CN104961386A

CN104961386A - Preparation method of thermal expansion stone cracking agent

Info

Publication number: CN104961386A
Application number: CN201510317037.1A
Authority: CN
Inventors: 刘吉平; 韩钊武; 刘晓波
Original assignee: Guizhou Run Jin Carbon Materials Co Ltd; Beijing Institute of Technology BIT
Current assignee: Guizhou Run Jin Carbon Materials Co Ltd; Beijing Institute of Technology BIT
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2015-10-07
Anticipated expiration: 2035-06-10
Also published as: CN104961386B

Abstract

The invention relates to a preparation method of a thermal expansion stone cracking agent, and belongs to the material science and new energy crossing field. The preparation method comprises the following steps: weighing solid powders with the particle size of 1-100[mu]m according to a formula, and uniformly mixing to obtain a powder mixture; adding starch gum into the powder mixture; uniformly stirring, and kneading until dough with moderate hardness is obtained; and granulating to obtain the granular thermal expansion stone cracking agent. The preparation method has the advantages of simple process, easy operation, adaptation to present industrial production device conditions, realization of conversion of the thermal expansion stone cracking agent from laboratory basic theory researches and small-scale production to industrial production, great improvement of the preparation output and the industrial scale of the thermal expansion stone cracking agent, and safe and reliable production process; and the stone cracking agent has the advantages of short breaking time, high efficiency, and no pollution to environment.

Description

A kind of preparation method of thermal expansion stone cracking agent

Technical field

The present invention relates to a kind of preparation method of thermal expansion stone cracking agent, belong to Materials science and new forms of energy crossing domain.

Background technology

Mining explosive is the requisite important step of mining production process, and the past is dominate in mine excavation always, and is widely used in the aspect such as road performance, hydro project.But meanwhile, mining explosive exists very various problems, such as: slurry explosive exists defects such as containing poisonous and harmful component, storage period is short, Sensitivity to Primary Explosion is low; Emulsion explosive is compared with there is weight strength at large compared with little, cost compared with practical problemss such as high, viscosity is large, manual powder charge difficulties; Also ubiquity labour intensity is large for tradition and the mining explosive of clumsiness, and work efficiency is low, waste resource, the shortcoming such as poor stability and contaminate environment.

Along with development in science and technology and social progress; the mining theory of safe green gradually pay attention to by industry personage; compared with industrial mining explosive; static stone cracking agent because of have noiseless, controlled, without chip, Financial cost is low, use is simple, construct and the advantage such as transportation safety, reserved resource and environment; and become the focus of investigation and application; be widely used in the engineering constructions such as building stones cutting, rock failure, the cutting of groove open caisson, concrete foundation dismounting gradually, in the development of the national economy, play more and more vital role.

Static stone cracking agent is noted people's (filling) in nonmetal hard brittle body, and as in the perforation of rock, concrete etc., the swelling pressure utilizing aquation to produce carry out splitting stone.Now mainly contain two kinds with static stone cracking agent, one is prepared burden according to a certain ratio with Wingdale, silica and gypsum, and calcination becomes mineral dust, adds people's water reducer and be made into; Another kind in unslaked lime, adds a small amount of calcium aluminosilicate or ferro-aluminate is made into, and adds water and mix slip, pour into and split in the boring of stone body during use.

Though these static stone cracking agent advantages are obvious, but also manifest fatal weakness in actual applications, such as: split the stone time long, under low temperature particularly below 5 DEG C, unslaked lime aquation is reactive poor, splits stone and need expend more than 2 days time, even if some efficient stone cracking agent fast of latest report, split the stone time also many at more than 30min, split stone efficiency and efficiency low, its application is restricted; Stone cracking agent mostly is granular, is not easy to fill in boring, just need can reach the tamped density requirement splitting stone with the tamping of the special tool such as pneumatic pick, reciprocating drill; Stone cracking agent main component mostly is unslaked lime, due to hydration reaction sharply, generate heat rapidly, often form a large amount of water vapour, cause whitewashing, cause while splitting stone failure, also have the danger of loss personnel; Meanwhile, stone cracking agent main raw material unslaked lime production process big energy-consuming, use procedure water requirement is comparatively large, and after splitting stone, reaction product alkalescence is strong, exists to pollute destroy earth's surface soil property and surface vegetation, water resource waste and environmental pollution phenomenon obvious.

Summary of the invention

The object of the invention is to solve that existing stone cracking agent product rupture time is long, efficiency is low and the problem of contaminate environment, the preparation method of a kind of thermal expansion stone cracking agent provided.

The object of the invention is to be achieved through the following technical solutions.

