A belt conveyor material limiting device

Abstract

The utility model belongs to the technical field of steel ore dressing equipment, especially relate to a belt conveyor material limiting device, including belt conveyor, the material limiting structure of the head department of belt conveyor is provided, the material limiting structure includes the support structure of being fixed in the head department of belt conveyor, the shape retainer of being fixed to the support structure and being provided above the adhesive tape of belt conveyor and the soft material scraping board of being fixed to the shape retainer, the soft material scraping board is provided as V shape, the V shape opening of soft material scraping board is close to the head of belt conveyor and is provided, the V shape end of soft material scraping board is far from the head of belt conveyor and is provided, and the V shape end is provided as arc shape. The soft material scraping board can spread the middle part of the ore raw material, avoid the thickness of the iron ore raw material to exceed the magnetic force line range of the magnetic separator and mistake the high content iron ore raw material as waste and discard, solve the problem that the existing belt conveyor transports the iron ore raw material to the magnetic separator screening and easily causes the waste of the iron ore raw material.

Description

Technical Field

[0001] This utility model belongs to the technical field of iron and steel ore beneficiation equipment, and in particular relates to a material limiting device for a belt conveyor. Background Technology

[0002] Currently, iron ore raw materials (which are a mixture of granules and fragments) are transported by belt conveyors to magnetic separators for screening. The magnetic separators screen the iron ore raw materials according to their iron content. The iron ore raw materials with high iron content that are screened out are further processed into raw materials for ironmaking, while the waste materials after screening are disposed of after treatment.

[0003] When belt conveyors transport iron ore raw materials, the belt between the head and tail of the belt conveyor is trough-shaped, and the iron ore raw materials placed on the belt have a convex shape with a high center and low sides. Especially when the size of the iron ore raw materials is uneven, the vertical thickness of the iron ore raw materials on the belt is greater, and the maximum thickness often exceeds the magnetic field line range of the magnetic separator. As a result, high-content iron ore raw materials are mistakenly discarded as waste, resulting in serious waste. Utility Model Content

[0004] The purpose of this utility model is to provide a material limiting device for a belt conveyor, which aims to solve the problem that existing belt conveyors easily cause waste of iron ore raw materials when conveying them to a magnetic separator for screening.

[0005] This utility model discloses a material limiting device for a belt conveyor. The material limiting device includes a belt conveyor and a material limiting structure disposed at the head of the belt conveyor. The material limiting structure includes a support structure fixed at the head of the belt conveyor, a shape retainer fixed to the support structure and disposed above the belt of the belt conveyor, and a soft scraper fixed to the shape retainer. The soft scraper is V-shaped, with the V-shaped opening of the soft scraper located close to the head of the belt conveyor and the V-shaped end of the soft scraper located away from the head of the belt conveyor. The V-shaped end of the soft scraper is arc-shaped, and the surface of the soft scraper is vertically arranged. A gap is provided between the bottom side of the soft scraper and the belt.

[0006] As an improvement, the support structure includes a front frame and a rear frame spaced apart along the conveying direction of the belt conveyor, and the shape retainer is fixedly connected to the front frame and the rear frame respectively.

[0007] As an improvement, the front frame and the rear frame each include uprights disposed on both sides of the conveyor belt and fixedly connected to the belt conveyor, and a crossbeam connected between the two uprights and spanning above the conveyor belt. The shape retainer is fixedly connected to the crossbeam of the front frame and the crossbeam of the rear frame.

[0008] As an improvement, a height adjustment structure is provided between the crossbeam and the two columns. The height adjustment structure includes a plurality of adjustment holes arranged vertically at intervals on the columns, fixing holes respectively arranged at both ends of the crossbeam, and a first fastening connection structure is provided between the fixing holes at both ends of the crossbeam and the adjustment holes of the corresponding columns.

[0009] As an improvement, the shape retainer includes a V-shaped mounting plate, wherein the V-shaped opening of the V-shaped mounting plate is located close to the head of the belt conveyor, and the V-shaped end of the V-shaped mounting plate is located away from the head of the belt conveyor, and the V-shaped end of the V-shaped mounting plate is arc-shaped; it also includes front mounting seats fixed to both sides of the V-shaped opening of the V-shaped mounting plate and rear mounting seats fixed to both sides of the V-shaped end of the V-shaped mounting plate, the two front mounting seats being respectively mounted on the crossbeam of the front frame, and the two rear mounting seats being respectively mounted on the crossbeam of the rear frame; the soft scraper is fixed to the V-shaped mounting plate.

