Automatic stemming loading device for stokehole clay gun of iron-making blast furnace and use method of automatic stemming loading device
By designing the automatic mud loading device of mud storage silt, mud push chamber and electronic scale in front of the iron-making blast furnace, the problems of safety hazards, low efficiency and insufficient automation in the existing technology are solved, and rapid and quantitative It is also safe to automatically load mud, which reduces equipment costs and is suitable for the intelligent development of iron smelting blast furnaces.
Patent Information
- Application Number
- CN202411519316.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-01-03
AI Technical Summary
The mud cannon mud loading operation in front of the iron smelting blast furnace poses safety hazards, is low efficiency and insufficient automation. The existing automatic mud loading equipment is complex, has high cost and is difficult to unload, so it is impossible to achieve true quantitative loading.
An automatic mud loading device including mud storage silt, mud push chamber and electronic scale was designed to break the mud bag through a triple-edge knife, shark fin knife cutting and hydraulic mud push cylinder to achieve rapid discharge, and use electronic scale to control it. Quantitative sludge installation simplifies equipment layout and maintenance and reduces costs.
Automatic sludge loading is realized, which improves the cutting speed and efficiency, reduces equipment costs, makes the device easy to promote and self-assemble and install, ensuring safety and simplicity of operation.
Smart Images
Figure CN119242877A_ABST
Abstract
Description
[Technical field]
[0001] The invention belongs to the technical field of iron-making blast furnace equipment, and particularly relates to an automatic mud loading device for a mud gun in front of an iron-making blast furnace and a use method thereof. [Background technology]
[0002] At present, many of the mud guns in front of iron-making blast furnaces are still in the manual mud loading mode. This operation is completed in the iron mouth dust removal hood. The area is hot and weak, and the gas and dust content are large. It is very easy to cause safety accidents, which is extremely harmful to the health of the furnace workers. In addition, the operation efficiency is poor, and the mud loading amount is not fixed. The mud loading time is long, which occupies the iron-making time. The iron-making time of the north and south fields cannot be seamlessly connected, which creates obstacles to the breakthrough of process operation capacity. It is urgently needed to improve and develop in the direction of intelligence.
[0003] The existing automation technologies include crawler robot mode, gravity and quantitative feeding mode, which have the disadvantages of complex equipment, need for professional maintenance, high equipment cost, and occupying working space. The current problem of gravity and quantitative feeding mode is that it is difficult to unload materials, still requires the cooperation of more than two people, and the degree of automation is insufficient. [Summary of the invention]
[0004] The purpose of the present invention is to provide an automatic mud loading device for a mud gun in front of an iron-making blast furnace and a use method thereof, so as to solve the problem that the existing automatic mud loading device has difficulty in unloading and cannot unload quantitatively.
[0005] The present invention adopts the following technical scheme: an automatic mud loading device for a mud cannon in front of an iron-making blast furnace, comprising a mud storage bin, a top feed port of the mud storage bin being used to receive the mud in the mud bag above; a three-edged knife for cutting the mud bag is arranged on the top of the mud storage bin;
[0006] A mud pushing chamber is connected to the bottom discharge port of the mud storage bin; both sides of the mud pushing chamber are open in the horizontal direction; one side of the mud pushing chamber is connected to the mud inlet of the mud cannon bucket through a downwardly inclined chute and a vertically arranged mud drop pipe in sequence; a mud pushing cylinder is sleeved in the other side of the mud pushing chamber and moves back and forth along its axis; a pair of shark fin knives are arranged at one end of the mud pushing cylinder close to the mud pushing chamber, and the angle formed between the top ends of the two shark fin knives is 30°;
[0007] Among them, the mud pushing cylinder is used to push a certain amount of cannon mud, so that the cannon mud can be loaded into the mud cannon mud barrel through the chute and the mud drop pipe.
