Anti-blocking device for coke conveying belt

Abstract

The utility model discloses an anti-blocking device for a coke conveying belt, which relates to the technical field of coke conveying equipment, and comprises a blocking shutdown trigger mechanism, a controller and a flash hole arranged on the wall body of a belt chute, the blocking shutdown trigger mechanism seals the flash hole in a normal state, and the blocking shutdown trigger mechanism comprises a baffle, an elastic piece and a limit switch, the upper end of the baffle is rotationally connected to the belt chute, the elastic piece is connected between the belt chute and the baffle, the baffle seals the overflow hole from the outside through the elastic piece, the limiting switch is installed on the belt chute and used for detecting that the baffle rotates to the triggering position due to coke accumulation, and the limiting switch is electrically connected with the controller. When the limit switch is triggered to generate a shutdown signal, the controller receives the shutdown signal and stops the belt running; the coke conveying belt solves the problem of coke accumulation and blockage caused by faults of an existing coke conveying belt.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke conveying equipment technical field especially a coke conveying belt anti -blocking device. BACKGROUND

[0002] The coke produced by the coking plant is transported through the belt conveying system. Due to the factors such as site layout limitation, equipment maintenance convenience and process segmentation requirement, the whole transportation process is usually completed by multiple belt conveyors. Each belt is designed to be inclined, and the coke is transported from the low end of the front end of the belt to the high end of the rear end by motor drive, and then is transferred to the low end inlet of the next belt through the closed belt chute (material guide chute), so that the long-distance transportation of the coke is realized through the multi-stage belt connection, and finally the coke is transported to the destination.

[0003] In this relay type conveying system, if a certain belt stops running due to mechanical failure (such as motor damage, roller jamming, belt slipping, etc.), or the chute between adjacent belts is blocked, deformed or abnormal, if the upstream belt cannot stop in time, the coke will continue to accumulate at the inlet of the fault belt or the inlet of the blocked chute. Due to the hysteresis of manual inspection, the coke blocking problem cannot be found in the first time, resulting in a large amount of coke accumulation. This accumulation phenomenon not only forms material blockage quickly, but also may cause the following problems: 1. The accumulated coke may squeeze and damage the belt support or the chute structure, and even cause the belt to overload and the motor to burn out, greatly increasing the maintenance cost; 2. A large amount of manpower is needed to deal with the blockage, and the fault processing time is more than 6 hours, which significantly prolongs the fault downtime and reduces the production efficiency; 3. The accumulated material may overflow the belt and cause safety hazards; 4. During the cleaning of the accumulated material, the workers may be at risk of high temperature burns because the coke may be heated due to friction during transportation.

[0004] Therefore, timely detection and processing of the faults of the belt and the chute, as well as taking effective preventive measures to reduce the risk of coke accumulation, are crucial for the safe and efficient operation of the coking plant production line. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a coke conveying belt anti-blocking device which can solve the problem of coke accumulation and blockage caused by the fault of the existing coke conveying belt.

[0006] In order to solve the above problems, the utility model adopts the technical scheme: this kind of focus belt anti -blocking device includes the stoppage trigger mechanism of blocking, controller and the overflow hole being set on the wall body of belt chute, the stoppage trigger mechanism of blocking is closed the overflow hole under normality, the stoppage trigger mechanism of blocking includes baffle, elastic member and limit switch, the upper end of baffle is rotatably connected on the belt chute, the elastic member is connected between the belt chute and the baffle, the baffle is closed the overflow hole from outside by the elastic member, the limit switch is installed on the belt chute and is used to detect that the baffle is pushed to rotate to the trigger position due to coke accumulation, the limit switch is electrically connected with controller, when the limit switch is triggered to generate the stoppage signal, the controller receives the stoppage signal and stops the belt operation.

[0007] In the above technical scheme of focus belt anti-blocking device, the more specific technical scheme can also be: the belt chute is provided with two overflow holes on different wall bodies, and each overflow hole is provided with a corresponding stoppage trigger mechanism of blocking.

