CN105948765A - Mullite phosphate and chamotte phosphate refractory ramming material and preparation method thereof - Google Patents
Mullite phosphate and chamotte phosphate refractory ramming material and preparation method thereof Download PDFInfo
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- CN105948765A CN105948765A CN201610268930.4A CN201610268930A CN105948765A CN 105948765 A CN105948765 A CN 105948765A CN 201610268930 A CN201610268930 A CN 201610268930A CN 105948765 A CN105948765 A CN 105948765A
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- base material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
A preparation method of a phosphate mullite refractory ramming material comprises the following steps: preparing a base material: preparing a base material: according to the mass percentage, weighing 30-40% of a mullite aggregate with the particle size of 3-5 mm, 15-25% of a mullite aggregate with the particle size of 1-2 mm, 5-10% of a mullite aggregate powder with the particle size of 0.1-1 mm, 15-25% of a mullite powder with the particle size of less than 0.09 mm and 5-15% of a clay powder with the particle size of less than 0.1 mm; then stirring evenly the weighed raw materials; and preparing a phosphoric acid solution with the amount 5-15% of the total amount of the base material; preparing a wet material: adding 40-70% of the total amount of the phosphate solution into the base material, and continuing to stir; ageing the material: sealing the prepared wet material in a sealed container, and allowing air not to be left in the container; and blending the material: again adding 1-5% of CA-50 cement into the wet material, stirring evenly, then adding the remaining phosphoric acid solution, at the same time, sprinkling steel fibers with the amount 1-5% of the total amount of the base material, and stirring for 3-5 minutes.
Description
Technical field
The present invention relates to the fire-resistant ramming material preparation field of air flow bed coal gasification equipment, particularly to one as air flow bed
The phosphoric acid mullite flame-proof ramming mass of wadding outside outlet under burner and gas piping liner, apparatus body in coal gasification equipment,
Phosphoric acid flint clay fire-resistance rammed mass and preparation method thereof.
Background technology
Refractory material is the basic material in high-temperature technology field, and application is quite varied, wherein applies most often respectively
Plant structural material and liner as opposing high temperature action in Thermal Equipment and elevated temperature vessel.But it is different according to operations department, very
To being the different parts at same equipment, working condition is the most not the same, therefore, and the requirement the most difference to refractory material.
Market the most at home, air flow bed coal gasification equipment has been widely used for bituminous mixing plant firing equipment, dry powder and mortar
Drying equipment, rotary kiln firing equipment.This equipment possesses that single furnace output is big, carbon conversion ratio high, high-efficiency cleaning, load when running
The advantages such as range of accommodation property wide, controllable is strong.This type of air flow bed coal gasification equipment different parts is chronically under different high temperature and makes
With, operation, it may occur however that physics, chemistry, machinery etc. act on, and make material deform, soften, melt, or be etched, erosion,
Or the phenomenons such as damage of bursting apart, it is not only possible to making operation persistently to carry out, the military service making material is interim disconnected, and impact produces,
And affect product quality quality, therefore the refractory material with opposing high temperature action must be used.
In order to solve this technical problem, enable air flow bed coal gasification equipment to be preferably served by bituminous mixing plant and heat
Equipment, dry powder and mortar drying equipment, rotary kiln firing equipment, the present invention herein proposes one and is made exclusively for air flow bed coal gasification
The phosphoric acid mullite flame-proof ramming mass of wadding outside outlet under burner and gas piping liner, apparatus body in equipment, phosphoric acid are burnt
Gem fire-resistance rammed mass and preparation method thereof.
Summary of the invention
It is an object of the invention to provide a kind of phosphoric acid mullite, phosphoric acid flint clay fire-resistance rammed mass and preparation method thereof, it is wanted
Solve the technical problem that and be: in existing air flow bed coal gasification equipment, the working condition for different parts is different, needs to carry
The refractory lining that confession is different, in particular for as burner in air flow bed coal gasification equipment and gas piping liner, equipment basis
The fire-resistance rammed mass of wadding outside outlet under body.
For solving above-mentioned technical problem, the present invention provides a kind of phosphoric acid mullite flame-proof ramming mass, it include base material, steel fibre with
And bonding agent, the mass percentage content of the starting components of described base material is as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount.
It is preferable over: described steel fibre is the heat-resistant steel fiber of 330 models, and the equivalent diameter of described steel fibre is 0.5mm, length
Degree is 20mm.
