Two-component high polymer rapid grouting equipment capable of automatically and uniformly mixing

Abstract

The invention relates to the field of chemical grouting for road deep-layer disease repair, in particular to automatic and uniform-mixing two-component high polymer rapid grouting equipment which comprises a first storage bin and a second storage bin which are arranged in parallel, a stirring cylinder is arranged below the first storage bin and the second storage bin, and a stirring device is arranged in the stirring cylinder; a first one-way valve is arranged at the bottom of the first storage bin; the first one-way valve and the second one-way valve lead to the stirring cylinder; mass metering devices are arranged at the first one-way valve and the second one-way valve; a grouting material discharging one-way valve is arranged at the bottom of the stirring cylinder and sequentially connected with a grouting material pumping device, a conveying pipeline and an injection opening. The grouting efficiency is improved, materials can be fully mixed, the grouting pressure can be adjusted according to the actual situation to ensure that the expected grouting effect is achieved, and backflow of grout can be avoided.

Description

Technical Field

[0001] The invention relates to the field of chemical grouting for repairing deep damage in roads, in particular to a two-component high polymer rapid grouting device with automatic uniform mixing. Background Art

[0002] Asphalt pavement mainly uses a semi-rigid base, but due to the increasing extreme weather, increasing temperature differences, and increasing heavy traffic and traffic volume, base diseases occur frequently. How to effectively solve base diseases and reduce traffic delays caused by closed construction has become a hot topic of research.

[0003] At present, the main technical means is to adopt the grouting process. Among them, oligomer grouting has been gradually replaced by polymer due to its large carbon emissions, environmental pollution and short service life. Polymers themselves have many advantages such as fast curing speed, high strength, good adhesion, waterproof and corrosion resistance, and low pollution. At present, polymer grouting technology is developing rapidly and has been widely used in my country. At present, a variety of polymer grouting equipment is produced and used, but there are still the following problems: First, the grouting efficiency is low. At present, when repairing road base diseases, impact drills are mostly used to drill holes, then bury grouting caps or grouting pipes, and then grouting guns are used for grouting repairs. The construction steps are cumbersome. Second, the slurry is not mixed evenly during the grouting process. At present, grouting equipment mostly mixes the A and B two-component grouting liquids at the front end of the grouting gun, and then injects the slurry into the diseased location. Since the slurry is not mixed in advance, there is an uneven distribution of the two-component slurry. At present, some equipment uses a rotating channel installed at the front end to make the grouting liquid rotate in a "turbulent" state, but this type of equipment cannot change the "turbulent" rate according to different grouting pressures, resulting in uneven mixing of the grouting liquid, and the quality after repair cannot be fully guaranteed. These deficiencies and defects of traditional grouting equipment have become problems that need to be solved at present. Summary of the invention

[0004] In view of the above-mentioned technical problems existing in treating deep road diseases with traditional polymer grouting equipment, the purpose of the present invention is to provide an automatic and uniformly mixed two-component polymer rapid grouting equipment that can effectively improve the construction quality and construction efficiency during grouting.

[0005] Based on a large amount of engineering construction experience and continuous simulation optimization and adjustment in the laboratory, it is proposed that the grouting equipment that optimizes and improves construction quality and efficiency should have the following features:

[0006] 1. Automatic control system: The equipment is usually equipped with an advanced automatic control system, which can accurately control the mixing ratio and injection process, ensure that the materials are mixed evenly, and improve construction efficiency and quality.

[0007] 2. Two-component material storage: The equipment has two independent storage tanks for storing two different polymer materials. These storage tanks are usually equipped with stirring devices to prevent material sedimentation or stratification.

[0008] 3. Accurate metering system: In order to ensure that the two materials are mixed in the correct proportion, the equipment will be equipped with an accurate metering system, such as a flow meter or a weighing sensor, to ensure the accuracy of the mixing ratio.

