CN115779579B

CN115779579B - Petroleum coke calcination cooling flue gas treatment device with cleaning function

Info

Publication number: CN115779579B
Application number: CN202310076483.2A
Authority: CN
Inventors: 巴爱民; 巴爱国; 王希建; 袁景德
Original assignee: Shandong Huiyu New Material Co ltd
Current assignee: Shandong Huiyu New Material Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-05-02
Anticipated expiration: 2043-02-08
Also published as: CN115779579A

Abstract

The invention relates to the technical field of petroleum coke flue gas treatment, in particular to a petroleum coke calcination cooling flue gas treatment device with a cleaning function. The utility model provides a petroleum coke calcination cooling flue gas processing apparatus with clearance function, including the cooling casing, the cooling casing rigid coupling has annular casing, annular casing is provided with the air inlet, the cooling casing rotates and is connected with the bull stick, the rigid coupling has the grid filter plate that is located the air inlet upside in the cooling casing, the bull stick has set gradually water storage cavity from top to bottom, gaseous cavity and circulation cavity, the cooling casing rigid coupling has the rectangle casing of circumference distribution, the rectangle casing rigid coupling of circumference distribution has the lantern ring of being connected with the bull stick rotation, rectangle casing and annular casing intercommunication, the upside equidistant logical groove that is provided with symmetric distribution of rectangle casing. According to the invention, the sulfide is dissolved firstly, then lime slurry is introduced into the liquid dissolved with the sulfide, so that the process of atomizing the lime slurry is omitted, and the dissolution of the sulfide is accelerated by stirring the liquid dissolved with the sulfide.

Description

Petroleum coke calcination cooling flue gas treatment device with cleaning function

Technical Field

The invention relates to the technical field of petroleum coke flue gas treatment, in particular to a petroleum coke calcination cooling flue gas treatment device with a cleaning function.

Background

Petroleum coke is vacuum residue oil of petroleum, black solid coke generated by treatment of a coking device, in order to make the petroleum coke suitable for graphite electrodes or aluminum production, the petroleum coke needs to be calcined, but flue gas generated by calcining the petroleum coke contains a large amount of sulfides, if the sulfides are directly discharged into the atmosphere, serious environmental pollution is caused, so that the sulfides in the flue gas need to be subjected to sulfur removal treatment, generally atomized lime slurry is adopted to contact the flue gas, so that solid particles are generated, and finally, the solid particles are collected to complete sulfur removal of the flue gas.

However, this method has the following problems:

1. the sprayed atomized lime slurry cannot be ensured to be in full contact with the flue gas, so that part of the flue gas is discharged after incomplete sulfur removal.

2. The discharged gas is not cooled, so that the environment is polluted.

3. The operation personnel are required to collect the solid particles, and the operation is complicated.

Disclosure of Invention

In order to solve the problems of the technical background, the invention provides a petroleum coke calcination cooling flue gas treatment device with a cleaning function.

The technical scheme of the invention is as follows: the utility model provides a petroleum coke calcination cooling flue gas treatment device with clearance function, which comprises supporting legs, the landing leg rigid coupling has the cooling casing, the top of cooling casing is provided with the exhaust hole, the outside rigid coupling of cooling casing has the annular casing, the annular casing is provided with the air inlet, the cooling casing rotates and is connected with the bull stick, the rigid coupling has the grid filter plate that is located the air inlet upside, grid filter plate and bull stick rotate and are connected, water storage cavity has been set gradually from top to bottom in the bull stick, gas cavity and circulation cavity, the cooling casing is provided with the drain groove that communicates with circulation cavity, the bull stick rigid coupling has the drain pipe of circumference and symmetric distribution, circumference and symmetric distribution's drain pipe all communicate with the water storage cavity, circumference and symmetric distribution's drain pipe are located the upper and lower both sides of grid filter plate respectively, the drain pipe is provided with equidistant outlet that distributes, the bull stick rotates and is connected with the inlet tube that communicates with the water storage cavity, the inside rigid coupling of cooling casing has circumference distribution's rectangle casing rigid coupling with the lantern ring that rotates that is connected with the bull stick, rectangle casing and annular casing communicates, the upside of rectangle casing equidistant logical groove that has symmetric distribution, be provided with the distribution's of drive bull stick rotation's dispersion mechanism, will disperse through rectangle casing and get into the cooling casing evenly and carry upward through the logical groove of rectangle landing leg of the rotation;

one side of the rectangular shell, which is far away from the inner wall of the cooling shell, is lower than one side, which is close to the inner wall of the cooling shell, and one side, which is far away from the inner wall of the cooling shell, of the lower side of the rectangular shell is provided with water drainage grooves which are distributed at equal intervals and are used for draining water in the rectangular shell.

Preferably, the dispersing mechanism comprises a servo motor, the servo motor is fixedly connected to the supporting leg, a first gear is fixedly connected to an output shaft of the servo motor, a second gear meshed with the first gear is fixedly connected to a rotating rod, and a stirring component for accelerating dissolution of sulfides is arranged on the rotating rod.

Preferably, the stirring part is including circumference and symmetric distribution's hollow stirring leaf, circumference and symmetric distribution's hollow stirring leaf all rigid coupling is in the bull stick, hollow stirring leaf and circulation cavity intercommunication, hollow stirring leaf intercommunication has equidistant distribution's feed liquor casing, the bull stick is provided with circumference equidistant distribution's guiding gutter, the guiding gutter is located hollow stirring leaf's downside, the guiding gutter is located the bottom of cooling casing, the rigid coupling has the filter screen in the guiding gutter, the rigid coupling has circumference equidistant first fixed block of distribution in the circulation cavity, circulation cavity swivelling joint has circumference equidistant first interception piece of distribution, first interception piece is located the upside of first fixed block, first interception piece is located the downside of guiding gutter, be provided with the circulation subassembly that is used for circulating liquid in the bull stick.