[0008] Furthermore, the wall surface of the mud pushing cylinder close to one end of the mud pushing chamber is a mud pushing plate, and the end of the mud pushing cylinder away from the mud pushing chamber is sleeved on the outside of a cylindrical slide rail, and an oil cylinder is coaxially arranged in the slide rail, and a connecting plate is vertically arranged at the end of the piston rod of the oil cylinder;
[0009] An annular baffle is arranged inside the mud pushing cylinder, and the connecting plate is used to reciprocate between the baffle and the inner wall of the mud pushing plate to drive the mud pushing cylinder to reciprocate horizontally along the slide rail.
[0010] Furthermore, the connecting plate is threadedly connected to the piston rod through a nut, and a rib plate is provided at the end of the piston rod and located on the outer side of the nut.
[0011] Furthermore, an oil inlet pipe and an oil outlet pipe are connected to the oil cylinder, and the oil source of the oil inlet pipe is drawn from the hydraulic operating room of the furnace platform.
[0012] Furthermore, the bottom of the mud pushing chamber is placed on an electronic scale.
[0013] Furthermore, a dust cover is provided at the bottom of the electronic scale, and heat insulation cotton is provided between the dust cover and the electronic scale.
[0014] The second technical solution adopted by the present invention is a working method of an automatic cannon mud loading device for a cannon mud gun in front of an iron-making blast furnace, comprising the following contents:
[0015] Place the mud gun barrel under the mud drop pipe, install the movable funnel to the opening of the mud gun barrel, and keep the valve open;
[0016] The mud is loaded by pushing the mud barrel. When the pushed mud is enough to load 1 / 3 of the mud cannon, the mud pushing is stopped and the mud driving is started.
[0017] The mud gun is initialized and mud pushing is started again; when the mud pushed is enough to fill 2 / 3 of the mud gun, mud pushing is stopped and mud driving is started;
[0018] The mud gun is initialized and mud pushing is started again; when the mud pushed is enough to fill 3 / 3 of the mud gun, mud pushing is stopped and mud driving is started;
[0019] The mud gun is initialized and mud loading is completed; close the valve, remove the movable funnel, and cut off the power to the mud loading device.
[0020] The beneficial effects of the present invention are as follows: by installing a three-blade bag breaking device at the feeding of the mud storage bin, the present invention can easily break the bottom of the mud bag, and the gun mud falls into the mud storage bin, replacing the manual bag opening operation, and the material unloading speed is very fast. A pair of shark fin knives are installed at the front end of the mud pushing barrel, and the upper mud blocks are synchronously cut when the mud pushing tube advances and retreats, destroying the arched structure formed by the mud blocks after the tube retreats, accelerating the crushing of the mud blocks and descending by their own weight, and improving the efficiency of mud pushing. The bottom of the mud pushing chamber is placed on an electronic scale through a bracket, and the electronic scale can accurately control the total amount of mud loaded in the mud pushing chamber each time. The present invention occupies a small space and is easy to arrange, realizing the true automation of mud loading, and greatly reducing the equipment cost, making it easier to promote, and qualified enterprises can assemble and install it by themselves.
Brief Description of the Drawings
[0021] Figure 1It is a structural schematic diagram of an automatic cannon mud loading device for a cannon mud in front of an iron-making blast furnace according to the present invention;
[0022] Figure 2 It is a structural schematic diagram of the mud pushing cylinder and the mud pushing chamber of the present invention;
[0023] Figure 3 The present invention is a working flow chart of an automatic cannon mud loading device for a cannon in front of an iron-making blast furnace.
[0024] Among them, 1. oil inlet pipe; 2. oil cylinder; 26. oil inlet; 27. oil outlet; 28. slide rail; 29. ear seat;
[0025] 3. Mud pusher; 30. Stopper; 31. Connecting plate; 32. Nut; 33. Rib plate; 34. Countersunk screw; 35. Mud pusher; 36. Piston rod;
[0026] 4. Mud pushing chamber; 5. Fish fin knife; 6. Mud storage bin; 7. Chute; 8. Fixed bucket; 9. Dust hood; 10. Mud drop tube; 11. Valve; 12. Movable bucket; 13. Mud cannon; 14. Limit rope; 15. Upper limiter; 16 Lower limiter; 17. Counterweight; 18. Bracket; 19. Electronic scale; 20. Insulation cotton; 21. Driving; 22. Mud bag; 23. Three-edged knife; 24. Smart display screen. [Specific implementation method]
[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] The present invention provides a device for automatically loading mud into a mud cannon in front of an iron-making blast furnace. Figure 1 As shown, it includes an inverted cone-shaped mud storage bin 6, the top feed port of the mud storage bin 6 is used to receive the cannon mud in the upper mud bag 22; the top of the mud storage bin 6 is provided with a three-edged knife 23 for cutting the mud bag 22; the three-edged knife 23 bag breaking device is installed at the mud storage bin 6, and the mud bag is lifted to the top of the mud storage bin 6 by the furnace crane 21, and the bottom of the mud bag below can be broken by the three-edged knife, and the cannon mud falls into the mud storage bin 6, replacing the manual bag opening operation. Make a protective cap and install it during maintenance to prevent injury.
