CN110526726A - A kind of high-temperature and wear-proof and preparation method thereof applied to inboard wall of furnace body - Google Patents

A kind of high-temperature and wear-proof and preparation method thereof applied to inboard wall of furnace body Download PDF

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CN110526726A
CN110526726A CN201910963433.XA CN201910963433A CN110526726A CN 110526726 A CN110526726 A CN 110526726A CN 201910963433 A CN201910963433 A CN 201910963433A CN 110526726 A CN110526726 A CN 110526726A
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wear
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CN110526726B (en
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林国强
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YIXING GUOQIANG FURNACE INDUSTRY Co.,Ltd.
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林国强
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Abstract

The invention discloses a kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, the weight proportion of the major ingredient and auxiliary material is 10:2-3;Major ingredient includes the raw material of following parts by weight: 19-25 parts of fused alumina zirconia fine powder, 16-20 parts of carbide fine powder, modified electrofused mullite 12-18 parts, 6-9 parts of composite micro-powder, 18-24 parts of bonding agent;Auxiliary material includes the raw material of following parts by weight: 15-20 parts of aluminium dihydrogen phosphate aqueous solution, 6-9 parts of aluminium hydroxide, 4-5 parts of graphene, 0.5-1 parts of borax, 1.5-2 parts of agglutinant, 4-6 parts of water-reducing agent;The invention also discloses the preparation methods of the high-temperature and wear-proof.The present invention obtains a kind of high-temperature wear-resistant composite material, tool has good wearability, corrosion resistance and abrasion resistance, thermal shock resistance and high-termal conductivity, wearing layer suitable for circulating fluidized bed boiler, it is able to extend the service life of wearing layer, reduces complicated repairing number, maintenance period and cost.

Description

A kind of high-temperature and wear-proof and preparation method thereof applied to inboard wall of furnace body
Technical field
The invention belongs to wear-resistant material technical fields, and in particular, to a kind of high-temperature wearable material applied to inboard wall of furnace body Material and preparation method thereof.
Background technique
Circulating fluidized bed boiler is a kind of New-type boiler of high-efficiency and low-pollution, it has adaptation coal extensive, can be burnt bad The characteristics of matter coal, on-load ability is strong, flameholding.And its low-temperature burning characteristic, can effectively check nitrogen oxides Discharge, adds scoria lime stone energy desulfuration in furnace, therefore, it is the essential furnace that pure condensate gas formula small power plant transform comprehensive utilization type power plant as Type and the essential type of furnace of Xin Shang steam power plant.But the special furnace wall liner of this type of furnace proposes very high requirement to material, Combustion chamber is the important position of circulating fluidized bed boiler, and operating temperature here is 800-1000 DEG C, fluidizing velocity 4- 6m/s, although fluidizing velocity is not high, here for concentrated phase area and granularity it is big, serious wear, therefore inboard wall of furnace body here will select With the material of high-strength abrasion-proof fire resistant.
It is resistance to that the Chinese invention patent of Patent No. CN200810049223.1 discloses a kind of electric power boiler flue high temperature Composite coating is ground, high-performance is added using the method for particle enhancing and fiber reinforced coupling using the principle of Modern Composite Materials Raw material makees reinforcing agent with the high-strength particle of hard, material is greatly improved intensity and toughness using composite nano-powder as bonding agent, The high-temperature behavior for greatly improving material forms the network combined structure of mullite in hot conditions, and the high volume for improving material is steady Qualitative and wear-resisting property, prolongs the service life.But the wear-resistant material due to using composite nano-powder as bonding agent, with The compatibility of refractory material matrix is not high, and the material made still cannot meet the requirements the requirement of furnace body in performance.
