Mixing station powder pipe conveying and sampling device

Abstract

According to the mixing station powder pipe conveying and sampling device, the structural design of the three-way transfer bin is adopted, one side of the three-way transfer bin is connected with the mixing station powder bin, the other side of the three-way transfer bin is provided with the mounting base with the driving cylinder for sealing, the sampling spoon is driven by the driving cylinder to move into the mixing station powder bin for sampling, and in the sampling process, the sampling effect is good; due to the fact that the bearing plate is sealed below the sampling through hole under the supporting effect of the bottom of the guide pipe, automatic quantitative sampling of the powder can be achieved, after sampling is completed, the sampling spoon is driven by the driving cylinder to move to the middle of the three-way transfer bin, and due to the fact that the bearing plate loses supporting, the bearing plate is automatically opened under the gravity effect of the powder. Automatic discharging of powder is achieved, and the sampling bottle at the bottom of the three-way transfer bin is used for bearing and sealing. The powder sampling device is simple in structure, the whole sampling process is in a sealed state, environmental pollution caused by powder overflowing can be effectively avoided, and due to the fact that the capacities of the sampling through holes are relatively consistent, the measurement of each time of sampling is relatively stable.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology for building concrete raw materials, and more specifically, to a powder conveying and sampling device for a mixing plant. Background Technology

[0002] Concrete is currently the most widely used and consumed artificial building material in the world. With the continuous development of the economy, my country's construction industry has developed rapidly, and the amount of infrastructure construction has been increasing. As one of the largest building materials used in modern construction projects, the demand for concrete has surged. At the same time, the demand for concrete raw materials has also increased significantly, leading to a decline in the quality of various raw materials. Therefore, the state of concrete mixtures often fluctuates during concrete production, requiring monitoring of the powder, conducting multiple experiments, analyzing these experimental data, summarizing the causes, and stabilizing the state of the concrete.

[0003] Each test requires extracting cement, fly ash, and mineral powder from the bottom of the silo to recreate the production conditions. Currently, the cement, mineral powder, and fly ash required for concrete testing are mainly obtained through two methods: First, a valve is installed on the bottom side wall of the silo. This sampling method has several drawbacks: the powder is difficult to discharge through the valve, dust pollution is not environmentally friendly, and the sampling valve often becomes clogged due to residual material, making sampling impossible. Second, maintenance personnel are required to open the bottom of the silo for sampling. This sampling method also has some drawbacks: it requires the cooperation of personnel from other departments, consuming manpower; opening the bottom of the silo requires stopping concrete production, affecting production and resulting in low production efficiency; opening the bottom of the silo is dangerous and unsafe, and dust pollution is not environmentally friendly.

[0004] Therefore, it is necessary to propose a powder conveying and sampling device for mixing plants to solve the above problems. Utility Model Content

[0005] This utility model provides a powder conveying and sampling device for a mixing plant to solve the problem that existing concrete powder sampling experiments are dangerous and prone to powder contamination.

[0006] According to one aspect of this utility model, a powder conveying and sampling device for a mixing plant is provided, comprising a guide pipe and a conical three-way transfer chamber. The guide pipe is connected to the powder silo of the mixing plant, one end of the three-way transfer chamber is connected to the guide pipe, and the other end of the three-way transfer chamber is sealed by a mounting base. A drive cylinder is mounted on the mounting base, and a sampling spoon that can pass through the guide pipe is mounted on the telescopic rod of the drive cylinder. The sampling spoon has a sampling through hole, and a support plate is hinged to the bottom of the sampling spoon. The support plate is attached to the bottom of the sampling through hole to form a cavity with a top opening. A sampling bottle is connected to the bottom of the three-way transfer chamber through a valve.

[0007] Based on the above scheme, preferably, the guide tube is connected to the three-way adapter compartment via a flange, and a guide edge is provided at one end of the guide tube that is connected to the three-way adapter compartment. The guide edge extends into the three-way adapter compartment, and the guide edge is inclined downward on the side near the sampling bottle.