It is preferable over: the mass percentage content of the starting components of described base material is as follows:
Described steel fibre accounts for the 3% of described base material total amount；Described phosphoric acid solution accounts for the 10% of described base material total amount.
The present invention provides a kind of phosphoric acid flint clay fire-resistance rammed mass, and it includes base material, steel fibre and bonding agent, described base material
The mass percentage content of starting components is as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount.
It is preferable over: described steel fibre is the heat-resistant steel fiber of 330 models, and the equivalent diameter of described steel fibre is 0.5mm, length
Degree is 20mm.
It is preferable over: the mass percentage content of the starting components of described base material is as follows:
Described steel fibre accounts for the 3% of described base material total amount；Described phosphoric acid solution accounts for the 10% of described base material total amount.
A kind of phosphoric acid mullite flame-proof ramming mass preparation method, it comprises the following steps:
The first step, standby base material: weigh the mullite aggregate 30～40% that particle diameter is 3～5mm by mass percentage, particle diameter 1～
The mullite aggregate 15～25% of 2mm, particle diameter 0.1～1mm mullite aggregate 5～10%, particle diameter is less than 0.09mm
Porzite powder 15～25%, the particle diameter clay powder 5～15% less than 0.1mm；Then load weighted above-mentioned raw material is fallen
Entering in blender, mechanical agitation mixes 2～3 minutes；And get ready the cement 1 of CA-50～5%, account for described base material total amount 5～
The phosphoric acid solution of 15%；Account for steel fibre described in the 1～5% of described base material total amount；
Second step, prepares wet feed: adds 40～70% phosphoric acid solution of bonding agent total amount in the base material that the first step is got ready, continues
Continue and be stirred；
3rd step, ageing mixture: the wet feed that second step prepares is encapsulated in airtight container, gas of not leaving a blank in container, carries out ageing mixture
16～24 hours；
4th step, spice: the cement adding CA-50 in the described wet feed processed through ageing mixture as coagulant and stirs all
Even, then add remaining all phosphoric acid solutions, simultaneously according to match ratio consumption all be sprinkled into steel fibre, make described steel fibre
Must not be agglomerating, stir 3～5 minutes, i.e. preparing can be used for constructing coats to air flow bed coal gasification equipment as burner
And the fire-resistance rammed mass of wadding outside exporting under gas piping liner, apparatus body.
It is preferable over: after the fire-resistance rammed mass construction that will prepare after above-mentioned 4th step spice, carry out maintenance: in ambient temperature higher than 10 DEG C
Natural environment in maintenance, forbid to water.
It is preferable over: described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；When ambient temperature 25～
Time between 40 DEG C, it it is 3 days.
It is preferable over: after described maintenance terminates, carries out heat treatment:
First stage, to dry moisture, 31 hours altogether, with 20 DEG C as initial temperature, rise 10 DEG C per hour by average
Heating rate, be warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by the average heating rate rising 10 DEG C the most per hour, 5
110 DEG C it are warming up to after hour, constant temperature 6 hours, then by the average heating rate rising 10 DEG C per hour, heats up after 4 hours
To 150 DEG C, constant temperature 6 hours；
Second stage, dries moisture and with different chemical reactions, 25 hours altogether, with 150 DEG C as initial temperature, presses
The average heating rate rising 20 DEG C per hour, is warming up to 300 DEG C after 7.5 hours, constant temperature 4 hours, then by averagely going up per hour
Rise the heating rate of 20 DEG C, after 7.5 hours, be warming up to 450 DEG C, constant temperature 6 hours, terminates heat treatment, i.e. makes final lining and set
In air flow bed coal gasification equipment as outside outlet under burner and gas piping liner, apparatus body wadding fire-resistant smash
Dnockout.
