CN114733304A

CN114733304A - Tail gas purification device for coke production equipment

Info

Publication number: CN114733304A
Application number: CN202210287075.7A
Authority: CN
Inventors: 周泽龙
Original assignee: Xuzhou Jiantao Energy Co ltd
Current assignee: Xuzhou Jiantao Energy Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-12

Abstract

The invention belongs to the field of tail gas purification, and particularly relates to a tail gas purification device for coke production equipment, which comprises a purification tank, a tail gas inlet pipe, a tail gas outlet pipe and a dust removal filter plate, wherein the tail gas inlet pipe is connected with the tail gas outlet pipe; a tail gas inlet pipe is arranged on the side face of the bottom of the purification tank, the inner ring of the tail gas inlet pipe is communicated with the inside of the purification tank, the top surface of the purification tank is communicated with a tail gas outlet pipe, a dust removal filter plate is fixedly connected inside the purification tank, clean water is filled inside the purification tank, the liquid level of the clean water is over the dust removal filter plate, and the bottom of the purification tank is communicated with an ash discharge pipe; carry out the filter deposit through clear water and dust removal filter to the smoke and dust in the tail gas, carry out cooling treatment to tail gas simultaneously to the high temperature that has reduced tail gas causes the damaged probability of sack, has realized then that the smoke and dust separation in to the tail gas is clear away, has reduced the pollution of tail gas to the environment.

Description

Tail gas purification device for coke production equipment

Technical Field

The invention belongs to the field of tail gas purification, and particularly relates to a tail gas purification device for coke production equipment.

Background

The coke is a solid fuel prepared by dry distillation of coal under high temperature, has high heat productivity and is mainly used in the fields of metallurgy, casting, chemical industry and the like; the coke production process mainly comprises coal washing, coal blending, coking and product treatment.

According to CN111068440A a coking tail gas processing apparatus, this invention discloses a coking tail gas processing apparatus to solve the problems that the existing delayed coking apparatus has water vapor and foul gas pollution, and the tail gas VOC and coke powder cause secondary pollution along with the tail gas emission. This coking tail gas processing apparatus includes the tail gas treatment tower, the tail gas treatment tower from the top down is the desaturation section in proper order, the desulfurization section, gas-liquid separation section and settling section, desulfurization section below in the tail gas treatment tower is provided with the desulfurization section sump oil tank, desulfurization section sump oil tank below is provided with coke drum tail gas and other equipment production tail gas injection lines in the coker in the gas-liquid separation section, coke pool tail gas injection line, coke drum discharge steam injection line, the tail gas treatment tower bottom is equipped with the washing sewage and takes out the pipeline, the settling section lower part is equipped with the washing water and takes out the fill, the desulfurization section top is equipped with the absorption liquid injection line, desulfurization section sump oil tank below is equipped with desulfurization section sump oil tank extraction mouth, the tail gas treatment tower top is equipped with desaturation back coking tail gas pipeline.

Tail gas in the coke production process mainly is smoke and dust, SO2 and NOx and constitutes, and current tail gas dust collector is mainly the sack cleaner, but tail gas is often accompanied with high temperature, and too high temperature causes the damage of sack easily, and reduces the dust removal effect to tail gas, and the smoke and dust in the tail gas discharges into the atmosphere, then can cause the increase of dust content in the peripheral atmosphere, seriously influences the life and the healthy of peripheral resident.

