Drag chain conveying mechanism of leacher

Abstract

The drag chain conveying mechanism comprises a box body, an upper grid plate, a lower grid plate and a transmission annular drag chain are arranged in the box body, scraping plates are evenly distributed on the annular drag chain, sliding grooves are formed in the two ends of each scraping plate, sliding rods are arranged in the positions, above the upper grid plate and the lower grid plate, in the box body, and the sliding rods support the scraping plates through the sliding grooves. The feeding end of the upper grid plate is provided with an upper guide assembly matched with the scraping plate, and the feeding end of the lower grid plate is provided with a lower guide assembly matched with the scraping plate. The sliding chutes and the sliding rods are matched to support the scraping plate, so that the scraping plate is prevented from damaging the grid plate, and meanwhile, the filtering area of the grid plate is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of leaching device technology, and in particular to a drag chain conveying mechanism for a leaching device. Background Technology

[0002] The leaching unit mainly consists of an annular cable chain, an upper grid plate, and a lower grid plate. The annular cable chain drives a scraper, which in turn moves the material to be leached along the upper or lower grid plate, completing the oil extraction process as the material moves. Because the annular cable chain and scraper are relatively heavy, the middle section of the chain inevitably experiences some sag. Therefore, a certain gap needs to be maintained between the scraper and the upper or lower grid plate to prevent damage during scraper movement. In existing technologies, some leaching units incorporate tracks on the upper and lower grid plates to support the scraper and prevent sag, but this reduces the filtration area of ​​the upper and lower grid plates. Furthermore, when the material layer conveyed by the scraper is thick, such as above 0.85 meters, the layer becomes dense due to its weight and the oil extraction process, easily causing blockages between adjacent scrapers during discharge or pouring. Utility Model Content

[0003] This utility model proposes a drag chain conveying mechanism for an extractor, which uses the cooperation of a chute and a slide bar to support the scraper, preventing the scraper from damaging the grid plate, while not affecting the filtration area of ​​the grid plate.

[0004] The technical solution of this utility model is implemented as follows: a drag chain conveying mechanism for an extractor includes a housing, an upper grid plate, a lower grid plate, and a driving annular drag chain arranged inside the housing. Scrapers are evenly distributed on the annular drag chain, and grooves are provided at both ends of the scrapers. Slide rods are provided in the housing above the upper and lower grid plates, and the slide rods support the scrapers through the grooves. An upper guide assembly that cooperates with the scrapers is provided at the feed end of the upper grid plate, and a lower guide assembly that cooperates with the scrapers is provided at the feed end of the lower grid plate.

[0005] Furthermore, the upper guide component is an upwardly inclined arc-shaped slide, which corresponds to the rollers of the annular cable chain, and the rollers of the annular cable chain move along the arc-shaped slide.

[0006] Furthermore, the lower guide assembly is an inclined downward arc-shaped slide, which corresponds to the rollers of the annular cable chain, and the rollers of the annular cable chain move along the arc-shaped slide.

[0007] Furthermore, the scraper is vertically slidable along the annular cable chain, and a corrugated bar is provided at the material drop point or discharge point inside the box. The corrugated bar is located on the lower side of the scraper, and the annular cable chain drives the scraper to move along the corrugated bar.

[0008] The beneficial effects of this utility model are:

[0009] This invention uses a combination of a sliding groove and a sliding rod to support the scraper, preventing it from falling and damaging the grid. The upper and lower guide components facilitate the movement of the scraper by the annular drag chain, allowing the sliding rod to pass smoothly through the sliding groove and ensuring the scraper moves smoothly. Since the sliding rod is located on the upper housing, it does not affect the filtration area of ​​the grid.

[0010] This invention utilizes a vertically sliding scraper design. When the scraper enters the material drop or discharge point, it works in conjunction with a corrugated rod to cause the scraper to vibrate vertically. This minimizes the adhesion between the scraper and the material, facilitating rapid subsequent material drop. Simultaneously, it reduces the impact of the scraper's vertical vibration on the cable chain, avoiding increased wear and breakage of the cable chain. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the leaching device.

[0013] Figure 2 for Figure 1 A magnified view of part A in the image;

[0014] Figure 3 This is a schematic diagram of the scraper's structure;

[0015] Figure 4 This is a schematic diagram of the scraper structure in Example 2;

[0016] Figure 5 This is a schematic diagram of the U-shaped connecting plate.

[0017] Box body 1, upper grid plate 2, lower grid plate 3, annular cable chain 4, scraper 5, slide groove 6, slide bar 7, plate body 8, vertical reinforcing bar 9, horizontal reinforcing bar 10, U-shaped connecting plate 11, first vertical sliding hole 12, bottom reinforcing plate 13, second vertical sliding hole 14, cable chain pin 15, corrugated bar 16, upper guide assembly 17, lower guide assembly 18. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In this utility model, the terms "upper" and "lower" are relative to... Figure 1 The positional relationship is shown.

[0020] Example 1

[0021] like Figure 1 and 3 As shown, a drag chain conveying mechanism for an extractor includes a housing 1, an upper grid plate 2 and a lower grid plate 3 fixed inside the housing 1, and a drive ring drag chain 4 also provided inside the housing 1. The ring drag chain 4 is supported by a sprocket driven by a motor, and scrapers 5 are evenly distributed on the ring drag chain 4. The scrapers 5 are fixedly connected to the ring drag chain 4. The above structure belongs to the prior art.

