Weighing calibration device suitable for blast furnace injection tank

Abstract

The utility model discloses a weighing calibration device suitable for a blast furnace injection tank. The weighing calibration device comprises a displacement part, a lifting part, a square long column, a counterweight mechanism and a hanging part, the lifting part is arranged on the displacement part, and the square long column is arranged on the lifting part; the multiple balance weight mechanisms are arranged on the square long column at equal intervals in the center line direction of the square long column. Hooks are symmetrically arranged on the two sides of the bottom end of the side wall of the injection tank, and the hooking parts are arranged on the hooks at the bottom end of the injection tank. According to the utility model, the labor intensity of workers is reduced, and the weighing calibration efficiency of the injection tank is improved.

Description

Technical Field

[0001] The utility model relates to a calibration device, in particular to a device capable of calibrating a weighing device of a blast furnace spray tank, and belongs to the technical field of weighing calibration devices of blast furnace spray tanks. Background Art

[0002] The blast furnace injection tank is an important feeding equipment in the blast furnace system, which is used to provide pulverized coal to the blast furnace; the amount of pulverized coal participating in the reaction in the blast furnace needs to be controlled, so the supply of pulverized coal is controlled by the injection tank; the injection tank itself is equipped with a weighing system, and the amount of pulverized coal entering the blast furnace is known by the change in the weight of the injection tank itself; in the normal coal supply process of the injection tank, due to the large number of connecting pipelines of the injection tank, the abnormality of the connecting fulcrum is difficult to find, which will affect the weighing accuracy of the injection tank, and then affect the pulverized coal reaction in the blast furnace, and finally affect the quality of the molten iron product; at present, the weighing system calibration of the injection tank is completed by manually carrying weights, and the staff manually carries tons of weights accumulated to the injection tank for calibration. This process is extremely time-consuming, labor-intensive and inefficient, and the number of blast furnace injection tanks is large, which further increases the labor intensity and total time consumption; therefore, a device that can efficiently weigh and calibrate the blast furnace injection tank is needed to improve the calibration efficiency and reduce the labor intensity of the staff. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a weighing calibration device suitable for a blast furnace spray tank, which can not only reduce the labor intensity of the staff but also improve the weighing calibration efficiency of the spray tank.

[0004] The problem described in the utility model is solved by the following technical solutions:

[0005] A weighing calibration device suitable for a blast furnace spray tank comprises a displacement part, a lifting part, a rectangular long column, a counterweight mechanism and a hanging part; the lifting part is arranged on the displacement part, and the rectangular long column is arranged on the lifting part; the number of the counterweight mechanisms is multiple, and they are arranged on the rectangular long column at equal distances along the center line direction of the rectangular long column; hooks are symmetrically arranged on both sides of the bottom end of the side wall of the spray tank, and the hanging part is arranged on the hooks at the bottom end of the spray tank.

[0006] The above-mentioned weighing calibration device suitable for blast furnace injection tank, the hanging part includes a first hanging mechanism and a second hanging mechanism, the two hanging mechanisms are respectively arranged on different hooks, and the ends are butt-jointed; the first hanging mechanism includes a first hanging ring, a first vertical rod and a first U-shaped frame; the first hanging ring is hung on the hook at the bottom end of the side wall of the injection tank; the top end of the first vertical rod is arranged on the side wall of the first hanging ring, and the bottom end of the first vertical rod is provided with a first U-shaped frame; square sockets are provided at both ends of the first U-shaped frame, and threaded holes are provided at both ends of the side wall of the first U-shaped frame, and the threaded holes are connected to the square sockets of the first U-shaped frame.

[0007] The above-mentioned weighing and calibration device is suitable for blast furnace injection tanks, and the second hanging mechanism includes a second hanging ring, a second vertical rod, a second U-shaped frame and an insertion rod; the second hanging ring is hung on the hook at the bottom end of the side wall of the injection tank; the top end of the second vertical rod is arranged on the side wall of the second hanging ring, and the bottom end of the second vertical rod is arranged with a second U-shaped frame; both ends of the second U-shaped frame are provided with insertion rods, and threaded holes are arranged on the side walls of the insertion rods, and the two insertion rods are inserted into the square holes at both ends of the first U-shaped frame at corresponding positions; the positioning bolts are passed through the threaded holes on the side walls of the first U-shaped frame and the threaded holes on the side walls of the insertion rods; the combination of the first U-shaped frame and the second U-shaped frame is a rectangular frame structure.