Therefore, the invention provides a tail gas purification device for coke production equipment.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the conventional tail gas dust removal device is mainly a bag-type dust remover, but the tail gas is often accompanied by high temperature, the bag is easily damaged due to overhigh temperature, the dust removal effect on the tail gas is reduced, and the dust content in the surrounding atmosphere is increased due to the fact that smoke dust in the tail gas is discharged into the atmosphere, so that the life and the body health of surrounding residents are seriously affected, the invention provides the tail gas purification device for the coke production equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a tail gas purification device for coke production equipment, which comprises a purification tank, a tail gas inlet pipe, a tail gas outlet pipe and a dust removal filter plate, wherein the tail gas inlet pipe is connected with the tail gas outlet pipe; a tail gas inlet pipe is arranged on the side face of the bottom of the purification tank, the inner ring of the tail gas inlet pipe is communicated with the inside of the purification tank, the top surface of the purification tank is communicated with a tail gas outlet pipe, a dust removal filter plate is fixedly connected inside the purification tank, clean water is filled inside the purification tank, the liquid level of the clean water is over the dust removal filter plate, and the bottom of the purification tank is communicated with an ash discharge pipe; when the tail gas purifying device is used, tail gas generated in coke production enters the purifying tank through the tail gas inlet pipe, smoke dust in the tail gas is mixed and absorbed by clean water, the smoke dust is precipitated to the bottom of the purifying tank in the clean water and is discharged through the ash discharge pipe, the precipitated tail gas upwards passes through the dust removal filtering plate and is discharged through the tail gas outlet pipe, and the dust removal filtering plate filters the smoke dust mixed in the tail gas again; carry out the filter deposit through clear water and dust removal filter to the smoke and dust in the tail gas, carry out cooling treatment to tail gas simultaneously to the high temperature that has reduced tail gas causes the damaged probability of sack, has realized then that the smoke and dust separation in to the tail gas is clear away, has reduced the pollution of tail gas to the environment.

Preferably, the inner ring at the bottom of the purification tank is provided with a tail gas dispersing structure, and the tail gas dispersing structure comprises an annular pipe, a dispersing nozzle, a sealing cap, a support frame, a tension spring and a slide rod; an inner ring at the bottom of the purification tank is fixedly connected with an annular pipe, the interior of the annular pipe is communicated with the interior of the tail gas inlet pipe, the inner ring of the annular pipe is communicated with a plurality of dispersing nozzles, the inner walls of the dispersing nozzles are fixedly connected with a support frame, a slide rod is slidably installed in the middle of the support frame, one end, far away from the inner wall of the purification tank, of the slide rod is fixedly connected with a sealing cap, the outer ring of the support frame is hinged with one ends of a plurality of tension springs, and the other ends of the tension springs are hinged with the outer ring of the slide rod; when the tail gas purifying device is used, tail gas enters the annular pipe through the tail gas inlet pipe, the tail gas is discharged into the purifying tank through the dispersing nozzle, the sealing cap is pushed to leave the dispersing nozzle, the tension spring is driven to stretch, the tail gas is shunted through the arranged annular pipe and the dispersing nozzle, the mixing degree of the tail gas and clean water is improved, and therefore the filtering and precipitating degree of smoke dust in the tail gas is improved; after the tail gas is closed, the sliding rod is pulled into the dispersing nozzle through the elastic force of the tension spring, so that the sealing cap blocks the opening of the dispersing nozzle, and the probability that clean water in the purifying tank is filled into the tail gas inlet pipe is reduced.

Preferably, a notch is formed in the outer ring of one end, close to the sealing cap, of the sliding rod, a fan blade is rotatably mounted on the inner ring of the notch, and a plurality of through holes are formed in the fan blade; during the use, when tail gas was spouted by the dispersion mouth, promoted the flabellum and rotate along the notch, mixed tail gas and clear water, the through-hole of seting up simultaneously has reduced the resistance of clear water to the flabellum to further improved the smoke and dust filtration precipitation effect of clear water in to the tail gas.

Preferably, an outer ring at one end of the sliding rod, which is close to the support frame, is fixedly connected with a baffle ring, annular grooves are formed in the surfaces, which are close to the support frame, of the baffle ring, a sliding ring is rotatably installed in each annular groove, annular plates are fixedly connected to the surfaces, which are close to the sliding rings, on two sides of each annular plate, the annular plates on the two sides are in sliding fit, a plurality of ball grooves are formed in the middle of each sliding ring, balls are installed in the ball grooves in a rolling manner, and the outer walls of the balls are in sliding fit with the inner walls of the annular grooves; during the use, when tail gas was spouted by the dispersion mouth for keep off the ring and be close to the support frame, make the ring plate contact of both sides, the ball roll of both sides has reduced the frictional force when the slide bar rotates, thereby makes the flabellum rotate, and the drive slide bar is along with rotating, further improves tail gas then and follows the interior exhaust efficiency of dispersion mouth.

