Clock valve for coal injection system

Abstract

The utility model discloses a bell valve for a coal injection system, which relates to the technical field of blast furnace coal injection equipment, and comprises a valve body, the surface of the valve body is fixedly connected with a connecting pipe, the inside of the valve body is rotatably connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the connecting pipe. A fixing rod is fixedly connected to the end, away from the rotating shaft, of the connecting rod, a valve plate is fixedly connected to the surface of the fixing rod, a fixing ring is fixedly connected to the interior of the connecting pipe, a sliding ring is slidably connected to the interior of the fixing ring, a convex ring is fixedly connected to the surface of the valve plate, and the convex ring corresponds to the sliding ring; according to the clock valve for the coal injection system, through the arrangement of the sliding ring and the first spring, when the valve plate is not closed, the sliding ring is flush with the surface of the fixed ring, so that coal cinder is blocked, the coal cinder is prevented from entering the fixed ring, the influence of the coal cinder on subsequent sealing of the valve plate is avoided, and the sealing effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace coal injection equipment technical field especially relates to a bell valve for coal injection system. BACKGROUND

[0002] The modern blast furnace's ironmaking needs to adopt big coal injection to reduce coke ratio, in the coal injection technological process, the bell valve is the key equipment connecting the pulverized coal bin and the injection tank, and its main role is to seal and pressure-keeping for the injection tank, and the sealing effect of the bell valve plays a crucial role in the operation of the coal injection system.

[0003] The utility model discloses a bell valve's sealing device for blast furnace coal injection is announced No. CN208919366U, and the external power source drives the rotation of the rotating shaft, drives the swing of swing arm and valve plate to realize the clockwise or counterclockwise swing of a circular track, thereby realizing the opening and closing of the sealing device, increasing the sealing reliability, prolonging the replacement cycle of the sealing ring, reducing the equipment maintenance workload, improving the operation rate of the coal injection equipment, and laying a solid foundation for increasing the coal injection amount of the blast furnace, reducing the cost and increasing the yield.

[0004] However, in the process of implementing the device, the device is sealed by driving the valve plate and the step sealing ring to tightly adhere to each other through the external power source. However, the device is used for transporting coal, and the step sealing ring is concave, which causes a part of the coal to be left inside the step sealing ring, thereby affecting the sealing of the valve plate and the step sealing ring. Therefore, a bell valve for coal injection system is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a bell valve for coal injection system, which can solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a bell valve for coal injection system, comprising a valve body, a connecting pipe fixedly connected to the surface of the valve body, a rotating shaft rotatably connected to the inside of the valve body, a connecting rod fixedly connected to the surface of the rotating shaft, a fixed rod fixedly connected to the end of the connecting rod away from the rotating shaft, a valve plate fixedly connected to the surface of the fixed rod, a fixed ring fixedly connected to the inside of the connecting pipe, a sliding ring slidably connected to the inside of the fixed ring, a convex ring fixedly connected to the surface of the valve plate, and the convex ring corresponding to the sliding ring.

[0007] Preferably, the inside of the fixed ring is fixedly connected with a first spring, and the end of the first spring away from the fixed ring is fixedly connected with the sliding ring.

[0008] Preferably, the surface of the valve body is fixedly connected with a motor, the output end of the motor is rotatably connected with the inside of the valve body, and the output end of the motor is fixedly connected with the rotating shaft.

[0009] Preferably, the surface of the valve body is fixedly connected with a fixed shell, and the motor is located inside the fixed shell.

[0010] Preferably, the inside of the fixed ring is slidably connected with a guide rod, and one end of the guide rod is fixedly connected with the sliding ring.

[0011] Preferably, the surface of the convex ring is fixedly connected with a rubber pad, and the rubber pad is in contact with the sliding ring.

[0012] Preferably, the inside of the valve body is fixedly connected with a fixed tube, the inside of the fixed tube is slidably connected with a sliding rod, the inside of the fixed tube is fixedly connected with a second spring, and one end of the second spring, away from the fixed tube, is fixedly connected with the sliding rod.

