CN112808134A - Flue gas desulfurization, denitrification and purification treatment process - Google Patents
Flue gas desulfurization, denitrification and purification treatment process Download PDFInfo
- Publication number
- CN112808134A CN112808134A CN202011638208.8A CN202011638208A CN112808134A CN 112808134 A CN112808134 A CN 112808134A CN 202011638208 A CN202011638208 A CN 202011638208A CN 112808134 A CN112808134 A CN 112808134A
- Authority
- CN
- China
- Prior art keywords
- rotary
- flue gas
- grinding plate
- denitrification
- rotary grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
-
- 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
-
- 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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
- B01F27/11251—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis having holes in the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
- B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
- B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/85—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers on separate shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
- B01F27/951—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis with at least one stirrer mounted on the sun axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
- B01F33/4021—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements the gas being introduced through the shaft of the stirring element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/831—Devices with consecutive working receptacles, e.g. with two intermeshing tools in one of the receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a flue gas desulfurization, denitrification and purification treatment process, in particular to a limestone slurry reducing agent preparation device for flue gas purification, which comprises a rack, a pulping tank, a rotary grinding assembly, an air-blowing stirring mechanism, a fixed grinding plate and a rotary driving mechanism, wherein the rack is provided with a plurality of grinding grooves; the rotary grinding assembly comprises a rotary grinding plate in the shape of a circular truncated cone shell, a rotary connecting frame and a rotary support, and the air-blowing stirring mechanism comprises a main air inlet pipe, a plurality of right-angle bent pipes and a plurality of stirring paddle assemblies; the device related to the process can eliminate large limestone particle components and possible limestone agglomeration through grinding before mixing, can improve the quality of prepared limestone slurry, can also avoid the blockage of a spraying pipeline caused by large limestone particles which are difficult to dissolve in water, and in addition, greatly improves the mixing preparation efficiency through the improved design of a stirring mechanism.
Description
Technical Field
The invention relates to the technical field of waste gas purification treatment, and particularly provides a flue gas desulfurization, denitrification and purification treatment process.
Background
In some industrial production processes, a large amount of exhaust gas containing pollutants such as sulfur, nitrate and the like is generated, and in order to maintain an air environment and achieve standard emission under a certain standard, the exhaust gas needs to be subjected to desulfurization, denitrification and purification treatment.
Limestone used as a reducing agent is generally in the form of fine powder with uniform size, and is mixed with water in the preparation of limestone slurry to be processed into limestone slurry with uniformly dispersed particles; the limestone material can be obtained by adopting the temporary grinding processing of the limestone blocks and can also be prepared from ready-made limestone powder, and the following problems mainly exist in the preparation process of the traditional limestone slurry:
1) the limestone powder subjected to temporary grinding has the problem of uneven particles, caking may exist in the ready-made limestone powder, simple stirring and mixing can be generally performed in the traditional limestone slurry preparation process, limestone does not have water solubility, the limestone slurry is only in a state that limestone fine powder is uniformly mixed and dispersed in water, large limestone particles or limestone caking existing is not eliminated, the quality of the prepared limestone slurry is influenced finally, and blockage in a spraying pipeline system is also possible to be caused;
2) the stirring mechanism of traditional stirring mixing apparatus sets up simply, has the problem that mix effect and mixing efficiency are not high.
Based on the problems, the invention provides a flue gas desulfurization, denitrification and purification treatment process, and particularly relates to a limestone slurry reducing agent preparation device for flue gas purification.
