A system for powder transfer

Abstract

This utility model relates to the field of powder loading and unloading technology, specifically to a system for powder transfer, including a transport vehicle, a second tank, a settling tank, and an air supply pipe. The transport vehicle is equipped with a first tank and an air compressor. The first tank has a first air inlet and a first discharge outlet; the first discharge outlet is located at the bottom of the first tank. The air compressor is connected to the first air inlet. The second tank is installed on the ground, and its top has a feed inlet and a first air outlet; the first discharge outlet is connected to the feed inlet. The top of the settling tank has a second air inlet and a second air outlet, and the settling tank is used to fill with clean water. One end of the air supply pipe is connected to the first air outlet, and the other end of the air supply pipe is connected to the settling tank through the second air inlet. This application effectively reduces the direct escape of cement dust into the air, reduces cement powder loss, saves material costs, and reduces environmental pollution, thus having good environmental and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of powder loading and unloading technology, and in particular to a system for powder transfer. Background Technology

[0002] In the construction industry, the traditional method of pumping cement powder from cement trucks to cement silos at construction sites typically uses pneumatic conveying. Specifically, compressed gas is used to propel the powder into the silo. However, during this process, while the compressed gas is fulfilling its function of pushing the powder, it also carries a large amount of cement dust, which is discharged from the top outlet of the silo. This results in a significant amount of powder escaping into the air, creating dust pollution. This phenomenon not only causes unnecessary material loss but also has a serious negative impact on the working environment and threatens the health of workers. Utility Model Content

[0003] The purpose of this invention is to overcome the problem in the prior art where a large amount of powder escapes into the air when cement trucks pump powder into cement silos, leading to physical losses and environmental pollution. Therefore, this invention provides a system for powder transfer.

[0004] This utility model provides a system for powder transfer, comprising: A transport vehicle is provided with a first tank and an air compressor. The first tank is provided with a first air inlet and a first discharge outlet. The first discharge outlet is located at the bottom of the first tank. The air compressor is connected to the first air inlet. The second tank is installed on the ground, and the top of the second tank is provided with a feed inlet and a first air outlet; the first air outlet is connected to the feed inlet. A settling tank, the top of which is provided with a second air inlet and a second air outlet, is used to fill with clean water; A gas supply pipe, one end of which is connected to the first gas outlet, and the other end of which is connected to the sedimentation tank through the second gas inlet.

[0005] The gas delivery pipe can extend into the clear water in the settling tank.

[0006] This invention provides a system for transferring cement powder. A transport vehicle is used to transport a first tank close to a second tank. The first tank contains cement powder. An air compressor is connected to the first air inlet and delivers pressurized air into the first tank, increasing the internal air pressure. The pressurized air pushes the cement powder inside the first tank towards the first outlet. The first outlet is located at the bottom of the first tank, ensuring that the cement powder can more easily approach the outlet under its own weight, allowing it to flow smoothly out of the outlet under the pressure inside the first tank. The second tank is installed at the construction site for temporary storage of cement powder. The first outlet is connected to the inlet, allowing the cement powder flowing from the first outlet to enter the second tank through the inlet. The inlet is located at the top of the second tank, allowing the cement powder to fall naturally into the second tank under gravity after entering. The first vent is used to discharge the gas containing cement dust from the second tank into the settling tank through the gas supply pipe. The first vent is located at the top of the second tank to effectively prevent cement dust from clogging it. The settling tank contains clean water, which is used to clean the gas containing cement dust. Cement particles in the gas are wetted by the clean water and thus separated from the gas. The second vent is connected to the outside atmosphere, discharging the cleaned gas from the settling tank. One end of the gas supply pipe is connected to the first vent, and the other end extends into the clean water inside the settling tank, allowing the gas containing cement dust to be directly introduced into the clean water for treatment.

[0007] This invention provides a system for transferring cement powder. Gas containing cement dust from the second tank is guided to the settling tank via the gas delivery pipe, allowing the gas to fully contact the clean water, thus immersing the cement powder in the water. After cleaning, the gas is discharged into the atmosphere through the second outlet. This effectively reduces the direct escape of cement dust into the air, lowers the physical loss of cement powder, saves material costs, and significantly reduces environmental pollution, resulting in good environmental and economic benefits.

[0008] Preferably, a filter screen is provided at the second air outlet, and the filter screen is connected to the second air outlet by a snap-fit ​​connection. In this design, the filter screen performs secondary filtration on the gas after it has been washed with clean water, effectively intercepting residual cement dust in the gas, thereby further reducing the amount of cement dust emitted into the atmosphere and reducing environmental pollution. Simultaneously, the snap-fit ​​connection between the filter screen and the second air outlet enables detachment. When the filter screen needs to be replaced due to prolonged use, the operator can easily and conveniently disassemble and install it.