Preferably, the liquid inlet shell close to the inner wall of the cooling shell is in contact with the inner wall of the cooling shell, and the liquid inlet shell close to the inner wall of the cooling shell is made of elastic materials and used for increasing extrusion force between the liquid inlet shell and the inner wall of the cooling shell.

Preferably, the circulation assembly comprises a third gear, the third gear is fixedly connected to an output shaft of the servo motor, the rotary rod is rotationally connected with a feeding pipe, the feeding pipe is provided with feeding holes which are distributed symmetrically in the circumferential direction, a fourth gear meshed with the third gear is fixedly connected to the feeding pipe, one end, close to the fourth gear, of the feeding pipe is rotationally connected with a connecting port, and the feeding pipe is fixedly connected with fans which are distributed symmetrically.

Preferably, a sleeve is fixedly connected in the circulation cavity, and the diameter of the sleeve is gradually reduced from top to bottom and is used for guiding the liquid in the circulation cavity.

Preferably, the device further comprises a periodical discharge mechanism, wherein the periodical discharge mechanism is arranged on the rotating rod, the periodical discharge mechanism is used for discharging solid particles in the circulating cavity, the periodical discharge mechanism comprises circumferentially equidistant U-shaped pipes, the circumferentially equidistant U-shaped pipes are fixedly connected to the rotating rod through supporting blocks, one sides of the U-shaped pipes, which are far away from the rotating rod, are slidably connected with first sliding rods, first pushing plates fixedly connected with the first sliding rods are slidably connected in the U-shaped pipes, one sides of the U-shaped pipes, which are far away from the rotating rod, are provided with through holes, floating rings are fixedly connected to the first sliding rods, one sides of the U-shaped pipes, which are close to the rotating rod, are slidably connected with second pushing plates fixedly connected with the second sliding rods, limiting components for limiting the movement of the second pushing plates are arranged on the first sliding rods, and guide components for discharging solid sulfides in the circulating cavity are arranged on the second sliding rods.

Preferably, the limiting assembly comprises a wedge block fixedly connected to the first sliding rod, the U-shaped pipe is slidably connected with a first limiting rod, the second pushing plate is provided with a limiting groove in limiting fit with the first limiting rod, the upper portion of the second pushing plate is arranged to be in a frustum shape, one side, far away from the second pushing plate, of the first limiting rod is fixedly connected with a rectangular frame, the rectangular frame is provided with an inclined surface matched with the wedge block, and a tension spring is fixedly connected between the rectangular frame and the U-shaped pipe.

Preferably, the guide component comprises a limiting ring, the limiting ring is fixedly connected to one end of the second sliding rod, which is far away from the second push plate, the limiting ring is fixedly connected with a guide shell which is in sliding connection with the rotating rod, the guide shell and the rotating rod are matched to form an annular cavity, the rotating rod is provided with an air inlet which is communicated with the annular cavity, the air inlet is provided with a filter screen, the circulating cavity is rotationally connected with a rotating ring, the rotating rod is provided with an arc-shaped groove, the rotating ring is fixedly connected with a second limiting rod which is in sliding connection with the arc-shaped groove, the guide shell is provided with a chute which is in limiting fit with the second limiting rod, the lower part of the chute is inclined, the upper part of the chute is vertical, the rotating ring is fixedly connected with second interception blocks which are distributed at equal intervals in the circumferential direction, the second fixing blocks which are distributed at equal intervals are fixedly connected in the circulating cavity are positioned on the upper side of the second interception blocks, and connecting rods are fixedly connected between the second interception blocks which are distributed in the circumferential direction respectively and adjacent first interception blocks.

The invention has the following advantages: according to the invention, sulfide is dissolved firstly, lime slurry is introduced into liquid dissolved with sulfide, the process of atomizing the lime slurry is omitted, impurities on the inner wall of a cooling shell are prevented from adhering to the inner wall of the cooling shell, the sulfide in the flue gas is accelerated to be dissolved by stirring the liquid dissolved with sulfide, the grid filter plate is utilized to collect sulfide in the flue gas, the flue gas is dispersed before the flue gas contacts the grid filter plate, the contact area of the flue gas and the grid filter plate is increased, the liquid in the cooling shell is discharged when the liquid level in the cooling shell reaches a certain value through detecting the liquid level in the cooling shell, the liquid in the cooling shell is prevented from continuously rising into the rectangular shell, the liquid is prevented from entering equipment for conveying the flue gas, the lime slurry and the sulfide are prevented from being discharged in the process of discharging the liquid in the cooling shell, solid particles are prevented from accumulating in a circulating cavity, the filter screen in a guide groove is prevented from being reversely flushed in the process of discharging the solid particles, the filter screen is prevented from being blocked, and the efficiency of the filter screen is improved through increasing the back flushing time of the filter screen.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a perspective view of a cooling housing according to the present invention.

Fig. 3 is a perspective view of a rectangular housing according to the present invention.

Fig. 4 is an enlarged perspective view of fig. 3 a according to the present invention.

Fig. 5 is a perspective sectional view of the rotary lever of the present invention.

FIG. 6 is a sectional view showing the three-dimensional structure of the hollow stirring blade of the present invention.

Fig. 7 is a schematic perspective view of a U-shaped tube according to the present invention.

Fig. 8 is a perspective view of a rectangular frame of the present invention.

Fig. 9 is a perspective view of the guide shell of the present invention.

Fig. 10 is a perspective view of a rotary ring according to the present invention.

Fig. 11 is a schematic perspective view of an arc-shaped groove of the present invention.

