A shot material circulation system for wide-line shot blasting machine

Abstract

The utility model relates to the field of metal surface treatment, and in particular to a shot material circulation system for a wide-line shot blasting machine. The utility model mainly solves the problem of uneven shot supply in the existing wide-line shot blasting machine shot material circulation system. The cleaning chamber shot return hopper (1) is connected to a shot ash separator (6) through a feeding screw and a bucket elevator (4). An upper feeding screw (7) is provided at the lower part of the shot ash separator (6). A plurality of upper shot hoppers (9) are provided at the bottom of the upper feeding screw (7). An upper shot blaster (11) is provided at the bottom of the upper shot hopper (9); the end of the upper feeding screw (7) is connected to a shot material auxiliary box (12) through an overflow port. A lower feeding screw (20) is provided at the lower end outlet of the shot material auxiliary box (12). A plurality of lower shot hoppers (15) are provided at the bottom of the lower feeding screw (20). A lower shot blaster (19) is provided at the bottom of the lower shot hopper (15). The shot material circulation system is stable and reliable, and can ensure that the upper and lower shot blasting is uniform, thereby ensuring the shot blasting quality of the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of metal surface treatment, in particular to a shot material circulation system of a wide-line shot blasting machine. Background Art

[0002] With the improvement of productivity, achieving efficient and wide shot blasting during shot blasting is the goal pursued by more and more large steel mills, so wide-line shot blasting machines are the first choice for shot blasting. Wide-line shot blasting, due to the obstruction of the workpiece, the previous narrow-line shot supply method is difficult to meet the wide-line shot supply needs, and the shot circulation system is prone to uneven shot supply, which cannot guarantee the shot blasting quality. Summary of the invention

[0003] In order to overcome the deficiency of uneven shot supply in the existing wide-line shot blasting machine shot circulation system, the utility model provides a wide-line shot blasting machine shot circulation system, which is stable and reliable, can ensure uniform shot blasting on the upper and lower surfaces, and ensure the shot blasting quality of the workpiece.

[0004] The technical solution of the utility model is: a shot material circulation system of a wide-line shot blasting machine, comprising a cleaning chamber return shot hopper, the cleaning chamber return shot hopper is connected to a shot ash separator through a feeding screw and a bucket elevator, an upper distribution spiral is arranged at the lower part of the shot ash separator, a plurality of upper shot hoppers are arranged at the bottom of the upper distribution spiral, and an upper shot blaster is arranged at the bottom of each upper shot hopper; an overflow port is arranged at the end of the upper distribution spiral, a shot material auxiliary box is arranged at the lower end of the overflow port, a lower distribution spiral is arranged at the outlet of the lower end of the shot material auxiliary box, a plurality of lower shot hoppers are arranged at the bottom of the lower distribution spiral, and a lower shot blaster is arranged at the bottom of each lower shot hopper.

[0005] Furthermore, the feeding screw includes a lower longitudinal spiral, a lower transverse spiral, and an upper transverse spiral. The lower longitudinal spiral is located at the bottom of the shot return hopper in the cleaning chamber, the outlet of the lower longitudinal spiral is connected to the lower transverse spiral, the end of the lower transverse spiral is connected to the bucket elevator, the upper end of the bucket elevator is connected to the upper transverse spiral, and the bottom of the upper transverse spiral is connected to the shot ash separator.

[0006] Furthermore, the upper shot blasting wheel and the lower shot blasting wheel are respectively connected to the shot blasting chamber body, and the outlet of the shot blasting chamber body is connected to the lower transverse spiral.

[0007] Furthermore, a lower overflow port is provided at the end of the lower material distribution spiral, and the lower overflow port is connected to a bucket elevator or a shot blasting chamber.

[0008] Furthermore, it also includes a shot feeding bucket, and the outlet of the shot feeding bucket is connected to a bucket elevator or a shot blasting chamber.

[0009] Furthermore, it also includes a cleaning spiral, the upper end of which is connected to the shot ash separator, and the lower end of which is connected to the ash receiving hopper through a pipeline.

