Magnesium phosphate material constant-temperature mixer truck

Abstract

The utility model relates to the technical field of stirring equipment, in particular to a magnesium phosphate material constant-temperature stirring truck which comprises a truck body, a carriage, a stirring device fixedly mounted in the carriage, a storage device fixedly mounted in the carriage and used for storing materials, a control device used for integrated control and a conveying device used for conveying the materials. The storage device comprises a first stock bin for storing a material A, a second stock bin for storing a material B, a third stock bin for storing aggregate and a water supply bin for storing water; a heating pipeline, a cooling pipeline, a water pump for pumping water and a three-way electromagnetic valve for controlling the water flow direction are respectively arranged between the water supply bin and the stirring device, an electric water heater is arranged on the heating pipeline, and a heat exchanger is arranged on the cooling pipeline; a temperature sensor is mounted in the stirring device; according to the scheme, the technical problem that an existing mixer truck cannot use magnesium phosphate cement to quickly repair a pavement in cold and hot environments can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitating equipment technical field, concretely is a kind of magnesium phosphate material constant temperature mixer truck. BACKGROUND

[0002] Concrete mixing truck or called mixer truck is a special truck for transporting pre-mixed concrete for construction. It is also often called snail truck due to its appearance. The truck is equipped with a cylindrical mixing drum for carrying mixed concrete, which is kept rotating during transportation to ensure that the carried concrete does not solidify. After delivering the concrete, the mixing drum is usually washed with water to prevent hardened concrete from occupying space.

[0003] Magnesium phosphate cement (MPC) is composed of phosphate, magnesium oxide and additives in a certain proportion. It is a new type of air-hardening cementitious material based on acid-base neutralization reaction and chemical hardening. This type of cementitious material has the characteristics of fast hardening, early strength, high bonding strength, small volume deformation, good wear resistance and wide environmental adaptability. The excellent performance of magnesium phosphate cement makes it have broad application prospects in engineering rapid repair, rapid reinforcement and remediation, anti-burst technology, harmful substance solidification and national defense engineering construction.

[0004] The mixing device provided in the prior art mixer truck is mainly composed of a mixing drum and its auxiliary support components, such as the prior art mixing drum and mixer truck (publication number: CN202278661U). However, magnesium phosphate cement has its special properties, and A material (magnesium oxide) and B material (phosphate) for preparing magnesium phosphate gel material need to be stored separately, and then mixed and stirred when transported to the construction site. For example, in the process of repairing airport pavement panels, the time left for the operator to repair is less than six hours, and the setting process of magnesium phosphate gel is greatly affected by temperature. In summer, when the A / B material of magnesium phosphate is transported to the construction site, the temperature is already high, and after direct stirring, magnesium phosphate quickly sets, making it impossible for the construction party to carry out construction. In winter, the low outdoor temperature leads to long setting time of magnesium phosphate, and the cement pavement cannot meet the required early strength grade within the specified time.

[0005] In summary, the existing mixer truck cannot be used to apply magnesium phosphate cement to repair the pavement quickly and meet the quality requirements in cold and hot environments. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of magnesium phosphate material constant temperature mixer truck, can solve the technical problems that the existing mixer truck cannot be used to apply magnesium phosphate cement to repair the pavement quickly in cold and hot environments.

[0007] The application provides the following technical solutions:

[0008] A constant temperature stirring truck for magnesium phosphate material, comprising a vehicle body, a vehicle compartment, a stirring device fixedly installed in the vehicle compartment, a storage device fixedly installed in the vehicle compartment for storing materials, a control device for integrated control, and a conveying device for conveying materials; the storage device comprises a first bin for storing A material, a second bin for storing B material, a third bin for storing aggregate, and a water supply bin for storing water; the third bin is fixedly installed above the stirring device; a temperature rising pipeline and a temperature reducing pipeline for communication are respectively arranged between the water supply bin and the stirring device, a water pump is arranged, a three-way electromagnetic valve for controlling water flow direction is arranged, an electric water heater is installed on the temperature rising pipeline, and a heat exchanger is installed on the temperature reducing pipeline; a temperature sensor is installed inside the stirring device.

