Transition device for coal transportation

Abstract

The utility model relates to a transition device for coal material transportation, which comprises a collecting part, a first conveying part, a second conveying part, a second conveying part, a third conveying part, a fourth conveying part, a fifth conveying part and a sixth conveying part, and is characterized in that the collecting part is provided with a first feed port and a first discharge port; the three-way pipe is provided with a second feeding hole, a second discharging hole and a third discharging hole, the second feeding hole is communicated with the first discharging hole, and the second discharging hole and the third discharging hole are respectively used for conveying the coal to the downstream; the three-way baffle is used for selectively communicating the second feeding hole with the second discharging hole or the third discharging hole; and the guide baffle is used for guiding the coal from the first feed port, then enabling the coal to flow out from the first discharge port, and enabling the coal to flow to a washing area of the three-way baffle through the second feed port. The guide baffle can guide the coal from the upstream so that the coal can flow to the washing area of the three-way baffle, the problems that due to the fact that the coal washes other positions of the three-way baffle, the three-way baffle is uneven in stress and abrasion and deviates in position are solved, the service life of the three-way baffle is prolonged, and the operation effect of the three-way baffle is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coal transportation, and in particular, to a transition device for coal transportation. Background Art

[0002] In the power and coal industries, coal is basically transported by belt conveyors. In order to avoid downtime caused by equipment failure, the system will normally arrange two conveyor belts of the same specification, A and B, as backup for each other. In the entire conveying system, in order to enable the upper-level A belt (or B belt) conveyor to convey materials to the lower-level A belt (or B belt) conveyor, a three-way device is usually set between the upper conveyor and the lower conveyor to change the direction of the material.

[0003] The structure of the three-way device includes an upper inlet and two lower outlets. There is a material baffle driven by an external power mechanism inside the three-way device to adjust the material to be transported from any outlet below the three-way device. However, during the use of the three-way device, if the incoming materials have not been effectively collected and guided, the incoming materials are unstable, the materials will be divergent, and the material flow cannot be guaranteed to be concentrated in the flushing area of ​​the three-way baffle. Long-term flushing operation in the non-designed flushing area will cause the three-way baffle to be unevenly stressed, unevenly worn, and easily shifted in position, resulting in obvious differences in the overall transfer effect of the three-way baffle when the three-way baffle is in different working positions. For example, when the three-way baffle of the three-way device is in one working condition, the material flow rate is large and the amount of noise and dust on site is large. When the three-way baffle of the three-way device is in another working condition, it is easy to have a material blockage problem. In severe cases, it may even affect the normal operation of the system equipment, increase the inspection work of the operating personnel, and greatly reduce the normal service life of the equipment. Utility Model Content

[0004] An object of the present disclosure is to provide a transition device for coal transportation to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a transition device for coal transportation, which is connected between upstream transportation equipment and downstream transportation equipment, and includes: a gathering part, which is constructed as a shell-like structure with a first feed port and a first discharge port, and the first feed port is used to receive coal from the upstream transportation equipment; a three-way pipe, which has a second feed port, a second discharge port and a third discharge port, and the second feed port is connected to the first discharge port, and the second discharge port and the third discharge port are respectively used to transport the coal to the downstream transportation equipment; a three-way baffle installed in the three-way pipe to selectively connect the second feed port with the second discharge port or the third discharge port; and a guiding baffle, which is arranged in the gathering part, and is used to guide the coal from the first feed port to flow out from the first discharge port, and flow to the flushing area of ​​the three-way baffle through the second feed port.

[0006] Optionally, the guide baffle is constructed as a groove with a flat U-shaped cross-section and extending in the height direction, wherein the opening end of the groove faces the first feed port, and the first discharge port is located at the lower side of the groove.

[0007] Optionally, a plurality of connecting plates are formed on the back side of the guide baffle, and connecting holes are respectively formed on the plurality of connecting plates near the upper side, and the transition device further includes: two lifting assemblies, respectively installed on the outer wall of the collecting portion and located on both sides of the guide baffle; a straight rod, which passes through the plurality of connecting holes in sequence, and the two ends of the straight rod are respectively connected to the corresponding lifting assemblies, so that the height of the guide baffle can be adjusted by the lifting assemblies; and a telescopic assembly, which is hinged to the back side of the guide baffle near the lower end, so that the telescopic assembly can drive the guide baffle to rotate around the straight rod when telescoping.

