Premixed slurry super high-rise foam concrete production device

Abstract

The utility model discloses a premixed slurry super high-rise foam concrete production device, which relates to the technical field of foam concrete production, and comprises a stirrer, a screw pump, a foam pump, foaming equipment, a foam concrete pump and a mixer, the screw pump is connected with the stirrer to convey slurry, the foaming equipment is connected with the foam pump to pump foam, the mixer is connected with the screw pump and the foam pump to mix the foam and the slurry to prepare foam concrete, and the foam concrete pump is connected with the mixer to convey the foam concrete to a high-rise area to be poured; according to the utility model, the measurement and control equipment is arranged on the hose, so that various performance indexes of slurry, foam and foam concrete can be monitored; a dilution multiple display is arranged, so that the foam stability is improved; and the slurry and the foam are uniformly dispersed and fully mixed by adopting a mixer. The problem that the quality is unstable when foam concrete is pumped to a super high-rise building for construction is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foam concrete production, in particular to a premixed slurry super-high-rise foam concrete production device. Background Art

[0002] Foamed concrete is a new type of lightweight thermal insulation material containing a large number of closed pores that is formed by mechanically foaming the foaming agent through the foaming system of a bubble machine, evenly mixing the foam with cement slurry, and then passing it through the pumping system of the foaming machine for cast-in-place construction or mold forming, and then naturally curing.

[0003] Existing foam concrete production equipment often integrates foaming equipment, mixing equipment and slurry pouring equipment. On the one hand, the mixing at the construction site causes serious dust pollution, and the workers' control accuracy of the on-site slurry mixing method is not high, which makes it difficult to ensure the quality of the slurry; on the other hand, because the foam concrete itself contains many bubbles, the pumping height during the super-high-rise pouring is limited by the stability of the foam, and the pressure is relatively large, which is prone to defoaming and mixing, resulting in large foam losses. It is difficult to obtain A07 and below density grades after reaching the high-rise, which often leads to uneven pore size and poor stability of the foam concrete; in addition, the conventional equipment has unclear adjustment of the dilution multiple of the foaming agent, which makes it difficult to give full play to the performance of the foaming agent, seriously affecting the foaming quality and causing the quality of the foamed concrete to be unstable during high-rise construction. Utility Model Content

[0004] The utility model aims to provide a premixed slurry super-high-rise foam concrete production device, which is used to solve the problem of how to overcome the unstable quality of foam concrete during super-high-rise construction in the prior art.

[0005] The utility model solves the above problems through the following technical solutions:

[0006] A premixed slurry super-high-rise foam concrete production device, comprising: a mixer, a screw pump, a foam pump, a foaming device, a foam concrete pump, and a mixer, wherein the mixer is used to stir the premixed slurry to ensure that the slurry is uniform, the screw pump is connected to the mixer and is used to transport the slurry, the foaming device is connected to the foam pump and is used to pump foam, the mixer is connected to the screw pump and the foam pump and is used to mix the foam with the slurry to prepare foam concrete, and the foam concrete pump is connected to the mixer and is used to transport the foam concrete to a high-rise area to be poured;

[0007] Wherein, the screw pump is provided with a slurry quantity control valve, the mixer and the screw pump are connected by a hose, and the hose is provided with a slurry flow meter and a slurry density meter;

[0008] The foaming device is provided with a water inlet and a foaming agent inlet, the foaming agent inlet is provided with a feed valve, the water inlet is provided with a water inlet valve, the foam pump is provided with a foam quantity control valve, the foam pump and the mixer are connected by a hose, and the hose is provided with a foam density meter and a foam flow meter;

[0009] The mixer is connected to the foam concrete pump via a hose, and the hose is provided with a foam concrete density meter and a foam concrete flow meter.

[0010] Furthermore, the foaming device is also provided with a dilution multiple display for monitoring and displaying the ratio of the foaming agent to water.

[0011] Furthermore, the mixer is a spiral blade static mixer.

[0012] Furthermore, the slurry flowmeter, foam flowmeter and foam concrete flowmeter are all electromagnetic flowmeters.

