阅读说明：本技术 高炉炉缸浇注用模具工装及浇注方法 (Mold tool for pouring blast furnace hearth and pouring method ) 是由 马小青 孙赛阳 徐吉龙 杜尚斌 喇校帅 于 2021-09-06 设计创作，主要内容包括：本发明提供一种高炉炉缸浇注用模具工装及浇注方法,该高炉炉缸浇注用模具工装包括第一模具,所述第一模具用以浇注形成第一浇注体；第二模具,所述第二模具可拆卸的设于所述第一模具的内部顶侧,用以在所述第一浇注体的顶侧形成凹槽。本发明通过可拆卸的将第二模具设置于第一模具的内部顶侧,使第一浇注体的顶侧形成凹槽,提高凹槽的成型效率,同时增强第一浇注体和第二浇注体之间的连接性能,增强整体的结构强度,提高施工效率和质量。(The invention provides a die tool for casting a blast furnace hearth and a casting method, wherein the die tool for casting the blast furnace hearth comprises a first die, and the first die is used for casting to form a first casting body; and the second mold is detachably arranged on the inner top side of the first mold and is used for forming a groove on the top side of the first casting body. According to the invention, the second mold is detachably arranged on the top side in the first mold, so that the top side of the first casting body is provided with the groove, the molding efficiency of the groove is improved, the connection performance between the first casting body and the second casting body is enhanced, the integral structural strength is enhanced, and the construction efficiency and quality are improved.)

1. The utility model provides a mould frock is used in pouring of blast furnace crucible which characterized in that includes:

the first die is used for casting to form a first casting body;

and the second mold is detachably arranged on the inner top side of the first mold and is used for forming a groove on the top side of the first casting body.

2. The mold tooling for pouring the blast furnace hearth according to claim 1, wherein the second mold comprises a bottom plate, a first side plate and a second side plate, and the bottom plate, the first side plate and the second side plate enclose a groove structure.

3. The mold tooling for casting the blast furnace hearth according to claim 2, wherein the first side plate is connected with the bottom plate through a first hinge, and the second side plate is connected with the bottom plate through a second hinge.

4. The mold tooling for casting the blast furnace hearth according to claim 3, wherein an adjusting piece is arranged between the first side plate and the second side plate, and the adjusting piece is used for adjusting the distance between the top side of the first side plate and the top side of the second side plate.

5. The mold tooling for pouring the blast furnace hearth according to claim 2, wherein a plurality of first connecting pieces are arranged on the top side of the first side plate along the length direction of the first side plate, the first ends of the first connecting pieces are connected with the top side of the first side plate, and the second ends of the first connecting pieces are detachably connected with the top side of the first mold.

6. The mold tooling for pouring the blast furnace hearth according to claim 2, wherein a plurality of second connecting members are arranged on the top side of the second side plate along the length direction of the second side plate, the first ends of the second connecting members are connected with the top side of the second side plate, and the second ends of the second connecting members are detachably connected with the top side of the first mold.

7. The tool for the casting mold of the blast furnace hearth according to any one of claims 1 to 6, wherein a mold release agent is coated on an outer side of the second mold.

8. The mold tooling for casting the blast furnace hearth according to any one of claims 1 to 6, further comprising a third mold, wherein the third mold is in butt fit with the first mold and is used for casting a second casting body matched with the first casting body.

9. The pouring method based on the die tool for pouring the blast furnace hearth according to any one of claims 1 to 8, characterized by comprising the following steps of:

pouring hearth castable into the first mold to a set distance from the top side of the first mold;

assembling the second mold on the inner top side of the first mold, and continuously pouring hearth castable until a first pouring body is formed;

and after the first casting body is hardened, the second mold is detached from the first mold, wherein a groove is formed in the top side of the first casting body.

10. The method of casting a blast furnace hearth according to claim 9, further comprising the steps of:

and assembling a third mold on the top side of the first mold in a butt joint mode, pouring hearth castable into the third mold until a second pouring body is formed, and removing the first mold and the third mold after the second pouring body is hardened and combined with the first pouring body into a whole.

Technical Field

The invention relates to the technical field of blast furnace hearth pouring, in particular to a mold tool for blast furnace hearth pouring and a pouring method.

Background

At present, the blast furnace hearth pouring project is limited by the problems of the flowing property of the pouring material and the size of the die, only the split die pouring can be carried out, and the pouring of the next die is carried out after the pouring material of the previous die is hardened, so that a gap exists on the contact surface between the two dies, the integral strength of the ceramic cup is reduced, and the hidden trouble of air leakage is left.