[0029] The bottom discharge port of the mud storage bin 6 is connected to a mud pushing chamber 4; both sides of the mud pushing chamber 4 are open in the horizontal direction; wherein, one side of the mud pushing chamber 4 is connected to the mud inlet of the mud gun mud barrel 13 through a downwardly inclined chute 7 and a vertically arranged mud drop pipe 10 in turn; the other side of the mud pushing chamber 4 is equipped with a mud pushing cylinder 3 that moves back and forth along its axis; a pair of shark fin knives 5 are arranged at one end of the mud pushing cylinder 3 close to the mud pushing chamber 4, and the angle formed between the tops of the two shark fin knives 5 is 30°. When the mud pushing cylinder 3 moves back and forth along its axis, it simultaneously cuts the mud blocks above the mud pushing chamber 4, destroys the arched structure formed by the mud blocks after the cylinder is withdrawn, accelerates the crushing and downward movement of the mud blocks by their own weight, and improves the mud pushing efficiency.
[0030] The mud pushing tube 3 is used to push a certain amount of cannon mud, so that the cannon mud is loaded into the mud cannon mud barrel 13 through the chute 7 and the mud drop pipe 10.
[0031] A fixed funnel 8 is arranged on the top of the mud drop pipe 10, and a movable funnel 12 is also arranged at the mud inlet of the gun mud barrel 13, so as to better collect the gun mud. A valve 11 is arranged at the bottom of the mud drop pipe 10, so as to control the time of unloading.
[0032] In some embodiments, Figure 2 As shown, the wall surface of the mud pushing cylinder 3 close to one end of the mud pushing chamber 4 is a mud pushing plate 35, and the end of the mud pushing cylinder 3 away from the mud pushing chamber 4 is sleeved on the outside of a cylindrical slide rail 28, and an oil cylinder 2 is coaxially arranged in the slide rail 28, and a connecting plate 31 is vertically arranged at the end of the piston rod 36 of the oil cylinder 2. An annular baffle 30 is arranged inside the mud pushing cylinder 3, and the connecting plate 31 is used to reciprocate between the baffle 30 and the inner wall of the mud pushing plate 35, so as to drive the mud pushing cylinder 3 to reciprocate horizontally along the slide rail 28.
[0033] In some embodiments, Figure 2 As shown, the connecting plate 31 is threadedly connected to the piston rod 36 via a nut 32 , and a rib plate 33 is provided at the end of the piston rod 36 and located outside the nut 32 .
[0034] In some embodiments, Figure 2 As shown, the oil cylinder 2 is connected with an oil inlet pipe 1 and an oil outlet pipe, and the oil source of the oil inlet pipe 1 is drawn from the hydraulic operating room of the furnace platform, replacing an independent hydraulic station.
[0035] In some embodiments, Figure 1 As shown, the bottom of the mud pushing chamber 4 is placed on an electronic scale 19 through a bracket 18. It is used to accurately control the total amount of mud loaded in the mud pushing chamber 4 each time.
[0036] In some embodiments, Figure 1As shown, a dust cover 9 is provided at the bottom of the electronic scale 19, and heat insulation cotton 20 is provided between the dust cover 9 and the electronic scale 19. The heat insulation cotton 20 can insulate and keep the temperature of the device stable.