[0008] The above-mentioned weighing calibration device suitable for blast furnace injection tanks, the displacement part includes a base and universal wheels; the four corners of the lower end surface of the base are provided with universal wheels.

[0009] The above-mentioned weighing and calibration device suitable for blast furnace injection tanks, the lifting part includes two pairs of lifting mechanisms, and the two pairs of lifting mechanisms are symmetrically arranged on the upper end surface of the base; the lifting mechanism includes an L-shaped limit bar, a cross plate, a lead screw, a lead screw nut and a motor; the number of the L-shaped limit bars is two, and they are oppositely arranged on the upper end surface of the base; the cross plate is arranged between the top ends of the two L-shaped limit bars; the motor is arranged on the upper end surface of the base, the bottom end of the lead screw is connected to the motor output shaft, and the top end of the lead screw is axially connected to the cross plate; the lead screw nut is arranged on the lead screw; the two pairs of lifting mechanisms have a total of four L-shaped limit bars, and they are arranged according to the corner positions of the square; the four right-angled sides of the square long column are respectively in contact with the inner right-angled inner walls of the four L-shaped limit bars; the lead screw nut is connected to the bottom end of the side wall of the square long column.

[0010] The above-mentioned weighing and calibration device is suitable for blast furnace injection tanks, and the counterweight mechanism includes a counterweight plate and a positioning piece; the number of the positioning pieces is two, and they are symmetrically arranged on both sides of the side walls of the rectangular long column; a hole is arranged in the center of the counterweight plate, and the central hole of the counterweight plate is passed through the rectangular long column; the counterweight plate is arranged on two positioning pieces; the size of the counterweight plate is larger than the inner wall size of the first U-shaped frame and the second U-shaped frame combination; the counterweight plate is located directly above the first U-shaped frame and the second U-shaped frame combination.

[0011] The above-mentioned weighing calibration device is suitable for blast furnace injection tanks, and the positioning part includes a cylinder and a plug plate; a square hole is provided on the side wall of the rectangular long column, and the cylinder housing is arranged in the square hole of the rectangular long column; a strip hole is provided on the side wall of the rectangular long column, and the plug plate is inserted in the strip hole of the square long column, and the end of the cylinder piston rod is connected to the plug plate through a bracket; a plug hole is provided on the inner wall of the center hole of the counterweight plate, and the plug plate is inserted in the plug hole on the inner wall of the center hole of the counterweight plate.

[0012] The utility model drives the device to move to the bottom of the spray tank to be calibrated through the displacement part; the counterweight mechanism is driven downward through the cooperation of the lifting part and the rectangular long column, and then the counterweight plate on the counterweight mechanism is removed; the hanging part is arranged on the spray tank, and the counterweight plate on the counterweight mechanism is removed on the hanging part, and the spray tank is calibrated by comparing the weight of the counterweight plate with the weighing data of the spray tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a partial enlarged structural schematic diagram of the utility model A.

[0015] The list of numbers in the figure is: 1. rectangular long column, 2. hook, 3. first hanging ring, 4. first vertical rod, 5. first U-shaped frame, 6. second hanging mechanism, 7. base, 8. L-shaped limit strip, 9. horizontal plate, 10. screw nut, 11. motor, 12. counterweight plate, 13. cylinder, 14. plug plate. DETAILED DESCRIPTION

[0016] See also Figure 1 and Figure 2 The utility model includes a displacement part, a lifting part, a rectangular long column 1, a counterweight mechanism and a hanging part; the lifting part is arranged on the displacement part, and the rectangular long column 1 is arranged on the lifting part; the lifting part is used to drive the rectangular long column 1 to rise and fall vertically, so as to facilitate lifting the counterweight mechanism to a suitable height; the number of the counterweight mechanisms is multiple, and they are equidistantly arranged on the rectangular long column 1 along the center line direction of the rectangular long column 1; the counterweight plate on the counterweight mechanism can act on the spray tank, and then calibrate with the comparison of the weighing data of the spray tank itself; hooks 2 are symmetrically arranged on both sides of the bottom end of the side wall of the spray tank, and the hanging part is arranged on the hooks 2 at the bottom end of the spray tank.