Summary of the invention
The high-temperature and wear-proof and preparation method thereof that the purpose of the present invention is to provide a kind of applied to inboard wall of furnace body, the height The major ingredient of warm wear-resistant material includes fused alumina zirconia fine powder, carbide fine powder, modified electrofused mullite and composite micro-powder, and material can be improved Bulk density, intensity and the thermal coefficient of material reduce aobvious porosity;The affinity of the agglutinant energy reinforcing material of use;In auxiliary material Material heat-resisting quantity, stability and high-termal conductivity can be further increased containing aluminium hydroxide, graphene etc.;The present invention uses Special homogenizing device handles major ingredient and auxiliary material, and the particle in material can not only be made to be uniformly distributed, and can arrange Air in material out, and the particle in material not will receive destruction, stablize each feed particles can and play a role;This hair It is bright to obtain a kind of high-temperature wear-resistant composite material, tool has good wearability, corrosion resistance and abrasion resistance, thermal shock resistance and High-termal conductivity is able to extend the service life of wearing layer suitable for the wearing layer of circulating fluidized bed boiler, reduces complicated repairing Number, maintenance period and cost.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, the weight proportion of the major ingredient and auxiliary material For 10:2-3;
The major ingredient includes the raw material of following parts by weight: 19-25 parts of fused alumina zirconia fine powder, 16-20 parts of carbide fine powder, modified electric smelting 12-18 parts of mullite, 6-9 parts of composite micro-powder, 18-24 parts of bonding agent;
The composite micro-powder includes silicon powder and alumina powder, and the mass ratio of silicon powder and alumina powder is 3:2;
The bonding agent is aluminate cement;
The auxiliary material includes the raw material of following parts by weight: 15-20 parts of aluminium dihydrogen phosphate aqueous solution, 6-9 parts of aluminium hydroxide, graphene 4-5 parts, 0.5-1 parts of borax, 1.5-2 parts of agglutinant, 4-6 parts of water-reducing agent;
The water-reducing agent is sodium tripolyphosphate and calcium lignosulfonate according to the compound that mass ratio is that 10:4-5 is compounded.
Further, the agglutinant is in silicate, boric acid, fine silica powder, aluminium oxide, silica solution and glycerol One or more of combinations.
Further, the modified electrofused mullite is prepared by the following method:
Electrofused mullite is mixed for 1:0.6-0.7 with silica solution according to mass ratio, 25- is stirred with 120r/min at room temperature 30min is filtered, and product is dried 20h in 60 DEG C of vacuum ovens, obtains modified electrofused mullite.
A kind of preparation method of the high-temperature and wear-proof applied to inboard wall of furnace body, includes the following steps:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 10-15min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 10-15min, is saved with plastic barrel, seals Packaging;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot of homogenizing device together, rotary threaded column Trapezoid block is pushed until the material pot that is fixedly clamped, opens the motor of the first shaft connection, in homogenization in homogenizing device 150-160s takes out mixed material;
4th step, using ramming method, by said mixture material ramming, institute must wearing layer in circulating fluidized bed boiler in 120min Position is greater than under conditions of 90% prior to 25 DEG C of temperature and humidity and conserves 3d, finally dries at 110 DEG C for 24 hours, in inboard wall of furnace body Generate high-temperature and wear-proof.
Further, homogenizing device described in third step, including support device, bogey and fixed device, carrying dress It sets and is installed in support device, fixed device is installed on bogey;
Support device includes pedestal, and the top surface edge position of pedestal is installed with first boss, and the surface of first boss is through peace Equipped with the first shaft, the other end of the first shaft is fixed with link block, and one end of link block is fixed on the first shaft, the other end It is installed on bogey;Two side surfaces of pedestal are uniformly installed with the first connecting column, are fixed with first on the first connecting column Connecting rod, the first connecting rod other end are connected with second connecting rod, and the second connecting rod other end is connected with third connecting rod, and third connects The other end of bar is fixed on bogey;
Bogey includes the weight tray square framework fixed with weight tray upper surface is fixed on, the following table of weight tray Face marginal position is fixed with second boss, and the surface of second boss is fixed with the second shaft, and the surface of the second shaft is equipped with connection Lever, interlocking bar one end and the second shaft are rotatablely connected, and the other end and link block are rotatablely connected;The both side surface of weight tray is equal Cloth is installed with the second connecting column, is fixed with third connecting rod on the second connecting column;The upper surface of weight tray opens up along its length There are two parallel bar limit slots, the surface of one block of side plate of square framework is vertically and fixedly provided with limited post;Weight tray Upper surface is fixed with the first spring and gag lever post, and the upper surface of weight tray is provided with the first tapped through hole;
Linkage includes trapezoid block, threaded post and sliding panel, and the surface of trapezoid block offers the second screw thread along short transverse and leads to Hole and circular through hole, circular through hole and gag lever post cooperate, and the second tapped through hole is threadedly engaged with threaded post, and threaded post runs through second Tapped through hole is installed on weight tray;Trapezoid block is installed on weight tray by the first spring;The lower surface of sliding panel is solid If limit raised line is slidably matched with bar limit slot, and the surface of sliding panel is fixed with position-limiting drum, position-limiting drum there are two raised line is limited Cooperate with limited post, position-limiting drum is sheathed on limited post;The side of position-limiting drum is arranged with second spring, and second spring one end is fixed In the surface of sliding panel, the other end is fixed on the inner surface of square framework.
