CN110272219A - It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand - Google Patents
It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand Download PDFInfo
- Publication number
- CN110272219A CN110272219A CN201910727847.2A CN201910727847A CN110272219A CN 110272219 A CN110272219 A CN 110272219A CN 201910727847 A CN201910727847 A CN 201910727847A CN 110272219 A CN110272219 A CN 110272219A
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- Prior art keywords
- machine
- sand
- made sand
- added
- manufacturing
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Classifications
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, comprising: choose block stone, and be added to being tentatively crushed in crusher；Preliminary broken block of stone is added to recursher, and then second-time breakage；Stone after second-time breakage is added to carrying out processing fine crushing in sand making machine, and absorption depositing dust processing is carried out by flue dust of the dust exhaust apparatus to generation；Machine-made Sand after fine crushing is added to carrying out screening process in screening plant；Gumming processing is carried out to the Machine-made Sand after screening, and carries out depositing dust；In Machine-made Sand after adding anionic surfactant to gumming, and carry out uniform mixed processing；Obtain finished product Machine-made Sand.This is used to substitute the manufacturing method of the Machine-made Sand of natural sand, by having peptizaiton to cement granules after concrete mix is added in anionic surfactant, its workability can be improved, reduce unit consumption of water, improve the mobility of concrete mix or reduce unit cement consumption and save cement.
Description
Technical field
The present invention relates to fields more particularly to a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand.
Background technique
Natural sand is divided into river sand and sea sand, and by the exploitation of many years, some areas are exhausted or close exhausted, and manufacturing machine
Sand processed can make a large amount of barren rock resource reutilizations, use the use of made sand to substitute natural sand thus, and Machine-made Sand refers to through sand processed
The sand that machine and other auxiliary devices are process, finished product is more regular, can be required to be processed into different rule according to different process
Then with the sand of size, it is more able to satisfy daily demand, Machine-made Sand there will be the equipment of profession that can just produce qualified applicable sandstone.
And the Machine-made Sand produced in prior art is in the case where water-cement ratio is constant, when being used in concrete according to
A large amount of water pours, and causes concrete slump bigger than normal, and entity quality is caused pitted skin, sand streak, cavity and reinforcing steel bars exposed occur
Deng, if not using a large amount of water fillings, needs to turn down admixture dosage if wanting to get perfect condition at this time and improve sand coarse aggregate ratio, it will certainly
Increase cost.
To solve the above problems, being proposed in the application a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand.
Summary of the invention
(1) goal of the invention
To solve technical problem present in background technique, the present invention proposes a kind of for substituting the manufacture of the Machine-made Sand of natural sand
Method, the present invention can be changed by having peptizaiton to cement granules after concrete mix is added in anionic surfactant
It is apt to its workability, reduces unit consumption of water, improve the mobility of concrete mix or reduces unit cement consumption and save water
Mud.
(2) technical solution
To solve the above problems, the present invention provides a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, comprising:
S1, block stone is chosen, and is tentatively crushed in addition to crusher；
S2, preliminary broken block of stone is added to recursher, and then second-time breakage；
S3, the stone after second-time breakage is added to carrying out processing fine crushing in sand making machine, and by dust exhaust apparatus to the cigarette of generation
Dirt carries out absorption depositing dust processing；
S4, the Machine-made Sand after fine crushing are added to carrying out screening process in screening plant；
S5, gumming processing is carried out to the Machine-made Sand after screening, and carries out depositing dust；
In Machine-made Sand after S6, addition anionic surfactant to gumming, and carry out uniform mixed processing；
S7, finished product Machine-made Sand is obtained.
Preferably, in S1, jaw crusher is selected to carry out preliminary coarse crushing to block stone, and to the soil in the particle of generation
It is discarded.
Preferably, in S2, impact breaker is selected to carry out second-time breakage to preliminary broken block of stone.
Preferably, in S4, in screening plant the diameter value of sieve pore less than 2.9 millimeters, and to until Machine-made Sand fineness
Particle of the modulus less than 2.9 millimeters, which is added in sand making machine, carries out processing fine crushing, until the fineness modulus of Machine-made Sand is less than 2.9 millis
Rice.
