CN212451481U - Checker brick with gas channel - Google Patents
Checker brick with gas channel Download PDFInfo
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- CN212451481U CN212451481U CN202022168430.8U CN202022168430U CN212451481U CN 212451481 U CN212451481 U CN 212451481U CN 202022168430 U CN202022168430 U CN 202022168430U CN 212451481 U CN212451481 U CN 212451481U
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Abstract
The utility model provides a checker brick with gas passage relates to heat accumulation formula hot-blast furnace technical field, and this checker brick with gas passage has the brick body, has seted up a plurality of first check holes on the brick body, and each first check hole sets up and runs through two terminal surfaces of the relative setting of the brick body along the axial of the brick body, offers the recess and many water conservancy diversion recesses that converge that are used for the air current to exchange on at least terminal surface of the brick body, and the one end of each water conservancy diversion recess is linked together with the recess that converges. The utility model provides a checker brick with gas passage can be better the voltage-sharing flow equalizes, improves the whole through-hole rate and the heat transfer efficiency of heat accumulator.
Description
Technical Field
The utility model relates to a heat accumulation formula hot-blast furnace technical field, concretely relates to checker brick that hot-blast furnace was used, in particular to checker brick with gas passage.
Background
The hot blast stove generally adopts checker bricks as heat storage carriers to provide hot blast with the temperature of more than 1200 ℃ for blast furnace production. With the progress of the gas purification technology, the dust content of the gas used for combustion of the hot blast stove is gradually reduced, and favorable conditions are provided for reducing the aperture of the checker bricks. Thus, small-bore thirty-seven hole checker bricks are increasingly used in hot blast stoves.
However, such conventional small-aperture checker bricks, in particular thirty-seven-aperture checker bricks with small apertures, have major drawbacks:
1. due to masonry reasons, staggering is easily generated at the butt joint of the grid holes of two adjacent layers of checker bricks, so that the through hole rate of the heat accumulator is reduced, and the pressure loss of gas flowing through the heat accumulator is increased;
2. along with the prolonging of the service time, the phenomena of slag formation, peeling and hole blocking inevitably exist in the grid holes of part of the grid bricks, the through hole rate of the heat accumulator is further reduced, and the resistance loss of gas flowing through the heat accumulator is increased; finally, the heat transfer efficiency of the heat accumulator is reduced, and the temperature of hot air is reduced;
3. the traditional latticed hole butt-joint masonry mode cannot change the result of low utilization rate of checker bricks caused by uneven airflow distribution on the cross section of the heat accumulator.
In view of the above, the present inventors have designed a checker brick having gas passages through trial and error based on production and design experiences in the field and related fields for many years, in order to solve the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a checker brick with gas passage, the voltage-sharing that can be better flow equalizes, improves the whole through-hole rate and the heat transfer efficiency of heat accumulator.
In order to achieve the above object, the utility model provides a checker brick with gas passage has the brick body, wherein, a plurality of first check holes have been seted up on the brick body, each first check hole is followed the axial setting of the brick body is run through two terminal surfaces of the relative setting of the brick body at least one of the brick body set up the recess and many water conservancy diversion recesses that converge that are used for the air current to exchange on the terminal surface, each the one end of water conservancy diversion recess with the recess that converges is linked together.
The checker brick with gas passages as described above, wherein the plurality of guide grooves are provided in one-to-one correspondence with the respective side walls of the brick body, and the other end of each guide groove penetrates through the corresponding side wall.
The checker brick with gas passages as described above, wherein the other end of each guide groove penetrates to a midpoint of a side length of the corresponding side wall.
Checker brick with gas passages as described above, wherein said confluence groove is located at the center of said end faces.
The checker brick with gas passages as described above, wherein the confluence groove is a circular groove or a regular polygonal groove.
The checker brick with the gas channel is characterized in that the brick body is a cylindrical body with an end face in a regular hexagon shape, a confluence groove and six flow guide grooves are formed in the end face, the confluence groove is formed in the center of the end face, the flow guide grooves are uniformly distributed along the circumferential direction of the confluence groove, one end of each flow guide groove is communicated with the confluence groove, and the other end of each flow guide groove penetrates through the center of the side length of the regular hexagon.
The checker brick with gas passages as described above, wherein the flow converging groove and the plurality of flow guiding grooves are formed on both of the end faces of the brick body.
