A scraper door cleaning device with high pressure water

By combining a high-pressure water nozzle with a movable frame of a side scraper and an upper and lower cleaning mechanism, the problem of incomplete furnace door cleaning in existing technologies has been solved, achieving efficient all-round cleaning and improved sealing of the furnace door.

CN122127997APending Publication Date: 2026-06-02DALIAN HUARUI HEAVY IND COKE OVEN VEHICLE EQUIP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN HUARUI HEAVY IND COKE OVEN VEHICLE EQUIP
Filing Date
2026-03-31
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing coke oven door cleaning devices cannot effectively clean the corners of the door bricks, and traditional spiral milling cutters have low cleaning efficiency and may damage the door bricks.

Method used

The movable frame with high-pressure water nozzles and side scrapers, combined with the upper and lower cleaning mechanisms, enables efficient and all-round cleaning of furnace door bricks and blade edges, combining mechanical scraping with high-pressure water washing.

Benefits of technology

It achieves absolute cleanliness of the furnace door bricks and spring blade edges, improves the sealing tightness of the furnace door, protects the furnace door components, extends service life, and improves cleaning efficiency.

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Abstract

This invention provides a high-pressure water scraper door cleaning device, belonging to the technical field. It includes a door cleaning trolley, a fixed door cleaning frame, a movable door cleaning frame, an upper cleaning mechanism, a lower cleaning mechanism, a side scraper, a high-pressure water nozzle, a guide elastic adaptation device, and multiple drive cylinders. The fixed door cleaning frame is mounted on the door cleaning trolley via a door cleaning device movement cylinder for docking with the furnace door. The upper and lower cleaning mechanisms are respectively installed at the top and bottom of the fixed door cleaning frame. The movable door cleaning frame is mounted on the fixed door cleaning frame via the guide elastic adaptation device and is driven up and down by a movable door cleaning frame drive cylinder. The side scraper and high-pressure water nozzle are both mounted on the movable door cleaning frame. This invention integrates the high-pressure water nozzle and the side scraper into the movable frame, and, in conjunction with the upper and lower cleaning mechanisms, achieves efficient, flexible, and all-around cleaning of the furnace door bricks and spring blade edges, effectively improving the furnace door's sealing performance and cleaning efficiency.
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Description

Technical Field

[0001] This invention relates to the field of coke oven equipment technology, and more particularly to a scraper cleaning device with high-pressure water. Background Technology

[0002] With increasingly stringent environmental protection requirements, coking plants are implementing stricter controls on flue gas during production. The quality of furnace door seals directly determines whether flue gas will leak out during high-temperature carbonization. At the same time, due to declining birth rates and rising labor costs, the number of personnel willing to clean furnace doors is decreasing year by year. Coking production urgently needs an automated solution that can stably and efficiently clean furnace doors.

[0003] In existing technologies, a coke oven door cleaning device mainly achieves cleaning through a split-type combined scraper (door brick scraper and mirror scraper) combined with chain flexible adjustment and tension spring. However, this method only uses mechanical scrapers and does not integrate a high-pressure water cleaning module, resulting in ineffective handling of the corner areas of the door scraper edges. Another solution uses a combination of high-pressure water and spiral milling cutters for area cleaning, but the rotating cutting structure of the spiral milling cutter poses a risk of abrading the door bricks, and the milling cutter needs to make a long stroke of overall up-and-down movement from bottom to top, resulting in low cleaning efficiency.

[0004] Therefore, how to develop a door cleaning device that can clean the tar lumps accumulated on the furnace door bricks, and also perform flexible, all-round, high-speed and efficient cleaning of the furnace door mirror surface and spring blade edge without damaging the furnace door bricks is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] To address the aforementioned technical problems, a scraper cleaning device with high-pressure water is provided. This invention integrates a high-pressure water nozzle and a movable frame for the side scraper, along with an upper and lower cleaning mechanism, to achieve efficient, all-around cleaning of the furnace door bricks and scraper edges.

[0006] To achieve the above objectives, the present invention provides a door cleaning device with a high-pressure water scraper, comprising: a high-pressure water nozzle, an upper cleaning mechanism, a door cleaning fixed frame, a guide elastic adaptation device, a door cleaning movable frame, a door cleaning side scraper, a lower cleaning mechanism, a door cleaning movable frame drive cylinder, a door cleaning trolley, a door cleaning trolley track, and a door cleaning device moving cylinder.

