Mechanism sand production cloth bag pulse dust collector

Abstract

This invention provides a baghouse pulse dust collector for manufactured sand production, relating to the field of manufactured sand production technology. It includes a dust collector housing with a controller fixedly connected to the front and a dust discharge pipe fixedly connected to the bottom. A pulse jet angle adjustment assembly is located on the upper inner and outer sides of the dust collector housing. A quick-change bag cage assembly is located inside the dust collector housing. A screw conveyor and vibration dust discharge assembly is located on the lower inner and outer sides of the dust collector housing. This invention solves the technical problems in related technologies where pulse jet pipes are mostly set at fixed angles, resulting in uneven airflow coverage of the entire filter bag; time-consuming and labor-intensive disassembly and installation of bag cages, severely impacting production line maintenance downtime; and the large particle size, high density, and easy caking of manufactured sand dust, leading to accumulation and even blockage.

Description

Technical Field

[0001] This invention belongs to the field of manufactured sand production technology, specifically, it relates to a bag pulse dust collector for manufactured sand production. Background Technology

[0002] Baghouse pulse jet dust collectors are core environmental protection equipment used in manufactured sand production lines to handle the large amounts of dust generated during crushing and screening. Existing baghouse dust collectors for manufactured sand typically include a dust collection chamber, inlet duct, outlet duct, ash hopper, filter bags, bag cages, and a pulse jet cleaning system. The working principle is as follows: after dust-laden gas enters the chamber, the dust is intercepted and adheres to the surface of the filter bags, and the purified gas is discharged by a fan; when the dust on the filter bag surface reaches a certain thickness, the pulse jet cleaning system releases high-pressure gas to back-blow and clean the filter bags, causing the dust to fall into the ash hopper and be discharged through the ash discharge valve. This type of equipment is widely used in the manufactured sand industry and plays a crucial role in meeting environmental emission standards.

[0003] However, existing manufactured sand baghouse dust collectors still have significant shortcomings in practical applications. Firstly, their pulse jet pipes are mostly set at a fixed angle, resulting in uneven airflow coverage of the entire filter bag. Dead zones for cleaning easily form near the edge of the tube sheet, leading to a significant increase in dust collection resistance after long-term operation. Secondly, the bag cages are fixed to the tube sheet using traditional elastic expansion rings or bolts. When replacing damaged filter bags, the operating space is limited, and disassembling and installing a single bag cage is extremely time-consuming and labor-intensive, severely impacting production line maintenance downtime. Furthermore, manufactured sand dust particles are large, dense, and prone to caking, making it difficult for ordinary ash hoppers and unloaders to discharge them smoothly. This often leads to accumulation and even blockage at the bottom, preventing continuous and stable equipment operation. Therefore, it is necessary to improve the existing structure. Summary of the Invention

[0004] The purpose of this invention is to provide a baghouse pulse dust collector for manufactured sand production, which solves the problems of existing technologies where pulse jet pipes are mostly set at a fixed angle, resulting in uneven airflow coverage of the entire filter bag; the time-consuming and labor-intensive disassembly and installation of the bag cage, which seriously affects the maintenance downtime of the production line; and the large, heavy, and easily caking particle size of manufactured sand dust, which is difficult to discharge smoothly using ordinary ash hoppers and unloaders, often accumulating at the bottom or even clogging the equipment, thus preventing continuous and stable operation. Therefore, it is necessary to improve the existing structure to address these technical problems.

[0005] At least one embodiment of the present invention provides a bag pulse dust collector for manufactured sand production, comprising: The dust collector has four legs fixedly connected to the bottom of its outer wall, a controller fixedly connected to the front side of the dust collector, a dust discharge pipe fixedly connected to the bottom of the dust collector, a dust discharge valve electrically connected to the controller fixedly connected to the outer wall of the dust discharge pipe, an air inlet pipe fixedly connected to the lower right side of the dust collector, an air guide pipe fixedly connected to the upper left side of the dust collector, a fan fixedly connected to the end of the air guide pipe away from the dust collector, and an exhaust pipe fixedly connected to the top air outlet of the fan. A blowpipe angle adjustment assembly is provided on the upper inner and outer sides of the dust collector housing. The blowpipe angle adjustment assembly is used to adjust the angle of the blowpipe to avoid blowpipe dead angles. A quick-change bag cage assembly is installed inside the dust collector housing. The quick-change bag cage assembly can quickly disassemble and install the bag cage, greatly shortening the replacement time of a single bag cage and improving maintenance efficiency. The spiral conveyor and vibrating dust removal assembly is located on the lower inner and outer sides of the dust collector. The spiral conveyor and vibrating dust removal assembly can vibrate and loosen the manufactured sand dust accumulated in the dust collector, and in conjunction with the spiral conveyor forcibly pushes it to avoid dust accumulation.

[0006] According to an exemplary embodiment of this disclosure, the jet pipe angle adjustment assembly includes an air tank, which is fixedly connected to the upper rear side wall of the dust collector. A plurality of equally spaced right-angle pipes are fixedly connected to the top of the outer wall of the air tank, and a pulse solenoid valve is fixedly connected to the outer wall of each of the right-angle pipes.