The checker brick having gas passages as described above, wherein a depth of the confluence groove is the same as a depth of the diversion groove.
The checker brick with gas passages as described above, wherein the first cells are circular holes, the width of the flow guide grooves is B, the inner diameter of the first cells is d, and the distance between two adjacent first cells is L, then d/2< B < L.
The checker brick with gas passages as described above, wherein the confluence groove is a circular groove, and the radius of the confluence groove is r, and L is greater than or equal to r and less than or equal to 2L.
Compared with the prior art, the utility model has the following characteristics and advantages:
the utility model provides an offer on at least one terminal surface of its brick body of checker brick with gas passage and converge recess and many water conservancy diversion recesses, it is as an organic whole with many water conservancy diversion groove connection through the recess that converges, guarantee that each water conservancy diversion recess on the same terminal surface all communicates each other, the heat exchange efficiency of its terminal surface department air current of monolithic checker brick has been accelerateed, monolithic checker brick voltage-sharing flow equalizing effect has been improved, can improve the voltage-sharing flow equalizing effect of the little checker brick (for example thirty-seven hole checker brick) of aperture and terminal surface area big very much of check hole.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.
Fig. 1 is a top view of a checker brick according to the present invention;
fig. 2 is a cross-sectional view of a checker brick according to an embodiment of the present invention;
fig. 3 is a schematic view of an embodiment of the present invention in which upper and lower layers of checker bricks form gas passages;
fig. 4 is a cross-sectional view of a checker brick in another embodiment of the present invention;
fig. 5 is a schematic view of the upper and lower layers of checker bricks forming the gas passages according to another embodiment of the present invention.
Description of reference numerals:
100. checker bricks; 10. A brick body;
11. a first grid hole; 12. A second grid hole;
13. a third grid hole; 20. A sink groove;
30. a flow guide groove; 40. A boss;
50. a counterbore.
Detailed Description
The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.
The terms of orientation used herein, such as "upper," "lower," "top," and "bottom," are used in reference to FIG. 2, are used in a relative sense to one another or in reference to the normal use of the product, and should not be construed as limiting.
As shown in fig. 1 to 5, the utility model provides a checker brick 100 with gas channel has the brick body 10, has seted up a plurality of first check holes 11 on the brick body 10, and each first check hole 11 sets up and runs through two terminal surfaces of the relative setting of the brick body 10 along the axial of the brick body 10, offers the recess 20 and many water conservancy diversion recesses 30 that converge that are used for the air current to exchange on at least one terminal surface of the brick body, and the one end of each water conservancy diversion recess 30 is linked together with the recess 20 that converges.
The utility model provides an offer on at least one terminal surface of its brick body 10 of checker brick 100 with gas passage and converge recess 20 and many water conservancy diversion recesses 30, converge recess 20 and connect many water conservancy diversion recesses 30 and be the gaseous water conservancy diversion structure of mutual intercommunication, stack up when a plurality of checker bricks 100 along the axial direction of first check hole 11, all have above-mentioned gaseous water conservancy diversion structure on at least one terminal surface because of each checker brick 100, when two liang of checker bricks 100 are adjacent to put things in good order, the passageway that is used for the air current exchange (also the recess 20 and the water conservancy diversion recess 30 of converging that communicate each other) has been formed between the two, make gas can flow and exchange between the checker brick 100 of adjacent putting things in good order setting, thereby reach the effect that the voltage-sharing is equalized, in order to improve the whole through-hole rate and the heat transfer efficiency of heat accumulator. Meanwhile, the gas flows in the channel for gas flow exchange in a criss-cross mode, so that the overall through hole rate and the heat transfer efficiency of the heat accumulator can be improved, and the aim of improving the temperature of hot air is fulfilled; meanwhile, the heating area of the checker bricks can be increased, which is beneficial to the increase of the hot air temperature and the reduction of the usage amount of refractory materials. In addition, the converging grooves 20 and the flow guide grooves 30 are formed in the end surfaces of the checker bricks 100, so that the surface area of the checker bricks 100 is relatively increased, the heating area of the checker bricks 100 is relatively increased, and the improvement of the hot air temperature and the reduction of the usage amount of refractory materials are facilitated.