[0013] Preferably, the surface of the sliding rod is fixedly connected with a buffer pad, and the buffer pad is in contact with the valve plate.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The coal injection system clock valve, through the setting of the sliding ring and the first spring, makes the sliding ring flush with the surface of the fixed ring when the valve plate is not closed, thereby blocking the coal cinder, avoiding the coal cinder from entering the inside of the fixed ring, avoiding the influence of the coal cinder on the sealing of the subsequent valve plate, and improving the sealing effect of the device.

[0016] The coal injection system clock valve, through the setting of the sliding rod and the second spring, avoids the collision of the valve plate with the inner wall of the valve body after turning over, and protects the valve plate and the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further illustrated below in combination with the drawings and examples:

[0018] Figure 1 It is surface structure schematic diagram of valve body of the utility model;

[0019] Figure 2 It is inside structure schematic diagram of valve body of the utility model;

[0020] Figure 3 It is inside structure schematic diagram of fixed ring of the utility model;

[0021] Figure 4 It is surface structure schematic diagram of valve plate of the utility model;

[0022] Figure 5 It is inside structure schematic diagram of fixed tube of the utility model;

[0023] Figure 6The internal structure diagram of the fixed shell is shown in the utility model.

[0024] The utility model discloses a valve body 1 is fixedly connected with motor 18, and the output of motor 18 is rotatably connected with the inside of valve body 1, and the output of motor 18 is fixedly connected with rotating shaft 8, is driven to rotating shaft 8 through the setting of motor 18. DETAILED DESCRIPTION

[0025] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawing, and the drawing is used to supplement the description of the text part, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides a kind of bell valve for coal injection system, including valve body 1, the surface of valve body 1 is fixedly connected with connecting pipe 3, the inside of valve body 1 is rotatably connected with rotating shaft 8, the surface of rotating shaft 8 is fixedly connected with connecting rod 7, the end of connecting rod 7 away from rotating shaft 8 is fixedly connected with fixed rod 6, the surface of fixed rod 6 is fixedly connected with valve plate 5, the inside of connecting pipe 3 is fixedly connected with fixed ring 4, the inside of fixed ring 4 is slidably connected with sliding ring 12, the surface of valve plate 5 is fixedly connected with convex ring 15, convex ring 15 corresponds with sliding ring 12, the inside of fixed ring 4 is fixedly connected with first spring 14, the end of first spring 14 away from fixed ring 4 is fixedly connected with sliding ring 12, to support by first spring 14, so that first spring 14 supports sliding ring 12, to avoid that cinder enters the inside of fixed ring 4, and the sealing of valve plate 5 is influenced.

[0027] The surface of valve body 1 is fixedly connected with motor 18, and the output of motor 18 is rotatably connected with the inside of valve body 1, and the output of motor 18 is fixedly connected with rotating shaft 8, is driven to rotating shaft 8 through the setting of motor 18.

[0028] The surface of valve body 1 is fixedly connected with fixed shell 2, and motor 18 is located in the inside of fixed shell 2, and motor 18 is covered by fixed shell 2, to protect motor 18.

[0029] The inside of fixed ring 4 is slidably connected with guide rod 13, and one end of guide rod 13 is fixedly connected with sliding ring 12, to guide and limit the sliding of sliding ring 12 by the setting of guide rod 13, to avoid that sliding ring 12 deviates when sliding, and first spring 14 is twisted.

[0030] The surface of the convex ring 15 is fixedly connected with a rubber pad 16, which is in contact with the sliding ring 12, thereby filling the gap between the convex ring 15 and the sliding ring 12, thereby further increasing the sealing effect of the device.

[0031] The inside of the valve body 1 is fixedly connected with a fixed tube 9, the inside of which is slidably connected with a sliding rod 10, the inside of the fixed tube 9 is fixedly connected with a second spring 17, one end of which away from the fixed tube 9 is fixedly connected with the sliding rod 10, so that when the valve plate 5 is flipped, the valve plate 5 is in contact with the sliding rod 10, thereby the sliding rod 10 slides to press the second spring 17, so that the second spring 17 buffers the flipped valve plate 5 and supports the valve plate 5.

[0032] The surface of the sliding rod 10 is fixedly connected with a buffer pad 11, which is in contact with the valve plate 5, so that the sliding rod 10 and the valve plate 5 are in flexible contact through the arrangement of the buffer pad 11, further protecting the device.