[0009] Beneficial effects:

[0010] 1. Precise temperature regulation to ensure construction quality: The electric water heater and the heat exchanger respectively heat or cool the water in the temperature rising pipeline and the temperature reducing pipeline, thereby indirectly adjusting the temperature of the magnesium phosphate cement formed in the stirring device. The temperature sensor monitors and feeds back the temperature change of the magnesium phosphate cement in real time, ensuring that it always remains within the standard range. This design solves the problem of rapid magnesium phosphate setting in summer and prolonged setting time in winter, ensuring that the magnesium phosphate cement can meet the setting time and strength requirements in hot or cold environments, thus ensuring construction quality and progress.

[0011] 2. Separate storage to ensure material purity: The storage device is divided into separate first bin (A material), second bin (B material) and third bin (cement), and water supply bin, ensuring that magnesium oxide (A material) and phosphate (B material), the main components of magnesium phosphate cement, can be stored separately to avoid premature mixing leading to uncontrolled reaction. This separate storage design not only ensures the purity of each material, but also facilitates accurate measurement and management, improving the safety and reliability of construction.

[0012] 3. Optimized material layout to improve mixing efficiency: The third bin for storing aggregate is fixedly installed above the stirring device, making full use of gravity to reduce the workload of the conveying device, reduce energy consumption and improve the speed and accuracy of material conveying. Since the amount of aggregate input is large, this layout can significantly reduce the pressure on the conveying device, improve mixing efficiency and ensure smooth and efficient stirring process.

[0013] In summary, through the above improvements, the constant temperature stirring vehicle for magnesium phosphate material not only realizes accurate control of the temperature of magnesium phosphate cementitious material, ensuring the construction quality under different environmental conditions, but also ensures the purity and mixing efficiency of the material through reasonable storage and layout design, providing reliable guarantee for the rapid and high-quality repair operation of magnesium phosphate cement in cold and hot environments.

[0014] Further, as an improvement, the conveying device is selected as a screw conveyor.

[0015] Beneficial effect: The screw conveyor pushes the material along the axial direction through the rotating spiral blade, ensuring continuous and stable transmission of the material from each bin to the stirring device. Especially when dealing with materials such as magnesium phosphate cement that have strict mixing ratio requirements, the screw conveyor can accurately control the flow and speed of the material, avoiding the blockage or unevenness problems that may occur in traditional conveying methods.

[0016] Further, as an improvement, a water inlet is provided on the side wall of the water supply bin, a one-way valve is fixedly installed on the water inlet, and a pipeline connected to the inlet of the one-way valve extends out of the carriage.

[0017] Beneficial effect: The most prominent effect of this improvement is to greatly simplify the water replenishment operation of the water supply bin and effectively prevent backflow and contamination of water. By providing a water inlet on the side wall of the water supply bin and installing a one-way valve, the external water source can be directly connected to the water inlet through the pipeline extending out of the carriage, eliminating the need to open the carriage for water replenishment, greatly facilitating the operation of the construction site personnel.

[0018] Further, as an improvement, the first bin includes a bin barrel and a thermal insulation layer covering the outer surface of the bin barrel, an openable bin door is provided on the top of the bin barrel, and the second bin and the third bin are the same structure as the first bin.

[0019] Beneficial effect: The design of the thermal insulation layer effectively prevents heat loss, ensuring that the material maintains a constant temperature throughout the transportation and preparation process, avoiding the problem of prolonged or uneven setting time caused by temperature fluctuations. The provision of the bin door is beneficial for replenishing materials.

[0020] Further, as an improvement, the bin barrel is a hollow cylindrical structure, and an electric heating wire for heating the material in the bin barrel is embedded in the solid part of the bin barrel.

