Automatic coal blending device for coke production

Abstract

The utility model discloses a kind of automatic coal blending devices for coke production, it is related to coal blending device technical field, including conveying device, weight measurement component, the outside of conveying device is equipped with support frame, the weight measurement component is located on support frame, conveying belt is provided on the conveying device, the top of support frame is connected with the fixed frame located in the both sides of conveying belt, the fixed frame is located in the weight measurement component side close to incoming material, the top of fixed frame is connected with the connecting frame of symmetrical arrangement, slidingly connected with moving frame in the inside of connecting frame.The utility model of a kind of automatic coal blending devices for coke production, conveying belt can be played to the role of correction, avoid the situation that weight detection is influenced due to conveying belt offset, simultaneously, so that coal can be kept in the middle on conveying belt, improve the precision when weight detection, improve the control ability when automatic coal blending.

Description

Technical Field

[0001] This utility model relates to the field of coal blending equipment technology, and more specifically to an automatic coal blending equipment for coke production. Background Technology

[0002] In top-loading coke ovens, a coal conveyor belt is used to transport raw materials into the furnace during coke production. The conveyor belt is equipped with an automatic coal distribution device that detects the weight of the coal on the belt, along with its speed, to determine the current weight of the coal. The conveyor belt speed is controlled based on the required coal weight, thus automatically controlling the coal delivery amount.

[0003] Chinese patent application number 2023212264819 discloses a belt scale for measuring coal. The structure includes a frame, a weighing rod, a load cell, a conveyor belt, and weighing idlers. The conveyor belt transports coal and is located above the weighing idlers. The bottom of the weighing idlers is connected to the weighing rod. The load cell is located above the weighing rod and its two ends are connected to the frame. The scale also includes a first protective cover, which covers the load cell. The two ends of the first protective cover are located on either side of the load cell and are both connected to the top of the weighing rod. A lifting gap is formed between the top of the first protective cover and the top of the load cell. However, the above patent has the following problems in use:

[0004] 1. When receiving coal, the conveyor belt on the coal blending device will impact the conveyor belt due to the different sizes of the coal. This will cause the conveyor belt to deviate. In addition, the different wear conditions of the rollers and idlers will also cause the conveyor belt to run off-track. When the off-track conveyor belt moves to the weighing position, it will affect the accuracy of the bottom weighing device, thereby affecting the accuracy of automatic coal blending.

[0005] 2. Coal falling on the conveyor belt may be unevenly distributed. When the accumulated coal is biased to one side, it will cause uneven force on the conveyor belt, which will cause the conveyor belt to run off-track, affecting the weight detection device at the bottom and affecting the automatic coal blending during production.

[0006] Therefore, it is necessary to propose an automatic coal blending device for coke production to solve the above problems. Utility Model Content

[0007] To address the above problems, this utility model provides an automatic coal blending device for coke production. It has the function of preventing the conveyor belt edge from deviating, and at the same time, it has the function of pushing the material located at the edge towards the center, so that the coal accumulates in the middle position, improving the accuracy of weight detection and increasing the efficiency of automatic coal blending.

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] An automatic coal blending device for coke production includes a conveying device and a weight measuring component. The conveying device is externally supported by a support frame, and the weight measuring component is located on the support frame. A conveyor belt is installed on the conveying device. Fixed frames located on both sides of the conveyor belt are connected to the top of the support frame. The fixed frames are located on the side of the weight measuring component closer to the incoming material. Symmetrically arranged connecting frames are connected to the top of the fixed frames. A movable frame is slidably connected inside the connecting frames. The movable frame and the connecting frames are connected by a spring. A straightening roller is rotatably connected to the side of the movable frame away from the spring. The straightening roller contacts the side of the conveyor belt.

[0010] An intermediate plate is connected between the two movable frames. An extension plate is connected to the side of the intermediate plate near the conveyor belt. A rotating disk is rotatably connected to the extension plate. A baffle is connected to the outer ring surface of the rotating disk. A rotation drive device is externally connected to the rotating disk.

[0011] Preferably, the weight measuring component is provided with a load-bearing bracket, and the load-bearing bracket is connected with end rollers and intermediate rollers, with the end rollers located at both ends of the intermediate rollers.

[0012] Preferably, a fixed ring is provided at one end of the end idler roller, and a movable ring is slidably connected to the outer wall of the end idler roller. The movable ring and the fixed ring are connected by a spring, and the movable ring is in contact with the edge of the conveyor belt.

[0013] Preferably, a motor is connected to the side of the intermediate plate away from the extension plate, and the output end of the motor is connected to the rotating disk through a chain drive structure.

[0014] Preferably, the outer wall of the straightening roller is recessed in the middle, and the edge of the conveyor belt is located in the recessed area.

[0015] Preferably, the upper and lower ends of the connecting frame are provided with sliding grooves, and the movable frame is slidably connected in the sliding grooves.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This device is equipped with a straightening roller and a rotating disk before the weight measuring component, which can straighten the conveyor belt and prevent the weight detection from being affected by the conveyor belt deviation. At the same time, it can push the coal material located on the edge towards the center, so that the coal can be kept in the center on the conveyor belt, which improves the accuracy of weight detection and enhances the control capability during automatic coal blending.