Preferably, the inner top side of the purification tank is provided with a cleaning structure; the cleaning structure comprises a circulating water outlet pipe, a circulating water inlet pipe, a supporting arm, a rotary drum, blades and an impact unit; one side of the middle part of the purification tank is communicated with a circulating water outlet pipe, the circulating water outlet pipe is positioned above the dust removal filter plate, the liquid level of the clear water is over the top of the circulating water outlet pipe, one side of the top of the purification tank is communicated with a circulating water inlet pipe, the top surface inside the purification tank is fixedly connected with a pair of supporting arms, the pair of supporting arms are respectively positioned at two sides of the circulating water inlet pipe, a rotary drum is rotatably arranged between the pair of supporting arms, the outer ring of the middle part of the rotary drum is fixedly connected with a blade, the outlet of the circulating water inlet pipe is aligned with the blade, two ends of the rotary drum are provided with impact units, and the outer ring of the impact units is in sliding fit with the top surface of the dust removal filter plate; when the dust removal filter plate is used, clear water above the dust removal filter plate is pumped out by the circulating water outlet pipe and then is discharged into the purification tank through the circulating water inlet pipe, and the clear water impacts the paddles on the surface of the rotary drum when entering the purification tank, so that the rotary drum rotates, the impact unit impacts the dust removal filter plate, the dust removal filter plate vibrates, and the soot deposited on the bottom surface of the dust removal filter plate is vibrated, so that the filtering effect of the dust removal filter plate is improved; through circulation outlet pipe and circulation inlet tube, the staff of being convenient for utilizes the clear water after being heated by tail gas to carry out the secondary and uses, has kept the temperature stability degree of clear water simultaneously.

Preferably, the striking unit comprises a sliding plate, an impact hammer and a limiting column; the outer rings at two ends of the rotary drum are provided with a plurality of accommodating grooves, the inner walls of the accommodating grooves are in sliding fit with the outer wall of the impact hammer, the middle part of the inner wall of each accommodating groove is provided with a sliding chute, a sliding plate is slidably mounted inside the sliding chute, the end of the sliding plate is fixedly connected with the middle part of the impact hammer, the middle part of the sliding plate is provided with a straight notch, an opening of the sliding chute is fixedly connected with a limiting column, the outer wall of the limiting column is in sliding fit with the inner wall of the straight notch, and the outer ring of the impact hammer is in sliding fit with the top surface of the dust removal filter plate; during the use, when the rotary drum rotated, the jump bit received the effect of gravity, drove the slide and slided along the spout for the jump bit slides from accomodating the inslot, and the jump bit striking dust removal filter for the dust removal filter takes place vibrations, thereby has realized cleaning work to dust removal filter.

Preferably, the impact hammer is arc crescent, the angle of the arc surface of the impact hammer is consistent with that of the arc surface of the rotary drum, and the arc surface of the impact hammer is fixedly connected with a plurality of rubber bumps; through the rubber bump that sets up, improved the unsmooth degree between jump bit and the dust removal filter to improved the frequency of vibration of dust removal filter, the rubber bump has reduced the impact force of jump bit to the dust removal filter simultaneously, has reduced the damage degree to the dust removal filter.

Preferably, a plurality of vibration cavities are formed in the two ends of the rotary drum, the vibration cavities and the sliding grooves are alternately distributed, one end of a spring is fixedly connected to the inner wall of each vibration cavity, an impact ball is fixedly connected to the other end of the spring, a plurality of bulges are arranged on the outer wall of the impact ball, and the outer ring of the impact ball is in impact fit with the inner ring of each vibration cavity; during the use, when the rotary drum rotated for the impact ball rocks at the vibrations intracavity under the effect of gravity and the elasticity effect of spring, and the impact ball strikes the inner wall in vibrations chamber, makes the rotary drum take place vibrations, thereby has improved the sense of vibration of jump bit, then further improved the clearance degree to the dust removal filter.

Preferably, a plurality of water collecting grooves are formed in the outer ring of the middle of the rotary drum, and the water collecting grooves are located between adjacent blades; through the water catch bowl that sets up, collect circulation inlet tube exhaust clear water, cooperation paddle has improved the dynamic strength when the rotary drum rotates.

