CN101575528A - Process for coking by molding and matching coke residues - Google Patents
Process for coking by molding and matching coke residues Download PDFInfo
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- CN101575528A CN101575528A CNA2008100312385A CN200810031238A CN101575528A CN 101575528 A CN101575528 A CN 101575528A CN A2008100312385 A CNA2008100312385 A CN A2008100312385A CN 200810031238 A CN200810031238 A CN 200810031238A CN 101575528 A CN101575528 A CN 101575528A
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- coke
- coal
- coking
- tar refuse
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Abstract
The invention discloses a process for coking by molding and matching back coke residues, which is realized in such a way that industrial residues, i.e. the coke residues which are generated in production in a gas cleaning shop are matched with charging coal according to the mixture ratio of 8-18 percent and are pressed and molded by a molding machine after being sufficiently mixed and kneaded by a mixing machine. A pressed and molded briquette is transmitted to a charging coal transmission system by a belt conveyor and then transmitted to a coal tower for a coke oven to coke. The invention performs innocent treatment to the coke residues so as to match back for coking, thereby not only improving the utilization ratio of resources, but also avoiding environment pollution caused by the coke residues.
Description
Affiliated technical field
The present invention relates to coke-oven plant's technical field of industrial waste residue disposal, especially a kind of employing returns coke tar refuse and part shove charge coal mixing moulding to the technology of joining coking.
Background technology
In coking is produced, the gas purification workshop will produce the coke tar refuse of year coal consumption 0.4% in process of production, in production process in the past, the coke tar refuse that produces is general just as the industrial residue outward transport or bury, and the factory that also has recent years delivers to the coke-oven plant with this part waste residue and is equipped with the coal yard air storage between coal car or delivers to the coal cat head on the fortune ribbing formula transfer roller that is equipped with between coal car and use for coking by coke oven production adding under the liquid heavy-gravity state.
Coke tar refuse adopts above-mentioned treating method, and there are the following problems:
1, coke tar refuse is transported outward or is buried as industrial residue.Contain solid matters such as a large amount of coal dusts, coke powder in the coke tar refuse, remaining fluent meterial tar, ammoniacal liquor, these all are contaminate environment is difficult to degraded under state of nature materials.
2, coke tar refuse is added under liquid heavy-gravity state.Coke tar refuse also has very strong adhesion except having corrodibility, abrasiveness.Coke tar refuse has certain fluidity at a certain temperature, very easily sticks on the equipment, and along with the reduction of temperature, coke tar refuse just will be hardened gradually, even influences the ordinary production operation of coke-oven plant.
At present, the coke tar refuse that domestic coal chemical enterprise produces in process of production is main solid slag, does not all have the good treatment measure, is that a difficult problem that needs to be resolved hurrily is produced in coke-oven plant's coking.
Summary of the invention
In order to overcome coke tar refuse contaminate environment and the existing deficiency of utilizing technogenic influence to produce, the invention provides a kind of technology of coking by molding and matching coke residues, do not changing coke tar refuse character, state and do not influencing under the condition of coke quality, with coke tar refuse and shove charge coal mixing pressure ball neither adhering device also removed the corrodibility and the abrasiveness of coke tar refuse, thereby make coke-oven plant's industrial residue accomplish that zero release has reached the purpose of environmental protection.
The technical solution adopted for the present invention to solve the technical problems is: coke tar refuse and shove charge coal are cooperated by 8%～18% proportioning, enter the double-shaft spiral mixing machine then and stir and even mixed pinching, the coal charge that fully mixes after pinching enters the shape that shaper is pressed into spheroid or owner's requirement.The coal briquette of compression moulding is delivered to the coal tower with the shove charge coal and is used for coking by coke oven production.
Processing unit is made up of coal charge system, coke tar refuse add-on system, hot water thermal insulating system and automatic control system.The coal charge system forms by cutting the chute that connects between shove charge coal haulage system, shove charge coal storage tank, dosing feeding device, double-shaft spiral mixing machine, roller briquetting machine, coal briquette delivery system and each equipment.The coke tar refuse add-on system is made up of coke tar refuse storage tank, gate, coke tar refuse transferpump, pipeline.Coke tar refuse is added pump also can prevent that coke tar refuse from precipitating with the closed cycle of coke tar refuse storage tank except that adding the coke tar refuse in storage tank in coal charge.The hot water thermal insulating system is made up of hot water preparation storage tank, hot water pump, gate, pipeline.Automatic control system adopts the chain centralized Control of PLC.
Described coke tar refuse is to adopt hot water thermal insulating to 〉=65 ℃ of fluidized states.