A kind of thermal expansion stone cracking agent, its prescription quality percentage composition is as follows:

Formula one, coal dust, colliery powder, peroxidation calcium powder, potassium perchlorate powder and powders A, mass ratio is followed successively by (10 ~ 45): (5 ~ 40): (15 ~ 35): (2 ~ 15): (5 ~ 25);

Formula two, coal dust, colliery powder, peroxidation calcium powder, potassium perchlorate powder, mass ratio is followed successively by (20 ~ 45): (15 ~ 40): (15 ~ 35): (2 ~ 15);

Formula three, coal dust, colliery powder, peroxidation calcium powder and powders A, mass ratio is followed successively by (10 ~ 40): (15 ~ 35): (15 ~ 45): (5 ~ 15);

Formula four, coal dust, colliery powder, peroxidation calcium powder, mass ratio is followed successively by (25 ~ 45): (10 ~ 30): (25 ~ 45);

Formula five, coal dust, colliery powder, potassium perchlorate powder and powders A, mass ratio is followed successively by (15 ~ 35): (12 ~ 35): (10 ~ 25): (10 ~ 35);

Formula six, coal dust, colliery powder, potassium perchlorate powder, mass ratio is followed successively by (25 ~ 55): (15 ~ 45): (5 ~ 30);

Formula seven, colliery powder, peroxidation calcium powder, potassium perchlorate powder and powders A, their mass ratio is followed successively by (25 ~ 50): (20 ~ 40): (5 ~ 15): (10 ~ 35);

Formula eight, colliery powder, peroxidation calcium powder, potassium perchlorate powder, mass ratio is followed successively by (35 ~ 60): (25 ~ 45): (5 ~ 20);

Formula nine, colliery powder, peroxidation calcium powder and powders A, their mass ratio is followed successively by (35 ~ 55): (25 ~ 50): (15 ~ 35);

Formula ten, colliery powder, peroxidation calcium powder, mass ratio is followed successively by (35 ~ 70): (30 ~ 65);

Fill a prescription 11, colliery powder, potassium perchlorate powder and powders A, their mass ratio is followed successively by (30 ~ 60): (15 ~ 35): (5 ~ 35);

Fill a prescription 12, colliery powder, potassium perchlorate powder, mass ratio is followed successively by (60 ~ 85): (15 ~ 40);

Fill a prescription 13, coal dust, potassium perchlorate powder and powders A, their mass ratio is followed successively by (30 ~ 45): (20 ~ 35): (20 ~ 35);

Fill a prescription 14, coal dust, potassium perchlorate powder, mass ratio is followed successively by (55 ~ 85): (15 ~ 45);

Fill a prescription 15, coal dust, peroxidation calcium powder and powders A, their mass ratio is followed successively by (25 ~ 60): (25 ~ 45): (5 ~ 30);

Fill a prescription 16, coal dust, peroxidation calcium powder, mass ratio is followed successively by (30 ~ 65): (35 ~ 70).

Described powders A comprises corn stalk powder, rice straw powder, wheat stalk powder, maize spike stalk powder, wood dust or nutshell powder;

A preparation method for thermal expansion stone cracking agent, concrete steps are as follows:

Step one, according to formula take the pressed powder that particle diameter is 1 ~ 100 μm, mix, obtain powder mix;

Step 2, in the powder mix of step one gained, add amylan; After stirring, kneading, kneading, until in neither too hard, nor too soft dough;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds (0.4 ~ 0.7) kg water, per kilogram calcium peroxide powder adds (0.4 ~ 0.7) kg water, per kilogram potassium perchlorate powder adds (0.3 ~ 0.65) kg water, per kilogram coal gangue powder adds (0.3 ~ 0.7) kg water, and per kilogram powders A adds (0.4 ~ 0.75) kg water;

The solute of amylan determines according to the total mass of gained powder mix in step one: amylan solute total mass accounts for (0.5 ~ 5) % of the total mass of step one powder mix;

The solute of amylan comprises starch, phenol, white oil, hydrophilic silicon oil, and mass ratio is (95 ~ 99.99): (0.5 ~ 8): (1.5 ~ 5): (0.5 ~ 4);

Step 3, by the self-control container of obtained dough thing by 10 ~ 100 order numbers, adjustment urceolus rotational speed omega is per minute 0.5 ~ 1000 turn, obtains the particle that length l is about 0.02 ~ 5mm;

The calculated relationship of particle length l and urceolus rotational speed omega is: l=v/ ω, v are the extruded velocity of dough thing, and its numerical values recited directly measures display by container device;

Step 4, step 3 gained particle is placed in shady and cool ventilation place, dry in the air to leather hard, part be there is to the granulation crude product of bonding by touching, make its natural separation, then be transferred in loft drier, at 50 ~ 150 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtain the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for anhydrous for the thermal expansion of step 4 gained micro-sound stone cracking agent crude product, repeatedly sieve in 10 ~ 100 object copper sieves, gained screen underflow carries out size grading, obtains the particle of the thermal expansion stone cracking agent of target grain size;

