CN109971427A - A kind of environmental protection foam formulations and preparation method thereof - Google Patents
A kind of environmental protection foam formulations and preparation method thereof Download PDFInfo
- Publication number
- CN109971427A CN109971427A CN201910326430.5A CN201910326430A CN109971427A CN 109971427 A CN109971427 A CN 109971427A CN 201910326430 A CN201910326430 A CN 201910326430A CN 109971427 A CN109971427 A CN 109971427A
- Authority
- CN
- China
- Prior art keywords
- parts
- mixture
- aloe
- environmental protection
- foam formulations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a kind of environmentally friendly foam formulations and preparation method thereof, are to solve the problems in existing mine depositing dust.This product includes the raw material of following parts by weight: 0.8-1.25 parts of gelatin, 13-16.6 parts of extract solution from aloe, 0.75-1.3 parts of matrix, 0.8-1.2 parts of alkyl glycosides, 0.9-1.18 parts of polyethers, 0.4-0.66 parts of titanium dioxide, 0.08-0.13 parts of amide and 76-85 parts of purified water.This product mostly uses the cleaning industrial chemicals of edible grade, to people, water, air environment and material fanout free region；This product Adhering capacity and water compatibility are strong, and expansion rate is fast, and coefficient of foaming reaches 50 times or more, it void-free can cover, fundamentally prevent dust to external diffusion, and diffusion time is slow after forming foam, the ratio of foam is great, will not disperse with the wind, ensure that dust-laying effect；This product application method is simple, and the surface tension of water can be greatly lowered, the speed that the dust that increases sharply is wet.
Description
Technical field
The present invention relates to dust process field, specifically a kind of environmental protection foam formulations.
Background technique
Dust is one of the Major Natural Disasters in China mine.Workers with long time sucks dust, especially respirable dust will
Serious harm can be brought to the physical and mental health of worker.In recent years, popularizing with do mechanization operation, dust slightly also add therewith
Greatly, potential threat is brought to Mine Safety in Production.According to the incomplete statistics of the Ministry of Public Health, by the end of the year 2016, national mine industry dirt
Nearly 800,000 people of consumptive, 50% or more Zhan Quanguo Pneumoconiosis Patients, every year on average dead 2500 people or so.Pneumoconiosis is to mine
Worker and its family bring greatly pain and disaster, also cause huge economic loss to enterprise and country.Except this it
Outside, dust still generates the major casualty source of explosion, and according to incompletely statistics, since 2005, China's mine industry occurs special
It is dust explosion accident 12 times big, cause 632 people dead.
In order to prevent and treat dust in mine, the control measure being widely used both at home and abroad has ore bed water filling, atomized water spray depositing dust, ventilation to remove
Dirt etc. is also all haveed the shortcomings that various although these dedusting technologies play important function to dust concentration is reduced.
Using rock stratum water injection technology: the device is complicated, is mostly the punching processing for first carrying out rock stratum before water filling, in drill process
Dust Capacity moment surges, and increases the degree of difficulty of operation, operation rock stratum needs a large amount of its flood effectiveness of water injection hole competence exertion, right
It collapses in loosening the overstocked rock stratum that will lead in rock stratum cavity；The weak hardness in rock stratum is excessive, then influences soaking effect, and water is difficult permeable formation
Inside can not achieve expected depositing dust purpose；On the other hand it is that water consumption is big, deteriorates underground work environment, the rock in some areas
Layer with ground belong to calcium carbonate structure, will lead to surface mud after water is excessive, due to winning equipment mostly it is bulky and
Weight is big, and equipment can not move after argillization, causes job schedule slow and equipment damage, needs to expend more personnel and carries out
Equipment rescue.
Using water spray dedusting: the winning equipment of most mechanization, which all designs, at present spraying device, and water spraying device is
The front end that the spray head of fine pore size is clouded in equipment is met head on, and front equipment end is met head on directly to contact rock stratum position, and is needed deeply
Rock stratum is just able to achieve the exploitation of rock, and since the aperture of spray head is subtle, spray head is easy to block and fail in use process, therefore right
Respirable dust dedusting does not have respective action.
