Cooling and dust removal device for air outlet of TBM dust removal fan

Abstract

The invention discloses a TBM dust removal fan air outlet cooling and dust removal device, and relates to the technical field of dust removal fan external auxiliary devices. A conical sleeve is integrally formed and arranged on a rear end opening of an air outlet sleeve, and a mounting frame is fixedly arranged on the inner side wall of the conical sleeve; the two mounting shafts are arranged on the front inner side wall and the rear inner side wall of the mounting frame in a bilateral symmetry mode through bearings in a screwed connection mode, the multiple supporting frames in one set are fixedly arranged on the mounting shafts in an equal-angle distribution mode, the atomizing nozzles are arranged at the ends, away from the mounting shafts, of the supporting frames, the base is arranged behind the connecting sleeve, and the base plate is fixedly arranged outside the base in a sleeving mode; the connecting plate is sleeved and fixed on the air outlet sleeve; according to the device, the conical structure and the two-section type connecting structure are arranged, so that the device can be in butt joint with air outlets of dust removal fans of different models, a plurality of groups of atomizers capable of swinging are further arranged in the conical structure of the device, and therefore covering spraying aiming at the inner section of the conical structure is achieved, and cooling and dust falling of air blown out of the fans are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of external auxiliary devices for dust removal fans, and in particular to a cooling and dust removal device for an air outlet of a TBM dust removal fan. Background Art

[0002] TBM equipment is suitable for tunnel excavation in hard rock formations. It includes a shield function and can carry out support installation while excavating. Since the working head of the TBM will generate a large amount of dust during excavation, a dust removal fan will be installed in the middle and rear section of the equipment to reduce dust. The existing dry dust collector is equipped with a filter at the front end of the fan, but it has obvious disadvantages, that is, if the filter is not cleaned for a long time, a small amount of dust will pass through and be blown away by the fan, and the fan will generate a lot of heat when working, which makes the working environment of the staff in the rear section space poor; there is an auxiliary structure for the dust removal fan, which is equipped with a support rod at the outlet end of the fan, and then an atomizer is arranged on the support rod, and water mist is sprayed by the atomizer to achieve cooling, but the atomizing device of this structure has a simple structure and is installed only by a few connecting rods. In addition, the atomizer is too concentrated, which makes the cooling and dust reduction effect in some areas poor. Therefore, it is necessary to design and optimize new equipment for cooling and dust reduction of the fan. Summary of the Invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a TBM dust removal fan outlet cooling and dust removal device, which realizes that the device can be docked on the air outlet of dust removal fans of different models by setting a conical structure and a two-stage connection structure, and then a swingable array atomizer is set in the conical structure of the device, so as to achieve covering spray on the cross section inside the conical structure, thereby achieving cooling and dust reduction of the air blown out of the fan.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] It includes the air outlet sleeve; it also includes:

[0006] The conical sleeve is integrally formed and arranged on the rear port of the air outlet sleeve, and the rear port of the conical sleeve is smaller than the front port of the conical sleeve;

[0007] A connecting sleeve, the connecting sleeve is integrally formed and arranged on the rear end of the tapered sleeve;

[0008] A spray mechanism, wherein the spray mechanism is arranged in the conical sleeve;

[0009] The connecting mechanism is arranged on the air outlet sleeve.

[0010] Preferably, the spray mechanism comprises:

[0011] A mounting frame, the mounting frame being fixedly mounted on the inner side wall of the conical sleeve;

[0012] The mounting shafts are two and symmetrically connected to the front and rear inner walls of the mounting frame through bearings, and the mounting shafts and the tapered sleeve are coaxially arranged;

[0013] Support frames, wherein the support frames are grouped together and arranged on two mounting shafts, and the support frames in a group are fixedly arranged on the mounting shafts at equal angles;

[0014] The atomizing nozzle is arranged on one end of the support frame away from the installation axis, and the outlet directions of the atomizing nozzles on the front and rear groups of support frames are arranged in opposite directions.