The invention has the following beneficial effects:

1. the tail gas purification device for the coke production equipment is provided with the dust removal filter plate and the dispersing nozzle; tail gas is discharged into the purifying tank by dispersion mouth dispersion, tail gas and clear water mixing degree has been improved, smoke and dust in the tail gas is absorbed by clear water mixing, the bottom of purifying tank is precipitated to the smoke and dust in the clear water, tail gas after the sediment upwards passes the dust removal filter, the smoke and dust that the dust removal filter mix with in with the tail gas filters once more, the high temperature that has reduced tail gas causes the damaged probability of sack, realized cleaing away the smoke and dust separation in the tail gas, the pollution of tail gas to the environment has been reduced.

2. The tail gas purification device for the coke production equipment is provided with a circulating water outlet pipe, a circulating water inlet pipe, a rotary drum, blades and an impact hammer; circulation outlet pipe and circulation inlet tube cooperation realize that the clear water carries out cyclic utilization, strikes the leaf oar on rotary drum surface when the clear water gets into in the purifying tank for the rotary drum rotates, and the jump bit strikes the dust removal filter under the effect of gravity, makes the dust removal filter take place vibrations, has realized shaking off the filter cleaning work that removes dust, shakes the sedimentary smoke and dust in filter bottom surface that removes dust and falls, has improved the filter effect of dust removal filter.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a front sectional view of the first embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a schematic structural diagram of a striking unit according to the first embodiment;

FIG. 6 is a middle sectional view of the drum of the first embodiment;

fig. 7 is a partial structural view of a magnet piece according to a second embodiment.

In the figure: 1. a purification tank; 2. introducing tail gas into a pipe; 3. an exhaust gas outlet pipe; 4. a dust removal filter plate; 5. a ring pipe; 6. a dispersing nozzle; 7. a sealing cap; 8. a tension spring; 9. a slide bar; 10. a notch; 11. a fan blade; 12. a baffle ring; 13. a ring groove; 14. a slip ring; 15. a ring plate; 16. a ball bearing; 17. circulating a water outlet pipe; 18. circulating a water inlet pipe; 19. a support arm; 20. a rotating drum; 21. a blade paddle; 22. a slide plate; 23. an impact hammer; 24. a limiting column; 25. a receiving groove; 26. a chute; 27. a straight notch; 28. rubber bumps; 29. a vibration chamber; 30. a spring; 31. striking a ball; 32. a water collection tank; 33. a seal ring; 34. a magnet piece; 35. a support frame.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to 6, the tail gas purification device for coke production equipment according to the present invention comprises a purification tank 1, a tail gas inlet pipe 2, a tail gas outlet pipe 3 and a dust removal filter plate 4; a tail gas inlet pipe 2 is arranged on the side face of the bottom of the purification tank 1, the inner ring of the tail gas inlet pipe 2 is communicated with the inside of the purification tank 1, the top face of the purification tank 1 is communicated with a tail gas outlet pipe 3, a dust removal filter plate 4 is fixedly connected with the inside of the purification tank 1, clean water is filled in the purification tank 1, the liquid level of the clean water is over the dust removal filter plate 4, and the bottom of the purification tank 1 is communicated with an ash discharge pipe; when the device is used, tail gas generated in coke production enters the purification tank 1 through the tail gas inlet pipe 2, smoke dust in the tail gas is mixed and absorbed by clean water, the smoke dust is precipitated to the bottom of the purification tank 1 in the clean water and is discharged through the ash discharge pipe, the precipitated tail gas upwards passes through the dust removal filter plate 4 and is discharged through the tail gas outlet pipe 3, and the dust removal filter plate 4 filters the smoke dust mixed in the tail gas again; carry out the filter sediment through clear water and dust removal filter 4 to the smoke and dust in the tail gas, carry out cooling treatment to tail gas simultaneously to having reduced the high temperature of tail gas and having caused the damaged probability of sack, realized then that the smoke and dust separation in the tail gas is clear away, reduced the pollution of tail gas to the environment.

