Automatic cleaning device for oven door of coke oven

Abstract

The utility model provides an automatic cleaning device for an oven door of a coke oven, which relates to the technical field of coke oven smelting, and comprises an inner frame, an outer frame, an outer frame, an upper cover and a lower cover, the knife rest is movably arranged in the containing space, and a plurality of scrapers used for cleaning the furnace door are arranged on the knife rest; the driving mechanism is arranged on the inner frame, the driving mechanism is connected with the knife rest and drives the knife rest to move back and forth in a cleaning direction, and the multiple scrapers synchronously move along with the knife rest and clean the furnace door. The automatic cleaning device for the oven door of the coke oven can effectively improve the cleaning efficiency of the oven door of the coke oven.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven smelting, in particular to an automatic cleaning device for a coke oven door. Background Art

[0002] During the coking process, when the coal powder is coking in the carbonization chamber, a certain amount of tar and graphite are generated in the gas channels of the knife edges on both sides of the furnace door. At the same time, there will be a certain amount of coal powder in the belly plate of the furnace door knife edge. If it is not removed in time, hard graphite will form on both sides of the furnace door bricks. When it reaches a certain thickness, it will be difficult to reposition the door. The two sides of the knife edge will smoke and catch fire because the furnace door is not in place, which not only damages the furnace door knife edge, but also causes environmental pollution. Therefore, it is very important to clean the furnace door knife edge in time. In the prior art, the furnace door knife edge can be cleaned by manual cleaning, high-pressure water automatic cleaning device, spiral milling cutter cleaning device, etc.

[0003] It is very difficult to clean the edge of the furnace door manually. Each time the furnace door is cleaned, the time is only 2 minutes. The tar and graphite on the furnace door cannot be cleaned up effectively. It accumulates more and more, which not only affects the environmental protection and increases the labor intensity of manual labor, but also seriously restricts the coking production.

[0004] The high-pressure water automatic cleaning device is used to clean the knife edge of the furnace door. The design cost is high, the high-pressure water pump is expensive, and it has high requirements on water quality and strict maintenance technology. The normal operation of the high-pressure water cannot be guaranteed, the damage rate is high, and most coking plants have stopped using it.

[0005] A spiral milling cutter cleaning device is used to clean the edge of the furnace door. The design structure is complex. The spiral milling cutter cleaning device is driven by a hydraulic motor to drive the spiral and a pneumatic device to open and close the clamp. The oil circuit, gas circuit, electrical circuit, and water circuit inside the device are intertwined, making maintenance difficult and the failure rate extremely high. It is also difficult to clean and align the furnace door, and door cleaning failures often occur, affecting production.

[0006] In view of this, the inventor has designed an automatic cleaning device for a coke oven door based on his many years of experience in production design in this field and related fields and after repeated experiments, in order to solve the problems existing in the prior art. Utility Model Content

[0007] The utility model aims to provide an automatic cleaning device for a coke oven door, which can effectively improve the cleaning efficiency of the coke oven door.

[0008] In order to achieve the above-mentioned object, the utility model proposes an automatic cleaning device for a coke oven door, wherein the automatic cleaning device for a coke oven door comprises:

[0009] The inner frame has a containing space, at least one side of which is open;

[0010] A knife holder is movably disposed in the accommodating space, and a plurality of scrapers for cleaning the furnace door are disposed on the knife holder;

[0011] The driving mechanism is arranged on the inner frame, the driving mechanism is connected with the knife holder and drives the knife holder to move back and forth along a cleaning direction, and the plurality of scrapers move synchronously with the knife holder and clean the furnace door.

[0012] The automatic cleaning device for coke oven door as described above, wherein the automatic cleaning device for coke oven door also includes an outer frame, a moving mechanism and an angle adjustment mechanism, the inner frame is movably arranged on the outer frame, the moving mechanism is also arranged on the outer frame and connected to the inner frame, the moving mechanism can drive the inner frame to approach and move away from the oven door, and the angle adjustment mechanism is connected to the outer frame and adjusts the inclination angle of the outer frame.

[0013] The automatic cleaning device for coke oven door as described above, wherein the automatic cleaning device for coke oven door further comprises a control unit, and the control unit is respectively connected to the moving mechanism and the angle adjustment mechanism.

