CN114907039A - Magnetic concrete grout spraying and grout rebound reducing device and construction method - Google Patents
Magnetic concrete grout spraying and grout rebound reducing device and construction method Download PDFInfo
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- CN114907039A CN114907039A CN202111581645.5A CN202111581645A CN114907039A CN 114907039 A CN114907039 A CN 114907039A CN 202111581645 A CN202111581645 A CN 202111581645A CN 114907039 A CN114907039 A CN 114907039A
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00422—Magnetic properties
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- 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
Abstract
The invention provides a device for spraying slurry and reducing slurry resilience of magnetic concrete and a construction method, comprising a concrete sprayer, a slurry stirring tank, a hopper, a stirrer, a stroke-increasing slurry conveying pipe and a strong electromagnetic spray head; wherein, the upper part of the concrete sprayer is provided with a speed reducer, and a transmission device is arranged above the speed reducer; the power system consists of a motor and an oil-water separator; the strong electromagnetic nozzle consists of a strong electromagnetic device and a nozzle, and the metering device consists of a metering pump; through utilizing the ferromagnetic substance in the useless slay, give magnetic material for magnetism through strong electromagnetism shower nozzle, magnetism concrete thick liquid is through the magnetic force effect each other in the work progress, effectively reduces thick liquid and kick-backs and improves concrete early strength simultaneously. The problems that the concrete setting time and pumpability cannot be dynamically controlled in real time and the parameters of the pumpability, the fluidity, the setting time and the like of concrete grout cannot efficiently meet the requirements of construction processes can be effectively solved.
Description
Technical Field
The invention relates to the field of concrete materials and anchor-shotcrete supporting engineering, in particular to an automatic control system and method based on denitrification and denitrification of sulfur autotrophs.
Background
In the prior art, the concrete material is prepared by mixing cement, sand, stones and water according to a certain proportion, conventional pumping concrete is generally conveyed to a construction site by a concrete mixer truck after a concrete mixing plant prepares a mixed finished product, the concrete setting time and pumpability cannot be dynamically controlled in real time, so that the concrete must be conveyed to the construction site before initial setting, and when concrete is sprayed, the concrete material is wasted and the air is polluted due to the factors such as the pumpability, the fluidity and the setting time of concrete slurry. Therefore, the improvement of the existing concrete material and construction process is a problem which needs to be solved urgently in the field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device and a construction method for magnetic concrete grout spraying and grout rebound reduction, which can solve the problem that in the prior art, the concrete setting time and pumpability cannot be dynamically controlled in real time, so that the pumpability, fluidity, setting time and other parameters of the concrete grout cannot efficiently meet the requirements of construction processes, and particularly, the grout spraying rebound is controlled, so that the waste of concrete materials is further reduced, and air pollution is further caused.
In order to achieve the technical features, the invention is realized as follows: the magnetic concrete spraying slurry is characterized in that ferromagnetic mineral waste residues are added into the magnetic concrete spraying slurry to serve as raw materials, a ball mill is used for grinding the ferromagnetic mineral waste residues into ferromagnetic mineral waste residue powder, then a ferromagnetic electromagnet is used for screening the ferromagnetic mineral waste residue powder, after ferromagnetic mineral powder containing ferromagnetic substances is adsorbed, the ferromagnetic mineral powder is added into a concrete spraying slurry material according to a certain proportion, and then a magnetized material is provided for the concrete spraying slurry material.
The magnetic concrete spraying slurry is composed of cement, water, ferromagnetic mineral powder, an iron powder dispersing agent, a water reducing agent, an accelerating agent, a flocculating agent and a defoaming agent in proportion; wherein the volume ratio of the water to the cement is 0.3-0.5; the volume content of the residual additive in the cement paste is as follows: 3-5% of a flocculating agent, 0.8-1.2% of a water reducing agent, 0.1-0.3% of a defoaming agent, 30-55% of ferromagnetic mineral powder, 1.3-1.6% of an iron powder dispersing agent and 2-3% of an accelerating agent.