Using blower dedusting: initially the blower cleaner of country's mine industry relies on import, and expensive, maintenance is stranded
Hardly possible, self structure are complicated, bulky, processing air quantity is limited；Blower dedusting realizes dust Control mainly by motor driven wind wheel,
Therefore dust needs a large amount of filter core to be filtered, the filter core substantial amounts that a Fans are equipped with, it is few then 100 sets, more then 300
Set, later period replace the higher cost of filter core；In summary defect, blower dedusting should not be as the first choices of mine industry dedusting.
Using electrostatic precipitator dedusting: the working principle of electrostatic precipitator: the gas containing dust particles is being connected to high pressure
When being formed by high voltage electric field between the cathode line (also known as corona discharge electrode) of DC power supply and the anode plate of ground connection and passing through, due to cathode
Generation corona discharge, gas are ionized, at this point, electronegative gas ion, under the action of electric field force, plate is moved on the sunny side,
Collide in movement with dust particles, then make grit lotus with negative electricity, it is charged after grit under the action of electric field force, also transported to anode
It is dynamic, after reaching anode, the electronics of institute's band is released, grit is then deposited on anode plate, and the gas discharge dust excluder being purified
Outside.Equipment is more complicated, it is desirable that equipment allocation and transportation and installation and maintenance management are horizontal high.Dust specific resistance there are certain requirements,
So there is certain selectivity to dust, the very high purification efficiency of the acquisition of all dust all cannot be made.By gas temperature, temperature etc.
Operating condition be affected, be both that a kind of dust such as operates under different temperatures, humidity, resulting effect is different, some powder
Dirt using effect under some temperature, humidity is fine, and under another temperature, humidity almost due to the variation of dust resistance
Electric precipitator cannot be used.Once invest that larger, horizontal electric precipitator occupied area is larger, and practical effect is not achieved
Design requirement.
The research of reagent of the people in terms of carrying out mine depositing dust.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of environmentally friendly foam formulations, mentioned above in the background art to solve
Problem.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of environmental protection foam formulations, the raw material including following parts by weight: 0.8-1.25 parts of gelatin, extract solution from aloe 13-
16.6 parts, 0.75-1.3 parts of matrix, 0.8-1.2 parts of alkyl glycosides, 0.9-1.18 parts of polyethers, 0.4-0.66 parts of titanium dioxide, acyl
0.08-0.13 parts and purified water 76-85 parts of amine.
As further embodiment of the embodiment of the present invention: polyethers uses aliphatic alcohol polyether.
As further embodiment of the embodiment of the present invention: extract solution from aloe is that aloe is smash to slurry at carrying out after aloe leaf juice
Filter and centrifugation obtain aloe condensed juice after carrying out circulation concentration, and the mass fraction that 6-9 times of its weight is added into aloe condensed juice is
95% ethyl alcohol is sufficiently stirred under room temperature, stands 1-3 hours, filters, ethyl alcohol is recovered under reduced pressure obtains.
As further embodiment of the embodiment of the present invention: titanium dioxide uses partial size for 80-150 nanometers of nanometer titanium dioxide
Titanium.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed evenly step 1, obtain the first mixture；
Matrix, polyethers and amide are mixed evenly step 2, obtain the second mixture；
Partial purification water is added into the first mixture and stirs evenly, obtains third mixture for step 3；
Remaining purified water is added into the second mixture and stirs evenly, obtains the 4th mixture for step 4；
Step 5 stirs third mixture and the 4th mixture, and titanium dioxide is at the uniform velocity added while stirring, is added completely into
After continue stirring 50-80 minute, stand 40-80 minutes to get to finished product.
As further embodiment of the embodiment of the present invention: the addition time of titanium dioxide is no less than 5 minutes in step 5.
As further embodiment of the embodiment of the present invention: speed of agitator is 270-420rpm in step 1 and step 2, is stirred
Mixing temperature is 25-38 degrees Celsius.
