CN115845601A - Energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of industrial boiler - Google Patents

Abstract

The invention belongs to the technical field of desulfurization and denitrification, and relates to an energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of an industrial boiler, which comprises a boiler, a cloth bag dust removal box and a purification tower which are sequentially connected, wherein the output end of the boiler is communicated with the input end of the cloth bag dust removal box through a guide pipe, the output end of the cloth bag dust removal box is communicated with an induced draft fan, the output end of the induced draft fan is communicated with a smoke inlet pipe, the smoke inlet pipe penetrates through the purification tower and extends into the purification tower, and the cloth bag dust removal box comprises a filter box body, an ash bucket, a smoke inlet box, a smoke outlet box, a partition plate, an electrostatic dust removal assembly for primarily filtering the flue gas and dust and a cloth bag dust removal assembly for secondarily filtering the flue gas and dust. According to the invention, the electrostatic dust collection assembly and the cloth bag dust collection assembly are used for adsorbing, filtering and removing dust, the dust can be cleaned, the dust removal effect is improved, the flue gas is fully contacted with the denitration catalyst and the desulfurizer through the purification mechanism, and the purification efficiency is improved.

Description

Energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of industrial boiler

Technical Field

The invention relates to the technical field of desulfurization and denitrification, in particular to an energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of an industrial boiler.

Background

A large amount of coal needs to be combusted in the working process of a thermal power plant, and because the coal is mined and then has more sulfides and nitrates, the sulfides and the nitrates flow along with flue gas in the combustion process of the coal and the substances are directly discharged into the air, so that the efficiency of pollutant diffusion is improved to a great extent, the living environment of people around is influenced, and the living condition of the people is worsened.

When the industrial boiler is used, a large amount of flue gas can be discharged, and if the flue gas is not discharged after treatment, the environment is easily subjected to irreversible pollution.

Through the retrieval, chinese utility model patent that the publication number of granting is CN213790900U discloses an energy-concerving and environment-protective device of industrial boiler flue gas desulfurization denitration, and it includes the box, one side fixed mounting of box has the intake pipe, and one side bottom fixed mounting of box has the water pump, and one side fixed mounting of water pump has the one end of first water pipe, and in the other end of first water pipe extended to the box, the top fixed mounting of water pump had the one end of second water pipe. This patent can be to the gas treatment emission after purifying, has avoided the pollution to the environment, the effectual purification efficiency that improves the flue gas, and can be to SOx/NOx control agent recycle, has avoided the waste to SOx/NOx control agent, and is energy-concerving and environment-protective.

However, the above patents still have some disadvantages: the flue gas that produces when the boiler burning contains a large amount of dusts, and the flue gas in this patent is not through removing dust, influences the SOx/NOx control effect of flue gas easily, and simultaneously, the inside flue gas of box is shorter with SOx/NOx control catalyst contact time, and the flue gas SOx/NOx control effect that the less scheduling problem of contact surface leads to is poor.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the invention provides an energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of an industrial boiler, aiming at solving the problems of unsatisfactory dedusting effect, short contact time of the flue gas and a desulfurization and denitrification catalyst and small contact surface.

The invention provides an industrial boiler flue gas desulfurization and denitrification energy-saving and environment-friendly device which comprises a boiler, a cloth bag dust removal box and a purification tower, wherein the boiler, the cloth bag dust removal box and the purification tower are sequentially connected, the output end of the boiler is communicated with the input end of the cloth bag dust removal box through a guide pipe, the output end of the cloth bag dust removal box is communicated with an induced draft fan, the output end of the induced draft fan is communicated with a smoke inlet pipe, the smoke inlet pipe penetrates through the purification tower and extends into the purification tower, the cloth bag dust removal box comprises a filtering box body, an ash bucket, an air inlet smoke box, an air outlet smoke box, a partition plate, an electrostatic dust removal assembly for primarily filtering flue gas and dust and a cloth bag dust removal assembly for secondarily filtering the flue gas and dust, the air inlet smoke box and the air outlet smoke box are respectively arranged at two ends of the filtering box, the ash bucket is fixedly connected to the bottom of the filtering box, the partition plate is fixedly connected to the middle part of the filtering box body, the partition plate divides the filtering box into a first filtering chamber and a second filtering chamber, the first filtering chamber is communicated with the air inlet smoke box, the second filtering chamber is communicated with the air outlet smoke box, the electrostatic dust removal assembly and the cloth bag dust removal assembly are respectively arranged in the first filtering chamber and the second filtering chamber, and the purification mechanism for desulfurization and denitrification of the purification tower are arranged in the first filtering chamber are arranged in the purification tower.

