Opening plugging auxiliary device used when gun head of blast furnace mud gun machine is damaged

Abstract

The utility model discloses a plugging auxiliary device used when a gun head of a blast furnace gun machine is damaged. The plugging auxiliary device comprises a plane protection plate, a sleeve I and a sleeve II, the sleeve I and the sleeve II are of hollow cylinder structures which are horizontally and transversely arranged, the interiors of the sleeve I and the sleeve II are matched with a gun head of a clay gun machine, and the left and right end faces are open; the sleeve I and the sleeve II are coaxially attached left and right, are integrally formed and are coaxially connected to a gun head of the clay gun machine in a sleeving manner from the side of the sleeve II; a circular-ring-shaped plane protection plate is coaxially attached to the left end face of the sleeve I in an aligned mode, the outer diameter of the plane protection plate is consistent with the outer diameter of the sleeve I, and the inner diameter of the plane protection plate is consistent with the inner diameter of a gun head of the clay gun machine. The right side face of the plane protection plate abuts against and is attached to the front end face of the gun head of the clay gun machine, and the iron notch is plugged through the gun head of the clay gun machine through auxiliary matching of the plane protection plate and the sleeve I. According to the utility model, the phenomenon of wind-reducing plugging or damping-down plugging caused by burning loss of the cannon head can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace production technical field, concretely relates to a kind of plugging auxiliary devices for blast furnace mud gun machine cannon head damage. BACKGROUND

[0002] Blast furnace mud gun machine is one of the important equipment of blast furnace casthouse, mainly used in the iron mouth of blast furnace is closed after iron tapping end.In the process of blast furnace iron tapping, due to the long-time scouring of high-temperature molten iron to the iron mouth mud sleeve, and the impact of mud gun machine to the iron mouth mud sleeve when closing the iron mouth after each iron tapping end, etc., the mud sleeve is easily damaged, so the high-temperature molten iron in the iron mouth mud sleeve is contacted when the mud gun machine cannon head is damaged during the preparation of closing the iron mouth after iron tapping end, and the cannon head is burned out, resulting in the iron mouth being unable to be closed.

[0003] In the current normal production process, when the iron mouth needs to be closed, the cannon head of the mud gun machine often appears the phenomenon of high-temperature molten iron burning the cannon head, which may cause the iron mouth to be closed with difficulty, but the mud overflowed from the burned part;In severe cases, the burned gap of the cannon head may be large, resulting in the iron mouth being unable to be closed, at which time the blast furnace needs to be greatly reduced in wind and closed, or the blast furnace needs to be closed due to the iron mouth being unable to be closed, which brings a lot of work to the operators;At the same time, it brings great safety hazards and environmental accidents to the operators.Therefore, how to design an auxiliary device to ensure the closing effect when the cannon head is damaged has become a difficult problem to be solved at present. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to provide a plugging auxiliary device for blast furnace mud gun machine cannon head damage, which can avoid the phenomenon of reducing wind and closing the iron mouth or closing the iron mouth due to the burning of the cannon head, reduce the process slow wind accident, save manpower and material resources, reduce the unplanned slow wind rate, improve the economic indicators of the blast furnace, and also reduce the safety hazards of the site workers.

[0005] To solve the above technical problems, the utility model takes the following technical scheme: the utility model discloses a plugging auxiliary device for blast furnace mud gun machine cannon head damage, which is characterized by: a flat protection plate, a sleeve I and a sleeve II; the sleeve I and the sleeve II are both hollow cylindrical structures arranged horizontally and transversely, and their interiors are matched with the cannon head of the mud gun machine, and their left and right end faces are both open; the sleeve I and the sleeve II are coaxially and integrally formed between them, and are coaxially sleeved on the cannon head of the mud gun machine from the side of the sleeve II; a circular flat protection plate is coaxially and integrally arranged on the left end face of the sleeve I, the outer diameter of the flat protection plate is consistent with the outer diameter of the sleeve I, and the inner diameter of the flat protection plate is consistent with the inner diameter of the cannon head of the mud gun machine; the right side face of the flat protection plate is tightly and integrally arranged against the front end face of the cannon head of the mud gun machine, and the cannon head of the mud gun machine is closed to the iron mouth through the auxiliary cooperation of the flat protection plate and the sleeve I.