[0007] According to an exemplary embodiment of this disclosure, a plurality of blowpipes are rotatably connected inside the dust collector housing via sealed bearings. The rear ends of the plurality of blowpipes all penetrate into the rear side wall of the dust collector housing and are rotatably connected to corresponding right-angle pipes. The front ends of the plurality of blowpipes all penetrate into the front side of the dust collector housing and are fixedly connected to connecting short rods. The ends of the plurality of connecting short rods away from the blowpipes are rotatably connected to connecting long rods.

[0008] According to an exemplary embodiment of this disclosure, a second bevel gear is fixedly connected to the rear outer wall of the blowpipe on the left side, a first bevel gear is meshed with the top of the second bevel gear, a first motor is fixedly connected to the rear wall of the dust collector, the output shaft of the first motor is fixedly connected to the first bevel gear, and the controller is electrically connected to the first motor and several pulse solenoid valves respectively.

[0009] According to an exemplary embodiment of this disclosure, the quick-change bag cage assembly includes a fixing plate, which is fixedly connected to the upper interior of the dust collector housing. The fixing plate has a plurality of equally spaced circular slots inside, and a circular plate is fixedly connected to the inner wall of each of the circular slots. An annular plate is rotatably connected to the top of the circular plate, and a worm gear is fixedly connected to the bottom of the outer wall of the annular plate.

[0010] According to an exemplary embodiment of this disclosure, two symmetrical side plates are fixedly connected to the top edge of the circular plate. A worm gear meshing with a worm wheel is rotatably connected to the opposite surfaces of the two side plates. A micro motor is fixedly connected to the right side wall of the right side plate. The output shaft of the micro motor passes through the left side wall of the right side plate and is fixedly connected to the worm gear. A plurality of arc-shaped grooves distributed in an annular array are opened on the outer wall of the annular plate. Sliding sleeves are rotatably connected inside the plurality of arc-shaped grooves.

[0011] According to an exemplary embodiment of this disclosure, a plurality of fixed rods arranged in a ring array are fixedly connected to the top of the circular plate. Rotating rods are rotatably connected to the outer walls of the fixed rods. The rotating rods are respectively sleeved inside the corresponding sliding sleeves. A limiting arc block is fixedly connected to the end of the rotating rod away from the fixed rod. A bag cage is provided inside the circular plate. An annular groove is opened on the top of the outer wall of the bag cage. The limiting arc block clamps and limits the annular groove. The controller is electrically connected to a micro motor.

[0012] According to an exemplary embodiment of this disclosure, the spiral conveying and vibrating ash removal assembly includes a horizontal plate, which is fixedly connected to the lower interior of the dust collector housing. A gearbox is fixedly connected to the top of the horizontal plate, and a second motor is fixedly connected to the front side of the gearbox. The output shaft of the second motor passes through the interior of the gearbox and is fixedly connected to a rotating rod. A second bevel gear is fixedly connected to the outer wall of the rotating rod, and a first bevel gear is meshed with the bottom of the second bevel gear. A rotating shaft that is rotatably connected to the horizontal plate is fixedly connected to the bottom of the first bevel gear, and the bottom of the rotating shaft passes through the bottom of the horizontal plate and is fixedly connected to an auger.

[0013] According to an exemplary embodiment of this disclosure, the outer wall of the rotating rod is rotatably connected to the gearbox and the dust collector body respectively. The rear end of the rotating rod passes through the gearbox and extends to the rear outer wall of the dust collector body and is fixedly connected to a bevel gear three. The left side of the bevel gear three is meshed with a bevel gear four. A connecting plate is fixedly connected to the opposite faces of the two rear left and right legs. A vertical plate is fixedly connected to the top of the connecting plate. A rotating round rod that is rotatably connected to the vertical plate is fixedly connected to the left side of the bevel gear four. The left end of the rotating round rod passes through the left side wall of the vertical plate and is fixedly connected to a rotating disk. A limit slider is fixedly connected to the left side of the rotating disk away from its center.

[0014] According to an exemplary embodiment of this disclosure, a swing arm is rotatably connected to the lower left side of the vertical plate. The outer wall of the swing arm has a rectangular groove that limits sliding with the outer wall of the limiting slider. A sector gear is fixedly connected to the bottom of the swing arm. Two hollow slide blocks symmetrically arranged front and rear are fixedly connected to the lower left side of the vertical plate. A rack that meshes with the sector gear is slidably connected inside the two hollow slide blocks. An impact block is fixedly connected to the front side of the rack. The impact block periodically impacts the outer wall of the dust collector. The controller is electrically connected to the second motor.

[0015] The bag pulse dust collector for manufactured sand production provided in this embodiment of the invention has the following beneficial effects: 1. This invention, by setting up a blowpipe angle adjustment component, utilizes a motor to drive bevel gears one and two, which in turn drive multiple blowpipes to achieve synchronous and precise angle rotation via connecting short and long rods. This design can dynamically adjust the blowing angle of the blowpipes according to the dust accumulation in different areas of the filter bag, ensuring that the high-pressure pulse airflow can fully cover all parts of the filter bag. This effectively avoids cleaning dead zones caused by fixed-angle blowing, significantly improving the uniformity and thoroughness of cleaning, thereby reducing the operating resistance of the dust collector and extending the service life of the filter bag.