Preferably, the electrostatic precipitator subassembly includes a plurality of dwang, a plurality of static board, mounting box, is used for driving all static board pivoted drive assembly and a plurality of and is used for shaking the subassembly of strikeing that falls the dust on the static board, all the dwang from top to bottom evenly sets up inside first filter chamber, the dwang both ends are rotated with mounting box and division board respectively through the pivot and are connected, and the equal fixed cover of all static boards is established on the dwang, the static board includes anodal discharge panel and negative pole discharge panel, anodal discharge panel and negative pole discharge panel are crisscross setting, the mounting box is fixed to be set up at the smoke box that admits air and filters box middle part junction, both ends run through respectively about the mounting box and filter the box and extend to and filter the box outside, drive assembly is connected with all dwang transmissions, and all strike the subassembly and evenly set up between two adjacent dwangs.

Preferably, drive assembly includes the first gear of a plurality of and two second gears, all the one end of dwang is run through inside the mounting box extends to the mounting box, and rotates with the mounting box through the bearing and be connected, and all first gear cover are established on all dwangs, two the second gear rotates respectively and sets up both ends about the mounting box is inside, and the transmission is connected with first driving chain between one of them second gear and one of them first gear, and the transmission is connected with the second driving chain between another second gear and other first gears, the upper and lower both ends of filtering the box all are provided with driving motor, two the driving motor output shaft respectively with two second gear fixed connection.

Preferably, the width of the electrostatic plate close to the inner top wall of the filtering box is smaller than the width of the rest of the electrostatic plates.

Preferably, the subassembly of strikeing includes dead lever and a plurality of conflict part, the dead lever level sets up two between the dwang, just the dead lever both ends respectively with mounting box and division board fixed connection, the conflict part evenly sets up on the dead lever, the conflict part includes that two are the fixed cylinder of diagonal angle setting in the dead lever both sides and two activity pegs graft at the inside telescopic link of two fixed cylinders, fixedly connected with spring between telescopic link and the fixed cylinder, the spring is located inside the fixed cylinder, the circular touch multitouch of propping of fixed cylinder one end fixedly connected with is kept away from to the telescopic link.

Preferably, the sack dust removal subassembly includes that a plurality of filter bag, fly leaf and two are used for driving the fly leaf and carry out the pneumatic cylinder that the horizontal direction removed, all the filter bag all is the slope form and sets up inside second filter chamber, all evenly distributed between the filter bag, the fly leaf slides and sets up in the second filter chamber, the filter bag both ends respectively with division board and fly leaf fixed connection, all set up the air guide hole that can communicate with the filter bag on division board and the fly leaf, two the pneumatic cylinder is installed respectively in division board bottom both sides, two the output shaft and the fly leaf fixed connection of pneumatic cylinder, division board top symmetry is provided with two guide bars, the guide bar both ends respectively with division board and filtration box fixed connection, the spacing hole that can supply the guide bar to pass is all seted up to fly leaf roof both sides.

Preferably, purify the mechanism and include first mounting panel, second mounting panel, third mounting panel, guide funnel, be used for carrying out the rotating electrical machines that rotate with the hybrid module of flue gas and denitration catalyst, desulfurizer flash mixed and being used for driving the hybrid module, first mounting panel, second mounting panel and third mounting panel from top to bottom are the level in proper order and are set up inside the purge tower, the guide funnel is installed on first mounting panel, a plurality of smoke guide hole has been seted up to second mounting panel one side, the hybrid module is installed on the second mounting panel, the hybrid module is located the guide funnel under, the rotating electrical machines is installed under the third mounting panel, the rotating electrical machines is connected with the hybrid module transmission.

The utility model discloses a flue gas purification device, including purification tower lateral wall, inlet pipe, air duct and row's material pipe, the inlet pipe is located the guide funnel directly over from top to bottom on the purification tower lateral wall, the air duct is located under the first mounting panel, the draught fan output is located under the second mounting panel, arrange the material pipe and be located the third mounting panel directly over keep away from the one side of advancing the tobacco pipe, and with the third mounting panel links up.

Preferably, the mixing assembly comprises a hopper and an adsorption cylinder, the hopper is rotatably arranged at the middle part of the second mounting plate, the hopper is positioned under a discharge port of the diversion funnel, a plurality of air inlets are uniformly formed in the top of the hopper along the circumferential direction, the inside fixedly connected with of the purification tower is used for limiting lantern rings on the hopper, a diversion port is formed in the inner bottom wall of the hopper, the adsorption cylinder is fixedly connected to the inner bottom wall of the hopper and communicated with the diversion port, a plurality of through holes are uniformly formed in the inner wall of the adsorption cylinder along the circumferential direction, and a rotating gear is fixedly connected to the bottom of the hopper.

Preferably, a plurality of smoke guide holes are formed in one side of the second mounting plate and are arranged on the inner bottom wall of the purification tower, the output shaft of the rotating motor penetrates through the third mounting plate and extends to the bottom of the second mounting plate, a transmission gear is sleeved on the output shaft of the rotating motor, and the transmission gear is meshed with the rotating gear.

