Cleaning device suitable for blow-off valve port at top of blast furnace

Abstract

A cleaning device suitable for a blast furnace top blow-off valve port comprises a lifting part, a rotating part, a rotating part and a scraping and sweeping part. The lifting part is arranged on a blast furnace top platform and located on one side of the blow-off valve. The rotating part is arranged on the lifting part; the rotating part is arranged on the rotating part; and the scraping and sweeping part is arranged on the rotating part. The blow-off valve opening cleaning device improves the blow-off valve opening cleaning efficiency and reduces the labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to a valve port cleaning device, in particular to a device capable of assisting workers to clean the relief valve port on the top of a blast furnace, belonging to the technical field of valve port cleaning equipment. Background Art

[0002] The blast furnace is one of the essential equipment in the ironmaking process; during the production process of the blast furnace, the relief valve on its top is an important pressure relief device, and the tightness of the relief valve directly affects the production quality of the blast furnace; when the blast furnace needs to be shut down for maintenance or in case of an emergency, the relief valve is opened; when the relief valve is opened, workers need to manually clean the relief valve port on the top of the furnace to reduce the sundries at the valve port and improve the airtightness; the relief valve adopts a structure combining soft seal and hard seal, and manual cleaning is rather cumbersome; in addition, when in the relief state, there will be residual gas overflowing from the valve port, posing a threat to the personal safety of the workers cleaning the valve port on-site; therefore, a cleaning device is needed, which can efficiently clean the valve port of the relief valve, thereby reducing the labor intensity of the workers and ensuring the personal safety of the workers. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a cleaning device applicable to the relief valve port on the top of a blast furnace, which can not only reduce the labor intensity of the workers but also improve the cleaning efficiency of the relief valve port.

[0004] The problems of the utility model are solved by the following technical solutions:

[0005] A cleaning device applicable to the relief valve port on the top of a blast furnace includes a lifting part, a rotating part, a turning part, and a scraping part; the lifting part is arranged on the blast furnace top platform and is located on one side of the relief valve; the rotating part is arranged on the lifting part; the turning part is arranged on the rotating part; the scraping part is arranged on the turning part; the lifting part includes a base, a lifting seat, a guiding member, and a hydraulic cylinder; the base is arranged on the blast furnace top, and guiding members are arranged at the four corners of its upper end face; the lifting seat is arranged at the top of the guiding member; the hydraulic cylinder is arranged on the base, and the end of its piston rod is connected to the bottom end of the lifting seat; the guiding member includes a guiding rod and a guiding column; the guiding column is arranged on the top end face of the base, and there is a hole at its top end, the guiding rod is inserted into the hole at the top end of the guiding column, and the top end of the guiding rod is connected to the bottom end of the lifting seat.

[0006] The above-mentioned cleaning device suitable for the blast furnace roof venting valve port, the rotating part includes a rotating motor, a rotating plate, a guide ring and a cross plate; a hole is provided at the center of the upper end surface of the lifting seat, and the rotating motor is provided in the hole at the top of the lifting seat, and the end of its output shaft is connected to the center of the lower end surface of the rotating plate; the guide ring is provided at the center of the upper end surface of the lifting seat, a guide groove is provided at the center of the lower end surface of the rotating plate, and the top end of the guide ring is slidably provided in the guide groove at the center of the lower end surface of the rotating plate; the cross plate is provided on the side wall of the rotating plate.

[0007] The above-mentioned cleaning device suitable for the blast furnace roof venting valve port, the rotating part includes a motor, a driving gear, a toothed chain, a turntable and a rotating shaft; a vertical hole is provided at one end of the horizontal plate away from the lifting seat, and the rotating shaft is axially connected in the vertical hole of the horizontal plate; the center of the upper end surface of the turntable is connected to the bottom end of the rotating shaft; a circle of teeth is provided on the circumferential outer wall of the part of the rotating shaft that extends out of the horizontal plate at the top end; the motor is arranged on the upper end surface of the horizontal plate through a bracket, and a driving gear is provided on its output shaft; the driving gear is meshed and transmission-connected with the teeth on the circumferential surface of the rotating shaft by a toothed chain.

[0008] The above-mentioned cleaning device suitable for the blast furnace roof venting valve port, the scraping part includes a top scraping mechanism and a side scraping mechanism; the top scraping mechanism and the side scraping mechanism are both arranged on the bottom end surface of the turntable.

