Multifunctional tool for clearing up the clogging of coke oven skew ramp

By designing a multifunctional tool for cleaning the obstruction of the coke oven inclined chute, and utilizing a combination of heat-resistant stainless steel pipe and a detachable cleaning head, the problem of obstruction at the coke oven inclined chute was solved, achieving efficient cleaning and gas saving.

CN224590881UActive Publication Date: 2026-08-04BENGANG STEEL PLATES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BENGANG STEEL PLATES CO LTD
Filing Date
2025-09-10
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, the inclined duct of a coke oven is prone to blockage due to the adhesion of particulate matter and free carbon after long-term use. Moreover, the blockage problem caused by the shedding of mud and refractory materials during hot repair is difficult to solve efficiently without stopping production.

Method used

A multifunctional tool for clearing blockages in the inclined coke oven chute is designed, comprising a heat-resistant stainless steel pipe body and a detachable cleaning head, a cleaner, a drainer, and a separator, which are independently installed via nuts. It utilizes cross bracing, a pointed design, and a spiral structure to achieve preliminary cleaning, breaking, and separation of blockages.

Benefits of technology

It effectively solved the problem of blockage at the inclined duct of the coke oven, improved the smoothness of the vertical flue, reduced the labor intensity and tool costs of workers, saved gas consumption, and ensured the quality of coke.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of tool for clearing up and through multifunctional coke oven inclined way intersection block, it is related to coke oven thermal field, including: heat -resistant white steel pipe main part, upper portion is equipped with operating handle, lower portion is detachable cleaning head portion by internal thread connection;Cleaning head portion includes cleaner, dredger and separator, three are independently installed in heat -resistant white steel pipe main part lower end by nut;Cleaner top is equipped with cross brace, for supporting inclined way intersection edge and carrying out preliminary cleaning to fine sundries;Dredger lower end is sharp mouth design, for breaking hard block in inclined way intersection;The lower end of separator is sharp mouth spiral structure, and the breakage and separation of blockage are realized by rotating friction.This utility model structure and use method are simple, greatly reduce worker's labor intensity, tool cost is particularly low, avoid long time high temperature work.Coke oven inclined way intersection block problem is effectively solved, improves the smooth rate of vertical fire way, provides guarantee for ensuring high-quality coke.Meanwhile, it also saves the use amount of coal gas.
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Description

Technical Field

[0001] This utility model relates to the field of coke oven thermal engineering, and in particular to a multifunctional tool for clearing blockages in the inclined coke oven chute. Background Technology

[0002] The coke oven inclined duct is an important component of the coke oven structure, primarily used to connect the combustion chamber and the regenerator, ensuring the rational distribution and flow of gas and air. Located at the bottom of the combustion chamber, it serves as a crucial link between the two. It is the channel for the flow of gases (gas, air, and exhaust gas). The inclined duct has a certain angle (usually 25-30°) to facilitate smooth gas flow and reduce resistance. Its function is to introduce gas and air from the regenerator into the combustion chamber while simultaneously discharging the exhaust gas after combustion; to control the gas flow rate and direction through the size and angle of the inclined duct, thus affecting combustion efficiency; and to coordinate the pressure difference between the combustion chamber and the regenerator, maintaining the stability of the coke oven's thermal regime. Its design principle, based on gas flow rate, requires ensuring uniform airflow distribution and avoiding localized overheating or blockage. It is typically constructed using silica bricks to ensure high-temperature resistance, corrosion resistance, and long-term functional stability under high temperatures. Based on gas flow, it is divided into: an ascending inclined duct, which mainly transports gas and air to the combustion chamber (ascending airflow stage). The descending inclined duct is for discharging exhaust gas into the heat storage chamber (descending airflow stage).