As further embodiment of the embodiment of the present invention: purified water carries out magnetization treatment before addition.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
This product raw material sources are extensive, mostly use the cleaning industrial chemicals of edible grade, nontoxic, to people, water, air
Environment and material fanout free region；
This product Adhering capacity and water compatibility are strong, and expansion rate is fast, and coefficient of foaming reaches 50 times or more, are formed subtle
Foam, void-free can cover, fundamentally prevent dust to external diffusion, and diffusion time is slow after forming foam, bubble
Foam could slowly degrade at 2-5 hours, and the ratio of foam is great, will not disperse with the wind, ensure that dust-laying effect；
After this product forms foam, total volume and total surface area significantly increase, and increase the collision probability with dust, increase
Big dustfall efficiency.
This product application method is simple, and the surface tension of water can be greatly lowered, the speed that the dust that increases sharply is wet,
It has broad application prospects.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of environmental protection foam formulations, including following raw material: 0.8 kilogram of gelatin, 13 kilograms of extract solution from aloe, matrix 0.75 are public
Jin, 0.8 kilogram of alkyl glycosides, 0.9 kilogram of aliphatic alcohol polyether, 0.4 kilogram of titanium dioxide, 0.08 kilogram of amide and purified water 76 are public
Jin.
Titanium dioxide uses partial size for 90 nanometers of nano-titanium dioxide.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed evenly step 1, obtain the first mixture；
Matrix, aliphatic alcohol polyether and amide are mixed evenly step 2, obtain the second mixture；
Partial purification water is added into the first mixture and stirs evenly, obtains third mixture for step 3；
Remaining purified water is added into the second mixture and stirs evenly, obtains the 4th mixture for step 4；
Third mixture and the 4th mixture are stirred, are at the uniform velocity added 90 nanometers in 8 minutes while stirring by step 5
Nano-titanium dioxide titanium dioxide continues stirring 60 minutes after being added completely into, stand 55 minutes to get finished product is arrived.
Embodiment 2
A kind of environmental protection foam formulations, including following raw material: 0.95 kilogram of gelatin, 14.2 kilograms of extract solution from aloe, matrix
0.88 kilogram, 0.9 kilogram of alkyl glycosides, 0.94 kilogram of polyethers, 0.46 kilogram of titanium dioxide, 0.09 kilogram of amide and purified water
78.7 kilograms.
Extract solution from aloe is that aloe is smash to slurry at being filtered and being centrifuged after aloe leaf juice, obtains aloe after carrying out circulation concentration
The ethyl alcohol that the mass fraction of 8 times of its weight is 95% is added into aloe condensed juice, is sufficiently stirred under room temperature, stands 2 for inspissated juice
Hour, it filters, ethyl alcohol is recovered under reduced pressure obtains.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed step 1 in 30 degrees Celsius of revolving speeds with 330rpm
It is even, obtain the first mixture；
Matrix, polyethers and amide are mixed evenly at 28 degrees Celsius with the revolving speed of 300rpm, obtain second by step 2
Mixture；
Partial purification water is added into the first mixture and stirs evenly, obtains third mixture for step 3；
Remaining purified water is added into the second mixture and stirs evenly, obtains the 4th mixture for step 4；
Step 5 stirs third mixture and the 4th mixture, and titanium dioxide is at the uniform velocity added while stirring, is added completely into
After continue stirring 70 minutes, stand 40 minutes to get arrive finished product.
Embodiment 3
A kind of environmental protection foam formulations, including following raw material: 1 kilogram of gelatin, 15 kilograms of extract solution from aloe, 1 kilogram of matrix, alkane
1 kilogram of base glucosides, 1 kilogram of aliphatic alcohol polyether, 0.5 kilogram of titanium dioxide, 0.1 kilogram of amide and 80 kilograms of purified water.
Extract solution from aloe is that aloe is smash to slurry at being filtered and being centrifuged after aloe leaf juice, obtains aloe after carrying out circulation concentration
The ethyl alcohol that the mass fraction of 8 times of its weight is 95% is added into aloe condensed juice, is sufficiently stirred under room temperature, stands 2 for inspissated juice
Hour, it filters, ethyl alcohol is recovered under reduced pressure obtains.