[0013] Furthermore, the slurry density meter is a tuning fork density meter, and the foam density meter and foam concrete density meter are differential pressure density meters.

[0014] Furthermore, the screw pump is a single screw pump or a twin screw pump.

[0015] Furthermore, the hose is made of wear-resistant and corrosion-resistant rubber or synthetic material, and has a smooth inner wall.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model realizes the monitoring and control of the uniformity and density of slurry and foam in the foam concrete production process by arranging a slurry density meter, a slurry flow meter, a foam density meter and a foam flow meter; at the same time, a dilution multiple display is arranged on the foaming equipment to monitor and display the ratio between the foaming agent and water, thereby ensuring the correct dilution of the foaming agent and improving the foam stability; and a spiral blade static mixer is adopted to make the slurry and foam evenly dispersed and fully mixed, thereby improving the strength, density and thermal insulation performance of the foam concrete; and solves the problem of unstable quality of foam concrete when it is pumped to super high-rise buildings for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Among them, 1-mixer; 2-screw pump; 3-mixer; 4-foam concrete pump; 5-foam pump; 6-foaming equipment; 7-dilution multiple display; 8-slurry flow meter; 9-slurry density meter; 10-foam concrete flow meter; 11-foam concrete density meter; 12-foam flow meter; 13-foam density meter. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0020] Example:

[0021] Combined with Figure 1 As shown, a premixed slurry super-high-rise foam concrete production device includes: a mixer 1, a screw pump 2, a foam pump 5, a foaming device 6, a foam concrete pump 4, and a mixer 3. The mixer 1 is used to stir the premixed slurry to ensure that the slurry is uniform. The screw pump 2 is connected to the mixer 1 and is used to transport the slurry. The foaming device 6 is connected to the foam pump 5 and is used to pump foam. The mixer 3 is connected to the screw pump 2 and the foam pump 5 and is used to mix the foam with the slurry to prepare foam concrete. The foam concrete pump 4 is connected to the mixer 3 and is used to transport the foam concrete to the high-rise area to be poured.

[0022] The screw pump 2 is provided with a slurry volume control valve, the mixer 3 is connected to the screw pump 2 via a hose, and the hose is provided with a slurry flow meter 8 and a slurry density meter 9;

[0023] The foaming device 6 is provided with a water inlet and a foaming agent inlet, the foaming agent inlet is provided with a feed valve, the water inlet is provided with a water inlet valve, the foam pump 5 is provided with a foam quantity control valve, the foam pump 5 is connected to the mixer 3 through a hose, and the hose is provided with a foam density meter 13 and a foam flow meter 12;

[0024] The mixer 3 is connected to the foamed concrete pump 4 via a hose, and a foamed concrete density meter 11 and a foamed concrete flow meter 10 are provided on the hose.

[0025] It should be noted that the mixer 1 is a device used to ensure the uniformity of the slurry, that is, to keep the slurry from being stratified. The quality of the slurry directly affects the performance of the final foamed concrete; the screw pump 2 is a pump that uses the rotation of the screw to transport the fluid, and is suitable for the transportation of high-viscosity fluids. The screw pump 2 is connected to the mixer 1 to extract the stirred slurry from the mixer 1 and transport it to the next processing link; the screw pump 2 is equipped with a slurry quantity control valve. In the production of foamed concrete, the slurry quantity control valve can accurately control the output of each batch of slurry to ensure that the amount of slurry in each batch meets expectations; the foaming device 6 is a device for generating foam, usually by mixing gas or a foaming agent with a liquid to generate foam. In the manufacture of foamed concrete, the foaming device 6 is used to mix a foaming agent (for example: a surfactant, a protein-based foaming agent) with water in a certain proportion, and to generate a large amount of fine bubbles through mechanical stirring or compressed air. Foam; the foam pump 5 is a pump specially used for conveying foam or fluid containing a large number of bubbles, and is used to convey the foam generated by the foaming device 6 to the mixer 3; when making foam concrete, the foaming device 6 can quickly generate a large amount of foam; the foaming device 6 is provided with a water inlet and a foaming agent inlet, and is respectively equipped with a water inlet valve and a feed valve, which can control the amount of water and foaming agent added; the mixer 3 is a device for mixing two or more substances together, and the mixing is achieved by stirring or other means. When making foam concrete, the mixer 3 mixes the foam with the slurry to form a uniform foam concrete; the mixer 3 is connected to the screw pump 2 and the foam pump 5 by hoses, and these hoses are equipped with various measurement and control equipment, such as a slurry flow meter 8, a slurry density meter 9, a foam density meter 13 and a foam flow meter 12. These devices can monitor and record the flow rate, density and other performance indicators of slurry and foam in real time, and provide accurate data support for operators; the foam concrete pump 4 is a foam concrete sprayer, which is a pump specially used to transport foam concrete. Since foam concrete has the characteristics of light weight and easy flow, a special pump is required to transport the mixed foam concrete to the high-rise area to be poured. During the transportation process, the hose is also equipped with a foam concrete density meter 11 for measuring the density of foam concrete and a foam concrete flow meter 10 for measuring the flow rate of foam concrete. These devices can monitor the performance of foam concrete in real time to ensure the pouring quality.

