Blowing system for cloth bag dust removal process and application of blowing system

Abstract

The invention relates to a blowing system for a bag dust removal process and application thereof, the blowing system comprises an upper box body, a middle box body and a dust hopper which are sequentially connected from top to bottom, a fixed-point moving device, a blowing device, a driving gas pipeline and a blowing gas pipeline are arranged in the upper box body, and a plurality of dust removal bags are arranged in the middle box body. High-pressure air flow drives the fixed-point moving device to intermittently move forwards at fixed points through the driving air pipeline, the blowing device is arranged on the fixed-point moving device, and the fixed-point moving device drives the blowing device to intermittently move forwards at fixed points, so that row-by-row blowing operation on the dust collecting bags is realized; according to the blowing system for the cloth bag dust removal process, the internal space of the upper box body can be greatly saved, convenience is provided for later maintenance, meanwhile, the equipment cost is reduced, and the expenditure is reduced. Compared with a traditional mode that an air cylinder, a gear and a chain are adopted for driving, the automatic steering device has the functions of emergency braking and accurate positioning, meanwhile, automatic steering can be achieved, and the operation direction does not need to be manually switched.

Description

Technical Field

[0001] The invention relates to a blowing system for a bag dust removal process and application thereof, belonging to the technical field of dust removal facilities. Background Art

[0002] Most existing flue gas dust removal systems use bag-type dust removal technology. The blowing facilities in the bag-type dust collector system generally use a fixed blowing pipe to blow the dust filter bags. Each row of dust bags is sprayed with a fixed blowing pipe, and each fixed blowing pipe is equipped with multiple air nozzles, each corresponding to the upper opening of a dust filter bag. Multiple rows of dust bags require multiple side-by-side fixed blowing pipes, which makes the space inside the bag-type dust collector's upper casing very crowded. This is not conducive to the maintenance and replacement of dust bags, resulting in a significant waste of time and labor for production inspections and maintenance work. This not only wastes labor costs but also prolongs production downtime, affecting and restricting the production efficiency of the entire upstream production line, causing significant economic losses to the company.

[0003] Chinese patent document CN110152407A discloses a bag dust collector blowing system and its application, which includes a compressed air storage tank, a left cylinder, a right cylinder, a mobile control mechanism, a mobile trolley, a blowing mechanism, and a PLC control system. The left cylinder and the right cylinder are respectively connected to the mobile control mechanism through a transmission mechanism, and the mobile trolley is connected to the mobile control mechanism. The blowing mechanism is arranged on the mobile trolley. The compressed air storage tank is connected to the left cylinder and the right cylinder through pipelines, and the pipelines are provided with solenoid valves A and B. The compressed air storage tank is also connected to the blowing mechanism, and a solenoid valve C is provided between the blowing mechanism and the compressed air storage tank. Solenoid valves A, B, and C are connected and controlled by the PLC control system. This invention solution simplifies the traditional structure of the bag dust collector to a certain extent, saving a lot of physical space. This solution uses a cylinder to drive gears and chains to drive the mobile cart forward, and uses high-voltage pulses to exert reciprocating work on the cylinder piston rod to achieve intermittent forward movement of the mobile cart. Although it is an improvement over traditional solutions, it still has problems such as high cost, complex structure, and easy derailment of the drive chain. At the same time, there are also problems such as poor positioning accuracy and easy aging of electrical circuits. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a blowing system for a bag dust removal process. The blowing system utilizes a high-pressure gas source as a driving force source, greatly reducing other driving devices, further freeing up physical space, and having the advantages of precise positioning and emergency braking.

[0005] The present invention also provides a working method of the spraying system of the above-mentioned bag dust removal process.

[0006] The technical solutions of the present invention are as follows:

[0007] A blowing system for a bag dust removal process comprises an upper box, a middle box, and an ash hopper connected sequentially from top to bottom; a fixed-point moving device, a blower, a driving air pipeline, and a blowing air pipeline are disposed in the upper box, and a plurality of dust removal bags are disposed in the middle box. High-pressure air flows through the driving air pipeline to drive the fixed-point moving device to intermittently move forward at a fixed point; the blower is disposed on the fixed-point moving device, and the fixed-point moving device carries the blower to move forward intermittently at a fixed point, and is temporarily connected to the blowing air pipeline one by one, thereby achieving a blowing operation on the dust removal bags;

[0008] The fixed-point moving device includes a limit switch, a guide slide tube, a sliding direction switcher, a left driver, a fixed-point shifter, and a right driver; the limit switches are arranged on the left and right sides of the top wall of the upper box body, the two ends of the guide slide tube are fixedly connected to the inner wall of the upper box body, the sliding direction switcher is arranged in the guide slide tube and its two ends are elastically connected to the inner wall of the upper box body respectively, and the switching of the sliding direction switcher is realized by the limit switches on the left and right sides;

[0009] The left driver, fixed-point shifter and right driver are all mounted on the guide slide tube. The top of the left driver and the right driver are respectively connected with a reverse thrust tube. The top of the fixed-point shifter is connected with a blow pipe. Both ends of the blow pipe are placed in the reverse thrust tube. A spring is mounted on the reverse thrust tube. One end of the spring is connected to the reverse thrust tube and the other end is connected to the blow pipe. The high-pressure airflow enters the blow pipe to push the left driver or the right driver forward, and the left driver or the right driver drives the fixed-point shifter to move forward intermittently.

[0010] Preferably, the drive air pipeline includes a main drive air pipe, a branch drive air pipe, and a pulse valve. The main drive air pipe connects to multiple parallel branch drive air pipes, and the pulse valve is installed on each branch drive air pipe. The pulse valve is controlled by a PLC. The purpose of this design is that when the branch drive air pipe is connected to the injection pipe, the pulse valve opens and injects high-pressure air into the injection pipe, driving the left or right actuator to move the fixed-point shifter to the next point.

[0011] Preferably, the blowing air pipeline includes a blowing air main pipe, a blowing air branch pipe and a pulse valve. The blowing air main pipe is connected to multiple blowing air branch pipes arranged in parallel. The pulse valve is arranged on the blowing air branch pipe, and the pulse valve is connected and controlled by a PLC.

