A wet shotcrete vehicle for spraying ultra high performance concrete
By integrating generators, air compressors, and other equipment onto the wet spraying truck, the problems of large size and difficulty in collaborative work of existing equipment have been solved, enabling rapid and efficient concrete spraying construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TRANSPORTATION INST
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-07
AI Technical Summary
Existing self-propelled spraying equipment is large in size, requires external power supply and water tank, and is difficult to coordinate, affecting construction efficiency and quality.
Design a wet spraying vehicle for spraying ultra-high performance concrete, integrating a generator, air compressor, mixer, material pump, and spraying equipment on a mobile platform, with a reasonable layout to achieve rapid construction.
Through integrated design, rapid and efficient concrete spraying construction was achieved, improving construction efficiency and quality.
Smart Images
Figure CN224468263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering equipment technology, and more specifically, to a wet spraying vehicle for spraying ultra-high performance concrete. Background Technology
[0002] my country's bridge construction started relatively early. As bridge structures have served for longer periods, some operational bridges have developed defects such as rust, exposed reinforcement, and concrete surface spalling, severely impacting their durability and reducing their service life. Currently, commonly used repair materials include polymer cement mortar, typically applied using a spraying process. The main steps include surface preparation, spraying the repair material onto the surface using a wet spraying machine, and curing.
[0003] Existing self-propelled shotcrete machines are automated devices used for concrete repair, capable of efficiently and evenly spraying concrete material onto the surface of crash barriers, improving repair quality and efficiency. However, they suffer from drawbacks such as large equipment size, the need for external power supply, water tanks, air compressors, and other equipment to operate, and difficulties in coordinating the operation of various components.
[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content
[0005] The purpose of this utility model is to provide a wet spraying vehicle for spraying ultra-high performance concrete, aiming to solve at least one of the technical problems existing in the prior art. To achieve the above objective, the technical solution adopted is as follows:
[0006] A wet spraying vehicle for spraying ultra-high performance concrete includes a mobile platform with a cargo compartment on the platform. The interior space of the cargo compartment is divided into a first enclosed area, a second enclosed area, and a semi-enclosed area arranged sequentially from front to back by a partition wall. A generator and an air compressor are installed in the first enclosed area. A manhole is provided in the partition wall between the first and second enclosed areas. A premixed material storage rack, a quick-setting agent storage tank, a water tank, a delivery pump, a mixer, and a material pump are installed in the second enclosed area. A manhole is provided in the partition wall between the second and semi-enclosed areas. The rear side of the semi-enclosed area is the cargo compartment door, and the spraying equipment is installed in the semi-enclosed area.
[0007] The generator is used to power the air compressor, mixer, pump feeder and delivery pump. The air compressor is connected to the injection equipment through a high-pressure air pipe, the pump feeder is connected to the injection equipment through a pump feed pipe, the accelerator storage tank is connected to the delivery pump through an accelerator pipe, and the delivery pump is connected to the injection equipment through an accelerator pipe.
[0008] Preferably, the mobile platform is a truck with a load capacity of 8-12t.
[0009] Preferably, the front-to-back length of the carriage is 7-10m, and the left-to-right width is 2-3m.
[0010] Preferably, the first enclosed area is provided with an inner partition wall, which divides the first enclosed area into a left enclosed area and a right enclosed area arranged in a left-right direction, and the inner partition wall is provided with a manhole.
[0011] Preferably, the generator is located in the left enclosed area, and the air compressor is located in the right enclosed area.
[0012] Preferably, the second enclosed area is divided into a storage area and a working area arranged in the left-right direction. The premixed material storage rack, the quick-setting agent storage tank, the water storage tank and the conveying pump are located in the storage area, and the mixer and the pump are located in the working area.
[0013] Preferably, the power output of the generator shown is not less than the sum of the power outputs of the air compressor, mixer, feed pump, and delivery pump.