[0009] Preferably, the gas supply pipe is equipped with a water inlet located outside the sedimentation tank, near the second air inlet; the water inlet is fitted with a removable sealing cap. In this design, clean water can be added to the sedimentation tank through the water inlet. Simultaneously, when the water inlet is opened and clean water is injected, the water flow flushes the inner wall of the gas supply pipe from the water inlet to the interior of the sedimentation tank, effectively preventing cement accumulation on this section of the pipe and thus preventing the pipe from being blocked by cement, affecting normal use. The water inlet is equipped with a removable sealing cap for sealing when water is not needed.

[0010] Preferably, the bottom of the settling tank is provided with a drain outlet, which is connected to the cement slurry tank of the cement mixing pile. In this design, the main function of the drain outlet is to discharge the water in the settling tank. When gas carrying cement dust enters the settling tank, the clean water in the settling tank will wash the gas. During the washing process, the clean water mixes with the cement dust, eventually forming cement slurry. This cement slurry can be discharged into the cement slurry tank of the cement mixing pile through the drain outlet and used directly for the construction of the cement mixing pile. In this way, waste is effectively utilized, material loss is reduced, and construction costs are saved.

[0011] Preferably, the first tank is equipped with a pressure gauge, a safety valve, and a controller. The controller is electrically connected to both the pressure gauge and the safety valve, and receives signals from the pressure gauge to control the opening and closing of the safety valve. In this design, the main function of the pressure gauge is to detect the internal pressure of the first tank in real time and transmit the detected pressure information to the controller in the form of an electrical signal. The controller controls the safety valve accordingly based on the pressure information. When the actual pressure represented by the pressure information exceeds a preset threshold, the controller immediately issues a control command to open the safety valve. After the safety valve opens, the gas inside the first tank is released, the amount of gas inside the tank decreases, and the pressure drops accordingly, thereby ensuring that the pressure inside the first tank is always maintained within a safe range.

[0012] Preferably, the top of the first tank is provided with an external interface, and the external interface is provided with an openable cover. In this design, the external interface is used to fill the first tank with cement powder. The cover is used to seal the external interface, forming a sealed space inside the first tank. In this way, when the air compressor pressurizes the first tank, a certain pressure can be established inside the first tank.

[0013] Preferably, the first discharge port, the inlet port, and the first vent port are all equipped with sealing rings. In this design, the sealing rings respectively enhance the sealing performance between the first discharge port, the inlet port, and the first vent port and their respective connecting pipes, thereby effectively reducing the possibility of cement powder leakage during transmission.

[0014] Preferably, the second tank is mounted on the ground using a bracket. In this configuration, the bracket serves to stably support and secure the second tank.

[0015] Preferably, the first tank is provided with an observation window. In this design, the main function of the observation window is to allow operators to visually observe the remaining amount of cement powder inside the first tank, thereby enabling them to promptly and accurately monitor the progress of cement powder transfer from the first tank to the second tank.

[0016] Preferably, the inner wall of the gas transmission pipe is coated with a silane coating. In this design, the silane coating is hydrophobic, significantly reducing the wettability between cement powder and the inner wall of the gas transmission pipe. When cement powder comes into contact with a hydrophobic surface, its adhesion decreases dramatically. Therefore, the silane coating effectively reduces the adhesion between cement powder and the inner wall of the gas transmission pipe, thereby significantly reducing the amount of cement powder adhering to the inner wall of the gas transmission pipe. With the reduction in the amount of cement powder adhering, the unobstructed flow of the internal passage of the gas transmission pipe is ensured, thus greatly reducing the possibility of blockage due to cement powder accumulation.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a system for transferring cement powder. Gas containing cement dust from the second tank is guided to the settling tank via the gas delivery pipe, allowing the gas to fully contact the clean water, thus immersing the cement powder in the water. After cleaning, the gas is discharged into the atmosphere through the second outlet. This effectively reduces the direct escape of cement dust into the air, lowers the physical loss of cement powder, saves material costs, and significantly reduces environmental pollution, resulting in good environmental and economic benefits. Attached Figure Description

[0018] Figure 1This is a schematic diagram of a system for transferring powder.

[0019] Marked in the image: 1- Transport vehicle, 2-Air compressor, 3-First tank, 301 - First air inlet, 302 - First discharge outlet, 303 - Pressure gauge, 304 - Safety valve, 305 - External interface. 4-Second tank, 401 - Feed inlet, 402 - First air outlet 5-Sedimentation tank, 501 - Second air inlet, 502 - Second air outlet, 503 - Filter screen, 504 - Clean water, 505 - Drain outlet 6-Gas pipe, 601-water injection port, 7-Staff. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0021] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0023] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0024] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0025] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0026] Example 1 like Figure 1 As shown, a system for transferring powder includes a transport vehicle 1, a second tank 4, a settling tank 5, and a gas pipeline 6.

[0027] The transport vehicle 1 is equipped with a first tank 3 and an air compressor 2. The first tank 3 is equipped with a first air inlet 301 and a first discharge outlet 302. The first discharge outlet 302 is located at the bottom of the first tank 3. The air compressor 2 is connected to the first air inlet 301.

