Dried sand powder sampling structure

Abstract

The utility model discloses a dried sand powder sampling structure which comprises a first fan and an air chute, and further comprises a material conveying mechanism which is positioned on the outer wall of the top of the air chute, and a sampling mechanism which is positioned on the outer wall of the top of the air chute, and the discharging mechanism is located on the outer wall of one side of the air chute and comprises a conveying pipe, and a discharging pipe is arranged on the outer wall of the circumference of the conveying pipe. The dried sand powder sampling structure disclosed by the utility model has the advantages that air flow and dried sand powder are fully mixed, so that the sampling uniformity and the product quality inspection accuracy are improved, and compared with the traditional manual sampling, the sampling structure effectively prevents the sampling from being influenced by different strength, skills and experiences of operators; and the situation that the sand taking force and speed are not uniform possibly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling of dried sand powder materials, in particular to a sampling structure for dried sand powder materials. Background Art

[0002] Dried sand powder materials, also known as dried sand powder or talcum powder, are a kind of powdered substances after drying treatment, mainly made from sand or other mineral raw materials through processes such as crushing, screening, and drying. This kind of dried sand powder materials usually has smaller particle sizes and higher purities, and is suitable for use in multiple fields such as the construction and concrete industries, and the casting industry.

[0003] The patent document with the application number 202222794638.X discloses a device for sampling quartz sand, including a sampling head. A sampling rod is arranged on the left side of the sampling head, and an adjusting mechanism is arranged on the outer surface of the sampling rod. The adjusting mechanism includes an outer rod, the inner surface of the outer rod is slidably connected with the outer surface of the sampling rod, a through groove is opened inside the outer rod, one end of the sampling rod penetrates and extends into the inside of the through groove, and a limiting rod is fixedly installed on the rear side wall of the inner cavity of the through groove.

[0004] However, traditional sampling of dried sand powder materials usually adopts manual sampling. Due to the differences in the strength, skills, and experience of operators, the strength and speed of sand sampling may be uneven, resulting in uneven sand sampling. If the sampling is uneven, the obtained samples may not accurately represent the quality, particle size distribution, or other characteristics of the entire dried sand powder materials, which may lead to deviations in the evaluation of dried sand powder materials, thus affecting the accuracy of product quality inspection. Summary of the Utility Model

[0005] The utility model discloses a sampling structure for dried sand powder materials, aiming to solve the technical problem that traditional sampling of dried sand powder materials usually adopts manual sampling. Due to the differences in the strength, skills, and experience of operators, the strength and speed of sand sampling may be uneven, resulting in uneven sand sampling. If the sampling is uneven, the obtained samples may not accurately represent the quality, particle size distribution, or other characteristics of the entire dried sand powder materials, which may lead to deviations in the evaluation of dried sand powder materials, thus affecting the accuracy of product quality inspection.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sampling structure for dried sand powder materials, including a first blower and an air chute. The first blower is located on one side of the air chute, and further includes:

[0008] A feeding mechanism: located on the top outer wall of the air chute;

[0009] A discharge mechanism: located on an outer wall of one side of the air chute, the discharge mechanism comprises a conveying pipe, a discharge pipe is provided on the circumferential outer wall of the conveying pipe, a limiting assembly is provided at one end of the conveying pipe, four mounting columns are provided on the outer wall of one side of the limiting assembly, a mounting bin is provided at one end of the four mounting columns, a second fan is provided inside the mounting bin, an air outlet of the second fan is fixedly connected with a mounting pipe, an end of the mounting pipe away from the second fan passes through the limiting assembly and extends to the interior of the conveying pipe, a filter is provided on the circumferential inner wall of the conveying pipe close to the discharge pipe, and a threaded groove is provided on the circumferential outer wall of the discharge pipe.

[0010] When sampling the dried sand powder, first put the dried sand powder into the feeding mechanism, then connect the test tube to be sampled with the discharge pipe, and then start the first fan, which blows the external air into the air chute. At this time, the dried sand powder slides from the high position of the feed port to the low position of the discharge port in the air chute with the air flow to realize transportation. Then the mixture of air and dried sand powder is pressed along the conveying pipe to the discharge pipe, and the dried sand powder is discharged into the sampling test tube through the discharge pipe. There is still a part of the dried sand powder affected by the air flow. After continuing to be transported horizontally, it is intercepted by the filter. In order to prevent long-term accumulation on the surface of the filter, the second fan is started. The second fan blows external air to the surface of the filter through the installation pipe, and blows away the dried sand powder accumulated on the surface of the filter. This device fully mixes the airflow and the dried sand powder, improves the uniformity of sampling and the accuracy of product quality inspection. Compared with traditional manual sampling, it effectively prevents the uneven force and speed of sand taking due to different strength, skills and experience of operators.

