Soil body screening and moisture content adjusting device

Abstract

The utility model discloses a soil body screening and moisture content adjusting device which comprises a stainless steel box body, a vibrating screen, a crushing device, a stirring device, an ultrasonic spray head, a camera, a moisture content sensor, a water tank, a computer and a screening area partition plate. A vibrating screen is arranged in the middle in the stainless steel box, a screening space is arranged above the vibrating screen, a feeding port is formed in a top plate of the stainless steel box, and a screening area partition plate is arranged on the side face of the screening space. A crushing device is arranged above the vibrating screen; a stirring device is arranged at the lower part of the stainless steel box; an ultrasonic spray head and a camera are arranged above the stirring device, and the ultrasonic spray head is connected with the water tank; a water content sensor is arranged at the bottom in the stainless steel box body; the vibrating screen, the crushing device, the stirring device, the moisture content sensor, the ultrasonic spray head and the camera are all connected with the computer. According to the utility model, the functions of soil body crushing and moisture content blending are integrally completed, the moisture content uniformity is ensured, and the device is convenient, rapid and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to geotechnical engineering technical field, concretely relates to a soil body screening and moisture content adjusting device. BACKGROUND

[0002] In geotechnical engineering, when indoor geotechnical test or engineering practice is carried out, the geotechnical material needs to be broken into a certain particle size distribution and moisture content condition. The current particle breaking and screening will cause certain dust pollution, and when the moisture content of the soil is adjusted, the moisture content is often uneven, and the high plastic clay such as expansive soil often forms a group due to uneven adjustment, causing uneven samples.

[0003] Therefore, it is necessary to design a new soil body screening and moisture content adjusting device SUMMARY

[0004] The utility model discloses a soil body screening and moisture content adjusting device to solve the problem that the current particle breaking and screening will cause certain dust pollution, and when the moisture content of the soil is adjusted, the moisture content is often uneven, and the high plastic clay such as expansive soil often forms a group due to uneven adjustment, causing uneven samples.

[0005] To achieve the above object, the utility model provides a soil body screening and moisture content adjusting device, including stainless steel box, vibrating screen, crushing device, stirring device, ultrasonic nozzle, camera, moisture content sensor, water tank, computer and screening area baffle;

[0006] The middle part of the stainless steel box is provided with a vibrating screen, and the upper part of the vibrating screen is a screening space; a feeding port is arranged on the top plate of the stainless steel box above the screening space; and a screening area baffle is arranged on the side surface of the screening space.

[0007] A crushing device is arranged above the vibrating screen; a stirring device is arranged at the lower part of the stainless steel box; an ultrasonic nozzle and a camera are arranged above the stirring device; the ultrasonic nozzle is connected with the water tank; a discharging port is arranged on the side surface of the lower part of the stainless steel box; and a moisture content sensor is arranged at the bottom of the stainless steel box.

[0008] The vibrating screen, the crushing device, the stirring device, the moisture content sensor, the ultrasonic nozzle and the camera are connected with the computer.

[0009] In a specific embodiment, the crushing device includes a crushing motor arranged outside the stainless steel box and a crushing blade arranged in the screening space; the crushing blade and the crushing motor are connected through a rotating shaft; and the crushing motor is connected with the computer through a wire.

[0010] In one specific embodiment, the stirring device includes a stirring motor disposed outside a stainless steel box and stirring blades disposed inside the stainless steel box and located above the bottom of the stainless steel box. The stirring blades and the stirring motor are connected by a rotating shaft, and the stirring motor is connected to a computer by a wire.

[0011] In one specific embodiment, the stirring blades are detachably connected to the rotating shaft of the stirring device.

[0012] In one specific embodiment, the discharge port is provided with a sealed structure.

[0013] In one specific embodiment, the screen of the vibrating screen is a detachable screen, which facilitates the replacement of screens with different aperture sizes.

[0014] In one specific embodiment, the soil screening and moisture content adjustment device includes two moisture content sensors, which are symmetrically distributed around the rotation axis of the mixing device.

[0015] In one specific embodiment, the mesh size of the vibrating screen is 1 to 10 mm.

[0016] In one specific embodiment, a sealing cap is provided on the feed inlet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention integrates soil crushing and moisture content adjustment functions, performing both functions within a closed space. Micron-sized particles of water are then sprayed through an ultrasonic nozzle to ensure uniform moisture content, offering convenience, speed, and cost-effectiveness.