A kind of phosphoric acid flint clay fire-resistance rammed mass preparation method, it comprises the following steps:
The first step, standby base material: weigh the flint clay aggregate 30～40% that particle diameter is 3～5mm by mass percentage, particle diameter 1～
The flint clay aggregate 15～25% of 2mm, particle diameter 0.1～1mm flint clay aggregate 5～10%, particle diameter is less than 0.09mm
Flint clay powder 15～25%, the particle diameter clay powder 5～15% less than 0.1mm；Then load weighted above-mentioned raw material is fallen
Entering in blender, mechanical agitation mixes 2～3 minutes；And get ready the cement 1 of CA-50～5%, account for described base material total amount 5～
The phosphoric acid solution of 15%；Account for steel fibre described in the 1～5% of described base material total amount；
Second step, prepares wet feed: adds 40～70% phosphoric acid solution of bonding agent total amount in the base material that the first step is got ready, continues
Continue and be stirred；
3rd step, ageing mixture: the wet feed that second step prepares is encapsulated in airtight container, gas of not leaving a blank in container, carries out ageing mixture
16～24 hours；
4th step, spice: the cement adding CA-50 in the described wet feed processed through ageing mixture as coagulant and stirs all
Even, then add remaining all phosphoric acid solutions, simultaneously according to match ratio consumption all be sprinkled into steel fibre, make described steel fibre
Must not be agglomerating, stir 3～5 minutes, i.e. preparing can be used for constructing coats to air flow bed coal gasification equipment as burner
And the fire-resistance rammed mass of wadding outside exporting under gas piping liner, apparatus body.
It is preferable over: after the fire-resistance rammed mass construction that will prepare after above-mentioned 4th step spice, carry out maintenance: in ambient temperature higher than 10 DEG C
Natural environment in maintenance, forbid to water.
It is preferable over: described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；When ambient temperature 25～
Time between 40 DEG C, it it is 3 days.
It is preferable over: after described maintenance terminates, carries out heat treatment:
First stage, to dry moisture, 31 hours altogether, with 20 DEG C as initial temperature, rise 10 DEG C per hour by average
Heating rate, be warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by the average heating rate rising 10 DEG C the most per hour, 5
110 DEG C it are warming up to after hour, constant temperature 6 hours, then by the average heating rate rising 10 DEG C per hour, heats up after 4 hours
To 150 DEG C, constant temperature 6 hours；
Second stage, dries moisture and with different chemical reactions, 25 hours altogether, with 150 DEG C as initial temperature, presses
The average heating rate rising 20 DEG C per hour, is warming up to 300 DEG C after 7.5 hours, constant temperature 4 hours, then by averagely going up per hour
Rise the heating rate of 20 DEG C, after 7.5 hours, be warming up to 450 DEG C, constant temperature 6 hours, terminates heat treatment, i.e. makes final lining and set
In air flow bed coal gasification equipment as outside outlet under burner and gas piping liner, apparatus body wadding fire-resistant smash
Dnockout.
Compared with prior art, the invention has the beneficial effects as follows: a kind of use prepared by the present invention sets at air flow bed coal gasification
Can melt with ash in coal as the fire-resistance rammed mass of wadding outside outlet under burner and gas piping liner, apparatus body for middle
Melt thing directly to contact, there is preferable fire resistance, wearability, resistance to slag and thermal shock resistance；Fire-resistant ramming prepared by the present invention
Material, in half-dried fluffy, without cohesiveness before molding, only could obtain closely knit structure under with strength ramming；In construction
By fire-resistance rammed mass coating to air flow bed coal gasification apparatus body inside and after suitable heat treatment, bonding agent is made to produce strength
Higher intensity is obtained after combination；Use water quick cooling method that two kinds of fire-resistance rammed mass goods thermal shock resistances are examined at laboratory
During survey, thermal shock resistance (1100 DEG C, water-cooled) number of times is all higher than 50 times；Production technology of the present invention is simple, and service life is long, repaiies
It is convenient to mend, and effectively solves air flow bed coal gasification equipment refractory heat-insulating problem.
Accompanying drawing explanation
Fig. 1 is the preparation method schematic flow sheet of embodiments of the invention 1.
Fig. 2 is the preparation method schematic flow sheet of embodiments of the invention 2.
Fig. 3 is the first stage heat treatment heating curve schematic diagram of the present invention.
Fig. 4 is the second stage heat treatment heating curve schematic diagram of the present invention.
Detailed description of the invention
A kind of phosphoric acid mullite, the phosphoric acid flint clay that propose the present invention below with reference to each preferred embodiment and accompanying drawing 1-3 are fire-resistant
Ramming mass and preparation method thereof is described in greater detail below.
