CN212620117U - Novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln - Google Patents
Novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln Download PDFInfo
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- CN212620117U CN212620117U CN202020690224.0U CN202020690224U CN212620117U CN 212620117 U CN212620117 U CN 212620117U CN 202020690224 U CN202020690224 U CN 202020690224U CN 212620117 U CN212620117 U CN 212620117U
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Abstract
The utility model relates to a novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln, including the high temperature resistant collet of magnesium chromium, the high temperature resistant brick body of magnesium chromium, the high temperature resistant stopper of magnesium chromium, positioning bolt, the high temperature resistant collet of magnesium chromium is the cylinder trough-shaped structure of "U" font, the high temperature resistant collet tank bottom of magnesium chromium encircles four at least location screws of high temperature resistant collet axis equipartition, and all establish a positioning bolt in every location screw, the high temperature resistant stopper of magnesium chromium inlays in the location screw, its lower terminal surface offsets with the positioning bolt up end, the high temperature resistant brick body of magnesium chromium is "Jiong" font cylinder trough-shaped structure for axial cross-section, the cladding is at the high temperature resistant collet of magnesium chromium. The novel device has good universality, and can effectively meet the requirement of rapid positioning and laying operation with the inner surfaces of various kilns and pipeline equipment; on the other hand, the heat insulation and heat preservation material has good wear resistance, high temperature resistance and heat insulation and preservation capability, can effectively reduce the heat loss of the industrial kiln and improves the heating efficiency and the comprehensive utilization rate of heat energy.
Description
Technical Field
The utility model relates to a refractory brick, in particular to a novel wear-resistant heat-insulating brick with a magnesium-chromium lining for an industrial kiln.
Background
The lining layer of the refractory brick is an important device for improving the high temperature resistance, the wear resistance and the heat insulation and preservation capability of the inner surface of the equipment in the cement return kiln, the metal melting kiln and other equipment at present, but because the industrial kiln and the pipeline equipment are usually made of metal materials, and the refractory brick is made of non-metal materials, the refractory brick is usually directly bonded by a bonding agent or is directly connected with the kiln equipment by bolts, so the laying operation difficulty of the refractory brick is large, the construction efficiency is low, the connecting structural strength and the stability of the laid refractory brick and the metal surface are poor, the installation, the maintenance and construction efficiency and the labor intensity of the refractory brick in the equipment such as the current industrial kiln and other equipment are low, the lining layer of the refractory brick is easy to fall off and damage, and when the currently used refractory brick falls off, a plurality of refractory bricks at a fault position are usually required to be removed at the same time and then subjected to repair construction, so that the fault rate and the equipment operation management cost of the current industrial kiln equipment caused by the refractory lining factors are further increased;
in addition, when the traditional refractory brick lining is used, the high temperature resistance and the wear resistance are usually achieved only by the materials adopted by the refractory brick lining, although the use requirement can be met, the heat transfer capacity is relatively high, so that the heat loss phenomenon is serious when the kiln is operated, and the defects of low heating efficiency and high heating operation energy consumption exist in different degrees of the current industrial kiln.
