CN214167853U - Horizontal gas deacidification device and gas dry-method dust removal system - Google Patents
Horizontal gas deacidification device and gas dry-method dust removal system Download PDFInfo
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- CN214167853U CN214167853U CN202021997874.6U CN202021997874U CN214167853U CN 214167853 U CN214167853 U CN 214167853U CN 202021997874 U CN202021997874 U CN 202021997874U CN 214167853 U CN214167853 U CN 214167853U
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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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
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- Environmental & Geological Engineering (AREA)
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Abstract
本实用新型涉及一种卧式煤气脱酸装置及配置有该卧式煤气脱酸装置的煤气干法除尘系统，该脱酸装置包括卧式脱酸罐，脱酸罐内设有用于喷淋脱酸介质的喷淋结构；脱酸罐连接有煤气入口管和煤气出口管，煤气入口管与煤气出口管中，其中一煤气流通管体连接于脱酸罐的顶部，另一煤气流通管体连接于脱酸罐的其中一端部。本实用新型提供的卧式煤气脱酸装置，采用卧式脱酸罐作为煤气脱酸容器，在保证对煤气的脱酸效果的前提下，能极大地降低设备高度，优化工程设计、降低工程投资，并且便于运营维护；该煤气脱酸装置中，气体流道布置顺畅，煤气压力损失较低，处理气量能够满足实际生产需求。
The utility model relates to a horizontal gas deacidification device and a gas dry dust removal system equipped with the horizontal gas deacidification device. The deacidification device comprises a horizontal deacidification tank, and the deacidification tank is provided with a spraying deacidification tank. The spray structure of the acid medium; the deacidification tank is connected with a gas inlet pipe and a gas outlet pipe. In the gas inlet pipe and the gas outlet pipe, one gas circulation pipe body is connected to the top of the deacidification tank, and the other gas circulation pipe body is connected at one end of the deacidification tank. The horizontal gas deacidification device provided by the utility model adopts the horizontal deacidification tank as the gas deacidification container, and under the premise of ensuring the deacidification effect on the gas, the height of the equipment can be greatly reduced, the engineering design can be optimized, and the engineering investment can be reduced. , and is convenient for operation and maintenance; in the gas deacidification device, the gas flow channel is arranged smoothly, the gas pressure loss is low, and the processing gas volume can meet the actual production demand.
Description
Technical Field
The utility model belongs to the technical field of the coal gas purification, concretely relates to horizontal coal gas deacidification device and dispose this horizontal coal gas deacidification device's coal gas dry process dust pelletizing system.
Background
At present, with the popularization of a blast furnace gas dry dedusting process, the corrosion phenomena of pipelines and related equipment of a newly-built blast furnace gas system reflected by metallurgical enterprises become more and more serious, and the phenomena are specifically shown as gas pipeline perforation, compensator pitting cracking, corrosion of parts such as gas valves, pressure reducing valve sets and the like, scaling and blockage of solid salts and the like. Studies have shown that the root cause of corrosion is H in the condensed water of gas+、Cl-The ions are severely out of standard. By adopting an acid-base neutralization mode, H in the condensed water of the coal gas can be effectively removed by spraying the alkali liquor into the coal gas+、Cl-Ions; however, the existing method mainly operates in a vertical gas cleaning tower mode, and has the problems of large occupied space of equipment, high engineering investment, difficult maintenance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a horizontal coal gas deacidification device and dispose this horizontal coal gas deacidification device's coal gas dry process dust pelletizing system can solve prior art's partial defect at least.
The utility model relates to a horizontal gas deacidification device, which comprises a horizontal deacidification tank, wherein a spraying structure is arranged in the deacidification tank, and an alkali liquor supply pipe for supplying alkali liquor to the spraying structure is arranged outside the deacidification tank; the deacidification tank is connected with a gas inlet pipe and a gas outlet pipe, one of the gas inlet pipe and the gas outlet pipe is connected with the top of the deacidification tank, and the other gas circulation pipe is connected with one end of the deacidification tank.
As an embodiment, a gas flow pipe connected to the top of the deacidification tank is arranged near the other end of the deacidification tank.
As an embodiment, the gas inlet pipe is connected to one end of the deacidification tank.
