Feeding device for blast furnace bin

Abstract

The invention relates to the field of stock bin feeding, in particular to a blast furnace stock bin feeding device which comprises a foundation plate and a stepped three-way hopper fixedly installed on the surface of the outer side of the top of the foundation plate, and a P201 belt conveyor is fixedly installed on the surface of the top of the stepped three-way hopper. Openings are symmetrically formed in the surfaces of the two sides of the stepped three-way hopper, and limiting blocks are fixedly connected to the surfaces of the two sides of the stepped three-way hopper and located at the edge positions of the openings. Sintered ore is conveyed in cooperation with an S102 belt conveyor, sintered ore in the S102 belt conveyor is conveyed to a west bin in cooperation with a stepped three-way hopper, and when sintered ore needs to be conveyed to an east bin, a limiting ferrule is pushed in cooperation with a hydraulic rod, so that a double-strand limiting rod on the inner side wall face of the limiting ferrule slides on the surface of an opening; and when the double-strand limiting rods slide, the first swing plate is driven to move between the double-strand limiting rods, and under pushing of the double-strand limiting rods, the first swing plate is driven to move.

Description

Technical Field

[0001] The invention relates to the technical field of silo feeding, in particular to a blast furnace silo feeding device. Background Art

[0002] The blast furnace silo feeding device is an important component of the blast furnace ironmaking system. It is responsible for transporting raw materials (such as ore, coke, etc.) from the silo to the blast furnace. This process is crucial to the stable operation and production efficiency of the blast furnace.

[0003] A patent with announcement number CN 111172340 B discloses a blast furnace silo preparation device, which belongs to the technical field of ironmaking equipment, and includes a blast furnace silo, a feeder and a vibrating screen. A silo is provided at the bottom of the blast furnace charge, and a stirring assembly is provided inside the silo at the silo; the feeder is arranged below the blast furnace silo and is connected with the interior of the blast furnace silo; the side wall of the feeder is provided with strip holes extending in the up and down directions, and the side wall of the feeder is also provided with a sealing assembly for sealing the strip holes; the vibrating screen is arranged below the feeder; one end of the transmission rod is connected to the vibrating screen, and the other end passes through the strip hole and is connected to the stirring assembly. The blast furnace silo preparation device provided by the present invention can automatically dredge the accumulated materials under the drive of the vibrating screen, thereby saving labor costs, and the system does not stop during the dredging process, thereby saving time and improving production efficiency.

[0004] The process of transporting sintered ore from the workshop to the 5800 blast furnace bunker is as follows: the sintering machine bunker is opened, and after passing through several belt conveyors, it reaches the S102 belt conveyor, and then the S101 belt conveyor rotates forward and reversely to transport the sintered ore to the bunkers on the east and west sides of the blast furnace; when the east bunker of the 5800 blast furnace needs sintered ore, the S101 belt conveyor is transported to the P101 belt conveyor when rotating forward for charging; when the west bunker needs sintered ore, the sintering machine bunker needs to be closed first, leaving an empty section of the belt, and then the sintering machine bunker switching process is opened, so that the S101 belt conveyor is turned on and reversed, and the sintered ore is transported to the P201 belt conveyor for charging. The belts in the process of opening and closing the sintering ore bunker are all running at a small flow rate, which takes about 25 minutes, and the feeding efficiency can only reach 45% of the usual time. The process needs to be switched about 6 times per shift, so there are 450 minutes of feeding at 45% efficiency every day. The feeding efficiency is low, the belt conveyor operation time increases, and the power consumption is greatly increased. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that when the existing blast furnace silo is feeding the east and west silos, the sintering machine silo needs to be closed first, leaving an empty section of the belt, and then the sintering machine silo switching process is opened, so that the S101 belt conveyor is turned on and reversed, and the sintered ore is transported to the P201 belt conveyor for feeding. The sintered ore silo is opened, and the feeding efficiency can only reach 45% of the usual efficiency. The process needs to be switched about 6 times per shift, so there are 450 minutes a day for feeding at an efficiency of 45%, the feeding efficiency is low, the belt conveyor operation time is increased, and the power consumption is greatly increased.

