CN115477504B - Wet-mixed mortar based on wet stone powder and preparation process thereof - Google Patents
Wet-mixed mortar based on wet stone powder and preparation process thereof Download PDFInfo
- Publication number
- CN115477504B CN115477504B CN202211226654.7A CN202211226654A CN115477504B CN 115477504 B CN115477504 B CN 115477504B CN 202211226654 A CN202211226654 A CN 202211226654A CN 115477504 B CN115477504 B CN 115477504B
- Authority
- CN
- China
- Prior art keywords
- stirring
- wet
- cavity
- stone powder
- piece
- 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.)
- Active
Links
Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
- B28C5/006—Methods for mixing involving mechanical aspects
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The application discloses wet-mixed mortar based on wet stone powder, which is characterized in that: the composition comprises the following components: 8 to 15 parts of cement, 4 to 8 parts of mineral admixture, 5.5 to 10 parts of wet stone powder, 62 to 71 parts of sand, 0.1 to 0.3 part of additive and 11 to 15 parts of water; the application can prepare the wet-mixed mortar with economical and environment-friendly performance without complex procedure treatment.
Description
Technical Field
The application belongs to the technical field of building materials, and particularly relates to wet-mixed mortar based on wet stone powder and a preparation process thereof.
Background
The wet-mixed mortar is a novel building material prepared from cementing materials, fine aggregates, admixture, additive and water by premixing through mechanical equipment according to a certain proportion, has the characteristics of various varieties, excellent performance, environmental protection and the like, can be produced mechanically through computer metering control, is convenient to use, and is widely applied to building engineering to realize surface protection and decoration of building structures by gradually replacing the traditional mortar. At present, the prices of raw materials such as cement, fly ash, quartz sand and the like for producing wet-mixed mortar are continuously increased, and the adoption of more economic and easily available raw materials for preparing wet-mixed mortar with qualified performance is a main technical approach for reducing the cost. After all raw materials are mixed at a mixing station, the wet-mixed mortar is transported to the site for construction, and due to the influence of long transportation path or other uncertain factors, the performance of the wet-mixed mortar is possibly unstable during construction, and how to keep the construction performance of the wet-mixed mortar for a long time is also a key problem which must be considered for production and application.
The stone powder is an inevitable byproduct in the production process of the machine-made aggregate, and a large amount of water resources are consumed in the production process of the wet machine-made sand aggregate to treat the finished product, so that the surface of the machine-made aggregate is clean, and the stone powder content is low. And (3) precipitating the wastewater containing a large amount of stone powder in a sedimentation tank by a flocculation method, and then further performing filter pressing dehydration treatment to obtain mud cake-shaped wet stone powder. Wet stone powder is difficult to use due to poor performance compatibility, and is usually disposed by a landfill method, but the disposal method can have adverse effects on the environment, for example, the high concentration of aluminum after being filled by mud cakes treated by polyaluminium chloride can lead to fixation of phosphorus in soil and prevent growth of plants. If the wet stone powder thickening and filling effects are utilized, the wet mixed mortar with qualified performance is prepared, so that the production cost of the mortar can be reduced, and the solid waste emission can be reduced.
Patent CN201811321602.1 discloses a ready-mixed wet-mixed mortar and a method for preparing the ready-mixed wet-mixed mortar, wherein fly ash and residual slurry of pipe piles are used as raw materials, and industrial byproducts are secondarily utilized to reduce production cost. Patent CN201510493481.9 discloses a wet-mixed mortar doped with iron tailing sand and a preparation method thereof, wherein waste tailing sand is mainly used as fine aggregate to reduce production cost. Patent CN202010684866.4 discloses a wet-mixed mortar and a preparation process, and the production cost is reduced by mainly preparing a cementing material by using alkaline residues. At present, no wet-mixed mortar technology which utilizes wet stone powder to prepare economic and environment-friendly wet-mixed mortar with good construction performance retention capability exists.
Disclosure of Invention
The summary of the application is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
The application provides wet-mixed mortar based on wet stone powder and a preparation process thereof, aiming at overcoming the defects of the prior art.
In order to achieve the above purpose, the present application adopts the following technical scheme: a wet-mixed mortar based on wet stone powder is characterized in that: the composition comprises the following components: 8 to 15 parts of cement, 4 to 8 parts of mineral admixture, 5.5 to 10 parts of wet stone powder, 62 to 71 parts of sand, 0.1 to 0.3 part of additive and 11 to 15 parts of water.
Further, the sand is machine-made sand or river sand with the fineness modulus of 2.3-3.0.
Furthermore, the additive is a retarding type high-performance water reducing agent.
The application also provides a method for preparing wet-mixed mortar based on wet stone powder, which comprises the following steps: a. adopting a sampling drying method rapid detector to test the water content of wet stone powder, and adjusting the construction mixing ratio of the wet mixed mortar through the water content; b. according to the construction mixing proportion, adding wet stone powder into stirring equipment, stirring and dispersing mud cake-shaped wet stone powder at the speed of 20-30 r/min for 2-4 min, adding sand, stirring and dispersing at the speed of 20-30 r/min for 2-4 min, adding water, and stirring and dispersing at the speed of 30-60 r/min for 1-3 min; c. adding cement and mineral admixture into the mixture obtained in the step b, stirring for 2-4 min at the speed of 30-60 r/min, and adding additive at the same time to ensure that the consistency of the wet-mixed mortar is 90-110 mm; d. discharging the mixed mortar from the stirring equipment, and cleaning the inner wall of the stirring equipment; the stirring device comprises: a stirring tank configured to have a stirring chamber for accommodating mortar; the first connecting shaft penetrates through the stirring cavity; the scraping plate is movably connected to the first connecting shaft; the driving piece is used for driving the stirring tank to rotate relative to the first connecting shaft; the mounting rack is used for supporting the stirring tank; the stirring tank is rotationally connected to the mounting frame, and a feed inlet is arranged on the stirring tank; when the feed inlet is vertically upwards, the scraping plate is separated from contact with the inner wall of the stirring cavity; when the feed inlet is vertically downward, the scraping plate is contacted with the inner wall of the stirring cavity.