[0015] Preferably, a support shaft is rotatably mounted on one end of the support frame away from the mounting shaft through a bearing, the atomizing nozzle is fixedly mounted on the support shaft, a connecting pipe is movably mounted on the mounting frame, and the connecting pipe passes through the mounting frame and is mounted on the side plate of the conical sleeve.

[0016] Preferably, ring frames are fixedly provided on the front and rear side walls of the mounting frame, a stepping wheel is fixedly provided on the support shaft, and the stepping wheel is movably supported on the outer side wall of the ring frame, a driving shaft is rotated on the mounting frame through a bearing, and the driving shaft is rotated and passed through the side wall of the tapered sleeve through the bearing, the driving shaft and the mounting shafts on the front and rear sides are connected to each other through a bevel gear set, a driving motor is provided on the side of the tapered sleeve, and the output shaft of the driving motor is connected to the driving shaft.

[0017] Preferably, the connecting mechanism comprises:

[0018] The base is arranged behind the connecting sleeve, and the inner diameter of the base is larger than the outer diameter of the air outlet sleeve;

[0019] A substrate, wherein the substrate is fixedly mounted on the outside of the base;

[0020] A connecting plate, wherein the connecting plate is sleeved and fixed on the air outlet sleeve;

[0021] Connecting bolts, which are multiple and pass through the four corners of the connecting plate, and the rear ends of the connecting bolts pass through the four corners of the base plate;

[0022] The clamping assembly is arranged on the base plate.

[0023] Preferably, the clamping assembly comprises:

[0024] Clamping frames, which are multiple and are respectively rotated on the side and rear side walls of the base plate through rotating shafts;

[0025] A supporting threaded sleeve, wherein the supporting threaded sleeve is fixedly arranged on the base plate and is arranged in front of the clamping frame;

[0026] A supporting threaded rod, wherein the supporting threaded rod is threadably connected to and inserted into the supporting threaded sleeve;

[0027] The support pin rod is screwed on the rear end of the support threaded rod through a bearing, and the support pin rod is slidably arranged in the clamping frame.

[0028] Preferably, a guide thread sleeve is fixedly provided on the base plate behind the driving motor, a guide thread rod is inserted into the guide thread rod through threaded connection, and a supporting ball head is fixedly provided at one end of the guide thread rod behind the base plate.

[0029] Preferably, a connecting frame is fixedly provided on the connecting plate, and several air guide plates are provided in front of the air outlet sleeve, and the upper and lower ends of the air guide plates are respectively fixedly provided on the upper and lower side plates of the connecting frame, and the side surface of the air guide plate is set at an angle to the axis of the air outlet sleeve, and the air guide plates are set in parallel.

[0030] Preferably, a lifting guide rod is fixedly provided on the connecting frame, a lifting guide seat is movably provided on the lifting guide rod, a lifting frame is fixedly provided on the lifting guide seat, a scraper is fixedly provided on the lifting frame, and the scraper is movably supported on the side surface of the air guide plate, a screw rod pair is fixedly provided on the connecting frame, and the lifting guide seat is screwed onto the screw of the screw rod pair through a threaded connection.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] This solution installs a spray device with several atomizing nozzles at the outlet of the fan. The atomizing nozzles in the device are multiple and can swing and move. The air blown by the fan passes through the conical sleeve and is cooled and dusted by the sprayed water mist.

[0033] This solution is based on the different models of the fan outlet end. A base and a base plate are set in this device, and a connecting plate is set on the air outlet sleeve. A clamping frame and a ball head pushed by a guide threaded rod are set on the base plate to achieve the installation of the base plate on the fan for the installation of the air outlet sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention.

[0035] Figure 2 yes Figure 1 Left front side view.

[0036] Figure 3 yes Figure 1 Lower right side view.

[0037] Figure 4 yes Figure 1 Left rear view.

[0038] Figure 5 yes Figure 1 Right rear view.

[0039] Figure 6 It is a structural schematic diagram of the conical sleeve and the spray mechanism in the present invention.

[0040] Figure 7 It is a structural schematic diagram of the air outlet sleeve, the conical sleeve and the connecting sleeve in the present invention.

