Hydraulic mud gun machine with stable support structure

Abstract

This invention relates to the field of blast furnace ironmaking technology, and more particularly to a hydraulic mud gun machine with a stable support structure. It includes a base, a drive assembly mounted on the base, a hydraulic cylinder mounted on the drive assembly, a mud storage cylinder fixedly connected to the hydraulic cylinder, and a main mud discharge pipe fixedly connected to the mud storage cylinder; circumferentially distributed sliding plates, all slidably connected to the main mud discharge pipe, and each circumferentially distributed sliding plate slidably connected to a connecting rod; and a blocking ring fixedly connected to the circumferentially distributed connecting rod, with a guide plate fixedly connected to the blocking ring. This invention uses the blocking ring, guide plate, and connecting rod to form a pre-positioned component. When the pre-positioned component is placed inside the blast furnace, and the mud comes into contact with it, the component and the mud are compressed against each other. The mud flows out from the gap between the blocking ring and the main mud discharge pipe, ensuring uniform contact between the mud and the taphole, creating a more stable contact and forming a reliable "mud bag," thus reducing the possibility of the taphole opening spontaneously.

Description

Technical Field

[0001] This invention relates to the field of blast furnace ironmaking technology, and in particular to a hydraulic mud gun machine with a stable support structure. Background Technology

[0002] Hydraulic mud guns are an indispensable and important device in blast furnace ironmaking. Their main task is to accurately and reliably plug the taphole of the blast furnace with mud, and then ensure that the blast furnace can carry out the next round of production after the plugging is completed.

[0003] The working principle of a hydraulic mud gun is that the extruder forces the internal mud through the nozzle to the taphole. The mud then passes through the taphole and, under the combined pressure of the furnace and the mud-beating machine, cannot move further. It adheres to the periphery of the taphole, forming a "mud bag." The main function of this "mud bag" is to protect the furnace wall and maintain stability between the taphole and the mud. However, due to the mud's own weight and internal pressure, the mud tends to flow downwards from the taphole, resulting in an uneven amount of mud at the top and bottom. This makes it impossible to ensure uniform contact between the mud gun and the taphole, preventing the formation of a reliable "mud bag." This leads to a failure to seal the taphole, and slag and iron flow out from the gaps between the mud and the taphole. In cases of sluggish firing, the flowing slag and iron may even directly contact the hydraulic mud gun, damaging the equipment and affecting blast furnace production. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, the present invention provides a hydraulic mud gun with a stable support structure.

[0005] The technical implementation scheme of the present invention is as follows: a hydraulic mud gun with a stable support structure includes a base, a drive assembly mounted on the base, a hydraulic cylinder mounted on the drive assembly, a mud storage cylinder fixedly connected to the hydraulic cylinder, a telescopic part of the hydraulic cylinder being slidably and sealingly connected to the mud storage cylinder, the mud storage cylinder having a feed port, and a main mud discharge pipe fixedly connected to the mud storage cylinder; sliding plates, circumferentially distributed, all slidably connected to the main mud discharge pipe, each circumferentially distributed sliding plate being slidably connected to a connecting rod; a blocking ring fixedly connected to the circumferentially distributed connecting rod, the blocking ring being fixedly connected to a guide plate, and a gap between the blocking ring and the main mud discharge pipe; and a power assembly mounted on the hydraulic cylinder for driving all the sliding plates to move.

[0006] As a further preferred embodiment, both the blocking ring and the guide plate are frustum-shaped. The inner diameter of the blocking ring gradually decreases from the end closer to the main mud outlet pipe to the end farther away from the main mud outlet pipe, and the outer diameter of the guide plate gradually increases from the end closer to the main mud outlet pipe to the end farther away from the main mud outlet pipe, in order to guide the mud.

[0007] As a further preferred embodiment, the power assembly includes: a first hydraulic push rod, fixedly connected to the hydraulic cylinder via a mounting bracket, the telescopic end of the first hydraulic push rod being fixedly connected to a first support frame, the first support frame being slidably connected to the main sludge discharge pipe; support rods, circumferentially distributed, all fixedly connected to the first support frame, each support rod corresponding to a sliding plate, the main sludge discharge pipe being fixedly connected to circumferentially distributed fixing members, each support rod corresponding to a fixing member, the fixing members being slidably connected to the corresponding support rods, each support rod being provided with an L-shaped rod, each circumferentially distributed sliding plate being fixedly connected to two mating blocks, the two mating blocks on the same sliding plate being located on the movement path of the corresponding L-shaped rod; and limiting components, corresponding to each sliding plate, respectively disposed on the corresponding sliding plates, used to limit the corresponding connecting rods.