Disclosure of Invention
In order to solve the problems, the invention provides a flue gas desulfurization and denitrification purification treatment process, which is used for solving the problems mentioned in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a flue gas desulfurization, denitrification and purification treatment process specifically comprises the following steps:
s1, flue gas dust removal: the flue gas is intensively introduced into a dust removal device for removing smoke dust, so that waste gas containing sulfide and nitride is obtained;
s2, slurry preparation: processing and preparing limestone slurry through a limestone slurry reducing agent preparation device for flue gas purification;
s3, desulfurization and denitrification: carrying out desulfurization and denitrification treatment on the exhaust gas subjected to dust removal in the step S1 by using the limestone slurry reducing agent prepared in the step S2, and discharging the purified air;
the process of performing desulfurization, denitrification and purification treatment on the flue gas by adopting the flue gas desulfurization, denitrification and purification treatment process of the steps S1-S3 also specifically relates to a limestone slurry reducing agent preparation device for flue gas purification, which comprises a rack, a pulping tank, a rotary grinding assembly, an air-blowing stirring mechanism, a fixed grinding plate and a rotary driving mechanism; the slurrying groove fixed mounting in the frame, wherein:
the rotary grinding assembly is arranged in the pulping groove and comprises a rotary grinding plate in a circular truncated cone shell shape, and a cross-shaped fixing plate is horizontally arranged in the rotary grinding plate;
the air-blowing stirring mechanism comprises a main air inlet pipe, a plurality of right-angle bent pipes and a plurality of stirring paddle components; the main air inlet pipe vertically penetrates through the central shaft of the rotary grinding plate, the main air inlet pipe is vertically and fixedly connected between the top end of the rotary grinding plate and the cross-shaped fixing plate, the right-angle bent pipes are distributed below the rotary grinding plate and fixedly connected with the main air inlet pipe in a penetrating manner, the right-angle bent pipes are uniformly distributed around the circumference of the central shaft of the main air inlet pipe, air holes are uniformly distributed in the vertical parts of the right-angle bent pipes, and the stirring paddle assemblies are arranged on the vertical parts of the right-angle bent pipes in a one-to-one correspondence manner; the stirring paddle component comprises two rotating bearings which are vertically distributed and fixedly installed on the vertical part of the right-angle elbow and a plurality of grating paddles which are fixedly connected between the two rotating bearings, the grating paddles are distributed at equal intervals around the circumference of a rotating central shaft of the rotating bearings, and cleaning bristles are uniformly arranged on the side wall of the grating paddle facing the vertical part of the right-angle elbow;
the fixed grinding plate is in a round table shape and is fixedly installed at the top end of the pulping groove, the fixed grinding plate is positioned right above the rotary grinding plate and is coaxially arranged with the rotary grinding plate, a funnel-shaped feed hopper is arranged at the top end of the fixed grinding plate, a plurality of spray heads are uniformly distributed and fixedly installed on the circumference of the side wall of the feed hopper, and the spray heads extend into the feed hopper;
the rotary driving mechanism is used for driving the rotary grinding plate to rotate.
Preferably, the rotary grinding assembly further comprises a rotary connecting frame and a rotary support, the rotary connecting frame is horizontally and fixedly connected to the outer side wall of the rotary grinding plate, the rotary connecting frame is fixedly connected with the inner ring of the rotary support, and the rotary support is horizontally and fixedly installed on the inner side wall of the pulping groove.
Preferably, the rotary driving mechanism comprises a motor fixing frame, a rotary driving motor, a rotary connecting cylinder and a transmission belt, the motor fixing frame is fixedly installed on the fixed grinding plate, the rotary driving motor is fixedly installed on the motor fixing frame, a driving belt wheel is arranged on an output shaft of the rotary driving motor, the rotary connecting cylinder is fixedly installed at the top end of the rotary grinding plate and coaxially arranged with the rotary grinding plate, a driven belt wheel is arranged on the rotary connecting cylinder, and the driven belt wheel is in transmission connection with the driving belt wheel through the transmission belt.
Preferably, the air-blowing stirring mechanism further comprises a cross scraper, and the cross scraper is fixedly connected with the bottom ends of the vertical parts of the four right-angle bent pipes.
Preferably, the center of the bottom end of the pulping groove is provided with a pulp outlet.
The technical scheme has the following advantages or beneficial effects:
1. the invention provides a flue gas desulfurization, denitrification and purification treatment process, in particular to a limestone slurry reducing agent preparation device for flue gas purification, under the drive of the rotary driving mechanism, the rotary grinding plate in the rotary grinding component is matched with the fixed grinding plate to grind the limestone before mixing with water, by carrying out a grinding treatment before mixing for eliminating the large-particle constituents of the limestone material and possible limestone agglomerates, so that the limestone in the finally prepared slurry will be dispersed in water in the form of fine powder with uniform particle size, can also avoid the blockage of the spraying pipeline caused by larger limestone particles and difficult water dissolution, in addition, set up the shower head in feeder hopper department and realize adding water closely in step when grinding to can tentatively form the limestone slurry state fast in the grinding, thereby improve holistic mixing efficiency.