Described double-shaft spiral mixing machine gets final product separate unit work, also can 2 mixed pinching of series connection thorough mixing.Mixing machine mainly is made up of motor, step-down gear, shaft coupling, gear pair, stir shaft, casing and base etc.Electric motor drives 2 stir shafts by step-down gear, shaft coupling, gear pair and makes relative rotary motion, drives mixing of materials, mixes and pinch and advance.Positive and negative screw-blade is installed on every stir shaft, make material produce complicated spatially spiral operation, make material that rotation promptly be arranged, just having again changes, axially reflux in addition and advance, various materials residence time in mixing machine is longer, can access fully to mix to pinch, mixing effect is good, and uniformity coefficient can reach 90%.
Described roller briquetting machine mainly is made up of feed part, driving part, moulding section, hydraulic part.The material that shaper uses is through mixing the coke tar refuse after pinching and the mixture of coal, have certain bulk specific gravity, because the diameter of format roll is bigger, bigger gripping angle is arranged, evenly entering between two rollers so can guarantee material.In order to guarantee that shaper operates steadily, steady load should strict control feeding coal.The main transmission of shaper is: electric motor → vee-belt → cylindrical gear reducer → exposed gear → format roll.The core of shaper is a format roll, and requiring format roll is one-piece construction, adopts high-abrasive material to forge and forms, and requires the format roll wear resisting property good, long service life, and it is reliable to operate steadily.The whole processing of format roll, wearing and tearing back integral replacing.
Hydraulic efficiency system plays the function that guarantees forming pressure, and native system must be reliable, easy to maintenance.Require to be provided with on hydraulic circuit energy storage in addition, protection hydraulic circuit when retreating with assurance system pressure and piston, hydraulic power unit adopt DBD series electric oil pump, and this pump has a style of one's own together with fuel tank, tensimeter and various application valve.The groundwork principle of this pump is to be rotated by the driven by motor pump, hydraulic efficiency oil sucks through fuel charging valve, discharge through draining valve, pool together from oil piping system and enter oil cylinder, provide a stable thrust to format roll, when feeding coal is excessive, two format roll spacings increase, oil cylinder piston is subjected to counterpressure and then moves, and causes system pressure to increase, and pressure oil returns energy storage and guaranteed the shaper safe operation.
The invention has the beneficial effects as follows:
1, the present invention has avoided coke tar refuse to atmospheric pollution coke tar refuse transportation under the state of sealing, interpolation.
2, coking by molding and matching coke residues technology of the present invention has avoided coke tar refuse to producing the adhesion and the corrosion of main line equipment, guarantees the operation of the ordinary production between coal car fully.
3, coking by molding and matching coke residues technology of the present invention can be moved continuously, but also intermitten service is opened, stopped conveniently.
4, the present invention adopts the chain centralized Control of PLC, has alleviated working strength of workers, has improved the automatization level of device.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is a process flow sheet of the present invention.
1. shove charge coal haulage system 2. cut shove charge coal haulage system, 3. shove charge coal storage tank among the figure, 4. dosing feeding device, 5. double-shaft spiral mixing machine, 6. coke tar refuse transport pipe, 7. coke tar refuse storage tank, 8. hot water preparation storage tank, 9. hot water pump, 10. hot water thermal insulating pipeline, 11. coke tar refuse transferpump, 12. roller briquetting machine, 13, the coal briquette delivery system.
Embodiment
In the accompanying drawings, from shove charge coal haulage system (1) carry the way by cut granularity that shove charge coal haulage system (2) cuts for≤3mm level coal charge account for 〉=80% shove charge coal enters shove charge coal storage tank (3) and stores, entering double-shaft spiral mixing machine (5) by notch dosing feeding device (4) with the coke tar refuse of coke tar refuse transport pipe (6) quantitative 8%～18% evenly stirs, mix and pinch, by roller briquetting machine (12) compression moulding, coal briquette returns shove charge coal haulage system (1) by coal briquette delivery system (13), be transported to the coal tower synchronously with the shove charge coal, use for coking by coke oven production.
The coke tar refuse add-on system is made up of coke tar refuse storage tank (7), coke tar refuse transferpump (11), coke tar refuse transport pipe (6), hot water preparation storage tank (8), hot water pump (9) and hot water thermal insulating pipeline (10).Transporting the coke tar refuse of coming by the storage tank of tank car or band insulation construction stores in coke tar refuse storage tank (7), is that 8%～18% coke tar refuse is delivered to double-shaft spiral mixing machine (5) through notch electric slurry valve and coke tar refuse transferpump (11) with proportioning, and coke tar refuse transport pipe (6) adopts wear-resistant material.
