Intermittent adjustable concentrated phase static pressure type pneumatic conveying device

Abstract

The utility model relates to the technical field of concentrated phase pneumatic conveying, and discloses an intermittent adjustable concentrated phase static pressure type pneumatic conveying device which comprises a bin pump and a discharging port fixedly connected to the bottom end of the bin pump, the edge of the top end of the bin pump is fixedly connected with a feeding port, and the top end of the feeding port is fixedly connected with a pneumatic feeding valve. According to the intermittent adjustable concentrated phase static pressure type pneumatic conveying device, through the arrangement of the wall scraping assembly, when a bin pump needs to be cleaned, a servo motor is started, a main rotating wheel rotates, a belt is driven to rotate, an auxiliary rotating wheel also rotates along with the servo motor, materials on the pump wall are scraped away through scraping strips on a wall scraping frame, and therefore the bin pump is cleaned; the problems that due to the fact that materials (especially dust or granular materials) are conveyed on the inner wall of the bin pump for a long time, the materials are accumulated or agglomerated, conveying efficiency is affected, regular shutdown cleaning is needed are avoided, the frequency of shutdown cleaning is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of dense phase pneumatic conveying technology, and in particular to an intermittently adjustable dense phase static pressure pneumatic conveying device. Background Technology

[0002] Dense-phase static pressure pneumatic conveying is a commonly used material handling technology, especially in industrial applications, for transporting granular materials (such as powders, granules, and particulate materials) through pipelines to designated locations. Its main working principle utilizes airflow as a power source to move materials from the conveying source (such as a silo or inlet) through pipelines to the destination. In a static pressure system, the airflow, the specific gravity of the material, and the pipeline design work together to propel the material through a pressure differential.

[0003] In actual use, existing intermittent adjustable dense phase static pressure pneumatic conveying devices will cause material to accumulate or clump on the inner wall of the silo pump due to long-term material conveying (especially dust or granular materials). This requires periodic shutdown for cleaning, which is inconvenient for reducing the frequency of shutdown for cleaning and extending the service life of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide an intermittently adjustable dense-phase static pressure pneumatic conveying device, which solves the problem mentioned in the background art of not being able to reduce the frequency of downtime for cleaning and extend the service life of the equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an intermittently adjustable dense-phase static pressure pneumatic conveying device, comprising a silo pump and a discharge port fixedly connected to the bottom of the silo pump, a feed port fixedly connected to the edge of the top of the silo pump, a pneumatic feed valve fixedly connected to the top of the feed port, a material connecting pipe fixedly connected to the top of the pneumatic feed valve, an anti-clogging component fixedly connected to one side of the material connecting pipe, and a wall scraping component fixedly connected to the top surface of the silo pump.

[0008] The anti-blocking component includes a vibrating motor fixedly connected to one side of the material connecting pipe. The output end of the vibrating motor is splinedly connected to a transmission rod, and one end of the transmission rod is fixedly connected to an eccentric block.

[0009] The scraping assembly includes a servo motor fixedly connected to the top surface of the silo pump. The output end of the servo motor is splinedly connected to a transmission rod. One end of the transmission rod is fixedly connected to a main rotating wheel. A belt is sleeved on the surface of the main rotating wheel. An auxiliary rotating wheel is rotatably connected inside the belt. A scraping frame is fixedly connected to the bottom end of the auxiliary rotating wheel. Scraping strips are fixedly connected to both sides of the scraping frame.

[0010] As a further embodiment of this utility model, a level gauge is fixedly installed on the top of the silo pump, and a pressure gauge is fixedly installed on one side of the level gauge, which facilitates monitoring the pressure inside the silo pump.

[0011] As a further embodiment of this utility model, an air inlet pipe is fixedly connected to the top of the pump, one end of the air inlet pipe is connected to a gas delivery pipe, and the bottom end of the gas delivery pipe is connected to a gas distribution pipe. Solenoid valves are fixedly installed on the surfaces of the air inlet pipe, the gas delivery pipe, and the gas distribution pipe, and the solenoid valves facilitate the opening and closing of gas delivery.