[0017] The hanging part includes a first hanging mechanism and a second hanging mechanism 6, and the two hanging mechanisms are respectively arranged on different hooks 2, and the ends are butt-jointed; the first hanging mechanism includes a first hanging ring 3, a first hanging rod 4 and a first U-shaped frame 5; the first hanging ring 3 is hung on the hook 2 at the bottom end of the side wall of the spray tank; the top end of the first hanging rod 4 is arranged on the side wall of the first hanging ring 3, and the bottom end of the first hanging rod 4 is provided with a first U-shaped frame 5; square sockets are provided at both ends of the first U-shaped frame 5, and threaded holes are provided at both ends of the side wall of the first U-shaped frame 5, and the threaded holes are connected to the square sockets of the first U-shaped frame 5.

[0018] The second hanging mechanism 6 includes a second hanging ring, a second vertical rod, a second U-shaped frame and an insertion rod; the second hanging ring is hung on the hook 2 at the bottom end of the side wall of the spray tank; the top end of the second vertical rod is arranged on the side wall of the second hanging ring, and the bottom end of the second vertical rod is arranged with a second U-shaped frame; both ends of the second U-shaped frame are provided with insertion rods, threaded holes are arranged on the side walls of the insertion rods, and the two insertion rods are inserted into the square insertion holes at both ends of the first U-shaped frame 5 at corresponding positions; the positioning bolts are passed through the threaded holes on the side walls of the first U-shaped frame 5 and the threaded holes on the side walls of the insertion rods; the first U-shaped frame 5 and the second U-shaped frame combination are rectangular frame structures; after tightening the positioning bolts, the first U-shaped frame 5 and the second U-shaped frame are relatively fixed as a whole.

[0019] The displacement part includes a base 7 and universal wheels; the four corners of the lower end surface of the base 7 are provided with universal wheels.

[0020] The lifting part includes two pairs of lifting mechanisms, and the two pairs of lifting mechanisms are symmetrically arranged on the upper end surface of the base 7; the lifting mechanism includes an L-shaped limit strip 8, a cross plate 9, a lead screw, a lead screw nut 10 and a motor 11; the number of the L-shaped limit strips 8 is two, and they are oppositely arranged on the upper end surface of the base 7; the cross plate 9 is arranged between the top ends of the two L-shaped limit strips 8; the motor 11 is arranged on the upper end surface of the base 7, the bottom end of the lead screw is connected to the output shaft of the motor 11, and the top end of the lead screw is axially connected to the cross plate 9; the lead screw nut 10 is arranged on the lead screw; the motor 11 It can drive the screw to rotate, and then drive the screw nut to move along the axial direction of the screw; the two pairs of lifting mechanisms have a total of four L-shaped limit strips 8, and they are arranged according to the corner positions of the square; the four right-angled sides of the square long column 1 are respectively in contact with the inner right-angled inner walls of the four L-shaped limit strips 8; the square long column 1 is limited and guided by the four L-shaped limit strips 8 to ensure that it can only move along the length direction of the L-shaped limit strip 8; the screw nut 10 is connected to the bottom end of the side wall of the square long column 1; the square long column 1 is driven to rise and fall synchronously through the screw nut.

[0021] The counterweight mechanism includes a counterweight plate 12 and a positioning piece; there are two positioning pieces, which are symmetrically arranged on both sides of the side wall of the rectangular long column 1; a hole is arranged in the center of the counterweight plate 12, and the central hole of the counterweight plate 12 is passed through the rectangular long column 1; the counterweight plate 12 is arranged on two positioning pieces; the positioning piece is used to support and release the counterweight plate 12, which can drive the counterweight plate 12 to move, and can also release the counterweight plate 12 to fall and release it to the first U-shaped frame 5 and the second U-shaped frame combination to transfer the weight to the spray tank; the size of the counterweight plate 12 is larger than the inner wall size of the first U-shaped frame 5 and the second U-shaped frame combination, so as to ensure that the counterweight plate 12 can fall reliably on the first U-shaped frame 5 and the second U-shaped frame combination; the counterweight plate 12 is located directly above the first U-shaped frame 5 and the second U-shaped frame combination.