[0016] 2. This invention utilizes a quick-change bag cage assembly, employing a micro-motor to drive a worm gear mechanism, which in turn rotates a ring plate. This rotation, through the engagement of an arc-shaped groove and a sliding sleeve, drives multiple limiting arc-shaped blocks to move synchronously, achieving rapid locking or releasing of the bag cage. Compared to traditional spring plates or bolt fixing methods, this structure requires no tools; the assembly and disassembly of individual bag cages can be completed remotely via a controller, greatly simplifying the replacement process and significantly improving equipment maintenance efficiency and operator convenience.

[0017] 3. This invention utilizes a spiral conveyor and vibratory ash removal assembly, employing a single motor as the power source. A precision bevel gear transmission system simultaneously drives the auger to rotate and the impact blocks to reciprocate. On one hand, the auger forcibly pushes the manufactured sand dust at the bottom of the dust collector towards the exhaust pipe, preventing dust bridging or accumulation at the outlet. On the other hand, the impact blocks periodically hammer the outer wall of the dust collector, generating vibration waves that loosen the internal dust, preventing it from adhering to the inner wall and forming clumps. This combination of spiral conveying and vibration ensures smooth and efficient dust discharge, completely solving the problem of poor ash removal caused by the high density and easy deposition of manufactured sand dust. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from a rear viewpoint; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the structure of the jet pipe angle adjustment assembly of the present invention; Figure 5 This is a schematic diagram of another jet pipe angle adjustment assembly of the present invention. Figure 6 This is a schematic diagram of the quick-change bag cage assembly of the present invention; Figure 7 This is a schematic diagram of another quick-change bag cage assembly of the present invention; Figure 8 This is a schematic diagram of the limiting component in the quick-change bag cage assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the screw conveyor and vibrating ash removal assembly of the present invention. Figure 10 This is another schematic diagram of the structure of the screw conveyor and vibrating ash removal assembly of the present invention; Figure 11 This is a schematic diagram of the structure of some components of the present invention.

[0020] In the diagram: 1. Dust collector housing; 10. Support leg; 11. Dust exhaust pipe; 12. Dust exhaust valve; 13. Controller; 14. Inlet pipe; 15. Air duct; 16. Fan; 17. Exhaust pipe; 2. Jet pipe angle adjustment assembly; 20. Jet pipe; 21. Air tank; 22. Right-angle pipe; 23. Pulse solenoid valve; 24. Connecting short rod; 25. Connecting long rod; 26. Motor 1; 27. Bevel gear 1; 28. Bevel gear 2; 3. Bag cage quick change assembly; 30. Fixing plate; 31. Circular slot; 32. Bag cage; 33. Annular groove; 34. Circular plate; 35. Annular plate; 36. Worm gear; 37. Side 38. Plate; 39. Worm gear; 30. Micro motor; 310. Arc groove; 311. Fixed rod; 312. Sliding sleeve; 313. Rotating rod; 314. Limiting arc block; 4. Screw conveyor and vibrating ash discharge assembly; 40. Horizontal plate; 41. Gearbox; 42. Motor II; 43. Bevel gear I; 44. Bevel gear II; 45. Screw auger; 46. Rotating rod; 47. Bevel gear III; 48. Bevel gear IV; 49. Vertical plate; 410. Rotary disk; 411. Limiting slider; 412. Swing rod; 413. Rectangular groove; 414. Sector gear; 415. Hollow slide; 416. Rack; 417. Impact block. Detailed Implementation

[0021] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0023] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0026] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0027] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0028] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0029] like Figures 1-3 As shown, it illustrates a bag filter pulse dust collector for manufactured sand production according to an embodiment of the present invention, comprising: The dust collector 1 has four support legs 10 fixedly connected to the bottom of its outer wall. A controller 13 is fixedly connected to the front of the dust collector 1. A dust discharge pipe 11 is fixedly connected to the bottom of the dust collector 1. A dust discharge valve 12, which is electrically connected to the controller 13, is fixedly connected to the outer wall of the dust discharge pipe 11. An air inlet pipe 14 is fixedly connected to the lower right side of the dust collector 1. An air guide pipe 15 is fixedly connected to the upper left side of the dust collector 1. A fan 16 is fixedly connected to the end of the air guide pipe 15 away from the dust collector 1. An exhaust pipe 17 is fixedly connected to the top air outlet of the fan 16. The blowpipe angle adjustment component 2 is located on the upper inner and outer sides of the dust collector 1. The blowpipe angle adjustment component 2 is used to adjust the angle of the blowpipe to avoid blowpipe dead angles. The quick-change bag cage assembly 3 is located inside the dust collector housing 1. The quick-change bag cage assembly 3 can quickly disassemble and install the bag cage, greatly shortening the replacement time of a single bag cage and improving maintenance efficiency. The screw conveyor and vibration dust removal assembly 4 is located on the lower inner and outer sides of the dust collector 1. The screw conveyor and vibration dust removal assembly 4 can vibrate and loosen the manufactured sand dust accumulated in the dust collector 1, and cooperate with the screw conveyor to force push it to avoid dust accumulation.

