CN116726608A - Primary gravity dust collector of coke dry quenching - Google Patents
Primary gravity dust collector of coke dry quenching Download PDFInfo
- Publication number
- CN116726608A CN116726608A CN202310726256.XA CN202310726256A CN116726608A CN 116726608 A CN116726608 A CN 116726608A CN 202310726256 A CN202310726256 A CN 202310726256A CN 116726608 A CN116726608 A CN 116726608A
- Authority
- CN
- China
- Prior art keywords
- channel
- dust removing
- ash bucket
- dust
- dust removal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 100
- 238000010791 quenching Methods 0.000 title claims abstract description 23
- 230000000171 quenching effect Effects 0.000 title claims abstract description 23
- 230000005484 gravity Effects 0.000 title claims abstract description 17
- 239000000571 coke Substances 0.000 title claims description 3
- 238000005192 partition Methods 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000003763 carbonization Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a dry quenching primary gravity dust removing device, which comprises a dust removing channel, a large ash bucket, a small ash bucket, a partition wall and a retaining wall; the dust removing channel consists of a top surface, a side surface and a bottom surface; the large ash hoppers are arranged below the bottom surface, and the small ash hoppers are arranged in a line or in a serpentine manner along the left side of the dust removal channel; the retaining wall is arranged at the upper opening end of the big ash bucket; the partition wall is a plurality of channels, is arranged in the dust removing channel and is positioned right above the big ash bucket or the small ash bucket. The invention adopts the combination of the large ash bucket and the small ash bucket, so that the plurality of ash buckets collect the coke powder more timely, and the reduction of the flow area caused by coke powder accumulation is avoided; the two side surfaces of the partition walls and the dust removal channel are fixedly connected, wherein the leftmost partition wall near the outlet end of the carbonization furnace is flush with the top surface of the dust removal channel, and an air passage is reserved between the rest partition walls and the top surface of the dust removal channel, so that the flow speed of circulating gas is improved, and the dust removal efficiency and effect are improved.
Description
Technical Field
The invention relates to the technical field of dry quenching dust removal, in particular to a dry quenching primary gravity dust removal device.
Background
Dust removal is an important procedure of a dry quenching process, and a dust removal device is one of main equipment for dry quenching production. The dry quenching primary dust removing device is mainly process equipment for carrying out dust removing treatment on dry quenching circulating gas by utilizing the gravity dust removing principle, and mainly comprises structural forms such as large retaining walls, retaining wall-free walls, error differences and the like according to the structural form. At present, the dust remover adopting the large retaining wall structure is easy to deform and damage due to the large wind receiving surface and large expansion amount of the retaining wall, the maintenance cost is higher, the dust removing efficiency of the dust remover without the retaining wall and the error structure is lower, the dust removing effect is poor, the condition that large particle dust is not removed easily occurs, and the influence on the normal work of the subsequent waste heat boiler is larger.
Through computer simulation, most coke powder can fall on the straight section of the primary dust remover in advance in the dry quenching production operation process to form accumulation, so that the circulating gas flow sectional area of the dust remover is reduced, and the dust removal effect is reduced. Practice has shown that the use of an excessively large ash bucket, although reducing the accumulation of coke powder to some extent, does not create the effect of a sudden expansion of the flow cross section. If the accumulated coke powder can be effectively and timely removed, the circulating gas flow sectional area is enlarged, the dust removal efficiency of the dry quenching Jiao Chongli dust remover can be greatly improved, and the abrasion of large-particle coke powder to the subsequent waste heat boiler and the pipeline thereof is avoided.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention solves the technical problem of providing a dry quenching primary gravity dust collector, which adopts a plurality of small ash hoppers which are arranged in a straight line or in a serpentine shape along a dust collection channel near the outlet end of a carbonization furnace, wherein the large ash hoppers and the small ash hoppers are combined for use, and the plurality of ash hoppers collect coke powder more timely, so that the reduction of the flow area caused by coke powder accumulation is avoided; the two side surfaces of the partition walls and the dust removal channel are fixedly connected, wherein the leftmost partition wall near the outlet end of the carbonization furnace is flush with the top surface of the dust removal channel, and an air passage is reserved between the rest partition walls and the top surface of the dust removal channel, so that the flow speed of circulating gas is improved, and the dust removal efficiency and effect are improved.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a dry quenching primary gravity dust removing device comprises a dust removing channel, a big ash bucket, a small ash bucket, a partition wall and a retaining wall; the dust removing channel is a square hole-shaped structure consisting of a top surface, a side surface and a bottom surface; the large ash hoppers are arranged below the bottom surface of the right side of the dust removing channel, and the small ash hoppers are arranged in a straight shape or in a serpentine shape along the left side of the dust removing channel; the retaining wall is arranged on the bottom surface of the dust removing channel at the upper opening end of the big ash bucket; the partition wall is a plurality of channels, is arranged in the dust removing channel and is positioned right above the big ash bucket or the small ash bucket.
