Electrically driven door cleaning device

Abstract

The utility model discloses an electric drive stove door cleaning device, including clearing door trolley track frame, by three in one reduction motor through rack and pinion drive's clearing door trolley and the support frame fixed on it, the profiling track is established on the support frame, and the chain is fixed with the cleaning scraper outside the chain, and the annular sliding is driven through another three in one reduction motor. Adopt double motor independent drive architecture, and the longitudinal displacement of clearing door trolley is separated control with the scraper annular cleaning action, and all stove door area is accurately covered, and the profiling track and sleeve roller chain combination structure realize corner cleaning zero blind area through closed loop chain and matching track curvature design, and the all -electric drive system adopts low -temperature protection motor, and the low -temperature failure problem is solved by replacing hydraulic system, and mechanical transmission efficiency is promoted, and the failure rate is reduced. The device breaks through the operation limit of prior art under extreme environment, realizes full -automatic cleaning of coke oven door full surface, reduces manual intervention and improves production environment significantly.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical coking technology, specifically to an electrically driven furnace door cleaning device, which is applied to coke oven mechanical pushers, coke blocking machines, and tamping coal charging pushers. Background Technology

[0002] During the metallurgical coking process, tar, dust, and other impurities adhere to the furnace door. If not cleaned promptly, this can cause the door to not seal properly against the furnace frame the next time it is closed, resulting in a large amount of flue gas escaping and severely polluting the environment. It also draws outside air into the carbonization chamber, leading to a decline in the quality of subsequent chemical products. Therefore, a well-designed furnace door cleaning system is a crucial element for the normal operation of a coke oven.

[0003] The existing door cleaning device uses a scraper, which makes it difficult to effectively clean debris at the four corners of the furnace door. The new circular cleaning mechanism uses a mechanical scraper, while the corners utilize a cable chain structure. The cable chain adopts a contoured track + chain roller structure, similar to the previous design, to cover every corner of the furnace door, achieving comprehensive cleaning. Coke oven machinery is used outdoors, and the existing door cleaning devices are driven by hydraulic cylinders. In northern regions where winter temperatures drop to -40℃ and average winter temperatures fall below -20℃, the hydraulic system is difficult to use effectively, often resulting in operational failures. Summary of the Invention

[0004] To address the aforementioned technical problems, an electrically driven furnace door cleaning device is provided. The furnace door cleaning mechanism employs a mechanical scraper for cleaning, and a drag chain structure is used at the corners of the furnace door. The drag chain adopts a contoured track + chain roller structure, which can cover every corner of the furnace door. It operates using a three-in-one geared motor + gear + rack structure to achieve comprehensive cleaning of the furnace door.

[0005] The technical means adopted in this utility model are as follows: An electrically driven furnace door cleaning device includes: The track frame of the cleaning trolley fixed on the coke oven machinery; A door cleaning trolley that slides along the track frame via rollers; A door cleaning support frame fixed on the door cleaning trolley; A contour track fixed to the support frame; A sleeve roller chain, wherein the sleeve is clamped in the channel between the inner and outer rails of the contour track, and the chain has a closed structure with the head and tail connected. A cleaning scraper fixed to the outer chain plate; The door cleaning trolley drive mechanism drives the door cleaning trolley to move back and forth along the track; The cleaning scraper drive mechanism drives the chain to slide in a ring along the contour track.

[0006] This technical solution integrates all core functional modules, replaces the existing hydraulic drive method with an electric drive system to solve the problem of poor reliability in low-temperature environments, and achieves full-area coverage cleaning of the furnace door through a ring chain structure. It provides an electric drive furnace door cleaning device that can operate stably in extremely cold environments of -40℃. The dual-motor drive architecture realizes the separate control of the longitudinal displacement of the trolley and the ring cleaning of the scraper, ensuring the cleanliness of complex areas such as the corners of the furnace bricks and the web plate.

[0007] Furthermore, the door cleaning trolley drive mechanism includes: The door cleaning trolley is fixed on the track frame; the door cleaning trolley is driven by a three-in-one geared motor. The door cleaning trolley drive gear is fixed to the output shaft of the three-in-one reduction motor of the door cleaning trolley drive; The cleaning trolley drive rack, fixed on the cleaning trolley, meshes with the cleaning trolley drive gear to achieve linear transmission.

