CN112604442A - Industrial flue gas purification treatment method - Google Patents
Industrial flue gas purification treatment method Download PDFInfo
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- CN112604442A CN112604442A CN202110071608.3A CN202110071608A CN112604442A CN 112604442 A CN112604442 A CN 112604442A CN 202110071608 A CN202110071608 A CN 202110071608A CN 112604442 A CN112604442 A CN 112604442A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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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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Abstract
The invention provides an industrial flue gas purification treatment method, which is a work completed by matching a connecting frame, a filtering retention device, a purification frame, a purification device, a storage frame, an L-shaped frame and a delivery pump.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to an industrial flue gas purification treatment method.
Background
At present, inevitably produce a large amount of industrial waste gas when industrialization is developed fast, these not only can influence the normal production of mill, can cause serious pollution to the environment moreover to cause the injury to human health, consequently before the fume emission, need carry out SOx/NOx control to the flue gas and handle, traditional processing mode is usually put into the chimney with the shower nozzle, carries out the flue gas through the mode of atomizing directly spouting, but this kind of mode often can appear great problem in actual operation.
When flue gas is treated, a single-layer filter screen and a spray head are usually used for filtering and catalyzing the flue gas, but a large amount of dust particles are intercepted behind the filter screen, the blocking condition can occur within a short time, people need to frequently clean the filter screen, and when the spray head is used for catalyzing reaction, a single spray head sprayed catalyst is mostly concentrated at one position, the reaction on the rising flue gas in a large range is difficult to carry out, partial unreacted flue gas is directly discharged into the air, and when the vaporific catalyst is contacted with the rising flue gas, the vaporific catalyst can be discharged and diffused by the flue gas with huge impact force when the unreacted flue gas is not reacted, so that the reaction effect is reduced.
Disclosure of Invention
In order to solve the problems, the invention provides an industrial flue gas purification treatment method, which can solve the problems that in the traditional purification process, a large amount of dust particles are intercepted on a filter screen and then are blocked in a short time, people need to frequently clean the filter screen, and when a spray head is used for catalytic reaction, a single spray head sprays a catalyst which is mostly concentrated at one position and is difficult to perform a large-scale reaction on rising flue gas, so that part of the unreacted flue gas is directly discharged into the air, and when the vaporous catalyst is contacted with the rising flue gas, the vaporous catalyst is possibly discharged together with the flue gas with a huge impact force when the unreacted flue gas is not reacted, so that the reaction effect is reduced, and the like.
In order to achieve the purpose, the invention adopts the following technical scheme that an industrial flue gas purification treatment method comprises the following specific steps:
s1, installation: connecting the lower end of the connecting frame with the existing flue gas discharge pipe, wherein the flue gas discharged by the flue gas discharge pipe sequentially passes through the filtering retention device and the purification frame from bottom to top;
s2, filtering: when the discharged gas passes through the filtering and retaining device, large-particle impurities mixed in the flue gas are blocked and retained through the conveying cavity with the snake-shaped structure and the filter screen;
s3, purification treatment: the second circular plate and the connecting cylinder are driven by the motor to synchronously rotate, the catalyst in the storage frame is conveyed into the connecting cylinder by the conveying pump and is sprayed out from the spraying head, part of atomized catalyst sprayed in the air directly reacts with rising flue gas, and the other part of atomized catalyst is sprayed on the area expanding mechanism, so that the passing flue gas is further reacted;
s4, cleaning: and the whole filtering retention device is taken out periodically, and the taken filtering retention device is disassembled, so that the inner wall of the snake-shaped groove and the filter screen are cleaned, and the filter screen is reassembled to the original position after being cleaned.