Reference numerals illustrate: 1-support leg, 2-cooling housing, 201-exhaust vent, 202-drain tank, 3-annular housing, 301-intake port, 4-rotating rod, 401-storage Shui Kongqiang, 402-gas cavity, 403-circulation cavity, 404-guide slot, 405-arc slot, 406-intake port, 5-grid filter plate, 6-drain pipe, 7-intake pipe, 8-rectangular housing, 801-drain slot, 901-servo motor, 902-first gear, 903-second gear, 1001-hollow stirring vane, 1002-intake housing, 1003-first fixed block, 1004-first interception block, 1101-third gear, 1102-feed pipe, 1103-fourth gear, 1104-connection port, 1105-fan, 1106-sleeve, 1201-U-shaped tube, 1202-first slide bar, 1203-first push plate, 1204-floating ring, 1205-second slide bar, 1206-second push plate, 1207-wedge block, 1208-first limit bar, 1209-frame, 1210-tension spring, 1211-limit ring, 1212-guide housing, 12121-rectangular slide slot, 1213-1215-second limit bar, 1217-1215-second interception bar.

Detailed Description

Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Example 1

The utility model provides a petroleum coke calcination cooling flue gas treatment device with clearance function, as shown in fig. 1-5, including landing leg 1, the upper portion rigid coupling of landing leg 1 has cooling shell 2, cooling shell 2's top is provided with exhaust hole 201, be used for discharging the flue gas after the cooling, cooling shell 2's lateral surface rigid coupling has annular casing 3, annular casing 3's left side is provided with air inlet 301, cooling shell 2's middle part rotates and is connected with bull stick 4, the welding has the grid filter plate 5 that is located air inlet 301 upside in cooling shell 2, the flue gas upwards moves and contacts with grid filter plate 5, sulfide in the flue gas is absorbed by grid filter plate 5, grid filter plate 5 and bull stick 4 rotate to be connected, water storage cavity 401 has been set gradually from top to bottom in the bull stick 4, gas cavity 402 and circulation cavity 403, cooling shell 2 is provided with the flowing back groove 202 with circulation cavity 403 intercommunication, the drain tank 202 is positioned at the lower end of the cooling shell 2 and is used for discharging liquid in the cooling shell 2, the rotating rod 4 is fixedly connected with six drain pipes 6 which are circumferentially and symmetrically distributed, the six drain pipes 6 which are circumferentially and symmetrically distributed are communicated with the water storage cavity 401, the upper three drain pipes 6 are positioned at the upper side of the grid filter plate 5, the lower three drain pipes 6 are positioned at the lower side of the grid filter plate 5, the drain pipes 6 are provided with water outlets which are uniformly distributed at intervals, the water outlets of the upper three drain pipes 6 face downwards, the water outlets of the lower three drain pipes 6 face upwards, the rotating rod 4 is rotationally connected with a water inlet pipe 7 which is communicated with the water storage cavity 401, water is added into the six drain pipes 6 through the water inlet pipe 7, then is discharged through the water outlets of the drain pipes 6, the upper side and the lower side of the grid filter plate 5 are washed, sulfide on the grid filter plate 5 is dissolved in the water, the inside rigid coupling of cooling casing 2 has three rectangle casing 8 that circumference distributes, rectangle casing 8 that circumference distributes welds the lantern ring that is connected with bull stick 4 rotation, rectangle casing 8 and annular casing 3 intercommunication, the equidistant logical groove that is provided with of upper side of rectangle casing 8, evenly disperse and upwards carry the flue gas that will get into cooling casing 2 through the logical groove of three rectangle casing 8, increase flue gas and the area of contact of grid filter plate 5, avoid getting into cooling casing 2 through single air inlet 301 gas unable dispersion, reduce the absorption efficiency rectangle casing 8 of grid filter plate 5 and keep away from one side that is close to cooling casing 2 inner wall less than one side that is close to cooling casing 2 inner wall, the one end that the lower surface is close to bull stick 4 in the rectangle casing 8 is provided with equidistant water drainage tank 801 that distributes for the water in the discharge rectangle casing 8, landing leg 1 is provided with the dispersion mechanism of drive bull stick 4 rotation.

As shown in fig. 3 and 5, the dispersing mechanism comprises a servo motor 901, the servo motor 901 is connected to the supporting leg 1 through a bolt, a first gear 902 is in spline connection with the output shaft end of the servo motor 901, a second gear 903 meshed with the first gear 902 is fixedly connected to the lower end of the rotating rod 4, the servo motor 901 drives the rotating rod 4 to rotate clockwise through the first gear 902 and the second gear 903, the rotating rod 4 drives the water draining pipe 6 to rotate so as to uniformly disperse water drained by the water draining pipe 6 onto the grid filter plate 5, the grid filter plate 5 is circularly washed, separation and dissolution of sulfides on the grid filter plate 5 are facilitated, and the rotating rod 4 is provided with a stirring component for accelerating dissolution of the sulfides.

As shown in fig. 6, the stirring component includes six hollow stirring blades 1001 that circumference and symmetry distribute, six hollow stirring blades 1001 that circumference and symmetry distribute all weld in bull stick 4, hollow stirring blade 1001 and circulation cavity 403 intercommunication, hollow stirring blade 1001 intercommunication has equidistant three feed liquor casing 1002 that distribute, feed liquor casing 1002 keeps away from hollow stirring blade 1001 one side's cross-sectional area is greater than the cross-sectional area that is close to hollow stirring blade 1001 one side, feed liquor casing 1002 and the contact of cooling casing 2 inner wall that is close to cooling casing 2 inner wall, feed liquor casing 1002 is with solid particle or impurity that cooling casing 2 inner wall adheres to, be convenient for follow-up discharge, the material of feed liquor casing 1002 that is close to cooling casing 2 inner wall is elastic material, make feed liquor casing 1002 and cooling casing 2 inner wall contact point by the extrusion deformation, the extrusion force between feed liquor casing 1002 and the cooling casing 2 inner wall has been increased, increase feed liquor casing 1002 is to cooling casing 2 inner wall attachment's scraping chute efficiency, bull stick 4 is provided with circumference equidistant distributed guiding gutter 404, guiding gutter 404 is located hollow stirring blade 1001's downside, guiding gutter 403 is located cooling casing 2's bottom, guiding gutter 403 is located cooling casing 2 inner wall's bottom, the guide chute 403 and the first circulation piece is located the first and is located the first equal circumference of circulation cavity block that is located the first circulation cavity 1004 that is connected with the solid particle that is located, the first circulation piece is located the first equal interval of rotation cavity 1004, the first circulation piece is located the equal interval, the solid particle is located the third circulation piece is located the first circulation cavity 404, the equal interval is located the third circulation piece is located the cavity is located the circulation cavity 404, the equal.

