A coke oven chamber floor repair brick feeder

Abstract

The utility model discloses a coke oven carbonization chamber furnace bottom maintenance sends the brick ware, including front brick supporting plate, and the front brick supporting plate end is equipped with rear brick supporting plate, and the rear brick supporting plate top is equipped with furnace bottom brick, and rear brick supporting plate both sides are equipped with hinged seat, and hinged seat all insert the pivot, and pivot all with front brick supporting plate end both sides interlink, and the front brick supporting plate bottom is equipped with the push rod laterally, and the push rod is equipped with the mounting seat one end away from the front brick supporting plate, and the mounting seat upper portion lateral rotation inserts the screw rod, and the screw rod is equipped with the cable slow -release subassembly for controlling rear brick supporting plate overturning one end close to the front brick supporting plate. The utility model passes through the hinged structure cooperation cable slow -release subassembly of front brick supporting plate and rear brick supporting plate, has realized the controllable overturning of furnace bottom brick unloading, has avoided the violent dumping of brick, has guaranteed the stable accurate placement of brick in the hot state maintenance process, has eliminated the safety hidden danger of personnel in the high temperature, oxygen deficiency, harmful gas environment operation in traditional mode, has promoted the safety of maintenance operation, has guaranteed the life safety of operating personnel.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical industry technology, and in particular to a brick feeding device for the bottom maintenance of a coke oven carbonization chamber. Background Technology

[0002] Coke ovens are crucial production equipment in the metallurgical industry, primarily used for the dry distillation of coking coal to produce coke under high-temperature, closed conditions. The carbonization chamber is the core of the coke oven, with its bottom constructed of multiple refractory bricks, bearing the heavy pressure and thermal stress of the high-temperature coal. Under prolonged high-temperature operating conditions, the bottom bricks can crack, break, or even detach due to thermal expansion and contraction, chemical erosion, and mechanical wear, severely impacting the normal production and safe operation of the coke oven. Therefore, timely replacement of damaged bottom bricks is a vital aspect of coke oven maintenance.

[0003] Traditional methods for maintaining the bottom of a coke oven's carbonization chamber require stopping production in that chamber and allowing the oven temperature to drop to a safe level before maintenance personnel manually replace the bricks. This method has several drawbacks: First, the shutdown and cooling process takes a considerable amount of time, impacting coke production and causing economic losses. Second, personnel must work in a hot, confined space, resulting in high labor intensity and safety risks. Third, manual handling and installation of the bottom bricks are inefficient and time-consuming. Finally, frequent temperature cycles exacerbate thermal fatigue in the oven structure, shortening equipment lifespan. These problems severely restrict the improvement of coke oven maintenance efficiency and the control of production costs.

[0004] With the increasing demands for continuous and stable production in the coking industry, there is an urgent need to develop a device and method for repairing bottom bricks under hot coke oven conditions. Ideal hot-conditioning repair equipment should possess the following characteristics: safe and reliable operation in high-temperature environments; precise conveying and smooth unloading of bottom bricks; simple and safe operation; and prevention of disruption to normal coke oven production due to repair work. However, current technologies lack effective solutions specifically for hot-conditioning repair of bottom bricks in the coke oven carbonization chamber, necessitating the development of corresponding technical equipment to address this industry challenge. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a brick feeding device for the bottom maintenance of a coke oven carbonization chamber.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A brick feeder for coke oven carbonization chamber bottom maintenance includes a front brick support plate, a rear brick support plate at the end of the front brick support plate, a bottom brick on the top of the rear brick support plate, hinge seats on both sides of the rear brick support plate, a rotating shaft inserted into each hinge seat, and the rotating shafts hinged to both sides of the end of the front brick support plate. A push rod is provided laterally at the bottom of the front brick support plate, and a mounting seat is provided at the end of the push rod away from the front brick support plate. A screw is inserted laterally on the upper part of the mounting seat, and a cable release assembly for controlling the flipping of the rear brick support plate is provided at the end of the screw near the front brick support plate.

[0008] The above technical solution, through the hinged structure of the front and rear brick support plates and the cable slow-release component, enables the controllable flipping and unloading of the furnace bottom bricks, avoiding violent tipping of the bricks and ensuring the stable and accurate placement of the bricks during hot maintenance.

