CN113895863A - Device and method for quickly assembling and disassembling active coke - Google Patents
Device and method for quickly assembling and disassembling active coke Download PDFInfo
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- CN113895863A CN113895863A CN202111186080.0A CN202111186080A CN113895863A CN 113895863 A CN113895863 A CN 113895863A CN 202111186080 A CN202111186080 A CN 202111186080A CN 113895863 A CN113895863 A CN 113895863A
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- coke
- belt conveyor
- unloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses a device and a method for quickly loading and unloading active coke, wherein the device for quickly loading and unloading the active coke comprises a quick coke unloading device for unloading the active coke from an adsorption tower to an active coke storage place and a quick coke loading device for loading the active coke from the active coke storage place to the adsorption tower, the quick coke unloading device comprises the adsorption tower, the bottom of the adsorption tower is communicated with a by-pass pipeline, the end part of the by-pass pipeline is provided with a gate valve for controlling coke unloading opening and closing and coke unloading speed, and a belt conveyor is arranged below the end part of the by-pass pipeline; the quick coke-charging device comprises a large-inclination-angle belt conveyor, an iron remover is sequentially arranged above the bottom end of the large-inclination-angle belt conveyor, and the end part of the large-inclination-angle belt conveyor is communicated with the adsorption tower. The invention has the advantages of convenient operation, fast loading and unloading speed, long service life and low maintenance cost.
Description
Technical Field
The invention relates to the field of integrated processes of desulfurization and denitrification of active coke, in particular to a device and a method for quickly loading and unloading active coke.
Background
In the existing integrated process of desulfurization and denitrification of active coke, coke supplement is performed in daily production, and large-scale and neutral coke loading or unloading is required under other conditions, such as before and after overhaul or treatment of over-temperature accidents during primary installation of equipment. The loading and unloading time of the active coke directly influences the maintenance task and the accident handling progress.
The conventional active coke discharging is that the active coke is firstly transported into a storage bin through a chain bucket machine, then discharged onto an automobile from the storage bin, and finally transported to a storage place through steam, and about 10 tons of active coke are discharged per hour.
And coke loading is carried to a coke supplementing bucket lifting position through steam, then is conveyed to a coke supplementing bin through a coke supplementing bucket lifting machine, and finally is conveyed to an adsorption tower through a chain bucket machine, wherein the coke loading is about 5 tons every hour.
In such large-scale and centralized coke loading and unloading, the loading and unloading speed of the existing process is extremely slow, and the equipment maintenance progress is severely limited. Under the situation of the shortage of the current sintering ore stocks, the current coke loading and unloading process cannot meet the current situation.
Disclosure of Invention
The invention aims to provide a device and a method for quickly assembling and disassembling active coke, which have the advantages of convenient operation, high assembling and disassembling speed, long service life and low maintenance cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for quickly loading and unloading active coke comprises a quick coke unloading device for unloading the active coke from an adsorption tower to an active coke storage place and a quick coke loading device for loading the active coke from the active coke storage place to the adsorption tower, wherein the quick coke unloading device comprises the adsorption tower, the bottom of the adsorption tower is communicated with a bypass pipeline, the end part of the bypass pipeline is provided with a gate valve for controlling coke unloading opening and closing and coke unloading speed, and a belt conveyor is arranged below the end part of the bypass pipeline; the quick coke-charging device comprises a large-inclination-angle belt conveyor, an iron remover is sequentially arranged above the bottom end of the large-inclination-angle belt conveyor, and the end part of the large-inclination-angle belt conveyor is communicated with the adsorption tower.
The technical scheme of the invention is further improved as follows: the diameter range of the bypass pipeline is 150-250 mm.
The technical scheme of the invention is further improved as follows: the width range of the belt conveyor is 800-1000 mm.
The technical scheme of the invention is further improved as follows: the forklift conveys the active coke from the active coke storage place to the receiving hopper.
The technical scheme of the invention is further improved as follows: the diameter range of the discharge pipe of the material receiving hopper is 290 mm and 680 mm.
The technical scheme of the invention is further improved as follows: a method for rapidly loading and unloading active coke comprises the following steps:
s1, opening a gate valve, adjusting the opening degree of the gate valve, and unloading the active coke from the adsorption tower to a belt conveyor through a bypass pipeline;
s2, conveying the active coke to an active coke storage place by a belt conveyor;
s3, the forklift delivers the active coke to a receiving hopper from the active coke storage place;
s4, operating the large-inclination-angle belt conveyor, and removing iron in the active coke by using an iron remover;
and S5, conveying the qualified active coke into the adsorption tower by a large-inclination-angle belt conveyor.