As one embodiment, the spraying structure comprises at least one group of top spraying units, and when a plurality of groups of top spraying units are arranged, the top spraying units are sequentially arranged along the gas circulation direction in the tank; the top spraying unit comprises a plurality of nozzles which are sequentially arranged at intervals along the circumferential direction of the tank body.
As one embodiment, the spraying direction of at least part of the nozzles is perpendicular to the gas flowing direction in the tank, or the spraying direction of at least part of the nozzles forms an included angle with the gas flowing direction in the tank and sprays towards the windward side.
As one embodiment, at least one airflow baffle is arranged at the top in the deacidification tank, and when a plurality of airflow baffles are arranged, the airflow baffles are sequentially arranged along the coal gas circulation direction in the tank; the airflow baffle plate extends along the circumferential direction of the tank body, and the plate surface of the airflow baffle plate is perpendicular to the gas flowing direction in the tank.
In one embodiment, the other end of the deacidification tank has an inclined portion, the inclined portion is positioned at the lower part of the deacidification tank, and the inclined portion inclines towards the inner side of the tank from top to bottom.
As an embodiment, a droplet capture unit is arranged in the gas outlet pipe.
As one embodiment, the bottom of the deacidification tank is connected with a lye discharge pipe.
The utility model discloses still relate to a coal gas dry process dust pelletizing system, including coal gas dust removal mechanism, still include as above horizontal coal gas deacidification device, the deacidification jar arrange in the low reaches of coal gas dust removal mechanism, the coal gas inlet tube with the export gas union coupling of coal gas dust removal mechanism.
The utility model discloses following beneficial effect has at least:
the utility model provides a horizontal coal gas deacidification device adopts horizontal deacidification jar as coal gas deacidification container, under the prerequisite of guaranteeing the deacidification effect to coal gas, can greatly reduce equipment height, optimizes engineering design, reduces the engineering investment to the operation of being convenient for is maintained. In the gas deacidification device, the gas flow channel is smoothly arranged, the gas pressure loss is low (less than 2kPa), and the treatment gas quantity can meet the actual production requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a horizontal gas deacidification device provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a cross-sectional view taken along B-B of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1-3, an embodiment of the present invention provides a horizontal gas deacidification apparatus, including a horizontal deacidification tank 1, a spraying structure is disposed in the deacidification tank 1, and an alkali liquor supply pipe 21 for supplying alkali liquor to the spraying structure is disposed outside the deacidification tank 1; the deacidification tank 1 is connected with a gas inlet pipe 11 and a gas outlet pipe 12, one of the gas inlet pipe 11 and the gas outlet pipe 12 is connected with the top of the deacidification tank 1, and the other gas flow pipe is connected with one end of the deacidification tank 1.
The deacidification tank 1 is preferably a cylindrical tank body having a regular shape such as a regular prism shape, and the axis of the deacidification tank 1 is parallel to the horizontal direction. When the gas inlet pipe 11 is arranged at the top of the deacidification tank 1, the gas outlet pipe 12 is arranged at one end part of the deacidification tank 1; when the gas inlet pipe 11 is provided at one end of the deacidification tank 1, the gas outlet pipe 12 is provided at the top of the deacidification tank 1. Further preferably, a gas flow pipe connected to the top of the deacidification tank 1 is arranged near the other end of the deacidification tank 1, so that the gas flows from one end of the deacidification tank 1 to the other end, and the retention time and the deacidification effect of the gas in the deacidification tank 1 are ensured.
In this embodiment, as shown in fig. 1, the gas inlet pipe 11 is connected to one end of the deacidification tank 1, and the gas outlet pipe 12 is connected to the top of the deacidification tank 1; the mode of side air inlet and top air outlet is adopted, the gas runs smoothly in the tank, the pressure loss is small, and the treatment gas quantity can meet the actual production requirement.
Further preferably, in the above scheme of side air intake, the gas inlet pipe 11 is coaxially connected with the deacidification tank 1, so as to improve the uniformity and smoothness of gas flowing in the deacidification tank 1.
