Admission belt conveyor system and arrangement method thereof

Abstract

The invention discloses an entrance belt conveyor system and an arrangement method thereof, the entrance belt conveyor system comprises a sectional conveyor and a storage yard side transfer station, and the sectional conveyor comprises a horizontal section, an inclined section and a storage yard section which are arranged in sequence; the storage yard side transfer station comprises a head hopper and a roller set. The roller set comprises a head roller, an area increasing roller, a turnabout roller, a first tail roller and a second tail roller. A head hopper is arranged at one end of the horizontal section, the bearing belt sequentially bypasses the head roller, the area increasing roller and the first tail roller, and the return belt sequentially bypasses the second tail roller and the turnabout roller. An opening in the bottom end of the head funnel is formed above the inclined section; the system obviously shortens the wiring distance, improves the storage yard utilization rate, reduces the operation and maintenance cost, is suitable for specialized bulk cargo wharf storage yards, and improves the efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of bulk cargo terminal transportation, and in particular relates to an entry belt conveyor system and an arrangement method thereof. Background Art

[0002] The traditional belt conveyor layout for bulk cargo terminal yards suffers from the following technical drawbacks: 1. Lengthy routes: The conveyor paths utilize multiple zigzag lines or redundant curved arcs, occupying 10%-15% of the yard area and resulting in a waste of land resources. 2. Limited yard capacity: The irrational conveyor route layout reduces the effective yard storage space by approximately 10%. 3. High operation and maintenance costs: The multi-segment curved design can easily lead to conveyor belt deviation and material spillage, increasing annual maintenance costs by approximately 5%-10%. Summary of the Invention

[0003] The purpose of the present invention is to provide an entry belt conveyor system and its layout method, which significantly shortens the wiring distance, improves the yard utilization rate and reduces the operation and maintenance costs through segmented layout and coordinated configuration of roller groups. It is suitable for specialized bulk cargo terminal yards and improves efficiency.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] In the first aspect, the present invention provides an entry belt conveyor system, including a segmented conveyor and a yard-side transfer station, the segmented conveyor is provided with a ring-shaped conveyor belt; the upper part of the conveyor belt forms a carrying belt, and the lower part forms a return belt, and the carrying belt includes a horizontal section, an inclined section and a yard section arranged in sequence; the yard-side transfer station includes a head funnel and a roller group; the roller group includes a head roller, a surface increasing roller, a redirecting roller, a first tail roller and a second tail roller; the head funnel is provided at one end of the horizontal section, the carrying belt passes around the head roller, the surface increasing roller and the first tail roller in sequence, and the return belt passes around the second tail roller and the redirecting roller in sequence; the bottom end opening of the head funnel is provided above the inclined section.

[0006] The in-yard belt conveyor system of the present invention significantly shortens the wiring distance, improves the yard utilization rate and reduces operation and maintenance costs through the segmented layout and coordinated configuration of the roller groups.

[0007] Preferably, the inclined section includes an inclined transition section, an inclined material guide section and a safety margin section which are arranged in sequence;

[0008] The bottom opening of the head funnel is connected to the top opening of the chute, the bottom opening of the chute is arranged in a material guide trough, and the material guide trough is arranged on the inclined material guide section.

[0009] Preferably, the length of the inclined transition section L1=1.8B, and the length of the inclined material guide section L2=1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; v is the speed of the conveyor belt, in m / s;

[0010] The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low starting point of the concave arc segment, in N; q B is the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 β is the maximum inclination angle of the concave arc segment, in degrees;

[0011] A wet dust removal device is respectively provided in the head funnel and the material guide trough.

[0012] The entrance belt conveyor system of the present invention can be further combined with parameter optimization to further shorten the wiring distance and improve efficiency.

[0013] Preferably, the low arc starting point of the concave arc segment is set at the end point of the safety margin segment on the yard side, and the length L3 of the safety margin segment is ≥1m.

[0014] Preferably, the wrap angle of the conveyor belt of the head roller is ≥180°, and the inclination angle α of the inclined section is ≤5°.

