Fly ash feeding and sampling device

Abstract

The utility model discloses a fly ash feeding and sampling device which comprises a conveying pipe, the bottom inner wall of the conveying pipe is fixedly connected with a feeding box, the side surface of the feeding box is fixedly connected with a control box, a control mechanism is arranged in the control box, and the control mechanism comprises a button, a first wedge body, a second wedge body, a spring and a shielding plate. The side surface of the button is in sliding connection with the control box, the upper surface of the button is fixedly connected with the first wedge body, the upper surface of the first wedge body is in sliding connection with the second wedge body, the side surface of the second wedge body is fixedly connected with the spring, and the outer surface of the second wedge body is fixedly connected with the shielding plate. The first wedge body and the second wedge body extrude each other and slide, then the second wedge body compresses the spring to move into the groove, at the moment, the feeding port of the feeding box is opened, the coal ash in the conveying pipe enters the feeding box, then the button is loosened, and the shielding plate is closed again.

Description

Technical Field

[0001] The utility model relates to the technical field of fly ash, in particular to a fly ash feeding sampling device. Background Art

[0002] Fly ash is the fine ash collected from the flue gas after coal combustion. It is the main solid waste discharged by coal-fired power plants, but fly ash can be used as a resource, such as as an admixture for concrete. As one of the important materials for concrete, the quality of fly ash directly affects the quality of cement concrete. Fly ash is transported to the mixing silo by the fly ash feeding pipe, and it needs to be sampled and tested during the feeding process.

[0003] The existing fly ash feeding sampling device cannot screen fly ash of different particle sizes, resulting in inaccurate quality detection, affecting the accuracy of fly ash quality judgment, and the sampling operation is cumbersome and inconvenient to use, which reduces work efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a fly ash feeding and sampling device. Through the control mechanism, the fly ash sample can be quickly collected from the conveying pipe. When sampling is needed, the button is pressed upward to make the first wedge and the second wedge squeeze each other and slide, and then the second wedge will compress the spring to move into the groove, and the shutter will slide into the limit groove at the same time. At this time, the feed port of the feed box is opened, and the fly ash in the conveying pipe will enter the feed box, and then the button is released. Under the elastic force of the spring, the shutter is closed again, and the operation is simple and convenient; the first screening net and the second screening net can be used for two screenings, and fly ash of different particle sizes can be screened out, which is convenient for studying the fly ash, and the push rod is driven to extend and shorten by the cylinder, and then the scraper will push and scrape the fly ash on the first screening net to avoid the accumulation of fly ash, improve the screening effect, and have good practicality.

[0005] The utility model also provides a fly ash feeding sampling device as mentioned above, comprising: a conveying pipe, a bottom inner wall of the conveying pipe is fixedly connected to a feed box, a side surface of the feed box is fixedly connected to a control box, a control mechanism is arranged inside the control box, the control mechanism comprises a button, a first wedge, a second wedge, a spring and a shield, the side surface of the button is slidably connected to the control box, the upper surface of the button is fixedly connected to the first wedge, the upper surface of the first wedge is slidably connected to the second wedge, the side surface of the second wedge is fixedly connected to the spring, and the outer surface of the second wedge is fixedly connected to the shield.

[0006] According to the fly ash feeding sampling device, a protrusion is fixedly connected to the side surface of the button, a slide groove is provided on the side inner wall of the control box, and the outer surface of the protrusion is slidably connected to the slide groove.

[0007] According to the fly ash feeding sampling device, a groove is provided inside the control box, and one end of the spring away from the second wedge is fixedly connected to the groove.

[0008] According to the fly ash feeding sampling device, the inner side wall of the feeding box is provided with a limiting groove, and the limiting groove and the shield plate are adapted to each other.

[0009] According to the fly ash feeding sampling device, the shape of the control mechanism is set to be a symmetrical structure, and the shield plate can completely cover the feed port of the feed box.

[0010] According to the fly ash feeding sampling device, a sampling box is provided on the lower surface of the feeding box, and a first screening net is fixedly connected to the side inner wall of the sampling box.

