CN212091662U - Side-blown furnace flue gas treatment device - Google Patents
Side-blown furnace flue gas treatment device Download PDFInfo
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- CN212091662U CN212091662U CN202021837084.1U CN202021837084U CN212091662U CN 212091662 U CN212091662 U CN 212091662U CN 202021837084 U CN202021837084 U CN 202021837084U CN 212091662 U CN212091662 U CN 212091662U
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Abstract
The utility model discloses a side blown converter flue gas processing apparatus relates to SOx/NOx control technical field, and the main objective carries out the SOx/NOx control and sells the processing to side blown converter exhaust flue gas. The utility model discloses a main technical scheme does: side-blown furnace flue gas processing apparatus includes: the first side wall and the second side wall are oppositely arranged, a partition plate groove is arranged in the shell, one side wall of the partition plate groove is connected to the first side wall, a space is arranged between the other side wall of the partition plate groove and the second side wall, the part of the first side wall above the partition plate groove is provided with an air inlet, the air inlet is connected to a flue opening of the side-blown furnace, and the part of the second side wall above the partition plate groove is provided with an air outlet; the one end of shower is connected in the lower extreme side of casing down, and the other end runs through in the roof of casing, and a plurality of first deflectors and a plurality of second deflectors alternate arrangement are equipped with first through-hole between the upper end of first deflector and the roof of casing in the upper shell.
Description
Technical Field
The utility model relates to a SOx/NOx control technical field especially relates to a side blown furnace flue gas processing apparatus.
Background
In the traditional side-blown converter smelting process, for the solid hazardous waste containing copper and nickel, because the solid hazardous waste contains a large amount of elements such as sulfur, nitre and the like, and organic matters formed by the elements often generate a large amount of harmful gases containing sulfur, nitre and the like in the waste slag smelting process, the flue gas generated by the solid hazardous waste containing copper and nickel cannot be directly discharged. The conventional method is to adopt the activated carbon to carry out adsorption treatment on the tail end of the flue gas, but the method needs to consume a large amount of activated carbon, so that the flue gas treatment cost is greatly increased, and the activated carbon adsorption only transfers harmful gas into a solid phase adsorbent, so that the harmful gas cannot be thoroughly removed, and the hazardous waste treatment cost of enterprises is increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a side-blown converter flue gas processing apparatus, the main objective is to carry out the desulfurization and take off a market to the flue gas of side-blown converter exhaust.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the utility model provides a side-blown converter flue gas processing apparatus, the device includes: a housing and a processing section;
the shell is provided with a first side wall and a second side wall, the first side wall and the second side wall are arranged oppositely, a partition plate groove is formed in the shell and used for dividing the shell into an upper shell and a lower shell, one side wall of the partition plate groove is connected to the first side wall, a space is formed between the other side wall of the partition plate groove and the second side wall, the part, above the partition plate groove, of the first side wall is provided with an air inlet, the air inlet is connected to a flue opening of a side-blowing furnace, and the part, above the partition plate groove, of the second side wall is provided with an air outlet;
the processing part comprises a spraying pipe and a baffle plate, one end of the spraying pipe is connected to the lower end side of the lower shell, the other end of the spraying pipe penetrates through the top wall of the lower shell, the baffle plate comprises a plurality of first baffle plates and a plurality of second baffle plates, the first baffle plates and the second baffle plates are alternately arranged in the upper shell, a first through hole is formed between the upper end of each first baffle plate and the top wall of the lower shell, the lower end of each first baffle plate is lower than the upper edge of the other side wall of the partition plate groove, the upper end of each second baffle plate is connected to the top wall of the lower shell, and the lower end of each second baffle plate is higher than the upper edge of the other side wall of the partition plate groove.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, the other end of the spraying pipe is connected to one end of each of a plurality of branch pipes, each of the branch pipes is located between the adjacent first baffle plate and the adjacent second baffle plate, and the other end of each of the branch pipes is connected to the spiral nozzle.