Further, the stirring device further includes: the support frame is arranged on the mounting frame; the second connecting shaft is arranged on the supporting frame; the mounting frame is provided with a connecting hole for the second connecting shaft to pass through, and the second connecting shaft is arranged on the supporting frame.
Further, the stirring device further includes: a connecting block connected to the first connecting shaft; the vibration piece intermittently impacts the inner wall of the stirring cavity to enable the side wall of the stirring cavity to vibrate; the scraping plate is arranged on the connecting block.
Further, a separation cavity is arranged on the stirring tank, and a control piece for pushing the scraping plate to move away from the inner wall of the stirring tank is arranged in the separation cavity.
Further, a plurality of thrust pieces for pushing the vibration piece to move towards the middle of the stirring cavity are arranged on the control piece, and gaps exist between the adjacent thrust pieces.
Further, a first support ring and a second support ring are arranged in the separation cavity, and the control piece is arranged between the first support ring and the second support ring.
Further, be equipped with first activity chamber on the connecting block, be equipped with the second connecting rod on the scraper blade, the second connecting rod wears to locate first activity intracavity, and first activity intracavity is equipped with supporting spring, and second connecting rod one end is equipped with the magnetic plate, and the control is made for magnetic material, and magnetic plate magnetism is repulsed with the control magnetism.
The application has the advantages that: the wet-mixed mortar based on the wet stone powder can be prepared without complex process treatment, and the wet-mixed mortar with economical and environment-friendly performance is prepared.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application.
In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a schematic view of a stirring device according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the first connecting shaft of the stirring device of the embodiment of FIG. 1;
FIG. 3 is an enlarged view of the embodiment of FIG. 1 at the connection block of the stirring device;
FIG. 4 is a cross-sectional view of the embodiment of FIG. 1 at the agitator tank of the agitation apparatus;
FIG. 5 is a cross-sectional view at a first connecting shaft of a stirring device in accordance with another embodiment of the present application;
FIG. 6 is an enlarged view of the embodiment of FIG. 5 at the connection block of the stirring device;
FIG. 7 is a cross-sectional view at a first connecting shaft of a stirring device according to yet another embodiment of the present application;
FIG. 8 is an enlarged view of the embodiment of FIG. 7 at the flights of the stirring device;
fig. 9 is an enlarged view of the embodiment of fig. 7 at the threaded rod of the stirring device.
The meaning of the reference numerals in the figures is as follows:
101. a mounting frame; 102. a support frame; 1021. a third support ring; 1022. a second connecting shaft; 1023. a hand wheel; 103. a stirring tank; 103a, a compartment; 1031. a gear ring; 104. a housing; 105. a first mounting plate; 106. a driving member; 1061. a third driving wheel; 107. a pressing plate; 108. a roller; 109. a first drive shaft; 1091. a second drive shaft; 1092. a first driving wheel; 110. a chain; 111. a first connecting shaft; 1111. a first connecting rod; 112. a scraper; 1121. a second connecting rod; 1122. a magnetic plate; 1123. a support spring; 113. a fixed rod; 114. a connecting block; 114a, a first active cavity; 114b, a second active cavity; 114c, a flow guiding surface; 115. a vibrating member; 1151. a first connecting spring; 116. a control member; 1161. a thrust piece; 117. a second support ring; 118. a first support ring;
201. a first connecting shaft; 202. a motor; 203. a wire roller; 204. a connecting block; 204a, a third active cavity; 205. a vibrating member; 2051. a ball; 206. a movable plate; 2061. a magnetic block; 2062. a second connecting spring; 207. a connecting rope;
301. a scraper; 301a, a vertical section; 301b, inclined section; 302. a first air bag; 303. a second air bag; 304. a second push plate; 3041. a bump; 305. a metal foil; 306. an aluminum foil; 307. a first push plate; 308. a fixing plate; 3081. an end plate; 309. a threaded rod.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Wet-mixed mortar mixed with wet stone powder and having strength grade M10 is prepared from the following components in parts by weight: 9.5 parts of cement4.0 parts of mineral admixture, 9.5 parts of wet stone powder (the mass for removing water), 63 parts of sand, 0.1 part of additive and 13.5 parts of water; the wet stone powder has a screen residue of 15% at 45 μm, a 28d activity index of 66%, a loss on ignition of 2.2% and a density of 2.67g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The sand is machine-made sand with fineness modulus of 2.8; the additive is a retarding high-performance water reducer.