Preferably, the making step of anionic surfactant is as follows:
S1, heating and melting will be carried out in naphthalene investmentization naphthalene kettle；
S2, into sulphonation kettle, the addition concentrated sulfuric acid is reacted, and naphthalene sulfonic acids is generated, wherein there are two types of naphthalene sulfonic acids: α-naphthalenesulfonicacid and β-
Naphthalene sulfonic acids；
α-naphthalenesulfonicacid is hydrolyzed for S3 plus water；
Formaldehyde is added dropwise in S4, the backward condensation kettle to the end of hydrolysis, reacts with beta-naphthalenesulfonic-acid and generates naphthalene system sulfonation formaldehyde
Condensation product；
Material after S5, condensation, which enters, to be neutralized in kettle, and liquid alkaline is added dropwise, sulfuric acid superfluous in sulfonating reaction is neutralized, and adjusts
PH value obtains anionic surfactant.
Preferably, stop that liquid alkaline is added dropwise when pH value is in 7-9.
Above-mentioned technical proposal of the invention has following beneficial technical effect:
After it joined anionic surfactant in production mechanism sand, since molecule in anionic surfactant can
The surface for being adsorbed on cement granules of orientation makes cement particle surface with same negative electrical charge, forms same charge electrostatic row
The effect of reprimand, promotes cement granules mutually to disperse, and flocculent structure is disintegrated, and releases by wrapping portion water, flowing is participated in, to have
Effect ground increases the mobility of concrete mix, reduces injection water and increases the phenomenon that Machine-made Sand causes Cost of Concrete to increase
Generation, to achieve the effect that save water mud and save the cost.
Detailed description of the invention
Fig. 1 is proposed by the present invention a kind of for substituting the flow chart of the manufacturing method of the Machine-made Sand of natural sand.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
As shown in Figure 1, proposed by the present invention a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, comprising:
S1, block stone is chosen, and is tentatively crushed in addition to crusher；
S2, preliminary broken block of stone is added to recursher, and then second-time breakage；
S3, the stone after second-time breakage is added to carrying out processing fine crushing in sand making machine, and by dust exhaust apparatus to the cigarette of generation
Dirt carries out absorption depositing dust processing；
S4, the Machine-made Sand after fine crushing are added to carrying out screening process in screening plant；
S5, gumming processing is carried out to the Machine-made Sand after screening, and carries out depositing dust；
In Machine-made Sand after S6, addition anionic surfactant to gumming, and carry out uniform mixed processing；
S7, finished product Machine-made Sand is obtained.
It should be noted that depositing dust processing selection
In the present invention, in cement after adding water mix, due to the hydration of cement granules, so that cement granules show to be formed
Double electrical layers, it is further to form solvation moisture film, and cement particle surface has the charges of different polarity, and then make cement granules it
Between generate the effect of association and cause 10%~30% mixing water to be wrapped in cement so that cement slurry forms flocculated structure
Among particle, the effect for flowing freely and lubricating cannot be participated in, so that the mobility of concrete mix is affected, by life
After joined anionic surfactant when producing Machine-made Sand, due to being adsorbed on of can orienting of molecule in anionic surfactant
The surface of cement granules makes cement particle surface with same negative electrical charge, forms the effect of same charge electrostatic repulsion, promote
Cement granules mutually disperse, and flocculent structure is disintegrated, and release by wrapping portion water, flowing are participated in, to effectively increase coagulation
The mobility of native mixture reduces injection water and increases the generation for the phenomenon that Machine-made Sand causes Cost of Concrete to increase, thus
Achieve the effect that save water mud and save the cost.
In an alternative embodiment, in S1, jaw crusher is selected to carry out preliminary coarse crushing to block stone, and to generation
Particle in soil discarded.
In an alternative embodiment, in S2, impact breaker is selected to carry out two to preliminary broken block of stone
It is secondary broken, broken specification diversification adjustable using its marker size size, and then break off the big of required particle
It is small, so achieved the effect that carry out according to demand using.
In an alternative embodiment, in S4, the diameter value of sieve pore is less than 2.9 millimeters in screening plant, and to straight
Particle to the fineness modulus of Machine-made Sand less than 2.9 millimeters, which is added in sand making machine, carries out processing fine crushing, until the fineness of Machine-made Sand
Modulus is controlled 2.9 by the fineness modulus of Machine-made Sand hereinafter, mix physical performance, the mechanical property of concrete less than 2.9 millimeters
Can, durability index can meet specification and design requirement, so the fineness modulus of Machine-made Sand to the physical property of concrete and
Effect on Mechanical Properties is fairly obvious, therefore wants strict control fineness modulus during employment mechanism sand.