[0012] As a further embodiment of this utility model, one end of the gas conveying pipe is fixedly connected to one side of the discharge port, and the gas distribution pipe is fixedly connected to the bottom end of the discharge port, so that the discharge port facilitates material conveying.

[0013] As a further embodiment of this utility model, a PLC controller is electrically connected to one side of each solenoid valve via a power line. The PLC controller is fixedly connected to one side of the surface of the silo pump, and the PLC controller facilitates the control of the operation of the dense phase static pressure pneumatic conveying device.

[0014] As a further embodiment of this utility model, a discharge pipe is fixedly connected to the other side of the discharge port, and a flange is fixedly connected to one end of the discharge pipe, which facilitates connection with an external conveying pipe.

[0015] As a further embodiment of this utility model, three stabilizing blocks are fixedly connected to the surface of the silo pump, and a support leg is welded to the bottom of the stabilizing block. The support leg facilitates the support of the intermittently adjustable dense phase static pressure pneumatic conveying device.

[0016] (III) Beneficial Effects

[0017] This utility model provides an intermittently adjustable dense-phase static pressure pneumatic conveying device, which has the following features:

[0018] Beneficial effects:

[0019] 1. This intermittently adjustable dense-phase static pressure pneumatic conveying device, through the setting of the wall scraping assembly, when the silo pump needs to be cleaned, the servo motor is started, the main rotating wheel rotates, driving the belt to rotate, so that the auxiliary rotating wheel also rotates, allowing the scraper blades on the wall scraping frame to scrape off the material on the pump wall, thereby cleaning the silo pump. This avoids the accumulation or agglomeration of material (especially dust or granular material) on the inner wall of the silo pump due to long-term material conveying, which would affect the conveying efficiency and require periodic shutdown for cleaning. This helps to reduce the frequency of shutdown for cleaning and extend the service life of the equipment.

[0020] 2. This intermittently adjustable dense-phase static pressure pneumatic conveying device, through the setting of anti-clogging components, connects the external material silo to the silo pump via a material connection pipe during use. The PLC controller controls the pneumatic feed valve to open according to the threshold set by the level gauge, and simultaneously starts the vibration motor. The centrifugal force generated by the high-speed rotation of the shaft and eccentric block generates excitation force, producing vibration, thereby achieving the effect of rapid material conveying. This avoids material accumulation at the discharge point of the external material silo, reduces the material falling speed, and helps to improve the efficiency of material conveying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the anti-clogging component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the gas pipeline structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the wall scraping component of this utility model.

[0026] In the diagram: 1. Silo pump; 2. Discharge port; 3. Inlet port; 4. Pneumatic feed valve; 5. Material connection pipe; 6. Anti-clogging component; 601. Vibration motor; 602. Eccentric block; 7. Scraper assembly; 701. Servo motor; 702. Main rotating wheel; 703. Belt; 704. Auxiliary rotating wheel; 705. Scraper frame; 706. Scraper blade; 8. Level gauge; 9. Pressure gauge; 10. Air inlet pipe; 11. Air delivery pipe; 12. Air distribution pipe; 13. Solenoid valve; 14. PLC controller; 15. Discharge pipe; 16. Support leg. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 5This utility model provides a technical solution: an intermittently adjustable dense-phase static pressure pneumatic conveying device, including a silo pump 1 and a discharge port 2 fixedly connected to the bottom of the silo pump 1. A feed port 3 is fixedly connected to the edge of the top of the silo pump 1. A pneumatic feed valve 4 is fixedly connected to the top of the feed port 3. A material connecting pipe 5 is fixedly connected to the top of the pneumatic feed valve 4. An anti-blocking component 6 is fixedly connected to one side of the material connecting pipe 5. A wall scraping component 7 is fixedly connected to the top surface of the silo pump 1.