[0009] 4. Mixing device: After the two materials are taken out from the storage tank, they will be conveyed to a mixing device, which can ensure that the two materials are fully mixed before injection.

[0010] 5. High-pressure injection system: The mixed polymer material is injected into the road surface through a high-pressure injection system. This system usually includes a high-pressure pump and an injection pipe, which can inject the material into the deep layer of the road surface.

[0011] 6. Mobile and positioning system: In order to adapt to different construction environments, the equipment may be equipped with a mobile and positioning system, such as a wheeled or tracked chassis, and a sensor or laser system for accurately locating the injection point.

[0012] 7. Cleaning and maintenance system: In order to keep the equipment in good operating condition, the equipment will be equipped with a cleaning and maintenance system to clean and maintain the equipment after construction is completed.

[0013] To achieve the above object, the specific technical solution of the present invention is:

[0014] An automatic uniformly mixed two-component polymer rapid grouting device comprises a first storage bin and a second storage bin arranged in parallel, a stirring cylinder is arranged below the first storage bin and the second storage bin, and a stirring device is arranged in the stirring cylinder;

[0015] A first one-way valve is provided at the bottom of the first storage bin, and a second one-way valve is provided at the bottom of the second storage bin; both the first one-way valve and the second one-way valve lead to the mixing tank; a mass metering device is provided at the first one-way valve and the second one-way valve;

[0016] A one-way valve for discharging grouting materials is arranged at the bottom of the mixing cylinder, and the one-way valve for discharging grouting materials is connected to a grouting material pumping device, a transmission pipeline and an injection port in sequence.

[0017] A cleaning material storage bin is provided above the first storage bin and the second storage bin; a cleaning material discharge one-way valve is provided at the bottom of the cleaning material storage bin for discharging cleaning materials into the first storage bin and the second storage bin respectively.

[0018] The first one-way valve, the second one-way valve, the cleaning material discharge one-way valve, the grouting material discharge one-way valve, the mass metering device, and the stirring device are all connected to the central control system.

[0019] The stirring device comprises a servo motor, a transmission shaft and stirring blades.

[0020] The equipment provided by the present invention has a liquid material storage space, which can achieve a certain degree of material storage and replenishment; the equipment has a fully automatic stirring device, which can achieve uniform stirring of the material throughout the entire process; the equipment has a pumping device, which can achieve the injection and filling function of the grouting material; the equipment has an inner wall cleaning device, which can achieve the residue removal function inside the equipment.

[0021] A one-way valve is installed at the bottom of the polymer material storage bin and adjacent to the mixing tank. The function of the one-way valve is to control the flow of polymer liquid material to the mixing tank to prevent the mixed liquid from flowing back to the storage bin during the mixing process. The switch state of the one-way valve is controlled by the central control system. The material addition amount is set by the central control system, and the quality metering device accurately and timely feeds back the quality changes, so as to achieve accurate addition of materials.

[0022] The stirring device includes a servo motor, a transmission shaft, stirring blades and a stirring cylinder. The servo motor is arranged between two storage bins. A servo motor fixing device and a shock absorbing device are arranged between the storage bins. The servo motor is directly connected to the transmission shaft, and the transmission shaft is directly driven by the motor. The transmission shaft passes through the top and bottom of the stirring cylinder. Limiting components are provided at the contact positions between the stirring shaft and the stirring cylinder. The stirring blades are respectively located at two quarter points below the stirring transmission shaft.

[0023] The grouting material pumping device includes a motor and a micro-liquid pump. The motor drives the liquid pump to work through a mechanical device. The motor can control the liquid output flow rate by changing the operating power. The liquid suction port of the micro-liquid pump is connected to the transmission pipeline, and the liquid outlet is connected to the injection port. The inner diameter of the liquid outlet is different from the inner diameter of the injection port. Pressurized injection can be achieved by controlling the flow rate of the liquid outlet.