Optionally, still include the separation part, the separation part includes collecting tank, transfer line and hydrocyclone separation mechanism, hydrocyclone separation mechanism includes tangential import, upper end export and lower extreme export, the collecting tank is located the spaced below is used for receiving the warp solution that another lateral wall upper edge overflow of baffle groove got off, the lateral wall of collecting tank connect in the one end of transfer line, the other end of transfer line connect in the tangential import, upper end exit linkage is in the lateral wall of casing down, lower extreme exit linkage is in filter-pressing mechanism.
Optionally, a second through hole is formed between the upper end of the liquid collecting tank and the bottom wall of the clapboard groove.
Optionally, the lateral wall of lower casing is connected in the fluid infusion pipe, the fluid infusion pipe is equipped with the fluid infusion valve.
Optionally, a wedge surface is arranged on the bottom wall of the lower shell, the wedge surface inclines from the first side wall to the second side wall, and one end of the spray pipe is connected to the first side wall.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
when the device is used, a certain volume of ammonia water solution is filled in the lower shell, and the partition plate groove is filled with the ammonia water solution, so that the lower end of the first baffle plate is immersed in the ammonia water solution, and the second baffle plate is positioned above the ammonia water solution. In the operation process of the side-blown converter, the flue gas discharged from the flue port of the side-blown converter enters the upper shell through the air inlet and is sequentially and repeatedly turned over through the first through hole and the lower end of the second baffle plate, so that the flue gas forms folded air flow in the upper shell. In the above-mentioned in-process, aqueous ammonia solution in the casing reaches the roof of casing through the shower down to in the blowout supreme casing, sulfur dioxide or acid gas such as nitrogen dioxide in aqueous ammonia and the flue gas take place neutralization reaction, and finally fall to the baffle inslot, aqueous ammonia solution after the reaction overflows from the opposite side wall top edge in baffle groove, and fall to the lower casing internal through the interval, in order to be equipped with the shower again with the aqueous ammonia solution drainage to the casing in the lower casing, thereby realize aqueous ammonia solution circulation contact flue gas. And the flue gas after desulfurization and denitration is discharged out of the shell through the exhaust port.
Drawings
Fig. 1 is a schematic structural view of a side-blown converter flue gas treatment device provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another side-blown furnace flue gas treatment device provided by the embodiment of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a shell 1, a first side wall 2, a second side wall 3, a partition plate groove 4, an air inlet 5, an air outlet 6, a spray pipe 7, a first baffle plate 8, a second baffle plate 9, a first through hole 10, a spray pump 11, a branch pipe 12, a spiral spray nozzle 13, a liquid collecting tank 14, a liquid conveying pipe 15, a rotary liquid separating mechanism 16, a tangential inlet 17, an upper end outlet 18, a lower end outlet 19, an infusion pump 20, a second through hole 21, a liquid supplementing pipe 22 and a liquid supplementing valve 23.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, an embodiment of the present invention provides a side-blown converter flue gas treatment device, which includes: a housing 1 and a processing section;
the shell 1 is provided with a first side wall 2 and a second side wall 3, the first side wall 2 and the second side wall 3 are oppositely arranged, a partition plate groove 4 is arranged in the shell 1 and used for dividing the shell 1 into an upper shell and a lower shell, one side wall of the partition plate groove 4 is connected to the first side wall 2, a gap is arranged between the other side wall of the partition plate groove 4 and the second side wall 3, a gas inlet 5 is arranged at the part of the first side wall 2 above the partition plate groove 4, the gas inlet 5 is connected to a flue opening of a side-blown furnace, and a gas outlet 6 is arranged at the part of the second side wall 3 above the partition plate groove 4;
the treatment part comprises a spray pipe 7 and a baffle plate, one end of the spray pipe 7 is connected to the lower end side of the lower shell, the other end of the spray pipe 7 penetrates through the top wall of the shell 1, the baffle plate comprises a plurality of first baffle plates 8 and a plurality of second baffle plates 9, the first baffle plates 8 and the second baffle plates 9 are alternately arranged in the upper shell, a first through hole 10 is formed between the upper end of the first baffle plate 8 and the top wall of the shell 1, the lower end of the first baffle plate 8 is lower than the upper edge of the other side wall of the partition plate groove 4, the upper end of the second baffle plate 9 is connected to the top wall of the shell 1, and the lower end of the second baffle plate 9 is higher than the upper edge of the other side wall of the partition plate groove 4.