[0029] The anti-blocking component 6 includes a vibrating motor 601 fixedly connected to one side of the material connecting pipe 5. The output end of the vibrating motor 601 is splinedly connected to a transmission rod, and one end of the transmission rod is fixedly connected to an eccentric block 602. With the setting of the anti-blocking component 6, in use, the external material bin is connected to the bin pump 1 through the material connecting pipe 5. The PLC controller 14 controls the pneumatic feed valve 4 to open according to the threshold set by the level gauge 8, and at the same time starts the vibrating motor 601. The centrifugal force generated by the high-speed rotation of the shaft and the eccentric block 602 is used to generate excitation force and produce vibration, thereby achieving the effect of rapid material conveying, avoiding material accumulation at the outlet of the external material bin, reducing the material falling speed, and helping to improve the efficiency of material conveying.

[0030] The wall scraping assembly 7 includes a servo motor 701 fixedly connected to the top surface of the silo pump 1. A transmission rod is splined to the output end of the servo motor 701. A main rotating wheel 702 is fixedly connected to one end of the transmission rod. A belt 703 is sleeved on the surface of the main rotating wheel 702. An auxiliary rotating wheel 704 is rotatably connected inside the belt 703. A wall scraping frame 705 is fixedly connected to the bottom end of the auxiliary rotating wheel 704. Scraper strips 706 are fixedly connected to both sides of the wall scraping frame 705. Through the arrangement of the wall scraping assembly 7, when it is necessary to scrape the silo pump 1... During cleaning, the servo motor 701 is started, the main rotating wheel 702 rotates, driving the belt 703 to rotate, which in turn causes the auxiliary rotating wheel 704 to rotate as well. This allows the scraper blades 706 on the scraper frame 705 to scrape off the material on the pump wall, thereby cleaning the silo pump 1. This prevents the accumulation or agglomeration of material (especially dust or granular material) on the inner wall of the silo pump 1 due to long-term material transportation, which would affect the conveying efficiency and require regular shutdown for cleaning. This helps to reduce the frequency of shutdown for cleaning and extend the service life of the equipment.

[0031] A level gauge 8 is fixedly installed on the top of the silo pump 1, and a pressure gauge 9 is fixedly installed on one side of the level gauge 8. The level gauge 8 is set to monitor the material and set a monitoring threshold, so that the PLC controller 14 can adjust the time interval of starting the pneumatic conveying according to the amount of material required.

[0032] The top of the chamber pump 1 is fixedly connected to an air inlet pipe 10, one end of the air inlet pipe 10 is connected to an air delivery pipe 11, and the bottom end of the air delivery pipe 11 is connected to an air distribution pipe 12. Solenoid valves 13 are fixedly installed on the surfaces of the air inlet pipe 10, the air delivery pipe 11 and the air distribution pipe 12. The solenoid valves 13 facilitate the opening and closing of the gas delivery.

[0033] One end of the gas supply pipe 11 is fixedly connected to one side of the outlet 2, and the gas distribution pipe 12 is fixedly connected to the bottom of the outlet 2. The outlet 2 serves as a material conveying device.

[0034] One side of each solenoid valve 13 is electrically connected to a PLC controller 14 via a power cord. The PLC controller 14 is fixedly connected to one side of the surface of the silo pump 1. The PLC controller 14 controls the operation of the dense phase static pressure pneumatic conveying device.

[0035] A discharge pipe 15 is fixedly connected to the other side of the discharge port 2. A flange is fixedly connected to one end of the discharge pipe 15. The discharge pipe 15 facilitates connection with an external conveying pipe.

[0036] Three stabilizing blocks are fixedly connected to the surface of the silo pump 1. Support legs 16 are welded to the bottom of the stabilizing blocks. The support legs 16 support the intermittently adjustable dense phase static pressure pneumatic conveying device.