Therefore, in order to meet the current situation, the development of a novel magnesia-chrome lined wear-resistant heat-insulating brick for an industrial kiln is urgently needed to meet the requirement of practical use.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a novel wear-resistant heat-insulating magnesia-chrome lining brick for industrial kilns, which has simple structure, flexible and convenient use and good universality, on one hand, has good universality, can effectively meet the requirements of rapid positioning and laying operation with the inner surfaces of various kilns and pipeline equipment, and has good connection stability, structural strength and wear-resistant and high-temperature-resistant performance; on the other hand lays and the routine maintenance in, has good equipment fixing location and the ability of local change adjustment to have good wear-resisting, high temperature resistant and thermal-insulated heat preservation ability, thereby when effectual improvement is laid location operating efficiency, when having reduced construction intensity of labour, construction cost and this neotype use cost, can effectually reduce the heat of industrial kiln and scatter and disappear, improve heating efficiency and heat energy comprehensive utilization, also help reducing industrial kiln heating operation energy consumption cost simultaneously.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
a novel wear-resistant heat-insulating brick lined with magnesium and chromium for industrial kiln is composed of a refractory magnesium-chromium bottom supporter, refractory magnesium-chromium bricks, refractory magnesium-chromium plugs and locating bolts, the refractory magnesium-chromium bottom supporter has a U-shaped cylindrical slot structure, at least four locating screws uniformly distributed around the refractory magnesium-chromium bottom supporter, and locating bolts respectively arranged in said locating screws and in parallel with said refractory magnesium-chromium bottom supporter for inserting said refractory magnesium-chromium plugs in said locating screws and in coaxial mode, the lower end face of the magnesium-chromium high-temperature-resistant brick body is 0-5 mm higher than the lower end face of the magnesium-chromium high-temperature-resistant collet, the bottom of the magnesium-chromium high-temperature-resistant brick body is abutted to the upper end face of the magnesium-chromium high-temperature-resistant collet, the inner surface of the groove wall of the magnesium-chromium high-temperature-resistant brick body is connected with the outer surface of the groove wall of the magnesium-chromium high-temperature-resistant collet, the magnesium-chromium high-temperature-resistant collet and the magnesium-chromium high-temperature-resistant brick body jointly form an isolation air cavity.
Furthermore, the thickness of the side wall and the bottom of the magnesium-chromium high-temperature-resistant bottom support and the side wall and the bottom of the magnesium-chromium high-temperature-resistant brick body are uniformly distributed and less than 10 mm, wherein the cross section of the lower end face of the magnesium-chromium high-temperature-resistant bottom support is uniformly distributed with a plurality of bearing grooves of which the cross sections are in an isosceles trapezoid shape or an arc structure, the bearing grooves are distributed in parallel, the depth of each bearing groove is not more than 50% of the thickness of the bottom of the magnesium-chromium high-temperature-resistant bottom support, and the diameter of the lower end face of the magnesium-chromium high-temperature-.
Furthermore, the magnesium-chromium high-temperature-resistant bottom support, the side walls of the magnesium-chromium high-temperature-resistant brick body, the side wall of the positioning screw hole, the magnesium-chromium high-temperature-resistant plug and the positioning bolt are connected through threads.
Furthermore, a guide groove with the depth of 1/8-1/3 of the bottom thickness of the magnesium-chromium high-temperature-resistant brick body is arranged at the bottom of the magnesium-chromium high-temperature-resistant brick body groove corresponding to the upper end surface of the groove wall of the magnesium-chromium high-temperature-resistant bottom support, the guide groove is of a closed annular structure which is coaxially distributed with the magnesium-chromium high-temperature-resistant brick body, and the upper end surface of the groove wall of the magnesium-chromium high-temperature-resistant bottom support is embedded in the guide groove and is 1/2 with the depth of the guide groove between the guide groove and the bottom of.
Furthermore, disc springs which are coaxially distributed with the guide grooves are arranged in the guide grooves, the upper end faces and the lower end faces of the disc springs respectively abut against the bottoms of the guide grooves and the upper end faces of the magnesium-chromium high-temperature-resistant bottom supports, and the side surfaces of the disc springs are in sliding connection with the side walls of the guide grooves.
Furthermore, the lower end face of the positioning bolt exceeds the lower end face of the magnesium-chromium high-temperature-resistant bottom support by at least 5 cm, the distance between the upper end face and the upper end face of the positioning screw hole is 1/3-2/3 of the depth of the positioning screw hole, and the positioning screw hole is of a counter bore structure.
Furthermore, the volume of the isolation air cavity is 10% -50% of the total volume of the magnesium-chromium high-temperature-resistant bottom support and the magnesium-chromium high-temperature-resistant brick body after connection.