[0021] Beneficial effects: the most prominent effect of this improvement is that it greatly shortens the time for magnesium phosphate cement to reach the standard temperature, significantly improving the work efficiency of winter construction. By embedding the heating wire inside the barrel and combining the outer surface insulation layer, A material, B material and aggregate can be maintained at an ideal higher temperature before material mixing. This preheating method not only speeds up the material heating speed, but also reduces the subsequent need for temperature adjustment during the mixing process, combined with the electric water heater for detailed adjustment, so that the magnesium phosphate cement can reach the suitable construction temperature faster. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the embodiment one of the utility model;

[0023] Figure 2 It is the connection schematic diagram of the part of the heating pipeline 600, the cooling pipeline 700 in the embodiment one of the utility model;

[0024] Figure 3 It is the A-A sectional view of the corresponding Figure 1 in the embodiment two of the utility model;

[0025] Figure 4 It is the enlarged schematic diagram of B position in Figure 3 . DETAILED DESCRIPTION

[0026] The following is further explained in detail by specific implementation manners:

[0027] The marks in the drawings of the specification include: vehicle body 100, vehicle head 101, vehicle frame 102, carriage 200, stirring device 300, temperature sensor 301, storage device 400, first bin 401, barrel 401-1, insulation layer 401-2, heating wire 401-3, bin door 401-4, second bin 402, third bin 403, water supply bin 404, mounting frame 405, water inlet 406, conveying device 500, heating pipeline 600, electric water heater 601, cooling pipeline 700, heat exchanger 701, water pump 800, three-way electromagnetic valve 900.

[0028] Embodiment one

[0029] As shown in Figure 1 , Figure 2 , a magnesium phosphate material constant temperature stirring vehicle includes vehicle body 100, carriage 200, stirring device 300 fixedly installed in the carriage 200, storage device 400 fixedly installed in the carriage 200 for storing materials, control device for integrated control, conveying device 500 for conveying materials.

[0030] In the embodiment, the vehicle body 100 is mainly composed of two parts, a vehicle head 101 and a vehicle frame 102. The vehicle head 101 includes a cab, an engine, a transmission system, a braking system, a steering system, an electrical system, etc., which undertakes the task of moving the entire device. The vehicle frame 102 is the basic frame of the entire vehicle, which has sufficient strength to support the carriage 200 and the various devices fixedly installed in the carriage 200. The solid vehicle frame 102, the powerful engine, and the advanced transmission and braking system work together to ensure that the mixer truck in the embodiment can safely and efficiently complete the task under complex working conditions. The carriage 200 is a square hollow compartment structure, and its main function is to provide installation conditions for other devices other than the vehicle body 100 and to play a role of protection and isolation from external environmental interference.

[0031] The storage device 400 includes a first bin 401 for storing A material, a second bin 402 for storing B material, a third bin 403 for storing aggregate, and a water supply bin 404 for storing water. A horizontal mounting rack 405 is erected in the carriage 200, and the first bin 401, the second bin 402, and the third bin 403 are bolted to the mounting rack 405 in the order from left to right as shown in the figure, so that the bottoms of the first bin 401 and the second bin 402 are suspended inside the carriage 200. Among them, the storage amount of cement is the largest, so the third bin 403 for storing aggregate is fixedly installed above the mixing device 300, so that the aggregate can directly fall into the inlet of the mixing device 300, reducing the transportation distance of the cement by the conveying device 500, and improving the efficiency of mixing. Figure 1

[0032] In the embodiment, the conveying device 500 is a screw conveyor and is arranged directly below the outlets of the first bin 401, the second bin 402, and the third bin 403. The discharge end of the conveying device 500 corresponds to the top inlet position of the mixing device 300, so that the A material, the B material, and the aggregate conveyed by the conveying device 500 can fall into the mixing device 300 for mixing and reaction. In other embodiments, the conveying device 500 can be a belt conveyor with a surrounding plate, a chain conveyor, an air cushion conveyor, or a bucket conveyor inclined downward from the outlet of the first bin 401 to the inlet of the mixing device 300, etc., as long as it can convey the material.