[0006] Preferably, the inner diameter of the flat protection plate is 150 mm, and its outer diameter is 209 mm, and it is matched with the size of the iron mouth, so that the sleeve I and the sleeve II are coaxially sleeved on the cannon head, and when the right side of the flat protection plate is tightly fitted with the front end surface of the cannon head, the cannon head of the mud gun machine is used to block the iron mouth.

[0007] Preferably, a circular arc transition is coaxially provided on the outer circumferential surface of the flat protection plate near the left end, and the circular arc transition guides the action of inserting the flat protection plate into the iron mouth.

[0008] Preferably, a circular ring-shaped insertion slot is vertically embedded in the left end surface of the sleeve I, and the insertion slot does not extend out of the outer circumferential surface and the inner circumferential surface of the sleeve I; a circular ring-shaped insertion plate is coaxially and fixedly provided on the right side of the flat protection plate relative to the position of the insertion slot, and the insertion plate is matched with the insertion slot, and the insertion of the flat protection plate and the sleeve I is positioned by the cooperation of the insertion plate and the insertion slot.

[0009] Preferably, a plurality of counterbores are uniformly and spaced apart along the circumferential direction of the outer circumferential surface of the sleeve I relative to the position of the insertion slot, and the small diameter end of each counterbore extends along the radial direction of the sleeve I towards the insertion slot and is in communication with the insertion slot; a counter sunk screw matched with the counterbore is coaxially provided in each counterbore; and a threaded hole matched with the counter sunk screw is vertically embedded and penetrates through the outer circumferential surface of the insertion plate relative to the position of each counterbore along the radial direction, so that the flat protection plate and the sleeve I are screw-fixed by the cooperation of the counter sunk screw and the threaded hole.

[0010] Preferably, the depth of the large diameter end of each counterbore ensures that each counter sunk screw does not protrude out of the outer circumferential surface of the sleeve I when the flat protection plate and the sleeve I are screw-fixed by the counter sunk screw, and does not interfere with the action of inserting the sleeve I into the iron mouth.

[0011] Preferably, the length of the sleeve I is 190 mm, and the length ensures the depth of insertion into the iron mouth, thereby ensuring the stability of blocking the iron mouth by the cannon head of the mud gun machine.

[0012] Preferably, the outer diameter of the sleeve II is greater than the outer diameter of the sleeve I, and the inner circumferential surface is an inner tapered surface matched with the cannon head; the right end of the inner tapered surface of the sleeve II is a large diameter end with a diameter greater than the outer diameter of the cannon head, and the right end of the inner tapered surface is provided with a circular arc transition; the left end of the inner tapered surface of the sleeve II is a small diameter end, and the diameter of the small diameter end of the inner tapered surface is consistent with the inner diameter of the sleeve I, thereby guiding the action of coaxially sleeving the sleeve I and the sleeve II on the cannon head by the inner tapered surface of the sleeve II.

[0013] Preferably, vertical screwing resisting bolts are arranged on the outer circumferential surface of the sleeve II at positions between the upper and lower ends, respectively, and the threaded ends of each of the resisting bolts extend to the inside of the sleeve II along the radial direction of the sleeve II and abut against the corresponding position of the outer circumferential surface of the cannon head, thereby ensuring the stability of the sleeve II when being sleeved on the cannon head.

[0014] The utility model discloses the beneficial effects of:

[0015] (1) the utility model discloses can avoid the phenomenon of the reduced wind block or the rest wind block caused by the cannon head burning and losing, reduces the process rest slow wind accident, saves manpower and material resources, reduces the non - scheduled rest wind rate, improves the blast furnace economic index, also reduces the security risk of on - the - spot staff member simultaneously;

[0016] (2) the utility model discloses that the detachable connecting mode is used between the plane protection board and sleeve I, when the plane protection board is damaged, only it can be replaced, thereby saving the cost;

[0017] (3) the utility model discloses the overall design of sleeve I and sleeve II, not only convenient control the insertion depth of the iron mouth block, ensures the block effect, also convenient through the resisting bolt and fix the sleeve II with the cannon head, ensure that the auxiliary device does not occur from the cannon head in the process of blocking the phenomenon;

[0018] (4) the left end of the outer circumferential surface of the plane protection board of the utility model discloses the arc transition design, the cannon head passes through the auxiliary device and inserts the iron mouth, thereby improving the work efficiency;

[0019] (5) the inner circumferential surface of the sleeve II of the utility model discloses the inner taper surface design, convenient for the auxiliary device to be inserted and be sleeved on the cannon head, thereby improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments recorded in the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor. Figure 1 It is a structural schematic view of the auxiliary device for blocking the cannon head of the blast furnace when the blast furnace is damaged.