[0014] Preferably, a power control box is provided in the second enclosed area, and the power control box is equipped with an air compressor control switch, a mixer control switch, a material pump control switch and a delivery pump control switch.
[0015] Preferably, the pump feed pipe is a high-pressure steel wire rubber hose.
[0016] Preferably, the quick-setting agent tube is a rubber tube.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] This utility model relates to a wet spraying vehicle for spraying ultra-high performance concrete. By integrating and rationally arranging a generator, air compressor, mixer, material pump, delivery pump, and spraying equipment on a mobile platform, and through the cooperation of multiple people, it achieves rapid construction and rapid repair, greatly improving work efficiency. Attached Figure Description
[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] In the diagram: 1. Mobile platform; 2. Carriage; 3. Second enclosed area; 4. Semi-enclosed area; 5. Inner partition wall; 6. Left enclosed area; 7. Right enclosed area; 8. Manhole; 9. Generator; 10. Air compressor; 11. Premixed material storage rack; 12. Accelerator storage tank; 13. Water storage tank; 14. Conveying pump; 15. Mixer; 16. Pumping machine; 17. Spraying equipment; 18. Pumping pipe; 19. Accelerator pipe; 20. Power control box. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] like Figure 1 As shown, a preferred embodiment of this utility model provides a wet spraying vehicle for spraying ultra-high performance concrete, including a mobile platform 1, which is preferably a truck with a load capacity of 8-12t. The truck is equipped with a cargo box 2, which is a container-type structure. The cargo box 2 has a front-to-back length of 7-10m and a left-to-right width of 2-3m. The rear side of the cargo box 2 is equipped with an openable door.
[0025] The interior space of carriage 2 is divided into a first enclosed area, a second enclosed area 3, and a semi-enclosed area 4 arranged sequentially from front to back by partition walls. The first enclosed area is equipped with an inner partition wall 5, which further divides the first enclosed area into a left enclosed area 6 and a right enclosed area 7 arranged in a left-right direction. The inner partition wall 5 has a manhole 8 for easy passage of personnel. A generator 9, preferably a three-phase four-wire diesel generator, is installed in the left enclosed area 6 to supply power to various electrical equipment. An air compressor 10 is installed in the right enclosed area 7. The air compressor 10 is preferably a screw air compressor with a power of not less than 35kW and can provide a working air pressure of 0.4-1.2MPa.
[0026] A manhole 8 is provided in the partition wall between the right closed area 7 and the second closed area 3 in the first closed area to facilitate personnel access. The second closed area 3 is divided into a storage area and a working area arranged in a left-right direction. There is no partition wall between the storage area and the working area. The storage area is equipped with a premix storage rack 11, a quick-setting agent storage tank 12, a water storage tank 13, and a delivery pump 14. The premix storage rack 11 is preferably 0.8m × 1m in plan dimensions and has a storage capacity of 0.5t. It is used to store UHPC premix. The quick-setting agent storage tank 12 is a round plastic bucket with a capacity of not less than 30L. It is used to store the prepared quick-setting agent solution. The water storage tank 13 is a square plastic bucket with a capacity of not less than 100L. It is used to store water used during construction. The working area is equipped with a mixer 15 and a pump 16. The mixer 15 is preferably 200L in mixing capacity. The pump 16 is a screw pump with a pumping capacity of not less than 2m³ / h. 3 / min, with a horizontal pumping distance of not less than 10m and a vertical pumping distance of not less than 8m.
[0027] The partition wall between the second enclosed area 3 and the semi-enclosed area 4 is provided with a manhole 8 connecting the storage area and the semi-enclosed area 4 to facilitate personnel entry and exit. The rear side of the semi-enclosed area 4 is the carriage door. The semi-enclosed area 4 is equipped with a spraying device 17, which consists of a nozzle and a spray pipe connected to the nozzle.
[0028] Furthermore, the generator 9 is used to supply power to the air compressor 10, mixer 15, pump 16 and conveying pump 14, and the power output of the generator 9 is not less than the sum of the power of the air compressor 10, mixer 15, pump 16 and conveying pump 14.
