CN209871623U

CN209871623U - Wear-resisting unloading elephant trunk of preventing blockking up

Info

Publication number: CN209871623U
Application number: CN201920193695.8U
Authority: CN
Inventors: 白巍
Original assignee: Hubei Tonghui Industrial Integration Technology Co Ltd
Current assignee: Hubei Tonghui Industrial Integration Technology Co Ltd
Priority date: 2019-02-13
Filing date: 2019-02-13
Publication date: 2019-12-31
Anticipated expiration: 2029-02-13

Abstract

The utility model provides a wear-resisting unloading elephant trunk of preventing blockking up, relates to the transportation equipment field, including gathering materials funnel and feed box, the case mouth of feed box with gather materials the feed opening welding of funnel or through flange joint, its characterized in that: also comprises a material guiding device; the material guide device is divided into a curved section and a vertical section, the curved section is arc-shaped, the vertical section is perpendicular to the material receiving and conveying device, the curved section is positioned above the vertical section, and two side faces of the curved section and the vertical section are respectively provided with a baffle; the material guide device is arranged in the aggregate funnel, and the powdery material conveyed to the aggregate funnel flows into the feeding box through the guide of the material guide device; the discharge gate of feeder box is close to and receives material conveyer, a lateral wall slope setting of feeder box through the optimal design to guide device and feeder box, solves among the prior art big, the serious scheduling problem of operational environment pollution of wearing and tearing rate of unloading elephant trunk.

Description

Wear-resisting unloading elephant trunk of preventing blockking up

Technical Field

The utility model relates to the transportation equipment field specifically is a wear-resisting unloading elephant trunk of preventing blockking up.

Background

In the field of conveying powdery materials, the powdery materials are often required to be conveyed from one conveying device to another conveying device so as to meet the requirement of the next processing procedure, and the blanking chute is used as the most common blanking device and is most applied to the fields of coal mines, cement, stone slag and the like.

The existing blanking chute generally adopts a straight-sliding structure, as shown in figure 1, and mainly comprises an aggregate funnel, a blanking channel and a receiving and conveying device, wherein the blanking channel is in a straight-tube shape, one end of the blanking channel is connected with a blanking port of the aggregate funnel, and powdery materials fall onto the receiving and conveying device through the aggregate funnel and the blanking channel and are conveyed to the next procedure through the receiving and conveying device.

But discovery in the actual work, the powdery material can cause very big damage to the unloading elephant trunk, the material in transit can be because on inertial reason directly strikes the funnel wall, pass through the elephant trunk with the form of free fall, unordered material when causing the damage to the elephant trunk pipe wall, a large amount of dusts have still been raised, and, fall on receiving material conveyer with the form of free fall, also be a big damage to the belt that receives on the material conveyer, consequently, the unloading elephant trunk that uses among the prior art not only causes the part breakage rate high, the cost of enterprise has still been increased, need a large amount of manpower and materials to remove the change.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a new technical scheme changes powdery material blanking route through the structure that changes the unloading elephant trunk to reduce the material and flow the impact force of pipe wall and erode, reduce the material and flow the wearing and tearing that cause to receiving the material conveyer, reach and reduce breakage rate, increase of service life's purpose.

A wear-resistant anti-blocking discharging chute comprises a collecting hopper and a feeding box, wherein a mounting frame and a head cover are arranged on the collecting hopper, the head cover is fixed with the mounting frame and covers the collecting hopper, a discharging port of the collecting hopper is welded with a box port of the feeding box or connected with the box port of the feeding box through a flange, the collecting hopper is positioned below a feeding device, powdery materials are conveyed through the feeding device, finally reach a receiving and conveying device through the collecting hopper and the feeding box and are conveyed to the next working procedure, and the discharging chute further comprises a material guide device; the material guide device is arranged on the mounting frame and is divided into a bent section and a vertical section, the bent section is arc-shaped, the vertical section is perpendicular to the material receiving and conveying device, the bent section is positioned above the vertical section, two side faces of the bent section and the vertical section are respectively provided with a baffle plate, the material guide device is arranged in the aggregate hopper, and the powdery material conveyed to the aggregate hopper is guided by the material guide device and falls into the feeding box;

the back of the material guiding device is provided with a plurality of transverse rib plates and longitudinal rib plates, the transverse rib plates and the longitudinal rib plates are arranged in a crossed manner, connecting shafts penetrate through the longitudinal rib plates at positions far away from the vertical sections, the material guiding device is rotatably arranged through the longitudinal rib plates and the connecting shafts, the connecting shafts penetrate through the longitudinal rib plates and are fixed with a mounting frame, angle adjusting devices are further arranged at the vertical sections of the material guiding device, the material guiding device is enabled to rotate around the connecting shafts through adjustment of the angle adjusting devices, the angle adjusting devices comprise Y-shaped connectors, long rods and steering wheels, the Y-shaped connectors are arranged on the longitudinal rib plates, the steering wheels are positioned outside the material collecting hoppers and fixed at one ends of the long rods, the other ends of the steering wheels penetrate through the material collecting hoppers and are in threaded connection with the Y-shaped connectors, the angle adjusting devices further comprise locking blocks, the locking device is used for locking the long rod and preventing the steering wheel from turning back.