[0011] According to the fly ash feeding sampling device, an installation groove is provided inside the sampling box, the number of the installation grooves is two and they are distributed up and down, the bottom inner wall of the installation groove is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a push rod, the end of the push rod away from the cylinder is fixedly connected to a scraper, the lower surface of the scraper is slidably connected to the first screening net, and the side inner wall of the sampling box is fixedly connected to the second screening net.

[0012] According to the fly ash feeding sampling device, a positioning hole is provided on the lower surface of the feeding box, and a magnet is fixedly connected to the upper surface of the sampling box, and the magnet and the positioning hole are adapted to each other.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall structure of a fly ash feeding sampling device of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of a feed box of a fly ash feeding sampling device of the utility model;

[0017] Figure 3 This is a schematic diagram of the control mechanism structure of a fly ash feeding sampling device of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a sampling box of a fly ash feeding sampling device.

[0019] Legend:

[0020] 1. Conveying pipe; 2. Feed box; 3. Shield; 4. Limiting groove; 5. Control box; 6. Button; 7. First wedge; 8. Second wedge; 9. Spring; 10. Groove; 11. Bump; 12. Slide; 13. Sampling box; 14. First screening net; 15. Mounting groove; 16. Cylinder; 17. Push rod; 18. Scraper; 19. Second screening net; 20. Magnet; 21. Positioning hole. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 The utility model embodiment provides a fly ash feeding sampling device, which comprises: a conveying pipe 1, a feed box 2 is fixedly connected to the bottom inner wall of the conveying pipe 1, a control box 5 is fixedly connected to the side surface of the feed box 2, a control mechanism is arranged inside the control box 5, the control mechanism comprises a button 6, a first wedge 7, a second wedge 8, a spring 9 and a shield 3, the side surface of the button 6 is slidably connected to the control box 5, the upper surface of the button 6 is fixedly connected to the first wedge 7, the upper surface of the first wedge 7 is slidably connected to the second wedge 8, the side surface of the second wedge 8 is fixedly connected to the spring 9, a groove 10 is arranged inside the control box 5, and one end of the spring 9 away from the second wedge 8 is in contact with the groove 10 The outer surface of the second wedge 8 is fixedly connected to the baffle 3, and the inner wall of the feed box 2 is provided with a limit groove 4, the limit groove 4 and the baffle 3 are adapted to each other, and the shape of the control mechanism is set to a symmetrical structure. The baffle 3 can completely cover the feed port of the feed box 2. When sampling is required, the button 6 is pressed upward to make the first wedge 7 and the second wedge 8 squeeze each other and slide, and then the second wedge 8 will compress the spring 9 and move into the groove 10. At the same time, the baffle 3 slides into the limit groove 4. At this time, the feed port of the feed box 2 is opened, and the fly ash in the conveying pipe 1 will enter the feed box 2, and then the button 6 is released, and the baffle 3 is closed again under the elastic force of the spring 9.

[0023] A protrusion 11 is fixedly connected to the side surface of the button 6, and a slide groove 12 is provided on the side inner wall of the control box 5. The outer surface of the protrusion 11 is slidably connected to the slide groove 12. The protrusion 11 not only guides the movement of the button 6, but also ensures that the button 6 will not fall off the control box 5.

[0024] A sampling box 13 is provided on the lower surface of the feed box 2, and a first screening net 14 is fixedly connected to the side inner wall of the sampling box 13. A mounting groove 15 is provided inside the sampling box 13. The number of mounting grooves 15 is two and they are distributed up and down. A cylinder 16 is fixedly connected to the bottom inner wall of the mounting groove 15. A push rod 17 is fixedly connected to the output end of the cylinder 16. A scraper 18 is fixedly connected to the end of the push rod 17 away from the cylinder 16. The lower surface of the scraper 18 is slidably connected to the first screening net 14. The side inner wall of the sampling box 13 is fixedly connected to the first screening net 14. A second screening net 19 is fixedly connected, and two screenings can be performed through the first screening net 14 and the second screening net 19, which can screen out fly ash of different particle sizes, making it convenient to study the fly ash; when the fly ash enters the feed box 2, it will fall onto the first screening net 14 of the sampling box 13, and the start cylinder 16 will drive the push rod 17 to extend and shorten, and then the scraper 18 will push and scrape the fly ash on the first screening net 14 to avoid the accumulation of fly ash, improve the screening effect, and have good practicality.