[0007] The cleaning trolley is set on the cleaning trolley track; The door cleaning frame is installed on the door cleaning trolley by a door cleaning device moving cylinder, and is used to dock with the furnace door; The upper cleaning mechanism and the lower cleaning mechanism are respectively installed at the top and bottom of the cleaning door fixing frame; The movable frame of the cleaning door is installed on the fixed frame of the cleaning door through a guide elastic adaptation device, and is driven by the hydraulic cylinder of the movable frame of the cleaning door to move up and down along the fixed frame of the cleaning door. The cleaning door side scraper and high-pressure water nozzle are both installed on the cleaning door movable frame.

[0008] Furthermore, the cleaning device's moving cylinder is configured to drive the entire cleaning device to move horizontally along the cleaning trolley track, so as to achieve docking or disengagement of the cleaning device with the furnace door.

[0009] Furthermore, the cleaning door movable frame has an upper limit position and a lower limit position under the drive of the cleaning door movable frame drive cylinder; when the cleaning door movable frame reciprocates between the upper limit and the lower limit, it drives the cleaning door side scraper and high-pressure water nozzle to clean the side of the furnace door.

[0010] Furthermore, the guiding elastic adaptation device is connected between the fixed frame of the cleaning door and the movable frame of the cleaning door, and is configured to enable the movable frame of the cleaning door to flexibly adapt to the shape changes of the furnace door during movement.

[0011] Furthermore, the upper cleaning mechanism integrates a scraper and high-pressure water cleaning functions, and is configured to first clean the top of the furnace door after the door cleaning device is connected to the furnace door.

[0012] Furthermore, the lower cleaning mechanism is configured to clean the bottom and bottom edge of the furnace door when the door cleaning frame drive cylinder drives the door cleaning frame to the upper limit position.

[0013] Furthermore, the side scraper of the furnace door and the high-pressure water nozzle are arranged in a spatial configuration to simultaneously and quickly clean the furnace door bricks and spring blade edges by combining mechanical scraping with high-pressure water rinsing.

[0014] By adopting the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention provides a scraper door cleaning device with high-pressure water, which integrates the side scraper and high-pressure water nozzle on the door cleaning frame to achieve a deep combination of mechanical scraping and high-pressure water washing. It can not only powerfully remove the tar hard lumps accumulated on the furnace door bricks, but also effectively penetrate and clean the spring blade edges and corners that are difficult to reach by traditional mechanical scrapers. This all-round cleaning mode ensures the absolute cleanliness of the furnace door blade edges and significantly improves the sealing tightness of the furnace door.

[0015] 2. The present invention provides a scraper door cleaning device with high pressure water, which drives the movable frame to move up and down rapidly by a hydraulic cylinder driven by the door cleaning movable frame, and cooperates with independent upper and lower cleaning mechanisms to achieve efficient and synchronous operation of the top, bottom and sides of the furnace door in different areas, effectively shortening the cycle time of a single cleaning.

[0016] 3. The present invention provides a scraper door cleaning device with high pressure water, which adopts a stable reciprocating scraping structure to replace the traditional high-speed rotating cutting mode, effectively protecting the furnace door assembly, avoiding cutting wear and structural damage to the furnace door bricks caused by the rotating milling cutter during the cleaning process, and extending the service life of the furnace door. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of a scraper door cleaning device with high-pressure water according to the present invention; Figure 2 This is a top view schematic diagram of a scraper door cleaning device with high-pressure water according to the present invention; Figure 3 This is a schematic diagram of the door cleaning frame structure in a scraper door cleaning device with high-pressure water according to the present invention; Figure 4 This is a schematic diagram of the upper cleaning mechanism in a scraper door cleaning device with high-pressure water according to the present invention; Figure 5 This is a schematic diagram of the lower cleaning mechanism in a scraper door cleaning device with high-pressure water according to the present invention.