[0015] Preferably, the bottom height H1 of the first tail drum is ≥1.3 m.

[0016] Preferably, the head roller, the surface increasing roller and the redirecting roller are arranged on the same frame, and the first tail roller and the second tail roller are arranged on the same frame; the surfaces of the head roller, the surface increasing roller, the redirecting roller, the first tail roller and the second tail roller are all provided with a ceramic covering surface.

[0017] In a second aspect, the present invention provides a method for arranging the entrance belt conveyor system of the first aspect of the present invention, comprising the following steps:

[0018] The segmented conveyor is configured to include the horizontal section, the inclined section, and the yard section arranged in sequence; the inclined section is connected to the yard section, and the end of the horizontal section is connected to the inclined section via the yard-side transfer station;

[0019] The yard side transfer station is configured to include a head funnel and a roller group; the roller group is configured to include a head roller, a surface increasing roller, a redirecting roller, a first tail roller and a second tail roller; the surface increasing roller is arranged on the side of the first tail roller close to the head roller, the head funnel is set at one end of the horizontal section, the carrying belt is passed around the head roller, the surface increasing roller and the first tail roller in sequence, and the return belt is passed around the second tail roller and the redirecting roller in sequence; the bottom end opening of the head funnel is set above the inclined section.

[0020] Preferably, the inclined section includes an inclined transition section, an inclined material guide section and a safety margin section which are arranged in sequence;

[0021] The length of the inclined transition section is set to L1 = 1.8B, and the length of the inclined material guide section is set to L2 = 1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; v is the speed of the conveyor belt, in m / s;

[0022] The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low starting point of the concave arc segment, in N; q B is the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 β is the maximum inclination angle of the concave arc segment, in degrees;

[0023] The length of the safety margin section is set to L3≥1m.

[0024] Preferably, the low belt surface line of the entry belt conveyor is extended by geometric drawing method, and the low belt surface line of the entry belt conveyor is intersected with the tail car belt surface line of the stacker; then a concave arc segment is formed by rounding with a radius R, and then the center line of the stacker is moved, and the low starting point of the concave arc segment is moved to the yard side end point of the safety margin segment.

[0025] The entrance belt conveyor system and arrangement method thereof provided by the present invention have the following beneficial effects:

[0026] The inlet belt conveyor system and its layout method provided by the present invention significantly shorten the wiring distance, improve the yard utilization rate and reduce the operation and maintenance costs through the segmented layout and coordinated configuration of the roller groups. It is suitable for specialized bulk cargo terminal yards and improves efficiency. It can also be combined with parameter optimization to further shorten the wiring distance and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is an overall schematic diagram of an entrance belt conveyor system provided by one embodiment of the present invention.

[0028] Figure 2 It is a structural schematic diagram of an entrance belt conveyor system provided by one embodiment of the present invention.

[0029] Figure 3 It is a structural schematic diagram of a roller group of an entrance belt conveyor system provided by one embodiment of the present invention.

[0030] Reference numerals in the figures:

[0031] 110. Horizontal section, 111. Carrying belt, 112. Return belt, 120. Inclined section, 121. Inclined transition section, 122. Inclined material guide section, 123. Safety margin section, 124. Low arc starting point of the concave arc section, 130. Yard section, 2. Yard side transfer station, 210. Head hopper, 211. Chute, 212. Material guide trough, 213. Blanking center line, 220. Roller group, 221. Head roller, 222. Surface increase roller, 223. Redirecting roller, 224. First tail roller, 225. Second tail roller, 3. Entrance transfer station, 4. Channel, 5. Working limit position. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] Please refer to Figures 1 to 3 , this embodiment provides an entry belt conveyor system, including a sectional conveyor and a yard side transfer station 2, the sectional conveyor is provided with a ring-shaped conveyor belt; the upper part of the conveyor belt forms a carrying belt 111, and the lower part forms a return belt 112, the carrying belt 111 includes a horizontal section 110, an inclined section 120 and a yard section 130 arranged in sequence; the yard side transfer station 2 includes a head funnel 210 and a roller group 220; the roller group 220 includes a head roller 221, a surface increasing roller 222, a redirecting roller 223, a first tail roller 224 and a second tail roller 225; a head funnel 210 is provided at one end of the horizontal section 110, the carrying belt 111 passes around the head roller 221, the surface increasing roller 222 and the first tail roller 224 in sequence, and the return belt 112 passes around the second tail roller 225 and the redirecting roller 223 in sequence; the bottom end opening of the head funnel 210 is provided above the inclined section 120.