[0022] The positioning member includes a cylinder 13 and an insert plate 14; a square hole is provided on the side wall of the rectangular column 1, and the cylinder 13 shell is arranged in the square hole of the rectangular column 1; a strip hole is provided on the side wall of the rectangular column 1, and the insert plate 14 is inserted in the strip hole of the rectangular column 1, and the end of the piston rod of the cylinder 13 is connected to the insert plate 14 through a bracket; a plug hole is provided on the inner wall of the center hole of the counterweight plate 12, and the insert plate 14 is inserted in the plug hole on the inner wall of the center hole of the counterweight plate 12; the cylinder 13 can drive the insert plate 14 to slide, so that the insert plate 14 can be inserted into the plug hole on the inner wall of the counterweight plate 12, and the counterweight plate 12 can be displaced synchronously with the rectangular column 1 through the insert plate 14.

[0023] Actual use process: push the device to the bottom of the spray tank to be calibrated; start the motor 11, lift the rectangular column 1 so that its top is close to the bottom of the spray tank; then hang the hanging rings on the first hanging mechanism and the second hanging mechanism on the corresponding hooks 2 under the spray tank respectively; then dock the ends of the first U-shaped frame and the second U-shaped frame, and tighten the positioning bolts; at this time, the rectangular column 1 passes through the inner annulus of the first U-shaped frame and the second U-shaped frame combination, and the counterweight mechanism is located directly above the first U-shaped frame and the second U-shaped frame combination; start weighing calibration, the motor 11 drives the rectangular column 1 to slowly descend until the counterweight plate 12 at the lowest end is close to the first U-shaped frame and the second U-shaped frame combination, and then the cylinder 13 corresponding to the counterweight plate 12 at the lowest end moves to retract the plug plate 14, at this time the counterweight plate 12 falls on the first U-shaped frame and the second U-shaped frame combination, and the counterweight The weight of the plate 12 is transferred to the spray tank, and all the counterweight plates 12 are placed on the first U-shaped frame and the second U-shaped frame assembly repeatedly. In this process, the weight of the counterweight plates 12 can be known according to the number of counterweight plates 12 placed, and the weighing system of the spray tank is corrected by comparing the weighing data of the spray tank; after the correction is completed, the counterweight plates 12 are recovered, the motor 11 reverses to drive the rectangular long column 1 upward, and after the top plug plate 14 is aligned with the socket of the top counterweight plate 12, the cylinder 13 is actuated to insert the plug plate 14 into the socket of the corresponding counterweight plate 12, and this is repeated until all the plug plates 14 are inserted into the socket of the corresponding counterweight plate 12. At this time, the counterweight plates 12 are completely recovered, and then the positioning bolts are screwed out, and the two hanging mechanisms are removed, and then the motor 11 is started to drive the rectangular long column 1 to fall and reset, and the device is removed to wait for the correction of the next spray tank.

Claims

1. A weighing calibration device suitable for a blast furnace spray tank, characterized in that: The invention comprises a displacement part, a lifting part, a rectangular long column (1), a counterweight mechanism and a hanging part; the lifting part is arranged on the displacement part, and the rectangular long column (1) is arranged on the lifting part; the counterweight mechanism is in multiple numbers, and is arranged on the rectangular long column (1) at equal distances along the center line direction of the rectangular long column (1); hooks (2) are symmetrically arranged on both sides of the bottom end of the side wall of the spray tank, and the hanging part is arranged on the hooks (2) at the bottom end of the spray tank.