[0026] The foaming device 6 is also provided with a dilution multiple display 7 for monitoring and displaying the ratio of the foaming agent to water.

[0027] It should be noted that the dilution ratio display 7 is an instrument installed on the foaming device 6, which is used to monitor and display the flow rate of the foaming agent and water in real time, calculate the ratio between them, and display this ratio in digital or graphical form on the panel of the device, so that the operator can intuitively understand the current dilution ratio and adjust it as needed. If the ratio of the foaming agent to water is not appropriate, it may cause the foam to be too dense or too thin, thereby affecting the performance of the foamed concrete. Assuming that the dilution ratio display 7 on the foaming device 6 displays a ratio of 1:20, it means that currently 1 part of the foaming agent is mixed with 20 parts of water. If the operator finds that the foam is too dense, he can adjust the ratio by increasing the water flow rate or reducing the foaming agent flow rate to make the foam thinner; conversely, if the foam is too thin, he can adjust the ratio by increasing the foaming agent flow rate or reducing the water flow rate to achieve an ideal foam effect, ensure that the generated foam meets the production requirements of the foamed concrete, and improve the production efficiency of the foamed concrete.

[0028] The mixer 3 is a spiral blade static mixer.

[0029] It should be noted that the spiral blade static mixer is a mixing device without moving parts. It mainly relies on the spiral blades fixed in the tube to achieve mixing. These spiral blades are arranged at specific angles and spacings. When the fluid passes through, a series of cutting, rotation and rearrangement will be performed to achieve uniform mixing of the various components of the fluid. Compared with traditional dynamic mixers, the spiral blade static mixer does not require external energy to drive its internal moving parts, has a simple structure and is easy to maintain. At the same time, it can achieve efficient mixing effects within a shorter pipeline length, which helps to reduce the size and weight of the equipment and improve production efficiency. In practical applications, the spiral blade static mixer can ensure that the foam and slurry are fully contacted and dispersed during the mixing process, avoid the occurrence of local concentrations that are too high or too low, and ensure the quality and stable performance of the foamed concrete.

[0030] The slurry flowmeter 8, foam flowmeter 12 and foam concrete flowmeter 10 are all electromagnetic flowmeters.

[0031] It should be noted that the electromagnetic flowmeter is a flow measurement instrument based on Faraday's law of electromagnetic induction. Specifically, when a conductive liquid flows in a vertical direction in a magnetic field, an induced potential is generated in the conductor. The magnitude of this induced potential is proportional to the flow rate of the fluid, so by measuring the magnitude of the induced potential, the flow rate of the fluid can be determined; the slurry flowmeter 8 is a meter specifically used to measure the flow rate of fluid slurry, which is used to monitor the flow rate of concrete slurry in real time and accurately to ensure that it is mixed with foam in a predetermined ratio; the foam flowmeter 12 is used to monitor the foam flow generated by the foaming equipment 6 to ensure that the amount of foam added matches the concrete slurry, and the foam concrete flowmeter 10 is used to monitor the flow rate of the foamed concrete mixture that has been mixed evenly. Assuming that in the production process, the flow ratio of concrete slurry, foam and foamed concrete needs to be controlled to be 1:2:3, through the accurate measurement of the electromagnetic flowmeter, the operator can understand the flow conditions of each stage in real time, and adjust as needed, to achieve accurate control of the flow rate of each stage, and ensure the performance and quality of the foamed concrete finally produced.

