Rotary stirring device convenient for dredging coke pusher to return residual coal
By designing a rotary mixing device, the problem of requiring manual assistance in the traditional coke pusher's residual coal return device was solved, realizing automated conveying and rapid unblocking, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional coke pusher car residual coal return devices require manual assistance, which is time-consuming and labor-intensive. Furthermore, when the coal load is large or the coal is damp, it can easily cause blockage of the residual coal return scraper conveyor, affecting the locomotive's operating efficiency.
Design a rotary mixing device for easy unblocking and returning of residual coal from coke pushers, including a residual coal hopper, a mixing module and a scraper conveyor. The mixing module crushes the falling coal and the rotating shaft driven by the motor drives the mixing rod to achieve automated conveying.
It has achieved automation and rapid unblocking of surplus coal return, reduced labor costs, avoided blockages, and ensured the stability and production efficiency of Pingmei operation.
Smart Images

Figure CN224226945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coking technology, specifically a rotary stirring device that facilitates the return of residual coal from a coke pusher. Background Technology
[0002] The four main locomotives of a coke oven are key core equipment for its operation. The coke pusher car, in particular, consists of several parts, including a steel structure, traveling mechanism, pushing mechanism, door retrieval mechanism, and coal leveling and residual coal return mechanism. Each part plays a vital role in ensuring the stable and efficient operation of the coke pusher car. The residual coal return mechanism is an integral part of the coking equipment, designed to address the problem of recovering residual coal generated during the pushing process. This mechanism typically includes residual coal collection, conveying, and storage components, using mechanical or automated means to collect residual coal from the coke pusher car and transport it to a designated location for storage or reuse.
[0003] The return of surplus coal is crucial to the operation of the coke oven pusher's coal leveling unit. The balance between the coal carried out and returned during leveling is critical to the entire operation. Excessive coal loading or damp coal can cause the leveling unit to carry out too much coal, clogging the surplus coal return scraper conveyor and consequently affecting locomotive efficiency and production rhythm. This article introduces a method for unclogging the stirring rods and controlling the surplus coal return device of the coke oven pusher. This device plays a key role in the smooth operation of the coke oven pusher. Traditional surplus coal hoppers only transport coal to designated locations for processing after a certain amount has been reached, requiring manual labor, which is time-consuming, labor-intensive, costly, and unsafe. By modifying the surplus coal return device and optimizing the control process, labor costs can be significantly reduced. Furthermore, this device is easy and quick to operate, providing support for on-site equipment maintenance and smooth production. Utility Model Content
[0004] The purpose of this invention is to provide a rotary mixing device that facilitates the return of residual coal from coke pushers, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary stirring device for facilitating the return of residual coal from a coke pusher, comprising a residual coal hopper located directly below a leveling bar, an stirring module inside the residual coal hopper for crushing the coal falling from the leveling bar, and a scraper conveyor below the discharge port of the residual coal hopper for conveying the crushed coal.
[0006] Preferably, the stirring module includes a rotating shaft that passes through the reinforcing rib at the feed inlet of the waste coal hopper. Multiple stirring rods are installed on the rotating shaft located inside the waste coal hopper. The rotating shaft is driven by a power device outside the waste coal hopper.
[0007] Preferably, the shaft is 1440mm long, and there are 6 stirring rods, which are welded to the shaft in two groups.
[0008] Preferably, the power module includes a platform, a motor, a worm gear reducer fixed on the platform, two bearing seats, and the platform. The platform is located in the middle of the coal hopper and is fixed relative to the coal hopper. The two bearing seats are fixed on the platform and distributed at both ends of the coal hopper. The two ends of the rotating shaft are respectively inserted into the bearing seats, and one end is connected to the motor through the worm gear reducer.
