Novel combined structure of material guide groove and fixed walking end beam for scraper reclaimer

Abstract

The invention discloses a novel combined structure of a material guide groove and a fixed walking end beam for a scraper reclaimer. The novel combined structure comprises the material guide groove, the fixed walking end beam and a reinforcing beam, wherein the material guide groove is inclined by 35 degrees; the fixed walking end beam is used for placing the material guide groove and is concave in the middle part, and the reinforcing beam penetrates through the width direction of the material guide groove and is connected with the fixed walking end beam into a whole; a scraper operation part with a scraper is arranged in the material guide groove, and an upper guide rail and a lower guide rail for supporting the scraper operation part are arranged in the material guide groove; the stiffening beam is connected with the upper guide rail through an upper support, and the stiffening beam is connected with the lower guide rail through a lower support. Compared with an existing warped head type side scraper blade material taking machine, the wide material pile width can be achieved, so that the large material pile storage amount is achieved, and the operation power consumption of equipment is reduced.

Description

Technical Field

[0001] This invention relates to the field of bulk material conveying equipment, and in particular to a novel combined structure of a material guide trough and a fixed traveling end beam for a scraper reclaimer, specifically a novel combined structure between a material guide trough and a fixed traveling end beam for a tilting-head side scraper reclaimer. Background Technology

[0002] Cantilevered side-mounted scraper reclaimers are widely used in modern cement plants, smelters, docks, and other material handling yards for mixing and auxiliary materials such as sandstone, gypsum, clay, and iron powder. Pre-homogenization of raw materials, auxiliary materials, and fuels is a crucial step in modern dry-process cement production lines, involving various materials in clinker and cement production. The pre-homogenization stockpile and its stacker-reclaimer equipment serve both storage and partial pre-homogenization functions.

[0003] The key feature of the tilting-head side scraper reclaimer is the elimination of the traditional concrete ramp of a stockpile, replacing it with horizontal material handling. This improves the utilization rate of the stockpile storage area and, most importantly, significantly reduces the civil engineering investment cost of the stockpile construction, while also increasing its overall efficiency. The tilting-head side scraper reclaimer can handle various materials and mainly consists of a scraper conveying system, a hoisting system, a frame, fixed end beams, swing end beams, guide chutes, a chute system, a lighting system, a lubrication system, a detection system, a control system, a power cable reel, and a control cable reel. The reclaimer reciprocates along a track along the length of the stockpile. The scraper conveying system carries the material from the surface of the stockpile down to the guide chutes, lifts it to the top, and then it falls onto the discharge conveyor belt.

[0004] Material storage capacity in a stockpile is a crucial indicator of its technological performance; within a stockpile of equal width, the goal should be to maximize material storage capacity. Existing cantilever reclaimers with tilting heads suffer from low material storage capacity and high power consumption during operation. Further improvements to the reclaimer structure are needed to overcome these issues. Summary of the Invention

[0005] Purpose of the invention: To address the shortcomings and defects of existing technologies, this invention provides a novel combined structure of a material guide chute and a fixed walking end beam for a scraper reclaimer. Compared with existing tilting-head side scraper reclaimers, it can achieve a wider material pile width, thereby achieving a larger material pile storage capacity and reducing equipment operating power consumption.

[0006] Technical solution: The present invention provides a novel combined structure of a material guide trough and a fixed traveling end beam for a scraper feeder, characterized in that: it includes a material guide trough inclined at 35°, a fixed traveling end beam with a central concave shape for placing the material guide trough, and a reinforcing beam that runs through the width of the material guide trough and is integrally connected to the fixed traveling end beam; the material guide trough contains a scraper running part with a scraper, and the material guide trough is provided with an upper guide rail and a lower guide rail to support the scraper running part; the reinforcing beam is connected to the upper guide rail via an upper support, and the reinforcing beam is connected to the lower guide rail via a lower support.

