CN215233164U - Pelletizing flue gas purification device of belt type roasting machine - Google Patents
Pelletizing flue gas purification device of belt type roasting machine Download PDFInfo
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- CN215233164U CN215233164U CN202122896478.5U CN202122896478U CN215233164U CN 215233164 U CN215233164 U CN 215233164U CN 202122896478 U CN202122896478 U CN 202122896478U CN 215233164 U CN215233164 U CN 215233164U
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Abstract
The utility model discloses a belt roasting machine pelletizing gas cleaning device, include: the tower body is provided with an active coke feeding port, an active coke discharging port and a flue gas outlet; the first partition plate is filled with an active coke bed layer, and an active coke feeding port and an active coke discharging port are communicated with the inside of the first partition plate; the second partition plate is sleeved outside the lower part of the first partition plate; the third partition plate is annular and is sleeved outside the first partition plate, the third partition plate is positioned above the second partition plate, and the flue gas outlet is positioned above the third partition plate; the active coke filter plate is arranged in the first partition plate and is positioned between the second partition plate and the third partition plate; and two ends of the flue gas inlet pipe are respectively communicated with the pellet flue gas outlet of the belt type roasting machine, the lower part of the first partition plate and the area among the second partition plates. The utility model discloses a set up the burnt filter plate of activity in first baffle, can fall into the two-stage with the burnt bed of activity, through the effect step by step of two-stage bed, can improve the desorption efficiency of pollutant.
Description
Technical Field
The utility model relates to a belt roasting machine pelletizing gas cleaning field. More specifically, the utility model relates to a belt type roasting machine pelletizing gas cleaning device.
Background
A great deal of SO can be generated in the pellet roasting process2、NOxIf the flue gas is directly discharged, the environment can be seriously polluted.
The active coke desulfurization and denitrification technology is a dry desulfurization and denitrification technology, and the principle is that flue gas enters an adsorption tower, then passes through an active coke bed layer, and SO is in the active coke bed layer2、NOxAnd the like are removed.
The adsorption tower is the core equipment of the active coke desulfurization and denitrification process, but the existing adsorption tower has the problem of low pollutant removal efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a belt roasting machine pelletizing gas cleaning device falls into the two-stage through active coke filter plate with active coke bed layer, and the intraformational active coke of one-level bed of lower part contacts with the flue gas earlier, carries out the desulfurization to the flue gas, and the flue gas of desulfurization contacts with the intraformational fresh active coke of second grade bed on upper portion again, carries out NO to the flue gas and carries out NOxAnd (4) removing, thereby ensuring higher pollutant removal efficiency.
In order to achieve these objects and other advantages in accordance with the present invention, there is provided a belt-type roasting machine pellet flue gas purification apparatus, comprising:
the top of the tower body is provided with an active coke feeding port, the bottom of the tower body is provided with an active coke discharging port, and the side wall of the tower body is provided with at least one flue gas outlet;
the first partition plate is cylindrical and is arranged in the vertical direction, the top and the bottom of the first partition plate are respectively connected with the top and the bottom of the tower body, the first partition plate is separated from the inner side wall of the tower body by a certain distance, an active coke bed layer is filled in the first partition plate, the active coke feeding port and the active coke discharging port are both communicated with the inside of the first partition plate, and the side wall of the first partition plate is provided with a grating plate;
the second partition plate is cylindrical, is sleeved outside the lower part of the first partition plate and is separated from the lower part of the first partition plate by a certain distance, and the top and the bottom of the second partition plate are respectively fixed with the junction of the lower part and the middle part of the first partition plate and the bottom of the tower body and are in seamless connection;
the third clapboard is annular, the inner ring of the third clapboard is fixedly and seamlessly connected with the outer side wall of the first clapboard, the outer ring of the third clapboard is fixedly and seamlessly connected with the inner side wall of the tower body, the third clapboard is positioned above the second clapboard and is separated from the second clapboard by a certain distance, and the flue gas outlet is positioned above the third clapboard;
the active coke filter plate is arranged in the first partition plate and divides the active coke bed layer into a first-stage bed layer and a second-stage bed layer from top to bottom, and the active coke filter plate is positioned between the second partition plate and the third partition plate;
and two ends of the flue gas inlet pipe are respectively communicated with the pellet flue gas outlet of the belt type roasting machine, the lower part of the first partition plate and the area among the second partition plates.