The invention has the beneficial effects that:

according to the energy-saving and environment-friendly device for desulfurization and denitrification of the flue gas of the industrial boiler, dust in the flue gas is adsorbed through the electrostatic dust removal assembly, preliminary dust removal is performed on the flue gas, the plurality of electrostatic plates are driven to rotate through the driving assembly, when all the electrostatic plates rotate to be inclined, the dust on the top of the electrostatic plates slides down along the surfaces of the electrostatic plates, and the dust falls into the dust hopper from gaps generated between the rotated electrostatic plates and the filtering box body to be collected, so that the effect of rapid dust removal is achieved.

Secondly, according to the energy-saving and environment-friendly device for flue gas desulfurization and denitration of the industrial boiler, through the matching of the knocking component and the rotating rod, the inclined plate can collide with the circular collision block while falling ash in a reciprocating inclined manner, the circular collision block is knocked on the electrostatic plate through the resilience force of the spring, the dust on the electrostatic plate is shaken off, and the cleaning effect of the electrostatic plate can be greatly improved after the circular collision block is knocked off repeatedly.

Thirdly, according to the energy-saving and environment-friendly device for desulfurization and denitrification of flue gas of the industrial boiler, secondary dust removal is performed in the cloth bag dust removal assembly, dust-containing gas is filtered by using the filtering effect of the fiber fabric, fine, dry and non-fibrous dust can be effectively collected, the dust removal effect is further improved, the filter bag is driven by the hydraulic cylinder to be folded and stretched, the dust can be shaken off when the filter bag is folded and stretched by the inclined arrangement of the filter bag, the filter bag can be quickly cleaned without being detached, and the dust is very convenient to clean.

Fourthly, according to the energy-saving and environment-friendly device for desulfurization and denitrification of the flue gas of the industrial boiler, the denitration catalyst and the desulfurizer rotate in the hopper through the arrangement of the purification mechanism, the flue gas enters the hopper and can fully contact with the denitration catalyst and the desulfurizer to absorb sulfur dioxide in the flue gas, the aim of desulfurization is finally achieved, and the situation that the purification efficiency is influenced due to the fact that the denitration catalyst and the desulfurizer are stacked due to too low flow speed of the flue gas is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of an industrial boiler flue gas desulfurization and denitrification energy-saving and environment-friendly device of the present invention;

FIG. 2 is a sectional view of the internal structure of the cloth bag dust removal box;

FIG. 3 is a first schematic diagram showing a partial structure of an electrostatic precipitator assembly;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a second schematic view showing a disassembled partial structure of the electrostatic precipitator assembly;

FIG. 6 is a sectional view of the inner structure of the mounting box;

FIG. 7 is a schematic diagram of a disassembled structure of a bag-type dust-collecting component;

FIG. 8 is a sectional view of the internal structure of the purification tower;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

fig. 10 is a partial structural view of the hybrid module.

Reference numerals: 1. a boiler; 2. a cloth bag dust removal box; 3. a purification tower; 4. a filter box body; 41. a first filtering chamber; 42. a second filtering chamber; 5. an ash hopper; 6. an air inlet smoke box; 7. a smoke outlet box; 8. a partition plate; 9. an electrostatic dust removal assembly; 91. rotating the rod; 92. an electrostatic plate; 921. a positive discharge plate; 922. a negative discharge plate; 93. mounting a box; 94. a drive assembly; 941. a first gear; 942. a second gear; 943. a first drive chain; 944. a second drive chain; 95. a knocking component; 951. fixing the rod; 952. an abutting member; 953. a fixed cylinder; 954. a telescopic rod; 955. a circular contact block; 96. a drive motor; 10. a bag house dust removal assembly; 101. a filter bag; 102. a movable plate; 103. a hydraulic cylinder; 104. a gas-guide hole; 105. a guide bar; 11. a purification mechanism; 111. a first mounting plate; 112. a second mounting plate; 113. a third mounting plate; 114. a material guide hopper; 115. a mixing assembly; 116. a rotating electric machine; 117. a feed pipe; 118. an air duct; 119. a discharge pipe; 120. a hopper; 121. an adsorption cylinder; 122. an air inlet; 123. a collar; 124. a flow guide port; 125. a through hole; 126. a rotating gear; 127. a transmission gear; 128. a smoke guide hole; 12. an induced draft fan; 13. a smoke inlet pipe.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

