectify and remove coarse flue gas, the high-efficiency demisting layer is used for purifying the flue gas with particles such as fine dust-containing droplets and aerogel, the condensation demisting layer is used for condensing ultra-fine mist droplets in the flue gas, the superfine demisting layer is used for further purifying the flue gas which is subjected to front treatment and contains the ultra-fine dust-containing mist droplets, and the four layers of purification can effectively eliminate dust and mist droplets in the flue gas and better filter and purify the flue gas.
2. The cross section of the left and right Venturi blades of the combined deep purification device for the desulfurized wet flue gas is V-shaped, the left and right Venturi blades are divided into an upper layer and a lower layer which are distributed in a staggered manner, the flue gas passes through a gap between the two adjacent upper and lower layers in the rising process, the gap between the two adjacent upper and lower layers is smaller and smaller, the flow speed of the flue gas is faster and faster, relatively lower air pressure is formed inside the Venturi blades, the air flow is caused by the adsorption effect, the flue gas collides with each other at the top ends of the openings of the Venturi blades, small liquid drops in the flue gas collide with each other into large liquid drops, small particles collide with each other into large particles, and the large particles fall into the left and right Venturi blades under the action of self gravity and low-pressure adsorption. Control venturi blade upper end surface and be equipped with backward flow hook I, the flue gas can form local vortex when backward flow hook I, makes the liquid drop in the flue gas and the more abundant collision of dust particle. The contained angle of controlling between the venturi blade is 130, structurally make full use of symmetrical force, it is firm to satisfy the defroster and put forth effort, and the flue gas that the working face contained angle 130 made to rise is abundant even through the blade passageway, guarantees again simultaneously about in the true venturi blade accumulational dusty liquid drop collect the collecting vat that flows to the tank bottom along the inclination in venturi blade groove under the effect of self gravity after certain degree in, derive outside the tower by the collecting vat again, guarantees the interior slurry concentration of tower, improves desulfurization quality. The collected dust-containing water can be used for desulfurization slurry pulping after precipitation, and water resources are saved.
3. The condensation demisting layer blade of the combined type deep purification device for the wet desulfurization flue gas is of a hollow separation type multi-bend structure, and the multi-bend structure can greatly increase centrifugal acceleration, so that the mist in the flue gas fully collides with the blade under the action of multi-redirection. The condensation demisting layer blade is of a hollow structure, cooling water flows through a cavity of the condensation demisting layer blade, smoke is cooled, mist of hot smoke is condensed into liquid drops under the action of condensation, dust-containing liquid drops are attached to the surface of the condensation demisting layer blade and then are collected into liquid drops, an even liquid film can be formed on the surface of the condensation demisting layer blade after condensation, dust and the mist drops are effectively annihilated, the moisture content of the condensed smoke is reduced, the corrosion effect on a chimney at a discharge port is effectively reduced, and the smoke plume phenomenon of the externally discharged smoke is effectively changed. The condensation demisting layer blade cavity is uniformly provided with the partition plates along the axis direction of the condensation demisting layer blade, the partition plates enable condensed water in the condensation demisting layer blade cavity to change layer by layer, the condensed water in the condensation demisting layer blade cavity cannot generate turbulent flow due to rising of temperature, smoke is cooled layer by layer, and the condensation effect is better.
4. The left and right ultra-fine demisting layer blades of the combined type deep purification device for the wet desulfurization flue gas are of a multi-bend structure with a backflow hook, the multi-bend structure is that flue gas fully collides with the blades under the action of multi-redirection, dust-containing liquid drops are attached to the surfaces of the left and right ultra-fine demisting layer blades, and the multi-bend design can also prevent the collected liquid drops from escaping secondarily. The part between the topmost ends of two adjacent bends of controlling hyperfine defogging layer blade is the straight line, can increase the flue gas after the flue gas changes to and control the impact area between the hyperfine defogging layer blade for tiny dust and droplet can be better adhere to on controlling hyperfine defogging layer blade surface, and form stable liquid film at the blade surface, the effectual tiny dust and droplet of annihilating. Control hyperfine defogging layer blade bend topmost surface and be equipped with backward flow hook II, the flue gas can produce local vortex when backward flow hook II, makes the collision that tiny dust and droplet in the flue gas can be better, and purifying effect is better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a cross-sectional view of a venturi blade of the present invention;
FIG. 5 is a venturi blade profile of the present invention;
FIG. 6 is a cross-sectional view of a condensation demisting layer blade according to the present invention;
FIG. 7 is a sectional view of a hyperfine demisting layer blade in accordance with the present invention.
