阅读说明：本技术 一种焦炉炭化室石墨生长过快的处理方法 (Treatment method for too fast graphite growth of coke oven carbonization chamber ) 是由 付利俊 白晓光 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种焦炉炭化室石墨生长过快的处理方法,适用焦化企业控制焦炉石墨生长过快,保证焦炉正常稳定生产,延长焦炉使用寿命,经济效益明显,应用前景广阔。(The invention discloses a processing method for the excessive growth of graphite in a coke oven carbonization chamber, which is suitable for controlling the excessive growth of the graphite in the coke oven by coking enterprises, ensures the normal and stable production of the coke oven, prolongs the service life of the coke oven, and has obvious economic benefit and wide application prospect.)

1. A processing method for too fast graphite growth of a coke oven carbonization chamber is characterized by comprising the following steps: the method comprises the following steps:

s1, adopting reasonable coal blending ratio

On the premise of ensuring the quality of the coal, the coal blending ratio is further controlled, and the following quality parameters of the blended coal are maintained: the stability of the volatile components, the G value, the X value and the Y value effectively controls the growth speed of the graphite from the source;

s2, establishing a reasonable graphite cleaning system for the carbonization chamber

S2.1: the coke oven is cleaned manually, operators often carefully observe the growth conditions of graphite at regional coal charging ports, ascending pipes and bridge pipes, effectively master the distribution conditions and growth speeds of graphite of various oven numbers, and timely remove the graphite at coal charging holes of the coking chambers and around the bridge pipes and the ascending pipes by using steel rods according to regions every week;

s2.2: removing graphite in the coking chamber by using a machine, and selecting two machines of scraping by a scraper and blowing by an air pipe to remove the graphite in the coking chamber according to the characteristics of the furnace body of the current coke oven;

s2.3: the following matters need to be paid attention to in the graphite treatment process of the carbonization chamber, firstly, in the graphite treatment process, a manager needs to go to the site to command according to the production condition; secondly, the operator should stand at the windward part to prevent the burning of the fleeing flame; thirdly, timely clearing of the graphite is achieved; fourthly, strictly prohibiting the empty burning furnace from removing the graphite;

s2.4: preventing graphite in the carbonization chamber from bonding;

s3, controlling the heating system of the coke oven

S3.1: the relative stability of the coking time is kept, the frequent change of the coking time is reduced, and the graphite generation speed is slowed down;

s3.2: controlling the temperature of the furnace top space, wherein the temperature of the furnace top space is controlled to be 800-850 ℃;

s4, enhancing production operation

The coal charging operation needs to be full, solid, even and flat, so that the phenomena of hole blockage and corner shortage are effectively avoided; the coke pushing operation is strictly required according to the operation standard, so that the vibration of a coke pushing rod is reduced;

s5, controlling the pressure of the gas collecting pipe, the pressure of ammonia water and the suction force of the blower

The coke oven keeps smooth communication with a recovery system, and keeps ammonia clean, the pressure of high-low pressure ammonia and the suction of a blower stable; arranging a post for inspection, and finding blockage to process in time; the pressure control system of the gas collecting pipe is optimized, and the problems of high temperature and overlarge pressure of the gas collecting pipe are effectively prevented.

2. The method for processing graphite overgrowth in the carbonization chamber of the coke oven as claimed in claim 1, wherein: in the step S2.4, high-temperature anti-sticking glaze is coated on the surface of the furnace wall and the root part of the ascending tube so as to effectively prevent the adhesion of graphite.

3. The method for processing graphite overgrowth in the carbonization chamber of the coke oven as claimed in claim 1, wherein: the volatile component is controlled below 27.5%, the G value is greater than 75, the X value is less than 40, and the Y value is greater than 15.

Technical Field

The invention relates to the technical field of coal chemical industry, in particular to a processing method for too fast graphite growth of a coke oven carbonization chamber.