The inner ring at the bottom of the purification tank 1 is provided with a tail gas dispersing structure, and the tail gas dispersing structure comprises an annular pipe 5, a dispersing nozzle 6, a sealing cap 7, a support frame 35, a tension spring 8 and a slide rod 9; an inner ring at the bottom of the purification tank 1 is fixedly connected with a ring pipe 5, the interior of the ring pipe 5 is communicated with the interior of the tail gas inlet pipe 2, the inner ring of the ring pipe 5 is communicated with a plurality of dispersing nozzles 6, the inner wall of each dispersing nozzle 6 is fixedly connected with a support frame 35, a slide bar 9 is slidably installed in the middle of each support frame 35, one end, far away from the inner wall of the purification tank 1, of each slide bar 9 is fixedly connected with a sealing cap 7, the outer ring of each support frame 35 is hinged with one end of a plurality of tension springs 8, and the other end of each tension spring 8 is hinged with the outer ring of each slide bar 9; when the tail gas purifying device is used, tail gas enters the ring pipe 5 through the tail gas inlet pipe 2, the tail gas is discharged into the purifying tank 1 through the dispersing nozzle 6, the sealing cap 7 is pushed to leave the dispersing nozzle 6, the tension spring 8 is driven to stretch, and the tail gas is shunted through the ring pipe 5 and the dispersing nozzle 6, so that the mixing degree of the tail gas and clean water is improved, and the filtering and precipitating degree of smoke dust in the tail gas is improved; after the tail gas is closed, the sliding rod 9 is pulled into the dispersing nozzle 6 through the elasticity of the tension spring 8, so that the sealing cap 7 blocks the opening of the dispersing nozzle 6, and the probability that the clean water in the purifying tank 1 is filled into the tail gas inlet pipe 2 is reduced.

The outer ring of one end of the sliding rod 9 close to the sealing cap 7 is provided with a notch 10, the inner ring of the notch 10 is rotatably provided with a fan blade 11, and the blade of the fan blade 11 is provided with a plurality of through holes; during the use, when tail gas was spouted by dispersion mouth 6, promoted flabellum 11 and rotated along notch 10, mixed tail gas and clear water, the through-hole of seting up simultaneously has reduced the resistance of clear water to flabellum 11 to further improved the smoke and dust filtration precipitation effect of clear water in to the tail gas.

An outer ring at one end, close to a support frame 35, of the sliding rod 9 is fixedly connected with a retaining ring 12, one side, close to the support frame 35, of the retaining ring 12 is provided with an annular groove 13, a sliding ring 14 is rotatably installed inside the annular groove 13, one side, close to the sliding ring 14, of each of two sides is fixedly connected with a ring plate 15, one side, close to the ring plates 15, of each of two sides is provided with tooth grooves, the tooth grooves on two sides are meshed with each other, the middle of the sliding ring 14 is provided with a plurality of ball grooves, balls 16 are installed inside the ball grooves in a rolling manner, and the outer walls of the balls 16 are in sliding fit with the inner walls of the annular groove 13; during the use, when tail gas is by the blowout of dispersion mouth 6, make to keep off ring 12 and be close to support frame 35 for the ring plate 15 contact of both sides, through the intermeshing between the tooth's socket, make the ring plate 15 of both sides mesh into whole, the ball 16 of both sides rolls simultaneously, frictional force when further having reduced slide bar 9 and rotating, thereby make flabellum 11 rotate drive slide bar 9 and rotate along with, further improve tail gas then from the interior exhaust efficiency of dispersion mouth 6.