In this embodiment, as shown in fig. 1 to 8, an energy-saving and environment-friendly device for desulfurization and denitration of flue gas of an industrial boiler comprises a boiler 1, a bag dust removal box 2 and a purification tower 3 which are connected in sequence, wherein an output end of the boiler 1 is communicated with an input end of the bag dust removal box 2 through a conduit, an output end of the bag dust removal box 2 is communicated with an induced draft fan 12, an output end of the induced draft fan 12 is communicated with a flue gas inlet pipe 13, the flue gas inlet pipe 13 penetrates through the purification tower 3 and extends into the purification tower 3, the bag dust removal box 2 comprises a filter box body 4, an ash hopper 5, an air inlet smoke box 6, an air outlet smoke box 7, a partition plate 8, an electrostatic dust removal assembly 9 for primarily filtering flue gas and dust and a bag dust removal assembly 10 for secondarily filtering flue gas and dust, the air inlet smoke box 6 and the air outlet smoke box 7 are respectively arranged at two ends of the filter box body 4, the ash hopper 5 is fixedly connected to the bottom of the filter box body 4, the partition plate 8 is fixedly connected to the middle of the filter box body 4, the partition plate 8 divides the filter box 4 into a first filter chamber 41 and a second filter chamber 42, the first filter chamber 41 is communicated with the second filter chamber 42, and a second filter chamber 11 for purifying filter chamber 11 for filtering flue gas purification chamber for filtering flue gas purification and a second chamber 11 for filtering flue gas purification chamber of the flue gas purification chamber 3 are arranged in the filter chamber 3; inside boiler 1 during operation produced flue gas entered into sack dust removal case 2 through the pipe, the flue gas at first entered into first filter chamber 41 from inlet flue gas case 6, when flue gas and dust passed through, adsorbed the dust in the flue gas through electrostatic precipitator subassembly 9, utilized the tiny granule in the electrostatic absorption dusty gas, the flue gas enters into the inside sack dust removal subassembly 10 of second filter chamber 42 afterwards and carries out the secondary dust removal, further improves dust removal effect.

However, because the electrostatic plates 92 in the prior art are vertically arranged, when the flue gas passes through the electrostatic plates 92, a part of the flue gas can enter the ash bucket 5 and then flow out of the other side of the ash bucket 5 into the first filtering chamber 41, and then is conveyed to the second filtering chamber 42, the time of the part of the flue gas passing through the electrostatic plates 92 is short, and the adsorbed dust is less, so that the dust removal effect is not good, therefore, the electrostatic dust removal assembly 9 is arranged in the first filtering chamber 41, the electrostatic dust removal assembly 9 comprises a plurality of rotating rods 91, a plurality of electrostatic plates 92, a mounting box 93, a driving assembly 94 for driving all the electrostatic plates 92 to rotate, and a plurality of knocking assemblies 95 for shaking off the dust on the electrostatic plates 92, all the rotating rods 91 are uniformly arranged in the first filtering chamber 41 from top to bottom, two ends of the rotating rods 91 are respectively rotatably connected with the mounting box 93 and the partition plate 8 through rotating shafts, all the rotating rods 92 are fixedly sleeved on the rotating rods 91, the electrostatic plate 92 comprises an anode discharge plate 921 and a cathode discharge plate 922, the anode discharge plate 921 and the cathode discharge plate 922 are arranged in a staggered manner, the mounting box 93 is fixedly arranged at the joint of the middle parts of the air inlet smoke box 6 and the filter box 4, the upper end and the lower end of the mounting box 93 respectively penetrate through the filter box 4 and extend to the outside of the filter box 4, the driving component 94 is in transmission connection with all the rotating rods 91, all the knocking components 95 are uniformly arranged between the two adjacent rotating rods 91, the electrostatic plate 92 in the embodiment is rotatably arranged in the first filter chamber 41 through the rotating rods 91, when dust is removed from smoke, the electrostatic plate 92 is arranged in a horizontal state, when the electrostatic plate 92 is in a horizontal state, the two ends of the electrostatic plate are in contact with the filter box 4 to seal the ash bucket 5 and the second filter chamber 42, when the smoke passes through the electrostatic plate 92, the anode discharge plate 921 and the cathode discharge plate 922 are electrified to respectively obtain positive charges or negative charges, the flue gas enters the second filter chamber 42 from the channel formed between the positive electrode discharge plate 921 and the negative electrode discharge plate 922, the fine particles with positive charge in the gas are mixed with the coarse particles with negative charge flowing out from the adjacent negative electrode channel, and meanwhile, the fine particles with negative charge are mixed with the coarse particles with positive charge, so that the number of the fine particles is reduced, the dust particles with the particle size larger than 10 micrometers and easy to remove are formed, and the dust removal efficiency is improved.

