Screw conveyor system for recycling scattered coal in belt corridor

Abstract

The utility model provides a spiral conveyor system for recycling scattered coal in a belt corridor, a coal conveying belt mounting frame is arranged in the belt corridor, a carrier roller is arranged on the coal conveying belt mounting frame, a coal conveying belt is mounted on the carrier roller, the spiral conveyor system further comprises a spiral conveyor and a control system, the spiral conveyor is arranged below the coal conveying belt, and the control system is connected with the spiral conveyor. A material guide groove used for collecting scattered coal is arranged between the spiral conveyor and the coal conveying belt, the material guide groove is installed on the coal conveying belt installation frame, the material guide groove is arranged in an inclined mode, and the lower end of the material guide groove is located above a feeding port of the spiral conveyor. The discharge port of the spiral conveyor is connected with the lifting mechanism, and the discharge port of the lifting mechanism is provided with an adjustable gate or a guide plate, so that the scattered coal can be uniformly conveyed back to the coal conveying belt again. The system is simple in structure and convenient to use, resource waste in the coal conveying process is reduced, manpower resources are saved, and efficient operation of production is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of recovery of scattered coal in a belt corridor, and in particular to a screw conveyor system for recovery of scattered coal in a belt corridor. Background Art

[0002] During the coal transportation process, especially in the belt corridor, coal powder or small coal particles often fall from the conveyor belt for various reasons. These scattered coals not only waste resources, but also cause troubles in the cleaning and maintenance of the belt corridor, and also increase the risk of environmental pollution.

[0003] At present, the recovery and cleaning of coal powder or particles dropped on the conveyor belt is carried out by manual cleaning, which is labor-intensive and inefficient. Therefore, it is particularly important to develop an effective coal recovery system. Utility Model Content

[0004] The embodiment of the present application provides a screw conveyor system for recovering coal scattered in a belt corridor, so as to solve the problem of recovering coal scattered in a belt corridor.

[0005] An embodiment of the present application provides a screw conveyor system for recovering scattered coal in a belt corridor, wherein a coal conveyor belt mounting frame is provided in the belt corridor, rollers are provided on the coal conveyor belt mounting frame, and a coal conveyor belt is mounted on the rollers, including a screw conveyor and a control system, wherein the screw conveyor is provided below the coal conveyor belt, and a guide trough for collecting scattered coal is provided between the screw conveyor and the coal conveyor belt, wherein the guide trough is installed on the coal conveyor belt mounting frame, the guide trough is inclined, and the lower end of the guide trough is located above the feed port of the screw conveyor; a lifting mechanism is connected to the discharge port of the screw conveyor, and the lifting mechanism is used to scatter the scattered coal back onto the coal conveyor belt; the control system is configured to control the operation of the screw conveyor and the lifting mechanism.

[0006] In a feasible implementation, the material guide trough includes a side plate, a bottom plate and a rotating shaft; the side plate is rotatably connected to the bottom plate via the rotating shaft, and the two side plates are symmetrically arranged on both sides of the bottom plate; springs are installed on the surfaces of the two side plates close to the edges of the bottom plate, and a fixed block is provided on the coal conveyor belt mounting frame, and the spring is fixedly connected to the fixed block.

[0007] In a feasible implementation, the rotating shaft includes a first connecting shaft and a second connecting shaft; the first connecting shaft and the second connecting shaft are arranged alternately, and the second connecting shaft is fixedly connected to the base plate; a ring sleeve is provided at the bottom of the side plate, and the ring sleeve is rotatably connected to the first connecting shaft.

[0008] In a feasible implementation, the angle between the material guide trough and the horizontal direction is 5 degrees to 15 degrees.

[0009] In a feasible implementation, the screw conveyor includes a shell, a central shaft, spiral blades and a motor; the motor is arranged at one end of the shell, the central shaft is connected to the motor shaft, the central shaft passes through the shell wall and enters the inner cavity of the shell, and the spiral blades are arranged on the circumference of the central shaft and extend axially along the central shaft.