[0037] In some embodiments, Figure 1 As shown, a limit rope 14 is installed on the mud pushing tube 3 and is led to the mud gun operating position through a pulley. The end of the limit rope 14 is installed with an upper limiter 15, a lower limiter 16 and a counterweight 17 in sequence from top to bottom, which is convenient for automatically controlling the stroke of the mud pushing tube 3.
[0038] In some embodiments, Figure 1 As shown, the whole device is controlled by a remote control device. An electronic screen 24 is set on site to display and record the mud loading amount in real time. The instrument control process is set, and the mud loading operation can be completed by one person through a remote control with one button.
[0039] The three-edged knife 23 of the automatic mud loading device for the mud gun in front of the iron-making blast furnace of the present invention breaks the mud bag 22 to drop the gun mud into the mud storage bin 6, and the gun mud then falls into the mud pushing chamber 4 under the action of its own weight, and the oil cylinder 2 is started to push the foamed mud in the mud pushing chamber 4 into the chute 7 and fall into the fixed funnel 8, which is connected to the mud dropping pipe 10 vertically passing through the dust removal cover 9, and the lower mouth of the mud dropping pipe 10 is installed with a valve 11, which is opened when loading mud and closed when not in use. The mud dropping pipe 10 is directly opposite to the mud loading port of the mud gun, and a movable funnel 12 is installed on the mud loading port. The gun mud can be quantitatively put into the mud gun mud tube 13 from the mud storage bin 6, and the mud pushing tube 3 is started to push the mud and continue to load the mud until the specified amount.
[0040] like Figure 3 As shown, the present invention also provides a working process of an automatic cannon mud loading device for a cannon in front of an iron-making blast furnace, which is:
[0041] Mud gun mud tube 13 is placed below mud drop pipe 10, movable funnel 12 is installed to the opening of mud gun mud tube 13, valve 11 remains open. To ensure that the mud amount of mud gun mud tube 13 in mud storage bin 6 is enough to use at least once.
[0042] The mud is loaded by the pushing action of the mud pushing tube 3, and the measurement and coordination of the electronic scale 19 are used. When the pushed mud is enough to load 1 / 3 of the mud gun, the mud pushing is stopped and the mud driving is started;
[0043] The mud gun is initialized and the mud pushing is started again; through the measurement cooperation of the electronic scale 19, when the mud pushed is enough to fill the mud gun to 2 / 3, the mud pushing is stopped and the mud driving is started;
[0044] The mud gun is initialized and the mud pushing is started again; through the measurement cooperation of the electronic scale 19, when the mud pushed is enough to fill the mud gun to 3 / 3, the mud pushing is stopped and the mud driving is started;
[0045] The mud gun is initialized and the mud loading is completed; the valve 11 is closed, the movable funnel 12 is removed, and the mud loading device is powered off.
[0046] If all the cannon mud is piled up at the mouth of the mud cannon at once, it is easy to cause material spillage. Therefore, this application adopts three times of mud loading, and the mud cannon pushes the mud piston in the middle to squeeze the loaded mud to the front end of the mud chamber for compaction, freeing up the rear space for further mud loading, and filling it up three times. Manual operation can be used to rush the mud at any time. Among them, the stopping of the mud pushing action can be judged manually, for example, when it is manually judged that 3 / 3 of the mud chamber of the mud cannon is filled, the mud pushing is stopped, and the subsequent mud loading is completed.
[0047] The present invention can easily break the bottom of the mud bag by installing a three-blade bag breaking device at the feeding of the mud storage bin, and the cannon mud falls into the mud storage bin, replacing the manual bag opening operation, and the material unloading speed is very fast. A pair of shark fin knives are installed at the front end of the mud pushing barrel, and the upper mud blocks are synchronously cut when the mud pushing tube advances and retreats, destroying the arched structure formed by the mud blocks after the tube retreats, accelerating the crushing of the mud blocks and descending by their own weight, and improving the efficiency of mud pushing. The present invention occupies a small space and is easy to arrange, realizing the true automation of mud loading, and greatly reducing the equipment cost, making it easier to promote, and qualified enterprises can assemble and install it by themselves.