The discharge port of the feeding box is close to the receiving and conveying device, the height between the discharge port of the feeding box and the receiving and conveying device is 10cm-20cm,

one side wall of the feeding box is obliquely arranged, the angle range between the oblique angle of the side wall and the horizontal plane is 30-75 degrees, the size of the discharge hole is smaller than that of the feed hole, and the wall of a connecting box between the feed hole and the discharge hole is designed smoothly by adopting a streamline.

Further: the material guiding device can be integrally formed.

Further: the head cover is also provided with a plurality of observation windows.

Further: a group of sealing dustproof baffle plates are arranged on the receiving and conveying device.

Has the advantages that:

the feeding device is arranged in the discharging chute, so that the powdery material is discharged through the feeding device, the damage of the material flow to the collecting hopper is completely avoided, the feeding device is designed into a bending section, the material flow is reduced by a low impact angle and the motion energy of the material flow is limited, the speed of the material flow can be reduced in a certain range by the bending section, the induced wind generation and the dust raising are reduced, the material flows along the feeding device to form a cluster, the probability that fine particles are diffused into the air to form dust is greatly reduced, the material flows without impact and collides with the feeding device, meanwhile, the abrasion of the feeding device is greatly reduced, and the service life of the lining is prolonged by 7-8 times.

By using a feeder box design and by inclining one side of the feeder box design in order to gradually load the material onto the receiving conveyor so that the direction of movement of the powdery material is the same as the direction of belt travel, bringing its velocity close to that of the belt, the material flow that collects is directed to and "centered" on the receiving belt using an appropriate angle design, thereby reducing belt impact, belt wear, dust generation, eccentric loading and other problems.

Through adopting the hood on the unloading elephant trunk and setting up the design of sealed dust guard at the material conveyer that receives, further prevented flying upward of dust, maintained operational environment's cleanness and cleanness.

Drawings

FIG. 1 is a schematic structural view of a blanking chute in the prior art;

FIG. 2 is a schematic structural view of the blanking chute of the present invention;

fig. 3 is a schematic side view of the material guiding device of the present invention;

fig. 4 is a schematic view of the back structure of the material guiding device of the present invention;

fig. 5 is a schematic view of the overall structure of the present invention.

Detailed Description

Referring to fig. 5, the wear-resistant anti-blocking blanking chute comprises an aggregate funnel 1 and a feeding box 2, wherein the aggregate funnel 1 is provided with a mounting frame 11 and a head cover 12, the head cover 12 is fixed with the mounting frame 11 and covers the aggregate funnel 1, a blanking port of the aggregate funnel 1 is welded with a box opening of the feeding box 2 or is connected through a flange, preferably through the flange, and the flange is used for facilitating overhaul and replacement of new parts by personnel; however, the utility model discloses a design of sectional type has made things convenient for the maintenance and the dismantlement of unloading elephant trunk, the operation cost of enterprise has been reduced, and, also be great reduction to the maintenance time, and set up hood 12 on the funnel 1 that gathers materials, be used for preventing that the dust that powdery material produced in the unloading elephant trunk from spilling over to be scattered aloft, cause operational environment's serious pollution, moreover, hood 12 still has certain effect of stewing, the dust depends on can't spill out to the air on hood 12, also make things convenient for operating personnel's regular cleanness, and is simple and convenient, and the efficiency of cleanness can be improved.

Referring to fig. 2, the material collecting funnel 1 is located below the material feeding device, the material feeding device is generally a common belt conveyor, the belt is conveyed through the rotation of the rollers 5, the powdery material is conveyed through the belt and finally reaches the material collecting funnel 1, the powdery material passes through the material collecting funnel 1 and the feeding box 2 and finally reaches the material receiving and conveying device 4, the material receiving and conveying device 4 is also generally a common belt conveyor, and the powdery material finally falls on the belt and is conveyed to the next process through the belt.