[0008] Optionally, the telescopic assembly includes: a hinge seat installed on the back side of the guide baffle near the lower end; a hinge hinged to the hinge seat; a sealing seat installed on the outer side of the collecting part at a position opposite to the hinge; two brackets installed at intervals on both sides of the sealing seat; an adjusting shaft hinged between the two brackets; a screw rod, one end of which passes through the adjusting shaft, the sealing seat and the side wall of the collecting part in sequence and is rotatably connected to the hinge rod; a locking nut screwed on the outer side of the screw rod and abutting against the side of the adjusting shaft away from the sealing seat; and a hand wheel connected to the other end of the screw rod.

[0009] Optionally, the collecting portion is formed with an adjustment slot for the straight rod to extend out, and each of the lifting components includes: a frame fixed to the outer wall of the collecting portion at a position corresponding to the adjustment slot, the frame including two vertical rods and two horizontal rods, the two vertical rods respectively having a plurality of first adjustment holes arranged in sequence along the up and down directions; a mounting frame installed on a side of the frame away from the collecting portion and used to fix the ends of the straight rods, the positions of the mounting frame corresponding to the two vertical rods are respectively provided with a plurality of second adjustment holes corresponding to the corresponding first adjustment holes; and a plurality of mounting pins for being inserted into the corresponding second adjustment holes and the first adjustment holes to fix the mounting frame to the frame.

[0010] Optionally, it also includes a guide dust prevention pipe connected between the first discharge port and the second feed port, and the guide dust prevention pipe is used to guide the coal to the upper end opening of the three-way baffle.

[0011] Optionally, the three-way baffle includes: a first baffle; two second baffles, respectively connected to the two ends of the first baffle; two third baffles, respectively connected to the end of the corresponding second baffle away from the first baffle, the third baffle is constructed in a fan shape; and a reinforcing rod connected between the two third baffles, wherein the first baffle, the two second baffles and the two third baffles are combined to form a U-shaped structure, the angle between the first baffle and the second baffle is greater than 120°, and the angle between the second baffle and the third baffle is greater than 120°.

[0012] Optionally, it also includes a driving assembly for driving the three-way baffle to rotate, and the driving assembly includes: two bearing seats, respectively fixed to the outer tube wall of the three-way pipe, and located on both sides of the three-way baffle; two rotating shafts, one end of the rotating shaft is rotatably connected to the corresponding bearing seat, and the other end passes through the three-way pipe and is connected to the center of the corresponding third baffle; a crank, connected to the end of any one of the rotating shafts near the middle; and a push rod, one end of which is connected to the end of the crank to push the crank to drive the rotating shaft to rotate.

[0013] Optionally, a limit assembly for limiting the rotation of the crank is further included, and the limit assembly includes: two mounting seats, respectively mounted on the tube wall of the three-way pipe, and limit grooves are provided on the mounting seats; and two travel switches, respectively clamped in the corresponding limit grooves, and the travel switches at least partially extend out of the limit grooves, wherein the end of the crank away from the push rod is used as a limit rod, so that when the three-way baffle is rotated into place, the limit rod is connected to the corresponding travel switch to control the three-way baffle to stop rotating.

[0014] Optionally, it also includes a shaking assembly for shaking off the coal on the three-way baffle, and the shaking assembly includes: a rapper installed on the outer side of the first baffle; two fixing seats, respectively fixed to the side walls of the three-way pipe, and the two fixing seats are respectively located on the lower side of the corresponding bearing seats; a plurality of shock-absorbing springs, installed between the corresponding fixing seats and the bearing seats; and a plurality of pressure sensors, installed on the corresponding shock-absorbing springs, so as to control the operation of the rapper when the measured value is greater than a preset value.