Further, first shaft by bearing through be installed in first boss and one end of the first shaft connect There is motor.
Further, square framework be installed with limited post side plate is vertical with bar limit slot and limited post is towards the side On the inside of plate.
Further, first tapped through hole is coaxially set with the first spring.
Further, the threaded post is installed on weight tray by the first tapped through hole.
Further, the surface of weight tray is fixed in one end of first spring, and the other end is fixed on trapezoid block Surface, the first spring pocket are set to the surface of threaded post and are not in contact with it, face and the weight tray phase of the smaller quadrangle of trapezoid block It is right.
Beneficial effects of the present invention:
It include modified electrofused mullite in major ingredient of the invention, after electrofused mullite is handled by silica solution, particle is by one layer Silicon dioxide film wraps, and silica solution plugs the stomata on mullite surface, in sintering process, the SiO on mullite surface2Meeting Is combined with the matrix generation in material, improve the compressive resistance of material, so that material is with lower apparent porosity and higher Compressive resistance;
The present invention is handled the mixture of major ingredient and auxiliary material using special homogenizing device, and mixed material is placed in homocline In the material pot of device, rotary threaded column pushes trapezoid block until the material pot that has been fixedly clamped, opens the connection of the first shaft Motor, under the drive of the motor, the left and right that entire bogey drives material pot to do in the horizontal direction vibrate up and down, and can lead to The frequency for crossing adjustment motor realizes the adjustment of vibration frequency;Under high-frequency vibration, blank particle is mutually hit material, wherein Dynamic friction instead of the static friction between particle, blank becomes the particle with mobility, due to obtaining the energy of vibration input, Particle inside blank with the mobility in three-dimensional space, keep particle intensive and be filled in each corner of material pot and The air of material internal is squeezed away, therefore, homocline processing is carried out using the mode of vibration of the homogenizing device, on the one hand, energy Enough so that particle is uniformly distributed in material system, and squeezes the air in material system and remove, still further aspect, material Particle will not be destroyed, and then will not influence the performances such as the wear-resisting of material, high temperature resistant after molding, realize homogenize process, so that Wear-resistant material can give full play to the performance of each raw material;
Major ingredient of the invention includes fused alumina zirconia fine powder, carbide fine powder, modified electrofused mullite and composite micro-powder, and material can be improved Bulk density, intensity and the thermal coefficient of material reduce aobvious porosity;The affinity of the agglutinant energy reinforcing material of use;In auxiliary material Material heat-resisting quantity, stability and high-termal conductivity can be further increased containing aluminium hydroxide, graphene etc.;The present invention uses Special homogenizing device handles major ingredient and auxiliary material, and the particle in material can not only be made to be uniformly distributed, and can arrange Air in material out, and the particle in material not will receive destruction, stablize each feed particles can and play a role;This hair It is bright to obtain a kind of high-temperature wear-resistant composite material, tool has good wearability, corrosion resistance and abrasion resistance, thermal shock resistance and High-termal conductivity is able to extend the service life of wearing layer suitable for the wearing layer of circulating fluidized bed boiler, reduces complicated repairing Number, maintenance period and cost.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is the structural schematic diagram of homogenizing device of the present invention;
Fig. 2 is the structural schematic diagram of the support device of homogenizing device of the present invention;
Fig. 3 is the structural schematic diagram of the bogey of homogenizing device of the present invention;
Fig. 4 is the partial structural diagram of homogenizing device of the present invention;
Fig. 5 is the partial structural diagram of Fig. 4;
Fig. 6 is the partial structural diagram of Fig. 4.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected Range.
A kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, the weight proportion of major ingredient and auxiliary material For 10:2-3;
Wherein, major ingredient includes the raw material of following parts by weight: 19-25 parts of fused alumina zirconia fine powder, 16-20 parts of carbide fine powder, modified electricity Melt mullite 12-18 parts, 6-9 parts of composite micro-powder, 18-24 parts of bonding agent;
Auxiliary material includes the raw material of following parts by weight: 15-20 parts of the aluminium dihydrogen phosphate aqueous solution (quality of aluminium dihydrogen phosphate aqueous solution point Number for 80%), 6-9 parts of aluminium hydroxide, 4-5 parts of graphene, 0.5-1 parts of borax, 1.5-2 parts of agglutinant, 4-6 parts of water-reducing agent;
Wherein, composite micro-powder includes silicon powder and alumina powder, and the mass ratio of silicon powder and alumina powder is 3:2;It is multiple Closing micro mist plays the role of promoting corundum products sintering, can promote the combination of particle and matrix, reduces the stomata of product, and can Enhance fillibility, improve application property, reduces apparent porosity;
Bonding agent is aluminate cement;
Water-reducing agent is sodium tripolyphosphate and calcium lignosulfonate according to the compound that mass ratio is that 10:4-5 is compounded;
Agglutinant is the combination of one or more of silicate, boric acid, fine silica powder, aluminium oxide, silica solution and glycerol;
The modified electrofused mullite is prepared by the following method:
It is 1:0.6-0.7 by electrofused mullite and silica solution according to mass ratio (solid content of silica solution is 25wt%, PH=9.0) Mixing stirs 25-30min at room temperature with 120r/min, filters, and product is dried 20h in 60 DEG C of vacuum ovens, is obtained Modified electrofused mullite;
After being handled by silica solution, electrofused mullite is wrapped by layer of silicon dioxide film, and silica solution plugs mullite surface Stomata, in sintering process, the SiO on mullite surface2It can be combined with the matrix generation in material, improve the resistance to pressure of material Degree, so that material has lower apparent porosity and higher compressive resistance;
The preparation method of the wear-resistant material, includes the following steps:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 10-15min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 10-15min, is saved with plastic barrel, seals Packaging;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot 4 of homogenizing device together, rotates screw thread Column 32 pushes trapezoid block 31 until the material pot 4 that is fixedly clamped, opens the motor of the first shaft 13 connection, in equal in homogenizing device Matter handles 150-160s, takes out mixed material;
4th step, using ramming method, by said mixture material ramming, institute must wearing layer in circulating fluidized bed boiler in 120min Position is greater than under conditions of 90% prior to 25 DEG C of temperature and humidity and conserves 3d, finally dries at 110 DEG C for 24 hours, in inboard wall of furnace body Generate high-temperature and wear-proof.