[0041] Figure 8 It is a structural schematic diagram of the mounting frame, support frame and atomizing nozzle in the present invention.

[0042] Description of reference numerals:

[0043] Air outlet sleeve 1, conical sleeve 2, connecting sleeve 3, spray mechanism 4, mounting frame 4-1, mounting shaft 4-2, support frame 4-3, atomizing nozzle 4-4, connecting mechanism 5, base 5-1, base plate 5-2, connecting plate 5-3, connecting bolt 5-4, clamping assembly 6, clamping frame 6-1, supporting threaded sleeve 6-2, supporting threaded rod 6-3, supporting pin rod 6-4, support shaft 7, connecting pipe 8, ring frame 9, stepping wheel 10, drive shaft 11, drive motor 12, guide threaded sleeve 13, guide threaded rod 14, ball head 15, connecting frame 16, air guide plate 17, lifting guide rod 18, lifting guide seat 19, lifting frame 20, scraper 21, screw pair 22. DETAILED DESCRIPTION

[0044] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments described are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0045] like Figure 1-8 As shown, this specific implementation adopts the following technical solutions:

[0046] This specific embodiment includes an air outlet sleeve 1, a conical sleeve 2, and a connecting sleeve 3, wherein the conical sleeve 2 is integrally formed and arranged on the rear port of the air outlet sleeve 1, and the rear port of the conical sleeve 2 is smaller than its front port, and the connecting sleeve 3 is integrally formed and arranged on the rear port of the conical sleeve 2; a spray mechanism 4 is provided in the conical sleeve 2, so that the spray mechanism 4 can remove dust and cool the airflow passing through the conical sleeve 2 by using water mist; a connecting mechanism 5 is provided on the air outlet sleeve 1, so that the device can be installed on the fan through the connecting mechanism 5, and a clamping assembly 6 is provided on the connecting mechanism 5, so that the device can be clamped and installed on the fan specifically through the clamping assembly 6;

[0047] The spray mechanism 4 includes two groups of support frames 4-3 and two groups of atomizing nozzles 4-4. A mounting frame 4-1 is fixedly provided on the inner wall of the conical sleeve 2, and the interior of the mounting frame 4-1 is a cavity setting. A connecting pipe 8 is movably inserted into the cavity of the mounting frame 4-1, and the connecting pipe 8 passes through the side wall of the conical sleeve 2 and is connected to the external water source. The front and rear side walls of the mounting frame 4-1 are respectively provided with mounting shafts 4-2 through bearings. The two groups of support frames 4-3 are respectively fixed on the mounting shafts 4-2 on the front and rear sides. A group of support frames 4-3 has three and is set at equal angles. A support shaft 7 is rotated on the end of the support frame 4-3 through a bearing. The atomizing nozzle 4-4 is fixed on the support shaft 7. -1 is fixedly provided with a ring frame 9, and a stepping wheel 10 is fixedly provided on the support shaft 7. The stepping wheel 10 is movably abutted against the outer wall of the ring frame 9, so that when the support frame 4-3 rotates, the stepping wheel 10 is driven to slide on the ring frame 9, thereby driving the support shaft 7 to rotate. A driving shaft 11 is screwed through the side plate of the tapered sleeve 2 through a bearing, and the inner end of the driving shaft 11 is screwed on the mounting frame 4-1 through a bearing. The driving shaft 11 is connected to the mounting shafts 4-2 on both sides through a bevel gear set, so that the driving shaft 11 drives the front and rear mounting shafts 4-2 to rotate in opposite directions. A driving motor 12 is provided on the outer side of the tapered sleeve 2, and the output shaft of the driving motor 12 is connected to the driving shaft 11 in a transmission manner;