[0009] Preferably, the cable release assembly includes a connecting seat threaded onto the outer circumferential surface of the screw, the lower part of the connecting seat being slidably fitted onto the outer circumferential surface of the push rod, cables being symmetrically fixed at both ends of the connecting seat, and a rack being provided laterally at the end of the cable away from the connecting seat, with a gear meshing at the bottom of each rack, and the gears being fitted onto the outer circumferential surface of the end of the rotating shaft.

[0010] Through the above technical solution, the screw and the connecting seat are connected by a rack and pinion mechanism, which converts the rotational motion into linear motion and then into tilting motion, achieving precise control and slow-release effect of the tilting angle. The operator can stop and maintain any angle at any time.

[0011] Preferably, the outer circumference of the cable is slidably fitted with a rope sleeve, and the rope sleeve is fixedly connected to the front support brick plate.

[0012] Through the above technical solutions, the rope sleeve protects and guides the cable, reduces cable wear in high-temperature environments, extends equipment service life, and ensures the smoothness and reliability of cable transmission.

[0013] Furthermore, each end of the rack is slidably fitted with a sliding sleeve, which is fixedly connected to the front support brick plate.

[0014] Through the above technical solutions, the sliding sleeve provides a smooth sliding guide for the rack, reduces jamming during transmission, improves transmission accuracy and system stability, and ensures the reliability of the flip control.

[0015] Furthermore, a handle is provided at the end of the screw away from the front support brick plate.

[0016] Through the above technical solutions, the handle design facilitates precise control of the screw rotation by the operator, improving the convenience and accuracy of operation. At the same time, it can be used as a push handle during the pushing phase, realizing a dual function.

[0017] Preferably, the top of the mounting base is provided with a pin seat, and a positioning pin is vertically slidably inserted into the pin seat, with the lower part of the positioning pin sliding through the bottom of the screw.

[0018] Through the above technical solution: the positioning pin achieves safe locking of the screw through the pin seat, preventing accidental flipping caused by accidental touch of the handle during the pushing process, eliminating operational safety hazards, and ensuring the separation of pushing and flipping operations.

[0019] Preferably, the bottom ends of the front brick support plate are slidably connected to sliding frames, and the top of the rear brick support plate is symmetrically provided with brick baffles. The brick baffles are triangular and are welded to the rear brick support plate respectively.

[0020] Through the above technical solutions: the sliding frame improves the pushing distance and flexibility of the brick feeder; the triangular brick baffle prevents the bricks from moving backward and provides an observation window; and the design of the front brick support plate being slightly smaller than the bottom bricks facilitates the precise positioning of the bricks and subsequent adjustments.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model, through its mechanized brick feeding and tilting unloading design, allows maintenance personnel to complete the replacement of bottom bricks in a safe area outside the coke oven, without having to enter the high-temperature, sealed carbonization chamber. The positioning pin safety locking mechanism ensures the timing of the pushing and tilting operations is separated, preventing accidents caused by misoperation. This design completely eliminates the safety hazards of personnel working in high-temperature, oxygen-deficient, and hazardous gas environments in traditional maintenance methods, significantly improving the safety of maintenance operations and protecting the lives of workers.

[0023] 2. When using this invention for furnace bottom brick maintenance, there is no need to stop coke oven production or wait for cooling; individual furnace bottom bricks can be replaced hot while the coke oven is operating normally. This avoids production losses caused by traditional maintenance methods and the additional costs of setting up buffer furnaces, ensuring continuous and stable coke production. At the same time, hot maintenance avoids thermal fatigue damage to the furnace structure caused by frequent heating and cooling cycles, extending the service life of the coke oven equipment, fundamentally reducing maintenance costs and improving production efficiency.

[0024] 3. This utility model employs a screw-driven cable release mechanism, utilizing the self-locking characteristic of the threaded transmission to precisely control the tilting angle of the rear brick support plate. Operators can stop the tilting action at any time and maintain any angle, preventing violent tipping and impact of the furnace bottom bricks. The design of the front brick support plate, slightly smaller than the furnace bottom bricks, facilitates precise positioning and fine-tuning after brick unloading, while the observation window of the brick baffle provides real-time status monitoring. This precise and controllable brick unloading method ensures that the furnace bottom bricks are accurately placed in the designated position, improving maintenance quality and the first-time success rate.