Further, the partition wall is fixedly connected with two side surfaces of the dust removal channel, wherein the partition wall at the leftmost side is flush with the top surface of the dust removal channel, and an air passage is reserved between the rest partition walls and the top surface of the dust removal channel.
Further, the included angle between the partition wall and the horizontal direction is 60-90 degrees.
Further, the height of the retaining wall is 150-1250 mm.
Further, the transverse width of the small ash bucket is more than or equal to half of the width of the bottom surface of the dust removing channel.
Further, the top surface of the dust removing channel is of a staggered structure, the top surface is divided into a front section and a rear section, and the elevation of the rear section is higher than that of the front section.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention adopts a plurality of small ash hoppers which are arranged in a straight line or in a serpentine shape along the dust removing channel near the outlet end of the carbonization furnace, the large ash hoppers and the small ash hoppers are combined for use, the plurality of ash hoppers collect the coke powder more timely, the flow area is prevented from becoming smaller due to the accumulation of the coke powder, and the dust removing effect is improved;
2) The invention adopts a plurality of partition walls to be fixedly connected with the two side surfaces of the dust removing channel, wherein the partition wall at the leftmost side, namely near the outlet end of the carbonization furnace, is flush with the top surface of the dust removing channel, and an air passing channel is reserved between the rest partition walls and the top surface of the dust removing channel, so that the flow speed of circulating gas is improved, and the dust removing efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the principle of the dry quenching primary gravity dust collector;
FIG. 2 is a schematic view of the structural principle of section A-A in FIG. 1;
fig. 3 is a schematic view of the structural principle of the section B-B in fig. 1.
Reference numerals illustrate:
in the figure: 1-top surface, 2-side surface, 3-bottom surface, 4-dust removal channel, 5-big ash bucket, 6-small ash bucket, 7-barricade, 8-barricade.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "left", "right", "horizontal", "vertical", "upper", "lower", "front", "rear", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
1-3, the invention relates to a dry quenching primary gravity dust removing device, which comprises a dust removing channel 4, a large ash bucket 5, a small ash bucket 6, a partition wall 8 and a retaining wall 7; the dust removing channel 4 is a square hole-shaped structure consisting of a top surface 1, a side surface 2 and a bottom surface 3; the large ash hoppers 5 are arranged below the bottom surface 3 on the right side of the dust removing channel 4, the small ash hoppers 6 are arranged in a line or in a serpentine shape along the left side of the dust removing channel 4 below the bottom surface 3 of the dust removing channel 4, the large ash hoppers 5 and the small ash hoppers 6 are combined for use, and a plurality of ash hoppers collect the coke powder more timely at the same time, so that the flow area is prevented from becoming smaller due to coke powder accumulation, and the dust removing effect is improved; the retaining wall 7 is arranged on the bottom surface 3 of the dust removing channel 4 at the upper opening end of the big ash bucket 5; the partition wall 8 is a plurality of channels, is arranged in the dust removing channel 4 and is positioned right above the big ash bucket 5 or the small ash bucket 6.
Further, the partition wall 8 is fixedly connected with the two side surfaces 2 of the dust removal channel 4, wherein the partition wall 8 at the leftmost side is flush with the top surface 1 of the dust removal channel 4, and an air passage is reserved between the rest partition walls 8 and the top surface 1 of the dust removal channel 4, so that the flow speed of circulating gas can be increased, and the dust removal efficiency is improved.
Further, the included angle between the partition wall 8 and the horizontal direction is 60-90 degrees.
Further, the height of the retaining wall 7 is 150-1250 mm.
Further, the transverse width of the small ash bucket 6 is more than or equal to half of the width of the bottom surface 1 of the dust removing channel 4.
Further, the top surface 1 of the dust removing channel 4 is of a staggered structure, the top surface 1 is divided into a front section and a rear section, and the elevation of the rear section is higher than that of the front section.