[0015] Through the above technical scheme, a collecting part and a guiding baffle are added between the second feed port of the three-way pipe and the upstream transportation equipment. The coal from the upstream is collected by the collecting part and guided by the guiding baffle, so that the coal can all flow to the flushing area of ​​the three-way baffle, avoiding the problems of uneven force, uneven wear and position displacement of the three-way baffle due to the flushing of other positions of the three-way baffle by the coal, thereby improving the service life of the three-way baffle and ensuring the operation effect of the three-way baffle under different working conditions.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 A transition device for coal transportation is exemplarily shown according to the present disclosure;

[0019] Figure 2 yes Figure 1 A front view of the transition device shown in;

[0020] Figure 3 yes Figure 1 A right side view of the transition device shown in FIG.

[0021] Figure 4 yes Figure 1 A schematic diagram of a transition device with a collection portion omitted is shown in FIG.

[0022] Figure 5 yes Figure 1 Schematic diagram of the guide baffle, lifting assembly and telescopic assembly shown in FIG.

[0023] Figure 6 is a schematic diagram of a lifting assembly exemplarily shown according to the present disclosure;

[0024] Figure 7is a schematic diagram of assembling a sealing member and a fixing frame according to an exemplary embodiment of the present disclosure;

[0025] Figure 8 is a schematic diagram of the installation of an adjustment slot and an adjustment window exemplarily shown according to the present disclosure;

[0026] Fig. 9 is a schematic diagram of a flow guide and dust prevention pipe, a three-way baffle, a drive assembly, and a material shaking assembly exemplarily shown according to the present disclosure;

[0027] Fig.10 is a schematic diagram of a three-way baffle exemplarily shown according to the present disclosure;

[0028] Fig.11 is a schematic diagram of a transition device for coal transportation according to an exemplary embodiment of the present disclosure, wherein the transition device is in a first working condition;

[0029] Fig.12 It is a schematic diagram of a transition device for coal transportation according to an exemplary embodiment of the present disclosure, wherein the transition device is in a second operating condition.

[0030] Description of Reference Numerals

[0031] Upstream transport equipment 1, conveyor belt 11, roller 12, shield 2, adjustment groove 21, funnel 3, guide baffle 4, connecting plate 41, connecting hole 42, connecting rod 51, lifting assembly 52, cross bar 521, vertical rod 522, first adjustment hole 5221, seal 523, upper sealing plate 5231, middle sealing plate 5232, lower seal 5233, fixing frame 524, pressure strip 525, adjustment frame 526, second adjustment hole 5261, adjustment platform 527, adjustment window 528, first through hole 529, second through hole 5210; telescopic assembly 6, hinge seat 61, hinge 62, sealing seat 63, screw 64, adjusting shaft 65, threaded hole 651, bracket 66, locking nut 67, handwheel 68, guide dust pipe 71, three-way pipe 72, three-way baffle 73, first baffle 731, second baffle 732, third baffle 733, reinforcing rod 734, drive assembly 74, rotating shaft 741, bearing seat 742, crank 743, push rod 744, limit rod 745, shaking material assembly 75, rapper 751, shock absorbing spring 752, pressure sensor 753, fixing seat 754, bolt 755, limit assembly 76, travel switch 761, mounting seat 762, limit groove 763. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] In the present disclosure, unless otherwise stated, the directional words used, such as "inside, outside", "up, down", etc., may be based on the structure of the relevant parts themselves, or may be based on the orientation of the relevant parts when used in combination. For example: two lifting assemblies are respectively installed on the "outer" wall of the collecting part, where the "outer" wall refers to the outer wall surface of the accommodating space of the collecting part; the first discharge port is located on the "lower side" of the groove, where the "lower side" is based on the height direction only, that is, it refers to the side of the groove close to the ground.