In the above-mentioned step S1-S4 to the flue gas purification treatment process, adopt the equipment of specific design to purify the flue gas usually, this equipment specifically includes the link frame, filters to be detained device, purifies frame, purifier, stores frame, L type frame, delivery pump, the middle part of link frame be equipped with and filter to be detained the device, the upper end of link frame is installed and is purified the frame, the internally mounted who purifies the frame has purifier, the left end that purifies the frame is installed L type frame, store the frame and hang and lean on L type frame, store and install the delivery pump on the frame.
The filter is detained the device and is included two butt joint frames, the locking bolt, the filter screen, two embedding pieces, connect through the locking bolt between two butt joint frames that the front and back was arranged, be connected with the filter screen between two butt joint frames, the embedded groove has been seted up in the outside of butt joint frame, and the embedding piece passes in the embedded groove of lock back lock-in after the connection frame, concrete during operation, when detaining the device with filtering and taking out the clearance, take out two embedding pieces earlier around, will merge two butt joint frames after the locking and take out, and unscrew the locking bolt and loosen until two butt joint frame unblock separations, at this moment, take out the filter screen, to the independent pertinence clearance of snake-shaped groove and filter screen on the butt joint frame.
Butt joint frame on seted up the snake-shaped groove, be provided with on the snake-shaped groove inner wall and increase the piece of hindering, and the cross-section that increases the piece of hindering is the triangle-shaped structure, form complete transport chamber between two snake-shaped grooves on two butt joint frames after the combination, the transport chamber is the snake-shaped structural design, has prolonged the transport route of flue gas on the one hand, does benefit to its cooling, on the other hand flue gas makes more partial dust particle attached to transport intracavity wall and increase the piece when the transport chamber of bending, the lower extreme of carrying the chamber is the flaring structure, does benefit to the entering of flue gas.
The purifying device comprises a first circular plate, a connecting cylinder, square blocks, a second circular plate, a motor, a spraying head, an area expanding mechanism and a connecting pipe, wherein the first circular plate is connected with the left end of the purifying frame in a rotating fit manner, the middle part of the first circular plate is sleeved with the connecting cylinder, the left end of the connecting cylinder is connected with the first circular plate through a locking piece, the square blocks are installed at the right end of the connecting cylinder and embedded into the middle part of the second circular plate, the second circular plate is connected with the right end of the purifying frame in a rotating fit manner, the second circular plate is connected with an output shaft of the motor, the motor is installed on the outer side wall of the purifying frame, the spraying head is evenly installed on the connecting cylinder along the circumferential direction of the connecting cylinder, the area expanding mechanism is evenly installed on the connecting cylinder along the circumferential direction of the connecting cylinder, the spraying heads and the area expanding mechanisms which are arranged on the left and the right are, the two are connected in a rotating way, so that the connecting pipe is not moved when the connecting cylinder rotates, the catalyst is conveniently conveyed by the conveying pump, when the flue gas passes through the purification frame, the second circular plate, the connecting cylinder, the spray head and the area expansion mechanism are driven to synchronously rotate by the motor, the catalyst in the storage frame is conveyed into the connecting cylinder by the conveying pump and sprayed out from the spray head, part of atomized catalyst sprayed in the air directly reacts with the rising flue gas, and the other part of atomized catalyst is sprayed on the area expansion mechanism, so that the passing flue gas is further reacted.
As a preferred technical method of the invention, the filter screen comprises a screen body and insertion frames, wherein the insertion frames are symmetrically arranged at the front end and the rear end of the screen body, and the insertion frames are inserted into the butt-joint frame.
In a preferred embodiment of the present invention, the purification frame includes a frame body, an insertion frame, and an insertion member, the insertion frame is mounted at a lower end of the frame body, the insertion frame is inserted into an upper end of the connection frame, and the insertion member is inserted between the connection frame and the insertion frame.
As a preferable technical method of the invention, the sprinkler head is of a mushroom structure, the outer end of the sprinkler head is uniformly provided with the ejection holes, the output hole is communicated with the inner cavity of the connecting cylinder, and the sprinkler head is detachably connected with the connecting cylinder.