Further, as shown in fig. 1, a droplet catching unit 121 is disposed in the gas outlet pipe 12. Obviously, when the gas outlet pipe 12 is arranged at the top of the deacidification tank 1, the liquid drop trapping unit 121 has a stronger trapping effect on liquid drops in the gas than when the gas flows horizontally, and the liquid drops can drop to the bottom of the tank under the action of self weight. In one embodiment, the liquid drop trapping unit 121 employs a corrugated structured packing with an orifice plate, which can efficiently trap liquid drops entrained in the deacidified gas. The liquid drops carried in the coal gas are efficiently removed through the liquid drop catching unit 121, and the requirement of downstream coal gas users on the heat value of the coal gas can be met.
In one embodiment, as shown in fig. 1 and 2, the spraying structure comprises at least one group of top spraying units 22, and the top spraying units 22 comprise a plurality of nozzles 221 which are sequentially arranged at intervals along the circumferential direction of the tank body; in this embodiment, preferably, a plurality of groups of top spraying units 22 are provided, and each of the top spraying units 22 is sequentially arranged along the gas circulation direction in the tank, so as to ensure the deacidification effect and efficiency of the gas. Further preferably, the nozzles 221 in each group of top spray units 22 are all mounted on the same distribution pipe; for the solution with a cylindrical tank, the distribution pipe is also preferably an arc pipe; the distribution pipe can be arranged in the tank and connected with the alkali liquor supply pipe 21 through the adapter pipe, the distribution pipe can also be arranged outside the tank and directly communicated with the alkali liquor supply pipe 21, and each nozzle 221 can be communicated with the distribution pipe through a spray branch pipe penetrating through the top of the tank body. The alkali liquor supply pipe 21 can be arranged on the tank top of the deacidification tank 1 so as to save the required supports for arranging pipelines and the like and facilitate the overhaul.
Wherein, each distribution pipe can work independently respectively, also can work in step. For the scheme that each distribution pipe works independently, the scheme can be realized by means of arranging a control valve and the like at the inlet of each distribution pipe, so that parameters such as the injection quantity and the injection pressure of each nozzle 221 can be set correspondingly according to the circulation stroke of the coal gas, on one hand, the deacidification effect of the coal gas is improved, and on the other hand, the medium consumption is saved, for example, the nozzles 221 can adopt relatively larger injection quantity and injection pressure as the coal gas inlet pipe 11 is closer; the control valve can be interlocked with the detected values of the parameters such as gas pressure, gas flow rate and temperature and the like in the corresponding area, and the alkali liquor injection parameters can be adjusted in real time. Similarly, for the scheme that all the distribution pipes work synchronously, a control valve can be arranged on the alkali liquor supply pipe 21, and the control valve is interlocked with the detected values of parameters such as coal gas pressure, coal gas flow rate and temperature in a coal gas inlet area, so that the alkali liquor injection parameters can be adjusted in real time.
Further preferably, the spraying direction of at least part of the nozzles 221 is perpendicular to the gas flowing direction in the tank, or the spraying direction of at least part of the nozzles 221 has an angle with the gas flowing direction in the tank and sprays towards the windward side. In the embodiment, the spraying direction of each nozzle 221 is perpendicular to the gas flowing direction in the tank, i.e. perpendicular to the axis of the deacidification tank 1, so that the required gas deacidification effect can be achieved, and the effective removal rate of acid components in the gas can reach more than 98% during deacidification; in one embodiment, as shown in fig. 2, the axis of each nozzle 221 intersects the axis of the tank, i.e. the nozzles 221 are arranged along the radial direction of the deacidification tank 1.
The horizontal type gas deacidification device provided by the embodiment adopts the horizontal type deacidification tank 1 as a gas deacidification container, can greatly reduce the equipment height on the premise of ensuring the deacidification effect on gas, optimizes the engineering design, reduces the engineering investment and is convenient to operate and maintain. In the gas deacidification device, the gas flow channel is smoothly arranged, the gas pressure loss is low (less than 2kPa), and the treatment gas quantity can meet the actual production requirement.