Can be checked dough soft or hard degree by examination granulation after described step 2 terminates, concrete grammar is: by dough in the side extruding of copper sieve, dough continues through copper sieve under squeezing action in fine strip shape, strand length disconnects after reaching 0.5 ~ 1.5cm automatically, non-caked mutually by slice after copper sieve, slice is after 1 meter of high perpendicular lands, also non-caked mutually, show that dough is neither too hard, nor too soft, be applicable to granulation;

The concrete grammar that described step 4 determination gained granulation crude product dries in the air to leather hard is: getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard;

Described self-control container is made up of inner core and urceolus, the metal cylinder of inner core to be diameter be 10 ~ 100cm, there is squeezing device inner core inside, heat transfer effect 0.5 ~ 5mm, it is the square hole of 0.5 ~ 5mm that barrel has diameter to be the circular hole of 0.5 ~ 5mm diameter or the length of side, and hole density is 3 ~ 80 every square centimeter; Urceolus is the metal cylinder of rest diameter 10 ~ 100cm, and woven by fine wire and form, each braiding hole area is 3 ~ 15 times of inner core hole area, and urceolus and inner core fit tightly.

Beneficial effect

1, the preparation method of a kind of thermal expansion stone cracking agent of the present invention, preparation technology is simple, easily operates, adapts to existing suitability for industrialized production appointed condition; Thermal expansion stone cracking agent can be realized from laboratory fundamental research and small-scale production to the conversion of suitability for industrialized production, substantially increase preparation output and the technical scale of thermal expansion stone cracking agent; Production process is safe and reliable;

2, a kind of thermal expansion stone cracking agent of the present invention, for particulate state, be convenient to fill in boring, without the need to just can reach the tamped density requirement splitting stone with the tamping of the special tool such as pneumatic pick, reciprocating drill, splitting that stone sound is little, speed is fast, efficiency is high, and without the need to using water as reaction raw materials, avoiding water resource waste and earth's surface is polluted, use procedure is cleaned, and uses simple to operate, safe ready;

3, the preparation method of a kind of thermal expansion stone cracking agent of the present invention, products obtained therefrom quality is good, storage safety and stability; Production process is without " three wastes " discharge, and to human body and environment without harm, clean environment firendly is pollution-free; Use procedure Water-free environment-friendlyurinal, desired raw material source is wide, and Financial cost is low.

Embodiment

Below in conjunction with embodiment, content of the present invention is further described.

Embodiment 1

A kind of thermal expansion stone cracking agent, comprise coal dust, colliery powder, peroxidation calcium powder, potassium perchlorate powder and maize spike stalk, mass ratio is followed successively by 25:28:28:10:9;

Step one, quality are the potassium perchlorate powder of the coal dust of 5.0kg, the colliery powder of 5.6kg, the maize spike stalk powder of 1.8kg, the peroxidation calcium powder of 5.6kg and 2.0kg, mix, obtain particle diameter 100 object powder mix;

Step 2, in the powder mix of step one gained, add amylan; After stirring, kneading, kneading, until in dough, by dough in 20 order copper sieve side extruding, dough continues through copper sieve under squeezing action in fine strip shape, strand length disconnects after reaching 1.5cm automatically, non-caked mutually by slice after copper sieve, slice is after 1 meter of high perpendicular lands, also non-caked mutually, show that now dough is neither too hard, nor too soft, be applicable to granulation;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.70kg water, per kilogram coal gangue powder adds 0.63kg water, per kilogram calcium peroxide powder adds 0.40kg water, per kilogram potassium perchlorate powder adds 0.32kg water, and per kilogram maize spike stalk powder adds 0.65kg water; Amounting to the interpolation water yield is 11.078kg; Amylan solute total mass accounts for 1.5% of the total mass of step one powder mix, and quality is 0.3kg, comprises 0.285kg starch, 0.009kg phenol, 0.0045kg white oil, 0.0015kg hydrophilic silicon oil, and quality is 95:3:1.5:0.5;

Step 3, by obtained dough thing by 20 objects self-control containers, adjustment urceolus rotating speed is per minute 20 turns, obtains the particle that length is about 3mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 4 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 90 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 4 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 20 orders, 30 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 20.15kg; Above 20 order copper sieves and 30 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.15kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards;

Described self-control container is made up of inner core and urceolus, the metal cylinder of inner core to be diameter be 50cm, and there is squeezing device inner core inside, heat transfer effect 5mm, and barrel has 20 object square holes; Urceolus is the metal cylinder of rest diameter 50cm, and woven by fine wire and form, each braiding hole area is 5 times of inner core hole area, and urceolus and inner core fit tightly.

