CN209758513U

CN209758513U - Pneumatic conveying device

Info

Publication number: CN209758513U
Application number: CN201920054516.2U
Authority: CN
Inventors: 苏伟恒; 姚达章; 范肇瑞
Original assignee: Zhaoqing Xinda Equipment Manufacturing And Installation Co Ltd
Current assignee: Zhaoqing Xinda Equipment Manufacturing And Installation Co Ltd
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2019-12-10
Anticipated expiration: 2029-01-14

Abstract

The utility model discloses a pneumatic conveyor, it includes the feed bin, the hopper, material volume adjusting device, rubber seal, the mixing tank, fan and storage device, it passes through rubber seal and is connected with the hopper to go up the feed bin, the hopper lower extreme is the infundibulate, the hopper bottom is equipped with the feed opening, material volume adjusting device includes drive elevating gear, adjust pole and crossbeam, the crossbeam sets up in the hopper, drive elevating gear fixes on the crossbeam, it is connected and does elevating movement under drive elevating gear's drive to adjust the pole, it is the obconical to adjust the pole bottom, the bottom is unsettled in the central authorities of feed opening, the feed opening is connected with the mixing tank, the mixing tank is connected with storage device, the storage device top is connected with the fan. Adopt the utility model discloses, realize adjusting the unloading volume of feed opening in unit time and guarantee the even function of hopper unloading to guarantee that the material evenly carries.

Description

Pneumatic conveying device

Technical Field

The utility model relates to a technical field is carried to the material, especially relates to a pneumatic conveyor.

Background

Pneumatic conveying, also known as air flow conveying, is a specific application of fluidization technology, which utilizes the energy of air flow to convey granular materials in an enclosed pipeline along the direction of the air flow. The pneumatic conveying device has simple structure and convenient operation, and can be used for horizontal, vertical or inclined conveying. In the production process, the control and the conveying of the material amount are respectively and independently completed by a mechanical control device and a pneumatic conveying device, the pneumatic conveying adopting a combined working mode can control the material-gas ratio of the conveying to realize the maximum conveying capacity of the device, but the existing feeder (such as a star-shaped feeder) realizes the discharging by the rotation of an impeller, wherein enough clearance is reserved between the impeller and a shell to enable the impeller to rotate in the shell, but under the condition that the impeller does not rotate, tiny materials are easy to leak from the clearance between the impeller and the shell, and a part of the materials enter the clearance between the two ends of the impeller and the shell, and in the rotating process of a main shaft of the impeller, the materials are blown to the outside of the shell along the main shaft under the action of wind pressure to cause the leakage of the two ends of a bearing, so the material leakage condition can be generated by the star-shaped feeder, and the materials fall into the clearance to easily cause the impeller to be blocked, resulting in uneven blanking.

Disclosure of Invention

The utility model aims to solve the technical problem that a pneumatic conveyor is provided, realize adjusting the unloading volume of feed opening in the unit interval and guarantee the even function of hopper unloading to guarantee that the material evenly carries.

In order to solve the technical problem, the utility model provides a pneumatic conveyor, including last feed bin, hopper, material volume adjusting device, rubber seal, mixing tank, fan and storage device, it passes through rubber seal and is connected with the hopper to go up the feed bin, and the hopper lower extreme is the infundibulate, and the hopper bottom is equipped with the feed opening, material volume adjusting device includes drive elevating gear, adjusts pole and crossbeam, the crossbeam sets up in the hopper, drive elevating gear fixes on the crossbeam, adjust the pole and be connected with drive elevating gear and make elevating movement under drive elevating gear's drive, adjust the pole bottom for obconical, the unsettled central authorities in the feed opening in bottom, the feed opening is connected with the mixing tank, the mixing tank is connected with storage device, the storage device top is connected with the fan.

The material quantity adjusting device further comprises a screening plate, a movable plate and a guide rod, the movable plate is fixedly connected with the top end of the adjusting rod, one end of the guide rod is fixedly connected with the movable plate, the other end of the guide rod is connected with the cross beam in a sliding mode, the screening plate is arranged in the hopper and located above the movable plate, and a bin door is arranged on the wall of the feeding bin.

The inner wall of the hopper is connected with an electromagnet device used for fixing the sieve plate.

The maximum diameter of the bottom of the adjusting rod is larger than the inner diameter of the feed opening, and the bottom of the adjusting rod is sleeved with a rubber sleeve.