2. The invention provides a flue gas desulfurization, denitrification and purification treatment process, and particularly relates to a limestone slurry reducing agent preparation device for flue gas purification.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a process flow diagram of a flue gas desulfurization, denitrification and purification treatment process provided by the invention;
FIG. 2 is a schematic perspective view of a limestone slurry reducing agent preparation device for flue gas cleaning provided by the invention;
FIG. 3 is a schematic diagram of a half-sectional perspective structure of a limestone slurry reducing agent preparation device for flue gas purification provided by the invention;
FIG. 4 is an enlarged partial schematic view at A of FIG. 3;
FIG. 5 is a top view of a limestone slurry reducing agent preparation device for flue gas cleaning provided by the invention;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is an enlarged partial schematic view at C of FIG. 6;
fig. 8 is a schematic perspective view of an assembly structure of the rotary truncated cone assembly and the air-blowing stirring mechanism.
In the figure: 1. a frame; 2. a pulping groove; 21. a pulp outlet; 3. a rotary grinding assembly; 31. a rotating grinding plate; 311. a cross-shaped fixing plate; 32. a rotary connecting frame; 33. a slewing bearing; 4. an air-blowing stirring mechanism; 41. a main air inlet pipe; 42. a right-angle bent pipe; 421. air holes; 43. a paddle assembly; 431. a rotating bearing; 432. a grid paddle; 433. cleaning the bristles; 44. a cross-shaped scraper; 5. fixing the grinding plate; 51. a feed hopper; 52. a shower head; 6. a rotation driving mechanism; 61. a motor fixing frame; 62. a rotary drive motor; 621. a drive pulley; 63. a rotary connecting cylinder; 631. a driven pulley; 64. a drive belt.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.
Referring to the attached drawings 1-8, a flue gas desulfurization, denitrification and purification treatment process specifically comprises the following steps:
s1, flue gas dust removal: the flue gas is intensively introduced into a dust removal device for removing smoke dust, so that waste gas containing sulfide and nitride is obtained;
s2, slurry preparation: processing and preparing limestone slurry through a limestone slurry reducing agent preparation device for flue gas purification;
s3, desulfurization and denitrification: carrying out desulfurization and denitrification treatment on the exhaust gas subjected to dust removal in the step S1 by using the limestone slurry reducing agent prepared in the step S2, and discharging the purified air;
the process of performing desulfurization, denitrification and purification treatment on the flue gas by adopting the flue gas desulfurization, denitrification and purification treatment process of the steps S1-S3 also specifically relates to a limestone slurry reducing agent preparation device for flue gas purification, which comprises a rack 1, a pulping tank 2, a rotary grinding assembly 3, an air-blowing stirring mechanism 4, a fixed grinding plate 5 and a rotary driving mechanism 6;
the pulping tank 2 is fixedly arranged on the frame 1; the bottom center of the pulping groove 2 is provided with a pulp outlet 21.
The rotary grinding assembly 3 is arranged in the slurry preparing groove 2, the rotary grinding assembly 3 comprises a rotary grinding plate 31 in a circular truncated cone shell shape, and a cross fixing plate 311 is horizontally arranged in the rotary grinding plate 31; the rotary grinding component 3 further comprises a rotary connecting frame 32 and a rotary support 33, the rotary connecting frame 32 is horizontally welded on the outer side wall of the rotary grinding plate 31, the rotary connecting frame 32 is fixedly connected with the inner ring of the rotary support 33, and the rotary support 33 is horizontally welded on the inner side wall of the pulping groove 2.