The working process of the side-blown furnace flue gas treatment device is as follows:
when the device is used, a certain volume of ammonia water solution is filled in the lower shell, and the partition plate groove 4 is filled with the ammonia water solution, so that the lower end of the first baffle plate 8 is immersed in the ammonia water solution, and the second baffle plate 9 is positioned above the ammonia water solution. In the operation process of the side-blown converter, the flue gas discharged from the flue port of the side-blown converter enters the upper shell through the air inlet 5 and is sequentially and repeatedly turned over through the lower ends of the first through hole 10 and the second baffle plate 9, so that the flue gas forms folded air flow in the upper shell. In the above-mentioned process, aqueous ammonia solution in the casing reaches the roof of casing 1 through shower 7 down, and spout to in the casing, sulfur dioxide or acid gas such as nitrogen dioxide in aqueous ammonia and the flue gas take place neutralization reaction, and finally fall to in baffle groove 4, aqueous ammonia solution after the reaction overflows from the opposite side wall upper edge in baffle groove 4, and fall to the lower casing internal through the interval, in order to be equipped with shower 7 again with the aqueous ammonia solution drainage to the casing in the lower casing, thereby realize aqueous ammonia solution circulation contact flue gas. And the flue gas after desulfurization and denitration is discharged out of the shell 1 through the exhaust port 6.
The technical scheme of the utility model in, the flue gas is the book shape air current in last casing, has prolonged the flue gas and has been in the mobile stroke of last casing, has prolonged the contact time of flue gas and aqueous ammonia solution. Meanwhile, a gap is reserved between the lower end of the first baffle plate 8 and the bottom wall of the baffle plate groove 4, and a gap is reserved between the lower end of the second baffle plate 9 and the bottom wall of the baffle plate groove 4, so that the liquid level of the ammonia water solution in the baffle plate groove 4 is guaranteed to be equal in height, and the lower end of the first baffle plate 8 is immersed to the same height.
Specifically, the spray pipe 7 is provided with a spray pump 11 for providing power for the circular spraying of the ammonia water solution.
Specifically, 6 departments of gas vent are equipped with the defroster for the moisture in the exhaust gas is waited to the filtering.
As shown in fig. 1, in the embodiment, the other ends of the showers 7 are respectively connected to one ends of a plurality of branch pipes 12, each branch pipe 12 is located between the adjacent first baffle plate 8 and the second baffle plate 9, and the other end of each branch pipe 12 is connected to a spiral nozzle 13.
In this embodiment, specifically, aqueous ammonia solution spouts to the gas phase space between adjacent first baffling board 8 and the second baffling board 9 through bleeder 12 and spiral spray 13 in proper order, when guaranteeing that the flue gas baffling flows to each gas phase space, all can experience the process that is sprayed to guarantee to contain the abundant contact of sulphur containing nitre material and aqueous ammonia in the flue gas, thereby improve the treatment effeciency that contains sulphur containing nitre material in the flue gas.
As shown in fig. 2, in a specific embodiment, the filter press further comprises a separation part, the separation part comprises a liquid collecting tank 14, a liquid conveying pipe 15 and a cyclone separation mechanism 16, the cyclone separation mechanism 16 comprises a tangential inlet 17, an upper end outlet 18 and a lower end outlet 19, the liquid collecting tank 14 is located below the partition and used for receiving a solution overflowing from the upper edge of the other side wall of the partition board tank 4, the side wall of the liquid collecting tank 14 is connected to one end of the liquid conveying pipe 15, the other end of the liquid conveying pipe 15 is connected to the tangential inlet 17, the upper end outlet 18 is connected to the side wall of the lower shell, and the lower end outlet 19 is connected to the plate frame filter press mechanism.