2. The weighing calibration device suitable for blast furnace spray tank according to claim 1 is characterized in that: The hanging part comprises a first hanging mechanism and a second hanging mechanism (6), the two hanging mechanisms are respectively arranged on different hooks (2), and the ends thereof are butted; the first hanging mechanism comprises a first hanging ring (3), a first hanging rod (4) and a first U-shaped frame (5); the first hanging ring (3) is hung on the hook (2) at the bottom end of the side wall of the spray tank; the top end of the first hanging rod (4) is arranged on the side wall of the first hanging ring (3), and the bottom end of the first hanging rod (4) is provided with the first U-shaped frame (5); square plug holes are arranged at both ends of the first U-shaped frame (5), and threaded holes are arranged at both ends of the side wall of the first U-shaped frame (5), and the threaded holes are connected to the square plug holes of the first U-shaped frame (5).

3. The weighing calibration device suitable for blast furnace spray tank according to claim 2 is characterized in that: The second hanging mechanism (6) comprises a second hanging ring, a second hanging rod, a second U-shaped frame and an insertion rod; the second hanging ring is hung on the hook (2) at the bottom end of the side wall of the spray tank; the top end of the second hanging rod is arranged on the side wall of the second hanging ring, and the bottom end of the second hanging rod is arranged with a second U-shaped frame; both ends of the second U-shaped frame are provided with an insertion rod, and the side wall of the insertion rod is provided with a threaded hole, and the two insertion rods are inserted into the square insertion holes at both ends of the first U-shaped frame (5) at corresponding positions; the positioning bolts are passed through the threaded holes on the side wall of the first U-shaped frame (5) and the threaded holes on the side wall of the insertion rod; the first U-shaped frame (5) and the second U-shaped frame assembly are a rectangular frame structure.

4. The weighing calibration device suitable for blast furnace spray tank according to claim 3 is characterized in that: The displacement part comprises a base (7) and universal wheels; the four corners of the lower end surface of the base (7) are each provided with universal wheels.

5. The weighing calibration device suitable for blast furnace spray tank according to claim 4 is characterized in that: The lifting part comprises two pairs of lifting mechanisms, and the two pairs of lifting mechanisms are symmetrically arranged on the upper end surface of the base (7); the lifting mechanism comprises an L-shaped limit strip (8), a cross plate (9), a lead screw, a lead screw nut (10) and a motor (11); the number of the L-shaped limit strips (8) is two, and they are arranged oppositely on the upper end surface of the base (7); the cross plate (9) is arranged between the top ends of the two L-shaped limit strips (8); the motor (11) is arranged on the upper end surface of the base (7), the bottom end of the lead screw is connected to the output shaft of the motor (11), and the top end of the lead screw is axially connected to the cross plate (9); the lead screw nut (10) is arranged on the lead screw; the two pairs of lifting mechanisms have a total of four L-shaped limit strips (8), and they are arranged according to the corner positions of the square; the four right-angled sides of the square long column (1) are respectively in contact with the inner right-angled inner walls of the four L-shaped limit strips (8); and the lead screw nut (10) is connected to the bottom end of the side wall of the square long column (1).

6. The weighing calibration device for blast furnace spray tank according to claim 5, characterized in that: The counterweight mechanism comprises a counterweight plate (12) and positioning members; the number of the positioning members is two and they are symmetrically arranged on both sides of the side wall of the rectangular long column (1); a hole is arranged at the center of the counterweight plate (12), and the center hole of the counterweight plate (12) is penetrated by the rectangular long column (1); the counterweight plate (12) is arranged on the two positioning members; the size of the counterweight plate (12) is larger than the size of the inner wall of the first U-shaped frame (5) and the second U-shaped frame combination; the counterweight plate (12) is located directly above the first U-shaped frame (5) and the second U-shaped frame combination.

7. The weighing calibration device for blast furnace spray tank according to claim 6, characterized in that: The positioning member comprises a cylinder (13) and an insert plate (14); a square hole is provided on the side wall of the rectangular long column (1), and a housing of the cylinder (13) is arranged in the square hole of the rectangular long column (1); a strip hole is provided on the side wall of the rectangular long column (1), and the insert plate (14) is inserted in the strip hole of the rectangular long column (1), and the end of the piston rod of the cylinder (13) is connected to the insert plate (14) via a bracket; an insert hole is provided on the inner wall of the center hole of the counterweight plate (12), and the insert plate (14) is inserted in the insert hole on the inner wall of the center hole of the counterweight plate (12).

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