CN112552060A - High-strength siliceous tundish dry vibrating material and preparation method and equipment thereof - Google Patents
High-strength siliceous tundish dry vibrating material and preparation method and equipment thereof Download PDFInfo
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
Abstract
The invention belongs to the technical field of refractory materials, and particularly relates to a high-strength siliceous tundish dry vibrating material, and a preparation method and equipment thereof. The preparation method has the advantages of simple and effective mixing and stirring preparation method of the tundish dry vibrating material, good self corrosion resistance effect of the vibrating material, high structural stability, high strength, strong anti-scouring capability and high hardness, and can meet the requirement of 30h steel-making continuous casting time. In addition, the double-wheel rolling mixer used in the preparation method structurally comprises a mixer main body, a driving column, a stirring column, a perforated cylinder unit, a regulating pipe unit and a double-wheel cylinder unit, and has the advantages of good material secondary crushing effect during stirring and mixing, flexible and selectable rolling positions, high self stability of the rolling structure, convenience in disassembly and assembly and maintenance, high stability during fixed use and difficulty in loosening.
Description
Technical Field
The invention belongs to the technical field of refractory materials, and particularly relates to a high-strength siliceous tundish dry vibrating material, and a preparation method and equipment thereof.
Background
Tundish, which is a device used in the continuous steel casting process, needs to be lined with refractory material, which is usually a dry vibrating material for a tundish, to ensure the stability during continuous casting.
The existing tundish dry vibrating material mainly comprises siliceous materials and magnesium materials, wherein the siliceous materials and the magnesium materials are acid refractory materials, the application is earlier, and the production and use technology is mature. On the other hand, the silicon material of the existing silicon tundish dry vibrating material is generally silicon oxide, so that the problems of low strength, poor anti-corrosion capability and incapability of meeting the process requirement of 30 hours of steelmaking continuous casting exist.
Therefore, in view of the above, there is a need in the market for an improved dry-type vibration material for siliceous tundish, which solves the above problems, and a simple and efficient method and apparatus for preparing vibration material are also needed.
The Chinese patent with patent publication No. CN103771867A and publication No. 2014.05.07 discloses an environment-friendly dry vibration material for a tundish, which comprises the following components: 15-17 parts of 5-7mm fused magnesia particles, 20-22 parts of 2-5mm fused magnesia particles, 7-9 parts of 0.5-1mm fused magnesia particles, 4-6 parts of 200-mesh light-burned magnesia powder, 1-3 parts of 200-mesh Al2O3 powder, 1-3 parts of 200-mesh silicon oxide powder, 2-4 parts of 200-mesh calcium oxide powder, 0.5-1.5 parts of sodium tripolyphosphate, 0.5-1.5 parts of sodium hexametaphosphate, 0.1-0.3 part of dextrin, 1.5-2.5 parts of polyvinyl alcohol and 2-4 parts of bentonite.
However, the dry vibrating material in the patent of the invention adopts the silica powder with relatively poor strength, so that the final tundish lining has insufficient strength and cannot meet the requirement of 30 hours of continuous casting time.
Disclosure of Invention
The invention aims to provide a high-strength siliceous tundish dry vibrating material, and a preparation method and equipment thereof. The preparation method has the advantages of simple and effective mixing and stirring preparation method of the tundish dry vibrating material, good self corrosion resistance effect of the vibrating material, high structural stability, high strength, strong anti-scouring capability and high hardness, and can meet the requirement of 30h steel-making continuous casting time. In addition, the double-wheel rolling mixer used in the preparation method structurally comprises a mixer main body, a driving column, a stirring column, a perforated cylinder unit, a regulating pipe unit and a double-wheel cylinder unit, and has the advantages of good material secondary crushing effect during stirring and mixing, flexible and selectable rolling positions, high self stability of the rolling structure, convenience in disassembly and assembly and maintenance, high stability during fixed use and difficulty in loosening.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-strength siliceous tundish dry vibrating material sequentially comprises the following components in parts by weight:
55-62 parts of siliceous aggregate,
45-50 parts of siliceous fine powder,
25-28 parts of high-aluminum fine powder,
15-16 parts of borax,
12-25 parts of phenolic resin,
10-13 parts of silicon carbide.