Preferably, in the flue gas purification device for pellets of the belt-type roasting machine, the upper part and the middle part of the first partition plate are both cylindrical and coaxially arranged, the inner diameter and the outer diameter are the same, and the diameter of the lower part is gradually reduced to be in a shape of a circular truncated cone.
Preferably, in the flue gas purification device for pellets of the belt-type roasting machine, the tower body is cylindrical and is coaxially arranged with the first partition plate.
Preferably, in the flue gas purification device for pellets of the belt roasting machine, the second partition plate is cylindrical and is coaxially arranged with the first partition plate, and the outer diameter of the second partition plate is equal to the outer diameter of the middle part of the first partition plate.
Preferably, in the flue gas purification device for pellets of the belt-type roasting machine, two flue gas outlets are arranged on the side wall of the tower body, and the two flue gas outlets are symmetrically arranged relative to the axis of the tower body.
Preferably, in the belt type roasting machine pellet flue gas purification device, an ash discharge port is formed in the side wall of the lower part of the tower body;
the pelletizing gas cleaning device of the belt type roasting machine further comprises:
the fourth baffle, it is the annular, and the inner circle of fourth baffle is fixed and seamless connection with the lateral wall of second baffle, and the outer lane is fixed and seamless connection with the inside wall of tower body, and the fourth baffle slopes down gradually from one end to the other end, the exhanst gas outlet is located the top of the other end of fourth baffle, and is close to the other end of fourth baffle.
Preferably, in the flue gas purification device for pellets of the belt-type roasting machine, the active coke feeding port is arranged in the center of the top of the tower body, and the active coke discharging port is arranged in the center of the bottom of the tower body.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a set up the active burnt filter plate in first baffle, can fall into the active burnt bed layer two-stage, through the effect step by step of the active burnt bed layer of two-stage, can improve the desorption efficiency of pollutant.
The utility model discloses an active burnt inlet port can be to the active burnt of first baffle internal loading, can derive the active burnt in the first baffle is whole through active burnt discharge opening for it is convenient to load and unload.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a pellet flue gas purification device of a belt type roasting machine according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model provides a belt type roasting machine pellet gas cleaning device, include:
the device comprises a tower body 1, wherein the top of the tower body is provided with an active coke feeding port 101, an active coke feeding hopper is arranged at the active coke feeding port 101, the bottom of the tower body is provided with an active coke discharging port 102, an active coke discharging hopper is arranged at the active coke discharging port 102, and the side wall of the tower body is provided with at least one flue gas outlet 103;
the first partition plate 2 is cylindrical and is arranged in the vertical direction, the top and the bottom of the first partition plate 2 are respectively fixed and seamlessly connected with the top and the bottom of the tower body 1, the first partition plate 2 is separated from the inner side wall of the tower body 1 by a certain distance to form a smoke circulation space, an active coke bed layer is filled in the first partition plate 2, the active coke feeding port 101 and the active coke discharging port 102 are both communicated with the inside of the first partition plate 2, and the side wall of the first partition plate 2 is provided with a grating plate;
the second partition plate 3 is cylindrical, is sleeved outside the lower part of the first partition plate 2, and is separated from the lower part of the first partition plate 2 by a certain distance so as to form a gas collection chamber between the lower part of the first partition plate 2 and the second partition plate 3, and the top and the bottom of the second partition plate 3 are respectively fixed with the junction of the lower part and the middle part of the first partition plate 2 and the bottom of the tower body 1 and are in seamless connection;
the third partition plate 4 is annular, the inner ring of the third partition plate 4 is fixedly and seamlessly connected with the outer side wall of the first partition plate 2, the outer ring of the third partition plate 4 is fixedly and seamlessly connected with the inner side wall of the tower body 1, namely, the third partition plate 4 is sleeved outside the upper part of the first partition plate 2 and divides the area between the tower body 1 and the first partition plate 2, the third partition plate 4 is positioned above the second partition plate 3 and is separated from the second partition plate 3 by a certain distance, and the flue gas outlet 103 is positioned above the third partition plate 4;
the active coke filter plate 5 is arranged in the first partition plate 2 and divides the active coke bed layer into a first-stage bed layer and a second-stage bed layer from top to bottom, and the active coke filter plate 5 is positioned between the second partition plate 3 and the third partition plate 4; the active coke filter plate 5 can ensure that the active coke passes through from top to bottom, and the passing amount of the smoke from bottom to top is less than 2 percent.