[0019] This invention can easily obtain rock and soil granules with different moisture contents under different sieve particle size distributions as needed.

[0020] This invention uses an ultrasonic nozzle to spray water into micron-sized particles while simultaneously stirring, ensuring that the loose soil particles do not clump together due to uneven water spraying during the moisture content adjustment process.

[0021] This invention enables visualization and real-time monitoring of moisture content, allowing observation of soil conditions during the moisture content adjustment process. It incorporates two moisture content sensors to monitor changes in moisture content and the uniformity of soil moisture content adjustment.

[0022] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0025] The components include: 1. Stainless steel housing; 2. Vibrating screen; 3. Crushing device; 4. Mixing device; 5. Ultrasonic nozzle; 6. Camera; 7. Moisture content sensor; 8. Water tank; 9. Computer; 10. Screening area partition; 11. Feed inlet; 12. Discharge outlet. Detailed Implementation

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0027] Example 1

[0028] This utility model provides a soil screening and moisture content adjustment device, including a stainless steel box 1, a vibrating screen 2, a crushing device 3, a stirring device 4, an ultrasonic nozzle 5, a camera 6, a moisture content sensor 7, a water tank 8, a computer 9, and a screening area partition 10.

[0029] A vibrating screen 2 is installed in the middle of the stainless steel box 1. The upper part of the vibrating screen 2 is the screening space. The top plate of the stainless steel box above the screening space is provided with a feed inlet 11. The screening space is provided with a screening area partition 10 on the side. The screening area partition 10 separates the screening space from other areas inside the stainless steel box.

[0030] A crushing device 3 is installed above the vibrating screen 2; a stirring device 4 is installed at the bottom of the stainless steel box 1; an ultrasonic nozzle 5 and a camera 6 are installed above the stirring device, and the ultrasonic nozzle 5 is connected to the water tank 8; a discharge port 12 is installed on the side of the bottom of the stainless steel box 1; a moisture content sensor 7 is installed at the bottom inside the stainless steel box 1.

[0031] The vibrating screen 2, crushing device 3, stirring device 4, moisture content sensor 7, ultrasonic nozzle 5, and camera 6 are all connected to computer 9. Computer 9 is used to collect data from the moisture content sensor and control the operation of each related component.

[0032] The crushing blades of the crushing device 3 rotate at high speed to crush the soil. The crushed soil is then screened on the vibrating screen 2. The aperture of the vibrating screen is adjusted as needed. The loose soil particles after being sorted on the vibrating screen fall into the moisture content adjustment space below. Screening in the sealed space of the stainless steel box 1 avoids dust pollution.

[0033] Ultrasonic nozzle 5 sprays micron-sized water particles, while the mixing blades rotate at low speed for better mixing. A moisture content sensor monitors the real-time moisture content of the soil. When the moisture content approaches the rated level, ultrasonic nozzle 5 pauses. Once the values ​​from the two moisture content sensors are equal, the time to restart the ultrasonic nozzle is determined based on the difference from the rated moisture content, continuing until the rated moisture content is reached. Camera 6 provides visualization of the moisture content adjustment process.

[0034] The crushing device 3 includes a crushing motor installed outside a stainless steel housing and crushing blades installed in the screening space. The crushing blades and the crushing motor are connected by a rotating shaft, and the crushing motor is connected to a computer 9 by a wire.

[0035] The stirring device 4 includes a stirring motor installed outside the stainless steel box and stirring blades installed inside the stainless steel box 1 and located above the bottom of the stainless steel box. The stirring blades and the stirring motor are connected by a rotating shaft, and the stirring motor is connected to the computer 9 by a wire.

[0036] The stirring blades are detachably connected to the rotating shaft of the stirring device 4.

[0037] The discharge port 12 is equipped with a sealed structure.

[0038] The screen of the vibrating screen 2 is a detachable screen, which makes it easy to replace screens with different aperture sizes.

[0039] The soil screening and moisture content adjustment device includes two moisture content sensors 7, which are symmetrically distributed around the rotating shaft of the mixing device 4.

[0040] The mesh size of the vibrating screen 2 is 1-10 mm.

[0041] A sealing cap is provided on the feed inlet 11.

[0042] Operation process: Take the air-dried expansive soil as an example to obtain a loose soil sample with a sieve size of 2 mm and a moisture content of 20%.