Referring to fig. 3, the blanking chute further comprises a material guide device 3; the material guide device 3 is arranged on the mounting rack 11, the material guide device 3 is divided into a bending section and a vertical section, the bending section is arc-shaped, the vertical section is perpendicular to the material receiving and transporting device, the bending section 31 is positioned above the vertical section 32, and the bending section 31 is arranged on the material guide device 3 because: the flow of the material is analyzed by a discrete element method (DEM for short), the tests comprise the composition and physical characteristics of the material, the moisture content, the size range of the block material and the size of the fine material, Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) methods are used for verifying the flow characteristics, and the design of a certain bending angle is set, so that the powdery material continuously moves in a compact and continuous material flow mode just like water flows through a water faucet, and the material flows are controlled or guided without mutually colliding in a traditional billiard flow mode, so that the introduction of the material flows into air can be reduced to the maximum extent, and the released air and the generated floating dust are reduced.

Two side surfaces of the bent section 31 and the vertical section 32 are respectively provided with a baffle 33, the baffles 33 are used for better enabling the powdery material to flow according to a material guide groove of the material guide device 3 and preventing the material from overflowing, the material guide device 3 is arranged in the aggregate funnel 1, and the powdery material conveyed to the aggregate funnel 1 falls into the feeding box 2 under the guidance of the material guide device 3;

referring to fig. 3 and 4, the back of the material guiding device 3 is provided with a plurality of transverse rib plates and longitudinal rib plates, the transverse rib plates and the longitudinal rib plates are arranged in a crossed manner, the rib plates are used for enhancing the stability of the material guiding device 3, so that the material guiding device can be normally used in various powdery materials, and good service life is ensured, a connecting shaft 34 penetrates through the longitudinal rib plates far away from the vertical section 32, the material guiding device 3 is rotatably arranged with the connecting shaft 34 through the longitudinal rib plates, the connecting shaft 34 penetrates through the longitudinal rib plates and is fixed with the mounting frame 11, an angle adjusting device 35 is further arranged at the vertical section 32 of the material guiding device 3, the material guiding device 3 is rotated around the connecting shaft 34 through adjustment of the angle adjusting device 35, the angle adjusting device 35 comprises a Y-shaped connector 351, a long rod 352 and a steering wheel 353, the Y-shaped connector 351 is arranged on the longitudinal rib plates, the steering wheel 353 is positioned outside the aggregate funnel 1 and fixed at one end of the long rod 352, the other end of the steering wheel passes through the aggregate funnel 1 and is in threaded connection with the Y-shaped connector 351, the angle adjustment 35 device further comprises a locking block 36, and the locking block 36 is arranged beside the long rod 352 and used for locking the long rod 352 and preventing the steering wheel 353 from turning back.

The purpose of the angle adjustment device 35 used here is: according to the analysis of a discrete element method (DEM for short), different materials, different band widths, different band speeds and different conveying amounts can affect the conveying effect of the powdery material, and according to the actual situation, the material guide device 3 is further adjusted by rotating the steering wheel 353, so that the optimal blanking position is reached, and the abrasion of the powdery material to the blanking chute and the conveying belt is minimized.

Therefore, through set up guide device 3 in the unloading elephant trunk for powdery material has carried out the blanking through guide device 3, has avoided the material flow completely to the destruction of collecting hopper 1, and moreover, curved segment 31 can reduce the speed of material flow in certain extent, thereby reduce induced wind and produce and raise dust, the wearing and tearing of guide device 3 that also significantly reduces simultaneously utilize scientific calculation to produce, not only practice thrift manufacturing cost, more important can improve production efficiency, the utilization of equipment resource reaches the most interests ization.

The discharge port of the feeding box 2 is close to the receiving and conveying device 4, and the height between the discharge port of the feeding box 2 and the receiving and conveying device 4 is 10cm-20 cm;

referring to fig. 5, a side wall of the feeding box 2 is obliquely arranged, the angle of inclination of the side wall is 30-75 degrees from the horizontal plane, the size of the discharge port is smaller than that of the feed port, the wall of a connecting box between the feed port and the discharge port is designed to be smooth in streamline, the reason is to gradually load materials on the material receiving conveyor, so that the moving direction of powdery materials is the same as the running direction of the belt, the speed of the powdery materials is close to the speed of the belt, and the gathered materials are guided to and placed in the center of the receiving belt by adopting a proper angle design, so that belt impact, belt abrasion, dust generation, eccentric loading and other problems are reduced, for example: in the gangue transformation, the belt width is 800mm, the conveying capacity is 240t/h, the conveying belt speed is 1.6m/s, the maximum gangue diameter reaches 130mm, the height of a discharge port and a receiving and conveying device is preferably 20cm, the angle between an oblique angle and a horizontal plane is preferably 60-75 degrees, the falling gangue is guided to and placed at the center of a receiving belt through an oblique side wall, so that the conveying is carried out stably, compared with the non-transformation, the depreciation cost, the operation cost, the maintenance cost and the like are saved by about 70 percent, particularly for the conveying belt, the damage rate is greatly reduced, the equipment maintenance frequency is greatly reduced, and the operation cost of enterprises is reduced.

