CN110595210A - Surface-modified pretreated fireproof anchoring brick and preparation process thereof - Google Patents
Surface-modified pretreated fireproof anchoring brick and preparation process thereof Download PDFInfo
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- CN110595210A CN110595210A CN201910871108.0A CN201910871108A CN110595210A CN 110595210 A CN110595210 A CN 110595210A CN 201910871108 A CN201910871108 A CN 201910871108A CN 110595210 A CN110595210 A CN 110595210A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a surface modification pretreatment refractory anchoring brick and a preparation process thereof, at present, generally, in order to prolong the service life of a furnace lining, all performances of the anchoring brick are generally required to be consistent with the material of a lining material, but in the actual operation, based on the requirements of cost and actual production, the anchoring brick and the lining material are generally prepared by using two different materials, so that in the high-temperature or cold furnace process, the local stress is not uniform due to inconsistent expansion and contraction between the anchoring brick and the lining material, and the anchoring brick is broken; aiming at the problem, a surface modification pretreatment fireproof anchoring brick and a preparation process thereof are designed, wherein a layer of modified coating is coated on the surface of the anchoring brick; the process design of the invention is reasonable, not only can effectively realize the stress buffering between the anchoring brick body and the lining material, avoid the anchoring brick from being fractured, but also improves the structural strength of the anchoring brick body, and has higher practicability.
Description
Technical Field
The invention relates to the technical field of anchoring bricks, in particular to a surface modification pretreatment fireproof anchoring brick and a preparation process thereof.
Background
The anchoring brick is also called hanging brick, and is made by selecting high-quality raw materials, performing mechanical pressing molding or pouring molding, and then performing high-temperature sintering. The anchoring brick plays an important role in building the furnace roof and the straight wall of the industrial furnace, and can improve the integrity of building lining bodies such as refractory castable, ramming mass, plastic mass and the like. In order to prolong the service life of the furnace lining, it is generally required to ensure that various properties of the anchoring bricks are consistent with the material quality and the expansion and contraction of the lining material, so that the anchoring bricks can be tightly combined with the lining material, and the occurrence of fracture caused by nonuniform local stress due to inconsistent expansion and contraction is reduced in the high-temperature or cold furnace process. However, in actual masonry, due to the variety of lining materials, it is difficult to ensure uniform consistency of the lining materials and the anchoring bricks, which brings inconvenience to people.
In view of the above situation, we have designed a surface-modified pretreated refractory anchoring brick and a preparation process thereof, and need to realize stress buffering between an anchoring brick body and a lining material, which is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a surface modification pretreatment fireproof anchoring brick and a preparation process thereof, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the surface-modified pretreated fire-resistant anchoring brick comprises an anchoring brick body and a modified coating, wherein the modified coating is coated on the surface of the anchoring brick body.
At present, in order to prolong the service life of a furnace lining, various performances of an anchoring brick are generally required to be consistent with the material of a lining material, but in actual operation, based on the requirements of cost and actual production, the anchoring brick and the lining material are generally prepared by two different materials, so that in the process of high temperature or cold furnace, local stress is not uniform due to inconsistent expansion and contraction between the anchoring brick and the lining material, and the anchoring brick is broken; aiming at the problem, a surface modification pretreatment fireproof anchoring brick and a preparation process thereof are designed, wherein a layer of modification coating is coated on the surface of the anchoring brick, and the modification coating can be used as a buffer layer, so that the anchoring brick is prevented from being in direct contact with a lining material, the condition of uneven local stress is reduced, and the service life of the anchoring brick is prolonged.
Preferably, the modified coating is any one or a mixture of more of petroleum asphalt, coal asphalt, carbon-containing resin coating, waterproof coating and strippable coating.
Preferably, the modified coating comprises the following raw material components: 30-90% of petroleum asphalt, 20-90% of coal asphalt, 0.5-60% of carbon-containing resin coating, 3-90% of waterproof coating and 3-75% of strippable coating.