The accelerator adopts an alkali-free liquid accelerator, so that the early strength of concrete is improved, and the impermeability is improved.
The spraying device for spraying the magnetic concrete spraying slurry and reducing slurry resilience comprises a concrete sprayer, wherein a slurry stirring tank is supported and mounted at the top of the concrete sprayer, a stirrer is rotatably mounted in the slurry stirring tank, a hopper for adding raw materials is mounted on the side edge of the slurry stirring tank, a stroke-increasing slurry conveying pipe is connected to the slurry stirring tank, and a strong electromagnetic spray head is mounted at the tail end of the stroke-increasing slurry conveying pipe; the extended range slurry delivery pipe is connected with a power system for providing power.
The top of the slurry stirring tank is provided with a water reducing agent adding device for adding a water reducing agent, the water reducing agent adding device is connected with the console, the flow speed and the flow of the water reducing agent can be adjusted by adjusting the water reducing agent adding device in real time on the console, and the fluidity and pumpability parameters of concrete spraying slurry are controlled;
after the magnetic concrete spraying slurry is prepared, a certain amount of water reducing agent is added according to the transportation time and engineering requirements to prevent mortar from solidifying and hardening, a large amount of stirring of the tank car during transportation is avoided, the transportation cost is saved, and the service life of the tank car is prolonged.
The material cavity of the stirrer selects anti-adhesion high-elasticity rubber as a lining plate, and adopts a wear-resistant rubber material as a combination plate.
The power system comprises a motor and an oil-water separator;
the increase form slurry delivery pipe intermediate position is provided with accelerator and adds the device, and accelerator adds the device and comprises jar body and accelerator measuring pump, and a rotatory push rod is built-in to the device, when stirring accelerator and thick liquid, accelerates the flow rate of mortar, reduces intraductal jam.
Strong electromagnetic sprinkler head passes through the spherical hinge support at concrete sprayer's top to can the construction demand rotate strong electromagnetic sprinkler head's direction in 360 degrees scopes, carry out diversified mortar sprinkling irrigation.
The strong electromagnetic sprayer is characterized by comprising a strong electromagnetic device and a sprayer, wherein the strong electromagnetic device is used as a voltage converter through a large capacitor, an enameled wire with certain thickness is wound on the strong electromagnetic sprayer, a contactor is also arranged and used as a switch, a direct-current power supply with a current limiting function is further arranged, the strong electromagnetic sprayer can energize ferromagnetic mineral powder in magnetic concrete slurry, and slurry rebound is reduced by utilizing the mutual traction effect of magnetic force among ferromagnetic mineral powder particles in the magnetic concrete sprayed slurry material;
the shower nozzle is connected by threaded connection with increase form thick liquid conveyer pipe joint department, convenient dismantlement, and the front end is furnished with flow converter, reaches the purpose of switching output flow through rotatory flow converter to the side slope of different angles and different grade type.
The method for carrying out the construction of the magnetic concrete spraying slurry by adopting the spraying device comprises the following steps:
the method comprises the following steps: firstly, preparing magnetic concrete spraying slurry by using ore waste as a raw material according to engineering requirements according to a set proportion;
step two: the prepared magnetic concrete spraying slurry is transported by adopting a pumping transport vehicle, and in the transportation process, the flow speed and the flow of the water reducing agent are adjusted by adjusting the water reducing agent adding device in real time on a control console according to the transportation time and the related construction process requirements, so that the fluidity and the pumpability related parameters of the concrete slurry are controlled;
step three: when the pumping transport vehicle arrives at a construction site, whether the fluidity and pumpability parameters of the magnetic concrete sprayed slurry in the slurry mixing tank meet the requirements of sprayed concrete or not is checked, the power system starts to work after the check is correct, and the slurry is conveyed in a flowing manner through the extended range type slurry conveying pipe;
step four: the magnetic concrete spraying slurry flows through the accelerator adding device to add the accelerator into the pipe, the rotating push rod accelerates the flowing speed of the mortar and reduces the blockage in the pipe while stirring the accelerator and the slurry, and the adding dosage of the accelerator is determined according to the conveying speed, the flow and relevant process parameters of the slurry;
step five: under the action of the strong magnetic field of the strong electromagnetic spray head, the magnetic concrete slurry is magnetized by the strong electromagnetic spray head, so that ferromagnetic minerals in the magnetic concrete slurry have certain magnetism; setting the spray head to a certain flow rate to meet the requirement of spray parameters;
step six: and controlling the spraying direction of the concrete through the spherical hinge to operate.
