Vibrator combined with carbon dioxide blasting

Abstract

The utility model belongs to the technical field of engineering machinery, and particularly relates to a vibroflot combined with carbon dioxide blasting, which comprises a vibroflot, a blaster is mounted at the bottom end of the vibroflot, the blaster comprises a cone fixed at the bottom of the vibroflot, a cavity is formed in the center of the inside of the cone, liquid carbon dioxide is injected into the cavity, and the bottom of the vibroflot is provided with a carbon dioxide hole. A valve seat is installed on the lower portion in the cone, a valve sleeve is arranged on the top of the valve seat, the valve seat is flush with the bottom of the cone, a blasting opening is formed in the bottom of the valve seat and is vertically downward, an exhaust port is formed in one side of the valve sleeve, a stepped hole is formed in the inner side of the valve sleeve, and a stepped surface in the valve sleeve is a sealing surface. The sealing face is flush with the bottom of the exhaust port, a valve element is vertically installed in the valve sleeve in a sliding mode, a conical head is arranged at the bottom of the valve element, blasting construction and vibroflotation construction can be carried out at the same time, or the vibroflotation device stops vibrating and waits, and the vibroflotation device does not need to be lifted out of the ground from a pile hole. Therefore, the occupied time is short, and construction equipment does not need to be replaced.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically relating to a vibratory impactor combined with carbon dioxide blasting. Background Technology

[0002] A vibratory compactor is a device suitable for construction in soft soil foundations. The force of the vibratory compactor in drilling comes from its own weight and the disturbance of the soil by horizontal vibration. During construction, vibratory compactors may encounter harder strata, where the pile-forming speed becomes slow, or even impossible to penetrate.

[0003] Current methods for constructing in hard soil, boulder, or hard rock layers include increasing the water jetting effect, first preparing the borehole using rotary drilling, down-the-hole hammer, or other suitable methods, and then deploying a vibratory compactor. However, these methods require significant manpower and equipment, are inefficient, and costly. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a vibratory compactor that combines carbon dioxide blasting, which can blast hard soil layers to improve drilling efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vibratory compactor combined with carbon dioxide blasting includes a vibratory compactor with a blasting device mounted at its bottom. The blasting device includes a cone fixed to the bottom of the vibratory compactor. A cavity is formed in the center of the cone, and liquid carbon dioxide is injected into the cavity. A valve seat is installed at the bottom of the cone, and a valve sleeve is provided at the top of the valve seat. The valve seat is flush with the bottom of the cone, and a blasting port is formed at the bottom of the valve seat, pointing vertically downwards. An exhaust port is formed on one side of the valve sleeve, and a stepped hole is formed on the inner side of the valve sleeve. The stepped surface inside the valve sleeve is a sealing surface, which is flush with the bottom of the exhaust port. A valve core is vertically slidably installed inside the valve sleeve, and a cone is provided at the bottom of the valve core, which fits tightly with the sealing surface. An electric heating plate is provided around the lower half of the cavity, and the electric heating plate is used to heat the liquid carbon dioxide inside the cavity.

[0007] Furthermore, an injection channel is provided between the top side of the cavity and the flange face of the vibrator head. The injection channel is used to inject liquid carbon dioxide into the cavity. A one-way valve is installed on the inner side of the injection channel to control the flow direction inside the injection channel.

[0008] Furthermore, a spring is installed inside the upper part of the valve sleeve. The spring has an initial compression force and is used to move the valve core downward so that the cone head fits tightly against the sealing surface.

[0009] Furthermore, a throttling orifice is provided on the top of one side of the valve sleeve, which is used to discharge residual gas inside the cavity.

[0010] Furthermore, an overflow channel is provided at the top of the inner cavity of the valve sleeve, and an overflow valve is installed inside the overflow channel. The low-pressure chamber of the overflow valve has an overflow port leading to the guide rod cavity at the top of the vibratory impactor.

[0011] Furthermore, an overflow port is provided on the upper side of the cavity to the outside, and the overflow port is used to discharge the gas remaining inside the cavity.

[0012] Compared with the prior art, the advantages of this utility model are: 1. Blasting and vibratory compaction can be carried out simultaneously, or the vibratory compactor can be stopped and waited for, without having to be pulled out of the pile hole to the ground. Therefore, it takes less time and does not require changing construction equipment.