As a preferred technical method, the region expanding mechanism comprises a threaded column, a connecting column, a rotating ring and two fan-shaped plates, wherein the threaded column is installed at the inner end of the connecting column, the threaded column is connected with the connecting cylinder in a threaded matching mode, the outer portion of the connecting column is connected with the rotating ring through a bearing, and the two fan-shaped plates are installed at the left end and the right end of the rotating ring.
As a preferable technical method of the invention, the fan-moving plates are of hollow structures, and the two fan-moving plates are arranged in a left-right crossing manner.
The invention has the beneficial effects that:
the invention provides an industrial flue gas purification treatment method, which adopts a conveying cavity with a snake-shaped structure to convey rising flue gas, so that the contact rate of the flue gas with the inner wall of the conveying cavity and a resistance increasing block is increased, the adhesion rate of dust particles in the flue gas is improved, the condition that the dust particles are concentrated on a filter screen in large quantity to cause blockage is avoided, then, the reaction range of the flue gas and a catalyst is improved by adopting a resistance increasing and area expanding spraying mode, a large quantity of sprayed catalyst is adhered to a fan plate, the condition that the catalyst is discharged is avoided, and the reaction effect of the flue gas and the catalyst is improved;
secondly, the industrial flue gas purification treatment method provided by the invention is characterized in that the filtering retention device conveys the flue gas by adopting a conveying cavity with a serpentine structure, the conveying cavity is designed to be in a serpentine structure, on one hand, the conveying path of the flue gas is prolonged, the cooling of the flue gas is facilitated, on the other hand, when the flue gas passes through the bent conveying cavity, more part of dust particles are attached to the inner wall of the conveying cavity and the resistance increasing block, and the condition that the dust particles are excessively and intensively intercepted on the filter screen is avoided;
the purification device drives the sprayed catalyst to perform regional diffusion through the rotating connecting cylinder, part of the atomized catalyst sprayed in the air directly reacts with the rising flue gas, the other part of the atomized catalyst is sprayed on the fan-moving plate, the part of the catalyst cannot be discharged by the impact force of the flue gas, the contact rate between the flue gas and the catalyst is ensured, and meanwhile, the fan-moving plate which swings randomly also slows down the rising speed of the flue gas, and the catalytic effect is ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow diagram of a process for industrial flue gas purification treatment;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is a schematic structural diagram of the present invention between the docking frame and the locking bolt;
FIG. 5 is a schematic view showing the structure between the connector barrel, the dice and the sprinkler head according to the present invention;
FIG. 6 is a schematic structural view of the area expanding mechanism of the present invention;
FIG. 7 is a schematic view of the structure of the filter screen of the present invention;
FIG. 8 is an enlarged view of the invention in section X of FIG. 3;
fig. 9 is a Y-direction partial enlarged view of fig. 3 of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 9, a specific purification treatment method for industrial flue gas is as follows:
s1, installation: the lower end of the connecting frame 1 is connected with the existing flue gas discharge pipe, and the flue gas discharged by the flue gas discharge pipe sequentially passes through the filtering retention device 2 and the purification frame 3 from bottom to top;
s2, filtering: when the discharged gas passes through the filtering and detention device 2, large-particle impurities mixed in the flue gas are blocked and detained through the conveying cavity with the snake-shaped structure and the filter screen 23;
s3, purification treatment: the motor 45 drives the second circular plate 44 and the connecting cylinder 42 to synchronously rotate, the catalyst in the storage frame 5 is conveyed into the connecting cylinder 42 through the conveying pump 7 and is sprayed out from the spraying head 46, part of atomized catalyst sprayed in the air directly reacts with rising flue gas, and the other part of atomized catalyst is sprayed on the area expanding mechanism 47, so that the passing flue gas is further reacted;
s4, cleaning: periodically, the whole filtering retention device 2 is taken out, and the taken filtering retention device 2 is disassembled, so that the inner wall of the snake-shaped groove and the filter screen 23 are cleaned, and the filtering retention device is reassembled to the original position after being cleaned.