The invention has the following beneficial effects:
1. compared with the common concrete, the magnetic concrete jet grout provided by the invention greatly improves the solidification speed of the concrete, reduces the concrete which slides downwards under the action of gravity, greatly improves the early strength of the concrete, greatly reduces the rebound quantity and dust of the concrete in the jetting process due to the impermeability, and reduces the air pollution.
2. Compared with the common concrete, the dynamic and real-time addition of additives such as the water reducing agent enhances the fluidity and pumpability of the concrete, reduces the stirring speed of the mortar tank truck in the transportation process, saves fuel and improves the service life of the mortar tank truck.
3. The magnetic concrete jet slurry mainly takes industrial waste slag as a raw material, thereby realizing the reutilization of wastes and saving the economic cost.
4. The structure that the strong electromagnetic spray head is connected with the vehicle body through the spherical hinge greatly improves the flexibility of the spray head, and can spray mortar in multiple directions and multiple angles according to the operation requirement.
5. The rotary push rod arranged in the extended-range slurry conveying pipe can greatly reduce mortar blockage and increase the transmission speed of mortar.
6. The material cavity of the stirrer adopts anti-adhesion high-elasticity rubber as a lining plate and adopts wear-resistant rubber material as a combination plate. Not only is convenient to clean and has certain toughness, but also has good abrasion resistance, and the dust concentration is reduced by sealing and compressing air.
7. The middle position of the extended range type slurry conveying pipe is provided with an accelerator adding device, the accelerator adding device consists of a tank body and an accelerator metering pump, a rotary push rod is arranged in the accelerator adding device, the flowing speed of mortar can be increased while the accelerator and the slurry are stirred, and blockage is reduced; meanwhile, the dripping speed of the accelerator can be adjusted according to the engineering requirements, and the effect of controlling the concrete setting time in real time is achieved.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a front view of a strong electromagnetic nozzle according to the present invention.
FIG. 2 is a side view of the strong electromagnetic nozzle of the present invention.
Fig. 3 is an overall configuration diagram of the injection device of the present invention.
In the figure: the concrete spraying machine comprises a concrete sprayer 1, a water reducing agent adding device 2, a strong electromagnet 3, an accelerator metering pump 4, a motor 5, an oil-water separator 6, a slurry stirring tank 7, a stroke-increasing slurry conveying pipe 8, a hopper 9, a stirrer 10, a strong electromagnetic spray head 11, a spray head 12 and a spherical hinge 13.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1 to 3, a magnetic concrete spray slurry is prepared by adding ferromagnetic mineral waste residues into a magnetic concrete spray slurry as a raw material, grinding the ferromagnetic mineral waste residues into ferromagnetic mineral waste residue powder by using a ball mill, screening the ferromagnetic mineral waste residue powder by using a ferromagnetic electromagnet, adsorbing ferromagnetic mineral powder containing ferromagnetic substances, adding the ferromagnetic mineral powder into a concrete spray slurry material according to a certain ratio, and further providing a magnetized material for the concrete spray slurry material. By adopting the magnetic concrete spraying slurry, not only can waste be utilized, but also a magnetized material is provided for the magnetized slurry, and the material cost is saved.
