High polymer grouting device for repairing road cavity

Abstract

The invention discloses a high polymer grouting device for repairing road cavities, and relates to the technical field of grouting machinery. A high polymer double-component raw material barrel is arranged on the left side of the device and connected through a material feeding pipe, a filter screen is arranged on the upper right portion of the device, a pressure pump is arranged below the filter screen and connected with the feeding pipe for feeding, a stirring motor is arranged on the lower right portion of the device, a stirring box is arranged below the stirring motor, and a stirring shaft, a stirring paddle and an auxiliary paddle are arranged in the stirring box. A discharging port and a discharging pipe are arranged on the lower right portion of the device, and the stirring and grouting device is placed on the crawler chassis through a supporting plate. According to the invention, the filter screen is arranged in the high polymer two-component material feeding pipe, the filter screen can filter impurities in raw materials and crystals generated by reaction of high polymer black materials and air, the crystals are prevented from blocking the pipeline, and a filter element of the filter screen is convenient to replace. The stirring box is provided with a stirring motor, a rotating shaft, a stirring paddle and an auxiliary paddle, so that the mixing uniformity degree of high polymer raw materials can be improved, the grouting quality is improved, and the operation is simple and convenient. The supporting plate and the crawler chassis can be carried by less manpower during grouting repair construction of the road cavity, so that the physical strength is saved, and the operation is convenient.

Description

Technical Field

[0001] The present invention patent discloses a polymer grouting device for road cavity repair, which relates to the technical field of grouting machinery. Background Art

[0002] The polymer grouting technology is a newly emerging rapid non-destructive repair technology for expressways at home and abroad in recent years. It has been successfully applied in the rapid repair of infrastructure such as foreign roads, airport runways, and bridgehead bumping. The polymer used in the polymer grouting technology consists of two liquid components respectively contained in different sealed containers. After heating, at a certain mixing ratio under a certain pressure, the two liquids meet at the outlet of the grouting pipeline and undergo a violent chemical reaction. During the reaction process, a fluidized mixture with a relatively high temperature is formed. Under the action of the grouting pressure and the volume expansion of the material reaction, it continuously fills the pores in the surrounding soil and compacts the soil, and can extrude the accumulated water in the subgrade along the cracks or ungrouted pipelines, playing a role in strengthening the soil. However, in the actual operation process, problems such as isocyanate crystallization or impurity blockage of the pipeline, uneven and insufficient mixing of the two-component raw materials, and inconvenient practical operation of the mixing and grouting device will be encountered. Content of the Invention Patent

[0003] The purpose of the present invention patent is to provide a polymer grouting device for road cavity repair. By setting a filter valve in the feed pipe to filter raw material crystallization and impurities and prevent pipeline blockage, setting a stirring paddle and an auxiliary paddle in the mixing tank to make the two-component raw materials be stirred evenly and fully, and setting a crawler chassis under the device, the whole device is simple and convenient to operate, time-saving and labor-saving.

[0004] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0005] A polymer grouting device for road cavity repair, comprising a raw material feeding device, a filtering device, a raw material stirring device, a material conveying device, and a crawler device. The raw material feeding device includes a polymer two-component raw material barrel, with a raw material feeding pipe installed at the barrel opening. A sponge is wrapped around the feeding pipe as a protective material to prevent the pipeline from being damaged during handling and collision. Additionally, a pressure pump is provided at the end of the feeding pipe to pressurize and pump the raw materials, increasing the feeding speed and saving time. A filtering device, namely a filtering valve, is arranged at the bottom of the feeding pipe. The inlet chamber of the filtering valve is fixedly connected to the raw material pipeline by threads. The raw materials pass through the inlet chamber, then through the connection port, enter the filter screen for filtering. After filtering, under the action of pressure, the raw materials enter the discharge chamber, and the discharge chamber is also fixedly connected to the raw material pipeline by threads. After the two-component raw materials enter the mixing tank, the raw material stirring device drives the rotating shaft through a stirring motor. Stirring paddles are connected to the rotating shaft to mix and stir the two-component raw materials. To make the raw materials stirred fully and evenly, auxiliary paddles are arranged on the mixing tank wall. The material conveying device includes a conveying pipe and a pumping pump. The pumping pump is arranged below the discharge port. On the one hand, it can quickly extract the mixed materials to prevent the mixture from solidifying in the mixing tank. On the other hand, it pressurizes the mixed materials, and after pressurization, the mixed materials are grouted into the road cavity for repair. The crawler device includes a bracket, a support plate, and a crawler. The mixing tank is fixed on the support plate through the bracket, and the support plate is further fixed beside the crawler, enabling the entire mixing device to move quickly on the road.

[0006] As a further solution of this invention patent: The filtering valve includes a filter screen and a sealing top cover, and a sealing ring is arranged between the sealing top cover and the filtering chamber.

[0007] As a further solution of this invention patent: The filter screen is made of corrosion-resistant metal, and the filtering valve is fixed by octagonal bolts, which is convenient for disassembly, and the filter screen is convenient for cleaning and replacement.

[0008] As a further solution of this invention patent: The pressure pump is connected to the two-component raw material feeding pipe, and the pressure pump can pressurize the raw materials and quickly transport the raw materials.

[0009] As a further solution of this invention patent: The pumping pump is installed at the bottom of the discharge port, which can pressurize the mixed raw materials and quickly pump them out to prevent the mixture from solidifying in the mixing tank.

[0010] As a further solution of this invention patent: A switch valve is installed in the grouting pipe, which can open and close the grouting pipe or adjust the feeding speed of the grouting pipe.

[0011] As a further solution of this invention patent: The bracket and the support plate are fixedly connected by bolts, and an anti-slip pad is arranged on the support plate.