Further optimizing the horizontal gas deacidification device, as shown in fig. 2, at least one gas flow baffle 16 is arranged at the top of the tank 1 of the deacidification tank, and when a plurality of gas flow baffles 16 are arranged, the gas flow baffles 16 are sequentially arranged along the gas circulation direction in the tank; the airflow baffle 16 extends along the circumferential direction of the tank body, and the plate surface is vertical to the gas circulation direction in the tank. The airflow baffle 16 can effectively prevent the gas from escaping from the top of the tank, thereby improving the deacidification rate of the gas. Preferably, a plurality of airflow baffles 16 are provided to enhance the above-mentioned escape-preventing effect; in the above-described structure provided with the plurality of sets of top shower units 22, it is preferable that each airflow baffle 16 and each top shower unit 22 are arranged alternately in sequence, that is, one airflow baffle 16 is provided between each two adjacent sets of top shower units 22. The height and circumferential angle of the gas baffle 16 can be designed according to the spraying range of the adjacent top spraying unit 22 so as to wash all the gas as much as possible.
The deacidification medium sprayed by the top spray unit 22 falls to the bottom of the deacidification tank 1, so, correspondingly, as shown in fig. 1 and 2, the bottom of the deacidification tank 1 is connected with an alkali liquor discharge pipe 15, and the alkali liquor discharge pipe 15 is provided with a liquid discharge valve. Preferably, during the operation of the device, a certain height of alkali liquor is reserved at the bottom of the tank to prevent the gas from escaping from the tank bottom with lower medium concentration to influence the gas deacidification effect; accordingly, a liquid level meter can be arranged at the bottom of the tank, and the liquid level meter is controlled in an interlocking mode with the drain valve.
Further, as shown in fig. 1 and 3, the deacidification tank 1 can be fixedly arranged on the concrete foundation 3 through a support 13. One or more service manholes 14 may be provided at the lower portion of the tank body according to the size of the tank body of the deacidification tank 1 to facilitate the service of the equipment. In addition, at least one service manhole 14 can be arranged on the gas outlet pipe 12, and the service manhole 14 on the gas outlet pipe 12 is preferably arranged near (e.g. above) the droplet catching unit 121; can set up multilayer maintenance platform 4 outside deacidification jar 1 jar body to overhaul the device different regions.
In order to further optimize the horizontal gas deacidification device, as shown in fig. 1, the other end of the deacidification tank 1 is of a non-planar design and is provided with an inclined part (shown and not marked), the inclined part is positioned at the lower part of the deacidification tank 1, and the inclined part is inclined towards the inside of the tank from top to bottom. In one embodiment, as shown in fig. 1, the horizontal plane of the axis of the tank body is taken as a reference plane, the inclined part starts from the reference plane and extends downwards, and the end part of the tank body above the reference plane adopts a plane side plate. Based on the structure, the gas can be well guided, for example, when the gas outlet pipe 12 is arranged at the top of the tank body, the inclined part can extrude and collide the gas upwards to a certain extent, so that the gas is better guided to the gas outlet pipe 12, and the gas flow field in the tank is smoother.
Example two
The embodiment of the utility model provides a coal gas dry process dust pelletizing system, including coal gas dust removal mechanism, still wrap the horizontal coal gas deacidification device that above-mentioned embodiment a provided, deacidify jar 1 arrange in the low reaches of coal gas dust removal mechanism, coal gas inlet tube 11 with the export gas union coupling of coal gas dust removal mechanism.
The coal gas dust removal mechanism can adopt a conventional dry dust removal process system in the field, and the specific structure is not described herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A horizontal coal gas deacidification device is characterized in that: the device comprises a horizontal deacidification tank, wherein a spraying structure is arranged in the deacidification tank, and an alkali liquor supply pipe for supplying alkali liquor to the spraying structure is arranged outside the deacidification tank; the deacidification tank is connected with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected to the top of the deacidification tank, and the gas outlet pipe is connected to one end of the deacidification tank, or the gas outlet pipe is connected to the top of the deacidification tank, and the gas inlet pipe is connected to one end of the deacidification tank.
2. The horizontal gas deacidification apparatus according to claim 1, wherein: when the coal gas inlet pipe is connected to the top of the deacidification tank, the coal gas inlet pipe is arranged close to the other end of the deacidification tank; when the gas outlet pipe is connected to the top of the deacidification tank, the gas outlet pipe is arranged close to the other end of the deacidification tank.
3. The horizontal gas deacidification apparatus according to claim 1, wherein: the spraying structure comprises at least one group of top spraying units, and when a plurality of groups of top spraying units are arranged, the top spraying units are sequentially arranged along the gas circulation direction in the tank; the top spraying unit comprises a plurality of nozzles which are sequentially arranged at intervals along the circumferential direction of the tank body.