[0021] Figure 2 It is Figure 1 The enlarged schematic view of part A.

[0022] Wherein, 1-cannon head;2-plane protection board;3-insertion board;4-countersunk screw;5-sleeve I;6-sleeve II;7-resisting bolt. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely through the specific implementation.

[0024] The utility model discloses a mud gun machine cannon head damage is used to the auxiliary device of plugging, including plane protection board 2, sleeve I 5 and sleeve II 6, as Figure 1 、 Figure 2 Illustrated, sleeve I 5 and sleeve II 6 are hollow cylindrical structure of horizontal transverse arrangement, and its inside all are matched with the cannon head 1 of mud gun machine, and ensure that its left and right end face are open type, sleeve I 5 and sleeve II 6 left coaxial heart are set up, and the whole is shaped between two, and from sleeve II 6 side coaxial sleeve is connected on the cannon head 1 of mud gun machine, the left end face coaxial alignment of sleeve I 5 is provided with the circular ring of plane protection board 2, and the outer diameter of plane protection board 2 is consistent with the outer diameter of sleeve I 5, and its inner diameter is consistent with the cannon head 1 inner diameter of mud gun machine, the right side surface of plane protection board 2 is tightly bonded with the cannon head 1 front end surface of mud gun machine, and through the auxiliary cooperation of plane protection board 2 and sleeve I 5, the cannon head 1 of mud gun machine is sealed to the iron mouth.

[0025] As Figure 1 、 Figure 2 Illustrated, the inner diameter of plane protection board 2 is 150mm, and its outer diameter is 209mm, and is matched with the size of iron mouth, and then when sleeve I 5 and sleeve II 6 are coaxially connected on the cannon head 1, and the right side surface of plane protection board 2 is tightly bonded with the front end surface of cannon head 1, the cannon head 1 of mud gun machine is sealed to the iron mouth through mud gun machine, wherein, on the outer circumferential surface of plane protection board 2, coaxially set up arc transition on the left end, and guide the action of plane protection board 2 inserted into the iron mouth through arc transition.

[0026] As Figure 1 、 Figure 2 Illustrated, the left end surface of sleeve I 5 is also coaxially vertically embedded with circular ring-shaped slot, and the slot does not extend out of the outer circumferential surface and the inner circumferential surface of sleeve I 5 respectively, and the right side surface of plane protection board 2 is also coaxially fixed with circular ring-shaped plug 3 relative to the position of the slot, and the plug 3 is matched with the slot, and the clamping of plane protection board 2 and sleeve I 5 is positioned through the cooperation of plug 3 and slot.

[0027] The utility model is also provided with a plurality of counterbores on the outer circumferential surface of sleeve I 5 relative to the position of the slot along the circumferential direction, and the small diameter end of each counterbore extends along the radial direction of sleeve I 5 towards the slot direction and is communicated with the slot respectively, as Figure 1 、 Figure 2As shown in the drawings, a matching countersunk screw 4 is arranged coaxially in each counterbore, and a threaded hole matching the countersunk screw 4 is vertically embedded in the outer circumferential surface of the plug-in plate 3 in the radial direction relative to the position of each counterbore, and then the planar protection plate 2 is screw-fixed with the sleeve I 5 through the cooperation of the countersunk screw 4 and the threaded hole. The depth of the large-diameter end of each counterbore needs to ensure that each countersunk screw 4 does not protrude from the outer circumferential surface of the sleeve I 5 and does not interfere with the action of inserting the sleeve I 5 into the iron notch when the planar protection plate 2 is screw-fixed with the sleeve I 5.

[0028] As shown in the drawings, Figure 1 , Figure 2 The length of the sleeve I 5 is 190 mm, and the length needs to ensure the depth of the insertion into the iron notch, and then ensure the stability of the iron notch blocked by the cannon head 1 of the mud gun machine.