[0008] As a further preferred embodiment, the limiting component includes a fixed cylinder, which is fixedly connected to the corresponding sliding plate. The fixed cylinder is slidably connected to a limiting plate, which is used to limit the corresponding connecting rod. The support rod is fixedly connected to a protruding post, which is slidably connected to the corresponding limiting plate.

[0009] As a further preferred embodiment, it also includes: a nozzle, slidably connected to the main mud discharge pipe, the nozzle being located between the main mud discharge pipe and the blocking ring, and a gap being formed between the nozzle and the blocking ring; the nozzle being fixedly connected to the circumferentially distributed sliding plates; the circumferentially distributed connecting rods being slidably connected to the nozzle and passing through the nozzle; and secondary mud discharge ports, circumferentially distributed, all disposed on the nozzle.

[0010] As a further preferred embodiment, the inner diameter of the nozzle on the side away from the main mud outlet pipe gradually decreases from the end closer to the blocking ring to the end farther from the blocking ring, while the inner diameter of the secondary mud outlet gradually increases from the side closer to the central axis of the nozzle to the side farther away.

[0011] As a further preferred embodiment, a corrugated strip is provided on the side of the nozzle away from the main mud discharge pipe.

[0012] As a further preferred embodiment, it also includes: a second hydraulic push rod, fixed to the hydraulic cylinder by a mounting bracket, the telescopic end of the second hydraulic push rod being fixed to a second support frame; a protective cover, disposed on the second support frame, the circumferentially distributed fixing members being used to guide the protective cover, and a gap being formed between the protective cover and the main mud discharge pipe; and a swing assembly, disposed on the second support frame, for driving the protective cover to swing.

[0013] As a further preferred embodiment, the protective cover has an annular inclined surface inside, the diameter of which gradually increases from the side closer to the mud storage cylinder to the side farther away from the mud storage cylinder, and the protective cover is used to squeeze the taphole clay outside the blast furnace.

[0014] As a further preferred embodiment, the swing assembly includes: two first hinged links, arranged symmetrically at the center, both fixed to the second support frame; and two second hinged links, arranged symmetrically at the center, both fixed to the protective cover. The line connecting the two first hinged links is perpendicular to the line connecting the two second hinged links in space. A support ring is fixedly connected between the two first hinged links and the two second hinged links. The two first hinged links, the two second hinged links, and the support ring together drive the protective cover to swing.

[0015] The present invention has the following advantages: The present invention uses a pre-positioned component composed of a blocking ring, a guide plate, and a connecting rod. The pre-positioned component is placed in the blast furnace. When the taphole clay comes into contact with the pre-positioned component, the taphole clay moves evenly to the periphery under the guidance of the blocking ring and the guide plate. Then the taphole clay flows out from the gap between the blocking ring and the main taphole tube. The taphole clay comes into uniform contact with the taphole, making the contact between the taphole clay and the taphole more stable. Subsequently, a reliable "clay bag" is formed, which effectively reduces the situation of taphole opening caused by the failure of the "clay bag" due to the weight of the taphole clay itself.

[0016] This invention connects the secondary mud outlet with the external mud by moving the nozzle. A portion of the mud flows out from the secondary mud outlet to fill the blind area at the edge of the main mud outlet pipe, thereby increasing the coverage and uniformity of the mud. This improves the stability between the mud and the tapping hole, reduces the probability of blockage in the nozzle area, and enhances the stability and efficiency of mud pushing.

[0017] This invention improves the stability between the taphole and the taphole by having the protective cover contact the outer wall of the taphole, thereby reducing the occurrence of slag and iron outflow. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a three-dimensional structural diagram of the mud storage cylinder and the feeding port of the present invention;

[0020] Figure 3 This is a schematic diagram of the planar structure of the main mud discharge pipe, fixing component, and nozzle of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the fixing cylinder and nozzle of the present invention;

[0022] Figure 5 This is an exploded three-dimensional structural diagram of the connecting rod and support rod of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the nozzle and secondary mud outlet of the present invention;

[0024] Figure 7 This is a three-dimensional exploded view of the fixed cylinder and limiting plate of the present invention;

[0025] Figure 8 For the present invention Figure 6 Enlarged 3D structural diagram at point A;

[0026] Figure 9 This is a three-dimensional structural diagram of the first and second hinged connecting rods of the present invention.

[0027] In the attached diagram, the following are the reference numerals: 1-base, 2-hydraulic cylinder, 3-sludge storage cylinder, 4-feeding port, 5-main sludge discharge pipe, 6-sliding plate, 7-connecting rod, 71-blocking ring, 72-guide plate, 201-first hydraulic push rod, 202-first support frame, 203-support rod, 204-fixing component, 205-L-shaped rod, 206-fitting block, 301-fixed cylinder, 302-limiting plate, 303-protruding column, 401-nozzle, 402-secondary sludge discharge port, 501-second hydraulic push rod, 502-second support frame, 503-protective cover, 504-first hinged connecting rod, 505-second hinged connecting rod, 506-support ring. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] When the clay is injected into the taphole, due to factors such as the clay's own weight and internal pressure, the clay in the taphole tends to flow downwards towards the lower part of the taphole, resulting in a difference in the amount of clay in the upper and lower parts of the taphole. This makes it impossible to ensure uniform contact between the clay cannon and the taphole, preventing the clay from forming a reliable "clay bag".

[0030] Example 1

[0031] A hydraulic mud gun with a stable support structure, such as Figures 1-8As shown, the system includes a base 1, a drive assembly mounted on the base 1, a hydraulic cylinder 2 mounted on the drive assembly of the base 1, a mud storage cylinder 3 fixedly connected to the hydraulic cylinder 2, and a sliding connection between the telescopic part of the hydraulic cylinder 2 and the mud storage cylinder 3. The mud storage cylinder 3 is provided with a feed port 4, a main mud discharge pipe 5 fixedly connected to the mud storage cylinder 3, and sliding plates 6 arranged in a circular pattern, all slidably connected inside the main mud discharge pipe 5. Each of the circumferentially distributed sliding plates 6 is slidably connected to a connecting rod 7; and a blocking ring 71 fixedly connected to the circumferentially distributed connecting rod 7. The blocking ring 71 is fixedly connected to the guide plate 72, and there is a gap between the blocking ring 71 and the main mud discharge pipe 5; the power assembly is set on the hydraulic cylinder 2 and is used to drive all the sliding plates 6 to move. The blocking ring 71 and the guide plate 72 are both frustum-shaped. The inner diameter of the blocking ring 71 gradually decreases from the end near the main mud discharge pipe 5 to the end away from the main mud discharge pipe 5, and the outer diameter of the guide plate 72 gradually increases from the end near the main mud discharge pipe 5 to the end away from the main mud discharge pipe 5, which is used to guide the mud.

[0032] In the above scheme, the drive assembly is used to drive the hydraulic cylinder 2 and its parts to rotate and move towards the tapping port via the mounting base. The mud storage cylinder 3 is used to store the tapping mud. The telescopic part of the hydraulic cylinder 2 is used to squeeze the mud in the mud storage cylinder 3. The left side of the main mud discharge pipe 5 is provided with a main cavity and three secondary cavities. There are three circumferentially distributed sliding plates 6. Each sliding plate 6 slides in the corresponding secondary cavity in the main mud discharge pipe 5. The three circumferentially distributed connecting rods 7, the blocking ring 71 and the guide plate 72 are pre-formed integral parts. The material is a high-temperature resistant alloy, which is used to reliably guide the tapping mud and improve the success rate of "mud bag". The sliding plate 6 and the corresponding connecting rod 7 have matching notches. The blocking ring 71 and the guide plate 72 are used together to guide the tapping mud in the blast furnace.

[0033] like Figures 1-9 As shown, the power assembly includes: a first hydraulic push rod 201, which is fixed to the hydraulic cylinder 2 via a mounting bracket; a first support frame 202 is fixed to the telescopic end of the first hydraulic push rod 201; the first support frame 202 is slidably connected to the main mud discharge pipe 5; support rods 203, which are circumferentially distributed and fixed to the first support frame 202; each support rod 203 corresponds to a sliding plate 6; the main mud discharge pipe 5 is fixed to circumferentially distributed fixing parts 204; each support rod 203 corresponds to a fixing part 204; the fixing parts 204 are slidably connected to the corresponding support rod 203; each support rod 203 is provided with an L-shaped rod 205; each circumferentially distributed sliding plate 6 is fixed with two mating blocks 206; the two mating blocks 206 on the same sliding plate 6 are located on the movement path of the corresponding L-shaped rod 205; and a limiting assembly, which corresponds to each sliding plate 6 and is respectively provided on the corresponding sliding plate 6, for limiting the corresponding connecting rod 7.

[0034] In the above scheme, there can be several first hydraulic push rods 201 to ensure stable transmission. The first support frame 202 is composed of a connecting ring and a connecting plate. The three circumferentially distributed support rods 203 are all fixedly connected to the connecting ring of the first support frame 202. The left side of the three circumferentially distributed fixing parts 204 are all provided with inclined parts. The L-shaped rod 205 is located on the right side of the support rod 203. The L-shaped rod 205 is used to push the corresponding two mating blocks 206 to adjust the position of the sliding plate 6.

[0035] like Figure 4 Figure 7 and Figure 8 As shown, the limiting component includes a fixed cylinder 301, which is fixedly connected to the corresponding sliding plate 6. The fixed cylinder 301 is slidably connected to a limiting plate 302, which is used to limit the corresponding connecting rod 7. The support rod 203 is fixedly connected to a protrusion 303, which is slidably connected to the corresponding limiting plate 302.

[0036] In the above scheme, the adjacent connecting rods 7 are limited by the limiting plates 302. Each of the three circumferentially distributed limiting plates 302 is provided with a sliding groove. Figure 6 Taking the direction as an example, the slide of the limiting plate 302 gradually rises from left to right. The slide of the limiting plate 302 is used to control the locking and unlocking of the connecting rod 7 by being guided by the corresponding protrusion 303.

[0037] When using this device to seal the taphole of a blast furnace, the starting limit plate 302 needs to be adjusted to the designated position (the designated position is the right side of the groove of the corresponding limit plate 302 with the protrusion 303), and then the connecting rod 7 needs to be inserted into the sliding plate 6.

[0038] Preparation:

[0039] First, ensure the device is in the standby position. Then, fill the mud storage cylinder 3 with tapping mud through the feeding port 4. Next, activate the first hydraulic push rod 201. The telescopic end of the first hydraulic push rod 201 drives all the support rods 203 to move to the right via the first support frame 202. The support rods 203 then move the adjacent protrusions 303 and L-shaped rods 205 together. During this process, the support rods 203 slide along the adjacent fixing member 204, and the protrusions 303 slide within the inclined grooves of the adjacent limiting plate 302. The protrusions 303 press against the limiting plate 302 to... Figure 7 Taking the direction as an example, the limiting plate 302 slides downward within the adjacent fixed cylinder 301 until the protrusion 303 and the L-shaped rod 205 reach the center. Figure 7 After reaching the indicated state, the L-shaped rod 205 contacts the mating block 206 on the right side of the adjacent sliding plate 6, and the telescopic end of the first hydraulic push rod 201 stops moving.

[0040] After the L-shaped rod 205 contacts the corresponding mating block 206 on the right, the operator places all the connecting rods 7 horizontally on the left side of the corresponding sliding plate 6, aligning all the connecting rods 7 with their respective sliding plates 6. Then, the connecting rods 7 move the blocking ring 71 and the guide plate 72 to the right, inserting all the connecting rods 7 into the adjacent sliding plates 6 until the notch of the connecting rod 7 reaches the... Figure 7 After reaching the indicated state, the connecting rod 7, the blocking ring 71, and the guide plate 72 stop moving. The first hydraulic push rod 201 is activated, and the first support frame 202 moves to the left. The protruding post 303 presses against the adjacent limiting plate 302, thereby... Figure 7 Taking the direction as an example, the limiting plate 302 moves upward until the limiting plate 302 locks the corresponding connecting rod 7. At this time, the L-shaped rod 205 contacts the mating block 206 on the left side of the adjacent sliding plate 6, and the limiting plate 302 contacts the notch of the adjacent connecting rod 7. At this time, the limiting plate 302 completes the limiting of the adjacent connecting rod 7. Then, the staff put the gun clay into the clay storage cylinder 3 through the feeding port 4 and wait for the blast furnace to finish tapping iron before blocking the gun.

[0041] Plugging Operation: After tapping iron from the blast furnace, activate the drive assembly on base 1 to rotate all parts on the mounting base from the standby position to the tapping position. Then, activate the drive assembly, which moves hydraulic cylinder 2 and all its parts to insert the main mud pipe 5 into the tapping opening. Once the blocking ring 7 passes through the tapping opening, the drive assembly stops moving. Then, activate the telescopic part of hydraulic cylinder 2 to expel the tapping mud from the mud storage cylinder 3 through the main mud pipe 5. After being expelled, the tapping mud contacts the guide plate 72. The outer surface of the guide plate 72 then gradually guides the contacting tapping mud, ensuring it enters the muzzle evenly. Finally, the blocking ring 71 contacts the tapping mud, and its inner surface effectively... The movement of the taphole clay is blocked and guided towards the gap between the blocking ring 71 and the main taphole tube 5. The blocking ring 71 and the guide plate 72 jointly squeeze the taphole clay, making it evenly contact the taphole clay with the furnace opening, forming an effectively fixed "clay bag". This effectively reduces the situation of the taphole opening due to the failure of the "clay bag" caused by the taphole clay's own weight. Then, the first hydraulic push rod 201 is activated, causing the protrusion 303 to press the adjacent limiting plate 302 downward. The limiting plate 302 loses contact with the adjacent connecting rod 7 until the fixed cylinder 301 contacts the mating block 206 on the right side of the adjacent sliding plate 6. At this time, the limiting plate 302 loses its limiting effect on the adjacent connecting rod 7. Then, the telescopic end of the first hydraulic push rod 201 stops moving.