When dust adsorbed on the electrostatic plate 92 needs to be cleaned, the electrostatic plate 92 is powered off, then all the electrostatic plates 92 are driven to rotate through the driving assembly 94, so that the electrostatic plates 92 rotate to an inclined state, the driving assembly 94 comprises a plurality of first gears 941 and two second gears 942, one end of each rotating rod 91 penetrates through the mounting box 93 and extends into the mounting box 93, and is rotatably connected with the mounting box 93 through a bearing, all the first gears 941 are sleeved on all the rotating rods 91, the two second gears 942 are respectively rotatably arranged at the upper end and the lower end inside the mounting box 93, a first transmission chain 943 is in transmission connection between one second gear 942 and one of the first gears 941, a second transmission chain 944 is in transmission connection between the other second gear 942 and the other first gears 941, and the upper end and the lower end of the filter box 4 are both provided with driving motors 96, the output shafts of the two driving motors 96 are respectively fixedly connected with the two second gears 942, the driving motor 96 at the top of the filtering box 4 drives the first transmission chain 943 to rotate, so as to drive one electrostatic plate 92 close to the top of the filtering box 4 to rotate until one end of the electrostatic plate 92 is abutted against the top wall of the filtering box 4, then the driving motor 96 at the bottom of the filtering box 4 drives the second transmission chain 944 to rotate, so as to drive all the first gears 941 to rotate, drive the rest of the rotating rods 91 to rotate, so as to drive the rest of the electrostatic plates 92 to be abutted against the first electrostatic plate 92, when all the electrostatic plates 92 are rotated to be inclined, dust at the top of the electrostatic plates 92 slides down along the surface of the electrostatic plates 92, the dust falls into the dust hopper 5 from a gap generated between the electrostatic plates 92 and the filtering box 4 to be collected, so that the dust on the electrostatic plates 92 can be shaken off rapidly by repeatedly rotating the electrostatic plates 92, therefore, the dust cleaning efficiency is improved, and it is worth noting that, because the distance between the first electrostatic plate 92 and the inner top wall of the filter box 4 is smaller, in order to make the dust on the surface slide down, the width of the electrostatic plate 92 close to the inner top wall of the filter box 4 is smaller than the width of the rest electrostatic plates 92, so that under the condition that the other electrostatic plates 92 seal the first filter chamber 41, the rotating angle of the first electrostatic plate 92 is increased, and the rotating angle of the rest electrostatic plates 92 is increased.

Adsorb the dust of electrostatic plate 92 upper surface though can through its rotation slope landing, but its turned angle is less, in order to clear up the dust more thoroughly, set up knocking component 95 at dwang 91 top, produce vibrations effect with its conflict when electrostatic plate 92 rotates and shake the dust, knocking component 95 includes dead lever 951 and a plurality of conflict part 952, dead lever 951 level sets up between two dwang 91, and dead lever 951 both ends respectively with mounting box 93 and division board 8 fixed connection, conflict part 952 evenly sets up on dead lever 951, conflict part 952 includes that two are the fixed cylinder 953 and two activities of diagonal angle setting in dead lever 951 both sides peg graft at the inside telescopic link of two fixed cylinders 953, fixedly connected with spring between telescopic link 954 and the fixed cylinder 953, the spring is located inside the fixed cylinder 953, telescopic link 954 keeps away from the circular contact block 955 that supports when electrostatic plate 92 rotates with all contact part conflict parts that set up on dead lever 951, because the slip setting is in fixed cylinder 954, and there is fixed between the two 953, therefore the fixed spring 953 one end fixedly connected with circular contact block 955 when electrostatic plate 92 can make the electrostatic plate 92 shake the electrostatic plate 92, the telescopic link 955 when the electrostatic plate 92 is rotated repeatedly, the electrostatic plate 92, the telescopic link 955 that the electrostatic plate 92 can make the electrostatic plate 92 rebound effect of reciprocating and shake.

Because the flue gas not only contains a large amount of dust, but also contains a plurality of smaller particle layers, a bag-type dust removal assembly 10 is arranged in the second filter chamber 42 to filter the smaller particle layers in the flue gas, the bag-type dust removal assembly 10 comprises a plurality of filter bags 101, a movable plate 102 and two hydraulic cylinders 103 for driving the movable plate 102 to move in the horizontal direction, all the filter bags 101 are obliquely arranged in the second filter chamber 42, all the filter bags 101 are uniformly distributed, the movable plate 102 is slidably arranged in the second filter chamber 42, two ends of each filter bag 101 are respectively fixedly connected with the partition plate 8 and the movable plate 102, air guide holes 104 which can be communicated with the filter bags 101 are respectively arranged on the partition plate 8 and the movable plate 102, the two hydraulic cylinders 103 are respectively arranged at two sides of the bottom of the partition plate 8, output shafts of the two hydraulic cylinders 103 are fixedly connected with the movable plate 102, and two guide rods 105 are symmetrically arranged at the top of the partition plate 8, the two ends of the guide rod 105 are respectively fixedly connected with the partition plate 8 and the filter box body 4, the two sides of the top plate of the movable plate 102 are respectively provided with a limiting hole through which the guide rod 105 can penetrate, when smoke enters the plurality of filter bags 101, the air intake of the smoke can be more uniform, the damage of the filter bags 101 caused by the impact of the smoke is reduced, the filtering burden of the filter bags 101 is lightened, meanwhile, the filter bags 101 in the embodiment adopt textile filter cloth, the dust-containing gas is filtered by utilizing the filtering action of fiber fabric, the fine, dry and non-fibrous dust can be effectively collected, and along with the increase of the filtering process, some large dust particles are blocked on the body surface of the filter bags 101 to form a small particle layer, the pore diameter of the surface of the filter bags 101 is reduced, the guide rod can block more small particles, and the small particle layer is attached to the inner surface of the filter bags 101, when needs clear up filter bag 101, drive fly leaf 102 through two pneumatic cylinders 103 and carry out reciprocating motion along guide bar 105, thereby make all filter bags 101 fold tensile, and the slope form setting of filter bag 101 can shake off the dust gathering when its is folding tensile, along flue gas incline direction landing to ash bucket 5 in, need not dismantle filter bag 101 and can clear up it fast, it is very convenient to clear away the dust, avoids using for a long time and influences its filtering quality.

