CN219155545U

CN219155545U - Limestone conveying device for producing cement

Info

Publication number: CN219155545U
Application number: CN202320117386.9U
Authority: CN
Inventors: 徐应先; 吴国明; 潘海敏; 王建雄; 张庆国
Original assignee: Guangxi Jinli Cement Co ltd
Current assignee: Guangxi Jinli Cement Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-09
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to the technical field of cement production equipment, in particular to a limestone conveying device for producing cement, which comprises a frame, a conveying belt, a gravity tensioning and adjusting mechanism and an active tensioning mechanism, wherein a plurality of carrier rollers are arranged on the frame; the conveying belt is wound on the carrier roller; the gravity tensioning adjusting mechanism is arranged on the frame and used for pulling and adjusting the tightness of the conveying belt; the driving tensioning mechanism comprises a winch, a tensioning vehicle and a driving roller rotatably mounted on the tensioning vehicle, the conveying belt is wound on the driving roller, the tensioning vehicle is slidably mounted on a sliding rail on the frame, and the winch is connected with the tensioning vehicle through a first steel wire rope. The limestone conveying device is simple in structure and can adapt to different load conveying amounts.

Description

Limestone conveying device for producing cement

Technical Field

The utility model relates to the technical field of cement production equipment, in particular to a limestone conveying device for producing cement.

Background

The fired limestone in the raw materials for cement production is one of the main raw materials, and in the existing dry production line, limestone ore is often conveyed to a crushing device through a conveying belt for crushing and grinding, and then conveyed to a kiln for calcination to obtain clinker.

In the whole limestone ore conveying process, the whole weight of the limestone is heavy, the conveying distance is long, and the limestone easily rolls in the conveying process, so that the load of the conveying belt is continuously changed. Aiming at the situation, the Chinese patent publication No. CN203767476U discloses an ore belt conveyor tensioning mechanism which automatically adjusts and tightens a conveying belt by using a counterweight, thereby solving the problem of automatic load adaptation of the conveying belt. However, in the technical scheme, the whole conveyor belt is regulated only by the balance weight on the tensioning mechanism, so that the conveyor belt generates different degrees of looseness or tensioning due to different sizes and weights of limestone when the conveyor belt conveys limestone raw ores. The tensioning mechanism is small in adjusting range and is only suitable for the condition of short-distance material conveying, so that the conveying belt is locally overtightened or overtightened in the conveying process, conveying resistance is increased, and transmission efficiency is poor. The load weight of the conveying belt is not fixed, and the weight amount on the tensioning mechanism is basically fixed, so that the position of the tensioning mechanism is changed up and down too much, the limit of the movement stroke is easily exceeded, and finally the ground or other equipment can be touched. In addition, the conveying distance of the conveying belt for conveying the limestone is relatively long, and meanwhile, the conveying load is large, so that the conveying belt is easy to deform and lengthen after long-term use, and the normal work of the tensioning mechanism can be influenced.

Disclosure of Invention

In order to overcome one of the defects in the prior art, the utility model aims to provide a limestone conveying device for producing cement, which has a simple structure and can adapt to different load conveying amounts.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

a limestone conveying device for producing cement comprises a frame, a conveying belt, a gravity tensioning adjusting mechanism and an active tensioning mechanism, wherein a plurality of carrier rollers are arranged on the frame; the conveying belt is wound on the carrier roller; the gravity tensioning adjusting mechanism is arranged on the frame and used for pulling and adjusting the tightness of the conveying belt; the driving tensioning mechanism comprises a winch, a tensioning vehicle and a driving roller rotatably mounted on the tensioning vehicle, the conveying belt is wound on the driving roller, the tensioning vehicle is slidably mounted on a sliding rail on the frame, and the winch is connected with the tensioning vehicle through a first steel wire rope.

Further, a fixing frame is arranged on the tensioning vehicle, and one end corresponding to the first steel wire rope is connected to the fixing frame.

Further, the active tensioning mechanism further comprises a plurality of supporting frames, supporting pulleys are arranged on the supporting frames, and the first steel wire ropes are wound on the supporting pulleys.

Further, be provided with drive frame and bogie in the frame, all be provided with the roller on drive frame and the bogie, the slide rail sets up the bogie is kept away from one side of drive frame, the conveyer belt is followed the direction of rotation and is walked around roller, driving roller on the drive frame with the roller of bogie in proper order.

Further, a belt supporting roller is arranged on the frame and is arranged on the area between the driving roller and the bogie.

Further, the gravity tensioning adjusting mechanism comprises a second steel wire rope, a tower, a movable pulley arranged on the top of the tower and a compression roller arranged on the bottom of the tower, two fixed pulleys are arranged on the frame, one end of the second steel wire rope is fixed on the frame, and the other end of the second steel wire rope sequentially bypasses the two fixed pulleys and is wound on the winch or a spring damping pulley wound on the frame; the tower is hooked on a second steel wire rope between the two fixed pulleys through the movable pulleys, and the press roller is always abutted against the conveying belt.