Split in stone test, the megalith of about 1.5m × 5m × 5m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the equilateral triangle fixed point of the 80cm length of side, 200g product is filled in three stone holes respectively, fine in 2min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 2:

A kind of thermal expansion stone cracking agent, comprises coal dust, colliery powder, peroxidation calcium powder, potassium perchlorate powder mass ratio is followed successively by 33:27:32:8;

Step one, quality are the potassium perchlorate powder of the coal dust of 33kg, the colliery powder of 27kg, the peroxidation calcium powder of 32kg and 8kg, mix, obtain particle diameter 100 object powder mix;

Step 2, in the powder mix of step one gained, add amylan; After stirring, kneading, kneading, until in dough, by dough in 20 order copper sieve side extruding, dough continues through copper sieve under squeezing action in fine strip shape, strand length disconnects after reaching 1.2 ~ 1.5cm automatically, non-caked mutually by slice after copper sieve, slice is after 1 meter of high perpendicular lands, also non-caked mutually, show that now dough is neither too hard, nor too soft, be applicable to granulation;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.6kg water, per kilogram coal gangue powder adds 0.6kg water, per kilogram calcium peroxide powder adds 0.55kg water, and per kilogram potassium perchlorate powder adds 0.42kg water; Amounting to the interpolation water yield is 56.96kg; Amylan solute total mass accounts for 1.1% of the total mass of step one powder mix; Quality is 1.1kg, and solute comprises 1.045kg starch, 0.0297kg phenol, 0.0121kg white oil, 0.0132kg hydrophilic silicon oil, and mass ratio is 95.0:2.7:1.1:1.2;

Step 3, by the self-control container of obtained dough thing by 15 order numbers, adjustment urceolus rotational speed omega is per minute 15 turns, obtains the particle that length l is about 2mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 5 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 90 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 15 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 15 object thermal expansion stone cracking agents.Weigh to obtain 101.02kg; Above 15 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.08kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards;

Described self-control container is made up of inner core and urceolus, the metal cylinder of inner core to be diameter be 50cm, and there is squeezing device inner core inside, heat transfer effect 5mm, and barrel has 15 object square holes; Urceolus is the metal cylinder of rest diameter 50cm, and woven by fine wire and form, each braiding hole area is 5 times of inner core hole area, and urceolus and inner core fit tightly.

Split in stone test, the megalith of about 1.7m × 4m × 4.5m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the equilateral triangle fixed point of the 80cm length of side, 210g product is filled in three stone holes respectively, fine in 1.5min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 3:

A kind of thermal expansion stone cracking agent, comprise coal dust, colliery powder, peroxidation calcium powder and wood chip powder, mass ratio is followed successively by 25:22:45:8;

Step one, quality are coal dust, the colliery powder of 22kg, the peroxidation calcium powder of 45kg, the wood chip powder of 8kg of 25kg, mix, obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.6kg water, per kilogram coal gangue powder adds 0.6kg water, per kilogram calcium peroxide powder adds 0.55kg water, and per kilogram wood chip powder adds 0.57kg water; Amounting to the interpolation water yield is 57.51kg; Amylan solute total mass accounts for 2.0% of the total mass of step one powder mix; Quality is 2.0kg, and solute comprises 1.9kg starch, 0.054kg phenol, 0.022kg white oil, 0.024kg hydrophilic silicon oil, and mass ratio is 95.0:2.7:1.1:1.2;

Step 3, by the self-control container of obtained dough thing by 10 order numbers, adjustment urceolus rotational speed omega is per minute 100 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.5kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.5kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards;

Split in stone test, the megalith of about 2.3m × 6m × 4m distributes the stone hole that 4 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the square fixed point of the 120cm length of side, 230g product is filled in four stone holes respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 4:

A kind of thermal expansion stone cracking agent, comprise coal dust, colliery powder, peroxidation calcium powder, mass ratio is followed successively by 30:28:42;

Step one, quality are coal dust, the colliery powder of 28kg, the peroxidation calcium powder of 42kg of 30kg, mix, and obtain particle diameter 300 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.7kg water, and per kilogram calcium peroxide powder adds 0.65kg water, and per kilogram coal gangue powder adds 0.65kg water; Amounting to the interpolation water yield is 66.5kg; Amylan solute total mass accounts for 3.5% of the total mass of step one powder mix; Quality is 3.5kg, and solute comprises 3.448kg starch, 0.035kg phenol, 0.007kg white oil, 0.0105kg hydrophilic silicon oil, and quality is 98.5:1.0:0.2:0.3;