The purification mechanism 11 comprises a first mounting plate 111, a second mounting plate 112, a third mounting plate 113, a material guide funnel 114, a mixing assembly 115 for rapidly mixing flue gas with denitration catalyst and desulfurizer, and a rotating motor 116 for driving the mixing assembly 115 to rotate, wherein the first mounting plate 111, the second mounting plate 112, and the third mounting plate 113 are sequentially and horizontally arranged inside the purification tower 3 from top to bottom, the material guide funnel 114 is mounted on the first mounting plate 111, the mixing assembly 115 is mounted on the second mounting plate 112, one side of the second mounting plate 112 is provided with a plurality of smoke guide holes 128, the mixing assembly 115 is positioned under the material guide funnel 114, the rotating motor 116 is mounted under the third mounting plate 113, the rotating motor 116 is in transmission connection with the mixing assembly 115, the flue gas from the boiler 1 is filtered by the cloth bag dust removal box 2, and is pumped into the purification tower 3 by the induced draft fan 12, after the flue gas containing sulfur and nitrate is subjected to desulfurization and denitrification through the desulfurization and denitrification tank body by the purification mechanism 11, sulfur oxides and nitrogen oxides in the flue gas are effectively removed to meet the requirements of manufacturers and local environmental protection departments, when the flue gas is conveyed into the purification tower 3 from the smoke inlet pipe 13 by the induced draft fan 12, the side wall of the purification tower 3 is sequentially provided with a feed pipe 117, an air duct 118 and a discharge pipe 119 from top to bottom, the feed pipe 117 is positioned right above the guide funnel 114, the air duct 118 is positioned right below the first mounting plate 111, the output end of the induced draft fan 12 is positioned right below the second mounting plate 112, the discharge pipe 119 is positioned right above the third mounting plate 113 and far away from the smoke inlet pipe 13 and is connected with the third mounting plate 113, the denitrification catalyst and the desulfurizer enter the guide funnel 114 through the feed pipe 117 and then fall into the mixing assembly 115, the flue gas enters between the second mounting plate 112 and the third mounting plate 113 in the purification tower 3 through the smoke inlet pipe 13, enter into between first mounting panel 111 and the second mounting panel 112 through smoke guide 128 afterwards, enter into in the mixed subassembly 115 afterwards and denitration catalyst, the desulfurizer mixes, oxygen and nitric oxide in the flue gas generate nitrogen dioxide under the catalyst catalytic reaction, nitrogen dioxide is reduced by the carbon monoxide that generally all exists in the flue gas and becomes nitrogen gas and generate carbon dioxide, can realize the desulfurization, the denitration, demercuration, the multi-pollutant cooperative control of dust removal integration, can make denitration catalyst, the desulfurizer mixes more evenly through the flow of flue gas self and the cooperation of mixed subassembly 115, make desulfurization denitration all obtain good effect, flue gas purification's quality has been improved.