Background

The coke oven carbonization chamber is a device for isolating coking coal from air and performing dry distillation, is surrounded by oven walls at two sides, an oven top, an oven bottom and oven doors at two sides, and is mainly used for smelting the coking coal into coke. The graphite in the carbonization chamber is mainly derived from free carbon separated out by secondary thermal cracking of hydrocarbons in the coal cake, the production of the graphite is influenced by the temperature and the retention time of gas-phase substances such as raw gas and the like capable of separating out the free carbon in the hearth, the retention time is too long, the separation amount of the free carbon is increased, and the generation of the graphite is promoted. If the graphite growth speed of the carbonization chamber is too fast, the furnace top space and the crude gas guiding space of the ascending pipe are easily reduced, the crude gas is difficult to guide, the temperature of the bridge pipe and the gas collecting pipe is too high, the coke pushing current is increased, the problem that coke pushing is difficult to realize in serious conditions is caused, the furnace wall of the carbonization chamber is easily damaged, the service life of the coke oven is shortened, and meanwhile, the workload and the labor intensity of post workers are greatly increased. Therefore, the method controls the over-fast growth of the graphite of the coke oven, timely makes corresponding measures for controlling the growth of the graphite, and has very important guiding significance for ensuring the normal and stable production of the coke oven, prolonging the service life of the coke oven and the like.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a method for treating graphite in a coke oven carbonization chamber from excessively fast growing.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention relates to a processing method for too fast graphite growth of a coke oven carbonization chamber, which comprises the following steps:

s1, adopting reasonable coal blending ratio

On the premise of ensuring the quality of the coal, the coal blending ratio is further controlled, and the volatile component and G of the blended coal are kept

The stability of quality parameters such as value, X value, Y value and the like (the volatile component is controlled to be below 27.5 percent, the G value is greater than 75, the X value is less than 40, and the Y value is greater than 15) effectively controls the growth speed of the graphite from the source.

S2, establishing a reasonable graphite cleaning system for the carbonization chamber

S2.1: the coke oven is cleaned manually, operators often carefully observe the growth conditions of graphite at regional coal charging ports, ascending pipes and bridge pipes, effectively master the distribution conditions and growth speeds of graphite of various oven numbers, and timely remove the graphite at coal charging holes of the coking chambers and around the bridge pipes and the ascending pipes by using steel rods according to regions every week;

s2.2: removing graphite in the coking chamber by using a machine, and selecting two machines of scraping by a scraper and blowing by an air pipe to remove the graphite in the coking chamber according to the characteristics of the furnace body of the current coke oven;

s2.3: the following matters need to be paid attention to in the graphite treatment process of the carbonization chamber, firstly, in the graphite treatment process, a manager needs to go to the site to command according to the production condition; secondly, the operator should stand at the windward part to prevent the burning of the fleeing flame; thirdly, timely clearing of the graphite is achieved; fourthly, strictly prohibiting the empty burning furnace from removing the graphite;

s2.4: the graphite of the carbonization chamber is prevented from being bonded, and the high-temperature anti-sticking glaze is coated on the surface of the furnace wall and the root of the ascending tube, so that the bonding of the graphite can be effectively prevented.

S3, controlling the heating system of the coke oven

S3.1: the relative stability of the coking time is kept, the frequent change of the coking time is reduced, and the graphite generation speed is slowed down;

s3.2: controlling the temperature of the furnace top space, wherein the temperature of the furnace top space is controlled to be 800-850 ℃, and a temperature regulator controls the temperature of the furnace top space by adjusting and controlling parameters such as an excess air coefficient, the temperature of a furnace wall, the central temperature of a coke cake, the suction force at the top of a regenerator and the like;

s4, enhancing production operation

The coal charging operation needs to realize full filling, solid filling, even filling and flat filling, and effectively avoids the phenomena of hole blockage, corner shortage and the like; the coke pushing operation is strictly required according to the operation standard, and the vibration of a coke pushing rod is reduced as much as possible; the problems of uneven coal breakage, easy coal blockage due to flat coal, inclination of a coke pushing rod, large coke pushing current and the like are quickly solved;

s5, controlling the pressure of the gas collecting pipe, the pressure of ammonia water and the suction force of the blower

The coke oven keeps smooth communication with a recovery system, and keeps ammonia clean, the pressure of high-low pressure ammonia and the suction of a blower stable; arranging a post for inspection, and finding blockage to process in time; further optimize the discharge pressure control system, effectively prevent the appearance of discharge temperature on the high side, the too big scheduling problem of pressure.

Compared with the prior art, the invention has the beneficial technical effects that:

the method for treating the excessive growth of the graphite in the coking chamber of the coke oven is suitable for controlling the excessive growth of the graphite in the coke oven by coking enterprises, ensures the normal and stable production of the coke oven, prolongs the service life of the coke oven, and has obvious economic benefit and wide application prospect.

Detailed Description

In order to solve the problem of rapid growth of graphite in a carbonization chamber, the invention provides a method for solving the problem of excessive growth of graphite, so that the normal and stable production of a coke oven is ensured, and the service life of the coke oven is prolonged.

The present invention will be described in detail with reference to specific examples.