The preparation process of the wet-mixed mortar comprises the following steps:
s1, measuring the water content of wet stone powder by adopting a sampling drying method to be 4.5%, and adjusting the construction mixing ratio of wet mixed mortar by the water content, wherein the water content of the wet stone powder is 9.9275 parts, the water content of the wet stone powder is 13.0275 parts, and other materials are unchanged;
s2, adding wet stone powder into stirring equipment according to a construction mixing ratio, stirring and dispersing mud cake-shaped wet stone powder at a speed of 20r/min for 2min, adding sand, stirring and dispersing at a speed of 20r/min for 2min, adding water, and stirring and dispersing at a speed of 30r/min for 1min;
s3, adding cement and mineral admixture into the mixture obtained in the step S2, stirring for 2min at the speed of 30r/min, and adding the admixture at the same time to ensure that the consistency of the wet-mixed mortar is 90-110 mm;
and S4, discharging the mixed mortar from the stirring equipment, and cleaning the inner wall of the stirring equipment.
The prepared wet-mixed mortar has the consistency of 98mm, the water retention of 89%, the consistency loss rate of 2 hours of 2.37% and the compressive strength of 12.3MPa, and has good construction performance and mechanical properties meeting the requirements.
As shown in fig. 1 to 4, the stirring device includes a stirring tank 103, a first connecting shaft 111, a scraper 112, a driving member 106, a mounting frame 101, and a supporting frame 102.
Mixing tank 103 is configured to have a mixing chamber for holding mortar; the first connecting shaft 111 penetrates through the stirring cavity; the scraper 112 is movably connected to the first connecting shaft 111; the driving member 106 is used for driving the stirring tank 103 to rotate relative to the first connecting shaft 111; the mounting frame 101 is used for supporting the stirring tank 103, a plurality of rollers 108 are arranged at the bottom of the mounting frame 101, the mounting frame 101 can move according to the requirement, a first mounting plate 105 is arranged on the mounting frame 101, a driving piece 106 is arranged on the first mounting plate 105, and the driving piece 106 is a motor; the stirring tank 103 is arranged on the support frame 102, the support frame 102 is rotatably connected to the mounting frame 101, a second connecting shaft 1022 is arranged on the support frame 102, a connecting hole for the second connecting shaft 1022 to pass through is formed in the mounting frame 101, a hand wheel 1023 is arranged at one end of the second connecting shaft 1022, the hand wheel 1023 is arranged on the outer side of the mounting frame 101, and the first connecting shaft 111 is fixedly connected to the support frame 102; the stirring tank 103 is provided with a feed inlet which is arranged at the top of the stirring tank 103; when the feed inlet is vertically upwards, the scraping plate 112 is out of contact with the inner wall of the stirring cavity; when the feed inlet is vertically downward, the scraper 112 contacts the inner wall of the stirring cavity.
After the raw materials are put into the stirring cavity from the feeding port, the feeding port is in a vertical upward state at the moment, the scraping plate 112 is in contact with the inner wall of the stirring cavity, the driving piece 106 drives the stirring tank 103 to rotate relative to the first connecting shaft 111, the scraping plate 112 blocks the materials in the stirring tank 103, so that the materials and the stirring tank 103 move relatively to play a role in stirring the materials; after the mortar stirring is completed, the hand wheel 1023 is rotated, the second connecting shaft drives the support frame 102 to rotate, the stirring tank 103 rotates along with the support frame 102, the stirring tank 103 rotates to a state that the feed inlet faces downwards, the scraping plate 112 contacts with the inner wall of the stirring cavity, mortar in the stirring cavity is discharged from the feed inlet, the driving piece 106 drives the stirring tank 103 to rotate, the stirring tank 103 rotates relative to the scraping plate 112, the scraping plate 112 contacts with the inner wall of the stirring cavity to clean the inner wall of the stirring cavity, mortar on the inner wall of the stirring cavity is scraped, residues in the stirring cavity are reduced, and the phenomenon that the mortar on the inner wall of the stirring cavity is adhered to the inner wall of the stirring cavity after being dried to influence the next use of the stirring cavity is avoided.
The state of the scraping plate 112 is adjusted through the rotated position of the stirring tank 103, so that the scraping plate 112 is not contacted with the inner wall of the stirring cavity when stirring mortar, abrasion of the scraping plate 112 and the inner wall of the stirring cavity is reduced, meanwhile, the stirring tank 103 rotates relative to the mortar, the scraping plate 112 is resistant to the mortar, the resistance to rotation of the stirring tank 103 is reduced in a mode that the scraping plate 112 and the inner wall of the stirring cavity are separated from contact, and the output power of the driving piece 106 is reduced; after the stirring tank 103 is turned over, the scraping plate 112 is in contact with the inner wall of the stirring cavity, mortar is discharged from the feeding hole, the resistance on the scraping plate 112 is reduced, the overall mass of the stirring tank 103 is reduced, the energy consumption of the driving piece 106 is not increased even if the scraping plate 112 is in contact with the inner wall of the stirring cavity, the stirring tank 103 rotates relative to the scraping plate 112, the inner wall of the stirring tank 103 is cleaned by the scraping plate 112, and the residual mortar on the inner wall of the stirring cavity is reduced.
The mounting frame 101 is provided with a housing 104, the side wall of the mounting frame 101 is provided with a second mounting plate, the first mounting plate 105 is arranged below the second mounting plate, the housing 104 is covered on the second mounting plate, the mounting frame 101 is provided with a first through hole, the first through hole and the connecting hole are oppositely arranged, the support frame 102 is provided with a second through hole corresponding to the second through hole, a first transmission shaft 109 is penetrated in the first through hole, one end of the first transmission shaft 109 is provided with a first transmission wheel 1092, the other end of the first transmission shaft 109 is provided with a second transmission shaft 1091, the first transmission wheel 1092 is arranged in the housing 104, the second transmission shaft 1091 is penetrated in the second through hole, one end of the second transmission shaft 1091 is provided with a second transmission wheel, the side wall of the stirring tank 103 is provided with a gear ring 1031 matched with the second transmission wheel, the support frame 102 is provided with a third support ring 1021, the side wall of the stirring tank 103 is provided with a convex ring, the convex ring is arranged below the gear ring 1031, the convex ring is arranged on the third support ring 1021 through a bearing, the third support ring 1021 is connected with a pressing plate 107, and the convex ring is fixed on the third support ring 1021 through the pressing plate 107; the output shaft of the driving member 106 is provided with a third driving wheel 1061, and the third driving wheel 1061 and the first driving wheel 1092 are in driving engagement by a chain 110.