Further, a discharger is arranged on the output end of the conveyor belt on the frame.

Further, the discharger comprises a discharge hopper and a sweeper, wherein the discharge hopper is installed on the frame and used for receiving limestone output by the conveying belt, the sweeper is arranged in the discharge hopper, and the sweeper is used for sweeping the back surface of the conveying belt.

Further, the output end and the input end of the conveying belt are respectively provided with a driving roller, the driving rollers are rotatably installed on the frame, a permanent magnet motor is arranged on the frame, and the output end of the permanent magnet motor is connected with the driving rollers.

Further, a plurality of elastic rollers are arranged on the frame.

Compared with the prior art, the utility model has the beneficial effects that:

according to the limestone conveying device for producing cement, the gravity tensioning adjusting mechanism is designed on the basis of a traditional conveying belt, the tightness of the whole conveying belt can be automatically adjusted in a small range by using the counterweight, and the automatic adaptability of the whole conveying belt to conveying is improved. The tensioning degree of the conveying belt is adjusted by pulling the tensioning vehicle through the winch, and the capacity of actively adjusting the whole conveying belt is improved; and tensioning car slidable mounting can standardize the slip direction of tensioning car to a certain extent on the slide rail, avoids the conveyer belt to vibrate and lead to the tensioning car to take place the skew in carrying the in-process, guarantees the steady rotation of conveyer belt.

The utility model is described in further detail below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a portion of the structure of an embodiment of the present utility model;

FIG. 3 is a schematic view of a winding structure of a conveyor belt according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a gravity tension adjusting mechanism in an embodiment of the utility model.

Reference numerals illustrate:

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, a limestone conveyor for producing cement comprises a frame 10, a conveyor belt 20, a gravity tensioning adjustment mechanism 30 and an active tensioning mechanism 40, wherein a plurality of carrier rollers 11 are arranged on the frame 10; the conveyer belt 20 is wound on the carrier roller 11; a gravity tensioning adjustment mechanism 30 is mounted on the frame 10 and is used for pulling and adjusting the tightness of the conveying belt 20; the driving tensioning mechanism 40 comprises a winch 41, a tensioning car 42 and a driving roller 43 rotatably mounted on the tensioning car 42, the conveying belt 20 is wound on the driving roller 43, the tensioning car 42 is slidably mounted on the sliding rail 12 on the frame 10, and the winch 41 is connected with the tensioning car 42 through a first steel wire rope 44. In the actual use process, the gravity tensioning adjustment mechanism 30 is arranged in the middle of the conveying belt 20, and the arrangement mainly considers that the distance between the gravity tensioning adjustment mechanism 30 and the two ends of the conveying belt 20 is the same in the normal conveying process of the conveying belt 20, so that the tightness of the two ends of the conveying belt 20 can be effectively adjusted through the gravity tensioning adjustment mechanism 30, and the adjusted tightness is improved. The active tensioning mechanism 40 is disposed at the output end of the conveyor belt 20, and this design purpose is mainly that the conveyor belt 20 is easier to pull the conveyor belt 20 through the active tensioning mechanism 40 after the load of the conveyor belt 20 disappears after limestone is output, so as to reduce the difficulty of adjustment.

It should be noted that, in this application, the conveyor belt 20 is a conventional belt conveyor belt, and in order to avoid the limestone on the conveyor belt 20 falling, in one embodiment of this application, the idler roller 11 is disposed in a U shape, so that the limestone can be effectively borne.

Referring to fig. 1 and 2, in one embodiment of the present application, in order to improve conveying capability, a driving roller 21 is disposed at an output end and an input end of the conveying belt 20, the driving roller 21 is rotatably mounted on the frame 10, a permanent magnet motor 22 is disposed on the frame 10, and an output end of the permanent magnet motor 22 is connected to the driving roller 21. Wherein, the limestone is generally lifted and fed into the crusher to be crushed, and has a certain gradient, and at least two groups of permanent magnet motors 22 are arranged near the output end side of the conveyor belt 20 for driving the conveyor belt 20 together in order to ensure the conveying quality; and thus the permanent magnet motor 22 on the input side of the conveyor belt 20 only needs to be provided with one group, which can reduce the number of devices and the cost of the devices.

With further reference to fig. 1, in one embodiment of the present application, in order to facilitate the first wire rope 44 to pull the tensioning vehicle 42, a fixing frame 45 is disposed on the tensioning vehicle 42, and a corresponding end of the first wire rope 44 is connected to the fixing frame 45. Furthermore, in some modified embodiments, a pulley may be provided on the fixing frame 45, and the first wire rope 44 may be wound around the pulley, and one end of the first wire rope 44 is fixed on the frame 10, so that the traction force of the winch 41 may be reduced, thereby reducing the requirement of the winch 41.