[0025] A positioning hole 21 is provided on the lower surface of the feed box 2, and a magnet 20 is fixedly connected to the upper surface of the sampling box 13. The magnet 20 and the positioning hole 21 are adapted to each other, and the sampling box 13 is easily installed and disassembled by adapting the magnet 20 and the positioning hole 21.

[0026] Working principle: when sampling is required, the button 6 is pressed upwards to squeeze the first wedge 7 and the second wedge 8 against each other and slide, and then the second wedge 8 will compress the spring 9 and move into the groove 10, and at the same time the shutter 3 will slide into the limit groove 4, at this time the feed port of the feed box 2 is opened, and the fly ash in the conveying pipe 1 will enter the feed box 2, and then the button 6 is released, and under the elastic force of the spring 9, the shutter 3 is closed again; when the fly ash enters the feed box 2, it will fall into the sampling box 13, and the first screening net 14 and the second screening net 19 can be set to screen twice, and fly ash of different particle sizes can be screened out, which is convenient for studying the fly ash, and the cylinder 16 can be started to drive the push rod 17 to extend and shorten, and then the scraper 18 will push and scrape the fly ash on the first screening net 14 to avoid the accumulation of fly ash, improve the screening effect, and have good practicality.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A fly ash feeding sampling device, characterized in that: include: A conveying pipe (1), wherein the bottom inner wall of the conveying pipe (1) is fixedly connected to a feed box (2), the side surface of the feed box (2) is fixedly connected to a control box (5), a control mechanism is arranged inside the control box (5), and the control mechanism comprises a button (6), a first wedge (7), a second wedge (8), a spring (9) and a baffle (3), the side surface of the button (6) is slidably connected to the control box (5), the upper surface of the button (6) is fixedly connected to the first wedge (7), the upper surface of the first wedge (7) is slidably connected to the second wedge (8), the side surface of the second wedge (8) is fixedly connected to the spring (9), and the outer surface of the second wedge (8) is fixedly connected to the baffle (3).

2. A fly ash feeding sampling device according to claim 1, characterized in that: A convex block (11) is fixedly connected to the side surface of the button (6), a sliding groove (12) is provided on the side inner wall of the control box (5), and the outer surface of the convex block (11) is slidably connected to the sliding groove (12).

3. A fly ash feeding sampling device according to claim 1, characterized in that: A groove (10) is provided inside the control box (5), and one end of the spring (9) away from the second wedge (8) is fixedly connected to the groove (10).

4. A fly ash feeding sampling device according to claim 1, characterized in that: The inner side wall of the feed box (2) is provided with a limiting groove (4), and the limiting groove (4) and the shielding plate (3) are mutually adapted.

5. The fly ash feeding sampling device according to claim 1, characterized in that: The shape of the control mechanism is set to be a symmetrical structure, and the shielding plate (3) can completely cover the feed opening of the feed box (2).

6. A fly ash feeding sampling device according to claim 1, characterized in that: A sampling box (13) is provided on the lower surface of the feed box (2), and a first screening net (14) is fixedly connected to the side inner wall of the sampling box (13).

7. A fly ash feeding sampling device according to claim 6, characterized in that: The sampling box (13) is provided with a mounting groove (15) inside, the number of the mounting grooves (15) is two and they are distributed up and down, the bottom inner wall of the mounting groove (15) is fixedly connected to a cylinder (16), the output end of the cylinder (16) is fixedly connected to a push rod (17), the end of the push rod (17) away from the cylinder (16) is fixedly connected to a scraper (18), the lower surface of the scraper (18) is slidably connected to the first screening net (14), and the side inner wall of the sampling box (13) is fixedly connected to a second screening net (19).

8. A fly ash feeding sampling device according to claim 6, characterized in that: The lower surface of the feed box (2) is provided with a positioning hole (21), and the upper surface of the sampling box (13) is fixedly connected with a magnet (20), and the magnet (20) and the positioning hole (21) are mutually adapted.

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