The fixed grinding plate 5 is in a circular truncated cone shape and is fixedly installed at the top end of the pulping groove 2, the fixed grinding plate 5 is located right above the rotary grinding plate 31 and is coaxially arranged with the rotary grinding plate, a funnel-shaped feed hopper 51 is arranged at the top end of the fixed grinding plate 5, eight spray heads 52 are uniformly distributed and fixedly installed on the side wall of the feed hopper 51 in a circumferential mode, and the spray heads 52 extend into the feed hopper 51.
The rotary driving mechanism 6 is used for driving the rotary grinding plate 31 to rotate; the rotary driving mechanism 6 comprises a motor fixing frame 61, a rotary driving motor 62, a rotary connecting cylinder 63 and a transmission belt 64, the motor fixing frame 61 is fixedly installed on the fixed grinding plate 5 through bolts, the rotary driving motor 62 is fixedly installed on the motor fixing frame 61 through bolts, a driving belt wheel 621 is arranged on an output shaft of the rotary driving motor 62, the rotary connecting cylinder 63 is welded on the top end of the rotary grinding plate 31 and coaxially arranged with the rotary grinding plate, a driven belt wheel 631 is arranged on the rotary connecting cylinder 63, and the driven belt wheel 631 is in transmission connection with the driving belt wheel 621 through the transmission belt 64.
In the process of performing the slurry preparation treatment process, under the driving of the rotary driving mechanism 6, the rotary grinding plate 31 cooperates with the fixed grinding plate 5 to grind the limestone before mixing with water, the limestone used for preparing the limestone slurry can be zero-time ground or ready-made limestone powder, specifically, when preparing the limestone slurry, the rotary driving motor 62 is started to drive the driving pulley 621 to rotate, the driving pulley 621 drives the driven pulley 631 through the transmission belt 64 to realize the rotation of the rotary connecting cylinder 63, then the rotary grinding plate 31 synchronously rotates along with the rotary connecting cylinder 63, so that the relative rotation between the rotary grinding plate 31 and the fixed grinding plate 5 is realized, the lime stone is put in from the feed hopper 51, and the lime stone slides downwards along the inclined plane of the rotary grinding plate 31 along with the rotation of the rotary grinding plate 31, grinding is carried out under the mutual matching of the rotary grinding plate 31 and the fixed grinding plate 5 (grinding teeth can be processed on the outer surface wall of the rotary grinding plate 31 and the inner surface wall of the fixed grinding plate 5 for enhancing the grinding performance), meanwhile, eight spray headers 52 which are uniformly distributed on the circumference spray water into a feed hopper 51 (the spray headers 52 are communicated with a water pump through water pipes), therefore, water is synchronously added during grinding so that limestone enters the pulping groove 2 in the form of mixed slurry; the limestone material prepared by temporary grinding can be further ground by further grinding, the unevenness of particles of the limestone material prepared by temporary grinding can be eliminated, or the ready-made limestone powder can be ground before mixing, so that the caking possibly existing in the ready-made limestone powder can be eliminated.
The air-blowing stirring mechanism 4 comprises a main air inlet pipe 41, four right-angle bent pipes 42 and four stirring paddle components 43; the main air inlet pipe 41 vertically penetrates through the central shaft of the rotary grinding plate 31, the main air inlet pipe 41 is vertically and fixedly connected between the top end of the rotary grinding plate 31 and the cross fixing plate 311, the four right-angle bent pipes 42 are distributed below the rotary grinding plate 31 and fixedly connected with the main air inlet pipe 41 in a penetrating manner, the four right-angle bent pipes 42 are uniformly distributed on the circumference of the central shaft of the main air inlet pipe 41, air holes 421 are uniformly distributed at the vertical parts of the right-angle bent pipes 42, and the four stirring paddle assemblies 43 are correspondingly arranged on the vertical parts of the four right-angle bent pipes 42 one by one; the stirring paddle assembly 43 comprises two rotating bearings 431 which are vertically distributed and fixedly installed on the vertical part of the right-angle elbow 42 and four grating paddle boards 432 which are fixedly connected between the two rotating bearings 431, the four grating paddle boards 432 are distributed at equal intervals around the circumference of the rotating central shaft of the rotating bearings 431, and cleaning bristles 433 are uniformly arranged on the side wall of the vertical part of the right-angle elbow 42 on the grating paddle boards 432 (when the grating paddle boards 432 are passively rotated, the cleaning bristles 433 can be used for timely cleaning limestone near the air holes 421 to avoid the formation of blocked holes to cause unsmooth air outlet); the air-blowing stirring mechanism 4 further comprises a cross scraper 44, and the cross scraper 44 is fixedly connected with the bottom ends of the vertical parts of the four right-angle bent pipes 42. The main air inlet pipe 41 is connected to the air passage through an air pipe, and allows air to be introduced during the stirring process.