[0034] In the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another element, and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] Reference Figure 1-Figure 12 The present disclosure exemplarily shows a transition device for coal transportation, which is connected between an upstream transportation device and a downstream transportation device. The present disclosure does not limit the upstream transportation device and the downstream transportation device. For example, Figure 1 and Figure 2 In the illustrated embodiment, the upstream transport device 1 may include a conveyor belt 11 and a roller 12, the roller 12 being disposed at the first feed port of the collection section, the conveyor belt 11 being wound around the outer circumference of the roller 12, and the conveying direction of the conveyor belt 11 being toward the first feed port, and the coordinated structure of the conveyor belt 11 and the roller 12 allowing the coal to enter the collection section more smoothly along the conveying direction. The downstream transport device may also be a similar transport device. The transition device for coal transportation includes a collecting portion constructed as a shell-like structure with a first feed port (not shown in the figure) and a first discharge port (not shown in the figure), a three-way pipe 72 with a second feed port (not shown in the figure), a second discharge port (not shown in the figure) and a third discharge port (not shown in the figure), a three-way baffle 73 installed in the three-way pipe 72 for selectively connecting the second feed port with the second discharge port or the third discharge port, and a guiding baffle 4 arranged in the collecting portion for guiding the coal from the first feed port to flow out from the first discharge port and flow through the second feed port to the flushing area of ​​the three-way baffle 73. Among them, the first feed port is used to receive coal from the upstream transportation equipment, the second feed port is connected to the first discharge port, and the second discharge port and the third discharge port are respectively used to transport the coal to the downstream transportation equipment. It should be explained here that, with reference to Fig.11 and Fig.12 The positions of the three-way baffle 73 in two different working conditions are shown respectively, corresponding to discharging through the second discharge port and discharging through the third discharge port, respectively. The two working conditions will not be explained below.

[0036] The present disclosure does not limit the specific structure of the collection part. Figure 1-Figure 3In the illustrated embodiment, the collecting portion may include a shield 2 and a hopper 3 , the discharge end of the upstream transport device 1 is installed at the feed port of the shield 2 , and the discharge port of the shield 2 is connected to the feed port of the hopper 3 .

[0037] It should be explained that the three-way baffle 73 is an important component in the three-way pipe 72, which is mainly used to change the flow direction of the coal material. The flushing area refers to the preset area of ​​the three-way baffle 73 for receiving the incoming material from the guide baffle 4. The area is highly durable, and the force design of the area is relatively uniform when the coal material is flushed to this position, avoiding problems caused by uneven force and improving the service life of the three-way baffle 73. Since the flushing area of ​​the three-way baffle 73 is well known to those skilled in the art, it will not be introduced in detail here. The guide baffle 4 disclosed in the present invention can guide the incoming material to the flushing area of ​​the three-way baffle 73 side by side.

[0038] By using the above-mentioned technical solution, a collecting portion and a guide baffle 4 are added between the second feed port of the three-way pipe 72 and the upstream transportation equipment 1. The coal from the upstream is collected by the collecting portion and guided by the guide baffle 4, so that all the coal can flow to the flushing area of ​​the three-way baffle 73, avoiding the problems of uneven force, uneven wear and position displacement of the three-way baffle 73 due to the coal flushing other positions of the three-way baffle 73, thereby improving the service life of the three-way baffle 73 and ensuring the operation effect of the three-way baffle 73 under different working conditions.

[0039] The present disclosure does not limit the specific structure of the guide baffle 4. Figure 5 In the illustrated embodiment, the guiding baffle 4 can be constructed as a groove with a flat U-shaped cross section and extending in the height direction, wherein the opening end of the groove faces the first feed port, and the first discharge port is located at the lower side of the groove. With such a design, during operation, coal from the upstream transportation equipment 1 can enter the groove for collection and guidance, and move downward along the groove under the action of gravity and enter the three-way pipe 72 through the first discharge port.

[0040] Preferably, Figure 4 In the illustrated embodiment, the guiding baffle 4 may be an arc-shaped structure, with the inner curved surface of the arc-shaped structure serving as a working surface and facing the first feed port. The purpose of such a design is to allow the material falling from the conveyor belt 11 to be guided along the arc-shaped surface and then fall to the corresponding position of the three-way baffle 73. The arc has a certain buffering force, which can better collect the coal.

[0041] Reference Figure 2-Figure 12In the embodiment of the present disclosure, a plurality of connecting plates 41 may be formed on the back side of the guide baffle 4, and connecting holes 42 may be formed respectively at the positions near the upper sides of the plurality of connecting plates 41, where the "back side" refers to the side facing away from the outlet. The transition device may also include: two lifting assemblies 52, which are respectively mounted on the outer wall of the collecting portion and are located on both sides of the guide baffle 4; a straight rod 51, which passes through the plurality of connecting holes 42 in sequence, and the two ends of the straight rod 51 may be respectively connected to the corresponding lifting assemblies 52, so that the height of the guide baffle 4 can be adjusted by the lifting assemblies 52; and a telescopic assembly 6, which is hinged to the back side of the guide baffle 4 near the lower end, so that the telescopic assembly 6 drives the guide baffle 4 to rotate around the straight rod 51 when it is extended and retracted. With such a design, the position of the guide baffle 4 can be linearly adjusted through the lifting assembly 52 and the telescopic assembly 6, so that the guide baffle 4 can be suitable for various materials and different scenes, thereby improving the practicality and service life of the transition device.

[0042] The present disclosure does not limit the specific structure of the telescopic assembly 6. Figure 4 and Figure 5 In the illustrated embodiment, the telescopic assembly 6 may include: a hinge seat 61, mounted on the back side of the guide baffle 4 near the lower end; a hinge 62, hinged to the hinge seat 61; a sealing seat 63, mounted on the outer side of the collecting portion at a position opposite to the hinge 62; two brackets 66, installed at intervals on both sides of the sealing seat 63; an adjustment shaft 65, hinged between the two brackets 66; a screw rod 64, one end of which passes through the adjustment shaft 65, the sealing seat 63 and the side wall of the collecting portion in sequence and is rotatably connected to the hinge 62; a locking nut 67, screwed on the outer side of the screw rod 64 and abutting against the side of the adjustment shaft 65 away from the sealing seat 63; and a hand wheel 68, connected to the other end of the screw rod 64. The adjustment shaft 65 can rotate around the central axis, and the center of the adjustment shaft 65 can be provided with a threaded hole 651, which is threadedly matched with the screw rod 64. By rotating the handwheel 68 to drive the screw 64 to achieve reciprocating linear motion, the guide baffle 4 can rotate and swing around the straight rod 51, so that the material falls centrally into the flushing area of ​​the three-way baffle 73. The telescopic component 6 can adjust the small horizontal movement of the guide baffle 4 to complete online adjustment.

[0043] Reference Figure 1-Figure 8In the embodiment of the present disclosure, the collecting part may be formed with an adjustment slot 21 for the straight rod 51 to extend out, and each lifting assembly 52 may include: a frame fixed to the outer wall of the collecting part at a position corresponding to the adjustment slot 21. The frame may include two vertical rods 522 and two horizontal rods 521, and the two vertical rods 522 may respectively have a plurality of first adjustment holes 5221 arranged in sequence along the up and down direction; a mounting frame, which is installed on the side of the frame away from the collecting part and is used to fix the end of the straight rod 51, and the positions of the mounting frame corresponding to the two vertical rods 522 may be respectively provided with a plurality of second adjustment holes 5261 corresponding to the corresponding first adjustment holes 5221; and a plurality of mounting pins (not shown in the figure) for plugging into the corresponding second adjustment holes 5261 and the first adjustment holes 5221 to fix the mounting frame to the frame. When in use, by adjusting the second adjustment holes 5261 to align with the corresponding first adjustment holes 5221, the height of the mounting frame can be changed, and then the height of the straight rod 51 can be changed, that is, the height of the guide baffle 4 can be changed.

[0044] The present disclosure does not limit the specific structure of the lifting assembly 52. Figure 1-Figure 8 In the illustrated embodiment, each lifting assembly 52 may further include a sealing member 523, a fixing frame 524, two pressure strips 525, and the mounting frame may include an adjustment frame 526 and an adjustment platform 527. The two horizontal bars 521 and the two vertical bars 522 may enclose an adjustment window 528, and the adjustment window 528 is covered on the adjustment slot 21. The sealing member 523 may include an upper sealing plate 5231, a middle sealing plate 5232, and a lower sealing plate 5233 connected in sequence, and the middle sealing plate 5232 may be attached to the adjustment window 528 to seal the adjustment window 528. The fixing frame 524 may be installed around the middle sealing plate 5232, and the two ends of the two pressure strips 525 arranged transversely may be fixed to the vertical bars 522 and the fixing frame 524. The upper sealing plate 5231 and the lower sealing plate 5233 may be exposed at the outer end, the middle sealing plate 5232 may be provided with a first through hole 529, the sealing member 523 may be made of a flexible material, and the upper and lower positions of the first through hole 529 may be adjusted by adjusting the width of the upper sealing plate 5231 and the lower sealing plate 5233. The adjusting platform 527 may be fixed on the adjusting frame 526, and the adjusting platform 527 may be provided with a second through hole 5210, and the second through hole 5210 may be arranged opposite to the first through hole 529. After the connecting rod 51 passes through a group of connecting holes 42, one end thereof may pass through the adjusting groove 21, the first through hole 529 and the second through hole 5210 located on one side of the collecting part in sequence, and the other end thereof may pass through the adjusting groove 21, the first through hole 529 and the second through hole 5210 located on the other side of the collecting part in sequence. The lifting assembly 52 may be used to adjust the small range movement of the guiding baffle 4 along the height direction.