The method can be actually operated by two schemes, wherein the first scheme is that any one of petroleum asphalt, coal asphalt, carbon-containing resin coating, waterproof coating and strippable coating is independently used as a modified coating and is coated on the anchoring brick; blending petroleum asphalt, coal asphalt, carbon-containing resin coating, waterproof coating and strippable coating according to a proper proportion to prepare a modified coating to be coated on the anchoring brick; the present invention is not limited to the above materials, and can be operated as long as it is an organic coating that can be carbonized or burned at a high temperature.
Preferably, the thickness of the modified coating is 0.1-10 mm.
Preferably, the preparation process of the surface modification pretreatment refractory anchoring brick comprises the following steps:
1) preparing materials;
2) coating to form a modified coating;
3) maintaining;
4) drying;
5) and obtaining the refractory anchoring brick.
Preferably, the method comprises the following steps:
1) preparing an anchoring brick body for later use;
2) weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
3) taking the anchoring brick body and the mixed material prepared in the step 1), and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 4-50 ℃, and the coating thickness is 0.1-10 mm;
4) and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 6-48h in an environment of 4-90 ℃, wherein the environment humidity is 15-95%;
5) and (3) drying: taking the cured anchoring brick body, standing and drying at 15-90 ℃, wherein the standing time is 6-48 h;
6) and obtaining the refractory anchoring brick.
Preferably, the method comprises the following steps:
1) preparing an anchoring brick body for later use; preparing each material in the step 1), and checking the operation condition of a required device, so as to facilitate subsequent production operation;
2) weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use; step 2), mixing and stirring the raw materials to prepare a mixed material for coating the modified coating;
3) coating: taking the anchoring brick body and the mixed material prepared in the step 1), and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 20-50 ℃, and the coating thickness is 0.1-10 mm; step 3) coating the modified coating material on the surface of the anchoring brick body by modifying the adhesive force of the coating material, so that a film is formed on the surface of the anchoring brick body and is uniformly distributed; during operation, the modified coating material has good fluidity when the coating temperature is high, and the prepared coating has low thickness and poor environmental friendliness; when the coating temperature is lower, the modified coating material is easy to agglomerate and poor in uniformity, so that the coating temperature in the step 3) is designed to be 20-50 ℃; in the step 3), a layer-by-layer coating process is adopted, so that the adjustability of the thickness of the modified coating on the surface of the anchoring brick body is realized, and the practicability is better;
4) and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 12-24h in an environment of 30-50 ℃, wherein the ambient humidity is 50-80%; step 4) performing maintenance operation, wherein the modified coating is not completely combined when coated on the anchoring brick body, so that the modified coating is maintained, and a film which is uniformly distributed is formed on the surface of the anchoring brick body and then firmly adhered to the surface of the anchoring brick body by virtue of the permeability and hardening capacity of the coating material, and the modified coating generates certain strength; meanwhile, when in operation, the environmental humidity is set to be 50-80%, so that the maintenance effect can be effectively improved;
5) and (3) drying: taking the cured anchoring brick body, standing and drying at the temperature of 30-50 ℃, wherein the standing time is 12-24 h; drying in the step 5), drying and completely hardening the modified coating material at a certain temperature, fully realizing development of strength and facilitating packaging and stacking of subsequent processes;
6) and obtaining the refractory anchoring brick.
Preferably, in the step 3), a layer of mixed material is firstly brushed and coated during coating, the brushing and coating time is 50-180s, and the mixed material is placed for 5-60 min; and continuously brushing the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness.
Optimally, in the step 3), a layer of mixed material is sprayed by a spray gun during coating, the spraying time is 20-180s, and the mixture is placed for 5-60 min; and continuing spraying the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness.
Preferably, in the step 3), the anchoring brick body is firstly soaked in the mixed material during coating, the soaking time is 10-120s, and the mixture is placed for 5-60 min; and (4) continuing to perform dipping after the placement, and repeating the steps until the formed modified coating reaches the preset thickness.
