Blowing trolley of bag-type dust collector

Abstract

The utility model relates to the technical field of auxiliary equipment for bag-type dust removal, in particular to a blowing trolley for a bag-type dust remover, and aims to solve the problems of non-uniform power transmission and derailment caused by chain transmission of the blowing trolley in the prior art. The injection trolley comprises a guide rail arranged at the top of the bag-type dust collector, an injection sliding trolley connected with the pulse air bag assembly is arranged on the guide rail in a sliding mode, a coding cable is installed on one side of the guide rail, and an induction antenna matched with the coding cable is installed on the injection sliding trolley. The blowing sliding trolley and the power driving device are integrated, and the power driving device slides on the guide rail along with the blowing sliding trolley. According to the utility model, non-contact absolute position detection is adopted, so that the precision and the stability of the injection trolley are improved, a long-distance transmission chain is omitted, the derailing risk is reduced, the service life is prolonged, the maintenance cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust removal auxiliary equipment, in particular to a bag dust collector blowing trolley. Background Art

[0002] The steel mill's bag dust collector uses a pulse air bag design for its jet dust removal. The bags are cleaned by a mobile jet trolley, and the flue gas temperature is used to maintain a constant temperature for the jet air source, reducing energy consumption. The jet air source temperature is kept as close to the flue gas temperature in the dust removal chamber as possible, preventing the cold air flow formed by the high-speed jet of the air source from forming a temperature difference with the hot air flow in the bag, causing condensation on the bag, and thus improving the service life and filtration efficiency of the filter bag.

[0003] In the existing technology, the blowing trolley relies on the power of an external motor to move back and forth in the static air chamber above the cloth bag. The moving position is controlled by the motor encoder. After reaching the specified position, the solenoid valve controls the release of compressed air in the air tank to clean the dust attached to the cloth bag.

[0004] However, the trolley, driven by a motor, is linked to a chain and gears at both ends. This chain transmits power and determines the travel distance. The problem is that the trolley's long operation leads to uneven power transmission due to chain installation accuracy and deformation. This deteriorates accuracy over long periods of operation, making the trolley prone to derailment. This poses a significant safety hazard and requires production line shutdowns for maintenance, which directly impacts the steel mill's production schedule and output. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a bag dust collector blowing trolley with higher precision and reliability, thereby ensuring overall production efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bag dust collector blowing trolley comprises a guide rail arranged on the top of the bag dust collector body, and a blowing sliding trolley connected to a pulse air bag assembly slides on the guide rail;

[0008] A coding cable is installed on one side of the guide rail, and an induction antenna adapted to the coding cable is installed on the blowing sliding carriage;

[0009] The blowing sliding carriage and its power driving device are integrated into one body, and the power driving device slides on the guide rail following the blowing sliding carriage.

[0010] Preferably, the blowing sliding carriage comprises a frame, a spray barrel is mounted on the frame, and a plurality of spray heads are provided at the bottom of the spray barrel;

[0011] The top of the spray barrel is connected to the pulse air bag assembly through an air pipe.

[0012] Preferably, one end of the air pipe is sealedly connected to the nozzle through a first joint, and the other end is sealedly connected to the air bag of the pulse air bag assembly through a second joint.

[0013] Preferably, a pulley block adapted to the guide rail is installed at the bottom of the frame.

[0014] Preferably, the inner diameter of the spray barrel is gradually changed from large to small from the end close to the first joint to the other end.

[0015] Preferably, the nozzles on the nozzle barrel are arranged to gradually change from large to small as the inner diameter of the nozzles changes.

[0016] Preferably, the output shaft of the power drive device is connected to the input shaft of the blowing sliding carriage via a gear transmission or a sprocket transmission.

[0017] The utility model includes but is not limited to the following beneficial effects:

[0018] This new system utilizes electromagnetic induction and Gray coding principles, combining a coding cable with an induction antenna to achieve contactless absolute position detection for the spraying sliding carriage. This method is unaffected by motor speed and accurately measures the actual position of the carriage, significantly improving positioning accuracy and stability.

[0019] At the same time, since the traditional long-distance transmission chain is eliminated, the problem of uneven power transmission caused by low chain installation accuracy or long-term deformation is reduced, the risk of trolley derailment is effectively prevented, the reliability of the entire system is enhanced, the safety hazards caused by trolley derailment are eliminated, and additional losses caused by downtime due to faults are avoided, which helps to improve overall production efficiency and extend the service life of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall side structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall top view of the structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the front view of the blowing sliding trolley;

[0023] Figure 4 It is a side view structural diagram of the blowing sliding trolley.

[0024] The reference numerals involved in the accompanying drawings are:

[0025] 100. Blowing sliding trolley; 1. Bag filter body; 2. Guide rail; 3. Frame; 31. Pulley block; 4. Spray gun; 5. Spray nozzle; 6. Air pipe; 61. First connector; 62. Second connector; 7. Power drive unit; 8. Pulse air bag assembly; 9. Coding cable. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] In the prior art, the running and stopping positions of the blowing carriage 100 are determined by an encoder based on the motor speed. Limit switches are installed at the front and rear ends of the blowing carriage to determine the zero and end points of the operation. This system is complex to control and requires a high degree of automation, which often leads to coding confusion.