When the driving piece 106 drives the third driving wheel 1061 to rotate, the third driving wheel 1061 transmits power to the first driving wheel 1092 through the chain 110, and the stirring tank 103 is driven to rotate by the cooperation of the second driving wheel and the gear ring 1031 to provide power for the rotation of the stirring tank 103; the second connecting shaft 1022 and the first transmission shaft 109 cooperate with each other to provide supporting force for the supporting frame 102, and connect the supporting frame 102 to the mounting frame 101; when the stirring tank 103 is turned over, the driving piece 106 stops working, the hand wheel 1023 is rotated, the hand wheel 1023 drives the second connecting shaft 1022 to rotate, the second connecting shaft 1022 rotates in the connecting hole, the first transmission shaft 109 rotates in the first through hole, the stirring tank 103 rotates 180 degrees, mortar in the stirring tank 103 is discharged, and after the stirring tank 103 is turned over, the driving piece 106 can still rotate through the stirring tank 103 driven by the second transmission wheel, so that the cleaning of the inner wall of the stirring cavity is realized; the second connecting shaft can be driven by the driving piece to rotate, so that the stirring tank can be turned over.
The first connecting shaft 111 is provided with a first connecting rod 1111, one end of the first connecting rod 1111 is provided with a connecting block 114, the connecting block 114 is provided with a first movable cavity 114a, the scraper 112 is provided with a second connecting rod 1121, the second connecting rod 1121 penetrates through the first movable cavity 114a, and the first movable cavity 114a is internally provided with a supporting spring 1123; the side wall of the connecting block 114 is provided with a guide surface 114c, and the guide surface 114c forms a conical structure on the side wall of the connecting block 114.
When stirring the mortar, the second connecting rod 1121 is in the first movable cavity 114a, the scraping plate 112 is not contacted with the inner wall of the stirring cavity, the stirring tank 103 drives the mortar to rotate, the mortar moves relative to the connecting block 114, the sand is pushed in different directions by utilizing the arrangement of the flow guide surface, the flow guide effect is achieved on the mortar, the stirring effect on the mortar is promoted, the resistance born by the stirring tank 103 during rotation is reduced, and meanwhile, the residual mortar on the connecting block 114 is reduced.
The connecting block 114 is provided with a second movable cavity 114b, the second movable cavity 114b is arranged above the first movable cavity 114a, one end of the second movable cavity 114b is provided with a first connecting spring 1151, and one end of the first connecting spring 1151 is provided with a vibration piece 115; a separation cavity 103a is formed in the side wall of the stirring tank 103, a control piece 116 for pushing the scraper 112 to move away from the inner wall of the stirring tank 103 is arranged in the separation cavity 103a, the control piece 116 is of an annular structure, a plurality of pushing pieces 1161 for pushing the vibration piece 115 to move towards the middle of the stirring cavity are arranged on the control piece 116, gaps exist between the adjacent pushing pieces 1161, a first supporting ring 118 and a second supporting ring 117 are arranged in the separation cavity 103a, the first supporting ring 118 is arranged below the second supporting ring 117, and the control piece 116 is arranged between the first supporting ring and the second supporting ring; the vibration piece 115, the control piece 116 and the thrust piece 1161 are all made of magnets, one end of the second connecting rod 1121 is provided with a magnetic plate 1122, the magnetism of the magnetic plate 1122 is repulsive to the magnetism of the control piece 116, and the magnetism of the thrust piece 1161 is repulsive to the magnetism of the vibration piece 115.
When the feed inlet is in a vertical upward state, mortar in the stirring tank 103 is stirred, the control piece 116 is arranged on the first support ring, the control piece 116 is positioned on one side of the magnetic plate 1122, the magnetic force on the control piece 116 acts on the magnetic plate 1122, the magnetic plate 1122 is pushed into the first movable cavity 114a, a gap is reserved between the scraping plate 112 and the inner wall of the stirring cavity, the resistance to rotation of the stirring tank 103 is reduced, and the stirring effect on the mortar is achieved; when the stirring tank 103 rotates to the state that the feed inlet is downward, the control piece 116 moves downward to fall on the second support ring under the action of gravity, at this time, the control piece 116 is staggered with the magnetic plate 1122, the magnetic force born by the magnetic plate 1122 is reduced, the support spring 1123 pushes the magnetic plate 1122 to move to the outer side of the first movable cavity 114a, the magnetic plate 1122 drives the scraping plate 112 to move together, and the scraping plate 112 abuts against the inner wall of the stirring cavity; when the control piece 116 is positioned on the second support ring, the thrust piece 1161 is positioned on one side of the vibration piece 115, when the driving piece 106 drives the stirring tank 103 to rotate, the thrust piece 1161 is intermittently aligned with the vibration piece 115, when the thrust piece 1161 is aligned with the vibration piece 115, the influence of magnetic force on the thrust piece 1161 on the vibration piece 115 is maximum, the thrust piece 1161 pushes the vibration piece 115 to move into the second movable cavity 114b, the first connecting spring 1151 is in a compressed state, after the thrust piece 1161 and the vibration piece 115 are staggered, the thrust of the thrust piece 1161 on the vibration piece 115 is reduced until the thrust is completely disappeared, the first connecting spring 1151 pushes the vibration piece 115 to extend out of the second movable cavity 114b, the vibration piece 115 impacts on the scraper 112, vibration is generated on the scraper 112, the vibration on the scraper 112 is transmitted to the inner wall of the stirring tank 103, the vibration on the stirring cavity is enlarged under the arrangement of the separation cavity 103a, the inner wall of the stirring cavity is enabled to generate more intense vibration, and the cleaning effect on the inner wall of the stirring cavity is promoted in cooperation with the scraper 112; when the stirring cavity rotates, the thrust piece 1161 intermittently rotates to one side of the vibration piece 115, so that the vibration piece 115 intermittently impacts the scraping plate 112, and accordingly continuous vibration is generated on the inner wall of the whole stirring cavity, and the cleaning effect on the inner wall of the stirring cavity is improved.