The air-blowing stirring mechanism 4 is arranged on the rotary grinding plate 31, when limestone grinding is carried out, the whole air-blowing stirring mechanism 4 revolves along with the rotary grinding plate 31, in addition, because the grid paddle 432 realizes the rotary arrangement through the rotary bearing 431, the grid paddle 432 also passively revolves while revolving, thereby the effect of mixing and stirring is improved, when stirring is carried out, the air holes 421 distributed on the right-angle elbow 42 can blow air, thereby the effect of mixing and turbulent flow is further improved through the blown air, the mixing speed can be accelerated by matching with the grid paddle 432, the cross scraper 44 synchronously rotates around the central shaft of the rotary grinding plate 31, the inner end surface of the pulping groove 2 can be scraped, and the limestone is prevented from forming sediment accumulation at the bottom layer.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (5)
1. A flue gas desulfurization, denitrification and purification treatment process is characterized in that: the treatment process specifically comprises the following steps:
s1, flue gas dust removal: the flue gas is intensively introduced into a dust removal device for removing smoke dust, so that waste gas containing sulfide and nitride is obtained;
s2, slurry preparation: processing and preparing limestone slurry through a limestone slurry reducing agent preparation device for flue gas purification;
s3, desulfurization and denitrification: carrying out desulfurization and denitrification treatment on the exhaust gas subjected to dust removal in the step S1 by using the limestone slurry reducing agent prepared in the step S2, and discharging the purified air;
the process of performing desulfurization, denitrification and purification treatment on the flue gas by adopting the flue gas desulfurization, denitrification and purification treatment process of the steps S1-S3 also specifically relates to a limestone slurry reducing agent preparation device for flue gas purification, which comprises a rack (1), a pulping tank (2), a rotary grinding assembly (3), an air-blowing stirring mechanism (4), a fixed grinding plate (5) and a rotary driving mechanism (6); pulping groove (2) fixed mounting in on frame (1), wherein:
the rotary grinding assembly (3) is arranged in the pulping groove (2), the rotary grinding assembly (3) comprises a rotary grinding plate (31) in a circular truncated cone shell shape, and a cross fixing plate (311) is horizontally arranged in the rotary grinding plate (31);
the air-blowing stirring mechanism (4) comprises a main air inlet pipe (41), a plurality of right-angle bent pipes (42) and a plurality of stirring paddle components (43); the main air inlet pipe (41) vertically penetrates through the central shaft of the rotary grinding plate (31), the main air inlet pipe (41) is vertically and fixedly connected between the top end of the rotary grinding plate (31) and the cross fixing plate (311), a plurality of right-angle bent pipes (42) are distributed below the rotary grinding plate (31) and are fixedly connected with the main air inlet pipe (41) in a penetrating manner, the right-angle bent pipes (42) are uniformly distributed on the circumference of the central shaft of the main air inlet pipe (41), air holes (421) are uniformly distributed at the vertical parts of the right-angle bent pipes (42), and a plurality of stirring paddle assemblies (43) are correspondingly arranged on the vertical parts of the right-angle bent pipes (42) one by one; the stirring paddle assembly (43) comprises two rotating bearings (431) which are vertically distributed and fixedly installed on the vertical part of the right-angle elbow (42) and a plurality of grating paddles (432) which are fixedly connected between the two rotating bearings (431), the plurality of grating paddles (432) are circumferentially distributed at equal intervals about the rotating central shaft of the rotating bearings (431), and cleaning bristles (4321) are uniformly arranged on the side wall of the grating paddles (432) facing the vertical part of the right-angle elbow (42);
the fixed grinding plate (5) is in a circular truncated cone shape and is fixedly installed at the top end of the pulping groove (2), the fixed grinding plate (5) is located right above the rotary grinding plate (31) and is coaxially arranged with the rotary grinding plate, a funnel-shaped feed hopper (51) is arranged at the top end of the fixed grinding plate (5), a plurality of spray heads (52) are uniformly distributed and fixedly installed on the periphery of the side wall of the feed hopper (51), and the spray heads (52) extend into the feed hopper (51);
the rotary driving mechanism (6) is used for driving the rotary grinding plate (31) to rotate.