[0035] The entry belt conveyor system of this embodiment significantly shortens the wiring distance and improves the yard utilization rate through the segmented layout and coordinated configuration of the roller groups.

[0036] in, Figure 1 and Figure 2 The arrow in the middle indicates the yard side. Figure 1 As shown, specifically, a head funnel 210 is provided at one end of the horizontal section 110 on the yard side, and the other end is located in the entry transfer station 3.

[0037] like Figure 1 and Figure 2 As shown, a passage 4 is provided between the entry transfer station 3 and the yard side transfer station 2 for maintenance, operation, fire fighting and other purposes.

[0038] in addition, Figure 1 and Figure 2 The position of the blanking center line 213 of the head funnel 210 is shown in FIG. Figure 1 It shows the process section layout of the entrance belt conveyor system when the single cantilever stacker or stacker-reclaimer is at the extreme working position on the entrance side. Figure 1 The working limit position 5 shown in the figure specifically represents the center line position of the limit working position of the single cantilever stacker or stacker-reclaimer on the entrance side.

[0039] Please refer to Figure 1 and Figure 2 Specifically, the inclined section 120 includes an inclined transition section 121, an inclined material guide section 122 and a safety margin section 123 which are sequentially arranged;

[0040] The bottom opening of the head funnel 210 is connected to the top opening of the chute 211 . The bottom opening of the chute 211 is disposed in a material guide trough 212 . The material guide trough 212 is disposed on the inclined material guide section 122 .

[0041] The bottom of the guide trough 212 can be provided with supporting legs, which can be installed on the floor. There can be four supporting legs, which are arranged in a rectangular shape. The guide trough 212 can be assembled from multiple sections and can be laid along the entire length of the guide section.

[0042] Specifically, the length L1 of the inclined transition section 121 is 1.8B, and the length L2 of the inclined material guide section 122 is 1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; and v is the speed of the conveyor belt, in m / s.

[0043] The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low arc starting point 124 of the concave arc segment, in N; q B is the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 ;β is the maximum inclination angle of the concave arc segment, in degrees;

[0044] Wet dust removal devices are respectively installed in the head funnel 210 and the material guide chute 212 to protect the environment.

[0045] The entry belt conveyor system of this embodiment further shortens the wiring distance and improves the yard utilization rate through parameter optimization, combined with a segmented layout and coordinated configuration of roller groups.

[0046] Specifically, the low arc starting point 124 of the concave arc segment is set at the end point of the safety margin segment 123 on the yard side, and the length L3 of the safety margin segment 123 is ≥1m.

[0047] Please refer to Figures 1 to 3 Specifically, the wrap angle of the conveyor belt of the head roller 221 is ≥180°, and the inclination angle α of the inclined section 120 is ≤5°.

[0048] Please refer to Figure 3 Specifically, the bottom height H1 of the first tail roller 224 is ≥1.3 m.

[0049] The bottom height of the first tail roller 224 refers to the distance between the bottom of the first tail roller 224 and the floor. The installation position of the first tail roller 224 can be determined by the intersection of the drop centerline 213 of the head funnel 210 and the inclined section 120 of the conveyor belt, the length L1 of the inclined transition section 121, and the bottom height H1 of the first tail roller 224.

[0050] Specifically, the head roller 221 , the surface increasing roller 222 and the redirecting roller 223 are arranged on the same frame, and the first tail roller 224 and the second tail roller 225 are arranged on the same frame; that is, two frames are provided in total.