Further, in order to avoid risk caused by shaking of the first wire rope 44 due to stress during operation, the active tensioning mechanism 40 further includes a plurality of supporting frames 46, supporting pulleys 47 are disposed on the supporting frames 46, the first wire rope 44 is wound on the supporting pulleys 47, and in addition, the supporting pulleys 47 also play a role in supporting the first wire rope 44, so that sagging of the first wire rope 44 due to self gravity is avoided.

In one embodiment, since the back surface of the conveyor belt 20 is pulled between the active tensioning mechanisms 40, and meanwhile, the running space of the active tensioning mechanisms 40 is relatively large, in order to realize steering of the conveyor belt 20, the frame 10 is provided with a transmission frame 13 and a bogie 14, both the transmission frame 13 and the bogie 14 are provided with rotating rollers 15, the sliding rail 12 is arranged on one side of the bogie 14 far away from the transmission frame 13, and the conveyor belt 20 sequentially bypasses the rotating rollers 15, the transmission rollers 43 and the rotating rollers 15 of the bogie 14 on the transmission frame 13 along the rotating direction. In practice, the transmission frame 13 and the bogie 14 may be designed in the same structure, but in the practical use process, the conveyor belt 20 needs to be suddenly stopped, and in order to brake the conveyor belt 20 better, in a modified embodiment of the present application, a brake may be provided on the transmission frame 13 or the rotating roller 15 of the bogie 14, so that the conveyor belt 20 may be braked effectively.

Further, in actual use, the tensioning carriage 42 pulls the conveyor belt 20 horizontally, but the conveyor belt 20 itself has a certain weight, and in order to avoid sagging of the conveyor belt 20 in the pulling portion and to affect normal conveyance, the frame 10 is provided with a belt supporting roller 17, and the belt supporting roller 17 is disposed in an area between the driving roller 43 and the bogie 14. In one embodiment, in order to avoid sagging of the conveyor belt 20 during rotation, a plurality of dancer rolls 19 are provided on the frame 10. The structures of the supporting belt roller 17 and the elastic roller 19 can be the same, so that the replacement of later parts is facilitated.

With further reference to fig. 1 and 4, in one embodiment of the present application, in order to provide an autonomous adjustment function for the conveyor belt 20 under a certain load, the gravity tension adjustment mechanism 30 includes a second wire rope 31, a tower 32, a movable pulley 33 disposed on the top of the tower 32, and a pressing roller 34 disposed on the bottom of the tower 32, two fixed pulleys 16 are disposed on the frame 10, one end of the second wire rope 31 is fixed on the frame 10, and the other end of the second wire rope 31 sequentially bypasses the two fixed pulleys 16 and is wound on the winch 41 or the spring damping pulley 18 wound on the frame 10; the tower 32 is hooked on a second steel wire rope 31 between the two fixed pulleys 16 through a movable pulley 33, and the pressing roller 34 is always pressed against the conveying belt 20. In fact, the movable end of the second wire 31 is in this application either wound on the winch 41 or on the spring damper pulley 18, which is in fact chosen according to the requirements. In this embodiment, the tower 32 is self-weight, and a counterweight may be disposed on the tower 32, which is selected according to actual use requirements.

Referring to fig. 4, the movable end of the second wire rope 31 is wound on the winch 41, so that the winch 41 can be effectively utilized to adjust the pressure applied by the pressing roller 34, and further adjust the tightness of the conveyer belt 20; by this arrangement, the applied force of the entire pressing roller 34 can be adjusted, which serves as a flexible adjustment. The movable end of the second wire rope 31 is wound on the spring damping pulley 18, so that the main acting length of the second wire rope 31 is basically fixed, the acting force exerted by the compression roller 34 is basically stable, and the acting force is the same as the technical scheme and the acting force disclosed in the patent CN 203767476U-an ore belt conveyor tensioning mechanism. However, in this application, in order to increase the length of the second wire rope 31 and to allow the gravity tension adjusting mechanism 30 to have a certain flexibility in operation, the spring damping pulley 18 is actually a winding wheel with a spring, so that it is possible to fix one end of the second wire rope 31 to a certain extent and to allow the length of the second wire rope 31 to occur to a certain extent to adapt to the operating state of the conveyor belt 20. Meanwhile, the second steel wire rope 31 can be kept in a tensioning state all the time, and the situation that the second steel wire rope 31 breaks when the conveyor belt 20 is subjected to severe load change is avoided.

