Powder conveying and metering device

Abstract

The utility model discloses a powder conveying and metering device which comprises a discharging hopper and a stock bin arranged at the bottom of the discharging hopper. A middle connecting threaded rod is arranged in the middle of the lower connecting supporting mounting rod, a middle connecting threaded ring is arranged on the outer side of the middle connecting threaded rod, an outer connecting column is arranged on the side face of the middle connecting threaded ring, and a connecting telescopic inner column is arranged on the outer side of the built-in extrusion telescopic spring. The middle connecting threaded ring can move up and down by rotating the middle connecting threaded ring, the connecting scraping plate adaptively scrapes and brushes the inner side wall face of the discharging hopper, the middle connecting threaded ring can move up and down by rotating the middle connecting threaded ring, and the connecting scraping plate adaptively scrapes and brushes the inner side wall face of the discharging hopper. Through the improvement, the inner side surface of the blanking hopper can be conveniently scraped, brushed and cleaned, so that the phenomenon that the inner side surface of the blanking hopper is not easy to clean and is stained with excessive powder to influence the subsequent powder conveying is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to mechanical engineering and automatic control, and particularly relates to a powder conveying and metering device. Background Art

[0002] A powder conveying and metering device is a mechanical device used to precisely control and convey powdered materials. It typically includes a screw conveyor, a load cell, and a control system, enabling continuous metering and batching of powdered materials. This device is widely used in industries such as building materials, metallurgy, chemicals, coal, ports, electricity, and ceramics, handling materials such as fly ash, slag powder, raw meal powder, and pulverized coal.

[0003] Powder conveying and metering devices are designed to improve production efficiency, ensure product quality, reduce energy consumption and minimize environmental pollution. By precisely controlling the conveying and metering of materials, these devices help to automate and optimize production processes.

[0004] However, when the powder conveying and metering device is discharging, it is easy for residue to adhere to the inner wall and be difficult to fall down. Excessive accumulation can easily affect subsequent discharging.

[0005] The utility model improves the above-mentioned problem and specifically relates to a powder conveying and metering device for assisting in cleaning the inner wall of a lower hopper. Utility Model Content

[0006] The purpose of the present invention is to provide a powder conveying and metering device to solve the problem that when the powder conveying and metering device proposed in the above background technology is discharged, residues are easily attached to the inner wall surface and are difficult to fall off, and excessive accumulation can easily affect subsequent discharge.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a powder conveying and metering device, comprising a lower hopper and a silo provided at the bottom of the lower hopper;

[0008] A connecting support mounting rod is provided at the middle position of the lower hopper, a central connecting threaded rod is provided at the middle position of the connecting support mounting rod, a central connecting threaded ring is provided at the outer position of the central connecting threaded rod, an outer connecting column is provided at the side position of the central connecting threaded ring, a built-in extrusion and telescopic spring is provided at the middle position of the outer connecting column, a connecting telescopic inner column is provided at the outer position of the built-in extrusion and telescopic spring, a connecting scraper is provided at the end position of the connecting telescopic inner column, which can be moved up and down by rotating the central connecting threaded ring. At the same time, due to the action of the built-in extrusion and telescopic spring, the connecting scraper is adapted to scrape the inner wall of the lower hopper.

[0009] Preferably, the side end of the connecting scraper is a scraper blade, and the connecting scraper is rotatably connected to the connecting telescopic inner column through a rotating shaft.

[0010] Preferably, an upper flip cover is provided at an upper position of the lower hopper, and the upper flip cover is rotatably connected to the lower hopper via a rotating shaft.

[0011] Preferably, a discharge conveying pipe is provided at a bottom side position of the lower hopper, and a flange is provided at the end position of the discharge conveying pipe.

[0012] Preferably, a pneumatic conveying pipe is provided at the right side of the discharge conveying pipe, and a driving pump body is provided in the pneumatic conveying pipe.

[0013] Preferably, a connecting muffler is provided at a side position of the air pressure delivery pipe, and the connecting muffler is installed and connected to the air pressure delivery pipe by screws.