[0010] As an improvement, the front mounting base and the rear mounting base are configured as support plates, and the support plates are provided with mounting holes that are adapted to the shape of the crossbeam.

[0011] As an improvement, the crossbeam is configured as a square tube, and the mounting holes on the support plate are configured as square holes.

[0012] As an improvement, the shape retainer further includes a V-shaped pressure plate adapted to the shape of the V-shaped mounting plate, and multiple sets of second fastening connection structures are provided between the V-shaped pressure plate and the V-shaped mounting plate, with the soft scraper clamped between the V-shaped pressure plate and the V-shaped mounting plate.

[0013] As an improvement, a reinforcing strut is provided between the plates on both sides of the V-shaped opening of the V-shaped mounting plate or between the two front mounting seats.

[0014] As an improvement, the V-shaped end of the flexible scraper is positioned corresponding to the middle of the tape, and a gap is provided between the two ends of the V-shaped opening of the flexible scraper and the corresponding side of the tape.

[0015] The beneficial effects achieved by adopting the above technical solution are as follows:

[0016] The material limiting device for a belt conveyor of this utility model includes a belt conveyor, a material limiting structure set at the head of the belt conveyor, the material limiting structure including a support structure fixed at the head of the belt conveyor, a shape retainer fixed to the support structure and set above the belt of the belt conveyor, and a soft scraper fixed to the shape retainer. The soft scraper is V-shaped, with the V-shaped opening of the soft scraper set close to the head of the belt conveyor and the V-shaped end of the soft scraper set away from the head of the belt conveyor. The V-shaped end of the soft scraper is arc-shaped, the surface of the soft scraper is set vertically, and there is a gap between the bottom side of the soft scraper and the belt.

[0017] When a belt conveyor transports iron ore, the iron ore on the conveyor belt has a convex center. As the belt rotates, the iron ore is conveyed towards the head of the conveyor. Because a material-limiting structure is located at the head of the conveyor, the flexible scraper of this structure is positioned above the belt and is V-shaped. The V-shaped opening of the flexible scraper is close to the head of the conveyor, while the V-shaped end is far away. As the iron ore is conveyed towards the head of the conveyor, the center of the iron ore contacts the V-shaped end of the flexible scraper. The blocking and guiding action of the plates on both sides of the V-shaped end of the flexible scraper flattens the center of the ore, preventing the belt from... The thickness of the iron ore raw material on the conveyor belt exceeds the magnetic field lines of the magnetic separator, causing high-content iron ore raw material to be mistakenly discarded as waste. This invention avoids wasting iron ore raw material. Furthermore, the soft scraper plate is flexible, which greatly reduces noise when spreading the iron ore raw material. At the same time, because the soft scraper plate is V-shaped and the V-shaped end of the scraper plate is set to an arc shape, it can reduce the resistance when the iron ore raw material passes through, thereby reducing the risk of damaging the conveyor belt. The material limiting device of this invention solves the problem of iron ore raw material waste that is easily caused when the existing belt conveyor transports iron ore raw material to the magnetic separator for screening. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the material limiting device for a belt conveyor according to this utility model;

[0019] Figure 2 This is a front view (enlarged view) of the material limiting device of the belt conveyor in the scraping state of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram (enlarged view) of the scraping structure of the material limiting device for a belt conveyor according to this utility model;

[0021] Among them, 10 is a belt conveyor; 11 is a conveyor belt; 20 is iron ore raw material; 30a is a front frame; 30b is a rear frame; 31 is a column; 311 is an adjustment hole; 32 is a crossbeam; 321 is a fixing hole; 40 is a shape retainer; 41 is a V-shaped mounting plate; 42 is a front mounting seat; 43 is a rear mounting seat; 44 is a V-shaped pressure plate; 45 is a reinforcing strut; and 50 is a soft scraper. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Figures 1 to 3 This is a schematic diagram of the material limiting device for a belt conveyor according to this utility model, wherein, Figure 1 This diagram shows a three-dimensional structural schematic of the material limiting device for a belt conveyor according to the present invention. Figure 2 This diagram shows a front view (enlarged view) of the material limiting device for a belt conveyor in the scraping state, according to the present invention. Figure 3 This diagram shows a three-dimensional (enlarged) structural schematic of the scraping structure of the material limiting device for a belt conveyor according to this invention. For ease of description, only the parts relevant to this invention are shown in the diagram.