It please refers to shown in Fig. 1-6, homogenizing device described in third step, as shown in Figure 1, including support device 1, bogey 2 are installed in support device 1 with fixed device 3, bogey 2, and fixed device 3 is installed on bogey 2;
As shown in Fig. 2, support device 1 includes pedestal 11, the top surface edge position of pedestal 11 is installed with first boss 12, first The surface of boss 12 is through the first shaft 13 is equipped with, and preferably, the first shaft 13 is run through by bearing is installed on first boss On 12 and one end of the first shaft 13 is connected with motor, and the other end of the first shaft 13 is fixed with link block 14, link block 14 One end is fixed on the first shaft 13, and the other end is installed on bogey 2;Two side surfaces of pedestal 11 are uniformly installed with One connecting column 15 is fixed with first connecting rod 16 on first connecting column 15, and 16 other end of first connecting rod is connected with second connecting rod 17,17 other end of second connecting rod is connected with third connecting rod 18, and the other end of third connecting rod 18 is fixed on bogey 2;
As shown in figure 3, bogey 2 includes the square framework fixed with 21 upper surface of weight tray is fixed on of weight tray 21 22, the lower surface edge position of weight tray 21 is fixed with second boss 23, and the surface of second boss 23 is fixed with the second shaft 24, the surface of the second shaft 24 is equipped with interlocking bar 25, and 25 one end of interlocking bar and the second shaft 24 are rotatablely connected, the other end and company Connect the rotation connection of block 14;The both side surface of weight tray 21 is uniformly installed with the second connecting column 26, fixes on the second connecting column 26 There is third connecting rod 18;The upper surface of weight tray 21 offers two parallel bar limit slots 27, square along its length The surface of one block of side plate of framework 22 is vertically and fixedly provided with limited post 28, and the side plate is vertical with bar limit slot 27 and 28 court of limited post To the side plate interior sides;The upper surface of weight tray 21 is further fixed on the first spring 291 and gag lever post 292, weight tray 21 it is upper Surface is also provided with the first tapped through hole 290, and preferably, the first tapped through hole 290 is coaxially set with the first spring 291;
As Figure 4-Figure 6, linkage 3 includes trapezoid block 31, threaded post 32 and sliding panel 33, and the surface of trapezoid block 31 is along height Direction offers the second tapped through hole 3101 and circular through hole 3102, and circular through hole 3102 and gag lever post 29 cooperate, the second screw thread Through-hole 3101 is threadedly engaged with threaded post 32, and threaded post 32 is installed on weight tray 21 through the second tapped through hole 3101, compared with Excellent, threaded post 32 is installed on weight tray 21 by the first tapped through hole 290, and the top of threaded post 32 is fixed with handle 3201, realize that threaded post 32 rotates by rotating handles 3201;Trapezoid block 31 is installed on weight tray 21 by the first spring 28 On, specifically, the surface of weight tray 21 is fixed in one end of the first spring 291, the other end is fixed on the surface of trapezoid block 31, It should be noted that the first spring 291 is sheathed on the surface of threaded post 32 but is not in contact with it, the smaller quadrangle of trapezoid block 31 Face and weight tray 21 are opposite;The lower surface of sliding panel 33 is fixed there are two raised line 3301 is limited, and limits raised line 3301 and bar shaped Limiting slot 27 is slidably matched, and the surface of sliding panel 33 is fixed with position-limiting drum 3302, and position-limiting drum 3302 and limited post 28 cooperate, limit Cylinder 3302 is sheathed on limited post 28;The side of position-limiting drum 3302 is also arranged with second spring 3303,3303 one end of second spring It is fixed on the surface of sliding panel 33, the other end is fixed on the inner surface of square framework 22;
The working principle and mode of the homogenizing device:
When its rotation of the motor driven of the first shaft 13 connection, the link block 14 being fixed thereon is driven to rotate, due to interlocking bar 25 and three connecting rods (first connecting rod 16, second connecting rod 17 and third connecting rod 18) transmission effect so that interlocking bar 25 drive The frame that weight tray 21 and square framework 22 form does left and right in the horizontal direction and vibrates up and down;
Material pot 4 is placed on weight tray 21 and between trapezoid block 31 and sliding panel 33, by rotary threaded column 32, by It is threadedly engaged in trapezoid block 31 and threaded post 32 and under limit of gag lever post 292 or so, trapezoid block 31 can move along the vertical direction Dynamic, when trapezoid block 31 moves down, the inclined-plane of trapezoid block 31 squeezes material pot 4, and material pot 4 is again by squeezing sliding shoe 33, it moves sliding shoe 33 outward and constantly compresses second spring 3303, in the extruding and second spring of trapezoid block 31 Under 3304 shape inotropic action, material pot 4 is gradually fixed clamping, so that entire material pot 4 is fixed on bogey 2 On;
Material is placed in material pot 4, rotary threaded column 32 pushes trapezoid block 31 until the material pot 4 that has been fixedly clamped, is opened The motor of the first shaft 13 connection is opened, under the drive of the motor, entire bogey 2 drives material pot 4 to do in the horizontal direction Left and right vibrates up and down, and the adjustment of vibration frequency can be realized by adjusting the frequency of motor;Material under high-frequency vibration, Blank particle is mutually hit, and instead of the static friction between particle, blank becomes the particle with mobility for dynamic friction therein, by In obtaining the energy of vibration input, particle, with the mobility in three-dimensional space, keeps particle intensive and fills out inside blank It fills and squeezes away the air of material internal in each corner of material pot, therefore, using the mode of vibration of the homogenizing device Carry out homocline processing, on the one hand, enable to particle to be uniformly distributed in material system, and squeeze the air in material system It removes, the particle of still further aspect, material will not be destroyed, and then will not influence the property such as the wear-resisting of material, high temperature resistant after molding Can, it realizes homogenize process, wear-resistant material is enabled to give full play to the performance of each raw material.