[0011] In a preferred solution, the limiting assembly includes a mounting cover plate, the mounting cover plate is sleeved on one end of the conveying pipe, a limiting plate is provided on the circumferential outer wall of the mounting cover plate, and four limiting holes are opened on the top outer wall of the limiting plate.

[0012] When in use, the provided limiting plate is convenient for penetrating limiting holes at different positions according to the actual position of the connecting pipe, and limiting and fixing it, so as to facilitate the connecting pipe to transport the purified airflow.

[0013] In a preferred solution, two exhaust filter caps are provided on the top outer wall of the air chute, and a connecting pipe is provided on the top of one of the exhaust filter caps, and one end of the connecting pipe is connected to the interior of the installation bin.

[0014] The exhaust filter cap filters the airflow and the mixture of dried sand powder and discharges them into the atmosphere. The air discharged from the top of one of the exhaust filter caps is sent to the inside of the installation bin through a connecting pipe, so as to facilitate the secondary use of the purified air.

[0015] As described above, a sampling structure for dried sand powder includes a first fan and an air chute. The first fan is located on one side of the air chute, and further includes:

[0016] A feeding mechanism: located on the outer wall of the top of the air chute;

[0017] A blanking mechanism: located on the outer wall of one side of the air chute. The blanking mechanism includes a conveying pipe. A blanking pipe is provided on the circumferential outer wall of the conveying pipe. A limiting component is provided at one end of the conveying pipe. Four mounting posts are provided on the outer wall of one side of the limiting component. An installation bin is provided at one end of the four mounting posts. A second fan is provided inside the installation bin. An installation pipe is fixedly connected to the air outlet of the second fan. The end of the installation pipe away from the second fan penetrates through the limiting component and extends into the interior of the conveying pipe. A filter screen is provided on the circumferential inner wall of the conveying pipe close to the blanking pipe. A threaded groove is provided on the circumferential outer wall of the blanking pipe. The sampling structure for dried sand powder provided by the present invention has the technical effect that the air flow and the dried sand powder are fully mixed, improving the uniformity of sampling and the accuracy of inspecting the product quality. Compared with the traditional manual sampling method, it effectively prevents the unevenness of the sand taking force and speed that may occur due to the differences in the strength, skills and experience of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a sampling structure for dried sand powder proposed by the present invention.

[0019] Figure 2 FIG. 2 is an enlarged schematic diagram of the structure at A of a sampling structure for dried sand powder proposed by the present invention.

[0020] Figure 3 FIG. 3 is a schematic diagram of the structure of the feeding mechanism of a sampling structure for dried sand powder proposed by the present invention.

[0021] Figure 4 FIG. 4 is a schematic diagram of the structure of the blanking mechanism of a sampling structure for dried sand powder proposed by the present invention.

[0022] In the drawings: 1, first fan; 2, air chute; 3, support frame; 4, first mounting plate; 5, second mounting plate; 6, hopper; 7, rotary feeder; 8, exhaust filter cap; 9, connecting pipe; 10, conveying pipe; 11, blanking pipe; 12, installation cover plate; 13, limiting plate; 14, limiting hole; 15, partition board; 16, installation bin; 17, dust-proof net; 18, installation pipe; 19, second fan; 20, filter screen. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0024] A sampling structure for dried sand powder disclosed by the present utility model is mainly applied to the scenario where traditional sampling of dried sand powder usually adopts manual sampling. Due to the differences in the strength, skills, and experience of operators, the force and speed of sand sampling may be uneven, resulting in unevenness of sand sampling. If the sampling is uneven, the obtained sample may not accurately represent the quality, particle size distribution, or other characteristics of the entire dried sand powder, which may lead to deviations in the evaluation of the dried sand powder, thus affecting the accuracy of inspecting the product quality.