Titanium dioxide uses partial size for 120 nanometers of nano-titanium dioxide.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed under 26 degrees Celsius with the revolving speed of 390rpm step 1
Uniformly, the first mixture is obtained；
Matrix, aliphatic alcohol polyether and amide are mixed evenly under 35 degrees Celsius with the revolving speed of 360rpm step 2,
Obtain the second mixture；
Purified water is carried out magnetization treatment by step 3, into the first mixture be added part magnetize after purified water and
It stirs evenly, obtains third mixture；
Step 4, into the second mixture be added remanent magnetization after purified water and stir evenly, obtain the 4th mixing
Object；
Third mixture and the 4th mixture are stirred, titanium dioxide are at the uniform velocity added in 10 minutes while stirring by step 5
Titanium uses partial size for 120 nanometers of nano-titanium dioxide, continues stirring 72 minutes after being added completely into, stands 60 minutes, i.e.,
Obtain finished product.
Embodiment 4
A kind of environmental protection foam formulations, including following raw material: 1.12 kilograms of gelatin, 15.8 kilograms of extract solution from aloe, matrix 1.2
Kilogram, 1.1 kilograms of alkyl glycosides, 1.06 kilograms of polyethers, 0.55 kilogram of titanium dioxide, 0.12 kilogram of amide and purified water 83.4 it is public
Jin.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed under 29 degrees Celsius with the revolving speed of 330rpm step 1
Uniformly, the first mixture is obtained；
Matrix, polyethers and amide are mixed evenly under 35 degrees Celsius with the revolving speed of 420rpm step 2, obtain
Two mixtures；
Step 3 magnetizes purified water, and the purified water after part magnetizes and stirring are added into the first mixture
Uniformly, third mixture is obtained；
Step 4, into the second mixture be added remanent magnetization after purified water and stir evenly, obtain the 4th mixing
Object；
Step 5 stirs third mixture and the 4th mixture, and titanium dioxide is at the uniform velocity added while stirring, is added completely into
After continue stirring 75 minutes, stand 80 minutes to get arrive finished product.
Embodiment 5
A kind of environmental protection foam formulations, including following raw material: 1.25 kilograms, 16.6 kilograms of extract solution from aloe, 1.3 public affairs of matrix
Jin, 1.2 kilograms of alkyl glycosides, 1.18 kilograms of aliphatic alcohol polyether, 0.66 kilogram of titanium dioxide, 0.13 kilogram of amide and purified water 85
Kilogram.
Extract solution from aloe is that aloe is smash to slurry at being filtered and being centrifuged after aloe leaf juice, obtains aloe after carrying out circulation concentration
The ethyl alcohol that the mass fraction of 6 times of its weight is 95% is added into aloe condensed juice, is sufficiently stirred, stands under room temperature for inspissated juice
It 2.5 hours, filters, ethyl alcohol is recovered under reduced pressure obtains.
The preparation method of the environmental protection foam formulations, the specific steps are as follows:
Gelatin, extract solution from aloe and alkyl glycosides are mixed evenly step 1, obtain the first mixture；
Matrix, polyethers and amide are mixed evenly step 2, obtain the second mixture；
Partial purification water is added into the first mixture and stirs evenly, obtains third mixture for step 3；
Remaining purified water is added into the second mixture and stirs evenly, obtains the 4th mixture for step 4；
Third mixture and the 4th mixture are stirred, titanium dioxide are at the uniform velocity added in 8 minutes while stirring by step 5
Titanium continues stirring 60 minutes after being added completely into, stand 60 minutes to get finished product is arrived.
The product of embodiment 1 is used in Great Wall Wu Kuang 1302N air return lane, by finished product and water according to 1:1.5-2 when use
Weight ratio be uniformly mixed, net sectional area 17.8m2, the data before use are shown in Table 1, and the data after use are shown in Table 2.
Dust measuring data before 1 use of table
Dust measuring data after 2 use of table
As can be seen from Table 1 and Table 2, the product dustfall efficiency of the embodiment of the present invention 1 reaches 80% or more, has good
Dust-laying effect.