[0008] Furthermore, the cleaning scraper drive mechanism includes: The cleaning scraper fixed on the support frame is driven by a three-in-one geared motor. The sweeping scraper drive gear is fixed to the output shaft of the three-in-one reduction motor for sweeping scraper drive; The cleaning scraper drive rack fixed to the chain meshes with the cleaning scraper drive gear to drive the chain in a circular motion.

[0009] This technical solution achieves precise linear displacement control of the cleaning trolley through a gear and rack transmission mode, replacing the hydraulic drive system in the existing technology that is susceptible to low temperatures. The linear transmission system of the motor can achieve a mechanical energy transmission efficiency of over 90% and does not rely on oil medium, significantly improving reliability in environments of -40℃ and shortening equipment response time.

[0010] Furthermore, the inner and outer rail spacing of the contour track matches the sleeve diameter of the sleeve roller chain, and arc-shaped guide sections are provided at both ends of the track to cover the corner area of ​​the furnace door.

[0011] This technical solution fits the axial curvature of the contour track to the furnace door corner profile, ensuring that the movement trajectory of the sleeve roller chain is perfectly matched with the geometric profile of the furnace door. Through track design, adaptive guidance can be achieved when the scraper moves along the arc corner of the furnace door, without mechanical interference, reducing the cleaning blind zone to zero and improving the efficiency of removing tar adhesion.

[0012] Furthermore, the axes of the cleaning trolley drive gear and the cleaning scraper drive gear are vertically distributed, thereby achieving separate control of the longitudinal movement and lateral cleaning of the device.

[0013] This technical solution adopts a dual-motor drive system with a vertical axis layout, which realizes absolutely independent control of longitudinal and lateral drive, and the motor movements do not interfere with each other. It supports the composite action mode preset by the cleaning program (such as longitudinal movement + vertical lifting), and the operation accuracy is improved compared with the hydraulic cylinder linkage system.

[0014] Furthermore, the sweeping scraper drive three-in-one geared motor and the door cleaning trolley drive three-in-one geared motor meet the IP65 protection level and maintain continuous operation capability within a temperature range of -40℃ to +50℃.

[0015] This technical solution selects motor products that meet special environmental conditions, ensuring that the electric drive unit maintains continuous operation capability under extreme conditions. The IP65 protection rating and -40℃ low temperature resistance design enable the unit to work uninterruptedly in coke oven environments with large internal and external temperature differences, reducing the failure downtime rate.

[0016] This utility model has the following advantages compared with the prior art: 1) The door cleaning trolley is driven by a geared motor, which is fixed to the trolley's track frame. The output end of the geared motor is fixed with gears, and the rack is fixed to the trolley. The rotation of the gears drives the trolley to move back and forth. Using electric drive instead of a hydraulic system solves the problem of ineffective cleaning of coke oven doors in northern regions during winter.

[0017] 2) The cleaning scraper is fixed on the sleeve roller chain. The chain is a closed chain with the head and tail connected. Each link can slide together. The link is fixed with a rack. The cleaning scraper drives the gears through a three-in-one reduction motor. The gears drive the chain to move in the contour track.

[0018] 2) At the same time, the process of the door cleaning device is optimized. A ring chain + scraper structure is used. The door cleaning scraper is fixed on the ring chain, which solves the problem that the door cleaning head cannot clean the four corners of the furnace door. This device can clean the coke oven door from all directions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0021] Figure 2 This is a schematic diagram of the working state of this utility model. Figure 1 .

[0022] Figure 3 This is a schematic diagram of the working state of this utility model. Figure 2 .

[0023] Figure 4 for Figure 1 A diagram illustrating the movement of BB towards the trolley.

[0024] Figure 5 for Figure 1 A schematic diagram of the CC-direction contouring track and chain.

[0025] Figure 6 This is a schematic diagram of the cleaning scraper and chain of this utility model.

[0026] Figure 7 This is a schematic diagram of the drive rack and chain of this utility model.

[0027] In the diagram: 1. Door cleaning trolley track frame; 2. Door cleaning trolley; 3. Door cleaning support frame; 4. Contouring track; 5. Sleeve roller chain; 6. Sweeping scraper; 7. Door cleaning trolley drive three-in-one geared motor; 8. Door cleaning trolley drive gear; 9. Door cleaning trolley drive rack; 10. Sweeping scraper drive three-in-one geared motor; 11. Sweeping scraper drive gear; 12. Sweeping scraper drive rack. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, 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 application or its application or use. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] 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 this application. 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.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. 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.