[0048] The connecting mechanism 5 includes a base plate 5-2 and a connecting plate 5-3. A base 5-1 is provided at the rear of the connecting sleeve 3. The base plate 5-2 is sleeved on the base 5-1. The air outlet sleeve 1 is sleeved with a connecting plate 5-3. A connecting bolt 5-4 is movably inserted into the connecting plate 5-3. The rear end of the connecting bolt 5-4 is inserted into the base plate 5-2. A clamping frame 6-1 is rotated on the upper and lower sides and the rear side wall of the left side of the base plate 5-2 through a rotating shaft. A supporting threaded sleeve 6-2 is fixedly provided on the side of the base plate 5-2 in a one-to-one correspondence with the clamping frame 6-1. A supporting threaded rod 6- 3. The rear end of the support threaded rod 6-3 is rotated with a support pin 6-4 through a bearing, and the support pin 6-4 is movably inserted in the clamping frame 6-1. By pushing the support threaded rod 6-3 backward, the clamping frame 6-1 is clamped. A guide threaded sleeve 13 is fixedly provided on the right side of the base plate 5-2 behind the drive motor 12. A guide threaded rod 14 is screwed through the guide threaded sleeve 13 through a threaded connection. A ball head 15 is fixedly provided on the left end of the guide threaded rod 14. By cooperating with the clamping frame 6-1 and the ball head 15, the base 5-1 and the base plate 5-2 are clamped and fixed to the casing of the fan.

[0049] A connecting frame 16 is fixedly provided on the air outlet sleeve 1, and several air guide plates 17 are provided in front of the air outlet sleeve 1, and the upper and lower ends of the air guide plate 17 are respectively fixed on the upper and lower side plates of the connecting frame 16, and the front side of the air guide plate 17 is tilted to the right. A lifting guide rod 18 is fixedly provided on the connecting frame 16, and a lifting guide seat 19 is movably provided on the lifting guide rod 18. A lifting frame 20 is fixedly provided on the lifting guide seat 19, and a scraper 21 is fixedly provided on the lifting frame 20, and the scraper 21 is movably abutted against the side wall of the air guide plate 17. A screw pair 22 is fixedly provided on the connecting frame 16, and the lifting guide seat 19 is screwed on the screw of the screw pair 22.

[0050] When using this device, connect this device to the air outlet of the dust removal fan, first put the base 5-1 on the air outlet of the fan, then rotate the support threaded rod 6-3 to move backward, so that the support threaded rod 6-3 pushes the support pin rod 6-4 backward, thereby pushing the clamping frame 6-1 to rotate through the support pin rod 6-4, and the clamping frame 6-1 is pressed against the outer wall of the fan casing, then rotate the guide threaded rod 14 so that the guide threaded rod 14 drives the ball head 15 to move, and the ball head 15 is pressed against the outer wall of the fan casing, thereby clamping the base 5-1 and the base plate 5-2 firmly. Fix it on the fan, then insert the connecting sleeve 3 into the air outlet of the fan, so that the conical sleeve 2 is inserted into the air outlet of the fan, and the outer wall of the conical sleeve 2 is against the side of the air outlet of the fan, then pass the connecting bolt 5-4 through the connecting plate 5-3 and the base plate 5-2 from front to back, so that the cap end of the connecting bolt 5-4 is against the front side wall of the connecting plate 5-3, tighten the nut of the connecting bolt 5-4 on the screw rod, so that the nut of the connecting bolt 5-4 is against the rear side wall of the base plate 5-2, that is, the connection and fixation between the connecting plate 5-3 and the base plate 5-2 are realized, that is, the conical sleeve 2 and the air outlet sleeve 1 are installed on the air outlet of the fan;

[0051] The fan sends out the treated air, connects to the external water source through the connecting pipe 8, and sends water to the atomizing nozzle 4-4 to form a water mist spray. The driving motor 12 drives the driving shaft 11 to rotate back and forth, and the driving shaft 11 drives the mounting shaft 4-2 to rotate back and forth through the bevel gear set, so that the mounting shaft 4-2 drives the support frame 4-3 to swing back and forth, and the support frame 4-3 drives the support shaft 7 and the atomizing nozzle 4-4 thereon to swing. The support shaft 7 slides on the ring frame 9 through the stepping wheel 10, thereby driving the support shaft 7 to rotate back and forth, so that the support shaft 7 drives the atomizing nozzle 4-4 to swing back and forth, so that the support frame 4-3 swings and the atomizing nozzle 4-4 swings, so as to form a water mist curtain that completely covers the cross section in the conical sleeve 2, thereby cooling and removing dust from the ejected airflow by the water mist;