[0030] In some examples, four support legs 10 are welded and fixed to the bottom of the outer wall of the dust collector 1 to support the entire device. A controller 13 is embedded and fixed on the front side panel of the dust collector 1. The controller 13 can be, for example, a Siemens S7-200SMART series PLC controller. A dust discharge pipe 11 is welded and connected to the center of the bottom of the dust collector 1. A dust discharge valve 12 is connected to the outer flange of the dust discharge pipe 11. For example, a pneumatic butterfly valve can be used. The dust discharge valve 12 is electrically connected to the controller 13. An air inlet pipe 14 is opened and welded to the lower right side of the dust collector 1 to introduce dust-laden gas. An air guide pipe 15 is opened and welded to the upper left side of the dust collector 1. A fan 16 is connected to the far end of the air guide pipe 15 through a flange. For example, a C6-48 series centrifugal fan can be used. An exhaust pipe 17 is connected to the top air outlet of the fan 16 through a flange to discharge the purified gas.

[0031] like Figures 4-5 As shown, it illustrates a blowpipe angle adjustment assembly 2 in another embodiment of the present invention. The blowpipe angle adjustment assembly 2 includes an air tank 21, which is fixedly connected to the upper rear side wall of the dust collector 1. Several right-angle tubes 22 are fixedly connected to the top of the outer wall of the air tank 21 at equal intervals. Pulse solenoid valves 23 are fixedly connected to the outer walls of the several right-angle tubes 22.

[0032] Inside the dust collector 1, several blow pipes 20 are rotatably connected via sealed bearings. The rear ends of the blow pipes 20 all penetrate into the rear side wall of the dust collector 1 and are rotatably connected to the corresponding right-angle pipes 22. The front ends of the blow pipes 20 all penetrate into the front side of the dust collector 1 and are fixedly connected to the connecting short rods 24. The ends of the connecting short rods 24 away from the blow pipes 20 are rotatably connected to the connecting long rods 25.

[0033] A bevel gear 28 is fixedly connected to the rear outer wall of the left blowpipe 20. A bevel gear 27 is meshed with the top of the bevel gear 28. A motor 26 is fixedly connected to the rear wall of the dust collector 1. The output shaft of the motor 26 is fixedly connected to the bevel gear 27. The controller 13 is electrically connected to the motor 26 and several pulse solenoid valves 23.

[0034] In some examples, the gas storage tank 21 is fixedly connected to the upper rear wall of the dust collector 1 by a clamp. Several equally spaced right-angle tubes 22 are welded to the top of the outer wall of the gas storage tank 21. A pulse solenoid valve 23, such as a DMF-Z-40S type pulse valve, is fixedly connected in series to the outer wall of each right-angle tube 22. Several blowpipes 20 are rotatably connected inside the dust collector 1 via sealed bearings. The rear ends of these blowpipes 20 penetrate the rear wall of the dust collector 1 and are rotatably connected to the corresponding right-angle tubes 22 via rotary joints. The front ends of the blowpipes 20 penetrate the front of the dust collector 1. A connecting short rod 24 is fixedly connected to the end of the blow pipe 20. The ends of all the connecting short rods 24 away from the blow pipe 20 are rotatably connected to a connecting long rod 25. A bevel gear 28 is fixedly sleeved on the outer rear side of the blow pipe 20 located on the far left. A bevel gear 27 is meshed with the top of the bevel gear 28. A motor 26 is fixedly connected to the rear side of the dust collector 1 through a motor mount. For example, a 57BYG250H stepper motor can be used. The output shaft of the motor 26 is fixedly connected to the bevel gear 27 through a flat key. The controller 13 is electrically connected to the motor 26 and all the pulse solenoid valves 23 respectively.

[0035] like Figures 6-8 As shown, a quick-change bag cage assembly 3 is shown in another embodiment of the present invention. The quick-change bag cage assembly 3 includes a fixing plate 30, which is fixedly connected to the upper part of the dust collector housing 1. The fixing plate 30 has a plurality of equally spaced circular slots 31 inside. A circular plate 34 is fixedly connected to the inner wall of each of the circular slots 31. An annular plate 35 is rotatably connected to the top of the circular plate 34. A worm gear 36 is fixedly connected to the bottom of the outer wall of the annular plate 35.

[0036] Two symmetrical side plates 37 are fixedly connected to the top edge of the circular plate 34. The opposite surfaces of the two side plates 37 are rotatably connected to a worm 38 that meshes with a worm gear 36. A micro motor 39 is fixedly connected to the right side wall of the right side plate 37. The output shaft of the micro motor 39 passes through to the left side wall of the right side plate 37 and is fixedly connected to the worm 38. The outer wall of the annular plate 35 is provided with several arc-shaped grooves 310 arranged in an annular array. Sliding sleeves 312 are rotatably connected inside each of the several arc-shaped grooves 310.