[0032] The slurry density meter 9 is a tuning fork density meter, and the foam density meter 13 and the foam concrete density meter 11 are differential pressure density meters.

[0033] It should be noted that the tuning fork densitometer is a density measuring instrument based on the principle of vibration. Its working principle is to sense the density change of the fluid through an excited vibrating tuning fork; when the vibration frequency of the tuning fork is affected by the density of the fluid, an output signal proportional to the density will be generated, so that the density of the fluid can be accurately measured; the slurry densitometer 9 uses a tuning fork densitometer because the slurry usually has a high viscosity and density, and the tuning fork densitometer can quickly and accurately measure the density of the slurry. The differential pressure densitometer is a density measuring instrument based on the differential pressure principle. It calculates the density of the fluid by measuring the pressure difference generated by the fluid at different heights. Specifically, there is a pressure-sensitive diaphragm inside the differential pressure densitometer. When the two sides of the diaphragm are subjected to different pressures, a deformation will be generated, and this deformation is proportional to the density of the fluid. By measuring this deformation, the density of the fluid can be determined. The foam densitometer 13 and the foam concrete densitometer 11 use differential pressure densitometers because these two materials usually have lower density and better fluidity. The differential pressure densitometer can accurately measure their density and has the advantages of simple structure and wide measurement range. Through accurate measurement by the slurry density meter 9, foam density meter 13 and foam concrete density meter 11, the operator can understand the density at each stage in real time and make adjustments as needed, thereby achieving precise control of the density of materials at each stage and ensuring the performance and quality of the foam concrete finally produced.

[0034] The screw pump 2 is a single screw pump or a twin screw pump.

[0035] It should be noted that the working principle of the screw pump 2 is to generate suction and pressure through the rotation of the screw in the pump casing, thereby realizing the suction and discharge of the fluid. According to the number and structure of the screw, the screw pump 2 is mainly divided into two types: a single screw pump and a twin screw pump. A single screw pump, as the name implies, is a pump with only one screw. It has a simple structure and consists of a screw and a pump casing. When the screw rotates, the fluid is sucked into the sealed cavity between the screw and the pump casing, and is pushed to the outlet as the screw rotates. The single screw pump has the advantages of smooth flow, small pulsation, and low noise, and is suitable for conveying high-viscosity fluids containing solid particles. For example, in the production process of premixed slurry ultra-high-rise foam concrete, a single screw pump can be used to convey concrete slurry to ensure its continuous and stable supply to the mixer 3. The twin-screw pump is a pump composed of two intermeshing screws. Its working principle is similar to that of the single-screw pump, but the structure of the twin screws gives it a higher suction capacity and stronger self-priming performance; the twin-screw pump is suitable for conveying low-viscosity, volatile fluids, and occasions requiring higher conveying pressure. In the production of foamed concrete, twin-screw pumps can be used to convey foaming agents and other additives to ensure that they are accurately mixed with concrete slurry in proportion. The choice of screw pump 2 depends on the specific production requirements and fluid properties. Whether it is a single screw pump or a twin screw pump, they play an important role in the production process of premixed slurry super-high-rise foamed concrete, ensuring continuous, stable delivery and precise mixing of fluids.

[0036] The hose is made of wear-resistant and corrosion-resistant rubber or synthetic material, and has a smooth inner wall.