Detailed Description
According to the drawings of fig. 1 to 7, the combined deep purification device for desulfurization wet flue gas comprises a venturi negative absorption demisting layer, a high-efficiency demisting layer, a condensation demisting layer and a hyperfine demisting layer from bottom to top, left and right venturi negative absorption demisting layer side plates 4 are respectively arranged on the left and right sides of the upper end of the venturi negative absorption demisting layer, left and right high-efficiency demisting layer lower side plates 5 are respectively arranged on the left and right sides of the lower end of the high-efficiency demisting layer, a cross beam I1 is arranged between the venturi negative absorption demisting layer and the high-efficiency demisting layer, through holes are arranged at the left and right ends of the cross beam I4 corresponding to the cross beam I, through holes are arranged at the left and right ends of the cross beam I1 through the left and right venturi negative absorption demisting layer side plates 4, through holes are arranged at the left and right high-efficiency demisting layer lower side plates 5 corresponding to the cross beam I, and through holes are arranged at the left and right ends of the cross beam I through holes on the left and right high-efficiency demisting layer lower side plates 5, the left and right efficient demisting layer lower side plates 5 are positioned at the left and right sides of the left and right venturi negative-suction demisting layer side plates 4, the left and right end faces of the beam I1 are connected with the inner wall of the desulfurization tower, hanging plates I2 are respectively arranged between the left and right efficient demisting layer lower side plates 5 and the inner wall of the desulfurization tower at the left and right ends of the beam I1, through holes are arranged at the upper ends of the hanging plates I2 and corresponding to the beam I1, through holes are arranged at the left and right ends of the beam I1, unthreaded holes are respectively arranged at the left and right sides of the beam I1 at the upper end of the hanging plate I2, unthreaded holes are arranged at the left and right efficient demisting layer lower side plates 4 and corresponding to the unthreaded holes at the upper ends of the hanging plates I2, the left and right efficient demisting layer lower side plates 4 are connected with the left and right efficient demisting layer lower side plates 5 through bolts I6, the lower end of the hanging plate I2 is provided with a supporting square steel I3, the lower end of the hanging plate I2 and the corresponding position of the supporting square steel I3 are provided with through holes, the left and right ends of the supporting square steel I3 penetrate through the through holes at the lower end of the hanging plate I2, the middle position of the supporting square steel I3 is provided with a collecting tank 8, the bottom end of the collecting tank 8 is welded on the supporting square steel I3, left and right Venturi blades 7 are respectively arranged between the collecting tank 8 and the left and right Venturi demisting layer side plates 4, the cross sections of the left and right Venturi blades 7 are V-shaped, V-shaped holes are arranged at the two side surfaces of the collecting tank 8 and the corresponding positions of the lower ends of the left and right Venturi blades 7, the outer surfaces of the lower ends of the left and right Venturi blades 7 are in sealing fit with the inner surfaces of the two side surfaces of the collecting tank 8, V-shaped clamping grooves are arranged at the inner side surfaces of the left and right Venturi demisting layer side plates 4 and the corresponding positions of the upper ends of the left and right Venturi blades 7, the upper end of the left and right Venturi blades 7 is embedded into the V-shaped clamping groove on the inner side surface of the left and right Venturi negative-suction demisting layer side plate 4, the included angle between the left and right Venturi blades 7 is 130 degrees, the symmetrical force is structurally fully utilized, the damping force and the stability of a demister are met, the included angle of a working surface is 130 degrees, rising smoke uniformly passes through a blade channel, meanwhile, flushing water can be collected into a collecting groove, the left and right Venturi blades 7 are divided into an upper layer and a lower layer, the upper layer and the lower layer of Venturi blades 7 are distributed in a staggered mode, the Venturi blades 7 adopt the Venturi effect, the smoke passes through the gap between the upper layer and the lower layer of Venturi blades 7 in the rising process, the space is reduced, the flow speed is increased, smoke on the two sides of the Venturi blades 7 rises at a relatively high speed, a certain low-pressure area is formed inside the