[0012] Preferably, the blower includes a blowing circular tube and a blowing nozzle, the blowing circular tube is connected to a plurality of blowing nozzles arranged in parallel, and the blowing circular tube is fixedly connected to the bottom of the fixed-point shifter.

[0013] Preferably, the middle box is further provided with a bag perforated plate, which is provided with neatly arranged openings, and the top openings of the bags are fitted over the openings. The advantage of this design is that the bags can be neatly arranged in multiple rows and columns through the bag perforated plate, facilitating batch blowing operations on the bags by the blowing nozzle.

[0014] Preferably, C-shaped brackets II are provided at both ends of the blowing circular tube, and casters are provided at the bottom end of the bracket II, which are placed in the guide grooves on the left and right sides of the bag hole plate.

[0015] Preferably, the limit switch includes a bracket I, a guide slide, a limit column A and a limit column B; the top of the bracket I is connected to the top wall of the upper box body, one end of the limit column A and the limit column B is fixedly connected to the bracket I, and the other end passes through the displacement hole opened on the guide slide, and the bottom end of the guide slide is connected to a bearing.

[0016] Preferably, the sliding switch includes a left slide, a connecting plate and a right slide connected in sequence; a directional plate is provided on the top of the left slide and the right slide, guide pulleys are symmetrically provided on both sides of the left slide and the right slide, and multiple groups of symmetrically arranged lifters are provided on one side of the connecting plate.

[0017] Preferably, the lifter is a wedge-shaped plate, and a sloped driving and lifting slide is provided on the wedge-shaped plate.

[0018] Preferably, the guide slide tube is provided with a limit window hole, a drive window hole and a locking buckle clamp rail, the locking buckle clamp rail is provided on the outer wall of the guide slide tube, and the drive window hole is symmetrically provided on both sides of the locking buckle clamp rail.

[0019] Preferably, two parallel slideways are symmetrically provided on the left and right inner side walls of the guide slide tube, and the guide pulley is placed in the slideways.

[0020] Preferably, the guide pulley comprises a horizontal rotating wheel and a vertical rotating wheel connected to each other. The advantage of this design is that it can ensure the travel stability of the guide pulley in the slideway and reduce the sliding friction of the guide pulley.

[0021] Preferably, the inner cavity of the guide slide tube is provided with a plurality of equally spaced drive gear groups, and each drive gear group includes two drive gears symmetrically arranged on the left and right; the drive gear includes a fixed frame, a baffle, a spring, a guide slide shaft A, a guide slide shaft B and a drive lift shaft, the fixed frame is fixed on the inner wall of the guide slide tube, one end of the guide slide shaft A and the guide slide shaft B are connected to the fixed frame, and the other end is placed in the guide slide hole opened by the baffle, and the guide slide shaft B is connected to the baffle through a spring; one end of the drive lift shaft is fixed to the bottom of the baffle, and the other end is placed in the drive lift slide of the lifter, and the top of the baffle is located in the drive gear window hole. The advantage of this design is that during the direction switching process of the sliding switch, the lifter drives the left and right baffles of each pair of drive gears to extend out of the drive gear window hole in turn, thereby realizing a directional limiting effect on the left / right drive.

[0022] Preferably, the left and right actuators have the same structure, including a cylindrical slider, a column, and a lifting plate. The cylindrical slider is sleeved on the outer wall of the guide tube, the top of the cylindrical slider is connected to the reverse thrust tube via the column, and the lifting plate is laterally connected to the column. The purpose of this design is that when the right actuator reaches the rightmost end of the guide tube or the left actuator reaches the leftmost end of the guide tube, the lifting plate impacts the bottom of the proximal limit switch, lifting the limit switch upward, thereby releasing the limit switch's fixed restriction on the sliding switch. The sliding switch then slides in the opposite direction under the combined action of the springs at its two ends, achieving the fixed restriction of the sliding switch by the limit switch on the other side.

[0023] Preferably, a blowpipe distance stopper is provided on the outer wall of the end of the blowpipe, and a reverse thrust pipe distance stopper is provided on the inner wall of the end of the reverse thrust pipe, and the blowpipe distance stopper can contact the reverse thrust pipe distance stopper. The advantage of this design is that one end of the blowpipe is located inside the reverse thrust pipe, and during the relative movement of the blowpipe and the reverse thrust pipe in opposite directions, the blowpipe distance stopper and the reverse thrust pipe distance stopper come into contact with each other, and the two can achieve mutual dragging and traction during the movement.

[0024] Preferably, the top of the blowing pipe is connected to an air receiving pipe, and the bottom of the blowing pipe is connected to a driving pipe.

[0025] Preferably, the fixed-point shifter includes a cylindrical slider, which is sleeved on the outer wall of the guide slide tube, and the top of the cylindrical slider is connected to the bottom of the driving tube.

[0026] Preferably, a pressure element is provided at the bottom of the drive tube, and left and right release elements are provided on either side of the drive tube, with the left and right release elements positioned on either side of the fixed-point shifter. This design has the advantage that airflow enters the drive tube through the air receiving tube, driving the pressure element downward. This downward movement of the pressure element causes the outer ends of the left and right release elements to tilt upward, thereby releasing the fixed-point shifter.

[0027] Preferably, the left releaser comprises a left shift lever, a left crossbar, and a left vertical support rod, which are hinged in sequence. The bottom of the left vertical support rod is fixedly connected to the cylindrical slider of the fixed-point shifter. The left shift lever and the left crossbar are both provided with a single-sided cam. The advantage of this design is that the single-sided cam ensures that the left shift lever and the left crossbar can only rotate in one direction during rotation.

[0028] Preferably, the right releaser includes a right shift lever, a right crossbeam and a right vertical support rod hinged in sequence, the bottom of the right vertical support rod is fixedly connected to the cylindrical slider of the fixed-point shifter, and the right shift lever and the right crossbeam are both provided with a single-sided convex stop.