In the above embodiment, specifically, because the flue gas also contains dust generated by the side-blown converter reaction, along with the spraying of the ammonia water solution, the dust is dissolved in the ammonia water solution in the partition plate groove 4 to form a sludge ammonia water solution, the sludge finally settles into the lower shell along with the ammonia water solution continuously overflowing the partition plate groove 4, and the sludge component continuously settles into the lower shell with a limited volume, so that the cleanliness of the ammonia water solution sprayed out again by the spraying pipe 7 is inevitably affected, and the separation effect of the dust and the flue gas is affected.
In the present embodiment, specifically, the mixed liquid of ammonia water and sludge overflowing the separator tank 4 flows to the liquid collecting tank 14 through the partition pipe 15, and then enters the hydrocyclone 16 through the liquid conveying pipe 15. In the hydrocyclone separation mechanism 16, the sludge with heavy components flows out through a lower end outlet 19 of the hydrocyclone separation mechanism 16, reaches a plate frame filter pressing mechanism and is pressed into filter cakes so as to be convenient for waste utilization; the clear aqueous ammonia solution of light component then flows to the inferior valve internally from upper end export 18 in the hydrocyclone separation mechanism 16 to avoid a large amount of mud to deposit in inferior valve internally, guarantee that shower 7 spun aqueous ammonia solution continuously keeps limpid, thereby guarantee the effect of spraying to dust in the flue gas.
Specifically, the hydrocyclone separation mechanism 16 comprises a cylindrical part and an inverted conical part which are connected up and down, wherein a tangential inlet 17 is positioned in the circumferential tangential direction of the cylindrical part, an upper end outlet 18 is positioned in the center of the upper end surface of the cylindrical part, and a lower end outlet 19 is positioned at the lower end of the inverted conical part.
Specifically, the fluid line 15 is connected to the fluid delivery pump 20 for increasing the fluid flow rate at the tangential inlet 17 of the hydrocyclone separation assembly 16 to provide a velocity basis for the rotational separation of the light and heavy components in the hydrocyclone separation assembly 16. The density of the sludge component is greater than the density of other components in the ammonia solution, so that the sludge flows out from the lower outlet 19, and the ammonia clear liquid flows out from the upper outlet 18.
In the embodiment shown in fig. 2, a second through hole 21 is provided between the upper end of the sump 14 and the bottom wall of the partition plate tub 4.
In this embodiment, specifically, when the tangential inlet 17 is blocked by mud or other abnormal conditions, and the aqueous ammonia solution containing the mud component can not flow out of the liquid collecting tank 14 in time, in order to avoid the aqueous ammonia solution in the liquid collecting tank 14 to flow back to the partition plate groove 4, the second through hole 21 is specially arranged, and the aqueous ammonia solution in the liquid collecting tank 14 can directly enter the lower shell through the second through hole 21.
In the embodiment shown in fig. 1 or fig. 2, the sidewall of the lower housing is connected to a liquid replenishing pipe 22, and the liquid replenishing pipe 22 is provided with a liquid replenishing valve 23.
In this embodiment, owing to get into the ammonia water solution of hydrocyclone separation mechanism 16 and divide into two the tunnel, only wherein get into the lower casing all the way, so this device is long-time to be moved, and the ammonia water solution liquid level in the lower casing can descend, needs in time to supply the aqueous ammonia, so specially sets up fluid infusion pipe 22, and fluid infusion pipe 22 can connect in plate frame filter pressing mechanism to the raffinate drainage that separates out the acquisition after pressing the filter cake with plate frame filter pressing mechanism returns the lower casing, avoids additionally replenishing new ammonia water solution in a large number, in order to save the cost.
As shown in fig. 1 or fig. 2, in a specific embodiment, the bottom wall of the lower casing is provided with a wedge surface, the wedge surface is inclined from the first side wall 2 to the second side wall 3, and one end of the shower pipe 7 is connected to the first side wall 2.