[0037] It should be noted that in order to ensure that the hose can operate stably for a long time in a harsh working environment, the hose is made of wear-resistant and corrosion-resistant rubber or synthetic materials. These materials have excellent wear resistance and can resist the wear of the inner wall of the hose by solid particles in fluids such as concrete slurry and foam, thereby extending the service life of the hose; at the same time, these materials also have good corrosion resistance and can resist the erosion of the hose by chemical additives, water and other corrosive media, avoiding the hose from being damaged or leaking due to corrosion. In addition to wear resistance and corrosion resistance, the hose also has certain elasticity and pressure resistance. The elasticity enables the hose to quickly return to its original state when it is squeezed or stretched by external force, maintaining the smooth transmission of the fluid; the pressure resistance ensures that the hose can withstand the pressure of the internal fluid and the pressure changes of the external environment, and will not break or deform due to excessive pressure. In addition, the inner wall of the hose is designed to be a smooth structure, which can reduce the friction resistance of the fluid in the hose, reduce the energy loss during the transportation process, and improve the transportation efficiency; at the same time, the smooth inner wall is also conducive to preventing solid particles in the fluid from adhering and depositing on the inner wall of the hose, reducing the risk of hose clogging.

[0038] Workflow: the premixed slurry is uniformly stirred in the mixer 1, and then the slurry volume control valve on the screw pump 2 is adjusted to a preset flow rate, and the slurry is transported to the mixer 3 through a hose; at the same time, the foaming agent and water are mixed in a preset proportion in the foaming device 6 to obtain foam, and then the foam volume control valve on the foam pump 5 is adjusted to a preset flow rate, and the foam is transported to the mixer 3 through a hose, the slurry and foam are mixed in the mixer 3 to obtain foamed concrete, and finally transported to the construction site for construction through the foamed concrete pump 4.

[0039] In the utility model, the equipment actually pumps 160 meters of vertical height foam density A04, foam concrete heat conductivity coefficient 0.08W / (mK), reaching the insulation effect of A03, compared with the traditional equipment which can only pump 110 meters of vertical height, and the lowest pumping foam concrete density A07. Therefore, the equipment has achieved remarkable results in overcoming the difficulties of ultra-high-rise and ultra-light concrete pumping.

[0040] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A premixed slurry super-high-rise foam concrete production device, characterized in that: include: A mixer, a screw pump, a foam pump, a foaming device, a foam concrete pump, and a mixer. The mixer is used to stir the premixed slurry to ensure that the slurry is uniform. The screw pump is connected to the mixer to transport the slurry. The foaming device is connected to the foam pump to pump foam. The mixer is connected to the screw pump and the foam pump to mix the foam with the slurry to prepare foam concrete. The foam concrete pump is connected to the mixer to transport the foam concrete to the high-rise area to be poured. Wherein, the screw pump is provided with a slurry quantity control valve, the mixer and the screw pump are connected by a hose, and the hose is provided with a slurry flow meter and a slurry density meter; The foaming device is provided with a water inlet and a foaming agent inlet, the foaming agent inlet is provided with a feed valve, the water inlet is provided with a water inlet valve, the foam pump is provided with a foam quantity control valve, the foam pump and the mixer are connected by a hose, and the hose is provided with a foam density meter and a foam flow meter; The mixer is connected to the foam concrete pump via a hose, and a foam concrete density meter and a foam concrete flow meter are arranged on the hose.

2. A premixed slurry super-high-rise foam concrete production device according to claim 1, characterized in that: The foaming device is also provided with a dilution multiple display for monitoring and displaying the ratio of the foaming agent to water.

3. The device for producing premixed slurry super-high-rise foamed concrete according to claim 1, characterized in that: The mixer is a spiral blade static mixer.

4. The device for producing premixed slurry super-high-rise foamed concrete according to claim 1, characterized in that: The slurry flowmeter, foam flowmeter and foam concrete flowmeter all adopt electromagnetic flowmeters.

5. The device for producing premixed slurry super-high-rise foamed concrete according to claim 1, characterized in that: The slurry density meter adopts a tuning fork density meter, and the foam density meter and foam concrete density meter adopt differential pressure density meters.

6. The device for producing premixed slurry super-high-rise foamed concrete according to claim 1, characterized in that: The screw pump is a single screw pump or a twin screw pump.

7. The device for producing premixed slurry super-high-rise foamed concrete according to claim 1, characterized in that: The hose is made of wear-resistant and corrosion-resistant rubber or synthetic material, and has a smooth inner wall.

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