[0009] Preferably, the scraper conveyor is a ring chain scraper conveyor.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This utility model discloses a rotary stirring device that facilitates the return of residual coal from coke pushers. By designing and adding a self-developed residual coal return stirring module, the residual coal return is optimized, the coal loading capacity is increased to ensure smooth coal leveling without blockage, and the optimized control process realizes the automation of the entire process. Attached Figure Description
[0012] Figure 1 This is a top view of the present invention;
[0013] Figure 2 for Figure 1 The front view.
[0014] In the diagram: 1. Scraper conveyor; 2. Platform; 3. Rib plate; 4. Motor; 5. Bearing housing; 6. Worm gear reducer; 7. Coal hopper; 8. Agitator; 9. Shaft; 10. Coal leveling rod. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] The specific implementation steps of this device are as follows:
[0017] 1) Measure the size of the residual coal hopper 7: Measure the size of the residual coal hopper 7 of the coke pusher car residual coal return device, and then make the following rotary stirring device according to the specific size of the residual coal hopper 7.
[0018] 2) Making a rotary stirring module: Make a stirring module according to the size measured in 1). The stirring module consists of a 1440mm long rotating shaft 9 with 6 200mm stirring rods 8 welded on it. The 6 stirring rods 8 are divided into two groups and welded to the rotating shaft 9 at 20-degree angle, 40-degree angle and 60-degree angle respectively.
[0019] 3) The rotary stirring module is built into the residual coal hopper. The rotating shaft 9 passes through the reinforcing plate 3 at the feed inlet of the residual coal hopper 7. The two ends of the rotating shaft 9 protrude to both sides of the residual coal hopper, and bearing seats 5 are installed at both ends of the rotating shaft 9. One end of the bearing seat 5 is connected to the worm gear reducer 6 and is driven by the motor 4.
[0020] 4) The bearing seat 5 of the stirring module and the worm gear reducer 6 are fixed on the platform 2 in the middle of the coal hopper.
[0021] 5) Motor 4 is connected to a 380V power supply and transmitted to the coke pusher control center via PLC.
[0022] 6) Interlocking control between the mixing module and the coal leveling unit.
[0023] Write the control program for the rotary mixing module. After the coke pusher's coal leveling rod advances, the residual coal return scraper 1 starts. At this time, the mixing module at the bottom of the residual coal hopper receives the signal and starts to rotate. When the residual coal scraper 1 stops, the mixing module stops synchronously.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotary stirring device for facilitating the return of residual coal from a coke pusher, comprising a residual coal hopper (7), the residual coal hopper (7) being located directly below a leveling rod (10), characterized in that: The residual coal hopper (7) is equipped with a stirring module, which is used to crush the coal falling on the flat coal bar (10). A scraper conveyor (1) is provided below the discharge port of the residual coal hopper (7), which is used to transport the crushed coal.
2. The rotary stirring device for facilitating the return of residual coal from the coke pusher as described in claim 1, characterized in that: The stirring module includes a rotating shaft (9), which passes through the reinforcing plate (3) at the feed inlet of the coal hopper (7). Multiple stirring rods (8) are installed on the rotating shaft (9) inside the coal hopper (7). The rotating shaft (9) is driven by a power device outside the coal hopper (7).
3. The rotary stirring device for facilitating the return of residual coal from the coke pusher as described in claim 2, characterized in that: The shaft (9) is 1440mm long, and there are 6 stirring rods (8), which are welded to the shaft (9) in two groups.
4. The rotary stirring device for facilitating the return of residual coal from the coke pusher as described in claim 3, characterized in that: The power unit includes a platform (2), a motor (4), a worm gear reducer (6) fixed on the platform (2), two bearing seats (5) and the platform (2). The platform (2) is located in the middle of the coal hopper (7) and is fixed relative to the coal hopper (7). The two bearing seats (5) are fixed on the platform (2) and distributed at both ends of the coal hopper (7). The two ends of the rotating shaft (9) are respectively inserted into the bearing seats (5), and one end is connected to the motor (4) through the worm gear reducer (6).
5. The rotary stirring device for facilitating the return of residual coal from the coke pusher as described in claim 1, characterized in that: The scraper conveyor (1) is a ring chain scraper conveyor.