[0045] Reference Figure 1-Figure 4In the embodiment of the present disclosure, the transition device for coal transportation may further include a guide dust-proof pipe 71 connected between the first discharge port and the second feed port, and the guide dust-proof pipe 71 is used to guide the coal to the upper end opening of the three-way baffle 73. The feed port of the guide dust-proof pipe 71 can be connected with the first discharge port of the collection part, and the guide dust-proof pipe 71 can collect jumping materials and dust to prevent coal particles and dust from bouncing and jumping outside the three-way baffle 73, causing the shaft 741 to accumulate and get stuck. The second feed port of the three-way pipe 72 is connected to the outer end of the guide dust-proof pipe 71, and the discharge port of the guide dust-proof pipe 71 is arranged in the three-way pipe 72, and the discharge port of the guide dust-proof pipe 71 is connected with the upper end of the three-way baffle 73.

[0046] The present disclosure does not limit the specific structure of the three-way baffle 73. Fig.10 In the illustrated embodiment, the three-way baffle 73 may include: a first baffle 731; two second baffles 732, respectively connected to the two ends of the first baffle 731; two third baffles 733, respectively connected to the ends of the corresponding second baffles 732 away from the first baffle 731, the third baffle 733 may be constructed in a fan-shaped, preferably semi-circular shape, because the third baffle 733 is a fan-shaped structure, the lower end of the guide dust-proof pipe 71 connected thereto may also be a fan-shaped structure that matches each other; and a reinforcing rod 734, connected between the two third baffles 733. Among them, the first baffle 731, the two second baffles 732 and the two third baffles 733 can be enclosed to form a U-shaped structure, and the reinforcing rod 734 can better fix the U-shaped structure. It is used to improve the use strength of the three-way baffle 73. The angle between the first baffle 731 and the second baffle 732 can be greater than 120°, and the angle between the second baffle 732 and the third baffle 733 can be greater than 120°. Compared with the traditional 90° angle, the angle is larger, the clamping force on the coal at the angle is weakened, and the material is more likely to fall down, which can reduce the risk of coal accumulation at the angle. The first baffle 731, the second baffle 732 and the third baffle 733 can be made of steel plates to improve strength.

[0047] Reference Figure 1-Figure 4In the embodiment of the present disclosure, the transition device for coal transportation may further include a driving assembly 74 for driving the three-way baffle 73 to rotate. The driving assembly 74 may include: two bearing seats 742, respectively fixed to the outer tube wall of the three-way pipe 72 and located on both sides of the three-way baffle 73; two rotating shafts 741, one end of the rotating shaft 741 is rotatably connected to the corresponding bearing seat 742, and the other end passes through the three-way pipe 72 and is connected to the center of the corresponding third baffle 733; a crank 743, connected to the end of any rotating shaft 741 near the middle; and a push rod 744, one end of which is connected to the end of the crank 743 to push the crank 743 to drive the rotating shaft 741 to rotate. When in use, the crank 743 is pushed by the push rod 744 to drive the rotating shaft 741 to rotate, thereby driving the three-way baffle 73 to rotate, so as to switch the transition device from one working condition to another working condition, where the two working conditions can be referred to. Fig.11 and Fig.12 .