The driving lifting device comprises a base, a driving motor and a worm, the base is fixed on the cross beam, a worm wheel is connected in the base in a rotating mode, the worm is connected with the driving motor, the worm wheel is meshed with the worm, the adjusting rod is provided with an external thread, and the adjusting rod is sleeved in the worm wheel and is in threaded connection with the worm wheel.

The hopper is characterized by further comprising a vibration motor, a spring is connected between the flange of the feeding bin and the flange of the hopper, and the vibration motor is fixed on the outer wall of the hopper.

The feeding bin is characterized in that a first convex strip is arranged on the lower portion of the outer wall of the feeding bin, a first groove is formed in the upper portion of the inner wall of the rubber sealing ring, the first convex strip is matched with the first groove, the upper portion of the wall of the rubber sealing ring is locked with the feeding bin through a clamp, a second convex strip is arranged on the upper portion of the outer wall of the hopper, a second groove is formed in the lower portion of the inner wall of the rubber sealing ring, the second convex strip is matched with the second groove, and the lower portion of.

The storage device comprises a storage bin, filter bags and a high-pressure reverse spraying device, wherein the storage bin is internally provided with 5-10 partition plates, the filter bags are all hung on the partition plates, the side wall of the storage bin is provided with a feed inlet located below the partition plates, the feed inlet is connected with a mixing tank, the high-pressure reverse spraying device is arranged in the storage bin and located above the partition plates, the top of the storage bin is connected with a fan, and the bottom of the storage bin is connected with a spiral conveyor.

Wherein, still include filter equipment, filter equipment includes condenser, vapour and liquid separator and air cleaner, the fan is connected with the condenser, the condenser is connected with vapour and liquid separator, vapour and liquid separator is connected with air cleaner, air cleaner is connected with the mixing tank.

Implement the utility model has the advantages that: (1) the lifting device is driven to drive the adjusting rod to move up or down, so that the bottom of the adjusting rod is lifted along the axial lead direction of the feed opening to adjust the feeding section area of the feed opening, the feeding amount in unit time is adjusted, the lifting device and the adjusting rod are both arranged in the hopper, the material can be prevented from leaking out of the hopper, and the structure is simple; (2) the material screening plate is arranged, so that materials are screened before being conveyed, the blocking of the caking materials on the feed opening is avoided, the continuous material conveying is ensured, the material screening plate can be lifted by the adjusting rod, the material screening plate can be replaced through the bin door, and the material screening plate is suitable for screening various materials; (3) adopt filter equipment, can purify the gaseous of fan emission, the gaseous direct reflux that can purify to the mixing tank for pneumatic transport avoids the fan combustion gas directly to discharge in the environment, the polluted atmosphere.

Drawings

Fig. 1 is a schematic structural view of a pneumatic conveying device according to the present invention;

Fig. 2 is a front sectional view of a hopper of a pneumatic conveying device according to the present invention;

FIG. 3 is an enlarged view taken at point I of FIG. 2;

FIG. 4 is a view A-A of FIG. 2;

FIG. 5 is a view B-B of FIG. 2;

fig. 6 is a front sectional view of the pneumatic conveying device after the adjusting rod in the hopper ascends;

Fig. 7 is a front view of the material storing device in the hopper of the pneumatic conveying device of the present invention.