The further preferred technical scheme is as follows: the particle size of the siliceous aggregate is 0.5-10mm, the particle size of the siliceous fine powder is 0.03-0.09mm, and the particle size of the high-alumina fine powder is 0.02-0.08 mm.
The further preferred technical scheme is as follows: the adhesive also comprises an additive, wherein the additive comprises bentonite, sodium metasilicate, polyvinyl alcohol and methyl silicone oil.
A preparation method of a high-strength siliceous tundish dry vibrating material sequentially comprises the following steps:
s1, stirring and mixing the siliceous aggregate, the siliceous fine powder, the high-alumina fine powder, the borax and the silicon carbide in a stirrer to obtain a vibration material precursor;
and S2, adding phenolic resin and an additive into the vibration material precursor, and stirring and mixing to obtain the final high-strength siliceous tundish dry vibration material.
The further preferred technical scheme is as follows: stirring and mixing through a double-wheel rolling mixer, wherein the volume of the double-wheel rolling mixer is 0.5-1.5m3The stirring speed in S1 is 50-80r/min, and the stirring speed in S2 is 60-150 r/min.
The further preferred technical scheme is as follows: the double round rolls mixes the machine and is in including mixing the machine main part, sets up drive column in the mixer main part sets up stirring post on the drive column is overlapped on the stirring post terminal surface or the trompil barrel unit on the annular face, the spiro union sets up regulating tube unit on the trompil barrel unit to and insert the setting and be in be used for on the regulating tube unit mix the double round cylinder unit that rolls on the inner ring face of machine main part or interior bottom surface.
The further preferred technical scheme is as follows: the perforated cylinder unit comprises a cylinder body, two circular mounting holes, a port annular inner groove, a clamping elastic pipe and a thread section, wherein the cylinder body is used for inserting the end face of the stirring column, the two circular mounting holes are formed in the cylinder wall of the cylinder body and are used for being sleeved on the annular face of the stirring column, the port annular inner groove is formed in the opening of the cylinder body, the clamping elastic pipe is arranged on the port annular inner groove and is used for inwards clamping the annular face of the stirring column, and the thread section is arranged on the outer annular face of the cylinder.
The further preferred technical scheme is as follows: the adjusting pipe unit comprises an inner threaded pipe arranged on the cylinder main body in a screwed mode, the inner threaded pipe is arranged on the inner threaded pipe and is close to one end of the circular mounting hole, the position of the end of the circular mounting hole is used for clamping the elastic ring of the stirring column, one end of the inner threaded pipe is used for installing the annular outer groove of the elastic ring, the outer side of the annular outer groove is used for clamping the arc-shaped clamping piece of the elastic ring inwards, the radial screw hole in the inner threaded pipe is arranged on the radial screw hole and penetrates through the elastic ring of the arc-shaped clamping piece for clamping the stud, and the elastic ring is arranged on the outer side end of the clamping stud for clamping the arc-shaped clamping piece for clamping the end head plate.
The further preferred technical scheme is as follows: the adjusting pipe unit is characterized in that the adjusting pipe unit is further arranged on the other side face of the end head plate and screwed in through a screw joint in a mode of the radial screw hole to be used for matching with the clamping elastic pipe to clamp the radial clamping stud of the annular face of the stirring column together, the clamping elastic block is arranged on the end face of the radial clamping stud, and the elastic ring clamping strip arranged on the arc-shaped clamping piece is arranged.
The further preferred technical scheme is as follows: the double round cylinder unit is including inserting the erection column of internal thread pipe sets up the spring groove on the erection column medial surface, set up the spring groove with jack-up spring between the outside terminal surface of drum main part sets up T type mounting bracket on the terminal surface of erection column outside to and overlap respectively the both ends of T type mounting bracket are used for rolling two rollers that roll on mixing machine main part inner ring face or interior bottom surface.