The novel structure is simple, the use is flexible and convenient, the universality is good, on one hand, the universality is good, the requirement of rapid positioning and laying operation on the inner surfaces of various kilns and pipeline equipment can be effectively met, and the novel structure has good connection stability, structural strength and wear-resisting and high-temperature-resisting properties; on the other hand lays and the routine maintenance in, has good equipment fixing location and the ability of local change adjustment to have good wear-resisting, high temperature resistant and thermal-insulated heat preservation ability, thereby when effectual improvement is laid location operating efficiency, when having reduced construction intensity of labour, construction cost and this neotype use cost, can effectually reduce the heat of industrial kiln and scatter and disappear, improve heating efficiency and heat energy comprehensive utilization, also help reducing industrial kiln heating operation energy consumption cost simultaneously.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in figure 1, a novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln, including the high temperature resistant collet 1 of magnesium chromium, the high temperature resistant brick body 2 of magnesium chromium, the high temperature resistant stopper 3 of magnesium chromium, positioning bolt 4, wherein the high temperature resistant collet 1 of magnesium chromium is the cylinder trough-shaped structure of axial cross-section "U" font, the high temperature resistant collet 1 tank bottom of magnesium chromium encircles the high temperature resistant collet 1 axial equipartition of magnesium chromium four at least positioning screw 5, positioning screw 5 axial and the high temperature resistant collet 1 axial parallel distribution of magnesium chromium, and all establish a positioning bolt 4 in every positioning screw 5, the terminal surface is located the high temperature resistant collet 1 bottom end of magnesium chromium outside under the positioning bolt 4, the up end inlays in positioning screw 5, the high temperature resistant stopper 3 of magnesium chromium inlays in positioning screw 4, its down the terminal surface offsets with positioning bolt 4 up end, the up end is 0-5 millimeters higher than the high temperature resistant collet 1 tank bottom of magnesium chromium.
In this embodiment, the mg-cr refractory brick 2 has a cylindrical groove-shaped structure with an axial cross section of "Jiong", is coated outside the mg-cr refractory bottom support 1 and coaxially distributed with the mg-cr refractory bottom support 1, wherein the lower end surface of the mg-cr refractory brick 2 is 0-5 mm higher than the lower end surface of the mg-cr refractory bottom support 1, the bottom of the mg-cr refractory brick 2 abuts against the upper end surface of the mg-cr refractory bottom support 1, the inner surface of the wall of the mg-cr refractory brick 2 is connected with the outer surface of the wall of the mg-cr refractory bottom support 1, the mg-cr refractory bottom support 1 and the mg-cr refractory brick 2 jointly form an isolation air cavity 6 with a rectangular axial cross section, and the height of the isolation air cavity is not less than 5 mm.
Simultaneously, the thickness equipartition of lateral wall and the tank bottom of the high temperature resistant collet 1 of magnesium chromium, the high temperature resistant brick body 2 of magnesium chromium be less than 10 millimeters, wherein the terminal surface equipartition a plurality of cross sections under the high temperature resistant collet 1 of magnesium chromium be isosceles trapezoid, the bearing groove 7 of any one of circular arc structure, bearing groove 7 mutual parallel distribution, the degree of depth all is not greater than 50% of the high temperature resistant collet 1 bottom thickness of magnesium chromium, the terminal surface diameter under the high temperature resistant collet 1 of magnesium chromium is 1/4-3/4 of the high temperature resistant brick body 1 up end diameter of magnesium chromium.
Further optimally, the side walls of the magnesium-chromium high-temperature-resistant bottom support 1 and the magnesium-chromium high-temperature-resistant brick body 2, and the side wall of the positioning screw hole 5, the magnesium-chromium high-temperature-resistant plug 3 and the positioning bolt 4 are connected through threads 10.
It is important to point out that the groove bottom of the magnesium-chromium high-temperature resistant brick body 2 corresponding to the upper end surface of the groove wall of the magnesium-chromium high-temperature resistant collet 1 is provided with a guide groove 8 with the depth of 1/8-1/3 of the thickness of the groove bottom of the magnesium-chromium high-temperature resistant brick body 2, the guide groove 8 is a closed annular structure coaxially distributed with the magnesium-chromium high-temperature resistant brick body 2, the upper end surface of the groove wall of the magnesium-chromium high-temperature resistant collet 1 is embedded in the guide groove 8, and 1/2 with the depth of 0 to 8 of the guide groove is arranged between the upper end surface of the.