[0008] In some possible embodiments, the two overflow holes are a first overflow hole and a second overflow hole, the first overflow hole is arranged on a front wall body of the belt chute connected with a conveying belt, and the first overflow hole is located below the conveying belt, and the second overflow hole is arranged on a side wall body adjacent to the front wall body.

[0009] In some possible embodiments, the stoppage trigger mechanism of blocking matched with the first overflow hole is a first stoppage trigger mechanism of blocking, the first stoppage trigger mechanism of blocking includes a first baffle, a first elastic member and a first limit switch, the upper end of the first baffle is fixedly connected with a first baffle rotating shaft, the belt chute is fixedly provided with a first shaft sleeve, and the first baffle rotating shaft is rotatably connected with the first shaft sleeve; the first baffle rotating shaft is connected with a limiting rod extending into the belt chute, the limiting rod is connected with the lower end of the first elastic member, the upper end of the first elastic member is connected with the belt chute, and the first limit switch is installed on the rotating path of the limiting rod.

[0010] In some possible embodiments, the limiting rod is perpendicular to the first baffle rotating shaft and the first baffle.

[0011] In some possible implementation solutions, the material blocking stoppage triggering mechanism matched with the second overflow hole is a second material blocking stoppage triggering mechanism, which comprises a second baffle, a second elastic member and a second limit switch, the upper end of the second baffle is fixedly connected with a second baffle rotating shaft, the belt chute is fixed with a second shaft sleeve, and the second baffle rotating shaft is rotationally connected with the second shaft sleeve; the two ends of the second elastic member are respectively connected with the second baffle and the belt chute; and the sensing end of the second limit switch is located on the rotating path of the second baffle.

[0012] In some possible implementation solutions, the second material blocking stoppage triggering mechanism has two second limit switches, and the two second limit switches are symmetrically arranged on the two sides of the second baffle.

[0013] In some possible implementation solutions, the top of the belt chute is provided with a dust removal pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model discloses a belt chute provided with an overflow hole and a material blocking stoppage triggering mechanism, which can monitor the coke accumulation in the chute in real time, push the baffle through the overflow hole when the coke is accumulated too much, trigger a stoppage signal to the controller, and realize automatic stoppage protection in the initial stage of material blocking.

[0016] 2. Two overflow holes and triggering mechanisms arranged in different directions can adapt to various complex working conditions, including uniform accumulation in the forward direction, lateral partial load accumulation and local sudden overflow, and can respond to overflow in different directions in time, thereby shortening the fault diagnosis time.

[0017] 3. The two overflow holes are arranged at positions covering two key regions of the belt chute, thereby improving the timeliness and accuracy of material blocking detection.

[0018] 4. The belt chute is provided with a dust removal pipe, so that dust can be more effectively collected and treated, the dust removal efficiency is improved, and the working environment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural schematic diagram of the coke conveying belt anti-blocking device.

[0020] Figure 2 Fig. 2 is a front structural schematic diagram of the first blocking stop triggering mechanism.

[0021] Fig. 1 is a structural schematic diagram of the coke conveying belt anti-blocking device. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below in combination with the embodiments of the drawings:

[0023] Figure 1 Fig. 1 is a structural schematic diagram of the coke conveying belt anti-blocking device. Figure 2 The coke conveying belt anti-blocking device shown in Fig. 1 mainly comprises a blocking stop triggering mechanism, a controller and an overflow hole opened on the wall body of the belt chute 2. The belt chute 2 adopts a closed structure design which can buffer and prevent coke dust from polluting the environment. A dust removal pipe for collecting dust generated in the conveying process is installed at the top middle position of the belt chute 2. The belt chute 2 is connected with the conveying belt 4 at the front face. The belt roller 3 in the belt chute 2 is a driven roller. The lower end of the belt chute 2 is connected with the lower chute 12 for discharging coke to the next process. At least one overflow hole is opened on the wall body of the belt chute 2. A blocking stop triggering mechanism is installed at the overflow hole. The mechanism closes the overflow hole in normal state and comprises a baffle, an elastic member and a limit switch. The upper end of the baffle is rotatably connected to the belt chute 2. The elastic member is connected between the belt chute 2 and the baffle, so that the baffle closes the overflow hole from the outside through the elastic member. The limit switch is installed on the belt chute 2 and is used for detecting the rotation of the baffle to the triggering position due to the accumulation of coke. The limit switch is electrically connected with the controller. When the limit switch is triggered to generate a stop signal, the controller receives the signal and stops the belt running.