The raw material of this product is mostly the other cleaning industrial chemicals of edible grade, nontoxic, to people, water, air environment and
Material fanout free region；This product Adhering capacity and water compatibility are strong, and expansion rate is fast, and coefficient of foaming reaches 50 times or more, are formed
Subtle foam, can void-free covering fully-mechanized digging machine cutting-cylinder, make cutting completed in foams, fundamentally prevent powder
Diffusion time is slow to external diffusion, and after forming foam for dirt, and foam could slowly degrade at 2-5 hours, and the ratio of foam is great, no
It can disperse with the wind.
After this product forms foam, total volume and total surface area significantly increase, and increase the collision probability with dust, increase
Big dustfall efficiency.
The surface tension of water can be greatly lowered in this product, the speed that the dust that increases sharply is wet.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of environmental protection foam formulations, which is characterized in that the raw material including following parts by weight: 0.8-1.25 parts of gelatin, aloe mention
Take 13-16.6 parts of liquid, 0.75-1.3 parts of matrix, 0.8-1.2 parts of alkyl glycosides, 0.9-1.18 parts of polyethers, titanium dioxide 0.4-
0.66 part, 0.08-0.13 parts of amide and 76-85 parts of purified water.
2. environmental protection foam formulations according to claim 1, which is characterized in that the polyethers uses aliphatic alcohol polyether.
3. it is according to claim 1 environmental protection foam formulations, which is characterized in that the extract solution from aloe be by aloe smash slurry at
It is filtered and is centrifuged after aloe leaf juice, obtained aloe condensed juice after carrying out circulation concentration, its weight is added into aloe condensed juice
The ethyl alcohol that 6-9 times of mass fraction is 95% is sufficiently stirred under room temperature, stands 1-3 hours, filters, ethyl alcohol is recovered under reduced pressure obtains.
4. environmental protection foam formulations according to claim 1, which is characterized in that the titanium dioxide uses partial size for 80-150
The nano-titanium dioxide of nanometer.
5. a kind of preparation method of the environmentally friendly foam formulations as described in claim 1-4 is any, which is characterized in that specific steps are such as
Under:
Gelatin, extract solution from aloe and alkyl glycosides are mixed evenly step 1, obtain the first mixture；
Matrix, polyethers and amide are mixed evenly step 2, obtain the second mixture；
Partial purification water is added into the first mixture and stirs evenly, obtains third mixture for step 3；
Remaining purified water is added into the second mixture and stirs evenly, obtains the 4th mixture for step 4；
Step 5 stirs third mixture and the 4th mixture, and titanium dioxide is at the uniform velocity added while stirring, is added completely into and finishes
After continue stirring 50-80 minute, stand 40-80 minutes to get to finished product.
6. the preparation method of environmental protection foam formulations according to claim 5, which is characterized in that titanium dioxide in the step 5
The addition time of titanium is no less than 5 minutes.
7. the preparation method of environmental protection foam formulations according to claim 5, which is characterized in that the step 1 and step 2
Middle speed of agitator is 270-420rpm, and whipping temp is 25-38 degrees Celsius.