Embodiment 1: the present invention provides a kind of phosphoric acid mullite flame-proof ramming mass, the test ginseng of its raw material percentages and finished product
Number refer to following table one, its in air flow bed coal gasification equipment as under burner and gas piping liner, apparatus body outlet outside
Side wadding, it includes base material, steel fibre and bonding agent, as it is shown in figure 1, its preparation methods steps is as follows:
First, standby base material 1000kg, the mass percentage content of the starting components of described base material is as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount；
And then, weigh particle diameter 3～5mm mullite aggregate 380kg, particle diameter 1～2mm mullite aggregate 200kg,
Particle diameter is less than 0.1mm at mullite aggregate 70kg, the particle diameter of 0.1～1mm less than the porzite powder 230kg of 0.09mm, particle diameter
Clay powder 100kg, pour in horizontal mortar mixer and stir；And get bonding agent ready: weigh 47kg industrial phosphoric acid (dense
Degree is 85%) to be diluted to concentration be 40%, now the gross weight of phosphoric acid solution is 100kg；Take the knot that phosphoric acid solution concentration is 40%
Mixture 60kg addition blender proceeds stirring with compound, obtains wet feed；The wet feed obtained is encapsulated in airtight container
In, gas of not leaving a blank in container, carry out ageing mixture 16～24 hours, the ageing mixture time is generally 24 hours, cannot be less than 16 hours,
During ageing mixture, it should wet feed is hidden tight, prevent phosphoric acid from evaporating；The compound of tired honest material will add the CA-50 of 20kg
Cement stirs as coagulant, then adds the phosphoric acid solution 40kg that concentration is 40%, the most uniformly spills into 330 resistance to simultaneously
Hot steel fibre (equivalent diameter 0.5mm, length 20mm) 30kg, steel fibre must not be agglomerating, stirs 3～5 minutes, can be
Preparing can be used for constructing coats to air flow bed coal gasification equipment as under burner and gas piping liner, apparatus body
The phosphoric acid mullite flame-proof ramming mass of wadding outside outlet；
Secondly, maintenance, after being constructed by the fire-resistance rammed mass prepared after above-mentioned spice, at the ambient temperature nature higher than 10 DEG C
Maintenance in environment, forbids to water；Described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；Work as environment
When temperature is between 25～40 DEG C, it it is 3 days；
Finally, after described maintenance terminates, carry out heat treatment (heat treatment parameter is as shown in following table three):
First stage, heat treatment heating curve as it is shown on figure 3, to dry moisture, 31 hours altogether, with 20 DEG C for rising
Beginning temperature, by the average heating rate rising 10 DEG C per hour, is warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by average
Rising the heating rate of 10 DEG C per hour, be warming up to 110 DEG C after 5 hours, constant temperature 6 hours, then by averagely rising per hour
The heating rate of 10 DEG C, is warming up to 150 DEG C after 4 hours, constant temperature 6 hours；
Second stage, heat treatment heating curve as shown in Figure 4, is dried moisture and with different chemical reactions, 25 is little altogether
Time, with 150 DEG C as initial temperature, by the average heating rate rising 20 DEG C per hour, after 7.5 hours, it is warming up to 300 DEG C, permanent
Temperature 4 hours, then by the average heating rate rising 20 DEG C per hour, after 7.5 hours, it is warming up to 450 DEG C, constant temperature 6 hours, knot
Bundle heat treatment, i.e. makes final coating to air flow bed coal gasification equipment as burner and gas piping liner, apparatus body
The phosphoric acid mullite flame-proof ramming mass of wadding outside lower outlet.