[0029] Preferably, the pressure device includes a main rod, which is provided with a pressure circular plate, a pressure rod, a limit baffle and a locking buckle in sequence from top to bottom; a horizontal circular hole baffle is provided on the inner wall of the driving tube, and two symmetrically arranged vertical sliding grooves are provided on the side wall. The pressure rod extends out of the sliding groove and contacts with the left crossbeam and the right crossbeam. The main rod passes through the circular hole baffle and the limit baffle is located below the circular hole baffle. A spring is sleeved on the main rod and the spring is located between the pressure rod and the circular hole baffle.

[0030] Preferably, the locking buckle includes a left diagonal brace, a right diagonal brace, a left transverse brace and a right transverse brace; the bottom ends of the left diagonal brace and the right diagonal brace are hinged to the main rod through a connecting shaft A, the top end of the left diagonal brace and one end of the left transverse brace are hinged to the connecting shaft B, the top end of the right diagonal brace and one end of the right transverse brace are hinged to the connecting shaft C, the other end of the left transverse brace and the other end of the right transverse brace are hinged to the connecting shaft D, and the connecting shaft D is placed in a sliding hole opened on the main rod and the connecting shaft D is connected to the main rod through a spring.

[0031] A working method of a spraying system of a bag dust removal process comprises the following steps:

[0032] 1) When the fixed-point shifter is located above the leftmost row of bags, the fixed-point shifter moves to the right, and the nozzle is aimed at the leftmost row of bags; the high-pressure airflow enters the nozzle through the blowing tube to blow the bags;

[0033] 2) After the bag blowing operation of the leftmost row is completed, the high-pressure pulse airflow enters the air receiving pipe, and the pressure device moves downward under the push of the high-pressure airflow. The outer ends of the left and right releasers are tilted upward at the same time, and the fixed-point locking state of the fixed-point shifter is released. The fixed-point shifter begins to slide to the right, and the locking buckle passes through the locking buckle clamping rail. The left and right diagonal supports of the locking buckle pop open, and the locking buckle is restricted below the locking buckle clamping rail;

[0034] 3) At the same time, high-pressure air flows into the left and right blowpipes. Since the left actuator is now limited by the left drive block, it remains in place, while the right actuator moves to the right, passing the left drive block at the next point.

[0035] 4) The right driver continues to move to the right, and the distance stops of the left and right blowpipes contact and pull the distance stops of their corresponding left and right reverse thrust pipes. After that, the left driver, the fixed-point shifter, and the right driver become one and slide to the right synchronously. When the kinetic energy of the right driver decreases to zero, the right driver stops moving forward, but under the traction of the spring retraction force, the right driver begins to slide back and is eventually stopped in front of the left driver stop at that point. After that, the right driver remains in place and continues to be pulled by the spring retraction force, while the fixed-point shifter and the left driver continue to follow and move forward.

[0036] 5) When the fixed-point shifter carries the blower to the right, the locking buckle leaves the locking buckle clamping rail, and the pressure device returns to its original position under the action of the spring restoring force. The left and right releasers return to a horizontal state, and the fixed-point shifter and the right releaser slide and pass the left drive block of the next group of drive blocks. However, the left releaser is stopped by the left drive block, and the fixed-point shifter stops there. At this time, the blower nozzle is facing the next row of bags.

[0037] 6) The fixed-point shifter stops moving forward and remains in this position; the left drive continues to move forward. When the left drive passes the left drive gear at the next point, the kinetic energy is reduced to zero and stops;

[0038] 7) After the fixed-point shifter stops steadily here, under the control of the PLC, high-pressure air flows through the blowing pipe into the blowing nozzle to perform the blowing operation on the bags in this row;

[0039] 8) The process of steps 1) to 7) is an intermittent forward movement of the fixed-point shifter and an intermittent blowing operation of the blower. The fixed-point shifter intermittently repeats the forward movement of steps 1) to 7), and finally, the right drive reaches the rightmost end of the guide slide tube;

[0040] 9) When the right drive reaches the rightmost end, the lifting plate of the right drive lifts the right limit switch. Under the action of the springs at both ends, the sliding switch slides to the left. The left directional plate passes the left limit switch, and the sliding switch is locked by the left limit switch.

[0041] 10) During the reverse conversion process of the sliding switch, the lifter lifts all the right drive gears upwards and drops all the left drive gears synchronously;

[0042] 11) At this point, the slide switcher has completed the reverse conversion of the travel direction of the fixed-point shifter and the left and right actuators. The fixed-point shifter and the left and right actuators begin to move from "right" to "left". After the fixed-point shifter intermittently repeats multiple forward movements and the injector completes the intermittent injection operation, the left actuator finally reaches the leftmost end of the guide slide tube.

[0043] 12) The left actuator's lifting plate lifts the left limit switch. The sliding switch begins to slide to the right under the action of the springs at both ends. The right directional plate passes the right limit switch, and the position of the sliding switch is locked by the right limit switch.

[0044] 13) Repeat the process of steps 1) to 12), the fixed-point shifter and the left and right drivers continue to perform cyclical intermittent sliding actions, and accordingly, the blower continues to perform cyclical intermittent blowing operations.

[0045] The technical features and beneficial effects of the present invention are as follows:

[0046] 1. Compared with the traditional point-to-point spraying method with multiple rows of fixed spray pipes, the spraying system of the bag dust removal process of the present invention can greatly save the internal space of the upper box, provide convenience for subsequent maintenance, and reduce equipment costs and expenses.