[0007] The material guide trough is a concave conveying chute made of inclined steel plates, with wear-resistant steel plates on the bottom and both sides. The inclination angle is designed to be 35° according to the characteristics of the conveyed material.

[0008] The fixed walking end beam has a box-shaped cross-section with wheels and a walking mechanism at both ends. The cross-section of the middle material guide trough is a recessed box-shaped structure with the upper wing plate placed at an inclination of 35°. The material guide trough is welded to the middle recessed area of ​​the fixed walking end beam.

[0009] The reinforcing beam is a rectangular steel beam that runs through the material guide chute, with both ends connected to the non-recessed parts of the centrally recessed fixed walking end beam.

[0010] The reinforcing beam serves two purposes: firstly, it strengthens the rigidity and strength of the recessed section of the fixed walking end beam; secondly, it supports the upper and lower guide rails within the material guide chute; and thirdly, it increases the rigidity of the material guide chute by providing lateral support.

[0011] The scraper running part is a scraper driven by a running chain, which scrapes the material on the material pile into the material guide chute and lifts it to the top before it falls onto the discharge belt conveyor.

[0012] The upper guide rail is made of spliced ​​steel sections and is supported on the reinforcing beam by an upper support.

[0013] The lower guide rail is made of spliced ​​steel sections and is supported on the reinforcing beam by a lower support.

[0014] The upper and lower supports are steel structural components that connect the upper and lower guide rails to the reinforcing beam.

[0015] The discharge belt conveyor is located below the discharge chute.

[0016] Beneficial Effects: Compared with the prior art, the present invention has the following significant advantages: The fixed traveling end beam of the present invention is designed with a concave structure in the middle, and the material guide chute is placed on it at an inclination of 35°. Simultaneously, a reinforcing beam is designed to traverse the material guide chute. This reinforcing beam serves two purposes: firstly, it reinforces the stiffness and strength of the fixed traveling end beam section in the chute placement area; secondly, it supports the guide rail of the scraper running part inside the chute; and thirdly, it increases the rigidity of the chute by providing lateral support. Compared with conventional structures, this combined structural design effectively shortens the horizontal distance of the material guide chute starting point and the height of the material drop point. Compared with similar equipment at home and abroad: firstly, it increases the effective width of the material storage yard, thereby increasing the material storage capacity; secondly, by reducing the height of the material drop point, it reduces the work done by the equipment in lifting the material, achieving the goal of energy saving. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an existing tilting-head side scraper reclaimer.

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0019] Figure 3 This is a schematic diagram of the structure of the tilting-head side scraper reclaimer of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0021] Figure 5 This is a schematic diagram of the structure of the present invention;

[0022] Figure 6 for Figure 5 A schematic diagram of the BB cross-sectional structure;

[0023] Figure 7 for Figure 5 Schematic diagram of CC cross-section structure;

[0024] Figure 8 A comparison diagram of the existing technology and the tilting-head side scraper reclaimer of the present invention;

[0025] In the figure, 1 is the material guide chute; 2 is the fixed walking end beam; 3 is the reinforcing beam; 4 is the scraper running part; 5 is the upper guide rail; 6 is the lower guide rail; 7 is the upper support; 8 is the lower support; 9 is the discharge chute; and 10 is the discharge belt conveyor. Detailed Implementation

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The present invention discloses a novel combined structure of a material guide trough and a fixed walking end beam for a scraper feeder, comprising a material guide trough 1 inclined at 35°, a fixed walking end beam 2 with a central recessed portion for placing the material guide trough 1, and a reinforcing beam 3 that passes through the width direction of the material guide trough 1 and is integrally connected to the fixed walking end beam 2; a scraper running part 4 with a scraper inside the material guide trough 1, and an upper guide rail 5 and a lower guide rail 6 for supporting the scraper running part 4 inside the material guide trough 1; the reinforcing beam 3 is connected to the upper guide rail 5 by an upper support 7, and the reinforcing beam 3 is connected to the lower guide rail 6 by a lower support 8.