[0025] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A sampling structure for dried sand powder includes a first fan 1 and an air chute 2. The first fan 1 is located on one side of the air chute 2, and further includes:

[0026] A feeding mechanism: located on the outer wall of the top of the air chute 2;

[0027] A blanking mechanism: located on the outer wall of one side of the air chute 2. The blanking mechanism includes a conveying pipe 10. A blanking pipe 11 is provided on the circumferential outer wall of the conveying pipe 10. One end of the conveying pipe 10 is provided with a limiting component. Four mounting posts are provided on the outer wall of one side of the limiting component. One end of the four mounting posts is provided with a mounting bin 16. A second fan 19 is provided inside the mounting bin 16. The air outlet of the second fan 19 is fixedly connected with a mounting pipe 18. The end of the mounting pipe 18 away from the second fan 19 penetrates through the limiting component and extends into the interior of the conveying pipe 10. A filter screen 20 is provided on the circumferential inner wall of the conveying pipe 10 close to the blanking pipe 11. Thread grooves are provided on the circumferential outer wall of the blanking pipe 11.

[0028] Wherein, an air inlet is provided on the outer wall of one side of the mounting bin 16, and a dust-proof net 17 is provided on the inner wall of the air inlet to prevent external dust or large particles from entering the interior of the mounting bin 16, thus affecting the use of the second fan 19.

[0029] During specific use, two symmetrically distributed support frames 3 are provided on the bottom outer wall of the air chute 2 , which increase the stability of the device during operation and provide support for the bottom of the air chute 2 .

[0030] Specifically, when sampling the dried sand powder, first put the dried sand powder into the feeding mechanism, then thread the test tube to be sampled with the discharge pipe 11, and then start the first fan 1, the first fan 1 blows the external air into the air chute 2, at this time, the dried sand powder slides from the high position of the feed port to the low position of the discharge port in the air chute 2 with the air flow to realize transportation, and then the mixture of air and dried sand powder is pressed along the conveying pipe 10 to the discharge pipe 11, and the dried sand powder is discharged into the sampling test tube through the discharge pipe 11, and a part of the dried sand powder is still affected by the air flow. The sound continues to be transported horizontally and is intercepted by the filter 20. In order to prevent long-term accumulation on the surface of the filter 20, the second fan 19 is started. The second fan 19 blows external air to the surface of the filter 20 through the installation pipe 18, and blows away the dried sand powder accumulated on the surface of the filter 20. The device fully mixes the airflow and the dried sand powder, thereby improving the uniformity of sampling and the accuracy of testing product quality. Compared with traditional manual sampling, it effectively prevents the occurrence of uneven force and speed of sand taking due to different strength, skills and experience of operators.

[0031] Reference Figure 1 , Figure 2 and Figure 4 In a preferred embodiment, the limiting assembly includes a mounting cover plate 12, which is sleeved on one end of the conveying pipe 10, and a limiting plate 13 is provided on the circumferential outer wall of the mounting cover plate 12, and four limiting holes 14 are opened on the top outer wall of the limiting plate 13.

[0032] Among them, two exhaust filter caps 8 are provided on the top outer wall of the air chute 2, and a connecting pipe 9 is provided on the top of one of the exhaust filter caps 8. One end of the connecting pipe 9 is communicated with the interior of the installation bin 16. The exhaust filter cap 8 filters the airflow and the mixture of dried sand powder and discharges them into the atmosphere. The air discharged from the top of one of the exhaust filter caps 8 is sent to the interior of the installation bin 16 through the connecting pipe 9, which is convenient for the secondary use of the purified air.

[0033] When in use, the provided limiting plate 13 is convenient for penetrating the limiting holes 14 at different positions according to the actual position of the connecting pipe 9 to limit and fix it, so that the connecting pipe 9 can transport the purified airflow.

[0034] Reference Figure 1 and Figure 3 In a preferred embodiment, the feeding mechanism includes a hopper 6, and a rotary feeder 7 is provided on the bottom outer wall of the hopper 6. The rotary feeder 7 is connected to the top outer wall of the air chute 2 through a bearing.

[0035] Specifically, the provided rotary feeder 7 facilitates timely changing of the feeding direction according to the requirements of the actual site layout, enhancing the practicality of the device.

[0036] Referring to Figure 3 and Figure 4 , in a preferred embodiment, a partition 15 is provided inside the air chute 2, and the partition 15 is located above the air outlet of the first blower 1.

[0037] It should be noted that the partition 15 can be made of synthetic fiber. Synthetic fiber has the advantages of wear resistance, high temperature resistance, uniform air permeability, good rigidity, and low moisture absorption, so it is very suitable for use in the sampling process of dried sand powder.