The tundish dry vibrating material is prepared by reasonably compounding siliceous aggregate, siliceous fine powder, high-alumina fine powder, borax, phenolic resin and silicon carbide, then matching with an additive, and finally stirring and mixing. The preparation method has the advantages of simple and effective mixing and stirring preparation method of the tundish dry vibrating material, good self corrosion resistance effect of the vibrating material, high structural stability, high strength, strong anti-scouring capability and high hardness, and can meet the requirement of 30h steel-making continuous casting time. In addition, the double-wheel rolling mixer used in the preparation method structurally comprises a mixer main body, a driving column, a stirring column, a perforated cylinder unit, a regulating pipe unit and a double-wheel cylinder unit, and has the advantages of good material secondary crushing effect during stirring and mixing, flexible and selectable rolling positions, high self stability of the rolling structure, convenience in disassembly and assembly and maintenance, high stability during fixed use and difficulty in loosening.
Drawings
FIG. 1 is a schematic view of a two-wheel laminating mixer according to the present invention.
Fig. 2 is a schematic view of the position structure of the open-pore cylinder unit in the invention.
FIG. 3 is a schematic diagram of the use of the two-wheel cylinder unit of the present invention on the inner annular surface of the mixer body.
Fig. 4 is a schematic view of the use of the elastic ring of the present invention.
Fig. 5 is a schematic view of the use of the clamped elastic tube in the present invention.
FIG. 6 is a schematic view of the construction of the arcuate clamping tabs of the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in the attached figures 1, 2, 3, 4, 5 and 6, the high-strength siliceous tundish dry vibrating material sequentially comprises the following components in parts by weight:
55-62 parts of siliceous aggregate,
45-50 parts of siliceous fine powder,
25-28 parts of high-aluminum fine powder,
15-16 parts of borax,
12-25 parts of phenolic resin,
10-13 parts of silicon carbide.
In this embodiment, the siliceous aggregate is SiO2Silica with the content of not less than 96 percent is used as a main raw material or particles made of waste silicon bricks, and newly added silicon carbide has high Mohs hardness and excellent heat-conducting property, is a semiconductor, can resist oxidation at high temperature, can finally ensure the siliceous tundish dry vibration material, and meets the process requirement of 30 hours of steelmaking continuous casting.
The particle size of the siliceous aggregate is 0.5-10mm, the particle size of the siliceous fine powder is 0.03-0.09mm, and the particle size of the high-alumina fine powder is 0.02-0.08 mm. The adhesive also comprises an additive, wherein the additive comprises bentonite, sodium metasilicate, polyvinyl alcohol and methyl silicone oil.
In the embodiment, the additive can further improve the corrosion resistance, the scouring resistance and the final structural strength of the vibration material.
A preparation method of a high-strength siliceous tundish dry vibrating material sequentially comprises the following steps:
s1, stirring and mixing the siliceous aggregate, the siliceous fine powder, the high-alumina fine powder, the borax and the silicon carbide in a stirrer to obtain a vibration material precursor;
and S2, adding phenolic resin and an additive into the vibration material precursor, and stirring and mixing to obtain the final high-strength siliceous tundish dry vibration material.
Stirring and mixing through a double-wheel rolling mixer, wherein the volume of the double-wheel rolling mixer is 0.5-1.5m3The stirring speed in S1 is 50-80r/min, and the stirring speed in S2 is 60-150 r/min.
In this embodiment, the phenolic resin and the additive are added later, and the stirring is performed at a relatively high rotation speed, so that the stirring and mixing uniformity of the dry vibrating material can be finally ensured.