[0037] The top of the circular plate 34 is fixedly connected to several fixed rods 311 arranged in a ring array. The outer walls of the fixed rods 311 are rotatably connected to rotating rods 313. The rotating rods 313 are respectively sleeved inside the corresponding sliding sleeves 312. The end of the rotating rod 313 away from the fixed rod 311 is fixedly connected to a limiting arc block 314. The inside of the circular plate 34 is provided with a bag cage 32. The top of the outer wall of the bag cage 32 is provided with an annular groove 33. The limiting arc blocks 314 clamp and limit the annular groove 33. The controller 13 is electrically connected to the micro motor 39.

[0038] In some examples, the fixed plate 30 has several equally spaced circular slots 31. A circular plate 34 is bolted to the inner wall of each slot 31. An annular plate 35 is rotatably connected to the top of the circular plate 34. A worm gear 36 is integrally formed on the bottom of the outer wall of the annular plate 35. Two symmetrical side plates 37 are fixedly connected to the top edge of the circular plate 34. A worm 38, meshing with the worm gear 36, is rotatably connected between the two side plates 37. A micro motor 39, such as a GM12-15BY micro DC geared motor, is fixedly connected to the right side wall of the right side plate 37 by screws. The output shaft of the micro motor 39 passes through the right side plate 37 and is fixedly connected to the worm 38 via a coupling. The outer wall of the annular plate 35 has several annularly arrayed arc-shaped grooves 310. Each arc-shaped groove 310 has a rotating... A sliding sleeve 312 is connected to the top of the circular plate 34. Several fixed rods 311 arranged in an annular array are also fixedly connected to the top of the circular plate 34. A rotating rod 313 is rotatably connected to the outer wall of each fixed rod 311. Each rotating rod 313 is movably sleeved inside the corresponding sliding sleeve 312. A limiting arc block 314 is fixedly connected to the end of the rotating rod 313 away from the fixed rod 311. A bag cage 32 is provided in the central hole of the circular plate 34. An annular groove 33 is opened on the top of the outer wall of the bag cage 32. The worm gear 38 and worm wheel 36 are driven by the micro motor 39 to drive the annular plate 35 to rotate, so that the sliding sleeve 312 slides in the arc groove 310 and drives the rotating rod 313 to rotate around the fixed rod 311, thereby driving all the limiting arc blocks 314 to move synchronously to the center or centrifugal, realizing the clamping and limiting or releasing of the annular groove 33. The controller 13 is electrically connected to the micro motor 39.

[0039] like Figures 9-11As shown, a spiral conveying and vibrating dust removal assembly 4 is illustrated in another embodiment of the present invention. The spiral conveying and vibrating dust removal assembly 4 includes a horizontal plate 40, which is fixedly connected to the lower interior of the dust collector 1. A gearbox 41 is fixedly connected to the top of the horizontal plate 40. A second motor 42 is fixedly connected to the front side of the gearbox 41. The output shaft of the second motor 42 passes through the interior of the gearbox 41 and is fixedly connected to a rotating rod 46. A second bevel gear 44 is fixedly connected to the outer wall of the rotating rod 46. A first bevel gear 43 is meshed with the bottom of the second bevel gear 44. A rotating shaft that is rotatably connected to the horizontal plate 40 is fixedly connected to the bottom of the first bevel gear 43. The bottom of the rotating shaft passes through the bottom of the horizontal plate 40 and is fixedly connected to an auger 45.

[0040] The outer wall of the rotating rod 46 is rotatably connected to the gearbox 41 and the dust collector 1 respectively. The rear end of the rotating rod 46 passes through the gearbox 41 and extends to the rear outer wall of the dust collector 1 and is fixedly connected to the bevel gear 3 47. The left side of the bevel gear 3 47 is meshed with the bevel gear 48. The opposite faces of the two rear left and right support legs 10 are fixedly connected to the connecting plate. The top of the connecting plate is fixedly connected to the vertical plate 49. The left side of the bevel gear 48 is fixedly connected to the rotating rod that is rotatably connected to the vertical plate 49. The left end of the rotating rod passes through the left side wall of the vertical plate 49 and is fixedly connected to the rotating disk 410. The left side of the rotating disk 410 is fixedly connected to the limit slider 411 away from its center.

[0041] A swing arm 412 is rotatably connected to the lower left side of the vertical plate 49. The outer wall of the swing arm 412 is provided with a rectangular groove 413 that limits the sliding of the limit slider 411. A sector gear 414 is fixedly connected to the bottom of the swing arm 412. Two hollow slide blocks 415 are fixedly connected to the lower left side of the vertical plate 49. A rack 416 that meshes with the sector gear 414 is slidably connected inside the two hollow slide blocks 415. An impact block 417 is fixedly connected to the front side of the rack 416. The impact block 417 periodically impacts the outer wall of the dust collector 1. The controller 13 is electrically connected to the motor 42.

