Pneumatic fluidizing device for powder bin

Abstract

The utility model discloses a pneumatic fluidizing device for a powder bin, and relates to the technical field of powder fluidizing equipment, in particular to the pneumatic fluidizing device for the powder bin, which comprises a bin pump, a discharging pipe is fixedly connected to one end of the bottom of the bin pump, and a double-set conveying pipe assembly is fixedly mounted at one end of the discharging pipe through a bolt A; and an air inlet pipe is fixedly mounted at the other end of the bottom of the bin pump. When material particles are conveyed in the double-sleeve conveying pipe assembly, the turbulent flow state of the material particles is damaged along with increasing of the distance of a sleeve, the material particles are accumulated on the bottom face of a sleeve pipeline, a main conveying pipeline tends to block the pipeline due to material accumulation, resistance is increased, the flow of air entering a lining pipe is increased, and after air enters a lining, the material particles enter the lining pipe. Due to the fact that the pressure difference between the two airflow jet flow points is larger than the pressure of the material section between the two conveying points, air in the lining pipe flows into the sleeve again, the air flowing into the sleeve again forms turbulent flow in the area, the material section is continuously divided, moved and blown away, and the material is continuously conveyed forwards.

Description

Technical Field

[0001] The utility model relates to the technical field of powder fluidization equipment, in particular to a powder bin pneumatic fluidization device. Background Art

[0002] Pneumatic fluidizing equipment is often used in zinc-lead-zinc dust treatment and renovation projects. Pneumatic fluidizing equipment is a device that uses gas fluidization to process materials. In pneumatic fluidizing equipment, gas is introduced into the material to make it fluidized, thereby achieving mixed transportation of the material.

[0003] Pipe blockage is another difficult problem to solve in pneumatic conveying. Once pipe blockage occurs, it will affect the normal operation of the system, increase a lot of dredging and maintenance work, and even affect the safe operation of the system. Utility Model Content

[0004] The purpose of the utility model is to provide a pneumatic fluidizing device for a powder silo. By arranging a silo pump, a double set of conveying pipe components, an ash silo and an air storage tank, it solves the problem that pipe blockage is another difficult problem to solve in pneumatic conveying. Once pipe blockage occurs, it will affect the normal operation of the system, increase a lot of dredging and maintenance work, and even affect the safe operation of the system.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a powder silo pneumatic fluidization device includes a silo pump, one end of the bottom of the silo pump is fixedly connected to a discharge pipe, one end of the discharge pipe is fixedly installed with a double-set conveying pipe assembly through an A bolt, and the other end of the bottom of the silo pump is fixedly installed with an air inlet pipe;

[0006] The double-sleeved conveying pipe assembly includes a connecting plate connected to a discharge pipe via an A bolt, a sleeve is fixedly connected to the interior of the connecting plate, an inner liner is fixedly connected to the inner wall of the sleeve, and a plurality of openings are provided on the surface of the inner liner.

[0007] Furthermore, the other end of the sleeve is fixedly connected to an ash bin via a connecting plate, a sleeve is sleeved on the surface of the ash bin, a support foot A is fixedly connected to the lower surface of the sleeve, and an A solenoid valve is provided at the bottom of the ash bin.

[0008] Furthermore, a B solenoid valve is provided on the surface of the discharge pipe and the air inlet pipe, a gas storage tank is fixedly installed at one end of the air inlet pipe, an air injection pipe is fixedly installed at the center of the upper surface of the gas storage tank, and a pressure gauge is provided on one side of the upper surface of the gas storage tank.

[0009] Furthermore, a feed pipe is fixedly installed at the center of the upper surface of the silo pump, a C solenoid valve is provided on the back of the feed pipe, an air outlet pipe is connected to one side of the upper surface of the silo pump, and a D solenoid valve is provided on the surface of the air outlet pipe.

[0010] Furthermore, a dust collector buffer ash bin is fixedly installed on the top of the feed pipe, a cover plate is fixedly installed on the top of the dust collector buffer ash bin by bolts, and a feed cover is clamped on the upper surface of the cover plate.

[0011] Furthermore, a B support foot is fixedly connected to the bottom of the silo pump surface.

