Powder charging machine for shield foaming agent production

Abstract

The utility model discloses a powder charging machine for shield foaming agent production, which belongs to the technical field of shield foaming agent production and comprises a mixing drum, a first motor is fixedly connected onto the mixing drum, an output shaft of the first motor penetrates through the mixing drum and is provided with a rotating rod, and twenty mixing rods are fixedly connected outside the rotating rod. According to the powder feeding machine for shield foaming agent production, by arranging a first motor, a stirring rod, a cleaning plate and a scraping plate, the stirring rod outside a rotating rod can drive the cleaning plate and the scraping plate to rotate, then raw materials adhering to the inner wall and the inner bottom of the stirring barrel are scraped off, the raw materials fully participate in mixing, and the mixing quality is improved; the first motor continues to run to drive a cleaning plate and a scraping plate to rotate to scrape off the residual foaming agent on the inner wall and the inner bottom of the stirring barrel, so that the foaming agent enters a discharging frame through a discharging groove, the stirring barrel is conveniently and rapidly cleaned, and the situation that more foaming agent is left in the stirring barrel is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of shield tunnel foam agent production technology, specifically a shield tunnel foam agent production powder feeding machine. Background Technology

[0002] Shield tunneling foam agent is a chemical additive used in shield tunneling construction, primarily to improve the properties of the soil, making it more suitable for shield machine excavation. The foam agent can be mixed with materials such as cement slurry through a foaming system to form foamed concrete. This material possesses characteristics such as heat insulation, fire resistance, waterproofing, frost resistance, low elasticity and shock absorption, high fluidity, convenient construction, safety and environmental friendliness, and good overall performance. The production of shield tunneling foam agent requires mixing liquid and powder materials in the mixing chamber of a mixing device. Existing powder feeders leave foam agent residue on the inner wall and bottom of the mixing drum after mixing and discharge. If not cleaned promptly, this residue will participate in the next mixing cycle, affecting the production quality of the foam agent. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a powder feeding machine for producing foaming agent for tunnel boring machines. This solves the problem that when the powder feeding machine finishes mixing and discharges the material, foaming agent remains on the inner wall and bottom of the mixing drum. If it is not cleaned in time, the previously remaining foaming agent will participate in the next mixing process, affecting the production quality of the foaming agent.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a powder feeding machine for producing foaming agent for tunnel boring machines, comprising a mixing drum, a first motor fixedly connected to the mixing drum, a rotating rod installed through the output shaft of the first motor passing through the mixing drum, twenty mixing rods fixedly connected to the outside of the rotating rod, the mixing rods being grouped into sets of five, a cleaning plate fixedly connected to one end of each set of mixing rods, an installation plate installed under the cleaning plate, the installation plate being fixedly connected to the bottom of the rotating rod, a scraper installed under the installation plate, the scraper being slidably connected to the bottom of the mixing drum, a discharge trough being provided at the bottom of the mixing drum, and a discharge frame fixedly connected to the bottom of the mixing drum, the discharge frame being positioned corresponding to the discharge trough.

[0005] As a further embodiment of this utility model: a second motor is fixedly connected to one side of the discharge frame, and a connecting rod is provided through the output shaft of the second motor passing through the discharge frame. A pushing blade is fixedly connected to the outside of the connecting rod.

[0006] As a further embodiment of this utility model: a baffle is slidably connected to the inner wall of the feeding trough, and a handle is fixedly connected to one end of the baffle.

[0007] As a further embodiment of this utility model: a liquid inlet is provided on the stirring drum, a liquid distribution plate is provided through the liquid inlet and the liquid distribution plate is fixedly connected to the top of the stirring drum, and several liquid outlet pipes are provided below the liquid distribution plate.

[0008] As a further embodiment of this utility model: a solid feed rack is provided on the stirring drum, and a third motor is fixedly connected to one side of the solid feed rack.

[0009] As a further embodiment of this utility model: the output shaft of the third motor is provided with an output gear, the output gear is externally connected to a transmission gear, and the output gear and the transmission gear pass through the solid feed rack and are provided with a crushing rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This shield tunnel foam agent production powder feeding machine is equipped with a first motor, a stirring rod, a cleaning plate, and a scraper. The first motor drives the rotating rod to rotate via its output shaft. This allows the stirring rod outside the rotating rod to stir and mix the raw materials inside the mixing drum, while simultaneously driving the cleaning plate and scraper to rotate. This scrapes off the raw materials adhering to the inner wall and bottom of the mixing drum, ensuring that the raw materials fully participate in the mixing and improving the mixing quality. When the mixing drum discharges, the first motor continues to run, driving the cleaning plate and scraper to scrape off any remaining foam agent from the inner wall and bottom of the mixing drum. The foam agent then enters the discharge frame through the discharge chute, facilitating rapid cleaning of the mixing drum and preventing excessive foam agent residue inside.