A cleaning structure is arranged on the top side in the purification tank 1; the cleaning structure comprises a circulating water outlet pipe 17, a circulating water inlet pipe 18, a supporting arm 19, a rotary drum 20, a blade 21 and an impact unit; one side of the middle part of the purification tank 1 is communicated with a circulating water outlet pipe 17, the circulating water outlet pipe 17 is positioned above the dust removal filter plate 4, the liquid level of the clear water is over the top of the circulating water outlet pipe 17, one side of the top part of the purification tank 1 is communicated with a circulating water inlet pipe 18, the top surface inside the purification tank 1 is fixedly connected with a pair of supporting arms 19, the pair of supporting arms 19 are respectively positioned at two sides of the circulating water inlet pipe 18, a rotary drum 20 is rotatably installed between the pair of supporting arms 19, the outer ring of the middle part of the rotary drum 20 is fixedly connected with a paddle 21, the outlet of the circulating water inlet pipe 18 is aligned with the paddles 21, two ends of the rotary drum 20 are provided with impact units, and the outer ring of the impact units is in sliding fit with the top surface of the dust removal filter plate 4; when the dust removal filter plate is used, clear water above the dust removal filter plate 4 is pumped out by the circulating water outlet pipe 17 and then is discharged into the purification tank 1 through the circulating water inlet pipe 18, when the clear water enters the purification tank 1, the clear water impacts the blades 21 on the surface of the rotary drum 20, so that the rotary drum 20 rotates, the impact unit impacts the dust removal filter plate 4, the dust removal filter plate 4 vibrates, the soot deposited on the bottom surface of the dust removal filter plate 4 is vibrated, and the filtering effect of the dust removal filter plate 4 is improved; through circulation outlet pipe 17 and circulation inlet tube 18, the staff of being convenient for utilizes the clear water after being heated by tail gas to carry out the secondary use, has kept the temperature stability degree of clear water simultaneously.

The striking unit comprises a sliding plate 22, an impact hammer 23 and a limiting column 24; the outer rings of two ends of the rotary drum 20 are provided with a plurality of accommodating grooves 25, the inner walls of the accommodating grooves 25 are in sliding fit with the outer walls of the impact hammers 23, the middle parts of the inner walls of the accommodating grooves 25 are provided with sliding grooves 26, sliding plates 22 are slidably mounted inside the sliding grooves 26, the ends of the sliding plates 22 are fixedly connected with the middle parts of the impact hammers 23, the middle parts of the sliding plates 22 are provided with straight notches 27, the openings of the sliding grooves 26 are fixedly connected with limiting columns 24, the outer walls of the limiting columns 24 are in sliding fit with the inner walls of the straight notches 27, and the outer rings of the impact hammers 23 are in sliding fit with the top surfaces of the dedusting filter plates 4; during the use, when rotary drum 20 rotated, jump bit 23 received the effect of gravity, drove slide 22 and slided along spout 26 for jump bit 23 slides from accomodating the groove 25, and jump bit 23 striking dust removal filter 4 makes dust removal filter 4 take place vibrations, thereby has realized cleaning work to dust removal filter 4.

The impact hammer 23 is arc crescent, the angle of the arc surface of the impact hammer 23 is consistent with that of the arc surface of the rotary drum 20, and the arc surface of the impact hammer 23 is fixedly connected with a plurality of rubber bumps 28; through the rubber bump 28 that sets up, improved the unsmooth degree between jump bit 23 and the dust removal filter 4 to improved the frequency of vibration of dust removal filter 4, rubber bump 28 has reduced the impact force of jump bit 23 to dust removal filter 4 simultaneously, has reduced the damage degree to dust removal filter 4.

A plurality of vibration cavities 29 are formed in the two ends of the rotary drum 20, the vibration cavities 29 and the sliding grooves 26 are alternately distributed, one end of a spring 30 is fixedly connected to the inner wall of each vibration cavity 29, an impact ball 31 is fixedly connected to the other end of the spring 30, a plurality of protrusions are arranged on the outer wall of the impact ball 31, and the outer ring of the impact ball 31 is in impact fit with the inner ring of each vibration cavity 29; during the use, when rotary drum 20 rotated for striking ball 31 rocks in vibrations chamber 29 under the effect of gravity and the elasticity effect of spring 30, and striking ball 31 strikes the inner wall that shakes chamber 29, makes rotary drum 20 take place vibrations, thereby has improved the sense of shock of jump bit 23, has then further improved the clearance degree to dust removal filter 4.

A plurality of water collecting grooves 32 are formed in the outer ring of the middle of the rotating drum 20, and the water collecting grooves 32 are positioned between adjacent blades 21; through the water collecting tank 32, clear water discharged by the circulating water inlet pipe 18 is collected and matched with the paddles 21, so that the power strength of the rotary drum 20 during rotation is improved.