In an alternative embodiment, the making step of anionic surfactant is as follows:
S1, heating and melting will be carried out in naphthalene investmentization naphthalene kettle；
S2, into sulphonation kettle, the addition concentrated sulfuric acid is reacted, and naphthalene sulfonic acids is generated, wherein there are two types of naphthalene sulfonic acids: α-naphthalenesulfonicacid and β-
Naphthalene sulfonic acids；
α-naphthalenesulfonicacid is hydrolyzed for S3 plus water；
Formaldehyde is added dropwise in S4, the backward condensation kettle to the end of hydrolysis, reacts with beta-naphthalenesulfonic-acid and generates naphthalene system sulfonation formaldehyde
Condensation product；
Material after S5, condensation, which enters, to be neutralized in kettle, and liquid alkaline is added dropwise, sulfuric acid superfluous in sulfonating reaction is neutralized, and adjusts
PH value obtains anionic surfactant.
It should be noted that its presence is unfavorable for condensation reaction due to producing α-naphthalenesulfonicacid in sulfonating reaction, because
This is needed plus α-naphthalenesulfonicacid is hydrolyzed water.
In an alternative embodiment, stop that liquid alkaline is added dropwise when pH value is in 7-9.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (6)
1. a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand characterized by comprising
S1, block stone is chosen, and is tentatively crushed in addition to crusher；
S2, preliminary broken block of stone is added to recursher, and then second-time breakage；
S3, the stone after second-time breakage is added to carrying out processing fine crushing in sand making machine, and by dust exhaust apparatus to the cigarette of generation
Dirt carries out absorption depositing dust processing；
S4, the Machine-made Sand after fine crushing are added to carrying out screening process in screening plant；
S5, gumming processing is carried out to the Machine-made Sand after screening, and carries out depositing dust；
In Machine-made Sand after S6, addition anionic surfactant to gumming, and carry out uniform mixed processing；
S7, finished product Machine-made Sand is obtained.
2. according to claim 1 a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, which is characterized in that in S1
In, select jaw crusher to carry out preliminary coarse crushing to block stone, and discard to the soil in the particle of generation.
3. according to claim 1 a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, which is characterized in that in S2
In, select impact breaker to carry out second-time breakage to preliminary broken block of stone.
4. according to claim 1 a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, which is characterized in that in S4
In, in screening plant the diameter value of sieve pore less than 2.9 millimeters, and to until Machine-made Sand of the fineness modulus less than 2.9 millimeters
Grain, which is added in sand making machine, carries out processing fine crushing, until the fineness modulus of Machine-made Sand is less than 2.9 millimeters.
5. according to claim 1 a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, which is characterized in that yin from
The making step of sub- surfactant is as follows:
S1, heating and melting will be carried out in naphthalene investmentization naphthalene kettle；
S2, into sulphonation kettle, the addition concentrated sulfuric acid is reacted, and naphthalene sulfonic acids is generated, wherein there are two types of naphthalene sulfonic acids: α-naphthalenesulfonicacid and β-
Naphthalene sulfonic acids；
α-naphthalenesulfonicacid is hydrolyzed for S3 plus water；
Formaldehyde is added dropwise in S4, the backward condensation kettle to the end of hydrolysis, reacts with beta-naphthalenesulfonic-acid and generates naphthalene system sulfonation formaldehyde
Condensation product；
Material after S5, condensation, which enters, to be neutralized in kettle, and liquid alkaline is added dropwise, sulfuric acid superfluous in sulfonating reaction is neutralized, and adjusts
PH value obtains anionic surfactant.
6. according to claim 5 a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand, which is characterized in that in PH
Value stops that liquid alkaline is added dropwise when 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727847.2A CN110272219A (en) | 2019-08-08 | 2019-08-08 | It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727847.2A CN110272219A (en) | 2019-08-08 | 2019-08-08 | It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand |
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| CN110272219A true CN110272219A (en) | 2019-09-24 |
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| CN201910727847.2A Pending CN110272219A (en) | 2019-08-08 | 2019-08-08 | It is a kind of for substituting the manufacturing method of the Machine-made Sand of natural sand |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620583A (en) * | 2020-06-18 | 2020-09-04 | 十堰长江造型材料有限公司 | Preparation method of natural efficient synthetic sand for precoated sand |
| CN113171865A (en) * | 2021-04-14 | 2021-07-27 | 中交投资南京有限公司 | Preparation method of high-quality machine-made sand |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620583A (en) * | 2020-06-18 | 2020-09-04 | 十堰长江造型材料有限公司 | Preparation method of natural efficient synthetic sand for precoated sand |
| CN113171865A (en) * | 2021-04-14 | 2021-07-27 | 中交投资南京有限公司 | Preparation method of high-quality machine-made sand |
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