[0042] When the limiting plate 302 loses its limiting effect on the adjacent connecting rod 7, the drive assembly is activated. The drive assembly controls the hydraulic cylinder 2, the mud storage cylinder 3, and the mud outlet 5 to move to the right. The hydraulic cylinder 2 drives the first hydraulic push rod 201 to move together through the mounting bracket. The protruding post 303 drives the adjacent L-shaped rod 205 to move. The L-shaped rod 205 drives the corresponding sliding plate 6 to move through the corresponding mating block 206 on the right side. The sliding plate 6 drives the adjacent fixed cylinder 301 to move together. The fixed cylinder 301 and the protruding post 303 together drive the limiting plate 302 to move. At this time, the blocking ring 71, the guide plate 72, and all the connecting rods 7 do not move under the action of the tapping mud (that is, the pre-positioned part stops moving at this time). The tapping mud is in contact with the pre-positioned part. Afterwards, the pre-placed component restricts the movement of the taphole clay. Under the guidance of the guide plate 72, the taphole clay moves to the periphery. Then, the blocking ring 71 squeezes the taphole clay, causing it to move closer to the outside of the blast furnace, thus forming a reliable "clay bag". This effectively reduces the possibility of the taphole opening due to the failure of the "clay bag". During this process, the connecting rod 7 slides relative to the adjacent sliding plate 6. The telescopic part of the hydraulic cylinder 2 continuously pushes the taphole clay in the clay storage cylinder 3 through the main clay discharge pipe 5 to the taphole. Then, the connecting rod 7 loses contact with the adjacent sliding plate 6 until the main clay discharge pipe 5 completely loses contact with the taphole. After the taphole is filled with taphole clay, the telescopic part of the hydraulic cylinder 2 stops pushing the taphole clay in the clay storage cylinder 3, thus completing the tapping process.

[0043] Final touches:

[0044] After the main discharge pipe 5 stops injecting clay into the taphole, the left side of the main discharge pipe 5 continues to contact the clay cannon at the taphole. At this time, the discharge pipe 5 remains in a compressed state for a period of time (this period of time varies depending on the type of clay, and is not specified here), allowing the clay to dry and solidify at high temperature. After the clay has dried and solidified, the telescopic part of the hydraulic cylinder 2 retracts, losing its compressive force on the clay. Then, the drive assembly on the base 1 is activated, and the drive assembly drives all its parts to reset. After the temperature of the main discharge pipe 5 cools down, the residual slag and iron on it are cleaned, and at the same time, the process is repeated... Fill the mud cylinder 3 with gunning mud through the feeding port 4, and then insert the next pre-placed part into the corresponding sliding plate 6. When all three connecting rods 7 are in place, the pre-placed part stops moving. Then, start the first hydraulic push rod 201 to make all the limiting plates 302 move in opposite directions and limit the adjacent connecting rods 7 respectively. Repeat the above blocking work when waiting for the next blocking. It should be noted that the pre-placed part is a disposable workpiece. When the blocking is completed and the blast furnace is used for ironmaking, the pre-placed part will be melted by high temperature and eventually become molten and flow into the blast furnace.

[0045] Example 2

[0046] Based on Example 1, such as Figures 3-6As shown, it also includes: a nozzle 401, which is slidably connected to the main mud discharge pipe 5. The nozzle 401 is located between the main mud discharge pipe 5 and the blocking ring 71, and there is a gap between the nozzle 401 and the blocking ring 71. The nozzle 401 is fixedly connected to the circumferentially distributed sliding plates 6. The circumferentially distributed connecting rods 7 are slidably connected to the nozzle 401 and pass through the nozzle 401. The auxiliary mud discharge ports 402 are circumferentially distributed and are all set on the nozzle 401. The inner diameter of the nozzle 401 on the side away from the main mud discharge pipe 5 gradually decreases from the end near the blocking ring 71 to the end away from the blocking ring 71. The inner diameter of the auxiliary mud discharge ports 402 gradually increases from the side near the central axis of the nozzle 401 to the side away from it. A corrugated strip is provided on the side of the nozzle 401 away from the main mud discharge pipe 5.

[0047] In the above scheme, the nozzle 401 is provided with an inclined surface and three through slots. The three connecting rods 7 respectively pass through the corresponding barrel slots and are slidably connected to the corresponding sliding plates 6. There are six auxiliary mud outlets 402, and all six auxiliary mud outlets 402 are located on the right side of the nozzle 401. When the nozzle 401 moves, the corrugated strips on its inclined surface drive the mud to move, loosening the mud at the nozzle position and reducing blockage. The auxiliary mud outlets 402 are used to supplement the edge blind area of ​​the main mud outlet pipe 5. The nozzle 401 and all auxiliary mud outlets 402 are designed to facilitate the discharge of mud.

[0048] When the connecting rod 7 is inserted into the adjacent sliding plate 6, the three connecting rods 7 first contact the corresponding three through slots on the nozzle 401, and then pass through the three through slots on the nozzle 401 to contact the corresponding sliding plate 6. When the sliding plate 6 moves, the sliding plate 6 drives the nozzle 401 to move together. When the main mud pipe 5 discharges mud, the mud from the main mud pipe 5 passes through the nozzle 401 and enters the taphole.