[0010] In a feasible implementation, at least one inspection door is provided on the shell, and the inspection door is located on a side of the shell.

[0011] In a feasible implementation, a rubber sealing strip is provided at the door frame of the inspection door.

[0012] In a feasible implementation, the central shaft includes a plurality of shaft sections, and adjacent shaft sections are connected by flanges.

[0013] In a feasible implementation, a plurality of support seats are arranged below the shell, and the support seats are fixedly connected to the floor of the belt corridor.

[0014] The embodiment of the present application provides a screw conveyor system for recovering scattered coal in a belt corridor, wherein a guide trough is arranged below the coal conveying belt, and the coal scattered by the coal conveying belt during the coal conveying process is collected through the guide trough, and the guide trough is arranged obliquely so that the scattered coal slides along the guide trough to the feed port of the screw conveyor, and the screw conveyor conveys the scattered coal to the lifting mechanism, and the scattered coal is sent back to the coal conveying belt through the lifting mechanism, and an adjustable gate or guide plate is arranged at the discharge port of the lifting mechanism, so that the scattered coal can be evenly sent back to the coal conveying belt. The system has a simple structure and is easy to use, reduces the waste of resources in the coal conveying process, saves human resources, and ensures efficient production operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a front view of the structure of the screw conveyor system for coal spreading and recovery in the belt gallery provided by the present application;

[0017] Figure 2 It is a side view of the structure of the screw conveyor system for coal spreading and recovery in the belt gallery provided by the present application;

[0018] Figure 3 It is a schematic diagram of the guide trough structure;

[0019] Figure 4 It is a schematic diagram of the connection between the side plate of the guide chute and the rotating shaft;

[0020] Figure 5 It is a schematic diagram of the structure of the guide chute shaft.

[0021] Description of reference numerals:

[0022] 1-coal conveyor belt mounting frame; 11-fixed block; 2-roller; 3-coal conveyor belt; 4-screw conveyor; 41-housing; 411-inspection door; 412-support seat; 42-center axis; 43-spiral blade; 44-motor; 5-material guide trough; 51-side plate; 511-ring sleeve; 52-bottom plate; 53-rotating shaft; 531-first connecting shaft; 532-second connecting shaft; 54-spring; 6-lifting mechanism. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0024] During the coal transportation process, especially in the belt corridor transportation link, coal powder or small coal particles often fall from the conveyor belt due to various reasons. These scattered coals not only cause waste of resources, but also cause troubles for the cleaning and maintenance of the belt corridor, and also increase the risk of environmental pollution. At present, the recovery and cleaning of coal powder or particles dropped on the conveyor belt adopts manual cleaning, which has high labor intensity and low work efficiency. The screw conveyor system for coal recovery in the belt corridor provided by the present application has a simple structure and is easy to use, which reduces the waste of resources in the coal transportation process, saves human resources, and ensures efficient production operation.

[0025] The screw conveyor system for coal spreading and recovery in the belt corridor provided by the present application is described in detail below in conjunction with the accompanying drawings.