[0022] Both ends of the scraper 5 are provided with sliding grooves 6. Sliding rods 7 are fixed inside the housing 1 above the upper grid plate 2 and the lower grid plate 3. The sliding rods 7 are arranged one-to-one with the sliding grooves 6, and the sliding rods 7 support the scraper 5 through the sliding grooves 6. The cooperation of the sliding grooves 6 and the sliding rods 7 serves two purposes: firstly, it supports the scraper 5, ensuring that its height remains basically consistent when moving on the corresponding grid plate, preventing it from shifting downwards; secondly, it ensures the gap between the scraper 5 and the corresponding grid plate, avoiding damage to the grid plate. Furthermore, this structure is not located on the upper surface of the upper grid plate 2 and the lower grid plate 3, so it does not affect the filtration area of ​​the upper grid plate 2 and the lower grid plate 3.

[0023] The upper guide assembly 17, which cooperates with the scraper 5, is fixed at the feed end of the upper grid plate 2. The upper guide assembly 17 is an upward-sloping arc-shaped slide, with the opening of the arc-shaped slide facing downward. The arc-shaped slide corresponds to the roller of the annular drag chain 4. The roller of the annular drag chain 4 moves along the arc-shaped slide, which facilitates the slide rod 7 to enter the slide groove 6, thereby allowing the slide groove 6 of the scraper 5 to move along the slide rod 7.

[0024] The feed end of the lower grid plate 3 is fixed with a lower guide assembly 18 that cooperates with the scraper 5. The lower guide assembly 18 is an inclined downward arc-shaped slide. The opening of the arc-shaped slide faces upward. The arc-shaped slide corresponds to the roller of the annular drag chain 4. The roller of the annular drag chain 4 moves along the arc-shaped slide, which facilitates the slide rod 7 to enter the slide groove 6, thereby allowing the slide groove 6 of the scraper 5 to move along the slide rod 7.

[0025] Example 2

[0026] This embodiment is basically the same as the previous embodiment, except that, as Figure 3 , 4As shown in Figure 5, the scraper 5 is vertically slidable along the annular cable chain 4. The scraper 5 includes a plate body 8, with vertical reinforcing rods 9 fixed at intervals on one side of the plate body 8. The vertical reinforcing rods 9 are connected by horizontal reinforcing rods 10, increasing the strength of the plate body 8. A U-shaped connecting plate 11 is connected to the outer chain plate of the annular cable chain 4. The U-shaped connecting plate 11 has a first vertical sliding hole 12, which corresponds one-to-one with the horizontal reinforcing rod 10. The plate body 8 is placed inside the U-shaped connecting plate 11, and the horizontal reinforcing rod 10 passes through the first vertical sliding hole 12. A bottom reinforcing plate 13 is fixed to the other side of the plate body 8. The bottom reinforcing plate 13 has a second vertical sliding hole 14, which is connected to the adjacent cable chain pin 15. With the above structure, the cable chain drives the scraper 5 to move, and the scraper 5 can also slide vertically.

[0027] like Figure 2 As shown, corrugated rods 16 are fixed at both the material feeding and discharging points inside the housing 1. The corrugated rods 16 are located below the scraper 5. The annular cable chain 4 drives the scraper 5 to move along the corrugated rods 16, and the corrugated rods 16 are used for the vertical vibration of the scraper 5. The scraper 5 and the annular cable chain 4 are vertically slidably arranged. As the scraper 5 moves along the corresponding corrugated rods 16, it pushes the scraper 5 to move up and down, which has little impact on the annular cable chain 4 and reduces the probability of the annular cable chain 4 breaking due to vibration.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 drag chain conveyor mechanism of a leaching device, comprising a box, an upper grate, a lower grate and a transmission ring-shaped drag chain arranged in the box, the ring-shaped drag chain being provided with scrapers uniformly distributed thereon, characterized in that: The two ends of the scraper are provided with sliding grooves, the box above the upper and lower grid plates is provided with sliding rods, the sliding rods support the scraper through the sliding grooves, the feeding end of the upper grid plate is provided with an upper guide assembly matched with the scraper, and the feeding end of the lower grid plate is provided with a lower guide assembly matched with the scraper.

2. A drag chain conveyor mechanism for an infuser according to claim 1, wherein: The upper guide assembly is an upwardly-inclined arc-shaped slide, the arc-shaped slide corresponds to the rollers of the annular tow chain, and the rollers of the annular tow chain move along the arc-shaped slide.

3. A drag chain conveyor mechanism for an infuser according to claim 1 or 2, wherein: The lower guide assembly is a downwardly-inclined arc-shaped slide, the arc-shaped slide corresponds to the rollers of the annular tow chain, and the rollers of the annular tow chain move along the arc-shaped slide.

4. A drag chain conveyor mechanism for an infuser according to claim 1, wherein: The scraper is vertically slidably arranged along the annular tow chain, and a corrugated rod is arranged at a material falling position or a material discharging position in the box, the corrugated rod is located at the lower side of the scraper, and the corrugated rod is used for vertical vibration of the scraper.

Images