[0049] Once the pre-placed component is placed inside the blast furnace and fixed with the taphole clay, the limiting plate 302 loses its limiting effect on the corresponding connecting rod 7. The telescopic part of the hydraulic cylinder 2 stops compressing the taphole clay. Then, the drive assembly moves backward a certain distance (this distance is a specific distance, just enough to ensure that the auxiliary taphole 402 can move out of the main taphole 5). The first hydraulic push rod 201 is activated, causing all the protrusions 303 to move to the left. The protrusions 303 drive the adjacent limiting plates 302 to move towards the axis of the main taphole 5. The limiting plates 302 and the adjacent connecting rods... 7. No contact occurs until the L-shaped rod 205 contacts the mating block 206 on the left side of the adjacent sliding plate 6. The L-shaped rod 205 then presses the corresponding mating block 206 on the left side to move. The mating block 206 on the left side drives the corresponding sliding plate 6 to move to the left. All the sliding plates 6 together drive the nozzle 401 to move until all the secondary mud outlets 402 are moved out of the main mud outlet pipe 5. During this process, the movement of the nozzle 401 will drive some of the mud on it to move to the left, reducing the possibility of blockage at the nozzle 401 due to high temperature.

[0050] After all the secondary mud outlets 402 are removed from the main mud outlet pipe 5, the telescopic part of the hydraulic cylinder 2 continues to squeeze the gunning clay inside. The gunning clay located at the secondary mud outlets 402 is subjected to compressive force, and the gunning clay flows out from all the secondary mud outlets 402. The gunning clay flowing out from all the secondary mud outlets 402 comes into contact with the tapping hole, and the remaining gunning clay continues to flow out from the nozzle 401 through the main mud outlet pipe 5. The secondary mud outlets 402 fill the edge blind area of ​​the main mud outlet pipe 5, improve the coverage and filling uniformity of the gunning clay, and improve the stability between the gunning clay and the tapping hole.

[0051] After the main mud pipe 5 completely loses contact with the taphole and the taphole is filled with taphole clay, the nozzle 401 squeezes the taphole clay located on the outer wall of the taphole. Once the taphole clay has dried and solidified, the drive assembly on the base 1 is activated to rotate the entire device to the standby position. Then, the first hydraulic push rod 201 is activated, causing the limiting plate 302 to move the fixed cylinder 301 to the right until the limiting plate 302 moves to... Figure 7 In the state shown, after inserting the preset part into the corresponding sliding plate 6, you can continue with the subsequent finishing work.

[0052] Example 3

[0053] Based on Example 2, such as Figures 1-5 and Figure 9 As shown, it also includes: a second hydraulic push rod 501, which is fixed to the hydraulic cylinder 2 by a mounting bracket, and the telescopic end of the second hydraulic push rod 501 is fixed to a second support frame 502; a protective cover 503, which is set on the second support frame 502, and the circumferentially distributed fixing parts 204 are used to guide the protective cover 503, and there is a gap between the protective cover 503 and the main mud discharge pipe 5; a swing assembly, which is set on the second support frame 502, and is used to drive the protective cover 503 to swing, and the protective cover 503 has an annular inclined surface inside, the diameter of which gradually increases from the side closer to the mud storage cylinder 3 to the side farther away from the mud storage cylinder 3, and the protective cover 503 is used to squeeze the taphole clay outside the blast furnace.

[0054] In the above scheme, there can be several second hydraulic push rods 501 to ensure stable transmission. The protective cover 503 limits the taphole clay outside the blast furnace. The inclined part of the fixing member 204 is used to facilitate the entry of the protective cover 503. The second support frame 502 is composed of a sliding ring and a connecting rod. The second support frame 502 is located in the middle of the main mud outlet pipe 5. The protective cover 503 is provided with three through slots. The fixing member 204 slides in the corresponding through slots on the protective cover 503. The protective cover 503 is located on the left side of the second support frame 502. The axis of the connecting ring of the first support frame 202 coincides with the axis of the sliding ring of the second support frame 502.

[0055] like Figures 3-5 and Figure 9As shown, the swing assembly includes: two first hinge links 504, which are centrally symmetrically distributed and fixed to the second support frame 502; and two second hinge links 505, which are centrally symmetrically distributed and fixed to the cover 503. The line connecting the two first hinge links 504 and the line connecting the two second hinge links 505 are spatially perpendicular. A support ring 506 is fixedly connected between the two first hinge links 504 and the two second hinge links 505. The two first hinge links 504, the two second hinge links 505 and the support ring 506 are used together to drive the cover 503 to swing.