Preferably: the material guiding device 3 can be integrally formed.

Preferably: still be provided with a plurality of observation windows 13 on hood 12, through observation window 13, the inside condition of unloading elephant trunk is seen in the production that operating personnel can be timely, in time discovers the inside problem that appears, moreover, can look over under the condition of not shutting down, looks over inside part running state and wearing and tearing state, in time makes corresponding change and adjustment, gives operating personnel convenience greatly.

Preferably: be provided with a set of sealed dust guard on receiving material conveyer 4, sealed dust guard is arranged in preventing to receive the dust that appears on material conveyer 4 and spills to the air, through sealed dust guard, makes the dust collected in next department, has guaranteed operational environment's optimization.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a wear-resisting unloading elephant trunk of preventing blockking up, including aggregate funnel (1) and feed box (2), the case mouth of feed box (2) with the feed opening welding of aggregate funnel (1) or through flange joint, its characterized in that: also comprises a material guiding device (3); the material guide device (3) is divided into a bent section (31) and a vertical section (32), the bent section (31) is arc-shaped, the vertical section (32) is perpendicular to the material receiving and conveying device (4), the bent section (31) is positioned above the vertical section (32), and two side faces of the bent section (31) and the vertical section (32) are respectively provided with a baffle (33); the material guide device (3) is arranged in the aggregate funnel (1), and the powdery material conveyed to the aggregate funnel (1) falls into the feeding box (2) through the guide of the material guide device (3); the discharge gate of feed box (2) is close to and receives material conveyer (4), a lateral wall slope setting of feed box (2), the discharge gate size is less than the feed inlet, and the connecting box wall between feed inlet and the discharge gate adopts the smooth design of streamline.

2. The wear-resistant anti-clogging blanking chute according to claim 1, characterized in that: be provided with mounting bracket (11) and hood (12) on the funnel that gathers materials, guide device (3) set up on mounting bracket (11), hood (12) are fixed with mounting bracket (11) to cover funnel (1) that gathers materials.

3. The wear-resistant anti-clogging blanking chute according to claim 2, characterized in that: the back of the material guide device is provided with a plurality of transverse rib plates and longitudinal rib plates, the transverse rib plates and the longitudinal rib plates are arranged in a crossed mode, a connecting shaft (34) penetrates through the position, far away from the vertical section (32), of the longitudinal rib plates, the material guide device (3) is rotatably arranged through the longitudinal rib plates and the connecting shaft (34), the connecting shaft (34) penetrates through the longitudinal rib plates and is fixed with the mounting frame (11), an angle adjusting device (35) is further arranged at the position, far away from the vertical section (32), of the material guide device (3), and the material guide device (3) rotates around the connecting shaft (34) through adjustment of the angle adjusting device (35).

4. The wear-resistant anti-clogging blanking chute according to claim 3, characterized in that: angle adjusting device (35) are including Y type connector (351), stock (352) and steering wheel (353), Y type connector (351) set up on vertical gusset, and steering wheel (353) are located gather materials funnel (1) outside and fix the one end at stock (352), and the other end passes gather materials funnel (1) and Y type connector (351) screwed connection, angle adjusting device (35) are still including latch segment (36), latch segment (36) set up on stock (352) next door for lock stock (352), prevent the return wheel of steering wheel (353).

5. The wear-resistant anti-clogging blanking chute according to claim 1, characterized in that: the material guiding device can be integrally formed.

6. The wear-resistant anti-clogging blanking chute according to claim 2, characterized in that: the head cover is also provided with a plurality of observation windows (13).

7. The wear-resistant anti-clogging blanking chute according to claim 1, characterized in that: the height between the discharge port of the feeding box (2) and the receiving and conveying device (4) is 10cm-20 cm.

8. The wear-resistant anti-clogging blanking chute according to claim 7, characterized in that: the angle of inclination of the side wall in the feed box (2) is in the range of 30-75 degrees from the horizontal.

9. The wear-resistant anti-clogging blanking chute according to claim 1, characterized in that: a group of sealing dustproof baffles (41) are arranged on the receiving and conveying device (4).