[0028] like Figure 1 The image shows a conventional tilting-type side-mounted scraper reclaimer. The reclaimer sits on two traveling beams and reciprocates along a track along the length of the stockpile. Simultaneously, the reclaimer's cantilever is raised and lowered by an electric hoist. Scraper chains are mounted on the reclaimer's cantilever. The fixed traveling end beam near the stockpile has a box-shaped cross-section. A material guide chute is inclinedly installed on the upper surface of this fixed traveling box-shaped end beam. The scrapers on the scraper chain carry the material from the stockpile surface down into the material guide chute, lifting it to the top before it falls onto the discharge conveyor belt, thus completing the reclaiming process.

[0029] like Figure 5 , Figure 6 , Figure 7 As shown, the material guide chute of this invention is a concave conveying chute made of inclined steel plates, with wear-resistant steel plates on the bottom and both sides. The inclination angle is designed to be 35° according to the characteristics of the conveyed material. The material is scraped into the material guide chute by a scraper and lifted to the top before falling onto the discharge belt conveyor. The material guide chute is welded to the central recessed area of ​​the fixed traveling end beam.

[0030] The fixed walking end beam of the present invention has a box-shaped cross-section, with wheels and a walking mechanism at both ends. The cross-section of the middle material guide trough width area is a recessed box-shaped structure with the upper wing plate placed at an inclination of 35°. The material guide trough is welded to the middle recessed area of ​​the fixed walking end beam.

[0031] The reinforcing beam of this invention is a rectangular steel beam that runs horizontally through the material guide chute, with both ends connected to the non-recessed portions of the centrally recessed fixed traveling end beam. The reinforcing beam serves two purposes: firstly, it strengthens the rigidity and strength of the recessed section of the fixed traveling end beam; secondly, it supports the upper and lower guide rails within the material guide chute; and thirdly, it provides lateral support to the material guide chute, increasing its rigidity.

[0032] like Figure 4As shown, the scraper operating part of this invention is a chain-driven scraper that scrapes the material on the stockpile into the material guide chute and lifts it to the upper part before it falls onto the discharge conveyor belt. The upper guide rail is made of spliced ​​steel sections and is supported on the reinforcing beam by an upper support. The lower guide rail is also made of spliced ​​steel sections and is supported on the reinforcing beam by a lower support. The upper and lower supports are steel structural components that connect the upper and lower guide rails to the reinforcing beam. The discharge conveyor belt is located below the discharge chute.

[0033] like Figure 8 As shown, in a typical tilting-type side-mounted scraper reclaimer, the material guide chute is mounted on a fixed traveling beam near the stockpile side. The traveling beam is a box beam, and the material guide chute is mounted on top of the box beam. Dimensions L1 and H1 are the dimensions to the edge of the stockpile and the height of the material guide chute's drop point, respectively. The stockpile width is B1. To increase the stockpile width and thus improve its storage capacity, this invention significantly shortens the height of the box beam supporting the material guide chute in the middle of the fixed traveling beam, creating a low-profile box beam with a 35° inclined upper flange. The material guide chute is welded to this area. In this case, dimensions L2 and H2 are the dimensions to the edge of the stockpile and the height of the material guide chute's drop point, respectively. The stockpile width is B2. Compared to the aforementioned material guide chute erected on a fixed traveling end beam with an unshortened height, it is clear that L2 < L1, H2 < H1, and B2 > B1. Due to the increased width of the material pile, the increase in the cross-sectional area of ​​the material pile is the square of the increase in width. Therefore, the storage capacity of the stockpile is significantly increased. At the same time, since H2 < H1, the height of the material being lifted is reduced, so the power consumed by the equipment is reduced, thus achieving an energy-saving effect.