In the technical scheme, the modified coating can be coated by brush coating, spray gun spraying, dipping and the like respectively during operation, and is not limited to the above modes; in order to regulate and control the thickness of the modified coating, a layer-by-layer coating process is adopted, and the time of single brushing, single spraying and single dipping is correspondingly limited, namely the time of single brushing is 50-180 s; the spraying time is 20-180 s; the dipping time is 10-120 s; a single application is followed by placement and the coating step repeated until the desired thickness is achieved.
In actual operation, the anchoring brick body comprises a column body formed by a hanging end head and an anchoring body, grooves are arranged on the surface of the anchoring body at intervals, and ribs are arranged on at least one surface of the anchoring body along the length direction; the structure of the anchoring brick body in the technical scheme is not limited to the above statement, and the materials which can play the same role as the anchoring brick are the coating objects of the technical scheme.
Compared with the prior art, the invention has the beneficial effects that:
when the anchor brick is used, firstly, raw materials are prepared, the prepared anchor brick body and the material for preparing the modified coating are prepared, and then all the materials for preparing the modified coating are stirred and mixed uniformly to obtain a mixed material; wherein the raw material for preparing the modified coating can be selected from organic materials which can be carbonized or combusted at high temperature; then mixing the materials and coating the materials on the surface of the anchoring brick to form a modified coating, wherein the thickness of the modified coating is 0.1-10mm, brushing, spraying, dipping and the like can be adopted during coating, and curing is carried out after coating, so that the modified coating on the surface of the anchoring brick body slowly penetrates into the anchoring brick body and is firmly attached to the anchoring brick body; finally, drying is carried out, and the modified coating material is placed and dried at the temperature of 30-50 ℃, so that the drying and the complete hardening of the modified coating material are further improved.
Through the implementation of the invention, the modified coating is arranged on the outer surface of the anchoring brick body and can be used as a buffer layer to be placed between the outer surface of the anchoring brick body and the lining material, after the lining is constructed, the modified coating material is carbonized and forms a loose layer after a high-temperature process, when local stress is caused by temperature rise or temperature reduction between the anchoring brick body and the lining material, the modified coating material can absorb the stress, buffer the breaking force caused by the stress, and prolong the service life of the anchoring brick.
Through the implementation of the invention, the modified coating is arranged on the outer surface of the anchoring brick body, and the used coating has the effect of insulating water, so that the anchoring brick body can be prevented from absorbing water in lining materials when a lining body is constructed, on one hand, the water adding accuracy and the material performance stability of the external lining materials can be ensured, and on the other hand, the anchoring brick body is a high-temperature fired product, if the water is absorbed, the water can enter the inner pore channel of the anchoring brick body to damage the structural strength of the anchoring brick body, and the water vapor forms local pressure in the pore channel when the high-temperature baking is carried out at the later stage to damage the structure of the anchoring brick body; when the anchor brick is operated, water can be effectively isolated from entering the inner pore channel, the internal structure of the anchor brick body is prevented from being damaged, and the structural strength of the anchor brick body is improved.
The invention designs a surface modification pretreatment fireproof anchoring brick and a preparation process thereof, the process design is reasonable, the operation is simple, the stress buffering between the anchoring brick body and a lining material can be effectively realized, the anchoring brick is prevented from being fractured, meanwhile, the moisture is effectively isolated, the structural strength of the anchoring brick body is improved, and the practicability is higher.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 4 ℃, and the coating thickness is 0.1 mm; when coating, firstly, brushing a layer of mixed material for 30min, wherein the brushing time is 100 s; continuously brushing the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, and standing for 48 hours in an environment of 4 ℃ with the environment humidity of 15%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 15 ℃, wherein the standing time is 48 h; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating is petroleum asphalt.
Example 2:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 25 ℃, and the coating thickness is 5 mm; when in coating, firstly, a layer of mixed material is sprayed by a spray gun for 30min, wherein the spraying time is 100 s; continuously spraying the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, and standing for 24 hours in an environment of 40 ℃, wherein the environment humidity is 60%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 45 ℃, wherein the standing time is 24 hours; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating is coal tar pitch.