With further reference to fig. 1, in one embodiment of the present application, a tripper 50 is provided on the frame 10 at the output end of the conveyor 20. Wherein the discharger 50 comprises a discharge hopper 51 and a sweeper 52, the discharge hopper 51 is mounted on the frame 10 and is used for receiving limestone outputted by the conveyor belt 20, the sweeper 52 is arranged in the discharge hopper 51, and the sweeper 52 is used for sweeping the back surface of the conveyor belt 20. In practice, sweeper 52 may be a conventional squeegee or a rotating brush structure.

The limestone conveying device for producing cement is provided with the gravity tensioning adjusting mechanism 30 on the basis of the traditional conveying belt 20, and the tightness of the whole conveying belt 20 can be automatically adjusted in a small range by using the counterweight, so that the automatic adaptability of the whole conveying belt 20 for conveying is improved. The tensioning device also utilizes the winch 41 to pull the tensioning car 42 to adjust the tension of the conveying belt 20, and improves the active adjustment capacity of the whole conveying belt 20; and tensioning car 42 slidable mounting can standardize the slip direction of tensioning car 42 to a certain extent on slide rail 12, avoids conveyer belt 20 vibration in the transportation process to lead to tensioning car 42 to take place the skew, guarantees the steady rotation of conveyer belt 20.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. A limestone conveyor for producing cement, comprising

A frame (10) on which a plurality of carrier rollers (11) are arranged;

a conveyor belt (20) wound around the carrier roller (11);

a gravity tension adjusting mechanism (30) which is arranged on the frame (10) and is used for pulling and adjusting the tightness of the conveying belt (20); a kind of electronic device with high-pressure air-conditioning system

The driving tensioning mechanism (40) comprises a winch (41), a tensioning car (42) and a driving roller (43) rotatably mounted on the tensioning car (42), the conveying belt (20) is wound on the driving roller (43), the tensioning car (42) is slidably mounted on a sliding rail (12) on the frame (10), and the winch (41) is connected with the tensioning car (42) through a first steel wire rope (44).

2. A limestone conveyor for producing cement according to claim 1, wherein: the tensioning vehicle (42) is provided with a fixing frame (45), and one end corresponding to the first steel wire rope (44) is connected to the fixing frame (45).

3. A limestone conveyor for producing cement according to claim 1, wherein: the active tensioning mechanism (40) further comprises a plurality of supporting frames (46), supporting pulleys (47) are arranged on the supporting frames (46), and the first steel wire ropes (44) are wound on the supporting pulleys (47).

4. A limestone conveyor for producing cement according to claim 1, wherein: be provided with transmission frame (13) and bogie (14) on frame (10), all be provided with roller (15) on transmission frame (13) and bogie (14), slide rail (12) set up one side that transmission frame (13) were kept away from to bogie (14), conveyer belt (20) are followed the direction of rotation and are walked around roller (15), driving roller (43) on transmission frame (13) and roller (15) of bogie (14) in proper order.

5. A limestone conveyor for producing cement according to claim 4, wherein: the machine frame (10) is provided with a supporting belt roller (17), and the supporting belt roller (17) is arranged on an area between the driving roller (43) and the bogie (14).

6. A limestone conveyor for producing cement according to any one of claims 1 to 5, wherein: the gravity tensioning adjustment mechanism (30) comprises a second steel wire rope (31), a tower (32), a movable pulley (33) arranged on the top of the tower (32) and a compression roller (34) arranged on the bottom of the tower (32), two fixed pulleys (16) are arranged on the frame (10), one end of the second steel wire rope (31) is fixed on the frame (10), and the other end of the second steel wire rope (31) sequentially bypasses the two fixed pulleys (16) and is wound on the winch (41) or a spring damping pulley (18) wound on the frame (10); the tower (32) is hooked on a second steel wire rope (31) between the two fixed pulleys (16) through a movable pulley (33), and the press roller (34) is always abutted against the conveying belt (20).

7. A limestone conveyor for producing cement according to any one of claims 1 to 5, wherein: and a discharger (50) is arranged on the output end of the conveyor belt (20) on the frame (10).

8. A limestone conveyor for producing cement according to claim 7, wherein: the discharger (50) comprises a discharge hopper (51) and a sweeper (52), the discharge hopper (51) is mounted on the frame (10) and used for receiving limestone output by the conveyor belt (20), the sweeper (52) is arranged in the discharge hopper (51), and the sweeper (52) is used for sweeping the back of the conveyor belt (20).

9. A limestone conveyor for producing cement according to any one of claims 1 to 5, wherein: the conveying belt is characterized in that a driving roller (21) is arranged at the output end and the input end of the conveying belt (20), the driving roller (21) is rotatably arranged on the frame (10), a permanent magnet motor (22) is arranged on the frame (10), and the output end of the permanent magnet motor (22) is connected with the driving roller (21).

10. A limestone conveyor for producing cement according to claim 8, wherein: a plurality of elastic rollers (19) are arranged on the frame (10).