Step 3, by the self-control container of obtained dough thing by 40 order numbers, adjustment urceolus rotational speed omega is per minute 5 turns, obtains the particle that length l is about 1mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 6 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 90 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 40 orders, 50 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 40 object thermal expansion stone cracking agents, weighs to obtain 103.2kg; Above 40 order copper sieves and 50 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.3kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards;

Split in stone test, the megalith of about 2.9m × 8m × 6m distributes the stone hole that 4 diameters are 38mm, the degree of depth is 2.5m, stone hole is positioned at the square fixed point of the 120cm length of side, 400g product is filled in four stone holes respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 5:

A kind of thermal expansion stone cracking agent, comprise coal dust, colliery powder, potassium perchlorate powder and rice straw powder, mass ratio is followed successively by 40:28:20:12;

Step one, quality are coal dust, the colliery powder of 28kg, the rice straw powder of 12kg, the potassium perchlorate powder of 20kg of 40kg, mix, obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.6kg water, per kilogram potassium perchlorate powder adds 0.4kg water, per kilogram coal gangue powder adds 0.6kg water, and per kilogram rice straw powder adds 0.55kg water; Amounting to the interpolation water yield is 55.4kg; Amylan solute total mass accounts for 2.0% of the total mass of step one powder mix; Quality is 2.0kg, and solute comprises 1.9kg starch, 0.054kg phenol, 0.022kg white oil, 0.024kg hydrophilic silicon oil, and mass ratio is 95.0:2.7:1.1:1.2;

Step 3, by the self-control container of obtained dough thing by 15 order numbers, adjustment urceolus rotational speed omega is per minute 80 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 15 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 15 object thermal expansion stone cracking agents, weighs to obtain 101.7kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards;

Split in stone test, the megalith of about 2.3m × 4m × 4m distributes the stone hole that 4 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the square fixed point of the 110cm length of side, 180g product is filled in stone hole respectively, fine in 2min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 6:

A kind of thermal expansion stone cracking agent, comprise coal dust, colliery powder, potassium perchlorate powder, mass ratio is followed successively by 35:44:21;

Step one, quality are the potassium perchlorate powder of the coal dust of 35kg, the colliery powder of 44kg and 21kg, mix, and obtain particle diameter 200 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.6kg water, and per kilogram coal gangue powder adds 0.6kg water, and per kilogram potassium perchlorate powder adds 0.42kg water; Amounting to the interpolation water yield is 56.22kg; Amylan solute total mass accounts for 1.1% of the total mass of step one powder mix; Quality is 1.1kg, and solute comprises 1.045kg starch, 0.0297kg phenol, 0.0121kg white oil, 0.0132kg hydrophilic silicon oil, and mass ratio is 95.0:2.7:1.1:1.2;

Step 3, by the self-control container of obtained dough thing by 15 order numbers, adjustment urceolus rotational speed omega is per minute 33 turns, obtains the particle that length l is about 2mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 7 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 100 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 15 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 15 object thermal expansion stone cracking agents, weighs to obtain 101.01kg; Above 15 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.09kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 3.6m × 6m × 8m distributes the stone hole that 4 diameters are 38mm, the degree of depth is 2.8m, stone hole is positioned at the square fixed point of the 250cm length of side, 450g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 300m.

Embodiment 7:

A kind of thermal expansion stone cracking agent, comprise colliery powder, peroxidation calcium powder, potassium perchlorate powder and walnut shell flour, their mass ratio is followed successively by 40:35:10:15;

Step one, quality are the potassium perchlorate powder of 40kg colliery powder, the walnut shell flour of 15kg, the peroxidation calcium powder of 35kg and 10kg, mix, and obtain particle diameter 150 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal gangue powder adds 0.65kg water, per kilogram peroxidation calcium powder adds 0.63kg water, per kilogram potassium perchlorate powder adds 0.43kg water, and per kilogram walnut shell flour adds 0.57kg water; Amounting to the interpolation water yield is 60.9kg; Amylan solute total mass accounts for 1.7% of the total mass of step one powder mix; Quality is 1.7kg, and solute comprises 1.632kg starch, 0.0289kg phenol, 0.0171kg white oil, 0.0221kg hydrophilic silicon oil, and mass ratio is 96.0:1.7:1.0:1.3;

Step 3, by the self-control container of obtained dough thing by 15 order numbers, adjustment urceolus rotational speed omega is per minute 13 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 15 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 15 object thermal expansion stone cracking agents, weighs to obtain 101.55kg; Above 15 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.15kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 5.2m × 8m × 10m distributes the stone hole that 8 diameters are 38mm, the degree of depth is 3.5m, stone hole is positioned at square vertices and the four limit terminals of the 120cm length of side, 785g product is filled in stone hole respectively, fine in 1.5min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 270m.