Furthermore, the magnetic concrete spraying slurry is prepared from cement, water, ferromagnetic mineral powder, an iron powder dispersing agent, a water reducing agent, an accelerating agent, a flocculating agent and a defoaming agent; wherein the volume ratio of the water to the cement is 0.3-0.5; the volume content of the residual additive in the cement paste is as follows: 3-5% of a flocculating agent, 0.8-1.2% of a water reducing agent, 0.1-0.3% of a defoaming agent, 30-55% of ferromagnetic mineral powder, 1.3-1.6% of an iron powder dispersing agent and 2-3% of an accelerating agent. By adopting the matching proportion, the optimal performance of the magnetic concrete spraying slurry is ensured, and in addition, the proportion of the magnetic concrete spraying slurry can be adjusted according to the construction requirements in the concrete construction process.
Furthermore, the alkali-free liquid accelerator is selected as the accelerator, so that the early strength of the concrete is improved, and the impermeability is improved. Simple operation and reduced dust and rebound.
Example 2:
the spraying device for spraying the magnetic concrete spraying slurry and reducing slurry resilience comprises a concrete sprayer 1, wherein a slurry stirring tank 7 is supported and mounted at the top of the concrete sprayer 1, a stirrer 10 is rotatably mounted in the slurry stirring tank 7, a hopper 9 for adding raw materials is mounted on the side edge of the slurry stirring tank 7, a stroke-increasing slurry conveying pipe 8 is connected to the slurry stirring tank 7, and a strong electromagnetic spray head 11 is mounted at the tail end of the stroke-increasing slurry conveying pipe 8; the extended range slurry delivery pipe 8 is connected with a power system for providing power. Through adopting foretell injection apparatus can be used for the special injection of magnetic concrete injection thick liquid, and then guaranteed in the injection process, ferromagnetic material in the magnetic concrete thick liquid can be given magnetism to the forceful electric magnet valve shower nozzle, utilizes the magnetic force mutual traction effect between the magnetic particles in the magnetic concrete thick liquid to reduce the thick liquid and kick-backs.
Further, a water reducing agent adding device 2 for adding a water reducing agent is arranged at the top of the slurry stirring tank 7, the water reducing agent adding device 2 is connected with the console, the flow speed and flow of the water reducing agent can be adjusted by adjusting the water reducing agent adding device 2 in real time on the console, and the fluidity and pumpability parameters of concrete spraying slurry are controlled; after the magnetic concrete spraying slurry is prepared, a certain amount of water reducing agent is added according to the transportation time and engineering requirements to prevent mortar from solidifying and hardening, a large amount of stirring of the tank car during transportation is avoided, the transportation cost is saved, and the service life of the tank car is prolonged.
Furthermore, the material cavity of the stirrer 10 is made of anti-adhesion high-elasticity rubber as a lining plate, and a wear-resistant rubber material is used as a combination plate. Its advantages are easy cleaning, high toughness, high antiwear performance, and low dust concentration.
Further, the power system includes an electric motor 5 and an oil-water separator 6; 8 intermediate positions of increase form slurry delivery pipe are provided with accelerator and add the device, and accelerator adds the device and comprises jar body and accelerator measuring pump 4, and a rotatory push rod is put to the device in, when stirring accelerator and thick liquid for the flow rate of mortar reduces intraductal jam. The power system can be used for providing power in the jetting construction process. The addition and supply of the accelerator are controlled by an accelerator metering pump 4.
Further, strong electromagnetic nozzle 11 supports the top at concrete sprayer 1 through ball pivot 13 to can construct the direction of demand rotation strong electromagnetic nozzle 11 in 360 degrees scopes, carry out diversified mortar sprinkling irrigation. The direction of the strong electromagnetic nozzle 11 can be conveniently adjusted by adopting the spherical hinge 13, so that the spraying angle and direction can be changed.
Further, the strong electromagnetic sprayer 11 is composed of a strong electromagnetic device 3 and a sprayer 12, the strong electromagnetic device 3 is used as a voltage converter through a large capacitor, an enameled wire with certain thickness is wound on the strong electromagnetic sprayer, a contactor is further arranged and used as a switch, a direct current power supply with a current limiting function is further arranged, the strong electromagnetic sprayer 11 can give magnetism to ferromagnetic mineral powder in magnetic concrete slurry, and slurry rebound is reduced by utilizing the magnetic force mutual traction effect among ferromagnetic mineral powder particles in the magnetic concrete spraying slurry material.