[0029] Air compressor 10 is connected to injection equipment 17 via a high-pressure air duct (not shown in the figure). Pump feeder 16 is connected to injection equipment 17 via pump feed pipe 18, which is a high-pressure steel wire rubber hose. Accelerator storage tank 12 is connected to delivery pump 14 via accelerator pipe 19, which is connected to injection equipment 17 via accelerator pipe 19, which is a common rubber hose. All the above lines and pipes are laid out overhead.
[0030] The second enclosed area 3 is equipped with a power control box 20, which contains control switches for the air compressor, mixer, material pump, and conveying pump. The power control box has four 380V terminals and one 220V terminal, and each individual power supply has overload and short-circuit protection, and each individual power supply is equipped with a separate control switch.
[0031] When using the aforementioned wet spraying truck to repair bridges, four people are required to work together: the first person drives the vehicle, the second person is responsible for loading the materials, the third person is responsible for mixing the UHPC, and the fourth person is responsible for the spraying. Before starting construction, start the generator 9, turn on the air compressor 10, set the working air pressure for pressurization, pour the UHPC premix into the mixer 15, turn on the mixer control switch in the power box, and while mixing, add an appropriate amount of water to the mixer 15 according to the ratio, continue mixing for 5-10 minutes, open the discharge port of the mixer 15, pour the mixed UHPC into the pump 16, turn on the pump control switch, open the air compressor outlet valve to output high-pressure air, turn on the delivery pump control switch to pump the accelerator, the UHPC mixture and accelerator are evenly mixed at the nozzle, dispersed by high-pressure air, and sprayed onto the surface of the structure to be repaired, thus completing the construction.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A wet spraying vehicle for spraying ultra-high performance concrete, characterized in that, The system includes a mobile platform with a carriage. The interior space of the carriage is divided into a first enclosed area, a second enclosed area, and a semi-enclosed area arranged sequentially from front to back by a partition wall. The first enclosed area is equipped with a generator and an air compressor. The partition wall between the first and second enclosed areas has a manhole. The second enclosed area is equipped with a premixed material storage rack, a quick-setting agent storage tank, a water storage tank, a transfer pump, a mixer, and a material pump. The partition wall between the second enclosed area and the semi-enclosed area has a manhole. The rear side of the semi-enclosed area is the carriage door, and the semi-enclosed area is equipped with spraying equipment. The generator is used to power the air compressor, mixer, pump feeder and delivery pump. The air compressor is connected to the injection equipment through a high-pressure air pipe, the pump feeder is connected to the injection equipment through a pump feed pipe, the accelerator storage tank is connected to the delivery pump through an accelerator pipe, and the delivery pump is connected to the injection equipment through an accelerator pipe.
2. The wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The mobile platform is a truck with a load capacity of 8-12 tons.
3. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The carriage is 7-10m long from front to back and 2-3m wide from side to side.
4. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The first enclosed area is provided with an inner partition wall, which divides the first enclosed area into a left enclosed area and a right enclosed area arranged in a left-right direction. The inner partition wall is provided with a manhole.
5. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 4, characterized in that, The generator is located in the left enclosed area, and the air compressor is located in the right enclosed area.
6. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The second enclosed area is divided into a storage area and a working area arranged in the left and right directions. The premixed material storage rack, quick-setting agent storage tank, water storage tank and conveying pump are located in the storage area, and the mixer and pump are located in the working area.
7. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The generator shown has a power output that is not less than the sum of the power outputs of the air compressor, mixer, feed pump, and delivery pump.
8. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, A power control box is installed in the second enclosed area. The power control box contains control switches for the air compressor, mixer, material pump, and conveying pump.
9. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The pump feed pipe is made of high-pressure steel wire rubber hose.
10. A wet spraying vehicle for spraying ultra-high performance concrete according to claim 1, characterized in that, The quick-setting agent tube is made of rubber.