The invention provides a processing method for too fast graphite growth of a coke oven carbonization chamber, which specifically comprises the following steps:

s1, adopting reasonable coal blending ratio

On the premise of ensuring the quality of the coal, the coal blending ratio is further controlled, the stability of quality parameters such as volatile components, G values, X values, Y values and the like of the blended coal is kept, and the growth speed of the graphite is controlled from the source. Wherein the volatile component is controlled below 27.5%, the G value is greater than 75, the X value is less than 40, and the Y value is greater than 15. The quality of the produced blended coal is shown in Table 1.

TABLE 1

S2, establishing a reasonable graphite cleaning system for the carbonization chamber

S2.1: the coke oven is cleaned manually, operators often carefully observe the growth conditions of graphite at the coal charging port, the ascending pipe and the bridge pipe in the area, grasp the distribution condition and the growth speed of graphite of each oven number, timely remove and operate the coal charging hole of the coking chamber, the graphite around the bridge pipe and the ascending pipe by steel drill according to the area every week, and a management department checks and supervises the graphite cleaning condition of the coking chamber.

S2.2: the graphite in the coking chamber is removed by using machinery, and two kinds of machinery, namely scraper scraping and air pipe blowing, are selected to remove the graphite in the coking chamber according to the characteristics of the furnace body of the current coke oven. When the graphite in the carbonization chamber is accumulated thickly and cannot be cleaned manually, the compressed air blowing device at the top end of the coke pushing rod is recovered, and a scraper is arranged at the head of the coke pushing rod. The size of the scraper is gradually increased according to the width of the carbonization chamber and the height of the coke pushing rod, the scraper is added every two cycles, the duty ledger is recorded, and the responsibility of the coke pushing vehicle driver is enhanced so as to prevent the scraper from scraping the furnace wall. The compressed air purging is mainly used for clearing the carbonization chamber with the serious furnace top graphite, and an operator performs purging on the corresponding furnace number according to usual observation and cleaning conditions and records. The purging of all furnace numbers is strictly forbidden, and the degradation of furnace top bricks and the leakage of the furnace top are prevented, so that the tightness and the integrity of a furnace body are influenced.

S2.3: the following matters need to be paid attention to in the graphite treatment process of the carbonization chamber, firstly, in the graphite treatment process, a manager needs to go to the site to command according to the production condition; secondly, in order to prevent the burning of the fleeing flame, an operator should stand at the windward part; thirdly, when the graphite is removed, the coke pushing coefficient is prevented from being influenced on time; and fourthly, the burning-out furnace is strictly forbidden to remove the graphite, and the burning-out furnace has larger negative influence, so that the coke pushing sign is easy to be disordered.

S2.4: the method can prevent graphite in the carbonization chamber from bonding, the high-temperature anti-sticking glaze is coated on the surface of the furnace wall and the root of the ascending tube to prevent the graphite from bonding, and the non-stick high-new material has corrosion resistance and self-cleaning performance and does not stick organic matters such as coking oil and the like.

S3, controlling the heating system of the coke oven

S3.1: keeping the coking time relatively stable, reducing frequent change of the coking time, avoiding shortening the normal coking time and slowing down the graphite generation speed;

s3.2: controlling the temperature of the furnace top space to be 800-850 ℃, and controlling the temperature of the furnace top space by a temperature regulator through adjusting and controlling parameters such as an excess air coefficient, the temperature of a furnace wall, the central temperature of a coke cake, the suction force at the top of a regenerator and the like;

s4, enhancing production operation

The coal charging operation needs to realize full filling, solid filling, even filling and flat filling, and effectively avoids the phenomena of hole blockage, corner shortage and the like; the coke pushing operation is strictly required according to the operation standard, and the vibration of a coke pushing rod is reduced as much as possible; the problems of uneven coal breakage, easy coal blockage due to flat coal, inclination of a coke pushing rod, large coke pushing current and the like are quickly solved;

s5, controlling the pressure of the gas collecting pipe, the pressure of ammonia water and the suction force of the blower

The coke oven keeps smooth communication with a recovery system, and keeps ammonia clean, high and low pressure ammonia water pressure and blower suction stable as much as possible; arranging a post for inspection, and finding blockage to process in time; further optimize the discharge pressure control system, effectively prevent the appearance of discharge temperature on the high side, the too big scheduling problem of pressure.

Through verification, the coking enterprises can control the over-fast growth of the graphite of the coke oven by the method, ensure the normal and stable production of the coke oven and prolong the service life of the coke oven.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.