[0014] In the automatic cleaning device for coke oven door as described above, a displacement sensor is provided on the inner frame, the displacement sensor measures the distance from the inner frame to the oven door, the control unit is electrically connected to the displacement sensor and controls the moving mechanism and the angle adjustment mechanism according to the measurement result of the displacement sensor.

[0015] In the automatic cleaning device for coke oven door as described above, a safety baffle is also provided on the outer frame.

[0016] In the automatic cleaning device for coke oven door as described above, the knife holder is movably mounted on the inner frame via a flexible roller chain.

[0017] As described above, the automatic cleaning device for coke oven door, wherein the driving mechanism includes two lifting hydraulic cylinders, the two lifting hydraulic cylinders are respectively arranged on both sides of the tool holder, each lifting hydraulic cylinder is vertically arranged, the cylinder body of the lifting hydraulic cylinder is fixedly connected to the inner frame, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the tool holder.

[0018] As described above, in the automatic cleaning device for the coke oven door, the scraper comprises an elastic telescopic rod and a decoking component, one end of the elastic telescopic rod is connected to the knife holder, and the other end of the elastic telescopic rod is provided with the decoking component.

[0019] In the automatic cleaning device for coke oven door as described above, the decoking component is a steel wire, and the steel wire is wound around the elastic telescopic rod.

[0020] Compared with the prior art, the utility model has the following characteristics and advantages:

[0021] The automatic cleaning device for coke oven door proposed in the utility model drives the knife holder to move back and forth through a driving mechanism, and multiple scrapers arranged on the knife holder can clean the oven door at the same time, thereby reducing manual cleaning operations, reducing labor intensity, and greatly improving the efficiency of oven door cleaning.

[0022] The automatic cleaning device for coke oven doors proposed by the utility model can clean the oven doors quickly and efficiently, bringing great benefits to coking production, significantly reducing smoke and fire, making the oven doors easier and more accurate to align, and making production more stable and smooth.

[0023] The automatic cleaning device for the coke oven door provided by the utility model has a simple structural principle, low manufacturing cost, convenient maintenance, and effectively reduces the failure rate and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0025] Figure 1 This is a front view of the automatic cleaning device for coke oven door proposed by the utility model;

[0026] Figure 2 This is a side view of the automatic cleaning device for coke oven door proposed by the utility model;

[0027] Figure 3 This is a three-dimensional diagram of the automatic cleaning device for coke oven doors proposed by the utility model.

[0028] Description of Reference Numerals

[0029] 100. Automatic cleaning device for coke oven door; 10. Inner frame;

[0030] 20. Knife holder; 21. Scraper;

[0031] 30. External frame; 40. Moving mechanism;

[0032] 50. Displacement sensor; 60. Flexible roller chain;

[0033] 70. Lifting hydraulic cylinder; 80. Safety baffle. DETAILED DESCRIPTION

[0034] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention.

[0035] Unless otherwise specified, the directions of up, down, left, and right mentioned in this document are all based on the directions shown in this utility model. Figure 1 The up, down, left and right directions in the figure shall prevail and are explained here.

[0036] like Figures 1 to 3 As shown, the utility model proposes an automatic cleaning device 100 for a coke oven door, which includes an inner frame 10, a knife holder 20 and a driving mechanism. The inner frame 10 has an accommodating space, at least one side of which is in an open state; the knife holder 20 is movably arranged in the accommodating space, and a plurality of scrapers 21 for cleaning the oven door are arranged on the knife holder 20. The driving mechanism is arranged on the inner frame 10, and the driving mechanism is connected to the knife holder 20 and drives the knife holder 20 to reciprocate along a cleaning direction, and the plurality of scrapers 21 move synchronously with the knife holder 20 and clean the oven door.

[0037] The automatic cleaning device 100 for the coke oven door proposed in the utility model drives the knife holder 20 to move back and forth through a driving mechanism, and multiple scrapers 21 arranged on the knife holder 20 can clean the oven door at the same time, reducing manual cleaning operations, reducing labor intensity, and greatly improving the efficiency of oven door cleaning.

[0038] The automatic cleaning device 100 for the coke oven door proposed in the utility model can clean the oven door quickly and efficiently, bringing great benefits to the coking production, significantly reducing smoke and fire, making the oven door alignment easier and more accurate, and making the production more stable and smooth.