[0051] The surfaces of the head roller 221, the surface-enhancing roller 222, the redirecting roller 223, the first tail roller 224, and the second tail roller 225 are all provided with ceramic coatings. Specifically, the horizontal section 110 and the inclined section 120 utilize a high-strength steel-core conveyor belt, the tensile strength of which is calculated and selected in accordance with the "Belt Conveyor Engineering Technical Standards." The guide trough 212 utilizes wear-resistant steel plate.

[0052] The entrance belt conveyor system of this embodiment achieves the goal of shortening the wiring distance by 10%-15%, increasing the yard capacity by more than 10%, and significantly reducing operation and maintenance costs through segmented layout, coordinated configuration of roller groups, and parameter optimization. In fact, the total wiring length can be reduced by 80m (a reduction of 10%). Based on the calculation of a stack bottom width of 55m and a stack height of 17m, the single-side capacity of the yard can be increased by 40,000 tons. For example, in a coal terminal project, the entrance belt conveyor belt width B = 2.0m, the belt speed v = 5.0m / s, and the design according to the length L1 = 3.6m of the inclined transition section 121, the length L2 = 6m of the inclined guide section 122, and the radius R ≥ 410m of the concave arc section, the total wiring length is reduced by 78m, and the yard capacity is increased by 42,000 tons.

[0053] Example 2

[0054] This embodiment provides a method for arranging the entrance belt conveyor system described in Example 1, comprising the following steps:

[0055] The segmented conveyor is configured to include a horizontal section 110, an inclined section 120, and a yard section 130 arranged in sequence; the inclined section 120 is connected to the yard section 130, and the end of the horizontal section 110 is connected to the inclined section 120 via the yard-side transfer station 2;

[0056] The yard side transfer station 2 is configured to include a head funnel 210 and a roller group 220; the roller group 220 is configured to include a head roller 221, a surface increasing roller 222, a redirecting roller 223, a first tail roller 224 and a second tail roller 225; the surface increasing roller 222 is arranged on the side of the first tail roller 224 close to the head roller 221, and the head funnel 210 is set at one end of the horizontal section 110, and the carrying belt 111 is passed around the head roller 221, the surface increasing roller 222 and the first tail roller 224 in sequence, and the return belt 112 is passed around the second tail roller 225 and the redirecting roller 223 in sequence; the bottom end opening of the head funnel 210 is set above the inclined section 120.

[0057] Specifically, the inclined section 120 includes an inclined transition section 121, an inclined material guide section 122 and a safety margin section 123 which are arranged in sequence;

[0058] The length of the inclined transition section 121 is set to L1 = 1.8B, and the length of the inclined material guide section 122 is set to L2 = 1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; v is the speed of the conveyor belt, in m / s;

[0059] The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low arc starting point 124 of the concave arc segment, in N; q Bis the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 ;β is the maximum inclination angle of the concave arc segment, in degrees;

[0060] The length of the safety margin section 123 is set to L3 ≥ 1 m.

[0061] Specifically, the low-position belt surface line of the entry belt conveyor is extended through the geometric drawing method, and the low-position belt surface line of the entry belt conveyor is intersected with the tail car belt surface line of the stacker; then a concave arc segment is formed by rounding with a radius R, and then the center line of the stacker is moved, and the low-position starting point 124 of the concave arc segment is moved to the yard side end point of the safety margin segment 123 to achieve the shortest wiring.

[0062] The above embodiments are provided for illustrative purposes only and are not intended to limit the scope of implementation. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to provide an exhaustive list of all implementations. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

[0063] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operates in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0065] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

Claims

1. An entrance belt conveyor system, characterized in that: include: The segmented conveyor is provided with an annular conveyor belt; the upper portion of the conveyor belt forms a carrying belt, and the lower portion forms a return belt, and the carrying belt includes a horizontal section, an inclined section, and a yard section arranged in sequence; The yard-side transfer station includes a head hopper and a roller group; the roller group includes a head roller, a surface increasing roller, a redirecting roller, a first tail roller and a second tail roller; the head hopper is arranged at one end of the horizontal section, the carrying belt passes around the head roller, the surface increasing roller and the first tail roller in sequence, and the return belt passes around the second tail roller and the redirecting roller in sequence; the bottom end opening of the head hopper is arranged above the inclined section.