[0029] As shown in the drawings, Figure 1 , Figure 2 The outer diameter of the sleeve II 6 is larger than the outer diameter of the sleeve I 5, and the inner circumferential surface is an inner tapered surface matching the cannon head 1. The large-diameter end of the right end of the inner tapered surface of the sleeve II 6 is larger than the outer diameter of the cannon head 1, and the right end of the inner tapered surface of the sleeve II 6 is provided with a circular arc transition. The left end of the inner tapered surface of the sleeve II 6 is a small-diameter end, and the diameter of the small-diameter end of the inner tapered surface of the sleeve II 6 is consistent with the inner diameter of the sleeve I 5, and then the action of coaxially sleeving the sleeve I 5 and the sleeve II on the cannon head 1 is guided by the inner tapered surface of the sleeve II 6.

[0030] As shown in the drawings, Figure 1 , Figure 2 The sleeve II 6 is further provided with a clamping bolt 7 vertically screwed at the middle position of the upper and lower ends of the outer circumferential surface of the sleeve II 6. The threaded end of each clamping bolt 7 extends to the inside of the sleeve II 6 in the radial direction of the sleeve II 6 and is in tight contact with the corresponding position of the outer circumferential surface of the cannon head 1, thereby ensuring the stability of the sleeve II 6 sleeved on the cannon head 1.

[0031] The working principle of the utility model:

[0032] In the process of blocking the iron notch after the blast furnace tapping is completed, when the cannon head 1 is burned and blocked, the operator can immediately retreat to the original position, and then coaxially sleeve the auxiliary device on the burned cannon head 1 through the guidance of the sleeve II 6, ensure that the front end surface of the cannon head 1 is in tight contact with the right side surface of the planar protection plate 2, and then immediately fix the sleeve II 6 and the cannon head 1 through the clamping bolt 7, and clean the iron notch, at this time, the cannon head 1 can be re-blocked on the iron notch with the assistance of the planar protection plate 2 and the sleeve I 5, so that the phenomenon of wind reduction blocking or wind stopping blocking caused by the burning of the cannon head 1 occurs;

[0033] Since the auxiliary device is mainly impacted by the flat protection plate 2, when the flat protection plate 2 is damaged, the flat protection plate 2 can be separated from the sleeve I 5 after the sunken head screw 4 is disassembled, then a new flat protection plate 2 is replaced, and the auxiliary use can be continued.

[0034] The utility model discloses the beneficial effect:

[0035] (1) the utility model discloses can avoid the phenomenon of the reduction of the wind block or the rest of the wind block caused by the burning of the cannon head 1, reduces the process rest slow wind accident, saves manpower and material resources, reduces the non - scheduled rest of the wind rate, improves the blast furnace economic index, also reduces the safety hidden danger of the on - the - scene staff member simultaneously;

[0036] (2) the utility model discloses that the flat protection plate 2 and sleeve I 5 adopt detachable connection mode between, convenient for when the flat protection plate 2 only is replaced to damage, thereby saving the cost;

[0037] (3) the utility model discloses the integral type design of sleeve I 5 and sleeve II 6, not only convenient for control the insertion depth of the iron mouth block, ensures the block effect, also convenient for through the sleeve II 6 with cannon head 1 by the abutting bolt 7 and abut fixed, ensure that the auxiliary device does not occur from cannon head 1 in the process of blocking the phenomenon of separation;

[0038] (4) the utility model discloses that the left end of the outer circumferential surface of flat protection plate 2 adopts the circular arc transition design, convenient for cannon head 1 through the auxiliary device and inserts the iron mouth, thereby improving the work efficiency;

[0039] (5) the utility model discloses that the inner circumferential surface of sleeve II 6 adopts the inner taper surface design, convenient for the auxiliary device and inserts the sleeve in cannon head 1, thereby improving the work efficiency.

[0040] The above-described embodiments are merely preferred embodiments of the utility model for description, and do not limit the design concept and range of the utility model, and various modifications and improvements of the technical scheme of the utility model made by ordinary engineering technicians in the art without departing from the design concept of the utility model shall fall within the protection range of the utility model, and the technical content of the utility model claimed has been all recorded in the technical requirements.