Example two

As shown in fig. 7, a plurality of sealing rings 33 are fixedly connected to an outer ring of one surface of the sealing cap 7 close to the dispersing nozzle 6, a plurality of magnet pieces 34 are arranged on one surface of the sealing cap 7 close to the dispersing nozzle 6, and the magnet pieces 34 on two sides attract each other; during the use, after tail gas closed, sealed cap 7 is close to dispersion mouth 6, and the magnet piece 34 that both sides set up attracts mutually, and cooperation sealing ring 33 has further improved the sealed effect of sealed cap 7 to dispersion mouth 6.

The working principle is as follows: firstly, filling clear water into the purification tank 1 until the liquid level of the clear water is over the circulating water outlet pipe 17; tail gas generated in coke production enters an annular pipe 5 through a tail gas inlet pipe 2, the tail gas is discharged into a purification tank 1 through a dispersion nozzle 6, a sealing cap 7 is pushed to leave the dispersion nozzle 6 to drive a tension spring 8 to stretch, when the tail gas is sprayed out of the dispersion nozzle 6, fan blades 11 are pushed to rotate along a notch 10, the tail gas is fully mixed with clean water, smoke dust in the tail gas is precipitated in the clean water, the tail gas is upwards filtered by a dust removal filter plate 4, and the filtered tail gas is discharged through a tail gas outlet pipe 3; the probability of cloth bag damage caused by overhigh temperature of the tail gas is reduced, the separation and removal of smoke and dust in the tail gas are realized, and the pollution of the tail gas to the environment is reduced;

then, the circulating water outlet pipe 17 pumps out clean water above the dedusting filter plate 4, the clean water is discharged into the purification tank 1 through the circulating water inlet pipe 18, when the clean water enters the purification tank 1, the blade 21 on the surface of the rotary drum 20 is impacted, the rotary drum 20 rotates, the impact hammer 23 is under the action of gravity, the sliding plate 22 is driven to slide along the sliding groove 26, the impact hammer 23 slides from the accommodating groove 25, meanwhile, under the action of gravity and the elastic force of the spring 30, the impact ball 31 shakes in the vibration cavity 29, the impact ball 31 impacts the inner wall of the vibration cavity 29, the rotary drum 20 shakes, the vibration sense of the impact hammer 23 is improved, the impact hammer 23 impacts the dedusting filter plate 4, the dedusting filter plate 4 shakes, and the cleaning work of the dedusting filter plate 4 is achieved; meanwhile, through the circulating water outlet pipe 17 and the circulating water inlet pipe 18, workers can use the clean water heated by the tail gas for secondary use, and the temperature stability of the clean water is kept.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A tail gas purification device for coke production equipment comprises a purification tank (1), a tail gas inlet pipe (2), a tail gas outlet pipe (3) and a dust removal filter plate (4); the method is characterized in that: the bottom side of purifying tank (1) is provided with tail gas and advances pipe (2), the tail gas advances the inside of inner circle intercommunication purifying tank (1) of pipe (2), the top surface intercommunication tail gas exit tube (3) of purifying tank (1), the inside rigid coupling dust removal filter (4) of purifying tank (1), the inside filling of purifying tank (1) has the clear water, the liquid level of clear water has not passed dust removal filter (4), the bottom intercommunication dust exhaust pipe of purifying tank (1).

2. The tail gas purification device for coke production equipment according to claim 1, characterized in that: the tail gas dispersing structure is arranged on the inner ring at the bottom of the purification tank (1) and comprises an annular pipe (5), a dispersing nozzle (6), a sealing cap (7), a support frame (35), a tension spring (8) and a slide rod (9); the bottom inner circle rigid coupling ring canal (5) of purifying tank (1), the inside of the inside intercommunication tail gas inlet pipe (2) of ring canal (5), the inner circle of ring canal (5) communicates a plurality of dispersion mouths (6), the inner wall rigid coupling support frame (35) of dispersion mouth (6), middle part slidable mounting slide bar (9) of support frame (35), the sealed cap of one end rigid coupling (7) of purifying tank (1) inner wall is kept away from in slide bar (9), the outer lane of support frame (35) is articulated with the one end of a plurality of extension springs (8), the other end of extension spring (8) is articulated with the outer lane of slide bar (9).

3. The tail gas purification device for coke production equipment according to claim 2, characterized in that: the sealing device is characterized in that a notch (10) is formed in the outer ring of one end, close to the sealing cap (7), of the sliding rod (9), a fan blade (11) is rotatably mounted on the inner ring of the notch (10), and a plurality of through holes are formed in the fan blade (11).

