CN112403192B - Sintering flue gas treatment device capable of simultaneously performing desulfurization and denitrification - Google Patents
Sintering flue gas treatment device capable of simultaneously performing desulfurization and denitrification Download PDFInfo
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- CN112403192B CN112403192B CN202011178585.8A CN202011178585A CN112403192B CN 112403192 B CN112403192 B CN 112403192B CN 202011178585 A CN202011178585 A CN 202011178585A CN 112403192 B CN112403192 B CN 112403192B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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Abstract
The invention discloses a sintering flue gas treatment device capable of simultaneously desulfurizing and denitrating, which comprises an active coke adsorption tower and an active coke regeneration tower, wherein a feed inlet of the adsorption tower is communicated with a discharge outlet of the regeneration tower through a feeding device; the discharge hole of the adsorption tower is communicated with the feed hole of the regeneration tower through a feeding device, and the adsorption tower is provided with a smoke inlet and a smoke outlet; the tower body is provided with three working positions from top to bottom, namely a buffer position, a reaction position and a material discharging position, and a smoke inlet is positioned between the material discharging position and the reaction position; the active coke adsorption tower comprises a tower body, three bearing bins for bearing active coke are arranged in the tower body, the bearing bins are square groove type, and the bottom of the bearing bins is provided with a ventilating net; the bearing bin circularly shifts at the cache position, the reaction position and the material discharging position under the action of the driving device.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a sintering flue gas treatment device for simultaneous desulfurization and denitrification.
Background
The sintering is the largest generation source of SO2 and NOx in the steel smelting process, and about 51-62% of SO2 and 48% of NOx come from the sintering process, SO the desulfurization and denitrification process is the most important process in the sintering flue gas treatment. In order to save the process time and the occupied area, the desulfurization and denitrification technology is mature and applied to the sintering flue gas treatment technology. Present SOx/NOx control simultaneously divide into dry desulfurization denitration and wet flue gas SOx/NOx control, and its principle is handled the flue gas through the chemical formulation that can SOx/NOx control simultaneously, and this chemical formulation can regenerate, is sent repeatedly to SOx/NOx control tower after regenerating.
The active coke desulfurization and denitrification belongs to dry desulfurization and denitrification, the realization of the active coke desulfurization and denitrification process mainly depends on an adsorption tower and a regeneration tower, a feeding port of the adsorption tower is connected with a discharging port of the regeneration tower through a feeding device, the discharging port of the adsorption tower is connected with a feeding port of the regeneration tower through the feeding device, and the feeding device is generally a screw feeder. In the adsorption tower, active coke is generally arranged in three areas, namely a buffer bin at the top, an adsorption bin in the middle and a discharge bin at the bottom. The smoke inlet of the adsorption tower is positioned between the adsorption bin and the discharge bin, and the smoke outlet is positioned between the adsorption bin and the buffer bin. Wherein, the bottom of surge bin, absorption storehouse, discharge bin all is the funnel that the net was made, and the net makes gaseous accessible, and active burnt can not pass through. The active coke passes through the funnel to the next level. The disadvantages of such a structure are: active burnt dwell time generally is 5 ~ 7 days in the adsorption tower, the adsorption tower is long-pending great, the active coke volume of filling in the tower is big, when the adsorption tower is loaded at every turn, reinforced entering top of the tower from the top, the ejection of compact mode is also the active burnt ejection of compact that falls to the discharge bin, because the adsorption tower is up to 20 ~ 30 meters, the active burnt drop is about 10m, active burnt diameter is about 9mm, mostly cylindric, intensity is not high, such filler mode and ejection of compact mode can lead to the active burnt breakage of certain quantity, can lead to active burnt intensity to reduce, influence active burnt recycling. More coke powder is generated when the active coke is crushed, and the particle content in the smoke can be increased.