[0009] The above-mentioned cleaning device is suitable for the blast furnace top vent valve port, and the top scraping mechanism includes a fixed ring; the fixed ring is arranged on the bottom end surface of the turntable, and the axis center line of the fixed ring coincides with the axis center line of the turntable; a circle of wire brushes is arranged on the bottom end surface of the fixed ring.

[0010] The above-mentioned cleaning device suitable for the blast furnace roof venting valve port, the side scraping mechanism includes an intermediate block, a guide bar, a spring, a connecting block and a guide triangle block; the intermediate block is arranged on the bottom end surface of the turntable; the intermediate block is provided with a horizontal guide hole, and the guide bar is inserted into the horizontal guide hole of the intermediate block; the connecting block is connected to the guide bar, and a spring is connected between the connecting block and the intermediate block; the end surface of the connecting block away from the axis of the turntable is an arc surface, and a wire brush is arranged on the arc surface; the guide triangle block is arranged on the bottom end surface of the connecting block, and the end surface of the guide triangle block away from the axis of the turntable is an inclined surface.

[0011] The utility model cooperates with the lifting part and the rotating part so that the scraping part can move to the top of the valve port after the release valve port is opened; the lifting part enables the scraping part to touch and press the valve port, and then the rotating part drives the scraping part to rotate, so as to scrape and deal with the debris on the valve port. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure at a low angle of the present utility model;

[0013] Figure 2 This is a schematic diagram of the elevation three-dimensional structure of the utility model.

[0014] The list of each label in the figure is as follows: 1. Base, 2. Lifting seat, 3. Guide, 4. Hydraulic cylinder, 5. Rotating plate, 6. Cross plate, 7. Motor, 8. Tooth chain, 9. Turntable, 10. Rotating shaft, 11. Fixed ring, 12. Intermediate block, 13. Guide bar, 14. Spring, 15. Connecting block, 16. Guide triangular block. Specific embodiments

[0015] Refer to Figure 1 and Figure 2 The utility model includes a lifting part, a rotating position part, a rotating part and a scraping part; the lifting part is arranged on the blast furnace top platform and is located on one side of the relief valve; the rotating position part is arranged on the lifting part; the rotating part is arranged on the rotating position part; the rotating part can drive the scraping part to rotate, so as to scrape and clean the valve port; the scraping part is arranged on the rotating part.

[0016] The lifting part includes a base 1, a lifting seat 2, a guide 3 and a hydraulic cylinder 4; the base 1 is arranged on the blast furnace top, and guides 3 are arranged at the four corners of its upper end face; the guide 3 provides a guiding function for the lifting of the lifting seat 2; the lifting seat 2 is arranged at the top of the guide 3; the hydraulic cylinder 4 is arranged on the base 1, and the end of its piston rod is connected to the bottom end of the lifting seat 2; the hydraulic cylinder 4 drives the lifting seat 2 to lift and lower; the guide 3 includes a guide rod and a guide post; the guide post is arranged on the top end face of the base 1, and a hole is provided at its top end, the guide rod is inserted into the hole at the top end of the guide post, and the top end of the guide rod is connected to the bottom end of the lifting seat 2.

[0017] The rotating position part includes a rotating motor, a rotating plate 5, a guide ring and a cross plate 6; a hole is provided at the center of the upper end face of the lifting seat 2, and the rotating motor is arranged in the hole at the top end of the lifting seat 2, and the end of its output shaft is connected to the center of the lower end face of the rotating plate 5; the rotating motor drives the rotating plate 5 to rotate; the guide ring provides a supporting function for the rotation of the rotating plate 5 to ensure its smooth and reliable rotation; the guide ring is arranged at the center of the upper end face of the lifting seat 2, a guide groove is provided at the center of the lower end face of the rotating plate 5, and the top end of the guide ring is slidably arranged in the guide groove at the center of the lower end face of the rotating plate 5; the cross plate 6 is arranged on the side wall of the rotating plate 5; the orientation of the cross plate 6 is adjusted by the rotation of the rotating plate.