In order to solve the problem, the method adopted at present is to carve a groove on the surface of a casting body, polish the rough surface of the surface by adopting tools such as an angle grinder and the like, form shallow dents, be difficult to form an effective geometric structure and be incapable of enhancing the connection of the casting material between two dies.

Furthermore, because the dents are shallow, the change of the gaps is small, and the blow-by of the blast furnace is easily caused in the process of blowing in the furnace for production after the casting of the hearth is finished, so that the local temperature is increased, and the normal operation of the blast furnace is influenced; moreover, the high temperature points can also reduce the service life of the refractory material, reduce the pouring quality and increase the consumption of the refractory material; if the deeper groove of carving paint is because the extrusion problem of castables is difficult to take out the support mould, influence the construction progress.

Disclosure of Invention

The invention provides a die tool for pouring a blast furnace hearth and a pouring method, which are used for solving the defects of poor strength and low construction efficiency of the whole poured blast furnace hearth in the prior art, improving the strength and quality of the whole poured blast furnace hearth, improving the construction efficiency and shortening the construction period.

The invention provides a die tool for pouring a blast furnace hearth, which comprises:

the first die is used for casting to form a first casting body;

and the second mold is detachably arranged on the inner top side of the first mold and is used for forming a groove on the top side of the first casting body.

According to the die tool for pouring the blast furnace hearth, the second die comprises a bottom plate, a first side plate and a second side plate, and the bottom plate, the first side plate and the second side plate are enclosed to form a groove structure.

According to the die tool for pouring the blast furnace hearth, the first side plate is connected with the bottom plate through the first hinge, and the second side plate is connected with the bottom plate through the second hinge.

According to the die tool for pouring the blast furnace hearth, provided by the invention, an adjusting piece is arranged between the first side plate and the second side plate and is used for adjusting the distance between the top side of the first side plate and the top side of the second side plate.

According to the die tool for pouring the blast furnace hearth, provided by the invention, a plurality of first connecting pieces are arranged on the top side of the first side plate along the length direction of the first side plate, the first ends of the first connecting pieces are connected with the top side of the first side plate, and the second ends of the first connecting pieces are detachably connected with the top side of the first die.

According to the die tool for pouring the blast furnace hearth, provided by the invention, a plurality of second connecting pieces are arranged on the top side of the second side plate along the length direction of the second side plate, the first ends of the second connecting pieces are connected with the top side of the second side plate, and the second ends of the second connecting pieces are detachably connected with the top side of the first die.

According to the die tool for pouring the blast furnace hearth, the release agent is coated on the outer side of the second die.

The die tool for pouring the blast furnace hearth further comprises a third die, wherein the third die is in butt joint fit with the first die and is used for pouring to form a second pouring body matched with the first pouring body.

The invention also provides a pouring method of the blast furnace hearth, which comprises the following steps:

pouring hearth castable into the first mold to a set distance from the top side of the first mold;

assembling the second mold on the inner top side of the first mold, and continuously pouring hearth castable until a first pouring body is formed;

and after the first casting body is hardened, the second mold is detached from the first mold, wherein a groove is formed in the top side of the first casting body.

The pouring method of the blast furnace hearth provided by the invention further comprises the following steps:

and assembling a third mold on the top side of the first mold in a butt joint mode, pouring hearth castable into the third mold until a second pouring body is formed, and removing the first mold and the third mold after the second pouring body is hardened and combined with the first pouring body into a whole.

The invention provides a die tool for casting a blast furnace hearth and a casting method, comprising a first die, a second die and a third die, wherein the first die is used for casting to form a first casting body; the second mould, second mould detachable locates the inside top side of first mould for the top side of first casting body forms the recess, sets up the second mould in the inside top side of first mould through detachable, makes the top side of first casting body form the recess, improves the shaping efficiency of recess, strengthens the connectivity between first casting body and the second casting body simultaneously, strengthens holistic structural strength, improves efficiency of construction and quality.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an assembly structure of a first mold and a second mold in the mold tool for casting a blast furnace hearth provided by the invention;

FIG. 2 is a schematic structural view of a second mold in the mold tool for casting the blast furnace hearth, provided by the invention;

FIG. 3 is a top view of a second mold in the mold tool for casting a blast furnace hearth according to the present invention;