Furthermore, the joint of the spray head 12 and the extended range type slurry conveying pipe 8 is connected through threads, so that the spray head is convenient to disassemble, the front end of the spray head is provided with a flow converter, and the purpose of switching output flow is achieved by rotating the flow converter aiming at slopes with different angles and different types. Compare in traditional shower nozzle type, be convenient for control injection flow, it is extravagant to reduce the material, reaches the effect that reduces concrete resilience and dust.
Example 3:
the method for carrying out the construction of the magnetic concrete spraying slurry by adopting the spraying device comprises the following steps:
the method comprises the following steps: firstly, preparing magnetic concrete spraying slurry by taking ore waste as a raw material according to engineering requirements according to a set proportion;
step two: the prepared magnetic concrete spraying slurry is transported by adopting a pumping transport vehicle, and in the transportation process, the flow speed and flow of the water reducing agent are adjusted by adjusting the water reducing agent adding device in real time on a control console according to the transportation time and the related construction process requirements, so that the fluidity and pumpability related parameters of the concrete slurry are controlled;
step three: when the pumping transport vehicle arrives at a construction site, whether the fluidity and pumpability parameters of the magnetic concrete spraying slurry in the slurry mixing tank 7 meet the requirements of spraying the concrete is checked, the power system starts to work after the check is correct, and the slurry is conveyed in a flowing manner through the extended range type slurry conveying pipe 8;
step four: the magnetic concrete spraying slurry flows through the accelerator adding device to add the accelerator into the pipe, the rotating push rod accelerates the flowing speed of the mortar and reduces the blockage in the pipe while stirring the accelerator and the slurry, and the adding dosage of the accelerator is determined according to the conveying speed, the flow and relevant process parameters of the slurry;
step five: under the action of the strong magnetic field of the strong electromagnetic nozzle 11, the magnetic concrete grout is magnetized by the strong electromagnetic nozzle, so that ferromagnetic minerals in the magnetic concrete grout have certain magnetism; setting the spray head to a certain flow rate to meet the requirement of spray parameters;
step six: the spraying direction of the concrete is controlled through the spherical hinge 13, and operation is carried out.
Claims (10)
1. The utility model provides a magnetic concrete sprays thick liquid, its characterized in that, magnetic concrete sprays thick liquid the inside and has added the ferromagnetic mineral waste residue and has done the raw materials, adopts the ball mill to grind into ferromagnetic mineral waste residue powder with the ferromagnetic mineral waste residue, recycles strong magnetism type electro-magnet and screens ferromagnetic mineral waste residue powder, adsorbs out the ferromagnetic mineral powder who contains ferromagnetic substance after, according to certain ratio with ferromagnetic mineral powder add concrete spraying thick liquid material, and then provides the magnetic material for concrete spraying thick liquid material.
2. The magnetic concrete jet slurry according to claim 1, wherein the magnetic concrete jet slurry comprises cement, water, ferromagnetic mineral powder, an iron powder dispersing agent, a water reducing agent, a setting accelerator, a flocculating agent and a defoaming agent; wherein the volume ratio of the water to the cement is 0.3-0.5; the volume content of the residual additive in the cement paste is as follows: 3-5% of a flocculating agent, 0.8-1.2% of a water reducing agent, 0.1-0.3% of a defoaming agent, 30-55% of ferromagnetic mineral powder, 1.3-1.6% of an iron powder dispersing agent and 2-3% of an accelerating agent.
3. The magnetic concrete jet slurry of claim 2, wherein the accelerator is an alkali-free accelerator, thereby improving the early strength and permeability resistance of the concrete.