[0032] In the description of this application, 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 usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application 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 application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "over," "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 figures 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 figures. For example, if the device in the figures is inverted, a device described as "above" or "above" 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.

[0034] 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 cannot be construed as limiting the scope of protection of this application.

[0035] like Figure 1 and Figure 2 As shown, an electrically driven furnace door cleaning device mainly includes: a door cleaning trolley track frame 1, a door cleaning trolley 2, a door cleaning support frame 3, a contour track 4, a sleeve roller chain 5, a cleaning scraper 6, a door cleaning trolley drive three-in-one reduction motor 7, a door cleaning trolley drive gear 8, a door cleaning trolley drive rack 9, a cleaning scraper drive three-in-one reduction motor 10, a cleaning scraper drive gear 11, and a cleaning scraper drive rack 12.

[0036] like Figure 1-2 As shown, the positional relationship of the components of the whole machine is as follows: the cleaning trolley track frame 1 is the basic equipment of the cleaning device and is fixed on the mechanical equipment; the cleaning trolley 2 runs on the cleaning trolley track frame 1 along the track via rollers; the cleaning support frame 3 is fixed on the cleaning trolley 2; the contour track 4 is fixed on the cleaning support frame 3; the sleeve roller chain 5 slides in the channel between the inner and outer tracks of the contour track 4 through its sleeve clamp; the sleeve roller chain 5 is a closed chain with its head and tail connected, and each link can slide together; the cleaning scraper 6 is fixed to the sleeve through the chain pin. The roller chain outer chain plate; the cleaning trolley drive three-in-one reduction motor 7 is fixed on the cleaning trolley track frame 1; the cleaning trolley drive gear 8 is fixed on the output shaft of the cleaning trolley drive three-in-one reduction motor 7; the cleaning trolley drive rack 9 is fixed on the cleaning trolley 2 and moves with the cleaning trolley 2; the sweeping scraper drive three-in-one reduction motor 10 is fixed on the cleaning support frame 3; the sweeping scraper drive gear 11 is fixed on the output shaft of the sweeping scraper drive three-in-one reduction motor 10; the sweeping scraper drive rack 12 is fixed on the sleeve roller chain 5 by a pin. Part numbers 3 to 12 all run together with the cleaning trolley 2.

[0037] like Figure 2 Figure 3 shows the cleaning status diagram of the sweeping scraper. Figure 2 The sweeping scraper drives the three-in-one reduction motor 10 to rotate counterclockwise, and the sweeping scraper drive gear 11 meshes with the sweeping scraper drive rack 12 fixed on the left and right sleeve roller chains 5 to realize the up and down sliding of the left and right chains. Figure 3 The sweeping scraper drives the three-in-one reduction motor 10 to rotate clockwise, and the sweeping scraper drive gear 11 meshes with the sweeping scraper drive rack 12 fixed on the left and right sleeve roller chains 5, realizing the up and down sliding of the left and right chains.

[0038] like Figure 4 The diagram shown is a schematic of the movement of the BB trolley, illustrating the positional relationship between the cleaning trolley 2, the cleaning trolley drive three-in-one reduction motor 7, the cleaning trolley drive gear 8, and the cleaning trolley drive rack 9.

[0039] like Figure 5 As shown in the schematic diagram of CC contour track and chain, the sleeve roller chain 5 slides in the channel between the inner and outer tracks of the contour track 4 through its sleeve clamp.

[0040] like Figure 6 As shown in the diagram, the cleaning scraper 6 is fixed to the outer chain plate of the roller chain via a chain pin.

[0041] like Figure 7 As shown in the schematic diagram of the drive rack and chain, the cleaning scraper 6 is fixed to the outer chain plate of the bushing roller chain by a chain pin, and the cleaning scraper drive rack 12 is fixed to the chain plate on the other side of the bushing roller chain by a chain pin.

[0042] The specific working process of an electrically driven furnace door cleaning device is as follows: Step 1: The cleaning trolley track frame 1 is fixed on the coke oven machinery. After the door removal mechanism on the coke oven machinery removes the oven door and returns it to the cleaning position, the cleaning trolley drive three-in-one reduction motor 7 is started to rotate. The cleaning trolley drive gear 8 fixed on the cleaning trolley drive three-in-one reduction motor 7 also rotates together. The cleaning trolley drive gear 8 drives the cleaning trolley to move along the track 2 by meshing with the cleaning trolley drive rack 9. After moving to the cleaning position, the cleaning trolley drive three-in-one reduction motor 7 stops.