[0008] Based on the above scheme, preferably, the guide tube is provided with a guide rail that is compatible with the sampling spoon.

[0009] Based on the above scheme, in a preferred embodiment, when the sampling spoon is introduced into the powder silo of the mixing station for sampling, the free end of the bearing plate overlaps the inner wall of the guide tube.

[0010] Based on the above scheme, the preferred option is that the valve is a manual valve.

[0011] This utility model discloses a powder conveying and sampling device for a mixing plant. It employs a three-way transfer chamber design, with one side connected to the powder silo of the mixing plant and the other side fitted with a sealing mounting base equipped with a drive cylinder. The drive cylinder propels the sampling spoon to move into the powder silo for sampling. During sampling, the supporting plate, supported by the bottom of the guide pipe, seals below the sampling through-hole, enabling automated quantitative sampling of the powder. After sampling, the drive cylinder moves the sampling spoon to the middle of the three-way transfer chamber. As the supporting plate loses its support, it automatically opens under the weight of the powder, achieving automated unloading of the powder, which is then sealed by a sampling bottle at the bottom of the three-way transfer chamber.

[0012] Compared with the prior art, the sampling device for powder conveying in the mixing plant of this utility model has a simple structure and is in a sealed state throughout the sampling process, which can effectively avoid environmental pollution caused by powder spillage. Moreover, since the capacity of the sampling through hole is relatively consistent, the measurement of each sample is relatively stable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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. In the drawings:

[0014] Figure 1 This is a schematic diagram of the material sampling device for the powder conveying pipe of the mixing plant according to this utility model;

[0015] Figure 2 This is a schematic diagram of the unloading of the powder conveying and sampling device for the mixing plant according to this utility model;

[0016] Explanation of icon numbers:

[0017] Guide tube 1, guide edge 11, guide rail 12, tee adapter compartment 2, mounting base 3, drive cylinder 4, sampling spoon 5, sampling through hole 51, bearing plate 52;

[0018] 6. Powder silo of the mixing plant, 61. Valve, 62. Sampling bottle. Detailed Implementation

[0019] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0021] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0022] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0026] Please see Figure 1 and combined Figure 2 As shown, the present invention provides a sampling device for conveying powder in a mixing plant, comprising a guide pipe 1 and a conical three-way transfer chamber 2. The guide pipe 1 is connected to the powder silo 6 of the mixing plant. One end of the three-way transfer chamber 2 is connected to the guide pipe 1, and the other end of the three-way transfer chamber 2 is sealed by a mounting base 3. A sampling bottle 62 is connected to the bottom of the three-way transfer chamber 2 by a valve 61.

[0027] Specifically, the mounting base 3 of this utility model is equipped with a drive cylinder 4, and a sampling spoon 5 is installed on the telescopic rod of the drive cylinder 4. The sampling spoon 5 is provided with a sampling through hole 51, and a bearing plate 52 is hinged to the bottom of the sampling spoon 5. The bearing plate 52 fits against the bottom of the sampling through hole to form a cavity with a top opening for carrying the sample.

[0028] In use, the telescopic rod of the drive cylinder 4 drives the sampling spoon 5 through the guide tube 1 to the powder silo 6 of the mixing station. When it moves to the limit position, the edge of the bearing plate 52 is still attached to the inner edge of the guide tube 1. In this way, the bottom of the sampling through hole 51 is sealed, ensuring that the powder does not leak when it enters the sampling through hole 51. Then, the telescopic rod of the drive cylinder 4 is controlled to retract, driving the sampling spoon 5 to move into the three-way transfer chamber 2. When the sampling spoon 5 moves to the middle position of the three-way transfer chamber 2, the bottom bearing plate 52 loses its support. Under the action of the weight of the powder and its own weight, the bearing plate 52 will automatically rotate around the rotating shaft connected to the sampling spoon 5. In this way, the powder will automatically slide from the sampling through hole 51 into the three-way transfer chamber 2 and fall into the sampling bottle 62 by its own weight. The valve 61 is then closed to achieve fully automated sealed transfer and sampling.