And two ends of the flue gas inlet pipe 6 are respectively communicated with the zone among the pellet flue gas outlet 103 of the straight grate type roasting machine, the lower part of the first partition plate 2 and the second partition plate 3.
The belt roasting machine pelletizing gas cleaning device that this scheme provided, when using, loads active coke in to first baffle 2 through active coke inlet 101, later the inside of first baffle 2 is filled to active coke, and active coke filter plate 5 separates into one-level bed and second grade bed with active coke bed. The pellet flue gas of the belt type roasting machine is introduced into the area between the lower part of the first partition plate 2 and the second partition plate 3 through a flue gas introduction pipe 6, then the flue gas passes through the grating plate at the lower part of the first partition plate 2 and enters the primary bed layer, the flue gas and the active coke in the primary bed layer are subjected to physicochemical reaction, and part of SO is2The adsorbed and primarily purified flue gas enters an area between the tower body 1 and the first partition plate 2 (the area is positioned below the third partition plate 4), then passes through the grid plate positioned between the third partition plate 4 and the active coke filter plate 5 on the first partition plate 2 and then enters the secondary bed layer to further carry out physicochemical reaction with fresh active coke, and NH is added into the secondary bed layer3Carrying out NOxAnd (4) removing. The flue gas after two times of purification is discharged through the flue gas outlet 103. When the active coke needs to be replaced, the active coke in the first partition plate 2 can be led out through the active coke discharge port 102.
In another technical scheme, in the flue gas purification device for pellets of the belt type roasting machine, the upper part and the middle part of the first partition plate 2 are both cylindrical and coaxially arranged, the inner diameter and the outer diameter are the same, and the diameter of the lower part is gradually reduced to be in a circular truncated cone shape.
In another technical scheme, in the flue gas purification device for pellets of the belt type roasting machine, the tower body 1 is cylindrical and is coaxially arranged with the first partition plate 2.
In another technical scheme, in the flue gas purification device for pellets of the straight grate type roasting machine, the second partition plate 3 is cylindrical and is arranged coaxially with the first partition plate 2, and the outer diameter of the second partition plate 3 is equal to the outer diameter of the upper part and the middle part of the first partition plate 2.
In another technical scheme, in the flue gas purification device for pellets of the belt type roasting machine, two flue gas outlets 103 are arranged on the side wall of the tower body 1, and the two flue gas outlets 103 are symmetrically arranged relative to the axis of the tower body 1.
In another technical scheme, in the flue gas purification device for pellets of the belt type roasting machine, an ash discharge opening 104 is formed in the side wall of the lower part of the tower body 1;
the pelletizing gas cleaning device of the belt type roasting machine further comprises:
the fourth baffle 7, it is the annular, and the inner circle of fourth baffle 7 is fixed and seamless connection with the lateral wall of second baffle 3, and the outer lane is fixed and seamless connection with the inside wall of tower body 1, and fourth baffle 7 cover is established in the outside of second baffle 3 promptly to cut apart the region between tower body 1 and the second baffle 3, fourth baffle 7 from one end downward sloping gradually towards the other end, exhanst gas outlet 103 is located the top of the other end of fourth baffle 7, and is close to the other end of fourth baffle 7. The ash in the flue gas can be guided to the flue gas outlet 103 through the fourth partition 7 and is guided out through the flue gas outlet 103.