[0033] Working principle: when the valve plate 5 needs to be opened and closed, the operator starts the motor 18, so that the output end of the motor 18 drives the rotating shaft 8 to rotate, thereby the rotating shaft 8 drives the connecting rod 7 to rotate, the connecting rod 7 drives the fixed rod 6 to rotate, the fixed rod 6 drives the valve plate 5 to rotate, the valve plate 5 is attached to the fixed ring 4, and at the same time the valve plate 5 drives the convex ring 15 to move and insert into the inside of the fixed ring 4, thereby the convex ring 15 pushes the sliding ring 12, the sliding ring 12 pushes the guide rod 13, the guide rod 13 guides the sliding ring 12, and the sliding ring 12 moves to compress the first spring 14, thereby completing the closing of the valve plate 5, when the motor 18 is started again, the motor 18 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the connecting rod 7 and the fixed rod 6 to move, thereby the fixed rod 6 drives the valve plate 5 to move, and the movement of the valve plate 5 makes the convex ring 15 no longer block the sliding of the sliding ring 12, so that under the action of the elastic force of the first spring 14, the sliding ring 12 slides to be flush with the surface of the fixed ring 4, thereby through the arrangement of the sliding ring 12 and the first spring 14, when the valve plate 5 is not closed, the surface of the sliding ring 12 is flush with the surface of the fixed ring 4 to block the cinder.

[0034] At the same time, when the motor 18 is started, the valve plate 5 is flipped to open, so that the valve plate 5 is flipped to make the surface in contact with the sliding rod 10, thereby the sliding rod 10 slides under force, and the sliding rod 10 under force presses the second spring 17, so that the second spring 17 pushes the sliding rod 10, under the action of the elastic force of the second spring 17, the buffering and support of the valve plate 5 are completed, avoiding the collision of the valve plate 5 with the inner wall of the valve body 1 when it is flipped.

[0035] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A bell valve for a coal injection system, comprising a valve body (1), characterized in that: The surface of the valve body (1) is fixedly connected with a connecting pipe (3), the inside of the valve body (1) is rotatably connected with a rotating shaft (8), the surface of the rotating shaft (8) is fixedly connected with a connecting rod (7), one end of the connecting rod (7) away from the rotating shaft (8) is fixedly connected with a fixed rod (6), the surface of the fixed rod (6) is fixedly connected with a valve plate (5), the inside of the connecting pipe (3) is fixedly connected with a fixed ring (4), the inside of the fixed ring (4) is slidably connected with a sliding ring (12), the surface of the valve plate (5) is fixedly connected with a convex ring (15), the convex ring (15) corresponds to the sliding ring (12).

2. A bell valve for a coal injection system according to claim 1, characterized in that: The inside of the fixed ring (4) is fixedly connected with a first spring (14), one end of the first spring (14) away from the fixed ring (4) is fixedly connected with the sliding ring (12).

3. A bell valve for a coal injection system according to claim 2, characterized in that: The surface of the valve body (1) is fixedly connected with a motor (18), the output end of the motor (18) is rotatably connected with the inside of the valve body (1), and the output end of the motor (18) is fixedly connected with the rotating shaft (8).

4. A bell valve for a coal injection system according to claim 3, characterized in that: The surface of the valve body (1) is fixedly connected with a fixed shell (2), and the motor (18) is located in the inside of the fixed shell (2).

5. A bell valve for a coal injection system according to claim 4, characterized in that: The inside of the fixed ring (4) is slidably connected with a guide rod (13), one end of the guide rod (13) is fixedly connected with the sliding ring (12).

6. A bell valve for a coal injection system according to claim 5, characterized in that: The surface of the convex ring (15) is fixedly connected with a rubber pad (16), and the rubber pad (16) is in contact with the sliding ring (12).

7. A bell valve for a coal injection system according to claim 6, characterized in that: The inside of the valve body (1) is fixedly connected with a fixed pipe (9), the inside of the fixed pipe (9) is slidably connected with a sliding rod (10), the inside of the fixed pipe (9) is fixedly connected with a second spring (17), and one end of the second spring (17) away from the fixed pipe (9) is fixedly connected with the sliding rod (10).

8. A bell valve for a coal injection system according to claim 7, characterized in that: The surface of the sliding rod (10) is fixedly connected with a buffer pad (11), and the buffer pad (11) is in contact with the valve plate (5).

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