Common sense of coke oven 92 series sequence

1. How to arrange the coke oven discharge plan?

Arrange the shift plan according to our production task, shift plan, expected completion, furnace temperature and coke cake maturity, machinery and equipment operation and inspection.

The coke pushing plan should also be formulated according to the periodic maintenance plan and the actual coke pushing and coal loading time of each carbonization chamber in the last turnover. This arrangement is to ensure that the coking time of each furnace does not differ from the specified coking time by more than 5 minutes, and to ensure the necessary operation time. At the same time, the furnace temperature and coal conditions should be considered, and the random number should be adjusted as much as possible.

After the whole furnace is pushed once, it should be considered for a period of time so that the coke oven machinery and equipment can be overhauled as planned. Here, we must master several concepts of time, such as coking time, turnover time, coke pushing time, coal loading time, operation time (single furnace, full furnace) maintenance time, large cycle and small cycle time and coke pushing sequence used.

Do you know the carbonization chamber with 2.92 threads?

This should be a continuation of the 9-2 series! Is there really a 90-point reward? Operating rules of forehearth workers: 1, post responsibilities: 1. 1. Main responsibilities: 1. 1. Report directly to the leader of the team leader and complete the tasks assigned by him.

1. 1.2 Strictly implement the safety technical operation procedures. 1. 1.3 Assist the driver to deal with the accident, and assist the driver of the coal pusher or coke trap to pick the right oven door.

1. 1.4 is responsible for cleaning the graphite, tar, tar coke and tail coke on the oven door and frame, and removing the graphite on the furnace wall in time. 1. 1.5 is responsible for adjusting the oven door to prevent smoke and fire.

1. 1.6 Be familiar with the equipment maintenance of this position and related positions. 1. 1.7 Maintain the tools used, do a good job in the environmental sanitation of this position, and do a good job in succession.

1.2 shift system 1.2. 1 attend the pre-shift meeting on time and listen to the work assignment. 1.2.2 arrive at work on time and check the following items: 1.2.3 check the furnace door, furnace frame, furnace column and furnace platform and keep them clean, and all cross bars should be in place.

1.2.4 cleaning tools should be placed in the designated position completely and neatly. 1.2.5 The successor should learn more about the successor's work.

1.2.6 report the succession to the team leader after knowing the situation. 1.2.7 clean this post before the handover, and put the tools in the designated position.

1.2.8 take the initiative to introduce the work of this class to the successor in detail, and the successor can only leave work after agreeing. After the release accident, if it has not been handled in the class, it is not allowed to leave without the consent of the successor.

1.2.9 report to the team leader after the shift. 1.2. 10 After attending the shift, the shift attendants will listen to the work summary.

2. Process description: assist the driver to finish the operations such as oven door stripping, coke pushing and coal loading within the specified operation time, and do a good job in cleaning the oven door, door frame, graphite on the furnace wall and the operation platform. 3, post operation 3. 1 According to the pusher plan, assist the driver to pick up the goods.

3. 1. 1 Assist in aligning the oven door of the coke oven number to be delivered. 3. 1.2 After the door lifting mechanism is hooked on the oven door, notify the driver to loosen the big screw and make the cross bar come out from the oven door hook.

3.2 After taking out the oven door, the following work should be completed: 3.2. 1 Clean the knife edge under the cross iron at the top of the oven door and the tar and graphite on the lining brick. 3.2.2 Check the damage of the knife edge.

3.2.3 If there is a large amount of inverted coke on the coke side, only after the inverted coke is removed can the driver of the coke stop car be informed to aim at the coke guide groove. 3.2.4 If coal caving occurs at the machine side, it shall be cleaned in time to ensure the normal hanging of the oven door.

3.2.5 The foreman of the coke side furnace stood in front of the coke guide grid to clean the furnace frame. 3.3 After coke pushing, the following work should be completed: 3.3. 1 furnace door side cleaning.

3.3.2 Remove tar and carbon deposits from the furnace door frame. 3.3.3 Remove tar, carbon deposit and coke outside the grinding disc.