[0018] The rotating part includes a motor 7, a driving gear, a toothed chain 8, a turntable 9 and a rotating shaft 10; a vertical hole is provided at one end of the horizontal plate 6 away from the lifting seat 2, and the rotating shaft 10 is axially connected in the vertical hole of the horizontal plate 6; the center of the upper end surface of the turntable 9 is connected to the bottom end of the rotating shaft 10; the turntable 9 is driven to rotate synchronously by driving the rotating shaft 10 to rotate; a circle of teeth is provided on the outer wall of the circumference of the part of the rotating shaft 10 extending out of the horizontal plate 6 at the top; the motor 7 is arranged on the upper end surface of the horizontal plate 6 through a bracket, and a driving gear is provided on its output shaft; the motor 7 can drive the driving gear to rotate, and the rotating driving gear drives the rotating shaft 10 to rotate through the toothed chain, and finally drives the turntable 9 to rotate; the teeth on the circumferential surface of the driving gear and the rotating shaft 10 are meshed and connected with a toothed chain 8.

[0019] The scraping part includes a top scraping mechanism and a side scraping mechanism; the top scraping mechanism and the side scraping mechanism are both arranged on the bottom end surface of the turntable 9; the top scraping mechanism mainly cleans the top surface of the valve port, and the side scraping mechanism mainly cleans the top of the inner wall of the valve port.

[0020] The top scraping mechanism includes a fixed ring 11; the fixed ring 11 is arranged on the bottom end surface of the turntable 9, and the axis of the fixed ring 11 coincides with the axis of the turntable 9; a circle of wire brushes is arranged on the bottom end surface of the fixed ring 11; the turntable drives the fixed ring 11 to rotate synchronously, and during the rotation process, the wire brush on the fixed ring 11 cleans the top of the valve port.

[0021] The side scraping mechanism includes an intermediate block 12, a guiding strip 13, a spring 14, a connecting block 15 and a guiding triangular block 16; the intermediate block 12 is arranged on the bottom end surface of the turntable 9; the intermediate block 12 is provided with a horizontally oriented guiding hole, and the guiding strip 13 is inserted into the horizontal guiding hole of the intermediate block 12; the connecting block 15 is connected to the guiding strip 13, and a spring 14 is connected between the connecting block 15 and the intermediate block 12; the guiding strip 13 provides a guiding function for the movement of the connecting block 15; the spring provides a force for the connecting block 15 to approach the inner wall of the valve port, ensuring that the wire brush on the arc surface of the connecting block 15 can press against the inner wall of the valve port; the end surface of the connecting block 15 away from the axis line of the turntable 9 is an arc surface, and a wire brush is arranged on the arc surface; since the inner wall of the valve port is circular, the wire brush on the arc surface can better clean the inner wall of the valve port; the guiding triangular block 16 is arranged on the bottom end surface of the connecting block 15, and the end surface of the guiding triangular block 16 away from the axis line of the turntable 9 is an inclined surface; when the connecting block 15 descends, in order to prevent the connecting block 15 from directly hitting the upper edge of the valve port, the guiding triangular block 16 is provided. When the connecting block 15 descends and the guiding triangular block 16 contacts the valve port, since the guiding triangular block 16 is an inclined surface, when the upper edge of the valve port contacts the inclined surface, the guiding triangular block 16 will slide automatically, so that the upper connecting block 15 is far away from the upper edge of the valve port to avoid direct collision, ensuring that the wire brush on the arc surface of the connecting block 15 can smoothly press against the inner wall of the valve port.

[0022] Principle of use: When the discharge valve port is opened, the valve port opens upward; the hydraulic cylinder 4 is started to lift the lifting seat 2, and the rotating motor operates to drive the rotating plate 5 and the cross plate 6 to rotate until the turntable 9 is displaced directly above the valve port; then the hydraulic cylinder 4 drives the turntable 9 to descend. During the descending process, after the upper edge of the valve port touches the guiding triangular block 16, it pushes the guiding triangular block 16 closer to the intermediate block 12 until the wire brush on the connecting block 15 presses against the inner wall of the valve port. The spring provides a force for the connecting block 15 to press against the inner wall of the valve port, and the wire brush on the fixed ring 11 presses against the upper edge of the valve port; then the motor 7 is started to drive the rotating shaft 10 to rotate, finally driving the turntable 9 to rotate. The rotating turntable 9 drives the wire brushes on the fixed ring 11 and the intermediate block 12 to rotate, cleaning the valve port of the discharge valve. After the cleaning is completed, the hydraulic cylinder 4 drives the lifting seat 2 to ascend, the motor 7 is turned off, the rotating motor drives the rotating plate 5 to rotate and return to the initial position, and the turntable 9 moves away from the discharge valve. Thus, the cleaning operation of the discharge valve port is completed.