[0052] The air flow containing water mist is sent forward from the connecting sleeve 3 and sprayed on the air guide plate 17, so that the air flow is discharged through the gap of the air guide plate 17. A large amount of water mist and the dust slurry formed in the air flow adhere to the air guide plate 17, and the lifting guide seat 19 is driven to reciprocate up and down by the screw pair 22. The lifting guide seat 19 slides on the lifting guide rod 18 and drives the lifting frame 20 to reciprocate up and down. The lifting frame 20 drives the scraper 21 to move, and the scraper 21 scrapes off the mud adhering to the side wall of the air guide plate 17.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] 1. This device is provided with a base plate 5-2 behind the connecting sleeve 3 through the base 5-1. A clamping frame 6-1 is provided on the base plate 5-2 and is driven and rotated by a supporting threaded rod 6-3. A ball head 15 is provided and is driven by a guide threaded rod 14. The base plate 5-2 is installed on the fan outlet, and the conical sleeve 2 and the air outlet sleeve 1 are installed through connecting bolts.

[0055] 2. In this device, a mounting shaft 4-2 is set in the conical sleeve 2 through the mounting frame 4-1, a support shaft 7 is set on the mounting shaft 4-2 through the support frame 4-3, and an atomizing nozzle 4-4 is set through the support shaft 7. A ring frame 9 is set on the mounting frame 4-1 and cooperates with the stepping wheel 10 on the support shaft 7 to realize the swing of the support frame 4-3 driven by the driving motor 12 and the swing of the atomizing nozzle 4-4 at the same time, thereby forming a water mist curtain in the conical sleeve 2 to cool down and reduce dust on the air flow blown by the fan.

[0056] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A TBM dust removal fan outlet cooling and dust removal device, comprising an air outlet sleeve (1); characterized in that: It also contains: A conical sleeve (2), wherein the conical sleeve (2) is integrally formed and arranged on the rear port of the air outlet sleeve (1), and the rear port of the conical sleeve (2) is smaller than the front port of the conical sleeve (2); A connecting sleeve (3), wherein the connecting sleeve (3) is integrally formed and arranged on the rear end of the tapered sleeve (2); A spray mechanism (4), wherein the spray mechanism (4) is arranged in the conical sleeve (2); A connecting mechanism (5) is provided on the air outlet sleeve (1).

2. The TBM dust removal blower outlet cooling and dust removal device according to claim 1, characterized in that: The spray mechanism (4) comprises: A mounting frame (4-1), wherein the mounting frame (4-1) is fixedly arranged on the inner side wall of the conical sleeve (2); The mounting shafts (4-2) are two and symmetrically arranged on the front and rear inner walls of the mounting frame (4-1) through bearings, and the mounting shafts (4-2) and the tapered sleeve (2) are arranged coaxially; Support frames (4-3), wherein several support frames (4-3) form a group and are arranged on two installation shafts (4-2), and several support frames (4-3) in a group are fixedly arranged on the installation shafts (4-2) at equal angles; The atomizing nozzle (4-4) is arranged on one end of the support frame (4-3) away from the installation shaft (4-2), and the outlet directions of the atomizing nozzle (4-4) on the front and rear support frames (4-3) are arranged in opposite directions.

3. The TBM dust removal blower outlet cooling and dust removal device according to claim 2, characterized in that: A support shaft (7) is rotatably provided on one end of the support frame (4-3) away from the mounting shaft (4-2) through a bearing, and the atomizing nozzle (4-4) is fixedly provided on the support shaft (7). A connecting pipe (8) is movably provided on the mounting frame (4-1), and the connecting pipe (8) passes through the mounting frame (4-1) and is then provided on the side plate of the conical sleeve (2).