[0019] In the diagram: 1. High-pressure water nozzle; 2. Upper cleaning mechanism; 3. Cleaning door fixed frame; 4. Guide elastic adaptation device; 5. Cleaning door movable frame; 6. Cleaning door side scraper; 7. Lower cleaning mechanism; 8. Cleaning door movable frame drive cylinder; 9. Cleaning door trolley; 10. Cleaning door trolley track; 11. Cleaning device moving cylinder; 12. Furnace door. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] 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 scope of exemplary embodiments according to the 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.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0024] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figure to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figure. For example, if the device in the figure is inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0027] like Figures 1 to 5 As shown, the present invention provides a door cleaning device with a high-pressure water scraper, comprising: a high-pressure water nozzle 1, an upper cleaning mechanism 2, a door cleaning fixing frame 3, a guide elastic adaptation device 4, a door cleaning movable frame 5, a door cleaning side scraper 6, a lower cleaning mechanism 7, a door cleaning movable frame drive cylinder 8, a door cleaning trolley 9, a door cleaning trolley track 10, and a door cleaning device moving cylinder 11; The cleaning trolley 9 is slidably mounted on the cleaning trolley track 10. Specifically, the bottom of the cleaning trolley 9 is provided with multiple rollers, which are embedded in the track grooves of the cleaning trolley track 10, so that the cleaning trolley 9 can move smoothly along the extension direction of the track 10.

[0028] The door cleaning frame 3 is positioned above the door cleaning trolley 9. The cylinder end of the door cleaning device moving cylinder 11 is hinged to the door cleaning trolley 9 via a pin, and the piston rod end of the door cleaning device moving cylinder 11 is fixedly connected to the bottom of the door cleaning frame 3 via a connecting seat. When the piston rod of the door cleaning device moving cylinder 11 extends or retracts, it drives the door cleaning frame 3 to move horizontally on the door cleaning trolley 9, for docking or disengaging with the furnace door 12.

[0029] The upper cleaning mechanism 2 is bolted to the top crossbeam of the cleaning door fixing frame 3. The lower cleaning mechanism 7 is bolted to the bottom crossbeam of the cleaning door fixing frame 3.

[0030] The movable frame 5 of the cleaning door is mounted on the fixed frame 3 of the cleaning door via a guide elastic adaptation device 4. Specifically, the fixed frame 3 of the cleaning door has vertical guide rails on both sides, and the movable frame 5 of the cleaning door has sliders on both sides that cooperate with the vertical guide rails, allowing the movable frame 5 of the cleaning door to move up and down in the vertical direction. The cylinder end of the driving cylinder 8 for the movable frame of the cleaning door is fixed to the bottom of the fixed frame 3 of the cleaning door via a hinge seat, and the piston rod end of the driving cylinder 8 is hinged to the bottom of the movable frame 5 of the cleaning door via a pin. When the piston rod of the driving cylinder 8 extends or retracts, it drives the movable frame 5 of the cleaning door to move up and down along the vertical guide rails of the fixed frame 3, and has an upper limit position and a lower limit position.

[0031] The guide elastic adaptation device 4 includes multiple spring guide rod assemblies, each consisting of a guide rod and a compression spring sleeved on the outside of the guide rod. One end of the guide rod is fixed to the cleaning door movable frame 5, and the other end passes through the guide rail on the cleaning door fixed frame 3. The two ends of the compression spring abut against the cleaning door fixed frame 3 and the cleaning door movable frame 5, respectively. This device allows the cleaning door movable frame 5 to flexibly adapt to the shape changes of the furnace door during its up-and-down movement, avoiding jamming or damage caused by rigid contact.

[0032] The side scraper 6 and some of the high-pressure water nozzles 1 are fixedly installed on the movable frame 5 of the cleaning door. The blade of the side scraper 6 faces the side of the furnace door 12 and is used to mechanically scrape off the tar deposits on the furnace door bricks. The nozzle of the high-pressure water nozzle 1 faces the spring blade edge of the furnace door 12 and the furnace door bricks and is used for high-pressure water washing.

[0033] To further define the working relationship between the side scraper 6 and the high-pressure water nozzle 1, multiple sets of side scrapers 6 are provided on the movable frame 5 of the cleaning door, arranged longitudinally along the frame. Similarly, multiple high-pressure water nozzles 1 are provided, each connected to an external high-pressure water source via a high-pressure hose. Spatially, the nozzles of the high-pressure water nozzles 1 are positioned behind the scraping path of the side scraper 6, allowing the high-pressure water nozzles 1 to closely follow the side scraper 6 as the movable frame 5 of the cleaning door moves up and down, providing high-pressure rinsing to the freshly scraped surface to remove residual tar and debris. This close temporal and spatial coordination between mechanical scraping and high-pressure water rinsing ensures thorough cleaning.