[0034] like Figure 5 , Figure 6 , Figure 7 As shown, the central region of the fixed traveling beam of the material guide chute is a critical section in mechanical calculations. The significant shortening of the section height inevitably leads to a substantial reduction in the section modulus. Therefore, it is necessary to reinforce the strength and stiffness of this area. Based on this consideration, a reinforcing beam is designed into the traveling beam in this invention. This reinforcing beam is rigidly connected at both ends to the unshortened sections of the box girder of the fixed traveling beam. The reinforcing beam not only strengthens the cross-section of the central region of the fixed traveling beam, but also, as it passes through the material guide chute, it serves as a support for the upper and lower guide rails of the scraper running section inside the material guide chute, and simultaneously acts as a transverse support rib of the material guide chute, thus having a triple function. The scraper running section inside the material guide chute is driven by a running chain, supported by the upper and lower guide rails, which are in turn supported by the reinforcing beam via upper and lower supports.

[0035] This invention, through the design of the internal structure of the equipment, increases the width of the material pile in a stockyard of the same width without increasing the weight or cost of the equipment itself, thereby increasing the material storage capacity of the stockyard, while also reducing the power consumption of the equipment. For example... Figure 8 The image shows a direct comparison between the tilting-head side scraper reclaimer with the novel structure of this invention and a conventional tilting-head side scraper reclaimer placed in the same position. Clearly, B2 > B1, H2 < H1. The increased material pile width and decreased guide chute height achieve the goals of increasing material pile capacity and reducing equipment operating power consumption.

Claims

1. A novel combined structure of a material guide chute and a fixed traveling end beam for a scraper reclaimer, characterized in that: The material guide trough (1) is inclined at 35°, a fixed walking end beam (2) with a central concave shape for placing the material guide trough (1), and a reinforcing beam (3) that passes through the width direction of the material guide trough (1) and is connected to the fixed walking end beam (2) as a whole; the material guide trough (1) has a scraper running part (4) with a scraper, and the material guide trough (1) is provided with an upper guide rail (5) and a lower guide rail (6) to support the scraper running part (4); the reinforcing beam (3) is connected to the upper guide rail (5) through an upper support (7), and the reinforcing beam (3) is connected to the lower guide rail (6) through a lower support (8).

2. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The material guide trough (1) is a concave conveying trough made of inclined steel plates. Wear-resistant steel plates are provided at the bottom and on both sides. The inclination angle is designed to be 35° according to the characteristics of the conveyed material.

3. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The cross-section of the fixed walking end beam (2) is a box-shaped structure, with wheels and walking mechanisms at both ends. The cross-section of the middle material guide trough (1) is a recessed box-shaped structure with the upper wing plate placed at an inclination of 35°. The material guide trough (1) is welded to the middle recessed area of ​​the fixed walking end beam (2).

4. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The reinforcing beam (3) is a rectangular steel beam that runs through the material guide chute (1) and is connected at both ends to the non-recessed parts of the centrally recessed fixed walking end beam (2).

5. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 4, characterized in that: The reinforcing beam (3) serves as reinforcement of the stiffness and strength of the cross section at the recessed part of the fixed walking end beam (2), and as support for the upper guide rail (5) and lower guide rail (6) in the material guide trough (1). It also serves as a lateral support for the material guide trough (1), increasing the stiffness of the material guide trough (1).

6. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The scraper running part (4) is a scraper driven by a running chain, which scrapes the material on the material pile into the material guide chute (1) and lifts it to the top before it falls onto the discharge belt conveyor (10).

7. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The upper guide rail (5) is made of steel sections and is supported on the reinforcing beam (3) by the upper support (7).

8. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The lower guide rail (6) is made of spliced ​​steel sections and is supported on the reinforcing beam (3) by the lower support (8).

9. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 1, characterized in that: The upper support (7) and lower support (8) are steel structural components, and the upper guide rail (5) and lower guide rail (6) are connected to the reinforcing beam (3).

10. The novel combined structure of the material guide chute and the fixed traveling end beam for the scraper reclaimer according to claim 6, characterized in that: The discharge belt conveyor (10) is located below the discharge chute (9).

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