3.4 After the cleaning work is completed, the coke side foreman informs the oven door driver, and the machine side oven door worker informs the driver to load coal. 3.4. 1 Help the driver to see the mark clearly and aim at the oven door.

3.4.2 Put away the crossbar and inform the driver to tighten the upper and lower screws. 3.4.2. 1 When the transverse iron of the oven door can't fall, the oven door must be dismantled again, and the treatment reason should be checked until the transverse iron falls.

3.4.2.2 is not allowed to hit the beam with external force. 3.5 After ten minutes of coal loading, the oven door shall not get angry and smoke.

3.5. 1 Adjustment of smoke at the knife edge of the oven door after coal loading: the outer clamp block of the knife edge with large smoke should be struck, and then the outer clamp block of the upper and lower knife edges of the smoke should be struck until there is no smoke. 3.5.2 The asbestos board under the knife edge of the oven door smokes, and the small screws can be tightened.

3.5.3 Adjustment of all smoke in the upper or lower part of the oven door: If the big screw is not tightened, notify the driver to tighten it once. If there is still smoke after tightening, check whether there is a coke pad on the big screw of the oven door and the lower part of the oven door.

And report to the team leader, and then handle it according to the situation and make records. 3.5.4 If there is smoke on the knife edge side of the oven door, check whether the oven door is offset. In this case, no adjustment is allowed, and the team leader shall be reported immediately for handling, and records shall be made.

3.5.5 If the driver accidentally touches the oven door and smokes during operation, it should be adjusted; If the furnace door blade is damaged locally and there is a lot of smoke or fire, it can be temporarily blocked with mud, and report to the team leader, make records and ask the furnace door fitter to replace it. 3.5.6 If it is found that individual oven doors are still smoking and burning after long-term adjustment, the oven doors should be replaced.

3.5.7 If the transverse iron of the oven door falls off and smoke occurs, it can be temporarily adjusted and blocked with mud, but not too much. Keep the oven door clean, report to the team leader, make records, find out the reason when coming out of the oven next time, and focus on the treatment. 3.5.8 After coal loading, the oven door is on fire, which shall be guaranteed to be destroyed at any time.

3.5.8. 1 Air duct shall be used for fire fighting, and water shall not be used. In case of large fire in 3.5.8.2, report to the team leader, first open the riser cover, adjust the oven door, or block it with mud, and then cover the riser cover.

3.5.9 If the furnace door blade is damaged, it should be reported to the group leader and recorded, and the fitter of the furnace door should be asked to repair or replace it. 3.6 Special Operation 3.6. 1 In case of power failure or accident during coke pushing or coal loading, the coke pushing rod or coal loading tray stays in the carbonization chamber.

3.6.1.65438+3.6.1.2 All treatment processes are under the unified command of the team leader.

3.6.2 When an accident occurs in the process of coke pushing and the coke guide groove is full of red coke. 3.6.2.65438+

After the broken coke on the machine side of 3.6.2.2 is pulled out, the coke on both sides is separated from the joint, and then the team leader will guide the next work. 4. Equipment maintenance and summary 4. 1 Coke oven body model: TJL4350D Carbonization chamber size: Total length of carbonization chamber:14080mm Effective length:13280mm Machine side width: 495mm coke side width: 505mm average width: 500mm Effective volume: 26.6m2. m 4。 2 oven door size oven door blade height:. Width: 65 mm Blade width: 5 mm 5. Safety technical regulations 5. 1 When the oven door is opened, the operator should leave the oven door quickly.

5.2 When the locomotive is running, it is forbidden to rest and get on or off the track. 5.3 When the locomotive is running, the oven door worker shall not stand between the furnace columns to let the car pass.

5.4 Don't joke at work, and don't throw things at will. 5.5 The pull rod, safety bolt and safety hook on the oven door shall not be removed at will.

5.6 When centering the oven door, if the transverse iron is not in place, the driver shall be informed to re-center the oven door. 5.7 It is forbidden to put out the fire by splashing water on the oven door, hob and column.

5.8 When opening and closing the oven door, prevent the cross bar from squeezing hands. 5.9 Strictly abide by the post operation procedures of grinder.

5. 10 has been cleaned.