[0024] The central control system includes a control module and a transmission module. The control module includes a quality controller, a time controller and a pressure controller. The quality controller is mainly used to control the opening and closing of the one-way valve. The time controller is mainly used to control the switch of the stirring motor. The pressure controller is mainly used to adjust the power of the pumping device during grouting to achieve the adjustment of the grouting pressure. The transmission module is mainly the connecting line between the sensor and the control module. The transmission module is mainly used for the signal input of the mass metering device and the timing device and the output of the switch signal.

[0025] The cleaning liquid storage bin is connected to the grouting material storage bin and the mixing tank respectively, and the flow direction of the cleaning liquid is controlled by a one-way valve, which is controlled by the central control system.

[0026] Furthermore, the method for using the upper grouting device comprises the following steps:

[0027] S1. Start the power supply of the equipment and check whether each control component can work normally through the central control system;

[0028] S2. According to the relevant instructions and usage of polymer materials, determine the addition ratio and reaction time of components AB, and set the control conditions accordingly;

[0029] S3, respectively add sufficient amount of polymer AB component materials to the two polymer material storage bins, determine the added mass according to the set addition ratio, open the one-way valve at the bottom of the storage bin, and transmit the mass change to the central control system in real time through the mass metering device. When the set value is reached, the one-way valve is closed;

[0030] S4. While adding polymer materials, the central control system starts the stirring device. After the materials are added, the timing starts. The stirring time is set according to the addition ratio of the AB component polymers. Generally, the stirring time should be 3-8 minutes.

[0031] S5. After the mixing is completed, the one-way valve opens automatically and the pumping equipment extracts the evenly mixed grouting material from the mixing tank and transports it to the injection port, and then injects the grouting material into the defective position of the base through the injection port;

[0032] S6. If more grouting materials are needed, just repeat the steps S3-5 until the operation is completed;

[0033] S7. After the equipment is used, add the cleaning material to the polymer material storage bin and the mixing tank in time, turn on the stirring device to clean the side walls, soak the bottom of the tank, and finally discharge it.

[0034] Compared with the existing technology, the efficiency of this equipment lies in: the equipment and its use method can improve the efficiency of grouting, can fully mix the materials, can adjust the grouting pressure according to the actual situation to ensure the expected grouting effect, and can avoid the backflow of slurry. The actual control of the mass metering device and the central control system can achieve quantitative addition of the polymer AB component materials in the storage bin, thereby improving the efficiency of material mixing grouting. By setting the appropriate stirring time, the AB component materials are mixed more evenly and react more fully, and the one-way valve at the connection of each storage space can avoid the backflow of slurry. The specific contents are as follows:

[0035] 1. The equipment is equipped with a central control system and a quality metering device. The quality metering device transmits the quality changes of materials in each storage bin to the central control system in real time. The central control system controls the opening and closing of the one-way valve. After the quality of the materials in the storage bin reaches the preset value, the central control system automatically closes the one-way valve to ensure the addition ratio of the materials and realize the quantitative and controllable addition of the materials.

[0036] 2. The equipment is equipped with a stirring device, which includes two layers of stirring blades. The stirring blades are driven by the rotation of the motor and the transmission shaft. The two layers of stirring blades can fully mobilize the liquid flow in the entire stirring tank space. By setting different stirring times, the polymer AB component materials can be fully mixed and reacted.

[0037] 3. The equipment is equipped with a pumping device, which is mainly driven by a motor to pump liquid from the mixing tank to the transmission pipeline, and inject the grouting material into the designated position by pressurizing it through the injection port. Since polymer materials will react to varying degrees after mixing, the viscosity of the material will increase and the fluidity will decrease. Therefore, during the grouting process, it is necessary to gradually increase the power of the pumping device according to the flow of the grouting material and the grouting effect to increase the injection pressure, ensure that the grouting process is stable and controllable, and achieve the expected grouting effect.