[0006] In order to solve the above technical problems, the present invention provides a blast furnace silo feeding device, comprising a base plate and a stepped three-way hopper fixedly installed on the outer surface of the top of the base plate, a P201 belt conveyor is fixedly installed on the top surface of the stepped three-way hopper, and openings are symmetrically opened on both side surfaces of the stepped three-way hopper, and limiting blocks are fixedly connected to the two side surfaces of the stepped three-way hopper and located at the edge position of the opening, a hydraulic rod is fixedly connected to the inner wall surface of the limiting block, and a limiting ring extending into the opening is arranged on the output end of the hydraulic rod, the inner wall surface of the stepped three-way hopper is fixedly connected to a limiting arc cylinder at the bottom edge position, a swing plate 1 is movably sleeved on the inner wall surface of the limiting arc cylinder, and a double-strand limiting rods arranged on the two side surfaces of the swing plate 1 are movably sleeved on the inner wall surface of the limiting ring.

[0007] In one embodiment of the present invention, flow guide pipes are fixedly connected to the bottom surface of the stepped three-way hopper and at the edge positions on both sides, and a fixing plate is fixedly connected to the inner wall surface of the flow guide pipe.

[0008] In one embodiment of the present invention, a second swing plate is swingably connected to the outer surface of the fixed plate, and an upward limit strip movably overlapped on one side surface of the second swing plate is fixedly connected to the inner wall surface of the other side of the guide tube.

[0009] In one embodiment of the present invention, a second motor is fixedly installed on the inner wall of the guide tube and located at the bottom edge of the fixed plate and the swing plate 2, and an extrusion push disk movably overlapped on the bottom surface of the swing plate 2 is fixedly connected to the output end of the second motor.

[0010] In one embodiment of the present invention, the top surface of the swing plate 2 and the inner wall surface of the guide tube are filled with sintered ore, and the other side surface of the guide tube is arranged on the top surface of the S101 belt conveyor.

[0011] In one embodiment of the present invention, a support frame is fixedly installed on the top surface of the base plate and on the P101 belt conveyor located on one side edge of the bottom of the stepped three-way hopper.

[0012] In one embodiment of the present invention, the top surface of the support frame is arranged at the bottom surface edge position of the S102 belt conveyor, and the position of the P201 belt conveyor is arranged at the bottom edge position of the support frame.

[0013] In one embodiment of the present invention, a guide plate is provided on the top side edge of the S102 belt conveyor, and a motor 1 is detachably mounted on the outer surface of the S102 belt conveyor.

[0014] In one embodiment of the present invention, the output end of the motor 1 extends to the inner wall of the S102 belt conveyor, a conveyor belt is movably sleeved on the output end of the S102 belt conveyor, and a roller rod is provided on the outer surface of the S102 belt conveyor and at the bottom edge of the guide plate.

[0015] In one embodiment of the present invention, a transmission crawler arranged on the outer surface of the roller rod is movably sleeved on the outer surface of the output end of the S102 belt conveyor and located on the outer surface of the S102 belt conveyor.

[0016] The above technical solution of the present invention has the following advantages compared with the prior art:

[0017] The blast furnace bunker feeding device described in the present invention cooperates with the S102 belt conveyor to transport the sintered ore, and cooperates with the stepped three-way hopper to transport the sintered ore inside the S102 belt conveyor to the west bin. When the sintered ore needs to be transported to the east bin, the hydraulic rod is used to push the limit ring, so that the double-strand limit rods on the inner wall of the limit ring slide on the surface of the opening, and the double-strand limit rods will drive the swing plate to move between the double-strand limit rods while sliding. Under the push of the limit rod, one end of the swing plate 1 will swing to the left edge position on the inner wall of the limit arc cylinder, thereby driving the swing plate 1 to rotate on the inner wall of the limit arc cylinder. When the edge position of the swing plate 1 fits with the left inner wall of the stepped three-way hopper, the material falling from the stepped three-way hopper is guided from the right channel into the left channel. The swing of the swing plate 1 is used to change the angle and direction of the material falling, without the need to open and close the mechanical energy of the sintering machine silo.