Venturi blades 7, and the smoke collides above the Venturi blades 7, the mutual collision between the little water droplet in the flue gas forms great water droplet, and little dust particle mutually collides and forms big dust particle, but falls into inside venturi blade 7 under the absorbent effect of self gravity low pressure, and the dusty liquid drop is continuous to be catched in venturi blade groove 8, flows to a certain extent in collecting tank 8 along the slope of venturi blade groove 8 under self gravity. Control 7 upper ends of venturi blades surface and be equipped with backward flow hook I71, form the downward groove of opening between backward flow hook I71 and the 7 surfaces of left and right venturi blades, the flue gas can form local vortex when the I71 of backward flow hook for dust in the flue gas collides with the liquid drop more fully, and purifying effect is better. Hooks 11 are respectively arranged at the middle positions of the left and right parts of a collecting groove 8 on the supporting square steel I3, the hooks 11 are welded on the supporting square steel I3, a water conveying pipeline I9 is arranged on the hooks 11, the water conveying pipeline I9 is supported on the hooks 11, four nozzles 10 are uniformly arranged on the cylindrical surface of the water conveying pipeline I9 along a set distance in the radial direction, the nozzles 10 are uniformly distributed on the arc surface of the water conveying pipeline I9 corresponding to the lower parts of the Venturi blades 7, so that the nozzles 10 can fully clean the lower parts of the left and right Venturi blades, the hooks are welded on the lower surface of the middle position on the cross beam I1, the water conveying pipeline II 12 is supported on the hooks, four nozzles are uniformly arranged on the cylindrical surface of the lower half part of the water conveying pipeline II 12 along the set distance in the radial direction, and can fully wash the grooves of the left and right Venturi blades 7, prevent about the gap jam between the venturi blade 7 to can wash clean with the dirty liquid drop of controlling in the venturi blade 7. A left high-efficiency demisting layer upper side plate 14 and a right high-efficiency demisting layer upper side plate 14 are arranged above the middle position of the beam I1, light holes are arranged along the direction perpendicular to the beam I1 of the left high-efficiency demisting layer upper side plate 14 and along the set distance, the left high-efficiency demisting layer upper side plate 14 and the right high-efficiency demisting layer upper side plate 14 are connected through a bolt II 15, left high-efficiency demisting layer blades and right high-efficiency demisting layer blades are respectively arranged between the left high-efficiency demisting layer lower side plate 5 and the left high-efficiency demisting layer upper side plate 14 and between the left high-efficiency demisting layer lower side plate 5 and the right high-efficiency demisting layer upper side plate 14, the cross section of the left high-efficiency demisting layer blades and the right high-efficiency demisting layer blades 13 is wavy, the positions of the inner surfaces of the left high-efficiency demisting layer lower side plate 5 and the right high-efficiency demisting layer blades 13 are respectively provided with wavy grooves, the bottom ends of the left high-efficiency demisting layer upper side plate 14 and the left high-efficiency demisting layer blades are respectively embedded into the wavy grooves on the inner surfaces of the left high-efficiency demisting layer lower side plate 5, the top ends of the left and right efficient demisting layer blades 13 are respectively embedded into wave-shaped grooves of an upper side plate of the left and right efficient demisting layer, a support seat is arranged on the upper surface of the middle position of the cross beam I1, a water conveying pipeline III 16 is arranged on the support seat, four nozzles are uniformly arranged on the upper half part of the cylindrical surface of the water conveying pipeline III 16 along a set distance in the radial direction, the nozzles can fully wash the lower parts of the left and right efficient demisting layer blades 13, when flue gas with fine dust-containing liquid drops enters gaps between the left and right efficient demisting layer blades 13, gas-liquid separation is realized due to deflection of a streamline and the effect of inertia force carried by the airflow, partial liquid drops are captured when the demister blades collide, the liquid drops are collected on the demister blades continuously, and are separated from the demister blades under the self gravity to a certain degree. And the solid matters remained on the demister blades are recycled in the Venturi demister collecting tank descending under the action of washing water and then are reused after being filtered.