Claims
1. An automatic mud loading device for a mud gun in front of an iron-making blast furnace, characterized in that: It comprises a mud storage bin (6), wherein the top feed port of the mud storage bin (6) is used to receive the cannon mud in the mud bag (22) above; the top of the mud storage bin (6) is provided with a three-edged knife (23) for cutting open the mud bag (22); A mud pushing chamber (4) is connected to the bottom discharge port of the mud storage bin (6); both sides of the mud pushing chamber (4) are open in the horizontal direction; wherein one side of the mud pushing chamber (4) is connected to the mud inlet of the mud gun bucket (13) through a downwardly inclined chute (7) and a vertically arranged mud drop pipe (10) in sequence; a mud pushing cylinder (3) is installed in the other side of the mud pushing chamber (4) and moves back and forth along its axis; a pair of shark fin knives (5) are arranged at one end of the mud pushing cylinder (3) close to the mud pushing chamber (4), and the angle formed between the top ends of the two shark fin knives (5) is 30°; The mud pushing cylinder (3) is used to push a certain amount of cannon mud, so that the cannon mud is loaded into the mud cannon mud barrel (13) through the chute (7) and the mud drop pipe (10).
2. The automatic mud loading device for the mud gun in front of the iron-making blast furnace according to claim 1 is characterized in that: The wall surface of the mud pushing cylinder (3) close to one end of the mud pushing chamber (4) is a mud pushing plate (35), and the end of the mud pushing cylinder (3) away from the mud pushing chamber (4) is sleeved on the outside of a cylindrical slide rail (28), and an oil cylinder (2) is coaxially arranged in the slide rail (28), and a connecting plate (31) is vertically arranged at the end of the piston rod (36) of the oil cylinder (2); An annular baffle (30) is arranged inside the mud pushing cylinder (3), and the connecting plate (31) is used to reciprocate between the baffle (30) and the inner wall of the mud pushing plate (35) to drive the mud pushing cylinder (3) to reciprocate horizontally along the slide rail (28).
3. The automatic mud loading device for the mud gun in front of the iron-making blast furnace according to claim 2, characterized in that: The connecting plate (31) is threadedly connected to the piston rod (36) via a nut (32); a rib plate (33) is provided at the end of the piston rod (36) and located outside the nut (32).
4. The automatic mud loading device for the mud gun in front of the iron-making blast furnace as claimed in claim 3 is characterized in that: The oil cylinder (2) is connected to an oil inlet pipe (1) and an oil outlet pipe, and the oil source of the oil inlet pipe (1) is drawn from the hydraulic operating room of the furnace platform.
5. The automatic mud loading device for the mud gun in front of an ironmaking blast furnace according to any one of claims 1 to 4, characterized in that: The bottom of the mud pushing chamber (4) is placed on an electronic scale (19).
6. The automatic mud loading device for the mud gun in front of the iron-making blast furnace as claimed in claim 5, characterized in that: A dust cover (9) is provided at the bottom of the electronic scale (19), and heat insulation cotton (20) is provided between the dust cover (9) and the electronic scale (19).
7. A working method of an automatic mud loading device for a mud gun in front of an ironmaking blast furnace, characterized in that: An automatic mud loading device for a mud gun in front of an ironmaking blast furnace according to any one of claims 1 to 6 comprises the following contents: The mud gun mud barrel (13) is placed below the mud drop pipe (10), and the movable funnel (12) is installed at the opening of the mud gun mud barrel (13), and the valve (11) is kept in an open state; The mud is loaded by the pushing action of the mud pushing tube (3). When the pushed mud is enough to load 1 / 3 of the mud cannon, the mud pushing is stopped and the mud driving is started. The mud gun is initialized and mud pushing is started again; when the mud pushed is enough to fill 2 / 3 of the mud gun, mud pushing is stopped and mud driving is started; The mud gun is initialized and mud pushing is started again; when the mud pushed is enough to fill 3 / 3 of the mud gun, mud pushing is stopped and mud driving is started; The mud gun is initialized and the mud loading is completed; the valve (11) is closed, the movable funnel (12) is removed, and the mud loading device is powered off.