Automatic suction device for PAM dosing

Abstract

The utility model discloses a PAM dosing automatic suction device which comprises a feeding bin arranged on the ground, a discharging bin arranged at the top of a dosing box, a feeding hose connected with the bottom of the feeding bin and the side wall of the discharging bin and a suction assembly arranged at the top of the discharging bin, and an exhaust pipe is arranged at the top of the side wall of the discharging bin. The top of the feeding bin is connected with a dry air tank through a pipeline, the discharging end of the bottom of the discharging bin is connected with a dosing box, and a powder separation structure is arranged in the discharging bin. The effects that the PAM powder feeding efficiency and the feeding work safety are improved, and the field operation environment is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dosing devices, in particular to a PAM dosing automatic suction device. Background Art

[0002] In the field of sewage treatment, PAM dosing devices are used to promote the flocculation and precipitation of suspended matter in sewage and improve the efficiency of sewage treatment. By accurately adding PAM agents, impurities in sewage can be quickly condensed into larger particles, which is convenient for subsequent separation and treatment. At room temperature, PAM is a white powder with strong water absorption. At present, the existing dosing device needs to manually add a certain amount of PAM agents to the dry powder silo according to the sludge disposal situation for subsequent stirring and mixing. On the one hand, since the dry powder silo is at the top of the dosing device, it is necessary to use a ladder to add the bagged agent. During the dosing process through the ladder, there is a risk of falling for workers. On the other hand, due to the hydrophilic nature of the PAM agent, the agent spilled on the ground during the dosing process will form a sticky and slippery colloidal liquid after absorbing water, which can easily cause people to slip and fall. Summary of the invention

[0003] The technical problem to be solved by the utility model is that manual pouring of materials is prone to spillage and there are potential safety hazards during the transportation process.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a PAM dosing automatic suction device, including a loading silo arranged on the ground, a unloading silo arranged on the top of a dosing box, a feeding hose connecting the bottom of the loading silo and the side wall of the unloading silo, and a suction assembly arranged on the top of the unloading silo, an exhaust pipe is arranged on the top of the side wall of the unloading silo, the top of the loading silo is connected to a dry air tank through a pipeline, the bottom discharge end of the unloading silo is connected to the dosing box, and a powder separation structure is arranged in the unloading silo.

[0005] Preferably, the suction assembly includes an electric motor fixedly arranged at the top of the unloading silo and a fan fixedly connected to the output end of the electric motor, a partition ring is provided in the unloading silo, the fan is located in the partition ring, and the exhaust pipe is located above the partition ring.

[0006] Preferably, the powder separation structure is a guide block fixedly mounted on the inner wall of the feed bin, the guide block is located above the connecting end between the feed bin and the feeding hose, and a gap for airflow to pass through is provided between the movable end of the guide block and the inner wall of the feed bin.

[0007] Preferably, the bottom of the guide block is an arc-shaped surface that bends downward from the fixed end toward the movable end, the top of the guide block is provided with an arc-shaped surface, the top of the fixed end of the guide block is located above the top of the movable end, and a filter is vertically arranged at the bottom of the guide block.

[0008] Preferably, a solenoid valve for unloading is provided at the bottom of the unloading silo.

[0009] Preferably, a stirring assembly is arranged at the top of the feeding silo, and the stirring assembly includes a stirring motor fixedly arranged at the top of the feeding silo, a stirring shaft is coaxially fixedly connected to the output shaft of the stirring motor, and stirring rods are evenly arranged on the stirring shaft.

[0010] Preferably, the movable end of the stirring rod is arranged to be inclined downward.

[0011] The utility model provides an automatic suction device for PAM dosing. A worker pours weighed PAM powder into a loading silo, and sucks the PAM powder into a unloading silo through a suction component and a dry air tank. The PAM powder transported by the dry air is settled into the unloading silo by a powder separation structure in the unloading silo, and finally the PAM powder is unloaded into a dosing box through the unloading silo, thereby effectively reducing the risk of workers falling and slipping, improving the on-site working environment, and improving the efficiency of the loading work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the top silo in an embodiment of the utility model.