3. How to arrange the coke oven production plan?

52 series sequences are the same as other series sequences. Calculate the maintenance time according to the running time, and then arrange the maintenance time reasonably within the whole turnaround time. For example, your operation time is 10 minutes. When you say that 40 hours is just the turnaround time, you have 70 carbonization chambers, so your whole furnace operation time is 70 times that of 10, that is, 700 minutes = 10. Then the turnover time is subtracted from the whole furnace operation time, and the maintenance time is 28 hours and 20 minutes. Then you assign the time after each symbol (52 serial numbers are only 1.2.3.4.5). According to the actual situation, the maintenance time after each signature can be long or short, but the total maintenance time is the time you calculated.

-pure handwriting, laborious.

4. How to arrange the coke oven production plan?

52 series sequences are the same as other series sequences. Calculate the maintenance time according to the running time, and then arrange the maintenance time reasonably within the whole turnaround time. For example, your operation time is 10 minutes. When you say that 40 hours is just the turnaround time, you have 70 carbonization chambers, so your whole furnace operation time is 70 times that of 10, that is, 700 minutes = 10. Then the turnover time is subtracted from the whole furnace operation time, and the maintenance time is 28 hours and 20 minutes. Then you assign the time after each symbol (52 serial numbers are only 1.2.3.4.5). According to the actual situation, the maintenance time after each signature can be long or short, but the total maintenance time is the time you calculated.

-pure handwriting, laborious.

5. Coking, coking coal knowledge

Coke is usually divided into metallurgical coke (including blast furnace coke, casting coke and ferroalloy coke, etc. ), gasification coke and calcium carbide coke.

A new type of coke made of pulverized coal by pressurized carbonization is called formed coke. The full text is as follows. Coking coal introduction Coking coal resources introduction Coking coal distribution type Calcium carbide coke basic knowledge Ferroalloy coke basic knowledge Ferrosilicon alloy production requirements Coke quality index Coke tower experimental method Coking coal introduction Coking coal resources introduction Coking coal distribution type Calcium carbide coke basic knowledge Ferrosilicon alloy production requirements Coke quality index Coke tower experimental method Coking coal introduction This paragraph: Coking coal is classified according to the use of coal, used as raw materials to produce coke, and then used as coal in iron and steel industry.

In addition to coking coal, it is also divided into power coal for power fuel, anthracite for chemical raw materials and injection coal for blast furnace injection in iron and steel industry. Coking coal mainly includes lean coal, lean coal, coking coal, 1/3 coking coal, fat coal, gas coal and gas fat coal.

According to the data in BP World Energy Statistics 2007, by the end of 2006, the proven recoverable reserves of coal in the world were 909.064 billion tons, and the recoverable life was 147 years. According to the degree of coal metamorphism, the proportion of coking coal in the proven coal resources is less than110.

Among the coking coal resources in the world, fat coal, main coking coal and lean coal account for about 1/2, and their economically recoverable reserves are about 500 billion tons, of which the high-quality coking coal resources with low ash and low sulfur are only about 60 billion tons. About12 of the world's coking coal resources are distributed in Asia,14 in North America and the rest14 in other parts of the world.

From the perspective of coking coal reserves, China's coking coal resources account for about 25% of the world, which has a comparative advantage. China coking coal reserves are low, and high-quality resources are scarce.

China's coking coal reserves are only 275.8 billion tons, accounting for 27% of the country's proven coal resources reserves. Among them, gas coal accounts for 13.75%, fat coal accounts for 3.53%, main coking coal accounts for 5.8 1% and lean coal accounts for 4.0 1%.

Remove the parts with high ash and sulfur content, which are difficult to clean and cannot be used for coking. High-quality coking coal and fat coal resources are scarce, accounting for less than 6% and 3% of the identified coal resources reserves respectively. Compared with China's abundant coal resources, China's coking coal resources are relatively scarce, accounting for only 26.3% of China's total coal reserves, and almost no new prospecting discoveries have been made in recent years.