[0047] 2. Compared to traditional methods driven by cylinders, gears, and chains, the spray system of this invention's bag-type dust removal process offers emergency braking and precise positioning capabilities. Furthermore, it enables automatic steering, eliminating the need for manual switching of operating directions. This achieves the combined benefits of improved operating efficiency, labor savings, and cost reduction. The entire operation utilizes only high-pressure pulsed airflow as a power source, replacing other power sources such as electricity. This makes the process safer and more reliable, and aligns with the ecological philosophy of energy conservation, emission reduction, and low carbon environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front view schematic diagram of the overall structure of the injection system of the present invention;

[0049] Figure 2 It is a side view schematic diagram of the overall structure of the injection system of the present invention;

[0050] Figure 3 It is a schematic top view of the overall structure of the injection system of the present invention;

[0051] Figure 4 Schematic diagram of the partial structure of the fixed-point moving device in the present invention;

[0052] Figure 5 Schematic diagram of the structure of the guide slide pipe in the present invention;

[0053] Figure 6 Schematic diagram of the structure of the sliding switch in the present invention;

[0054] Figure 7 This is a front view of the limit switch of the present invention;

[0055] Figure 8 It is a side view of the limit switch of the present invention;

[0056] Figure 9 Schematic diagram of the structure of the injector in the present invention;

[0057] Figure 10 Schematic diagram of the structure of the fixed-point shifter in the present invention;

[0058] Figure 11 Schematic diagram of the structure of the locking buckle in the present invention;

[0059] Figure 12Schematic diagram of the structure of the driving tube in the present invention;

[0060] Figure 13 It is a structural schematic diagram of the left releaser in the present invention;

[0061] Figure 14 Schematic diagram of the structure of the right releaser of the present invention;

[0062] Figure 15 Schematic diagram of the structure of the pressure device in the present invention;

[0063] Figure 16 Schematic diagram of the structure of the lifter in the present invention;

[0064] Figure 17 Schematic diagram of the cooperation between the driving gear and the lifter in the present invention;

[0065] Figure 18 Schematic diagram of the structure of the driving gear in the present invention;

[0066] Figure 19 This is a schematic structural diagram of the left driver in the present invention;

[0067] Figure 20 Schematic diagram of the structure of the right driver in the present invention;

[0068] Figure 21 2 is a cross-sectional view of the locking buckle rail of the present invention;

[0069] Figure 22 for Figure 5 Section I in

[0070] Figure 23 for Figure 6 Section II in

[0071] In the figure: 1-injector, 2-fixed-point moving device, 3-sliding switch, 4-guide slide pipe, 5-spring I, 6-limit switch, 7-driving air main pipe, 8-driving air branch pipe, 9-pulse valve, 10-bag, 11-ash discharge valve, 12-injection air main pipe, 13-injection air branch pipe, 14-bag orifice plate, 15-guide slide, 16-rotor, 17-connecting rod, 18-fixed-point shifter, 19-left driver, 20-right driver, 21-injection pipe, 22-reverse thrust pipe, 23-right reverse thrust pipe distance stopper, 24-right injection pipe distance stopper, 25-spring II, 26- Locking buckle rail, 27-driving window hole, 28-limiting window hole, 29-bobbin, 30-slide, 31-directional plate, 32-connecting plate, 33-lifter, 34-guide pulley, 35-spring III, 36-guide slide, 37-displacement hole, 38-limiting column B, 39-limiting column A, 40-rotating shaft, 41-bearing, 42-bracket I, 43-blowing round pipe, 44-blowing nozzle, 45-bracket II, 46-castor, 47-cylinder slider, 48-left releaser, 49-right releaser, 50-pressurizer, 51-driving pipe, 52-left blowing pipe, 53-right blowing pipe Blowpipe, 54-air receiving tube, 55-round hole baffle, 56-locking buckle, 57-spring IV, 58-main rod, 59-spring V, 60-left cross brace, 61-right cross brace, 62-left oblique brace, 63-right oblique brace, 64-sliding hole, 65-coupling A, 66-coupling B, 67-coupling C, 68-coupling D, 69-slide, 70-pressure rod, 71-left position gear lever, 72-left crossbeam rod, 73-left vertical support rod, 74-right position gear lever, 75-right crossbeam rod, 76-right vertical support rod, 77-pressure circular plate, 78-limit baffle, 79-wedge plate, 80-drive lift Slide, 81-left drive block, 82-right drive block, 83-fixed frame, 84-baffle, 85-spring VI, 86-guide slide shaft A, 87-guide slide shaft B, 88-guide slide hole, 89-drive lift shaft, 90-left lifting plate, 91-left column, 92-left reverse thrust pipe, 93-left reverse thrust pipe distance limit block, 94-right lifting plate, 95-right column, 96-right reverse thrust pipe, 97-convex block, 98-left rail, 99-right rail, 100-slide, 101-slide rail square tube, 102-vertical rotating wheel, 103-horizontal rotating wheel, 104-cylinder slider, 105-cylinder slider. DETAILED DESCRIPTION

[0072] The present invention will be further described below with reference to embodiments and accompanying drawings, but is not limited thereto.

[0073] Example 1:

[0074] like Figure 1-3As shown, this embodiment provides a blowing system for a bag dust removal process, comprising an upper box, a middle box and an ash hopper connected in sequence from top to bottom. A fixed-point moving device 2, a blower 1, a driving air pipeline and a blowing air pipeline are provided in the upper box. A plurality of dust removal bags 10 are provided in the middle box. The high-pressure airflow drives the fixed-point moving device 2 to move forward intermittently and at a fixed point through the driving air pipeline. The blower 1 is provided on the fixed-point moving device 2, and the fixed-point moving device 2 carries the blower 1 to move forward intermittently and at a fixed point, thereby connecting with the blowing air pipeline to realize the bag blowing operation.

[0075] The fixed-point moving device 2 includes a limit switch 6, a guide tube 4, a sliding direction switch 3, a left driver 19, a fixed-point shifter 18, and a right driver 20. The limit switches are arranged on the left and right sides of the top wall of the upper box body, the two ends of the guide tube 4 are fixedly connected to the inner wall of the upper box body, and the sliding direction switch 3 is arranged in the guide tube 4 and its two ends are elastically connected to the inner wall of the upper box body. The direction switching of the sliding direction switch 3 is achieved by the limit switches on the left and right sides.

[0076] The top of the blowing pipe 21 is connected to the air receiving pipe 54, and the bottom of the blowing pipe is connected to the driving pipe 51, forming a cross-shaped four-way pipe;

[0077] The left driver 19, the fixed-point shifter 18 and the right driver 20 are all mounted on the guide slide 4. The top of the left driver 19 and the right driver 20 are each connected to a reverse thrust pipe 22. The top of the fixed-point shifter 18 is connected to the blowpipe 21. The two ends of the blowpipe 21 are placed in the reverse thrust pipe 22. A spring II 25 is sleeved on the reverse thrust pipe 22. One end of the spring II 25 is connected to the reverse thrust pipe 22 and the other end is connected to the blowpipe 21. The high-pressure airflow enters the blowpipe 21 through the air receiving pipe 54 to push the left driver 19 or the right driver 20 forward, and the left driver 19 or the right driver 20 drives the fixed-point shifter 18 to move forward intermittently.