8. the preparation method of environmental protection foam formulations according to claim 5 or 6, which is characterized in that the purified water is adding
Magnetization treatment is carried out before entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326430.5A CN109971427A (en) | 2019-04-23 | 2019-04-23 | A kind of environmental protection foam formulations and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326430.5A CN109971427A (en) | 2019-04-23 | 2019-04-23 | A kind of environmental protection foam formulations and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109971427A true CN109971427A (en) | 2019-07-05 |
Family
ID=67085812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326430.5A Pending CN109971427A (en) | 2019-04-23 | 2019-04-23 | A kind of environmental protection foam formulations and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109971427A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463987A (en) * | 2002-06-26 | 2003-12-31 | 湖南金正方生物科技有限公司 | Process for extracting aloinose |
| CN102719223A (en) * | 2012-06-04 | 2012-10-10 | 李东日 | Coal granule flying inhibitor mixture, and preparation method and application method thereof |
| CN104910866A (en) * | 2015-04-20 | 2015-09-16 | 广东工业大学 | Novel spraying agent for reducing indoor haze, and application thereof |
| CN108285774A (en) * | 2018-01-25 | 2018-07-17 | 山东理工大学 | A kind of New Coal Mine Pao Droplets dedusting agents |
| CN108825292A (en) * | 2018-05-07 | 2018-11-16 | 河南理工大学 | A kind of coal mine novel dust removing foaming agent |
| CN109054752A (en) * | 2018-07-26 | 2018-12-21 | 太原理工大学 | A kind of underground coal mine face is without sulphur foam dust suppression agent |
-
2019
- 2019-04-23 CN CN201910326430.5A patent/CN109971427A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463987A (en) * | 2002-06-26 | 2003-12-31 | 湖南金正方生物科技有限公司 | Process for extracting aloinose |
| CN102719223A (en) * | 2012-06-04 | 2012-10-10 | 李东日 | Coal granule flying inhibitor mixture, and preparation method and application method thereof |
| CN104910866A (en) * | 2015-04-20 | 2015-09-16 | 广东工业大学 | Novel spraying agent for reducing indoor haze, and application thereof |
| CN108285774A (en) * | 2018-01-25 | 2018-07-17 | 山东理工大学 | A kind of New Coal Mine Pao Droplets dedusting agents |
| CN108825292A (en) * | 2018-05-07 | 2018-11-16 | 河南理工大学 | A kind of coal mine novel dust removing foaming agent |
| CN109054752A (en) * | 2018-07-26 | 2018-12-21 | 太原理工大学 | A kind of underground coal mine face is without sulphur foam dust suppression agent |
Non-Patent Citations (1)
| Title |
|---|
| 彭建勋: "《全国煤矿防尘降尘技术》", 30 September 2014, 中国矿业大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108994066A (en) | A kind of swing type soil remediation equipment | |
| CN107214179A (en) | A kind of building rubbish treatment device | |
| CN111087984B (en) | Nano plugging water-based drilling fluid and preparation method and application thereof | |
| CN209476395U (en) | Grinding chamber is used in a kind of production of kaolin | |
| CN107413841A (en) | The microorganism renovation agent and restorative procedure of a kind of heavy-metal contaminated soil | |
| Griffin et al. | Ribonucleic acid synthesis during the differentiation of sporangia in the water mold Achlya | |
| CN111484830B (en) | Environment-friendly high-permeability coal dust suppressant and preparation method thereof | |
| CN105255451B (en) | A kind of activity magnetization water additive for the efficient depositing dust of underground coal mine | |
| CN109971427A (en) | A kind of environmental protection foam formulations and preparation method thereof | |
| CN104531073B (en) | A kind of enhancing is to the dust-inhibitor of grit and coal body infiltration wetting effect | |
| CN207058911U (en) | One kind stirs thoroughly build concrete agitating device | |
| CN103274753B (en) | Red mud compound type foaming agent | |
| CN109530418A (en) | Heavy-metal contaminated soil restorative procedure | |
| CN215197460U (en) | Cement piece crushing equipment for building decoration is exclusively used in | |
| CN109054752A (en) | A kind of underground coal mine face is without sulphur foam dust suppression agent | |
| CN204816869U (en) | Ventilative magnetic separation roller | |
| CN105567035B (en) | Negative ion paint and preparation method thereof | |
| CN106277069B (en) | A kind of liquid phase peels off the method that Natural pyrite prepares nano ultrafine powderses body | |
| CN103253974B (en) | Composite sludge foaming agent | |
| CN103253978A (en) | Coal gangue composite type foaming agent | |
| CN101508503B (en) | Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater | |
| CN204699952U (en) | Thermal power plant pair roller type coal and the elementary sorting equipment of gangue | |
| CN108905994A (en) | A kind of underground water Compound Heavy Metals renovation agent and the preparation method and application thereof | |
| CN206276269U (en) | A kind of pesticide producing high-efficiency stirring dust arrester | |
| CN103274721B (en) | Boron sludge compound type foaming agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |