Carbide slag dry powder anti-blocking device

Abstract

The utility model relates to a carbide slag dry powder anti-blocking device in the technical field of carbide slag. The carbide slag dry powder anti-blocking device comprises a storage bin, a discharging pipe is arranged at the bottom of the storage bin, a stirring assembly is arranged at the joint of the discharging pipe and the storage bin, and a drying assembly is arranged in the discharging pipe below the stirring assembly. The stirring assembly comprises a horizontal rotating rod, one end of the horizontal rotating rod extends out of the discharging pipe and is connected with a first stepping motor, a plurality of stirring rods are fixed to the horizontal rotating rod, the drying assembly comprises an air distribution ring, the air distribution ring is fixed to the inner wall of the discharging pipe, air spraying holes are evenly distributed in the inner ring face of the air distribution ring, and the air distribution ring is connected with an air inlet pipe. According to the utility model, crushing can be carried out when carbide slag dry powder in the storage bin blocks the discharge pipe, the discharge pipe is prevented from being blocked, and when the discharge pipe is not blocked, the stirring assembly does not work, so that energy is saved; and meanwhile, the dry powder can be dried, blockage caused by caking of the dry powder due to high humidity during pneumatic transportation is avoided, the dry powder transportation efficiency is improved, and subsequent production is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of calcium carbide slag technology, specifically relating to a calcium carbide slag dry powder anti-clogging device. Background Technology

[0002] Calcium carbide slag is the waste residue mainly composed of calcium hydroxide after the hydrolysis of calcium carbide to obtain acetylene gas. Calcium carbide slag can be used to replace limestone in cement production, produce quicklime for use as a raw material for calcium carbide, produce chemical products, manufacture building materials, and for environmental remediation. However, due to its strong hygroscopic properties, calcium carbide slag powder is prone to clumping during storage, causing blockages and hindering unloading, thus affecting subsequent production. Therefore, a device to prevent clogging of dry calcium carbide slag powder is needed to solve these technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in the existing technology, this utility model provides an anti-clogging device for carbide slag dry powder, including a storage silo, a discharge pipe at the bottom of the storage silo, a stirring assembly at the connection between the discharge pipe and the storage silo, and a drying assembly in the discharge pipe below the stirring assembly.

[0004] The stirring assembly includes a horizontal rotating rod, one end of which extends out of the discharge pipe and is connected to a stepper motor. The horizontal rotating rod intersects the central axis of the discharge pipe. Multiple stirring rods are fixed on the horizontal rotating rod, and the stirring rods are perpendicular to the horizontal rotating rod. The ends of the multiple stirring rods away from the horizontal rotating rod are distributed on the circumference of the same circle. The diameter of the circumference is smaller than the inner diameter of the discharge pipe. This arrangement ensures that the stirring assembly does not work when the discharge pipe is not blocked, saving energy. At this time, the circular surface of each stirring rod is parallel to the central axis of the discharge pipe, reducing obstruction to the dry powder. When blocked, the horizontal rotating rod rotates, and the stirring rods rotate with the horizontal rotating rod, which can effectively disperse the material in the storage bin and the discharge pipe.

[0005] The drying assembly includes an air distribution ring fixed to the inner wall of the discharge pipe. Air jet holes are evenly distributed on the inner surface of the air distribution ring, which is connected to an air inlet pipe. Under the stirring action of the mixing assembly, clumps of dry powder are broken up. As the dry powder passes through the air distribution ring, hot air is introduced into the discharge pipe to dry it. The broken up and dried powder is then discharged from the discharge pipe, preventing the powder from clumping and clogging the discharge pipe, thus avoiding poor discharge.

[0006] Preferably, the lower end of the discharge pipe is connected to a horizontal guide pipe, and an air inlet pipe is provided on the discharge pipe corresponding to the guide pipe. High-pressure air is introduced into the air inlet pipe to pneumatically convey the dry powder falling from the discharge pipe.

[0007] Preferably, a rotating tube is provided between the feed pipe and the air inlet pipe. Both ends of the rotating tube are rotatably connected to the discharge pipe and the feed pipe respectively via bearings. Multiple lifting plates are evenly fixed along the axis on the inner wall of the rotating tube, and a rack is fixed on the outer wall of the rotating tube. The rack meshes with gears, and the gears are connected to a second stepper motor. The second stepper motor drives the rotating tube to rotate, and the lifting plates step forward, lifting the dry powder inside the rotating tube and then letting it fall back down, further dispersing the dry powder, making the drying process more efficient and facilitating the pneumatic conveying of the dry powder.

[0008] Preferably, a sensor is installed on the discharge pipe between the stirring assembly and the drying assembly, and the sensor is electrically connected to the stepper motor. The sensor can be a flow sensor, a photoelectric sensor, or an ultrasonic sensor. The sensor can detect the falling dry powder in the discharge pipe. When the amount of dry powder falling is good, the stepper motor does not rotate, saving energy. When the amount of dry powder falling decreases significantly, it indicates that there is a blockage in the storage bin. The stepper motor starts, the horizontal rotating rod rotates, and drives the stirring rod to stir the blocked dry powder and clear the blockage.

[0009] Preferably, the feed pipe is equipped with an exhaust pipe, and a filter screen is provided at the connection between the exhaust pipe and the feed pipe. The exhaust pipe is equipped with a switch valve, allowing it to exhaust gases when needed. The filter screen filters the gas, preventing it from entering the exhaust pipe.

[0010] Working principle: When the discharge pipe is not blocked, the mixing component does not work, saving energy. At this time, the circular surface of each mixing rod is parallel to the central axis of the discharge pipe, reducing obstruction to the dry powder. When the carbide slag dry powder in the storage silo blocks the discharge pipe, it is crushed to avoid blockage. Under the mixing action of the mixing component, the clumps of dry powder can be broken up. When the dry powder passes through the air distribution ring, the air distribution ring introduces hot air into the discharge pipe to dry the dry powder. The broken and dried dry powder is discharged from the discharge pipe, avoiding the situation where the dry powder clumps in the discharge silo and blocks the discharge pipe, causing poor discharge. The air inlet pipe introduces high-pressure air to pneumatically convey the dry powder falling from the discharge pipe. After passing through the rotating pipe, the dry powder enters the guide pipe. The rotating pipe rotates, and the lifting plate lifts the dry powder in the rotating pipe and then drops it down, making the drying of dry powder more efficient and the pneumatic conveying of dry powder more efficient and smooth.

[0011] This utility model also includes other components that enable the normal operation of a carbide slag dry powder anti-clogging device, such as control components for stepper motor one, control components for stepper motor two, control components for controlling the intake of hot air through the air inlet pipe (e.g., a fan), control components for controlling the intake of air through the air inlet pipe (air pump), and control components for sensors, all of which are conventional technologies in the field. Furthermore, devices or components not limited in this utility model, such as switching valves and infrared sensors, all employ conventional technologies and equipment in the field.

[0012] The beneficial effects of this utility model are: it can crush the carbide slag dry powder in the storage silo when it blocks the discharge pipe, thus avoiding blockage. When the discharge pipe is not blocked, the stirring component does not work, saving energy. At the same time, it can dry the dry powder, preventing it from clumping again due to high humidity during pneumatic transportation, thus improving the efficiency of dry powder transportation and benefiting subsequent production. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of a carbide slag dry powder anti-clogging device in an embodiment of this utility model;

[0015] Figure 2 for Figure 1 Top view of the drying component;

[0016] Figure 3 for Figure 1 View from point AA.

[0017] In the diagram: 1. Storage bin; 2. Discharge pipe; 3. Air distribution ring; 4. Air inlet pipe; 5. Jet nozzle; 6. Air intake pipe; 7. Stepper motor one; 8. Horizontal rotating rod; 9. Stirring rod; 10. Rotating pipe; 11. Rack; 12. Gear; 13. Stepper motor two; 14. Ultrasonic flow sensor; 15. Lifting plate; 16. Guide pipe; 17. Filter screen; 18. Exhaust pipe. Detailed Implementation

[0018] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0019] Example

[0020] like Figure 1-3 As shown, this utility model provides a device for preventing blockage of carbide slag dry powder, including a storage bin 1, a discharge pipe 2 at the bottom of the storage bin 1, a stirring component at the connection between the discharge pipe 2 and the storage bin 1, and a drying component in the discharge pipe 2 below the stirring component.

[0021] The stirring assembly includes a horizontal rotating rod 8, one end of which extends out of the discharge pipe 2 and is connected to a stepper motor 7. The horizontal rotating rod 8 intersects the central axis of the discharge pipe 2. Multiple stirring rods 9 are fixed on the horizontal rotating rod 8, and the stirring rods 9 are perpendicular to the horizontal rotating rod 8. The ends of the multiple stirring rods 9 furthest from the horizontal rotating rod 8 are distributed around the same circumference (e.g., ...). Figure 1 On the circle shown by the dashed line, the diameter of the circumference is smaller than the inner diameter of the discharge pipe 2;

[0022] The drying assembly includes an air distribution ring 3, which is fixed to the inner wall of the discharge pipe 2. Air jet holes 5 are evenly distributed on the inner ring surface of the air distribution ring 3, and the air distribution ring 3 is connected to an air inlet pipe 4. Under the stirring action of the stirring assembly, clumps of dry powder can be broken up. When the dry powder passes through the air distribution ring 3, hot air is introduced into the discharge pipe 2 to dry the powder. The broken up and dried powder is discharged from the discharge pipe 2, preventing the dry powder from clumping in the discharge hopper and clogging the discharge pipe 2, thus avoiding poor discharge.

[0023] The lower end of the discharge pipe 2 is connected to a horizontal guide pipe 16, and an air inlet pipe 6 is provided on the discharge pipe 2 corresponding to the guide pipe 16. High-pressure air is introduced into the air inlet pipe 6 to pneumatically convey the dry powder falling from the discharge pipe 2.