The double round rolls mixes the machine and is in including mixing machine main part 1, sets up drive column 2 in the machine main part 1 sets up stirring post 3 on the drive column 2, the cover is in trompil barrel unit 4 on 3 terminal surfaces of stirring post or on the annular face, the spiro union sets up regulating pipe unit 5 on the trompil barrel unit 4 to and insert the setting and be in on the regulating pipe unit 5 and be used for roll the double round cylinder unit 6 that rolls on mixing machine main part 1 interior annular face or interior bottom surface.
In this embodiment, the double-wheel rolling mixer has two basic functions of rotating, stirring, mixing, rolling and crushing the material, and finally ensures that the particle size of the dry vibrating material of the siliceous tundish meets the requirement and the material is uniformly and thoroughly mixed.
Wherein, the drive column 2 adds the churning column 3 guarantees the mixed effect of essential rotatory stirring, and trompil barrel unit 4, control tube unit 5 and double round cylinder unit 6 form a material and roll the structure for originally too big material can be rolled to suitable particle diameter at last, in addition the material rolls the structure and has an advantage, just all can all 3 ends of churning column are all installed one, also can install a plurality of the below on the anchor ring of churning column 3, finally guarantee to roll comprehensive, three-dimensional, thorough effect of action.
The perforated cylinder unit 4 comprises a cylinder body 401 for inserting the end face of the mixing column 3, two circular mounting holes 402 arranged on the cylinder wall of the cylinder body 401 and used for being sleeved on the annular surface of the mixing column 3, a port annular inner groove 403 arranged on the cylinder opening of the cylinder body 401, a clamping elastic tube 404 arranged on the port annular inner groove 403 and used for clamping the annular surface of the mixing column 3 inwards, and a thread section arranged on the outer annular surface of the cylinder body 401.
In this embodiment, the perforated cylinder unit 4 is matched with two installation modes of the material rolling structure, so that two installation ports are provided, firstly, when the perforated cylinder unit is installed at the end face of the stirring column 3, the stirring column 3 is inserted from the cylinder port of the cylinder main body 401, and then the double-wheel cylinder unit 6 performs effective material rolling operation on the inner annular surface of the mixer main body 1; secondly, the mixing column 3 is installed on the annular surface of the mixing column 3 at the lowest position, the mixing column 3 is inserted into the circular installation hole 402, and the double-wheel cylinder unit 6 performs effective material rolling operation on the inner bottom surface of the mixing machine main body 1.
The clamping elastic tube 404 is used for clamping the mixing column 3 in the first installation mode, and is idle in the second installation mode, so that the two installation modes are effective and selectable.
The adjusting pipe unit 5 includes an internal threaded pipe 501 screwed to the cylinder body 401, an elastic ring 502 provided on the internal threaded pipe 501 at a position near one end of the circular mounting hole 402 and adapted to clamp the mixing column 3 inserted into the circular mounting hole 402, an annular outer groove 503 provided at one end of the internal threaded pipe 501 and adapted to mount the elastic ring 502, an arc-shaped clamping piece 504 provided outside the annular outer groove 503 and adapted to clamp the elastic ring 502 inward, a radial screw hole 505 provided on the internal threaded pipe 501, an elastic ring clamping stud 506 provided on the radial screw hole 505 and passing through the arc-shaped clamping piece 504, and an end plate 507 provided on an outer end of the elastic ring clamping stud 506 and adapted to clamp the arc-shaped clamping piece 504 inward. The adjusting pipe unit 5 further comprises a radial clamping stud 508 which is arranged on the other side surface of the end head plate 507 and screwed into the radial screw hole 505 through screw threads and is used for matching with the clamping elastic pipe 404 to clamp the annular surface of the mixing column 3 together, a clamping elastic block 509 arranged on the end surface of the radial clamping stud 508, and an elastic ring clamping strip 510 arranged on the arc-shaped clamping piece 504.
In this embodiment, the perforated cylinder unit 4 has two mounting methods on the mixing column 3, and therefore, two sets of mounting and fastening structures are required, one of which is that when the cylinder body 401 is mounted on the end face of the mixing column 3, the internal threaded pipe 501 is rotated to exceed the cylinder opening of the cylinder body 401, and the clamping elastic pipe 404 is completely contained, so that the clamping elastic pipe 404 can frictionally clamp the mixing column 3.