[0014] Preferably, a Roots blower is provided at a side position of the air pressure delivery pipe, and the Roots blower is electrically connected to an external power supply.

[0015] Preferably, a mounting plate is provided at the bottom of the Roots blower, and a weighing platform is provided at the bottom of the mounting plate.

[0016] Compared with the existing technology, the present invention provides a powder conveying and metering device with the following features:

[0017] Beneficial effects:

[0018] In the powder conveying and metering device, a connecting support mounting rod is provided at the middle position of the lower hopper, a central connecting threaded rod is provided at the middle position of the connecting support mounting rod, a central connecting threaded ring is provided at the outer position of the central connecting threaded rod, an outer connecting column is provided at the side position of the central connecting threaded ring, a built-in extrusion and telescopic spring is provided at the middle position of the outer connecting column, a connecting telescopic inner column is provided at the outer position of the built-in extrusion and telescopic spring, and a connecting scraper is provided at the end position of the connecting telescopic inner column. It can be moved up and down by rotating the central connecting threaded ring, and at the same time, due to the action of the built-in extrusion and telescopic spring, the connecting scraper is adapted to scrape and brush the inner wall surface of the lower hopper. Through the improvement of the utility model, the inner side surface of the lower hopper can be conveniently scraped and cleaned, thereby effectively avoiding the phenomenon that the inner side surface of the lower hopper is difficult to clean and is contaminated with too much powder, affecting subsequent powder conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the powder conveying and metering device of the present utility model.

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the powder conveying and metering device of the present utility model.

[0021] Figure 3 This is an enlarged structural diagram of the powder conveying and metering device of the present invention at position A.

[0022] In the figure: 1. Lower hopper; 2. Upper flip cover; 3. Silo; 4. Discharge conveying pipe; 5. Driving pump body; 6. Air pressure conveying pipe; 7. Connection muffler; 8. Roots blower; 9. Mounting plate; 10. Weighing platform; 11. Connection support mounting rod; 12. Center connecting threaded rod; 13. Center connecting threaded ring; 14. Built-in extrusion telescopic spring; 15. External connecting column; 16. Connection telescopic inner column; 17. Connection scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-3 As shown, a powder conveying and metering device includes a lower hopper 1 and a silo 3 arranged at the bottom of the lower hopper 1; a connecting support mounting rod 11 is provided at the middle position of the lower hopper 1, a central connecting threaded rod 12 is provided at the middle position of the connecting support mounting rod 11, a central connecting threaded ring 13 is provided at the outer position of the central connecting threaded rod 12, an outer connecting column 15 is provided at the side position of the central connecting threaded ring 13, and a built-in extrusion telescopic spring 14 is provided at the middle position of the outer connecting column 15. 4 is provided with a connecting telescopic inner column 16 at the outer position, and a connecting scraper 17 is provided at the end position of the connecting telescopic inner column 16. It can be moved up and down by rotating the central connecting threaded ring 13. At the same time, due to the action of the built-in extrusion telescopic spring 14, the connecting scraper 17 is adapted to scrape and brush the inner wall surface of the lower hopper 1. Through the improvement of the utility model, the inner side of the lower hopper 1 can be conveniently scraped and cleaned, thereby effectively avoiding the phenomenon that the inner side of the lower hopper 1 is difficult to clean and is contaminated with too much powder, which affects the subsequent powder conveying.

[0025] like Figure 2 As shown, the side end of the connecting scraper 17 is a scraper blade, and the connecting scraper 17 is rotatably connected to the connecting telescopic inner column 16 through a rotating shaft. The scraper blade can better contact the inner wall of the lower hopper 1 to facilitate shoveling and cleaning.

[0026] like Figure 2 As shown, an upper flip cover 2 is provided at the upper side of the lower hopper 1, and the upper flip cover 2 is rotatably connected to the lower hopper 1 through a rotating shaft. The setting of the upper flip cover 2 can close the lower hopper 1 to prevent dust from being blown out when the lower hopper 1 is unloading, thereby polluting the outside air and wasting resources.