Table one:
Embodiment 2: the present invention provides a kind of phosphoric acid flint clay fire-resistance rammed mass, the test ginseng of its raw material percentages and finished product
Number refer to following table two, its in air flow bed coal gasification equipment as under burner and gas piping liner, apparatus body outlet outside
Side wadding, it includes base material, steel fibre and bonding agent, as in figure 2 it is shown, its preparation methods steps is as follows:
First, standby base material 1000kg, the mass percentage content of the starting components of described base material is as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount；
And then, weigh particle diameter 3～5mm flint clay aggregate 380kg, particle diameter 1～2mm flint clay aggregate 230kg,
Particle diameter is less than 0.1mm at flint clay aggregate 70kg, the particle diameter of 0.1～1mm less than the flint clay powder 200kg of 0.09mm, particle diameter
Clay powder 100kg, pour in horizontal mortar mixer and stir；And get bonding agent ready: weigh 47kg industrial phosphoric acid (dense
Degree is 85%) to be diluted to concentration be 40%, now the gross weight of phosphoric acid solution is 100kg；Take the knot that phosphoric acid solution concentration is 40%
Mixture 60kg addition blender proceeds stirring with compound, obtains wet feed；The wet feed obtained is encapsulated in airtight container
In, gas of not leaving a blank in container, carry out ageing mixture 16～24 hours, the ageing mixture time is generally 24 hours, cannot be less than 16 hours,
During ageing mixture, it should wet feed is hidden tight, prevent phosphoric acid from evaporating；The compound of tired honest material will add the CA-50 of 20kg
Cement stirs as coagulant, then adds the phosphoric acid solution 40kg that concentration is 40%, the most uniformly spills into 330 resistance to simultaneously
Hot steel fibre (equivalent diameter 0.5mm, length 20mm) 30kg, steel fibre must not be agglomerating, stirs 3～5 minutes, can be
Preparing can be used for constructing coats to air flow bed coal gasification equipment as under burner and gas piping liner, apparatus body
The phosphoric acid flint clay fire-resistance rammed mass of wadding outside outlet；
Secondly, maintenance, after being constructed by the fire-resistance rammed mass prepared after above-mentioned spice, at the ambient temperature nature higher than 10 DEG C
Maintenance in environment, forbids to water；Described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；Work as environment
When temperature is between 25～40 DEG C, it it is 3 days；
Finally, after described maintenance terminates, carry out heat treatment (heat treatment parameter is as shown in following table three):
First stage, heat treatment heating curve as it is shown on figure 3, to dry moisture, 31 hours altogether, with 20 DEG C for rising
Beginning temperature, by the average heating rate rising 10 DEG C per hour, is warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by average
Rising the heating rate of 10 DEG C per hour, be warming up to 110 DEG C after 5 hours, constant temperature 6 hours, then by averagely rising per hour
The heating rate of 10 DEG C, is warming up to 150 DEG C after 4 hours, constant temperature 6 hours；
Second stage, heat treatment heating curve as shown in Figure 4, is dried moisture and with different chemical reactions, 25 is little altogether
Time, with 150 DEG C as initial temperature, by the average heating rate rising 20 DEG C per hour, after 7.5 hours, it is warming up to 300 DEG C, permanent
Temperature 4 hours, then by the average heating rate rising 20 DEG C per hour, after 7.5 hours, it is warming up to 450 DEG C, constant temperature 6 hours, knot
Bundle heat treatment, i.e. makes final coating to air flow bed coal gasification equipment as burner and gas piping liner, apparatus body
The phosphoric acid flint clay fire-resistance rammed mass of wadding outside lower outlet.
Table two:
Table three:
Note: coat described in heat treatment process to air flow bed coal gasification equipment as burner and gas piping liner, equipment
Under body outside outlet the phosphoric acid mullite flame-proof ramming mass of wadding or phosphoric acid flint clay within the temperature range of 200～400 DEG C the most not
Stable, after the moisture absorption, easily efflorescence is peeled off, it should be particularly noted that can not stop halfway when therefore carrying out being heat-treated to this temperature range
Only, the temperature listed by table three is to formulate according to the maximum temperature point of equipment liner during baker, therefore, is drying
With heat treatment process, heat up and rate of temperature fall controls with the instruction of liner maximum temperature, be actually also required to look after lowest temperature
Liner at degree instruction, therefore, actual drying should be more than the time listed on table with heat treatment time.
Comprehensive described, technical scheme sufficiently effective can complete foregoing invention purpose, and the structure of the present invention is former
Reason and principle of work and power are the most sufficiently verified, and can reach intended effect and purpose, and the present invention
Embodiment can also convert according to these principles, and therefore, the present invention includes that all are previously mentioned scope in claim
Interior all replacement contents；Any equivalence change made in scope of the present invention patent, all belongs to the patent model of this case application
Within enclosing；It should be pointed out that, for those skilled in the art, in the premise without departing from the technology of the present invention principle
Under, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a phosphoric acid mullite flame-proof ramming mass, it is characterised in that: include base material, steel fibre and bonding agent, described base material
The mass percentage content of starting components as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount.
2. phosphoric acid mullite flame-proof ramming mass as claimed in claim 1, it is characterised in that: described steel fibre is 330 models
Heat-resistant steel fiber, and the equivalent diameter of described steel fibre be 0.5mm, a length of 20mm.