The utility model provides an it converges recess 20 and many water conservancy diversion recesses 30 to have seted up on at least one terminal surface of its brick body 10 of checker brick with gas passage, it is as an organic whole with many water conservancy diversion recesses 30 connection through the recess 20 that converges, guarantee that each water conservancy diversion recess 30 on the same terminal surface all communicates each other, the gaseous heat exchange efficiency of 100 its terminal surfaces of monolithic checker bricks department has been accelerateed, the 100 voltage-sharing effect of flow equalizing of monolithic checker brick has been improved, can improve the voltage-sharing effect of the checker brick (for example thirty-seven hole checker brick) that its aperture is little and the terminal surface area is big very much.
In an alternative embodiment of the present invention, as shown in fig. 4 and 5, the confluence groove 20 and the guide groove 30 may be formed at a lower end surface (or bottom surface) of the checker brick 100 located above; as shown in fig. 2 and 3, the converging grooves 20 and the guiding grooves 30 may be formed on the upper end surface (or the bottom surface) of the checker brick 100 located below; or, the two end surfaces of the checker brick 100 are both provided with a converging groove 20 and a guiding groove 30.
In an alternative example of this embodiment, as shown in fig. 2 and 3, the lower checker brick 100 has a converging groove 20 and a plurality of flow-guiding grooves 30 formed on an end surface (e.g., an upper end surface or a top surface) of a brick body 10, and the upper checker brick 100 has a flat end surface (e.g., a lower end surface or a bottom surface) of a brick body, which forms a passage for guiding gas when the lower checker brick 100 is stacked on the upper checker brick 100.
In another alternative example of this embodiment, as shown in fig. 4 and 5. The lower checker brick 100 has a flat surface on an end surface (e.g., an upper end surface or a top surface) of a brick body 10, and the upper checker brick 100 has a flow converging groove 20 and a plurality of flow guiding grooves 30 on an end surface (e.g., a lower end surface or a bottom surface) of a brick body, and when the lower checker brick 100 and the upper checker brick 100 are stacked, a passage for guiding gas is formed therebetween.
In yet another alternative example of this embodiment, the lower checker brick 100 is provided with a converging groove 20 and a plurality of guiding grooves 30 on an end surface (e.g., an upper end surface or a top surface) of the brick body 10, and the upper checker brick 100 is also provided with a converging groove 20 and a plurality of guiding grooves 30 on an end surface (e.g., a lower end surface or a bottom surface) of the brick body, so that when the lower checker brick 100 is stacked on the upper checker brick 100, a passage for guiding gas is formed therebetween.
In an optional embodiment of the present invention, the plurality of diversion grooves 30 are disposed corresponding to the side walls of the brick body 10, and the other end of each diversion groove 30 runs through to the corresponding side wall. By adopting the structural design, a plurality of channels for gas diversion are formed between the upper and lower layers of checker bricks 100 which are stacked mutually, and the channels are communicated with each other through the confluence groove 20, a staggered latticed structure is formed between the two layers of checker bricks for gas circulation, so that the overall through hole rate and the heat transfer efficiency of the heat accumulator are further improved.
In an alternative example of this embodiment, the other end of each guide groove 30 penetrates to the middle point of the side length of the corresponding side wall. By adopting the structural design, the flow guide grooves 30 on two adjacent stacked checker bricks 100 can be effectively prevented from being staggered mutually to cause the interruption of an airflow channel, the end surfaces of a plurality of flow guide grooves 30 which can pass through the brick body 10 are ensured to be communicated with each other all the time, and the gas flow guide structure in a latticed shape is spliced, so that the overall through hole rate and the heat transfer efficiency of the heat accumulator are further improved.
In an alternative embodiment of the present invention, the converging groove 20 is located at the center of the end surface, and further accelerates the heat exchange efficiency of the gas between the diversion grooves 30, and particularly enhances the gas flow efficiency and the heat exchange efficiency at the center of the checker brick 100.
In an optional embodiment of this embodiment of the present invention, the converging groove 20 is a circular groove or a regular polygon groove, and the converging groove 20 can accelerate the flow efficiency and the heat exchange efficiency of the gas between the guide grooves 30, thereby improving the flow equalizing effect and the heat transfer effect of the checker brick 100.