Disclosure of Invention
The invention aims to provide a sintering flue gas treatment device capable of simultaneously desulfurizing and denitrating, which changes the feeding and discharging modes of active coke based on the structures of an adsorption tower and a regeneration tower in the prior art, thereby avoiding the crushing phenomenon of the active coke caused by the fall problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the sintering flue gas treatment device for simultaneous desulfurization and denitrification comprises an active coke adsorption tower and an active coke regeneration tower, wherein a feed inlet of the adsorption tower is communicated with a discharge outlet of the regeneration tower through a feeding device; the discharge hole of the adsorption tower is communicated with the feed hole of the regeneration tower through a feeding device, and the adsorption tower is provided with a smoke inlet and a smoke outlet; the tower body is provided with three working positions from top to bottom, namely a buffer position, a reaction position and a material discharging position, and a smoke inlet is positioned between the material discharging position and the reaction position; the active coke adsorption tower comprises a tower body, three bearing bins for bearing active coke are arranged in the tower body, the bearing bins are square groove type, and the bottom of the bearing bins is a ventilating net; the bearing bin circularly shifts at the cache position, the reaction position and the material discharging position under the action of the driving device.
As a preferred technical scheme, the driving device for driving the bearing bin to displace comprises a first screw and a second screw; the two first screw rods are respectively rotatably arranged at two corresponding sides in the tower body and rotate under the action of the motor; the two second screws are respectively rotatably arranged on the other corresponding two sides in the tower body and rotate under the action of the motor; the first screw rods are respectively provided with a first nut, and the initial positions of the first nuts are at a discharging position; two second nuts are respectively arranged on the second screw in a high-low manner, and the initial positions are respectively positioned at the cache position and the reaction position;
the bearing bin is in a rectangular groove shape and is divided into a bearing bin A part and a bearing bin B part, the bearing bin A part and the bearing bin B part are divided into two sides along the central line of the rectangular groove, and the central line is parallel to the long side of the rectangular groove; two long edges of the bearing bin are respectively detachably connected with a first nut through an adjustable connecting piece, and an electromagnet is arranged on the first nut;
the adjustable connecting piece comprises a movable block, a hinged shaft and a metal pad, wherein a long edge of the bearing bin is connected with one surface of the movable block through an electric push rod telescopic shaft, the bottom of the other surface of the movable block is hinged with the bottom of one surface of the metal pad through the hinged shaft, so that the movable block can rotate along the hinged shaft, the top of the metal pad is provided with the electric push rod, the telescopic end of the electric push rod faces downwards and is connected with the top of the movable pad, when the electric push rod arranged on the long edge of the bearing bin does not work, a space is reserved between the metal pad and a first nut, if the electric push rod on the long edge of the bearing bin works, the metal pad can be stretched, so that the metal pad is close to the first nut, if an electromagnet of the first nut is electrified, meanwhile, the nut on a long-edge screw rod is respectively connected with a part of the bearing bin and a part of the bearing bin B part through the adjustable connecting piece, and the A part of the bearing bin and the B part of the bearing bin move along with the first nut;
two short edges of the bearing bin are detachably connected with a second nut through a fixed connecting piece respectively, the fixed connecting piece comprises a metal pad and a rubber pad, the second nut is upwards provided with an electromagnet, and the rubber pad is connected between the metal pad and the short edges of the bearing bin;
still be equipped with the temporary support electric putter in buffer memory position and reaction position, the drive unit setting that supports electric putter temporarily sets up at the tower body outer wall, sets up porosely on the tower body, supplies the flexible end of temporary support electric putter to stretch into, and flexible end is equipped with the electro-magnet, bears the weight of the storehouse outer wall and is equipped with the temporary connection pad of the metal material that stretches out and draws back the electro-magnet that shortens with the temporary support electric putter.
As a preferred technical scheme, the surface of the loading bin A part opposite to the loading bin B part is provided with a rubber strip.