[0024] It should be noted that if the directional indications (such as up, down, front, back, etc.) involved in this utility model are only used to explain the relative positional relationship between the components in a certain specific posture, the directional indications will change accordingly if the specific posture changes; if the descriptions of "first", "second", etc. involved in this utility model are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0025] Depend on Figure 1 , Figure 2 and Figure 3As can be seen, this utility model discloses a material limiting device for a belt conveyor, including a belt conveyor 10. Generally, it is understood that the conveying direction of the belt conveyor 10 is from the tail end of the belt conveyor 10 to the head end of the belt conveyor 10. Corresponding to the material limiting structure set at the head end of the belt conveyor 10, the material limiting structure includes a support structure fixed at the head end of the belt conveyor 10, and a shape retainer 40 fixed to the support structure and set above the belt 11 of the belt conveyor 10. The soft scraper 50 is fixed to the shape retainer 40. The soft scraper 50 is V-shaped. The V-shaped opening of the soft scraper 50 is located near the head of the belt conveyor 10, and the V-shaped end of the soft scraper 50 is located away from the head of the belt conveyor 10. The V-shaped end of the soft scraper 50 is arc-shaped. The surface of the soft scraper 50 is vertically arranged. There is a gap between the bottom side of the soft scraper 50 and the belt 11 of the belt conveyor 10.

[0026] When the belt conveyor 10 transports iron ore raw materials, the middle part of the iron ore raw materials on the belt 11 of the belt conveyor 10 is convex, such as... Figure 1 As shown, iron ore raw material is conveyed towards the head of the belt conveyor 10 as the belt 11 rotates. Because a material limiting structure is provided at the head of the belt conveyor 10, the soft scraper 50 of the material limiting structure is located above the belt 11, and the soft scraper 50 is V-shaped. The V-shaped opening of the soft scraper 50 is positioned close to the head of the belt conveyor 10, and the V-shaped end of the soft scraper 50 is positioned away from the head of the belt conveyor 10. When the iron ore raw material is conveyed towards the head of the belt conveyor 10 as the belt 11 rotates, the middle part of the iron ore raw material contacts the V-shaped end of the soft scraper 50. Under the blocking and guiding action of the plates on both sides of the V-shaped end of the soft scraper 50, the middle part of the ore raw material can be flattened, as shown... Figure 2 As shown, this invention prevents the thickness of the iron ore material on the belt 11 of the belt conveyor 10 from exceeding the magnetic field lines of the magnetic separator, thus avoiding the mistaken disposal of high-content iron ore material as waste and preventing waste of iron ore material. Furthermore, the soft scraper 50 is soft, which greatly reduces noise when flattening the iron ore material. At the same time, since the soft scraper 50 is V-shaped and the V-shaped end of the soft scraper 50 is set to an arc shape, it can reduce the resistance when the iron ore material passes through, thereby reducing the risk of damaging the belt 11. The belt conveyor material limiting device of this invention solves the problem of iron ore material waste that is easily caused when the existing belt conveyor transports iron ore material to the magnetic separator for screening.

[0027] Specifically, the structure of the belt conveyor 10 is a known technology, and its specific structure will not be described in detail here.

[0028] In this utility model, the support structure includes a front frame 30a and a rear frame 30b arranged at intervals along the conveying direction of the belt conveyor 10, and the shape retainer 40 is fixedly connected to the front frame 30a and the rear frame 30b respectively.

[0029] Specifically, the front frame 30a and the rear frame 30b each include uprights 31 disposed on both sides of the conveyor belt 11 and fixedly connected to the belt conveyor 10, and a crossbeam 32 connected between the two uprights 31 and spanning above the conveyor belt 11. The shape retainer 40 is fixedly connected to the crossbeam 32 of the front frame 30a and the crossbeam 32 of the rear frame 30b respectively.