[0078] Specifically, the upper box body, the middle box body and the ash hopper are integrally formed, and an ash discharge valve 11 is installed at the bottom of the ash hopper. When the dust in the ash hopper is full, the ash discharge valve can be opened to release the dust and transport it out.

[0079] The driving air pipeline provides driving force and primarily comprises a main driving air pipe 7, a branch driving air pipe 8, and a pulse valve 9. The main driving air pipe 7 connects to multiple parallel branch driving air pipes 8, each of which is equipped with the aforementioned pulse valve 9, which is controlled by a PLC. When the branch driving air pipe 8 connects to the air receiving pipe 54, the pulse valve 9 opens, allowing high-pressure air to flow through the air receiving pipe into the injection pipe, driving the left or right actuator to move the fixed-point shifter toward the next position.

[0080] The blowing air pipeline is used to blow the dust removal bag 10 to blow the dust in the bag into the ash hopper. It mainly includes a blowing air main pipe 12, a blowing air branch pipe 13 and a pulse valve. The blowing air main pipe 12 is connected to multiple blowing air branch pipes 13 arranged in parallel. The pulse valve is set on the blowing air branch pipe 13, and the pulse valve is connected and controlled by the PLC.

[0081] The blower 1 includes a blow tube 43 and blow nozzles 44. Multiple blow nozzles 44 are connected to the blow tube 43 in parallel. The blow tube 43 is connected to the bottom of the fixed-point shifter 18 via a connecting rod 17. The blower 1 is carried forward intermittently by the fixed-point shifter 18. When the fixed-point shifter 18 stops above each row of bags 10, the blow nozzles 44 complete the blowing operation on the bags under the control of the PLC.

[0082] The limit switch includes a bracket I 42, a guide slide 36, a limit column A 39 and a limit column B 38; the top of the bracket I 42 is connected to the top wall of the upper box body, one end of the limit column A 39 and the limit column B 38 are fixedly connected to the bracket I 42, and the other end passes through the displacement hole 37 opened on the guide slide 36, and the bottom end of the guide slide 36 is connected to a bearing 41.

[0083] The sliding direction switcher 3 comprises a left slider 30, a connecting plate 32, and a right slider, which are connected in sequence. A directional plate 31 is installed at the top of each slider. Guide pulleys 34 are symmetrically arranged on the left and right side walls of the sliders. A plurality of symmetrically arranged lifters 33 are installed on one side of the connecting plate. The lifters 33 are wedge-shaped plates 79 with a hollowed-out, sloped drive and lifting slideway 80.

[0084] The guide slide tube 4 is provided with a limiting window hole 28, a driving window hole 27 and a locking buckle rail 26. The locking buckle rail 26 is mounted on the upper surface of the outer wall of the guide slide tube 4. The driving window hole 27 is symmetrically arranged on the left and right sides of the locking buckle rail 26. There are two limiting window holes 28, one on the left and one on the right, which are arranged at both ends of the guide slide tube 4.

[0085] Two parallel slideways 100 are symmetrically provided on the left and right inner side walls of the guide slide tube 4 , and the guide pulley 34 is placed in the slideways 100 .

[0086] The guide pulley 34 comprises a connected transverse rotating wheel 103 and a vertical rotating wheel 102. This can ensure the travel stability of the guide pulley in the slideway and reduce the sliding friction of the guide pulley.

[0087] The inner cavity of the guide slide tube 4 is provided with multiple equally spaced drive gear groups, each drive gear group includes two drive gears symmetrically arranged on the left and right, namely the left drive gear 81 and the right drive gear 82; the drive gear includes a fixed frame 83, a baffle 84, a spring VI85, a guide slide shaft A86, a guide slide shaft B87 and a driving lifting shaft 89, the fixed frame 83 is fixed on the inner wall of the guide slide tube 4, one end of the guide slide shaft A86 and the guide slide shaft B87 are connected to the fixed frame 83, and the other end is placed in the guide slide hole 88 opened in the baffle 84, and the guide slide shaft B87 is connected to the baffle 84 through the spring VI85; one end of the driving lifting shaft 89 is fixed to the bottom of the baffle 84, and the other end is placed in the driving and lifting slide 80 of the lifter, and the top of the baffle 84 is located at the driving block window hole 27. During the direction switching process of the sliding switch, the lifter 33 drives the left and right baffles of each pair of driving gears to extend out of the driving baffle window holes in turn. If the top end of the left baffle extends out of the driving baffle window hole, the right baffle falls and its top end is not higher than the driving baffle window hole; if the top end of the right baffle extends out of the driving baffle window hole, the left baffle falls and its top end is not higher than the driving baffle window hole, thereby realizing the directional limiting effect on the left / right drive.

[0088] like Figure 19 、 20 As shown, the left and right actuators 19 and 20 have identical structures, including cylindrical sliders 104 / 105, columns 91 / 95, and lifting plates 90 / 94. The cylindrical sliders are sleeved onto the outer wall of the guide tube 4. The top of the cylindrical sliders is connected to the reverse thrust tube 22 via the columns, and the lifting plates are laterally connected to the columns. When the right actuator 20 reaches the rightmost end of the guide tube 4, or the left actuator 19 reaches the leftmost end of the guide tube 4, the lifting plates impact the bottom of the proximal limit switch, lifting it upward, thereby releasing the limit switch's fixed restriction on the sliding switch. The sliding switch then slides in the opposite direction under the combined action of the springs at its ends, completing the fixed restriction imposed by the other limit switch on the sliding switch.

[0089] A blow pipe distance stop is provided on the outer wall of the end of the blow pipe 21, and a reverse thrust pipe distance stop is provided on the inner wall of the end of the reverse thrust pipe. The blow pipe distance stop can contact the reverse thrust pipe distance stop. The two ends of the blow pipe are respectively located inside the left and right reverse thrust pipes. During the relative movement of the blow pipe and the reverse thrust pipe in opposite directions, after the blow pipe distance stop and the reverse thrust pipe distance stop come into contact, the two can achieve mutual dragging and traction during the movement.