[0025] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a brick feeder for the maintenance of the bottom of a coke oven carbonization chamber, as proposed in this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of a brick feeder for the maintenance of the bottom of a coke oven carbonization chamber, as proposed in this utility model.

[0028] Figure 3 This utility model proposes a brick feeder for the maintenance of the bottom of a coke oven carbonization chamber. Figure 1 A magnified schematic diagram of the local structure at point A;

[0029] Figure 4 This utility model proposes a brick feeder for the maintenance of the bottom of a coke oven carbonization chamber. Figure 1 A magnified schematic diagram of the local structure at point B.

[0030] In the diagram: 1. Front brick support plate; 2. Rear brick support plate; 3. Sliding frame; 4. Brick stop plate; 5. Furnace bottom brick; 6. Hinge seat; 7. Rotating shaft; 8. Gear; 9. Rack; 10. Sliding sleeve; 11. Cable; 12. Rope sleeve; 13. Connecting seat; 14. Push rod; 15. Screw; 16. Mounting seat; 17. Handle; 18. Positioning pin; 19. Pin seat. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1

[0033] See attached document Figure 1-4 This utility model provides a specific implementation method for a brick feeder for the maintenance of the bottom of a coke oven carbonization chamber:

[0034] The brick feeder mainly consists of three functional modules: a carrying and transporting mechanism, a brick loading mechanism, and a tilting control mechanism.

[0035] The transport mechanism consists of a front brick support plate 1, a sliding frame 3, and a pusher rod 14. The front brick support plate 1 is made of steel plate and is slightly smaller than the standard size of the bottom bricks to facilitate precise positioning and adjustment after unloading. The sliding frame 3 is welded to both ends of the bottom of the front brick support plate 1. The sliding frame 3 is made of stainless steel tubing and its surface is polished to reduce pushing resistance. The pusher rod 14 is a solid steel bar, horizontally welded to the center of the bottom of the front brick support plate 1, with a handle at its distal end.

[0036] The brick loading mechanism includes a rear brick support plate 2, a hinge seat 6, a rotating shaft 7, a brick baffle plate 4, and a furnace bottom brick 5.

[0037] The rear support plate 2 is made of steel plate and is hinged to the end of the front support plate 1 via a hinge seat 6. The hinge seat 6 is made of cast steel and has a U-shaped structure, and is fixed to both sides of the rear support plate 2 with bolts. The rotating shaft 7 is made of alloy steel and has undergone heat treatment. It is inserted into the shaft hole of the hinge seat 6 and is hinged to the bearing seats on both sides of the end of the front support plate 1, allowing for flexible rotation and strong load-bearing capacity.

[0038] The brick-blocking plate 4 is made of steel plate and is symmetrically welded to both sides of the rear brick-supporting plate 2. The central gap of the brick-blocking plate 4 allows the operator to observe the status of the furnace bottom bricks 5 on the brick feeder in real time. The function of the brick-blocking plate 4 is to prevent the furnace bottom bricks 5 from slipping backward during the pushing process and to ensure that the bricks are stably supported.

[0039] The flipping control mechanism is the core part of this utility model, including screw 15, mounting base 16, handle 17, connecting base 13, cable 11, rack 9, gear 8 and other precisely matched components.

[0040] The screw 15 is horizontally mounted on the end of the push rod 14 away from the front support plate 1 via the mounting base 16. The mounting base 16 is made of cast iron, with an internal bearing to support the rotation of the screw 15, and is externally fixed to the end of the push rod 14 by bolts.

[0041] The handle 17 is made of aluminum alloy and is fixed to the far end of the screw 15 by a key connection. The surface has an anti-slip texture, which makes it easy for the operator to control it precisely.

[0042] The connecting seat 13 is a key transmission component, made of alloy steel, with an internally machined threaded hole to mate with the screw 15, ensuring a precise fit. The lower part of the connecting seat 13 has a through hole, allowing it to slide smoothly onto the outer circumference of the push rod 14, ensuring smooth sliding while preventing excessive clearance from affecting transmission accuracy.