As an optimal technical scheme, still include the shrouding device, the shrouding device is equipped with the shrouding including setting up the outer container at the tower body outer wall in the outer container, and be equipped with the strip hole that supplies the shrouding to pass on the tower body wall, the one end of shrouding is located the outer container, and be equipped with rotatable shrouding screw rod in the outer container, be equipped with the shrouding nut of being connected with the shrouding on the shrouding screw rod, the shrouding screw rod is connected with the motor, thereby drive the straight reciprocating motion of shrouding, make during the other end of shrouding can be packed into tower body wall strip hole, also can extend to adjustable connector in the tower body and fixed connector's metal pad department.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 schematically shows a cross-sectional view of one side of an adsorption column according to the present invention;
FIG. 2 schematically shows a cross-sectional view of the other side of the adsorption column of the present invention;
fig. 3 schematically shows a partially enlarged view of a portion a in fig. 1;
fig. 4 schematically shows a partially enlarged view of portion B in fig. 1;
FIG. 5 schematically shows a top view of a load-bearing cartridge;
figure 6 shows schematically the construction of a closure plate according to the present invention.
Wherein the figures include the following reference numerals:
1-tower body, 2-smoke inlet, 3-smoke outlet, 4-feed inlet, 5-discharge outlet, 6-bearing bin A part, 7-bearing bin B part, 8-long-edge screw rod, 9-nut, 10-short-edge screw rod, 11-sealing plate, 12-rubber pad, 13-metal pad, 14-rubber strip, 15-electric push rod, 16-movable block and 17-articulated shaft.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure; unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application; as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures; it will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
Example 1
As shown in fig. 1-2, the sintering flue gas treatment device for simultaneous desulfurization and denitrification includes an active coke adsorption tower and an active coke regeneration tower, and the same as the prior art, the inlet 4 of the adsorption tower is communicated with the outlet of the regeneration tower through a feeding device; the discharge port 5 of the adsorption tower is communicated with the feed inlet of the regeneration tower through a feeding device. And the adsorption tower is provided with a smoke inlet 2 and a smoke outlet 3.
In the invention, the structure of the active coke adsorption tower is improved.
The active coke adsorption tower comprises a tower body 1 and three bearing bins arranged in the tower body 1. The tower body 1 is defined with three working positions from top to bottom, namely a buffer position, a reaction position and a material discharging position. The smoke inlet 2 is positioned between the material discharging position and the reaction position; the smoke outlet 3 is positioned between the buffer position and the reaction position.
Like the prior art, the upper portion is the cube structure in this embodiment tower body 1, and the lower part is the pyramid structure.
In the tower body 1, corresponding both sides are equipped with vertical long limit screw rod respectively, but long limit screw rod bottom rotary set is in tower body 1, and the tower body 1 is worn out at the top and is connected with the motor for long limit screw rod is rotatable. And a space is reserved between the long-edge screw and the middle upper part of the tower body 1 and the corresponding side wall.
The other two corresponding sides in the tower body 1 are respectively provided with a vertical short-edge screw rod, the bottom of the short-edge screw rod can be rotatably arranged in the tower body 1, and the top of the short-edge screw rod penetrates out of the tower body 1 to be connected with a motor, so that the short-edge screw rod can rotate. And a space is reserved between the short-edge screw and the middle upper part of the tower body 1 and the corresponding side wall.
The whole bearing bin is of a rectangular groove structure with an opening at the top, and the bottom of the rectangular groove is of a ventilating net structure. The bearing bin is used for bearing the active coke. The long side of the rectangular groove corresponds to the long side screw rod, and the short side corresponds to the short side screw rod.
The bearing bin is divided into a bearing bin A part 6 and a bearing bin B part 7, the bearing bin A part 6 and the bearing bin B part 7 are divided into two sides along the central line of the rectangular groove, and the central line is parallel to the long side of the rectangular groove. The surface of the bearing chamber A part 6 opposite to the bearing chamber B part 7 is provided with a rubber strip 14.