[0028] A bag dust collector blowing trolley of this embodiment, such as Figures 1 to 4 As shown, it includes a guide rail 2 provided on the top of the bag dust collector body 1, on which a blowing sliding carriage 100 connected to a pulse air bag assembly 8 slides; the pulse air bag assembly 8 includes a pulse valve for providing pulse compressed air;

[0029] A coding cable 9 is installed on one side of the guide rail 2, and an induction antenna adapted to the coding cable 9 is installed on the blowing sliding carriage 100 for non-contact absolute position detection;

[0030] The blowing sliding carriage 100 and its power drive device 7 are integrated into one body, and the power drive device 7 slides on the guide rail 2 following the blowing sliding carriage 100 .

[0031] The system further comprises a control system, which controls the movement of the blowing slide carriage 100 and the blowing action according to the position information, thereby ensuring accurate control of the blowing process.

[0032] The power driving device 7 is a motor, and the output shaft of the motor is connected to the input shaft of the blowing sliding carriage 100 through a gear transmission or a sprocket transmission.

[0033] The spraying sliding carriage 100 includes a frame 3, a spray barrel 4 is mounted on the frame 3, and a plurality of spray heads 5 are provided at the bottom of the spray barrel 4;

[0034] The top of the spray barrel 4 is connected to the pulse air bag assembly 8 through an air pipe 6.

[0035] The inner diameter of the nozzle barrel 4 from the end close to the first joint 61 to the other end is gradually changed from large to small; the nozzle 5 on the nozzle barrel 4 is gradually changed from large to small as the inner diameter of the nozzle 5 is changed, so as to adapt to the smooth and stable blowing out of the pulse compressed air and avoid blowing blockage.

[0036] One end of the air pipe 6 is sealedly connected to the nozzle 4 through a first joint 61 , and the other end is sealedly connected to the air bag of the pulse air bag assembly 8 through a second joint 62 .

[0037] A pulley block 31 adapted to the guide rail 2 is installed at the bottom of the frame 3 .

[0038] This bag filter spray carriage utilizes electromagnetic induction and Gray coding principles, replacing motor-encoded positioning control with encoder cable 9 for the spray carriage 100. This solves the coding confusion issue with the spray carriage 100 and improves its accuracy and stability. Furthermore, because the encoded signal does not rely on motor speed to calculate the carriage's travel distance, the motor can be mounted directly on the spray carriage 100 itself, optimizing the intermediate motion transmission step and eliminating the long transmission chain. This solves the problem of chain-related derailment and improves the operational reliability of the spray carriage 100.

[0039] This non-contact absolute position detection method achieves data communication through electromagnetic induction between the coding cable 9 installed along the guide rail 2 and the inductive antenna installed on the blowing sliding carriage 100. The coding cable 9 not only detects the address of each locomotive, but also completes data transmission between each locomotive and the central control room, and between each locomotive. This detection method obtains the absolute address of the blowing sliding carriage 100, which is unaffected even if the system loses power, eliminating position deviations of the locomotive caused by various reasons. The coding cable 9 is laid along the guide rail 2 at a distance of 5 to 20 cm from the blowing sliding carriage 100, eliminating wear and tear and avoiding vibration and jitter of the blowing sliding carriage 100 during travel.

[0040] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0041] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bag dust collector blowing trolley, comprising a guide rail disposed on the top of the bag dust collector body, on which a blowing sliding trolley connected to a pulse air bag assembly slides; characterized in that: A coding cable is installed on one side of the guide rail, and an induction antenna adapted to the coding cable is installed on the blowing sliding carriage; The blowing sliding carriage and its power driving device are integrated into one body, and the power driving device slides on the guide rail following the blowing sliding carriage.

2. The bag dust collector blowing trolley according to claim 1, characterized in that: The spray sliding carriage comprises a frame, a spray barrel is mounted on the frame, and a plurality of spray heads are arranged at the bottom of the spray barrel; The top of the spray barrel is connected to the pulse air bag assembly through an air pipe.

3. The bag dust collector blowing trolley according to claim 2, characterized in that: One end of the air pipe is sealed and connected to the nozzle through a first joint, and the other end is sealed and connected to the air bag of the pulse air bag assembly through a second joint.

4. The bag dust collector blowing trolley according to claim 2, characterized in that: A pulley block adapted to the guide rail is installed at the bottom of the frame.

5. The bag dust collector blowing trolley according to claim 2, characterized in that: The inner diameter of the spray barrel is gradually changed from large to small from the end close to the first joint to the other end.

6. The bag dust collector blowing trolley according to claim 5, characterized in that: The nozzles on the spray barrel are arranged to gradually change from large to small as the inner diameter of the nozzles changes.

7. The bag dust collector blowing trolley according to any one of claims 1 to 6, characterized in that: The output shaft of the power drive device is connected to the input shaft of the blowing sliding carriage through a gear transmission or a sprocket transmission.

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