[0018] 2. This device is equipped with a moving ring component on the end idler roller, which has the function of pushing the conveyor belt towards the middle area, avoiding the conveyor belt from deviating when moving in the detection area, improving the accuracy of detection, and at the same time, improving the stability of conveying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the conveying device and weight measuring component structure in this utility model;

[0020] Figure 2 This is a schematic diagram of the support frame and fixing frame structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the support frame and load-bearing bracket structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the conveyor belt and rotating disc structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the movable frame and straightening roller structure in this utility model;

[0024] Figure 6 This is a schematic diagram of the end roller and moving ring structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the weight measuring component located on the support frame in this utility model.

[0026] Figure label:

[0027] 101. Support frame; 102. Conveyor belt; 103. Fixed frame; 104. Connecting frame; 105. Moving frame; 106. Spring; 107. Straightening roller; 108. Intermediate plate; 109. Extension plate; 110. Rotary disc; 111. Baffle; 112. Load-bearing bracket; 113. End idler roller; 114. Intermediate idler roller; 115. Fixed ring; 116. Moving ring; 117. Motor; 118. Chain drive structure; 119. Slide groove; 120. Fixed idler roller. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-7An automatic coal blending device for coke production includes a conveying device and a weight measuring component. The weight measuring component detects the weight of the passing coal material and transmits the detected weight information to the conveying device. The conveying device automatically blends coal by adjusting its speed. A faster rotation speed results in a larger amount of coal being added, while a slower rotation speed results in a smaller amount of coal being added. The conveying device has an external support frame 101, on which the weight measuring component is located. A conveyor belt 102 is mounted on the conveying device. Fixed frames 103 located on both sides of the conveyor belt 102 are connected to the top of the support frame 101. The fixed frames 103 are located on the side of the weight measuring component closer to the incoming material. The moving material first passes through a rotating disc 110 before moving to the weighing area. Symmetrically arranged connecting frames 104 are connected to the top of the fixed frames 103. A movable frame 105 is slidably connected inside the connecting frames 104. The movable frame 105 and the connecting frames 104 are connected by a spring 106. The spring 106 pushes the movable frame 105 toward the conveyor belt 102. A straightening roller 107 is rotatably connected to the side of the movable frame 105 away from the spring 106. The spring 106 pushes the movable frame 105 toward the conveyor belt 102. The straightening rollers 107, which are symmetrical at both ends, will clamp toward the middle, so that the conveyor belt 102 will be kept in the center. The straightening roller 107 contacts the side of the conveyor belt 102. The axis of the straightening roller 107 is perpendicular to the edge plane of the conveyor belt 102, which maximizes the contact area between the straightening roller 107 and the edge of the conveyor belt 102 and increases the force on the conveyor belt 102.

[0030] An intermediate plate 108 is connected between the two movable frames 105. An extension plate 109 is connected to the side of the intermediate plate 108 closest to the conveyor belt 102. The extension plate 109 extends above the edge of the conveyor belt 102 but does not contact the surface of the conveyor belt 102. A rotating disk 110 is rotatably connected to the extension plate 109. The rotating disk 110 drives the baffles 111 on its outer wall to rotate, pushing the material accumulated at the edge of the conveyor belt 102 toward the center. The baffles 111 are connected to the outer ring surface of the rotating disk 110. The rotating disk 110 is externally driven by a rotating drive device, which drives the rotating disk 110 to rotate, thereby pushing the material at the edge toward the center of the conveyor belt 102. It should be noted that even if coal falls onto the rotating disk 110, it will be affected by the conveyed coal and fall back onto the conveyor belt 102. Since it is located before the weight measuring component, it will not affect the weight detection.

[0031] refer to Figure 2When the conveyor belt 102 transports material to the right, the rotating disk 110 at the top rotates counterclockwise. At this time, the material on the edge comes into contact with the baffle 111, which pushes the material towards the center of the conveyor belt 102. This ensures that most of the material accumulates in the center, preventing the conveyor belt 102 from shifting due to material accumulation on the edge, thus improving the accuracy of the weight measurement component. As it continues to move, it will move into the detection area. It is important to note that the conveyor belt 102 is typically not piled with excessive material to avoid leakage. The rotating disk 110's function is to push the material on the edge towards the center.

[0032] Specifically, refer to Figure 6 The weight measuring component is equipped with a load-bearing bracket 112. The weight measuring component is an existing weight detection device, preferably an ICS-20 belt scale. The load-bearing bracket 112 is connected to end idlers 113 and intermediate idlers 114, providing support for the conveyor belt 102. The end idlers 113 are located at both ends of the intermediate idlers 114. The support for the conveyor belt 102 is provided by fixed idlers 120 and weighing idlers. The fixed idlers 120 support the conveyor belt 102 and are fixed to a fixed structure. (Weighing idler reference) Figure 6 Installed on the weight measuring component, when the material moves into the detection area, the weighing roller on the weight measuring component will move downward, thereby detecting the weight.