4. The spraying device for spraying the magnetic concrete spraying grout and reducing the resilience of the grout according to the claims 1 to 3 is characterized by comprising a concrete sprayer (1), wherein a grout stirring tank (7) is supported and installed at the top of the concrete sprayer (1), a stirrer (10) is rotatably installed inside the grout stirring tank (7), a hopper (9) for adding raw materials is installed on the side of the grout stirring tank (7), a stroke-increasing type grout conveying pipe (8) is connected to the grout stirring tank (7), and a strong electromagnetic spray head (11) is installed at the tail end of the stroke-increasing type grout conveying pipe (8); the extended range slurry delivery pipe (8) is connected with a power system for providing power.
5. The injection device for reducing the rebound of the slurry as claimed in claim 4, wherein a water reducing agent adding device (2) for adding a water reducing agent is arranged at the top of the slurry stirring tank (7), the water reducing agent adding device (2) is connected with the console, and the flow rate of the water reducing agent can be adjusted by adjusting the water reducing agent adding device (2) in real time at the console, so as to control the fluidity and the pumpability parameters of the concrete injection slurry;
after the magnetic concrete spraying slurry is prepared, a certain amount of water reducing agent is added according to the transportation time and engineering requirements to prevent mortar from solidifying and hardening, a large amount of stirring of the tank car during transportation is avoided, the transportation cost is saved, and the service life of the tank car is prolonged.
6. The injection apparatus for reducing the rebound of the slurry as set forth in claim 4, wherein the material chamber of the agitator (10) is made of a highly elastic rubber for preventing the adhesion as a lining plate and a wear-resistant rubber material as a bonding plate.
7. The injection apparatus for reducing slurry rebound according to claim 4, wherein the power system comprises an electric motor (5) and an oil-water separator (6);
the increase form thick liquid conveyer pipe (8) intermediate position is provided with accelerator and adds the device, and accelerator adds the device and comprises jar body and accelerator measuring pump (4), and a rotatory push rod is put to the device, when stirring accelerator and thick liquid, accelerates the flow rate of mortar, reduces intraductal jam.
8. The spraying device for reducing the rebound of the grout is characterized in that the strong electromagnetic spraying nozzle (11) is supported at the top of the concrete spraying machine (1) through a spherical hinge (13) and can rotate the direction of the strong electromagnetic spraying nozzle (11) within 360 degrees to perform multi-directional mortar spraying and irrigation according to construction requirements.
9. The spraying device for reducing slurry rebound according to claim 4, wherein the strong electromagnetic nozzle (11) comprises a strong electromagnet (3) and a nozzle (12), the strong electromagnet (3) is used as a voltage converter through a large capacitor, a certain thickness of enameled wire is wound on the strong electromagnetic nozzle, a contactor is arranged for switching and a direct current power supply with a current limiting function, the strong electromagnetic nozzle (11) can excite the ferromagnetic mineral powder in the magnetic concrete slurry, and the slurry rebound is reduced by utilizing the magnetic force mutual traction among the ferromagnetic mineral powder particles in the magnetic concrete spraying slurry material;
the spray head (12) is connected with the joint of the extended range type slurry conveying pipe (8) through threads, so that the spray head is convenient to disassemble, the front end of the spray head is provided with a flow converter, and the purpose of switching output flow is achieved by rotating the flow converter aiming at different angles and different types of slopes.