Embodiment 1
The weight proportion of a kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, major ingredient and auxiliary material is 10: 2;
Major ingredient includes the raw material of following parts by weight: 19 parts of fused alumina zirconia fine powder, 16 parts of carbide fine powder, modified electrofused mullite 12 Part, 6 parts of composite micro-powder, 18 parts of bonding agent;
Auxiliary material includes the raw material of following parts by weight: 15 parts of aluminium dihydrogen phosphate aqueous solution, 6 parts of aluminium hydroxide, 4 parts of graphene, borax 0.5 part, 1.5 parts of agglutinant, 4 parts of water-reducing agent;
The preparation method of the wear-resistant material, includes the following steps:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 10min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 10min, is saved with plastic barrel, sealing packet Dress;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot 4 of homogenizing device together, rotates screw thread Column 32 pushes trapezoid block 31 until the material pot 4 that is fixedly clamped, opens the motor of the first shaft 13 connection, in equal in homogenizing device Matter handles 150s, takes out mixed material;
Mixed material is prepared into 20cm × 5cm × 5cm test fritter by molding by the 4th step, dry at 100 DEG C 24h。
Embodiment 2
The weight proportion of a kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, major ingredient and auxiliary material is 10: 2.5;
Major ingredient includes the raw material of following parts by weight: 22 parts of fused alumina zirconia fine powder, 18 parts of carbide fine powder, modified electrofused mullite 14 Part, 7.5 parts of composite micro-powder, 21 parts of bonding agent;
Auxiliary material includes the raw material of following parts by weight: 18 parts of aluminium dihydrogen phosphate aqueous solution, 7.5 parts of aluminium hydroxide, 4.5 parts of graphene, 0.7 part of borax, 1.8 parts of agglutinant, 5 parts of water-reducing agent;
The preparation method of the wear-resistant material, includes the following steps:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 12min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 12min, is saved with plastic barrel, sealing packet Dress;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot 4 of homogenizing device together, rotates screw thread Column 32 pushes trapezoid block 31 until the material pot 4 that is fixedly clamped, opens the motor of the first shaft 13 connection, in equal in homogenizing device Matter handles 155s, takes out mixed material;
Mixed material is prepared into 20cm × 5cm × 5cm test fritter by molding by the 4th step, dry at 100 DEG C 24h。
Embodiment 3
The weight proportion of a kind of high-temperature and wear-proof applied to inboard wall of furnace body, including major ingredient and auxiliary material, major ingredient and auxiliary material is 10: 3;
Major ingredient includes the raw material of following parts by weight: 25 parts of fused alumina zirconia fine powder, 20 parts of carbide fine powder, modified electrofused mullite 18 Part, 9 parts of composite micro-powder, 24 parts of bonding agent;
Auxiliary material includes the raw material of following parts by weight: 20 parts of aluminium dihydrogen phosphate aqueous solution, 9 parts of aluminium hydroxide, 5 parts of graphene, borax 1 Part, 2 parts of agglutinant, 6 parts of water-reducing agent;
The preparation method of the wear-resistant material, includes the following steps:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 15min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 15min, is saved with plastic barrel, sealing packet Dress;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot 4 of homogenizing device together, rotates screw thread Column 32 pushes trapezoid block 31 until the material pot 4 that is fixedly clamped, opens the motor of the first shaft 13 connection, in equal in homogenizing device Matter handles 160s, takes out mixed material;
Mixed material is prepared into 20cm × 5cm × 5cm test fritter by molding by the 4th step, dry at 100 DEG C 24h。
Comparative example 1
Change the modification electrofused mullite in embodiment 1 into common electrofused mullite, remaining preparation process is constant.