[0038] 4. The equipment is equipped with a one-way valve at the connection of each storage space. The one-way valve can only be opened to one side. The grouting material in the storage bin flows to the mixing tank by gravity. After mixing, the grouting mixed material flows to the injection port by the suction of the pumping device. When the material is added / delivered, the one-way valve is closed, and the grouting material on the other side cannot pass through the one-way valve, avoiding liquid reflux. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the stirring device of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figure 1 and Figure 2 As shown, an automatic uniformly mixed two-component polymer rapid grouting equipment comprises a first storage bin 1 and a second storage bin 2 arranged in parallel, a stirring tank 4 is arranged below the first storage bin 1 and the second storage bin 2, and a stirring device 3 is arranged inside the stirring tank 4;

[0043] A first one-way valve 11 is provided at the bottom of the first storage bin 1, and a second one-way valve 12 is provided at the bottom of the second storage bin 2; both the first one-way valve 11 and the second one-way valve 12 lead to the mixing tank 4; a mass metering device 10 is provided at the first one-way valve 11 and the second one-way valve 12;

[0044] A grouting material discharge check valve is provided at the bottom of the mixing cylinder 4, and the discharge check valve is connected to the grouting material pumping device 6, the transmission pipeline 7, and the injection port 8 in sequence.

[0045] A cleaning material storage bin 5 is provided above the first storage bin 1 and the second storage bin 2; a cleaning material discharge one-way valve is provided at the bottom of the cleaning material storage bin 5 for discharging cleaning materials into the first storage bin 1 and the second storage bin 2 respectively.

[0046] The first one-way valve 11, the second one-way valve 12, the cleaning material discharge one-way valve, the grouting material discharge one-way valve, the mass metering device 10, and the stirring device 3 are all connected to the central control system.

[0047] The stirring device 3 comprises a servo motor 14 , a transmission shaft 15 and stirring blades 16 .

[0048] The polymer AB component grouting materials are stored in the first storage bin 1 and the second storage bin 2 respectively. The cleaning material storage bin 5 is in direct contact with the first storage bin 1 and the second storage bin 2 and is provided with a valve to control the opening and closing of the connection port. It is connected to the mixing tank 4 through a valve and a pipeline. The bottom of the first storage bin 1 and the second storage bin 2 is in direct contact with the top of the mixing tank 4, and the flow direction of the grouting material is controlled by a one-way valve. The first storage bin 1 and the second storage bin 2 are both provided with a mass metering device 10 at the bottom, which can reflect the mass change of the grouting material in the storage bin in real time; the stirring part includes a servo motor 14, a transmission shaft 15, a stirring blade 16 and a stirring cylinder 4, the servo motor 14 is located between the first storage bin 1 and the second storage bin 2, a motor fixing frame and a buffer structure 17 are provided between the storage bins, and a limiting component 18 is provided at the top and bottom connection of the transmission shaft and the stirring cylinder, and the limiting component is used to reduce the irregular shaking of the motor and the transmission shaft during operation, thereby improving the transmission efficiency; the central control system 9 includes a control module and a transmission module, the control module includes a mass controller, a time controller and a pressure controller, the mass controller is mainly used to control the opening and closing of the one-way valve, the time controller is mainly used to control the switch of the servo motor, and the pressure controller is mainly used to control the operating power of the pumping device to achieve grouting pressure regulation. The transmission module is mainly a connecting line between the sensor and the control module. The transmission module is mainly used for signal input of the mass metering device and the timing device, and output of the switch signal. The injection part includes a pumping device, a transmission pipeline and an injection port. The pumping device is arranged at the connection between the mixing cylinder and the transmission pipeline. The transmission pipeline is connected to the injection port. When the polymer material is stirred and mixed evenly, the pumping device continuously pumps the grouting material in the mixing cylinder. After the injection port is aligned with the grouting drill hole, the road surface diseased parts are continuously grouted. The equipment has a certain material storage capacity, so it can carry out continuous stirring and mixing to achieve large-scale mobile grouting.