[0010] Furthermore, an upper shot material controller is provided at the bottom of the upper shot material hopper, and a lower shot material controller is provided at the bottom of the lower shot material hopper.

[0011] Furthermore, the shot material auxiliary box is provided with an upper material level meter and a lower material level meter respectively.

[0012] Furthermore, a plurality of auxiliary box shot material controllers are provided at the lower part of the shot material auxiliary box.

[0013] The utility model has the following beneficial effects: Due to the adoption of the above scheme, the various components in the shot blasting machine shot material circulation system can be arranged according to the working conditions of the shot blasting site, the working width is increased, the circulation layout is reasonable, and the problem of uneven supply of shot materials, especially the lower shot materials, is solved when the wide plates or wide large parts over 2m are shot blasted by passing through, ensuring the uniformity of the shot blasting on the upper and lower sides, and improving the shot blasting quality of the workpiece. The shot material circulation system is stable and reliable, and has outstanding performance in the continuous production of steel plants and shipyards, and can ensure that the material bins of all shot blasters above and below are always in a full supply state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a left view of the utility model;

[0016] Figure 3 It is a flow chart of the utility model.

[0017] In the figure, 1-the shot return hopper in the cleaning chamber, 2-the lower longitudinal spiral, 3-the lower transverse spiral, 4-the bucket elevator, 5-the upper transverse spiral, 6-the shot ash separator, 7-the upper distribution spiral, 8-the cleaning spiral, 9-the upper shot hopper, 10-the upper shot controller, 11-the upper shot blasting machine, 12-the shot auxiliary box, 13-the upper material level meter, 14-the lower material level meter, 15-the lower shot hopper, 16-the lower shot controller, 17-the shot blasting chamber body, 19-the lower shot blasting machine, 20-the lower distribution spiral, and 21-the auxiliary box shot controller. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by "up", "down", "left", "right", "inside", "outside", "top" and "bottom" are all based on the directions or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] Depend on Figures 1 to 3 As shown, a wide-line shot blasting machine shot circulation system includes a cleaning chamber shot return hopper 1, the cleaning chamber shot return hopper 1 is connected to a shot ash separator 6 through a feeding screw and a bucket elevator 4, the feeding screw includes a lower longitudinal spiral 2, a lower transverse spiral 3, and an upper transverse spiral 5, the lower longitudinal spiral 2 is located at the bottom of the cleaning chamber shot return hopper 1, the outlet of the lower longitudinal spiral 2 is connected to the lower transverse spiral 3, the end of the lower transverse spiral 3 is connected to the bucket elevator 4, the upper end of the bucket elevator 4 is connected to the upper transverse spiral 5, and the bottom of the upper transverse spiral 5 is connected to the shot ash separator 6. The shot in the cleaning chamber shot return hopper 1 is transported to the bucket elevator 4 through the lower longitudinal spiral 2 and the lower transverse spiral 3, and is lifted to the upper transverse spiral 5 by the bucket elevator 4. Through the transportation of the upper transverse spiral 5, the shot enters the shot ash separator 6 in the form of a shot curtain, and the shot is purified and separated here.

[0021] The lower part of the shot ash separator 6 is respectively connected to the upper distribution screw 7. After the shot is separated by the shot ash separator 6, the clean steel shot enters the upper distribution screw 7. A plurality of upper shot hoppers 9 are arranged at the bottom of the upper distribution screw 7. Each upper shot hopper 9 is connected to an upper shot controller 10. The bottom of each upper shot hopper 9 corresponds to an upper shot blaster 11. During the shot blasting operation, the shot enters each upper shot hopper 9 from the upper distribution screw 7, and enters the upper shot blaster 11 through the upper shot hopper 9 for shot blasting. The upper feeding spiral 7 is provided with an overflow port at the end, and a pill material auxiliary box 12 is provided at the lower end of the overflow port. A plurality of auxiliary box pill material controllers 21 are provided at the bottom of the pill material auxiliary box 12, some of which correspond to the lower feeding spiral 20, and some of which are connected to the shot blasting chamber body 17 or the lower horizontal spiral 3. When the upper pill hopper 9 is ensured to have sufficient pills, the excess pills enter the pill material auxiliary box 12 through the overflow port, and are controlled by the controller on the pill material auxiliary box 12 to enter the lower feeding spiral 20. A plurality of lower pill hoppers 15 are provided at the bottom of the lower feeding spiral 20, and a lower shot blaster 19 is provided at the bottom of each lower pill hopper 15. Similarly, a lower shot blaster controller 16 is connected to each lower pill hopper 15. The number of the upper shot blaster 11 and the lower shot blaster 19 is not limited, and is increased or decreased according to the width of the shot blasting. During shot blasting, the workpiece to be processed is located between the upper shot blaster 11 and the lower shot blaster 19, and the shot blasting work is performed simultaneously by a plurality of upper and lower shot blasters. The shot auxiliary box 12 is provided with an upper level meter 13 and a lower level meter 14. When the lower level meter 14 reports that the shot is insufficient, the system automatically identifies it and automatically refills the circulating system through the shot controller of the shot hopper. When the upper level meter 13 reports that the circulating shot is sufficient, the feeding is stopped. If there is still excess shot, the auxiliary box shot controller 21 corresponding to the shot blasting chamber body 17 or the lower horizontal spiral 3 at the lower part of the shot auxiliary box 12 is opened to send the excess shot to the circulating system.

[0022] The upper shot blaster 11 and the lower shot blaster 19 are respectively connected to the shot blasting chamber body 17, and the outlet of the shot blasting chamber body 17 is connected to the lower transverse spiral 3. The shot materials ejected from the upper shot blaster 11 and the lower shot blaster 19 enter the shot blasting chamber body 17, and finally flow into the lower transverse spiral 3 to enter the next cycle. The lower distribution spiral 20 is provided with an overflow port, and the bottom of the overflow port is connected to the lower transverse spiral 3. The excess shot materials pass through the lower transverse spiral 3 and enter the bucket elevator 4 for recycling.

[0023] The shot material circulation system of the wide-line shot blasting machine also includes a cleaning spiral 8 and a shot replenishing hopper. The upper end of the cleaning spiral 8 is connected to the shot ash separator 6, and the lower end is connected to the ground ash receiving hopper through a quicksand pipeline. Because the working width is wide, the dust separated from the shot ash separator is sucked away by the dust removal pipeline to purify the steel shot. The impurities and debris in the steel shot enter the cleaning spiral 8, and are transported to the end of the equipment through the cleaning spiral 8 and dropped to the ground ash receiving hopper through the quicksand pipeline. The shot replenishing hopper is provided with a shot material controller, and the outlet of the shot replenishing hopper is connected to the bucket elevator 4 or the shot blasting chamber body 17, so that shot material can be replenished into the system at any time.

[0024] The working process of the shot circulation system of the wide-line shot blasting machine is as follows: the shot in the shot return hopper 1 of the cleaning chamber is transported to the lower transverse spiral 3 through the lower longitudinal spiral 2, and the shot is transported to the bucket elevator 4 by the lower transverse spiral 3. After the bucket elevator 4 is lifted to the top, the shot is sent to the upper transverse spiral 5. The shot in the upper transverse spiral 5 enters the shot ash separator 6. After the dust and broken shots in the shot are removed, the clean steel shot enters the upper distribution spiral 7, and then falls into each upper shot hopper 9 by the upper distribution spiral 7. The upper shot controller 10 controls the opening or closing of the outlet of the upper shot hopper 9. When the outlet is opened, the shot enters the upper shot blaster 11 to perform shot blasting on the upper surface of the workpiece. When the upper shot hopper 9 is full of shot, the excess shot enters the shot auxiliary box 12 through the overflow port at the end of the upper feeding screw 7, and the controller outlet corresponding to the lower feeding screw 20 on the shot auxiliary box 12 is opened, and the shot enters the lower feeding screw 20, and then enters the lower shot blaster 19 through the lower shot hopper 15 to perform shot blasting on the lower surface of the workpiece. When the lower shot hopper 15 is full of shot, the excess shot enters the lower transverse screw 3 through the overflow port at the end of the lower feeding screw 20, and then enters the bucket elevator 4 into circulation. When the level meter on the shot auxiliary box 12 shows that the shot is insufficient, the shot is replenished into the circulation through the shot replenishing bucket.

[0025] All parts in the shot material circulation system of the wide-line shot blasting machine are movable, so it can be arranged according to the working conditions of the shot blasting site. The circulation layout is reasonable, and multiple shot blasters are arranged in parallel, which solves the problem of uneven supply of shot materials, especially the lower shot materials, when the wide plates or large parts over 2m are shot blasted by through-type, ensuring uniform shot blasting on the upper and lower sides and the shot blasting quality of the workpiece. The shot material circulation system is stable and reliable, and has outstanding performance in the continuous production of steel mills and shipyards, and can ensure that the silos of all shot blasters above and below are always in a full supply state.

[0026] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A shot material circulation system for a wide-line shot blasting machine, comprising a cleaning chamber shot return hopper (1), characterized in that: The cleaning chamber shot return hopper (1) is connected to the shot ash separator (6) via a feeding screw and a bucket elevator (4); an upper distribution screw (7) is provided at the bottom of the shot ash separator (6); a plurality of upper shot hoppers (9) are provided at the bottom of the upper distribution screw (7); an upper shot blaster (11) is provided at the bottom of each upper shot hopper (9); an upper overflow port is provided at the end of the upper distribution screw (7); a shot auxiliary box (12) is provided at the lower end of the overflow port; a lower distribution screw (20) is provided at the outlet of the lower end of the shot auxiliary box (12); a plurality of lower shot hoppers (15) are provided at the bottom of the lower distribution screw (20); and a lower shot blaster (19) is provided at the bottom of each lower shot hopper (15).

2. The shot material circulation system of the wide-line shot blasting machine according to claim 1 is characterized in that: The feeding screw comprises a lower longitudinal screw (2), a lower transverse screw (3), and an upper transverse screw (5); the lower longitudinal screw (2) is located at the bottom of the shot return hopper (1) of the cleaning chamber; the outlet of the lower longitudinal screw (2) is connected to the lower transverse screw (3); the end of the lower transverse screw (3) is connected to a bucket elevator (4); the upper end of the bucket elevator (4) is connected to the upper transverse screw (5); and the bottom of the upper transverse screw (5) is connected to a shot ash separator (6).

3. The shot material circulation system of the wide-line shot blasting machine according to claim 2 is characterized in that: The upper shot blasting device (11) and the lower shot blasting device (19) are respectively connected to the shot blasting chamber body (17), and the outlet of the shot blasting chamber body (17) is connected to the lower transverse spiral (3).

4. The shot material circulation system of the wide-line shot blasting machine according to claim 3 is characterized in that: The end of the lower material distribution spiral (20) is provided with a lower overflow port, and the lower overflow port is connected to a bucket elevator (4) or a shot blasting chamber body (17).

5. The shot material circulation system of the wide-line shot blasting machine according to claim 4 is characterized in that: It also includes a shot replenishing bucket, the outlet of which is connected to a bucket elevator (4) or a shot blasting chamber body (17).

6. The shot material circulation system of the wide-line shot blasting machine according to claim 5 is characterized in that: It also comprises a cleaning spiral (8), the upper end of the cleaning spiral (8) being connected to the shot ash separator (6), and the lower end of the cleaning spiral (8) being connected to the ash receiving hopper via a pipeline.

7. The shot material circulation system of the wide-line shot blasting machine according to claim 6 is characterized in that: An upper pill material controller (10) is provided at the bottom of the upper pill material hopper (9), and a lower pill material controller (16) is provided at the bottom of the lower pill material hopper (15).

8. The shot material circulation system of the wide-line shot blasting machine according to claim 7 is characterized in that: An upper material level meter (13) and a lower material level meter (14) are respectively provided on the shot material auxiliary box (12).

9. The shot material circulation system of the wide-line shot blasting machine according to claim 8, characterized in that: A plurality of auxiliary box pill material controllers (21) are provided at the lower part of the pill material auxiliary box (12).

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