[0033] ​A temperature raising pipe 600 and a temperature lowering pipe 700 are respectively arranged between the water supply tank 404 and the stirring device 300 for communication, a water pump 800 is arranged for pumping water, and a three-way electromagnetic valve 900 is arranged for controlling water flow. Outlet ends of the temperature raising pipe 600 and the temperature lowering pipe 700 are respectively connected to the sidewall of the stirring device 300, inlet ends of the temperature raising pipe 600 and the temperature lowering pipe 700 are respectively connected to two outlets of the three-way electromagnetic valve 900, the remaining one inlet of the three-way electromagnetic valve 900 is connected to the outlet of the water pump 800, and the inlet of the water pump 800 is connected to the water outlet of the water supply tank 404. An electric water heater 601 is arranged on the temperature raising pipe 600 for heating water, and a heat exchanger 701 is arranged on the temperature lowering pipe 700 for lowering the temperature of water.

[0034] In the embodiment, the stirring device 300 is a spiral stirring machine which is a continuous stirring machine composed of a horizontal semicircular material tank and one (or two) shafts provided with spiral blades and driven by a servo motor. A temperature sensor 301 is arranged in the internal material tank of the stirring device 300 for monitoring the temperature condition of the magnesium phosphate cementing material formed in the stirring device 300.

[0035] A water inlet 406 is arranged on the sidewall of the water supply tank 404, and a one-way valve is fixedly arranged on the water inlet 406. The inlet connecting pipe of the one-way valve extends out of the carriage 200, and water can be injected into the water supply tank 404 through the pipe.

[0036] In the embodiment, the control device is a combination of a wireless controller and a remote controller. The controller is electrically connected to the conveying device 500, the water pump 800, the three-way electromagnetic valve 900, the electric water heater 601, the heat exchanger 701 and the temperature sensor 301. The construction personnel only need to remotely operate the remote controller to centrally control the operation of the devices.

[0037] The specific application process is as follows:

[0038] In summer environment, the external temperature is high, and the materials are at a high temperature. If no intervention is made, the magnesium phosphate will quickly condense, and the construction time left for the construction party is insufficient. At this time, the three-way electromagnetic valve 900 is remotely controlled by the remote controller to close the outlet connected to the temperature raising pipe 600, and the inlet connected to the temperature lowering pipe 700 is separately opened. The water flow in the water supply tank 404 is pumped by the water pump 800 and flows into the temperature lowering pipe 700. After being cooled by the heat exchanger 701, the water flows into the stirring device 300, mixes with A material, B material and aggregate, and finally forms magnesium phosphate cementing material with a suitable temperature, thereby prolonging the condensation time of the magnesium phosphate cementing material.

[0039] When used in winter environment, the outside temperature is low, and the materials are at a low temperature. The water in the water tank 404 even has a tendency to freeze. At this time, the outlet connected to the heating pipeline 600 is opened by the remote control three-way electromagnetic valve 900. The water in the water tank 404 is pumped by the water pump 800 and flows into the heating pipeline 600. After being heated by the electric water heater 601, it flows into the stirring device 300. After mixing with A material, B material and aggregate, the magnesium phosphate cement material with appropriate temperature is finally formed, which reduces the setting time of the magnesium phosphate cement material.

[0040] During this process, the temperature data of the magnesium phosphate cement monitored by the temperature sensor 301 is displayed on the remote controller, so that the construction personnel can control the heat exchanger 701 or the electric water heater 601 to adjust the temperature of the water until the temperature of the magnesium phosphate cement reaches the standard requirement, and then flows out of the outlet on the right side of the stirring device 300 to the ground for construction.