The utility model discloses an optional embodiment, brick body 10 is the end and is the column body of regular polygon, and this regular polygon's limit number is n, has seted up on the terminal surface and has converged recess 20 and n water conservancy diversion recess 30, and the recess 20 that converges is seted up in the center department of terminal surface, and n water conservancy diversion recess 30 is along the circumference equipartition that converges recess 20, and the one end of each water conservancy diversion recess 30 is connected with the recess 20 that converges, and the other end of each water conservancy diversion recess 30 runs through to the center department of a terminal surface side length respectively.
Preferably, the end surface of the brick body 10 is a regular hexagon, and the end surface is provided with a confluence groove 20 and six diversion grooves 30.
In an alternative embodiment of the present invention, the depth of the confluence groove 20 is the same as that of the guide groove 30.
Preferably, the depth of the confluence groove 20 and the depth of the diversion groove are both 2-20 mm.
In an alternative embodiment of the present invention, the first cells 11 are circular holes, the width of the diversion groove 30 is B, the inner diameter of the first cells 11 is d, the distance between two adjacent first cells 11 is L, and d/2< B < L.
In an alternative example of this embodiment, the bus groove 20 is a circular groove, and the radius of the bus groove 20 is r, so that r is L.
In another optional example of this embodiment, the converging groove 20 is a circular groove, and the radius of the converging groove 20 is r, then L ≦ r ≦ 2L.
In an optional embodiment of the present invention, two second grid holes 12 are further formed in the side wall of the brick body 10, and third grid holes 13 are formed in each corner of the brick body 10. The second grid hole 12 and the third grid hole 13 are both groove-shaped, and the side wall of the second grid hole 12 and the side wall of the third grid hole 13 are both arc-shaped. Specifically, the side wall of the second lattice hole 12 is a 180-degree arc surface, the side wall of the third lattice hole 13 is a 120-degree arc surface, and the diameters of the circles corresponding to the two arc surfaces are the same as the inner diameter of the first lattice hole 11. In the heat storage body formed by stacking a plurality of checker bricks 100, the side walls of two adjacent checker bricks 100 in each layer are mutually abutted, and two second grid holes 12 are butted to form a round hole; the corners of three adjacent checker bricks 100 abut against each other, and the three third cells 13 abut against each other to form a circular hole.
Furthermore, the inner diameters of the three grid holes (the inner diameter of the first grid hole 11, the diameter of the circle corresponding to the second grid hole 12 and the diameter of the circle corresponding to the third grid hole 13) are the same and are all d; the hole intervals are the same and are L; the diameter of the grid holes at the bottom surface (or the top surface) of the brick body is d +1, and the diameter of the grid holes at the top surface (or the bottom surface) is d-1.
Further, the value range of the inner diameter d is 15-30 mm; preferably, d is usually 15mm, 20mm, 25mm, 28mm or the like.
In an optional example of the present invention, the checker brick 100 is a 37-hole brick, that is, 37 first grid holes 11 are uniformly distributed on the brick body 10; each side wall of the brick body 10 is respectively and evenly provided with 3 second grid holes 12, and each top corner of the brick body 10 is provided with a third grid hole 13.
In other embodiments of the present invention, the checker brick 100 may be a 7-hole checker brick or a 19-hole checker brick, and the arrangement manner of the lattice holes may adopt the prior art, which is not repeated herein.
In an alternative embodiment of the present invention, at least one boss 40 or counterbore 50 is provided on at least one end of the brick body 10.
In an alternative embodiment of this embodiment, a plurality of bosses 40 are provided on an end face of the brick body 10, and the plurality of bosses 40 are uniformly distributed on a concentric circle with the center of the end face as the center.
In another alternative embodiment of this embodiment, a plurality of counter bores 50 are provided on one end face of the brick body 10, and the plurality of counter bores 50 are uniformly distributed on a concentric circle with the center of the end face as the center.
In yet another alternative embodiment of this embodiment, a plurality of bosses 40 are provided on one end surface (upper end surface or top surface) of the brick body 10, and a plurality of counterbores 50 are provided on the other end surface (lower end surface or bottom surface) of the brick body 10 in one-to-one correspondence with the bosses 40.
Further, the depth of the counterbore 50 is greater than or equal to the height of the boss 40.
Preferably, the depth of the counterbore 50 is 5mm to 20 mm.