Example 3:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 50 ℃, and the coating thickness is 10 mm; when coating, firstly, dipping the anchoring brick body in the mixed material for 80s, and standing for 45 min; after the coating is placed, continuing to perform dipping, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 6 hours in an environment of 90 ℃, wherein the environment humidity is 95%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 90 ℃, wherein the standing time is 6 hours; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating is a mixture of a carbon-containing resin coating and a waterproof coating.
Example 4:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: coating: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 20 ℃, and the coating thickness is 0.1 mm; when coating, firstly, brushing a layer of mixed material for 180s, and standing for 60 min; continuously brushing the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, and standing for 24 hours in an environment of 30 ℃, wherein the environment humidity is 50%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 30 ℃, wherein the standing time is 24 hours; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating comprises the following raw material components: 30% of petroleum asphalt, 20% of coal asphalt, 0.5% of carbon-containing resin coating, 3% of waterproof coating and 46.5% of strippable coating.
Example 5:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: coating: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 35 ℃, and the coating thickness is 6 mm; when in coating, firstly, a layer of mixed material is sprayed by a spray gun for 60min, wherein the spraying time is 180 s; continuously spraying the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 18h in an environment of 40 ℃, wherein the environment humidity is 65%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 40 ℃, wherein the standing time is 18 h; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating comprises the following raw material components: 35% of petroleum asphalt, 30% of coal asphalt, 5% of carbon-containing resin coating, 24% of waterproof coating and 6% of strippable coating.
Example 6:
s1: preparing an anchoring brick body for later use;
s2: weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
s3: coating: taking an anchoring brick body and a mixed material, and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 50 ℃, and the coating thickness is 10 mm; when coating, firstly, dipping the anchoring brick body in the mixed material for 120s, and standing for 60 min; after the coating is placed, continuing to perform dipping, and repeating the steps until the formed modified coating reaches the preset thickness;
s4: and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 12 hours in an environment of 50 ℃, wherein the environment humidity is 80%;
s5: and (3) drying: taking the cured anchoring brick body, standing and drying at 50 ℃, wherein the standing time is 12 hours; and obtaining the refractory anchoring brick.
In this embodiment, the modified coating comprises the following raw material components: 30% of petroleum asphalt, 26% of coal asphalt, 25% of carbon-containing resin coating, 16% of waterproof coating and 3% of strippable coating.
Example 7:
firstly, mixing modified coating materials, namely uniformly mixing 70% of petroleum asphalt, 25% of coal asphalt and 5% of carbon-containing resin coating by weight to form a mixed material, uniformly spraying a layer of the mixed material on the surface of the refractory anchoring brick by using a spray gun within 50-60 s at the ambient temperature of 30 ℃, then standing for 20 minutes, spraying a layer of the mixed material, and spraying for 5 times according to the step to form a modified coating; then curing for 12 hours under the environment of 35 ℃ and 60 percent of humidity, and drying for 24 hours under the condition of 35 ℃ to prepare the refractory anchoring brick with the surface modification pretreatment coating thickness of 2 mm.
Example 8:
firstly, modifying a coating material, namely uniformly mixing 80% of petroleum asphalt, 15% of coal asphalt and 5% of waterproof coating by weight to form a mixed material, placing the mixed material into an impregnation tank, immersing the fire-resistant anchoring brick into the mixed material at the ambient temperature of 35 ℃ for 45s, taking the fire-resistant anchoring brick out of the mixed material, standing for 25 minutes, then immersing a layer of the mixed material, and impregnating for 8 times according to the step to form a modified coating; then curing for 8 hours under the environment of 35 ℃ and 50% of humidity, and drying for 24 hours under the condition of 35 ℃ to prepare the refractory anchoring brick with the surface modification pretreatment coating thickness of 3 mm.