[0012] 2. This shield tunnel foam agent production powder feeding machine is equipped with a liquid inlet, a distributor plate, a third motor, and a crushing rod. The third motor drives the output gear to rotate via its output shaft, which in turn drives the transmission gear meshing with the output gear to rotate. This allows the transmission gear and the crushing rod on one side of the output gear to rotate relative to each other, thereby crushing the powder poured into the solid feed rack. This ensures that any lumps in the powder can be fully crushed. When the liquid is poured into the mixing drum through the liquid inlet, the distributor plate disperses the liquid into various outlet pipes below the distributor plate, facilitating the dispersion of the liquid onto the inner wall of the mixing drum. This promotes thorough mixing of the liquid and powder, improving mixing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the stirring drum and the first motor of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the solid feed rack and the third motor of this utility model;

[0016] In the diagram: 1. Mixing drum; 2. First motor; 3. Rotating rod; 4. Mixing rod; 5. Cleaning plate; 6. Mounting plate; 7. Scraper; 8. Feed chute; 9. Discharge frame; 10. Second motor; 11. Connecting rod; 12. Pushing blade; 13. Baffle; 14. Handle; 15. Liquid inlet; 16. Separating plate; 17. Liquid outlet pipe; 18. Solid feed rack; 19. Third motor; 20. Output gear; 21. Transmission gear; 22. Crushing rod. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a powder feeding machine for producing foaming agent for tunnel boring machines, including a mixing drum 1. A liquid inlet 15 is provided on the mixing drum 1. A liquid distribution plate 16 is provided through the liquid inlet 15 and is fixedly connected to the top of the mixing drum 1. Several liquid outlet pipes 17 are provided below the liquid distribution plate 16. By providing several liquid outlet pipes 17 below the liquid distribution plate 16, it is convenient for the liquid to flow into the mixing drum 1 from different liquid outlet pipes 17 when it flows into the liquid distribution plate 16 through the liquid inlet 15, so that the liquid can fully contact the powder.

[0019] A solid feed rack 18 is provided on the mixing drum 1. A third motor 19 is fixedly connected to one side of the solid feed rack 18. An output gear 20 is provided on the output shaft of the third motor 19. A transmission gear 21 is externally connected to the output gear 20. A crushing rod 22 is provided through the solid feed rack 18. When the third motor 19 drives the output gear 20 to rotate, the output gear 20 drives the transmission gear 21 to rotate through the toothed connection with the transmission gear 21. This allows the output gear 20 and the crushing rod 22 on one side of the transmission gear 21 to rotate relative to each other, which facilitates the crushing rod 22 to crush the lumps in the powder.

[0020] A first motor 2 is fixedly connected to the mixing drum 1. The output shaft of the first motor 2 passes through the mixing drum 1 and a rotating rod 3 is installed thereon. Twenty mixing rods 4 are fixedly connected to the outside of the rotating rod 3. The mixing rods 4 are grouped into groups of five. A cleaning plate 5 is fixedly connected to one end of each group of mixing rods 4. By setting the first motor 2, when the raw materials are mixed, the first motor 2 drives the mixing rods 4 to rotate through the rotating rod 3, so that the mixing rods 4 can drive the raw materials to be fully mixed inside the mixing drum 1. When discharging, the first motor 2 drives the cleaning plate 5 and scraper 7 to rotate through the mixing rods 4, so as to clean the inner wall and bottom of the mixing drum 1.

[0021] A mounting plate 6 is installed under the cleaning plate 5. The mounting plate 6 is fixedly connected to the bottom of the rotating rod 3. A scraper 7 is installed under the mounting plate 6. The scraper 7 is slidably connected to the bottom of the mixing drum 1. A feeding trough 8 is opened at the bottom of the mixing drum 1. A baffle 13 is slidably connected to the inner wall of the feeding trough 8. A handle 14 is fixedly connected to one end of the baffle 13. By setting the baffle 13, when the powder and liquid are mixed on the inner wall of the mixing drum 1, the baffle 13 is installed on the inner wall of the feeding trough 8, thereby preventing the insufficiently mixed raw materials from entering the discharge frame 9.