4. The TBM dust removal blower outlet cooling and dust removal device according to claim 3 is characterized by: The mounting frame (4-1) is fixedly provided with a ring frame (9) on both the front and rear side walls, a stepping wheel (10) is fixedly provided on the support shaft (7), and the stepping wheel (10) is movably supported on the outer side wall of the ring frame (9), a driving shaft (11) is rotatably provided on the mounting frame (4-1) through a bearing, and the driving shaft (11) is rotatably connected and inserted into the side wall of the tapered sleeve (2) through a bearing, the driving shaft (11) and the mounting shafts (4-2) on the front and rear sides are connected in transmission through a bevel gear set, a driving motor (12) is provided on the side of the tapered sleeve (2), and the output shaft of the driving motor (12) is connected in transmission with the driving shaft (11).

5. The TBM dust removal blower outlet cooling and dust removal device according to claim 1, characterized in that: The connecting mechanism (5) comprises: A base (5-1), wherein the base (5-1) is arranged behind the connecting sleeve (3), and the inner diameter of the base (5-1) is larger than the outer diameter of the air outlet sleeve (1); A substrate (5-2), wherein the substrate (5-2) is sleeved and fixed on the outside of the base (5-1); A connecting plate (5-3), wherein the connecting plate (5-3) is sleeved and fixed on the air outlet sleeve (1); Connecting bolts (5-4), the connecting bolts (5-4) are in plurality and are inserted through the four corners of the connecting plate (5-3), and the rear ends of the connecting bolts (5-4) are inserted through the four corners of the base plate (5-2); A clamping assembly (6), wherein the clamping assembly (6) is arranged on a base plate (5-2).

6. The TBM dust removal blower outlet cooling and dust removal device according to claim 5, characterized in that: The clamping assembly (6) comprises: Clamping frames (6-1), the clamping frames (6-1) are multiple and are respectively rotated on the side and rear side walls of the base plate (5-2) through rotating shafts; A supporting threaded sleeve (6-2), wherein the supporting threaded sleeve (6-2) is fixedly arranged on the base plate (5-2), and the supporting threaded sleeve (6-2) is arranged in front of the clamping frame (6-1); A supporting threaded rod (6-3), wherein the supporting threaded rod (6-3) is inserted into the supporting threaded sleeve (6-2) through a threaded connection; A support pin rod (6-4) is screwed onto the rear end of the support threaded rod (6-3) via a bearing, and the support pin rod (6-4) is slidably arranged in the clamping frame (6-1).

7. The TBM dust removal blower outlet cooling and dust removal device according to claim 6, characterized in that: A guide thread sleeve (13) is fixedly provided on the base plate (5-2) at the rear of the driving motor (12); a guide thread rod (14) is inserted into the guide thread rod (14) through a screw thread connection; and a supporting ball head (15) is fixedly provided at one end of the guide thread rod (14) at the rear of the base plate (5-2).

8. The TBM dust removal blower outlet cooling and dust removal device according to claim 7, characterized in that: A connecting frame (16) is fixedly provided on the connecting plate (5-3), and a plurality of air guide plates (17) are provided in front of the air outlet sleeve (1), and the upper and lower ends of the air guide plates (17) are respectively fixedly provided on the upper and lower side plates of the connecting frame (16), and the side surfaces of the air guide plates (17) are arranged at an angle with the axis of the air outlet sleeve (1), and the air guide plates (17) are arranged in parallel.

9. The TBM dust removal blower outlet cooling and dust removal device according to claim 8, characterized in that: A lifting guide rod (18) is fixedly provided on the connecting frame (16), a lifting guide seat (19) is movably sleeved on the lifting guide rod (18), a lifting frame (20) is fixedly provided on the lifting guide seat (19), a scraper (21) is fixedly provided on the lifting frame (20), and the scraper (21) is movably abutted against the side surface of the air guide plate (17), a screw rod pair (22) is fixedly provided on the connecting frame (16), and the lifting guide seat (19) is sleeved on the screw rod of the screw rod pair (22) through a threaded connection.

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