[0018] The blast furnace bunker feeding device described in the present invention, when the east warehouse is conveying materials again, cooperates with the second motor to rotate the extrusion push disk, and uses the extrusion push disk raised on the surface of the second motor output end to push and lift the swing plate two, so that one end of the swing plate two is overlapped on the inner wall surface of the guide tube, and cooperates with the upward limit strip on the inner wall surface of the guide tube to control the lifting angle of the swing plate two to block the falling materials. At the same time, after the materials are gradually accumulated inside the guide tube, cooperate with the swing plate one to isolate the space for the top materials to fall. At this time, the second motor is used to rotate the extrusion push disk, so that the swing plate two moves a gap from the surface of the upward limit strip, so that the materials inside the guide tube gradually and evenly fall, and the belt conveyor can still effectively and quickly transport the falling materials without slowing down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a sectional stereogram of a local device of the stepped three-way hopper in the present invention;

[0022] Figure 3 It is a front cutaway stereoscopic view of the stepped three-way hopper in the present invention;

[0023] Figure 4 It is a cutaway stereogram of the stepped three-way hopper in the present invention;

[0024] Figure 5 is a sectional stereoscopic view of the flow guide tube in the present invention;

[0025] Figure 6 It is a three-dimensional diagram of the extrusion push disk in the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the double-stranded limiting rod in the present invention;

[0027] Figure 8 It is a cutaway perspective view of the S102 belt conveyor in the present invention;

[0028] Fig. 9 It is a sectional three-dimensional view of the swing of the limit arc cylinder in the present invention.

[0029] Explanation of the reference numerals in the drawings in the specification: 11. base plate; 12. S102 belt conveyor; 121. guide plate; 122. Motor 1; 123. Conveyor crawler; 124. Drive crawler; 13. Stepped three-way hopper; a1. Limit arc cylinder; a2. Swing plate 1; a3. Opening; a4. Limit block; a5. Hydraulic rod; a6. Limit ring; a7. Double-strand limit rod; 131. Guide pipe; 132. Fixed plate; 133. Swing plate 2; 134. Upper limit strip; 135. Motor 2; 136. Extrusion push plate; 137. Sintered ore; 14. P101 belt conveyor; 15. S101 belt conveyor; 16. P201 belt conveyor; 17. Support frame. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] See also Figure 1 - Figure 4 , Figure 7 and Fig. 9 The present invention provides a blast furnace bunker feeding device, comprising a base plate 11 and a stepped three-way hopper 13 fixedly mounted on the outer surface of the top of the base plate 11, a P201 belt conveyor 16 fixedly mounted on the top surface of the stepped three-way hopper 13, openings a3 are symmetrically provided on both side surfaces of the stepped three-way hopper 13, limiting blocks a4 are fixedly connected to both side surfaces of the stepped three-way hopper 13 and located at convenient positions of the openings a3, a hydraulic rod a5 is fixedly connected to the inner side wall of the limiting block a4, a limiting collar a6 extending into the opening a3 is provided on the output end of the hydraulic rod a5, a limiting arc cylinder a1 is fixedly connected to the inner side wall of the stepped three-way hopper 13 and located at the bottom edge position, a swing plate a2 is movably sleeved on the inner side wall of the limiting arc cylinder a1, and double-strand limiting rods a7 arranged on the two side surfaces of the swing plate a2 are movably sleeved on the inner side wall of the limiting collar a6;