In an alternative embodiment, the inner diameter of the counterbore 50 is slightly larger than the outer diameter of the boss 60 to facilitate smooth insertion of the boss 60 into the counterbore 50 on the brick 10 below it.
Preferably, the outer diameter of the boss 40 ranges from 1.5d to 2 d.
In an alternative embodiment, the bottom surface of the brick body 10 is provided with three bosses 40, and the three bosses 40 are uniformly distributed on a concentric circle with the center of the bottom surface as the center.
Further, three bosses 40 are respectively arranged in the top corner direction of the brick body 10.
Preferably, the radius of the concentric circles is equal to 2L.
The utility model provides a checker brick with flat gas passage, its simple structure, the preparation is convenient, and the product shaping rate is high.
The utility model provides a checker brick with horizontal gas passage is formed with vertically and horizontally staggered's horizontal gas passage between its upper and lower two-layer checker brick, and gaseous through setting up the horizontal gas passage at the checker brick upper surface, reaches the effect that the voltage-sharing was equalized flow to improve the whole through-hole rate and the heat transfer efficiency of heat accumulator, have the effect that improves hot-blast temperature.
The utility model provides a checker brick with horizontal gas passage, the groove of converging, water conservancy diversion recess offered on its top surface have increased the heating area of checker brick, are favorable to hot air temperature's improvement and reduction refractory material's use amount.
In the following description of the embodiments, the invention is described in detail, but the description is not to be construed as limiting the invention for any reason, and in particular, the features described in the different embodiments may be combined with each other as desired, thereby forming other embodiments, and the features are understood to be applicable to any one embodiment and not limited to the described embodiments unless explicitly described to the contrary.
Claims (10)
1. A checker brick with a gas channel is provided with a brick body and is characterized in that the brick body is provided with a plurality of first grid holes, each first grid hole is arranged along the axial direction of the brick body and penetrates through two opposite end faces of the brick body, at least one end face of the brick body is provided with a confluence groove and a plurality of flow guide grooves for gas flow exchange, and one end of each flow guide groove is communicated with the confluence groove.
2. A checker brick having gas passages as claimed in claim 1, wherein a plurality of said flow guide grooves are provided in one-to-one correspondence with respective side walls of said brick body, and the other end of each flow guide groove penetrates to the corresponding side wall.
3. Checker brick with gas passages as claimed in claim 2, wherein the other end of each guide groove penetrates to a midpoint of a side length of the corresponding side wall.
4. Checker brick with gas passages as claimed in any of claims 1 to 3, wherein said confluence groove is located at the center of said end faces.
5. Checker brick with gas passages as claimed in claim 4, wherein said confluence groove is a circular groove or a regular polygonal groove.
6. The checker brick with gas passages as claimed in claim 1, wherein the brick is a cylindrical body having an end face in the shape of a regular hexagon, the end face is provided with a confluence groove and six flow guide grooves, the confluence groove is provided at the center of the end face, the flow guide grooves are uniformly distributed along the circumference of the confluence groove, and the other end of each flow guide groove penetrates through the center of the side length of the regular hexagon.
7. Checker brick with gas passages as claimed in claim 1, wherein said flow-joining grooves and said flow-guiding grooves are formed on both of said end faces of said brick body.
8. Checker brick with gas passages as claimed in claim 1, wherein the depth of said confluence groove is the same as the depth of said guide grooves.
9. Checker brick with gas passages as claimed in claim 1, wherein said first cells are circular holes, said flow guide grooves have a width of B, said first cells have an inner diameter of d, and a distance between two adjacent first cells is L, such that d/2< B < L.
10. Checker brick with gas passages as claimed in claim 9, wherein said confluence grooves are circular grooves, and wherein if the radius of said confluence grooves is r, then L. ltoreq. r.ltoreq.2L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022168430.8U CN212451481U (en) | 2020-09-28 | 2020-09-28 | Checker brick with gas channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022168430.8U CN212451481U (en) | 2020-09-28 | 2020-09-28 | Checker brick with gas channel |
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| CN212451481U true CN212451481U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063786A (en) * | 2020-09-28 | 2020-12-11 | 中冶京诚工程技术有限公司 | Checker brick with gas channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063786A (en) * | 2020-09-28 | 2020-12-11 | 中冶京诚工程技术有限公司 | Checker brick with gas channel |
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