[0012] Compared with the prior art, the beneficial effects of this invention patent are as follows: In this invention patent, a filter screen is arranged at the end of the two-component raw material pipe, which can filter the crystallization and impurities of the isocyanate raw material to prevent pipeline blockage. Stirring paddles and auxiliary paddles are arranged in the stirring tank, which can fully stir and mix the raw materials evenly. The stirring device is connected to the crawler through the support plate, enabling the entire device to move quickly on the road, with simple and convenient operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a polymer grouting device for road cavity repair;

[0014] Figure 2 It is a schematic structural diagram of a filter valve;

[0015] Figure 3 It is a schematic structural diagram of a stirring tank.

[0016] In the figure: 1 - polymer raw material barrel A, 2 - polymer raw material barrel B, 3 - filter valve 1, 4 - filter valve 2, 5 - pressure pump, 6 - stirring motor, 7 - stirring tank, 8 - grouting pipe, 9 - crawler chassis, 10 - switch valve, 11 - support plate, 12 - inlet chamber, 13 - connection port, 14 - filter screen, 15 - sealing top cover, 16 - discharge chamber, 17 - feed pipe 1, 18 - feed pipe 2, 19 - rotating shaft, 20 - stirring paddle, 21 - auxiliary paddle, 22 - discharge port 1, 23 - discharge port 2, 24 - pumping pump. DETAILED DESCRIPTION OF THE INVENTION

[0017] Please refer to Figures 1 to 3 , in the embodiment of this invention patent, a polymer grouting device for road cavity repair includes polymer raw material barrel A 1 and raw material barrel B 2. The raw materials reach the filter valves 3 and 4 through the feed pipes, and the crystallization and impurities are filtered out. The filter valve includes an inlet chamber 12, a connection port 13, a filter screen 14, and a sealing top cover 15. The filter screen 14 is convenient for disassembly, cleaning, and replacement. The feed pipes are wrapped with foam for protection. The pressure pump 5 pressurizes and conveys the raw materials so that the raw materials can be pressurized and conveyed. A stirring motor 6 is arranged on the stirring tank 7, and a rotating shaft 19, a stirring paddle 20, and an auxiliary paddle 21 are arranged below the stirring motor 6. After the two-component raw materials enter the stirring tank 7, they are fully mixed and stirred evenly, and are discharged through the discharge ports 22 and 23. A pumping pump is arranged below it to pressurize and convey the two-component mixed raw materials to prevent the mixture from solidifying in the stirring tank. A switch valve 10 is arranged in the grouting pipe 8, which can control the opening and closing of the grouting pipe and adjust the size of the grouting volume. The entire stirring device is connected to the support plate 11 through the bracket, and the support plate 11 is connected to the crawler chassis 9, enabling the entire system to move quickly on the road.

[0018] In Figure 1In the Chinese version: The bracket under the stirring tank 7 is fixedly connected to the support plate 11 by bolts, and an anti-slip pad is arranged on the support plate 11.

[0019] In Figure 2 In the Chinese version: The filter valves 3 and 4 include a filter net 14 and a sealing top cover 15, and a sealing ring is arranged between the sealing top cover 15 and the filter chamber.

[0020] In Figure 2 In the Chinese version: The raw material enters the chamber 12, passes through the connection port 13, enters the filter net 14, and then enters the discharge chamber 16. The filter net 14 is made of corrosion-resistant metal.

[0021] In Figure 3 In the Chinese version: A pumping pump 24 is installed at the bottom of the stirring tank to pressurize and pump the mixture.

[0022] In Figure 3 In the Chinese version: A switch valve 10 is installed in the grouting pipe 8, and the opening and closing of the grouting pipe 8 and the grouting volume can be adjusted through the switch valve.

Claims

1. A polymer grouting device for road cavity repair, It is characterized in that The invention comprises a polymer raw material A barrel (1), a polymer raw material B barrel (2), a filter valve 1 (3), a filter valve 2 (4), a pressure pump (5), a stirring motor (6), a stirring box (7), a grouting pipe (8), a crawler chassis (9), a switch valve (10), a support plate (11), an inlet chamber (12), a connection port (13), a filter screen (14), a sealing top cover (15), a discharge chamber (16), a feed pipe 1 (17), a feed pipe 2 (18), a rotating shaft (19), a stirring paddle (20), an auxiliary paddle (21), a discharge port 1 (22), a discharge port 2 (23), and a material extraction pump (24).

2. A polymer grouting device for road cavity repair according to claim 1, It is characterized in that A filter valve 1 (3) and a filter valve 2 (4) are provided in the polymer two-component feed pipe, a pressure pump (5) is provided below the feed pipe, a stirring box (7) and a grouting pipe (8) are provided below the feed pipe, and the entire stirring and grouting device is arranged on a crawler chassis (9) through a support plate (11).

3. A polymer grouting device for road cavity repair according to claim 1, It is characterized in that The high polymer two-component raw material passes through the feed pipe, enters the inlet chamber (12) of the filter valve, passes through the connection port (13), passes through the filter screen (14), and is discharged through the discharge chamber (16).

4. A polymer grouting device for road cavity repair according to claim 1, It is characterized in that A stirring device is provided below the pressure pump (5). A stirring motor (6) is provided just above the stirring box (7). A stirring shaft (19) is provided in the middle of the stirring box (7). A stirring paddle (20) is connected to the shaft. An auxiliary paddle (21) is provided on the wall of the stirring box (7). A discharge port 1 (22) and a discharge port 2 (23) are provided at the bottom of the stirring box (7). The raw materials are grouted through a grouting pipe (8).

Images