Front and rear condensation demisting layer side plates 21 are respectively arranged at the front and rear ends of the condensation demisting layer, left and right hyperfine demisting layer lower side plates 25 are respectively arranged at the left and right sides of the lower end of the hyperfine demisting layer, a cross beam II 17 is arranged between the condensation demisting layer and the hyperfine demisting layer, through holes are respectively arranged at the positions corresponding to the left and right ends of the hyperfine demisting layer lower side plates 25 and the cross beam II 17, the left and right ends of the cross beam II 17 penetrate through the through holes of the left and right hyperfine demisting layer lower side plates 25, the left and right end surfaces of the cross beam II 17 are connected with the inner wall of the desulfurizing tower, hanging plates II 18 are respectively arranged between the left and right hyperfine demisting layer lower side plates 25 and the inner wall of the desulfurizing tower at the left and right ends of the cross beam II 17, supporting square steel II 19 is arranged at the lower end of the hanging plates II 18, hooks are respectively arranged at the lower surfaces of the left and right intermediate positions of the supporting square steel II 19, the water pipe IV 23 is supported on the hook, nozzles are uniformly arranged on the cylindrical surface of the water pipe IV 23 along a set distance in the radial direction, the nozzles are uniformly distributed on the circular arc surface of the water pipe IV 23 opposite to the upper parts of the left and right high-efficiency demisting layer blades 13, the upper parts of the left and right high-efficiency demisting layer blades 13 can be fully washed, the left and right sides of a beam II 17 at the upper end of the hanging plate II 18 are respectively provided with a light hole, the corresponding positions of the left and right ultra-fine demisting layer lower side plates 25 and the light holes of the hanging plate II 18 are provided with light holes with the same size, supporting plates 29 are respectively arranged between the hanging plates II 18 at the two ends of the beam II 17 and the inner wall of the desulfurization tower, the corresponding positions of the supporting plates 29 and the light holes of the hanging plate II 18 are provided with light holes with the same size, the hanging plates II 18, the left and right ultra-fine demisting layer lower side plates 25 and the supporting plates 29 are connected through bolts III 20, and the front and back condensation demisting layer side plates 21 are welded at the left and right ends of the inner surface of the left and right ultra-fine demisting layer lower side plates 25 In the surface, the condensation demisting layer side plate 21 is of a hollow structure, the front end surface and the rear end surface are respectively provided with a water through hole, a condensation demisting layer blade 22 is arranged between the front condensation demisting layer side plate 21 and the rear condensation demisting layer side plate 21, the cross section of the condensation demisting layer blade 22 is of a hollow separated multi-bend structure, the inner surface of the front condensation demisting layer side plate 21 and the rear condensation demisting layer side plate 21 are provided with multi-bend holes corresponding to the cross section of the condensation demisting layer blade 22, the front end and the rear end of the condensation demisting layer blade 22 are deeply inserted into the multi-bend holes on the inner surface of the condensation demisting layer side plate 21, the front end and the rear end of the condensation demisting layer blade 22 are in sealing fit with the inner surface of the multi-bend holes on the inner surface of the condensation demisting layer side plate 21, cold water enters the cavity of the condensation demisting layer blade 22 through the water through holes on the rear end surface of the condensation demisting layer side plate 21 and finally flows out through the water through holes on the front end surface of the condensation demisting layer side plate 21, and ultra-small fog droplet particles are contacted with a condensation demister in the ascending process, continuously collecting under condensation and condensation of the condensation demister again, and separating from the condenser blades under the gravity of the condenser blades after the condensation is large particles. The condensation demisting layer blade 22 cavity is internally provided with a partition plate 221 along the axis direction of the condensation demisting layer blade 22, the cavity is layered by the partition plate 221, the partition plate 