[0049] The operation and use of an automated uniformly mixed two-component polymer rapid grouting device comprises the following steps:

[0050] S1. Start the power supply of the equipment and check whether each control component can work normally through the central control system;

[0051] S2. According to the relevant instructions and usage of polymer materials, determine the addition ratio and reaction time of components AB, and set the control conditions accordingly;

[0052] S3, add sufficient amount of polymer AB component materials to the two storage bins respectively, determine the added mass according to the set addition ratio, open the one-way valve at the bottom of the storage bin, and transmit the mass change to the central control system in real time through the mass metering device. When the set value is reached, the one-way valve is closed;

[0053] S4. While adding polymer materials, the central control system starts the stirring device. After the materials are added, the timing starts. The stirring time is set according to the addition ratio of the AB component polymers. Generally, the stirring time should be 3-8 minutes.

[0054] S5. After the mixing is completed, the one-way valve opens automatically and the pumping equipment extracts the evenly mixed grouting material from the mixing tank and transports it to the injection port, and then injects the grouting material into the defective position of the base through the injection port;

[0055] S6. If more grouting materials are needed, just repeat the steps S3-5 until the operation is completed;

[0056] S7. After the equipment is used, add the cleaning material into the polymer material storage bin and the mixing tank in time, turn on the stirring device to clean the side walls, soak the bottom of the tank, and finally extract it through the pumping device and discharge it from the injection port.

[0057] Working principle: When using it, you need to have a preliminary understanding of the defects at the grouting location, roughly calculate the mass of the required grouting material, set the added mass by the central control system according to the required mass and the addition ratio of the two-component polymer material, add the grouting material from the storage bin to the mixing tank, and turn on the servo motor of the stirring device at the same time. The motor drives the transmission shaft and the stirring blades to rotate together to fully mix the materials in the mixing tank. After the stirring is completed, turn on the pumping device, and adjust the injection pressure according to the defect location and the depth of the opening. Insert the injection port into the opening. The slurry is quickly filled through the opening by the injection pressure and forms strength after a period of time. After the grouting is completed, add the cleaning material to the mixing tank in time, and clean the material residue on the inner wall of the mixing tank by stirring and soaking to prevent the slurry from solidifying and adhering. After the cleaning is completed, the cleaning liquid is continuously extracted and discharged to the designated location by the pumping device.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic uniformly mixed two-component polymer rapid grouting equipment, characterized in that: It comprises a first storage bin (1) and a second storage bin (2) arranged in parallel, a stirring tank (4) is arranged below the first storage bin (1) and the second storage bin (2), and a stirring device (3) is arranged inside the stirring tank (4); A first one-way valve (11) is provided at the bottom of the first storage bin (1), and a second one-way valve (12) is provided at the bottom of the second storage bin (2); the first one-way valve (11) and the second one-way valve (12) both lead to the mixing tank (4); a mass metering device (10) is provided at the first one-way valve (11) and the second one-way valve (12); A grouting material discharge check valve is provided at the bottom of the mixing cylinder (4), and the discharge check valve is sequentially connected to a grouting material pumping device (6), a transmission pipeline (7), and an injection port (8).

2. The automatic uniformly mixed two-component polymer rapid grouting equipment according to claim 1 is characterized in that: A cleaning material storage bin (5) is provided above the first storage bin (1) and the second storage bin (2); a cleaning material discharge one-way valve is provided at the bottom of the cleaning material storage bin (5) for discharging cleaning material into the first storage bin (1) and the second storage bin (2) respectively.

3. The automatic uniformly mixed two-component polymer rapid grouting equipment according to claim 2 is characterized in that: The first one-way valve (11), the second one-way valve (12), the cleaning material discharge one-way valve, the grouting material discharge one-way valve, the mass metering device (10), and the stirring device (3) are all connected to the central control system.

4. The automatic uniformly mixed two-component polymer rapid grouting equipment according to claim 1 is characterized in that: The stirring device (3) comprises a servo motor (14), a transmission shaft (15) and stirring blades (16).

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