Center transmission thickener

Abstract

The utility model relates to a center transmission thickener which comprises a concentration cavity, a cross beam in the middle of the concentration cavity is downwards connected with a main shaft through the center of a motor transmission mechanism, the lower end of the main shaft is connected with a center compression frame, and the center compression frame comprises an upper truss, a center scraping plate and a lower guide cylinder. The central scraper is arranged in the upper truss and is of a regular trapezoidal structure, the inner end of the hanging rod is connected to the outer side of the upper truss, the lower guide cylinder is connected below the upper truss and is of an inverted-cone-shaped structure, the inverted-cone-shaped structure and the inverted-cone-shaped lower outlet of the concentration cavity are coaxial, and a gap is reserved between the outer wall of the lower guide cylinder and the lower outlet; two sides of the main shaft are respectively connected with two supporting arms which are vertical to the upper concentration scraping rods; the outermost ends of the two supporting arms are respectively connected with the middle parts of the two upper concentration scraping rods in a pulling manner through two pull rods towards two sides. The structure is simple, and the stability strength and the overall concentration efficiency of the overall structure suitable for sludge concentration can be considered.

Description

Technical Field

[0001] The utility model relates to a concentrating device, in particular to a central transmission concentrator. Background Art

[0002] Traditional center-drive concentrators are mostly used for dehydration in the mineral processing process, and their concentration efficiency requirements are not high. When used for sludge treatment, due to the significant differences in the characteristics and moisture content of sludge and ore sand, the existing diversion structure at the lower outlet directly discharges the uncompressed sludge in the middle. The concentration efficiency directly pressed out at the lower outlet cannot meet the requirements of sludge treatment. Summary of the Invention

[0003] The utility model provides a central transmission concentrator with a simple structure and capable of ensuring overall concentrating efficiency.

[0004] The technical solution adopted by the utility model is: a central transmission concentrator, including a concentration chamber, a crossbeam in the middle of the concentration chamber is connected to the main shaft downward through the center of the motor transmission mechanism, two upper concentration scrapers are symmetrically connected to the middle and lower part of the main shaft or on both sides of the lower part, the upper concentration scrapers are connected to the hanging rod downward, the lower part of the hanging rod is connected to the lower concentration scraper, and the lower concentration scraper is evenly spaced and hung with multiple rake heads downward. It is characterized in that: the lower end of the main shaft is connected to a central compression frame, the central compression frame includes an upper truss, a central scraper and a lower The guide tube, the upper truss is connected to the lower part or lower end of the main shaft, the central scraper is placed in the upper truss and is a right trapezoidal structure, the inner end of the hanging rod is connected to the outer side of the upper truss, the upper truss is connected to the lower guide tube, the lower guide tube is an inverted cone structure, the inverted cone structure is coaxial with the inverted cone lower outlet of the concentration chamber, and a gap is left between the outer wall of the lower guide tube and the lower outlet; two supporting arms perpendicular to the upper concentration scraper are connected to both sides of the main shaft, and the outermost ends of the two supporting arms are pulled to the middle parts of the two upper concentration scrapers through two pull rods on both sides.

[0005] The central scraper is connected to the bottom end surface of the main shaft corresponding to the main shaft axis.

[0006] The upper truss is in a regular trapezoidal structure.

[0007] The lower guide tube is not completely placed in the lower outlet.

[0008] The drag head is not parallel to the supporting arm.

[0009] The drag head is a plate structure.

[0010] The utility model sets a lower truss between the main shaft and the lower outlet, and the lower truss is externally connected to the lower concentrating scraper, which further improves the firmness and stability of the concentrating scraper structure. When used for sludge, the sludge contains water and the concentration reaction force is large, which can effectively avoid the reaction force during the concentrating rotation operation from damaging the structure, thereby improving the overall service life; the lower truss structure is combined with the built-in central scraper, which can scrape the central sludge toward the outside of the main shaft, and then the rake head concentrates and presses it out from the gap between the lower guide tube and the lower outlet, effectively avoiding the problem of reduced overall concentrating efficiency caused by direct discharge of sludge from the center of the traditional lower guide structure, thereby comprehensively improving the efficiency of the concentrator; the upper concentrating scraper is connected by the pull rod through the support arm, which further improves the firmness and stability of the concentrating scraper structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Top view of .

[0013] In the figure: concentration chamber 1, crossbeam 2, motor transmission mechanism 3, main shaft 4, upper concentration scraper 5, hanging rod 6, lower concentration scraper 7, rake head 8, supporting arm 9, pull rod 10, upper truss 11, central scraper 12, lower guide tube 13, lower outlet 14. DETAILED DESCRIPTION

[0014] The following is further explained with reference to the accompanying drawings.

[0015] Figure 1 、 2 As shown: a central transmission concentrator, a motor transmission mechanism 3 is set on the cross beam 2 in the middle of the concentrating chamber 1, the center of the motor transmission mechanism 3 is connected to the main shaft 4 downward, and two upper concentrating scrapers 5 are symmetrically connected to the two sides of the lower part of the main shaft 4 horizontally. The upper concentrating scraper 5 is connected to the hanging rod 6 downward, and the lower part of the hanging rod 6 is connected to the lower concentrating scraper 7. The lower concentrating scraper 7 is hung with multiple rake heads 8 at even intervals downward. Two supporting arms 9 perpendicular to the upper concentrating scraper are connected to both sides of the main shaft 4, and the outermost ends of the two supporting arms 9 are connected to the middle parts of the two upper concentrating scrapers 5 on both sides through two pull rods 10.

[0016] The lower part of the main shaft 4 is connected to the upper truss 11, and the upper truss 11 has a regular trapezoidal structure. The center of the bottom end of the main shaft 4 is connected to the central scraper 12, and the central scraper 12 has a regular trapezoidal structure. The central scraper 12 is placed in the upper truss 11. The lower end of the upper truss 11 is connected to the lower guide tube 13, and the lower guide tube 13 has an inverted cone structure. The inverted cone structure is coaxial with the inverted cone-shaped lower outlet 14 of the concentration chamber 1. There is a gap between the outer wall of the lower guide tube and the lower outlet, and the lower guide tube is not completely placed in the lower outlet.

[0017] In this embodiment, the drag head is a plate structure, and the drag head is not parallel to the supporting arm.

Claims

1. A central drive concentrator, comprising a concentrating chamber, wherein a crossbeam in the middle of the concentrating chamber is connected downwardly to a main shaft through the center of a motor drive mechanism, two upper concentrating scrapers are symmetrically connected horizontally to the middle and lower part of the main shaft or to both sides of the lower part, the upper concentrating scrapers are connected downwardly to hanging rods, the lower parts of the hanging rods are connected to lower concentrating scrapers, and the lower concentrating scrapers are connected downwardly to multiple rake heads at even intervals, characterized in that: The lower end of the main shaft is connected to a central compression frame, which includes an upper truss, a central scraper and a lower guide tube. The upper truss is connected to the lower part or lower end of the main shaft, the central scraper is placed in the upper truss and has a regular trapezoidal structure, the inner end of the hanging rod is connected to the outer side of the upper truss, the upper truss is connected to the lower guide tube, the lower guide tube has an inverted cone structure, the inverted cone structure is coaxial with the inverted cone lower outlet of the concentration chamber, and a gap is left between the outer wall of the lower guide tube and the lower outlet; two supporting arms perpendicular to the upper concentration scraper are connected to both sides of the main shaft, and the outermost ends of the two supporting arms are connected to the middle parts of the two upper concentration scrapers through two pull rods toward both sides.

2. A central transmission concentrator according to claim 1, characterized in that: The central scraper is connected to the bottom end surface of the main shaft corresponding to the main shaft axis.

3. The central transmission concentrator according to claim 1, characterized in that: The upper truss is in a regular trapezoidal structure.

4. The central transmission concentrator according to claim 1, characterized in that: The lower guide tube is not completely placed in the lower outlet.

5. The central transmission concentrator according to claim 1, characterized in that: The drag head is not parallel to the supporting arm.

6. A central transmission concentrator according to claim 1 or 5, characterized in that: The drag head is a plate structure.

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