[0042] In some examples, a gearbox 41 is fixedly connected to the top of the horizontal plate 40, and a second motor 42 is fixedly connected to the front side of the gearbox 41 via a motor mount. For example, a Y90L-4 type three-phase asynchronous motor can be used. The output shaft of the second motor 42 extends into the gearbox 41 and is fixedly connected to a rotating rod 46. A second bevel gear 44 is fixedly connected to the outer wall of the rotating rod 46. A first bevel gear 43 is meshed with the bottom of the second bevel gear 44. A rotating shaft that is rotatably connected to the horizontal plate 40 via a bearing is fixedly connected to the bottom of the first bevel gear 43. The bottom of the rotating shaft passes through the horizontal plate 40 and is fixedly connected to a hinge. Dragon 45, rotating rod 46 extends rearward, its rear end passing through the rear side wall of gearbox 41 and dust collector 1, and extending to the outside of dust collector 1. A bevel gear 3 47 is fixedly connected to its end. A bevel gear 48 is meshed with the left side of bevel gear 3 47. A connecting plate is welded and fixed between the two rear support legs 10. A vertical plate 49 is vertically welded to the top of this connecting plate. A rotating round rod is fixedly connected to the left side of bevel gear 48. This rotating round rod is rotatably connected to the vertical plate 49 via a bearing. Its left end passes through the vertical plate 49 and is fixedly connected to a rotating disk 410. A cylindrical limiting slider 411 is fixedly connected to the left side of 410 near its edge, i.e., away from its center. A rocker arm 412 is rotatably connected to the lower left side of the vertical plate 49 via a pin. A rectangular groove 413 is provided on the rocker arm 412, and the limiting slider 411 is embedded in the rectangular groove 413 and slides with it. A sector gear 414 is fixedly connected to the bottom of the rocker arm 412. Two hollow slide blocks 415 symmetrically arranged are also fixedly connected to the lower left side of the vertical plate 49. A vertically arranged rack 416 is slidably connected in the two hollow slide blocks 415. The rack 416 and... A sector gear 414 meshes with the rack 416, and a rubber impact block 417 is fixedly connected to the front side of the rack 416, which faces the side wall of the dust collector. After the second motor 42 is started, it drives the auger 45 to rotate through the bevel gear set. At the same time, it drives the rotating disk 410 to rotate through the bevel gear 47 and bevel gear 48. The limit slider 411 on the rotating disk 410 drives the rack 416 to reciprocate back and forth in the hollow slide block 415 through the swing rod 412 and the sector gear 414, so that the impact block 417 periodically impacts the outer wall of the dust collector 1. The controller 13 is electrically connected to the second motor 42.

[0043] The working principle and usage process of this invention: After the equipment is started, the gas containing manufactured sand dust enters the dust collection box 1 from the inlet pipe 14 under the negative pressure generated by the fan 16. The dust-laden airflow flows upward and when it passes the filter bag on the surface of the bag cage, the dust is intercepted and adheres to the outer surface of the filter bag. The purified clean gas passes through the filter bag and enters the inside of the filter bag. Then it flows upward through the circular slot 31 area on the fixed plate 30, gathers and is discharged from the air guide pipe 15, and is discharged into the atmosphere through the fan 16 and the exhaust pipe 17.

[0044] As the filtration process continues, the dust layer on the outer surface of the filter bag gradually thickens, increasing the airflow resistance inside the dust collector 1. At this point, the controller 13, according to a preset program, activates the blowpipe angle adjustment assembly 2 for dust removal. The controller 13 first starts the motor 26, whose output shaft drives the bevel gear 27 to rotate. The bevel gear 27 then drives the bevel gear 28, which meshes with it, to rotate. The bevel gear 28 is fixedly connected to the leftmost blowpipe 20, causing it to rotate. Simultaneously, the front ends of all blowpipes 20 are rotatably connected to the same long connecting rod 25 via connecting short rods 24, forming a parallel linkage mechanism. When the leftmost blowpipe 20 rotates, it moves the long connecting rod 25, connecting... The long rod 25 then drives all the other blowpipes 20 to rotate at the same angle through the other short rods 24. After the blowpipe 20 rotates to the preset optimal blowing angle, the controller 13 stops the motor 26 and locks the current position. Then, the controller 13 opens the pulse solenoid valves 23 on each right-angle pipe 22 connected to the air tank 21 in sequence or in groups. The high-pressure gas stored in the air tank 21 instantly enters the corresponding blowpipe 20 through the right-angle pipe 22 and is ejected at high speed from the nozzle at the bottom of the blowpipe 20. It impacts the inside of the filter bag at a set angle, causing the filter bag to shake violently. The machine sand dust attached to the outer surface is peeled off and falls off. By adjusting different blowing angles, the filter bag can be cleaned in all directions, eliminating cleaning dead angles.