In the figure: 1. feeding a bin; 11. a bin gate; 12. a first rib; 2. a hopper; 21. a feeding port; 22. an electromagnet device; 23. a second convex strip; 3. a material quantity adjusting device; 31. driving the lifting device; 311. a base; 312. a drive motor; 313. a worm; 314. a worm gear; 32. adjusting a rod; 321. a rubber sleeve; 33. a cross beam; 34. a material sieving plate; 35. a movable plate; 36. a guide bar; 4. vibrating a motor; 5. a rubber seal ring; 51. a spring; 52. a first groove; 53. a second groove; 6. a mixing tank; 7. a fan; 8. a material storage device; 81. a storage bin; 811. a feed inlet; 82. a filter bag; 83. a high pressure back spray device; 84. a partition plate; 85. a screw conveyor; 9. a filtration device; 91. a condenser; 92. a gas-liquid separator; 93. an air filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-7, the utility model relates to a pneumatic conveyor, it includes feed bin 1, hopper 2, material volume adjusting device 3, shock dynamo 4, rubber seal 5, mixing tank 6, fan 7, storage device 8 and controller, it is connected with hopper 2 through rubber seal 5 to go up feed bin 1, go up the flange of feed bin 1 and pass through 8 bolts and the flange connection of hopper 2, 8 springs 51 cup joint respectively on 8 bolts and lie in between the flange of feed bin 1 and the flange of hopper 2, and shock dynamo 4 is fixed at 2 outer walls of hopper, and the controller is connected with shock dynamo 4 electricity, and controller control shock dynamo 4 starts, and shock dynamo 4 is used in making hopper 2 produce the shake on hopper 2, and hopper 2 shakes along vertical direction under the restriction of bolt to avoid the material to block up feed opening 21 and influence the transport. The lower extreme of 2 hoppers is the infundibulate, and 2 bottoms of hopper are equipped with feed opening 21, material volume adjusting device 3 is including drive elevating gear 31, regulation pole 32 and crossbeam 33, crossbeam 33 sets up in hopper 2, drive elevating gear 31 fixes on crossbeam 33, it is connected with drive elevating gear 31 to adjust pole 32, adjusts pole 32 bottom and be the obconic, and the bottom is unsettled in the central authorities of feed opening 21, and the controller is connected with shock dynamo 4, drive elevating gear 3 respectively, and controller control drive elevating gear 3 drive is adjusted pole 32 and is made ascending or descending movement, adjusts the cross sectional area that pole 32 bottom and feed opening 21 enclose (the horizontal plane at feed opening 21 top surface place is the horizontal plane of confirming the feed opening) through the high position of adjusting pole 32 to realize adjusting the feed amount of feed opening 21 in the unit interval. Feed opening 21 is connected with mixing tank 6, mixing tank 6 is connected with storage device 8, storage device 8 top is connected with fan 7. The controller is electrically connected with the fan 7, the fan 7 adopts a turbine high-pressure fan, the controller controls the fan 7 to start, the fan 7 exhausts air, and materials are absorbed into the material storage device 8 in a negative pressure environment.

Preferably, referring to fig. 2 and 4, the material amount adjusting device 3 further includes a material sieving plate 34, a movable plate 35 and a guide rod 36, the movable plate 35 is fixedly connected to the top end of the adjusting rod 32, one end of the guide rod 36 is fixedly connected to the movable plate 35, the other end of the guide rod 36 is slidably connected to the cross beam 33, the material sieving plate 34 is disposed in the hopper 2 and located above the movable plate 35, a bin door 11 is disposed on a wall of the upper bin 1, and the bin door 11 is located above a flange of the upper bin 1. The phenomenon of caking can appear in the material of piling up, and the material of caking influences even unloading or wearing and tearing pipeline easily at pneumatic conveying's in-process, so be provided with sieve flitch 34 to reach the purpose of screening material. Referring to fig. 6, the controller controls the driving lifting device 31, the driving lifting device 31 drives the adjusting rod 32 to move upward, the adjusting rod 32 drives the movable plate 35 to move upward, the movable plate 35 lifts the material sieving plate 34 to the position of the bin gate 11, and the bin gate 11 is opened to replace the material sieving plate 34, so that the material sieving device is suitable for sieving different materials.

Preferably, referring to fig. 2 and 3, the inner wall of the hopper 2 is connected with an electromagnet device 22 for fixing the sieve plate 34. Under the condition that the sieve plate 34 is replaced, the controller controls the driving lifting device 31, the driving lifting device 31 drives the adjusting rod 32 to do descending motion, the sieve plate 34 descends along with the adjusting rod 32 until the sieve plate 34 is placed on the electromagnet device 22, the controller is electrically connected with the electromagnet device 22, the electromagnet device 22 is electrified to generate magnetism, the sieve plate 34 is fixed, and the sieve plate 34 is prevented from moving when the hopper 2 vibrates.

Preferably, referring to fig. 6, the maximum diameter of the bottom of the adjusting rod 32 is larger than the inner diameter of the feed opening 21, and the bottom of the adjusting rod 32 is sleeved with a rubber sleeve 321. A rubber sleeve 321 is provided to buffer the lowering of the adjusting rod 32 to the lowest position (i.e. the closing of the feed opening 21).

Preferably, referring to fig. 5 and 6, the driving lifting device 31 includes a base 311, a driving motor 312 and a worm 313, the base 311 is fixed on the cross beam 33, a worm wheel 314 is rotatably connected in the base 311, the worm 313 is connected with the driving motor 312, the worm wheel 314 is meshed with the worm 313, the adjusting rod 32 has an external thread, and the adjusting rod 32 is sleeved in the worm wheel 314 and is in threaded connection with the worm wheel 314. Specifically, the driving motor 312 is a servo driving motor, the controller is electrically connected with the driving motor 312, the controller controls the driving motor 312 to rotate, the driving motor 312 drives the worm 313 to rotate, the worm 313 and the worm wheel 314 are meshed with the driving worm wheel 314 to rotate, and the internal thread of the worm wheel 314 is matched with the external thread of the adjusting rod 32 to enable the adjusting rod 32 to move up or down; in addition, a screw nut can be fixed on the wheel center of the worm wheel 314, the straight rod section of the adjusting rod 32 can be a screw rod, the worm wheel 314 rotates to drive the screw nut to rotate, and the screw nut and the screw rod are matched to realize the ascending or descending motion of the adjusting rod 32.