[0027] like Figure 1 and Figure 2 As shown, a discharge conveying pipe 4 is provided at the bottom side position of the lower hopper 1, a flange is provided at the end position of the discharge conveying pipe 4, an air pressure conveying pipe 6 is provided at the right position of the discharge conveying pipe 4, a driving pump body 5 is provided in the air pressure conveying pipe 6, a connecting muffler 7 is provided at the side position of the air pressure conveying pipe 6, the connecting muffler 7 is installed and connected to the air pressure conveying pipe 6 by screws, a Roots blower 8 is provided at the side position of the air pressure conveying pipe 6, and the Roots blower 8 is electrically connected to an external power supply. When in use, the Roots blower 8 is powered on and started by the staff, and then the air pressure generated by the Roots blower 8 causes the fluid of the lower hopper 1 to flow out along the discharge conveying pipe 4. The connecting muffler 7 can effectively reduce the noise generated by the airflow, thereby effectively reducing the impact of the noise on the surrounding environment.

[0028] like Figure 1 and Figure 2 As shown, a mounting plate 9 is provided at the bottom position of the Roots blower 8, and a weighing platform 10 is provided at the bottom position of the mounting plate 9. The weighing platform 10 can weigh the device above, and the weight difference before and after unloading is the weight of the conveyed material.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder conveying and metering device, comprising A lower hopper (1) and a silo (3) provided at the bottom of the lower hopper (1); Its characteristics are: A connecting support mounting rod (11) is provided at the middle position of the lower hopper (1), a central connecting threaded rod (12) is provided at the middle position of the connecting support mounting rod (11), a central connecting threaded ring (13) is provided at the outer position of the central connecting threaded rod (12), an outer connecting column (15) is provided at the side position of the central connecting threaded ring (13), a built-in extrusion telescopic spring (14) is provided at the middle position of the outer connecting column (15), a connecting telescopic inner column (16) is provided at the outer position of the built-in extrusion telescopic spring (14), a connecting scraper (17) is provided at the end position of the connecting telescopic inner column (16), and the central connecting threaded ring (13) can be moved up and down by rotating it. At the same time, due to the action of the built-in extrusion telescopic spring (14), the connecting scraper (17) is adapted to scrape the inner wall surface of the lower hopper (1).

2. A powder conveying and metering device according to claim 1, characterized in that: The side end of the connecting scraper (17) is a scraper blade, and the connecting scraper (17) is rotatably connected to the connecting telescopic inner column (16) via a rotating shaft.

3. The powder conveying and metering device according to claim 1, characterized in that: An upper flip cover (2) is provided at the upper side of the lower hopper (1), and the upper flip cover (2) is rotatably connected to the lower hopper (1) via a rotating shaft.

4. The powder conveying and metering device according to claim 1, characterized in that: A discharge conveying pipe (4) is provided at the bottom side of the lower hopper (1), and a flange is provided at the end of the discharge conveying pipe (4).

5. The powder conveying and metering device according to claim 4, characterized in that: A pneumatic conveying pipe (6) is provided at the right side of the discharge conveying pipe (4), and a driving pump body (5) is provided in the pneumatic conveying pipe (6).

6. The powder conveying and metering device according to claim 1, characterized in that: A connecting muffler (7) is provided at a side position of the air pressure delivery pipe (6), and the connecting muffler (7) is installed and connected to the air pressure delivery pipe (6) by screws.

7. The powder conveying and metering device according to claim 6, characterized in that: A Roots blower (8) is provided at a side position of the air pressure delivery pipe (6), and the Roots blower (8) is electrically connected to an external power supply.

8. The powder conveying and metering device according to claim 7, characterized in that: A mounting plate (9) is provided at the bottom of the Roots blower (8), and a weighing platform (10) is provided at the bottom of the mounting plate (9).

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