Embodiment 8:

A kind of thermal expansion stone cracking agent, comprise colliery powder, peroxidation calcium powder, potassium perchlorate powder, mass ratio is followed successively by 58:33:9;

Step one, quality are the potassium perchlorate powder of the colliery powder of 58kg, the peroxidation calcium powder of 33kg and 9kg, mix, and obtain particle diameter 100 object powder mix;

Step 2, in the powder mix of step one gained, add amylan; After stirring, kneading, kneading, until in dough, by dough in 20 order copper sieve side extruding, dough continues through copper sieve under squeezing action in fine strip shape, strand length disconnects after reaching 1.0 ~ 1.5cm automatically, non-caked mutually by slice after copper sieve, slice is after 1 meter of high perpendicular lands, also non-caked mutually, show that now dough is neither too hard, nor too soft, be applicable to granulation;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal gangue powder adds 0.65kg water, and per kilogram peroxidation calcium powder adds 0.63kg water, and per kilogram potassium perchlorate powder adds 0.43kg water; Amounting to the interpolation water yield is 62.36kg; Amylan solute total mass accounts for 1.7% of the total mass of step one powder mix; Quality is 1.7kg, and solute comprises 1.632kg starch, 0.0289kg phenol, 0.0171kg white oil, 0.0221kg hydrophilic silicon oil, and mass ratio is 96.0:1.7:1.0:1.3;

Step 3, by the self-control container of obtained dough thing by 20 order numbers, adjustment urceolus rotational speed omega is per minute 62 turns, obtains the particle that length l is about 2mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 8.5 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 75 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 20 orders, 30 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.62kg; Above 20 order copper sieves and 30 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.08kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 2.0m × 3m × 4m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the equilateral triangle summit of the 120cm length of side, 240g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 9:

A kind of thermal expansion stone cracking agent, comprise colliery powder, peroxidation calcium powder and corn stalk powder, their mass ratio is followed successively by 38:47:15;

Step one, quality are colliery powder, the corn stalk powder of 15kg, the peroxidation calcium powder of 47kg of 38kg, mix, and obtain particle diameter 80 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram colliery powder adds 0.48kg water, and per kilogram calcium peroxide powder adds 0.45kg water, and per kilogram corn stalk powder adds 0.52kg water; Amounting to the interpolation water yield is 47.19kg; Amylan solute total mass accounts for 0.9% of the total mass of step one powder mix; Quality is 0.9kg, and solute comprises 0.887kg starch, 0.0088kg phenol, 0.0039kg white oil, 0.004kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 10 order numbers, adjustment urceolus rotational speed omega is per minute 122 turns, obtains the particle that length l is about 2mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 12 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 110 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 10 object thermal expansion stone cracking agents, weighs to obtain 100.75kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.15kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 2.0m × 5m × 4m distributes the stone hole that 4 diameters are 28mm, the degree of depth is 1.6m, and 270g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of beyond 200m without megalith cracking sound.

Embodiment 10:

A kind of thermal expansion stone cracking agent, comprise colliery powder, peroxidation calcium powder, mass ratio is followed successively by 55:45;

Step one, quality are the colliery powder of 55kg, the peroxidation calcium powder of 45kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, and solvent is water, and the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram colliery powder adds 0.48kg water, and per kilogram calcium peroxide powder adds 0.45kg water; Amounting to the interpolation water yield is 46.65kg; Amylan solute total mass accounts for 0.9% of the total mass of step one powder mix; Quality is 0.9kg, and solute comprises 0.887kg starch, 0.0088kg phenol, 0.0039kg white oil, 0.004kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 10 order numbers, adjustment urceolus rotational speed omega is per minute 152 turns, obtains the particle that length l is about 2mm;

Step 4, step 3 gained particle is placed in after shady and cool ventilation place dries in the air 12 hours, getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard; Dry in the air to leather hard, the granulation crude product that part is occurred to for bonding, by touching, makes its natural separation, is then transferred in loft drier, at 100 DEG C, be dried to drying, take out after naturally cooling to room temperature, obtains the dry crude product of thermal expansion stone cracking agent;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 10 object thermal expansion stone cracking agents, weighs to obtain 100.72kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.18kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 2.6m × 3m × 5m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.5m, stone hole is positioned at the equilateral triangle summit of the 120cm length of side, 274g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 11:

A kind of thermal expansion stone cracking agent, comprise colliery powder, potassium perchlorate powder and maize spike stalk powder, their mass ratio is followed successively by 63:25:12;