[0012] The utility model provides a pneumatic fluidizing device for a powder bin, which has the following beneficial effects:

[0013] When in use, personnel can open the D solenoid valve on the outlet pipe and then open the C solenoid valve on the feed pipe, so that the particles in the dust collector buffer ash bin enter the silo pump. After the amount of particles reaches the requirement, close the C solenoid valve, and then open the B solenoid valve on the outlet pipe and the inlet pipe, so that the compressed gas in the gas storage tank drives the particles falling into the outlet pipe through the inlet pipe to enter the double-sleeved conveying pipe assembly, and finally transport them to the ash bin. When the particles are transported in the double-sleeved conveying pipe assembly, as the distance between the sleeves increases, the turbulent flow state of the particles is destroyed and accumulates on the bottom surface of the sleeve pipe. The main conveying pipe tends to be blocked due to the accumulation of materials, and the resistance increases, so that the air flow entering the liner pipe increases. After the air enters the liner, the pressure difference between the two airflow jet points is greater than the material section pressure between the two conveying points, and the air in the liner pipe flows back into the sleeve. The air that flows back into the sleeve forms turbulence in this area, so that the material sections are continuously divided, moved, and blown away, and the materials are continuously transported forward, thereby greatly reducing the blockage of the pipe and reducing the workload of personnel maintaining the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structural disassembly of the casing of the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the structure of the sleeve of the utility model.

[0019] Indicated in the figure:

[0020] 1. Silo pump; 2. Discharge pipe; 3. Air inlet pipe; 4. Connecting plate; 5. Casing; 6. Lining pipe; 7. Ash bin; 8. Air storage tank; 9. Air injection pipe; 10. Pressure gauge; 11. Feed pipe; 12. Air outlet pipe; 13. Dust collector buffer ash bin; 14. Cover plate; 15. Feed cover. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a powder silo pneumatic fluidization device, including a silo pump 1, one end of the bottom of the silo pump 1 is fixedly connected to a discharge pipe 2, one end of the discharge pipe 2 is fixedly installed with a double-set conveying pipe assembly through an A bolt, and the other end of the bottom of the silo pump 1 is fixedly installed with an air inlet pipe 3;

[0024] The double-sleeved conveying pipe assembly includes a connecting plate 4 connected to the discharge pipe 2 by A bolts, a sleeve 5 is fixedly connected inside the connecting plate 4, an inner liner 6 is fixedly connected to the inner wall of the sleeve 5, and a plurality of openings are provided on the surface of the inner liner 6. The conveying air passes through the sleeve 5 and the inner liner 6 at the same time. The specially designed openings on the inner liner 6 form turbulence on the sleeve 5. Under the turbulent state, fly ash accumulates and is divided into material sections. From another perspective, the operation of the double-sleeved conveying pipe assembly is actually a repeated cycle of blocking, unblocking, blocking and unblocking. The system conveys in a state that seems to be blocked but is not blocked. It is a dynamic automatic blowing and blocking process. Unlike conventional positive pressure conveying systems, when blockage occurs, the normal conveying program must be stopped, and special blowing and blocking must be performed, or even the pipe must be unloaded for unblocking, resulting in time-consuming, labor-intensive and material-intensive losses. The blockage problem is fundamentally solved.

[0025] The other end of the sleeve 5 is fixedly connected to the ash bin 7 through the connecting plate 4. The surface of the ash bin 7 is sleeved with a sleeve ring, and the lower surface of the sleeve ring is fixedly connected to the A support foot. The bottom of the ash bin 7 is provided with an A solenoid valve.

[0026] The surfaces of the discharge pipe 2 and the air inlet pipe 3 are both provided with B solenoid valves, an air storage tank 8 is fixedly installed at one end of the air inlet pipe 3, an air injection pipe 9 is fixedly installed at the center of the upper surface of the air storage tank 8, and a pressure gauge 10 is provided on one side of the upper surface of the air storage tank 8.

[0027] A feed pipe 11 is fixedly installed at the center of the upper surface of the silo pump 1, and a C solenoid valve is arranged on the back of the feed pipe 11. An air outlet pipe 12 is connected to one side of the upper surface of the silo pump 1, and a D solenoid valve is arranged on the surface of the air outlet pipe 12. A dust collector buffer ash bin 13 is fixedly installed on the top of the feed pipe 11, and a cover plate 14 is fixedly installed on the top of the dust collector buffer ash bin 13 by bolts, and a feed cover 15 is clamped on the upper surface of the cover plate 14. First, open the D solenoid valve and the C solenoid valve, and close other valves. The ash in the dust collector buffer ash bin 13 enters the silo pump 1. The feed amount is controlled by both time and material level. When the feed time is up, close the C solenoid valve. Valve, enter the ash discharge stage, close the D solenoid valve and the C solenoid valve, then open the B solenoid valve for conveying gas, open the B solenoid valve for discharging material, so that the powder entering the silo pump 1 is in a state of fluidization and conveying, and start to convey the ash bin 7. When the pressure in the silo pump 1 and the casing 5 drops to the set value, close the B solenoid valve for conveying gas. The system automatically determines that the conveying process is completed and enters the purge stage. The B solenoid valve for conveying gas and the B solenoid valve for discharging material are open. This stage is mainly controlled by time. When the set time is reached, close the B solenoid valve for conveying gas and the B solenoid valve for discharging material and enter the feeding stage to start the next cycle.