The support frame 102 is provided with a fixed groove, the mounting frame 101 is provided with a fixed rod 113 in a penetrating way, the fixed rod 113 is inserted into the fixed groove to fix the support frame 102 at the current position, movement of the stirring tank 103 during use is avoided, and the use reliability of the stirring tank 103 is improved; when the stirring tank is turned over, the fixing rod is pulled out of the fixing groove, so that the stirring tank can be turned over normally, and the inside of the stirring tank is cleaned.
As shown in fig. 5 to 6, as a further preferable scheme, one end of the second movable cavity is provided with a third movable cavity 204a, a third through hole is formed in the side wall of the third movable cavity 204a, a second connecting spring 2062 is arranged on the inner wall of the second movable cavity, one end of the second connecting spring 2062 is provided with a movable plate 206, a magnetic block 2061 is arranged on the movable plate 206, the magnetic block 2061 penetrates through the third through hole, part of the magnetic block 2061 is positioned in the second movable cavity, and the magnetism of the magnetic block 2061 is attracted with the magnetism of the vibration piece 205; the first connecting shaft 201 is provided with a first cavity, the bottom of the support frame is provided with a motor 202, an output shaft of the motor 202 is provided with a wire roller 203, the wire roller 203 is arranged in the first cavity in a penetrating mode, the movable plate 206 is provided with a connecting rope 207, one end of the connecting rope 207 is fixedly connected to the wire roller 203, and the motor 202 is a variable frequency motor 202.
In this embodiment, the control member is not provided with a thrust member, and the movement of the vibration member 205 is driven only by the magnetic block 2061.
After the stirring tank rotates until the feed inlet faces downwards, mortar is discharged from the feed inlet, the wire roller 203 driven by the motor 202 intermittently rotates, the connecting rope 207 intermittently pulls the movable plate 206 to move in the third movable cavity 204a, after the movable plate 206 moves in the third movable cavity 204a, the distance between the magnetic block 2061 and the vibration piece 205 is increased, the first connecting spring pushes the vibration piece 205 to extend out of the second movable cavity, and vibration is generated on the inner wall of the stirring cavity; after the stirring tank rotates for one circle, the motor 202 changes the output power, so that the movable plate 206 impacts on the inner wall of the stirring cavity at a different position compared with the previous circle; specifically, agitator tank is rotating first round time, shake piece 205 strike stirring intracavity wall once when agitator tank rotates 0.2 round, agitator tank is rotating second round time, shake piece 205 strike stirring intracavity wall once when agitator tank rotates 0.4 round each time, agitator tank is rotating the third round time, shake piece 205 strike stirring intracavity wall once more when agitator tank rotates 0.2 round each time, so relapse, make the agitator tank have different contact points with shake piece 205 when rotating adjacent round to produce vibrations on the different positions of agitator tank, promote the vibration homogeneity on the agitator tank, promote the cleaning effect to the agitator tank.
One end of the vibration piece 205 is provided with a groove, a ball 2051 is arranged in the groove, and the ball 2051 can rotate in the groove and cannot be separated from the groove; the scraping plate is provided with a fourth through hole for the vibration piece 205 to pass through, and the vibration piece 205 directly passes through the fourth through hole to strike the inner wall of the stirring cavity when extending out of the second movable cavity, so that the vibration effect of the inner wall of the stirring cavity is improved; the balls 2051 are in contact with the inner wall of the stirring cavity, so that the friction force between the vibration piece 205 and the inner wall of the stirring cavity is reduced, the abrasion between the vibration piece 205 and the inner wall of the stirring cavity is reduced, the resistance to rotation of the stirring tank is reduced, and the energy consumption of the driving piece is reduced.