[0056] In the above scheme, the protective cover 503 is oscillating through the first hinged connecting rod 504 and the second hinged connecting rod 505, thereby making the protective cover 503 fit more closely to the outer wall of the tap hole. There are two first hinged connecting rods 504, one at the front and one at the back, and two second hinged connecting rods 505, one at the top and one at the bottom. Both the first hinged connecting rod 504 and the second hinged connecting rod 505 are composed of two hinged parts, which are used to squeeze the protective cover 503 through the furnace wall, causing the protective cover 503 to oscillate. The support ring 506 is located between the protective cover 503 and the annular plate of the second support frame 502, and is used to connect the hinged part on the right side of the second hinged connecting rod 505 with the hinged part on the left side of the first hinged connecting rod 504. The line connecting the two first hinged connecting rods 504 is perpendicular to the line connecting the two second hinged connecting rods 505, which improves the adaptability of the protective cover 503 to different tap hole outer walls.

[0057] After the taphole is filled with clay, the auxiliary clay outlets 402 are all located on the right side of the taphole. The second hydraulic push rod 501 is activated. The telescopic end of the second hydraulic push rod 501, through the second support frame 502, drives all the first hinged connecting rods 504 on it to move to the left. All the first hinged connecting rods 504 together drive the support ring 506 to move. The support ring 506, through all the second hinged connecting rods 505, drives the protective cover 503 to move. During this process, the protective cover 503 slides on all the fixing parts 204. As the protective cover 503 moves, it loses contact with all the fixing parts 204, and then the protective cover 503 contacts the outer edge of the blast furnace taphole. The edge of the wall presses against the protective cover 503, and the first hinged connecting rod 504 and the second hinged connecting rod 505 swing adaptively. During this process, the protective cover 503 swings relative to the support ring 506 under the action of the two second hinged connecting rods 505, and the support ring 506 swings relative to the second support frame 502 under the action of the two first hinged connecting rods 504. During this process, the drive assembly continuously drives the main mud pipe 5 and its upper parts to move to the right, and the telescopic part of the hydraulic cylinder 2 continuously presses the gun clay in the mud storage cylinder 3 until the protective cover 503 is in contact with the outer wall edge of the blast furnace taphole. Then, the telescopic end of the second hydraulic push rod 501 stops moving. At this time, the nozzle 401 loses contact with the taphole, and the drive assembly stops moving.

[0058] As the taphole clay in the clay storage cylinder 3 continues to be extruded, and because the taphole is filled with taphole clay, the clay will only be extruded from all the secondary tapholes 402. Subsequently, the taphole clay on the outer wall of the taphole forms a protrusion in the shape of a protective cover 503. The telescopic part of the hydraulic cylinder 2 stops moving, causing the taphole clay on the outer wall of the taphole to form a protrusion in the shape of a protective cover 503, which improves the stability between the taphole and the taphole clay. At the same time, the protrusion formed by the protective cover increases the amount of filler between the taphole and the taphole clay, reducing the outflow of slag and iron. After the nozzle 401 squeezes out the clay from the outer wall of the taphole and allows it to dry and solidify, the second hydraulic push rod 501 is activated, causing the protective cover 503 to move to the right. This causes the protective cover 503 to lose contact with the outer wall of the taphole and the clay. As it moves, the protective cover 503 contacts the inclined portion on the left side of the corresponding fixing member 204. The inclined portion on the left side of the fixing member 204 guides the protective cover 503 until the protective cover 503, the first hinged connecting rod 504, and the second hinged connecting rod 505 have all moved to the desired position. Figure 3 Once the indicated state is reached, the second hydraulic push rod 501 stops moving, and then the drive assembly is activated to rotate the entire device to the standby position.

[0059] In summary, the invention includes, but is not limited to, the above embodiments. Any equivalent substitutions or partial improvements made under the spirit and principles of this invention shall be considered to be within the protection scope of this invention.

Claims

1. A hydraulic mud gun with a stable support structure, comprising a base (1), wherein a drive assembly is mounted on the base (1), and a hydraulic cylinder (2) is mounted on the drive assembly of the base (1). A mud storage cylinder (3) is fixedly connected to the hydraulic cylinder (2), and the telescopic portion of the hydraulic cylinder (2) is in a sealed sliding connection with the mud storage cylinder (3). The mud storage cylinder (3) is provided with a feed port (4), and a main mud discharge pipe (5) is fixedly connected to the mud storage cylinder (3). The feature is that... include: The sliding plates (6) are distributed in a circle and are all slidably connected inside the main mud outlet pipe (5). The circumferentially distributed sliding plates (6) are all slidably connected to connecting rods (7). A blocking ring (71) is fixed to the connecting rod (7) distributed in a circle. A guide plate (72) is fixed to the blocking ring (71). There is a gap between the blocking ring (71) and the main mud outlet pipe (5). A power unit, mounted on the hydraulic cylinder (2), is used to drive all the sliding plates (6) to move.