[0024] A rotating tube 10 is provided between the guide tube 16 and the air inlet tube 6. Both ends of the rotating tube 10 are rotatably connected to the discharge tube 2 and the guide tube 16 respectively via bearings. Multiple lifting plates 15 are evenly fixed along the axis on the inner wall of the rotating tube 10. A ring of racks 11 is fixed on the outer wall of the rotating tube 10, and the racks 11 mesh with gears 12. The gears 12 are connected to a stepper motor 13. The stepper motor 13 drives the rotating tube 10 to rotate. The lifting plates 15 not only lift the dry powder inside the rotating tube 10 and then drop it, but also further disperse the dry powder, making the drying process more efficient and facilitating the pneumatic conveying of the dry powder.

[0025] A sensor is installed on the discharge pipe 2 between the stirring assembly and the drying assembly, and the sensor is electrically connected to the stepper motor 7. The sensor is an ultrasonic flow sensor 14, model Siemens Sitrans FUS series. The sensor is set to detect the falling dry powder in the discharge pipe 2. When the amount of dry powder falling is good, the stepper motor 7 does not rotate, saving energy. When the amount of dry powder falling decreases significantly, it indicates that there is a blockage in the storage bin 1. The stepper motor 7 starts, the horizontal rotating rod 8 rotates, and drives the stirring rod 9 to stir the blocked dry powder and clear the blockage.

[0026] The feed pipe 16 is equipped with an exhaust pipe 18, and a filter screen 17 is provided at the connection between the exhaust pipe 18 and the feed pipe 16. The exhaust pipe 18 is equipped with a switch valve, and the exhaust pipe 18 can play the role of exhausting when needed. The filter screen 17 filters the gas to prevent it from entering the exhaust pipe 18.

[0027] When the discharge pipe 2 is not blocked during operation, the stirring components do not work, saving energy. At this time, the circular surfaces of each stirring rod 9 are parallel to the central axis of the discharge pipe 2, reducing obstruction to the dry powder. When the carbide slag dry powder in the storage bin 1 blocks the discharge pipe 2, it is crushed to prevent the discharge pipe 2 from blocking. Under the stirring action of the stirring components, the clumps of dry powder can be broken up. When the dry powder passes through the air distribution ring 3, hot air is introduced into the air inlet pipe. The air distribution ring 3 introduces hot air into the discharge pipe 2 to dry the dry powder. The broken up and dried dry powder is discharged from the discharge pipe 2, avoiding the situation where the dry powder clumps in the discharge bin and blocks the discharge pipe 2, causing poor discharge. The air inlet pipe 6 introduces high-pressure air to pneumatically convey the dry powder falling from the discharge pipe 2. After passing through the rotating pipe 10, the dry powder enters the guide pipe 16. The rotating pipe 10 rotates, and the lifting plate 15 lifts the dry powder in the rotating pipe 10 and then drops it down, making the drying of the dry powder more efficient and the pneumatic conveying of the dry powder more efficient and smooth.

[0028] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for preventing blockage of dry carbide slag powder, comprising a storage silo, wherein a discharge pipe is provided at the bottom of the storage silo, characterized in that: A stirring assembly is provided at the connection between the discharge pipe and the storage silo, and a drying assembly is provided in the discharge pipe below the stirring assembly. The stirring assembly includes a horizontal rotating rod, one end of which extends out of the discharge pipe and is connected to a stepper motor. The horizontal rotating rod intersects the central axis of the discharge pipe. Multiple stirring rods are fixed on the horizontal rotating rod. The stirring rods are perpendicular to the horizontal rotating rod. The ends of the multiple stirring rods away from the horizontal rotating rod are distributed on the circumference of the same circle. The diameter of the circumference is smaller than the inner diameter of the discharge pipe. The drying assembly includes an air distribution ring, which is fixed to the inner wall of the discharge pipe. Air jet holes are evenly distributed on the inner ring surface of the air distribution ring, and the air distribution ring is connected to an air inlet pipe.

2. The anti-clogging device for dry carbide slag powder according to claim 1, characterized in that: The lower end of the discharge pipe is connected to a horizontal guide pipe, and an air inlet pipe is provided on the discharge pipe corresponding to the guide pipe.

3. The anti-clogging device for dry carbide slag powder according to claim 2, characterized in that: A rotating tube is provided between the guide tube and the air inlet tube. The two ends of the rotating tube are rotatably connected to the discharge tube and the guide tube respectively through bearings. Multiple lifting plates are evenly fixed along the axis on the inner wall of the rotating tube. A ring of racks is fixed on the outer wall of the rotating tube. The racks are meshed with gears. The gears are connected to a stepper motor.

4. The anti-clogging device for dry carbide slag powder according to claim 1, characterized in that: A sensor is installed on the discharge pipe between the stirring assembly and the drying assembly, and the sensor is electrically connected to the stepper motor.

5. The anti-clogging device for dry carbide slag powder according to claim 2, characterized in that: The feed pipe is equipped with an exhaust pipe, and a filter screen is provided at the connection between the exhaust pipe and the feed pipe.

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