[0032] Cooperate with the S102 belt conveyor 12 to transport the sintered ore, cooperate with the stepped three-way hopper 13 to transport the sintered ore inside the S102 belt conveyor 12 to the west warehouse. When it is necessary to transport the sintered ore to the east warehouse, cooperate with the hydraulic rod a5 to push the limit ring a6, so that the double limit rods a7 on the inner wall of the limit ring a6 slide on the surface of the opening a3, and the double limit rods a7 will drive the swing plate a2 to move between the double limit rods a7 while sliding. Under the push of the double limit rods a7, one end of the swing plate a2 will swing to the left edge position on the inner wall of the limit arc cylinder a1, thereby driving the swing plate a2 to rotate on the inner wall of the limit arc cylinder a1. When the edge position of the swing plate a2 is aligned with the inner wall of the limit arc cylinder a1, the swing plate a2 will rotate. The left inner wall surface of the stepped three-way hopper 13 is in contact with each other, so that the material dropped from the stepped three-way hopper 13 is guided from the right channel into the left channel, and the swing plate a2 is swung to change the angle and direction of the material falling, without the need to open and close the mechanical energy of the sintering machine silo for processing; this avoids the need to close the sintering machine silo first, leave an empty section of the belt, and then open the sintering machine silo to switch the process when the west warehouse needs sintered ore, so that the S101 belt conveyor is turned on and reversed, and the sintered ore is transported to the P201 belt conveyor for beating, and the sintered ore silo is opened. When the material passes through the guide pipe 131 and enters the S101 belt conveyor 15, it enters the P201 belt conveyor 16 under the push of the conveyor belt, and the material is poured into the east warehouse for incineration through the P201 belt conveyor 16.

[0033] Furthermore, if Figure 1 and Figure 8As shown, the bottom surface of the stepped three-way hopper 13 and the edges of both sides are fixedly connected with a guide tube 131, the inner wall surface of the guide tube 131 is fixedly connected with a fixed plate 132, the outer surface of the fixed plate 132 is swingably connected with a swing plate 133, and the inner wall surface of the other side of the guide tube 131 is fixedly connected with an upward limit strip 134 movably overlapped on the surface of one side of the swing plate 133, and the inner wall surface of the guide tube 131 and the fixed plate 132 and the swing plate 133 are respectively fixedly connected. A motor 135 is fixedly installed at the bottom edge of the second plate 133, and an extrusion push disk 136 movably overlapped on the bottom surface of the second swing plate 133 is fixedly connected to the output end of the second motor 135. The top surface of the second swing plate 133 and the inner wall surface of the guide tube 131 are filled with sintered ore 137. The other side surface of the guide tube 131 is set on the top surface of the S101 belt conveyor 15, the top surface of the base plate 11 and located on the bottom side of the stepped three-way hopper 13 The P101 belt conveyor 14 is at the edge position, a support frame 17 is fixedly installed on the top surface of the ground plate 11 and at the edge position of one side, the top surface of the support frame 17 is set at the edge position of the bottom surface of the S102 belt conveyor 12, the position of the P201 belt conveyor 16 is set at the bottom edge position of the support frame 17, a guide plate 121 is set at the edge position of the top side of the S102 belt conveyor 12, a motor 122 is detachably installed on the outer surface of the S102 belt conveyor 12, the output end of the motor 122 extends to the inner wall surface of the S102 belt conveyor 12, a conveying crawler 123 is movably sleeved on the output end of the S102 belt conveyor 12, a roller rod is set on the outer surface of the S102 belt conveyor 12 and at the bottom edge position of the guide plate 121, and a transmission crawler 124 set on the outer surface of the roller rod is movably sleeved on the outer surface of the output end of the S102 belt conveyor 12 and located on the outer surface of the S102 belt conveyor 12.