FIG. 4 is a left side view of a second mold in the mold tool for casting a blast furnace hearth according to the present invention;

FIG. 5 is a schematic structural diagram of a first casting body cast by the mold tool for blast furnace hearth casting provided by the invention;

reference numerals:

100: a first mold; 200: a second mold; 210: a base plate;

220: a first side plate; 230: a second side plate; 240: an adjustment member;

250: a first connecting member; 251: mounting holes; 300: a first casting body;

310: and (4) a groove.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The following describes a mold tooling for pouring a blast furnace hearth according to the present invention with reference to fig. 1 to 5, including:

a first mold 100, the first mold 100 being used for casting a first casting body 300;

and a second mold 200, wherein the second mold 200 is detachably installed on the inner top side of the first mold 100 to form a groove 310 on the top side of the first casting body 300. It will be appreciated that first mold 100 is adapted to the shape profile of first casting 300 for casting to form first casting 300. The second mold 200 is located in the first mold 100, is disposed at a top side of the first mold 100, and is detachably assembled. That is, the second mold 200 is detachably inserted into the top side of the first mold 100 to form the groove 310 on the top side of the cast first casting 300, and to form a high-strength connection assembly between the top side of the first casting 300 and the bottom side of the corresponding second casting, so as to form the whole blast furnace hearth and enhance the integrity.

It is worth noting that the depth of the groove 310 corresponds to the height of the second mold 200, and compared with the existing grinding mode, the forming efficiency of the groove 310 is high, the quality of the groove 310 is high, the air tightness of the whole assembly is improved, and the safe operation of the blast furnace is ensured.

It should be noted that the width of the first mold 100 is greater than the width of the second mold 200, so that a gap exists between the inner wall of the first mold 100 and the second mold 200, that is, the hearth castable is poured between the first mold 100 and the second mold 200 to form the side wall of the groove 310.

According to the mold tool for pouring the blast furnace hearth provided by the invention, the second mold 200 comprises a bottom plate 210, a first side plate 220 and a second side plate 230, and the bottom plate 210, the first side plate 220 and the second side plate 230 enclose a groove 310 structure. It can be understood that the second mold 200 specifically includes a bottom plate 210, a first side plate 220 and a second side plate 230, the first side plate 220 is disposed on one side of the bottom plate 210, and the second side plate 230 is disposed on the other side of the bottom plate 210, that is, the first side plate 220 and the second side plate 230 are oppositely disposed. Specifically, the bottom side of the first side plate 220 is connected to one side of the bottom plate 210, the bottom side of the second side plate 230 is connected to the other side of the bottom plate 210, and the length, height and thickness of the first side plate 220 and the second side plate 230 are the same.

It should be noted that, after the second mold 200 is assembled on the top side of the first mold 100, the top side of the second mold 200 is flush with the top side of the first mold 100, and the top side of the second mold 200 may be set higher than the top side of the first mold 100, so as to ensure the casting of the groove 310.

According to the die tool for pouring the blast furnace hearth, the first side plate 220 is connected with the bottom plate 210 through the first hinge, and the second side plate 230 is connected with the bottom plate 210 through the second hinge. It can be understood that the first side plate 220 is connected to one side of the bottom plate 210 by a first hinge, so as to realize the 180-degree opening and closing operation of the first side plate 220. The second side plate 230 is connected to the other side of the base plate 210 by a second hinge, so that the 180-degree opening and closing operation of the second side plate 230 is achieved. That is, by adjusting the respective opening and closing degrees of the first side plate 220 and the second side plate 230, the adjustment of the gap between the side walls of the first mold 100 of the corresponding side of the first side plate 220 and the second side plate 230, that is, the adjustment of the shape of the groove 310, is realized.

It should be noted that the first hinge and the second hinge are both disposed on the inner side of the first mold 100, so as to prevent the first hinge and the second hinge from affecting the molding quality of the groove 310.

According to the die tooling for pouring the blast furnace hearth, provided by the invention, the adjusting piece 240 is arranged between the first side plate 220 and the second side plate 230, and the adjusting piece 240 is used for adjusting the distance between the top side of the first side plate 220 and the top side of the second side plate 230. It can be understood that the adjusting piece 240 is disposed between the first side plate 220 and the second side plate 230 to support the first side plate 220 and the second side plate 230, so as to prevent the first side plate 220 and the second side plate 230 from moving during the pouring process; meanwhile, the distance between the top sides of the first and second side plates 220 and 230 is achieved by the adjuster 240, thereby achieving adjustment of the shape of the groove 310.