2. The flue gas desulfurization, denitrification and purification treatment process according to claim 1, characterized in that: the rotary grinding assembly (3) further comprises a rotary connecting frame (32) and a rotary support (33), the rotary connecting frame (32) is horizontally and fixedly connected to the outer side wall of the rotary grinding plate (31), the rotary connecting frame (32) is fixedly connected with the inner ring of the rotary support (33), and the rotary support (33) is horizontally and fixedly installed on the inner side wall of the pulping groove (2).
3. The flue gas desulfurization, denitrification and purification treatment process according to claim 1, characterized in that: rotary driving mechanism (6) include motor mount (61), rotary driving motor (62), gyration connecting cylinder (63) and driving belt (64), motor mount (61) fixed mounting be in on fixed lapping plate (5), rotary driving motor (62) fixed mounting be in on motor mount (61), be provided with driving pulley (621) on the output shaft of gyration driving motor (62), gyration connecting cylinder (63) fixed mounting be in the top of gyration lapping plate (31) and rather than coaxial setting, be provided with driven pulley (631) on the gyration connecting cylinder (63), driven pulley (631) with pass through between driving pulley (621) driving belt (64) transmission is connected.
4. The flue gas desulfurization, denitrification and purification treatment process according to claim 1, characterized in that: the air-blowing stirring mechanism (4) further comprises a cross scraper (44), and the cross scraper (44) is fixedly connected with the bottom ends of the vertical parts of the four right-angle bent pipes (42).
5. The flue gas desulfurization, denitrification and purification treatment process according to claim 1, characterized in that: the bottom center of the pulping groove (2) is provided with a pulp outlet (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638208.8A CN112808134A (en) | 2020-12-31 | 2020-12-31 | Flue gas desulfurization, denitrification and purification treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638208.8A CN112808134A (en) | 2020-12-31 | 2020-12-31 | Flue gas desulfurization, denitrification and purification treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112808134A true CN112808134A (en) | 2021-05-18 |
Family
ID=75857650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011638208.8A Pending CN112808134A (en) | 2020-12-31 | 2020-12-31 | Flue gas desulfurization, denitrification and purification treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112808134A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413752A (en) * | 2021-06-23 | 2021-09-21 | 湖北明亿节能环保科技有限公司 | Industrial flue gas desulfurization and purification treatment process |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141347A (en) * | 1994-11-18 | 1996-06-04 | Chiyoda Corp | Jet bubbling reaction tank and operation thereof |
| CN107243268A (en) * | 2017-07-31 | 2017-10-13 | 合肥多智科技开发有限公司 | The coating high effective slurry preparation equipment of construction |
| CN206762737U (en) * | 2017-05-24 | 2017-12-19 | 杭州江东富丽达热电有限公司 | Limestone slurry liquid case |
| CN207153611U (en) * | 2017-07-18 | 2018-03-30 | 湖北首云新材料有限公司 | A kind of mixer for producing inorganic loss circulation material |
| CN207371431U (en) * | 2017-07-26 | 2018-05-18 | 靳亚青 | The powder of lacquer putty for use on of building inner wall adds water stirring pulping equipment |
| CN208695124U (en) * | 2018-02-09 | 2019-04-05 | 遵义志得碳塑制品有限责任公司 | A kind of coal grinding device |
| CN209564898U (en) * | 2019-01-30 | 2019-11-01 | 运城学院 | A kind of nano material dispersal device |
| CN210010023U (en) * | 2019-04-22 | 2020-02-04 | 攀枝花市蓝鼎环保科技有限公司 | Limestone wet-grinding pulping device for flue gas desulfurization |