[0015] In the figure: 1. feeding silo; 2. unloading silo; 3. feeding hose; 4. suction assembly; 41. electric motor; 42. fan; 43. heat dissipation net; 5. exhaust pipe; 6. dosing box; 7. stirring assembly; 8. guide block. DETAILED DESCRIPTION

[0016] like Figure 1 and Figure 2 As shown, the utility model proposes an automatic suction device for PAM dosing, comprising a loading silo 1 arranged on the ground, a unloading silo 2 arranged on the top of a dosing box 6, a feeding hose 3 connecting the bottom of the loading silo 1 and the side wall of the unloading silo 2, and a suction assembly 4 arranged on the top of the unloading silo 2, an exhaust pipe 5 is arranged on the top of the side wall of the unloading silo 2, the top of the loading silo 1 is connected to a dry air tank through a pipeline, the bottom discharge end of the unloading silo 2 is connected to the dosing box 6, and a powder separation structure is arranged in the unloading silo 2.

[0017] A loading plate is provided on the top of the loading silo 1. After opening the loading plate, the weighed PAM powder is poured into the loading silo 1. Then the loading plate is closed. A sealing ring is provided between the loading plate and the feeding port on the top of the loading silo 1 to prevent moist air from entering the loading silo 1. The valve on the connecting pipe between the dry air tank and the loading silo 1 is opened, and the suction component 4 is opened. The suction component 4 inhales dry air from the dry air tank through the loading silo 1. When the air flows through the loading silo 1 and the feeding hose 3, the PAM powder in the loading silo 1 is sucked into the unloading silo 2 through the feeding hose 3, and the unloading silo 2 is used. The powder separation structure in the silo 2 settles the PAM powder in the dry air to the inner bottom of the unloading silo 2. After the PAM powder in the upper silo 1 is transported, the dry air tank and the suction component are closed, and the solenoid valve at the bottom of the unloading silo 2 is opened to send the PAM powder in the unloading silo 2 into the dosing box 6; the exhaust pipe 5 includes an inclined section and a vertical section, the vertical section serves as a movable end, and a filter is arranged in the vertical section to intercept the PAM powder. After the PAM powder in the upper silo 1 is completely transported, the suction component 4 is reversed for backblowing, and the PAM powder remaining in the unloading silo 2 and the exhaust pipe 5 is sent to the dosing box 6.

[0018] like Figure 1 and Figure 2 As shown, in order to realize the directional flow of dry air in the unloading silo 2. The suction assembly 4 includes an electric motor 41 fixedly arranged at the top of the unloading silo 2 and a fan 42 fixedly connected to the output end of the electric motor 41. A partition ring is arranged in the unloading silo 2, and the fan 42 is located in the partition ring. The exhaust pipe 5 is located above the partition ring. The setting of the partition ring allows the dry air in the unloading silo 2 to flow in a directional manner, thereby improving the powder separation efficiency while maintaining the stability of the fan 42. A heat dissipation net 43 is installed on the top of the unloading silo 2 for heat dissipation of the electric motor 41.

[0019] like Figure 2 As shown. The powder separation structure is a guide block 8 fixedly arranged on the inner wall of the feeding bin 2. The guide block 8 is located above the connection end between the feeding bin 2 and the feeding hose 3, and a gap for airflow is provided between the movable end of the guide block 8 and the inner wall of the feeding bin 2. After the air carrying the powder enters the feeding bin 2, most of the PAM powder will directly fall into the feeding bin 2, and the remaining small part of the dust will have difficulty flowing upward along the gap between the guide block 8 and the feeding bin 2, and will also fall into the feeding bin 2, thereby realizing the separation of the PAM powder in the dry air.