In the above-mentioned step S1-S4 to the flue gas purification treatment process, the flue gas is usually purified by a specially designed device, the device specifically includes a connection frame 1, a filtering retention device 2, a purification frame 3, a purification device 4, a storage frame 5, an L-shaped frame 6, and a delivery pump 7, the filtering retention device 2 is disposed in the middle of the connection frame 1, the purification frame 3 is mounted at the upper end of the connection frame 1, the purification device 4 is mounted inside the purification frame 3, the L-shaped frame 6 is mounted at the left end of the purification frame 3, the storage frame 5 is hung on the L-shaped frame 6, and the delivery pump 7 is mounted on the storage frame 5.
Butt joint frame 21 on seted up the snake-shaped groove, be provided with on the snake-shaped inslot wall and increase the piece of hindering, and the cross-section that increases the piece of hindering is the triangle-shaped structure, form complete transport chamber between two snake-shaped grooves on two butt joint frames 21 after the combination, the transport chamber is the snakelike structure design, has prolonged the transport route of flue gas on the one hand, do benefit to its cooling, on the other hand flue gas makes more partial dust particle attached to when the transport chamber of bending on transport intracavity wall and increase the piece of hindering, the lower extreme of carrying the chamber is the flaring structure, does benefit to the entering of flue gas.
The filter screen 23 comprises a screen body 231 and an insertion frame 232, the insertion frame 232 is symmetrically installed at the front end and the rear end of the screen body 231, the insertion frame 232 is inserted into the butt-joint frame 21, the filter screen 23 is in insertion connection with the butt-joint frame 21, and when the two butt-joint frames 21 which are combined are opened, the filter screen 23 is naturally separated from the butt-joint frame 21.
The purification frame 3 comprises a frame body 31, an insertion frame 32 and an insertion piece 33, wherein the insertion frame 32 is installed at the lower end of the frame body 31, the insertion frame 32 is inserted into the upper end of the connection frame 1, the insertion piece 33 is inserted between the connection frame 1 and the insertion frame 32, and the connection frame 1 and the insertion frame 32 are locked and positioned through the insertion piece 33.
The purifying device 4 comprises a first circular plate 41, a connecting cylinder 42, a block 43, a second circular plate 44, a motor 45, a sprinkler 46, an area expanding mechanism 47 and a connecting pipe 48, wherein the first circular plate 41 is connected with the left end of the purifying frame 3 in a rotating fit manner, the connecting cylinder 42 is sleeved in the middle of the first circular plate 41, the left end of the connecting cylinder 42 is connected with the first circular plate 41 through a locking piece, the block 43 is installed at the right end of the connecting cylinder 42, the block 43 is embedded in the middle of the second circular plate 44, the second circular plate 44 is connected with the right end of the purifying frame 3 in a rotating fit manner, the second circular plate 44 is connected with an output shaft of the motor 45, the motor 45 is installed on the outer side wall of the purifying frame 3, the sprinkler 46 is evenly installed on the connecting cylinder 42 along the circumferential direction of the connecting cylinder 42, the area expanding mechanism 47 is evenly installed on the connecting cylinder 42 along the circumferential direction of the connecting cylinder, and, the storage frame 5 is communicated with the connecting pipe 48 and provided with the delivery pump 7, the connecting pipe 48 is connected with the connecting cylinder 42 in a rotating matching mode, and the two are connected in a rotating mode, so that the connecting pipe 48 is not moved when the connecting cylinder 42 rotates, catalyst delivery by the delivery pump 7 is facilitated, during specific work, when smoke passes through the purification frame 3, the second circular plate 44, the connecting cylinder 42, the spraying heads 46 and the area expansion mechanism 47 are driven to rotate synchronously through the motor 45, the catalyst in the storage frame 5 is delivered into the connecting cylinder 42 through the delivery pump 7 and sprayed out from the spraying heads 46, part of atomized catalyst sprayed in air directly reacts with rising smoke, and the other part of atomized catalyst is sprayed on the area expansion mechanism 47, so that the passing smoke is further reacted.