[0041] Example two

[0042] Compared with example one, the difference between this embodiment and example one is that the structures of the first material tank 401, the second material tank 402 and the third material tank 403 in the storage device are different. Specifically, taking the first material tank 401 as an example, as shown in Figure 3 and Figure 4 The first material tank 401 includes a material cylinder 401-1 and a heat preservation layer 401-2 covering the outer surface of the material cylinder 401-1. The heat preservation layer 401-2 is made of glass wool material. Glass wool is a lightweight material composed of fine glass fibers, which has good heat insulation performance and low thermal conductivity, and can provide a good heat preservation environment for the materials in the material cylinder 401-1. In other embodiments, the heat preservation layer 401-2 can also be made of rock wool, polystyrene foam board, polyurethane foam and other materials with low thermal conductivity. The material cylinder 401-1 is a hollow cylindrical structure. The solid part of the material cylinder 401-1, i.e. the shell, is embedded with an electric heating wire 401-3 for heating the materials in the material cylinder 401-1. The material cylinder 401-1 is made of aluminum material. Metal materials such as aluminum generally have high thermal conductivity, which can quickly transfer heat. An openable tank door 401-4 is provided at the top of the material cylinder 401-1. The tank door 401-4 can be opened to supplement the materials in the material cylinder 401-1. The second material tank 402 and the third material tank 403 have the same structure as the first material tank 401. It is worth noting that the specifications of the first material tank 401, the second material tank 402 and the third material tank 403 can be adjusted as needed according to the application of the project.

[0043] In the use process of low temperature environment in winter, the temperature of the materials in the first silo 401, the second silo 402 and the third silo 403 can be kept at a desired higher temperature before the materials are mixed through the heating wire 401-3 and the heat preservation layer 401-2, and then the electric water heater 601 is used for fine adjustment, so that the time for the magnesium phosphate cement to reach the standard temperature is greatly shortened, and the working efficiency is improved.

[0044] Embodiment three

[0045] Compared with embodiment one, the difference of the embodiment lies in that the structures of the first silo 401, the second silo 402 and the third silo 403 in the storage device are different. Specifically, taking the first silo 401 as an example, a cooling device is arranged in the first silo 401, and the cooling device can be in the form of a cooling fan, a water-cooled jacket or a tubular heat exchanger.

[0046] In the use process of high temperature environment in summer, the temperature of the materials in the first silo 401, the second silo 402 and the third silo 403 can be reduced to a desired standard temperature before the materials are mixed through the cooling device, and then the heat exchanger 701 is used for fine adjustment, so that the time for the magnesium phosphate cement to reach the standard temperature is greatly shortened, and the working efficiency is improved.

[0047] The above is only an embodiment of the utility model, and the utility model is not limited to the field involved in the embodiment. The specific structures and properties known in the scheme and other common knowledge are not described in detail. It should be noted that, for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which should also be considered as the protection scope of the utility model. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A constant temperature stirring vehicle for magnesium phosphate material, comprising a vehicle body, a vehicle compartment, and a stirring device fixedly installed in the vehicle compartment, characterized in that: The storage device is fixedly installed in the compartment for storing materials, the control device is used for integrated control, and the conveying device is used for conveying materials. The storage device comprises a first bin for storing A materials, a second bin for storing B materials, a third bin for storing aggregates, and a water supply bin for storing water. The third bin is fixedly installed above the stirring device. The water supply bin and the stirring device are respectively provided with a heating pipeline and a cooling pipeline for communication, a water pump for pumping water, and a three-way electromagnetic valve for controlling water flow. An electric water heater is installed on the heating pipeline, and a heat exchanger is installed on the cooling pipeline. A temperature sensor is installed inside the stirring device.

2. The constant temperature stirring vehicle of a magnesium phosphate material according to claim 1, characterized in that: The conveying device is a screw conveyor.

3. The constant temperature agitator cart for a magnesium phosphate material of claim 2, wherein: A water inlet is provided on the side wall of the water supply bin, a one-way valve is fixedly installed on the water inlet, and a pipeline connected to the inlet of the one-way valve extends out of the compartment.

4. The constant temperature stirring vehicle of a magnesium phosphate material according to claim 1 or 3, characterized in that: The first bin comprises a material cylinder and a heat preservation layer covering the outer surface of the material cylinder. An openable bin door is provided on the top of the material cylinder. The second bin and the third bin have the same structure as the first bin.

5. The constant temperature agitator cart for a magnesium phosphate material of claim 4, wherein: The material cylinder is a hollow cylindrical structure. An electric heating wire for heating the materials in the material cylinder is embedded in the solid part of the material cylinder.

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