Coke tar refuse storage tank (7) is the hollow jacket structure, the middle hot water that feeds, and the outside is provided with thermal insulation layer, and the groove top is provided with the port lid that Electrohydraulic push rod is opened.Coke tar refuse transport pipe (6) is provided with hot water thermal insulating.Insulation, is stored in the hot water preparation storage tank (8) by steam production with hot water, delivers to all insulation positions by hot water pump (9).
Claims (10)
1. the technology of a coking by molding and matching coke residues, the coke tar refuse that produces in the gas purification Workshop Production process is transported in the coke tar refuse storage tank by tank car or the trough that has an insulation jacket stores, be stored in the coke tar refuse storage tank coke tar refuse with cut the coal charge that is stored in the shove charge coal storage tank proportioning from shove charge coal haulage system and cooperate by 8%～18%, entering mixing machine then evenly stirs and mixes and pinch, fully the coal charge that mixes after pinching enters shaper compression moulding, return shove charge coal haulage system to the coal tower by the coal briquette delivery system, use for coking by coke oven production.
2. the technology of coking by molding and matching coke residues according to claim 1, it is characterized in that: processing unit is made up of coal charge system, coke tar refuse add-on system, hot water thermal insulating system and automatic control system.
3. the technology of coking by molding and matching coke residues according to claim 1, it is characterized in that: the coal charge system forms by cutting the chute that connects between shove charge coal haulage system, shove charge coal storage tank, dosing feeding device, double-shaft spiral mixing machine, roller briquetting machine, coal briquette delivery system and each equipment.
4. the technology of coking by molding and matching coke residues according to claim 1, it is characterized in that: the coke tar refuse add-on system is made up of coke tar refuse storage tank, gate, coke tar refuse transferpump, pipeline.
5. the technology of coking by molding and matching coke residues according to claim 1 is characterized in that: coke tar refuse is added pump except that adding the coke tar refuse also and the closed cycle of coke tar refuse storage tank in coal charge.
6. the technology of coking by molding and matching coke residues according to claim 1, it is characterized in that: the hot water thermal insulating system is made up of hot water preparation storage tank, hot water pump, gate, pipeline.
7. the technology of coking by molding and matching coke residues according to claim 1 is characterized in that: the chain centralized Control of automatic control system employing PLC.
8. the technology of coking by molding and matching coke residues according to claim 1 is characterized in that: to be the granularity that cuts from shove charge coal haulage system account for 〉=80% shove charge coal for≤3mm level coal charge used coal charge.
9. the technology of coking by molding and matching coke residues according to claim 1 is characterized in that: but both the separate unit configuration also can two series connection for the double-shaft spiral mixing machine, carried out secondary stirring and mixed and pinch.
10. the technology of coking by molding and matching coke residues according to claim 1 is characterized in that: after the coke tar refuse compression moulding, coal briquette both can with shove charge coal synchronous transport to the coal tower, also can be delivered to the coal tower separately and use for coking by coke oven production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100312385A CN101575528A (en) | 2008-05-08 | 2008-05-08 | Process for coking by molding and matching coke residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100312385A CN101575528A (en) | 2008-05-08 | 2008-05-08 | Process for coking by molding and matching coke residues |
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| Publication Number | Publication Date |
|---|---|
| CN101575528A true CN101575528A (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100312385A Pending CN101575528A (en) | 2008-05-08 | 2008-05-08 | Process for coking by molding and matching coke residues |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004534A (en) * | 2014-05-30 | 2014-08-27 | 济钢集团有限公司 | System for processing tar residues by using waste heat of raw coke oven gas |
| CN110344303A (en) * | 2018-04-02 | 2019-10-18 | 利越集团有限公司 | Petroleum Asphalt Mixture for Road Lower device and method |
-
2008
- 2008-05-08 CN CNA2008100312385A patent/CN101575528A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 周亚平: "焦油渣作为炼焦添加剂的应用", 《煤化工》 * |
| 张殿印等: "煤气发生炉焦油的处理和利用", 《环境工程》 * |
| 王志军等: "配型煤炼焦生产工艺研究与实践", 《冶金标准化与质量》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004534A (en) * | 2014-05-30 | 2014-08-27 | 济钢集团有限公司 | System for processing tar residues by using waste heat of raw coke oven gas |
| CN110344303A (en) * | 2018-04-02 | 2019-10-18 | 利越集团有限公司 | Petroleum Asphalt Mixture for Road Lower device and method |
| CN110344303B (en) * | 2018-04-02 | 2021-02-09 | 利越集团有限公司 | Road petroleum asphalt mixture device and method |
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Application publication date: 20091111 |