[0022] A discharge frame 9 is fixedly connected to the bottom of the mixing drum 1. The discharge frame 9 is positioned corresponding to the feeding trough 8. A second motor 10 is fixedly connected to one side of the discharge frame 9. The output shaft of the second motor 10 passes through the discharge frame 9 and is connected to a connecting rod 11. A pushing blade 12 is fixedly connected to the outside of the connecting rod 11. By setting the second motor 10, the second motor 10 drives the connecting rod 11 to rotate, thereby allowing the pushing blade 12 outside the connecting rod 11 to push the foaming agent falling into the discharge frame 9, which facilitates pushing the foaming agent to the subsequent processing device for further processing.

[0023] The working principle of this utility model is as follows:

[0024] In use, the third motor 19 is started, causing the output gear 20 to rotate via the output shaft. The output gear 20 then drives the transmission gear 21 to rotate, causing the transmission gear 21 to rotate relative to the crushing rod 22 on one side of the output gear 20. The powder and liquid are then poured into the solid feed rack 18 and liquid feed inlet 15, respectively. After entering the solid feed rack 18, the rotating crushing rod 22 inside the solid feed rack 18 can break up any lumps in the powder. The liquid, after entering the liquid feed inlet 15, flows into the distribution plate 16 below the liquid feed inlet 15, and then flows through different outlet pipes 17 below the distribution plate 16. The mixture is placed into the mixing drum 1, and the first motor 2 is started. The first motor 2 drives the stirring rod 4 to rotate through the rotating rod 3 to stir and mix the raw materials inside the mixing drum 1. After the raw materials are mixed, the handle 14 is pulled, so that the handle 14 moves the baffle 13 out of the feeding trough 8, so that the mixed foaming agent falls into the discharge frame 9 through the feeding trough 8. The second motor 10 drives the pushing blade 12 to rotate through the connecting rod 11 to push the foaming agent. As the first motor 2 continues to drive the stirring rod 4 to rotate, the stirring rod 4 can drive the cleaning plate 5 and the scraper 7 to rotate, thereby scraping the foaming agent remaining in the mixing drum 1 into the feeding trough 8, thus achieving rapid cleaning of the mixing drum 1.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A shield foam concentrate production powder feeder comprising a mixing drum (1), characterized in that: The first motor (2) is fixedly connected on the stirring cylinder (1), the output shaft of the first motor (2) is provided with a rotating rod (3) penetrating through the stirring cylinder (1), the rotating rod (3) is fixedly connected with twenty stirring rods (4) outside, five of the stirring rods (4) are a group, one end of each group of the stirring rods (4) is fixedly connected with a cleaning plate (5), the cleaning plate (5) is provided with a mounting plate (6) below, the mounting plate (6) is fixedly connected with the bottom of the rotating rod (3), the mounting plate (6) is provided with a scraper (7) below, the scraper (7) is slidingly connected with the inner bottom of the stirring cylinder (1), the inner bottom of the stirring cylinder (1) is provided with a discharging groove (8), the stirring cylinder (1) is fixedly connected with a discharging frame (9) below, the discharging frame (9) corresponds to the position of the discharging groove (8).

2. The powder feeding machine for producing a shield foam agent according to claim 1, characterized in that: The discharging frame (9) is fixedly connected with a second motor (10) on one side, the output shaft of the second motor (10) is provided with a connecting rod (11) penetrating through the discharging frame (9), the connecting rod (11) is fixedly connected with a pushing blade (12) outside.

3. The powder feeding machine for producing a shield foam agent according to claim 1, characterized in that: The discharging groove (8) is slidingly connected with a baffle (13) on the inner wall, one end of the baffle (13) is fixedly connected with a handle (14).

4. The powder feeding machine for producing a shield foam agent according to claim 1, characterized in that: The stirring cylinder (1) is provided with a liquid inlet (15), the liquid inlet (15) is provided with a liquid distribution plate (16) penetrating through the stirring cylinder (1), the liquid distribution plate (16) is fixedly connected with the inner top of the stirring cylinder (1), and a plurality of liquid outlets (17) are arranged below the liquid distribution plate (16).

5. The powder feeding machine for producing a shield foam agent according to claim 1, characterized in that: The stirring cylinder (1) is provided with a solid feeding frame (18), and the solid feeding frame (18) is fixedly connected with a third motor (19) on one side.

6. The powder feeding machine for producing a shield foam agent according to claim 5, characterized in that: The output shaft of the third motor (19) is provided with an output gear (20), the output gear (20) is provided with a transmission gear (21) outside, and the output gear (20) and the transmission gear (21) are provided with a crushing rod (22) penetrating through the solid feeding frame (18).

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