4. The tail gas purification device for coke production equipment according to claim 2, characterized in that: slide bar (9) are close to one end outer lane rigid coupling fender ring (12) of support frame (35), keep off ring (12) and support frame (35) one side that is close to mutually all set up annular (13), the inside of annular (13) rotates installation sliding ring (14), both sides the equal rigid coupling crown plate (15) of one side that sliding ring (14) are close to mutually, both sides tooth's socket is all seted up to the one side that crown plate (15) are close to mutually, both sides intermeshing between the tooth's socket, a plurality of ball grooves are seted up at the middle part of sliding ring (14), the inside roll installation ball (16) of ball groove, the outer wall of ball (16) and the inner wall sliding fit of annular (13).

5. The tail gas purification device for coke production equipment according to claim 1, characterized in that: a cleaning structure is arranged on the top side in the purification tank (1); the cleaning structure comprises a circulating water outlet pipe (17), a circulating water inlet pipe (18), a supporting arm (19), a rotary drum (20), a blade paddle (21) and an impact unit; the utility model discloses a dust removal filter plate, including purification jar (1), circulation outlet pipe (17) is communicated to middle part one side of purification jar (1), circulation outlet pipe (17) is located the top of dust removal filter plate (4), the liquid level of clear water does not cross the top of circulation outlet pipe (17), top one side intercommunication circulation inlet tube (18) of purification jar (1), the inside top surface rigid coupling of purification jar (1) a pair of support arm (19), and is a pair of support arm (19) are located the both sides of circulation inlet tube (18) respectively, and is a pair of rotate between support arm (19) and install rotary drum (20), the middle part outer lane rigid coupling paddle (21) of rotary drum (20), the export of circulation inlet tube (18) aligns paddle (21), the both ends of rotary drum (20) are provided with the striking unit, the outer lane of striking unit and the top surface sliding fit of dust removal filter plate (4).

6. The tail gas purifying device for coke production equipment according to claim 5, characterized in that: the striking unit comprises a sliding plate (22), an impact hammer (23) and a limiting column (24); the utility model discloses a dust removal filter plate, including rotary drum (20), the inner wall of accomodating groove (25) and the outer wall sliding fit of jump bit (23), accomodate the inner wall middle part of groove (25) and offer spout (26), the inside slidable mounting slide (22) of spout (26), the end of slide (22) and the middle part rigid coupling of jump bit (23), straight notch (27) are seted up at the middle part of slide (22), opening part rigid coupling spacing post (24) of spout (26), the outer wall of spacing post (24) and the inner wall sliding fit of straight notch (27), the outer lane of jump bit (23) and the top surface sliding fit of dust removal filter plate (4).

7. The tail gas purification device for coke production equipment according to claim 6, characterized in that: the impact hammer (23) is arc crescent, the angle of the arc surface of the impact hammer (23) is consistent with that of the arc surface of the rotary drum (20), and the arc surface of the impact hammer (23) is fixedly connected with a plurality of rubber salient points (28).

8. The tail gas purifying device for coke production equipment according to claim 6, characterized in that: a plurality of vibrations chambeies (29) are seted up to the both ends inside of rotary drum (20), vibrations chamber (29) and spout (26) distribute in turn, the one end of the inner wall rigid coupling spring (30) in vibrations chamber (29), the other end rigid coupling striking ball (31) of spring (30), the outer wall of striking ball (31) sets up a plurality of archs, the outer lane of striking ball (31) and the inner circle striking cooperation in vibrations chamber (29).

9. The tail gas purification device for coke production equipment according to claim 5, characterized in that: the middle outer ring of the rotating cylinder (20) is provided with a plurality of water collecting grooves (32), and the water collecting grooves (32) are positioned between adjacent blades (21).

10. The tail gas purification device for coke production equipment according to claim 2, characterized in that: a plurality of sealing rings (33) of a side outer lane rigid coupling that sealed cap (7) are close to dispersion mouth (6), sealed cap (7) all are provided with a plurality of magnet pieces (34), both sides with the one side that dispersion mouth (6) are close to mutually between magnet piece (34) inhale mutually.