Then, the second clamping action of the first installation mode is performed, that is, the radial clamping stud 508 is screwed into the radial screw hole 505, so that the clamping elastic block 509 clamps the annular surface of the mixing column 3, and thus the total two clamping actions of the first installation mode on the end surface of the mixing column 3 are completed, and the structural stability of the first installation mode is ensured, at this time, the stud 506 for clamping the elastic ring and the elastic ring 502 are idle, but the arc-shaped clamping piece 504 still clamps the elastic ring 502, so that the elastic ring 502 is prevented from falling and losing.
Next, a second rolling application mode of inserting the mixing column 3 into the circular mounting hole 402 is performed, in which the elastic ring clamping stud 506 is inserted into the radial screw hole 505, the arc-shaped clamping piece 504 presses the elastic ring 502 with a greater force than the first mode, the elastic ring 502 presses on the mixing column 3, and finally, the mounting stability of the second mode is ensured, in which the elastic ring clamping strip 510 presses "deeply" on the elastic ring 502, and the elastic ring 502 is deformed in response to the pressing, and in which the radial clamping stud 508 is left idle on the outside as a mixing assisting cylinder.
In this embodiment, the radial clamping studs 508 and the elastic ring clamping studs 506 are used alternately, so that a small pressure is applied when the elastic ring 502 is idle to ensure that the elastic ring 502 does not fall off, while a large pressure is applied when the elastic ring 502 is used, and two different application modes correspond to two different pressures of the arc-shaped clamping pieces 504 on the elastic ring 502, and if a large pressure is applied all the time, the elastic ring 502 is deformed too quickly, which is not preferable.
The two-wheel cylinder unit 6 comprises an installation column 601 inserted into the internal threaded pipe 501, a spring groove 602 arranged on the inner side end surface of the installation column 601, a jacking spring 603 arranged between the spring groove 602 and the outer side end surface of the cylinder main body 401, a T-shaped installation frame 604 arranged on the outer side end surface of the installation column 601, and two rolling wheels 605 which are respectively sleeved at two ends of the T-shaped installation frame 604 and are used for rolling and rolling on the inner annular surface or the inner bottom surface of the mixer main body 1.
In this embodiment, the rolling wheel 605 is sleeved on the T-shaped mounting frame 604, and the two points of axial sliding of the rolling wheel 605 and independent rotation without affecting each other are ensured by the limiting bearings on both sides, and the addition of the jacking spring 603 enables the material rolling action to have sufficient pressure and passing capability on large-particle materials which cannot be ground, and if the double-wheel cylinder unit 6 adopts a rigid rolling structure, the whole rotating structure is easily clamped, even the driving motor is burnt out in case of hard block clamping.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. The high-strength siliceous tundish dry vibrating material is characterized by sequentially comprising the following components in parts by weight:
55-62 parts of siliceous aggregate,
45-50 parts of siliceous fine powder,
25-28 parts of high-aluminum fine powder,
15-16 parts of borax,
12-25 parts of phenolic resin,
10-13 parts of silicon carbide.
2. The high-strength siliceous tundish dry vibration material according to claim 1, wherein: the particle size of the siliceous aggregate is 0.5-10mm, the particle size of the siliceous fine powder is 0.03-0.09mm, and the particle size of the high-alumina fine powder is 0.02-0.08 mm.
3. The high-strength siliceous tundish dry vibration material according to claim 1, wherein: the adhesive also comprises an additive, wherein the additive comprises bentonite, sodium metasilicate, polyvinyl alcohol and methyl silicone oil.