The sprinkler head 46 is of a mushroom structure, the sprinkling area of a single sprinkler head 46 is enlarged, the outer end of the sprinkler head 46 is uniformly provided with the ejection holes, the output hole is communicated with the inner cavity of the connecting cylinder 42, the sprinkler head 46 is detachably connected with the connecting cylinder 42, and when the sprinkler head 46 is blocked, the sprinkler head 46 can be detached and maintained in time.
The region expanding mechanism 47 comprises a threaded column 471, a connecting column 472, a rotating ring 473 and two fan plates 474, the threaded column 471 is installed at the inner end of the connecting column 472, the threaded column 471 is connected with the connecting cylinder 42 in a threaded fit mode, the outer part of the connecting column 472 is connected with the rotating ring 473 through a bearing, the two fan plates 474 are installed at the left end and the right end of the rotating ring 473, as the connecting column 472 and the rotating ring 473 are connected through the bearing, when the connecting cylinder 42 drives the connecting column 472 to rotate, the two fan plates 474 randomly swing along with the rotating ring 473, on one hand, the fan plates 474 slow down the rising speed of smoke, on the other hand, a catalyst sprayed on the fan plates 474 can react with the smoke, the reaction region between the two fan plates is improved, the situation that the smoke does not react and enters the air due to the rising speed of the smoke is greatly reduced, the fan plates 474 are of a hollow structure, and the two fan, hollow out construction and cross arrangement's setting has guaranteed when blockking the flue gas, and the flue gas still can rise, only speed reduces by a wide margin.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An industrial flue gas purification treatment method is characterized in that: the specific purification treatment method comprises the following steps:
s1, installation: the lower end of the connecting frame (1) is connected with the existing flue gas discharge pipe, and the flue gas discharged by the flue gas discharge pipe sequentially passes through the filtering retention device (2) and the purification frame (3) from bottom to top;
s2, filtering: when the discharged gas passes through the filtering and retaining device (2), large-particle impurities mixed in the smoke are blocked and retained through the conveying cavity with the snake-shaped structure and the filter screen (23);
s3, purification treatment: the motor (45) drives the second circular plate (44) and the connecting cylinder (42) to synchronously rotate, the catalyst in the storage frame (5) is conveyed into the connecting cylinder (42) through the conveying pump (7) and is sprayed out from the spraying head (46), part of atomized catalyst sprayed in the air directly reacts with the rising flue gas, and the other part of atomized catalyst is sprayed on the area expanding mechanism (47), so that the passing flue gas is further reacted;
s4, cleaning: periodically taking out the whole filtering retention device (2), and disassembling the taken-out filtering retention device (2), so as to clean the inner wall of the snake-shaped groove and the filter screen (23), and reassembling the filter screen to the original position after cleaning;
in the process of purifying the flue gas in the steps S1-S4, the flue gas is usually purified by specially designed equipment, the equipment specifically comprises a connecting frame (1), a filtering retention device (2), a purifying frame (3), a purifying device (4), a storage frame (5), an L-shaped frame (6) and a conveying pump (7), the filtering retention device (2) is arranged in the middle of the connecting frame (1), the purifying frame (3) is installed at the upper end of the connecting frame (1), the purifying device (4) is installed inside the purifying frame (3), the L-shaped frame (6) is installed at the left end of the purifying frame (3), the storage frame (5) is hung on the L-shaped frame (6), and the conveying pump (7) is installed on the storage frame (5);
the filter retention device (2) comprises two butt-joint frames (21), a locking bolt (22), a filter screen (23) and two embedded blocks (24), the two butt-joint frames (21) which are arranged in the front and at the back are connected through the locking bolt (22), the filter screen (23) is connected between the two butt-joint frames (21), embedded grooves are formed in the outer sides of the butt-joint frames (21), and the embedded blocks (24) penetrate through the connecting frames (1) and then are buckled into the embedded grooves;