As shown in fig. 7 to 9, as another preferred scheme, a second cavity is formed on the partition plate, a first air bag 302 and a second air bag 303 are arranged in the second cavity, the scraper 301 comprises a vertical section 301a and an inclined section 301b, the inclined section 301b is arranged at the top of the vertical section 301a, the scraper 301 can be in contact with the inner wall of the whole stirring tank, the first air bag 302 is arranged in the second cavity of the vertical section 301a, the second air bag 303 is arranged in the second cavity of the inclined section 301b, one side wall of the scraper 301 close to the interior of the stirring cavity is made of rubber materials, a plurality of metal sheets 305 are adhered to the side wall, the rubber side wall of the scraper 301 is protected by the metal sheets 305, and abrasion of the rubber side wall of the scraper 301 is reduced; the scraping plate 301 is provided with a first through groove for the vibration piece to pass through, and the first air bag 302 is provided with a second through groove corresponding to the first through groove; a first push plate 307 is arranged in the second cavity of the vertical section 301a, and the first push plate 307 is positioned at the top of the first air bag 302; the second cavity of the inclined section 301b is provided with a fixed plate 308, the fixed plate 308 is movably connected with a second push plate 304, the second push plate 304 is arranged at the bottom end of the second air bag 303, and the side wall of the second push plate 304 is provided with a bump 3041.
When the stirring tank is placed for a period of time and then reused, the stirring tank rotates to a state that the feeding port faces downwards, the driving piece drives the stirring tank to rotate, the vibration piece intermittently stretches out from the second movable cavity, the vibration piece is inserted into the first through groove and then presses the inner wall of the second through groove, the inner wall of the second through groove is extruded to deform due to the insertion of the vibration piece, the middle part of the first air bag 302 is extruded and then expands upwards, the first air bag 302 pushes the first push plate 307 to move upwards, the first push plate 307 moves upwards to prop against the bottom of the bump 3041, the first push plate 307 pushes the second push plate 304 to move upwards, the second push plate 304 extrudes the second air bag 303 to expand and deform, the rubber side walls of the scraping plate 301 are extruded by the expansion of the first air bag 302 and the second air bag 303, the rubber side walls of the scraping plate 301 are expanded and deformed, the rubber side walls drive the metal sheets 305 to be far away from each other, and the dried mortar attached to the surface of the metal sheets 305 are cracked, so that the side walls of the scraping plate 301 are cleaned conveniently, and the side walls of the scraping plate 301 are cleaned conveniently.
One end of the fixed plate 308 is provided with an end plate 3081, a fifth through hole is formed in the end plate 3081, a threaded rod 309 is rotationally connected to the fifth through hole, a threaded hole is formed in the top of the second cavity of the inclined section 301b, and the threaded rod 309 penetrates through the threaded hole; when the stirring tank is normally used, the threaded rod 309 is rotated to enable the threaded rod 309 to move out of the threaded hole, the end plate 3081 does not squeeze the second air bag 303, the distance between the second push plate 304 and the first push plate 307 is increased, the first push plate 307 is not contacted with the second push plate 304 when the vibration piece is inserted into the first through groove to deform the first air bag 302, and the vibration piece impacts on the inner wall of the stirring cavity to enable the inner wall of the stirring cavity to vibrate, so that the cleaning effect on the inner wall of the stirring cavity is improved; when the stirring tank is reused after being placed for a period of time, the threaded rod 309 is rotated to enable the threaded rod 309 to move into the second cavity, the threaded rod 309 pushes the end plate 3081 to move to push the second air bag 303, the second push plate 304 approaches to the first push plate 307, the inner wall of the second through groove is deformed when the vibration piece is inserted into the first through groove, the first air bag 302 is inflated to push the first push plate 307 to move, the first push plate 307 abuts against the protruding block 3041 to push the second push plate 304 to move, and the second push plate 304 presses the second air bag 303 to deform the second air bag 303, so that mortar on the side wall of the scraping plate 301 is cleaned.
An aluminum foil 306 is arranged between adjacent metal sheets 305 on the scraper 301, the middle part of the aluminum foil 306 is bent towards the side wall direction of the scraper 301, and the aluminum foil 306 is used for closing gaps between the metal sheets 305, so that mortar fragments are prevented from entering between the two metal sheets 305; when the rubber side wall of the scraper 301 expands and deforms, two adjacent metal sheets 305 are far away from each other, the aluminum foil 306 expands outwards after being stretched, mortar broken mud between the two metal sheets 305 is pushed out, mortar residues on the scraper 301 are reduced, and the cleaning effect of the scraper 301 is improved.
In another embodiment of the application, wet-mixed mortar mixed with wet stone powder and having the strength grade of M15 is prepared, and the wet-mixed mortar is prepared by the following components in parts by weight: 12 parts of cement, 5 parts of mineral admixture, 7.5 parts of wet stone powder (the mass of removed water), 65 parts of sand, 0.2 part of additive and 12.1 parts of water; the wet stone powder has a screen residue of 10% at 45 μm, a 28d activity index of 67%, a loss on ignition of 2.1% and a density of 2.66g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The sand is machine-made sand with fineness modulus of 2.6; the additive is a retarding high-performance water reducer;
the preparation process of the wet-mixed mortar comprises the following steps:
s1, measuring the water content of wet stone powder to be 5.2% by adopting a sampling drying method, and adjusting the construction mixing ratio of wet mixed mortar by the water content, wherein the water content of the wet stone powder is changed to 7.89 parts, the water is changed to 12.49 parts, and other materials are unchanged;
s2, adding wet stone powder into stirring equipment according to a construction mixing ratio, stirring and dispersing mud cake-shaped wet stone powder at a speed of 25r/min for 3min, adding sand, stirring and dispersing at a speed of 25r/min for 3min, adding water, and stirring and dispersing at a speed of 45r/min for 2min;
s3, adding cement and mineral admixture into the mixture obtained in the step S2, stirring for 2min at the speed of 45r/min, and adding the admixture at the same time to ensure that the consistency of the wet-mixed mortar is 90-110 mm;
and S4, discharging the mixed mortar from the stirring equipment, and cleaning the inner wall of the stirring equipment.