[0045] When a damaged filter bag needs to be replaced, the operator issues a command through the controller 13 to start the micro motor 39 at the corresponding workstation. The output shaft of the micro motor 39 drives the worm gear 38 to rotate, and the worm gear 38 drives the worm wheel 36 meshing with it to rotate. Since the worm wheel 36 is fixed to the bottom of the outer wall of the annular plate 35, the annular plate 35 also rotates on the top of the circular plate 34. The annular plate 35 has an arc-shaped groove 310. The sliding sleeve 312 rotates within the arc-shaped groove 310 and is fitted onto the rotating rod 313, while the rotating rod 313 slides within the sliding sleeve 312. When the annular plate 35 rotates in the forward direction, the arc-shaped groove 310 forces the sliding sleeve 312 to move. The sliding sleeve 312 simultaneously drives the rotating rod 313 to swing outward around the fixed rod 311, thereby... The limiting arc block 314 at the end of the rotating rod 313 disengages from the annular groove 33 at the top of the bag cage 32, releasing the lock on the bag cage 32. At this time, the operator can directly pull out the bag cage 32 for replacement. When installing a new bag cage 32, it is placed into the center hole of the circular plate 34, so that the annular groove 33 is aligned with the position of the limiting arc block 314. Then, the controller 13 commands the micro motor 39 to rotate in the opposite direction, the worm gear 38 drives the worm wheel 36 and the annular plate 35 to rotate in the opposite direction, the sliding sleeve 312 in the arc groove 310 rotates, and the sliding sleeve 312 drives the rotating rod 313 to swing inward around the fixed rod 311, so that the limiting arc block 314 moves centripetally and is locked into the annular groove 33, tightly clamping and fixing the bag cage 32 from multiple directions, completing the quick replacement.

[0046] The manufactured sand dust blown off by the pulse airflow falls into the bottom of the dust collector 1 and accumulates in the cone area above the horizontal plate 40. The controller 13 controls the second motor 42 to start. The output shaft of the second motor 42 drives the rotating rod 46 to rotate. The second bevel gear 44 on the rotating rod 46 drives the first bevel gear 43 to rotate. The first bevel gear 43 drives the auger 45 below to rotate continuously at the bottom of the horizontal plate 40 through the rotating shaft. The auger 45 gathers the dust accumulated at the bottom towards the center and forces it downward to the dust discharge pipe 11. At the same time, the controller 13 opens the dust discharge valve 12 to discharge the dust.

[0047] At the same time, the rear end of the rotating rod 46 drives the bevel gear 3 47 to rotate synchronously. The bevel gear 3 47 drives the bevel gear 48 meshing with it to rotate. The bevel gear 48 drives the rotating disk 410 to rotate on the left side of the vertical plate 49 through the rotating rod. The eccentrically fixed limiting slider 411 on the rotating disk 410 then performs a circular motion. The limiting slider 411 is embedded in the rectangular groove 413 of the swing rod 412. Therefore, the circular motion of the limiting slider 411 will drive the swing rod 412 to swing back and forth around its hinge point with the vertical plate 49. The bottom of the swing rod 412 is fixedly connected to The sector gear 414 swings back and forth, driving the rack 416 meshing with it to make back-and-forth linear motion between the two hollow slide blocks 415. The impact block 417, which is fixedly connected to the front side of the rack 416, moves back and forth with the rack 416 and periodically impacts the outer wall of the dust collector 1. The mechanical vibration generated by the impact is transmitted to the inside of the box, making the accumulated machine sand dust loose and preventing it from caking on the inner wall of the box or the horizontal plate 40, thereby assisting the auger 45 to push the dust to the dust discharge pipe 11 for discharge more effectively.

[0048] It should be noted that the dust discharge valve 12, the fan 16, the various motors and valves are all common models on the market, and each component is a device or equipment that exists in the prior art or can be implemented by the prior art. Their power supply, specific composition and principle are clear to those skilled in the art. At the same time, the fixed connection method mentioned in this invention can adopt the connection methods that exist in the prior art and are common, such as bolts, welding and bonding, so they will not be described in detail.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bag filter pulse dust collector for manufactured sand production, characterized in that, include: The dust collector (1) has four legs (10) fixedly connected to the bottom of its outer wall. The dust collector (1) has a controller (13) fixedly connected to its front side. The dust collector (1) has a dust discharge pipe (11) fixedly connected to its bottom. The dust discharge pipe (11) has a dust discharge valve (12) electrically connected to the controller (13) fixedly connected to its outer wall. The dust collector (1) has an air inlet pipe (14) fixedly connected to its lower right side. The dust collector (1) has an air guide pipe (15) fixedly connected to its upper left side. The air guide pipe (15) has a fan (16) fixedly connected to its end away from the dust collector (1). The air outlet of the fan (16) has an exhaust pipe (17) fixedly connected to its top outlet. The blowpipe angle adjustment assembly (2) is located on the upper inner and outer sides of the dust collector (1); A quick-change bag cage assembly (3) is installed inside the dust collector housing (1); The spiral conveyor and vibrating ash removal assembly (4) is located on the lower inner and outer sides of the dust collector box (1).

2. The baghouse pulse dust collector for manufactured sand production according to claim 1, characterized in that, The jet pipe angle adjustment assembly (2) includes an air tank (21), which is fixedly connected to the upper rear side wall of the dust collector (1). Several right-angle tubes (22) are fixedly connected to the top of the outer wall of the air tank (21), and pulse solenoid valves (23) are fixedly connected to the outer walls of the several right-angle tubes (22).

3. A bag filter pulse dust collector for manufactured sand production according to claim 2, characterized in that, The dust collector housing (1) is rotatably connected to several blow pipes (20) via sealed bearings. The rear ends of the blow pipes (20) all penetrate to the rear side wall of the dust collector housing (1) and are rotatably connected to the corresponding right-angle pipes (22). The front ends of the blow pipes (20) all penetrate to the front side of the dust collector housing (1) and are fixedly connected to connecting short rods (24). The ends of the connecting short rods (24) away from the blow pipes (20) are rotatably connected to connecting long rods (25).