As shown in fig. 5 and 6, the circulation assembly includes a third gear 1101, the third gear 1101 is welded to an output shaft of the servo motor 901, the third gear 1101 is located at a lower side of the first gear 902, a feeding pipe 1102 is rotationally connected to one end of the feeding pipe 4, the feeding pipe 1102 is provided with feeding holes symmetrically distributed circumferentially, lime slurry entering the connecting port 1104 is discharged into the circulation cavity 403 through the feeding holes on the feeding pipe 1102 in a rotation process of the feeding pipe 4, the lime slurry reacts with sulfur dioxide in the circulation cavity 403 to generate solid particles, a fourth gear 1103 meshed with the third gear 1101 is welded at a lower end of the feeding pipe 1102, a transmission ratio between the third gear 1101 and the fourth gear 1103 is larger than a transmission ratio between the first gear 902 and the second gear 903, one end of the feeding pipe 1102, which is close to the fourth gear 1103, is rotationally connected with the connecting port 1104, the feeding pipe 1102 is welded with symmetrically distributed fans 1105, the feeding pipe 1102 drives the two fans to rotate, the fans 1105 rotationally accelerate the downward flow speed of liquid in the circulation cavity 403, a sleeve 1106 is fixedly connected in the circulation cavity 403, the diameter of the sleeve 1106 gradually decreases from top to bottom, the diameter of the sleeve 1106 gradually changes the flow direction of the liquid flowing into the circulation cavity 403, the hollow blade 403 is stirred by the sleeve 1001, the flow direction of the liquid is guided by the stirring blade 403, and the flow of the liquid is accelerated into the circulation cavity, and the flow of the circulation flow is processed.

When the flue gas treatment device is used for treating the flue gas generated by calcining petroleum coke, water exists in the cooling shell 2, water in the cooling shell 2 is led into the flue gas through the upper hollow stirring blade 1001, an operator firstly introduces the flue gas into the air inlet 301, the flue gas in the annular shell 3 enters the cooling shell through one end of the rectangular shell 8 far away from the rotating rod 4, one side of the rectangular shell 8 far away from the inner wall of the cooling shell 2 is lower than one side close to the inner wall of the cooling shell 2, the flue gas in the rectangular shell 8 far away from the rotating rod 4 is preferentially discharged upwards through the through grooves in the rectangular shell 8, therefore, most of the flue gas in the rectangular shell 8 can be discharged through the through grooves in the rectangular shell 8, the flue gas upwards moves to be in contact with the grid filter plate 5, sulfides in the flue gas are absorbed by the grid filter plate 5, the flue gas entering the cooling shell 2 through the through grooves in the three rectangular shells 8 is uniformly dispersed and upwards conveyed, the contact area of the flue gas and the grid filter plate 5 is increased, the problem that the flue gas entering the cooling shell 2 through the single air inlet 301 cannot be dispersed, the flue gas cannot be uniformly spread at the grid filter plate 5, the adsorption efficiency of the flue gas in the grid filter plate 5 is influenced, and most of the flue gas is discharged through the grid filter plate 5, and the flue gas is discharged through the cooling filter plate 2 after being filtered through the grid filter plate 5.

When the flue gas is introduced into the air inlet 301, the operator introduces water into the water inlet pipe 7, the water in the water inlet pipe 7 enters the six water outlet pipes 6 through the water storage cavity 401 and is then discharged through the water outlet of the water outlet pipe 6, the upper side and the lower side of the grid filter plate 5 are washed, the water contacts with sulfide on the grid filter plate 5, the sulfide on the grid filter plate 5 is dissolved in the water, the water with the sulfide falls to the bottom of the cooling shell 2 downwards, contacts with the flue gas conveyed upwards in the downward moving process of the water, and cools the flue gas, so that the discharged gas is low-temperature gas, and the upward conveyed flue gas is dispersed by the through grooves of the rectangular shell 8, so that the contact area of the flue gas and the water is increased, and the cooling effect on the flue gas is improved.

In the process that the water with sulfide falls to the bottom of the cooling shell 2, because the through groove of the rectangular shell 8 is formed in the upper surface of the rectangular shell 8, therefore, part of sulfide water can enter through the through groove of the rectangular shell 8, and because one side of the rectangular shell 8 far away from the inner wall of the cooling shell 2 is lower than one side close to the inner wall of the cooling shell 2, the water entering the rectangular shell 8 flows to one side of the rotating rod 4 and is discharged through the water discharge groove 801, the blockage of the rectangular shell 8 by the water with sulfide is avoided, and the air inlet efficiency of flue gas is influenced.

When the flue gas is introduced into the air inlet 301, an operator starts the servo motor 901, the servo motor 901 drives the rotary rod 4 to rotate clockwise through the first gear 902 and the second gear 903, the rotary rod 4 drives the water discharge pipe 6 to rotate, water discharged by the water discharge pipe 6 is uniformly dispersed on the grid filter plate 5, the grid filter plate 5 is circularly washed, separation and dissolution of sulfides on the grid filter plate 5 are facilitated, and the lower part of the circulating cavity 403 is blocked due to staggered distribution of the first fixed block 1003 and the first blocking block 1004 in an initial state, so that water with the sulfides dissolved at the bottom of the entering the cooling shell 2 is not discharged from the cooling shell 2, and the water in the cooling shell 2 is continuously increased.