[0029] Preferably, the guide tube 1 of this utility model is connected to the three-way transfer chamber 2 by a flange, and a guide edge 11 is provided at the end of the guide tube 1 that is connected to the three-way transfer chamber 2. The guide edge 11 extends into the three-way transfer chamber 2, and the side of the guide edge 11 near the sampling bottle 62 is inclined downward. By utilizing the guiding and supporting force of the guide edge 11, the unloading action of the bearing plate 52 can be effectively transferred to the middle of the three-way transfer chamber 2, avoiding premature unloading and the problem of residual powder inside the three-way transfer chamber 2.

[0030] In order to reduce the frictional force between the sampling spoon 5 and the guide tube 1 and to avoid material spillage caused by the unstable movement of the sampling spoon 5 in the guide tube 1, this utility model provides a guide rail 12 adapted to the sampling spoon 5 in the guide tube 1. When the sampling spoon 5 is introduced into the powder silo 6 of the mixing station for sampling, the free end of the bearing plate 52 overlaps the inner wall of the guide tube 1.

[0031] Preferably, the valve 61 of this invention is a manual valve 61 or a solenoid valve 61, so as to achieve rapid sealing and locking of the sampling bottle 62.

[0032] This utility model discloses a powder conveying and sampling device for a mixing plant. It employs a three-way transfer chamber 2, with one side connected to the powder silo 6 of the mixing plant and the other side fitted with a mounting base 3 equipped with a drive cylinder 4 for sealing. The drive cylinder 4 drives the sampling spoon 5 to move into the powder silo 6 for sampling. During sampling, the supporting plate 52, supported by the bottom of the guide pipe 1, is sealed below the sampling through-hole, enabling automated quantitative sampling of the powder. After sampling, the drive cylinder 4 moves the sampling spoon 5 to the middle of the three-way transfer chamber 2. As the supporting plate 52 loses its support, it automatically opens under the gravity of the powder, achieving automated unloading of the powder, which is then sealed by the sampling bottle 62 at the bottom of the three-way transfer chamber 2.

[0033] Compared with the prior art, the sampling device for powder conveying in the mixing plant of this utility model has a simple structure and is in a sealed state throughout the sampling process, which can effectively avoid environmental pollution caused by powder spillage. Moreover, since the capacity of the sampling through hole is relatively consistent, the measurement of each sample is relatively stable.

[0034] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A powder conveying and sampling device for a mixing plant, characterized in that, The device includes a guide pipe and a conical T-junction junction box. The guide pipe is connected to the powder silo of the mixing plant. One end of the T-junction junction box is connected to the guide pipe, and the other end of the T-junction junction box is sealed by a mounting base. A drive cylinder is mounted on the mounting base. A sampling spoon that can pass through the guide pipe is mounted on the telescopic rod of the drive cylinder. The sampling spoon has a sampling through hole, and a support plate is hinged to the bottom of the sampling spoon. The support plate fits against the bottom of the sampling through hole to form a cavity with a top opening. A sampling bottle is connected to the bottom of the T-junction junction box through a valve.

2. The powder conveying and sampling device for a mixing plant as described in claim 1, characterized in that, The guide tube is connected to the three-way adapter compartment via a flange, and a guide edge is provided at one end of the guide tube that connects to the three-way adapter compartment. The guide edge extends into the three-way adapter compartment, and the guide edge is inclined downward on the side near the sampling bottle.

3. The powder conveying and sampling device for a mixing plant as described in claim 1, characterized in that, The guide tube is equipped with a guide rail that is compatible with the sampling spoon.

4. The powder conveying and sampling device for a mixing plant as described in claim 1, characterized in that, When the sampling spoon is inserted into the powder silo of the mixing station to take a sample, the free end of the bearing plate overlaps the inner wall of the guide tube.

5. The powder conveying and sampling device for a mixing plant as described in claim 1, characterized in that, The valve is a manual valve.

Images