4. A bag filter pulse dust collector for manufactured sand production according to claim 3, characterized in that, The outer rear wall of the leftmost blow pipe (20) is fixedly connected to a bevel gear two (28), the top of the bevel gear two (28) is meshed with a bevel gear one (27), the rear wall of the dust collector (1) is fixedly connected to a motor one (26), the output shaft of the motor one (26) is fixedly connected to the bevel gear one (27), and the controller (13) is electrically connected to the motor one (26) and several pulse solenoid valves (23).

5. A bag filter pulse dust collector for manufactured sand production according to claim 1, characterized in that, The quick-change bag cage assembly (3) includes a fixing plate (30), which is fixedly connected to the upper part of the dust collector housing (1). The fixing plate (30) has several equally spaced circular slots (31) inside. A circular plate (34) is fixedly connected to the inner wall of each of the circular slots (31). An annular plate (35) is rotatably connected to the top of the circular plate (34). A worm gear (36) is fixedly connected to the bottom of the outer wall of the annular plate (35).

6. A bag filter pulse dust collector for manufactured sand production according to claim 5, characterized in that, Two symmetrical side plates (37) are fixedly connected to the top edge of the circular plate (34). The opposite surfaces of the two side plates (37) are rotatably connected to a worm (38) that meshes with a worm wheel (36). A micro motor (39) is fixedly connected to the right side wall of the right side plate (37). The output shaft of the micro motor (39) passes through the left side wall of the right side plate (37) and is fixedly connected to the worm (38). The outer wall of the annular plate (35) is provided with several arc-shaped grooves (310) arranged in an annular array. Each of the arc-shaped grooves (310) is rotatably connected to a sliding sleeve (312).

7. A bag filter pulse dust collector for manufactured sand production according to claim 6, characterized in that, The top of the circular plate (34) is fixedly connected to several fixed rods (311) arranged in a ring array. The outer walls of the fixed rods (311) are rotatably connected to rotating rods (313). The rotating rods (313) are respectively sleeved inside the corresponding sliding sleeves (312). The end of the rotating rod (313) away from the fixed rod (311) is fixedly connected to a limiting arc block (314). The inside of the circular plate (34) is provided with a bag cage (32). The top of the outer wall of the bag cage (32) is provided with an annular groove (33). The limiting arc blocks (314) clamp and limit the annular groove (33). The controller (13) is electrically connected to the micro motor (39).

8. A bag filter pulse dust collector for manufactured sand production according to claim 1, characterized in that, The spiral conveying and vibrating dust removal assembly (4) includes a horizontal plate (40), which is fixedly connected to the lower part of the dust collector box (1). A gearbox (41) is fixedly connected to the top of the horizontal plate (40). A motor (42) is fixedly connected to the front side of the gearbox (41). The output shaft of the motor (42) passes through the inside of the gearbox (41) and is fixedly connected to a rotating rod (46). A bevel gear (44) is fixedly connected to the outer wall of the rotating rod (46). A bevel gear (43) is meshed with the bottom of the bevel gear (44). A rotating shaft that is rotatably connected to the horizontal plate (40) is fixedly connected to the bottom of the bevel gear (43). The bottom of the rotating shaft passes through the bottom of the horizontal plate (40) and is fixedly connected to an auger (45).

9. A bag filter pulse dust collector for manufactured sand production according to claim 8, characterized in that, The outer wall of the rotating rod (46) is rotatably connected to the gearbox (41) and the dust collector (1) respectively. The rear end of the rotating rod (46) passes through the gearbox (41) and extends to the rear outer wall of the dust collector (1) and is fixedly connected to the bevel gear three (47). The left side of the bevel gear three (47) is meshed with the bevel gear four (48). The two rear legs (10) are fixedly connected to the opposite sides with a connecting plate. The top of the connecting plate is fixedly connected to a vertical plate (49). The left side of the bevel gear four (48) is fixedly connected to a rotating round rod that is rotatably connected to the vertical plate (49). The left end of the rotating round rod passes through the left side wall of the vertical plate (49) and is fixedly connected to a rotating disk (410). The left side of the rotating disk (410) is fixedly connected to a limit slider (411) away from its center.

10. A bag filter pulse dust collector for manufactured sand production according to claim 9, characterized in that, A swing arm (412) is rotatably connected to the lower left side of the vertical plate (49). The outer wall of the swing arm (412) is provided with a rectangular groove (413) that limits sliding with the outer wall of the limiting slider (411). A sector gear (414) is fixedly connected to the bottom of the swing arm (412). Two hollow slide blocks (415) symmetrically connected to the lower left side of the vertical plate (49) are fixedly connected. A rack (416) that meshes with the sector gear (414) is slidably connected inside the two hollow slide blocks (415). An impact block (417) is fixedly connected to the front side of the rack (416). The impact block (417) periodically impacts the outer wall of the dust collector box (1). The controller (13) is electrically connected to the second motor (42).

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