[0024] In some possible embodiments, two overflow holes are opened on the belt chute 2 and located on different wall bodies. The two overflow holes are respectively a first overflow hole and a second overflow hole. The first overflow hole is arranged on the front wall body of the belt chute 2 connected with the conveying belt 4 and is located below the conveying belt 4. The second overflow hole is arranged on the side wall body adjacent to the front wall body. An independent set of blocking stop triggering mechanism is installed at each overflow hole. The limit switches of the mechanisms are respectively electrically connected with the controller. The specific blocking stop triggering mechanism is a first blocking stop triggering mechanism matched with the first overflow hole and a second blocking stop triggering mechanism matched with the second overflow hole.

[0025] The first blocking stop triggering mechanism mainly comprises a first baffle 8, a first baffle rotating shaft 6, a limiting rod 9, a first elastic member 5 and a first limiting switch 10. The upper end of the first baffle 8 is welded with the first baffle rotating shaft 6, and the first baffle rotating shaft 6 is rotationally connected with a first shaft sleeve 7 fixed on the belt chute 2. The limiting rod 9 is vertically connected with the first baffle rotating shaft 6 at positions close to the two ends of the first baffle rotating shaft 6 and extends into the belt chute 2. The lower end of the limiting rod 9 is connected with the first elastic member 5, and the upper end of the first elastic member 5 is connected with the belt chute 2. The first limiting switch 10 is installed on the rotating path of the limiting rod 9.

[0026] The second blocking stop triggering mechanism is different from the first blocking stop triggering mechanism. The second blocking stop triggering mechanism mainly comprises a second baffle 13, a second baffle rotating shaft 15, a second elastic member 14 and a second limiting switch 11. The upper end of the second baffle 13 is welded with the second baffle rotating shaft 15, and the second baffle rotating shaft 15 is rotationally connected with a second shaft sleeve 16 fixed on the belt chute 2. The two ends of the second elastic member 14 are connected with the second baffle 13 and the belt chute 2, respectively. The sensing end of the second limiting switch 11 is located on the rotating path of the second baffle 13. In this embodiment, two second limiting switches 11 are provided and symmetrically arranged on the two sides of the second baffle 13, forming a double detection guarantee.

[0027] In some possible embodiments, the first elastic member 5 and the second elastic member 14 are both tension springs. By setting a force of the spring on the baffle, the baffle is always tightly attached to the belt chute 2 in the normal state, so that the device is more stable, and the baffle is not easily triggered to stop the interlocking due to device vibration or strong environmental wind.

[0028] When the coke belt conveying system is normally working, each baffle is kept in a closed state under the action of the corresponding elastic member. The coke is conveyed into the belt chute 2 through the conveying belt 4 and then conveyed to the next process through the lower chute 12. When the next process fails to timely convey the coke, the coke will accumulate in the belt chute 2. When the coke accumulates to a certain degree on the front side of the belt chute 2, the first baffle 8 will be squeezed to be flipped upward around the first baffle rotating shaft 6. The rotation of the first baffle 8 drives the limiting rod 9 to touch the first limiting switch 10. When the first limiting switch 10 is triggered to generate a stop signal, the controller receives the stop signal and controls the belt driving motor to stop, thereby stopping the belt from running. If the coke accumulates more on the side of the belt chute, the second baffle 13 will be squeezed to be flipped upward and touch the second limiting switch 11, which also triggers the interlocking stop signal. The controller receives the stop signal and stops the belt from running. The double detection mechanism of the front side and the side ensures that different blocking forms can be timely discovered.