[0013] 2. Carbon dioxide explosion is a physical process that does not produce harmful components and does not cause pollution.

[0014] 3. Its energy-saving effect far exceeds that of using down-the-hole hammers, vibrators, etc. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the vibratory impactor and blasting device of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the blasting mechanism of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Vibratory impactor; 2. Rupture device; 21. Cone; 22. Cavity; 23. Valve seat; 231. Valve sleeve; 232. Exhaust port; 233. Rupture port; 234. Sealing surface; 24. Injection channel; 25. Check valve; 26. Valve core; 261. Cone head; 27. Spring; 28. Throttling orifice; 29. ​​Overflow port; 210. Overflow channel; 211. Overflow valve; 212. Electric heating plate. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] refer to Figure 1 and Figure 2As shown, a vibratory compactor combined with carbon dioxide blasting includes a vibratory compactor 1 and a blasting device 2 installed at the bottom of the vibratory compactor 1. The two are connected by bolts, ensuring that the internal flow channels are connected. The blasting device 2 includes a cone 21 fixed to the bottom of the vibratory compactor 1. The cone 21 has a structure that is larger at the top and smaller at the bottom. A cavity 22 is opened in the center of the cone 21, and liquid carbon dioxide is injected into the cavity 22. A valve seat 23 is installed at the bottom of the cone 21, and a valve sleeve 231 is provided on the top of the valve seat 23. The valve seat 23 is flush with the bottom of the cone 21. A blasting port 233 is opened at the bottom of the valve seat 23, and the blasting port 233 is vertically downward to provide high-speed impact to the soil layer below during blasting. An exhaust port 232 is opened on one side of the valve sleeve 231, so that the high-pressure gas formed in the cavity 22 can be exhausted through the exhaust port 232. Gas enters the valve seat 23 through the port 232 and then exits through the rupture port 233 at the bottom. The inner side of the valve sleeve 231 is a stepped hole with the upper hole diameter larger than the lower hole diameter. The stepped surface inside the valve sleeve 231 is the sealing surface 234, which is flush with the bottom of the exhaust port 232. A valve core 26 is vertically slidably installed inside the valve sleeve 231. The valve core 26 is tightly fitted to the inner wall of the valve sleeve 231. A cone 261 is provided at the bottom of the valve core 26, which is tightly fitted with the sealing surface 234. After sealing, the two prevent liquid leakage inside the cavity 22. An electric heating plate 212 is provided around the lower half of the cavity 22. The electric heating plate 212 is used to heat the liquid carbon dioxide inside the cavity 22, so that the liquid carbon dioxide is heated to form high-pressure gas when rupture is required.

[0021] An injection channel 24 is provided between the top side of the cavity 22 and the flange face of the vibrator head. The injection channel 24 is used to inject liquid carbon dioxide into the cavity 22. A one-way valve 25 is installed on the inner side of the injection channel 24. The one-way valve 25 is used to control the flow direction inside the injection channel 24. The control direction of the one-way valve 25 ensures that the liquid carbon dioxide can only flow into the cavity 22 and cannot flow in the opposite direction.

[0022] refer to Figure 2 As shown, a spring 27 is installed inside the upper part of the valve sleeve 231. The spring 27 has an initial compression force and is used to move the valve core 26 downward so that the cone 261 fits tightly against the sealing surface 234, thereby maintaining a seal under normal conditions.

[0023] Among them, a throttling hole 28 is provided on the top of one side of the valve sleeve 231. The throttling hole 28 is used to cooperate in realizing the opening and closing of the valve core 26.

[0024] refer to Figure 2 As shown, an overflow channel 210 is provided at the top of the inner cavity of the valve sleeve 231. An overflow valve 211 is installed inside the overflow channel 210. The low-pressure chamber of the overflow valve 211 has an overflow port leading to the guide rod cavity at the top of the vibratory impactor.

[0025] The cavity 22 has an overflow port 29 on its upper side, which is used to discharge the gas remaining inside the cavity 22.