| CN211358820U (en) * | 2019-11-22 | 2020-08-28 | 武汉海力特科技股份有限公司 | Reation kettle of chemical fertilizer anti-caking agent production usefulness |
| CN212167324U (en) * | 2020-05-11 | 2020-12-18 | 云南优力农业发展有限公司 | Mixing structure for proportioning insecticidal liquid medicine |
-
2020
- 2020-12-31 CN CN202011638208.8A patent/CN112808134A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141347A (en) * | 1994-11-18 | 1996-06-04 | Chiyoda Corp | Jet bubbling reaction tank and operation thereof |
| CN206762737U (en) * | 2017-05-24 | 2017-12-19 | 杭州江东富丽达热电有限公司 | Limestone slurry liquid case |
| CN207153611U (en) * | 2017-07-18 | 2018-03-30 | 湖北首云新材料有限公司 | A kind of mixer for producing inorganic loss circulation material |
| CN207371431U (en) * | 2017-07-26 | 2018-05-18 | 靳亚青 | The powder of lacquer putty for use on of building inner wall adds water stirring pulping equipment |
| CN107243268A (en) * | 2017-07-31 | 2017-10-13 | 合肥多智科技开发有限公司 | The coating high effective slurry preparation equipment of construction |
| CN208695124U (en) * | 2018-02-09 | 2019-04-05 | 遵义志得碳塑制品有限责任公司 | A kind of coal grinding device |
| CN209564898U (en) * | 2019-01-30 | 2019-11-01 | 运城学院 | A kind of nano material dispersal device |
| CN210010023U (en) * | 2019-04-22 | 2020-02-04 | 攀枝花市蓝鼎环保科技有限公司 | Limestone wet-grinding pulping device for flue gas desulfurization |
| CN211358820U (en) * | 2019-11-22 | 2020-08-28 | 武汉海力特科技股份有限公司 | Reation kettle of chemical fertilizer anti-caking agent production usefulness |
| CN212167324U (en) * | 2020-05-11 | 2020-12-18 | 云南优力农业发展有限公司 | Mixing structure for proportioning insecticidal liquid medicine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413752A (en) * | 2021-06-23 | 2021-09-21 | 湖北明亿节能环保科技有限公司 | Industrial flue gas desulfurization and purification treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1040930A (en) | Apparatus for desulfurization of waste pases by wet process | |
| CN87100832A (en) | Handle the method and apparatus of power station residues | |
| CN112808134A (en) | Flue gas desulfurization, denitrification and purification treatment process | |
| CN207169597U (en) | A kind of powder stirrer | |
| CN1170644C (en) | Densitying of bulk particulate material | |
| CN106732066A (en) | The mixing device of building materials processing | |
| JPH0633375B2 (en) | Strainer for coal-water slurry | |
| CN1058642C (en) | Equipment for treating solid and/or gas material and method for activation of same | |
| CN209365006U (en) | One kind climbing bucket tilt bed and promotes hopper agitating device | |
| US1931499A (en) | Apparatus for preparing ores for sintering | |
| CN215090480U (en) | Roller mill of misce bene | |
| CN211688781U (en) | Vertical sludge drying device | |
| CN212602565U (en) | Concrete mixer is used in bridge engineering construction | |
| CN211194391U (en) | Ceramic pug compounding is with mixing material device | |
| CN113522452A (en) | Limestone powder pulping equipment | |
| JP5692645B2 (en) | Earth and sand crushing and mixing apparatus and method using the same | |
| CN111111537A (en) | Industrial sewage coagulant feeding method | |
| CN218013137U (en) | Bulk cement filtering device | |
| CN215878352U (en) | Powder concentrator for cement production | |
| CN212978756U (en) | Dry-mixed mortar agitated vessel | |
| CN116036698B (en) | Cellulose filter-pressing jar with even heating function | |
| CN217016222U (en) | Wind power mixing device for processing powdered feed | |
| CN212523506U (en) | Air purification device for building site | |
| CN220642727U (en) | Ammonia separation device for ammonia-containing waste liquid | |
| US1778193A (en) | Mixing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210518 |