[0028] The second tank 4 is installed on the ground. The top of the second tank 4 is provided with a feed inlet 401 and a first air outlet 402. The first air outlet 302 is connected to the feed inlet 401.

[0029] The settling tank 5 is equipped with a second air inlet 501 and a second air outlet 502 at its top, and is used to fill with clean water 504. Specifically, the settling tank 5 can be located above or below ground.

[0030] One end of the gas supply pipe 6 is connected to the first air outlet 402, and the other end of the gas supply pipe 6 is connected to the sedimentation tank 5 through the second air inlet 501. Specifically, the depth to which the gas supply pipe 6 extends into the clean water 504 can be 15cm-30cm.

[0031] In an optional embodiment, a filter screen 503 may be provided at the second air outlet 502, and the filter screen 503 is connected to the second air outlet 502 by a snap-fit ​​connection. The material of the filter screen 503 may include glass fiber, polyester fiber, or non-woven fabric.

[0032] In an optional embodiment, the gas supply pipe 6 may be provided with a water inlet 601, which is located on the outside of the sedimentation tank 5 and close to the second air inlet 501; the water inlet 601 is provided with a removable sealing cap.

[0033] In an optional embodiment, the bottom of the settling tank 5 may be provided with a drain outlet 505, which is connected to the cement slurry tank of the cement mixing pile. Specifically, the drain outlet 505 is provided with a switch valve.

[0034] In an optional embodiment, the first tank 3 may be equipped with a pressure gauge 303, a safety valve 304 and a controller. The controller is electrically connected to the pressure gauge 303 and the safety valve 304 respectively. The controller is used to receive the signal from the pressure gauge 303 and control the opening and closing of the safety valve 304.

[0035] In an optional embodiment, the top of the first tank body 3 may be provided with an external interface 305, and the external interface 305 is provided with an openable cover.

[0036] In an optional embodiment, the first discharge port 302, the feed port 401, and the first air outlet 402 may all be equipped with sealing rings.

[0037] In an optional embodiment, the second tank 4 can be mounted on the ground using a bracket 7. Specifically, the bracket 7 includes four legs, and the second tank 4 is mounted on the top surface of the bracket 7.

[0038] In an optional embodiment, the first tank 3 is provided with an observation window. Specifically, the observation window is made of a transparent material, such as tempered glass or transparent acrylic. A scale may also be marked on the observation window.

[0039] In an optional embodiment, a silane coating may be provided on the inner wall of the gas transmission pipe 6. Specifically, the thickness of the silane coating may be 0.25 mm to 0.4 mm.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A system for transferring powder, characterized in that, include: The transport vehicle (1) is equipped with a first tank (3) and an air compressor (2). The first tank (3) is equipped with a first air inlet (301) and a first discharge outlet (302). The first discharge outlet (302) is located at the bottom of the first tank (3). The air compressor (2) is connected to the first air inlet (301). The second tank (4) is installed on the ground. The top of the second tank (4) is provided with a feed inlet (401) and a first air outlet (402); the first air outlet (302) is connected to the feed inlet (401). A settling tank (5) is provided with a second air inlet (501) and a second air outlet (502) at the top. The settling tank (5) is used to fill with clean water (504). Gas supply pipe (6), one end of which is connected to the first gas outlet (402), and the other end of which is connected to the sedimentation tank (5) through the second gas inlet (501).

2. The system for powder transfer according to claim 1, characterized in that, A filter screen (503) is provided at the second air outlet (502), and the filter screen (503) is connected to the second air outlet (502) by a snap fastener.

3. The system for powder transfer according to claim 1, characterized in that, The gas supply pipe (6) is provided with a water inlet (601), which is located on the outside of the sedimentation tank (5) and close to the second air inlet (501); the water inlet (601) is provided with a removable sealing cap.

4. A system for powder transfer according to claim 1, characterized in that, The bottom of the settling tank (5) is provided with a drain outlet (505), which is connected to the cement slurry tank of the cement mixing pile.

5. A system for powder transfer according to any one of claims 1-4, characterized in that, The first tank (3) is equipped with a pressure gauge (303), a safety valve (304) and a controller. The controller is electrically connected to the pressure gauge (303) and the safety valve (304) respectively. The controller is used to receive the signal from the pressure gauge (303) and control the opening and closing of the safety valve (304).

6. A system for powder transfer according to claim 5, characterized in that, The top of the first tank (3) is provided with an external interface (305), and the external interface (305) is provided with an openable cover.

7. A system for powder transfer according to claim 5, characterized in that, The first discharge port (302), the feed port (401) and the first air outlet (402) are all equipped with sealing rings.

8. A system for powder transfer according to claim 5, characterized in that, The second tank (4) is installed on the ground by a bracket (7).

9. A system for powder transfer according to claim 5, characterized in that, The first tank (3) is provided with an observation window.

10. A system for powder transfer according to claim 5, characterized in that, The inner wall of the gas pipeline (6) is coated with a silane coating.

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