[0030] To accommodate the magnetic field lines of different magnetic separators and ensure that the flattened iron ore raw material is below the magnetic field lines of the magnetic separator, a height adjustment structure is provided between the crossbeam 32 and the two columns 31. The height adjustment structure includes multiple adjustment holes 311 arranged vertically at intervals on the columns 31, and fixing holes 321 respectively arranged at both ends of the crossbeam 32. A first fastening connection structure is provided between the fixing holes 321 at both ends of the crossbeam 32 and the adjustment holes 311 of the corresponding side columns 31. Typically, the first fastening connection structure is a bolt and nut structure, but it can also be a pin and cotter pin structure.

[0031] In other embodiments, a lifting adjustment mechanism is provided between the support structure and the shape retainer 40. The lifting adjustment mechanism is fixed to the support structure, and the shape retainer 40 is fixed to the output part of the lifting adjustment mechanism. A height detection device for detecting the height of the iron ore raw material, such as a height detection sensor or a vision camera, is fixed on the support structure. The height is detected by the height detection device, and the height of the soft scraper 50 is adjusted by the lifting adjustment mechanism to automatically adjust the thickness of the iron ore raw material. Specifically, the lifting adjustment mechanism is an electric cylinder, or it can be configured as a lead screw and nut assembly.

[0032] Specifically, the shape retainer 40 includes a V-shaped mounting plate 41, with the V-shaped opening of the V-shaped mounting plate 41 positioned close to the head of the belt conveyor 10 and the V-shaped end of the V-shaped mounting plate 41 positioned away from the head of the belt conveyor 10, and the V-shaped end of the V-shaped mounting plate 41 being arc-shaped; it also includes front mounting seats 42 respectively fixed to both sides of the V-shaped opening of the V-shaped mounting plate 41 and rear mounting seats 43 respectively fixed to both sides of the V-shaped end of the V-shaped mounting plate 41, with the two front mounting seats 42 respectively mounted on the front frame 30. The crossbeam 32 of the front frame 30a and the two rear mounting seats 43 are respectively installed on the crossbeam 32 of the rear frame 30b. Normally, the front mounting seats 42 and rear mounting seats 43 are fixed to the V-shaped mounting plate 41 by welding or bolt and nut structure. In this embodiment, the front mounting seats 42 and rear mounting seats 43 are set as support plates, with mounting holes on the support plates that match the shape of the crossbeam 32. During installation, the front mounting seat 42 is directly fitted onto the crossbeam 32 of the front frame 30a and the rear mounting seat 43 is fitted onto the crossbeam 32 of the rear frame 30b. Correspondingly, the soft scraper 50 is fixed to the V-shaped mounting plate 41. In this case, the soft scraper 50 is fixed by adhesive bonding or bolt and nut structure.

[0033] Typically, the crossbeam 32 is set as a square tube, and the corresponding mounting holes on the bearing plate are set as square holes.

[0034] To facilitate the installation and replacement of the soft scraper 50, the shape retainer 40 also includes a V-shaped pressure plate 44 that is adapted to the shape of the V-shaped mounting plate 41. Multiple sets of second fastening connection structures are provided between the V-shaped pressure plate 44 and the V-shaped mounting plate 41. The soft scraper 50 is clamped between the V-shaped pressure plate 44 and the V-shaped mounting plate 41. Typically, the second fastening connection structure is a bolt and nut structure.

[0035] Furthermore, reinforcing struts 45 are provided between the plates on both sides of the V-shaped opening of the V-shaped mounting plate 41 or between the two front mounting seats 42 to enhance the strength between the plates on both sides of the V-shaped opening of the V-shaped mounting plate 41, thereby better maintaining the shape of the soft scraper 50. In this embodiment, the reinforcing struts 45 are disposed between the two front mounting seats 42. Typically, the two ends of the reinforcing struts 45 are fixedly connected to the two front mounting seats 42 by welding. Alternatively, axial threaded holes can be provided at both ends of the reinforcing struts 45 for fixing with bolts.