The technical scheme of the invention is further improved as follows: the opening range of the gate valve in the step S1 is 0-100%.
The technical scheme of the invention is further improved as follows: and in the step S2, the running speed range of the belt conveyor is 2 m/S.
The technical scheme of the invention is further improved as follows: the flow speed range of the receiving hopper in the step S3 is 40t/h-70 t/h.
The technical scheme of the invention is further improved as follows: the operation speed range of the large-inclination-angle belt conveyor in the step S4 is 40t/h-70 t/h.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. the coke discharging speed is controlled by controlling the diameter of the bypass pipeline, the opening degree of the inserting plate and the discharging flow rate, the coke discharging speed is about 30 tons at most in each hour, which is 3 times of the original coke discharging speed, and the coke discharging time is shortened to 33 percent of the original coke discharging time; the coke charging speed is controlled by controlling the diameter of the charging pipe of the material receiving funnel and the charging flow rate, coke charging is about 70 tons at most per hour, the coke charging time is 14 times of the original coke charging time, the original 6 percent of coke charging time is shortened, the equipment maintenance time is shortened, and the equipment operation rate is improved.
2. The process can be operated in a closed loop mode, the secondary transportation cost is reduced, the labor intensity of personnel is reduced, the equipment is put into once, the reusability is high, the cost is low, a belt with a large inclination angle can be directly conveyed to the top of the tower, the whole equipment is compact, and the occupied space is small;
3. the invention changes the original process for removing iron in the active coke after operation, and removes the iron in advance by the process, thereby avoiding the environmental protection and equipment hidden troubles such as dust exceeding, adsorption tower over-temperature, discharger jamming and the like in later debugging and operation.
Drawings
FIG. 1 is a diagram of the overall process of the present invention for rapid loading and unloading of activated coke;
FIG. 2 is a diagram of a process for implementing the quick coke discharge apparatus of the present invention;
FIG. 3 is a diagram of a process for implementing the rapid coke charging apparatus of the present invention;
FIG. 4 is a view showing a target for quick coke discharge in example 1 of the present invention;
FIG. 5 is a view of a target for rapid coke charging in example 1 of the present invention;
the device comprises an adsorption tower 1, a bypass pipeline 2, a gate valve 3, a belt conveyor 4, an active coke storage area 5, a large-inclination-angle belt conveyor 6, an iron remover 7, an iron remover 8 and a forklift.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1 to 3, a device for quickly loading and unloading active coke comprises a quick coke unloading device for unloading the active coke from an adsorption tower 1 to an active coke storage area 5 and a quick coke loading device for loading the active coke from the active coke storage area 5 to the adsorption tower 1, wherein the quick coke unloading device comprises the adsorption tower 1, the bottom of the adsorption tower 1 is communicated with a bypass pipeline 2, the diameter range of the bypass pipeline 2 is 150-; the quick coke-loading device comprises a large-inclination-angle belt conveyor 6, an iron remover 7 is sequentially arranged above the bottom end of the large-inclination-angle belt conveyor 6, a forklift 8 sends active coke from an active coke storage place 5 to a material receiving hopper, and the diameter range of a discharging pipe of the material receiving hopper is 290-680 mm. The end part of the large-inclination-angle belt conveyor 6 is communicated with the adsorption tower 1.
A method for rapidly loading and unloading active coke comprises the following steps:
s1, opening a gate valve, adjusting the opening of the gate valve, wherein the opening range of the gate valve 3 is 0-100%, and discharging the active coke from the adsorption tower 1 to the belt conveyor 4 through the bypass pipeline 2;
s2, conveying the active coke to an active coke storage place 5 by a belt conveyor 4, wherein the running speed range of the belt conveyor 4 is 2 m/S;
s3, the forklift 8 sends the active coke from the active coke storage area 5 to a receiving hopper of the vibrating screen 7 and then falls to the bottom end of the large-inclination-angle belt conveyor 6;
s4, operating the large-inclination-angle belt conveyor 6, wherein the operating speed range of the large-inclination-angle belt conveyor 6 is 40t/h-70t/h, and removing iron in the active coke by using an iron remover 7;
s5, sending qualified active coke into the adsorption tower 1 by a large-inclination-angle belt conveyor 6.