[0048] Reference Figure 4 , Fig.11 and Fig.12 In the embodiment of the present disclosure, the transition device for coal transportation may further include a limit assembly 76 for limiting the rotation of the crank 743. The limit assembly 76 may include: two mounting seats 762, which are respectively mounted on the pipe wall of the three-way pipe 72, and the mounting seats 762 may be provided with limit grooves 763; and two travel switches 761, which are respectively clamped in the corresponding limit grooves 763, and the travel switches 761 may at least partially extend out of the limit grooves 763. Among them, one end of the crank 743 away from the push rod 744 may be used as a limit rod 745, so that when the three-way baffle 73 rotates to the right position, the limit rod 745 is connected to the corresponding travel switch 761 (for example, inductive connection) to control the three-way baffle 73 to stop rotating. By using the cooperation of the travel switch 761 and the limit rod 745, when the three-way baffle 73 rotates to the required working condition, it can be timely controlled to stop rotating to avoid the influence caused by misalignment.

[0049] In order to avoid clogging of the three-way baffle 73, refer to Figure 4 and Fig. 9In the embodiment of the present disclosure, the transition device for coal transportation may also include a shaking assembly 75 for shaking off the coal on the three-way baffle 73. The shaking assembly 75 may include: a rapper 751, installed on the outer side of the first baffle 731; two fixing seats 754, respectively fixed to the side walls of the three-way pipe 72, and the two fixing seats 754 may be respectively located on the lower side of the corresponding bearing seat 742; a plurality of shock-absorbing springs 752, installed between the corresponding fixing seats 754 and the bearing seat 742 (which may be fixed by a plurality of bolts 755); and a plurality of pressure sensors 753, installed on the corresponding shock-absorbing springs 752, for controlling the rapper 751 to work when the measured value is greater than the preset value. The present disclosure does not limit the preset value, and it can be adaptively designed according to the actual situation. With such a design, during normal operation, the three-way baffle 73 can achieve a small vibration up and down through the shock-absorbing spring 752 to reduce the probability of coal blockage (at this time, the rapper 751 does not work). It should be noted that in this case, the bearing seat 742 is movably installed on the tube wall of the three-way pipe 72 to allow the three-way baffle 73 to press the bearing seat 742 downward through the rotating shaft 741 to compress the shock-absorbing spring 752. When the transition device stops moving, the pressure sensor 753 feeds back the weight difference of the three-way baffle 73 before and after operation to determine whether there is coal accumulation on the three-way baffle 73 after operation. If the detection value exceeds the preset range, the rapper 751 is started to vibrate and clean the coal accumulation on the three-way baffle 73. When the rapper 751 cannot be cleaned after operation, it is directly fed back to the control room (not shown in the figure) for manual coal cleaning, thereby avoiding coal accumulation on the three-way baffle 73 and improving the overall work efficiency.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A transition device for coal transportation, connected between upstream transportation equipment and downstream transportation equipment, characterized in that: include: The collecting part is constructed as a shell-like structure having a first feed inlet and a first discharge inlet, wherein the first feed inlet is used to receive the coal from the upstream transportation equipment; A three-way pipe having a second feed port, a second discharge port and a third discharge port, wherein the second feed port is connected to the first discharge port, and the second discharge port and the third discharge port are respectively used to transport the coal to the downstream transportation equipment; A three-way baffle installed in the three-way pipe to selectively connect the second feed port to the second discharge port or the third discharge port; as well as A guiding baffle is arranged in the collecting part, and is used for guiding the coal from the first feed port to flow out from the first discharge port, and then flow to the flushing area of ​​the three-way baffle through the second feed port.

2. The transition device for coal transportation according to claim 1, characterized in that: The guide baffle is constructed as a groove with a flat U-shaped cross section and extending in the height direction, wherein the opening end of the groove faces the first feed port, and the first discharge port is located at the lower side of the groove.

3. The transition device for coal transportation according to claim 2, characterized in that: A plurality of connecting plates are formed on the back side of the guide baffle, and connecting holes are respectively formed at positions close to the upper side of the plurality of connecting plates. The transition device further includes: Two lifting assemblies are respectively installed on the outer wall of the collecting portion and located on both sides of the guiding baffle; A straight rod passes through the plurality of connecting holes in sequence, and both ends of the straight rod are respectively connected to the corresponding lifting components, so that the height of the guide baffle can be adjusted through the lifting components; and The telescopic assembly is hinged to a position near the lower end of the back side of the guide baffle, so that the telescopic assembly drives the guide baffle to rotate around the straight rod when telescoping.