[0034] When the east warehouse is conveying materials again, the motor 2 135 is cooperated to rotate the extrusion push disk 136, and the extrusion push disk 136 protruding on the output end surface of the motor 2 135 is used to push and lift the swing plate 2 133, so that one end of the swing plate 2 133 is overlapped on the inner wall of the guide tube 131, and the upward limit strip 134 on the inner wall of the guide tube 131 is cooperated to control the lifting angle of the swing plate 2 133 to block the falling materials. At the same time, after the materials are gradually accumulated inside the guide tube 131, the swing plate 1 a2 is cooperated to isolate the space for the top materials to fall. At this time, the motor 2 135 is used to rotate the extrusion push disk 136, so that the swing plate 2 133 is moved from the upward limit strip 134 to the upper limit strip 134. A gap is moved on the surface of S102 belt conveyor 134, so that the material inside the guide pipe 131 falls gradually and evenly, and the belt conveyor can effectively and quickly transport the falling material without slowing down; it avoids the need to close the warehouse when changing warehouses, and the belt needs to operate at a small flow rate after closing the warehouse, which reduces the feeding efficiency, increases the operation time of the belt conveyor, and greatly increases the power consumption; cooperate with the guide plate 121 on the inner wall of the S102 belt conveyor 12 to transport and guide the material inside the sintering machine silo, and cooperate with the motor 122 to rotate the drive crawler 124, so that the conveyor crawler 123 on the outer surface of the motor 122 moves on the inner wall of the S102 belt conveyor 12, and moves the material into the stepped three-way hopper 13.

[0035] Working principle: cooperate with S102 belt conveyor 12 to transport sintered ore, cooperate with stepped three-way hopper 13 to transport sintered ore inside S102 belt conveyor 12 to the west warehouse. When sintered ore needs to be transported to the east warehouse, cooperate with hydraulic rod a5 to push limit ring a6, so that the double limit rod a7 on the inner wall of limit ring a6 slides on the surface of opening a3, and the double limit rod a7 will drive swing plate a2 to move between the double limit rod a7 while sliding. Under the push of double limit rod a7, one end of swing plate a2 will move to the left edge position on the inner wall of limit arc cylinder a1. The swing plate a2 is swung, thereby driving the swing plate a2 to rotate on the inner wall of the limit arc cylinder a1. When the edge of the swing plate a2 is in contact with the inner wall of the left side of the stepped three-way hopper 13, the material falling from the stepped three-way hopper 13 is diverted from the right channel into the left channel. The swing plate a2 is swung to change the angle and direction of the material falling, and there is no need to open and close the mechanical energy of the sintering machine silo. When the material passes through the guide pipe 131 and enters the S101 belt conveyor 15, it enters the P201 belt conveyor 16 under the push of the conveyor belt, and the material is poured into the east warehouse for incineration through the P201 belt conveyor 16. When the east warehouse is conveying materials again, the motor 2 135 is cooperated to rotate the extrusion push disk 136, and the extrusion push disk 136 protruding on the output end surface of the motor 2 135 is used to push and lift the swing plate 2 133, so that one end of the swing plate 2 133 is overlapped on the inner wall surface of the guide tube 131, and the upward limit strip 134 on the inner wall surface of the guide tube 131 is cooperated to control the lifting angle of the swing plate 2 133 to block the falling materials. At the same time, after the materials are gradually accumulated inside the guide tube 131, the swing plate 1 a2 is cooperated to isolate the space for the top materials to fall. At this time, the motor 2 135 is used to squeeze the extrusion push disk 136 The pressure push plate 136 rotates, so that the swing plate 133 moves a gap from the surface of the upper limit strip 134, so that the material inside the guide pipe 131 falls gradually and evenly, and the belt conveyor can effectively and quickly transport the falling material without slowing down; the guide plate 121 on the inner wall of the S102 belt conveyor 12 is used to transport and guide the material inside the sintering machine silo, and the motor 122 is used to rotate the transmission crawler 124, so that the conveyor crawler 123 on the outer surface of the motor 122 moves on the inner wall of the S102 belt conveyor 12, and the material is moved into the stepped three-way hopper 13.