And (4) conclusion: examples 1 to 8 are all the fire-resistant anchoring bricks prepared by the technical scheme, and the fire-resistant anchoring bricks prepared in examples 1 to 8 and commercially available fire-resistant anchoring bricks are taken as samples to form a control experiment;
when observing the use conditions of the samples of examples 1-8 and the samples purchased on the market, the anchoring bricks prepared in examples 1-8 are obviously free from fracture phenomena in use, and the surface of the anchoring bricks purchased on the market is obviously cracked when the anchoring bricks are used in a high-temperature environment.
The modified coating is arranged on the outer surface of the anchoring brick body and can be used as a buffer layer to be placed between the outer surface of the anchoring brick body and a lining material, after a lining is constructed, the modified coating material is carbonized and forms a loose layer after a high-temperature process, and when local stress is caused between the anchoring brick body and the lining material due to temperature rise or temperature fall, the modified coating material can absorb the stress, buffer the breaking force caused by the stress and prolong the service life of the anchoring brick; meanwhile, the coating has the effect of insulating water, so that the anchoring brick body can be prevented from absorbing water in lining materials when the lining is constructed, on one hand, accurate water adding and stable material performance of external lining materials can be ensured, on the other hand, the anchoring brick body is a high-temperature fired product, if water is absorbed, water can enter an internal pore channel of the anchoring brick body, the structural strength of the anchoring brick body is damaged, and water vapor forms local pressure in the pore channel during high-temperature baking at the later stage, so that the structure of the anchoring brick body is damaged; when the anchor brick is operated, water can be effectively isolated from entering the inner pore channel, the internal structure of the anchor brick body is prevented from being damaged, and the structural strength of the anchor brick body is improved.
The invention designs a surface modification pretreatment fireproof anchoring brick and a preparation process thereof, the process design is reasonable, the operation is simple, the stress buffering between the anchoring brick body and a lining material can be effectively realized, the anchoring brick is prevented from being fractured, meanwhile, the moisture is effectively isolated, the structural strength of the anchoring brick body is improved, and the practicability is higher.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a surface modification preliminary treatment fire-resistant anchor brick which characterized in that: the fireproof anchoring brick comprises an anchoring brick body and a modified coating, wherein the modified coating is coated on the surface of the anchoring brick body.
2. The surface-modified pretreated refractory anchoring brick according to claim 1, wherein: the modified coating is any one or a mixture of more of petroleum asphalt, coal asphalt, carbon-containing resin coating, waterproof coating and strippable coating.
3. The surface-modified pretreated refractory anchoring brick according to claim 1, wherein: the modified coating comprises the following raw material components: 30-90% of petroleum asphalt, 20-90% of coal asphalt, 0.5-60% of carbon-containing resin coating, 3-90% of waterproof coating and 3-75% of strippable coating.
4. A surface modified pretreated refractory anchoring brick according to any one of claims 1 to 3, wherein: the thickness of the modified coating is 0.1-10 mm.
5. A preparation process of a surface modification pretreatment refractory anchoring brick is characterized by comprising the following steps: the method comprises the following steps:
1) preparing materials;
2) coating to form a modified coating;
3) maintaining;
4) drying;
5) and obtaining the refractory anchoring brick.
6. The process for preparing a surface-modified pretreated refractory anchoring brick according to claim 5, wherein: the method comprises the following steps:
1) preparing an anchoring brick body for later use;
2) weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
3) taking the anchoring brick body and the mixed material prepared in the step 1), and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 4-50 ℃, and the coating thickness is 0.1-10 mm;
4) and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 6-48h in an environment of 4-90 ℃, wherein the environment humidity is 15-95%;
5) and (3) drying: taking the cured anchoring brick body, standing and drying at 15-90 ℃, wherein the standing time is 6-48 h;
6) and obtaining the refractory anchoring brick.