[0003] Due to the long service life of coke ovens, particulate matter enters the inclined passage with the airflow during coal charging operations or furnace wall spalling. Free carbon (graphite) produced by coal gas pyrolysis adheres to the inclined passage opening, gradually accumulating and clogging the passage. Cleaning the blockage at the inclined passage opening is a crucial task in the hot repair of old coke ovens. The inclined passage opening corresponds to a long vertical flue. To clean the inclined passage opening, the inspection hole cover must be opened from the top of the furnace, and then cleaning tools must be inserted into the vertical flue to thoroughly clear the blockage. The cleaning tools must be longer than the length of the vertical flue. In existing technology, three different cleaning tools are typically used to clean the blockage at the inclined passage opening. Because the operating tools are 6 meters long, frequent changes cause deformation of the tools when in contact with high-temperature zones, affecting the cleaning effect.

[0004] In hot repair, the sloping chute can become blocked due to the shedding of mud and refractory materials. Against this background, we are looking for a practical tool that can efficiently and conveniently solve the blockage of the sloping chute without interrupting production. Utility Model Content

[0005] This utility model provides a multifunctional tool for clearing blockages in the inclined coke oven chute, solving the problem of blockages caused by the shedding of mud and refractory materials during hot repairs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multifunctional tool for clearing blockages in the inclined coke oven chute includes: a heat-resistant stainless steel pipe body with an operating handle at the top and a detachable cleaning head connected to the bottom via an internal thread; the cleaning head includes a cleaner, a unclogger, and a separator, all three of which are independently installed at the lower end of the heat-resistant stainless steel pipe body via nuts; The cleaner is equipped with a horizontal brace at the top to support the edge of the ramp and to perform preliminary cleaning of small debris; The lower end of the unblocker is designed with a pointed tip to break up hard objects blocking the inclined channel. The lower end of the separator has a pointed spiral structure, which breaks down and separates the blockage through rotational friction.

[0007] Furthermore, the operating handle of the heat-resistant stainless steel pipe body is made of heat-resistant stainless steel, and the surface of the handle is provided with anti-slip texture.

[0008] Furthermore, the cross braces on both sides of the top of the cleaner are retractable structures.

[0009] Furthermore, the lower end of the drain cleaner has a pointed conical structure with a tip angle of 30°-45°, and its surface is coated with a high-temperature wear-resistant coating.

[0010] Furthermore, the separator's spiral structure is a bidirectional spiral groove with a spiral angle of 15°-20°, which enhances the crushing efficiency during rotation. Furthermore, the heat-resistant stainless steel pipe body is equipped with an operating handle on its upper part.

[0011] The beneficial effects of this utility model are as follows: 1. The structure and usage of this utility model are simple, greatly reducing the labor intensity of workers, with particularly low tool costs, and avoiding long-term high-temperature work.

[0012] 2. The problem of blockage at the inclined coke oven chute has been effectively solved, improving the unobstructed flow rate of the vertical flue and ensuring the production of high-quality coke. It also saves on gas consumption. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Explanation of icon numbers: 1. Heat-resistant stainless steel pipe body; 2. Internal thread; 3. Cleaner; 4. Unblocker; 5. Separator; 6. Cross brace; 7. Pointed spiral structure; 8. Pointed conical structure; 9. Nut; 10. Operating handle. Detailed Implementation

[0016] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] This utility model provides a technical solution: a multifunctional tool for clearing blockages in the inclined coke oven chute, such as... Figure 1 As shown, the heat-resistant stainless steel pipe body 1 has an operating handle 10 on its upper part and a detachable cleaning head connected to its lower part by an internal thread 2; the cleaning head includes a cleaner 3, a drain cleaner 4 and a separator 5, which are independently installed at the lower end of the heat-resistant stainless steel pipe body 1 by nuts 9; The cleaner 3 has a cross brace 6 on top to support the edge of the ramp and to perform initial cleaning of small debris; The lower end of the drain cleaner 4 is designed with a pointed tip to break up hard objects blocking the inclined channel. The lower end of the separator 5 is a pointed spiral structure 7, which breaks down and separates the blockage through rotational friction.