[ example ]
The dry quenching primary gravity dust removing device comprises a dust removing channel 4, a large ash bucket 5, a small ash bucket 6, a partition wall 8 and a retaining wall 7; the dust removing channel 4 is a square hole-shaped structure consisting of a top surface 1, a side surface 2 and a bottom surface 3; the big ash hoppers 5 are arranged below the right bottom surface 3 of the dust removing channel 4, the number of the small ash hoppers 6 is three, two small ash hoppers are one large, the large ash hoppers and the big ash hoppers 5 are arranged in a line, two small ash hoppers are staggered and snakelike (shown in figure 2), the big ash hoppers 5 and the small ash hoppers 6 are combined for use, and a plurality of ash hoppers collect coke powder more timely at the same time, so that the flow area is prevented from becoming smaller due to coke powder accumulation, and the dust removing effect is improved; the height of the retaining wall 7 is 250mm, and the retaining wall is arranged on the bottom surface 3 of the dust removing channel 4 at the upper opening end of the large ash bucket 5, so that the secondary flying of large-particle coal powder can be prevented; the partition walls 8 are four (the included angle between the partition walls 8 and the horizontal direction is 75 degrees), are arranged in the dust removing channel 4 and are positioned right above the big ash bucket 5 or the small ash bucket 6, wherein the leftmost partition walls 8 are flush with the top surface 1 of the dust removing channel 4, and an air passing channel is reserved between the rest partition walls 8 and the top surface 1 of the dust removing channel 4, so that the circulating gas flow speed can be improved, and the dust removing efficiency is improved.
The left end of the dust collector is connected with the outlet of the dry quenching furnace through a high-temperature expansion joint, and the right end of the dust collector is connected with the waste heat boiler through a high-temperature expansion joint.
Circulating gas from the outlet of the dry quenching furnace enters from the left end of the dust removal device and flows to the right end, a first partition wall 8 hung on the top surface 1 plays a role in blocking and guiding the upper circulating gas, dust in the circulating gas is decelerated after impacting a retaining wall 8 and is sunk under the action of inertia to change the direction downwards, the circulating gas at the lower part is decelerated or changed in direction during turbulence, and finally the circulating gas is sunk to the bottom surface 3 under the action of gravity and is discharged through a small ash bucket 6; the circulating gas passes through the blocking of the multi-pass retaining wall 8, more than 90% of coal dust particles finally sink to the bottom surface 3 under the action of gravity and are discharged through the big ash bucket 5 or the small ash bucket 6, and the circulating gas after primary dust removal flows out from the right end of the dust removal device and enters the subsequent waste heat boiler.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The dry quenching primary gravity dust removing device is characterized by comprising a dust removing channel, a large ash bucket, a small ash bucket, a partition wall and a retaining wall; the dust removing channel is a square hole-shaped structure consisting of a top surface, a side surface and a bottom surface; the large ash hoppers are arranged below the bottom surface of the right side of the dust removing channel, and the small ash hoppers are arranged in a straight shape or in a serpentine shape along the left side of the dust removing channel; the retaining wall is arranged on the bottom surface of the dust removing channel at the upper opening end of the big ash bucket; the partition wall is a plurality of channels, is arranged in the dust removing channel and is positioned right above the big ash bucket or the small ash bucket.
2. The primary gravity dust collector for dry quenching coke according to claim 1, wherein the partition wall is fixedly connected with two side surfaces of the dust collecting channel, wherein the leftmost partition wall is flush with the top surface of the dust collecting channel, and an air passage is reserved between the rest partition walls and the top surface of the dust collecting channel.
3. The primary gravity dust collector for dry quenching as claimed in claim 1, wherein the partition wall has an included angle of 60-90 ° with the horizontal direction.
4. The primary gravity dust removal device for dry quenching of claim 1, wherein the height of the retaining wall is 150-1250 mm.
5. The primary gravity dust removal device for dry quenching of claim 1, wherein the lateral width of the small ash hopper is greater than or equal to half of the width of the bottom surface of the dust removal channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726256.XA CN116726608A (en) | 2023-06-19 | 2023-06-19 | Primary gravity dust collector of coke dry quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726256.XA CN116726608A (en) | 2023-06-19 | 2023-06-19 | Primary gravity dust collector of coke dry quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116726608A true CN116726608A (en) | 2023-09-12 |
Family
ID=87918217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310726256.XA Pending CN116726608A (en) | 2023-06-19 | 2023-06-19 | Primary gravity dust collector of coke dry quenching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116726608A (en) |
-
2023
- 2023-06-19 CN CN202310726256.XA patent/CN116726608A/en active Pending
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