In another technical scheme, in the flue gas purification device for pellets of a belt type roasting machine, the active coke feeding port 101 is arranged in the center of the top of the tower body 1, the active coke discharging port 102 is arranged in the center of the bottom of the tower body 1, and when the active coke needs to be replaced, all the active coke in the first partition plate 2 can be discharged through the active coke discharging port 102.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. Pelletizing gas cleaning device of belt roasting machine, its characterized in that includes:
the top of the tower body is provided with an active coke feeding port, the bottom of the tower body is provided with an active coke discharging port, and the side wall of the tower body is provided with at least one flue gas outlet;
the first partition plate is cylindrical and is arranged in the vertical direction, the top and the bottom of the first partition plate are respectively connected with the top and the bottom of the tower body, the first partition plate is separated from the inner side wall of the tower body by a certain distance, an active coke bed layer is filled in the first partition plate, the active coke feeding port and the active coke discharging port are both communicated with the inside of the first partition plate, and the side wall of the first partition plate is provided with a grating plate;
the second partition plate is cylindrical, is sleeved outside the lower part of the first partition plate and is separated from the lower part of the first partition plate by a certain distance, and the top and the bottom of the second partition plate are respectively fixed with the junction of the lower part and the middle part of the first partition plate and the bottom of the tower body and are in seamless connection;
the third clapboard is annular, the inner ring of the third clapboard is fixedly and seamlessly connected with the outer side wall of the first clapboard, the outer ring of the third clapboard is fixedly and seamlessly connected with the inner side wall of the tower body, the third clapboard is positioned above the second clapboard and is separated from the second clapboard by a certain distance, and the flue gas outlet is positioned above the third clapboard;
the active coke filter plate is arranged in the first partition plate and divides the active coke bed layer into a first-stage bed layer and a second-stage bed layer from top to bottom, and the active coke filter plate is positioned between the second partition plate and the third partition plate;
and two ends of the flue gas inlet pipe are respectively communicated with the pellet flue gas outlet of the belt type roasting machine, the lower part of the first partition plate and the area among the second partition plates.
2. The flue gas purification device for pellets of a straight grate type pellet roaster as claimed in claim 1, wherein the upper and middle parts of the first partition are cylindrical and coaxially arranged, and have the same inner and outer diameters, and the diameter of the lower part is gradually reduced to a truncated cone shape.
3. The flue gas purification device for pellets of a belt roaster of claim 2, wherein the tower body has a cylindrical shape and is disposed coaxially with the first partition.
4. The flue gas purification device for pellets of a belt roaster as claimed in claim 3, wherein the second partition is cylindrical and is disposed coaxially with the first partition, and the outer diameter of the second partition is equal to the outer diameter of the middle portion of the first partition.
5. The pellet flue gas purification device of the belt-type roasting machine of claim 3, wherein the side wall of the tower body is provided with two flue gas outlets, and the two flue gas outlets are symmetrically arranged relative to the axis of the tower body.
6. The flue gas purification device for pellets of a belt-type roasting machine of claim 4, wherein an ash discharge port is provided on a side wall of a lower part of the tower body;
the pelletizing gas cleaning device of the belt type roasting machine further comprises:
the fourth baffle, it is the annular, and the inner circle of fourth baffle is fixed and seamless connection with the lateral wall of second baffle, and the outer lane is fixed and seamless connection with the inside wall of tower body, and the fourth baffle slopes down gradually from one end to the other end, the exhanst gas outlet is located the top of the other end of fourth baffle, and is close to the other end of fourth baffle.
7. The flue gas cleaning device for pellets of a belt-type roasting machine of claim 3, wherein the active coke feeding port is provided at the center of the top of the tower body, and the active coke discharging port is provided at the center of the bottom of the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122896478.5U CN215233164U (en) | 2021-11-24 | 2021-11-24 | Pelletizing flue gas purification device of belt type roasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122896478.5U CN215233164U (en) | 2021-11-24 | 2021-11-24 | Pelletizing flue gas purification device of belt type roasting machine |
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| Publication Number | Publication Date |
|---|---|
| CN215233164U true CN215233164U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122896478.5U Active CN215233164U (en) | 2021-11-24 | 2021-11-24 | Pelletizing flue gas purification device of belt type roasting machine |
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| CN (1) | CN215233164U (en) |
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- 2021-11-24 CN CN202122896478.5U patent/CN215233164U/en active Active
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