221 enables the temperature of water in the condensation demisting layer blade 22 cavity to be layered, and when flue gas enters gaps between the condensation demisting layer blades 22, water in the cavity cannot generate turbulence, so that the temperature of the surface layer of the condensation demisting layer blade 22 changes layer by layer, and the purification effect is better. Hyperfine defogging layer epipleural 27 about II 17 intermediate position top of crossbeam is equipped with, hyperfine defogging layer epipleural 27 is equipped with the unthreaded hole along the distance of setting for uniformly about controlling hyperfine defogging layer epipleural 27 perpendicular to II 17 axis direction of crossbeam, control and connect through bolt VI 28 between the hyperfine defogging layer epipleural 27, control hyperfine defogging layer epipleural 27 and control hyperfine defogging layer downside 25 between be equipped with respectively about hyperfine defogging layer blade 26, control hyperfine defogging layer blade 26 and form the roof shape, control hyperfine defogging layer blade 26 cross-section for taking the curved structure of return current hook, control hyperfine defogging layer downside 25 inboard and be equipped with and control the corresponding groove in hyperfine defogging layer blade 26 cross-section, control hyperfine defogging layer blade 26 lower extreme imbeds respectively about to control in the inboard groove of controlling hyperfine defogging layer downside 25, control hyperfine defogging layer epipleural 27 is equipped with and control the corresponding groove in hyperfine defogging layer blade 26 cross-section The groove, control hyperfine defogging layer blade 26 upper end and imbed respectively about in the groove of hyperfine defogging layer entablature 27, control the part between the top of the adjacent bend of hyperfine defogging layer blade 26 be the straight line, the flue gas can have partial drifting and rise at the tiny dusty fog of level that produces after front portion handles, and the hyperfine defogging layer blade 25's surface constantly adheres to and collects about under inertial centrifugation's effect, and hyperfine defogging layer blade 25 finally reaches the effect of thoroughly getting rid of the tiny dusty fog drop about breaking away from under the gravity of self to a certain degree. Control hyperfine defogging layer blade 26 curve topmost surface is equipped with backward flow hook II 261, form the groove that the opening is decurrent between backward flow hook II 261 and the hyperfine defogging layer blade 26 surface of controlling, the flue gas can produce local vortex through backward flow hook II 261, increases centrifugal acceleration for water droplet in the flue gas and smoke and dust contact more fully. The lower surface of the middle position of the cross beam II 17 is provided with a hook, the hook is welded on the lower surface of the cross beam II 17, the water pipeline V24 is supported on the hook, eight nozzles are uniformly arranged on the cylindrical surface of the water pipeline V24 along a set distance in the radial direction, the lower half part of the cylindrical surface of the water pipeline V24 is used for washing gaps among the condensing demisting layer blades 22, and the upper half part of the cylindrical surface of the water pipeline V24 is used for washing the lower parts of the left and right hyperfine demisting layer blades 25. The utility model discloses a super fine defogging layer blade 25, including backup pad 29, backup pad 29 upper end, support square steel III 30, couple, water pipe VI 31, four nozzles are evenly equipped with along the distance of setting for on the face of cylinder of water pipe VI 31 along the footpath upwards, the even distribution of nozzle is on the arc surface that water pipe VI 31 corresponds with controlling super fine defogging layer blade 25 upper portion about with support square steel III 30 lower surface welding together, backup pad 29 upper end is equipped with support square steel III 30, support square steel III 30 both ends and pass the through-hole, support square steel III 30 left and right sides two parts intermediate position and be equipped with the couple respectively, couple and support square steel III 30 lower surface welding together, water pipe VI 31 supports on the couple, the nozzle can fully wash about super fine defogging layer blade 25 upper portion, prevent about the gap jam between the super fine defogging layer blade 25.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and various modifications and changes that can be made by those skilled in the art without inventive efforts will still fall within the scope of the present invention.