[0026] Reference Figure 1 and Figure 2As shown, the present application is a screw conveyor system for recovering coal scattered in a belt corridor, a coal conveying belt mounting frame 1 is provided in the belt corridor, rollers 2 are provided on the coal conveying belt mounting frame 1, a coal conveying belt 3 is installed on the rollers 2, the coal conveying belt mounting frame 1 is fixed along the belt corridor, a plurality of rollers 2 are provided along the coal conveying belt mounting frame 1, the rollers 2 generally include horizontal rollers and inclined rollers, the horizontal rollers are located in the middle of the coal conveying belt mounting frame, the inclined rollers are symmetrically arranged on both sides of the horizontal rollers, the coal conveying belt 3 is arranged on the surface of the rollers 2, a plurality of rollers 2 rotate synchronously, and the coal conveying belt 3 rotates around the rollers 2 under the action of friction force to realize the transportation of coal. In the process of coal transportation, coal is often scattered from the coal conveying belt 3 due to the large angle of the belt transport lane, insufficient backstop force, belt deviation, unreasonable roller installation angle, etc. Therefore, in this system, a guide trough 5 is obliquely arranged below the coal conveying belt 3, and a screw conveyor 4 is arranged below the guide trough 5. When the system is running, the coal scattered by the coal conveying belt 3 falls into the guide trough 5. The coal scattered by the coal conveying belt 3 is referred to as scattered coal in the subsequent description. Since the guide trough 5 is inclined, the scattered coal rolls down along the slope direction of the guide trough 5. The lower end of the guide trough 5 corresponds to the feed port of the screw conveyor 4. After rolling along the guide trough 5, the scattered coal enters the conveying cavity of the screw conveyor 4 through the feed port of the screw conveyor 4. The scattered coal is horizontally moved by the screw conveyor 4. The conveying cavity of the screw conveyor 4 is provided with a discharge port at the end thereof, and the discharge port is connected to a lifting mechanism 6, which is used for vertical lifting. Specifically, a vertical or oblique pipe is provided in the lifting mechanism 6, and a spiral blade is installed inside the pipe for lifting the coal. The scattered coal is scattered back onto the coal conveying belt 3 through the discharge port of the lifting mechanism 6. A gate or a guide plate can be provided at the discharge port of the lifting mechanism 6 to control the flow rate and distribution of the scattered coal to ensure that it is evenly distributed on the coal conveying belt 3. The above structure can effectively complete the recovery process of the scattered coal.

[0027] The system sets a control center in the control room and is equipped with a control system, which realizes remote control of the screw conveyor 4 and the lifting mechanism 6. The device has a simple structure, and only needs to set the guide trough 5, the screw conveyor 4 and the lifting mechanism on the basis of the original belt corridor coal transportation system to complete the recovery of the scattered coal. The application realizes remote control of the screw conveyor 4 and the lifting mechanism 6 by setting a control system, and there is no need for operators to enter the belt corridor for cleaning, which improves work efficiency. Since the belt corridor is usually set at high altitude, the setting of this system avoids the safety hazards of manual operation.

[0028] Reference Figure 3 and Figure 4 As shown, in some embodiments, the guide trough 5 includes a side plate 51, a bottom plate 52 and a rotating shaft 53; the side plate 51 is rotatably connected to the bottom plate 52 via the rotating shaft 53, and the two side plates 51 are symmetrically arranged on both sides of the bottom plate 52. Figure 3 As shown, springs 54 are installed on the outer sides of the two side plates 51, that is, springs 54 are installed on the side plates 51 near the edge of the bottom plate 52. A fixed block 11 is provided on the coal conveyor belt mounting frame 1, and the spring 54 is connected to the fixed block 11. The height of the fixed block 11 from the bottom surface of the belt gallery is set according to the inclination of the guide trough 5. The guide trough 5 is installed on the fixed block 11 and then ensured to have a certain inclination, so that the scattered coal can roll along the guide trough 5 and then fall into the feed port of the screw conveyor 4.

[0029] During the coal conveying process, when coal is scattered from the coal conveying belt 3, it collides with the side plate 51 of the guide trough 5, and the side plate 51 is impacted. The setting of the rotating shaft 53 and the spring 54 plays a buffering role. The side plate 51 is displaced downward with the rotating shaft 53 as the axis and then returns to its original state under the action of the spring 54, thereby preventing the side plate 51 from being impacted and damaged. In addition, when the coal ash content in the scattered coal is high, the coal ash is easy to stick to the side plate 51 in the case of long-term operation. At this time, the side plate 51 can be pressed manually to make the side plate 51 vibrate under the action of the spring 54, so that the coal ash falls off. Compared with all the work being done manually, the method adopted by this system is more convenient and efficient. The connection method of the spring 54 and the fixed block 11 can be fixedly connected, such as welding, which is more reliable. Preferably, a detachable connection method can also be adopted, so that the guide trough 5 can be easily cleaned and replaced, and the transportation and assembly of the system are also more convenient. Specifically, a mounting hole may be opened on the fixing block 11, and the spring 54 is passed through the mounting hole and fixed by binding.