7. The process for preparing a surface-modified pretreated refractory anchoring brick according to claim 6, wherein: the method comprises the following steps:
1) preparing an anchoring brick body for later use;
2) weighing raw materials of each component according to a proportion, wherein the raw materials comprise petroleum asphalt, coal asphalt, carbon-containing resin paint, waterproof paint and strippable paint, putting the raw materials into a high-speed stirrer for mixing, and stirring uniformly to prepare a mixed material for later use;
3) coating: taking the anchoring brick body and the mixed material prepared in the step 1), and coating the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 20-50 ℃, and the coating thickness is 0.1-10 mm;
4) and (5) maintenance: taking the anchoring brick body coated with the modified coating, standing for 12-24h in an environment of 30-50 ℃, wherein the ambient humidity is 50-80%;
5) and (3) drying: taking the cured anchoring brick body, standing and drying at the temperature of 30-50 ℃, wherein the standing time is 12-24 h;
6) and obtaining the refractory anchoring brick.
8. The process for preparing a surface-modified pretreated refractory anchoring brick according to claim 7, wherein: in the step 3), firstly, brushing a layer of mixed material for 50-180s, and standing for 5-60 min; and continuously brushing the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness.
9. The process for preparing a surface-modified pretreated refractory anchoring brick according to claim 7, wherein: in the step 3), a layer of mixed material is firstly sprayed by a spray gun during coating, the spraying time is 20-180s, and the mixture is placed for 5-60 min; and continuing spraying the mixed material after the mixture is placed, and repeating the steps until the formed modified coating reaches the preset thickness.
10. The process for preparing a surface-modified pretreated refractory anchoring brick according to claim 7, wherein: in the step 3), the anchoring brick body is firstly soaked in the mixed material during coating, the soaking time is 10-120s, and the mixture is placed for 5-60 min; and (4) continuing to perform dipping after the placement, and repeating the steps until the formed modified coating reaches the preset thickness.
Priority Applications (1)
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|---|---|---|---|
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| CN201463563U (en) * | 2009-07-15 | 2010-05-12 | 河南省宏达炉业有限公司 | Composite prefabricated brick for lining |
| CN201508107U (en) * | 2009-07-15 | 2010-06-16 | 河南省宏达炉业有限公司 | Energy efficient composite lining structure of grate furnace wall |
| CN202562280U (en) * | 2012-04-27 | 2012-11-28 | 成都府天新材料科技有限公司 | Composite precast brick for kiln liner |
| CN202938648U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Prefabricated brick for inner liner of rotary kiln |
| CN203116078U (en) * | 2012-10-19 | 2013-08-07 | 徐敏 | Energy-saving composite furnace lining used for industrial boiler |
| CN207487415U (en) * | 2017-11-07 | 2018-06-12 | 北京恩吉赛威节能科技有限公司 | A kind of heating furnace hearth inner lining |
| CN210321197U (en) * | 2019-05-23 | 2020-04-14 | 嘉德节能科技(广州)有限公司 | A anti fiber pulverization structure for petrochemical industry pyrolysis furnace |
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| CN201463563U (en) * | 2009-07-15 | 2010-05-12 | 河南省宏达炉业有限公司 | Composite prefabricated brick for lining |
| CN201508107U (en) * | 2009-07-15 | 2010-06-16 | 河南省宏达炉业有限公司 | Energy efficient composite lining structure of grate furnace wall |
| CN202562280U (en) * | 2012-04-27 | 2012-11-28 | 成都府天新材料科技有限公司 | Composite precast brick for kiln liner |
| CN202938648U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Prefabricated brick for inner liner of rotary kiln |
| CN203116078U (en) * | 2012-10-19 | 2013-08-07 | 徐敏 | Energy-saving composite furnace lining used for industrial boiler |
| CN207487415U (en) * | 2017-11-07 | 2018-06-12 | 北京恩吉赛威节能科技有限公司 | A kind of heating furnace hearth inner lining |
| CN210321197U (en) * | 2019-05-23 | 2020-04-14 | 嘉德节能科技(广州)有限公司 | A anti fiber pulverization structure for petrochemical industry pyrolysis furnace |
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| CN110595210B (en) | 2021-01-08 |
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