Claims (3)
1. A combined type deep purification device for desulfurization wet flue gas comprises a Venturi negative absorption demisting layer, a high-efficiency demisting layer, a condensation demisting layer and a hyperfine demisting layer from bottom to top, and is characterized in that left and right Venturi negative absorption demisting layer side plates are arranged on the left and right sides of the upper end of the Venturi negative absorption demisting layer, left and right high-efficiency demisting layer lower side plates are arranged on the left and right sides of the lower end of the high-efficiency demisting layer, the left and right Venturi negative absorption demisting layer side plates are connected with the left and right high-efficiency demisting layer lower side plates, a cross beam I is arranged between the Venturi negative absorption demisting layer and the high-efficiency demisting layer, left and right ends of the cross beam I penetrate through the left and right high-efficiency demisting layer lower side plates, the left and right ends of the cross beam I penetrate through the left and right high-efficiency demisting layer lower side plates and are connected with the inner wall of a desulfurization tower, and a hanging plate I is arranged between the left and right ends of the cross beam I and the inner wall of the desulfurization tower, the lower end of the hanging plate I is provided with a supporting square steel I, the middle position of the supporting square steel I is provided with a collecting groove, left and right Venturi blades are arranged between the left and right end faces of the collecting groove and left and right Venturi negative-suction defogging layer side plates, the middle position of the left and right parts of the collecting groove on the supporting square steel I is provided with a hook, a water pipeline I is arranged on the hook, a hook is arranged on the lower surface of the middle position on the cross beam I, a water pipeline II is arranged on the hook, left and right high-efficiency defogging layer upper side plates are arranged above the middle position on the cross beam I, the left and right high-efficiency defogging layer upper side plates are connected with each other, left and right high-efficiency defogging layer blades are arranged between the left and right high-efficiency defogging layer lower side plates and the left and right high-efficiency defogging layer upper side plates, the upper surface of the middle position on the cross beam I is provided with a supporting seat, the water pipeline III is arranged on the supporting seat, and front and rear ends of the condensation defogging layer are provided with front and rear condensation defogging layer side plates, the upper side plate of the ultra-fine demisting layer is arranged above the middle position of the beam II, the front and back condensation demisting layer side plate is connected with the inner surface of the lower end of the left and right ultra-fine demisting layer lower side plate, a cold energy demisting layer blade is arranged between the front and back condensation demisting layer side plates, a left and right ultra-fine demisting layer upper side plate is arranged above the middle position of the beam II, a left and a right hyperfine demisting layer blades are arranged between the upper side plate of the left and the right hyperfine demisting layer and the upper end of the lower side plate of the left and the right hyperfine demisting layer, a supporting plate is arranged between a hanging plate II at the left and the right ends of the cross beam II and the inner wall of the desulfurizing tower, a supporting square steel III is arranged at the upper end of the supporting plate, a hook is arranged at the middle position of the left and the right parts of the supporting square steel III, a water conveying pipeline VI is arranged on the hook, a hook is arranged on the lower surface of the middle position of the cross beam II, and a water conveying pipeline V is arranged on the hook;
the cross section of each of the left and right Venturi blades is V-shaped, the outer surface of the upper end of each of the left and right Venturi blades is provided with a backflow hook I, a groove with a downward opening is formed between the backflow hook I and the outer surface of each Venturi blade, the included angle between the left and right Venturi blades is 130 degrees, each Venturi blade is divided into an upper layer and a lower layer, and the two layers of Venturi blades are distributed in a staggered manner;
the inner surfaces of the left and right high-efficiency demisting layer lower side plates are provided with wave-shaped grooves, the cross sections of the left and right high-efficiency demister blades are wave-shaped, the lower ends of the left and right high-efficiency demister blades are embedded into the wave-shaped grooves on the inner surfaces of the left and right high-efficiency demisting layer lower side plates, the left and right high-efficiency demisting layer upper side plates are provided with unthreaded holes along a set distance in a direction perpendicular to the direction of the cross beam I, the left and right high-efficiency demisting layer upper side plates are connected through bolts II, the left and right high-efficiency demisting layer upper side plates are provided with wave-shaped grooves, and the upper ends of the left and right high-efficiency demisting layer blades are embedded into the wave-shaped grooves on the left and right high-efficiency demisting layer upper side plates;