[0020] like Figure 2As shown. The bottom of the guide block 8 is an arc-shaped surface that bends downward from the fixed end toward the movable end. The top of the guide block 8 is provided with an arc-shaped surface. The top of the fixed end of the guide block 8 is located above the top of the movable end. A filter screen is vertically provided at the bottom of the guide block 8. Through the arrangement of the top and bottom planes of the guide block 8, after the dry air enters the unloading bin 2, it flows obliquely downward under the action of the bottom surface of the guide block 8, so that the PAM powder settles rapidly. The powder blown back from the exhaust pipe 5 can smoothly enter the inner bottom of the unloading bin 2 through the guide of the top surface of the guide block 8.

[0021] As a preferred embodiment of the utility model, in order to facilitate the staff to remotely discharge the material from the material bin 2, a solenoid valve for material discharge is arranged at the bottom of the material bin 2.

[0022] like Figure 1 As shown, in order to improve the feeding efficiency of the PAM powder in the feeding silo 1, a stirring assembly 7 is arranged on the top of the feeding silo 1, and the stirring assembly 7 includes a stirring motor fixedly arranged on the top of the feeding silo 1, and a stirring shaft is coaxially fixedly connected to the output shaft of the stirring motor, and stirring rods are evenly arranged on the stirring shaft. The stirring shaft is driven to rotate by the stirring motor, and the PAM powder is stirred by the stirring rod to accelerate the conveying efficiency of the PAM powder.

[0023] like Figure 1 As shown, in order to ensure the effective area of ​​the stirring rod and reduce the resistance torque of the stirring rod when rotating, the movable end of the stirring rod is arranged tilted downward.

Claims

1. A PAM dosing automatic suction device, characterized in that: The invention comprises a loading bin (1) arranged on the ground, a lowering bin (2) arranged on the top of a dosing box (6), a feeding hose (3) connecting the bottom of the loading bin (1) and the side wall of the lowering bin (2), and a suction assembly (4) arranged on the top of the lowering bin (2); an exhaust pipe (5) is arranged on the top of the side wall of the lowering bin (2); the top of the loading bin (1) is connected to a dry air tank through a pipeline; the bottom discharge end of the lowering bin (2) is connected to the dosing box (6); and a powder separation structure is arranged in the lowering bin (2).

2. A PAM dosing automatic suction device as claimed in claim 1, characterized in that: The suction assembly (4) comprises an electric motor (41) fixedly arranged at the top of the unloading bin (2) and a fan (42) fixedly connected to the output end of the electric motor (41); a partition ring is arranged in the unloading bin (2); the fan (42) is located in the partition ring; and the exhaust pipe (5) is located above the partition ring.

3. A PAM dosing automatic suction device as claimed in claim 1 or 2, characterized in that: The powder separation structure is a guide block (8) fixedly arranged on the inner wall of the unloading bin (2), the guide block (8) is located above the connection end between the unloading bin (2) and the feeding hose (3), and a gap for air flow to pass through is arranged between the movable end of the guide block (8) and the inner wall of the unloading bin (2).

4. A PAM dosing automatic suction device as claimed in claim 3, characterized in that: The bottom of the guide block (8) is an arc-shaped surface that bends downward from the fixed end toward the movable end, the top of the guide block (8) is provided with an arc-shaped surface, the top of the fixed end of the guide block (8) is located above the top of the movable end, and a filter screen is vertically provided at the bottom of the guide block (8).

5. A PAM dosing automatic suction device as claimed in claim 1, characterized in that: A solenoid valve for unloading is provided at the bottom of the unloading bin (2).

6. A PAM dosing automatic suction device as claimed in claim 1, characterized in that: A stirring assembly (7) is arranged at the top of the feeding silo (1), and the stirring assembly (7) comprises a stirring motor fixedly arranged at the top of the feeding silo (1), a stirring shaft is coaxially fixedly connected to the output shaft of the stirring motor, and stirring rods are evenly arranged on the stirring shaft.

7. A PAM dosing automatic suction device as claimed in claim 6, characterized in that: The movable end of the stirring rod is arranged to be inclined downward.

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