[0030] Reference Figure 5 As shown, in some embodiments, the rotating shaft 53 includes a first connecting shaft 531 and a second connecting shaft 532; the first connecting shaft 531 and the second connecting shaft 532 are arranged alternately, and the second connecting shaft 532 is fixedly connected to the bottom plate 52, and the fixed connection method can be welding; a ring sleeve 511 is provided at the bottom of the side plate 51, and the ring sleeve 511 is rotatably connected to the first connecting shaft 531. Figure 4 and Figure 5 As shown, the diameter of the first connecting shaft 531 is smaller than the diameter of the second connecting shaft 532. When the second connecting shaft 532 is fixedly connected to the base plate 52, there is a certain gap between the first connecting shaft 531 and the base plate 52, so that the side plate 51 can be installed by utilizing the gap. It should be noted that the wall thickness of the ring sleeve 511 at the bottom of the side plate 51 should be ensured to be smaller than the gap, so as to ensure smooth installation and that the side plate 51 can be rotated relative to the base plate 52 after installation.

[0031] In some embodiments, the angle between the guide trough 5 and the horizontal direction is 5 degrees to 15 degrees. The inclination angle of the guide trough 5 can be set arbitrarily, as long as it is ensured that the scattered coal can smoothly roll down to the lower end of the guide trough 5 and smoothly enter the feed port of the screw conveyor 4. Preferably, it is set to 5 degrees to 15 degrees. Within this angle range, not only can the smooth rolling of the scattered coal be ensured, but also the installation space can be saved. The height of the existing coal conveying belt 3 can meet the requirements without being increased, and the space of the belt corridor is fully utilized.

[0032] In some embodiments, the screw conveyor 4 includes a housing 41, a central shaft 42, a spiral blade 43 and a motor 44; the motor 44 is arranged at one end of the housing 41, and the motor 44 is connected to the control system, and is started and stopped by remote control. The central shaft 42 is connected to the rotating shaft of the motor 44, and the central shaft 42 passes through the shell wall of the housing 41 and enters the inner cavity of the screw conveyor 4. The spiral blade 43 is arranged on the circumference of the central shaft 42 and extends axially along the central shaft 42. The motor 44 provides a power source for the screw conveyor 4, and the rotation of the rotating shaft of the motor 44 drives the rotation of the central shaft 42, so that the spiral blade 43 pushes the coal spread into the inner cavity of the screw conveyor 4 and outputs it from the discharge port of the screw conveyor 4.

[0033] In some embodiments, at least one inspection door 411 is provided on the housing 41, and the inspection door 411 is located on the side of the housing 41. After the system has been running for a period of time, it is inevitable that a certain amount of coal dust will accumulate in the housing 41. At this time, it is convenient to perform regular cleaning through the inspection door 411. Once the device fails, such as when there is a blockage or jam, it can be repaired through the inspection door 411.

[0034] In some embodiments, a rubber sealing strip is provided at the door frame of the inspection door 411 to maintain the sealing property.

[0035] In some embodiments, the central shaft 42 includes multiple shaft sections, and adjacent shaft sections are connected by flanges. The splicing method allows the longer central shaft 42 to be easily transported, and can be reasonably combined and arranged according to the length of the belt corridor, thereby improving the applicability of the device.

[0036] In some embodiments, a plurality of support seats 412 are provided below the housing 41, and the support seats 412 are fixedly connected to the floor of the belt gallery. The support seats 412 facilitate reasonable adjustment of the height of the screw conveyor 4 to optimize system performance.

[0037] According to the above technical features, the screw conveyor system for coal recovery in the belt corridor provided by the present application is provided with a guide trough 5 below the coal conveying belt. When coal is scattered from the coal conveying belt 3, it collides with the side plate 51 of the guide trough 5. The side plate 51 is impacted, and the setting of the rotating shaft 53 and the spring 54 plays a buffering role. The side plate 51 moves downward with the rotating shaft 53 as the axis and then returns to its original state under the action of the spring 54. At this time, the coal rolls onto the bottom plate 52 of the guide trough 5, and rolls down along the bottom plate 52 from the feed port of the screw conveyor 4 into the cavity of the screw conveyor 4. Under the push of the spiral blade 43, the scattered coal moves horizontally, enters the lifting mechanism 6 from the discharge port of the screw conveyor 4, and is scattered back onto the coal conveying belt 3 under the action of the lifting mechanism 6. The system has a simple structure and is easy to use. It reduces the waste of resources in the coal conveying process, saves human resources, and ensures efficient production operation.