Preferably, the guide groove 8 is internally provided with a disc spring 9 which is coaxially distributed with the guide groove 8, the upper end surface and the lower end surface of the disc spring 9 are respectively abutted against the bottom of the guide groove 8 and the upper end surface of the magnesium-chromium high-temperature resistant bottom support 1, and the side surface of the disc spring is in sliding connection with the side wall of the guide groove 8.
In addition, the lower end face of the positioning bolt 4 exceeds the lower end face of the magnesium-chromium high-temperature-resistant bottom support 1 by at least 5 cm, the distance between the upper end face and the upper end face of the positioning screw hole 4 is 1/3-2/3 of the depth of the positioning screw hole 5, and the positioning screw hole 5 is of a counter bore structure.
In the embodiment, the volume 6 of the isolation air cavity is 10-50% of the total volume of the magnesium-chromium high-temperature-resistant bottom support 1 and the magnesium-chromium high-temperature-resistant brick body 2 after connection.
In the specific implementation of the utility model, firstly, a magnesium-chromium high-temperature resistant bottom support, a magnesium-chromium high-temperature resistant brick body, a magnesium-chromium high-temperature resistant plug and a positioning bolt are respectively prepared, then the magnesium-chromium high-temperature resistant bottom support is connected and positioned with the inner surface of the industrial kiln through a positioning bolt, then the positioning bolt is limited and protected by heat insulation through a magnesium-chromium high-temperature resistant plug, wherein, the structure volume and the self weight of the magnesium-chromium high-temperature resistant bottom support are relatively small, thereby effectively improving the stability of the connection and the positioning of the magnesium-chromium high-temperature resistant bottom support and the inner surface of the industrial kiln equipment and the working efficiency of the connection and the positioning operation, and after the positioning of the magnesium-chromium high-temperature-resistant bottom support is completed, the magnesium-chromium high-temperature-resistant brick body is wrapped outside the magnesium-chromium high-temperature-resistant bottom support and is in threaded connection with the magnesium-chromium high-temperature-resistant bottom support, so that the purpose of integrally positioning the magnesium-chromium high-temperature-resistant brick body is realized, and the purposes of quickly completing the novel installation positioning and reducing the labor intensity of construction are achieved.
In addition, the novel split structure of the magnesia-chrome high-temperature-resistant bottom support and the magnesia-chrome high-temperature-resistant brick body is adopted, on one hand, the weight of a construction operation object during single construction of the novel split structure is reduced, the construction labor intensity is effectively reduced, the construction efficiency is improved, on the other hand, in operation, the wear-resistant bearing is mainly carried out by the magnesia-chrome high-temperature-resistant brick body, and when the wear amount of the magnesia-chrome high-temperature-resistant brick body is overlarge, the magnesia-chrome high-temperature-resistant bottom support and the magnesia-chrome high-temperature-resistant brick body can be directly separated, and the fault repairing purpose can be achieved only by replacing the new magnesia-chrome high-temperature-resistant brick body, so that the fault repairing operation efficiency is greatly improved, the use cost of the novel split structure is greatly reduced, in addition, the defects that the whole replacement is needed during the maintenance operation of the traditional lining brick and the normal lining brick in, the maintenance operation efficiency and the operation stability of the kiln equipment are improved.
Meanwhile, when the novel positioning device is installed, on one hand, the purpose of further strengthening the positioning stability of the novel positioning device can be realized by pouring adhesive into the bearing groove on the lower end surface of the magnesium-chromium high-temperature-resistant bottom support; on the other hand accessible guide way is to the spacing of the high temperature resistant collet of magnesium chromium and guide way realize the high temperature resistant collet of magnesium chromium, the high temperature resistant brick body elastic connection of magnesium chromium to belleville spring, effectual reduction and elimination this novel operation because of vibrations and the stress concentration that expend with heat and contract with cold produced and the defect of relative displacement deformation, have further improved the stability and the reliability of this novel operation.