Two long edges of the bearing bin are detachably connected with nuts 9 on the long-edge screw rods through adjustable connecting pieces respectively, and electromagnets are arranged on one surfaces, facing the bearing bin, of the nuts 9.
The adjustable connecting piece includes movable block 16, articulated shaft 17, metal pad 13, bears the weight of the long limit of storehouse and is connected with the one side of movable block 16 through electric putter 15 telescopic shaft, and articulated shaft 17 and metal pad 13 one side bottom are passed through to movable block 16 another side bottom for movable block 16 can rotate along articulated shaft 17, as shown in fig. 3 and fig. 4. The top of the metal pad 13 is provided with an electric push rod 15, and the telescopic end of the electric push rod 15 faces downwards and is connected with the top of the movable pad. When the electric push rod 15 arranged on the long edge of the bearing bin does not work, a distance is reserved between the metal pad 13 and the nut 9 on the long-edge screw rod, if the electric push rod 15 arranged on the long edge of the bearing bin works, the metal pad can extend, the metal pad 13 abuts against the nut 9 on the long-edge screw rod, if the electromagnet of the nut 9 on the long-edge screw rod is electrified, meanwhile, the nut 9 on the long-edge screw rod is respectively connected with the A part 6 of the bearing bin and the B part 7 of the bearing bin through an adjustable connecting piece, and the A part 6 of the bearing bin and the B part 7 of the bearing bin move along with the nut 9 on the long-edge screw rod.
Two short edges of the bearing bin are detachably connected with nuts 9 of the short edge screw rods through fixed connecting pieces respectively. The fixed connecting piece comprises a metal pad 13 and a rubber pad 12. And an electromagnet is also arranged on one surface of the nut 9 on the short-edge screw rod, which faces the bearing bin. Rubber pads 12_ are connected between the metal pads 13 and the short sides of the load compartment.
In this embodiment, the bearing bins are three, and when SOx/NOx control during operation, respectively from the top down be located buffer position, reaction position and row material position.
The structure of the embodiment has the technical effects that: the active coke is moved up and down through the bearing bin from the buffer position to the reaction position and then to the discharging position instead of being realized by the free falling body of the active coke, and the problem that the service life of the active coke is influenced because the active coke is broken under the fall in the prior art is solved.
Specifically, the three bearing bins from top to bottom in fig. 1-2 are named as No. 1 bearing bin, No. 2 bearing bin and No. 3 bearing bin respectively.
No. 1 bears the weight of the storehouse and is located the feed inlet 4 below, and is comparatively close with feed inlet 4 position to minimize, fall into the active burnt drop in No. 1 bears the weight of the storehouse from feed inlet 4. At this time, the bearer bin No. 1 is located in the cache bit. Receives regenerated active coke transported from the regeneration tower.
When the active coke in the No. 2 bearing bin at the reaction position reaches the set working time (the active coke for desulfurization and denitrification is saturated at the time), then the No. 2 bearing bin needs to move to the discharging position, the No. 1 bearing bin needs to move to the reaction position at the time, and the No. 3 bearing bin moves from the lowest part to the uppermost buffer position to buffer the regenerated active carbon. That is to say, the No. 1 bearing bin, the No. 2 bearing bin and the No. 3 bearing bin form displacement circulation at the cache bit-reaction bit-discharge bit-cache bit-reaction bit in sequence in the whole working process.
The structure described above in this embodiment is designed to realize this cyclic operation.
Firstly, the electric push rod 15 connected with the long edge of the bearing bin at the original buffer position does not work, so that the adjustable connecting piece and the nut 9 on the corresponding long-edge screw rod are spaced to form a bearing bin back-pushing channel (namely, the bearing bin at the lowest part returns to the uppermost part). In the bearing bin of the buffer position, an electric push rod 15 connected with a metal pad 13 in an adjustable connecting piece does not work, and an electromagnet on a nut 9 on a short-edge screw rod corresponding to the short edge works to adsorb the metal pad 13 of the fixed connecting piece of the short edge of the bearing bin. At this time, the part a and the part B of the load compartment are not separated, and a rectangular groove shape is formed, as shown in fig. 5. The bearing bin positioned in the cache position is fixedly connected with the short-edge screw rod at the moment and is not connected with the long-edge screw rod. Therefore, when the short-edge screw rotates downwards under the drive of the motor, the bearing bin descends from the buffer position to the reaction position.