a snake-shaped groove is formed in the butt-joint frame (21), a resistance increasing block is arranged on the inner wall of the snake-shaped groove, the section of the resistance increasing block is of a triangular structure, a complete conveying cavity is formed between the two snake-shaped grooves in the two combined butt-joint frames (21), and the lower end of the conveying cavity is of a flaring structure;
the purification device (4) comprises a first circular plate (41), a connecting cylinder (42), a square block (43), a second circular plate (44), a motor (45), a sprinkler head (46), an area expansion mechanism (47) and a connecting pipe (48), wherein the first circular plate (41) is connected with the left end of the purification frame (3) in a rotating fit manner, the connecting cylinder (42) is sleeved in the middle of the first circular plate (41), the left end of the connecting cylinder (42) is connected with the first circular plate (41) through a locking piece, the square block (43) is installed at the right end of the connecting cylinder (42), the square block (43) is embedded in the middle of the second circular plate (44), the second circular plate (44) is connected with the right end of the purification frame (3) in a rotating fit manner, the second circular plate (44) is connected with an output shaft of the motor (45), the motor (45) is installed on the outer side wall of the purification frame (3), the sprinkler head (46) is evenly installed on the connecting cylinder (42), the connecting cylinder (42) is uniformly provided with area expanding mechanisms (47) along the circumferential direction, the spraying heads (46) and the area expanding mechanisms (47) which are arranged at the left and the right are arranged at intervals, the storage frame (5) and the connecting pipe (48) are communicated and provided with the delivery pump (7), and the connecting pipe (48) is connected with the connecting cylinder (42) in a rotating fit manner.
2. The industrial flue gas purification treatment method according to claim 1, characterized in that: the filter screen (23) include dictyosome (231), insert frame (232) are installed to the front and back both ends symmetry of dictyosome (231), insert frame (232) and insert on butt joint frame (21).
3. The industrial flue gas purification treatment method according to claim 1, characterized in that: the purification frame (3) comprises a frame body (31), an insertion frame (32) and an insertion piece (33), wherein the insertion frame (32) is installed at the lower end of the frame body (31), the insertion frame (32) is inserted into the upper end of the connecting frame (1), and the insertion piece (33) is inserted between the connecting frame (1) and the insertion frame (32).
4. The industrial flue gas purification treatment method according to claim 1, characterized in that: the spraying head (46) is of a mushroom structure, the outer end of the spraying head (46) is uniformly provided with spraying holes, the output holes are communicated with the inner cavity of the connecting cylinder (42), and the spraying head (46) is detachably connected with the connecting cylinder (42).
5. The industrial flue gas purification treatment method according to claim 1, characterized in that: expand regional mechanism (47) include screw thread post (471), spliced pole (472), swivel ring (473) and two fan board (474), screw thread post (471) are installed to the inner of spliced pole (472), screw thread post (471) are connected with connecting cylinder (42) through screw-thread fit's mode, the outside of spliced pole (472) is passed through the bearing and is connected with swivel ring (473), two fan boards (474) are installed at both ends about swivel ring (473).
6. The industrial flue gas purification treatment method according to claim 5, characterized in that: the fan movable plates (474) are of hollow structures, and the two fan movable plates (474) are arranged in a left-right crossing mode.
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| CN202110071608.3A CN112604442A (en) | 2021-01-19 | 2021-01-19 | Industrial flue gas purification treatment method |
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Cited By (1)
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| CN117298790A (en) * | 2023-11-18 | 2023-12-29 | 山东鑫万福铝业有限公司 | Section bar aluminium bar heating furnace fume treatment device |
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Application publication date: 20210406 |