[0036] In this invention, the V-shaped end of the soft scraper 50 is positioned at the middle of the tape 11, and a gap is provided between the two ends of the V-shaped opening of the soft scraper 50 and the corresponding side of the tape 11 to prevent the iron ore material from falling onto the tape 11 and causing spillage when the iron ore material is flattened.

[0037] In this invention, the soft scraper 50 is made of rubber, soft plastic, etc., and can be prefabricated into a V shape or a strip shape.

[0038] The above description is only some embodiments of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material limiting device for a belt conveyor, comprising a belt conveyor, characterized in that, It also includes a material limiting structure corresponding to the head of the belt conveyor. The material limiting structure includes a support structure fixed to the head of the belt conveyor, a shape retainer fixed to the support structure and disposed above the belt of the belt conveyor, and a soft scraper fixed to the shape retainer. The soft scraper is V-shaped, with the V-shaped opening of the soft scraper located close to the head of the belt conveyor and the V-shaped end of the soft scraper located away from the head of the belt conveyor. The V-shaped end of the soft scraper is arc-shaped, and the surface of the soft scraper is vertically arranged. A gap is provided between the bottom side of the soft scraper and the belt.

2. The material limiting device for a belt conveyor according to claim 1, characterized in that, The support structure includes a front frame and a rear frame that are spaced apart along the conveying direction of the belt conveyor, and the shape retainer is fixedly connected to the front frame and the rear frame respectively.

3. The material limiting device for a belt conveyor according to claim 2, characterized in that, The front frame and the rear frame each include uprights disposed on both sides of the conveyor belt and fixedly connected to the belt conveyor, and a crossbeam connected between the two uprights and spanning above the conveyor belt. The shape retainer is fixedly connected to the crossbeam of the front frame and the crossbeam of the rear frame.

4. The material limiting device for a belt conveyor according to claim 3, characterized in that, A height adjustment structure is provided between the crossbeam and the two columns. The height adjustment structure includes a plurality of adjustment holes spaced vertically on the columns, and fixing holes respectively provided at both ends of the crossbeam. A first fastening connection structure is provided between the fixing holes at both ends of the crossbeam and the adjustment holes of the corresponding columns.

5. The material limiting device for a belt conveyor according to claim 3, characterized in that, The shape retainer includes a V-shaped mounting plate, wherein the V-shaped opening of the V-shaped mounting plate is located near the head of the belt conveyor, and the V-shaped end of the V-shaped mounting plate is located away from the head of the belt conveyor, and the V-shaped end of the V-shaped mounting plate is arc-shaped; it also includes front mounting seats fixed to both sides of the V-shaped opening of the V-shaped mounting plate and rear mounting seats fixed to both sides of the V-shaped end of the V-shaped mounting plate, the two front mounting seats being respectively mounted on the crossbeam of the front frame, and the two rear mounting seats being respectively mounted on the crossbeam of the rear frame; the soft scraper is fixed to the V-shaped mounting plate.

6. The material limiting device for a belt conveyor according to claim 5, characterized in that, The front mounting base and the rear mounting base are configured as support plates, and the support plates are provided with mounting holes that are adapted to the shape of the crossbeam.

7. The material limiting device for a belt conveyor according to claim 6, characterized in that, The crossbeam is configured as a square tube, and the mounting holes on the support plate are configured as square holes.

8. The material limiting device for a belt conveyor according to claim 5, characterized in that, The shape retainer also includes a V-shaped pressure plate adapted to the shape of the V-shaped mounting plate, and multiple sets of second fastening connection structures are provided between the V-shaped pressure plate and the V-shaped mounting plate, with the soft scraper clamped between the V-shaped pressure plate and the V-shaped mounting plate.

9. The belt conveyor material limiting device according to any one of claims 5 to 8, characterized in that, A reinforcing strut is provided between the plates on both sides of the V-shaped opening of the V-shaped mounting plate or between the two front mounting seats.

10. The material limiting device for a belt conveyor according to claim 1, characterized in that, The V-shaped end of the flexible scraper is positioned corresponding to the middle of the tape, and a gap is provided between the two ends of the V-shaped opening of the flexible scraper and the corresponding side of the tape.

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