4. A method of preparing the high strength siliceous tundish dry vibratory mass of claim 3, comprising the steps of, in order:
s1, stirring and mixing the siliceous aggregate, the siliceous fine powder, the high-alumina fine powder, the borax and the silicon carbide in a stirrer to obtain a vibration material precursor;
and S2, adding phenolic resin and an additive into the vibration material precursor, and stirring and mixing to obtain the final high-strength siliceous tundish dry vibration material.
5. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 4, wherein the method comprises the following steps: stirring and mixing through a double-wheel rolling mixer, wherein the volume of the double-wheel rolling mixer is 0.5-1.5m3The stirring speed in S1 is 50-80r/min, and the stirring speed in S2 is 60-150 r/min.
6. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 5, wherein the method comprises the following steps: the double round rolls mixes machine and is in including mixing machine main part (1), sets up drive column (2) in mixing machine main part (1), sets up stirring post (3) on drive column (2), cover trompil barrel unit (4) on stirring post (3) terminal surface or the annular face, the spiro union sets up regulating pipe unit (5) on trompil barrel unit (4) to and insert the setting and be in be used for on regulating pipe unit (5) and be in roll double round cylinder unit (6) that roll on mixing machine main part (1) inner ring face or the interior bottom surface.
7. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 6, wherein the method comprises the following steps: the perforated cylinder unit (4) comprises a cylinder body (401) for inserting the end face of the stirring column (3), two circular mounting holes (402) which are arranged on the cylinder wall of the cylinder body (401) and used for being sleeved on the annular surface of the stirring column (3), an annular port inner groove (403) which is arranged on the cylinder opening of the cylinder body (401), a clamping elastic tube (404) which is arranged on the annular port inner groove (403) and used for clamping the annular surface of the stirring column (3) inwards, and a thread section which is arranged on the outer annular surface of the cylinder body (401).
8. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 7, wherein the method comprises the following steps: the adjusting pipe unit (5) comprises an internal thread pipe (501) which is arranged on the cylinder main body (401) in a threaded manner, an elastic ring (502) which is arranged on the internal thread pipe (501) and is close to one end of the circular mounting hole (402) and is used for clamping the stirring column (3) inserted into the circular mounting hole (402), an annular outer groove (503) which is arranged at one end of the internal thread pipe (501) and is used for mounting the elastic ring (502), an arc-shaped clamping sheet (504) which is arranged on the outer side of the annular outer groove (503) and is used for clamping the elastic ring (502) inwards, a radial screw hole (505) which is arranged on the internal thread pipe (501), and an elastic ring clamping stud (506) which is arranged on the radial screw hole (505) and penetrates through the arc-shaped clamping sheet (504), and an end plate (507) provided on the outer end of the elastic ring clamping stud (506) and for clamping the arc-shaped clamping piece (504) inward.
9. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 8, wherein the method comprises the following steps: the adjusting pipe unit (5) further comprises a radial clamping stud (508) which is arranged on the other side surface of the end plate (507) and screwed in through a screw joint in a mode of the radial screw hole (505) and matched with the clamping elastic pipe (404) to clamp the annular surface of the stirring column (3), a clamping elastic block (509) which is arranged on the end surface of the radial clamping stud (508), and an elastic ring clamping strip (510) which is arranged on the arc-shaped clamping piece (504).
10. The method for preparing the high-strength siliceous tundish dry vibration material according to claim 9, wherein the method comprises the following steps: the double-wheel cylinder unit (6) comprises an installation column (601) inserted into the internal threaded pipe (501), a spring groove (602) arranged on the inner side end face of the installation column (601), a jacking spring (603) arranged between the spring groove (602) and the outer side end face of the cylinder main body (401), a T-shaped installation frame (604) arranged on the outer side end face of the installation column (601), and two rolling wheels (605) which are respectively sleeved at two ends of the T-shaped installation frame (604) and used for rolling on the inner ring face or the inner bottom face of the mixer main body (1).
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB470083A (en) * | 1936-02-08 | 1937-08-09 | Adrian Stephen Barton Lansley | Improvements relating to emulsifying and homogenising apparatus |
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