[0039] The coke oven door automatic cleaning device 100 proposed by the utility model has a simple structure principle, low manufacturing cost, convenient maintenance, and effectively reduces the failure rate and maintenance cost.

[0040] In an optional embodiment of the utility model, the automatic cleaning device for the coke oven door further includes an outer frame 30, a moving mechanism 40 and an angle adjustment mechanism, the inner frame 10 is movably arranged on the outer frame 30, the moving mechanism 40 is also arranged on the outer frame 30 and connected to the inner frame 10, the moving mechanism 40 can drive the inner frame 10 to approach and move away from the oven door, and the angle adjustment mechanism is connected to the outer frame 30 and adjusts the inclination angle of the outer frame 30. With the above structure, the distance between the inner frame 10 and the knife holder 20 and the oven door is adjusted by the moving mechanism 40, and the inclination angle of the angle adjustment mechanism and the outer frame 30 (as well as the inner frame 10 and the knife holder 20) is adjusted so that the scraper can be accurately moved to the position of the oven door to be cleaned, so as to achieve accurate cleaning of the oven door and improve the cleaning effect of the oven door.

[0041] In an optional example of this embodiment, the moving mechanism 40 is a moving hydraulic cylinder.

[0042] In an optional example of this embodiment, the coke oven door automatic cleaning device 100 further includes a control unit (not shown in the figure), which is electrically connected to the moving mechanism 40 and the angle adjustment mechanism respectively, and the control unit can realize automatic adjustment of the tool holder 20, thereby realizing automatic operation. The operation is simple and easy for employees to learn, there is no operation failure, and the intelligent control effect is good.

[0043] In an optional example, the control unit is a PLC or a single chip microcomputer.

[0044] In an optional example, a limit switch or a travel switch is provided on the outer frame 30, and the limit switch and the travel switch are electrically connected to the control unit respectively.

[0045] In an optional example, a displacement sensor 50 is provided on the inner frame 10, and the displacement sensor 50 measures the distance from the inner frame 10 to the furnace door. The control unit is electrically connected to the displacement sensor 50, and the control unit controls the moving mechanism 40 and the angle adjustment mechanism according to the measurement result of the displacement sensor 50.

[0046] In an optional example of this embodiment, the angle adjustment mechanism can adopt a method of using a single cylinder to drive a connecting rod for fine adjustment or a method of using a double cylinder to adjust the angle with different propulsion strokes.

[0047] In an optional example of this embodiment, a safety baffle 80 is further provided on the outer frame 30 .

[0048] In an optional embodiment of the present invention, the tool holder 20 is movably mounted on the inner frame 10 via a flexible roller chain 60 .

[0049] In an optional embodiment of the present invention, the driving mechanism includes two lifting hydraulic cylinders 70, which are respectively arranged on both sides of the tool holder 20, each lifting hydraulic cylinder is arranged vertically, the cylinder body of the lifting hydraulic cylinder 70 is fixedly connected to the inner frame 10, and the piston rod of the lifting hydraulic cylinder 70 is fixedly connected to the tool holder 20. With the above structure, the tool holder 20 is driven to move up and down by the lifting hydraulic cylinder 70, that is, the cleaning direction is the vertical direction.

[0050] In an optional example of this embodiment, the stroke of the lifting hydraulic cylinder 70 is 600 mm.

[0051] In an optional embodiment of the present invention, the scraper 21 includes an elastic telescopic rod and a decoking component, one end of the elastic telescopic rod is connected to the knife holder 20, and the other end of the elastic telescopic rod is provided with the decoking component. The elastic telescopic rod has elasticity and can effectively prevent the decoking component from damaging the edge of the furnace door.

[0052] In an optional example of this embodiment, the decoking component is a steel wire, and the steel wire is wound around an elastic telescopic rod.

[0053] Please refer to Figures 1 to 3 Now, the specific implementation process of the coke oven door automatic cleaning device 100 proposed by the utility model is described in detail in conjunction with an embodiment.

[0054] First, the operator operates the door-removing machine to remove the furnace door and rotate the furnace door 90 degrees, and controls the door-removing machine to carry the furnace door into the S track. After entering the predetermined position, the door-removing machine stops.