[0037] In this invention, the working steps of the device are as follows:

[0038] First step: When in use, one end of the air supply pipe 11 is connected to an external air source, and the external material silo is connected to the silo pump 1 through the material connection pipe 5. The discharge pipe 15 is connected to the external material supply pipe. The PLC controller 14 controls the pneumatic feed valve 4 to open according to the threshold set by the level gauge 8, and at the same time starts the vibration motor 601. The centrifugal force generated by the high-speed rotation of the shaft and the eccentric block 602 is used to obtain the excitation force and generate vibration.

[0039] The second step: When the material enters the silo pump 1, the solenoid valve 13 on the air inlet pipe 10, air delivery pipe 11 and air distribution pipe 12 opens, and the airflow pushes the material forward to perform intermittent pneumatic conveying of the material.

[0040] Third step: When it is necessary to clean the silo pump 1, start the servo motor 701, the main rotating wheel 702 rotates, driving the belt 703 to rotate, so that the auxiliary rotating wheel 704 also rotates, allowing the scraper 706 on the scraper frame 705 to scrape off the material on the pump wall.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0042] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intermittently adjustable dense-phase static pressure pneumatic conveying device, comprising a silo pump (1) and a discharge port (2) fixedly connected to the bottom end of the silo pump (1), characterized in that: The top edge of the silo pump (1) is fixedly connected to a feed inlet (3), the top of the feed inlet (3) is fixedly connected to a pneumatic feed valve (4), the top of the pneumatic feed valve (4) is fixedly connected to a material connecting pipe (5), one side of the material connecting pipe (5) is fixedly connected to an anti-clogging component (6), and the top surface of the silo pump (1) is fixedly connected to a wall scraping component (7). The anti-blocking component (6) includes a vibration motor (601) fixedly connected to one side of the material connecting pipe (5). The output end of the vibration motor (601) is splinedly connected to a transmission rod, and one end of the transmission rod is fixedly connected to an eccentric block (602). The scraping assembly (7) includes a servo motor (701) fixedly connected to the top surface of the silo pump (1). The output end of the servo motor (701) is splinedly connected to a transmission rod. One end of the transmission rod is fixedly connected to a main rotating wheel (702). A belt (703) is sleeved on the surface of the main rotating wheel (702). An auxiliary rotating wheel (704) is rotatably connected inside the belt (703). A scraping frame (705) is fixedly connected to the bottom end of the auxiliary rotating wheel (704). Scraping strips (706) are fixedly connected to both sides of the scraping frame (705).

2. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 1, characterized in that: A level gauge (8) is fixedly installed on the top of the silo pump (1), and a pressure gauge (9) is fixedly installed on one side of the level gauge (8).

3. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 1, characterized in that: The top of the chamber pump (1) is fixedly connected to an air inlet pipe (10), one end of the air inlet pipe (10) is connected to an air delivery pipe (11), the bottom end of the air delivery pipe (11) is connected to an air distribution pipe (12), and a solenoid valve (13) is fixedly installed on the surface of the air inlet pipe (10), the air delivery pipe (11) and the air distribution pipe (12).

4. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 3, characterized in that: One end of the gas supply pipe (11) is fixedly connected to one side of the outlet (2), and the gas distribution pipe (12) is fixedly connected to the bottom end of the outlet (2).

5. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 3, characterized in that: Each of the solenoid valves (13) is electrically connected to a PLC controller (14) via a power line on one side, and the PLC controller (14) is fixedly connected to one side of the surface of the silo pump (1).

6. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 1, characterized in that: A discharge pipe (15) is fixedly connected to the other side of the discharge port (2), and a flange is fixedly connected to one end of the discharge pipe (15).

7. The intermittently adjustable dense-phase static pressure pneumatic conveying device according to claim 1, characterized in that: The surface of the silo pump (1) is fixedly connected with three stabilizing blocks, and the bottom end of the stabilizing blocks is welded with a support leg (16).

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