In one embodiment, the adjusting member 240 includes a first loop bar, a sleeve and a second loop bar, wherein a first end of the first loop bar is connected to the first side plate 220, a first end of the second loop bar is connected to the second side plate 230, a second end of the first loop bar is disposed through the first end of the sleeve, and a second end of the second loop bar is disposed through the second end of the sleeve. Wherein, be equipped with the internal thread in the sleeve, the second end of first loop bar is equipped with the external screw thread, and the second end of second loop bar is equipped with the external screw thread, and all with the internal thread adaptation, through rotatory sleeve, realize the length of precession or screw-out in the sleeve to the second end of first loop bar and the second end of second loop bar, and then realize reducing or enlarge the interval between first curb plate 220 and the second curb plate 230, accomplish the adjustment.

In one embodiment, the adjusting member 240 is a threaded rod, the first side plate 220 is provided with a first through hole, the second side plate 230 is provided with a second through hole, and two ends of the threaded rod are respectively penetrated through the first through hole and the second through hole to ensure the detachable assembly of the threaded rod. The first end of threaded rod is equipped with first set nut and first lock nut, and first set nut is located the inboard of first curb plate 220, and first lock nut is located the outside of first curb plate 220. The second end of the threaded rod is provided with a second positioning nut and a second locking nut, the second positioning nut is located on the inner side of the second side plate 230, and the second locking nut is located on the outer side of the second side plate 230.

Further, the first side plate 220 and the second side plate 230 are positioned at the inner side positions by the first positioning nut and the second positioning nut, and the first side plate 220 and the second side plate 230 are locked by the first locking nut and the second locking nut, so that the first side plate 220 and the second side plate 230 are prevented from moving in the pouring process.

It should be noted that, in order to meet the size requirements of different grooves 310, threaded rods with different lengths are set, and during the casting process, the threaded rods with adaptive sizes are selected to perform limit support on the first side plate 220 and the second side plate 230.

According to the mold tool for pouring the blast furnace hearth provided by the invention, the top side of the first side plate 220 is provided with a plurality of first connecting pieces 250 along the length direction of the first side plate 220, the first ends of the first connecting pieces 250 are connected with the top side of the first side plate 220, and the second ends of the first connecting pieces 250 are detachably connected with the top side of the first mold 100. It can be understood that a plurality of first connectors 250 are disposed on the top side of the first side plate 220, and the plurality of first connectors 250 are uniformly disposed along the length direction of the first side plate 220. The first end of the first connecting piece 250 is connected with the top side of the first side plate 220, the second end of the first connecting piece 250 is detachably connected with the top side of the first mold 100, so that the second mold 200 and the first mold 100 are relatively fixed, the second mold 200 is prevented from moving relative to the first mold 100 in the pouring process, the pouring quality is guaranteed, and meanwhile, after pouring is completed, the second mold 200 is convenient to detach from the first mold 100.

In one embodiment, the second end of the first connecting member 250 is provided with a mounting hole 251, and a fastening pin is inserted into the mounting hole 251 to detachably connect the second end of the first connecting member 250 and the top side of the first mold 100, so as to ensure that the second mold 200 and the first mold 100 are relatively fixed.

According to the mold tooling for pouring the blast furnace hearth provided by the invention, a plurality of second connecting pieces are arranged on the top side of the second side plate 230 along the length direction of the second side plate 230, the first ends of the second connecting pieces are connected with the top side of the second side plate 230, and the second ends of the second connecting pieces are detachably connected with the top side of the first mold 100. It is understood that the top side of the second side plate 230 is provided with a plurality of second connection members, which are uniformly arranged along the length direction of the second side plate 230. The first end of the second connecting piece is fixedly connected with the top side of the second side plate 230, the second end of the second connecting piece is detachably connected with the top side of the first mold 100, so that the second mold 200 and the first mold 100 are relatively fixed, the second mold 200 is prevented from moving relative to the first mold 100 in the pouring process, the pouring quality is ensured, and meanwhile, after the pouring is finished, the second mold 200 is convenient to detach from the first mold 100.

In one embodiment, the second end of the second connecting member is provided with a mounting hole 251, and a fastening pin is inserted into the mounting hole 251, so as to detachably connect the second end of the second connecting member to the top side of the first mold 100, and ensure that the second mold 200 is fixed relative to the first mold 100.