the cross section of the condensation demisting layer blade is of a hollow separated multi-bend structure, partition plates are uniformly arranged in a cavity of the condensation demisting layer blade along the axis direction of the condensation demisting layer blade, the front and rear condensation demisting layer side plates are of a hollow structure, water through holes are respectively formed in the front and rear end faces of the front and rear condensation demisting layer side plates, holes corresponding to the cross section of the condensation demisting layer blade are formed in the inner surfaces of the front and rear condensation demisting layer side plates, the front and rear ends of the condensation demisting layer blade penetrate into the holes in the inner surfaces of the condensation demisting layer side plates, and the front and rear ends of the condensation demisting layer blade are in sealing fit with the inner surfaces of the side holes in the front and rear condensation demisting layer side plates;
the cross section of the left and right ultra-fine demisting layer blades is of a multi-bend structure with a backflow hook, the outer surfaces of the topmost ends of the left and right ultra-fine demisting layer blade bends are provided with a backflow hook II, a groove with a downward opening is formed between the backflow hook II and the surfaces of the left and right ultra-fine demisting layer blades, and the part between the topmost ends of the two adjacent bends of the left and right ultra-fine demisting layer blades is a straight line;
nozzles are radially arranged on the cylindrical surface of the water delivery pipeline I along a set distance, the nozzles are uniformly distributed on the arc surface of the water delivery pipeline I opposite to the lower parts of the left and right Venturi negative-suction demisting layer blades, nozzles are uniformly arranged on the cylindrical surface of the lower half part of the water conveying pipeline II along a set distance in the radial direction, nozzles are uniformly arranged on the upper half cylindrical surface of the water conveying pipeline III along a set distance in the radial direction, nozzles are uniformly arranged on the cylindrical surface of the water conveying pipeline IV along a set distance in the radial direction, the nozzles are uniformly distributed on the arc surface of the water conveying pipeline IV opposite to the upper parts of the left and right high-efficiency demisting layer blades, the cylindrical surface of the water conveying pipeline V is uniformly provided with nozzles along a set distance in the radial direction, the cylindrical surface of the water conveying pipeline VI is provided with nozzles along a set distance in the radial direction, the nozzles are uniformly distributed on the arc surface of the water conveying pipeline VI opposite to the upper part of the ultra-fine demisting layer blade;
the bottom end of the collecting tank is welded on the supporting square steel I, V-shaped holes are formed in the positions, corresponding to the left and right Venturi blades, of the two side surfaces of the collecting tank, the outer surfaces of the lower ends of the left and right Venturi blades are in sealing fit with the inner surfaces of the V-shaped holes in the two side surfaces of the collecting tank, V-shaped clamping grooves are formed in the positions, corresponding to the two ends of the left and right Venturi defogging layer side plates, of the inner side surfaces of the left and right Venturi defogging layer side plates, and the upper ends of the left and right Venturi blades are embedded into the V-shaped clamping grooves in the inner side surfaces of the left and right Venturi defogging layer side plates;
the division board makes the comdenstion water in the condensation defogging layer blade cavity change step by step, and the comdenstion water in the condensation defogging layer blade cavity can not produce the turbulent flow because of the rising of temperature, and the flue gas carries out the successive layer cooling.
2. The combined type deep purification device for the desulfurized wet flue gas as claimed in claim 1, wherein the inner sides of the left and right hyperfine demisting layer lower side plates are provided with grooves with corresponding shapes to the sections of the hyperfine demisting layer blades, one ends of the left and right hyperfine demisting layer blades are embedded into the grooves on the inner sides of the left and right hyperfine demisting layer lower side plates, the left and right hyperfine demisting layer upper side plates are provided with grooves with corresponding shapes to the sections of the hyperfine demisting layer blades, and the other ends of the hyperfine demisting layer blades are embedded into the grooves of the hyperfine demisting layer upper side plates.