Example 1
As shown in fig. 4, in order to achieve the coke discharging target of 30 tons/h, the diameter of the bypass pipeline is set to be 250mm, the opening of the gate valve is set to be 100%, the width of the belt conveyor is 1000mm, the running speed of the belt conveyor is 2m/s, the blanking flow rate is 0.22m/s, and the mass coefficient is 0.76, the gate valve 3 is opened, the active coke is discharged from the adsorption tower 1 to the belt conveyor 4 through the bypass pipeline 2, and the belt conveyor 4 conveys the active coke to an active coke storage place 5; the coke discharge amount can be obtained by calculation at 30 tons/h, and the specific calculation process is as follows:
the cross section area of the bypass pipeline, the opening degree of the inserting plate valve, the blanking flow rate and the mass coefficient are equal to the coke discharging amount,
（0.25÷2）²m*π*100%*0.22m/s*3600*0.76≈30t/h，
the coke discharging speed is controlled by controlling the diameter of the bypass pipeline, the opening degree of the inserting plate, the width of the belt conveyor and the running speed of the belt conveyor, the coke discharging speed is about 30 tons per hour, which is 3 times of the original coke discharging speed, the coke discharging time is shortened to 33 percent of the original coke discharging time, the overhaul time of the equipment is shortened, and the operation rate of the equipment is improved.
As shown in fig. 5, in order to achieve a target coke charging of 70 tons/h, the operation speed of the large-inclination-angle belt conveyor 6 is set to 70t/h, the blanking flow rate is 0.22m/s, the mass coefficient is 0.76, the forklift 8 sends the active coke from the active coke storage area 5 to the receiving hopper, then the active coke falls to the bottom end of the large-inclination-angle belt conveyor 6, the large-inclination-angle belt conveyor 6 operates, the iron remover 7 removes the iron in the active coke, and the large-inclination-angle belt conveyor 6 sends qualified active coke to the adsorption tower 1. The coke loading can be obtained by calculation at 45 tons/h, and the specific calculation process is as follows:
the cross section area of the feeding pipe of the receiving hopper and the feeding flow rate and the mass coefficient are equal to the coke charging amount,
（0.68÷2）²m*π*0.22m/s*3600*0.76≈70t/h，
according to the invention, the coke charging speed is controlled by controlling the diameter of the discharging pipe of the material receiving funnel and the discharging flow rate, the coke charging time is shortened to 6% of the original coke charging time, the original 14 times of coke charging time is achieved, the equipment maintenance time is shortened, and the equipment operation rate is improved.
The process can be operated in a closed loop mode, the secondary transportation cost is reduced, the labor intensity of personnel is reduced, the equipment is disposable, the reusability is high, the cost is low, the belt with a large inclination angle can be directly conveyed to the top of the tower, the whole equipment is compact, and the occupied space is small.
The invention changes the original ironware removing process after operation, removes the ironware in advance through the process, and can avoid environmental protection and equipment hidden troubles such as dust exceeding standard, adsorption tower overtemperature, tripper clamping stop and the like in later debugging and operation.
Claims (9)
1. The utility model provides a fast loading and unloading active burnt device which characterized in that: the device comprises a quick coke discharging device for discharging active coke from an adsorption tower (1) to an active coke storage place (5) and a quick coke loading device for loading the active coke from the active coke storage place (5) to the adsorption tower (1), wherein the quick coke discharging device comprises the adsorption tower (1), the bottom of the adsorption tower (1) is communicated with a bypass pipeline (2), the end part of the bypass pipeline (2) is provided with a gate valve (3) for controlling coke discharging opening and closing and coke discharging speed, and a belt conveyor (4) is arranged below the end part of the bypass pipeline (2); the quick coke-charging device comprises a large-inclination-angle belt conveyor (6), an iron remover (7) is sequentially arranged above the bottom end of the large-inclination-angle belt conveyor (6), and the end part of the large-inclination-angle belt conveyor (6) is communicated with the adsorption tower (1).
2. The apparatus for rapidly loading and unloading activated coke according to claim 1, wherein: the diameter of the bypass pipeline (2) is in the range of 150 mm and 250 mm.
3. The apparatus for rapidly loading and unloading activated coke according to claim 1, wherein: the width range of the belt conveyor (4) is 800-1000 mm.
4. The apparatus for rapidly loading and unloading activated coke according to claim 1, wherein: the forklift (8) sends the active coke from the active coke storage area (5) to the receiving hopper.
5. The apparatus for rapidly assembling and disassembling activated coke according to claim 4, wherein: the diameter range of the discharge pipe of the material receiving hopper is 290 mm and 680 mm.