[0038] Wherein, the partition 15 penetrates through both outer walls of the air chute 2, and first mounting plates 4 are provided on both outer walls of the air chute 2. Second mounting plates 5 are provided on both outer walls of the air chute 2. The first mounting plates 4 and the second mounting plates 5 are fixedly connected by bolts, and this setting improves the stability of the partition 15 during installation.

[0039] Specifically, during use, the dried sand powder falls from the hopper 6 onto the upper surface of the partition 15. Since the partition 15 has good air permeability, it can be fully mixed with the air flow, increasing the uniformity of sampling.

[0040] Working principle: When sampling the dried sand powder, first place the dried sand powder into the feeding mechanism, then thread the test tube to be sampled onto the feeding pipe 11, and then start the first blower 1. The first blower 1 blows external air into the inside of the air chute 2. At this time, the dried sand powder slides down from the high-position feeding port to the low-position discharging port along with the air flow in the air chute 2 to achieve transportation. Then, the mixture of air and dried sand powder is pressed along the feeding pipe to the feeding pipe 11. The dried sand powder is discharged through the feeding pipe 11 into the sampling test tube. There is still a part of the dried sand powder that continues to be transported horizontally under the influence of the air flow and is intercepted by the filter screen 20. In order to prevent long-term accumulation on the surface of the filter screen 20, start the second blower 19. The second blower 19 blows external air through the installation pipe 18 onto the surface of the filter screen 20 and blows away the dried sand powder accumulated on the surface of the filter screen 20.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A dried sand powder sampling structure, comprising a first fan (1) and an air chute (2), characterized in that: The first fan (1) is located on one side of the air chute (2), and further comprises: A material feeding mechanism: located on the top outer wall of the air chute (2); A material discharge mechanism: located on an outer wall of one side of the air chute (2), the material discharge mechanism comprises a conveying pipe (10), a material discharge pipe (11) is provided on the circumferential outer wall of the conveying pipe (10), a limit assembly is provided at one end of the conveying pipe (10), four mounting columns are provided on the outer wall of one side of the limit assembly, one end of the four mounting columns is provided with a mounting bin (16), a second fan (19) is provided inside the mounting bin (16), an air outlet of the second fan (19) is fixedly connected to a mounting pipe (18), an end of the mounting pipe (18) away from the second fan (19) passes through the limit assembly and extends to the inside of the conveying pipe (10), a filter screen (20) is provided on the circumferential inner wall of the conveying pipe (10) close to the material discharge pipe (11), and a threaded groove is provided on the circumferential outer wall of the material discharge pipe (11).

2. A dried sand powder sampling structure according to claim 1, characterized in that: An air inlet is provided on an outer wall of one side of the installation bin (16), and a dustproof net (17) is provided on the inner wall of the air inlet.

3. A dried sand powder sampling structure according to claim 2, characterized in that: The limiting assembly comprises a mounting cover plate (12), the mounting cover plate (12) being sleeved on one end of the delivery pipe (10), a limiting plate (13) being provided on the circumferential outer wall of the mounting cover plate (12), and four limiting holes (14) being provided on the top outer wall of the limiting plate (13).

4. A dried sand powder sampling structure according to claim 1, characterized in that: The feeding mechanism comprises a hopper (6), the bottom outer wall of the hopper (6) is provided with a rotary feeder (7), and the rotary feeder (7) is connected to the top outer wall of the air chute (2) via a bearing.

5. A dried sand powder sampling structure according to claim 4, characterized in that: Two exhaust filter caps (8) are provided on the top outer wall of the air chute (2), wherein a connecting pipe (9) is provided on the top of one of the exhaust filter caps (8), and one end of the connecting pipe (9) is in communication with the interior of the installation bin (16).

6. A dried sand powder sampling structure according to claim 5, characterized in that: A partition plate (15) is provided inside the air chute (2), and the partition plate (15) is located above the air outlet of the first fan (1).

7. A dried sand powder sampling structure according to claim 6, characterized in that: The partition plate (15) passes through the outer walls of both sides of the air chute (2), and a first mounting plate (4) is provided on each of the outer walls of both sides of the air chute (2). The outer walls of both sides of the air chute (2) are provided with a second mounting plate (5), and the first mounting plate (4) and the second mounting plate (5) are fixedly connected by bolts.

8. The dried sand powder sampling structure according to claim 1, characterized in that: The bottom outer wall of the air chute (2) is provided with two symmetrically distributed support frames (3).

Images