[0038] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0039] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A screw conveyor system for recovering coal scattered in a belt corridor, wherein a coal conveying belt mounting frame (1) is arranged in the belt corridor, a roller (2) is arranged on the coal conveying belt mounting frame (1), and a coal conveying belt (3) is installed on the roller (2), characterized in that: The invention comprises a screw conveyor (4) and a control system, wherein the screw conveyor (4) is arranged below the coal conveying belt (3), a guide trough (5) for collecting scattered coal is arranged between the screw conveyor (4) and the coal conveying belt (3), the guide trough (5) is installed on the coal conveying belt mounting frame (1), the guide trough (5) is arranged obliquely, and the lower end of the guide trough (5) is located above the feed port of the screw conveyor (4); the discharge port of the screw conveyor (4) is connected to a lifting mechanism (6), and the lifting mechanism (6) is used to scatter the scattered coal back onto the coal conveying belt (3); the control system is configured to control the operation of the screw conveyor (4) and the lifting mechanism (6).

2. The screw conveyor system for coal recovery in the belt corridor according to claim 1, characterized in that: The guide trough (5) comprises a side plate (51), a bottom plate (52) and a rotating shaft (53); the side plate (51) is rotatably connected to the bottom plate (52) via the rotating shaft (53), and the two side plates (51) are symmetrically arranged on both sides of the bottom plate (52); springs (54) are installed on the surfaces of the two side plates (51) close to the edges of the bottom plate (52), and a fixed block (11) is arranged on the coal conveyor belt mounting frame (1), and the spring (54) is fixedly connected to the fixed block (11).

3. The screw conveyor system for coal recovery in the belt gallery according to claim 2, characterized in that: The rotating shaft (53) comprises a first connecting shaft (531) and a second connecting shaft (532); the first connecting shaft (531) and the second connecting shaft (532) are arranged alternately, and the second connecting shaft (532) is fixedly connected to the bottom plate (52); a ring sleeve (511) is provided at the bottom of the side plate (51), and the ring sleeve (511) is rotatably connected to the first connecting shaft (531).

4. The screw conveyor system for coal recovery in a belt gallery according to claim 1, characterized in that: The included angle between the material guide trough (5) and the horizontal direction is 5 degrees to 15 degrees.

5. The screw conveyor system for coal recovery in a belt gallery according to claim 1, characterized in that: The screw conveyor (4) comprises an outer shell (41), a central shaft (42), a spiral blade (43) and an electric motor (44); the electric motor (44) is arranged at one end of the outer shell (41), the central shaft (42) is connected to the rotating shaft of the electric motor (44), the central shaft (42) passes through the shell wall of the outer shell (41) and enters the inner cavity of the outer shell (41), and the spiral blade (43) is arranged on the circumferential surface of the central shaft (42) and extends axially along the central shaft (42).

6. The screw conveyor system for coal recovery in a belt gallery according to claim 5, characterized in that: At least one inspection door (411) is provided on the outer shell (41), and the inspection door (411) is located on a side surface of the outer shell (41).

7. The screw conveyor system for coal recovery in a belt gallery according to claim 6, characterized in that: A rubber sealing strip is provided at the door frame of the inspection door (411).

8. The screw conveyor system for coal recovery in a belt gallery according to claim 5, characterized in that: The central shaft (42) comprises a plurality of shaft sections, and adjacent shaft sections are connected by flanges.

9. The screw conveyor system for coal recovery in a belt gallery according to claim 5, characterized in that: A plurality of support seats (412) are arranged below the shell (41), and the support seats (412) are fixedly connected to the floor of the belt corridor.

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