Step one, quality are colliery powder, the maize spike stalk powder of 12kg, the potassium perchlorate powder of 25kg of 63kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram colliery powder adds 0.48kg water, and per kilogram potassium perchlorate powder adds 0.45kg water, and per kilogram maize spike stalk powder adds 0.47kg water; Amounting to the interpolation water yield is 47.13kg; Amylan solute total mass accounts for 0.9% of the total mass of step one powder mix; Quality is 0.9kg, and solute comprises 0.887kg starch, 0.0088kg phenol, 0.0039kg white oil, 0.004kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 10 order numbers, adjustment urceolus rotational speed omega is per minute 147 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 10 object thermal expansion stone cracking agents, weighs to obtain 100.68kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.22kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 3.4m × 4m × 4m distributes the stone hole that 3 diameters are 46mm, the degree of depth is 1.9m, stone hole is positioned at the equilateral triangle summit of the 120cm length of side, 390g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 12:

A kind of thermal expansion stone cracking agent, comprise colliery powder, potassium perchlorate powder, mass ratio is followed successively by 83:17;

Step one, quality are the colliery powder of 83kg, the potassium perchlorate powder of 17kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, and solvent is water, and the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram colliery powder adds 0.48kg water, and per kilogram potassium perchlorate powder adds 0.45kg water; Amounting to the interpolation water yield is 47.49kg; Amylan solute total mass accounts for 0.9% of the total mass of step one powder mix; Quality is 0.9kg, and solute comprises 0.887kg starch, 0.0088kg phenol, 0.0039kg white oil, 0.004kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 40 order numbers, adjustment urceolus rotational speed omega is per minute 15 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 10 object thermal expansion stone cracking agents, weighs to obtain 100.69kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.21kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 12.0m × 6m × 4m distributes the stone hole that 6 diameters are 42mm, the degree of depth is 3.5m, and 1380g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 13:

A kind of thermal expansion stone cracking agent, comprise coal dust, potassium perchlorate powder and wheat stalk powder, their mass ratio is followed successively by 48:27:25;

Step one, quality are coal dust, the wheat stalk powder of 25kg, the potassium perchlorate powder of 2.7kg of 48kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, and solvent is water, and the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram colliery powder adds 0.48kg water, and per kilogram potassium perchlorate powder adds 0.45kg water; Amounting to the interpolation water yield is 47.49kg; Amylan solute total mass accounts for 1.2% of the total mass of step one powder mix; Quality is 1.2kg, and solute comprises 1.182kg starch, 0.0118kg phenol, 0.0052kg white oil, 0.0053kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 20 order numbers, adjustment urceolus rotational speed omega is per minute 35 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 20 orders, 30 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.01kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.19kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 2.1m × 3m × 2m distributes the stone hole that 4 diameters are 28mm, the degree of depth is 1.4m, stone hole is positioned at the equilateral triangle summit of the 120cm length of side, 170g product is filled in four stone holes respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 14:

A kind of thermal expansion stone cracking agent, comprise coal dust, potassium perchlorate powder, mass ratio is followed successively by 80:20;

Step one, quality are the coal dust of 80kg and the potassium perchlorate powder of 20kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, and solvent is water, and the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.49kg water, and per kilogram potassium perchlorate powder adds 0.45kg water; Amounting to the interpolation water yield is 48.2kg; Amylan solute total mass accounts for 1.2% of the total mass of step one powder mix; Quality is 1.2kg, and solute comprises 1.182kg starch, 0.0118kg phenol, 0.0052kg white oil, 0.0053kg hydrophilic silicon oil, and quality is 98.15:0.98:0.43:0.44;

Step 3, by the self-control container of obtained dough thing by 20 order numbers, adjustment urceolus rotational speed omega is per minute 78 turns, obtains the particle that length l is about 2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 20 orders, 30 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.07kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.13kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 3.5m × 3m × 4m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.7m, stone hole is positioned at the equilateral triangle summit of the 140cm length of side, 290g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 15:

A kind of thermal expansion stone cracking agent, comprise coal dust, peroxidation calcium powder and corn stalk powder, their mass ratio is followed successively by 43:45:12;

Step one, quality are coal dust, the corn stalk powder of 12kg, the peroxidation calcium powder of 45kg of 43kg, mix, and obtain particle diameter 100 object powder mix;

Amylan is made up of solvent and solute, solvent is water, the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.51kg water, and per kilogram calcium peroxide powder adds 0.49kg water, and per kilogram corn stalk powder adds 0.50kg water; Amounting to the interpolation water yield is 49.98kg; Amylan solute total mass accounts for 1.6% of the total mass of step one powder mix; Quality is 1.6kg, and solute comprises 1.539kg starch, 0.035kg phenol, 0.014kg white oil, 0.011kg hydrophilic silicon oil, and quality is 96.2:2.2:0.9:0.7;

Step 3, by the self-control container of obtained dough thing by 20 order numbers, adjustment urceolus rotational speed omega is per minute 82 turns, obtains the particle that length l is about 0.2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.37kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.23kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 4.3m × 4m × 4m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 2.5m, stone hole is positioned at the equilateral triangle summit of the 180cm length of side, 410g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Embodiment 16:

A kind of thermal expansion stone cracking agent, comprise coal dust, peroxidation calcium powder, mass ratio is followed successively by 48:52.