Among them, the gas coal reserves with poor cohesiveness and suitable for coal blending account for nearly half, while the main coking coal and fat coal with strong cohesiveness only account for 3.53% and 5.8 1% of the total coal reserves, which means that the main coal blending varieties of main coking coal-main coking coal and fat coal only account for about 36% of the total coal reserves. Edit the distribution of coking coal in this section? 80% of coking coal resources within 0/000 meters of China/KLOC are distributed in Shanxi and Guizhou.

Shanxi's proven coking coal reserves are 65.438+06.946 billion tons, accounting for 665.438+0.4% of the national proven coking coal reserves; The recoverable reserves of coking coal in Shanxi Province are 3.31.60 billion tons, accounting for 5 1.3% of the national recoverable reserves. Shanxi province ranks first in the country in terms of recoverable reserves and proven resources of coking coal. The second, third, fourth and fifth places in China are 23.62 billion tons in Anhui Province, 0.72 billion tons in Shandong Province, 9.86 billion tons in Guizhou Province and 9.82 billion tons in Heilongjiang Province.

Edit this paragraph? Types of coke Metallurgical coke is the general name of blast furnace coke, casting coke, ferroalloy coke and coke for smelting non-ferrous metals. Because more than 90% metallurgical coke is used in blast furnace ironmaking, blast furnace coke is often called metallurgical coke.

China metallurgical coke quality standard (GB/T 1996-94) is the quality standard of blast furnace. Gasification coke is a kind of coke specially used for producing gas.

It is mainly used in fixed bed gas producer with solid slag discharge, as gasification raw material, to produce gas with combustible components of carbon monoxide and H2. The main reactions in the gasification process are: c+O2 → CO2+408177kj CO2+c → 2co-162142kj c+H2O → co+H2-1kloc-0/8628kj c.

Gasified coke requires low ash content, high ash melting point and proper and uniform molding. Its general requirements are as follows: Fixed carbon; 80%; Ash1250℃; The basic knowledge of calcium carbide coke in this paragraph is edited by volatiles. Calcium carbide coke is used as conductor and heating coke in electric arc furnace for producing calcium carbide.

Coke for calcium carbide is added into an electric arc furnace, and under the action of high temperature of arc heat and resistance heat (1800-2200℃), it reacts with limestone to produce molten calcium carbide. The formation process of coke for calcium carbide can be expressed by the following reaction formula: Cao+3C → CaC2+Co-46.52kJ.. Coke for calcium carbide should have the characteristics of low ash content, high reactivity, high resistivity and moderate particle size, and powder and moisture should be removed as much as possible.

Its chemical composition and particle size should generally meet the following requirements: fixed carbon is more than 84%, ash is less than 65438 04%, volatile matter is less than 2%, sulfur is less than 65438 0.5%, phosphorus is less than 0.04%, and moisture is less than 65438 0.0%. Particle size depends on the capacity of electric arc furnace for producing calcium carbide: electric arc furnace capacity /KV? A particle size /mm 20000 3-20 particle size qualified rate requirements in more than 90%. Edit the basic knowledge of ferroalloy coke in this section. Ferroalloy coke is used for smelting ferroalloy in submerged arc furnace.

Ferroalloy coke, as a solid reductant, participates in the reduction reaction in submerged arc furnace, and the reaction mainly occurs in the middle and lower high temperature zone of the furnace. Taking ferroalloy smelting as an example, the reaction formula is silica (liquid) +2C (solid) = silicon (liquid) +2C (gaseous). With the progress of the reaction, the fixed carbon in coke is continuously consumed and mainly escapes from the top of the furnace in the form of CO. ..

Some or most of alumina, iron oxide, calcium oxide, magnesium oxide and phosphorus pentoxide in coke ash are reduced and enter the alloy. The part that did not participate in the reaction entered the slag. Sulfur and silicon in coke generate silicon sulfide and silicon disulfide and then volatilize.

Different kinds of ferroalloys have different requirements for coke quality, and the highest quality is required when producing ferrosilicon alloy, so the ferroalloy coke produced by ferrosilicon alloy can generally meet the requirements of other ferroalloys. Edit the requirements for coke in the production of ferrosilicon alloy in this paragraph: high carbon content, low ash content, less harmful substances such as alumina and phosphorus pentoxide in ash, good coke reactivity, and coke resistivity, especially high temperature resistivity.