Comparative example 2
In embodiment 1 in preparation method third step, major ingredient and auxiliary material are mixed by common mode.
Comparative example 3
Common boiler wear-resistant material.
Following performance test is done to test material made from embodiment 1-3 and comparative example 1-3:
Hardness is measured according to GB/T 5766-2007;Flexural strength and compression strength are tested according to GB/T 3001-2000;By GB The regulation of 5763-2008, test specimen rubs when measuring 100 DEG C, 200 DEG C, 300 DEG C respectively under conditions of 0.98MPa, 500r/min Power and wear rate are wiped, test result is as follows table:
It is found that the Rockwell hardness of wear-resistant material made from embodiment 1-3 be 63.5-64.2, flexural strength 20.6-22.3MPa, Compression strength is 125-129MPa, compared to comparative example 1, illustrates that the electrofused mullite handled by silica solution can improve material Compressive resistance, so that material has higher compressive resistance;As the temperature rises, the friction factor of material and wear rate variation Very little, compared to comparative example 2, special homogenizing device handles major ingredient and auxiliary material through the invention, enables to raw material Each particle is uniformly distributed in material, moreover it is possible to exhaust the air in material, each feed particles is made preferably to play its effect;This hair A kind of bright composite material for obtaining high-temperature wearable is suitable for inboard wall of furnace body.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (10)

1. a kind of high-temperature and wear-proof applied to inboard wall of furnace body, which is characterized in that including major ingredient and auxiliary material, the major ingredient and auxiliary The weight proportion of material is 10:2-3;
The major ingredient includes the raw material of following parts by weight: 19-25 parts of fused alumina zirconia fine powder, 16-20 parts of carbide fine powder, modified electric smelting 12-18 parts of mullite, 6-9 parts of composite micro-powder, 18-24 parts of bonding agent;
The composite micro-powder includes silicon powder and alumina powder, and the mass ratio of silicon powder and alumina powder is 3:2;
The bonding agent is aluminate cement;
The auxiliary material includes the raw material of following parts by weight: 15-20 parts of aluminium dihydrogen phosphate aqueous solution, 6-9 parts of aluminium hydroxide, graphene 4-5 parts, 0.5-1 parts of borax, 1.5-2 parts of agglutinant, 4-6 parts of water-reducing agent;
The water-reducing agent is sodium tripolyphosphate and calcium lignosulfonate according to the compound that mass ratio is that 10:4-5 is compounded.
2. a kind of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 1, which is characterized in that the sintering Agent is the combination of one or more of silicate, boric acid, fine silica powder, aluminium oxide, silica solution and glycerol.
3. a kind of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 1, which is characterized in that the modification Electrofused mullite is prepared by the following method:
Electrofused mullite is mixed for 1:0.6-0.7 with silica solution according to mass ratio, 25- is stirred with 120r/min at room temperature 30min is filtered, and product is dried 20h in 60 DEG C of vacuum ovens, obtains modified electrofused mullite.
4. a kind of preparation method of the high-temperature and wear-proof applied to inboard wall of furnace body, which comprises the steps of:
The first step mixes each raw material of major ingredient according to parts by weight, and 150r/min stirs 10-15min, sealed package;
Second step mixes each raw material of auxiliary material according to parts by weight, and 200r/min stirs 10-15min, is saved with plastic barrel, seals Packaging;
Third step mixes major ingredient and auxiliary material according to quality proportioning, is added in the material pot (4) of homogenizing device together, rotates spiral shell Line column (32) pushes trapezoid block (31) until being fixedly clamped material pot (4), opens the motor of the first shaft (13) connection, Yu Jun Expect homogenization 150-160s in device, takes out mixed material;
4th step, using ramming method, by said mixture material ramming, institute must wearing layer in circulating fluidized bed boiler in 120min Position is greater than under conditions of 90% prior to 25 DEG C of temperature and humidity and conserves 3d, finally dries at 110 DEG C for 24 hours, in inboard wall of furnace body Generate high-temperature and wear-proof.
5. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 4, feature exist In, homogenizing device described in third step, including support device (1), bogey (2) and fixed device (3), bogey (2) It is installed on support device (1), fixed device (3) are installed on bogey (2);
Support device (1) includes pedestal (11), and the top surface edge position of pedestal (11) is installed with first boss (12), and first is convex Through being equipped with the first shaft (13), the other end of the first shaft (13) is fixed with link block (14) on the surface of platform (12), connection One end of block (14) is fixed on the first shaft (13), and the other end is installed on bogey (2);Two side tables of pedestal (11) Face is uniformly installed with the first connecting column (15), is fixed on the first connecting column (15) first connecting rod (16), and first connecting rod (16) is another One end is connected with second connecting rod (17), and second connecting rod (17) other end is connected with third connecting rod (18), third connecting rod (18) the other end is fixed on bogey (2);
Bogey (2) includes weight tray (21) and the square framework for being fixed on the fixation of weight tray (21) upper surface (22), the lower surface edge position of weight tray (21) is fixed with second boss (23), and the surface of second boss (23) is fixed with Second shaft (24), the surface of the second shaft (24) are equipped with interlocking bar (25), interlocking bar (25) one end and the second shaft (24) Rotation connection, the other end and link block (14) are rotatablely connected;The both side surface of weight tray (21) is uniformly installed with the second connection Column (26) is fixed with third connecting rod (18) on the second connecting column (26);The upper surface of weight tray (21) opens up along its length There are two parallel bar limit slots (27), the surface of one block of side plate of square framework (22) is vertically and fixedly provided with limited post (28);The upper surface of weight tray (21) is fixed with the first spring (291) and gag lever post (292), the upper table of weight tray (21) Face is provided with the first tapped through hole (290);
Linkage (3) includes trapezoid block (31), threaded post (32) and sliding panel (33), and the surface of trapezoid block (31) is along height side To the second tapped through hole (3101) and circular through hole (3102) is offered, circular through hole (3102) and gag lever post (29) cooperate, the Two tapped through holes (3101) are threadedly engaged with threaded post (32), and threaded post (32) is installed on through the second tapped through hole (3101) and holds On load floor (21);Trapezoid block (31) is installed on weight tray (21) by the first spring (28);The following table of sliding panel (33) Face is fixed there are two raised line (3301) are limited, and limit raised line (3301) is slidably matched with bar limit slot (27), sliding panel (33) Surface be fixed with position-limiting drum (3302), position-limiting drum (3302) and limited post (28) cooperate, and position-limiting drum (3302) is sheathed on limit On column (28);The side of position-limiting drum (3302) is arranged with second spring (3303), and sliding is fixed in second spring (3303) one end The surface of plate (33), the other end are fixed on the inner surface of square framework (22).
6. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 5, feature exist In, first shaft (13) by bearing through being installed on first boss (12) and one end of the first shaft (13) is connected with Motor.
7. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 5, feature exist In side plate that, square framework (22) is installed with limited post (28), and limited post (28) vertical with bar limit slot (27) was towards should Side plate interior sides.
8. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 5, feature exist In first tapped through hole (290) is coaxially set with the first spring (291).
9. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 5, feature exist In the threaded post (32) is installed on weight tray (21) by the first tapped through hole (290).
10. a kind of preparation method of high-temperature and wear-proof applied to inboard wall of furnace body according to claim 5, feature exist In the surface of weight tray (21) is fixed in one end of first spring (291), and the other end is fixed on the table of trapezoid block (31) Face, the first spring (291) are sheathed on the surface of threaded post (32) and are not in contact with it, the face of trapezoid block (31) smaller quadrangle with Weight tray (21) is opposite.
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