It is emphatically explained that this novel in use, when satisfying with traditional resistant firebrick and reaching purposes such as high temperature resistant, wear-resisting protection through self material, the effectual this novel heat transfer efficiency that reduces of accessible isolation air cavity in addition to reach and reduce the industrial kiln heat and scatter and disappear, improve industrial kiln heating efficiency and reduce the operation energy consumption.
The novel structure is simple, the use is flexible and convenient, the universality is good, on one hand, the universality is good, the requirement of rapid positioning and laying operation on the inner surfaces of various kilns and pipeline equipment can be effectively met, and the novel structure has good connection stability, structural strength and wear-resisting and high-temperature-resisting properties; on the other hand lays and the routine maintenance in, has good equipment fixing location and the ability of local change adjustment to have good wear-resisting, high temperature resistant and thermal-insulated heat preservation ability, thereby when effectual improvement is laid location operating efficiency, when having reduced construction intensity of labour, construction cost and this neotype use cost, can effectually reduce the heat of industrial kiln and scatter and disappear, improve heating efficiency and heat energy comprehensive utilization, also help reducing industrial kiln heating operation energy consumption cost simultaneously.
Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description have been made only for the purpose of illustrating the principles of the invention. The present invention can be further modified and improved without departing from the spirit and scope of the present invention. Such changes and modifications are intended to be within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln which characterized in that: the novel lining magnesium-chromium wear-resistant heat-insulating brick for the industrial kiln comprises a magnesium-chromium high-temperature-resistant bottom support, a magnesium-chromium high-temperature-resistant brick body, a magnesium-chromium high-temperature-resistant plug and positioning bolts, wherein the magnesium-chromium high-temperature-resistant bottom support is of a cylindrical groove-shaped structure with a U-shaped axis cross section, at least four positioning screw holes are uniformly distributed at the bottom of the magnesium-chromium high-temperature-resistant bottom support around the axis of the magnesium-chromium high-temperature-resistant bottom support, the axes of the positioning screw holes and the axis of the magnesium-chromium high-temperature-resistant bottom support are distributed in parallel, one positioning bolt is arranged in each positioning screw hole, the lower end face of each positioning bolt is positioned outside the lower end face of the magnesium-chromium high-temperature-resistant bottom support, the upper end face of each positioning bolt is embedded in each positioning screw hole, the magnesium-chromium high-temperature-resistant plug is embedded in each positioning screw hole, the lower end face of each positioning, the cladding is outside the high temperature resistant collet of magnesium chromium and with the coaxial distribution of the high temperature resistant collet of magnesium chromium, wherein terminal surface is 0-5 millimeters higher than the terminal surface under the high temperature resistant collet of magnesium chromium under the high temperature resistant brick body of magnesium chromium, and the high temperature resistant brick body tank bottom of magnesium chromium offsets with the high temperature resistant collet up end of magnesium chromium, and the high temperature resistant brick body cell wall internal surface of magnesium chromium is connected with the high temperature resistant collet cell wall surface of magnesium chromium, constitute the isolation air cavity that highly is not less than 5 millimeters between the high temperature resistant collet of magnesium chromium, the high temperature resistant brick body of magnesium chromium jointly, and axial cross-section is the rectangle.
2. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 1, is characterized in that: the magnesium-chromium high-temperature-resistant brick is characterized in that the thickness of the side wall and the bottom of the magnesium-chromium high-temperature-resistant bottom support are uniformly distributed and are less than 10 mm, a plurality of bearing grooves with cross sections in any one of isosceles trapezoid and circular arc structures are uniformly distributed on the lower end face of the magnesium-chromium high-temperature-resistant bottom support, the bearing grooves are distributed in parallel, the depth of each bearing groove is not more than 50% of the thickness of the bottom of the magnesium-chromium high-temperature-resistant bottom support, and the diameter of the lower end face of the magnesium-chromium high-temperature-resistant bottom support is 1/4-3/4.
3. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 1, is characterized in that: the magnesium-chromium high-temperature-resistant bottom support, the side walls of the magnesium-chromium high-temperature-resistant brick body, the side wall of the positioning screw hole, the magnesium-chromium high-temperature-resistant plug and the positioning bolt are connected through threads.
4. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 1, is characterized in that: the bottom of the magnesium-chromium high-temperature-resistant brick body groove corresponding to the upper end face of the magnesium-chromium high-temperature-resistant bottom support groove wall is provided with a guide groove with the depth of 1/8-1/3 of the bottom of the magnesium-chromium high-temperature-resistant brick body groove, the guide groove is of a closed annular structure which is coaxially distributed with the magnesium-chromium high-temperature-resistant brick body, the upper end face of the magnesium-chromium high-temperature-resistant bottom support groove wall is embedded in the guide groove, and the bottom of the guide groove is 1/2 with the depth of 0 to the guide groove.
5. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 4, is characterized in that: the guide groove is internally provided with disc springs which are coaxially distributed with the guide groove, the upper end surface and the lower end surface of each disc spring are respectively abutted against the bottom of the guide groove and the upper end surface of the magnesium-chromium high-temperature-resistant bottom support, and the side surfaces of the disc springs are in sliding connection with the side walls of the guide groove.
6. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 1, is characterized in that: the lower end face of the positioning bolt exceeds the lower end face of the magnesium-chromium high-temperature-resistant bottom support by at least 5 cm, the distance between the upper end face and the upper end face of the positioning screw hole is 1/3-2/3 of the depth of the positioning screw hole, and the positioning screw hole is of a counter bore structure.
7. The novel wear-resistant and heat-insulating magnesia-chrome lining brick for industrial kilns as claimed in claim 1, is characterized in that: the volume of the isolation air cavity is 10% -50% of the total volume of the magnesium-chromium high-temperature-resistant bottom support and the magnesium-chromium high-temperature-resistant brick body after connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690224.0U CN212620117U (en) | 2020-04-29 | 2020-04-29 | Novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690224.0U CN212620117U (en) | 2020-04-29 | 2020-04-29 | Novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln |
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| CN212620117U true CN212620117U (en) | 2021-02-26 |
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| CN202020690224.0U Expired - Fee Related CN212620117U (en) | 2020-04-29 | 2020-04-29 | Novel wear-resisting insulating brick of inside lining magnesium chromium of industrial kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922222A (en) * | 2021-03-17 | 2021-06-08 | 东台市港泰耐火材料有限公司 | Assembled heat insulation plate brick |
| CN113026991A (en) * | 2021-03-17 | 2021-06-25 | 东台市港泰耐火材料有限公司 | Clamping and positioning type brick heat insulation structure |
| CN113027035A (en) * | 2021-03-17 | 2021-06-25 | 东台市港泰耐火材料有限公司 | Floating brick body thermal-insulated structure |
| CN113047510A (en) * | 2021-03-17 | 2021-06-29 | 东台市港泰耐火材料有限公司 | Butt locking type brick heat insulation structure |
| CN113073784A (en) * | 2021-03-17 | 2021-07-06 | 东台市港泰耐火材料有限公司 | Spacing formula insulated panel brick |
-
2020
- 2020-04-29 CN CN202020690224.0U patent/CN212620117U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922222A (en) * | 2021-03-17 | 2021-06-08 | 东台市港泰耐火材料有限公司 | Assembled heat insulation plate brick |
| CN113026991A (en) * | 2021-03-17 | 2021-06-25 | 东台市港泰耐火材料有限公司 | Clamping and positioning type brick heat insulation structure |
| CN113027035A (en) * | 2021-03-17 | 2021-06-25 | 东台市港泰耐火材料有限公司 | Floating brick body thermal-insulated structure |
| CN113047510A (en) * | 2021-03-17 | 2021-06-29 | 东台市港泰耐火材料有限公司 | Butt locking type brick heat insulation structure |
| CN113073784A (en) * | 2021-03-17 | 2021-07-06 | 东台市港泰耐火材料有限公司 | Spacing formula insulated panel brick |
| CN113026991B (en) * | 2021-03-17 | 2022-06-10 | 港泰耐火材料(江苏)有限公司 | Clamping and positioning type brick heat insulation structure |
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Granted publication date: 20210226 Termination date: 20210429 |