[0036] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A blast furnace silo feeding device, comprising a base plate (11) and a stepped three-way hopper (13) fixedly mounted on the top outer surface of the base plate (11), a P201 belt conveyor (16) fixedly mounted on the top surface of the stepped three-way hopper (13), characterized in that: The two side surfaces of the stepped three-way hopper (13) are symmetrically provided with openings (a3); the two side surfaces of the stepped three-way hopper (13) are fixedly connected to limit blocks (a4) at convenient positions of the openings (a3); the inner wall surface of the limit block (a4) is fixedly connected to a hydraulic rod (a5); the output end of the hydraulic rod (a5) is provided with a limit ring (a6) extending into the opening (a3); the inner wall surface of the stepped three-way hopper (13) is fixedly connected to a limit arc cylinder (a1) at the bottom edge position; the inner wall surface of the limit arc cylinder (a1) is movably sleeved with a swing plate (a2); the inner wall surface of the limit ring (a6) is movably sleeved with double limit rods (a7) arranged on the two side surfaces of the swing plate (a2).

2. A blast furnace bunker feeding device according to claim 1, characterized in that: A flow guide tube (131) is fixedly connected to the bottom surface of the stepped three-way hopper (13) and at the edge positions on both sides thereof, and a fixing plate (132) is fixedly connected to the inner wall surface of the flow guide tube (131).

3. A blast furnace bunker feeding device according to claim 2, characterized in that: A second swing plate (133) is swingably connected to the outer surface of the fixed plate (132), and an upward limit strip (134) movably overlapped on one side surface of the second swing plate (133) is fixedly connected to the inner wall surface on the other side of the guide tube (131).

4. A blast furnace bunker feeding device according to claim 3, characterized in that: A second motor (135) is fixedly mounted on the inner wall of the guide tube (131) and at the bottom edge of the fixed plate (132) and the second swing plate (133); an extrusion push disk (136) movably overlapped on the bottom surface of the second swing plate (133) is fixedly connected to the output end of the second motor (135).

5. A blast furnace bunker feeding device according to claim 4, characterized in that: The top surface of the second swing plate (133) and the inner wall surface of the guide pipe (131) are filled with sintered ore (137), and the other side surface of the guide pipe (131) is arranged on the top surface of the S101 belt conveyor (15).

6. A blast furnace bunker feeding device according to claim 1, characterized in that: A P101 belt conveyor (14) is located on the top surface of the base plate (11) and at the edge of one side of the bottom of the stepped three-way hopper (13); a support frame (17) is fixedly installed on the top surface of the base plate (11) and at the edge of one side.

7. A blast furnace bunker feeding device according to claim 6, characterized in that: The top surface of the support frame (17) is arranged at the edge of the bottom surface of the S102 belt conveyor (12), and the position of the P201 belt conveyor (16) is arranged at the bottom edge of the support frame (17).

8. A blast furnace bunker feeding device according to claim 1, characterized in that: A guide plate (121) is provided on the top side edge of the S102 belt conveyor (12), and a motor 1 (122) is detachably mounted on the outer surface of the S102 belt conveyor (12).

9. A blast furnace bunker feeding device according to claim 8, characterized in that: The output end of the motor 1 (122) extends to the inner wall surface of the S102 belt conveyor (12), and a conveying crawler belt (123) is movably sleeved on the output end of the S102 belt conveyor (12). A roller rod is provided on the outer surface of the S102 belt conveyor (12) and at the bottom edge of the guide plate (121).

10. A blast furnace bunker feeding device according to claim 1, characterized in that: A transmission crawler belt (124) arranged on the outer surface of the roller rod is movably sleeved on the outer surface of the output end of the S102 belt conveyor (12) and located on the outer surface of the S102 belt conveyor (12).

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