4. The transition device for coal transportation according to claim 3, characterized in that: The telescopic assembly comprises: A hinge seat is installed on the back side of the guide baffle near the lower end; A hinged member, hinged to the hinge seat; A sealing seat, installed at a position on the outside of the collecting portion opposite to the hinged member; Two brackets are installed at intervals on both sides of the sealing seat; An adjustment shaft, hinged between the two brackets; A screw, one end of which passes through the adjusting shaft, the sealing seat and the side wall of the collecting portion in sequence and is rotatably connected to the hinged member; a locking nut, screwed onto the outer side of the screw and abutting against a side of the adjusting shaft away from the sealing seat; and A hand wheel is connected to the other end of the screw rod.

5. The transition device for coal transportation according to claim 3, characterized in that: The collecting portion is formed with an adjustment slot for the straight rod to extend out, and each of the lifting assemblies comprises: A frame fixed to a position of the outer wall of the collecting portion corresponding to the adjustment groove, the frame comprising two vertical bars and two horizontal bars, and the two vertical bars respectively have a plurality of first adjustment holes arranged in sequence in the up-down direction; a mounting frame, mounted on a side of the frame away from the collecting portion and used to fix the ends of the straight rods, wherein positions of the mounting frame corresponding to the two vertical rods are respectively provided with a plurality of second adjustment holes corresponding to the corresponding first adjustment holes; and A plurality of mounting pins are used to be inserted into the corresponding second adjustment holes and the first adjustment holes to fix the mounting bracket to the frame.

6. The transition device for coal transportation according to claim 1, characterized in that: It also includes a guide dust-proof pipe connected between the first discharge port and the second feed port, and the guide dust-proof pipe is used to guide the coal to the upper end opening of the three-way baffle.

7. The transition device for coal transportation according to claim 1, characterized in that: The three-way baffle comprises: First baffle; Two second baffles, respectively connected to two ends of the first baffle; two third baffles, respectively connected to one end of the corresponding second baffle away from the first baffle, the third baffles being constructed in a fan shape; and A reinforcing rod connected between the two third baffles, The first baffle, the two second baffles and the two third baffles form a U-shaped structure, the angle between the first baffle and the second baffle is greater than 120°, and the angle between the second baffle and the third baffle is greater than 120°.

8. The transition device for coal transportation according to claim 7, characterized in that: It also includes a driving assembly for driving the three-way baffle to rotate, and the driving assembly includes: Two bearing seats are respectively fixed to the outer tube wall of the three-way pipe and are located on both sides of the three-way baffle; Two rotating shafts, one end of each rotating shaft is rotatably connected to the corresponding bearing seat, and the other end passes through the three-way pipe and is connected to the center of the corresponding third baffle; a crank connected to the end of any of the shafts near the middle; and A push rod has one end connected to the end of the crank to push the crank to drive the rotating shaft to rotate.

9. The transition device for coal transportation according to claim 8, characterized in that: It also includes a limit assembly for limiting the rotation of the crank, and the limit assembly includes: Two mounting seats, respectively mounted on the pipe wall of the tee pipe, and the mounting seats are provided with limiting grooves; and Two travel switches are respectively clamped in the corresponding limit slots, and the travel switches at least partially extend out of the limit slots. Wherein, one end of the crank away from the push rod is used as a limit rod, so that when the three-way baffle is rotated into place, the limit rod is connected to the corresponding travel switch to control the three-way baffle to stop rotating.

10. The transition device for coal transportation according to claim 8, characterized in that: It also includes a material shaking assembly for shaking off the coal on the three-way baffle, and the material shaking assembly includes: A rapper, mounted on the outer side of the first baffle; Two fixing seats are respectively fixed to the side walls of the three-way pipe, and the two fixing seats are respectively located at the lower sides of the corresponding bearing seats; A plurality of shock absorbing springs are installed between the corresponding fixing seats and the bearing seats; and A plurality of pressure sensors are installed on the corresponding damping springs to control the operation of the rapper when the measured value is greater than a preset value.

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