[0090] The fixed-point shifter 18 includes a cylindrical slider 47 . The cylindrical slider 47 is sleeved on the outer wall of the guide slide tube 4 . The top of the cylindrical slider 47 is connected to the bottom of the driving tube 51 .

[0091] A pressure element 50 is located at the bottom of the drive tube 51. A left release 48 and a right release 49 are located on either side of the drive tube 51. The left and right releases 48 and 49 are positioned on either side of the fixed-point shifter 18. Airflow enters the drive tube through the air receiving tube, driving the pressure element downward. This downward movement of the pressure element causes the outer ends of the left and right release elements to tilt upward, thereby releasing the fixed-point shifter.

[0092] The left releaser 48 comprises a left shift lever 71, a left crossbar 72, and a left vertical support rod 73, which are hinged in sequence. The bottom of the left vertical support rod 73 is fixedly connected to the cylindrical slider 47 of the fixed-point shifter. The left shift lever 71 and the left crossbar 72 are both provided with a single-sided cam 97. The single-sided cam ensures that the left shift lever and the left crossbar can only rotate in one direction during rotation.

[0093] The right releaser 49 and the left releaser 48 have the same structure, which includes a right shift rod 74, a right crossbeam 75 and a right vertical support rod 76 hinged in sequence. The bottom of the right vertical support rod 76 is fixedly connected to the cylindrical slider 47 of the fixed-point shifter. The right shift rod 74 and the right crossbeam 75 are both provided with a single-sided convex stop 97.

[0094] The pressure device 50 includes a main rod 58, which is provided with a pressure circular plate 77, a pressure rod 70, a limit baffle 78 and a locking buckle 56 in sequence from top to bottom; a horizontal circular hole baffle 55 is provided on the inner wall of the driving tube, and a slide groove 69 is symmetrically opened on the side wall. The pressure rod 70 extends out of the slide groove 69 and contacts the inner ends of the left crossbeam 72 and the right crossbeam 75. The main rod 58 passes through the circular hole baffle 55 and the limit baffle 78 is located below the circular hole baffle 55. A spring IV57 is sleeved on the main rod 58 and the spring IV57 is located between the pressure rod 70 and the circular hole baffle 55.

[0095] The locking buckle 56 includes a left diagonal brace 62, a right diagonal brace 63, a left transverse brace 60 and a right transverse brace 61; the bottom ends of the left diagonal brace 62 and the right diagonal brace 63 are hinged to the main rod 58 through a connecting shaft A65, the top end of the left diagonal brace 62 and one end of the left transverse brace 60 are hinged through a connecting shaft B66, the top end of the right diagonal brace 63 and one end of the right transverse brace 61 are hinged through a connecting shaft C67, the other end of the left transverse brace 60 and the other end of the right transverse brace 61 are hinged through a connecting shaft D68, and the connecting shaft D68 is placed in a sliding hole 64 opened on the main rod 58 and the connecting shaft D68 is connected to the main rod 58 through a spring V59.

[0096] The basic principle of this embodiment is to utilize a high-pressure gas source as a driving force, replacing traditional electric drive. The left or right driver carries the fixed-point shifter forward in intermittent, fixed-point motion. A sliding switch switches the direction of the fixed-point shifter's reciprocating travel, ultimately achieving reciprocating, intermittent, fixed-point motion. At each stop, the blower sprays the corresponding row of bags below it.

[0097] Example 2:

[0098] A spraying system for a bag dust removal process has a structure as described in Example 1, except that a high-pressure gas source is provided for the entire spraying system, which can be connected to an existing gas source delivery pipeline at the work site or to a gas tank that separately stores a high-pressure gas source.

[0099] Example 3:

[0100] A bag dust removal system having a structure similar to that described in Example 1, differs in that a bag filter plate 14 is further provided within the middle housing. This plate is welded to the inner wall of the middle housing and primarily serves to connect the dust removal bags 10 below. The plate is provided with neatly arranged openings, with the top openings of the bags fitting over the openings. This plate allows the bags to be neatly arranged in multiple rows and columns, facilitating alignment of the nozzle 44 with the openings.

[0101] C-shaped brackets II 45 are provided at both ends of the blowing tube 43, and casters 46 are provided at the bottom ends of the brackets II 45. The casters 46 are placed in the guide grooves 15 on the left and right sides of the bag hole plate 14. When the fixed-point shifter 18 carries the blower 1 intermittently forward, the casters 46 slide in the guide grooves 15, which can increase the stability during the forward process.

[0102] Example 4:

[0103] A method for operating a spray system for a bag dust removal process, utilizing the spray system solution described in Example 1, 2, or 3, wherein the specific working process is as follows:

[0104] 1) When the fixed-point shifter 18 is located above the leftmost row of dust bags 10, the fixed-point shifter 18 is moving rightward, the blowing nozzle 44 is aimed at the leftmost row of bags 10, and the blowing circular tube 43 is connected to the leftmost blowing air branch pipe. The PLC controls the pulse valve on the leftmost blowing air branch pipe 13 to open, and the high-pressure airflow enters the blowing nozzle 44 through the blowing circular tube 43 to blow the bags 10 in the leftmost row.

[0105] 2) After the blowing operation of the bag in the leftmost row is completed, the PLC controls the pulse valve 9 on the driving air branch pipe 8 to open. At this time, the driving air branch pipe 8 on the leftmost side is connected to the air receiving pipe 54. After the high-pressure pulse airflow enters the driving pipe 51 from the air receiving pipe 54, the pressure device 50 moves downward under the push of the high-pressure airflow. The outer ends of the left releaser 48 and the right releaser 49 are tilted upward at the same time, and the fixed-point locking state of the fixed-point shifter 18 is released. The locking buckle 56 passes through the locking buckle clamping rail 26. The left diagonal support 62 and the right diagonal support 63 of the locking buckle 56 are ejected, and the locking buckle 56 is restricted to slide forward under the locking buckle clamping rail 26;

[0106] 3) At the same time, the high-pressure airflow enters the left and right blowpipes 52, 53. Since the left actuator 19 is now limited by the left drive stop 81 and remains in position, the right actuator 20 moves to the right and passes the next left drive stop.