3. The combined deep purification device for wet desulfurized flue gas according to claim 1, wherein the left and right end faces of said beam I are connected with the inner wall of the desulfurization tower by welding, the left and right sides of the beam I at the upper end of said hanging plate I are respectively provided with a light hole, the left and right Venturi demisting layer side plates are provided with light holes at the positions corresponding to the light holes at the upper end of said hanging plate I, the left and right high-efficiency demisting layer lower side plates are provided with light holes at the positions corresponding to the light holes at the upper end of said hanging plate I, left and right Venturi demisting layer side plates and left and right high-efficiency demisting layer lower side plates are fastened and connected by bolts I, the left and right high-efficiency demisting layer upper side plates are provided with light holes along the set distance, the left and right high-efficiency demisting layer upper side plates are connected by bolts II, the left and right end faces of said beam II are connected with the inner wall of the desulfurization tower by welding, the left and right sides of the beam II at the upper end of said hanging plate II are provided with light holes, control hyperfine defogging layer downside plate and the unthreaded hole that II unthreaded holes of link plate corresponding positions were equipped with, hyperfine defogging layer downside plate both sides are equipped with the backup pad about II both ends of crossbeam, the unthreaded hole that backup pad and II unthreaded holes of link plate corresponding positions were equipped with, link plate II is controlled to be connected through bolt III between hyperfine defogging layer downside plate and the backup pad.
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| CN106861354A (en) * | 2017-03-07 | 2017-06-20 | 永康市常青环保科技有限公司 | A kind of condensation method water saving wet desulfurizer |
| CN106823579A (en) * | 2017-03-28 | 2017-06-13 | 武汉立为工程技术有限公司 | A kind of improved mist eliminator flushing Water pipe bracket |
| CN107158861A (en) * | 2017-05-15 | 2017-09-15 | 四川万康节能环保科技有限公司 | It is a kind of outdoor air is purified after air cleaning unit in input chamber |
| CN110917775A (en) * | 2019-12-17 | 2020-03-27 | 航天凯天环保科技股份有限公司 | High-efficient integration waste gas treatment device |
| CN110903866A (en) * | 2019-12-25 | 2020-03-24 | 平罗县阳光焦化有限公司 | Super fine desulfurizing tower for high-efficient removing organic sulfur |
| CN110964576A (en) * | 2019-12-25 | 2020-04-07 | 平罗县阳光焦化有限公司 | Ultra-deep removal device and process for organic sulfur in coke oven gas |
| CN111363884A (en) * | 2020-04-15 | 2020-07-03 | 柯美瑞(唐山)环保科技有限公司 | Converter primary dust removal flue gas ultra-clean discharging equipment |
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| ATE388748T1 (en) * | 2003-09-09 | 2008-03-15 | Shell Int Research | GAS/LIQUID SEPARATOR |
| CN101487670A (en) * | 2008-12-11 | 2009-07-22 | 朱建发 | Special-shaped passage pipe casing heat exchanger with no baffle plate |
| CN202237591U (en) * | 2011-09-23 | 2012-05-30 | 武汉工程大学 | Novel streamlined two-passage defogger |
| CN103307915A (en) * | 2012-03-07 | 2013-09-18 | 富瑞精密组件（昆山）有限公司 | Flat plate heat pipe |
| CN102716618B (en) * | 2012-05-29 | 2015-01-28 | 东方电气集团东汽投资发展有限公司 | Vane-type demister |
| CN103217052B (en) * | 2013-04-22 | 2015-07-08 | 陆群英 | Fluid distributor |
| CN103550949B (en) * | 2013-11-21 | 2016-01-06 | 智慧城市系统服务（中国）有限公司 | Dedusting demister |
| CN203725020U (en) * | 2014-02-27 | 2014-07-23 | 殷显伟 | Storage tank type demisting, dust-collection and size-removal device and demister |
| CN104667687B (en) * | 2015-01-14 | 2017-03-29 | 田鹏程 | Passive plate rotating vane type dedusting demister and its handling process |
| CN204799047U (en) * | 2015-01-27 | 2015-11-25 | 德梅斯特(上海)环保科技有限公司 | High -efficient dust removal defogging integration equipment and dust removal defogging integration system |
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| CN105688581A (en) * | 2016-04-01 | 2016-06-22 | 中国大唐集团科学技术研究院有限公司 | Liquid film dedusting device and desulfurizer dedusting rectification system with same |
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