[0043] First, 2 kg of air-dried soil clods are placed into the screening space inside the stainless steel housing 1 through the feed inlet 11. The crushing device 3 is turned on, and the soil is crushed under high-speed rotation. Then, the vibrating screen 2 is turned on to screen the crushed soil, with a sieve mesh size of 2 mm. After the soil on the vibrating screen 2 has basically fallen into the moisture content adjustment space below, the moisture content sensor 7 monitors the moisture content of the soil. Then, the mixing device 4 and ultrasonic nozzle 5 are turned on. The ultrasonic nozzle sprays water from the water tank 8 onto the soil. The sprayed water is divided into micron-sized water particles, which avoids local clumping in high plasticity clays such as expansive soils due to uneven water absorption caused by larger water particles. The mixing blades rotate at low speed to mix the soil, ensuring that the soil is mixed evenly. The camera 6 observes the changes in the state of the soil during the mixing process. As the soil moisture content approaches the target moisture content, the ultrasonic nozzle 5 will stop spraying water, while the mixing blades will continue to agitate until the target moisture content is reached. When the data monitored by the two moisture content sensors are consistent, it indicates that the soil is uniformly mixed. At this point, the process is stopped based on whether the uniform moisture content equals the target moisture content. The spraying rate of the ultrasonic nozzle is adjustable; initially, a higher spraying rate can be set, which will be reduced later to obtain a loose soil sample with the target moisture content. The mixing blades are detachable for easy removal of the loose soil sample from the discharge port 12.

[0044] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions and substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An apparatus for soil screening and moisture adjustment, comprising: The soil body screening and moisture content adjusting device comprises a stainless steel box (1), a vibrating screen (2), a crushing device (3), a stirring device (4), an ultrasonic nozzle (5), a camera (6), a moisture content sensor (7), a water tank (8), a computer (9) and a screening area partition plate (10). The vibrating screen (2) is arranged in the middle of the stainless steel box (1), the upper part of the vibrating screen (2) is a screening space, the upper part of the stainless steel box top plate is provided with a feeding port (11), and the side of the screening space is provided with a screening area partition plate (10); the vibrating screen (2) is provided with a crushing device (3) above; the lower part of the stainless steel box (1) is provided with a stirring device (4); the upper part of the stirring device is provided with an ultrasonic nozzle (5) and a camera (6), and the ultrasonic nozzle (5) is connected with the water tank (8); the side of the lower part of the stainless steel box (1) is provided with a discharging port (12); the bottom of the stainless steel box (1) is provided with a moisture content sensor (7); the vibrating screen (2), the crushing device (3), the stirring device (4), the moisture content sensor (7), the ultrasonic nozzle (5) and the camera (6) are connected with the computer (9).

2. The soil screening and moisture conditioning apparatus of claim 1, wherein, The crushing device (3) comprises a crushing motor arranged outside the stainless steel box and a crushing blade arranged in the screening space, the crushing blade and the crushing motor are connected through a rotating shaft, and the crushing motor is connected with the computer (9) through a wire.

3. The soil screening and moisture conditioning apparatus of claim 1, wherein, The stirring device (4) comprises a stirring motor arranged outside the stainless steel box and a stirring blade arranged in the stainless steel box (1) and located above the bottom of the stainless steel box, the stirring blade and the stirring motor are connected through a rotating shaft, and the stirring motor is connected with the computer (9) through a wire.

4. The soil screening and moisture conditioning apparatus of claim 3, wherein, The stirring blade and the rotating shaft of the stirring device (4) are detachably connected.

5. The soil screening and moisture conditioning apparatus of claim 1, wherein, The discharging port (12) is provided with a sealing structure.

6. The soil screening and moisture conditioning apparatus of claim 1, wherein, The screen of the vibrating screen (2) is a detachable screen, which is convenient for replacing screens with different aperture sizes.

7. The soil screening and moisture conditioning apparatus of claim 1, wherein, The soil body screening and moisture content adjusting device comprises two moisture content sensors (7), and the two moisture content sensors (7) are symmetrically distributed with the rotating shaft of the stirring device (4) as the center.

8. The soil screening and moisture conditioning apparatus of claim 1, wherein, The aperture of the screen of the vibrating screen (2) is 1-10 mm.

9. The soil screening and moisture conditioning apparatus of claim 1, wherein, The feeding port (11) is provided with a sealing cover.

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