Preferably, referring to fig. 2 and 3, the lower part of the outer wall of the feeding bin 1 is provided with a first protruding strip 12, the upper part of the inner wall of the rubber sealing ring 5 is provided with a first groove 52, the first protruding strip 12 is matched with the first groove 52, the upper part of the outer wall of the rubber sealing ring 5 is locked with the feeding bin 1 through a clamping hoop, the upper part of the outer wall of the hopper 2 is provided with a second protruding strip 23, the lower part of the inner wall of the rubber sealing ring 5 is provided with a second groove 53, the second protruding strip 23 is matched with the second groove 53, and the lower part of the outer wall. Specifically, rubber seal 5 middle part has ripple type fold, and when hopper 2 vibrations unloading, cushions through rubber seal 5, avoids driving the feed bin and shakes together.

preferably, referring to fig. 7, the storage device 8 includes a storage bin 81, filter bags 82 and a high-pressure back-spraying device 83, a partition 84 is provided inside the storage bin 81, 5-10 filter bags 82, preferably 7 filter bags 82 are hung on the partition 84, a feed inlet 811 is provided on a side wall of the storage bin 81 and located below the partition 84, the feed inlet 811 is connected with the mixing tank 6, the high-pressure back-spraying device 83 is provided inside the storage bin 81 and located above the partition 84, a top of the storage bin 81 is connected with the fan 7, and a screw conveyor 85 is connected to a bottom of the storage bin 81. The controller is electrically connected with the high-pressure back-spraying device 83, materials enter the storage bin 81 from the feeding hole 811, gas is discharged after being filtered by the filter bag 82, the high-pressure back-spraying device 83 is electrified at intervals to spray high-pressure air flow, the high-pressure air flow reversely sprays ash from inside to outside through the filter bag 82, and the materials attached to the outer surface of the filter bag 82 fall into the storage bin 81, so that the situation that the materials are attached to the surface of the filter bag 82 to influence the gas filtering effect of the filter bag 82 is avoided.

Preferably, referring to fig. 1, the air-fuel mixer further comprises a filtering device 9, wherein the filtering device 9 comprises a condenser 91, a gas-liquid separator 92 and an air filter 93, the fan 7 is connected with the condenser 91, the condenser 91 is connected with the gas-liquid separator 92, the gas-liquid separator 92 is connected with the air filter 93, and the air filter 93 is connected with the mixing tank 6. Specifically, the condenser 91 is a finned tube condenser, the gas-liquid separator 92 is a ZCQF gas-water separator, the gas is cooled by the condenser 91 after being discharged from the fan 7, then water mist in the gas is removed by the gas-liquid separator 92, and the dried gas is dedusted by the air filter 93 and then flows back to the mixing tank 6. The filter device 9 can purify the discharged gas and recycle the gas.

The working principle is as follows: before the pneumatic conveying work, the controller controls and drives the lifting device 31 to drive the adjusting rod 32 to do ascending movement, so that the movable plate 35 is lifted to the position of the bin door 11, the bin door 11 is opened, the proper screening plate 34 is placed on the movable plate 35, and the bin door 11 is closed; then the controller controls the driving lifting device 31 to drive the adjusting rod 32 to move downwards, so that the sieve plate 34 moves downwards along with the adjusting rod 32 until the sieve plate 34 is placed on the electromagnet device 22 and fixed by the electromagnet device 22, and the adjusting rod 32 continues to move downwards until the bottom of the adjusting rod 32 seals the discharging opening 21. Then, the materials are put into the feeding bin 1, and the controller controls the vibration motor 4 to start vibration feeding; the controller controls and drives the lifting device 31 to drive the adjusting rod 32 to ascend by a preset height, so that a proper section blanking amount is obtained; the controller controls the fan 7 to start, the fan 7 pumps air, and materials are uniformly conveyed into the storage bin 81 by air. Adopt the utility model discloses, realize adjusting the unloading volume of feed opening in unit time and guarantee the even function of hopper unloading to guarantee that the material evenly carries.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The pneumatic conveying device is characterized by comprising an upper bin (1), a hopper (2), a material quantity adjusting device (3), a rubber sealing ring (5), a mixing tank (6), a fan (7) and a storage device (8), wherein the upper bin (1) is connected with the hopper (2) through the rubber sealing ring (5), the lower end of the hopper (2) is funnel-shaped, a feed opening (21) is formed in the bottom of the hopper (2), the material quantity adjusting device (3) comprises a driving lifting device (31), an adjusting rod (32) and a cross beam (33), the cross beam (33) is arranged in the hopper (2), the driving lifting device (31) is fixed on the cross beam (33), the adjusting rod (32) is connected with the driving lifting device (31) and does lifting motion under the driving of the driving lifting device (31), and the bottom of the adjusting rod (32) is in an inverted cone shape, the bottom is unsettled in the central authorities of feed opening (21), feed opening (21) are connected with mixing tank (6), mixing tank (6) are connected with storage device (8), storage device (8) top is connected with fan (7).