Secondly, the electric push rod 15 connected with the long edge of the bearing bin at the reaction position does not work, so that the adjustable connecting piece and the nut 9 on the corresponding long-edge screw rod are spaced to form a bearing bin back-pushing channel (namely, the bearing bin at the lowest part returns to the uppermost part). In the bearing bin of the reaction position, an electric push rod 15 connected with a metal pad 13 in an adjustable connecting piece does not work, and an electromagnet on a nut 9 on a short-edge screw rod corresponding to the short edge works to adsorb the metal pad 13 of the fixed connecting piece on the short edge of the bearing bin. At this time, the part A and the part B of the bearing bin are not separated, and a rectangular slot shape is formed, as shown in figure 1. The bearing bin positioned at the reaction position is fixedly connected with the short-edge screw rod at the moment and is not connected with the long-edge screw rod. Therefore, when the short-side screw rod rotates downwards under the driving of the motor, the bearing bin descends from the reaction position to the discharge position.
Then, the bearing bin in the material discharging position needs to discharge materials, so that the electric push rod 15 connected to the long side of the bearing bin is started, the corresponding electromagnet on the nut 9 of the long-side screw rod is started, the metal pad 13 of the adjustable connecting piece is connected with the nut 9 on the long-side screw rod in an adsorption mode, the electromagnet in the nut 9 of the short-side screw rod corresponding to the short side of the bearing bin in the material discharging position is closed, and the bearing bin forms a bearing bin A part 6 and a bearing bin B part 7 which are separated at this time. The electric push rod 15 on the metal pad 13 of the adjustable connecting piece works, the push rod movable pad rotates around the hinge shaft, so as to drive the A part 6 and the B part 7 of the bearing bin to gradually incline until the two parts are vertical to the ground, as shown in figures 1 and 4, at the moment, the saturated active coke on the bottom of the bearing bin falls into the conical lower part of the tower body 1, and is sent to the regeneration tower through the discharge opening 5. After the material discharge of the bearing bin positioned at the material discharge opening 5 is finished. At the moment, the long-edge screw rod rotates under the driving of the motor, and the bearing bin positioned at the material discharging position is connected together through the nut 9 on the long-edge screw rod at the moment, so that the bearing bin moves along with the bearing bin, passes through the back jacking channel of the bearing bin and returns to the buffer position. After returning to the buffer position, the long-edge electric push rod 15 of the bearing bin is closed to work, the electromagnet of the nut 9 on the long-edge screw rod stops working, and the adjustable connecting piece is separated from the adjustable connecting piece.
And then, circularly displacing the bearing bins located at the three different working positions again. The active coke moves along with the bearing bin instead of freely falling, so that the problem of crushing caused by fall is solved.
In this embodiment, the bearing bin is rectangular, and the long side of the bearing bin is provided with an electric push rod 15 to control the adjustable connecting piece and the long-side screw rod to form a bearing bin back-jacking channel, so that the bearing bin at the bottom can avoid the bearing bin at the high position and the middle position and return to the buffer position at the top. And the long-edge screw and the short-edge screw are respectively driven to realize the purpose.
In this embodiment, a sealing plate 11 is further provided to force the flue gas to pass through the activated coke at the reaction site. In this embodiment, owing to bear the weight of the structure setting of the long limit screw rod and the minor face screw rod of storehouse and its displacement of control, consequently, it has the ventilation gap to be located between the storehouse itself and the 1 inner wall of tower body of bearing of reaction position, if direct ventilation, then can take place, has sintering flue gas portion not directly to get into the space between buffer position and the reaction position from the ventilation gap through the active burnt in the storehouse that bears of reaction position to from 3 direct discharges on the exhaust port, just can not reach SOx/NOx control's effect.