10. A method for performing magnetic concrete grout spraying operation using the spraying apparatus of any one of claims 4 to 9, comprising the steps of:
the method comprises the following steps: firstly, preparing magnetic concrete spraying slurry by taking ore waste as a raw material according to engineering requirements according to a set proportion;
step two: the prepared magnetic concrete spraying slurry is transported by adopting a pumping transport vehicle, and in the transportation process, the flow speed and flow of the water reducing agent are adjusted by adjusting the water reducing agent adding device in real time on a control console according to the transportation time and the related construction process requirements, so that the fluidity and pumpability related parameters of the concrete slurry are controlled;
step three: when the pumping transport vehicle arrives at a construction site, whether the fluidity and pumpability parameters of the magnetic concrete sprayed slurry in the slurry mixing tank (7) meet the requirements of sprayed concrete or not is checked, the power system starts to work after the check is correct, and the slurry is conveyed in a flowing mode through the extended-range slurry conveying pipe (8);
step four: the magnetic concrete spraying slurry flows through the accelerator adding device to add an accelerator into the pipe, the rotating push rod accelerates the flowing speed of mortar and reduces the blockage in the pipe while stirring the accelerator and the slurry, and the adding dosage of the accelerator is determined according to the conveying speed, flow and relevant process parameters of the slurry;
step five: under the action of a strong magnetic field of the strong electromagnetic spray head (11), the magnetic concrete slurry is magnetized by the strong electromagnetic spray head, so that ferromagnetic minerals in the magnetic concrete slurry have certain magnetism; setting the spray head to a certain flow rate to meet the requirement of spray parameters;
step six: the spraying direction of the concrete is controlled through the spherical hinge (13), and operation is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581645.5A CN114907039B (en) | 2021-12-22 | 2021-12-22 | Device for spraying slurry and reducing slurry rebound of magnetic concrete and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581645.5A CN114907039B (en) | 2021-12-22 | 2021-12-22 | Device for spraying slurry and reducing slurry rebound of magnetic concrete and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN114907039A true CN114907039A (en) | 2022-08-16 |
| CN114907039B CN114907039B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111581645.5A Active CN114907039B (en) | 2021-12-22 | 2021-12-22 | Device for spraying slurry and reducing slurry rebound of magnetic concrete and construction method |
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| CN (1) | CN114907039B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000159559A (en) * | 1998-11-20 | 2000-06-13 | Denki Kagaku Kogyo Kk | Cement concrete and spray execution using the same |
| CN102464466A (en) * | 2010-11-02 | 2012-05-23 | 淮南矿业(集团)有限责任公司 | Shotcrete additive and spraying technology of shotcrete |
| CN203383834U (en) * | 2013-08-06 | 2014-01-08 | 安徽佳乐建设机械有限公司 | Intelligent integrated wet shotcreting trolley |
| CN110042834A (en) * | 2019-04-22 | 2019-07-23 | 三峡大学 | The construction method of magnetic mortar anchoring body |
| CN110043038A (en) * | 2019-05-29 | 2019-07-23 | 河南省中智重型机械设备有限公司 | Vehicle-mounted wet shot arm-and-hand system and its application method |
| CN112459495A (en) * | 2020-11-27 | 2021-03-09 | 崇仁县明生混凝土搅拌有限公司 | Reduce shower nozzle device for injection concrete of dust |
| CN217106198U (en) * | 2022-01-10 | 2022-08-02 | 齐河县城乾建材有限公司 | Jetting machine for fine stone concrete |
-
2021
- 2021-12-22 CN CN202111581645.5A patent/CN114907039B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000159559A (en) * | 1998-11-20 | 2000-06-13 | Denki Kagaku Kogyo Kk | Cement concrete and spray execution using the same |
| CN102464466A (en) * | 2010-11-02 | 2012-05-23 | 淮南矿业(集团)有限责任公司 | Shotcrete additive and spraying technology of shotcrete |
| CN203383834U (en) * | 2013-08-06 | 2014-01-08 | 安徽佳乐建设机械有限公司 | Intelligent integrated wet shotcreting trolley |
| CN110042834A (en) * | 2019-04-22 | 2019-07-23 | 三峡大学 | The construction method of magnetic mortar anchoring body |
| CN110043038A (en) * | 2019-05-29 | 2019-07-23 | 河南省中智重型机械设备有限公司 | Vehicle-mounted wet shot arm-and-hand system and its application method |
| CN112459495A (en) * | 2020-11-27 | 2021-03-09 | 崇仁县明生混凝土搅拌有限公司 | Reduce shower nozzle device for injection concrete of dust |
| CN217106198U (en) * | 2022-01-10 | 2022-08-02 | 齐河县城乾建材有限公司 | Jetting machine for fine stone concrete |
Non-Patent Citations (1)
| Title |
|---|
| 杨如仙等: ""铁尾砂细集料配制喷射混凝土的试验研究"", 《中国港湾建设》 * |
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| CN114907039B (en) | 2023-05-02 |
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