Claims

1. A cleaning device suitable for a blast furnace top vent valve port, characterized in that: The invention comprises a lifting part, a rotation part, a rotating part and a scraping part; the lifting part is arranged on the blast furnace roof platform and is located on one side of the relief valve; the rotation part is arranged on the lifting part; the rotating part is arranged on the rotation part; the scraping part is arranged on the rotating part; the lifting part comprises a base (1), a lifting seat (2), a guide member (3) and a hydraulic cylinder (4); the base (1) is arranged on the blast furnace roof, and the four corners of the upper end surface of the base (1) are provided with guide members (3); the lifting seat (2) is arranged at the top of the guide member (3); the hydraulic cylinder (4) is arranged on the base (1), and the end of the piston rod thereof is connected to the bottom end of the lifting seat (2); the guide member (3) comprises a guide rod and a guide column; the guide column is arranged on the top end surface of the base (1), and a hole is arranged at the top end thereof, the guide rod is inserted into the hole at the top end of the guide column, and the top end of the guide rod is connected to the bottom end of the lifting seat (2).

2. The cleaning device for the blast furnace top venting valve port according to claim 1 is characterized in that: The rotation part comprises a rotating motor, a rotating plate (5), a guide ring and a transverse plate (6); a hole is provided at the center of the upper end surface of the lifting seat (2), and the rotating motor is arranged in the hole at the top end of the lifting seat (2), and the end of its output shaft is connected to the center of the lower end surface of the rotating plate (5); the guide ring is provided at the center of the upper end surface of the lifting seat (2), a guide groove is provided at the center of the lower end surface of the rotating plate (5), and the top end of the guide ring is slidably provided in the guide groove at the center of the lower end surface of the rotating plate (5); the transverse plate (6) is provided on the side wall of the rotating plate (5).

3. The cleaning device for the blast furnace top venting valve port according to claim 2 is characterized in that: The rotating part comprises a motor (7), a driving gear, a toothed chain (8), a rotating disk (9) and a rotating shaft (10); a vertical hole is arranged at one end of the horizontal plate (6) away from the lifting seat (2), and the rotating shaft (10) is axially arranged in the vertical hole of the horizontal plate (6); the center of the upper end surface of the rotating disk (9) is connected to the bottom end of the rotating shaft (10); a circle of teeth is arranged on the circumferential outer wall of the part of the top end of the rotating shaft (10) extending out of the horizontal plate (6); the motor (7) is arranged on the upper end surface of the horizontal plate (6) through a bracket, and a driving gear is arranged on its output shaft; the driving gear is meshed with the teeth on the circumferential surface of the rotating shaft (10) and is connected by a toothed chain (8).

4. The cleaning device for the blast furnace top venting valve port according to claim 3 is characterized in that: The scraping part comprises a top scraping mechanism and a side scraping mechanism; the top scraping mechanism and the side scraping mechanism are both arranged on the bottom end surface of the rotating disk (9).

5. The cleaning device for the blast furnace top venting valve port according to claim 4 is characterized in that: The top scraping mechanism comprises a fixed circular ring (11); the fixed circular ring (11) is arranged on the bottom end surface of the rotating disk (9), and the axis center line of the fixed circular ring (11) coincides with the axis center line of the rotating disk (9); and a circle of steel wire brushes is arranged on the bottom end surface of the fixed circular ring (11).

6. The cleaning device for the blast furnace top venting valve port according to claim 5 is characterized in that: The side scraping mechanism comprises an intermediate block (12), a guide bar (13), a spring (14), a connecting block (15) and a guiding triangular block (16); the intermediate block (12) is arranged on the bottom end surface of the rotating disk (9); the intermediate block (12) is provided with a horizontal guiding hole, and the guiding bar (13) is inserted into the horizontal guiding hole of the intermediate block (12); the connecting block (15) is connected to the guiding bar (13), and a spring (14) is connected between the connecting block (15) and the intermediate block (12); the end surface of the connecting block (15) away from the axis of the rotating disk (9) is an arc surface, and a wire brush is arranged on the arc surface; the guiding triangular block (16) is arranged on the bottom end surface of the connecting block (15), and the end surface of the guiding triangular block (16) away from the axis of the rotating disk (9) is an inclined surface.

Images