[0055] Afterwards, the automatic cleaning device 100 for the coke oven door set near the predetermined position starts the moving mechanism 40, and the moving mechanism 40 drives the inner frame 10 to move forward toward the position of the oven door. After the displacement sensor 50 detects the oven door, the control unit controls the moving mechanism 40 to stop, and the scraper 21 extends into the inner side of the knife edge of the oven door. The lifting hydraulic cylinder 70 drives the tool holder 20 to move up and down. The multiple scrapers 21 on the tool holder 20 move up and down synchronously with the tool holder 20 and scrape off the tar and graphite on both sides of the oven door. The angle adjustment mechanism adjusts the front and rear inclination angle of the outer frame 30, thereby driving the tool holder 20 to tilt forward and backward, so as to achieve the effect of fully cleaning the oven door.

[0056] The automatic cleaning device 100 for the coke oven door can be linked with the door taking machine, and the control unit controls the door taking machine at the same time, realizing one-key operation of door cleaning after door taking, automatic intelligent cleaning, and completing the cleaning of the oven door. The logical sequence of the control unit is: door taking machine door cylinder action - door taking machine rotating cylinder - moving mechanism - lifting cylinder - reset.

[0057] The automatic cleaning device 100 for coke oven doors proposed in the utility model solves the problem that tar is generated on the door frame during the production process, resulting in poor sealing of the door after closing, causing smoke and fire, thereby solving the problem of environmental pollution. 3. The cleaning efficiency of the improved door cleaning machine reaches 80%, and the recycling rate reaches more than 90%, which plays a key role in the continuity of coking production.

[0058] The detailed explanation of the above-mentioned embodiments is only intended to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions cannot be interpreted as limitations on the present invention for any reason. In particular, the various features described in different embodiments may also be arbitrarily combined with each other to form other embodiments. Unless there is a clear description to the contrary, these features should be understood to be applicable to any embodiment and are not limited to the described embodiments.

Claims

1. A coke oven door automatic cleaning device, characterized in that: The coke oven door automatic cleaning device comprises: The inner frame has a containing space, at least one side of which is open; A knife holder is movably disposed in the accommodating space, and a plurality of scrapers for cleaning the furnace door are disposed on the knife holder; The driving mechanism is arranged on the inner frame, the driving mechanism is connected with the knife holder and drives the knife holder to move back and forth along a cleaning direction, and the plurality of scrapers move synchronously with the knife holder and clean the furnace door.

2. The automatic cleaning device for coke oven door according to claim 1, characterized in that: The automatic cleaning device for the coke oven door also includes an outer frame, a moving mechanism and an angle adjustment mechanism. The inner frame is movably arranged on the outer frame. The moving mechanism is also arranged on the outer frame and connected to the inner frame. The moving mechanism can drive the inner frame to approach and move away from the oven door. The angle adjustment mechanism is connected to the outer frame and adjusts the inclination angle of the outer frame.

3. The automatic cleaning device for coke oven door according to claim 2, characterized in that: The automatic cleaning device for the coke oven door further comprises a control unit, which is respectively connected to the moving mechanism and the angle adjustment mechanism.

4. The automatic cleaning device for coke oven door according to claim 3, characterized in that: The inner frame is provided with a displacement sensor, which measures the distance from the inner frame to the furnace door. The control unit is electrically connected to the displacement sensor and controls the moving mechanism and the angle adjustment mechanism according to the measurement result of the displacement sensor.

5. The automatic cleaning device for coke oven door according to claim 2, characterized in that: The outer frame is also provided with a safety baffle.

6. The automatic cleaning device for coke oven door according to claim 1, characterized in that: The tool holder is movably mounted on the inner frame via a flexible roller chain.

7. The automatic cleaning device for coke oven door according to claim 1, characterized in that: The driving mechanism includes two lifting hydraulic cylinders, which are respectively arranged on both sides of the tool holder, each lifting hydraulic cylinder is vertically arranged, the cylinder body of the lifting hydraulic cylinder is fixedly connected to the inner frame, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the tool holder.

8. The automatic cleaning device for coke oven door according to claim 1, characterized in that: The scraper comprises an elastic telescopic rod and a decoking component. One end of the elastic telescopic rod is connected to the knife holder, and the other end of the elastic telescopic rod is provided with the decoking component.

9. The automatic cleaning device for coke oven door according to claim 8, characterized in that: The decoking component is a steel wire, and the steel wire is wound around the elastic telescopic rod.

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