Claims

1. A plugging auxiliary device for use when the blast furnace mud gun head is damaged, characterized in that: Including the plane protection board, sleeve I and sleeve II, the sleeve I and sleeve II are hollow cylindrical structure which are horizontally transversely arranged, and its inside is matched with the cannon head of the mud gun machine, and ensures that its left and right end face is open type, the sleeve I and sleeve II left coaxial center fit setting, and the whole is formed between the two, and is coaxially sleeved on the cannon head of the mud gun machine from the sleeve II side, the ring-shaped plane protection board is coaxially aligned and attached to the left end face of the sleeve I, the outer diameter of the plane protection board is consistent with the outer diameter of the sleeve I, and the inner diameter is consistent with the inner diameter of the cannon head of the mud gun machine, the right side of the plane protection board is tightly attached to the front end face of the cannon head of the mud gun machine, and the cannon head of the mud gun machine is blocked by the auxiliary cooperation of the plane protection board and the sleeve I.

2. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 1, wherein: The inner diameter of the plane protection board is 150mm, and the outer diameter is 209mm, which is matched with the size of the iron mouth, so that the sleeve I and sleeve II are coaxially sleeved on the cannon head, and the right side of the plane protection board is tightly attached to the front end face of the cannon head, and the cannon head of the mud gun machine is blocked by the mud gun machine.

3. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 2, wherein: The outer circumferential surface of the plane protection board is coaxially provided with a circular arc transition near the left end, and the circular arc transition guides the action of the plane protection board inserted into the iron mouth.

4. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 1, wherein: A circular ring-shaped insertion slot is vertically embedded in the left end face of the sleeve I, and the insertion slot does not extend out of the outer circumferential surface and the inner circumferential surface of the sleeve I; a circular ring-shaped insertion plate is coaxially fixed on the right side of the plane protection board relative to the position of the insertion slot, and the insertion plate is matched with the insertion slot, and the insertion plate and the insertion slot are matched to position the clamping of the plane protection board and the sleeve I.

5. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 4, wherein: A plurality of counterbores are uniformly and spaced apart along the circumferential direction of the outer circumferential surface of the sleeve I relative to the position of the insertion slot, and the small diameter end of each counterbore extends along the radial direction of the sleeve I towards the insertion slot and is in communication with the insertion slot; a counter sunk screw matched with the counterbore is coaxially arranged in each counterbore, and a threaded hole matched with the counter sunk screw is vertically embedded and penetrates through the outer circumferential surface of the insertion plate relative to the position of each counterbore along the radial direction, so that the plane protection board and the sleeve I are fixed by screwing through the cooperation of the counter sunk screw and the threaded hole.

6. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 5, wherein: The depth of the large diameter end of each counterbore needs to ensure that each counter sunk screw does not protrude out of the outer circumferential surface of the sleeve I when the plane protection board and the sleeve I are fixed by screwing through the counter sunk screw, and does not interfere with the action of the sleeve I inserted into the iron mouth.

7. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 1, wherein: The length of the sleeve I is 190mm, and the length needs to ensure the depth of the insertion into the iron mouth, so as to ensure the stability of the blocking of the iron mouth by the cannon head of the mud gun machine.

8. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 1, wherein: The outer diameter of the sleeve II is larger than that of the sleeve I, and the inner circumferential surface is an inner tapered surface matched with the cannon head; the right end of the inner tapered surface of the sleeve II is a large-diameter end with a diameter larger than that of the cannon head, and a circular arc transition is arranged at the end of the right end of the inner tapered surface, the left end of the inner tapered surface of the sleeve II is a small-diameter end, and the diameter of the small-diameter end of the inner tapered surface is consistent with the inner diameter of the sleeve I, thereby guiding the action of coaxially sleeving the sleeve I and the sleeve II on the cannon head through the inner tapered surface of the sleeve II.

9. A device for assisting in plugging a damaged spout of a high pressure mud gun as claimed in claim 8, wherein: A resisting bolt is vertically and screw-connected at the middle position of the outer circumferential surface of the sleeve II, and the threaded end of each resisting bolt extends to the inside of the sleeve II along the radial direction of the sleeve II and is in resisting contact with the corresponding position of the outer circumferential surface of the cannon head, thereby ensuring the stability of the sleeve II sleeved on the cannon head.

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