[0043] Step 2: After the cleaning trolley drive three-in-one geared motor 7 stops, start the sweeping scraper drive three-in-one geared motor 10, as follows. Figure 2 As shown, the sweeping scraper is started, and the three-in-one geared motor 10 rotates counterclockwise.

[0044] Step 3: The cleaning scraper drive gear 11, which is fixed on the cleaning scraper drive three-in-one reduction motor 10, rotates, driving the cleaning scraper drive rack 12 located on both sides to move. The cleaning scraper drive rack 12 is fixed on the sleeve roller chain 5, which in turn drives the sleeve roller chain 5 to slide in a ring along the channel between the contour track 4. The cleaning scraper 6, which is fixed to the sleeve roller chain 5 at fixed intervals, cleans the furnace door in a ring, and at the same time cleans the debris at the corner of the furnace door.

[0045] Step 4: After the sweeping scraper 6 moves to a fixed position (controlled by a limit switch or the built-in rotary encoder of the motor), the sweeping scraper drives the three-in-one reduction motor 10 to stop running and start to rotate clockwise, repeating the actions performed in step 3.

[0046] Step 5: Repeat steps 3 and 4 three times to complete the furnace door cleaning. Start the cleaning trolley drive three-in-one reduction motor 7 to rotate in the opposite direction and return the cleaning trolley 2 to its original position.

[0047] 6. Complete one work cycle.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 this application.

Claims

1. An electrically driven furnace door cleaning device, characterized in that, include: (1) The track frame of the cleaning trolley fixed on the coke oven machinery equipment; Cleaning trolley (2) slides along the track frame (1) via rollers; Cleaning support frame (3) fixed on the cleaning trolley (2); The contour track (4) is fixed on the support frame (3); A sleeve roller chain (5) has its sleeve clamped in the channel between the inner and outer rails of the contour track (4), and the chain (5) is a closed structure with the head and tail connected. A cleaning scraper (6) is fixed to the outer chain plate of the chain (5); The door cleaning trolley drive mechanism drives the door cleaning trolley (2) to move back and forth along the track; The cleaning scraper drive mechanism drives the chain (5) to slide in a ring along the contour track (4).

2. The electrically driven furnace door cleaning device according to claim 1, characterized in that: The gate clearing trolley drive mechanism includes: The door cleaning trolley is fixed on the track frame (1). The door cleaning trolley is driven by a three-in-one geared motor (7). The door cleaning trolley drive gear (8) is fixed on the output shaft of the door cleaning trolley drive three-in-one reduction motor (7). The cleaning trolley drive rack (9) fixed on the cleaning trolley (2) meshes with the cleaning trolley drive gear (8) to achieve linear transmission.

3. The electrically driven furnace door cleaning device according to claim 2, characterized in that: The cleaning scraper drive mechanism includes: The cleaning scraper is fixed on the support frame (3) and driven by a three-in-one geared motor (10). The cleaning scraper drive gear (11) is fixed on the output shaft of the cleaning scraper drive three-in-one reduction motor (10). The cleaning scraper drive rack (12) fixed on the chain (5) meshes with the cleaning scraper drive gear (11) to drive the chain to move in a ring.

4. The electrically driven furnace door cleaning device according to claim 1, characterized in that: The inner and outer rail spacing of the contour track (4) matches the sleeve diameter of the sleeve roller chain (5), and arc-shaped guide sections are provided at both ends of the track to cover the corner area of ​​the furnace door.

5. The electrically driven furnace door cleaning device according to claim 3, characterized in that: The axes of the cleaning trolley drive gear (8) and the cleaning scraper drive gear (11) are vertically distributed, thereby realizing the separate control of the longitudinal movement and the transverse cleaning of the device.

6. The electrically driven furnace door cleaning device according to claim 1, characterized in that: The sweeping scraper drive three-in-one geared motor (10) and the cleaning trolley drive three-in-one geared motor (7) meet the IP65 protection level and maintain continuous operation capability in the temperature range of -40℃ to +50℃.

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