When flue gas passes through a denitration catalyst and is subjected to desulfurization and denitration treatment by a desulfurizer, the flow speed of the flue gas is too slow, the denitration catalyst and the desulfurizer are accumulated, and the purification efficiency is affected, therefore, the flue gas and the denitration catalyst are accelerated to be mixed by arranging the mixing assembly 115, so that the desulfurization and denitration efficiency of the flue gas is improved, the mixing assembly 115 comprises a hopper 120 and an adsorption cylinder 121, the hopper 120 is rotatably arranged in the middle of the second mounting plate 112, the hopper 120 is positioned under a discharge port of a guide funnel, a plurality of air inlets 122 are uniformly formed in the top of the hopper 120 along the circumferential direction, a lantern ring 123 for limiting the hopper 120 is fixedly connected inside the purification tower 3, a guide opening 124 is formed in the inner bottom wall of the hopper 120, the adsorption cylinder 121 is fixedly connected to the inner bottom wall of the hopper 120 and is communicated with the guide opening 124, a plurality of through holes 125 are uniformly formed in the inner wall of the adsorption cylinder 121 along the circumferential direction, the bottom of the hopper 120 is fixedly connected with a rotating gear 126, after entering the hopper 120, the denitration catalyst and the desulfurizer rotate by being driven by the rotating motor 116, the rotating motor 116 is installed on the inner bottom wall of the purifying tower 3, the output shaft of the rotating motor 116 penetrates through the third installation plate 113 and extends to the bottom of the second installation plate 112, the output shaft of the rotating motor 116 is sleeved with a transmission gear 127, the transmission gear 127 is meshed with the rotating gear 126, when the output shaft of the rotating motor 116 rotates, the transmission gear 127 is driven to rotate, so as to drive the rotating gear 126 to rotate, so that the hopper 120 rotates, meanwhile, the denitration catalyst and the desulfurizer rotate in the hopper 120, accumulation of the denitration catalyst and the desulfurizer can be avoided, after the flue gas enters the hopper 120 through the gas inlet 122, because the rotation of the adsorption cylinder 121 generates a vortex, therefore, the flue gas is absorbed into the absorption cylinder 121, the flue gas can be fully contacted with the denitration catalyst and the desulfurizer, the sulfur dioxide in the flue gas is absorbed, the aim of desulfurization is finally achieved, the purification efficiency is improved, when the first contact part of the denitration catalyst and the desulfurizer at the bottommost layer in the hopper 120 reaches desulfurization saturation, the valve in the diversion port 124 is opened to discharge the denitration catalyst and the desulfurizer, and the fresh denitration catalyst and the desulfurizer are added from the feeding pipe 117 for supplement.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides an energy-concerving and environment-protective device of industrial boiler flue gas desulfurization denitration, includes boiler (1), sack dust removal case (2) and the purifying column (3) of connecting in order, through the pipe intercommunication between the input of boiler (1) output and sack dust removal case (2), the output intercommunication of sack dust removal case (2) has draught fan (12), the intercommunication has into tobacco pipe (13) on draught fan (12) output, advance tobacco pipe (13) and run through in purifying column (3) and extend entering purifying column (3), its characterized in that: sack dust removal case (2) including filter box (4), ash bucket (5), air inlet smoke box (6), give vent to anger smoke box (7), division board (8), be used for carrying out prefilter's electrostatic precipitator subassembly (9) and being used for carrying out secondary filter's sack dust removal subassembly (10) to the flue gas dust, air inlet smoke box (6) and give vent to anger smoke box (7) set up respectively and filter box (4) both ends, ash bucket (5) fixed connection is in filtering box (4) bottom, division board (8) fixed connection is at filtering box (4) middle part, division board (8) will filter box (4) and separate into first filter chamber (41) and second filter chamber (42), first filter chamber (41) and air inlet smoke box (6) intercommunication, second filter chamber (42) and air outlet smoke box (7) intercommunication, dust removal subassembly (9) and dust removal sack subassembly (10) set up respectively in first filter chamber (41) and second filter chamber (42), the inside flue gas denitration mechanism that is used for carrying out the desulfurization to filter the flue gas dust removal tower (3) back that is provided with.

2. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 1, characterized in that: electrostatic precipitator subassembly (9) include a plurality of dwang (91), a plurality of electrostatic board (92), mounting box (93), be used for driving all electrostatic boards (92) pivoted drive assembly (94) and a plurality of be used for shaking the subassembly (95) of strikeing that falls with the dust on electrostatic board (92), all dwang (91) from top to bottom evenly sets up inside first filter chamber (41), dwang (91) both ends are rotated with mounting box (93) and division board (8) respectively through the pivot and are connected, and all electrostatic boards (92) are all fixed to be established on dwang (91) fixed cover, electrostatic board (92) include anodal discharge plate (921) and negative pole discharge plate (922), anodal discharge plate (921) and negative pole discharge plate (922) are the setting of staggering, mounting box (93) are fixed to be set up in cigarette case (6) and filter dwang (4) middle part junction of admitting air, both ends run through respectively about mounting box (93) and filter box (4) and extend to filter box (4) outside, drive assembly (94) and all transmission assembly (91) are connected between all adjacent (95).

3. The industrial boiler flue gas desulfurization and denitrification energy-saving and environment-friendly device of claim 2, which is characterized in that: drive assembly (94) include a plurality of first gear (941) and two second gear (942), all the one end of dwang (91) is run through mounting box (93) and is extended to inside mounting box (93), and rotate through bearing and mounting box (93) and be connected, all first gear (941) overlap and establish on all dwang (91), two second gear (942) rotate respectively and set up both ends about mounting box (93) is inside, and the transmission is connected with first driving chain (943) between one of them second gear (942) and one of them first gear (941), and the transmission is connected with second driving chain (944) between another second gear (942) and other first gear (941), the upper and lower both ends of filtering box (4) all are provided with driving motor (96), two driving motor (96) output shaft respectively with two second gear (942) fixed connection.

4. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 2, characterized in that: the width of the electrostatic plate (92) close to the inner top wall of the filter box body (4) is smaller than that of the rest electrostatic plates (92).

5. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 2, characterized in that: strike subassembly (95) including dead lever (951) and a plurality of conflict part (952), dead lever (951) level sets up two between dwang (91), just dead lever (951) both ends respectively with mounting box (93) and division board (8) fixed connection, conflict part (952) evenly sets up on dead lever (951), conflict part (952) include that two are fixed cylinder (953) and two activities grafting in two fixed cylinder (953) inside telescopic link (954) of diagonal angle setting in dead lever (951) both sides, fixedly connected with spring between telescopic link (954) and fixed cylinder (953), the spring is located inside fixed cylinder (953), fixed cylinder (953) one end fixedly connected with circular contact block (955) is kept away from to telescopic link (954).

6. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 1, characterized in that: the bag dust removal assembly (10) comprises a plurality of filter bags (101), a movable plate (102) and two hydraulic cylinders (103) used for driving the movable plate (102) to move in the horizontal direction, all the filter bags (101) are arranged inside a second filter chamber (42) in an inclined manner, all the filter bags (101) are uniformly distributed, the movable plate (102) is arranged in the second filter chamber (42) in a sliding manner, two ends of each filter bag (101) are fixedly connected with a partition plate (8) and the movable plate (102) respectively, air guide holes (104) capable of being communicated with the filter bags (101) are formed in the partition plates (8) and the movable plate (102), the two hydraulic cylinders (103) are arranged on two sides of the bottom of each partition plate (8) respectively, two output shafts of the hydraulic cylinders (103) are fixedly connected with the movable plate (102), two guide rods (105) are symmetrically arranged at the tops of the partition plates (8), two ends of the guide rods (105) are fixedly connected with the partition plates (8) and the filter box body (4) respectively, and limiting holes capable of allowing the guide rods (105) to pass through are formed in two sides of the top plate (102).

7. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 2, characterized in that: purification mechanism (11) include first mounting panel (111), second mounting panel (112), third mounting panel (113), guide funnel (114), be used for mixing subassembly (115) with flue gas and denitration catalyst, desulfurizer flash mixed and be used for driving mixing subassembly (115) and carry out rotatory rotating electrical machines (116), first mounting panel (111), second mounting panel (112) and third mounting panel (113) from top to bottom level in proper order sets up inside purification tower (3), guide funnel (114) are installed on first mounting panel (111), mixing subassembly (115) are installed on second mounting panel (112), a plurality of smoke guide hole (128) have been seted up to second mounting panel (112) one side, mixing subassembly (115) are located guide funnel (114) under, rotating electrical machines (116) are installed under third mounting panel (113), rotating electrical machines (116) are connected with mixing subassembly (115) transmission.

8. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 7, characterized in that: purification tower (3) lateral wall is last to having set gradually inlet pipe (117), air duct (118) and row's material pipe (119) from top to bottom, inlet pipe (117) are located guide funnel (114) directly over, air duct (118) are located first mounting panel (111) directly under, draught fan (12) output is located second mounting panel (112) directly under, arrange material pipe (119) and be located one side of advancing tobacco pipe (13) directly over of third mounting panel (113), and with third mounting panel (113) link up.

9. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 7, characterized in that: mixing component (115) includes hopper (120) and adsorption cylinder (121), hopper (120) are rotated and are set up at second mounting panel (112) middle part, hopper (120) are located under the discharge gate of water conservancy diversion funnel, a plurality of air inlet (122) have evenly been seted up along the circumferencial direction at hopper (120) top, the inside fixedly connected with of purifying column (3) is used for carrying out spacing lantern ring (123) to hopper (120), water conservancy diversion mouth (124) have been seted up on the diapire in hopper (120), adsorption cylinder (121) fixed connection is on the diapire in hopper (120), and with water conservancy diversion mouth (124) intercommunication, a plurality of through-hole (125) have evenly been seted up along the circumferencial direction in adsorption cylinder (121) inner wall, hopper (120) bottom fixedly connected with rotating gear (126).

10. The industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device according to claim 9, characterized in that: the rotating motor (116) is installed on the inner bottom wall of the purifying tower (3), an output shaft of the rotating motor (116) penetrates through the third installation plate (113) and extends to the bottom of the second installation plate (112), a transmission gear (127) is sleeved on the output shaft of the rotating motor (116), and the transmission gear (127) is meshed with the rotating gear (126).

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