In the clockwise rotation process of the rotating rod 4, the rotating rod 4 drives the six hollow stirring blades 1001 and the liquid inlet shell 1002 on the stirring blades to rotate, water and sulfides in the cooling shell 2 are stirred, dissolution of the sulfides is accelerated, in the rotation process of the rotating rod 4, solid particles or impurities attached to the inner wall of the cooling shell 2 are scraped off by the liquid inlet shell 1002 due to the fact that the liquid inlet shell 1002 close to the inner wall of the cooling shell 2 contacts with the inner wall of the cooling shell 2, impurities on the inner wall of the cooling shell 2 are cleaned, follow-up discharge is facilitated, and due to the fact that the liquid inlet shell 1002 close to the inner wall of the cooling shell 2 is made of elastic materials, the contact point between the liquid inlet shell 1002 and the inner wall of the cooling shell 2 is extruded and deformed, extrusion force between the liquid inlet shell 1002 and the inner wall of the cooling shell 2 is increased, and scraping efficiency of the liquid inlet shell 1002 on attachments on the inner wall of the cooling shell 2 is improved.

In the process of rotating the liquid inlet housing 1002, liquid in the cooling housing 2 can impact the liquid inlet housing 1002, the cross-sectional area of one side of the liquid inlet housing 1002 away from the hollow stirring blade 1001 is larger than the cross-sectional area of one side of the liquid inlet housing 1002 close to the hollow stirring blade 1001, so that partial sulfide and water are led into the hollow stirring blade 1001 through the liquid inlet housing 1002 and enter the circulation cavity 403 to be conveyed downwards, finally, the liquid is discharged from the diversion trench 404 to re-enter the bottom of the cooling housing 2, the liquid discharged from the diversion trench 404 is diffused outwards from the middle part along the bottom of the cooling housing 2, finally, the liquid contacts with the inner wall of the cooling housing 2 to form circulation, part of solid oxide and impurities can be carried into the circulation cavity 403 in the process of liquid circulation and are intercepted by a filter screen of the diversion trench 404, subsequent treatment is facilitated, in the process of rotating the rotating rod 4, an operator communicates lime slurry with the connection port 1104, lime slurry entering a connecting port 1104 is discharged into a circulation cavity 403 through a feeding hole on a feeding pipe 1102, the lime slurry reacts with sulfur dioxide in the circulation cavity 403 to generate solid particles, the solid particles can remain in the circulation cavity 403 due to the arrangement of a filter screen in a guide groove 404, in the rotating process of a rotating rod 4, a servo motor 901 drives the feeding pipe 1102 to rotate through a third gear 1101 and a fourth gear 1103, the feeding pipe 1102 drives two fans 1105 to rotate, the rotation of the fans 1105 accelerates the downward flowing speed of liquid in the circulation cavity 403, the transmission ratio between the third gear 1101 and the fourth gear 1103 is larger than the transmission ratio between the first gear 902 and the second gear 903, the rotation speed of the fans 1105 is larger than the rotation speed of the rotating rod 4, the liquid quantity contacted with the lime slurry in the same time is increased, the sulfide treatment efficiency is improved, the lime slurry reacts with the dissolved sulfides in the water in the circulation cavity 403, so that the amount of the dissolved sulfides in the water between the rotating rod 4 and the cooling shell 2 is reduced, undissolved oxides on the grid filter plate 5, which are washed down by the water, are dissolved, the content of the sulfides in the water between the rotating rod 4 and the cooling shell 2 is reduced, and the solubility of the sulfides in the water, which are subsequently dropped from above, is increased.

In order to avoid that the liquid entering the circulation cavity 403 from the lower hollow stirring vane 1001 blocks the speed of conveying the liquid downwards from the upper side of the circulation cavity 403, a sleeve 1106 is arranged at the position where the lower hollow stirring vane 1001 is communicated with the circulation cavity 403, the diameter of the sleeve 1106 gradually decreases from top to bottom, the liquid entering the circulation cavity 403 from the lower hollow stirring vane 1001 contacts with the outer side surface of the sleeve 1106 and is conveyed downwards along the outer side surface of the sleeve 1106, so that the flowing direction of the liquid entering the circulation cavity 403 from the lower hollow stirring vane 1001 is the same as the flowing direction of the liquid conveyed downwards from the upper side of the circulation cavity 403, the flow rate of the liquid entering the circulation cavity 403 is improved, and the sulfide treatment is accelerated.

Example 2

On the basis of embodiment 1, as shown in fig. 7-11, the device further comprises a periodical discharge mechanism, the periodical discharge mechanism is arranged on the rotating rod 4, the periodical discharge mechanism is used for discharging solid particles in the circulation cavity 403, the periodical discharge mechanism comprises three U-shaped pipes 1201 which are distributed at equal intervals in the circumferential direction, the U-shaped pipes 1201 which are distributed at equal intervals in the circumferential direction are welded on one side of the rotating rod 4,U pipe 1201 far away from the rotating rod 4 through supporting blocks, a first sliding rod 1202 is connected with one side of the U-shaped pipe 1201 in a sliding manner, the first sliding rod 1203 is welded with the upper end of the first sliding rod 1202, one side of the U-shaped pipe 1201 far away from the rotating rod 4 is provided with a through hole, the first sliding rod 1202 which is distributed in the circumferential direction is connected with a floating ring 1204 through a bolt, the liquid level in the cooling shell 2 continuously rises, the floating ring 1204 moves upwards by buoyancy, the first sliding rod 1201 drives the first sliding rod 1203 to move upwards, the pressure in the U-shaped pipe 1201 is gradually increased, one side of the U-shaped pipe 1201 close to the rotating rod 4 is connected with a second sliding rod 1205 in a sliding manner, one side of the U-shaped pipe 1201 close to the rotating rod 4 is provided with a through hole, one side of the sliding rod 1201 is connected with the first sliding rod 1203, the upper end of the first sliding rod 1202 is provided with a second sliding rod 1205, and a second sliding rod 1206 is fixedly connected with the second sliding rod 1206, and a second slide rod 1206 is used for limiting the movement of the solid particles.

As shown in fig. 8, the limiting assembly comprises a wedge block 1207, the wedge block 1207 is welded to the first slide bar 1202, a first limiting rod 1208 is slidingly connected to one side of the U-shaped pipe 1201 close to the rotating rod 4, a limiting groove in limiting fit with the first limiting rod 1208 is formed in the second push plate 1206, the upper portion of the second push plate 1206 is arranged to be cone-shaped, the second push plate 1206 is assisted to reset, a rectangular frame 1209 is welded to one side of the first limiting rod 1208 away from the second push plate 1206, the rectangular frame 1209 is provided with an inclined surface matched with the wedge block 1207, when the wedge block 1207 is in contact with the rectangular frame 1209, the wedge block 1207 presses the inclined surface of the rectangular frame 1209, a tension spring 1210 is fixedly connected between the rectangular frame 1209 and the U-shaped pipe 1201, the rectangular frame 1209 drives the first limiting rod 1208 to be away from the second push plate 1206, and the tension spring 1210 is stretched.

As shown in fig. 9-11, the flow guiding component includes a limiting ring 1211, the limiting ring 1211 is fixedly connected to the lower end of the second slide rod 1205, the limiting ring 1211 is fixedly connected with a flow guiding shell 1212 slidingly connected with the rotating rod 4, the flow guiding shell 1212 and the rotating rod 4 cooperate to form an annular cavity, the rotating rod 4 is provided with an air inlet 406 communicated with the annular cavity, the air inlet 406 is provided with a filter screen, the circulating cavity 403 is rotationally connected with a rotating ring 1213, the rotating rod 4 is provided with an arc-shaped groove 405, the rotating ring 1213 is welded with a second limiting rod 1214 slidingly connected with the arc-shaped groove 405, the flow guiding shell 1212 is provided with a sliding groove 12121 slidingly matched with the second limiting rod 1214, the lower part of the sliding groove 12121 is inclined, the upper part is vertical, the flow guiding shell 1212 moves downwards, the sliding groove 12121 extrudes the second limiting rod 1214, under the limit of the arc-shaped groove 405, three second intercepting blocks 1215 distributed at equal intervals circumferentially are welded in the rotating ring 1213, three second fixing blocks 1004 distributed circumferentially are welded in the circulating cavity 403, the second intercepting blocks 1216 are welded between the second intercepting blocks 1217 distributed circumferentially on the upper sides of the second intercepting blocks 1216, and the first intercepting blocks 1217 are respectively welded between the second intercepting blocks 1217.

In the initial state, the first limiting rod 1208 is clamped into the limiting groove of the second push plate 1206, the second push plate 1206 is limited by the first limiting rod 1208 and cannot move, along with the increase of liquid in the cooling shell 2, when the liquid level of the liquid in the cooling shell 2 contacts with the floating ring 1204, the liquid level continues to be accumulated, the liquid level continuously rises, the floating ring 1204 moves upwards under the buoyancy force, the floating ring 1204 drives the first push plate 1203 and the wedge 1207 to move upwards through the first sliding rod 1202, external air enters the lower side of the first push plate 1203 in the U-shaped pipe 1201 through the through hole, because the first limiting rod 1208 is clamped into the limiting groove of the second push plate 1206 in the initial state, the second push plate 1206 is limited by the first limiting rod 1208 and cannot move, along with the upward movement of the first push plate 1203, the pressure between the first push plate 1203 and the second push plate 1206 in the U-shaped pipe 1201 is gradually increased, when the wedge 1207 contacts with the rectangular frame 1209, the wedge 1207 presses the inclined surface of the rectangular frame 1209, the rectangular frame 1209 drives the first limit rod 1208 to be far away from the second push plate 1206, the tension spring 1210 is stretched, the first limit rod 1208 gradually moves from the limit groove of the second push plate 1206, when the first limit rod 1208 moves out of the limit groove of the second push plate 1206, the limit of the second push plate 1206 is released, the pressure between the first push plate 1203 in the U-shaped pipe 1201 and the second push plate 1206 pushes the second push plate 1206 to move downwards, the gas at the lower side of the second push plate 1206 in the U-shaped pipe 1201 is discharged through the through hole, the second push plate 1206 drives the diversion shell 1212 to move downwards rapidly through the second slide rod 1205 and the limit ring 1211, in the process of moving downwards the second push plate 1206, the left end of the first limit rod 1208 contacts with the outer side surface of the second push plate 1206, the first limit rod 1208 cannot slide out from the U-shaped pipe 1201, when the second push plate 1208 moves to the lower side of the limit rod 1208, the tension spring 1210 drives the first stop rod 1208 to reset through the rectangular frame 1209, the chute 12121 presses the second stop rod 1214 in the downward moving process of the diversion shell 1212, the second stop rod 1214 rotates anticlockwise along the chute 12121 under the limit of the arc-shaped groove 405, the second stop rod 1214 drives the three second stop blocks 1215 to rotate anticlockwise through the rotating ring 1213, the three second stop blocks 1215 drive the three first stop blocks 1004 to rotate through the connecting rod 1217, when the second stop rod 1214 contacts with the bending part of the chute 12121, the three second stop blocks 1215 form a seal with the three second fixed blocks 1216, the seal between the three first stop blocks 1004 and the first fixed blocks 1003 is released, the diversion shell 1212 seals the diversion groove 404, when the second stop rod 1214 moves along the vertical part of the chute 12121 relative to the diversion shell 1212, the second stop rod 1214 does not rotate any more, the rotating ring 1213 does not rotate, when the second limit rod 1214 is positioned at the upper end of the slide groove 12121, the guide shell 1212 does not move downwards, and as the second interception block 1215 and the three second fixed blocks 1216 form a seal, the liquid conveyed downwards from the upper part of the circulation cavity 403 enters the annular cavity between the guide shell 1212 and the rotary rod 4 through the air inlet 406, when the liquid conveyed downwards from the upper part of the circulation cavity 403 passes through the air inlet 406, the solid particles in the liquid are intercepted in the circulation cavity 403 by the filter screen of the air inlet 406, the solid particles or impurities are not stored in the annular cavity between the guide shell 1212 and the rotary rod 4, the liquid enters the circulation cavity 403 through the outside of the rotary rod 4 by the guide groove 404, the filter screen on the guide groove 404 is backwashed, the solid particles on the filter screen in the guide groove 404 are cleaned, the filter screen is prevented from being blocked by the solid particles intercepted by the filter screen in the guide groove 404, resulting in a reduced flow of liquid through the filter screen and reduced efficiency in sulphide treatment.

The liquid entering the circulation cavity 403 through the diversion trench 404 conveys the solid particles in the circulation cavity 403 downwards, finally is discharged from the liquid discharge tank 202 of the cooling shell 2, the operator collects the solid particles, along with the discharge of the liquid in the circulation cavity 403, the liquid level of the liquid in the cooling shell 2 starts to descend, the floating ring 1204 drives the first pushing plate 1203 to move downwards through the first sliding rod 1202, the pressure between the first pushing plate 1203 and the second pushing plate 1206 in the U-shaped pipe 1201 is reduced, along with the descent of the liquid level, the second pushing plate 1206 starts to move upwards, the diversion shell 1212 starts to move upwards, the second limiting rod 1214 rotates after sliding along a certain distance along the sliding groove 12121 vertically, the liquid at the upper part of the circulation cavity 403 always enters the annular cavity through the air inlet hole 406 in the process that the second limiting rod 1214 slides along the vertical part of the sliding groove 12121, the back flushing time of the filter screen is increased, when the second limiting rod 1214 moves along the inclined portion of the sliding groove 12121, the sealing between the second blocking block 1215 and the second fixed block 1216 is released, the lower portion of the circulation cavity 403 is blocked again by the first fixed block 1003 and the first blocking block 1004, in the process that the second push plate 1206 moves upwards, the upper portion of the second push plate 1206 is arranged to be in a frustum shape, the circumferential inclined surface of the upper portion of the second push plate 1206 presses the first limiting rod 1208, the tension spring 1210 is stretched, and when the first limiting rod 1208 is aligned with the limiting groove of the second push plate 1206, the tension spring 1210 drives the first limiting rod 1208 to be inserted into the limiting groove of the second push plate 1206 through the rectangular frame 1209, and the first limiting rod 1208 limits the second push plate 1206 again.

In summary, as shown, through the detection of the liquid level in the cooling shell 2, when the liquid level in the cooling shell 2 reaches a certain value, the liquid in the cooling shell 2 is discharged, the situation that the liquid level in the cooling shell 2 continuously rises into the rectangular shell 8, so that the liquid enters the equipment for conveying the flue gas, the normal use of the equipment for conveying the flue gas is affected, the lime slurry and the products of sulfides are discharged in the liquid discharging process in the cooling shell 2, the accumulation of solid particles in the circulating cavity 403 is avoided, the filter screen in the diversion trench 404 is reversely flushed in the solid particle discharging process, the filter screen is prevented from being blocked, the dredging efficiency of the filter screen is improved by increasing the back flushing time of the filter screen, the above actions are repeated periodically, and the treatment efficiency of the sulfides is improved.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. Petroleum coke calcination cooling flue gas treatment device with clearance function, including landing leg (1), its characterized in that: the landing leg (1) is fixedly connected with a cooling shell (2), the top of the cooling shell (2) is provided with an exhaust hole (201), the outside of the cooling shell (2) is fixedly connected with an annular shell (3), the annular shell (3) is provided with an air inlet (301), the cooling shell (2) is rotationally connected with a rotating rod (4), the cooling shell (2) is fixedly connected with a grid filter plate (5) positioned at the upper side of the air inlet (301), the grid filter plate (5) is rotationally connected with the rotating rod (4), a water storage cavity (401), a gas cavity (402) and a circulating cavity (403) are sequentially arranged in the rotating rod (4) from top to bottom, the cooling shell (2) is provided with a liquid draining groove (202) communicated with the circulating cavity (403), the rotating rod (4) is fixedly connected with drain pipes (6) which are circumferentially and symmetrically distributed, the drain pipes (6) which are circumferentially and symmetrically distributed are respectively positioned at the upper side and lower side of the grid filter plate (5), the drain pipes (6) are provided with equidistant distribution, the rotating rod (4) is rotationally connected with a water inlet pipe (7) communicated with the water storage cavity (401), the inside of the cooling shell (2) is circumferentially and fixedly connected with a rectangular shell (8), the rectangular shell (8) distributed circumferentially is fixedly connected with a lantern ring rotationally connected with the rotating rod (4), the rectangular shell (8) is communicated with the annular shell (3), symmetrically distributed through grooves are formed in the upper side surface of the rectangular shell (8) at equal intervals, the supporting legs (1) are provided with dispersing mechanisms for driving the rotating rod (4) to rotate, and smoke entering the cooling shell (2) is uniformly dispersed and conveyed upwards through the through grooves of the rectangular shell (8); one side of the rectangular shell (8) far away from the inner wall of the cooling shell (2) is lower than one side close to the inner wall of the cooling shell (2), and one side of the lower side of the rectangular shell (8) far away from the inner wall of the cooling shell (2) is provided with water drainage grooves (801) which are distributed at equal intervals and used for draining water in the rectangular shell (8);

the dispersing mechanism comprises a servo motor (901), wherein the servo motor (901) is fixedly connected to the supporting leg (1), a first gear (902) is fixedly connected to an output shaft of the servo motor (901), a second gear (903) meshed with the first gear (902) is fixedly connected to the rotating rod (4), and a stirring component for accelerating dissolution of sulfides is arranged on the rotating rod (4);

the stirring component comprises hollow stirring blades (1001) which are circumferentially and symmetrically distributed, the hollow stirring blades (1001) which are circumferentially and symmetrically distributed are fixedly connected to a rotating rod (4), the hollow stirring blades (1001) are communicated with a circulating cavity (403), the hollow stirring blades (1001) are communicated with a liquid inlet shell (1002) which is uniformly distributed at intervals, the rotating rod (4) is provided with guide grooves (404) which are circumferentially and uniformly distributed, the guide grooves (404) are positioned on the lower side of the hollow stirring blades (1001), the guide grooves (404) are positioned at the bottom of a cooling shell (2), a filter screen is fixedly connected in the guide grooves (404), first fixed blocks (1003) which are circumferentially and uniformly distributed are fixedly connected in the circulating cavity (403), the first interception blocks (1004) are rotationally connected to the upper sides of the first fixed blocks (1003), the first interception blocks (1004) are positioned on the lower side of the guide grooves (404), and circulating components for circulating liquid are arranged in the rotating rod (4);

the liquid inlet shell (1002) close to the inner wall of the cooling shell (2) is in contact with the inner wall of the cooling shell (2), and the liquid inlet shell (1002) close to the inner wall of the cooling shell (2) is made of elastic materials and is used for increasing extrusion force between the liquid inlet shell (1002) and the inner wall of the cooling shell (2);

the circulating assembly comprises a third gear (1101), the third gear (1101) is fixedly connected to an output shaft of a servo motor (901), a feeding pipe (1102) is rotationally connected to a rotating rod (4), feeding holes which are symmetrically distributed in the circumferential direction are formed in the feeding pipe (1102), a fourth gear (1103) which is meshed with the third gear (1101) is fixedly connected to the feeding pipe (1102), a connecting port (1104) is rotationally connected to one end, close to the fourth gear (1103), of the feeding pipe (1102), a symmetrically distributed fan (1105) is fixedly connected to the feeding pipe (1102), in the rotating process of the rotating rod (4), lime slurry is communicated with the connecting port (1104), the lime slurry entering the connecting port (1104) is discharged into a circulating cavity (403) through the feeding holes in the feeding pipe (1102), and solid particles are generated by the lime slurry and sulfur dioxide in the circulating cavity (403).

2. The petroleum coke calcination cooling flue gas treatment device with cleaning function as claimed in claim 1, wherein: a sleeve (1106) is fixedly connected in the circulation cavity (403), and the diameter of the sleeve (1106) is gradually reduced from top to bottom and is used for guiding the liquid in the circulation cavity (403).

3. The petroleum coke calcination cooling flue gas treatment device with cleaning function as claimed in claim 1, wherein: the device comprises a circulating cavity (403), and is characterized by further comprising a periodical discharge mechanism, wherein the periodical discharge mechanism is arranged on the rotating rod (4), the periodical discharge mechanism is used for discharging solid particles in the circulating cavity (403), the periodical discharge mechanism comprises circumferentially equidistant U-shaped pipes (1201), the circumferentially equidistant U-shaped pipes (1201) are fixedly connected to the rotating rod (4) through supporting blocks, one sides of the U-shaped pipes (1201) away from the rotating rod (4) are slidably connected with first sliding rods (1202), first pushing plates (1203) fixedly connected with the first sliding rods (1202) are slidably connected in the U-shaped pipes (1201), through holes are formed in one sides of the U-shaped pipes (1201) away from the rotating rod (4), floating rings (1204) are fixedly connected to the first sliding rods (1202) which are circumferentially distributed, one sides of the U-shaped pipes (1201) close to the rotating rod (4) are slidably connected with second sliding plates (1206) fixedly connected with the second sliding rods (1205), and the first sliding rods (1202) are provided with second sliding plates (1206) which limit the second sliding plates (1206) to move, and the circulating cavity (1205) is used for discharging solid particles.

4. A petroleum coke calcination cooling flue gas treatment device with cleaning function as claimed in claim 3, wherein: the limiting assembly comprises a wedge block (1207), the wedge block (1207) is fixedly connected to a first sliding rod (1202), a U-shaped pipe (1201) is connected with a first limiting rod (1208) in a sliding mode, a limiting groove in limiting fit with the first limiting rod (1208) is formed in the second pushing plate (1206), the upper portion of the second pushing plate (1206) is arranged to be in a frustum shape, a rectangular frame (1209) is fixedly connected to one side, away from the second pushing plate (1206), of the first limiting rod (1208), the rectangular frame (1209) is provided with an inclined surface matched with the wedge block (1207), and a tension spring (1210) is fixedly connected between the rectangular frame (1209) and the U-shaped pipe (1201).

5. The petroleum coke calcination cooling flue gas treatment device with the cleaning function according to claim 4, wherein: the guide component comprises a limit ring (1211), the limit ring (1211) is fixedly connected to one end, far away from the second push plate (1206), of the second slide rod (1205), the limit ring (1211) is fixedly connected with a guide shell (1212) which is in sliding connection with the rotary rod (4), the guide shell (1212) and the rotary rod (4) are matched to form an annular cavity, the rotary rod (4) is provided with an air inlet hole (406) communicated with the annular cavity, the air inlet hole (406) is provided with a filter screen, the circulating cavity (403) is rotationally connected with a rotating ring (1213), the rotary rod (4) is provided with an arc groove (405), the rotating ring (1213) is fixedly connected with a second limit rod (1214) which is in sliding connection with the arc groove (405), the guide shell (1212) is provided with a chute (12121) which is in limiting fit with the second limit rod (1214), the lower part of the chute (12121) is inclined, the upper part of the guide shell is vertical, the rotating ring (1213) is fixedly connected with second interception blocks (1215) which are distributed at equal intervals in the circumferential direction, second fixed blocks (1215) which are distributed in the circumferential direction in the circulating cavity (403), the rotating ring (403) are fixedly connected with second fixed blocks (1216) which are distributed at equal intervals, the circumferential direction, the second fixed blocks (1216) are located on the side of the second interception blocks (1217) which are distributed in the circumferential direction, and are fixedly connected with the second interception blocks (1217).