Ash discharging ball valve of blast furnace

Abstract

The utility model relates to the technical field of ash discharging ball valves, in particular to a blast furnace ash discharging ball valve which comprises a valve body, a through hole is formed in the outer wall of the valve body, a transmission mechanism is rotationally connected in the through hole, a fixing lantern ring is arranged on the outer wall of the transmission mechanism in a sleeved mode, and a plurality of supporting rods are connected to the outer wall of the fixing lantern ring. A plurality of arc-shaped scrapers are arranged in an inner cavity of the valve body, connecting strips are connected between the arc-shaped scrapers, and the inner walls of the two arc-shaped scrapers are connected with the ends of the supporting rods. The ash discharging ball valve of the blast furnace can move in the valve body through the arc-shaped scraping piece, so that the arc-shaped scraping piece can scrape furnace ash on the inner wall of the valve body in the moving process, the situation that the furnace ash is attached to the inner wall of the valve body to affect the discharging amount is avoided, and meanwhile the situation that the ash discharging amount affects the ash discharging efficiency is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ash discharge ball valves, specifically a blast furnace ash discharge ball valve. Background Art

[0002] The working principle of the ash discharge ball valve is to make the valve unobstructed or blocked by rotating the valve stem. The pneumatic ball valve is easy to operate, small in size, can be made into a very large diameter, has reliable sealing, simple structure, convenient maintenance, and the sealing surface and the spherical surface are often in a closed state, not easily eroded by the medium, and is widely used in various industries. The pneumatic ash discharge ball valve and the plug valve belong to the same type of valve. Only its closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve opening and closing. The pneumatic ash discharge ball valve is mainly used in pipelines to cut off quickly, distribute and change the flow direction of the medium. The pneumatic ball valve is a new type of valve widely adopted in recent years. When the blast furnace discharges ash, an ash discharge ball valve is required for ash discharge.

[0003] When the blast furnace discharges ash, due to the inconsistent humidity of the discharged ash, the inner wall of the ash discharge ball valve will accumulate ash, which will cause the diameter of the ash discharge ball valve to become smaller. The decrease in the diameter of the ash discharge ball valve will lead to a longer ash discharge time, thus failing to meet the problem of efficient ash discharge of the blast furnace ash discharge ball valve.

[0004] Therefore, we propose a blast furnace ash discharge ball valve to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a blast furnace ash discharge ball valve to solve the problems raised in the above background art.

[0006] The technical solution of the utility model is: a blast furnace ash discharge ball valve, including:

[0007] A valve body, a through hole is opened on the outer wall of the valve body, a transmission mechanism is rotatably connected in the through hole, a fixed collar is sleeved on the outer wall of the transmission mechanism, a plurality of support rods are connected to the outer wall of the fixed collar, a plurality of arc-shaped scraping pieces are arranged in the inner cavity of the valve body, and a connecting strip is connected between the plurality of arc-shaped scraping pieces. Among them, the inner walls of two of the arc-shaped scraping pieces are connected to the ends of the plurality of support rods. The transmission mechanism can drive the fixed collar to move synchronously, and then the fixed collar is fixedly connected to the support rods through the four support rods. Then the support rods drive the arc-shaped scraping pieces, so that the arc-shaped scraping pieces can scrape the inner wall of the valve body when the valve body is opened, and thus the inner wall of the valve body will not adhere to furnace ash under the action of the arc-shaped scraping pieces.

[0008] Preferably, the transmission mechanism includes a rotating rod. One side of the rotating rod is fixedly connected with a first connecting rod. Side rotating shafts are arranged on both sides of the first connecting rod. The outer wall of the rotating rod is connected to the through hole through a sealing ring. One end of the rotating rod is rotatably connected with a supporting connecting rod. The supporting connecting rod is connected with a second connecting rod through a rotating shaft. And one end of the second connecting rod is connected with guide rods through rotating shafts on both sides thereof. One end of the guide rod is connected with a plug body. And the outer wall of the guide rod is fixedly connected with a fixed collar. The output shaft of the air cylinder can drive the pushing member to move upward. The upward moving pushing member pushes the side rotating shaft on the first connecting rod through its sliding groove. Then the first connecting rod drives the fixedly connected rotating rod to rotate in the through hole on the valve body. Immediately afterwards, the rotating rod drives the rotatably connected supporting connecting rod. The supporting connecting rod pulls the guide rod through the rotating shaft. At the same time, the guide rod pulls the plug body into the valve body to close it. On the contrary, the valve body can be opened through the air cylinder.

[0009] Preferably, a base is arranged near the lower surface of the valve body. A connecting frame is arranged on one side of the base. There are two connecting frames. And a cylinder is connected between the two connecting frames through a rotating shaft. The valve body can be conveniently controlled to be closed and opened through the air cylinder.

[0010] Preferably, the output shaft end of the air cylinder is connected with a pushing member. And sliding grooves are formed on both sides of the pushing member. The two sliding grooves are slidably connected with the first connecting rod through rotating shafts. The air cylinder pushing the pushing member can control the transmission mechanism to close and open the valve body.

[0011] Preferably, an inner connecting rod is arranged near the plug body on the inner wall of the valve body. And a limiting collar is arranged at the lower end of the inner connecting rod. The inner cavity of the limiting collar and the outer wall of the guide rod form a sliding connection. The guide rod can be limited to move in the limiting collar. In this way, the guide rod can conveniently control the opening and closing of the plug body to the valve body during the moving process.

[0012] Preferably, the plug body is in a frustum shape structure. And the outer wall of the plug body is in extrusion connection with the inner wall of the valve body. Through the increasing diameter of the plug body, the plug body can conveniently squeeze and close the valve body. The valve body can be effectively controlled to be closed through the closing extrusion.

[0013] Preferably, there are five groups of arc-shaped scraping blades. And there are two arc-shaped scraping blades in each group. And the two arc-shaped scraping blades form a circular ring structure. Through the arc-shaped scraping blades moving in the valve body, the arc-shaped scraping blades can scrape the furnace ash on the inner wall of the valve body during the moving process. Furthermore, it can prevent the furnace ash from adhering to the inner wall of the valve body and affecting the discharge amount.

[0014] The present utility model provides a blast furnace ash discharge ball valve through improvement. Compared with the prior art, it has the following improvements and advantages:

[0015] The ash-discharging ball valve of the utility model for blast furnace can clean the inner wall of the valve body during the opening and closing processes. Specifically, the transmission mechanism can control the opening and closing of the valve body. During the opening process of the valve body, the transmission mechanism can drive the fixed collar to move synchronously. Then, the fixed collar is fixedly connected to the support rods through the four support rods. Next, the support rods drive the arc-shaped scraper. In this way, when the valve body is opened, the arc-shaped scraper can scrape the inner wall of the valve body, and under the action of the arc-shaped scraper, the inner wall of the valve body will not adhere to the furnace ash, thereby avoiding the influence of the adhered furnace ash on the discharge amount on the inner wall of the valve body. Brief Description of the Drawings

[0016] The following further explains the utility model in conjunction with the drawings and embodiments:

[0017] Figure 1 is the three-dimensional structure diagram of the utility model;

[0018] Figure 2 is the structure diagram of the valve body and the base of the utility model;

[0019] Figure 3 is the structure diagram of the transmission mechanism of the utility model;

[0020] Figure 4 is the internal structure diagram of the valve body of the utility model

[0021] Figure 5 is the structure diagram of the arc-shaped scraper and the connecting bar of the utility model.

[0022] Explanation of the Reference Numerals in the Drawings:

[0023] 1. Valve body; 2. Base; 3. Connecting frame; 4. Cylinder; 5. Pushing member; 6. Chute; 7. Transmission mechanism; 701. Rotating rod; 702. First connecting rod; 703. Side rotating shaft; 704. Supporting connecting rod; 705. Second connecting rod; 706. Guide rod; 707. Plug body; 8. Inner connecting rod; 9. Limiting collar; 10. Arc-shaped scraper; 11. Connecting bar; 12. Support rod; 13. Fixed collar. Detailed Embodiment

[0024] Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the utility model.

[0025] Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] The present utility model provides a blast furnace ash discharge ball valve through improvement. The technical solution of the present utility model is as follows:

[0028] As Figure 1 - Figure 5 shown, the technical solution of the present utility model is: a blast furnace ash discharge ball valve, including:

[0029] A valve body 1, a through hole is provided on the outer wall of the valve body 1, a transmission mechanism 7 is rotatably connected in the through hole, a fixed collar 13 is sleeved on the outer wall of the transmission mechanism 7, several support rods 12 are connected to the outer wall of the fixed collar 13, several arc-shaped scraping blades 10 are arranged in the inner cavity of the valve body 1, and a connecting strip 11 is connected between several arc-shaped scraping blades 10. Among them, the inner walls of two arc-shaped scraping blades 10 are connected to the ends of several support rods 12.

[0030] When the valve body 1 discharges ash from the blast furnace, the opening and closing of the valve body 1 can be controlled through the transmission mechanism 7. During the opening process of the valve body 1, the transmission mechanism 7 can drive the fixed collar 13 to move synchronously. Then, the fixed collar 13 is fixedly connected to the support rods 12 through four support rods 12. Then, the support rods 12 drive the arc-shaped scraping blades 10, so that the arc-shaped scraping blades 10 can scrape the inner wall of the valve body 1 when the valve body 1 is opened. Thus, under the action of the arc-shaped scraping blades 10, the inner wall of the valve body 1 will not adhere to furnace ash.

[0031] Referring to Figure 3 , the transmission mechanism 7 includes a rotating rod 701. A first connecting rod 702 is fixedly connected to one side of the rotating rod 701. Side rotating shafts 703 are arranged on both sides of the first connecting rod 702. The outer wall of the rotating rod 701 is connected to the through hole through a sealing ring. One end of the rotating rod 701 is rotatably connected to a support connecting rod 704. The support connecting rod 704 is connected to a second connecting rod 705 through a rotating shaft. And one end of the second connecting rod 705 is connected to guide rods 706 through rotating shafts on both sides. One end of the guide rod 706 is connected to a plug body 707, and the outer wall of the guide rod 706 is fixedly connected to the fixed collar 13.

[0032] When the valve body 1 is working, the cylinder 4 is started, and then the output shaft of the cylinder 4 can drive the pusher 5 to move upward. The upward-moving pusher 5 pushes the side rotating shaft 703 on the first connecting rod 702 through its chute 6. Then, the first connecting rod 702 drives the fixedly connected rotating rod 701 to rotate in the through hole on the valve body 1. Immediately afterwards, the rotating rod 701 drives the rotatably connected connecting rod 704. The connecting rod 704 pulls the guide rod 706 through the rotating shaft. At the same time, the guide rod 706 pulls the plug body 707 into the valve body 1 to close it. When ash needs to be unloaded, only need to pull down the pusher 5 through the cylinder 4. Then, under the driving action of the pusher 5, the plug body 707 is pushed out of the inner cavity of the valve body 1, and then the valve body 1 can discharge ash.

[0033] Refer to Figure 1 , a base 2 is arranged near the lower surface of the valve body 1. A connecting frame 3 is arranged on one side of the base 2. There are two connecting frames 3, and a cylinder 4 is connected between the two connecting frames 3 through a rotating shaft. The output shaft end of the cylinder 4 is connected with a pusher 5, and chutes 6 are arranged on both sides of the pusher 5. The two chutes 6 are slidably connected with the first connecting rod 702 through rotating shafts.

[0034] The cylinder 4 can drive the pusher 5. In this way, the pusher 5 can drive the side rotating shaft 703 to move in the chute 6. Then, the side rotating shaft 703 can drive the first connecting rod 702, the rotating rod 701, the connecting rod 704 and the guide rod 706 to transmit power. Furthermore, under the action of the guide rod 706, the movement of the plug body 707 can be controlled, and controlling the plug body 707 can control the opening and closing of the valve body 1.

[0035] Refer to Figure 1 , an inner connecting rod 8 is arranged on the inner wall of the valve body 1 near the plug body 707, and a limiting collar 9 is arranged at the lower end of the inner connecting rod 8. The inner cavity of the limiting collar 9 and the outer wall of the guide rod 706 form a sliding connection.

[0036] When the guide rod 706 moves horizontally, the guide rod 706 can be limited to move in the limiting collar 9. In this way, the guide rod 706 can conveniently control the opening and closing of the plug body 707 to the valve body 1 during the movement process.

[0037] Refer to Figure 3 , the plug body 707 has a frustum-shaped structure, and the outer wall of the plug body 707 is in extrusion connection with the inner wall of the valve body 1.

[0038] Since the diameter of the plug body 707 increases incrementally, the maximum diameter of the plug body 707 can close the valve body 1. At the same time, when the plug body 707 is removed from the inner cavity of the valve body 1, the valve body 1 can remain unobstructed. Furthermore, the valve body 1 can conveniently discharge ash.

[0039] Refer to Figure 4 and refer to Figure 5, there are five groups of arc-shaped blades 10, and each group of arc-shaped blades 10 has two, and the two arc-shaped blades 10 form an annular structure.

[0040] The guide rod 706 can drive the fixed collar 13 to move synchronously. Then, the fixed collar 13 is fixedly connected to the support rods 12 through four support rods 12. Then, the support rods 12 drive the five groups of arc-shaped blades 10. In this way, when the valve body 1 is opened, the arc-shaped blades 10 can scrape the inner wall of the valve body 1. Thus, under the action of the arc-shaped blades 10, the inner wall of the valve body 1 will not be attached with furnace ash.

[0041] Working principle: When the valve body 1 discharges ash from the blast furnace, the air cylinder 4 is started. Then, the output shaft of the air cylinder 4 can drive the pusher 5 to move downward. The downward-moving pusher 5 pulls the side rotating shaft 703 on the first connecting rod 702 through its chute 6. Then, the first connecting rod 702 drives the fixedly connected rotating rod 701 to rotate in the through hole on the valve body 1. Immediately afterwards, the rotating rod 701 drives the rotationally connected connecting rod 704. The connecting rod 704 pushes the guide rod 706 through the rotating shaft. At the same time, the guide rod 706 pushes the plug 707 out of the valve body 1. In this way, the valve body 1 can discharge ash after being opened;

[0042] During the opening process of the valve body 1, the transmission mechanism 7 can drive the fixed collar 13 to move synchronously. Then, the fixed collar 13 is fixedly connected to the support rods 12 through four support rods 12. Then, the support rods 12 drive the arc-shaped blades 10. In this way, when the valve body 1 is opened, the arc-shaped blades 10 can scrape the inner wall of the valve body 1. Thus, under the action of the arc-shaped blades 10, the inner wall of the valve body 1 will not be attached with furnace ash. This is the working principle of this blast furnace ash discharge ball valve.

[0043] The above description enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Blast furnace ash unloading ball valve, characterized in that: include: A valve body (1), wherein a through hole is formed on the outer wall of the valve body (1), a transmission mechanism (7) is rotatably connected in the through hole, a fixing ring (13) is sleeved on the outer wall of the transmission mechanism (7), a plurality of support rods (12) are connected to the outer wall of the fixing ring (13), a plurality of arc-shaped scrapers (10) are arranged in the inner cavity of the valve body (1), and a connecting strip (11) is connected between the plurality of arc-shaped scrapers (10), wherein the inner walls of two of the arc-shaped scrapers (10) are connected to the ends of the plurality of support rods (12).

2. The blast furnace ash unloading ball valve according to claim 1, characterized in that: The transmission mechanism (7) comprises a rotating rod (701), one side of the rotating rod (701) is fixedly connected to a first connecting rod (702), both sides of the first connecting rod (702) are provided with side rotating shafts (703), the outer wall of the rotating rod (701) is connected to the through hole via a sealing ring, one end of the rotating rod (701) is rotatably connected to a supporting connecting rod (704), the supporting connecting rod (704) is connected to a second connecting rod (705) via a rotating shaft, and one end of the second connecting rod (705) is located on both sides thereof and is connected to a guide rod (706) via a rotating shaft, one end of the guide rod (706) is connected to a plug body (707), and the outer wall of the guide rod (706) is fixedly connected to a fixing ring (13).

3. The blast furnace ash unloading ball valve according to claim 1, characterized in that: The valve body (1) is provided with a base (2) near its lower surface, and a connecting frame (3) is provided on one side of the base (2). Two connecting frames (3) are provided, and a cylinder (4) is connected between the two connecting frames (3) via a rotating shaft.

4. The blast furnace ash unloading ball valve according to claim 3, characterized in that: The output shaft end of the cylinder (4) is connected to a push piece (5), and sliding grooves (6) are provided on both sides of the push piece (5). The two sliding grooves (6) are slidably connected to the first connecting rod (702) via a rotating shaft.

5. The blast furnace ash unloading ball valve according to claim 2, characterized in that: An inner connecting rod (8) is provided on the inner wall of the valve body (1) near the plug body (707), and a limit collar (9) is provided at the lower end of the inner connecting rod (8), wherein the inner cavity of the limit collar (9) is in sliding connection with the outer wall of the guide rod (706).

6. The blast furnace ash unloading ball valve according to claim 2, characterized in that: The plug body (707) has a truncated cone-shaped structure, and the outer wall of the plug body (707) is extruded and connected to the inner wall of the valve body (1).

7. The blast furnace ash unloading ball valve according to claim 1, characterized in that: Five groups of the arc-shaped scrapers (10) are provided, and each group of the arc-shaped scrapers (10) is provided with two, and the two arc-shaped scrapers (10) form a circular ring structure.

Images