[0107] 4) The right driver 20 continues to move to the right, and the distance stops of the left blowpipe 52 and the right blowpipe 53 contact and pull the distance stops of the corresponding left reverse thrust pipe 92 and the right reverse thrust pipe 96. After that, the left driver 19, the fixed-point shifter 18, and the right driver 20 become one and slide to the right synchronously. When the kinetic energy of the right driver 20 decreases to zero, the right driver 20 stops moving forward. However, under the traction of the retraction force of the spring II 25, the right driver 20 begins to slide back and is eventually stopped in front of the left drive stop at that point. After that, the right driver 20 remains in position and continues to be pulled by the retraction force of the spring, while the fixed-point shifter 18 and the left driver 19 continue to move forward.

[0108] 5) As the fixed-point shifter 18 carries the blower 1 to the right, the locking buckle 56 leaves the locking buckle clamping rail 26, and the presser 50 returns to its original position under the restoring force of the spring V 59. The left releaser 48 and the right releaser 49 return to a horizontal state. At this time, the fixed-point shifter 18 slides to the next set of drive gears. The left releaser 48 is stopped by the left drive gear 81, and the fixed-point shifter 18 stops there. At this time, the blower nozzle 44 is facing the next row of bags.

[0109] 6) The fixed-point shifter 18 stops moving forward and remains in this position; the left driver 19 continues to move rightward and forward, and after it passes its corresponding next left-side drive block, it is blocked on its right side by the left-side drive block, and finally stops at this point after the spring force is exhausted and the kinetic energy is reduced to zero;

[0110] 7) After the fixed-point shifter 18 stops here, at the specified time point, the PLC controls the pulse valve on the injection air branch pipe 13 to open again, and the high-pressure air flow enters the injection nozzle 44 through the injection pipe 43 again to perform the injection operation on the bags in this row;

[0111] 8) The process of steps 1) to 7) is an intermittent forward movement of the fixed-point shifter and an intermittent blowing operation of the blower. The fixed-point shifter intermittently repeats the forward movement of steps 1) to 7), and finally, the right drive reaches the rightmost end of the guide slide tube;

[0112] 9) When the right driver 20 reaches the rightmost end of the guide tube, the lifting plate 94 of the right driver 20 lifts the right limit switch. Under the elastic force of the springs I5 at both ends, the sliding switch 3 slides to the left. The left directional plate 31 passes the left limit switch, and the sliding switch 3 is locked by the left limit switch.

[0113] 10) During the reverse switching process of the sliding switch 3, the lifter 33 lifts all the right driving gears 82 upwards and drops all the left driving gears 81 synchronously;

[0114] 11) At this point, the slide switch 3 has completed the reverse switching of the travel direction of the fixed-point shifter 18 and the left and right actuators 19 and 20. The fixed-point shifter and the left and right actuators begin to move from "right" to "left". After the fixed-point shifter intermittently repeats multiple forward movements and the injector completes its intermittent injection operation, the left actuator 19 finally reaches the leftmost end of the guide tube 4.

[0115] 12) The lifting plate 90 of the left actuator 19 lifts the left limit switch. Under the elastic force of the springs I5 at both ends, the sliding switch 3 begins to slide to the right. The right directional plate 94 passes the right limit switch, and the position of the sliding switch 3 is locked by the right limit switch.

[0116] 13) Repeat the process of steps 1)-12), the fixed-point shifter 18 and the left driver 19 and the right driver 20 continue to complete the synchronous reciprocating intermittent sliding action to the left or right, and accordingly, the blower 1 reciprocates to complete the intermittent blowing operation on the cloth bag 10.

[0117] The above description is only a specific embodiment of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A blowing system for bag dust removal process, characterized in that: It includes an upper box body, a middle box body and an ash hopper connected in sequence from top to bottom; a fixed-point moving device, a blower, a driving air pipeline and a blowing air pipeline are installed in the upper box body, and multiple dust bags are installed in the middle box body. The high-pressure airflow drives the fixed-point moving device to move forward intermittently and at a fixed point through the driving air pipeline; the blower is installed on the fixed-point moving device, and the fixed-point moving device carries the blower to move forward intermittently and at a fixed point, and is temporarily connected with the blowing air pipeline one by one to realize the blowing operation of the dust bags; The fixed-point moving device includes a limit switch, a guide slide tube, a sliding direction switcher, a left driver, a fixed-point shifter, and a right driver; the limit switches are arranged on the left and right sides of the top wall of the upper box body, the two ends of the guide slide tube are fixedly connected to the inner wall of the upper box body, the sliding direction switcher is arranged in the guide slide tube and its two ends are elastically connected to the inner wall of the upper box body respectively, and the switching of the sliding direction switcher is realized by the limit switches on the left and right sides; The left driver, fixed-point shifter and right driver are all mounted on the guide slide tube. The top of the left driver and the right driver are respectively connected with a reverse thrust tube. The top of the fixed-point shifter is connected with a blow pipe. Both ends of the blow pipe are placed in the reverse thrust tube. A spring is mounted on the reverse thrust tube. One end of the spring is connected to the reverse thrust tube and the other end is connected to the blow pipe. The high-pressure airflow enters the blow pipe to push the left driver or the right driver forward, and the left driver or the right driver drives the fixed-point shifter to move forward intermittently.

2. The spraying system for bag dust removal process according to claim 1, characterized in that: The driving gas pipeline includes a driving gas main pipe, a driving gas branch pipe and a pulse valve. The driving gas main pipe is connected to multiple driving gas branch pipes arranged in parallel. The pulse valve is set on the driving gas branch pipe, and the pulse valve is connected and controlled by a PLC.

3. The spraying system for bag dust removal process according to claim 1, characterized in that: The injection air pipeline includes an injection air main pipe, an injection air branch pipe and a pulse valve. The injection air main pipe is connected to multiple injection air branch pipes arranged in parallel. The pulse valve is arranged on the injection air branch pipe, and the pulse valve is connected and controlled by a PLC.