[0043] Cables 11, made of stainless steel wire rope, are symmetrically fixed at both ends of the connector 13. The cables 11 are fixed in the fixing holes at both ends of the connector 13 by crimping, ensuring a firm and reliable connection.

[0044] A rope sleeve 12 is slidably fitted on the outer circumference of the cable 11. The rope sleeve 12 is made of polytetrafluoroethylene and is fixedly connected to the front support brick plate 1 through a bracket, which serves to guide and protect the cable and reduce frictional resistance.

[0045] A rack 9 is horizontally fixed to the end of the cable 11 away from the connecting seat 13. The rack 9 is made of alloy steel, and the tooth surface is hardened to improve wear resistance. The rack 9 is connected to the end of the cable by a pin, and the connection method ensures that it will not loosen under stress.

[0046] A sliding sleeve 10 is provided at the end of the rack 9, which is fixedly connected to the front support brick plate 1 through a bracket, providing a smooth sliding guide for the rack 9.

[0047] The rack 9 has a gear 8 meshing at its bottom, and the gear 8 is made of alloy steel. The gear 8 is connected to the outer circumference of the end of the rotating shaft 7 by a key. The transmission ratio design ensures that the rear brick support plate 2 can achieve precise tilting control within the required range.

[0048] To ensure operational safety, the mounting base 16 is equipped with a pin seat 19 on top, with a chrome-plated surface. The lower part of the positioning pin 18 passes through a pre-drilled pin hole at the bottom of the screw 15. When the positioning pin 18 is inserted, the screw 15 is completely locked and cannot be rotated, ensuring that the flipping mechanism will not be accidentally activated due to accidental contact with the handle 17 during the pushing process.

[0049] Working principle

[0050] A standard-sized bottom brick 5 is placed on the rear brick support plate 2. Since the rear brick support plate 2 is slightly smaller than the bottom brick 5, the edge of the brick will slightly exceed the range of the support plate. However, the triangular structure of the brick baffle plate 4 can effectively prevent the brick from sliding backward. At this time, the positioning pin 18 is in the inserted locking state, the screw 15 cannot rotate, and the entire flipping mechanism is in a safe locked state.

[0051] The operator grips handle 17 as a pushing handle and pushes the entire brick feeder into the coke oven carbonization chamber via push rod 14. The sliding frame 3 slides on the furnace bottom surface, reducing pushing resistance. During pushing, the gap in the center of the baffle plate 4 allows the operator to continuously observe the state of the furnace bottom bricks 5, ensuring the bricks remain stable. Even if handle 17 is accidentally rotated during pushing, the locking action of the positioning pin 18 ensures that the screw 15 will not rotate, preventing accidental activation of the tilting mechanism.

[0052] Once the brick feeder reaches the designated position within the carbonization chamber, the operator pulls upwards on the positioning pin 18 to disengage it from the pin hole of the screw 15, thus releasing the locking state. At this point, the screw 15 can rotate freely, and the flip control mechanism enters the working ready state.

[0053] The operator turns handle 17, and screw 15 begins to rotate. Due to the threaded engagement between screw 15 and connecting seat 13, connecting seat 13 moves along the screw axis, and the direction of movement depends on the rotation direction of the screw. When connecting seat 13 moves away from the front support brick plate 1, the cables 11 fixed at both ends generate tension, which is transmitted to gear 8 through rack 9, driving shaft 7 to rotate.

[0054] The rotation of shaft 7 causes the rear brick support plate 2 to flip downwards around the hinge point. Precise angle control of the rear brick support plate 2 is achieved through a combination of threaded transmission and rack and pinion transmission. Under its own weight, the furnace bottom brick 5 gradually slides to the designated position as the rear brick support plate 2 flips.

[0055] The self-locking characteristic of the threaded drive ensures the controllability of the flipping process. The operator can stop turning the handle 17 at any time as needed, and the rear brick support plate 2 will remain at the current angle and will not continue to flip. This slow-release control mechanism avoids the violent tipping of the furnace bottom bricks 5, ensuring that the bricks can be placed smoothly and accurately in the designated position.