It should be noted that a first connector 250 may be disposed on the first side plate 220 and/or a second connector may be disposed on the second side plate 230 to ensure that the second mold 200 is fixed relative to the first mold 100 during the casting process; after the pouring is finished, the second mold 200 is convenient to remove.

According to the die tool for pouring the blast furnace hearth, the release agent is coated on the outer side of the second die 200. It will be appreciated that the outside of the second mold 200 is coated with a release agent to facilitate the release of the second mold 200 from the recess 310 of the first casting 300 after casting.

The die tool for pouring the blast furnace hearth further comprises a third die, wherein the third die is in butt joint fit with the first die 100 and is used for pouring to form a second pouring body matched with the first pouring body 300. It can be understood that the third mold is vertically symmetrical to the first mold 100, and the bottom side of the third mold can be in butt fit with the top side of the first mold 100, so as to realize the pouring of the third mold and complete the molding of the second poured body. That is, after the second mold 200 is removed, a third mold is butt-fitted to the top side of the first mold 100, and casting is continued so that the second casting and the first casting 300 form the blast furnace hearth as a whole.

The following describes a method for casting a blast furnace hearth according to the present invention, and the method for casting a blast furnace hearth described below and the mold tool for casting a blast furnace hearth described above may be referred to in correspondence with each other.

The invention also provides a pouring method of the blast furnace hearth, which comprises the following steps:

pouring hearth castable into the first mold 100 to a set distance from the top side of the first mold 100;

assembling the second mold 200 on the inner top side of the first mold 100, and continuing to cast hearth casting material until a first casting body 300 is formed;

after the first casting 300 has hardened, the second mold 200 is removed from the first mold 100, wherein a recess 310 is formed in the top side of the first casting 300.

The pouring method of the blast furnace hearth provided by the invention further comprises the following steps:

and (3) assembling a third mold on the top side of the first mold 100 in a butt joint manner, pouring hearth casting materials into the third mold until a second casting body is formed, and removing the first mold 100 and the third mold after the second casting body is hardened and integrated with the first casting body 300.

The embodiment of the invention provides a pouring method of a blast furnace hearth, which comprises the following steps:

pouring hearth castable into the first mold 100 to a set distance from the top side of the first mold 100, in the embodiment, the set distance is 100mm, and pouring is stopped;

adjusting the opening of the second mold 200, in this embodiment, the opening width is 8mm, wherein the lengths of the first side plate 220 and the second side plate 230 are both 1000mm, the height is 10mm, the thickness is 2.5mm, the length of the bottom plate 210 is 1000mm, the width is 10mm, and the thickness is 2.5mm, and the top side opening of the second mold 200 is adjusted to 8mm by the adjusting piece 240;

then, the second mold 200 is assembled on the top side of the first mold 100 through the first connecting piece 250 and/or the second connecting piece, and hearth casting material is continuously poured into the first mold 100 to the top side of the first mold 100, so that the first casting body 300 is cast;

after the first casting body 300 is hardened, the second mold 200 is removed by detaching the first connector 250 and/or the second connector, and a groove 310 is formed on the top side of the first casting body 300;

assembling a third mold on the top side of the first mold 100, pouring hearth casting materials into the third mold until a second casting body is formed, wherein a protrusion matched with the groove 310 on the top side of the first casting body 300 in an alignment manner is formed on the bottom side of the second casting body, the second casting body is hardened and is combined with the first casting body 300 into a whole, the first mold 100 and the third mold are removed, the integrity of the formed blast furnace hearth is strong, the connection performance between the first casting body 300 and the second casting body is high, and in the blast furnace operation process, the construction gap between the first casting body 300 and the second casting body is eliminated by utilizing the expansion of the casting materials, so that the possibility of air blowby is reduced, and the operation safety is ensured.

The invention provides a die tool for casting a blast furnace hearth and a casting method, comprising a first die, a second die and a third die, wherein the first die is used for casting to form a first casting body; the second mould, the inside top side of first mould is located to second mould detachable for top side formation recess at first pouring body sets up the second mould in the inside top side of first mould through detachable, makes the top side formation recess of first pouring body, improves the shaping efficiency of recess, strengthens the connection performance between first pouring body and the second pouring body simultaneously, strengthens holistic structural strength, improves efficiency of construction and quality.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.