2. A pneumatic conveying device according to claim 1, wherein the material amount adjusting device (3) further comprises a material sieving plate (34), a movable plate (35) and a guide rod (36), the movable plate (35) is fixedly connected with the top end of the adjusting rod (32), one end of the guide rod (36) is fixedly connected with the movable plate (35), the other end of the guide rod is slidably connected with the cross beam (33), the material sieving plate (34) is arranged in the hopper (2) and located above the movable plate (35), and the wall of the feeding bin (1) is provided with a bin door (11).

3. A pneumatic conveying apparatus according to claim 2, characterised in that the inner wall of the hopper (2) is connected with an electromagnet device (22) for fixing the sieve plate (34).

4. A pneumatic conveying apparatus according to claim 1, wherein the maximum diameter of the bottom of the adjusting rod (32) is larger than the inner diameter of the feed opening (21), and the rubber sleeve (321) is sleeved on the bottom of the adjusting rod (32).

5. A pneumatic conveying device according to claim 2, wherein the driving lifting device (31) comprises a base (311), a driving motor (312) and a worm (313), the base (311) is fixed on the cross beam (33), a worm wheel (314) is rotatably connected in the base (311), the worm (313) is connected with the driving motor (312), the worm wheel (314) is engaged with the worm (313), the adjusting rod (32) has an external thread, and the adjusting rod (32) is sleeved in the worm wheel (314) and is in threaded connection with the worm wheel (314).

6. A pneumatic conveying device according to claim 1, further comprising a vibration motor (4), wherein a spring (51) is connected between the flange of the upper bin (1) and the flange of the hopper (2), and the vibration motor (4) is fixed on the outer wall of the hopper (2).

7. A pneumatic conveying device according to claim 1, wherein the lower part of the outer wall of the upper bin (1) is provided with a first rib (12), the upper part of the inner wall of the rubber sealing ring (5) is provided with a first groove (52), the first rib (12) is matched with the first groove (52), the upper part of the outer wall of the rubber sealing ring (5) is locked with the upper bin (1) through a hoop, the upper part of the outer wall of the hopper (2) is provided with a second rib (23), the lower part of the inner wall of the rubber sealing ring (5) is provided with a second groove (53), the second rib (23) is matched with the second groove (53), and the lower part of the outer wall of the rubber sealing ring (5) is locked with the hopper (2) through a.

8. A pneumatic conveying device according to claim 1, wherein the storage device (8) comprises a storage bin (81), filter bags (82) and a high-pressure back-spraying device (83), a partition plate (84) is arranged inside the storage bin (81), 5-10 filter bags (82) are arranged, the filter bags (82) are all hung on the partition plate (84), a feed port (811) is arranged on the side wall of the storage bin (81) and located below the partition plate (84), the feed port (811) is connected with the mixing tank (6), the high-pressure back-spraying device (83) is arranged inside the storage bin (81) and located above the partition plate (84), the top of the storage bin (81) is connected with a fan (7), and a spiral conveyor (85) is connected to the bottom of the storage bin (81).

9. A pneumatic conveying apparatus according to claim 1, further comprising a filtering apparatus (9), wherein the filtering apparatus (9) comprises a condenser (91), a gas-liquid separator (92) and an air filter (93), the blower (7) is connected to the condenser (91), the condenser (91) is connected to the gas-liquid separator (92), the gas-liquid separator (92) is connected to the air filter (93), and the air filter (93) is connected to the mixing tank (6).