[0056] The selection of materials for each component should take into account the operating conditions in high-temperature environments. Steel components should be made of materials with good high-temperature resistance and oxidation resistance. Surface treatment processes should ensure good corrosion resistance in high-temperature environments.

[0057] Threaded joints should be machined to ensure sufficient precision to guarantee smooth transmission. Appropriate bearings or bushings should be used for hinged joints to ensure flexible rotation. The meshing of gears and racks should be adjusted to a suitable clearance to ensure smooth transmission while preventing excessive wear.

[0058] Regularly check the tightness of all connections and replenish lubrication as needed. Regularly inspect cables for wear or broken strands, and replace them immediately if any problems are found. Keep threaded drive parts clean to prevent dust and debris from affecting transmission accuracy.

[0059] This invention, through ingenious mechanical design, enables hot maintenance of the bottom bricks in the coke oven carbonization chamber, avoiding the safety risks associated with traditional maintenance methods that require shutting down the oven for cooling and personnel entering a high-temperature, confined space. The slow-release flipping mechanism ensures smooth unloading of the bottom bricks, while the positioning pin safety locking mechanism prevents accidents during operation. This device is compact, easy to operate, and safe and reliable, enabling the replacement of individual bottom bricks under normal coke oven production conditions, avoiding production downtime losses, significantly improving maintenance efficiency, and reducing maintenance costs.

[0060] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A brick feeder for coke oven carbonization chamber bottom maintenance, comprising a front brick support plate (1), characterized in that, The front support brick plate (1) is provided with a rear support brick plate (2) at its end. The rear support brick plate (2) is provided with a furnace bottom brick (5) at its top. The rear support brick plate (2) is provided with hinge seats (6) on both sides. The hinge seats (6) are provided with rotating shafts (7). The rotating shafts (7) are hinged to the two sides of the front support brick plate (1). The bottom of the front support brick plate (1) is provided with a push rod (14) laterally. The push rod (14) is provided with a mounting seat (16) at one end away from the front support brick plate (1). The mounting seat (16) is provided with a screw (15) laterally rotatably inserted on its upper part. The screw (15) is provided with a cable release assembly for controlling the flipping of the rear support brick plate (2) at one end near the front support brick plate (1).

2. The brick feeder for coke oven carbonization chamber bottom maintenance according to claim 1, characterized in that, The cable release assembly includes a connecting seat (13) threaded onto the outer circumferential surface of the screw (15). The lower part of the connecting seat (13) is slidably fitted onto the outer circumferential surface of the push rod (14). Cables (11) are symmetrically fixed at both ends of the connecting seat (13). A rack (9) is provided laterally at the end of the cable (11) away from the connecting seat (13). A gear (8) is meshed at the bottom of the rack (9). The gear (8) is fitted onto the outer circumferential surface of the end of the rotating shaft (7).

3. A brick feeder for coke oven carbonization chamber bottom maintenance according to claim 2, characterized in that, The outer circumference of each cable (11) is slidably fitted with a rope sleeve (12), and the rope sleeve (12) is fixedly connected to the front support brick plate (1).

4. A brick feeder for coke oven carbonization chamber bottom maintenance according to claim 3, characterized in that, Each end of the rack (9) is slidably fitted with a sliding sleeve (10), and the sliding sleeve (10) is fixedly connected to the front support brick plate (1).

5. A brick feeder for coke oven carbonization chamber bottom maintenance according to claim 4, characterized in that, The screw (15) has a handle (17) at the end away from the front support brick plate (1).

6. A brick feeder for coke oven carbonization chamber bottom maintenance according to claim 5, characterized in that, The mounting base (16) is provided with a pin seat (19) at the top, and a positioning pin (18) is vertically slidably inserted into the pin seat (19). The lower part of the positioning pin (18) slides through the bottom of the screw (15).

7. A brick feeder for coke oven carbonization chamber bottom maintenance according to claim 6, characterized in that, The front brick support plate (1) has sliding frames (3) slidably connected to both ends of its bottom. The rear brick support plate (2) has symmetrically provided brick baffles (4) on its top. The brick baffles (4) are triangular and are welded to the rear brick support plate (2).

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