[0020] Preferably, the operating handle 10 of the heat-resistant stainless steel pipe body 1 is made of heat-resistant stainless steel, and the surface of the handle is provided with anti-slip texture.

[0021] Preferably, the cross braces 6 on both sides of the top of the cleaner 3 are retractable structures.

[0022] Preferably, the lower end of the drain cleaner 4 is a pointed conical structure 8 with a tip angle of 30°-45° and a high-temperature wear-resistant coating on the surface.

[0023] Preferably, the spiral structure of the separator 5 is a bidirectional spiral groove with a spiral angle of 15°-20°, which is used to enhance the crushing efficiency during rotation.

[0024] Preferably, the upper part of the heat-resistant stainless steel pipe body 1 is provided with an operating handle 10.

[0025] The main body 1 is a 6-meter heat-resistant stainless steel pipe. The lower part, via nut 9, can be fitted with three different cleaning heads, each with an independent disassembly function to clean non-blocking materials and those at different angles of blockage. The cleaner 3 has a horizontal support 6 at the top, which supports the inclined channel, allowing operators to perform initial cleaning of fine debris within the channel from the furnace top area. The unblocker 4, with its pointed tip and heat-resistant steel material, thoroughly clears and unclogs hard objects blocking the inclined channel, breaking them up to achieve the desired unclog. The separator, with its pointed tip and spiral design, breaks up and rotates to clean blockages that the unblocker 4 cannot handle, thus separating the blockage from the inclined channel.

[0026] In tests on 34 problem cases of coke oven chute blockage, the overall effectiveness rate was over 98%. This verifies that the cleaning tool is rationally and scientifically designed, simple to operate, and easy to implement.

[0027] After more than two months of implementation, the problem of blockage at the coke oven inclined duct has been effectively resolved, improving the unobstructed flow rate of the vertical flue and ensuring the production of high-quality coke. It has also reduced the consumption of coal gas.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multifunctional tool for clearing the clogging of the inclined passageway of a coke oven, characterized in that, include: The heat-resistant stainless steel pipe body (1) has an operating handle (10) on its upper part and a detachable cleaning head connected to its lower part by an internal thread (2); the cleaning head includes a cleaner (3), a drain cleaner (4) and a separator (5), which are independently installed at the lower end of the heat-resistant stainless steel pipe body (1) by nuts (9); The cleaner (3) is provided with a cross brace (6) at the top, which is used to support the edge of the ramp and to perform preliminary cleaning of fine debris; The lower end of the unblocker (4) is designed with a pointed tip to break up hard objects blocking the inclined channel. The lower end of the separator (5) is a pointed spiral structure (7), which breaks and separates the blockage through rotational friction.

2. The multi-functional tool for clearing the clogged skew crossing of a coke oven battery according to claim 1, characterized in that, The operating handle (10) of the heat-resistant stainless steel pipe body (1) is made of heat-resistant stainless steel, and the surface of the handle is provided with anti-slip texture.

3. The multi-functional tool for clearing the clogged skew crossing of a coke oven battery according to claim 1, characterized in that, The horizontal supports (6) on both sides of the top of the cleaner (3) are retractable structures.

4. The multi-functional tool for clearing the clogged skew crossing of a coke oven battery according to claim 1, characterized in that, The lower end of the drain cleaner (4) is a pointed conical structure (8) with a tip angle of 30°-45° and a high-temperature wear-resistant coating on the surface.

5. The multi-functional tool for clearing the clogged skew crossing of a coke oven battery according to claim 1, characterized in that, The separator (5) has a bidirectional spiral groove with a spiral angle of 15°-20°, which is used to enhance the crushing efficiency during rotation.

6. The multi-functional tool for clearing the blocked skew crossing of a coke oven battery according to claim 1, characterized in that, The heat-resistant stainless steel pipe body (1) is provided with an operating handle (10) on the upper part.