2. The entrance belt conveyor system according to claim 1, characterized in that: The inclined section includes an inclined transition section, an inclined material guide section and a safety margin section which are arranged in sequence; The bottom opening of the head funnel is connected to the top opening of the chute, and the bottom opening of the chute is arranged in a material guide trough; the material guide trough is arranged on the inclined material guide section.

3. The entrance belt conveyor system according to claim 2, characterized in that: The length of the inclined transition section L1 = 1.8B, and the length of the inclined material guide section L2 = 1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; v is the speed of the conveyor belt, in m / s; The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low starting point of the concave arc segment, in N; q B is the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 β is the maximum inclination angle of the concave arc segment, in degrees; A wet dust removal device is respectively provided in the head funnel and the material guide trough.

4. The entrance belt conveyor system according to claim 2, characterized in that: The low starting point of the concave arc segment is set at the end point of the safety margin segment on the yard side, and the length L3 of the safety margin segment is ≥1m.

5. The entrance belt conveyor system according to claim 1, characterized in that: The wrap angle of the conveyor belt of the head roller is ≥180°, and the inclination angle α of the inclined section is ≤5°.

6. The entrance belt conveyor system according to claim 1, characterized in that The bottom height H1 of the first tail drum is ≥1.3 m.

7. The entrance belt conveyor system according to any one of claims 1 to 6, characterized in that: The head roller, the surface increasing roller and the redirecting roller are arranged on the same frame, and the first tail roller and the second tail roller are arranged on the same frame; the surfaces of the head roller, the surface increasing roller, the redirecting roller, the first tail roller and the second tail roller are all provided with ceramic covering surfaces.

8. The method for arranging an entrance belt conveyor system according to any one of claims 1 to 7, characterized in that: The following steps are involved: The segmented conveyor is configured to include the horizontal section, the inclined section, and the yard section arranged in sequence; the inclined section is connected to the yard section, and the end of the horizontal section is connected to the inclined section via the yard-side transfer station; The yard side transfer station is configured to include a head funnel and a roller group; the roller group is configured to include a head roller, a surface increasing roller, a redirecting roller, a first tail roller and a second tail roller; the surface increasing roller is arranged on the side of the first tail roller close to the head roller, the head funnel is set at one end of the horizontal section, the carrying belt is passed around the head roller, the surface increasing roller and the first tail roller in sequence, and the return belt is passed around the second tail roller and the redirecting roller in sequence; the bottom end opening of the head funnel is set above the inclined section.

9. The method for arranging an entrance belt conveyor system according to claim 8, wherein: The inclined section includes an inclined transition section, an inclined material guide section and a safety margin section which are arranged in sequence; The length of the inclined transition section is set to L1 = 1.8B, and the length of the inclined material guide section is set to L2 = 1.2v; wherein B is the width of the conveyor belt of the segmented conveyor, in m; v is the speed of the conveyor belt, in m / s; The radius of the concave arc segment R≥F / (q B g cosβ), where F is the maximum tension of the conveyor belt at the low starting point of the concave arc segment, in N; q B is the mass per unit length of the conveyor belt, in kg; g is the acceleration due to gravity, which is 9.81 m / s 2 β is the maximum inclination angle of the concave arc segment, in degrees; The length of the safety margin section is set to L3≥1m.

10. The entrance belt conveyor system according to claim 8 or 9, characterized in that: The low belt surface line of the entry belt conveyor is extended by geometric construction, and the low belt surface line of the entry belt conveyor is intersected with the tail car belt surface line of the stacker; then a concave arc segment is formed by rounding with a radius R, and then the center line of the stacker is moved, and the low starting point of the concave arc segment is moved to the yard side end point of the safety margin segment.

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