[0029] The coke conveying belt anti-blocking device can timely interlock the belt to stop running when abnormality occurs in the coke conveying process, preventing coke blocking from expanding. Practical application shows that the device can not only accurately identify the blocking condition and realize quick response shutdown, effectively avoiding the extrusion damage of the equipment caused by the accumulation of a large amount of coke, but also significantly reduces the manual cleaning workload during fault handling. Through timely triggering of the shutdown protection, the maintenance personnel can resume production immediately after troubleshooting, shortening the traditional fault handling time of more than 6 hours to within 1 hour, greatly improving the production efficiency. The device not only reduces the waste of human and equipment costs, but also significantly improves the operation safety of the entire conveying system, providing a reliable guarantee for the continuous and stable operation of the coking production.

[0030] The protection scope of the utility model is not limited to the embodiments described in the specification, any modification, equivalent replacement or improvement based on the utility model technical concept, for example, using different structure baffle trigger mechanism, other forms of elastic assembly or signal detection device, as long as the same blocking detection and shutdown protection function is realized, should be considered as falling into the protection scope defined by the utility model claim.

Claims

1. A coke belt anti-blocking device characterized by: The device comprises a blockage shutdown trigger mechanism, a controller and an overflow hole opened on the wall of the belt chute, the blockage shutdown trigger mechanism closes the overflow hole in normal state, the blockage shutdown trigger mechanism comprises a baffle, an elastic member and a limit switch, the upper end of the baffle is rotationally connected to the belt chute, the elastic member is connected between the belt chute and the baffle, the baffle closes the overflow hole from the outside through the elastic member, the limit switch is installed on the belt chute to detect the rotation of the baffle to the trigger position due to the pushing of coke accumulation, the limit switch is electrically connected to the controller, when the limit switch is triggered to generate a shutdown signal, the controller receives the shutdown signal and stops the belt operation.

2. The focus belt anti-blocking device according to claim 1, characterized in that: The belt chute is provided with two overflow holes on different walls, and each overflow hole is provided with a corresponding blockage shutdown trigger mechanism.

3. The focus belt anti-blocking device according to claim 2, characterized in that: The two overflow holes are a first overflow hole and a second overflow hole, the first overflow hole is arranged on the front wall of the belt chute connected to the conveying belt, and the first overflow hole is located below the conveying belt, and the second overflow hole is arranged on the side wall adjacent to the front wall.

4. The focus belt anti-blocking device according to claim 3, characterized in that: The blockage shutdown trigger mechanism matched with the first overflow hole is a first blockage shutdown trigger mechanism, the first blockage shutdown trigger mechanism comprises a first baffle, a first elastic member and a first limit switch, the upper end of the first baffle is fixedly connected with a first baffle rotating shaft, the belt chute is fixedly provided with a first shaft sleeve, and the first baffle rotating shaft is rotationally connected with the first shaft sleeve; the first baffle rotating shaft is connected with a limiting rod extending into the belt chute, the limiting rod is connected with the lower end of the first elastic member, the upper end of the first elastic member is connected with the belt chute, and the first limit switch is installed on the rotating path of the limiting rod.

5. The skid belt anti-jamming device of claim 4, wherein: The limiting rod is perpendicular to the first baffle rotating shaft and the first baffle.

6. The focus belt anti-blocking device according to claim 3, characterized in that: The blockage shutdown trigger mechanism matched with the second overflow hole is a second blockage shutdown trigger mechanism, the second blockage shutdown trigger mechanism comprises a second baffle, a second elastic member and a second limit switch, the upper end of the second baffle is fixedly connected with a second baffle rotating shaft, the belt chute is fixedly provided with a second shaft sleeve, and the second baffle rotating shaft is rotationally connected with the second shaft sleeve; the second elastic member is connected with the second baffle and the belt chute at two ends respectively; and the sensing end of the second limit switch is located on the rotating path of the second baffle.

7. The skid belt anti-jamming device of claim 6, wherein: The second blockage shutdown trigger mechanism has two second limit switches, and the two second limit switches are symmetrically arranged on the two sides of the second baffle.

8. The jamming prevention device for lens carrying belt according to any one of claims 1 to 7, characterized in that: A dust removal pipe is arranged on the top of the belt chute.

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