2. A hydraulic mud gun with a stable support structure according to claim 1, characterized in that, Both the blocking ring (71) and the guide plate (72) are frustum-shaped. The inner diameter of the blocking ring (71) gradually decreases from the end near the main mud outlet pipe (5) to the end away from the main mud outlet pipe (5), and the outer diameter of the guide plate (72) gradually increases from the end near the main mud outlet pipe (5) to the end away from the main mud outlet pipe (5), which is used to guide the mud.

3. A hydraulic mud gun with a stable support structure according to claim 1, characterized in that, The power assembly includes: The first hydraulic push rod (201) is fixed to the hydraulic cylinder (2) by a mounting bracket. The telescopic end of the first hydraulic push rod (201) is fixed to the first support frame (202). The first support frame (202) is slidably connected to the main mud outlet pipe (5). The support rods (203) are circumferentially distributed and fixed to the first support frame (202). The support rods (203) correspond one-to-one with the sliding plates (6). The main mud discharge pipe (5) is fixed with circumferentially distributed fixing parts (204). The support rods (203) correspond one-to-one with the fixing parts (204). The fixing parts (204) are slidably connected to the corresponding support rods (203). The support rods (203) are provided with L-shaped rods (205). The circumferentially distributed sliding plates (6) are all fixed with two mating blocks (206). The two mating blocks (206) on the same sliding plate (6) are located on the moving path of the corresponding L-shaped rods (205). Limiting components, corresponding one-to-one with the sliding plates (6), are respectively disposed on the corresponding sliding plates (6) and are used to limit the corresponding connecting rods (7).

4. A hydraulic mud gun with a stable support structure according to claim 3, characterized in that, The limiting component includes a fixed cylinder (301), which is fixedly connected to the corresponding sliding plate (6). The fixed cylinder (301) is slidably connected to a limiting plate (302), which is used to limit the corresponding connecting rod (7). The support rod (203) is fixedly connected to a protruding post (303), which is slidably connected to the corresponding limiting plate (302).

5. A hydraulic mud gun with a stable support structure according to claim 4, characterized in that, It also includes: The nozzle (401) is slidably connected to the main mud outlet pipe (5). The nozzle (401) is located between the main mud outlet pipe (5) and the blocking ring (71), and there is a gap between the nozzle (401) and the blocking ring (71). The nozzle (401) is fixedly connected to the circumferentially distributed sliding plates (6). The circumferentially distributed connecting rods (7) are slidably connected to the nozzle (401) and pass through the nozzle (401). The secondary mud outlets (402) are distributed in a circular pattern and are all located on the nozzle (401).

6. A hydraulic mud gun with a stable support structure according to claim 5, characterized in that, The inner diameter of the nozzle (401) on the side away from the main mud outlet pipe (5) gradually decreases from the end near the blocking ring (71) to the end away from the blocking ring (71), and the inner diameter of the auxiliary mud outlet (402) gradually increases from the side near the central axis of the nozzle (401) to the side away from the central axis.

7. A hydraulic mud gun with a stable support structure according to claim 6, characterized in that, A corrugated strip is provided on the side of the nozzle (401) away from the main mud discharge pipe (5).

8. A hydraulic mud gun with a stable support structure according to claim 3, characterized in that, It also includes: The second hydraulic push rod (501) is fixed to the hydraulic cylinder (2) by a mounting bracket, and the telescopic end of the second hydraulic push rod (501) is fixed to the second support bracket (502). A protective cover (503) is disposed on the second support frame (502), and the circumferentially distributed fixing members (204) are all used to guide the protective cover (503). There is a gap between the protective cover (503) and the main mud discharge pipe (5). A swing assembly is disposed on the second support frame (502) for driving the protective cover (503) to swing.

9. A hydraulic mud gun with a stable support structure according to claim 8, characterized in that, The protective cover (503) has an annular inclined surface inside. The diameter of the annular inclined surface of the protective cover (503) gradually increases from the side close to the mud storage cylinder (3) to the side away from the mud storage cylinder (3). The protective cover (503) is used to squeeze the blast furnace outside the blast furnace.

10. A hydraulic mud gun with a stable support structure according to claim 9, characterized in that, The swing assembly includes: The first hinged connecting rods (504) are two in a centrally symmetrical distribution and are both fixed to the second support frame (502); The second hinge link (505) has two centrally symmetrically distributed links, both fixed to the cover (503). The line connecting the two first hinge links (504) is perpendicular to the line connecting the two second hinge links (505). A support ring (506) is fixedly connected between the two first hinge links (504) and the two second hinge links (505). The two first hinge links (504), the two second hinge links (505) and the support ring (506) are used together to drive the cover (503) to swing.

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