4. The spraying system for bag dust removal process according to claim 1, characterized in that: The blower comprises a blowing circular tube and a blowing nozzle. The blowing circular tube is connected to a plurality of blowing nozzles arranged in parallel. The blowing circular tube is fixedly connected to the bottom of the fixed-point shifter.

5. The spraying system for bag dust removal process according to claim 1, characterized in that: The limit switch includes a bracket I, a guide slide, a limit column A and a limit column B; the top of the bracket I is connected to the top wall of the upper box body, one end of the limit column A and the limit column B is fixedly connected to the bracket I, and the other end passes through the displacement hole opened on the guide slide, and the bottom end of the guide slide is connected to a bearing.

6. The spraying system for bag dust removal process according to claim 1, characterized in that: The sliding switch includes a left slide, a connecting plate and a right slide connected in sequence; a directional plate is provided on the top of the left slide and the right slide, guide pulleys are symmetrically provided on both sides of the left slide and the right slide, and multiple groups of symmetrically arranged lifters are provided on one side of the connecting plate.

7. The spraying system for bag dust removal process according to claim 6, characterized in that: The lifter is a wedge-shaped plate, and a sloped driving and lifting slideway is provided on the wedge-shaped plate.

8. The blowing system for bag dust removal process according to claim 7, characterized in that: The guide slide tube is provided with a limit window hole, a drive window hole and a locking buckle clamping rail. The locking buckle clamping rail is provided on the outer wall of the guide slide tube. The drive window hole is symmetrically provided on both sides of the locking buckle clamping rail.

9. The spraying system for bag dust removal process according to claim 8, characterized in that: The inner cavity of the guide slide tube is provided with multiple driving gear groups with equal intervals, and each driving gear group includes two driving gears symmetrically arranged on the left and right; the driving gear includes a fixed frame, a baffle, a spring, a guide slide shaft A, a guide slide shaft B and a driving lifting shaft, the fixed frame is fixed on the inner wall of the guide slide tube, one end of the guide slide shaft A and the guide slide shaft B are connected to the fixed frame, and the other end is placed in the guide slide hole opened in the baffle, and the guide slide shaft B is connected to the baffle through a spring; one end of the driving lifting shaft is fixed to the bottom of the baffle, and the other end is placed in the driving and lifting slide of the lifter, and the top of the baffle is located at the driving gear window hole.

10. A method for operating a spraying system for a bag dust removal process according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) When the fixed-point shifter is located above the leftmost row of bags, the fixed-point shifter moves to the right, and the nozzle is aimed at the leftmost row of bags; the high-pressure airflow enters the nozzle through the blowing tube to blow the bags; 2) After the bag blowing operation of the leftmost row is completed, the high-pressure pulse airflow enters the air receiving pipe, and the pressure device moves downward under the push of the high-pressure airflow. The outer ends of the left and right releasers are tilted upward at the same time, and the fixed-point locking state of the fixed-point shifter is released. The fixed-point shifter begins to slide to the right, and the locking buckle passes through the locking buckle clamping rail. The left and right diagonal supports of the locking buckle pop open, and the locking buckle is restricted below the locking buckle clamping rail; 3) At the same time, high-pressure air flows into the left and right blowpipes. Since the left actuator is now limited by the left drive block, it remains in place, while the right actuator moves to the right, passing the left drive block at the next point. 4) The right driver continues to move to the right, and the distance stops of the left and right blowpipes contact and pull the distance stops of their corresponding left and right reverse thrust pipes. After that, the left driver, fixed-point shifter, and right driver become one and slide synchronously to the right. When the kinetic energy of the right driver decreases to zero, the right driver stops moving forward, but under the pull of the spring retraction force, the right driver begins to slide back, and is finally stopped in front of the left driver stop at this point. After that, the right driver keeps its position and continues to be pulled by the spring retraction force, while the fixed-point shifter and the left driver continue to follow and move forward; 5) When the fixed-point shifter carries the blower to the right, the locking buckle leaves the locking buckle clamping rail, and the pressure device returns to its original position under the action of the spring restoring force. The left and right releasers return to a horizontal state, and the fixed-point shifter and the right releaser slide and pass the left drive block of the next group of drive blocks. However, the left releaser is stopped by the left drive block, and the fixed-point shifter stops there. At this time, the blower nozzle is facing the next row of bags. 6) The fixed-point shifter stops moving forward and remains in this position; the left drive continues to move forward. When the left drive passes the left drive gear at the next point, the kinetic energy is reduced to zero and stops; 7) After the fixed-point shifter stops steadily here, under the control of the PLC, high-pressure air flows through the blowing pipe into the blowing nozzle to perform the blowing operation on the bags in this row; 8) The process of steps 1) to 7) is an intermittent forward movement of the fixed-point shifter and an intermittent blowing operation of the blower. The fixed-point shifter intermittently repeats the forward movement of steps 1) to 7), and finally, the right drive reaches the rightmost end of the guide slide tube; 9) When the right drive reaches the rightmost end, the lifting plate of the right drive lifts the right limit switch. Under the action of the springs at both ends, the sliding switch slides to the left. The left directional plate passes the left limit switch, and the sliding switch is locked by the left limit switch. 10) During the reverse conversion process of the sliding switch, the lifter lifts all the right drive gears upwards and drops all the left drive gears synchronously; 11) At this point, the slide switcher has reversed the direction of travel of the fixed-point shifter and the left and right actuators, and the fixed-point shifter and the left and right actuators begin moving from right to left. After the fixed-point shifter intermittently repeats multiple forward movements and the injector completes its intermittent injection operation, the left actuator finally reaches the leftmost end of the guide tube. 12) The left actuator's lifting plate lifts the left limit switch. The sliding switch begins to slide to the right under the action of the springs at both ends. The right directional plate passes the right limit switch, and the position of the sliding switch is locked by the right limit switch. 13) Repeat the process of steps 1) to 12), the fixed-point shifter and the left and right drivers continue to perform cyclical intermittent sliding actions, and accordingly, the blower continues to perform cyclical intermittent blowing operations.

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