3. phosphoric acid mullite flame-proof ramming mass as claimed in claim 2, it is characterised in that: the starting components of described base material
Mass percentage content is as follows:
Described steel fibre accounts for the 3% of described base material total amount；Described phosphoric acid solution accounts for the 10% of described base material total amount.
4. a phosphoric acid flint clay fire-resistance rammed mass, it is characterised in that: include base material, steel fibre and bonding agent, described base material
The mass percentage content of starting components as follows:
Described steel fibre accounts for the 1～5% of described base material total amount；Described bonding agent is the phosphoric acid solution of 40% concentration, described bonding agent
Account for the 5～15% of described base material total amount.
5. phosphoric acid flint clay fire-resistance rammed mass as claimed in claim 4, it is characterised in that: described steel fibre is 330 models
Heat-resistant steel fiber, and the equivalent diameter of described steel fibre be 0.5mm, a length of 20mm.
6. phosphoric acid flint clay fire-resistance rammed mass as claimed in claim 5, it is characterised in that: the starting components of described base material
Mass percentage content is as follows:
Described steel fibre accounts for the 3% of described base material total amount；Described phosphoric acid solution accounts for the 10% of described base material total amount.
7. a phosphoric acid mullite flame-proof ramming mass preparation method, it is characterised in that comprise the following steps:
The first step, standby base material: weigh the mullite aggregate 30～40% that particle diameter is 3～5mm by mass percentage, particle diameter 1～
The mullite aggregate 15～25% of 2mm, particle diameter 0.1～1mm mullite aggregate 5～10%, particle diameter is less than 0.09mm
Porzite powder 15～25%, the particle diameter clay powder 5～15% less than 0.1mm；Then load weighted above-mentioned raw material is fallen
Entering in blender, mechanical agitation mixes 2～3 minutes；And get ready the cement 1 of CA-50～5%, account for described base material total amount 5～
The phosphoric acid solution of 15%；Account for steel fibre described in the 1～5% of described base material total amount；
Second step, prepares wet feed: adds 40～70% phosphoric acid solution of bonding agent total amount in the base material that the first step is got ready, continues
Continue and be stirred；
3rd step, ageing mixture: the wet feed that second step prepares is encapsulated in airtight container, gas of not leaving a blank in container, carries out ageing mixture
16～24 hours；
4th step, spice: the cement adding CA-50 in the described wet feed processed through ageing mixture as coagulant and stirs all
Even, then add remaining all phosphoric acid solutions, simultaneously according to match ratio consumption all be sprinkled into steel fibre, make described steel fibre
Must not be agglomerating, stir 3～5 minutes, i.e. prepare the fire-resistance rammed mass that can be used for construction；
5th step, maintenance: after the fire-resistance rammed mass construction that will prepare after above-mentioned 4th step spice, support in the ambient temperature natural environment higher than 10 DEG C
Protect, forbid to water；Described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；When ambient temperature is between 25～40 DEG C
Time, it is 3 days.
8. phosphoric acid mullite flame-proof ramming mass preparation method as claimed in claim 7, it is characterised in that: after described maintenance terminates,
Carry out heat treatment:
First stage, to dry moisture, 31 hours altogether, with 20 DEG C as initial temperature, rise 10 DEG C per hour by average
Heating rate, be warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by the average heating rate rising 10 DEG C the most per hour, 5
110 DEG C it are warming up to after hour, constant temperature 6 hours, then by the average heating rate rising 10 DEG C per hour, heats up after 4 hours
To 150 DEG C, constant temperature 6 hours；
Second stage, dries moisture and with different chemical reactions, 25 hours altogether, with 150 DEG C as initial temperature, presses
The average heating rate rising 20 DEG C per hour, is warming up to 300 DEG C after 7.5 hours, constant temperature 4 hours, then by averagely going up per hour
Rise the heating rate of 20 DEG C, after 7.5 hours, be warming up to 450 DEG C, constant temperature 6 hours, terminates heat treatment, i.e. makes final lining and set
In air flow bed coal gasification equipment as outside outlet under burner and gas piping liner, apparatus body wadding fire-resistant smash
Dnockout.