4. The horizontal gas deacidification device according to claim 3, wherein: the spraying direction of at least part of the nozzles is vertical to the gas circulation direction in the tank, or the spraying direction of at least part of the nozzles forms an included angle with the gas circulation direction in the tank and sprays towards the windward side.
5. The horizontal gas deacidification device according to claim 3, wherein: at least one airflow baffle is arranged at the top in the deacidification tank, and when a plurality of airflow baffles are arranged, the airflow baffles are sequentially arranged along the gas circulation direction in the tank; the airflow baffle plate extends along the circumferential direction of the tank body, and the plate surface of the airflow baffle plate is perpendicular to the gas flowing direction in the tank.
6. The horizontal gas deacidification apparatus according to claim 1, wherein: the other end of the deacidification tank is provided with an inclined part, the inclined part is positioned at the lower part of the deacidification tank, and the inclined part inclines towards the inside of the tank from top to bottom.
7. The horizontal gas deacidification apparatus according to claim 1, wherein: and a liquid drop catching unit is arranged in the gas outlet pipe.
8. The horizontal gas deacidification apparatus according to claim 1, wherein: the bottom of the deacidification tank is connected with an alkali liquor discharge pipe.
9. A coal gas dry dedusting system comprises a coal gas dedusting mechanism and is characterized in that: the horizontal gas deacidification device according to any one of claims 1 to 8, wherein the deacidification tank is arranged at the downstream of the gas dedusting mechanism, and the gas inlet pipe is connected with an outlet gas pipe of the gas dedusting mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997874.6U CN214167853U (en) | 2020-09-14 | 2020-09-14 | Horizontal gas deacidification device and gas dry-method dust removal system |
| PCT/CN2020/140767 WO2022052377A1 (en) | 2020-09-14 | 2020-12-29 | Horizontal coal gas deacidification device and a coal gas dust removal system by dry process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997874.6U CN214167853U (en) | 2020-09-14 | 2020-09-14 | Horizontal gas deacidification device and gas dry-method dust removal system |
Publications (1)
| Publication Number | Publication Date |
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| CN214167853U true CN214167853U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021997874.6U Active CN214167853U (en) | 2020-09-14 | 2020-09-14 | Horizontal gas deacidification device and gas dry-method dust removal system |
Country Status (2)
| Country | Link |
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| CN (1) | CN214167853U (en) |
| WO (1) | WO2022052377A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118879374B (en) * | 2024-10-08 | 2025-02-07 | 江苏天立方环保工程有限公司 | Blast furnace gas dry-process fine desulfurization device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5457471A (en) * | 1977-10-17 | 1979-05-09 | Toshio Tomii | Gas deodorizing method |
| CN201807278U (en) * | 2010-07-23 | 2011-04-27 | 江苏省环境科学研究院 | Multifunctional integrated mixed waste gas purifying device |
| CN103446863B (en) * | 2013-01-10 | 2015-10-28 | 番禺珠江钢管（连云港）有限公司 | A kind of partition type vapor liquid heat exchange and flue gas desulfur device and sulfur method |
| CN104084029A (en) * | 2014-06-06 | 2014-10-08 | 山西玉竹活性石灰制造有限公司 | A horizontal water film desulphurization deduster |
| CN104857799B (en) * | 2015-05-25 | 2017-04-19 | 广东科达洁能股份有限公司 | Sulfur and dust removal device |
| CN210699444U (en) * | 2019-06-19 | 2020-06-09 | 西安陕鼓动力股份有限公司 | Modularization blast furnace gas dechlorination device |
| CN210121423U (en) * | 2019-11-14 | 2020-03-03 | 佰利天控制设备（北京）有限公司 | Horizontal blast furnace gas dechlorination tower |
| CN111269736A (en) * | 2020-03-24 | 2020-06-12 | 安徽威达环保科技股份有限公司 | Method and device for hydrolytic desulfurization of blast furnace gas |
-
2020
- 2020-09-14 CN CN202021997874.6U patent/CN214167853U/en active Active
- 2020-12-29 WO PCT/CN2020/140767 patent/WO2022052377A1/en not_active Ceased
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| WO2022052377A1 (en) | 2022-03-17 |
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