[0028] A support foot B is fixedly connected to the bottom of the surface of the silo pump 1.

[0029] Specifically, when the pneumatic fluidizing device of the silo is working / in use: when in use, the personnel can open the D electromagnetic valve on the outlet pipe 12 and then open the C electromagnetic valve on the feed pipe 11, so that the particles in the dust collector buffer ash bin 13 enter the silo pump 1. After the amount of particles reaches the requirement, the C electromagnetic valve is closed, and then the B electromagnetic valves on the outlet pipe 2 and the inlet pipe 3 are opened, so that the compressed gas in the gas storage tank 8 drives the particles falling into the outlet pipe 2 through the inlet pipe 3 into the double-sleeved conveying pipe assembly, and finally transported to the ash bin 7. When the particles are transported in the double-sleeved conveying pipe assembly, as the distance between the sleeve 5 increases, the particles are transported to the silo 7. As the material accumulates, the turbulent flow state of the particles is destroyed and accumulates on the bottom surface of the casing 5. The main conveying pipeline tends to be blocked due to the accumulation of materials, and the resistance increases, which increases the air flow entering the inner liner 6. After the air enters the inner liner 6, the pressure difference between the two air flow jet points is greater than the material section pressure between the two conveying points. The air in the inner liner 6 flows back into the casing 5, and the air that flows back into the casing 5 forms turbulence in this area. In this way, the material sections are continuously divided, moved, and blown away, and the materials are continuously conveyed forward, thereby greatly reducing the blockage of the pipe and reducing the workload of personnel maintaining the equipment.

[0030] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder silo pneumatic fluidizing device, comprising a silo pump (1), characterized in that: One end of the bottom of the silo pump (1) is fixedly connected to a discharge pipe (2), one end of the discharge pipe (2) is fixedly mounted with a double-set delivery pipe assembly via an A bolt, and the other end of the bottom of the silo pump (1) is fixedly mounted with an air intake pipe (3); The double-sleeved conveying pipe assembly comprises a connecting plate (4) connected to a discharge pipe (2) via an A bolt, a sleeve (5) is fixedly connected to the interior of the connecting plate (4), an inner lining pipe (6) is fixedly connected to the inner wall of the sleeve (5), and a plurality of openings are provided on the surface of the inner lining pipe (6).

2. The powder silo pneumatic fluidization device according to claim 1 is characterized in that: The other end of the sleeve (5) is fixedly connected to an ash bin (7) via a connecting plate (4); a sleeve is sleeved on the surface of the ash bin (7); a support foot A is fixedly connected to the lower surface of the sleeve; and an electromagnetic valve A is provided at the bottom of the ash bin (7).

3. The powder silo pneumatic fluidization device according to claim 1 is characterized in that: The surfaces of the discharge pipe (2) and the air inlet pipe (3) are both provided with a B solenoid valve, one end of the air inlet pipe (3) is fixedly mounted with an air storage tank (8), the center of the upper surface of the air storage tank (8) is fixedly mounted with an air injection pipe (9), and one side of the upper surface of the air storage tank (8) is provided with a pressure gauge (10).

4. The powder silo pneumatic fluidization device according to claim 1, characterized in that: A feed pipe (11) is fixedly installed at the center of the upper surface of the silo pump (1), and a C electromagnetic valve is provided on the back of the feed pipe (11). An air outlet pipe (12) is connected to one side of the upper surface of the silo pump (1), and a D electromagnetic valve is provided on the surface of the air outlet pipe (12).

5. The powder silo pneumatic fluidization device according to claim 4, characterized in that: A dust collector buffer ash bin (13) is fixedly mounted on the top of the feed pipe (11), a cover plate (14) is fixedly mounted on the top of the dust collector buffer ash bin (13) by means of bolts, and a feed cover (15) is clamped on the upper surface of the cover plate (14).

6. The powder silo pneumatic fluidization device according to claim 1, characterized in that: A support foot B is fixedly connected to the bottom of the surface of the silo pump (1).

Images