9. a phosphoric acid flint clay fire-resistance rammed mass preparation method, it is characterised in that comprise the following steps:
The first step, standby base material: weigh the flint clay aggregate 30～40% that particle diameter is 3～5mm by mass percentage, particle diameter 1～
The flint clay aggregate 15～25% of 2mm, particle diameter 0.1～1mm flint clay aggregate 5～10%, particle diameter is less than 0.09mm
Flint clay powder 15～25%, the particle diameter clay powder 5～15% less than 0.1mm；Then load weighted above-mentioned raw material is fallen
Entering in blender, mechanical agitation mixes 2～3 minutes；And get ready the cement 1 of CA-50～5%, account for described base material total amount 5～
The phosphoric acid solution of 15%；Account for steel fibre described in the 1～5% of described base material total amount；
Second step, prepares wet feed: adds 40～70% phosphoric acid solution of bonding agent total amount in the base material that the first step is got ready, continues
Continue and be stirred；
3rd step, ageing mixture: the wet feed that second step prepares is encapsulated in airtight container, gas of not leaving a blank in container, carries out ageing mixture
16～24 hours；
4th step, spice: the cement adding CA-50 in the described wet feed processed through ageing mixture as coagulant and stirs all
Even, then add remaining all phosphoric acid solutions, simultaneously according to match ratio consumption all be sprinkled into steel fibre, make described steel fibre
Must not be agglomerating, stir 3～5 minutes, i.e. prepare the fire-resistance rammed mass that can be used for construction；
5th step, maintenance: after the fire-resistance rammed mass construction that will prepare after above-mentioned 4th step spice, support in the ambient temperature natural environment higher than 10 DEG C
Protect, forbid to water；Described curing time is: when ambient temperature is between 15～25 DEG C, is 7 days；When ambient temperature is between 25～40 DEG C
Time, it is 3 days.
10. phosphoric acid flint clay fire-resistance rammed mass preparation method as claimed in claim 9, it is characterised in that: described maintenance terminates
After, carry out heat treatment:
First stage, to dry moisture, 31 hours altogether, with 20 DEG C as initial temperature, rise 10 DEG C per hour by average
Heating rate, be warming up to 60 DEG C after 4 hours, constant temperature 6 hours, then by the average heating rate rising 10 DEG C the most per hour, 5
110 DEG C it are warming up to after hour, constant temperature 6 hours, then by the average heating rate rising 10 DEG C per hour, heats up after 4 hours
To 150 DEG C, constant temperature 6 hours；
Second stage, dries moisture and with different chemical reactions, 25 hours altogether, with 150 DEG C as initial temperature, presses
The average heating rate rising 20 DEG C per hour, is warming up to 300 DEG C after 7.5 hours, constant temperature 4 hours, then by averagely going up per hour
Rise the heating rate of 20 DEG C, after 7.5 hours, be warming up to 450 DEG C, constant temperature 6 hours, terminates heat treatment, i.e. makes final lining and set
In air flow bed coal gasification equipment as outside outlet under burner and gas piping liner, apparatus body wadding fire-resistant smash
Dnockout.
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| CN108503375A (en) * | 2018-03-08 | 2018-09-07 | 山东嘉腾实业有限公司 | High intensity ultra-large type keeps the temperature the preparation method of syphon |
| CN109354505A (en) * | 2018-10-30 | 2019-02-19 | 浙江锦诚新材料股份有限公司 | A kind of cement kiln residual heat generating wear resistance ramming mass |
| CN110981508A (en) * | 2019-12-10 | 2020-04-10 | 山东九龙新材料有限公司 | Refractory ramming material for repairing bottom brick of hot-metal ladle and repairing method |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN115490505A (en) * | 2022-11-02 | 2022-12-20 | 中钢洛耐科技股份有限公司 | Anti-scouring mullite runner brick and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108503375A (en) * | 2018-03-08 | 2018-09-07 | 山东嘉腾实业有限公司 | High intensity ultra-large type keeps the temperature the preparation method of syphon |
| CN109354505A (en) * | 2018-10-30 | 2019-02-19 | 浙江锦诚新材料股份有限公司 | A kind of cement kiln residual heat generating wear resistance ramming mass |
| CN110981508A (en) * | 2019-12-10 | 2020-04-10 | 山东九龙新材料有限公司 | Refractory ramming material for repairing bottom brick of hot-metal ladle and repairing method |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN115490505A (en) * | 2022-11-02 | 2022-12-20 | 中钢洛耐科技股份有限公司 | Anti-scouring mullite runner brick and preparation method thereof |
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Application publication date: 20160921 |