In this embodiment, specifically, the upper surface of the lower casing is provided with a wedge surface, and one end of the shower pipe 7 is located at the upper end of the wedge surface. The hydrocyclone 16 can not separate all the sludge into ammonia solution, and no matter whether the device is provided with the hydrocyclone 16 or not, the device can deposit the sludge in the lower shell after long-time operation. In the embodiment, the deposited sludge slides down to the lower end of the wedge surface along the wedge surface, so that the deposited sludge is prevented from directly entering the spray pipe 7.
Specifically, the lower end of the second side wall 3 is further provided with a liquid discharge pipe, and the liquid discharge pipe is further provided with a liquid discharge valve.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a side blown converter flue gas processing apparatus which characterized in that includes:
the side-blown converter comprises a shell, wherein the shell is provided with a first side wall and a second side wall, the first side wall and the second side wall are arranged oppositely, a partition plate groove is formed in the shell and used for dividing the shell into an upper shell and a lower shell, one side wall of the partition plate groove is connected to the first side wall, a space is formed between the other side wall of the partition plate groove and the second side wall, the part of the first side wall above the partition plate groove is provided with an air inlet, the air inlet is connected to a flue opening of the side-blown converter, and the part of the second side wall above the partition plate groove is provided with an air outlet;
the processing part comprises a spraying pipe and a baffle plate, one end of the spraying pipe is connected to the lower end side of the lower shell, the other end of the spraying pipe penetrates through the top wall of the lower shell, the baffle plate comprises a plurality of first baffle plates and a plurality of second baffle plates, the first baffle plates and the second baffle plates are alternately arranged in the upper shell, a first through hole is formed between the upper end of the first baffle plate and the top wall of the shell, the lower end of the first baffle plate is lower than the upper edge of the other side wall of the partition plate groove, the upper end of the second baffle plate is connected to the top wall of the shell, and the lower end of the second baffle plate is higher than the upper edge of the other side wall of the partition plate groove.
2. The side-blown furnace flue gas treatment device according to claim 1,
the other end of the spraying pipe is respectively connected with one end of a plurality of branch pipes, each branch pipe is positioned between the adjacent first baffling plate and the second baffling plate, and the other end of each branch pipe is connected with the spiral spray head.
3. The side-blown furnace flue gas treatment device according to claim 1,
still include the separation part, the separation part includes collecting tank, transfer line and hydrocyclone separating mechanism, hydrocyclone separating mechanism includes tangential import, upper end export and lower extreme export, the collecting tank is located the spaced below is used for receiving the warp solution that another lateral wall upper edge overflow of baffle groove got off, the lateral wall of collecting tank connect in the one end of transfer line, the other end of transfer line connect in the tangential import, upper end exit linkage is in the lateral wall of casing down, lower extreme exit linkage is in sheet frame filter-pressing mechanism.
4. The side-blown furnace flue gas treatment device according to claim 3,
and a second through hole is formed between the upper end of the liquid collecting tank and the bottom wall of the clapboard groove.
5. The side-blown furnace flue gas treatment device according to claim 3 or 4,
the lateral wall of casing is connected in the fluid infusion pipe down, the fluid infusion pipe is equipped with the fluid infusion valve.
6. The side-blown furnace flue gas treatment device according to any one of claims 1 to 4,
the bottom wall of the lower shell is provided with a wedge surface, the wedge surface inclines from the first side wall to the second side wall, and one end of the spray pipe is connected to the first side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021837084.1U CN212091662U (en) | 2020-08-28 | 2020-08-28 | Side-blown furnace flue gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021837084.1U CN212091662U (en) | 2020-08-28 | 2020-08-28 | Side-blown furnace flue gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212091662U true CN212091662U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021837084.1U Active CN212091662U (en) | 2020-08-28 | 2020-08-28 | Side-blown furnace flue gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212091662U (en) |
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2020
- 2020-08-28 CN CN202021837084.1U patent/CN212091662U/en active Active
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