[0033] Specifically, refer to Figure 6 One end of the end roller 113 is provided with a fixed ring 115, which is fixedly connected to the end roller 113 and has a gap with the conveyor belt 102. A movable ring 116 is slidably connected to the outer wall of the end roller 113. The movable ring 116 and the fixed ring 115 are connected by a spring 106. The spring 106 pushes the movable ring 116 towards the conveyor belt 102, which clamps the conveyor belt 102 towards the center. The movable ring 116 contacts the edge of the conveyor belt 102. Although the straightening roller 107 has the function of straightening the conveyor belt 102, there will still be deviation during the movement within the weight detection area. The movable ring 116 on the end roller 113, which has a squeezing effect, can keep the conveyor belt 102 centered when moving within the weighing area, thereby improving the accuracy of the detection.

[0034] Specifically, refer to Figure 5A motor 117 is connected to the side of the intermediate plate 108 away from the extension plate 109. The motor 117 drives the rotating disk 110 to rotate. The output end of the motor 117 and the rotating disk 110 are connected through a chain transmission structure 118. A protective cover is provided on the chain transmission structure 118 and the motor 117 to provide protection.

[0035] Specifically, refer to Figure 5 The outer wall of the straightening roller 107 is recessed in the middle, and the edge of the conveyor belt 102 is located in the recessed area, which has the function of positioning the edge of the conveyor belt 102.

[0036] Specifically, refer to Figure 5 The connecting frame 104 has sliding grooves 119 at both the upper and lower ends. The sliding grooves 119 have a guiding function, which allows the moving frame 105 to move toward the position of the conveyor belt 102. The moving frame 105 is slidably connected in the sliding grooves 119, which improves the stability during movement.

[0037] When transporting coal, the material falls onto the conveyor belt 102. When the material is unevenly distributed, the conveyor belt 102 may shift, affecting the accuracy of the weight measurement component when detecting the weight. When the material moves to the rotating disk 110, it will be pushed towards the middle of the conveyor belt 102 by the rotating disk 110, so that most of the material accumulates in the middle position, which can improve the accuracy of detection.

[0038] When passing over the end idler roller 113, the moving ring 116 on the end idler roller 113 is pushed towards the center position by the spring 106, which is used to maintain the position of the conveyor belt 102 when moving within the detection area and avoid positional deviation that would affect the measurement accuracy. The weight measuring component is connected to the speed control device of the conveying device, and by controlling the speed, it plays a role in automatically controlling the coal blending.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An automatic coal blending device for coke production, comprising a conveying device and a weight measuring component, wherein a support frame (101) is provided on the outside of the conveying device, the weight measuring component is located on the support frame (101), and a conveyor belt (102) is provided on the conveying device, characterized in that: The top of the support frame (101) is connected to a fixed frame (103) located on both sides of the conveyor belt (102). The fixed frame (103) is located on the side of the weight measuring component closer to the incoming material. The top of the fixed frame (103) is connected to a symmetrically arranged connecting frame (104). A movable frame (105) is slidably connected inside the connecting frame (104). The movable frame (105) and the connecting frame (104) are connected by a spring (106). A straightening roller (107) is rotatably connected to the side of the movable frame (105) away from the spring (106). The straightening roller (107) is in contact with the side of the conveyor belt (102). An intermediate plate (108) is connected between the two movable frames (105). An extension plate (109) is connected to the side of the intermediate plate (108) near the conveyor belt (102). A rotating disk (110) is rotatably connected to the extension plate (109). A baffle (111) is connected to the outer ring surface of the rotating disk (110). The rotating disk (110) is externally connected to a rotation drive device.

2. The automatic coal blending device for coke production according to claim 1, characterized in that: The weight measuring component is provided with a load-bearing bracket (112), and the load-bearing bracket (112) is connected with an end roller (113) and an intermediate roller (114), with the end roller (113) located at both ends of the intermediate roller (114).

3. The automatic coal blending device for coke production according to claim 2, characterized in that: One end of the end roller (113) is provided with a fixed ring (115), and a movable ring (116) is slidably connected to the outer wall of the end roller (113). The movable ring (116) and the fixed ring (115) are connected by a spring (106), and the movable ring (116) is in contact with the edge of the conveyor belt (102).

4. The automatic coal blending device for coke production according to claim 1, characterized in that: The side of the intermediate plate (108) away from the extension plate (109) is connected to a motor (117), and the output end of the motor (117) is connected to the rotating disk (110) through a chain drive structure (118).

5. An automatic coal blending device for coke production according to claim 1, characterized in that: The outer wall of the straightening roller (107) is recessed in the middle, and the edge of the conveyor belt (102) is located in the recessed area.

6. An automatic coal blending device for coke production according to claim 1, characterized in that: The connecting frame (104) has sliding grooves (119) at both the upper and lower ends, and the movable frame (105) is slidably connected in the sliding grooves (119).

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