Step one, quality are the coal dust of 48kg, the peroxidation calcium powder of 52kg, mix, and obtain particle diameter 150 object powder mix;

Amylan is made up of solvent and solute, and solvent is water, and the interpolation quality of water determines according to the quality of each component of powder mix in step one: per kilogram coal dust adds 0.51kg water, and per kilogram calcium peroxide powder adds 0.49kg water; Amounting to the interpolation water yield is 49.96kg; Amylan solute total mass accounts for 1.6% of the total mass of step one powder mix; Quality is 1.6kg, and solute comprises 1.539kg starch, 0.035kg phenol, 0.014kg white oil, 0.011kg hydrophilic silicon oil, and quality is 96.2:2.2:0.9:0.7;

Step 3, by the self-control container of obtained dough thing by 20 order numbers, adjustment urceolus rotational speed omega is per minute 132 turns, obtains the particle that length l is about 0.2mm;

Step 5, by dry for step 2 gained thermal expansion stone cracking agent crude product, repeatedly sieve in 10 orders, 20 object copper sieves, gained screen underflow carries out size grading, obtains the particle that target grain size is 20 object thermal expansion stone cracking agents, weighs to obtain 101.33kg; Above 10 order copper sieves and 20 order copper sieve thermal expansion stone cracking agent below weigh and amount to 0.27kg; Product is that black is granular, encapsulates with the snakeskin bag with plastic envelope, obtains the thermal expansion stone cracking agent wrapped product be up to the standards; Split in stone test, the megalith of about 2.8m × 3m × 4m distributes the stone hole that 3 diameters are 38mm, the degree of depth is 1.7m, stone hole is positioned at the equilateral triangle summit of the 120cm length of side, 282g product is filled in stone hole respectively, fine in 1min implosion stone effect, megalith instant of complete cracking, spreads out of without megalith cracking sound beyond 200m.

Claims

1. a preparation method for thermal expansion stone cracking agent, is characterized in that: concrete steps are as follows:

Step 5, by dry for anhydrous for the thermal expansion of step 4 gained micro-sound stone cracking agent crude product, repeatedly sieve in 10 ~ 100 object copper sieves, gained screen underflow carries out size grading, obtains the particle of the thermal expansion stone cracking agent of target grain size.

2. the preparation method of a kind of thermal expansion stone cracking agent as claimed in claim 1, is characterized in that: fill a prescription in described step one specific as follows:

3. the preparation method of a kind of thermal expansion stone cracking agent as claimed in claim 1 or 2, is characterized in that: described powders A comprises corn stalk powder, rice straw powder, wheat stalk powder, maize spike stalk powder, wood dust or nutshell powder.

4. the preparation method of a kind of thermal expansion stone cracking agent as claimed in claim 1, it is characterized in that: can be checked dough soft or hard degree by examination granulation after described step 2 terminates, concrete grammar is: by dough in the side extruding of copper sieve, dough continues through copper sieve under squeezing action in fine strip shape, strand length disconnects after reaching 0.5 ~ 1.5cm automatically, non-caked mutually by slice after copper sieve, slice is after 1 meter of high perpendicular lands, also non-caked mutually, show that dough is neither too hard, nor too soft, be applicable to granulation.

5. the preparation method of a kind of thermal expansion stone cracking agent as claimed in claim 1, it is characterized in that: the concrete grammar that described step 4 determination gained granulation crude product dries in the air to leather hard is: getting fritter is that the granulation crude product of strip is placed on operator's console, rupture after placing the metal block of 50g above granulation crude product, bond after placing the metal block of 500g above granulation crude product, now show that granulation crude product has dried in the air to leather hard.

6. the preparation method of a kind of thermal expansion stone cracking agent as claimed in claim 1, it is characterized in that: described self-control container is made up of inner core and urceolus, the metal cylinder of inner core to be diameter be 10 ~ 100cm, there is squeezing device inner core inside, heat transfer effect 0.5 ~ 5mm, it is the square hole of 0.5 ~ 5mm that barrel has diameter to be the circular hole of 0.5 ~ 5mm diameter or the length of side, and hole density is 3 ~ 80 every square centimeter; Urceolus is the metal cylinder of rest diameter 10 ~ 100cm, and woven by fine wire and form, each braiding hole area is 3 ~ 15 times of inner core hole area, and urceolus and inner core fit tightly.