Smooth scratch control method for scratched oven number of coke oven

Abstract

The invention specifically discloses a sequential control method for a scratched oven number of a coke oven, which belongs to the technical field of thermal engineering of coke ovens and sequentially comprises the following steps of: mounting a K-type thermocouple on a sampling hole at the root of an ascending pipe of the scratched oven number; after coaling according to the furnace number, the pore plate of the combustion chamber of the furnace number is replaced by the pore plate required after the coking time is prolonged; recording data of the K-type thermocouple once at a first time interval; after the data of the K-type thermocouple reaches a first temperature, closing a gas adding and reducing cock with a scratchpad furnace number; the coking time of the furnace number is prolonged by 1 / 4 of the normal furnace number; and after the coke pushing and coal charging operation of the furnace number is finished, opening a coal gas adding and reducing cock, and repeating the steps S3-S5 until the furnace number is scratched. The method does not need to judge whether to select a forward or backward losing method, and the negation time is 3-4 days, so that the negation operation time and the misoperation hidden danger caused by the negation process are greatly shortened compared with the traditional forward method, and the time is shortened by half compared with the traditional backward losing method.

Description

Technical Field

[0001] This invention relates to the field of coke oven thermal technology, specifically to a method for controlling the sequential order of coke oven furnace numbers. Background Technology

[0002] Due to various reasons, one or more furnace numbers may be delayed in their coking operations, resulting in what is known as "chaotic scheduling." In this case, the scheduling process should involve gradually "reorganizing" the schedule to restore normalcy as quickly as possible. The method for restoring normalcy is as follows: (1) Moving forward: Each time the batch is fired, the batch number of the randomized batch is moved forward by 1 to 2 batches to gradually bring it back to its original position in the sequence. This method does not lose the number of batches, but the adjustment is slow and usually takes up to a month.

[0003] (2) Drop it backwards, that is, do not drop it when the furnace number is produced, so that it is dropped backwards and gradually adjusted to the original position. This adjustment is fast, but the number of furnaces is lost.

[0004] The shortcomings of the existing random number control method are: (1) It does not explain under what conditions it can be dropped to the front or under what conditions it can be dropped to the back.

[0005] (2) The original method for controlling random letter numbers did not explain the control of the combustion chamber temperature on both sides of the random letter number carbonization chamber.

[0006] (3) If the disordered stamping number delays the coking time by half a month due to furnace wall repair, one method is to move it forward, in which case the stamping time will be at least 33 days; the other method is to move it backward, in which case the stamping time will be at least 7 days. The existence of disordered stamping numbers requires attention to their low temperature (moving forward) and high temperature (moving backward) values. More importantly, in the actual process of pushing coke and charging coal, disordered stamping furnace numbers often lead to the misoperation of removing the wrong furnace door and opening the wrong riser cover. Quickly stamping the furnace is beneficial to eliminating the above-mentioned potential production hazards. Summary of the Invention

[0007] The purpose of this invention is to provide a method for controlling the sequential processing of random coke oven numbers. This method is mainly applied to current large coke ovens and solves the problems of long processing time and high operational difficulty in the sequential processing of random coke oven numbers.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A method for controlling the sequential order of coke oven oven numbers, the method comprising the following steps in sequence: S1. Install a K-type thermocouple on the sampling hole at the root of the riser pipe of the random furnace. S2. After coal is charged into the furnace number, the orifice plate of the combustion chamber of that furnace number is replaced with the orifice plate required to extend the coking time. S3. Record the data of the K-type thermocouple once at the first interval; After the S4 and K type thermocouples reach the first temperature, close the gas add / subtract valve of the random furnace number. S5. Extend the coking time of the random furnace number by 1 / 4 of that of the normal furnace number; After the coke pushing and coal charging operation of the S6 furnace is completed, open the gas addition / reduction valve and repeat the above steps S3-S5 until the order is correct.

[0009] Preferably, the first temperature is 280°C.

[0010] Preferably, the first time is 1 hour.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This patented method eliminates the need to determine whether to choose to advance or retreat the paper. The paper sorting time is 3-4 days, which significantly reduces the paper sorting operation time and the risk of errors caused by the traditional advance method. It also reduces the time by half compared to the traditional retreat method. For the first time, it achieves standardized paper sorting operation in a data-driven manner, overcoming the uncontrollable factors brought about by the original experience. Detailed Implementation

[0012] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below through examples.

[0013] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0014] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example:

[0015] One coke oven, numbered 1# and 2#, is a 7m coke oven of type JNX3-70-1, with 2×65 orifices. The specified coking time is 24 hours, the standard temperature is 1265 / 1310℃, the orifice diameter is 50mm, and the random number is 12 for the carbonization chamber. The 7m coke oven is the intended application. This embodiment provides a method for controlling the sequential ordering of coke oven number stamps, which includes the following steps: S1. Install a K-type thermocouple on the sampling hole at the root of the riser pipe in carbonization chamber No. 12. After coal is loaded into carbonization chambers S2 and S2, the orifice plate of the combustion chamber of that furnace number is replaced with the orifice plate (40mm in diameter) required after extending the coking time (30:00). S3. Record the data of the K-type thermocouple every hour; After the temperature of the S4 and K type thermocouples reaches 280℃, close the gas control valve in combustion chamber 12. S5. Extend the coking time of the random furnace number to 30:00 before proceeding with coke pushing and coal charging operations. After the coking and coal charging operation of the S6 furnace is completed, open the gas add / subtract valve and repeat the above steps S3-S5 until the coal is charged smoothly after 3 days.

[0016] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for controlling the sequential order of coke oven furnace numbers, characterized in that, The method includes the following steps in sequence: S1. Install a K-type thermocouple on the sampling hole at the root of the riser pipe of the random furnace. S2. After coal is charged into the furnace number, the orifice plate of the combustion chamber of that furnace number is replaced with the orifice plate required to extend the coking time. S3. Record the data of the K-type thermocouple once at the first interval; After the S4 and K type thermocouples reach the first temperature, close the gas add / subtract valve of the random furnace number. S5. Extend the coking time of the random furnace number by 1 / 4 of that of the normal furnace number; After the coke pushing and coal charging operation of the S6 furnace is completed, open the gas addition / reduction valve and repeat the above steps S3-S5 until the order is correct.

2. The method for controlling the sequential order of coke oven numbering according to claim 1, characterized in that, The first temperature is 280℃.

3. The method for controlling the sequential order of coke oven numbering according to claim 1, characterized in that, The first time period is 1 hour.