The prepared wet-mixed mortar has the consistency of 95mm, the water retention of 90%, the consistency loss rate of 2 hours of 2.1% and the compressive strength of 18.7MPa, and has good construction performance and mechanical properties meeting the requirements.
In a further embodiment of the application, wet-mixed mortar with wet stone powder and strength grade M205 is prepared, and the wet-mixed mortar is prepared by the following components in parts by weight: 14 parts of cement, 6 parts of mineral admixture, 7 parts of wet stone powder (mass for removing water), 68 parts of sand and 0.3 part of additive11.5 parts of water; the wet stone powder has a screen residue of 9% at 45 μm, a 28d activity index of 68%, a loss on ignition of 2.2% and a density of 2.68g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The sand is machine-made sand with fineness modulus of 2.6; the additive is a retarding high-performance water reducer;
the preparation process of the wet-mixed mortar comprises the following steps:
s1, measuring the water content of wet stone powder by adopting a sampling drying method to be 5.6%, and adjusting the construction mixing ratio of wet mixed mortar by the water content, wherein the water content of the wet stone powder is changed to 7.392 parts, the water is changed to 11.108 parts, and other materials are unchanged;
s2, adding wet stone powder into stirring equipment according to a construction mixing ratio, stirring and dispersing mud cake-shaped wet stone powder at a speed of 30r/min for 4min, adding sand, stirring and dispersing at a speed of 25r/min for 4min, adding water, and stirring and dispersing at a speed of 45r/min for 3min;
s3, adding cement and mineral admixture into the mixture obtained in the step S2, stirring for 2min at the speed of 60r/min, and adding the admixture at the same time to ensure that the consistency of the wet-mixed mortar is 90-110 mm;
and S4, discharging the mixed mortar from the stirring equipment, and cleaning the inner wall of the stirring equipment.
The prepared wet-mixed mortar has the consistency of 92mm, the water retention of 89%, the consistency loss rate of 2 hours of 2.45% and the compressive strength of 25.9MPa, and has good construction performance and mechanical properties meeting the requirements.
The application utilizes the wet stone powder which is a cheap ground material with abundant resources and few application ways to prepare the wet mixed mortar, thereby not only reducing the production cost of the wet mixed mortar, but also being beneficial to environmental protection; the moisture and flocculant in the wet stone powder are defects in other application technologies, but the application fully utilizes the characteristics of the wet stone powder, adopts simple and convenient process steps to disperse the wet stone powder, and overcomes the adverse effect of the wet stone powder on cement-based materials.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the application in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the application. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (1)
1. A method for preparing wet-mix mortar based on wet-process stone powder, the wet-mix mortar based on wet-process stone powder comprising the following components: 8 to 15 parts of cement, 4 to 8 parts of mineral admixture, 5.5 to 10 parts of wet stone powder, 62 to 71 parts of sand, 0.1 to 0.3 part of additive and 11 to 15 parts of water; the sand is machine-made sand with fineness modulus of 2.3-3.0 or river sand, and the additive is a retarding type high-performance water reducing agent, which is characterized in that: the method for preparing wet-mixed mortar based on wet stone powder comprises the following steps:
a. adopting a sampling drying method rapid detector to test the water content of wet stone powder, and adjusting the construction mixing ratio of the wet mixed mortar through the water content;
b. according to the construction mixing proportion, adding wet stone powder into stirring equipment, stirring and dispersing mud cake-shaped wet stone powder at the speed of 20-30 r/min for 2-4 min, adding sand, stirring and dispersing at the speed of 20-30 r/min for 2-4 min, adding water, and stirring and dispersing at the speed of 30-60 r/min for 1-3 min;
c. adding cement and mineral admixture into the mixture obtained in the step b, stirring for 2-4 min at the speed of 30-60 r/min, and adding additive at the same time to ensure that the consistency of the wet-mixed mortar is 90-110 mm;
d. discharging the mixed mortar from the stirring equipment, and cleaning the inner wall of the stirring equipment;
the stirring device comprises:
a stirring tank configured to have a stirring chamber for accommodating mortar;
the first connecting shaft penetrates through the stirring cavity;
a scraper movably connected to the first connecting shaft;
the driving piece is used for driving the stirring tank to rotate relative to the first connecting shaft;
the mounting rack is used for supporting the stirring tank;
the stirring tank is rotationally connected to the mounting frame, and a feed inlet is formed in the stirring tank;
when the feeding port is vertically upwards, the scraping plate is separated from contact with the inner wall of the stirring cavity; when the feeding port is vertically downward, the scraping plate is contacted with the inner wall of the stirring cavity;
the stirring device further comprises:
the support frame is arranged on the mounting frame;
the second connecting shaft is arranged on the supporting frame;
the mounting frame is provided with a connecting hole for the second connecting shaft to pass through, and the second connecting shaft is arranged on the supporting frame;
a first connecting rod is arranged on the first connecting shaft, one end of the first connecting rod is provided with a connecting block, a first movable cavity is arranged on the connecting block, a second connecting rod is arranged on the scraping plate, the second connecting rod penetrates through the first movable cavity, and a supporting spring is arranged in the first movable cavity; the side wall of the connecting block is provided with a guide surface, and the guide surface forms a conical structure on the side wall of the connecting block;