Therefore, be equipped with the shrouding device in this embodiment, the shrouding device is including setting up the outer container at 1 outer wall of tower body, be equipped with shrouding 11 in the outer container, and be equipped with the strip hole that supplies shrouding 11 to pass on 1 wall of tower body, the one end of shrouding 11 is located the outer container, and be equipped with rotatable shrouding screw rod in the outer container, be equipped with the shrouding nut 9 of being connected with shrouding 11 on the shrouding screw rod, thereby be connected with the motor, thereby drive the straight reciprocating motion of shrouding 11, make during the other end ability income 1 wall strip hole of shrouding 11 tower body, also can extend to the adjustable connector in the tower body 1 and fixed connector's metal pad 13 departments, as figure 1, figure 2 and figure 5 are shown. Of course, each side of the tower body 1 is provided with a closing plate device, and the closing plate device is respectively contacted with the metal pad 13 corresponding to the corresponding side of the tower body, so that a ventilation gap is closed (a back channel of the bearing bin is blocked), and forced air passes through the active coke at the reaction position. When the bearing bin of buffer position will move down to arrange the material position, and arrange the bearing bin of material position and will divide into A portion and B portion upward movement to buffer position time, the shrouding motor reversal, shrouding 11 returns in the slotted hole of 1 wall of tower body, does not hinder the motion.
In this embodiment, the structure of the sealing plate 11 is as shown in fig. 6, an adhesive tape groove is formed on an end surface of the sealing plate facing the screw, two rubber strips 14 are arranged in the adhesive tape groove, the two rubber strips 14 are attached to each other, and when the sealing plate passes through the long-side screw or the short-side screw, the screw passes through the two rubber strips 14, so that the rubber strips 14 are kept attached to each other and closed except the screw.
All the electric parts of the whole equipment are controlled to work under the action of the controller, and the working program is written into the controller.
Further, in the present embodiment, in order to control the positions of the nuts 9 on the long-side screws and the short-side screws, the present embodiment is further designed such that the present embodiment has only two pairs of nuts 9 on the short-side screws and only one pair of nuts 9 on the long-side screws. Hereinafter, the short-side screw nut 9 is simply referred to as a "short-side nut", and the long-side screw nut 9 is simply referred to as a "long-side nut". Two short-edge nuts which are the same in height and are respectively positioned on the two short-edge screw rods are a pair of short-edge nuts, and the long-edge nuts are arranged in the same way.
The initial positions of the two pairs of short-edge nuts are a cache bit and a response bit respectively. The initial positions of the long-edge nuts are the material discharging positions. Namely, when the long-side nut reaches the buffer position, the long-side nut needs to be moved downwards again to the material discharging position. The two short-side nuts need to return to the reaction position-material discharging position again after respectively changing from the buffer position-reaction position to the reaction position-material discharging position. Because the short-edge screw rod can drive the straight reciprocating motion, the short-edge nut positioned above in the two pairs of short-edge nuts is always positioned above. Because the movement track of the upper pair of short-side nuts should be a buffer position-reaction position-buffer position, and the movement track of the lower pair of short-side nuts should be a reaction position-discharge position-reaction position. The method is realized by forward rotation and reverse rotation of the short-edge screw.
That is, the present embodiment further includes the following structures and workflow:
in this embodiment, temporary support electric push rods 15 are further disposed at the buffer position and the reaction position for temporary support. The temporary support motor ram 15 at the reaction site is positioned away from the closure plate means and closure plate 11.
The drive unit of the temporary support electric push rod 15 is arranged on the outer wall of the tower body 1, a hole is formed in the tower body 1, the telescopic end of the temporary support electric push rod 15 extends into the hole, and an electromagnet is arranged at the telescopic end. That is to say, when supporting electric putter 15 out of work temporarily, its flexible end electro-magnet is out of work, and is located 1 downthehole of tower body, when supporting electric putter 15 during operation temporarily, its extension, the electro-magnet work is connected with the absorption of the temporary connection pad (metal material) that bears the weight of the storehouse outer wall.
With the structure, the following working procedures are also available:
no. 1 bearing bin and No. 2 bearing bin which are arranged from top to bottom move to a reaction position and a material discharge position from the buffer position and the reaction position respectively under the action of the short-side nuts, and two pairs of corresponding short-side nuts are also located at the reaction position and the material discharge position respectively. No. 3 bears the weight of storehouse upward movement to the buffer memory position this moment, and buffer memory position has not had the minor face nut this moment, and No. 3 bears the weight of the storehouse and will resume the form that bears the weight of the storehouse as shown the top in figure 1, then relies on the interim support electric putter 15 that is located the buffer memory position, and its extension adsorbs and supports No. 3 bears the weight of the storehouse, and electric putter 15 stops working on the adjustable connecting piece metal pad 13 this moment, and bears the weight of the long limit stop work of storehouse for bear the weight of the rectangular trough type of storehouse normal position again. And the long-edge screw rod rotates reversely, and the pair of long-edge nuts move downwards to return to the material discharging position for connecting to the No. 2 bearing bin which needs to return to the buffer position in the next flow.
Because upper and lower two pairs of minor face nuts are being located reaction position and row material position respectively this moment, can't support the connection to No. 3 bearing storage chamber that has been located the buffer position (do not connect with, No. 3 bearing storage chamber just can't move to the reaction position once more). Therefore, two pairs of short-side nuts are required to be returned. The temporary electric push rod positioned at the reaction position and the telescopic end electromagnet work, so that the temporary connecting pad on the outer wall of the No. 1 bearing bin is connected and supported, and the electromagnet on the short-edge nut stops working at the moment, so that the short-edge nut and the No. 1 bearing bin are separated.
The electric push rod 15 located on the long edge of the No. 2 bearing bin of the material discharging position works, so that the adjustable connecting piece is connected with the long-edge nut of the long-edge screw rod, the electromagnet on the short-edge nut does not work at the moment, and the short-edge nut is separated from the No. 2 bearing bin.
Divide into two pairs of minor face nuts that are located reaction position and row material position from top to bottom at this moment and get back to the buffer position and reaction position respectively under the reversal of minor face screw rod, when getting back to buffer position and reaction position, electromagnet work on two pairs of minor face nuts, and the fixed connection piece that is located No. 3 bearing bins of buffer position, is located No. 1 bearing bins of reaction position respectively at this moment adsorbs the connection, interim electric putter and flexible end electromagnet stop work. This realizes the entire workflow.
In this embodiment, although the sealing plate 11 needs to be opened when the loading bin is from the reaction position to the discharge position and the loading bin is from the discharge position to the buffer position, the opening time of the sealing plate 11 may be shorter than 1s because of the high speed, and if the motor rotates at a high speed, the motor rotates at a short speed, so that the sintering flue gas is not stopped from being fed, and the overall desulfurization and denitrification effect is not affected.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The sintering flue gas treatment device for simultaneous desulfurization and denitrification comprises an active coke adsorption tower and an active coke regeneration tower, wherein a feed inlet of the adsorption tower is communicated with a discharge outlet of the regeneration tower through a feeding device; the discharge hole of the adsorption tower is communicated with the feed hole of the regeneration tower through a feeding device, and the adsorption tower is provided with a smoke inlet and a smoke outlet; the tower body is provided with three working positions from top to bottom, namely a buffer position, a reaction position and a material discharging position, and a smoke inlet is positioned between the material discharging position and the reaction position; the exhaust port is located between buffer position and the reaction position, its characterized in that: the active coke adsorption tower comprises a tower body, three bearing bins for bearing active coke are arranged in the tower body, the bearing bins are square groove type, and the bottom of the bearing bins is a ventilating net; the bearing bin circularly shifts at the cache position, the reaction position and the material discharging position under the action of the driving device;
the driving device for driving the bearing bin to displace comprises a first screw and a second screw; the two first screw rods are respectively rotatably arranged at two corresponding sides in the tower body and rotate under the action of the motor; the two second screws are respectively rotatably arranged on the other corresponding two sides in the tower body and rotate under the action of the motor; the first screw rods are respectively provided with a first nut, and the initial positions of the first nuts are at a discharging position; two second nuts are respectively arranged on the second screw in a high-low manner, and the initial positions are respectively positioned at the cache position and the reaction position;
the bearing bin is in a rectangular groove shape and is divided into a bearing bin A part and a bearing bin B part, the bearing bin A part and the bearing bin B part are divided into two sides along the central line of the rectangular groove, and the central line is parallel to the long side of the rectangular groove; two long edges of the bearing bin are respectively detachably connected with a first nut through an adjustable connecting piece, and an electromagnet is arranged on the first nut;
the adjustable connecting piece comprises a movable block, a hinged shaft and a metal pad, wherein a long edge of the bearing bin is connected with one surface of the movable block through an electric push rod telescopic shaft, the bottom of the other surface of the movable block is hinged with the bottom of one surface of the metal pad through the hinged shaft, so that the movable block can rotate along the hinged shaft, the top of the metal pad is provided with the electric push rod, the telescopic end of the electric push rod faces downwards and is connected with the top of the movable pad, when the electric push rod arranged on the long edge of the bearing bin does not work, a space is reserved between the metal pad and a first nut, if the electric push rod on the long edge of the bearing bin works, the metal pad can be stretched, so that the metal pad is close to the first nut, if an electromagnet of the first nut is electrified, meanwhile, the nut on a long-edge screw rod is respectively connected with a part of the bearing bin and a part of the bearing bin B part through the adjustable connecting piece, and the A part of the bearing bin and the B part of the bearing bin move along with the first nut;
two short edges of the bearing bin are detachably connected with a second nut through a fixed connecting piece respectively, the fixed connecting piece comprises a metal pad and a rubber pad, the second nut is upwards provided with an electromagnet, and the rubber pad is connected between the metal pad and the short edges of the bearing bin;
still be equipped with the temporary support electric putter in buffer memory position and reaction position, the drive unit setting that supports electric putter temporarily sets up porosely at the tower body outer wall on the tower body, supplies the flexible end of supporting electric putter temporarily to stretch into, and flexible end is equipped with the electro-magnet, bears the weight of the storehouse outer wall and is equipped with the temporary connection pad of the metal material that stretches the electro-magnet that shortens with the temporary support electric putter.
2. The simultaneous desulfurization and denitrification sintering flue gas treatment device according to claim 1, characterized in that: the opposite surfaces of the A part of the bearing bin and the B part of the bearing bin are provided with rubber strips.
3. The simultaneous desulfurization and denitrification sintering flue gas treatment device according to claim 1, characterized in that: still include the shrouding device, the shrouding device is including setting up the outer container at the tower body outer wall, be equipped with the shrouding in the outer container, and be equipped with the strip hole that supplies the shrouding to pass on the tower body wall, the one end of shrouding is located the outer container, and be equipped with rotatable shrouding screw rod in the outer container, be equipped with the shrouding nut of being connected with the shrouding on the shrouding screw rod, the shrouding screw rod is connected with the motor, thereby drive the straight reciprocating motion of shrouding, make during the other end of shrouding can receive tower body wall strip hole, also can extend to the adjustable connector in the tower body and fixed connector's metal pad department.
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| CN202011178585.8A CN112403192B (en) | 2020-10-29 | 2020-10-29 | Sintering flue gas treatment device capable of simultaneously performing desulfurization and denitrification |
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