[0034] Work process: When the furnace door needs to be cleaned, the cleaning device's moving cylinder 11 drives the cleaning fixing frame 3 to move towards the furnace door 12, so that the entire cleaning device is connected to the furnace door 12. After connection, the upper cleaning mechanism 2 installed on the top of the cleaning fixing frame 3 is activated first, using its integrated scraper and high-pressure water to perform initial cleaning on the top of the furnace door 12.

[0035] Subsequently, the hydraulic cylinder 8 drives the door cleaning frame 5 to move rapidly vertically from the lower limit position to the upper limit position. During the movement, the door cleaning side scraper 6 and the high-pressure water nozzle 1, installed on the door cleaning frame 5, work simultaneously to perform a combined cleaning of the furnace door bricks and spring blade edges on the side of the furnace door 12, using a combination of mechanical scraping and high-pressure water washing. The guide elastic adaptation device 4 ensures that the scraper maintains a constant contact pressure with the furnace door surface during this process.

[0036] When the door cleaning frame 5 is driven to its upper limit position, the lower cleaning mechanism 7 is activated to clean the bottom and bottom edge of the furnace door 12. Afterwards, the door cleaning frame drive cylinder 8 can drive the door cleaning frame 5 to move downwards again for a secondary cleaning. This process is repeated, achieving all-around, high-speed, and efficient cleaning of the furnace door.

[0037] Finally, 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 them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A scraper door cleaning device with high-pressure water, characterized in that, include: High-pressure water nozzle, upper cleaning mechanism, door fixing frame, guide elastic adaptation device, door movable frame, door side scraper, lower cleaning mechanism, door movable frame drive cylinder, door trolley, door trolley track and door device moving cylinder; The cleaning trolley (9) is set on the cleaning trolley track (10); The door cleaning frame (3) is driven by the door cleaning device moving cylinder (11) and installed on the door cleaning trolley (9) for docking with the furnace door (12); The upper cleaning mechanism (2) and the lower cleaning mechanism (7) are respectively installed at the top and bottom of the cleaning door fixing frame (3); The door cleaning frame (5) is installed on the door cleaning fixed frame (3) by a guide elastic adaptation device (4), and is driven by the door cleaning frame drive cylinder (8) to move up and down along the door cleaning fixed frame (3); The cleaning door side scraper (6) and the high-pressure water nozzle (1) are both installed on the cleaning door movable frame (5).

2. The scraper door cleaning device with high-pressure water as described in claim 1, characterized in that, The cleaning device moving cylinder (11) is configured to drive the entire cleaning device to move horizontally along the cleaning trolley track (10) so as to realize the docking or disengagement of the cleaning device with the furnace door (12).

3. A scraper door cleaning device with high-pressure water as described in claim 1, characterized in that, The cleaning frame (5) has an upper limit position and a lower limit position under the drive of the cleaning frame drive cylinder (8); when the cleaning frame (5) reciprocates between the upper limit and the lower limit, it drives the cleaning side scraper (6) and the high-pressure water nozzle (1) to clean the side of the furnace door (12).

4. A scraper door cleaning device with high-pressure water as described in claim 1, characterized in that, The guiding elastic adaptation device (4) is connected between the cleaning door fixed frame (3) and the cleaning door movable frame (5), and is configured to enable the cleaning door movable frame (5) to flexibly adapt to the shape change of the furnace door during movement.

5. A scraper door cleaning device with high-pressure water as described in claim 1, characterized in that, The upper cleaning mechanism (2) integrates a scraper and high-pressure water cleaning function, and is configured to first clean the top of the furnace door (12) after the door cleaning device is connected to the furnace door.

6. A scraper cleaning device with high-pressure water as described in claim 1, characterized in that, The lower cleaning mechanism (7) is configured to clean the bottom and bottom edge of the furnace door (12) when the door cleaning frame drive cylinder (8) drives the door cleaning frame (5) to the upper limit position.

7. A scraper cleaning device with high-pressure water as described in claim 1, characterized in that, The side scraper (6) and the high-pressure water nozzle (1) are arranged in a spatial position to quickly clean the furnace door bricks and spring blade edges of the furnace door (12) by combining mechanical scraping with high-pressure water rinsing.