6. A method for rapidly loading and unloading active coke is characterized in that: the method comprises the following steps:
s1, opening the gate valve (3), adjusting the opening of the gate valve (3), and unloading the active coke from the adsorption tower (1) to the belt conveyor (4) through the bypass pipeline (2);
s2, conveying the active coke to an active coke storage place (5) by a belt conveyor (4);
s3, the forklift (8) sends the active coke from the active coke storage place (5) to a receiving hopper;
s4, operating the large-inclination-angle belt conveyor (6), and removing iron in the active coke by the iron remover (7);
s5, conveying the qualified active coke into the adsorption tower (1) by a large-inclination-angle belt conveyor (6).
7. The method for rapidly loading and unloading the activated coke according to claim 6, wherein: the opening range of the gate valve (3) in the step S1 is 0-100%.
8. The method for rapidly loading and unloading the activated coke according to claim 6, wherein: and in the step S2, the running speed range of the belt conveyor (4) is 2 m/S.
9. The method for rapidly loading and unloading the activated coke according to claim 6, wherein: the operation speed range of the large-inclination-angle belt conveyor (6) in the step S4 is 40t/h-70 t/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111186080.0A CN113895863A (en) | 2021-10-12 | 2021-10-12 | Device and method for quickly assembling and disassembling active coke |
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| CN202111186080.0A CN113895863A (en) | 2021-10-12 | 2021-10-12 | Device and method for quickly assembling and disassembling active coke |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453538A (en) * | 2013-08-06 | 2013-12-18 | 中国华能集团清洁能源技术研究院有限公司 | Ultra-low emission circulating fluidized bed boiler with three stages of desulfurization systems |
| CN205652854U (en) * | 2016-05-27 | 2016-10-19 | 中国华电科工集团有限公司 | Transfer device of fly ash |
| CN108238454A (en) * | 2018-01-31 | 2018-07-03 | 广西路桥工程集团有限公司 | Mixing plant raw material cabin automatic feed system |
| CN109368290A (en) * | 2018-11-08 | 2019-02-22 | 中交二公局第三工程有限公司 | A kind of blanking system constructed for beans gravel pack in the tunnel TBM |
| CN208666584U (en) * | 2018-08-28 | 2019-03-29 | 河南省德耀节能科技股份有限公司 | Material-transporting system |
| CN209080971U (en) * | 2018-09-25 | 2019-07-09 | 浙江传化天松新材料有限公司 | A kind of gas, which is unloaded, conveys the powder easing gear combined with pipe chain |
| CN209758540U (en) * | 2019-03-26 | 2019-12-10 | 江阴市三良橡塑新材料有限公司 | A automatic conveyor for powder batching |
| CN210645755U (en) * | 2019-09-16 | 2020-06-02 | 上海克硫环保科技股份有限公司 | Quick row of active burnt material structure and active burnt discharge system |
| CN212440613U (en) * | 2020-07-07 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | New burnt supplementary system of active burnt gas cleaning technology |
| CN213737272U (en) * | 2020-11-12 | 2021-07-20 | 王力 | Covering material automatic control device |
-
2021
- 2021-10-12 CN CN202111186080.0A patent/CN113895863A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453538A (en) * | 2013-08-06 | 2013-12-18 | 中国华能集团清洁能源技术研究院有限公司 | Ultra-low emission circulating fluidized bed boiler with three stages of desulfurization systems |
| CN205652854U (en) * | 2016-05-27 | 2016-10-19 | 中国华电科工集团有限公司 | Transfer device of fly ash |
| CN108238454A (en) * | 2018-01-31 | 2018-07-03 | 广西路桥工程集团有限公司 | Mixing plant raw material cabin automatic feed system |
| CN208666584U (en) * | 2018-08-28 | 2019-03-29 | 河南省德耀节能科技股份有限公司 | Material-transporting system |
| CN209080971U (en) * | 2018-09-25 | 2019-07-09 | 浙江传化天松新材料有限公司 | A kind of gas, which is unloaded, conveys the powder easing gear combined with pipe chain |
| CN109368290A (en) * | 2018-11-08 | 2019-02-22 | 中交二公局第三工程有限公司 | A kind of blanking system constructed for beans gravel pack in the tunnel TBM |
| CN209758540U (en) * | 2019-03-26 | 2019-12-10 | 江阴市三良橡塑新材料有限公司 | A automatic conveyor for powder batching |
| CN210645755U (en) * | 2019-09-16 | 2020-06-02 | 上海克硫环保科技股份有限公司 | Quick row of active burnt material structure and active burnt discharge system |
| CN212440613U (en) * | 2020-07-07 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | New burnt supplementary system of active burnt gas cleaning technology |
| CN213737272U (en) * | 2020-11-12 | 2021-07-20 | 王力 | Covering material automatic control device |
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