[0026] The working principle of this utility model is as follows: During use, a vibratory impactor 1 is used to drill holes. When encountering hard soil, a blasting device 2 can be used for blasting. Liquefied carbon dioxide is injected into the cavity 22 beforehand through the injection channel 24. As the injection volume increases, the carbon dioxide level rises continuously, and residual gas in the cavity 22 is discharged from the overflow port 29 at the top of the cavity. The cavity is filled with liquid carbon dioxide. When blasting is required, the electric heating plate 212 is energized. At this time, the liquid carbon dioxide rapidly heats up and vaporizes, causing a sharp increase in pressure inside the cavity 22. The overflow valve 211 opens, and under high pressure, the valve core 26 lifts, opening the blasting outlet. A large amount of high-pressure gas surges out at high speed, impacting the soil layer through the exhaust port 232 and the blasting port 233, completing the detonation. The electric heating plate 212 stops heating, the pressure inside the cavity 22 decreases, and the valve core 26 closes downwards by the push of the spring 27. At this time, the blasting port 233 closes. The cavity 22 is filled with gaseous carbon dioxide and residual, incompletely vaporized liquid carbon dioxide. Preheating allows the residual liquid to continue vaporizing, and the gas is discharged directly to the outside through overflow hole 29. The vaporization process helps the cavity cool down faster, preparing it for the next blast. The soil layer at the bottom of the vibratory compactor 1 becomes loose, scattered, or brittle due to the blast impact. The hole-forming performance is improved, and the vibratory compactor 1 quickly penetrates through the hard layer.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A vibratory shock absorber combined with carbon dioxide explosion, comprising a vibratory shock absorber (1), characterized in that: A rupture device (2) is installed at the bottom of the vibratory impactor (1). The rupture device (2) includes a cone (21) fixed to the bottom of the vibratory impactor (1). A cavity (22) is opened in the center of the cone (21). Liquid carbon dioxide is injected into the cavity (22). A valve seat (23) is installed at the bottom of the cone (21). A valve sleeve (231) is provided on the top of the valve seat (23). The valve seat (23) is flush with the bottom of the cone (21). A rupture port (233) is opened at the bottom of the valve seat (23). The rupture port (233) is vertically downward. The valve sleeve (231) is located on one side. An exhaust port (232) is provided. The inner side of the valve sleeve (231) is a stepped hole. The stepped surface inside the valve sleeve (231) is a sealing surface (234). The sealing surface (234) is flush with the bottom of the exhaust port (232). A valve core (26) is vertically slidably installed inside the valve sleeve (231). A cone (261) is provided at the bottom of the valve core (26). The cone (261) is in close contact with the sealing surface (234). An electric heating plate (212) is provided around the lower half of the cavity (22). The electric heating plate (212) is used to heat the liquid carbon dioxide inside the cavity (22).

2. The vibratory impactor combined with carbon dioxide explosion according to claim 1, characterized in that: An injection channel (24) is provided between the top side of the cavity (22) and the flange face of the vibrator head. The injection channel (24) is used to inject liquid carbon dioxide into the cavity (22). A one-way valve (25) is installed on the inner side of the injection channel (24). The one-way valve (25) is used to control the flow direction inside the injection channel (24).

3. The vibratory impactor combined with carbon dioxide explosion according to claim 1, characterized in that: A spring (27) is installed inside the upper part of the valve sleeve (231). The spring (27) has an initial compression force and is used to move the valve core (26) down so that the cone (261) fits tightly against the sealing surface (234).

4. A vibratory impactor combined with carbon dioxide explosion according to claim 1, characterized in that: A throttling orifice (28) is provided on the top side of the valve sleeve (231), and the throttling orifice (28) is used to discharge the residual gas inside the cavity (22).

5. A vibratory impactor combined with carbon dioxide explosion according to claim 1, characterized in that: An overflow channel (210) is provided at the top of the inner cavity of the valve sleeve (231). An overflow valve (211) is installed inside the overflow channel (210). The low-pressure chamber of the overflow valve (211) has an overflow port leading to the guide rod cavity at the top of the vibratory impactor.

6. A vibratory impactor combined with carbon dioxide explosion according to claim 1, characterized in that: The upper side of the cavity (22) is provided with an overflow port (29) leading to the outside, and the overflow port (29) is used to discharge the gas remaining inside the cavity (22).

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