the connecting block is provided with a second movable cavity, the second movable cavity is arranged above the first movable cavity, one end of the second movable cavity is provided with a first connecting spring, and one end of the first connecting spring is provided with a vibration piece; a separation cavity is formed in the side wall of the stirring tank, a control piece for pushing the scraping plate to move away from the inner wall of the stirring tank is arranged in the separation cavity, the control piece is of an annular structure, a plurality of thrust pieces for pushing the vibration piece to move towards the middle of the stirring cavity are arranged on the control piece, gaps exist between the adjacent thrust pieces, a first supporting ring and a second supporting ring are arranged in the separation cavity, the first supporting ring is arranged below the second supporting ring, and the control piece is arranged between the first supporting ring and the second supporting ring; the vibration piece, the control piece and the thrust piece are all made of magnets, one end of the second connecting rod is provided with a magnetic plate, the magnetism of the magnetic plate is repulsed with the magnetism of the control piece, and the magnetism of the thrust piece is repulsed with the magnetism of the vibration piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226654.7A CN115477504B (en) | 2022-10-09 | 2022-10-09 | Wet-mixed mortar based on wet stone powder and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226654.7A CN115477504B (en) | 2022-10-09 | 2022-10-09 | Wet-mixed mortar based on wet stone powder and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115477504A CN115477504A (en) | 2022-12-16 |
| CN115477504B true CN115477504B (en) | 2023-08-29 |
Family
ID=84393505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211226654.7A Active CN115477504B (en) | 2022-10-09 | 2022-10-09 | Wet-mixed mortar based on wet stone powder and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115477504B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908240A (en) * | 1994-06-30 | 1999-06-01 | Hood; Max George | Apparatus for cement blending capable of forming a thick slurry |
| CN104556866A (en) * | 2014-12-23 | 2015-04-29 | 中建商品混凝土有限公司 | Tailing powder wet-mixed plastering mortar |
| CN105948653A (en) * | 2016-05-10 | 2016-09-21 | 厦门天润锦龙建材有限公司 | Recycled wet-mixed mortar and preparation method thereof |
| CN108745128A (en) * | 2018-08-13 | 2018-11-06 | 连云港瑞隆预拌砂浆有限公司 | Improve the agitating device of material mixing efficiency |
| CN115108777A (en) * | 2022-06-10 | 2022-09-27 | 浙江交投矿业有限公司 | Machine-made sand reactive powder concrete using solid waste stone powder and preparation method thereof |
-
2022
- 2022-10-09 CN CN202211226654.7A patent/CN115477504B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908240A (en) * | 1994-06-30 | 1999-06-01 | Hood; Max George | Apparatus for cement blending capable of forming a thick slurry |
| CN104556866A (en) * | 2014-12-23 | 2015-04-29 | 中建商品混凝土有限公司 | Tailing powder wet-mixed plastering mortar |
| CN105948653A (en) * | 2016-05-10 | 2016-09-21 | 厦门天润锦龙建材有限公司 | Recycled wet-mixed mortar and preparation method thereof |
| CN108745128A (en) * | 2018-08-13 | 2018-11-06 | 连云港瑞隆预拌砂浆有限公司 | Improve the agitating device of material mixing efficiency |
| CN115108777A (en) * | 2022-06-10 | 2022-09-27 | 浙江交投矿业有限公司 | Machine-made sand reactive powder concrete using solid waste stone powder and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 林智扬 ; 刘荣桂 ; 汤灿 ; 郝文峰 ; 廖福星 ; 袁天军 ; .包裹硅酸钠的微胶囊自修复混凝土在不同修复剂下的修复性能.硅酸盐通报.2020,(第04期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115477504A (en) | 2022-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107984624A (en) | A kind of concrete mixer | |
| CN107558336A (en) | A kind of municipal cement flooring laying apparatus | |
| CN107901237A (en) | A kind of good concrete central mix plant of mixing effect | |
| CN108908723B (en) | High-efficient agitating unit of cement for building engineering | |
| CN107901220A (en) | A kind of bridge building operations concrete mixing stirring device | |
| CN211917280U (en) | Concrete mixing device for municipal construction | |
| CN115477504B (en) | Wet-mixed mortar based on wet stone powder and preparation process thereof | |
| CN210449338U (en) | Breaker is used in dry-mixed mortar production | |
| CN210732822U (en) | A high-efficient agitating unit for concrete mixer | |
| CN108178544B (en) | Process for manufacturing concrete by using stone powder | |
| CN216275135U (en) | Lime improvement gangue roadbed construction stirring-paving-compacting all-in-one machine | |
| CN215395975U (en) | Brick making machine with good stirring effect | |
| CN213198193U (en) | Mortar agitated vessel | |
| CN110549490A (en) | Cement mixer with shredding function | |
| CN107175770A (en) | A kind of concrete central mix plant | |
| CN216782245U (en) | Agitated vessel is used in asphalt concrete production | |
| CN112428434A (en) | Be used for concrete apparatus for producing | |
| CN207682667U (en) | A kind of the continous way Dual Horizontal Shafts Vibratory Mixing cylinder and its blender of additional vibrator | |
| CN210705328U (en) | Cement stabilized macadam plant mixing regeneration device | |
| CN216024396U (en) | Asphalt concrete production agitating unit | |
| CN218429104U (en) | Grit mixes machine that building was used | |
| CN220879109U (en) | High-efficient breaker of color brick raw materials | |
| CN216609491U (en) | Mixing arrangement is broken up fast to colored brick raw materials | |
| CN108435394A (en) | A kind of decorative engineering spraying crushing-mixing integrated device | |
| CN219486132U (en) | Material mixing device for house construction |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |